Vacuum tank with sliding door structure

Abstract

The application discloses a vacuum tank with a translation door structure, which comprises a vacuum tank body, a vacuum tank end cover and an end cover support, the bottom of the end cover support is provided with a roller, a test bench is fixed on the vacuum tank end cover, a guide rod extending in the axial direction of the vacuum tank body is arranged on the end cover support, the guide rod is located below the test bench, a guide assembly is arranged below the vacuum tank body, and the guide rod is guided in the axial direction parallel to the vacuum tank body by the guide assembly when the end cover support moves. The end cover support is guided without a ground guide rail, and the knocking problem is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a vacuum tank, belonging to the technical field of physical experiment equipment. BACKGROUND

[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 tank body through various hinges, and a rotary door opening mode is adopted. A large vacuum tank adopts an axial translation mode to open and close the door structure, and especially for a test table connected to the end cover of the vacuum tank, the door is opened through the axial translation mode, and the test table is also pulled out at the same time, thereby facilitating various operations. Figure 1 , Figure 2 As shown in the drawings, since the end cover 100 of the vacuum tank, the test table 200 and the test equipment have a large overall mass and a high center of gravity, in order to ensure stability, the bracket 300 for pushing and pulling the end cover 100 of the vacuum tank is made large, the bottom of the bracket 300 is provided with rollers 400, the bottom surface is provided on a track 500 matched with the rollers 400, the distance between the rollers 400 is greater than the width of the test table 200, and the distance between the corresponding ground tracks 500 is also greater than the width of the test table 200. In order not to damage the ground, the track is raised above the ground, and when the test personnel need to operate the test equipment, the track protruding on the ground is easy to cause stumbling. SUMMARY

[0003] In view of the defects of the prior art, the present application provides a vacuum tank with a translation door structure, which solves the problem that the track matched with the rollers of the end cover bracket is raised above the ground and is easy to cause stumbling.

[0004] The technical scheme of the present application is as follows: a vacuum tank with a translation door structure, comprising a vacuum tank body, a vacuum tank end cover and an end cover bracket, the bottom of the end cover bracket is provided with rollers, the vacuum tank end cover is fixed with a test table, the end cover bracket is provided with a guide rod extending in the axial direction of the vacuum tank body, the guide rod is located below the test table, the lower portion of the vacuum tank body is provided with a guide assembly, and the guide assembly guides the guide rod in the axial direction of the vacuum tank body when the end cover bracket moves.

[0005] Further, 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 be closed to fully opened. After the vacuum tank end cover is opened, the front end of the guide rod is still located in the guide assembly, and the guide assembly limits the guide rod, thereby effectively preventing the vacuum tank end cover from tipping over with the end cover bracket.

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

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

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

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

[0010] Further, the guide rod is arranged in two transverse directions, and the distance between the guide rods is less than the width of the test bench.

[0011] Further, the rollers are arranged on both sides of the end cover support, and the rollers on both sides are fixed on the wheel shafts, and the end cover support is provided with a motor for driving the rotation of the wheel shafts.

[0012] Further, the wheel shafts are connected to the end cover support through a height adjusting mechanism, and the height adjusting mechanism is used for adjusting the height of the rollers.

[0013] Further, the height adjusting mechanism comprises a mounting plate, an adjusting screw, an adjusting nut and a fixing plate, the fixing plate is fixedly connected to the end cover support, the mounting plate is connected to the wheel shaft through a bearing, the adjusting screw is vertically fixed to the fixing plate, and 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 technical scheme provided by the application has the following advantages:

[0015] In the application, the guide rod is guided by the guide assembly under the vacuum tank body below the test bench, and the rollers no longer need to be guided by the guide rail, so that the ground guide rail is cancelled and the problem of stumbling is avoided.

[0016] In the open state of the vacuum tank end cover, the front end of the guide rod is pressed by the vacuum tank body, which can effectively prevent the vacuum tank end cover and the end cover support from falling, and can reduce the size of the end cover support. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic view of a vacuum tank with a sliding door structure in the prior art.

[0018] Figure 2 FIG. 2 is a structural schematic view of the end cover and support of the vacuum tank with a sliding door structure in the prior art.

[0019] Figure 3 FIG. 3 is a front structural schematic view of the vacuum tank with a sliding door structure in the embodiment (open door state).

[0020] Figure 4A schematic view of the top structure of the vacuum tank with the sliding door structure of the embodiment (door closed state).

[0021] Figure 5 A schematic view of the top structure of the end cover support of the embodiment.

[0022] Figure 6 A schematic view of the partial front structure of the guide assembly cooperating with the guide rod of the embodiment.

[0023] Figure 7 A schematic view of the partial side structure of the guide assembly cooperating with the guide rod of the embodiment.

[0024] Figure 8 A schematic view of the partial side structure of the end cover support provided with the rollers of the embodiment. DETAILED DESCRIPTION

[0025] The present application is further described in conjunction with the embodiments. It should be understood that these embodiments are only used for illustrating the present application and are not used for limiting the scope of the present application. After reading the description, those skilled in the art can make various modifications of the present application, which fall within the scope defined by the appended claims.

