CN212872797U - Motor load working characteristic test system - Google Patents
Motor load working characteristic test system Download PDFInfo
- Publication number
- CN212872797U CN212872797U CN202021811156.5U CN202021811156U CN212872797U CN 212872797 U CN212872797 U CN 212872797U CN 202021811156 U CN202021811156 U CN 202021811156U CN 212872797 U CN212872797 U CN 212872797U
- Authority
- CN
- China
- Prior art keywords
- motor
- test
- load
- torque
- measuring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a motor load working characteristic test system, the test system includes a force measuring device, a control force measuring device, a load device and a control device, the force measuring device and the control force measuring device are respectively arranged at two sides of a tested motor and are used for testing the torque force at the upper end and the lower end of the tested motor, the load device is connected with the control force measuring device and is used for providing load for the tested motor, the control device is respectively electrically connected with the tested motor and the load device and is used for controlling the start and stop of the tested motor and the output axial force of the load device, the test system can realize the effect of changing the load of the tested motor by changing the output axial force of the load device, can also carry out the motor load characteristic test under special environmental conditions (high and low temperature, vacuum and the like), and can continuously change the load size of the tested motor by continuously adjusting and controlling the output axial force of the load device, the test of different load performance of the tested motor is completed, and the continuous test of the load characteristic of the tested motor can be realized.
Description
Technical Field
The utility model belongs to the technical field of the test of motor laboratory, concretely relates to motor load operating characteristic test system.
Background
With the wide application of micro motors and the improvement of the degree of fine application of system equipment to motors under different environmental conditions, providing different environmental conditions of micro motors, particularly load characteristics under different temperatures or vacuum conditions, is very important. Due to the influence factors such as motor structure and materials, the high and low temperature characteristic theoretical calculation and the actual performance of the micro motor may have larger deviation, and the performance actual measurement of the micro motor in different environments such as high temperature and low temperature is needed because only the theoretical calculation is provided and the actual use requirement cannot be met.
Under normal environmental conditions, as shown in fig. 3 and 4, the motor can perform load characteristic tests in a manner of adding a hanging weight to a load disk, using a dynamometer, and the like. The test mode is simple to install and adjust, has no test error caused by an additional mechanism, and generally has higher test precision.
At present, two testing methods are generally adopted for testing the load characteristics under the conditions of high and low temperature, vacuum and the like: firstly, high low temperature, vacuum test box output switching shaft, the motor tests after being connected with the outer dynamometer of proof box through the switching shaft that runs through the box, as shown in fig. 5. In the testing method, as the dynamic sealing device is added at the transmission connecting part of the through box, the resisting moment of a dynamic sealing device and the additional torque connected by the tool are larger, the resistance moment is likely to approach or exceed the testing load, and the testing error of a motor with small load is larger, so that the motor characteristic cannot be truly reflected; secondly, load test is carried out through a weight hanging method of a motor output shaft and a torque test disc, performance test of only one load point can be carried out after one weight hanging in a test box, continuous test cannot be carried out, test time is long, and test results can be influenced by uncertainty existing in the test process.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a motor load working property test system, this test system can carry out the light load working property to the motor under special environment (high low temperature, vacuum etc.) and carry out the continuous test, changes the different output axial force of load device through controlling means, can realize testing the characteristic of being surveyed the motor in succession, accurately, high-efficiently.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a motor load working characteristic test system, motor load working characteristic test system includes: the force measuring device is arranged on one side of the motor to be measured, the motor to be measured is arranged on the test bench, and the force measuring device is used for detecting the torque force of the motor to be measured at the end of the force measuring device; the control force measuring device is arranged on the other side of the measured motor and used for detecting the torque force of the measured motor at the end of the control force measuring device; the load device is arranged on one side of the control force measuring device and used for providing load for the motor to be measured; and the control device is electrically connected with the tested motor and the load device respectively and is used for executing the sent command.
According to the above-mentioned motor load operation characteristic test system, as a preferable aspect, the test stand includes: a test base for supporting the test system; the test fixing frame is arranged on one side of the test base and used for fixing the tested motor and preventing the tested motor from moving; the test supporting rod is arranged opposite to the test base and used for fixing the force measuring device.
