Supporting and reinforcing structure of stope surrounding rock and using method of supporting and reinforcing structure

Abstract

The invention relates to the technical field of in-well supports, in particular to a stope surrounding rock supporting and reinforcing structure and a using method thereof.The stope surrounding rock supporting and reinforcing structure comprises a movable base, and a turnover supporting plate is rotationally installed on the movable base; the driving assembly is arranged on the movable base, and the driving assembly can drive the turnover supporting plate to deflect relative to the movable base; the extension structure is connected with the turnover supporting plate piece, and the extension structure can enable the supporting face of the movable base to be enlarged when the turnover supporting plate piece deflects upwards; and the sliding structure is arranged on the movable base, the sliding structure comprises a supporting structure and a triggering structure, the supporting structure and the triggering structure are connected with a first roller and a second roller correspondingly, and the stability of the stope surrounding rock structure is improved.

Description

Technical Field

[0001] The invention relates to the technical field of in-well support, in particular to a support and reinforcement structure for surrounding rock of a mine stope and a use method thereof. Background Art

[0002] The mine surrounding rock support reinforcement structure is an indispensable safety facility in mining. Its main function is to support the mine surrounding rock and prevent collapse accidents caused by mine pressure. In mining operations, the geological conditions are complex and changeable, and the mine surrounding rock is under tremendous pressure. The mine support structure is like the "skeleton" of the mine, providing stable support for the mine surrounding rock and ensuring the safe operation of miners.

[0003] Existing mine support structures mostly use hydraulic supports, and in order to achieve better support stability, a set of corresponding hydraulic cylinders needs to be set on each support arm. When operating the mine support structure to reach the supporting state, the operation is rather cumbersome, and damage to a single hydraulic cylinder will cause support failure. The integration is low, and replacement and maintenance are difficult. Summary of the invention

[0004] The object of the present invention is to provide a support and reinforcement structure for surrounding rock of a stope and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A support and reinforcement structure for surrounding rock of a stope, comprising: A movable base, on which a folding support plate is rotatably mounted; A driving assembly, disposed on the mobile base, the driving assembly being capable of driving the folding support plate to deflect relative to the mobile base; An extension structure connected to the folding support plate, wherein the extension structure can increase the support surface of the movable base when the folding support plate is deflected upward; The sliding structure is arranged on the movable base, and the sliding structure comprises a supporting structure and a triggering structure, and the supporting structure and the triggering structure are respectively connected with a first roller and a second roller.

[0006] As a further solution of the present invention: the driving assembly includes a driving device installed on the mobile base, the output shaft of the driving device is coaxially connected to a screw rod rotatably installed on the mobile base, the screw rod is provided with a threaded sleeve plate threadably matched therewith, and the threaded sleeve plate is slidably connected to the mobile base; The driving assembly also includes a grooved shaft assembly connecting the threaded sleeve and the flip support plate. When the threaded sleeve moves along the length direction of the screw rod, the grooved shaft assembly can drive the flip support plate to deflect.

[0007] As a further solution of the present invention: the slot shaft kit includes a connecting plate connected to the flip support plate, and the connecting plate is provided with a hysteresis groove along its length direction; The groove shaft kit also includes a connecting frame connected to the threaded sleeve plate, and an engaging wheel is rotatably mounted on one end of the connecting frame away from the threaded sleeve plate, and the engaging wheel can roll in the hysteresis groove.

[0008] As a further solution of the present invention: the flip support plate comprises a first support arm rotatably mounted on the mobile base, the first support arm is connected to the connecting plate, and the retardation groove is parallel to the first support arm, and the first support arm is adapted to the support rod mounted on the mobile base; The flip support plate also includes a second support arm rotatably connected to an end of the first support arm away from the movable base. The second support arm is connected to the first support arm via a reverse support structure. The reverse support structure can cause the second support arm to deflect upward relative to the first support arm when the first support arm deflects upward relative to the movable base.

[0009] As a further solution of the present invention: the reverse support structure includes a turntable rotatably mounted on the first support arm, and two symmetrical connection points are arranged on the turntable, one of which is connected to the connecting frame through a first hinge rod, and the other connection point is connected to the second support arm through a second hinge rod.

[0010] As a further solution of the present invention: the extension structure comprises an extension plate slidably mounted on the movable base, and one end of the extension plate is provided with a first inclined surface; The extension structure also includes a follower sleeve connected to the rotating shaft of the first support arm. The interior of the follower sleeve is a hollow structure, and a telescopic plate is slidably installed in the follower sleeve. The end of the telescopic plate away from the follower sleeve is connected to the extension plate.

