CN201253829Y

CN201253829Y - BJ type constant velocity universal joint demounting apparatus for saloon car driving axle

Info

Publication number: CN201253829Y
Application number: CNU200820067470XU
Authority: CN
Inventors: 杜志安
Original assignee: XIANGYANG AUTOMOBILE BEARING CO Ltd
Current assignee: XIANGYANG AUTOMOBILE BEARING CO Ltd
Priority date: 2008-05-26
Filing date: 2008-05-26
Publication date: 2009-06-10
Anticipated expiration: 2018-05-26

Abstract

The utility model discloses a BJ-type constant-velocity universal joint disassembly device used for a car drive shaft and belongs to the car constant-velocity universal joint manufacturing and maintenance technical field. The utility model provides a device which can disassemble the car drive shaft BJ-type constant-velocity universal joint to mainly solve the problems that the prior art adopts a hammer and a chisel to knock on the end face of an outer sleeve to result in damage to the outer sleeve, an inner sleeve and steel ball. The utility model is mainly characterized in that the device comprises a double-semi inner ring, an outer ring and a retaining ring; wherein, the inner circle and the convex ribs of the double-semi inner ring are matched with an intermediate shaft of the car drive shaft and a catch hoop slot on the intermediate shaft; the outer ring is provided with an opening slot and symmetrically distributed promoting bolts; the outer ring is wedged on the external diameter of the double-semi inner ring; the retaining ring is located at the lateral part of the outer ring and can be arranged on the intermediate shaft; and the retaining ring is provided with an end face which can act on a lug boss on the end face of the inner sleeve of the BJ-type constant-velocity universal joint. The disassembly device can rapidly and highly efficiently disassemble the BJ-type constant-velocity universal joint of the car drive shaft without damage. The utility model is mainly used to disassemble the BJ-type constant-velocity universal joint of the car drive shaft.

Description

Dismounting device of BJ type constant velocity universal joint used for car drive shaft

Technical field

The utility model belongs to the car constant velocity cardan joint and makes and the maintenance technique field.Be specifically related to the provision for disengagement of a kind of car driving shaft BJ type constant velocity cardan joint.

Background technology

The car driving shaft uses the structure of BJ constant velocity cardan joint shown in the left-half of Fig. 1.It is made up of jackshaft 1, overcoat 2 (bell cover), interior cover 3 (inner race), retainer 4, elastic spring 5, rubber seal cover 7 and six steel balls 6, and interior cover 3 is stuck on the jackshaft 1 by elastic spring 5.This constant velocity cardan joint is filled with lubricating grease in its inside when work, when assembling and maintenance, for renewal part (as cover, retainer, rubber seal cover in jackshaft, the overcoat) and lubricating grease, need take BJ type constant velocity cardan joint apart.

The method for dismounting of car constant velocity cardan joint manufactory, automobile assembly plant and automobile maintenance station all is with hammer and chisel for a long time, after pulling down the rubber seal cover, knock on the end face 8 of overcoat 2, the route of percussion power transmission is: the overcoat raceway---steel ball---interior cover raceway---elastic spring.The method of this dismounting BJ type constant velocity universal joint used for car drive shaft exists not enough, because percussion power is inhomogeneous on circumference, and need just can take apart with very big power, waste time and energy, bring damage in unloading process, must for overcoat end face, interior overcoat raceway and steel ball, and these parts can not be used again, belong to destructive dismounting.

Concerning car constant velocity cardan joint manufactory, when needing dismounting, adopt this method that many parts are scrapped in case find BJ type constant velocity cardan joint the assembling abnormal conditions to occur, waste bigger.In addition, when experiment detects, adopt this method not only to cause waste, and be difficult for the part that check and analysis are test damages, still removing damaged part.

Concerning the car maintenance station, no matter be to change lubricating grease, still change damaged parts, adopt this method must make a plurality of damage parts or scrap, cause unnecessary loss to the client.

Though this method for dismounting causes many unnecessary damage parts, and wastes time and energy, people still do not invent out better method and device for a long time, thereby are that people want to solve and open question for a long time always.

Summary of the invention

The purpose of this utility model is to eliminate above-mentioned deficiency, provide a kind of can be quick, efficient and undamaged the device of non-destructive dismounting car driving shaft BJ type constant velocity cardan joint.

Technical solution of the present utility model is: a kind of dismounting device of BJ type constant velocity universal joint used for car drive shaft is characterized in that: be made of two half interior ring, outer shroud, baffle ring; Wherein, in two half in the ring jackshaft of circle and convex tendon and car driving shaft and on snap-ring groove match; Outer shroud is provided with the promotion bolt of open slot and symmetrical distribution, and is installed on two half outside diameter of inner rings; Baffle ring is positioned at the sidepiece of outer shroud, can be loaded on the jackshaft, which is provided with end face and can act on the boss on the cover end face in the BJ type constant velocity cardan joint.

