Hydraulic support capable of improving bottom-pricking waste rock leakage prevention capacity

Abstract

The hydraulic support comprises a base, one side of the base is connected with a shield beam, one end of the shield beam is connected with a top beam, one end of the top beam is rotatably provided with a front beam, one side of the top beam is fixedly provided with a side plate, one side of the side plate is provided with a groove, and the side plate is provided with a groove. A groove is formed in one side of the top beam, a transverse plate slides on the inner side of the groove, a first sliding groove is formed in one side of the top beam, a first sliding block slides in the first sliding groove, a motor is fixed to one side of the top beam, a first lead screw is fixed to the output end of the motor, a connecting rod is rotatably arranged on one side of the first sliding block, and a rack is fixed to one side of the transverse plate. A first gear is rotationally arranged on one side of the groove, a second gear is rotationally arranged on one side of the top beam, a second lead screw is fixed to one side of the second gear, a lifting plate is fixed to one side of the top beam, and a fixing block is fixed to one side of the lifting plate. The device has the beneficial effects of being reasonable in structure, convenient to control and capable of improving the bottom-pricking waste rock leakage prevention capacity.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic supports, and specifically to a hydraulic support with improved ability to prevent bottom penetration and leakage of gangue Background Art

[0002] A hydraulic support is a structure used to control the mine pressure in a coal mining face. The mine pressure in the mining face acts on the hydraulic support in the form of external load. In the mechanical system of the interaction between the hydraulic support and the surrounding rock of the mining face, if the resultant force of each supporting member of the hydraulic support and the resultant force of the external load acting on the hydraulic support by the roof are exactly on the same straight line, then the hydraulic support is very suitable for the surrounding rock of this mining face.

[0003] During the process of underground coal mining, broken coal or gangue often falls into the front passage of the mining face. The falling broken coal or gangue is extremely likely to damage the coal mining equipment in the underground working face, affect the personal safety of underground mining personnel and the normal operation of the entire coal mining face. However, the existing hydraulic supports do not have the function of preventing gangue leakage, or can only block gangue at the same position and in the same direction of the hydraulic support, resulting in incomplete protection of the hydraulic support and the coal mining face, and poor gangue blocking effect. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that during the process of underground coal mining, broken coal or gangue often falls into the front passage of the mining face. The falling broken coal or gangue is extremely likely to damage the coal mining equipment in the underground working face, affect the personal safety of underground mining personnel and the normal operation of the entire coal mining face. However, the existing hydraulic supports do not have the function of preventing gangue leakage, or can only block gangue at the same position and in the same direction of the hydraulic support, resulting in incomplete protection of the hydraulic support and the coal mining face, and poor gangue blocking effect, and to propose a hydraulic support with improved ability to prevent bottom penetration and leakage of gangue.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A hydraulic support with improved ability to prevent leakage of bottom coal and gangue, including a base, one side of the base is connected with a shield beam, one end of the shield beam is connected with a top beam, a front beam is rotatably arranged at one end of the top beam, a side plate is fixed on one side of the top beam, a groove is formed on one side of the side plate, a cross plate is slidably arranged inside the groove, a chute one is formed on one side of the top beam, a slider one is slidably arranged in the chute one, a motor is fixed on one side of the top beam, a lead screw one is fixed at the output end of the motor, a connecting rod is rotatably arranged on one side of the slider one, a rack is fixed on one side of the cross plate, a gear one is rotatably arranged on one side of the groove, a gear two is rotatably arranged on one side of the top beam, a lead screw two is fixed on one side of the gear two, a lifting plate is fixed on one side of the top beam, a fixed block is fixed on one side of the lifting plate, a runner is rotatably arranged on one side of the top beam, a chute two is formed on one side of the top beam, a sliding rod is fixed in the chute two, a slider two is slidably arranged on the outer side of the sliding rod, a spring is fixed on one side of the slider two, a baffle is fixed on one side of the slider two, a guide wheel is rotatably arranged on one side of the top beam, and a connecting rope is connected to one side of the baffle.

[0007] As a preferred embodiment of the present invention, a column is rotatably installed on one side surface of the base, one end of the column far from the base is rotatably installed on one side surface of the top beam, a hydraulic rod is rotatably installed on one side surface of the top beam, and one end of the hydraulic rod far from the top beam is rotatably installed on one side surface of the front beam.

[0008] As a preferred embodiment of the present invention, two sliders one are symmetrically arranged, the lead screw one forms a rotation adjustment structure through the motor, the lead screw one is in threaded connection with the two sliders one, and the threaded connection directions are opposite, and one end of the lead screw one far from the motor is rotatably installed on one side surface of the top beam.

[0009] As a preferred embodiment of the present invention, one end of the connecting rod far from the slider one is rotatably installed on one side surface of the cross plate, two connecting rods are connected to a single cross plate, the rack is meshed with the gear one, and the gear one is meshed with the gear two.

