Tunnel ballast bed pulverized coal cleaning vehicle

Abstract

The embodiment of the utility model provides a tunnel ballast bed pulverized coal cleaning vehicle. The tunnel ballast bed pulverized coal cleaning vehicle comprises a power vehicle, a middle suction vehicle and a side suction vehicle which are sequentially connected through bearing connecting pieces. Wherein the power vehicle comprises a first engine, a second engine, a hydraulic system and an air compressor system and provides power for running and operation of the whole machine; the middle suction vehicle and the side suction vehicle are each provided with an operation device and have the functions of providing negative pressure and removing dust, in the operation process, parts in all the vehicles are matched with one another to achieve pulverized coal cleaning, pulverized coal in a tunnel ballast bed can be effectively removed and collected, and the railway maintenance machine is suitable for the technical field of railway maintenance machines.

Description

Technical Field

[0001] The present application relates to the technical field of railway maintenance machinery, and in particular to a tunnel roadbed coal powder cleaning vehicle. Background Art

[0002] At present, the roofs of coal-carrying vehicles used on domestic railway coal-carrying lines are open-top structures. When coal-carrying trains enter and exit tunnels and when vehicles intersect or pass each other in tunnels, the turbulent airflow generated will blow the coal powder and some coal blocks in the carriages out of the carriages and scatter them on the roadbed surface, drainage ditches and shelters in the tunnels. The coal powder raised by the passing trains will seriously affect the train driver's vision. When the coal powder and coal blocks are deposited thickly, they will bury the rails, endangering the safety of the train.

[0003] Currently, the cleaning of scattered coal dust and coal dust particles inside and outside the railway trackbed is mostly done manually, which is labor-intensive and inefficient. Some vehicles capable of completing coal dust cleaning operations are in use, but these vehicles suffer from incomplete coal dust collection and insufficient reach of the operating equipment. After the operation is completed, workers still need to return to complete the final cleaning of the coal dust. There is an urgent need to design a coal dust cleaning device that can efficiently absorb coal, adapt to different trackbed types, and conveniently and efficiently clean coal dust, reducing labor intensity and resolving the labor-intensive and inefficient problem of manual coal removal. Summary of the Invention

[0004] In order to solve one of the above-mentioned technical defects, an embodiment of the present application provides a tunnel roadbed coal powder cleaning vehicle that effectively removes and collects coal powder in the tunnel roadbed.

[0005] The embodiment of the present application provides a tunnel roadbed coal powder cleaning vehicle, comprising: a power vehicle, a center suction vehicle, and a side suction vehicle connected in sequence via a load-bearing connector;

[0006] The central suction vehicle comprises a central suction vehicle frame, on which a central suction operation room, a central suction working device, a central suction dust removal room and a central suction air suction room are sequentially arranged;

[0007] The central suction working device comprises two central suction sweeping and suction assemblies symmetrically arranged along the extension direction of the tunnel roadbed, and the central suction sweeping and suction assemblies comprise a shell;

[0008] The upper portion of the housing is connected to one end of the swinging suction pipe, and the other end of the swinging suction pipe is connected to the middle suction dust removal chamber;

[0009] The middle suction air chamber provides negative pressure for the middle suction working device and the middle suction dust removal chamber;

[0010] The power vehicle (1) comprises a power vehicle frame (11), a front driver's cab, a No. 1 engine, a No. 2 engine, a hydraulic system, a generator set, an air compressor system, an electrical system, and a control system. The No. 1 engine and the No. 2 engine are respectively arranged on both sides of the hydraulic system, and the engine set and the air compressor system are arranged at the rear end of the power vehicle frame. The No. 1 engine and the No. 2 engine provide power for the hydraulic system of the entire vehicle, and the generator set provides power for the entire vehicle.

[0011] The side suction vehicle includes a side suction vehicle frame, on which a front suction air chamber, a front suction dust removal chamber, a side suction operating chamber, a side suction working device, a rear suction dust removal chamber and a rear suction air chamber are sequentially arranged. The front suction air chamber provides negative pressure for the side suction working device and the front suction dust removal chamber, and the rear suction air chamber provides negative pressure for the side suction working device and the rear suction dust removal chamber.

