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KR20140025178A - Outlace of ball type constant velocity joint for vehicle - Google Patents

Outlace of ball type constant velocity joint for vehicle Download PDF

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Publication number
KR20140025178A
KR20140025178A KR1020120091509A KR20120091509A KR20140025178A KR 20140025178 A KR20140025178 A KR 20140025178A KR 1020120091509 A KR1020120091509 A KR 1020120091509A KR 20120091509 A KR20120091509 A KR 20120091509A KR 20140025178 A KR20140025178 A KR 20140025178A
Authority
KR
South Korea
Prior art keywords
outer race
constant velocity
velocity joint
ball
type constant
Prior art date
Application number
KR1020120091509A
Other languages
Korean (ko)
Inventor
김성현
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 KR1020120091509A priority Critical patent/KR20140025178A/en
Publication of KR20140025178A publication Critical patent/KR20140025178A/en

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Classifications

    • 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
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/06—Lubrication details not provided for in group F16D13/74

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The present invention relates to an outer race of a ball-type constant velocity joint for a vehicle that can prevent an internal heat temperature from rising by forming a lubricating oil groove in the track groove of the outer race so that the inner surface of the outer race is well lubricated. As,
A plurality of track grooves are formed therein for moving the ball fixed by the cage and the inner race, and a guide surface in close contact with the cage is formed between the track grooves, and lubricated on the guide surfaces. A groove is formed.

Description

Outer race of ball type constant velocity joint

The present invention relates to an outer race of a ball type constant velocity joint for a vehicle. More specifically, the internal heat temperature of the outer race is increased by forming a lubricating groove in the track race of the outer race so that the inner surface of the outer race is well lubricated. It is related with the outer race of the ball type constant velocity joint for vehicles which can be prevented.

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) Type joint, and the tire side (outboard side) around the shaft is made of a ball type joint.

Fig. 1 is a sectional view of a general constant velocity joint, and Fig. 2 is an external configuration of a constant velocity joint.

As shown in Figs. 1 and 2, the configuration of a constant-velocity joint according to the present invention includes a shaft 1, an engine side (inboard side), a tripod type joint, Outboard side) is made of a ball type joint.

The structure of the tripod type joint provided on the engine side (inboard side) centering on the shaft 1 includes a housing 2 which transmits rotational power of the engine (not shown) and has grooves formed therein; The shaft 1 is rotated by receiving the rotational power of the housing 2, and is connected to one end of the shaft 1 to connect the housing 2 and the shaft 1 of the housing 2. A spider 3 installed inside and having a tripod trunnion formed therein, a needle roller 6 installed on an outer circumferential surface of the trunnion of the spider 3, and an outer circumferential surface of the needle roller 6; A spherical roller 5, a cylindrical roller 4 installed on an outer circumferential surface of the spherical roller 5, and reducing friction between the housing 2 and the shaft 1, the needle roller 6 and the spherical roller. The strike out 8 provided in the upper end of the 5, and the strike out ( Retaining ring (7) is installed to prevent the separation 8, the boot 10, one end is connected to the housing 2, one end is connected to the shaft (1), and the boot 10 It comprises a clamping band (11, 12) for fixing each.

The structure of the ball type joint provided on the wheel side (outboard side) with respect to the shaft 1 includes a shaft 1 rotated by receiving the rotational power of the tripod type joint, An outer race 13 installed on the outer side of the inner race 15 and an outer race 13 connected to one end of the outer race 13 to transmit the rotational power of the inner race 15 to the outer race 13. [ A cage 14 for supporting the ball 16, a sensor ring 17 provided on the outside of the outer race 13, A boot 18 connected to the outer race 13 and having one end connected to the outer race 13 and clamping bands 19 and 20 for fixing the boot 18.

In addition, the damper 21 is installed in the middle of the shaft 1 by using the bands 22 and 23, and the damper 21 has a structure in which the mass 211 is installed inside the body 212.

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

When the rotational power output from the 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 cylindrical roller 4, And is transmitted to the spider 3 via the spherical roller 5 and the needle roller 6 to rotate the shaft 1 connected to the spider 3.

The rotation power of the shaft 1 is transmitted to the outer race 13 via the inner race 15 and the ball 16 to thereby rotate a wheel (not shown) connected to the outer race 13.

In this case, in the tripod-type joint provided on the engine side (inboard side) around the shaft 1, the cylindrical roller 4 slides in the groove of the housing 2, The angle of rotation of the associated shaft 1 is changed, and accordingly, the angle of rotation is changed according to the displacement of the vehicle. In the ball type joint provided on the wheel side (outboard side) about the shaft 1, The angle of rotation of the outer race 13 is changed, and accordingly, the angle of rotation is changed according to the displacement of the vehicle.

