Large-size air floating type passive damping table

Abstract

The utility model discloses a large-size air floating type passive damping table which comprises a large-size table board, a base is arranged below the large-size table board, the bottom face of the base is connected with six detachable air cylinders, the six detachable air cylinders are connected with a six-cylinder air channel control structure, and the six-cylinder air channel control structure is used for adjusting the height of the six detachable air cylinders. After an external air source inflates an air pipe of the six-cylinder air path control structure through the breather pipe, the six detachable air cylinders are inflated and enter the inner air chamber from the outer air chamber, after the air pressure of the inner air chamber is increased, the rubber bowl deforms, the sleeve is driven to rise, and therefore the large-size table top is jacked up, and after the large-size table top floats, the sleeve is driven to rise. The three height adjusting valves are used for adjusting the height of the large-size table board, so that the large-size table board is self-balanced, the six detachable air cylinders can reduce vibration transmitted to the large-size table board, and convenience and practicability are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of shock absorption, and particularly relates to a large-size air-floating passive shock absorption platform. Background Art

[0002] Large-scale equipment will produce large or small vibrations on moving objects in various application fields. This violent shaking will have a huge impact on the performance and even operation of large-scale equipment. At present, there are two main methods for precision instrument shock absorption: using passive vibration isolation devices, using springs and dampers to isolate the impact of object vibration on the instrument; using a vibration isolation turntable based on a parallel mechanism.

[0003] The vibration isolation device using springs and dampers can only reduce external vibration interference above a certain frequency due to the limitation of its working principle, and theoretically cannot eliminate the influence of all external vibrations. Therefore, the effect of eliminating low-frequency external interference is poor; in addition, after the external vibration disappears, due to the under-damped characteristics of the spring vibration isolation system, there will be residual oscillations in the system. The vibration isolation turntable based on the parallel mechanism requires 6 or even more connecting rod mechanisms to achieve external vibration shielding of the supported object, so the control method is more complicated; in addition, due to the small driving force of the linear motor, hydraulic connecting rods are required for larger equipment, resulting in poor high-frequency vibration isolation response of the system.

[0004] Therefore, it is necessary to provide a new large-sized air-floating passive shock-absorbing platform to solve the existing problems. Utility Model Content

[0005] The utility model provides a large-size air-floating passive shock-absorbing platform, which is used to achieve a better isolation effect on external shaking and vibration.

[0006] To solve the above problems, the technical solutions provided by the present invention are as follows:

[0007] The utility model provides a large-sized air-floating passive vibration-absorbing platform, comprising a large-sized platform (1), a base (2) being arranged below the large-sized platform (1), the bottom surface of the base (2) being connected to 6 detachable cylinders, the 6 detachable cylinders being connected to a 6-cylinder air circuit control structure, and the 6-cylinder air circuit control structure being used to adjust the height of the 6 detachable cylinders;

[0008] The six detachable cylinders are a first cylinder (3), a second cylinder (4), a third cylinder (5), a fourth cylinder (6), a fifth cylinder (7) and a sixth cylinder (8); the first cylinder (3), the second cylinder (4) and the third cylinder (5) are located on one side of the bottom surface of the base (2); and the fourth cylinder (6), the fifth cylinder (7) and the sixth cylinder (8) are located on the other side of the bottom surface of the base (2);

[0009] The 6-cylinder air circuit control structure comprises a first air pipe (9-1), a second air pipe (9-2), a third air pipe (9-3), a fourth air pipe (9-4) and a fifth air pipe (9-5); the second air pipe (9-2), the third air pipe (9-3) and the fifth air pipe (9-5) are respectively connected to the first air pipe (9-1) through a joint (9-6); the fourth air pipe (9-4) is connected to the third air pipe (9-3) through a joint (9-6); the first air pipe is connected to the ventilation pipe (9-10) through a joint (9-6) and an oil-water filter pressure regulating valve (9-11);

[0010] The outer air chambers of the first air cylinder (3) and the third air cylinder (5) are respectively connected to the two ends of the first air pipe (9-1) through a height regulating valve (9-9); the outer air chamber of the second air pipe (9-2) is connected to the end of the second air pipe (9-2); the outer air chamber of the fourth air cylinder (6) is connected to the end of the fourth air pipe (9-4) through a height regulating valve (9-9); the outer air chamber of the fifth air cylinder (7) is connected to the end of the third air pipe (9-3); and the outer air chamber of the sixth air cylinder (8) is connected to the end of the fifth air pipe (9-5).

