CN112693480A - Rail vehicle sanding device with double pneumatic sanding units - Google Patents
Rail vehicle sanding device with double pneumatic sanding units Download PDFInfo
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- CN112693480A CN112693480A CN202110141637.2A CN202110141637A CN112693480A CN 112693480 A CN112693480 A CN 112693480A CN 202110141637 A CN202110141637 A CN 202110141637A CN 112693480 A CN112693480 A CN 112693480A
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- 239000004576 sand Substances 0.000 claims description 183
- 244000035744 Hura crepitans Species 0.000 claims description 37
- 238000005507 spraying Methods 0.000 claims description 16
- 238000003892 spreading Methods 0.000 claims description 15
- 238000009423 ventilation Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000005245 sintering Methods 0.000 claims description 5
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 9
- 230000005484 gravity Effects 0.000 description 6
- 238000000926 separation method Methods 0.000 description 4
- 238000005488 sandblasting Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
- B61C15/08—Preventing wheel slippage
- B61C15/10—Preventing wheel slippage by depositing sand or like friction increasing materials
- B61C15/102—Preventing wheel slippage by depositing sand or like friction increasing materials with sanding equipment of mechanical or fluid type, e.g. by means of steam
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
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- Road Paving Machines (AREA)
Abstract
The invention relates to the technical field of rail transit equipment, and particularly discloses a rail vehicle sanding device with double pneumatic sanding units, which comprises a box body, a first sanding unit, a second sanding unit and a sanding pipeline component, wherein a first cavity and a second cavity are arranged in the box body, the first sanding unit and the second sanding unit are arranged at the lower end of the box body and are respectively connected with the first cavity and the second cavity, and the lower ends of the first sanding unit and the second sanding unit are respectively connected with the sanding pipeline component.
Description
Technical Field
The invention relates to the technical field of rail transit equipment.
Background
The sanding device is used for sanding the tread of the wheel, and aims to increase the adhesion coefficient between the wheel and the steel rail, so that the adhesion is increased to improve the traction and braking force of the vehicle. The sanding device is generally arranged near an axle box of a bogie frame and mainly comprises a sanding unit, a sanding electric air valve, a sand box body, a ventilation pipeline, a temperature and humidity sensor and the like. When the train with the lower wheel-rail adhesion coefficient is detected to slide, a driver operates the sanding electro-pneumatic valve, under the action of compressed air, gravel in the sand box enters the sanding pipe through the sanding unit, and sand is applied to the rail surface to increase the wheel-rail adhesion coefficient.
At present, the existing sanding mode has two types of pressure difference and gravity type, the pressure difference generally requires 3-4bar for the air inlet pressure, and in order to improve the response speed, an air storage cylinder can be additionally arranged or a high-power air compressor is adopted for realizing the sanding mode. The gravity type sanding is realized by utilizing the gravity of gravel and combining the design structures of a slope type sanding box and a funnel-shaped sanding opening. The sand spreading device is internally provided with temperature and humidity sensors which sense the state of the sand in the sand box so as to control whether the equipped heating device is started or not and prevent the sand from hardening. The sand level sensor arranged at the bottom of the sand box can detect the sand amount so as to supplement sand in time. The two main sanding modes can meet the requirements, and the purposes of improving the adhesion coefficient between the wheel rails and improving the running quality of the train are achieved. However, the prior sanding device still has some problems, such as the high-power wind pressure machine is needed to be equipped in the differential sanding device, so that the installation space and the sealing performance are extremely high. The sanding rate of the device is not easy to meet the requirements of rapid adjustment and accurate control of a train under two conditions of high-speed braking or low-speed starting, and the gravity type sanding also has the problems of easy blockage of a sanding outlet, difficult control of sanding amount and the like. When flowing out gravel heating in the sand box in addition, heating device's heating efficiency also remains to be improved, and also difficult directly perceived to the incasement memory sand volume in the sand supplementation operation in-process.
Disclosure of Invention
In order to solve the problems of the conventional sanding device for the railway vehicle, the invention provides the sanding device for the railway vehicle with double pneumatic sanding units.
The technical scheme adopted by the invention for realizing the purpose is as follows: the utility model provides a rail vehicle sanding device with two pneumatic sanding units, includes box, first sanding unit, second sanding unit and sand outlet pipe way part, the inside of box is equipped with first cavity and second cavity, first sanding unit and second sanding unit all establish the lower extreme of box and respectively with first cavity and second cavity are connected, the lower extreme of first sanding unit and second sanding unit all with sand outlet pipe way part connects.
