CN208847822U - A kind of ultrasound electric machine life test platform - Google Patents
A kind of ultrasound electric machine life test platform Download PDFInfo
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- CN208847822U CN208847822U CN201821348479.8U CN201821348479U CN208847822U CN 208847822 U CN208847822 U CN 208847822U CN 201821348479 U CN201821348479 U CN 201821348479U CN 208847822 U CN208847822 U CN 208847822U
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Abstract
The utility model relates to a kind of ultrasound electric machine life test platforms, including pedestal, ultrasound electric machine is installed on the base, motor shaft axle sleeve is arranged on the motor shaft of ultrasound electric machine, it further include transmission shaft, one end is connect by first shaft coupling with motor shaft axle sleeve, and the other end is connected by second shaft coupling with variable load module, realizes load continuous variable by variable load module；It further include motor mounting plate, tube-in-tube structure is laid in center, and tube-in-tube structure cladding is set in first shaft coupling and is connected at position with motor shaft axle sleeve, and tube-in-tube structure, first shaft coupling and motor shaft axle sleeve three are co-axially mounted；Further include measuring mechanical characteristics module, is used to measure torque, revolving speed and temperature when ultrasound electric machine operation；The utility model solves the problems, such as that existing test platform service life as caused by using measuring accuracy caused by friction plate not high or magnetic powder brake is short.
Description
Technical field
The utility model relates to a kind of ultrasound electric machine life test platforms, belong to electromechanical testing platform field.
Background technique
Ultrasound electric machine is to realize that motor drives using the inverse piezoelectric effect of piezoelectric ceramics and the friction coupling of motor stator and rotor
A kind of dynamic novel small and special electric machine, it has, and response is fast, positioning accuracy high, low speed large torque, cuts off self-lock, not by magnetic interference
The advantages that, have in fields such as aerospace, medical instrument, precision instrumentation and new-type weapon and equipment more and more wide
Application prospect.Therefore in practical applications, can for meet job requirement, the service life of ultrasound electric machine be an important finger
Mark, particularly with more special and more demanding to the motor service life usage scenario of some loads.
In consideration of it, the life test experiment of ultrasound electric machine is for research ultrasound electric machine in specific operation life time and electricity
Stage machine life-cycle items mechanical property is most important, currently, existing life test be mostly by magnetic powder brake or by
The rubbing device that rotor forms that rubs provides load, though the magnetic powder brake energy that utility model patent 201310455638.X is proposed
More constant load is provided, but continually changing operating condition is loaded for some requirements, magnetic powder brake can be continuous due to magnetic powder
Irregular movement own temperature is changed greatly, lead to the reduction of its service life, it is real to be unable to satisfy long-term electrical machinery life
Test requirement；
The rubbing device that utility model patent 201710700274.5 proposes changes load by adjusting self friction power,
But it is serious to will lead to friction disc wear after friction plate long-term work, cannot continue to provide required frictional force, simultaneously because friction life
Heat effect can gather amount of heat on rubbing device, will cause the deformed damaged of corresponding assembly in rubbing device.
