CN209477418U - Electric circular saw - Google Patents
Electric circular saw Download PDFInfo
- Publication number
- CN209477418U CN209477418U CN201822099107.2U CN201822099107U CN209477418U CN 209477418 U CN209477418 U CN 209477418U CN 201822099107 U CN201822099107 U CN 201822099107U CN 209477418 U CN209477418 U CN 209477418U
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- China
- Prior art keywords
- circular saw
- motor
- electric circular
- handle
- receiving portion
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/16—Hand-held sawing devices with circular saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/04—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/12—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of drives for circular saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D59/00—Accessories specially designed for sawing machines or sawing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D59/00—Accessories specially designed for sawing machines or sawing devices
- B23D59/02—Devices for lubricating or cooling circular saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
The utility model discloses a kind of electric circular saws, comprising: saw blade extends in a cutting planes；Output shaft, for installing saw blade；Motor, for driving output shaft to rotate around first axle；Shell is formed with the first receiving portion for accommodating motor；Battery pack, for powering to motor；Wherein, the first receiving portion is arranged in the first accommodating chamber around the first accommodating chamber, motor is formed with；Shell further include: the handle for holding for user, the one end of handle in their extension direction connect the first receiving portion；For removably combining the engaging portion of battery pack；Wherein, engaging portion is formed in the other end on the extending direction of handle.The balance quality of the electric circular saw is good.
Description
Technical field
The utility model relates to a kind of electric tools, and in particular to a kind of electric circular saw.
Background technique
Electric circular saw generally includes shell, saw blade, shield, bottom plate, motor and power supply device, wherein in existing electricity circle
In saw, motor is generally arranged at the side of saw blade, this center of gravity for resulting in entire electric circular saw is located at the side of saw blade, and center of gravity with
The distance between symmetrical plane of handle portion is bigger, is difficult to improve so as to cause the balance quality of electric circular saw.
Utility model content
To solve the deficiencies in the prior art, the electric circular saw good the purpose of this utility model is to provide a kind of balance quality.
In order to achieve the above objectives, the utility model adopts the following technical solutions: a kind of electric circular saw, comprising: saw blade,
Extend in one cutting planes；Output shaft, for installing saw blade；Motor, for driving output shaft to rotate around first axle；Shell
Body is formed with the first receiving portion for accommodating motor；Battery pack, for powering to motor；Wherein, the first receiving portion surrounds shape
At there is the first accommodating chamber, motor is arranged in the first accommodating chamber；Shell further include: the handle for holding for user, handle exist
One end on its extending direction connects the first receiving portion；For removably combining the engaging portion of battery pack；Wherein, engaging portion shape
At in the other end on the extending direction of handle.
Further, electric circular saw further include: bottom plate is formed with the base plate plane for contacting with workpiece；Bottom plate is also formed
Have for saw blade at least partially across opening；When electric circular saw has maximum depth of cut, saw blade passes through effective cutting part of bottom plate
The size divided is maximum；Wherein, when electric circular saw has maximum depth of cut, motor, handle and battery pack are where base plate plane
Plane in orthographic projection be point-blank arranged successively.
Further, orthographic projection of the motor in cutting planes is located at except orthographic projection of the saw blade in cutting planes.
Further, motor is distributed in the two sides of cutting planes.
Further, engaging portion is distributed in the two sides of cutting planes.
Further, saw blade is circular saw blade, and motor includes the motor shaft that can be rotated using second axis as axis, and motor shaft turns
The first axle that dynamic second axis is rotated with output shaft is parallel to each other；Wherein, the distance between first axle and second axis
Greater than the radius of circular saw blade.
Further, electric circular saw further include: transmission device realizes the transmitting of power between motor and output shaft；Circuit
Board group part, the first circuit board including the output power for controlling motor；Shell further include: the second receiving portion, formation are used for
Accommodate the second accommodating chamber of transmission device；Transmission device is arranged in the second accommodating chamber；Handle is in the first receiving portion and engaging portion
Upside connect both, the second receiving portion connects both with the downside of engaging portion in the first receiving portion.
Further, first circuit board is arranged in the second accommodating chamber；Circuit board assemblies further include being arranged in handle
Second circuit board.
Further, electric circular saw further include: fan is connected to motor；Fan is arranged in the first accommodating chamber.
Further, shell further include: cover assembly, including determine shield and can relative to determine shield rotate dynamic shield；It is dynamic
Shield and determining is formed with one and opens wide forward so that saw blade touches the opening of workpiece between shield, the first receiving portion is arranged in handle
The rear end of handle is arranged in the front end of hand, engaging portion.
The structure having the beneficial effect that through reasonable Arrangement electric circular saw of the utility model, especially optimization motor, shell
The isostructural spatial arrangement of body, handle, so that symmetrical plane of the center of gravity of the electric circular saw close to handle portion, so that electric circular saw is flat
The performance that weighs is good.
