阅读说明：本技术 一种降低异响的汽车缓冲块结构 (Reduce car buffer block structure of abnormal sound ) 是由 周旭峰 陈波 蒋兵 王诗虎 储起飞 彭国君 于 2020-06-02 设计创作，主要内容包括：本发明公开了一种降低异响的汽车缓冲块结构,具有：缓冲块上支架,其上设有安装孔；缓冲块,其第一端与缓冲块上支架的安装孔相适配；减振器,减振器的减振器导杆与缓冲块的第二端连接；缓冲块的第一端的外周设有一系列的凸台,缓冲块通过凸台与缓冲块上支架的安装孔相适配,结构简单、制造方便、不影响缓冲块的可靠性,并且有效了降低了缓冲块的异响风险。(The invention discloses an automobile buffer block structure for reducing abnormal sound, which comprises: the buffer block upper bracket is provided with a mounting hole; the first end of the buffer block is matched with the mounting hole of the upper bracket of the buffer block; the shock absorber guide rod of the shock absorber is connected with the second end of the buffer block; the periphery of the first end of buffer block is equipped with a series of bosss, and the buffer block passes through the boss and the mounting hole looks adaptation of buffer block upper bracket, simple structure, manufacturing convenience, do not influence the reliability of buffer block to the abnormal sound risk of buffer block has effectively been reduced.)

1. An automobile bumper structure for reducing abnormal sound, comprising:

the buffer block upper bracket is provided with a mounting hole;

the first end of the buffer block is matched with the mounting hole of the upper bracket of the buffer block;

the shock absorber guide rod of the shock absorber is connected with the second end of the buffer block; the periphery of the first end of the buffer block is provided with a series of bosses, and the buffer block is matched with the mounting hole of the upper support of the buffer block through the bosses.

2. The structure of reducing abnormal noise of a vehicle bumper according to claim 1, further comprising a reinforcing ring fitted around a middle portion of the bumper.

3. The structure of reducing abnormal noise of a motor vehicle bumper according to claim 2, wherein an arc-shaped groove is formed near the middle of the bumper, and the reinforcing ring is fitted into the arc-shaped groove.

4. The structure of reducing abnormal noise in a vehicle bumper according to claim 3, wherein the arc-shaped groove is provided with an anti-friction stripe.

5. The structure of reducing abnormal noise of a car bumper according to claim 4, wherein the bumper has a tapered structure, and the size of the upper end of the bumper is greater than that of the lower end of the bumper.

6. The structure of reducing abnormal sounds in a vehicle bumper according to claim 5, wherein the boss of the bumper is in interference fit with the mounting hole of the upper bracket of the bumper.

7. The car bumper structure for reducing abnormal sound of claim 6, wherein the bumper is made of flexible material.

Technical Field

The invention belongs to the technical field of automobile parts, and particularly relates to an automobile buffer block structure for reducing abnormal sound.

Background

In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:

the automobile buffer block is used as a part of an automobile vibration damping system component, certain shearing force needs to be borne, the traditional automobile buffer block is mainly considered to be limited, vibration damping and durability are reliable, abnormal noise of the buffer block during working is rarely considered, and the traditional automobile buffer block structure has the abnormal noise problem.

Disclosure of Invention

The invention aims to solve the technical problem of providing the automobile buffer block structure which has a simple structure, is convenient to manufacture, does not influence the reliability of the buffer block, and effectively reduces the abnormal sound risk of the buffer block.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an automobile bumper structure for reducing abnormal sound, comprising:

the buffer block upper bracket is provided with a mounting hole;

the first end of the buffer block is matched with the mounting hole of the upper bracket of the buffer block;

the shock absorber guide rod of the shock absorber is connected with the second end of the buffer block; the periphery of the first end of the buffer block is provided with a series of bosses, and the buffer block is matched with the mounting hole of the upper support of the buffer block through the bosses.

The buffer block further comprises a reinforcing ring, and the reinforcing ring is sleeved near the middle of the buffer block.

An arc-shaped groove is formed in the middle of the buffer block, and the reinforcing ring is matched with the arc-shaped groove.

And the arc-shaped groove is provided with anti-friction stripes.

The buffer block is of a conical structure, and the size of the upper end of the buffer block is larger than that of the lower end of the buffer block.

And the boss of the buffer block is in interference fit with the mounting hole of the upper bracket of the buffer block.

The buffer block is made of flexible materials.

One of the technical scheme has the advantages or beneficial effects of simple structure, convenience in manufacturing, no influence on the reliability of the buffer block, and effective reduction of the abnormal sound risk of the buffer block.

Drawings

Fig. 1 is a schematic structural diagram of an automobile bumper structure for reducing abnormal sound according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the bumper block structure of the vehicle of FIG. 1;

FIG. 3 is a schematic structural diagram of the bumper block structure of the vehicle of FIG. 1;

the labels in the above figures are: 1. buffer block upper bracket, 2, boss, 3, buffer block, 4, antifriction stripe, 5, beaded finish, 6, shock absorber guide arm, 7, shock absorber.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, an automobile bumper structure for reducing abnormal noise includes:

the buffer block upper bracket is provided with a mounting hole;

the first end of the buffer block is matched with the mounting hole of the upper bracket of the buffer block;

the shock absorber guide rod of the shock absorber is connected with the second end of the buffer block; the periphery of the first end of the buffer block is provided with a series of bosses, and the buffer block is matched with the mounting hole of the upper bracket of the buffer block through the bosses.

The buffer block further comprises a reinforcing ring, and the reinforcing ring is sleeved near the middle of the buffer block.

An arc-shaped groove is formed near the middle of the buffer block, and the reinforcing ring is matched with the arc-shaped groove. The arc-shaped groove is provided with anti-friction stripes. At the lower extreme of buffer block, the installation face of buffer block and beaded finish, the buffer block designs into waist shape structure, reduce the area of contact of buffer block and beaded finish, and at the contact site of buffer block and beaded finish, increase the stripe and handle, increase the coefficient of friction between buffer block and the beaded finish, increase the frictional force between buffer block and the beaded finish, reduce both relative gliding risks, play the risk that reduces buffer block and beaded finish friction abnormal sound, control the abnormal sound of buffer block within the scope that the passenger can accept.

The buffer block is of a conical structure, and the size of the upper end of the buffer block is larger than that of the lower end of the buffer block. The whole buffer block body is arranged in a conical shape, the lower end matched with the collision block is small, and the upper end matched with the base is large. The periphery of the upper end of the buffer block is additionally provided with a circle of small bosses, so that the buffer block can be fixed in an upper mounting bracket of the rear shock absorber, the original large area of the buffer block is contacted with the upper bracket, the boss is contacted with the bracket, the contact area of the buffer block and the bracket is reduced, and when the buffer block and the upper bracket are relatively displaced, the friction noise between the buffer block and the bracket is reduced; the height of the boss is properly designed, so that the pressure between the boss of the buffer block and the upper bracket can be increased, the friction force between the boss of the buffer block and the upper bracket can be increased, the risk of relative sliding between the buffer block and the bracket is reduced, the lower end of the buffer block is designed into a waist-shaped structure, the contact area between the buffer block and the reinforcing ring is reduced, the abnormal sound noise generated when the buffer block and the reinforcing ring move relatively can be reduced, and the anti-friction stripes are added at the contact part of the buffer block and the reinforcing ring; the friction coefficient between buffer block and the reinforcing ring is increased, the friction force required by the relative movement of the buffer block and the reinforcing ring is increased, the risk of relative sliding between the buffer block and the reinforcing ring is reduced, and the risk of generating friction noise due to relative sliding between the buffer block and the reinforcing ring is reduced.

The boss of the buffer block is in interference fit with the mounting hole of the upper bracket of the buffer block. The buffer block is made of flexible materials. When the automobile jolts up and down, the buffer block is extruded and deformed up and down between the upper support and the shock absorber, and the boss of the buffer block slides relative to the upper support under the action of the gravity of the automobile. The sliding is generated, and due to the increase of the friction force and the reduction of the area of relative contact, the abnormal sound generated by the sliding is within the acceptable range of the passengers; in a similar way, the buffer block is extruded to slide relative to the reinforcing ring, the stripes on the buffer block increase the relative sliding friction force between the buffer block and the reinforcing ring, the waist-shaped design of the buffer block also reduces the contact area between the buffer block and the reinforcing ring, the friction abnormal sound between the buffer block and the reinforcing ring is reduced, and the abnormal sound is controlled within the acceptable range of passengers

After adopting foretell structure, increase the boss at buffer block and upper bracket contact site, reduce the area of contact of buffer block and upper bracket, and the height of rational design boss, under the condition of guaranteeing the normal installation of buffer block, packing force between support and the buffer block has been increased, frictional force between buffer block and the upper bracket is increasing, when reducing the relative movement displacement of buffer block and upper bracket, the area of taking place the abnormal sound has been reduced, reduce the friction abnormal sound risk between support and the buffer block, moreover, the steam generator is simple in structure, convenient for manufacture, the reliability of buffer block is not influenced, and the abnormal sound risk of buffer block has been effectively reduced.

The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.