KR20170102692A - Constant velocity joint - Google Patents
Constant velocity joint Download PDFInfo
- Publication number
- KR20170102692A KR20170102692A KR1020160025136A KR20160025136A KR20170102692A KR 20170102692 A KR20170102692 A KR 20170102692A KR 1020160025136 A KR1020160025136 A KR 1020160025136A KR 20160025136 A KR20160025136 A KR 20160025136A KR 20170102692 A KR20170102692 A KR 20170102692A
- Authority
- KR
- South Korea
- Prior art keywords
- hole
- hub
- outer race
- spline
- fixing
- Prior art date
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Classifications
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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
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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
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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
- F16D3/48—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part having pins arranged parallel to the axis and entering holes in the other coupling part
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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
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0061—Joining
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
An invention relating to a constant velocity joint is disclosed. The constant velocity joint according to the present invention comprises: an outer race having a first spline portion formed on a first surface thereof and a first through hole formed in a central portion thereof; A hub having a second spline portion formed on a surface facing the first spline portion and coupled to the first spline portion and having a second through hole corresponding to the first through hole in a central portion thereof; And a fastening part inserted into the first through hole and the second through hole and press-fitted into the first through hole and the second through hole.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a constant velocity joint, and more particularly, to a constant velocity joint capable of preventing a joint between a hub and an outer race from being released.
In general, a constant velocity joint is installed on a driving axle connected to a longitudinal decelerating device in a front wheel drive vehicle or a front wheel drive vehicle, and is used to transmit power to a wheel of a vehicle.
In the prior art, the outer race and the hub of the constant velocity joint have a structure in which splines are formed on the surfaces facing each other, and the splines of the outer race and the hub are connected to each other and fixed by bolts.
In this conventional technique, the power transmitted from the constant velocity joint is transmitted to the hub, and the bolts connecting the outer race and the hub are loosened due to the penetration of the grease inside the outer race of the vibration or constant velocity joint into the bolt . Therefore, there is a need for improvement.
BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 2004-0088258 (published on October 16, 2004, entitled Joint Constant Velocity Joint).
An object of the present invention is to provide a constant velocity joint in which the outer race and the hub can be prevented from being loosened by press fitting the outer race and the hub by the fastening portion.
A constant velocity joint according to an embodiment of the present invention includes: an outer race having a first spline portion formed on one surface thereof and a first through hole formed in a center portion thereof; A hub having a second spline portion formed on a surface facing the first spline portion and coupled to the first spline portion and having a second through hole corresponding to the first through hole in a central portion thereof; And a fastening portion inserted into the first through hole and the second through hole and press-fitted into the first through hole and the second through hole.
In one embodiment of the present invention, the fastening portion is formed at one end of the body portion of the fastening portion, is exposed to the outside of the hub, and has a thread portion and a thread portion alternately formed; And a serration part formed at the other end of the body part of the fastening part in a plurality of serrations and press-fitting the first through hole and the second through hole.
In an embodiment of the present invention, a thread corresponding to the thread of the threaded portion is formed at the end of the threaded portion, and the fixed portion for fixing the outer race and the hub is fastened.
In one embodiment of the present invention, the fixing portion is formed with a caulking portion that is inserted into the valley of the threaded portion and restricts the movement of the threaded portion.
In one embodiment of the present invention, the threaded portion is limited in rotation by a pin passing through a fixing hole formed in a side surface of the fixing portion.
According to another aspect of the present invention, there is provided a constant velocity joint comprising: an outer race having a first spline section formed on a first surface thereof and a protrusion protruding from a center thereof; And a hub having a second spline portion coupled to the first spline portion on a surface facing the first spline portion and having a through hole formed in a central portion thereof, the protrusion portion being press-fitted to the through hole.
In another embodiment of the present invention, the protrusions are formed at one end of the protrusion body, are exposed to the outside of the hub, and have threads and bones formed alternately; And a serration part formed at the other end of the body part of the protrusion part in a plurality of serrations and press-fitted to the through hole.
In another embodiment of the present invention, a thread corresponding to the thread of the threaded portion is formed at an end of the threaded portion, and a fastening portion for fastening the outer race to the hub is fastened.
In another embodiment of the present invention, the fixing portion is formed with a caulking portion that is inserted into the valley of the threaded portion and restricts the movement of the threaded portion.
In another embodiment of the present invention, the threaded portion is restricted in rotation by a pin passing through a fixing hole formed in a side surface of the fixing portion.
The constant velocity joint according to the present invention can prevent the union of the outer race and the hub from being released and the power transmitted from the engine is accurately transmitted to the hub so that the wheel connected to the hub can be smoothly driven.
Further, according to the present invention, even when the grease infiltrates into the nut thread portion due to the temperature rise in the outer race, since the outer race and the hub can be firmly engaged with each other, noise or joint defects Can be prevented.
Further, according to the present invention, the bolt or projection formed on the outer race serves as a guide for fastening the hub to the hub, thereby shortening the assembly time.
According to the present invention, since the outer race and the hub are spline-coupled on the opposite faces, and the gap between the outer race and the hub can be minimized by the serrations of the bolts or projections formed on the outer race, Power loss and noise can be reduced.
1 is an assembled perspective view schematically showing a constant velocity joint according to an embodiment of the present invention.
2 is an assembled perspective view schematically illustrating fastening of an outer race and a fastening part according to an embodiment of the present invention.
3 is an assembled perspective view schematically illustrating fastening of a constant velocity joint and a hub according to an embodiment of the present invention.
4 is a partial enlarged view schematically showing the coupling between the fastening portion and the fixing portion according to the embodiment of the present invention.
5 is a cross-sectional view schematically showing a constant velocity joint according to an embodiment of the present invention.
6 is an assembled perspective view schematically showing a constant velocity joint according to another embodiment of the present invention.
FIG. 7 is an assembled perspective view schematically showing fastening of a constant velocity joint and a hub according to another embodiment of the present invention. FIG.
8 is a partially enlarged view schematically showing the coupling between the fastening portion and the fixing portion according to another embodiment of the present invention.
9 is a cross-sectional view schematically showing a constant velocity joint according to another embodiment of the present invention.
Hereinafter, an embodiment of a constant velocity joint according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.
In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.
FIG. 1 is a perspective view of a constant velocity joint according to an embodiment of the present invention, FIG. 2 is an assembled perspective view schematically showing the fastening of an outer race and a fastening part according to an embodiment of the present invention, 4 is a partial enlarged view schematically showing a coupling between a coupling portion and a fixing portion according to an embodiment of the present invention. FIG. 5 is a partial enlarged view of the coupling portion of the constant velocity joint according to the embodiment of the present invention. Is a cross-sectional view schematically showing a constant velocity joint according to an embodiment of the present invention.
1 to 5, a constant velocity joint according to an embodiment of the present invention includes an
In the
The
The
The
The fastening
The
Here, the
The pressing force of the
Also, the
The threaded
The fixing
A plurality of
The
The
A fixing
FIG. 6 is an assembled perspective view schematically showing a constant velocity joint according to another embodiment of the present invention, FIG. 7 is an assembled perspective view schematically showing fastening of a constant velocity joint and a hub according to another embodiment of the present invention, FIG. 9 is a cross-sectional view schematically showing a constant velocity joint according to another embodiment of the present invention. FIG. 9 is a partial enlarged view schematically showing a coupling between a coupling part and a fixing part according to another embodiment of the present invention.
6 to 9, the constant velocity joint according to another embodiment of the present invention includes an
The
The
At the center of the
The
The
The threaded
The threaded
The
The pressing force to the
The
The threaded
A thread corresponding to the thread of the
A plurality of
The
The movement of the
A fixing
The constant velocity joint according to the present invention can prevent the coupling between the
According to the present invention, even when the grease infiltrates into the threaded portion of the fixing
According to the present invention, the
According to the present invention, the outer race (10,10a) and the hub (30,30a) are spline-coupled on the opposite surfaces, and the fastening portion (20,30a) formed on the outer race (10,10a) The gap between the
While the present invention has been particularly shown and described with reference to exemplary 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. I will understand.
Accordingly, the technical scope of the present invention should be defined by the following claims.
10: outer race 11: first spline part
13: first through hole 19: accommodating portion
20: fastening part 21: threaded part
23: Serration part 30: Hub
31: second spline portion 33: through-hole
40: fixing part 41: caulking part
43: Fixing ball 50: Pin
60: inner race 70: band part
10a:
15a: projecting
21a:
30a:
33a: through
41a:
50a:
70a: band portion
Claims (10)
A hub having a second spline portion formed on a surface facing the first spline portion and coupled to the first spline portion and having a second through hole corresponding to the first through hole in a central portion thereof; And
And a fastening portion inserted into the first through hole and the second through hole and press-fitted into the first through hole and the second through hole.
Wherein the fastening portion is formed at one end of the body portion of the fastening portion, is exposed to the outside of the hub, and has a thread portion and a thread portion alternately formed; And
And a serration portion formed at the other end of the body portion of the fastening portion in a plurality of serrations and press-fitted to the first through hole and the second through hole.
At the end of the threaded portion,
Wherein a thread corresponding to the thread of the threaded portion is formed, and the outer race and the fixing portion for fixing the hub are fastened.
And a caulking portion is formed in the fixing portion, the caulking portion being inserted into the valley of the threaded portion and restricting the movement of the threaded portion.
Wherein the threaded portion is restricted in rotation by a pin passing through a fixing hole formed in a side surface of the fixing portion.
And a hub having a second spline portion formed on a surface thereof facing the first spline portion and coupled to the first spline portion and having a through hole formed in a central portion thereof,
And the protruding portion is press-fitted to the through hole.
Wherein the protrusions are formed at one end of a body of the protrusions and exposed to the outside of the hub, the threads being alternately formed with the threads; And
And a serration part formed at the other end of the body part of the protrusion part in a plurality of serrations and press-fit with the through hole.
At the end of the threaded portion,
Wherein a thread corresponding to the thread of the threaded portion is formed, and the outer race and the fixing portion for fixing the hub are fastened.
And a caulking portion is formed in the fixing portion, the caulking portion being inserted into the valley of the threaded portion and restricting the movement of the threaded portion.
Wherein the threaded portion is restricted in rotation by a pin passing through a fixing hole formed in a side surface of the fixing portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160025136A KR20170102692A (en) | 2016-03-02 | 2016-03-02 | Constant velocity joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160025136A KR20170102692A (en) | 2016-03-02 | 2016-03-02 | Constant velocity joint |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20170102692A true KR20170102692A (en) | 2017-09-12 |
Family
ID=59926256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020160025136A KR20170102692A (en) | 2016-03-02 | 2016-03-02 | Constant velocity joint |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20170102692A (en) |
-
2016
- 2016-03-02 KR KR1020160025136A patent/KR20170102692A/en unknown
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