Hydraulic supporting structure for coal mine filling

By designing a coal mine filled hydraulic support structure containing multiple hydraulic cylinders and mobile frames, the problem that the prior art cannot provide sufficient support under complex geological conditions is solved, and better hydraulic support effect and safety are achieved.

CN119982056AInactive Publication Date: 2025-05-13LIUPANSHUI NORMAL UNIV +1
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Patent Information

Application Number
CN202510074412.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2025-05-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing coal mine filling hydraulic support structure cannot provide sufficient support and stability when facing complex geological structures, resulting in poor filling effect and may even cause safety accidents.

Method used

A coal mine filled hydraulic support structure is designed, including frame, vertical frame, oblique hydraulic cylinder, mobile frame, top frame, support frame, mounting seat, main hydraulic cylinder, active block, limit rod, secondary hydraulic cylinder, support block and arc-shaped elastic plate and other components. Through the synergy of these components, the flexibility and stability of hydraulic support is achieved.

Benefits of technology

The structure can provide better hydraulic support and stability under complex geological conditions, improve filling effect, reduce the risk of safety accidents, and reduce manual intervention through automation functions and improve production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of coal mine engineering, and discloses a coal mine filling hydraulic supporting structure which comprises a rack, a vertical frame is fixedly installed at one end of the rack, a supporting assembly is arranged on the rack, and the supporting assembly comprises an inclined hydraulic cylinder. According to the coal mine filling hydraulic supporting structure, in order to better carry out hydraulic supporting, the supporting assembly is arranged, when an inclined hydraulic cylinder is started, one end of the movable frame is pushed, the other end of the movable frame can rotate with the hinge point of the movable frame and the vertical frame as the circle center, and the movable frame can swing to adapt to rock walls in mines in more shapes; the whole device structure is firmer in cooperation with a top frame, the movable frame is more stable in the horizontal state in cooperation with a supporting frame, an arc-shaped elastic plate is deformed after being attached to the stone wall in the open space in cooperation with a mounting base, a main hydraulic cylinder, a main bearing piece, a driving block, a secondary hydraulic cylinder, a supporting block and a secondary bearing piece, and therefore hydraulic supporting is better conducted.
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Description

Technical Field

[0001] The invention relates to the technical field of coal mine engineering, in particular to a coal mine filling hydraulic support structure. Background Art

[0002] As an important basic energy source in my country, coal occupies a key position in economic development. With the continuous expansion of the depth and scale of coal mining, a series of problems caused by traditional mining methods have become increasingly prominent. On the one hand, if the goaf formed during the mining process is not dealt with in time, it will lead to geological disasters such as roof collapse and surface collapse, seriously affecting the ecological environment of the mining area and the safety of life and property of surrounding residents; on the other hand, the existence of goaf will also threaten the safety of underground workers and affect the normal production order of coal mines.

[0003] Most of the existing hydraulic support structures for coal mine filling are designed according to specific coal mine geological conditions and mining processes, and have poor adaptability to different geological conditions and mining environments. When encountering complex geological structures, such as faults and folds, the existing hydraulic support structures may not be able to provide sufficient support and stability, resulting in poor filling effects and even safety accidents.

[0004] Although some hydraulic support structures for coal mine filling have certain automation functions, the overall degree of automation is still low, and many operations still require manual intervention and posture adjustment of the hydraulic support structure, which not only increases the labor intensity of operators, but also easily leads to operational errors due to human factors, affecting the safety and efficiency of coal mine production. In view of the lack of auxiliary support structure, we proposed a hydraulic support structure for coal mine filling. Summary of the invention

[0005] The object of the present invention is to provide a coal mine filling hydraulic support structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A coal mine filling hydraulic support structure comprises a frame, one end of which is fixedly mounted with a vertical frame, and a support assembly is arranged on the frame, and the support assembly comprises:

[0008] An oblique hydraulic cylinder, the other end of the frame is hinged to the fixed end of the oblique hydraulic cylinder, the piston end of the oblique hydraulic cylinder is hinged to one end of the mobile frame, the other end of the mobile frame is hingedly mounted on the vertical frame, a top frame is fixedly mounted on the outer side of one end of the mobile frame close to the vertical frame, and a support frame is fixedly mounted on the frame;

[0009] A mounting seat is fixedly installed on the outer side of the mobile frame, the outer side of the mounting seat is fixedly connected to the fixed end of the master hydraulic cylinder, the outer side of the piston end of the master hydraulic cylinder is fixedly connected to one end of the active block, a limit rod is fixedly installed on the outer wall of the master hydraulic cylinder, and the inner side of the active block is slidably installed on the limit rod through the main bearing member;

[0010] The outer side of the active block is fixedly connected to the fixed end of the secondary hydraulic cylinder, the piston end of the secondary hydraulic cylinder is fixedly installed with a support block, the inner side of the support block is slidably installed on the limit rod through a secondary bearing, and the outer side of the support block is fixedly installed with an arc-shaped elastic plate, which is close to the stone wall in the mine.

[0011] Preferably, two groups of the oblique hydraulic cylinders are provided, and the two groups of the oblique hydraulic cylinders are symmetrically arranged at both ends of the vertical frame with the vertical center line of the frame as the symmetry axis, so that the movement of the mobile frame is more stable.

[0012] Preferably, the mounting seat, main hydraulic cylinder, active block and support block are provided in multiple groups, and the multiple groups of mounting seats, main hydraulic cylinders, active blocks and support blocks are linearly arrayed on the side of the mobile frame away from the oblique hydraulic cylinder, so as to achieve better supporting effect.

[0013] Preferably, there are two groups of limit rods, main bearing components, secondary hydraulic cylinders, secondary bearing components and arc-shaped elastic plates on a single group of the main hydraulic cylinder, and the two groups of limit rods, main bearing components, secondary hydraulic cylinders, secondary bearing components and arc-shaped elastic plates all use the vertical center line of the main hydraulic cylinder as the mirror axis and are mirrored at both ends of the main hydraulic cylinder.

[0014] Preferably, the frame and the top frame are fixedly mounted on the stone wall in the mine by means of fixing parts, so that the structure of the device is more solid.

[0015] Preferably, a moving component is provided on the active block, and the moving component includes a side block, a side block is fixedly installed on the outer side of one end of the active block, an asynchronous motor is fixedly installed on the outer side of the other end of the active block, one end of a threaded rod is fixedly installed on the output end of the asynchronous motor, and the other end of the threaded rod is rotatably installed on the side block.

[0016] Preferably, a threaded block is threadedly installed on the outer side of the threaded rod, a sliding block is fixedly installed on the outer side of the threaded block, a sliding rail is fixedly installed on the active block, and the sliding block is slidably installed on the sliding rail, so that the movement of the sliding block is more stable.

[0017] Preferably, the sliding block is provided with an auxiliary component, the auxiliary component includes a mounting groove, the sliding block is provided with a mounting groove, an asynchronous motor is provided inside the mounting groove, and the asynchronous motor is fixedly installed on the inner side of the sliding block.

[0018] Preferably, a rotating shaft is fixedly installed at the output end of the asynchronous motor, the outer side of the rotating shaft is fixedly installed on the inner side of one end of the swing rod, the other end of the swing rod is fixedly connected to the fixed end of the auxiliary hydraulic cylinder, the piston end of the auxiliary hydraulic cylinder is fixedly installed with an auxiliary block, and the outer side of the auxiliary block is close to the stone wall inside the mine.

[0019] Preferably, a plurality of groups of auxiliary hydraulic cylinders are arranged outside a single group of sliding blocks, so that the movement of the auxiliary block is more stable.

