CN107131273B - Vehicle and cam lever mechanism thereof - Google Patents
Vehicle and cam lever mechanism thereof Download PDFInfo
- Publication number
- CN107131273B CN107131273B CN201710549267.XA CN201710549267A CN107131273B CN 107131273 B CN107131273 B CN 107131273B CN 201710549267 A CN201710549267 A CN 201710549267A CN 107131273 B CN107131273 B CN 107131273B
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- CN
- China
- Prior art keywords
- cam
- center point
- rotation center
- gear
- rocker arm
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention discloses a cam lever mechanism which comprises a rocker arm, a cam and a gear, wherein the rocker arm comprises an arm body and a ring body, the arm body is obliquely arranged on one side of the ring body, a first rotation center point is arranged on the rocker arm, the first rotation center point is positioned between the ring body and the arm body, the cam is arranged in the ring body and is provided with a second rotation center point, a bulge part is arranged on the inner wall of the ring body, the top end of the rocker arm is provided with a tooth claw, the tooth claw is matched with the gear for use, the gear is provided with a third rotation center point, and the tooth-shaped center point of the tooth claw is arranged on a circle taking the first rotation center point as a circle center and taking the first rotation center point to the third rotation center point as a radius. The cam lever mechanism provided by the invention can reduce interference between the tooth claw and the gear teeth of the gear, and is more beneficial to the tooth claw to separate from the gear when the gear has a movement trend. The invention also discloses a vehicle adopting the cam lever mechanism.
Description
Technical Field
The invention relates to the technical field of limiting devices, in particular to a vehicle and a cam lever mechanism thereof.
Background
All be provided with parking mechanism on the vehicle, including the parking rocking arm, need the interlock between the teeth claw of parking rocking arm and the teeth of a cogwheel and break away from realization parking and break away from the parking, because the interference between the teeth claw and the teeth of a cogwheel is serious, when leading to the gear to have the motion trend, the separation of teeth claw is not smooth.
Therefore, how to provide a cam lever mechanism to reduce the interference between the tooth claw and the tooth of the gear is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
Accordingly, it is an object of the present invention to provide a cam lever mechanism to reduce interference between the pawl and the teeth of the gear. Another object of the present invention is to provide a vehicle employing the cam lever mechanism described above.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a cam lever mechanism, includes rocking arm, cam and gear, the rocking arm includes arm body and ring body, the arm body slope sets up one side of ring body, be provided with first rotation center point on the rocking arm, first rotation center point is located between the ring body and the arm body, the cam embeds in the ring body and self have second rotation center point, be provided with the bellying on the inner wall of ring body, the top of rocking arm is provided with the pawl, the pawl with the gear cooperation is used, the gear has third rotation center point, the profile of tooth center point of pawl sets up in regard as the centre of a circle with first rotation center point to third rotation center point is radial circle, when the cam clockwise rotation is blocked by the bellying, the cam continues clockwise rotation to promote the rocking arm rotates anticlockwise around first rotation center point, the pawl with the gear meshing, the gear can not rotate, when the cam anticlockwise rotation is blocked by the inner wall the cam is rotated anticlockwise, the pawl continues to rotate anticlockwise around the rotation center point.
Preferably, when the clockwise rotation of the cam is blocked by the boss, the rocker arm is now moved to the maximum travel of the cam.
Preferably, when the cam is blocked from counter-clockwise rotation by the inner wall of the ring, the rocker arm is now moved to the maximum travel of the cam.
Preferably, the side of the protruding part, which is close to the cam and used for blocking the cam, is an arc-shaped protrusion.
Preferably, the side of the protruding part away from the cam is an arc-shaped protrusion.
Preferably, the side of the protruding portion, which is close to the cam and is used for blocking the cam, is an arc-shaped protrusion, and the side of the protruding portion, which is far away from the cam, is an arc-shaped protrusion.
The invention also provides a vehicle comprising a parking rocker arm, wherein the parking rocker arm is the cam lever mechanism.
The invention provides a cam lever mechanism, which comprises a rocker arm, a cam and a gear, wherein the rocker arm comprises an arm body and a ring body, the arm body is obliquely arranged on one side of the ring body, a first rotation center point is arranged on the rocker arm, the first rotation center point is positioned between the ring body and the arm body, the cam is internally arranged in the ring body and is provided with a second rotation center point, a protruding part is arranged on the inner wall of the ring body, the top end of the rocker arm is provided with a tooth claw, the tooth claw is matched with the gear for use, the gear is provided with a third rotation center point, the tooth center point of the tooth claw is arranged on a circle taking the first rotation center point as a circle center, the first rotation center point to the third rotation center point as a radius, when the cam rotates clockwise and is blocked by the protruding part, the cam continues to rotate clockwise to push the rocker arm to rotate anticlockwise around the first rotation center point, the tooth claw is meshed with the gear, and when the cam rotates anticlockwise and is blocked by the inner wall, the cam continues to rotate anticlockwise and rotate around the tooth claw.
