KR20150000767A - Constant velocity joint - Google Patents

Constant velocity joint Download PDF

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Publication number
KR20150000767A
KR20150000767A KR20130073298A KR20130073298A KR20150000767A KR 20150000767 A KR20150000767 A KR 20150000767A KR 20130073298 A KR20130073298 A KR 20130073298A KR 20130073298 A KR20130073298 A KR 20130073298A KR 20150000767 A KR20150000767 A KR 20150000767A
Authority
KR
South Korea
Prior art keywords
joint
sliding
race
shaft
constant velocity
Prior art date
Application number
KR20130073298A
Other languages
Korean (ko)
Inventor
김석
Original Assignee
현대위아 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대위아 주식회사 filed Critical 현대위아 주식회사
Priority to KR20130073298A priority Critical patent/KR20150000767A/en
Publication of KR20150000767A publication Critical patent/KR20150000767A/en

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    • 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
    • F16D3/223—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 the rolling members being guided in grooves in both coupling parts
    • 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
    • F16D3/223—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 the rolling members being guided in grooves in both coupling parts
    • F16D2003/22309—Details of grooves
    • 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
    • F16D3/223—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 the rolling members being guided in grooves in both coupling parts
    • F16D2003/2232—Elements arranged in the hollow space between the end of the inner shaft and the outer joint member
    • 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
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/26—Cover or bell housings; Details or arrangements thereof

Abstract

The present invention relates to a constant velocity joint capable of increasing the angular angle of an engine side joint.
For example, a wheel side joint which is installed on one side of a shaft and has a fixed ball type joint; And a sliding housing which is provided on the other side of the shaft and uses the same ball type joint as the wheel side joint but slides in the axial direction and a sliding housing housing the sliding race and having a track groove formed therein, A constant velocity joint is disclosed.

Description

Constant velocity joint

The present invention relates to a constant velocity joint.

Generally, a joint is for transmitting rotational power (torque) to a rotation shaft 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. A constant velocity joint is used.

Since the constant velocity joint 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, and the engine side (inboard side) It is made of a tripod type joint, and the wheel side (outboard side) around the shaft is made of a fixed ball type joint. On the other hand, the requirements of the joint of the engine side are demanded for the vehicle concept and the like. However, the tripod type joint does not have the angle of repulsion as much as the wheel side joint.

Korean Unexamined Patent Application Publication No. 10-2013-0063425 (June 23, 2014)

The present invention provides a constant velocity joint capable of increasing the angular angle of the engine side joint.

The constant velocity joint according to the present invention comprises a wheel side joint which is installed on one side of a shaft and is made up of a fixed ball type joint; And a sliding housing which is provided on the other side of the shaft and uses the same ball type joint as the wheel side joint but slides in the axial direction and a sliding housing housing the sliding race and having a track groove formed therein, .

In addition, the sliding race slides in the axial direction within the sliding housing, and the outer surface of the sliding race may be formed to correspond to the track groove.

In addition, the track grooves may be formed in a spherical serration shape.

Further, the track grooves may be formed in a rail shape.

Further, the track grooves may be formed in a trapezoidal shape.

Also, the track grooves may be formed in an inverted trapezoidal shape.

A constant velocity joint according to an embodiment of the present invention includes a sliding race capable of sliding on an engine side joint, and a sliding housing having a track groove formed therein for accommodating the sliding race, sliding the engine side joint in an axial direction, At the same time, the angle of the cantilever can be increased like a wheel side joint.

1 is a cross-sectional view showing a constant velocity joint according to an embodiment of the present invention.
2 is an enlarged cross-sectional view of the engine side joint shown in Fig.
3 is a perspective view showing the sliding housing of the engine side joint.
4 is a cross-sectional view of the track groove shown in Fig. 3I-I '.
5 to 7 are sectional views showing another embodiment of the track groove.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

1 is a cross-sectional view showing a constant velocity joint according to an embodiment of the present invention. 2 is an enlarged cross-sectional view of the engine side joint shown in Fig. 3 is a perspective view showing the sliding housing of the engine side joint. 4 is a cross-sectional view of the track groove shown in Fig. 3I-I '. 5 to 7 are sectional views showing another embodiment of the track groove.

1 to 4, a constant velocity joint 100 according to an embodiment of the present invention includes a wheel side (outboard side) joint 110 formed at one side of a shaft 10 and an engine side (Inboard side) joint 120.

The wheel side joint 110 is made of a fixed ball type joint. The wheel side joint 110 includes an inner race 111 installed at one end of the shaft 10, an outer race 112 installed outside the inner race 111, A plurality of balls 113 for transmitting rotational power to the outer race 112, a cage 114 for supporting the balls 113, and a sensor ring (not shown) provided on the outer side of the outer race 112 A boot 116 having one end connected to the shaft 10 and the other end connected to the outer race 112 and a clamping band 117 for fixing the boot 116. The wheel side joint 110 can be bent to about 50 degrees.

Here, the shaft 10 is rotated by receiving the rotational power of the engine-side joint 120. In addition, a damper 11 is installed in the middle of the shaft 10 using a band, and the damper 11 has a structure in which a mass is installed inside the body.

