CN211471998U - Dynamic track geometric state measuring system - Google Patents
Dynamic track geometric state measuring system Download PDFInfo
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- CN211471998U CN211471998U CN201921742510.0U CN201921742510U CN211471998U CN 211471998 U CN211471998 U CN 211471998U CN 201921742510 U CN201921742510 U CN 201921742510U CN 211471998 U CN211471998 U CN 211471998U
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Abstract
The embodiment of the application relates to the technical field of track detection, in particular to a dynamic track geometric state measuring system. The dynamic orbit geometric state measuring system comprises: the traveling mechanism is used for moving along the track to be measured; a measuring reference for establishing a coordinate system; the measuring mechanism is used for detecting coordinate values and angle values of the track to be measured in the coordinate system, and the track gauge and track mileage of the track to be measured; and the control device is used for acquiring the measurement data of the measurement mechanism and calculating the coordinates, the attitude information, the track gauge and the track mileage of the track to be measured according to the acquired measurement data. The dynamic track geometric state measuring system has the characteristics of high detection speed and high detection efficiency.
Description
Technical Field
The application relates to the technical field of track detection, in particular to a dynamic track geometric state measuring system.
Background
In the working stage of laying track fine adjustment of a newly-built railway, the conventional track fine adjustment measuring mode needs to use a track static geometric state measuring device (hereinafter referred to as a static track inspection trolley) to be matched with a total station to measure the positions of sleepers of the track one by one. The traditional static measurement method comprises the steps of pushing a static rail inspection trolley to a sleeper position to enable the static rail inspection trolley to be in a static state, collecting the track gauge and the ultrahigh inclination angle of a track, controlling a total station to measure the coordinates of a target prism on the static rail inspection trolley, calculating internal geometric state parameters and external parameters of the sleeper position of the track by fine tuning software, completing one measurement of one sleeper of the static rail inspection trolley, then pushing the static rail inspection trolley to the next adjacent sleeper position, and performing cyclic operation. The whole measurement process of the static rail inspection trolley is carried out in a stop-and-go mode, the time of at least 10 seconds is needed for one data acquisition of each sleeper, and 25 seconds are needed for measuring one sleeper by pushing the static rail inspection trolley to travel between adjacent sleepers. A work team can complete a 1-wire kilometer track measurement approximately 12 hours a night. The fine adjustment of the newly-built railway track needs to be measured for three times, the calculation is carried out by using the railway line with the main line of 100 kilometers, the fine adjustment measuring time of the track needs 600 construction days, and the fine adjustment measuring workload of the track is huge.
The conventional static rail inspection trolley has the defects of low detection speed and low detection efficiency, and cannot meet the operation requirement of quick maintenance in the skylight period of the operating high-speed rail.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a dynamic track geometric state measuring system with high detection speed and high detection efficiency, and solves the problem that the conventional static rail inspection trolley cannot meet the operation requirement of quick maintenance in the skylight period of a high-speed rail due to low detection speed and low detection efficiency.
According to a first aspect of embodiments of the present application, there is provided a dynamic track geometry measuring system, comprising:
the traveling mechanism is used for moving along the track to be measured;
a measuring reference for establishing a coordinate system;
the measuring mechanism is used for detecting coordinate values and angle values of the track to be measured in the coordinate system, and the track gauge and track mileage of the track to be measured;
and the control device is used for acquiring the measurement data of the measurement mechanism and calculating the coordinates, the attitude information, the track gauge and the track mileage of the track to be measured according to the acquired measurement data.
Preferably, the running mechanism comprises a vehicle body and wheels mounted at the bottom of the vehicle body.
Preferably, the measuring reference comprises a plurality of pairs of CP III control points symmetrically arranged on two sides of the track to be measured and a target prism fixedly arranged on the top of the vehicle body.
Preferably, a CP iii prism is arranged at each CP iii control point, and a reflection surface of the CP iii prism faces the total station.
Preferably, each CP iii control point is provided with an embedded sleeve, and the CP iii prism is inserted into the embedded sleeve.
Preferably, a support rod is fixedly connected to the top of the vehicle body, and a clamp is fixedly mounted on the top of the support rod;
the target prism is fixedly arranged on the fixture.
