Large vacuum container gate walking mechanism

Abstract

The utility model discloses a large vacuum container gate walking mechanism which comprises a lower rail assembly, a lower driving mechanism, a plurality of lower rollers and a power mechanism used for driving the lower rollers, the lower rollers roll on the upper side of the lower rail assembly, and the lower driving mechanism can drive the lower rail assembly to transversely move so as to drive the lower side of a gate to be close to or away from a container. The walking mechanism further comprises a support, an upper track and an upper roller, the upper track is parallelly fixed above the lower track assembly through the support, a rolling groove is formed in the lower side of the upper track in the length direction, the upper roller is installed on the upper side of the gate and located in the rolling groove, the width of the rolling groove is larger than the outer diameter of the upper roller, and the outer side groove wall of the rolling groove abuts against the upper roller. The walking mechanism further comprises an upper driving mechanism arranged on the upper rolling motion path, and the upper driving mechanism can drive the upper side of the gate to be close to or away from the container. The utility model provides a large vacuum container gate walking mechanism which prevents the upper side of a gate from being clamped and ensures stable sliding of the upper side of the gate.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum containers, in particular to a walking mechanism for a large vacuum container door. Background Art

[0002] The large vacuum vessel is a key component of the high-precision remote sensor space environment simulation equipment. It provides a vacuum environment for testing and simulates the vacuum and low-temperature environment of high-precision remote sensors operating in orbit. The door of the ultra-large vacuum vessel is the only moving part and is the core component that determines the vacuum sealing performance. The door has an overall dimension of 14.5m × 13m × 1.542m and weighs 130 tons.

[0003] In order to achieve good vacuum sealing performance, safe and reliable use performance, and a compact and lightweight structural space, the existing patent with application number CN2023106108428 proposes a large vacuum container door walking mechanism, which includes an upper movable rail, a power mechanism, an upper fixed rail and a pulley installed on the upper side of the door. In the initial state, the upper movable rail and the upper fixed rail are coaxial, and the upper movable rail is a continuation of the upper fixed rail. The pulley on the upper side of the door is located on the lower side of the upper fixed rail. When the door moves, the pulley moves to the upper movable rail through the upper fixed rail. At this time, the door corresponds to the door opening position of the container, and the power mechanism drives the upper movable rail close to or away from the container to realize opening and closing of the door.

[0004] The existing walking mechanism needs to frequently move the upper moving rail. Over time, the gap between the upper moving rail and the upper fixed rail is likely to become larger or even misaligned. When the gate is moving, the upper pulley of the gate is likely to get stuck between the upper moving rail and the upper fixed rail, affecting the normal use of the container. Utility Model Content

[0005] In order to solve the defect that the pulley on the upper side of the gate is easily stuck in the existing walking mechanism, the utility model proposes a walking mechanism for the gate of a large vacuum container, which prevents the upper side of the gate from getting stuck and ensures stable sliding of the upper side of the gate.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A walking mechanism for a large vacuum container door, comprising a lower track assembly, a lower driving mechanism, a plurality of lower rollers mounted on the lower side of the door, and a power mechanism for driving the lower rollers, wherein the lower rollers roll on the upper side of the lower track assembly, and the lower driving mechanism can drive the lower track assembly to move laterally to drive the lower side of the door closer to or away from the container, the walking mechanism also comprises a bracket, an upper track, and an upper roller, the upper track is fixed parallel to the upper side of the lower track assembly through the bracket, a rolling groove is provided on the lower side of the upper track along the length direction, the upper roller is mounted on the upper side of the door and is located in the rolling groove, the width of the rolling groove is greater than the outer diameter of the upper roller, and its outer groove wall is against the upper roller, the walking mechanism also comprises an upper driving mechanism arranged on the upper rolling motion path, and the upper driving mechanism can drive the upper side of the door closer to or away from the container.

[0008] Through the above arrangement, when the door is moving, the upper roller on the upper side moves along the outer wall of the rolling groove, the movement is smoother, the upper side of the door is not easy to get stuck, and the smoothness of the door movement is improved. The width of the rolling groove is greater than the outer diameter of the upper roller, so that the upper drive mechanism can drive the upper side of the door to move toward the container to close the container, or drive the door away from the container to open the container.

