Air spring bearing for shock absorber

Abstract

The utility model belongs to the technical field of air bearings, and particularly relates to an air spring bearing for a shock absorber, which comprises a shaft sleeve, the shaft sleeve comprises an air inlet pipe, an air outlet pipe and a diversion groove, a spring piece is arranged in an inner cavity of the shaft sleeve, a gasket is arranged in the middle of the spring piece, a shaft core is arranged in the middle of the gasket, and dustproof plates are arranged on two sides of the shaft sleeve. A threaded hole is formed in the dustproof plate, a bolt is spirally arranged in the threaded hole, an anti-falling cover is arranged on the dustproof plate, and a mounting plate and a sealing ring are arranged on the anti-falling cover. The two arc-shaped spring pieces are arranged on the inner ring face of the shaft sleeve, an original single annular gasket is changed into the two arc-shaped gaskets, due to the fact that the two ends of each gasket are turned outwards, the spring pieces can be wrapped on the inner side face of the shaft sleeve through the gaskets, then the shaft core is installed on the inner side faces of the gaskets, and the shaft core is installed on the shaft sleeve. When the shaft sleeve is not filled with gas, the gasket can be extruded towards the inner side, so that the inner side face of the gasket is tightly attached to the shaft core, and no gap exists.

Description

Technical Field

[0001] The utility model relates to the technical field of air bearings, in particular to an air spring bearing for a shock absorber. Background Art

[0002] Air bearing is a special sliding bearing with the advantages of low friction, high precision, high speed performance, no lubrication and no pollution. It is widely used in many fields. It uses gas, usually air, as a lubricant. Compared with traditional bearings that use oil as a lubricant, air bearings have many unique advantages.

[0003] Existing air bearings are mostly composed of a bearing body, an air inlet, an air outlet, a regulating valve, and a gasket. When compressed air flows into the air inlet, a high-pressure area is formed inside the bearing body, which pushes up the thin film gasket inside the bearing body, so that the parts are suspended above the compressed air. However, for this type of bearing that simply uses a gasket as a carrier between the shaft and the bearing body, when no gas is filled inside, one side of the shaft will contact the gasket, but there will be a gap on the other side, which will cause the shaft to be unstable when there is no gas in the bearing.

[0004] In order to solve the above problems, the present application proposes an air spring bearing for a shock absorber. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an air spring bearing for a shock absorber, including a sleeve, the sleeve including an air inlet pipe, an air outlet pipe and a diverter groove, a spring sheet is movably provided in the inner cavity of the sleeve, a gasket is movably provided in the middle of the spring sheet, a shaft core is movably provided in the middle of the gasket, dustproof plates are fixedly provided on both sides of the sleeve, threaded holes are opened on the dustproof plates, bolts are spirally provided in the threaded holes, an anti-slip cover is fixedly provided on the dustproof plate, and a mounting plate and a sealing ring are fixedly provided on the anti-slip cover.

[0006] Preferably, the spring sheet, gasket and shaft core are all movably connected in the middle of the sleeve. When gas is injected into the sleeve, the spring sheet and gasket are fixedly connected to the inner ring of the sleeve, and the shaft core is rotatably connected in the middle of the gasket. When the shaft core and the gasket are not in contact and there is no gas in the sleeve, the spring sheet squeezes the shaft core inward, and the inner ring surface of the shaft core and the outer surface of the shaft core are fixedly connected.

[0007] Preferably, the dustproof plate is movably connected to both sides of the shaft sleeve, threaded holes are provided on the dustproof plate and the shaft sleeve, the bolts are spirally connected to the shaft sleeve and the dustproof plate, and the shaft core is located in the middle of the dustproof plate.

[0008] Preferably, the anti-drop cover is movably connected to the dustproof plate, the mounting plate is fixedly connected to the side of the anti-drop cover, the mounting plate is also provided with threaded holes, and the mounting plate is spirally connected with bolts.

[0009] Preferably, one side of the sealing ring is fixedly connected to the inner wall of the anti-drop cover, and the other side of the sealing ring is tightly fitted to the shaft core.

