CN201109421Y - Parking brake mechanism of dune motorcycle - Google Patents
Parking brake mechanism of dune motorcycle Download PDFInfo
- Publication number
- CN201109421Y CN201109421Y CNU2007201879878U CN200720187987U CN201109421Y CN 201109421 Y CN201109421 Y CN 201109421Y CN U2007201879878 U CNU2007201879878 U CN U2007201879878U CN 200720187987 U CN200720187987 U CN 200720187987U CN 201109421 Y CN201109421 Y CN 201109421Y
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- Prior art keywords
- parking
- cam
- brake lever
- axle
- brake
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Abstract
The utility model discloses a vehicle-halting braking device of a dune buggy, a cam used for halting the vehicle is arranged on a gear shift cam shaft, the far stopping stroke end of the cam is a halting gear, a brake disc which is circumferentially provided with a plurality of rectangular teeth and used for halting the vehicle is fixed on a transmission main shaft on the circumferential direction, a brake lever is arranged between the brake disc and the cam, a tension arm of the brake lever is attached on the circumferential face of the cam which is used for halting the vehicle, the end face of an actuating arm is correspondent to the rotation direction of a main shaft, the fixed pivot of the brake lever is a shaft which is between and parallel to the transmission main shaft and the gear shift cam shaft, the shaft passes through the brake lever and is clearance-fitted with the brake lever, both ends of the shaft are supported by a crank case, and an offsetting spring of the brake lever is arranged on the shaft. The braking device is arranged inside an engine, the braking operation is controlled via a gear shift device, thereby being highly safe, reliable and easy and convenient to operate.
Description
Technical field
The utility model relates to a kind of stop mechanism, particularly a kind of parking and braking mechanism of beach buggy.
Background technology
Beach buggy is a four-wheel motor cycle, and its volume is bigger, Heavy Weight, and after the parking Parking, when particularly stopping on the slope, because it from great, is easy under the effect of external force, generation is slided, and causes the accident.Therefore, must the design parking and braking mechanism, just can guarantee the safety after the beach buggy Parking.The braking during standstill of existing beach buggy, it is the brake system of utilizing on the car, a braking during standstill control mechanism is set on the direction handgrip of beach buggy again, as shown in Figure 3, handle bracket 2 is installed on direction handle pipe 3, brake handle 7 is installed on the handle bracket 2 by bearing pin 6, brake handle can freely rotate around bearing pin, brake line 8 one ends pass handle bracket and are connected with brake handle, the other end connects with the pull bar of the brake equipment that is connected wheel, the boss 2a of handle bracket goes up by bearing pin 4 a braking during standstill piece 1 is installed, torsion spring 5 is installed on bearing pin 4, and torsion spring one end leans against on the handle bracket, and the other end hooks the braking during standstill piece, under the effect of torsion spring, but braking during standstill piece self-return.When the parking Parking, need with a hand-tight brake handle of holding, make the brake equipment of wheel be in braking state, press the braking during standstill piece with the another hand, the braking during standstill piece is stuck between brake handle and the handle bracket, the lock brake handle position, make the brake handle can not return, unclamp the hand of holding brake handle then, brake handle clamps the braking during standstill piece under the effect of brake line, makes the braking during standstill piece can not return, thereby makes wheel be in braking mode always, stop wheel, realize braking during standstill in this way.When needs are removed Parking, only need hold brake handle, releasing is to the gripping power of braking during standstill piece, the braking during standstill piece rebounds under the effect of torsion spring automatically, the brake handle self-return, braking during standstill is removed, and brake handle is under the effect of brake line, its shoulder 7a abuts against on the handle bracket, forms free state.There is following some deficiency in the parking and braking mechanism of this structure:
The one, this parking and braking mechanism is installed on the handgrip, and each parts all is naked state, if bump brake handle under unconscious situation, the braking during standstill piece rebounds automatically, the latch-release of parking and braking mechanism, thus cause braking during standstill to be removed, to cause safety misadventure, so its safety is low.The 2nd, brake line is in running order always behind the braking during standstill, causes fatigue easily, thereby causes braking gap to increase, and buries traffic safety hidden danger.The 3rd, need hand-tightly hold brake with one during braking during standstill, the another hand is pressed the braking during standstill piece, employs both hands simultaneously, and operation is comparatively complicated, and parking and braking mechanism is set on steering handle, to the influence that can produce to a certain degree attractive in appearance of car load.
Summary of the invention
The objective of the invention is the problem at above-mentioned prior art existence, a kind of parking and braking mechanism of beach buggy is provided, it is built in the driving engine, by the gearshift control brake, and existing extremely strong safe reliability, simple to operation again.