[0011] As a further solution of the present invention: the sliding structure comprises a support frame rotatably mounted on the mobile base and a lifting frame slidably mounted on the mobile base, the support frame is rotatably connected to the second roller, and the lifting frame is rotatably connected to the first roller; The sliding structure also includes a trigger structure connecting the lifting frame and the extension plate.

[0012] As a further solution of the present invention: the trigger structure includes an abutment shaft rotatably connected to the lifting frame and a trigger member connected to the extension plate, and the trigger member is provided with a second inclined surface and a straight surface, and the second inclined surface can cooperate with the abutment shaft to guide the abutment shaft to move to the straight surface.

[0013] A method for using the support and reinforcement structure of the surrounding rock of a stope as described above comprises the following steps: Step 1: retract the folded support plate and press down the support frame so that the first roller and the second roller are in contact with the ground, and the movable base is supported at the same time; Step 2: After the mobile base is pulled to a predetermined position, the support frame is released, and one side of the mobile base is in contact with the ground; Step 3: Control the driving assembly to drive the folding support plate to deflect, and move the extension structure to increase the support surface of the mobile base, while the sliding structure is fully in contact and the mobile base is completely in contact with the ground; Step 4: Fold the support plate and deflect it into place to support the surrounding rock of the mining area.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By setting the driving assembly and the folding support plate, the first support arm and the second support arm are mechanically linked, so that the two can deflect synchronously, so that the first support arm and the second support arm can quickly switch to the supporting state, and compared with the traditional control method using multiple groups of hydraulic cylinders, the control method is simpler, and the integration is higher, and it is more convenient for inspection and maintenance; By setting the extension structure, when the first support arm rotates relative to the mobile base, the extension plate can move toward the outside of the mobile base, so that the mobile base can obtain a larger support surface during the support process, thereby improving the stability of the mobile base in the support state, and under the action of the first inclined surface, it can compress stones, coal slag, etc. on the ground, so that the bottom surface of the lower part of the extension plate is more solid, so as to further improve the stability of the mobile base in the support state; By setting the sliding structure, the mobile base can be completely lifted up and separated from the ground, so that the mobile base can be moved more conveniently and moved to a predetermined position more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a structural schematic diagram of an embodiment of a support and reinforcement structure for surrounding rock of a mining area.

[0016] Figure 2 This is a schematic structural diagram from another angle in an embodiment of a support and reinforcement structure for surrounding rock of a mining area.

[0017] Figure 3 The figure is a schematic structural diagram of a first support arm and an extension structure in one embodiment of a support and reinforcement structure for surrounding rock of a mining area.

[0018] Figure 4 A schematic diagram of the partial structure of an extended structure in an embodiment of a support and reinforcement structure for surrounding rock of a mining area.

[0019] Figure 5 The present invention is a schematic structural diagram of a driving assembly in one embodiment of a supporting and reinforcing structure for surrounding rock of a mining area.

[0020] Figure 6 This is an exploded view of the structure of the drive assembly in one embodiment of the support and reinforcement structure of the surrounding rock of the mining area.

[0021] Figure 7 The figure is a schematic structural diagram of a folded support plate in one embodiment of a support and reinforcement structure for surrounding rock of a mining area.

[0022] In the figure: 1. movable base; 2. extension plate; 201. first inclined surface; 3. driving device; 4. screw; 5. threaded sleeve; 6. connecting frame; 7. engaging wheel; 8. first support arm; 9. connecting plate; 901. hysteresis groove; 10. follower sleeve; 11. telescopic plate; 12. trigger member; 1201. flat surface; 1202. second inclined surface; 13. lifting frame; 14. first roller; 15. abutment shaft; 16. support frame; 17. second roller; 18. support rod; 19. first hinge rod; 20. turntable; 21. second hinge rod; 22. second support arm. DETAILED DESCRIPTION

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

[0024] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0025] See also Figure 1 to Figure 7 In an embodiment of the present invention, a support and reinforcement structure for surrounding rock of a mining area includes: a mobile base 1, a driving assembly, an extension structure and a sliding structure.

