Bottom lifting device for maintenance of mining hydraulic support

Abstract

The utility model relates to the technical field of bottom lifting devices, and discloses a bottom lifting device for maintenance of a mining hydraulic support, which comprises a hydraulic rod, a hook is fixedly connected to the outer side of the upper end of the hydraulic rod, support components are arranged on two sides of the hydraulic rod, and a rotating component is rotatably connected to the outer side of one end of each support component. Then the supporting assembly is pulled open under the assistance of the rotating assembly, then the moving assembly is pushed to drive the hydraulic rod to move under the assistance of the rolling assembly, and when the moving assembly reaches a certain position, the hydraulic rod is rotated to be upright, and then the top end of the hydraulic rod is inserted into the supporting assembly; then one end of the clamping assembly is inserted into the hook to limit the hydraulic rod, then the hydraulic rod can be started to extend to drive the supporting assembly to lift the bottom of the hydraulic support under the assistance of the rotating assembly, the bottom lifting device can be sheltered and stored after being used, and then the occupied space area of the bottom lifting device is reduced; and carrying is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bottom lifting devices, and in particular to a bottom lifting device for repairing a mining hydraulic support. Background Art

[0002] The bottom lifting device for repairing mining hydraulic supports is a device used to lift the hydraulic supports during mining when the hydraulic supports are damaged and need repair. The bottom lifting device is usually called a jack.

[0003] After searching, Chinese application number CN201220427841.7 proposes a bottom lifting device for a hydraulic support for mining, including a bottom lifting cylinder, and a pump station is connected to the bottom lifting cylinder. The bottom lifting cylinder is in two sets, and the two sets of lifting cylinders are synchronously extended and retracted and symmetrically distributed about the axis of the hydraulic support. The cylinder seat of each set of lifting cylinders is hinged on the hydraulic support, and a connecting rod is hinged at the other end. The middle part of the connecting rod is hinged, and the other end of the connecting rod faces the bottom surface. The bottom lifting cylinder drives the connecting rod to move: when the lifting cylinder is extended, the connecting rod is pressed down toward the bottom surface; when the lifting cylinder is retracted, the connecting rod is away from the bottom surface. The above-mentioned prior art proposes that the structure of the bottom lifting jack is simple by using the lifting cylinder, hydraulic support and connecting rod, which is convenient for subsequent maintenance and improves the bottom lifting distance.

[0004] The above-mentioned existing technology can optimize the bottom lifting structure, improve the convenience of subsequent maintenance, and increase the bottom lifting distance, which can effectively improve the convenience of using the bottom lifting device. However, the bottom lifting device is generally an integrated setting, and the parts are fixed and installed by welding or threading, which makes it inconvenient to fold the bottom lifting device when not in use, resulting in the bottom lifting device occupying a large storage space, and a large-capacity storage box is needed for storage. Utility Model Content

[0005] The utility model aims to provide a bottom lifting device for repairing a mining hydraulic support, so as to solve the problem in the prior art that the bottom lifting device for repairing a mining hydraulic support is inconvenient to fold and place when not in use, thereby reducing the storage space.

[0006] The utility model provides the following technical solution: a bottom lifting device for repairing a hydraulic support for a mine, comprising a hydraulic rod, a hook fixedly connected to the outer side of the upper end of the hydraulic rod, and support assemblies are arranged on both sides of the hydraulic rod, a rotating assembly is rotatably connected to the outer side of one end of the support assembly, and a moving assembly is rotatably connected to the lower side of the hydraulic rod, rolling assemblies are rotatably connected to the inner sides of both ends of the moving assembly, and a positioning assembly is rotatably connected to the outer side of one end of the support assembly away from the rotating assembly, and positioning assemblies are fixedly connected to both sides of the lower end of the hydraulic rod.

