Mining stand column jack base

Abstract

The utility model belongs to the technical field of mining machinery, and particularly relates to a mining stand column jack base which comprises a frame body, a mounting plate is fixedly connected to the bottom of the outer side wall of the frame body, an electric push rod is fixedly connected to the outer side wall of the frame body, a plurality of sets of screw holes are formed in the side wall of the frame body, the screw holes are distributed in an array shape, and the electric push rod is fixedly connected to the mounting plate. Limiting screws are connected into the screw holes in a threaded mode, and limiting plates are arranged at the ends, located in the frame body, of the limiting screws. The annular plate is arranged in the annular sliding groove in a sliding mode. The bottom of the protective cover plate is fixedly connected with a guide sliding block, and the guide sliding block is arranged in the guide sliding groove in a sliding connection mode. The jack is convenient to mount and protect, the mounting stability of the jack on a hydraulic support is improved, and mineral blocks are prevented from being clamped at the bottom end of the jack; the mounting stability of the jack is improved; and the transmission efficiency of the device is improved, and operation is convenient.

Description

Technical Field

[0001] The present application belongs to the technical field of mining machinery, and in particular relates to a mining column jack base. Background Art

[0002] A jack is a small lifting device that uses a rigid lifting piece as a working device to lift heavy objects within a small stroke of the top support or bottom claws. Jacks are mainly used in factories, mines, transportation and other departments for vehicle repairs and other lifting and supporting work.

[0003] Among the equipment involved in coal mining, column jacks are often used. Column jacks are installed on hydraulic supports, and hydraulic supports are used for coal mining.

[0004] At present, most column jacks on hydraulic supports are directly installed or set with simple bases. These methods are simple to fix, unstable to install, and inconvenient to protect the bottom of the jack. Mineral blocks are easily stuck at the bottom of the jack, causing damage to the equipment.

[0005] Based on this, the present application designs a mining column jack base, the purpose of which is to solve the above-mentioned problems. Utility Model Content

[0006] In view of the above analysis, the embodiment of the utility model aims to provide a mining column jack base to solve the problems proposed in the above background technology, such as simple fixing, unstable installation, inconvenient protection of the bottom end of the jack, and easy jamming of mineral blocks at the bottom of the jack, causing damage to the equipment.

[0007] To achieve the above objectives, the technical solution provided in the embodiments of the present application includes:

[0008] A frame, a mounting plate is fixedly connected to the bottom of the outer wall of the frame, an electric push rod is fixedly connected to the outer wall of the frame, a plurality of groups of screw holes are provided on the side wall of the frame, and the plurality of groups of screw holes are distributed in an array, a limiting screw is screwed in the screw hole, a limiting plate is provided on one end of the limiting screw located in the frame, a guide slot is provided on the top of the frame, an annular slot is provided on the inner wall of the frame, and an anti-rotation socket is provided through the side wall of the frame;

[0009] A circular ring plate, wherein the circular ring plate is slidably disposed in the annular sliding groove, and a lower push rod is fixedly connected to the upper surface of the circular ring plate;

[0010] A protective cover plate, the bottom of which is fixedly connected with a guide slider, the guide slider is slidably connected in the guide slide groove, the bottom of the protective cover plate is fixedly connected with an upper push rod, a connecting rod is rotatably connected between the upper push rod and the lower push rod through a bearing, a pull plate is fixedly connected to the outer wall of the protective cover plate above the electric push rod, and a pull rod is fixedly connected between the bottom surface of the pull plate and the telescopic end of the electric push rod.

[0011] Preferably, a wire hole and a jack fixing hole are provided at the bottom of the frame.

[0012] Preferably, the limiting plate is rotatably connected to the limiting screw via a bearing, and the limiting plate is an arc-shaped plate.

[0013] Preferably, an anti-rotation plug rod is fixedly connected to the lower end of the arc-shaped convex surface of the limiting plate, and the anti-rotation plug rod passes through the anti-rotation plug hole.

[0014] Preferably, the annular slide groove is annularly opened on the inner wall of the frame body, the cross section of the annular slide groove is T-shaped, and the outer end of the circular ring plate is slidably connected in the annular slide groove.

[0015] Preferably, the protective cover plate, the guide slide groove and the lower push rod are each provided with four groups and distributed in an array.

[0016] Preferably, the protective cover plate is fan-shaped.

[0017] Preferably, a sealing gasket is provided on the fan-shaped concave side surface of the protective cover plate.

[0018] Preferably, the connecting rod is located below the protective cover plate.

[0019] Compared with the prior art, the beneficial effects of this application are:

[0020] 1. The utility model cooperates with the frame and the protective cover plate to facilitate installation and protection of the jack, improve the installation stability of the jack on the hydraulic support, and prevent the mineral block from being stuck at the bottom of the jack.