The object of the present invention is achieved like this: comprise the parallel shifting cam axle that is supported in crankcase, transmission main shaft, a cam that is used for Parking is set on the shifting cam axle, this cam far stop the Parking gear that Cheng Duan is the shifting cam axle, circumferential brake disc that is used for Parking of captive joint on the transmission main shaft, this brake disc be evenly distributed in a plurality of rectangular teeths that radially extend, the tooth depth of this rectangular teeth is less than the operating altitude of the cam that is used for Parking, be used for the brake disc of Parking and be used for being provided with a brake lever between the cam of Parking, the arm of force of brake lever is pasting the cam side face that is used for Parking, the direction of the corresponding main axis rotation of weighing arm end face, the fulcrum of brake lever is the axle that is parallel between transmission main shaft and the shifting cam axle, this axle passes brake lever and free-running fit with it, the two end supports of axle is in crankcase, one reduction torsion spring is enclosed within on the axle, the one end is positioned crankcase, and the other end and brake lever overlap and grant precompressed compression.
Owing to adopted such scheme, a cam that is used for Parking is set on the shifting cam axle, cam far stop the Parking gear that Cheng Duan is the shifting cam axle, circumferential brake disc that is used for Parking of captive joint on transmission main shaft, brake disc be evenly distributed in a plurality of rectangular teeths that radially extend, at the brake disc that is used for Parking and be used for being provided with a brake lever between the cam of Parking, when Parking, by the shifting cam axle is gone to the Parking gear, the arm of force that far stops Cheng Duan jack-up brake lever of cam, make the weighing arm of brake lever move the tooth root circle that is pasting the brake disc that is used for Parking, the end face of weighing arm props up rectangular teeth, and the limiting transmission main shaft rotates realizes braking during standstill.Because the shifting cam shaft alignment at the Parking gear, forms the locking to braking during standstill thus.Because this parking and braking mechanism is to rotate by gearshift and brake lever restriction main shaft to realize braking during standstill, even under casual situation, collided shifting operating device, because power-transfer clutch is action simultaneously not, the shifting cam axle does not change gear, the locking of its braking during standstill can not be disengaged yet, and the safe reliability of braking during standstill is greatly improved.Because this parking and braking mechanism is by shifting cam axle control brake lever transmission main shaft to be braked, with the brake system of wheel without any relation, so during braking during standstill, the brake system of wheel is not worked, therefore can not cause brake line fatigue, braking gap can not increase yet, and has eliminated the traffic safety hidden danger that existing parking and braking mechanism is buried, and can prolong the service life of brake line simultaneously relatively yet.It is described that to be used for rectangular teeth uniform on the brake disc circumference of Parking be 3～6, both having made transmission main shaft rotate to the respective angles scope all has rectangular teeth to offset with brake lever, form braking during standstill, make brake lever again when work, there are enough spaces to move between two teeth for brake lever, prop up a tooth of service braking, it distributes rationally.The tooth depth of described rectangular teeth is less than the operating altitude of the cam that is used for Parking, can be after removing braking during standstill, the arm of force of brake lever can be close to the basic circle side face of the cam that is used for Parking under the effect of reduction torsion spring, the weighing arm end of brake lever leaves brake disc, unsettled above the brake disc tooth top circle, allow transmission main shaft can rotate freely the space, can not cause interference, motor bike is travelled.
The utility model parking and braking mechanism simple in structure, cost of manufacture is low, and is easy for installation, easy and simple to handle during braking during standstill, has stronger practicality, and brake safe is stable; And, the outward appearance of motor bike is not affected because of being arranged in the driving engine.Simultaneously, this parking and braking mechanism also can be used for the braking during standstill of motor-tricycle.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 be among Fig. 1 A-A to generalized section;
Fig. 3 is the structural representation of parking and braking mechanism of the prior art.
In the accompanying drawing 1,2,1 is the shifting cam axle, and 2 is brake lever, and 3 is reduction torsion spring, and 4 is axle, and 5 is brake disc, and 6 is main shaft, and 7 is rectangular teeth, and 8 is elastic collar, and 9 for being used for the cam of Parking.
