Compression-resistant rubber bushing for steel plate spring seat of engineering truck

Abstract

The utility model relates to the technical field of rubber bushings, in particular to a compression-resistant rubber bushing for a steel plate spring seat of an engineering truck, which is characterized in that the diameter of a rubber body is gradually increased from outside to inside; the outer ring wall of the rubber body is embedded in the inner ring wall of the shell, and the inner ring wall of the rubber body is embedded in the outer ring wall of the inner pipe. The inner ring wall of the shell and the outer ring wall of the inner pipe are each provided with an upper ring groove and a lower ring groove. The balls are embedded in the annular grooves in a rolling mode respectively and abut against the rubber body. The diameter of the rubber body is gradually increased from outside to inside, so that the rubber body is clamped between the shell 1 and the inner pipe, the rubber body cannot move up and down during rotation, deviation of the rubber body is avoided, and practicability is improved; and the balls are attached to the rubber body to rotate, friction force is reduced, the rubber body can rotate better, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber bushings, in particular to a compression-resistant engineering vehicle leaf spring seat rubber bushing. Background Art

[0002] The leaf spring seat in the compression-resistant engineering vehicle needs to be connected and damped by a rubber bushing. The rubber bushing relies on the rotational deformation of the rubber body to dampen shock when in use, but the rubber body is easy to slide when rotating. Therefore, a rubber bushing for the leaf spring seat of the compression-resistant engineering vehicle is proposed. Utility Model Content

[0003] The utility model aims to solve the defects and shortcomings of the prior art and to provide a compression-resistant engineering vehicle leaf spring seat rubber bushing to solve the above problems.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: it comprises an outer shell and an inner tube;

[0005] It also contains:

[0006] A rubber body, wherein the diameter of the rubber body is arranged from small to large from the outside to the inside; the outer ring wall of the rubber body is embedded in the inner ring wall of the outer shell, and the inner ring wall of the rubber body is embedded in the outer ring wall of the inner tube; two upper and lower ring grooves are provided on the inner ring wall of the outer shell and the outer ring wall of the inner tube;

[0007] Balls, the number of which is several and which are respectively rolled and embedded in the annular grooves and abut against the rubber body;

[0008] The limiting rubber block has two limiting rubber blocks, which are respectively arranged at the upper and lower parts of the rubber body. The limiting rubber block is an annular structure, and the cross section of the limiting rubber block is a "T"-shaped structure;

[0009] The fixing mechanism is two in number and is respectively arranged on the limiting rubber block and connected to the outer shell and the inner tube.

[0010] Preferably, there are gaps between the rubber body and the outer shell and the inner tube.

[0011] Preferably, the outer side of the annular groove is not arranged in contact with the ball.

[0012] Preferably, the outer wall of the limiting rubber block is an arc-shaped structure.

[0013] Preferably, the fixing mechanism comprises:

[0014] A No. 1 limiting ring, wherein the No. 1 limiting ring is sleeved on the outer side of the limiting rubber block, and the outer side of the limiting rubber block is embedded in the No. 1 limiting ring;

[0015] A No. 1 internally threaded tube, the No. 1 internally threaded tube is fixed on the inner side of the No. 1 limiting ring, and the No. 1 internally threaded tube is screwed into the housing through threads;

[0016] A second limiting ring, wherein the second limiting ring is sleeved on the inner side of the limiting rubber block, and the inner side of the limiting rubber block is embedded in the second limiting ring;

[0017] The No. 2 internally threaded pipe is fixed on the inner side of the No. 2 limiting ring and is screwed into the inner pipe through threads.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a compression-resistant engineering vehicle leaf spring seat rubber bushing, the diameter of the rubber body is arranged from small to large from the outside to the inside, so that the rubber body is stuck between the outer shell and the inner tube, and the rubber body will not move up and down when rotating, avoiding the deviation of the rubber body, thereby improving practicality; the ball fits the rubber body when rotating, reducing friction, so that the rubber body can rotate better, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a cross-sectional view of the utility model.

