CN209283125U - A kind of high overload-resistant traveling wave type ultrasonic motor - Google Patents
A kind of high overload-resistant traveling wave type ultrasonic motor Download PDFInfo
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- CN209283125U CN209283125U CN201822194084.3U CN201822194084U CN209283125U CN 209283125 U CN209283125 U CN 209283125U CN 201822194084 U CN201822194084 U CN 201822194084U CN 209283125 U CN209283125 U CN 209283125U
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- precompression
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Abstract
The utility model relates to a kind of high overload-resistant traveling wave type ultrasonic motors, including motor base, the bottom end of motor shaft is installed in motor base center, and motor shaft is from top to bottom sequentially arranged rotor and motor stator, and the bottom surface of motor stator is contacted with motor base；Rotor and motor shaft make sliding and separate connection, rotor can along motor shaft slide axially and at the same time with respect to motor shaft radial rotary；Further include precompression transferring structure, the precompression being applied on precompression nut is transferred on rotor and motor stator；It is arranged locking nut in the bottom end of motor shaft, spring bearing is installed in motor base center, and the outer ring of locking nut and the inner ring of spring bearing connect firmly, motor shaft are vertically installed on motor base；The utility model has the characteristics that the slow-speed of revolution, torque/mass ratio are big, fast response time, cuts off self-lock, nanometer resolution and without electromagnetic interference.
Description
Technical field
The utility model relates to a kind of high overload-resistant traveling wave type ultrasonic motors, belong to motor field.
Background technique
Traveling wave type ultrasonic motor usually requires the axis by motor, by the clamped rotor on motor shaft to motor stator
Apply suitable axial precompression, so as to the traveling wave for forming piezoelectric ceramics in stator surface, the axis applied by rotor
The rotating friction force of stator surface is converted into precompression, pushing motor rotor drives motor shaft to the rotating friction force again in turn
To generate rotary motion output acting.Traditionally that motor shaft is mutually clamped with rotor, rotor keeps cantilever beam knot
Structure is to receive the axial precompression applied.So, there will be this additional quality of motor shaft on rotor, so that
In motor under the conditions of high G acceleration, rotor or motor stator can because of the impact of high inertia produced by its quality of motor shaft,
And generate unpredictable plastic deformation or even destruction.
Utility model content
The utility model provides a kind of high overload-resistant traveling wave type ultrasonic motor, have the slow-speed of revolution, torque/mass ratio it is big,
Fast response time cuts off self-lock, nanometer resolution and the features such as without electromagnetic interference.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of high overload-resistant traveling wave type ultrasonic motor, including motor base, the bottom end of motor shaft are installed in motor base
Center, motor shaft are from top to bottom sequentially arranged rotor and motor stator, the bottom surface of motor stator and motor bottom seated connection
Touching；Rotor makees sliding with motor shaft and separates connection, and rotor can sliding axially and at the same time opposite along motor shaft
The radial rotary of motor shaft；
Further include precompression transferring structure, the precompression being applied on precompression nut is transferred to rotor and electricity
On machine stator；
Be arranged locking nut in the bottom end of motor shaft, spring bearing is installed in motor base center, locking nut it is outer
It encloses and is connected firmly with the inner ring of spring bearing, motor shaft is vertically installed on motor base；
As the further preferred of the utility model, precompression transferring structure above-mentioned includes from top to bottom sequentially being set in
Precompression pressing plate and disk spring on motor shaft, and precompression nut is contacted with the surface of precompression pressing plate, disk spring
Bottom end is contacted with the surface of rotor；
As the further preferred of the utility model, made relatively between rotor and motor shaft above-mentioned by irregularly-shaped hole
Sliding separation connection；
As the further preferred of the utility model, square hole is opened up in rotor center, motor shaft passes through square hole,
Rotor can along motor shaft slide axially and at the same time opposite motor shaft radial rotary；
As the further preferred of the utility model, keyway, motor are symmetrically opened up in the hole of rotor center
Axis passes through hole, rotor can along motor shaft slide axially and at the same time opposite motor shaft radial rotary.
By above technical scheme, compared with the existing technology, the utility model has the following beneficial effects:
The present invention can be realized traveling wave type ultrasonic motor under the conditions of tens of thousands of G high overloads, enable rotor or motor stator
It not will receive the influence of motor shaft quality impact inertia, and eliminate rotor or motor stator plastic deformation or even destroy.
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 preferred embodiment of the utility model.
In figure: 1 is rotor, and 2 be motor stator, and 3 be motor base, and 4 be spring bearing, and 11 be motor shaft, and 12 are
Precompression nut, 13 be precompression pressing plate, and 14 be disk spring, and 15 be locking nut.
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 shown in Figure 1, the utility model includes following characteristics component: 1 is rotor, and 2 be motor stator, and 3 be motor
Pedestal, 4 be spring bearing, and 11 be motor shaft, and 12 be precompression nut, and 13 be precompression pressing plate, and 14 be disk spring, and 15 be lock
Tight nut.
The bottom end of a kind of high overload-resistant traveling wave type ultrasonic motor of the utility model, including motor base, motor shaft is solid
It is located at motor base center, motor shaft is from top to bottom sequentially arranged rotor and motor stator, the bottom surface of motor stator
It is contacted with motor base；Rotor makees sliding with motor shaft and separates connection, and rotor can sliding axially along motor shaft
And at the same time the radial rotary of opposite motor shaft；
Further include precompression transferring structure, the precompression being applied on precompression nut is transferred to rotor and electricity
On machine stator；
Be arranged locking nut in the bottom end of motor shaft, spring bearing is installed in motor base center, locking nut it is outer
It encloses and is connected firmly with the inner ring of spring bearing, motor shaft is vertically installed on motor base；Enable motor shaft can be with motor base phase
While keeping vertical clamped connection between mutually, and by impact inertia load caused by ten thousand G acceleration of the motor shaft factor of quality,
Or the extraneous axial force load that motor shaft is born, it can be unloaded through motor base spring bearing by motor base.
