Atomic gravimeter active vibration isolation device based on air floatation support

Abstract

The utility model relates to the field of atomic gravimeters, and discloses an atomic gravimeter active vibration isolation device based on air floatation support, which comprises a mounting plate, an active vibration isolation mechanism is arranged at the lower part of the mounting plate, a fixed anti-loosening mechanism is arranged between the mounting plate and the active vibration isolation mechanism, the fixed anti-loosening mechanism comprises a main bolt, and the main bolt is fixedly connected with the active vibration isolation mechanism. The left portion and the right portion of the main bolt are each provided with an anti-loosening assembly, an auxiliary bolt is arranged in the middle of each anti-loosening assembly, the auxiliary bolts are in threaded connection with the mounting plate, and anti-loosening washers are jointly arranged between the auxiliary bolts and the anti-loosening assemblies; inserting rods are fixedly connected to the sides, close to each other, of the vertical plates of the two anti-loosening assemblies. According to the utility model, through the mutual cooperation of the mounting plate, the top plate, the main bolt, the anti-loosening assembly, the auxiliary bolt and other parts, the main bolt can be fixed after being screwed, the main bolt and the auxiliary bolt can be prevented from loosening due to vibration and other reasons, and the anti-loosening device is more practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of atomic gravimeter, especially based on the active vibration isolation device of atomic gravimeter of air floatation support. BACKGROUND

[0002] Air floatation support is a kind of technology using gas (usually air) or other fluid to generate support force, widely used in industry, construction, precision equipment and other fields, atomic gravimeter is a kind of high-precision measuring equipment, using atomic interference technology to measure gravity acceleration, compared with traditional gravimeter, atomic gravimeter has higher sensitivity and accuracy, in order to reduce the influence of vibration generated by atomic gravimeter on the outside world and the influence of external vibration on atomic gravimeter, vibration isolation device needs to be used.

[0003] Through the retrieval, China patent publication number: CN222277329U discloses a kind of air floatation spring transformer shock absorber, it is related to shock absorber technical field, including shock absorber body and the air cavity in the inside of shock absorber body, the top of shock absorber body is fixed with connecting block, the inside of connecting block is hollow, connecting block top is fixed with connecting sleeve, connecting sleeve outer side is slidably sleeved with adjusting pipe, the recess is formed in the upper end of the two sides of adjusting pipe, the clamping block is slidably arranged in the two recesses, the upper end of the side of the two clamping blocks that is far away from each other is inclined, and longitudinal adjusting connection mechanism is arranged between connecting block and adjusting pipe.The shock absorber body, connecting block, connecting sleeve, adjusting pipe, recess, clamping block, telescopic rod and spring provided by the utility model can determine the position of the shock absorber when the shock absorber is installed at the bottom of the transformer, and can avoid the separation of the shock absorber and the transformer as much as possible, so that the shock absorber can always stabilize the transformer.

[0004] The above-mentioned device, although by setting connecting block, connecting sleeve, adjusting pipe, recess, clamping block, telescopic rod and spring and other components are used to avoid the separation of shock absorber and installation equipment, but its structure is complex, and spring and other components are not stable in vibration environment, cannot guarantee fixing effect, is not practical enough, therefore based on the active vibration isolation device of atomic gravimeter of air floatation support is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides the active vibration isolation device of atomic gravimeter based on air floatation support, aims at improving the problems of complex structure in prior art, and spring and other components are not stable in vibration environment, cannot guarantee fixing effect.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: active vibration isolation device of atomic gravimeter based on air floating support, including mounting plate, the lower part of mounting plate is provided with active vibration isolation mechanism, the fixed anti -loose mechanism is commonly arranged between mounting plate and active vibration isolation mechanism, the fixed anti -loose mechanism includes main bolt, the left and right parts of main bolt are provided with anti -loose assembly, the middle part of anti -loose assembly is provided with auxiliary bolt, auxiliary bolt is connected with mounting plate thread, the anti -loose washer is commonly arranged between auxiliary bolt and anti -loose assembly.

