Air spring vibration isolation device

Abstract

The invention discloses an air spring vibration isolation device, and belongs to the technical field of vibration isolation devices. The placing unit is connected in the rack in a sliding manner; the rotating unit is rotationally connected into the rack; the buffer unit is connected in the rack in a sliding manner; the vibration isolation unit is slidably connected to the surface of the buffer unit; and the adjusting unit is rotationally connected to the rotating unit. After the precise instrument is mounted on the surface of the placing unit, the rotating unit can drive the adjusting unit to rotate under the action of the placing unit, so that the buffering unit and the vibration isolation unit can integrally buffer and damp the placing unit through the rotating unit and the adjusting unit respectively; and the stability of the precise instrument on the surface of the placement unit during use is improved. And the adjusting unit can adjust the position of the rotating unit, so that the buffering and damping effects of the buffering unit and the vibration isolation unit can be adjusted, and the placing unit can adapt to different precise instruments.

Description

Technical Field

[0001] The invention relates to the technical field of vibration isolation devices, and in particular to an air spring vibration isolation device. Background Art

[0002] A Chinese patent (publication number: CN113819182A) discloses an air spring vibration isolation device. The air spring vibration isolation device includes: a top plate, a bottom plate, a first damper, a second damper and at least one air spring assembly; the first damper, the air spring assembly and the second damper are arranged in sequence between the top plate and the bottom plate; the air spring assembly includes an air inlet pipe and an air outlet pipe; a through hole matching the air inlet pipe and the air outlet pipe is provided on the bottom plate. The patent can effectively isolate the vibration in the vertical direction by setting the first damper, the second damper and at least one air spring assembly, and when vibration occurs, the expansion and contraction of the air spring can generate energy dissipation damping, while the first damper and the second damper can also provide corresponding energy dissipation damping, thereby improving the vibration isolation effect while improving the vibration isolation efficiency.

[0003] The air spring vibration isolation device in the above technical solution also has the following defects when in use: the size and position of the air spring in the air spring vibration isolation device are fixed, so the buffering and vibration isolation effects of the vibration isolation device are fixed, and it is difficult to adapt to different types of precision instruments. Therefore, it is necessary to provide an air spring vibration isolation device to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of an embodiment of the present invention is to provide an air spring vibration isolation device to solve the problems in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: An air spring vibration isolation device, comprising: frame; A placement unit, slidably connected in the rack, is used to install the instrument; The rotating unit is rotatably connected in the frame, and its surface is slidably connected to the placement unit, so as to rotate under the action of the placement unit; A buffer unit is slidably connected in the frame, and at least ten groups of the buffer units are installed. The rotating unit is slidably connected to the surface of the buffer unit. The rotating unit is used to cooperate with each group of buffer units to achieve buffering of the placement unit, thereby achieving buffering and shock absorption of the instrument; A vibration isolation unit is slidably connected to the surface of the buffer unit and is rotationally connected to the rotating unit, so as to reduce the vibration of the buffer unit; The adjusting unit is rotatably connected to the rotating unit and is used for adjusting the position of the rotating unit, thereby adjusting the buffering and damping effects of the buffering unit and the vibration isolation unit.

[0006] As a preferred technical solution of the present invention, the buffer unit includes: a fixed plate installed inside the frame, a fixed cylinder being fixed on the fixed plate; a decagonal groove opened on the surface of the fixed cylinder; a fixed frame obliquely connected to the surface of the decagonal groove, and having a sliding rod slidably connected inside; a limiting frame fixed to the end of the sliding rod, and the limiting frame and the fixed frame are connected by an elastic member.

[0007] As a preferred technical solution of the present invention, the rotating unit includes: a rotating ring, which is rotatably connected to the end surface of the fixed cylinder away from the decagonal groove, and four groups of arc frames are installed on the surface, and the installation directions of two adjacent groups of arc frames are opposite; a rotating shaft, which is connected to the sliding rod, and the surface is rotatably connected with a guide wheel, and the guide wheel and the two sides of the arc frame are rollingly connected; a lifting rod, which is slidably connected in the fixed plate, one end is slidably connected to the end of the rotating ring, and the other end is hinged to the ends of the two groups of sliding rods away from the limit frames through two groups of connecting rods.

