CN204279441U - Sand-proof high speed railway car - Google Patents
Sand-proof high speed railway car Download PDFInfo
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- CN204279441U CN204279441U CN201420769613.7U CN201420769613U CN204279441U CN 204279441 U CN204279441 U CN 204279441U CN 201420769613 U CN201420769613 U CN 201420769613U CN 204279441 U CN204279441 U CN 204279441U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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Abstract
The utility model relates to a kind of sand-proof high speed railway car, comprise car body, bogie truck, equipment compartment, pantograph and roof-mounted air-condition unit, junction between the skirtboard of equipment compartment, base plate, skeleton and car body is and is tightly connected, the outside face of car body, bogie truck, equipment compartment and pantograph all scribbles the coating of sand-proof, bogie truck is also provided with and organizes jetting system more, described jetting system is connected with air feed wind regime by air-supply pipeline, and the described jetting system of many groups is used for spraying pressurized air to the track in brake system and/or wheel front.The utility model runs in rocky, desert environmental the series of problems existed by analyzing existing motor train unit, system analysis problem Producing reason, the scheme of Optimal improvements is proposed, lifting is optimized to motor train unit each entire system sand prevention performance, makes guideway vehicle can meet the requirement of runing in the environment of high and cold high temperature, high dust storm.
Description
Technical field
The utility model relates to a kind of guideway vehicle, and particularly a kind of being suitable for, at the sand-proof high speed railway car of high and cold, high wind sandy land operation, belongs to guideway vehicle manufacturing technology field.
Background technology
The high speed railway cars such as existing motor train unit can not adapt in sandy area, desert environmental operation, as domestic Lanzhou-Xinjiang cable release, and external Saudi Arabia, U.S.'s desert cable release etc.The running velocity 200km/h-250km/h of Lanzhou-Xinjiang cable release, its running environment is severe, and its whole year has more than 100 day more than more than 30 DEG C, has more than 40 day more than 40 DEG C, historical high temperature 49.6 DEG C.The most High aititude of circuit reaches 3610 meters.Annual more than the 3000 hours sunshine-duration, radiation amount 139.5 blocks, and ultraviolet radiation is serious, and is Gobi desert landforms substantially along the line, rocky dirt.
Existing motor train unit cannot meet above-mentioned operation demand, and the subject matter of existence is, the anti-fight performance of the car body external coating, bogie truck external coating, equipment ceiling board, glass for vehicle window etc. of existing vehicle is more weak; Vehicle power unit ventilating and cooling poor-performing, traction transformer, traction convertor, traction electric machine, accessory feed, Air compressor etc., due to dust storm blocking filter screen, cause cooling bad, high temperature alarm; Equipment compartment non-tight structure, because vehicle high-speed runs a large amount of sand and dust of negative-pressure adsorption produced in operation, had both caused traction energy consumption to increase, and axle also can have been caused heavily to increase, there is overweight potential safety hazard; Air-conditioning work is often broken down, and dust storm blocking air conditioner condensation filter screen causes high temperature alarm, and new wind filter screen filter sand effect is bad, causes guest room New atmosphere quality to decline.Existing motor train unit, when rocky, desert environmental are runed, frequently can be reported to the police in operation, are caused the faults such as stoppage in transit, rescue, have a strong impact on operation order and traffic safety.
For the especial operation condition of Lanzhou-Xinjiang railway line for passenger traffic, high and cold, dust storm, high temperature, High aititude, strong wind, intensive ultraviolet are proposed to existing motor train unit, distance of growing up transport seven technological challenges greatly.
Utility model content
The utility model main purpose is to solve the problem, and provides a kind of sand-proof high speed railway car be suitable in high and cold, high wind sandy land operation.
For achieving the above object, the technical solution of the utility model is:
A kind of sand-proof high speed railway car, comprise car body, bogie truck, equipment compartment, pantograph and roof-mounted air-condition unit, described car body is made up of roof, side wall, headwall and underframe, described bogie truck comprise framework, traction drive system, brake system, suspension, wheel to and axle box, it is characterized in that:
Described equipment compartment is made up of the skirtboard of both sides, base plate and skeleton, described skeleton is fixedly mounted on the underframe of described car body, described base plate is connected with skeleton, the bottom of described skirtboard is connected with skeleton, the top of described skirtboard is connected with car body, and the junction between described skirtboard, base plate, skeleton and car body is and is tightly connected;
The coating structure of described side wall comprises wall primer layer, wall putty layer, wall floating coating layer, metope enamelled coating and wall clear coat finish; The coating structure of described roof comprises top prime coat, top floating coating layer, end face enamelled coating and top clear coat finish; The coating structure of described underframe comprises underframe prime coat and underframe top coat layer; The coating structure of described bogie truck and equipment compartment comprises frame prime coat, frame top coat layer and frame clear coat finish;
Described bogie truck is provided with and organizes jetting system more, described jetting system is connected with air feed wind regime by air-supply pipeline, and the described jetting system of many groups is used for spraying pressurized air to the track in brake system and/or wheel front.
Further, described air-supply pipeline is serially connected with for adding the required compressed-air actuated heating arrangement of thermojet.
Further, be centered around the equipment ceiling board arranged around described bogie truck, its rear and front end tilts to bogie truck direction from bottom to top.
Further, the bottom section bar of described skirtboard is connected by elongated folding with between described skeleton, is connected with many for supporting the safety harness of described skirtboard between described skirtboard and car body.
Further, safe latch is fixedly connected with one by two elastic force cam locks with between car body on the top of described skirtboard.
Further, described roof-mounted air-condition unit comprises housing, in the outside of housing, side cover plate is installed, housing offers air outlet, return air inlet and new wind chamber opening, described side cover plate offers new wind entrance, respectively filtering installation is installed at described new wind entrance, new wind chamber opening and return air inlet place.
Further, described skirtboard offers the first ventilation inlet and the first air outlet, centralized supply wind device is installed in described equipment compartment, the air intake vent of described centralized supply wind device is communicated with the first ventilation inlet on described skirtboard by wind inlet channel, and the exhaust outlet of described centralized supply wind device is communicated with equipment compartment and is used for drying to the equipment in equipment compartment.
