KR200381113Y1 - An apparatus for detaching housing of constant velocity joint for automobile - Google Patents

Abstract

The present invention relates to a housing separating device of a constant velocity joint for automobiles, and is installed on a drive shaft connected to a longitudinal deceleration device of a front wheel drive vehicle, that is, a trans axle, and transmits power to the opposite manual axle. Burfield joints installed on the transaxle connected to the longitudinal deceleration device in a constant velocity joint assembly in which the contact points of two axes are located on the bisector of the intersection angle Φ of the shaft so that power transmission can be made at the same speed without changing the rotational speed. By making it easier to separate the housing constituting the) with a smaller force it is possible to significantly improve the workability.

The housing separating apparatus of the constant velocity joint for automobiles according to the present invention has a diameter smaller than the inner diameter of the housing constituting the constant velocity joint assembly, and a thread part is formed over a predetermined length range from the upper side of the inner peripheral surface to the lower side, and the outer peripheral surface at a predetermined angle. A fitting member having a plurality of through holes communicating with the inside at a split position; A wedge-shaped tapered surface narrows toward the bottom of the lower end portion is formed, and an outer circumferential surface corresponding to the upper side of the tapered surface is formed with a screw portion engaged with the threaded portion on the fitting member, and a constant depth is provided at the center of the upper portion. An actuating member having a predetermined length having a screw groove formed therein; A plurality of locking pins protruding outwardly by the entry action of the operation member in a state of being fitted through each through hole formed on the fitting member so that the fitting member inserted into the housing is not separated; An end cap fitted into the inner surface from the bottom of the fitting member and having a spring receiving groove formed at a center of the upper surface thereof; A spring which always springs upward in a state of being fitted into a spring receiving groove formed on an upper surface of the end cap; A locking pin support piece for supporting the inner end of each locking pin fitted through the through hole of the fitting member in the elastically installed state by the spring so that the locking pin does not escape inwardly; An actuating rod of a predetermined length fitted through a center hole of the wheel hub in a state of being fitted into the screw groove on the actuating member and having a screw portion formed on an outer circumferential surface thereof; A spring support having a predetermined shape in close contact with an outer surface of the wheel hub in a state of being fitted into the operation rod; A tightening spring in close contact with an outer side of the spring bearing in a state of being fitted into the operation rod; A washer in close contact with an outer end of the tightening spring in a state of being fitted into the operation rod; A fastening nut screwed to the actuating rod and tightening or releasing the tightening spring with respect to the spring receiver by tightening and releasing action in a state of being in close contact with the outer surface of the washer; A fixed plate screwed to an outer end of the actuating rod; And a slide hammer for applying a separation force to the housing into which the fitting member is fitted by striking the fixing plate by an operation of sliding the inner plate to the outside in a state slidably fitted on the operation rod corresponding to the tightening nut and the fixing plate. .

Description

Housing Separation Device for Automotive Constant Velocity Joint {AN APPARATUS FOR DETACHING HOUSING OF CONSTANT VELOCITY JOINT FOR AUTOMOBILE}

The present invention relates to a housing separating device of a constant velocity joint for automobiles, and more particularly, to a drive axle connected to a longitudinal reduction device of a front wheel drive vehicle, that is, a trans axle, Burfield installed in the transaxle connected to the longitudinal deceleration device in the constant velocity joint assembly in which the contact of two axes is placed on the bisector of the cross angle Φ of the shaft so that the power transmission is made at the same speed without changing the rotational speed. The present invention relates to a housing separation device for a constant velocity joint for automobiles, which can significantly improve repairability by allowing the housing constituting the joint (Birfield Joint) to be easily separated with a smaller force.

In general, power generated from an engine in a front wheel drive vehicle is transmitted to a transaxle installed on one of the front wheels via a longitudinal reduction gear, and the rotational force of the transaxle is rotated on a manual axle to allow the opposite front wheel to roll. It must be configured to transmit at constant velocity without change.

As such, a device for allowing power transmission from the transaxle to the manual axle to be made at the same speed without variation in the rotational speed is a constant velocity joint assembly.

1 is a block diagram illustrating a constant velocity joint assembly applied to a vehicle.

Referring to this, the constant velocity joint assembly 10 includes a shaft 12 having a predetermined length, a burfield joint 14 installed between one end of the shaft 12 and a transaxle, and the shaft ( It consists of three parts: Doble Offset Joint: 16, which is installed between the other end of 12) and the Wheel Hub.

In the constant velocity joint assembly 10, the burfield offset joint 14 connected to the transaxle and the doble offset joint 16 connected to the wheel hub are respectively housed 14a and 16a and inside the housing 14a. Ball 14b, 16b and cage 14c and 16c fitted to allow free joint movement, one end is screwed into one end of the shaft 12, and the other end is It consists of interconnecting shafts 14d and 16d which are fitted into and coupled to the cages 14c and 16c. Greases such as greases are filled in the housings 14a and 16a. Boots 14e and 16e are installed to prevent foreign substances such as dust and muddy water from entering.

On the other hand, in the case of repairing or replacing the constant velocity joint assembly 10 made in this way, first peel off the boot 14e, 16e wrapped on the outside of the housing 14a, 16a and then the interconnecting shaft ( The housing 16a of the doble offset joint 16 connected to the wheel hub side is divided while the balls 14b, 16b, 16b, and cages 14c and 16c are separated.

Then, the housing 14a of the Burfield joint 14, which is firmly pressurized into the transaxle, has to be separated from the coupled state. Conventionally, suitable means for separating the Burfield joint housing 14a are provided. Since it was not provided, a small hammer or the like was used to separate the outer edge of the housing 14a in the opposite direction.

However, when the housing 14a constituting the Burfield joint 14 is separated from the transaxle in this manner, the outer edge of the housing is tapered so that it can be accurately priced using a hammer. There is a problem that does not fit.

In addition, since the space between the portion where the transaxle and the housing 14a are coupled is very narrow, the hammer cannot be easily swung, and thus the separation work of the housing 14a is very difficult and the workability is very poor.

The present invention is to solve the above problems, the purpose of which is installed in the drive shaft (Trans Shaft), that is, the transaxle (Drive Axle) connected to the longitudinal reduction device of the all-wheel drive vehicle, power transmission to the opposite manual axle Burfield joints installed on the transaxle connected to the longitudinal deceleration device in the constant velocity joint assembly, in which the contact of the two axes is positioned on the bisector of the cross angle Φ of the shaft so that the power transmission is made at the same speed without changing the rotational speed. It is to provide a new housing isolating device for a constant velocity joint for automobiles that can significantly improve the repair work by making it possible to easily separate the housing constituting the joint with a smaller force.

In order to achieve the above object, the housing separating apparatus of the constant velocity joint for automobiles according to the first embodiment of the present invention has a diameter smaller than the inner diameter of the housing constituting the constant velocity joint assembly, a predetermined length from the top of the inner peripheral surface downward A fitting member having a screw portion formed over a range, the fitting member having a plurality of through holes communicating with the inside at a position for dividing the outer circumferential surface at a predetermined angle; A wedge-shaped tapered surface narrows toward the bottom of the lower end portion is formed, and an outer circumferential surface corresponding to the upper side of the tapered surface is formed with a screw portion engaged with the threaded portion on the fitting member, and a constant depth is provided at the center of the upper portion. An actuating member having a predetermined length having a screw groove formed therein; A plurality of locking pins protruding outwardly by the entry action of the operation member in a state of being fitted through each through hole formed on the fitting member so that the fitting member inserted into the housing is not separated; End caps are fitted inwardly from the bottom of the fitting member and have a spring receiving groove formed at a central portion of the upper surface thereof; A spring which always springs upward in a state of being fitted into a spring receiving groove formed on an upper surface of the end cap; A locking pin support piece for supporting the inner end of each locking pin fitted through the through hole of the fitting member in the elastically installed state by the spring so that the locking pin does not escape inwardly; An actuating rod of a predetermined length fitted through a center hole of the wheel hub in a state of being fitted into the screw groove on the actuating member and having a screw portion formed on an outer circumferential surface thereof; A spring support having a predetermined shape in close contact with an outer surface of the wheel hub in a state of being fitted into the operation rod; A tightening spring in close contact with an outer side of the spring bearing in a state of being fitted into the operation rod; A washer in close contact with an outer end of the tightening spring in a state of being fitted into the operation rod; A fastening nut screwed to the actuating rod and tightening or releasing the tightening spring with respect to the spring receiver by tightening and releasing action in a state of being in close contact with the outer surface of the washer; A fixed plate screwed to an outer end of the actuating rod; A slide hammer for applying a separation force to the housing into which the fitting member is inserted by striking the fixing plate by an operation of sliding the inner plate to the outside in a state in which the fastening nut and the fixing plate are slidably fitted on the operation rod. ).

Each through hole formed on the fitting member in the present invention has a feature formed at intervals of 120 °.

In the present invention the operating rod has a feature that is coupled via the eye bolt is fitted into the screw groove formed on the upper surface of the operating member.

In the present invention, the inner end of the engaging pin fitted in each through hole on the fitting member has a feature that is inclined to be in surface contact with the tapered surface formed on the lower end of the operating member.

In order to achieve the above object, the housing separating apparatus of the constant velocity joint for automobiles according to the second embodiment of the present invention has a diameter smaller than the inner diameter of the housing constituting the constant velocity joint assembly, a predetermined length from the top of the inner peripheral surface downward A fitting member having a screw portion formed over a range, the fitting member having a plurality of through holes communicating with the inside at a position for dividing the outer circumferential surface at a predetermined angle; A wedge-shaped tapered surface narrows toward the bottom of the lower end portion is formed, and an outer circumferential surface corresponding to the upper side of the tapered surface is formed with a screw portion engaged with the threaded portion on the fitting member, and a constant depth is provided at the center of the upper portion. An actuating member having a predetermined length having a screw groove formed therein; A plurality of locking pins protruding outwardly by the entry action of the operation member in a state of being fitted through each through hole formed on the fitting member to tightly adhere to the inner circumferential surface of the housing while preventing the fitting member from being separated; An end cap inserted into and fixed to a predetermined height from the bottom of the fitting member to an inner side thereof; An actuating rod of a predetermined length fitted into a screw groove on the actuating member in a state of being fitted through the center hole of the wheel hub on the manual axle side, and having a screw portion formed on an outer circumferential surface thereof; A spring support having a predetermined shape in close contact with an outer surface of the wheel hub in a state of being fitted into the operation rod; A cylindrical case disposed to be inserted into the operation rod from the outside of the spring bearing and having a space portion having a predetermined depth therein; A tightening plate to which the front end portion is coupled to protrude outside the outer end of the case by a predetermined length while being fitted into the space portion from the inner end of the case; A tightening spring inserted into the space part from the inner end of the case and in contact with the tightening plate; A stopper fitted by screwing into an inner end opening of the case; And a tightening nut screwed to the actuating rod and tightening or releasing the tightening spring by tightening and releasing action in a state in close contact with the outer surface of the tightening plate.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

Figure 2 is an exploded perspective view showing a housing separating apparatus of the constant velocity joint for automobiles according to the first embodiment of the present invention, Figure 3 is an enlarged separated perspective view of the main portion in the first embodiment of the present invention.

In addition, Figure 4 is an enlarged cross-sectional view of the coupling state of Figure 3, Figure 5 is a partial cross-sectional view showing the installation state of the housing separating apparatus of the constant velocity joint for automobiles according to the first embodiment of the present invention.

6 is a cross-sectional view illustrating a state in which the slide hammer is operated in FIG. 5, and FIG. 7 is a state diagram of a housing separating apparatus for a constant velocity joint for automobiles according to a first embodiment of the present invention.

Referring to this, the housing separating apparatus 30 of the constant velocity joint for automobiles according to the first embodiment of the present invention is configured to easily separate the housing of the burfield joint coupled with the transaxle during the constant velocity joint assembly with a smaller force. do.

To this end, the housing separating device 30 of the constant velocity joint for automobile according to the present invention is largely fitted with a fitting member 32 and an operating member 33 fitted with the fitting member 32. And a locking pin 34 to prevent the fitting member 32 fitted to the housing 31 from being separated, and a locking pin support piece 35 to prevent the locking pin 34 from being separated.

In addition, in the first embodiment of the present invention, the housing 31 is in the direction of the wheel hub 37 with the operation rod 36 having a predetermined length connected to the operation member 33 and the fitting member 32 fitted thereto. The spring force 38, the tightening spring 39 and the tightening nut 40, and the separation force are applied to the housing 31 while the housing 31 is fully pulled toward the wheel hub 37. It includes a slide hammer 41 to be.

In the first embodiment of the present invention as described above, the fitting member 32 is formed to have a diameter smaller than the inner diameter of the housing 31 so that the fitting member 32 can be easily fitted into the housing 31 constituting the constant velocity joint assembly.

The upper portion of the inner peripheral surface of the fitting member 32 is formed with a screw portion 32a over a predetermined length range, and a plurality of through holes 32b communicated with the inside at a position divided by a predetermined angle on the outer peripheral surface thereof. Formed structure.

In the first embodiment of the present invention, each through hole 32b formed on the fitting member 32 is formed at 120 ° intervals, and may be formed at 90 ° intervals or 60 ° intervals as necessary.

The actuating member 33 is configured to be operated from above from below in a state of being fitted inside the fitting member 32, and a wedge-shaped tapered surface 33a is formed around the lower end of the actuating member to narrow downwardly. The outer circumferential surface corresponding to the upper side of the tapered surface 33a has a structure in which a screw portion 33b is engaged with the screw portion 32a on the fitting member 32.

A screw groove 33c having a predetermined depth is formed at the center of the upper surface of the operating member 33.

In the present invention, the locking pin 34 is configured to be fitted through each through hole 32b formed on the fitting member 32.

When the operating member 33 is lowered while the engaging pins 34 are fitted in the through holes 32b on the fitting member 32, the locking pins 34 simultaneously with the tapered surface 33a formed at the lower end of the operating member 33. The outer end of the through hole 32b protrudes outward while being in surface contact, so that the outer end of the through hole 32b is firmly adhered to the inner wall of the housing 31 so that the fitting member 32 fitted inside the housing 31 is not separated.

Accordingly, the inner end of each engaging piece 34 is inclined to be in surface contact with the tapered surface 33a formed at the lower end of the operating member 33.

In the first embodiment of the present invention end cap 42 is fitted to the lower end of the fitting member 32, the end cap 42 is screwed into the inner side from the bottom of the fitting member 32, The central portion of the upper surface has a structure in which a spring receiving groove 42a having a predetermined depth is formed.

The spring receiving groove 42a formed on the upper surface of the end cap 42 is fitted with a spring 43 which is always elastically upwards.

An upper end of the spring 43 supports an inner end of each locking pin 34 fitted through each through hole 32b of the fitting member 32 so that the locking pin 34 does not escape inward. Support piece 35 is coupled.

The actuating rod 36 is configured to have a length capable of sufficiently protruding outward through the center hole of the wheel hub 37 in a state of being fitted into the screw groove 33c on the actuating member 33. A threaded portion 36a is formed on the outer circumferential surface.

The actuating rod 36 may be directly screwed to the 33c formed on the upper surface of the actuating member 33, and may be connected via a separate eye bolt 44 as shown in the drawing.

The spring support 38 is configured to be in close contact with the outer surface of the wheel hub 37 in the state of being fitted to the operating rod (36).

In addition, the operating rod 36 corresponding to the outside of the spring support 38 is configured to be in close contact with the outer surface of the spring support 38 in the state in which the tightening spring 39 is fitted.

