Tunnel ballast bed pulverized coal cleaning vehicle

Abstract

The embodiment of the invention 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 ballast 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 air turbulence formed will roll 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 line of sight. When the coal powder and coal blocks are deposited thickly, they will bury the rails, endangering the safety of train driving.

[0003] At present, for the coal powder and coal powder particles scattered inside and outside the railway track bed, manual operations are mostly used to clean up the coal scattered inside and outside the track bed, which is labor-intensive and inefficient. Some work vehicles that can complete the coal powder cleaning operation are also used, but there are problems such as incomplete coal powder collection and insufficient extension range of the working device. After the operation is completed, the operating personnel are still required to complete the final cleaning of the coal powder. It is urgent to design a coal powder cleaning equipment that can efficiently absorb coal, adapt to different track bed types, and clean up the coal powder conveniently and efficiently, reduce the labor intensity of people, and solve the problem of heavy labor and low efficiency of manual coal removal. Summary of the invention

[0004] In order to solve one of the above-mentioned technical defects, a tunnel roadbed coal powder cleaning vehicle is provided in an embodiment of the present application for effectively removing and collecting 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 through a load-bearing connection member;

[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 ballast bed, and the central suction sweeping and suction assemblies comprise a shell;

[0008] The upper part of the shell 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 whole machine, and the generator set provides power for the whole machine;

[0011] The side suction vehicle comprises a side suction vehicle frame, on which a front suction air chamber, a front suction dust removal chamber, a side suction operation 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] By adopting the coal dust cleaning vehicle provided in the embodiment of the present application, the coal dust in the tunnel ballast can be effectively removed and collected by arranging the power vehicle, the middle suction vehicle and the side suction vehicle in sequence. The middle suction vehicle and the side suction vehicle jointly perform sweeping and suction operations on the working surface. The middle suction vehicle sweeps and collects the coal dust within 2100mm from the center of the track on the tunnel ballast, and the side suction vehicle sweeps and collects the coal dust within 1300-3600mm from the center of the track on the tunnel ballast, and then transfers it to the material vehicle for unified treatment of the coal dust. 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 ballasts of various regulations, and the coal dust on the rails and sleepers and on both sides of the rails can be cleaned, which can effectively solve the problem that the dust caused by coal dust affects the driving line of sight, and the rails and sleepers are buried and cannot be repaired. At the same time, it avoids the damage to the track caused by long-term cleaning of coal dust, increases the service life of the track, and ensures the safe operation of the train. 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 ballast coal powder cleaning vehicle provided in an embodiment of the present application;

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

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

[0017] Figure 4 A schematic diagram of the structure of a side suction vehicle of a tunnel ballast coal powder cleaning vehicle provided in an embodiment of the present application;

[0018] Figure 5 A schematic diagram of the structure of a central suction working device of a tunnel ballast coal powder cleaning vehicle provided in an embodiment of the present application;

[0019] Figure 6 A schematic diagram of the structure of a central suction sweeping and suction assembly of a tunnel ballast coal powder cleaning vehicle provided in an embodiment of the present application;

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

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

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

[0023] Fig.10 A schematic diagram of the structure of a central suction dust removal chamber of a tunnel ballast coal powder cleaning vehicle provided in an embodiment of the present application;

[0024] Fig.11 A schematic diagram of the structure of a side suction working device of a tunnel ballast coal powder cleaning vehicle provided in an embodiment of the present application;

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

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

[0027] 2 is a center suction car, 21 is a center suction car frame, 22 is a first conveyor belt, 23 is a center suction operation room, 24 is a center suction working device, 25 is a center suction dust removal room, 26 is a center suction air 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 movement assembly, 251 is a gravity dust collector, 252 is a cyclone dust collector, 253 is a bag dust collector, 254 is a discharger, 2412 is a coal suction port, 2431 is a lifting rod, 2432 is a hollow guide rod, 2441 is a transverse movement rod, and 2442 is a hollow cross rod;

[0028] 3 is a side suction vehicle, 31 is a side suction vehicle frame, 33 is a front suction air chamber, 34 is a front suction dust removal chamber, 35 is a side suction operating room, 36 is a side suction working device, 37 is a rear suction dust removal chamber, 38 is a rear suction air chamber, 39 is a rear driver's room, 311 is a driven bogie, 321 is a second conveyor belt, 322 is a third conveyor belt, 323 is a fourth conveyor belt, 3610 is a side suction sweeping 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 more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of 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 realizing the present application, the inventors found that providing a coal powder cleaning vehicle that can be applied to cleaning coal powder in tunnel ballasts of various regulations and has good cleaning effect is an issue that urgently needs to be solved.

