CN104527677A - Sand-proof railway vehicle - Google Patents
Sand-proof railway vehicle Download PDFInfo
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- CN104527677A CN104527677A CN201410718224.6A CN201410718224A CN104527677A CN 104527677 A CN104527677 A CN 104527677A CN 201410718224 A CN201410718224 A CN 201410718224A CN 104527677 A CN104527677 A CN 104527677A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/08—Sides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/12—Roofs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F1/00—Underframes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a sand-proof railway vehicle. The sand-proof railway vehicle comprises a vehicle body, a bogie, a device chamber and an air conditioning ventilating system; the vehicle body comprises an end wall, a side wall, a roof and a bottom frame; a coating structure of the sidewall comprises a primer layer, a putty layer, a medium painting layer, a finishing paint layer and a varnish layer; the coating structure of the roof comprises a primer layer, a medium painting layer, a finishing paint layer and a varnish layer; the coating structure of the bottom frame comprises a primer layer and a finishing paint layer. According to the sand-proof railway vehicle, high-flexibility coatings form an elastic coating system for the vehicle body, so that the sand-proof railway vehicle is outstanding in outer surface wear resistance, remarkable in ageing resistance, and high in interlayer attaching force and cold resistance; the external stand impact force can be buffered under the recoverable deformation effect of the system, and therefore, the railway vehicle is adapted to the high-sand regional environment and can also be applied to operation in a high cold and high ultraviolet regions.
Description
Technical field
The present invention relates to a kind of guideway vehicle, particularly a kind of sand-proof guideway vehicle being suitable for runing at high wind sandy land, belongs to guideway vehicle manufacturing technology field.
Background technology
The car coating system of the guideway vehicles such as existing motor train unit comprises side wall except dress, roof application, underframe and bogie truck application, wherein, side wall application generally comprises priming paint, Puttying, floating coating and finish paint, the thickness of each layer be approximately 60 μm, 3mm, 40 μm and 60 μm; Roof application generally comprises priming paint, bituminous paint and finish paint, and the thickness of each layer is approximately 60 μm, 3mm and 60 μm; Underframe application comprises priming paint, bituminous paint and finish paint, and the thickness of each layer is approximately 60 μm, 3mm and 60 μm; Bogie truck application comprises priming paint and finish paint, and the thickness of each layer is 60 μm.
The guideway vehicle suitable environment temperature such as existing motor train unit are+40 DEG C ~-25 DEG C, and vehicle is under high speed operation state, pneumatic shear shear force, sandstone impact force are multiplied to the damage of car body outside face, particularly run the area in high dust storm, above-mentioned painting design all cannot meet the requirement of sand-proof in elasticity, wear resisting property, ageing-resistant performance and ply adhesion etc.
In addition, if guideway vehicle is runed under-40 DEG C of psychro-environments, ice and snow accumulates in the component surface such as journal box body, traction electric machine, framework of bogie truck, increase when ice-snow thickness or damage may be caused to electric system in melting process, and then bringing potential safety hazard, simultaneously, under low-temperature condition, material self flexility declines, and fragility improves, the test that vehicle external surface painting design will accept can to recover in access tunnel process deformation and brings.
Summary of the invention
Main purpose of the present invention is to solve the problem and deficiency, provides one to have the husky performance of excellent wind-proof, is adapted at the sand-proof guideway vehicle of high wind sandy land operation.
For achieving the above object, technical scheme of the present invention is:
A kind of sand-proof guideway vehicle, comprise car body, bogie truck, equipment compartment, air conditioner ventilating system, described car body is made up of headwall, side wall, roof and underframe, and 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.
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.
Further, the thickness of wall primer layer is more than 50 μm, and the thickness of wall putty layer is 3mm, and the thickness of wall floating coating layer is more than 30 μm, and the thickness of metope enamelled coating is more than 60 μm, and the thickness of wall clear coat finish is more than 40 μm.
Further, described roof top priming paint, top floating coating, end face paint and top varnish be respectively epoxy primer, polyurethane inter-coat, polyurethane finish and polyurethane lacquer.
Further, the thickness of top prime coat is more than 50 μm, and the thickness of top floating coating layer is more than 30 μm, and the thickness of end face enamelled coating is more than 60 μm, and the thickness of top clear coat finish is more than 40 μm.
Further, the underframe priming paint of described underframe and underframe finish paint are respectively epoxy primer and polyurethane finish.
Further, the thickness of underframe prime coat and underframe top coat layer is more than 60 μm.
Further, the coating structure of described bogie truck comprises frame prime coat, frame top coat layer and frame clear coat finish.
Further, the frame priming paint of described bogie truck, frame finish paint and frame varnish are respectively epoxy primer, epoxy elasticity finish paint and fluorine carbon varnish.
