Air spring vibration isolator forming protection mechanism

Abstract

The utility model discloses an air spring vibration isolator forming protection mechanism which comprises a bearing column upper plate, a bearing column body used for fixing the bearing column upper plate is arranged at the bottom of the bearing column upper plate, an air cylinder body is arranged on the outer wall of the bearing column body, and a stroke protection mechanism is arranged in the air cylinder body. The stroke protection mechanism comprises a welded corrugated pipe upper flange, a welded corrugated pipe body is arranged at the bottom of the welded corrugated pipe upper flange, a guide column is arranged at the bottom of the welded corrugated pipe upper flange, an upper limiter is arranged on the outer wall of the guide column, and a bearing column lower plate is arranged on the outer wall of the guide column and located at the bottom of the welded corrugated pipe body. By means of the structural design of the stroke protection mechanism, the limiting stoppers are arranged on the outer walls of the guide columns to prevent the situation that the performance of the welded corrugated pipe body is damaged when the welded corrugated pipe body bears too heavy pressure and is excessively stretched or compressed, and the four guide columns are arranged on the edge of the bearing column lower plate.

Description

Technical Field

[0001] The utility model relates to the field of air spring vibration isolators, in particular to a protective mechanism formed by an air spring vibration isolator. Background Art

[0002] Air spring is a cord-reinforced rubber bag filled with compressed air. It uses the compressibility of gas to act as a spring. It is a vibration-damping rubber product. There are long pillow type, gourd type and diaphragm type. Compared with metal springs, it has the advantages of small mass, good comfort, fatigue resistance and long service life. It also has shock absorption and noise reduction effects. Air bags are widely used in various machines such as automobiles, trains and punching machines.

[0003] Traditional air spring isolators are mainly made of chloroprene rubber and natural rubber. Rubber has a short service life, is prone to aging, and is difficult to apply to extremely harsh working conditions, such as high and low temperatures, humidity, and corrosive environments. Therefore, it is necessary to design an air spring isolator to form a protective mechanism to solve this problem. Utility Model Content

[0004] The utility model aims to provide an air spring vibration isolator to form a protection mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air spring vibration isolator forms a protection mechanism, including a supporting column upper plate, a supporting column body for fixing the supporting column upper plate is arranged at the bottom of the supporting column upper plate, a cylinder body is arranged on the outer wall of the supporting column body, a stroke protection mechanism is arranged inside the cylinder body, the stroke protection mechanism includes a welded bellows upper flange, a welded bellows body is arranged at the bottom of the welded bellows upper flange, a guide column is arranged at the bottom of the welded bellows upper flange, an upper limiter is arranged on the outer wall of the guide column, a supporting column lower plate is arranged on the outer wall of the guide column and located at the bottom of the welded bellows body, and a lower limiter is arranged on the outer wall of the guide column and located at the bottom of the supporting column lower plate.

[0006] Preferably, a first flange hole is provided at the bottom of the upper flange of the welded bellows, a middle portion of the flange hole and a top portion of the guide column are slidably interlaced and connected, and the upper flange of the welded bellows is arranged inside the side of the cylinder body.

[0007] Preferably, a welded bellows lower flange is provided on the outer wall of the guide column and located on the top of the lower plate of the receiving column.

[0008] Preferably, a second flange hole is provided on the outer wall of the lower flange of the welded bellows, and a middle portion of the second flange hole is slidably and interlacedly connected with the outer wall of the guide column.

[0009] Preferably, a mounting hole is formed in the middle of the lower plate of the receiving column, and the middle of the mounting hole is slidably and interlacedly connected with the outer wall of the guide column.

[0010] Preferably, the outer wall of the receiving column body and the middle part of the welding bellows body are connected in an interpenetrating manner, and the outer wall of the receiving column body and the middle part of the cylinder body are connected in a sliding interpenetrating manner.

[0011] Preferably, the outer wall of the cylinder body is provided with cylinder inlet and outlet holes for air to enter and exit the cylinder body.

[0012] Preferably, both ends of the guide column are slidably and interlacedly connected with the inner wall of the cylinder body.