[0010] Preferably, the diverter groove is opened inside the sleeve, and the openings at both ends of the diverter groove are located on the left and right inner walls of the sleeve. The air intake pipe is fixedly connected in the middle of the diverter groove, and the distances from the air intake pipe to both ends of the diverter groove are equal.

[0011] Preferably, the spring sheet and the gasket are arc-shaped.

[0012] The above technical solution of the utility model has the following beneficial technical effects:

[0013] The utility model arranges two arc-shaped spring sheets on the inner ring surface of the shaft sleeve, and then changes the original single annular gasket into two arc-shaped gaskets. Since the two ends of the gasket are turned outward, the gasket can wrap the spring sheet on the inner side surface of the shaft sleeve, and then the shaft core is installed on the inner side surface of the gasket. When the shaft sleeve is not filled with gas, the gasket will squeeze the gasket inward, so that the inner side surface of the gasket and the shaft core are closely fitted, so that when the shaft sleeve is not running, there will be no gap between the shaft core and the gasket, which ensures that the shaft core can be stably located in the shaft sleeve, and the device is increased. stability; when gas is poured into the sleeve, the gas will enter the sleeve from both sides through the diverter groove. Since the distance from the air inlet pipe to both ends of the diverter groove is equal, the gas will enter the sleeve from both sides at the same time, and then reach the inner side of the gasket evenly. Due to the obstruction of the gasket and the sealing ring, the gas will not enter the position of the spring sheet, and no air leakage will occur. At this time, the air pressure will squeeze the gasket outward, thereby compressing the spring sheet, so that the inner side of the gasket will not contact the shaft core, thereby making the rotation of the shaft core achieve low friction, high precision and pollution-free effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front sectional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the side sectional structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the exploded structure of the utility model.

[0018] Reference numerals:

[0019] 1. Bushing; 101. Air inlet pipe; 102. Air outlet pipe; 103. Diverter slot; 2. Spring sheet; 3. Gasket; 4. Shaft core; 5. Dustproof plate; 501. Threaded hole; 6. Anti-drop cover; 601. Mounting plate; 602. Sealing ring; 7. Bolt. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0021] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0022] An air spring bearing for a shock absorber provided by some embodiments of the utility model will be described below in conjunction with the accompanying drawings.

[0023] Embodiment 1:

[0024] Combination Figure 1-4As shown, the utility model provides an air spring bearing for a shock absorber, comprising a sleeve 1, the sleeve 1 comprising an air inlet pipe 101, an air outlet pipe 102 and a diverter groove 103, a spring sheet 2 is movably provided in the inner cavity of the sleeve 1, a gasket 3 is movably provided in the middle of the spring sheet 2, a shaft core 4 is movably provided in the middle of the gasket 3, dustproof plates 5 are fixedly provided on both sides of the sleeve 1, a threaded hole 501 is opened on the dustproof plate 5, a bolt 7 is spirally provided in the threaded hole 501, The dustproof plate 5 is fixedly provided with an anti-slip cover 6, and the anti-slip cover 6 is fixedly provided with a mounting plate 601 and a sealing ring 602. The spring sheet 2, gasket 3 and shaft core 4 are all movably connected in the middle of the sleeve 1. When gas is poured into the sleeve 1, the spring sheet 2 and gasket 3 are fixedly connected to the inner ring of the sleeve 1, and the shaft core 4 is rotatably connected in the middle of the gasket 3. The shaft core 4 and the gasket 3 are not in contact. When there is no gas in the sleeve 1, the spring sheet 2 squeezes the shaft core 4 inward, and the shaft core The inner ring surface of 4 is fixedly connected to the outer surface of the shaft core 4, the dustproof plate 5 is movably connected to both sides of the shaft sleeve 1, and the dustproof plate 5 and the shaft sleeve 1 are both provided with threaded holes 501, the bolt 7 is spirally connected to the shaft sleeve 1 and the dustproof plate 5, the shaft core 4 is located in the middle of the dustproof plate 5, the anti-slip cover 6 is movably connected to the dustproof plate 5, the mounting plate 601 is fixedly connected to the side of the anti-slip cover 6, and the mounting plate 601 is also provided with threaded holes 501, the mounting plate 601 The upper spiral is connected with a bolt 7, one side of the sealing ring 602 is fixedly connected to the inner wall of the anti-drop cover 6, and the other side of the sealing ring 602 is tightly fitted with the shaft core 4, the diverter groove 103 is opened inside the sleeve 1, and the openings at both ends of the diverter groove 103 are located on the left and right inner walls of the sleeve 1, the intake pipe 101 is fixedly connected in the middle of the diverter groove 103, and the distances from the intake pipe 101 to the two ends of the diverter groove 103 are equal, and the shape of the spring sheet 2 and the gasket 3 is arc-shaped.

