KR20160051575A - Shaft for connecting constant velocity joints and constant velocity joint assembly having the shaft for vehicle - Google Patents

Shaft for connecting constant velocity joints and constant velocity joint assembly having the shaft for vehicle Download PDF

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Publication number
KR20160051575A
KR20160051575A KR1020150115993A KR20150115993A KR20160051575A KR 20160051575 A KR20160051575 A KR 20160051575A KR 1020150115993 A KR1020150115993 A KR 1020150115993A KR 20150115993 A KR20150115993 A KR 20150115993A KR 20160051575 A KR20160051575 A KR 20160051575A
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KR
South Korea
Prior art keywords
velocity joint
constant velocity
fastener
shaft
constant
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Application number
KR1020150115993A
Other languages
Korean (ko)
Inventor
조정현
Original Assignee
현대위아 주식회사
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Priority to PCT/KR2015/008668 priority Critical patent/WO2016068465A1/en
Publication of KR20160051575A publication Critical patent/KR20160051575A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/005—Ball joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
    • B60K17/24—Arrangements of mountings for shafting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

TECHNICAL FIELD The present invention relates to a constant velocity joint connecting shaft and a constant velocity joint assembly for a vehicle having the same. More specifically, the constant velocity joint is inserted into both ends of a constant velocity joint connecting shaft, The present invention relates to a constant velocity joint connection shaft and a constant velocity joint assembly for a vehicle having such a shaft, which can protect the inner and outer rings of constant velocity joints from the outside.

Figure P1020150115993

Description

TECHNICAL FIELD [0001] The present invention relates to a constant velocity joint connecting shaft and a constant velocity joint assembly for a vehicle having the shaft,

TECHNICAL FIELD The present invention relates to a constant velocity joint connecting shaft and a constant velocity joint assembly for a vehicle having the same. More specifically, the constant velocity joint is inserted into both ends of a constant velocity joint connecting shaft, The present invention relates to a constant velocity joint connection shaft and a constant velocity joint assembly for a vehicle having such a shaft, which can protect the inner and outer rings of constant velocity joints from the outside.

Generally, a joint is for transmitting rotational power (torque) between rotational shafts having different angles of rotation axis. In the case of a propulsion shaft having a small power transmission angle, a hook joint, a flexible joint or the like is used. In the case of a drive shaft, a constant velocity joint is used.

The constant velocity joint includes a constant velocity joint connecting shaft for connecting between two constant velocity joints and the constant velocity joint when applied to a vehicle, and is also referred to as a constant velocity joint assembly.

In addition, since the constant velocity joint assembly can transmit power smoothly at a constant speed even when the angle of intersection between the drive shaft and the driven shaft is large, it is mainly used for the axle shaft of the independent suspension type front wheel drive vehicle. The constant-velocity joint of the left-hand side is made of a tripod type constant velocity joint, and the wheel side (outboard side) is made of a ball type constant velocity joint around the shaft.

Meanwhile, in order to reduce the weight of the vehicle and improve the performance of the NVH, efforts have recently been made to reduce the weight of the shaft by using a hollow shaft (pipe).

At this time, both side portions of the shaft are frictionally welded to the hollow shaft, and splines are formed at both ends of the shaft, thereby coupling the spider assembly and the inner race.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a conventional constant velocity joint assembly. FIG.

As shown in Fig. 1, the construction of a constant-velocity joint assembly according to the present invention is characterized in that the engine side (inboard side) is composed of a tripod type joint around the shaft 1, Board side) is made of a ball type joint.

The tripod-type joint includes a housing 2 which rotates by receiving the rotational power of an engine (not shown) and functions as an outer ring, and a ring 2 inserted into the inner groove of the housing 2, And a spider assembly 2a that functions as an inner ring.

The spider assembly 2a is coupled to the shaft 1 and transmits the rotational power of the housing 2 to the shaft 1. [

The spider assembly 2a includes a spider 3 having a tridion type trunnion formed thereon, a needle roller 5 provided on the outer circumferential surface of the trunnion of the spider 3, An outer roller 4 installed on an outer circumferential surface of the needle roller 5 to reduce the friction between the housing 2 and the shaft 1 and an outer roller 4 disposed on the upper end of the needle roller 5 to prevent the needle roller 5 from being separated A strike outer 7 and a retainer ring 6 installed to prevent the strike outer 7 from being disengaged.

