CN209656861U - A kind of test device for low temperature electric machine and low-temperature linear mould group - Google Patents
A kind of test device for low temperature electric machine and low-temperature linear mould group Download PDFInfo
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- CN209656861U CN209656861U CN201920235384.3U CN201920235384U CN209656861U CN 209656861 U CN209656861 U CN 209656861U CN 201920235384 U CN201920235384 U CN 201920235384U CN 209656861 U CN209656861 U CN 209656861U
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- low temperature
- low
- mould group
- linear mould
- simulation box
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Abstract
The utility model discloses a kind of test devices for low temperature electric machine and low-temperature linear mould group, including bracket, rack-mount low temperature simulation box and erecting bed, active servo motor is installed on erecting bed, cryogenerator and grating detector are provided on low temperature simulation box, cryogenerator includes the liquid nitrogen source being arranged in outside low temperature simulation box and the evaporator that is mounted in low temperature simulation box, bottom is provided with tested motor in low temperature simulation box, linear mould group mounting base, the main shaft of active servo motor is towards tested motor, linear mould group mounting base, dynamic torque sensor is installed on transmission shaft.It being capable of the effective working condition of simulated machine and linear mould group at low ambient temperatures, accurately detect the performances such as the linear precision of tested motor torque at low ambient temperatures and linear mould group, and reachable -150 DEG C of lowest temperature environment, and cool down rapidly and efficiently, temperature is stablized.
Description
Technical field
The utility model relates to Motor Measuring Technology fields, more particularly to one kind to be used for low temperature electric machine and low-temperature linear mould group
Test device.
Background technique
The executing agency of low temperature specific type of electric machine, low-temperature linear mould group as Cryo Equipment is mainly used for automating at deep cooling
The power device of equipment and cryogenic environment manipulator is managed, low-temperature working environment temperature can reach -150 DEG C.
For the performance indicator of test motor and mould group under low temperature environment (- 150 DEG C~-60 DEG C), guarantee motor operation
Reliability and environmental suitability need to be stored, dynamic torque, holding torque, stiction, positioning accurate under profound hypothermia environment
Reliability tests, the existing electric machine testing devices such as degree can only realize the test of -60 DEG C of environment, be unable to reach -150 DEG C of test-strips
Part.
Utility model content
The utility model is intended to provide a kind of test device for low temperature electric machine and low-temperature linear mould group, very good solution
The above problem, structure is simple, easy to use, being capable of effective simulated machine and linear mould group work at low ambient temperatures
State accurately detects the performances such as the linear precision of tested motor torque at low ambient temperatures and linear mould group, and minimum
Reachable -150 DEG C of warm environment, and cool down rapidly and efficiently, heat insulation effect is good, and temperature is stablized.
The technical solution of the utility model is a kind of test device for low temperature electric machine and low-temperature linear mould group, feature
It is: including bracket, rack-mount low temperature simulation box and erecting bed, active servo electricity is installed on the erecting bed
Machine, cryogenerator and grating detector are provided on the low temperature simulation box, and the cryogenerator includes being arranged in low temperature
Liquid nitrogen source outside simulation box and the evaporator being mounted in low temperature simulation box, the liquid nitrogen source and evaporator pass through liquid nitrogen pipe and connect
It connects, bottom is provided with tested motor, linear mould group mounting base, the main shaft court of the active servo motor in the low temperature simulation box
To tested motor, linear mould group mounting base, the active servo electric machine main shaft by transmission shaft pass through low temperature simulation box tank wall with
Tested motor main shaft in tested motor, straight line mounting base is connected, and is equipped with dynamic torque sensor on the transmission shaft.
Further, low temperature thermal insulation board is coated in the low temperature simulation box.
Further, the low temperature simulation box front side wall is provided with insulated door, is provided with observation window on the insulated door.
Further, temperature sensor is installed in the low temperature simulation box.
Further, the temperature sensor is mounted on motor, in linear mould group mounting base.
