CN111089742A - Novel high-low temperature driving mechanism real-time performance test bench - Google Patents
Novel high-low temperature driving mechanism real-time performance test bench Download PDFInfo
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- CN111089742A CN111089742A CN201911349587.6A CN201911349587A CN111089742A CN 111089742 A CN111089742 A CN 111089742A CN 201911349587 A CN201911349587 A CN 201911349587A CN 111089742 A CN111089742 A CN 111089742A
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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
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- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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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
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Abstract
A novel high-low temperature driving mechanism real-time performance test bench belongs to the technical field of environmental tests and comprises a cryogenic high-temperature test box, a driving control system and a performance test system; the cryogenic high-temperature test box is used for providing a cryogenic high-temperature environment, is connected with an external bracket and is provided with a test adapter cable for signal transmission; the drive control system is used for driving a product motor, controlling the force and moment loading module, acquiring the measurement results of loading moment and rotating speed, and processing and displaying the measurement results; the performance testing system is used for thrust loading, is used for measuring the loading torque and the rotating speed of the external claw holding mechanism, and then sends the measuring result to the signal acquisition platform. The invention can realize the loading of the moment and realize the output of the output end moment and the rotating speed of the simulated holding claw driving mechanism under different working conditions.
Description
Technical Field
The invention relates to a novel high-low temperature driving mechanism real-time performance test bench, and belongs to the technical field of environmental tests.
Background
The main task of the project of the third trimester is to develop a lunar probe to realize the soft landing of the lunar surface and the automatic sampling return. Finally, safe return of the lunar soil (sample) to the earth is realized. The docking and sample transferring mechanism product is one of main products for automatic sampling and returning, realizes docking, docking and holding between a tracking aircraft and a target aircraft and automatic transferring tasks of sample containers in a lunar orbit intersection docking task stage, and ensures that the sample containers can enter subsequent task links. The butt joint mechanism and the sample transfer product are electromechanical products with complex mechanisms, the products mainly comprise a claw holding mechanism, a transfer mechanism and the like, and a component driving mechanism provides a main part of driving capability for the mechanism. In order to examine the performance of the mechanism such as driving capability and efficiency test in the ground and space environment, a whole set of driving mechanism test equipment is needed, and the driving capability and efficiency of the claw holding driving mechanism and the driving capability and efficiency of the transfer driving mechanism are tested at normal temperature and high and low temperatures.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the novel high-low temperature driving mechanism real-time performance test bed comprises a cryogenic high-temperature test box, a driving control system and a performance test system; the cryogenic high-temperature test box is used for providing a cryogenic high-temperature environment, is connected with an external bracket and is provided with a test adapter cable for signal transmission; the drive control system is used for driving a product motor, controlling the force and moment loading module, acquiring the measurement results of loading moment and rotating speed, and processing and displaying the measurement results; the performance testing system is used for thrust loading, is used for measuring the loading torque and the rotating speed of the external claw holding mechanism, and then sends the measuring result to the signal acquisition platform.
The purpose of the invention is realized by the following technical scheme:
a novel high-low temperature driving mechanism real-time performance test bench comprises a cryogenic high-temperature test box, a driving control system and a performance test system;
the deep cooling high temperature test box comprises a test box, a working platform, an external bracket, a product transfer mechanism and a test adapter cable; the test box is used for providing a deep-cold high-temperature environment; the working platform penetrates through the test box and is connected with the external bracket; the product transferring mechanism is arranged on the working platform; the test adapter cable is arranged on the side wall of the test box and used for transmitting signals;
the drive control system is used for driving a product motor, controlling the force and moment loading module, acquiring the measurement results of loading moment and rotating speed, and processing and displaying the measurement results;
the performance testing system comprises a force and moment loading module, a linear module, a sensor component and a bracket, wherein the force and moment loading module adopts a magnetic powder brake and a hysteresis brake, the linear module converts the linear motion of a screw nut of the transfer mechanism into rotary motion, and the loading of the thrust of the screw nut is realized in a moment loading mode; the sensor component is used for measuring the loading torque and the rotating speed of the external claw-holding mechanism and then sending the measurement result to the signal acquisition platform.
Preferably, the test chamber is capable of providing a test environment temperature of-70 ℃ to +80 ℃.
Preferably, the product transfer mechanism and the force and moment loading module are connected by a through-the-box drive shaft.