Detailed description of the invention
Fig. 1 is the perspective view of the electric circular saw of the first embodiment of the utility model；
Fig. 2 is the perspective view of another angle of the electric circular saw in Fig. 1；
Fig. 3 is the main view of the electric circular saw in Fig. 1；
Fig. 4 is the rearview of the electric circular saw in Fig. 1；
Fig. 5 is the top view of the electric circular saw in Fig. 1；
Fig. 6 is sectional view of the electric circular saw in Fig. 5 along line A-A；
Fig. 7 is sectional view of the electric circular saw in Fig. 5 along line B-B；
Fig. 8 is main view of the electric circular saw after battery pack is removed in Fig. 3；
Fig. 9 is the rearview of electric circular saw in Fig. 4 after removal after housing section；
Figure 10 is the perspective view of structure shown in Fig. 9；
Figure 11 is the perspective view of another angle of structure shown in Fig. 9；
Figure 12 is perspective view of the structure shown in Figure 11 after removing heat sink；
Figure 13 is the explosive view of the electric circular saw in Fig. 1；
Figure 14 is the perspective view of another angle of structure shown in Figure 13；
Figure 15 is the rearview of the electric circular saw housing section after removal of second embodiment；
Figure 16 is the perspective view of the electric circular saw housing section after removal of 3rd embodiment；
Figure 17 is the rearview of the electric circular saw housing section after removal of fourth embodiment；
Figure 18 is the main view of the electric circular saw of the 5th embodiment；
Figure 19 is the main view of the electric circular saw of sixth embodiment；
Figure 20 is the main view of the electric circular saw of the 7th embodiment；
Figure 21 is the main view of the electric circular saw of the 8th embodiment.
Specific embodiment
The electric circular saw 100 of first embodiment shown in FIG. 1 can be used for cutting timber, fiberboard and plastics etc..Such as Fig. 1
With shown in Fig. 7, electric circular saw 100 includes: shell 11, output shaft 121, saw blade 122, bottom plate 13, motor 14, power supply device 15.Its
In, for shell 11 for accommodating the parts such as motor 14, motor 14 is used to provide power source, and output shaft 121 can be driven with first
Axis 101 is that axis is rotated with output power.For saw blade 122 for cutting workpiece, bottom plate 13 is formed with the bottom for contacting with workpiece
Plate plane 131.Power supply device 15 is used to power for motor 14, and it can also be alternating current that power supply device 15, which can be battery pack 151,
Source line.
Technical solution of the present invention for convenience of explanation, also define upside as shown in Figure 1, downside, front side, rear side,
Left and right side.
As shown in Figures 2 to 7, shell 11 includes: handle 111, the first receiving portion 112, engaging portion 113 and the second receiving portion
114.Handle 111 be used for for user hold, handle 111 also about the first plane 102 be symmetrical arranged, first plane 102 with it is defeated
The first axle 101 that shaft 121 rotates is mutually perpendicular to.Handle 111 has the first of the both ends being located on its extending direction
Hold 111a and second end 111b.Trigger 111c and safety switch 111d, trigger 111c and handle are additionally provided on handle 111
Hand 111, which is constituted, to be flexibly connected, and when user holds handle 111, the hand of the gripping of the user handle 111 can trigger trigger
111c is to start electric circular saw 100, and safety switch 111d is arranged on handle 111 or near handle 111, and safety switch 111d is used
In trigger 111c to be locked in the position that do not triggered by user, to prevent the accidental activation of electric circular saw 100, user is protected
It will not come to harm.
First end 111a on the extending direction of handle 111 is arranged in first receiving portion 112, and the first receiving portion 112 includes setting
It sets at first of the left side of the first plane 102 and is arranged in second of right side of the first plane 102.First receiving portion 112
It is also formed with the first accommodating chamber 112a, motor 14 is arranged in the first accommodating chamber 112a.The shape of the outer surface of first receiving portion 112
Shape can be designed to be suitable for the structure of user's gripping, and in other words the first receiving portion 112 can also be used as holds for user
Secondary handle, in this way, when the user's operation electric circular saw 100, the hand of user holds handle 111, and another hand holds the
One receiving portion 112 enables a user to more stable gripping electric circular saw 100, simultaneously as the first receiving portion 112 can either
For accommodating motor 14 and can be held for user, thus electric circular saw 100 without be individually in addition arranged again one be used for for
The secondary handle that family is held, so as to greatly save manufacturing cost, while also reducing the volume of electric circular saw 100, reduces
The weight of electric circular saw 100.First receiving portion 112 is distributed in the two sides of the first plane 102, to be conducive to entire electric circular saw
100 center of gravity is arranged in the direction perpendicular to the first plane 102 closer to the first plane 102.Such as in the present embodiment,
The distance between the center of gravity of electric circular saw 100 and the first plane 102 are more than or equal to 0 and are less than or equal to 10mm, further, electric circular saw
The distance between 100 center of gravity and the first plane 102 are more than or equal to 0 and are less than or equal to 5mm.When the center of gravity of entire electric circular saw 100
When being arranged close to the position of the first plane 102, user is more stable when holding electric circular saw 100, and user is in operation electricity
When annular saw 100, complete machine is also more balanced, and is shaken smaller.