Utility model content
The utility model provides a kind of ultrasound electric machine life test platform, solves existing test platform due to using friction
The short problem of service life caused by measuring accuracy caused by piece is not high or magnetic powder brake.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of ultrasound electric machine life test platform, including pedestal, install ultrasound electric machine on the base, in the electricity of ultrasound electric machine
It is arranged motor shaft axle sleeve on arbor, further includes transmission shaft, one end is connect by first shaft coupling with motor shaft axle sleeve, the other end
It is connected by second shaft coupling with variable load module, load continuous variable is realized by variable load module；
It further include motor mounting plate, tube-in-tube structure is laid in center, and tube-in-tube structure cladding is set in first shaft coupling
It is connected at position with motor shaft axle sleeve, and tube-in-tube structure, first shaft coupling and motor shaft axle sleeve three are co-axially mounted；
Further include measuring mechanical characteristics module, is used to measure torque, revolving speed and temperature when ultrasound electric machine operation；
As the further preferred of the utility model, variable load module above-mentioned includes load wheel disc, center location
Interspersed load support axis opens up two symmetrical sliding slots in the relative load wheel disc center of circle along radial on load wheel disc, is loading
At least one eccentricity balance-weight block, and the multiple that the total number of eccentricity balance-weight block is 2 are installed in the monosymmetric sliding slot of wheel disc；
As the further preferred of the utility model, first bearing seat and are installed in load support axis above-mentioned both ends respectively
Two bearing bracket, load support axis pass through first bearing seat and second bearing seat supports；
As the further preferred of the utility model, further include 3rd bearing seat and fourth bearing seat, be separately mounted to pass
End shaft；
The tube-in-tube structure of motor mounting plate is mounted on 5th bearing seat by bearing fit；
As the further preferred of the utility model, measuring mechanical characteristics module above-mentioned includes pressure sensor, photoelectricity
The top of switch plate, optoelectronic switch and thermistor, pressure sensor is fixedly connected by screw with motor mounting plate side,
Bottom is fixed on the base by sensor stand；
Optoelectronic switch piece is mounted on transmission shaft at the shaft shoulder of fourth bearing seat by fixture nut, optoelectronic switch installation
On fourth bearing seat；
Thermistor is mounted on ultrasound electric machine；
As the further preferred of the utility model, load wheel disc and load support axis is connected by key, the length of sliding slot
For 0.4-0.8 times for loading wheel diameter；
As the further preferred of the utility model, eccentricity balance-weight block above-mentioned is cylindrical structure, and center opens up circle
Shape through-hole selects wolfram steel or the production of tungsten-copper alloy material；
An eccentricity balance-weight block is installed respectively in the load monosymmetric sliding slot of wheel disc, fixing bolt is by wherein side
Eccentricity balance-weight block passes through, and is fixedly connected by nut with other side eccentricity balance-weight block；
As the further preferred of the utility model, tube-in-tube structure above-mentioned is hollow cylindrical structure, and internal diameter is greater than
The outer diameter of first shaft coupling.
By above technical scheme, compared with the existing technology, the utility model has the following beneficial effects:
Position of the utility model by adjusting eccentricity balance-weight block in sliding slot, thus it is possible to vary eccentricity balance-weight block and loadwheel
The eccentricity of disk, torque arm length corresponding to peak torque change correspondingly, and have the function that change peak torque；
When load wheel disc and ultrasound electric machine rotate simultaneously, the horizontal distance of eccentricity balance-weight block and loadwheel disk center generates week
Phase property changes, and torque arm length corresponding to continuous variable torque also changes correspondingly, and realizes the effect of load continuous variable；
The bearing block being connected with motor mounting plate, when can eliminate the motor shaft of ultrasound electric machine and being connect with shaft coupling, super
The eccentric twisting amount generated between the motor shaft and transmission shaft of acoustic-electric machine, makes motor shaft reach concentric with transmission shaft, reduces because partially
The heart is to error caused by measuring mechanical characteristics.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the overall structure diagram of the ultrasound electric machine life test platform of the preferred embodiment of the utility model；
Fig. 2 is the forward sight partial cutaway structural representation of the ultrasound electric machine life test platform of the preferred embodiment of the utility model
Figure；
Fig. 3 is the load wheeling disk structure signal of the ultrasound electric machine life test platform of the preferred embodiment of the utility model
Figure；
Fig. 4 is the eccentricity balance-weight block structural representation of the ultrasound electric machine life test platform of the preferred embodiment of the utility model
Figure；
Fig. 5 is the motor mounting plate structural representation of the ultrasound electric machine life test platform of the preferred embodiment of the utility model
Figure.
In figure: 1 is first bearing seat, and 2 be load wheel disc, and 3 be eccentricity balance-weight block, and 4 be second bearing seat, and 5 be second
Axis device, 6 be 3rd bearing seat, and 7 be transmission shaft, and 8 be fourth bearing seat, and 9 be optoelectronic switch piece, and 10 be optoelectronic switch, and 11 be the
Five bearing blocks, 12 be motor mounting plate, and 13 be screw, and 14 be ultrasound electric machine, and 15 be thermistor, and 16 be pressure sensor, 17
It is pedestal for sensor stand, 18,19 be first shaft coupling, and 20 be motor shaft axle sleeve, and 21 be load support shaft, and 22 be sliding slot,
23 be circular through hole, and 24 be tube-in-tube structure.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
As Figure 1-Figure 5, the utility model includes following characteristics component: 1 is first bearing seat, and 2 be to load wheel disc, 3
It is second bearing seat for eccentricity balance-weight block, 4,5 be second shaft coupling, and 6 be 3rd bearing seat, and 7 be transmission shaft, and 8 be fourth bearing
Seat, 9 be optoelectronic switch piece, and 10 be optoelectronic switch, and 11 be 5th bearing seat, and 12 be motor mounting plate, and 13 be screw, and 14 be ultrasound
Motor, 15 be thermistor, and 16 be pressure sensor, and 17 be sensor stand, and 18 be pedestal, and 19 be first shaft coupling, and 20 are
Motor shaft axle sleeve, 21 be load support shaft, and 22 be sliding slot, and 23 be circular through hole, and 24 be tube-in-tube structure.
Shown in Fig. 1-Fig. 2, a kind of ultrasound electric machine life test platform of the utility model, including pedestal, pacify on the base
Ultrasound electric machine is filled, shown in Fig. 5, motor shaft axle sleeve is arranged on the motor shaft of ultrasound electric machine, further includes transmission shaft, one end passes through
First shaft coupling is connect with motor shaft axle sleeve, and the other end is connected by second shaft coupling with variable load module, by variable
Load blocks realize load continuous variable；
It further include motor mounting plate, tube-in-tube structure is laid in center, and tube-in-tube structure cladding is set in first shaft coupling
It is connected at position with motor shaft axle sleeve, and tube-in-tube structure, first shaft coupling and motor shaft axle sleeve three are co-axially mounted；
Further include measuring mechanical characteristics module, is used to measure torque, revolving speed and temperature when ultrasound electric machine operation；
Shown in Fig. 3-Fig. 4, as the further preferred of the utility model, variable load module above-mentioned includes loadwheel
Disk, center location intert load support axis, symmetrical along radially two relative load wheel disc centers of circle are opened up on load wheel disc
Sliding slot, load the monosymmetric sliding slot of wheel disc at least one eccentricity balance-weight block, and the total number of eccentricity balance-weight block are installed
For 2 multiple；
When loading wheel disc and ultrasound electric machine rotates coaxially, the horizontal distance of eccentricity balance-weight block and loadwheel disk center can not
Disconnected cyclically-varying at any time, while the torque that eccentricity balance-weight block generates also constantly changes, it is specific in real work to meet
Working condition requirement.
As the further preferred of the utility model, first bearing seat and are installed in load support axis above-mentioned both ends respectively
Two bearing bracket, load support axis pass through first bearing seat and second bearing seat supports；
As the further preferred of the utility model, further include 3rd bearing seat and fourth bearing seat, be separately mounted to pass
End shaft；
The tube-in-tube structure of motor mounting plate is mounted on 5th bearing seat by bearing fit；It is opened up not on motor mounting plate
With the mounting hole of size, motor shaft is that plug-in type is connect with motor shaft axle sleeve, can easily replace the ultrasound of installation different model
Motor；Motor shaft can generate eccentricity when being connected with first shaft coupling, lead to the decentraction of motor shaft and transmission shaft, thus with electricity
The connected 5th bearing seat of machine mounting plate can correct the eccentricity generated when connection, and motor shaft is made to reach concentric with transmission shaft.
As the further preferred of the utility model, measuring mechanical characteristics module above-mentioned includes pressure sensor, photoelectricity
The top of switch plate, optoelectronic switch and thermistor, pressure sensor is fixedly connected by screw with motor mounting plate side,
Bottom is fixed on the base by sensor stand；
Optoelectronic switch piece is mounted on transmission shaft at the shaft shoulder of fourth bearing seat by fixture nut, optoelectronic switch installation
On fourth bearing seat；
Thermistor is mounted on ultrasound electric machine；
As the further preferred of the utility model, load wheel disc and load support axis is connected by key, the length of sliding slot
For 0.4-0.8 times for loading wheel diameter；
As the further preferred of the utility model, eccentricity balance-weight block above-mentioned is cylindrical structure, and center opens up circle
Shape through-hole selects wolfram steel or the production of tungsten-copper alloy material；
An eccentricity balance-weight block is installed respectively in the load monosymmetric sliding slot of wheel disc, fixing bolt is by wherein side
Eccentricity balance-weight block passes through, and is fixedly connected by nut with other side eccentricity balance-weight block；Bias is moved radially by adjusting bolt to match
The eccentricity at eccentricity balance-weight block center and loadwheel disk center can be changed in the position of pouring weight, adjusts eccentricity balance-weight block institute to reach
The purpose of the peak torque of generation.
As the further preferred of the utility model, tube-in-tube structure above-mentioned is hollow cylindrical structure, and internal diameter is greater than
The outer diameter of first shaft coupling, to guarantee motor shaft, motor shaft sleeve, first shaft coupling and the normal rotation of transmission shaft.
Using above-mentioned test platform, the specific operation method is as follows:
Step 1: the motor shaft of ultrasound electric machine is inserted into motor shaft axle sleeve, and ultrasound electric machine is installed by motor
Mounting hole on plate is fixed on motor mounting plate；
Step 2: the eccentricity balance-weight block of two pieces of same sizes to be arranged symmetrically in the two sides of load wheel disc sliding slot, then will
Fixing bolt pass through eccentricity balance-weight block center circular through hole and load wheel disc, and according to requirement of actual working condition in sliding slot along diameter
To mobile fixing bolt, eccentricity is adjusted, sets maximum load torque, be then tightened nut, fixes eccentrically mounted weight
The position of block；
Step 3: giving motor speed, operating time according to specific working condition requirement and stopping duration, and pass through host computer
Slave computer is sent an instruction to, to control ultrasound electric machine work；
Step 4: starting ultrasound electric machine, in ultrasound electric machine operational process, pressure that output torque is measured by pressure sensor
Force value is fixed on the switch plate of the optoelectronic switch piece on transmission shaft multiplied by the motor shaft of ultrasound electric machine and the horizontal distance of screw hole
When with the motor shaft of ultrasound electric machine synchronous rotation, the optoelectronic switch being mounted on 5th bearing seat passes through opening for optoelectronic switch piece
The rotation for closing piece measures the speed of service of ultrasound electric machine, and ultrasound electric machine temperature is surveyed by the thermistor being tightly attached on motor housing
?；Above data is shown by host computer and synchronizes storage in a computer, super to analyze while carrying out life test
The variation of every mechanical property in sound motor operation course.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in the application fields.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
The meaning of "and/or" described herein refers to that the case where respective individualism or both exists simultaneously wraps
Including including.
The meaning of " connection " described herein can be between component be directly connected to be also possible to pass through between component
Other components are indirectly connected with.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (8)
1. a kind of ultrasound electric machine life test platform, including pedestal, install ultrasound electric machine on the base, in the motor of ultrasound electric machine
Motor shaft axle sleeve is arranged on axis, it is characterised in that: further include transmission shaft, one end is connected by first shaft coupling and motor shaft axle sleeve
It connects, the other end is connected by second shaft coupling with variable load module, realizes load continuous variable by variable load module；
It further include motor mounting plate, tube-in-tube structure is laid in center, and tube-in-tube structure cladding is set in first shaft coupling and electricity
Arbor axle sleeve is connected at position, and tube-in-tube structure, first shaft coupling and motor shaft axle sleeve three are co-axially mounted；
Further include measuring mechanical characteristics module, is used to measure torque, revolving speed and temperature when ultrasound electric machine operation.
2. ultrasound electric machine life test platform according to claim 1, it is characterised in that: variable load module packet above-mentioned
Load wheel disc is included, center location interts load support axis, opens up two relative load wheel discs along radial on load wheel disc
The symmetrical sliding slot in the center of circle installs at least one eccentricity balance-weight block, and eccentricity balance-weight block in the load monosymmetric sliding slot of wheel disc
Total number be 2 multiple.
3. ultrasound electric machine life test platform according to claim 2, it is characterised in that: load support axis above-mentioned both ends
First bearing seat and second bearing seat are installed respectively, load support axis passes through first bearing seat and second bearing seat supports.
4. ultrasound electric machine life test platform according to claim 1, it is characterised in that: further include 3rd bearing seat and
Four bearing blocks, are separately mounted to both ends of the drive shaft；
The tube-in-tube structure of motor mounting plate is mounted on 5th bearing seat by bearing fit.
5. ultrasound electric machine life test platform according to claim 4, it is characterised in that: measuring mechanical characteristics mould above-mentioned
Block includes pressure sensor, optoelectronic switch piece, optoelectronic switch and thermistor,
The top of pressure sensor is fixedly connected by screw with motor mounting plate side, and bottom is fixed by sensor stand
On the base；
Optoelectronic switch piece is mounted on transmission shaft at the shaft shoulder of fourth bearing seat by fixture nut, and optoelectronic switch is mounted on
On four bearing blocks；
Thermistor is mounted on ultrasound electric machine.
6. ultrasound electric machine life test platform according to claim 2, it is characterised in that: load wheel disc and load support axis
It is connected by key, the length of sliding slot is 0.4-0.8 times for loading wheel diameter.
7. ultrasound electric machine life test platform according to claim 2, it is characterised in that: eccentricity balance-weight block above-mentioned is circle
Column construction, center open up circular through hole, select wolfram steel or the production of tungsten-copper alloy material；
An eccentricity balance-weight block is installed respectively in the load monosymmetric sliding slot of wheel disc, fixing bolt by wherein side bias
Clump weight passes through, and is fixedly connected by nut with other side eccentricity balance-weight block.
8. ultrasound electric machine life test platform according to claim 1, it is characterised in that: tube-in-tube structure above-mentioned is hollow
Cylindrical structure, internal diameter are greater than the outer diameter of first shaft coupling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821348479.8U CN208847822U (en) | 2018-08-21 | 2018-08-21 | A kind of ultrasound electric machine life test platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821348479.8U CN208847822U (en) | 2018-08-21 | 2018-08-21 | A kind of ultrasound electric machine life test platform |
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| CN208847822U true CN208847822U (en) | 2019-05-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061469A (en) * | 2018-08-21 | 2018-12-21 | 南京航空航天大学 | A kind of ultrasound electric machine life test platform |
| CN110609231A (en) * | 2019-10-28 | 2019-12-24 | 上海宝协新能源科技有限公司 | Durable test bench of servo motor |
| CN111208426A (en) * | 2020-01-19 | 2020-05-29 | 绍兴艾柯电气有限公司 | Three-phase brushless direct current motor durability test bench |
| CN111722106A (en) * | 2020-06-05 | 2020-09-29 | 格力电器（合肥）有限公司 | Motor operation detection system and method |
| CN109061469B (en) * | 2018-08-21 | 2024-05-17 | 南京航空航天大学 | Ultrasonic motor life test platform |
-
2018
- 2018-08-21 CN CN201821348479.8U patent/CN208847822U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061469A (en) * | 2018-08-21 | 2018-12-21 | 南京航空航天大学 | A kind of ultrasound electric machine life test platform |
| CN109061469B (en) * | 2018-08-21 | 2024-05-17 | 南京航空航天大学 | Ultrasonic motor life test platform |
| CN110609231A (en) * | 2019-10-28 | 2019-12-24 | 上海宝协新能源科技有限公司 | Durable test bench of servo motor |
| CN110609231B (en) * | 2019-10-28 | 2021-07-06 | 上海宝协新能源科技有限公司 | Durable test bench of servo motor |
| CN111208426A (en) * | 2020-01-19 | 2020-05-29 | 绍兴艾柯电气有限公司 | Three-phase brushless direct current motor durability test bench |
| CN111208426B (en) * | 2020-01-19 | 2021-04-27 | 绍兴艾柯电气有限公司 | Three-phase brushless direct current motor durability test bench |
| CN111722106A (en) * | 2020-06-05 | 2020-09-29 | 格力电器（合肥）有限公司 | Motor operation detection system and method |
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