CN212195472U - Railway track geometric state detection device - Google Patents

Abstract

The utility model discloses a railway track geometric state detection device, which belongs to the technical field of track smoothness detection. One end of the vertical rod is vertically connected to the T-shape of the horizontal rod, the other end of the vertical rod is provided with a roller III, and the bottom of the vertical rod is provided with an infrared sensor; a laser sensor is provided above the middle end of the horizontal rod, and the vertical rod is fixed on the vertical rod. There is an inertial navigation system, and the roller III is provided with a Hall sensor; the laser sensor, the infrared sensor, and the inertial navigation system are connected to a control system, and the control system is powered by a solar panel arranged above the control system. The utility model has the characteristics of rapidly measuring the geometric state of the track.

Description

Railway track geometric state detection device

technical field

The utility model relates to the technical field of track smoothness detection, in particular to a railway track geometric state detection device.

Background technique

With the increase of train running speed, the requirements for the geometric state of the railway track are also increasing. In order to ensure the safety of freight trains and the comfort of passenger trains, the geometric irregularity of the long track, which was not obvious between the wheel and rail of the train in the past, gradually appeared with the increase of the speed of the train. Track irregularity is an external disturbance to the train vehicle system, and it is the main source of vibration and even derailment of the running part of the vehicle. Moreover, the poor smoothness of the track will also cause the train wheel-rail contact surface to be subjected to a strong impact force, which will accelerate the wear and tear of the wheel and rail, and pose a potential threat to the driving safety.

The existing railway track smoothness detection device is based on the CPIII control point during measurement, and is converted into indirect measurement of linear deviation through the angle and distance measurement of the total station. The CPIII control points were designed on both sides of the railway at the beginning of the construction of the railway, with an interval of about 60 meters. A mandatory alignment mark is set on the CPIII control point, which is a known coordinate point. During inspection, a prism is placed on the CPIII control point, and then a total station is set up on the track. The coordinates of the total station are determined by observing the coordinates of the known CPIII control point, and then the prism on the rail inspection car is observed one by one sleeper, and the centerline coordinates are measured. , and then calculate the track smoothness parameter.

Since the accuracy of the CPIII control point will affect the detection accuracy, the railway operation and maintenance party must regularly spend a lot of money on the accuracy of the CPIII control point. The work team, a "skylight point" (4h), can only measure 300m lines at most. In addition, due to the extreme sensitivity of the total station to environmental conditions, the orbital geometric state measuring instrument (hereinafter referred to as the orbital measuring instrument) is extremely susceptible to the influence of the external environment, such as temperature, humidity, light, visibility and wind speed, etc. Although the accuracy of the coordinate value can meet the line position measurement requirements (±10mm), it can not meet the track medium and short wave smoothness requirements (≤2mm). Moreover, the height measurement accuracy of the total station is very low, and the measurement results are unstable. Therefore, it is difficult for the current track measurement methods to meet the measurement requirements for the medium and short wave comfort of the track during operation.

Utility model content

Aiming at the above-mentioned existing problems, the utility model proposes a railway track geometric state detection device, which can solve the above-mentioned problems.

The technical solution adopted by the present utility model to solve the technical problem is to provide a railway track geometric state detection device, which includes a frame, and the frame includes a cross bar. The two ends of the cross bar are provided with rollers I and II. One end of the vertical bar is vertically connected to the horizontal bar in a T-shape, the other end of the vertical bar is provided with a roller III, and the bottom of the vertical bar is provided with an infrared sensor; a laser sensor is arranged above the middle end of the horizontal bar, and the vertical bar is fixed on the There is an inertial navigation system, and the roller III is provided with a hall sensor; the laser sensor, the infrared sensor, and the inertial navigation system are connected to a control system, and the control system is powered by a solar panel arranged above the control system.

As a preferred solution, a push rod is provided on the vertical rod, and the push rod is connected to the vertical rod through a telescopic rod.

As a preferred solution, a satellite antenna is provided on the tail of the vertical rod connected with the roller III, the satellite antenna is connected to a satellite receiver, and the satellite receiver is electrically connected to the control system.

As a preferred solution, two sides of the vertical rod are laterally connected with a left wing and a right wing, the left wing is provided with a support frame, and the support frame is provided with a screen plate; the right wing is provided with a screen plate; A connecting rod is arranged on the connecting rod, and a temperature sensor and an inclination sensor are arranged on the connecting rod.

Beneficial effects of the utility model:

The utility model enhances the anti-interference performance of the rail inspection equipment, enables it to operate all-weather, is not affected by the environment, and improves the detection precision and the detection efficiency. The absolute coordinates of the orbit are measured by satellite positioning, which can be directly measured without relying on the CPIII control point, which improves the accuracy of the orbit inspection operation, and solves the problem that the accuracy of the CPIII control point changes with time, which leads to the decrease of the orbit inspection accuracy. The high-precision inertial navigation system records the T-shape The car body obtains a three-dimensional state during the movement process. The infrared sensors are used to record the passing sleepers, the distance between the sleepers is recorded by cooperating with the Hall sensor, and the track distance data measured by the T-shaped car body in motion and static state are recorded in real time. The sensor quickly locates the closest point on the rail corresponding to the catenary pillar or CPIII pile, that is, the marked point. There is no need for too many personnel to participate, which not only reduces the labor cost, but also reduces the measurement operation cost of the track inspection instrument; combined with the high-precision inertial navigation system device to record the three-dimensional data of the track inspection vehicle, and then calculate the stationary point coordinates calculated by the high-precision satellite positioning equipment one by one. The sleeper coordinates do not need to be measured for each sleeper, which greatly improves the efficiency of rail inspection operations.

Description of drawings

Fig. 1 is the structural representation of Embodiment 1 of the present utility model;

Among them, 1. frame; 2. horizontal bar; 3. vertical bar; 4. roller I; 5. roller II; 6. roller III; 7. laser sensor; 8. inertial navigation system; 9. control system; 10. Push rod; 11, telescopic rod; 12, satellite antenna; 13, satellite receiver; 14, right wing; 15, connecting rod; 16, temperature sensor; 17, left wing; 18, support frame; screen panel.

Detailed ways

Example 1:

Referring to the accompanying drawings in the description, a railway track geometric state detection device according to the present invention includes a frame 1, and the frame 1 includes a cross bar 2. The two ends of the cross bar 2 are provided with rollers I4 and II5, so One end of the vertical bar 3 is vertically connected with the horizontal bar 2 in a T shape, the other end of the vertical bar 3 is provided with a roller III6, and the bottom of the vertical bar 3 is provided with an infrared sensor; the middle end of the horizontal bar 2 is provided with a laser sensor 7, An inertial navigation system 8 is fixed on the vertical rod 3, and a Hall sensor is provided in the roller III6; the laser sensor 7, the infrared sensor, and the inertial navigation system 8 are connected to the control system 9, and the control system 9 Power is supplied by solar panels above the control system 9 .

As a preferred solution, the vertical rod 3 is provided with a push rod 10 , and the push rod 10 is connected to the vertical rod 3 through a telescopic rod 11 .

As a preferred solution, a satellite antenna 12 is provided on the tail of the vertical rod 3 connected with the roller III6 , the satellite antenna 12 is connected to a satellite receiver 13 , and the satellite receiver is electrically connected to the control system 9 .

As a preferred solution, a left wing 17 and a right wing 14 are laterally connected on both sides of the vertical rod 3 , a support frame 18 is arranged on the left wing 17 , and a screen plate is arranged on the support frame 18 19; the right wing 14 is provided with a connecting rod 15, and the connecting rod 15 is provided with a temperature sensor 16 and an inclination sensor.

The utility model enhances the anti-interference performance of the rail inspection equipment, enables it to operate all-weather, is not affected by the environment, and improves the detection precision and the detection efficiency. The absolute coordinates of the orbit are measured by satellite positioning, which can be directly measured without relying on the CPIII control point, which improves the accuracy of the orbit inspection operation, and solves the problem that the accuracy of the CPIII control point changes with time, which leads to the decrease of the orbit inspection accuracy. The high-precision inertial navigation system records the T-shape The car body obtains a three-dimensional state during the movement process. The infrared sensors are used to record the passing sleepers, the distance between the sleepers is recorded by cooperating with the Hall sensor, and the track distance data measured by the T-shaped car body in motion and static state are recorded in real time. The sensor quickly locates the closest point on the rail corresponding to the catenary pillar or CPIII pile, that is, the marked point. There is no need for too many personnel to participate, which not only reduces the labor cost, but also reduces the measurement operation cost of the track inspection instrument; combined with the high-precision inertial navigation system device to record the three-dimensional data of the track inspection vehicle, and then calculate the stationary point coordinates calculated by the high-precision satellite positioning equipment one by one. The sleeper coordinates do not need to be measured for each sleeper, which greatly improves the efficiency of rail inspection operations.

When the equipment is working, after calibrating the inclination parameters of the frame 1 itself, it starts to push the frame 1 to move forward in the direction of the track inspection operation. , the three-dimensional state of rolling, at the same time, with the satellite positioning data recorded by the satellite receiver 13, when the laser line from the laser sensor 7 passes through the CPIII pile point or fixed point, the detection device stops at the marked point. The installation height of the laser sensor 7 is higher than the upper surface of the rail.

The infrared sensor and the Hall sensor cooperate to record the real-time track distance data and the identified sleeper data under the moving state, which can be used as the original data for calculating the track direction, height and superelevation parameters of the track and the sleeper position. The data collection does not depend on the CPIII control point. , to improve the accuracy of the rail inspection operation, and solve the problem that the accuracy of the CPIII control point changes with time, which reduces the accuracy of the rail inspection.

The above temperature sensors, satellite receivers, inclination sensors, track gauge sensors, inertial navigation systems, sleeper identifiers and odometers are all available in the market.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions that belong to the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (4)

1. a railway track geometric state detection device, is characterized in that, comprises frame (1), described frame (1) comprises crossbar (2) described crossbar (2) both ends are provided with rollers 1 (4) ) and roller II (5), one end of the vertical bar (3) is vertically connected to the horizontal bar (2) in a T-shape, the other end of the vertical bar (3) is provided with roller III (6), and the bottom of the vertical bar (3) is provided with an infrared sensor A laser sensor (7) is arranged above the middle end of the horizontal bar (2), an inertial navigation system (8) is fixed on the vertical bar (3), and a Hall sensor is arranged in the roller III (6); the The laser sensor (7), the infrared sensor, and the inertial navigation system (8) are connected to the control system (9), and the control system (9) is powered by a solar panel arranged above the control system (9). 2 . The device for detecting the geometric state of a railway track according to claim 1 , wherein a push rod ( 10 ) is provided on the vertical rod ( 3 ), and the push rod ( 10 ) passes through the telescopic rod ( 11 ). 3 . ) is connected to the vertical rod (3). 3. A kind of railway track geometric state detection device according to claim 1, characterized in that, a satellite antenna (12) is provided on the tail of the vertical rod (3) connected with the roller III (6). The antenna (12) is connected to a satellite receiver (13) which is electrically connected to the control system (9). 4 . The device for detecting the geometric state of a railway track according to claim 1 , wherein a left wing ( 17 ) and a right wing ( 14 ) are laterally connected on both sides of the vertical rod ( 3 ), and the A support frame (18) is arranged on the left fin (17), and a screen plate (19) is arranged on the support frame (18); a connecting rod (15) is arranged on the right fin (14), and the The connecting rod (15) is provided with a temperature sensor (16) and an inclination sensor.

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