Railway geometry parameter measuring system, measuring method and tamping vehicle

Abstract

The embodiment of the application provides a track geometric parameter measurement system, a measurement method and a tamping vehicle, the measurement system comprises: a front measurement trolley, an intermediate measurement trolley and a rear measurement trolley; a measurement chord line is connected between the front measurement trolley, the intermediate measurement trolley and the rear measurement trolley; a front superhigh measurement sensor is arranged on the front measurement trolley, a vector distance sensor is arranged on the intermediate measurement trolley, and a rear superhigh measurement sensor is arranged on the rear measurement trolley; a sensor mounting frame is arranged on the intermediate measurement trolley, and a right leveling sensor and a left leveling sensor are arranged on the sensor mounting frame; during measurement, the measurement chord line is tensioned between the front measurement trolley and the rear measurement trolley and passes through the right leveling sensor, the left leveling sensor and the vector distance sensor; the beneficial effect of simple structure is suitable for the technical field of railway track measurement.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of railway track measurement, in particular to a track geometric parameter measurement system, a measurement method and a tamping vehicle. BACKGROUND

[0002] The railway track, as the ground foundation for train operation, has the characteristics of integrity and dispersion, and is one of the important basic equipment supporting the high-speed operation of trains.

[0003] However, with the use and the passage of time, the railway track inevitably deforms, and the geometric parameters gradually deviate from the original state, affecting the smoothness. Therefore, during the long-term maintenance process after the railway track is put into operation, high-precision detection of the track geometric smoothness is needed to ensure that the track geometric state meets the technical requirements of high smoothness and high stability.

[0004] The tamping vehicle, as a railway track rectification device, one of its functions is to eliminate the deviations of the track in use, such as track orientation, left-right level, and front-back height. The line deviation measurement system equipped with the tamping vehicle needs to arrange three chord lines, two of which are used to measure the front-back height of the left and right tracks, and the third chord line is used to measure the direction of the steel rail. The three chord lines penetrate through the vehicle body, increasing the complexity of the overall vehicle structure design, especially the two chord lines used to measure the height of the left and right tracks, which has a certain impact on the airtightness and integrity of the driver's cabin.

[0005] The above information disclosed in the background art is only used to strengthen the understanding of the background of the present application, and therefore it can contain information which does not form the prior art known to those skilled in the art. SUMMARY

[0006] The embodiments of the present application provide a track geometric parameter measurement system, a measurement method and a tamping vehicle to solve the technical problem of complex structure of the traditional measurement system.

[0007] According to a first aspect of the embodiments of the present application, a track geometric parameter measurement system is provided, comprising: a front measurement trolley, a middle measurement trolley and a rear measurement trolley; a measurement chord line is connected between the front measurement trolley, the middle measurement trolley and the rear measurement trolley; a front super-elevation measurement sensor is arranged on the front measurement trolley, a gage sensor is arranged on the middle measurement trolley, and a rear super-elevation measurement sensor is arranged on the rear measurement trolley; a sensor mounting frame is arranged on the middle measurement trolley, and a right levelling sensor and a left levelling sensor are arranged on the sensor mounting frame; during measurement, the measurement chord line is tensioned between the front measurement trolley and the rear measurement trolley and penetrates through the right levelling sensor, the left levelling sensor and the gage sensor.

[0008] Preferably, the sensor mounting frame comprises: a left measuring rod and a right measuring rod; a left support rod is arranged on the left measuring rod, and a right support rod is arranged on the right measuring rod; the left levelling sensor is mounted on the left support rod, and the right levelling sensor is mounted on the right support rod; and the movable ends of the right levelling sensor and the left levelling sensor are both fixed on the measuring chord.

[0009] Preferably, the left support rod and the right support rod are of the same structure; the left support rod comprises: a horizontal rod and a vertical rod, one end of the horizontal rod is connected with the left support rod, the other end of the horizontal rod is connected with one end of the vertical rod, and the other end of the vertical rod extends downward; and the left levelling sensor is mounted on the end of the other end of the vertical rod.

[0010] Preferably, the two sides of the axle of the intermediate measuring trolley are respectively provided with support structures; the left measuring rod and the right measuring rod are respectively arranged on the two support structures; and the left measuring rod and the right measuring rod slide relative to each other along the direction of the axle.

