A rail grinding parameter compensation control method

Abstract

The application discloses a rail grinding parameter compensation control method, obtains the configuration angle of an abnormal grinding motor, and finds the configuration angle of other grinding motors in the grinding mode. If there is a grinding motor with the same angle configuration, the power / current compensation parameter is obtained according to the angle and power / current of the grinding motor, and the new grinding power / current value is obtained according to the power / current of the grinding motor and the power / current compensation parameter. If there is no grinding motor with the same angle configuration, the adjacent grinding motor is found in the left and right directions, and the angle compensation parameter is obtained according to the angle of the adjacent grinding motor, the angle difference of the missing grinding motor and the power / current of the grinding motor. The angle configuration value of the adjacent grinding motor and the angle compensation parameter obtain the new grinding angle value, and the angle compensation is performed on the grinding motor of the working edge or the non-working edge. The application can solve the technical problems of long operation time, low efficiency, poor grinding quality and effect of the existing grinding compensation mode.

Description

Technical Field

[0001] This application relates to the field of railway engineering machinery technology, and in particular to a method for compensating and controlling rail grinding parameters applied to rail grinding. Background Technology

[0002] Rail grinding is currently recognized worldwide as an effective means of eliminating rail defects, correcting rail profiles, improving wheel-rail contact, reducing rail contact stress and wear, and enhancing train running comfort. It is one of the most efficient and economical practices in the railway industry for optimizing rail profiles and extending service life. Rail grinding control is a key technology of rail grinding vehicles, and the choice of grinding mode directly affects the grinding quality and effect.

[0003] Currently available rail grinding machines are categorized by the number of grinding motors, with models featuring 12, 16, 20, 48, and 96 motors. Regardless of the type, all rail grinding machines must determine the appropriate grinding mode based on the rail profile to obtain the power / current and angle values ​​for all grinding motors. This information is then used to set the angle and power / current values ​​for each motor, and grinding is controlled according to these settings during operation. However, during operation, malfunctions frequently occur with one or more grinding motors, such as the grinding stones running out or not meeting operational standards, the angle adjustment system jamming or being damaged, excessive motor temperature, or motor failure. In such cases, grinding operations must be stopped. Because some grinding motors are not working, the grinding mode becomes unsuitable for the current situation. The selected grinding mode will directly impact the grinding quality and effect due to the missing grinding motors.

[0004] The industry typically addresses the above issues using the following methods:

[0005] One method involves performing a grinding operation according to a pre-set grinding mode. After this pass, the angle, power / current of the missing grinding motor is input into the available grinding motor, and the grinding operation is repeated to ensure grinding quality and effect. The main disadvantage of this method is that the operation time is longer and the operation efficiency is reduced.

[0006] Secondly, based on the missing grinding motors, the grinding patterns are reprogrammed according to the number of available grinding motors to form a new grinding pattern for the grinding operation, thus ensuring grinding quality and effect. The main disadvantage of this method is that the operation time is longer, and it requires experienced engineers to program the grinding patterns on-site. If the programming is incorrect, it will affect the grinding quality and effect. Summary of the Invention

[0007] In view of this, the purpose of this application is to provide a rail grinding parameter compensation control method to solve the technical problems of long operation time, low efficiency, and poor grinding quality and effect of existing grinding compensation methods.

[0008] To achieve the aforementioned objectives, this application specifically provides a technical implementation scheme for a rail grinding parameter compensation and control method, comprising the following steps:

[0009] S2) Obtain the configuration angle corresponding to the abnormal grinding motor, and search for the configuration angle of other grinding motors in the grinding mode;

[0010] S3) If there are grinding motors with the same angle configuration, obtain the power / current compensation parameters according to the angle and power / current of the grinding motor, obtain the new grinding power / current value according to the power / current of the grinding motor and the power / current compensation parameters, and perform power / current compensation on the grinding motors with the same angle configuration according to the new grinding power / current value.

[0011] S4) If there is no grinding motor with the same angle configuration, search for the adjacent grinding motor in the left and right directions, and obtain the angle compensation parameters based on the angle of the adjacent grinding motor, the angle difference with the missing grinding motor, and the power / current of the grinding motor.

[0012] A new grinding angle value is obtained based on the angle configuration values ​​and angle compensation parameters of adjacent grinding motors, and angle compensation is performed on the grinding motors on the working side or non-working side. At the same time, power / current compensation parameters are obtained based on the angle and power / current of adjacent grinding motors, and a new grinding power / current value is obtained based on the power / current of adjacent grinding motors and the power / current compensation parameters, and power / current compensation is performed on adjacent grinding motors according to the new grinding power / current value.

[0013] Furthermore, in steps S3) and S4), a new grinding power / current value P for grinding motors with the same angle configuration is calculated according to the following formula. n :

[0014]

[0015] Among them, P W The grinding power / current value before compensation is given by grinding motors with the same angle configuration; S is the compensation parameter of power / current obtained based on the angle, which is less than 1; n is the number of grinding motors with the same angle configuration.

[0016] Furthermore, the method also includes an abnormal motor search step S1), where when multiple grinding motors with the same angle configuration are found, only one grinding motor is used for compensation.

[0017] Furthermore, in step S3), the grinding motor at the furthest position from the abnormal grinding motor is selected for compensation.

[0018] Furthermore, in step S4), the angles of other grinding motor configurations are obtained by using a quantitative left-right cycle or a left-right cycle within the angle division segment.

[0019] Furthermore, the non-working side angle compensation control process in step S4) includes the following steps:

[0020] S21) Select the angle A corresponding to the abnormal grinding motor in the grinding mode. E The closest configuration angle A on the non-working edge L If there is no similar configuration angle on the non-working side, angle compensation control will not be performed.

[0021] S22) Configure the abnormal grinding motor with the corresponding angle A E Configuration angles A adjacent to the non-working edges L Calculate the angle difference D L =A E -A L ;

[0022] S23) Based on the angle difference D L Obtain the corresponding configuration angle A of the abnormal grinding motor E Angle compensation parameter S within the specified angle range L ;

[0023] S24) Calculate L A =A L ×(1+S L );

[0024] S25) Find the configuration angle A adjacent to the non-working edge. L The angle of the grinding motor was changed to L. A ;

[0025] S26) L A Power / current compensation control is performed as a new grinding angle value;

[0026] Steps S21) to S26) are executed sequentially to configure angle A. E equal to L A The abnormal grinding motor is compensated by using a grinding motor with a configuration angle adjacent to the non-working edge, until the angle compensation parameter S is reached. L The value equals 0, indicating exit from compensation control.

[0027] Furthermore, the working edge angle compensation control process in step S4) further includes the following steps:

[0028] S31) Select the angle A corresponding to the abnormal grinding motor in the grinding mode. E The closest configuration angle A on the working side R If there is no similar angle configuration on the working side, angle compensation control will not be performed;

[0029] S32) Configure the abnormal grinding motor with the corresponding angle A E Configuration angles A adjacent to the working edge R Calculate its angular difference D R =A R -A E ;

[0030] S33) According to angle D R Obtain the corresponding configuration angle A of the abnormal grinding motor. E Angle compensation parameter S within the specified angle range R ;

[0031] S34) Calculate R A =A R ×(1-S R );

[0032] S35) Find the configuration angle A adjacent to the working edge. R The angle of the grinding motor was changed to R. A ;

[0033] S36) R A Power / current compensation control is performed as a new grinding angle value;

[0034] Steps S31) to S36) are executed sequentially to configure angle A. E Equal to R A The abnormal grinding motor is compensated by using a grinding motor with a configuration angle adjacent to the working edge until the angle compensation parameter S is reached. R The value equals 0, indicating exit from compensation control.

[0035] Furthermore, within each segment range matched by the required compensation grinding motor angle, power / current compensation parameters are generated based on power / current, locomotive speed, grinding motor cutting amount, and cutting area.

[0036] Furthermore, based on the required angle range of the grinding motor, the angle error value, and the grinding power, angle compensation parameters are derived, and angle compensation is performed on the working or non-working side of the grinding motor. If the missing angle range of the abnormal grinding motor is less than the minimum angle range, its angle compensation parameter is 0.

[0037] Furthermore, in step S4), when the quantitative left-right cycle is used to obtain the configuration angles of other grinding motors, the number of times n is used to obtain the configuration angles of other grinding motors can be set. If only the adjacent nth grinding motor is compensated, the angle compensation parameter for the (n+1)th adjacent grinding motor is automatically set to 0.

[0038] Furthermore, in step S4), when the angle of other grinding motors is obtained by left and right looping within the angle division segment, the angle compensation parameter acquisition unit can set the angle range of other grinding motor configurations. If the configuration angle of an adjacent grinding motor exceeds the set range, its angle compensation parameter is automatically set to 0.

[0039] By implementing the technical solution of the rail grinding parameter compensation and control method provided in this application, the following beneficial effects are achieved:

[0040] (1) The rail grinding parameter compensation control method of this application, based on the grinding mode that has been called, statistically analyzes the angle and power / current of the missing grinding motor, and automatically adjusts the angle or power / current of the working grinding motor according to the angle distribution of the rail profile, so as to ensure both grinding quality and effect and grinding operation efficiency.

[0041] (2) The rail grinding parameter compensation control method of this application uses data models and experience to generate a series of parameters to compensate and control the existing grinding mode, thereby generating a new grinding mode. It no longer requires hardware support and the participation of experienced engineers, which not only further saves time and labor costs, but also ensures grinding operation efficiency and grinding quality. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the cross-sectional structure of the working side and the non-working side of the rail;

[0044] Figure 2 This is a schematic diagram illustrating the structural principle of the rail grinding parameter compensation and control method applied to rail grinding in this application;

[0045] Figure 3 This is a schematic diagram of the structural principle of the rail grinding parameter compensation and control method applied to rail grinding from another perspective;

[0046] Figure 4 This is a system structure block diagram of a specific embodiment of the rail grinding parameter compensation control device and system on which the method of this application is based;

[0047] Figure 5 This is a schematic flowchart of a specific embodiment of the rail grinding parameter compensation control method of this application;

[0048] In the diagram: 1-Grinding motor status detection unit, 2-Abnormal motor detection unit, 3-Power / current compensation parameter acquisition unit, 4-Angle compensation parameter acquisition unit, 5-Power / current compensation unit, 6-Working side motor angle compensation unit, 7-Non-working side motor angle compensation unit, 8-Motor power / current adjustment mechanism, 9-Motor deflection actuator, 10-Grinding wheel, 20-Rail. Detailed Implementation

[0049] Grinding mode: refers to a data set consisting of multiple grinding motor power / current values, angle values, and grinding mode serial numbers.

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] As attached Figure 1 To be continued Figure 5 As shown, a specific embodiment of the rail grinding parameter compensation control method of this application is given. The application will be further described below with reference to the accompanying drawings and specific embodiments.

[0052] The rail grinding parameter compensation control method described in this application is specifically applied to the grinding mode compensation control when some grinding motors are missing during rail grinding. This provides a more accurate grinding mode for rail grinding operations and delivers a more stable and expected grinding repair effect to the track. The angle configuration in the grinding mode is generally a continuous arrangement of one or two angle segments, with angles decreasing in size or increasing in size, or interspersed at certain angle intervals for heat dissipation; discrete angle configurations are rare. Based on the non-discrete angle configuration characteristic, if one or more motors malfunction, the other normal grinding motors can be automatically modified according to the rail angle distribution using the compensation control method to achieve the expected grinding effect, as shown in the attached figure. Figure 2 and appendix Figure 3 As shown.

[0053] Example 1

[0054] As attached Figure 4 As shown, an embodiment of a rail grinding parameter compensation control device based on the method of this application specifically includes: a power / current compensation parameter acquisition unit 3, an angle compensation parameter acquisition unit 4, a power / current compensation unit 5, a working side motor angle compensation unit 6, and a non-working side motor angle compensation unit 7. The power / current compensation parameter acquisition unit 3 acquires the configuration angle corresponding to the abnormal grinding motor and searches for the configuration angles of other grinding motors in the grinding mode. If a grinding motor with the same angle configuration is found, the power / current compensation parameter is output to the power / current compensation unit 5. The power / current compensation unit 5 obtains a new grinding power / current value based on the grinding power / current of the grinding motor and the power / current compensation parameter. The angle compensation parameter acquisition unit 4 acquires the configuration angle corresponding to the abnormal grinding motor and searches for the configuration angles of other grinding motors in the grinding mode. If no grinding motor with the same angle configuration is found, the power / current compensation parameter is output to the power / current compensation unit 5. The angle compensation parameter acquisition unit 4 simultaneously outputs the angle compensation parameter to either the working side motor angle compensation unit 6 or the non-working side motor angle compensation unit 7. The working side motor angle compensation unit 6 or the non-working side motor angle compensation unit 7 obtains a new grinding angle value based on the angle configuration value and angle compensation parameters of other grinding motors. The power / current compensation unit 5 obtains a new grinding power / current value based on the grinding power / current and power / current compensation parameters of the grinding motor.

[0055] Among them, the angle compensation parameters are as shown in the appendix. Figure 1 The diagram showing the angle distribution of the rail profile, the different models of rail 20, the size of the grinding wheel 10, and the contact area between the grinding wheel 10 and the rail 20 are used to match data models to define multiple segments, such as -60° to -15°, -15° to 15°, and 15° to 60°. Within each segment, the missing angle range of the abnormal grinding motor is further divided according to the angle distribution density of different models of rail 20, such as 2°, 5°, and 10° ranges. Then, combining the rail grinding data model and experience, angle compensation parameters are derived for different angle ranges (angle compensation parameters can be derived based on the angle range, angle error value, and grinding power; specifically, an experience table is first formed based on historical operation data, and then the angle compensation parameters are derived using a lookup table method, or they can be calculated using a mathematical model). If the missing angle range of the abnormal grinding motor is less than the minimum angle range, its angle compensation parameter is 0.

[0056] Example 1: Divide the angle of the 20mm rail into three segments: -60° to -15°, -15° to 15°, and 15° to 60°. Within the -60° to -15° segment, further divide it into three levels: 5°, 10°, and 20°, with angle compensation parameters of 0.02, 0.05, and 0.1 for each level. Within the -15° to 15° segment, divide it into three levels: 1°, 2°, and 5°, with angle compensation parameters of 0.05, 0.1, and 0.2 for each level. Within the 15° to 60° segment, divide it into three levels: 5°, 10°, and 20°, with angle compensation parameters of 0.02, 0.05, and 0.1 for each level. For example, if a grinding motor with an angle of 10° malfunctions, and the angle difference between it and the adjacent grinding motor on the non-working side is 3°, then the angle compensation parameter is set to 0.1; if the difference is 1°, then the angle compensation parameter is set to 0. It is important to note that the parameter selections here are for illustrative purposes only and are not actual application data. The segmentation and actual parameters need to be derived from the mathematical model.

[0057] For the power / current compensation parameters, within each segment matched by the angle, the power / current compensation parameters are generated based on the mathematical model of power / current, locomotive speed, grinding motor cutting amount and cutting area (or the aforementioned empirical table can be formed based on historical operation data, and then the power / current compensation parameters can be obtained by using a lookup table).

[0058] Example 2: The power of the grinding motor is divided into three levels: 0-8 kW, 8-15 kW, and 15-22 kW. The grinding speed is divided into three levels: 3-8 km / h, 8-14 km / h, and 14-20 km / h. Different power / current parameters are then matched based on the angle and a data model. For example, if the grinding motor angle is 20°, the power is 15 kW, and the constant grinding speed is set to 12 km / h, the power / current compensation parameter is matched to 0.1 based on the mathematical model. It is important to note that the parameter selections here are only illustrative examples and not actual application data. The segmentation and actual parameters need to be derived from the mathematical model.

[0059] The rail grinding parameter compensation control device also includes an abnormal motor detection unit 2, which is connected to the power / current compensation parameter acquisition unit 3 and the angle compensation parameter acquisition unit 4, respectively. When the abnormal motor detection unit 2 detects multiple grinding motors with the same angle configuration, the power / current compensation parameter acquisition unit 3 uses only one grinding motor for compensation. The power / current compensation parameter acquisition unit 3 selects the grinding motor at the position furthest from the abnormal grinding motor for compensation.

[0060] The abnormal motor detection unit 2 acquires data from the grinding motor status detection unit 1. The grinding motor status is fed back by hardware and then confirmed manually. The grinding mode sets the power / current and angle of all grinding motors. Abnormal grinding motors are set by the operator. The software searches the entire grinding motor settings and automatically identifies the abnormal grinding motor based on its status. Some faults (such as short circuit, open circuit, overpower, temperature, start / stop, and grinding wheel thickness) can be found on the software interface, while some mechanical faults (such as grinding motor jamming, grinding wheel thickness, and other mechanical issues) may require visual inspection by the operator.

[0061] The angle compensation parameter acquisition unit 4 acquires the angles of other grinding motor configurations by using a quantitative left-right cycle or a left-right cycle within an angle division segment. For example, in a densely distributed angle segment, only one grinding motor (left or right) can be selected for compensation control, or the number of cycles can be specified.

[0062] When using a quantitative left-right cycle to obtain the configuration angles of other grinding motors, the number of times the angle compensation parameter acquisition unit 4 acquires the configuration angles of other grinding motors, n, can be set. If compensation is only performed on the adjacent nth grinding motor, the angle compensation parameter for the (n+1)th adjacent grinding motor is automatically set to 0.

[0063] When the angle of other grinding motors is obtained by using a left-right loop within the angle division segment, the angle compensation parameter acquisition unit 4 can set the angle range of other grinding motor configurations. If the configuration angle of an adjacent grinding motor exceeds the set range, its angle compensation parameter is automatically set to 0.

[0064] The power / current compensation unit 5 generates power / current compensation parameters based on power / current, locomotive speed, grinding motor cutting amount, and cutting area within each segment range matched to the required grinding motor angle.

[0065] The working side motor angle compensation unit 6 and the non-working side motor angle compensation unit 7 determine the angle compensation parameters based on the angle range, angle error value, and grinding power of the grinding motor as needed. If the missing angle range of the abnormal grinding motor is less than the minimum angle range, its angle compensation parameter is 0.

[0066] The system obtains the configuration angle corresponding to the abnormal grinding motor, searches for other grinding motor configuration angles in the grinding mode, and if there is a grinding motor with the same angle configuration, the power / current compensation unit 5 further calculates a new grinding power value P for the grinding motor with the same angle configuration according to the following formula. n Grinding current value I n :

[0067]

[0068] Among them, P W The grinding power value before compensation for grinding motors with the same angle configuration. W This represents the grinding current value before compensation for grinding motors with the same angle configuration. S is the power / current compensation parameter obtained based on the angle, and S is less than 1. n is the number of grinding motors with the same angle configuration.

[0069] Angle compensation parameter acquisition unit 4 selects the configured angle A corresponding to the abnormal grinding motor in the grinding mode. E The closest configuration angle A on the non-working edge L If there is no similar configuration angle on the non-working side, angle compensation control will not be performed. The angle compensation parameter acquisition unit 4 will obtain the configuration angle A corresponding to the abnormal grinding motor. E Configuration angles A adjacent to the non-working edges L Calculate the angle difference D L =A E -A L And based on the angle difference D L Obtain the corresponding configuration angle A of the abnormal grinding motor E Angle compensation parameter S within the specified angle range L The non-working side motor angle compensation unit 7 calculates L. A =A L ×(1+S L ), and find the configuration angle A adjacent to the non-working edge. L The angle of the grinding motor was changed to L. A Power / current compensation control is performed based on the new grinding angle value. This compensation control is executed cyclically, using the grinding motor with the configured angle adjacent to the non-working edge to compensate for the abnormal grinding motor, until the angle compensation parameter S is reached. L The value equals 0, indicating exit from compensation control.

[0070] Angle compensation parameter acquisition unit 4 selects the configured angle A corresponding to the abnormal grinding motor in the grinding mode. E The closest configuration angle A on the working side R If there is no similar configuration angle on the working side, angle compensation control will not be performed. The angle compensation parameter acquisition unit 4 will obtain the configuration angle A corresponding to the abnormal grinding motor. E Configuration angles A adjacent to the working edge R Calculate its angular difference D R =A R -A E And according to angle D R Obtain the corresponding configuration angle A of the abnormal grinding motor. E Angle compensation parameter S within the specified angle range RThe working side motor angle compensation unit 6 calculates R. A =A R ×(1-S R ), find the configuration angle A adjacent to the working edge R The angle of the grinding motor was changed to R. A Power / current compensation control is performed based on the new grinding angle value. This compensation control is executed cyclically, using the grinding motor with the configured angle adjacent to the working edge to compensate for abnormal grinding motor operation, until the angle compensation parameter S is reached. R The value equals 0, indicating exit from compensation control.

[0071] In existing technologies, the establishment of grinding patterns must be based on the collected rail profile and the total number of grinding motors on the grinding vehicle, requiring specialized testing equipment and data models. If a grinding motor malfunctions, re-establishing the grinding pattern is time-consuming and labor-intensive, reducing grinding efficiency within a limited timeframe. Re-establishing the grinding pattern manually without hardware support requires experienced engineers to manually modify it, which is also time-consuming and labor-intensive, reducing efficiency and increasing the risk of errors and unnecessary losses. Therefore, the rail grinding parameter compensation control device described in this embodiment addresses this situation by using a series of parameters generated from data models and experience to compensate for and control existing grinding patterns, thereby generating new grinding patterns. This eliminates the need for hardware support and experienced engineers, saving time and manpower while ensuring both grinding efficiency and quality. Based on the already activated grinding modes, the missing grinding motor angles and power / currents are statistically analyzed. According to the angle distribution of the rail profile, the working grinding motors are automatically adjusted in terms of angle or power / current using a compensation control method. This improves grinding efficiency while ensuring grinding quality and effect.

[0072] Example 2

[0073] As attached Figure 4 As shown, an embodiment of a rail grinding parameter compensation control system based on the method of this application specifically includes: a grinding motor status detection unit 1, a motor power / current adjustment mechanism 8, a motor deflection actuator 9, and the device as described in Embodiment 1. The abnormal motor detection unit 2 uses the grinding motor status detection unit 1 to locate grinding motors exhibiting abnormal operation. The power / current compensation unit 5 outputs a new grinding power / current value to the motor power / current adjustment mechanism 8, and the working side motor angle compensation unit 6 or the non-working side motor angle compensation unit 7 outputs a new grinding angle value to the motor deflection actuator 9.

[0074] Example 3

[0075] As attached Figure 5As shown, an embodiment of the rail grinding parameter compensation control method of this application specifically includes the following steps:

[0076] S2) Obtain the configuration angle corresponding to the abnormal grinding motor, and search for the configuration angle of other grinding motors in the grinding mode;

[0077] S3) If there are grinding motors with the same angle configuration, obtain the power / current compensation parameters according to the angle and power / current of the grinding motor, obtain the new grinding power / current value according to the power / current of the grinding motor and the power / current compensation parameters, and perform power / current compensation on the grinding motors with the same angle configuration according to the new grinding power / current value.

[0078] S4) If there is no grinding motor with the same angle configuration, search for the adjacent grinding motor in the left and right directions, and obtain the angle compensation parameters based on the angle of the adjacent grinding motor, the angle difference with the missing grinding motor, and the power / current of the grinding motor.

[0079] A new grinding angle value is obtained based on the angle configuration values ​​and angle compensation parameters of adjacent grinding motors, and angle compensation is performed on the grinding motors on the working side or non-working side. At the same time, power / current compensation parameters are obtained based on the angle and power / current of adjacent grinding motors, and a new grinding power / current value is obtained based on the power / current of adjacent grinding motors and the power / current compensation parameters, and power / current compensation is performed on adjacent grinding motors according to the new grinding power / current value.

[0080] In steps S3) and S4), the new grinding power P of the grinding motors with the same angle configuration is calculated according to the following formula. n Grinding current value I n :

[0081]

[0082] Among them, P W The grinding power value before compensation for grinding motors with the same angle configuration. W This represents the grinding current value before compensation for grinding motors with the same angle configuration. S is the power / current compensation parameter obtained based on the angle, and S is less than 1. n is the number of grinding motors with the same angle configuration.

[0083] In the power / current compensation control method described in Example 3, an abnormal motor search step S1 is also included. When multiple grinding motors with the same angle configuration are found, only one grinding motor can be used for compensation, i.e., n=1. The grinding motor for compensation can be the grinding motor at the farthest position from the abnormal grinding motor.

[0084] In step S4), the angles of other grinding motors are obtained by either quantitative left-right cycling or left-right cycling within the angle division segment. When quantitative left-right cycling is used to obtain the angles of other grinding motors, the number of times n is used to obtain these angles can be set. If compensation is only performed on the adjacent nth grinding motor, the angle compensation parameter for the (n+1)th adjacent grinding motor is automatically set to 0. In step S4), when the angles of other grinding motors are obtained by left-right cycling within the angle division segment, the angle compensation parameter acquisition unit 4 can set the range of angles it can obtain. If the angle of an adjacent grinding motor exceeds the set range, its angle compensation parameter is automatically set to 0.

[0085] Within each segment range matched to the required compensation for the grinding motor angle, power / current compensation parameters are generated based on power / current, locomotive speed, grinding motor cutting amount, and cutting area.

[0086] Angle compensation parameters are derived based on the required angle range, angle error value, and grinding power of the grinding motor, and then used to compensate for the angle of the grinding motor on the working or non-working side. If the missing angle range of the abnormal grinding motor is less than the minimum angle range, its angle compensation parameter is 0.

[0087] Example 3: A typical embodiment of the rail grinding parameter compensation control method of this application specifically includes the following steps:

[0088] S11) Locate the missing grinding motor;

[0089] S12) Based on the angle value corresponding to the missing grinding motor, find out if there are other grinding motors with the same angle;

[0090] S13) If there are grinding motors with the same angle, obtain the power / current compensation parameters according to the angle and power / current of the grinding motor.

[0091] S14) Power / current compensation is performed using a grinding motor at the same angle;

[0092] S15) If there is no grinding motor with the same angle, then look for the first adjacent grinding motor in the left and right directions.

[0093] S16) Based on the angle of the adjacent first grinding motor, the angle difference between the first and the missing grinding motor, and relevant factors such as motor power / current, obtain the angle compensation parameters and power / current compensation parameters. If the angle compensation parameter is 0, the compensation ends.

[0094] S17) Compensate the angle and power / current of the adjacent first grinding motor to obtain a new angle and power / current;

[0095] S18) Find the second adjacent grinding motor. Based on the angle of the second adjacent grinding motor, the angle difference between the second adjacent grinding motor and the first adjacent grinding motor, and related factors such as motor power / current, obtain the angle compensation parameters and power / current compensation parameters. If the angle compensation parameter is 0, the compensation ends.

[0096] S19) Compensate the angle and power / current of the adjacent second grinding motor to obtain a new angle and power / current;

[0097] S110) Find the third adjacent grinding motor. Based on the angle of the second adjacent grinding motor, the angle difference between the second adjacent grinding motor and the first adjacent grinding motor, and other relevant factors such as motor power, obtain the angle compensation parameters and power / current compensation parameters. If the angle compensation parameter is 0, the compensation ends.

[0098] S111) The angle and power / current of the adjacent third grinding motor are compensated to obtain a new angle and power / current;

[0099] S112)..... Continue this process until the angle and power / current of the adjacent nth grinding motor are compensated and a new angle and power / current are obtained.

[0100] The number of times 'n' is searched for adjacent grinding motors can be set. If set to 1, compensation is only performed on the first adjacent grinding motor, and the angle compensation parameter is automatically set to 0 for the second adjacent grinding motor. An angle range can also be set; if the angle of an adjacent grinding motor exceeds the range, the angle compensation parameter is automatically set to 0.

[0101] For angle compensation control, in step S4), the configuration angle A corresponding to the abnormal grinding motor is first obtained. E In the grinding mode, search for the configuration angle of other grinding motors. If no grinding motor with the same configuration angle is found, then perform the following compensation control:

[0102] S21) When performing non-working side angle compensation control (as shown in the appendix) Figure 1 As shown, the working edge and non-working edge are marked. The working edge refers to the inner side of the rail, i.e., the right side of the left rail and the left side of the right rail; the non-working edge refers to the outer side of the rail, i.e., the left side of the left rail and the right side of the right rail. The grinding angle range of a typical grinding machine is -35° to 50° (some special devices can grind angles between -25° and 70°). In this case, select the non-working edge A in the grinding mode. E closest configuration angle A L If there is no similar angle configuration on the non-working side, angle compensation control will not be performed.

[0103] S22) Based on non-working edge A EConfiguration angles A adjacent to the non-working edges L Calculate the difference in angles D L :

[0104] D L =A E -A L ;

[0105] S23) Based on the angle difference D L Get non-working edge A E Angle compensation parameter S of the angle section L .

[0106] S24) Perform the following calculations:

[0107] L A =A L ×(1+S L )

[0108] S25) will find the configuration angle A L The angle of the grinding motor was changed to L. A .

[0109] S26) Regarding the configuration angle L A The grinding motor performs power / current compensation control.

[0110] S27) Repeat steps S21) to S26) sequentially to make non-working edge A E The value equals the configuration angle L. A The abnormal grinding motor is compensated by using a grinding motor with a configuration angle adjacent to the non-working edge, until the angle compensation parameter S is reached. L The value equals 0, indicating exit from compensation control.

[0111] Example 4: Assume the angles of the faulty grinding motors are 10° (motor #10), 9° (motor #11), 9° (motor #12), and 8° (motor #13), and all have a power of 15kW. The compensation parameters are processed according to Examples 1 and 2.

[0112] The faulty grinding motor #10 has an angle of 10°, and the adjacent grinding motor #11 has an angle of 9° (when multiple grinding motors have the same angle, only one is used for compensation). The angle difference between the faulty motor and the faulty motor is 1°. Taking the angle compensation parameter as 0.05 and the power compensation parameter as 0.1, the angle of grinding motor #11 is modified to 9*(1+0.05) = 9.45°, and the power is modified to 15*(1+0.1) = 16.5kW. If the cycle count is set to 1, the compensation ends. If it is not 1, the search continues for the next adjacent grinding motor. When grinding motor #12 with a deflection angle of 9° is found, the difference from 9.45° is 0.45°. Since this is less than 1°, the compensation parameter is set to 0, and the compensation ends.

[0113] Example 5: Assume the angle of the faulty grinding motor 10 is 10°, the angle of grinding motor 11 is 9°, the angle of grinding motor 12 is 8°, and the angle of grinding motor 13 is 7°, with a power of 15kW for all motors. The compensation parameters are processed according to Examples 1 and 2.

[0114] The faulty grinding motor #10 has an angle of 10°, and the adjacent grinding motor #11 has an angle of 9°, differing from the faulty motor by 1°. Taking the angle compensation parameter as 0.05 and the power compensation parameter as 0.1, the angle of grinding motor #11 is modified to 9*(1+0.05) = 9.45°, and the power is modified to 15*(1+0.1) = 16.5kW. If the cycle count is set to 1, the compensation ends. If it is not 1, the search continues for the next adjacent angle grinding motor. Grinding motor #12 with an angle of 8° is found, which differs from 9.45° by 1.45°. Since this difference is greater than 1°, the angle compensation parameter is set to 0.05. Therefore, the angle of grinding motor #12 is modified to 8*(1+0.05) = 8.4°, and the power is modified to 15*(1+0.1) = 16.5kW. Continue searching for the next adjacent angle grinding motor. Grinding motor #13 (7°) is found. Its angle differs from 8.4° by 1.4°, which is greater than 1°. Therefore, the angle compensation parameter is 0.05. The angle of grinding motor #13 is then modified to 7*(1+0.05) = 7.35°, and the power is modified to 15*(1+0.1) = 16.5kW. If the loop count is defined as 3, the compensation ends. Otherwise, the search continues until the angle compensation parameter is 0 or an angle range is specified (e.g., -15° to 15°; if angles <-15° have been found, the compensation ends).

[0115] Step S4) further includes the following process:

[0116] S31) When performing working edge angle compensation control, select the mode that matches working edge A in the grinding mode. E closest configuration angle A RIf there is no similar angle configuration on the working side, angle compensation control will not be performed.

[0117] S32) According to working edge A E Configuration angles A adjacent to the working edge R Calculate the difference in their angles:

[0118] D R =A R -A E

[0119] S33) Based on the angle difference D R Obtain its working edge A E Angle compensation parameter S within the specified angle range R .

[0120] S34) Perform the following calculations:

[0121] R A =A R ×(1-S R )

[0122] S35) Find the configuration angle A R The angle of the grinding motor was changed to R. A .

[0123] S36) Angle configuration A R The grinding motor performs power / current compensation control.

[0124] Steps S31) to S36) are executed sequentially to make working edge A E The value equals the configuration angle A. R The abnormal grinding motor is compensated by using a grinding motor with a configuration angle adjacent to the working edge until the angle compensation parameter S is reached. R The value equals 0, indicating exit from compensation control.

[0125] Example 6: Assume the angles of the faulty grinding motors are 10° (motor #10), 11° (motor #11), 12° (motor #12), and 12° (motor #13), and all have a power of 15kW. The compensation parameters are processed according to Examples 1 and 2.

[0126] The faulty grinding motor #10 has an angle of 10°, and the adjacent grinding motor #11 has an angle of 11° (when multiple grinding motors have the same angle, only one is used for compensation). The angle difference between the faulty motor and the faulty motor is 1°. Taking the angle compensation parameter as 0.05 and the power compensation parameter as 0.1, the angle of grinding motor #11 is modified to 11*(1-0.05) = 10.45°, and the power is modified to 15*(1+0.1) = 16.5kW. If the cycle count is 1, the compensation ends. If the cycle count is not 1, the search continues for the next adjacent grinding motor. Grinding motor #12 with an angle of 11° is found. Its angle difference from 10.45° is 0.55°, which is less than 1°, so the compensation parameter is 0, and the compensation ends.

[0127] Example 7: Assume the angles of the faulty grinding motors are 10° (motor #10), 11° (motor #11), 12° (motor #12), and 13° (motor #13), and all have a power of 15kW. The compensation parameters are processed according to Examples 1 and 2.

[0128] The faulty grinding motor #10 has an angle of 10°, and the adjacent grinding motor #11 has an angle of 11°, differing from the faulty motor by 1°. Taking the angle compensation parameter as 0.05 and the power compensation parameter as 0.1, the angle of grinding motor #11 is modified to 11*(1-0.05) = 10.45°, and the power is modified to 15*(1+0.1) = 16.5kW. If the cycle count is set to 1, the compensation ends. If not, the search continues for the next adjacent grinding motor. Grinding motor #12 with an angle of 12° is found, which differs from 10.45° by 1.55°. Since this difference is greater than 1°, the compensation parameter is set to 0.05. Therefore, the angle of grinding motor #12 is modified to 12*(1-0.05) = 11.4°, and the power is modified to 15*(1+0.1) = 16.5kW. Continue searching for the next adjacent grinding motor. Grinding motor #13 is found at 13°. Its angle differs from 11.4° by 1.6°, which is greater than 1°. Therefore, the compensation parameter is 0.05. The angle of grinding motor #13 is then modified to 13*(1-0.05) = 12.35°, and the power is modified to 15*(1+0.1) = 16.5kW. If the cycle count is defined as 3, the compensation ends. Otherwise, the search continues until the compensation parameter is 0 or an angle range is specified (e.g., -15° to 15°; if angles >15° have been found, the compensation ends).

[0129] Example 8: There are 10 grinding motors, numbered from 1 to 10. The angles are arranged in sequence, ranging from 0 to 18°, with each motor at 2° intervals. For example, grinding motor 1 is 0°, grinding motor 2 is 2°, grinding motor 3 is 4°, and so on.

[0130]

[0131]

[0132] In this context, T indicates normal operation and F indicates abnormal operation. Grinding motor #4 is not participating in the operation because the grinding wheel (i.e., the grinding stone) is exhausted, so it is set to F.

[0133] The missing grinding motor #4 was located at 6°. Simultaneously, the grinding motor was searched for to the left and right.

[0134] For the left side of the rail: the angles of adjacent grinding motors are 4° (grinding motor 3), 2° (grinding motor 2), and 0° (grinding motor 1) in sequence. Compensate these three grinding motors according to the method. If the angle range is specified as -15 to 15°, then only grinding motors 1, 2, and 3 will be compensated. If the specified number of compensations is 2, then only grinding motors 2 and 3 will be compensated.

[0135] For the right side of the rail: the angles of adjacent grinding motors are sequentially 8° (grinding motor 5), 10° (grinding motor 6), 12° (grinding motor 7), 14° (grinding motor 8), 16° (grinding motor 9), and 18° (grinding motor 10). Compensation is applied to these six grinding motors using this method. If the angle range is specified as -15° to 15°, then only grinding motors 5, 6, 7, and 8 are compensated. If the specified number of compensation cycles is 2, then only grinding motors 5 and 6 are compensated.

[0136] In the description of this application, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly set on the other element or indirectly set on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0137] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0138] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0139] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0140] By implementing the technical solution of the rail grinding parameter compensation control method described in the specific embodiments of this application, the following technical effects can be achieved:

[0141] (1) The rail grinding parameter compensation control method described in the specific embodiments of this application, based on the grinding mode that has been called, statistically analyzes the angle and power / current of the missing grinding motor, and automatically adjusts the angle or power / current of the working grinding motor according to the angle distribution of the rail profile, so as to ensure both grinding quality and effect and grinding operation efficiency.

[0142] (2) The rail grinding parameter compensation control method described in the specific embodiments of this application uses data models and experience to generate a series of parameters to compensate and control the existing grinding mode, thereby generating a new grinding mode. It no longer requires hardware support and the participation of experienced engineers, which not only further saves time and labor costs, but also ensures grinding operation efficiency and grinding quality.

[0143] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0144] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has been disclosed above with reference to preferred embodiments, it is not intended to limit this application. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this application using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the spirit and technical essence of this application. Therefore, any simple modifications, equivalent substitutions, equivalent changes, and modifications made to the above embodiments based on the technical essence of this application without departing from the content of the technical solutions of this application shall still fall within the protection scope of the technical solutions of this application.

Claims

1. A method for compensating and controlling rail grinding parameters, characterized in that, Includes the following steps: S2) Obtain the configuration angle corresponding to the abnormal grinding motor, and search for the configuration angle of other grinding motors in the grinding mode; S3) If there are grinding motors with the same angle configuration, obtain the power / current compensation parameters according to the angle and power / current of the grinding motor, obtain the new grinding power / current value according to the power / current of the grinding motor and the power / current compensation parameters, and perform power / current compensation on the grinding motors with the same angle configuration according to the new grinding power / current value. S4) If there is no grinding motor with the same angle configuration, search for adjacent grinding motors in the left and right directions, and obtain angle compensation parameters based on the angle of the adjacent grinding motors, the angle difference with the missing grinding motor, and the power / current of the grinding motors; obtain a new grinding angle value based on the angle configuration value of the adjacent grinding motors and the angle compensation parameters, and perform angle compensation on the grinding motors on the working side or non-working side; at the same time, obtain power / current compensation parameters based on the angle and power / current of the adjacent grinding motors, obtain a new grinding power / current value based on the power / current of the adjacent grinding motors and the power / current compensation parameters, and perform power / current compensation on the adjacent grinding motors according to the new grinding power / current value.

2. The rail grinding parameter compensation control method according to claim 1, characterized in that, In steps S3) and S4), a new grinding power / current value P for grinding motors with the same angle configuration is calculated according to the following formula. n : Among them, P W The grinding power / current value before compensation is given by grinding motors with the same angle configuration; S is the compensation parameter of power / current obtained based on the angle, which is less than 1; n is the number of grinding motors with the same angle configuration.

3. The rail grinding parameter compensation control method according to claim 1 or 2, characterized in that: The method also includes an abnormal motor search step S1), in which when multiple grinding motors with the same angle configuration are found, only one grinding motor is used for compensation.

4. The rail grinding parameter compensation control method according to claim 3, characterized in that: In step S3), the grinding motor at the furthest position from the abnormal grinding motor is selected for compensation.

5. The rail grinding parameter compensation control method according to claim 1, 2 or 4, characterized in that: In step S4), the angles of other grinding motor configurations are obtained by using a quantitative left-right cycle or a left-right cycle within an angle division segment.

6. The rail grinding parameter compensation control method according to claim 5, characterized in that, The non-working side angle compensation control process in step S4) further includes the following steps: S21) Select the angle A corresponding to the abnormal grinding motor in the grinding mode. E The closest configuration angle A on the non-working edge L If there is no similar configuration angle on the non-working side, angle compensation control will not be performed. S22) Configure the abnormal grinding motor with the corresponding angle A E Configuration angles A adjacent to the non-working edges L Calculate the angle difference D L =A E -A L ; S23) Based on the angle difference D L Obtain the corresponding configuration angle A of the abnormal grinding motor E Angle compensation parameter S within the specified angle range L ; S24) Calculate L A =A L ×(1+S L ); S25) Find the configuration angle A adjacent to the non-working edge. L The angle of the grinding motor was changed to L. A ; S26) L A Power / current compensation control is performed as a new grinding angle value; Steps S21) to S26) are executed sequentially to configure angle A. E equal to L A The abnormal grinding motor is compensated by using a grinding motor with a configuration angle adjacent to the non-working edge, until the angle compensation parameter S is reached. L The value equals 0, indicating exit from compensation control.

7. The rail grinding parameter compensation control method according to claim 5, characterized in that, The working edge angle compensation control process in step S4) further includes the following steps: S31) Select the angle A corresponding to the abnormal grinding motor in the grinding mode. E The closest configuration angle A on the working side R If there is no similar angle configuration on the working side, angle compensation control will not be performed; S32) Configure the abnormal grinding motor with the corresponding angle A E Configuration angles A adjacent to the working edge R Calculate its angular difference D R =A R -A E ; S33) According to angle D R Obtain the corresponding configuration angle A of the abnormal grinding motor. E Angle compensation parameter S within the specified angle range R ; S34) Calculate R A =A R ×(1-S R ); S35) Find the configuration angle A adjacent to the working edge. R The angle of the grinding motor was changed to R. A ; S36) R A Power / current compensation control is performed as a new grinding angle value; Steps S31) to S36) are executed sequentially to configure angle A. E Equal to R A The abnormal grinding motor is compensated by using a grinding motor with a configuration angle adjacent to the working edge until the angle compensation parameter S is reached. R The value equals 0, indicating exit from compensation control.

8. The rail grinding parameter compensation control method according to claim 6 or 7, characterized in that: Within each segment range matched to the required compensation for the grinding motor angle, power / current compensation parameters are generated based on power / current, locomotive speed, grinding motor cutting amount, and cutting area.

9. The rail grinding parameter compensation control method according to claim 8, characterized in that: Angle compensation parameters are derived based on the angle range, angle error value, and grinding power of the grinding motor required for compensation, and angle compensation is performed on the working or non-working side of the grinding motor. If the missing angle range of the abnormal grinding motor is less than the minimum angle range, its angle compensation parameter is 0.

10. The rail grinding parameter compensation control method according to claim 6, 7 or 9, characterized in that: In step S4), when the quantitative left and right loop is used to obtain the configuration angle of other grinding motors, the number of times n to obtain the configuration angle of other grinding motors can be set; if only the adjacent nth grinding motor is compensated, the angle compensation parameter of the (n+1)th adjacent grinding motor is automatically set to 0.

11. The rail grinding parameter compensation control method according to claim 6, 7 or 9, characterized in that: In step S4), when the angle of other grinding motor configurations is obtained by using a left-right loop within the angle division segment, the angle compensation parameter acquisition unit (4) can set the angle range of other grinding motor configurations. If the configuration angle of an adjacent grinding motor exceeds the set range, its angle compensation parameter is automatically set to 0.

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