[0013] Technical effects and advantages of the utility model:

[0014] The utility model utilizes the structural design of the stroke protection mechanism, and a limiter is arranged on the outer wall of the guide column to prevent excessive pressure. Excessive stretching or compression of the welding bellows body will damage its performance. Four guide columns are arranged on the edge of the lower plate of the receiving column. The diameter of the guide column can be smaller than the diameter of the mounting hole to facilitate a small deviation of the welding bellows body. Reducing the diameter of the guide column or increasing the diameter of the mounting hole can increase the deviation capacity of the welding bellows body in the x and y axis directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0016] Figure 2 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0017] Figure 3 For this utility model Figure 2 Enlarged structural diagram at B in the middle.

[0018] In the figure: 1. Upper plate of the receiving column; 2. The receiving column body; 3. The upper flange of the welded bellows; 4. The body of the welded bellows; 5. The guide column; 6. The upper limiter; 7. The lower flange of the welded bellows; 8. The lower plate of the receiving column; 9. The lower limiter; 10. The air inlet and outlet holes of the cylinder; 11. The body of the cylinder. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides Figure 1-3 An air spring vibration isolator shown forms a protection mechanism, including a supporting column upper plate 1, a supporting column body 2 for fixing the supporting column upper plate 1 is arranged at the bottom of the supporting column upper plate 1, a cylinder body 11 is arranged on the outer wall of the supporting column body 2, a stroke protection mechanism is arranged inside the cylinder body 11, and the stroke protection mechanism includes a welded bellows upper flange 3, and a welded bellows body 4 is arranged at the bottom of the welded bellows upper flange 3.

[0021] It should be noted that, when the cylinder is not inflated and the top receiving plate is not loaded, the deformation of the welding bellows body 4 should be +15%, and the lower flange 7 of the welding bellows is at the top of the lower limiter 9. During operation, when the cylinder is inflated and the top is not loaded, the deformation of the welding bellows body 4 should be -50%, and the stroke can reach 75% of the length of the welding bellows (-60% to +15%). By changing the air pressure in the cylinder body 11, the load range of the shock absorber can be changed.

[0022] Specifically, a first flange hole is opened at the bottom of the welding bellows upper flange 3 , and the middle of the flange hole is slidably connected with the top of the guide column 5 . The welding bellows upper flange 3 is arranged inside the side of the cylinder body 11 .

[0023] Specifically, a welded bellows lower flange 7 is provided on the outer wall of the guide column 5 and located on the top of the receiving column lower plate 8 .

[0024] It should be noted that four guide columns 5 are set up on the edge of the lower plate 8 of the receiving column, and a mounting hole is opened on the outer wall of the lower plate 8 of the receiving column. The diameter of the guide column 5 can be smaller than the diameter of the mounting hole to facilitate a small offset of the welding bellows body 4. Reducing the diameter of the guide column 5 or increasing the diameter of the mounting hole can increase the offset capability of the welding bellows body 4 in the x and y axis directions.

[0025] Furthermore, a second flange hole is formed on the outer wall of the lower flange 7 of the welded bellows, and a middle portion of the second flange hole is slidably interlaced with the outer wall of the guide column 5 .

[0026] It should be noted that a second flange hole is provided on the outer wall of the lower flange 7 of the welded bellows, and the second flange hole is designed to facilitate the movement of the guide column 5 .

[0027] Furthermore, a mounting hole is formed in the middle of the lower plate 8 of the receiving column, and the middle of the mounting hole and the outer wall of the guide column 5 are slidably interlaced and connected.

[0028] Furthermore, the outer wall of the receiving column body 2 and the middle part of the welding bellows body 4 are connected in an interpenetrating manner, and the outer wall of the receiving column body 2 and the middle part of the cylinder body 11 are connected in a sliding interpenetrating manner.

[0029] Furthermore, the outer wall of the cylinder body 11 is provided with cylinder inlet and outlet holes 10 for air to enter and exit the cylinder body 11 .

