Movable scraper reversed loader for coal mine crossheading

Abstract

The invention belongs to the technical field of short-distance material transshipment operation of an underground coal mine driving face, and particularly relates to a movable scraper transshipment machine for a coal mine crossheading. Comprising a receiving part, a middle frame body, an unloading part, a scraper chain, a left platform assembly, a right platform assembly and a wheel assembly, the material receiving part, the middle frame body and the discharging part are sequentially connected, and the scraper chain starts from the material receiving part, passes through the middle frame body, the discharging part, a machine head chain wheel assembly on the discharging part and a tail shaft assembly on the material receiving part and then returns to the material receiving part to form a scraper conveying system. The machine head chain wheel assembly is connected with the conveying transmission part. The wheel assembly is located below the middle frame body. The left platform assembly is mounted on the right side of the middle frame body and is integrated with and provided with an electric control system; the right platform assembly is mounted on the right side of the middle frame body and is integrated with and provided with a hydraulic system; the movable scraper reversed loader for the coal mine crossheading is flexible in arrangement, high in intelligent degree, large in transportation volume and reliable in structure, and has the effects of safety, intelligence, cost reduction and efficiency improvement for high-yield and high-efficiency mining of a working face.

Description

Technical Field

[0001] The invention belongs to the technical field of short-distance material transfer operations on underground coal mine heading working faces, and in particular relates to a mobile scraper transfer machine for coal mine drifts. Background Art

[0002] With the continuous advancement of efficient and intensive mines, the monthly advancement of the working face has reached 100 to 300 meters, and the monthly consumption of the preparation tunnel has reached more than 1,000 meters. When the tunnel is opened, the rear supporting equipment is too long to be arranged and used in the first 50 to 100 meters of the tunnel, and a complete transportation system has not been formed.

[0003] In order to transport the coal and rock after excavation in time, material transport vehicles and transfer machines are needed to transfer the materials to the main transport or chute belt conveyor. The traditional transfer method is mainly material transport vehicles + belt transfer machines. Since the belt transfer machine is used as a temporary transfer equipment, it is difficult to move and walk, the transportation climbing angle is small, and the heavy load starting is poor, which affects the smooth passage of material transfer, reduces the efficiency of excavation and tunneling, and makes it difficult to transport or change the transfer point, resulting in long auxiliary work time and high labor intensity for workers. It is urgent to develop a mobile transfer equipment with good adaptability, strong practicality, and efficient operation to speed up the excavation and tunneling speed and achieve balanced development of mining and excavation. Summary of the invention

[0004] Aiming at the problems of difficulty, low efficiency and high labor intensity in transporting gangue and mudstone in the early stage of coal mine tunnel excavation and in the process of opening joint tunnels, functional chambers and cutting holes, the present invention provides a mobile scraper transfer machine for coal mine drift.

[0005] The present invention provides the following technical solution: a mobile scraper loader for coal mine drift, comprising a material receiving part, an intermediate frame, a material discharging part, a scraper chain, a left platform assembly, a right platform assembly and a wheel assembly;

[0006] The receiving part, the intermediate frame and the unloading part are connected in sequence. The receiving part is tilted downward for receiving materials, and the unloading part is lifted up to discharge materials downward. The scraper chain starts from the receiving part, passes through the intermediate frame, the unloading part, the head sprocket assembly on the unloading part, the tail shaft assembly on the receiving part, and then returns to the receiving part to form a scraper conveying system; the head sprocket assembly is connected to the transport transmission part;

[0007] The wheel assembly is located below the middle frame;

[0008] The left platform assembly is installed on the right side of the middle frame, and is integrated with and installed with the electric control system;

[0009] The right platform assembly is installed on the right side of the middle frame and is integrated and installed with a hydraulic system.

[0010] Furthermore, the material receiving part includes a left hopper, a main frame, a right hopper, a tail shaft assembly and a tensioning cylinder; the left hopper and the right hopper are installed on both sides of the main frame to form a hopper with a large port, a small port and an open top, the small port of the hopper is connected to the middle frame, the tail shaft assembly is arranged at the end of the material receiving part, and the tail shaft assembly is slidably assembled on the main frame and connected to the tensioning cylinder between the main frame.

[0011] Furthermore, a buffer chain is installed at the feeding port of the material receiving part, and a movable coal blocking plate with adjustable height is installed at the small port of the hopper of the material receiving part.

