Vacuum tank with sliding door structure

Abstract

The invention discloses a vacuum tank with a translation door structure, which comprises a vacuum tank body, a vacuum tank end cover and an end cover bracket, rollers are arranged at the bottom of the end cover bracket, a test bed is fixed on the vacuum tank end cover, a guide rod which is parallel to the vacuum tank body and extends in the axial direction is arranged on the end cover bracket, and a sliding door is arranged on the guide rod. The guide rod is located below the test bed, a guide assembly is arranged below the vacuum tank body, and when the end cover support moves, the guide assembly guides the guide rod in the axial direction parallel to the vacuum tank body. Ground guide rails are not needed to guide the end cover support, and the problem of stumbling is avoided.

Description

Technical Field

[0001] The invention relates to a vacuum tank and belongs to the technical field of physical experimental equipment. Background Art

[0002] The vacuum tank is mainly used to provide a vacuum environment for various space equipment tests. In the prior art, the end cover of a small vacuum tank is mainly connected to the vacuum tank body through various hinges, and a rotary door opening method is adopted. Large vacuum tanks mostly use an axial translation method to open and close the door, especially vacuum tanks where the test bench of the carrying equipment is connected to the end cover. When the door is opened by axial translation, the test bench can be pulled out together, which is convenient for various operations. Figure 1 , Figure 2 As shown, since the end cap 100 of the vacuum tank, the test bench 200 and the test equipment have a large mass and a high center of gravity, in order to ensure stability, the bracket 300 used to push and pull the end cap 100 of the vacuum tank is made larger, and rollers 400 are arranged at the bottom of the bracket 300, and the bottom surface is arranged on the track 500 matched with the rollers 400. The spacing of the rollers 400 is greater than the width of the test bench 200, and the spacing of the corresponding ground track 500 is also greater than the width of the test bench 200. In order not to damage the ground, the track is higher than the ground, and when the test personnel need to operate the test equipment, the protruding track on the ground is easy to cause stumbling. Summary of the invention

[0003] In view of the above-mentioned defects of the prior art, the present invention provides a vacuum tank with a sliding door structure, which solves the problem that the track matched with the roller of the end cover bracket is higher than the ground and easily causes stumbling.

[0004] The technical solution of the present invention is as follows: A vacuum tank with a sliding door structure comprises a vacuum tank body, a vacuum tank end cover and an end cover bracket, a roller is provided at the bottom of the end cover bracket, a test bench is fixed on the vacuum tank end cover, a guide rod extending parallel to the axial direction of the vacuum tank body is provided on the end cover bracket, the guide rod is located below the test bench, a guide assembly is provided below the vacuum tank body, and when the end cover bracket moves, the guide rod is guided by the guide assembly in an axial direction parallel to the vacuum tank body.

[0005] Furthermore, the length of the guide rod guided by the guide assembly is greater than the moving distance required for the vacuum tank end cover to move from closed to fully open. After the vacuum tank end cover is opened, the front end of the guide rod is still in the guide assembly, and the restriction of the guide assembly on the guide rod can effectively prevent the vacuum tank end cover from driving the end cover bracket to fall.

[0006] Furthermore, the guide assembly is arranged at a position close to the opening end of the vacuum tank body.

[0007] Furthermore, the vacuum tank body is provided with a plurality of supporting legs, and the guide assembly is arranged on the supporting legs.

[0008] Furthermore, the guide assembly is arranged on the supporting leg close to the open end of the vacuum tank body.

[0009] Furthermore, the guide assembly includes a plurality of pairs of guide wheels, and the guide rod is a rectangular tube.

[0010] Furthermore, two guide rods are arranged transversely, and the distance between the guide rods is smaller than the width of the test bench.

[0011] Furthermore, the rollers are located on both sides of the end cover bracket, the rollers on both sides are fixed to the wheel axle, and the end cover bracket is provided with a motor for driving the wheel axle to rotate.

[0012] Furthermore, the wheel axle is connected to the end cover bracket via a height adjustment mechanism, and the height adjustment mechanism is used to adjust the height of the roller.

[0013] Furthermore, the height adjustment mechanism includes a mounting plate, an adjusting screw, an adjusting nut and a fixed plate, the fixed plate is fixedly connected to the end cover bracket, the mounting plate is connected to the wheel axle via a bearing, the adjusting screw is vertically fixed to the fixed plate, the mounting plate is sleeved on the adjusting screw and the height of the mounting plate is limited by the adjusting nut.

