CN103770158B - A kind of brake structure of electric chain saw - Google Patents
A kind of brake structure of electric chain saw Download PDFInfo
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- CN103770158B CN103770158B CN201410024631.7A CN201410024631A CN103770158B CN 103770158 B CN103770158 B CN 103770158B CN 201410024631 A CN201410024631 A CN 201410024631A CN 103770158 B CN103770158 B CN 103770158B
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- friction plate
- electric chain
- chain saw
- rotating shaft
- brake
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Abstract
The invention discloses a kind of brake structure of electric chain saw, belong to electric chain saw field, solved existing electric chain saw structure too complicated and lack the problem of safeguard procedures. A kind of brake structure of electric chain saw, comprise brake disc, protective plate, button and the rotor linking with the dynamic structure of electric chain saw, brake disc is fixedly mounted on rotor, protective plate is connected with the first friction plate, button is connected with the second friction plate, protective plate can drive the first friction plate away from or near and contact brake disc, button can drive the second friction plate away from or near and contact brake disc. Protective plate can make separately electric chain saw braking by the first friction plate, the second friction plate with contacting of brake disc respectively with button, safe, and the present invention is simple in structure, produces assembling easily, and cost is lower.
Description
Technical field
The present invention relates to the brake structure in electric chain saw field, particularly a kind of electric chain saw.
Background technology
Electric chain saw is a kind of traditional electric tool, in actual mechanical process, has certain danger,If saw chain is encountered harder object as tree knot or metal object etc. in the time of cutting trees, electric chain saw mayCan takeoff to operator's health direction, be commonly called as bounce-back. Run into the situation of this bounce-back, must make electric chain sawEmergency brake, makes chain stop motion in a short period of time, to prevent chain incised wound operator. ExistingElectric chain saw braking mechanism, it is special that Chinese patent, the applicant who is 201776523U as patent publication No. applies forThe Chinese patent that profit publication number is 102172927A, the Chinese patent that patent publication No. is 103128368A,Structure is comparatively complicated, and production assembling is comparatively loaded down with trivial details, and cost is higher, and generally only has stopping/opening of shift knobBrake/unclamp the dynamic structure of electric chain saw and the circuit of opening/closing electric chain saw, lack safeguard procedures.
Summary of the invention
The object that the present invention will reach is to provide a kind of brake structure of electric chain saw, simple in structure, produces dressComplexion is easy, and cost is low, and has safeguard procedures.
In order to achieve the above object, the present invention adopts following technical scheme: a kind of brake structure of electric chain saw,Comprise brake disc, protective plate, button and the rotor linking with the dynamic structure of electric chain saw, the fixing peace of brake discBe contained on rotor, protective plate is connected with the first friction plate, and button is connected with the second friction plate, and protective plate can be withMoving the first friction plate away from or near and contact brake disc, button can drive the second friction plate away from or near alsoContact brake disc.
Further, described protective plate and described the first friction plate are rotationally connected, and protective plate is provided with and current sourceThe first rotating shaft that saw is fixing, the first friction plate is provided with three rotating shaft fixing with electric chain saw, and protective plate is around firstRotating shaft rotate time drive the first friction plate around the 3rd rotating shaft rotate and can make the first friction plate near and contact described inBrake disc produces the frictional force of brake power structure. Rotate protective plate and make the other end of protective plate in the first rotating shaftControl the first friction plate and rotate around the 3rd rotating shaft, use less power just can make the first friction plate and brake disc produceRaw larger frictional force.
Further, described the 3rd rotating shaft is provided with and makes described the first friction plate of the 3rd rotating shaft generation control closeAnd contact the first torsion spring of the trend of described brake disc. Operator is unclamped after protective plate, the first friction plate energySelf-return touches mutually with brake disc, safer.
Further, be provided with the first switch in described brake structure, the first switch series is associated in the circuit of electric chain sawIn, described the first friction plate is during away from described brake disc, and described protective plate touches and closed the first switch. TheUnder the state of one switch closure, electric chain saw ability energising work, has strengthened security.
Further, described button and described the second friction plate are rotationally connected, and button is provided with electric chain saw solidThe second fixed rotating shaft, the second friction plate is provided with four rotating shaft fixing with electric chain saw, and button turns around the second rotating shaftWhen moving, drive the second friction plate around the 4th rotating shaft rotate and can make the second friction plate near and contact described brake discProduce the frictional force of brake power structure. Press the button button is rubbed in the other end control second of the second rotating shaftPad is rotated around the 4th rotating shaft, uses less power just can make the second friction plate and brake disc produce larger rubbingWiping power.
Further, described the 4th rotating shaft is provided with and makes described the second friction plate of the 4th rotating shaft generation control closeAnd contact the second torsion spring of the trend of described brake disc. Make after operator's release button, the second friction plate can be certainlyMoving return touches mutually with brake disc, safer.
Further, described the second friction plate produces in the other one end near described brake disc of described the 4th rotating shaftThe torque around the 4th rotating shaft be greater than the turning around the 4th rotating shaft that the other one end away from brake disc of the 4th rotating shaft producesSquare. Further accelerate the speed of the second friction plate self-return.