[0012] Furthermore, the intermediate frame includes a transport trough frame and an upper connecting ear, a connecting plate, an axle connecting frame and a lower connecting ear fixed on the transport trough frame, the axle connecting frame is connected to the wheel assembly, the connecting plate is connected to the material receiving part, the upper connecting ear is hinged to the unloading part, and a lifting cylinder is connected between the lower connecting ear and the unloading part.

[0013] Furthermore, the unloading part includes a unloading frame, a head sprocket assembly, a receiving hopper assembly and a transport transmission part. The head sprocket assembly is installed in the groove of the unloading frame, and the transport transmission part is installed outside the unloading frame. The transport transmission part includes a variable frequency motor and a reducer. The variable frequency motor drives the head sprocket assembly to rotate through the reducer, and the receiving hopper assembly is installed at the unloading port end of the unloading part.

[0014] Furthermore, a spray mounting frame is installed on the discharge frame at the discharge port.

[0015] Furthermore, the right platform assembly includes a right platform frame and a hydraulic operating valve and an integrated pump station mounted on the right platform frame; a protective cover is installed outside the hydraulic operating valve and the integrated pump station, a right rubber plate is installed on the right platform frame in front and behind the tire of the wheel assembly, and a right emergency stop button is provided on the right platform assembly outside the protective cover.

[0016] Furthermore, the integrated pump station includes an oil tank, an accumulator, an integrated valve, a motor, a bracket shield, a hydraulic pump and a hand pump; a pressure gauge is installed on the integrated valve, and an oil temperature and level gauge is installed on the oil tank.

[0017] Furthermore, the left platform assembly includes a left platform frame and a display and a flameproof and intrinsically safe electric control box mounted on the left platform frame, a rear guard is installed outside the display, a front guard is installed outside the flameproof and intrinsically safe electric control box, an audible and visual alarm device is installed at the rear of the front guard, a left emergency stop button is installed at the rear of the rear guard, and a left rubber plate is installed on the left platform frame in front and behind the tire of the wheel assembly.

[0018] Furthermore, the main frame of the material receiving part is arranged at an angle of 13° to the ground, and the transport trough frame of the middle frame is arranged at an angle of 13° to the ground.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] The present invention provides a mobile scraper transfer machine for coal mine drift, which serves as a temporary transfer point and is connected with the main transport or drift belt conveyor to transfer. It is mainly composed of a material receiving part, an intermediate frame, a right platform assembly, a wheel assembly, a parking auxiliary device, a lifting cylinder, a discharge part, a scraper chain, and a left platform assembly. The intermediate frame is arranged in the center of the equipment, and a scraper chain is laid in the frame transport trough and a side double chain arrangement + sleeve chain type is adopted; the left platform assembly is installed on the left side of the frame and an electrical system is installed, which mainly provides power for the equipment; the right platform assembly is installed on the right side of the frame and a hydraulic system is installed, which mainly provides hydraulic drive for the equipment; the bottom of the frame is connected to the wheel assembly, which mainly plays the role of heavy load support and mobile transfer. The discharge part is arranged at the tail of the intermediate frame, and its height can be adjusted by a lifting cylinder to meet the needs of different unloading scenarios. The material receiving part is arranged at the front of the intermediate frame, which adopts a split mechanism and is equipped with a large-capacity hopper, and has the functions of buffering coal flow and uniform transfer.

[0021] The mobile scraper transfer machine used in coal mine drifts has flexible layout, high degree of intelligence, large transport capacity and reliable structure. It plays a role in safety, intelligence, low-carbon and green, cost reduction and efficiency improvement for high-yield and efficient mining of the working face, and greatly improves the efficiency of material transfer operations such as opening connecting tunnels, functional chambers, and cutting eyes in underground coal mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a mobile scraper loader for coal mine drift;

[0023] Figure 2 The structure of the material receiving part is shown in Fig. Figure 1 ;

[0024] Figure 3 The structure of the material receiving part is shown in Fig. Figure 2 ;

[0025] Figure 4 It is a structural schematic diagram of the intermediate frame;

[0026] Figure 5 is a structural schematic diagram of the right platform component;

[0027] Figure 6 This is a schematic diagram of the structure of the integrated pump station;

[0028] Figure 7 is a schematic diagram of the structure of a wheel assembly;

[0029] Figure 8 It is the structural schematic diagram of the unloading part;

[0030] Fig. 9 It is a structural schematic diagram of the nose sprocket assembly;

[0031] Fig.10 It is a structural schematic diagram of the left platform component.

[0032] In the figure: 1- material receiving part; 101- left hopper; 102- main frame; 103- movable coal baffle; 104- buffer chain; 105- right hopper; 106- tail shaft assembly; 107- side cover; 108- fire extinguisher; 109- tensioning cylinder; 110- anti-collision frame;

[0033] 2-left platform assembly; 201-front guard; 202-rear guard; 203-left emergency stop button; 204-left platform frame; 205-left rubber sheet; 206-display; 207-explosion-proof and intrinsically safe electric control box; 208-sound and light alarm device;

[0034] 3-middle frame; 301-upper connecting ear; 302-transport trough frame; 303-connecting plate; 304-axle connecting frame; 305-lower connecting ear;

[0035] 4-right platform assembly; 401-shield; 402-hydraulic operating valve; 403-integrated pump station; 404-right platform frame; 405-right rubber plate; 406-bend plate; 407-right emergency stop button; 4031-oil tank; 4032-accumulator; 4033-integrated valve; 4034-motor; 4035-bracket shield; 4036-pressure gauge; 4037-hydraulic pump; 4038-hand pump; 4039-oil temperature and level gauge;

[0036] 5-wheel assembly; 501-axle assembly; 502-tire assembly;

[0037] 6-parking assist device; 7-lifting cylinder;

[0038] 8-discharging part; 801-discharging rack; 802-tongue plate; 803-head sprocket assembly; 804-spray mounting frame; 805-collecting hopper assembly; 806-guard plate; 807-transport transmission part; 808-anti-crossing fence; 8031-end cover; 8032-bearing seat; 8033-small shaft; 8034-sprocket; 8035-half cover; 8036-driving shaft; 8037-key; 8038-adjusting shim set; 8039-bearing;

[0039] 9-scraper chain; 10-unloading auxiliary device; 11-protective net; 12-spray system. DETAILED DESCRIPTION

[0040] 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] like Figure 1 As shown: a mobile scraper loader for coal mine chute, including a material receiving part 1, an intermediate frame 3, a discharge part 8, a scraper chain 9, a left platform assembly 2, a right platform assembly 4 and a wheel assembly 5; the material receiving part 1, the intermediate frame 3 and the discharge part 8 are connected in sequence, the material receiving part 1 is tilted downward for receiving materials, and the discharge part 8 is lifted upward to discharge materials downward, and the scraper chain 9 starts from the material receiving part 1, passes through the intermediate frame 3, the discharge part 8, the head sprocket assembly 803 on the discharge part 8, and the tail shaft assembly 106 on the material receiving part 1 and then returns to the material receiving part 1 to form a scraper conveying system; the head sprocket assembly 803 is connected to the transport transmission part 807; the wheel assembly 5 is located below the intermediate frame 3; the left platform assembly 2 is installed on the right side of the intermediate frame 3, and an electric control system is integrated and installed; the right platform assembly 4 is installed on the right side of the intermediate frame 3, and a hydraulic system is integrated and installed.

[0042] like Figure 2 As shown: the material receiving part 1 adopts a split structure, and the material receiving part 1 includes a left hopper 101, a main frame 102, a right hopper 105, a tail shaft assembly 106 and a tensioning cylinder 109; the main frame 102 is arranged at an angle of 13° to the ground, and is supported by its bottom triangular structure to stabilize the fuselage; the left hopper 101 and the right hopper 105 are installed on both sides of the main frame 102 by fastening with high-strength bolts to form a large end, a small end and an open top. The hopper of the left hopper 101 and the right hopper 105 are welded by inclined plates with different inclination angles. The tail shaft assembly 106 is arranged at the end of the material receiving part 1, which plays the role of redirecting the scraper chain. The tail shaft assembly 106 is slidably assembled on the main frame 102 and the tensioning cylinder 109 is connected between the main frame 102. The front and rear positions of the tail shaft assembly 106 are adjusted by the tensioning cylinder 109 to adjust the tension of the scraper chain 9. The anti-collision frame 110 is connected to the front end of the material receiving part 1 through a pin shaft and can be folded open to prevent collision and facilitate coal cleaning.

[0043] The feeding port of the receiving part 1 is equipped with a buffer chain 104 to improve the instantaneous material receiving capacity of the hopper. The small port of the hopper of the receiving part 1 is equipped with a movable coal baffle plate 103 with adjustable height. The amount of coal passing through the transport chute is adjusted by adjusting the upper and lower positions of the movable coal baffle plate 103 to prevent large pieces of coal from blocking the transport chute. An auxiliary unloading device 10 is added to the front end of the receiving part 1 to facilitate the engineering vehicle to approach and unload materials.

[0044] like Figure 3 As shown: rectangular holes are opened on both sides of the transport trough channel of the main frame 102 and are closed by side covers 107. When the scraper chain is blocked, the coal can be cleaned through these holes. The material receiving part 1 is designed with a fire extinguisher rack, a spray rack and a lubrication integrated block, which are used to place the fire extinguisher 108, install the spray system and the lubrication system. The tensioning of the tensioning cylinder 109 and the lubrication of the tail shaft assembly 106 are connected to the lubrication blocks on both sides for centralized operation, and the oiling nozzle is equipped with a dust cap.

[0045] like Figure 4 As shown: the cross-section of the intermediate frame 3 adopts a "triangle" type stable structure, which is inclined at an angle of 13° to the horizontal plane. The intermediate frame 3 includes a transport trough frame 302 and an upper connecting ear 301, a connecting plate 303, an axle connecting frame 304 and a lower connecting ear 305 fixed on the transport trough frame 302. The middle plate and the bottom plate of the transport trough frame 302 are both made of HARDOX450 wear-resistant plate, which not only meets the instantaneous transportation volume requirements but also improves its service life. The axle connecting frame 304 is connected to the wheel assembly 5, and a parking auxiliary support device 6 is configured in front and behind the wheel to ensure safe operation of the equipment. The connecting plate 303 is connected to the material receiving part 1, the upper connecting ear 301 is hinged to the unloading part 8, and the lifting cylinder 7 is connected between the lower connecting ear 305 and the unloading part 8. The height of the unloading part 8 is adjusted by the lifting cylinder 7. In addition, the lifting cylinder 7 is provided with a locking valve to prevent automatic leakage.

[0046] like Figure 8 As shown: the discharge part 8 includes a discharge frame 801, a head sprocket assembly 803, a receiving hopper assembly 805 and a transport transmission part 807. The head sprocket assembly 803 is installed in the groove of the discharge frame 801, and the transport transmission part 807 is installed outside the discharge frame 801. The transport transmission part 807 includes a variable frequency motor and a reducer. The variable frequency motor drives the head sprocket assembly 803 to rotate through the reducer. The running speed of the scraper chain 9 can be adjusted by adjusting the motor speed to adjust the transport volume per unit time. The receiving hopper assembly 805 is installed at the end of the discharge port of the discharge part 8 to stabilize the discharge and prevent the material from being thrown.

[0047] A spray mounting frame 804 is installed at the discharge port of the discharge rack 801, and the specific spray direction can be adjusted by adjusting the installation position of the row holes; the anti-crossing fence 808 is suspended and installed under the discharge rack 801, and can be folded and retracted to prevent people from passing through at will when the equipment is running.

[0048] like Fig. 9As shown: the head sprocket assembly 803 adopts a split structure design, including an end cover 8031, a bearing seat 8032, a small shaft 8033, a sprocket 8034, a half cover 8035, a drive shaft 8036, a key 8037, an adjustment gasket set 8038 and a bearing 8039. The drive shaft 8036 and the sprocket 8034 transmit power through spline engagement, and the two half covers 8035 that are buckled together form an axis connected between the two sprockets 8034. This structure not only provides a stable driving force for the operation of the scraper chain, but also facilitates disassembly and maintenance, thereby improving the use efficiency of the equipment.

[0049] like Figure 7 As shown: the wheel assembly 5 is composed of an axle assembly 501 and a tire assembly 502. The axle assembly 501 has the function of driving brake and parking brake, which ensures the driving safety of the equipment during the towing process. The tire assembly 502 adopts a polyurethane filled solid tire, which is suitable for the complex bottom geological conditions of the coal mine. The wheel assembly does not have the driving ability, but only has the function of lifting load support and towing movement.

[0050] like Figure 5 As shown: the right platform assembly 4 includes a right platform frame 404 and a hydraulic operating valve 402 and an integrated pump station 403 mounted on the right platform frame 404; a protective cover 401 is installed outside the hydraulic operating valve 402 and the integrated pump station 403 to protect the components, a bent plate 406 is installed at the rear of the protective cover 401 to serve as a ball valve for installing the spray system 12, a right rubber plate 405 is installed on the right platform frame 404 before and after the tire of the wheel assembly 5, and a right emergency stop button 407 is provided on the right platform assembly 4 outside the protective cover 401 to serve as a safety function for emergency shutdown.

[0051] like Figure 6 As shown: the integrated pump station 403 includes an oil tank 4031, an accumulator 4032, an integrated valve 4033, a motor 4034, a support shield 4035, a hydraulic pump 4037 and a hand pressure pump 4038; a pressure gauge 4036 is installed on the integrated valve 4033, and an oil temperature and level gauge 4039 is installed on the oil tank 4031. While reducing the layout of hydraulic pipelines, the practicality and safety of the equipment are improved. In addition, the oil tank maintenance manhole is designed on the right side of the pump station to facilitate daily cleaning and maintenance of the oil tank. The pump station is also integrated with a hydraulic pump 4037 and a hand pressure pump 4038, ensuring that the hydraulic system has the function of manually replenishing pressure in the event of a power outage, further improving the underground adaptability of the equipment.

[0052] like Fig.10As shown: the left platform assembly 2 includes a left platform frame 204 and a display 206 and a flameproof and intrinsically safe electric control box 207 mounted on the left platform frame 204, a rear guard 202 is installed outside the display 206, a front guard 201 is installed outside the flameproof and intrinsically safe electric control box 207, an audible and visual alarm device 208 is installed at the rear of the front guard 201, a left emergency stop button 203 is installed at the rear of the rear guard 202, which serves as a safety reminder and emergency stop, and a left rubber plate 205 is installed on the left platform frame 204 in front and behind the tire of the wheel assembly 5.

[0053] The communication interface of the electrical system adopts Ethernet or optical port, and has remote monitoring and operation of fault information, normal equipment operation parameters voltage, current, switch status, cylinder status and other data, meeting the needs of digital mining such as remote parameter setting, equipment control, fault reset, etc. Cameras are arranged in front and behind the fuselage to observe the receiving area, unloading area and operation area, with remote monitoring and uploading functions. Equipped with an electronic fence alarm system, when the equipment is powered on, continuous light and sound alarms will be emitted when a person approaches 1 meter away. The whole machine is equipped with an audible and visual alarm device 208, the alarm time and sound are adjustable, and there is a Chinese startup warning function. It shouts three times, and the content of the shout is "the conveyor is started (or the equipment is started), please pay attention", and it is equipped with a warning light.

[0054] A mobile scraper transfer machine for coal mine drift in this embodiment is used as a temporary transfer point, which is connected with the main transport or drift belt conveyor to transfer. It is used by many supporting comprehensive excavation teams. The transferred materials are mostly gangue and mudstone. When moving or changing the transfer point, the equipment is lifted to the designated position by a power vehicle such as a shovel truck through the front end ear of the material receiving part 1. First, the operator operates the flameproof and intrinsically safe electric control box 207 on the left side of the machine body to start the integrated pump station 403, and controls the lifting cylinder 7 to adjust the height of the discharge part 8 to the appropriate position by operating the hydraulic operating valve 402, and turns on the parking brake switch to ensure the stable parking of the equipment; then the flameproof and intrinsically safe electric control box 207 is operated to start the linkage induction function of the equipment. When the material car approaches the discharge, the scraper chain 9 starts to run, and when the material car is far away, the scraper chain 9 stops running; finally, the underground water supply is connected and the spray system is turned on to perform synchronous dust removal on the material receiving part and the discharge part during the material transportation and transfer process.

[0055] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those 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 mobile scraper transfer machine for coal mine chute, characterized by: It comprises a material receiving part (1), an intermediate frame (3), a material discharging part (8), a scraper chain (9), a left platform assembly (2), a right platform assembly (4) and a wheel assembly (5); The material receiving part (1), the intermediate frame (3) and the discharge part (8) are connected in sequence. The material receiving part (1) is tilted downward for receiving materials, and the discharge part (8) is lifted upward to discharge materials downward. The scraper chain (9) starts from the material receiving part (1), passes through the intermediate frame (3), the discharge part (8), the head sprocket assembly (803) on the discharge part (8), and the tail shaft assembly (106) on the material receiving part (1), and then returns to the material receiving part (1) to form a scraper conveying system; the head sprocket assembly (803) is connected to the transport transmission part (807); The wheel assembly (5) is located below the middle frame (3); The left platform assembly (2) is installed on the right side of the middle frame (3) and is integrated with and installed with an electric control system; The right platform assembly (4) is installed on the right side of the middle frame (3) and is integrated with and installed with a hydraulic system.

2. The mobile scraper transfer machine for coal mine chute according to claim 1, characterized in that: The material receiving portion (1) comprises a left hopper (101), a main frame (102), a right hopper (105), a tail shaft assembly (106) and a tensioning cylinder (109); the left hopper (101) and the right hopper (105) are installed on both sides of the main frame (102) to form a hopper with a large end, a small end and an open top, the small end of the hopper is connected to the middle frame (3), the tail shaft assembly (106) is arranged at the end of the material receiving portion (1), and the tail shaft assembly (106) is slidably assembled on the main frame (102) and connected to the tensioning cylinder (109) between the main frame (102).

3. A mobile scraper transfer machine for coal mine chute according to claim 2, characterized in that: The feed inlet of the material receiving part (1) is equipped with a buffer chain (104), and the small port of the hopper of the material receiving part (1) is equipped with a movable coal baffle (103) with adjustable height.

4. The mobile scraper transfer machine for coal mine chute according to claim 2, characterized in that: The intermediate frame (3) comprises a transport trough frame (302) and an upper connecting ear (301), a connecting plate (303), an axle connecting frame (304) and a lower connecting ear (305) fixed on the transport trough frame (302); the axle connecting frame (304) is connected to the wheel assembly (5); the connecting plate (303) is connected to the material receiving portion (1); the upper connecting ear (301) is hinged to the discharge portion (8); and a lifting cylinder (7) is connected between the lower connecting ear (305) and the discharge portion (8).

5. The mobile scraper transfer machine for coal mine drift according to claim 4, characterized in that: The unloading part (8) comprises a unloading frame (801), a head sprocket assembly (803), a receiving hopper assembly (805) and a transport transmission part (807). The head sprocket assembly (803) is installed in a groove of the unloading frame (801), and the transport transmission part (807) is installed outside the unloading frame (801). The transport transmission part (807) comprises a variable frequency motor and a reducer. The variable frequency motor drives the head sprocket assembly (803) to perform rotational motion through the reducer. The receiving hopper assembly (805) is installed at the end of the unloading port of the unloading part (8).

6. The mobile scraper transfer machine for coal mine drift according to claim 5, characterized in that: A spray mounting frame (804) is installed on the discharge frame (801) at the discharge port.

7. The mobile scraper transfer machine for coal mine drift according to claim 1, characterized in that: The right platform assembly (4) comprises a right platform frame (404) and a hydraulic operating valve (402) and an integrated pump station (403) mounted on the right platform frame (404); a protective cover (401) is installed outside the hydraulic operating valve (402) and the integrated pump station (403); a right rubber plate (405) is installed on the right platform frame (404) in front and behind the tire of the wheel assembly (5); and a right emergency stop button (407) is arranged on the right platform assembly (4) outside the protective cover (401).

8. The mobile scraper transfer machine for coal mine drift according to claim 7, characterized in that: The integrated pump station (403) comprises an oil tank (4031), an accumulator (4032), an integrated valve (4033), a motor (4034), a support shield (4035), a hydraulic pump (4037) and a hand pump (4038); a pressure gauge (4036) is installed on the integrated valve (4033), and an oil temperature and liquid level gauge (4039) is installed on the oil tank (4031).

9. The mobile scraper transfer machine for coal mine drift according to claim 1, characterized in that: The left platform assembly (2) comprises a left platform frame (204), a display (206) and a flameproof and intrinsically safe electric control box (207) mounted on the left platform frame (204); a rear guard (202) is installed outside the display (206); a front guard (201) is installed outside the flameproof and intrinsically safe electric control box (207); a sound and light alarm device (208) is installed at the rear of the front guard (201); a left emergency stop button (203) is installed at the rear of the rear guard (202); and a left rubber plate (205) is installed on the left platform frame (204) in front and behind the tire of the wheel assembly (5).

10. The mobile scraper transfer machine for coal mine drift according to claim 4, characterized in that: The main frame (102) of the material receiving part (1) is arranged at an angle of 13° to the ground, and the transport trough frame (302) of the intermediate frame (3) is arranged at an angle of 13° to the ground.

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