KR20120021839A

KR20120021839A - Strut mounting type stabilizer bar device

Info

Publication number: KR20120021839A
Application number: KR1020100080198A
Authority: KR
Inventors: 손준형
Original assignee: 현대모비스 주식회사
Priority date: 2010-08-19
Filing date: 2010-08-19
Publication date: 2012-03-09

Abstract

PURPOSE: A strut mounting-type stabilizer bar device is provided to prevent degradation of durability due to excessive deformation of a boot because movement of a ball joint is delivered to a stabilizer rod and decentralized. CONSTITUTION: A strut mounting-type stabilizer bar device comprises a stabilizer link(4) and a stabilizer rod(5). The stabilizer link crosses breadth of a car and supports to a lower arm(2). One end of the stabilizer rod is coupled to the end of the stabilizer link by a ball joint(9). The other end of the stabilizer rod is coupled to a strut by a ball joint(10). The stabilizer rod is delivered torque of the strut through the ball joint of the strut in order to rotate. The stabilizer rod comprises a top rod bar(7), a bottom rod bar(8), and a ring bearing(20).

Description

Strut Mounting type Stabilizer Bar Device

The present invention relates to a stabilizer bar, and more particularly, to a strut mounting type stabilizer bar device that reduces the noise of the ball joint and does not weaken the durability of the boot surrounding the ball joint.

In general, the stabilizer bar mounted on the strut rather than the lower arm improves the lever ratio, thereby increasing the efficiency of the stabilizer bar and reducing the weight of the stabilizer bar.

That is, since the lever ratio of the stabilizer bar mounted on the strut is L1 / L2 = 1.0, and the lever ratio of the stabilizer bar mounted on the lower arm is about L1 / L2 = 0.7 to 0.8, the lever ratio L1 / L2 is 1, Stabilizer bars mounted on a zero strut can reduce weight by reducing the diameter size of the stabilizer bar compared to the same roll stiffness.

Here, L1 is the distance from the lower arm to the end of the stabilizer link to which the stabilizer rod is fastened, and L2 is the distance from the lower arm to the wheel connection point of the tie rod.

When the weight of the stabilizer bar is reduced, a side effect of improving fuel economy of the vehicle may also be achieved.

The stabilizer bar mounted on the strut as described above includes: a stabilizer link across the vehicle width; A stabilizer rod, one side of which is fastened to the end of the stabilizer link via a ball joint, and the other side of which is fastened to the strut via a ball joint; It consists of.

The stabilizer rod is in a vertical position, and the ball joint portion is covered with a rubber boot to prevent foreign matter from entering.

When steering is made, a rotational motion occurs in the strut and is transmitted to the stabilizer bar mounted on the strut, but the rotational motion of the strut is not constrained by the oscillation caused by the rotation of the strut in the ball joint fastened to the strut side.

However, since the rotational movement of the strut is supported only by the swinging motion of the ball joint as described above, the swinging angle of the ball joint is inevitably excessive, and the excessive swinging angle of the ball joint causes noise due to the gap between the joints of the ball joint. It acts as a cause of the deterioration of vehicle quality.

In addition, the repetitive swinging of the ball joint also acts as a cause of remarkably lowering the durability of the boot by repeatedly pulling and compressing the boot made of rubber material.

Accordingly, the present invention in view of the above point is because the movement of the ball joint generated by the rotational movement of the strut by steering is transmitted to the stabilizer rod fastened to the end of the stabilizer link to be distributed, thereby causing the swing of the ball joint. It is an object of the present invention to provide a strut mounting type stabilizer bar device that can prevent the noise caused by each excess and the deterioration caused by excessive deformation of the boot.

The strut mounting type stabilizer bar device of the present invention for achieving the above object comprises: a stabilizer link across the vehicle width and supported on the lower arm side;

One side is fastened to the end of the stabilizer link via a ball joint and the other side is fastened to the strut via a ball joint, the stabilizer rod is rotated by receiving the rotational force of the strut through the ball joint of the strut; Characterized in that configured.

The stabilizer rod has an upper rod bar coupled to a ball joint fixed to the strut, a lower rod bar coupled to a ball joint fixed to the stabilizer link, and an upper rod coupled to a connection portion of the upper and lower rod bars. It consists of a ring bearing that enables the rotation of the bar.

The upper rod bar has a caulking coupling end to narrow the inlet diameter of the hollow hole is formed in the inlet portion of the hollow hole to make the interior empty space, the lower rod bar is the lower end so that the insertion end of a predetermined length is inserted into the hollow hole A neck with a reduced diameter of the rod bar is formed.

The ring bearing is provided between the caulking coupling end and the neck.

An inner coating layer is coated on the inner surface of the hollow hole, and the coating layer is coated with a graphite coating.

The present invention can prevent the rotational movement of the strut due to steering is dispersed by using the ball joint and the stabilizer rod connected thereto to prevent degradation of the durability due to excessive deformation of the boot and noise due to excessive swing angle of the ball joint, and field claims Lowering the rate will increase the brand's awareness.

1 is a configuration and operation of the strut mounting type stabilizer bar device according to the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Since the exemplary embodiments of the present invention may be embodied in various different forms, one of ordinary skill in the art to which the present invention pertains may be described herein. It is not limited to the Example to make.

1 shows a configuration of a strut mounting type stabilizer bar device according to the present invention.

As shown, the stabilizer bar device has a stabilizer link 4 across the vehicle width and supported by a bracket on the lower arm 2 side, and one end is fastened to the end of the stabilizer link 4. The opposite side consists of a stabilizer rod 5 fastened to the strut 1.

The stabilizer bar device is of a type mounted on a strut having a lever ratio L1 / L2 = 1.0. Here, L1 is the distance from the lower arm to the end of the stabilizer link to which the stabilizer rod is fastened, and L2 is the distance from the lower arm to the wheel connection point of the tie rod.

The stabilizer rod 5 is erected vertically from the stabilizer link 4 toward the strut 1 at the ball joints 10 and 9 respectively fastened to the stabilizer link 4 and the strut 1. Both ends are coupled to the ball joints (10, 9) and consists of a rod bar (6) which rotates together with the strut (1).

The rod bar 6 has an upper rod bar 7 coupled to a ball joint 9 fixed to the strut 1 and a lower rod bar coupled to a ball joint 10 fixed to the stabilizer link 4. (8) and the ring bearing 20 is coupled to the connecting portion of the upper and lower rod bars (7, 8) to enable the rotation of the upper rod bar (7).

Connection portions of the upper and lower rod bars 7 and 8 have various structures, but in this embodiment, a structure in which the lower rod bar 8 is inserted into the upper rod bar 7 is applied.

To this end, the upper rod bar 7 is formed with a hollow hole (7a) to make the interior empty space, the caulking coupling end (7b) to narrow the inlet diameter of the hollow hole (7a) at the inlet of the hollow hole (7a) ) Has a formed structure.

In addition, the lower rod bar 8 is formed with a neck portion 8b having a reduced diameter of the lower rod bar 8 such that an insertion end 8a of a predetermined length A is formed. The constant length A is formed to a sufficient length so that the lower rod bar 8 is not buckled.

In this embodiment, since the upper rod bar 7 is rotated, the coating layer 7c is applied to the inner surface of the hollow hole 7a in which the insertion end 8a of the lower rod bar 8 is inserted, and the coating layer ( 7c) is applied with a graphite coating.

In addition, the caulking coupling end (7b) of the lower rod bar (8) is coking coupled in the state provided with a ring bearing 20 on the neck portion (8b) of the lower rod bar (8), the lower rod bar (8) In the caulking coupling end (7b) of the) is formed a cross-sectional structure in which the ring bearing 20 is seated and can be fixed, the ring bearing 20 is also seated and fixed to the neck (8b) of the lower rod bar (8) To form a cross-sectional structure.

In this embodiment, the ball joints 9 and 10 are covered with a boot of rubber material to prevent foreign matter from entering.

As described above, the stabilizer bar device according to the present embodiment has a stabilizer rod 4 and a stabilizer rod 5 and is mounted on a strut having a lever ratio L1 / L2 = 1.0, and the stabilizer rod ( 5) is composed of a pair of upper rod bar 7 and the lower rod bar (8) rotatably coupled via the ring bearing (20).

Therefore, when the strut 1 is rotated due to steering, the upper rod bar 7 may also be rotated together through the ring bearing 20 to reduce the rocking motion of the ball joint 9 so that This prevents degradation of durability and reduces noise.

1: Strut 2: Lower Arm
3: tie rod 4: stabilizer link
5: stabilizer rod 6: rod bar
7,8: upper and lower rod 7a: hollow hole
7b: coking bond stage 7c: coating layer
8a: insertion end 8b: neck
9,10: ball joint 20: ring bearing

Claims

A stabilizer link across the vehicle width and supported by the lower arm;
One side is fastened to the end of the stabilizer link via a ball joint and the other side is fastened to the strut via a ball joint, the stabilizer rod is rotated by receiving the rotational force of the strut through the ball joint of the strut; Strut mounting type stabilizer bar device, characterized in that configured.

The stabilizer rod of claim 1, wherein the stabilizer rod is connected to an upper rod bar coupled to a ball joint fixed to the strut, a lower rod bar coupled to a ball joint fixed to the stabilizer link, and a connection portion between the upper and lower rod bars. Strut mounting type stabilizer bar device, characterized in that consisting of a ring bearing coupled to enable the rotation of the upper rod.

The strut mounting type stabilizer bar device according to claim 2, wherein the lower rod bar is inserted into the upper rod bar, and the ring bearing is provided at the insertion portion.

According to claim 3, The upper rod bar is formed at the inlet portion of the hollow hole to make the hollow space inside the caulking coupling end to narrow the inlet diameter of the hollow hole, the lower rod bar is inserted into the hollow hole of a predetermined length Strut mounting type stabilizer bar device, characterized in that the neck portion is formed to reduce the diameter of the lower rod bar to be formed.

5. The strut mounting type stabilizer bar device according to claim 4, wherein the ring bearing is provided between the caulking coupling end and the neck.

5. The strut mounting type stabilizer bar device according to claim 4, wherein a coating layer is coated on an inner surface of the hollow hole.

7. The strut mounting type stabilizer bar device according to claim 6, wherein the coating layer is a graphite coating.