Large-angle hydraulic support inter-frame rock retaining device

Abstract

The present invention discloses a rock blocking device between frames of a large-angle hydraulic support, which relates to the technical field of rock blocking between frames of a large-angle hydraulic support, and includes a base, a first hydraulic rod, a first top plate and a second top plate. The top of the base is movably connected to the first hydraulic rod through a bearing, and one end of the first hydraulic rod is slidably connected to the second top plate; the present invention drives the entire sleeve to move on the threaded rod through a first motor, so that the contact position of the connecting rod connecting the entire first adjustment plate and the second adjustment plate and the rotating column changes, thereby driving the first mining protection net connected to the surface of the rotating shaft on the first adjustment ring and the second mining protection net connected to the surface of the rotating sleeve on the second adjustment ring to rotate, thereby realizing rock blocking for the side surfaces and working surfaces of the entire large-angle hydraulic support frame, avoiding the problem of rock entering the base and causing damage to the hydraulic support or operating and maintenance personnel, and improving the safety of the entire hydraulic support during mining.

Description

Technical Field

[0001] The invention relates to the technical field of rock blocking between frames of a large-angle hydraulic support, in particular to a rock blocking device between frames of a large-angle hydraulic support. Background Art

[0002] In fully mechanized mining faces with large inclination angles, the coal wall is often accompanied by spalling. When the coal mining unit cuts coal, the gangue above the roof will fall and damage the unit below, affecting the efficiency of coal mining and causing unnecessary economic losses.

[0003] At present, high-angle coal seams account for about 15% to 20% of my country's coal reserves and 5% to 10% of its production. However, there has been no good mining method for high-angle and steeply inclined coal seams at home and abroad. The mining technology is difficult and they are listed as "coal mining restricted areas" abroad. The casualty rate of mining faces is more than 4%. When implementing mechanized comprehensive mining for high-angle and steeply inclined coal seams, due to the large inclination and small working face space, the rock control, equipment structure and layout, production process and safety technology are different from those of gently inclined coal seams. It is difficult to achieve comprehensive mechanized mining of longwall working faces in steeply inclined coal seams. In particular, when dealing with the problem of flying gangue prevention, due to the large inclination of high-angle and steeply inclined coal mining, the gangue produced rolls down the slope under the action of gravity, causing damage to the comprehensive mining equipment and, most fatally, causing casualties.

[0004] When mechanized comprehensive mining is implemented on a large-angle or steep-inclined longwall working face, in order to effectively prevent gangue from rolling down the inclined slope and causing damage to the equipment and casualties of the comprehensive mining working face, a gangue retaining device is set between the comprehensive mining support equipment, which can effectively prevent gangue from rolling down the slope and protect the safety of pedestrian passages and equipment. Therefore, as mentioned in the invention patent application with publication number CN114526105A, the hydraulic rod on the hydraulic support can adjust the overall position to achieve precise protection, the mine protection net can be unfolded by the active trolley, and the driven trolley is driven by the chain transmission to move horizontally to reach the maximum unfolding surface, thereby performing gangue protection for workers who are undergoing maintenance. This mechanism has the ability to bear the side gangue, and has a compact structure. It can be installed and used in the narrow space of the support without affecting the normal mining of the comprehensive mining working face. However, the entire gangue retaining protection is only for gangue falling laterally, and some gangue will still fall from the mining working face;

[0005] At the same time, the installation of the rock retaining equipment also needs to pay attention to whether it conflicts with the mining equipment on the scraper conveyor equipment to avoid affecting the normal movement of the entire mining equipment;

[0006] To this end, we proposed a large-angle hydraulic support inter-frame rock retaining device. Summary of the Invention

[0007] The purpose of the present invention is to provide a large-angle hydraulic support inter-frame rock retaining device to solve the problems raised in the above background technology;

[0008] The first motor drives the entire housing to move on the threaded rod, so that the contact position between the connecting rod connecting the first adjustment plate and the second adjustment plate and the rotating column changes, which helps workers to protect the gangue from falling at different stages and avoid damage to the facilities around the hydraulic support.

