CN102815218B - Eccentric camshaft for servo brake - Google Patents
Eccentric camshaft for servo brake Download PDFInfo
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- CN102815218B CN102815218B CN201210354074.6A CN201210354074A CN102815218B CN 102815218 B CN102815218 B CN 102815218B CN 201210354074 A CN201210354074 A CN 201210354074A CN 102815218 B CN102815218 B CN 102815218B
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- eccentric
- eccentric body
- brake
- camshaft
- servo
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Abstract
The invention discloses an eccentric camshaft for a servo brake. The eccentric camshaft for the servo brake consists of a crank throw connection part, a driving shaft and an eccentric body in sequence. The eccentric camshaft for the servo brake is characterized in that the eccentric body is a flat cylinder, two narrow side surfaces of the eccentric body are arc surfaces; the longitudinal center line of the eccentric body is parallel to the axial line of the driving shaft and a set distance is kept between the longitudinal center line and the axial line. According to the eccentric camshaft, the eccentric body is the flat cylinder, so that the eccentric body does have a structure with stress closed to be balanced during the braking; and at the same time, the eccentric body has motivation force to both a primary brake block and a secondary brake block and is dynamically stressed, so that the phenomenon of locking after brake locking without loosening is greatly reduced and the effect of preventing the locking is provided.
Description
Technical field
The present invention relates to a kind of bicycle, boosted vehicle, electric vehicle servant brake parts, is a kind of eccentric camshaft for servo brake specifically.
Background technology
Chinese utility model patent (patent No. 200720035491.9) discloses a kind of servant brake for electric motor cycle, and Chinese invention patent (patent No. 200910197511.6) discloses a kind of motor-car servant brake.Servant brake disclosed in two patent documents, its basic structure is identical, all have employed the basic structure that existing servant brake generally adopts.The basic structure of existing servant brake by the hoof block group in fuse-box and fuse-box (also known as major and minor slipper, or upper and lower hoof block) form, major-minor slipper is flexibly connected with fuse-box by adapter shaft, and fuse-box servo-actuated hole is herein waist shaped hole, there is the servo-actuated interval of secondary slipper.Brake rod connects adapter shaft, and the other end of secondary slipper is fixed on adapter shaft, and adapter shaft end is provided with eccentric cam, and eccentric cam is resisted against the other end of main brake block.Rolling brake bar, eccentric cam relies on eccentric action main brake block to produce braking force, and along with being rotated further of eccentric cam, main brake block drives secondary slipper servo-actuated by adapter shaft, and two hoof blocks produce braking force thereupon simultaneously.Take-off the brake bar, eccentric cam can turn round reset, and two hoof blocks reset thereupon.But, this structure, its eccentric cam is coaxial assembling with secondary slipper end, not stressed, only stressed with main brake block end, add the reason that eccentric cam shape is intrinsic, in high vehicle speeds process, when carrying out emergency braking, after braking procedure terminates, eccentric cam and main brake block end there will be stuck phenomenon, can not reset, cause brake locking.
Summary of the invention
Technical matters to be solved by this invention, is the defect overcoming prior art existence, proposes a kind of eccentric camshaft for servo brake, for servant brake, effectively can prevent the generation of brake stuck phenomenon.
A kind of eccentric camshaft for servo brake of the present invention, is made up of successively crank throw connecting portion, axle drive shaft, eccentric body; It is characterized in that: described eccentric body is flat-shaped cylinder, two narrow side is arc surface; The longitudinal centerline of eccentric body is parallel with drive axis and keep the distance that sets.
Servant brake comprises fuse-box, main brake block, secondary slipper, crank throw, eccentric cam shaft.Fuse-box is provided with eccentric cam shaft mounting hole and the servo-actuated hole of adapter shaft.One end of main brake block and secondary slipper is hinged by adapter shaft, and adapter shaft is arranged in the servo-actuated hole of adapter shaft.Camshaft is arranged in eccentric cam shaft mounting hole, and crank throw is installed in the one end outside camshaft fuse-box.Camshaft adopts eccentric camshaft for servo brake of the present invention.Establish extension spring between the other end end of main brake block and secondary slipper, the end of main brake block and secondary slipper is resisted against on the broad side surface of eccentric body respectively.
Further improvement project is: the end of eccentric body is provided with circular end cap, establishes circular connected unit between eccentric body and axle drive shaft.The effect of end cap is, ensures stablizing of eccentric body and main brake block and secondary slipper mutual alignment relation.