[0008] As a preferred technical solution of the present invention, the vibration isolation unit includes: an L-shaped frame, which is slidably connected to the surface of the decagonal groove, and its end is connected to the end of the sliding rod; a hydraulic damper, which is installed on the surface of the decagonal groove, and its two side surfaces are respectively connected to the inner walls of two groups of L-shaped frames through air springs.

[0009] As a preferred technical solution of the present invention, the adjustment unit includes: a groove, which is opened on the rotating ring and is slidably connected to a sliding part inside; a convex surface, which is opened at the end of the sliding part and is slidably connected to the end of the lifting rod; an adjustment groove, which is opened on the rotating ring; an adjustment rod, which is rotatably connected in the adjustment groove and is connected to the sliding part through a thread on the surface.

[0010] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: after the precision instrument is installed on the surface of the placement unit, the rotating unit will drive the adjusting unit to rotate under the action of the placement unit until the adjusting unit rotates to contact the buffer unit, so that the buffer unit and the vibration isolation unit can respectively buffer and damp the placement unit through the rotating unit and the adjusting unit as a whole, thereby reducing the vibration of the placement unit and improving the stability of the precision instrument on the surface of the placement unit when in use.

[0011] Compared with the vibration isolation device in the prior art which has a single and fixed buffering and vibration isolation effect, the embodiment of the present invention provides a rotating unit and an adjusting unit. The adjusting unit can adjust the position of the rotating unit, and further can adjust the buffering and damping effects of the buffer unit and the vibration isolation unit, so that the placement unit can adapt to different precision instruments.

[0012] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the overall structure of an air spring vibration isolation device provided in an embodiment of the present invention.

[0014] Figure 2 It is a schematic diagram of the structure of the buffer unit provided in an embodiment of the present invention.

[0015] Figure 3 It is a schematic diagram of the structure of the rotating unit provided in an embodiment of the present invention.

[0016] Figure 4 for Figure 3 A partial enlarged view of part A.

[0017] Figure numerals: 1. frame; 2. placement unit; 21. slide bar; 22. first placement rack; 23. second placement rack; 3. buffer unit; 31. fixed plate; 32. fixed cylinder; 33. decagonal groove; 34. fixed rack; 35. sliding rod; 351. limit rack; 36. elastic member; 4. vibration isolation unit; 41. L-shaped rack; 42. air spring; 43. hydraulic damper; 5. rotating unit; 51. rotating ring; 52. arc rack; 53. rotating shaft; 54. guide wheel; 55. lifting rod; 551. connecting rod; 6. adjusting unit; 61. groove; 62. sliding member; 621. convex surface; 63. adjusting groove; 64. adjusting rod. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0020] See also Figure 1 to Figure 4 , an air spring vibration isolation device, comprising: Rack 1; A placement unit 2 is slidably connected in the rack 1 and is used for installing the instrument; The rotating unit 5 is rotatably connected in the frame 1, and its surface is slidably connected to the placement unit 2, so as to be rotated under the action of the placement unit 2; The buffer unit 3 is slidably connected in the frame 1. At least ten groups of the buffer units 3 are installed. The rotating unit 5 is slidably connected to the surface of the buffer unit 3. The rotating unit 5 is used to cooperate with each group of buffer units 3 to achieve buffering of the placement unit 2, thereby achieving buffering and shock absorption of the instrument; The vibration isolation unit 4 is slidably connected to the surface of the buffer unit 3 and is rotationally connected to the rotating unit 5, so as to reduce the vibration of the buffer unit 3; The adjusting unit 6 is rotatably connected to the rotating unit 5 and is used for adjusting the position of the rotating unit 5 , thereby adjusting the buffering and damping effects of the buffer unit 3 and the vibration isolation unit 4 .

[0021] In an embodiment of the present invention, after the precision instrument is installed on the surface of the placement unit 2, the rotating unit 5 will drive the adjusting unit 6 to rotate under the action of the placement unit 2 until the adjusting unit 6 rotates to contact the buffer unit 3, so that the buffer unit 3 and the vibration isolation unit 4 can respectively buffer and damp the placement unit 2 as a whole through the rotating unit 5 and the adjusting unit 6, thereby reducing the vibration of the placement unit 2 and improving the stability of the precision instrument on the placement unit 2 during use. The adjusting unit 6 can adjust the position of the rotating unit 5, and then adjust the buffering and damping effects of the buffer unit 3 and the vibration isolation unit 4, so that the placement unit 2 can adapt to different precision instruments.

[0022] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the placement unit 2 includes: Slide bars 21 are slidably connected in the frame 1, and four groups of slide bars 21 are installed; A first placement rack 22 is fixed to the ends of two sets of opposite slide bars 21, and the first placement rack 22 is installed with a set; The second placement rack 23 is fixed to the ends of the other two groups of opposite sliding rods 21, and two groups of the second placement rack 23 are installed.

[0023] In this embodiment, when installing the precision instrument, the precision instrument is placed on the surface of the first placement rack 22 or the second placement rack 23. When the precision instrument vibrates, the first placement rack 22 or the second placement rack 23 will push the slide bar 21 to slide in the frame 1 under the action of the precision instrument. The rotating unit 5 will compress the buffer unit 3 under the action of the slide bar 21, so that the buffer unit 3 can buffer and shock the slide bar 21 through the rotating unit 5, and then can shock the precision instrument on the surface of the first placement rack 22 or the second placement rack 23, thereby improving the stability of the precision instrument when in use.

[0024] In one embodiment of the present invention, Figure 2 and Figure 4As shown, the buffer unit 3 includes: A fixing plate 31 is installed inside the frame 1, and a fixing cylinder 32 is fixed on the fixing plate 31; A decagonal groove 33 is provided on the surface of the fixing cylinder 32; The fixing frame 34 is connected obliquely to the surface of the decagonal groove 33, and a sliding rod 35 is slidably connected inside; The limiting frame 351 is fixed to the end of the sliding rod 35 , and the limiting frame 351 and the fixing frame 34 are connected via an elastic member 36 .

[0025] In this embodiment, when sliding, the sliding rod 21 can pull the sliding rod 35 to slide in the fixed frame 34 through the rotating unit 5, and the sliding rod 35 can compress the elastic member 36 through the limiting frame 351, so that the limiting frame 351 can buffer the sliding rod 35 under the action of the elastic member 36, slowing down the sliding of the sliding rod 35, and then the sliding rod 35 can buffer the placement unit 2 through the rotating unit 5, thereby improving the stability of the precision instrument on the surface of the placement unit 2 during operation.

[0026] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the rotating unit 5 comprises: The rotating ring 51 is rotatably connected to the end surface of the fixed cylinder 32 away from the decagonal groove 33, and four groups of arc frames 52 are installed on the surface, and the installation directions of two adjacent groups of arc frames 52 are opposite; The rotating shaft 53 is connected to the slide bar 21, and a guide wheel 54 is rotatably connected on the surface thereof, and the guide wheel 54 is rollingly connected to both sides of the arc frame 52; The lifting rod 55 is slidably connected in the fixed plate 31 , one end of which is slidably connected to the end of the rotating ring 51 , and the other end of which is hinged to the ends of the two groups of sliding rods 35 away from the limiting frame 351 through two groups of connecting rods 551 .

[0027] In this embodiment, after the precision instrument is mounted on the first placement rack 22 or the second placement rack 23, the slide bar 21 will slide in the frame 1. The slide bar 21 can drive the guide wheels 54 on its surface to slide synchronously through the rotating shaft 53. Since the two sides of the arc frame 52 and the two groups of guide wheels 54 are rollingly connected, the rotating ring 51 will rotate on the surface of the fixed cylinder 32 under the action of the arc frame 52 and the two groups of guide wheels 54.

[0028] Specifically, when the precision instrument is placed on the surface of the second placement rack 23 and generates vibrations during operation, the second placement rack 23 will push the two adjacent groups of slide bars 21 to slide downward under the vibration of the precision instrument. At the same time, since the installation directions of the two adjacent groups of arc frames 52 are opposite, the rotating ring 51 will rotate on the surface of the fixed cylinder 32 under the action of the guide wheels 54 on the two groups of slide bars 21 and the two corresponding groups of arc frames 52. When the rotating ring 51 rotates, it can drive the adjustment unit 6 at its end to rotate synchronously. When the adjustment unit 6 rotates and contacts the upper end of the lifting rod 55, the The lifting rod 55 will slide downward in the fixed plate 31 under the action of the adjusting unit 6. When sliding, the lifting rod 55 can pull the sliding rod 35 to slide in the fixed frame 34 through the connecting rod 551, so that the sliding rod 35 can drive the limit frame 351 at its end to compress the elastic member 36, so that the limit frame 351 can buffer the sliding rod 35 under the action of the elastic member 36, slowing down the sliding of the sliding rod 35, and then the sliding rod 35 can buffer the rotation of the rotating ring 51 through the connecting rod 551, the lifting rod 55 and the adjusting unit 6, thereby slowing down the vibration of the precision instrument placed on the surface of the unit 2.

[0029] When a precision instrument is placed on the surface of one of the first placement racks 22, the same as the above working process, after the precision instrument is working, the rotating ring 51 will also rotate under the action of the guide wheel 54 and the arc frame 52. Because the installation directions of the two adjacent arc frames 52 are opposite, the rotating ring 51 will rotate in the opposite direction at this time, and the rotating ring 51 can drive the adjustment unit 6 to rotate, and the buffer unit 3 can also realize the buffering of the precision instrument on the surface of the first placement rack 22. Because the rotating ring 51 can drive the remaining three arc frames 52 on its surface to rotate synchronously in the opposite direction when rotating in the reverse direction, the second placement rack 23 will rise under the action of the corresponding arc frame 52 and the guide wheel 54, so as to facilitate the subsequent placement of other precision instruments on the surface of the second placement rack 23.

[0030] The elastic member 36 can be a spring or elastic rubber, which is not limited here.

[0031] In one embodiment of the present invention, Figure 4 As shown, the vibration isolation unit 4 includes: An L-shaped frame 41 is slidably connected to the surface of the decagonal groove 33, and an end portion is connected to an end portion of the sliding rod 35; The hydraulic damper 43 is installed on the surface of the decagonal groove 33, and the two side surfaces are connected to the inner walls of the two groups of L-shaped frames 41 through air springs 42 respectively.

[0032] In this embodiment, because the fixed frame 34 and the sliding rod 35 are both inclined, when the two sets of sliding rods 35 slide, the two sets of L-shaped frames 41 at their ends can be driven to move closer to each other, so that the two sets of L-shaped frames 41 can compress the two sets of air springs 42, and the hydraulic damper 43 can prevent the air spring 42 from continuing to move, thereby reducing the vibration of the precision instrument. The hydraulic damper 43 is a prior art and will not be described in detail here.

[0033] In one embodiment of the present invention, Figure 3 and Figure 4 As shown, the adjustment unit 6 includes: A groove 61 is provided on the rotating ring 51 and a sliding member 62 is slidably connected therein; The convex surface 621 is provided at the end of the sliding member 62, and the surface is slidably connected to the end of the lifting rod 55; An adjusting groove 63 is provided on the rotating ring 51; The adjusting rod 64 is rotatably connected in the adjusting groove 63, and the surface is connected to the sliding member 62 through a thread.

[0034] In this embodiment, the rotating ring 51 can drive the sliding member 62 inside it to slide synchronously through the groove 61 when rotating. When the convex surface 621 at the end of the sliding member 62 slides to contact the upper end of the lifting rod 55, the lifting rod 55 will slide downward in the fixed plate 31 under the push of the convex surface 621, and then the lifting rod 55 can pull the sliding rod 35 through the connecting rod 551 to slide obliquely in the fixed frame 34. During the sliding process of the sliding rod 35, the buffer unit 3 and the vibration isolation unit 4 can respectively buffer and damp the sliding rod 35, thereby reducing the vibration of the placement unit 2 and improving the stability of the precision instruments on the surface of the placement unit 2 during use.

[0035] By rotating the adjusting rod 64, since the surface of the adjusting rod 64 and the sliding member 62 are connected by threads, the sliding member 62 will slide in the groove 61 under the action of the adjusting rod 64, so that the position of the sliding member 62 and the convex surface 621 in the groove 61 can be adjusted, and then the buffering and damping effects of the buffer unit 3 and the vibration isolation unit 4 can be adjusted, so that the placement unit 2 can adapt to different precision instruments.

[0036] The working principle of the present invention is: after the precision instrument is installed on the first placement rack 22 or the second placement rack 23, the slide rod 21 will slide in the frame 1, and the slide rod 21 can drive the guide wheels 54 on its surface to slide synchronously through the rotating shaft 53 when sliding, and the rotating ring 51 will rotate on the surface of the fixed cylinder 32 under the action of the arc frame 52 and the two sets of guide wheels 54.

[0037] When the rotating ring 51 rotates, it can drive the sliding member 62 inside it to slide synchronously through the groove 61. When the convex surface 621 at the end of the sliding member 62 slides to contact the upper end of the lifting rod 55, the lifting rod 55 will slide downward in the fixed plate 31 under the push of the convex surface 621, and then the lifting rod 55 can pull the sliding rod 35 through the connecting rod 551 to slide obliquely in the fixed frame 34. During the sliding process of the sliding rod 35, the buffer unit 3 and the vibration isolation unit 4 can respectively buffer and damp the sliding rod 35, thereby reducing the vibration of the placement unit 2 and improving the stability of the precision instruments on the surface of the placement unit 2 during use.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements 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 isolation device, characterized in that: The air spring vibration isolation device comprises: Rack (1); A placement unit (2) is slidably connected to the frame (1) and is used to install the instrument; A rotating unit (5) is rotatably connected in the frame (1), and its surface is slidably connected to the placement unit (2), so as to be rotated under the action of the placement unit (2); A buffer unit (3) is slidably connected in the frame (1), wherein at least ten groups of the buffer units (3) are installed, and a rotating unit (5) is slidably connected to the surface of the buffer unit (3). The rotating unit (5) is used to cooperate with each group of buffer units (3) to achieve buffering of the placement unit (2), thereby achieving buffering and shock absorption of the instrument; A vibration isolation unit (4) is slidably connected to the surface of the buffer unit (3) and is rotationally connected to the rotating unit (5) to reduce the vibration of the buffer unit (3); The adjustment unit (6) is rotatably connected to the rotating unit (5) and is used to adjust the position of the rotating unit (5), thereby adjusting the buffering and damping effects of the buffer unit (3) and the vibration isolation unit (4).

2. The air spring vibration isolation device according to claim 1, characterized in that: The placement unit (2) comprises: Slide bars (21) are slidably connected in the frame (1), and four groups of the slide bars (21) are installed; A first placement rack (22) is fixed to the ends of two sets of opposite sliding rods (21), and the first placement rack (22) is installed with a set; The second placement rack (23) is fixed on the ends of the other two groups of opposite sliding rods (21), and the second placement rack (23) is installed with two groups.

3. The air spring vibration isolation device according to claim 1, characterized in that: The buffer unit (3) comprises: A fixing plate (31) is installed inside the frame (1), and a fixing cylinder (32) is fixed on the fixing plate (31); A decagonal groove (33) is formed on the surface of the fixed cylinder (32); A fixed frame (34) is obliquely connected to the surface of the decagonal groove (33) and is slidably connected to a sliding rod (35) inside; The limiting frame (351) is fixed on the end of the sliding rod (35), and the limiting frame (351) and the fixing frame (34) are connected via an elastic member (36).

4. The air spring vibration isolation device according to claim 3, characterized in that: The rotating unit (5) comprises: A rotating ring (51) is rotatably connected to the end surface of the fixed cylinder (32) away from the decagonal groove (33), and four groups of arc frames (52) are installed on the surface, and the installation directions of two adjacent groups of arc frames (52) are opposite; A rotating shaft (53) is connected to the slide bar (21), and a guide wheel (54) is rotatably connected to the surface of the rotating shaft (53), and the guide wheel (54) is rollingly connected to both sides of the arc frame (52); The lifting rod (55) is slidably connected in the fixed plate (31), one end of which is slidably connected to the end of the rotating ring (51), and the other end of which is respectively hinged to the ends of the two groups of sliding rods (35) away from the limiting frame (351) through two groups of connecting rods (551).

5. The air spring vibration isolation device according to claim 3, characterized in that: The vibration isolation unit (4) comprises: An L-shaped frame (41) is slidably connected to the surface of the decagonal groove (33), and an end portion is connected to an end portion of the sliding rod (35); The hydraulic damper (43) is installed on the surface of the decagonal groove (33), and the two side surfaces are connected through air springs (42) and the inner walls of the two groups of L-shaped frames (41).

6. The air spring vibration isolation device according to claim 4, characterized in that: The regulating unit (6) comprises: A groove (61) is provided on the rotating ring (51) and has a sliding member (62) slidably connected therein; A convex surface (621) is provided at the end of the sliding member (62), and the surface is slidably connected to the end of the lifting rod (55); An adjusting groove (63) is provided on the rotating ring (51); The adjusting rod (64) is rotatably connected in the adjusting groove (63), and its surface is connected with the sliding member (62) through a thread.

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