[0012] The coal dust cleaning vehicle provided in the embodiments of the present application is used, with a power vehicle, a center suction vehicle, and a side suction vehicle arranged in sequence, to effectively remove and collect coal dust from the tunnel roadbed. The center suction vehicle and the side suction vehicle jointly perform sweeping and suction operations on the working surface. The center suction vehicle sweeps and collects coal dust within 2100mm from the center of the track on the tunnel roadbed, and the side suction vehicle sweeps and collects coal dust within 1300-3600mm from the center of the track on the tunnel roadbed. The coal dust is then transferred to the material vehicle for unified processing. The working surface covers a large area and can meet the coal dust cleaning needs of most operating lines. It can be applied to the cleaning of coal dust in tunnel roadbeds of various specifications, and can clean coal dust on rails, sleepers, and both sides of the rails. It can effectively solve the problems of dust caused by coal dust affecting the driver's vision and burying rails and sleepers, making it impossible to perform maintenance operations. At the same time, it avoids damage to the track caused by long-term cleaning of coal dust, increases the service life of the track, and ensures the safety of train operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0014] Figure 1 A schematic diagram of the structure of a tunnel roadbed coal powder cleaning vehicle provided in an embodiment of the present application;

[0015] Figure 2 A schematic structural diagram of a power vehicle for a tunnel roadbed coal dust cleaning vehicle provided in an embodiment of the present application;

[0016] Figure 3 A schematic structural diagram of a central suction vehicle of a tunnel roadbed coal dust cleaning vehicle provided in an embodiment of the present application;

[0017] Figure 4 A schematic structural diagram of a side suction vehicle for a tunnel roadbed coal dust cleaning vehicle provided in an embodiment of the present application;

[0018] Figure 5 A schematic structural diagram of a mid-suction working device of a tunnel roadbed coal dust cleaning vehicle provided in an embodiment of the present application;

[0019] Figure 6 A schematic structural diagram of a mid-suction sweeping and suction assembly of a tunnel roadbed coal powder cleaning vehicle provided in an embodiment of the present application;

[0020] Figure 7 A side view of a center suction working device of a tunnel roadbed coal dust cleaning vehicle provided in an embodiment of the present application;

[0021] Figure 8 A schematic diagram of another state of the intermediate suction working device of a tunnel roadbed coal powder cleaning vehicle provided in an embodiment of the present application;

[0022] Figure 9 A schematic diagram of another state of the central suction and sweeping suction assembly of a tunnel roadbed coal powder cleaning vehicle provided in an embodiment of the present application;

[0023] Figure 10 A schematic structural diagram of a middle suction dust removal chamber of a tunnel roadbed coal powder cleaning vehicle provided in an embodiment of the present application;

[0024] Figure 11 A schematic structural diagram of a side suction working device of a tunnel roadbed coal powder cleaning vehicle provided in an embodiment of the present application;

[0025] Figure 12 A schematic structural diagram of a radiator for a tunnel roadbed coal powder cleaning vehicle provided in an embodiment of the present application.

[0026] In the figure: 1 is the power car, 11 is the power car frame, 12 is the front driver's cab, 13 is the front power system, 14 is the cooling system, 15 is the rear power system, 16 is the generator set, 111 is the first driving bogie, 141 is the radiator, 1411 is the first louver, 1412 is the second louver, 1413 is the third louver, 1414 is the fourth louver, and 1415 is the self-contained pipe;

[0027] 2 is a middle suction car, 21 is a middle suction car frame, 22 is a first conveying belt, 23 is a middle suction operation room, 24 is a middle suction working device, 25 is a middle suction dust removal room, 26 is a middle suction suction room, 211 is a second driving bogie, 241 is a shell, 242 is a swing suction pipe, 243 is a lifting assembly, 244 is a transverse moving assembly, 251 is a gravity dust remover, 252 is a cyclone dust remover, 253 is a bag dust remover, 254 is a unloader, 2412 is a coal suction port, 2431 is a lifting rod, 2432 is a hollow guide rod, 2441 is a transverse moving rod, and 2442 is a hollow transverse rod;

[0028] 3 is a side suction car, 31 is a side suction car frame, 33 is a front side suction suction room, 34 is a front side suction dust removal room, 35 is a side suction operation room, 36 is a side suction working device, 37 is a rear side suction dust removal room, 38 is a rear side suction suction room, 39 is a rear driver's room, 311 is a driven bogie, 321 is a second conveying belt, 322 is a third conveying belt, 323 is a fourth conveying belt, 3610 is a side suction sweeping and suction assembly, 3611 is a connecting arm, and 3612 is a coal suction pipe. DETAILED DESCRIPTION

[0029] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application are further described in detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0030] In the process of implementing the present application, the inventors found that it is currently an urgent problem to provide a coal powder cleaning vehicle which can be applied to various specifications of tunnel bed coal powder cleaning and has good cleaning effect.

[0031] In view of the above problems, the tunnel bed coal powder cleaning vehicle is provided in the embodiments of the present application.

