Integrated operation concrete paver for coal mine and paving method

Abstract

The application belongs to the technical field of auxiliary operation in underground coal mine, and particularly relates to an integrated operation concrete paver for coal mine and a paving method. The paver comprises a main frame, a paving accessory, a walking part, a transportation part and an explosion-proof engine assembly. The main frame adopts a frame structure, is provided with a cab, and is fixed on a frame body. The walking part adopts a caterpillar walking mechanism, and is connected with the bottom of the main frame. The transportation part is fixed with the main frame, and is arranged between the main frame and the walking part. The explosion-proof engine assembly is arranged at the side of the main frame, and provides power for the whole machine. The paver is driven by the explosion-proof engine, has the functions of manual remote control switching and personnel approach alarm, can effectively improve the paving work efficiency and quality, reduce the labor intensity, and achieve the purpose of automation, staff reduction and efficiency improvement. The paver has good social benefits for promoting the application of the paver in underground coal mine.

Description

Technical Field

[0001] This invention belongs to the field of underground auxiliary operation technology in coal mines, specifically an integrated concrete paver and paving method for coal mines. Background Technology

[0002] The hardening of underground roadway surfaces in coal mines is a crucial part of current mine construction, playing a vital role in improving auxiliary transportation efficiency and the underground environment. In large-scale coal mine production in China, explosion-proof trackless rubber-tired vehicles are widely used for transporting personnel, materials, and equipment. Simultaneously, large-tonnage support transport vehicles are often used for equipment installation and retraction at the working face, requiring underground roadway surfaces to be hardened with concrete, possessing high load-bearing capacity and strong resistance to damage. With the application and promotion of rapid tunneling equipment, the efficiency and quality of mine roadway surface hardening urgently need improvement. Low efficiency in roadway surface hardening and follow-up work has become a bottleneck in improving rapid tunneling efficiency, directly affecting the efficiency of all aspects of underground production, transportation, and tunneling operations. At the same time, there is a real need for intelligent and minimally manned operations in modern mine construction.

[0003] Due to the special nature of coal mine production sites and usage requirements, there is often no need for tie rod installation, joint cutting, and curing finishing. However, the processes of laying the base plate, setting out lines, setting up formwork, unloading, spreading materials, mixing, smoothing, and roughening still rely on manual labor. These processes are numerous, require a large amount of manpower, result in high labor intensity for workers, and have low work efficiency.

[0004] With the continuous development of intelligent coal mine construction, there is a need to develop an explosion-proof concrete paver that can be used in coal mine roadways. This paver should be adaptable to the undulating roadway floor and integrate multiple processes such as "formwork support, material conveying, unloading, spreading, mixing, vibration, compaction, smoothing, and roughening" to replace manual concrete floor construction, thereby effectively reducing the labor intensity of workers and improving work efficiency. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides an integrated concrete paver for coal mines and a paving method.

[0006] The present invention adopts the following technical solution: an integrated concrete paver for coal mines, comprising a main frame, paving attachments, a traveling unit, a transport unit, and an explosion-proof engine assembly; The main frame adopts a frame structure and is equipped with a driver's cab, which is fixed to the frame body; The walking unit adopts a tracked walking mechanism and is connected to the bottom of the main frame; The transport section is fixed to the main frame and arranged between the main frame and the traveling section; The explosion-proof engine assembly is located on the side of the main frame and provides power to the entire machine.

[0007] In some embodiments, it also includes a bias adjustment mechanism, a fabric device, and a napping device; One end of the adjustment mechanism is welded and fixed to the back plate of the fabric distribution device via a stiffening plate, and the other end is hinged to the paving attachment via a pin. The texturing device is connected to the paving attachment via four connecting rods, with the rod ends fixed by pins. The texturing device includes: a texturing plate, a sleeve, a lifting cylinder, a lateral movement cylinder, a frame, connecting rods, and a crossbeam. The roughened plate is designed with horizontal stripes and is connected to the frame via a lifting cylinder for adjusting the roughening depth. The lateral movement cylinder is hinged to the lifting cylinder, controlling the roughening plate to move laterally along the crossbeam to complete the road surface roughening operation.

[0008] In some embodiments, the adjustment mechanism includes a column cylinder, a guide sleeve, and a longitudinal slope adjustment cylinder; The column cylinder is arranged inside the guide sleeve and is fixed to the outer and inner cylinders of the guide sleeve by a pin. One end of the longitudinal slope adjustment cylinder is hinged to the inner cylinder of the guide sleeve via a pin, and the other end is hinged to the paving attachment via a pin.

