Railway engineering vehicle hand brake and brake shoe state monitoring device

Abstract

A railway engineering vehicle hand brake and brake shoe state monitoring device comprises a first position sensor used for detecting the position of a hand brake; the position sensor II is used for detecting the state position of the brake shoe; the DI module is used for collecting detection signals of the position sensor I and the position sensor II; the alarm device is used for outputting alarm information; the control host is used for receiving and processing detection signals acquired by the DI module and then controlling the alarm device to work; the first position sensor and the second position sensor are fixed to the position, close to a brake rod of the hand brake, of a bogie through a sensor installation support. The hand brake and brake shoe state can be effectively monitored, and therefore the major risk endangering vehicle driving safety due to the fact that the hand brake is not relieved and the brake shoe surplus is insufficient is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway self-propelled wheel operation equipment operation safety, and specifically relates to a hand brake and brake shoe state monitoring device. Background Art

[0002] With the continuous increase in the operating mileage of my country's railways, railway maintenance work is becoming increasingly arduous. As the main equipment for railway maintenance operations, self-propelled special equipment has become a trend to improve the reliability of the equipment through technical defense means to ensure its safe use. The hand brake device is a parking device for self-propelled equipment when it is stored. Due to inadequate monitoring during actual use, there is a situation where the self-propelled equipment is running with the brake when the hand brake is not released. Secondly, the brake shoe is the medium for the self-propelled equipment to brake. During braking, the friction between the brake shoe and the wheel reduces the wheel speed. The remaining amount of the brake shoe will directly affect the braking effect of the vehicle. At present, there is no relevant device for monitoring the hand brake status and brake shoe status of railway engineering vehicles. Therefore, it is necessary to develop a hand brake and brake shoe status monitoring device. Summary of the invention

[0003] The purpose of the invention of the utility model is to solve the above-mentioned problems and shortcomings, and to provide a railway engineering vehicle hand brake and brake shoe status monitoring device, which can effectively monitor the hand brake and brake shoe status, thereby avoiding the serious risk of endangering the vehicle driving safety due to failure to release the hand brake and insufficient remaining brake shoe.

[0004] The technical solution of the utility model is: a railway engineering vehicle hand brake and brake shoe status monitoring device, comprising:

[0005] A position sensor 1 for detecting the hand brake position;

[0006] Position sensor 2 for detecting the state position of the brake shoe;

[0007] A DI module for collecting detection signals of position sensor 1 and position sensor 2;

[0008] An alarm device for outputting alarm information;

[0009] A control host used to receive the detection signal collected by the DI module and control the alarm device after processing;

[0010] The position sensor 1 and the position sensor 2 are fixed to the bogie near the brake rod of the hand brake through the sensor mounting bracket.

[0011] It also includes a display screen connected to the control host and used to display the unreleased position of the hand brake and the limit position of brake shoe wear.

[0012] The detection surfaces of the position sensor 1 and the position sensor 2 are perpendicular to the surface where the upper surface of the brake rod is located.

[0013] The sensor mounting bracket includes a mounting panel, which is parallel to the upper surface of the brake rod, and a fixing plate connected to the bogie is vertically connected to one side of the mounting panel. The mounting panel is provided with long holes for mounting position sensor 1 and position sensor 2.

[0014] The position sensor 1 is used to detect that the hand brake has not been released; the position sensor 2 is used to detect the brake shoe wear limit position.

[0015] The position sensor is connected to the digital input port of the control host via the DI module.

[0016] The utility model can effectively monitor the state of hand brake and brake shoe, thereby avoiding the serious risk of brake failure caused by vehicle running when the hand brake is not released and insufficient brake shoe remaining amount.

[0017] From the perspective of practical application, the utility model focuses on solving the driving hazard problem caused by the failure of hand brake to relieve the vehicle. At the same time, it gives a prompt warning for the brake shoe consumption limit, reminding on-site workers to replace the brake shoe in time, and uses technical prevention measures to further improve the safe use of on-site vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the embodiments provided in the accompanying drawings.