[0020] Compared with the prior art, the present invention provides a coal mine filling hydraulic support structure, which has the following beneficial effects:

[0021] 1. The coal mine filling hydraulic support structure is provided with a support assembly in order to better perform hydraulic support. When the oblique hydraulic cylinder is started, one end of the mobile frame is pushed, and the other end of the mobile frame can rotate with the hinge point with the vertical frame as the center of the circle, so that the mobile frame can swing to adapt to more shapes of stone walls in the mine. With the top frame, the overall structure of the device is more solid. With the support frame, the mobile frame is more stable in the horizontal state. With the mounting seat, the main hydraulic cylinder and the main bearing, the active block can move outside the limit rod. With the secondary hydraulic cylinder, the support block and the secondary bearing, the arc elastic plate is deformed after being close to the stone wall in the mine, so as to better perform hydraulic support.

[0022] 2. In order to achieve better supporting effect, the coal mine filling hydraulic support structure is provided with a moving component. When the asynchronous motor is started, the threaded rod rotates on the side block, so that the threaded block can move axially, thereby driving the sliding block to move synchronously on the slide rail. The self-locking property of the threaded connection between the threaded rod and the threaded block can be utilized, so that the sliding block can stably fit the stone wall in the clearance, thereby achieving better supporting effect.

[0023] 3. In order to further improve the supporting effect, the coal mine filling hydraulic support structure is equipped with auxiliary components. When the asynchronous motor in the installation slot is started, the rotating shaft rotates, so that the swing arm can rotate, thereby driving the auxiliary hydraulic cylinder to rotate synchronously. When the auxiliary hydraulic cylinder is started, the auxiliary block moves, so that the auxiliary block can move axially while revolving, so that the auxiliary block can provide auxiliary support to the stone wall in the open space, thereby achieving better supporting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic top view of the overall structure of the present invention;

[0025] Figure 2 It is a schematic top view of the overall structure of the present invention from another viewing angle;

[0026] Figure 3 It is a bottom view schematic diagram of a part of the structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the connection of some structures of the support assembly of the present invention;

[0028] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of the middle A area;

[0029] Figure 6 This is a schematic diagram of the master hydraulic cylinder and some structural connections of the present invention;

[0030] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of the middle B area;

[0031] Figure 8 It is a schematic diagram of the explosion of part of the structure of the present invention.

[0032] In the figure: 1. frame; 2. vertical frame; 3. support assembly; 31. oblique hydraulic cylinder; 32. mobile frame; 33. top frame; 34. support frame; 35. mounting seat; 36. main hydraulic cylinder; 37. active block; 38. limit rod; 39. main bearing member; 310. secondary hydraulic cylinder; 311. support block; 312. secondary bearing member; 313. arc elastic plate; 4. mobile assembly; 41. side block; 42. asynchronous motor; 43. threaded rod; 44. threaded block; 45. sliding block; 46. slide rail; 5. auxiliary assembly; 51. mounting groove; 52. asynchronous motor; 53. rotating shaft; 54. swing rod; 55. auxiliary hydraulic cylinder; 56. auxiliary block. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, rather than all of the embodiments.

[0034] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of protection of this application.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0036] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0037] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] See also Figure 1 - Figure 8 , the present invention provides a technical solution:

[0040] A coal mine filling hydraulic support structure comprises a frame 1, and a vertical frame 2 is fixedly installed at one end of the frame 1.