[0011] According to an optional embodiment of the utility model, a speed regulating valve (9-7) and a switch valve (9-8) are provided on the pipe sections of the first air pipe (9-1), the second air pipe (9-2), the third air pipe (9-3), the fourth air pipe (9-4) and the fifth air pipe (9-5) close to the cylinder.

[0012] According to an optional embodiment of the utility model, the first cylinder (3), the second cylinder (4), the third cylinder (5), the fourth cylinder (6), the fifth cylinder (7) and the sixth cylinder (8) have the same structure and all include a cylinder shell (10), wherein an inner air chamber (13) and an outer air chamber (12) located outside the inner air chamber (13) are arranged in the cylinder shell (10); a sleeve (15) is arranged in the inner air chamber (13), a support rod (17) is arranged in the sleeve (15), and the support rod (17) is fixed to the bottom of the sleeve (15) through an elastic pad (18); a plurality of limiting structures (16) are arranged on the sleeve (15); a locking structure (11) is arranged on the inner air chamber (13), and the inner air chamber (13) is connected to the outer air chamber (12) through a damping hole (14);

[0013] A rubber bowl (19) is arranged at the top opening of the inner air chamber (13), and an inner air chamber rubber bowl pressing piece (20) is arranged inside the rubber bowl (19), and the inner air chamber rubber bowl pressing piece (20) is sleeved on the top of the sleeve (15); a rubber bowl closing ring (21) and a support plate (22) located on the rubber bowl closing ring (21) are arranged on the top of the cylinder housing (10), an anti-collision pad (23) is arranged between the rubber bowl closing ring (21) and the support plate (22), and the top of the support rod (17) is connected to the central circular hole of the support plate (22).

[0014] According to an optional embodiment of the utility model, the first cylinder (3), the third cylinder (5), and the fourth cylinder (6) are primary cylinders, and the second cylinder (4), the fifth cylinder (7), and the sixth cylinder (8) are secondary cylinders.

[0015] Compared with the prior art, the embodiment of the utility model provides a large-sized air-floating passive shock-absorbing platform, which has the following beneficial effects: (1) The air-floating passive shock-absorbing platform is supported by 6 detachable cylinders. After the large-sized platform is floated, the height of the large-sized platform is adjusted by three height adjustment valves to make the large-sized platform self-balanced. (2) Compared with other shock-absorbing methods, the 6 detachable cylinders can reduce the vibration transmitted to the large-sized platform, which is convenient and practical. Therefore, the air-floating passive shock-absorbing platform has low cost and good shock-absorbing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments or 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 work.

[0017] Figure 1 A schematic structural diagram of a large-sized air-floating passive vibration-absorbing platform provided in an embodiment of the present application.

[0018] Figure 2 A top view of a large-sized air-floating passive vibration-absorbing platform provided in an embodiment of the present application.

[0019] Figure 3 A schematic diagram of a 6-cylinder air circuit control structure of a large-sized air-floating passive shock-absorbing platform provided in an embodiment of the present application.

[0020] Figure 4 A schematic diagram of a detachable cylinder structure of a large-sized air-floating passive shock-absorbing platform provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the utility model provides a large-sized air-floating passive shock-absorbing platform, including a large-sized table top 1, a retaining structure 1-1 is arranged around the large-sized table top 1, a base 2 is arranged under the large-sized table top 1, and 6 detachable cylinders are connected to the bottom surface of the base 2, and the 6 detachable cylinders are connected to a 6-cylinder air circuit control structure, and the 6-cylinder air circuit control structure is used to adjust the height of the 6 detachable cylinders.