[0010] As a preferred embodiment of the present invention, the lead screw two and the gear two are on the same rotation axis, one end of the lead screw two far from the gear two penetrates through the fixed block, and the connecting rope is in threaded connection with the fixed block.

[0011] As a preferred embodiment of the present invention, the gear one and the runner are on the same rotation center, the slider two is slidably installed in the chute two, one end of the spring far from the slider two is fixedly installed on one side surface of the chute two, and the spring is sleeved on the outer side of the sliding rod.

[0012] As a preferred embodiment of the present invention, the baffle is fixedly installed on one side surface of the two second sliders, the end of the connecting rope far from the baffle is fixedly installed on the outer surface of the runner, and the connecting rope is slidably connected with the guide wheel.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. By arranging the motor, the motor can drive the first lead screw to rotate, so that the first lead screw can drive the first slider threadedly connected thereto to slide and adjust in the first chute, and the two first sliders slide in opposite directions. The sliding adjustment of the first slider can drive the cross plate to slide and adjust in the groove under the action of the connecting rod, so that the cross plate opens outward to block the gangue on both sides of the hydraulic support. At the same time, the sliding ring adjustment of the cross plate can drive the rack to slide and adjust, so that the rack can drive the first gear meshing therewith to rotate, so that the first gear can drive the second gear meshing therewith to rotate, so that the second gear can drive the second lead screw to rotate, so that the second lead screw can drive the fixed block threadedly connected thereto to lift and adjust, so that the fixed block drives the lifting plate to telescopically adjust, realizing that the lifting plate blocks the gangue on both sides of the hydraulic support;

[0015] 2. By driving the first gear to rotate through the motor, the first gear can also drive the runner to rotate while rotating, so that the runner can pull the baffle to move and adjust under the action of the connecting rope, so that the baffle can move to the connection part of the top beam and the front beam to block the gangue at the connection part of the top beam and the front beam, making the overall anti-gangue leakage effect better and the protection more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the drawings.

[0017] Figure 1 is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 is a bottom three-dimensional structural diagram of the present invention;

[0019] Figure 3 is a three-dimensional structural diagram of the present invention with the baffle removed;

[0020] Figure 4 is the Figure 2 magnified three-dimensional structural diagram of part A in the present invention.

[0021] In the figure: 1, base; 2, shield beam; 3, top beam; 4, front beam; 5, upright column; 6, hydraulic rod; 7, side plate; 8, groove; 9, cross plate; 10, chute one; 11, slider one; 12, motor; 13, lead screw one; 14, connecting rod; 15, rack; 16, gear one; 17, gear two; 18, lead screw two; 19, lifting plate; 20, fixing block; 21, runner; 22, chute two; 23, sliding rod; 24, slider two; 25, spring; 26, baffle; 27, guide wheel; 28, connecting rope. Detailed implementation manner

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0025] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one solution", "some solutions", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with this solution or example are included in at least one solution or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same solution or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more solutions or examples. <

[0027] Example 1

[0028] Please refer to Figures 1-4 As shown, a hydraulic support with improved ability to prevent leakage of gangue at the bottom includes a base 1. One side of the base 1 is connected to a shield beam 2. One end of the shield beam 2 is connected to a top beam 3. One end of the top beam 3 is rotatably connected to a front beam 4. One side of the top beam 3 is fixed with a side plate 7. One side of the side plate 7 is provided with a groove 8. Inside the groove 8, a cross plate 9 slides. One side of the top beam 3 is provided with a first chute 10. Inside the first chute 10, a first slider 11 slides. One side of the top beam 3 is fixed with a motor 12. The output end of the motor 12 is fixed with a first lead screw 13. The motor 12 can drive the first lead screw 13 to rotate and adjust. The first lead screw 13 is in threaded connection with the first slider 11, so that the motor 12 can be used to control the sliding adjustment of the first slider 11. One side of the first slider 11 is rotatably connected to a connecting rod 14. The end of the connecting rod 14 away from the first slider 11 is rotatably installed on one side surface of the cross plate 9. So that when the motor 12 drives the first slider 11 to slide and adjust, under the action of the connecting rod 14, the cross plate 9 can be driven to slide and adjust, so that the motor 12 can be used to control the movement adjustment of the cross plate 9. When the cross plate 9 opens outward, the protection of the hydraulic support can be realized. One side of the cross plate 9 is fixed with a rack 15. One side of the groove 8 is rotatably connected to a first gear 16. One side of the top beam 3 is rotatably connected to a second gear 17. One side of the second gear 17 is fixed with a second lead screw 18. One side of the top beam 3 is fixed with a lifting plate 19. The lifting adjustment of the lifting plate 19 can be used to realize the protection against gangue on both sides of the hydraulic support. One side of the lifting plate 19 is fixed with a fixing block 20. One side of the top beam 3 is rotatably connected to a runner 21. One side of the top beam 3 is provided with a second chute 22. Inside the second chute 22, a sliding rod 23 is fixed. A second slider 24 slides on the outer side of the sliding rod 23. One side of the second slider 24 is fixed with a spring 25. One side of the second slider 24 is fixed with a baffle 26. The baffle 26 can be used to realize the protection against gangue at the connection between the top beam 3 and the front beam 4. One side of the top beam 3 is rotatably connected to a guide wheel 27. One side of the baffle 26 is connected with a connecting rope 28.

[0029] Example 2

[0030] Please refer to Figures 1-4 As shown in the figure, a column 5 is rotatably installed on one side surface of the base 1. One end of the column 5 far from the base 1 is rotatably installed on one side surface of the top beam 3. A hydraulic rod 6 is rotatably installed on one side surface of the top beam 3. One end of the hydraulic rod 6 far from the top beam 3 is rotatably installed on one side surface of the front beam 4. There are two symmetrically arranged slider ones 11. The lead screw one 13 forms a rotation adjustment structure through the motor 12. The lead screw one 13 is threadedly connected to the two slider ones 11, and the threaded connection directions are opposite. One end of the lead screw one 13 far from the motor 12 is rotatably installed on one side surface of the top beam 3. The motor 12 can drive the lead screw one 13 to perform rotation adjustment. The lead screw one 13 is threadedly connected to the slider one 11, so that the motor 12 can be used to control the sliding adjustment of the slider one 11, and the two slider ones 11 perform sliding adjustment in opposite directions. One end of the connecting rod 14 far from the slider one 11 is rotatably installed on one side surface of the cross plate 9. Two connecting rods 14 are connected to a single cross plate 9. When the motor 12 drives the two slider ones 11 to perform sliding adjustment, under the action of the connecting rod 14, the cross plate 9 can be driven to perform sliding adjustment, so that the cross plate 9 can protect both sides of the hydraulic support. The rack 15 meshes with the gear one 16, and the gear one 16 meshes with the gear two 17.

[0031] Embodiment 3

[0032] Please refer to Figures 1-4 As shown in the figure, the lead screw two 18 and the gear two 17 are on the same rotation axis. One end of the lead screw two 18 far from the gear two 17 penetrates through the fixed block 20, and the connecting rope 28 is threadedly connected to the fixed block 20. When the motor 12 drives the gear one 16 to rotate, the gear one 16 can drive the gear two 17 meshing with it to rotate, so that the gear two 17 can drive the lead screw two 18 to rotate. The lead screw two 18 can drive the fixed block 20 threadedly connected to it to perform lifting adjustment, so that the fixed block 20 drives the lifting plate 19 to perform lifting adjustment, so that the lifting plate 19 can protect and block gangue on both sides of the hydraulic support. The gear one 16 and the runner 21 are on the same rotation axis. The slider two 24 is slidably installed in the chute two 22. One end of the spring 25 far from the slider two 24 is fixedly installed on one side surface of the chute two 22, and the spring 25 is sleeved on the outside of the sliding rod 23. The baffle 26 is fixedly installed on one side surface of the two slider two 24. One end of the connecting rope 28 far from the baffle 26 is fixedly installed on the outer surface of the runner 21, and the connecting rope 28 is slidably connected to the guide wheel 27. When the motor 12 drives the gear one 16 to rotate, it can also drive the runner 21 to rotate. The runner 21 can drive the baffle 26 to perform sliding adjustment under the action of the connecting rope 28, so that the baffle 26 can move to the connection between the top beam 3 and the front beam 4 to block gangue at the connection of the top beam 3 and the front beam 4, improving the overall protection effect.

[0033] When the present invention is in use, by controlling the motor 12, the motor 12 drives the first lead screw 13 to rotate. The rotation of the first lead screw 13 can drive two first sliders 11 threadedly connected thereto to slide and adjust within the first chute 10. Since the thread connection directions of the two first sliders 11 and the first lead screw 13 are opposite, the two first sliders 11 perform reverse sliding adjustment. Under the action of the connecting rod 14, the first sliders 11 can drive the cross plate 9 to slide and adjust within the groove 8, so that the cross plate 9 opens outward to realize the shielding of the hydraulic support against falling rocks. At the same time, the sliding adjustment of the cross plate 9 can drive the sliding adjustment of the rack 15, so that the rack 15 can drive the first gear 16 meshing therewith to rotate, the first gear 16 can drive the second gear 17 meshing therewith to rotate, the second gear 17 can drive the second lead screw 18 to rotate, the second lead screw 18 can drive the fixed block 20 threadedly connected thereto to perform lifting adjustment, the fixed block 20 can drive the lifting plate 19 to perform lifting adjustment, so that the lifting plate 19 can realize the shielding of both sides of the hydraulic support against falling rocks. At the same time, the rotation of the first gear 16 can drive the runner 21 to rotate, so that the runner 21 can pull the baffle 26 to move and adjust under the action of the connecting rope 28, so that the baffle 26 can move to the connection between the top beam 3 and the front beam 4, and the baffle 26 can realize the shielding and protection of the connection between the top beam 3 and the front beam 4, making the overall protection effect better. By providing the spring 25, the spring 25 can apply an elastic force between the sliding rod 23 and the second slider 24, so that the baffle 26 is not at the connection between the top beam 3 and the front beam 4 without being affected by other external forces, avoiding affecting the rotation adjustment of the front beam 4.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A hydraulic support with improved ability to prevent bottom leakage of gangue, comprising a base (1), characterized in that, One side of the base (1) is connected to a shield beam (2), one end of the shield beam (2) is connected to a top beam (3), a front beam (4) is rotatably connected to one end of the top beam (3), a side plate (7) is fixed to one side of the top beam (3), a groove (8) is formed on one side of the side plate (7), a cross plate (9) is slidably arranged inside the groove (8), a first chute (10) is formed on one side of the top beam (3), a first slider (11) is slidably arranged inside the first chute (10), a motor (12) is fixed to one side of the top beam (3), a first lead screw (13) is fixed to the output end of the motor (12), a connecting rod (14) is rotatably connected to one side of the first slider (11), a rack (15) is fixed to one side of the cross plate (9), a first gear (16) is rotatably connected to one side of the groove (8), a second gear (17) is rotatably connected to one side of the top beam (3), a second lead screw (18) is fixed to one side of the second gear (17), a lifting plate (19) is fixed to one side of the top beam (3), a fixing block (20) is fixed to one side of the lifting plate (19), a runner (21) is rotatably connected to one side of the top beam (3), a second chute (22) is formed on one side of the top beam (3), a sliding rod (23) is fixed inside the second chute (22), a second slider (24) is slidably arranged on the outer side of the sliding rod (23), a spring (25) is fixed to one side of the second slider (24), a baffle (26) is fixed to one side of the second slider (24), a guide wheel (27) is rotatably connected to one side of the top beam (3), and a connecting rope (28) is connected to one side of the baffle (26).

2. The hydraulic support with the ability to improve the bottom plugging and gangue leakage prevention according to claim 1, characterized in that A column (5) is rotatably installed on one side surface of the base (1), and the end of the column (5) far from the base (1) is rotatably installed on one side surface of the top beam (3). A hydraulic rod (6) is rotatably installed on one side surface of the top beam (3), and the end of the hydraulic rod (6) far from the top beam (3) is rotatably installed on one side surface of the front beam (4).

3. The hydraulic support with the ability to improve the bottom leakage prevention and gangue leakage prevention according to claim 2, characterized in that, There are two symmetrically arranged first sliders (11). The first lead screw (13) forms a rotational adjustment structure through the motor (12). The first lead screw (13) is in threaded connection with the two first sliders (11), and the threaded connection directions are opposite. The end of the first lead screw (13) far from the motor (12) is rotatably installed on one side surface of the top beam (3).

4. A hydraulic support with enhanced ability to prevent leakage of gangue at the bottom according to claim 3, characterized in that, The end of the connecting rod (14) far from the first slider (11) is rotatably installed on one side surface of the cross plate (9). Two connecting rods (14) are connected to a single cross plate (9). The rack (15) and the first gear (16) are meshed with each other, and the first gear (16) and the second gear (17) are meshed with each other.

5. The hydraulic support with improved ability to prevent leakage of gangue at the bottom according to claim 4, characterized in that, The second lead screw (18) and the second gear (17) are on the same rotation axis. The end of the second lead screw (18) far from the second gear (17) penetrates through the fixing block (20), and the connecting rope (28) is in threaded connection with the fixing block (20).

6. A hydraulic support with improved ability to prevent leakage of gangue at the bottom according to claim 5, characterized in that The first gear (16) and the runner (21) are located on the same rotation axis. The second slider (24) is slidably installed in the second chute (22). One end of the spring (25) away from the second slider (24) is fixedly installed on one side surface of the second chute (22), and the spring (25) is sleeved on the outer side of the sliding rod (23).

7. A hydraulic support with improved ability to prevent leakage of gangue at the bottom according to claim 6, characterized in that, The baffle (26) is fixedly installed on one side surface of the two second sliders (24). One end of the connecting rope (28) away from the baffle (26) is fixedly installed on the outer side surface of the runner (21), and the connecting rope (28) is slidably connected with the guide pulley (27).

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