Tray suitable for recoverable anchor cable (rod) of coal mine

Abstract

The utility model relates to the technical field of anchor cable (rod) trays, in particular to a tray suitable for a recoverable anchor cable (rod) of a coal mine, which comprises a tray body, a boss is fixedly connected to one side face of the tray body, a groove communicated with the inside of the boss is arranged on the other side face of the tray body, a supporting column is fixedly embedded in the boss, and the supporting column is connected with the tray body. Rectangular frames are fixedly connected to the four edges of the side faces, corresponding to the bosses, of the tray body. According to the utility model, the extrusion discs are moved to a relatively flat area by moving the rotating plate, then the extrusion discs at the corresponding positions can be moved through the rotation of the screw until the extrusion discs are in close contact with the inner wall of the roadway, and then the other three extrusion discs are in close contact with the inner wall of the roadway in the same way, so that the roadway can be extruded. At the moment, the reverse acting force on the tray body is more uniform, so that the deformation of the tray body can be effectively reduced, and the recovery rate of the tray body can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anchor cable (rod) tray, and specifically relates to a tray suitable for recoverable anchor cable (rod) of coal mine. BACKGROUND

[0002] The anchor cable (rod) tray is an important accessory used in the anchor net cable support of the underground roadway of coal mine, and the performance directly affects the supporting effect of the anchor cable (rod). After the roadway is excavated, the stress of surrounding rock will be redistributed, the anchor cable (rod) support system can improve the strength, structure and stress of the surrounding rock of the roadway to different degrees, avoid the damage and separation of the surrounding rock, and ensure the stability and integrity of the surrounding rock.

[0003] At present, when the existing anchor cable (rod) tray is used, the tray is usually fixed on the inner wall of the roadway by the anchor cable or anchor rod. Since the top surface of the tray is a plane and the inner wall of the roadway is usually uneven, the top surface of the tray is difficult to completely contact with the inner wall of the roadway during fixing, which leads to the deformation of the tray due to uneven force distribution during fixing, thereby reducing the supporting force of the tray on the roadway. Moreover, the deformed tray needs to be corrected at a higher cost, so the recovery rate of the tray is reduced. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a tray suitable for recoverable anchor cable (rod) of coal mine to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0006] A tray suitable for recoverable anchor cable (rod) of coal mine, comprising a tray body, one side of the tray body is fixedly connected with a boss, the other side of the tray body is provided with a groove in communication with the inside of the boss, a support column is embedded and fixed in the inside of the boss, four edges of the side of the tray body corresponding to the boss are fixedly connected with rectangular frames, a sliding block is slidingly connected in the inside of the rectangular frame, a rotating shaft is fixedly connected to the top end of the sliding block, a rotating plate is rotatably connected to the top end of the rotating shaft, a screw rod is screwed through the top surface of the rotating plate away from the rotating shaft at the corresponding position, and an extrusion disc is rotatably connected to the bottom end of the screw rod.

[0007] Further, a rotating block is fixedly connected to the top end of the screw rod.

[0008] Further, a slide rod is fixedly connected between the inner two end sides of the rectangular frame and slidingly penetrates the sliding block at the corresponding position.

[0009] Further, a reinforcing rib is fixedly connected to the inner wall of the groove.

[0010] Further in, the outer wall of the support column outside the boss is annular equiangularly fixedly connected with four connecting ribs, one end of the connecting rib is fixedly connected with a connecting ring fixedly connected with the tray body.

[0011] Further in, the side surface of the tray body is provided with a bushing corresponding to the connecting ring, and the bushing is inserted with an insertion rod.

[0012] Further in, one end of the support column is flush with the side surface of the tray body.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. By moving the rotating plate, the extrusion disc is moved to a relatively flat area, then the extrusion disc at the corresponding position is moved by rotating the screw rod, until the extrusion disc is in close contact with the inner wall of the roadway, then the other three extrusion discs are in close contact with the inner wall of the roadway in the same way, at this time, the reverse force acting on the tray body is more uniform, thus the deformation of the tray body can be effectively reduced, thereby the recovery rate of the tray body is improved.