[0007] As a preferred embodiment of the above technical solution, the support assembly includes a first support plate arranged on the outer side of the lower end of the hydraulic rod, and a second support plate arranged on the outer side of the upper end of the hydraulic rod. A clamping ring is fixedly connected to the lower side of one end of the second support plate close to the hydraulic rod, and the inner side of the lower end of the clamping ring is sleeved on the outer side of the hydraulic rod.

[0008] As a preferred embodiment of the above technical solution, the rotating assembly includes a first rotating rod rotatably connected to one end of the first support plate away from the hydraulic rod, and the first rotating rod is rotatably connected to one end of the first support plate away from the first rotating rod, and the second rotating rod is rotatably connected to the second support plate at one end away from the first rotating rod.

[0009] As a preferred embodiment of the above technical solution, the moving component includes a slider rotatably connected to the lower end of the hydraulic rod, and both ends of the slider are inserted and slid in the first support plate, a first spring is fixedly connected to one side of the slider, and the end of the first spring away from the slider is fixedly connected to the first support plate.

[0010] As a preferred embodiment of the above technical solution, the rolling assembly includes rollers inserted into both ends of the slider, and positioning rods are fixedly connected to both sides of the rollers, and the side of the positioning rods away from the rollers is rotatably connected to the slider.

[0011] As a preferred embodiment of the above technical solution, the locking assembly includes a rotating plate rotatably connected to the outer side of one end of the second supporting plate away from the second rotating rod, and an insertion rod is inserted into the inner side of the end of the rotating plate away from the second supporting plate, a second spring is fixedly connected to the outer side of one end of the insertion rod close to the second supporting plate, and the end of the second spring away from the insertion rod is fixedly connected to the rotating plate, a fixed plate is fixedly connected to the side of the insertion rod away from the second spring, and a locking rod is fixedly connected to the side opposite to the fixed plate, and the outer side of the locking rod is inserted into the inner side of the hook.

[0012] As a preferred embodiment of the above technical solution, the positioning assembly includes connecting plates fixedly connected to both sides of the lower end of the hydraulic rod, and a clamping plate is fixedly connected to the lower side of one end of the connecting plate away from the hydraulic rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The bottom lifting device for the maintenance of a mining hydraulic support, when in use, first toggles the positioning assembly, then pulls the support assembly apart with the assistance of the rotating assembly, then pushes the moving assembly to drive the hydraulic rod to move with the assistance of the rolling assembly, when the moving assembly reaches a certain position, the hydraulic rod is rotated to make it stand upright and the top end is inserted into the support assembly, then one end of the positioning assembly is inserted into the hook to restrict the hydraulic rod, then the hydraulic rod can be started to extend to drive the support assembly to lift the bottom of the hydraulic support with the assistance of the rotating assembly, after the later use is finished, first toggles the positioning assembly to divert it from the hook, then pushes the hydraulic rod back to its original position under the elastic potential energy of the moving assembly, then rotates the hydraulic rod to make it parallel to the support assembly, and finally the positioning assembly is sleeved on the outside of the support assembly to restrict it, so that the bottom lifting device can be shielded and stored after use, thereby reducing the space area occupied by it, making it more convenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a bottom lifting device for repairing a mining hydraulic support;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of a rolling assembly of a bottom lifting device for maintenance of a mining hydraulic support;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of a mobile assembly of a bottom lifting device for maintenance of a mining hydraulic support;

[0018] Figure 4 The present invention is a schematic diagram of the cross-sectional structure of a clamping assembly of a bottom lifting device for repairing a mining hydraulic support.