As the further preferred of the utility model, precompression transferring structure above-mentioned includes from top to bottom sequentially being set in
Precompression pressing plate and disk spring on motor shaft, and precompression nut is contacted with the surface of precompression pressing plate, disk spring
Bottom end is contacted with the surface of rotor；Precompression nut passes to dish through precompression pressing plate along motor shaft, by precompression
On spring, then by disk spring precompression is acted on rotor and motor stator, it is therefore an objective to non-thread using disk spring
Property zero stiffness characteristic section, so that the precompression between rotor and motor stator is kept constant, i.e. ultrasound electric machine either axis
Change in size caused by load change, temperature change, material loss and creep, fabrication error and other reasons, does not see you again
Any undesirable influence is generated on the precompression between rotor and motor stator；
As the further preferred of the utility model, made relatively between rotor and motor shaft above-mentioned by irregularly-shaped hole
Sliding separation connection；Even the clamped connection between rotor and motor shaft is eliminated, while maintaining rotor again
It is able to drive motor shaft and generates rotation；
As the further preferred of the utility model, square hole is opened up in rotor center, motor shaft passes through square hole,
Rotor can along motor shaft slide axially and at the same time opposite motor shaft radial rotary；
As the further preferred of the utility model, keyway, motor are symmetrically opened up in the hole of rotor center
Axis passes through hole, rotor can along motor shaft slide axially and at the same time opposite motor shaft radial rotary；
It should be noted that there are also various other forms such as tooth socket, sliding sleeve etc. only to need in addition to square hole and keyway arrangements
Realize that rotor can sliding axially and at the same time opposite motor shaft radial rotary along motor shaft.
The utility model is that rotor and motor stator apply constant precompression by disk spring；Motor shaft and motor
Pedestal is mutually perpendicular to clamped connection via motor base spring bearing, this additional mass of motor shaft is produced under the conditions of high overload
Raw high inertia shock loading mostly passes through the inner ring of motor base spring bearing, then arrives the outer of motor base bearing
Circle is offloaded to motor base；Again because rotor opposite can be slided with motor shaft separates connection, even if some
Additional impact inertia, which exists, is also unlikely to make rotor or motor stator to generate plastic deformation.
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 (5)
1. a kind of high overload-resistant traveling wave type ultrasonic motor, including motor base, the bottom end of motor shaft are installed in motor base
Heart position, motor shaft are from top to bottom sequentially arranged rotor and motor stator, and the bottom surface of motor stator is contacted with motor base；
It is characterized by: rotor and motor shaft, which make sliding, separates connection, rotor can along motor shaft slide axially and
The radial rotary of opposite motor shaft simultaneously；
Further include precompression transferring structure, the precompression being applied on precompression nut is transferred to rotor and is determined with motor
On son；
Be arranged locking nut in the bottom end of motor shaft, spring bearing is installed in motor base center, the outer ring of locking nut with
The inner ring of spring bearing connects firmly, and motor shaft is vertically installed on motor base.
2. the overload-resistant traveling wave type ultrasonic motor of height according to claim 1, it is characterised in that: precompression transmitting above-mentioned
Structure includes the precompression pressing plate being from top to bottom sequentially set on motor shaft and disk spring, and precompression nut and precompression
The surface of pressing plate contacts, and the bottom end of disk spring is contacted with the surface of rotor.
3. the overload-resistant traveling wave type ultrasonic motor of height according to claim 1, it is characterised in that: rotor above-mentioned with
Opposite sliding separation connection is made by irregularly-shaped hole between motor shaft.
4. the overload-resistant traveling wave type ultrasonic motor of height according to claim 1, it is characterised in that: in rotor centre bit
It sets and opens up square hole, motor shaft passes through square hole, and rotor can sliding axially and at the same time with respect to motor shaft along motor shaft
Radial rotary.
5. the overload-resistant traveling wave type ultrasonic motor of height according to claim 1, it is characterised in that: in rotor centre bit
It sets and symmetrically opens up keyway in hole, motor shaft passes through hole, and rotor can sliding axially and at the same time phase along motor shaft
To the radial rotary of motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822194084.3U CN209283125U (en) | 2018-12-25 | 2018-12-25 | A kind of high overload-resistant traveling wave type ultrasonic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822194084.3U CN209283125U (en) | 2018-12-25 | 2018-12-25 | A kind of high overload-resistant traveling wave type ultrasonic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209283125U true CN209283125U (en) | 2019-08-20 |
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ID=67607228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822194084.3U Active CN209283125U (en) | 2018-12-25 | 2018-12-25 | A kind of high overload-resistant traveling wave type ultrasonic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209283125U (en) |
-
2018
- 2018-12-25 CN CN201822194084.3U patent/CN209283125U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 210000 29 general road, Jiangning Development Zone, Nanjing, Jiangsu Patentee after: Nanjing Hangda override Technology Co., Ltd Address before: 210000 29 general road, Jiangning Development Zone, Nanjing, Jiangsu Patentee before: Nanjing Airlines super Control Technology Co., Ltd. |