Preferably, the product motor is provided with an overcurrent protection control area and consists of three circuit breakers, and when the current passing through the circuit breakers exceeds the rated current, the switch parts of the circuit breakers bounce to automatically cut off the circuit.
Preferably, the sensor component sends the measurement result to the signal acquisition platform in a TTL level manner.
Compared with the prior art, the invention has the following beneficial effects:
the novel high-low temperature driving mechanism real-time performance test bench provided by the invention can realize the loading of torque (including pulling force and pushing force) and the output of the output end torque and the rotating speed of a simulated claw holding driving mechanism under different working conditions; the power supply can supply power to the holding claw driving and transferring driving motor, the power supply voltage is DC 21V-DC 30V adjustable, the precision meets the control requirement of 0.1V, the motor can be controlled to rotate forwards or reversely, the automatic reversing control of the motor is realized, the moving speed and the displacement of a screw nut at the output end of the transferring driving mechanism can be measured and recorded by arranging the displacement sensor and the speed sensor, the opening and closing curves of two micro switches of the transferring driving mechanism can be collected and recorded, and the real-time recording detection and the data storage are realized.
Drawings
Fig. 1 is a schematic composition diagram of a novel high-low temperature driving mechanism real-time performance testing bench of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, a novel high-low temperature driving mechanism real-time performance testing bench provided in the preferred embodiment of the present invention mainly includes a cryogenic high-temperature testing box, a driving control system, and a performance testing system.
The deep cooling high temperature test box adopts a ZTD series deep cooling test box, and can provide a test environment temperature of-70 ℃ to +80 ℃. The cryogenic high-temperature test box mainly comprises a test box, a working platform, an external support, a product transfer mechanism and a test transfer cable, wherein a box door of the test box is a left-opening door, 1 observation window is arranged at the center of the box door, and 2 circular through holes and 1 cable hole are formed in the right side surface of a box body of the test box; the working platform penetrates through the box body through 4 upright posts and is connected with the external bracket; the product transfer mechanism comprises 2 sets of transmission mechanisms which are arranged on the working platform; the test adapter cable is arranged on the side wall of the test box and used for transmitting and measuring related signals.
The drive control system mainly comprises a product motor drive control device, a magnetic powder brake control device, a hysteresis brake control device, a signal acquisition platform and a data processing and displaying platform, and is used for motor motion control, sensor signal acquisition, data processing and display.
The performance test system mainly comprises a force and moment loading module, a linear module, a sensor component and a bracket, wherein the force and moment loading module adopts a ZKB-5XN type magnetic powder brake of Mitsubishi motor company and a ZHY-10A type magnetic hysteresis brake of Mitsubishi motor company, the linear module adopts a KK60 type of Mitsubishi motor company in Taiwan, the linear module converts the linear motion of a screw nut of a transfer mechanism into rotary motion, and the thrust loading of the screw nut is realized in a moment loading mode; the sensor part mainly comprises a torque sensor, a push-pull force sensor, an angle encoder and a grating ruler, and is used for measuring indexes such as loading torque, rotating speed and the like of the claw holding mechanism, and signals of the sensors are transmitted to a signal acquisition platform of the drive control system in a TTL level mode and are used for post-stage data processing and display.
The connection relationship of the systems is as follows:
the outer bracket of the deep cooling high-temperature test box and the bracket of the torque loading module of the performance test system are the same; the product transfer mechanism in the deep cooling high-temperature test box is respectively connected with the force and moment loading device in the performance test system through a box penetrating transmission shaft; and the test adapter cable in the cryogenic test box is connected with the drive control system through the cable hole.
Preferably, the product motor drive control device mainly comprises a case, a modular power supply, a signal processing and motor control circuit, a motor drive module group, a digital voltmeter and a control switch.