[0019] In the figure: 1. hydraulic rod; 11. hook; 2. first support plate; 21. second support plate; 22. snap ring; 3. first rotating rod; 31. second rotating rod; 4. slider; 41. first spring; 5. roller; 51. positioning rod; 6. rotating plate; 61. plug rod; 62. second spring; 63. fixing plate; 64. clamping rod; 7. connecting plate; 71. clamping plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] like Figure 1-4As shown, the utility model provides a technical solution: a bottom lifting device for the maintenance of a hydraulic support for a mine, comprising a hydraulic rod 1, a hook 11 is fixedly connected to the outer side of the upper end of the hydraulic rod 1, and support components are arranged on both sides of the hydraulic rod 1, a rotating component is rotatably connected to the outer side of one end of the support component, and a moving component is rotatably connected to the lower side of the hydraulic rod 1, rolling components are rotatably connected to the inner sides of both ends of the moving component, and a positioning component is rotatably connected to the outer side of one end of the support component away from the rotating component, and positioning components are fixedly connected to the two sides of the lower end of the hydraulic rod 1. When in use, the positioning component is first toggled, and then the support component is pulled open with the assistance of the rotating component, and then the moving component is pushed to drive the hydraulic rod 1 to move with the assistance of the rolling component. When the moving component When the component reaches a certain position, the hydraulic rod 1 is rotated to make it stand upright and the top end is inserted into the supporting assembly. Then, one end of the positioning assembly is inserted into the hook 11 to restrict the hydraulic rod 1. Then, the hydraulic rod 1 can be started to extend to drive the supporting assembly to lift the bottom of the hydraulic support with the assistance of the rotating assembly. After the later use, the positioning assembly is first moved to separate it from the hook 11, and then the hydraulic rod 1 is pushed back to its position under the elastic potential energy of the moving assembly. Then, the hydraulic rod 1 is rotated to make it parallel to the supporting assembly. Finally, the positioning assembly is placed on the outside of the supporting assembly to restrict it. After use, the bottom lifting device can be covered and stored, thereby reducing the space it occupies, making it more convenient to carry.

[0022] like Figure 1-4 As shown, the support assembly includes a first support plate 2 arranged on the outer side of the lower end of the hydraulic rod 1, and a second support plate 21 is arranged on the outer side of the upper end of the hydraulic rod 1. A clamping ring 22 is fixedly connected to the lower side of one end of the second support plate 21 close to the hydraulic rod 1, and the inner side of the lower end of the clamping ring 22 is sleeved on the outer side of the hydraulic rod 1. The first support plate 2 and the second support plate 21 are used to facilitate the limitation of the hydraulic rod 1 and can also assist the hydraulic rod 1 in supporting the hydraulic support.

[0023] like Figure 1-4 As shown, the rotating assembly includes a first rotating rod 3 rotatably connected to one end of the first support plate 2 away from the hydraulic rod 1, and the first rotating rod 3 is rotatably connected to the second rotating rod 31 at one end away from the first support plate 2, and the second rotating rod 31 is rotatably connected to the second support plate 21 at one end away from the first rotating rod 3. When the first support plate 2 and the second support plate 21 move, they are restricted by the connection between the first rotating rod 3 and the second rotating rod 31.

[0024] like Figure 3As shown, the moving assembly includes a sliding block 4 rotatably connected to the lower end of the hydraulic rod 1, and both ends of the sliding block 4 are inserted and slid in the first support plate 2, a first spring 41 is fixedly connected to one side of the sliding block 4, and the end of the first spring 41 away from the sliding block 4 is fixedly connected in the first support plate 2, the hydraulic rod 1 is pushed to drive the sliding block 4 to move, and the sliding block 4 is moved and inserted into the first support plate 2 to compress the first spring 41, and then the elastic potential energy of the first spring 41 is used to push the sliding block 4 in the opposite direction to drive the hydraulic rod 1 to return to its position, so that the sliding block 4 is used to drive the hydraulic rod 1 to move, thereby facilitating the subsequent folding and placement.

[0025] like Figure 2 As shown, the rolling assembly includes rollers 5 inserted into the two ends of the slider 4, and positioning rods 51 are fixedly connected to the two sides of the roller 5. The positioning rod 51 is rotatably connected to the slider 4 on the side away from the roller 5. When the slider 4 moves, it drives the roller 5 and the positioning rod 51 to move, so that the roller 5 is fitted with the inner wall of the first support plate 2 under the restriction of the positioning rod 51, and the rolling of the roller 5 assists the movement of the slider 4.

