WO2019109982A1 - 割草机 - Google Patents
割草机 Download PDFInfo
- Publication number
- WO2019109982A1 WO2019109982A1 PCT/CN2018/119591 CN2018119591W WO2019109982A1 WO 2019109982 A1 WO2019109982 A1 WO 2019109982A1 CN 2018119591 W CN2018119591 W CN 2018119591W WO 2019109982 A1 WO2019109982 A1 WO 2019109982A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cutter
- assembly
- blade
- lawn mower
- cutting
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
- A01D34/30—Driving mechanisms for the cutters
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/006—Control or measuring arrangements
- A01D34/008—Control or measuring arrangements for automated or remotely controlled operation
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
- A01D34/03—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
- A01D34/04—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with cutters at the front
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
- A01D34/30—Driving mechanisms for the cutters
- A01D34/37—Driving mechanisms for the cutters electric
Definitions
- the invention relates to the technical field of garden tool equipment, and in particular to a lawn mower.
- the intelligent lawn mower can walk and trim the lawn on the lawn within the boundary line or other limited range.
- the traditional lawn mower the cutting mechanism is mostly the central rotary cutter centered under the casing, the cutter distance The outside of the casing is far away, and when the mower walks to the edge of the lawn, the mowing machine automatically turns, so that the lawn near the boundary line cannot be cut.
- the area of the cutter head is relatively large compared to the entire intelligent lawn mower, which makes the structure of the intelligent lawn mower not more compact.
- the intelligent mower can be installed with relatively reciprocating tools, which frequently rub during work, resulting in reduced or damaged blade cutting capability, requiring user replacement. .
- the problem to be solved by the present invention is to provide a smart lawn mower that is convenient for tool removal.
- a lawn mower comprising: a fuselage; a cutter drive assembly including a cutting motor mounted to the fuselage; a cutter assembly mounted to the fuselage, driven by the cutting motor, the cutter assembly including the first a cutting member and a second cutting member, the first cutting member and the second cutting member are reciprocated relative to each other to cut grass; the lawn mower includes a locking mechanism, and the cutter assembly is detachably mounted by the locking mechanism In the fuselage.
- the latching mechanism includes a bottom cover mounted to the body such that at least a portion of the cutter assembly is clamped between the bottom cover and the body.
- the latching mechanism includes a latching element disposed to the body and/or the bottom cover, the latching element being movable between a locked position and an unlocked position, in the locked position
- the bottom cover is coupled to the body, and the bottom cover is disengaged from the body when in the unlocked position.
- the latching element includes a buckle for engaging the bottom cover with the fuselage.
- the latching mechanism includes a threaded connection assembly through which the cutter assembly is mounted to the fuselage.
- the cutter drive assembly includes a rotary drive member coupled to the cutting motor for actuation by the cutting motor; the cutter assembly including an engagement transmission member mated with the rotary transmission member to The cutting motor is caused to drive the cutter assembly.
- the rotary transmission element includes at least one protrusion, the engagement transmission element including a recess that receives the at least one protrusion.
- the first cutting member includes a first tool holder and a first blade, the first blade is driven by the cutter drive assembly, the first blade passes through a connector and the first A tool holder is detachably connected.
- the connector comprises a fixed connector or a movable connector.
- the movable link includes a first transmission member and a second transmission member, the first transmission member including opposite first and second ends, respectively associated with the first blade And the second cutting member is movably connected; the second transmission member is movably connected to the first transmission member, and is driven by the cutting motor to drive the first blade to reciprocate relative to the second cutting member.
- the cutter assembly includes a pretensioning member disposed at least one of the first cutting member and the second cutting member to cause the first cutting member At least a portion of the second cutting member is pressed.
- the invention has the beneficial effects that the tool assembly and the fuselage are quickly disassembled by the locking mechanism, and the user can change the tool assembly.
- a lawn mower comprising: a body; a cutter having a first cutter and a second cutter capable of relatively reciprocating motion for performing a cutting operation; a power transmission system disposed on the body and configured to drive the cutting At least a first tool reciprocates relative to the second tool; wherein the power transmission system includes: a driving mechanism for providing a driving force; and a first transmission mechanism having at least one first connecting arm, the first The connecting arm includes a first end portion and a second end portion disposed opposite to each other, the first end portion being rotatably coupled to the first cutter, and the second end portion being rotatably coupled to the second cutter directly or indirectly; a second transmission mechanism configured to be driven by the drive mechanism to drive movement of at least one of the first arms, thereby driving at least a first tool that is directly or indirectly rotationally coupled to the first leg relative to the second tool Make a reciprocating motion to perform the cutting work.
- the power transmission system is rotatably connected to the first tool and the second tool in the cutter through at least one first connecting arm at the same time, the contact is rolling friction, avoiding sliding friction caused by using the conventional guiding component, rolling friction Less than sliding friction, it can reduce contact wear and transmission loss, reduce noise and extend service life.
- the second cutter is connected to the second end by a connecting plate, and the two ends of the first connecting arm respectively pass the first connecting member and the second connecting member and the first a cutter and the connecting plate are rotatably connected; a first rotating sleeve is disposed between the first connecting member and the first end portion and the first cutter; and the second connecting member and the second connecting member are A second swivel sleeve is disposed between the end and the connecting plate.
- the first swivel sleeve and/or the second swivel sleeve are copper sleeves or bearings.
- first connecting member and the second connecting member respectively correspond to a first pin shaft and a second pin shaft, and both ends of the first connecting arm pass the first pin shaft and the first The two pins are hinged to the first cutter and the connecting plate, respectively.
- the number of the first connecting arms is two, the first cutter, the connecting plate and the two first connecting arms constitute a link mechanism; the second transmission mechanism and at least An intermediate portion of one of the first arms is connected.
- the two ends of the first connecting arm are respectively rotatably connected to the first cutter and the second cutter through a third connecting member and a fourth connecting member; in the third connecting member a third rotating sleeve is disposed between the first end portion and the first cutter; a fourth rotating sleeve is disposed between the fourth connecting member and the second end portion and the second cutter.
- the linkage mechanism is a parallel four-bar linkage mechanism
- the first cutter is capable of reciprocating linear motion along a long axis direction of the second cutter relative to the second cutter.
- the second transmission mechanism includes: a crank configured to be driven by the drive mechanism to transmit a driving force; and a rocker configured to be driven by the crank to drive the rocker The first arm moves.
- the crank is an eccentric, and when the eccentric rotates one revolution, the first cutter in the cutter is just driven to reciprocate for one cycle.
- the drive mechanism includes: a motor; a reduction gear assembly configured to transmit a driving force of the motor to the crank.
- the powertrain system further includes a support frame configured to provide support for the drive mechanism, the support frame being disposed on the cutter.
- the present invention also provides a power transmission system including: a driving mechanism for providing a driving force; a first transmission mechanism having at least one first connecting arm, the first connecting arm including a first end and a first end opposite to each other a second end, the first end being rotatably connected directly or indirectly with a first tool in the cutter, the second end being in direct or indirect rotational connection with a second tool in the cutter; the second transmission Configuring to be driven by the driving mechanism to drive at least one of the first arms to move, thereby driving at least a first tool that is directly or indirectly rotationally coupled to the first arm to reciprocate relative to the second tool for performing Cutting work.
- a lawn mower includes: a cutter assembly; a cutter drive assembly disposed at a top of the cutter assembly and coupled to the cutter assembly to drive the cutter assembly for mowing; a cover, the bottom cover being disposed at a bottom of the cutter assembly and detachably coupled to the cutter drive assembly to clamp at least a portion of the cutter assembly between the bottom cover and the cutter drive assembly; Disconnecting a switch, the tool removal switch being disposed on one of the bottom cover and the cutter drive assembly, the tool change switch being movable between a locked position and an unlocked position, and configured to be The bottom cover is coupled to the cutter drive assembly when the locked position is described, and the bottom cover is disengaged from the cutter drive assembly in the unlocked position.
- a lawn mower by detachably connecting a bottom cover with a cutter drive assembly, thereby clamping at least a portion of the cutter assembly between the cutter drive assembly and the bottom cover, by setting a tool change switch, It is convenient to control the assembly and disassembly of the bottom cover and the cutter drive assembly, which facilitates quick tool change and user experience.
- the tool removal switch is disposed on the cutter driving assembly and has a first engaging portion, and the bottom cover has a second engaging portion adapted to be engaged with the first engaging portion.
- the tool change switch further has a downwardly extending switch connecting arm, and the first snap portion is formed at a lower end of the switch connecting arm.
- the bottom cover further has an upwardly extending bottom cover connecting arm, and the second engaging portion is formed at an upper end of the bottom cover connecting arm.
- one of the first latching portion and the second latching portion forms a hook
- the other of the first latching portion and the second latching portion is formed to be suitable for The card slot in which the hook is hooked.
- the lawn mower further includes a resilient member disposed between the tool change switch and the cutter drive assembly.
- the tool dismounting switch is a push button switch
- the elastic element is a spring
- the axial ends of the spring are respectively connected to the cutter driving component and the button switch.
- the cutter drive assembly is provided with a support plate, and the support plate has a positioning portion for positioning the elastic element.
- the cutter drive assembly includes: a cutting motor coupled to the cutter assembly for driving the cutter assembly for mowing; a shroud, the shroud cover Outside the cutting motor, the tool removal switch is disposed on the shroud and the shroud has a relief port for avoiding the tool removal switch.
- the tool removal switch comprises two, and the two tool removal switches are disposed on opposite sides of the tool drive assembly.
- a lawn mower cutter apparatus includes: a fixed knife extending in a lateral direction; a movable knife disposed above the fixed knife and opposite to the fixed knife Reciprocating along the lateral direction; a connecting assembly, the connecting assembly being respectively coupled to the fixed knife and the movable knife to press at least a portion of the cutting edge of the movable knife against the cutting edge of the fixed knife.
- the lawnmower cutter apparatus increases the movement of the cutter by moving at least a part of the blade of the movable blade against the blade of the fixed blade so that the movable blade of the lawn mower reciprocates relative to the fixed blade in the lateral direction
- the friction between the blade edge of the knife and the blade edge of the fixed knife realizes the self-grinding effect, so that the blade edge can be kept sharp, the number of times of cutting the tool is reduced, the cutting efficiency is improved, and the use cost is reduced.
- the connecting assembly comprises: a positioning member mounted to the fixed knife, the movable knife having a sliding groove extending along the lateral direction, the positioning member being adapted to pass through The chute and reciprocable relative to the movable knife along a length direction of the chute; at least one pretensioning member, the pretensioning member being connected to at least one of the fixed knife and the movable knife At least a portion of the cutting edge of the moving knife is pressed against the cutting edge of the fixed knife.
- At least one of the pretensioning members is coupled between the fixed knife and the movable knife.
- At least one of the pretensioning members is a support platform, the support platform is disposed between the fixed knife and the movable knife, and the support platform is disposed away from a blade edge of the movable knife.
- the support table is disposed on a side surface of the fixed knife facing the movable knife, a side surface of the movable knife facing the fixed knife, and at least a side wall of the positioning member One on top.
- At least one of the pretensioning members is formed as a magnet, the magnet is disposed between the fixed knife and the movable knife, and the magnet is adjacent to the movable knife and/or the cutting edge of the fixed knife Settings.
- one end of the positioning member protrudes from the sliding slot and has a chuck having an outer dimension larger than a width dimension of the sliding slot, and at least one pretensioning member is formed between the chuck and the movable knife.
- Elastic components
- the connecting assembly includes a torsion spring, at least a portion of the torsion spring is stationary, and at least another portion of the torsion spring moves with the movable knife.
- the torsion spring is fixed to the fixed knife and away from the cutting edge of the fixed knife, and two ends of the torsion spring are respectively connected with the movable knife.
- the fixed knife is provided with a limiting pressing plate, and the torsion spring is fixed to the fixed knife by the limiting pressing plate.
- the fixed knife comprises a fixed knife holder and a fixed cutting blade mounted on the fixed knife holder, and the limiting pressing plate is integrally formed with the fixed knife holder.
- a lawn mower tool assembly comprising: a shroud; a cutter assembly, the cutter assembly being disposed in the shroud and spaced apart from an inner wall surface of the shroud; a drive assembly, The drive assembly is coupled to the cutter assembly for driving the cutter assembly for mowing; the blower assembly has a duct, an air inlet and an air outlet communicating with the air duct, and the air outlet A gap is formed between the cutter assembly and/or the cutter assembly and the shroud.
- the gap between the cutter assembly and/or the cutter assembly and the shield can be blown during the operation of the lawn mower to avoid clogging the cutter due to grass clippings.
- the problem of the inability to enter the grass due to the gap between the shields is beneficial to improve the cutting efficiency of the lawn mower and the user experience is better.
- the blowing assembly is driven by the drive assembly to form a gas stream.
- the air blowing assembly includes: a wind guiding member having the air duct and the air outlet; and a rotatable fan for supplying air into the air duct to form airflow.
- the fan is driven to rotate by the drive assembly.
- the fan is disposed in the air guiding member.
- the fan is a centrifugal fan.
- At least a portion of the air guiding member forms a curved tube that is curved towards the cutter assembly.
- the air guiding member forms a volute shape.
- the drive assembly is a motor and the motor includes a motor housing and a motor body, the fan being coupled to a motor shaft of the motor body, the air guide forming a portion of the motor housing.
- a lawn mower includes: a body; a traveling device, the traveling device is disposed on the body; a cutter device, the cutter device is disposed at a front side of the body and the cutter device Relative to the fuselage, the tooling device floats relative to the fuselage to cross an obstacle or climb a hill according to a front terrain.
- the lawn mower according to the embodiment of the present invention can better cut the corner position by arranging the cutter device on the front side of the body to improve the cutting effect; the cutter device can float relative to the body according to the front terrain. Thus, over obstacles or climbing, the mower's ability to adapt to complex terrain is improved.
- the lawn mower further comprises: a connection assembly, the connection assembly being respectively coupled to the fuselage and the cutter device to make the cutter device floatable relative to the fuselage.
- the connecting component is a linkage mechanism.
- connection assembly includes: a mounting seat disposed on one of the body and the cutter device; a movable push rod, one end of the push rod and the mount Connected, the other end of the push rod is coupled to the other of the fuselage and the cutter device.
- the connecting assembly comprises: a rotatable connecting shaft, the cutter device being pivotally connected to the fuselage by the connecting shaft.
- the lawn mower further includes: an obstacle-obscuring drive assembly, the obstacle-blocking drive assembly is disposed on the fuselage or the cutter device, and the obstacle-blocking drive assembly is connected to the The assembly is coupled to drive the cutter device to move relative to the fuselage.
- the lawn mower further includes: a transmission mechanism, wherein the transmission mechanism is respectively drivingly coupled to the obstacle-blocking drive assembly and the connection assembly.
- the transmission mechanism is one or a combination of at least two of a belt transmission mechanism, a gear transmission mechanism, and a worm gear transmission mechanism.
- connection assembly is directly driven by the obstacle-blocking drive assembly.
- the lawn mower further includes: a terrain recognition sensor, configured to detect whether there is an obstacle in the front terrain or whether a hill climbing is required; and a control module, wherein the control module and the terrain recognition sensor respectively
- the obstacle-blocking drive assembly is communicatively coupled to control the obstacle-obscuring drive assembly based on a front terrain condition detected by the terrain recognition sensor.
- the connecting component is an electric push rod
- the electric push rod is mounted on one of the air body and the cutter device, and the power output end of the electric push rod and the air body and the Another connection in the tooling device.
- the tool device includes: a tool guard coupled to the body and floatable relative to the body; a cutter assembly and a drive tool assembly A mowing cutter drive assembly is mounted, the cutter assembly being mounted within the cutter guard.
- the height of the cutter assembly within the tool shield is adjustable.
- the lower portion of the front side of the tool shroud is connected to the arc of the front edge of the lower table.
- the front side surface of the cutter shroud gradually extends rearward from top to bottom in the up and down direction.
- a lawn mower includes: a body having a longitudinal direction parallel to a forward direction of the lawn mower and a transverse direction parallel to the work plane and perpendicular to the longitudinal direction; two drive wheels Two driving wheels are respectively rotatably disposed on the body and spaced along the lateral direction; a cutter device for cutting grass, the cutter device is disposed on the body and includes a fixed blade and opposite to The moving blade reciprocates along the lateral direction; wherein a ratio of a cutting width of the cutter device along the lateral direction to a width of the lawn mower along the lateral direction is greater than or equal to 0.6.
- the lawn mower according to the embodiment of the present invention can increase the cutting width of the lawn mower and improve the mowing by adopting a cutter device including a fixed blade and a reciprocating moving blade, and satisfying the above conditions in the cutting width of the cutter device in the lateral direction. Machine efficiency. Therefore, the lawn mower according to the embodiment of the present invention has the advantages that the components are arranged compactly and the cutting width is larger.
- the cutter device has a cutting width in the lateral direction of 25 cm or more.
- the cutter device has a cutting width in the lateral direction of 38 cm or more.
- the lawn mower further comprises: at least one support wheel, the support wheel being disposed on the fuselage for adjusting a center of gravity of the lawn mower.
- the support wheel is a universal wheel.
- the longitudinal direction extends in the front-rear direction, and in the front-rear direction, the cutter device is disposed at a front portion of the body, and the support wheel is located behind the drive wheel.
- the longitudinal direction extends in the front-rear direction, and in the front-rear direction, the cutter device is disposed in a middle portion of the body, and the support wheel is located in front of the cutter device.
- the cutter means in the lateral direction, is located between the two drive wheels.
- the lawn mower further comprises: at least one auxiliary wheel, the auxiliary wheel being provided to the cutter device and floatable relative to the fuselage.
- the lawn mower further includes two guiding wheels and two crawler belts, and the two guiding wheels are arranged in the longitudinal direction corresponding to the two driving wheels in one-to-one correspondence, two The tracks are respectively wound around the corresponding drive wheel and the guide wheel along the longitudinal direction.
- the longitudinal direction extends in the front-rear direction, and the cutter device is disposed in front of the two crawler belts in the front-rear direction; or the cutter device is disposed at the rear of the fuselage and located at two Between the tracks.
- the height of the drive wheel is substantially equal to the height of the lawn mower.
- Figure 1 is a schematic view showing the structure of a lawn mower of an embodiment
- FIG. 2 is a schematic structural view of a cutter driving assembly and a cutter assembly of an embodiment
- Figure 3 is a partial view of a lawn mower of an embodiment
- Figure 4 is an exploded view of the tool drive assembly and tool assembly of one embodiment
- Figure 5 is a schematic view showing the structure of a cutter driving assembly and a cutter assembly of an embodiment
- Figure 6 is a schematic structural view of a bottom cover and a tool removal switch of an embodiment
- Figure 7 is a schematic view showing the assembly of the cutter assembly and the cutter drive assembly of one embodiment
- Figure 8 is a structural view of a cutter assembly of an embodiment.
- Figure 9 is a schematic view of a connector of an embodiment
- Figure 10 is a partially exploded perspective view of the cutter assembly of one embodiment
- Figure 11 is a schematic view of a power transmission system of an embodiment
- Figure 12 is a schematic exploded view of Figure 11;
- Figure 13 is a plan view of a portion of the mechanism of Figure 11;
- Figure 14 is a schematic view showing the structure of a lawnmower cutter assembly of an embodiment
- Figure 15 is a side elevational view of the mower cutter assembly of one embodiment
- Figure 16 is a schematic view showing the structure of a lawnmower cutter assembly of an embodiment
- Figure 17 is a schematic view showing the structure of a lawn mower cutter assembly of an embodiment
- Figure 18 is a schematic view showing the structure of an elastic member of a lawn mower cutter assembly of an embodiment
- Figure 19 is a schematic structural view of a cutter assembly of an embodiment
- Figure 20 is a schematic view showing the structure of a lawn mower cutter device of an embodiment
- Figure 21 is an exploded view of the lawnmower cutter apparatus of one embodiment
- Figure 22 is a schematic view showing the assembly of the drive assembly and the blower assembly of one embodiment
- Figure 23 is a plan view showing the structure of a drive assembly and a blower assembly of an embodiment
- Figure 24 is a schematic structural view of a lawn mower of an embodiment
- Figure 25 is a side elevational view of the lawn mower of one embodiment
- Figure 26 is a schematic structural view of a lawn mower of an embodiment
- Figure 27 is a side elevational view of the lawn mower of one embodiment
- Figure 28 is a side elevational view of the lawn mower of one embodiment
- Figure 29 is a side elevational view of the lawn mower of one embodiment
- Figure 30 is a schematic structural view of a lawn mower of an embodiment
- Figure 31 is a schematic structural view of a lawn mower of an embodiment
- Figure 32 is a schematic structural view of a lawn mower of an embodiment
- Figure 33 is a schematic structural view of a lawn mower of an embodiment
- Figure 34 is a schematic structural view of a lawn mower of an embodiment
- Figure 35 is a schematic view showing the structure of a lawn mower of an embodiment.
- connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
- Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
- the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
- the invention provides a lawn mower, as shown in Figures 1 and 2.
- the lawn mower 1 is an intelligent lawn mower.
- the lawn mower 1 includes a body 3, drive wheels 7 mounted on both sides of the body 3, and a cutter drive assembly 20 mounted inside the body 3, including a cutting motor 21, mounted to the body 3 and driven by the cutting motor 21.
- the cutter assembly 10 controls a control module (not shown) that automatically operates and automatically walks the lawn mower 1, and an energy module (not shown) that provides energy.
- a control module not shown
- an energy module not shown
- the lawn mower 1 can also be a manually operated lawn mower, such as a hand mower or the like.
- the cutting motor 21 is fixed to the body 3, and the power is transmitted to the drive shaft by the speed reducer 22.
- the cutter assembly 10 is configured to perform a cutting operation, including a first cutting member and a second cutting member that are relatively reciprocatingly movable.
- the first cutting member and the transmission shaft transmit power through the eccentric transmission mechanism to convert the rotational motion of the transmission shaft into the first cutting member. Reciprocating motion.
- the first cutting member includes a movable knife 12, and the second cutting member includes a fixed knife 11.
- the cutting module of the traditional lawn mower is a plurality of blades mounted on the cutter head. Compared with the cutter-type cutting module, the scissors cutter has a larger effective working area and a higher cutting efficiency per unit time.
- the cutter drive assembly 20 is coupled to the cutter assembly 10 to drive the cutter assembly 10 for mowing.
- the lawn mower 1 further includes a latching mechanism 15 to which the cutter assembly 10 is mounted by the latching mechanism 15, and the cutter assembly 10 is detachable.
- a cutter cover 25 is mounted on the outside of the cutter assembly 10 to prevent injury from being touched by the user during operation of the cutter assembly 10.