[0009] By adding a baffle on one side of the cable trough, the problem of damage to the facilities around the hydraulic support caused by the failure of the mining protection net to intercept is avoided;

[0010] To achieve the above object, the present invention provides the following technical solutions:

[0011] A high-angle hydraulic support inter-frame rock retaining device comprises a base, a first hydraulic rod, a first top plate and a second top plate. The top of the base is movably connected to the first hydraulic rod via a bearing, and one end of the first hydraulic rod is slidably connected to the second top plate. One side of the second top plate is rotatably connected to the first top plate. Side plates are symmetrically fixed to both sides of the second top plate by spot welding. Adjustment chambers are symmetrically opened on both sides of the second top plate, and a rotating rock retaining mechanism is installed in the adjustment chamber.

[0012] The rotating gangue retaining mechanism includes a rotating shaft, a rotating sleeve, a first adjusting ring, a second adjusting ring and a reinforcing frame, the top inner wall of the adjusting cavity is movably connected to the rotating shaft through a bearing, and the rotating sleeve is movably sleeved on the rotating shaft, the outer wall of the rotating shaft and the bottom of the second top plate are fixed with a reinforcing frame by bolts, and a first mining protective net is installed on one side of the reinforcing frame, the outer wall of the rotating sleeve is fixed with a reinforcing frame by bolts, and a second mining protective net is installed on one side of the reinforcing frame, the outer wall of the rotating shaft and the first adjusting ring are sleeved and fixed in the adjusting cavity, and the second adjusting plate is clamped in the first adjusting ring, the second adjusting plate and the first adjusting ring are slidably connected, the outer wall of the rotating sleeve and the second adjusting ring are sleeved and fixed in the adjusting cavity, and the first adjusting plate is clamped in the second adjusting ring, and the first adjusting plate and the second adjusting ring are slidably connected;

[0013] A fixed shell is installed in the adjustment cavity, and a connecting rod is symmetrically slidably connected to one side of the fixed shell, one end of the two connecting rods is fixed to one side of the first adjustment plate and the second adjustment plate respectively, one end of the connecting rod passes through the fixed shell and extends into the fixed shell, and a spring is fixed on the outer wall of the connecting rod located in the fixed shell, and one side of the spring abuts against the inner wall of the fixed shell;

[0014] The first motor is fixed to the inner wall of one side of the fixed shell by bolts, and a threaded rod is fixed at the output end of the first motor, one end of the threaded rod is movably connected to the inner wall of the other side of the fixed shell by a bearing, and the outer wall of the threaded rod is threadedly connected to the sleeve shell, one side of the sleeve shell abuts against the inner wall of the fixed shell, and the other side of the sleeve shell is movably connected with a rotating column through a bearing, one side of the sleeve shell is fixed to the second motor by bolts, and a gear is fixed at the output end of the second motor, the outer wall of the rotating column is sleeved and fixed with a gear sleeve located in the sleeve shell, and the gear sleeve is meshed with the gear, one end of the connecting rod located in the fixed shell abuts against the rotating column, the middle side of the rotating column is a straight cylinder, and the two sides are oblique cylinders.

[0015] Furthermore, a console is installed on one side of the top of the base, and a cable trough is installed on one side of the console, a pressure cylinder is fixed to one side of the cable trough by bolts, a baffle is slidably connected to one side of the cable trough, and a locking block is fixed to one side of the baffle by bolts, and one side of the locking block is connected to the output end of the pressure cylinder.

[0016] Furthermore, one side of the first top plate is rotatably connected to the third top plate, one side of the top of the base is rotatably connected to the second hydraulic rod, and one end of the second hydraulic rod is slidably connected to the base, a second scraper conveyor is installed on the side of the base located on the third top plate, and a first scraper conveyor is installed on the side of the base located on the cable trough.

[0017] The adjustment method of the large-angle hydraulic support inter-frame rock retaining device includes the following steps:

[0018] Adjustment step 1: Block the largest area on both sides of the hydraulic support frame. It is required that the first mining protection net on the entire rotating shaft and the second mining protection net on the rotating sleeve are in the same plane, and the first mining protection net does not overlap with the second mining protection net. The unfolded state of the two mining protection nets at this time is defined as the initial state of the mining protection net. The first adjustment ring and the second adjustment ring are respectively located on both sides of the rotating shaft with an angle of 180 degrees. At the same time, the two connecting rods in the fixed shell are in contact with the middle plane side of the rotating column.