[0026] A folding support plate is rotatably mounted on the mobile base 1; The driving assembly is disposed on the mobile base 1, and the driving assembly can drive the folding support plate to deflect relative to the mobile base 1; The driving assembly comprises a driving device 3 mounted on the mobile base 1, the output shaft of the driving device 3 is coaxially connected with a screw rod 4 rotatably mounted on the mobile base 1, the screw rod 4 is provided with a threaded sleeve 5 threadably matched therewith, and the threaded sleeve 5 is slidably connected to the mobile base 1; The driving assembly also includes a slotted shaft assembly connecting the threaded sleeve 5 and the flip support plate. When the threaded sleeve 5 moves along the length direction of the screw rod 4, the slotted shaft assembly can drive the flip support plate to deflect.

[0027] When in use, the drive device 3 is controlled to work so that the screw rod 4 connected thereto rotates, so that the threaded sleeve 5 threadedly connected to the screw rod 4 can move along the length direction of the screw rod 4, and the flip support plate is driven to deflect through the slot shaft kit, thereby performing the support operation on the surrounding rock of the mining area. Among them, since the screw rod 4 and the threaded sleeve 5 are connected in a threaded manner, and the threaded connection has a labor-saving effect, when driving the flip support plate to move, the load of the drive device 3 is lower, and thus a smaller drive device 3 can be selected, so that the manufacturing cost of the entire structure is lower, and the weight is also lighter and more convenient to move. At the same time, the threaded connection has a self-locking effect, so that after the flip support plate is deflected to a predetermined angle, even if the drive device 3 is powered off and stops working, the flip support plate can still maintain the original angle without collapsing, thereby improving the stability in the support state.

[0028] The slot shaft kit includes a connecting plate 9 connected to the flip support plate, and the connecting plate 9 is provided with a retardation groove 901 along its length direction; The groove shaft kit also includes a connecting frame 6 connected to the threaded sleeve 5. An engaging wheel 7 is rotatably mounted on one end of the connecting frame 6 away from the threaded sleeve 5. The engaging wheel 7 can roll in the hysteresis groove 901.

[0029] In the initial state, the engaging wheel 7 is at the end of the hysteresis groove 901 away from the movable base 1, and when the threaded sleeve 5 moves, it can drive the connecting frame 6 connected thereto to move, and enable the engaging wheel 7 to move along the length direction of the hysteresis groove 901, thereby driving the flipping support plate to deflect, wherein the engaging wheel 7 and the hysteresis groove 901 are connected in a rolling manner, which makes the friction between the two smaller and can further reduce the load of the driving device 3.

[0030] See also Figure 1 , Figure 2 , Figure 5 , Figure 7The flip support plate includes a first support arm 8 rotatably mounted on the mobile base 1, the first support arm 8 is connected to the connecting plate 9, and the retardation groove 901 is parallel to the first support arm 8, the first support arm 8 is adapted to the support rod 18 mounted on the mobile base 1, and in an initial state, the first support arm 8 is in a state of abutting against the support rod 18, at which time the support rod 18 can support the first support arm 8, so that in the initial state, there will be no large force between the retardation groove 901 and the engaging wheel 7, thereby preventing the rotating shaft of the engaging wheel 7 from being subjected to a large force for a long time and causing bearing damage.

[0031] The flip support plate also includes a second support arm 22 rotatably connected to an end of the first support arm 8 away from the movable base 1, and the second support arm 22 is connected to the first support arm 8 via a reverse support structure, and the reverse support structure can make the second support arm 22 deflect upward relative to the first support arm 8 when the first support arm 8 deflects upward relative to the movable base 1, and the reverse support structure includes a turntable 20 rotatably mounted on the first support arm 8, and two symmetrical connection points are arranged on the turntable 20, one of which is connected to the connecting frame 6 via a first hinge rod 19, and the other is connected to the second support arm 22 via a second hinge rod 21.

[0032] When the engaging wheel 7 moves along the length direction of the lag groove 901, the first support arm 8 will deflect relative to the movable base 1. At this time, the connecting frame 6 will also drive the turntable 20 to rotate through the first hinge rod 19, and during the rotation of the turntable 20, the turntable 20 will also drive the second support arm 22 to deflect upward relative to the first support arm 8 through the second hinge rod 21, that is, the mechanical linkage between the first support arm 8 and the second support arm 22 is realized, so that the two can deflect synchronously, so that the first support arm 8 and the second support arm 22 can quickly switch to the supporting state, and compared with the traditional control method using multiple groups of hydraulic cylinders, the control method is simpler, and at the same time, the integration is higher, and it is more convenient for inspection and maintenance.

