CN211621430U

CN211621430U - Coal car group is inhaled to full section railway roadbed in railway tunnel

Info

Publication number: CN211621430U
Application number: CN201921224392.4U
Authority: CN
Inventors: 刘飞香; 孙荣民; 罗德昭; 杨兵
Original assignee: CRCC High Tech Equipment Corp Ltd
Current assignee: CRCC High Tech Equipment Corp Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-10-02
Anticipated expiration: 2029-07-31

Abstract

The utility model provides a novel coal car group is inhaled to full section railway roadbed of railway, its includes that railway tunnel sleeper inner rail bed inhales coal car group and railway tunnel sleeper outer rail bed and inhales coal car group, railway tunnel sleeper inner rail bed inhales coal car group includes: the main suction vehicle and the material vehicle are sequentially connected; the main suction vehicle comprises a main suction vehicle frame (201), and the main suction vehicle frame (201) is installed on a third driving walking bogie (202) and a fourth driving walking bogie (207); a cabin (203), a main dust absorption and removal system (205) and a main air suction fan room (208) are arranged on a main suction vehicle frame (201). The railway tunnel full-section track bed coal suction car set can safely and efficiently clean full-section coal dust; it adopts gravity dust-removing, cyclone dust-removing and clothThree-stage dust removal by bag dust removal, the dust emission concentration is less than or equal to 30mg/m³。

Description

Coal car group is inhaled to full section railway roadbed in railway tunnel

Technical Field

The invention relates to a movable railway track bed coal suction vehicle set, in particular to a large-scale operation vehicle for absorbing dirt such as pulverized coal deposited on the surface of a full-section track bed in a railway tunnel, and belongs to the technical field of railway engineering equipment.

Background

In special coal transportation lines such as Shu, Shu Huang and Daqin, when a coal transportation train enters and exits a tunnel, due to the change of air flow, pulverized coal on the inner surface layer of a train carriage is rolled out of the carriage by the air flow and scattered on the surface of a ballast bed. The pulverized coal on the ballast bed is continuously accumulated, and the accumulated pulverized coal is thicker, so that the steel rail and the fastener can be buried when the accumulation is serious, and the safe operation of the train is seriously influenced; on the other hand, the line of sight of a driver is influenced, the line of sight is prevented from being observed and checked by staff, and the line of sight must be cleaned regularly.

In the past, the section with serious dust in the tunnel is mainly cleaned manually, but the mode has the disadvantages of high labor intensity, difficult transportation of cleaned coal dust, serious field dust pollution, severe environment and unprotected operation safety and health of personnel. The adoption of mechanized cleaning can reduce the number of operators, improve the cleaning efficiency and shorten the cleaning time.

The Chinese patent application with the publication number of CN105442488A discloses a novel railway tunnel track bed coal suction vehicle group, which is a track bed sewage suction vehicle for cleaning dirt such as coal dust deposited on the surface of a track bed in a tunnel. However, in the test running process of the track bed sewage suction truck, firstly, the influence of the working principle is found, the full-section cleaning cannot be carried out, or manual cleaning is needed, and the dependence on personnel cannot be reduced; secondly, the dust removal system does not adopt explosion-proof, explosion-proof and explosion-releasing measures, and inflammable and explosive coal powder is filled in the dust remover, so that the hidden danger of dust explosion exists; and thirdly, the dust removal system adopts gravity and a cyclone dust collector, so that the dust removal efficiency is low, a large amount of fine coal powder is discharged from a fan outlet and is dispersed in the semi-closed environment of the tunnel, and serious dust explosion hidden troubles exist. The difficult problem has been well known for a long time, is a great potential safety hazard for restricting the safe transportation of railways, and urgently needs to develop special equipment which is in line with the actual working characteristics on site and uses a mechanical operation mode to replace manual operation.

Disclosure of Invention

The invention aims to provide a novel railway full-section track bed coal suction car set which can safely and efficiently clean and collect pulverized coal of a full-section track bed and improve the railway transportation safety.

The invention discloses a novel railway full-section track bed coal suction vehicle set which comprises a railway tunnel sleeper inner track bed coal suction vehicle set and a railway tunnel sleeper outer track bed coal suction vehicle set.

Preferably, the coal suction car set for the railway tunnel sleeper inner track bed and the coal suction car set for the railway tunnel sleeper outer track bed are also connected with a material car.

In any of the above schemes, preferably, the coal suction car group for the railway tunnel sleeper inner track bed and the coal suction car group for the railway tunnel sleeper outer track bed are further connected with a power vehicle.

The railway tunnel sleeper inner track bed coal suction car group comprises: the main suction vehicle and the material vehicle are sequentially connected.

In another preferred embodiment, the track bed coal absorption vehicle group in the railway tunnel sleeper comprises a power vehicle, a main absorption vehicle and a material vehicle, wherein the power vehicle, the main absorption vehicle and the material vehicle are connected in sequence.

Preferably, the main suction vehicle comprises a main suction vehicle frame mounted on a third drive running bogie and a fourth drive running bogie. A cabin, a main dust absorption and removal system and a main suction fan chamber are arranged on the frame of the main suction fan; the lower part of the frame of the main suction vehicle is also provided with a main suction working device and a first conveying belt.

The main suction working device is arranged at the rear part of the third driving walking bogie and is connected with the main dust suction and removal system through a pipeline, and an explosion-proof valve is arranged in the pipeline to prevent pulverized coal explosion flame from overflowing to cause secondary explosion.

The main dust absorption and removal system comprises an air inlet pipeline, a gravity dust collector, a cyclone dust collector, a bag-type dust collector, a fan, an explosion-proof valve, an explosion-release valve and a discharger, wherein the gravity dust collector, the cyclone dust collector and the bag-type dust collector are sequentially arranged and connected end to end, so that the dust removal effect is improved; explosion venting valves are uniformly arranged at the upper parts of three dust collectors, namely a gravity dust collector, a cyclone dust collector and a bag-type dust collector, so that the overflow of pulverized coal explosion flame to cause secondary explosion is prevented; the fan is arranged in the main fan suction room, and the noise reduction treatment is performed in the main fan suction room through sound insulation, so that low noise is guaranteed when the fan runs, and the operation comfort is improved.

