CN111455749A - High-efficient rail preventative operation car and maintenance equipment of polishing - Google Patents
High-efficient rail preventative operation car and maintenance equipment of polishing Download PDFInfo
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- CN111455749A CN111455749A CN201911024533.2A CN201911024533A CN111455749A CN 111455749 A CN111455749 A CN 111455749A CN 201911024533 A CN201911024533 A CN 201911024533A CN 111455749 A CN111455749 A CN 111455749A
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- 238000005498 polishing Methods 0.000 title claims abstract description 69
- 238000012423 maintenance Methods 0.000 title claims abstract description 40
- 238000000227 grinding Methods 0.000 claims abstract description 98
- 239000000428 dust Substances 0.000 claims abstract description 59
- 230000003449 preventive effect Effects 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 5
- 238000011045 prefiltration Methods 0.000 claims 2
- 238000009428 plumbing Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 20
- 239000010959 steel Substances 0.000 abstract description 20
- 230000002457 bidirectional effect Effects 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 description 18
- 230000005611 electricity Effects 0.000 description 14
- 238000009826 distribution Methods 0.000 description 11
- 238000003860 storage Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- 238000007599 discharging Methods 0.000 description 6
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- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
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- 235000004237 Crocus Nutrition 0.000 description 1
- 241000596148 Crocus Species 0.000 description 1
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
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- 230000003137 locomotive effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
- E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
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- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention provides a high-efficiency steel rail preventive polishing operation vehicle and maintenance equipment, wherein the polishing operation vehicle comprises a vehicle frame, a rest workshop and a dust suction device are arranged above the vehicle frame, a front driven bogie, a polishing unit and a rear driven bogie are arranged below the vehicle frame, and devices connected with a tractor and other operation vehicles are arranged at the front end and/or the rear end of the vehicle frame. The invention provides a high-efficiency rail preventive polishing operation vehicle and maintenance equipment. The two-end tractors are used for providing bidirectional power traction and simultaneously providing the power supply requirement of the operation system of the middle operation vehicle, thereby meeting the requirements of the high-speed running performance and the operation performance of the whole machine. The middle part operation car provides the online preventive grinding function of rail, satisfies the preventive maintenance demand of rail.
Description
Technical Field
The invention relates to the technical field of railway maintenance machinery design and manufacture, in particular to a high-efficiency rail preventive polishing operation vehicle and maintenance equipment.
Background
After long-term operation, the steel rail on the railway line has the defects of stripping and chipping, corrugation, edge fat, scratch, crack, poor light band and the like in partial sections, and particularly has side grinding in curved sections. The theoretical research and practice at home and abroad proves that the grinding is an effective means for preventing and repairing the rail diseases, and the grinding can eliminate and delay the development of corrugation, eliminate a contact fatigue layer on the surface of the rail, prevent stripping and chipping, improve the contact condition of the wheel rail, reduce the contact stress concentration and the like. At present, the preventive grinding equipment for the steel rail on the market mostly adopts a traditional grinding vehicle, the grinding speed is low by adopting an active end face grinding principle, the grinding efficiency is low, the operation mode is that a single grinding wheel is used for grinding at a single point, and the point are artificially formed into secondary wave grinding due to the fact that the grinding amount is not easy to control. Aiming at the characteristics of high efficiency and rapidness of railway steel rail maintenance, an efficient steel rail online preventive maintenance device is urgently needed, and the maintenance efficiency of the steel rail is improved.
The utility model discloses a high-speed rail grinding wagon with an authorization publication number of 208038943U, which comprises a grinding wagon body, wherein the grinding wagon body comprises one or more than two work wagons which are connected and marshalled; the working vehicle comprises a vehicle frame, wherein a cab and a machine room are arranged on the upper part of the vehicle frame; the lower part of the frame is provided with a polishing trolley, a bogie and a braking system; and a power transmission system, a hydraulic system and a dust collecting device are arranged in the machine room. The utility model
The grinding machine is provided with a walking power and transmission system, is provided with a high-speed grinding trolley, and can carry out high-speed grinding operation by one trolley or by a plurality of grinding trolleys which are connected in a marshalling way. The grinding wagon has the disadvantages that the power transmission system and the grinding trolley are integrated on one wagon, the space is compact, and the maintenance is inconvenient; secondly, the whole vehicle is not provided with a grinding wheel storage room and a lifting device, so that a large number of grinding wheels are inconvenient to transport and replace, the grinding wheels are consumable, the grinding wheels are not stored, and the durability of the whole vehicle operation is poor; thirdly, the whole vehicle is not provided with a rest room and a tool room, and the man-machine performance of the whole vehicle is poor.
Disclosure of Invention
In order to solve the technical problems, the invention provides a high-efficiency rail preventive polishing operation vehicle and maintenance equipment. The two-end tractors are used for providing bidirectional power traction and simultaneously providing the power supply requirement of the operation system of the middle operation vehicle, thereby meeting the requirements of the high-speed running performance and the operation performance of the whole machine. The middle part operation car provides the online preventive grinding function of rail, satisfies the preventive maintenance demand of rail.
The invention provides a high-efficiency rail preventive polishing operation vehicle which comprises a vehicle frame, wherein a rest workshop and a dust suction device are arranged above the vehicle frame, a front driven bogie, a polishing unit and a rear driven bogie are arranged below the vehicle frame, and devices connected with a tractor and other operation vehicles are arranged at the front end and/or the rear end of the vehicle frame.
Preferably, the rest work room is used for resting of workers and placing tools used for daily maintenance.
In any of the above schemes, preferably, the dust suction device comprises a dust suction pipeline device, a pre-filtering device, a fine filtering device and a spiral conveying and ash discharging device.
In any of the above schemes, preferably, the milled powder generated in the grinding process passes through the dust collection pipeline device along with the air flow under the action of the centrifugal fan, the dust with heavy particles enters the pre-filtering device, the light dust enters the fine filtering device, finally the dust is collected in the dust collection bin, and the clean air is discharged to the atmosphere.
In any of the above aspects, preferably, the dust in the dust collecting bin is collectively discharged to the outside of the vehicle through the screw conveyance and dust discharge system.
In any of the above aspects, the front driven bogie and the rear driven bogie are bogies having no driving function.
In any of the above solutions, it is preferable that the polishing unit is composed of at least one set of polishing cart.
In any of the above schemes, preferably, the polishing trolley is composed of a lifting/lowering cylinder, a framework, a polishing unit running device, a lifting/lowering and swinging device, a polishing beam, a grinding wheel row group, a dust-blocking plate of a dust suction device, a hydraulic pump station and a sensor.
In any of the above aspects, preferably, the lift cylinder is connected at an upper end to the frame and at a lower end to the frame.
In any of the above schemes, preferably, the two ends of the framework are provided with pushing and locking mechanisms for pushing the polishing trolley to run and locking the polishing trolley on the frame after the polishing trolley is lifted to the proper position by the lifting oil cylinder.
The second purpose of the invention is to provide high-efficiency preventive rail maintenance equipment, which comprises a tractor and at least one high-efficiency preventive rail grinding work vehicle 2 according to the first purpose.
Preferably, the tractor is a power tractor 1 and/or a power tractor 3.
In any of the above schemes, preferably, the power tractor 1 takes power from the catenary by the pantograph of the catenary power-taking room of the power tractor 3, and the power source of the power tractor 1 is provided through the catenary side cabinet and the main transformer.
In any of the above schemes, preferably, the power tractor 1 includes a frame, and a front cab, a power exchange room and a power system room are sequentially arranged above the frame; the lower part of the frame is composed of a front power bogie, a diesel tank, a plate brake and a rear power bogie.
In any of the above schemes, preferably, the cab is provided with a traveling operation console, an electric appliance cabinet, an operation console, a display screen, a workbench and an air conditioning system.
In any of the above schemes, the power system room preferably comprises an emergency engine, an emergency generator, a radiator and an auxiliary generator.
The preferred is in above-mentioned arbitrary scheme, when the unable power supply of contact net, emergency engine gets off the machine after, through emergency generator provides the power supply for single-machine four-axis power traction is polished, or walks at a high speed for single-machine four-axis emergency traction.
In any of the above schemes, preferably, the power exchange room includes a cooling tower, a converter, an isolation transformer, a dc distribution cabinet, an ac distribution cabinet, and a booster fan.
In any of the above schemes, preferably, the front power bogie and the rear power bogie are driven by traction motors.
In the preferred in any one of the above schemes, the power tractor 3 gets electricity from the contact network through the contact network pantograph between getting electricity, and the power supply demand of the power source of the power tractor 3 and the grinding wagon is provided through the network side cabinet and the main transformer.
In any of the above schemes, preferably, the power tractor 3 includes a frame, and the upper part of the frame is composed of a grinding wheel storage room, a power exchange and contact net electricity taking room, a rear cab and a pantograph; the lower part of the frame is composed of a front power bogie, a main transformer, a plate brake and a rear power bogie.
In any of the above schemes, preferably, the power exchange and contact network electricity taking room comprises a converter, a cooling tower, an isolation transformer, a pantograph rising air compressor, a storage battery charger, a booster fan and a network side cabinet.
In any of the above schemes, preferably, the auxiliary isolation transformer of the power tractor 1 and the auxiliary isolation transformer of the power tractor 3 respectively supply power to the auxiliary load of the entire vehicle traction system and the grinding operation system, and the power supply output sides of the two auxiliary inverters adopt a parallel power supply mode and are mutually redundant in power supply.
The invention provides a high-efficiency preventive polishing operation vehicle for steel rails and maintenance equipment, which are mainly suitable for preventive polishing before a newly repaired line is put into use and also suitable for preventive polishing after harmful line is repaired.
Drawings
Figure 1 is a front view of a preferred embodiment of a high efficiency rail preventative grinding service vehicle according to the present invention.
Figure 1A is a top view of the embodiment of the high efficiency rail preventative grinding service vehicle according to the present invention as shown in figure 1.
Fig. 2 is a schematic diagram of an apparatus group according to a preferred embodiment of the high-efficiency preventive maintenance apparatus for rails of the present invention.
Fig. 3 is a front view of the power tractor 1 of the embodiment shown in fig. 2 of the high-efficiency rail preventive maintenance equipment according to the present invention.
Fig. 3A is a top view of the power tractor 1 of the embodiment shown in fig. 2 of the high efficiency rail preventative maintenance apparatus according to the present invention.
Fig. 4 is a front view of the power tractor 3 of the embodiment shown in fig. 2 of the high efficiency rail preventative maintenance apparatus according to the present invention.
Fig. 4A is a top view of the power tractor 3 of the embodiment shown in fig. 2 of the high efficiency rail preventative maintenance apparatus according to the present invention.
Fig. 5 is a main circuit block diagram of an embodiment of an electric traction system and a power supply system of the high-efficiency rail preventive maintenance device according to the present invention.
Detailed Description
The invention is further illustrated with reference to the figures and the specific examples.
Example one
As shown in fig. 1 and 1A, the high-efficiency rail preventive grinding work vehicle comprises a rest tool room 21, a hydraulic pump station 22, a dust suction device 23, a driven bogie 24, a grinding unit 25 and the like. The working vehicle comprises a frame, a rest tool room 21 and a dust suction device 23 are arranged above the frame; the lower part of the frame is provided with a front driven bogie, a grinding unit and a rear driven bogie. The grinding operation vehicle is driven by the tractor 1 and the tractor 3, and the grinding wheel acts on the top surface of the steel rail through the grinding device, so that preventive maintenance of the steel rail is realized.
The rest tool room 21 is used for resting and placing tools, wrenches and the like used for daily maintenance for workers.
The dust suction device 23 comprises a dust suction pipe system 231, a pre-filtering system 232, a fine filtering system 233 and a spiral conveying and ash discharging system 234. The ground powder produced in the grinding process flows through the dust collection pipeline system 231 along with the air flow under the action of the centrifugal fan, the dust with heavy particles enters the pre-filtering system 232, the light dust enters the fine filtering system 233, finally the dust is collected in the dust collection bin, and the clean air is exhausted to the atmosphere. The dust in the dust collecting bin is intensively discharged out of the vehicle through the screw conveying and dust discharging system 234. The dust suction devices 23 are symmetrically arranged on two sides of the frame, and are used for collecting and discharging dust generated after the steel rails on the left side and the right side are polished respectively, and a through channel is designed in the middle.
The front driven bogie and the rear driven bogie are bogies without driving function.
The polishing unit 25 is composed of one or more polishing trolleys, and each polishing trolley is composed of a lifting/lowering oil cylinder, a framework, a polishing unit walking system, a lifting/lowering and swinging system, a polishing beam, a grinding wheel row group, a dust collection device dust baffle plate, a hydraulic pump station, a sensor and the like. The upper end of the lifting/lowering oil cylinder is connected with the frame, and the lower end of the lifting/lowering oil cylinder is connected with the framework; and pushing and locking mechanisms are arranged at two ends of the framework, and are used for pushing the polishing trolley to run and lifting the polishing trolley to the proper position by the lifting oil cylinder so as to lock the polishing trolley on the frame, thereby ensuring the high-speed running safety of the polishing trolley in a non-operation state.
Example two
A high-efficiency preventive maintenance device for steel rails is mainly suitable for preventive polishing before newly repaired lines are put into use and also suitable for preventive polishing after harmful lines are repaired.
The equipment consists of a head section power tractor, a tail section power tractor and a middle section operation vehicle. The two-end tractors are used for providing bidirectional power traction and simultaneously providing the power supply requirement of the operation system of the middle operation vehicle, thereby meeting the requirements of the high-speed running performance and the operation performance of the whole machine. The middle part operation car provides the online preventive grinding function of rail, satisfies the preventive maintenance demand of rail.
The technical scheme includes that the efficient steel rail online preventive maintenance equipment comprises a head section power tractor, a tail section power tractor and a middle section grinding operation vehicle, or comprises the head section power tractor, the tail section power tractor and the middle section grinding operation vehicle according to grinding requirements, or comprises one section power tractor and one or more grinding operation vehicles. The polishing operation vehicle is driven by the power tractor to realize preventive polishing of the steel rail through the polishing unit, the polishing operation vehicle is provided with an independent hydraulic pump station, a control system, a dust suction device, a steel rail polishing unit and the like, and the polishing operation can be realized by connecting and grouping a plurality of sections of polishing operation vehicles.
The power-driven tractor 1 is powered by a pantograph between the contact network power-taking of the power-driven tractor 3 from the contact network, and a power source of the power-driven tractor 1 is provided through a network side cabinet and a main transformer. The power tractor 1 comprises a frame, and a front cab, a power exchange room and a power system room are sequentially arranged above the frame; the lower part of the frame is sequentially composed of a front power bogie, a diesel tank, a plate brake and a rear power bogie.
The cab is provided with a walking operation platform, an electric appliance cabinet, an operation platform, a display screen, a workbench, an air conditioning system and the like;
including emergency engine, emergency generator, radiator, auxiliary generator etc. between driving system, driving system only is used for when the unable power supply of contact net, and emergency engine plays the machine back, provides the power supply through emergency generator and can do the stand-alone four-axis power and pull and polish, also can do the stand-alone four-axis emergency and pull high-speed walking. And the emergency traction working condition provides an emergency traction and emergency traction auxiliary system for the whole vehicle through rectification and inversion of alternating current generated by the emergency generator. Meanwhile, under the emergency working condition of the whole machine, the power is supplied to a traction system of the whole machine and auxiliary power systems such as a charger, an air conditioner, lighting, a compressor, glass heating and the like.
The power exchange room comprises a cooling tower, a converter, an isolation transformer, a direct-current power distribution cabinet, an alternating-current power distribution cabinet, a booster fan and the like;
and the front cab, the power exchange room and the power system adopt a through design.
The front power bogie and the rear power bogie adopt a traction motor driving mode.
The plate type brake has the advantages of small volume, light weight, large braking torque, quick action and low noise, and can meet the requirements of safety and automation of vehicles.
The grinding operation vehicle 2 comprises a vehicle frame, and a rest tool room and a dust suction device are arranged above the vehicle frame; the lower part of the frame is provided with a front driven bogie, a grinding unit and a rear driven bogie. The grinding operation vehicle is driven by the tractor 1 and the tractor 3, and the grinding wheel acts on the top surface of the steel rail through the grinding device, so that preventive maintenance of the steel rail is realized.
The tool room is used for placing tools, wrenches and the like used for daily maintenance;
the dust suction device comprises a dust suction pipeline system, a pre-filtering system, a fine filtering system and a spiral conveying and ash discharging system. The crocus that the in-process of polishing produced is through dust absorption pipe-line system along with the air current under centrifugal fan's effect, and the heavy dust of granule gets into filtration system in advance, and the fine filtration system of lighter dust entering final dust collects the dust collection storehouse, and clean air is discharged to the atmosphere. The dust in the dust collecting bin is intensively discharged out of the vehicle through the spiral conveying and dust discharging system. The dust suction devices are symmetrically arranged on two sides of the frame, dust generated after grinding of the steel rails on the left side and the right side is collected and discharged respectively, and a through channel is designed in the middle.
The front driven bogie and the rear driven bogie are bogies without driving function;
the polishing unit comprises one set and more than one set of polishing trolleys, and each set of polishing trolley comprises a lifting/lowering oil cylinder, a framework, a polishing unit walking system, a lifting/lowering and swinging system, a polishing beam, a grinding wheel row group, a dust collection device dust baffle plate, a hydraulic pump station, a sensor and the like. The upper end of the lifting/lowering oil cylinder is connected with the frame, and the lower end of the lifting/lowering oil cylinder is connected with the framework; and pushing and locking mechanisms are arranged at two ends of the framework, and are used for pushing the polishing trolley to run or brake and lifting the polishing trolley to the proper position by the lifting oil cylinder so as to lock the polishing trolley on the frame, thereby ensuring the high-speed running safety of the polishing trolley in a non-operation state.
The power tractor 3 gets the electricity from the contact net through the contact net is got the pantograph between the electricity, provides power supply and the power supply demand of the car of polishing of power tractor 3 through net side cabinet and main transformer. The power tractor 3 comprises a frame, and a grinding wheel storage room, a power exchange and contact net power taking room, a rear cab and a pantograph are sequentially arranged above the frame; the lower part of the frame is sequentially composed of a front power bogie, a main transformer, a plate brake and a rear power bogie.
The grinding wheel storage room is used for storing grinding wheels, including new grinding wheels or replaced old grinding wheels;
the power exchange and contact network electricity taking room comprises a converter, a cooling tower, an isolation transformer, a pantograph rising air compressor, a storage battery charger, a booster fan, a network side cabinet and the like;
the functions and the arrangement of the rear cab and the front cab are basically consistent;
the front power bogie and the rear power bogie adopt a traction motor driving mode;
the auxiliary isolation transformer of the power tractor 1 and the auxiliary isolation voltage transformation of the power tractor 3 respectively supply power for an auxiliary load of a whole vehicle traction system and a grinding operation system, and meanwhile, the power supply output sides of the two auxiliary inverters adopt a parallel power supply mode and are mutually redundant in power supply.
EXAMPLE III
As shown in fig. 2, the high-efficiency on-line preventive maintenance equipment for the steel rails is composed of a power vehicle tractor 1, a grinding work vehicle 2 and a power vehicle tractor 3. The three cars are connected through a car coupler.
The high-speed running and the polishing operation running of the maintenance equipment adopt an electric driving mode; according to the line requirement or the user requirement, the multi-section power vehicle and the multi-section working vehicle can be grouped and combined for use. The whole vehicle has three energy supply modes of a contact net electricity taking mode, an emergency generator mode and an auxiliary generator mode, the contact net electricity taking mode and the emergency generator mode can independently meet the power supply requirements of high-speed walking and polishing operation, the vehicle has a mutual protection function, and the auxiliary generator mode is mainly used for maintenance and life power utilization. During polishing operation, the polishing operation system can continuously supply power for polishing when the contact network line passes through the split-phase area through the super capacitor seamless switching technology.
The maintenance equipment is flexibly arranged, and a plurality of sections of power vehicles and a plurality of sections of working vehicles can be grouped and combined for use according to the polishing requirement. The power system adopts a contact net electricity-taking scheme, large power source equipment is omitted, the whole vehicle layout is compact, the obstacle removing and overhauling are relatively easy, and the vibration and noise reducing device has the characteristics of small vibration and low noise. The whole set of equipment is equipped with the internal-combustion engine emergency system, when the contact net can not get the electricity, for the complete machine provides power, realizes emergent walking and emergent polishing, has avoided single system to break down effectively and has leaded to the condition emergence of unable operation. The high-efficiency steel rail online preventive maintenance equipment has the characteristics of high grinding speed and high efficiency, and is particularly suitable for arranging skylight points with busy high-speed rails at present. Efficient dust absorption effect for need not to clean track and switch after polishing, greatly be applicable to polishing in the tunnel. Each section of the vehicle adopts a through passage design, so that the interoperability of the three sections of the vehicle is improved.
As shown in fig. 3 and 3A, the motor vehicle tractor 1 is composed of a driver cab 11, a power system room 12, a power exchange room 13, a power bogie 14, an auxiliary generator set 15, a diesel tank 16, an isolation transformer 17, and the like.
The cab 11 of the power vehicle tractor 1 is composed of a traveling console 111, a work console and display 112, an electrical control cabinet 113, a workbench 114, and the like.
The power system room 12 is composed of an emergency engine 121, an emergency generator 122 and the like.
The power exchange room 13 includes a cooling tower 131, a converter 132, a dc distribution cabinet 133, an ac distribution cabinet 134, and the like.
As shown in fig. 4 and 4A, the power vehicle tractor 3 includes a grinding wheel storage room 31, a power exchange and catenary electricity taking room 32, a pantograph 33, a cab 34, a power bogie 35, an isolation transformer 36, a main transformer 37, and the like.
The power exchange and contact network electricity-taking room 32 of the power vehicle tractor 3 mainly comprises a cooling tower 321, a converter 322, a network side cabinet 323, an alternating current power distribution cabinet 324, a storage battery charger 325, a direct current power distribution cabinet 326 and the like.
The power system of the maintenance equipment comprises a pantograph 33, a cooling tower 321, a converter 322, a grid-side cabinet 323, a storage battery charger 325, a power bogie 35, an isolation transformer 36, a main transformer 37 and the like. The power system runs in the following implementation mode: the overhead line system → the pantograph 33 → the overhead line side cabinet 323 → the main transformer 37 → the converter (132 or 322) → the traction motor → the gear box drives the wheel to rotate, so that the high-speed running of the equipment is realized. The traction motor vehicle 1 and the traction motor vehicle 2 work on the same principle. According to the grinding power requirement, the whole vehicle can realize four-axis or eight-axis driving.
And (3) grinding operation conditions: 1) when the phase separation region is divided into two phases, the super capacitor 327 → the current transformer 322 → the isolation transformer (36) → the grinding unit of the grinding operation vehicle, so that the preventive grinding function of the steel rail is realized; 2) during operation, an overhead line system → the pantograph 33 → a network side cabinet 323 → a main transformer 37 → a converter (322) → an isolation transformer (36) → a sanding unit operation of the sanding operation vehicle, and simultaneously, the converter (322) → a traction motor → a gear box drives wheels to rotate, so that high-speed traveling of equipment operation is realized. According to the grinding power requirement, the whole vehicle can realize four-axis or eight-axis driving.
Emergency working condition (when the contact net can not take electricity): according to actual conditions, the emergency working conditions can be divided into emergency running, emergency polishing and towed polishing working conditions.
Emergency running working condition: the emergency engine 121 → the emergency generator 122 → the converter 132 → the traction motor → the gear box drives the wheel to rotate, so as to realize the high-speed running of the equipment.
Emergency polishing condition: four-shaft power traction grinding of the No. 1 power tractor is achieved through the emergency engine 121 and the emergency generator 122. And meanwhile, supplying power to the grinding system by a current transformer (322) → an isolation transformer (36) → the grinding operation of the grinding operation vehicle and the grinding unit.
The working condition of the traction and grinding operation is as follows: the grinding operation is carried out on a non-electrified railway, the emergency engine 121 and the emergency generator 122 of the power tractor 1 are started through traction of the internal combustion locomotive, and power consumption of a grinding system of the grinding operation vehicle is provided through the isolation transformer 17 and the converter 132.
The emergency working condition is that when the contact net can not take electricity, the emergency engine can be used for single-machine four-axis power traction and grinding after being started, and can also be used for emergency traction of a generator, or used for emergency grinding by a generator pulled by other vehicles.
And (3) maintenance mode: in the parking maintenance mode or in the workshop maintenance mode, the auxiliary generator set 15 or an external power supply can supply power for the auxiliary system and the grinding operation system.
A coupling operation mode: the traction system and the polishing operation system are all closed, and only the shaft temperature monitoring device is kept to normally operate; secondly, because the traction motor can not be separated from the axle gear box, the traction motor can be dragged in the process of continuous operation, in order to ensure the operation safety, the temperature of the traction motor can be monitored, and the alarm prompt is immediately given when the temperature exceeds the set temperature.
Example four
As shown in fig. 5, the main circuit block diagram of the electric traction system and the power supply system is composed of a traction converter, a catenary power-taking device, a traction motor, an emergency generator set, a super capacitor, a bidirectional DC/DC module, an auxiliary isolation transformer and an alternating current power distribution cabinet.
The contact net gets electricity and pulls and walks capable major loop: the pantograph → the net side cabinet → the main transformer → the four-quadrant rectifier module → the inverter module → the traction motor, so as to realize the traction and walking control of the equipment.
The contact net gets the electric auxiliary power main loop: the pantograph → the net side cabinet → the main transformer → the four-quadrant rectifier module → the auxiliary power supply inversion module → the isolation transformer → the alternating current power distribution cabinet, so as to realize the power supply of the auxiliary load of the equipment and the polishing operation system.
The emergency generator set supplies power to pull a walking main loop: the emergency generator set → the three-phase rectifier module → the inverter module → the traction motor, and the emergency traction and walking control of the equipment is realized.
Pass the incessant power supply major loop of neutral section operation system of polishing: the super capacitor → the bidirectional DC/DC module → the auxiliary power supply inversion module → the isolation transformer → the alternating current power distribution cabinet, so that the uninterrupted power supply operation of the polishing operation system is realized when the equipment passes through a contact network phase splitting section.
For a better understanding of the present invention, the foregoing detailed description has been given in conjunction with specific embodiments thereof, but not with the intention of limiting the invention thereto. Any simple modifications of the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention. In the present specification, each embodiment is described with emphasis on differences from other embodiments, and the same or similar parts between the respective embodiments may be referred to each other. For the system embodiment, since it basically corresponds to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
Claims (10)
1. The utility model provides a high-efficient rail preventative operation car of polishing, includes the frame, its characterized in that: the frame top is rest workshop and dust extraction, the frame below is preceding driven bogie, the unit of polishing, back driven bogie, the device that is connected with tractor and other operation cars is installed to the front end and/or the rear end of frame.
2. A high efficiency rail preventative grinding work vehicle as claimed in claim 1 wherein the break room is used for personnel to break and place tools for routine maintenance.
3. A high efficiency rail preventative grinding operation vehicle as set forth in claim 2 wherein said dust extraction means includes dust extraction plumbing, pre-filtration, fine filtration and auger delivery and ash removal means.
4. A high efficiency rail preventative grinding vehicle as claimed in claim 3 wherein the ground powder produced during grinding is passed through said dust extraction duct means with the air flow under the action of a centrifugal fan, the heavy dust particles enter the pre-filter means, the lighter dust particles enter the fine filter means, and finally the dust particles are collected in the dust collection bin and the clean air is vented to atmosphere.
5. A high efficiency rail preventative grinding operation vehicle as set forth in claim 1 wherein dust in said dust collection bin is collectively exhausted to the exterior of the vehicle via said auger delivery and ash discharge system.
6. A high efficiency rail preventative grinding work vehicle as set forth in claim 1 wherein said front and rear driven trucks are non-drive trucks.
7. A high efficiency rail preventative grinding work vehicle as claimed in claim 1 wherein said grinding unit consists of at least one set of grinding carriages.
8. A high efficiency rail preventative grinding operation vehicle as claimed in claim 7 wherein the grinding carriage is comprised of lift/lower rams, frames, grinding unit travel means, lift/lower and swing means, grinding beams, grinding wheel banks, dust extraction dust baffles, hydraulic pump stations and sensors.
9. A high efficiency rail preventative grinding work vehicle as set forth in claim 8 wherein said lift/lower cylinder is connected at an upper end to the frame and at a lower end to the frame.
10. A high-efficiency preventive rail maintenance device comprising a tractor and at least one high-efficiency preventive rail grinding work vehicle 2 according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911024533.2A CN111455749A (en) | 2019-10-25 | 2019-10-25 | High-efficient rail preventative operation car and maintenance equipment of polishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911024533.2A CN111455749A (en) | 2019-10-25 | 2019-10-25 | High-efficient rail preventative operation car and maintenance equipment of polishing |
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| Publication Number | Publication Date |
|---|---|
| CN111455749A true CN111455749A (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911024533.2A Pending CN111455749A (en) | 2019-10-25 | 2019-10-25 | High-efficient rail preventative operation car and maintenance equipment of polishing |
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| CN (1) | CN111455749A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790669A (en) * | 2022-04-21 | 2022-07-26 | 北京同和时代轨道科技有限公司 | Curved surface grinding wagon with double-shaft bogie |
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| CN114790669A (en) * | 2022-04-21 | 2022-07-26 | 北京同和时代轨道科技有限公司 | Curved surface grinding wagon with double-shaft bogie |
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