According to the above-mentioned motor load operating characteristic test system, as a preferred scheme, the test fixing frame includes: the cross section of the test bracket bottom plate is concave, and the test bracket bottom plate is arranged below the tested motor and used for supporting the tested motor; the cross section of the test support upper pressure plate is concave, the test support upper pressure plate is arranged above the tested motor, and the test support upper pressure plate is arranged opposite to the test support bottom plate; and the fixed pressing plate bolt is used for connecting the test support base plate and the test support upper pressing plate to prevent the tested motor from moving.
According to the above-mentioned motor load operating characteristic test system, as a preferred scheme, the force measuring device includes: and one end of the first dynamometer is fixedly installed on the test bench, and the other end of the first dynamometer is connected with the tested motor through a test connecting rope and used for testing the torque force of the tested motor.
According to the above-mentioned motor load operating characteristic test system, as a preferred scheme, the control force measuring device includes: and one end of the second dynamometer is connected with the load device, the other end of the second dynamometer is connected with the tested motor through a test connecting rope, and the second dynamometer is used for testing the torque force of the tested motor.
According to the above-mentioned motor load operating characteristic test system, as a preferred scheme, a torque test disc is arranged on an output shaft of a tested motor, and the torque test disc includes: the torque testing connection disc and the torque testing disc nut; the whole cone type that is of torque test connection pad, be provided with the recess along circumference on the torque test connection pad, and the periphery is provided with the external screw thread, the hole has been seted up at the center of torque test connection pad, the inside of torque test dish nut is interior toper, and inside is provided with the internal thread, torque test dish nut with torque test connection pad threaded connection, torque test connection pad has inserted the output shaft of being surveyed the motor.
According to the motor load working characteristic testing system, as an optimal scheme, the force measuring device and the control force measuring device are connected on the same straight line through the test connecting rope.
According to the above-described motor load operation characteristic test system, preferably, the first dynamometer and the second dynamometer are pointer dynamometers or digital display type push-pull dynamometers.
According to the above-mentioned motor load operation characteristic test system, as a preferable aspect, the control device includes: the controller is electrically connected with the load device and is used for controlling the magnitude of the axial output force of the load device; the controller is electrically connected with the tested motor and is used for controlling the start and stop of the tested motor;
according to the motor load working characteristic testing system, as a preferable scheme, the load device is a speed reducing motor with a lead screw, and the lead screw is connected with the control force measuring device.
Compared with the closest prior art, the utility model provides a technical scheme has following excellent effect:
the utility model provides a motor load working characteristic test system, the first dynamometer and the second dynamometer in this test system keep on the same straight line through the experimental connection rope, have guaranteed the true and effective of being surveyed motor torque power, and load device operation output axial force to adjust the tensile force size of experimental connection rope, realize changing the effect of being surveyed motor load, the utility model discloses test system can carry out motor area load characteristic test at special environmental condition (high low temperature, vacuum etc.), and the motor and the load device that are surveyed are directly connected, have avoided the influence of the additional moment of equipment of putting through the case to test the precision; the output force of the load device is continuously adjusted and controlled, the load of the tested motor can be continuously changed, the performance tests of different loads of the tested motor are completed, and the continuous test of the load characteristics of the motor can be realized.
Description of the drawings:
fig. 1 is a schematic structural diagram of a test system in an embodiment of the present invention;
FIG. 2 is a schematic structural view of a torque testing plate according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a load tray and hanging weight test device in a normal environment of a conventional micro-motor;
FIG. 4 is a schematic diagram of a dynamometer testing device of a conventional micro-motor under a normal environment;
fig. 5 is a schematic structural diagram of a testing device in a conventional micro-motor test chamber.