The fan passes through the intake stack and connects in gravity dust collector, cyclone, sack cleaner, ventilates for gravity dust collector, cyclone, sack cleaner to be convenient for the dust removal operation, main suction fan room upper portion wind channel all is equipped with the guide plate including wind channel flaring, the upper reaches and the low reaches of this wind channel flaring simultaneously, with the even wind channel export that distributes of faster wind speed, in order to reduce the export wind speed, guarantees that fan export wind speed is lower, prevents the secondary raise dust.

Gravity dust collector, cyclone, sack cleaner low reaches all set up the tripper, first conveyer belt sets up in main suction dust removal system lower part gravity dust collector, cyclone, the tripper below of sack cleaner, the coal dust of the main suction dust removal system separation of being convenient for falls into first conveyer belt, and transport through this first conveyer belt and inhale coal truck group rear portion, first conveyer belt end-to-end connection to skip, first conveyer belt includes sealing device, thereby seal the processing, prevent that coal dust from spilling over in first conveyer belt butt joint process and the transportation process, produce the raise dust.

The explosion-proof valve is arranged at the inlet and the outlet of the dust remover and is rapidly closed when the dust remover explodes, so that the explosion flame is prevented from overflowing to cause secondary explosion.

The gravity dust collector is connected with a first discharger below, the cyclone dust collector is connected with a second discharger below, and the bag-type dust collector is connected with a third discharger below.

Preferably, the length of the ventilation pipeline between the outlet of the rotary explosion isolating device and the gravity dust collector is not less than 1 meter.

The first discharger, the second discharger and the third discharger are star-shaped dischargers.

Preferably, conveyer belts are arranged below the first discharger, the second discharger and the third discharger and used for conveying the dirt to a designated place.

The gravity dust collector comprises a gravity dust collector upper box body, a first channel steel frame, a gravity dust collector ash bucket, a first discharger and a baffle; the box body is connected to the first channel steel frame, the gravity dust collector ash bucket is connected to the lower portion of the first channel steel frame, and the gravity dust collector ash bucket is a bucket with a large upper portion and a small lower portion.

The main suction fan chamber is designed to reduce the speed of the air channel, the air channel is designed to be an inlet, an outlet and an internal guide plate, clean air is discharged from the outlet of the fan after being separated by a dust removal system, but the air speed is high, the pulverized coal in the tunnel can be blown up to cause secondary dust raising by direct discharge, the hidden danger of pulverized coal explosion exists, the air channel is required to be manufactured to reduce the ultrahigh air speed, the outlet resistance cannot be increased, the load of the fan is influenced, through design and analysis, the ultrahigh air speed of the outlet of the fan can be reduced to 2m/s finally by the speed reduction air channel, the pulverized coal around the outlet of the air channel is ensured not to raise dust, the guide plate adopts a streamline structure, a plurality of groups of guide plates are arranged in the air channel along the air flow direction, the air flow at the outlet of the. Meanwhile, in order to prevent rainwater from entering, the outlet of the air duct is designed to be waterproof, the air duct is inclined downwards at a certain angle, for example, the axis of the air duct is located in the range of 10-20 degrees below the horizontal line, and rainwater is prevented from entering the fan.

The main suction fan chamber is designed to reduce noise, soundproof cotton and a reflecting plate are additionally arranged in the fan chamber, so that the noise of the fan is isolated in the fan chamber in the operation process, and the noise of the field tunnel operation is ensured to be comfortable.

The dust removing system adopts three-level dust removal of gravity dust removal, cyclone dust removal and cloth bag dust removal, and adopts antistatic measures, spark prevention and explosion suppression and explosion release devices. For example, 1, an antistatic flame-retardant cloth bag is adopted in the cloth bag dust remover, 2, all connecting parts of the dust removal system are connected by bonding wires, and the two measures can transmit static electricity generated in the operation process to the ground.

The cross section outside of motor vehicle, main car and the material car of inhaling all sets up intelligent spraying dust device to can effectively reduce the buggy raise dust.

The material vehicle frame is arranged on a first traveling bogie of the material vehicle and a second traveling bogie of the material vehicle; the storage box is positioned at the upper part of the material vehicle frame and is arranged in the middle of the front part and the rear part of the material vehicle frame, the second conveying belt is positioned at the front part of the storage box and comprises a driving device, so that the second conveying belt can stretch back and forth; when the operation is finished, the second conveying belt is shortened to the operation position when the operation is carried out on a steel rail, and the material vehicle is connected with the main suction vehicle by the front-end vehicle coupler; the polishing belt is arranged at the rear end of the frame of the material vehicle through a rotary support; sealing the top of the throwing belt to prevent coal dust from overflowing in the butt joint process and the conveying process of the throwing belt to generate raise dust; meanwhile, the belt throwing has an automatic material storage function, is more intelligent and accurate in material storage, and simultaneously reduces the workload of operators, a material level sensor is arranged at the blanking position of the material storage bin, when the blanking is accumulated to a certain height, the material level sensor obtains a signal and feeds the signal back to a material vehicle main machine, and the main machine drives the main conveying belt to move forward to automatically push and feed the next section of material.

The main suction working device is mainly responsible for the coal suction operation in the length direction of the sleeper, namely the transverse 2600mm range. The main suction working device comprises a working trolley.

The first conveying belt comprises two horizontal sections and an additional inclined section, the first horizontal section can guarantee that the discharge opening of the dust removal system discharges materials completely, the included angle between the surface of the inclined section and the horizontal plane is 20-22 degrees, and the surface gradient of the inclined section is smaller than the coal powder repose angle.

The front part of the main suction vehicle is provided with a cabin which is divided into two parts, namely a rest room at the front part and a maintenance room at the back part. The rest room provides a comfortable environment to ensure the rest of the operators and refers to the data; the inside of the overhaul room is provided with a clamp table and a tool box, so that certain overhaul and maintenance capacity is ensured

The coal suction vehicle group for the railway tunnel sleeper outer track bed comprises a side suction vehicle and a material vehicle.

