CN2818206Y

CN2818206Y - Brake of gearshift rear bridge of automobile

Info

Publication number: CN2818206Y
Application number: CN 200520009901
Authority: CN
Inventors: 周家济
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-05
Filing date: 2005-09-05
Publication date: 2006-09-20
Anticipated expiration: 2015-09-05

Abstract

The utility model relates to a brake of a gear reverse rear bridge of an automobile, which comprises bevel gears, a shifting fork, a claw dish, a skeleton type oil seal, a chain wheel, a washer, a chain wheel base, an adjusting shim, a base of a brake disc for braking, a locking nut, a lining sleeve, a bearing, a right bearing base, a sleeve barrel, a rear bridge shaft, the brake disc for braking, a screw bolt, a supporting board of a brake and the brake. The utility model is characterized in that the circumference surface of the middle part of the rear bridge shaft is provided with a segment of teeth, and these teeth are matched with a tooth sleeve. The tooth sleeve is further matched with the internal teeth of the base of the brake disc for braking, and the base of the brake disc for braking is connected with the brake disc for braking through the screw bolt. The rear bridge shaft between the left bevel gear and the right bevel gear is provided with synchronous tooth clutches which are respectively engaged with the tooth rings of the rabbets of the left bevel gear and the right bevel gear under the action of the shifting fork. The utility model overcomes the defect of the prior art that driving members are easy to be damaged caused by emergency braking in the high-speed running of the automobile.

Description

Self-propelled vehicle reverse gear back axle brake equipment

Technical field

The utility model relates to a kind of stop mechanism, particularly relates to a kind of self-propelled vehicle reverse gear back axle brake equipment.

Background technology

At present, the beach buggy of domestic production band reverse gear back axle, the cruising of from the engine starting to the car load, starting to walk, need to realize through chain-sprocket wheel-a series of power transmission of chain tire dish-right gear-power-transfer clutch-rear axle beam, yet when beach buggy ran into sudden incident emergency braking in running at high speed, messenger chain was under the mutual action of huge braking force and force of inertia, drive disk assembly is damaged easily, thus the safety misadventure of causing.Facts have proved: domestic production exports the producer of this type beach buggy, has nearly all received the message of the clutch claw generation fracture that importer is transmitted.

So, why does fracture take place in the clutch claw of beach buggy easily when emergency braking? trace it to its cause, can reduce following 4 points: the first, sprocket wheel and braking brake dish are fixedly connected on the same base, unreasonable structure; The second, in the messenger chain the weakest position in other words the focal point of stress in the messenger chain at the root of clutch claw; Three, power-transfer clutch is in the course of processing, and the right alignment of its four pawls is difficult to be consistent with the right alignment in four holes of right gear, has caused to be difficult to guarantee that four paws is simultaneously stressed when work, and normally monodactyle is stressed, and its design is unreasonable, fabrication properties is poor; Four, because the power-transfer clutch monodactyle is stressed, it is reduced by force intensity greatly, the power-transfer clutch made from No. 45 steel is an example, the cross-sectional area of monodactyle is 61 a kilograms/square millimeter, stressed 3200 kgfs that are about of its monodactyle, when emergency braking, in case application force is worth greater than this, fracture takes place power-transfer clutch just becomes inevitable.

In sum, the beach buggy of present band reverse gear of producing, because the design-calculated defective, its back axle brake force transmission mechanism exists comparatively serious potential safety hazard.

Summary of the invention

When the purpose of this utility model is to provide a kind of beach buggy to run into sudden incident emergency braking in running at high speed, the self-propelled vehicle reverse gear back axle brake equipment that its transmission component can not damage.

The purpose of this utility model can reach by following measure, that is: this self-propelled vehicle reverse gear back axle brake equipment, be at existing beach buggy, improve on the kart chain-driving reverse gear back axle assembly basis and form, comprise finishing bevel gear cuter, shift fork, the pawl dish, the skeleton type oil sealing, sprocket wheel, packing ring, chain pulley seat, regulate pad, braking brake dish seat, jam nut, lining, bearing, the right bearing seat, sleeve, rear axle beam, the drag dish, bolt, the drg stay bearing plate, drg etc., its key is: be provided with one section tooth on the side face of rear axle beam middle part, these teeth cooperate with the tooth cover, tooth on the tooth cover outer peripheral face cooperates with the internal tooth of braking brake dish seat, and braking brake dish seat then is connected with the braking brake dish by bolt; On the rear axle beam between the left and right finishing bevel gear cuter, be equipped with one under the shift fork effect, respectively with the synchronous tooth-like clutch of gear ring ingear of left and right finishing bevel gear cuter stop portion.

Position and the position of chain pulley seat of described braking brake dish seat on rear axle beam is adjacent.

Described tooth cover is the little modulus awl tooth cover of external tooth in being provided with.