[0011] Preferably, a first horizontal rod and a second horizontal rod are arranged between the left measuring rod and the right measuring rod; and the intermediate superelevation sensor is mounted on the first horizontal rod.

[0012] Preferably, the two ends of the second horizontal rod are connected to the left measuring rod and the right measuring rod through corresponding sliding sleeve assemblies; and the second horizontal rod vertically slides relative to the left measuring rod or the right measuring rod.

[0013] Preferably, the number of the intermediate measuring trolleys is one or more.

[0014] According to a second aspect of the embodiments of the present application, a track geometric parameter measurement method is provided, which adopts the track geometric parameter measurement system as described above, and comprises the following steps

[0015] The front superelevation measurement sensor and the rear superelevation measurement sensor respectively collect the track superelevation values at the positions of the front measuring trolley and the rear measuring trolley;

[0016] During the movement of the entire measurement system along the steel rail, the intermediate measuring trolley produces vertical displacement and transverse displacement along with the steel rail; under the action of the tension force of the measuring chord, the displacement of the intermediate measuring trolley drives the right levelling sensor, the left levelling sensor and the deflection sensor to produce displacement;

[0017] The left levelling sensor, the right levelling sensor and the deflection sensor respectively collect the left rail longitudinal level value, the right rail longitudinal level value and the deflection value at the steel rail where the intermediate measuring trolley is located.

[0018] According to a third aspect of an embodiment of the present application, a tamping vehicle with a track geometry parameter measurement system is provided, comprising: a tamping vehicle body, on which the track geometry parameter measurement system as described above is provided.

[0019] The embodiments of the present application adopt the above technical solutions, which have the following technical effects:

[0020] The embodiment of the present application provides a track geometry parameter measurement system. During measurement, the front measuring trolley, the middle measuring trolley and the rear measuring trolley are all close to the rail on the same side, and the front superelevation measurement sensor and the rear superelevation measurement sensor are used to collect the track superelevation values ​​at the positions of the front measuring trolley and the rear measuring trolley respectively. The left leveling sensor, the right leveling sensor and the sagittal distance sensor are used to collect the left track longitudinal level value, the right track longitudinal level value and the sagittal distance value at the rail where the middle measuring trolley is located respectively. Compared with the traditional method, only a single measuring chord is needed to complete the measurement of the track geometry parameters, and there is no need to install a leveling pole on the front measuring trolley and the rear measuring trolley. This reduces the use of the measuring chord and the related ancillary facilities required for deploying the measuring chord, making the structure simple and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 A schematic structural diagram of a track geometry parameter measurement system provided in an embodiment of the present application;

[0023] Figure 2 A top view of a track geometry parameter measurement system provided in an embodiment of the present application;

[0024] Figure 3 A flow chart of a method for measuring track geometric parameters provided in an embodiment of the present application;

[0025] Reference numerals:

[0026] 1 is the front measuring trolley, 2 is the middle measuring trolley, 3 is the rear measuring trolley, 4 is the left track, 5 is the measuring chord, 6 is the right leveling sensor, 7 is the left leveling sensor, 8 is the sagittal distance sensor, 9 is the rear superelevation measuring sensor, 10 is the middle superelevation sensor, 11 is the front superelevation measuring sensor, 12 is the right track, 13 is the supporting structure, 14 is the sensor mounting frame, 15 is the left measuring rod, 16 is the right measuring rod, 17 is the left support rod, and 18 is the right support rod.

[0027] 141 is the first crossbar, 142 is the second crossbar,

[0028] 171 is a transverse rod, and 172 is a vertical rod. DETAILED DESCRIPTION

[0029] In order to make the technical solutions and advantages of the embodiments of the present application clearer, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0030] Embodiment one

[0031] As shown in Figure 1 and Figure 2 , a track geometric parameter measurement system in an embodiment of the present application comprises: a front measurement trolley 1, an intermediate measurement trolley 2 and a rear measurement trolley 3; a measurement chord 5 is connected between the front measurement trolley 1, the intermediate measurement trolley 2 and the rear measurement trolley 3; a front super-elevation measurement sensor 11 is arranged on the front measurement trolley 1, a vector distance sensor 8 is arranged on the intermediate measurement trolley 2, and a rear super-elevation measurement sensor 9 is arranged on the rear measurement trolley 3.

[0032] A sensor mounting frame 14 is arranged on the intermediate measurement trolley 2, and a right levelling sensor 6 and a left levelling sensor 7 are arranged at the middle position of the bottom of the sensor mounting frame 14; during measurement, the measurement chord 5 is tensioned between the front measurement trolley 1 and the rear measurement trolley 3 and passes through the right levelling sensor 6, the left levelling sensor 7 and the vector distance sensor 8.

[0033] In the embodiment, the front super-elevation measurement sensor 11 arranged on the front measurement trolley 1 is used to measure the track super-elevation value at the position of the front measurement trolley 1; the right levelling sensor 6 arranged on the intermediate measurement trolley 2 is used to measure the displacement change of the contact point between the intermediate measurement trolley 1 and the right track 12 relative to the measurement chord 5 in the vertical direction, the left levelling sensor 7 arranged on the intermediate measurement trolley 2 is used to measure the displacement change of the contact point between the intermediate measurement trolley 2 and the left track relative to the measurement chord 5 in the vertical direction, the vector distance sensor 8 arranged on the intermediate measurement trolley 2 is used to measure the displacement change of the left track 4 or the right track 12 relative to the measurement chord 5 in the horizontal direction; and the rear super-elevation measurement sensor 9 arranged on the rear measurement trolley 3 is used to measure the track super-elevation value at the position of the rear measurement trolley 3.

[0034] In the present application, the direction parallel to the sleeper is the horizontal direction, the direction along the gravity line is the vertical direction, and the direction along the extension of the steel rail is the longitudinal direction.

[0035] The track geometric parameter measurement system provided in the embodiment of the present application is used for:

[0036] The front measuring trolley, the middle measuring trolley and the rear measuring trolley are close to the same side rail (left rail 4 or right rail 12) and the track super elevation values at the positions of the front measuring trolley and the rear measuring trolley are collected by the front super elevation measuring sensor and the rear super elevation measuring sensor respectively, and the left rail longitudinal level value, the right rail longitudinal level value and the vector value at the position of the middle measuring trolley are collected by the left leveling sensor, the right leveling sensor and the vector sensor respectively. Compared with the traditional method, only a single measuring chord is needed to complete the measurement of the track geometric parameters, and the leveling rod does not need to be installed on the front measuring trolley and the rear measuring trolley, which reduces the use of the measuring chord and the related auxiliary facilities needed for deploying the measuring chord, so that the structure is simple and the practicality is extremely strong.

[0037] In the present application, the number of the middle measuring trolleys 2 is one or more.

[0038] When the number of the middle measuring trolleys 2 is two, four-point measurement is formed with the front measuring trolley 1 and the rear measuring trolley 3, so as to improve the measurement accuracy.

[0039] Embodiment two

[0040] On the basis of the first embodiment, a track geometric parameter measurement system is shown in FIG. 2, which comprises a front measuring trolley 1, a middle measuring trolley 2 and a rear measuring trolley 3. Figure 1 The sensor mounting frame 14 comprises a left measuring rod 15 and a right measuring rod 16, a left supporting rod 17 is arranged on the left measuring rod 15, and a right supporting rod 18 is arranged on the right measuring rod 16; the left leveling sensor 7 is mounted on the left supporting rod 17, and the right leveling sensor 6 is mounted on the right supporting rod 18; the movable ends of the right leveling sensor 6 and the left leveling sensor 7 are fixed on the measuring chord 5.

[0041] Specifically, as shown in FIG. 3, the right leveling sensor 6 and the left leveling sensor 7 are usually mounted on the top of the left measuring rod 15 and the right measuring rod 16 on the traditional tamping car, so that each of the front measuring trolley and the rear measuring trolley needs a chord line; in the present embodiment, the mounting positions of the right leveling sensor 6 and the left leveling sensor 7 are arranged in the middle of the middle measuring trolley 2, and the middle measuring chord 5 is utilized to simplify the structure. Figure 1

[0042] At the same time, as shown in FIG. 4, the right leveling sensor 6 and the left leveling sensor 7 are extended and fixed on the left measuring rod 15 and the right measuring rod 16 by using the supporting structure (the left supporting rod 17 and the right supporting rod 18); in the present application, since the position of the chord line is determined by the front measuring trolley and the rear measuring trolley and is unchanged during measurement, when the left measuring rod and the right measuring rod have upward and downward displacement, the displacement amount can be measured by the right leveling sensor 6 and the left leveling sensor 7. Figure 1 Specifically, as shown in FIG. 5, the right leveling sensor 6 and the left leveling sensor 7 are usually mounted on the top of the left measuring rod 15 and the right measuring rod 16 on the traditional tamping car, so that each of the front measuring trolley and the rear measuring trolley needs a chord line; in the present embodiment, the mounting positions of the right leveling sensor 6 and the left leveling sensor 7 are arranged in the middle of the middle measuring trolley 2, and the middle measuring chord 5 is utilized to simplify the structure.