[0026] like Figure 4 As shown, the locking assembly includes a rotating plate 6 that is rotatably connected to the outer side of one end of the second support plate 21 away from the second rotating rod 31, and an insert rod 61 is inserted inside the end of the rotating plate 6 away from the second support plate 21, and a second spring 62 is fixedly connected to the outer side of the end of the insert rod 61 close to the second support plate 21, and the end of the second spring 62 away from the insert rod 61 is fixedly connected to the rotating plate 6, and a fixed plate 63 is fixedly connected to the side of the insert rod 61 away from the second spring 62, and a clamping rod 64 is fixedly connected to the side opposite to the fixed plate 63, and the outer side of the clamping rod 64 is inserted into the inner side of the hook 11, and the rotating plate 6 is rotated, and then the fixed plate 63 is pulled to drive the clamping rod 64 to move. After the fixed plate 63 is pulled, the second spring 62 is stretched with the assistance of the insert rod 61, and then the clamping rod 64 is sleeved on the outer side of the hook 11 to perform a secondary clamping of the hydraulic rod 1, so that the elastic potential energy of the second spring 62 can be used to pull the fixed plate 63 and the clamping rod 64, so that the fixed plate 63 and the clamping rod 64 can limit the position of the hydraulic rod 1 or the first support plate 2.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, the positioning assembly includes a connecting plate 7 fixedly connected on both sides of the lower end of the hydraulic rod 1, and a clamping plate 71 is fixedly connected to the lower side of one end of the connecting plate 7 away from the hydraulic rod 1. The connecting plate 7 and the clamping plate 71 are used to clamp and support the lower end of the hydraulic rod 1, so as to improve the stability of the hydraulic rod 1.

[0028] Working principle: When the bottom lifting device is needed to lift the hydraulic support, first, the rotating plate 6 is toggled to drive the fixed plate 63 and the clamping rod 64 to separate from the first support plate 2, and then the second support plate 21 is pulled to make it separate from the first support plate 2 through the rotation of the first rotating rod 3 and the second rotating rod 31, and then the hydraulic rod 1 is pushed to make the hydraulic rod 1 drive the slider 4 to move and insert into the first support plate 2 to compress the first spring 41, and when the slider 4 moves, it simultaneously drives the roller 5 and the positioning rod 51 to move, so that the roller 5 is assisted by the positioning rod 51 and is aligned with the first support plate 2. The inner wall of the support plate 2 is fitted and rolled, and the hydraulic rod 1 is moved with the help of the rolling of the roller 5. After the slider 4 moves to the appropriate position, the hydraulic rod 1 is rotated to be placed vertically with the first support plate 2, and then the second support plate 21 is pressed to move downward to drive the clamping ring 22 to be sleeved on the outer side of the upper end of the hydraulic rod 1 to initially restrict the hydraulic rod 1, and then the rotating plate 6 is rotated, and then the fixed plate 63 is pulled to drive the clamping rod 64 to move. After the fixed plate 63 is pulled, the second spring 62 is stretched with the assistance of the plug rod 61, and then the clamping rod 64 is sleeved on the hook 11, the hydraulic rod 1 is clamped for the second time on the outside. At this time, the connecting plate 7 and the clamping plate 71 support the lower end of the hydraulic rod 1, and then the first support plate 2 and the second support plate 21 are placed on the lower side of the hydraulic support that needs to be lifted, and then the hydraulic rod 1 is started to extend to push the second support plate 21 to extend under the restriction of the first rotating rod 3 and the second rotating rod 31. After the hydraulic rod 1 is extended, the second support plate 21 is pushed upward to achieve the lifting of the hydraulic support. After use, the hydraulic rod 1 is started to retract to drive the second support plate 21 to return to its original position, and then the first support plate 2 and the second support plate 21 are taken out, and then the rotating plate 6 is toggled to drive the clamping rod 64 to separate from the hook 11, and then the hydraulic rod 1 is rotated and the second support plate 21 is pulled to drive the clamping ring 22 to move up to separate the hydraulic rod 1 from the clamping ring 22, and then the hydraulic rod 1 is rotated to be parallel to the first support plate 2, and at this time, the elastic potential energy of the first spring 41 is used to push the slider 4 to drive the hydraulic rod 1 to return, and finally the rotating plate 6 is rotated to drive the fixed plate 63 and the clamping rod 64 to be sleeved on the outside of one end of the first support plate 2 to clamp it.