Further, line bank is provided in the low temperature simulation box.
Further, the grating detector includes being mounted on grating scale at the top of low temperature simulation box and vertical with grating scale
The grating scale connecting rod of connection, the grating scale are arranged in parallel with tested motor main shaft, and the grating scale connecting rod is arranged straight down.
Further, solenoid valve is provided on the liquid nitrogen source.
It further, further include controller, the controller is used to control temperature and tested electricity in low temperature simulation box
The torque of machine, displacement detection.
Further, the controller communication link is connected to torque sensor, temperature sensor and grating scale, the controller
Control is connected with solenoid valve, servo-driver and step actuator.
The beneficial effects of the utility model are:
1. the utility model, which cools down to low temperature simulation box using liquid nitrogen source, carries out the simulation of low temperature environment, cooling rate is fast,
And temperature keeps effect good, while limiting temperature can reach -150 DEG C, this is that existing electromechanical testing platform is inaccessiable；
2. the utility model uses step actuator and servo-driver, stepper motor can be tested, can also test and watch
Take motor, accurate testing multiplicity；
3. the utility model is also provided with grating scale on low temperature simulation box and carries out displacement detecting, low-temperature linear mould is realized
The measurement of linear precision when group work；
4. the utility model carries out the simulation of low temperature using liquid nitrogen, -150 DEG C of limiting temperature is reached, while at one
Stepper motor under low temperature environment, the torque of servo motor and linear mould group straight-line displacement precision etc. are realized in test device
Measurement, integrated level is high, and measurement accuracy is high.
Detailed description of the invention
Fig. 1 is the utility model structural front view；
Fig. 2 is the schematic diagram of the section structure in Fig. 1 at A-A；
Fig. 3 is the utility model structure top view；
Fig. 4 is the utility model structural side view；
Fig. 5 is the utility model schematic perspective view；
Fig. 6 is the utility model control flow schematic diagram；
In figure: 1. brackets, 2. low temperature simulation boxes, 21. evaporators, 22. liquid nitrogen pipes, 23. tested motors, the installation of linear mould group
Seat, 24. tested motors, 25. low temperature thermal insulation boards, 26. insulated doors, 27. observation windows, 28. temperature sensors, 29. line banks, 210.
Grating scale, 211. grating scale connecting rods, 3. erecting beds, 31. active servo motors, 32. transmission shafts, 33. dynamic torque sensors.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation or be constructed and operated in a specific orientation, therefore it should not be understood as limiting the present invention.In addition, term
" first ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；Of course, can also be mechanical connection, it is also possible to be electrically connected；In addition, it can also be and be connected directly, be also possible to
Indirectly connected through an intermediary, or it can be connection inside two elements.For those of ordinary skill in the art and
Speech, can understand the concrete meaning of above-mentioned term in the present invention as the case may be.
As shown in Figures 1 to 6, the utility model provides a kind of test dress for low temperature electric machine and low-temperature linear mould group
It sets, it is characterised in that: including bracket 1, the low temperature simulation box 2 and erecting bed 3 that are mounted on bracket 1, installed on the erecting bed 3
There is active servo motor 31, cryogenerator and grating detector, the cryogenerator are provided on the low temperature simulation box 2
Including the liquid nitrogen source being arranged in outside low temperature simulation box 2 and the evaporator 21 being mounted in low temperature simulation box 2, the liquid nitrogen source and steaming
Hair device 21 is connected by liquid nitrogen pipe 22, and bottom is provided with tested motor, linear mould group mounting base 23 in the low temperature simulation box 2,
The main shaft of the active servo motor 31 is towards tested motor, linear mould group mounting base 23,31 main shaft of active servo motor
2 tank wall of low temperature simulation box is passed through by transmission shaft 32 to be connected with 24 main shaft of tested motor in tested motor, straight line mounting base 23,
Dynamic torque sensor 33 is installed on the transmission shaft 32.
