Sand spreader for rail transit vehicle

Abstract

The utility model relates to the technical field of sand spreaders, and discloses a sand spreader for rail transit vehicles, comprising a sand box, a driving box is installed at the upper end of the sand box, a rotating rod is rotatably installed between the driving box and the inner wall of the sand box, and a plurality of rotating plates are fixedly connected to the outer wall of the rotating rod located inside the driving box, and the first solenoid valve is set to close and open the first pipe, and the bellows can convey wind to the inside of the driving box through the first pipe, and the wind can blow the rotating plate, and then the rotating plate rotates under the cooperation of the rotating rod, and the wind blown inside the driving box can be discharged from the exhaust hole, and then the rotating rod drives the U-shaped frame and the stirring plate to rotate, and a heating rod is set inside the stirring plate, and the stirring plate is made of heat transfer material, so that the sand is dispersed and heated under the cooperation of the stirring plate and the circular hole, and then the sand is better sprayed.

Description

Technical Field

[0001] The utility model relates to the technical field of sand spreaders, in particular to a sand spreader for rail transit vehicles. Background Art

[0002] Sand spreading devices are commonly used in rail transit vehicles to improve the adhesion between wheels and rails. The sand spreader is the core component of the sand spreading device and is installed in front of the bogie under the vehicle. It is driven by compressed air provided by the vehicle and is responsible for spraying the sand in the sand box onto the track to improve the adhesion between the wheel and rail. In order to prevent the sand in the sand box from freezing and agglomerating due to moisture, a heater is installed in the sand spreader to heat the sand to achieve the purpose of drying.

[0003] In the patent document with publication number CN109910923A, a sand spreader suitable for rail transit vehicles is disclosed, including a sand box, a mounting seat is arranged close to the bottom of the sand box, an exhaust pipe and a sand guide pipe are arranged side by side in the sand box, the exhaust pipe and the sand guide pipe are arranged perpendicular to the bottom of the sand box, and the exhaust pipe and the sand guide pipe pass through the bottom of the sand box and extend into the mounting seat, and the bottom of the mounting seat is also provided with sand blasting ports corresponding to the exhaust pipe and the sand guide pipe. The mounting seat is also respectively provided with two air inlet pipes, the air inlets of the two air inlet pipes are respectively located on one side of the mounting seat, the air outlets of the two air inlet pipes are located on the surface of the mounting seat, and the air outlets are fitted with the bottom of the sand box. The sand spreader has a temperature self-feedback control function, which solves the problem that the existing sand spreader heater is prone to overheating and burning.

[0004] When the above devices and traditional devices are implemented, at least two-thirds of the sand must be placed inside the sand box, and the sand inside the sand box may clump. A heating mechanism is generally provided inside the sand box to prevent the sand from clumping. The clumped sand will still clump after heating, thereby affecting the sand discharge effect. Utility Model Content

[0005] The utility model aims to provide a sand spreader for rail transit vehicles, which solves the problem that when the above devices and traditional devices are implemented, at least two-thirds of the sand box must be placed inside, and the sand inside the sand box may clump, and a heating mechanism is generally provided inside the sand box to prevent the sand from clumping, and the clumped sand will still be clumped after heating, thereby affecting the sand discharge effect.

[0006] An embodiment of the present application provides a sand spreader for rail transit vehicles, including a sand box, a driving box is installed at the upper end of the sand box, a rotating rod is rotatably installed between the driving box and the inner wall of the sand box, a plurality of rotating plates are fixedly connected to the outer wall of the rotating rod located inside the driving box, an exhaust hole is opened on one side of the driving box, a first pipe is installed on one side of the driving box, a first solenoid valve is installed on the outer wall of the first pipe, a bellows is installed on the side of the first pipe away from the driving box, a U-shaped frame is installed at the lower end of the rotating rod, stirring plates are respectively installed at the lower ends of both sides of the U-shaped frame, a plurality of circular holes are opened on one side of the stirring plate, a plurality of heating rods are arranged inside the stirring plate, the positions of the plurality of heating rods and the circular holes are staggered, and a sand discharge mechanism is arranged below the sand box.

[0007] By adopting the above technical scheme, the first solenoid valve can be set to close and open the first pipeline, and the bellows can convey wind to the inside of the driving box through the first pipeline, and the wind can blow the rotating plate, and then the rotating plate rotates with the cooperation of the rotating rod, and the wind blown inside the driving box can be discharged from the exhaust hole, and then the rotating rod drives the U-shaped frame and the stirring plate to rotate, and a heating rod is provided inside the stirring plate, and the stirring plate is made of heat transfer material, so that the sand is broken up and heated with the cooperation of the stirring plate and the circular hole, thereby facilitating a better spraying effect of the sand.

[0008] Optionally, a box door is hinged at the upper end of the sand box.

[0009] By adopting the above technical solution, the sand box can be changed and opened through the setting of the box door, which makes it convenient for the staff to transport sand inside the sand box.

[0010] Optionally, the sand discharge mechanism includes a mounting seat, the mounting seat is installed with the lower end of the sand box, a second pipe is installed on one side of the mounting seat, the second pipe is installed with the bellows, and a second solenoid valve is installed outside the second pipe.

[0011] By adopting the above technical solution, the airflow inside the bellows can be transported to the inside of the mounting seat through the second pipeline, and the second solenoid valve can close and open the second pipeline.

[0012] Optionally, a sand guide tube is installed inside the mounting seat, and the sand guide tube extends to the inside of the sand box.

[0013] By adopting the above technical solution, the sand guiding pipe can play a role of guiding sand under the cooperation of wind force.

[0014] Optionally, an exhaust pipe is installed inside the mounting seat located on one side of the sand guide pipe, and the exhaust pipe extends to the inside of the sand box.

[0015] By adopting the above technical solution, the wind can be transported through the exhaust pipe.

[0016] Optionally, the exhaust pipe is higher than the sand guide pipe.

[0017] By adopting the above technical solution, the height of the exhaust pipe is higher than the sand guide pipe, so the height of the wind transportation is higher than the sand guide pipe.

[0018] Optionally, a sand discharge pipe is installed at the lower end of the mounting seat.

[0019] By adopting the above technical solution, sand can be discharged through the sand discharge pipe.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0021] The technical solution of the present application can close and open the first pipe through the setting of the first solenoid valve, and the bellows can convey wind to the inside of the driving box through the first pipe, and the wind can blow the rotating plate, and then the rotating plate rotates with the cooperation of the rotating rod, and the wind blown inside the driving box can be discharged from the exhaust hole, and then the rotating rod drives the U-shaped frame and the stirring plate to rotate, and a heating rod is provided inside the stirring plate, and the stirring plate is made of heat transfer material, so that the sand can be broken up and heated with the cooperation of the stirring plate and the circular hole, thereby facilitating a better spraying effect of the sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 It is a front view schematic diagram of a sand spreader for rail transit vehicles of the utility model;

[0024] Figure 2 This is a schematic diagram of a front view of a sand spreader for a rail transit vehicle according to the utility model;

[0025] Figure 3 This is a schematic diagram of a top view of a sand spreader for a rail transit vehicle according to the utility model;

[0026] Figure 4 This is a schematic diagram of a top view of a driving box of a sand spreader for a rail transit vehicle according to the utility model;

[0027] Figure 5 The utility model is a top view of a partial cross-sectional view of a stirring plate of a sand spreader for rail transit vehicles.

[0028] In the figure: 1. sand box; 2. drive box; 3. first pipeline; 4. bellows; 5. first solenoid valve; 6. rotating rod; 7. rotating plate; 8. exhaust hole; 9. mounting seat; 10. sand discharge pipe; 11. second pipeline; 12. second solenoid valve; 13. sand guide pipe; 14. exhaust pipe; 15. U-shaped frame; 16. stirring plate; 17. heating rod. DETAILED DESCRIPTION

[0029] See also Figure 1-Figure 5 The utility model provides a technical solution: a sand spreader for rail transit vehicles, comprising a sand box 1, a driving box 2 is installed at the upper end of the sand box 1, a rotating rod 6 is rotatably installed between the driving box 2 and the inner wall of the sand box 1, a plurality of rotating plates 7 are fixedly connected to the outer wall of the rotating rod 6 located inside the driving box 2, an exhaust hole 8 is provided on one side of the driving box 2, a first pipe 3 is installed on one side of the driving box 2, a first solenoid valve 5 is installed on the outer wall of the first pipe 3, a bellows 4 is installed on the side of the first pipe 3 away from the driving box 2, a U-shaped frame 15 is installed at the lower end of the rotating rod 6, stirring plates 16 are respectively installed at the lower ends of both sides of the U-shaped frame 15, a plurality of circular holes are provided on one side of the stirring plate 16, a plurality of heating rods 17 are arranged inside the stirring plate 16, and the positions of the plurality of heating rods 17 and the circular holes are staggered, and a sand discharge mechanism is provided below the sand box 1;

[0030] The sand discharge mechanism comprises a mounting seat 9 , which is mounted on the lower end of the sand box 1 , a second pipe 11 is mounted on one side of the mounting seat 9 , the second pipe 11 is mounted on the bellows 4 , and a second solenoid valve 12 is mounted outside the second pipe 11 .

[0031] In the technical solution of the utility model, the first solenoid valve 5 is arranged to close and open the first pipe 3, and the bellows 4 can convey wind to the inside of the driving box 2 through the first pipe 3, and the wind can blow the rotating plate 7, and then the rotating plate 7 rotates with the cooperation of the rotating rod 6, and the wind blown inside the driving box 2 can be discharged from the exhaust hole 8, and then the rotating rod 6 drives the U-shaped frame 15 and the stirring plate 16 to rotate, and a heating rod 17 is arranged inside the stirring plate, and the stirring plate 16 is made of heat transfer material, so that the sand is broken up and heated with the cooperation of the stirring plate 16 and the circular hole, thereby facilitating a better spraying effect of the sand.

[0032] In addition, the airflow inside the bellows 4 can be transported to the inside of the mounting seat 9 through the second pipe 11 , and the second solenoid valve 12 can close and open the second pipe 11 .

[0033] In the technical solution of the utility model, if Figure 1-Figure 3As shown, a sand guide pipe 13 is installed inside the mounting seat 9, and the sand guide pipe 13 extends to the interior of the sand box 1. The sand guide pipe 13 can guide sand with the cooperation of wind force. An exhaust pipe 14 is installed inside the mounting seat 9 on one side of the sand guide pipe 13. The exhaust pipe 14 extends to the interior of the sand box 1. The exhaust pipe 14 can convey the wind force. The height of the exhaust pipe 14 is higher than the sand guide pipe 13. The height of the exhaust pipe 14 is higher than the sand guide pipe 13, which is convenient for wind transportation to be higher than the sand guide pipe 13. A sand discharge pipe 10 is installed at the lower end of the mounting seat 9, and the sand discharge pipe 10 can discharge sand.

[0034] In the technical solution of the utility model, if Figure 3 As shown, a box door is hinged at the upper end of the sand box 1. The setting of the box door can play a role in changing the ratio and opening the sand box 1, thereby facilitating the staff to transport sand inside the sand box 1.

[0035] When in use, firstly, the first solenoid valve 5 can be set to close and open the first pipe 3, and the bellows 4 can convey wind to the inside of the driving box 2 through the first pipe 3, and the wind can blow the rotating plate 7, and then the rotating plate 7 rotates with the cooperation of the rotating rod 6, and the wind blown inside the driving box 2 can be discharged from the exhaust hole 8, and then the rotating rod 6 drives the U-shaped frame 15 and the stirring plate 16 to rotate, and a heating rod 17 is provided inside the stirring plate, and the stirring plate 16 is made of heat transfer material, so that the sand is broken up and heated with the cooperation of the stirring plate 16 and the circular hole, and then the sand is better sprayed. After the second solenoid valve 12 is opened, the airflow can be transported from the second pipe 11 to the inside of the mounting seat 9, and the airflow inside the mounting seat 9 can be transported to the exhaust pipe 14, and then the sand discharge pipe 10 is used to discharge sand with the cooperation of the sand guide pipe 13.

Claims

1. A sand spreader for rail transit vehicles, characterized in that: The invention comprises a sand box (1), a driving box (2) is installed at the upper end of the sand box (1), a rotating rod (6) is rotatably installed between the driving box (2) and the inner wall of the sand box (1), a plurality of rotating plates (7) are fixedly connected to the outer wall of the rotating rod (6) located inside the driving box (2), an exhaust hole (8) is opened on one side of the driving box (2), a first pipe (3) is installed on one side of the driving box (2), a first solenoid valve (5) is installed on the outer wall of the first pipe (3), and the first electromagnetic valve (5) is installed on the outer wall of the first electromagnetic valve (5). A bellows (4) is installed on one side of a pipe (3) away from the driving box (2); a U-shaped frame (15) is installed at the lower end of the rotating rod (6); stirring plates (16) are installed at the lower ends of both sides of the U-shaped frame (15); a plurality of groups of circular holes are opened on one side of the stirring plate (16); a plurality of groups of heating rods (17) are arranged inside the stirring plate (16); the positions of the plurality of groups of heating rods (17) and the circular holes are staggered; a sand discharge mechanism is arranged below the sand box (1).

2. A sand spreader for rail transit vehicles according to claim 1, characterized in that: The upper end of the sand box (1) is hinged with a box door.

3. A sand spreader for rail transit vehicles according to claim 1, characterized in that: The sand discharge mechanism comprises a mounting seat (9), the mounting seat (9) being mounted on the lower end of the sand box (1), a second pipe (11) being mounted on one side of the mounting seat (9), the second pipe (11) being mounted on the bellows (4), and a second solenoid valve (12) being mounted on the outside of the second pipe (11).

4. A sand spreader for rail transit vehicles according to claim 3, characterized in that: A sand guide pipe (13) is installed inside the mounting seat (9), and the sand guide pipe (13) extends to the inside of the sand box (1).

5. A sand spreader for rail transit vehicles according to claim 4, characterized in that: An exhaust pipe (14) is installed inside the mounting seat (9) located on one side of the sand guide pipe (13), and the exhaust pipe (14) extends to the inside of the sand box (1).

6. A sand spreader for rail transit vehicles according to claim 5, characterized in that: The height of the exhaust pipe (14) is higher than that of the sand guide pipe (13).

7. A sand spreader for rail transit vehicles according to claim 6, characterized in that: A sand discharge pipe (10) is installed at the lower end of the mounting seat (9).

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