Rubber damping bushing for automobile

Abstract

The utility model relates to the technical field of rubber shock-absorbing bushings, and discloses a rubber shock-absorbing bushing for an automobile, which comprises an outer sleeve and a lining pipe, a plurality of rubber bodies are fixedly arranged between the outer sleeve and the lining pipe and are distributed between the outer sleeve and the lining pipe at equal intervals, a heat dissipation mechanism is arranged on the outer sleeve, and the heat dissipation mechanism is arranged on the lining pipe. The space and the cavity between the adjacent rubber bodies are communicated through the ventilation holes, heat generated in the elastic deformation process of the rubber bodies can cause the temperature rise of air nearby the rubber bodies, the heated air flows and exchanges with normal-temperature air in the cavity, and the heated air enters the cavity from the ventilation holes and then makes contact with the heat dissipation ring, so that heat dissipation is achieved. And the heat dissipation ring is used for cooling air, and external air can also cool the heat dissipation ring, so that heat generated during working of the rubber body is quickly dissipated, and the situation that the damping effect becomes poor due to excessive temperature rise of the rubber body is avoided.

Description

Technical Field

[0001] This utility model relates to the field of rubber shock absorber bushing technology, specifically a rubber shock absorber bushing for automobiles. Background Technology

[0002] Automotive bushings are primarily used as wear-resistant components. They are easily replaced when worn. Made of wear-resistant materials, they rub against surfaces in contact with the wear-resistant material. Bushings are generally made of soft materials, allowing for some degree of friction and wear. The bushing is worn down by the surfaces it contacts, protecting those surfaces. It is replaced when the wear reaches a certain level. The lifespan and wear resistance of bushings are relative to load, temperature, and speed of movement. Automotive bushings typically consist of three parts: a metal outer shell, a middle rubber body, and an inner tube. These three parts are connected to form a complete bushing. During elastic deformation and recovery, the friction between the rubber molecules gives the middle rubber body a certain damping property, effectively attenuating vibration energy and thus reducing vibration. However, this also leads to frictional heat generation. If this heat is not dissipated in time, it can cause changes in the rubber's elastic coefficient, resulting in a decrease in vibration damping effect. Utility Model Content

[0003] The purpose of this invention is to provide a rubber shock absorber bushing for automobiles to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a rubber shock absorber bushing for automobiles, comprising an outer tube and an inner tube, wherein a rubber body is fixedly installed between the outer tube and the inner tube, and multiple rubber bodies are provided and evenly distributed between the outer tube and the inner tube, and a heat dissipation mechanism is provided on the outer tube.

[0005] The heat dissipation mechanism includes a heat dissipation ring and a ventilation hole. The heat dissipation ring is fixedly sleeved on the outer sleeve. The ventilation hole is opened on the outer wall of the outer sleeve. A cavity is opened on the inner side of the heat dissipation ring. The ventilation hole connects the interior of the outer sleeve and the cavity. Multiple ventilation holes are provided, and the ventilation holes are located between two rubber bodies.

[0006] An end rubber component is provided between the ends of the outer tube and the inner liner tube.

[0007] Furthermore, the outer sleeve includes an end tube and an intermediate tube. The end tube is fixedly installed at the top and bottom of the intermediate tube. The end rubber component is located at the end tube. The ventilation hole is opened at the intermediate tube, and the rubber body is fixedly connected to the inner wall of the intermediate tube.

[0008] Furthermore, a sealing ring is fixedly installed at the connection between the end tube and the intermediate tube.

[0009] Furthermore, the end rubber component includes a rubber ring and a heat-conducting ring. The rubber ring is fixedly installed on the inner wall of the end of the outer tube and the inner liner tube, and the heat-conducting ring is fixedly installed on the inner wall of the outer tube.

[0010] Furthermore, a groove is formed on the outer wall of the rubber ring facing the heat-conducting ring, and a heat-conducting column is inserted into the groove. The heat-conducting column movably passes through the rubber body and the heat-conducting ring, and the top and bottom ends of the heat-conducting column are respectively inserted into the upper and lower grooves.

