Coal mine tunnel floor heave repairing machine

Abstract

The invention provides a coal mine tunnel floor heave repairing machine, and relates to the field of coal mine tunnel floor heave repairing. According to the repairing machine, a working arm comprises a first arm barrel and a second arm barrel which are coaxially and rotationally connected, and the end, away from the second arm barrel, of the first arm barrel is arranged on a vehicle body; the milling mechanism comprises a milling head, and the milling head is coaxially arranged at the end, away from the first arm cylinder, of the second arm cylinder and is of a hollow structure; a spiral driving part of the spiral conveying mechanism is mounted on the second arm cylinder; a spiral main body is inserted into the second arm cylinder, the first arm cylinder and the milling head; the first arm cylinder is provided with a blanking port; the conveyor is arranged on the vehicle body and is used for receiving slag falling from the blanking port and conveying the slag to a target device; the walking system is used for moving the repairing machine. According to the repairing machine, milling repairing can be conducted on the floor heave of the coal mine roadway, slag can be conveyed in time, the workload is small, the efficiency is high, the milling mechanism and the spiral conveying mechanism are integrated on the working arm, the structure is ingenious and compact, and the occupied space is small.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine tunnel floor drum repairing, in particular to a coal mine tunnel floor drum repairing machine. Background Art

[0002] The tunnel floor drum repair machine is a device specially used to repair the tunnel floor drum, which is usually used for tunnel floor drum repair in the fields of subway, mining and tunnel engineering. The repair of the floor drum at the bottom area of ​​the belt conveyor has always been a difficult problem in tunnel floor drum repair.

[0003] In the prior art, the bottom drum is usually repaired manually or by a repair machine, and then equipment or vehicles are arranged to transport the slag, which results in heavy workload and low efficiency. Summary of the invention

[0004] The object of the present invention is to provide a coal mine tunnel floor drum repairing machine to solve the technical problems of large workload and low efficiency in coal mine tunnel floor drum repairing in the prior art.

[0005] The coal mine tunnel floor drum repairing machine provided by the present invention comprises a vehicle body, a working arm, a milling mechanism, a spiral feeding mechanism, a conveyor, a walking system and a control system, wherein the working arm comprises a first arm tube and a second arm tube coaxially rotatably connected, and an end of the first arm tube away from the second arm tube is arranged on the vehicle body; the milling mechanism comprises a milling head, and the milling head is coaxially arranged on an end of the second arm tube away from the first arm tube, and the milling head is a hollow structure;

[0006] The spiral feeding mechanism comprises a spiral driving member and a spiral body connected in a transmission manner, the spiral driving member is installed on the second arm tube, the spiral body is inserted in the second arm tube, the first arm tube and the milling head, and the spiral feeding mechanism is used to transport the slag entering the milling head to the drop opening provided in the first arm tube;

[0007] The conveyor is arranged on the vehicle body, and is used to receive the slag material falling from the drop opening and convey it to the target device, and the target device includes a working face scraper conveyor or a mine car;

[0008] The traveling system is used to move the repair machine, and the control system is used to control the milling mechanism, the spiral feeding mechanism, the conveyor and the traveling system.

[0009] Furthermore, the working arm also includes a swivel seat, the first arm tube is installed on the swivel seat, and the swivel seat is rotatably arranged on the vehicle body around a vertical axis to drive the first arm tube to swing left and right.

[0010] Furthermore, the first arm tube is rotatably connected to the swivel seat around a horizontal axis, and the axis of the first arm tube is perpendicular to the horizontal axis; a telescopic driving member is connected between the first arm tube and the swivel seat, which is used to drive the first arm tube to perform pitch motion around the horizontal axis.

[0011] Furthermore, the milling mechanism also includes a driving assembly, which includes a milling driving member arranged on the first arm tube, and the milling driving member is transmission-connected to the second arm tube for driving the second arm tube to drive the milling head to rotate.

[0012] Furthermore, the conveyor includes a first conveyor, which is arranged on the vehicle body along the front-rear direction of the vehicle body, and a material receiving end of the first conveyor is located below the drop port.