The specific embodiment
Referring to Fig. 1, Fig. 2, the parking and braking mechanism of this beach buggy comprises transmission main shaft 6, the shifting cam axle 1 of driving engine, and the two is respectively by the crankcase of bearings in driving engine, and transmission main shaft 6, shifting cam axle 1 are the parastate setting.A cam 9 that is used for Parking is set on the described shifting cam axle 1, the cam 9 that is used for Parking is the structure of one machine-shaping with shifting cam axle 1, the cam 9 that perhaps is used for Parking adopts and is interference fitted in shifting cam axle 1, the cam 9 that perhaps is used for Parking adopts key to be fastened on shifting cam axle 1, all can reach the same effect that cam rotates with the shifting cam axle.This be used for Parking cam 9 far stop the Parking gear that Cheng Duan is a shifting cam axle 1, this Parking gear separates with the residing angle of other gear on the shifting cam axle 1.Circumferential one of captive joint is used for the brake disc 5 of Parking on transmission main shaft 6, and the brake disc 5 that is used for Parking adopts interference fit or spline to be connected transmission main shaft 6, all can reach same effect, and brake disc 5 can be rotated together with main shaft 6.The brake disc 5 that is used for Parking is arranged on the position of close main shaft 6 necks, can not influence the installation site of retaining gears at different levels on the main shaft, can not change the size of main shaft thus.The described brake disc 5 that is used for Parking be evenly distributed in a plurality of rectangular teeths 7 that radially extend, the rectangular teeth on the brake disc 5 is 3～6, leaves enough clearance spaces between tooth and the tooth and inserts for brake lever 2.For brake disc 5 not being come in contact with brake lever 2 under free state or rubbing, and the rectangular teeth that can prop up down brake disc in working order forms braking during standstill, and the tooth depth of the rectangular teeth 7 on the described brake disc 5 that is used for Parking is approximately less than the operating altitude of the cam 9 that is used for Parking.Be used for the brake disc 5 of Parking and be used for being provided with a brake lever 2 between the cam 9 of Parking, the arm of force of brake lever 2 is close to cam 9 side faces that are used for Parking, the direction of the corresponding main axis rotation of the weighing arm end face of brake lever 2, can contact with the rectangular teeth 7 on the brake disc during work, stop main shaft to rotate and the formation braking during standstill.The fulcrum of brake lever 2 is the axle 4 that is parallel between transmission main shaft 6 and the shifting cam axle 1, this 4 passes the hole that brake lever 2 stage casings are provided with and forms free-running fit, axially with 8 pairs of brake levers of elastic collar, 2 location, the two end supports of axle 4 is in crankcase, axle 4 is provided with the reduction torsion spring 3 of brake lever, reduction torsion spring 3 is enclosed within on the axle 4, the one end is positioned in the knock hole on the crankcase, the other end and brake lever 2 overlap and grant precompressed compression, the arm of force of brake lever 2 is close to the cam 9 that is used for Parking, when not having the state of braking during standstill, the weighing arm end is unsettled beyond the circumference of brake disc 5, not with brake disc on rectangular teeth 7 come in contact or rub, allow brake disc that enough revolution spaces are arranged, guarantee that motor bike can cruising.
The parking and braking mechanism of this beach buggy not only is confined to the foregoing description, the fulcrum of described brake lever 2 also can be used the declutch shift shaft of gearshift, adopt above-mentioned mode that brake lever 2 is installed on the declutch shift shaft, hole and declutch shift shaft that brake lever 2 stage casings are provided with form free-running fit, with 8 pairs of brake lever 2 axial location of elastic collar, reduction torsion spring 3 is enclosed within on the declutch shift shaft, the one end is positioned in the knock hole on the crankcase, the other end and brake lever 2 overlap and grant precompressed compression, also can make brake lever 2 realize being arranged on the brake disc 5 that is used for Parking and state between the cam 9 that is used for Parking, play the effect of braking during standstill.
When using the parking and braking mechanism braking during standstill of this beach buggy, after motor bike stops, adopt the mode of gearshift, handle gearshift and enter the Parking gear, the cam that is used for Parking on the shifting cam axle promotes the arm of force of brake lever and it is stopped at far to stop Cheng Duan formation locking, the weighing arm end of brake lever turns to the tooth root circle of the brake disc that is used for Parking and contacts, and from the place ahead of main axis rotation direction the reverse rectangular teeth that props up on the brake disc, brake disc and main shaft all can not be rotated, have this to form braking during standstill.Remove braking during standstill as need, still adopt the mode of gearshift, handle gearshift and withdraw from the Parking gear, the cam that is used for Parking rotates with the shifting cam axle, releasing is to the locking of brake lever, the arm of force that makes brake lever is close to the basic circle that is used for the cam of Parking, the weighing arm end of brake lever under the effect of reduction torsion spring, breaks away from the rectangular teeth of brake disc contact the releasing braking during standstill.It handles simple, and braking is reliable, even in the Parking of road surface, slope, yet can be steady stop just as brake, but do not rely on brake system again, can not cause any negative effect to brake system, and have more safety and reliability than brake system.