The box includes box and lower box, the appearance of going up the box is the cuboid, the appearance of box is for leaking hopper-shaped down, going up box top bilateral symmetry be provided with two sand box linkage, sand box linkage is used for being connected with rail vehicle, sand box linkage is including hanging lug and lug strengthening rib, the hypoplastron welding that hangs the lug is in the top of going up the box, two round holes are seted up to the upper plate front and back symmetry that hangs the lug, bolt group and radials type bolt cover are installed to the round hole department of upper plate, the welding of the symmetry axis direction along two round holes between the upper and lower plate that hangs the lug strengthening rib.
The box is equipped with two sand inlets that correspond respectively with first cavity and second cavity, the box is in sand inlet department is provided with into sand inlet sealing device, sand inlet sealing device includes sand tank lid, lid mount pad and lid inner skleeve, the sand tank lid outside is equipped with the boss of taking the round hole along the axis, installation gasket and holding screw on the boss, the sand tank lid with be equipped with the elasticity rubber ring between the lid mount pad, the bottom installation elasticity ring of lid mount pad, inside adjustment seat, spring and the thrust gasket of being equipped with of lid inner skleeve, the adjustment seat with the boss direct contact of sand tank lid, the cylinder hole on the sand tank lid is connected with the pull rod seat, round notch is seted up at the pull rod seat middle part and is connected with the pull rod, be provided with rings on the pull rod.
The box is equipped with two respectively with the sand volume perspective part that first cavity and second cavity correspond, sand volume perspective part includes perspective window mount pad and perspective window, the perspective window mount pad sets up in oval notch department on box upper portion, the perspective window is embedded into through reamed hole bolt group respectively in the perspective window mount pad.
The first sanding unit and the second sanding unit are identical in structure, the first sanding unit comprises a low-position sand inlet cap, a low-position sand inlet pipe, an air supply pipe, a pneumatic regulating valve, a sand outlet cap, a high-position sand inlet pipe and a high-position sand inlet cap, the low-position sand inlet cap and the high-position sand inlet cap are arranged inside the box body, the lower end of the low-position sand inlet cap is provided with the low-position sand inlet pipe, the lower end of the low-position sand inlet pipe penetrates through the bottom of the box body and is connected with the sand outlet cap, the lower end of the high-position sand inlet cap is provided with the high-position sand inlet pipe, the lower end of the high-position sand inlet pipe penetrates through the bottom of the box body and is connected with the sand outlet cap through an internal pipeline, the sand outlet cap is arranged below the first sanding unit through an elastic gasket, the internal pipeline is provided with a sand cleaning plug, the air supply pipe is a tee pipe piece, one end of the air supply pipe is provided with the air flow regulating valve, and the other two ends of the air supply pipe are respectively connected, the pneumatic sand spraying device is characterized in that a pneumatic adjusting valve is arranged at the other end of the pneumatic air conveying pipeline, a sintering plate is arranged at the joint of the first sand spraying unit and the second sand spraying unit with the box body, and the first sand spraying unit and the second sand spraying unit are both provided with temperature sensors.
Go out sand pipeline part including two sets ofly respectively with go out sand pipe, reducing valve and the connection ring that first sanding unit and second sanding unit correspond, go out sand pipe one end with it emits through to go out sand connect the ring and connect, go out the installation of the sand pipe other end the reducing valve is two sets of the reducing valve passes through connecting device and goes out the sand mouth and be connected, the connecting device outside is equipped with protecting sheathing.
First sanding unit all is equipped with heating device and connected mode the same with second sanding unit side, heating device includes heat-resisting hose and heater, the heater passes through heat-resisting hose with first sanding unit connects, heat-resisting hose both ends all are equipped with hose sleeve and cross side stifled, heat-resisting hose both ends all through fixation nut with first sanding unit with heater connection.
The sand spraying device is characterized in that an air inlet pipeline and a ventilation pipeline are arranged outside the box body, the air inlet pipeline is connected with one end of the ventilation pipeline behind the box body through a pipeline fixing device at the top of the box body, the pipeline fixing device is connected with the box body through a screw, the ventilation pipeline is connected with the box body through two fixing seats which are arranged at the back of the box body along a symmetrical axis and are installed through bolts, the other end of the ventilation pipeline is connected with a gas pipeline three-way pipe, and the gas pipeline three-way pipe is respectively connected with the first sand spraying unit and the second sand spraying unit.