[0013] Furthermore, the conveyor also includes a second conveyor, which is arranged at the rear of the vehicle body, and the material receiving end of the second conveyor is matched with the material dropping end of the first conveyor, and the material dropping end of the second conveyor is matched with the material receiving position of the target device.

[0014] Furthermore, the material receiving end of the second conveyor can be rotatably arranged on the vehicle body to adjust the position of the material dropping end of the second conveyor.

[0015] Furthermore, a bulldozer is provided at the front end of the vehicle body for leveling and collecting materials.

[0016] Furthermore, the rear end of the vehicle body is provided with legs for supporting the vehicle body.

[0017] Furthermore, the walking system is a crawler walking system.

[0018] The coal mine tunnel floor drum repairing machine provided by the present invention can produce the following beneficial effects:

[0019] The coal mine tunnel floor drum repair machine provided by the present invention, under the control of the control system, the walking system can move the repair machine to the area near the coal mine tunnel floor drum that needs to be repaired, and then the milling head of the milling mechanism installed on the working arm can be used to mill and crush the floor drum, and the slag produced after milling can enter the milling head, and then reach the drop port of the first arm tube under the transportation of the spiral feeding mechanism and fall to the conveyor, and finally, the conveyor unloads the slag to the target device, such as the working face scraper conveyor or the mine car, so as to transport the slag out of the tunnel. That is, the coal mine tunnel floor drum repair machine provided by the present invention can not only perform milling and repair on the coal mine tunnel floor drum, but also can transport the slag in time, with small workload and high efficiency, and the milling mechanism and the spiral feeding mechanism are integrated in the working arm, with a clever and compact structure and small space occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of a coal mine tunnel floor drum repair machine in a milling state provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the top view of the coal mine tunnel floor drum repair machine in the milling state provided by an embodiment of the present invention;

[0023] Figure 3 A schematic structural diagram of a coal mine tunnel floor drum repair machine in a non-milling state provided by an embodiment of the present invention.

[0024] Description of reference numerals:

[0025] 100-vehicle body; 110-bulldozer; 120-outrigger;

[0026] 200-working arm; 210-first arm tube; 211-dropping port; 220-second arm tube; 230-swivel seat; 240-telescopic drive member;

[0027] 310-milling head; 321-milling drive member; 322-driving gear; 323-driven gear;

[0028] 410-screw driving member; 420-screw body;

[0029] 510-first conveyor; 520-second conveyor;

[0030] 600-Travel system; 700-Cable reel; 800-Explosion-proof and control components. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] This embodiment provides a coal mine tunnel floor drum repair machine, such as Figures 1 to 3As shown, the repair machine includes a vehicle body 100, a working arm 200, a milling mechanism, a spiral feeding mechanism, a conveyor, a walking system 600 and a control system. The working arm 200 includes a first arm tube 210 and a second arm tube 220 that are coaxially connected, and the end of the first arm tube 210 away from the second arm tube 220 is arranged on the vehicle body 100; the milling mechanism includes a milling head 310, which is coaxially arranged at the end of the second arm tube 220 away from the first arm tube 210, and the milling head 310 is a hollow structure; the spiral feeding mechanism includes a spiral driving member 410 and a spiral body 420 that are transmission-connected. The spiral drive member 410 is installed on the second arm tube 220, and the spiral body 420 is inserted into the second arm tube 220, the first arm tube 220 and the milling head 310. The spiral feeding mechanism is used to transport the slag entering the milling head 310 to the drop port 211 set in the first arm tube 210; the conveyor is set on the vehicle body 100, for receiving the slag falling from the drop port 211 and conveying it to the target device, which includes a working face scraper conveyor or a mine car; the walking system 600 is used to move the repair machine, and the control system is used to control the milling mechanism, the spiral feeding mechanism, the conveyor and the walking system.