The side suction vehicle is specially designed, namely: 1. all parts of the whole machine are reasonably distributed according to the weight and the gravity center, so that the front and back weight distribution of the whole machine is balanced, the gravity center is lower, and the dynamic stability of the whole machine is ensured; 2. the overall length, the center disc distance and the end length of the whole machine are optimally designed, so that the trafficability characteristic of the minimum curve of the railway is met; 3. the whole machine aims at the fan room with the largest noise, and sound insulation cotton and a reflecting plate are added in the machine, so that the noise is reduced, and the comfort is improved; ensuring the axle weight, the gravity center, the length, the noise reduction and the comfort.

The side-suction vehicle frame is arranged on the third driving walking bogie and the fourth driving walking bogie; the side-draught vehicle frame is in a shape like a Chinese character 'ji', and the operation cab is positioned below the middle part of the shape like the Chinese character 'ji' of the side-draught vehicle frame; the side suction working device is arranged at least one set and is positioned at the right-angle part of the operating cab, the side suction working device is connected with a side suction vehicle frame through a rotary supporting turntable, the side suction working device and the rotary supporting turntable are fixed through a worm gear, and a hydraulic motor drives the worm gear to rotate through a worm so that the mechanical arm swings out and in along the rotary axis;

the side suction working device is connected to a side suction dust removal system through a suction pipe and comprises a sweeping and sucking device, the upper part of the sweeping and sucking device is connected to a rotary supporting box body, the rotary supporting box body is connected with the suction pipe, a rotary supporting driving motor is further arranged on the rotary supporting box body, the rotary supporting driving motor is used for driving the rotary supporting box body to rotate to a required operation position, a side suction device cover body is further connected to the lower part of the rotary supporting box body, a motor is arranged above the side suction device cover body, a rolling brush is arranged below the side suction device cover body, the motor provides power for the rolling brush, the upper part of the rotary supporting box body is communicated with the suction pipe, the lower part of the rotary supporting box body is communicated with the inner wall of the side suction device cover body, and a side suction port is arranged in the side suction device cover body so as to facilitate dust on the surface below the side suction device cover body, Sundries and the like are sucked into the side suction port and then enter the dust removal system through the rotary supporting box body and the suction pipe.

The suction tube pipe clamp is installed on the outer side of the suction tube and used for fixing the suction tube on the mechanical arm, and the suction tube pipe clamp is a two-half-circle-shaped sheet metal part and fixed on the mechanical arm through bolts.

The suction pipe is attached to the outer side of the mechanical arm, so that the angle of the suction pipe can be changed conveniently.

And a motor driving rolling brush connecting device is arranged on the outer side of the side suction device cover body, one end of the motor driving rolling brush connecting device is connected to an output shaft of the motor, and the other end of the motor driving rolling brush connecting device is connected to a central shaft of the rolling brush so as to transmit the power of the motor to the rolling brush.

The suction pipe is connected with the sweeping and sucking device through a slewing bearing

And a rotary supporting rotary table is arranged below the suction pipe.

The rotary supporting rotary table is used for supporting the suction pipe so that the suction pipe can rotate to a position to be operated by taking the rotary supporting rotary table as an axis.

The discharge port of the dust removal system is connected with a conveying device so as to convey the collected dust to a designated place.

The mechanical arm comprises four hinge points.

Preferably, the first side dust suction and removal system, the first side suction fan chamber, the second side dust suction and removal system and the second side suction fan chamber are symmetrically arranged at the front side and the rear side of the operating cab;

preferably, the four sets of side-suction working devices are combined front and back in pairs and connected with the first side dust suction and removal system and the second side dust suction and removal system through pipelines, and the tail ends of the pipelines are uniformly provided with explosion-proof valves to prevent pulverized coal explosion flames from overflowing to cause secondary explosion.

The first side dust absorbing and removing system and the second side dust absorbing and removing system are identical in structure and respectively comprise an air inlet pipeline, a gravity dust collector, a cyclone dust collector, a bag-type dust collector, a fan, a flame-proof valve, a explosion release valve and a discharger, the downstream of the air inlet pipeline is sequentially connected with the gravity dust collector, the cyclone dust collector and the bag-type dust collector, the fan is arranged between the gravity dust collector and the cyclone dust collector, the fan is also arranged between the cyclone dust collector and the bag-type dust collector, the fan is also arranged at the downstream of the bag-type dust collector, the explosion release valve is arranged on the upper portions of the three dust collectors, pulverized coal explosion flame overflow is prevented, secondary explosion is caused, the discharger is arranged on the lower portions of the three dust collectors, materials after dust collection are discharged, the flame-proof valve is arranged at the inlet and the outlet of the dust collectors, the flame-proof valve is.

The starting point of an air duct inlet at the top of a front and rear fan chamber of a side-draft fan of a coal-absorbing vehicle set outside a railway tunnel sleeper is a fan outlet, the axis of the air duct inlet is perpendicular to the axis of the fan outlet, at least one group of inclined planes and at least one group of horizontal planes are arranged between the air duct inlet and the air duct outlet, the at least one group of inclined planes and the at least one group of horizontal planes are in seamless connection, and the at least one group of inclined planes and the at least one group of horizontal planes are also in seamless connection with the.

Preferably, at least one group of longitudinal partition plates are further arranged in the air duct formed by the at least one group of inclined surfaces and the at least one group of horizontal surfaces, and at least one group of folded plates are further arranged on the upper surface or the lower surface of the at least one group of inclined surfaces and the at least one group of horizontal surfaces, so that the aim of reducing the wind speed is fulfilled.

The air duct formed by the at least one group of inclined surfaces and the at least one group of horizontal surfaces has good deceleration effect on the air flow.

Through the speed reduction design, the ultrahigh wind speed entering the outlet of the fan is finally reduced to 2m/s after passing through the air duct, and the pulverized coal dust around the outlet of the air duct is prevented. Meanwhile, the fan chamber is subjected to noise reduction design, soundproof cotton and a reflecting plate are additionally arranged inside the fan chamber, so that the noise of the fan is isolated inside the fan chamber in the operation process, and the noise of field tunnel operation is ensured to be comfortable.

