Position acquisition device for operating valve of brake

Abstract

The utility model discloses a brake operating valve position acquisition device. The acquisition device comprises a brake valve middle shaft, a first fixed supporting block, a second fixed supporting block, a first position detector and a second position detector, the first fixed supporting block is arranged on the outer wall, close to the brake end of the brake valve center shaft, of the brake valve center shaft in a sleeving mode, the first position detectors are arranged below or above the edge of the first fixed supporting block, and the second fixed supporting block is arranged in front of the movable collecting end of the brake valve center shaft. The second position detector is arranged in the second fixed supporting block in a penetrating mode in the axial direction of the brake valve center shaft, so that the second position detector senses position information of movement of the brake valve center shaft in the axis direction. The position information of the brake valve can be directly obtained.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway locomotive brake control, and specifically relates to a brake control valve position acquisition device. Background Art

[0002] The vehicle air brake is a device that uses compressed air to control the braking and release of the train, and is an important part of the train's braking system. The working principle is to control the release and transmission of compressed air to change the air pressure in the brake cylinder, thereby producing a braking or release effect. At present, the brake control valves of the YZ-1 air brake mainly used in domestic large-scale track maintenance locomotives include automatic brake valves (large gates) and individual brake valves (small gates). Each valve has four positions (brake position, release position, operation position, pressure holding position) and a downward pressure release position; the position of the brake control valve itself determines the pressure distribution of the brake system. The brake valve of the air brake system uses a mechanical structure to control the pressure distribution of the air. It is impossible to directly monitor the position of the control valve, and thus it is impossible to evaluate the operator's compliance.

[0003] In the field of simulator applications, the position of the brake valve needs to be monitored in real time during the training and teaching process. The position of the control valve is used to simulate the pressure of the brake system to provide standardized guidance to the trainees. However, the brake valve of the original mechanical mechanism cannot provide position information for the simulator, and thus the position information of the brake valve cannot be directly obtained. Therefore, the control valve of the mechanical structure needs to be modified so that the brake valve position information can be quickly obtained. This has become an urgent technical problem that needs to be solved for the control valve of the air brake machine. Utility Model Content

[0004] The purpose of the utility model is to provide a brake control valve position acquisition device. According to the acquisition device of the utility model, the position of the control valve can be directly monitored to obtain the position information of the brake operation, thereby enabling the operator to evaluate the standardization of the control valve and improve the stability and reliability of the operation. To achieve the above purpose, the utility model adopts the following technical effects:

[0005] According to one aspect of the utility model, the utility model provides a brake operating valve position acquisition device, the acquisition device includes a brake valve central axis, a first fixed support block, a second fixed support block, a first position detector, a second position detector and a brake valve handle vertically connected to the outer wall of the brake end of the brake valve central axis; the first fixed support block is sleeved on the outer wall of the brake valve central axis close to the side of the brake valve handle, the first position detector is arranged below or above the edge of the first fixed support block, the second fixed support block is arranged in front of the moving acquisition end of the brake valve central axis, and the second position detector is arranged in the second fixed support block along the axial direction of the brake valve central axis, so that the second position detector senses the position information of the brake valve central axis moving in the axial direction.

[0006] The above solution is further preferred in that a fixed support plate for supporting the first position detector is provided below an edge of the first fixed support block.

[0007] The above scheme is further preferred in that the first fixed support block is a Z-shaped support block, and a sliding mounting hole for being sleeved on the outer wall of the brake end of the brake valve center axis is provided on one side of the Z-shaped support block, and the first position detector is provided on a fixed support plate provided below the edge of the other side of the Z-shaped support block.

[0008] The above scheme is further preferred, wherein a fastening screw is provided on the outer wall of the Z-shaped support block and extends vertically into the sliding mounting hole, and the Z-shaped support block is fixed to the central axis of the brake valve by a fastening screw perpendicular to the central axis of the brake valve, and the first position detector is composed of a first proximity switch and a second proximity switch arranged on the fixed support plate.

[0009] The above solution is further preferred, wherein a linear movement detection hole is provided on the surface of the second fixed support block and is through-hole along the axial direction of the brake valve center axis, and the second position detector is provided through-hole in the second fixed support block.

[0010] The above solution is further preferred in that a buffer support spring is provided on the surface of the second fixed support block and at the opening position of the linear movement detection hole, which is pressed against the moving collection end of the brake valve central axis.

[0011] The above solution is further preferred in that the second position detector is a third proximity switch arranged in the linear movement detection hole.