All be equipped with the elastic separation board of slope type in first cavity and the second cavity, the round hole department of elastic separation board below boss is equipped with supporting spring, humidity transducer is all installed to first cavity and second cavity lateral wall.
The bottom of the box body is welded with a box body bottom plate, the box body bottom plate is provided with an elastic gasket between the first sanding unit and the second sanding unit, and the box body bottom plate and the elastic gasket are connected with the first sanding unit and the second sanding unit through stud bolts.
The rail vehicle sanding device with the double pneumatic sanding units is provided with the two independent sanding units which are respectively used for sanding during high-speed braking or low-speed starting, so that the requirement on the pressure of an air source is reduced, the adjusting range of an air flow regulator is narrowed, the control capability of the sanding speed is improved, the energy is saved, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a rear view of the present invention;
FIG. 4 is a cross-sectional view taken at A of FIG. 2 in accordance with the present invention;
FIG. 5 is an exploded view of the sand inlet assembly of the present invention;
FIG. 6 is an enlarged cross-sectional view taken at C of FIG. 2 in accordance with the present invention;
FIG. 7 is an enlarged cross-sectional view taken at B of FIG. 2 in accordance with the present invention;
fig. 8 is an enlarged view of a portion of the invention at i in fig. 4.
In the figure: 1. the sand box comprises a sand box suspension device, 1-1 parts of a sand box suspension device, bolt groups, 1-2 parts of a spoke plate type bolt cover, 1-3 parts of a suspension lifting lug, 1-4 parts of a lifting lug reinforcing rib, 2 parts of a sand inlet sealing device, 2-1 parts of a set screw, 2-2 parts of a gasket, 2-3 parts of a sand box cover, 2-4 parts of an elastic rubber ring, 2-5 parts of a cover body mounting seat, 2-6 parts of an elastic circular ring, 2-7 parts of an adjusting seat, 2-8 parts of a spring, 2-9 parts of a thrust gasket, 2-10 parts of a cover inner sleeve, 2-11 parts of a lifting ring, 2-12 parts of a pull rod, 2-13 parts of a pull rod seat, 3 parts of a sand amount perspective part, 3-1 parts of a hole-making bolt group, 3-2 parts of a perspective window mounting seat, 3-3 parts of a perspective window, 4 parts of an upper box, The sand-blasting machine comprises a first sand-blasting unit, 6-b, a second sand-blasting unit, 6-1, a low-position sand inlet cap, 6-2, a low-position sand inlet pipe, 6-3, an air flow regulating valve, 6-4, an air supply pipe, 6-5, a pneumatic regulating valve, 6-6, an elastic gasket, 6-7, a sand outlet cap, 6-8, a sintering plate, 6-9, a high-position sand inlet pipe, 6-10, a high-position sand inlet cap, 6-11, an internal pipeline, 6-12, a pneumatic air conveying pipeline, 7, a sand outlet pipeline component, 7-1, a sand outlet, 7-2, a protective shell, 7-3, a connecting device, 7-4, a sand outlet pipe, 7-5, a reducing valve, 7-6, a connecting circular ring, 8, a heating device, 8-1, a fixing nut, 8-2 and a hose sleeve, 8-3 parts of a cross side plug, 8-4 parts of a heat-resistant hose, 8-5 parts of a heater, 9 parts of a temperature sensor, 10 parts of a sand removing plug, 11 parts of an air inlet pipeline, 12 parts of a pipeline fixing device, 13 parts of screws, 14 parts of a fixing seat, 15 parts of a ventilating pipeline, 16 parts of an air channel three-way pipe, 17 parts of an elastic partition plate, 18 parts of a supporting spring, 19 parts of a humidity sensor, 20 parts of a stud bolt, 21 parts of a box body bottom plate, 22 parts of an elastic gasket.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The invention relates to a rail vehicle sanding device with double pneumatic sanding units, which is shown in a figure 1-3 and comprises a box body, a first sanding unit 6-a, a second sanding unit 6-b and a sand outlet pipeline part 7, wherein a partition plate is arranged inside the box body to divide the box body into a first cavity and a second cavity which are symmetrical left and right and have equal volumes, the box body comprises an upper box body 4 and a lower box body 5, the upper box body 4 is cuboid in shape, the lower box body 5 is funnel-shaped in shape, two sand box hanging devices 1 are symmetrically arranged on the left and right of the top of the upper box body 4, the sand box hanging devices 1 are used for being connected with a vehicle, each sand box hanging device 1 comprises hanging lugs 1-3 and reinforcing ribs 1-4, the lower plates for hanging the lugs 1-3 are symmetrically welded on the left and right sides of the top of the upper box body 4, the upper plates for hanging the lugs 1-3 are symmetrically provided with two round, the sand box suspension device is used for installing the spoke plate type bolt covers 1-2 to strengthen the connection strength, and alleviate the vibration impact on the bolt groups 1-1 at the connection part of the sand scattering device and the train in the actual operation, so that the service life of the sand box suspension device is prolonged, and lifting lug reinforcing ribs 1-4 are welded between the upper plate and the lower plate of the suspension lifting lugs 1-3 along the symmetrical axis direction of the two round holes to improve the overall strength of the sand box suspension device 1.