[0014] Compared with the prior art, the advantages of the technical solution provided by the present invention are: The present invention guides the guide rod under the test bench through the guide assembly under the vacuum tank body, and the roller no longer needs a guide rail for guidance, thereby eliminating the ground guide rail and avoiding stumbling problems.

[0015] When the end cover of the vacuum tank is opened, the vacuum tank body exerts a downward pressure on the front end of the guide rod, which can effectively prevent the end cover of the vacuum tank and the end cover bracket from tipping over, thereby reducing the size of the end cover bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic diagram of the structure of a vacuum tank with a sliding door structure in the prior art.

[0017] Figure 2 The present invention is a schematic structural diagram of an end cover and a bracket of a vacuum tank with a sliding door structure in the prior art.

[0018] Figure 3 It is a schematic diagram of the main structure of the vacuum tank with a sliding door structure of the embodiment (door open state).

[0019] Figure 4Schematic diagram of the top view of the vacuum tank with a sliding door structure according to the embodiment (door closed state).

[0020] Figure 5 Schematic diagram of the top view of the end cover bracket of the embodiment.

[0021] Figure 6 It is a partial front view structural schematic diagram of the cooperation between the guide assembly and the guide rod of the embodiment.

[0022] Figure 7 It is a partial side view structural schematic diagram of the cooperation between the guide assembly and the guide rod of the embodiment.

[0023] Figure 8 It is a partial side view structural schematic diagram of the end cover bracket provided with rollers according to the embodiment. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with examples. It should be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading this description, various equivalent modifications to this description by those skilled in the art fall within the scope defined by the claims attached to this application.

[0025] Please combine Figure 3 , Figure 4 As shown, the vacuum tank with a sliding door structure of this embodiment includes a vacuum tank body 1, a vacuum tank end cover 2 and an end cover bracket 3. The vacuum tank end cover 2 is fixed on the end cover bracket 3, and the vacuum tank is opened and closed by moving the end cover bracket 3. Specifically, the end cover bracket 3 drives the vacuum tank end cover 2 to move axially along the long axis of the vacuum tank body 1. A test bench 4 is fixedly installed on the vacuum tank end cover 2. The test bench 4 is used to place equipment that needs to be tested. When the vacuum tank end cover 2 moves, the test bench 4 moves with the vacuum tank end cover 2. Therefore, when the vacuum tank end cover 2 is opened, the test bench 4 is pulled out synchronously.

[0026] Please combine Figure 5 As shown, the end cover bracket 3 is used to support the end cover 2 of the vacuum tank, and the end cover bracket 3 is provided with a roller 6 driven by a motor 5. In this embodiment, two rollers 6 are provided, and for the two sides of the bottom of the end cover bracket 3, the two rollers 6 are installed together on a wheel shaft 7, and a first sprocket 8 is installed on the wheel shaft 7. The motor 5 is fixed on the end cover bracket 3, and a second sprocket 9 is installed on the output shaft of the motor 5. The first sprocket 8 and the second sprocket 9 are connected by a chain, so that the motor 5 drives the two rollers 6 to rotate, thereby moving the end cover bracket 3.

[0027] The end cover bracket 3 is provided with a guide rod 10 extending in parallel to the axial direction of the vacuum tank body 1. The guide rod 10 is located below the test bench 4. A guide assembly 11 is provided below the vacuum tank body 1. When the end cover bracket 3 moves, the guide assembly 11 guides the guide rod 10 in the axial direction parallel to the vacuum tank body 1. In this embodiment, the guide rod 10 is made of a rectangular tube. There are two guide rods 10. The distance between the two guide rods 10 is not greater than the width of the test bench 4. Figure 4 As shown, the spacing between the guide rods 10 is the same as the width of the test bench 4, and two guide rods 10 are used for guiding, which has better stability.

[0028] Please combine Figure 6 , Figure 7 As shown, the guide assembly 11 in this embodiment is installed on the support legs 1a of the vacuum tank body 1, specifically, the vacuum tank body 1 has four support legs 1a, two of which are close to the open end of the vacuum tank body 1, and the two outer support legs 1a are far away from the open end of the vacuum tank body 1. The guide assembly 11 is installed on the support legs 1a close to the open end of the vacuum tank body 1, and the length of the guide rod 10 guided by the guide assembly 11 is greater than the moving distance required for the vacuum tank end cover 2 to move from closed to fully open, so that it can be ensured that the front end of the guide rod 10 is still in the guide assembly 11 after the vacuum tank end cover 2.