[0025] Specifically, a spring sheet 2 is movably provided on the inner side surface of the sleeve 1, and a gasket 3 is movably provided on the inner side surface of the spring sheet 2. Since the two sides of the gasket 3 are turned outward, so that the two ends of the gasket 3 can contact the inner side surface of the sleeve 1, while the spring sheet 2 is fixed to the inner side surface of the sleeve 1, it can also prevent the gas from reaching the position of the spring sheet 2. A shaft core 4 is movably provided on the inner side surface of the gasket 3. When gas is poured into the sleeve 1, the gas will squeeze the gasket 3 toward the spring sheet 2, so that the inner side surface of the gasket 3 and the shaft core 4 are not in contact, so that the shaft core 4 can achieve low friction, high precision and no friction when rotating. The effect of pollution is that when there is no gas in the sleeve 1, the spring sheet 2 will squeeze the gasket 3 towards the shaft core 4, so that the gasket 3 contacts the shaft core 4. Due to the elastic potential energy of the spring sheet 2, the shaft core 4 will be fixed on the inner side of the gasket 3, so that the shaft core 4 is more stable when the sleeve 1 is not in operation. A diverter groove 103 is opened on the sleeve 1, and an intake pipe 101 is fixedly connected in the middle of the diverter groove 103, and the distance from the intake pipe 101 to the two ends of the diverter groove 103 is equal, so that the gas can enter the sleeve 1 from both ends of the diverter groove 103 at the same time, thereby making the gas entry more The shaft sleeve 1 is provided with a plurality of dustproof plates 5, and the dustproof plates 5 and the shaft sleeve 1 are provided with threaded holes 501. Bolts 7 are spirally connected in the threaded holes 501, so that the bolts 7 can fix the dustproof plates 5 on both sides of the shaft sleeve 1, thereby sealing the spring sheet 2 and the gasket 3 in the shaft sleeve 1, and preventing dust and impurities from entering the shaft sleeve 1 and affecting the rotation of the shaft core 4. The dustproof plates 5 are provided with a plurality of dustproof plates 5, and the dustproof plates 5 and the shaft sleeve 1 are provided with threaded holes 501. Bolts 7 are spirally connected in the threaded holes 501, so that the bolts 7 can fix the dustproof plates 5 on both sides of the shaft sleeve 1, thereby sealing the spring sheet 2 and the gasket 3 in the shaft sleeve 1, and preventing dust and impurities from entering the shaft sleeve 1 and affecting the rotation of the shaft core 4. The anti-slip cover 6 has four mounting plates 601 fixedly welded on the side of the anti-slip cover 6, and threaded holes 501 are also provided on the mounting plates 601 so that the bolts 7 can fix the anti-slip cover 6 and the dustproof plate 5 together, and the shaft core 4 is located in the middle of the anti-slip cover 6 so that the anti-slip cover 6 can prevent the shaft core 4 from escaping from the inner cavity of the sleeve 1, and a sealing ring 602 is fixedly bonded on the inner side surface of the anti-slip cover 6, and the other side of the sealing ring 602 is tightly fitted with the side surface of the shaft core 4, so that the sealing ring 602 can prevent the degassing from leaking from between the shaft core 4 and the gasket 3, thereby making the operation of the device more stable.

[0026] The working principle and use process of the utility model are as follows: first, open the valve on the air inlet pipe 101 to introduce the gas into the diverter groove 103 through the air inlet pipe 101, and then the gas will enter the shaft sleeve 1 from both ends of the diverter groove 103 at the same time, and reach the position between the gasket 3 and the shaft core 4. At this time, the gas will squeeze the gasket 3 toward the spring sheet 2, and the spring sheet 2 will begin to compress so that the gasket 3 and the shaft core 4 are not in contact. Then the shaft core 4 can start to rotate, achieving the effect of low friction, high precision and pollution-free. After use, open the valve on the air outlet pipe 102 to release the gas in the shaft sleeve 1. At this time, the spring sheet 2 returns to its original shape, and squeezes the gasket 3 toward the shaft core 4, so that the gasket 3 and the shaft core 4 are in contact. Due to the elastic potential energy of the spring sheet 2, the shaft core 4 is fixed on the inner side of the gasket 3, making the shaft core 4 more stable, so that the shaft core 4 can be in a stable state whether there is gas or no gas in the shaft sleeve 1, thereby making the device run more accurately.

[0027] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. An air spring bearing for a shock absorber, comprising a sleeve (1), characterized in that: The shaft sleeve (1) comprises an air inlet pipe (101), an air outlet pipe (102) and a diverter groove (103); a spring sheet (2) is movably provided in the inner cavity of the shaft sleeve (1); a gasket (3) is movably provided in the middle of the spring sheet (2); a shaft core (4) is movably provided in the middle of the gasket (3); dustproof plates (5) are fixedly provided on both sides of the shaft sleeve (1); a threaded hole (501) is provided on the dustproof plate (5); a bolt (7) is spirally provided in the threaded hole (501); an anti-slip cover (6) is fixedly provided on the dustproof plate (5); and a mounting plate (601) and a sealing ring (602) are fixedly provided on the anti-slip cover (6).

2. The air spring bearing for a shock absorber according to claim 1, characterized in that: The spring sheet (2), gasket (3) and shaft core (4) are all movably connected in the middle of the shaft sleeve (1); when gas is injected into the shaft sleeve (1), the spring sheet (2) and gasket (3) are fixedly connected to the inner ring of the shaft sleeve (1); the shaft core (4) is rotatably connected in the middle of the gasket (3); the shaft core (4) and gasket (3) are not in contact; when there is no gas in the shaft sleeve (1), the spring sheet (2) presses the shaft core (4) inward; the inner ring surface of the shaft core (4) and the outer surface of the shaft core (4) are fixedly connected.

3. The air spring bearing for a shock absorber according to claim 1, characterized in that: The dustproof plate (5) is movably connected to both sides of the shaft sleeve (1), threaded holes (501) are provided on the dustproof plate (5) and the shaft sleeve (1), the bolt (7) is screwed to the shaft sleeve (1) and the dustproof plate (5), and the shaft core (4) is located in the middle of the dustproof plate (5).

4. The air spring bearing for a shock absorber according to claim 1, characterized in that: The anti-drop cover (6) is movably connected to the dustproof plate (5), and the mounting plate (601) is fixedly connected to the side of the anti-drop cover (6). The mounting plate (601) is also provided with a threaded hole (501), and the mounting plate (601) is spirally connected with a bolt (7).

5. The air spring bearing for a shock absorber according to claim 1, characterized in that: One side of the sealing ring (602) is fixedly connected to the inner wall of the anti-drop cover (6), and the other side of the sealing ring (602) is tightly fitted to the shaft core (4).

6. The air spring bearing for a shock absorber according to claim 1, characterized in that: The diverter groove (103) is opened inside the shaft sleeve (1), and the openings at both ends of the diverter groove (103) are located on the left and right inner walls of the shaft sleeve (1). The air intake pipe (101) is fixedly connected in the middle of the diverter groove (103), and the distances from the air intake pipe (101) to the two ends of the diverter groove (103) are equal.

7. The air spring bearing for a shock absorber according to claim 1, characterized in that: The spring sheet (2) and the gasket (3) are in arc shape.

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