The second end 111b on the extending direction of handle 111 is arranged in engaging portion 113, in other words, engaging portion 113 and
One receiving portion 112 is separately positioned on the both ends on the extending direction of handle 111.Engaging portion 113 is used to combine and supply to electric circular saw 100
The power supply device 15 of electricity.In the present embodiment, power supply device 15 is specially battery pack 151.Engaging portion 113 is for dismountable
In conjunction with battery pack 151, battery pack 151 can be powered at installation to engaging portion 113 to motor 14.Engaging portion 113 connects
There is electrical energy inputs (not shown go out), electrical energy inputs with the power output terminal in battery pack 151 for connecting.At this
In embodiment, engaging portion 113 is also symmetrical arranged about the first above-mentioned plane 102, and then is installed to the battery of engaging portion 113
Packet 151 can be also symmetrical arranged about the first plane 102, so that the center of gravity for being further conducive to entire electric circular saw 100 is close
The setting of first plane 102, and then be conducive to user's more stable operation electric circular saw 100.First receiving portion 112,111 and of handle
Engaging portion 113 is arranged successively on 103 direction of first straight line perpendicular to first axle 101, and handle 111 is located at first and holds
It receives between portion 112 and engaging portion 113, the first receiving portion 112 and engaging portion 113 are located at the two sides of handle 111 in other words, to have
Conducive to so that the center of gravity of entire electric circular saw 100 perpendicular to first axle 101 and is being parallel to close on the direction of the first plane 102
Handle 111 is arranged, and then improves the balance quality of electric circular saw 100.It should be noted that the first receiving portion 112, handle 111
It is arranged successively on 103 direction of first straight line with engaging portion 113, does not limit any one in them strictly in first straight line
103 sides upwardly extend, as long as they seem substantially point-blank on the whole, it can think the first receiving portion 112,
Handle 111 and engaging portion 113 are arranged successively on 103 direction of first straight line.In the present embodiment, output shaft 121 is electric
Machine 14 can rotate when driving around first axle 101, and engaging portion 113 and the first receiving portion 112 are separately positioned on one by first
The two sides of axis 101 and the second plane 107 perpendicular to the first plane 102.More specifically, the first receiving portion 112 is arranged in handle
The left side of hand 111 that is to say that the side of 100 direction of advance of electric circular saw is arranged in the first receiving portion 112, and the setting of engaging portion 113 exists
The side of the close user of electric circular saw 100 is arranged in the right side of handle 111, in other words, engaging portion 113.
As shown in figures 4 and 9, the rear side of saw blade 122 is arranged in the second receiving portion 114, and the second receiving portion 114 is formed with
Two accommodating chamber 114a.Handle 111 is connected to the first receiving portion 112 and engaging portion 113,114 edge of the second receiving portion in one direction
Another direction is connected to the first receiving portion 112 and engaging portion 113.Second receiving portion 114 is additionally arranged at the downside of handle 111.
Still further, handle 111 is connected to both in the upside of the first receiving portion 112 and engaging portion 113, the second receiving portion
114 are connected to both in the downside of the first receiving portion 112 and engaging portion 113.
As shown in Fig. 1, Figure 13 and Figure 14, shell 11 can also be split as frontal housing portion 115, rear housing section 116 and in
Between housing section 117, wherein frontal housing portion 115 is arranged in the front side in middle casing portion 117, and rear housing section 116 is arranged in middle case
The rear side in body portion 117, their threes docking form entire shell 11.Wherein, handle 111 can be by frontal housing portion 115 in
Between housing section 117 dock, engaging portion 113 can also be docked by frontal housing portion 115 and middle casing portion 117, first
Receiving portion 112 can be docked by frontal housing portion 115, middle casing portion 117 and rear housing section 116, the second receiving portion 114
It can be docked by middle casing portion 117 and rear housing section 116.Frontal housing portion 115, rear housing section 116 and middle casing portion
Their threes are fixed as an entirety by screw by 117.
As shown in fig. 7, output shaft 121 is for installing saw blade 122, output shaft 121 is in opposite shell 11 with first axle 101
To drive saw blade 122 to cut workpiece when axis rotation.Output shaft 121 extends along 101 direction of first axle.Saw blade 122 is circular saw
Piece, the circular saw blade is with first axle 101 for center line.Saw blade 122 extends in a cutting planes, and saw blade 122 is being cut
The cut surface generated when workpiece also extends in cutting planes.Cutting planes are mutually perpendicular to first axle 101, cutting planes with
First plane 102 is parallel to each other.
As shown in figures 1 to 6, be also formed on bottom plate 13 for saw blade 122 at least partially across opening 132 so that saw
Piece 122 can extend out to the downside of base plate plane 131.When electric circular saw 100 has maximum depth of cut, saw blade passes through bottom plate 13
The size of effective cut portion is maximum.Wherein, when electric circular saw 100 has maximum depth of cut, motor 14, handle 111 and electricity
Orthographic projection of the pond packet 151 in the plane where base plate plane 131 is point-blank arranged successively.It should be noted that electric
The orthographic projection of machine 14, handle 111 and battery pack 151 in the plane where base plate plane 131 refers to motor 14,111 and of handle
The projection line of battery pack 151 is each perpendicular to the plane where base plate plane 131.
Furthermore, in order to improve the balance quality of electric circular saw 100, orthographic projection of the motor 14 in cutting planes is located at
Except orthographic projection of the saw blade 122 in cutting planes, it is flat in cutting that orthographic projection of the handle 111 in cutting plane is located at saw blade 122
Except orthographic projection in face, orthographic projection of the battery pack 151 in cutting planes also is located at positive throwing of the saw blade 122 in cutting planes
Except shadow.First plane 102 overlaps with cutting planes as approximately the same plane.
