CN215154583U - Sanding device for railway vehicle - Google Patents
Sanding device for railway vehicle Download PDFInfo
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- CN215154583U CN215154583U CN202121664446.6U CN202121664446U CN215154583U CN 215154583 U CN215154583 U CN 215154583U CN 202121664446 U CN202121664446 U CN 202121664446U CN 215154583 U CN215154583 U CN 215154583U
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Abstract
The application discloses a sanding device for a rail vehicle, which comprises a sand storage mechanism, an air pressure mechanism and a sand blasting mechanism, wherein the sand blasting mechanism comprises a control assembly and a spray pipe assembly; the control assembly comprises an air control unit for controlling the air outlet condition of the air pressure mechanism; the sand blasting pipe assembly comprises a sand blasting pipe, one end of the sand blasting pipe is connected with the sand storage mechanism, and the other end of the sand blasting pipe is provided with a sand blasting port; the blast pipe assembly further comprises an air passage communicated with the sand blast pipe, the air passage is connected with an air pressure mechanism through an air control unit, and the air passage is provided with an air nozzle. Through the connection design of the air pressure mechanism and the sand blasting mechanism, the problems of low flow velocity and easy accumulation of sand grains in the sand pipe are solved. Meanwhile, the sand has a certain speed when being sprayed out from the sand blasting port, so that the influence of cross wind interference can be eliminated.
Description
Technical Field
The application relates to the field of rail vehicle mechanical design, in particular to a sanding device for a rail vehicle.
Background
The rail vehicle refers to various vehicles that travel on a rail. When severe weather such as winter or moist weather is met, the surface of the track can be iced or wet and slippery, and when the rail vehicle is started, stopped or braked emergently, idling or derailment is easy to occur, so that potential safety hazards are caused. Therefore, most vehicles running on the rails are provided with sanding devices, and the sanding devices increase the friction force between the wheels and the rails to realize safe and reliable running of the vehicles.
In the related art, due to the limitation of the body structure of the railway vehicle, the sanding rubber pipe has a longer route and a larger caliber. When the air flow output by the sand spreader is fixed, the phenomena of slow flow and accumulation of sand grains are more likely to occur as the path of the sand pipe is longer and the caliber of the sand pipe is larger. When sand is accumulated to a certain degree in the sand pipe, the sand accumulated at the rear end of the sand pipe is gradually increased, the accumulated sand is pushed to move forwards, and finally the sand is scattered to the wheel rail in a parabolic shape along the sand pipe opening under the combined action of the compressed gas with low flow velocity and gravity instead of being directly sprayed between the wheel tread and the wheel rail. In addition, the sanding process is also interfered by transverse wind in the high-speed running process of the railway vehicle, so that the utilization rate of sand grains is further reduced.
SUMMERY OF THE UTILITY MODEL
In view of this, the application provides a sanding device for rail vehicle, can solve the low, easy problem of piling up of the velocity of flow of sand grain in the sand pipe and sand grain discharge back receives the crosswind interference under the low-speed state, helps sand grain accurate injection to between wheel tread and wheel rail.
The sand spraying device for the railway vehicle comprises a sand storage mechanism, an air pressure mechanism and a sand spraying mechanism, wherein the sand spraying mechanism comprises a control assembly and a spray pipe assembly;
the control assembly comprises an air control unit for controlling the air outlet condition of the air pressure mechanism;
the sand blasting pipe assembly comprises a sand blasting pipe, one end of the sand blasting pipe is connected with the sand storage mechanism, and the other end of the sand blasting pipe is provided with a sand blasting port;
the blast pipe assembly further comprises an air passage communicated with the sand blast pipe, the air passage is connected with an air pressure mechanism through an air control unit, and the air passage is provided with an air nozzle.
Through the connection design of the air pressure mechanism and the sand blasting mechanism, the problems of low flow velocity and easy accumulation of sand grains in the sand pipe are solved. Meanwhile, the sand has a certain speed when being sprayed out from the sand blasting port, so that the influence of cross wind interference can be eliminated.
In some possible embodiments, a heater is provided at the blast opening; the control assembly further comprises a temperature control unit for controlling the heater, the temperature control unit comprising a temperature sensor for sensing an ambient temperature. When the temperature of environment is lower than the set temperature, the temperature control unit controls the heater to start heating, and when the temperature of environment is higher than the set temperature, the temperature control unit controls the heater to stop heating, so that intelligent consumption reduction is realized.