Preferably, the measuring mechanism comprises a total station, an inertial navigator, a rotary encoder and a distance sensor;
the track to be measured is divided into a plurality of measuring units along the extending direction of the track to be measured;
the total station is used for measuring the coordinate information of the starting point and the end point of the measuring unit;
the inertial navigator is fixedly arranged at the top of the vehicle body and used for measuring the angular velocity information and the linear acceleration information of the travelling mechanism;
the rotary encoder is used for detecting the number of turns of the wheel;
the distance sensor is used for detecting the track gauge information of the track to be measured.
Preferably, an adapter plate is fixedly installed at the top of the vehicle body, and the inertial navigator is fixedly installed on the adapter plate.
Preferably, the inertial navigator is a laser inertial navigator.
Preferably, the walking mechanism further comprises a fixed wheel and a movable wheel which are oppositely arranged along the width direction of the track to be measured; the axial leads of the fixed wheels and the movable wheels are arranged along the vertical direction;
the fixed wheels can be fixedly arranged at the bottom of the vehicle body in a rotating mode around the axial lead of the fixed wheels, the fixed wheels are arranged along the extending direction of the track to be measured, and the wheel rim of each fixed wheel is abutted against the inner surface of one side of the track to be measured;
the movable wheel can rotate around the axis line of the movable wheel and is elastically installed at the bottom of the vehicle body with the distance between the movable wheel and the fixed wheel adjustable, and the rim of the movable wheel is abutted with the inner surface of the other side of the track to be measured;
the distance sensor is mounted on the fixed wheel.
Preferably, the control device comprises a data acquisition module and a calculation module which are in signal connection;
the data acquisition module is in signal connection with the measuring mechanism and is used for acquiring the measuring data of the measuring mechanism;
and according to the measurement data acquired by the data acquisition module, the calculation module calculates the coordinates, the attitude information, the track gauge and the track mileage of the track to be measured.
Preferably, the control device is a microcomputer.
Preferably, fixedly connected with push rod base on the automobile body, it has the push rod to articulate on the push rod base, welded connection has the push rod handle on the push rod.
Preferably, the running mechanism further comprises an illuminating lamp fixedly mounted on the vehicle body and handles fixedly mounted at two ends of the vehicle body.
Preferably, the running mechanism further comprises a driving assembly mounted on the vehicle body, and the driving assembly is in transmission connection with the wheels and is used for driving the wheels to rotate.
Preferably, the drive assembly is an electric motor or an internal combustion engine.
The dynamic track geometric state measuring system provided by the embodiment of the application has the following beneficial effects:
the dynamic track geometric state measuring system comprises a traveling mechanism capable of moving along a track to be measured, the dynamic track geometric state measuring system can detect relative parameters of the track to be measured in a coordinate system established by a measuring reference through the measuring mechanism in the state that the traveling mechanism moves along the track to be measured, and then actual parameters of the track to be measured, such as track mileage, track direction, track surface height, track gauge, triangular pits, track included angles and the like, can be calculated through the control device.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic diagram of a dynamic track geometry status measurement system according to an embodiment of the present disclosure;
FIG. 2 is a front view of a traveling mechanism according to an embodiment of the present disclosure;
FIG. 3 is a top view of the travel mechanism provided in FIG. 2;
fig. 4 is a left side view of the travel mechanism provided in fig. 2.