[0009] Furthermore, a connecting column is vertically fixedly connected to the upper side of the gate, and the upper roller is coaxially rotatably connected to the upper end of the connecting column.

[0010] Through the above arrangement, the upper roller is installed on the upper side of the gate through the connecting column.

[0011] Furthermore, the upper driving mechanism includes an external linear drive and an internal linear drive. The external linear drive is installed on the outside of the upper track, and the output end faces the container, and is used to push the upper side of the gate to move toward the container. The internal linear drive is installed on the upper side of the container, and the output end faces the gate, and is used to push the upper side of the gate away from the container. When the gate and the container are in corresponding positions, the connecting column is located between the internal linear drive and the external linear drive.

[0012] Through the above arrangement, the outer linear drive is used to drive the door to move sideways toward the container, and the inner linear drive is used to drive the door away from the container; the connecting column bears the force of the inner and outer linear drives to prevent the door from being deformed by pressure and affecting the sealing performance

[0013] Furthermore, reinforcing ribs are fixedly connected between the connecting column and the gate.

[0014] Through the above arrangement, the strength of the connecting column is increased.

[0015] Furthermore, the lower track assembly includes multiple fixed parts and multiple movable parts arranged along a straight line. The fixed parts are fixed on the ground, and the movable parts can move laterally under the action of the lower driving mechanism. When the door corresponds to the container position, the lower roller is located on the movable part.

[0016] Through the above arrangement, the lower driving mechanism drives the lower side of the gate and the lower roller on the lower side to move by driving the moving part.

[0017] Furthermore, a guide rail perpendicular to the moving part is provided on the ground, a steel bar is welded to the lower end of the guide rail, the steel bar is pre-buried in the ground, and the moving part is slidably connected to the guide rail.

[0018] Through the above arrangement, the moving part can slide stably on the ground through the guide rail, and the pre-buried steel bars can increase the stability of the guide rail.

[0019] Furthermore, the walking mechanism also includes multiple sets of guide mechanisms, which include a mounting column installed on the lower side of the gate, and two guide wheels rotatably connected to the lower end of the mounting column, and the two guide wheels are located on opposite sides of the lower track assembly.

[0020] Through the above arrangement, the stability of the lower side of the gate on the lower track assembly is further increased.

[0021] Furthermore, the upper driving mechanism includes an L-shaped part fixedly connected to the inner side of the connecting column, and a push-pull cylinder installed on the upper side of the container. A downward-opening groove is formed between the L-shaped part and the connecting column. The output end of the push-pull cylinder is fixedly connected to a flange. When the position of the door corresponds to that of the container, the upper side of the flange is embedded in the groove.

[0022] With the above arrangement, only one power source is needed to drive the upper side of the gate to move inward or outward. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the walking mechanism of the embodiment.

[0024] Figure 2 for Figure 1 Enlarged view of point A.

[0025] Figure 3 It is a side view of the walking mechanism of the embodiment.

[0026] Figure 4 for Figure 3 Enlarged view of point B.

[0027] Figure 5 for Figure 3 Enlarged view of point C.

[0028] Figure 6 Schematic diagram of an upper driving mechanism according to another embodiment. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0030] like Figures 1 to 5As shown, a walking mechanism for a large vacuum container door includes a lower track assembly 3, a lower driving mechanism 4, a plurality of lower rollers 6 installed on the lower side of the door 5, and a power mechanism 7 for driving the lower rollers 6. The lower rollers 6 roll on the upper side of the lower track assembly 3, and the lower driving mechanism 4 can drive the lower track assembly 3 to move laterally to drive the lower side of the door 5 to approach or move away from the container 8. The walking mechanism also includes a bracket 9, an upper track 10, and an upper roller 11. The upper track 10 is fixed parallel to the upper side of the lower track assembly 3 through the bracket 9. A rolling groove 12 is provided on the lower side of the upper track 10 along the length direction. The upper roller 11 is installed on the upper side of the door 5 and is located in the rolling groove 12. The width of the rolling groove 12 is greater than the outer diameter of the upper roller 11, and its outer groove wall is against the upper roller 11. The walking mechanism also includes an upper driving mechanism 13 arranged on the upper rolling motion path. The upper driving mechanism 13 can drive the upper side of the door 5 to approach or move away from the container 8.