[0012] To sum up, since the utility model adopts the above-mentioned technical solution, the utility model has the following technical effects: the control valve position acquisition device of the utility model realizes the monitoring of the operation process of mechanical components, which can better provide safety guarantees for the driving operation of large-scale road maintenance machinery; and in railway locomotive simulation applications, the position signal of the control valve can be obtained more conveniently, providing efficient data support for the simulation system, improving the simulation degree of the system, and enhancing the stability and reliability of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a brake control valve position acquisition device of a utility model;

[0014] In the accompanying drawings, there are the brake valve center axis 1, the first fixed support block 2, the fastening screw 3, the fixed support plate 4, the first proximity switch 5, the second proximity switch 6, the buffer support spring 7, the second fixed support block 8, the third proximity switch 9, the brake valve handle 10, and the linear movement detection hole 80. DETAILED DESCRIPTION

[0015] To make the objectives, technical solutions, and advantages of the utility model more clearly understood, the utility model is further described below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in this specification are merely intended to help readers gain a thorough understanding of one or more aspects of the utility model, and these aspects of the utility model can be implemented even without these specific details.

[0016] like Figure 1As shown, according to a brake operating valve position acquisition device provided by the utility model, the acquisition device includes a brake valve axis 1, a first fixed support block 2, a second fixed support block 8, a first position detector, a second position detector and a brake valve handle 10 located on the outer wall of the brake end vertically connected to the brake valve axis 1; the first fixed support block 2 is sleeved on the outer wall of the brake valve axis 1 on the side close to the brake valve handle 10, and the first position detector is arranged below or above the edge of the first fixed support block 2. The first position detector is arranged on the valve body for detecting the position of the first fixed support block 2 rotating with the brake valve axis 1, the second fixed support block 8 is arranged in front of the moving acquisition end of the brake valve axis 1, and the second position detector is arranged in the second fixed support block 8 along the axial direction of the brake valve axis 1, so that the second position detector senses the position information of the brake valve axis 1 moving in the axial direction; a fixed support plate 4 for supporting the first position detector is provided below the edge of the first fixed support block 2, and the first position detector is fixed to the valve body through the fixed support plate 4, thereby obtaining; in this utility model In the new invention, taking the brake operating valve (DK type air brake valve housing) of the YZ-1 type air brake machine as an example, the brake valve central axis 1, the first fixed support block 2, the second fixed support block 8, the first position detector, and the second position detector are arranged in the DK type air brake valve housing, and the brake valve handle 10 is located outside the DK type air brake valve and on the outer wall of the brake end vertically connected to the brake valve central axis 1. The operator drives the brake valve central axis 1 to rotate by operating the brake valve handle 10, thereby driving the first fixed support block 2 to rotate. In the process of the first fixed support block 2 rotating with the brake valve central axis 1, the edge of the first fixed support block 2 approaches the first position detector on the surface of the fixed support plate 4 or leaves the first position detector on the surface of the fixed support plate 4, generating an approach or departure detection signal, thereby detecting the corresponding operating position of the brake valve central axis 1 through the first position detector; in the process of the operator pressing the brake valve central axis 1 by operating the brake valve handle 10, the brake valve central axis 1 moves downward, thereby generating a downward pressure approach signal with the second position detector, realizing the collection of the downward pressure action, and thus collecting and obtaining the operating position information of the brake valve handle 10.

[0017] In this utility model, if Figure 1 As shown, the first fixed support block 2 is a Z-shaped support block, and a sliding mounting hole 20 for being sleeved on the outer wall of the brake end of the brake valve center axis 1 is provided on one side of the Z-shaped support block, and the first position detector is provided on the fixed support plate 4 provided below the edge of the other side of the Z-shaped support block; a fastening screw 3 vertically extending into the sliding mounting hole 20 is provided on the outer wall of the Z-shaped support block, and the Z-shaped support block is fixed to the brake valve center axis 1 by the fastening screw 3 perpendicular to the brake valve center axis 1, and the first position detector consists of a first proximity switch 5 and a second proximity switch 6 provided on the fixed support plate 4.

[0018] In this utility model, if Figure 1 As shown, a linear movement detection hole 80 is set on the surface of the second fixed support block 8 and along the axial direction of the brake valve central axis 1, and the second position detector is passed through the linear movement detection hole 80 set in the second fixed support block 8; a buffer support spring 7 is set on the surface of the second fixed support block 8 and at the opening position of the linear movement detection hole 80, which is squeezed against the moving collection end of the brake valve central axis 1, and the buffer support spring 7 is connected to the second fixed support block 8; the second position detector is a third proximity switch 9 set in the linear movement detection hole 80; the second fixed support block 8 adopts a hexagonal nut structure, and the hexagonal nut serves as the bottom sealing nut of the air brake valve housing, which not only bears the bearing pressure of the brake valve central axis 1, but also is used to fix the third proximity switch 9 at the bottom.

[0019] In this utility model, if Figure 1 As shown, the proximity signals collected by the first proximity switch 5, the second proximity switch 6, and the third proximity switch 9 are respectively transmitted to the air brake system of the air brake, thereby determining the position of the brake valve shaft 1 and obtaining the control valve position information. The brake valve handle 10 at the upper end of the brake valve shaft 1 is responsible for rotating the various connecting parts to achieve the functions of each position. At the same time, pressing the brake valve handle 10 downward can drive the shaft downward to realize the control valve position collection. The specific steps for collecting the control valve position are as follows:

[0020] Step 1: Install the Z-shaped support block (first fixed support block 2) on the brake valve central axis 1, slide and adjust the height of the Z-shaped support block, and then fix it to the corresponding height of the brake valve central axis 1 by tightening the screws 3;

[0021] Step 2: Install the first proximity switch 5 and the second proximity switch 6 on the fixed support plate 4, and then install the fixed support plate 4 on the valve body. The horizontal position of the first proximity switch 5 and the second proximity switch 6 should be directly opposite to the Z-shaped support block. Signal sensing is achieved by adjusting the distance between the first proximity switch 5, the second proximity switch 6 and the Z-shaped support block.

[0022] Step 3: The operator operates the brake valve handle 10 to rotate the brake valve center axis 1, thereby driving the Z-shaped support block (first fixed support block 2) to rotate;

[0023] Step 4: When the Z-shaped support block (first fixed support block 2) rotates with the brake valve central axis 1, the Z-shaped support block and the two proximity switches (first proximity switch 5 and second proximity switch 6) respectively generate four combination position signals, including 00; 01, 11, and 10, which correspond to the braking position, the release position, the operating position, and the pressure holding position.

[0024] Step 5: Install the buffer support spring 7 and the second fixed support block 8 at the bottom of the brake valve center shaft 1, and pass the third proximity switch 9 through the second fixed support block 8 (hexagonal nut) and fix it at the center position of the second fixed support block 8 (hexagonal nut);

[0025] Part 6: When the brake valve handle 10 is pressed down, the brake valve center axis 1 is pressed down at the same time, thereby generating a proximity signal with the third proximity switch 9, realizing the collection of the downward pressing action of the brake valve center axis 1, and thus obtaining the position information of the brake valve handle 10.

[0026] The above is only a preferred embodiment of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the utility model. These improvements and modifications should also be regarded as within the scope of protection of the utility model.

Claims

1. A brake control valve position acquisition device, characterized in that: The collection device includes a brake valve central axis, a first fixed support block, a second fixed support block, a first position detector, a second position detector and a brake valve handle vertically connected to the outer wall of the brake end of the brake valve central axis; the first fixed support block is sleeved on the outer wall of the brake valve central axis close to the brake valve handle, and the first position detector is arranged below or above the edge of the first fixed support block, the second fixed support block is arranged in front of the moving collection end of the brake valve central axis, and the second position detector is arranged in the second fixed support block along the axial direction of the brake valve central axis, so that the second position detector senses the position information of the movement of the brake valve central axis in the axial direction.

2. The brake control valve position acquisition device according to claim 1, characterized in that: A fixed support plate for supporting the first position detector is provided below an edge of the first fixed support block.

3. The brake control valve position acquisition device according to claim 1, characterized in that: The first fixed support block is a Z-shaped support block, and a sliding mounting hole for being sleeved on the outer wall of the brake end of the brake valve center axis is provided on one side of the Z-shaped support block, and the first position detector is provided on the fixed support plate provided below the edge of the other side of the Z-shaped support block.

4. The brake control valve position acquisition device according to claim 3, characterized in that: A fastening screw is provided on the outer wall of the Z-shaped support block and extends vertically into the sliding mounting hole. The Z-shaped support block is fixed to the central axis of the brake valve by a fastening screw perpendicular to the central axis of the brake valve. The first position detector consists of a first proximity switch and a second proximity switch arranged on the fixed support plate.

5. The brake control valve position acquisition device according to claim 1, characterized in that: A linear movement detection hole is provided on the surface of the second fixed support block and is penetrated along the axial direction of the brake valve center axis. The second position detector is provided in the linear movement detection hole in the second fixed support block.

6. The brake control valve position acquisition device according to claim 5, characterized in that: A buffer support spring is provided on the surface of the second fixed support block and at the opening position of the linear movement detection hole, and is pressed against the moving collection end of the brake valve central axis.

7. A brake control valve position acquisition device according to claim 5 or 6, characterized in that: The second position detector is a third proximity switch arranged in the linear movement detection hole.

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