Railway vehicle sanding test measuring device

Abstract

The invention discloses a railway vehicle sanding test measuring device, which comprises a box body and a measuring tube, the measuring tube is sleeved with a clamp body, the two sides of the clamp body are respectively provided with a U-shaped plate, a pin is arranged between the U-shaped plates, the pin is sleeved with a torsion spring and a clamp, the clamp is provided with a fixing hole, and the fixing hole is connected with the box body. One end of the torsion spring is clamped in the fixing hole of the clamp, the other end of the torsion spring is fixed on the U-shaped plate, and the end part of each clamp is provided with a U-shaped claw corresponding to the sanding opening in structure. According to the sand spraying device, the special clamp for the sand spraying opening is adopted, the effect of fixing the measuring pipe is achieved, the measuring pipe can be prevented from falling off in the measuring process, the effect of protecting the sand spraying device is achieved, and the situation that the measuring pipe damages the sand spraying device in the measuring process can be avoided.

Description

Technical Field

[0001] This application relates to a measuring device for rail vehicles, and particularly to a measuring device for sand-spreading tests of rail vehicles. Background Art

[0002] Rail vehicles use the rotation of wheels to move by means of the friction between the wheels and the rails. In bad weather such as rain and snow, the poor surface condition of the rails will lead to a decrease in adhesion, resulting in wheel slip or locking. Therefore, a sand-spreading device is installed on the vehicle. During the movement of the vehicle, a uniform layer of grit is spread on the wheel-rail surface through the sand-spreading device, which can effectively improve the adhesion between the wheels and the rails and avoid wheel slip or locking.

[0003] In order to ensure that the sand-spreading device of the rail vehicle can spread sand evenly, it is necessary to test the sand-spreading speed of the sand-spreading device. The existing sand-spreading tests lack a dedicated device. During the test, the staff directly uses a bucket to collect the test sand and observes the change of the sand-spreading amount by eyes and feeling. The operation is complex. During the process of collecting with the bucket, the test sand is likely to be lost, resulting in inaccurate measurement. At the same time, there is no special fixture for the sand-spreading port of the sand-spreading device, which is likely to damage the sand-spreading device. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem of inaccurate manual observation of the sand-spreading speed of the sand-spreading device, and to provide an improved fixture and a measuring device for sand-spreading tests of rail vehicles.

[0005] To achieve one of the above purposes, some embodiments of the present invention provide a measuring device for sand-spreading tests of rail vehicles, including a box body and a measuring pipe. A weight sensor is provided at the bottom of the box body, and the weight sensor is used to detect the weight of the box body. The first end of the measuring pipe is communicated with the upper part of the box body, and the second end of the measuring pipe is communicated with the sand-spreading port of the sand-spreading device. A clamp body is sleeved on the measuring pipe. U-shaped plates are respectively provided on both sides of the clamp body. A pin is provided between each pair of U-shaped plates. A torsion spring and a clamp are sleeved on the pin. A fixing hole is provided on the clamp. One end of the torsion spring is stuck in the fixing hole of the clamp, and the other end of the torsion spring is fixed on the U-shaped plate. The end of each clamp is provided with a U-shaped claw corresponding to the configuration of the sand-spreading port.

[0006] In some embodiments, a display is provided on the outer side of the box body, and the display is electrically connected to the weight sensor.

[0007] In some embodiments, the clamp body is threadedly sleeved on the measuring pipe.

[0008] In some embodiments, a box cover is provided on the top of the box body, and the box cover is communicated with the measuring pipe.

[0009] In some embodiments, a measuring bucket is slidably and detachably arranged in the box body, and the upper end of the measuring bucket is cooperatively connected with the box cover.

[0010] In some embodiments, the clamp is S-shaped or of other shapes.

[0011] In some embodiments, it further includes a vehicle frame. Slideways are arranged inwardly on both sides of the vehicle frame, wheels are arranged outwardly on both sides of the vehicle frame, a support plate is arranged at the bottom of the box body, the weight sensor is embedded in the support plate, and both sides of the support plate are slidably connected with the slideways of the vehicle frame.

[0012] In some embodiments, the measuring tube is communicated with the box cover through a joint, and the joint is made of an elastic material.

[0013] In some embodiments, the measuring tube is made of rubber, and the joint is connected with the measuring tube by thermoplastic deformation.

[0014] In some embodiments, the measuring tube, the joint, the box cover, the measuring bucket and the box body are made of transparent materials.

[0015] In some embodiments, an annular protrusion is arranged on the outer side of the top edge of the measuring bucket, and an annular support part is arranged on the inner side of the top of the box body. The annular protrusion is configured to be stuck on the support part of the box body.

[0016] In some embodiments, multiple groups of the support plates and the box bodies are arranged on the vehicle frame.

[0017] In view of the lack of a dedicated device for the sand spraying test of rail vehicles in this application, a measuring device for the sand spraying test of rail vehicles is designed. The sand spraying device proposed in this application adopts a special fixture for the sand spraying port, which not only plays a role in fixing the measuring tube, can avoid the detachment of the measuring tube during the measurement process, but also has a role in protecting the sand spraying device, can avoid the measuring tube from damaging the sand spraying device during the measurement process. During the sand spraying test, the measuring tube is docked with the sand spraying port of the sand spraying device, and the test sand enters the box body through the measuring tube. A weight sensor and a display are arranged on the box body. By observing the numerical changes on the display, the sand spraying speed of the sand spraying device can be objectively and accurately obtained, improving the measurement accuracy. Description of the Drawings

[0018] Figure 1 is the overall exploded structure diagram of the measuring device for the sand spraying test of the rail vehicle of the present invention.

[0019] Figure 2 is the perspective view of the box body and the support plate of the measuring device for the sand spraying test of the rail vehicle of the present invention.

[0020] Figure 3It is a connection structure diagram of the U-shaped plate and the clamp of the sand sprinkling test measuring device for rail vehicles of the present invention.

[0021] Figure 4 It is an exploded structure diagram of the fixture body and the clamp of the sand sprinkling test measuring device for rail vehicles of the present invention.

[0022] Figure 5 It is a three-dimensional view of the frame of the sand sprinkling test measuring device for rail vehicles of the present invention, on which two sets of measuring components are arranged.

[0023] In the figure: 1, measuring tube; 2, joint; 3, box cover; 4, measuring bucket; 4-1, protrusion; 5, box body; 5-1, support part; 6, frame; 7, wheel; 8, clamp; 9, torsion spring; 10, pin; 11, fixture body; 12, display; 13, weight sensor; 14, U-shaped plate; 15, fixing hole; 16, support plate; 17, slideway; 18, U-shaped claw; 19, handrail. Detailed implementation manners

[0024] The following will describe in detail the specific embodiments of the present application with reference to the accompanying drawings.

[0025] As Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, an embodiment of the present application provides a sand sprinkling test measuring device for rail vehicles, including a box body 5 and a measuring tube 1. A weight sensor 13 is provided at the bottom of the box body 5, and the weight sensor 13 is used to detect the weight of the box body 5. A display 12 is arranged outside the box body 5, and the display 12 is electrically connected to the weight sensor 13. The display 12 is used to display the value measured by the weight sensor 13. The measuring bucket 4 is slidably and detachably installed in the box body 5, which is convenient to take out the measuring bucket 4 after the test to recycle the test sand. An annular support part 51 is provided on the inner side of the top of the box body 5, and an annular protrusion 41 is provided on the outer side of the top edge of the measuring bucket 4. The annular protrusion 41 is configured to be able to be stuck on the support part 51. The upper ends covering the box body 5 and the measuring bucket 4 are both connected with the box cover 3 in a matching manner to realize the sealing of the space inside the box body 5, prevent the test sand from emerging from the box body 5, improve the measurement accuracy, and avoid environmental pollution.

[0026] The box cover 3 as a whole can be conical, and a joint 2 is connected to its top. The joint 2 is connected to the first end of the measuring tube 1, and the second end of the measuring tube 1 is connected to the sand sprinkling port of the sand sprinkling device. The joint 2 and the measuring tube 1 can both be made of elastic materials such as rubber, and the joint 2 and the measuring tube 1 can be connected by thermoplastic deformation. This connection method not only ensures the sealing between the joint 2 and the measuring tube 1, preventing the test sand from leaking from the connection between the joint 2 and the measuring tube 1, but also allows the joint 2 to be twisted arbitrarily, making it more convenient for the measuring tube 1 to be docked with the sand sprinkling port of the sand sprinkling device.

[0027] AsFigure 5 As shown, a clamping body 11 can be sleeved on the measuring tube 1 through threaded connection or snap connection. For example, Figure 4 As shown, U-shaped plates 14 are provided on both sides of the clamping body 11. For example, Figure 3 , Figure 4 As shown, a pin 10 is provided between each pair of U-shaped plates 14. A torsion spring 9 and a clamp 8 are sleeved on the pin 10. A fixing hole 15 is provided on the clamp 8. One end of the torsion spring 9 is stuck in the fixing hole 15 of the clamp 8, and the other end of the torsion spring 9 is fixed on the U-shaped plate 14. Each clamp 8 can be in an S shape or other linear or curved configurations. A U-shaped claw 18 corresponding to the configuration of the sand spraying port is provided at the end of each clamp 8.

[0028] The measuring tube 1, the joint 2, the box cover 3, the measuring bucket 4 and the box body 5 can be made of transparent materials. For example, the box cover 3, the measuring bucket 4 and the box body 5 can be made of transparent materials such as acrylic, and the measuring tube 1, the joint 2, etc. can be made of rubber or silica gel materials to facilitate the observation of the entire measuring process.

[0029] For example, Figure 1 , Figure 5 As shown, a support plate 16 is provided at the bottom of the box body 5, and the weight sensor 13 is embedded in the support plate 16; slideways 17 are provided on the inner sides of both sides of the vehicle frame 6, and both sides of the support plate 16 are slidably connected to the slideways 17 of the vehicle frame 6. For example, Figure 5 As shown, two groups of support plates 16 and box bodies 5 are provided on the vehicle frame 6. The support plates 16 and the vehicle frame 6 can be easily disassembled through the slideways. The number of the support plates 16 and the box bodies 5 can be adjusted according to the actual situation. Wheels 7 are provided on the outer sides of both sides of the vehicle frame 6. The wheels 7 can also be universal wheels; a handrail 19 is further provided at one end of the vehicle frame 6 to facilitate pushing and pulling and the movement of the device.

[0030] The working principle of the measuring device of this application is as follows: Prepare the measuring device for the sand spraying test of the rail vehicle. At the same time, pinch the tails of the clamps 8 on both sides of the clamping body 11. By using the lever principle through the pin 10, the U-shaped claws 18 of the clamps 8 are opened, and the measuring tube 1 is docked with the sand spraying port of the sand spraying device. Release the clamps 8, and the U-shaped claws 18 of the clamps 8 are clamped on the sand spraying port of the sand spraying device through the torsion spring 9. Start the sand spraying device. The sand sprayed by the sand spraying device enters the measuring bucket 4 through the measuring tube 1 and the joint 2. The weight sensor 13 senses the change in weight and displays the value on the display 12. Through the digital change on the display 12, it can be accurately judged whether the sand spraying speed of the sand spraying device is uniform, and at the same time, it can be judged whether the working performance of the sand spraying device is low-speed sand spraying or high-speed sand spraying. If it is low-speed sand spraying, the numerical change on the display 12 will be less. If it is high-speed sand spraying, the numerical change on the display 12 will be more; after the sand spraying test is completed, open the box cover 3 and take out the measuring bucket 4, then the test sand stored in the measuring bucket 4 can be poured out to prepare for the next measurement.

[0031] Some embodiments of the present invention provide a special fixture for the sand spreading opening of a rail vehicle sand spreading device, which not only plays a role in fixing the measuring pipe, can prevent the measuring pipe from falling off during the measurement process, but also plays a role in protecting the sand spreading device, can prevent the measuring pipe from damaging the sand spreading device during the measurement process.

[0032] Some other embodiments of the present invention provide a rail vehicle sand spreading test measuring device, which solves the current situation of observing the change of sand spreading amount by naked eyes and feeling and inaccurate measurement. The operation is simple, and the sand spreading speed of the sand spreading device can be objectively and accurately obtained by observing the numerical change on the display, improving the measurement accuracy.

