Slurry spraying equipment for reinforcing coal mine tunneling roadway wall

Abstract

The utility model relates to the field of roadway reinforcement, in particular to coal mine tunneling roadway wall reinforcement guniting equipment. The coal mine tunneling roadway wall reinforcing and guniting equipment can rotate along the roadway wall to vibrate and scrape off an old guniting layer, operation is easy, manpower is saved, binding force is conveniently improved, the chiseling treatment efficiency and the reinforcing efficiency are improved, and using convenience is improved. A coal mine tunneling roadway wall reinforcing guniting device comprises a crawler, a base and the like, and the crawler is connected with the base. The rotary frame rotates to enable the chiseling head to rotate, the cam rotates to enable the sliding frame to move, then the electric push rod is driven by the double-shaft motor to rotate to conduct chiseling treatment on the roadway wall, and therefore an old guniting layer can be shaken and scraped off by rotating along the roadway wall, operation is easy, manpower is saved, and binding power can be improved conveniently; and the chiseling treatment efficiency and the reinforcing efficiency are improved, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the field of roadway reinforcement, in particular to a shotcreting device for reinforcing the wall of a coal mine tunneling roadway. Background Art

[0002] A coal mine refers to an underground or open-pit mine for extracting coal resources. Coal is an important fossil energy source, widely used in multiple fields such as power generation, metallurgy, and chemical industry. Shotcreting for reinforcing the wall of a tunneling roadway is a commonly used technique in underground projects such as mines and tunnels, aiming to improve the stability of the roadway wall, prevent the surrounding rock from loosening and collapsing, and ensure construction and operation safety.

[0003] For the existing shotcreting for roadway wall reinforcement, usually, workers first use chiseling tools to process the old shotcrete layer, and then use a shotcreting device to spray the roadway wall. The operation is rather troublesome, consuming time and manpower, thus affecting the efficiency of chiseling treatment and the efficiency of reinforcement.

[0004] Therefore, it is necessary to design a shotcreting device for reinforcing the wall of a coal mine tunneling roadway that can rotate along the roadway wall to vibrate and scrape off the old shotcrete layer, with simple operation, labor-saving, facilitating the improvement of bonding force, enhancing the efficiency of chiseling treatment and the efficiency of reinforcement, and improving the convenience of use. Summary of the Utility Model

[0005] In order to overcome the shortcomings that for the existing shotcreting for roadway wall reinforcement, workers first use chiseling tools for treatment and then use a shotcreting device for spraying, with rather troublesome operation, consuming time and manpower, thus affecting the efficiency of chiseling treatment and the efficiency of reinforcement, the utility model provides a shotcreting device for reinforcing the wall of a coal mine tunneling roadway that can rotate along the roadway wall to vibrate and scrape off the old shotcrete layer, with simple operation, labor-saving, facilitating the improvement of bonding force, enhancing the efficiency of chiseling treatment and the efficiency of reinforcement, and improving the convenience of use.

[0006] Technical Solution: The shotcreting device for reinforcing the wall of a coal mine tunneling roadway includes a crawler vehicle, a base, a fixed frame, a dual-axis motor, a telescopic rod, a shotcreting pipe, a nozzle, and a chiseling mechanism. The base is connected to the crawler vehicle. The upper side of the right part of the base is connected to the fixed frame, and the fixed frame is connected to the dual-axis motor. The left part of the base is rotatably connected to the telescopic rod, and the telescopic rod is connected to the output shaft of the left part of the dual-axis motor. The right side of the fixed end of the telescopic rod is connected to the shotcreting pipe, and the shotcreting pipe is connected to the base. The telescopic end of the telescopic rod is connected to the nozzle, and the nozzle is connected to the shotcreting pipe. The upper side of the right part of the base is provided with a chiseling mechanism for treating the old shotcrete layer.

[0007] Further explanation, the roughening mechanism includes an electric push rod, a general motor, a rotating frame, bevel gears, cams, a sliding frame, chiseling heads and springs. The right part of the base is rotatably connected with an electric push rod, and the electric push rod is connected to the output shaft of the right part of the double-shaft motor. The telescopic end of the electric push rod is connected with a general motor, the output shaft of the general motor is connected with a rotating frame, the output shaft of the general motor is connected with bevel gears, the bevel gears are located above the rotating frame, and the front and rear parts of the rotating frame are also rotatably connected with bevel gears. Two adjacent bevel gears are meshed with each other. The outer parts of the bevel gears on the rotating frame are all connected with cams, and the cams are all in contact with the rotating frame. A sliding frame is slidably connected to the rotating frame. The output shaft of the general motor passes through the sliding frame. A plurality of chiseling heads are connected to the sliding frame, and two left and right springs are connected between the sliding frame and the rotating frame.

