Railway wagon center sill deflection deformation monitoring and correcting system and application method thereof

Abstract

The invention discloses a railway wagon center sill deflection deformation monitoring and correcting system and an application method thereof. The railway wagon center sill deflection deformation monitoring and correcting system comprises a platform used for placing and fixing a center sill, and the platform is provided with a laser distance monitoring mechanism and a correcting mechanism; the laser distance monitoring mechanism comprises five laser transmitters symmetrically arranged on the middle beam and five laser distance measuring receivers correspondingly arranged on the platform; the correcting mechanism comprises five groups of correcting oil cylinders which are correspondingly arranged; the monitoring and correcting method comprises the steps of monitoring by adopting the laser distance monitoring mechanism and correcting by adopting the correcting oil cylinder, wherein the monitoring is qualified by adopting standard curve range comparison. The system and the method are easy to operate, and data are visual and reliable; the real-time and comprehensive detection can be realized, one-by-one and one-by-one detection can be realized, and rapid conversion between correction and detection can be realized; the consistency of the deflection of the middle beam, the upwarp size control and the sagging size control of the traction beam is effectively ensured; in combination with an intelligent control system, the correction process can further improve the quality and efficiency of subsequent correction of the large database.

Description

Technical Field

[0001] The invention belongs to the technical field of metal processing deformation monitoring, in particular to the technical field of large steel structure processing deformation monitoring, and specifically relates to a railway freight car center beam deflection deformation monitoring and correction system and an application method thereof. Background Art

[0002] The center beam of a railway freight car is a large steel structure made by welding. Deformation usually occurs during the welding and processing process, and it is necessary to monitor the deflection changes in real time to provide data support for deformation correction.

[0003] For example, the C70E open wagon is used for standard gauge railways and is mainly used as a general-purpose railway vehicle for transporting coal, ore, building materials, machinery and equipment, steel, wood and other goods. At present, the processing and production procedures are all carried out in the order of the middle beam first, then the chassis and finally the whole vehicle loading. Therefore, the quality of the middle beam is the basis for determining the quality of the final wagon vehicle; but in the actual production process, due to the super-large structure of the middle beam, the overall deflection often does not meet the requirements, and the traction beam warping and sagging dimensions are inconsistent. Summary of the invention

[0004] The present invention discloses a railway freight car center beam deflection deformation monitoring and correction system and its application method in view of the deficiencies of the prior art. The present invention aims to provide a railway freight car center beam deflection deformation monitoring and correction system and its application method, which has high detection efficiency, accurate data, simple operation, and can achieve real-time monitoring and coordinated correction.

[0005] The present invention is achieved through the following technical solutions:

[0006] A railway freight car center beam deflection deformation monitoring and correction system, characterized by: comprising a platform for placing and fixing the center beam, the platform being provided with a laser distance monitoring mechanism and a correction mechanism;

[0007] The laser distance monitoring mechanism includes: five laser transmitters are detachably arranged on the monitoring middle beam and are all connected to the control system signal, wherein one is arranged at the longitudinal center of the middle beam, one is arranged at each of the center plates at the longitudinal ends of the middle beam, and one is arranged at each of the ends of the traction beams at the longitudinal ends of the middle beam; five laser distance measuring receivers are fixedly arranged at the corresponding positions of the laser transmitters on the platform or on the side of the platform and are all connected to the control system signal;

[0008] The correction mechanism includes: a correction cylinder with an upward piston arranged at the bottom of the longitudinal center of the platform, a correction cylinder with a downward piston arranged above the center plate position at both ends of the longitudinal direction of the middle beam on the platform, and a correction cylinder with an upward piston arranged below the end of the traction beam at both ends of the longitudinal direction of the middle beam on the platform. Each correction cylinder is connected to the control system.

[0009] The monitoring and correction of the deflection deformation of the center beam of a railway freight car of the present invention adopts the above-mentioned monitoring and correction system, and comprises the following steps:

[0010] monitor:

[0011] S1. The middle beam is hoisted to the correction platform station, a laser transmitter is installed on the middle beam, and a laser ranging receiver is fixed on the platform tooling or wall;

[0012] S2, the laser transmitter emits laser, the receiver receives laser, and at the same time, the monitoring and control system uses the values ​​of the center plate positions at both ends of the middle beam as the base value, and forms a five-point curve according to the values;

[0013] S3, comparing the five-point curve obtained by monitoring with the range of the standard curve. When each point of the curve is within the range of the standard curve, it is judged as qualified. When any point of the five-point curve obtained by monitoring exceeds the range of the standard curve, it is judged as unqualified.

[0014] Correction:

[0015] S4. When it is judged as unqualified, the monitoring and control system controls the oil cylinder to correct the unqualified size and position. The degree of correction is provided by the data in the big database or the module directly corrects it;

[0016] S5. Laser distance measurement continuously measures, tracks and displays the correction value in real time;

[0017] S6. After the correction value meets the standard curve range, stop the correction, release the pressure, and release all the pressure on the middle beam;

[0018] S7. After the entire center beam is freed from any constraints, continue to use laser ranging measurement. After testing, the five-point curve obtained by monitoring is qualified within the standard curve range.

[0019] The present invention also inputs the monitoring and correction laser ranging data into the control system database, and uses the correction power data of each correction cylinder for monitoring the control system database learning optimization.

[0020] Compared with the prior art, the present invention has the following benefits:

[0021] The monitoring system of the present invention is simple to operate and has intuitive data. After being powered on, the laser transmitter directly emits a visible straight-line beam, and the laser receiver transmits the data directly to the display screen through an intelligent device, and the numerical value, test results, and tolerance range are clear. The monitoring system of the present invention realizes instant and comprehensive detection, and can detect each vehicle one by one, and the data is complete and reliable. The monitoring system of the present invention saves manpower and improves efficiency. The work originally operated by 2-3 people can now be completed by only one person, and is not affected by the detection environment, measurement reference point error, operator skill level, operator responsibility, emotion, etc. during manual measurement. The detection size is intuitive and accurate. It realizes "detection at any time during correction, and correction can be made at any time during detection", and fast conversion between correction and detection. It effectively ensures the consistency of the control of the deflection of the middle beam, the warping and sagging dimensions of the traction beam; the measurement results can be monitored in real time, and the data before and after correction can be directly stored. When it is found that the data statistics before correction have a large deviation, the process adjustment can be made to the previous process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the monitoring and correction system and the qualified monitoring area of ​​the present invention;

[0023] Figure 2 It is a schematic diagram of the arrangement of the laser distance monitoring mechanism of the monitoring and correction system of the present invention.

[0024] In the figure, 1 and 5 are the setting positions of the ends of the traction beam, 3 is the longitudinal center setting position of the middle beam, 2 and 4 are the setting positions of the center plate, H is the standard curve range, L is the middle beam, G is the correction cylinder, S is the laser ranging receiver, and F is the laser transmitter. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies that are the same or similar to the present invention do not exceed the scope of protection of the present invention.

[0026] Combined with the attached pictures.

[0027] The railway freight car center beam deflection deformation monitoring and correction system of the present invention comprises a platform for placing and fixing the center beam L, and the platform is provided with a laser distance monitoring mechanism and a correction mechanism;

[0028] The laser distance monitoring mechanism includes: five laser transmitters F are detachably arranged on the monitoring middle beam L and are all connected to the control system signal, wherein one is arranged at the longitudinal center position 3 of the middle beam, one is arranged at the center plate positions 2 and 4 at both ends of the middle beam, and one is arranged at the end positions 1 and 5 of the traction beams at both ends of the middle beam; five laser distance measuring receivers S are fixedly arranged at the corresponding positions of the laser transmitters F on the platform or on the side of the platform and are all connected to the control system signal;

[0029] The correction mechanism includes: a correction cylinder G with an upward piston is arranged at the bottom of the longitudinal center of the platform, a correction cylinder G with a downward piston is respectively arranged above the center plate position at both ends of the longitudinal direction of the middle beam on the platform, and a correction cylinder G with an upward piston is respectively arranged below the end of the traction beam at both ends of the longitudinal direction of the middle beam on the platform. Each correction cylinder G is connected to the control system.

[0030] As shown in the figure, the five laser measuring points set in the longitudinal direction of the center beam L are a whole. After the dimensional data are measured, a curve with a certain bending value is formed. The value of the longitudinal center position 3 of the middle center beam is the deflection, and the values ​​of the end positions 1 and 5 of the traction beams at both ends of the longitudinal direction of the center beam are the traction beam sagging. The values ​​of the center plate positions 2 and 4 at both ends of the longitudinal direction of the center beam are set as base values. The measurement results of each of the five measuring points are compared with the standard curve range H. If the measurement curve exceeds the red curve range H, it is judged to be unqualified. If all the measurement curves are within the standard curve range H, they are judged to be qualified.

[0031] The allowable value range of the standard curve range H is based on the technical conditions of the vehicle model: for example: C70E open car: center beam deflection 8-14mm, traction beam warping and sagging: 0-8mm.

[0032] To ensure that the center beam L meets the quality requirements, when the values ​​of the five measurement points do not meet the standard requirements, it is necessary to correct the center beam L. The present invention uses five correction cylinders G to perform forced correction and finalization.

[0033] The specific steps include:

[0034] Monitoring: Real-time detection of whether the deflection of the middle beam L and the sagging of the traction beam are qualified. Process: The middle beam L is hoisted to the correction station, and the laser transmitter F is installed on the middle beam L, and the laser ranging receiver S is fixed on the platform tooling or wall; the laser transmitter F emits laser, and the laser ranging receiver S receives the laser. At the same time, the values ​​2 and 4 of the center plate positions at both ends of the middle beam L in the longitudinal direction are set as base values ​​in the monitoring and control system, and a five-point curve is formed according to the values; the five-point curve obtained by monitoring is compared with the standard curve range H. When each point of the curve is within the standard curve range H, it is judged to be qualified. When any point of the five-point curve obtained by monitoring exceeds the standard curve range H, it is judged to be unqualified.

[0035] Correction: When it is judged as unqualified, the monitoring and control system controls the correction cylinder G to correct the unqualified size position. The degree of correction is provided by the data in the big database or the module directly corrects it. The laser measurement continuously measures, tracks and displays the correction degree value in real time. When the correction value of the standard curve range H is reached, the correction is stopped, the pressure is released, and the middle beam L releases all the pressure. After the entire middle beam L is free of any constraints, the laser ranging module is continued to be used for size measurement. After detection, the five-point curve obtained by monitoring is qualified if it is within the standard curve range H.

[0036] The monitoring and correction laser ranging data are input into the control system database, and the correction power data of each correction cylinder are used for monitoring the control system learning optimization.

[0037] During the correction process, laser ranging measurement follows the detection, tracking and display of the entire process. All data are real-time data, and there is no need to draw a powder line on the entire middle beam L for dimensional measurement. At the same time, the correction effect is not affected by many factors such as the operator's skill level, work proficiency, experience, work mood, etc.; further combined with the intelligent control system, the entire correction process can continue to improve the large database.

Claims

1. A railway freight car center beam deflection monitoring and correction system, characterized by: It includes a platform for placing and fixing the middle beam, and the platform is provided with a laser distance monitoring mechanism and a correction mechanism; The laser distance monitoring mechanism includes: five laser transmitters are detachably arranged on the monitoring middle beam and are all connected to the control system signal, wherein one is arranged at the longitudinal center of the middle beam, one is arranged at each of the center plates at the longitudinal ends of the middle beam, and one is arranged at each of the ends of the traction beams at the longitudinal ends of the middle beam; five laser distance measuring receivers are fixedly arranged at the corresponding positions of the laser transmitters on the platform or on the side of the platform and are all connected to the control system signal; The correction mechanism includes: a correction cylinder with an upward piston arranged at the bottom of the longitudinal center of the platform, a correction cylinder with a downward piston arranged above the center plate position at both ends of the longitudinal direction of the middle beam on the platform, and a correction cylinder with an upward piston arranged below the end of the traction beam at both ends of the longitudinal direction of the middle beam on the platform. Each correction cylinder is connected to the control system.

2. A method for monitoring and correcting the deflection deformation of a railway freight car center beam, characterized in that: The monitoring and correction system according to claim 1 comprises the following steps: monitor: S1. The middle beam is hoisted to the correction platform station, a laser transmitter is installed on the middle beam, and a laser ranging receiver is fixed on the platform tooling or wall; S2, the laser transmitter emits laser, the receiver receives laser, and at the same time, the monitoring and control system uses the values ​​of the center plate positions at both ends of the middle beam as the base value, and forms a five-point curve according to the values; S3, comparing the five-point curve obtained by monitoring with the range of the standard curve. When each point of the curve is within the range of the standard curve, it is judged as qualified. When any point of the five-point curve obtained by monitoring exceeds the range of the standard curve, it is judged as unqualified. Correction: S4. When it is judged as unqualified, the monitoring and control system controls the oil cylinder to correct the unqualified size and position. The degree of correction is provided by the data in the big database or the module directly corrects it; S5. Laser distance measurement continuously measures, tracks and displays the correction value in real time; S6. After the correction value meets the standard curve range, stop the correction, release the pressure, and release all the pressure on the middle beam; S7. After the entire center beam is freed from any constraints, continue to use laser ranging measurement. After testing, the five-point curve obtained by monitoring is qualified within the standard curve range.

3. The method for monitoring and correcting the deflection deformation of the railway freight car center beam according to claim 2 is characterized in that: The monitoring and correction laser ranging data are input into the control system database, and the correction power data of each correction cylinder are used for monitoring the control system database learning optimization.

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