CN111024395A - Bearing torque detection and analysis system and method - Google Patents
Bearing torque detection and analysis system and method Download PDFInfo
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- CN111024395A CN111024395A CN201911350625.XA CN201911350625A CN111024395A CN 111024395 A CN111024395 A CN 111024395A CN 201911350625 A CN201911350625 A CN 201911350625A CN 111024395 A CN111024395 A CN 111024395A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
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Abstract
The invention provides a bearing torque detection and analysis system and a bearing torque detection and analysis method, belonging to the field of torque detection and analysis; the whole system mainly comprises a torque detection module, a data receiving module and a data processing module; the torque detection module is in signal connection with the data receiving module, the data receiving module exchanges data with the data processing module through the Ethernet, the data processing module can send instructions to the data receiving module, the data receiving module controls the torque detection module to move, meanwhile, the torque detection module transmits the detected data to the data receiving module, and then the detected data are transmitted to the data processing module by the data receiving module to be analyzed and processed; the data receiving module adopts a PLC, so that the cost is low and the adaptability is good; the data processing mode of batch transmission is adopted, so that the communication speed of the data receiving module and the data processing module is improved; the data processing module can process the data to form a torque-angle relation graph according to the obtained data, and the torque-angle relation graph is more visual and clear.
Description
Technical Field
The invention belongs to the field of torque detection and analysis, and particularly relates to a bearing torque detection and analysis system and method.
Background
Most of the bearing torque detection systems on the market only have a detection function but no analysis function, the acquisition frequency is low, and the acquisition and quantification operation on a large amount of data generated by detection cannot be carried out; the detection system can not store parameter data in the detection process, so that retrospective searching can not be carried out at the later stage. In addition, some detection systems with analysis function in the market often adopt a computer acquisition card to acquire data, and the computer acquisition card is expensive and cannot be applied to occasions with severe industrial environment, so that the system has considerable limitation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a bearing torque detection and analysis system and a bearing torque detection and analysis method, which adopt a Programmable Logic Controller (PLC) with lower cost to carry out data acquisition, not only can save parameter data in the detection process, but also can carry out graphical analysis on the detection result to generate a relation graph of an angle and torque.
The present invention achieves the above-described object by the following technical means.
A bearing torque detection and analysis system comprises a torque detection module, wherein the torque detection module is in signal connection with a data receiving module, and the data receiving module and a data processing module exchange data through an Ethernet.
Furthermore, the torque detection module comprises a servo motor, a rotating shaft of the servo motor is connected with the bearing workpiece, and a torque sensor is arranged at the connection position of the servo motor and the bearing workpiece; the outer ring of the bearing workpiece is provided with a loading device which is used for applying force to the bearing workpiece; and the loading device is provided with a pressure sensor.
Furthermore, the servo motor, the torque sensor, the loading device and the pressure sensor are in signal connection with the data receiving module.
Further, the data receiving module is a PLC.
Furthermore, the data processing module is an upper computer, and a programming system, a configuration king and an SQLSERVER are preinstalled in the upper computer.
Furthermore, the PLC and the upper computer communicate by adopting an MX Component communication control.
According to the analysis method utilizing the bearing torque detection and analysis system, an upper computer sends a configuration instruction to a PLC (programmable logic controller), and the PLC controls a servo motor to drive a bearing workpiece to move; meanwhile, the PLC controls the loading device to apply force to the outer ring of the bearing workpiece, the torque sensor and the pressure sensor transmit detection data to the PLC, and the PLC transmits the received data and parameter data stored in the PLC to the upper computer; and the upper computer processes the data and acquires an angle and torque relation diagram.
Furthermore, the PLC and the upper computer perform data transmission in a batch transmission mode.
Furthermore, the data transmitted to the upper computer by the PLC is stored in the storage unit, and the upper computer indirectly reads the floating point data in the storage unit by using the MXcomponent and sends the floating point data to SQL SERVER for processing.
The invention has the following beneficial effects:
compared with the prior art, the PLC is adopted to replace the traditional computer acquisition card for data acquisition, the cost is lower, and the PLC can be more suitable for severe industrial environment and has wider application range compared with a computer acquisition card; according to the invention, a data processing mode of batch transfer is adopted, so that the communication speed of the PLC and the upper computer is improved, and the high-speed acquisition of data is realized; the detection and analysis system can generate an analysis chart of the angle and the torque, and is more visual and clear.
Drawings
FIG. 1 is a schematic diagram of a torque detection and analysis system according to the present invention;
FIG. 2 is a graph of the torque test analysis results of the present invention.
In the figure: 1-10000N; 2-8000N; 3-6000N; 4-4000N; 5-2000N; 6-0N.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
As shown in fig. 1, the torque detection and analysis system of the present invention includes a torque detection module, a data receiving module and a data processing module, wherein the torque detection module is in signal connection with the data receiving module, and the data receiving module and the data processing module perform data exchange via ethernet.
The torque detection module mainly comprises a servo motor, a torque sensor, a bearing workpiece, a loading device and a pressure sensor; a rotating shaft of the servo motor is connected with a bearing workpiece, an inner ring of the bearing workpiece is arranged on the rotating shaft, and a torque sensor is arranged at the joint of the servo motor and the bearing workpiece; the outer ring of the bearing workpiece is provided with a loading device which is used for applying thrust to the bearing workpiece and pushing the bearing workpiece to move, and the loading device is provided with a pressure sensor; the servo motor, the torque sensor, the loading device and the pressure sensor are in signal connection with the data receiving module. The data receiving module is a Programmable Logic Controller (PLC); the PLC is used as a signal input or output component and can read data transmitted by the torque sensor and the pressure sensor; the rotation angle and the frequency of the servo motor can be controlled, the movement of the loading device is controlled, and the control of the torque detection module is further realized. The data processing module is an upper computer, and a programming system, a configuration king and a relational database management system (SQL SERVER) are preinstalled in the upper computer; the upper computer and the PLC adopt Mitsubishi PLC communication control (MX Component) for communication; the upper computer receives the data transmitted by the PLC and analyzes the data to form a graph result, and meanwhile, the upper computer can also send an instruction to the PLC, so that the PLC controls the servo motor and the loading device to move, and the torque detection module is controlled.
During actual work, in an upper computer, a configuration instruction is compiled by using the configuration king and sent to the PLC, and the PLC executes the instruction to control the servo motor to alternately perform forward rotation and reverse rotation movement under different frequencies and different angles; the servo motor drives the bearing workpiece to rotate, and the torque sensor records torque data; meanwhile, the PLC controls the loading device to apply thrust to the outer ring of the bearing workpiece, and a pressure sensor arranged on the loading device records data of the thrust; the torque sensor and the pressure sensor transmit detected data to the PLC, and the PLC transmits the received data and parameter data (angle data and frequency data) stored in the PLC to the upper computer; the upper computer extracts data by using a control instruction written by a programming language (VB.NET) in a programming system and reads the data, and then the obtained data is imported SQL SERVER to be analyzed to form an angle and torque relation graph under different thrust conditions as shown in FIG. 2; the abscissa in the graph represents angular values in degrees (°) and the ordinate represents torque in newton meters (n.m); for convenience of illustration, SQL SERVER represents the angle values in 1000 times magnification, with reference numbers indicating different thrust magnitudes.
Wherein, the speed that PLC gathered data can reach 0.001 second and read 1 data, and when PLC and host computer communication, the speed can be very slow, can only reach 0.01 second and transmit 1 data. Therefore, the invention adopts a batch transfer mode to improve the communication speed of the PLC and the upper computer: the PLC stores the data in the memory with the address from 0 to N (N is a positive integer) once reading the data, N is preferably 2000 in this embodiment, and after 2000 times of data reading, the upper computer sends a reading instruction to take the memory data from 0 to 2000 at one time, and the above cycle is repeated to realize batch transfer.
The data transmitted to the upper computer by the PLC is a 16-bit binary system which is a storage unit, one floating point number is composed of two groups of storage units, but the MX Component communication control cannot directly read the floating point number. Therefore, the present invention utilizes the MXcomponent communication control to indirectly read the floating point number: firstly, utilizing MX Component to read out integer data of two groups of storage units, then converting the integer data into byte array; for byte arrays, a specified number of bytes are copied from a source array starting at a specified offset to a destination array starting at a specified offset to form a 32-bit binary data which is converted to floating point data in SQL SERVER, using Structured Query Language (SQL) programming to form an angle versus torque graph.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (9)
1. The bearing torque detection and analysis system is characterized by comprising a torque detection module, wherein the torque detection module is in signal connection with a data receiving module, and the data receiving module and a data processing module exchange data through Ethernet.
2. The bearing torque detection and analysis system of claim 1, wherein the torque detection module comprises a servo motor, a rotating shaft of the servo motor is connected with the bearing workpiece, and a torque sensor is arranged at the connection position of the servo motor and the bearing workpiece; the outer ring of the bearing workpiece is provided with a loading device which is used for applying force to the bearing workpiece; and the loading device is provided with a pressure sensor.
3. The system for detecting and analyzing the bearing torque as claimed in claim 2, wherein the servo motor, the torque sensor, the loading device and the pressure sensor are in signal connection with the data receiving module.
4. The bearing torque detection and analysis system of claim 1, wherein the data receiving module is a PLC.
5. The system for detecting and analyzing the torque of the bearing of claim 1, wherein the data processing module is an upper computer, and a programming system, a configuration king and SQL SERVER are pre-installed in the upper computer.
6. The bearing torque detection and analysis system according to claim 4 or 5, wherein the PLC and the upper computer communicate by using MX Component communication control.
7. An analysis method of the bearing torque detection and analysis system according to any one of claims 1 to 6, characterized in that the upper computer sends configuration instructions to the PLC, and the PLC controls the servo motor to drive the bearing workpiece to move; meanwhile, the PLC controls the loading device to apply force to the outer ring of the bearing workpiece, the torque sensor and the pressure sensor transmit detection data to the PLC, and the PLC transmits the received data and parameter data stored in the PLC to the upper computer; and the upper computer processes the data and acquires an angle and torque relation diagram.
8. The analytical method of claim 7, wherein the PLC and the host computer perform data transfer in a batch transfer manner.
9. The analytical method of claim 7, wherein the data transmitted by the PLC to the upper computer is stored in the storage unit, and the upper computer indirectly reads the floating point data of the storage unit by using MX Component and sends the floating point data to SQL SERVER for processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911350625.XA CN111024395A (en) | 2019-12-24 | 2019-12-24 | Bearing torque detection and analysis system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911350625.XA CN111024395A (en) | 2019-12-24 | 2019-12-24 | Bearing torque detection and analysis system and method |
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| CN111024395A true CN111024395A (en) | 2020-04-17 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003102524A1 (en) * | 2002-05-29 | 2003-12-11 | The Timken Company | In-bearing torque sensor assembly |
| CN103048072A (en) * | 2012-12-14 | 2013-04-17 | 瓦房店轴承集团有限责任公司 | Bearing torque detection testing machine |
| CN103425085A (en) * | 2013-07-24 | 2013-12-04 | 健雄职业技术学院 | Data-warehouse-based industrial control upper computer management system and data processing method |
| CN207007515U (en) * | 2017-07-10 | 2018-02-13 | 洛阳铭昊测控科技有限公司 | A kind of bearing tester |
| CN107860501A (en) * | 2017-12-20 | 2018-03-30 | 宁波慈兴精密传动科技有限公司 | Bearing measuring load-measuring device |
| CN108692845A (en) * | 2018-03-12 | 2018-10-23 | 江苏希西维轴承有限公司 | A kind of bearing radial loaded torductor |
-
2019
- 2019-12-24 CN CN201911350625.XA patent/CN111024395A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003102524A1 (en) * | 2002-05-29 | 2003-12-11 | The Timken Company | In-bearing torque sensor assembly |
| CN103048072A (en) * | 2012-12-14 | 2013-04-17 | 瓦房店轴承集团有限责任公司 | Bearing torque detection testing machine |
| CN103425085A (en) * | 2013-07-24 | 2013-12-04 | 健雄职业技术学院 | Data-warehouse-based industrial control upper computer management system and data processing method |
| CN207007515U (en) * | 2017-07-10 | 2018-02-13 | 洛阳铭昊测控科技有限公司 | A kind of bearing tester |
| CN107860501A (en) * | 2017-12-20 | 2018-03-30 | 宁波慈兴精密传动科技有限公司 | Bearing measuring load-measuring device |
| CN108692845A (en) * | 2018-03-12 | 2018-10-23 | 江苏希西维轴承有限公司 | A kind of bearing radial loaded torductor |
Non-Patent Citations (3)
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| 030403118: "三菱工控论坛 使用MX Component控件读取PLC中浮点数32位存储器", 《工控人家园》 * |
| J.JEZIC VON GESSENECK，ETAL.: "A torque-based method for the study of roller bearing degradation under poor lubrication conditions in a lead–bismuth environment", 《NUCLEAR ENGINEERING AND DESIGN》 * |
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Application publication date: 20200417 |