In the figure: 1. a test support base plate; 2. pressing a test support upper press plate; 3. fixing the pressure plate bolt; 4. testing the connecting rope; 5. testing the supporting rod; 6. a force measuring device; 7. a motor to be tested; 8. the output shaft of the tested motor; 9. a torque test disc; 10. a weight; 11. a test chamber; 12. a switching disk; 13. a box penetrating connecting shaft; 14. penetrating a box moving sealing element; 15. a dynamometer; 16. controlling the force measuring device; 17. a load device; 18. a test base; 19. a test box adapter device; 20. a control device; 21. a nut for a torque test disc; 22. and (6) testing the connecting disc by torque.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention. In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and does not require that the present invention must be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. The terms "connected" and "connected" used in the patent of the present invention should be understood in a broad sense, and may be, for example, fixed or detachable; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
As shown in FIG. 1, the present invention provides a motor load performance testing system, which can be placed in a test box 11 during application, and is suitable for various large and small load tests, especially for small load performance tests, where small load generally refers to a load performance test below 1N.m, the test system comprises a force measuring device 6, a control force measuring device 16, a load device 17 and a control device 20, wherein the tested motor 7 is fixedly arranged on a test bench to prevent the torque of the tested motor 7 from being measured, so that the tested motor 7 moves to cause the deviation of the test result, the force measuring device 6 is arranged at one side of the tested motor 7, the torque force of the tested motor 7 at the end of the force measuring device 6 is detected, and the control force measuring device 16 is arranged at the other side of the tested motor 7 and is used for detecting the torque force of the tested motor 7 at the end of the control force measuring device 16; the force measuring device 6 and the control force measuring device 16 in the embodiment of the utility model are respectively arranged at the upper and lower sides of the tested motor 7 and are respectively used for testing the tension force at the upper and lower ends of the tested motor 7; the load device 17 is arranged below the control force measuring device 16 and is used for providing loads for the motor 7 to be measured and providing different torques for the motor 7 to be measured by providing different loads; the control device 20 is electrically connected with the tested motor 7 and the load device 17 and is used for controlling the magnitude of the axial output force of the load device 17 and the start and stop of the tested motor 7.
The method comprises the following steps that a force measuring device 6 and a control force measuring device 16 are respectively installed at two ends of a tested motor 7, the force measuring device and the control force measuring device 16 are connected together through a test connecting rope 4, the force measuring device 6, an output shaft of the tested motor 7 and the control force measuring device 16 are connected on the same straight line through the test connecting rope 4 in the test process, a load device 17 is connected with the control force measuring device 16 and provides a load for a test system, the control device 20 is used for electrifying the load device 17 and the tested motor 7, in the electrifying operation process of the tested motor 7, the product of the difference value between the force measuring device 6 and the control force measuring device 16 and the radius of a groove of a tested torque test connecting disc 22 is the output torque of the tested motor 7, and the control device 20 can also adjust the output torque of the tested motor 7 by adjusting the output force of the load device 17; the utility model provides a by survey motor 7 and load device 17 lug connection, avoided equipment to wear out proof box 11, cause the influence to moment measuring accuracy, through the output power of continuous adjustment load device 17, but the load size of continuous change by survey motor 7 accomplishes the test to the different load performance of being surveyed motor 7.
Furthermore, in order to fixedly mount the tested motor 7, the embodiment of the utility model is also provided with a test bench, the test bench comprises a test base 18, a test fixing frame and a test supporting rod 5, the test base 18 is used for supporting the test system, specifically a load device 17 is fixedly mounted on the test base 18, so as to avoid displacement when providing load for the tested motor 7; the test fixing frame is arranged above the test base 18 and used for fixing the tested motor 7, the test supporting rod 5 and the test base 18 are arranged oppositely, the test supporting rod 5 and the test base 18 are respectively arranged above and below the tested motor 7, and the test supporting rod 5 is provided with a force measuring device.
The embodiment of the utility model provides an in experimental mount include experimental support bottom plate 1, experimental support top board 2 and fixed clamp plate bolt 3, experimental support bottom plate 1 all is the spill with experimental support top board 2's cross section, it is low in the middle of the arc surface and both ends height promptly, it fixes in experimental support bottom plate 1 and experimental support top board 2's circular arc to be surveyed motor 7, during the installation, experimental support bottom plate 1 places with experimental support top board 2 relatively, and be in the same place both fixed connection with fixed clamp plate bolt 3, it is in the lower between the two to be surveyed motor 7, the removal of being surveyed motor 7 has effectively been avoided, the outward appearance of being surveyed motor 7 has still been protected simultaneously.
Further, for the torque of conveniently testing the motor that is surveyed, the embodiment of the utility model provides an in the top installation measuring force device 6 of being surveyed the motor, measuring force device 6 includes first dynamometer, the one end of first dynamometer and 5 fixed connection of test support pole in the test bench, the other end through experimental connection rope 4 with be connected by survey motor output shaft 8, the torque power of first dynamometer test 7 upper ends of being surveyed.
Further, for the test by the torque of motor below and be connected with load device 17, the embodiment of the utility model provides an in still be provided with control measuring device 16, control measuring device 16 includes the second dynamometer, and the one end and the load device 17 of second dynamometer carry out fixed connection, and the other end passes through experimental connection rope 4 and is connected by motor output shaft 8, and the second dynamometer is used for testing the torque power of motor 7 lower extreme.