[0033] The coal mine tunnel floor drum repair machine provided in this embodiment, under the control of the control system, the walking system 600 can move the repair machine to the area near the coal mine tunnel floor drum that needs to be repaired, and then, the milling head 310 of the milling mechanism installed on the working arm 200 can be used to mill and crush the floor drum, and the generated slag can enter the milling head 310, and then reach the drop port 211 of the first arm tube 210 under the transportation of the spiral feeding mechanism and fall to the conveyor, and finally, the conveyor unloads the slag to the target device, such as the working face scraper conveyor or the mine car, to transport the slag out of the tunnel. That is, the coal mine tunnel floor drum repair machine provided in this embodiment can not only perform milling and repair on the coal mine tunnel floor drum, but also can transport the slag in time, with small workload and high efficiency, and the milling mechanism and the spiral feeding mechanism are integrated in the working arm, with a clever and compact structure and small space occupation.

[0034] Specifically, in this embodiment, Figures 1 to 3 As shown, the working arm 200 also includes a swivel seat 230, and the first arm cylinder 210 is installed on the swivel seat 230. The swivel seat 230 is rotatably arranged on the vehicle body 100 around a vertical axis, and is used to drive the first arm cylinder 210 to swing left and right. In this way, the swivel seat 230 provides support for the first arm cylinder 210, the second arm cylinder 220, the milling mechanism, and the spiral feeding mechanism, and enables them to swing left and right to adjust to the target working position. Further, in this embodiment, the swivel seat 230 is driven by a hydraulic motor. Of course, in other embodiments of the present application, the driving member of the swivel seat 230 is not limited to a hydraulic motor, but can also be other rotating driving members.

[0035] Specifically, in this embodiment, Figure 1 As shown, the material drop port 211 is arranged at a position of the first arm tube 210 close to the swivel seat 230. Thus, when the swivel seat 230 drives the entire working arm to rotate, the position of the material drop port 211 remains basically unchanged, and the slag material conveyed by the spiral feeding mechanism through the spiral motion can still fall to the receiving end of the conveyor below.

[0036] Specifically, in this embodiment, the first arm tube 210 is rotatably connected to the swivel seat 230 around a horizontal axis, and the axis of the first arm tube 210 is perpendicular to the horizontal axis; a telescopic driving member 240 is connected between the first arm tube 210 and the swivel seat 230, which is used to drive the first arm tube 210 to do a pitching motion around the horizontal axis. In this way, the telescopic driving member 240 can make the first arm tube 210, the second arm tube 220, the milling mechanism, etc. do a pitching motion by telescoping, so that the milling head 310 can reach the target working position. In addition, when the bottom drum needs to be milled, the working arm can be directed forward; and when the bottom drum does not need to be milled, the working arm can be directed backward, even if the working arm is located above the vehicle body 100, thereby reducing the occupied space of the entire repair machine in the front-to-back direction. Of course, when the height of the roadway is limited and the direction adjustment of the working arm cannot be met, the working arm needs to be adjusted to face forward in advance before entering the roadway.

[0037] More specifically, in this embodiment, if Figure 1 As shown, the piston rod of the hydraulic cylinder is fixedly connected to the middle of the first arm cylinder 210, so as to better provide support for the first arm cylinder 210 and the second arm cylinder 220 connected to the first arm cylinder 210 and the spiral feeding mechanism.

[0038] During the operation of the entire working arm, the rotation of the swivel seat 230 drives the entire working arm to swing left and right. When approaching the repair position, the extension and retraction of the hydraulic cylinder drives the first arm tube 210 to move up and down, so that the milling mechanism can accurately reach the repair position. At the same time, during the milling operation, the swivel seat 230 and the hydraulic cylinder cooperate with each other to ensure the stability of the milling process, avoid jumping, and meet the requirements of bottom drum repair within the full width range.

[0039] Specifically, in this embodiment, Figure 1 and Figure 2As shown, the milling mechanism also includes a driving assembly, which includes a milling drive 321 disposed on the first arm tube 210, and the milling drive 321 is transmission-connected to the second arm tube 220, and is used to drive the second arm tube 220 to drive the milling head 310 to rotate. More specifically, the output shaft of the milling drive 321 is transmission-connected with a driving gear 322, and the second arm tube 220 is coaxially fixed with a driven gear 323, and the driven gear 323 is meshingly connected with the driving gear 322, so that when the milling drive 321 is running, the driving gear 322 can drive the driven gear 323 as well as the second arm tube 220 and the milling head 310 to rotate, and the rotation of the milling head 310 mills and crushes the bottom drum, thereby repairing the bottom drum.

[0040] Specifically, in this embodiment, Figures 1 to 3 As shown, the conveyor includes a first conveyor 510, which is arranged on the vehicle body 100 along the front-rear direction of the vehicle body 100, and the material receiving end of the first conveyor 510 is located below the material drop opening 211. More specifically, in this embodiment, the first conveyor 510 can be a scraper conveyor.

[0041] Specifically, in this embodiment, continue as Figures 1 to 3 As shown, the conveyor also includes a second conveyor 520, which is arranged at the rear of the vehicle body 100, and the material receiving end of the second conveyor 520 is matched with the material dropping end of the first conveyor 510, and the material dropping end of the second conveyor 520 is matched with the material receiving position of the target device.

[0042] Furthermore, in this embodiment, the receiving end of the second conveyor 520 is rotatably disposed on the vehicle body 100, so as to adjust the position of the dropping end of the second conveyor 520. For example, when the target device is a mine car located behind the repairer, the dropping end of the second conveyor 520 can be facing backwards so that the slag falls into the mine car; and when the target device is a working face scraper conveyor on the left or right side of the repairer, the second conveyor 520 can be rotated so that its dropping end is located above the working face scraper conveyor so that the slag falls onto the scraper conveyor.

[0043] In this embodiment, the spiral feeding mechanism collects and transports the slag generated after milling in real time, realizes the collection and transportation of the milling slag, and the first conveyor and the second conveyor realize the subsequent transportation function of the slag. The three constitute a feeding system, which simplifies the slag processing process and improves the overall work efficiency.

[0044] Specifically, in this embodiment, Figure 1 and Figure 3 As shown, a bulldozer 110 is disposed at the front end of the vehicle body 100 for leveling and collecting materials after repair.

[0045] Specifically, in this embodiment, continue as Figure 1 and Figure 3 As shown, the rear end of the vehicle body 100 is provided with a support leg 120 for supporting the vehicle body 100 to prevent the vehicle body 100 from rolling over during the repair process. More specifically, in this embodiment, there are two support legs 120, which are arranged at intervals on the left and right to provide stable and reliable support.

[0046] Specifically, in this embodiment, the walking system 600 is a crawler walking system. The crawler walking system has strong traction capacity and can flexibly turn. Specifically, the crawler walking system includes a pair of crawlers and a transmission device. The crawlers are made of wear-resistant materials and have good wear resistance and grip. The transmission device is a gear transmission system that converts the high speed of the walking hydraulic motor into the low speed of the crawler, thereby realizing the movement of the repair machine. The control system can adjust the speed and direction of the crawler according to environmental conditions and operating requirements to ensure that the repair machine can maintain a stable and accurate movement path when performing repair operations.

[0047] In this embodiment, a cable drum 700 is also installed at the rear end of the repair machine. In order to facilitate the repair machine to move forward and backward repeatedly during the construction process, an external power supply of the cable drum 700 is provided to provide power for the whole machine. The cable drum 700 is synchronized with the equipment through an electro-hydraulic control system to avoid over-retraction or over-release of the cable and extend the service life of the cable.

[0048] In this embodiment, the vehicle body 100 adopts a semi-open rectangular structure, aiming to solve the problem of limited working arm height while ensuring that its strength, rigidity and stability meet the requirements. Infrared sensors and ultrasonic sensors are also provided at both ends of the vehicle body 100 to collect information about obstacles around the repair machine, thereby achieving obstacle avoidance. The vehicle body is also provided with a control box, a hydraulic oil tank, a hydraulic pump connected to the hydraulic oil tank, and an electric motor for driving the hydraulic pump.

[0049] like Figure 1 As shown, in this embodiment, the vehicle body 100 is also provided with an explosion-proof and control component 800, specifically, including an explosion-proof operating valve group, an intelligent mining explosion-proof and intrinsically safe electronic control system, a wireless receiver, a control box, a hydraulic oil tank, a hydraulic pump connected to the hydraulic oil tank, and an engine control system for driving the hydraulic pump. Of course, an oil tank component is also provided on the vehicle body 100.

[0050] In this embodiment, the control system realizes all functions of the whole machine, and can make real-time adjustments to the working arm and the vehicle body 100, etc., so that they can work stably, and can also receive wireless signals to realize remote control operation.

[0051] The control process of the repair machine provided in this embodiment may be: after the repair machine is started, it first performs a power-on self-test, and the self-test items include the original status of various sensors and control systems; after the self-test is successful, the wireless remote control sends a control instruction to the repair machine, and the controller collects data collected by infrared sensors, ultrasonic sensors, etc., to complete obstacle detection around the repair machine; the repair machine starts to move through the positioning and navigation function, and the working arm remains in the initial position during the walking process. If a fault occurs during the walking process, the operation will be stopped. If not, it will continue to move to the work site, and then the operator will start to control the repair machine to mill the bottom drum of the tunnel.

[0052] The working conditions of the repair machine provided in this embodiment are as follows: since the bottom plate of the tunnel is uneven, an area must be determined as the working surface first; the bottom drum repair work is advanced based on this working surface, and during the advancement, the cable reel 700 realizes synchronous cable retraction and release with the equipment through the electro-hydraulic control system; the working arm of the repair machine cooperates with the slewing seat 230 to swing toward the side of the scraper conveyor of the working surface to perform the bottom drum milling work at the bottom of the scraper conveyor of the working surface; the milled slag is transported to the scraper conveyor of the working surface through the spiral feeding mechanism and the first conveyor 510 and the second conveyor 520.

[0053] The following is a brief introduction to the working process of the coal mine tunnel floor drum repair machine provided in this embodiment:

[0054] (1) Operation preparation and start-up

[0055] Before starting any operation, the equipment performs a comprehensive self-check to ensure that all systems are operating normally, including the hydraulic system, control system, mechanical components and safety devices. After the self-check is successful, the operator moves the tunnel floor drum repair machine to the predetermined working space to ensure that the equipment moves in the tunnel; after arriving at the predetermined working space, the operator uses the working surface as a reference and sends a motion command to the repair machine through a wireless remote sensor to drive the crawler in the walking system 600 forward and control the repair machine to smoothly approach the area that needs to be repaired. During the movement, the cable reel 700 retracts and releases the cable with the equipment in real time, and the control system monitors the environment ahead in real time, collects obstacle and slag data, and when detected, the system immediately sends a stop signal.

[0056] (2) Assignment and completion

[0057] When the equipment stops, the control system processes the collected data and transmits it to the wireless remote sensor. By processing the data, the wireless remote sensing device controls the telescopic drive 240 and the slewing seat 230 to control the working arm to move from the non-milling state to the milling state, that is, adjust the direction of the working arm or the milling head 310 from backward to forward; then adjust the milling mechanism to move up, down, left and right, move the milling mechanism to a suitable position, and start the actual milling operation. In this process, the wireless remote sensing device continuously controls the milling mechanism to ensure that it works according to the predetermined path; the slag generated during the milling process will be collected by the spiral feeding mechanism and transported to the drop port 211 through the mechanism. At this time, the slag will fall from the drop port 211 onto the scraper conveyor, and then be transported to the working face scraper conveyor or the mine car by the scraper conveyor and the second conveyor 520. After completing the collection of the slag in front, the operator controls the slewing seat 230 through the wireless remote sensing device to rotate the working arm, drive the milling mechanism to continue to move, and complete the milling and collection of the slag at the same time. During the whole process, the operator controls the status and progress of the equipment at all times through the collected data, and makes timely adjustments according to the actual situation on site. After the operation is completed, the operator moves the working arm from the milling state to the non-milling state, and performs necessary maintenance and inspection on the equipment to ensure that it can operate normally in the next operation.

[0058] In summary, the coal mine tunnel floor drum repair machine provided in this embodiment is suitable for repairing the floor drum of the transport chute tunnel, especially the repair of the floor drum in the bottom area of ​​the working face scraper conveyor. When the milling operation of the repair machine starts, the working arm rotates to the front of the repair machine body 100 and accurately positions itself at the floor drum position. The repair machine has both milling and aggregate collection functions, strong adaptability to working conditions, high degree of intelligence, and high operating efficiency. In the non-milling state, the working arm can also be retracted and kept level with the body, reducing the space occupied in the tunnel.