- the latching mechanism 15 includes a bottom cover 30 that is mounted to the body 3, and a bottom cover 30 is provided at the bottom of the cutter assembly 10 and detachably coupled to the cutter drive assembly 20 to At least a portion of the cutter assembly 10 is clamped between the bottom cover 30 and the cutter drive assembly 20.
- the latching mechanism 15 further includes a latching member 155 that is disposed on the body 3 or the bottom cover 30, and may be disposed on the bottom cover 30 and the bottom cover 30 to be mated to each other.
- the latching element 155 includes at least two positions: a locked position and an unlocked position, the bottom cover 30 is mounted to the body 3 when the blocking element 155 is in the locked position, and the bottom cover 30 can be removed from the body when the blocking element 155 is in the unlocked position 3 detached.
- the blocking element 155 is a tool removal switch 41 disposed on one of the bottom cover 30 and the tool drive assembly 20, the tool change switch 41 being movable between a locked position and an unlocked position, and configured
- the bottom cover 30 is engaged with the cutter drive assembly 20 when in the locked position, and the bottom cover 30 is disengaged from the cutter drive assembly 20 when in the unlocked position.
- the tool drive assembly 20 is disengaged from the bottom cover 30 by manipulating the tool removal switch 41, thereby facilitating the replacement of the cutter assembly 10, and the operation is simple.
- a lawn mower by detachably connecting the bottom cover 30 with the cutter drive assembly 20, thereby clamping at least a portion of the cutter assembly 10 between the cutter drive assembly 20 and the bottom cover 30, by setting a cutter
- the switch 41 By disassembling the switch 41, it is convenient to control the assembly and disassembly of the bottom cover 30 and the cutter driving assembly 20, thereby facilitating quick replacement of the cutter, and the user experience is good.
- the cutter driving assembly 20 and the bottom cover 30 are detachably snap-connected, and the structure is simple and compact, and the connection is convenient and reliable.
- the tool changeover switch 41 is disposed on the cutter drive assembly 20 and has a first snap portion 412 having a second portion adapted to be engaged with the first snap portion 412.
- the catching portion 32 one of the first engaging portion 412 and the second engaging portion 32 forms a hook, and the other of the first engaging portion 412 and the second engaging portion 32 forms a hook suitable for engaging with the hook. Card slot.
- the tool change switch 41 has a hook
- the bottom cover 30 has a card slot adapted to fit the hook of the tool change switch 41; or, the tool change switch 41 has a card slot, and the bottom cover 30
- the hook has a hook suitable for adapting to the card slot of the tool removal switch 41, and the connection is convenient and reliable.
- the tool dismounting switch 41 further has a downwardly extending switch connecting arm 411.
- the first engaging portion 412 is formed at a lower end of the switch connecting arm 411, thereby extending the first engaging portion 412 toward the bottom cover 30.
- the card is connected to the second latching portion 32 on the bottom cover 30.
- the bottom cover 30 further has an upwardly extending bottom cover connecting arm 31 formed at an upper end of the bottom cover connecting arm 31 to extend the second engaging portion 32 toward the cutter driving assembly 20
- the card is connected to the first latching portion 412 on the tool removal switch 41.
- opposite sides of the tool drive assembly 20 are respectively provided with tool change switches 41, each of which has a vertical direction (eg, The vertically extending switch connecting arm 411 shown in FIG. 7, that is, the switch connecting arm 411 extends toward the bottom cover 30, and the lower end of the switch connecting arm 411 is formed with a first engaging portion 412 (for example, a hook or a card slot).
- a first engaging portion 412 for example, a hook or a card slot
- each bottom cover connecting arm 31 extends vertically, that is, the bottom cover connecting arm 31 faces the cutter
- the driving assembly 20 extends, and the upper end of the bottom cover connecting arm 31 is formed with a second engaging portion 32 (for example, a card slot or a hook).
- the first clamping portion 412 is disengaged from the second engaging portion 32 by the tool changing switch 41, thereby disengaging the cutter driving assembly 20 from the bottom cover 30, thereby facilitating replacement of the cutter assembly. 10.
- the bottom cover 30 is attached to the bottom of the cutter assembly 10, and the cutter drive assembly 20 is mounted on the top of the cutter assembly 10.
- the switch cover 41 is manipulated by the cutter to make the bottom cover 30 and the cutter assembly 10
- the cutter drive assembly 20 is assembled and assembled, and the assembly and disassembly is easy and the operation is convenient.
- the lawn mower further includes an elastic member 42 disposed between the tool removal switch 41 and the cutter drive assembly 20, by providing the elastic member 42 between the cutter removal switch 41 and the cutter drive assembly 20.
- the connection mode of the tool dismounting switch 41 and the tool drive assembly 20 forms a flexible connection, which is beneficial to enhance the user sense when the user controls the tool dismounting switch 41, thereby improving the user experience, and also reducing the noise during operation and improving the mower. quality.
- the tool dismounting switch 41 may form a push button.
- the tool dismounting switch 41 is disposed on the left and right sides of the tool driving assembly 20, and each of the tool dismounting switches 41 is movable in the front-rear direction, and the user removes the tool by pushing the tool. The switch 41 is operated to change.
- the tool change switch 41 is a push button switch
- the spring element 42 is a spring and the axial ends of the spring are respectively abutted against the tool drive assembly 20 and the push button switch.
- the axial direction of the spring extends in the left-right direction, and the push button switch can be pressed in the left-right direction.
- the left limit position of the push button switch on the left side is the locked position, and the right limit of the push button switch on the left side is shown.
- the location is the unlocked position.
- the left extreme position of the push button switch on the right side is the unlocked position
- the right extreme position of the push button switch on the right side is the locked position
- the cutter drive assembly 20 is provided with a support plate 43 having a positioning portion 431 for positioning the elastic member 42, thereby facilitating the positioning and mounting of the elastic member 42 to ensure the tool removal switch 41. Reliability of use.
- the cutter drive assembly 20 includes a cutting motor 21 for driving the cutter assembly 10 for mowing.
- the cutting motor 21 may be a motor, and the cutting motor 21 is coupled to the cutter assembly 10.
- the motor housing 23 is disposed outside the cutting motor 21 to protect the tool drive assembly 20.
- the tool removal switch 41 is disposed on the motor housing 23, and the motor housing 23 has a relief port 231 for avoiding the tool removal switch 41, thereby facilitating the installation and manipulation of the tool removal switch 41.
- the support plate 43 is disposed at the escape opening 231 of the motor cover 23, and the outwardly facing side of the support plate 43 is provided with a positioning portion 431, and the positioning portion 431 can form a positioning convex protruding from the surface of the support plate 43. Start.
- the tool dismounting switch 41 includes a switch body and a switch connecting arm 411.
- the upper end of the switch connecting arm 411 is connected to the lower side of the switch body, and the switch body of the tool dismounting switch 41 is disposed at the escape port 231 and exposed to the motor cover. 23, so as to facilitate the user to operate, the switch connecting arm 411 of the tool change switch 41 is located in the motor cover 23 to be engaged with the bottom cover 30.
- the spring is connected between the button switch and the support plate 43 , and the spring is positioned by the positioning portion 431 on the support plate 43 .
- the structure is simple, the connection reliability is high, the installation is convenient, and the control is convenient.
- the cutter assembly 10 is provided on the front side of the main body of the lawn mower, the cutter assembly 10 is surrounded by the cutter motor cover.
- the cutter removal switch 41 is pressed, the cutter assembly 10 and the cutter motor cover are removed for the wrench. Unscrew the nut above the tool motor housing, remove the tool motor housing, and replace the new tool assembly 10.
- the lawn mower is lifted or turned from the rear, and then the tool removal switch 41 is manually pressed, the cutter assembly 10 is removed, and the new cutter assembly 10 is replaced.
- the lawn mower 1 includes a cutter assembly 10, a cutter drive assembly 20, a bottom cover 30, and a latching member 155.
- the latching member 155 includes two cutter change switches 41 and two elastic members 42. And two support plates 43.
- the latching mechanism 15 includes a threaded connector 16, which may be in the form of a screw, bolt, etc., to which the cutter assembly 10 can be directly secured by the threaded connector 16.
- the disassembly and assembly of the cutter assembly 10 can be achieved by the work of matching the threaded connectors 16 with each other.
- the cutter driving assembly 20 is disposed at the top of the cutter assembly 10 and includes a cutting motor 21 (for example, a motor) and a speed reducer 22.
- the output shaft of the cutting motor 21 is coupled to the input shaft of the speed reducer 22, and the output shaft of the speed reducer 22 It is coupled to the engagement transmission member 24 on the cutter assembly 10 to drive a form of motion of the movable knife 12 reciprocating relative to the fixed knife 11.
- the motor cover 23 is disposed on the outer side of the cutting motor 21 and the speed reducer 22 and has two oppositely disposed relief ports 231. Each of the relief ports 231 is provided with a downwardly extending support plate 43 and the support plate 43 faces outward. A positioning portion 431 is provided on the side.
- the cutter drive assembly 20 includes a rotary transmission member 26.
- the rotary transmission member 26 includes a plurality of tapered projections, and correspondingly, the cutter assembly 10 includes an engagement transmission member 24 that includes a recess that mates with the tapered projection such that the rotary transmission member 26 can The engagement transmission elements 24 are mated to each other.
- the rotary transmission member 26 mates with the engagement transmission member 24 such that the cutter drive assembly can drive the movable cutter 12.
- the rotary transmission member 26 can include a specially shaped projection, such as a hexagonal projection, and the engagement transmission member 24 can include a corresponding hexagonal recess.
- the structural design of the rotating transmission element 26 and the engagement transmission element 24 allows the user to more easily mount the tool assembly 10 to the correct position.
- a bottom cover 30 is provided at the bottom of the cutter assembly 10 and the bottom cover 30 is detachably snap-connected to the cutter drive assembly 20.
- the bottom cover 30 has two oppositely disposed bottom cover connecting arms 31, and the upper end of each of the bottom cover connecting arms 31 is formed with a second engaging portion 32.
- Two tool dismounting switches 41 are respectively disposed at the two escaping ports 231 of the motor housing 23, and an elastic member 42 is disposed between each of the tool dismounting switches 41 and the support plate 43.
- Each of the tool dismounting switches 41 has A switch connecting arm 411 extending downward is formed, and a lower end of the switch connecting arm 411 is formed with a first engaging portion 412 adapted to be engaged with the first engaging portion 412.
- the tool dismounting switch 41 When the tool needs to be replaced, the tool dismounting switch 41 is controlled, and the tool dismounting switch 41 is pressed, so that the first engaging portion 412 and the second engaging portion 32 are disengaged, that is, the tool dismounting switch 41 and the bottom cover. 30 is separated, and the cutter assembly 10 is separated from the bottom cover 30, the cutter assembly 10 is removed, and the new cutter assembly 10 is replaced.
- the positioning pin 132 and the connecting member 70 of the cutter assembly 10 can also be removed, and the fixed cutter can be replaced separately.
- the blade 112 or the movable blade 122 realizes quick tool changeover.
- the bottom cover 30 is attached to the bottom of the cutter assembly 10, and the cutter drive assembly 20 is mounted on the top of the cutter assembly 10.
- the switch cover 41 is manipulated by the cutter to make the bottom cover 30 and the cutter assembly 10
- the cutter drive assembly 20 is assembled and integrated, and the operation is convenient.
- the cutter assembly 10 includes a fixed cutter 11 and a movable cutter 12 which are reciprocally movable with respect to the fixed cutter 11, and the fixed cutter 11 and the movable cutter 12 are movably coupled by a joint member 70.
- the fixed knife 11 includes a fixed knife holder 111 and a fixed knife blade 112, and the movable knife 12 is a unitary piece.
- the fixed knife 11 includes a fixed knife holder 111 and a fixed knife blade 112.
- the fixed knife holder 111 and the fixed knife blade 112 are respectively provided with positioning holes 131 through which the fixed knife holder 111 and the fixed knife blade 112 pass.
- the positioning pin 132 that is disposed in the positioning hole 131 is connected.
- the movable blade 12 includes a movable blade holder 121 and a movable blade 122, and the movable blade holder 121 and the movable blade 122 are connected by a connecting member 70.
- the connector 70 is a fixed connector. As shown in FIG. 7, the connecting member 70 fixedly connects the movable tool holder 121 and the movable knife blade 122, and the tool driving assembly 20 drives the movable knife holder 122 by driving the movable knife holder 121, so that the moving blade 122 moves.
- the knife holder 121 is synchronized and reciprocates relative to the fixed knife 11.
- the connector 70 can be in the form of a bolt, a screw, or the like.
- one side of the connecting member 70 is fixed to the movable blade holder 121, and the other side of the connecting member 70 includes a positioning key 141, and the positioning key 141 is connected to the moving blade 122.
- the position of the movable blade 122 and the movable blade holder 121 is relatively fixed.
- the connector 70 is a movable connector, as shown in FIGS. 11-13, the connector 70 includes a first transmission member 200 and a second transmission member 300, the first transmission member 200 having at least one first linkage 210, the second transmission member 300 is driven by the cutter driving assembly 20 to drive the movement of the at least one first connecting arm 210, thereby driving at least the moving knife 12 directly or indirectly connected to the first connecting arm 210 to reciprocate relative to the fixed knife 11. Exercise to perform cutting work.
- the first transmission member 200 has two first connecting arms 210, and each of the first connecting arms 210 may include opposite first and second ends. Since the number of the first connecting arms 210 is two, the moving knife 12, the connecting plate 600 and the two first connecting arms 210 can form a four-bar linkage mechanism. The structure and function of the connecting plate 600 are the same as those of the movable tool holder 121.
- first end is rotatably coupled directly or indirectly to the movable knife 12 in the cutter assembly 10
- second end is rotatably coupled directly or indirectly to the fixed knife 11 in the cutter assembly 10.
- the movable blade 12 is directly rotatably coupled to the first end portion, and the fixed blade 11 is rotatably coupled to the second end portion via the connecting plate 600.
- the two ends of the first connecting arm 210 can be rotatably connected to the movable blade 12 and the connecting plate 600 through the first connecting unit 510 and the second connecting unit 520, respectively.
- the at least one first connecting arm 210 is simultaneously rotatably connected with the movable knife 12 and the fixed knife 11 in the cutter assembly 10, and the contact portion is rolling friction, which avoids sliding friction caused by using the conventional guiding assembly, and the rolling friction force is smaller than the sliding friction. Force, which reduces contact wear and transmission losses, reduces noise and extends the life of the entire unit.
- a first rotating sleeve 530 may be disposed between the first connecting unit 510 and the first end portion and the movable blade 12, and the second connecting unit 520 is disposed between the second connecting portion 520 and the second end portion and the connecting plate 600.
- the first rotating sleeve 530 and the second rotating sleeve 540 are respectively sleeved on the first connecting unit 510 and the second connecting unit 520.
- the first rotating sleeve 530 is respectively associated with the first connecting unit 510 and the moving knife 12
- the second sleeve 540 is in contact with the second end and the web 600, respectively.
- the first swivel sleeve 530 and/or the second swivel sleeve 540 can be copper sleeves or bearings.
- the rolling friction of the rotating joint can be further reduced, and wear and transmission loss can be reduced.
- the first connecting unit 510 and the second connecting unit 520 respectively correspond to a first pin shaft and a second pin shaft
- the two ends of the first connecting arm 210 respectively pass the first pin shaft and the second pin shaft respectively It is hinged with the movable knife 12 and the connecting plate 600.
- the first end portion and the movable knife 12 are respectively provided with a first through hole and a second through hole through which one end of the first pin shaft passes
- the second end portion and the connecting plate 600 are respectively provided with a first through hole a third through hole and a fourth through hole through which one end of the two pins passes.
- first pin shaft passes through the first through hole and the second through hole
- second pin shaft passes through the third through hole and the fourth through hole, so that both ends of the first connecting arm 210 respectively move with the movable knife 12 and the connecting plate 600 is hinged.
- axial fasteners are installed at the ends of the free ends of the first pin shaft and the second pin shaft, and the fasteners may be commonly used. Fastening nut or other fastening element.
- the first connecting arm 210 is a straight strip shape, and the first end portion and the second end portion are respectively two end portions of the linear first connecting arm 210.
- the link mechanism is a parallel four-bar linkage.
- the line connecting the first end of the two first arms 210 to the movable blade 12 is defined as L1
- the second end of the two first arms 210 is fixed to the fixed blade 11.
- the connection at the direct or indirect connection is L2. It is set that L1 and L2 are parallel to each other and L1 coincides with the reciprocating direction of the tool. Therefore, the link mechanism constructed at this time is a parallel four-bar linkage mechanism.
- the movable knife 12 can be moved relative to the fixed blade 11 in the direction of the theoretical reciprocating motion of the tool.
- both the movable blade 12 and the fixed blade 11 are elongated, the movable blade 12 can perform a reciprocating linear motion in the longitudinal direction of the tool with respect to the fixed blade 11.
- the second transmission member 300 includes a crank 310 and a rocker 320 that is driven by the cutter drive assembly 20 to drive the movement of the at least one first linkage arm 210, thereby driving the first At least the movable blade 12, which is directly or indirectly rotatably coupled to the arm 210, reciprocates relative to the fixed blade 11 to perform a cutting operation.
- the second transmission member 300 may be coupled to an intermediate portion of the at least one first link arm 210.
- the crank 310 is coupled to the cutter drive assembly 20, which is driven by the cutter drive assembly 20 to transmit the drive force.
- the crank 310 is an eccentric.
- the crank 310 can be an eccentric block or an eccentric rod.
- the rocker 320 is coupled to the at least one first leg 210 at one end and to the crank 310 at the other end.
- the rocker 320 is driven by the crank 310 to drive the first arm 210 connected to the rocker 320 to move.
- the rocker 320 is coupled to a first leg 210.
- the rocker 320 can be coupled to the intermediate portion of the first leg 210 and the junction can be located between the first end and the second end. This connection can be a secure connection. As such, the movement of the first transmission member 200 is more convenient.
- a swivel can be provided at the hinge to reduce the amount of wear of the transmission member at the hinge.
- the second transmission member 300 may further include an intermediate rod.
- the two ends of the intermediate rod are respectively connected to the rocker 320 and the first connecting arm 210.
- the rocking rod 320 can pass through the intermediate rod and at least two first The connecting arms 210 are connected to drive the plurality of first connecting arms 210 to move.
- crank 310 when the crank 310 is an eccentric, when the eccentric rotates one revolution, the movable knife 12 in the cutter assembly 10 is just driven to reciprocate for one cycle.
- the cutter drive assembly 20 includes a cutting motor 21 and a speed reducer 22 coupled to the cutting motor 21.
- the speed reducer 22 is coupled to the crank 310 in the second transmission member 300, which transmits the driving force of the cutting motor 21 to the crank 310 in the second transmission member 300.
- the cutting motor 21 can be a motor of the type commonly used in the art
- the speed reducer 22 can be a gear reduction box, which can include a mounting bracket, a box disposed on the mounting bracket, a first input shaft and a first output disposed on the housing A shaft and a gear set disposed inside the casing.
- the mounting bracket can be mounted on the connecting plate 600.
- the rocker 320 is disposed between the mounting bracket and the connecting plate 600 and passes between the mounting brackets.
- the mounting bracket is provided with a rocker 320 that allows the rocker 320 to reciprocate.
- the oscillating space ensures normal cutting work and makes the structure of the entire device more compact.
- the mounting bracket can be mounted in other suitable locations.
- the first input shaft and the first output shaft are respectively connected to the output shaft of the motor and the crank 310.
- the output shaft of the motor rotates circumferentially and is driven by the gear of the reducer 22 to drive the first output shaft to rotate, thereby driving the crank 310 to rotate.
- the rotation of the crank 310 is further converted into a reciprocating swing of the rocker 320 by the second transmission member 300, which in turn drives the movement of the first linkage arm 210 connected to the rocker 320, and finally drives the cutter assembly 10 connected to the first linkage arm 210.
- the cutters are reciprocated to achieve the cutting work.
- the number of the first transmission member 200 and the second transmission member 300 is the same and both are one. In other embodiments, the number of the first transmission member 200 and the second transmission member 300 may be different, or may be other multiples. As such, when the first transmission member 200 and the second transmission member 300 are of other numbers, the first transmission member 200 and the second transmission member 300 can be separately controlled for power transmission; in addition, by adding the intermediate member. Make a transition connection for power transfer.
- both the movable blade 12 and the stationary blade 11 can be movable blades, and both can be driven and relatively double-reciprocated, and the directions of movement of the two can be the same or opposite.
- the moving speed of the movable blade 12 and the fixed blade 11 is not limited.
- the movable blade 12 and the fixed blade 11 should have different moving speeds so that the movable blade 12 and the fixed blade 11 have a relative reciprocating motion.
- the blade shapes of the movable blade 12 and the fixed blade 11 are preferably the same, and both may be a generally adopted straight shape. In other embodiments, the two may also be arcuate or wavy lines or other identical or different blade shapes that meet the cutting conditions.
- the powertrain can drive one of the tools to make a reciprocating circular motion with respect to the other tool.
- the movable blade 12 and the fixed blade 11 may have the same mass and thickness.
- the blade quality and thickness of the moving blade are both less than the blade quality and thickness of the stationary blade. This further reduces the friction between the movable knife and the fixed knife, and improves the overall stability of the cutter assembly 10 and reduces noise.
- a groove is provided on a contact surface of at least one of the movable blade 12 and the fixed blade 11.
- the groove may be a plurality of hollow grooves or a blind groove. This reduces the contact area of the first blade and the second blade, thereby reducing the sliding friction before the first blade and the second blade.
- This groove can be provided on the fixed knife 11 and/or the fixed knife 11. In the present embodiment, the groove is provided on the fixed blade 11.
- the motor is connected to the speed reducer 22.
- the first output shaft of the speed reducer 22 is connected to the eccentric wheel, the eccentric wheel and the rocker 320 are connected by bearings, and the two rocker arms, the connecting plate 600 and the movable knife 12 are connected.
- the parallel four-bar linkage mechanism is formed, and the rocker 320 is connected to one of the first connecting arms 210.
- the fixed knife 11 is located below the movable knife 12 and is connected to the connecting plate 600 by fasteners such as bolts.
- the rocker 320 drives the first link arm 210, so that the movable knife 12 in the four-bar linkage mechanism composed of the first link arm 210 and the like reciprocates relative to the fixed blade 11 to realize cutting.
- Figure 13 shows the initial position of the movable blade 12.
- the counterclockwise movement of the eccentric wheel drives the rocker 320 to move, the rocker 320 pushes the four-bar linkage mechanism to the left, and the movable knife 12 moves to the left.