[0031] In response to the above problems, a tunnel roadbed coal powder cleaning vehicle is provided in an embodiment of the present application.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the coal powder cleaning vehicle includes: a power vehicle 1, a center suction vehicle 2 and a side suction vehicle 3 which are connected in sequence through load-bearing connectors. The power vehicle 1 includes a power vehicle frame 11, the center suction vehicle includes a center suction vehicle frame 21, and the side suction vehicle includes a side suction vehicle frame 31; the power vehicle frame 11, the center suction vehicle frame 21 and the side suction vehicle frame 31 are all lightweight structures combining an H-shaped main beam and a frame. The rear end of the power vehicle frame 11, the front end and rear end of the center suction vehicle frame 21 and the front end of the side suction vehicle frame 31 are all provided with a load-bearing interface, and the three carriages are lightly connected together through the load-bearing connector.

[0033] A first conveyor belt 22 is provided below the center suction car 2, and a second conveyor belt 321, a third conveyor belt 322 and a fourth conveyor belt 323 are provided below the side suction car 3; the fourth conveyor belt 323 includes a telescopic mechanism, and the end of the telescopic mechanism away from the side suction car 3 is connected to the material car through a detachable connector. The coal powder cleaned and settled on the first conveyor belt 22 by the center suction car 2 is transferred to the second conveyor belt 321; the third conveyor belt 322 receives the coal powder on the second conveyor belt 321 and the coal powder cleaned by the side suction car 3 and settles in the third conveyor belt 322, and the fourth conveyor belt 323 receives the coal powder on the third conveyor belt 322 and transfers it to the material car through the telescopic mechanism. The material car can recycle the cleaned coal powder, or a throwing belt can be provided at the rear of the material car to throw the coal powder to both sides away from the track.

[0034] Specifically, the detachable connecting part can be a snap connection, a magnetic connection or a bolt connection, which will not be described in detail here. When the material cart is not needed, the material cart is separated from the telescopic mechanism to ensure that the length does not exceed the limit when the cart is in the retracted state.

[0035] The embodiment of the present application provides a specific structure of the mid-suction vehicle, such as Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the central suction vehicle 2 includes a central suction vehicle frame 21, on which a central suction operation room 23, a central suction working device 24, a central suction dust removal chamber 25 and a central suction air suction chamber 26 are sequentially arranged. The central suction working device 24 includes two central suction sweeping and suction assemblies symmetrically arranged along the extension direction of the tunnel ballast, and the central suction sweeping and suction assemblies include a shell 241; the upper part of the shell 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 central suction dust removal chamber 25; the central suction air suction chamber 26 provides negative pressure for the central suction working device 24 and the central suction dust removal chamber 25.

[0036] Furthermore, two roller brush shafts are arranged in parallel in the housing 241, the roller brush shafts are connected to the output end of the driving motor, and the roller brush shafts are rotatably connected to the housing 241 through bearings; bristles are arranged on the outer wall of the roller brush shafts, and the bristles sweep up the coal powder on the tunnel roadbed. The central suction working device sweeps and sucks the coal powder on the tunnel roadbed within 2100mm from the center of the track, and the swept and sucked coal powder enters the central suction dust removal chamber through the swinging suction pipe for sedimentation treatment.

[0037] Specifically, a coal suction hood is provided between the two roller brush shafts, and 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, and the coal powder swept by the bristles enters the coal suction port through the coal suction hood, and then enters the middle 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, and a gap of a certain width is provided between the inner hood opening and the outer hood opening, through which the coal suction hood can be supplemented with air 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 has a certain angle with the vertical direction, so that the coal powder swept by the roller brush can enter the coal suction hood more easily.

[0038] Figure 8 This is a schematic diagram of another state of a central suction working device of a tunnel ballast coal powder cleaning vehicle provided in an embodiment of the present application. Fig. 9 Another state schematic diagram of a central suction sweeping and suction assembly of a tunnel ballast coal powder cleaning vehicle provided in an embodiment of the present application is shown in FIG. Figure 8 and Fig. 9 As shown, further, at least one lifting assembly 243 is provided on each of the two housings 241; the lifting assembly 243 includes lifting rods 2431 respectively provided on the two housings 241, and the outer walls of the lifting rods 2431 are sleeved with hollow guide rods 2432; the hollow guide rods 2432 are provided on the middle suction vehicle frame 21; the lifting rods 2431 and the hollow guide rods 2432 are connected by a lifting oil cylinder. The lifting assembly can be used to lift the housing, and then lift the middle suction sweeping assembly. When it is not needed, the middle suction sweeping assembly can be lifted to avoid damage to the bristles.

[0039] Specifically, two lifting assemblies 243 arranged on two shells 241 and symmetrically arranged along the extension direction of the tunnel roadbed are connected together through a transverse assembly 244; the transverse assembly 244 includes a transverse rod 2441 connected to a hollow guide rod 2432 of one of the lifting assemblies 243, and the outer wall of the transverse rod 2441 is sleeved with a hollow cross rod 2442, and the end of the hollow cross rod 2442 away from the transverse rod 2441 is connected to the hollow guide rod 2432 of the other lifting assembly 243. The transverse rod 2441 and the hollow cross rod 2442 are connected by a transverse oil cylinder. The distance between the two middle suction sweeping and suction assemblies symmetrically arranged on both sides of the tunnel roadbed can be adjusted through the transverse assembly, which can adapt to the cleaning work of tunnel roadbeds of different specifications and has strong applicability.

[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 central 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 central 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 central suction dust removal chamber 25 through negative pressure suction.

[0042] Fig.10 A schematic diagram of the structure of a middle suction dust removal chamber of a tunnel ballast coal powder cleaning vehicle provided in an embodiment of the present application is shown in FIG. Fig.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 arranged below the discharger 254. Specifically, a variable cross-section air duct is provided inside the ceiling of the middle suction air chamber 26, which can 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, the airflow speed decreases, and 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 airflow for secondary sedimentation and enter the discharger 254 below, further separating the air from 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, the inner cavity size of the bag filter 253 is larger than the inner cavity size of the cyclone filter 252, and the bag filter 253 is provided with a filter element or a filter screen. The fine coal powder particles that have not settled in the cyclone filter 252 are intercepted by the filter screen or the filter element and enter the discharger 254 below. After three-stage sedimentation, all coal powder particles are finally separated from the gas, and the clean air is discharged from the middle suction chamber 26, and the clean air can be discharged directly. The coal powder settled in the discharger 254 can be transported to the second conveyor belt 321 on the side suction vehicle 3 through the first conveyor belt 22.

[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 operation 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 arranged at the rear end of the side suction vehicle 3.

[0045] Fig.11 A schematic diagram of the structure of a side suction working device of a tunnel ballast coal powder cleaning vehicle provided in an embodiment of the present application is shown in FIG. Fig.11 As shown, the side suction working device 36 includes two side suction sweeping assemblies 3610 symmetrically arranged along the extension direction of the tunnel roadbed, and the side suction sweeping assemblies 3610 are connected to the side suction vehicle frame 31 through a telescopic connecting arm 3611; a telescopic oil cylinder is arranged 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; and the two side suction sweeping assemblies 3610 extend in opposite directions through the telescopic connecting arm 3611. The upper part of the side suction sweeping assemblies 3610 is connected to the front side suction dust removal chamber 34 and the rear side suction dust removal chamber 37 through the coal suction pipe 3612. The operation and retraction of the side suction sweeping assemblies can be controlled by arranging the body of the side suction sweeping assemblies on the telescopic connecting arm. In the figure, A1 is a state in which the telescopic connecting arm controls the side suction sweeping assemblies to be close to the track center of the tunnel roadbed, and A2 is a state in which the telescopic connecting arm controls the side suction sweeping assemblies to be away from the track center of the tunnel roadbed.

[0046] Specifically, the front suction dust removal chamber 34 and the rear suction dust removal chamber 37 can have the same structure as the above-mentioned middle suction dust removal chamber 25. The front suction dust collector 34 is connected with 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 suction dust collector 37 is connected with 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 with the coal suction pipe 3612, and the front bag dust collector and the rear bag dust collector are respectively connected with the front suction air chamber 34 and the rear suction dust removal chamber 37. The front side dust collector 34 and the rear side dust collector 37 finally separate all the coal powder particles from the gas through three-stage sedimentation, and discharge clean air, which can be directly discharged. The third conveyor belt 322 and the fourth conveyor belt 323 are respectively arranged 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 working position of the side suction sweeping and suction assembly in the side suction operation room 35 through the telescopic cylinder, so as to control the side suction working device 36 to sweep and suck the coal powder within the range of 1300 to 3600 mm from the center of the track on the tunnel roadbed. 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 treatment. 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 convey the coal powder received on the first conveyor belt 22 and the coal powder collected on the side suction vehicle 3 to the material vehicle.

[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 to operate. It reduces the labor intensity of the operators and simplifies the operation process to a certain extent.