The engine side joint 120 is formed of a slide type ball type joint using the same joint as the wheel side joint 110 but not a fixed type. In other words, the engine-side joint 120 uses the same joint as the wheel-side joint 110, but further uses a separate sliding housing 121 and a sliding race 122 so as to be able to slide in the axial direction It is different. As a result, the engine-side joint 120 is slidable, and the steering angle is the same as that of the wheel-side joint 110.

The engine side joint 120 includes a sliding housing 121 having a track groove 121a formed therein and receiving rotation power of an engine (not shown) An inner race 123 provided inside the sliding race 122 and a plurality of balls 124; a cage 125 for supporting the ball 124; A boot 126 having one end connected to the sliding race 122 and the other end connected to the sliding race 122 and a clamping band 127 for fixing the boot 126. The ball 124 is constrained to the cage 125 and the ball 124 is restrained between the sliding race 122 and the inner race 123 to transmit rotational power.

3 and 4, the track groove 121a formed in the sliding housing 121 is formed in a spherical serration shape. The sliding race 122 can be slid in the axial direction along the track groove 121a formed in the sliding housing 121. [ The outer surface of the sliding race 122 is formed to correspond to the track groove 121a. Therefore, the sliding race 122 is coupled to the track groove 121a, and can be rotated as the sliding housing 121 rotates. That is, the track groove 121a serves to transmit the rotational power of the engine (not shown), and to allow the sliding race 122 to slide inside the sliding housing 121. The sliding race 122 is formed with a groove 122a on the surface facing the sliding housing 121. The groove 122a reduces the weight of the sliding race 122 and allows the sliding race 122 to move easily within the sliding housing 121. [

Also, the track groove of the sliding housing 121 may be modified into various shapes. For example, as shown in FIG. 5, the track groove 221a may be formed in a rail shape. That is, the cross-sectional view of the track groove 221a may be formed so as to become narrower from the upper portion to the lower portion similarly to the cross-sectional view of the rail. Accordingly, the outer surface of the sliding race 122 is also formed in a shape corresponding to the track groove 221a.

Also, as shown in FIG. 6, the track grooves 321a may be formed in a trapezoidal shape. Accordingly, the outer surface of the sliding race 122 is formed to correspond to the track groove 321a.

In addition, as shown in FIG. 7, the track grooves 421a may be formed in an inverted trapezoidal shape. Accordingly, the outer surface of the sliding race 122 is formed to correspond to the track groove 421a.

The operation of the constant velocity joint 100 according to one embodiment of the present invention is as follows.

When the rotational power output from the engine (not shown) is transmitted to the sliding housing 121 of the engine side joint 120 via the transmission (not shown), the sliding housing 121 is rotated, The power is transmitted to the inner race 123 through the sliding race 122 to rotate the shaft 10 connected to the inner race 123. The rotational power of the shaft 10 is transmitted to the outer race 112 via the inner race 111 and the ball 113 of the wheel side joint 110 to thereby connect wheels (not shown) connected to the outer race 112 .

In this case, in the engine side joint 120, the sliding race 122 slides in the sliding housing 121 and is folded in accordance with the displacement of the vehicle. In the wheel side joint 110, The angle of rotation of the race 112 is changed, and the angle of rotation is changed according to the displacement of the vehicle.

As described above, the constant velocity joint 100 according to the embodiment of the present invention includes the sliding race 122 that is slidable on the engine side joint 120, the sliding housing 121 having the track race 121a therein, It is possible to slide the engine side joint 120 in the axial direction to transmit the rotational power, and at the same time to enable the steering angle like the wheel side joint 110.

The present invention is not limited to the above-described embodiments, but may be modified in various ways within the spirit and scope of the present invention as set forth in the following claims. 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.

10: shaft 110: wheel side joint
120: Engine side joint 121: Sliding housing
121a, 221a, 331a, 431a: track groove 122: sliding race
123: Inner Lace 124: Ball
125: Cage

Claims (6)

A wheel side joint which is installed on one side of the shaft and is made up of a fixed ball type joint; And
And an engine side joint including a sliding race installed on the other side of the shaft and using the same ball type joint as the wheel side joint but sliding in an axial direction and a sliding housing having a sliding groove formed therein and receiving the sliding race And a constant velocity joint. The method according to claim 1,
Wherein the sliding race slides axially inside the sliding housing, and the outer surface of the sliding race is formed to correspond to the track groove. The method according to claim 1,
Wherein the track groove is formed in a spherical serration shape. The method according to claim 1,
Wherein the track groove is formed in a rail shape. The method according to claim 1,
Wherein the track grooves are formed in a trapezoidal shape. The method according to claim 1,
Wherein the track grooves are formed in an inverted trapezoidal shape.
KR20130073298A 2013-06-25 2013-06-25 Constant velocity joint KR20150000767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20130073298A KR20150000767A (en) 2013-06-25 2013-06-25 Constant velocity joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20130073298A KR20150000767A (en) 2013-06-25 2013-06-25 Constant velocity joint

Publications (1)

Publication Number Publication Date
KR20150000767A true KR20150000767A (en) 2015-01-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR20130073298A KR20150000767A (en) 2013-06-25 2013-06-25 Constant velocity joint

Country Status (1)

Country Link
KR (1) KR20150000767A (en)

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