The upper part of the box body is provided with two sand inlets which respectively correspond to the first cavity and the second cavity, the box body is provided with a sand inlet sealing device 2 at the sand inlet, so that the sand spreading device has good air tightness when being charged with an air source to work, as shown in figure 5 and figure 6, the sand inlet sealing device 2 comprises a sand box cover 2-3, a cover body mounting seat 2-5 and a cover inner sleeve 2-10, the outer side of the sand box cover 2-3 is provided with a boss with a round hole along the axial line, the boss is provided with a counter bore for mounting a gasket 2-2 and a set screw 2-1, so as to realize the axial positioning of the sealing device, the sand box cover 2-3 is internally provided with a three-claw buckle, the shape of the buckle is the same as the cover body mounting seat 2-5, the buckling connection between the cover body and the mounting seat is realized through the screwing of the buckle, an elastic rubber ring 2-4 is arranged between the sand box, the direct contact is avoided to generate friction, the elastic rubber rings 2-4 are in a compressed state when being installed, and the gap between the cover body and the installation seat is filled by overcoming the compression through the elasticity of the elastic rubber rings when compressed air is introduced, so that the good air tightness of the device is ensured. The cover body mounting seat 2-5 is symmetrically provided with threaded holes at the circle centers of the four round corners, and the bottom plate is provided with a circular ring notch for mounting the elastic circular ring 2-6, so that the contact area of the mounting seat and the sand inlet is reduced, and the phenomenon that the cover body mounting seat 2-5 and the box body are excessively rubbed by bolts due to the large pretightening force generated by the bolt connection is avoided, and the service life is shortened. The inner part of the cover body is provided with a cylindrical boss which is in interference fit with the inner cover sleeve 2-10, the inner cover sleeve 2-10 is internally provided with an adjusting seat 2-7, a spring 2-8 and a thrust gasket 2-9, the adjusting seat 2-7 is in direct contact with the boss 2-3 of the sand box cover, when the sand box cover 2-3 is screwed, the spring 2-8 is pressed to generate enough elasticity to ensure that the buckles are screwed tightly, the thrust gasket 2-9 can adjust the looseness of the spring in the inner cover sleeve 2-10 to control the screwing tightness, and the sleeve body and the set screw 2-1 realize the axial positioning of the cover body. The pull rod seat 2-13 is in interference connection with an installation boss with a cylindrical hole above the sand box cover, a round notch is formed in the middle of the pull rod seat 2-13 and is connected with the pull rod 2-12, and the hanging-out work after the cover body is unscrewed is achieved through the hanging ring 2-11.
The box body is provided with two sand amount perspective parts 3 corresponding to the first cavity and the second cavity respectively, each sand amount perspective part 3 comprises a perspective window mounting seat 3-2 and a perspective window 3-3, the perspective window mounting seats 3-2 are arranged at the positions of the oval groove openings right below the two sand inlets in the upper portion of the box body, the perspective windows 3-3 are embedded into the perspective window mounting seats 3-2 through the hinged hole bolt groups 3-1 respectively, and the sand amount in the first cavity and the second cavity can be directly observed during sand filling.
The first sanding unit 6-a and the second sanding unit 6-b are arranged at the lower end of the box body and are respectively connected with the first cavity and the second cavity, the first sanding unit 6-a and the second sanding unit 6-b are identical in structure, and sand can flow to the sand outlet pipe through the corresponding sanding units after being ventilated during work. As shown in FIG. 7, taking the structure of the first sanding unit 6-a as an example for specific explanation, the first sanding unit 6-a comprises a low sand inlet cap 6-1, a low sand inlet pipe 6-2, an air supply pipe 6-4, a pneumatic control valve 6-5, a sand outlet cap 6-7, a high sand inlet pipe 6-9 and a high sand inlet cap 6-10, wherein the low sand inlet cap 6-1 and the high sand inlet cap 6-10 are respectively the sand inlet cap correspondingly arranged at the lowest sand position and the highest sand position set in the sand box, the low sand inlet pipe 6-2 is arranged at the lower end of the low sand inlet cap 6-1, the lower end of the low sand inlet pipe 6-2 penetrates through the bottom of the box and is connected with the sand outlet cap 6-7, the high sand inlet pipe 6-9 is arranged at the lower end of the high sand inlet cap 6-10, and the lower end of the high sand inlet pipe 6-9 penetrates through the bottom of the box and is connected with the sand outlet cap 6-7 through an internal pipeline 6-11 And then, in order to ensure that the sand smoothly flows into the sand outlet 6-7 at the tail end of the high-position sand inlet pipe 6-9, the internal pipeline 6-11 is inclined downwards to enable the sand to flow downwards by virtue of gravity, a sand clearing plug 10 is arranged on the right side of the internal pipeline 6-11 to prevent the sand from accumulating to influence the sand spreading rate, the sand flowing into the tail end of the sand outlet pipe from the low-position sand inlet 6-1 and the high-position sand inlet 6-10 is converged from the pipelines and then flows to the sand outlet 6-7, the sand outlet 6-7 is arranged below the first sand spreading unit 6-a through an elastic gasket 6-6, and the elastic gasket 6-6 can be used for filling up the installation gap, reducing the friction generated when the sand outlet 6-7 works and prolonging the service life of parts. The pneumatic adjusting valve 6-5 is arranged on a pneumatic air conveying pipeline 6-12 of the first sanding unit 6-a, and can control the on-off or inflow proportion of air flow entering the first sanding unit 6-a from the ventilating pipeline according to requirements, so that the size of air pressure input into the cavity of the sand box is controlled, and the first-stage control of sanding speed is realized. The other end of the pneumatic air delivery pipeline 6-12 is connected with an air supply pipe 6-4, the air supply pipe 6-4 is a three-way pipe fitting, the other two ends of the air supply pipe 6-4 are provided with an air flow adjusting valve 6-3 at the pipe orifice at one end and are connected with a low-level sand inlet pipe 6-2 at the other end, the air supply pipe 6-4 introduces input compressed air into the box body, and the air flow adjusting valve 6-3 at the port of the air supply pipe 6-4 can control the flow of the compressed air according to the external environment requirements so as to control the sand spreading rate. Sintering plates 6-8 with threaded holes symmetrically formed in the periphery are installed at the connecting positions of the first sanding unit 6-a and the second sanding unit 6-b and the lower box body 5 and used for adsorbing introduced compressed air and impurities in sand in the box, and the sintering plates 6-8 are made of heat-resistant materials. The first sanding unit 6-a and the second sanding unit 6-b are also provided with a temperature sensor 9.
The lower ends of the first sand spreading unit 6-a and the second sand spreading unit 6-b are connected with a sand outlet pipeline part 7, the sand outlet pipeline part 7 comprises two groups of sand outlet pipes 7-4, variable diameter valves 7-5 and connecting rings 7-6 which are respectively corresponding to the first sand spreading unit 6-a and the second sand spreading unit 6-b, the sand outlet pipes 7-4 and the sand outlet 6-7 are connected by the connecting rings 7-6 at the corners of the tail ends for sand flow to the sand outlet 7-1, the variable diameter valves 7-5 are arranged at the other ends of the sand outlet pipes 7-4, the diameters of round holes arranged at the front end and the rear end of the variable diameter valves 7-5 are different, the sand outlet pipelines with different diameters can be connected to further control the sand spreading rate, the two groups of variable diameter valves 7-5 can be directly connected with the sand outlet 7-1 through a connecting device 7-3, the two groups of variable diameter valves 7-5 can also be connected with the connecting device 7-3 through sand outlet pipelines with different diameters, and the protective shell 7-2 is arranged outside the connecting device 7-3, so that the sand flowing out of the two first sand spreading units 6-a and the second sand spreading units 6-b can finally flow into the sand outlet 7-1 and finally spread to the steel rail.