Preferably, the case is made of aluminum alloy materials, and the front panel is a power supply display area, an overcurrent protection control area, a motor control area and a power supply control area; the power supply display area consists of three digital voltmeters of Shanxi cooperative company and respectively displays execution power supply voltage and control power supply voltage; the overcurrent protection control area consists of 3 circuit breakers of ETA company, and when the current passing through the circuit breakers exceeds the rated current, the switch parts of the circuit breakers bounce to automatically cut off the circuit, thereby playing the function of overcurrent protection; the motor control area is mainly composed of a claw holding mechanism motor control and a transfer mechanism motor control; the motor control area is composed of a motor control part of a claw holding mechanism and a motor control part of a transfer mechanism, when the drive control box is switched into a manual mode, the motors are controlled by selecting switches in the motor control area, in addition, each motor control area displays the running state of each switch quantity sensor and the position judgment state of the mechanism, and each moving motor of the mechanism can be correctly controlled manually by referring to the running state of the mechanism fed back by a potentiometer sensor of each motor, which is reacted on a control computer; the power control area mainly comprises an execution power button, a control power button, a PC/manual switching button and an emergency stop button, and a main power control switch is used for realizing power control of the drive control box. The sensor used for collecting the motor current is an HDC-25SY series Hall current sensor of Asahi company in Nanjing, the sensor supplies power for +/-15V, and a 4V +/-1% voltage signal is generated by Hall principle induction. Each sensor is respectively connected with the 27V power end of the corresponding motor control module, the current of the motor in actual work is reflected by testing the current of the 27V driving power line of each module, the signal output is connected with the analog signal acquisition board of the signal acquisition platform, and the current signal of the motor is acquired.
Preferably, the information acquisition platform mainly comprises a PCI-6229 and a PCI-6509 data acquisition card of NI company, corresponding acquisition adapter boards and cables, and is used for acquiring communication signals of all components in the test equipment and state signals of the sensors, conditioning the signals and transmitting the conditioned signals to the data processing and display platform. The main technical indexes of the PCI-6229 are 32-path analog input, 4-path analog output, a sampling rate of 250K and 16-bit resolution. PCI-6509 is a 96-channel bidirectional input output (5V TTL/CMOS), has high current driving capability and can be used for programming an input filter. Can meet the requirement of simultaneously acquiring and controlling the states of 3 motors.
Preferably, the data processing and displaying platform mainly comprises an input and output device such as an industrial control computer of the porphyry IPC610 type and an industrial display, and is used for processing and displaying the data of the signals transmitted by the signal processing platform and the controller.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (5)
1. A novel high-low temperature driving mechanism real-time performance test bench is characterized by comprising a cryogenic high-temperature test box, a driving control system and a performance test system;
the deep cooling high temperature test box comprises a test box, a working platform, an external bracket, a product transfer mechanism and a test adapter cable; the test box is used for providing a deep-cold high-temperature environment; the working platform penetrates through the test box and is connected with the external bracket; the product transferring mechanism is arranged on the working platform; the test adapter cable is arranged on the side wall of the test box and used for transmitting signals;
the drive control system is used for driving a product motor, controlling the force and moment loading module, acquiring the measurement results of loading moment and rotating speed, and processing and displaying the measurement results;
the performance testing system comprises a force and moment loading module, a linear module, a sensor component and a bracket, wherein the force and moment loading module adopts a magnetic powder brake and a hysteresis brake, the linear module converts the linear motion of a screw nut of the transfer mechanism into rotary motion, and the loading of the thrust of the screw nut is realized in a moment loading mode; the sensor component is used for measuring the loading torque and the rotating speed of the external claw-holding mechanism and then sending the measurement result to the signal acquisition platform.
2. The novel high-low temperature driving mechanism real-time performance test bed is characterized in that the test box can provide a test environment temperature of-70 ℃ to +80 ℃.
3. The novel high and low temperature driving mechanism real-time performance test bench of claim 1, wherein the product transfer mechanism and the force and moment loading module are connected through a through box transmission shaft.
4. The novel high-low temperature driving mechanism real-time performance test bench according to claim 1, wherein the product motor is provided with an overcurrent protection control area, and the overcurrent protection control area is composed of three circuit breakers, and when the current passing through the circuit breakers exceeds the rated current, the switch parts of the circuit breakers bounce to automatically cut off the circuit.
5. The new real-time performance testing bench for high and low temperature driving mechanism as claimed in claim 1, wherein said sensor component uses TTL level to send the measurement result to the signal acquisition platform.
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Cited By (2)
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| CN113640671A (en) * | 2021-09-17 | 2021-11-12 | 北京卫星环境工程研究所 | Method for testing relation between different temperature moments and currents of motor for space on-orbit maintenance |
| CN114814580A (en) * | 2022-05-09 | 2022-07-29 | 台州市产品质量安全检测研究院 | Motor dynamic parameter detection device and method |
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Application publication date: 20200501 |