[0009] In some embodiments, paving attachments include a paving board pressing mechanism, a paving extrusion die, a slipform, a slipform lifting cylinder, a tamping mechanism, a vibrating rod mechanism, and a vibrating mechanism lifting cylinder. The paving plate pressing mechanism is connected to the outside of the paving extrusion die via a nut fixing rod; The two ends of the flattening and extrusion die are connected to the sliding plate through sliding plate lifting cylinders; The vibrating rod mechanism is connected to the upper part of the leveling and extrusion mold via the vibrating mechanism lifting cylinder.

[0010] In some embodiments, the fabric-making device includes an auger, an auger box, an auger reducer, an auger motor, an auger hanger, and an auger back plate; The two ends of the auger are fixed by auger hangers, and the rotational power is provided by the auger box in the middle; The auger box and the auger back plate are fixed together by bolts.

[0011] In some embodiments, the bottom of the main frame is provided with four support legs, which are lifted by hydraulic cylinders. The outriggers are bolted to the bottom of the frame, providing space for equipment maintenance.

[0012] In some embodiments, the running gear includes a drive wheel, a drive motor, a reducer, a track roller, a carrier roller, a guide wheel, a track, and a connecting frame; The drive wheel is hinged to the drive motor and reducer via a pin; the connecting frame is fixed to the main frame via bolts.

[0013] A method for paving concrete in mine roadways, using the aforementioned paver, includes the following steps: The machine is driven to the work area from the cab. Retract the outriggers and start the transport unit to transport the concrete material to the drive drum; The concrete material is evenly distributed inside the slipform by the auger; The vibrating mechanism uses a lifting cylinder to drive the vibrating rod mechanism for vibration. The height difference between the leveling and extrusion die and the road surface to be paved is automatically adjusted by the alignment mechanism. The height of the slipform is controlled by a slipform lifting cylinder to shape the concrete. Secondary compaction is carried out using a tamping mechanism; The surface is roughened using a roughening device.

[0014] In some embodiments, the system also includes one-button start / stop and manual / remote automatic switching via an electronic control system; The operating status can be monitored in real time through the instrument display.

[0015] In some embodiments, a hydraulic control system is also included, which includes a hydraulic tank, a hydraulic pump, a multi-way valve, and a pilot operating handle. The hydraulic pump is connected to the explosion-proof engine assembly and pumps hydraulic oil to the multi-way valve. The multi-way valve switches the oil inlet and outlet directions via a pilot operating handle, delivering hydraulic oil to the various actuators in the paving attachments, alignment mechanism, material placement device, traveling unit, and transport unit.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention features a built-in paving, roughening, and alignment mechanism, enabling it to complete the entire paving process for underground coal mine roads. It replaces manual concrete slab laying and achieves integrated single-machine operation of multiple processes, including "formwork support, material conveying, unloading, material placement, mixing, vibration, compaction, smoothing, and roughening." This solves the technical problems of manual operation, complex procedures, high labor intensity, low efficiency, and poor paving quality in existing underground coal mine technologies.

[0017] The adjustment mechanism of this invention can sense the working tilt angle of the paving attachment through horizontal and vertical slope tilt angle sensors, and control the adjustment mechanism to adjust the working posture of the paving attachment. It is integrated with the paving attachment, with a simple overall structure and small size, and is suitable for paving operations in confined spaces in underground coal mines.

[0018] The present invention provides an automatic texturing device at the front end of the paver to achieve automatic texturing and adjust the texturing depth, replacing manual texturing work, reducing work steps and labor intensity.

[0019] The present invention provides outriggers at the bottom of the main frame of the paver. When the paving attachments and transport parts are being inspected, the outriggers extend and support the ground, which facilitates the maintenance of the bottom of the whole machine. When traveling, the outriggers can be retracted away from the ground.

[0020] The vibration mechanism of this invention has a lifting function, which adjusts the concrete vibration height according to the thickness of the paved road surface, so that the concrete vibration work is more thorough and greatly improves the paving quality of the roadbed.

[0021] This invention uses an explosion-proof engine and features manual / remote control switching and personnel proximity alarm functions. It can effectively improve paving efficiency and quality, reduce labor intensity, and achieve the goal of automation, reducing manpower and increasing efficiency. It has good social benefits for promoting the application of pavers in underground coal mines. Attached Figure Description

[0022] Figure 1 Structural axis diagram of the paver Figure 2 This is a schematic diagram of the main frame structure. Figure 3 This is a main diagram of the main frame structure; Figure 4 This is a top view of the paving attachment structure; Figure 5 This is a schematic diagram of the alignment mechanism. Figure 6 This is a schematic diagram of the fabric distribution device. Figure 7 This is a schematic diagram of the running gear structure; Figure 8 This is a structural diagram of the Ministry of Transport. Figure 9 This is a schematic diagram of the texturing device; In the diagram, 1-Main frame; 2-Paving attachments; 3-Adjustment mechanism; 4-Paving device; 5-Traveling unit; 6-Transportation unit; 7-Explosion-proof engine assembly; 8-Hydraulic system; 9-Electrical control system; 10-Texturing device; 1.1-Driver's cab; 1.2-Safety cover; 1.3-Frame body; 1.4-Lifting cylinder; 2.1-Plain slab pressing mechanism; 2.2-Plain slab extrusion die; 2.3-Sliding template; 2.4-Sliding template lifting cylinder; 2.5-Tamping mechanism; 2.6-Vibrator mechanism; 2.7-Vibrator lifting cylinder; 3.1-Column cylinder; 3.2-Guide sleeve; 3.3-Longitudinal slope adjustment cylinder; 3.4-Connecting stiffener; 4.1-Auger; 4.2-Auger box; 4.3-Auger reducer; 4.4-Auger motor; 4.5-Auger hanger; 4.6-Auger back plate; 5.1-Drive wheel; 5.2-Drive motor; 5.3-Reducer; 5.4-Support roller; 5.5-Carrier roller; 5.6-Guide roller; 5.7-Track; 5.8-Connecting frame; 6.1-Drive roller; 6.2-Belt tensioning mechanism; 6.3-Belt conveyor intermediate frame; 6.4-Suspension mounting base; 6.5-Conveyor belt; 6.6-Receiving hopper; 6.7-Idling roller; 6.8-Hydraulic motor; 8.1-Hydraulic oil tank; 8.2-Hydraulic pump; 8.3-Multi-way valve; 8.4-Pilot operating handle; 9.1 Electrical control box; 9.2 Instrument display; 9.3 Alarm; 9.4 Emergency stop device; 10.1-Scrubbing plate; 10.2-Sleeve; 10.3-Lifting cylinder; 10.4-Horizontal movement cylinder; 10.5-Frame; 10.6-Connecting rod; 10.7-Crossbeam. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, an integrated concrete paver for coal mines comprises a main frame 1, paving attachments 2, a eccentric adjustment mechanism 3, a concrete placement device 4, a traveling unit 5, a transport unit 6, an explosion-proof engine assembly 7, a hydraulic system 8, an electrical control system 9, and a texturing device 10.

[0025] The front end of the main frame 1 is welded and fixed to the back plate of the material placing device 4. The lower end of the main frame 1 is connected to the traveling part 5 by high-strength bolts. The transport part 6 is arranged between the main frame 1 and the traveling part 5 and is fixed to the main frame 1 by bolts. One end of the adjustment mechanism 3 is welded and fixed to the back plate of the material placing device 4 by a stiffening plate, and the other end is hinged to the paving attachment 2 by a pin. The texturing device 10 is connected to the paving attachment 2 by four connecting rods, and the ends of the rods are fixed by pins. The structure of the slip-mode concrete paver with adaptive bottom plate for coal mines is as follows. Figure 1 As shown.

[0026] like Figure 2 , 3 As shown, the main frame 1 consists of a cab 1.1, a protective cover 1.2, a frame body 1.3, and outriggers 1.4. The cab 1.1 is fixed to the frame body 1.3 with bolts, the protective cover 12 is fixed to the frame body 1.3 with bolts, and the four outriggers 1.4 are fixed to the bottom of the frame body 1.3 with bolts.

[0027] like Figure 4 As shown, the paving attachment 2 includes a paving plate pressing mechanism 2.1, a paving and extrusion die 2.2, a sliding template 2.3, a sliding template lifting cylinder 2.4, a tamping mechanism 2.5, a vibrating rod mechanism 2.6, and a vibrating mechanism lifting cylinder 2.7. One end of the fixed seat of the paving plate pressing mechanism 2.1 is welded to the outside of the paving and extrusion die 2.2, and the other end is fixed to the fixed rod of the paving plate pressing mechanism 2.1 by a nut. The lifting and lowering of the pressing mechanism 2.1 is controlled by adjusting the thread height of the fixed rod. Both ends of the paving and extrusion die 2.2 are connected to the sliding template 2.3 via the sliding template lifting cylinder 2.4. The height of the sliding template 2.3 is controlled by the sliding template lifting cylinder 2.4. The tamping mechanism 2.5 is arranged on the back side of the paving and extrusion die 2.2, and the vibrating rod mechanism 2.6 is connected to the upper rear of the paving and extrusion die 2.2 via the vibrating mechanism lifting cylinder 2.7. The lifting and lowering of the vibrating rod mechanism 2.6 is adjusted.

[0028] like Figure 5 As shown, the eccentricity adjustment mechanism 3 includes a column cylinder 3.1, a guide sleeve 3.2, a longitudinal slope adjustment cylinder 3.3, and a connecting stiffener 3.4. The column cylinder 3.1 is arranged inside the guide sleeve 3.2, with one end fixed to the outer cylinder of the guide sleeve by a pin and the other end fixed to the inner cylinder of the guide sleeve by a pin, ensuring that the column cylinder 3.1 drives the inner cylinder of the guide sleeve to rise and fall; one end of the longitudinal slope adjustment cylinder 3.3 is hinged to the inner cylinder of the guide sleeve 3.2 by a pin, and the other end is hinged to the paving attachment 2 by a pin.

[0029] like Figure 6 As shown, the fabric feeding device 4 includes an auger 4.1, an auger box 4.2, an auger reducer 4.3, an auger motor 4.4, an auger hanger 4.5, and an auger back plate 4.6. The two ends of the auger 4.1 are fixed by the auger hanger 4.5, and the auger box 4.2 provides rotational power in the middle. The auger reducer 4.3 and the auger motor 4.4 are arranged on both sides of the top of the auger box 4.2. The auger box 4.2 and the auger back plate 4.6 are fixed with bolts. The auger hanger 4.5 has different holes located on the upper stiffening plate of the auger back plate 4.6 and is connected by bolts.

[0030] like Figure 7 As shown, the traveling unit 5 includes a drive wheel 5.1, a drive motor 5.2, a reducer 5.3, a support roller 5.4, a track roller 5.5, a guide wheel 5.6, a track 5.7, and a connecting frame 5.8. The drive wheel 5.1 is hinged to the drive motor 5.2 and the reducer 5.3 via a pin, and the connecting frame 5.8 is located on the inner side and fixed to the main frame by bolts.

[0031] like Figure 8As shown, the transport section 6 includes a drive roller 6.1, a belt tensioning mechanism 6.2, a belt conveyor intermediate frame 6.3, a suspension mounting base 6.4, a transport belt 6.5, a receiving hopper 6.6, and a redirecting roller 6.7. The transport section 6 is bolted to the main frame 1 via the suspension mounting base 6.4. The belt tensioning mechanism 6.2 is arranged on both sides of the drive roller 6.1 to ensure that the belt is in a tensioned state. The receiving hopper 6.6 is located above the redirecting roller 6.7, and its back side is bolted to the main frame 1.

[0032] The explosion-proof engine assembly 7 uses an explosion-proof diesel engine and is connected to the hydraulic pump 8.2 via a coupling.

[0033] like Figure 2 As shown, the hydraulic system 8 provides power to the paving attachment 2, the alignment mechanism 3, the concrete placement device 4, the traveling unit 5, and the transport unit 6. It includes a hydraulic oil tank 8.1, a hydraulic pump 8.2, a multi-way valve 8.3, and a pilot operating handle 8.4. The drive component in the traveling unit 5 is a hydraulic motor 5.2. The hydraulic pump 8.2 is connected to the engine assembly 7 and is used to pump the hydraulic oil in the hydraulic oil tank 8.1 to the multi-way valve 8.3. The multi-way valve 8.3 reverses the oil flow through the pilot operating handle 8.4, sending the hydraulic oil to the cylinders in the paving attachment 2, the alignment mechanism 3, and the concrete placement device 4, as well as the auger motor 4.4, the drive motor 5.2, and the hydraulic motor 6.8.

[0034] The electrical control system 9 enables one-button start / stop and manual / remote switching, improving the automation of the mining explosion-proof engine-driven paver and ensuring overall safety. The electrical control system includes an electrical control box 9.1, an instrument display 9.2, an alarm 9.3, and an emergency stop device 9.4. The instrument display 9.2 has a data upload function, monitoring the overall operating status of the mining engine-driven tracked dual-cab unit support transport robot in real time. The alarm 9.3 has a personnel proximity alarm function. The emergency stop device 9.4 has an emergency stop function in case of emergencies, improving the overall safety performance of the machine.

[0035] like Figure 9 As shown, the texturing device 10 includes a texturing plate 10.1, a sleeve 10.2, a lifting cylinder 10.3, a lateral movement cylinder 10.4, a frame 10.5, connecting rods 10.6, and a crossbeam 10.7. The texturing plate 10.1 is designed with horizontal stripes. The sleeve 10.2 is arranged on the outside of the cylinder of the lifting cylinder 10.3, and its bottom is hinged to the texturing plate 10.1 and the bottom piston rod of the lifting cylinder 10.3 by a pin. The outside of the cylinder of the lifting cylinder 10.3 is designed with an ear plate. The lateral movement cylinder 10.4 is hinged to the cylinder of the lifting cylinder 10.3 at one end by a pin, and to the frame 10.5 at the other end. The left and right frames 10.5 are fixed by the middle crossbeam 10.4, and the back is fixed to the paving attachment 2 by four sets of connecting rods 10.6.

[0036] Workflow: In a coal mine, the outriggers 1.4 of a slip-mode concrete paver with an adaptive base plate retract to maintain paving operation. The drive roller 6.1 in the transport section 6 rotates, and the concrete truck tilts the evenly mixed concrete into the receiving hopper 6.6. The concrete is then transported to the drive roller 6.1 via the conveyor belt 6.5. The auger 4.1 below the drive roller 6.1 evenly distributes the concrete inside the slip formwork 2.3. The vibrating mechanism's lifting cylinder 2.7 drives the vibrating rod mechanism 2.6 to rise and fall, penetrating deep into the concrete material for vibration, ensuring the density of the concrete pavement. Based on the set thickness of the paved pavement, the offset mechanism 3 is automatically adjusted via a stroke sensor to ensure the height difference between the base plate of the extrusion mold 2.2 and the pavement surface is equal to the set thickness of the paved pavement. Then, the slip formwork is adjusted... The lifting cylinder 2.4 raises and lowers, causing the bottom plate of the sliding formwork 2.3 to contact the road surface to be paved. The tamping mechanism 2.5 drives the eccentric wheel to rotate and further tampe the concrete material. Then, the leveling and extrusion mold 2.2 and the sliding formwork 2.3 are fixed and shaped. According to the actual situation, the height of the paving plate pressing mechanism 2.1 can be adjusted to extrude and shape the concrete road surface a second time. Then, the height of the lifting cylinder 10.3 is adjusted according to the paving thickness and the roughening depth, which drives the roughening plate 10.1 to rise and fall. The left and right lateral movement cylinder 10.4 is adjusted to slide along the crossbeam 10.7 from the middle position to both ends to complete the lateral roughening of the road surface. This realizes the integrated operation of multiple processes such as "formwork support - material conveying - material unloading - material spreading - mixing - vibration - tamping - smoothing - roughening".

[0037] The bottom of the frame 1.3 of the slip-mode concrete paver is equipped with four outriggers 1.4. The paver is raised by hydraulic cylinders of the outriggers 1.4 to ensure maintenance space for the paving attachments 2, the material placement device 4 and the transport unit 6.

[0038] Operators can control the above-mentioned paver actions by operating the remote / manual switching valve.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated concrete paver for coal mines, characterized in that, It includes a main frame (1), paving attachments (2), a running gear (5), a transport gear (6), and an explosion-proof engine assembly (7); The main frame (1) adopts a frame structure and is equipped with a driver's cab (1.1), which is fixed on the frame body (1.3); The walking unit (5) adopts a tracked walking mechanism and is connected to the bottom of the main frame (1); The transport section (6) is fixed to the main frame (1) and is arranged between the main frame (1) and the walking section (5); The explosion-proof engine assembly (7) is located on the side of the main frame (1) and provides power to the whole machine; It also includes a bias adjustment mechanism (3), a fabric device (4), and a napping device (10); One end of the adjustment mechanism (3) is welded and fixed to the back plate of the fabric device (4) through a stiffening plate, and the other end is hinged to the paving attachment (2) through a pin. The texturing device (10) is connected to the paving attachment (2) by four connecting rods, and the ends of the rods are fixed by pins. The texturing device (10) includes: a texturing plate (10.1), a sleeve (10.2), a lifting cylinder (10.3), a lateral moving cylinder (10.4), a frame (10.5), a connecting rod (10.6), and a crossbeam (10.7). The roughening plate (10.1) is designed with horizontal stripes and is connected to the frame (10.5) via a lifting cylinder (10.3) for adjusting the roughening depth; The transverse cylinder (10.4) is hinged to the lifting cylinder (10.3) to control the roughening plate (10.1) to move laterally along the crossbeam (10.7) to complete the road surface roughening operation; The adjustment mechanism (3) includes a column cylinder (3.1), a guide sleeve (3.2), and a longitudinal slope adjustment cylinder (3.3); The column cylinder (3.1) is arranged inside the guide sleeve (3.2) and is fixed to the outer and inner cylinders of the guide sleeve by a pin. One end of the longitudinal slope adjustment cylinder (3.3) is hinged to the inner cylinder of the guide sleeve (3.2) by a pin, and the other end is hinged to the paving attachment (2) by a pin.

2. The integrated concrete paver for coal mines according to claim 1, characterized in that, The paving attachment (2) includes a paving plate pressing mechanism (2.1), a paving extrusion mold (2.2), a sliding template (2.3), a sliding template lifting cylinder (2.4), a tamping mechanism (2.5), a vibrating rod mechanism (2.6), and a vibrating mechanism lifting cylinder (2.7); The flat paving press mechanism (2.1) is connected to the outside of the flat paving extrusion die (2.2) via a nut fixing rod; The flattening and extrusion die (2.2) is connected to the sliding plate (2.3) at both ends via sliding plate lifting cylinders (2.4); The vibrating rod mechanism (2.6) is connected to the upper rear of the leveling extrusion mold (2.2) via the vibrating mechanism lifting cylinder (2.7).

3. The integrated concrete paver for coal mines according to claim 2, characterized in that, The fabric-making device (4) includes an auger (4.1), an auger box (4.2), an auger reducer (4.3), an auger motor (4.4), an auger hanger (4.5), and an auger back plate (4.6); the two ends of the auger (4.1) are fixed by the auger hanger (4.5), and the middle is provided with rotational power by the auger box (4.2); The auger box (4.2) and the auger back plate (4.6) are fixed together by bolts.

4. The integrated concrete paver for coal mines according to claim 3, characterized in that, The main frame (1) is equipped with four support legs (1.4) at the bottom, which are used to achieve lifting and lowering functions through support leg cylinders; The outrigger (1.4) is fixed to the bottom of the frame (1.3) by bolts, providing space for equipment maintenance.

5. The integrated concrete paver for coal mines according to claim 4, characterized in that, The walking unit (5) includes a drive wheel (5.1), a drive motor (5.2), a reducer (5.3), a support roller (5.4), a track roller (5.5), a guide wheel (5.6), a track (5.7), and a connecting frame (5.8); The drive wheel (5.1) is hinged to the drive motor (5.2) and the reducer (5.3) by a pin; the connecting frame (5.8) is fixed to the main frame (1) by bolts.

6. A method for paving concrete in mine roadways, using the paver described in claim 5, characterized in that, Includes the following steps: The machine is driven to the work area via the cab (1.1); Retract the outriggers (1.4) and start the transport unit (6) to transport the concrete material to the drive roller (6.1); The concrete material is evenly distributed on the inside of the slipform (2.3) by the auger (4.1); The vibrating mechanism uses a lifting cylinder (2.7) to drive the vibrating rod mechanism (2.6) for vibration. The height difference between the leveling and extrusion die (2.2) and the road surface to be paved is automatically adjusted by the adjustment mechanism (3); The height of the slipform plate (2.3) is controlled by the slipform lifting cylinder (2.4) to shape the concrete. Secondary compaction is carried out using the tamping mechanism (2.5); The surface roughening is completed by the roughening device (10).

7. The method for paving concrete in mine roadways according to claim 6, characterized in that, It also includes one-button start / stop and manual / remote automatic switching via an electronic control system (9); The operating status can be monitored in real time via the instrument display (9.2).

8. The integrated concrete paver for coal mines according to claim 1, characterized in that, It also includes a hydraulic control system, which comprises a hydraulic oil tank (8.1), a hydraulic pump (8.2), a multi-way valve (8.3), and a pilot operating handle (8.4); The hydraulic pump (8.2) is connected to the explosion-proof engine assembly (7) and pumps hydraulic oil to the multi-way valve (8.3); The multi-way valve (8.3) switches the oil inlet and outlet through the pilot operating handle (8.4) to send hydraulic oil to the actuators in the paving attachment (2), the alignment mechanism (3), the spreading device (4), the traveling part (5), and the transport part (6).

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