Except that above embodiment, the person of ordinary skill in the field makes the protection domain that the corresponding change of structure all should belong to claim of the present utility model not deviating under the principle of design situation of the present utility model.
Claims (6)
1. the parking and braking mechanism of a beach buggy, comprise the parallel shifting cam axle that is supported in crankcase, transmission main shaft, it is characterized in that: a cam that is used for Parking is set on the shifting cam axle, this cam far stop the Parking gear that Cheng Duan is the shifting cam axle, circumferential brake disc that is used for Parking of captive joint on the transmission main shaft, this brake disc be evenly distributed in a plurality of rectangular teeths that radially extend, the tooth depth of this rectangular teeth is less than the operating altitude of the cam that is used for Parking, be used for the brake disc of Parking and be used for being provided with a brake lever between the cam of Parking, the arm of force of brake lever is pasting the cam side face that is used for Parking, the direction of the corresponding main axis rotation of weighing arm end face, the fulcrum of brake lever is the axle that is parallel between transmission main shaft and the shifting cam axle, this axle passes brake lever and free-running fit with it, the two end supports of axle is in crankcase, one reduction torsion spring is enclosed within on the axle, and the one end is positioned crankcase, and the other end and brake lever overlap and grant precompressed compression.
2. the parking and braking mechanism of beach buggy according to claim 1 is characterized in that: the rectangular teeth on the described brake disc that is used for Parking is 3～6.
3. the parking and braking mechanism of beach buggy according to claim 1 is characterized in that: the described brake disc that is used for Parking adopts interference fit or spline to be connected transmission main shaft.
4. the parking and braking mechanism of beach buggy according to claim 1, it is characterized in that: described cam and the shifting cam axle that is used for Parking is structure as a whole.
5. the parking and braking mechanism of beach buggy according to claim 1, it is characterized in that: the described cam that is used for Parking is interference fitted in the shifting cam axle.
6. the parking and braking mechanism of beach buggy according to claim 1 is characterized in that: described brake lever by the elastic collar axial location on axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201879878U CN201109421Y (en) | 2007-10-17 | 2007-10-17 | Parking brake mechanism of dune motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201879878U CN201109421Y (en) | 2007-10-17 | 2007-10-17 | Parking brake mechanism of dune motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201109421Y true CN201109421Y (en) | 2008-09-03 |
Family
ID=39893946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201879878U Expired - Fee Related CN201109421Y (en) | 2007-10-17 | 2007-10-17 | Parking brake mechanism of dune motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201109421Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102424090A (en) * | 2011-09-24 | 2012-04-25 | 上海百顺交通器材有限公司 | Eccentric cam braking safety mechanism for braking device of electric vehicle |
| CN102829110A (en) * | 2012-08-28 | 2012-12-19 | 宁波科达制动器制造有限公司 | Mechanical parking device of dune buggy |
| EP2292503A3 (en) * | 2009-09-04 | 2013-10-09 | Honda Motor Co., Ltd. | Parking brake lever apparatus for vehicle |
| CN109372909A (en) * | 2018-04-08 | 2019-02-22 | 九江精密测试技术研究所 | Mechanical locking device based on lever fine motion principle rotating shaft |
| CN111059268A (en) * | 2019-11-18 | 2020-04-24 | 精进电动科技股份有限公司 | Gear shifting and parking structure of gearbox and execution method |
-
2007
- 2007-10-17 CN CNU2007201879878U patent/CN201109421Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2292503A3 (en) * | 2009-09-04 | 2013-10-09 | Honda Motor Co., Ltd. | Parking brake lever apparatus for 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 |
| CN102424090A (en) * | 2011-09-24 | 2012-04-25 | 上海百顺交通器材有限公司 | Eccentric cam braking safety mechanism for braking device of electric vehicle |
| CN102829110A (en) * | 2012-08-28 | 2012-12-19 | 宁波科达制动器制造有限公司 | Mechanical parking device of dune buggy |
| CN102829110B (en) * | 2012-08-28 | 2015-05-20 | 宁波科达制动器制造有限公司 | Mechanical parking device of dune buggy |
| CN109372909A (en) * | 2018-04-08 | 2019-02-22 | 九江精密测试技术研究所 | Mechanical locking device based on lever fine motion principle rotating shaft |
| CN111059268A (en) * | 2019-11-18 | 2020-04-24 | 精进电动科技股份有限公司 | Gear shifting and parking structure of gearbox and execution method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080903 Termination date: 20121017 |