[0032] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the coal powder cleaning vehicle comprises: a power car 1, a middle suction car 2 and a side suction car 3 connected in sequence through bearing connecting pieces. The power car 1 comprises a power car frame 11, the middle suction car comprises a middle suction car frame 21, and the side suction car comprises a side suction car frame 31; the power car frame 11, the middle suction car frame 21 and the side suction car frame 31 are all lightweight structures combined with H-shaped main beams and frames. The rear end of the power car frame 11, the front end and the rear end of the middle suction car frame 21 and the front end of the side suction car frame 31 are all provided with bearing interfaces, and the three carriages are connected together in a lightweight manner through the bearing connecting pieces.

[0033] The first conveying belt 22 is arranged below the middle suction car 2, the second conveying belt 321, the third conveying belt 322 and the fourth conveying belt 323 are arranged below the side suction car 3; the fourth conveying belt 323 comprises a telescopic mechanism, and one end of the telescopic mechanism away from the side suction car 3 is connected with a material car through a detachable connecting piece. The coal powder cleaned and settled on the first conveying belt 22 by the middle suction car 2 is conveyed to the second conveying belt 321; the coal powder on the second conveying belt 321 and the coal powder cleaned by the side suction car 3 are settled in the third conveying belt 322, and the coal powder on the third conveying belt 322 is conveyed to the material car through the telescopic mechanism by the fourth conveying belt 323. The cleaned coal powder can be recycled by the material car, or the coal powder can be thrown to the two sides away from the track by setting a throwing belt at the tail of the material car.

[0034] Specifically, the detachable connecting piece can be clamping connection, magnetic attraction connection or bolt connection, which will not be described here again. When the material car is not needed, the material car is separated from the telescopic mechanism, so that the length is not over the limit in the state of the car being collected.

[0035] The embodiment of the present application provides a specific structure of the middle suction car, as shown in Figure 3 、 Figure 5 、 Figure 6 and Figure 7 , the middle suction car 2 comprises a middle suction car frame 21, and a middle suction operation room 23, a middle suction working device 24, a middle suction dust removal room 25 and a middle suction suction room 26 are sequentially arranged on the middle suction car frame 21. The middle suction working device 24 comprises two middle suction sweeping and sucking assemblies which are symmetrically arranged along the extension direction of the tunnel track bed, and each middle suction sweeping and sucking assembly comprises a shell 241; one end of a swing suction pipe 242 is in communication with the upper portion of the shell 241, and the other end of the swing suction pipe 242 is in communication with the middle suction dust removal room 25; and the middle suction suction room 26 provides negative pressure for the middle suction working device 24 and the middle suction dust removal room 25.

[0036] Further, two roller brush shafts are arranged in parallel in the shell 241, the roller brush shafts are connected with the output ends of driving motors, and the roller brush shafts are rotatably connected with the shell 241 through bearings; brush hairs are arranged on the outer walls of the roller brush shafts, and the brush hairs sweep up the coal powder on the tunnel track bed. The middle suction working device sweeps up the coal powder within 2100mm from the track center of the tunnel track bed, and the swept-up coal powder enters the middle suction dust removal room through the swing suction pipe and is subjected to settlement treatment.

[0037] Specifically, a coal suction hood is provided between the two roller brush shafts. The top of the coal suction hood is connected to the swinging suction pipe 242 through the coal suction port 2412 provided on the shell 241. The coal powder swept by the brush bristles enters the coal suction port through the coal suction hood, and then enters the intermediate suction dust removal chamber through the swinging suction pipe. The hood opening of the coal suction hood adopts a double-layer structure consisting of an inner hood opening and an outer hood opening. A gap of a certain width is provided between the inner and outer hood openings. The coal suction hood can be supplied with air through the gap to prevent pollutants such as coal powder from accumulating and blocking the hood opening, thereby affecting the efficiency of the suction operation. A guide plate is provided below the coal suction hood opening. The operating direction of the coal suction hood is at a certain angle to the vertical direction, so that the coal powder swept by the roller brush can more easily enter the coal suction hood.

[0038] Figure 8 This is a schematic diagram of another state of the middle suction working device of a tunnel roadbed coal powder cleaning vehicle provided in an embodiment of the present application. Figure 9 This is a schematic diagram of another state of the middle suction and sweeping suction component of a tunnel roadbed coal powder cleaning vehicle provided in an embodiment of the present application, as shown in FIG. Figure 8 and Figure 9 As shown, at least one lifting assembly 243 is further provided on each of the two housings 241. The lifting assembly 243 includes a lifting rod 2431, one mounted on each housing 241. The outer wall of each lifting rod 2431 is sleeved with a hollow guide rod 2432. The hollow guide rod 2432 is mounted on the center suction vehicle frame 21. The lifting rod 2431 and the hollow guide rod 2432 are connected by a lifting cylinder. The lifting assembly can be used to raise and lower the housing, thereby raising and lowering the center suction sweeping assembly. When not in use, the center suction sweeping assembly can be raised to avoid damage to the bristles.