A boot 9 for connecting one end of the housing 2 to the shaft 1 at one end of the housing 2 and fixed bands 10 and 11 for fixing the boot 9, ).

The ball type joint includes an inner race 15 connected to one end of the shaft 1 and functioning as an inner race, an outer race 13 provided outside the inner race 15 and serving as an outer race, A plurality of balls 16 for transmitting the rotational power of the inner race 15 to the outer race 13 and a cage 14 for supporting the balls 16.

One end of the shaft 1 is provided with a boot 18 for connecting one end of the shaft 1 to the outer race 13 and fixing bands 19 and 20 for fixing the boot 18 ).

The operation of a constant velocity joint assembly according to the above construction is as follows.

First, when a rotational power output from an engine (not shown) is transmitted to the housing 2 via a transmission (not shown), the housing 2 is rotated, and the rotational power of the housing 2 is transmitted to the outer The spider assembly 2a is rotated by being transmitted to the spider 3 through the roller 4 and the needle roller 5.

The rotational power of the spider assembly 2a is transmitted to the shaft 1 and the rotational power of the shaft 1 is transmitted to the outer race 13 via the inner race 15 and the ball 16. [ Thereby rotating a wheel (not shown) connected to the outer race 13.

Meanwhile, the shaft 1 has a hollow portion 1a formed therein to reduce weight, and a spline 1c for coupling with the outer race 13 is formed at one side thereof.

However, the shaft 1 of the conventional constant velocity joint assembly is manufactured by connecting the central portion formed with the hollow portion 1a and one side portion formed with the spline 1c by welding 1b to each other. There arises a problem of breakage. In addition, there is a problem that the one end of the shaft 1 which gives the spline 1c is thinned and the strength is weak and broken.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems described above, and it is an object of the present invention to provide a constant velocity universal joint which is capable of connecting constant velocity joints to the inner space at both ends of a constant velocity joint connection shaft, Speed joints, and a constant-velocity joint connecting shaft that can be protected from the outside of the constant-velocity joints, and a constant-velocity joint assembly for a vehicle having the shaft.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention is a shaft for connecting a constant velocity joint for connecting a first constant velocity joint and a second constant velocity joint to each other and transmitting a rotational force of the first constant velocity joint to the second constant velocity joint, ; A first constant velocity joint fastener integrally formed on an outer periphery of one end of the shaft body and capable of being inserted into the first constant velocity joint inward; And a second constant velocity joint fastener integrally formed on an outer circumference of the other end of the shaft body, the second constant velocity joint fastener being inserted into the second constant velocity joint to be inserted therein. to provide.

In a preferred embodiment, a hollow is formed in the shaft body.

In a preferred embodiment, both ends of the shaft body are clogged by a cap, and the hollow is separated from the inner space of the first constant velocity joint fastener and the second constant velocity joint fastener by the cap.

In a preferred embodiment, the diameters of the first constant velocity joint fastener and the second constant velocity joint fastener are larger than the diameter of the shaft body.

In a preferred embodiment, a first spline is formed on an inner surface of the first constant velocity joint fastener so that the outer ring of the first constant velocity joint can be engaged with and fixed to the inner race, A second spline is formed on the outer circumference of the second spline.

In a preferred embodiment, a first groove is formed on the inner surface of the first constant velocity joint fastener so as to guide the inner ring of the first constant velocity joint to rotate and to rotate, and the inner surface of the second constant velocity joint fastener A second groove for guiding the inner ring of the second constant velocity joint to guide the inner ring of the second constant velocity joint so as to rotate and to rotate while the inner ring of the second constant velocity joint is inserted and the first constant velocity joint fastener functions as an outer ring of the first constant velocity joint, The ball may function as an outer ring of the second constant velocity joint.