[0015] 2. By the cooperation of the plurality of reinforcing ribs and the support column, the deformation of the boss caused by excessive reverse force during the fixation of the tray body can be prevented, the side surface of the tray body is abutted with the support point of the inner wall of the roadway, then a hole is drilled in the inner wall of the roadway according to the position of the bushing by using a tool, after the drilling is completed, the insertion rod is inserted into the hole from the connecting ring and the bushing at the corresponding position, thereby the strength of the tray body is increased during the fixation, the deformation of the tray body caused by excessive force can be prevented, and the service life of the tray body is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall structure schematic view of the utility model;

[0017] Figure 2 is the top surface schematic view of the tray body in the utility model;

[0018] Figure 3 is the bottom surface schematic view of the tray body in the utility model;

[0019] Figure 4 is the extrusion disc schematic view in the utility model.

[0020] In the drawing: 1, tray body; 11, boss; 12, support column; 13, reinforcing rib; 14, connecting rib; 15, connecting ring; 16, insertion rod; 2, rectangular frame; 21, sliding block; 22, rotating shaft; 23, rotating plate; 24, screw rod; 25, extrusion disc; 26, rotating block; 27, sliding rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0022] Please refer to Figures 1-4 In the embodiments of the present application, a tray suitable for a recyclable anchor cable (rod) of a coal mine comprises a tray body 1, a boss 11 fixedly connected to one side of the tray body 1, a groove communicated with the interior of the boss 11 formed in the other side of the tray body 1, a support column 12 embedded and fixed in the interior of the boss 11, a rectangular frame 2 fixedly connected to each of the four edges of the side of the tray body 1 corresponding to the boss 11, a sliding block 21 slidably connected to the interior of the rectangular frame 2, a rotating shaft 22 fixedly connected to the top end of the sliding block 21, a rotating plate 23 rotatably connected to the top end of the rotating shaft 22, a screw rod 24 screwed through the top surface of the rotating plate 23 away from the rotating shaft 22 at the corresponding position, and an extrusion disc 25 rotatably connected to the bottom end of the screw rod 24.

[0023] Specifically, firstly, holes are drilled in the inner wall of the tunnel using drilling tools. Then, anchor bolts or anchor cables are inserted into the drilled holes in the inner wall of the tunnel, and special materials are used to fix the anchor bolts or anchor cables in the drilled holes. Then, the pallet body 1 is inserted into the outer side of the anchor bolt or anchor cable. If the anchor bolt can be fixed to one end by using a nut to engage with the thread on the outer side of the anchor bolt, the top surface of the pallet body 1 can be tightly against the inner wall of the tunnel. If an anchor cable is used, a special tool can be used to fix the pallet body 1 to one end of the anchor cable, and the top surface of the pallet body 1 can be tightly against the inner wall of the tunnel. At this time, the tunnel can be supported. Since the support column 12 is embedded and fixed inside the boss 11, it can prevent the boss 11 from being deformed by pressure when fixing the pallet body 1. Since the inner wall of the tunnel is uneven during the excavation process, while the surface of the pallet body 1 is smooth, the inner wall of the tunnel is uneven. The surface is flat, which leads to uneven reverse force applied to the pallet body 1 by the roadway when it is fixed. This may cause the pallet body 1 to deform due to uneven force, resulting in poor support effect on the roadway and a decrease in the recovery rate of the pallet body 1. Therefore, before the pallet body 1 is completely fixed, the rotating plate 23 can be moved to a relatively flat area. Then, by rotating the screw 24, the corresponding extrusion plate 25 can be moved until the extrusion plate 25 is in close contact with the inner wall of the roadway. Then, the other three extrusion plates 25 are brought into close contact with the inner wall of the roadway in the same way. At this time, the reverse force on the pallet body 1 can be more even, thus effectively reducing the deformation of the pallet body 1 and improving the recovery rate of the pallet body 1.

[0024] Example 1

[0025] like Figure 4 As shown, in this embodiment, a rotating block 26 is fixedly connected to the top of the screw 24, and a sliding rod 27 is fixedly connected between the two inner ends of the rectangular frame 2, which slides through the slider 21 at the corresponding position.