During car brakeing, pull crank throw, rotate eccentric body, eccentric body is due to eccentric structure, and eccentric body can drive the end of main brake block to move rapidly outward, first main brake block produces braking force, along with being rotated further of eccentric body, main brake block can drive secondary slipper servo-actuated by adapter shaft, and eccentric body can drive the end of secondary slipper slowly to move outward simultaneously, until two slipper all produce braking force, reach the object of brake.Unclamp crank throw, eccentric body, major-minor slipper can reset under the effect of extension spring.
The present invention, because eccentric body is flat-shaped cylinder, the force structure close to stress balance is there will not be when braking, simultaneously, because eccentric body has motivator to main brake block and secondary slipper, be in dynamic stress, therefore, do not unclamp the generation of i.e. stuck phenomenon after greatly reducing brake locking, there is anti-seize effect.
Accompanying drawing explanation
Fig. 1 is eccentric cam shaft A scheme graphics of the present invention.
Fig. 2 is eccentric cam shaft A scheme front view.
Fig. 3 is eccentric cam shaft A scheme left view.
Fig. 4 is eccentric cam shaft A scheme birds-eye view.
Fig. 5 is eccentric cam shaft B scheme graphics.
Fig. 6 is servant brake schematic perspective view (outside) of the present invention.
Fig. 7 is servant brake schematic perspective view (inner side).
Fig. 8 is fuse-box schematic perspective view.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further details.
As shown in Figure 1,2,3, 4, eccentric camshaft for servo brake 8, is made up of successively crank throw connecting portion 81, axle drive shaft 82, eccentric body 83.Eccentric body is flat-shaped cylinder, and two narrow side is arc surface; The longitudinal centerline 84 of eccentric body is parallel with drive axis 85 and keep the distance that sets.
Adopt the structure of the servant brake of eccentric cam shaft of the present invention: as shown in Fig. 6,7,8.Servant brake 1, comprises fuse-box 2, main brake block 12, secondary slipper 14, crank throw 10, eccentric cam shaft 8; Fuse-box is provided with eccentric cam shaft mounting hole 27 and the servo-actuated hole 24 of adapter shaft.One end of main brake block and secondary slipper is hinged by adapter shaft 5, and adapter shaft 5 is arranged in the servo-actuated hole 24 of adapter shaft.Pad 3 is sleeved on adapter shaft 5, and inside jam nut 4, jam nut 4 is sleeved on adapter shaft 5, for the axial motion of fixed connection shaft 5 on fuse-box 2.Adapter shaft 5 one end is contained on main brake block and secondary slipper, and be used for supporting main brake block and secondary slipper and rotate, one end is contained in the servo-actuated hole 24 of fuse-box adapter shaft, and when guaranteeing to brake, main brake block and secondary slipper is servo-actuated, increases braking force.Axis mounting hole 6 is used for installing brake on motor axis.
Camshaft 8 is arranged in eccentric cam shaft mounting hole 27, crank throw 10 is installed in one end outside camshaft fuse-box, crank throw jam nut 7 coordinates for locking crank throw 10 with crank throw lock screw 9, makes crank throw be fixed on eccentric cam shaft 8, and the crank throw of crank throw stops line mounting hole 11 for connecting line of stopping.In camshaft fuse-box, end, one end is eccentric body 83.Establish extension spring (also known as slipper reset tension spring) 18 between the other end end of main brake block and secondary slipper, the end of main brake block and secondary slipper is resisted against on the broad side surface of eccentric body 83 respectively.
As shown in Figure 5, the end of eccentric body is provided with circular end cap 86, establishes circular connected unit 87 between eccentric body and axle drive shaft.The effect of end cap is, ensures stablizing of eccentric body and main brake block and secondary slipper mutual alignment relation.
Water storage tank 13 is opened in fuse-box 2 outer circumferential edge inwall, and draining is used.Line permanent seat 15 of stopping is positioned at the top, fuse-box head 17 limit of fuse-box 2, with line fixed orifice 23 of stopping, for installing line pallial line of stopping.Head mounting hole 16 is positioned on fuse-box head 17, for fixing fuse-box 2 on vehicle frame.Servo-actuated reset tension spring 21 one end is hooked on servo-actuated reset tension spring 19 permanent seat, and the other end is hooked on secondary slipper 14.