Further, the present invention provides a constant velocity joint comprising: a shaft for connecting the constant velocity joint; A first constant velocity joint which is inserted into and engaged with the first constant velocity joint fastening and transmits rotational power of the engine to the constant velocity joint connecting shaft; And a second constant velocity joint which is inserted into and engaged with the second constant velocity joint fastener and transmits the rotational power of the constant velocity joint connecting shaft to the wheels.

In a preferred embodiment, the first constant velocity joint and the second constant velocity joint are a tripod type constant velocity joint or a ball type constant velocity joint, respectively.

In a preferred embodiment, the first constant velocity joint is a tripod type constant velocity joint, and the second constant velocity joint is a ball type constant velocity joint.

In a preferred embodiment, the tri-port type constant velocity joint includes an inboard stem having one side connected to the engine and receiving rotation power from the engine and rotating; A spider assembly coupled to the other side of the inboard stem by an inner ring; And a groove that is coupled to the inside of the first constant velocity joint fastener as an outer ring and that allows the spider assembly to rotate while being rotated on the inner surface thereof and transmits the rotational power of the spider assembly to the constant velocity joint connecting shaft And a housing.

In a preferred embodiment, the ball-type constant velocity joint is an outer ring, which is coupled to the inside of the second constant velocity joint fastener, and a groove is formed on the inner surface so that the inner race can be rotated at the same time, An outer race rotated together with a shaft for use; An inner race coupled to an inner groove of the outer race by an inner race; And an outboard stem coupled to the inner race at one side and connected to the wheel at the other side for transmitting the rotational power of the inner race to the wheel.

In a preferred embodiment, the first boot is connected between the outer circumferential surface of the predetermined portion of the inner stem and the one end of the housing. And a second boot connected between an outer circumferential surface of a predetermined portion of the outboard stems and one end of the outer race.

In a preferred embodiment, a first groove is formed on an inner surface of the first constant-velocity joint fastener so as to guide the inner ring of the tripod-type constant velocity joint to rotate and rotate, Wherein the first constant velocity joint fastener functions as an outer ring of the tripod type constant velocity joint, and the second constant velocity joint is provided with a second groove for guiding the inner ring of the ball type constant velocity joint to guide the inner ring of the ball type constant velocity joint, The joint fastener functions as an outer ring of the ball type constant velocity joint.

In a preferred embodiment, the tri-port type constant velocity joint includes an inboard pedestal having one side connected to the engine and rotated by receiving power from the engine; And a spider assembly coupled to the other side of the inboard stem by an inner ring and inserted into the first groove and transmitting rotational power of the inboard stem to the constant velocity joint connecting shaft, An inner race inserted into the second groove as an inner ring and rotated by a rotational power of the constant velocity joint connecting shaft; And an outboard stem coupled to the inner race at one side and connected to the wheel at the other side and rotated by the rotational power of the inner race.

In a preferred embodiment, a first boot connected between an outer circumferential surface of a predetermined portion of the inboard stem and an end of the first constant velocity joint fastener; And a second boot connected between an outer circumferential surface of a predetermined portion of the outboard stems and an end of the second constant velocity joint fastener.

The present invention has the following excellent effects.

First, according to the constant-velocity joint connecting shaft and the constant-velocity joint assembly for a vehicle having the shaft of the present invention, constant-velocity joints can be inserted into the spaces at both ends of a constant-velocity joint connecting shaft and the shaft can be connected in such a manner as to surround the constant- It is possible to improve the rigidity of the shaft and to protect the constant velocity joints from the outside.

Further, according to the constant-velocity joint connecting shaft of the present invention and the constant-velocity joint assembly for a vehicle having the shaft, both ends of the constant-velocity joint connecting shaft can be directly inserted into the outer ring of the constant velocity joint, There is an effect that can be lowered.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-
2 is a view showing the appearance of a constant velocity joint assembly according to a first embodiment of the present invention,
3 is a sectional view taken along the line A-A 'in Fig. 2,
4 is an exploded view of another constant velocity joint assembly according to the first embodiment of the present invention,
5 is an exploded view of a constant velocity joint assembly according to a second embodiment of the present invention.

Although the terms used in the present invention have been selected as general terms that are widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, the meaning described or used in the detailed description part of the invention The meaning must be grasped.