[0007] As further description of the above technical scheme:

[0008] The anti-loose assembly includes a vertical plate, and the vertical plates of the two anti-loose assemblies are fixedly connected with a plug rod on the side close to each other.

[0009] As further description of the above technical scheme:

[0010] The middle part of the vertical plate is provided with a socket, and the plug block is movably connected with the socket.

[0011] As further description of the above technical scheme:

[0012] The side away from each other of the two vertical plates is fixedly connected with a fixed plate, the auxiliary bolt is threadedly connected with the fixed plate, and the top surface of the fixed plate is fixedly connected with a plurality of first protrusions.

[0013] As further description of the above technical scheme:

[0014] The plurality of first protrusions are arranged in a circular ring shape.

[0015] As further description of the above technical scheme:

[0016] The upper part of the main bolt is provided with a limiting opening, and the two plug rods are movably connected with the limiting opening.

[0017] As further description of the above technical scheme:

[0018] The top of the anti-loose washer is fixedly connected with a rubber ring, and the bottom of the anti-loose washer is fixedly connected with a plurality of second protrusions.

[0019] As further description of the above technical scheme:

[0020] The active vibration isolation mechanism includes a bottom plate, the upper part of the bottom plate is provided with a top plate, the main bolt is threadedly connected with the top plate, the air floating vibration isolator is commonly arranged between the bottom plate and the top plate, and the damper is commonly arranged between the bottom plate and the top plate.

[0021] The utility model has the advantages of the following:

[0022] 1. In the utility model, the cooperation between the mounting plate, the top plate, the main bolt, the anti-loose assembly, the auxiliary bolt and other components enables the main bolt to be fixed after being tightened, prevents the main bolt and the auxiliary bolt from loosening due to vibration and is more practical.

[0023] 2. In the utility model, the cooperation between the main bolt, the anti-loose assembly, the auxiliary bolt and the anti-loose washer enables the fixing anti-loose mechanism to have a smaller size, a simpler structure, more convenient installation and operation and better anti-loose effect. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The utility model provides an overall perspective schematic view of the active vibration isolation device of the atomic gravimeter based on the air floating support.

[0025] Figure 2 The utility model provides a split perspective schematic view of the active vibration isolation device of the atomic gravimeter based on the air floating support.

[0026] Figure 3 The utility model provides an overall perspective schematic view of the fixing anti-loose mechanism of the active vibration isolation device of the atomic gravimeter based on the air floating support.

[0027] Figure 4 The utility model provides a split perspective schematic view of the fixing anti-loose mechanism of the active vibration isolation device of the atomic gravimeter based on the air floating support.

[0028] Figure 5 The utility model provides a split perspective schematic view of the anti-loose assembly of the active vibration isolation device of the atomic gravimeter based on the air floating support.

[0029] LEGEND:

[0030] 1. Active vibration isolation mechanism; 2. Mounting plate; 3. Fixing anti-loose mechanism; 31. Main bolt; 32. Anti-loose assembly; 33. Auxiliary bolt; 34. Anti-loose washer; 321. Vertical plate; 322. Socket; 323. Insert rod; 324. Insert block; 325. Fixed plate; 326. No. 1 convex tooth; 311. Limiting port; 312. Rubber washer; 341. Rubber ring; 342. No. 2 convex tooth; 11. Bottom plate; 12. Top plate; 13. Air floating vibration isolator; 14. Damper. DETAILED DESCRIPTION