[0021] 2. By setting a limit plate and clamping it on the jack, it is convenient to improve the installation stability of the jack.

[0022] 3. Through the cooperation of the upper push rod, the lower push rod and the circular ring plate, multiple sets of protective cover plates can be moved simultaneously, thereby improving the transmission efficiency of the device and facilitating operation.

[0023] Of course, any product implementing the present application does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0026] Figure 2 It is a schematic diagram of a partially enlarged cross-section structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the top view of the circular ring plate of the utility model;

[0028] Figure 4 This is a schematic diagram of the overall top view structure of the utility model;

[0029] Figure 5 This is a schematic diagram of the position structure of the protective cover plate of the utility model;

[0030] Figure 6 It is a schematic diagram of the structure of the transmission part of the utility model.

[0031] Description of reference numerals:

[0032] 1. Frame; 2. Mounting plate; 3. Electric push rod; 4. Screw hole; 5. Limit screw; 6. Limit plate; 7. Guide slide; 8. Annular slide; 9. Circular plate; 10. Lower push rod; 11. Protective cover; 12. Guide slider; 13. Upper push rod; 14. Connecting rod; 15. Pull plate; 16. Pull rod; 17. Wire hole; 18. Jack fixing hole; 19. Anti-rotation plug rod; 20. Anti-rotation plug hole; 21. Sealing pad; 30. Jack. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that, in the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be combined, separated, interchanged and / or rearranged with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] In the accompanying drawings, the size and relative size of components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments may be implemented differently, a specific process sequence may be performed in a different order than described. For example, two successively described processes may be performed substantially simultaneously or in an order opposite to the order described. In addition, the same reference numerals represent the same components.

[0035] When a component is referred to as being "on" or "over," "connected to," or "coupled to" another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being "directly on," "directly connected to," or "directly coupled to" another component, there are no intervening components. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0036] For descriptive purposes, the present disclosure may use spatially relative terms such as "top", "bottom", "under", "beneath", "under", "lower", "above", "upper", "above", "higher", etc., relative to components to describe the relationship of one component to another (other) components as shown in the accompanying drawings.

[0037] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0038] To facilitate understanding of the embodiments of the present application, further explanation will be given below with reference to specific embodiments in conjunction with the accompanying drawings. The embodiments do not constitute a limitation on the embodiments of the present application.

[0039] This embodiment provides a mining column jack base, such as Figure 1 and Figure 2As shown, a frame 1 is provided, a mounting plate 2 is fixedly connected to the bottom of the outer wall of the frame 1, an electric push rod 3 is fixedly connected to the outer wall of the frame 1, a plurality of sets of screw holes 4 are provided on the side wall of the frame 1, and the plurality of screw holes 4 are arranged in an array, a limiting screw 5 is screwed in the screw hole 4, a limiting plate 6 is provided on one end of the limiting screw 5 located in the frame 1, a guide groove 7 is provided on the top of the frame 1, an annular groove 8 is provided on the inner wall of the frame 1, and an anti-rotation socket 20 is provided through the side wall of the frame 1;

[0040] The circular plate 9 is slidably disposed in the annular chute 8, and a lower push rod 10 is fixedly connected to the upper surface of the circular plate 9;

[0041] A protective cover 11, a guide slider 12 is fixedly connected to the bottom of the protective cover 11, the guide slider 12 is slidably connected in the guide slide groove 7, an upper push rod 13 is fixedly connected to the bottom of the protective cover 11, a connecting rod 14 is rotatably connected between the upper push rod 13 and the lower push rod 10 through a bearing, a pull plate 15 is fixedly connected to the outer wall of the protective cover 11 located above the electric push rod 3, and a pull rod 16 is fixedly connected between the bottom surface of the pull plate 15 and the telescopic end of the electric push rod 3.

[0042] Preferably, if Figure 1 As shown, a wire hole 17 and a jack fixing hole 18 are provided at the bottom of the frame 1 to facilitate the installation and transportation of the jack 30 .

[0043] Preferably, if Figure 1 As shown, the limiting plate 6 is rotatably connected to the limiting screw 5 via a bearing, and the limiting plate 6 is an arc-shaped plate, which is convenient for limiting the lower end of the jack 30 in the frame 1 and improving the installation stability.

[0044] Preferably, if Figure 1 As shown, the lower end of the arc-shaped convex surface of the limit plate 6 is fixedly connected with an anti-rotation plug rod 19, and the anti-rotation plug rod 19 passes through the anti-rotation plug hole 20 to prevent the limit plate 6 from rotating, so that the vertical direction of the concave surface of the limit plate 6 remains unchanged, which is convenient for abutting against the outer wall of the jack 30.

[0045] Preferably, if Figure 2 As shown, the annular groove 8 is annularly opened on the inner wall of the frame 1, and the cross section of the annular groove 8 is T-shaped. The outer end of the circular ring plate 9 is slidably connected in the annular groove 8 to improve the stability of the circular ring plate 9 when rotating.