The first conveying belt is transversely arranged at the lower parts of the first side dust absorption and removal system and the second side dust absorption and removal system in the middle, and the first conveying belt conveys the separated coal dust to the rear part of the railway tunnel sleeper outer track bed coal absorption vehicle group; all the conveying belts are sealed, so that coal dust is prevented from overflowing in the butt joint process and the conveying process of all the conveying belts, and flying dust is prevented from being generated;

the rear cab is positioned on the frame of the side suction fan and is positioned at the rear part of the second side suction fan chamber; fans are arranged in the first side fan suction chamber and the second side fan suction chamber, and sound insulation and noise reduction treatment is carried out on the inner parts of the first side fan suction chamber and the second side fan suction chamber, so that low noise is ensured when the fans operate, and the operation comfort is improved;

meanwhile, the air ducts at the upper parts of the first side suction fan chamber and the second side suction fan chamber are designed to reduce the air speed, so that the air speed at the outlet of the fan is ensured to be lower, and secondary dust raising is prevented.

The dust removal system adopts three-level dust removal of gravity dust removal, cyclone dust removal and cloth bag dust removal, and adopts a novel dust removal system with static resistance, spark prevention and explosion suppression and explosion release devices.

The intelligent spraying dust-settling technology can effectively reduce the dust flying of the coal powder.

The whole machine adopts a plurality of coal dust explosion-proof, explosion-proof and explosion-relief technical measures, and ensures that the novel railway ballast bed coal suction vehicle group can safely and efficiently clean coal dust.

The invention discloses a key innovation point of the technical scheme of the railway tunnel full-section track bed coal suction car set, which comprises the following steps:

1) the technical scheme relates to a novel railway full-section track bed coal suction vehicle group, and when a main suction vehicle and a side suction vehicle operate simultaneously, the whole machine can clean and collect coal dust within a range of 3.6 meters (covering a track bed with a width of 7.2 meters) from the center of a track bed full-section distance.

2) In the technical scheme, the main suction working device and the side suction working device adopt a dust collection mode combining double-roller brush cleaning with large air quantity and large negative pressure, so that the efficiency is ensured, and explosive pulverized coal dust is prevented from flying.

3) In the technical scheme, the dust removal system adopts three-stage dust removal of gravity dust removal, cyclone dust removal and cloth bag dust removal, and the dust emission concentration is less than or equal to 30mg/m³。

4) In the technical scheme, the dust removal system adopts a novel dust removal system with static resistance, spark resistance and explosion suppression and explosion release devices.

5) In the technical scheme, an intelligent spraying dust-settling technology is adopted at the positions of main working devices such as a main suction working device, a side suction working device and a coal powder conveying system, the concentration of coal powder is detected in real time in the operation process, and the spraying dust-settling device is automatically started to perform dust-settling treatment when the concentration exceeds the standard.

6) In the technical scheme, the coal suction cover opening of the working device can be self-adaptive to the height of the coal bed, and automation of the operation process is realized. The coal bed height detection is designed and is linked with the executing mechanism, self-adaptive coal bed height operation is realized, and the safety of personnel and equipment in a tunnel operation environment is ensured.

7) In the technical scheme, due to the fact that a tunnel space is narrow and small, ventilation is not smooth, and human casualty accidents are easily caused by accumulation of tail gas of an engine, an engine and accessories meeting the Terr 4F emission standard are specially customized during design.

8) In the technical scheme, the length of the whole machine reaches 81 meters, the total weight is about 256 tons, and the high-efficiency and accurate multi-shaft synchronous gear engaging technology ensures that 8 shafts are driven synchronously.

9) According to the technical scheme, the pulverized coal collected in the operation process is continuously accumulated in the material vehicle, and along with the application of the intelligent control technology, the automatic detection device and the working mechanism are linked in the material vehicle, so that the electromechanical integration is perfectly combined, the pulverized coal is automatically conveyed and stored continuously when being accumulated to a set height, the labor intensity can be reduced, and the operation efficiency and the safety are guaranteed.

10) In the technical scheme, the vehicle adopts a field bus network control system consisting of an industrial upper industrial personal computer, an Ethernet switch, a PLC (logic controller), a Profinet, a remote I/O (input/output) and the like. The control system has high automation degree and high integration level; the method has higher innovation in various aspects such as man-machine interaction, man-machine engineering and the like; integrating remote maintenance and diagnosis functions; the digital platform provides more convenience and possibility for later improvement or platform management.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a full-section track bed coal absorption vehicle set of a railway tunnel according to the invention;

fig. 2 is a schematic structural view of the vehicle 1 of the embodiment shown in fig. 1;

FIG. 3 is a schematic structural view of the main suction vehicle 2 of the embodiment shown in FIG. 1;

FIG. 4 is a schematic structural view of the side suction vehicle 3 of the embodiment shown in FIG. 1;

fig. 5 is a schematic structural view of the material cart 4 of the embodiment shown in fig. 1;

FIG. 6 is a schematic structural diagram of a main suction device of a coal car for a railroad track bed according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a side-suction working device of a coal-suction vehicle for a railway track bed according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a main dust suction and removal system of a coal car for a railway track bed according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a side-draft dust removal system of a coal-absorption car for a railroad track bed according to an embodiment of the present invention;

FIG. 10 is a front view of the side suction device shown in FIG. 7;

FIG. 11 is a schematic view of a roller brush structure of the side suction device shown in FIG. 7;

the numerical designations in fig. 1-9 represent:

1 power vehicle 2 side suction vehicle 3 material vehicle 4 steel rail 5 coupler 6 is connected with drawbar 7 steel rail 101 power vehicle frame 102 front cab 103 first driving walking bogie 104 hand brake 105 power room 106 diesel tank 107 second driving walking bogie 201 main suction vehicle frame 202 third driving walking bogie 203 cabin 204 main suction working device 205 main suction dust removing system 206 first conveyer belt 207 fourth driving walking bogie 208 main suction fan cabin 301 side suction vehicle frame 302 third driving walking bogie 303 oil tank 304 first side suction fan cabin 305 first side suction dust removing system 306 first conveyer belt 307 operating cab 308 side suction working device 309 second side suction dust removing system 310 second side suction fan cabin 311 fourth driving walking bogie 312 rear cab 401 first walking bogie 403 storage tank 404 material vehicle second walking bogie 405 material vehicle frame 406 throw Belt 3801 swing support turntable 3802 arm II 3803 arm III 3804 hydraulic ram IV3805 arm V3806 suction tube clamp VI 7 suction tube clamp VII 3808 suction tube clamp IX 3810 swing support 3811 hydraulic ram I3812 hydraulic ram II 3814 swing suction device 3815 cylinder support hinge V3816 cylinder support hinge VI 3817 arm VII 3825 roller brush 3826 motor 3827 swing support housing 3829 side suction device housing 3830 swing support drive motor 3831 motor drive roller brush attachment 3832 side suction port.