- the movable knife 12 moves to the leftmost position. position.
- the counterclockwise movement of the eccentric wheel drives the rocker 320 to move, the rocker 320 pushes the four-bar linkage mechanism to the right, and the movable knife 12 moves to the right, and the movable knife 12 returns to the initial position.
- the counterclockwise movement of the eccentric wheel moves the rocker 320, the rocker 320 pushes the four-bar linkage to the right, and the movable knife 12 moves to the right, and the movable knife 12 moves to the rightmost position.
- the counter-clockwise movement of the eccentric wheel drives the rocker 320 to move, the rocker 320 pushes the four-bar linkage to the left, and the movable knife 12 moves to the left, at which time the movable knife 12 returns to the initial position.
- the above eccentric rotates one revolution to make the movable knife reciprocate one cycle from left to right, realizing the cutting function.
- one of the first end and the movable blade 12 is provided with a first post (not shown), the other of which is provided with a through hole enabling the first post to be inserted.
- One of the second end and the connecting plate 600 is provided with a second post (not shown), and the other is provided with a through hole through which the second post can be inserted.
- the first column and the second column can be inserted into the corresponding through holes to realize the rotational connection between the first link arm 210 and the movable blade 12 and the connecting plate 600. This ensures normal cutting work and makes the structure of the entire device more compact.
- the mounting bracket can be mounted in other suitable locations.
- a rotating sleeve may be provided on the outer wall of the first column in contact with the movable blade 12 and the fixed blade 11, and the rotating sleeve may be a copper sleeve or a bearing.
- the rolling friction between the first link arm 210 and the cutter assembly 10 can be reduced by the swivel sleeve, further reducing noise and providing a service life.
- the first connecting arm 210 is linear.
- the first connecting arm 210 may be a polygonal line or an arc or other suitable shape.
- both ends of the first connecting arm 210 can be connected with two tools in the cutter assembly 10, and at this time, the two first connecting arms 210 and the moving knife 12 and the connecting plate 600 are connected.
- the fixed knife 11 constitutes a four-bar linkage mechanism.
- the number of the first connecting arms 210 is one.
- the first link arm 210 is directly or indirectly connected to the movable knife 12 and the fixed knife 11 on the cutter assembly 10.
- the number of the first links 210 is three or more. At this time, the components connected to the first connecting arm 210 can be correspondingly increased or adjusted.
- the tool assembly 10 further comprises at least a third tool, which can be arranged in a stack with the first and second tools.
- Cutting efficiency can be improved by the first transmission member 200 being coupled to a plurality of tools in the cutter assembly 10 to control the relative reciprocating motion of at least three of the cutter assemblies 10.
- first end portion and the second end portion are not limited to being disposed at both end positions of the first link arm 210. Both may be disposed at an intermediate position of the first link arm 210, and the connection of the first link arm 210 to the cutter assembly 10 at this time is not limited to the two end positions of the first link arm 210.
- the rocker 320 is connected to an intermediate position of the first connecting arm 210, and the intermediate position may be a position disposed between the first end and the second end, or may be disposed away from the first end or the second The position of the end.
- the powertrain system further includes a support frame (not shown) that provides support for the tool drive assembly 20 that is disposed on the tool assembly 10.
- the tool drive assembly 20 can now include only a motor on which the motor can be placed.
- the support frame is composed of a plurality of support rods and a support platform, and the support rods are disposed on the connection plate 600 for supporting the cutter drive assembly 20.
- a matching rocker 320 swing gap is provided between the plurality of support rods.
- both ends of the first connecting arm 210 can be directly connected to the movable blade 12 and the fixed blade 11.
- both ends of the first link arm 210 are rotatably coupled to the movable blade 12 and the fixed blade 11 respectively through a third connecting unit (not shown) and a fourth connecting unit (not shown).
- a third swivel sleeve is disposed between the third connecting unit and the first end portion and the movable knife 12; and a fourth rotating sleeve is disposed between the fourth connecting unit and the second end portion and the fixed knife 11.
- the third rotating sleeve and the fourth rotating sleeve may be respectively sleeved on the third connecting unit and the fourth connecting unit, and the third rotating sleeve is respectively in contact with the first connecting unit and the first cutting member,
- the four swivel sleeves are in contact with the second end portion and the second cutting member, respectively.
- the first swivel sleeve 530 and/or the second swivel sleeve 540 can be copper sleeves or bearings.
- a transition piece may be disposed between the movable blade 12 and the first link arm 210, and the connection between the movable blade 12 and the first link arm 210 is realized by the transition piece.
- the third connecting unit and the fourth connecting unit may be a pin structure.
- the first end portion and the movable blade 12 and the second end portion and the fixed blade 11 are respectively provided with through holes through which one end of the corresponding pin shaft passes. At this time, each of the pins passes through the respective through holes, so that both ends of the first link arm 210 are respectively hinged with the movable blade 12 and the fixed blade 11.
- an axial fastener is mounted at the end of the free end of the pin, which may be a common fastening nut or other tight Solid components.
- the third connecting unit and the fourth connecting unit may be structures similar to the first column and the second column described above, and details are not described herein again.
- the movable blade 12, the fixed blade 11 and the two first connecting arms 210 constitute a link mechanism.
- the rocker 320 in the second transmission member 300 can be coupled to the intermediate portion of the first linkage arm 210.
- the specific content is similar to that of Embodiment 1, and details are not described herein again.
- the cutter assembly 10 includes a fixed knife 11, a movable knife 12, and a connector 70.
- the fixed blade 11 extends in the lateral direction (the left and right direction as shown in Fig. 14).
- the movable blade 12 is disposed above the fixed blade 11 and reciprocally movable in the lateral direction with respect to the fixed blade 11.
- the connecting members 70 are respectively coupled to the fixed blade 11 and the movable blade 12 such that at least a part of the blade of the movable blade 12 presses the blade of the fixed blade 11.
- the blade edge and the fixed blade 11 of the movable blade 12 are enlarged.
- the friction between the blades achieves the self-grinding effect, which makes the blade sharp and reduces the number of times the tool is removed, which is beneficial to improve cutting efficiency, reduce the cost of use, and better user experience.
- the connector 70 includes a locating member 71 and at least one pretensioning member.
- the positioning member 71 extends in the vertical direction (vertical direction as shown in FIG. 14) and is mounted to the fixed blade 11, and the movable blade 12 has a sliding groove 121 extending in the lateral direction, and the positioning member 71 is adapted to pass through the sliding groove 121.
- the positioning member 71 is stationary and reciprocates relative to the movable blade 12 along the longitudinal direction of the chute 121.
- At least one pretensioning member is coupled to the stationary blade 11 such that at least a portion of the cutting edge of the movable blade 12 presses against the cutting edge of the fixed blade 11. In other examples, at least one pretensioning member is coupled to the movable knife 12 such that at least a portion of the cutting edge of the movable blade 12 presses against the cutting edge of the fixed blade 11.
- the pre-tightening members may also be respectively connected to the fixed knife 11 and the movable knife 12, so that the cutting edge of the movable knife 12 and the cutting edge of the fixed knife 11 are pressed, so that when the movable knife 12 moves relative to the fixed knife 11, the movable knife 12 is moved.
- the friction between the blade and the blade of the fixed blade 11 is increased to achieve a self-grinding effect.
- At least one pretensioning member is coupled between the fixed knife 11 and the movable knife 12.
- At least one pretensioning member is a support table 721 which is interposed between the fixed blade 11 and the movable blade 12, and in the direction of the blade edge of the driven blade 12 ( As shown in FIGS. 14 and 15 , the support table 721 is disposed away from the blade of the movable blade 12 such that the support table 721 raises the blade back of the movable blade 12 such that the blade of the movable blade 12 presses the blade 11
- the blade increases the friction between the movable blade 12 and the fixed blade 11 to achieve the effect of self-grinding.
- the support table 721 may be disposed on a side surface of the fixed blade 11 facing the movable blade 12, for example, the support table 721 is integrally formed on the upper surface of the fixed blade 11.
- the support table 721 may be provided on one side surface of the movable blade 12 facing the fixed blade 11, and for example, the support base 721 is integrally formed on the lower surface of the movable blade 12.
- the support table 721 can also be formed on the side wall of the positioning member 71.
- the top end of the positioning member 71 has a chuck 711 having a circular cross section, and the middle portion of the positioning member 71 forms a columnar shape extending in the vertical direction, and the middle side wall of the positioning member 71 is respectively provided against the fixed knife 11
- the upper surface and the support table 721 on the lower surface of the movable blade 12 are such that the blade back of the movable blade 12 is too high, so that the blade of the movable blade 12 presses the blade of the fixed blade 11.
- the movable blade and the fixed blade 112 are usually made of a metal material, such as a magnetic metal material. Therefore, in the example shown in Fig. 16, at least one of the pretensioning members is a magnet 722, the magnet 722 is interposed between the fixed blade 11 and the movable blade 12, and the magnet 722 is adjacent to the blade of the movable blade 12 and/or the fixed blade 11.
- the fixed blade 11 and the movable blade 12 are sucked by the adsorption force between the magnet 722 and the fixed blade 11 and the movable blade 12, and the blade of the movable blade 12 is sucked and pressed against the blade of the fixed blade 11, further The friction between the movable knife 12 and the fixed knife 11 is increased, and the effect of the self-grinding knife is achieved.
- one end of the positioning member 71 protrudes from the sliding slot 121 and has a chuck 711 having an outer dimension larger than the width dimension of the sliding slot 121, and at least one pretensioning member is formed to be coupled to the chuck 711 and the movable knife.
- the elastic member 723 forms a spring, and the spring is sleeved on the positioning member 71, and the upper end of the spring stops against the lower surface of the chuck 711, and the lower end of the spring stops against the upper surface of the movable blade 12.
- the structure is simple, and the pre-tightening and relaxing effects are good.
- the elastic member 723 may also be an elastic washer, an elastic diaphragm, or the like, which is not limited in the present invention.
- the connector 70 includes a torsion spring 724 with at least a portion of the torsion spring 724 stationary and at least another portion of the torsion spring 724 moving with the movable blade 12.
- a torsion spring 724 with at least a portion of the torsion spring 724 stationary and at least another portion of the torsion spring 724 moving with the movable blade 12.
- the torsion spring 724 is fixed to the fixed blade 11 and away from the cutting edge of the fixed blade 11, and the two ends of the torsion spring 724 are respectively connected with the movable blade 12, thereby pressing the movable blade 12 downward, thereby increasing the movable blade 12 at The friction between the blade of the movable blade 12 and the blade of the fixed blade 11 during the movement.
- the position of the torsion spring 724 is not limited to the fixed blade 11, and the torsion spring 724 can also be mounted on other components of the movable part such as the movable blade 12, as long as the torsion spring 724 can be brought into position to press the fixed knife 12
- the technical solutions of the effects of 11 are all within the scope of protection of the present invention.
- the fixed blade 11 is provided with a limiting platen 724, and the torsion spring 724 is fixed to the fixed blade 11 by a limiting platen 113.
- the limiting platen 113 includes a longitudinal plate and a transverse plate. The lower end of the longitudinal plate is connected with the fixed knife 11. One side of the horizontal plate is connected with the upper end of the longitudinal plate, so that the limiting slot is defined between the limiting pressing plate 113 and the fixed knife 11. At least a portion of the torsion spring 724 is mounted in the limiting slot to prevent the torsion spring 724 from bounce upward, thereby pressing the fixed blade 12 downward against the fixed blade 11 by both ends of the torsion spring 724.
- the fixed knife 11 includes a fixed knife holder 111 and a fixed knife blade 112 mounted to the fixed knife holder 111, and the limit pressing plate 113 is integrally formed with the fixed knife holder 111.
- the joining process can be simplified, and the forming process is convenient, which is advantageous for improving the production efficiency, and is facilitated by separately forming and assembling the fixed knife holder 111 and the fixed blade 112.
- the fixed blade 112 is replaced to reduce the cost.
- the structure of the movable blade 12 can also be the same as that of the fixed blade 11, and will not be described again here.
- the specific features, structures, materials or characteristics described above may be combined in any suitable manner in any one or more embodiments or examples.
- at least two of the support table 721, the magnet 722, the elastic member 723, and the torsion spring 724 are combined and mounted to the fixed blade 11 and/or the movable blade 12, so that the movable blade 12 can better pre-tension the fixed blade 11. , thereby improving cutting efficiency, reducing the number of times the tool is removed, and reducing the cost of use.
- the mower cutter assembly 10 includes a fixed knife 11, a movable knife 12, and two positioning members 71.
- the fixed blade 11 extends in the lateral direction (the horizontal direction shown in FIG. 14), and the movable blade 12 has two spaced-apart chutes 121, each of which extends in the lateral direction, and the movable blade 12 is disposed above the fixed blade 11.
- the top of the positioning member 71 has a chuck 711 having a cross-sectional area larger than the middle cross-sectional area, and the two positioning members 71 respectively pass through the corresponding sliding slots 121, thereby positioning the movable knife 12 on the fixed knife 11, and the moving knife 12 is opposite to the fixed knife 12
- the positioning member 71 is always located in the sliding groove 121, and the sliding groove 121 can serve as a guide.
- each positioning member 31 of the positioning member 71 is provided with a plurality of support bases 321 supported by the circumferential direction.
- the upper end of the support base 721 supports the lower surface of the movable table 12 and the support table.
- the lower end of the 321 support table 721 is abutted against the upper surface of the fixed blade 11, so that the blade back of the movable blade 12 is raised, so that the blade back of the movable blade 12 is spaced from the blade back of the fixed blade 11, and the blade edge of the movable blade 12 is pressed tightly.
- the blade of the blade 11, that is, the movable blade 12 is bent and deformed to pre-tighten the fixed blade 11, and the friction between the blade of the fixed blade 11 and the blade of the movable blade 12 when the movable blade 12 is moved is increased. Self-grinding effect, no need to change tools frequently.
- the mower cutter assembly 10 includes a fixed knife 11, a movable knife 12, two positioning members 71, and a plurality of magnets 722.
- the fixed blade 11 extends in the lateral direction (the horizontal direction shown in FIG. 14), and the movable blade 12 has two spaced-apart chutes 121, each of which extends in the lateral direction, and the movable blade 12 is disposed above the fixed blade 11.
- the top of the positioning member 71 has a chuck 711 having a cross-sectional area larger than the middle cross-sectional area, and the two positioning members 71 respectively pass through the corresponding sliding slots 121, thereby positioning the movable knife 12 on the fixed knife 11, and the moving knife 12 is opposite to the fixed knife 12
- the positioning member 71 is always located in the sliding groove 121, and the sliding groove 121 can serve as a guide.
- a plurality of magnets 722 are disposed between the fixed blade 11 and the movable blade 12, and each of the magnets 722 is disposed adjacent to the blade of the movable blade 12, so that the movable blade 12 and the fixed blade 11 are attracted, even if the blade of the movable blade 12 is pressed tightly.
- the blade of the blade 11 increases the friction between the blade of the fixed blade 11 and the blade of the movable blade 12 during the movement of the movable blade 12, thereby realizing the self-grinding effect without requiring frequent tool change.
- the mower cutter assembly 10 includes a fixed knife 11, a movable knife 12, two positioning members 71, and two elastic members 723.
- the fixed blade 11 extends in the lateral direction (the horizontal direction shown in FIG. 14), and the movable blade 12 has two spaced-apart chutes 121, each of which extends in the lateral direction, and the movable blade 12 is disposed above the fixed blade 11.
- the top of the positioning member 71 has a chuck 711 having a cross-sectional area larger than the middle cross-sectional area, and the two positioning members 71 respectively pass through the corresponding sliding slots 121, thereby positioning the movable knife 12 on the fixed knife 11, and the moving knife 12 is opposite to the fixed knife 12
- the positioning member 71 is always located in the sliding groove 121, and the sliding groove 121 can serve as a guide.
- An elastic member 723 is disposed between the chuck 711 of each positioning member 71 and the upper surface of the movable blade 12, thereby achieving the effect of pre-tightening and relaxing, and increasing the blade edge and movement of the fixed blade 12 when the movable blade 12 is moving. The friction between the blades of the knife 12 achieves a self-grinding effect without the need to frequently change the tool.
- the mower cutter assembly 10 includes a fixed knife 11, a movable knife 12, two positioning members 71, and a torsion spring 724.
- the fixed blade 11 extends in the lateral direction (the horizontal direction shown in FIG. 14), and the fixed blade 11 is provided with a limiting platen 113, and the limiting platen 113 is disposed away from the cutting edge of the fixed blade 11.
- the movable knife 12 has two spaced-apart chutes 121, each of which extends in the lateral direction, and the movable knife 12 is disposed above the fixed knife 11.
- the top of the positioning member 71 has a chuck 711 having a cross-sectional area larger than the middle cross-sectional area, and the two positioning members 71 respectively pass through the corresponding sliding slots 121, thereby positioning the movable knife 12 on the fixed knife 11, and the moving knife 12 is opposite to the fixed knife 12
- the positioning member 71 is always located in the sliding groove 121, and the sliding groove 121 can serve as a guide.
- the torsion spring 724 is fixed to the fixed blade 11 by the limiting platen 113, and both ends of the torsion spring 724 are connected with the movable blade 12, so that the movable blade 12 is pressed down against the fixed blade 11 by the two ends of the torsion spring 724.
- the friction between the blade of the fixed blade 11 and the blade of the movable blade 12 achieves a self-grinding effect, and the tool does not need to be frequently replaced.
- the movable cutter 12 can press the fixed cutter 11 so that at least a part of the cutting edge of the movable cutter 12 and the cutting edge of the fixed cutter 11 rub against each other, and the self-grinding effect is achieved without human intervention. Keep the sharpness of the blade, no need to change the tool frequently, and the cost is low.
- the lawn mower cutter assembly 10 according to the embodiment of the present invention has the above-described technical effects
- the lawn mower according to the embodiment of the present invention also has the above-described technical effects, that is, the lawn mower has high cutting efficiency and does not require frequent tool change. The cost of use is low and the user experience is good.
- the tool guard 25, the cutter assembly 10, and the cutter drive assembly 20 comprise a cutter assembly 2, which in the present embodiment further includes a blower assembly 50.
- the cutter assembly 10 is disposed within the tool shroud 25 and spaced from the inner wall surface of the tool shroud 25.
- the cutter drive assembly 20 is coupled to the cutter assembly 10 for driving the cutter assembly 10 for mowing.
- the blower assembly 50 has a duct 511, an air inlet (not shown) that communicates with the air duct 511, and an air outlet 512 that faces a gap between the cutter assembly 10 and/or the cutter assembly 10 and the tool guard 25.
- the gap between the cutter assembly 10 and/or the cutter assembly 10 and the cutter guard 25 can be blown during the operation of the lawn mower to avoid
- the grass clippings block the gap between the cutter and the tool guard 25, which causes the problem of inability to enter the grass, which is beneficial to improve the cutting efficiency of the lawn mower and has a better user experience.
- the blower assembly 50 has a separate drive that is independent of the cutter drive assembly 20 to create an air flow within the air passage 511 to blow away the cutter assembly 10, the tool shield 25, and the cutter. Grass clippings in the gap between the assembly 10 and the tool guard 25.
- the blower assembly 50 is driven by the cutter drive assembly 20 to form an air flow. That is to say, when the cutter drive assembly 20 drives the cutter assembly 10 to mowing, the blower assembly 50 can be synchronously driven to form an air flow, which is advantageous in reducing the number of components of the lawn mower and thereby reducing the cost.
- the air blowing assembly 50 includes: a wind guiding member 51 and a rotatable fan 52.
- the air guiding member 51 has a duct 511 and an air outlet 512, and the fan 52 and the air guiding member 51. Connected, and while the fan 52 is rotating, it is used to supply air into the air duct 511 to form an air flow.
- the fan 52 can be coupled to the cutter drive assembly 20 to rotate by the drive of the cutter drive assembly 20.
- the fan 52 may be disposed in the air guiding member 51, that is, the fan 52 is disposed in the air duct 511, so that outside air is introduced into the air duct 511 through the air inlet, and a high-speed airflow is formed by the high-speed rotating fan 52.
- the air guiding member 51 is discharged through the air outlet 512 and blown to the gap between the cutter assembly 10 and/or the cutter assembly 10 and the tool guard 25.
- the fan 52 may also be disposed outside the air guiding member 51, and the high-speed airflow generated by the fan 52 is guided to the cutter assembly 10 through the air guiding member 51.
- the centrifugal fan has good ventilation effect, it is particularly suitable for use in the field of pipeline exhaust or air supply. Therefore, in some examples, the fan 52 may be a centrifugal fan 52, so that the airflow drawn by the centrifugal fan 52 can be easily passed through the air guiding member. 51 leads to the cutter assembly 10.
- At least a portion of the air guiding member 51 forms a curved tube that is curved toward the cutter assembly 10. Specifically, one end of the air guiding member 51 is communicated to the fan 52, and the other end of the air guiding member 51 extends above the cutter assembly 10, thereby guiding the high-speed airflow generated by the fan 52 to the cutter assembly 10.
- the air guiding member 51 is formed in a volute shape to form a volute fan with the fan 52 and the tool drive assembly 20 to direct the airflow generated by the volute fan to the tool assembly 10.
- the tool drive assembly 20 is a motor and the motor includes a motor housing and a motor body, the fan 52 is coupled to a motor shaft of the motor body, and the air guide 51 forms a portion of the motor housing.
- the cutter assembly 10 When the cutter driving assembly 20 is in operation, the cutter assembly 10 can be driven to perform mowing, and the motor shaft of the cutter driving assembly 20 drives the fan 52 to rotate, and the fan 52 rotating at a high speed can accelerate the air flow around the motor body, thereby The heat dissipation is performed to extend the service life of the motor, and the generated high-speed airflow can be directed to the gap between the cutter assembly 10 and the cutter assembly 10 and the tool guard 25, thereby providing a gap between the cutter assembly 10 and the tool guard 25.
- the grass clippings, the tool guard 25 and the grass clippings on the cutter assembly 10 are blown away in time to avoid the problem that the grass can not be immersed due to the gap between the cutter and the tool guard 25, which is beneficial to the lawn mower. Cutting efficiency.
- a lawn mower according to an embodiment of the present invention includes the lawn mower cutter apparatus 2 according to the above embodiment.
- the lawn mower according to the embodiment of the present invention also has the above technical effects, that is, the lawn mower has a simple structure, and the cutter guard can be cleaned in time.
- the grass clippings in the gap between the cover 25 and the cutter assembly 10, the tool cover 25 and the grass clippings on the cutter assembly 10 improve cutting efficiency and a better user experience.