[0026] In this embodiment, by using a tool to make the rotating block 26 drive the screw 24 at the corresponding position to rotate, the extrusion plate 25 at the corresponding position can be brought into close contact with the inner wall of the tunnel. The slider 21 at the corresponding position can slide inside the rectangular frame 2 at the corresponding position through the slide bar 27, so that the extrusion plate 25 can be moved to a relatively flat area in the tunnel.

[0027] Example 2

[0028] like Figure 2 and Figure 3As shown, in the embodiment, the outer wall of the support column 12 is fixedly connected with the reinforcing rib 13 fixedly connected with the inner wall of the groove, the outer wall of the support column 12 located outside the boss 11 is annular equiangularly fixedly connected with four connecting ribs 14, one end of the connecting rib 14 is fixedly connected with the connecting ring 15 fixedly connected with the tray body 1, the side surface of the tray body 1 is correspondingly provided with the insertion hole, the insertion rod 16 is inserted into the insertion hole, and one end of the support column 12 is flush with the side surface of the tray body 1.

[0029] In the embodiment, the support column 12 cooperates with the reinforcing rib 13 to prevent the boss 11 from being deformed by excessive reverse force when the tray body 1 is fixed, the side surface of the tray body 1 is abutted against the inner wall support point of the roadway, then a hole is drilled in the inner wall of the roadway according to the position of the insertion hole by using a tool, after the drilling is completed, the insertion rod 16 is inserted into the hole from the connecting ring 15 and the insertion hole at the corresponding position, so that the strength of the tray body 1 is increased when the tray body 1 is fixed, the deformation of the tray body 1 caused by excessive force is prevented, and the service life of the tray body 1 is improved.

[0030] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Accordingly, the embodiments should be considered as exemplary only, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to embrace all changes and modifications that fall within the meaning and range of equivalents of the claims. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0031] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A tray suitable for a recoverable anchor cable (rod) of a coal mine, comprising a tray body (1), one side of the tray body (1) is fixedly connected with a boss (11), and the other side of the tray body (1) is provided with a groove in communication with the inside of the boss (11), characterized in that, The inside of the boss (11) is embedded with a supporting column (12), the side of the corresponding boss (11) of the tray body (1) is fixedly connected with a rectangular frame (2) at four edges, the inside of the rectangular frame (2) is slidably connected with a sliding block (21), the top end of the sliding block (21) is fixedly connected with a rotating shaft (22), the top end of the rotating shaft (22) is rotatably connected with a rotating plate (23), the top surface of the rotating plate (23) is penetrated and screwed with a screw rod (24) away from the rotating shaft (22) at the corresponding position, the bottom end of the screw rod (24) is rotatably connected with a pressing disc (25); The inside of the rectangular frame (2) is fixedly connected with a sliding rod (27) slidably penetrating the sliding block (21) at both end sides.

2. A tray suitable for use with a recoverable anchor cable (rod) for a coal mine according to claim 1, characterised in that, The top end of the screw rod (24) is fixedly connected with a rotating block (26).

3. A pallet suitable for use with a recoverable anchor cable (rod) for a coal mine according to claim 1, characterised in that, The outer wall of the supporting column (12) is fixedly connected with a reinforcing rib (13) fixedly connected with the inner wall of the groove.

4. A pallet suitable for use with a recoverable anchor (rod) for a coal mine according to claim 3, characterised in that, The outer wall of the supporting column (12) located outside the boss (11) is annularly and equiangularly fixedly connected with four connecting ribs (14), one end of the connecting rib (14) is fixedly connected with a connecting ring (15) fixedly connected with the tray body (1).

5. A tray suitable for use with a recoverable anchor cable (rod) for a coal mine according to claim 4, characterised in that, The side of the tray body (1) is penetrated and opened with a jack (16) at the corresponding connecting ring (15).

6. A pallet suitable for use with a recoverable anchor cable (rod) for a coal mine according to claim 5, characterised in that, One end of the supporting column (12) is flush with the side of the tray body (1).

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