In some possible embodiments, the control assembly further comprises a sanding control unit for controlling the sanding action; the sand control unit, the air control unit and the temperature control unit are arranged in the same container. The integrated control greatly saves the equipment space and is more convenient to install.
In some possible embodiments, the air control unit comprises a first solenoid valve for controlling the output of the high pressure air flow.
In some possible embodiments, the pneumatic control unit further comprises a second solenoid valve provided with a pressure-regulating tuyere, and the second solenoid valve is used for controlling the output of the low-pressure airflow.
In some possible embodiments, the inner bore of the air nozzle is tapered, and the diameter of the inner bore gradually decreases from the air inlet end to the air outlet end.
In some possible embodiments, the taper of the bore is 2:3, the maximum diameter of the bore is 6mm, and the minimum diameter of the bore is 2 mm.
In some possible embodiments, the sand blasting pipe comprises a first sand channel and a second sand channel which are communicated, and an acute included angle formed by a central line of the first sand channel and a central line of the second sand channel is 15-60 degrees; the second sand channel is communicated with the sand blasting port, and the central lines of the second sand channel, the air channel and the air nozzle of the air channel coincide. The design avoids impact abrasion to other parts when the air nozzle 17 sprays air flow to the sand grains, and simultaneously forms resultant force with the driving force of the movement of the sand grains to the maximum extent, so that the air flow is utilized to the maximum extent, and resources are saved.
In some possible embodiments, the end of the air passage remote from the blast pipe is provided with a removable plug.
In some possible embodiments, the heater is a spiral heating ring, and the spiral heating ring is embedded in the inner wall of the sand blasting opening. Spiral heating ring is the heliciform structure, inlays inside the sandblast mouth, with the whole parcel heating in sandblast mouth, prevents to freeze. The sand blasting opening is made of a silicon rubber material, the silicon rubber material can keep the heat emitted by the spiral heating ring warm, and people can be prevented from being accidentally touched and scalded.
In summary, the present application has at least the following beneficial effects:
1, the problems of low flow velocity and easy accumulation of sand grains in a sand pipe are solved, cross wind interference is eliminated, and sand grains are accurately shot between a wheel tread and a wheel rail;
2, the problem that the sand blasting port is frozen is solved, and the high-efficiency heating and intelligent consumption reduction of the sand blasting port are realized;
3, the impact abrasion of the air nozzle to other parts when the air nozzle sprays air flow to the sand grains is avoided, and meanwhile, the air nozzle forms a resultant force with the pushing force of the movement of the sand grains to the maximum extent, so that the air flow is utilized to the maximum extent, and the resources are saved;
4 the integrated device has high intensification degree and convenient processing, installation and cleaning.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic view illustrating an installation of a sanding device for a railway vehicle on the railway vehicle according to an embodiment of the present disclosure;
FIG. 2 is an enlarged view of the structure at D in FIG. 1;
FIG. 3 is an enlarged view of the structure at A in FIG. 1;
fig. 4 is a sectional view a-a in fig. 3.
In the figure: A. the device comprises a spray pipe assembly, a cable B, a cable C, a stone remover frame, a control assembly, an E stone remover, an F air pipe, a G sanding rubber pipe, an H sanding device, a J sand box;
1. the air conditioner comprises a first cable connector, a second cable connector, a bus connector, a first cable connector, a second cable connector, a first cable connector, a second cable connector, a second connector;
11. the air-blast sand blasting device comprises a clamp, 12, a second air inlet flange, 13, a sand blasting port, 14, a spiral heating ring, 15, a second cable connector, 16, an air nozzle mounting seat, 17, an air nozzle, 18, a plug, 19, a sand blasting pipe, 20, a first sand channel, 21, an air channel, 22 and a second sand channel.
Detailed Description
For the purpose of making the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it should be understood that the drawings in the present application are for illustrative and descriptive purposes only and are not used to limit the scope of protection of the present application. Additionally, it should be understood that the schematic drawings are not necessarily drawn to scale.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The devices or materials used in the present application are commercially available from conventional sources and, unless otherwise indicated, are used in the conventional manner in the art or in the product specification. In addition, any methods and materials similar or equivalent to those described herein can be used in the methods of the present application. The preferred methods and materials described in this application are exemplary only.