[0019] Adjustment step 2: Block the gangue on both sides of the hydraulic support and the working surface. At this time, the first motor drives the entire casing to move to one side, so that the spring pushes the connecting rod on one side of the first adjustment plate to move to the inclined side of the rotating column. The entire first adjustment plate begins to drive the entire second adjustment ring to rotate 90 degrees counterclockwise. At this time, the entire second adjustment ring drives the second mining protection net to rotate 90 degrees counterclockwise, and the angle between the entire first mining protection net and the second mining protection net is 90 degrees;

[0020] Or the first motor drives the entire housing to move to the other side, so that the spring pushes the connecting rod of the second adjustment plate to move to the inclined side of the rotating column, and the entire second adjustment plate begins to drive the entire first adjustment ring to rotate 90° clockwise. At this time, the entire first adjustment ring drives the first mining protection net to rotate 90°, so that the angle between the first mining protection net and the second mining protection net is 90°;

[0021] Adjustment step three: First, the entire first motor drives the housing to move downward. When one end of the connecting rod on the entire second adjustment plate begins to contact the inclined surface of the rotating column, the entire second motor starts to work. The output end of the entire second motor is fixed with a gear by spot welding. The gear is engaged with the gear sleeve on the rotating column, causing the entire rotating column to start rotating. The rotation angle is controlled at 180°. At this time, the rotating column pushes the connecting rod on the second adjustment plate to the left, causing the entire first adjustment ring to start rotating, causing the entire rotating shaft to drive the first mining protective net to rotate backward.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In the present invention, the first motor drives the entire sleeve to move on the threaded rod, so that the contact position of the connecting rod connecting the entire first adjustment plate and the second adjustment plate with the rotating column changes, thereby driving the first mining protection net connected to the surface of the rotating shaft on the first adjusting ring and the second mining protection net connected to the surface of the rotating sleeve on the second adjusting ring to rotate, thereby realizing the gangue blocking of the side and working surface of the entire high-angle hydraulic support frame, avoiding the problem of gangue entering the base and causing damage to the hydraulic support or operating and maintenance personnel, and improving the safety of the entire hydraulic support during mining. At the same time, the entire first mining protection net and the second mining protection net are transformed in position at the bottom of the second top plate, which facilitates the normal movement of the mining machinery and is beneficial to the response to the uneven distribution of gangue in the mine body, thereby improving the comprehensive protection of the entire high-angle hydraulic support frame facilities.

[0024] In the present invention, by installing a baffle on one side of the cable trough, when the volume of gangue falling from the mining working face is large and the entire first mining protection net and the second mining protection net are unable to intercept it, the pressure cylinder pushes the baffle on one side of the cable trough to rise, which plays a role in reinforcing the mining protection net and blocking the large volume of gangue falling from the entire working face, thereby improving the ability of the entire hydraulic support to handle emergencies in mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the inter-frame rock retaining device of the high-angle hydraulic support of the present invention;

[0026] Figure 2 This is a schematic diagram of the working structure of the inter-frame rock retaining device of the high-angle hydraulic support of the present invention;

[0027] Figure 3This is a schematic diagram of the working adjustment of the inter-frame rock retaining device of the high-angle hydraulic support of the present invention;

[0028] Figure 4 This is an enlarged schematic diagram of the structure at point A of the present invention;

[0029] Figure 5 This is a schematic diagram of the connection structure between the connecting rod and the rotating column of the present invention;

[0030] Figure 6 It is a schematic diagram of the cross-sectional structure of the shell of the present invention.

[0031] In the figure: 1. base; 2. first hydraulic rod; 3. control console; 4. first top plate; 5. second top plate; 6. side plate; 7. adjusting chamber; 8. rotating gangue retaining mechanism; 801. rotating shaft; 802. rotating sleeve; 803. first adjusting ring; 804. second adjusting ring; 805. first adjusting plate; 806. second adjusting plate; 807. first mining protection net; 808. second mining protection net; 809. reinforcing frame; 9. connecting rod; 10. spring; 11. fixing shell; 12. first motor; 13. threaded rod; 14. sleeve; 15. rotating column; 16. second motor; 17. gear; 18. gear sleeve; 19. third top plate; 20. second hydraulic rod; 21. first scraper conveyor; 22. second scraper conveyor; 23. cable trough; 24. pressure cylinder; 25. locking block; 26. baffle. DETAILED DESCRIPTION