Detailed Description

The invention is further illustrated by the following figures and examples.

As shown in fig. 1, the invention is composed of a power car 1, a main suction car 2, a side suction car 3 and a material car 4 which are connected by a coupler 5 and a connecting draw bar 6 to form an operation car group; the first driving walking bogie 103, the second driving walking bogie 107, the third driving walking bogie 202, the fourth driving walking bogie 207, the fifth driven walking bogie 302, the sixth driven walking bogie 311, the first material vehicle walking bogie 402 and the second material vehicle walking bogie 404 run on the steel rail 7.

As shown in fig. 2, the vehicle frame 101 is mounted on a first drive running bogie 103 and a second drive running bogie 107; a front cab 102 is fixed at the front end of the frame 101 of the power vehicle; the power compartment 105 is positioned at the rear part of the front cab 102, and the hand brake 104 is positioned at the front part of the power compartment 105 and arranged in the middle; a double engine, a hydraulic system and a generator set are arranged in the power room; the diesel tank 106 is arranged at the lower part of the frame;

as shown in fig. 3, the main vehicle frame 201 is mounted on a third drive running bogie 202 and a fourth drive running bogie 207; the cabin 203, the main dust absorption and removal system 205 and the main air suction fan chamber 208 are arranged on the main suction vehicle frame 201 from front to back; the main suction working device 204 and the conveying belt 1206 are arranged below the main suction vehicle frame 201; the main suction working device 204 is arranged at the rear part of the third driving walking bogie 202, is connected with the main suction vehicle frame 201 by a top single traction rod and pulls the main suction working trolley to move forward or backward; the main suction working device 204 is connected with the main suction dust removal system 205 through a pipeline, and an explosion-proof valve is arranged in the pipeline to prevent pulverized coal explosion flame from overflowing to cause secondary explosion; the main dust absorption and removal system 205 consists of an air inlet pipeline, a gravity dust collector, a cyclone dust collector, a bag dust collector, a fan, an explosion-proof valve and a discharger, wherein the explosion-proof valve is arranged at the upper parts of the three dust collectors, so that the overflow of pulverized coal explosion flame is prevented to cause secondary explosion; the fan is arranged in the main suction fan chamber 208, and sound insulation and noise reduction treatment is performed in the fan chamber 208, so that low noise is ensured when the fan operates, and the operation comfort is improved; meanwhile, the air duct on the upper part of the fan chamber 208 is designed to reduce the air speed, so that the air speed at the outlet of the fan is ensured to be lower, and secondary dust is prevented; conveyer belt 1206 and main dust collecting and removing system 205 sub-unit connection, transport the coal dust of separation to inhaling coal truck group rear portion, and the conveyer belt carries out sealing process, prevents that the conveyer belt butt joint process from spilling over with the coal dust in the transportation, producing the raise dust.

As shown in fig. 4, the side-suction frame 301 is mounted on the fifth driven running bogie 302 and the sixth driven running bogie 311; the side-draught vehicle frame 301 is in a shape of a Chinese character 'ji', and the operation cab 307 is positioned in the middle of the Chinese character 'ji' of the side-draught vehicle frame 301; the side suction working devices 308 are 4 sets in total, are positioned at four corners of the operating cab 307 and are connected with the side suction vehicle frame 301 through a rotary supporting turntable, the side suction working devices 308 are fixed with a worm gear of the rotary supporting turntable, and a hydraulic motor drives the worm gear to rotate through a worm so that the mechanical arm swings out and in along a rotation axis; the first side dust absorption and removal system 305, the first side suction fan room 304, the second side dust absorption and removal system 309 and the second side suction fan room 310 are symmetrically arranged at the front side and the rear side of the operation cab 307; the four sets of side suction working devices 308 are combined front and back two by two and connected with the first side dust suction and removal system 305 and the second side dust suction and removal system 309 through pipelines, and the tail ends of the pipelines are provided with explosion-proof valves to prevent pulverized coal explosion flames from overflowing to cause secondary explosion.

The first side dust absorption and removal system 305 and the second side dust absorption and removal system 309 are identical in structure and are composed of an air inlet pipeline, a gravity dust collector, a cyclone dust collector, a bag-type dust collector, a fan, an explosion-proof valve and a discharger, and the explosion-proof valve is arranged at the upper parts of the three dust collectors to prevent pulverized coal explosion flame from overflowing to cause secondary explosion; the first conveyer belt 306 is positioned at the lower parts of the first side dust absorption and removal system 305 and the second side dust absorption and removal system 309, is arranged in the middle from left to right, and conveys the separated coal dust to the rear part of the coal absorption car group; the conveyer belt is located inside first side suction fan room 304, and side suction car frame 301 upper portion is arranged in the centre about, and its front portion is connected with the conveyer belt rear portion, and its rear portion is connected with first conveyer belt 306 front portion, guarantees that the material is carried smoothly, and each conveyer belt all carries out sealing process, prevents that the conveyer belt butt joint process from spilling over with the transportation in-process coal dust, produces the raise dust.

The rear cab 312 is positioned on the side suction frame 301 and at the rear part of the second side suction fan chamber 310; the fans are arranged in the first side suction fan chamber 304 and the second side suction fan chamber 310, sound insulation and noise reduction are performed in the fan chambers, low noise is guaranteed when the fans operate, and operation comfort is improved; meanwhile, the air duct on the upper part of the fan chamber is designed to reduce the air speed, so that the air speed at the outlet of the fan is ensured to be lower, and secondary dust raising is prevented.