Compared with the prior art, the cam lever mechanism reduces the gear-releasing force of the parking gear, and the tooth-shaped center point of the tooth claw is arranged on the circle taking the first rotation center point as the circle center and taking the first rotation center point to the third rotation center point as the radius, so that interference between the tooth claw and the gear teeth of the gear is reduced, and the tooth claw is more beneficial to being separated from the gear when the gear has a movement trend.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a cam lever mechanism according to an embodiment of the present invention in a first state;
FIG. 2 is a schematic view of a cam lever mechanism according to a second embodiment of the present invention;
FIG. 3 is a schematic view of a cam lever mechanism according to a third embodiment of the present invention;
fig. 4 is a schematic structural view of a cam lever mechanism according to an embodiment of the present invention.
In the above figures 1-4:
rocker arm 1, cam 2, gear 3, first rotation center point A, third rotation center point B, tooth form center point C, second rotation center point D.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a cam lever mechanism according to an embodiment of the present invention in a first state; FIG. 2 is a schematic view of a cam lever mechanism according to a second embodiment of the present invention; FIG. 3 is a schematic view of a cam lever mechanism according to a third embodiment of the present invention; fig. 4 is a schematic structural view of a cam lever mechanism according to an embodiment of the present invention.
The embodiment of the invention provides a cam lever mechanism, which comprises a rocker arm 1, a cam 2 and a gear 3, wherein the rocker arm 1 comprises an arm body and a ring body, the arm body is obliquely arranged on one side of the ring body, a first rotation center point A is arranged on the rocker arm 1, the first rotation center point A is positioned between the ring body and the arm body, the cam 2 is arranged in the ring body and is provided with a second rotation center point D, a protruding part is arranged on the inner wall of the ring body, the top end of the rocker arm 1 is provided with a tooth claw, the tooth claw is matched with the gear 3 for use, the gear 3 is provided with a third rotation center point B, a tooth center point C of the tooth claw is arranged on a circle taking the first rotation center point A as a circle center and taking the first rotation center point A to the third rotation center point B as a radius, in the parking process, when the cam 2 rotates clockwise and is blocked by the protruding part, the cam 2 continues to rotate clockwise to push the rocker arm 1 around the first rotation center point A, when the tooth claw is meshed with the gear 3 in a clockwise direction as shown in fig. 2, and in the parking process, the tooth claw is not rotatable, the tooth claw is matched with the gear 3, and the tooth claw is not rotatable, when the tooth claw is pushed counterclockwise and rotates around the first rotation center point A when the cam 2 is blocked by the first rotation center point B, and rotates anticlockwise, and the first rotation center point B is continuously, and rotates around the first rotation center point B as shown in fig. 3.
Compared with the prior art, the cam lever mechanism reduces the gear-releasing force of the parking gear, and the tooth-shaped center point C of the tooth claw is arranged on the circle taking the first rotation center point A as the circle center and taking the first rotation center point A to the third rotation center point B as the radius, so that interference between the tooth claw and the gear teeth of the gear 3 is reduced, and the tooth claw is more beneficial to being separated from the gear 3 when the gear 3 has a movement trend.
Moreover, based on the above design, compared with the prior art, the cam lever mechanism provided by the embodiment of the invention can further reduce the tooth-shaped addendum circle of the rocker arm 1 and the gear 3; this makes it possible to reduce the arrangement distance of the rocker arm 1 and the gear 3 so that the rocker arm 1 can swing a small angle to disengage from the gear 3, thereby reducing the size of the cam 2 as compared with the prior art, and the whole mechanism occupies a small space as compared with the prior art while securing strength. In actual use, the contact area between the tooth claw of the rocker arm 1 and the gear teeth of the gear 3 is reduced due to the reduction of the tooth shape height of the gear 3, so that the friction force between the tooth claw and the gear teeth is reduced; the three-point position of the form design A, B, C can be reasonably arranged and reasonably selected according to space, so that the parking can be wider than the lever ratio, and the applicability of the mechanism in different models is improved.
When the clockwise rotation of the cam 2 is blocked by the boss, it is at this time the rocker arm 1 that moves to the maximum stroke of the cam 2. When the cam 2 rotates anticlockwise blocked by the inner wall of the ring body, the rocker arm 1 moves to the maximum stroke of the cam 2.
Wherein, the side of the protruding part, which is close to the cam 2 and used for blocking the cam 2, is an arc-shaped protrusion. The side of the protruding part far away from the cam 2 is an arc-shaped protrusion.