- a lawn mower 1 includes a fuselage 3, two drive wheels 7, and a cutter device 2 for mowing.
- the two drive wheels 7 are rotatably disposed on the body 3 and are spaced apart in the lateral direction.
- the cutter device 2 is disposed in the body 3 and includes a fixed blade 11 and a movable blade 12, and the movable blade 12 reciprocates in a lateral direction with respect to the fixed blade 11, thereby effecting cutting.
- the ratio of the cutting width of the cutter device 2 in the lateral direction to the width of the lawn mower 1 in the lateral direction is greater than or equal to 0.6.
- the lawn mower 1 according to the embodiment of the present invention is advantageous for improving the lawn mower 1 by using the cutter device 2 including the fixed blade 11 and the reciprocating movable blade 12, and satisfying the above conditions in the cutting width of the cutter device 2 in the lateral direction.
- the cutting width increases the working efficiency of the lawn mower 1. Therefore, the lawn mower 1 according to the embodiment of the present invention has an advantage that the components are arranged compactly and the cutting width is larger.
- the cutting width of the cutter device 2 in the transverse direction is greater than or equal to 25 cm. That is to say, when the lawn mower 1 is working, it is possible to cut the lawn of 25 cm or more at a time, and the work efficiency is higher.
- the cutting width of the cutter device 2 in the lateral direction may be 25 cm, 28 cm, 30 cm, etc., and may be adjusted according to actual requirements.
- the cutting width of the cutter device 2 in the transverse direction is greater than or equal to 38 cm.
- the lawn mower 1 according to an embodiment of the present invention further includes at least one support wheel 8 provided to the body 3 for adjusting the center of gravity of the lawn mower 1.
- the lawn mower 1 When the lawn mower 1 is in operation, it can be supported on the working surface by two driving wheels 7 and at least one supporting wheel 8, thereby ensuring the stability of the movement of the lawn mower 1, and by providing at least one supporting wheel 8, it is possible to pass
- the support wheel 8 adjusts the center of gravity of the lawn mower 1 so that the center of gravity of the lawn mower 1 falls between the drive wheel 7 and the support wheel 8, further ensuring the stability of the movement of the lawn mower 1.
- the support wheel 8 is a universal wheel.
- the position can be adjusted in real time according to the moving direction of the drive wheel 7, which is advantageous for improving the flexibility of the operation of the lawn mower 1, thereby improving the quality of the lawn mower 1 and the user experience.
- the longitudinal direction extends in the front-rear direction, and in the front-rear direction, the cutter device 2 is provided at the front of the body 3, and the support wheel 8 is located behind the drive wheel 7.
- the support wheel 8 and the two drive wheels 7 are used, so that the lawn mower 1 can achieve at least three points of support, thereby ensuring the movement stability of the lawn mower 1, and at the same time, setting the cutter device 2 to the fuselage
- the front portion of the 3, and the support wheel 8 is disposed at the rear of the driving wheel 7, the center of gravity of the lawn mower 1 can be adjusted between the driving wheel 7 and the supporting wheel 8, thereby ensuring the stability and mowing of the cutter device 2.
- the cutter device 2 is disposed in the middle of the fuselage 3 in the longitudinal direction, and the support wheel 8 is located in front of the cutter device 2.
- the support wheel 8 and the two drive wheels 7 are used, so that the lawn mower 1 can achieve at least three points of support, thereby ensuring the movement stability of the lawn mower 1, and at the same time, setting the cutter device 2 to the fuselage
- the middle portion of 3, and the support wheel 8 is arranged in front of the cutter device 2, the center of gravity of the lawn mower 1 can be adjusted between the drive wheel 7 and the support wheel 8, thereby ensuring the stability of the cutter device 2 and the lawn mower 1 balance of the whole machine.
- the cutter device 2 is located between the two drive wheels 7, and the components are arranged in an orderly manner and compact.
- the cutting direction is the forward direction
- the center of gravity of the lawn mower 1 falls between the drive wheel 7 and the support wheel 8 and is centered backward;
- the center of gravity of the mower 1 falls in the middle and rearward position between the driving wheel 7 and the supporting wheel 8;
- the center of gravity of the mower 1 falls on the driving wheel 7 and the position between the support wheel 8 and the center of the front.
- the lawn mower 1 further includes two guide wheels and two crawler belts 6, which are longitudinally corresponding to the two drive wheels 7 in one-to-one correspondence.
- the two crawlers 6 are respectively wound in the longitudinal direction to the corresponding drive wheels 7 and the guide wheels. That is to say, the crawler type traveling structure is formed by the drive wheel 7, the guide wheel and the crawler belt 6, which can increase the contact area of the lawn mower 1 with the work surface, thereby ensuring the balance of the lawn mower 1.
- the longitudinal direction extends in the front-rear direction, and in the front-rear direction, the cutter device 2 is disposed in front of the two crawlers 6.
- the longitudinal direction extends in the front-rear direction, and in the front-rear direction, the cutter device 2 is disposed at the rear of the body 3 and between the two crawlers 6.
- the lawn mower 1 further comprises at least one auxiliary wheel 9 provided to the cutter device 2 and floatable relative to the fuselage 3.
- the auxiliary wheel 9 By providing the auxiliary wheel 9 on the tool device 2, the tool device 2 can be supported to ensure the balance and stability of the tool device 2, further ensuring the balance of the lawn mower 1.
- the auxiliary wheel 9 is located in front of the fixed knife 11 and the movable knife 12. Therefore, the auxiliary wheel 9 can play the role of guiding and supporting, and is beneficial to improving the quality of the lawn mower 1 and further improving the user experience.
- the tool device 2 further includes a tool guard 25 that is disposed on the fixed blade 11 and the movable blade 12 and is floatably disposed on the front side of the body 3, and the auxiliary wheel 9 is disposed on the cutter Shield 25.
- the cutter device 2 includes the fixed knife 11, the movable knife 12 and the cutter guard 25, and by providing the cutter guard 25, it can function as the fixed fixed knife 11 and the movable knife 12, and can also protect the user and the animal from the blade. hurt.
- the auxiliary wheel 9 is a universal wheel.
- the auxiliary wheel 9 is a universal wheel.
- the height of the drive wheel 7 is substantially equal to the height of the lawn mower 1.
- the drive wheel 7 On the basis of a certain size of the lawn mower 1, the drive wheel 7 has a larger size relative to the whole machine of the lawn mower 1, which can increase the running stability and balance of the lawn mower 1;
- the size of the mower 1 On the basis of a certain size of the driving wheel 7, the size of the mower 1 is small, and the operation is more flexible and stable.
- the cutting size of the lawn mower 1 is 380 mm long and 250 mm wide, respectively, and the diameter of the driving wheel 7 is 200 mm; when the cutter device 2 of the lawn mower 1 is disposed on the front side of the fuselage 3, the length is 490 mm and the width is 380 mm; When the cutter device 2 of the grass machine 1 does not have the tool guard 25, it is 430 mm long and 380 mm wide; when the cutter device 2 of the lawn mower 1 is disposed in the middle of the fuselage 3, it is 450 mm long and 380 mm wide; the crawler mower When the cutter device 2 is disposed on the front side of the body 3, and the cutter device 2 is not provided with the tool guard 25, the length is 400 mm and the width is 380 mm; when the cutter device 2 of the crawler mower is disposed at the rear of the body 3, and the cutter The device 2 does not have a tool guard 25 and is 350 mm long and 380 mm wide.
- the lawn mower 1 comprises a fuselage 3, two drive wheels 7, a support wheel 8, two auxiliary wheels 9, a cutter device 2, a drive unit 4.
- the support wheel 8 and the auxiliary wheel 9 are all universal wheels.
- the two driving wheels 7 are disposed on the body 3 in a lateral direction.
- the driving device 4 is disposed on the body 3 and connected to the driving wheel 7 for driving the driving wheel 7 to rotate, thereby driving the lawn mower 1 to move.
- a support wheel 8 is disposed on the body 3 and located behind the two drive wheels 7 for supporting purposes.
- the cutter device 2 is disposed on the front side of the fuselage 3 and is floatable relative to the body 3.
- the cutter device 2 includes a fixed knife 11, a movable knife 12, a tool guard 25 and a cutter drive assembly 20, and the cutter guard 25 is set in the fixed
- the knife 11, the movable knife 12 and the cutter drive assembly 20 serve to protect the fixed knife 11 and the movable knife 12, and also protect the user and the animal from the blade.
- the fixed blade 11 extends along the lateral direction
- the movable blade 12 extends along the lateral direction and is located above the movable blade 12.
- the cutter driving assembly 20 is coupled to the movable blade 12 for driving the movable blade 12 to reciprocate in the lateral direction.
- the movable blade 12 reciprocates relative to the fixed blade 11, thereby achieving the effect of mowing.
- Two auxiliary wheels 9 are provided on the tool guard 25 and in front of the fixed knife 11 and the movable knife 12. When the cutter device 2 floats relative to the body 3, the two auxiliary wheels 9 float together with the tool guard 25, While the tool device 2 is being assisted, the position of the tool device 2 can be adjusted in real time.
- the ratio of the cutting width of the lawn mower 1 to the overall width of the lawn mower 1 is 0.6 or more.
- the overall height of the lawn mower 1 is approximately the height of the driving wheel 7.
- the lawn mower 1 includes a fuselage 3, two drive wheels 7, two support wheels 8, a cutter device 2, and a drive unit 4.
- the support wheel 8 is a universal wheel.
- the two driving wheels 7 are disposed on the body 3 in a lateral direction.
- the driving device 4 is disposed on the body 3 and connected to the driving wheel 7 for driving the driving wheel 7 to rotate, thereby driving the lawn mower 1 to move.
- Two support wheels 8 are disposed on the fuselage 3 and are located behind the two drive wheels 7 to serve as a support.
- the cutter device 2 is disposed on the front side of the fuselage 3 and is floatable relative to the body 3.
- the cutter device 2 includes a fixed knife 11, a movable knife 12, a tool guard 25 and a cutter drive assembly 20, and the cutter guard 25 is set in the fixed
- the knife 11, the movable knife 12 and the cutter drive assembly 20 serve to protect the fixed knife 11 and the movable knife 12, and also protect the user and the animal from the blade.
- the fixed blade 11 extends along the lateral direction
- the movable blade 12 extends along the lateral direction and is located above the movable blade 12.
- the cutter driving assembly 20 is coupled to the movable blade 12 for driving the movable blade 12 to reciprocate in the lateral direction.
- the movable blade 12 reciprocates relative to the fixed blade 11, thereby achieving the effect of mowing.
- the ratio of the cutting width of the lawn mower 1 to the overall width of the lawn mower 1 is 0.6 or more.
- the overall height of the lawn mower 1 is approximately the height of the driving wheel 7.
- the lawn mower 1 includes a fuselage 3, two drive wheels 7, two support wheels 8, a cutter device 2, and a drive unit 4.
- the support wheel 8 is a universal wheel.
- the two driving wheels 7 are disposed on the rear portion of the body 3 at a lateral interval.
- the driving device 4 is disposed on the body 3 and connected to the driving wheel 7 for driving the driving wheel 7 to rotate, thereby driving the lawn mower 1 to move.
- Two support wheels 8 are laterally spaced apart from the front of the fuselage 3, i.e., two support wheels 8 are located in front of the two drive wheels 7 for guiding and supporting.
- the cutter device 2 is disposed in the middle of the fuselage 3, that is, the cutter device 2 is located between the drive wheel 7 and the support wheel 8.
- the cutter device 2 includes a fixed cutter 11, a movable cutter 12 and a cutter drive assembly 20.
- the fixed cutter 11 and the movable cutter 12 are located in the middle of the fuselage 3, so that the fuselage 3 functions as a protective fixed cutter 11 and a movable cutter 12, and Protect users and animals from blades.
- the fixed knife 11 extends along the lateral direction
- the movable knife 12 extends along the lateral direction and is located above the movable knife 12
- the cutter driving assembly 20 is coupled with the movable knife 12 for driving the movable knife 12 to reciprocate in the lateral direction, thereby moving the knife 12 reciprocates relative to the fixed blade 11, thereby achieving the effect of mowing.
- the ratio of the cutting width of the lawn mower 1 to the overall width of the lawn mower 1 is 0.6 or more.
- the overall height of the lawn mower 1 is approximately the height of the driving wheel 7.
- the lawn mower 1 includes a fuselage 3, two drive wheels 7, two guide wheels, two tracks 6, a cutter device 2, and a drive unit 4.
- the two driving wheels 7 and the two guiding wheels are in one-to-one correspondence.
- the two crawling belts 6 are respectively disposed on the corresponding driving wheels 7 and the guiding wheels.
- the driving device 4 is disposed on the fuselage 3 and connected to the driving wheels 7 for driving The drive wheel 7 rotates to drive the crawler belt 6 to move, thereby driving the lawn mower 1 to move.
- the cutter device 2 is disposed on the front side of the fuselage 3.
- the cutter device 2 includes a fixed cutter 11, a movable cutter 12 and a cutter drive assembly 20.
- the fixed cutter 11 extends along the lateral direction
- the movable cutter 12 extends along the lateral direction and is located at the movable cutter.
- the cutter drive assembly 20 is coupled to the movable cutter 12 for driving the movable cutter 12 to reciprocate in the lateral direction, whereby the movable cutter 12 reciprocates relative to the fixed cutter 11, thereby achieving the effect of mowing.
- the ratio of the cutting width of the lawn mower 1 to the overall width of the lawn mower 1 is 0.6 or more.
- the overall height of the lawn mower 1 is approximately the height of the driving wheel 7.
- the lawn mower 1 comprises a fuselage 3, two drive wheels 7, two guide wheels, two tracks 6, a cutter device 2, and a drive unit 4.
- the two driving wheels 7 and the two guiding wheels are in one-to-one correspondence.
- the two crawling belts 6 are respectively disposed on the corresponding driving wheels 7 and the guiding wheels.
- the driving device 4 is disposed on the fuselage 3 and connected to the driving wheels 7 for driving The drive wheel 7 rotates to drive the crawler belt 6 to move, thereby driving the lawn mower 1 to move.
- the cutter device 2 is disposed at the rear of the fuselage 3 and between the two crawler belts 6.
- the cutter device 2 includes a fixed cutter 11, a movable cutter 12 and a cutter drive assembly 20, and the fixed cutter 11 extends along the lateral direction, and the movable cutter 12 is along
- the tool portion 20 is coupled to the movable blade 12 for driving the movable blade 12 to reciprocate in the lateral direction, whereby the movable blade 12 reciprocates relative to the fixed blade 11 to realize mowing. Effect.
- the ratio of the cutting width of the lawn mower 1 to the overall width of the lawn mower 1 is 0.6 or more.
- the overall height of the lawn mower 1 is approximately the height of the driving wheel 7.
- the lawn mower 1 includes a body 3, a traveling device 5, and a cutter device 2.
- the traveling device 5 is disposed on the body 3, the tool device 2 is disposed on the front side of the body 3, the tool device 2 is floatable relative to the body 3, and the tool device 2 can float relative to the body 3 according to the front terrain, so that the tool can be crossed Obstructions or climbing.
- the lawn mower 1 can better cut the corner position by arranging the cutter device 2 on the front side of the body 3, thereby improving the cutting effect; the cutter device 2 can be based on the front terrain relative to The fuselage 3 floats to cross the obstacle or climb the hill, improving the adaptability of the lawn mower 1 to complex terrain.
- the cutter device 2 can use a reciprocating cutting tool to make the cutting safer and the cutting width wider.
- the cutter device 2 is pivotally connected to the fuselage 3, and the cutter device 2 can pivot relative to the fuselage 3 according to the terrain in front, thereby crossing the obstacle or climbing, improving the mowing Machine 1 adaptability to complex terrain.
- the lawn mower 1 further comprises: a floating connection assembly, which is respectively coupled to the fuselage 3 and the cutter device 2 to make the cutter device 2 floatable relative to the fuselage 3.
- a portion of the floating connection assembly is coupled to the fuselage 3, another portion of the floating connection assembly is coupled to the cutter assembly 2, and the floating connection assembly is movable relative to at least one of the fuselage 3 and the cutter assembly 2 as a lawn mower 1
- the cutter device 2 can float relative to the fuselage 3 to realize the obstacle-obscuring and climbing function.
- the floating connection assembly includes a rotatable connecting shaft 63 to which the cutter device 2 is pivotally coupled by the connecting shaft 63.
- the cutter device 2 can be rotated relative to the fuselage 3 according to the front terrain to cross the obstacle or climb the slope, improving the adaptability of the lawn mower 1 to the complex terrain.
- the connecting shaft 63 can be located at any position in the main body 10, for example, can be rotated about the axial direction of the traveling device 5.
- the floating connection assembly is a linkage mechanism.
- the floating connection assembly can be a four-bar linkage 61.
- the four-bar linkage mechanism 61 includes first to fourth links, the first link is fixed to the body 3, and the fourth link is fixed to the cutter device 2, and second Two ends of the connecting rod are respectively rotatably connected to one end of the first connecting rod and one end of the fourth connecting rod, and the two ends of the third connecting rod and the other end of the first connecting rod and the other end of the fourth connecting rod respectively Rotatingly connected, when the four-bar linkage mechanism 61 is moved, the cutter device 2 can be moved relative to the body 3, thereby achieving a barrier and climbing function.
- the floating connection assembly includes a mount and a movable push rod 621.
- the mounting seat is disposed on one of the body 3 and the cutter device 2, one end of the push rod 621 is coupled to the mounting seat, and the other end of the push rod 621 is coupled to the other of the body 3 and the cutter device 2.
- the push rod 621 can be moved relative to the mount, thereby moving the cutter device 2 relative to the body 3.
- the tool device 2 comprises: a tool guard 25, a cutter assembly 10 and a cutter drive assembly 20, the cutter guard 25 being connected to the fuselage 3 by a floating connection assembly and floating relative to the fuselage 3, the cutter
- the drive assembly 20 is used to drive the cutter assembly 10 for mowing, and the cutter assembly 10 is mounted within the cutter shield 25.
- the height of the cutter assembly 10 within the tool shroud 25 is adjustable. That is, the height of the cutter assembly 10 in the tool guard 25 can be adjusted according to the requirements of different mowing heights, and the mowing effect at different heights can be achieved.
- the lower portion of the front side of the tool shroud 25 is transitionally coupled to its front edge arc.
- the front side surface of the cutter guard 25 gradually extends rearward from the top to the bottom in the vertical direction, thereby forming a guide surface on the front side of the cutter guard 25 when mowing
- the guide surface of the front side of the tool guard 25 passes through the guide surface of the tool guard 25, so that the cutter device 2 can automatically lift up in the direction of the obstacle or the climbing slope, thereby crossing the obstacle. There is no need for a separate drive to drive its rotation.
- the lawn mower 1 further comprises an obstacle-obscuring drive assembly 40.
- the obstacle-blocking drive assembly 40 is disposed on the body 3, and of course the obstacle-blocking drive assembly 40 can also be disposed on the tool device 2 (e.g., the tool guard 25).
- the obstacle-blocking drive assembly 40 is connected to the floating connection assembly, and the "connection" herein may be a direct connection or may be indirectly connected through an intermediate medium, so that the cutter device 2 (for example, the tool guard 25) can be driven relative to the body. 3 activities, so that the mower 1 can cross obstacles or climb the slope according to the terrain.
- the lawn mower 1 further includes a transmission mechanism 60 that is in driving connection with the obstacle-blocking drive assembly 40 and the floating connection assembly, respectively, such that the obstacle-blocking drive assembly 40 can drive the floating connection assembly to operate (eg, four connections)
- the movement of the lever mechanism 61, the movement of the push rod 621, or the rotation of the connecting shaft 63 allows the cutter device 2 to move relative to the body 3, thereby passing over an obstacle or climbing a hill.
- the transmission 60 can be one of a belt drive, a gear drive, a worm gear, or a combination of at least two transmissions 60.
- the connecting shaft 63 is directly driven by the obstacle-blocking drive assembly 40, and the power take-off shaft of the obstacle-blocking drive assembly 40 is detachably coupled to the connecting shaft 63, such as the power take-off shaft of the obstacle-blocking drive assembly 40. It is screwed to the connecting shaft 63 for easy installation and replacement.
- the lawn mower 1 further comprises: a terrain recognition sensor (not shown) and a control module (not shown).
- the terrain recognition sensor can be used to detect if there is an obstacle in the front terrain or if it needs to climb.
- the control module is in communication with the terrain recognition sensor and the obstacle-obscuring drive assembly 40, respectively, so that the operation of the obstacle-blocking drive assembly 40 can be controlled based on the front terrain detected by the terrain recognition sensor.
- the floating connection assembly is an electric push rod 62 mounted on one of the body 3 and the cutter device 2, and the power output end of the electric push rod 62 (ie, one end of the push rod) With the other of the fuselage 3 and the cutter device 2, when the electric pusher 62 is operated, the cutter device 2 can be driven to move relative to the fuselage 3, thereby achieving a barrier and climbing function.
- the travel device 5 may be two drive wheels 7 arranged opposite each other, the drive wheels 7 being moved by rotation, while the tool guard 25 may be supported on the ground to ensure stable operation of the lawn mower 1.
- the travel device 5 also includes at least one auxiliary wheel 9 for achieving balance.
- the mower 1 incorporates a gyroscope and an accelerometer (not shown) to adjust the balance of the mower in real time in accordance with the operating state of the mower 1 to ensure smooth operation.
- the travel device 5 may be a tracked travel device, and the tool guard 25 may float relative to the ground to avoid damage to the terrain of the bottom of the tool guard 25.
- the lawn mower 1 includes a fuselage 3, a traveling device 5, a cutter device 2, a barrier drive assembly 40, a transmission mechanism 60, and a terrain recognition sensor (not shown). And control module (not shown).
- the travel device 5 is arranged on the fuselage 3, the travel device 5 comprising two oppositely arranged drive wheels 7, the cutter device 2 being arranged on the front side of the fuselage 3, the tool device 2 comprising a tool guard 25, a cutter assembly 10 and a tool drive Component 20.
- the tool guard 25 and the body 3 are pivotally connected by a connecting shaft 63.
- the front side surface of the tool guard 25 is vertically formed from the top to the bottom to form an arc, and the cutter assembly 10 and the cutter drive assembly 20 are located on the front side of the tool guard 25, near the curved edge, and the cutter drive assembly 20 is used to drive the cutter assembly 10 for mowing, and the cutter assembly 10 is a reciprocating cutting tool.
- the transmission mechanism 60 is a belt transmission mechanism, and the belt transmission mechanism is respectively connected to the obstacle-blocking drive assembly 40 and the connecting shaft 63.