Further, the wall primer of described side wall, wall putty, wall floating coating, wall finiss and wall varnish are respectively epoxy primer, Unsaturated polyester putty, polyurethane inter-coat, polyurethane finish and polyurethane lacquer, and the top priming paint of described roof, top floating coating, end face paint and top varnish are respectively epoxy primer, polyurethane inter-coat, polyurethane finish and polyurethane lacquer; Underframe priming paint and the underframe finish paint of described underframe are respectively epoxy primer and polyurethane finish; The frame priming paint of described bogie truck and equipment compartment, frame finish paint and frame varnish are respectively epoxy primer, epoxy elasticity finish paint and fluorine carbon varnish.
Further, a streamlined reefer housing protruded to described bogie truck direction is respectively set in the rear and front end along vehicle operating direction of described equipment ceiling board.
Further, the skirtboard of described bogie truck rear and front end is respectively provided with the deflecting plate that protrudes from described skirtboard.
To sum up content, a kind of sand-proof high speed railway car described in the utility model, by analyzing existing motor train unit rocky, the series of problems existed is run in desert environmental, system analysis problem Producing reason, the scheme of Optimal improvements is proposed, by adopting roof-mounted air-condition unit, car body and the new coating structure of bogie truck, equipment compartment design of Sealing Structure and arrange and spray compressed-air actuated jetting system to brake system and track, lifting is optimized to motor train unit each entire system sand prevention performance, make guideway vehicle can meet at high and cold high temperature (-40 DEG C ~+40 DEG C), dust storm, High aititude (3610 meters), strong wind (maximum wind speed 33m/s), intensive ultraviolet (annual more than the 3000 hours sunshine-duration, radiation amount 139.5 blocks), the requirement of runing in the environment of distance (more than 2000 kilometers) of growing up.
Accompanying drawing explanation
Fig. 1 is the utility model guideway vehicle structural representation;
Fig. 2 is the utility model equipment compartment structural representation;
Fig. 3 is the utility model equipment compartment apron board mounting structure schematic diagram;
Fig. 4 is the utility model air feed system structural representation one;
Fig. 5 is the utility model air feed system structural representation two;
Fig. 6 is the utility model air-conditioning unit structure schematic diagram;
Fig. 7 is the utility model fairing installation structure schematic diagram;
Fig. 8 is the utility model streamlined reefer housing section structure schematic diagram.
As shown in Figures 1 to 8, car body 1, bogie truck 2, equipment compartment 3, roof-mounted air-condition unit 4, headwall 5, side wall 6, roof 7, underframe 8, skirtboard 9, base plate 10, skeleton 11, master cock 12, folding 13, safety harness 14, first ventilation inlet 15, first air outlet 16, centralized supply wind device 17, wind inlet channel 18, air feed wind regime 19, air-supply pipeline 20, jetting system 21, 22, brake clamp 23, brake disc 24, wheel 25, framework 26, jet pipe 27, exhausting plate 28, journal box body 29, baffle plate 30, heating arrangement 31, housing 32, evaporation cavity 33, condensation chamber 34, new wind chamber 35, useless row chamber 36, condensation air outlet 37, side cover plate 38, useless discharge air port 39, new wind entrance 40, condensation ventilation inlet 41, streamlined reefer housing 42, mount pad 43, bolt 44, deflecting plate 45.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail:
As shown in Figure 1, a kind of sand-proof high speed railway car that the utility model provides, comprises car body 1, bogie truck 2, equipment compartment 3, roof-mounted air-condition unit 4.Car body 1 is made up of headwall 5, side wall 6, roof 7 and underframe 8, bogie truck 2 comprise framework, traction drive system, brake system, suspension, wheel to and axle box etc., traction drive system comprises the parts such as traction electric machine, gear case, brake system comprises the parts such as brake clamp and brake disc, air after process is sent into the temperature and humidity regulating guest room in guest room by roof-mounted air-condition unit 4 by supply air duct, discharged outside car by waste gas simultaneously.The equipment such as voltage transformer, current transformer is installed in equipment compartment 3.
As shown in Figure 2, equipment compartment 3 forms by being positioned at the skirtboard 9 of car body both sides, base plate 10 and skeleton 11, and skeleton 11 is bolted on the crossbeam of vehicle body bottom frame 8, base plate 10 around bogie truck 2 upwards depression be bogie truck 2 slot milling.In the present embodiment, cabin 3 entirety is set for hermetically-sealed construction, junction between its skirtboard 9, base plate 10, skeleton 11 and car body 1 is provided with sealing joint strip and realizes being tightly connected, to avoid in ice and snow in environment, dust storm access arrangement cabin 3, guarantee equipment can normally run for a long time in harsh environment.
Be centered around the base plate 10 that bogie truck 2 surrounding is arranged, its rear and front end tilts to bogie truck 2 direction from bottom to top, again by arc transition or by a knuckle plate transition, the air velocity distribution distribution after entering bogie truck 2 can be improved like this, air-flow is introduced the top of bogie truck 2 by inclined floor 10 obliquely, be beneficial to air flowing, reduce air resistance.
As shown in Figure 3, in the present embodiment, be pasted with sealing joint strip in the surrounding of skirtboard 9, skirtboard 9 adopts the structure overturning and open downwards, and the bottom section bar of skirtboard 9 is connected by elongated folding 13 with between skeleton 11.Many safety harnesses 14 are connected with, to support skirtboard 9 when skirtboard 9 is in open mode between the lower-edge beam of skirtboard 9 and car body 1.Safe latch is fixedly connected with one by two elastic force cam locks between the top of skirtboard 9 and the lower-edge beam of car body 1, two elastic force cam locks are arranged on the both sides of safe latch, skirtboard 9 is fixed by rotating tension by two elastic force cam locks, close and open and all need key, safe latch band elastic force dead bolt, does not need key during closedown, open and need key, after being opened by above-mentioned 3 lock corner keys, namely turningly open skirtboard 9, open mode is supported by safety harness 14.