Hereinafter, the technical structure of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals designate like elements throughout the specification.

[First Embodiment]

Referring to FIG. 2, the constant velocity joint assembly 200 according to the first embodiment of the present invention includes a constant velocity joint connection shaft 100, a shaft 100 inserted into one side of the shaft 100, And a second constant velocity joint 220 inserted into the other side of the shaft 100 to transmit the rotational power of the shaft 100 to the wheel side.

The shaft 100 includes a shaft body 110, a first constant velocity joint fastener 120 integrally extended to one side of the shaft body 110, and a second constant velocity joint fastener 120 integrally extended from the other side of the shaft body 110 And a second constant velocity joint fastener (130).

The first constant-velocity joint 210 is inserted into and engaged with the first constant velocity joint fastener 120 and the second constant velocity joint 220 is inserted into the second constant velocity joint fastener 130, do.

That is, the constant velocity joint assembly 200 according to the first embodiment of the present invention does not have constant velocity joints connected to both ends of the shaft 110 as compared with a conventional constant velocity joint assembly, And the shaft 110 is coupled to the constant velocity joints 210 and 220 while being enclosed.

Accordingly, the rigidity of the shaft 110 can be increased, and the constant velocity joints 210 and 220 can be protected from the outside.

Also, the shaft 100 may be provided separately from the constant velocity joint assembly 200.

Hereinafter, the construction of the constant velocity joint assembly 200 according to the first embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4. FIG.

3 and 4, the constant velocity joint assembly 200 according to the first exemplary embodiment of the present invention includes a constant velocity joint connecting shaft 100, a first constant velocity joint 210 and a second constant velocity joint 220 .

The shaft 100 is a shaft for transmitting the rotational power of the first constant velocity joint 210 to the second constant velocity joint 220. The shaft 100 includes a cylindrical shaft body 110, A first constant velocity joint fastener 120 integrally extended from the outer circumferential surface and providing a space 120b in which the first constant velocity joint 210 is inserted and coupled to the first constant velocity joint 210, And a second constant velocity joint fastener 130 integrally formed on the outer surface of the end portion and providing a space 130b into which the second constant velocity joint 220 is inserted and coupled.

The diameter of the first constant velocity joint fastener 120 and the second constant velocity joint fastener 130 may be larger than the diameter of the shaft body 110.

In addition, a hollow 110a is formed in the shaft body 110, and the hollow 110a serves to reduce the weight of the shaft 110. [

One end of the shaft body 110 is closed by the first cap 130 and the other end of the shaft body 110 is closed by the second cap 130.

That is, the hollow portion 110a of the shaft body 110 is connected to the inner space 120b of the first constant velocity joint fastener 120 and the inner space 130b of the second constant velocity joint fastener 130, They are separate spaces and do not communicate with each other.

This is to prevent the oil from entering the hollow 110a of the shaft body 110 when the space inside the first constant velocity joint fastener 120 and the second constant velocity joint fastener 130 is filled with the grease to be.

In addition, a first spline 120a is formed inside the first constant velocity joint fastener 120 so that the outer ring of the first constant velocity joint 210 can be inserted and fixed, and the second constant velocity joint fastener The second spline 130a can be inserted and fixed to the outer ring of the second constant velocity joint 220. [

The splines 120a and 130a prevent slippage with the constant velocity joints 210 and 220 when the shaft 110 rotates.

Meanwhile, the present invention can separately provide only the shaft 100 among the constant velocity joint assembly 200 according to the first embodiment of the present invention.

The first constant velocity joint 210 is inserted into the first constant velocity joint fastener 120 and is coupled to the shaft 100 to transmit the rotational power of the engine to the shaft 100.

In addition, the first constant velocity joint 210 is provided with a tripod type constant velocity joint.

The first constant-velocity joint 210 may be a ball-type constant velocity joint. However, the engine 100 and the shaft 100 are relatively large in power transmission angle, so that it is preferable to provide a tripod type constant velocity joint having a high power transmission efficiency Do.