The utility model compared with prior art has following characteristics:

One, power transmission of the present utility model and brake structure have commonality, are not only applicable to four-wheeled, and be suitable equally to three-wheel vehicle;

Two, the utility model makes sprocket wheel successfully separate with braking brake dish common-base, independent parts are made in the combination of braking brake dish, be connected with rear axle by awl tooth cover, the point of action of glancing impact force of inertia is concentrated on the rear axle beam, and clutch claw or tooth are unlikely to be subjected to the effect of force of inertia and to fracture thereby protected in the back axle gear case;

Three, the utility model has changed the structure of clutch claw and left and right finishing bevel gear cuter, the change clutch claw is synchronous tooth-like clutch, stressed synchronously on circumference when making vehicle can really reach power-transfer clutch in the process of moving to cooperate with left and right finishing bevel gear cuter, thus the stress-bearing capability of tooth portion increased.

Owing to taked abovementioned technology, fundamentally eliminated the comparatively serious potential safety hazard that back axle brake force transmission mechanism exists in the prior art.

Description of drawings

Fig. 1 is an overall construction drawing of the present utility model;

Fig. 2 is Figure 1A portion enlarged drawing;

Fig. 3 is Figure 1B-B section-drawing.

The specific embodiment

Below with reference to accompanying drawing concrete structure of the present utility model and service condition are further described.

Referring to Fig. 1,2,3, the utility model atv motorcycle chain-driving reverse gear back axle is braked a force transmission mechanism of stopping, comprise the left angular wheel 1 that is installed in successively from left to right on the rear axle beam 21, synchronous tooth-like clutch 3, right finishing bevel gear cuter 5, pawl dish 6, skeleton type oil sealing 7, bearing 27, packing ring 9, bearing 26, tooth cover 12, regulate pad 11, lining 15, bearing 16,17, sleeve 20, before finishing bevel gear cuter 2 be contained in that another axle is gone up and with a left side, right finishing bevel gear cuter 1,5 engagements, shift fork 4 is stuck in the groove of synchronous tooth-like clutch 3, and chain pulley seat 10 cooperates endoporus and bearing 26,27 transition fit, its end face passes through seam, bolt and pawl dish 6, and then be connected with sprocket wheel 8; On rear axle beam 21 middle part side faces, be provided with one section tooth, these teeth cooperate with tooth cover 12, and the outer peripheral face of tooth cover 12 has tooth, is connected with braking brake dish seat 13 by these teeth, braking brake dish seat 13 is connected with braking brake dish 22 by bolt, and jam nut 14 overlaps 12 thread connection with tooth; Right bearing seat 18 matches with bearing 16,17, in the annular space that hole and sleeve 20 are constituted skeleton type oil sealing 19 is housed within it, on rear bearing block 18, is connected with drg 25 by bolt 23, drg stay bearing plate 24.

According to the above-mentioned self-propelled vehicle reverse gear back axle brake equipment that assembles, its working process such as following:

When moving ahead, engine starting also drives sprocket wheel 8, pawl dish 6, right finishing bevel gear cuter 5 by chain, engages with synchronizing clutch 3 by right finishing bevel gear cuter stomidium internal tooth, is rotated by the female splines drive rear axle beam of synchronous tooth-like clutch 3, thereby car load is moved ahead;

When reverse gear is travelled, move shift fork 4 left, make synchronous tooth-like clutch 3 break away from right finishing bevel gear cuter 5, enter indented joint in left angular wheel 1 stomidium and its, engine starting also drives sprocket wheel 8, pawl dish 6, right finishing bevel gear cuter 5, preceding finishing bevel gear cuter 2 by chain, left angular wheel 1, engage with synchronous tooth-like clutch by the left angular wheel endoporus, drive the rear axle beam contrarotation by synchronous tooth-like clutch female splines, thereby car is retreated;

During drag, drg 25 blocks braking brake dish 22, and by braking brake dish seat 13, the tooth cover 12 that is connected is delivered to rear axle beam 21 with brake control power, and rear axle beam is braked rapidly, makes the car stagnation of movement.

Claims

1, a kind of self-propelled vehicle reverse gear back axle brake equipment, comprise finishing bevel gear cuter, shift fork, the pawl dish, the skeleton type oil sealing, sprocket wheel, packing ring, chain pulley seat, regulate pad, braking brake dish seat, jam nut, lining, bearing, the right bearing seat, sleeve, rear axle beam, the drag dish, bolt, the drg stay bearing plate, drg, it is characterized in that: on the side face of rear axle beam (21) middle part, be provided with one section tooth, these teeth cooperate with tooth cover (12), tooth on the tooth cover outer peripheral face cooperates with the internal tooth of braking brake dish seat (13), and braking brake dish seat (13) then is connected with braking brake dish (22) by bolt; On the rear axle beam (21) between the left and right finishing bevel gear cuter (1,5), be equipped with under shift fork (4) effect, respectively with the synchronous tooth-like clutch of gear ring ingear (3) of left and right finishing bevel gear cuter stop portion.

2, self-propelled vehicle reverse gear back axle brake equipment according to claim 1, it is characterized in that: described synchronous tooth-like clutch (3) is to be solidly set on the rear axle beam (21), and is positioned at the straight gear of shift fork (4) both sides.

3, self-propelled vehicle reverse gear back axle brake equipment according to claim 1 is characterized in that: position and the position of chain pulley seat (10) of described braking brake dish seat (13) on rear axle beam (21) is adjacent.

4, self-propelled vehicle reverse gear back axle brake equipment according to claim 1 is characterized in that: described tooth cover (12) is the little modulus awl tooth cover of external tooth in being provided with.