[0023] Among them, the six detachable cylinders are the first cylinder 3, the second cylinder 4, the third cylinder 5, the fourth cylinder 6, the fifth cylinder 7 and the sixth cylinder 8. The first cylinder 3, the second cylinder 4 and the third cylinder 5 are located on one side of the bottom surface of the base 2, and the fourth cylinder 6, the fifth cylinder 7 and the sixth cylinder 8 are located on the other side of the bottom surface of the base 2.

[0024] The 6-cylinder air circuit control structure includes a first air pipe 9-1, a second air pipe 9-2, a third air pipe 9-3, a fourth air pipe 9-4 and a fifth air pipe 9-5. The second air pipe 9-2, the third air pipe 9-3 and the fifth air pipe 9-5 are respectively connected to the first air pipe 9-1 through a joint 9-6, and the fourth air pipe 9-4 is connected to the third air pipe 9-3 through a joint 9-6; the first air pipe is connected to the ventilation pipe 9-10 through a joint 9-6 and an oil-water filter pressure regulating valve 9-11.

[0025] The outer air chambers of the first cylinder 3 and the third cylinder 5 are respectively connected to the two ends of the first air pipe 9-1 through the height regulating valve 9-9; the outer air chamber of the second air pipe 9-2 is connected to the end of the second air pipe 9-2, the outer air chamber of the fourth cylinder 6 is connected to the end of the fourth air pipe 9-4 through the height regulating valve 9-9, the outer air chamber of the fifth cylinder 7 is connected to the end of the third air pipe 9-3, and the outer air chamber of the sixth cylinder 8 is connected to the end of the fifth air pipe 9-5.

[0026] Speed ​​regulating valves 9-7 and switch valves 9-8 are provided on the pipe sections of the first air pipe 9-1, the second air pipe 9-2, the third air pipe 9-3, the fourth air pipe 9-4 and the fifth air pipe 9-5 close to the cylinder.

[0027] like Figure 4As shown, the first cylinder 3, the second cylinder 4, the third cylinder 5, the fourth cylinder 6, the fifth cylinder 7 and the sixth cylinder 8 have the same structure and all include a cylinder shell 10, in which an inner air chamber 13 and an outer air chamber 12 located outside the inner air chamber 13 are arranged; a sleeve 15 is arranged in the inner air chamber 13, a support rod 17 is arranged in the sleeve 15, and the support rod 17 is fixed to the bottom of the sleeve 15 through an elastic pad 18; a plurality of limiting structures 16 are arranged on the sleeve 15; a locking structure 11 is arranged on the inner air chamber 13, and the inner air chamber 13 is connected to the outer air chamber 12 through a damping hole 14.

[0028] A rubber bowl 19 is provided at the top opening of the inner air chamber 13, and an inner air chamber rubber bowl clamping piece 20 is provided on the inner side of the rubber bowl 19, and the inner air chamber rubber bowl clamping piece 20 is sleeved on the top of the sleeve 15; a rubber bowl closing ring 21 and a support plate 22 located on the rubber bowl closing ring 21 are provided on the top of the cylinder housing 10, an anti-collision pad 23 is provided between the rubber bowl closing ring 21 and the support plate 22, and the top of the support rod 17 is connected to the central circular hole of the support plate 22.

[0029] The first cylinder 3, the third cylinder 5, and the fourth cylinder 6 are primary cylinders, and the second cylinder 4, the fifth cylinder 7, and the sixth cylinder 8 are secondary cylinders.

[0030] As described above, the 6 detachable air cylinders of the large-size air-floating passive shock-absorbing platform, after the external air source inflates the first air pipe through the ventilation pipe, the first to sixth air cylinders are inflated and enter the inner air chamber from the outer air chamber. When the air pressure in the inner air chamber increases, the rubber bowl is deformed, driving the sleeve to rise, thereby lifting the large-size table top. After the large-size table top floats, the height of the large-size table top is adjusted by three height-adjusting valves to make the large-size table top self-balanced.