If 6 to shown in Figure 11, motor 14 can be brushless motor 14, and motor 14 includes that can be turned with second axis 104 for axis
Dynamic motor shaft 141,101 side of first axle that 104 direction of second axis that motor shaft 141 rotates also is rotated with output shaft 121
To being parallel to each other.When motor 14 is arranged in the first accommodating chamber 112a and the installation of battery pack 151 is to engaging portion 113, motor 14
The both ends on the extending direction of handle 111 are separately positioned on battery pack 151, in other words handle 111 is arranged in 14 He of motor
Between battery pack 151, to be conducive to improve the balance quality of electric circular saw 100.In the present embodiment, motor 14 is distributed on
The two sides of first plane 102 and motor 14 are also distributed about the two sides of cutting planes, in other words the first plane 102 and cutting planes
Pass through motor 14, avoid motor 14 be arranged in the first plane 102 or cutting planes side and caused by user cannot put down
The problem of steady operation electric circular saw 100.The diameter of motor 14 in 45mm between 65mm, the rated power of electric circular saw 100 with
The ratio of the diameter of motor 14 is more than or equal to 25W/mm and is less than or equal to 35W/mm, and still further, which is 30W/mm.
In the present embodiment, battery pack 151 can be inserted along 105 direction of second straight line to engaging portion 113, the second straight line
101 direction of first axle that 105 directions are rotated with output shaft 121 is mutually perpendicular to.In base plate plane 131 and 101 phase of first axle
When the part maximum for the downside that mutually parallel and saw blade 122 extend out to base plate plane 131, the inserting of battery pack 151 to engaging portion 113
Intersect with the inclination of base plate plane 131 in 105 direction of second straight line.Battery pack 151 is at inserting to engaging portion 113,151 quilt of battery pack
It is distributed in the two sides of the first plane 102 and battery pack 151 is also distributed about the two sides of cutting planes, in other words the first plane 102
Pass through battery pack 151 with cutting planes, avoid battery pack 151 be arranged in the first plane 102 or cutting planes side and
Caused by user the problem of cannot smoothly operating electric circular saw 100.Still further, battery pack 151 is also flat about first
Face 102 is symmetrical arranged, to be conducive to improve the balance quality of electric circular saw 100.In addition, in the present embodiment, first accommodates
Portion 112 and engaging portion 113 are separately positioned on the two sides of the second plane 107, in this way, when the inserting of battery pack 151 to engaging portion 113
When, motor 14 and battery pack 151 are separately positioned on the two sides of the second plane 107.First receiving portion 112, handle 111 and engaging portion
113 are arranged successively on 103 direction of first straight line perpendicular to first axle 101, in this way, when battery pack 151 inserts extremely
When engaging portion 113, motor 14, handle 111 and battery pack 151 are also arranged successively on 103 direction of first straight line substantially.It can manage
Solution, in other embodiments, motor 14, handle 111 and battery pack 151 can also be at one around the saw blade 122 and with first
Axis 101 be center line circumferencial direction on be arranged successively.
In the present embodiment, engaging portion 113 is distributed on the two sides of the first plane 102 and engaging portion 113 is also distributed about
The two sides of cutting planes, in other words the first plane 102 and cutting planes avoid engaging portion 113 from being arranged by engaging portion 113
In the side of the first plane 102 or cutting planes and caused by user the problem of cannot smoothly operating electric circular saw 100.
In the present embodiment, shell 11 further includes cover assembly 16.Cover assembly 16 includes determining shield 161 and dynamic shield
161, determine shield 161 and fixed with respect to shell 11, moving shield 161 relative to shell 11 can be axis rotation with first axle 101.Determine shield
161 are fixedly connected with the composition of shell 11, determine the upside that shield 161 is additionally arranged at base plate plane 131.Dynamic shield 161 and shell 11
Constituting with first axle 101 is the rotation connection of axis, and dynamic shield 161 at least partly extend out to the downside of base plate plane 131.Dynamic shield
Cover 161 when rotating relative to shell 11 can to move shield 161 and determine generation one between shield 161 that saw blade 122 is exposed
Notch 163, with the rotation of dynamic shield 161, notch 163 is gradually increased.In the present embodiment, motor 14 is also located at saw blade
122 upside, still further, motor 14 also are located at the upside for determining shield 161.In the present embodiment, notch 163 and electricity
The same side of the second plane 107 is arranged in machine 14, and battery pack 151 is located at the other side of the plane.
The distance between the first axle 101 that the second axis 104 and output shaft 121 that motor 14 rotates rotate is greater than circle
The radius of saw blade 122, still further, the distance between second axis 104 and first axle 101 are more than or equal to 50mm and small
In being equal to 120mm, this makes the distance between motor 14 and output shaft 121 larger, need exist in motor shaft 141 and output
The transmission device 17 of transmitting for realizing power is set between axis 121.
As shown in Fig. 7 to Figure 12, transmission device 17 includes V belt translation component 171 and gear drive group 172, it is of course possible to
Understand, in other embodiments, transmission device 17 can also only include V belt translation component 171 or only include gear drive group
172.Specifically, in the present embodiment, the second receiving of the second receiving portion 114 formation is arranged in V belt translation component 171
In chamber 114a, V belt translation component 171 is specifically included: first pulley 171a, the second belt wheel 171b, transmission belt 171c and jackshaft
171d.First pulley 171a is fixedly connected with the composition of motor shaft 141, and the second belt wheel 171b and jackshaft 171d constitute fixed connect
It connects, transmission belt 171c is stretched on first pulley 171a and the second belt wheel 171b, to realize the transmitting of power.Jackshaft 171d
Extend along 106 direction of third axis for being parallel to first axle 101, when motor shaft 141 rotates, transmission belt 171c driving second
Belt wheel 171b rotation, the second belt wheel 171b drive jackshaft 171d together with third axis 106 for axis rotation.Gear drive group
172 include: the first gear 172a being fixedly connected with jackshaft 171d and the second gear 172b connecting with output shaft 121,
The power that first gear 172a can export jackshaft 171d is transferred to output shaft 121, to drive output shaft 121 with first
Axis 101 is axis rotation.In the present embodiment, first gear 172a and second gear 172b is intermeshed, it will be understood that
Can also be arranged in other embodiments, between first gear 172a and second gear 172b user realized between both it is dynamic
The gear of the transmitting of power.