[0039] Specifically, two lifting assemblies 243, mounted on two housings 241 and symmetrically arranged along the tunnel bed, are connected together via a transverse assembly 244. Transverse assembly 244 includes a transverse rod 2441 connected to a hollow guide rod 2432 of one lifting assembly 243. A hollow crossbar 2442 is sheathed around the outer wall of transverse rod 2441. The end of hollow crossbar 2442, distal from transverse rod 2441, is connected to the hollow guide rod 2432 of the other lifting assembly 243. Transverse rod 2441 and hollow crossbar 2442 are connected via a transverse cylinder. The transverse assembly allows for adjustment of the distance between the two symmetrically arranged central suction and sweeping assemblies on either side of the tunnel bed, accommodating cleaning operations of varying tunnel bed specifications and providing high adaptability.

[0040] More specifically, the lifting assembly 243 and the transverse movement assembly 244 can be connected by disposing the hollow guide rod 2432 on the frame of the middle suction vehicle, or by disposing the hollow cross bar 2442 on the frame of the middle suction vehicle.

[0041] Only two operators are required in the middle suction operation room 23 to carry out the coal powder cleaning operation within the range of 2100mm from the center of the track. The working position of the middle suction sweeping and suction assembly is adjusted by controlling the transverse cylinder. At the same time, the angle of the swinging suction pipe 242 is adjusted so that the inlet end of the swinging suction pipe 242 is always directly above the interface connected to the coal suction port 2412; the roller brush shaft throws the coal powder in the working position area into the coal suction hood, and then sends the coal powder to the middle suction dust removal chamber 25 through negative pressure suction.

[0042] Figure 10 A schematic diagram of the structure of a middle suction dust removal chamber of a tunnel roadbed coal powder cleaning vehicle provided in an embodiment of the present application is shown as follows: Figure 10 As shown, further, a gravity dust collector 251, a cyclone dust collector 252, and a bag dust collector 253 are sequentially connected in the middle suction dust removal chamber 25; a discharger 254 is provided below the gravity dust collector 251, the cyclone dust collector 252, and the bag dust collector 253. The gravity dust collector 251 is connected to the swing suction pipe 242, and the bag dust collector 253 is connected to the middle suction air chamber 26. The middle suction feeding device 22 is provided below the discharger 254. Specifically, a variable cross-section air duct is provided inside the ceiling of the middle suction air chamber 26 to reduce the air circulation speed and reduce dust.

[0043] The inner cavity size of the gravity dust collector 251 is larger than the inner diameter of the swing suction pipe 242. The cross section of the gas channel becomes larger instantly, and the air flow speed decreases. Most of the coal powder settles under the action of its own gravity and enters the discharger 254 below. Then, the small particles of coal powder that have not settled in the gravity dust collector 251 enter the cyclone dust collector 252 with the air flow for secondary sedimentation and enter the discharger 254 below, further separating the air and the small particles of coal powder, so that the dust content entering the bag dust collector is controlled within The airflow then passes through the bag filter 253, whose inner cavity is larger than that of the cyclone 252. The bag filter 253 is equipped with a filter element or screen. Fine coal dust particles that have not settled in the cyclone 252 are intercepted by the screen or element and then enter the discharger 254 below. After three stages of sedimentation, all coal dust particles are finally separated from the gas. Clean air is then discharged from the middle suction chamber 26 and can be directly discharged. The coal dust settled in the discharger 254 can be transported via the first conveyor belt 22 to the second conveyor belt 321 on the side suction vehicle 3.

[0044] The embodiment of the present application provides a specific structure of a side suction vehicle, such as Figure 4As shown, the side suction vehicle 3 includes a side suction vehicle frame 31, on which a front suction air chamber 33, a front suction dust removal chamber 34, a side suction operating chamber 35, a side suction working device 36, a rear suction dust removal chamber 37, and a rear suction air chamber 38 are sequentially arranged. The front suction air chamber 33 provides negative pressure for the side suction working device 36 and the front suction dust removal chamber 34, and the rear suction air chamber 38 provides negative pressure for the side suction working device 36 and the rear suction dust removal chamber 37. A rear driver's cab 39 is also provided at the rear end of the side suction vehicle 3.

