CN-224225074-U - Railway track inspection instrument with sensing plate measurement function

Abstract

The utility model relates to a railway track inspection instrument with a sensing plate measuring function, which comprises a frame, wherein a travelling wheel used for sliding on two steel rails is arranged at the end part of the frame, a sensing plate is arranged between the two steel rails, a first laser sensor and a second laser sensor are arranged on the lower end surface of the frame, the first laser sensor and the second laser sensor are positioned right above the sensing plate and are used for measuring the vertical distance from the sensing plate and feeding back measurement information to a controller on the frame, and the distance between the first laser sensor and the second sensor is adjustable. The whole design is based on the original rail inspection instrument state, has the advantages of low design and use cost, simple structure, independence, no influence on the existing measurement function and precision of the rail inspection instrument, easy implementation, low manufacturing cost, high measurement precision and the like.

Inventors

• HE SHENG

Assignees

• 成都鑫达恒泰轨道交通设备有限公司

Dates

Publication Date

20260512

Application Date

20250522

Claims (4)

1. 1. The railway track inspection tester with the sensing plate measuring function is characterized by comprising a frame, wherein a travelling wheel used for sliding on two steel rails is arranged at the end part of the frame, a sensing plate is arranged between the two steel rails, a first laser sensor and a second laser sensor are mounted on the lower end surface of the frame, the first laser sensor and the second laser sensor are located right above the sensing plate and used for measuring the vertical distance from the sensing plate and feeding back measurement information to a controller on the frame, and the distance between the first laser sensor and the second sensor is adjustable.
2. 2. The railroad track inspection machine with sensing plate measurement function of claim 1, wherein the first laser sensor and the second laser sensor are electrically connected with the controller through an RS interface.
3. 3. The railroad track inspection machine with sensing plate measurement function of claim 1, wherein the carriage comprises a longitudinal beam and a transverse beam, the longitudinal beam and the transverse beam are connected to form a T-shaped structure, and the first laser sensor and the second laser sensor are both installed below the transverse beam.
4. 4. A railway track inspection machine with sensing plate measurement function of claim 3, wherein a guide rail is arranged below the cross beam, and the first laser sensor and the second laser sensor are detachably mounted on the guide rail.

Description

Railway track inspection instrument with sensing plate measurement function Technical Field The utility model relates to the technical field of rail detectors, in particular to a railway rail detector with a sensing plate measuring function. Background With the rapid development of national economy, urban population is rapidly increased, and traffic pressure is increased. In order to relieve traffic pressure, subway construction is accelerated in large cities throughout the country. Currently, 55 cities in the whole country are provided with subways, and the total operation mileage reaches 1 ten thousand kilometers. Ensuring the safety of rail transportation is a constant theme, and the transportation equipment needs to be detected at any time by adopting an advanced detection tool, so that equipment defects can be found and treated in time. The geometrical parameter detection of urban rail transit line track is the most commonly used track inspection instrument in new line acceptance inspection, line overhaul and daily maintenance except for large professional detection vehicles at present, and adopts an optical fiber gyroscope, an inclination angle sensor, a linear displacement sensor, a rotary encoder and the like to finish the measurement of the geometrical parameters of the track, such as track gauge, superelevation (horizontal), height, direction, torsion (triangular pit) and the like. When in use, the rail inspection instrument is placed on a rail, and the measurement of geometric parameters of the rail is completed by manual pushing (about 5 km/h). At the detection of the induction plate adopting the linear motor traction circuit, the manual measurement is still carried out by using a self-made mechanical simple measuring ruler. The patent number ZL202010065027.4 and the patent number ZL200910106145.9 are related to a detection device (a special detection device for a sensing plate) of a rail transit motor sensing plate and a detection method (a special detection device for a sensing plate) of a sensing plate. The patent 'comprehensive tester for static geometrical parameters of contact rail, induction plate and track and testing method' (patent number: 202510028947.1), the induction plate is measured by scanning and measuring the induction plate by a laser scanner, although the parameters of the induction plate can be measured, the laser scanner is expensive, the measuring arm is high, and the measuring arm shakes greatly in the pushing and detecting process, thus affecting the measuring precision. Therefore, at present, the static detection of the geometric parameters of the subway rail is mainly manual rail gauge detection and automatic detection of a rail inspection instrument, and the detection of the contact rail and the induction plate is mainly measured by a special mechanical detection ruler. The manual measurement is performed on the line once at intervals, the operation of continuously bending down is performed, the labor intensity is high, and the efficiency is low. The light is not good at night, and the measuring staff is tired, so that the data can be easily read by mistake, and human errors are caused. Meanwhile, the precision of the mechanical measuring instrument is not high. Disclosure of utility model Based on this, it is necessary to provide a railway track inspection machine with a sensing plate measuring function in order to solve the above-mentioned problems. The utility model provides a railway track inspection appearance with sensing plate measurement function, includes the frame, the tip of frame is provided with the walking wheel that is used for sliding on two rails, two be provided with the sensing plate between the rail, first laser sensor and second laser sensor are installed to the terminal surface under the frame, first laser sensor and second laser sensor are located the sensing plate directly over for measure the perpendicular distance apart from the sensing plate, and with the controller on the frame of measurement information feedback, the interval between first laser sensor and the second sensor is adjustable. Preferably, the first laser sensor and the second laser sensor are electrically connected with the controller through an RS interface. Preferably, the frame comprises a longitudinal beam and a cross beam, the longitudinal beam and the cross beam are connected to form a T-shaped structure, and the first laser sensor and the second laser sensor are both installed below the cross beam. Preferably, a guide rail is arranged below the cross beam, and the first laser sensor and the second laser sensor are detachably mounted on the guide rail. The utility model has the advantages of low design and use cost based on the original rail inspection instrument state, simple and independent structure, no influence on the existing measurement function and precision of the rail inspection instrument, easy implementation, low manufacturing cost, high measurement precision