[0011] Furthermore, multiple heat-conducting columns and grooves are provided and are arranged in a circumferential array around the axis of the inner liner tube, with a gap between the end of the heat-conducting column and the inner wall of the groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By using ventilation holes to connect the space and cavity between adjacent rubber bodies, the heat generated during the elastic deformation of the rubber body will cause the air near it to heat up. The heated air flows and exchanges with the room temperature air in the cavity. The heated air enters the cavity through the ventilation holes and then comes into contact with the heat dissipation ring. The heat dissipation ring cools the air, and the outside air can also cool the heat dissipation ring, so as to achieve rapid heat dissipation of the heat generated by the rubber body during operation, thereby avoiding the damping effect from deterioration due to excessive heating of the rubber body;

[0014] 2. At the same time, because the heat dissipation ring completely covers the ventilation holes, external dust and other particles cannot enter the outer tube;

[0015] 3. Using heat-conducting columns as a medium for rapid heat transfer, since the deformation amplitude of the rubber body and rubber ring at different locations is different, the heat generated by the rubber body and rubber ring at different locations is also different. Heat-conducting columns can be used to quickly and evenly transfer heat, thereby improving the heat exchange effect between the air and the heated object, and thus improving the cooling effect on the rubber body and rubber ring. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A structural schematic diagram of the front sectional view;

[0018] Figure 3 This is a schematic diagram of the outer sleeve and inner liner of this utility model;

[0019] Figure 4 This utility model Figure 3 Exploded view of the structure;

[0020] Figure 5 This is a structural schematic diagram of the right-side cross-sectional view of the rubber ring and rubber body of this utility model.

[0021] In the diagram: 1. Outer tube; 101. End tube; 102. Middle tube; 2. Inner liner tube; 3. Rubber body; 4. Heat dissipation mechanism; 401. Heat dissipation ring; 402. Ventilation hole; 403. Cavity; 5. Sealing ring; 6. End rubber parts; 601. Rubber ring; 602. Heat-conducting ring; 7. Heat-conducting column; 8. Groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1-5 This utility model provides a technical solution: a rubber shock absorber bushing for automobiles, including an outer tube 1 and an inner tube 2, with a rubber body 3 fixedly installed between the outer tube 1 and the inner tube 2. Multiple rubber bodies 3 are provided and are evenly distributed between the outer tube 1 and the inner tube 2. A heat dissipation mechanism 4 is provided on the outer tube 1.

[0024] The heat dissipation mechanism 4 includes a heat dissipation ring 401 and ventilation holes 402. The heat dissipation ring 401 is fixedly sleeved on the outer sleeve 1. The ventilation holes 402 are opened on the outer wall of the outer sleeve 1. A cavity 403 is opened on the inner side of the heat dissipation ring 401. The ventilation holes 402 connect the interior of the outer sleeve 1 and the cavity 403. Multiple ventilation holes 402 are provided, and the ventilation holes 402 are located between pairs of rubber bodies 3. By setting multiple equally spaced rubber bodies 3 as a buffer and shock absorption structure between the outer sleeve 1 and the inner liner tube 2, the ventilation holes 402 connect the space between adjacent rubber bodies 3 and the cavity 403, and the rubber bodies 3 elastically deform... The heat generated during the transformation process causes the surrounding air to heat up. The heated air flows and exchanges with the room temperature air in the cavity 403. The heated air enters the cavity 403 through the ventilation hole 402 and then comes into contact with the heat dissipation ring 401. The heat dissipation ring 401 cools the air, and the outside air can also cool the heat dissipation ring 401, so as to achieve rapid heat dissipation of the heat generated by the rubber body 3 during operation. This avoids the damping effect from deterioration due to excessive heating of the rubber body 3. At the same time, because the heat dissipation ring 401 completely covers the ventilation hole 402, external dust and other particles cannot enter the outer tube 1.

[0025] An end rubber component 6 is provided between the ends of the outer tube 1 and the inner tube 2. A separate end rubber component 6 is provided between the ends of the outer tube 1 and the inner tube 2 so that the area with the largest deformation amplitude uses thicker rubber as a buffer.

[0026] The outer sleeve 1 includes an end tube 101 and an intermediate tube 102. The end tube 101 is fixedly installed at the top and bottom of the intermediate tube 102. The end rubber component 6 is located at the end tube 101. The ventilation hole 402 is opened at the intermediate tube 102. The rubber body 3 is fixedly connected to the inner wall of the intermediate tube 102. The entire outer sleeve 1 is divided into three sections, which makes it more convenient to install the rubber body 3 and the end rubber component 6. That is, the rubber body 3 and the heat dissipation mechanism 4 can be installed separately, and then the end rubber component 6 can be installed.

[0027] A sealing ring 5 is fixedly installed at the connection between the end tube 101 and the middle tube 102 to ensure the sealing effect at the joint between the end tube 101 and the middle tube 102.

[0028] The end rubber component 6 includes a rubber ring 601 and a heat-conducting ring 602. The rubber ring 601 is fixedly installed on the inner wall of the end of the outer sleeve 1 and the inner liner 2. The heat-conducting ring 602 is fixedly installed on the inner wall of the outer sleeve 1. The rubber ring 601 is set as a thicker rubber at the end of the outer sleeve 1 and the inner liner 2 to play a buffering and shock-absorbing role. The heat-conducting ring 602 is set to dissipate the heat generated by the deformation of the rubber ring 601.