[0045] Figure 11 A schematic diagram of the structure of a side suction working device of a tunnel roadbed coal powder cleaning vehicle provided in an embodiment of the present application is shown as follows: Figure 11 As shown, the side-suction working device 36 includes two side-suction sweeping assemblies 3610, symmetrically arranged along the tunnel track. These assemblies are connected to the side-suction vehicle frame 31 via a telescopic connecting arm 3611. A telescopic oil cylinder is provided between the telescopic connecting arm 3611 and the side-suction vehicle frame 31. A coal suction pipe 3612 is connected to the telescopic connecting arm 3611. The two side-suction sweeping assemblies 3610 extend in opposite directions via the telescopic connecting arm 3611. The upper portions of the side-suction sweeping assemblies 3610 are connected to both the front side-suction dust removal chamber 34 and the rear side-suction dust removal chamber 37 via the coal suction pipe 3612. By attaching the main body of the side-suction sweeping assemblies to the telescopic connecting arm, the operation and retraction of the side-suction sweeping assemblies can be controlled. In the figure, A1 shows the telescopic connecting arm controlling the side-suction sweeping assemblies to approach the center of the tunnel track, while A2 shows the telescopic connecting arm controlling the side-suction sweeping assemblies to move away from the center of the tunnel track.

[0046] Specifically, the front dust collection chamber 34 and the rear dust collection chamber 37 can have the same structure as the above-mentioned middle dust collection chamber 25. The front dust collection chamber 34 is connected to the front gravity dust collector, the front cyclone dust collector and the front bag dust collector in sequence; the front gravity dust collector, the front cyclone dust collector and the front bag dust collector are all provided with a front discharger below; the rear dust collection chamber 37 is connected to the rear gravity dust collector, the rear cyclone dust collector and the rear bag dust collector in sequence; the rear gravity dust collector, the rear cyclone dust collector and the rear bag dust collector are all provided with a rear discharger below; the front gravity dust collector and the rear gravity dust collector are connected to the coal suction pipe 3612, and the front bag dust collector and the rear bag dust collector are respectively connected to the front suction chamber 34 and the rear dust collection chamber 37. The front dust collector 34 and the rear dust collector 37 finally separate all the coal powder particles from the gas through a three-stage sedimentation method, and discharge clean air, which can be directly discharged. The third conveyor belt 322 and the fourth conveyor belt 323 are respectively set below the front discharger and the rear discharger.

[0047] There are two control positions in the side suction operation room 35. Two operators control the operating position of the side suction sweeping assembly through the telescopic cylinder in the side suction operation room 35, so as to control the side suction working device 36 to sweep the coal powder within the range of 1300 to 3600 mm from the center of the track on the tunnel road bed. The swept coal powder enters the front side suction dust removal chamber 34 and the rear side suction dust removal chamber 37 through the coal suction pipe for sedimentation, filtration and separation. Finally, the clean air is discharged through the front side suction air chamber 33 and the rear side suction air chamber 38. The second conveyor belt 321, the third conveyor belt 322 and the fourth conveyor belt 323 transfer the coal powder received on the first conveyor belt 22 and the coal powder collected on the side suction car 3 to the material car.

[0048] A total of 4 operators are required in the central suction operation room and the side suction operation room. All control instructions of the central suction working device and the side suction working device have been integrated into the operation room. The sweeping and suction work can be controlled by controlling the central suction working device and the side suction working device in the central suction operation room and the side suction operation room. The operators can complete the work indoors, which improves the intelligence and convenience of the operation. The structure is simple and the operation is easy. It reduces the labor intensity of the operators and simplifies the operation process to a certain extent.

[0049] The coal dust cleaning vehicle provided in the embodiments of the present application is used, with a power vehicle, a center suction vehicle, and a side suction vehicle arranged in sequence, to effectively remove and collect coal dust from the tunnel roadbed. The center suction vehicle and the side suction vehicle jointly perform sweeping and suction operations on the working surface. The center suction vehicle sweeps and collects coal dust within 2100mm from the center of the track on the tunnel roadbed, and the side suction vehicle sweeps and collects coal dust within 1300-3600mm from the center of the track on the tunnel roadbed. The coal dust is then transferred to the material vehicle for unified processing. The working surface covers a large area and can meet the coal dust cleaning needs of most operating lines. It can be applied to the cleaning of coal dust in tunnel roadbeds of various specifications, and can clean coal dust on rails, sleepers, and both sides of the rails. It can effectively solve the problems of dust caused by coal dust affecting the driver's vision and burying rails and sleepers, making it impossible to perform maintenance operations. At the same time, it avoids damage to the track caused by long-term cleaning of coal dust, increases the service life of the track, and ensures the safety of train operation.

[0050] Specifically, a fastener cleaning device can also be provided on the center suction vehicle and the side suction vehicle to perform additional cleaning on the tunnel roadbed. The fastener area can be selectively cleaned based on the on-site cleaning effect to achieve the purpose of fastener cleaning.