As shown in figure 9, electric tool further includes so that the locking piece 123 that the rotation of output shaft 121 is locked, locking piece
123 cooperate with the part that any one in transmission device 17 rotates can be realized output shaft when locking the rotation of the part
The locking of 121 rotation or locking piece 123 can also be directly with motor shaft 141 or the cooperation of output shaft 121 so that outputs
The rotation of axis 121 is locked.And in the present embodiment, lock slots 171e, lock slots 171e are formed on the second belt wheel 171b
Along the radially-inwardly recess perpendicular to third axis 106.The setting of 123 part of locking piece is formed by the in the second receiving portion 114
In two accommodating chamber 114a, locking piece 123 is formed with the locking projections 123a that can be embedded in lock slots 171e, and locking piece 123 can be opposite
Shell 11 rotates.User's operation locking piece 123 relative to shell 11 rotate when, locking projections 123a be embedded in lock slots 171e in from
And the rotation of the second belt wheel 171b is locked, and then the rotation of output shaft 121 is locked.
As shown in figures 12 and 14, in the present embodiment, circuit board assemblies 18 include: first circuit board 181 and second
Circuit board 182, the control circuit of electric circular saw 100 can be partially arranged on first circuit board 181, part is arranged in second circuit
On plate 182, the size of first circuit board 181 and second circuit board 182 can be made smaller in this way, to avoid all
Control circuit setting cause on a circuit board circuit board size it is larger caused by be not easy to the problem of circuit board is set,
And then suitable position first circuit board 181 and second circuit board 182 being arranged in shell 11 can be convenient for.Further
For, first circuit board 181 is used to control the output power of motor 14, and second circuit board 182 can be used for controlling battery pack
151, it is not limited thereto certainly.
In the present embodiment, first circuit board 181, which is arranged, is formed by the second accommodating chamber 114a in the second receiving portion 114
Interior, first circuit board 181 extends along a plane perpendicular to first axle 101.Still further, transmission component and motor
14 are arranged in the ipsilateral of first circuit board 181, and more specifically, the second belt wheel 171b is arranged in first circuit board 181 and first
Between belt wheel 171a.Second circuit board 182 is arranged at the engaging portion 113 of one end of handle 111, and second circuit board 182 exists
Extend in one plane parallel with 105 direction of second straight line and parallel with 101 direction of first axle.In this way, can be made
One circuit board 181 and second circuit board 182 can efficiently utilize the inner space of shell 11, so as to be conducive to reduce shell
The size of body 11.In fact, in other embodiments, when control circuit is respectively provided on a circuit board, which can
It also can be set in the second accommodating chamber 114a at engaging portion 113 with setting.
As shown in Figures 9 to 11, radiating subassembly 19 includes: fan 191 and heat sink 192, and fan 191 can generate when rotating
For the radiating airflow to the heat dissipation of motor 14, the radiating ribs of the flow direction for being oriented to radiating airflow are formed on heat sink 192
192a。
The setting of fan 191 is formed by the first accommodating chamber 112a in the first receiving portion 112, and fan 191 is fixedly installed to
Motor shaft 141 with motor shaft 141 to rotate synchronously.Fan 191 can be centrifugal fan 191 in the present embodiment.First
Receiving portion 112 is distributed in the two sides of the first plane 102, and the part that the first receiving portion 112 is located at the front side of the first plane 102 can be with
It is defined as front 112b, the part that the first receiving portion 112 is located at 102 rear side of the first plane can be defined as rear portion 112c, fan
In space made of 191 settings are surrounded in front 112b.
The setting of heat sink 192 is formed by the second accommodating chamber 114a in the second receiving portion 114, in the present embodiment,
Heat sink 192 can be fixed together with first circuit board 181.More specifically, heat sink 192 is at one perpendicular to
Extend in the plane of one axis 101, heat sink 192 is located at the rear side of saw blade 122.
As shown in Figure 1 to Figure 2, in order to generate the radiating airflow that can be radiated to motor 14, circuit board assemblies 18, shell
It is also formed with the first air flow inlet 114b on body 11 and the first air stream outlet 112d, the first air flow inlet 114b is connected to shell 11
Inside and outside, the first air stream outlet 112d is also connected to the inside and outside of shell 11, in this way when fan 191 rotates, can generate from the first air-flow
Entrance 114b is flowed into inside shell 11, then flows out to the radiating airflow outside shell 11 by the first air stream outlet 112d again.
In the present embodiment, the position of the first air flow inlet 114b and the first air stream outlet 112d on shell 11 makes radiating airflow
Heat sink 192, transmission device 17 and motor 14 can be at least flowed through, so as to first circuit board 181, transmission device 17
And motor 14 radiates.Specifically, the first air flow inlet 114b is arranged in the second receiving portion 114, in this embodiment party
In formula, position of the first air flow inlet 114b in the second receiving portion 114 is corresponding with the position of first circuit board 181, in this way
The radiating airflow for flowing into shell 11 from the first air flow inlet 114b is enabled to first flow into first circuit board 181.Heat sink 192
Radiating airflow is set on the circulation path inside shell 11 with first circuit board 181, still further, heat sink 192
The position near the first air flow inlet 114b of the circulation path of radiating airflow is set with first circuit board 181, that is to say
It says, on the circulation path of radiating airflow, heat sink 192 is with respect to motor 14 closer to the first air flow inlet 114b, the first circuit
Plate 181 is with respect to motor 14 also closer to the first air flow inlet 114b.In fact, position of the first air flow inlet 114b on shell 11
As long as set can satisfy from the radiating airflow that the first air flow inlet 114b enters in shell 11 can flow through first circuit board 181,
Transmission device 17 and motor 14 meet the demand to heat dissipation effect of electric circular saw 100.