[0033] See also Figure 1~Figure 3 , the extension structure is connected to the folding support plate, and the extension structure can increase the support surface of the mobile base 1 when the folding support plate is deflected upward; The extension structure comprises an extension plate 2 slidably mounted on the mobile base 1, and a first inclined surface 201 is provided at one end of the extension plate 2; The extension structure also includes a follower sleeve 10 connected to the rotating shaft of the first support arm 8. The interior of the follower sleeve 10 is a hollow structure, and a telescopic plate 11 is slidably installed in the follower sleeve 10. The end of the telescopic plate 11 away from the follower sleeve 10 is connected to the extension plate 2.

[0034] When the first support arm 8 rotates relative to the mobile base 1, the rotating shaft of the first support arm 8 will also drive the follower sleeve 10 to deflect. At this time, the telescopic plate 11 rotates with the follower sleeve 10 and drives the extension plate 2 connected to the telescopic plate 11 to move toward the outside of the mobile base 1, so that the mobile base 1 can obtain a larger supporting surface during the supporting process, thereby improving the stability of the mobile base 1 in the supporting state.

[0035] Furthermore, since a first inclined surface 201 is provided at the front end of the extension plate 2 in the movement direction, when the extension plate 2 extends outward, it can compress stones, coal slag, etc. on the mining ground, making the bottom surface of the lower part of the extension plate 2 more solid, thereby further improving the stability of the mobile base 1 in the supporting state.

[0036] See also Figure 1 , Figure 4 The sliding structure is arranged on the mobile base 1, and the sliding structure includes a supporting structure and a triggering structure, and the supporting structure and the triggering structure are respectively connected with a first roller 14 and a second roller 17; The sliding structure includes a support frame 16 rotatably mounted on the mobile base 1 and a lifting frame 13 slidably mounted on the mobile base 1, the support frame 16 is rotatably connected to the second roller 17, and the lifting frame 13 is rotatably connected to the first roller 14; The sliding structure also includes a trigger structure connecting the lifting frame 13 and the extension plate 2, and the trigger structure includes an abutment shaft 15 rotatably connected to the lifting frame 13 and a trigger member 12 connected to the extension plate 2, and the trigger member 12 is provided with a second inclined surface 1202 and a straight surface 1201, and the second inclined surface 1202 can cooperate with the abutment shaft 15 to guide the abutment shaft 15 to move to the straight surface 1201.

[0037] In the initial state, when the extension plate 2 is in the retracted state, the abutment shaft 15 is in abutment with the flat surface 1201. At this time, the lifting frame 13 is at the lower end of its stroke, and the first roller 14 is in a state of protruding from the lower surface of the mobile base 1. When downward pressure is applied to the support frame 16, the support frame 16 can abut the second roller 17 with the ground and lift one end of the mobile base 1. At this time, under the action of the first roller 14 and the second roller 17, the mobile base 1 is separated from the ground, so that the mobile base 1 can be moved more conveniently and moved to the predetermined position more conveniently.

[0038] When performing the supporting operation, the supporting frame 16 can be turned over first. At this time, the second roller 17 will be separated from the ground, and one end of the mobile base 1 will be in contact with the ground. At this time, the mobile base 1 has a certain stability. When the extension plate 2 extends outward, the trigger member 12 can be separated from the abutment shaft 15, so that the other end of the mobile base 1 is in contact with the ground. At this time, the entire mobile base 1 completely touches the ground, so that when the supporting state is reached, the mobile base 1 has better stability.

[0039] As an embodiment of the present invention, a method for using the support and reinforcement structure of the surrounding rock of a stope is also proposed, comprising the following steps: Step 1: retract the folded support plate and press down the support frame 16, so that the first roller 14 and the second roller 17 are in contact with the ground, and the movable base 1 is supported at the same time; Step 2: After the mobile base 1 is pulled to a predetermined position, the support frame 16 is released, and one side of the mobile base 1 is in contact with the ground; Step 3: Control the driving assembly to drive the folding support plate to deflect, and move the extension structure to increase the support surface of the mobile base 1, while the sliding structure is fully in contact, and the mobile base 1 completely touches the ground; Step 4: Fold the support plate and deflect it into place to support the surrounding rock of the mining area.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A support and reinforcement structure for surrounding rock of a stope, characterized in that: include: A movable base (1), wherein a folding support plate is rotatably mounted on the movable base (1); A driving assembly, arranged on the movable base (1), the driving assembly being capable of driving the folding support plate to deflect relative to the movable base (1); an extension structure connected to the folding support plate, the extension structure being capable of increasing the support surface of the movable base (1) when the folding support plate is deflected upward; A sliding structure is arranged on the mobile base (1), the sliding structure comprising a supporting structure and a triggering structure, the supporting structure and the triggering structure being respectively connected to a first roller (14) and a second roller (17).