Referring to fig. 1 to 4, a sanding device for a rail vehicle according to an embodiment of the present disclosure includes a sand storage mechanism, an air pressure mechanism, and a sand blasting mechanism, where the sand blasting mechanism includes a control assembly D and a nozzle assembly a;
the control assembly D comprises an air control unit for controlling the air outlet condition of the air pressure mechanism;
the sand blasting pipe assembly A comprises a sand blasting pipe 19, one end of the sand blasting pipe 19 is connected with a sand storage mechanism, and the other end of the sand blasting pipe is provided with a sand blasting port 13;
the blast pipe assembly A further comprises an air passage 21 communicated with the sand blast pipe 19, the air passage 21 is connected with an air pressure mechanism diagram through an air control unit, the air passage 21 is not shown, and the air nozzle 17 is arranged on the air passage 21.
As shown in fig. 1, in this embodiment, the sand storage mechanism includes a sand box J and a sand spreader H, and the sand spreader H is connected to the sand blast pipe 19 through a rubber sand blast pipe G. The control assembly D comprises a box body 10, when the sanding device is installed, the box body 10 is fixed on a stone remover frame C of the railway vehicle, and the sand blasting pipe assembly A is installed on a stone remover E, so that the sand blasting port 13 faces to an included angle between a wheel pair of the railway vehicle and a track. The installation method described in this embodiment is only illustrative, and in other specific embodiments, other installation methods, such as adjusting the fixing position of the control assembly D, may be replaced according to different rail vehicles.
In the present embodiment, the air duct 21 is connected to an air pressure mechanism (not shown in the figure) through an air control unit. Specifically, as can be seen from fig. 1 and 2, the air control unit includes a first air inlet flange 4 and an air outlet flange 8, the first air inlet flange 4 is connected to an air pressure mechanism (not shown in the figure), and the air outlet flange 8 is connected to a second air inlet flange 12 outside the tuyere installation base 16 through an air pipe F; the second air intake flange 12 is communicated with the air duct 21, so that the air duct 21 is connected with an air compressor mechanism which is not shown in the figure.
After the sanding device is started, the sand box J is opened, sand grains flow out of the sanding device H and then enter the sand blasting pipe 19 through the rubber sanding pipe G, compressed air flows out of the air pressure mechanism (not shown in the figure), enters the air control unit of the control component D through the first air inlet flange 4, then flows out of the air outlet flange 8 of the air control unit and enters the air pipe F, and finally enters the air passage 21 from the air pipe F through the second air inlet flange 12. The air passage 21 is communicated with the sand blasting pipe 19, and compressed air is blown to sand grains through the air nozzle 17 to accelerate the sand grains to be sprayed out from the sand blasting port 13, so that the problems of low flow rate and easy accumulation of the sand grains in the sand blasting pipe are solved. Meanwhile, the sand has a certain speed when being ejected from the sand blasting port 13, so that the influence of cross wind interference can be eliminated, and the principle of the cross wind interference is momentum theorem and inertia law in physics.
In the present embodiment, a heater is provided at the blasting port 13; the control assembly D further comprises a temperature control unit for controlling the heater, the temperature control unit comprising a temperature sensor 3 for sensing the ambient temperature. The heater is used for preventing the sand pipe from freezing, and in the embodiment, the heater is a spiral heating ring 14, and the spiral heating ring 14 is embedded into the inner wall of the sand blasting opening. In the related art, the heater is located at a single side of the sand blasting pipe or is far away from the sand blasting port, so that the heat of the heater cannot be effectively conducted and covers the whole sand blasting port in severe weather, and the phenomenon that the sand blasting port is frozen still occurs. In this embodiment, spiral heating ring 14 is the heliciform structure, inlays inside the sandblast mouth, with the whole parcel heating in sandblast mouth, prevents to freeze. In this embodiment, the sandblast mouth adopts the silicon rubber material, and the heat that spiral heating ring gived off can be kept warm to the silicon rubber material ability, also can prevent that people's mistake from bumping the scald.
In the present embodiment, the temperature sensor 3 is used for sensing the temperature of the environment, which is the natural weather environment when the rail vehicle runs. In this embodiment, when the temperature of environment is less than 2 ℃, the temperature control unit controls spiral heating ring 14 to begin to heat, and when the ambient temperature is higher than 2 ℃, the temperature control unit controls spiral heating ring 14 to stop heating, thereby realizing intelligent consumption reduction. Of course, in other specific embodiments, the heating start temperature may also be set to other temperature values, such as 5 ℃ or 8 ℃, as desired.
In this embodiment, the control assembly D further includes a sanding control unit for controlling a sanding operation; the sand control unit, the air control unit and the temperature control unit are arranged in the same container, and the container is the box body 10. Specifically, the control circuits of the sand control unit, the air control unit and the temperature control unit are integrated on the same integrated circuit board 9, and the integrated circuit board 9 is located in the box body 10. The integrated control greatly saves the equipment space and is more convenient to install.
In this embodiment, the gas accuse unit includes first solenoid valve 5, first solenoid valve 5 is used for controlling the output of high-pressure draught, in this application the high-pressure draught specifically indicates the air current of pressure more than or equal to 300kpa, in this embodiment, adopts the air current of 350 kpa. In other specific embodiments, high-pressure air flows with other pressure values can be adopted, and the pressure is preferably 300-400 kpa. When the sand control unit sends a command of starting sanding to the sander H, the air control unit synchronously opens the first electromagnetic valve 5, the air flow with the pressure of 350kpa enters the air passage 21, and the air flow is ejected to sand grains in the sand blasting pipe 19 at a high speed through the air nozzle 17 to accelerate the sand grains. When the sand control unit sends a command of stopping sanding to the sander H, the air control unit delays for 8s and then closes the first electromagnetic valve 5, and the delay time is favorable for blowing off the residual sand in the sand blasting pipe 19. Of course, in other specific embodiments, the length of the delay time may also be changed as required, and is preferably 2-10 s.
The sanding action is not always continued during the actual operation of the rail vehicle. When the sanding operation is not performed, in some cases, the condition that rain and snow and external sand particles flow back to enter the sand blasting pipe still occurs, at this time, if a high-pressure airflow enters the sand blasting pipe 19, resources are excessively wasted, and in order to solve the problem of rain and snow and external flow back in the condition, the problem is solved by blowing a low-pressure airflow into the sand blasting pipe 19 in the embodiment. Specifically, the pneumatic control unit further comprises a second electromagnetic valve 6 provided with a pressure regulating air nozzle 7, and the second electromagnetic valve 6 is used for controlling the output of low-pressure air flow. The low-pressure airflow in the application refers to an airflow with a pressure lower than 300kpa, and in the embodiment, a low-pressure airflow of 50kpa is adopted; the air control unit opens the second electromagnetic valve 6, and high-pressure air flow enters the air passage 21 after being reduced to 50kpa through the pressure regulating air nozzle 7.
In this embodiment, the sand blasting pipe 19 includes a first sand channel 20 close to the sand storage mechanism and a second sand channel 22 close to the sand blasting port, the first sand channel 20 is communicated with the second sand channel 22, and an acute included angle formed by a center line of the first sand channel 20 and a center line of the second sand channel 22 is 15-60 °; the center lines of the second sand channel 22, the air channel 21 and the air nozzle 17 of the air channel 21 are overlapped. The design avoids impact abrasion to other parts when the air nozzle 17 sprays air flow to the sand grains, and simultaneously forms resultant force with the driving force of the movement of the sand grains to the maximum extent, so that the air flow is utilized to the maximum extent, and resources are saved. The design of the included angle degree of the central lines of the two sand channels is beneficial to ensuring that the processing process of the coincidence of the central lines of the second sand channel 22, the air channel 21 and the air nozzle 17 of the air channel 21 is more convenient.
In this embodiment, the inner hole of the air nozzle 17 is tapered, and the diameter of the inner hole gradually decreases from the air inlet end to the air outlet end. Specifically, the taper of the inner hole is 2:3, the maximum diameter of the inner hole is 6mm, and the minimum diameter of the inner hole is 2 mm. Under the compressed air with the pressure of 300-400 kpa, the section of an inner hole of the air nozzle 17 is reduced, the flow speed is increased, and finally the compressed air carrying sand to move can reach the speed of 15-20 m/s, so that the sand can be accurately shot between the wheel tread and the wheel rail. Of course, in other embodiments, the taper of the bore may be varied as desired while adjusting the particular lengths of the maximum and minimum diameters of the bore.
In this embodiment, the end of the air duct 21 remote from the blast pipe 19 is provided with a removable plug 18. When the air nozzle 17 is invaded by sand or the air passage 21 is blocked by foreign matters, the blockage 18 is removed, and the nozzle 17 or the air passage 21 can be cleaned.