Further, the thickness of frame prime coat is more than 60 μm, and the thickness of frame top coat layer is 100-200 μm, and the thickness of frame clear coat finish is 40-60 μm.
To sum up content, a kind of sand-proof guideway vehicle of the present invention, by selecting, there is better flexible coating composition car body elasticity painting design, this car coating system has good overall flexibility, excellent outside face resistance to abrasion, remarkable ageing-resistant performance and good ply adhesion, utilize the outside Stone Shock power of the recoverable deformation buffer of system, simultaneously, this painting design also has excellent cold-resistant characteristic, make the guideway vehicles such as the motor train unit of this painting design of car body external equipment not only can be adapted to high wind sandy land environmental quality, also can be applicable to high and cold, high ultraviolet area operation.
Accompanying drawing explanation
Fig. 1 is guideway vehicle structural representation of the present invention
Fig. 2 is air feed system structural representation one of the present invention;
Fig. 3 is streamlined reefer housing package assembly schematic diagram of the present invention;
Fig. 4 is streamlined reefer housing structure section figure of the present invention.
As shown in Figures 1 to 4, car body 1, bogie truck 2, equipment compartment 3, air conditioner ventilating system 4, headwall 5, side wall 6, roof 7, underframe 8, air feed wind regime 9, air-supply pipeline 10, jetting system 11, framework 12, journal box body 13, heating arrangement 14, wheel 15, jet pipe 16, exhausting plate 17, baffle plate 18, deflecting plate 19, skirtboard 20, bolt 21, streamlined reefer housing 22, base plate 23, mount pad 24.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As shown in Figure 1, a kind of sand-proof guideway vehicle provided by the invention, comprises the car body 1 of aluminum alloy, bogie truck 2, equipment compartment 3, air conditioner ventilating system 4 etc.
Wherein, car body 1 comprises headwall 5, side wall 6, roof 7 and underframe 8.Bogie truck 2 comprises framework, traction system, brake system, primary spring, secondary suspension system, axletree, axle box, wheel equity, traction system comprises the parts such as traction electric machine, gear case, brake system comprises the parts such as brake clamp and brake disc, air conditioner ventilating system 4 comprises the roof-mounted air-condition unit being arranged on roof, air after process is sent into the temperature and humidity regulating guest room in guest room by air-conditioner set by air channel, discharged outside car by waste gas simultaneously.
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 SiO2 auxiliary agent simultaneously, synthesize the self-cleaning structure of similar lotus leaf, with minimal contact angle >=110 ° of water, use coating surface to have good hydrophobic and low specific inductance capacity, thus make 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.
For ensureing ply adhesion excellent in wind sand environment, each coating of above-mentioned side wall 6, roof 7, underframe 8, bogie truck 2 and equipment compartment 3 all requires grinding process before construction, coating polishing adopts pneumatic or electric polishing machine to coordinate the mode of corresponding order number sand paper, increase each coating roughness, improve inter-layer bonding force.For reaching aesthetic, while guarantee polishing effect, select the sand paper of different roughness according to the difference of coating.Prime coat polishing uses (80 ~ 120) # sand paper, and polishing is extremely without big particle, and there is obvious polishing scratch on surface; Putty layer polishing uses (120 ~ 180) # sand paper, removes secretly stupefied, protruding, increases surface evenness; The polishing of floating coating layer, top coat layer adopts (240 ~ 320) # sand paper and (320 ~ 400) # sand paper respectively, polishing surface uniform, tarnish.
Detect the single coating in above-mentioned side wall 6, roof 7, underframe 8, bogie truck 3 and equipment compartment 3 painting design and whole painting design bending property at normal temperatures, impact resistance, ply adhesion, the convex experimental performance of cup and wear resisting property, after following special test method test, painting design bending property, impact resistance, ply adhesion, the convex experimental performance of cup and wear resisting property are all not less than 80% of normal temperature performance.
The national standard of current coating resistance to low temperature is not also directed to guideway vehicle completely, can reference only have JG-T25-1999 " building coating coating freeze-thawing resistant cyclicity determination method ", wherein do not have clear stipulaties for cycle number, lowest temperature is also only-20 DEG C.
The concrete testing sequence that the present embodiment provides is as follows:
(1) model of painting design is made according to above-mentioned design standard.
(2) by model in temperature (23 ± 2) DEG C, maintenance 7d in humidity (50 ± 5) % environment, the chemical reaction mixing A, B component completely in coating proceeds to metastable state, and each side index such as crosslink density, hardness of coating reaches optimum performance.
(3) model is placed in-40 DEG C of environment and keeps 6h.
