Protective device for coal mining tunneling

Abstract

The utility model discloses a protective device for coal mining tunneling, which relates to the technical field of coal mining tunneling, comprises a device main body, a top plate and a swing mechanism arranged on the outer wall of the top plate, and is characterized in that the swing mechanism comprises a rotating component; the rotating assembly comprises a swing rod and a pulling rod, and by arranging the swing rod, when the protection device is used for protecting the coal mining and tunneling process, in order to improve the falling effect on broken stones on a top plate and improve the protection effect in the coal mining and tunneling process, the broken stones can be prevented from falling off after being stacked on the rotating plate; a swing rod rotates to drive a limiting block to slide along the outer wall of a limiting groove, so that a pull rod is driven to rotate, a rotating plate rotates, broken stones on the rotating plate are shaken off, a telescopic rod and a spring are arranged, the rotating plate rotates back to the original position, and when the protection device is used for protecting the coal mining tunneling process, the safety of the coal mining tunneling process is improved. And the control operation of the protection effect in the coal mining tunneling process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining and excavation, in particular to a protective device for coal mining and excavation. Background Art

[0002] Coal mining refers to the process of crushing, cutting, mining and transporting solid minerals to obtain their resource value; tunneling refers to the working method of excavating underground caves in order to develop ore bodies within a mining area or other situations where drilling and blasting work is required. In the protection of coal mining and tunneling, protective devices are often required to perform protective operations during the coal mining and tunneling process.

[0003] For example, application number 202122697894.2 discloses a protective device for coal mining and excavation, including two guide rails, each of which is slidably connected to a slider inside the two guide rails, and three sliders, the tops of the three sliders are fixedly connected to a mounting plate, and a lifting assembly is provided in the middle of the upper surface of the three mounting plates, and the lifting assembly includes a fixed column, a threaded block and a support rod, the lower surface of the fixed column is fixedly connected to the upper surface of the mounting plate, and a threaded groove adapted to the threaded block is provided inside the upper end of the fixed column, the threaded block is threadedly connected to the inside of the threaded groove, and the bottom of the support rod is fixedly connected to the top of the threaded block; the protective device for coal mining and excavation described in this utility model is facilitated to install the protective device and improves installation efficiency through the cooperation of the provided guide rails, sliders, lifting assemblies, telescopic assemblies and protective assemblies.

[0004] However, although this protective device can protect the coal mining and excavation process, it is not very effective in preventing the gravel on the roof from sliding down. When the protective device is used to protect the coal mining and excavation process for a long time, the effect of preventing the gravel on the roof from shaking and falling is not high, which will cause a large amount of gravel to accumulate on the roof, resulting in the roof being unable to bear the pressure and causing the roof to collapse, thereby reducing the protective effect of the coal mining and excavation process.

[0005] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a protective device for coal mining and excavation is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a protective device for coal mining and excavation, so as to solve the problem in the background technology that the effect of the shaking and falling of the gravel on the roof is not high, thereby reducing the protective effect during the coal mining and excavation process.

[0007] To achieve the above-mentioned object, the present utility model provides the following technical solution: a protective device for coal mining and excavation, comprising a device body, a roof, and a swing mechanism provided on the outer wall of the roof, characterized in that the swing mechanism comprises a rotating assembly;

[0008] The outer wall of the limit block is rotatably connected to the swing arm rotatably connected to the outer wall of the rotating plate, and the outer wall of the limit block is rotatably connected to the pulling rod, and the outer wall of the limit block is fixedly connected to the telescopic rod telescopically connected to the outer wall of the fixed rod, and the outer wall of the telescopic rod is sleeved with a spring fixedly connected to the outer wall of the limit block.

[0009] Furthermore, four groups of universal rollers are provided, and the positions of the four groups of universal rollers are distributed around the device body.

[0010] Furthermore, two groups of rotating plates are provided, and the positions of the two groups of rotating plates are symmetrically distributed about the central axis of the device body.

[0011] Furthermore, the outer wall profile of the protective plate is arranged in an arc shape.

[0012] Furthermore, a limiting groove is provided at the connection portion between the outer wall of the fixing rod and the limiting block, and two groups of fixing rods are provided, and the positions of the two groups of fixing rods are symmetrical with respect to the central axis of the fixing box.

[0013] Furthermore, one end of the spring is fixedly connected to the outer wall of the fixing rod.