[0026] Please refer to Figure 3 , Figure 4 , the vacuum tank with the sliding door structure of the embodiment includes a vacuum tank body 1, a vacuum tank end cover 2 and an end cover support 3. The vacuum tank end cover 2 is fixed on the end cover support 3, and the vacuum tank is opened and closed by moving the end cover support 3. Specifically, the end cover support 3 drives the vacuum tank end cover 2 to move along the long axis of the vacuum tank body 1. The vacuum tank end cover 2 is fixedly installed with a test bench 4, which is used to place the equipment 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.

[0027] Please refer to Figure 5 , the end cover support 3 is used to support the vacuum tank end cover 2, and the end cover support 3 is provided with rollers 6 driven by a motor 5. In the embodiment, two rollers 6 are provided, and the two rollers 6 are jointly installed on a wheel shaft 7 at both sides of the bottom of the end cover support 3. A first sprocket 8 is installed on the wheel shaft 7. The motor 5 is fixed on the end cover support 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. Thus, the motor 5 drives the two rollers 6 to rotate, thereby moving the end cover support 3.

[0028] The end cover support 3 is provided with guide rods 10 extending in parallel with the axial direction of the vacuum tank body 1, the guide rods 10 are located below the test bench 4, the lower part of the vacuum tank body 1 is provided with a guide assembly 11, the guide rods 10 are guided by the guide assembly 11 in the axial direction parallel to the vacuum tank body 1 when the end cover support 3 moves. In the embodiment, the guide rods 10 are made of rectangular tubes, two guide rods 10 are provided, the distance between the two guide rods 10 is not greater than the width of the test bench 4, as shown in the figure, the distance between the guide rods 10 is the same as the width of the test bench 4, and the two guide rods 10 are used for guiding, which is more stable. Figure 4

[0029] Please refer to Figure 6 , Figure 7 , the guide assembly 11 in the embodiment is installed on the support leg 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 other two are away from the open end of the vacuum tank body 1. The guide assembly 11 is installed on the support leg 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 from closing to fully opening, so that the front end of the guide rod 10 is still in the guide assembly 11 after the vacuum tank end cover 2.

[0030] The guide assembly 11 includes four pairs of guide wheels 11a, two of which are arranged above and below to cooperate with the top and bottom surfaces of the guide rod 10, and the other two are arranged on the left and right to cooperate with the two side surfaces of the guide rod 10. Under the action of the four sets of guide wheels 11a, the guide rod 10 is guided to move in the axial direction parallel to the vacuum tank body 1.

[0031] Please further refer to Figure 8 , since the ground where the vacuum tank is arranged may have unevenness, in order to ensure the smooth movement of the vacuum tank end cover 2, the wheel shaft 7 is connected with the end cover support 3 through a height adjusting mechanism, and the height adjusting mechanism is used to adjust the height of the roller 6. Specifically, the height adjusting 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 with the end cover support 3, the two adjusting screws 13 are vertically fixed to the fixing plate 15 after being inverted, the adjusting nut 14 is arranged on the adjusting screw 13, the horizontal top surface of the mounting plate 12 is sleeved on the adjusting screw 13, and the wheel shaft 7 is connected with the mounting plate 12 through a bearing. By rotating the adjusting nut 14, the position of the adjusting nut 14 on the adjusting screw 13 can be changed, and the mounting plate 12 is limited to the highest movable position by the adjusting nut 14, thereby adjusting the height of the roller 6.

[0032] ​The vacuum tank with the translation door structure of the embodiment is guided by the guide rod 10 when the end cover 2 of the vacuum tank is opened, does not need the ground track, has no problem of stumbling when the personnel operates the test bench 4 equipment, meanwhile, the front end of the guide rod 10 is pressed in the guide assembly 11 by the vacuum tank body 1, the end cover support 3 can be made with smaller size, and the end cover 2 of the vacuum tank cannot be tilted.

Claims

1. A vacuum tank with a translational door structure, comprising a vacuum tank body, a vacuum tank end cover and an end cover support, the bottom of the end cover support is provided with a roller, and a test bench is fixed on the vacuum tank end cover, characterized in that, The end cover support is provided with a guide rod extending in parallel with the axial direction of the vacuum tank body, the guide rod is located below the test bench, the lower part of the vacuum tank body is provided with a guide assembly, the guide assembly comprises a plurality of pairs of guide wheels, the guide rod is guided in the axial direction of the vacuum tank body by the guide assembly when the end cover support moves, the rollers are located on both sides of the end cover support, the rollers on both sides are fixed to the wheel shaft, the end cover support is provided with a motor for driving the wheel shaft to rotate, the wheel shaft is connected to the end cover support through a height adjusting mechanism, and the height adjusting mechanism is used for adjusting the height of the rollers.

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 from being closed to being fully opened.

3. The vacuum tank with a translational door structure according to claim 2, characterized in that, The guide assembly is arranged close to the open end of the vacuum tank body.

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

5. The vacuum tank with a sliding door structure according to claim 4, characterized in that, The guide assembly is arranged on the support legs close to 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 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 rod is provided with two rods arranged transversely, and the distance between the guide rods is less than the width of the test bench.

8. The vacuum tank having a translating door structure according to claim 1, wherein, The height adjusting mechanism comprises a mounting plate, an adjusting screw, an adjusting nut and a fixing plate, the fixing plate is fixedly connected to the end cover support, the mounting plate is connected to the wheel shaft 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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