The embodiment of the utility model provides an in purpose of first dynamometer and second dynamometer all is used for the dynamometry, and dynamometry instrument between them can be the same, also can be different, preferably pointer dynamometer or digital display formula push-pull dynamometer, pointer dynamometer adopt to indicate to produced pulling force, and the reading is convenient, accurate, the measuring accuracy is high, and digital display formula push-pull dynamometer adopts digital display's mode to show the pulling force of production, and is higher to the sensitivity of pulling force, changes in accurate pulling force value, the utility model discloses an embodiment is not limited to this, in other embodiments, adopts other types of dynamometer also can.
Further, as shown in fig. 2, in order to ensure the effective connection between the test connecting rope 4 and the force measuring device 6 and the control force measuring device 16, the output shaft of the tested motor 7 in the embodiment of the present invention is provided with a torque testing disc 9, the center of the torque testing disc 9 is provided with an inner hole, the output shaft 8 of the tested motor is inserted into the inner hole of the torque testing disc 9, because the output torque of the tested motor 7 is smaller, the material of the torque testing disc 9 is preferably an aluminum alloy material, the aluminum alloy material is lighter than other metals, and can reduce the influence on the torque of the tested motor 7, the torque testing disc 9 in the embodiment of the present invention comprises a torque testing disc nut 21 and a torque testing connecting disc 22, the torque testing connecting disc 22 is integrally tapered, the torque testing connecting disc 22 is provided with a groove along the circumferential direction, and the outer thread is arranged on the outer circumferential direction, the center of, the torque test disc nut 21 is internally tapered and internally provided with internal threads, the test connecting rope 4 is embedded into the groove, the test connecting rope 4 is preferably a polyester nylon thread, and is further preferably a fine polyester nylon thread, the diameter of the fine polyester nylon thread can be selected from 0.3mm to 1.0mm (such as 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm and 0.9mm) according to the load size, the fine polyester nylon thread is light in texture, the influence on the torque of the tested motor 7 can be ignored, the torque testing connection disc 22 is fixedly connected with the output shaft of the tested motor 7, the test connection rope 4 is wound in the groove on the torque testing connection disc 22, the torque testing disc nut 21 is sleeved on the output shaft 8 of the tested motor, the torque testing connection disc 22 is fixed on the output shaft 8 of the tested motor, and the torque testing connection disc 22 is prevented from being loosened in the testing process.
Further, bear different loads for guaranteeing to be surveyed on the motor output shaft 8, the embodiment of the utility model provides a still be provided with load device 17, load device 17 is the gear motor who takes the lead screw, be used for to test system output axial force, the lead screw is steady output axial force under gear motor's rotation, be connected through experimental connection rope 4 between the lower extreme of second dynamometer and gear motor's the lead screw, during the installation, the one end of experimental connection rope 4 with install on the second dynamometer, the other end is connected on gear motor's lead screw, provide different loading power for test system according to the size that changes gear motor axial force.
Further, for convenient control load device 17 and being surveyed motor 7, the embodiment of the utility model provides a still be provided with controlling means 20, controlling means 20 includes the controller, load device 17 is connected and is surveyed motor 7 to the controller electricity, the controller is according to received instruction, control is surveyed opening of motor 7 and is stopped and adjust the size of load device 17 output torque, when test system installs in proof box 11, the controller is placed outside proof box 11, the conductor wire that is connected by the gear motor among motor 7 and the load device 17 of being surveyed draws out outside proof box 11 and is connected with the controller through the proof box switching device 19 of installing on the proof box lateral wall.
After the controller receives the pressure adjusting instruction signal, the speed reducing motor with the screw rod is controlled to operate, axial force is output, the tensile force of the test connecting rope 4 is adjusted through a torque testing disc acted on the tested motor by the test connecting rope 4, and performance tests of different loads of the tested motor 7 are changed.
The utility model discloses test system not only can use under natural condition, but also can the accurate characteristic test of test motor under the special environment (high low temperature, vacuum etc.) condition of proof box 11, and the motor 7 under test is directly connected with the load, has avoided wearing the influence of case equipment additional moment to the measuring accuracy; by continuously adjusting the output force of the load device 17, the load of the tested motor 7 can be continuously changed, and different load performance tests of the tested motor 7 are completed.