Claims (2)
1. an eccentric camshaft for servo brake, is made up of successively crank throw connecting portion, axle drive shaft, eccentric body; It is characterized in that: described eccentric body is flat-shaped cylinder, two narrow side is arc surface; The longitudinal centerline of eccentric body is parallel with drive axis and keep the distance that sets.
2. eccentric camshaft for servo brake according to claim 1, is characterized in that: the end of described eccentric body is provided with circular end cap, establishes circular connected unit between eccentric body and axle drive shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210354074.6A CN102815218B (en) | 2012-09-21 | 2012-09-21 | Eccentric camshaft for servo brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210354074.6A CN102815218B (en) | 2012-09-21 | 2012-09-21 | Eccentric camshaft for servo brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102815218A CN102815218A (en) | 2012-12-12 |
| CN102815218B true CN102815218B (en) | 2015-01-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210354074.6A Active CN102815218B (en) | 2012-09-21 | 2012-09-21 | Eccentric camshaft for servo brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102815218B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005009508A (en) * | 2003-06-16 | 2005-01-13 | Akebono Brake Ind Co Ltd | Drum brake device |
| CN200981626Y (en) * | 2006-10-31 | 2007-11-28 | 杨荣富 | Eccentric cam axis for bicycle and electric vehicle servo brake and servo lock |
| CN201196230Y (en) * | 2008-01-29 | 2009-02-18 | 唐泽交通器材(泰州)有限公司 | Rotation shaft for expansion brake of electric car |
| CN101704394A (en) * | 2009-11-21 | 2010-05-12 | 上海百顺锁业有限公司 | Adjuster for hub-brake of electric vehicle |
| CN101723044A (en) * | 2008-10-27 | 2010-06-09 | 汤志山 | Integrated camshaft member for electric vehicle front hub brake |
| CN202765201U (en) * | 2012-09-21 | 2013-03-06 | 唐泽交通器材(泰州)有限公司 | Eccentric camshaft for servo brake |
-
2012
- 2012-09-21 CN CN201210354074.6A patent/CN102815218B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005009508A (en) * | 2003-06-16 | 2005-01-13 | Akebono Brake Ind Co Ltd | Drum brake device |
| CN200981626Y (en) * | 2006-10-31 | 2007-11-28 | 杨荣富 | Eccentric cam axis for bicycle and electric vehicle servo brake and servo lock |
| CN201196230Y (en) * | 2008-01-29 | 2009-02-18 | 唐泽交通器材(泰州)有限公司 | Rotation shaft for expansion brake of electric car |
| CN101723044A (en) * | 2008-10-27 | 2010-06-09 | 汤志山 | Integrated camshaft member for electric vehicle front hub brake |
| CN101704394A (en) * | 2009-11-21 | 2010-05-12 | 上海百顺锁业有限公司 | Adjuster for hub-brake of electric vehicle |
| CN202765201U (en) * | 2012-09-21 | 2013-03-06 | 唐泽交通器材(泰州)有限公司 | Eccentric camshaft for servo brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102815218A (en) | 2012-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20121212 Assignee: Jiangsu Xinri E-vehicle Co., Ltd. Assignor: KARASAWA TRAFFIC EQUIPMENT (TAIZHOU) CO., LTD. Contract record no.: 2015320010157 Denomination of invention: Eccentric camshaft for servo brake Granted publication date: 20150121 License type: Exclusive License Record date: 20151123 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170823 Address after: 225300 Phoenix West Road, Jiangsu, Taizhou, No. 58 Co-patentee after: Jiangsu Xinri E-vehicle Co., Ltd. Patentee after: KARASAWA TRAFFIC EQUIPMENT (TAIZHOU) CO., LTD. Address before: 225300 Phoenix West Road, Jiangsu, Taizhou, No. 58 Patentee before: KARASAWA TRAFFIC EQUIPMENT (TAIZHOU) CO., LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171201 Address after: 225300 Phoenix West Road, Jiangsu, Taizhou, No. 58 Patentee after: KARASAWA TRAFFIC EQUIPMENT (TAIZHOU) CO., LTD. Address before: 225300 Phoenix West Road, Jiangsu, Taizhou, No. 58 Co-patentee before: Jiangsu Xinri E-vehicle Co., Ltd. Patentee before: KARASAWA TRAFFIC EQUIPMENT (TAIZHOU) CO., LTD. |