[0033] The advantages of the present invention compared with the prior art include: the outlet end of the measuring pipe is provided with a clamp body, a U-shaped plate, a torsion spring and a clamp. By pinching the tail end of the clamp, it is convenient for the clamp to clamp the sand spreading opening of the sand spreading device, playing a role in fixing the measuring pipe, and can prevent the measuring pipe from falling off during the measurement process; by setting a weight sensor and a display, the sand spreading speed of the sand spreading device can be objectively, accurately and timely known; the measuring bucket in the box body can be conveniently taken out, facilitating the recovery of the test sand after the test; the sand spreading test is carried out in a sealed box body, which can prevent impurities from being mixed into the test sand during the test, improving the measurement accuracy; by slidingly connecting the support plate with the frame slideway, it is convenient for the overall installation and disassembly of the measuring component, and it is convenient to replace the number and specification of the measuring components according to the actual situation, improving the adaptability of the test device; the measuring pipe, the joint, the box cover, the measuring bucket and the box body are made of transparent materials, and the whole sand spreading measurement process can be observed more intuitively; both the joint and the measuring pipe are made of elastic materials, which is convenient for freely twisting the direction to align the measuring pipe and the clamp with the sand spreading opening of the sand spreading device.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A sand spreading test measuring device for a railway vehicle, characterized in that: It includes a box body and a measuring tube, the first end of the measuring tube is connected to the upper part of the box body, and the second end of the measuring tube is connected to the sand spreading port of the sand spreading device; a clamp body is sleeved on the measuring tube, and U-shaped plates are respectively provided on both sides of the clamp body, a pin is provided between each of the U-shaped plates, a torsion spring and a clamp are sleeved on the pin, a fixing hole is provided on the clamp, one end of the torsion spring is clamped in the fixing hole of the clamp, and the other end of the torsion spring is fixed to the U-shaped plate, and each end of the clamp is provided with a U-shaped claw corresponding to the configuration of the sand spreading port.

2. The rail vehicle sand spreading test measuring device according to claim 1, characterized in that: The clamp is S-shaped.

3. The rail vehicle sand spreading test measuring device according to claim 1, characterized in that: The clamp body is threadedly sleeved on the measuring tube.

4. The rail vehicle sand spreading test measuring device according to claim 1, characterized in that: The top of the box body is covered with a box cover, which is connected to the measuring tube; a measuring barrel is slidably and detachably provided in the box body, and the upper end of the measuring barrel is cooperatively connected to the box cover; the measuring tube and the box cover are connected through a joint, and the joint is made of elastic material.

5. The rail vehicle sand spreading test measuring device according to claim 4, characterized in that: An annular protrusion is provided on the outer side of the top edge of the measuring barrel, and an annular supporting portion is provided on the inner side of the top of the box body. The annular protrusion is configured to be clamped on the supporting portion of the box body.

6. The rail vehicle sand spreading test measuring device according to claim 4, characterized in that: The measuring tube is made of rubber, and the joint is connected to the measuring tube by thermoplastic deformation.

7. The rail vehicle sand spreading test measuring device according to claim 4, characterized in that: The measuring tube, the joint, the box cover, the measuring barrel and the box body are made of transparent materials.

8. The rail vehicle sand spreading test measuring device according to any one of claims 1 to 7, characterized in that: A weight sensor is provided at the bottom of the box body, and the weight sensor is used to detect the weight of the box body; a display is provided on the outside of the box body, and the display is electrically connected to the weight sensor.

9. The rail vehicle sand spreading test measuring device according to claim 8, characterized in that: It also includes a frame, with slideways provided inwardly on both sides of the frame, and wheels provided outwardly on both sides of the frame. A support plate is provided at the bottom of the box body, the weight sensor is embedded in the support plate, and both sides of the support plate are slidably connected to the slideways of the frame.

10. The rail vehicle sand spreading test measuring device according to claim 9, characterized in that: A plurality of groups of the support plates and the boxes are arranged on the frame.

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