2. A support and reinforcement structure for surrounding rock of a stope according to claim 1, characterized in that: The driving assembly comprises a driving device (3) mounted on the mobile base (1), the output shaft of the driving device (3) being coaxially connected to a screw rod (4) rotatably mounted on the mobile base (1), the screw rod (4) being provided with a threaded sleeve (5) threadably matched therewith, the threaded sleeve (5) being slidably connected to the mobile base (1); The driving assembly further comprises a slotted shaft assembly connecting the threaded sleeve (5) and the flip support plate, and when the threaded sleeve (5) moves along the length direction of the screw rod (4), the slotted shaft assembly can drive the flip support plate to deflect.

3. A support and reinforcement structure for surrounding rock of a stope according to claim 2, characterized in that: The slot shaft kit comprises a connecting plate (9) connected to the flip support plate, and the connecting plate (9) is provided with a retardation groove (901) along its length direction; The grooved shaft kit also includes a connecting frame (6) connected to the threaded sleeve (5), and an engaging wheel (7) is rotatably mounted on one end of the connecting frame (6) away from the threaded sleeve (5), and the engaging wheel (7) is capable of rolling in the retardation groove (901).

4. A support and reinforcement structure for surrounding rock of a stope according to claim 3, characterized in that: The flip support plate comprises a first support arm (8) rotatably mounted on the mobile base (1), the first support arm (8) being connected to the connecting plate (9), the retardation groove (901) being parallel to the first support arm (8), and the first support arm (8) being adapted to a support rod (18) mounted on the mobile base (1); The flip support plate also includes a second support arm (22) rotatably connected to an end of the first support arm (8) away from the movable base (1), and the second support arm (22) is connected to the first support arm (8) via a reverse support structure, and the reverse support structure can cause the second support arm (22) to deflect upward relative to the first support arm (8) when the first support arm (8) deflects upward relative to the movable base (1).

5. A support and reinforcement structure for surrounding rock of a stope according to claim 4, characterized in that: The reverse support structure comprises a turntable (20) rotatably mounted on the first support arm (8), and two symmetrical connection points are arranged on the turntable (20), one of the connection points is connected to the connecting frame (6) via a first hinge rod (19), and the other connection point is connected to the second support arm (22) via a second hinge rod (21).

6. A support and reinforcement structure for surrounding rock of a stope according to claim 4, characterized in that: The extension structure comprises an extension plate (2) slidably mounted on the mobile base (1), and one end of the extension plate (2) is provided with a first inclined surface (201); The extension structure further comprises a follower sleeve (10) connected to the rotating shaft of the first support arm (8); the interior of the follower sleeve (10) is a hollow structure, and a telescopic plate (11) is slidably mounted inside the follower sleeve (10); an end of the telescopic plate (11) away from the follower sleeve (10) is connected to the extension plate (2).

7. A support and reinforcement structure for surrounding rock of a stope according to claim 6, characterized in that: The sliding structure comprises a support frame (16) rotatably mounted on the mobile base (1) and a lifting frame (13) slidably mounted on the mobile base (1), the support frame (16) being rotatably connected to the second roller (17), and the lifting frame (13) being rotatably connected to the first roller (14); The sliding structure also includes a trigger structure connecting the lifting frame (13) and the extension plate (2).

8. A support and reinforcement structure for surrounding rock of a stope according to claim 7, characterized in that: The trigger structure comprises an abutment shaft (15) rotatably connected to the lifting frame (13) and a trigger member (12) connected to the extension plate (2); the trigger member (12) is provided with a second inclined surface (1202) and a straight surface (1201); the second inclined surface (1202) can cooperate with the abutment shaft (15) to guide the abutment shaft (15) to move onto the straight surface (1201).

9. A method for using the support and reinforcement structure for surrounding rock of a stope as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: retract the folded support plate and press down the support frame (16) so that the first roller (14) and the second roller (17) are in contact with the ground, and the movable base (1) is propped up at the same time; Step 2: After the mobile base (1) is pulled to a predetermined position, the support frame (16) is released, and one side of the mobile base (1) is in contact with the ground; Step 3: Control the movement of the driving assembly to drive the folding support plate to deflect, and move the extension structure to increase the support surface of the mobile base (1), while the sliding structure is fully in contact and the mobile base (1) is completely in contact with the ground; Step 4: Fold the support plate and deflect it into place to support the surrounding rock of the mining area.

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