The foundation the utility model discloses, still provide a motor load working property test method, this test method includes following step:
s1, sequentially mounting the force measuring device 6, the measured motor 7, the control force measuring device 16 and the load device 17 on a test bench;
the tested motor 7 is fixedly arranged on the test bench, the first dynamometer in the force measuring device 6 is fixedly arranged on the test support rod 5, and the second dynamometer in the force measuring device 16 is controlled to be connected with a lead screw of a speed reducing motor in the load device 17 through the test connecting rope 4.
S2, connecting the force measuring device 6 and the control force measuring device 16 together through the test connecting rope 4 and keeping the same straight line;
the one end and the first dynamometer of experimental connection rope 4 are connected, after straightening around the round in the recess of the torque test dish 9 of being surveyed the motor, and the other end and the second dynamometer of experimental connection rope 4 are connected, and first dynamometer and second dynamometer pass through experimental connection rope 4 and keep on same straight line in the test process.
S3, the control device 20 starts the load device 17 and the tested motor 7;
the speed reducing motor and the tested motor 7 are started through the controller, and after the controller receives a pressure instruction signal, the controller controls the lead screw on the speed reducing motor to output corresponding axial force so as to meet the pressure instruction requirement.
S4, the control device 20 adjusts the output torque of the tested motor 7 by adjusting the axial force output by the load device 17;
the output torque of the tested motor 7 is adjusted by adjusting the axial force output of the screw rod, and the product of the difference value of the force measuring device 6 and the control force measuring device 16 and the groove radius of the torque test disc of the tested motor in the electrifying operation process of the tested motor is the output torque of the tested motor.
The testing method can be based on the motor load working characteristic testing system. The test system can be placed in the proof box, can be according to different environmental conditions, dispose the proof box and satisfy the characteristic test, for example configure into the proof box of high temperature environment, the proof box of low temperature environment, the proof box of vacuum environment, when environmental condition is normal environmental condition, can not dispose the proof box.
To sum up, the utility model provides a motor load working characteristic test system, first dynamometer and second dynamometer among this test system keep on the same straight line through experimental connection rope 4, have guaranteed the true validity of 7 torque forces of measured motor, and load device 17 operates output axial force to adjust the tensile force size of experimental connection rope 4, realize changing the effect of 7 loads of measured motor, the utility model discloses test system can carry out the motor load characteristic test at special environmental condition (high and low temperature, vacuum etc.), and measured motor 7 and load device 17 are directly connected, have avoided the influence of the equipment additional moment of punch-through box to test the precision; by continuously adjusting and controlling the output force of the load device 17, the load of the tested motor 7 can be continuously changed, the performance tests of different loads of the tested motor 7 are completed, and the continuous test of the load characteristics of the motor can be realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the following claims are intended to cover all modifications, equivalents, and improvements falling within the spirit and principles of the present invention.
Claims (11)
1. A motor load operating characteristic testing system, comprising:
the force measuring device is arranged on one side of the motor to be measured, the motor to be measured is arranged on the test bench, and the force measuring device is used for detecting the torque force of the motor to be measured at the end of the force measuring device;
the control force measuring device is arranged on the other side of the measured motor and used for detecting the torque force of the measured motor at the end of the control force measuring device;
the load device is arranged on one side of the control force measuring device and used for providing load for the motor to be measured;
and the control device is electrically connected with the tested motor and the load device respectively and is used for executing the sent command.
2. The motor load operating characteristic testing system of claim 1, wherein the test stand comprises:
a test base for supporting the test system;
the test fixing frame is arranged on one side of the test base and used for fixing the tested motor and preventing the tested motor from moving;
the test supporting rod is arranged opposite to the test base and used for fixing the force measuring device.
3. A motor load performance characteristic testing system according to claim 2, wherein said test fixture comprises:
the cross section of the test bracket bottom plate is concave, and the test bracket bottom plate is arranged below the tested motor and used for supporting the tested motor;
the cross section of the test support upper pressure plate is concave, the test support upper pressure plate is arranged above the tested motor, and the test support upper pressure plate is arranged opposite to the test support bottom plate;
and the fixed pressing plate bolt is used for connecting the test support base plate and the test support upper pressing plate to prevent the tested motor from moving.