[0008] Further explanation, a limiting block is arranged on the upper part of the output shaft of the general motor.

[0009] Further explanation, it further includes a collecting mechanism, and the collecting mechanism includes a slurry spraying cover, a hose and a collecting bucket. A slurry spraying cover is connected to the spray head, a hose is connected to the left side of the fixed end of the telescopic rod, the hose is connected to the slurry spraying cover, a collecting bucket is connected to the upper side of the left part of the base, and the collecting bucket is connected to the tail end of the hose.

[0010] Further explanation, the slurry spraying cover is conical.

[0011] Further explanation, it further includes a discharge pipe, and a discharge pipe is connected to the lower left side of the collecting bucket.

[0012] The beneficial effects of the present utility model are as follows: 1. In the present utility model, through the rotation of the rotating frame, the chiseling heads rotate, and through the rotation of the cams, the sliding frame moves. Then, the electric push rod is driven by the double-shaft motor to rotate to roughen the roadway wall, so that it can rotate along the roadway wall to vibrate and scrape off the old sprayed mortar layer. The operation is simple, labor is saved, the bonding force is easy to improve, the efficiency of roughening treatment and the efficiency of reinforcement are improved, and the convenience of use is improved.

[0013] 2. In the present utility model, the part of the sprayed slurry that is not adhered to the roadway wall will fall on the slurry spraying cover, so that the slurry flows into the hose, then into the collecting bucket, and flows out from the discharge pipe and returns to the slurry conveying equipment, so that the excess slurry can be collected, the waste of slurry is reduced, and the utilization rate of slurry is improved.

[0014] 3. In the present utility model, by pulling the telescopic rod, the telescopic rod extends, and further the hose and the slurry spraying pipe extend. By driving the electric push rod to rotate and the telescopic rod to rotate by the double-shaft motor, the roadway walls with different heights and arcs can be sprayed and reinforced, with high flexibility and wide adaptability. Description of the Drawings

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 This is a partial three-dimensional structural schematic diagram of the present utility model.

[0017] Figure 3 This is a three-dimensional structural schematic diagram of the scarifying mechanism of the present utility model.

[0018] Figure 4 This is a partial three-dimensional structural schematic diagram of the scarifying mechanism of the present utility model.

[0019] Figure 5 This is a three-dimensional structural schematic diagram of the collection mechanism of the present utility model.

[0020] Reference numerals in the drawings: 1 - crawler vehicle, 2 - base, 3 - fixed frame, 4 - double-shaft motor, 5 - telescopic rod, 6 - spraying pipe, 7 - nozzle, 8 - scarifying mechanism, 81 - electric push rod, 82 - ordinary motor, 83 - rotating frame, 84 - bevel gear, 85 - cam, 86 - sliding frame, 87 - scarifying head, 88 - spring, 9 - collection mechanism, 91 - spraying cover, 92 - hose, 93 - collection bucket, 94 - discharge pipe. Specific embodiments

[0021] The present utility model will be further described below with reference to the drawings and embodiments.

[0022] The shotcreting equipment for reinforcing the wall of a coal mine driving roadway, as Figures 1 - 4 shown, includes a crawler vehicle 1, a base 2, a fixed frame 3, a double-shaft motor 4, a telescopic rod 5, a spraying pipe 6, a nozzle 7, and a scarifying mechanism 8. The crawler vehicle 1 is connected with the base 2. The upper side of the right part of the base 2 is connected with the fixed frame 3. The fixed frame 3 is connected with the double-shaft motor 4. The left part of the base 2 is rotatably connected with the telescopic rod 5. The telescopic rod 5 is connected with the output shaft of the left part of the double-shaft motor 4. The right side of the fixed end of the telescopic rod 5 is connected with the spraying pipe 6. The spraying pipe 6 is connected with the base 2. The telescopic end of the telescopic rod 5 is connected with the nozzle 7. The nozzle 7 is connected with the spraying pipe 6. A scarifying mechanism 8 for treating the old shotcrete layer is arranged on the upper side of the right part of the base 2.

[0023] As Figure 1 、 Figure 3 and Figure 4As shown, the roughening mechanism 8 includes an electric push rod 81, a general motor 82, a rotating frame 83, bevel gears 84, cams 85, a sliding frame 86, chisels 87 and springs 88. The right part of the base 2 is rotatably connected with an electric push rod 81. The electric push rod 81 is connected to the output shaft of the right part of the double-shaft motor 4. The telescopic end of the electric push rod 81 is connected with a general motor 82. A limit block is arranged on the upper part of the output shaft of the general motor 82 to facilitate restricting the sliding frame 86 from sliding out. The output shaft of the general motor 82 is connected with a rotating frame 83. A bevel gear 84 is connected to the output shaft of the general motor 82. The bevel gear 84 is located above the rotating frame 83. Bevel gears 84 are also rotatably connected to the front and rear parts of the rotating frame 83. Adjacent two bevel gears 84 mesh with each other. Cams 85 are externally connected to the bevel gears 84 on the rotating frame 83. The cams 85 are all in contact with the rotating frame 83. A sliding frame 86 is slidably connected to the rotating frame 83. The output shaft of the general motor 82 passes through the sliding frame 86. Four chisels 87 are connected to the sliding frame 86. Two left and right springs 88 are connected between the sliding frame 86 and the rotating frame 83.

[0024] As Figure 1 and Figure 5 shown, a collecting mechanism 9 is further included. The collecting mechanism 9 includes a shotcrete cover 91, a hose 92, a collecting bucket 93 and a discharge pipe 94. A shotcrete cover 91 is connected to the nozzle 7. The shotcrete cover 91 is conical. A hose 92 is connected to the left side of the fixed end of the telescopic rod 5. The hose 92 is connected to the shotcrete cover 91. A collecting bucket 93 is connected to the upper side of the left part of the base 2. The collecting bucket 93 is connected to the tail end of the hose 92. A discharge pipe 94 is connected to the lower left side of the collecting bucket 93 to facilitate discharging.

[0025] When shotcreting is required for the reinforcement of the roadway wall in a coal mine, this device can be used. Bring this device into the coal mine roadway, make the crawler vehicle 1 contact the ground, then connect the shotcreting pipe 6 to the slurry transportation equipment and the water pump externally, connect the discharge pipe 94 to the pipeline and then connect it to the slurry transportation equipment externally. Then pull the telescopic rod 5 to make the telescopic rod 5 extend, and further make the hose 92 and the shotcreting pipe 6 extend. Then start the crawler vehicle 1, drive this device to move through the crawler vehicle 1. After moving to a suitable position, turn off the crawler vehicle 1, start the electric push rod 81, drive the ordinary motor 82 to move through the electric push rod 81, and further drive the rotating frame 83 and the sliding frame 86 to move. After moving to a suitable position, start the ordinary motor 82, drive the rotating frame 83 to rotate through the ordinary motor 82, and further drive the bevel gear 84 on the output shaft of the ordinary motor 82 and the sliding frame 86 to rotate, making the chisel head 87 rotate. During the rotation process, two adjacent bevel gears 84 mesh with each other and move, further driving the cam 85 to rotate, making the cam 85 contact the sliding frame 86, and further making the sliding frame 86 move, and the spring 88 is stretched. Then start the double-shaft motor 4 to make the electric push rod 81 rotate, and further drive the ordinary motor 82, the rotating frame 83, the sliding frame 86 and the chisel head 87 to rotate, and then carry out roughening treatment along the roadway wall. When the cam 85 is separated from the sliding frame 86, the spring 88 rebounds and the sliding frame 86 moves back to its original position, so that it can rotate along the roadway wall to vibrate and scrape off the old shotcrete layer on the roadway wall. The operation is simple, labor-saving, convenient for improving the bonding force, improving the efficiency of roughening treatment and reinforcement efficiency, and improving the convenience of use. When the sliding frame 86 moves, the sliding frame 86 is limited by the limit block. After the roughening treatment, start the slurry transportation equipment and the water pump to make the slurry enter the shotcreting pipe 6, flow into the nozzle 7 and spray out. While the double-shaft motor 4 drives the electric push rod 81 to rotate, it will also drive the telescopic rod 5 to rotate, and further drive the shotcreting pipe 6 and the nozzle 7 to rotate, and then carry out shotcreting reinforcement along the roadway wall. The part of the sprayed slurry that is not adhered to the roadway wall will fall on the shotcreting cover 91. The shotcreting cover 91 is conical, making the slurry flow into the hose 92, then flow into the collection bucket 93, flow out from the discharge pipe 94, and flow back into the slurry transportation equipment, so that the excess slurry can be collected, reducing the waste of slurry and improving the utilization rate of slurry. After use, turn off the slurry transportation equipment, the water pump, the double-shaft motor 4 and the ordinary motor 82, start the electric push rod 81 to operate in the reverse direction, make the rotating frame 83, the sliding frame 86 and the chisel head 87 move back and retract, pull the telescopic rod 5 to contract by hand, and further make the shotcreting pipe 6 and the hose 92 contract. Then start the crawler vehicle 1 to drive this device out of the roadway.

