A sanding device for a road-rail tractor

Abstract

The utility model provides a kind of sanding device for highway-railway dual-purpose tractor, including sand tank, upper glue pipe, sanding valve, outlet connector, lower glue pipe, sanding steel pipe, solenoid valve group, air pipe, gas holder, air compressor and top pipe;The top interface of sanding valve is connected to the bottom of sand tank by upper glue pipe, the lower sand outlet of sanding valve is connected with outlet connector by screw thread, and outlet connector is connected to sanding steel pipe by lower glue pipe;Air compressor connects gas holder by top pipe, and gas holder connects the middle interface of sanding valve by air pipe;It can sand some sand on rail, can increase the friction between wheel and rail, avoid wheel skidding, and also make highway-railway dual-purpose vehicle more powerful.

Description

Technical Field

[0001] This utility model relates to the field of rail transit traction equipment technology, and in particular to a sand spreading device for a dual-purpose road and rail traction vehicle. Background Technology

[0002] When a combined road-rail tractor starts towing a train or goes uphill, the resistance increases, causing the speed to drop. To solve this problem, the traction force of the combined road-rail tractor must be increased. However, increasing the traction force also raises the risk of wheel slippage on the tracks. After all, both wheels and tracks are made of smooth materials with low friction, and slippage is more likely to occur, especially in rainy, snowy, or icy winter weather. Utility Model Content

[0003] In view of the above problems, the purpose of this application is to provide a sand spreading device for a road-rail dual-purpose tractor, which can spread some sand on the rails, increase the friction between the wheels and the rails, prevent the wheels from slipping, and make the road-rail dual-purpose vehicle more powerful.

[0004] To achieve some or all of the above objectives or other objectives, this application provides the following technical solution: a sand spreading device for a dual-purpose road-rail tractor, comprising a sand box, an upper rubber hose, a sand spreading valve, an outlet connector, a lower rubber hose, a sand spreading steel pipe, a solenoid valve assembly, an air pipe, an air tank, an air compressor, and a top pipe; the bottom of the sand box is connected to the top interface of the sand spreading valve via the upper rubber hose, the lower sand outlet of the sand spreading valve is threadedly connected to the outlet connector, and the outlet connector is connected to the sand spreading steel pipe via the lower rubber hose; the air compressor is connected to the air tank via the top pipe, and the air tank is connected to the middle interface of the sand spreading valve via the air pipe.

[0005] Furthermore, it also includes a sand box sealing cover; the top of the sand box is provided with a sand inlet, the sand inlet is provided with an external thread, the sand box sealing cover is provided with an internal thread that matches the external thread, and the sand inlet is sealed by the sand box sealing cover.

[0006] Furthermore, it also includes clamp No. 1, clamp No. 2, clamp No. 3 and clamp No. 4; clamp No. 1 and clamp No. 2 are installed on the upper rubber hose, clamp No. 1 is installed near the sand box, clamp No. 2 is installed near the sand spreading valve, the outlet connector and the lower rubber hose are clamped and secured by clamp No. 3, and the lower rubber hose and the sand spreading steel pipe are clamped and secured by clamp No. 4.

[0007] Furthermore, it also includes mounting plate bolts, a fixing bend plate, a valve mounting plate, a rubber gasket, and bend plate bolts; a valve mounting plate is provided between the rubber hose and the sand spreading valve, the valve mounting plate and the sand spreading valve are connected by mounting plate bolts, and a rubber gasket is provided between the valve mounting plate and the sand spreading valve; a fixing bend plate is provided on the side of the valve mounting plate, and four bend plate bolts are provided on the fixing bend plate, two of which connect the fixing bend plate and the valve mounting plate, and the other two bend plate bolts are connected to the vehicle body.

[0008] Furthermore, it also includes a steel pipe fixing plate, vehicle body bolts, and elastic washers; the steel pipe fixing plate is sleeved on the sand-spreading steel pipe, the steel pipe fixing plate is provided with two symmetrical vehicle body bolts, and an elastic washer is provided between the vehicle body bolts and the steel pipe fixing plate.

[0009] Furthermore, the sand-spreading steel pipe is welded to the steel pipe fixing plate, and the steel pipe fixing plate is fixed to the vehicle body by vehicle body bolts.

[0010] Furthermore, it also includes a sand box base and base bolts; the side of the sand box is provided with a sand box base, the sand box base is welded to the sand box, and the sand box base is connected to the vehicle body by base bolts.

[0011] Furthermore, it also includes a solenoid valve assembly; the air pipe is equipped with a solenoid valve assembly.

[0012] Furthermore, it also includes a drain valve, a safety valve, and a pressure gauge; the drain valve is located at the bottom of the gas storage tank, and the safety valve and the pressure gauge are respectively located at the top of the gas storage tank.

[0013] Furthermore, it also includes a one-way valve; the top tube is equipped with a one-way valve.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the sand spreading device for a dual-purpose road and rail traction vehicle is small in overall size, and all major components such as the sand spreading valve, solenoid valve group, air tank and air compressor are connected by air pipes, which makes it easy to make full use of space and arrange them in a distributed manner; the sand spreading solves the problem of the vehicle spinning and slipping due to the slippery track and low friction coefficient in rainy and snowy weather. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure through which the sand flows. In the diagram: 1. Sand box sealing cover, 2. Sand box base bolt, 3. Sand box, 4. Mounting plate bolt, 5. Glue hose, 6. Fixing bend plate, 7. Valve mounting plate, 8. Rubber gasket, 9. Sand spreading valve, 10. Outlet connector, 11. Lower glue hose, 12. Steel pipe fixing plate, 13. Sand spreading steel pipe, 14. Vehicle body bolt, 15. Elastic washer, 16. Solenoid valve assembly, 17. Air pipe, 18. Drain valve, 19. Air tank, 20. Air compressor, 21. Check valve, 22. Safety valve, 23. Pressure gauge, 24. Top pipe, 25. Bend plate bolt, 26. Base bolt, 27. No. 1 clamp, 28. No. 2 clamp, 29. No. 3 clamp, 30. No. 4 clamp. Detailed Implementation

[0016] To make the structure and function of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0017] See appendix Figure 1-2 A sand-spreading device for a dual-purpose road-rail tractor includes a sand box 3, an upper rubber hose 5, a sand-spreading valve 9, an outlet connector 10, a lower rubber hose 11, a sand-spreading steel pipe 13, a solenoid valve assembly 16, an air pipe 17, an air tank 19, and an air compressor 20. The bottom of the sand box 3 is connected to the top interface of the sand-spreading valve 9 via the upper rubber hose 5. The solenoid valve intermittently supplies air for intermittent sand spreading, with the interval time adjustable, generally controlled by a program to be about 1 second. The lower sand outlet of the sand-spreading valve 9 is threadedly connected to the outlet connector 10, and the outlet connector 10 is connected to the sand-spreading steel pipe 13 via the lower rubber hose 11. The air compressor 20 is connected to the air tank 19 via a top pipe 24, and the air tank 19 is connected to the middle interface of the sand-spreading valve 9 via the air pipe 17.

[0018] The air compressor 20 has a power of 1.5kw, is powered by the vehicle's battery, provides compressed air, and stores it in an air tank for later use.

[0019] Based on the above technical features, when the tractor needs to spread sand, the sand spreading valve 9, controlled by the sand spreading switch, opens the sand spreading air path. Sand enters the sand spreading valve 9 from the sand box and is divided into two paths: one path enters the sand-turning chamber of the sand spreading valve, blowing the sand out of the sand box 3; the other path sends the turned-out sand out of the sand spreading pipe 13. As long as the air pressure is within a given range (the minimum pressure for normal operation of the sand spreading valve 9 should be higher than 400 kPa), the airflow will expel the sand from the sand guide pipe, thus achieving the purpose of sand spreading. This allocation is intended to control the accuracy of the sand quantity and reduce waste.

[0020] It also includes a sand box sealing cover 1; the top of the sand box 3 is provided with a sand inlet, the sand inlet is provided with an external thread, and the sand box sealing cover 1 is provided with an internal thread that matches the external thread, and the sand inlet is sealed by the sand box sealing cover 1. This achieves a sealing effect to prevent the sand from getting damp and clumping.

[0021] It also includes clamp 27, clamp 28, clamp 29, and clamp 30. Clamp 27 and clamp 28 are installed on the upper rubber hose 5. Clamp 27 is located near the sand box 3, and clamp 28 is located near the sand spreading valve 9. The upper and lower ends of the upper rubber hose 5 are clamped and secured by clamp 4, which serves to seal and prevent detachment. The outlet connector 10 is clamped and secured to the lower rubber hose 11 by clamp 29, and the lower rubber hose 11 is clamped and secured to the sand spreading steel pipe 13 by clamp 30.

[0022] It also includes mounting plate bolts 4, fixing bend plate 6, valve mounting plate 7, rubber gasket 8, and bend plate bolts 25; a valve mounting plate 7 is provided between the rubber hose 5 and the sand spraying valve 9, the valve mounting plate 7 and the sand spraying valve 9 are connected by mounting plate bolts 4, and a rubber gasket 8 is provided between the valve mounting plate 7 and the sand spraying valve 9; a fixing bend plate 6 is provided on the side of the valve mounting plate 7, and four bend plate bolts 25 are provided on the fixing bend plate 6, two of which connect the fixing bend plate 6 and the valve mounting plate 7, and the other two bend plate bolts 25 are connected to the vehicle body.

[0023] It also includes a steel pipe fixing plate 12, a vehicle body bolt 14, and an elastic washer 15; the steel pipe fixing plate 12 is sleeved on the sand-spreading steel pipe 13, and two symmetrical vehicle body bolts 14 are provided on the steel pipe fixing plate 12, and an elastic washer 15 is provided between the vehicle body bolts 14 and the steel pipe fixing plate 12.

[0024] The sand-spreading steel pipe 13 is welded to the steel pipe fixing plate 12, and the steel pipe fixing plate 12 is fixed to the vehicle body by the vehicle body bolts 14.

[0025] It also includes a sand box base 2 and a base bolt 26; the side of the sand box 3 is provided with a sand box base 2, the sand box base 2 is welded to the sand box 3, and the sand box base 2 is connected to the vehicle body through the base bolt 26.

[0026] It also includes a solenoid valve assembly 16; the air pipe 17 is equipped with a solenoid valve assembly 16. The solenoid valve assembly 16 consists of four solenoid valves mounted on the same valve plate, which distribute high-pressure air to the four drive wheels to drive the sand-spreading valve 9 to work.

[0027] It also includes a drain valve 18, a safety valve 22, and a pressure gauge 23; the drain valve 18 is located at the bottom of the gas storage tank 19, and the safety valve 22 and the pressure gauge 23 are respectively located at the top of the gas storage tank 19.

[0028] The gas storage tank 19 has a capacity of 24L and can withstand a pressure of 1.25MPa. It is used to store high-pressure gas. The gas storage tank 19 is equipped with a safety valve 22 and a pressure gauge 23, and a drain valve 18 at the bottom to facilitate the periodic drainage of accumulated water and prevent internal corrosion of the tank.

[0029] It also includes a one-way valve 21; the top pipe 24 is equipped with a one-way valve 21. The air compressor 20 and the air tank 19 are isolated by the one-way valve 21 to prevent high-pressure gas from flowing back when the air compressor stops working.

[0030] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A sand-spreading device for a dual-purpose road-rail tractor, characterized in that: The system includes a sand box (3), an upper rubber hose (5), a sand spreading valve (9), an outlet connector (10), a lower rubber hose (11), a sand spreading steel pipe (13), a solenoid valve assembly (16), an air pipe (17), an air tank (19), an air compressor (20), and a top pipe (24). The bottom of the sand box (3) is connected to the top interface of the sand spreading valve (9) via the upper rubber hose (5). The lower sand outlet of the sand spreading valve (9) is threadedly connected to the outlet connector (10). The outlet connector (10) is connected to the sand spreading steel pipe (13) via the lower rubber hose (11). The air compressor (20) is connected to the air tank (19) via the top pipe (24). The air tank (19) is connected to the middle interface of the sand spreading valve (9) via the air pipe (17).

2. The sand-spreading device for a dual-purpose road-rail tractor as described in claim 1, characterized in that: It also includes a sand box sealing cover (1); the top of the sand box (3) is provided with a sand inlet, the sand inlet is provided with an external thread, the sand box sealing cover (1) is provided with an internal thread that matches the external thread, and the sand inlet is sealed by the sand box sealing cover (1).

3. The sand-spreading device for a dual-purpose road-rail tractor as described in claim 1, characterized in that: It also includes clamp No. 1 (27), clamp No. 2 (28), clamp No. 3 (29) and clamp No. 4 (30); clamp No. 1 (27) and clamp No. 2 (28) are set on the upper rubber tube (5), clamp No. 1 (27) is set near the sand box (3), clamp No. 2 (28) is set near the sand spreading valve (9), the outlet connector (10) and the lower rubber tube (11) are clamped and secured by clamp No. 3 (29), and the lower rubber tube (11) and the sand spreading steel pipe (13) are clamped and secured by clamp No. 4 (30).

4. A sand-spreading device for a dual-purpose road-rail tractor as described in claim 1, characterized in that: It also includes mounting plate bolts (4), fixing bends (6), valve mounting plates (7), rubber pads (8), and bend bolts (25); a valve mounting plate (7) is provided between the rubber hose (5) and the sand spraying valve (9), the valve mounting plate (7) and the sand spraying valve (9) are connected by mounting plate bolts (4), and a rubber pad (8) is provided between the valve mounting plate (7) and the sand spraying valve (9); a fixing bend (6) is provided on the side of the valve mounting plate (7), and four bend bolts (25) are provided on the fixing bend (6), two of which connect the fixing bend (6) and the valve mounting plate (7), and the other two bend bolts (25) are connected to the vehicle body.

5. A sand-spreading device for a dual-purpose road-rail tractor according to claim 1, characterized in that: It also includes a steel pipe fixing plate (12), a vehicle body bolt (14), and an elastic washer (15); the steel pipe fixing plate (12) is sleeved on the sand-spreading steel pipe (13), and two symmetrical vehicle body bolts (14) are provided on the steel pipe fixing plate (12), and an elastic washer (15) is provided between the vehicle body bolt (14) and the steel pipe fixing plate (12).

6. A sand-spreading device for a dual-purpose road-rail tractor according to claim 5, characterized in that: The sand-spreading steel pipe (13) is welded to the steel pipe fixing plate (12), and the steel pipe fixing plate (12) is fixed to the vehicle body by the vehicle body bolts (14).

7. A sand-spreading device for a dual-purpose road-rail tractor according to claim 1, characterized in that: It also includes a sand box base (2) and a base bolt (26); the side of the sand box (3) is provided with a sand box base (2), the sand box base (2) is welded to the sand box (3), and the sand box base (2) is connected to the vehicle body by a base bolt (26).

8. A sand-spreading device for a dual-purpose road-rail tractor as described in claim 1, characterized in that: It also includes a solenoid valve assembly (16); the air pipe (17) is provided with a solenoid valve assembly (16).

9. A sand-spreading device for a dual-purpose road-rail tractor according to claim 1, characterized in that: It also includes a drain valve (18), a safety valve (22) and a pressure gauge (23); the drain valve (18) is located at the bottom of the gas storage tank (19), and the safety valve (22) and the pressure gauge (23) are located at the top of the gas storage tank (19).

10. A sand-spreading device for a dual-purpose road-rail tractor according to claim 1, characterized in that: It also includes a one-way valve (21); the top tube (24) is provided with a one-way valve (21).

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