[0030] It should be noted that the outer wall of the cylinder body 11 is provided with cylinder inlet and outlet holes 10 , and this design is to facilitate the inflation and exhaust of the cylinder body 11 .

[0031] Furthermore, both ends of the guide column 5 are connected to the inner wall of the cylinder body 11 in a sliding and interpenetrating manner.

[0032] It should be noted that the two ends of the guide column 5 are slidably connected with the inner wall of the cylinder body 11 , and this design is for the convenience of installing the guide column 5 .

[0033] A guide column 5 is provided at the bottom of the upper flange 3 of the welding bellows, an upper limiter 6 is provided on the outer wall of the guide column 5, a receiving column lower plate 8 is provided on the outer wall of the guide column 5 and located at the bottom of the welding bellows body 4, and a lower limiter 9 is provided on the outer wall of the guide column 5 and located at the bottom of the receiving column lower plate 8.

[0034] During actual use, the outer wall of the guide column 5 is provided with an upper limiter 6 and a lower limiter 9 to prevent excessive pressure. Excessive stretching or compression of the welding bellows body 4 will damage its performance. Four guide columns 5 are set up on the edge of the receiving column lower plate 8. The diameter of the guide column 5 can be smaller than the diameter of the mounting hole to facilitate a small offset of the welding bellows body 4. Reducing the diameter of the guide column 5 or increasing the diameter of the mounting hole can increase the offset capacity of the welding bellows body 4 in the x and y axis directions.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air spring vibration isolator forming a protective mechanism, comprising a receiving column upper plate (1), a receiving column body (2) for fixing the receiving column upper plate (1) is arranged at the bottom of the receiving column upper plate (1), and a cylinder body (11) is arranged on the outer wall of the receiving column body (2), characterized in that: A stroke protection mechanism is arranged inside the cylinder body (11), and the stroke protection mechanism comprises a welded bellows upper flange (3), a welded bellows body (4) is arranged at the bottom of the welded bellows upper flange (3), a guide column (5) is arranged at the bottom of the welded bellows upper flange (3), an upper limiter (6) is arranged on the outer wall of the guide column (5), a receiving column lower plate (8) is arranged on the outer wall of the guide column (5) and located at the bottom of the welded bellows body (4), and a lower limiter (9) is arranged on the outer wall of the guide column (5) and located at the bottom of the receiving column lower plate (8).

2. The air spring isolator forming protection mechanism according to claim 1, characterized in that: A first flange hole is provided at the bottom of the welded bellows upper flange (3), the middle of the flange hole is slidably connected to the top of the guide column (5), and the welded bellows upper flange (3) is arranged inside the side of the cylinder body (11).

3. The air spring isolator forming protection mechanism according to claim 1, characterized in that: A welded bellows lower flange (7) is provided on the outer wall of the guide column (5) and located on the top of the receiving column lower plate (8).

4. The air spring isolator forming protection mechanism according to claim 3, characterized in that: A second flange hole is provided on the outer wall of the lower flange (7) of the welded bellows, and the middle portion of the second flange hole is slidably interlaced with the outer wall of the guide column (5).

5. The air spring isolator forming protection mechanism according to claim 3, characterized in that: A mounting hole is formed in the middle of the receiving column lower plate (8), and the middle of the mounting hole is slidably interlaced with the outer wall of the guide column (5).

6. The air spring isolator forming protection mechanism according to claim 1, characterized in that: The outer wall of the receiving column body (2) and the middle part of the welded bellows body (4) are connected in an interpenetrating manner, and the outer wall of the receiving column body (2) and the middle part of the cylinder body (11) are connected in a sliding interpenetrating manner.

7. The air spring isolator forming protection mechanism according to claim 1, characterized in that: The outer wall of the cylinder body (11) is provided with cylinder inlet and outlet holes (10) for air to enter and exit the cylinder body (11).

8. The air spring isolator forming protection mechanism according to claim 1, characterized in that: The two ends of the guide column (5) are connected to the inner wall of the cylinder body (11) in a sliding and interpenetrating manner.

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