CN113358950A - Integrated loading test system for electric actuating mechanism - Google Patents
Integrated loading test system for electric actuating mechanism Download PDFInfo
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- CN113358950A CN113358950A CN202110540688.2A CN202110540688A CN113358950A CN 113358950 A CN113358950 A CN 113358950A CN 202110540688 A CN202110540688 A CN 202110540688A CN 113358950 A CN113358950 A CN 113358950A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention relates to an integrated loading test system for an electric actuating mechanism, which can apply load torque to the electric actuating mechanism and test the current, voltage, execution time and angle of the electric actuating mechanism. The program-controlled direct-current power supply supplies power to the electric actuating mechanism, the precision adjustable fixture clamps the tested electric actuating mechanism, the load simulation device applies given torque to the electric actuating mechanism, collected torque signals, angle signals and the like are converted into voltage and current signals to be conditioned and transmitted to the industrial personal computer, the industrial personal computer controls the starting and stopping of the tested electric actuating mechanism and the load torque value, and meanwhile data are stored and analyzed to generate a test report. The invention has the advantages of high automatic testing degree, novel and reasonable mechanical structure, reliable and efficient electrical connection, friendly and flexible man-machine interaction, adjustable loading torque, rapid data storage and analysis, greatly reduced cost of manpower and material resources for detection and effectively improved testing efficiency of the electric actuating mechanism.
Description
Technical Field
The invention relates to the field of mechanical electronics, in particular to an integrated loading test system for an electric actuating mechanism.
Background
At present, the test equipment of the electric actuating mechanism mainly comprises a special tester and an oscilloscope, and the electric actuating mechanism is loaded fussy and heavy. The electric actuating mechanism needs different testing equipment to complete comprehensive performance parameter testing and loading testing, so that the manual participation degree is high, the testing efficiency is low, the testing precision and the testing accuracy are low, and the testing data are dispersed among the testing equipment and are not easy to store and analyze.
Disclosure of Invention
The invention mainly aims to provide an integrated loading test system for an electric actuating mechanism, and aims to realize the integrated loading test system which has the advantages of high automatic test degree, novel and reasonable mechanical structure, reliable and efficient electrical connection, friendly and flexible man-machine interaction, adjustable loading torque, rapid data storage and analysis, greatly reduced cost of manpower and material resources for detection and effectively improved efficiency of the electric actuating mechanism.
The technical scheme of the invention is as follows:
an integrated load testing system for an electric actuator comprising: the test bench comprises a test bench structure, a base, a support adjusting mechanism, a load simulation device, a torque sensor, an electric actuating mechanism, an angle sensor, a precision adjustable fixture, an industrial personal computer and a program-controlled direct-current power supply;
the load simulation device, the torque sensor and the electric actuating mechanism are fixed on a base through a supporting and adjusting mechanism, and the base is fixed on the table top of the test bench structure;
the load simulation device and the rotating shaft of the torque sensor, the torque sensor and the rotating shaft of the electric actuating mechanism, and the electric actuating mechanism and the rotating shaft of the angle sensor are respectively fixed through a precision adjustable fixture;
the precise adjustable fixture is used for enabling the load simulation device to be coaxial with the axis of the electric actuating mechanism; the angle sensor is used for detecting the rotation angle of the rotating shaft of the electric actuating mechanism;
an industrial personal computer and a program-controlled direct-current power supply are arranged in the test bench structure;
the industrial personal computer collects and records torque information collected by the torque sensor and corner information collected by the angle sensor;
the program-controlled direct-current power supply is used for supplying power to the electric actuating mechanism.
The test bench structure is designed with a stainless steel test bench surface as a basic platform for testing.
The load simulation device is used as a braking mechanism; the electric actuator is used as a measured object.
The torque sensor and the angle sensor are used for testing the applied torque value and the applied angle value respectively.
A multifunctional data acquisition card and a counter card are inserted into a PCI expansion slot of the industrial personal computer and are used for monitoring and acquiring multi-path direct current voltage signals of a torque sensor and an angle sensor, a torque value threshold and an operation power-on time threshold are set, once the torque value threshold and the operation power-on time threshold are exceeded, the power supply of an electric actuating mechanism is directly cut off, and the motion is stopped.
The programmable direct-current power supply can set the output voltage of the programmable direct-current power supply, select power supply to be forward power supply or reverse power supply, and monitor the power supply time of the power supply in real time through the timing control circuit.
