CN113557842A - Replaceable blade structure for lawn machine - Google Patents

Replaceable blade structure for lawn machine Download PDF

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Publication number
CN113557842A
CN113557842A CN202110778701.8A CN202110778701A CN113557842A CN 113557842 A CN113557842 A CN 113557842A CN 202110778701 A CN202110778701 A CN 202110778701A CN 113557842 A CN113557842 A CN 113557842A
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CN
China
Prior art keywords
lawn mower
replaceable blade
chassis
lawn
cutting edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110778701.8A
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Chinese (zh)
Inventor
张宝斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202110778701.8A priority Critical patent/CN113557842A/en
Publication of CN113557842A publication Critical patent/CN113557842A/en
Pending legal-status Critical Current

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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
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/67—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator
    • A01D34/68—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
    • A01D34/6806—Driving mechanisms
    • A01D34/6818—Motor starting mechanisms
    • 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
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/67—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator
    • A01D34/68—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
    • A01D34/69—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels with motor driven wheels
    • 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
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/73—Cutting apparatus
    • 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
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/73—Cutting apparatus
    • A01D34/733—Cutting-blade mounting means
    • 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
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/82—Other details
    • A01D34/828—Safety devices
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D43/00—Mowers combined with apparatus performing additional operations while mowing
    • A01D43/06—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material
    • A01D43/077—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material with auxiliary means, e.g. fans, for transporting the mown crop
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D43/00—Mowers combined with apparatus performing additional operations while mowing
    • A01D43/06—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material
    • A01D43/077—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material with auxiliary means, e.g. fans, for transporting the mown crop
    • A01D43/0775—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material with auxiliary means, e.g. fans, for transporting the mown crop for airborne lawn-mowers

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Abstract

The invention discloses an interchangeable blade structure for a lawn mower, which comprises the lawn mower and an interchangeable blade device, wherein the lawn mower comprises a chassis of the lawn mower, front wheel shaft assemblies are arranged on two sides of the front end of the chassis of the lawn mower, rear wheel shaft assemblies are arranged on two sides of the rear end of the chassis of the lawn mower, a power device is arranged at the top of the chassis of the lawn mower, the rear wheel shaft assemblies are connected with a self-propelled device, the rear end of the chassis of the lawn mower is connected with a lower push rod and a grass collecting bag, the upper end of the lower push rod is connected with an upper push rod through a bolt, a starting pull rod and a driving pull rod are arranged on the upper push rod, a knife rest is arranged at the bottom of the chassis of the lawn mower, the interchangeable blade is connected with the knife rest through a screw and a nut, and the knife rest is connected with the power device and coaxially rotates. Compared with the prior art, the invention has the advantages that: the straw cutting is labor-saving, the endurance time of the lithium battery can be greatly prolonged, the effect of large-displacement power can be achieved by using gasoline engine power with small displacement, the cost is reduced, and the emission is reduced.