[0051] Specifically, spray dust removal devices are installed on the first conveyor belt 22, the second conveyor belt 321, the third conveyor belt 322, the fourth conveyor belt 323, the junction of the material vehicles, and the coal suction hoods of the central and side suction vehicles. Water mist prevents coal dust from rising, suppresses dust in the work area, and improves the explosion-proof performance of the coal dust cleaning vehicle. The spray dust removal device is also equipped with a purge element that can purge pipes to prevent freezing, blockage, and ruptures in pipes caused by low temperatures in winter.

[0052] The embodiment of the present application provides a specific structure of the power vehicle, such as Figure 2 As shown, the power vehicle frame 11 is equipped with a front driver's cab 12, engine number one, engine number two, a hydraulic system, a generator set 16, an air compressor system, an electrical system, a control system, and a cooling system 14. Engine number one and engine number two are located on either side of the hydraulic system, while the engine set and air compressor system are located at the rear end of the power vehicle frame. Engine number one serves as the front power system 13, while engine number two serves as the rear power system 15, providing power to the hydraulic system. The generator set 16 provides power to the entire vehicle.

[0053] The front cab 12 and various functional rooms feature a lightweight design while ensuring strength and rigidity. The front cab 14 is where the operator performs operations. The cab is equipped with a DDK-F / FB dust-proof electric air conditioning unit, combined with a top-mounted variable-section air duct design, effectively eliminating the risk of coal dust explosions during operation. The cab and various functional rooms are equipped with ZYC-180 pressurized dust removal and air purification units. Fresh air is filtered and drawn into the cab, ensuring greater indoor pressure than outside, preventing coal dust from entering the cab. This improves the reliability of the human-machine working environment.

[0054] The front and rear power systems 13 and 15 provide power for the pulverized coal cleaning vehicle. These systems transfer a portion of the power from the front and rear diesel engines via the transfer case to the travel pumps, which then convert this kinetic energy into hydraulic energy. This hydraulic energy is then transferred to the two first drive bogies 111 located below the power vehicle 1, driving the vehicle. The remaining power from the front and rear diesel engines is transferred via the transfer case to the working pumps, which convert this kinetic energy into hydraulic energy. This hydraulic energy is then transferred to the two second drive bogies 211 located below the center suction vehicle 2 and the two driven bogies 311 located below the side suction vehicle 3, driving the vehicle. The pulverized coal cleaning vehicle is a six-axle vehicle, with three sections hydraulically connected by six bogies. This ensures the balance and stability of the vehicle, which carries a wide range of equipment, ensuring efficient operation and meeting the requirements of vehicle coupling, high-speed operation, and operational travel. The front ends of the first driving bogie 111, the second driving bogie 211, and the driven bogie 311 are all equipped with stone sweepers. Specifically, each of the first driving bogie 111, the second driving bogie 211, and the driven bogie 311 is equipped with an axle end speed sensor, a shaft end grounding device, a shaft end bearing temperature sensor, and a gearbox temperature sensor. This allows for better monitoring of the bogie's operating status and prevents damage to the bogie caused by prolonged operation.

[0055] Specifically, both the front power system 13 and the rear power system 15 are provided with exhaust treatment systems with emission levels in line with EU Stage V, which effectively avoid the pollution of the environment by engine exhaust emissions.

[0056] The generator set 16 provides electricity for daily use, emergency pumps, operation, and air compressors for the entire coal dust cleaning vehicle. The generator set 16 adopts a side-to-top discharge method to effectively avoid thermal short circuits and backflows that cause overheating.

[0057] Since the power required for the movement and operation of the coal dust cleaning vehicle is relatively large, when it operates for a long time in a tunnel with poor ventilation, the excessive heat cannot be released, causing the ambient temperature to rise sharply. The power vehicle, as the main heat source, guides the heat through the heat dissipation system 14 to prevent heat accumulation and excessive rise in the local ambient temperature, thereby extending the continuous operation time of the entire machine and improving operating efficiency. Figure 12As shown, the heat dissipation system 14 is composed of a radiator 141, an axial flow fan and a top fan arranged on the top of the radiator. Part of the heat generated by the power transmission system is taken away by the circulating water in the pipeline 1415 of the radiator 141 in a heat conduction manner, and the other part of the heat is discharged by the pneumatic louver assembly driven by the top fan. The pneumatic louver assembly is arranged in an inverted V shape on the top of the radiator 141 and includes first and second louvers 1411 and 1412 with blade deflection angles of α and β arranged on the same side, and third and fourth louvers 1413 and 1414 with blade deflection angles of β and α arranged on the other side. The first and fourth louvers are diagonally distributed, and the second and third louvers are diagonally distributed. The blades of the pneumatic louver assembly are arranged at specific angles to ensure good rainproof performance. The axial flow fan arranged on one side of the radiator 141 can accelerate the circulation of air above and inside the power car 1 to achieve the effect of heat dissipation. Specifically, the blade deflection angle α and the blade deflection angle β are perpendicular or have a certain angle.