The first constant velocity joint 210 includes an inboard stem 211 having one side 211a connected to the engine and rotated by receiving a rotational power from the engine and a second side 211b coupled to the other side 211b of the inboard stem 211. [ A spider assembly 212 that rotates together with the inboard stem 211 and functions as an inner ring, a spider assembly 212 inserted into the first constant velocity joint fastener 120, And a housing 213 in which the spider assembly 212 is rotatable and a groove 213b is formed.

In addition, the inboard stem 211 may be indirectly connected to the engine through a transmission.

A spline 213a is formed on the outer surface of the housing 213 so as to engage with the first spline 120a of the first constant velocity joint fastener 120. A spline 213a is formed on the outer side of the spider assembly 212, And functions as an outer ring.

That is, the spider assembly 212 and the housing 213 are inserted into the first constant velocity joint fastener 120 and can be protected from the outside.

The constant velocity joint assembly 200 according to the first embodiment of the present invention connects the outer circumferential surface of the predetermined portion 211c of the inboard stem 211 to the outer circumferential surface 213c of the one end portion of the housing 213, The spider assembly 212 may further include a first boot 230 for blocking foreign matter from entering the spider assembly 212 and the housing 213.

In addition, the first boot 230 also functions to prevent the grease charged in the first constant velocity joint fastener 120 from flowing out to the outside.

The diameter of the predetermined portion 211c of the inboard stem 211 to which the first boot 230 is coupled is preferably larger than the diameter of one side 211a and the other side 211b of the inboard stem 211 Do.

Both ends of the first boot 230 may be fixed by a band.

Also, the first boot 230 may be made of a resin material so as to be flexible.

The second constant-velocity joint 220 is inserted into the second constant velocity joint fastener 130 and transmits the rotational power of the shaft 100 to the wheel.

The second constant velocity joint 220 may be a ball-type constant velocity joint.

The second constant velocity joint 220 may be provided as a tripod type constant velocity joint. However, since the shaft 100 and the wheel have relatively small power transmission angles, the constant velocity joint is preferably a ball type constant velocity joint.

The second constant velocity joint 220 includes an outer race 221 inserted into the second constant velocity joint fastener 130 and rotating together with the shaft 110 and functioning as an outer race, An inner race 222 which is coupled to the inner side of the inner race 222 and rotatable and rotatable and which functions as an inner ring, one side 223a is coupled with the inner race 222, and the other side 223b is connected with wheels, And an outboard stem 223 that transmits the rotational power of the race 222 to the wheels.

A spline 221a is formed on the outer surface of the outer race 221 so as to engage with the second spline 130a of the second constant velocity joint fastener 130. The inner race 222 is formed on the inner surface, A groove 221b is formed which is capable of rotating while simultaneously moving the ball.

That is, since the inner race 222 and the outer race 221 are inserted into the second constant velocity joint fastener 130 and are wrapped, they can be protected from the outside.

The constant velocity joint assembly 200 according to the first embodiment of the present invention connects the outer circumferential surface of the predetermined portion 223c of the outboard stems 223 and the outer circumferential surface 221c of the one end portion of the outer race 221 to each other And a second boot 240 for blocking foreign matter from entering the inner race 222 and the outer race 221.

The second boot 240 also functions to prevent the grease filling the second constant velocity joint fastener 130 from leaking to the outside.

The diameter of the predetermined portion 223c of the outboard stems 223 to which the second boot 240 is coupled is preferably larger than the diameter of the one side 223a and the other side 223b of the outboard stems 223 Do.

Both ends of the second boot 240 may be fixed by a band.

Also, the second boot 240 may be made of a resin material so as to be flexible.

[Second Embodiment]

5, the constant velocity joint assembly 300 according to the second embodiment of the present invention includes a constant velocity joint connection shaft 310, one side of the shaft 310 A first constant velocity joint 320 inserted into the shaft 310 and coupled to the shaft 310 to transmit rotation power of the engine to the shaft 310, And a second constant velocity joint (330) for transmitting the constant velocity joint (330).

The shaft 310 includes a shaft body 311, a first constant velocity joint fastener 312 extending integrally from the outer circumferential surface of one side of the shaft body 311 and a second constant velocity joint fastener 312 integrally formed on the outer circumferential surface of the shaft body 311 And a second constant velocity joint fastening member 313 extended from the shaft body 311. The shaft body 311 is hollow.

That is, the shaft 310 of the constant velocity joint assembly 300 according to the second embodiment of the present invention has a shape substantially equal to that of the shaft 100 of the constant velocity joint assembly 200 according to the first embodiment of the present invention .

However, in the constant velocity joint assembly 300 according to the second embodiment of the present invention, the spline is not formed inside the first constant velocity joint fastener 312 and the spindle assembly 212 of the first constant velocity joint 320 And the inner race 222 of the second constant-velocity joint 330 is directly connected to the inner race 222 of the second constant-velocity joint 330. In this case, A groove 313a which can be engaged is formed.

That is, the first constant velocity joint fastener 312 functions as an outer ring of the spider assembly 212, and the second constant velocity joint fastener 313 functions as an outer race of the inner race 222.

In other words, the first constant velocity joint fastening part 312 serves as the housing 213 of the first constant velocity joint 210 according to the first embodiment of the present invention, and the second constant velocity joint fastening part 313 And serves as the outer race 221 of the second constant velocity joint 220 according to the first embodiment of the present invention.

In addition, the shaft 310 according to the second embodiment of the present invention may be provided separately from the constant velocity joint assembly 300.

The first constant velocity joint 320 of the constant velocity joint assembly 300 according to the second exemplary embodiment of the present invention is similar to the first constant velocity joint 210 of the constant velocity joint assembly 200 according to the first exemplary embodiment of the present invention By comparison, the configuration of the housing 213 is removed and comprises only the inboard stem 211 and the spider assembly 212.

The second constant velocity joint 330 of the constant velocity joint assembly 300 according to the second exemplary embodiment of the present invention is similar to the second constant velocity joint 220 of the constant velocity joint assembly 200 according to the first exemplary embodiment of the present invention The structure of the outer race 221 is removed and only the inner race 222 and the outboard stems 223 are formed.

Therefore, according to the constant velocity joint assembly 300 according to the second embodiment of the present invention, the number of parts is reduced as compared with the constant velocity joint assembly 200 according to the first embodiment of the present invention, It has the advantage of lowering the production cost.

The constant velocity joint assembly 300 according to the second embodiment of the present invention includes a first boot 230 connected to an end of the first constant velocity joint fastener 312 and a periphery of a predetermined portion of the inboard stem 211 And a second boot 240 connected to an end of the second constant velocity joint fastener 313 and a predetermined portion of the outboard stem 223, Is substantially the same as the first boot 230 and the second boot 240 of the constant velocity joint assembly 200 according to the embodiment.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the present invention. Various changes and modifications will be possible.

100, 310: Shaft for constant velocity joint connection 110, 311:
120,312: first constant velocity joint fastener 130,313: second constant velocity joint fastener
210,320: First constant velocity joint 211: Inbodies stems
212: spider assembly 213: housing
220,330: Second constant-velocity joint fastener 221: Outer race
222: inner race 223: outboard stems
230: first boot 240: second boot

Claims (15)

A constant velocity joint connecting shaft for connecting a first constant velocity joint and a second constant velocity joint to each other and transmitting rotational force of the first constant velocity joint to the second constant velocity joint,
A cylindrical shaft body;
A first constant velocity joint fastener integrally formed on an outer periphery of one end of the shaft body and capable of being inserted into the first constant velocity joint inward; And
And a second constant velocity joint fastener extending integrally from an outer circumference of the other end of the shaft body and capable of being inserted and inserted into the second constant velocity joint.
The method according to claim 1,
And a hollow is formed inside the shaft body.
3. The method of claim 2,
Wherein both ends of the shaft body are clogged by a cap and the hollow is separated from an inner space of the first constant velocity joint fastener and the second constant velocity joint fastener by the cap.
The method of claim 3,
And the diameter of the first constant velocity joint fastener and the second constant velocity joint fastener is larger than the diameter of the shaft body.
The method of claim 3,
Wherein a first spline is formed on the inner surface of the first constant velocity joint fastener so that the outer ring of the first constant velocity joint can be coupled and fixed,
And a second spline is formed on the inner surface of the second constant velocity joint fastener so that the outer ring of the second constant velocity joint can be coupled and fixed.
The method of claim 3,
Wherein a first groove is formed on the inner surface of the first constant velocity joint fastener so as to guide the inner ring of the first constant velocity joint to rotate and to rotate,
Wherein a second groove is formed on an inner surface of the second constant-velocity joint fastener so as to guide the inner ring of the second constant-velocity joint to rotate and rotate,
Wherein the first constant velocity joint fastener functions as an outer ring of the first constant velocity joint and the second constant velocity joint fastener functions as an outer ring of the second constant velocity joint.
7. A constant-velocity joint connecting shaft according to any one of claims 1 to 5,
A first constant velocity joint which is inserted into and engaged with the first constant velocity joint fastening and transmits rotational power of the engine to the constant velocity joint connecting shaft; And
And a second constant velocity joint which is inserted into the second constant velocity joint fastener and is coupled to the first constant velocity joint and transmits the rotational power of the constant velocity joint connecting shaft to the wheel.
8. The method of claim 7,
Wherein the first constant velocity joint and the second constant velocity joint are a tripod type constant velocity joint or a ball type constant velocity joint, respectively.
9. The method of claim 8,
Wherein the first constant velocity joint is a tripod type constant velocity joint and the second constant velocity joint is a ball type constant velocity joint.
10. The method of claim 9,
In the tri-port type constant velocity joint,
An inboard stem connected to one side of the engine and rotated by receiving rotational power from the engine;
A spider assembly coupled to the other side of the inboard stem by an inner ring; And
And a groove for coupling the spindle assembly and the spindle assembly to the spindle assembly, the spindle assembly being rotatably coupled to the spindle assembly, Wherein the first and second portions are spaced apart from each other.
11. The method of claim 10,
In the ball type constant velocity joint,
An outer race connected to the inside of the second constant velocity joint fastener with an outer ring and formed with a groove on the inner surface so that the lower inner race can be rotated at the same time and is rotated together with the constant velocity joint connecting shaft;
An inner race coupled to an inner groove of the outer race by an inner race; And
And an outboard stem coupled to the inner race at one side and connected to the wheel at the other side to transmit the rotational power of the inner race to the wheel.
12. The method of claim 11,
A first boot connected between an outer peripheral surface of a predetermined portion of the inboard stem and an end of the housing; And
And a second boot connected between an outer circumferential surface of a predetermined portion of the outboard stems and an end portion of the outer race.
10. The method of claim 9,
Wherein a first groove is formed on the inner surface of the first constant-velocity joint fastener so as to guide the inner ring of the tripod-type constant velocity joint to rotate and rotate,
Wherein a second groove is formed on an inner surface of the second constant-velocity joint fastener so as to guide the inner ring of the ball-shaped constant velocity joint to rotate and rotate,
Wherein the first constant velocity joint fastener functions as an outer ring of the tripod type constant velocity joint and the second constant velocity joint fastener functions as an outer ring of the ball type constant velocity joint.
14. The method of claim 13,
In the tri-port type constant velocity joint,
An inboard stem connected to one side of the engine and rotated by receiving power from the engine; And
And a spider assembly coupled to the other side of the inboard stem by an inner ring and inserted into the first groove and transmitting rotational power of the inboard stem to the constant velocity joint connecting shaft,
In the ball type constant velocity joint,
An inner race inserted into the second groove by an inner ring and rotated by a rotational power of the constant velocity joint connecting shaft; And
And an outboard stem coupled to the inner race at one side and connected to the wheel at the other side and rotated by the rotational power of the inner race.
15. The method of claim 14,
A first boot connected between an outer circumferential surface of a predetermined portion of the inboard stem and an end of the first constant velocity joint fastener; And
And a second boot connected between an outer circumferential surface of a predetermined portion of the outboard stems and an end portion of the second constant velocity joint fastener.



KR1020150115993A 2014-10-31 2015-08-18 Shaft for connecting constant velocity joints and constant velocity joint assembly having the shaft for vehicle KR20160051575A (en)

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