Base plate 10 is spliced by polylith, and the edge of each piece is provided with sealing band, to ensure that base plate 10 realizes sealing after splicing.Be connected by slideway structure between base plate 10 with skeleton 11, skeleton 11 arranges slideway, the structure of base plate 10 is primarily of aluminium alloy extrusions and the slide block composition being welded on section bar two ends, slide block slides in slideway, realize the pull of base plate 10, and one deck sealing joint strip is pasted on the inwall of slideway, realize being tightly connected between base plate 10 and skeleton 11.This connected structure improves the interchangeability of equipment compartment 3 base plate 10, more be conducive to the overall tightness of equipment compartment 3, further avoid the possibility in dust storm access arrangement cabin 3, and be more convenient for maintenance and installation, decrease existing bolt install base arrangement in maintenance process because of demounting bolt cause loaded down with trivial details, greatly improve work efficiency.
As shown in Figure 2, skirtboard 9 offers the first ventilation inlet 15 and the first air outlet 16, one or two centralized supply wind device 17, two centralized supply wind devices 17 are installed in equipment compartment 3 and are arranged in equipment compartment 3 in diagonal line.Centralized supply wind device 17 comprises a casing, the sidewall of casing offers air intake vent and at least one exhaust outlet, prerotator and dedusting fan are installed in casing, the air intake vent of centralized supply wind device 17 is tightly connected by wind inlet channel 18 and the first ventilation inlet 15 on skirtboard 9, ensure that the outside air entered from the first ventilation inlet 15 all enters in centralized supply wind device 17, the exhaust outlet of centralized supply wind device 17 is communicated with equipment compartment 3 and is used for drying to the equipment in equipment compartment 3, at the first ventilation inlet 15, air intake vent and the exhaust outlet place of centralized supply wind device 17 are provided with filtering installation.In the bottom of air intake vent filtering installation, dust-collecting cavity is installed, sediment ejection opening is set in the bottom of casing, between the dust mouth of dust-collecting cavity and sediment ejection opening, dedusting fan is set.
Air after filtration is from the exhaust outlet access arrangement cabin 3 of centralized supply wind device 17, flow through each equipment in equipment compartment 3, finally discharge from the first air outlet 16 skirtboard 9, in equipment compartment 3, self-assembling formation forces air flow circuit, pure air is made to flow through whole equipment, for each equipment cooling is lowered the temperature, interior flow field is even, dead angle phenomenon can not be produced, reach desirable radiating effect, avoid local temperature in water-tight equipment cabin 3 higher, efficiently solve the problem of high temperature heat radiation in equipment compartment 3, guarantee that each equipment in equipment compartment 3 normally works for a long time, ensure safe train operation.Meanwhile, each with all picked-ups in equipment compartment 3 of wind devices air intake in equipment compartment 3, by pressure head and the air quantity of actuating spindle flow fan, ensure pressure-fired in equipment compartment 3, significantly decrease the approach in sand and dust access arrangement cabin 3.
As shown in Figure 4 and Figure 5, in the present embodiment, bogie truck 2 is provided with a set of independently air feed system, air feed system is by air feed wind regime 19, air-supply pipeline 20, many groups jetting system 21, 22 compositions, air feed wind regime 19 is by air-supply pipeline 20 and organize jetting system 21 more, 22 connect, air feed wind regime 19 for organizing jetting system 21 to more, 22 provide high pressure air, many groups jetting system 21, on 22 underframe 8 being arranged on car body respectively or bogie truck 2, air-supply pipeline 20 is fixed on underframe 8 or bogie truck 2 by pipe clamp etc., many groups jetting system 21, 22 for respectively to the brake clamp 23 in brake system and brake disc 24 and the track blowing out pressurised air to wheel 25 front.
Air feed wind regime 19 is the air feed reservoir arranged separately, this air feed reservoir be fixedly mounted on vehicle body bottom frame or bogie truck 2 framework 26 on.The specification of air feed reservoir air pressure as required and air quantity are determined, often can join an air feed reservoir by train, also often can save compartment and join an air feed reservoir, also can join multiple air feed reservoir, with respectively to different jetting system 21,22 air feeds in a joint compartment.In order to simplified structure, reduce vehicle weight, air feed wind regime 19 also directly can use the reservoir of configuration originally on vehicle, as total reservoir, braking reservoir, auxiliary reservoir etc., draws air-supply pipeline 20 connect multiple jetting system 21,22 by these reservoirs.
As shown in Figure 4, the front of two wheels 25 above also arranges one group of jetting system 21 respectively, jetting system 21 is for spraying the pressurized air of high speed to the rail level in wheel 25 front, the rail level of wheel 25 front portion forms air curtain, high-speed pressurized air is utilized all to get rid of totally by the foreign matter such as sand and dust, snow of all sizes on track, reduce wheel 25 rolling contact fatigue source, increase the service life of wheel and track, ensure vehicle operating safety, make guideway vehicle more be adapted at high and cold, high wind sandy land operation.
Jetting system 21 is made up of jet pipe 27 and the exhausting plate 28 that is arranged on jet pipe 27 mouth of pipe place, jet pipe 27 and air-supply pipeline 20 are by Flange joint or direct weld together, jet pipe 27 can be fixedly mounted on the bottom of the journal box body 29 of bogie truck as required, can also be arranged on underframe 8 or framework 26, be beneficial to the dead ahead end of jet pipe 27 being caused wheel 25, also can not take the space under car simultaneously.Exhausting plate 28 welds or is bolted on the mouth of pipe place of jet pipe 27, facilitates daily attention.Exhausting plate 28 is provided with one or more exhaust vent, needs to coordinate with the air pressure needed for troubleshooting and air quantity, as arranged a row or two rows, often row arranges multiple, to ensure 5kg/m all the time
3air pressure can not weaken and affecting troubleshooting effect after exhaust vent ejection.
The mouth of pipe place, end of jet pipe 27 causes the dead ahead of wheel 25, and for being obliquely installed, or as shown in Figure 4, exhausting plate 28 is for being obliquely installed, high pressure gas are made to tilt to blow to the raceway surface in wheel 25 dead ahead to vehicle operating direction, area of contact when gas is injected into track can be increased like this, to ensure that gas sprays the effect of troubleshooting.