[0058] Specifically, the power car frame 11 is also provided with an electric control system and a hydraulic system.

[0059] The electric control system is used to control the operation and stop of the coal cleaning car. The electric control system is used for engine start-stop control, whole vehicle power supply configuration design, conveyor belt and throwing belt control, unloading system control, walking control, pneumatic and brake control, network system control, lighting system control, auxiliary system control, emergency system control, and control of the functions of the subsystems of the auxiliary equipment. The electric control system adopts PCL automatic control, sets distributed I / O sites, and is designed through a PROFINET redundant ring network to ensure the reliability and stability of the system.

[0060] The hydraulic system includes a walking pump hydraulic system, a walking motor hydraulic system, a fan drive motor hydraulic system, an oil cylinder and a first radiator hydraulic system, an oil cylinder and a second radiator hydraulic system, a rolling brush drive hydraulic system, a conveyor belt drive hydraulic system, an unloading valve drive hydraulic system, a fastener cleaning hydraulic system, a radiator drive and gear hanging hydraulic system, a circulating heating hydraulic system, a radiator and air compressor drive hydraulic system, an independent oil cooling circuit, an emergency drive circuit, etc. The pump end of the whole machine hydraulic system has high utilization rate, which can reduce cost and save certain installation space, and simplify the structure of the hydraulic system. The independent oil cooling circuit can keep the working oil temperature constant. The emergency drive circuit is integrated in the hydraulic system and is used to recover the working device when the main machine fails. The hydraulic oil tank is provided with an oil suction filter with a pollution indicator and an oil return filter to ensure the cleanliness of the hydraulic oil. All hydraulic pumps are protected by safety valves to prevent excessive pressure. High-precision control valves are used to ensure the accuracy and reliability of the hydraulic system operation.

[0061] Furthermore, a circulating heating system is provided in the hydraulic system, which improves the redundancy of the hydraulic system in normal operation in a low temperature environment by using a motor to drive the hydraulic pump for overflow heating.

[0062] Specifically, a braking and pneumatic system can also be provided on the power vehicle frame 11, which is mainly composed of three parts: an air source, a braking device and a pneumatic device, and can ensure the control requirements of the cleaning vehicle such as air supply, emergency braking and parking braking.

[0063] The tunnel roadbed coal powder cleaning vehicle provided in this application is safe, green and environmentally friendly. The explosion-proof design of the whole machine is comprehensive and reliable, and the exhaust gas purification degree is high, which effectively ensures the health and safety of the operating personnel.

[0064] Working principle:

[0065] According to the actual working conditions of the operation line, the center suction vehicle and the side suction vehicle are independently selected to clean the roadbed area. First, the coal powder on the roadbed surface is swept up by the center suction working device and the side suction working device. Then, the coal powder mixture is transported with the airflow to the center suction dust removal chamber, the front side suction dust removal chamber, and the rear side suction dust removal chamber. In the dust removal chamber, the coal powder is separated from the airflow through the three-stage dust removal effect of "gravity, multi-tube cyclone, and bag". The coal powder settled in the center suction dust removal chamber, the front side suction dust removal chamber, and the rear side suction dust removal chamber is dropped to the conveyor belt through the discharger, and then transported to the material vehicle by the first conveyor belt, the second conveyor belt, the third conveyor belt, and the fourth conveyor belt to complete the coal powder collection; after the airflow is filtered, the clean gas is discharged into the atmosphere through the center suction chamber, the front side suction chamber, and the rear suction chamber.

[0066] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0068] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0069] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0070] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A tunnel roadbed coal powder cleaning vehicle, characterized by: include: A power car (1), a center suction car (2) and a side suction car (3) connected in sequence via load-bearing connectors; The central suction vehicle (2) comprises a central suction vehicle frame (21), on which a central suction operating room (23), a central suction working device (24), a central suction dust removal room (25) and a central suction air intake room (26) are sequentially arranged; The central suction working device (24) comprises two central suction sweeping assemblies symmetrically arranged along the extension direction of the tunnel roadbed, and the central suction sweeping assemblies comprise a shell (241); The upper portion of the housing (241) is connected to one end of a swinging suction pipe (242), and the other end of the swinging suction pipe (242) is connected to the middle suction dust removal chamber (25); The middle suction air chamber (26) provides negative pressure for the middle suction working device (24) and the middle suction dust removal chamber (25); The power vehicle (1) comprises a power vehicle frame (11), a front driver's cab, a No. 1 engine, a No. 2 engine, a hydraulic system, a generator set, an air compressor system, an electrical system, and a control system. The No. 1 engine and the No. 2 engine are respectively arranged on both sides of the hydraulic system, and the engine set and the air compressor system are arranged at the rear end of the power vehicle frame; the No. 1 engine and the No. 2 engine provide power for the hydraulic system of the entire machine, and the generator set provides power for the entire machine; the side suction vehicle (3) comprises a side suction vehicle frame ( 31), a front suction air chamber (33), a front suction dust removal chamber (34), a side suction operating chamber (35), a side suction working device (36), a rear suction dust removal chamber (37) and a rear suction air chamber (38) are sequentially arranged on the side suction vehicle frame (31), the front suction air chamber (33) provides negative pressure for the side suction working device (36) and the front suction dust removal chamber (34), and the rear suction air chamber (38) provides negative pressure for the side suction working device (36) and the rear suction dust removal chamber (37).