[0031] Through the above arrangement, when the gate 5 is moving, the upper roller 11 on the upper side moves along the outer groove wall of the rolling groove 12, the movement is smoother, the upper side of the gate 5 is not easy to get stuck, and the smoothness of the movement of the gate 5 is improved. The width of the rolling groove 12 is greater than the outer diameter of the upper roller 11, so that the upper driving mechanism 13 can drive the upper side of the gate 5 to move toward the container 8 to close the container 8, or drive the gate 5 away from the container 8 to open the container 8.

[0032] The lower track assembly 3, the lower drive mechanism 4 and the power mechanism 7 of the present application can refer to the existing walking mechanism, such as the walking mechanism of application number CN2023106108428, which will not be described in detail. The present application has two lower rollers 6, which are respectively arranged at the front and rear ends of the lower side of the gate 5. Figure 1 The front and rear directions of the walking mechanism are indicated in the figure. The lower track assembly 3 and the upper track 10 both extend forward and backward. The bracket 9 is basically a door-shaped frame, and its two ends are respectively located at the front and rear sides of the lower track assembly 3. The upper track 10 is installed on the lower side of the bracket 9. As an implementation method, the upper track 10 includes a top plate 101, an H-shaped steel and a limit plate 102. Figure 4 The top plate 101 is mounted on the lower side of the bracket 9 by fasteners. The H-shaped steel includes a U-shaped portion 103 and a limiting portion 104. The cross section of the U-shaped portion 103 is U-shaped, and the opening is fixedly connected to the lower side of the top plate 101 upward. The limiting portion 104 is fixedly connected to the outer side of the lower side of the U-shaped. The cross section of the entire H-shaped steel is an inverted H-shape. The limiting plate 102 is located on the inner side of the H-shaped steel and is fixedly connected to the lower side of the top plate 101. The above-mentioned rolling groove 12 is formed between the limiting portion 104 and the limiting plate 102. Figure 3The inner and outer directions of the walking mechanism are shown in the figure. Specifically, the side of the door leaf close to the container 8 is the inner side, and the opposite side is the outer side. The weight of the door 5 of this application is more than 80t. In the initial state, the center of the door 5 is slightly outward. Under the action of gravity, the upper roller 11 is against the inner side of the limit part 104. When the container 8 needs to be closed, the power mechanism 7 drives the lower roller 6 to move forward along the lower track assembly 3 and approach the container 8. When the position of the door 5 corresponds to that of the container 8, the upper roller 11 moves along the rolling groove 12 to the upper drive mechanism 13, and the lower drive mechanism 4 drives the lower track assembly 3 to move horizontally, so as to drive the lower side of the door 5 and the lower roller 6 on the lower side to approach the container 8. At the same time, the upper drive mechanism 13 drives the upper side of the gate 5 synchronously toward the container 8. Since the width of the rolling groove 12 is greater than the outer diameter of the upper roller 11, the upper roller 11 moves synchronously with the upper side of the gate 5, disengaging from the outer groove wall of the rolling groove 12 and moving inward, that is, the upper roller 11 disengages from the limit portion 104 and moves toward the limit plate 102 until the gate 5 closes the container 8. When it is necessary to open the container 8, the upper driving mechanism 13 drives the upper side of the gate 5 outward, while the lower driving mechanism 4 drives the lower track assembly 3 connected to the lower side of the gate 5 and the lower roller 6 on the lower side to move outward, so that the gate 5 is disengaged from the container 8. Then, under the action of the power mechanism 7, the gate 5 moves backward along the lower track assembly 3 and the upper track 10, away from the container 8. As an implementation method, the power mechanism 7 can be set as a rotating device such as a servo motor.