Because the injection orifice distance track of jetting system 21 has certain distance, when vehicle high-speed runs, the air-flow produced during operation can have an impact to the high pressure draft sprayed by jetting system 21, the interference in air flow produced during in order to avoid running, as shown in Figure 4, arrange one for preventing the baffle plate 30 of interference in air flow in the front windward side of vehicle operating direction (i.e. on) of jet pipe 27 leading section, air-flow when making operation can not the injection of impact to voltage air-flow.The swash plate of baffle plate 30 for turning forward, also can be the L shape structure etc. of flat board or the downward bending arranged downward vertically, it can also be the structure of cover body, the width of baffle plate 30 is slightly larger than the width of jet pipe 27, the side of baffle plate 30 is fixedly connected with by screw with the outer wall of jet pipe 27, its feather edge is lower than the nozzle position of jet pipe 27, but distance rail level has certain altitude, avoids itself and rail level to touch.The air-flow that baffle plate 30 produces when stopping vehicle operating, ensures that the high pressure gas that jetting system 21 sprays directly can spray to track uninterruptedly, and then ensures troubleshooting effect.
Rely on high pressure gas to carry out troubleshooting, without wear part, also can not cause wearing and tearing to track, without the need to periodic replacement, be convenient to safeguard, reduce costs.And foreign matter more small on track can be removed, reduce wheel rolling contact fatigue source, increase the service life of wheel and track, be particularly suitable for the guideway vehicle runed at high wind sandy land.
In the present embodiment, air-supply pipeline 20 being connected in series one again for heating the heating arrangement 31 of air in air-supply pipeline 20, before pressurized air ejection, pressurized air being heated.High-temperature gas is utilized to make the rainwater on track evaporate and snow, ice-out are evaporated, and then dry rail level, improve the friction coefficient between wheel 25 and track, ensure vehicle operating safety.
As shown in Figure 5, jetting system 22 is respectively arranged with at the often group brake clamp 23 of corresponding bogie truck 2 and brake disc 24 position, jetting system 22 adopts jet length far away and fireballing nozzle, by nozzle respectively to brake clamp 23 and brake disc 24 with two-forty blowing out pressurised air, control setup can control jetting system 22 and intermittently carry out purging action to brake clamp 23 and brake disc 24, the pressurized air of high speed is utilized to blow off the ice and snow be deposited on brake clamp 23 and brake disc 24, sand and dust or other dirts, also the high temperature air after can utilizing heating blows to brake clamp 23 and brake disc 24, snow melt and dry effect are played to brake clamp 23 and brake disc 24, slow down brake clamp to a certain extent to freeze to death or improper release, suppress the formation of brake disc surface ice film, reduce brake disc abnormal wear, guarantee the safety that guideway vehicle is runed at high and cold and high wind sandy land or reliability.
Master cock 12 is installed in driver's cab, driver selects operation according to weather condition, as opened blowing pattern, or open heating mode etc., master cock 12 connection control device and control cock, each air feed reservoir is equipped with a control cock, and all control cock of permutation car are all through the unified control of a controller.Controller is used for the opening and closing of the control cock simultaneously controlling different compartment according to instruction, simultaneously can the aperture of adjusting control valve, to regulate the blast of air feed reservoir air-out, and then the air quantity simultaneously controlled from jetting system 21,22 blowing out pressurised air and wind speed.
As shown in Figure 6, roof-mounted air-condition unit 4 comprises housing 32, and housing 32 is fixed on car body top by mount pad.In the inside of housing 32, be separated into evaporation cavity 33, condensation chamber 34, new wind chamber 35 and useless row chamber 36, evaporator, indoor fans etc. are arranged in evaporation cavity 33, condenser, condensation fan, compressors etc. are arranged in condensation chamber 34, condensation air outlet 37 is offered on condensation fan top, condenser is two both sides being arranged on condensation fan respectively, the housing of evaporation cavity 33 offers the indoor air outlet of blowing in compartment and the indoor return air mouth entering air-conditioner set for indoor return air, in new wind chamber 35, new wind blower fan is set, new wind chamber 35 is communicated with evaporation cavity 33 by passage, under the effect of new wind blower fan, the outer fresh air of car enters in new wind chamber 35, enter in evaporation cavity 33 through passage again and mix with indoor return air, through with evaporator heat exchange after send in compartment by indoor air outlet, for lowering the temperature in compartment.The housing in useless row chamber 36 is offered useless row's mouth, the bottom surface of the housing in useless row chamber 36 is offered useless row import, in useless row chamber 36, arranges useless exhaust fan, the waste gas in compartment enters useless row chamber 36 by useless row import under the effect of useless exhaust fan.
A side cover plate 38 is fixedly mounted respectively in the both sides of housing 32, side cover plate 38 is along the elongated setting of length direction of housing 32, side cover plate 38 is offered useless discharge air port 39, new wind entrance 40 and condensation ventilation inlet 41, and new wind entrance 40 and useless 39, air port of discharging are oppositely arranged on two side cover plates 38.Fresh air outside car is under the effect of new wind blower fan, new wind admission space is entered from the new wind entrance 40 side, side cover plate 38, new wind chamber is entered again by the new wind chamber opening on housing 32, fresh air enters in evaporation cavity 33 through passage and mixes with indoor return air, waste gas in compartment enters useless row chamber 36 by useless row import under the effect of useless exhaust fan, discharged outside car by the useless row chamber opening on housing 32 and useless air port 39 of discharging again
At condensation ventilation inlet 41 and useless air port 39 place that discharges, sand grid is set, at new wind entrance 40 place, the first filtering installation is set, first filtering installation comprises a framework and mechanical labyrinth formula filter, mechanical labyrinth formula filter carries out single filter to outside dust laden air, large radius particle is effectively filtered, new wind chamber opening part on the housing in new wind chamber 35 arranges the second filtering installation, arranges the 3rd filtering installation at return air inlet place.Second filtering installation and the 3rd filtering installation adopt the nonwoven fabrics filter screen that filtering accuracy is higher, and the second filtering installation carries out cascade filtration to the new wind air containing a small amount of floating ash, and the 3rd filtering installation filters further to entering the fixed part floating dust of visitor.Adopt this multistage filtering mode, carry out effective filter sand, sand discharge, not only can guarantee the air quality in compartment, and the screen replacing cycle is long, reduce the cost of overhaul.