[0019] Figure 1 This is the main view of the implementation of the utility model;

[0020] Figure 2 This is a top view of the installation of the utility model;

[0021] Figure 3 It is a partial diagram of the bogie of the utility model;

[0022] Figure 4 This is the electrical control principle block diagram of the utility model;

[0023] Figure 5 This is a front view of the sensor mounting bracket of the utility model;

[0024] Figure 6 It is a top view of the sensor mounting bracket of the utility model;

[0025] In the figure: 1. DI module, 2. display screen, 3. control host, 4. alarm device, 5. sensor mounting bracket, 6. position sensor 1, 7. position sensor 2, 8. brake shoe, 9. wheel, 10. hand brake, 11. brake lever, 12. wire rope, 13. pulley, 14. bogie, 15. vehicle body. DETAILED DESCRIPTION

[0026] Figure 1 , Figure 2 In the utility model, a sensor mounting bracket 5 is respectively installed near the brake rod 11 on both sides of the bogie 14, and each sensor mounting bracket 5 is installed with a position sensor 1 6 for monitoring the unreleased position of the hand brake and a position sensor 2 7 for monitoring the wear limit position of the brake shoe;

[0027] The utility model also includes a DI module 1, a display screen 2, a control host 3, and an alarm device 4. A sensor mounting bracket 5 is mounted on both sides of the bogie 14 near the brake rod 11, and is used to fix a position sensor 1 6 and a position sensor 2 7. The position sensor 1 6 and the position sensor 2 7 are both proximity switches, and the position sensor 1 6 and the position sensor 2 7 are bolted and assembled side by side on the mounting panel 51 of the sensor mounting bracket 5; the position sensor 1 6 is used to detect whether the hand brake 10 is released; the position sensor 2 7 is used to detect whether the remaining amount of brake shoe wear has reached a critical point.

[0028] Figure 1 , Figure 2 In the figure, the fixed panel 52 of the sensor mounting bracket 5 is welded and mounted on the bogie 14, close to the upper surface of the brake rod 11, and the position sensor 16 and the position sensor 27 are mounted on the mounting panel 51 of the sensor mounting bracket 5. The mounting panel 51 is parallel to the upper surface of the brake rod 11, ensuring that when the brake rod 11 is in action, the detection surfaces of the position sensor 16 and the position sensor 27 are directly facing the plane where the upper surface of the brake rod 11 is located. When the hand brake 10 is applied, the hand brake 10 fixed on the vehicle body 15 transmits the torque to the brake rod 11 through the wire rope 12 and the pulley 13. The brake rod 11 uses the lever principle to tightly fit the brake shoe 8 and the wheel 9 to achieve braking. When the hand brake 10 is not released, the position sensor 16 can detect the position signal of the brake rod 11. Figure 2In the figure, the brake shoe 8 is in the release state. The DI module 1 sends the position signal of the position sensor 6 collected to the control host 3. The control host 3 sends the position signal of the position sensor 6 to the display screen 2 for display after processing. At the same time, the control host 3 sends the alarm signal to the alarm device 4 to start the alarm. As the brake shoe 8 is consumed, the thickness of the brake shoe 8 will gradually decrease. After the thickness of the brake shoe 8 decreases, the displacement of the brake rod 11 will increase. When the brake shoe 8 is consumed to the limit position, when the leftward displacement of the brake rod 11 reaches the maximum, the position sensor 27 will detect the limit displacement position of the brake rod 11. When the brake shoe 8 is worn to the limit position, the DI module sends the position signal of the position sensor 27 to the control host 3. The control host 3 sends the position signal of the position sensor 27 to the control host 3 after logical operation. At the same time, the control host 3 sends the alarm signal to the alarm device 4 to start the alarm. The control host 3 can be a PLC controller. It is a prior art that the PLC controller receives the position sensor 6 and the position sensor 27 collected by the DI module 1 and controls the display screen 2 and the alarm device 4 after processing. This embodiment will not be repeated in detail.

[0029] Figure 3 In the figure, the brake rod 11 is connected to the hinge shaft 16 fixed on the bogie 14, and the hinge shaft 16 is connected to the vertical lever 18 that fixes the brake shoe drag 17. When the brake rod 11 is actuated, the vertical lever 18 is driven to actuate through the hinge shaft 16. Since the brake shoe drag 17 is rigidly connected to the vertical lever 18, when the vertical lever 18 is actuated, the brake shoe 8 is synchronously actuated and closely combined with the wheel tread to realize vehicle braking. This part of the structure is the structure of the existing hand brake machine, which is the prior art and will not be described in detail in this embodiment.

[0030] Figure 4 In the embodiment, the control host 3 is used to process the received position sensor signals and send instructions to other output devices. The DI module 1 is used to collect the position signals of the position sensor 1 6 and the position sensor 2 7; the control host 3 is used to receive the signals collected by the DI module (i.e., the digital input module) 1, and transmit them to the display screen 2 after processing; the display screen 2 displays the position signals sent by the control host 3 on the screen; the alarm device 4 receives the signals sent by the control host 3 and starts to alarm.

[0031] Figure 5 , Figure 6 In order to accurately measure the position signal of the brake rod 11 and the wear limit signal of the brake shoe 8, the sensor mounting bracket 5 is designed as an L-shaped structure, wherein the mounting panel 51 is used to mount the position sensor 1 6 and the position sensor 2 7, and the fixing plate 52 is used to be welded on the bogie 14. At the same time, in order to facilitate the position adjustment of the position sensor 1 6 and the position sensor 2 7, the assembly hole on the mounting panel 51 is opened as a long hole. The length of the mounting panel 51 is not more than 150 mm, the width is not more than 80 mm, and a long hole of not more than 110 mm is opened in the middle.

Claims

1. A railway engineering vehicle hand brake and brake shoe status monitoring device, characterized in that: include: A position sensor (6) for detecting the hand brake position; Position sensor 2 (7) for detecting the state position of the brake shoe; A DI module (1) for collecting detection signals of position sensor 1 (6) and position sensor 2 (7); An alarm device (4) for outputting alarm information; A control host (3) for receiving and processing the detection signal collected by the DI module (1) and controlling the operation of the alarm device (4); The position sensor 1 (6) and the position sensor 2 (7) are fixed to the bogie (14) near the hand brake lever (11) via a sensor mounting bracket (5).

2. The railway engineering vehicle hand brake and brake shoe status monitoring device according to claim 1 is characterized in that: It also includes a display screen (2) connected to the control host (3) and used to display the unreleased position of the hand brake (10) and the wear limit position of the brake shoe (8).

3. The railway engineering vehicle hand brake and brake shoe status monitoring device according to claim 1, characterized in that: The detection surfaces of the position sensor 1 (6) and the position sensor 2 (7) are perpendicular to the surface of the upper surface of the brake rod (11).

4. The railway engineering vehicle hand brake and brake shoe status monitoring device according to claim 1, characterized in that: The sensor mounting bracket (5) comprises a mounting panel (51), the mounting panel (51) being parallel to the upper surface of the brake rod (11), a fixing plate (52) connected to the bogie being vertically connected to one side of the mounting panel (51), and a long hole for mounting position sensor 1 (6) and position sensor 2 (7) being provided on the mounting panel (51).

5. The railway engineering vehicle hand brake and brake shoe status monitoring device according to claim 1, 3 or 4, characterized in that: The position sensor 1 (6) is used to detect whether the hand brake (10) has not been released; the position sensor 2 (7) is used to detect the wear limit position of the brake shoe (8).

6. The railway engineering vehicle hand brake and brake shoe status monitoring device according to claim 1, characterized in that: The position sensor 1 (6) is connected to the digital input port of the control host (3) via the DI module (1).

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