The side surfaces of the first sanding unit 6-a and the second sanding unit 6-b are respectively provided with a heating device 8, the connection mode is the same, taking the connection mode of the heating device 8 at the first sanding unit 6-a as an example, the heating device 8 comprises a heat-resistant hose 8-4 and a heater 8-5, the heater 8-5 is connected with the first sanding unit 6-a through the heat-resistant hose 8-4, heat generated by electrifying a resistance wire in the heater 8-5 is introduced into the first sanding unit 6-a in a hot air mode, compared with a heating rod, the heat transfer effect is better, the heat-resistant hose 8-4 can transfer a heat source and reduce the outward dissipation of the heat, hose sleeves 8-2 are respectively arranged at the two ends of the heat-resistant hose 8-4, and the hose sleeves 8-2 play a role in fixing and protecting the left end and the right end of the heat-resistant hose 8-4, in order to ensure that the hose sleeve 8-2 does not deform due to local overheating at the contact part with the hose, rectangular notches are formed in the two sides of the hose sleeve, a cross-shaped side plug 8-3 is installed, the other end of the heat-resistant hose 8-4 penetrates into an equal-diameter round hole formed in the side wall of the first sanding unit 6-a, the outer side of the round hole is screwed and fixed through a fixing nut 8-1, and the hose sleeve 8-2 and the cross-shaped side plug 8-3 are installed in the same way. Go up the box 4 and all install humidity transducer 19 in the lateral wall about, humidity transducer 19 is used for detecting the humidity and the temperature of the inside grit of device under the current environment with temperature sensor 9 cooperation to driver's cabin transmission information, the control corresponds opening of heating device 8 separately and stops.
As shown in fig. 4, an air inlet pipeline 11 and a ventilation pipeline 15 are arranged outside the box body, compressed air is mainly introduced from an auxiliary reservoir of the train and enters the sand box through the air inlet pipeline 11, the air inlet pipeline 11 is connected with one end of the ventilation pipeline 15 behind the box body through a pipeline fixing device 12 at the top of the box body, threaded holes are formed in the periphery of the pipeline fixing device 12 and fixedly connected with the upper box body 4 through screws 13, two fixing seats 14 which are vertically arranged along a symmetrical axis along the rear of the upper box body 4 through a bolt group and have a certain distance are used for fixing the ventilation pipeline 15, and the ventilation pipeline 15 is prevented from shaking greatly during ventilation. The other end of the ventilation pipeline 15 is connected with a gas path three-way pipe 16, and the gas path three-way pipe 16 is respectively connected with the first sanding unit 6-a and the second sanding unit 6-b to realize the diversion of compressed air, so that the compressed air can be matched with pneumatic adjusting valves of the first sanding unit 6-a and the second sanding unit 6-b for use, and the wind pressure can be reasonably provided.
When dress sand, for the inside structure of protection box, upper portion in first cavity and the second cavity all is equipped with slope type's elastic separation board 17, this baffle is slope type, there is sufficient intensity to bear the shakeout, and make the grit utilize gravity to slide into the incasement from the front bezel, as shown in fig. 8, the baffle below is equipped with the boss edge, and set up two round holes along the axis of symmetry, be used for installing supporting spring 18, the baffle can make supporting spring 18 pressurized when bearing the shakeout pressure during dress sand, the spring overcomes the elasticity that the compression produced and can play the supporting role to elastic separation board, and transmit partial pressure for the box back wall, further improve structural strength.