In the present embodiment, car body 1, bogie truck 2, equipment compartment 3 are all coated with the coating with anti-blown sand performance.According to the experience of the guideway vehicle power application application such as the present Research of coating technology and motor train unit, for the guideway vehicle in high dust storm, the operation of high and cold, high ultraviolet area, coating is at hardness or the resistance to abrasion of resisting pneumatic shear shear force, the ability of sandstone impact force only can not rely on most external coating, only have whole protective system to possess excellent elasticity, wear resisting property and ply adhesion, best protection effect can be reached.
In the present embodiment, the coating structure of side wall 6 comprises wall primer layer, wall putty layer, wall floating coating layer, metope enamelled coating and wall clear coat finish.
Wherein, wall primer layer is as the ground floor of side wall painting design, directly be connected with the base material of side wall 6, its ply adhesion and the antiseptic power of self directly affect the quality of whole painting design, so the selection of priming paint lays particular emphasis on investigate adhesive ability, chemicals-resistant, anti-corrosive properties etc.In the present embodiment, wall primer selects epoxy primer, preferably adopts dried at normal temperature epoxy primer, on the basis reducing energy consumption for drying, stronger penetrablility and adhesive ability are ensured, in the present embodiment to substrate surface, the thickness of wall primer layer is more than 50 μm, is preferably 60 μm.When after Araldite film-forming, owing to containing stable phenyl ring and ehter bond in molecular structure, molecular structure is comparatively tight again, therefore chemical corrosion is had to the mechanical strength of good stability and excellence, as performances such as hard justice, cold-hot and physical shocks, select using two component epoxy paint as priming paint, for base material provides good anticorrosion, alkali resistance function etc., make whole system and base material have good adhesive ability, play the optimum efficiency of paint.
Due to the surface irregularity that the reasons such as aluminum alloy bodywork welding cause, the larger coating of solid content need be adopted to fill, therefore on wall primer layer, wall putty layer is spread, wall putty is in order to remove coated article rugged defect on the surface, it is formulated that base, mass filler and appropriate tinting pigment are painted in putty employing on a small quantity, can fill up the running surface that there is depression local, also can strike off by all surfaces, after wall primer layer parches, be applied over wall primer layer surface.In the present embodiment, Unsaturated polyester putty selected by wall putty, and preferably adopt elasticity lightweight Unsaturated polyester putty, its thickness is preferably 3mm.Elasticity lightweight Unsaturated polyester putty has splendid adhesive ability, resistance to alkalis, corrosion stability and intensity, add the elasticity lightweight Unsaturated polyester putty of hollow polymer microsphere, the air in microballoon is utilized to play buffering pneumatic cushion effect, give conventional Unsaturated polyester putty to be beyond one's reach elasticity and lower density, increase coating surface strength and Coating Durability, improve the permeability resistance of coating.
Wall floating coating layer is the last one coat before wall finiss spraying, and contribute to the smooth and smoothness improving coated article surface, the defect of enclosing wall putty layer, to improve clarity and the aboundance ratio of metope enamelled coating, improves ornamental, increases coating thickness and fastness to water.In the present embodiment, wall floating coating selects polyurethane inter-coat, and preferably adopt acroleic acid polyurethane floating coating, the build of acroleic acid polyurethane floating coating is more than 30 μm, is preferably 40 μm.Acroleic acid polyurethane floating coating can either meet into the requirement of thickness and permeability resistance, again can enclosing wall putty layer defect, has good hiding power, and ensures that wall putty layer and metope enamelled coating have splendid adhesive ability.
Final the presented color effect of side wall 6 of car body is all embodied by metope enamelled coating; therefore; topcoat paint not only will have good colourity and brightness, more requires to have good anti-pollution, ageing-resistant, acid and alkali-resistance, salt spray resistance, protection against the tide and mildew resistance, also requires easy construction; dried coating film is fast; protect light guarantor look good, the features such as good permeability, in a word on the basis having decoration and defencive function concurrently; as color, gloss, texture etc., also need the resistivity in the face of harsh environment.In the present embodiment, wall finiss selects polyurethane finish, and preferably adopt aliphatic acrylic polyurethane finish, the build of aliphatic acrylic polyurethane finish is more than 60 μm, is preferably 60 μm.Be different from traditional aromatics as main film forming substance, metope enamelled coating selects aliphatic compound, present more excellent ageing-resistant, water-fast and chemical resistance, aliphatic polyurethane top coat has the advantages such as film formation at low temp is good, hardness is high, elasticity is good, adhesive ability is good, and the weather resisting property of its excellence and yellowing resistance are the desirable selections of topcoat paint.
Wall clear coat finish is not containing the transparent of pigment or with light flaxen coating, it is the final coating of application, the effect of clear coat finish is not glossiness and ageing-resistant performance that requirement increases surface, more importantly wear-resisting, the impact resistance of painting design is improved, conventional polyurethanes coating due to the existence of a certain amount of hydrophilic radical, fastness to water and mechanical characteristics poor.In the present embodiment, wall clear coat finish selects polyurethane lacquer, and preferably adopt wear-resisting acroleic acid polyurethane varnish, the build of acroleic acid polyurethane varnish is more than 40 μm, is preferably 40 μm.In the present embodiment, increase isocyanate group suitable in the formula Design of wall clear coat finish and the mol ratio of hydroxyl, add the inorganic filler such as aluminium oxide, silicon dioxide simultaneously, and the total addition level controlling antiwear assistant is between 4% ~ 8%, make it have excellent resistance to abrasion, shock-resistant, fastness to water and the elasticity mutually coordinated and hardness, sandstone repeated stock can be reduced, wear away the coating damage caused.
The coating structure of this side wall 6 is selected to be had each coating well flexible composition and has elastomeric painting design, utilizes the impulsive force of the outside sandstone of the recoverable deformation buffer of system.Under the cooperation of aliphatic acrylic polyurethane finish layer and wear-resisting acroleic acid polyurethane clear coat finish, make the painting design ageing-resistant performance of side wall can reach 3000 hours, far exceed 1000 hours of conventional coating.The coating structure of this side wall 6 has good ply adhesion, even if coating damage also can keep the binding force that whole painting design is stronger, prevent damaged expansion, and then significantly improve the anti-blown sand ability of side wall, meet the requirement that guideway vehicle is runed at high wind sandy land.The coating structure of this side wall 6 is except having excellent anti-blown sand performance, also there is excellent resistance to low temperature simultaneously, each coating all can meet the operating needs at-40 DEG C of pole low temperature environments, make guideway vehicle except can also in extremely frigid zones operation in high wind sandy land operation, and there is good ageing-resistant performance due to coating structure, also make guideway vehicle be applicable in high ultraviolet area operation.