Description

Replaceable blade structure for lawn machine
Technical Field
The invention relates to the technical field of garden tools of lawn mowers, in particular to a blade replaceable structure for a lawn mowers.
Background
The lawn mower is a garden machine for trimming lawn vegetation, and consists of a cutter head, an engine (or a motor), traveling wheels, blades, a push rod, a grass collecting bag and a control pull rod, wherein the cutter head is arranged on a front traveling wheel shaft and a rear traveling wheel shaft, the cutter head is provided with a gasoline engine (or a motor), the output shaft of the gasoline engine (or the motor) is provided with the blades, and the blades and a power shaft rotate coaxially, so that the lawn can be trimmed easily. The cut grass has two removal modes, one is a back row which is directly put into a back bag for collection; the other is side grass discharge, and the waste grass is directly discharged on the lawn from the side of the chassis.
The existing line knife commonly used has the defects that the line knife is low in hardness, easy to wear and damage and high in use cost due to the adoption of medium carbon alloy steel, and the line knife is large in degeneration after heat treatment and difficult to achieve good dynamic balance, so that the lawn mower has the defect of large vibration.
Disclosure of Invention
The invention aims to overcome the technical defects and provides a replaceable blade structure for a lawn mower, wherein a small blade with hardness higher than that of an original straight cutter is installed on the basis of the original straight cutter, the small blade is made of a better material or stainless steel, and a cutting edge can be ground to be sharper, so that the replaceable blade structure is labor-saving in cutting grass, is particularly suitable for a lithium battery, can greatly improve the endurance time of the lithium battery, can achieve the effect of large-displacement power by using small-displacement power for a gasoline engine, reduces the cost and reduces the discharge.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the replaceable blade structure for the lawn mower comprises the lawn mower and a replaceable blade device, wherein the lawn mower comprises a lawn mower chassis, front wheel shaft assemblies are mounted on two sides of the front end of the lawn mower chassis, rear wheel shaft assemblies are mounted on two sides of the rear end of the lawn mower chassis, a power device is mounted at the top of the rear wheel shaft assemblies, the rear wheel shaft assemblies are connected with a self-walking device, the rear end of the lawn mower chassis is connected with a lower push rod and a grass collecting bag, the upper end of the lower push rod is connected with an upper push rod through a bolt, a starting pull rod and a driving pull rod are mounted on the upper push rod, a knife rest is mounted at the bottom of the lawn mower chassis, the replaceable blade is connected with the knife rest, and is fixed on the knife rest through a screw and a nut, and the knife rest is connected with the power device and coaxially rotates.
Furthermore, the structures at the two ends of the knife rest are curved inclined planes, and the wind pressure generated by the inclined planes can discharge grass into the grass collecting bag or outside the grass collecting bag.
Furthermore, the cutting edge of the replaceable blade is sharp, the hardness is high, the energy consumption is low during cutting, and the replaceable blade is suitable for lithium battery products.
Furthermore, the replaceable blade is integrally flat-plate-shaped, and the cutting edges comprise a flat cutting edge, a straight cutting edge, an arc-shaped cutting edge and an arc-shaped tooth surface cutting edge.
Further, the blade of interchangeable blade can be according to cutting different types of lawn, select the category of the blade of different sharpness to adapt to the lawn that the rhizome thickness is different, petrol class lawn mower (power reserve is great) and the thick lawn of rhizome, can select duller blade, lithium class lawn mower can select sharper blade.
Furthermore, the tool rest is formed by adopting common materials, does not need heat treatment, has no deformation, and has small dynamic balance error and small vibration.
Further, the replaceable blade and blade carrier may be used in rotary cutters for gasoline or electric walk-behind, ride-on mowers.
Furthermore, the tool rest is provided with three bolt holes at the joint of the replaceable blade and the nut through a screw, the two bolt holes are precisely matched to fix the replaceable blade on the tool rest to form a fixing hole for reducing the vibration effect, the middle bolt hole is a safety hole for safety protection, the safety hole is in the shape of a waist hole, and the fixing hole is asymmetrical to the safety hole in size, so that misloading or reverse loading cannot be caused.
Compared with the prior art, the invention has the advantages that: the invention installs the knife rest with the replaceable blade, and does not need heat treatment after molding, thereby having no great deformation and good balance effect; the replaceable blade can be made into cutters with flat cutting edges, arc tooth surface cutting edges, arc cutting edges and cutting edges with different sharpness degrees according to different lawn types; the blade is integrally flat, so that the blade is easy to process and repair; the blade is convenient to grind each time, and the use cost is low; the blade both sides all have the blade, and life improves 2 times at least, practices thrift the cost. There are 3 fixing bolt on the device, two holes are precision fit, fix the blade on the knife rest and use, can play the effect that reduces the vibration, and there is the waist hole blade and the centre of fixed bolster junction, plays the safety protection effect: blade during operation, if touch hard thing, the bolt on both sides can be cut off, but middle bolt is owing to be the waist hole, can make and produce between blade and the fixed bolster fixed surface and slide, make interchangeable blade can not the departure, the operator has been protected, also accord with safety standard requirement, except improving the cutting effect, arrange the grass effect by the blade fixed bolster completion, only need change interchangeable blade at every turn can, the support need not be changed, greatly reduced maintenance work volume like this, in order to prevent the blade from turning over the dress, size asymmetry between blade fixed orifices size and the safety hole, can not cause misloading or anti-dress.
Drawings
Fig. 1 is a schematic structural view a of the lawn mower of the present invention.
Fig. 2 is a schematic structural view b of the lawn mower of the present invention.
Fig. 3 is a schematic view of the replaceable blade of the present invention.
Fig. 4 is a structural schematic diagram of the arc-shaped cutting edge replaceable blade.
Fig. 5 is a schematic structural diagram of the replaceable blade with the arc-shaped tooth-surface cutting edge.
As shown in the figure: 1. the lawn mower comprises a replaceable blade, a blade carrier, a lawn mower chassis, a front wheel shaft assembly, a power device, a rear wheel shaft assembly, a lower push rod, a grass collecting bag, a starting pull rod, a driving pull rod, 11, a grass collecting bag, a self-walking device, 13, screws, 14, nuts, 15, fixing holes, 16 and safety holes.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The replaceable blade structure for the lawn mower comprises a lawn mower and a replaceable blade device, wherein the lawn mower comprises a lawn mower chassis 3, front wheel shaft assemblies 4 are mounted on two sides of the front end of the lawn mower chassis 3, rear wheel shaft assemblies 6 are mounted on two sides of the rear end of the lawn mower chassis 3, a power device 5 is mounted at the top of the rear end of the lawn mower chassis, the rear wheel shaft assemblies 6 are connected with a self-walking device 12, the rear end of the lawn mower chassis 3 is connected with a lower push rod 7 and a grass collecting bag 11, the upper end of the lower push rod 7 is connected with an upper push rod 8 through a bolt, a starting pull rod 9 and a driving pull rod 10 are mounted on the upper push rod 8, a blade carrier 2 is mounted at the bottom of the lawn mower chassis 3, the replaceable blade 1 is connected with the blade carrier 2, the replaceable blade 1 is fixed on the blade carrier 2 through a screw 13 and a nut 14, and the blade carrier 2 is connected with the power device 5 and rotates coaxially.
The structure at the two ends of the knife rest 2 is a curved inclined plane, and the wind pressure generated by the inclined plane can discharge grass into the grass collecting bag 11 or outside the grass collecting bag.
The cutting edge of the replaceable blade 1 is sharp, the hardness is high, the energy consumption is low during cutting, and the replaceable blade is suitable for lithium battery products.
The replaceable blade 1 is integrally flat-plate-shaped, and the cutting edges comprise a flat cutting edge, a straight cutting edge, an arc-shaped cutting edge and an arc-shaped tooth surface cutting edge.
The cutting edge of the replaceable blade 1 can be selected according to the types of lawns with different cutting degrees, so that the replaceable blade is suitable for lawns with different thicknesses of roots and stems, a gasoline lawn mower (with large power reserve) and lawns with thick roots and stems, a blunt cutting edge can be selected, and a lithium lawn mower can select a sharp cutting edge.
The tool rest 2 is formed by adopting common materials, does not need heat treatment, has no deformation, small dynamic balance error and small vibration.
The replaceable blade 1 and the replaceable blade holder 2 can be applied to rotary cutters used by gasoline or electric walking and riding mowers.
The tool rest 2 is provided with three bolt holes at the joint of the replaceable blade 1 through a screw 13 and a nut 14, the two bolt holes are precisely matched to fix the replaceable blade 1 on the tool rest 2 to form a fixing hole 15 for reducing vibration, the middle bolt hole is a safety hole 16 for safety protection, the safety hole 16 is a waist hole, and the fixing hole 15 and the safety hole 16 are asymmetrical in size and cannot be mistakenly assembled or reversely assembled.
When the invention is implemented specifically, the replaceable blade is connected in the fixing hole and the safety hole at the two ends of the blade carrier through the nut and the screw, then the blade carrier is arranged on the chassis of the lawn mower or is applied to the rotary cutter used by gasoline or electric walking and riding mowers, the blade carrier of the replaceable blade does not need heat treatment after being formed, so that the blade carrier has no great deformation and good balance effect; the replaceable blade can be made into cutters with flat cutting edges, zigzag cutting edges, arc cutting edges and cutting edges with different sharpness degrees according to different lawn types; the blade is integrally flat, so that the blade is easy to process and repair; the blade is convenient to grind each time, and the use cost is low; the blade both sides all have the blade, and life improves 2 times at least, practices thrift the cost.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. The utility model provides a lawn machine interchangeable blade structure which characterized in that: the lawn mower comprises a lawn mower and a replaceable blade device, wherein the lawn mower comprises a lawn mower chassis (3), front wheel shaft assemblies (4) are arranged on two sides of the front end of the lawn mower chassis (3), rear wheel shaft assemblies (6) are arranged on two sides of the rear end of the lawn mower chassis (3), a power device (5) is arranged at the top of the rear wheel shaft assemblies, the rear wheel shaft assemblies (6) are connected with a self-propelled device (12), the rear end of the lawn mower chassis (3) is connected with a lower push rod (7) and a grass collecting bag (11), the upper end of the lower push rod (7) is connected with an upper push rod (8) through a bolt, a starting pull rod (9) and a driving pull rod (10) are arranged on the upper push rod (8), a knife rest (2) is arranged at the bottom of the lawn mower chassis (3), the replaceable blade (1) is connected with the knife rest (2), and the replaceable blade (1) is fixed on the knife rest (2) through a screw (13) and a nut (14), the tool rest (2) is connected with the power device (5) and rotates coaxially.
2. The replaceable blade structure for lawn mower of claim 1, wherein: the structure at the two ends of the knife rest (2) is a curved inclined plane, and the wind pressure generated by the inclined plane can discharge grass into or out of the grass collecting bag (11).
3. The replaceable blade structure for lawn mower of claim 1, wherein: the cutting edge of the replaceable blade (1) is sharp, the hardness is high, the energy consumption during cutting is low, and the replaceable blade is suitable for lithium battery products.
4. The replaceable blade structure for lawn mower of claim 1, wherein: the replaceable blade (1) is integrally flat-plate-shaped, and the cutting edges comprise a flat cutting edge, a straight cutting edge, an arc-shaped cutting edge and an arc-shaped tooth surface cutting edge.
5. The replaceable blade structure for lawn mower of claim 4, wherein: the cutting edge of interchangeable blade (1) can be according to cutting different types of lawn, select the category of the cutting edge of different sharpness to adapt to the lawn that the rhizome thickness is different, petrol class lawn mower (power deposit is great) and the thick lawn of rhizome, can select duller cutting edge, lithium class lawn mower can select sharp cutting edge.
6. The replaceable blade structure for lawn mower of claim 1, wherein: the tool rest (2) is formed by adopting common materials, does not need heat treatment, has no deformation, small dynamic balance error and small vibration.
7. The replaceable blade structure for lawn mower of claim 1, wherein: the replaceable blade (1) and the replaceable blade holder (2) can be applied to rotary cutters used for gasoline or electric walking and riding mowers.
8. The replaceable blade structure for lawn mower of claim 1, wherein: the utility model discloses a safety protection tool rest, including tool rest (2), removable blade (1), bolt hole (15), safety hole (16), the form of safety hole (16) is waist hole, fixed orifices (15) and safety hole (16) size asymmetry can not cause misloading or anti-dress, the bolt hole (15) that the effect that reduces the vibration was used for fixing removable blade (1) on tool rest (2) through screw (13) and nut (14) junction on tool rest (2), two bolt holes are precision fit for.
CN202110778701.8A 2021-07-09 2021-07-09 Replaceable blade structure for lawn machine Pending CN113557842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110778701.8A CN113557842A (en) 2021-07-09 2021-07-09 Replaceable blade structure for lawn machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110778701.8A CN113557842A (en) 2021-07-09 2021-07-09 Replaceable blade structure for lawn machine