The embodiment of the invention also provides a vehicle, which comprises a parking rocker arm, wherein the parking rocker arm is the cam lever mechanism according to any one of the embodiments.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A cam lever mechanism is characterized by comprising a rocker arm, a cam and a gear,
the rocker arm comprises an arm body and a ring body, the arm body is obliquely arranged at one side of the ring body, a first rotation center point is arranged on the rocker arm and is positioned between the ring body and the arm body,
the cam is arranged in the ring body and is provided with a second rotation center point, the inner wall of the ring body is provided with a protruding part,
the top end of the rocker arm is provided with a tooth claw which is used in limit fit with the gear, the gear is provided with a third rotation center point,
the tooth-shaped center point of the tooth claw is arranged on a circle taking the first rotation center point as a circle center and taking the first rotation center point to the third rotation center point as a radius,
when the clockwise rotation of the cam is blocked by the convex part, the cam continues to rotate clockwise to push the rocker arm to rotate anticlockwise around the first rotation center point, the tooth claw is meshed with the gear, the gear cannot rotate,
when the anticlockwise rotation of the cam is blocked by the inner wall of the ring body, the cam continues to anticlockwise rotate to push the rocker arm to rotate clockwise around the first rotation center point, and the tooth claw is separated from the gear;
when the cam is blocked from rotating clockwise by the boss, the rocker arm is now moved to the maximum travel of the cam.
2. The cam lever mechanism of claim 1, wherein the rocker arm is moved to a maximum travel of the cam when the cam is blocked from counter-clockwise rotation by an inner wall of the ring body.
3. The cam lever mechanism of claim 1, wherein a side of the boss adjacent to the cam for blocking the cam is an arcuate boss.
4. The cam lever mechanism of claim 1, wherein a side of the boss remote from the cam is an arcuate boss.
5. The cam lever mechanism of claim 1, wherein the side of the boss adjacent to the cam for blocking the cam is an arcuate projection and the side of the boss remote from the cam is an arcuate projection.
6. A vehicle comprising a park rocker arm, wherein the park rocker arm is a cam lever mechanism as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710549267.XA CN107131273B (en) | 2017-07-07 | 2017-07-07 | Vehicle and cam lever mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710549267.XA CN107131273B (en) | 2017-07-07 | 2017-07-07 | Vehicle and cam lever mechanism thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107131273A CN107131273A (en) | 2017-09-05 |
| CN107131273B true CN107131273B (en) | 2023-07-28 |
Family
ID=59737443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710549267.XA Active CN107131273B (en) | 2017-07-07 | 2017-07-07 | Vehicle and cam lever mechanism thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107131273B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6082446A (en) * | 1983-10-14 | 1985-05-10 | Nissan Motor Co Ltd | Assembling of parklock device |
| JPH1194080A (en) * | 1997-09-19 | 1999-04-09 | Aichi Mach Ind Co Ltd | Parking mechanism of automatic transmission |
| CN101172516A (en) * | 2007-09-30 | 2008-05-07 | 重庆建设摩托车股份有限公司 | Engine embedded parking braking mechanism of full road condition motorcycle |
| JP2009280178A (en) * | 2008-05-26 | 2009-12-03 | Toyota Motor Corp | Parking pawl, parking apparatus and hybrid vehicle |
| CN102135177A (en) * | 2011-04-08 | 2011-07-27 | 重庆鑫源摩托车股份有限公司 | Braking parking mechanism for dune buggy |
| CN202368745U (en) * | 2011-10-09 | 2012-08-08 | 浙江春风动力股份有限公司 | Rocking-arm type parking brake for motorcycle |
| CN206972852U (en) * | 2017-07-07 | 2018-02-06 | 浙江春风动力股份有限公司 | A kind of vehicle and its cam-and- |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008201162A (en) * | 2007-02-16 | 2008-09-04 | Toyota Motor Corp | Parking mechanism for automatic transmission |
| DE102010042917A1 (en) * | 2010-10-26 | 2012-04-26 | Zf Friedrichshafen Ag | Parking brake device for a motor vehicle transmission |
-
2017
- 2017-07-07 CN CN201710549267.XA patent/CN107131273B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6082446A (en) * | 1983-10-14 | 1985-05-10 | Nissan Motor Co Ltd | Assembling of parklock device |
| JPH1194080A (en) * | 1997-09-19 | 1999-04-09 | Aichi Mach Ind Co Ltd | Parking mechanism of automatic transmission |
| CN101172516A (en) * | 2007-09-30 | 2008-05-07 | 重庆建设摩托车股份有限公司 | Engine embedded parking braking mechanism of full road condition motorcycle |
| JP2009280178A (en) * | 2008-05-26 | 2009-12-03 | Toyota Motor Corp | Parking pawl, parking apparatus and hybrid vehicle |
| CN102135177A (en) * | 2011-04-08 | 2011-07-27 | 重庆鑫源摩托车股份有限公司 | Braking parking mechanism for dune buggy |
| CN202368745U (en) * | 2011-10-09 | 2012-08-08 | 浙江春风动力股份有限公司 | Rocking-arm type parking brake for motorcycle |
| CN206972852U (en) * | 2017-07-07 | 2018-02-06 | 浙江春风动力股份有限公司 | A kind of vehicle and its cam-and- |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107131273A (en) | 2017-09-05 |
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