[0022] Figure 3 yes Figure 1 Enlarged view of part A in .

[0023] Figure 4 yes Figure 1 Enlarged view of part B in .

[0024] Description of reference numerals:

[0025] Outer shell 1, inner tube 2, rubber body 3, ring groove 4, ball 5, limiting rubber block 6, fixing mechanism 7, No. 1 limiting ring 7-1, No. 1 internal threaded tube 7-2, No. 2 limiting ring 7-3, No. 2 internal threaded tube 7-4. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings. Example

[0027] See also Figure 1-4 , this embodiment 1 comprises an outer shell 1 and an inner tube 2;

[0028] It also contains:

[0029] A rubber body 3, wherein the diameter of the rubber body 3 is arranged from small to large from the outside to the inside; the outer ring wall of the rubber body 3 is embedded in the inner ring wall of the outer shell 1, and the inner ring wall of the rubber body 3 is embedded in the outer ring wall of the inner tube 2, and there are gaps between the rubber body 3 and the outer shell 1 and the inner tube 2; two upper and lower ring grooves 4 are opened on the inner ring wall of the outer shell 1 and the outer ring wall of the inner tube 2;

[0030] The balls 5 are in multiple numbers and are respectively rolled and embedded in the annular grooves 4. The balls 5 are against the rubber body 3, and the outer side of the annular grooves 4 is not in close contact with the balls 5.

[0031] The limiting rubber block 6 is two in number and is disposed on the upper and lower sides of the rubber body 3 respectively. The limiting rubber block 6 is an annular structure, the cross section of the limiting rubber block 6 is a "T"-shaped structure, and the outer wall of the limiting rubber block 6 is an arc-shaped structure;

[0032] The fixing mechanism 7 includes two fixing mechanisms 7, which are respectively arranged on the limiting rubber block 6 and connected to the outer shell 1 and the inner tube 2; the fixing mechanisms 7 include:

[0033] A first limiting ring 7-1, wherein the first limiting ring 7-1 is sleeved on the outer side of the limiting rubber block 6, and the outer side of the limiting rubber block 6 is embedded in the first limiting ring 7-1;

[0034] A No. 1 internally threaded tube 7-2, wherein the No. 1 internally threaded tube 7-2 is fixed to the inner side of the No. 1 limiting ring 7-1, and the No. 1 internally threaded tube 7-2 is screwed into the housing 1 through threads;

[0035] The second limiting ring 7-3 is sleeved on the inner side of the limiting rubber block 6, and the inner side of the limiting rubber block 6 is embedded in the second limiting ring 7-3;

[0036] The No. 2 internal threaded tube 7-4 is fixed on the inner side of the No. 2 limiting ring 7-3, and the No. 2 internal threaded tube 7-4 is screwed into the inner tube 2 through threads.

[0037] The working principle of this specific embodiment is as follows: after the rubber body 3 is installed between the outer shell 1 and the inner tube 2, the No. 1 internal threaded tubes 7-2 on the two No. 1 limiting rings 7-1 are respectively screwed onto the outer shell 1, so that the outer side of the limiting rubber block 6 is embedded in the No. 1 limiting ring 7-1, and the No. 2 internal threaded tubes 7-4 on the two No. 2 limiting rings 7-3 are respectively screwed onto the inner tube 2, so that the No. 1 limiting ring 7-1 and the No. 2 limiting ring 7-3 can fix the limiting rubber block 6 to the outer shell 1 and the inner tube 2;

[0038] The diameter of the rubber body 3 is arranged from small to large from the outside to the inside, the outer shell 1, the rubber body 3, and the inner tube 2 are nested in layers, the outer ring wall of the rubber body 3 is embedded in the inner ring wall of the outer shell 1, and the inner ring wall of the rubber body 3 is embedded in the outer ring wall of the inner tube 2. The rubber body 3 is stuck between the outer shell 1 and the inner tube 2, so that the rubber body 3 does not move up and down when rotating, and the rubber body 3 is prevented from being offset; when the rubber body 3 rotates, the ball 5 rotates in contact with the rubber body 3 to reduce friction, so that the rubber body 3 can rotate better, and when the rubber body 3 is deformed and extruded, the outer side of the annular groove 4 is not arranged in contact with the ball 5, so that the ball 5 has space to retreat, which does not affect the use of the rubber body 3.

[0039] After adopting the above structure, the beneficial effects of this specific implementation are:

[0040] 1. The diameter of the rubber body 3 is arranged from small to large from the outside to the inside, so that the rubber body 3 is stuck between the outer shell 1 and the inner tube 2. The rubber body 3 will not move up and down when rotating, avoiding the displacement of the rubber body 3 and improving the practicality;

[0041] 2. A ball 5 is provided, and the ball 5 rotates in contact with the rubber body 3 to reduce friction, so that the rubber body 3 can rotate better and improve practicality.

[0042] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A compression-resistant engineering vehicle leaf spring seat rubber bushing, comprising an outer shell (1) and an inner tube (2); It is characterized in that It also contains: A rubber body (3), wherein the diameter of the rubber body (3) is arranged from small to large from the outside to the inside; the outer ring wall of the rubber body (3) is embedded in the inner ring wall of the outer shell (1), and the inner ring wall of the rubber body (3) is embedded in the outer ring wall of the inner tube (2); and two upper and lower ring grooves (4) are provided on the inner ring wall of the outer shell (1) and the outer ring wall of the inner tube (2); Balls (5), the number of the balls (5) being several and respectively embedded in the annular grooves (4) for rolling, and the balls (5) being against the rubber body (3); A limiting rubber block (6), wherein the number of the limiting rubber blocks (6) is two and they are respectively arranged at the top and the bottom of the rubber body (3); the limiting rubber block (6) is an annular structure, and the cross section of the limiting rubber block (6) is a "T"-shaped structure; The fixing mechanisms (7) are two in number and are respectively arranged on the limiting rubber block (6) and connected to the outer shell (1) and the inner tube (2).

2. The compression-resistant engineering vehicle leaf spring seat rubber bushing according to claim 1, characterized in that: There are gaps between the rubber body (3) and the outer shell (1) and the inner tube (2).

3. The compression-resistant engineering vehicle leaf spring seat rubber bushing according to claim 1, characterized in that: The outer side of the annular groove (4) is not arranged in close contact with the ball (5).

4. The compression-resistant engineering vehicle leaf spring seat rubber bushing according to claim 1, characterized in that: The outer wall of the limiting rubber block (6) is an arc-shaped structure.

5. The compression-resistant engineering vehicle leaf spring seat rubber bushing according to claim 1, characterized in that: The fixing mechanism (7) comprises: A first limiting ring (7-1), wherein the first limiting ring (7-1) is sleeved on the outer side of the limiting rubber block (6), and the outer side of the limiting rubber block (6) is embedded in the first limiting ring (7-1); A No. 1 internally threaded tube (7-2), wherein the No. 1 internally threaded tube (7-2) is fixed to the inner side of the No. 1 limiting ring (7-1), and the No. 1 internally threaded tube (7-2) is screwed into the outer shell (1) via threads; A second limiting ring (7-3), wherein the second limiting ring (7-3) is sleeved on the inner side of the limiting rubber block (6), and the inner side of the limiting rubber block (6) is embedded in the second limiting ring (7-3); A No. 2 internally threaded tube (7-4), wherein the No. 2 internally threaded tube (7-4) is fixed on the inner side of the No. 2 limiting ring (7-3), and the No. 2 internally threaded tube (7-4) is screwed into the inner tube (2) via threads.

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