Because fan 191 is arranged on the front 112b of the front side positioned at the first plane 102 of the first receiving portion 112, and
Position of the fan 191 in the first accommodating chamber 112a is also corresponding with front 112b, therefore the first air stream outlet 112d setting exists
On the front 112b of first receiving portion 112, the first air stream outlet 112d at least can be on the front 112b of the first receiving portion 112
It is lower to open wide, in this way, can be blowed near bottom plate 13 and bottom plate 13 from the radiating airflow that the first air stream outlet 112d flows out, thus
Dust on workpiece, bottom plate 13 can be dispelled, and then improve cutting accuracy.More specifically, the first air stream outlet 112d is set
It sets in the side of the close bottom plate 13 of front 112b, and the upside of the separate bottom plate 13 of front 112b is not provided with the first air-flow and goes out
Mouth 112d, so as to avoid the higher radiating airflow of temperature from blowing to user.Likewise, the first air stream outlet 112d is in shell 11
As long as position on, which can satisfy from the radiating airflow of the first air stream outlet 112d outflow shell 11, can flow through first circuit board
181, transmission device 17 and motor 14.In order to improve heat dissipation effect, the first receiving portion 112 is located at the first plane 102
Rear side rear portion 112c on be additionally provided with the second air flow inlet 112e, to improve the stream of the radiating airflow into shell 11
Amount.The radiating airflow for entering shell 11 from the second air flow inlet 112e can flow through motor 14, so as to improve to motor 14
Heat dissipation effect.
The electric circular saw 200 of second embodiment shown in figure 15 and the difference of the electric circular saw 100 in first embodiment are only that
The difference of heat sink 292 and the second belt wheel 272b, the part that can be adapted with the present embodiment in other first embodiments can be with
It is applied in the present embodiment.In the present embodiment, heat sink 292 is arranged between motor 24 and transmission device 27, more specifically
For, heat sink 292 is arranged between first pulley 271a and the second belt wheel 272b, so as to effectively utilize first pulley
Space between 271a and the second belt wheel 272b, in this way, radiating airflow can be followed by the second belt wheel 272b, heat sink 292,
One belt wheel 271a and motor 24.It is formed with flabellum 272f on second belt wheel 272b, to increase the flow velocity of radiating airflow.
The electric circular saw 300 of 3rd embodiment shown in Figure 16 and the difference of the electric circular saw 100 in first embodiment are only that
The difference of heat sink 392, the part that can be adapted with the present embodiment in other first embodiments can be applied to the present embodiment
In.In the present embodiment, heat sink 392 extends along the direction for the second axis 304 for being parallel to the rotation of motor shaft 341, heat dissipation
Cutting planes of the extending direction of plate 392 also with saw blade 322 are mutually perpendicular to, and heat sink 392 is also located at the right side of saw blade 322.
The electric circular saw 400 of fourth embodiment shown in Figure 17 and the difference of the electric circular saw 100 in first embodiment are only that
The difference of transmission device, the part that can be adapted with the present embodiment in other first embodiments can be applied to the present embodiment
In.In the present embodiment, transmission device includes: the gear that power transmitting is realized between jackshaft 471d and motor shaft 441
Component 471, gear assembly 471 include with motor shaft 441 constitute rotate synchronously first gear 471a and with jackshaft 471d structure
It can also be arranged in both it at the second gear 471b of synchronous rotation, between first gear 471a and second gear 471b
Between realize power transmitting intermediate gear 471c.
The electric circular saw 500 of 5th embodiment and the difference of the electric circular saw 100 in first embodiment shown in Figure 18 are only that
The difference of motor 54 and battery pack 551, the part that can be adapted with the present embodiment in other first embodiments can apply
Into the present embodiment.In the present embodiment, the both ends on the extending direction of handle portion 511 are still respectively formed with the first receiving
Portion 512 and engaging portion 513, motor 54 are arranged in the first receiving portion 512, the inserting of battery pack 551 to engaging portion 513.Wherein, electric
The cutting planes that 504 direction of second axis that arbor 541 rotates extends with saw blade 522 are parallel to each other, and when bottom plate 53 is located at figure
Shown in 18 when original state, 504 direction of second axis that motor shaft 541 rotates is intersected with the inclination of base plate plane 531.Battery pack
551 insertings are parallel to each other with cutting planes to 505 direction of second straight line of engaging portion 513 and are parallel to each other with base plate plane 531.
It will be appreciated, of course, that the setting position of battery pack 551 and cartridge insertion direction are not when the extending direction of motor shaft 541 is fixed
As limit, likewise, when the setting position of battery pack 551 and fixed cartridge insertion direction, the extending direction of motor shaft 541
And as limit.