[0026] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. Shotcreting equipment for strengthening the wall of a coal mine roadway, characterized in that: It includes a crawler vehicle (1), a base (2), a fixing frame (3), a double-shaft motor (4), a telescopic rod (5), a shotcreting pipe (6), a nozzle (7) and a scarifying mechanism (8). A base (2) is connected to the crawler vehicle (1). A fixing frame (3) is connected to the upper side of the right part of the base (2). A double-shaft motor (4) is connected to the fixing frame (3). A telescopic rod (5) is rotatably connected to the left part of the base (2). The telescopic rod (5) is connected to the output shaft of the left part of the double-shaft motor (4). A shotcreting pipe (6) is connected to the right side of the fixed end of the telescopic rod (5). The shotcreting pipe (6) is connected to the base (2). A nozzle (7) is connected to the telescopic end of the telescopic rod (5). The nozzle (7) is connected to the shotcreting pipe (6). A scarifying mechanism (8) for treating the old shotcreting layer is arranged on the upper side of the right part of the base (2).

2. The shotcreting equipment for reinforcing the wall of a coal mine driving roadway according to claim 1, characterized in that: The scarifying mechanism (8) includes an electric push rod (81), a general motor (82), a rotating frame (83), bevel gears (84), cams (85), a sliding frame (86), scarifying heads (87) and springs (88). An electric push rod (81) is rotatably connected to the right part of the base (2). The electric push rod (81) is connected to the output shaft of the right part of the double-shaft motor (4). A general motor (82) is connected to the telescopic end of the electric push rod (81). A rotating frame (83) is connected to the output shaft of the general motor (82). A bevel gear (84) is connected to the output shaft of the general motor (82). The bevel gear (84) is located above the rotating frame (83). Bevel gears (84) are also rotatably connected to the front and rear parts of the rotating frame (83). Adjacent bevel gears (84) mesh with each other. Cams (85) are connected to the outside of the bevel gears (84) on the rotating frame (83). The cams (85) are all in contact with the rotating frame (83). A sliding frame (86) is slidably connected to the rotating frame (83). The output shaft of the general motor (82) passes through the sliding frame (86). A plurality of scarifying heads (87) are connected to the sliding frame (86). Two left and right springs (88) are connected between the sliding frame (86) and the rotating frame (83).

3. The shotcreting equipment for reinforcing the wall of a coal mine tunneling roadway according to claim 2, characterized in that: A limit block is arranged on the upper part of the output shaft of the general motor (82).

4. The shotcreting equipment for reinforcing the wall of a coal mine driving roadway according to claim 3, wherein: It further includes a collecting mechanism (9). The collecting mechanism (9) includes a shotcreting cover (91), a hose (92) and a collecting bucket (93). A shotcreting cover (91) is connected to the nozzle (7). A hose (92) is connected to the left side of the fixed end of the telescopic rod (5). The hose (92) is connected to the shotcreting cover (91). A collecting bucket (93) is connected to the upper side of the left part of the base (2). The collecting bucket (93) is connected to the tail end of the hose (92).

5. The shotcreting equipment for reinforcing the wall of a coal mine driving roadway according to claim 4, characterized in that: The shotcreting cover (91) is conical.

6. The shotcreting equipment for reinforcing the wall of a coal mine tunneling roadway according to claim 5, characterized in that: It further includes a discharge pipe (94). A discharge pipe (94) is connected to the lower left side of the collecting bucket (93).

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