[0032] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] See also Figure 1-6 , the present invention provides a technical solution:

[0034] Example 1

[0035] Usually, multiple sets of high-angle hydraulic supports are installed side by side in the mining tunnel, and the entire mining tunnel is reinforced by multiple sets of high-angle hydraulic supports to avoid the occurrence of overhang in the roof rock layer of the mine goaf, which causes its pressure to be transferred to the coal wall. The pressure on the coal wall increases, forming a pressurized area. Under the action of the additional load, part of the coal on the coal wall is crushed and squeezed into the goaf, resulting in spalling problems, such as Figure 1As shown, two first hydraulic rods 2 are installed on the base 1 of the entire high-angle hydraulic support, and the first hydraulic rod 2 is connected to the second top plate 5 for supporting the top rock layer of the goaf, and a first top plate 4 is installed on one side of the second top plate 5 for blocking the coal and gangue collapsed on the side of the goaf, and a third top plate 19 is installed on one side of the first top plate 4. The third top plate 19 is connected to the second hydraulic rod 20 on the base 1. When it is necessary to mine the working face on one side of the mine, when the entire mining equipment cannot contact the ore body on the working face, it is necessary to move the entire high-angle hydraulic support. When the high-angle hydraulic support moves to one side, the second hydraulic rod 20 contracts, so that part of the minerals abutted by the first top plate 4 on the other side of the mine are conveyed along the third top plate 19 to the second scraper conveyor 22. This type of mineral mining is suitable for mines that have just been mined and the rock layer of the mine is loose. The installation of the second scraper conveyor 22 improves the mining rate of the entire ore.

[0036] A control console 3 is installed on the entire base 1, and a cable trough 23 is installed on one side of the control console 3, and a first scraper conveyor 21 is installed on one side of the cable trough 23 and close to the working surface. Due to the limited height of the supporting coal mining machine body, the height of the vertical plate of the cable trough 23 is relatively low due to the supporting effect of the coal mining machine. When the coal mining machine goes down to cut coal, the coal gangue will roll down along the inclined direction, and the faster it goes down, and there is a risk of entering the hydraulic support frame from the side and working surface of the large-angle hydraulic support. Since the hydraulic frame is a personnel activity area, the risk of injury from gangue is increased. For this reason, Figure 1 As shown, a rotating rock blocking mechanism 8 is installed in the adjustment cavity 7 on both sides of the entire second top plate 5, and the rotating rock blocking mechanism 8 is as shown in FIG. Figure 4 As shown, one end of the rotating shaft 801 is movably connected to the top of the adjusting chamber 7 through a bearing, and the other end of the rotating shaft 801 extends to the oblique upper part of the cable groove 23 on one side of the console 3. The entire rotating shaft 801 is movably connected to a rotating sleeve 802 through a bearing, and a second mining protection net 808 is fixed to one side of the rotating sleeve 802 by bolts, and the entire second mining protection net 808 is unfolded through a reinforcing frame 809 and rotatably connected to the rotating sleeve 802, and the entire rotating shaft 801 is also rotatably connected to the first mining protection net 807. Since the first mining protection net 807 extends a long distance, the range of movement of the first mining protection net 807 is wider and the length is longer. In the initial state, Figure 1 As shown, the first mining protection net 807 and the second mining protection net 808 are both in the deployed state. At this time, the first mining protection net 807 and the second mining protection net 808 have the largest protection area for the side of the hydraulic support, and the entire mining working face is not performing a gangue blocking operation. Since the first mining protection net 807 and the second mining protection net 808 are fully deployed, part of the first mining protection net 807 enters the range of movement of the coal mining equipment, affecting the normal operation of the coal mining equipment;