Meanwhile, the air ducts at the upper parts of the first side suction fan chamber 304 and the second side suction fan chamber 310 are designed to reduce the air speed, so that the air speed at the outlet of the fan is ensured to be low, and secondary dust raising is prevented. The clean air separated by the dust removal system is discharged from the outlet of the fan, but the air speed is high, the direct discharge can blow up the coal dust in the tunnel to cause secondary dust raising, the hidden danger of coal dust explosion exists, therefore, the air duct needs to be manufactured to reduce the ultrahigh air speed, the outlet resistance cannot be increased, and the fan load is influenced. Simultaneously for preventing the rainwater from pouring into, the wind channel export carries out waterproof design, promptly: the air duct inclines downwards at a certain angle to ensure that rainwater does not enter the fan.

As shown in fig. 5, the material cart frame 405 is mounted on the material cart first travel bogie 402 and the material cart second travel bogie 404; the storage box 403 is positioned at the upper part of the material trolley frame 405 and is arranged in the front-back center, the second conveying belt 401 is positioned at the front part of the storage box 403, and the second conveying belt 401 can stretch back and forth; the first conveying belt 306 is extended to receive coal dust during operation and conveyed into the storage box 403, and the first conveying belt is shortened to an operation position during operation to ensure the connection of front-end couplers; the throwing belt 406 is arranged at the rear end of the material vehicle frame 405 through a rotary support; the top of the throwing belt 406 is sealed, so that coal dust is prevented from overflowing in the butt joint process and the conveying process of the conveying belt to generate raised dust; meanwhile, the automatic storage function is achieved, the intelligent storage device is more intelligent, the storage is more accurate, and the workload of operators is reduced.

The main suction working device is mainly responsible for the coal suction operation of the surface of the track bed on the inner side of the sleeper within the range of 2600mm of the sleeper. The main suction working device adopts a sweeping and sucking mechanism with double rolling brushes, the double rolling brushes lift coal dust on the sleeper surface, then the coal dust is collected and sucked through a coal suction cover opening, and the coal dust enters a dust removal system through a conveying pipeline to be separated.

The side suction working device can clean coal of the tunnel wall outside the sleeper and the area between the sleeper and the railway in the range from 2600mm to 7200mm of the railway bed surface, and mainly completes coal removal operation from the outer side of the sleeper to the ballast blocking wall, the top surface of the drainage ditch and the area from the outer side of the sleeper to the center line of the double-track. Raise the dust through two round brushes gyration in opposite directions, make the dust send into in the suction cover mouth, dust pelletizing system is sent into with the dust to the suction cover mouth, and dust pelletizing system will subside, filter the back to the dust, discharges to the conveyer belt through the doffer, and the conveyer belt is carried the material to the skip in again, thereby has thereby to realize the clean operation of circuit sleeper outside buggy.

Adopt intelligent spraying dust fall technique at main equipment positions such as main equipment, the side-inhale equipment and buggy conveying system of inhaling, real-time detection buggy concentration in the operation process, automatic start spraying dust collector carries out the dust fall and handles when concentration exceeds standard, is less than the dust concentration of injecing, and spraying dust collector stop work guarantees intelligent operation.

The working mode of the novel coal suction vehicle group for the railway tunnel ballast bed in the embodiment is as follows: the main suction working device: during operation, the power vehicle provides power to control the locking cylinder to unlock, the lifting oil cylinder is controlled to drop the main suction working device on the rail surface, the rolling brush lifting oil cylinder is controlled to drop the rolling brush to the operation position, and coal suction work is performed after parameters are adjusted. Side suction working device: during operation, the power vehicle provides power to control the rotary support turntable motor to rotate the side suction working device to a preset angle, and the plurality of oil cylinders are operated to enable the side suction working device to reach a working position. The motor drives the main suction fan, the side suction fan, the rolling brush in the working device, the first conveying belt, the second conveying belt and the material loading and transporting device to rotate, so that the dirt absorption operation is carried out on the coal dust in the range of 7.2 meters of the ballast bed. The whole vehicle is driven to move forward at a set speed, and the dirt suction operation is started on the full section of the surface of the ballast bed. The sucked dirt is filtered by the dust removal system and then settled down, and then the dirt is conveyed to a material vehicle connected with the material vehicle by the material conveying system.

In any of the above solutions, it is preferred to treat different particles simultaneously with three types of dust collectors, because of the high emission requirements of the operation in the tunnel. The gravity dust collector mainly settles large particles (including a small amount of ballast), and the cyclone dust collector mainly settles medium particles; the bag-type dust collector mainly settles fine particles, ensures the discharge concentration and avoids polluting the tunnel operation environment. Aiming at explosive coal dust as a treatment object, different spark and static prevention designs are adopted on various dust collectors.

In any scheme, the preferable anti-static design that the connecting parts of all parts of the whole machine are all provided with the grounding conducting wires reduces static accumulation to a certain extent, prevents the static accumulation from generating sparks and detonating coal dust.

In any of the above schemes, the preferable is a multi-shaft synchronous gear engaging technology which is efficient and accurate due to the fact that the length of the whole machine reaches 81 meters and the total weight is about 256 tons, and 8-shaft synchronous driving is guaranteed. If not synchronized, will cause severe power losses and even early damage to the drive components. The system adopts two sets of completely same power transmission systems and hydraulic traveling driving systems, and the two sets of systems can work independently and can also work cooperatively. The sensor monitors the running condition of the whole vehicle and the working state of the hydraulic system in real time, feeds back signals to the electric system in real time, and ensures the synchronism of multi-axis driving of the walking hydraulic system through accurate control.

As shown in fig. 10-11, the side suction operation device 308 is connected to the dust removing device, the side suction operation device 308 includes a rotary supporting turntable 3801, the rotary supporting turntable 3801 is fixedly mounted on the frame of the vehicle, and the rotary supporting turntable 3801 is provided with a rotary motor, and the rotary supporting turntable 3801 rotates around its own vertical axis under the power of the rotary motor; a mechanical arm II 3802 is installed on the rotary supporting turntable 3801, the tail end of the mechanical arm II 3802 is hinged with one end of a mechanical arm III 3803, the other end of the mechanical arm III 3803 is hinged with the head end of a mechanical arm V3805, and the tail end of the mechanical arm V3805 is hinged with a mechanical arm VII 3817; the rotary supporting turntable 3801 is also connected with a suction pipe 3808, the suction pipe 3808 is respectively connected with the mechanical arm III 3803, the mechanical arm V3805 and the mechanical arm VII3817 through a suction pipe clamp VI3806, a suction pipe clamp VII 3807 and a suction pipe clamp IX 3809, one end of the suction pipe 3808 is connected with a sweeping and sucking device 3814 through a rotary support 3810, and the other end of the suction pipe 3808 is connected with a dedusting device.

A cylinder support hinge VI 3816 is further connected between the mechanical arm III 3803 and the mechanical arm V3805, and a cylinder support hinge V3815 is included between the mechanical arm V3805 and the mechanical arm VII 3817.

The cylinder support hinge VI 3816 and the cylinder support hinge V3815 are both quadrilateral structures, and the angles between the mechanical arm III 383 and the mechanical arm V385 and between the mechanical arm V385 and the mechanical arm VII3817 are adjusted by utilizing the principle that the quadrilateral structures are unstable and easy to deform, so that the purpose of adjusting the operation position of the suction and sweeping device 3814 is achieved.

A hydraulic oil cylinder IV 384 is further connected between the mechanical arm II 382 and the mechanical arm III 383, a hydraulic oil cylinder I3811 is arranged between the mechanical arm III 383 and the oil cylinder supporting hinge VI 3816, a hydraulic oil cylinder II 3812 is arranged between the mechanical arm V3805 and the oil cylinder supporting hinge V3815, the lifting, the translation, the expansion and the retraction of the sweeping and sucking device 3814 are realized through the linkage of the hydraulic oil cylinder IV 3804, the hydraulic oil cylinder I3811 and the hydraulic oil cylinder II 3812, and the suction pipe realizes the change of the space position through the action of the mechanical arm.

The dust removal device on the railway ballast bed sewage suction truck comprises a gravity dust remover, a cyclone dust remover and a bag-type dust remover, wherein the gravity dust remover, the cyclone dust remover and the bag-type dust remover are sequentially communicated in series, the end of the gravity dust remover is connected with a suction pipe 3808, and the rear end of the bag-type dust remover is communicated with an air inlet of an air suction fan; the outlet end of the dust removing device 3813 is located at the upstream of the conveying belt 3818, so that the discharged and transported particles after dust removal are facilitated.

The sweeping and sucking device 3814 shown in fig. 7 includes a rolling brush 3825, a motor 3826, a rotary supporting box 3827, a side sucking device cover 3829, a rotary supporting driving motor 3830, a motor driving rolling brush connecting device 3831, and a side sucking port 3832; the sweeping and sucking device 3814 comprises two double rolling brushes 3825, the two double rolling brushes 3825 are respectively arranged on two sides of a side suction port 3832, the two rolling brushes 3825 are driven by a motor 3826 to rotate towards the inside of a side suction device cover body 3829 at the same time, particulate matters in a brush hair contact area of the rolling brushes 3825 are lifted, the particulate matters are sent to the side suction port 3832, the side suction port 32 is communicated with a suction pipeline 3808, a dust removal device 3813 and a fan, negative pressure is formed at the tail end of the side suction port 3832 after the fan is started, the formed negative pressure enables dust suction side suction ports 3832 lifted by the rolling brushes 3825 to be sent to the dust removal device through the side suction port 3832 and the suction pipeline 3808, and the dust removal device discharges the particulate matters to a conveying belt 3818 after being processed.

The railway tunnel full-section track bed coal suction car set can safely and efficiently clean full-section coal dust; it adopts three-stage dust removal of gravity dust removal, cyclone dust removal and cloth bag dust removal, and the dust emission concentration is less than or equal to 30mg/m³. Adopts antistatic and fireproof and a novel dust removal system with an explosion-proof and explosion-venting device. The intelligent spraying dust-settling technology is adopted at the main working device parts such as the main suction working device, the side suction working device and the coal powder conveying system, and the coal powder dust-raising can be effectively reduced. The multi-shaft synchronous gear engaging technology can be efficient and accurate, and 8-shaft synchronous driving is guaranteed.

Claims

1. The utility model provides a coal car group is inhaled to full section railway tunnel railway roadbed, its includes that railway tunnel sleeper inner rail bed inhales coal car group and railway tunnel sleeper outer rail bed inhales coal car group, railway tunnel sleeper inner rail bed inhales coal car group includes: the main suction vehicle, the material vehicle and the power vehicle are sequentially connected; the main suction vehicle comprises a main suction vehicle frame (201), and the main suction vehicle frame (201) is installed on a third driving walking bogie (202) and a fourth driving walking bogie (207); a cabin (203), a main dust absorption and removal system (205) and a main air suction fan chamber (208) are arranged on a main suction vehicle frame (201); the lower part of the frame (201) of the main suction vehicle is also provided with a main suction working device (204) and a first conveying belt (206); the method is characterized in that: the main suction working device (204) is connected with the main dust suction and removal system (205) through a pipeline, and an explosion-proof valve is arranged in the pipeline.

2. The train set of claim 1, wherein the train set comprises: the main dust suction and removal system (205) comprises an air inlet pipeline, a gravity dust collector, a cyclone dust collector, a bag-type dust collector, a fan, an explosion suppression valve, an explosion venting valve and a discharger, wherein the gravity dust collector, the cyclone dust collector and the bag-type dust collector are sequentially arranged and connected end to end, and the explosion venting valve is uniformly arranged on the upper parts of the gravity dust collector, the cyclone dust collector and the bag-type dust collector, so that the phenomenon that pulverized coal explosion flame overflows to cause secondary explosion is prevented.

