CN116698730A - Bolt and nut friction coefficient test system - Google Patents
Bolt and nut friction coefficient test system Download PDFInfo
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- CN116698730A CN116698730A CN202310804683.5A CN202310804683A CN116698730A CN 116698730 A CN116698730 A CN 116698730A CN 202310804683 A CN202310804683 A CN 202310804683A CN 116698730 A CN116698730 A CN 116698730A
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- 238000012360 testing method Methods 0.000 title claims abstract description 68
- 238000011156 evaluation Methods 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 238000010586 diagram Methods 0.000 claims description 9
- 238000012937 correction Methods 0.000 claims description 6
- 230000000977 initiatory effect Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 2
- 238000013101 initial test Methods 0.000 abstract description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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- Immunology (AREA)
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a friction coefficient test system for bolts and nuts, which comprises: the system comprises a test initial system, a detection control system, an error compensation system and a calculation evaluation system. The initial test system is used for setting initial parameters of the friction coefficient test system. The detection control system comprises a control system, a sensing system, a data acquisition module and a communication connection module, wherein the control system is used for controlling the driving assembly to apply axial force and torque to the bolt and the nut, the sensing system is used for detecting the axial force and the torque borne by the threaded nut, and the data acquisition module is used for carrying out data transmission on the axial force and the torque borne by the threaded nut acquired by the sensing system. According to the invention, the error compensation system is arranged in the bolt and nut friction coefficient test system, so that the accuracy of the bolt and nut friction coefficient test system in detecting the friction coefficient of the bolt and nut is remarkably improved, and the detection reliability of the bolt and nut friction coefficient test system is greatly improved.
Description
Technical Field
The invention relates to a friction coefficient test system, in particular to a bolt and nut friction coefficient test system.
Background
Bolts and nuts are commonly used fasteners in mechanical equipment, the fastening performance of the fasteners directly affects the operation safety and reliability of the mechanical equipment, and the friction coefficient of the bolts and nuts is an important influence factor of the fastening performance of the bolts and nuts.
The friction coefficient of the bolt and the nut refers to the ratio of the friction force generated when the bolt and the nut are fastened to the axial force applied to the bolt and the nut, and the magnitude of the friction coefficient directly influences the fastening force and the loosening force of the bolt, so that the friction coefficient test of the bolt and the nut is necessary before the production and the processing or the use of the bolt and the nut.
The bolt and nut friction coefficient test is a detection system for testing the friction coefficient of a bolt and nut, and is usually matched with a bolt and nut friction coefficient testing machine, in the use process, the bolt and nut to be detected is assembled on the bolt and nut friction coefficient testing machine, the bolt and nut are driven to rotate through a motor, then the axial force applied to the bolt and nut is detected through an axial force sensor and a torque sensor, and finally the friction coefficient of the bolt and nut is detected through the bolt and nut friction coefficient testing system according to the data of the axial force sensor and the torque sensor.
The friction coefficient test system for the bolts and the nuts in the prior art mainly detects the friction coefficient of the bolts and the nuts in a mode of detecting the axial force and the torque borne by the bolts and the nuts, however, due to the complexity of a loosening mechanism of a threaded connection structure, the accuracy of detecting and judging the friction coefficient of the bolts and the nuts through the axial force and the torque is poor, so that the detection reliability of the friction coefficient test system for the bolts and the nuts is poor.
Disclosure of Invention
The invention aims to provide a bolt and nut friction coefficient test system which can improve the detection accuracy of the bolt and nut friction coefficient test system.
In order to achieve the above object, the present invention provides a bolt-nut friction coefficient test system, comprising: the system comprises a test initial system, a detection control system, an error compensation system and a calculation evaluation system.
The initial test system is used for carrying out initial parameter setting on the friction coefficient test system.
The detection control system comprises a control system, a sensing system, a data acquisition module and a communication connection module, wherein the control system is used for controlling the driving assembly to apply axial force and torque to the bolt and the nut, the sensing system is used for detecting the axial force and the torque borne by the threaded nut, the data acquisition module is used for carrying out data transmission on the axial force and the torque borne by the threaded nut acquired by the sensing system, and the communication connection module is used for carrying out information communication on the initial test system, the detection control system, the error compensation system and the calculation evaluation system.
The error compensation system is used for carrying out data compensation on the friction coefficient test system.
The calculation evaluation system comprises a friction coefficient calculation system and a reliability evaluation system, wherein the friction coefficient calculation system is used for calculating the friction coefficient of the bolt and the nut, and the reliability evaluation system is used for evaluating the reliability of the bolt and the nut.
In one or more embodiments, the test initiation system includes a functional configuration module for functionally configuring a coefficient of friction test system, a parameter setting module, and an initialization module. The accuracy of friction coefficient detection of the initial test system on bolts and nuts is improved. The parameter setting module is used for setting parameters of the bolts and nuts to be detected. And error compensation is conveniently carried out on the bolt and the nut according to parameters of the bolt and the nut to be detected. Meanwhile, the axial force and torque of the bolt and the nut are conveniently adjusted according to the parameters of the bolt and the nut, and the accuracy of detecting the friction coefficient of the bolt and the nut is improved. The initialization module is used for initializing the friction coefficient test system.
In one or more embodiments, the functional configuration module includes an axial force test item and a torque test item, and the setting parameters of the parameter setting module include a bolt-and-nut size parameter and a bolt-and-nut material model.
In one or more embodiments, the control system comprises a motor control unit and a sensing control unit, wherein the motor control unit is used for driving and controlling a motor of the bolt and nut friction coefficient testing machine, so that the actual axial force and torque of the bolt and nut to be detected can be conveniently controlled in a mode of controlling the motor to operate. The sensing control unit is used for driving and controlling the axial force sensor and the torque sensor. The axial force sensor and the torque sensor are convenient to detect the axial force and the torque of the bolt and the nut to be detected.
In one or more embodiments, the sensing system includes an axial force sensor for detecting an axial force experienced by the bolt and nut, and a torque sensor for data detection of a torque experienced by the bolt and nut.
In one or more embodiments, the communication connection module is an upper computer, and the data acquisition module and the communication connection module are both configured in the upper computer.
In one or more embodiments, the error compensation system includes an error compensation database, a data matching system, and a compensation correction system. The error compensation system is convenient to play an error compensation role on the calculation evaluation system, and the detection accuracy of the bolt and nut friction coefficient test system is improved.
In one or more embodiments, the error compensation database is configured to store error compensation data. The data matching system is used for retrieving error compensation data according to initial parameters of the bolts and the nuts. The compensation correction system is used for performing error compensation on the calculation evaluation system.
In one or more embodiments, the coefficient of friction calculation system includes a data communication unit and a calculation unit. The data communication unit is used for transmitting detection data of the sensing system, and the calculation unit is used for calculating friction coefficients of bolts and nuts.
In one or more embodiments, the reliability evaluation system includes a data compensation unit for data compensation of the data acquisition module, an evaluation determination unit, and an output display unit. The evaluation judging unit is used for evaluating and judging the reliability of the bolts and the nuts, and the output display unit is used for outputting and displaying the friction coefficient diagram of the bolts and the nuts and the evaluation judging result.
Compared with the prior art, the error compensation system is arranged in the bolt and nut friction coefficient test system, so that the accuracy of the bolt and nut friction coefficient test system in detecting the friction coefficient of the bolt and nut is remarkably improved, and the detection reliability of the bolt and nut friction coefficient test system is greatly improved.
Drawings
FIG. 1 is a functional diagram of a bolt-and-nut friction coefficient testing system according to one embodiment of the present invention.
Fig. 2 is a functional diagram of a detection control system according to an embodiment of the present invention.
FIG. 3 is a functional diagram of a computing evaluation system according to an embodiment of the invention.
FIG. 4 is an initial interface diagram of a bolt-and-nut friction testing system according to one embodiment of the invention.
Fig. 5 is an interface diagram of an initial system of experiments in accordance with an embodiment of the present invention.
FIG. 6 is an interface diagram of parameter settings in accordance with one embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
As shown in fig. 1 to 6, a screw and nut friction coefficient test system according to an embodiment of the present invention includes: the system comprises a test initial system, a detection control system, an error compensation system and a calculation evaluation system.
As shown in fig. 1, the test initiation system is used to make initial parameter settings for the coefficient of friction test system.
As shown in fig. 1, the test initiation system includes a function configuration module, a parameter setting module, and an initialization module.
As shown in fig. 1, the functional configuration module is used for performing functional configuration on the friction coefficient test system. The accuracy of friction coefficient detection of the initial test system on bolts and nuts is improved. The parameter setting module is used for setting the parameters of the bolts and nuts to be detected. And error compensation is conveniently carried out on the bolt and the nut according to parameters of the bolt and the nut to be detected. Meanwhile, the axial force and torque of the bolt and the nut are conveniently adjusted according to the parameters of the bolt and the nut, and the accuracy of detecting the friction coefficient of the bolt and the nut is improved. The initialization module is used for initializing the friction coefficient test system.
Specifically, the function configuration module comprises an axial force test item and a torque test item, and the setting parameters of the parameter setting module comprise a bolt and nut size parameter and a bolt and nut material model.
As shown in fig. 1 to 2, the detection control system includes a control system, a sensing system, a data acquisition module, and a communication connection module. The control system is used for controlling the driving assembly to apply axial force and torque to the bolt and the nut, and the sensing system is used for detecting the axial force and the torque applied to the threaded nut.
As shown in fig. 1 to 2, the data acquisition module is used for transmitting data of axial force and torque applied to the threaded nut acquired by the sensing system. The friction coefficient of the bolt and the nut is conveniently detected in a mode of data acquisition of the axial force and the torque through the data acquisition module. The communication connection module is used for carrying out information communication on the test initial system, the detection control system, the error compensation system and the calculation evaluation system.
As shown in fig. 1 to 2, the control system comprises a motor control unit and a sensing control unit, wherein the motor control unit is used for driving and controlling a motor of the bolt and nut friction coefficient testing machine, so that the actual axial force and torque of the bolt and nut to be detected can be conveniently controlled in a mode of controlling the motor to operate. The sensing control unit is used for driving and controlling the axial force sensor and the torque sensor. The axial force sensor and the torque sensor are convenient to detect the axial force and the torque of the bolt and the nut to be detected.
As shown in fig. 1 to 2, the sensing system includes an axial force sensor for detecting an axial force applied to the bolt and the nut, and a torque sensor for detecting data of a torque applied to the bolt and the nut.
The communication connection module is an upper computer, and the data acquisition module and the communication connection module are both configured in the upper computer.
As shown in fig. 1, the error compensation system is used to data compensate the coefficient of friction test system.
As shown in fig. 1, the error compensation system includes an error compensation database, a data matching system, and a compensation correction system. The error compensation system is convenient to play an error compensation role on the calculation evaluation system, and the detection accuracy of the bolt and nut friction coefficient test system is improved.
As shown in fig. 1, the error compensation database is used to store error compensation data. The data matching system is used for retrieving error compensation data according to initial parameters of the bolts and the nuts. The compensation correction system is used for performing error compensation on the calculation evaluation system.
As shown in fig. 1 to 3, the calculation evaluation system includes a friction coefficient calculation system for calculating the friction coefficient of the bolt and the nut, and a reliability evaluation system for evaluating the reliability of the bolt and the nut.
As shown in fig. 1 to 3, the friction coefficient calculating system includes a data communication unit and a calculating unit. The data communication unit is used for transmitting detection data of the sensing system, and the calculation unit is used for calculating friction coefficients of bolts and nuts.
As shown in fig. 1 to 3, the reliability evaluation system includes a data compensation unit, an evaluation judging unit, and an output display unit, where the data compensation unit is used for performing data compensation on the data acquisition module. The evaluation judging unit is used for evaluating and judging the reliability of the bolts and the nuts, and the output display unit is used for outputting and displaying the friction coefficient diagram of the bolts and the nuts and the evaluation judging result.
When the device is specifically used, a bolt and a nut to be detected are installed on a bolt and nut friction coefficient testing machine, and the size and material parameters of the bolt and the nut to be detected are input through a parameter setting module in an initial testing system. And retrieving error compensation data in an error compensation database according to the size and material parameters of the bolt and the nut to be detected.
Then, by detecting the operation of a motor control unit and a sensing control unit in the control system, axial force and torque are applied to the bolt and the nut to be detected in a mode of controlling the operation of the motor. And the axial force sensor and the torque sensor are adopted to collect the stress data of the bolt and the nut to be detected. And the friction coefficient of the bolt and the nut is calculated by a friction coefficient calculation system, and the friction coefficient of the bolt and the nut is calculated to be optimized under the compensation action of an error compensation system. And the reliability of the bolts and nuts is evaluated by a reliability evaluation system.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. A system for testing the friction coefficient of a bolt and nut, comprising:
the test initial system is used for setting initial parameters of the friction coefficient test system;
the detection control system comprises a control system, a sensing system, a data acquisition module and a communication connection module, wherein the control system is used for controlling the driving assembly to apply axial force and torque to the bolt and the nut, the sensing system is used for detecting the axial force and the torque borne by the threaded nut, the data acquisition module is used for carrying out data transmission on the axial force and the torque borne by the threaded nut acquired by the sensing system, and the communication connection module is used for carrying out information communication on the test initial system, the detection control system, the error compensation system and the calculation evaluation system;
the error compensation system is used for carrying out data compensation on the friction coefficient test system;
the system comprises a calculation evaluation system and a reliability evaluation system, wherein the calculation evaluation system comprises a friction coefficient calculation system and a reliability evaluation system, the friction coefficient calculation system is used for calculating the friction coefficient of the bolt and the nut, and the reliability evaluation system is used for evaluating the reliability of the bolt and the nut.
2. The bolt-and-nut friction coefficient test system according to claim 1, wherein the test initiation system comprises a functional configuration module, a parameter setting module and an initialization module, the functional configuration module is used for performing functional configuration on the friction coefficient test system, the parameter setting module is used for setting parameters of bolts and nuts to be detected, and the initialization module is used for performing initialization processing on the friction coefficient test system.
3. The bolt-and-nut friction coefficient testing system of claim 2, wherein the functional configuration module includes an axial force test term and a torque test term, and the set parameters of the parameter setting module include a bolt-and-nut dimensional parameter and a bolt-and-nut material model.
4. The screw and nut friction coefficient testing system according to claim 1, wherein the control system comprises a motor control unit for driving control of a motor of the screw and nut friction coefficient testing machine and a sensing control unit for driving control of the axial force sensor and the torque sensor.
5. The system of claim 1, wherein the sensing system comprises an axial force sensor for detecting an axial force applied to the bolt and the nut, and a torque sensor for data detecting a torque applied to the bolt and the nut.
6. The system for testing the friction coefficient of the bolt and the nut according to claim 1, wherein the communication connection module is an upper computer, and the data acquisition module and the communication connection module are both arranged in the upper computer.
7. The bolt-and-nut friction coefficient testing system of claim 1, wherein the error compensation system comprises an error compensation database, a data matching system, and a compensation correction system.
8. The system of claim 7, wherein the error compensation database is configured to store error compensation data, the data matching system is configured to retrieve the error compensation data based on initial parameters of the bolt and nut, and the compensation correction system is configured to perform error compensation on the computational evaluation system.
9. The screw-nut friction coefficient testing system according to claim 1, wherein the friction coefficient calculating system comprises a data communication unit for transmitting detection data of the sensing system and a calculating unit for calculating the friction coefficient of the screw-nut.
10. The system for testing the friction coefficient of the bolt and the nut according to claim 1, wherein the reliability evaluation system comprises a data compensation unit, an evaluation judging unit and an output display unit, wherein the data compensation unit is used for carrying out data compensation on the data acquisition module, the evaluation judging unit is used for carrying out evaluation judgment on the reliability of the bolt and the nut, and the output display unit is used for carrying out output display on a friction coefficient diagram of the bolt and the nut and an evaluation judging result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310804683.5A CN116698730A (en) | 2023-07-03 | 2023-07-03 | Bolt and nut friction coefficient test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310804683.5A CN116698730A (en) | 2023-07-03 | 2023-07-03 | Bolt and nut friction coefficient test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116698730A true CN116698730A (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310804683.5A Pending CN116698730A (en) | 2023-07-03 | 2023-07-03 | Bolt and nut friction coefficient test system |
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| CN (1) | CN116698730A (en) |
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2023
- 2023-07-03 CN CN202310804683.5A patent/CN116698730A/en active Pending
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