Outer shroud described in the utility model technical solution is provided with axial tapped through hole and firm screw rod.

The promotion bolt of the symmetrical distribution described in the utility model technical solution is the promotion bolt of three symmetrical distributions.

The utility model is owing to adopt by two half interior ring, outer shroud, the car driving shaft BJ type constant velocity cardan joint provision for disengagement that baffle ring constitutes, like this when dismounting car driving shaft BJ type constant velocity cardan joint, take the rubber seal cover earlier apart, expose snap-ring groove, two half interior ring is contained on the snap-ring groove, and outer shroud is installed on the external diameter of ring dress in two half, play axial location, again baffle ring is loaded on the jackshaft, makes raised head face aim at interior cover end face, each augering screw of order precession, the whole end face of cover is evenly stressed in making, force elastic spring evenly to be pressed in the groove, cover withdraws from making, and each part all be can't harm take apart at last.The dismounting of suitable all BJ type constant velocity universal joint used for car drive shaft of the utility model provision for disengagement such as BJ68, BJ71, BJ75, BJ79, BJ87, BJ95, BJ100, BJ112, BJ125 constant velocity cardan joint., use through reality with BJ75 type constant velocity cardan joint with the utility model provision for disengagement dismounting car driving shaft, the operator of factory just pulled down a car driving shaft with 1 minute with BJ75 type constant velocity cardan joint, and each part not damaged of constant velocity cardan joint.Adopt the utility model provision for disengagement dismounting BJ type constant velocity universal joint used for car drive shaft to have quick, efficient and undamaged characteristics.The utility model is mainly car constant velocity cardan joint manufactory, automobile assembly plant and automobile maintenance station a kind of dismounting device of BJ type constant velocity universal joint used for car drive shaft is provided.

Description of drawings

Fig. 1 is the structural representation of car driving shaft with the BJ constant velocity cardan joint;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is the structural representation of two half interior rings in the utility model;

Fig. 4 is the left view of Fig. 3;

Fig. 5 is the structural representation of outer shroud in the utility model;

Fig. 6 is the left view of Fig. 5;

Fig. 7 is the structural representation of baffle ring in the utility model;

Fig. 8 is the left view of Fig. 7.

The specific embodiment

Extremely shown in Figure 8 as Fig. 1.Utilize the snap-ring groove 9 of constant velocity cardan joint rubber seal cover 7 on jackshaft 1, adopt ring 10 in two half, its inner headed face and convex tendon respectively with jackshaft 1 and snap-ring groove 9 corresponding matching, ring 10 can be contained on the snap-ring groove 9 preferably in two half, plays axial location.Outer shroud 11 is contained on the external diameter of ring 10 in two half, and outer shroud 11 has an open slot 14 big slightly with jackshaft 1 diameter, by open slot 14, is loaded on earlier on the jackshaft 1, refills on the external diameter of ring 10 in two half.Outer shroud 11 circumferencial directions are uniform adorns three M12 push bolt 15.Outer shroud 11 is provided with axial tapped through hole, by ring 10 in screw 13 tightenings two half.

Same processing open slot can directly be inserted on the jackshaft 1 on the baffle ring 12, and its sidepiece is provided with boss 16, and boss 16 external diameters are less than interior cover 3 external diameters, and boss 16 left sides lean against on the right side of interior cover 3.

For jackshaft 1 such optical axis and universal joint, utilize snap-ring groove 9 location to take root, be key point of the present utility model.

During dismounting, order is evenly rotated three M12 bolts 15 on the outer shroud 11, and the push and block ring 12 left, can be like a cork interior cover 3 be pulled down from jackshaft, reaches the dismounting purpose.

Claims

1, a kind of dismounting device of BJ type constant velocity universal joint used for car drive shaft is characterized in that: encircle (10), outer shroud (11), baffle ring (12) formation in two half; Wherein, in two half in the ring (10) jackshaft (1) of circle and convex tendon and car driving shaft and on snap-ring groove (9) match; The promotion bolt (15) that outer shroud (11) is provided with open slot (14) and is symmetrically distributed, and be installed on two half interior ring (10) external diameter; Baffle ring (12) is positioned at the sidepiece of outer shroud (11), can be loaded on the jackshaft (1), which is provided with end face and can act on the boss (16) on the cover end face in the BJ type constant velocity cardan joint.

2, a kind of dismounting device of BJ type constant velocity universal joint used for car drive shaft according to claim 1 is characterized in that: described outer shroud (11) is provided with axial tapped through hole and firm screw rod (13).

3, a kind of dismounting device of BJ type constant velocity universal joint used for car drive shaft according to claim 1 and 2 is characterized in that: the promotion bolt (15) of described symmetrical distribution is the promotion bolt of three symmetrical distributions.