[0049] By adopting the coal dust cleaning vehicle provided in the embodiment of the present application, the coal dust in the tunnel ballast can be effectively removed and collected by arranging the power vehicle, the middle suction vehicle and the side suction vehicle in sequence. The middle suction vehicle and the side suction vehicle jointly perform sweeping and suction operations on the working surface. The middle suction vehicle sweeps and collects the coal dust within 2100mm from the center of the track on the tunnel ballast, and the side suction vehicle sweeps and collects the coal dust within 1300-3600mm from the center of the track on the tunnel ballast, and then transfers it to the material vehicle for unified treatment of the coal dust. 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 ballasts of various regulations, and the coal dust on the rails and sleepers and on both sides of the rails can be cleaned, which can effectively solve the problem that the dust caused by coal dust affects the driving line of sight, and the rails and sleepers are buried and cannot be repaired. At the same time, it avoids the damage to the track caused by long-term cleaning of coal dust, increases the service life of the track, and ensures the safe operation of the train.

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

[0051] Specifically, spray dust removal devices are provided on the first conveyor belt 22, the second conveyor belt 321, the third conveyor belt 322, the fourth conveyor belt 323, the place where the material car is connected, and the coal suction hoods of the central suction car and the side suction car. Water mist is used to prevent coal dust from being raised, and dust is suppressed in the working area, thereby improving the explosion-proof performance of the coal dust cleaning car. The spray dust removal device is also provided with a purge component, which has a pipeline purge function, which can prevent the pipeline from freezing, blocking, bursting, etc. due to low temperature 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 provided with a front driver's cab 12, a No. 1 engine, a No. 2 engine, a hydraulic system, a generator set 16, an air compressor system, an electrical system, a control system, and a cooling system 14 in sequence. The No. 1 engine and the No. 2 engine are arranged on both sides of the hydraulic system, respectively, and the engine set and the air compressor system are arranged at the rear end of the power vehicle frame. The No. 1 engine is used as the front power system 13, and the No. 2 engine is used as the rear power system 15 to provide power for the hydraulic system of the whole machine, and the generator set 16 provides power for the whole machine.

[0053] The front cab 12 and each functional room are designed to be lightweight while ensuring strength and rigidity. The front cab 14 is for operators to operate in the front cab. The front cab is equipped with a DDK-F / FB dust-proof electric air-conditioning unit combined with the design structure of the top variable-section air duct, which can effectively eliminate the risk of coal powder explosion in the working conditions. The front cab and each functional room are equipped with a ZYC-180 boost dust removal device and an air purification device. Fresh air is sucked into the room after filtering to ensure that the indoor pressure is greater than the outdoor pressure to prevent coal powder from entering the cab. The reliability of the human-machine working environment is improved.

[0054] The front power system 13 and the rear power system 15 provide power for the coal dust cleaning vehicle, wherein the front power system 13 and the rear power system 15 transmit part of the power of the front diesel engine and the rear diesel engine from the transfer case to the running pump, and the running pump then converts the part of the kinetic energy into hydraulic energy, and finally the hydraulic energy is transmitted to the two first driving bogies 111 arranged under the power vehicle 1, so as to complete the running drive of the power vehicle 1. Another part of the power of the front diesel engine and the rear diesel engine is transmitted to the working pump by the transfer case, and the kinetic energy is converted into hydraulic energy by the working pump, and finally the hydraulic energy is transmitted to the two second driving bogies 211 arranged under the middle suction vehicle 2 and the two driven bogies 311 arranged under the side suction vehicle 3, so as to complete the running drive of the middle suction vehicle 2 and the side suction vehicle 3. The coal dust cleaning vehicle is a six-axle vehicle, and the three-section vehicle is connected together by six bogies by hydraulic drive, which can ensure the balance and stability of the coal dust cleaning vehicle carrying many equipment, so as to ensure the working effect and meet the requirements of vehicle coupling, high-speed operation and working running. 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. Specifically, the first driving bogie 111, the second driving bogie 211 and the driven bogie 311 are all provided with shaft end speed sensors, shaft end grounding devices, shaft end bearing temperature sensors and gear box temperature sensors. The operation status of the bogie can be better monitored to prevent damage to the bogie caused by long-term operation.

[0055] Specifically, both the front power system 13 and the rear power system 15 are provided with an exhaust gas treatment system with an emission level in compliance with EU Stage V, which effectively avoids the pollution of the environment by the engine exhaust emissions.

[0056] The generator set 16 provides the entire coal dust cleaning vehicle with electricity for life, emergency pumps, operation, and air compressors. The generator set 16 adopts a side-to-top discharge method to effectively avoid overheating caused by thermal short circuits and backflow.

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

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

[0059] The electronic control system is used to control the operation and stop of the coal powder cleaning vehicle. The electronic control system is used for engine start and stop control, vehicle power configuration design, conveyor belt and throwing belt control, unloading system control, travel control, pneumatic and braking control, network system control, lighting system control, auxiliary system control, emergency system control, and control of subsystem functions such as ancillary equipment. The electronic control system adopts PCL automatic control, sets distributed I / O stations, and uses PROFINET redundant ring network design to ensure system reliability and stability.

[0060] The hydraulic system includes the travel pump hydraulic system, travel motor hydraulic system, fan drive motor hydraulic system, cylinder and heat dissipation hydraulic system 1, cylinder and heat dissipation hydraulic system 2, roller brush drive hydraulic system, conveyor belt drive hydraulic system, unloading valve drive hydraulic system, fastener cleaning hydraulic system, radiator drive and gear hydraulic system, circulating heating hydraulic system, radiator and air compressor drive hydraulic system, independent oil cooling circuit, emergency drive circuit, etc. The pump end utilization rate of the whole machine hydraulic system is high, which can reduce costs and save a certain amount of 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 retract the operating device when the main engine fails. The hydraulic oil tank is equipped with an oil suction filter and a return oil filter with a contamination indicator 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 for normal operation in a low temperature environment by using a motor to drive a 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 car and the side suction car are 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, and then the coal powder mixture is transported to the center suction dust removal chamber, the front side suction dust removal chamber, and the rear side suction dust removal chamber with the airflow. 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 unloader, and then transported to the material car 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 to the atmosphere through the center suction air chamber, the front side suction air chamber, and the rear side suction air chamber.

[0066] In the description of the present 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0067] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0068] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0069] Although the preferred embodiments of the present application have been described, those skilled in the art may make other 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 falling within the scope of the present application.

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

Claims

1. A tunnel ballast coal powder cleaning vehicle, characterized in that: include: A power vehicle (1), a center suction vehicle (2) and a side suction vehicle (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 operation room (23), a central suction working device (24), a central suction dust removal room (25) and a central suction air suction room (26) are sequentially arranged; The central suction working device (24) comprises two central suction sweeping and suction assemblies symmetrically arranged along the extension direction of the tunnel ballast bed, and the central suction sweeping and suction assemblies comprise a shell (241); The upper portion of the shell (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 whole machine, and the generator set provides power for the whole machine; the side suction vehicle (3) comprises a side suction vehicle frame ( 31), the side suction vehicle frame (31) is provided with a front suction air chamber (33), a front suction dust removal chamber (34), a side suction operation chamber (35), a side suction working device (36), a rear suction dust removal chamber (37) and a rear suction air chamber (38) in sequence, the front suction air chamber (36) providing negative pressure for the side suction working device (36) and the front suction dust removal chamber (34), and the rear suction air chamber (38) providing negative pressure for the side suction working device (36) and the rear suction dust removal chamber (37).

2. The tunnel ballast 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 ballast bed; The side suction sweeping and suction 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); the telescopic connecting arm (3611) is connected to a coal suction pipe (3612); The top of the side suction sweeping and suction assembly (3610) is connected to both the front suction and dust removal chamber (34) and the rear suction and dust removal chamber (37) through the coal suction pipe (3612).

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

4. The tunnel ballast coal powder cleaning vehicle according to claim 1, characterized in that: At least one lifting assembly (243) is disposed on each of the two housings (241); The lifting assembly (243) comprises lifting rods (2431) respectively arranged on the two shells (241), and the outer walls of the lifting rods (2431) are sleeved with hollow guide rods (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 cylinder.

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

6. The tunnel ballast 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 connected in sequence; The gravity dust collector (251) is connected to the swing suction pipe, and the bag dust collector (253) is connected to the middle suction air chamber (26).

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

8. The tunnel ballast coal dust cleaning vehicle according to claim 1, characterized in that: Two first driving bogies (111) are arranged below the power car (1), two second driving bogies (211) are arranged below the center suction car (2), and two driven bogies (311) are arranged 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 ballast coal dust cleaning vehicle according to claim 1, characterized in that: The power vehicle (1) also includes a radiator, the top of the radiator (141) being composed of an inverted V-shaped pneumatic shutter assembly; the pneumatic shutter assembly comprising a first shutter (1411) with a blade deflection angle of α and a second shutter (1412) with a blade deflection angle of β, which are arranged on the same side, and a third shutter (1413) with a blade deflection angle of β and a fourth shutter (1414) with a blade deflection angle of α, which are arranged on the other side; wherein the first shutter (1411) and the fourth shutter (1414) are distributed diagonally, and the second shutter (1412) and the third shutter (1413) are distributed diagonally.

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