- the lawn mower 1 can be brought into contact with the ground by the cutter device 2 and the two drive wheels 7, thereby maintaining balance.
- the travel device 5 further includes at least one auxiliary wheel 9 to achieve at least three points of support to ensure balance of the lawn mower 1.
- the lawn mower 1 has a built-in gyroscope and an accelerometer.
- the gyroscope and the accelerometer can be operated in real time according to the operating state of the lawn mower 1. Adjust the balance of the mower to ensure smooth operation.
- the terrain recognition sensor detects the front terrain, and for example, the terrain can be identified by the change of the current of the tool drive assembly 20 when the cutter device 2 collides with the terrain.
- the tool guard 25 When an obstacle is encountered, the tool guard 25 will lift in the direction of the obstacle, thereby crossing the obstacle.
- the tool guard 25 When encountering a climbing, the tool guard 25 will float autonomously in the direction of the climbing, and the running device 5 climbs the slope.
- the signal can be transmitted to the control module, so that the control module controls the obstacle crossing drive assembly 40 to start working, that is, the obstacle drive assembly 40 drives the transmission.
- the mechanism 60 is driven to drive the tool guard 25 to rotate to raise the cutter device 2, thereby causing the lawn mower 1 to cross obstacles or climb the slope.
- the connecting shaft 63 is directly driven by the obstacle drive assembly 40, and the power output shaft of the obstacle drive assembly 40 is detachably coupled to the connecting shaft 63, and other configurations are the same as those of the above embodiment.
- the obstacle crossing or climbing is achieved under the direct drive of the obstacle-blocking drive assembly 40.
- the lawn mower 1 is moved by the crawler belt, and the cutter guard 25 can be prevented from coming into contact with the ground, so that the safety performance can be improved while reducing the resistance during running.
- the cutter device 2 is coupled to the fuselage 3 via a four-bar linkage 61.
- two oppositely disposed links of the four-bar linkage mechanism 61 are respectively fixed to the tool guard 25 of the cutter device 2 and the body 3, and the other two oppositely disposed links of the four-bar linkage mechanism 61 are respectively The two connecting rods are rotatably connected.
- the four-bar linkage mechanism 61 starts to operate to drive the tool guard 25 to float upward, thereby raising the cutter device 2, so that the lawn mower 1 Cross obstacles or climb.
- the traveling device 5 includes two oppositely disposed driving wheels 7 and an auxiliary wheel 9 provided at the rear of the body 3, thereby ensuring the smooth running of the lawn mower 1.
- the body 3 is provided with an electric push rod 62.
- the power output end of the electric push rod 62 is connected to the tool guard 25 of the cutter device 2, and the current side has an obstacle or needs to climb.
- the power take-off end of the electric push rod 62 extends, thereby pushing the cutter guard 25 upward relative to the ground, causing the lawn mower 1 to cross the obstacle or climb the slope.
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Abstract
一种割草机,包括:机身(3);刀具驱动组件(20),所述刀具驱动组件(20)包括切割马达(21);安装于机身(3)并由切割马达(21)驱动的刀具组件(10),刀具组件(10)包括第一切割件和第二切割件,第一切割件与第二切割件相对往返运动以割草;所述割草机(1)还包括闭锁机构(15),刀具组件(10)通过闭锁机构(15)可拆卸地安装于机身(3)。该割草机通过闭锁机构实现刀具组件和机身的快速拆装,便于用户更换刀具组件。
Description
本发明涉及园林工具设备技术领域,具体地,涉及一种割草机。
随着计算机技术和人工智能技术的不断进步,智能割草机已经开始慢慢的走进人们的生活。智能割草机能够自动在用户的草坪中割草、充电,无需用户干涉。这种自动工作***一次设置之后就无需再投入精力管理,将用户从清洁、草坪维护等枯燥且费时费力的家务工作中解放出来。
智能割草机可以在边界线或其他形式限定的范围内在草坪上行走并修整草坪,而传统的割草机,其切割机构大多数为在机壳下方居中设置的中心旋转刀盘,刀盘距离机壳外侧较远,而割草机行走到草坪边缘的时候,割草机会自动转向,使得边界线附近的草坪无法切割。而刀盘相对于整个智能割草机的面积占比很大,造成智能割草机的结构不能更加紧凑。
为了能够获得更大的切割宽度和更紧凑的结构布局,智能割草机可以安装相对往返运动的刀具,而这类刀具在工作过程中会频繁摩擦,导致刀片切割能力下降或损坏,需要用户更换。
发明内容
为克服现有技术的缺陷,本发明所要解决的问题是提供一种刀具拆换方便的智能割草机。
本发明解决现有技术问题所采用的技术方案是:
一种割草机,包括:机身;刀具驱动组件,包括切割马达,安装于所述机身;刀具组件,安装于所述机身,由所述切割马达驱动,所述刀具组件包括第一切割件和第二切割件,所述第一切割件与所述第二切割件相对往返运动以割草;所述割草机包括闭锁机构,所述刀具组件通过所述闭锁机构可拆卸地安装于所述机身。
在其中一个实施例中,所述闭锁机构包括底盖,安装于机身,以使所述刀具组件的至少一部分夹持在所述底盖与所述机身之间。
在其中一个实施例中,所述闭锁机构包括闭锁元件,设置于所述机身和/或所述底盖,所述闭锁元件在锁定位置和解锁位置之间可活动,在所述锁定位 置时所述底盖与所述机身连接,在所述解锁位置时所述底盖与所述机身脱离。
在其中一个实施例中,所述闭锁元件包括卡扣,用于接合所述底盖与所述机身。
在其中一个实施例中,所述闭锁机构包括螺纹连接组件,所述刀具组件通过所述螺纹连接组件安装于所述机身。
在其中一个实施例中,所述刀具驱动组件包括旋转传动元件,与所述切割马达连接,由所述切割马达驱动;所述刀具组件包括接合传动元件,与所述旋转传动元件配接,以使所述切割马达驱动所述刀具组件。
在其中一个实施例中,所述旋转传动元件包括至少一个突起,所述接合传动元件包括凹部,所述凹部接收所述至少一个突起。
在其中一个实施例中,所述第一切割件包括第一刀架和第一刀片,所述第一刀片由所述所述刀具驱动组件驱动,所述第一刀片通过连接件与所述第一刀架可拆卸地连接。
在其中一个实施例中,所述连接件包括固定连接件或活动连接件。
在其中一个实施例中,所述活动连接件包括第一传动件和第二传动件,所述第一传动件包括相对设置的第一端部和第二端部,分别与所述第一刀片和所述第二切割件活动连接;所述第二传动件与所述第一传动件活动连接,由所述切割马达驱动,带动所述第一刀片相对于所述第二切割件往返运动。
在其中一个实施例中,所述刀具组件包括预紧件,所述预紧件设置于所述第一切割件和所述第二切割件中的至少一个,以使所述第一切割件的至少一部分压紧所述第二切割件。
与现有技术相比,本发明的有益效果是:通过闭锁机构实现刀具组件和机身的快速拆装,便于用户更换刀具组件。
本发明解决现有技术问题所采用的另一种技术方案是:
一种割草机,包括:本体;切割器,具有能够相对往复运动的第一刀具和第二刀具,用于执行切割工作;动力传动***,设置于所述本体上,配置成带动所述切割器中至少第一刀具相对于第二刀具做往复运动;其中,所述动力传动***包括:驱动机构,用以提供驱动力;第一传动机构,具有至少一个第一连臂,所述第一连臂包括相对设置的第一端部和第二端部,所述第一端部与所述第一刀具转动连接,所述第二端部与所述第二刀具直接或间接地转动连接;第二传动机构,配置成由所述驱动机构驱动以带动至少一个所述第一连臂运动, 进而带动与所述第一连臂直接或间接地转动连接的至少第一刀具相对于第二刀具做往复运动,以进行切割工作。
上述动力传动***,通过至少一个第一连臂同时与切割器中的第一刀具和第二刀具转动连接,接触处为滚动摩擦,避免使用传统的导向组件而所引起的滑动摩擦,滚动摩擦力小于滑动摩擦力,故而可减少接触磨损和传动损耗,还可减少噪音,延长使用寿命。
在其中一个实施例中,所述第二刀具通过连板与所述第二端部连接,所述第一连臂的两端部分别通过第一连接件和第二连接件与所述第一刀具和所述连板转动连接;在所述第一连接件与所述第一端部和所述第一刀具之间设有第一转套;在所述第二连接件与所述第二端部和所述连板之间设有第二转套。
在其中一个实施例中,所述第一转套和/所述第二转套为铜套或轴承。
在其中一个实施例中,所述第一连接件和所述第二连接件分别对应为第一销轴和第二销轴,所述第一连臂的两端部通过第一销轴和第二销轴分别与所述第一刀具和所述连板铰接。
在其中一个实施例中,所述第一连臂的个数为两个,所述第一刀具、连板和两个所述第一连臂组成连杆机构;所述第二传动机构与至少一个所述第一连臂的中间部连接。
在其中一个实施例中,所述第一连臂的两端部通过第三连接件和第四连接件分别与所述第一刀具和所述第二刀具转动连接;在所述第三连接件与所述第一端部和所述第一刀具之间设有第三转套;在所述第四连接件与所述第二端部和所述第二刀具之间设有第四转套;所述第一刀具、第二刀具和两个所述第一连臂组成连杆机构。
在其中一个实施例中,所述连杆机构为平行四连杆机构,所述第一刀具能够相对于所述第二刀具做沿所述第二刀具的长轴方向的往复直线运动。
在其中一个实施例中,所述第二传动机构包括:曲柄,配置成被所述驱动机构驱动以传递驱动力;摇杆,配置成被所述曲柄带动,进而带动与所述摇杆连接的所述第一连臂运动。
在其中一个实施例中,所述曲柄为偏心轮,所述偏心轮旋转一周时,切割器中的第一刀具刚好被驱动往复运动一个周期。
在其中一个实施例中,所述驱动机构包括:马达;减速箱总成,配置成将所述马达的驱动力传递给所述曲柄。
在其中一个实施例中,所述动力传动***还包括:支撑架,配置成为所述驱动机构提供支撑,所述支撑架设置于所述切割器上。
本发明还提供一种动力传动***,包括:驱动机构,用以提供驱动力;第一传动机构,具有至少一个第一连臂,所述第一连臂包括相对设置的第一端部和第二端部,所述第一端部与切割器中的第一刀具直接或间接地转动连接,所述第二端部与切割器中的第二刀具直接或间接地转动连接;第二传动机构,配置成由驱动机构驱动以带动至少一个所述第一连臂运动,进而带动与所述第一连臂直接或间接地转动连接的至少第一刀具相对于第二刀具做往复运动,以进行切割工作。
本发明解决现有技术问题所采用的另一种技术方案是:
根据本发明实施例的割草机,包括:刀具组件;刀具驱动组件,所述刀具驱动组件设于所述刀具组件的顶部且与所述刀具组件连接以驱动所述刀具组件进行割草;底盖,所述底盖设于所述刀具组件的底部且与所述刀具驱动组件可拆卸连接以将所述刀具组件的至少一部分夹持在所述底盖与所述刀具驱动组件之间;刀具拆换开关,所述刀具拆换开关设于所述底盖和所述刀具驱动组件中的一个上,所述刀具拆换开关在锁定位置和解锁位置之间可活动,且被构造成在所述锁定位置时所述底盖与所述刀具驱动组件连接,在所述解锁位置时所述底盖与所述刀具驱动组件脱离。
根据本发明实施例的割草机,通过将底盖与刀具驱动组件可拆卸地连接,从而将刀具组件的至少一部分夹持在刀具驱动组件与底盖之间,通过设置刀具拆换开关,可以方便控制底盖与刀具驱动组件的组装和拆卸,从而利于实现快速拆换刀具,用户体验好。
可选地,所述刀具拆换开关设于所述刀具驱动组件且具有第一卡接部,所述底盖具有适于与所述第一卡接部卡接的第二卡接部。
可选地,所述刀具拆换开关还具有向下延伸的开关连接臂,所述第一卡接部形成在所述开关连接臂的下端。
可选地,所述底盖还具有向上延伸的底盖连接臂,所述第二卡接部形成在所述底盖连接臂的上端。
可选地,所述第一卡接部和所述第二卡接部中的一个形成卡钩,所述第一卡接部和所述第二卡接部中的另一个形成适于与所述卡钩卡接的卡槽。
根据本发明进一步的实施例,所述割草机还包括设于所述刀具拆换开关与 所述刀具驱动组件之间的弹性元件。
可选地,所述刀具拆换开关为按钮开关,所述弹性元件为弹簧且所述弹簧的轴向两端分别与所述刀具驱动组件和所述按钮开关止抵连接。
可选地,所述刀具驱动组件上设有支撑板,所述支撑板具有用于对所述弹性元件进行定位的定位部。
根据本发明可选的实施例,所述刀具驱动组件包括:切割马达,所述切割马达与所述刀具组件连接,用于驱动所述刀具组件进行割草;护罩,所述护罩罩设在所述切割马达外侧,所述刀具拆换开关设于所述护罩且所述护罩具有用于避让所述刀具拆换开关的避让口。
可选地,所述刀具拆换开关包括两个,两个所述刀具拆换开关设在所述刀具驱动组件的相对两侧。
本发明解决现有技术问题所采用的另一种技术方案是:
根据本发明第一方面实施例的割草机刀具装置,包括:定刀,所述定刀沿横向延伸;动刀,所述动刀设于所述定刀上方且相对于所述定刀可沿所述横向往复移动;连接组件,所述连接组件分别与所述定刀和所述动刀连接以使所述动刀的至少一部分刀刃压紧所述定刀的刀刃。
根据本发明实施例的割草机刀具装置,通过将动刀的至少一部分刀刃压紧定刀的刀刃,使得割草机的动刀相对于定刀沿所述横向往复移动时,增大了动刀的刀刃与定刀的刀刃之间的摩擦力,实现自磨刀效果,使刀刃可以保持锋利,减少了拆换刀具的次数,有利于提高切割效率,降低使用成本。
根据本发明的一个实施例,所述连接组件包括:定位件,所述定位件安装于所述定刀,所述动刀具有沿所述横向延伸的滑槽,所述定位件适于穿过所述滑槽且相对于所述动刀可沿所述滑槽的长度方向往复移动;至少一个预紧件,所述预紧件与所述定刀和所述动刀中的至少一个连接以使所述动刀的至少一部分刀刃压紧所述定刀的刀刃。
可选地,至少一个所述预紧件连接在所述定刀和所述动刀之间。
可选地,至少一个所述预紧件为支撑台,所述支撑台设于所述定刀和所述动刀之间,且所述支撑台远离所述动刀的刀刃设置。
可选地,所述支撑台设于所述定刀的朝向所述动刀的一侧表面、所述动刀的朝向所述定刀的一侧表面、所述定位件的侧壁中的至少一个上。
可选地,至少一个所述预紧件形成为磁铁,所述磁铁设于所述定刀和所述 动刀之间,且所述磁铁邻近所述动刀和/或所述定刀的刀刃设置。
可选地,所述定位件的一端伸出所述滑槽且具有外部尺寸大于所述滑槽宽度尺寸的卡头,至少一个预紧件形成连接于所述卡头与所述动刀之间的弹性元件。
根据本发明的又一个实施例,所述连接组件包括:扭簧,所述扭簧的至少一部分静止不动,所述扭簧的至少另一部分随所述动刀一起运动。
可选地,所述扭簧固定于所述定刀且远离所述定刀的刀刃,所述扭簧的两端分别与所述动刀连接。
可选地,所述定刀上设有限位压板,所述扭簧通过所述限位压板固定于所述定刀。
进一步地,所述定刀包括定刀刀架和安装于所述定刀刀架的定刀刀片,所述限位压板与所述定刀刀架一体成型。
本发明解决现有技术问题所采用的另一种技术方案是:
根据本发明第一方面实施例的割草机刀具总成,包括:护罩;刀具组件,所述刀具组件设于所述护罩内且与所述护罩的内壁面间隔设置;驱动组件,所述驱动组件与所述刀具组件连接,用于驱动所述刀具组件进行割草;吹风组件,所述吹风组件具有风道、与所述风道连通的进风口和出风口,所述出风口朝向所述刀具组件和/或所述刀具组件与所述护罩之间的间隙。
根据本发明实施例的割草机刀具总成,通过设置吹风组件,可以在割草机工作时对刀具组件和/或刀具组件与护罩之间的间隙进行吹风,避免因草屑堵塞刀具与护罩之间的间隙而导致无法进草的问题发生,有利于提高割草机的切割效率,用户体验更好。
根据本发明的一个实施例,所述吹风组件由所述驱动组件驱动形成气流。
根据本发明的一个实施例,所述吹风组件包括:导风件,所述导风件具有所述风道和所述出风口;可转动的风扇,用于向所述风道内供气以形成气流。
可选地,所述风扇由所述驱动组件驱动而转动。
可选地,所述风扇设于所述导风件内。
可选地,所述风扇为离心风扇。
根据本发明进一步的实施例,所述导风件的至少一部分形成朝向所述刀具组件弯曲的弯管。
可选地,所述导风件形成蜗壳状。
可选地,驱动组件为电机且所述电机包括电机罩壳和电机本体,所述风扇与所述电机本体的电机轴连接,所述导风件形成所述电机罩壳的一部分。
本发明解决现有技术问题所采用的另一种技术方案是:
根据本发明实施例的割草机,包括:机身;行驶装置,所述行驶装置设于所述机身;刀具装置,所述刀具装置设在所述机身的前侧且所述刀具装置相对于所述机身可浮动,所述刀具装置根据前方地形相对于所述机身浮动以越过障碍物或进行爬坡。
根据本发明实施例的割草机,通过将刀具装置布置在机身的前侧,使其可以更好地切割到边角位置,提高切割效果;刀具装置可以根据前方地形相对于机身浮动,从而越过障碍物或进行爬坡,提高了割草机对复杂地形的适应能力。
根据本发明的一个实施例,所述割草机还包括:连接组件,所述连接组件分别与所述机身和所述刀具装置连接以使所述刀具装置相对于所述机身可浮动。
可选地,所述连接组件为连杆机构。
可选地,所述连接组件包括:安装座,所述安装座设于所述机身和所述刀具装置中的一个上;可移动的推杆,所述推杆的一端与所述安装座连接,所述推杆的另一端与所述机身和所述刀具装置中的另一个连接。
可选地,所述连接组件包括:可转动的连接轴,所述刀具装置通过所述连接轴与所述机身可枢转地连接。
根据本发明进一步的实施例,所述割草机还包括:越障驱动组件,所述越障驱动组件设于所述机身或所述刀具装置,且所述越障驱动组件与所述连接组件连接以驱动所述刀具装置相对于所述机身活动。
更进一步地,所述割草机还包括:传动机构,所述传动机构分别与所述越障驱动组件和所述连接组件传动连接。
可选地,所述传动机构为带传动机构、齿轮传动机构、蜗轮蜗杆传动机构中的一种或至少两种组合。
可选地,所述连接组件由所述越障驱动组件直接驱动。
根据本发明的一个实施例,所述割草机还包括:地形识别传感器,用于检测前方地形是否有障碍物或是否需要爬坡;控制模块,所述控制模块分别与所述地形识别传感器和所述越障驱动组件通讯连接,以根据所述地形识别传感器检测到的前方地形情况控制所述越障驱动组件。
可选地,所述连接组件为电动推杆,所述电动推杆安装于所述机身和所述刀具装置中的一个上,所述电动推杆的动力输出端与所述机身和所述刀具装置中的另一个连接。
根据本发明的又一个实施例,所述刀具装置包括:刀具护罩,所述刀具护罩与所述机身连接且相对于所述机身可浮动;刀具组件和用于驱动所述刀具组件进行割草的刀具驱动组件,所述刀具组件安装于所述刀具护罩内。
可选地,所述刀具组件在所述刀具护罩内的高度可调。
可选地,所述刀具护罩的前侧下部与下表面前缘圆弧过渡连接。
可选地,所述刀具护罩的前侧表面沿上下方向从上到下逐渐向后延伸。
本发明解决现有技术问题所采用的另一种技术方案是:
根据本发明实施例的割草机,包括:机身,所述机身具有平行于所述割草机的前进方向的纵向以及平行于工作平面且垂直于所述纵向的横向;两个驱动轮,两个所述驱动轮分别可转动地设于所述机身且沿所述横向间隔布置;用于割草的刀具装置,所述刀具装置设于所述机身且包括定刀片和相对于所述定刀片沿所述横向往复运动的动刀片;其中,所述刀具装置沿所述横向的切割宽度与所述割草机沿所述横向的宽度的比值大于等于0.6。
根据本发明实施例的割草机,通过采用包括定刀片和往复运动的动刀片的刀具装置,并使刀具装置沿横向的切割宽度满足上述条件,可以提高割草机的切割宽度,提高割草机的工作效率。因此,根据本发明实施例的割草机具有各部件排布紧凑、切割宽度更大的优点。
根据本发明的一个实施例,所述刀具装置沿所述横向的切割宽度大于等于25cm。
可选地,所述刀具装置沿所述横向的切割宽度大于等于38cm。
根据本发明的一个实施例,所述割草机还包括:至少一个支撑轮,所述支撑轮设于所述机身,用于调整所述割草机的重心。
可选地,所述支撑轮为万向轮。
根据本发明的一个可选实施例,所述纵向沿前后方向延伸,在前后方向上、所述刀具装置设于所述机身的前部,所述支撑轮位于所述驱动轮的后方。
根据本发明另一个可选实施例,所述纵向沿前后方向延伸,在前后方向上、所述刀具装置设于所述机身的中部,所述支撑轮位于所述刀具装置的前方。
根据本发明的一个实施例,在所述横向上、所述刀具装置位于两个所述驱 动轮之间。
根据本发明的一个实施例,所述割草机还包括:至少一个辅助轮,所述辅助轮设于所述刀具装置且相对于所述机身可浮动。
根据本发明的又一个实施例,所述割草机还包括两个导向轮和两个履带,两个所述导向轮与两个所述驱动轮一一对应地沿所述纵向排布,两个所述履带分别沿所述纵向绕设于对应的所述驱动轮和所述导向轮。
在一些示例中,所述纵向沿前后方向延伸,在前后方向上、所述刀具装置设于两个所述履带的前方;或,所述刀具装置设于所述机身的后部且位于两个所述履带之间。
根据本发明的一个实施例,所述驱动轮的高度与所述割草机的高度大致相等。
以上所述的本发明的目的、技术方案以及有益效果可以通过下面附图实现:
图1是一个实施例的割草机的结构示意图;
图2是一个实施例的刀具驱动组件与刀具组件的结构示意图;
图3是一个实施例的割草机的部装图;
图4是一个实施例的刀具驱动组件与刀具组件的分解图;
图5是一个实施例的刀具驱动组件与刀具组件的结构示意图;
图6是一个实施例的底盖与刀具拆换开关的结构示意图;
图7是一个实施例的的刀具组件与刀具驱动组件的组装示意图;
图8是一个实施例的的刀具组件结构图。
图9是一个实施例的连接件示意图;
图10是一个实施例的的刀具组件的部分分解示意图;
图11是一个实施例的动力传动***示意图;
图12是图11的***示意图;
图13是图11中部分机构的俯视图;
图14是一个实施例的割草机刀具组件的结构示意图;
图15是一个实施例的割草机刀具组件的侧视图;
图16是一个实施例的割草机刀具组件的结构示意图;
图17是一个实施例的割草机刀具组件的结构示意图;
图18是一个实施例的割草机刀具组件的弹性元件的结构示意图;
图19是一个实施例的刀具组件的结构示意图;
图20是一个实施例的割草机刀具装置的结构示意图;
图21是一个实施例的割草机刀具装置的分解图;
图22是一个实施例的驱动组件与吹风组件的组装示意图;
图23是一个实施例的驱动组件与吹风组件的结构的俯视图;
图24一个实施例的割草机的结构示意图;
图25是一个实施例的割草机的侧视图;
图26是一个实施例的割草机的结构示意图;
图27是一个实施例的割草机的侧视图;
图28是一个实施例的割草机的侧视图;
图29是一个实施例的割草机的侧视图;
图30是一个实施例的割草机的结构示意图;
图31是一个实施例的割草机的结构示意图;
图32是一个实施例的割草机的结构示意图;
图33是一个实施例的割草机的结构示意图;
图34是一个实施例的割草机的结构示意图;
图35是一个实施例的割草机的结构示意图。
下面详细描述本发明的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,仅用于解释本发明,而不能理解为对本发明的限制。
在本发明的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。在本发明的描述中,除非另有说明,“多个”的含义是两个或两个以上。
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆 卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。
本发明提供一种割草机,如图1和图2所示。本实施例中,割草机1是一种智能割草机。割草机1包括机身3,安装于机身3两侧的驱动轮7,安装于机身3内部的刀具驱动组件20,包括切割马达21,安装于机身3并由切割马达21驱动的刀具组件10,控制割草机1自动工作及自动行走的控制模块(未示出),以及提供能量的能源模块(未示出)。以所述割草机前进方向为所述机身的纵向,以垂直于地面的方向为所述机身的竖向,以同时垂直于所述纵向和竖向的方向为所述机身的横向。当然,在其他实施例中,割草机1也可以是由人工操作的割草机,如手推割草机等。
在一个实施例中,切割马达21固定在机身3上,利用减速器22将动力传递给传动轴。刀具组件10用于执行切割工作,包括相对往返运动的第一切割件和第二切割件,第一切割件与传动轴通过偏心传动机构传递动力,使传动轴的旋转运动转换为第一切割件的往复运动。第一切割件包括动刀12,第二切割件包括定刀11。
传统的割草机的切割模块为刀盘上安装的多个刀片,与刀盘式切割模块相比,剪刀式刀具的有效工作面积更大,单位时间内的切割效率更高。
在一个实施例中,如图3所示,刀具驱动组件20与刀具组件10连接以驱动刀具组件10进行割草。割草机1还包括闭锁机构15,刀具组件10通过闭锁机构15安装于机身3,且刀具组件10可拆卸。
在一些实施例中,如图5所示,刀具组件10外侧安装有刀具护罩25,以防止用户在刀具组件10工作过程中碰触到而发生伤害。
在一个实施例中,如图4所示,闭锁机构15包括底盖30,底盖30安装于机身3,底盖30设于刀具组件10的底部且与刀具驱动组件20可拆卸连接以将刀具组件10的至少一部分夹持在底盖30与刀具驱动组件20之间。
闭锁机构15还包括闭锁元件155,闭锁元件155设置于机身3或底盖30上,也可以在设置于3和底盖30,以相互配接。闭锁元件155包括至少两个位置:锁定位置和解锁位置,当闭锁元件155在锁定位置时,底盖30安装于机身3上,当闭锁元件155在解锁位置时,底盖30可以从机身3脱离。
在一个实施例中,闭锁元件155为刀具拆换开关41,设于底盖30和刀具 驱动组件20中的一个上,刀具拆换开关41在锁定位置和解锁位置之间可活动,且被构造成在锁定位置时底盖30与刀具驱动组件20卡接,在解锁位置时底盖30与刀具驱动组件20脱离。
若需要拆换刀具时,通过操控刀具拆换开关41,从而使刀具驱动组件20与底盖30脱离,进而方便更换刀具组件10,操作简单。
根据本发明实施例的割草机,通过将底盖30与刀具驱动组件20可拆卸地连接,从而将刀具组件10的至少一部分夹持在刀具驱动组件20与底盖30之间,通过设置刀具拆换开关41,可以方便控制底盖30与刀具驱动组件20的组装和拆卸,从而利于实现快速拆换刀具,用户体验好。
根据本发明的一个实施例,刀具驱动组件20与底盖30可拆卸地卡接相连,结构简单、紧凑,连接方便、可靠。
在一个实施例中,如图6所示,刀具拆换开关41设于刀具驱动组件20且具有第一卡接部412,底盖30具有适于与第一卡接部412卡接的第二卡接部32。可选地,第一卡接部412和第二卡接部32中的一个形成卡钩,第一卡接部412和第二卡接部32中的另一个形成适于与卡钩卡接的卡槽。
在一个实施例中,刀具拆换开关41具有卡钩,底盖30具有适于与刀具拆换开关41的卡钩适配的卡槽;或者,刀具拆换开关41具有卡槽,底盖30具有适于与刀具拆换开关41的卡槽适配的卡钩,连接方便、可靠。
在一个实施例中,刀具拆换开关41还具有向下延伸的开关连接臂411,第一卡接部412形成在开关连接臂411的下端,从而将第一卡接部412伸向底盖30以与底盖30上的第二卡接部32卡接相连。
在一个实施例中,底盖30还具有向上延伸的底盖连接臂31,第二卡接部32形成在底盖连接臂31的上端,从而将第二卡接部32伸向刀具驱动组件20以与刀具拆换开关41上的第一卡接部412卡接相连。
在一个实施例中,刀具驱动组件20的相对两侧(如图4所示的左侧和右侧)分别设有刀具拆换开关41,每个刀具拆换开关41具有沿竖直方向(如图7所示的竖向)延伸的开关连接臂411,即开关连接臂411朝向底盖30延伸,且开关连接臂411的下端形成有第一卡接部412(例如卡钩或卡槽)。
进一步地,底盖30的相对两侧(如图4所示的左右两侧)分别设有底盖连接臂31,每个底盖连接臂31沿竖向延伸,即底盖连接臂31朝向刀具驱动组件20延伸,且底盖连接臂31的上端形成有第二卡接部32(例如卡槽或卡钩)。
若需要拆换刀具时,通过操控刀具拆换开关41,使得第一卡接部412与第二卡接部32脱离配合关系,从而使刀具驱动组件20与底盖30脱离,进而方便更换刀具组件10。更换刀具后,再将底盖30装在刀具组件10的底部,将刀具驱动组件20装在刀具组件10的顶部,配合到位后,通过操控刀具拆换开关41,使底盖30、刀具组件10、刀具驱动组件20组装一体,装拆容易,操作方便。
在一个实施例中,割草机还包括设于刀具拆换开关41与刀具驱动组件20之间的弹性元件42,通过在刀具拆换开关41与刀具驱动组件20之间设置弹性元件42,使刀具拆换开关41与刀具驱动组件20的连接形式形成柔性连接,有利于提升用户操控刀具拆换开关41时的体感,从而提升用户体验,并且还可以降低操作时的噪音,提升割草机的品质。
在一些示例中,刀具拆换开关41可以形成推钮,例如刀具拆换开关41设于刀具驱动组件20的左右两侧,且每个刀具拆换开关41可以前后方向移动,用户通过推动刀具拆换开关41进行操控。
在另一些示例中,刀具拆换开关41为按钮开关,弹性元件42为弹簧且弹簧的轴向两端分别与刀具驱动组件20和按钮开关止抵连接。
如图4所示,弹簧的轴向沿左右方向延伸,按钮开关可沿左右方向按压,例如,位于左侧的按钮开关的左极限位置为所述锁定位置,位于左侧的按钮开关的右极限位置为所述解锁位置。
类似地,位于右侧的按钮开关的左极限位置为所述解锁位置,位于右侧的按钮开关的右极限位置为所述锁定位置,通过操控按钮开关,使其在所述锁定位置和所述解锁位置之间活动,从而使第一卡接部412与第二卡接部32卡接或脱离,结构简单、操控方便。
在一些示例中,刀具驱动组件20上设有支撑板43,支撑板43具有用于对弹性元件42进行定位的定位部431,由此方便对弹性元件42进行定位安装,保证刀具拆换开关41的使用可靠性。
根据本发明的一个可选实施例,刀具驱动组件20包括:用于驱动刀具组件10进行割草的切割马达21。
可选地,切割马达21可以为电机,切割马达21与刀具组件10连接。马达外罩23罩设在切割马达21外侧,从而对刀具驱动组件20形成保护。进一步地,刀具拆换开关41设于马达外罩23上,且马达外罩23具有用于避让刀具拆换开关41的避让口231,从而方便刀具拆换开关41的安装和操控。
在一些示例中,支撑板43设在马达外罩23的避让口231处,且支撑板43的朝外的一侧设有定位部431,定位部431可以形成凸出于支撑板43表面的定位凸起。
进一步地,刀具拆换开关41包括开关本体和开关连接臂411,开关连接臂411的上端与开关本体的下侧连接,刀具拆换开关41的开关本体设于避让口231处且外露在马达外罩23外,从而方便用户进行操控,刀具拆换开关41的开关连接臂411位于马达外罩23内以与底盖30进行卡接。弹簧连接在按钮开关与支撑板43之间,且弹簧通过支撑板43上的定位部431进行定位,结构简单,连接可靠性高,安装方便,便于操控。
若刀具组件10设在割草机的主体的前侧,刀具组件10被刀具马达外罩包围,拆换刀具时,按下刀具拆换开关41,取下刀具组件10和刀具马达外罩,用于扳手拧下刀具马达外罩上方的螺母,卸下刀具马达外罩,再更换新的刀具组件10。
若刀具组件10设在割草机的中间位置,将割草机从后方抬起或翻转,然后用手按下刀具拆换开关41,取下刀具组件10并更换新的刀具组件10即可。
在一个实施例中,割草机1包括:刀具组件10、刀具驱动组件20、底盖30、闭锁元件155,具体的,闭锁元件155包括:两个刀具拆换开关41、两个弹性元件42和两个支撑板43。
在一个实施例中,如图9所示,闭锁机构15包括螺纹连接件16,螺纹连接件16可以是螺钉、螺栓等形式,通过螺纹连接件16可以将刀具组件10直接固定在机身3上,通过与螺纹连接件16相互匹配的工作即可实现刀具组件10的拆装。
参照图4,刀具驱动组件20设在刀具组件10的顶部且包括切割马达21(例如电机)、减速器22,切割马达21的输出轴与减速器22的输入轴连接,减速器22的输出轴与刀具组件10上的接合传动元件24连接,从而驱动动刀12相对于定刀11往复移动的运动形式。马达外罩23罩设在切割马达21和减速器22的外侧且具有两个相对布置的避让口231,每个避让口231处设有向下延伸的支撑板43,且支撑板43朝外的一侧设有定位部431。
如图4所示,刀具驱动组件20包括旋转传动元件26。在一个实施例中,旋转传动元件26包括多个锥形突起,相应的,刀具组件10包括接合传动元件24,接合传动元件24包括与锥形突起相匹配的凹部,使得旋转传动元件26能 与接合传动元件24相互配接。当刀具组件10安装于机身3后,旋转传动元件26与接合传动元件24配接,使得刀具驱动组件能够驱动动刀12。
在一个实施例中,旋转传动元件26可以包括一个特殊形状的突起,如六角形突起,接合传动元件24可以包括相应的六角形凹部。通过旋转传动元件26和接合传动元件24的结构设计使得用户更容易地将刀具组件10安装到正确的位置。
底盖30设在刀具组件10的底部且底盖30与刀具驱动组件20可拆卸地卡接相连。具体地,底盖30具有两个相对布置的底盖连接臂31,每个底盖连接臂31的上端形成有第二卡接部32。两个刀具拆换开关41分别对应设在马达外罩23的两个避让口231处,且每个刀具拆换开关41与支撑板43之间设有弹性元件42,每个刀具拆换开关41具有向下延伸的开关连接臂411,开关连接臂411的下端形成有适于与第一卡接部412卡接的第一卡接部412。
若需要拆换刀具时,通过操控刀具拆换开关41,按下刀具拆换开关41,使得第一卡接部412与第二卡接部32脱离配合关系,即刀具拆换开关41与底盖30分离,同时刀具组件10与底盖30分离,将刀具组件10取下,更换新的刀具组件10即可,也可以将刀具组件10的定位销132、连接件70拆下,单独更换定刀刀片112或动刀刀片122,实现刀具快速拆换。
更换刀具后,再将底盖30装在刀具组件10的底部,将刀具驱动组件20装在刀具组件10的顶部,配合到位后,通过操控刀具拆换开关41,使底盖30、刀具组件10、刀具驱动组件20组装一体,操作方便。
如图7所示,刀具组件10包括定刀11和动刀12,动刀12相对于定刀11可往复移动,定刀11和动刀12通过连接件70实现可活动地连接。
在一个实施例中,定刀11包括定刀刀架111和定刀刀片112,动刀12为整体件。在一个实施例中,定刀11包括定刀刀架111和定刀刀片112,定刀刀架111和定刀刀片112上分别设有定位孔131,定刀刀架111与定刀刀片112通过穿设在定位孔131的定位销132实现连接。动刀12包括动刀刀架121和动刀刀片122,动刀刀架121与动刀刀片122通过连接件70实现连接。
在一个实施例中,连接件70为固定连接件。如图7所示,连接件70将动刀刀架121与动刀刀片122固定连接,刀具驱动组件20通过驱动动刀刀架121实现对动刀刀片122的驱动,使得动刀刀片122与动刀刀架121同步,相对于定刀11往返运动。连接件70可以是螺栓、螺钉等形式。
在一个实施例中,如图8和图9所示,连接件70的一侧固定于动刀刀架121,连接件70的另一侧包括定位键141,定位键141连接动刀刀片122,使得动刀刀片122与动刀刀架121的位置相对固定。
在一个实施例中,连接件70为活动连接件,如图11-13所示,连接件70包括第一传动件200和第二传动件300,第一传动件200具有至少一个第一连臂210,第二传动件300被刀具驱动组件20驱动以带动至少一个第一连臂210运动,进而带动与第一连臂210直接或间接地转动连接的至少动刀12相对于定刀11做往复运动,以进行切割工作。
在本实施例中,第一传动件200具有2个第一连臂210,每个第一连臂210均可包括相对设置的第一端部和第二端部。由于第一连臂210的个数为两个,此时动刀12、连板600和两个第一连臂210可组成四连杆机构。连板600的结构、功能与动刀刀架121一致。
进一步地,第一端部与刀具组件10中的动刀12直接或间接地转动连接,第二端部与刀具组件10中的定刀11直接或间接地转动连接。
在本实施例中,动刀12直接与第一端部转动连接,定刀11通过连板600与第二端部转动连接。具体地,第一连臂210的两端部可分别通过第一连接单元510和第二连接单元520与动刀12和连板600转动连接。
通过至少一个第一连臂210同时与刀具组件10中的动刀12和定刀11转动连接,接触处为滚动摩擦,避免使用传统的导向组件而所引起的滑动摩擦,滚动摩擦力小于滑动摩擦力,故而可减少接触磨损和传动损耗,还可减少噪音,延长整个装置的使用寿命。
在本实施例中,在第一连接单元510与第一端部和动刀12之间可设有第一转套530,在第二连接单元520与第二端部和连板600之间设有第二转套540。具体地,第一转套530和第二转套540分别套设在第一连接单元510和第二连接单元520上,此时第一转套530分别与第一连接单元510和动刀12相接触,第二转套540分别与第二端部和连板600相接触。在一实施方式中,第一转套530和/第二转套540可为铜套或轴承。如此通过增加转套可进一步减少转动连接的滚动摩擦,减少磨损和传动损耗。
在一实施例中,第一连接单元510和第二连接单元520分别对应为第一销轴和第二销轴,第一连臂210的两端部通过第一销轴和第二销轴分别与动刀12和连板600铰接。具体地,第一端部和动刀12上可分别设有供第一销轴的一端 穿过的第一通孔和第二通孔,第二端部和连板600上分别设有供第二销轴的一端穿过的第三通孔和第四通孔。此时,第一销轴穿过第一通孔和第二通孔,第二销轴穿过第三通孔和第四通孔,以实现第一连臂210的两端部分别与动刀12和连板600铰接。此外,为了避免刀具组件10或第一连臂210在切割过程中晃动而脱离,在第一销轴和第二销轴的自由端的端部安装轴向紧固件,该紧固件可为常用的紧固螺母或其他紧固元件。
在本实施例中,第一连臂210为直条形,第一端部和第二端部分别为直线形的第一连臂210的两个端部。
在一实施方式中,上述连杆机构为平行四连杆机构。具体地,如图13所示,定义两个第一连臂210的第一端部与动刀12连接处的连线为L1,两个第一连臂210的第二端部与定刀11直接或间接连接处的连线为L2。设置L1与L2相互平行且L1与刀具的往复运动方向一致。故而,此时所构成的连杆机构为平行四连杆机构。如此,无论第一连臂210如何运动,均可带动动刀12相对于定刀11做沿刀具理论上往复运动方向的运动。当动刀12和定刀11均为长条形时,动刀12能够相对于定刀11做沿刀具长轴方向的往复直线运动。
此外,上述连杆机构为平行四连杆机构时,可根据切割平面的高度进行相应的自动高度调节,提高了切割效率和准确性。
在本实施例中,如图11-13所示,第二传动件300包括曲柄310和摇杆320,其被刀具驱动组件20驱动以带动至少一个第一连臂210运动,进而带动与第一连臂210直接或间接地转动连接的至少动刀12相对于定刀11做往复运动,以进行切割工作。上述第二传动件300可与至少一个第一连臂210的中间部连接。
曲柄310与刀具驱动组件20连接,其被刀具驱动组件20驱动以传递驱动力。在本实施例中,曲柄310为偏心轮。在其他实施例中,曲柄310可为偏心块或偏心杆。
摇杆320一端与至少一个第一连臂210连接,另一端与曲柄310连接。摇杆320被曲柄310带动,进而带动与摇杆320连接的第一连臂210运动。在本实施例中,摇杆320与一个第一连臂210连接。具体地,摇杆320可与第一连臂210的中间部连接,其连接处可位于第一端部和第二端部之间。该连接可为紧固连接。如此,更方便对第一传动件200的运动。此外,在铰接处还可设置转套,以减少传动件在铰接处的磨损量。在其他实施例中,第二传动件300还可包括中间杆,中间杆的两端分别与摇杆320和第一连臂210连接,此时摇杆 320可通过中间杆与至少2个第一连臂210连接,进而带动多个第一连臂210运动。
在一实施方式中,曲柄310为偏心轮时,偏心轮旋转一周时,刀具组件10中的动刀12刚好被驱动往复运动一个周期。
在本实施例中,如图11-13所示,刀具驱动组件20包括切割马达21和与切割马达21连接的减速器22。减速器22与第二传动件300中的曲柄310相连,其将切割马达21的驱动力传递给第二传动件300中的曲柄310。切割马达21可为本领域常用型号的电机,减速器22可为齿轮减速箱,其可包括安装架、设置于安装架上的箱体、设置于箱体上的第一输入轴和第一输出轴、以及设置于箱体内部的齿轮组。在本实施例中,该安装架可安装在连板600上,摇杆320设置于安装架和连板600之间且从安装架之间穿过,在安装架上设有允许摇杆320往复摆动的空间,如此即可保证正常的切割工作,也可使得整个装置的结构更紧凑。当然,在其他实施例中,安装架可安装在其他适合的位置。
第一输入轴和第一输出轴分别与电机的输出轴和曲柄310连接,电机的输出轴周向转动,并通过减速器22的齿轮传动以带动第一输出轴转动,进而带动曲柄310转动,再通过第二传动件300将曲柄310的转动转化为摇杆320的往复摆动,继而带动与摇杆320连接的第一连臂210运动,最后带动与第一连臂210连接的刀具组件10中的刀具做往复运动,以实现切割工作。
在本实施例中,第一传动件200和第二传动件300的数量相同且均为1个。在其他实施例中,第一传动件200和第二传动件300的数量可不同,也可为其他多个。如此,当第一传动件200和第二传动件300为其他数量时,可通过第一传动件200和第二传动件300分别一一控制来进行动力传递;此外,还可通过增加中间件来进行过渡连接以实现动力传递。
在又一实施例中,动刀12和定刀11均可为动刀,两者能够被驱动并做相对双往复运动,两者的运动方向可相同或相反。当两者的运动方向相反时,动刀12和定刀11的运动速度不受限制。当两者的运动方向相同时,动刀12和定刀11应当具有不同的运动速度,以使得动刀12和定刀11之间具有相对往复运动。
动刀12和定刀11的刀片形状优选地相同,两者可为普遍采用的直线形。在其他实施方式中,两者也可为圆弧形或波浪线或其他符合切割条件的相同或不同的刀片形状。当两刀具为圆弧形时,动力传动***能够带动其中一个刀具 相对于另一刀具做往复圆弧运动。
在一实施方式中,动刀12和定刀11刀片质量和厚度可相同。在另一实施方式中,动刀的刀片质量和厚度均小于定刀的刀片质量和厚度。如此可进一步减少动刀和定刀之间的摩擦,且提高刀具组件10的整体稳定性,降低噪音。
在一实施方式中,动刀12和定刀11至少其中之一的相接触面上设有凹槽。该凹槽可为若干镂空槽,也可为盲槽。如此可减少第一刀片与第二刀片的接触面积,进而减少第一刀片和第二刀片之前的滑动摩擦。该凹槽可设置在定刀11和/或定刀11上。在本实施例中,该凹槽设置在定刀11上。
下面结合附图对本实施例的一实施方式的实现切割过程进行详细说明。
如图11-13所示,电机与减速器22连接,减速器22的第一输出轴连接偏心轮,偏心轮与摇杆320通过轴承连接,2个摇臂、连板600及动刀12连接组成平行四连杆机构,摇杆320与其中一个第一连臂210连接,定刀11位于动刀12下方且通过例如螺栓的紧固件与连板600连接。当电机转动通过偏心轮带动摇杆320,摇杆320带动第一连臂210,使由第一连臂210等组成的四连杆机构中的动刀12相对定刀11产生往复移动,实现切割功能。
图13为动刀12的初始位置。在刀具组件10的工作过程中,首先,偏心轮逆时针运动带动摇杆320移动,摇杆320推动四连杆机构向左移动,动刀12向左移动,此时动刀12移动至最左位置。然后,偏心轮逆时针运动带动摇杆320移动,摇杆320推动四连杆机构向右移动,动刀12向右移动,此时动刀12回至初始位置。然后,偏心轮逆时针运动带动摇杆320移动,摇杆320推动四连杆机构向右移动,动刀12向右移动,此时动刀12移动至最右位置。最后,为偏心轮逆时针运动带动摇杆320移动,摇杆320推动四连杆机构向左移动,动刀12向左移动,此时动刀12回至初始位置。以上偏心轮旋转一周使动刀从左至右往复一个周期,实现了切割功能。
作为一种变形方案,第一端部和动刀12其中之一设有第一柱(未图示),其中另一设有能够使得第一柱***的通孔。第二端部和连板600其中之一设有第二柱(未图示),其中另一设有能够使得第二柱***的通孔。如此可通过第一柱和第二柱***对应的通孔中,以实现第一连臂210与动刀12和连板600之间的转动连接。如此即可保证正常的切割工作,也可使得整个装置的结构更紧凑。当然,在其他实施方式中,安装架可安装在其他适合的位置。
进一步地,在第一柱外壁上与动刀12和定刀11接触处可设有转套,该转 套可为铜套或轴承。如此可通过该转套来减少第一连臂210与刀具组件10之间的滚动摩擦,进一步减少噪音,提供使用寿命。
作为一种变形方案,不同于以上实施例中第一连臂210为直线形,在本实施方式中,第一连臂210可为折线形或弧形或其他适合的形状。当第一连臂210为折线形时,第一连臂210上的两端部可与刀具组件10中的两个刀具连接,此时两个第一连臂210与动刀12和连板600/定刀11构成四连杆机构。
作为一种变形方案,第一连臂210的个数为1个。该第一连臂210与刀具组件10上的动刀12和定刀11直接或间接的连接。
作为另一种变形方案,第一连臂210的个数为3个或多个。此时,与第一连臂210连接的部件可相应的进行增加或调整。
作为一种变形方案,刀具组件10还至少包括第三刀具,第三刀具可与第一、二刀具层叠设置。通过第一传动件200与刀具组件10中的若干刀具连接,以控制刀具组件10中的至少三个刀具做相对的往复运动,可提高切割效率。
作为一种变形方案,第一端部和第二端部不限于设置在第一连臂210的两个端部位置。两者可设置在第一连臂210的中间位置,此时第一连臂210与刀具组件10连接处不限于第一连臂210的两个端部位置。另外,摇杆320与第一连臂210的中间位置相连接,该中间位置可为设置在第一端部和第二端部之间的位置,还可为设置远离第一端部或第二端部的位置。
作为一种变形方案,动力传动***还包括支撑架(未图示),该支撑架为刀具驱动组件20提供支撑,支撑架设置于刀具组件10上。此时刀具驱动组件20可仅包括电机,电机可放置在该支撑架上。具体地,支撑架由若干支撑杆和支撑平台组成,支撑杆设置在连板600上,支撑平台用于支撑刀具驱动组件20。若干支撑杆之间设有匹配摇杆320摆幅间隙。
作为另一种方案,没有设置连板600,第一连臂210的两端部可直接与动刀12和定刀11连接。具体地,第一连臂210的两端部可通过第三连接单元(未图示)和第四连接单元(未图示)分别与动刀12和所述定刀11转动连接。在第三连接单元与第一端部和动刀12之间设有第三转套;在第四连接单元与第二端部和定刀11之间设有第四转套。具体地,可将第三转套和第四转套分别套设在第三连接单元和第四连接单元上,此时第三转套分别与第一连接单元和第一切割件相接触,第四转套分别与第二端部和第二切割件相接触。在一实施方式中,第一转套530和/第二转套540可为铜套或轴承。如此通过增加转套可进一 步减少转动连接的滚动摩擦,减少磨损和传动损耗。
同样的,动刀12与第一连臂210之间可设置过渡件,通过该过渡件实现动刀12与第一连臂210之间的连接。
进一步地,第三连接单元和第四连接单元可为销轴结构。第一端部和动刀12上以及第二端部和定刀11上,分别设有供对应销轴的一端穿过的通孔。此时,各销轴分别穿过各自的通孔,以实现第一连臂210的两端部分别与动刀12和定刀11铰接。当然,为了避免刀具组件10或第一连臂210在切割过程中晃动而脱离,在销轴的自由端的端部安装轴向紧固件,该紧固件可为常用的紧固螺母或其他紧固元件。当然,在另一实施方式中,第三连接单元和第四连接单元可为类似于上述第一柱和第二柱的结构,在此不再赘述。
进一步地,动刀12、定刀11和两个第一连臂210组成连杆机构。第二传动件300中的摇杆320可与第一连臂210的中间部相连接。具体内容与实施例1类似,在此不再赘述。
在一个实施例中,如图14-图19所示,刀具组件10包括:定刀11、动刀12和连接件70。定刀11沿横向(如图14所示的左右方向)延伸。动刀12设于定刀11上方且相对于定刀11可沿所述横向往复移动。连接件70分别与定刀11和动刀12连接以使动刀12的至少一部分刀刃压紧定刀11的刀刃。
通过将动刀12的至少一部分刀刃压紧定刀11的刀刃,使得割草机的动刀12相对于定刀11沿所述横向往复移动时,增大了动刀12的刀刃与定刀11的刀刃之间的摩擦力,实现自磨刀效果,使刀刃可以保持锋利,减少了拆换刀具的次数,有利于提高切割效率,降低使用成本,用户体验更好。
如图14-图18所示,根据本发明的一个实施例,连接件70包括:定位件71和至少一个预紧件。定位件71沿竖直方向(如图14所示的竖向)延伸且安装于定刀11,动刀12具有沿横向延伸的滑槽121,定位件71适于穿过滑槽121。当动刀12相对于定刀11往复移动时,定位件71静止不动,且相对于动刀12沿滑槽121的长度方向往复移动。
在一些示例中,至少一个预紧件与定刀11连接以使动刀12的至少一部分刀刃压紧定刀11的刀刃。在另一些示例中,至少一个预紧件与动刀12连接以使动刀12的至少一部分刀刃压紧定刀11的刀刃。
当然,预紧件也可以分别与定刀11和动刀12连接,从而使动刀12的刀刃 与定刀11的刀刃压紧,进而使得动刀12相对于定刀11移动时,动刀12的刀刃与定刀11的刀刃之间的摩擦力增大,实现自磨刀效果。
如图14-图16所示,在一些示例中,至少一个预紧件连接在定刀11和动刀12之间。
在图14和图15的示例中,至少一个预紧件为支撑台721,支撑台721夹设于定刀11和动刀12之间,并且,在从动刀12的刀刃向刀背的方向(如图14和图15所示的前后方向)上、支撑台721远离动刀12的刀刃设置,这样支撑台721将动刀12的刀背抬高,使得动刀12的刀刃压紧定刀11的刀刃,从而增大动刀12与定刀11之间的摩擦力,实现自磨刀的效果。
可选地,支撑台721可以设于定刀11的朝向动刀12的一侧表面,例如支撑台721一体成型在定刀11的上表面。支撑台721也可以设于动刀12的朝向定刀11的一侧表面,例如支撑台721一体成型在动刀12的下表面。
当然,支撑台721也可以形成在定位件71的侧壁上。具体地,定位件71的顶端具有横截面为圆形的卡头711,定位件71的中段形成沿竖向延伸的圆柱状,且定位件71的中段侧壁设有分别止抵在定刀11上表面和动刀12下表面的支撑台721,从而将动刀12的刀背太高,使动刀12的刀刃压紧定刀11的刀刃。
由于动刀刀片、定刀刀片112通常采用金属材料制造,例如磁性金属材料。因此,在图16示出的示例中,至少一个预紧件为磁铁722,磁铁722夹设于定刀11和动刀12之间,并且磁铁722邻近动刀12和/或定刀11的刀刃设置,从而通过磁铁722与定刀11、动刀12之间的吸附力将定刀11与动刀12的吸合,进而将动刀12的刀刃吸附并压紧于定刀11的刀刃,进一步增大了动刀12与定刀11之间的摩擦力,实现自磨刀的效果。
如图17所示,在一些示例中,定位件71的一端伸出滑槽121且具有外部尺寸大于滑槽121宽度尺寸的卡头711,至少一个预紧件形成连接于卡头711与动刀12之间的弹性元件723,由此弹性元件723可以加大卡头711与动刀12之间的预紧力,从而使动刀12的刀刃压紧定刀11的刀刃,同时还具有防松的效果。
可选地,如图18所示,弹性元件723形成弹簧,弹簧套设在定位件71上且弹簧的上端止抵在卡头711的下表面,弹簧的下端止抵在动刀12的上表面,结构简单,预紧、放松效果好。当然,弹性元件723也可以为弹性垫圈、弹性膜片等,对此本发明不做限定。
如图19所示,根据本发明的又一个实施例,连接件70包括:扭簧724,扭簧724的至少一部分静止不动,扭簧724的至少另一部分随动刀12一起运动。由此,当动刀12相对于定刀11往复运动时,扭簧724的至少一部分相对于扭簧724的其中一个部分运动,从而将使其产生将动刀12压紧在定刀11上的预紧力,进而增大了动刀的刀刃与定刀的刀刃之间的摩擦力。
在一些示例中,扭簧724固定于定刀11且远离定刀11的刀刃,扭簧724的两端分别与动刀12连接,从而向下压紧动刀12,则增大动刀12在移动时、动刀12的刀刃与定刀11的刀刃之间的摩擦力。
当然,扭簧724的设置位置并不限于定刀11上,扭簧724还可以安装在除去动刀12等活动部件的其他部件上,只要可以使扭簧724达到将动刀12压紧定刀11的效果的技术方案均属于本发明的保护范围。
在一些示例中,定刀11上设有限位压板113,扭簧724通过限位压板113固定于定刀11。限位压板113包括纵向板和横向板,纵向板的下端与定刀11连接,横向板的一侧与纵向板的上端连接,从而使限位压板113与定刀11之间限定出限位槽,扭簧724的至少一部分安装于限位槽内,防止扭簧724向上弹起,从而依靠扭簧724的两端将动刀12向下压紧定刀11。
在一些具体示例中,定刀11包括定刀刀架111和安装于定刀刀架111的定刀刀片112,限位压板113与定刀刀架111一体成型。通过将限位压板113一体成型在定刀刀架111上,可以简化连接工序,并且成型方便,有利于提高生产效率,通过将定刀刀架111与定刀刀片112分开成型再组装,从而方便更换定刀刀片112,降低成本。类似地,动刀12的结构也可以同定刀11的结构一样,这里不再赘述。
这里需要说明的是,以上描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。例如支撑台721,磁铁722,弹性元件723,扭簧724中的至少两个进行组合安装于定刀11和/或动刀12,从而使动刀12可以更好地对定刀11进行预紧,从而提高切割效率,减少拆换刀具的次数,降低使用成本。
在一个实施例中,如图14和图15所示,割草机刀具组件10包括:定刀11、动刀12、两个定位件71。定刀11沿横向(如图14所示的左右方向)延伸,动刀12具有两个间隔设置的滑槽121,每个滑槽121沿横向延伸,动刀12设于定刀11上方。
定位件71的顶部具有横截面面积大于中段横截面面积的卡头711,两个定位件71分别穿过对应滑槽121,从而将动刀12定位于定刀11上,并且动刀12相对于定刀11往复移动时,定位件71始终位于滑槽121内,滑槽121可以起到导向的作用。
每个定位件31定位件71的中段侧壁设有多个沿其周向间隔设置的支撑台321支撑台721,支撑台321支撑台721的上端与动刀12的下表面止抵,支撑台321支撑台721的下端与定刀11的上表面止抵,从而将动刀12的刀背抬高,使动刀12的刀背与定刀11的刀背间隔设置,而动刀12的刀刃压紧定刀11的刀刃,即动刀12产生了弯曲形变,以对定刀11进行预紧,增大动刀12在移动时、定刀11的刀刃与动刀12的刀刃之间的摩擦力,实现自磨刀效果,无需频繁拆换刀具。
在一个实施例中,如图16所示,割草机刀具组件10包括:定刀11、动刀12、两个定位件71和多个磁铁722。定刀11沿横向(如图14所示的左右方向)延伸,动刀12具有两个间隔设置的滑槽121,每个滑槽121沿横向延伸,动刀12设于定刀11上方。
定位件71的顶部具有横截面面积大于中段横截面面积的卡头711,两个定位件71分别穿过对应滑槽121,从而将动刀12定位于定刀11上,并且动刀12相对于定刀11往复移动时,定位件71始终位于滑槽121内,滑槽121可以起到导向的作用。
多个磁铁722设在定刀11与动刀12之间,且每个磁铁722邻近动刀12的刀刃设置,从而使动刀12与定刀11吸合,即使动刀12的刀刃压紧定刀11的刀刃,增大动刀12在移动时、定刀11的刀刃与动刀12的刀刃之间的摩擦力,实现自磨刀效果,无需频繁拆换刀具。
在一个实施例中,如图17和图18所示,割草机刀具组件10包括:定刀11、动刀12、两个定位件71和两个弹性元件723。定刀11沿横向(如图14所示的左右方向)延伸,动刀12具有两个间隔设置的滑槽121,每个滑槽121沿横向延伸,动刀12设于定刀11上方。
定位件71的顶部具有横截面面积大于中段横截面面积的卡头711,两个定位件71分别穿过对应滑槽121,从而将动刀12定位于定刀11上,并且动刀12相对于定刀11往复移动时,定位件71始终位于滑槽121内,滑槽121可以起到导向的作用。每个定位件71的卡头711与动刀12的上表面之间设有一个弹 性元件723,从而实现预紧、放松的效果,增大动刀12在移动时、定刀11的刀刃与动刀12的刀刃之间的摩擦力,实现自磨刀效果,无需频繁拆换刀具。
在一个实施例中,如图19所示,割草机刀具组件10包括:定刀11、动刀12、两个定位件71和一个扭簧724。
定刀11沿横向(如图14所示的左右方向)延伸,定刀11上设有限位压板113,且限位压板113远离定刀11的刀刃设置。动刀12具有两个间隔设置的滑槽121,每个滑槽121沿横向延伸,动刀12设于定刀11上方。
定位件71的顶部具有横截面面积大于中段横截面面积的卡头711,两个定位件71分别穿过对应滑槽121,从而将动刀12定位于定刀11上,并且动刀12相对于定刀11往复移动时,定位件71始终位于滑槽121内,滑槽121可以起到导向的作用。
扭簧724通过限位压板113固定于的定刀11上,且扭簧724的两端与动刀12连接,从而依靠扭簧724的两端将动刀12向下压紧定刀11,增大动刀12在移动时、定刀11的刀刃与动刀12的刀刃之间的摩擦力,实现自磨刀效果,无需频繁拆换刀具。
根据本发明实施例的割草机刀具组件10,可以使动刀12压紧定刀11,从而使动刀12的至少一部分刀刃与定刀11的刀刃相互摩擦,无需人为干预实现自磨刀效果,保持刀刃的锋利程度,无需频繁拆换刀具,使用成本低。
由于根据本发明实施例的割草机刀具组件10具有上述技术效果,因此根据本发明实施例的割草机也具有上述技术效果,即所述割草机的切割效率高,无需频繁拆换刀具,使用成本低,用户体验好。
在一个实施例中,如图20-图23所示,刀具护罩25、刀具组件10、刀具驱动组件20组成刀具装置2,本实施例中,刀具装置2还包括吹风组件50。
刀具组件10设于刀具护罩25内且与刀具护罩25的内壁面间隔设置。刀具驱动组件20与刀具组件10连接,用于驱动刀具组件10进行割草。吹风组件50具有风道511、与风道511连通的进风口(未示出)和出风口512,出风口512朝向刀具组件10和/或刀具组件10与刀具护罩25之间的间隙。
割草机工作时,当草的密度比较大,单位时间内产生的草屑较多,草屑容易卡在刀具组件10与刀具护罩25之间,或者粘在刀具护罩25以及刀具组件10上,通过设置吹风组件50,可以在割草机工作时对对刀具组件10和/或刀具 组件10与刀具护罩25之间的间隙进行吹风,从而将刀具组件10与刀具护罩25之间的间隙内的草屑、刀具护罩25与刀具组件10上的草屑及时吹走。
根据本发明实施例的割草机刀具装置2,通过设置吹风组件50,可以在割草机工作时对刀具组件10和/或刀具组件10与刀具护罩25之间的间隙进行吹风,避免因草屑堵塞刀具与刀具护罩25之间的间隙而导致无法进草的问题发生,有利于提高割草机的切割效率,用户体验更好。
在一些可选的示例,吹风组件50具有独立的驱动装置,即所述驱动装置与刀具驱动组件20相互独立,从而在风道511内形成气流以吹走刀具组件10、刀具护罩25以及刀具组件10与刀具护罩25之间的间隙内的草屑。
在另一些可选的示例,吹风组件50由刀具驱动组件20驱动形成气流。也就是说,刀具驱动组件20在驱动刀具组件10进行割草时,可以同步驱动吹风组件50工作以形成气流,有利于减少割草机的部件数量,从而降低成本。
如图22和图23所示,在一些示例中,吹风组件50包括:导风件51和可转动的风扇52,导风件51具有风道511和出风口512,风扇52与导风件51连接,且风扇52在转动时,用于向风道511内供气以形成气流。其中,风扇52可以与刀具驱动组件20连接,从而依靠刀具驱动组件20的驱动而发生转动。
可选地,风扇52可以设在导风件51内,即风扇52设在风道511内,从而将外界空气通过进风口引入风道511内,在高速旋转的风扇52的作用下形成高速气流,最后通过出风口512排出导风件51外,并吹向刀具组件10和/或刀具组件10与刀具护罩25之间的间隙。当然,风扇52也可以设在导风件51外,风扇52产生的高速气流通过导风件51导向刀具组件10。
由于离心风机的通风效果好,特别适合用在管道抽风或送风的领域中,因此,在一些示例中,风扇52可以为离心风扇52,从而方便将离心风扇52甩出的气流通过导风件51引向刀具组件10处。
如图22所示,在一些示例中,导风件51的至少一部分形成朝向刀具组件10弯曲的弯管。具体地,导风件51的一端连通至风扇52,导风件51的另一端延伸至刀具组件10的上方,从而将风扇52产生的高速气流导向刀具组件10。
在一些示例中,导风件51形成蜗壳状,从而与风扇52、刀具驱动组件20构成蜗壳风机,将蜗壳风机产生的气流导向刀具组件10处。
在一些具体示例中,刀具驱动组件20为电机且电机包括电机罩壳和电机本体,风扇52与电机本体的电机轴连接,导风件51形成电机罩壳的一部分。
刀具驱动组件20工作时,可以驱动刀具组件10工作以进行割草,同时刀具驱动组件20的电机轴带动风扇52转动,高速旋转的风扇52既可以加快电机本体周围的空气流动,从而对电机本体进行散热,延长电机的使用寿命,又可以将产生的高速气流导向刀具组件10以及刀具组件10与刀具护罩25之间的间隙,从而将刀具组件10与刀具护罩25之间的间隙内的草屑、刀具护罩25与刀具组件10上的草屑及时吹走,避免因草屑堵塞刀具与刀具护罩25之间的间隙而导致无法进草的问题发生,有利于提高割草机的切割效率。
根据本发明实施例的割草机包括根据上述实施例所述的割草机刀具装置2。
由于根据本发明实施例的割草机刀具装置2具有上述技术效果,因此根据本发明实施例的割草机也具有上述技术效果,即所述割草机的结构简单,可以及时清理掉刀具护罩25与刀具组件10之间的间隙内的草屑、刀具护罩25和刀具组件10上的草屑,从而提高切割效率,用户体验更好。
如图24-图33所示,根据本发明一个实施例的割草机1包括:机身3、两个驱动轮7、用于割草的刀具装置2。两个驱动轮7分别可转动地设于机身3且沿横向间隔布置。
刀具装置2设于机身3且包括定刀11和动刀12,动刀12相对于定刀11沿横向往复运动,从而实现切割。其中,刀具装置2沿横向的切割宽度与割草机1沿横向的宽度的比值大于等于0.6。
根据本发明实施例的割草机1,通过采用包括定刀11和往复运动的动刀12的刀具装置2,并使刀具装置2沿横向的切割宽度满足上述条件,有利于提高割草机1的切割宽度,从而提高割草机1的工作效率。因此,根据本发明实施例的割草机1具有各部件排布紧凑、切割宽度更大的优点。
根据本发明的一个实施例,刀具装置2沿横向的切割宽度大于等于25cm。也就是说,割草机1工作时,可以一次性切割大于等于25cm的草坪,工作效率更高。例如,刀具装置2沿横向的切割宽度可以为25cm、28cm、30cm等,具体可以根据实际要求进行调整。
在一些可选的示例中,刀具装置2沿横向的切割宽度大于等于38cm。
根据本发明实施例的割草机1还包括:至少一个支撑轮8,支撑轮8设于机身3,用于调整割草机1的重心。
割草机1在工作时,可以通过两个驱动轮7和至少一个支撑轮8支撑在工作面上,从而保证割草机1移动的稳定性,并且,通过设置至少一个支撑轮8,可以通过支撑轮8调节割草机1的重心,使割草机1的重心落在驱动轮7与支撑轮8之间,进一步保证割草机1移动的稳定性。
可选地,支撑轮8为万向轮。通过将支撑轮8设置成万向轮,可以根据驱动轮7的移动方向实时地调整位置,有利于提高割草机1运行的灵活性,从而提升割草机1的品质以及用户体验。
如图24至图29所示,在一些可选的示例中,纵向沿前后方向延伸,在前后方向上、刀具装置2设于机身3的前部,支撑轮8位于驱动轮7的后方。通过设置支撑轮8,采用支撑轮8与两个驱动轮7,可以使割草机1实现至少三点支撑,从而保证割草机1的移动稳定性,同时,将刀具装置2设在机身3的前部,并将支撑轮8设在驱动轮7的后方,可以将割草机1的整机重心调整到驱动轮7与支撑轮8之间,从而保证刀具装置2的稳定和割草机1整机的平衡。
如图30所示,在另一些可选的示例中,在纵向上、刀具装置2设于机身3的中部,支撑轮8位于刀具装置2的前方。通过设置支撑轮8,采用支撑轮8与两个驱动轮7,可以使割草机1实现至少三点支撑,从而保证割草机1的移动稳定性,同时,将刀具装置2设在机身3的中部,并将支撑轮8设在刀具装置2的前方,可以将割草机1的整机重心调整到驱动轮7与支撑轮8之间,从而保证刀具装置2的稳定和割草机1整机的平衡。
在一些示例中,在横向上、刀具装置2位于两个驱动轮7之间,各部件排布有序,结构紧凑。具体地,以切割方向为前进方向,当割草机1在平路前进时,割草机1的整机重心落在驱动轮7和支撑轮8中间且中心偏后的位置;当割草机1爬坡时,割草机1的整机重心落在驱动轮7和支撑轮8中间且偏后的位置;当割草机1下坡时,割草机1的整机重心落在驱动轮7和支撑轮8中间且中心偏前的位置。
如图31至图33所示,在又一些可选的示例中,割草机1还包括两个导向轮和两个履带6,两个导向轮与两个驱动轮7一一对应地沿纵向排布,两个履带6分别沿纵向绕设于对应的驱动轮7和导向轮。也就是说,通过驱动轮7、导向轮和履带6形成履带式行驶结构,这样可以增加割草机1与工作面的接触面积,从而保证割草机1的平衡。
如图31所示,在一些可选的示例中,纵向沿前后方向延伸,在前后方向上、 刀具装置2设于两个履带6的前方。
如图32和图33所示,在另一些可选的示例中,纵向沿前后方向延伸,在前后方向上、刀具装置2设于机身3的后部且位于两个履带6之间。
根据本发明的一个实施例,割草机1还包括:至少一个辅助轮9,辅助轮9设于刀具装置2且相对于机身3可浮动。通过在刀具装置2上设置辅助轮9,可以对刀具装置2起到支撑作用,保证刀具装置2的平衡和稳定,进一步保证割草机1的整机平衡。
在一些示例中,辅助轮9位于定刀11和动刀12的前方。由此,辅助轮9既可以起到导引的作用,又可以起到支撑的作用,有利于提升割草机1的品质,进一步提升用户体验。
在一些具体示例中,刀具装置2还包括:刀具护罩25,刀具护罩25罩设于定刀11和动刀12且可浮动地设于机身3的前侧,辅助轮9设于刀具护罩25。换言之,刀具装置2包括定刀11、动刀12和刀具护罩25,通过设置刀具护罩25,可以起到防护定刀11和动刀12的作用,还可以保护用户以及动物不受刀片的伤害。
可选地,辅助轮9为万向轮。通过将辅助轮9设置成万向轮,不仅可以根据割草机1的工作环境实时地调整位置,有利于提高割草机1运行的灵活性,而且可以避免刀具装置2刮损草地,从而提升割草机1的品质以及用户体验。
根据本发明的一个实施例,驱动轮7的高度与割草机1的高度大致相等。在割草机1的整机尺寸一定的基础上,驱动轮7相对于割草机1的整机来说,其尺寸较大,可以增加割草机1的运行稳定性和平衡性;而在驱动轮7的尺寸一定的基础上,割草机1的整机尺寸较小,运行更灵活、稳定。
可选地,割草机1的切割尺寸分别为长380mm、宽250mm,驱动轮7的直径200mm;割草机1的刀具装置2设在机身3前侧时,长490mm、宽380mm;割草机1的刀具装置2不带刀具护罩25时,长430mm、宽380mm;割草机1的刀具装置2设在机身3的中部时,长450mm、宽380mm;履带式割草机的刀具装置2设在机身3前侧时,且刀具装置2不带刀具护罩25,长400mm、宽380mm;履带式割草机的刀具装置2设在机身3的后部时,且刀具装置2不带刀具护罩25,长350mm、宽380mm。
在一个实施例中,如图24和图25所示,割草机1包括机身3、两个驱动轮7、一个支撑轮8、两个辅助轮9、刀具装置2、驱动装置4。其中,支撑轮8 和辅助轮9均为万向轮。
两个驱动轮7沿横向间隔设在机身3上,驱动装置4设于机身3且与驱动轮7连接,用于带动驱动轮7转动,从而驱动割草机1移动。一个支撑轮8设于机身3上且位于两个驱动轮7的后方,起到支撑作用。
刀具装置2设于机身3的前侧且相对于机身3可浮动,刀具装置2包括定刀11、动刀12、刀具护罩25和刀具驱动组件20,刀具护罩25罩设于定刀11、动刀12和刀具驱动组件20,用于起到防护定刀11和动刀12的作用,还可以保护用户以及动物不受刀片的伤害。
进一步地,定刀11沿所述横向延伸,动刀12沿所述横向延伸且位于动刀12的上方,刀具驱动组件20与动刀12连接,用于驱动动刀12沿横向往复运动,由此动刀12相对于定刀11往复移动,从而实现割草的效果。两个辅助轮9设于刀具护罩25上且位于定刀11和动刀12的前方,当刀具装置2相对于机身3浮动时,两个辅助轮9随刀具护罩25一起浮动,在对刀具装置2实现辅助支撑的同时,可以实时地调整刀具装置2的位置。
割草机1的切割宽度与割草机1的整机宽度的比值大于等于0.6,在刀具装置2不转动或移动时,割草机1的整机高度约为驱动轮7高度。
在一个实施例中,如图26-图29所示,割草机1包括机身3、两个驱动轮7、两个支撑轮8、刀具装置2、驱动装置4。其中,支撑轮8为万向轮。
两个驱动轮7沿横向间隔设在机身3上,驱动装置4设于机身3且与驱动轮7连接,用于带动驱动轮7转动,从而驱动割草机1移动。两个支撑轮8设于机身3上且位于两个驱动轮7的后方,起到支撑作用。
刀具装置2设于机身3的前侧且相对于机身3可浮动,刀具装置2包括定刀11、动刀12、刀具护罩25和刀具驱动组件20,刀具护罩25罩设于定刀11、动刀12和刀具驱动组件20,用于起到防护定刀11和动刀12的作用,还可以保护用户以及动物不受刀片的伤害。
进一步地,定刀11沿所述横向延伸,动刀12沿所述横向延伸且位于动刀12的上方,刀具驱动组件20与动刀12连接,用于驱动动刀12沿横向往复运动,由此动刀12相对于定刀11往复移动,从而实现割草的效果。
割草机1的切割宽度与割草机1的整机宽度的比值大于等于0.6,在刀具装置2不转动或移动时,割草机1的整机高度约为驱动轮7高度。
在一个实施例中,如图27所示,割草机1包括机身3、两个驱动轮7、两 个支撑轮8、刀具装置2、驱动装置4。其中,支撑轮8为万向轮。
两个驱动轮7沿横向间隔设在机身3的后部上,驱动装置4设于机身3且与驱动轮7连接,用于带动驱动轮7转动,从而驱动割草机1移动。两个支撑轮8沿横向间隔设在机身3的前部,即两个支撑轮8位于两个驱动轮7的前方,起导引和支撑作用。
刀具装置2设于机身3的中部,即刀具装置2位于驱动轮7与支撑轮8之间。刀具装置2包括定刀11、动刀12和刀具驱动组件20,定刀11、动刀12位于机身3的中部,使机身3起到防护定刀11和动刀12的作用,还可以保护用户以及动物不受刀片的伤害。定刀11沿所述横向延伸,动刀12沿所述横向延伸且位于动刀12的上方,刀具驱动组件20与动刀12连接,用于驱动动刀12沿横向往复运动,由此动刀12相对于定刀11往复移动,从而实现割草的效果。
割草机1的切割宽度与割草机1的整机宽度的比值大于等于0.6,在刀具装置2不转动或移动时,割草机1的整机高度约为驱动轮7高度。
在一个实施例中,如图28所示,割草机1包括机身3、两个驱动轮7、两个导向轮、两个履带6、刀具装置2、驱动装置4。
两个驱动轮7和两个导向轮一一对应,两个履带6分别绕设在对应的驱动轮7与导向轮上,驱动装置4设于机身3且与驱动轮7连接,用于带动驱动轮7转动以带动履带6移动,从而驱动割草机1移动。
刀具装置2设于机身3的前侧,刀具装置2包括定刀11、动刀12和刀具驱动组件20,定刀11沿所述横向延伸,动刀12沿所述横向延伸且位于动刀12的上方,刀具驱动组件20与动刀12连接,用于驱动动刀12沿横向往复运动,由此动刀12相对于定刀11往复移动,从而实现割草的效果。
割草机1的切割宽度与割草机1的整机宽度的比值大于等于0.6,在刀具装置2不转动或移动时,割草机1的整机高度约为驱动轮7高度。
在一个实施例中,如图29和图30所示,割草机1包括机身3、两个驱动轮7、两个导向轮、两个履带6、刀具装置2、驱动装置4。
两个驱动轮7和两个导向轮一一对应,两个履带6分别绕设在对应的驱动轮7与导向轮上,驱动装置4设于机身3且与驱动轮7连接,用于带动驱动轮7转动以带动履带6移动,从而驱动割草机1移动。
刀具装置2设于机身3的后部且位于两个履带6之间,刀具装置2包括定 刀11、动刀12和刀具驱动组件20,定刀11沿所述横向延伸,动刀12沿所述横向延伸且位于动刀12的上方,刀具驱动组件20与动刀12连接,用于驱动动刀12沿横向往复运动,由此动刀12相对于定刀11往复移动,从而实现割草的效果。
割草机1的切割宽度与割草机1的整机宽度的比值大于等于0.6,在刀具装置2不转动或移动时,割草机1的整机高度约为驱动轮7高度。
根据本发明一个实施例,如图31-图35所示,割草机1包括:机身3、行驶装置5和刀具装置2。
行驶装置5设置在机身3上,刀具装置2设置在机身3的前侧,刀具装置2相对于机身3可浮动,刀具装置2可以根据前方地形相对于机身3浮动,从而可以越过障碍物或进行爬坡。
根据本发明实施例的割草机1,通过将刀具装置2布置在机身3的前侧,使其可以更好地切割到边角位置,提高切割效果;刀具装置2可以根据前方地形相对于机身3浮动,从而越过障碍物或进行爬坡,提高了割草机1对复杂地形的适应能力。
根据本发明的一个实施例,刀具装置2可以使用往复切割刀具,使得切割更安全,切割宽度更宽。
根据本发明的一个实施例,刀具装置2与机身3可枢转地连接,刀具装置2可以根据前方地形情况相对于机身3枢转,从而越过障碍物或进行爬坡,提高了割草机1对复杂地形的适应能力。
根据本发明的一个实施例,割草机1还包括:浮动连接组件,浮动连接组件分别与机身3和刀具装置2连接以使刀具装置2相对于机身3可浮动。
具体地,浮动连接组件的一部分与机身3连接,浮动连接组件的另一部分与刀具装置2连接,且浮动连接组件相对于机身3和刀具装置2中的至少一个可活动,当割草机1在割草时遇到障碍物或是爬坡地形时,刀具装置2可以相对于机身3浮动,实现越障、爬坡功能。
如图31-图33所示,在一些可选的示例中,浮动连接组件包括:可转动的连接轴63,刀具装置2通过连接轴63与机身3可枢转地连接。刀具装置2可以根据前方地形相对于机身3转动,从而越过障碍物或进行爬坡,提高了割草机1对复杂地形的适应能力。其中,连接轴63可以位于主机10中的任一位置, 例如可以绕行驶装置5的轴向旋转。
在又一些可选的示例中,浮动连接组件为连杆机构。例如,浮动连接组件可以为四连杆机构61。
具体地,如图34所示,四连杆机构61包括第一连杆至第四连杆,第一连杆的固设于机身3,第四连杆固设于刀具装置2,第二连杆的两端分别与第一连杆的一端、第四连杆的一端可转动地连接,第三连杆的两端分别与第一连杆的另一端、第四连杆的另一端可转动地连接,四连杆机构61运动时,刀具装置2可以相对于机身3活动,从而实现越障、爬坡功能。
如图35所示,在另一些可选的示例中,浮动连接组件包括:安装座和可移动的推杆621。安装座设于机身3和刀具装置2中的一个上,推杆621的一端与安装座连接,推杆621的另一端与机身3和刀具装置2中的另一个连接。由此,推杆621可以相对于安装座发生移动,从而使刀具装置2相对于机身3活动。
根据本发明的一个实施例,刀具装置2包括:刀具护罩25、刀具组件10和刀具驱动组件20,刀具护罩25与机身3通过浮动连接组件连接且相对于机身3可浮动,刀具驱动组件20用于驱动刀具组件10进行割草,刀具组件10安装在刀具护罩25内。
在一些示例中,刀具组件10在刀具护罩25内的高度可调节。即可以根据不同的割草高度的需求,调节刀具组件10在刀具护罩25内的高度,达到不同高度的割草效果。
在一些示例中,刀具护罩25的前侧下部与其下表面前缘圆弧过渡连接。通过将刀具护罩25的表面设置为圆滑的弧形,便于割草机1在遇到地形变化时,刀具护罩25可以尽快地接触到变化的地形,从而发生旋转,同时还不会破坏地形。
如图31所示,在一些具体的示例中,刀具护罩25的前侧表面沿竖向从上到下逐渐向后延伸,从而在刀具护罩25的前侧形成一个导向面,当割草机1在割草时遇到障碍物或是爬坡地形时,通过刀具护罩25前侧的导向面,使得刀具装置2可以自动顺着障碍物或者是爬坡的方向抬起,从而越过障碍,无需单独的驱动装置进行驱动其转动。
根据本发明进一步的实施例,割草机1还包括越障驱动组件40。越障驱动组件40设置在机身3上,当然越障驱动组件40也可以设置在刀具装置2(例 如,刀具护罩25)上。
其中,越障驱动组件40与浮动连接组件连接,这里的“连接”可以为直接连接,也可以为通过中间媒介间接相连,从而可以驱动刀具装置2(例如,刀具护罩25)相对于机身3活动,使割草机1可以根据地形情况,越过障碍物或进行爬坡。
在一些示例中,割草机1还包括传动机构60,传动机构60分别与越障驱动组件40和浮动连接组件传动连接,从而使越障驱动组件40可以驱动浮动连接组件运行(例如,四连杆机构61的运动、推杆621的移动或者连接轴63的转动),使刀具装置2可以相对于机身3活动,进而越过障碍物或进行爬坡。
在一些可选的示例中,传动机构60可以为带传动机构、齿轮传动机构、蜗轮蜗杆传动机构中的一种,也可以是至少两种传动机构60的组合。
在图32所示的示例中,连接轴63由越障驱动组件40直接驱动,且越障驱动组件40的动力输出轴与连接轴63可拆卸地连接,例如越障驱动组件40的动力输出轴与连接轴63螺纹连接,从而便于安装与更换。
根据本发明进一步的实施例,割草机1还包括:地形识别传感器(图中未示出)和控制模块(图中未示出)。地形识别传感器可以用于检测前方地形是否有障碍物,或是否需要爬坡。控制模块分别与地形识别传感器和越障驱动组件40通讯连接,从而可以根据地形识别传感器检测到的前方地形情况,控制越障驱动组件40的工作。
根据本发明的又一个实施例,浮动连接组件为电动推杆62,电动推杆62安装于机身3和刀具装置2中的一个上,电动推杆62的动力输出端(即推杆的一端)与机身3和刀具装置2中的另一个连接,当电动推杆62运行时,可以驱动刀具装置2相对于机身3活动,从而实现越障、爬坡功能。
在一些示例中,行驶装置5可以为相对布置的两个驱动轮7,驱动轮7通过旋转实现运动,同时刀具护罩25可以支撑在地面,保证割草机1的稳定运行。
在一些可选的示例中,行驶装置5还包括至少一个辅助轮9,从而用于实现平衡。
在另一些可选的示例中,割草机1内置陀螺仪和加速度计(未示出),从而根据割草机1的运行状态实时地调节割草机的平衡性,以保证其平稳运行。
在另一些示例中,行驶装置5可以为履带式行驶装置,刀具护罩25可以相对于地面浮动,避免刀具护罩25的底部损坏地形。
在一个实施例中,如图31所示,割草机1包括:机身3、行驶装置5、刀具装置2、越障驱动组件40、传动机构60、地形识别传感器(图中未示出)和控制模块(图中未示出)。
行驶装置5设置在机身3上,行驶装置5包括两个相对布置的驱动轮7,刀具装置2设置在机身3的前侧,刀具装置2包括刀具护罩25、刀具组件10和刀具驱动组件20。刀具护罩25与机身3通过连接轴63实现可枢转地连接。刀具护罩25的前侧表面沿竖向,从上到下逐渐向后延伸形成弧形,刀具组件10与刀具驱动组件20位于刀具护罩25的前侧,靠近弧形的边缘,刀具驱动组件20用于驱动刀具组件10进行割草,刀具组件10为往复切割刀具。
其中,传动机构60为带传动机构,带传动机构分别与越障驱动组件40和连接轴63传动连接。
在图31示出的示例中,割草机1可以通过刀具装置2与两个驱动轮7共同接触地面,从而保持平衡。
在又一些示例中,行驶装置5还包括至少一个辅助轮9,从而实现至少三点支撑,保证割草机1的平衡。
在另一些示例中,割草机1内置陀螺仪和加速度计,割草机在运行时,只有两个驱动轮7与地面接触,陀螺仪和加速度计可以根据割草机1的运行状态实时地调节割草机的平衡性,以保证其平稳运行。
割草机1工作时,地形识别传感器(例如超声波、图像识别)检测前方地形,例如还可以通过刀具装置2与地形碰撞时刀具驱动组件20电流的改变来识别地形。当遇到障碍物时,刀具护罩25会顺着障碍的方向抬起,从而跨越障碍。当遇到爬坡时,刀具护罩25会顺着爬坡的方向自主浮动,行驶装置5爬坡。
在另一些示例中,当地形识别传感器检测到前方地形为障碍物或爬坡时,可以将信号传递给控制模块,从而控制模块控制越障驱动组件40开始工作,即越障驱动组件40驱动传动机构60传动,带动刀具护罩25旋转以抬高刀具装置2,从而使得割草机1跨越障碍或爬坡。
在一个实施例中,如图32所示,连接轴63由越障驱动组件40直接驱动,越障驱动组件40的动力输出轴与连接轴63可拆卸地连接,其他结构与上述实施例相同。
割草机1工作中,在越障驱动组件40的直接驱动下,实现跨越障碍或爬坡。
在一个实施例中,如图33所示,割草机1通过履带行驶移动,刀具护罩 25可以不接触到地面,从而可以提高安全性能,同时还可以减少行驶过程中的阻力。
在一个实施例中,如图34所示,刀具装置2通过四连杆机构61与机身3实现连接。具体地,四连杆机构61的两个相对布置的连杆分别固定于刀具装置2的刀具护罩25上和机身3上,四连杆机构61的另两个相对布置的连杆分别与上述两个连杆可转动地连接,当前方具有障碍物或需要爬坡时,四连杆机构61开始运行,以带动刀具护罩25向上浮动,从而抬高刀具装置2,使得割草机1跨越障碍物或进行爬坡。
其中,行驶装置5包括两个相对布置的驱动轮7和设在机身3后部的辅助轮9,从而保证割草机1的运行平稳性。
在一个实施例中,如图35所示,机身3上设有电动推杆62,电动推杆62的动力输出端与刀具装置2的刀具护罩25连接,当前方具有障碍物或需要爬坡时,电动推杆62的动力输出端伸出,从而推动刀具护罩25相对于地面向上移动,使得割草机1跨越障碍物或进行爬坡。
Claims (11)
- 一种割草机,包括:机身;刀具驱动组件,包括切割马达,安装于所述机身;刀具组件,安装于所述机身,由所述切割马达驱动,所述刀具组件包括第一切割件和第二切割件,所述第一切割件与所述第二切割件相对往返运动以割草;其特征在于,所述割草机包括闭锁机构,所述刀具组件通过所述闭锁机构可拆卸地安装于所述机身。
- 根据权利要求1所述的割草机,其特征在于,所述闭锁机构包括底盖,安装于机身,以使所述刀具组件的至少一部分夹持在所述底盖与所述机身之间。
- 根据权利要求2所述的割草机,其特征在于,所述闭锁机构包括闭锁元件,设置于所述机身和/或所述底盖,所述闭锁元件在锁定位置和解锁位置之间可活动,在所述锁定位置时所述底盖与所述机身连接,在所述解锁位置时所述底盖与所述机身脱离。
- 根据权利要求3所述的割草机,其特征在于,所述闭锁元件包括卡扣,用于接合所述底盖与所述机身。
- 根据权利要求1所述的割草机,其特征在于,所述闭锁机构包括螺纹连接组件,所述刀具组件通过所述螺纹连接组件安装于所述机身。
- 根据权利要求1所述的割草机,其特征在于,所述刀具驱动组件包括旋转传动元件,与所述切割马达连接,由所述切割马达驱动;所述刀具组件包括接合传动元件,与所述旋转传动元件配接,以使所述切割马达驱动所述刀具组件。
- 根据权利要求6所述的割草机,其特征在于,所述旋转传动元件包括至少一个突起,所述接合传动元件包括凹部,所述凹部接收所述至少一个突起。
- 根据权利要求1所述的割草机,其特征在于,所述第一切割件包括第一刀架和第一刀片,所述第一刀片由所述所述刀具驱动组件驱动,所述第一刀片通过连接件与所述第一刀架可拆卸地连接。
- 根据权利要求8所述的割草机,其特征在于,所述连接件包括固定连接件或活动连接件。
- 根据权利要求9所述的割草机,其特征在于,所述活动连接件包括第一传动件和第二传动件,所述第一传动件包括相对设置的第一端部和第二端部,分别 与所述第一刀片和所述第二切割件活动连接;所述第二传动件与所述第一传动件活动连接,由所述切割马达驱动,带动所述第一刀片相对于所述第二切割件往返运动。
- 根据权利要求1所述的割草机,其特征在于,所述刀具组件包括预紧件,所述预紧件设置于所述第一切割件和所述第二切割件中的至少一个,以使所述第一切割件的至少一部分压紧所述第二切割件。
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CN203152015U (zh) * | 2013-01-30 | 2013-08-28 | 重庆凯米尔汽油机有限公司 | 剪草机割刀总成 |
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CN111093356B (zh) | 2023-01-24 |
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