The object of this step allows coating place in the low temperature environment under particular requirement, the existing car cold operation of simulation; Train is alternate run in the temperature environment that low temperature, normal temperature etc. are different, and low temperature is to the process of normal temperature simultaneously, and each structure experience volume-diminished in coating, to the process expanded, crystallization even occurs to the state variation of melting.
(4) be naturally warming up to normal temperature environment again, keep 12h, to simulate existing car normal temperature operation process.
(5) repeat the step of (2)-(4), repeat 20 times altogether, coating structure without efflorescence, ftracture, peel off, bubble, the phenomenon such as variable color.
After single temperature shock cycle, performance did not lose efficacy, and can not objectively react the performance change being in car operation in high and low temperature alternative environment for a long time, and therefore, this testing sequence repeats above-mentioned cyclic process 20 times, with the existing car operating environment of real simulation, and the accuracy of warranty test.
In order to improve the anti-blown sand of guideway vehicle, low temperature resistant performance further, as shown in Figure 2, in the present embodiment, bogie truck 2 is provided with a set of independently air feed system.Air feed system is made up of air feed wind regime 9, air-supply pipeline 10, many group jetting system 11, air feed wind regime 9 by air-supply pipeline 10 with organize jetting system 11 more and be connected, air feed wind regime 9 is for providing high pressure air to many group jetting system 11, on the underframe 8 that many groups jetting system 11 is arranged on car body respectively or bogie truck 2, air-supply pipeline 10 is fixed on underframe 8 or bogie truck 2 by pipe clamp etc.
Air feed wind regime 9 is the air feed reservoir arranged separately, this air feed reservoir be fixedly mounted on vehicle body bottom frame or bogie truck 2 framework 12 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 in a joint compartment, with respectively to different jetting system 11 air feeds.In order to simplified structure, reduce vehicle weight, air feed wind regime 9 also directly can use the reservoir of configuration originally on vehicle, as total reservoir, braking reservoir, auxiliary reservoir etc., draw air-supply pipeline 10 by these reservoirs, connect multiple jetting system 11, to the track blowing out pressurised air in wheel 15 front.
As shown in Figure 2, the front of two wheels 15 above also arranges one group of jetting system 11 respectively, jetting system 11 is for spraying the pressurized air of high speed to the rail level in wheel 15 front, the rail level of wheel 15 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 15 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 11 is made up of jet pipe 16 and the exhausting plate 17 that is arranged on jet pipe 16 mouth of pipe place, jet pipe 16 and air-supply pipeline 10 are by Flange joint or direct weld together, jet pipe 16 can be fixedly mounted on the bottom of the journal box body 13 of bogie truck as required, can also be arranged on underframe 8 or framework 12, be beneficial to the dead ahead end of jet pipe 16 being caused wheel 15, also can not take the space under car simultaneously.Exhausting plate 17 welds or is bolted on the mouth of pipe place of jet pipe 16, facilitates daily attention.Exhausting plate 17 is provided with one or more exhaust vent, need 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 that the air pressure of 5kg/m3 affects troubleshooting effect weakening after exhaust vent ejection all the time.
The mouth of pipe place, end of jet pipe 16 causes the dead ahead of wheel 15, and for being obliquely installed, or as shown in Figure 2, exhausting plate 17 is for being obliquely installed, high pressure gas are made to tilt to blow to the raceway surface in wheel 15 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 11 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 11, the interference in air flow produced during in order to avoid running, as shown in Figure 2, arrange one for preventing the baffle plate 18 of interference in air flow in the front windward side of vehicle operating direction (i.e. on) of jet pipe 16 leading section, air-flow when making operation can not the injection of impact to voltage air-flow.The swash plate of baffle plate 18 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 18 is slightly larger than the width of jet pipe 16, the side of baffle plate 18 is fixedly connected with by screw with the outer wall of jet pipe 16, its feather edge is lower than the nozzle position of jet pipe 16, but distance rail level has certain altitude, avoids itself and rail level to touch.The air-flow that baffle plate 18 produces when stopping vehicle operating, ensures that the high pressure gas that jetting system 11 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 10 being connected in series one again for heating the heating arrangement 14 of air in air-supply pipeline 10, before pressurized air ejection, pressurized air being heated.Heating arrangement 14 is only serially connected on the air-supply pipeline 10 before jetting system 11, high-temperature gas after heating is blowed to track, 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 15 and track, ensure vehicle operating safety.
In driver's cab, master cock is installed, driver selects operation according to weather condition, as opened blowing pattern, or open heating mode etc., master cock 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 11 blowing out pressurised air and wind speed.