It is coated with low temperature thermal insulation board 25 in the low temperature simulation box 2, insulation effectively is carried out to low temperature simulation box 2.
2 front side wall of low temperature simulation box is provided with insulated door 26, is provided with observation window 27 on the insulated door 26.The low temperature simulation
Temperature sensor 28 is installed in case 2.The temperature sensor 28 is mounted on motor, in linear mould group mounting base 23.It is described low
Line bank 29 is provided in warm simulation box 2.
The grating detector includes being mounted on the grating scale 210 at the top of low temperature simulation box 2 and vertical with grating scale 210 connecting
The grating scale connecting rod 211 connect, the grating scale 210 are arranged in parallel with 24 main shaft of tested motor, and the grating scale connecting rod 211 is vertical
It is down-set.Solenoid valve is provided on the liquid nitrogen source.
1 bottom of bracket is additionally provided with universal wheel, facilitates the flexible movement of entire test device.
Further include controller, the controller be used to control temperature and tested motor in low temperature simulation box torque,
The detection of displacement.The controller communication link is connected to torque sensor, temperature sensor and grating scale, and the controller control connects
It is connected to solenoid valve, servo-driver and step actuator.
Testing process under specific low temperature environment are as follows:
Industrial personal computer is connect by RS485 bus with active servo driver, torque sensor, temperature sensor, industrial personal computer
It is connect by Ethernet with motion control card, the input of motion control card encoder is anti-with the incremental encoder of active servo driver
Feedback output.The instruction output of motion control card pulse direction is connect with the driver of tested stepper motor or tested servo motor.
When performances such as the torques for needing to detect low temperature electric machine, it is only necessary to by tested motor be fixedly mounted on tested motor,
It is then that the main shaft of tested motor is coaxially connected by the main shaft of transmission shaft and active servo motor in linear mould group mounting base
.When needing to detect the linear precision of linear mould group, it is only necessary to which linear mould group is fixedly mounted on two tested motors, lines
In property mould group mounting base.
Active servo driver is set as torque mode by host computer, and sets torque value, outside output torque, as mould
Quasi- load.Tested motor works in velocity mode or mode position.
Host computer acquires torque sensor current value in real time, reads currently practical torque, and adjusts servo-driver torque
Setting value.
The real-time temperature collection sensor current value of host computer controls liquid nitrogen valve by the digital output mouth of motion control card
Door state adjusts working chamber interior environment temperature.
It is connect by the slide unit of linear mould group with displacement sensor grating scale, the output of grating scale incremental encoder is controlled with movement
Fabrication connection, obtains the straight-line displacement of linear mould group.
By the position setting value and active servo driver rotary encoder value of feedback of pulse command, tested motor is determined
Rotational positioning precision and carrying load ability.
By grating scale encoder feedback value, determine by the linear motion positioning accuracy and bringing onto load energy of linear mould group
Power.
The output torque of tested motor is inadequate, carrying load ability is inadequate, rotational positioning precision is inadequate, linear mould group machinery adds
Work precision is inadequate, and the command pulse value of the encoder feedback value and sending that all motion control card can be caused to receive mismatches or exceeds
Deviation threshold.Industrial personal computer, host computer are controller.
The utility model, which cools down to low temperature simulation box using liquid nitrogen source, carries out the simulation of low temperature environment, and cooling rate is fast, and
Temperature keeps effect good, while limiting temperature can reach -150 DEG C, this is that existing electromechanical testing platform is inaccessiable；This
Utility model uses step actuator and servo-driver, can test stepper motor, can also test servo motor, test essence
Quasi- multiplicity；The utility model is also provided with grating scale on low temperature simulation box and carries out displacement detecting, realizes low-temperature linear mould group
The measurement of linear precision when work；The utility model carries out the simulation of low temperature using liquid nitrogen, has reached -150 DEG C of limiting temperature,
Stepper motor under low temperature environment, the torque of servo motor and linear mould group straight line position are realized in a test device simultaneously
The measurement of precision etc. is moved, integrated level is high, and measurement accuracy is high.
Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence
In the case of, those skilled in the art can make various corresponding changes and modifications, but these phases according to the utility model
The change and modification answered all should belong to the protection scope of the utility model the attached claims.
Claims (10)
1. a kind of test device for low temperature electric machine and low-temperature linear mould group, it is characterised in that: including bracket, be mounted on bracket
On low temperature simulation box and erecting bed, active servo motor is installed on the erecting bed, is provided on the low temperature simulation box
Cryogenerator and grating detector, the cryogenerator include the liquid nitrogen source being arranged in outside low temperature simulation box and are mounted on low
Evaporator in warm simulation box, the liquid nitrogen source are connected with evaporator by liquid nitrogen pipe, and bottom is arranged in the low temperature simulation box
Have a tested motor, linear mould group mounting base, the main shaft of the active servo motor towards tested motor, linear mould group mounting base,
The active servo electric machine main shaft is passed through tested on low temperature simulation box tank wall and tested motor, straight line mounting base by transmission shaft
Electric machine main shaft is connected, and is equipped with dynamic torque sensor on the transmission shaft.
2. the test device according to claim 1 for low temperature electric machine and low-temperature linear mould group, it is characterised in that: described
Low temperature thermal insulation board is coated in low temperature simulation box.
3. the test device according to claim 1 for low temperature electric machine and low-temperature linear mould group, it is characterised in that: described
Low temperature simulation box front side wall is provided with insulated door, is provided with observation window on the insulated door.
4. the test device according to claim 1 for low temperature electric machine and low-temperature linear mould group, it is characterised in that: described
Temperature sensor is installed in low temperature simulation box.
5. the test device according to claim 4 for low temperature electric machine and low-temperature linear mould group, it is characterised in that: described
Temperature sensor is mounted on motor, in linear mould group mounting base.
6. the test device according to claim 1 for low temperature electric machine and low-temperature linear mould group, it is characterised in that: described
Line bank is provided in low temperature simulation box.
7. the test device according to claim 4 for low temperature electric machine and low-temperature linear mould group, it is characterised in that: described
Grating detector include be mounted on grating scale at the top of low temperature simulation box and with grating scale grating scale connecting rod connected vertically, it is described
Grating scale is arranged in parallel with tested motor main shaft, and the grating scale connecting rod is arranged straight down.
8. the test device according to claim 7 for low temperature electric machine and low-temperature linear mould group, it is characterised in that: described
Solenoid valve is provided on liquid nitrogen source.
9. the test device according to claim 8 for low temperature electric machine and low-temperature linear mould group, it is characterised in that: also wrap
Controller is included, the controller is used to control the detection of the torque of temperature and tested motor in low temperature simulation box, displacement.
10. the test device according to claim 9 for low temperature electric machine and low-temperature linear mould group, it is characterised in that: institute
It states controller communication link and is connected to torque sensor, temperature sensor and grating scale, the controller control is connected with solenoid valve, watches
Take driver and step actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920235384.3U CN209656861U (en) | 2019-02-25 | 2019-02-25 | A kind of test device for low temperature electric machine and low-temperature linear mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920235384.3U CN209656861U (en) | 2019-02-25 | 2019-02-25 | A kind of test device for low temperature electric machine and low-temperature linear mould group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209656861U true CN209656861U (en) | 2019-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920235384.3U Active CN209656861U (en) | 2019-02-25 | 2019-02-25 | A kind of test device for low temperature electric machine and low-temperature linear mould group |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109669123A (en) * | 2019-02-25 | 2019-04-23 | 中固维科（成都）动力技术有限公司 | A kind of test device for low temperature electric machine and low-temperature linear mould group |
-
2019
- 2019-02-25 CN CN201920235384.3U patent/CN209656861U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109669123A (en) * | 2019-02-25 | 2019-04-23 | 中固维科（成都）动力技术有限公司 | A kind of test device for low temperature electric machine and low-temperature linear mould group |
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