Precision speed reduction solid difference analysis method and system

Abstract

The present invention discloses a precision speed reduction fixed difference analysis method and system, which relate to the technical field of speed reducers, and include a fixed axle configuration module, a fixed difference test module, a transmission acquisition module, a parameter analysis module, a host computer and a motor protection module; the fixed axle configuration module is used for test personnel to set the test configuration parameters of the fixed axle in the speed reducer; after the setting is successful, the speed reducer is subjected to a transmission test through the fixed difference test module; the transmission acquisition module is used to collect the transmission information of the speed reducer in real time through a preset monitoring device, and generate a transmission parameter report; the parameter analysis module is used to draw a corresponding angle-torque performance curve according to the transmission parameter report, perform efficiency analysis on the speed reducer, and upload the analysis results to the host computer; during the test, the motor protection module is used to analyze the switching loss coefficient of the speed reducer according to the frequency switching information, judge whether the speed reducer needs to be repaired and maintained, and improve the test safety.

Description

Technical Field

[0001] The present invention relates to the technical field of reducers, and in particular to a method and system for analyzing the precise speed reducer fixed error. Background Art

[0002] Reducers are generally used for low-speed and high-torque transmission equipment. The power of electric motors, internal combustion engines or other high-speed running engines is decelerated by meshing the gears with fewer teeth on the input shaft of the reducer with the large gears on the output shaft. The torsional stiffness of the fixed axle determines the transmission performance and reliability of the entire reducer. The lack of torsional stiffness of the fixed axle restricts the development of reducers in high-precision electromechanical transmission. Therefore, it is necessary to conduct precise and accurate transmission test on reducers.

[0003] However, the existing fixed axle test analysis system has the problem of being unable to process the test data in batches and reasonably select the corresponding data processing terminal for processing in combination with the matching values, resulting in low efficiency in the visualization processing of the test data and being unfavorable for realizing real-time, multi-source analysis and display of data; Based on the above shortcomings, the present invention proposes a precise speed reduction fixed difference analysis method and system. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a precise speed reduction solid difference analysis method and system.

[0005] To achieve the above-mentioned purpose, a precision speed reduction fixed difference analysis method and system are proposed according to an embodiment of the first aspect of the present invention, including a fixed axle configuration module, a fixed difference test module, a transmission acquisition module, a parameter analysis module, a host computer, a terminal allocation module, a frequency monitoring module and a motor protection module;

[0006] The fixed axle configuration module is used by test personnel to set the test configuration parameters of the fixed axle in the reducer; after the setting is successful, the transmission test of the reducer is carried out through the fixed difference test module;

[0007] The transmission acquisition module is used to collect the transmission information of the reducer in real time through a preset monitoring device and generate a transmission parameter report; the parameter analysis module includes a plurality of processing terminals, which are used to draw a corresponding angle-torque performance curve according to the transmission parameter report, perform efficiency analysis on the reducer, and upload the analysis results to the host computer;

[0008] Among them, when the parameter analysis module obtains the transmission parameter report of the reducer, the terminal allocation module is used to perform operation deviation analysis on the processing terminal, and select the processing terminal with the smallest operation deviation PL as the selected terminal to perform efficiency analysis on the reducer;

[0009] During the test, the frequency monitoring module is used to monitor the working frequency of the reducer; when it is detected that the working frequency of the reducer changes, the frequency switching information is recorded;

[0010] The motor protection module is used to analyze the switching loss coefficient of the reducer according to the frequency switching information. If the switching loss coefficient QS is greater than the loss threshold, a motor protection signal is generated to remind the tester to terminate the test and perform maintenance on the reducer.

[0011] Furthermore, the specific analysis steps of the terminal allocation module are:

[0012] In the preset time period, the operation status data of the processing terminal is collected once every R2 time interval, where R2 is a preset value; the number of access node connections, CPU load rate, bandwidth load rate and real-time network rate of the processing terminal are marked as Q1, Q2, Q3, and Q4 in sequence;

[0013] The operation coefficient ZX of the processing terminal is calculated using the formula ZX = (Q1×b1+Q4×b4) / (Q2×b2+Q3×b3), where b1, b2, b3, and b4 are coefficient factors; if the operation coefficient ZX is less than the operation threshold, the deviation signal is fed back to the terminal allocation module; the number of occurrences of the deviation signal is counted as P1;

[0014] The time period between adjacent deviation signals is taken as the deviation buffer period, and the number of operation status data collection in each deviation buffer period is counted as the deviation buffer frequency Li; the deviation buffer frequency Li is compared with the buffer frequency threshold to calculate the difference buffer coefficient CS; using the formula The operating bias value PL of the processing terminal is calculated, where g3 and g4 are coefficient factors.

[0015] Furthermore, the specific analysis steps of the motor protection module are:

[0016] During the test, the frequency switching times of the servo motor are counted as C1; the highest temperature of the servo motor at each switching is marked as WTi, and the maximum voltage value is marked as Ui;

[0017] The switching value QHi is calculated using the formula QHi=Wi / WG×g5+Ui / UG×g6, where g5 and g6 are coefficient factors; WG is the temperature threshold, and UG is the voltage threshold;

[0018] Compare the switching value QHi with the switching threshold, count the number of times QHi is greater than the switching threshold as P1, and when QHi is greater than the switching threshold, obtain the difference between QHi and the switching threshold and sum them to get the exceedance value CZ; use the formula The switching loss coefficient QS of the servo motor is calculated, where k1, k2, and k3 are coefficient factors.

[0019] Furthermore, the monitoring equipment includes a torque sensor and an angle sensor; the transmission information includes the closing torque and output angle of the reducer.

[0020] Furthermore, the parameter analysis module is also used to perform a plurality of curve overlap analyses to detect the relevant test conditions of the reducer each time.

[0021] Furthermore, the precise speed reduction solid difference analysis method includes:

[0022] Step 1: The test personnel sets the test configuration parameters of the fixed axle in the reducer through the fixed axle configuration module; after the setting is successful, the transmission test of the reducer is carried out through the fixed difference test module;

[0023] Step 2: Through the preset monitoring equipment, the transmission information of the reducer is collected in real time, and a transmission parameter report is generated; through the parameter analysis module, a corresponding angle-torque performance curve is drawn according to the transmission parameter report, and the efficiency of the reducer is analyzed;

[0024] Step 3: During the test, the operating frequency of the reducer is monitored by the frequency monitoring module; when the operating frequency of the reducer is detected to change, the frequency switching information is recorded;

[0025] Step 4: Use the motor protection module to analyze the switching loss coefficient of the reducer based on the frequency switching information to determine whether the reducer needs to be repaired and maintained.

[0026] Furthermore, the method also includes: after the parameter analysis module obtains the transmission parameter report of the reducer, the terminal allocation module performs an operation deviation analysis on the processing terminal, and selects the processing terminal with the smallest operation deviation as the selected terminal to perform efficiency analysis on the reducer.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The transmission acquisition module described in the present invention is used to collect the transmission information of the reducer in real time through a preset monitoring device, and generate a transmission parameter report; the parameter analysis module is used to obtain the transmission parameter report of the reducer and draw a corresponding angle-torque performance curve according to the transmission parameter report, perform efficiency analysis on the reducer, and upload the analysis results to the host computer; the present invention enables managers to operate the fixed axle under limited conditions according to their own needs, thereby analyzing various information through the collected data, and achieving comprehensive control of the test effect of the fixed axle;

[0029] 2. In the present invention, after the parameter analysis module obtains the transmission parameter report of the reducer, the terminal allocation module is used to perform an operation deviation analysis on the processing terminal, and select the processing terminal with the smallest operation deviation as the selected terminal, and perform efficiency analysis on the reducer to improve data processing efficiency; during the test, the motor protection module is used to analyze the switching loss coefficient of the reducer according to the frequency switching information. If the switching loss coefficient QS is greater than the loss threshold, a motor protection signal is generated to remind the tester to terminate the test and perform maintenance on the reducer to avoid serious loss of the servo motor and burn it out, thereby improving test safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a system block diagram of the precise speed reduction solid difference analysis system of the present invention.

[0032] Figure 2 It is a principle block diagram of the precise speed reduction solid difference analysis method of the present invention. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figure 1 to Figure 2 As shown, the precision speed reduction fixed difference analysis system includes a fixed axle configuration module, a fixed difference test module, a transmission acquisition module, a parameter analysis module, a host computer, a terminal allocation module, a frequency monitoring module and a motor protection module;

[0035] The fixed axle configuration module is used by test personnel to set the test configuration parameters of the fixed axle in the reducer; after the setting is successful, the transmission test of the reducer is carried out through the fixed difference test module;

[0036] The transmission acquisition module is used to collect the transmission information of the reducer in real time through the preset monitoring equipment and generate a transmission parameter report; the preset monitoring equipment includes a torque sensor, an angle sensor, etc.; the transmission information includes the closing torque and output angle of the reducer;

[0037] The parameter analysis module is used to obtain the transmission parameter report of the reducer and draw the corresponding angle-torque performance curve according to the transmission parameter report, perform efficiency analysis on the reducer, and upload the analysis results to the host computer;

[0038] Among them, the parameter analysis module is also used to perform a number of curve overlap analyses, detect the relevant test conditions of the reducer each time, and effectively eliminate gaps and cumulative errors; the test action in the present invention is convenient and flexible, which is convenient for users to set different angles and torques;

[0039] The present invention enables managers to operate the fixed axle under limited conditions according to their own needs, thereby analyzing various information through the collected data, and achieving comprehensive control of the test effect of the fixed axle;

[0040] The parameter analysis module includes several processing terminals. After the parameter analysis module obtains the transmission parameter report of the reducer, the terminal allocation module is used to perform operation deviation analysis on the processing terminal, and select the processing terminal with the smallest operation deviation as the selected terminal, perform efficiency analysis on the reducer, and improve data processing efficiency.

[0041] Among them, the specific analysis steps of the terminal allocation module are:

[0042] Within the preset time period, the operation status data of the processing terminal is collected once every R2 time interval, and the operation status data includes the number of access node connections, CPU load rate, bandwidth load rate and real-time network rate of the processing terminal; R2 is a preset value; the number of access node connections, CPU load rate, bandwidth load rate and real-time network rate of the processing terminal are marked as Q1, Q2, Q3, Q4 in sequence;

[0043] The operating coefficient ZX of the processing terminal is calculated using the formula ZX = (Q1×b1+Q4×b4) / (Q2×b2+Q3×b3), where b1, b2, b3, and b4 are coefficient factors; if the operating coefficient ZX is less than the operating threshold, the deviation signal is fed back to the terminal allocation module;

[0044] The number of occurrences of deviation signals is counted as P1; the time period between adjacent deviation signals is intercepted as the deviation buffer period, and the number of operation status data collection in each deviation buffer period is counted as the deviation buffer frequency Li; the deviation buffer frequency Li is compared with the buffer frequency threshold;

[0045] The number of times that Li is less than the buffer frequency threshold is counted as P2. When Li is less than the buffer frequency threshold, the difference between Li and the buffer frequency threshold is obtained and summed to obtain the difference buffer value CH. The difference buffer coefficient CS is calculated using the formula CS=P2×g1+CH×g2, where g1 and g2 are coefficient factors;

[0046] Using the formula The operation deviation PL of the processing terminal is calculated, where g3 and g4 are coefficient factors;

[0047] During the test, the frequency monitoring module is used to monitor the changes in the working frequency of the reducer; when the working frequency of the reducer is detected to have changed, the frequency switching information is recorded; the frequency switching information includes the switching time, the maximum temperature of the reducer before and after the switching, and the maximum voltage value passing through the reducer;

[0048] The motor protection module is used to analyze the switching loss coefficient of the reducer according to the frequency switching information, determine whether the reducer needs to be repaired and maintained, and improve the test safety; the specific analysis steps are:

[0049] During the test, the frequency switching times of the servo motor are counted as C1;

[0050] The highest temperature of the servo motor at each switching is marked as WTi, and the maximum voltage value is marked as Ui; the switching value QHi is calculated using the formula QHi=Wi / WG×g5+Ui / UG×g6, where g5 and g6 are coefficient factors; WG is the temperature threshold, and UG is the voltage threshold;

[0051] Compare the switching value QHi with the switching threshold, and count the number of times QHi is greater than the switching threshold as P1. When QHi is greater than the switching threshold, obtain the difference between QHi and the switching threshold and sum them to get the exceedance value CZ. Use the formula The switching loss coefficient QS of the servo motor is calculated, where k1, k2, and k3 are all coefficient factors;

[0052] The switching loss coefficient QS is compared with the loss threshold; if QS is greater than the loss threshold, a motor protection signal is generated; the motor protection module is used to transmit the motor protection signal to the host computer to remind the tester to terminate the test and perform maintenance on the reducer to avoid serious loss of the servo motor and burn it out, thereby improving test safety.

[0053] The precise speed reduction fixed difference analysis method is applied to the precise speed reduction fixed difference analysis system, including:

[0054] Step 1: The test personnel sets the test configuration parameters of the fixed axle in the reducer through the fixed axle configuration module; after the setting is successful, the transmission test of the reducer is carried out through the fixed difference test module;

[0055] Step 2: Use the preset monitoring equipment to collect the transmission information of the reducer in real time and generate a transmission parameter report; use the parameter analysis module to draw the corresponding angle-torque performance curve according to the transmission parameter report and perform efficiency analysis on the reducer;

[0056] Step 3: During the test, the operating frequency of the reducer is monitored by the frequency monitoring module; when the operating frequency of the reducer is detected to change, the frequency switching information is recorded;

[0057] Step 4: Use the motor protection module to analyze the switching loss coefficient of the reducer according to the frequency switching information to determine whether the reducer needs to be repaired and maintained;

[0058] The method also includes: after the parameter analysis module obtains the transmission parameter report of the reducer, the terminal allocation module performs an operation deviation analysis on the processing terminal, selects the processing terminal with the smallest operation deviation as the selected terminal, and performs an efficiency analysis on the reducer.

[0059] The above formulas are all calculated by removing dimensions and taking numerical values. The formula is a formula that is closest to the actual situation obtained by collecting a large amount of data and performing software simulation. The preset parameters and preset thresholds in the formula are set by technical personnel in this field according to actual conditions or obtained by simulating a large amount of data.

[0060] Working principle of the present invention:

[0061] The method and system for analyzing the fixed difference of precision reduction gearbox, when working, the fixed axle configuration module is used by the test personnel to set the test configuration parameters of the fixed axle in the reducer; after the setting is successful, the transmission test of the reducer is carried out through the fixed difference test module; the transmission acquisition module is used to collect the transmission information of the reducer in real time through the preset monitoring equipment, and generate a transmission parameter report; the parameter analysis module is used to obtain the transmission parameter report of the reducer and draw the corresponding angle-torque performance curve according to the transmission parameter report, perform efficiency analysis on the reducer, and upload the analysis results to the host computer; the present invention enables the manager to make the fixed axle operate under limited conditions according to his own needs, so as to analyze various information through the collected data, and realize the comprehensive control of the test effect of the fixed axle;

[0062] The parameter analysis module includes several processing terminals. When the parameter analysis module obtains the transmission parameter report of the reducer, the terminal allocation module is used to perform operation deviation analysis on the processing terminal, and select the processing terminal with the smallest operation deviation as the selected terminal to perform efficiency analysis on the reducer to improve data processing efficiency. During the test, the frequency monitoring module is used to monitor the changes in the working frequency of the reducer. When the working frequency of the reducer is detected to have changed, the frequency switching information is recorded. The motor protection module is used to analyze the switching loss coefficient of the reducer according to the frequency switching information. If the switching loss coefficient QS is greater than the loss threshold, a motor protection signal is generated to remind the tester to terminate the test and perform maintenance on the reducer to avoid serious loss of the servo motor and burn it out, thereby improving test safety.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0064] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Precision speed reduction solid difference analysis system, characterized by: It includes fixed axle configuration module, fixed difference test module, transmission acquisition module, parameter analysis module, host computer, terminal allocation module, frequency monitoring module and motor protection module; The fixed axle configuration module is used by test personnel to set the test configuration parameters of the fixed axle in the reducer; after the setting is successful, the transmission test of the reducer is carried out through the fixed difference test module; The transmission acquisition module is used to collect the transmission information of the reducer in real time through a preset monitoring device and generate a transmission parameter report; the parameter analysis module includes a plurality of processing terminals, which are used to draw a corresponding angle-torque performance curve according to the transmission parameter report, perform efficiency analysis on the reducer, and upload the analysis results to the host computer; Among them, when the parameter analysis module obtains the transmission parameter report of the reducer, the terminal allocation module is used to perform operation deviation analysis on the processing terminal, and select the processing terminal with the smallest operation deviation PL as the selected terminal to perform efficiency analysis on the reducer; Among them, the specific analysis steps of the terminal allocation module are: In the preset time period, the operation status data of the processing terminal is collected once every R2 time interval, where R2 is a preset value; the number of access node connections, CPU load rate, bandwidth load rate and real-time network rate of the processing terminal are marked as Q1, Q2, Q3, and Q4 in sequence; The operating coefficient ZX of the processing terminal is calculated using the formula ZX=(Q1×b1+Q4×b4) / (Q2×b2+Q3×b3), where b1, b2, b3, and b4 are coefficient factors; if the operating coefficient ZX is less than the operating threshold, the deviation signal is fed back to the terminal allocation module; the number of occurrences of the deviation signal is counted as P1; The time period between adjacent deviation signals is intercepted as the deviation buffer period, and the number of operation status data collection in each deviation buffer period is counted as the deviation buffer frequency Li; the deviation buffer frequency Li is compared with the buffer frequency threshold to calculate the difference buffer coefficient CS; Using the formula The operation deviation PL of the processing terminal is calculated, where g3 and g4 are coefficient factors; During the test, the frequency monitoring module is used to monitor the working frequency of the reducer; when it is detected that the working frequency of the reducer changes, the frequency switching information is recorded; The motor protection module is used to analyze the switching loss coefficient of the reducer according to the frequency switching information. If the switching loss coefficient QS is greater than the loss threshold, a motor protection signal is generated to remind the tester to terminate the test and perform maintenance on the reducer.

2. The precise speed reduction solid difference analysis system according to claim 1 is characterized in that: The specific analysis steps of the motor protection module are: During the test, the frequency switching times of the servo motor are counted as C1; the highest temperature of the servo motor at each switching is marked as Wi, and the maximum voltage value is marked as Ui; The switching value QHi is calculated using the formula QHi=Wi / WG×g5+Ui / UG×g6, where g5 and g6 are coefficient factors; WG is the temperature threshold, and UG is the voltage threshold; Compare the switching value QHi with the switching threshold, count the number of times QHi is greater than the switching threshold as P1, and when QHi is greater than the switching threshold, obtain the difference between QHi and the switching threshold and sum them to obtain the exceeding value CZ; Using the formula The switching loss coefficient QS of the servo motor is calculated, where k1, k2, and k3 are coefficient factors.

3. The precise speed reduction solid difference analysis system according to claim 1 is characterized in that: The monitoring equipment includes a torque sensor and an angle sensor; the transmission information includes the closing torque and output angle of the reducer.

4. The precise speed reduction solid difference analysis system according to claim 1 is characterized in that: The parameter analysis module is also used to perform a plurality of curve overlap analyses to detect the relevant test conditions of the reducer each time.

5. A method for analyzing the precise deceleration difference, applied to a system for analyzing the precise deceleration difference as claimed in any one of claims 1 to 4, characterized in that: include: Step 1: The test personnel sets the test configuration parameters of the fixed axle in the reducer through the fixed axle configuration module; after the setting is successful, the transmission test of the reducer is carried out through the fixed difference test module; Step 2: Through the preset monitoring equipment, the transmission information of the reducer is collected in real time, and a transmission parameter report is generated; through the parameter analysis module, a corresponding angle-torque performance curve is drawn according to the transmission parameter report, and the efficiency of the reducer is analyzed; Step 3: During the test, the operating frequency of the reducer is monitored by the frequency monitoring module; when the operating frequency of the reducer is detected to change, the frequency switching information is recorded; Step 4: Use the motor protection module to analyze the switching loss coefficient of the reducer based on the frequency switching information to determine whether the reducer needs to be repaired and maintained.

6. The precise speed reduction solid difference analysis method according to claim 5 is characterized in that: The method also includes: after the parameter analysis module obtains the transmission parameter report of the reducer, the terminal allocation module performs an operation deviation analysis on the processing terminal, selects the processing terminal with the smallest operation deviation as the selected terminal, and performs an efficiency analysis on the reducer.

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