Reference numerals:
100-dynamic orbit geometry measurement system; 110-a running gear; 120-measurement reference; 130-a measuring mechanism; 140-a control device;
1-a transverse base; 2-a longitudinal base; 3-vehicle wheels; 4-inertial navigator; 5-a rotary encoder; 6-a push rod; 7-a roller; 8-a fixed wheel; 9-a movable wheel; 10-an adapter plate; 11-a push rod base; 12-a push-rod handle; 13-a support bar; 14-a fixture; 15-a handle; 16-a power supply; 17-lighting lamp.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 1, an embodiment of the present application provides a dynamic track geometry measuring system 100, which includes:
a traveling mechanism 110 for moving along a rail to be measured; as shown in fig. 2 and 4, the traveling mechanism 110 may include a vehicle body and wheels 3 mounted on the bottom of the vehicle body; in the process of measuring the track to be measured, the wheels 3 are supported on the rail surface of the track to be measured and can roll along the rail surface of the track to be measured, so that the travelling mechanism 110 can move along the position of the track to be measured;
a measurement reference 120 for establishing a coordinate system; the measuring datum 120 comprises a plurality of pairs of CP III control points symmetrically arranged on two sides of the track to be measured and a target prism fixedly arranged on the top of the vehicle body; through a plurality of pairs of CP III control points symmetrically arranged on two sides of the track to be measured, a coordinate system in the process of measuring the track to be measured can be established through the known coordinate positions of the CP III control points, so that the measuring datum 120 is determined, and the absolute coordinate of the track to be measured can be obtained only by measuring the relative coordinate and angle between the track to be measured and the established coordinate system through the measuring mechanism 130; the geometric relationship between the running gear 110 and the track to be measured can be obtained by measuring the target prism, and then the measurement of various parameters of the track to be measured can be calculated through the geometric relationship and the relative coordinates, such as: track mileage, track direction, track surface height, track gauge, triangular pits, track included angle and other parameters;
the measuring mechanism 130 is used for detecting coordinate values and angle values of the track to be measured in the coordinate system, and the track gauge and track mileage of the track to be measured; the measuring mechanism 130 may include a total station, an inertial navigator 4, a rotary encoder 5, and a distance sensor; the total station can be fixedly installed on the traveling mechanism 110, or can be separated from the traveling mechanism 110; the total station is used for acquiring coordinate information of a starting point and an end point of the measuring unit; in the measurement process, the track to be measured is divided into a plurality of measurement units along the extension direction of the track, and in the process of dividing the track to be measured into the measurement units, the measurement units are divided according to a preset distance, wherein the preset distance can be 40-80 m, for example: 40m, 50m, 60m, 70m, 80 m; the inertial navigator 4 is fixedly installed at the top of the vehicle body and is used for measuring angular velocity information and linear acceleration information of the traveling mechanism 110; the rotary encoder 5 is used for detecting the number of turns of the wheel 3; the distance sensor is used for detecting the track gauge information of the track to be measured;
and a control device 140 for acquiring the measurement data of the measurement mechanism 130 and calculating the coordinates, attitude information, track gauge and track mileage of the track to be measured according to the acquired measurement data. The control device 140 may include a data acquisition module and a calculation module in signal connection; the data acquisition module is in signal connection with the measuring mechanism 130 and is used for acquiring the measuring data of the measuring mechanism 130; according to the measurement data acquired by the data acquisition module, the calculation module calculates the coordinates, the attitude information, the track gauge and the track mileage of the track to be measured; the control device 140 may be a microcomputer. In the process of calculating by using the calculating module, the calculating method in the prior art can be used.
The system 100 for measuring the geometric state of the dynamic track comprises a traveling mechanism 110 capable of moving along the track to be measured, so that the system 100 for measuring the geometric state of the dynamic track can detect the relative parameters of the track to be measured in a coordinate system established by a measuring reference 120 through a measuring mechanism 130 in the state that the traveling mechanism 110 moves along the track to be measured, and then the control device 140 can calculate the actual parameters of the track mileage, the track direction, the track surface height, the track distance, the triangular pits, the track included angles and the like of the track to be measured.
In order to enable the running gear 110 to move along the rail to be measured, as shown in the structure of fig. 2, 3 and 4, the running gear 110 may include a vehicle body and wheels 3 mounted on the bottom of the vehicle body, and the vehicle body may include a transverse base 1 crossing the top of the rail and a longitudinal base 2 vertically connected to one end of the transverse base 1; the longitudinal base 2 extends along the length direction of the railway track; can also be including setting up three wheel 3 on the automobile body, wherein, two wheels 3 in three wheel 3 all set up in the bottom of vertical base 2, and another wheel 3 sets up in the bottom of horizontal base 1, and three wheel 3 is triangular distribution for the structure between the three wheel 3 is more stable, and non-deformable further improves measured data's accuracy.
In order to form the measuring datum 120 during the measuring process, the measuring datum 120 may include a plurality of pairs of CP iii control points symmetrically arranged on both sides of the rail to be measured and a target prism fixedly installed on the top of the vehicle body; a pair of CP III control points can be arranged on two sides of the track to be measured at an interval of 60m, a CP III prism is arranged at each CP III control point, and the reflecting surface of the CP III prism is opposite to the total station. And each CP III control point is provided with an embedded sleeve, and the CP III prism is inserted into the embedded sleeve.
In addition, in order to facilitate the installation of the target prism, a support rod 13 is fixedly connected to the top of the vehicle body, and a fixture 14 is fixedly installed on the top of the support rod 13; the target prism is fixedly mounted on the fixture 14. A quick mounting and dismounting of the total station or the target prism can be achieved by the fixture 14.
Similarly, as shown in fig. 2, 3 and 4, an adapter plate 10 is fixedly mounted on the top of the vehicle body, and the inertial navigator 4 is fixedly mounted on the adapter plate 10. The inertial navigator 4 may be a laser inertial navigator 4.
In order to accurately measure the track mileage, as shown in the structure of fig. 4, the traveling mechanism 110 further includes rollers 7 which are height-adjustably mounted on the bottom of the vehicle body in the vertical direction; the rotary encoder 5 and the roller 7 are coaxially arranged, namely, the rotary encoder 5 can be simultaneously arranged on the wheel 3 and the roller 7; the gyro wheel 7 can pass through the support mounting in the bottom of automobile body to install compression spring between support and automobile body, make gyro wheel 7 and rail surface remain the contact all the time through compression spring, thereby can accurately record the number of turns of gyro wheel 7 through rotary encoder 5 with gyro wheel 7 coaxial rotation ground, with the distance that acquires running gear 110 and walk, finally reachs the track mileage.
The fixed wheels 8 are arranged along the extending direction of the track to be measured, and the wheel rim of the fixed wheels 8 is abutted with the inner surface of one side of the track to be measured; the movable wheel 9 can rotate around the axis line and is elastically installed at the bottom of the vehicle body with the distance between the movable wheel and the fixed wheel 8 adjustable, and the rim of the movable wheel 9 is abutted with the inner surface of the other side of the track to be measured; the distance sensor is mounted on the fixed wheel 8.
As shown in fig. 2 and 4, the traveling mechanism 110 further includes a fixed wheel 8 and a movable wheel 9 oppositely disposed along the width direction of the track to be measured; one or more fixed wheels 8 can be arranged, and one or more movable wheels 9 can also be arranged; the fixed wheels 8 can be fixedly arranged at the bottom of the train body in a rotating mode around the axial lead of the fixed wheels 8, the fixed wheels 8 are arranged along the extending direction of the railway track, and the wheel rim of each fixed wheel 8 is abutted against the inner surface of one side of the track to be measured; the movable wheel 9 can rotate around the axis line and is elastically installed at the bottom of the vehicle body with the distance between the movable wheel and the fixed wheel 8 adjustable, and the rim of the movable wheel 9 is abutted with the inner surface of the other side of the track to be measured; the measuring means 130 comprise a distance sensor mounted on the fixed wheel 8. The axial leads of the fixed wheel 8 and the movable wheel 9 are arranged along the vertical direction, the rotating shaft of the fixed wheel 8 is perpendicular to the rotating shaft of the wheel 3, the rotating shaft of the movable wheel 9 is perpendicular to the rotating shaft of the wheel 3, so that the wheel 3 rotates in a vertical plane, the flange of the wheel 3 is contacted with the rail surface of the rail to be measured, the fixed wheel 8 and the movable wheel 9 rotate in a horizontal plane, the flange of the fixed wheel 8 is contacted with the inner surface of the rail on one side of the rail to be measured in a rolling manner, and the flange of the movable wheel 9 is contacted with the inner side surface of the rail on the other side of the rail; the distance between the rails on both sides of the railway track is detected by a distance sensor provided on the fixed wheel 8. The movable wheel 9 can be fixedly arranged at the bottom of the transverse base 1; the fixed wheel 8 is fixedly arranged at the bottom of the longitudinal base 2.
The fixed wheels 8 and the movable wheels 9 arranged at the bottom of the train body are in rolling contact with the inner surface opposite to the railway track, and the track gauge can be detected through the distance sensors arranged on the fixed wheels 8, and the distance between the movable wheels 9 and the fixed wheels 8 can be elastically adjusted, so that the wheel rims of the movable wheels 9 can be always attached to the inner surface of the railway track, and the track gauge of the track to be measured can be accurately measured; the elastic adjustment of the movable sheave 9 may be realized by a compression spring provided between the movable sheave 9 and the vehicle body, or may be realized in other manners.
In the measuring process, the walking mechanism 110 can be driven to move along the track to be measured by applying a pushing force to the walking mechanism 110 manually, as shown in the structures of fig. 3 and 4, a push rod base 11 is fixedly connected to the vehicle body, a push rod 6 is hinged to the push rod base 11, and a push rod handle 12 is welded to the push rod 6.
Through the articulated setting of push rod base 11 and push rod 6 for push rod 6 can rotate relative push rod base 11, promptly, push rod 6 can rotate relative horizontal base 1, can adjust the gesture of push rod 6 through the relative rotation of push rod 6, thereby convenient operation and hard.
In the measurement process, the dynamic rail geometry measuring system 100 can be driven by either a human power, i.e. the human power pushes the push rod 6 to rotate the wheel 3 along the rail to be measured, or a mechanical power drives the wheel 3, i.e. the driving component (not shown in the figure) such as an electric motor, an internal combustion engine, etc. generates a driving force to drive the wheel 3 to rotate so as to rotate the wheel 3 along the rail to be measured; the running mechanism 110 may further include a driving assembly mounted on the vehicle body, and the driving assembly is in transmission connection with the wheel 3 and is used for driving the wheel 3 to rotate. The output shaft of the driving component can directly drive the wheel shaft of the wheel 3, and the driving force generated by the driving component can be transmitted to the wheel shaft of the wheel 3 through the transmission component, and the transmission component can be a gear transmission component, a chain transmission component, a belt transmission component and other transmission components with power transmission functions.
Because the driving assembly is arranged on the vehicle body of the travelling mechanism 110, the wheels 3 can be driven to rotate through the driving assembly, so that not only can the labor be saved and the labor intensity be reduced, but also the travelling speed of the travelling mechanism 110 can be controlled, and the measurement efficiency and the measurement precision can be improved.
In order to facilitate the transportation of the traveling mechanism 110 and improve the efficiency of use, the traveling mechanism 110 further includes an illumination lamp 17 fixedly installed on the vehicle body and handles 15 fixedly installed at both ends of the vehicle body. As shown in fig. 2 and 3, handles 15 are fixedly connected to both ends of the vehicle body. When the rail to be measured needs to be measured, the travelling mechanism 110 can be placed on the rail by hoisting or lifting the handles 15 arranged at the two ends of the vehicle body, and when the measurement is finished, the travelling mechanism 110 is moved off from the rail by the handles 15, so that the travelling mechanism 110 is convenient to carry, assemble and disassemble by the handles 15 arranged at the two ends of the vehicle body.
Meanwhile, the track line can be measured at night generally, light with enough brightness can be provided for measuring personnel through the illuminating lamp 17 arranged on the vehicle body, the dynamic track geometric state measuring system 100 can conveniently measure when the light is insufficient or the measuring work is carried out at night, so that the measurement can be carried out smoothly at night, and the service efficiency of the dynamic track geometric state measuring system is improved.
Compared with the static rail inspection trolley used in the prior art, the dynamic rail geometric state measuring system 100 greatly improves the measuring efficiency and can adapt to the rail fine adjustment measuring work in the skylight period; the overall performance is improved through reasonable application of information of the total station and multi-sensor information data fusion technologies such as the inertial navigator 4, the rotary encoder 5 and the distance sensor; by taking weighted average fusion and a Kalman filter as mathematical tools, a combined navigation system based on total station coordinates, an inertial navigator 4 and a rotary encoder 5 is designed.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (16)
1. A dynamic rail geometry measurement system, comprising:
the traveling mechanism is used for moving along the track to be measured;
a measuring reference for establishing a coordinate system;
the measuring mechanism is used for detecting coordinate values and angle values of the track to be measured in the coordinate system, and the track gauge and track mileage of the track to be measured;
and the control device is used for acquiring the measurement data of the measurement mechanism and calculating the coordinates, the attitude information, the track gauge and the track mileage of the track to be measured according to the acquired measurement data.
2. The dynamic track geometry measuring system of claim 1 wherein the running gear comprises a vehicle body and wheels mounted to the bottom of the vehicle body.
3. The dynamic rail geometry measuring system of claim 2 wherein the measuring datum comprises a plurality of pairs of CP III control points symmetrically disposed on either side of the rail to be measured and a target prism fixedly mounted on top of the vehicle body.
4. The dynamic rail geometry measurement system of claim 3 wherein the measurement mechanism comprises a total station;
and a CP III prism is arranged at each CP III control point, and the reflecting surface of the CP III prism is opposite to the total station.
5. The system as claimed in claim 4, wherein a pre-embedded sleeve is disposed at each of the CP III control points, and the CP III prism is inserted into the pre-embedded sleeve.
6. The system for measuring the geometric state of the dynamic track according to claim 5, wherein a support rod is fixedly connected to the top of the vehicle body, and a clamp is fixedly mounted on the top of the support rod;
the target prism is fixedly arranged on the fixture.
7. The dynamic track geometry measuring system of claim 6 wherein the measuring mechanism further comprises an inertial navigator, a rotary encoder, and a distance sensor;
the track to be measured is divided into a plurality of measuring units along the extending direction of the track to be measured;
the total station is used for measuring the coordinate information of the starting point and the end point of the measuring unit;
the inertial navigator is fixedly arranged at the top of the vehicle body and used for measuring the angular velocity information and the linear acceleration information of the travelling mechanism;
the rotary encoder is used for detecting the number of turns of the wheel;
the distance sensor is used for detecting the track gauge information of the track to be measured.
8. The dynamic track geometry measuring system of claim 7 wherein an adapter plate is fixedly mounted to the top of the vehicle body and the inertial navigator is fixedly mounted to the adapter plate.
9. The dynamic orbit geometry measurement system of claim 8, wherein the inertial navigator is a laser inertial navigator.
10. The dynamic rail geometry measuring system according to claim 7, wherein the traveling mechanism further comprises a fixed wheel and a movable wheel which are disposed opposite to each other in a width direction of the rail to be measured; the axial leads of the fixed wheels and the movable wheels are arranged along the vertical direction;
the fixed wheels can be fixedly arranged at the bottom of the vehicle body in a rotating mode around the axial lead of the fixed wheels, the fixed wheels are arranged along the extending direction of the track to be measured, and the wheel rim of each fixed wheel is abutted against the inner surface of one side of the track to be measured;
the movable wheel can rotate around the axis line of the movable wheel and is elastically installed at the bottom of the vehicle body with the distance between the movable wheel and the fixed wheel adjustable, and the rim of the movable wheel is abutted with the inner surface of the other side of the track to be measured;
the distance sensor is mounted on the fixed wheel.
11. The dynamic orbit geometry state measurement system of any one of claims 1-10, wherein the control means comprises a data acquisition module and a calculation module in signal connection;
the data acquisition module is in signal connection with the measuring mechanism and is used for acquiring the measuring data of the measuring mechanism;
and according to the measurement data acquired by the data acquisition module, the calculation module calculates the coordinates, the attitude information, the track gauge and the track mileage of the track to be measured.
12. A dynamic track geometry measuring system as claimed in any one of claims 1 to 10 wherein the control means is a microcomputer.
13. The system for measuring the geometric state of the dynamic track according to any one of claims 2 to 10, wherein a push rod base is fixedly connected to the vehicle body, a push rod is hinged to the push rod base, and a push rod handle is welded to the push rod.
14. The dynamic rail geometry measuring system according to any one of claims 2 to 10, wherein the running gear further comprises a lighting lamp fixedly installed to the vehicle body and a handle fixedly installed to both ends of the vehicle body.
15. The system according to any one of claims 2 to 10, wherein the running gear further comprises a driving assembly mounted on the vehicle body, and the driving assembly is in transmission connection with the wheel for driving the wheel to rotate.
16. The dynamic track geometry measuring system of claim 15 wherein the drive assembly is an electric motor or an internal combustion engine.
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| CN201921742510.0U CN211471998U (en) | 2019-10-17 | 2019-10-17 | Dynamic track geometric state measuring system |
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| CN201921742510.0U CN211471998U (en) | 2019-10-17 | 2019-10-17 | Dynamic track geometric state measuring system |
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