[0037] When the coal mining equipment moves on the first scraper conveyor 21 and starts the coal mining operation, in order to avoid the first mining protection net 807 from hindering the movement of the coal mining equipment, the first mining protection net 807 between the entire hydraulic supports is required to rotate towards each other, similar to the closing operation of a door. In specific implementation, the first mining protection net 807 on the entire rotating shaft 801 is required to rotate 90 degrees, because the outer wall of the rotating shaft 801 located in the adjustment chamber 7 is fixed with a first adjustment ring 803. Figure 5 As shown, a second adjustment plate 806 is mounted on the first adjustment ring 803. A notch is provided on the entire second adjustment plate 806, and a protrusion on the first adjustment ring 803 is engaged in the notch. When the entire second adjustment plate 806 moves to the right, the entire second adjustment plate 806 pulls the first adjustment ring 803 to rotate. The rotation angle is adjusted by the rightward movement distance of the second adjustment plate 806. When the entire rotating shaft 801 needs to be rotated 90°, the connecting rod 9 connected to one end of the second adjustment plate 806 abuts against one side of the rotating column 15 in the fixed shell 11, as shown in FIG. Figure 5 As shown, the middle side of the entire rotating column 15 is a straight cylinder, and the two sides are inclined cylinders. When the first motor 12 drives the housing 14 connected to the rotating column 15 to move downward, the connecting rod 9 connected to one end of the second adjusting plate 806 begins to contact the inclined surface of one side of the rotating column 15. Because a spring 10 is provided between the entire connecting rod 9 and the fixed shell 11, the entire spring 10 will push the connecting rod 9 to contact the inclined surface of the rotating column 15. At this time, the connecting rod 9 pulls the second adjusting plate 806 to move to the right, so that the entire first adjusting ring 803 drives the entire rotating shaft 801 to rotate a certain angle. When the connecting rod 9 contacts one side of the inclined surface of the rotating column 15 Afterwards, the first mining protection nets 807 connected to the entire rotating shaft 801 begin to move toward each other, and eventually the edges of the two first mining protection nets 807 begin to touch, thereby achieving the purpose of blocking the gangue of the entire mining working face. At the same time, the entire second mining protection net 808 still protects the side of the hydraulic support. Since the entire first mining protection net 807 rotates toward the inside of the hydraulic support, it is out of the working range of the mining equipment on the entire first scraper conveyor 21, and will not hinder the normal operation of the mining equipment. At the same time, it can protect the mining working face and sides of the mine, ensuring the safety of the workers between the hydraulic support frames.

[0038] When the entire staff is repairing the cable or the first scraper conveyor 21, at this time, in order to prevent the waste rock on the side and the working surface from falling, the entire first mining protection net 807 needs to be unfolded on both sides of the first scraper conveyor 21, and the second mining protection net 808 protects the working surface. During specific work, at this time, it is ensured that in the initial state, the first mining protection net 807 does not rotate, and the entire second mining protection net 808 rotates towards each other. Since the entire second mining protection net 808 is connected to the rotating sleeve 802, the rotating sleeve 802 is located in the adjusting chamber 7 and is fixed with a second adjusting ring 804. The second adjusting ring 804 is connected to the first adjusting plate 805. The entire first adjusting plate 805 and the second adjusting plate 806 are the same, and are also provided with a notch. The notch is engaged with the second adjusting ring 804, and a connecting rod 9 is also installed on one side of the first adjusting plate 805, and one end of the connecting rod 9 is in contact with one side of the rotating column 15.

[0039] Since the entire second mining protection net 808 is required to rotate toward each other, Figure 5 As shown, the connecting rod 9 pulls the entire first adjustment plate 805 to move rightward, requiring the first motor 12 to drive the sleeve 14 on the surface of the threaded rod 13 to move upward. At this time, the connecting rod 9 connected to one side of the first adjustment plate 805 begins to contact the inclined surface on the rotating column 15, causing the spring 10 to push the entire first adjustment plate 805 to move rightward. The first adjustment plate 805 pulls the second adjustment ring 804 to rotate, while the rotating sleeve 802 drives the second mining protection net 808 to rotate in the opposite direction, thereby protecting the ore mining working face;

[0040] When it is necessary to inspect and repair the cables in the cable trough 23 between the hydraulic supports, due to the installation gap of the rotating gangue blocking mechanism 8 between the two hydraulic supports, a small amount of gangue can easily enter the cable trough 23. At this time, when cleaning the cable trough 23, the two first mining protection nets 807 on the entire second top plate 5 are required to rotate backwards, and the entire second adjustment plate 806 is required to move to the left. During the specific adjustment, the entire first motor 12 first drives the housing 14 to move downward. When one end of the connecting rod 9 on the entire second adjustment plate 806 begins to contact the inclined surface of the rotating column 15, the entire second motor 16 starts to work. Figure 6 As shown, the output end of the entire second motor 16 is fixed with a gear 17 by spot welding, and the gear 17 is meshed with the gear sleeve 18 on the rotating column 15, causing the entire rotating column 15 to start rotating, and the rotation angle is controlled at 180°. At this time, the inclined cylinder on the rotating column 15 pushes the connecting rod 9 on the second adjustment plate 806 to the left, causing the entire first adjustment ring 803 to start rotating, causing the entire rotating shaft 801 to drive the first mining protection net 807 to rotate backward, and block the gap between the hydraulic supports to prevent maintenance workers from being hit by gangue falling from the working surface when repairing cables.