[0043] Figure 1 ​​​Figure 1 As shown in the figure, the left support rod 17 and the right support rod 18 have the same structure; the left support rod 17 comprises a horizontal rod 171 and a vertical rod 172, one end of the horizontal rod 171 is connected with the left support rod 17, the other end of the horizontal rod 171 is connected with one end of the vertical rod 172, and the other end of the vertical rod 172 extends downward; the left level sensor 7 is installed at the end of the other end of the vertical rod 172.

[0044] In this embodiment, the installation structure of the left / right support rod, the right level sensor 6 and the left level sensor 7 and the vertical rod is only one implementation scheme, and the structure can also be other schemes, for example, the left / right support rod can also be an inclined rod or an arc-shaped rod; and the left / right support rod can also be installed on the same side of the middle measuring trolley, as long as the scheme can realize that the right level sensor 6 and the left level sensor 7 measure the displacement.

[0045] Further, as shown in the figure, Figure 1 As shown in the figure, the two sides of the axle of the middle measuring trolley 2 are respectively provided with support structures 13; the left measuring rod 15 and the right measuring rod 16 are respectively arranged on the two support structures 13; the left measuring rod 15 and the right measuring rod 16 slide relative to each other along the direction of the axle.

[0046] Further, as shown in the figure, Figure 1 The first horizontal rod 141 and the second horizontal rod 142 are arranged between the left measuring rod 15 and the right measuring rod 16; the middle superelevation sensor 10 is installed on the first horizontal rod 141.

[0047] Further, the two ends of the second horizontal rod 142 are respectively connected to the left measuring rod 15 and the right measuring rod 16 through corresponding sliding sleeve assemblies; the second horizontal rod 142 vertically slides relative to the left measuring rod 15 or the right measuring rod 16.

[0048] The track geometric parameter measurement system provided by the embodiment of the present application can realize the measurement of the track geometric parameters when the whole measurement system moves along the railway track, the middle measuring trolley can produce vertical and horizontal displacement along with the steel rail, so that the left level sensor, the right level sensor and the offset sensor installed on the sensor mounting frame can collect the horizontal or vertical displacement of the middle measuring trolley relative to the measuring chord, and the measurement of the track geometric parameters is realized.

[0049] In addition, the present application also provides a track geometric parameter measurement method, which adopts the track geometric parameter measurement system as described above, as shown in the figure, Figure 3 The measurement method comprises the following steps:

[0050] The front superelevation measurement sensor and the rear superelevation measurement sensor respectively collect the track superelevation values at the positions of the front measuring trolley and the rear measuring trolley;

[0051] During the movement of the whole measurement system along the steel rail, the intermediate measurement trolley generates vertical and lateral displacement along with the steel rail; under the action of the tension of the measurement chord, the displacement of the intermediate measurement trolley drives the right leveling sensor, the left leveling sensor and the vector sensor to generate displacement;

[0052] The left leveling sensor, the right leveling sensor and the vector sensor respectively collect the left rail longitudinal level value, the right rail longitudinal level value and the vector value at the steel rail where the intermediate measurement trolley is located.

[0053] In the present application, the method and the system are based on the same inventive concept, and since the principles of the method and the system for solving problems are similar, the implementation of the method and the system can be referred to each other, and the repeated parts will not be described again.

[0054] In addition, the present application also provides a tamping vehicle with a track geometric parameter measurement system, comprising: a tamping vehicle body, wherein the track geometric parameter measurement system as described above is arranged on the tamping vehicle body.

[0055] In summary, in the present application, one measurement chord is arranged to pass through the right leveling sensor, the left leveling sensor, the vector sensor of the front measurement trolley and the intermediate measurement trolley, and the rear measurement trolley; the relative displacement between the left leveling sensor, the right leveling sensor and the vector sensor and the same measurement chord constitutes the left rail longitudinal level value, the right rail longitudinal level value and the vector value in the measurement system, compared with the traditional method, the structure is simplified, so that the whole vehicle structure is more compact and simple.

[0056] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system or a computer program product. Therefore, the present application can adopt a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc., which contains computer usable program code.

[0057] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0058] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or connote relative importance or a number of indicated technical features. Thus, features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0059] In the present application, unless otherwise explicitly and specifically defined, the terms "mounting", "connecting", "connecting", "fixing" and the like should be interpreted in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0060] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0061] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A track geometry parameter measurement system, characterized in that: include: A front measuring trolley (1), an intermediate measuring trolley (2) and a rear measuring trolley (3); a measuring string (5) is connected between the front measuring trolley (1), the intermediate measuring trolley (2) and the rear measuring trolley (3); a front superelevation measuring sensor (11) is provided on the front measuring trolley (1), a vector distance sensor (8) is provided on the intermediate measuring trolley (2), and a rear superelevation measuring sensor (9) is provided on the rear measuring trolley (3); The intermediate measuring trolley (2) is provided with a sensor mounting frame (14), and a right leveling sensor (6) and a left leveling sensor (7) are provided at the middle position of the bottom of the sensor mounting frame (14); During measurement, the measuring string (5) is stretched between the front measuring trolley (1) and the rear measuring trolley (3) and passes through the right leveling sensor (6), the left leveling sensor (7) and the vector distance sensor (8); The sensor mounting frame (14) comprises: a left measuring rod (15) and a right measuring rod (16); The left measuring rod (15) is provided with a left support rod (17), and the right measuring rod (16) is provided with a right support rod (18); the left leveling sensor (7) is mounted on the left support rod (17), and the right leveling sensor (6) is mounted on the right support rod (18); the movable ends of the right leveling sensor (6) and the left leveling sensor (7) are both fixed on the measuring string (5); The left support rod (17) and the right support rod (18) have the same structure; The left support rod (17) comprises: a transverse rod (171) and a vertical rod (172), one end of the transverse rod (171) is connected to the left support rod (17), the other end of the transverse rod (171) is connected to one end of the vertical rod (172), and the other end of the vertical rod (172) extends downward; The left leveling sensor (7) is installed at the end of the other end of the vertical rod (172); There are two intermediate measuring trolleys (2), which form a four-point measurement method together with the front measuring trolley (1) and the rear measuring trolley (3).

2. A track geometry parameter measurement system according to claim 1, characterized in that: Support structures (13) are respectively provided on both sides of the axle of the intermediate measuring trolley (2); The left measuring rod (15) and the right measuring rod (16) are respectively and correspondingly arranged on the two supporting structures (13); The left measuring rod (15) and the right measuring rod (16) slide relatively along the axle direction.

3. A track geometry parameter measurement system according to claim 1, characterized in that: A first crossbar (141) and a second crossbar (142) are provided between the left measuring rod (15) and the right measuring rod (16); An intermediate super-height sensor (10) is mounted on the first crossbar (141).

4. A track geometry parameter measurement system according to claim 3, characterized in that: The two ends of the second crossbar (142) are respectively connected to the left measuring rod (15) and the right measuring rod (16) through corresponding sliding sleeve assemblies; The left measuring rod (15) or the right measuring rod (16) slides vertically relative to the second crossbar (142).

5. A method for measuring track geometric parameters, characterized in that: The measuring method adopts the track geometry parameter measuring system according to any one of claims 1 to 4, and the measuring method comprises the following steps: The front superelevation measurement sensor and the rear superelevation measurement sensor respectively collect the track superelevation values ​​at the locations of the front measuring trolley and the rear measuring trolley; As the entire measuring system moves along the rail, the middle measuring trolley moves vertically and horizontally along with the rail. Under the action of the tension of the measuring string, the displacement of the middle measuring trolley drives the right leveling sensor, left leveling sensor, and vector distance sensor to move. The left leveling sensor, the right leveling sensor and the sagittal distance sensor respectively collect the left rail longitudinal leveling value, the right rail longitudinal leveling value and the sagittal distance value of the rail where the middle measuring trolley is located.

6. A tamping vehicle with a track geometry parameter measurement system, comprising: The tamping vehicle body is characterized in that the track geometry parameter measurement system according to any one of claims 1 to 4 is provided on the tamping vehicle body.

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