WO2017215303A1

WO2017215303A1 - Method for detecting assembling precision of medium-low speed maglev track panel

Info

Publication number: WO2017215303A1
Application number: PCT/CN2017/077507
Authority: WO
Inventors: 孙立; 王森荣; 李伟强; 全顺喜; 娄会彬; 韦合导
Original assignee: 中铁第四勘察设计院集团有限公司
Priority date: 2016-06-12
Filing date: 2017-03-21
Publication date: 2017-12-21
Also published as: CN106123741A

Abstract

A method for detecting assembling precision of a medium-low speed maglev track panel, the method comprising the following steps: (1) collecting and informationizing design data corresponding to track panel precision detection parameters to obtain a standardized parameter data sheet; (2) carrying out actual measurement or detection on a portion of track panel parameters which are for use in detecting track panel precision by using a detection platform to obtain an actual parameter value; (3) carrying out actual measurement or detection on the other portion of track panel parameters which are for detecting track panel precision by using a measure ruler to obtain an actual parameter value; and (4) using detection data obtained from the step (2) and step (3) to generate a corresponding parameter detection value of the track panel, and comparing with a parameter precision detection standard to obtain a detection result, thus detecting the precision of each machining and laying parameter of the track panel. The method can be used to quickly and accurately detect the various parameters of a medium-low speed maglev track panel, thus reducing the amount of repeated manual detection and processes, saving time and man-power, as well as achieving informatization management and calling on track panel manufacturing information.

Description

Method for detecting assembly accuracy of medium and low speed magnetic floating rail row

[Technical field]

The invention belongs to the technical field of medium and low speed maglev track structure, and particularly relates to a method for detecting assembly precision of medium and low speed magnetic floating track row precision.

[Background technique]

At present, in the middle and low-speed maglev circuit track laying, it is usually first processed and assembled in the factory to form a steel frame rail row, and then the formed rail row and the lower foundation are integrally connected by secondary casting to form a track structure.

The safety, smoothness and comfort of the mid-low speed maglev train must require the track to have good geometry and precision. Therefore, it is necessary to test the pavement structure in the track laying, which is to control the geometry and accuracy of the track. The key link.

There are a large number of precision parameters involved in the detection of the track row accuracy, such as the gauge distance, the length of the rail row, the spacing of the adjacent sleepers, the gap between the induction plate and the F-shaped steel, and the coplanarity, etc., and the data is complicated and the volume is huge. Some medium and low speed maglev track orbital accuracy detection methods are usually carried out by a single inspection tool, and various parameters are usually detected independently, lacking effective coordination, and this method makes a lack of systematic correspondence with the previous design data. The detection accuracy is poor, and the requirements for the detection accuracy of the low- and medium-speed magnetic floating rails are not satisfied, and it takes time and effort, which has an adverse effect on the laying schedule.

Moreover, the current detection method cannot uniformly process the assembly accuracy and the detection data, and cannot support the subsequent rail management and maintenance, so that the post management and data maintenance of the rail row cannot be effectively coordinated with the previous precision control.

Summary of the invention

In view of the above defects or improvement requirements of the prior art, the present invention provides a method for detecting the assembly accuracy of a medium and low speed magnetic floating rail row, which is improved by the optimization of the detection parameter data and the informationization of the acquisition mode, and compared with the design parameter data. Achieve high-precision and high-efficiency assembly accuracy detection, and solve the technical problems that the current precision detection has low efficiency and low precision and cannot be well matched with the later rail maintenance.

In order to achieve the above object, according to the present invention, a method for detecting assembly accuracy of a medium and low speed magnetic floating rail row is provided, which includes the following steps:

(1) Collecting and informatizing the design data corresponding to the track row accuracy detection parameters, and obtaining a standardized parameter data table as a precision detection standard;

(2) lifting the rail row to be inspected to a specified position of the detecting platform, and actually measuring or detecting a part of the rail row parameters for the rail row precision detecting through the detecting platform, and obtaining actual parameter values, wherein the part of the rail row parameters Including the curve radius of the rail row, the height of the rail row, the coplanarity and the length of the rail row;

(3) Actual measurement or detection is performed on the other part of the rail row parameters for the rail row accuracy detection by the measuring ruler, and the other part of the rail row parameters includes the rail row height, the rail row vector height, and the F rail. Side angle, rail length, adjacent pillow spacing, reference hole deviation on the F rail, and cross-sectional shape and size;

(4) Using the detection data of step (2) and step (3), generating the corresponding parameter detection value of the rail row, and comparing with the parameter precision detection standard generated in step (1), obtaining the detection result, the rail can be realized. Accuracy detection of various parameters of processing and laying.

As a further preferred embodiment of the present invention, the steps of correcting and improving the parameter data for assembling and manufacturing the rail row by using the above-described steps of detecting and determining the result may be included for secondary processing and correction of the rail row to satisfy design and laying. Precision requirements.

As a further preferred embodiment of the present invention, the corresponding parameter detection value of the rail row can be stored centrally with the design parameters and the corresponding detection results, used in the railroad track acceptance laying, and used for later construction and operation maintenance.

As a further preferred embodiment of the present invention, the centralized storage can be implemented by a barcode, a two-dimensional code, or other medium usable for scanning and reading.

As a further preferred embodiment of the present invention, the coplanarity includes a magnetic pole face coplanarity of the same cross-section four-pole surface coplanarity, an arbitrary length of the rail row length direction, and a rail-row magnetic pole plane flatness.

As a further preferred embodiment of the present invention, the measuring ruler may be a gauge gauge, a pull gauge, a feeler gauge, an angle gauge or a depth gauge.

In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:

(1) According to the comparison between the measurement data and the design parameter values of the rail-row precision detecting system, the invention compares the control indexes of the important parameters of the rail row, determines the assembly and manufacturing precision of the rail row, and generates a test report including the assembly adjustment of the rail row. Quick and high-precision inspection of the assembled rails improves the assembly accuracy of the rails, thereby improving the safety, stability and ride comfort of the train.

(2) The invention can quickly and accurately detect various parameters of the low-speed magnetic floating rail row, and reduces the weight The complex manual detection and comparison process saves time and effort, and can realize the information management call and interaction of the rail manufacturing information.

(3) The invention can quickly place the rail row in the detection process, effectively improve the speed of the precision detection, and improve the detection efficiency.

[Description of the Drawings]

1 is a flow chart of a method of detecting accuracy in accordance with one embodiment of the present invention.

[detailed description]

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Further, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

According to an embodiment of the present invention, a method for detecting assembly accuracy of a medium and low speed magnetic floating rail row includes the following steps: input and normalization of design information, use of a rail detection platform, automated multi-parameter detection mechanism, and detection information Pass-and-receive, test report generation, rail assembly and manufacturing improvement suggestions, rail-row design and manufacturing database creation, generation of track-row information QR code, rail-laying information database.

The specific process of inputting and normalizing design information can be:

According to the line situation, using the automatic calculation software, the design information of the rails at different positions is calculated and used as the basis for the comparison of the rail alignment accuracy detection. According to the requirements of the test project, the main technical index parameters for the control are extracted and extracted, and the corresponding database files are generated. And paste the corresponding two-dimensional code identification label on the track for later use.

Through the rail-row detection platform, the partial parameter values of the rail row are detected, including:

Scan the two-dimensional code above the rail row to get the design information of the rail row, and hoist the rail row to the specified position of the inspection platform. Fix the rail row, check whether the detection mechanism is reset, and start the inspection and measurement of the corresponding parameters of the rail row after resetting. The monitoring platform can detect the multiple assembly technical parameters of the rail row at one time, and obtain the curve of the rail row through the corresponding calculation program. Assembly information such as radius, height of the rail row, flatness, coplanarity of the pole faces, and length of the rail row.

Through the automated multi-parameter detection mechanism, the other part of the detection parameter value of the rail row is obtained, which specifically includes:

Automated multi-parameter inspection mechanism, including height inspection of the rail row, vector height inspection of the rail row, outside the F rail Check the face angle and check the length of the rail. At the same time, the left and right parameter detection mechanisms move synchronously, and the curve radius deviation of the rail row is calculated according to the detection parameters, and the gauge deviation after assembly is performed.

Table 1 is the parameters involved in the detection of the accuracy of the rail row in the present embodiment, and the specific error requirements and detection tools.

Table 1 magnetic floating rail row detection index parameters

序号Serial number	检查项目Check item	误差要求(mm)Error requirement (mm)
11	轨距gauge	±1±1
22	轨排长度Rail length	±2±2
33	相邻两枕枕间距Adjacent two pillow spacing	±2±2
44	感应板与F型钢的间隙Gap between induction plate and F-shaped steel	≤1≤1
55	同一横截面四磁极面共面度Four-pole surface coplanarity of the same cross section	≤1≤1
66	轨排磁极面平面度Rail row pole plane flatness	≤1/3000，≤2/全长≤1/3000, ≤2/full length
99	轨排长度方向任意4米磁极面共面度Any 4 meter magnetic pole face coplanarity in the length of the rail row	≤1.5≤1.5
1010	基准孔偏差Reference hole deviation	—-
1111	断面各尺寸Section size	—-
1212	截面形状Section shape	—-
1313	曲线轨排的曲率线型Curvature line type of curved rail row	—-

According to the detection information detected by the above detection platform and the automated multi-parameter detection mechanism, the detection information is transmitted to a unified information processing device for processing, the transmission signal can be designed according to the need of the sampling frequency, and the signal is transmitted to the working computer through the collecting device, for example, and Furthermore, the values of the detection parameters of the rail row are directly calculated.

The follow-up test can also generate a test report based on the calculated test parameter values, and then can be compared with the design input parameters to automatically determine whether the track check indicators meet the requirements in the acceptance specification.

In a preferred embodiment, further corrections or adjustments can be made to the assembly and manufacturing accuracy of the rails based on the above comparison. For example, combined with the judgment report, the generation can be transformed into a rail that meets the design and laying accuracy by simple correction and other processing methods, and whether the rail can be subjected to secondary machining and correction, and corresponding processing and correction are given. Measured value.

In a preferred embodiment, a rail design manufacturing database can also be created. According to the test results, the relevant structural parameters before the laying of the rails are generated, stored together with the design parameters, and the inspection and acceptance of the rails are simultaneously performed. If the two-dimensional code is produced, the integrated information management of the rail row manufacturing, acceptance and laying will be formed, which is convenient for later construction and operation and maintenance.

Those skilled in the art will appreciate that the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention, All should be included in the scope of protection of the present invention.

Claims

A method for detecting assembly precision of a medium and low speed magnetic floating rail row, comprising the following steps:

(1) Collecting and informatizing the design data corresponding to the track row accuracy detection parameters, and obtaining a standardized parameter data table as a precision detection standard;

(2) lifting the rail row to be inspected to a specified position of the detecting platform, and actually measuring or detecting a part of the rail row parameters for the rail row precision detecting through the detecting platform, and obtaining actual parameter values, wherein the part of the rail row parameters Including the curve radius of the rail row, the height of the rail row, the coplanarity and the length of the rail row;

(3) Actual measurement or detection is performed on the other part of the rail row parameters for the rail row accuracy detection by the measuring ruler, and the other part of the rail row parameters includes the rail row height, the rail row vector height, and the F rail. Side angle, rail length, adjacent pillow spacing, reference hole deviation on the F rail, and cross-sectional shape and size;

(4) Using the detection data of step (2) and step (3), generating the corresponding parameter detection value of the rail row, and comparing with the parameter precision detection standard generated in step (1), obtaining the detection result, the rail can be realized. Accuracy detection of various parameters of processing and laying.
The method for detecting assembly accuracy of a medium-low speed magnetic floating rail row according to claim 1, further comprising the steps of correcting and improving parameter data for assembling and manufacturing the rail row by using the above-mentioned steps of detecting and determining the result, Used for secondary processing and correction of rails to meet design and laying accuracy requirements.
The method for detecting assembly accuracy of a medium-low speed magnetic floating rail row according to claim 1 or 2, wherein the corresponding parameter detection value of the rail row can be stored centrally with design parameters and corresponding detection results for rail acceptance In the paving, as well as for later construction and operation and maintenance, please check at any time.
The method for detecting the assembly accuracy of a medium-low speed magnetic floating rail row according to any one of claims 1 to 3, wherein the centralized storage can be realized by a barcode, a two-dimensional code or other medium usable for scanning and reading.
The method for detecting assembly accuracy of a medium-low speed magnetic floating rail row according to any one of claims 1 to 4, wherein the coplanarity includes a cross-section of the same magnetic cross-section of the four-pole surface of the rail row, and a length of the rail row Magnetic pole face coplanarity and rail row pole face flatness of any length.
The method for detecting the assembly accuracy of a medium-low speed magnetic floating rail row according to any one of claims 1 to 5, wherein the measuring ruler is a gauge ruler, a wire gauge, a feeler gauge, an angle ruler or a depth gauge.