The program-controlled direct-current power supply monitors the power supply time of the power supply in real time, and the test system cuts off the power supply when the power supply time is more than 2S.
Preferably, the method further comprises the following steps: a power switch box;
the power switch box comprises a quick-stop switch which is used as an emergency operation button to cut off the power supply of the motor and the power supply of the motor mechanism.
The industrial computer includes: an operating system and loading software;
the industrial personal computer has the functions of: the test device comprises a simulation load test function, an electrical signal test function, a data storage function and a data query function; meanwhile, the industrial personal computer can judge the qualification of the product according to the qualification criterion and automatically generate a test report.
Compared with the prior art, the invention has the beneficial effects that:
according to the integrated loading test system for the electric actuating mechanism, the mechanism test equipment is connected with a power supply to supply power to the electric actuating mechanism to drive the motor mechanism to rotate, and the voltage and the consumed current output by the power supply are monitored, recorded and displayed while the power supply drives the motor to work. The motor mechanism load capacity testing device is characterized in that a torque sensor, an angle sensor and a load simulation device are connected to an output shaft of a motor structure through a rigid connection device, a set damping torque is applied by controlling the load simulation device in the working process of a motor, the testing of the motor mechanism load capacity is completed, and the magnitude of the applied torque is monitored and fed back by the torque sensor. The industrial personal computer sends an instruction to the load simulation device through the acquired sensor signal, so that the quick response and the accurate control of the motor of the electric actuating mechanism are realized, the fixed-point loading and the whole-course test from locked rotor (the motor still outputs torque when the rotating speed is zero) to idle (the running state of the motor when the motor is in no load) of the motor in the electric actuating mechanism are realized, and the performance curve of the electric actuating mechanism is automatically generated. Based on the principle, compared with the existing test equipment, the integrated loading test system for the electric actuating mechanism can realize the verification test of multiple indexes such as signal voltage and current, conversion time, on-resistance of a travel switch, off-insulation resistance, motor on-load and off-load conversion time, output shaft rotating angle, output torque capacity of an output shaft and the like of the electric actuating mechanism, avoid low efficiency and high cost caused by high manual participation and improve the accuracy of a measurement result.
Drawings
FIG. 1 is a schematic structural design diagram of a mechanical testing device of an integrated loading testing system for an electric actuator according to a preferred embodiment of the present invention;
FIG. 2 is a front view of a load simulator and a torque angle measurement unit of an integrated load testing system for an electric actuator in accordance with a preferred embodiment of the present invention;
FIG. 3 is a schematic electrical connection diagram of an integrated load testing system for electric actuators, according to a preferred embodiment of the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3, an embodiment of an integrated loading test system for an electric actuator according to the present invention is provided, which can perform a performance test for the electric actuator so as to detect an operating condition of the electric actuator. The invention comprises the following steps: the test bench comprises a test bench structure 10, a base 11, a support adjusting mechanism 12, a load simulation device 21, a torque sensor 31, an electric actuating mechanism 22, an angle sensor 32, a precision adjustable fixture 23, an industrial personal computer 41, a display 42 with a touch screen, a program-controlled direct-current power supply 51, a power switch box 52, a signal adjusting box 60 and an accessory box 70.
The test bench structure 10 is designed with a stainless steel test bench as a basic platform for testing.
The load simulator 21, the torque sensor 31 and the electric actuator 22 are fixed on the base 11 through the supporting and adjusting mechanism 12, and the base 11 is fixed on the table top of the test bench structure 10; the test bench structure 10 and the support adjusting mechanism 12 provide mechanical electronic platform support for equipment such as the load simulator 21 and the like;
the load simulator 21 and the rotating shaft of the torque sensor 31, the torque sensor 31 and the rotating shaft of the electric actuator 22, and the electric actuator 22 and the rotating shaft of the angle sensor 32 are respectively fixed through a precision adjustable fixture 23; the load simulator 21 functions as a braking mechanism; the electric actuator 22 is a measured object; the base 11 is assembled with a supporting adjusting mechanism 12 and fixed on the test bench structure 10;
the precision adjustable fixture 23 is used for enabling the load simulator 21 to be coaxial with the axis of the electric actuator 22; the angle sensor 32 is used for detecting the rotation angle of the rotation shaft of the electric actuator 22;
the precision adjustable fixture 23 provides a fixing fixture for the motor of the electric actuating mechanism, the running support of the load simulation unit and the angle and moment sensors of the moment and angle measurement unit;
the torque sensor 31 and the angle sensor 32 are used for testing a torque value and an angle value of an applied load respectively;
an industrial personal computer 41, a program-controlled direct-current power supply 51, a signal conditioning box 60 and an accessory box 70 are arranged in the test bench structure 10; the test bench structure 10 mainly plays a role of supporting a test bench surface and building a platform for the test bench surface, and meanwhile, an industrial personal computer 41, a program-controlled direct-current power supply 51, a signal conditioning box 60, an accessory box 70 and the like are centralized in the inner space of the test bench surface; the bottom wheel with heavy bearing, wide wheel and locking is used as a support, so that the reliability of the wheel of the equipment is ensured, and the test equipment is convenient to move and lock. The display 42 with the touch screen is used as an attachment of the industrial personal computer 41 to realize man-machine interaction; the program-controlled direct current power supply 51 completes the electrification of the positive and negative polarities of the motor structure and monitors the power supply time of the power supply in real time; a conditioning circuit and various signal processing circuits are integrated in the signal conditioning box 60; the accessory box 70 integrates various accessory devices.
The industrial personal computer 41 is used as a control computer for collecting multi-path direct current voltage signals and exchanging data with the remote control computer through the Ethernet;
the industrial personal computer 41 collects and records the torque information collected by the torque sensor 31 and the corner information collected by the angle sensor 32 so as to perform system analysis and complete all system management and control functions, including display interface, parameter setting, and safety monitoring and initialization of the system. A multifunctional data acquisition card and a counter card are inserted into a PCI expansion slot of the industrial personal computer 41 and are used for monitoring and acquiring multipath direct-current voltage signals of the torque sensor and the angle sensor, and a torque value threshold and an operation power-on time threshold are set so as to ensure that once the torque value threshold and the operation power-on time threshold are exceeded, the power supply of the electric actuating mechanism 22 is directly cut off and the movement is stopped; and is provided with a display with a touch screen, a mouse, a keyboard and other human-computer interaction equipment; meanwhile, data exchange is carried out through the Ethernet and the remote control computer.
The program-controlled direct current power supply 51 is used for supplying power to the electric actuating mechanism 22, the program-controlled direct current power supply 51 can set the output voltage of the program-controlled direct current power supply, the power supply is selected to be positive power supply or reverse power supply, the power supply time of the power supply is monitored in real time through the timing control circuit, the power supply is cut off by the testing system when the power supply time is more than 2S, and the timing precision can reach 0.1 ms. Meanwhile, the in-place condition and the rotation angle of the motor are automatically monitored, so that voltage and current tests and manual tests of the rotation angle in the working process of the motor mechanism can be realized.
The power switch box 52 includes an emergency stop switch as an emergency operation button to disconnect the motor power supply and the motor mechanism power supply. And the power supply button is used as a power supply main switch of the computer, the torque motor controller and the power supply. And the motor button is used as a power line power supply switch of the motor.
The invention designs the power switch box as an emergency operation button, which can cut off the power supply of the motor and the power supply of the motor mechanism. The invention drives the torque motor to drive the tested electric actuating mechanism to rotate through the loading controller. The invention integrates the testing of various parameters of the electric actuating mechanism, and has wider testing coverage and high automation degree.
Examples
In this embodiment, the test bench structure 10 builds a platform for loading the test device. The load simulator 21, the torque sensor 31, the electric actuator 22 and the angle sensor 32 are fixed in the axial direction by the precision adjustable fixture 23, the load simulator 21, the torque sensor 31 and the electric actuator 22 are fixed in the respective vertical direction by the three support adjusting mechanisms 12, the support adjusting mechanisms 12 are fixed on the base 11, and the base 11 is fixed on the test bench structure 10. The precision adjustable fixture 23 can ensure that the axis of the electric actuator 22 is completely consistent with the axis of the load simulator 21 through mechanical fine adjustment, so as to improve the accuracy of project measurement.
In the present embodiment, the test stage structure 10 simultaneously concentrates the industrial personal computer 41, the programmable dc power supply 51, the signal conditioning box 60, the accessory box 70, and the like in the internal space thereof. The test bench structure 10 uses heavy-duty, wide-wheel, locked bottom wheels as supports, ensuring the reliability of the wheels of the equipment, facilitating the movement of the test equipment and the locking after reaching the installation position.
In the embodiment, the supporting and adjusting structure 12 is installed on the base 11 and used for fixedly installing the torque motor 21, the torque sensor 31 and the like, and the supporting and adjusting structure 12 has certain strength and rigidity and can ensure the stability of movement and the test precision in the test process; the tested electric actuator 22, the angle sensor 32 and the torque sensor 31 are fixed on the supporting and adjusting mechanism 12 through the supporting and adjusting mechanism 12 and the precision adjustable fixture 23, and are rigidly connected with a rotating shaft of the tested electric actuator 22, and the rotation of the rotating shaft and the rotating part of the sensor are synchronous in precision, so that the accurate measurement of the rotating angle can be realized.
In this embodiment, as shown in fig. 2, the precision adjustable fixture 23 ensures that the axis of the electric actuator 22 is completely coincident with the axis of the load simulator 21. The load simulation device 21 simulates a required torque load by using a torque motor, after the electric execution mechanism 22 and related tools are fixedly installed, loading software running on the industrial personal computer 41 sends a loading command (force or displacement) to the load simulation device 21, the load simulation device 21 calls a corresponding motion control program according to the command, outputs a corresponding driving signal to the torque motor, and transmits the load torque to the electric execution mechanism 22. The braking action of the load simulator 21 is mainly realized by a torque motor and loading control hardware in the load simulator, the rotation and locking of the detection shaft are controlled, the torque detection is realized by a torque sensor 31 arranged on a shaft system, and the angle detection is realized by an angle sensor 32 arranged on the shaft system.
Referring to fig. 3, the electrical connection of the integrated loading test system for the electric actuator of the present invention includes a power supply system for supplying power to each module, a torque loading unit for performing loading, an industrial personal computer for controlling a load loading device, a sensor module for collecting various signals, a signal conditioning circuit for processing and analyzing the collected signals, and an electric actuator to be tested. After the external power supply is input, the power is respectively supplied to the industrial personal computer, the electric actuating mechanism, the signal conditioning box and other modules through the control of the power switch box and the conversion of the direct-current power supply. Working voltage and consumed current of the electric actuating mechanism during working are converted into direct current voltage by adopting isolated direct current voltage and current sensors, and then the direct current voltage and the direct current voltage are sent to a multifunctional data acquisition card for acquisition.
The load simulation device conditions the torque and angle signals transmitted back by the torque and angle measurement unit and transmits the signals to the industrial personal computer. The industrial personal computer collects signals transmitted back by various sensors, analyzes and processes the signals, and sends out instructions to set load torque through the load controller and set the start and stop of the motor of the tested electric actuating mechanism through the signal conditioning circuit. The industrial personal computer is provided with a display with a touch screen, a mouse, a keyboard and other human-computer interaction equipment, and simultaneously performs data exchange with the remote control computer through the Ethernet. In order to ensure the safety of the electric actuating mechanism, a moment value threshold and an operation electrifying time threshold are set on hardware by monitoring signals of a moment sensor and an angle sensor so as to ensure that once the signals exceed the safety value threshold, the power supply of a driver of a motor of the tested electric actuating mechanism is directly cut off, and the motion actuating unit is stopped.
The industrial personal computer comprises an operating system and loading software, and the two functional modules of the simulation load testing function and the electrical signal testing function are relatively independent. The industrial personal computer also comprises the functions of data storage, data query, interpretation of the qualification of the product according to qualification criteria, automatic generation of test reports and the like.
The program-controlled direct-current power supply supplies power to the electric actuating mechanism, the power supply time of the power supply is monitored in real time through the timing control circuit, the power supply is cut off by the test system when the power supply time is larger than 2S, and meanwhile, the in-place condition and the rotation angle of the motor are automatically monitored.
The signal conditioning box is internally integrated with a conditioning circuit and various signal processing circuits, and comprises a motor power supply control board, an accurate timing control circuit, a direct current voltage current sensor and the like, wherein the motor power supply control board consists of a polarity switch array.
The power switch box comprises a quick-stop switch which is used as an emergency operation button to cut off the power supply of the motor and the power supply of the motor mechanism. And the power supply button is used as a power supply main switch of the computer, the torque motor controller and the power supply. And the motor button is used as a power line power supply switch of the motor.
The integrated loading test system for the electric actuating mechanism is high in automatic test degree, novel and reasonable in mechanical structure, reliable and efficient in electrical connection, friendly and flexible in man-machine interaction, adjustable in loading torque, capable of rapidly storing and analyzing data, greatly reduces the cost of manpower and material resources for detection, and effectively improves the test efficiency of the electric actuating mechanism.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the drawings and the content of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (9)
1. An integrated load testing system for an electric actuator, comprising: the device comprises a test bench structure (10), a base (11), a support adjusting mechanism (12), a load simulation device (21), a torque sensor (31), an electric actuating mechanism (22), an angle sensor (32), a precision adjustable fixture (23), an industrial personal computer (41) and a program-controlled direct-current power supply (51);
the load simulation device (21), the torque sensor (31) and the electric actuating mechanism (22) are fixed on the base (11) through the supporting and adjusting mechanism (12), and the base (11) is fixed on the table top of the test bench structure (10);
the load simulator (21) and the rotating shaft of the torque sensor (31), the torque sensor (31) and the rotating shaft of the electric actuating mechanism (22), and the electric actuating mechanism (22) and the rotating shaft of the angle sensor (32) are respectively fixed through a precision adjustable fixture (23);
the precision adjustable fixture (23) is used for enabling the load simulator (21) to be coaxial with the axis of the electric actuating mechanism (22); the angle sensor (32) is used for detecting the rotating angle of the rotating shaft of the electric actuator (22);
an industrial personal computer (41) and a program-controlled direct-current power supply (51) are arranged in the test bench structure (10);
the industrial personal computer (41) records the torque information acquired by the torque sensor (31) and the corner information acquired by the angle sensor (32), and analyzes and processes the torque information and the corner information; meanwhile, an industrial personal computer (41) sends out an instruction to set the load torque through a load controller and set the start and stop of a motor of the tested electric actuating mechanism through a signal conditioning circuit;
the programmable direct current power supply (51) is used for supplying power to the electric actuating mechanism (22).
2. The integrated load test system for electric actuators according to claim 1, characterized in that the test bench structure (10) is designed with a stainless steel test bench as a basic platform for testing.
3. The integrated loading test system for the electric actuating mechanism according to claim 1, characterized in that the load simulator (21) is used as a braking mechanism, and the load simulator (21) adopts a torque motor to simulate a required torque load; the electric actuator (22) is used as a measured object.
4. An integrated load testing system for electric actuators according to any of claims 1-3, characterized by a torque sensor (31) and an angle sensor (32) for testing the applied torque value and angle value, respectively.
5. The integrated loading test system for the electric actuator according to claim 4, characterized in that a multifunctional data acquisition card and a counter card are inserted into a PCI expansion slot of the industrial personal computer (41) for monitoring and acquiring multiple DC voltage signals of the torque sensor (31) and the angle sensor (32), setting a torque value threshold and an operation power-on time threshold, and directly cutting off the power supply of the electric actuator (22) once the safety value threshold is exceeded, and terminating the motion.
6. The integrated loading test system for the electric actuator according to claim 5, wherein the programmable DC power supply (51) is capable of setting an output voltage of the programmable DC power supply, selecting the power supply as a forward power supply or a reverse power supply, and monitoring the power supply time of the power supply in real time through a timing control circuit.
7. The integrated loading test system for the electric actuator according to claim 6, wherein the programmable DC power supply (51) monitors the power supply time in real time, and the test system cuts off the power supply when the power supply time is greater than 2S.
8. The integrated load test system for electric actuators of claim 7, further comprising: a power switch box (52);
the power switch box (52) includes an emergency stop switch as an emergency operation button for disconnecting the motor power supply and the motor mechanism power supply.
9. The integrated loading test system for electric actuators according to claim 8, characterized in that the industrial control computer (41) comprises: an operating system and loading software;
the functions of the industrial personal computer (41) comprise: the test device comprises a simulation load test function, an electrical signal test function, a data storage function and a data query function; meanwhile, the industrial personal computer (41) can judge and read the qualification of the product according to the qualification criterion and automatically generate a test report.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110540688.2A CN113358950A (en) | 2021-05-18 | 2021-05-18 | Integrated loading test system for electric actuating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110540688.2A CN113358950A (en) | 2021-05-18 | 2021-05-18 | Integrated loading test system for electric actuating mechanism |
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| CN202110540688.2A Pending CN113358950A (en) | 2021-05-18 | 2021-05-18 | Integrated loading test system for electric actuating mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115096566A (en) * | 2022-06-15 | 2022-09-23 | 江苏皓日汽车零部件有限公司 | Novel pneumatic program-controlled overload test bench |
| CN115267596A (en) * | 2022-07-25 | 2022-11-01 | 北京安达维尔航空设备有限公司 | Comprehensive inspection tester for electric mechanism |
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