Publications (1)

Publication Number Publication Date
CN113557842A true CN113557842A (en) 2021-10-29

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ID=78164291

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110778701.8A Pending CN113557842A (en) 2021-07-09 2021-07-09 Replaceable blade structure for lawn machine

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114303480A (en) * 2022-01-10 2022-04-12 广东运昌隆后勤科技有限公司 Device for removing and collecting alien plants in residential area

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0244041A1 (en) * 1986-04-29 1987-11-04 Multinorm B.V. Mowing device with improved disc configuration and blade attachment
WO1996005719A2 (en) * 1994-08-22 1996-02-29 Briggs & Stratton Corporation Improved battery-powered lawn cutting system
CN2267626Y (en) * 1996-10-14 1997-11-19 平顶山市园林科学研究所 Multifunction electric lawn mower
US5910091A (en) * 1996-09-17 1999-06-08 Honda Giken Kogyo Kabushiki Kaisha Electric lawn mower

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0244041A1 (en) * 1986-04-29 1987-11-04 Multinorm B.V. Mowing device with improved disc configuration and blade attachment
WO1996005719A2 (en) * 1994-08-22 1996-02-29 Briggs & Stratton Corporation Improved battery-powered lawn cutting system
US5910091A (en) * 1996-09-17 1999-06-08 Honda Giken Kogyo Kabushiki Kaisha Electric lawn mower
CN2267626Y (en) * 1996-10-14 1997-11-19 平顶山市园林科学研究所 Multifunction electric lawn mower

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114303480A (en) * 2022-01-10 2022-04-12 广东运昌隆后勤科技有限公司 Device for removing and collecting alien plants in residential area
CN114303480B (en) * 2022-01-10 2023-06-27 广东运昌隆后勤科技有限公司 District miscellaneous plant clears away collection device

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Application publication date: 20211029