[0029] A groove 8 is formed on the outer wall of the rubber ring 601 facing the heat-conducting ring 602. A heat-conducting column 7 is inserted into the groove 8. The heat-conducting column 7 moves through the rubber body 3 and the heat-conducting ring 602. The top and bottom ends of the heat-conducting column 7 are inserted into the upper and lower grooves 8 respectively. The heat-conducting column 7 serves as a medium for rapid heat transfer. Because the deformation amplitude of the rubber body 3 and the rubber ring 601 at different positions is different, the heat generated by the rubber body 3 and the rubber ring 601 at different positions is also different. The heat can be transferred quickly and evenly by using the heat-conducting column 7, thereby improving the heat exchange effect between the air and the heated object, and thus improving the cooling effect on the rubber body 3 and the rubber ring 601.

[0030] Multiple heat-conducting columns 7 and grooves 8 are provided and are arranged in a circumferential array around the axis of the inner liner tube 2 to transfer heat at different locations. A gap is left between the end of the heat-conducting column 7 and the inner wall of the groove 8 to prevent the rubber ring 601 from being blocked by the heat-conducting column 7 when it deforms.

[0031] Working principle: In use, the rubber body 3 is installed between the intermediate tube 102 and the inner liner tube 2. Then, the heat-conducting column 7 passes through the rubber body 3. Finally, the end rubber part 6 is placed between the end tube 101 and the inner liner tube 2. The end tube 101 and the intermediate tube 102 are welded and fixed. Then, the rubber ring 601 is fixed and installed by vulcanization. When the damping bushing is working, the rubber ring 601 and the rubber body 3 will undergo elastic deformation. Due to their internal damping characteristics, they absorb vibration and generate heat. This heat is transferred to the heat-conducting column 7 and the outside air. The heated air flows and exchanges with the room temperature air in the cavity 403. Then, it comes into contact with the heat dissipation ring 401 and uses the heat dissipation ring 401 to cool the air. The outside air can also cool the heat dissipation ring 401, realizing the rapid heat dissipation of the heat generated by the rubber body 3 and the rubber ring 601, thereby avoiding the damping effect from deterioration due to excessive heating of the rubber ring 601 and the rubber body 3.

[0032] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A rubber shock absorbing bushing for a vehicle, comprising an outer sleeve (1), an inner bushing (2), characterized in that: The outer sleeve (1), the inner lining pipe (2) are fixedly installed with rubber body (3), the rubber body (3) is provided with multiple, and equal interval distribution between outer sleeve (1), inner lining pipe (2), the outer sleeve (1) is provided with heat dissipation mechanism (4); The heat dissipation mechanism (4) includes heat dissipation ring (401), air hole (402), the heat dissipation ring (401) is fixedly covered on the outer sleeve (1), the air hole (402) is opened on the outer wall of the outer sleeve (1), the inner side of the heat dissipation ring (401) is provided with cavity (403), the air hole (402) is communicated with the inside of the outer sleeve (1) and the cavity (403), the air hole (402) is provided with multiple, and the air hole (402) is located between two rubber bodies (3). The outer sleeve (1), the inner lining pipe (2) end portion is provided with end rubber part (6).

2. A rubber bushing for a vehicle according to claim 1, characterized in that: The outer sleeve (1) includes end pipe (101), intermediate pipe (102), the end pipe (101) is fixedly installed at the top end and bottom end of the intermediate pipe (102), the end rubber part (6) is located at the end pipe (101), the air hole (402) is opened at the intermediate pipe (102), and the rubber body (3) is fixedly connected with the inner wall of the intermediate pipe (102).

3. A rubber bushing for a vehicle according to claim 2, characterized in that: The end pipe (101) and the intermediate pipe (102) are fixedly installed with sealing ring (5) at the connection.

4. A rubber bushing for an automobile according to claim 1, characterized by: The end rubber part (6) includes rubber ring (601), heat conducting ring (602), the rubber ring (601) is fixedly installed on the inner wall of the outer sleeve (1), the inner lining pipe (2) end portion, the heat conducting ring (602) is fixedly installed on the inner wall of the outer sleeve (1).

5. A rubber bushing for a vehicle according to claim 4, characterized in that: The side outer wall of the rubber ring (601) towards heat conducting ring (602) is provided with recess (8), the recess (8) is inserted with heat conducting column (7), the heat conducting column (7) is movably penetrated through rubber body (3) and heat conducting ring (602), the top end and bottom end of the heat conducting column (7) are inserted into the upper and lower recess (8) respectively.

6. A rubber bushing for a vehicle according to claim 5, characterized in that: The heat conducting column (7), recess (8) are provided with multiple, and are distributed in the circumferential array around the inner lining pipe (2) axis, and the gap is left between the end of the heat conducting column (7) and the inner wall of the recess (8).

Images