3. The train set of coal-fired trolleys for full-face track beds of railway tunnels according to claim 2, wherein: the fan is arranged in the main fan suction chamber (208), and soundproof cotton and a reflecting plate are additionally arranged in the main fan suction chamber (208).

4. The railway tunnel full-face track bed coal suction car set as claimed in claim 2 or 3, wherein: the fan passes through the intake stack and connects in gravity dust collector, cyclone, the sack cleaner, for gravity dust collector, cyclone, the sack cleaner ventilates, main suction fan room (208) upper portion wind channel includes the wind channel flaring, the upper reaches and the low reaches of this wind channel flaring all are equipped with the guide plate, this guide plate adopts streamlined structure, the wind channel is inside to set up the multiunit guide plate along the wind current direction, thereby with the even distribution of the air current of fan export to between the runner that each guide plate in wind channel constitutes, finally make the wind channel play the deceleration effect.

5. The train set of coal-fired trolleys for full-face track beds of railway tunnels according to claim 4, wherein: first conveyer belt (206) set up in the tripper below of main dust collecting and removing system (205) lower part gravity dust remover, cyclone, the sack cleaner, the coal dust of being convenient for main dust collecting and removing system (205) separation falls into first conveyer belt (206), and transport through this first conveyer belt (206) and inhale coal truck group rear portion, first conveyer belt (206) end-to-end connection is to material car (3), first conveyer belt (206) are including sealing device, prevent that coal dust from spilling over in first conveyer belt (206) butt joint process and the transportation process, produce the raise dust.

6. The train set of coal-fired trolleys for full-face track beds of railway tunnels according to claim 5, wherein: the first conveying belt (206) comprises two horizontal sections and an additional inclined section, the first horizontal section can ensure that the discharge opening of the main dust absorption and removal system discharges materials completely, the included angle between the surface of the inclined section and the horizontal plane is 20-22 degrees, and the surface gradient of the inclined section is smaller than the coal powder repose angle.

7. The train set of claim 1, wherein the train set comprises: the coal absorption vehicle group of the railway tunnel sleeper outer track bed comprises a side absorption vehicle and a material vehicle, wherein a side absorption vehicle frame (301) is arranged on a fifth driving walking bogie (302) and a sixth driving walking bogie (311); the side suction machine frame (301) is in a shape like a Chinese character 'ji', the operation cab (307) is positioned below the middle part of the shape like the Chinese character 'ji' of the side suction machine frame (301), at least one set of side suction working devices (308) is arranged and positioned at the right-angle part of the operation cab (307), the side suction working devices (308) are connected with the side suction machine frame (301) through a rotary supporting rotary table, the side suction working devices (308) are fixedly connected with the rotary supporting rotary table, and a hydraulic motor drives a worm wheel to rotate through a worm so that the mechanical arm swings out and in along the rotary axis.

8. The train set of claim 7, wherein the train set comprises: the side suction working device (308) is connected to a side suction dust removal system through a suction pipe (3808), the side suction working device comprises a sweeping suction device (3814), the upper part of the sweeping suction device is connected to a rotary supporting box body (3827), the rotary supporting box body (3827) is connected with the suction pipe, a rotary supporting driving motor (3830) is further mounted on the rotary supporting box body (3827), the rotary supporting driving motor (3830) is used for driving the rotary supporting box body (3827) to rotate to a required operation position, a side suction device cover body (3829) is further connected below the rotary supporting box body (3827), a motor (3826) is mounted above the side suction device cover body (3829), a rolling brush (3825) is mounted below the side suction device cover body (3829), the motor (3826) provides power for the rolling brush (3825), the upper part of the rotary supporting box body (3827) is communicated with the suction pipe (3808), and the lower part of the rotary supporting box body (3827) is communicated with the inner wall of the side suction device (3829), the side suction device housing (3829) includes a side suction opening (3832) therein for allowing dirt and debris on the lower surface of the side suction device housing (3829) to be sucked into the suction opening (3832) and thence through the pivoting support housing (3827) and the suction tube (3808) into the dust extraction system.

9. The train set of claim 1, wherein the train set comprises: the starting point of an air duct inlet at the top of a front and rear fan chamber of a side-draft fan of a coal-absorbing vehicle set outside a railway tunnel sleeper is a fan outlet, the axis of the air duct inlet is perpendicular to the axis of the fan outlet, at least one group of inclined planes and at least one group of horizontal planes are arranged between the air duct inlet and the air duct outlet, the at least one group of inclined planes and the at least one group of horizontal planes are in seamless connection, and the at least one group of inclined planes and the at least one group of horizontal planes are also in seamless connection with the.

10. The train set of claim 1, wherein the train set comprises: the material vehicle frame (405) is arranged on a first material vehicle travelling bogie (402) and a second material vehicle travelling bogie (404); the storage box (403) is positioned at the upper part of the material vehicle frame (405) and is arranged on the material vehicle frame (405) in the front-back center mode, the second conveying belt (401) is positioned at the front part of the storage box (403), and the second conveying belt (401) comprises a driving device so as to be capable of stretching back and forth; during operation, the second conveying belt (401) extends and is lapped at the tail end of the first conveying belt (206) and is used for receiving coal dust on the first conveying belt (206), the coal dust is conveyed into the storage box (403) through the second conveying belt (401), after the operation is finished, the second conveying belt (401) is shortened to an operation position when the operation is carried out on a steel rail, and a front-end coupler is ensured to connect the material trolley (3) with the main suction trolley (2); the throwing belt (406) is arranged at the rear end of the material vehicle frame (405) through a rotary support; the top of the throwing belt (406) is sealed, so that coal dust is prevented from overflowing in the butt joint process and the conveying process of the throwing belt (406) to generate dust; meanwhile, the throwing belt (406) has an automatic material storage function, is more intelligent and accurate in material storage, and simultaneously reduces the workload of operators, a material level sensor is arranged at the blanking position of the material storage bin, when the blanking is accumulated to a certain height, the signal is obtained by the material level sensor and fed back to a main machine of the material vehicle, and the main machine drives the main conveying belt to move forward to automatically push the material for feeding at the next section.