[0041] Example 2

[0042] Since the size of the falling gangue cannot be controlled during mining on the entire working face, and the entire mining protection net has limited interception of gangue, in order to prevent large pieces of gangue from entering the hydraulic support frame, when the entire mining equipment is working, it is also necessary to start the baffle 26 at the top of the cable trough 23. The entire baffle 26 is slidably connected to one side of the cable trough 23, and a locking block 25 is fixed to one side of the baffle 26 by bolts. One side of the locking block 25 is connected to the pressure cylinder 24 on one side of the console 3, so that the entire pressure cylinder 24 drives the baffle 26 to rise, which plays a role in expanding the safety surface between the hydraulic support frames. At the same time, side plates 6 are added on both sides of the entire first top plate 4 and the second top plate 5 to enhance the protection effect between the hydraulic support frames and further improve the safety between the hydraulic support frames.

[0043] The above contents are merely examples and explanations of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they shall fall within the scope of protection of the present invention.

[0044] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0045] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-angle hydraulic support inter-frame gangue retaining device, comprising a base (1), a first hydraulic rod (2), a first top plate (4) and a second top plate (5), wherein the top of the base (1) is movably connected to the first hydraulic rod (2) via a bearing, and one end of the first hydraulic rod (2) is slidably connected to the second top plate (5), and one side of the second top plate (5) is rotatably connected to the first top plate (4), characterized in that: Side plates (6) are symmetrically fixed to both sides of the second top plate (5) by spot welding, and adjustment cavities (7) are symmetrically opened on both sides of the second top plate (5), and a rotating gangue blocking mechanism (8) is installed in the adjustment cavity (7); The rotating gangue retaining mechanism (8) comprises a rotating shaft (801), a rotating sleeve (802), a first adjusting ring (803), a second adjusting ring (804) and a reinforcing frame (809), the top inner wall of the adjusting chamber (7) is movably connected to the rotating shaft (801) through a bearing, and a rotating sleeve (802) is movably connected to the rotating shaft (801), the outer wall of the rotating shaft (801) and the bottom of the second top plate (5) are fixed with a reinforcing frame (809) by bolts, and a first mining protection net (807) is installed on one side of the reinforcing frame (809), the outer wall of the rotating sleeve (802) is fixed with the reinforcing frame (809) by bolts, and the second top plate (5) is fixed with the reinforcing frame (809) by bolts. A second mining protection net (808) is installed on one side of the reinforcement frame (809); a first adjustment ring (803) is fixedly mounted on the outer wall of the rotating shaft (801) and located in the adjustment cavity (7); a second adjustment plate (806) is clamped in the first adjustment ring (803); the second adjustment plate (806) and the first adjustment ring (803) are in sliding connection; a second adjustment ring (804) is fixedly mounted on the outer wall of the rotating sleeve (802) and located in the adjustment cavity (7); a first adjustment plate (805) is clamped in the second adjustment ring (804); the first adjustment plate (805) and the second adjustment ring (804) are in sliding connection; A fixed shell (11) is installed in the adjustment cavity (7), and a connecting rod (9) is symmetrically slidably connected to one side of the fixed shell (11), one end of the two connecting rods (9) is fixed to one side of the first adjustment plate (805) and the second adjustment plate (806), respectively. One end of the connecting rod (9) passes through the fixed shell (11) and extends into the fixed shell (11). A spring (10) is fixed on the outer wall of the connecting rod (9) located in the fixed shell (11), and one side of the spring (10) is in contact with the inner wall of the fixed shell (11); A first motor (12) is fixed to an inner wall of one side of the fixed shell (11) by means of bolts, and a threaded rod (13) is fixed to an output end of the first motor (12), one end of the threaded rod (13) is movably connected to an inner wall of the other side of the fixed shell (11) by means of a bearing, and a sleeve (14) is threadedly connected to an outer wall of the threaded rod (13), one side of the sleeve (14) abuts against the inner wall of the fixed shell (11), and a rotating shaft (14) is movably connected to the other side of the sleeve (14) by means of a bearing. The rotating column (15) is provided with a second motor (16) fixed to one side of the sleeve (14) by bolts, and a gear (17) is fixed to the output end of the second motor (16). A gear sleeve (18) is fixed on the outer wall of the rotating column (15) and is located in the sleeve (14), and the gear sleeve (18) is meshed and connected with the gear (17). One end of the connecting rod (9) located in the fixed shell (11) is in contact with the rotating column (15). The middle side of the rotating column (15) is a straight cylinder, and the two sides are oblique cylinders.