[0029] The guide assembly 11 includes four groups of paired guide wheels 11a, of which two groups of guide wheels 11a are arranged up and down to cooperate with the top and bottom surfaces of the guide rod 10, and two groups of guide wheels 11a are arranged left and right to cooperate with the two side surfaces of the guide rod 10. Under the action of the four groups of guide wheels 11a, the guide rod 10 is guided to move in the axial direction parallel to the vacuum tank body 1.

[0030] Please further combine Figure 8 As shown, since the ground where the vacuum tank is arranged may be uneven, in order to ensure the smooth movement of the vacuum tank end cover 2, the wheel axle 7 is connected to the end cover bracket 3 through a height adjustment mechanism, and the height adjustment mechanism is used to adjust the height of the roller 6. Specifically, the height adjustment mechanism includes a mounting plate 12, an adjusting screw 13, an adjusting nut 14 and a fixing plate 15, wherein the fixing plate 15 is horizontally arranged and fixedly connected to the end cover bracket 3, two adjusting screws 13 are inverted and vertically fixed to the fixing plate 15, and the adjusting nuts 14 are arranged on the adjusting screws 13. The horizontal top surface of the mounting plate 12 is sleeved on the adjusting screws 13, and the wheel axle 7 is connected to the mounting plate 12 through a bearing. The position of the adjusting nut 14 on the adjusting screw 13 can be changed by rotating the adjusting nut 14, and the mounting plate 12 is limited by the adjusting nut 14 to its highest movable position, thereby adjusting the height of the roller 6.

[0031] The vacuum tank with a sliding door structure of this embodiment is guided by the guide rod 10 when the vacuum tank end cover 2 is opened, and no ground track is required. There is no stumbling problem when the personnel operate the test bench 4 equipment. At the same time, the front end of the guide rod 10 is pressed by the vacuum tank body 1 in the guide assembly 11, and the end cover bracket 3 can be made of a smaller size, which will prevent the vacuum tank end cover 2 from tipping over.

Claims

1. A vacuum tank with a sliding door structure, comprising a vacuum tank body, a vacuum tank end cover and an end cover bracket, wherein a roller is provided at the bottom of the end cover bracket, and a test bench is fixed on the vacuum tank end cover, characterized in that: The end cover bracket is provided with a guide rod extending parallel to the axial direction of the vacuum tank body, and the guide rod is located below the test bench. A guide assembly is provided below the vacuum tank body, and when the end cover bracket moves, the guide assembly guides the guide rod in an axial direction parallel to the vacuum tank body.

2. The vacuum tank with a sliding door structure according to claim 1, characterized in that: The length of the guide rod guided by the guide assembly is greater than the moving distance required for the vacuum tank end cover to move from closed to fully opened.

3. The vacuum tank with a sliding door structure according to claim 2, characterized in that: The guide assembly is arranged at a position close to the opening end of the vacuum tank body.

4. The vacuum tank with a sliding door structure according to claim 1, characterized in that: The vacuum tank body is provided with a plurality of supporting legs, and the guide assembly is arranged on the supporting legs.

5. The vacuum tank with a sliding door structure according to claim 1, characterized in that: The guide assembly is arranged on the support leg near the open end of the vacuum tank body.

6. The vacuum tank with a sliding door structure according to any one of claims 1 to 5, characterized in that: The guide assembly comprises a plurality of pairs of guide wheels, and the guide rod is a rectangular tube.

7. The vacuum tank with a sliding door structure according to any one of claims 1 to 5, characterized in that: The guide rods are provided with two guide rods arranged transversely, and the distance between the guide rods is smaller than the width of the test bench.

8. The vacuum tank with a sliding door structure according to claim 1, characterized in that: The rollers are located on both sides of the end cover bracket, the rollers on both sides are fixed to the wheel axle, and the end cover bracket is provided with a motor for driving the wheel axle to rotate.

9. The vacuum tank with a sliding door structure according to claim 1 or 8, characterized in that: The wheel axle is connected to the end cover bracket through a height adjustment mechanism, and the height adjustment mechanism is used to adjust the height of the roller.

10. The vacuum tank with a sliding door structure according to claim 9, characterized in that: The height adjustment mechanism includes a mounting plate, an adjusting screw, an adjusting nut and a fixing plate. The fixing plate is fixedly connected to the end cover bracket. The mounting plate is connected to the wheel axle through a bearing. The adjusting screw is vertically fixed to the fixing plate. The mounting plate is sleeved on the adjusting screw and the height of the mounting plate is limited by the adjusting nut.

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