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-2 This utility model provides an embodiment of an active vibration isolation device for an atomic gravimeter based on air-bearing support. It includes a mounting plate 2, which is the plate at the bottom of the atomic gravimeter used to install the active vibration isolation device. An active vibration isolation mechanism 1 is provided at the lower part of the mounting plate 2, used to cooperate with the atomic gravimeter for vibration isolation. The active vibration isolation mechanism 1 includes a base plate 11, used to connect various components. A top plate 12 is provided at the upper part of the base plate 11, used to cooperate with the installation of a fixing and anti-loosening mechanism 3. A main bolt 31 is threadedly connected to the top plate 12. An air-bearing vibration isolator 13, an air-bearing support device, is provided between the base plate 11 and the top plate 12 for active vibration isolation. Multiple dampers 14 are provided between the base plate 11 and the top plate 12 for auxiliary buffering. The fixing and anti-loosening mechanism 3 is provided between the mounting plate 2 and the active vibration isolation mechanism 1 to ensure the stability of the installation between the mounting plate 2 and the active vibration isolation mechanism 1 and to prevent the bolts from loosening due to vibration.

[0033] like Figures 3-5 As shown, the fixing and anti-loosening mechanism 3 includes a main bolt 31, which is used to fix the mounting plate 2 and the active vibration isolation mechanism 1. Anti-loosening components 32 are provided on both the left and right sides of the main bolt 31 to prevent the main bolt 31 from rotating and loosening due to vibration. A secondary bolt 33 is provided in the middle of the anti-loosening component 32 to fix the anti-loosening component 32 and the mounting plate 2. The secondary bolt 33 is threaded to the mounting plate 2. An anti-loosening washer 34 is provided between the secondary bolt 33 and the anti-loosening component 32 to prevent the secondary bolt 33 from loosening.

[0034] Further, the anti-loose assembly 32 comprises a vertical plate 321, which is used for matching connection of components, the vertical plate 321 of the two anti-loose assemblies 32 is fixedly connected with a plug rod 323 on the side close to each other, the two plug rods 323 are symmetrically arranged, and the two plug rods 323 are tightly close to each other in front and back, the plug rod 323 is fixedly connected with a plug block 324 on the end away from the vertical plate 321, the plug block 324 on one side of the plug rod 323 is inserted into the socket 322 on the other side of the vertical plate 321, so that the two anti-loose assemblies 32 are connected, the middle part of the vertical plate 321 is provided with the socket 322, the plug block 324 is movably connected with the socket 322, the side away from each other of the two vertical plates 321 is fixedly connected with a fixed plate 325, which is used for matching the fixing of the secondary screw 33, the secondary screw 33 is threadedly connected with the fixed plate 325, the top surface of the fixed plate 325 is fixedly connected with a plurality of first protruding teeth 326, the plurality of first protruding teeth 326 are arranged in a circular ring shape, and the first protruding teeth 326 are engaged with the second protruding teeth 342 on the lower part of the anti-loose washer 34.

[0035] Further, the upper part of the main screw 31 is provided with a limiting opening 311, which is used for matching connection of the anti-loose assembly 32, the two plug rods 323 are movably connected with the limiting opening 311, the rubber washer 312 is arranged between the main screw 31 and the mounting plate 2, which is used for assisting in preventing loosening of the main screw 31, the rubber ring 341 is fixedly connected with the top of the anti-loose washer 34, which is used for matching anti-slip and anti-loosening between the anti-loose washer 34 and the secondary screw 33, the bottom of the anti-loose washer 34 is fixedly connected with a plurality of second protruding teeth 342, which are used for matching the first protruding teeth 326.

[0036] Working principle: when the active vibration isolation mechanism 1 is installed with the atomic gravimeter, first, the installation plate 2 at the lower part of the atomic gravimeter is placed on the upper part of the active vibration isolation mechanism 1, then the main bolt 31 is tightened with the installation plate 2 and the top plate 12, so that the installation plate 2 and the top plate 12 are fixed, and the main bolt 31 is tightly pressed against the rubber washer 312, then the two insertion rods 323 of the two anti-loosening assemblies 32 are inserted into the limiting openings 311 from both sides of the main bolt 31, then the insertion blocks 324 of the two insertion rods 323 are inserted into the insertion openings 322 of the opposite vertical plates 321, so that the two anti-loosening assemblies 32 are connected, then the anti-loosening washer 34 is sleeved on the outside of the auxiliary bolt 33, and the auxiliary bolt 33 is tightened with the fixed plate 325 and the installation plate 2, when the auxiliary bolt 33 is tightened with the fixed plate 325, the anti-loosening washer 34 is tightly pressed against the fixed plate 325, because the lower part of the anti-loosening washer 34 is provided with the second protruding teeth 342, and the upper part of the fixed plate 325 is provided with the first protruding teeth 326, the first protruding teeth 326 are engaged with the second protruding teeth 342, so that the auxiliary bolt 33 is limited to a certain extent, and the rubber ring 341 on the upper part of the anti-loosening washer 34 is tightly pressed by the auxiliary bolt 33, so as to enhance the friction between the anti-loosening washer 34 and the rubber ring 341, and effectively avoid the loosening of the auxiliary bolt 33 due to vibration, at this time, the installation of the anti-loosening mechanism 3 between the active vibration isolation mechanism 1 and the installation plate 2 is completed, so as to ensure the stability of the active vibration isolation device during use.

[0037] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or equivalent replacement of some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. Active vibration isolation device for an atomic gravimeter based on gas floatation support, comprising a mounting plate (2), characterized in that: The lower part of the mounting plate (2) is provided with an active vibration isolation mechanism (1), and a fixed anti-loose mechanism (3) is arranged between the mounting plate (2) and the active vibration isolation mechanism (1). The fixed anti-loose mechanism (3) comprises a main bolt (31), the left and right parts of the main bolt (31) are provided with anti-loose assemblies (32), the middle part of the anti-loose assembly (32) is provided with a secondary bolt (33), the secondary bolt (33) is threadedly connected with the mounting plate (2), and the secondary bolt (33) and the anti-loose assembly (32) are jointly provided with an anti-loose washer (34).

2. The gas-levitation support based active vibration isolation device for an atomic gravimeter according to claim 1, characterized in that: The anti-loose assembly (32) comprises a vertical plate (321), the side, where the vertical plates (321) of the two anti-loose assemblies (32) are close to each other, is fixedly connected with an insertion rod (323), and the end, where the insertion rod (323) is away from the vertical plate (321), is fixedly connected with an insertion block (324).

3. The gas-levitated support based active vibration isolation device for an atomic gravimeter according to claim 2, wherein: The middle part of the vertical plate (321) is provided with an insertion opening (322), and the insertion block (324) is movably connected with the insertion opening (322).

4. The gas-levitated support based active vibration isolation device for an atomic gravimeter according to claim 2, wherein: The side, where the two vertical plates (321) are away from each other, is fixedly connected with a fixed plate (325), the secondary bolt (33) is threadedly connected with the fixed plate (325), and the top surface of the fixed plate (325) is fixedly connected with a plurality of first protruding teeth (326).

5. The gas-levitated support based active vibration isolation device for an atomic gravimeter according to claim 4, characterized in that: The plurality of first protruding teeth (326) are arranged in a circular ring shape.

6. The gas-levitated support based active vibration isolation device for an atomic gravimeter according to claim 2, wherein: The upper part of the main bolt (31) is provided with a limiting opening (311), the two insertion rods (323) are movably connected with the limiting opening (311), and the main bolt (31) and the mounting plate (2) are jointly provided with a rubber washer (312).

7. The gas-levitated support based active vibration isolation device for an atomic gravimeter according to claim 1, wherein: The top of the anti-loose washer (34) is fixedly connected with a rubber ring (341), and the bottom of the anti-loose washer (34) is fixedly connected with a plurality of second protruding teeth (342).

8. The gas-levitation support based active vibration isolation device for an atomic gravimeter according to claim 1, characterized in that: The active vibration isolation mechanism (1) comprises a bottom plate (11), the upper part of the bottom plate (11) is provided with a top plate (12), the main bolt (31) is threadedly connected with the top plate (12), the bottom plate (11) and the top plate (12) are jointly provided with an air floating vibration isolator (13), and the bottom plate (11) and the top plate (12) are jointly provided with a plurality of dampers (14).

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