The electric circular saw 600 of sixth embodiment shown in Figure 19 and the difference of the electric circular saw 100 in first embodiment are only that
The difference of motor 64 and battery pack 651, the part that can be adapted with the present embodiment in other first embodiments can apply
Into the present embodiment.In the present embodiment, the both ends on the extending direction of handle portion are still respectively formed with the first receiving portion
612 and engaging portion 613, motor 64 is arranged in the first receiving portion 612, the inserting of battery pack 651 to engaging portion 613.Wherein, motor
The cutting planes that 604 direction of second axis that axis 641 rotates extends with saw blade 622 are parallel to each other, and when bottom plate 63 is located at Figure 18
Shown in original state when, motor shaft 641 rotate 604 direction of second axis be mutually perpendicular to base plate plane 631.Battery pack
651 insertings are mutually perpendicular to cutting planes to the direction of engaging portion 613 and are parallel to each other with base plate plane 631.Of course, it is possible to manage
Solution, when the extending direction of motor shaft 641 is fixed, the setting position of battery pack 651 and cartridge insertion direction are not limited thereto, together
Sample, when the setting position of battery pack 651 and fixed cartridge insertion direction, the extending direction of motor shaft 641 is also and as limit.
The electric circular saw 700 of 7th embodiment and the difference of the electric circular saw 100 in first embodiment shown in Figure 20 are only that
The difference of power supply device, the part that can be adapted with the present embodiment in other first embodiments can be applied to the present embodiment
In.In the present embodiment, one end on 711 extending direction of handle portion forms the first receiving portion 712, and motor 74 is arranged first
In receiving portion 712, and the other end on 711 extending direction of handle portion is connected with power supply line 713, and power supply line 713 is far from handle
The plug 713a for introducing alternating current is arranged in the tail end in portion 711.
The electric circular saw 800 of 8th embodiment and the difference of the electric circular saw 100 in first embodiment shown in Figure 21 are only that
The position of motor 84 and battery pack 851 is different, and the part that can be adapted with the present embodiment in other first embodiments can be with
It is applied in the present embodiment.In the present embodiment, the left side of the direction of advance of electric circular saw 800, motor is arranged in battery pack 851
84 are arranged in the right side of the close user of electric circular saw 800, and in other words, the present embodiment is with respect to first embodiment, by 84 He of motor
The position of battery pack 851 has carried out left-right reversed, and at this moment, battery pack 851 and cover assembly 86 are formed by notch 863 positioned at one
A the same side perpendicular to cutting planes, and motor 84 is then located at the other side.Corresponding, handle portion 811 is in their extension direction
800 direction of advance of close electric circular saw one end form for combine battery pack 851 engaging portion 813, handle portion 811 is at it
The other end on extending direction forms the first receiving portion 812 for accommodating motor 84.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation
Technical solution obtained, all falls in the protection scope of the utility model.
Claims (10)
1. a kind of electric circular saw, comprising:
Saw blade extends in a cutting planes；
Output shaft, for installing the saw blade；
Motor, for driving the output shaft to rotate around first axle；
Shell is formed with the first receiving portion for accommodating the motor；
Battery pack, for powering to the motor；
Wherein, first receiving portion is around the first accommodating chamber is formed with, and the motor setting is in the first receiving cavity；
It is characterized by:
The shell further include:
Handle for holding for user, the one end of the handle in their extension direction connect first receiving portion；
For removably in conjunction with the engaging portion of the battery pack；
Wherein, the engaging portion is formed in the other end on the extending direction of the handle.
2. electric circular saw according to claim 1, it is characterised in that:
The electric circular saw further include:
Bottom plate is formed with the base plate plane for contacting with workpiece；
The bottom plate be also formed with for the saw blade at least partially across opening；
When the electric circular saw has maximum depth of cut, the saw blade passes through the size maximum of effective cut portion of bottom plate；
Wherein, when the electric circular saw has maximum depth of cut, the motor, handle and the battery pack are flat in the bottom plate
The orthographic projection in plane where face is point-blank arranged successively.
3. electric circular saw according to claim 1, it is characterised in that:
The motor is located at the saw blade except the orthographic projection in the cutting planes in the orthographic projection in the cutting planes.
4. electric circular saw according to claim 1, it is characterised in that:
The motor is distributed in the two sides of the cutting planes.
5. electric circular saw according to claim 1, it is characterised in that:
The engaging portion is distributed in the two sides of the cutting planes.
6. electric circular saw according to claim 1, it is characterised in that:
The saw blade is circular saw blade, and the motor includes the motor shaft that can be rotated using second axis as axis, and the motor shaft turns
The first axle that dynamic second axis is rotated with the output shaft is parallel to each other；Wherein, the first axle and second axis
The distance between line is greater than the radius of the circular saw blade.
7. electric circular saw according to claim 1, it is characterised in that:
The electric circular saw further include:
Transmission device realizes the transmitting of power between the motor and the output shaft；
Circuit board assemblies, the first circuit board including the output power for controlling the motor；
The shell further include:
Second receiving portion forms the second accommodating chamber for accommodating the transmission device；
The transmission device is arranged in second accommodating chamber；
The handle connects both with the upside of the engaging portion in first receiving portion, and second receiving portion is in institute
It states the first receiving portion and connects both with the downside of the engaging portion.
8. electric circular saw according to claim 7, it is characterised in that:
The first circuit board is arranged in second accommodating chamber；The circuit board assemblies further include being arranged in the handle
Second circuit board.
9. electric circular saw according to claim 7, it is characterised in that:
The electric circular saw further include:
Fan is connect with the motor；
The fan setting is in the first receiving cavity.
