Railway wagon brake tail end stroke and axle temperature on-line detection device

Abstract

The utility model relates to a railway freight car brake tail end stroke and axle temperature on-line detection device, which belongs to the technical field of train detection, and particularly comprises a mounting support used for being mounted on a train wheel side frame, and an inner side temperature sensor, an outer side temperature sensor and a stroke sensor are mounted on the mounting support. The inner side temperature sensor is arranged outside a train wheel inner side bearing, clings to a bearing outer ring and is used for detecting the temperature of the train wheel inner side bearing, and the outer side temperature sensor is arranged outside a train wheel outer side bearing, clings to the bearing outer ring and is used for detecting the temperature of the train wheel outer side bearing. The stroke sensor is arranged on the outer side of the brake beam end shaft, the stroke sensor and the brake beam end shaft are located on the same straight line, the stroke sensor is tightly attached to the brake beam end shaft, and the train brake system running state monitoring device is simple in structure, reasonable in design and convenient to install and facilitates monitoring of the running state of a train brake system.

Description

Technical Field

[0001] This utility model relates to an online detection device for the end stroke of braking and axle temperature of railway freight cars, belonging to the field of train inspection technology. Background Technology

[0002] With the increase in the load capacity and train formation of freight cars on China's railways, the volume of freight car transport is also increasing year by year. The safe operation of freight cars is of paramount importance in railway transportation, making performance monitoring of freight car components essential. Currently, brake testing on freight cars involves installing pressure sensors on individual cars to detect changes in air pressure along several circuits to determine if the braking system is functioning properly. This method is inconvenient and prone to errors. Utility Model Content

[0003] To address the technical problems existing in the prior art, this utility model provides an online detection device for the end travel of the brakes and the axle temperature of railway freight cars, which is simple in structure, reasonable in design, easy to install, and convenient for monitoring the operating status of the train braking system.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is an online detection device for the braking end stroke and axle temperature of railway freight cars, including a mounting bracket for installation on the side frame of a train wheel. An inner temperature sensor, an outer temperature sensor, and a stroke sensor are installed on the mounting bracket. The inner temperature sensor is located outside the inner bearing of the train wheel, close to the outer ring of the bearing, and is used to detect the temperature of the inner bearing. The outer temperature sensor is located outside the outer bearing of the train wheel, close to the outer ring of the bearing, and is used to detect the temperature of the outer bearing. The stroke sensor is located outside the brake beam end axle and is aligned with the brake beam end axle, with the stroke sensor close to the brake beam end axle.

[0005] Preferably, the mounting bracket includes a fixing plate, a limiting plate, and a rectangular mounting cylinder. The rectangular mounting cylinder is mounted on one side of the fixing plate. A notch is provided in the middle of the rectangular mounting cylinder. The inner temperature sensor and the outer temperature sensor are respectively mounted on the rectangular mounting cylinder and located on both sides of the notch. A right-angle fixing plate is also mounted on the fixing plate. The right-angle fixing plate is perpendicular to the rectangular mounting cylinder. The stroke sensor is fixed on the right-angle fixing plate. The limiting plate is fixed on one side of the right-angle fixing plate. A limiting groove is formed between the limiting plate and the fixing plate.

[0006] Preferably, the mounting bracket is made entirely of stainless steel.

[0007] Preferably, the fixing plate is provided with fixing holes.

[0008] Compared with the prior art, the present invention has the following technical effects: The present invention has a simple structure and is easy to use. A stroke sensor and two temperature sensors are installed by mounting bracket. The extension rod contact of the stroke sensor contacts the end shaft of the brake beam to sense the change in the distance of the brake beam stroke in real time. The temperature sensors can detect the temperature change of the wheel bearing, and thus detect whether the entire braking system is working properly when the vehicle is braking and releasing. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0010] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0011] like Figure 1 As shown, the online detection device for the braking end stroke and axle temperature of railway freight cars includes a mounting bracket 1 for installation on the side frame of the train wheel. The mounting bracket 1 is equipped with an inner temperature sensor 2, an outer temperature sensor 3, and a stroke sensor 4. The inner temperature sensor 2 is located outside the inner bearing of the train wheel, close to the outer ring of the bearing, and is used to detect the temperature of the inner bearing of the train wheel. The outer temperature sensor 3 is located outside the outer bearing of the train wheel, close to the outer ring of the bearing, and is used to detect the temperature of the outer bearing of the train wheel. The stroke sensor 4 is located outside the brake beam end axle and is in a straight line with the brake beam end axle, with the stroke sensor close to the brake beam end axle.

[0012] This utility model employs a mounting bracket 1 installed on the side frame of a train wheel. An inner temperature sensor 2, an outer temperature sensor 3, and a stroke sensor 4 are installed on the mounting bracket 1. The inner temperature sensor 2, the outer temperature sensor 3, and the stroke sensor 4 can detect the bearing temperature and the stroke changes of the brake beam end shaft, thereby clearly understanding whether the entire braking system is working properly when the vehicle is braking and releasing.

[0013] The mounting bracket 1 includes a fixing plate 5, a limiting plate 6, and a rectangular mounting cylinder 7. The rectangular mounting cylinder 7 is mounted on one side of the fixing plate 5. A notch 8 is provided in the middle of the rectangular mounting cylinder 7. The inner temperature sensor 2 and the outer temperature sensor 3 are respectively mounted on the rectangular mounting cylinder 7 and located on both sides of the notch 8. A right-angle fixing plate 9 is also mounted on the fixing plate 5. The right-angle fixing plate 9 is perpendicular to the rectangular mounting cylinder 7. The stroke sensor 4 is fixed on the right-angle fixing plate 9. The limiting plate 6 is fixed on one side of the right-angle fixing plate 9. A limiting groove 10 is formed between the limiting plate 6 and the fixing plate 5.

[0014] Mounting bracket 1 is made entirely of stainless steel, making it rust-resistant. Mounting bracket 1 is based on fixing plate 5, which has fixing holes for mounting on the train wheel side frame. A limiting plate 6 is mounted on fixing plate 5, forming a limiting groove 10 between the limiting plate 6 and fixing plate 5, allowing it to be secured to the train wheel side frame. A rectangular mounting cylinder 7 is mounted on fixing plate 5, which can be used to mount the inner temperature sensor 2 and the outer temperature sensor 3. Its hollow internal structure facilitates wiring. The stroke sensor 4 is fixed to a right-angle fixing plate 9, and its signal line extends into the hollow structure of the rectangular mounting cylinder 7 to deliver the signal.

[0015] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model shall be included within the scope of the present utility model.

Claims

1. An online detection device for the end-of-braking stroke and axle temperature of railway freight cars, characterized in that: The mounting bracket for mounting on a train wheel side frame, the mounting bracket is provided with an inner temperature sensor, an outer temperature sensor and a stroke sensor, the inner temperature sensor is arranged outside the inner side bearing of the train wheel and close to the bearing outer ring, used for detecting the temperature of the inner side bearing of the train wheel, the outer temperature sensor is arranged outside the outer side bearing of the train wheel and close to the bearing outer ring, used for detecting the temperature of the outer side bearing of the train wheel, the stroke sensor is arranged outside the brake beam end shaft and in a straight line with the brake beam end shaft, and the stroke sensor is arranged close to the brake beam end shaft.

2. The railway wagon brake end stroke and axle temperature on-line detection device according to claim 1, characterized in that: The mounting bracket comprises a fixed plate, a limiting plate and a rectangular mounting cylinder, one side of the fixed plate is provided with the rectangular mounting cylinder, the middle part of the rectangular mounting cylinder is provided with a notch, the inner temperature sensor and the outer temperature sensor are respectively arranged on the rectangular mounting cylinder and located on both sides of the notch, a right-angle fixed plate is further arranged on the fixed plate, the right-angle fixed plate is arranged perpendicularly to the rectangular mounting cylinder, the stroke sensor is fixed on the right-angle fixed plate, and the limiting plate is fixed on one side of the right-angle fixed plate, and a limiting groove is formed between the limiting plate and the fixed plate.

3. The railway wagon brake end stroke and axle temperature on-line detection device according to claim 1, characterized in that: The mounting bracket is made of stainless steel material as a whole.

4. The railway wagon brake end stroke and axle temperature on-line detection device according to claim 2, characterized in that: The fixed plate is provided with a fixing hole.

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