In addition, the boot 10 on the side of the tripod type joint and the boot 18 on the side of the ball type joint enclose the outside of the tripod type joint and the ball type joint, respectively, so that the tripod- To prevent damage by the material.

In addition, when the torque output from the engine transmits torque to the wheel side through the transmission 1 through the transmission, unbalanced rotation occurs at any rotational speed in the shaft 1 rotating at a high speed. Such unbalanced rotation is preferable Causing undesirable vibrations and adversely affecting the operation of the drive system. In order to suppress undesired vibration caused by such an unbalanced rotation, the damper 2 installed in the middle portion of the shaft 1 has a buzzing noise due to the harmful vibration frequency occurring at the shaft 1 during the high speed rotation of the shaft 1. to prevent booming noise.

3 is an exploded view of a conventional vehicle ball type constant velocity joint, FIG. 4 is a partially cutaway perspective view of a conventional vehicle ball type constant velocity joint, and FIG. 5 is a perspective view of an outer race of a conventional vehicle ball type constant velocity joint.

As shown in FIGS. 3 to 5, in the conventional ball type constant velocity joint for a vehicle, the cage 14 and the inner race 15 fix the ball 16, and the ball 16 is outer in accordance with steering. It is made of a structure that is moved in the track groove 131 is formed in the longitudinal direction on the inner peripheral surface of the race (13).

However, the outer race 13 of the conventional ball-type constant velocity joint lubrication of the inner surface by sealing the inner space of the outer race 13 is sealed off the outside in the process of the ball 16 in contact with the track groove 131 This is not made well there is a problem that the internal heat temperature is increased.

An object of the present invention is to solve the conventional problems as described above, by forming a lubricating oil groove in the track groove of the outer race to prevent the internal heat temperature is increased by lubricating the inner surface of the outer race well The present invention provides an outer race of a ball type constant velocity joint for a vehicle.

As a means for achieving the above object, in the configuration of the present invention, a plurality of track grooves for moving the ball fixed by the cage and the inner race are formed therein, and the cage closely adheres between the track grooves. It is preferable that the guide surface is formed, and a lubrication groove is formed on the said guide surface.

The configuration of the present invention is preferably such that the lubrication groove is formed with a first lubrication groove in the center of the guide surface along the axial direction.

In the configuration of the present invention, it is preferable that the above-described lubrication grooves are provided with a second lubrication groove and a third lubrication groove, one at each end of the guide surface along the axial direction.

According to the configuration of the present invention, the lubrication grooves are each formed with a fourth lubrication groove and a fifth lubrication groove at both ends of the guide surface along the axial direction, and between the fourth lubrication groove and the fifth lubrication groove. Preferably, the sixth lubrication groove is formed in the fourth lubrication groove and the fifth lubrication groove.

In the configuration of the present invention, it is preferable that a plurality of the sixth lubrication grooves are formed.

The present invention has an effect that the internal heat temperature can be prevented from rising by forming a lubricating oil groove in the track groove of the outer race so that the inner surface of the outer race is well lubricated.

1 is a cross-sectional view of a general constant velocity joint.
Fig. 2 is an external configuration view of a general constant velocity joint.
3 is an exploded configuration diagram of a conventional vehicle ball type constant velocity joint.
4 is a perspective configuration diagram of a conventional vehicle ball type constant velocity joint.
Figure 5 is a cross-sectional view before the folding of the conventional vehicle ball type constant velocity joint.
6 is a perspective configuration diagram of an outer race of a ball type constant velocity joint for a vehicle according to a first embodiment of the present invention.
8 is a perspective configuration diagram of an outer race of a ball type constant velocity joint for a vehicle according to a second exemplary embodiment of the present invention.
9 is a perspective configuration diagram of an outer race of a ball type constant velocity joint for a vehicle according to a third exemplary embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings in order to describe in detail enough to enable those skilled in the art to easily carry out the present invention. . Other objects, features, and operational advantages, including the purpose, operation, and effect of the present invention will become more apparent from the description of the preferred embodiments.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not to be construed as limiting of the invention, It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities, many of which are within the scope of the present invention.

6 is a perspective configuration diagram of an outer race of a ball type constant velocity joint for a vehicle according to a first embodiment of the present invention.

As shown in FIG. 6, the outer race 33 of the ball type constant velocity joint for a vehicle according to the first embodiment of the present invention includes a plurality of track grooves for moving balls fixed by cages and inner races therein. 331 is formed, the guide surface 332 is in close contact with the cage between the track groove 331, the first lubrication groove 333 is formed on the guide surface 332 described above. The first lubrication groove 333 is formed in the center of the guide surface 332 along the axial direction.