[0033] As an implementation method, a connecting column 14 is vertically fixedly connected to the upper side of the gate 5, and the upper roller 11 is coaxially rotatably connected to the upper end of the connecting column 14.

[0034] Through the above arrangement, the upper roller 11 is installed on the upper side of the gate 5 through the connecting column 14.

[0035] As an implementation method, the upper driving mechanism 13 includes an external linear drive 131 and an internal linear drive 132. The external linear drive 131 is installed on the outside of the upper rail 10, and the output end faces the container 8, and is used to push the upper side of the gate 5 to move toward the container 8. The internal linear drive 132 is installed on the upper side of the container 8, and the output end faces the gate 5, and is used to push the upper side of the gate 5 away from the container 8. When the gate 5 and the container 8 are in corresponding positions, the connecting column 14 is located between the inner linear drive 132 and the outer linear drive 131.

[0036] Through the above-mentioned arrangement, the outer linear drive 131 is used to drive the upper side of the door 5 to move toward the container 8, and the inner linear drive 132 is used to drive the door 5 away from the container 8; the connecting column 14 is used to bear the force of the inner linear drive 132 and the outer linear drive 131 to prevent the door 5 from being compressed and deformed, affecting the sealing performance. The outer linear drive 131 and the inner linear drive 132 of the present application can adopt the form of a screw rod structure, an oil cylinder, an air cylinder, etc. The outer linear drive 131 and the inner linear drive 132 of the present application are coaxially arranged horizontally and perpendicular to the upper rail 10. The output ends of the outer linear drive 131 and the inner linear drive 132 are opposite, and there is a gap between them. When the door 5 moves to the container 8, the connecting column on the upper side of the door 5 is located between the outer linear drive 131 and the inner linear drive 132, and will not interfere with the outer linear drive 131 and the inner linear drive 132. Figure 4 As shown, the outer linear drive 131 is extended and the inner linear drive 132 is shortened. The outer linear drive 131 pushes the door 5 to move sideways toward the container 8 through the connecting column. When the door 5 needs to be opened, the inner linear drive 132 is extended and the outer linear drive 131 is shortened, and the inner linear drive 132 pushes the door 5 away from the container 8.

[0037] As an implementation method, a reinforcing rib 15 is fixedly connected between the connecting column 14 and the gate 5 .

[0038] Through the above arrangement, the strength of the connecting column 14 is increased.

[0039] As an implementation method, the lower track assembly 3 includes multiple fixed parts 31 and multiple movable parts 32 arranged along a straight line. The fixed part 31 is fixed on the ground, and the movable part 32 can move laterally under the action of the lower driving mechanism 4. When the gate 5 corresponds to the position of the container 8, the lower roller 6 is located on the movable part 32.

[0040] Through the above arrangement, the lower driving mechanism 4 drives the lower side of the gate 5 and the lower roller 6 on the lower side to move by driving the moving portion 32 .

[0041] In the present application, the cross-sections of the fixed portion 31 and the movable portion 32 can refer to the rails. In the initial state, the movable portion 32 and the fixed portion 31 are coaxially arranged so that the lower roller 6 can stably move back and forth between the fixed portion 31 and the movable portion 32. When the lower roller 6 moves to the movable portion 32, the lower driving mechanism 4 can be a device such as an air cylinder, an oil cylinder, or a screw structure, which can drive the movable portion 32 to approach or move away from the container 8 in the vertical direction.

[0042] As an implementation method, a guide rail 16 perpendicular to the moving part 32 is provided on the ground, a steel bar 17 is welded to the lower end of the guide rail 16 , and the steel bar 17 is pre-buried in the ground, and the moving part 32 is slidably connected to the guide rail 16 .

[0043] Through the above arrangement, the moving part 32 can slide stably on the ground through the guide rail 16 , and the pre-buried steel bars 17 can increase the stability of the guide rail 16 .