[0041] In one embodiment of the present invention, a support assembly 3 is provided on the frame 1, and the support assembly 3 includes an oblique hydraulic cylinder 31. The other end of the frame 1 is hinged to the fixed end of the oblique hydraulic cylinder 31, and the piston end of the oblique hydraulic cylinder 31 is hinged to one end of a moving frame 32. Further, the other end of the moving frame 32 is hingedly mounted on the vertical frame 2. In addition, two groups of oblique hydraulic cylinders 31 are provided, and the two groups of oblique hydraulic cylinders 31 are symmetrically arranged at both ends of the vertical frame 2 with the vertical center line of the frame 1 as the symmetry axis, so that the movement of the moving frame 32 is more stable. A top frame 33 is fixedly installed on the outer side of one end of the moving frame 32 close to the vertical frame 2. In addition, the frame 1 and the top frame 33 are fixedly installed on the stone wall in the mine through fixings, so that the structure of the device is more solid (the fixings are ground nails or rock nails). ), further, when the oblique hydraulic cylinder 31 is working, its piston extends or retracts, pushing one end of the mobile frame 32, so that the mobile frame 32 rotates with the hinge point with the vertical frame 2 as the center of the circle, in this way, the mobile frame 32 can swing, so as to maintain different inclination angles to adapt to various shapes of stone walls in the mine, the frame 1 and the top frame 33 are fixedly installed on the stone wall in the mine by fixing parts such as ground nails or rock nails, which makes the structure of the device more solid, further, a support frame 34 is fixedly installed on the frame 1, and a mounting seat 35 is fixedly installed on the outside of the mobile frame 32, at the same time, when the mobile frame 32 is in a horizontal state, the support frame 34 on the frame 1 can provide additional support for it, so that the mobile frame 32 is more stable, and the mounting seat 35 is fixedly connected to the outside of the mounting seat 35 The fixed end of the main hydraulic cylinder 36 is connected. Further, the outer side of the piston end of the main hydraulic cylinder 36 is fixedly connected to one end of the active block 37. Further, a limit rod 38 is fixedly installed on the outer wall of the main hydraulic cylinder 36. The inner side of the active block 37 is slidably installed on the limit rod 38 through the main bearing member 39. When the main hydraulic cylinder 36 is started, the expansion and contraction of its piston drives the active block 37 to move along the direction of the limit rod 38 on the outer side of the limit rod 38. Further, the inner side of the support block 311 is slidably installed on the limit rod 38 through the secondary bearing member 312. The outer side of the active block 37 is fixedly connected to the fixed end of the secondary hydraulic cylinder 310. The piston end of the secondary hydraulic cylinder 310 is fixedly installed with a support block 311. In addition, the mounting seat 35, the main hydraulic cylinder 36, the active block 37 and the support block 311 are provided in six groups, and Six groups of mounting seats 35, main hydraulic cylinders 36, active blocks 37 and support blocks 311 are linearly arrayed on one side of the mobile frame 32 away from the oblique hydraulic cylinder 31, so as to achieve a better support effect. Furthermore, the inner side of the support block 311 is slidably mounted on the limit rod 38 through the secondary bearing member 312, and an arc-shaped elastic plate 313 is fixedly mounted on the outer side of the support block 311, and the arc-shaped elastic plate 313 is closely attached to the stone wall in the mine. In addition, two groups of limit rods 38, main bearing members 39, secondary hydraulic cylinders 310, secondary bearing members 312 and arc-shaped elastic plates 313 are provided on the single group of main hydraulic cylinders 36, and the two groups of limit rods 38, main bearing members 39, secondary hydraulic cylinders 310, secondary bearing members 312 and arc-shaped elastic plates 313 all take the vertical center line of the main hydraulic cylinder 36 as the mirror axis.Mirror images are set at both ends of the main hydraulic cylinder 36. Further, when the secondary hydraulic cylinder 310 is started, its piston movement drives the support block 311 to move axially along the limit rod 38. With the axial movement of the support block 311, further, the arc-shaped elastic plate 313 gradually approaches and sticks to the stone wall in the mine. Since the surface of the stone wall in the mine may be uneven, further, the arc-shaped elastic plate 313 will deform after contacting the stone wall, so as to better fit the surface of the stone wall, realize hydraulic support, and further enhance the support effect.

[0042] In one embodiment of the present invention, a moving assembly 4 is provided on the active block 37, and the moving assembly 4 includes a side block 41. Further, the side block 41 is fixedly installed on the outer side of one end of the active block 37, and an asynchronous motor 42 is fixedly installed on the outer side of the other end of the active block 37. One end of a threaded rod 43 is fixedly installed on the output end of the asynchronous motor 42, and the other end of the threaded rod 43 is rotatably installed on the side block 41. Further, the moving assembly 4 provided on the active block 37 starts to work. When the asynchronous motor 42 is started, its output shaft rotates, driving the threaded rod 43 fixedly installed on the output end to rotate. In addition, a threaded block 44 is threadedly installed on the outer side of the threaded rod 43. A sliding block 45 is fixedly installed on the outside of the threaded block 44. Furthermore, a slide rail 46 is fixedly installed on the active block 37. The sliding block 45 is slidably installed on the slide rail 46, so that the movement of the sliding block 45 is more stable. As the threaded rod 43 rotates, due to the action of the thread, the threaded block 44 will move along the axial direction of the threaded rod 43. In this way, the movement of the threaded block 44 drives the sliding block 45 to move synchronously on the slide rail 46. By utilizing the self-locking property of the threaded connection between the threaded rod 43 and the threaded block 44, when the sliding block 45 moves to a suitable position, it can stably fit the stone wall in the mine, thereby enhancing the supporting effect on the stone wall in the mine.

[0043] In one embodiment of the present invention, an auxiliary component 5 is provided on the sliding block 45, and the auxiliary component 5 includes a mounting groove 51. The sliding block 45 is provided with the mounting groove 51. Further, an asynchronous motor 52 is provided inside the mounting groove 51, and the asynchronous motor 52 is fixedly installed on the inner side of the sliding block 45. In addition, a rotating shaft 53 is fixedly installed on the output end of the asynchronous motor 52, and the outer side of the rotating shaft 53 is fixedly installed on the inner side of one end of the swing rod 54. Further, the auxiliary component 5 provided on the sliding block 45 plays a role. When the asynchronous motor 52 is started, its output end drives the fixedly installed rotating shaft 53 to rotate. Further, the rotation of the rotating shaft 53 causes the swing rod 54 to rotate around the rotating shaft 53. Further, the rotation of the swing rod 54 drives the auxiliary hydraulic cylinder 55 to rotate synchronously. The other end of the swing rod 54 is fixedly connected The auxiliary block 56 is fixedly installed at the fixed end of the auxiliary hydraulic cylinder 55 and the piston end of the auxiliary hydraulic cylinder 55. The outer side of the auxiliary block 56 is in close contact with the stone wall in the mine. Furthermore, when the auxiliary hydraulic cylinder 55 is started, its piston extends or retracts, driving the auxiliary block 56 fixedly installed at the piston end to move. The outer side of the auxiliary block 56 is in close contact with the stone wall in the mine. Furthermore, under the action of the auxiliary hydraulic cylinder 55, the auxiliary block 56 can not only revolve around a certain trajectory, but also move along the axial direction. Through this composite movement mode, the auxiliary block 56 can provide more comprehensive and more effective auxiliary support to the stone wall in the mine, further enhancing the supporting effect of the entire coal mine filling hydraulic support structure. In addition, two groups of auxiliary hydraulic cylinders 55 are arranged on the outer side of the single group of sliding blocks 45, so that the movement of the auxiliary block 56 is more stable.

[0044] Among them, the electrical components appearing in the present application document are all electrically connected to the controller, and the controller is a conventional known device that can control the oblique hydraulic cylinder 31, the main hydraulic cylinder 36, the secondary hydraulic cylinder 310, the asynchronous motor 42, the asynchronous motor 52 and the auxiliary hydraulic cylinder 55. The standard parts used in the present application document can all be purchased from the market, and the specific connection methods of each part are connected by conventional means such as mature rivets and welding in the prior art. In addition, the machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0045] Working principle: When the inclined hydraulic cylinder 31 is working, its piston extends or retracts, pushing one end of the mobile frame 32, so that the mobile frame 32 rotates with the hinge point with the vertical frame 2 as the center. In this way, the mobile frame 32 can swing, thereby maintaining different tilt angles to adapt to various shapes of stone walls in the mine. The frame 1 and the top frame 33 are fixedly installed on the stone wall in the mine through fixing parts such as ground nails or rock nails, which makes the structure of the device more solid. At the same time, the support frame 34 on the frame 1 can provide additional support for the mobile frame 32 when it is in a horizontal state, making the mobile frame 32 more stable. When the main hydraulic pressure is started, the mobile frame 32 can be rotated with the hinge point with the vertical frame 2 as the center. When the secondary hydraulic cylinder 310 is started, the movement of its piston drives the support block 311 to move axially along the limit rod 38. With the axial movement of the support block 311, the arc-shaped elastic plate 313 gradually approaches and adheres to the stone wall in the mine. Since the surface of the stone wall in the mine may be uneven, the arc-shaped elastic plate 313 will deform after contacting the stone wall, so as to better fit the surface of the stone wall, realize hydraulic support, and further enhance the support effect.

[0046] Furthermore, the moving component 4 provided on the active block 37 starts to work. When the asynchronous motor 42 is started, its output shaft rotates, driving the threaded rod 43 fixedly installed at the output end to rotate. As the threaded rod 43 rotates, due to the action of the thread, the threaded block 44 will move along the axial direction of the threaded rod 43. In this way, the movement of the threaded block 44 drives the sliding block 45 to move synchronously on the slide rail 46. By utilizing the self-locking property of the threaded connection between the threaded rod 43 and the threaded block 44, when the sliding block 45 moves to a suitable position, it can stably fit the stone wall in the mine, thereby enhancing the supporting effect on the stone wall in the mine.

[0047] Furthermore, the auxiliary component 5 provided on the sliding block 45 plays a role. When the asynchronous motor 52 is started, its output end drives the fixedly installed rotating shaft 53 to rotate. The rotation of the rotating shaft 53 causes the swing rod 54 to rotate around the rotating shaft 53. The rotation of the swing rod 54 drives the auxiliary hydraulic cylinder 55 to rotate synchronously. When the auxiliary hydraulic cylinder 55 is started, its piston extends or retracts, driving the auxiliary block 56 fixedly installed at the piston end to move. The outer side of the auxiliary block 56 is close to the stone wall in the mine. Under the action of the auxiliary hydraulic cylinder 55, the auxiliary block 56 can not only revolve around a certain trajectory, but also move along the axial direction. Through this composite motion mode, the auxiliary block 56 can provide more comprehensive and more effective auxiliary support to the stone wall in the mine, further enhancing the supporting effect of the entire coal mine filling hydraulic support structure.

[0048] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A coal mine filling hydraulic support structure, comprising a frame (1), a vertical frame (2) being fixedly mounted at one end of the frame (1), characterized in that: The frame (1) is provided with a support assembly (3), and the support assembly (3) comprises: An oblique hydraulic cylinder (31), the other end of the frame (1) is hinged to the fixed end of the oblique hydraulic cylinder (31), the piston end of the oblique hydraulic cylinder (31) is hinged to one end of a movable frame (32), the other end of the movable frame (32) is hingedly mounted on the vertical frame (2), a top frame (33) is fixedly mounted on the outer side of one end of the movable frame (32) close to the vertical frame (2), and a support frame (34) is fixedly mounted on the frame (1); A mounting seat (35), the outer side of the movable frame (32) is fixedly mounted with the mounting seat (35), the outer side of the mounting seat (35) is fixedly connected to the fixed end of the main hydraulic cylinder (36), the outer side of the piston end of the main hydraulic cylinder (36) is fixedly connected to one end of the active block (37), the outer wall of the main hydraulic cylinder (36) is fixedly mounted with a limit rod (38), and the inner side of the active block (37) is slidably mounted on the limit rod (38) through a main bearing member (39); The secondary hydraulic cylinder (310) is fixedly connected to the fixed end of the secondary hydraulic cylinder (310) on the outside of the active block (37); a support block (311) is fixedly installed on the piston end of the secondary hydraulic cylinder (310); the inner side of the support block (311) is slidably installed on the limit rod (38) through a secondary bearing (312); an arc-shaped elastic plate (313) is fixedly installed on the outer side of the support block (311); and the arc-shaped elastic plate (313) is closely attached to the stone wall in the mine.

2. A coal mine filling hydraulic support structure according to claim 1, characterized in that: Two groups of the oblique hydraulic cylinders (31) are provided, and the two groups of the oblique hydraulic cylinders (31) are symmetrically arranged at both ends of the vertical frame (2) with the vertical center line of the frame (1) as the symmetry axis.

3. A coal mine filling hydraulic support structure according to claim 1, characterized in that: The mounting seat (35), the main hydraulic cylinder (36), the active block (37) and the support block (311) are provided in multiple groups, and the multiple groups of the mounting seat (35), the main hydraulic cylinder (36), the active block (37) and the support block (311) are linearly arrayed on a side of the moving frame (32) away from the oblique hydraulic cylinder (31).

4. A coal mine filling hydraulic support structure according to claim 3, characterized in that: The limiting rod (38), the main bearing component (39), the secondary hydraulic cylinder (310), the secondary bearing component (312) and the arc-shaped elastic plate (313) on the single set of the main hydraulic cylinder (36) are provided in two groups, and the two groups of the limiting rod (38), the main bearing component (39), the secondary hydraulic cylinder (310), the secondary bearing component (312) and the arc-shaped elastic plate (313) are both mirrored at both ends of the main hydraulic cylinder (36) with the vertical center line of the main hydraulic cylinder (36) as the mirror axis.

5. A coal mine filling hydraulic support structure according to claim 1, characterized in that: The frame (1) and the top frame (33) are fixedly mounted on the stone wall in the mine via fixing parts.

6. A coal mine filling hydraulic support structure according to claim 1, characterized in that: The active block (37) is provided with a moving assembly (4), the moving assembly (4) comprising a side block (41), the side block (41) being fixedly mounted on the outer side of one end of the active block (37), an asynchronous motor (42) being fixedly mounted on the outer side of the other end of the active block (37), one end of a threaded rod (43) being fixedly mounted on the output end of the asynchronous motor (42), and the other end of the threaded rod (43) being rotatably mounted on the side block (41).

7. A coal mine filling hydraulic support structure according to claim 6, characterized in that: A threaded block (44) is threadedly mounted on the outer side of the threaded rod (43), a sliding block (45) is fixedly mounted on the outer side of the threaded block (44), a sliding rail (46) is fixedly mounted on the active block (37), and the sliding block (45) is slidably mounted on the sliding rail (46).

8. A coal mine filling hydraulic support structure according to claim 7, characterized in that: The sliding block (45) is provided with an auxiliary component (5), the auxiliary component (5) comprises a mounting groove (51), the sliding block (45) is provided with a mounting groove (51), an asynchronous motor (52) is arranged inside the mounting groove (51), and the asynchronous motor (52) is fixedly mounted on the inner side of the sliding block (45).

9. A coal mine filling hydraulic support structure according to claim 8, characterized in that: A rotating shaft (53) is fixedly mounted on the output end of the asynchronous motor (52), the outer side of the rotating shaft (53) is fixedly mounted on the inner side of one end of a swing rod (54), the other end of the swing rod (54) is fixedly connected to the fixed end of an auxiliary hydraulic cylinder (55), an auxiliary block (56) is fixedly mounted on the piston end of the auxiliary hydraulic cylinder (55), and the outer side of the auxiliary block (56) is in close contact with the stone wall in the mine.

10. A coal mine filling hydraulic support structure according to claim 9, characterized in that: A plurality of groups of the auxiliary hydraulic cylinders (55) are provided outside a single group of the sliding blocks (45).