The coating structure of roof 7 comprises top prime coat, top floating coating layer, end face enamelled coating and top clear coat finish, and wherein, top prime coat selects epoxy primer, and preferably adopt normal temperature type epoxy primer, thickness is more than 50 μm, is preferably 60 μm; Top floating coating layer selects polyurethane inter-coat, and preferably adopt acroleic acid polyurethane floating coating, thickness is more than 30 μm, is preferably 40 μm; End face enamelled coating selects polyurethane finish, and preferably adopt aliphatic acrylic polyurethane finish, thickness is more than 60 μm, is preferably 60 μm; Top clear coat finish selects polyurethane lacquer, preferably adopts wear-resisting acroleic acid polyurethane varnish, thickness more than 40 μm, is preferably 40 μm.The coating structure selection principle of roof 7 is identical with the coating structure of side wall 6, to improve the anti-blown sand ability of roof 7, low temperature resistant and anti-uv-ray.
Because underframe 8 major part is surrounded by equipment compartment 3, and both sides are also provided with skirtboard, therefore, the coating structure of underframe 8 only comprises underframe priming paint and underframe finish paint, wherein, epoxy primer selected by underframe priming paint, preferably adopts normal temperature type epoxy primer, thickness is more than 60 μm, be preferably 60 μm, underframe finish paint selects polyurethane finish, preferably adopts aliphatic acrylic polyurethane finish, thickness is more than 60 μm, is preferably 60 μm.
The coating structure of bogie truck 2 comprises frame prime coat, frame top coat layer and frame clear coat finish, and this coating structure is sprayed on the parts such as framework, bolt, steel spring of bogie truck 2.As the equipment compartment 3 be arranged at the bottom of car, the environment residing for it and bogie truck 2 are close, and therefore, the outside face of equipment compartment 3 also will carry out spray treatment, and the coating structure of equipment compartment 3 is selected identical with the coating structure of bogie truck 2.
Wherein, frame prime coat selects the epoxy primer with excellent adhesive attraction, and bi-component epoxy primer dry films thickness is more than 60 μm, is preferably 60 μm, utilize epoxy resin as the main film forming substance of frame prime coat, utilize hydroxyl, ehter bond isopolarity group to ensure the adhesive ability good to base material.
Frame top coat layer selects the epoxy elasticity finish paint with good flexility, bi-component thickness epoxy elasticity finish paint build is 100-200 μm, be preferably 150 μm, by carrying out Molecular Design to epoxy resin and curing agent thereof, control the number of the active hydrogen participating in curing reaction, the hydrogen atom in amine molecule is replaced with other chemical reaction radical moiety, the i.e. number of reactive hydrogen atom on portion ends curing agent, with the crosslink density of control loop epoxy resins, increase cured product obtains enough deformabilities to be made thus the elasticity improving epoxy finish, the coating structure of underframe and bogie truck is made to obtain enough deformabilities.
Frame clear coat finish is selected has fluorine carbon varnish that is self-cleaning, low-surface-energy, and two-component fluorine carbon varnish build thickness is 40-60 μm, is preferably 50 μm.Frame clear coat finish adopts the fluorocarbon resin with unique texture, and its fluorine atom distributes in the shape of a spiral along carbochain, and the C-F key of high bond energy protects C-C key completely, makes poly-mer have good ultraviolet-resistant capacity; Add hydrophobic nano SiO simultaneously
2auxiliary agent, synthesizes the self-cleaning structure of similar lotus leaf, with minimal contact angle>=110 ° of water, uses coating surface to have good hydrophobic and low specific inductance capacity, thus makes whole clear coat finish have excellent self-cleaning, ageing-resistant and deicing properties.
The coating structure of this bogie truck 2 has excellent anti-blown sand performance, also there is excellent resistance to low temperature simultaneously, after experience low temperature environment, still there is good elasticity and ply adhesion, there is fluorine carbon clear coat finish that is self-cleaning, low-surface-energy and can reduce gathering of ice and snow, just can remove ice sheet easily by the common mode such as to beat, make guideway vehicle except can high wind sandy land operation all right-40 DEG C in extremely frigid zones operation.
As shown in Figure 7 and Figure 8, in the present embodiment, also bogie truck place is provided with streamlined reefer housing 42, streamlined reefer housing 42 is arranged on the bottom of the rear and front end of equipment ceiling board 10, and streamlined reefer housing 42 protrudes to bogie truck 2 direction, and base plate 10 is welded with mount pad 43, streamlined reefer housing 42 is fixed on mount pad 43 by multiple bolt 44, installing/dismounting is all very convenient, and can not be subject to the restriction of bogie truck 2 position installing space, can transform on the basis of existing car.Like this, vehicle bottom air-flow is under the barrier effect of streamlined reefer housing 42, need before entering bogie truck 2 to get around streamlined reefer housing 42, not only change the direction of local air flow, coordinate with the end plate 5 tilted, advantageously in the flowing of air-flow, and, streamlined reefer housing 42 relatively reduces the interval area between base plate 10 and bogie truck 2, drastically reduce the area the suction quantity of the air-flow entering bogie truck 2 part, the snow be mingled with in air-flow, sand and dust etc. also significantly reduce thereupon, streamlined reefer housing 42 itself also blocks part snow, sand and dust enter bogie truck 2, serve snow defence to greatest extent, anti-dust effect.The base plate 10 of rear and front end all arranges streamlined reefer housing 42, is the requirement in order to meet the different service direction of vehicle.
