KR20160043157A

KR20160043157A - Constant velocity joint

Info

Publication number: KR20160043157A
Application number: KR1020140130284A
Authority: KR
Inventors: 강환범
Original assignee: 현대위아 주식회사
Priority date: 2014-09-29
Filing date: 2014-09-29
Publication date: 2016-04-21

Abstract

According to the present invention, there is provided a hybrid vehicle comprising: a pair of fixed joints for hinging angle connected to a wheel side and a transmission side; and a multi-joint drive shaft for connecting the fixed joints to transmit power, , 2 stubs; A spider connecting the first and second stubs to each other; And a pair of connection ends connecting the pair of fixed joints to the first and second stubs, respectively.
According to this, since the drive shaft can absorb the amount of vehicle displacement, it becomes possible to unify the existing sliding type joint with the fixed type joint capable of the locking angle.
In addition, it is possible to warp the drive shaft so that the drive shaft can be excluded from interference with other components, and the design freedom of the vehicle can be ensured.

Description

CONSTANT VELOCITY JOINT

The present invention relates to a constant velocity joint.

In general, the constant velocity joint of a vehicle is provided with a fixed joint (BJ) capable of an angle of incidence of 46 to 50 degrees on the wheel side and a sliding type joint (TJ) capable of an angle of 23 to 30 degrees on the transmission side. ) To transmit the power, and a dynamic damper which reduces the vibration of the drive shaft due to high-speed rotation and the vibration of the drive shaft.

However, the conventional sliding type joint is essentially used to absorb the displacement of the vehicle, although the amount of reduction is limited as compared with the fixed type joint.

In addition, there is a problem that the drive shaft is made of a straight rigid body, which interferes with other parts around the lower body.

It is an object of the present invention to provide a constant velocity joint capable of ensuring the amount of joint of a joint on the transmission side and eliminating interference with other parts of the drive shaft.

In order to achieve the above object, according to one aspect of the present invention,

A pair of fixed joints 10 and 20 fixed to the wheel side and the transmission side and a multistage drive shaft 30 connecting the fixed joints 10 and 20 to transmit power,

The multi-tubular drive shaft (30) includes first and second stubs (31, 32) arranged horizontally; A spider (33) connecting the first and second stubs (31, 32) to each other; And a pair of connection ends 34 connecting the pair of fixed joints 10 and 20 with the first and second stubs 31 and 32, respectively.

According to the present invention,

And a connection portion between the first and second stubs 31 and 32 and the spider 33 and a connection portion between the first and second stubs 31 and 32 and the fixed joints 10 and 20, And a sealing portion 35 filled with the sealing material.

The first and second stubs (31, 32)

A pair of joint forming portions 31-1 and 32-1 extending symmetrically are formed at one end thereof and a pair of sliding portions 31-2 and 32-2 extending symmetrically at the other end, Respectively, are formed.

The joint forming portions 31-1 and 32-1 and the sliding portions 31-2 and 32-2 of the first and second stubs 31 and 32 are connected to the joint portions 31-1 and 32-2,

And the extending direction is machined to a position shifted by 90 degrees in the circumferential direction.

In each of the joint forming parts 31-1 and 32-1,

And the through holes 31-1a and 32-1a are formed.

The sliding portions (31-2, 32-2)

And has an arc shape, and is capable of sliding with an adjacent stub.

The spider (33)

The two cylinders are orthogonal to each other and each end is fastened to the through holes 31-1a and 32-1a of the joint forming parts 31-1 and 32-1.

The connecting end (34)

And a pair of joint forming parts 34-4 formed with a through hole 34-4a for joining with one of the stubs as a separate spider 33-1 at the end thereof.

The sealing portion (35)

Tubular synthetic rubber having elasticity is used and both ends of the tubular synthetic rubber are compression-caulked to the sealing part assembly (34-3) of the connecting end (34).

As described above, according to the constant velocity joint according to the present invention, the drive shaft can absorb the amount of vehicle displacement, and the existing sliding type joint can be unified with the fixed type joint capable of the angle of attack.

In addition, it is possible to warp the drive shaft so that the drive shaft can be excluded from interference with other components, and the design freedom of the vehicle can be ensured.

1 is a view showing a constant velocity joint according to an embodiment of the present invention,
2 is a view showing the inside of the portion 'A' in FIG. 1 and FIG.
Fig. 3 is a view showing both end connecting members of the drive shaft of Fig. 1. Fig.

Hereinafter, a constant velocity joint according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

1, a constant velocity joint according to an embodiment of the present invention includes a pair of fixed joints 10 and 20 for connecting to a wheel side and a transmission side, fixed joints 10 and 20, And a multi-pipe drive shaft 30 for connecting the drive shaft 30 and the drive shaft 30 to each other.

2, the multi-tubular drive shaft 30 includes first and second stubs 31 and 32, which are basic joint units; A spider (33) connecting the first and second stubs (31, 32) to each other; A pair of connection ends (34) connecting the pair of fixed joints (10, 20) and the first and second stubs (31, 32), respectively; And a connection portion between the first and second stubs 31 and 32 and the spider 33 and a connection portion between the first and second stubs 31 and 32 and the fixed joints 10 and 20, And a hermetically sealed portion 35 filled with the sealant.

The first and second stubs 31 and 32 are cylindrically-shaped and can be repeatedly assembled in a plurality of ways according to the layout of the vehicle. The first and second stubs 31 and 32 are symmetrically extended at one end thereof, And a pair of sliding portions 31-2 and 32-2 extending symmetrically are formed at the other end thereof, and are engaged with each other.

At this time, the joint forming portion 31-1 and the sliding portion 31-2 of the first stub 31 are machined to a position where the extending direction thereof is shifted by 90 degrees in the circumferential direction. The joint forming portion 32-1 and the sliding portion 32-2 of the second stub 32 are also located at positions shifted by 90 degrees in the circumferential direction. In addition, through holes 31-1a and 32-1a are formed in the joint forming parts 31-1 and 32-1. The sliding portions 31-2 and 32-2 are formed in an arc shape and slidable when assembled with the adjacent stubs to absorb the axial displacement.

The spider 33 has two cylinders orthogonally crossing each other and each end is connected to the through holes 31-1a and 32-1a of the joint forming parts 31-1 and 32-1. So that the first stub 31 and the second stub 32 are connected to each other. Thus, the first and second stubs 31 and 32 can be folded about the joint forming parts 31-1 and 32-1.

3, the connection end portion 34 is provided with a joint assembly portion 34-1 and a boot assembly portion 34-2 at regular intervals in the same manner as a normal drive shaft, A sealing part assembly 34-3 is further provided. In addition, a joint forming part 34-4 for joining with one of the stubs is provided as an additional spider 33-1 at the end of the connecting end part 34. [ The joint forming portion 34-4 also extends symmetrically and can be provided with a through hole 34-4a.

The hermetically sealed part 35 is a tubular hose having elasticity, and a synthetic rubber containing a reinforcing layer such as a wire is used therein. Both ends of the synthetic hose are connected to the sealing part assembly 34-3 of the connecting end part 34, Respectively.

According to the constant velocity joint of the present invention as described above, the drive shaft can absorb the amount of vehicle displacement, and the existing sliding type joint can be unified with the fixed type joint capable of the steering angle.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It is to be understood that various changes and modifications may be made without departing from the scope of the present invention.

Claims

A pair of fixed joints 10 and 20 fixed to the wheel side and the transmission side and a multistage drive shaft 30 connecting the fixed joints 10 and 20 to transmit power,
The multi-tubular drive shaft (30) includes first and second stubs (31, 32) arranged horizontally; A spider (33) connecting the first and second stubs (31, 32) to each other; And a pair of connecting ends (34) connecting the pair of fixed joints (10, 20) and the first and second stubs (31, 32), respectively.

The method according to claim 1,
And a connection portion between the first and second stubs 31 and 32 and the spider 33 and a connection portion between the first and second stubs 31 and 32 and the fixed joints 10 and 20, And a sealing part (35) filled with the sealing material.

The stapler according to claim 1, wherein the first and second stubs (31, 32)
A pair of joint forming portions 31-1 and 32-1 extending symmetrically are formed at one end thereof and a pair of sliding portions 31-2 and 32-2 extending symmetrically at the other end, ) Are formed on the outer circumferential surface of the joint.

4. The apparatus according to claim 3, wherein the joint forming portions (31-1) and (32-2) of the first and second stubs (31) and (32)
And the extending direction is machined to a position displaced by 90 degrees in the circumferential surface direction.

4. The method according to claim 3, wherein each of the joint forming parts (31-1, 32-1)
And the through holes (31-1a, 32-1a) are formed.

The sliding device according to claim 3, wherein the sliding portions (31-2, 32-2)
And is capable of sliding in engagement with an adjacent stub.

6. The spider according to claim 5, wherein the spider (33)
Wherein two cylinders are orthogonal to each other and each end is fastened to the through holes (31-1a, 32-1a) of the joint forming parts (31-1, 32-1).

2. A connector according to claim 1, wherein said connecting end (34)
And a pair of joint forming portions (34-4) provided with a through hole (34-4a) for joining with one of the stubs as a separate spider (33-1) is provided at the end thereof.

3. The connector according to claim 2, wherein the sealing portion (35)
Wherein a tubular synthetic rubber having elasticity is used and both ends are compression-caulked to the sealing part assembly (34-3) of the connecting end (34).