10. electric circular saw according to claim 1, it is characterised in that:
The shell further include:
Cover assembly, including determine shield and can relative to it is described determine shield rotate dynamic shield；
The dynamic shield and it is described determine to be formed with one between shield and open wide forward so that saw blade touches the opening of workpiece, it is described
The front end of the handle is arranged in first receiving portion, and the rear end of the handle is arranged in the engaging portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017113233677 | 2017-12-13 | ||
| CN201711323367 | 2017-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209477418U true CN209477418U (en) | 2019-10-11 |
Family
ID=66818917
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110990704.8A Pending CN113909565A (en) | 2017-12-13 | 2018-12-13 | Electric circular saw |
| CN201822099107.2U Active CN209477418U (en) | 2017-12-13 | 2018-12-13 | Electric circular saw |
| CN202110989056.4A Pending CN113909564A (en) | 2017-12-13 | 2018-12-13 | Electric circular saw |
| CN201811521769.2A Active CN109909548B (en) | 2017-12-13 | 2018-12-13 | Electric circular saw |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110990704.8A Pending CN113909565A (en) | 2017-12-13 | 2018-12-13 | Electric circular saw |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110989056.4A Pending CN113909564A (en) | 2017-12-13 | 2018-12-13 | Electric circular saw |
| CN201811521769.2A Active CN109909548B (en) | 2017-12-13 | 2018-12-13 | Electric circular saw |
Country Status (2)
| Country | Link |
|---|---|
| CN (4) | CN113909565A (en) |
| WO (1) | WO2019114777A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114683157A (en) * | 2020-12-25 | 2022-07-01 | 南京泉峰科技有限公司 | Cutting tool |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112743634B (en) * | 2019-10-30 | 2022-06-24 | 南京泉峰科技有限公司 | Electric circular saw |
| WO2021109603A1 (en) * | 2019-12-06 | 2021-06-10 | 苏州宝时得电动工具有限公司 | Cutting tool |
| US20230158704A1 (en) * | 2020-06-25 | 2023-05-25 | Festool Gmbh | Circular saws with pivot assemblies and pivot bias mechanisms |
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| US5856715A (en) * | 1996-12-13 | 1999-01-05 | Ryobi North America, Inc. | Portable electrical power tool having a rare earth permanent magnet motor |
| JP4534549B2 (en) * | 2004-03-26 | 2010-09-01 | 日立工機株式会社 | Tabletop cutting machine |
| US20090223337A1 (en) * | 2008-03-06 | 2009-09-10 | Black & Decker Inc. | Worm drive saw |
| JP4466771B2 (en) * | 2008-07-07 | 2010-05-26 | パナソニック電工株式会社 | Electric circular saw |
| JP5526442B2 (en) * | 2009-03-05 | 2014-06-18 | マックス株式会社 | Portable cutting machine |
| CN201483079U (en) * | 2009-06-01 | 2010-05-26 | 南京德朔实业有限公司 | Direct current circular saw |
| JP5570845B2 (en) * | 2010-03-04 | 2014-08-13 | 株式会社マキタ | Hand-held cutting tool |
| CN202147052U (en) * | 2011-02-14 | 2012-02-22 | 南京久驰机电实业有限公司 | Hand-held electric circular saw |
| CN103291844A (en) * | 2012-03-02 | 2013-09-11 | 博世电动工具（中国）有限公司 | Electric tool and transmission device thereof |
| JP5633940B2 (en) * | 2012-03-15 | 2014-12-03 | 日立工機株式会社 | Portable electric cutting machine |
| JP2014148006A (en) * | 2013-02-01 | 2014-08-21 | Makita Corp | Electric power tool and portable circular saw |
| CN203380425U (en) * | 2013-07-09 | 2014-01-08 | 南京久驰机电实业有限公司 | Electric circular saw |
| CN104625222A (en) * | 2013-11-08 | 2015-05-20 | 苏州宝时得电动工具有限公司 | Electric circular saw |
| CN104722835B (en) * | 2013-12-18 | 2017-08-29 | 南京德朔实业有限公司 | Electric circular saw |
| CN104308259B (en) * | 2014-09-04 | 2017-04-12 | 江苏苏美达五金工具有限公司 | Handheld cut-in type electric circular saw |
| JP6769093B2 (en) * | 2016-05-02 | 2020-10-14 | マックス株式会社 | Portable cutting machine |
| CN206445286U (en) * | 2017-01-22 | 2017-08-29 | 南京德朔实业有限公司 | Electric circular saw |
| CN206445294U (en) * | 2017-01-22 | 2017-08-29 | 南京德朔实业有限公司 | Electric tool |
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2018
- 2018-12-13 CN CN202110990704.8A patent/CN113909565A/en active Pending
- 2018-12-13 CN CN201822099107.2U patent/CN209477418U/en active Active
- 2018-12-13 WO PCT/CN2018/120769 patent/WO2019114777A1/en active Application Filing
- 2018-12-13 CN CN202110989056.4A patent/CN113909564A/en active Pending
- 2018-12-13 CN CN201811521769.2A patent/CN109909548B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114683157A (en) * | 2020-12-25 | 2022-07-01 | 南京泉峰科技有限公司 | Cutting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109909548A (en) | 2019-06-21 |
| CN113909565A (en) | 2022-01-11 |
| CN109909548B (en) | 2022-03-01 |
| WO2019114777A1 (en) | 2019-06-20 |
| CN113909564A (en) | 2022-01-11 |
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: No. 529, Jiangjun Avenue, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |