KR20010047151A - Supportting apparatus bearing of ball joint - Google Patents

Abstract

PURPOSE: A device for supporting a bearing of a ball joint is provided to save time required for assembling and disassembling, to calculate the optimal component exchange ratio and to enlarge life of products by minimizing interval between a plastic bearing and a ball stud. CONSTITUTION: A device for supporting a bearing of a ball joint includes a connection hole(108), a wave spring(109) and a snap ring(110). The connection hole formed in a bearing housing(106). The connection hole has a prescribed depth and a slant surface for forming an interval space(107) from a lower portion of a plastic bearing(103). The wave spring is connected to an upper portion of the plastic bearing and a ball stud(101) inserted into the connection hole and elastically supports the plastic bearing downwardly. The snap ring is arranged on an upper portion of the wave spring and inserted into the ball stud for supporting the wave spring.

Description

SUPPORTTING APPARATUS BEARING OF BALL JOINT}

The present invention provides a plastic bearing coupled to a ball stud of an automotive ball joint attached to a low arm or upper arm and inserted into a coupling groove of a bearing housing having a predetermined inclined surface and preventing the plastic bearing from being detached from the ball joint housing. The bearing is a bearing supporting device for a vehicle ball joint inserted into an upper part of a plastic bearing and a ball stud. And a coupling spring of the formed bearing housing, a wave spring inserted into an upper portion of the plastic bearing to be inserted into the coupling groove and a ball stud so as to hold the plastic bearing downward, and disposed to an upper portion of the wave spring. Inserted into the wave spring By including the snap ring to support, even if the inner surface of the plastic bearing is worn out by the up, down, left and right rotational movement of the ball studs, the plastic bearing is lowered by the elasticity of the compression-assembled wave spring, The present invention relates to a ball joint bearing support device capable of extending the life of a product since the inner surface is reduced and thus the clearance is eliminated.

In general, the plastic bearing (3) coupled to the ball joint is a ball stud (1) of the plastic bearing (3) when the steering is made by the driver operating the steering device or the vehicle moves up and down even when the vehicle is stationary or in progress. Rotating up, down, left and right inside.

Therefore, wear occurs between the ball stud 1 and the plastic bearing 3 in the above state.

In addition, when the vehicle is used for a long time, play may occur due to wear of the plastic bearing 3, and thus, a joint may be loosened at the coupling portion of the plastic bearing 3 and the ball stud 1, thereby forming an upper arm or a low arm ( 2) causes a problem that acts as a factor that inhibits the free rotation of the ball stud (1) coupled to the bearing housing (6).

In addition, in order to prevent the plastic bearing 3 from being detached from the coupling groove 8 of the bearing housing 6, the plug 4 is inserted into the upper portion of the plastic bearing 3 as shown in FIG. The upper part of 6) is caulked as shown in FIG. 1, and after caulking the upper part of the bearing housing 6 as described above, when after-service is required, accessory parts are often damaged during the dismantling of the caulking part. Since it is impossible to replace only the plastic bearings 3, there is also an inefficient and inefficient problem of having to replace the plugs 4 or, in serious cases, also replace the bearing housings 6.

In addition, as described above, because the assembly and disassembly time is delayed, workability is greatly reduced, resulting in a decrease in work efficiency and a decrease in productivity.

The present invention has been made to solve the above problems, even if the plastic bearing is worn by the ball studs, even if the clearance space occurs by correcting this to minimize the occurrence of the joint between the plastic bearings and ball studs to extend the life of the product At the same time, it is easy to disassemble and disassemble the parts, so that only necessary parts can be replaced, saving time for disassembling and optimizing parts replacement cost. do.

In order to achieve the above object, the present invention provides a coupling groove of a bearing housing having a predetermined depth and an inclined surface such that a space spaced a predetermined distance from a lower portion of the plastic bearing is formed, and a plastic bearing inserted into the coupling groove. A wave spring inserted into an upper portion and a ball stud to hold the plastic bearing downward, and a snap ring disposed to an upper portion of the wave spring and inserted into the ball stud to support the wave spring.

In addition, a screw screw having a predetermined depth is formed on the inner circumferential surface of the coupling groove of the bearing housing, and a male screw portion is formed on the outer circumferential surface to be fastened to the screw portion, and an adjust screw having an insertion hole formed therein so that the ball stud can be inserted therein. To support the wave springs.

1 is a view showing the structure of a conventional ball joint.

2 is a view showing a plug of a conventional ball joint.

Figure 3 shows the structure of the ball joint of the present invention.

4 is a view showing a snap ring according to the present invention.

5 is a view showing a wave spring according to the present invention.

6 is a view showing an adjust screw according to an embodiment of the present invention.

Explanation of Drawings

101-bolst 102-ball 103-plastic bearing

104-upper or low arm 105-slope 106-bearing housing

107-space 108-engagement 109-wave spring

110-Snap Ring 111-Male thread 112-Inlet

113-adjust screw 114-dust cover

Hereinafter, the configuration of the present invention will be described in Figures 3 to 6 as follows.

A plastic bearing coupled to the ball joint for automobile ball joint is attached to the low arm or upper arm and inserted into the coupling groove of the bearing housing having a predetermined slope and prevents the plastic bearing from detaching from the ball joint housing. In the bearing support device of the automotive ball joint inserted into the upper part of the plastic bearing and the ball stud, it is formed having a predetermined depth and inclined surface so that a space 107 of a predetermined distance is formed from the lower part of the plastic bearing 103. The coupling groove 108 of the bearing housing 106 and the upper part of the plastic bearing 103 inserted into the coupling groove 108 and the ball stud 101 are inserted into the coupling groove 108 so that the plastic bearing 103 faces downward. The wave spring 109 and the wave spring 109 disposed above the wave spring 109 and inserted into the ball stud 101 It includes a retaining ring 110, to support a spring (109).

In addition, a male portion (not shown) having a predetermined depth is formed on the inner circumferential surface of the coupling groove 108 of the bearing housing 106, and a male thread portion 111 is formed on the outer circumferential surface so as to be fastened to the screw portion, and a ball stud is formed inside. The wave spring 109 is supported by an adjust screw 113 having an insertion hole 112 formed therein so that the 101 can be inserted therein.

Reference numeral 114 in the drawings is a dust cover.

The technique of the present invention having the above-described configuration will be described with reference to FIGS. 3 to 6 as follows.

First, the coupling groove 8 formed in the conventional bearing housing 6 is deeper, and the plastic bearing 103 in which the ball 102 of the ball stud 101 is coupled is inserted into the coupling groove 108.

At this time, the plastic bearing 103 is inserted along the inclined surface 105 in the coupling groove 108 and is coupled with a space 107 of a predetermined distance from the lower side at a predetermined position.

As shown in FIG. 3, the wave spring 109 as shown in FIG. 5 is inserted into the ball stud 101 and coupled to the upper portion of the plastic bearing 103. After coupling the snap ring 110 shown in FIG. 4 to the upper part as shown in FIG. 3, the snap ring 110 is caulked to the upper end of the bearing housing 106.

When the present invention is combined in the above configuration, the elasticity of the wave spring 109 disposed on the upper portion of the plastic bearing 103 even if the inside of the plastic bearing 103 is worn down by the up, down, left and right rotational movements of the ball stud 101. As a result, the plastic bearing 103 is pushed downward along the tapered inclined surface 105 to reduce the inner surface of the plastic bearing 103 so that there is no play.

Therefore, the clearance of the inner surface of the plastic bearing 103 is eliminated by the wave spring 109 of the upper portion is to extend the life of the product.

In addition, as shown in FIG. 6, the adjust screw 113 may be fastened to a screw (not shown) formed in a predetermined length from the upper end of the bearing housing 106 to the lower side to support the wave spring 109. As a result, assembly time can be shortened, disassembly and assembly time is shortened during after-sales service or parts replacement, and accessory parts are not damaged by ease of disassembly and assembly, thereby reducing the repair cost.

As described above, the present invention allows the plastic bearings coupled to the ball studs to be pushed downward so that the play occurs on the inner surface of the plastic bearings so that the plastic bearings are pushed downward along the inclined surfaces of the coupling grooves. The clearance of the inner surface of the bearing can be reduced to extend the life of the product. In addition, the assembly disassembly operation is facilitated by fastening the adjust screw to the upper portion of the coupling groove in coupling the plastic bearing to the coupling groove. It is a very useful invention that can reduce the cost by improving the inefficient work that damages the accessory parts and replaces them.

Claims (2)

In the bearing support device of the automotive ball joint in which the plastic bearing coupled to the ball stud of the automotive ball joint is inserted into the coupling groove of the bearing housing, The plastic bearing is inserted into a coupling groove of a bearing housing having a predetermined depth and an inclined surface so as to form a space spaced from a lower portion of the plastic bearing, an upper portion of the plastic bearing inserted into the coupling groove, and a ball stud. The bearing support device of the ball joint, characterized in that it comprises a wave spring to be supported toward the lower side, and a snap ring disposed on top of the wave spring and inserted into the ball stud to support the wave spring. The method of claim 1, A screw thread having a predetermined depth is formed on the inner circumferential surface of the coupling groove of the bearing housing, and a male screw portion is formed on the outer circumferential surface to be fastened to the screw portion, and an insert screw is formed in which an insertion hole is formed so that the ball stud can be inserted therein. A bearing support device for a ball joint comprising supporting a spring.