[0029] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A bottom lifting device for maintenance of a mining hydraulic support, comprising a hydraulic rod (1), characterized in that: A hook (11) is fixedly connected to the outer side of the upper end of the hydraulic rod (1), and support components are arranged on both sides of the hydraulic rod (1), one end of the support component is rotatably connected to the outer side of the rotating component, and the lower side of the hydraulic rod (1) is rotatably connected to the moving component, the inner sides of both ends of the moving component are rotatably connected to the rolling component, and the outer side of one end of the support component away from the rotating component is rotatably connected to the positioning component, and the lower ends of the hydraulic rod (1) are fixedly connected to the positioning components.

2. The bottom lifting device for maintenance of a mining hydraulic support according to claim 1 is characterized in that: The support assembly comprises a first support plate (2) arranged on the outer side of the lower end of the hydraulic rod (1), and a second support plate (21) arranged on the outer side of the upper end of the hydraulic rod (1); a clamping ring (22) is fixedly connected to the lower side of one end of the second support plate (21) close to the hydraulic rod (1), and the inner side of the lower end of the clamping ring (22) is sleeved on the outer side of the hydraulic rod (1).

3. The bottom lifting device for maintenance of a mining hydraulic support according to claim 2 is characterized in that: The rotating assembly comprises a first rotating rod (3) rotatably connected to one end of the first supporting plate (2) away from the hydraulic rod (1), and the first rotating rod (3) is rotatably connected to one end of the first supporting plate (2) away from the first rotating rod (3), and the second rotating rod (31) is rotatably connected to one end of the second supporting plate (21) away from the first rotating rod (3).

4. The bottom lifting device for maintenance of a mining hydraulic support according to claim 2 is characterized in that: The moving assembly comprises a slider (4) rotatably connected to the lower end of the hydraulic rod (1), and both ends of the slider (4) are inserted and slidably arranged in the first support plate (2), one side of the slider (4) is fixedly connected to a first spring (41), and one end of the first spring (41) away from the slider (4) is fixedly connected in the first support plate (2).

5. The bottom lifting device for maintenance of a mining hydraulic support according to claim 4 is characterized in that: The rolling assembly comprises rollers (5) inserted into the two ends of a slider (4), and positioning rods (51) are fixedly connected to both sides of the roller (5), and the side of the positioning rod (51) away from the roller (5) is rotatably connected to the slider (4).

6. The bottom lifting device for maintenance of a mining hydraulic support according to claim 3 is characterized in that: The locking assembly comprises a rotating plate (6) rotatably connected to the outer side of one end of the second support plate (21) away from the second rotating rod (31), and an insertion rod (61) is inserted into the inner side of the end of the rotating plate (6) away from the second support plate (21), a second spring (62) is fixedly connected to the outer side of one end of the insertion rod (61) close to the second support plate (21), and the end of the second spring (62) away from the insertion rod (61) is fixedly connected to the rotating plate (6), a fixed plate (63) is fixedly connected to the side of the insertion rod (61) away from the second spring (62), and a locking rod (64) is fixedly connected to the side opposite to the fixing plate (63), and the outer side of the locking rod (64) is inserted into the inner side of the hook (11).

7. The bottom lifting device for maintenance of a mining hydraulic support according to claim 1 is characterized in that: The positioning assembly comprises connecting plates (7) fixedly connected to both sides of the lower end of the hydraulic rod (1), and a clamping plate (71) is fixedly connected to the lower side of one end of the connecting plate (7) away from the hydraulic rod (1).

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