Reference throughout this specification to "some particular embodiments," "some possible embodiments," or "the application" etc., means that a particular feature, structure, or characteristic described in connection with the embodiments is included in one or more embodiments of the application. Thus, appearances of the phrases "in particular embodiments," "in some possible embodiments," or "the application" or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise. The terms "first" and "second" described in the present specification are used only for expressing different components of different regions, have no special meanings in technical features, and may be expressed by other terms.
The embodiments described above are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application, but is merely representative of selected embodiments of the application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims. Moreover, all other embodiments that can be made available by a person skilled in the art without making any inventive step based on the embodiments of the present application shall fall within the scope of protection of the present application.
Claims (10)
1. A sanding device for a rail vehicle, characterized in that: the sand blasting device comprises a sand storage mechanism, an air pressure mechanism and a sand blasting mechanism, wherein the sand blasting mechanism comprises a control assembly and a spray pipe assembly;
the control assembly comprises an air control unit for controlling the air outlet condition of the air pressure mechanism;
the sand blasting pipe assembly comprises a sand blasting pipe, one end of the sand blasting pipe is connected with the sand storage mechanism, and the other end of the sand blasting pipe is provided with a sand blasting port;
the blast pipe assembly further comprises an air passage communicated with the sand blast pipe, the air passage is connected with an air pressure mechanism through an air control unit, and the air passage is provided with an air nozzle.
2. A sanding device according to claim 1, characterized in that: a heater is arranged at the sand blasting port; the control assembly further comprises a temperature control unit for controlling the heater, the temperature control unit comprising a temperature sensor for sensing an ambient temperature.
3. A sanding device according to claim 2, characterized in that: the control assembly also comprises a sand control unit used for controlling the sanding action; the sand control unit, the air control unit and the temperature control unit are arranged in the same container.
4. A sanding device according to claim 3, characterized in that: the pneumatic control unit comprises a first electromagnetic valve, and the first electromagnetic valve is used for controlling the output of high-pressure airflow.
5. A sanding device according to claim 4, characterized in that: the pneumatic control unit further comprises a second electromagnetic valve provided with a pressure regulating air nozzle, and the second electromagnetic valve is used for controlling the output of low-pressure air flow.
6. A sanding device according to any one of claims 1-5, characterized in that: the inner hole of the air nozzle is in a conical shape, and the diameter of the inner hole is gradually reduced from one air inlet end to one air outlet end.
7. A sanding device according to claim 6, characterized in that: the taper of the inner hole is 2:3, the maximum diameter of the inner hole is 6mm, and the minimum diameter of the inner hole is 2 mm.
8. A sanding device according to any one of claims 1-5, characterized in that: the sand blasting pipe comprises a first sand channel and a second sand channel which are communicated, and an acute included angle formed by the center line of the first sand channel and the center line of the second sand channel is 15-60 degrees; the second sand channel is communicated with the sand blasting port, and the central lines of the second sand channel, the air channel and the air nozzle of the air channel coincide.
9. A sanding device according to any one of claims 1-5, characterized in that: the one end that the sand blasting pipe was kept away from to the air flue is equipped with detachable and blocks up.
10. A sanding device according to any one of claims 2-5, characterized in that: the heater is a spiral heating ring, and the spiral heating ring is embedded into the inner wall of the sand blasting port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121664446.6U CN215154583U (en) | 2021-07-21 | 2021-07-21 | Sanding device for railway vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121664446.6U CN215154583U (en) | 2021-07-21 | 2021-07-21 | Sanding device for railway vehicle |
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| CN215154583U true CN215154583U (en) | 2021-12-14 |
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| CN202121664446.6U Active CN215154583U (en) | 2021-07-21 | 2021-07-21 | Sanding device for railway vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113460096A (en) * | 2021-07-21 | 2021-10-01 | 湖南联诚轨道装备有限公司 | Sanding device for railway vehicle |
| CN116811927A (en) * | 2023-07-05 | 2023-09-29 | 山东创享智能科技有限公司 | Locomotive sanding monitoring control system |
-
2021
- 2021-07-21 CN CN202121664446.6U patent/CN215154583U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113460096A (en) * | 2021-07-21 | 2021-10-01 | 湖南联诚轨道装备有限公司 | Sanding device for railway vehicle |
| CN116811927A (en) * | 2023-07-05 | 2023-09-29 | 山东创享智能科技有限公司 | Locomotive sanding monitoring control system |
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