On the other hand, the operating rod 36 corresponding to the outer side of the tightening spring 39 is configured to be in close contact with the outer end of the tightening spring 39 in the state in which the washer 45 is fitted, and corresponds to the outer side of the washer 45. The fastening nut 40 is screwed to the threaded portion 36a on the actuating rod 36.

The tightening nut 40 serves to tighten or loosen the tightening spring 39 with respect to the spring receiver 38 by tightening and releasing operations in close contact with the outer surface of the washer 45.

The outer end of the operating rod 36 is configured to be a separate fixing plate 46 is screwed.

In addition, on the operating rod 36 corresponding to the tightening nut 40 and the fixing plate 46, a separate slide hammer 41 is fitted to be slidably coupled.

The slide hammer 41 strikes the fixed plate 46 by an internal sliding movement from the inside to the outside to apply a separation force to the housing 31 in which the fitting member 32 is fitted.

The operation of the first embodiment of the present invention made as described above is as follows.

2 to 7, in the case of repairing or replacing a constant velocity joint assembly for a vehicle, first, the doble offset joint connected to the wheel hub side is removed, and then the boot of the burfield joint connected to the transaxle side is removed, and Separate the combined inner connecting shaft and the ball and cage.

In this state, the fitting member 32 is inserted into the housing 31 constituting the burfield joint, and the operating member 33 is inserted into the fitting member 32 to rotate in a predetermined direction. The operating member 33 enters into the fitting member 32 by the interaction between the screw portion 33b on the member 33 and the threaded portion 32a in the fitting member 32.

When the actuating member 33 enters into the fitting member 32, the tapered surface 33a formed at the lower end of the actuating member 33 is fitted through the through hole 32b on the fitting member 32. As the surface in contact with the inner end of the pin 34, the engaging pins 34 protrude outwardly through the through holes 32b, so that they are firmly adhered to the inner wall surface of the housing 31 and do not fall out.

In this state, the operating rod 36 is connected or inserted through the center hole of the wheel hub 37 in a state where the eye bolt 44 is inserted into the screw groove 33c formed on the upper surface of the operating member 33. The spring bearing 38, the tightening spring 39, the washer 45, the tightening on the actuating rod 36 corresponding to the outer surface of the wheel hub 37 in a state where the front end of the actuating rod 36 is directly screwed together. The nut 40, the slide hammer 41 and the fixing plate 46 are sequentially coupled.

In this state, when the tightening nut 40 is tightened, the tightening spring 39 is pressed against the spring receiver 38 and the housing 31 is pulled to the maximum direction in the direction of the wheel hub 37.

In such a state, when the slide hammer 41 is pulled toward the fastening nut 40 and then pushed to the fixing plate 46, the slide hammer 41 is strongly hit by the fixing plate 46 to the housing 31. Separation force acts.

When the hitting action of the slide hammer 41 is repeated, the housing 31 is separated from the transaxle by the force of the slide hammer 41 hitting the fixed plate 46.

In the first embodiment of the present invention, the locking pin support piece 35 pushed upward by the spring 43 on the upper surface of the end cap 42 is fitted with the fitting member 32 before the operating member 33 enters. It serves to support the inner end of the engaging pin 34 fitted in each through hole (32b) on the) so as not to be separated.

In addition, when the operating member 33 enters into the fitting member 32, the spring 43 is compressed while being pushed by the entry force, and when the entry force is removed, the restoring force of the spring 43 is reduced. By rising upward again to support the inner end of the locking pin (34).

On the other hand, the housing separating apparatus of the constant velocity joint for automobiles according to the second embodiment of the present invention is made as shown in FIGS.

8 is an exploded perspective view showing a housing separating apparatus of a constant velocity joint for automobiles according to a second embodiment of the present invention, and FIG. 9 is a coupled state of a housing separating apparatus of constant velocity joint for automobiles according to a second embodiment of the present invention. It is sectional drawing to show.

In addition, Figure 10 is a cross-sectional view of the use state of the housing separating apparatus of the constant velocity joint for automobiles according to the second embodiment of the present invention.

Referring to this, the housing separating apparatus 100 of the constant velocity joint for automobiles according to the second embodiment of the present invention is a fitting member 102 that is fitted to the inside of the housing 101 constituting the Burfield joint largely, the fitting An operating member 103 fitted to the member 102, a locking pin 104 to prevent the fitting member 102 fitted to the housing 101 from being separated, and a predetermined length connected to the operating member 103. An actuation rod 105.

In addition, in the second embodiment of the present invention, the spring bearing 107 which allows the housing 101 coupled with the fitting member 102 to be pulled toward the wheel hub 106 as far as possible from the outside of the wheel hub 106 on the manual axle side. ), A case 108, a fastening plate 109, a fastening spring 110, and a fastening nut 111.

In the second embodiment of the present invention as described above, the fitting member 102, like the fitting member 32 in the first embodiment of the present invention so that it can be easily fitted to the housing 101 constituting the constant velocity joint assembly It is formed to have a diameter smaller than the inner diameter of (101).

A threaded portion 102a is formed from an upper portion of the inner circumferential surface of the fitting member 102 downwards over a predetermined length range, and communicates with the inside at a position divided by a predetermined angle (120 ° or 90 °) on the outer circumferential surface thereof. It has a structure in which a plurality of through holes 102b are formed.

The operating member 103 is configured to be operated from above to below in a state of being fitted inside the fitting member 102.

A wedge-shaped tapered surface 103a is formed around the lower end of the actuating member 103, and a threaded portion on the fitting member 102 is formed on the outer circumferential surface corresponding to the upper side of the tapered surface 103a. It is made of a structure formed with a screw portion (103b) is coupled to (102a).

A screw groove 103c having a predetermined depth is formed at the center of the upper surface of the operating member 103.

In the second embodiment of the present invention, the locking pin 104 is configured to be fitted through each through hole 102b formed on the fitting member 102.

Each of the locking pins 104 is tapered surface 103a formed at the lower end of the operating member 103 when the operating member 103 is lowered while being fitted in each through hole 102b on the fitting member 102. At the same time, the outer end thereof protrudes outwardly through the through hole 102b while being in surface contact, thereby firmly contacting the inner wall surface of the housing 101, thereby preventing the fitting member 102 fitted into the housing 101 from being detached. .

Accordingly, the inner end portions of the engaging pins 104 are inclined to be in surface contact with the tapered surface 103a formed at the lower end of the operation member 103.

In addition, the end cap 112 is fitted to the lower end of the fitting member 102 by a press-fit method.

The actuating rod 105 is fitted to the threaded groove 103c on the actuating member 103 and is configured to have a length enough to protrude outwardly after being fitted through the center hole of the wheel hub 106. The thread portion 105a is formed on the outer circumferential surface of the operation rod 105.

The actuating rod 105 may be directly screwed into the screw groove 103c formed on the upper surface of the actuating member 103, and as in the first embodiment of the present invention, through a separate eye bolt 44. May be connected.

The spring support 107 is configured to be in close contact with the outer surface of the wheel hub 106 in the state fitted to the operating rod 105.

In the second embodiment of the present invention, the cylindrical rod 108 having a space portion 108a having a predetermined depth therein is disposed in the operation rod 105 protruding outward of the spring receiver 107.

A fastening plate 109 is inserted into the space portion 108a from the inner end of the case 108 so that the distal end protrudes outside the outer end of the case 108 by a predetermined length.

In addition, a fastening spring 110 contacted with the fastening plate 109 is fitted into the space portion 108a from the inner end of the case 108, and a stopper is attached to the inner end of the case 108. 113 is screwed together and fitted.

Tightening nut for tightening or releasing the tightening spring 110 by the tightening and loosening operation in a state in close contact with the outer surface of the fastening plate 109 to the operating rod 105 corresponding to the outer end of the case 108 111 is configured to be screwed.

The operation of the second embodiment of the present invention made as described above is as follows.

8 to 10, in case of repairing or replacing a constant velocity joint assembly for a vehicle, first, the doble offset joint connected to the wheel hub side is removed, and then the boot of the burfield joint connected to the transaxle side is removed, and Separate the combined inner connecting shaft and the ball and cage.

In this state, the fitting member 102 is inserted into the housing 101 constituting the burfield joint, and the operating member 103 is inserted into the fitting member 102 to rotate in a predetermined direction. The operating member 103 enters into the fitting member 102 by the interaction of the threaded portion 103b on the member 103 and the threaded portion 102a in the fitting member 102.

When the actuating member 103 enters into the fitting member 102, the tapered surface 103a formed at the lower end of the actuating member 103 is fitted through the through hole 102b on the fitting member 102. As the surface in contact with the inner end of the pin 104, the engaging pins 104 protrude outwardly through the through hole 102b, so as to be firmly adhered to the inner wall surface of the housing 101 so as not to be pulled out.

In this state, the inner end of the operating rod 105 is fitted into the screw groove 103c formed on the upper surface of the operating member 103, and the outer end of the operating rod 105 is the center of the wheel hub 106. Insert through the ball and protrude outward.

In this state, the case 108 is coupled to the spring receiving 107 and the tightening plate 109, the tightening spring 110, the stopper 113 on the operation rod 105 protruding outwardly of the wheel hub 106 ) And the tightening nut 111 are sequentially combined.

In this state, when the tightening nut 111 is tightened, the tightening plate 111 pushes the tightening spring 110, and the tightening spring 110 is pressed against the spring receiver 107 via a stopper 113. As the housing 101 is maximally pulled toward the wheel hub 106.

If the tightening action of the tightening nut 111 continues, the housing 101 is separated from the transaxle as the working rod 105 is pulled toward the wheel hub 106.

When the present invention is applied, the fitting member is inserted into the housing constituting the constant velocity joint, and the operating rod is coupled to the operating member in a state where the engaging pin is brought into close contact with the inner wall surface of the housing by entering the operating member, and the wheel Tighten the tightening nut from the outside of the hub to maximize the housing towards the wheel hub, or by sliding the slide hammer several times while the housing is pulled toward the wheel hub by the tightening action of the tightening nut to strike the fixed plate. As the housing is separated by the method, the housing can be easily separated with a remarkably small force compared to the conventional method, and as a result, the workability is remarkably improved.

1 is a cross-sectional view showing a constant velocity joint assembly of a typical vehicle;

Figure 2 is an exploded perspective view showing a housing separating apparatus of the constant velocity joint for automobiles according to the first embodiment of the present invention,

3 is an exploded perspective view showing main parts in the first embodiment of the present invention;

4 is an enlarged cross-sectional view of the coupling state of FIG.

5 is a partial cross-sectional view showing an installation state of a housing separating apparatus of a constant velocity joint for automobiles according to a first embodiment of the present invention;

6 is a cross-sectional view showing a state of operating the slide hammer in FIG.

7 is a state of use of the housing separating apparatus of the constant velocity joint for automobiles according to the first embodiment of the present invention,

8 is an exploded perspective view showing a housing separating apparatus of a constant velocity joint for automobiles according to a second embodiment of the present invention;

9 is a cross-sectional view showing a coupling state of the housing separating apparatus of the constant velocity joint for automobiles according to the second embodiment of the present invention;

10 is a cross-sectional view of a state in which the housing separating apparatus of the constant velocity joint for automobiles according to the second embodiment of the present invention is used.

* Description of the symbols for the main parts of the drawings *

32,102: fitting member 33,103: operating member

34,104: locking pin 35: locking pin support

36,105: working rod 38,107: spring bearing

39,110 tightening spring 40,111 tightening nut

41: slide hammer 46: fixed plate.

109: captive plate.

Claims (5)

It has a diameter smaller than the inner diameter of the housing constituting the constant velocity joint assembly, has a thread portion formed over a predetermined length from the top of the inner circumferential surface, and has a plurality of through holes communicating with the inside at a position for dividing the outer circumferential surface at a predetermined angle. Fitting member; A wedge-shaped tapered surface narrows toward the bottom of the lower end portion is formed, and an outer circumferential surface corresponding to the upper side of the tapered surface is formed with a screw portion coupled with the threaded portion on the fitting member, and a screw having a constant depth in the center of the upper portion. An operation member of a predetermined length having a groove formed therein; A plurality of locking pins protruding outwardly by the entry action of the operation member in a state of being fitted through each through hole formed on the fitting member so that the fitting member inserted into the housing is not separated; An end cap fitted into the inner surface from the bottom of the fitting member and having a spring receiving groove formed at a center of the upper surface thereof; A spring which always springs upward in a state of being fitted into a spring receiving groove formed on an upper surface of the end cap; A locking pin support piece for supporting the inner end of each locking pin fitted through the through hole of the fitting member in the elastically installed state by the spring so that the locking pin does not escape inwardly; An actuating rod of a predetermined length fitted through a center hole of the wheel hub in a state of being fitted into the screw groove on the actuating member and having a screw portion formed on an outer circumferential surface thereof; A spring support having a predetermined shape in close contact with an outer surface of the wheel hub in a state of being fitted into the operation rod; A tightening spring in close contact with an outer side of the spring bearing in a state of being fitted into the operation rod; A washer in close contact with an outer end of the tightening spring in a state of being fitted into the operation rod; A fastening nut screwed to the actuating rod and tightening or releasing the tightening spring with respect to the spring receiver by tightening and releasing action in a state of being in close contact with the outer surface of the washer; A fixed plate screwed to an outer end of the actuating rod; And a slide hammer for applying a separation force to the housing into which the fitting member is inserted by striking the fixing plate by an operation of sliding slidingly from the inner side to the outer side while being slidably fitted on the operation rod corresponding to the tightening nut and the fixing plate. Housing separation device for a constant velocity joint for automobiles, characterized in that. The method of claim 1, Each through-hole formed on the fitting member is a housing separating apparatus of a constant velocity joint for a vehicle, characterized in that formed at intervals of 120 °. The method of claim 1, The operating rod is a housing separating device of a constant velocity joint for a vehicle, characterized in that connected via the eye bolt is fitted into the screw groove formed on the upper surface of the operating member. The method of claim 1, The inner end portion of the engaging pin which is fitted in each through hole on the fitting member is inclined so as to be in surface contact with the tapered surface formed on the lower end of the operation member. It has a diameter smaller than the inner diameter of the housing constituting the constant velocity joint assembly, has a thread portion formed over a predetermined length from the top of the inner circumferential surface, and has a plurality of through holes communicating with the inside at a position for dividing the outer circumferential surface at a predetermined angle. Fitting member; A wedge-shaped tapered surface narrows toward the bottom of the lower end portion is formed, and an outer circumferential surface corresponding to the upper side of the tapered surface is formed with a screw portion engaged with the threaded portion on the fitting member, and a constant depth is provided at the center of the upper portion. An actuating member having a predetermined length having a screw groove formed therein; A plurality of locking pins protruding outwardly by the entry action of the operation member in a state of being fitted through each through hole formed on the fitting member to tightly adhere to the inner circumferential surface of the housing while preventing the fitting member from being separated; An end cap inserted into and fixed to a predetermined height from the bottom of the fitting member to an inner side thereof; An actuating rod of a predetermined length fitted into a screw groove on the actuating member in a state of being fitted through the center hole of the wheel hub on the manual axle side, and having a screw portion formed on an outer circumferential surface thereof; A spring support having a predetermined shape in close contact with an outer surface of the wheel hub in a state of being fitted into the operation rod; A cylindrical case disposed to be inserted into the operation rod from the outside of the spring bearing and having a space portion having a predetermined depth therein; A tightening plate coupled to the front end of the case so as to protrude by a predetermined length outward of the outer end of the case in a state fitted inward from the inner end of the case; A tightening spring inserted inward from the inner end of the case and in contact with the tightening plate; A case plug fitted into the inner end opening of the case by a screwing method; And a tightening nut which is screwed to the actuating rod and tightens or loosens the tightening spring by tightening and releasing action in a state of being in close contact with the outer surface of the tightening plate.