[0059] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0060] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A coal mine tunnel floor drum repair machine, characterized in that: The invention comprises a vehicle body (100), a working arm (200), a milling mechanism, a screw feeding mechanism, a conveyor, a walking system (600) and a control system, wherein the working arm (200) comprises a first arm tube (210) and a second arm tube (220) which are coaxially rotatably connected, and an end of the first arm tube (210) away from the second arm tube (220) is arranged on the vehicle body (100); the milling mechanism comprises a milling head (310), and the milling head (310) is coaxially arranged on an end of the second arm tube (220) away from the first arm tube (210), and the milling head (310) is a hollow structure; The spiral feeding mechanism comprises a spiral driving member (410) and a spiral body (420) which are connected in a transmission manner, wherein the spiral driving member (410) is installed on the second arm tube (220), and the spiral body (420) is inserted into the second arm tube (220), the first arm tube (220) and the milling head (310), and the spiral feeding mechanism is used to transport the slag entering the milling head (310) to the drop opening (211) provided in the first arm tube (210); The conveyor is arranged on the vehicle body (100) and is used to receive the slag material falling from the drop opening (211) and convey it to a target device, wherein the target device includes a working face scraper conveyor or a mine car; The walking system (600) is used to move the repair machine, and the control system is used to control the milling mechanism, the screw feeding mechanism, the conveyor and the walking system.

2. The coal mine tunnel floor drum repairing machine according to claim 1, characterized in that: The working arm (200) further comprises a swivel seat (230), the first arm tube (210) being mounted on the swivel seat (230), and the swivel seat (230) being rotatably disposed on the vehicle body (100) around a vertical axis, and being used to drive the first arm tube (210) to swing left and right.

3. The coal mine tunnel floor drum repairing machine according to claim 2, characterized in that: The first arm tube (210) is rotatably connected to the rotating seat (230) around a horizontal axis, and the axis of the first arm tube (210) is perpendicular to the horizontal axis; a telescopic driving member (240) is connected between the first arm tube (210) and the rotating seat (230) for driving the first arm tube (210) to perform pitch motion around the horizontal axis.

4. The coal mine tunnel floor drum repairing machine according to any one of claims 1 to 3, characterized in that: The milling mechanism further comprises a driving assembly, wherein the driving assembly comprises a milling driving member (321) arranged on the first arm tube (210), and the milling driving member (321) is transmission-connected to the second arm tube (220) for driving the second arm tube (220) to drive the milling head (310) to rotate.

5. The coal mine tunnel floor drum repairing machine according to claim 4, characterized in that: The conveyor comprises a first conveyor (510), the first conveyor (510) being arranged on the vehicle body (100) along the front-rear direction of the vehicle body (100), and a material receiving end of the first conveyor (510) being located below the drop port (211).

6. The coal mine tunnel floor drum repairing machine according to claim 5, characterized in that: The conveyor also includes a second conveyor (520), which is arranged at the rear end of the vehicle body (100), and the material receiving end of the second conveyor (520) is matched with the material dropping end of the first conveyor (510), and the material dropping end of the second conveyor (520) is matched with the material receiving position of the target device.

7. The coal mine tunnel floor drum repairing machine according to claim 6, characterized in that: The material receiving end of the second conveyor (520) is rotatably arranged on the vehicle body (100) for adjusting the position of the material dropping end of the second conveyor (520).

8. The coal mine tunnel floor drum repairing machine according to any one of claims 1 to 3, characterized in that: The front end of the vehicle body (100) is provided with a bulldozer (110) for leveling and collecting materials.

9. The coal mine tunnel floor drum repairing machine according to any one of claims 1 to 3, characterized in that: The rear end of the vehicle body (100) is provided with a support leg (120) for supporting the vehicle body (100).

10. The coal mine tunnel floor drum repairing machine according to any one of claims 1 to 3, characterized in that: The walking system (600) is a crawler walking system.

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