In order to reach best barrier effect, streamlined reefer housing 42 is along the elongated setting of Width of car body, and the length of streamlined reefer housing 42 is equal to or greater than the wheelspan of two wheels 25 on bogie truck 2, thus the possibility that guarantee reduces snow to greatest extent, sand and dust enter bogie truck 2.In order to improve the flow field of airflow passes streamlined reefer housing 42, the vertical Section Design of streamlined reefer housing 42 is triangle, the base level or slightly downward-sloping of streamlined reefer housing 42, to play the effect of barrier air better, the angle of the nose angle β of streamlined reefer housing 42 is preferably 60 °, nose angle β passes through arc transition, streamlined reefer housing 42 is 200 ~ 220mm in the height H on vertical, width L is 2400mm, the front end edge of streamlined reefer housing 42 and the distance minimum spacing at wheel 25 edge are 160mm, streamlined reefer housing 42 is avoided to contact with the operational process of wheel 25, and reduce bogie truck position bottom opening area, thus decrease and enter snowfall from opening part.
Streamlined reefer housing 42 can adopt solid or hollow metallic article, in order to improve the performance of its snow defence, sand prevention further, in the present embodiment, streamlined reefer housing 42 preferably adopts the capsule shape structure closed be made up of elastomeric material, and the hardness of rubber is moderate, like this, when air-flow flows through streamlined reefer housing 42, the streamlined reefer housing 42 that rubber is made constantly is shaken under the effect of air-flow, avoids the deposition of snow, sand and dust etc. further, reaches the object of snow defence, sand prevention.In addition, adopt capsule shape structure also can alleviate the weight of streamlined reefer housing 42, meet weight-saving requirement.Two setting up and down of mount pad 43, mount pad 43 is structures of an interlayer, tightens fixing in the interlayer of the upper following insertion mount pad 43 of streamlined reefer housing 42 with bolt 44.
As shown in Figure 7, in the present embodiment, the skirtboard 9 of bogie truck 2 rear and front end is respectively provided with the deflecting plate 45 that protrudes from skirtboard 9, the box type construction closed that deflecting plate 45 is roughly elongated in the vertical direction, vertically extended, the vertical height of deflecting plate 45 will cover the indentation, there of the skirtboard 9 of bogie truck 2 position, reduces snow to greatest extent, sand and dust enter bogie truck 2.The horizontal section of deflecting plate 45 is hollow hat-shaped structure, and both sides and the top of hat are arc transition, is substantially made up of three sections of camber lines.Be mingled with snow, sand and dust air-flow high velocity stream through deflecting plate 45 time, under there is at deflecting plate 45 effect of the windward side of radian, produce centnifugal force, because the proportion of snow, sand and dust is heavier than air, and then in the effect of centnifugal force, will avenge and sand and dust and air separation, snow and sand and dust are thrown out of, snow and sand and dust can not be walked around deflecting plate 45 and enter bogie truck 2, only have air then to walk around deflecting plate 45 and enter bogie truck 2 position.
Deflecting plate 45 adopts the metallic articles such as corrosion-resistant steel, and to ensure that it has enough strength and stiffness, deflecting plate 45 is directly welded on skirtboard 9 by the mode of welding, also can be mounted by means of bolts on skirtboard 9.
Under avoiding large eolian action, cause pantograph insulator surface to damage, adopt hard silicon rubber insulator, simultaneously for evading the impact of High aititude, insulator height is increased to 460mm by 400mm.For avoiding the climatic characteristic such as intensive ultraviolet and highly corrosive, the underframe of pantograph adopts carbon steel material, on the basis of original ball blast and rust cleaning, increase acid washing phosphorization technique, and increase acid washing passivation technology for aluminum component, to remove surface and oil contaminant, increase coating adhesion.
In the present embodiment; for realizing lightning strike protection; adopt common grounding system; common grounding system is made up of earth system and equipotential link network; earth system is connected with total electrical grounding terminal clamp; electrical grounding terminal clamp in car body is caused, the electrical grounding terminal clamp of such as electric power distribution cabinet by ground connection main line.Car body is as equalized voltage conductor; by the outside lightning protection (high-voltage equipment box lightning arrester, roof lightning arrester) be in protected space, equipment, the various electric conductor of installation; power supply and communication apparatus link together; between head car and adjacent motor-car, middle two joint trailers, also set up bonding wire connect, guarantee car load car body equipotential.
Set up lightning arrester at roof, the earth point of lightning arrester is directly connected to car body, protects the lightning surge that contact system or pantograph transmit, and ensures that roof high-pressure system parts work in tolerance range.
The surge voltage caused for preventing induced lightening invades circuit in car; cause device damage or cause fire; at GPS, GSM, FM antenna, coaxial cable, AC400V powers, DC100V powers, train network line into the car time; first protect through lightning protection and Surge Protector SPD, then enter relevant device.
Because thunder-strike current injects mainly through car body surface and high-pressure system, therefore reduction car body and the impedance between high-pressure system point of discharge and ground can effectively reduce car body floating potential.Adopt and realize protective grounding and the isolated car load ground system of working earthing based on high frequency decoupling resistor.During lightning impulse, the low sense grounding resistance of high frequency can reduce the lifting of car body current potential, thus reduces the earthy impact caused low-pressure system of floating of car body.
Designed by integrated lightning protection; high-pressure system, ground system, electrical equipment and subsystem have employed safety method; define perfect ground rolling mine protective system; can save because lightning fault occurs that rear withdrawal of train solves the cost of fault; the efficiency of train overhaul can also be improved, reduce the gigameter fault rate of motor train unit.
As mentioned above, plan content given in conjunction with the accompanying drawings and embodiments, can derive similar technical scheme.In every case be the content not departing from technical solutions of the utility model, any simple modification done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. a sand-proof high speed railway car, comprise car body, bogie truck, equipment compartment, pantograph and roof-mounted air-condition unit, described car body is made up of roof, side wall, headwall and underframe, described bogie truck comprise framework, traction drive system, brake system, suspension, wheel to and axle box, it is characterized in that:
Described equipment compartment is made up of the skirtboard of both sides, base plate and skeleton, described skeleton is fixedly mounted on the underframe of described car body, described base plate is connected with skeleton, the bottom of described skirtboard is connected with skeleton, the top of described skirtboard is connected with car body, and the junction between described skirtboard, base plate, skeleton and car body is and is tightly connected;
The coating structure of described side wall comprises wall primer layer, wall putty layer, wall floating coating layer, metope enamelled coating and wall clear coat finish; The coating structure of described roof comprises top prime coat, top floating coating layer, end face enamelled coating and top clear coat finish; The coating structure of described underframe comprises underframe prime coat and underframe top coat layer; The coating structure of described bogie truck and equipment compartment comprises frame prime coat, frame top coat layer and frame clear coat finish;
Described bogie truck is provided with and organizes jetting system more, described jetting system is connected with air feed wind regime by air-supply pipeline, and the described jetting system of many groups is used for spraying pressurized air to the track in brake system and/or wheel front.