The bottom of the lower box body 5 is welded with a box body bottom plate 20, bolt holes are respectively arranged on the periphery of the bottom plate, and round holes are arranged in the middle of the bottom plate to fix the low-position sand inlet pipe 6-2, the high-position sand inlet pipe 6-9 and the blast pipe 6-4. An elastic gasket 22 is arranged between the box body bottom plate 21 and the first sanding unit 6-a and the second sanding unit 6-b, the shape of the elastic gasket 22 is consistent with that of the box body bottom plate 21, the elastic gasket 22 is used for relieving the impact of the sand box during operation, and the box body bottom plate 20 and the elastic gasket 21 are connected with the first sanding unit 6-a and the second sanding unit 6-b through stud bolts 22.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The utility model provides a rail vehicle sanding device with two pneumatic sanding units which characterized in that: including box, first sanding unit (6-a), second sanding unit (6-b) and sand outlet pipe way part (7), the inside of box is equipped with first cavity and second cavity, first sanding unit (6-a) and second sanding unit (6-b) are all established the lower extreme of box and respectively with first cavity and second cavity are connected, the lower extreme of first sanding unit (6-a) and second sanding unit (6-b) all with sand outlet pipe way part (7) are connected.
2. A rail vehicle sanding device with a dual pneumatic sanding unit according to claim 1, characterized in that: the box body comprises an upper box body (4) and a lower box body (5), the upper box body (4) is cuboid in shape, the lower box body (5) is funnel-shaped, the top of the upper box body (4) is provided with two sand box suspension devices (1) in bilateral symmetry, the sand box suspension device (1) is used for being connected with a rail vehicle, the sand box suspension device (1) comprises suspension lifting lugs (1-3) and lifting lug reinforcing ribs (1-4), the lower plate of the hanging lifting lug (1-3) is welded on the top of the upper box body (4), two round holes are symmetrically formed in the front and the back of an upper plate of the hanging lifting lug (1-3), a bolt group (1-1) and a radial plate type bolt cover (1-2) are installed at the round holes of the upper plate, the lifting lug reinforcing ribs (1-4) are welded between the upper plate and the lower plate of the hanging lifting lugs (1-3) along the symmetrical axis direction of the two round holes.
3. A rail vehicle sanding device with a dual pneumatic sanding unit according to claim 1, characterized in that: the box body is provided with two sand inlets corresponding to the first cavity and the second cavity respectively, a sand inlet sealing device (2) is arranged at the sand inlet of the box body, the sand inlet sealing device (2) comprises a sand box cover (2-3), a cover body mounting seat (2-5) and a cover inner sleeve (2-10), a boss with a round hole is arranged on the outer side of the sand box cover (2-3) along the axis, a gasket (2-2) and a set screw (2-1) are mounted on the boss, an elastic rubber ring (2-4) is arranged between the sand box cover (2-3) and the cover body mounting seat (2-5), an elastic ring (2-6) is mounted at the bottom of the cover body mounting seat (2-5), and an adjusting seat (2-7) is arranged inside the cover inner sleeve (2-10), The adjusting seat (2-7) is in direct contact with a boss of the sand box cover (2-3), a cylindrical hole in the sand box cover (2-3) is connected with a pull rod seat (2-13), a round notch is formed in the middle of the pull rod seat (2-13) and connected with a pull rod (2-12), and a lifting ring (2-11) is arranged on the pull rod (2-12).
4. A rail vehicle sanding device with a dual pneumatic sanding unit according to claim 1, characterized in that: the box is equipped with two sand volume perspective parts (3) that correspond respectively in first cavity and second cavity, sand volume perspective part (3) are including perspective window mount pad (3-2) and perspective window (3-3), perspective window mount pad (3-2) set up in the oval notch department on box upper portion, perspective window (3-3) are respectively through reamed hole bolt group (3-1) embedding in perspective window mount pad (3-2).
5. A rail vehicle sanding device with a dual pneumatic sanding unit according to claim 1, characterized in that: the first sanding unit (6-a) and the second sanding unit (6-b) are identical in structure, the first sanding unit (6-a) comprises a low-position sand inlet cap (6-1), a low-position sand inlet pipe (6-2), an air supply pipe (6-4), a pneumatic regulating valve (6-5), a sand outlet cap (6-7), a high-position sand inlet pipe (6-9) and a high-position sand inlet cap (6-10), the low-position sand inlet cap (6-1) and the high-position sand inlet cap (6-10) are arranged inside the box body, the low-position sand inlet pipe (6-2) is arranged at the lower end of the low-position sand inlet cap (6-1), the lower end of the low-position sand inlet pipe (6-2) penetrates through the bottom of the box body and is connected with the sand outlet cap (6-7), the high-position sand inlet pipe (6-9) is arranged at the lower end of the high-position sand inlet cap (6-10), the lower end of the high-position sand inlet pipe (6-9) penetrates through the bottom of the box body and is connected with the sand outlet cap (6-7) through an internal pipeline (6-11), the sand outlet cap (6-7) is arranged below the first sand spreading unit (6-a) through an elastic gasket (6-6), a sand cleaning plug (10) is arranged on the internal pipeline (6-11), the air supply pipe (6-4) is a three-way pipe fitting, an air flow regulating valve (6-3) is arranged at one end of the air supply pipe (6-4), the other two ends of the air supply pipe (6-4) are respectively connected with the low-position sand inlet pipe (6-2) and the pneumatic air supply pipeline (6-12), a pneumatic regulating valve (6-5) is arranged at the other end of the pneumatic air supply pipeline (6-12), and the first sand spreading unit (6-a) and the second sand spreading unit (6-b) are connected with the box body The joint is provided with a sintering plate (6-8), and the first sanding unit (6-a) and the second sanding unit (6-b) are both provided with a temperature sensor (9).