[0031] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A large-sized air-floating passive vibration-absorbing platform, characterized in that: It comprises a large-sized table top (1), a base (2) is arranged below the large-sized table top (1), the bottom surface of the base (2) is connected to 6 detachable cylinders, the 6 detachable cylinders are connected to a 6-cylinder air path control structure, and the 6-cylinder air path control structure is used to adjust the height of the 6 detachable cylinders; The six detachable cylinders are a first cylinder (3), a second cylinder (4), a third cylinder (5), a fourth cylinder (6), a fifth cylinder (7) and a sixth cylinder (8); the first cylinder (3), the second cylinder (4) and the third cylinder (5) are located on one side of the bottom surface of the base (2); and the fourth cylinder (6), the fifth cylinder (7) and the sixth cylinder (8) are located on the other side of the bottom surface of the base (2); The 6-cylinder air circuit control structure comprises a first air pipe (9-1), a second air pipe (9-2), a third air pipe (9-3), a fourth air pipe (9-4) and a fifth air pipe (9-5); the second air pipe (9-2), the third air pipe (9-3) and the fifth air pipe (9-5) are respectively connected to the first air pipe (9-1) through a joint (9-6); the fourth air pipe (9-4) is connected to the third air pipe (9-3) through a joint (9-6); the first air pipe is connected to the ventilation pipe (9-10) through a joint (9-6) and an oil-water filter pressure regulating valve (9-11); The outer air chambers of the first air cylinder (3) and the third air cylinder (5) are respectively connected to the two ends of the first air pipe (9-1) through a height regulating valve (9-9); the outer air chamber of the second air pipe (9-2) is connected to the end of the second air pipe (9-2); the outer air chamber of the fourth air cylinder (6) is connected to the end of the fourth air pipe (9-4) through a height regulating valve (9-9); the outer air chamber of the fifth air cylinder (7) is connected to the end of the third air pipe (9-3); and the outer air chamber of the sixth air cylinder (8) is connected to the end of the fifth air pipe (9-5).

2. A large-size air-floating passive vibration-absorbing platform according to claim 1, characterized in that: Speed ​​regulating valves (9-7) and switch valves (9-8) are provided on the pipe sections of the first air pipe (9-1), the second air pipe (9-2), the third air pipe (9-3), the fourth air pipe (9-4) and the fifth air pipe (9-5) close to the cylinder.

3. A large-size air-floating passive vibration-absorbing platform according to claim 2, characterized in that: The first cylinder (3), the second cylinder (4), the third cylinder (5), the fourth cylinder (6), the fifth cylinder (7) and the sixth cylinder (8) have the same structure and all include a cylinder shell (10), wherein an inner air chamber (13) and an outer air chamber (12) located outside the inner air chamber (13) are arranged in the cylinder shell (10); a sleeve (15) is arranged in the inner air chamber (13), a support rod (17) is arranged in the sleeve (15), and the support rod (17) is fixed to the bottom of the sleeve (15) through an elastic pad (18); a plurality of limiting structures (16) are arranged on the sleeve (15); a locking structure (11) is arranged on the inner air chamber (13), and the inner air chamber (13) is connected to the outer air chamber (12) through a damping hole (14); A rubber bowl (19) is arranged at the top opening of the inner air chamber (13), and an inner air chamber rubber bowl pressing piece (20) is arranged inside the rubber bowl (19), and the inner air chamber rubber bowl pressing piece (20) is sleeved on the top of the sleeve (15); a rubber bowl closing ring (21) and a support plate (22) located on the rubber bowl closing ring (21) are arranged on the top of the cylinder housing (10), an anti-collision pad (23) is arranged between the rubber bowl closing ring (21) and the support plate (22), and the top of the support rod (17) is connected to the central circular hole of the support plate (22).

4. A large-size air-floating passive vibration-absorbing platform according to claim 3, characterized in that: The first cylinder (3), the third cylinder (5) and the fourth cylinder (6) are primary cylinders, and the second cylinder (4), the fifth cylinder (7) and the sixth cylinder (8) are secondary cylinders.

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