7 is a perspective configuration diagram of an outer race of a ball type constant velocity joint for a vehicle according to a second exemplary embodiment of the present invention.

As shown in FIG. 7, the outer race of the ball type constant velocity joint for a vehicle according to the second embodiment of the present invention includes a plurality of track grooves 331 for moving a ball fixed by a cage and an inner race. Is formed, and the guide surface 332 which is in close contact with the cage is formed between the track grooves 331 described above, and the second and third lubrication grooves 334a and 334b are formed on the guide surface 332 described above. The second and third lubrication grooves 334a and 334b are formed at both ends of the guide surface 332 along the axial direction.

8 is a perspective configuration diagram of an outer race of a ball type constant velocity joint for a vehicle according to a third exemplary embodiment of the present invention.

As illustrated in FIG. 8, the outer race of the ball type constant velocity joint for a vehicle according to the third exemplary embodiment of the present invention includes a plurality of track grooves 331 for moving a ball fixed by a cage and an inner race. Is formed, and the guide surface 332 in close contact with the cage is formed between the track grooves 331, and the fourth, fifth and sixth lubrication grooves 335a are formed on the guide surface 332. , 335b and 335c are formed, and the fourth and fifth lubrication grooves 335a and 335b are formed at both ends of the guide surface 332 along the axial direction, respectively, and the sixth lubrication groove 335c. ) Has a structure formed between the fourth and fifth lubrication grooves 335a and 335b and the fourth and fifth lubrication grooves 335a and 335b vertically.

The sixth lubrication groove 335c has a structure in which a plurality of sixth lubrication grooves 335c are formed.

The operation of the outer race of the ball type constant velocity joint for vehicles according to the first to third embodiments of the present invention by the above-described configuration is as follows.

When the rotational power output from the engine (not shown) rotates the shaft, the rotational power of the shaft is transmitted to the outer race 33 through the inner race and the ball so that the wheel connected to the outer race 33 (not shown). Will rotate.

In the ball type constant velocity joint installed on the wheel side (outboard side) around the shaft, the angle of rotation of the outer race 33 is changed by the ball, so that the angle of the outer race 33 is articulated according to the displacement of the vehicle. .

In this case, the inner space of the outer race 33 is closed and sealed while the ball is in contact with the track groove 331, the lubrication grooves 333, 334a, 334b, 335a, formed in the guide surface 33, The lubricating oil is transferred to the inner space of the outer race 33 through 335b and 335c so that the inner surface of the outer race 33 is well lubricated, thereby preventing the internal heat temperature from rising.

33: outer race 331: track groove
332: guide surface 333, 334a, 334b, 335a, 335b, 335c: lubrication groove

Claims (5)

There are formed a plurality of track grooves for moving the ball fixed by the cage and the inner race,
Guide surfaces in close contact with the cage are formed between the track grooves,
An outer race of a ball type constant velocity joint for a vehicle, characterized in that a lubrication groove is formed on the guide surface. The method of claim 1,
The outer race of the ball-type constant velocity joint for a vehicle, characterized in that the lubrication groove is formed in the center of the guide surface along the axial direction. The method of claim 1,
The outer lubrication groove of the ball-type constant velocity joint for the vehicle, characterized in that the second lubrication groove and the third lubrication groove are formed at each end of the guide surface along the axial direction. The method of claim 1,
The lubrication grooves are each formed with a fourth lubrication groove and a fifth lubrication groove at each end of the guide surface along the axial direction.
The outer race of the ball-type constant velocity joint for a vehicle, characterized in that the sixth lubrication groove is formed between the fourth lubrication groove and the fifth lubrication groove perpendicular to the fourth and fifth lubrication grooves. The method according to claim 6,
The sixth lubrication groove is the outer race of the ball-type constant velocity joint for a vehicle, characterized in that a plurality is formed.
KR1020120091509A 2012-08-21 2012-08-21 Outlace of ball type constant velocity joint for vehicle KR20140025178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120091509A KR20140025178A (en) 2012-08-21 2012-08-21 Outlace of ball type constant velocity joint for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120091509A KR20140025178A (en) 2012-08-21 2012-08-21 Outlace of ball type constant velocity joint for vehicle

Publications (1)

Publication Number Publication Date
KR20140025178A true KR20140025178A (en) 2014-03-04

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KR1020120091509A KR20140025178A (en) 2012-08-21 2012-08-21 Outlace of ball type constant velocity joint for vehicle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102201203B1 (en) 2019-07-15 2021-01-11 현대위아(주) Constant velocity joint for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102201203B1 (en) 2019-07-15 2021-01-11 현대위아(주) Constant velocity joint for vehicle

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E601 Decision to refuse application