2. The high-angle hydraulic support inter-frame rock retaining device according to claim 1 is characterized in that: A console (3) is installed on one side of the top of the base (1), and a cable trough (23) is installed on one side of the console (3), a pressure cylinder (24) is fixed to one side of the cable trough (23) by means of bolts, a baffle (26) is slidably connected to one side of the cable trough (23), and a locking block (25) is fixed to one side of the baffle (26) by means of bolts, and one side of the locking block (25) is connected to the output end of the pressure cylinder (24).

3. The high-angle hydraulic support inter-frame rock retaining device according to claim 1 is characterized in that: One side of the first top plate (4) is rotatably connected to a third top plate (19), one side of the top of the base (1) is rotatably connected to a second hydraulic rod (20), and one end of the second hydraulic rod (20) is slidably connected to the base (1), a second scraper conveyor (22) is installed on the side of the base (1) located on the third top plate (19), and a first scraper conveyor (21) is installed on the side of the base (1) located on the cable trough (23).

4. The method for adjusting the rock retaining device between frames of a high-angle hydraulic support according to any one of claims 1 to 3, characterized in that: The following steps are involved: adjust Step 1: Blocking the largest area on both sides of the hydraulic support frame, requiring that the first mining protection net (807) on the entire rotating shaft (801) and the second mining protection net (808) on the rotating sleeve (802) are in the same plane, and the first mining protection net (807) does not overlap with the second mining protection net (808). The unfolded state of the two mining protection nets at this time is defined as the initial state of the mining protection nets. The first adjustment ring (803) and the second adjustment ring (804) are respectively located on both sides of the rotating shaft (801) and the angle between them is 180 degrees. At the same time, the two connecting rods (9) located in the fixed shell (11) are in contact with the middle plane side of the rotating column (15); Adjustment step 2: Block the two sides of the hydraulic support and the working surface. At this time, the first motor (12) drives the entire housing (14) to move to one side, so that the spring (10) pushes the connecting rod (9) on one side of the first adjustment plate (805) to move to the inclined side of the rotating column (15). The entire first adjustment plate (805) starts to drive the entire second adjustment ring (804) to rotate 90 degrees counterclockwise. At this time, the entire second adjustment ring (804) drives the second mining protection net (808) to rotate 90 degrees counterclockwise, and the angle between the entire first mining protection net (807) and the second mining protection net (808) is 90 degrees. Alternatively, the first motor (12) drives the entire housing (14) to move to the other side, so that the spring (10) pushes the connecting rod (9) of the second adjustment plate (806) to move to the inclined side of the rotating column (15), and the entire second adjustment plate (806) starts to drive the entire first adjustment ring (803) to rotate 90° clockwise. At this time, the entire first adjustment ring (803) drives the first mining protection net (807) to rotate 90°, so that the angle between the first mining protection net (807) and the second mining protection net (808) is 90°; Adjustment step three: First, the entire first motor (12) drives the housing (14) to move downward. When one end of the connecting rod (9) on the entire second adjustment plate (806) begins to contact the inclined surface of the rotating column (15), the entire second motor (16) starts to work. The output end of the entire second motor (16) is fixed with a gear (17) by spot welding. The gear (17) is engaged with the gear sleeve (18) on the rotating column (15), causing the entire rotating column (15) to start rotating. The rotation angle is controlled at 180°. At this time, the rotating column (15) pushes the connecting rod (9) on the second adjustment plate (806) to the left, causing the entire first adjustment ring (803) to start rotating, causing the entire rotating shaft (801) to drive the first mining protection net (807) to rotate backward.

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