[0014] Furthermore, the rotation center of the swing rod is arranged to coincide with the rotation center of the pull rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model is provided with a swinging rod. When the protective device is used to protect the coal mining and excavation process, in order to improve the effect of preventing gravel from sliding on the roof and improve the protective effect of the coal mining and excavation process, after the gravel is accumulated on the rotating plate, the swinging rod can be rotated to drive the limit block to slide along the outer wall of the limit groove, thereby driving the pulling rod to rotate, so that the rotating plate rotates, and the gravel on the rotating plate is shaken off. The setting of the telescopic rod and the spring is used to make the rotating plate rotate back to its original position, thereby realizing a control operation to improve the protective effect of the coal mining and excavation process when the protective device is used to protect the coal mining and excavation process.

[0017] 2. The utility model sets a protective plate. When the protective device is used to protect the coal mining and excavation process, in order to improve the protection effect of the rotating shaft and prevent gravel from falling on the rotating shaft, which causes the rotating shaft to be unable to rotate and thus causes the rotating plate to be unable to rotate, a protective plate can be set above the rotating shaft to achieve a control operation to improve the rotation stability of the rotating shaft when the protective device is used to protect the coal mining and excavation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the three-dimensional structure of the device body;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the device body in another direction;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the swing rod and the pull rod in connection;

[0021] Figure 4 It is a three-dimensional structural diagram of the position distribution of the telescopic rod and the spring.

[0022] In the figure: 1. Device body; 11. Universal roller; 12. Top plate; 13. Rotating plate; 14. Protective plate; 15. Rotating shaft; 2. Fixed box; 21. Fixed rod; 22. Swing rod; 23. Limit block; 24. Limit slot; 25. Pull rod; 26. Telescopic rod; 27. Spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example

[0025] like Figures 1-4 As shown, a protective device for coal mining and excavation includes a device body 1, a top plate 12 and a swing mechanism provided on the outer wall of the top plate 12, wherein the swing mechanism includes a rotating assembly;

[0026] The rotating assembly includes a swing rod 22 and a pulling rod 25. The bottom of the device body 1 is movably connected to the universal roller 11. The top of the device body 1 is fixedly connected to the top plate 12. The outer wall of the top plate 12 is rotatably connected to the rotating shaft 15. The outer wall of the rotating shaft 15 is fixedly connected to the rotating plate 13 rotatably connected to the outer wall of the top plate 12. The outer wall of the top plate 12 is fixedly connected to the protective plate 14 located above the rotating shaft 15. The outer wall of the top plate 12 is fixedly connected to the fixed box 2. The inner wall of the fixed box 2 is fixedly connected to the fixed rod 21. The outer wall of the fixed rod 21 is slidably connected to the limiting block 23. The outer wall of the limiting block 23 is rotatably connected to the swing rod 22 rotatably connected to the outer wall of the rotating plate 13. The outer wall of the limiting block 23 is rotatably connected to the pulling rod 25 rotatably connected to the inner wall of the fixed box 2. The outer wall of the limiting block 23 is fixedly connected to the telescopic rod 26 telescopically connected to the outer wall of the fixed rod 21. The outer wall of the telescopic rod 26 is sleeved with a spring 27 fixedly connected to the outer wall of the limiting block 23.

[0027] Furthermore, four groups of universal rollers 11 are provided, and the positions of the four groups of universal rollers 11 are distributed around the device body 1, which is conducive to achieving the control operation of moving the device body 1 by distributing the positions of the four groups of universal rollers 11 around the device body 1.

[0028] Furthermore, two groups of rotating plates 13 are provided, and the position distribution of the two groups of rotating plates 13 is symmetrical about the central axis of the device body 1, which is conducive to achieving the control operation of shaking the gravel to both sides by setting the position distribution of the two groups of rotating plates 13 symmetrical about the central axis of the device body 1.

[0029] Furthermore, the outer wall profile of the protective plate 14 is arranged in an arc shape, which is conducive to achieving a control operation to improve the rotation stability of the rotating shaft 15 through the arrangement of the outer wall profile of the protective plate 14 in an arc shape.

[0030] Furthermore, a limiting groove 24 is provided at the connection portion between the outer wall of the fixing rod 21 and the limiting block 23. Two groups of fixing rods 21 are provided, and the position distribution of the two groups of fixing rods 21 is symmetrical about the central axis of the fixing box 2. The limiting block 23 forms a sliding structure between the swing rod 22 and the limiting groove 24, which is conducive to the rotation of the swing rod 22 to drive the limiting block 23 to slide along the outer wall of the limiting groove 24, thereby realizing the control operation of the rotation of the rotating plate 13.