6. A rail vehicle sanding device with a dual pneumatic sanding unit according to claim 5 wherein: go out sand pipeline part (7) including two sets ofly respectively with go out sand pipe (7-4), reducing valve (7-5) and connection ring (7-6) that first sanding unit (6-a) and second sanding unit (6-b) correspond, go out sand pipe (7-4) one end with go out sand cap (6-7) and pass through connect ring (7-6) and connect, go out sand pipe (7-4) other end installation reducing valve (7-5), two sets of reducing valve (7-5) are connected with sand outlet (7-1) through connecting device (7-3), connecting device (7-3) outside is equipped with protecting sheathing (7-2).
7. A rail vehicle sanding device with a dual pneumatic sanding unit according to claim 1, characterized in that: the side surfaces of the first sanding unit (6-a) and the second sanding unit (6-b) are respectively provided with a heating device (8) in the same connection mode, each heating device (8) comprises a heat-resistant hose (8-4) and a heater (8-5), each heater (8-5) is connected with the first sanding unit (6-a) through the heat-resistant hose (8-4), two ends of each heat-resistant hose (8-4) are respectively provided with a hose sleeve (8-2) and a cross side plug (8-3), and two ends of each heat-resistant hose (8-4) are respectively connected with the first sanding unit (6-a) and the heaters (8-5) through fixing nuts (8-1).
8. A rail vehicle sanding device with a dual pneumatic sanding unit according to claim 1, characterized in that: the sand spraying device is characterized in that an air inlet pipeline (11) and a ventilation pipeline (15) are arranged outside the box body, the air inlet pipeline (11) is connected with one end of the ventilation pipeline (15) at the rear of the box body through a pipeline fixing device (12) at the top of the box body, the pipeline fixing device (12) is connected with the box body through a screw (13), the ventilation pipeline (15) is connected with the box body through two fixing seats (14) which are arranged at the rear of the box body along a symmetrical axis through bolts, the other end of the ventilation pipeline (15) is connected with a gas path three-way pipe (16), and the gas path three-way pipe (16) is respectively connected with the first sand spraying unit (6-a) and the second sand spraying unit (6-b).
9. A rail vehicle sanding device with a dual pneumatic sanding unit according to claim 1, characterized in that: all be equipped with slope type's elastic diaphragm (17) in first cavity and the second cavity, the round hole department of elastic diaphragm (17) below boss is equipped with supporting spring (18), humidity transducer (19) are all installed to first cavity and second cavity lateral wall.
10. A rail vehicle sanding device with a dual pneumatic sanding unit according to claim 1, characterized in that: the sand spraying device is characterized in that a box bottom plate (21) is welded at the bottom of the box body, an elastic gasket (22) is arranged between the box bottom plate (21) and the first sand spraying unit (6-a) and the second sand spraying unit (6-b), and the box bottom plate (21) and the elastic gasket (22) are connected with the first sand spraying unit (6-a) and the second sand spraying unit (6-b) through stud bolts (20).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110141637.2A CN112693480B (en) | 2021-02-02 | 2021-02-02 | Railway vehicle sanding device with double pneumatic sanding units |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110141637.2A CN112693480B (en) | 2021-02-02 | 2021-02-02 | Railway vehicle sanding device with double pneumatic sanding units |
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| CN112693480B CN112693480B (en) | 2024-06-21 |
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| Publication number | Publication date |
|---|---|
| CN112693480B (en) | 2024-06-21 |
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