2. The tunnel roadbed coal dust cleaning vehicle according to claim 1, characterized in that: The side suction working device (36) comprises two side suction sweeping and suction assemblies (3610) symmetrically arranged along the extension direction of the tunnel roadbed; The side suction sweeping assembly (3610) is connected to the side suction vehicle frame (31) via a telescopic connecting arm (3611), and a telescopic oil cylinder is provided between the telescopic connecting arm (3611) and the side suction vehicle frame (31); a coal suction pipe (3612) is connected to the telescopic connecting arm (3611); The upper portion of the side suction sweeping assembly (3610) is connected to both the front suction dust removal chamber (34) and the rear suction dust removal chamber (37) through the coal suction pipe (3612).

3. The tunnel roadbed coal dust cleaning vehicle according to claim 1, characterized in that: At least one rolling brush shaft is provided in the housing (241), and the rolling brush shaft is rotatably connected to the housing (241) via a bearing; bristles are provided on the outer wall of the rolling brush shaft.

4. The tunnel roadbed coal dust cleaning vehicle according to claim 1, characterized in that: At least one lifting assembly (243) is provided on each of the two housings (241); The lifting assembly (243) includes lifting rods (2431) respectively arranged on the two housings (241), and the outer walls of the lifting rods (2431) are each sleeved with a hollow guide rod (2432); The hollow guide rod (2432) is arranged on the center suction vehicle frame (21); The lifting rod (2431) and the hollow guide rod (2432) are connected via a lifting oil cylinder.

5. The tunnel roadbed coal dust cleaning vehicle according to claim 4, characterized in that: A transverse movement assembly (244) is provided between two lifting assemblies (243) which are provided on the two housings (241) and are symmetrically arranged along the extension direction of the tunnel bed; The transverse moving assembly (244) includes a transverse moving rod (2441) connected to a hollow guide rod (2432) of one lifting assembly (243); the outer wall of the transverse moving rod (2441) is provided with a hollow cross rod (2442); one end of the hollow cross rod (2442) away from the transverse moving rod (2441) is connected to the hollow guide rod (2432) of the other lifting assembly (243); The transverse rod (2441) and the hollow transverse rod (2442) are connected via a transverse oil cylinder.

6. The tunnel roadbed coal dust cleaning vehicle according to claim 1, characterized in that: The middle suction dust removal chamber (25) is provided with a gravity dust collector (251), a cyclone dust collector (252) and a bag dust collector (253) which are sequentially connected. The gravity dust collector (251) is connected to the swing suction pipe, and the bag dust collector (253) is connected to the middle suction chamber (26).

7. The tunnel roadbed coal dust cleaning vehicle according to claim 6, characterized in that: A discharger (254) is provided below the gravity dust collector (251), the cyclone dust collector (252) and the bag dust collector (253); a first conveyor belt (22) is provided below the central suction vehicle (2); The first conveyor belt (22) is arranged directly below the discharger (254).

8. The tunnel roadbed coal dust cleaning vehicle according to claim 1, characterized in that: Two first driving bogies (111) are provided below the power car (1), two second driving bogies (211) are provided below the center suction car (2), and two driven bogies (311) are provided below the side suction car (3); The front ends of the first driving bogie (111), the second driving bogie (211) and the driven bogie (311) are all provided with stone sweepers.

9. The tunnel roadbed coal dust cleaning vehicle according to claim 1, characterized in that: The power vehicle (1) further comprises a radiator, wherein the top of the radiator (141) is formed by an inverted V-shaped pneumatic shutter assembly; the pneumatic shutter assembly comprises a first shutter (1411) with a blade deflection angle of α and a second shutter (1412) with a blade deflection angle of β, both of which are arranged on the same side; a third shutter (1413) with a blade deflection angle of β and a fourth shutter (1414) with a blade deflection angle of α, both of which are arranged on the other side; wherein the first shutter (1411) and the fourth shutter (1414) are diagonally distributed, and the second shutter (1412) and the third shutter (1413) are diagonally distributed.

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