[0044] As an implementation method, the walking mechanism also includes multiple sets of guide mechanisms 18, which include a mounting column 181 installed on the lower side of the gate 5, and two guide wheels 182 rotatably connected to the lower end of the mounting column 181, and the two guide wheels 182 are located on opposite sides of the lower track assembly 3.

[0045] Through the above arrangement, the stability of the lower side of the gate 5 on the lower track assembly 3 is further increased.

[0046] like Figure 6 As shown, in another embodiment, the upper driving mechanism 13 includes an L-shaped member 19 fixedly connected to the inner side of the connecting column 14, and a push-pull cylinder 20 installed on the upper side of the container 8. A downward-opening groove 21 is formed between the L-shaped member 19 and the connecting column 14. The output end of the push-pull cylinder 20 is fixedly connected to a flange 22. When the positions of the door 5 and the container 8 correspond, the upper side of the flange 22 is embedded in the groove 21.

[0047] Through the above arrangement, only one power source is needed to drive the upper side of the gate 5 to move inward or outward.

[0048] The output end of the push-pull cylinder 20 of the present application is horizontal and perpendicular to the upper track 10, and the upper side of the flange 22 protrudes from the output end of the push-pull cylinder 20. When the door 5 moves to the corresponding position of the container 8, the upper side of the flange 22 is embedded in the groove 21. When the push-pull cylinder 20 is shortened, the flange 22 pulls the upper side of the door 5 toward the container 8 through the L-shaped part 19. In addition, when the door 5 needs to be opened, the push-pull cylinder 20 extends to push the door 5 away from the container 8, and the upper roller 11 on the upper side of the door 5 and the container 8 are against the outer groove wall of the rolling groove 12.

[0049] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A large vacuum container door walking mechanism, characterized in that: The car is mounted on a top of the vehicle and is located in a region of the vehicle body that is located adjacent to the vehicle seat, and the vehicle seat is located adjacent to the vehicle seat, and the vehicle seat is located adjacent to the vehicle seat.

2. A large vacuum container door travel mechanism according to claim 1, characterized in that: A connecting column is vertically fixedly connected to the upper side of the gate, and the upper roller is coaxially rotatably connected to the upper end of the connecting column.

3. A large vacuum container door travel mechanism according to claim 2, characterized in that: The upper driving mechanism includes an outer linear drive and an inner linear drive. The outer linear drive is installed on the outer side of the upper track, and the output end faces the container, and is used to push the upper side of the gate to move toward the container. The inner linear drive is installed on the upper side of the container, and the output end faces the gate, and is used to push the upper side of the gate away from the container. When the gate and the container are in corresponding positions, the connecting column is located between the inner linear drive and the outer linear drive.

4. A large vacuum container door travel mechanism according to claim 3, characterized in that: A reinforcing rib is fixedly connected between the connecting column and the gate.

5. The large vacuum container door travel mechanism according to claim 1, characterized in that: The lower track assembly includes multiple fixed parts and multiple movable parts arranged in a straight line. The fixed parts are fixed on the ground, and the movable parts can move laterally under the action of the lower driving mechanism. When the gate corresponds to the position of the container, the lower roller is located on the movable part.

6. A large vacuum container door travel mechanism according to claim 5, characterized in that: A guide rail perpendicular to the moving part is arranged on the ground, a steel bar is welded to the lower end of the guide rail, the steel bar is pre-buried in the ground, and the moving part is slidably connected to the guide rail.

7. A large vacuum container door travel mechanism according to claim 6, characterized in that: The walking mechanism also includes multiple sets of guide mechanisms, which include a mounting column installed on the lower side of the gate and two guide wheels rotatably connected to the lower end of the mounting column. The two guide wheels are located on opposite sides of the lower track assembly.

8. The large vacuum container door travel mechanism according to claim 2, characterized in that: The upper driving mechanism includes an L-shaped part fixedly connected to the inner side of the connecting column, and a push-pull cylinder installed on the upper side of the container. A downward-opening groove is formed between the L-shaped part and the connecting column. The output end of the push-pull cylinder is fixedly connected to a flange. When the position of the door corresponds to that of the container, the upper side of the flange is embedded in the groove.

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