[0031] Furthermore, one end of the spring 27 is fixedly connected to the outer wall of the fixed rod 21, which is conducive to returning the rotating plate 13 to its original position and achieving the control operation of the swinging of the rotating plate 13.

[0032] Furthermore, the rotation center of the swing rod 22 is arranged to coincide with the rotation center of the pull rod 25, which is conducive to achieving the control operation of synchronous rotation of the pull rod 25 and the swing rod 22 through the arrangement of the rotation center of the swing rod 22 and the rotation center of the pull rod 25.

[0033] Working principle: When using this kind of protective device for coal mining and excavation, first, when the protective device is used to protect the coal mining and excavation process, in order to improve the effect of the sliding of gravel on the top plate 12 and improve the protective effect of the coal mining and excavation process, after the gravel is accumulated on the rotating plate 13, the limit block 23 can be driven to slide along the outer wall of the limit groove 24 by the rotation of the swing rod 22, thereby driving the pulling rod 25 to rotate, so that the rotating plate 13 is rotated, and the gravel on the rotating plate 13 is shaken off, and the rotating plate 13 is rotated back to its original position through the setting of the telescopic rod 26 and the spring 27, thereby realizing the control operation of improving the protective effect of the coal mining and excavation process when the protective device is used to protect the coal mining and excavation process.

[0034] Finally, when the coal mining and excavation process is protected by the protective device, in order to improve the protection effect of the rotating shaft 15 and prevent gravel from falling on the rotating shaft 15, causing the rotating shaft 15 to be unable to rotate, thereby causing the rotating plate 13 to be unable to rotate, a protective plate 14 can be set above the rotating shaft 15 to achieve a control operation to improve the rotation stability of the rotating shaft 15 when the coal mining and excavation process is protected by the protective device.

[0035] Here it is the working principle of this protective device for coal mining and excavation.

[0036] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A protective device for coal mining and excavation, comprising a device body (1), a top plate (12) and a swing mechanism arranged on the outer wall of the top plate (12), characterized in that: The swing mechanism includes a rotating assembly; The rotating assembly includes a swing rod (22) and a pulling rod (25), the bottom of the device body (1) is movably connected to a universal roller (11), the top of the device body (1) is fixedly connected to a top plate (12), the outer wall of the top plate (12) is rotatably connected to a rotating shaft (15), the outer wall of the rotating shaft (15) is fixedly connected to a rotating plate (13) rotatably connected to the outer wall of the top plate (12), the outer wall of the top plate (12) is fixedly connected to a protective plate (14) located above the rotating shaft (15), the outer wall of the top plate (12) is fixedly connected to a fixed box (2), the fixed The inner wall of the box (2) is fixedly connected to a fixed rod (21), the outer wall of the fixed rod (21) is slidably connected to a limit block (23), the outer wall of the limit block (23) is rotatably connected to a swing rod (22) rotatably connected to the outer wall of the rotating plate (13), the outer wall of the limit block (23) is rotatably connected to a pulling rod (25) rotatably connected to the inner wall of the fixed box (2), the outer wall of the limit block (23) is fixedly connected to a telescopic rod (26) telescopically connected to the outer wall of the fixed rod (21), and the outer wall of the telescopic rod (26) is sleeved with a spring (27) fixedly connected to the outer wall of the limit block (23).

2. A protective device for coal mining and excavation according to claim 1, characterized in that: Four groups of universal rollers (11) are provided, and the positions of the four groups of universal rollers (11) are distributed around the device body (1).

3. A protective device for coal mining and excavation according to claim 1, characterized in that: Two groups of rotating plates (13) are provided, and the positions of the two groups of rotating plates (13) are symmetrical with respect to the central axis of the device body (1).

4. A protective device for coal mining and excavation according to claim 1, characterized in that: The outer wall profile of the protective plate (14) is arranged in an arc shape.

5. A protective device for coal mining and excavation according to claim 1, characterized in that: A limiting groove (24) is provided at the connection portion between the outer wall of the fixing rod (21) and the limiting block (23). Two groups of fixing rods (21) are provided, and the positions of the two groups of fixing rods (21) are symmetrical with respect to the central axis of the fixing box (2).

6. A protective device for coal mining and excavation according to claim 1, characterized in that: One end of the spring (27) is fixedly connected to the outer wall of the fixing rod (21).

7. A protective device for coal mining and excavation according to claim 1, characterized in that: The rotation center of the swing rod (22) is arranged to coincide with the rotation center of the pulling rod (25).

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