4. The motor load performance characteristic testing system of claim 1, wherein the force measuring device comprises:
and one end of the first dynamometer is fixedly installed on the test bench, and the other end of the first dynamometer is connected with the tested motor through a test connecting rope and used for testing the torque force of the tested motor.
5. The motor load performance characteristic testing system of claim 1, wherein the control force measuring device comprises:
and one end of the second dynamometer is connected with the load device, the other end of the second dynamometer is connected with the tested motor through a test connecting rope, and the second dynamometer is used for testing the torque force of the tested motor.
6. A motor load operation characteristic testing system according to claim 1, wherein a torque testing disc is provided on an output shaft of the motor to be tested, the torque testing disc comprising: the torque testing connection disc and the torque testing disc nut;
the whole cone type that is of torque test connection pad, be provided with the recess along circumference on the torque test connection pad, and the periphery is provided with the external screw thread, the hole has been seted up at the center of torque test connection pad, the inside of torque test dish nut is interior toper, and inside is provided with the internal thread, torque test dish nut with torque test connection pad threaded connection, torque test connection pad has inserted the output shaft of being surveyed the motor.
7. The motor load performance characteristic testing system of claim 1, wherein the force measuring device and the control force measuring device are connected in-line by a test connection cord.
8. The motor load performance characteristic testing system of claim 4, wherein the first dynamometer is an analog dynamometer or a digital display type push-pull dynamometer.
9. A motor load operation characteristic testing system according to claim 1, wherein said control means comprises:
the controller is electrically connected with the load device and is used for controlling the magnitude of the axial output force of the load device;
the controller is electrically connected with the motor to be tested and is used for controlling the starting and stopping of the motor to be tested.
10. The motor load performance characteristic testing system of claim 9, wherein the load device is a speed reduction motor having a lead screw connected to the control force measuring device.
11. The motor load performance characteristic testing system of claim 5, wherein the second dynamometer is an analog dynamometer or a digital display push-pull dynamometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021811156.5U CN212872797U (en) | 2020-08-26 | 2020-08-26 | Motor load working characteristic test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021811156.5U CN212872797U (en) | 2020-08-26 | 2020-08-26 | Motor load working characteristic test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212872797U true CN212872797U (en) | 2021-04-02 |
Family
ID=75190416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021811156.5U Active CN212872797U (en) | 2020-08-26 | 2020-08-26 | Motor load working characteristic test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212872797U (en) |
-
2020
- 2020-08-26 CN CN202021811156.5U patent/CN212872797U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210741740U (en) | Calibration device for torque sensor | |
| CN102519716A (en) | Test stand for performance of linear electromechanical actuator | |
| CN2809617Y (en) | Dynamic balance tester for air compressing impeller with blind hole | |
| CN201974439U (en) | Rotating speed and moment measurement instrument | |
| CN104007386A (en) | Comprehensive offline test platform of generator rotor insulation measurement device | |
| CN212872797U (en) | Motor load working characteristic test system | |
| CN111896870A (en) | Motor load working characteristic testing system and method | |
| CN113686682A (en) | Online detection device for base film of solar backboard and working method of online detection device | |
| CN209961882U (en) | Special electric dynamometer of new energy automobile and control system | |
| CN210603718U (en) | Self-balancing large-torque sensor calibration device | |
| CN207717804U (en) | A kind of wheel speed calibrating installation | |
| CN212932341U (en) | Friction coefficient testing machine | |
| CN102288403A (en) | Tensioning wheel torque test device | |
| CN202886105U (en) | Platform for testing engine thrust of aerostat | |
| CN113188643B (en) | Calibrating device of large-scale electronic hanging scale | |
| CN212559000U (en) | Main hoisting winch rope lining wearing and tearing volume rapid detection device | |
| CN210005245U (en) | gearbox transmission efficiency detection device | |
| CN112540005A (en) | Experimental device and experimental method for measuring tensile strength of rock through centrifugal loading | |
| CN201323536Y (en) | Pre-pressure automatic control device for ultrasonic motor | |
| CN108956275A (en) | A kind of Minitype electronic tension tester | |
| CN220912206U (en) | Concentricity detection device for on-axis encoder hole | |
| CN211291848U (en) | Torque gauge | |
| CN108918119B (en) | Automobile flywheel disc quality balance detection tool | |
| CN210533888U (en) | Testing machine | |
| CN217032311U (en) | Testing device for measuring depth of single-pile embedded seabed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |