Uniform sand discharging device for sand box of rail transit vehicle

Abstract

The utility model relates to a sand discharging device, in particular to a uniform sand discharging device for a sand box of a rail transit vehicle. Comprising a sand box and a sander located at a sand outlet of the sand box. A vibration part is arranged on the sand box close to the sand outlet; a power source of the vibration component is connected with a power source of the sander in parallel, and when the sander operates, the vibration component acts. According to the utility model, the vibration component is arranged at the sand box close to the sand outlet, and the vibration component simultaneously runs along with the sander; the problem of poor flowability caused by freezing, caking or mutual extrusion of sand in the sand box can be solved through vibration of the vibration component, and the problem that adverse effects are generated on safe operation of rail transit vehicles due to non-uniform sand discharging is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand outlet device, concretely relates to a rail transit vehicle sand box even sand outlet device. BACKGROUND

[0002] At present, rail transit locomotives, high-speed trains, bullet trains, subways and engineering vehicles widely adopt sand boxes for sanding operation to enhance the friction between the wheel and the rail and ensure the safe running of the vehicle under various weather and road conditions. The sand box is mainly divided into two types: gravity type sand box and pressure difference type sand box.

[0003] In the gravity type sand box, sand flows out through the sand outlet by its own gravity and is spread on the track by the sand spreader. In the pressure difference type sand box, the flow of sand is controlled by the pressure difference. Although the two types of sand boxes differ in design, they all face some common challenges in use.

[0004] Firstly, due to the presence of moisture in the sand box, the sand is prone to freezing and caking, which not only affects the flowability of the sand but also may cause uneven sanding. Secondly, as the vehicle runs, the sand density in the sand box may change, and the mutual extrusion between the sand particles may also cause poor flowability. These problems may cause uneven falling of sand in the sand box, resulting in uneven sanding at the sand outlet.

[0005] Uneven sanding can adversely affect the safe operation of rail transit vehicles. On the one hand, if the sanding is uneven during start-up, the friction between the wheel and the rail may be insufficient, causing the wheelset to slide with the rail, thereby wearing the rail or the wheelset. On the other hand, if the sanding is unstable when the vehicle needs to speed up in rainy or snowy weather, it may also cause insufficient friction, leading to safety problems. More critically, when the vehicle needs to brake, unstable sanding can cause insufficient friction between the wheel and the rail, thereby prolonging the braking distance. This not only may endanger the safety of the vehicle but also may cause accidents.

[0006] Therefore, it is urgent to provide a rail transit vehicle sand box even sand outlet device to solve the above problems. SUMMARY

[0007] The utility model aims at solving the technical problem that uneven sanding at the sand outlet of the sand box in the prior art adversely affects the safe operation of rail transit vehicles, and provides a rail transit vehicle sand box even sand outlet device.

[0008] To solve the above technical problems, the technical solution provided by the utility model is as follows:

[0009] A rail transit vehicle sand box even sand outlet device, comprising a sand box and a sand spreader located at the sand outlet of the sand box.

[0010] The sand box is provided with a vibrating component near the sand outlet.

[0011] The power supply of the vibrating component is connected in parallel with the power supply of the sand distributor, and the vibrating component operates when the sand distributor operates.

[0012] Further, the sand box is provided with an inner built-in fixing frame on the inner side wall near the sand outlet, and the vibrating component is arranged on the inner built-in fixing frame.

[0013] Further, the sand box is provided with a vibrating component on the inner side wall where the sand outlet is located.

[0014] Further, the vibrating component is a vibrating motor, which is installed on the inner side wall or the outer side wall of the sand box near the sand outlet.

[0015] Further, the vibrating component comprises a vibration source and a vibration rod arranged at the output end of the vibration source.

[0016] The vibration source is fixedly installed on the outer side wall of the sand box near the sand outlet, and the vibration rod extends into the sand box.

[0017] Further, the vibration source is fixedly installed on the outer side wall of the sand box near the sand outlet through a mounting frame.

[0018] Further, the sand box is a differential pressure type sand box or a gravity type sand box.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] The rail transit vehicle sand box uniform sand outlet device provided by the present application is provided with a vibrating component near the sand outlet of the sand box, and the vibrating component operates simultaneously with the sand distributor; the problem of poor flowability of the sand in the sand box caused by freezing, caking or mutual extrusion of the sand can be solved through vibration of the vibrating component, and the problem of adverse effect on the safe operation of the rail transit vehicle caused by uneven sand outlet can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure schematic view of the vibrating component located on the inner side wall of the sand box in the embodiment 1 of the present application.

[0022] Figure 2 It is a structure schematic view of the vibrating component located on the outer side wall of the sand box in the embodiment 2 of the present application.

[0023] Figure 3 It is a structure schematic view of the vibrating source installed on the outer side wall of the sand box in the embodiment 3 of the present application.

[0024] Figure 4Structure schematic view of the vibration source fixed on the outer side wall of the sand box through the mounting frame in the embodiment 4 of the present utility model;

[0025] Figure 5 Structure schematic view of the vibration part fixed on the inner side wall of the sand box where the sand outlet is located in the embodiment 5 of the present utility model;

[0026] Figure 6 Structure schematic view of the vibration part located on the inner side wall of the sand box in the embodiment 6 of the present utility model;

[0027] Figure 7 Structure schematic view of the vibration part located on the outer side wall of the sand box in the embodiment 7 of the present utility model;

[0028] Figure 8 Structure schematic view of the vibration source mounted on the outer side wall of the sand box in the embodiment 8 of the present utility model;

[0029] Figure 9 Structure schematic view of the vibration source fixed on the outer side wall of the sand box through the mounting frame in the embodiment 9 of the present utility model;

[0030] Figure 10 Structure schematic view of the vibration part fixed on the sand outlet of the sand box through the built-in fixing frame in the embodiment 10 of the present utility model.

[0031] Mark explanation: 1, sand box; 2, sand outlet; 3, sand distributor; 4, built-in fixing frame; 5, vibration motor; 6, vibration source; 7, vibration rod; 8, mounting frame. Specific implementation

[0032] The technical solutions in the present utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiments are only part of the embodiments of the present utility model, not all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the present utility model.

[0033] A sand box uniform sand outlet device of rail transit vehicle, comprising a sand box 1 and a sand distributor 3 located at a sand outlet 2 of the sand box 1; the sand box 1 is provided with a vibration part near the sand outlet 2; the power supply of the vibration part is connected in parallel with the power supply of the sand distributor 3, and the vibration part acts when the sand distributor 3 operates.

[0034] In the actual application process, the driver of the rail transit vehicle steps on the sand distributor 3 foot switch, and the sand distributor 3 and the vibration part act simultaneously, the sand distributor 3 is opened, and the vibration part drives the sand box 1 to vibrate to cause the frozen, caked or unevenly flowing sand in the sand box 1 to scatter, thereby realizing uniform sand outlet.

[0035] The following specific examples are given.

[0036] Example 1

[0037] As shown in Figure 1 , the vibrating component is a vibrating motor 5, which is installed on the inner side wall of the differential pressure sand box 1 near the sand outlet 2.

[0038] Example 2

[0039] Example 2 differs from Example 1 in that, as shown in Figure 2 , the vibrating motor 5 is installed on the outer side wall of the differential pressure sand box 1 near the sand outlet 2.

[0040] Example 3

[0041] Example 3 differs from Example 1 in that, as shown in Figure 3 , the vibrating component includes a vibration source 6 and a vibration rod 7 at the output end of the vibration source 6.

[0042] The vibration source 6 is fixedly installed on the outer side wall of the differential pressure sand box 1 near the sand outlet 2, and the vibration rod 7 extends into the inside of the differential pressure sand box 1.

[0043] Example 4

[0044] Example 4 differs from Example 3 in that, as shown in Figure 4 , the vibration source 6 is fixed to the outer side wall of the differential pressure sand box 1 near the sand outlet 2 through a mounting bracket 8.

[0045] Example 5

[0046] Example 5 differs from Example 1 in that, as shown in Figure 5 , the vibrating motor 5 is provided on the inner side wall of the differential pressure sand box 1 where the sand outlet 2 is located.

[0047] Example 6

[0048] As shown in Figure 6 , the vibrating component is a vibrating motor 5, which is installed on the inner side wall of the gravity sand box 1 near the sand outlet 2.

[0049] Example 7

[0050] Example 7 differs from Example 6 in that, as shown in Figure 7 , the vibrating motor 5 is installed on the outer side wall of the gravity sand box 1 near the sand outlet 2.

[0051] Example 8

[0052] Example 8 differs from Example 6 in that, as shown in Figure 8As shown in the figure, the vibration component comprises a vibration source 6 and a vibration rod 7 at the output end of the vibration source 6.

[0053] The vibration source 6 is fixedly installed on the outer side wall of the gravity sand box 1 close to the sand outlet 2, and the vibration rod 7 extends into the interior of the gravity sand box 1.

[0054] Embodiment 9

[0055] Embodiment 9 differs from embodiment 8 in that, as shown in the figure, the vibration source 6 is fixed on the outer side wall of the gravity sand box 1 close to the sand outlet 2 through a mounting bracket 8. Figure 9

[0056] Embodiment 10

[0057] Embodiment 10 differs from embodiment 6 in that, as shown in the figure, an inner mounting bracket 4 is arranged on the inner side wall of the gravity sand box 1 close to the sand outlet 2, and the vibration component is arranged on the inner mounting bracket 4. Figure 10

[0058] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any change or replacement within the technical scope disclosed by the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.​​

Claims

1. A device for uniformly discharging sand from a sand box in a rail transit vehicle, characterized in that: The sand box (1) and the sand distributor (3) at the sand outlet (2) of the sand box (1); The sand box (1) is provided with a vibration component near the sand outlet (2); The power supply of the vibration component is connected in parallel with the power supply of the sand distributor (3), and the vibration component operates when the sand distributor (3) operates.

2. The uniform sand discharge device for a sand box of a rail transit vehicle according to claim 1, characterized in that: The sand box (1) is provided with an internal fixing frame (4) on the inner side wall near the sand outlet (2), and the vibration component is arranged on the internal fixing frame (4).

3. The uniform sand discharge device for a sand box of a rail transit vehicle according to claim 1, characterized in that: The sand box (1) is provided with a vibration component on the inner side wall of the sand outlet (2).

4. The uniform sand discharge device for a sand box of a rail transit vehicle according to any one of claims 1 to 3, characterized in that: The vibration component is a vibration motor (5), which is installed on the inner side wall or the outer side wall of the sand box (1) near the sand outlet (2).

5. The uniform sand ejection device for a sand box of a rail transit vehicle according to claim 1, characterized in that: The vibration component includes a vibration source (6) and a vibration rod (7) at the output end of the vibration source (6). The vibration source (6) is fixedly installed on the outer side wall of the sand box (1) near the sand outlet (2), and the vibration rod (7) extends into the interior of the sand box (1).

6. The uniform sand ejection device for a sand box of a rail transit vehicle according to claim 5, characterized in that: The vibration source (6) is fixedly installed on the outer side wall of the sand box (1) near the sand outlet (2) through a mounting frame (8).

7. The uniform sand ejection device for a sand box of a rail transit vehicle according to claim 1, characterized in that: The sand box (1) is a differential pressure type sand box or a gravity type sand box.

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