Further, in described brake structure, be provided with second switch, second switch is connected on the circuit of electric chain sawIn, described the second friction plate is during away from described brake disc, and described button touches and closed second switch. Only haveUnder the first switch, the equal closed state of second switch, the first friction plate and the second friction plate all unclampLoad, electric chain saw just can make its circuit communication work.
Adopt after technique scheme, tool of the present invention has the following advantages:
Protective plate can make separately with contacting of brake disc by the first friction plate, the second friction plate respectively with buttonElectric chain saw braking, safe, and the present invention is simple in structure, produces assembling easily, and cost is lower.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the structural representation of an embodiment of the present invention.
Detailed description of the invention
Figure 1 shows that a kind of embodiment of the present invention.
A brake structure for electric chain saw, comprises brake disc 31, protective plate 11, button 21 and and electric chain sawThe rotor 32 of dynamic structure (not shown) interlock, brake disc 31 is fixedly mounted on rotor 32,On protective plate 11, be connected with the first friction plate 12, on button 21, be connected with the second friction plate 22, protective plate 11Can drive the first friction plate 12 away from or near and contact brake disc 31, button 21 can drive the second friction plate22 away from or near and contact brake disc 31, as long as the first friction plate 12, the second friction plate 22 have one withBrake disc 31 touches and can produce enough frictional force braking discs 31 mutually, and then braking electric chain saw, and two are rubbedThe also better effects if of braking disc 31 simultaneously of pad.
Protective plate 11 and the first friction plate 12 are rotationally connected, protective plate 11 be provided with electric chain saw fixing theOne rotating shaft 13, the first friction plates 12 are provided with three rotating shaft 15 fixing with electric chain saw, and protective plate 11 is around firstRotating shaft 13 drives the first friction plate 12 rotate and can make the first friction plate 12 lean on around the 3rd rotating shaft 15 while rotationNear and contact described brake disc 31 and produce the frictional force of brake power structure, rotate protective plate 11 and make protective plate11 rotate around the 3rd rotating shaft 15 at other end control first friction plate 12 of the first rotating shaft 13, use lessPower just can make the first friction plate 12 produce larger frictional force with brake disc 31. The 3rd rotating shaft 15 is provided with and makesThe 3rd rotating shaft 15 produce control the first friction plates 12 near and contact the first torsion spring (figure of the trend of brake disc 31In not shown), the first friction plate 12 produce in the other one end near brake discs 31 of the 3rd rotating shaft 15 around theThe torque of three rotating shafts 15 be greater than that the other one end away from brake disc 31 of the 3rd rotating shaft 15 produces around the 3rd rotating shaft 15Torque. Make after operator's release button, the first friction plate 12 can be kept out tactile 33 by self-return, moreSafety.
Button 21 and the second friction plate 22 are rotationally connected, and button 21 is provided with and fixing second the turning of electric chain sawAxle 23, the second friction plates 22 are provided with four rotating shaft 25 fixing with electric chain saw, and button 21 is around the second rotating shaft 23When rotation, drive the second friction plate 22 rotate and can make the second friction plate 22 near also contact around the 4th rotating shaft 25Brake disc 31 produces the frictional force of brake power structure, presses the button 21 and makes button 21 in the second rotating shaft 23Other end control the second friction plate 22 rotate around the 4th rotating shaft 25, use less power just can make second to rubPad 22 produces larger frictional force with brake disc 31. The 4th rotating shaft 25 is provided with the 4th rotating shaft 25 is producedRaw control the second friction plate 22 near and contact the second torsion spring (not shown) of the trend of brake disc 31,The second friction plate 22 produce in the other one end near brake discs 31 of the 4th rotating shaft 25 around the 4th rotating shaft 25Torque is greater than the torque around the 4th rotating shaft 25 that the 4th other one end away from brake disc 31 of rotating shaft 25 produces. MakeAfter operator's release button, the second friction plate 22 can be kept out tactile 33 by self-return, safer.
Brake structure also comprises to be located at the first other switch 14 of protective plate 11 and to be located at second of button 21 sides and to openPass 24, the first switches 14, second switch 24 are all connected in the circuit of electric chain saw, and the first friction plate 12 is far awayDuring from brake disc 31, protective plate 11 shake-up closed the first switch 14, the second friction plates 22 are away from brake discWithin 31 o'clock, button 21 touches and closed second switch 24, only in the first switch 14, all closures of second switch 24State under, the first friction plate 12 and the second friction plate 22 all depart under the state of brake disc 31, current sourceSaw just can make its circuit communication work.
The protective plate 11 of electric chain saw brake structure of the present invention and button 21 are respectively by the first friction plate 12, theTwo friction plates 22 can make separately electric chain saw braking with contacting of brake disc 31, safe, and the present invention's knotStructure is simple, produces assembling easily, and cost is lower.
Except above preferred embodiment, the present invention also has other embodiment, and those skilled in the art canMake various changes and distortion according to the present invention, only otherwise depart from spirit of the present invention, all should belong to the present inventionThe defined scope of claims.
Claims (6)
1. a brake structure for electric chain saw, is characterized in that: comprise brake disc (31), protective plate (11),Button (21) and the rotor (32) linking with the dynamic structure of electric chain saw, brake disc is fixedly mounted on rotor,Protective plate is connected with the first friction plate (12), and button is connected with the second friction plate (22), and protective plate can driveThe first friction plate away from or near and contact brake disc, button can drive the second friction plate away from or near and connectTouch brake disc; In described brake structure, be provided with second switch (24), second switch is connected on the circuit of electric chain sawIn, described the second friction plate is during away from described brake disc, and described button touches and closed second switch.
2. the brake structure of a kind of electric chain saw according to claim 1, is characterized in that: described protectionPlate and described the first friction plate are rotationally connected, and protective plate is provided with first rotating shaft (13) fixing with electric chain saw,The first friction plate is provided with three rotating shaft (15) fixing with electric chain saw, and protective plate drives in the time that the first rotating shaft is rotatedThe first friction plate around the 3rd rotating shaft rotate and can make the first friction plate near and contact described brake disc and produce brakingThe frictional force of dynamic structure.
3. the brake structure of a kind of electric chain saw according to claim 2, is characterized in that: the described the 3rdRotating shaft be provided with the 3rd rotating shaft is produced control described the first friction plate near and contact the trend of described brake discThe first torsion spring.
4. according to the brake structure of a kind of electric chain saw described in claim 2 or 3, it is characterized in that: described inIn brake structure, be provided with the first switch (14), the first switch series is associated in the circuit of electric chain saw, and described first rubsPad is during away from described brake disc, and described protective plate touches and closed the first switch.
5. the brake structure of a kind of electric chain saw according to claim 1, is characterized in that: described buttonBe rotationally connected with described the second friction plate, button is provided with second rotating shaft (23) fixing with electric chain saw, secondFriction plate is provided with four rotating shaft (25) fixing with electric chain saw, and button drives second to rub in the time that the second rotating shaft is rotatedPad around the 4th rotating shaft rotate and can make the second friction plate near and contact described brake disc and produce brake power knotThe frictional force of structure.
6. the brake structure of a kind of electric chain saw according to claim 5, is characterized in that: the described the 4thRotating shaft be provided with the 4th rotating shaft is produced control described the second friction plate near and contact the trend of described brake discThe second torsion spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024631.7A CN103770158B (en) | 2014-01-10 | 2014-01-10 | A kind of brake structure of electric chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024631.7A CN103770158B (en) | 2014-01-10 | 2014-01-10 | A kind of brake structure of electric chain saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103770158A CN103770158A (en) | 2014-05-07 |
| CN103770158B true CN103770158B (en) | 2016-05-11 |
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ID=50563156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410024631.7A Active CN103770158B (en) | 2014-01-10 | 2014-01-10 | A kind of brake structure of electric chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103770158B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113119231B (en) * | 2019-12-31 | 2023-06-13 | 苏州金莱克精密机械有限公司 | Brake mechanism of chain saw and chain saw |
| CN112454565A (en) * | 2020-11-30 | 2021-03-09 | 东南大学扬州研究院 | Intelligent safety protection device of precise woodworking bench saw |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5791057A (en) * | 1995-09-04 | 1998-08-11 | Makita Corporation | Electromotive chain saw |
| CN1358615A (en) * | 2000-12-15 | 2002-07-17 | 本田技研工业株式会社 | Bush cutting machine |
| CN1907613A (en) * | 2005-08-02 | 2007-02-07 | 罗伯特·博世有限公司 | Improvements in or relating to chainsaws |
| CN101590548A (en) * | 2009-03-17 | 2009-12-02 | 金莱克电气股份有限公司 | Electric chain saw |
| CN203765728U (en) * | 2014-01-10 | 2014-08-13 | 浙江亚特电器有限公司 | Brake structure of electric chain saw |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050210685A1 (en) * | 2004-03-24 | 2005-09-29 | Jung-Chang Jong | Brake mechanism for tool |
-
2014
- 2014-01-10 CN CN201410024631.7A patent/CN103770158B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5791057A (en) * | 1995-09-04 | 1998-08-11 | Makita Corporation | Electromotive chain saw |
| CN1358615A (en) * | 2000-12-15 | 2002-07-17 | 本田技研工业株式会社 | Bush cutting machine |
| CN1907613A (en) * | 2005-08-02 | 2007-02-07 | 罗伯特·博世有限公司 | Improvements in or relating to chainsaws |
| CN101590548A (en) * | 2009-03-17 | 2009-12-02 | 金莱克电气股份有限公司 | Electric chain saw |
| CN203765728U (en) * | 2014-01-10 | 2014-08-13 | 浙江亚特电器有限公司 | Brake structure of electric chain saw |
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| Publication number | Publication date |
|---|---|
| CN103770158A (en) | 2014-05-07 |
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Address after: No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Yate Electric Appliance Co.,Ltd. Address before: Jiaxing City, Zhejiang province 314100 Nanhu District Yu Xin Zhen Industrial Zone North Water Road No. 1 Patentee before: ZHEJIANG YAT ELECTRICAL APPLIANCE Co.,Ltd. |
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