[0046] Specifically, the protective cover plate 11, the guide slide groove 7 and the lower push rod 10 are all provided in four groups and distributed in an array shape for easy transmission.

[0047] Furthermore, if Figure 4 and Figure 5As shown, the protective cover plate 11 is fan-shaped, which is convenient for shielding the upper part of the frame 1 to prevent mineral blocks from falling near the bottom end of the jack 30 and getting stuck. When multiple groups of protective cover plates 11 are abutted against each other, the inner hole diameter formed is equal to the diameter of the jack 30.

[0048] Furthermore, if Figure 1 As shown, a sealing gasket 21 is provided on the fan-shaped concave side surface of the protective cover plate 11 to improve the sealing between the protective cover plate 11 and the jack 30 and prevent mineral blocks from entering.

[0049] Preferably, if Figure 5 and Figure 6 As shown, the connecting rod 14 is located below the protective cover plate 11 to prevent the connecting rod 14 from being stuck on the side wall of the jack 30.

[0050] A specific application of the present application is: the utility model is suitable for a column jack on a hydraulic support. When in use, the device is installed at a suitable position of the hydraulic support through the mounting plate 2, the telescopic end of the electric push rod 3 is extended, and the upper protective cover plate 11 is driven to move outward through the pull rod 16 and the pull plate 15, and the circular plate 9 is driven to rotate in the annular slide groove 8 through the cooperation of the upper push rod 13, the connecting rod 14 and the lower push rod 10. While the circular plate 9 rotates, the other groups of lower push rods 10 drive the other groups of protective cover plates 11 at the same time through the cooperation of the connecting rod 14 and the upper push rod 13. The frame 1 is moved outward quickly to open the top opening of the frame 1, and then the jack 30 is inserted into the frame 1, and installed and fixed through the wire hole 17 and the jack fixing hole 18, and then the electric push rod 3 is started to shrink, and the upper push rod 13, the connecting rod 14 and the lower push rod 10 cooperate to drive the multiple sets of protective cover plates 11 to move inward at the same time until the sealing gasket 21 abuts against the outer wall of the jack 30. At this time, the inner hole formed by the multiple sets of protective cover plates 11 has the same diameter as the jack 30, which is convenient for protecting the top, and the limit screw 5 is rotated to limit the jack 30.

[0051] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only the specific implementation method of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A mining column jack base, characterized in that: include: A frame, a mounting plate is fixedly connected to the bottom of the outer wall of the frame, an electric push rod is fixedly connected to the outer wall of the frame, a plurality of groups of screw holes are provided on the side wall of the frame, and the plurality of groups of screw holes are distributed in an array, a limiting screw is screwed in the screw hole, a limiting plate is provided on one end of the limiting screw located in the frame, a guide slot is provided on the top of the frame, an annular slot is provided on the inner wall of the frame, and an anti-rotation socket is provided through the side wall of the frame; A circular ring plate, wherein the circular ring plate is slidably disposed in the annular sliding groove, and a lower push rod is fixedly connected to the upper surface of the circular ring plate; A protective cover plate, the bottom of which is fixedly connected with a guide slider, the guide slider is slidably connected in the guide slide groove, the bottom of the protective cover plate is fixedly connected with an upper push rod, a connecting rod is rotatably connected between the upper push rod and the lower push rod through a bearing, a pull plate is fixedly connected to the outer wall of the protective cover plate above the electric push rod, and a pull rod is fixedly connected between the bottom surface of the pull plate and the telescopic end of the electric push rod.

2. The mining column jack base according to claim 1, characterized in that: The bottom of the frame is provided with a wire hole and a jack fixing hole.

3. The mining column jack base according to claim 1, characterized in that: The limiting plate is rotatably connected to the limiting screw via a bearing, and the limiting plate is an arc-shaped plate.

4. The mining column jack base according to claim 3, characterized in that: An anti-rotation plug rod is fixedly connected to the lower end of the arc-shaped convex surface of the limiting plate, and the anti-rotation plug rod passes through the anti-rotation plug hole.

5. The mining column jack base according to claim 1, characterized in that: The annular slide groove is annularly opened on the inner wall of the frame body, the cross section of the annular slide groove is T-shaped, and the outer end of the circular ring plate is slidably connected in the annular slide groove.

6. The mining column jack base according to claim 1, characterized in that: The protective cover plate, the guide slide groove and the lower push rod are all provided in four groups and are distributed in an array.

7. The mining column jack base according to claim 1, characterized in that: The protective cover plate is fan-shaped.

8. The mining column jack base according to claim 7, characterized in that: A sealing gasket is arranged on the fan-shaped concave side surface of the protective cover plate.

9. The mining column jack base according to claim 1, characterized in that: The connecting rod is located below the protective cover plate.

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