As shown in Figure 3 and Figure 4, in the present embodiment, also bogie truck place is provided with streamlined reefer housing 22, streamlined reefer housing 22 is arranged on the bottom of the rear and front end of equipment ceiling board 23, and streamlined reefer housing 22 protrudes to bogie truck 1 direction, and base plate 23 is welded with mount pad 24, streamlined reefer housing 22 is fixed on mount pad 24 by multiple bolt 21, 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 22, need before entering bogie truck 2 to get around streamlined reefer housing 22, 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 22 relatively reduces the interval area between base plate 23 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 22 itself also blocks part snow, sand and dust enter bogie truck 2, serve snow defence to greatest extent, anti-dust effect.The base plate 23 of rear and front end all arranges streamlined reefer housing 22, is the requirement in order to meet the different service direction of vehicle.
In order to reach best barrier effect, streamlined reefer housing 22 is along the elongated setting of Width of car body, and the length of streamlined reefer housing 22 is equal to or greater than the wheelspan of two wheels 15 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 22, the vertical Section Design of streamlined reefer housing 22 is triangle, the base level or slightly downward-sloping of streamlined reefer housing 22, to play the effect of barrier air better, the angle of the nose angle β of streamlined reefer housing 22 is preferably 60 °, nose angle β passes through arc transition, streamlined reefer housing 22 is 200 ~ 220mm in the height H on vertical, width L is 2400mm, the front end edge of streamlined reefer housing 22 and the distance minimum spacing at wheel 15 edge are 160mm, streamlined reefer housing 22 is avoided to contact with the operational process of wheel 15, and reduce bogie truck position bottom opening area, thus decrease and enter snowfall from opening part.
Streamlined reefer housing 22 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 22 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 22, the streamlined reefer housing 22 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 22, meet weight-saving requirement.Two setting up and down of mount pad 24, mount pad 24 is structures of an interlayer, tightens fixing in the interlayer of the upper following insertion mount pad 24 of streamlined reefer housing 22 with bolt 21.
As shown in Figure 3, in the present embodiment, the skirtboard 20 of bogie truck 2 rear and front end is respectively provided with the deflecting plate 19 that protrudes from skirtboard 20, the box type construction closed that deflecting plate 19 is roughly elongated in the vertical direction, vertically extended, the vertical height of deflecting plate 19 will cover the indentation, there of the skirtboard 20 of bogie truck 2 position, reduces snow to greatest extent, sand and dust enter bogie truck 2.The horizontal section of deflecting plate 19 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 19 time, under there is at deflecting plate 19 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 19 and enter bogie truck 2, only have air then to walk around deflecting plate 19 and enter bogie truck 2 position.
Deflecting plate 19 adopts the metallic articles such as corrosion-resistant steel, and to ensure that it has enough strength and stiffness, deflecting plate 19 is directly welded on skirtboard 20 by the mode of welding, also can be mounted by means of bolts on skirtboard 20.
As mentioned above, plan content given by reference to the accompanying drawings, can derive similar technical scheme.In every case be the content not departing from technical solution of the present invention, any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a sand-proof guideway vehicle, comprise car body, bogie truck, equipment compartment, air conditioner ventilating system, described car body is made up of headwall, side wall, roof and underframe, it is characterized in that: 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.
2. sand-proof guideway vehicle according to claim 1, 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.
3. sand-proof guideway vehicle according to claim 2, it is characterized in that: the thickness of wall primer layer is more than 50 μm, the thickness of wall putty layer is 3mm, and the thickness of wall floating coating layer is more than 30 μm, the thickness of metope enamelled coating is more than 60 μm, and the thickness of wall clear coat finish is more than 40 μm.
4. sand-proof guideway vehicle according to claim 1, is characterized in that: 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.
5. sand-proof guideway vehicle according to claim 4, is characterized in that: the thickness of top prime coat is more than 50 μm, and the thickness of top floating coating layer is more than 30 μm, and the thickness of end face enamelled coating is more than 60 μm, and the thickness of top clear coat finish is more than 40 μm.
6. sand-proof guideway vehicle according to claim 1, is characterized in that: underframe priming paint and the underframe finish paint of described underframe are respectively epoxy primer and polyurethane finish.
7. sand-proof guideway vehicle according to claim 6, is characterized in that: the thickness of underframe prime coat and underframe top coat layer is more than 60 μm.
8. sand-proof guideway vehicle according to claim 1, is characterized in that: the coating structure of described bogie truck comprises frame prime coat, frame top coat layer and frame clear coat finish.
9. sand-proof guideway vehicle according to claim 8, is characterized in that: the frame priming paint of described bogie truck, frame finish paint and frame varnish are respectively epoxy primer, epoxy elasticity finish paint and fluorine carbon varnish.
10. sand-proof guideway vehicle according to claim 9, is characterized in that: the thickness of frame prime coat is more than 60 μm, and the thickness of frame top coat layer is 100-200 μm, and the thickness of frame clear coat finish is 40-60 μm.
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