2. sand-proof high speed railway car according to claim 1, is characterized in that: be serially connected with on described air-supply pipeline for adding the required compressed-air actuated heating arrangement of thermojet.
3. sand-proof high speed railway car according to claim 1, is characterized in that: be centered around the equipment ceiling board arranged around described bogie truck, its rear and front end tilts to bogie truck direction from bottom to top.
4. sand-proof high speed railway car according to claim 1, is characterized in that: the bottom section bar of described skirtboard is connected by elongated folding with between described skeleton, is connected with many for supporting the safety harness of described skirtboard between described skirtboard and car body.
5. sand-proof high speed railway car according to claim 4, is characterized in that: safe latch is fixedly connected with one by two elastic force cam locks with between car body on the top of described skirtboard.
6. sand-proof high speed railway car according to claim 1, it is characterized in that: described roof-mounted air-condition unit comprises housing, in the outside of housing, side cover plate is installed, housing offers air outlet, return air inlet and new wind chamber opening, described side cover plate offers new wind entrance, respectively filtering installation is installed at described new wind entrance, new wind chamber opening and return air inlet place.
7. sand-proof high speed railway car according to claim 1, it is characterized in that: on described skirtboard, offer the first ventilation inlet and the first air outlet, centralized supply wind device is installed in described equipment compartment, the air intake vent of described centralized supply wind device is communicated with the first ventilation inlet on described skirtboard by wind inlet channel, and the exhaust outlet of described centralized supply wind device is communicated with equipment compartment and is used for drying to the equipment in equipment compartment.
8. sand-proof high speed railway car according to claim 1, it is characterized in that: the wall primer of described side wall, wall putty, wall floating coating, wall finiss and wall varnish are respectively epoxy primer, Unsaturated polyester putty, polyurethane inter-coat, polyurethane finish and polyurethane lacquer, the top priming paint of described roof, top floating coating, end face paint and top varnish are respectively epoxy primer, polyurethane inter-coat, polyurethane finish and polyurethane lacquer; Underframe priming paint and the underframe finish paint of described underframe are respectively epoxy primer and polyurethane finish, and the frame priming paint of described bogie truck and equipment compartment, frame finish paint and frame varnish are respectively epoxy primer, epoxy elasticity finish paint and fluorine carbon varnish.
9. sand-proof high speed railway car according to claim 1, is characterized in that: respectively arrange a streamlined reefer housing protruded to described bogie truck direction in the rear and front end along vehicle operating direction of described equipment ceiling board.
10. sand-proof high speed railway car according to claim 1, is characterized in that: on the skirtboard of described bogie truck rear and front end, be respectively provided with the deflecting plate that protrudes from described skirtboard.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769613.7U CN204279441U (en) | 2014-12-09 | 2014-12-09 | Sand-proof high speed railway car |
| RU2017108865A RU2649284C1 (en) | 2014-12-09 | 2015-11-12 | High-speed railway car, protected from wind and sand |
| TR2017/04151A TR201704151T1 (en) | 2014-12-09 | 2015-11-12 | Wind-resistant and sand-resistant high-speed rail vehicle. |
| PCT/CN2015/094420 WO2016091046A1 (en) | 2014-12-09 | 2015-11-12 | Wind-proof and sand-proof high speed railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769613.7U CN204279441U (en) | 2014-12-09 | 2014-12-09 | Sand-proof high speed railway car |
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| Publication Number | Publication Date |
|---|---|
| CN204279441U true CN204279441U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420769613.7U Active CN204279441U (en) | 2014-12-09 | 2014-12-09 | Sand-proof high speed railway car |
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| CN (1) | CN204279441U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527676A (en) * | 2014-12-09 | 2015-04-22 | 南车青岛四方机车车辆股份有限公司 | Sand-proof high-speed railway vehicle |
| WO2016091046A1 (en) * | 2014-12-09 | 2016-06-16 | 中车青岛四方机车车辆股份有限公司 | Wind-proof and sand-proof high speed railway vehicle |
| CN107804329A (en) * | 2017-10-24 | 2018-03-16 | 中车长春轨道客车股份有限公司 | Train apparatus cabin anticreep ventilation skirtboard mechanism |
| CN114616159A (en) * | 2019-10-31 | 2022-06-10 | 西门子交通有限公司 | Vehicle with air outlet opening |
-
2014
- 2014-12-09 CN CN201420769613.7U patent/CN204279441U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527676A (en) * | 2014-12-09 | 2015-04-22 | 南车青岛四方机车车辆股份有限公司 | Sand-proof high-speed railway vehicle |
| WO2016091046A1 (en) * | 2014-12-09 | 2016-06-16 | 中车青岛四方机车车辆股份有限公司 | Wind-proof and sand-proof high speed railway vehicle |
| CN104527676B (en) * | 2014-12-09 | 2017-10-31 | 中车青岛四方机车车辆股份有限公司 | Sand-proof high speed railway car |
| CN107804329A (en) * | 2017-10-24 | 2018-03-16 | 中车长春轨道客车股份有限公司 | Train apparatus cabin anticreep ventilation skirtboard mechanism |
| CN114616159A (en) * | 2019-10-31 | 2022-06-10 | 西门子交通有限公司 | Vehicle with air outlet opening |
| CN114616159B (en) * | 2019-10-31 | 2023-08-04 | 西门子交通有限公司 | Vehicle with air outlet opening |
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| C14 | Grant of patent or utility model | ||
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| C56 | Change in the name or address of the patentee | ||
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Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: Chengyang District of Qingdao city Jihongtan town Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |