CN204316377U - Bilateral driving rotary type travelling wave ultrasonic motor - Google Patents
Bilateral driving rotary type travelling wave ultrasonic motor Download PDFInfo
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- CN204316377U CN204316377U CN201420781811.5U CN201420781811U CN204316377U CN 204316377 U CN204316377 U CN 204316377U CN 201420781811 U CN201420781811 U CN 201420781811U CN 204316377 U CN204316377 U CN 204316377U
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- stator axis
- rotating disk
- output shaft
- body fuselage
- rotary type
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Abstract
The utility model provides a kind of bilateral driving rotary type travelling wave ultrasonic motor, comprise two stator axis, armature spindle, body fuselage and a bearing, described armature spindle is that rotating disk and output shaft one are processed, rotating disk upper and lower end face is pasted with friction material layer respectively, and output shaft two ends are located respectively by bearing; Described two stator axis are respectively from upper-lower compacting rotor rotating disk, and the outer wall of stator axis and the inner thread of body fuselage are connected simultaneously, and stator lower surface is pasted with piezoelectric ceramic piece, and the rectangle through hole that its lead-in wire is outputed by body fuselage is drawn.Upper and lower two body fuselages are bolted, and the pad being placed with some between two shells adjusts the size of the precompression being applied to rotor.Adopt the direct outputting power of armature spindle, and the dynamic load of energy double-side band, efficiency improves greatly, and this device integrates stator to be fixed and applies precompression, and structure is more simply compact, is easy to the size assembling and adjust precompression, and saving space, Driving Torque is large.
Description
Technical field
The utility model relates to a kind of ultrasound electric machine, particularly relates to a kind of stator that integrates and fixes and the bilateral driving rotary type travelling wave ultrasonic motor applying precompression, armature spindle directly exports.
Background technology
Ultrasound electric machine is a kind of inverse piezoelectric effect utilizing piezoelectric ceramic, excites elastomer to produce micro breadth oscillation in supersonic range, and obtains rotating speed and torque by the friction between rotor.Rotary type travelling wave ultrasonic motor belongs to the one of traveling wave type ultrasonic motor.Have low speed high torque, fast without electromagnetic interference, action response, run noiseless, the notable feature such as cut off self-lock.Aero-Space, optics, medical treatment and micro electro mechanical system field are applied in modern society.But existing rotary type travelling wave ultrasonic motor only has monolateral driving, and efficiency is lower, and regulate the structure of precompression mostly at internal body, such as, in the patent No. 20102021943910, the size of precompression is adjusted by the pad placing some between the output shaft shaft shoulder and bearing, but in order to obtain suitable precompression, need repeated disassembled and assembled to adjust the quantity of pad, operating process is comparatively loaded down with trivial details, in addition, in the patent No. 201110329573.5, adopt two stators, the structure of a rotor, from internal structure, can overcome and contact the problems such as uneven based on the rotary type travelling wave ultrasonic motor rotor existence radial direction of single stator structure at present, but the acquisition of its precompression makes it distortion by the protruding platform pressure web of enclosing cover, due to the complexity of internal structure, the transmission of power is uneven, upper and lower stator can not be equal with the precompression obtained respectively between rotor, when causing motor to drive, up-down structure is asynchronous, Long-Time Service rotor is easily distorted distortion, reduce delivery efficiency, shorten the useful life of motor.
Therefore, a kind of bilateral driving rotary type travelling wave ultrasonic motor is newly needed.
Utility model content
The purpose of this utility model is to provide a kind of bilateral driving rotary type travelling wave ultrasonic motor, this electric machine structure is simply compact, Driving Torque large, can drive two loads simultaneously, simplify the difficulty of motor in debugging precompression process, improve Driving Torque and efficiency.
The purpose of this utility model is achieved through the following technical solutions, a kind of bilateral driving rotary type travelling wave ultrasonic motor, comprise stator axis, armature spindle, body fuselage, described stator axis comprises, lower stator axis, on, lower stator axis is oppositely arranged, on, lower stator axis is for becoming step-thickness, on, lower stator axis external diameter is screwed hollow shaft, screwed hollow shaft end face is provided with horizontally disposed annular web, the annular flange flange place of web outside is provided with tooth bar, collar flange place inside web is pasted with respectively, lower piezoelectric potsherd, on, the rectangle through hole that the lead-in wire of lower piezoelectric potsherd is outputed by body fuselage is drawn,
Described body fuselage comprises upper and lower body fuselage, the inwall of described upper machine body shell is connected with the outer wall thread of upper stator axis, the inwall of described lower body shell is connected with the outer wall thread of lower stator axis, upper and lower body fuselage is connected by bolt, pad is provided with, adjustable clearance size between upper and lower body fuselage;
Described armature spindle comprises rotating disk and output shaft, and rotating disk is arranged on output shaft, and rotating disk upper and lower end face is pasted with friction material layer respectively, and described upper and lower stator axis is respectively from rotating disk both ends of the surface described in upper-lower compacting; Output shaft lower end is passed described lower stator axis and is stretched out outside lower body shell, and output shaft upper end is passed described upper stator axis and stretched out outside upper machine body shell.
Further, described output shaft upper and lower end is located respectively by upper and lower bearing, and upper and lower bearing is slidably matched with corresponding upper and lower body fuselage, and upper and lower body fuselage compresses corresponding described upper and lower bearing respectively.
Further, described output shaft is hollow multidiameter.
Further, the rotating disk of described armature spindle and output shaft are that one is processed.
Further, the tooth top in described upper and lower stator axis leans against described rotating disk corresponding end face, the tooth in upper and lower stator axis and corresponding rotating disk end face parallel contact.
Compared with prior art, the utility model has following beneficial effect:
First, bilateral driving rotary type travelling wave ultrasonic motor of the present utility model, comprise two stator axis, armature spindle, body fuselage and a bearing, stator axis outer wall is connected by threaded engagement with the inwall of body fuselage, internal diameter boundary condition is freely, adopt the direct outputting power of armature spindle, and the dynamic load of energy double-side band, efficiency improves greatly, this device integrates stator to be fixed and applies precompression, and structure is more simply compact, is easy to the size assembling and adjust precompression, save space, Driving Torque is large;
The second, described two stator axis are for becoming step-thickness, and outer radius is designed to screwed hollow shaft, is connected and fixed respectively up and down with the inner thread of body fuselage, need not offer fixing screw specially.Described two stator axis are respectively from upper-lower compacting rotor rotating disk, and the collar flange place inside stator is pasted with piezoelectric ceramic piece, and the rectangle through hole that its lead-in wire is outputed by body fuselage is drawn;
3rd, upper and lower two body fuselages are bolted fixing, the pad being placed with some between two shells adjusts the size of the precompression being applied to rotor, and obtain satisfied precompression by the quantity adjusting pad between the two, due to up-down structure full symmetric, upper and lower stator is equal with the precompression obtained between rotor, and both sides can effectively realize synchronous driving;
4th, described armature spindle is that rotating disk and output shaft one are processed, and rotating disk upper and lower end face is pasted with friction material layer respectively, output shaft is along the hollow setting of axis, and its two ends are located respectively by bearing, and stretch out body fuselage, for being with dynamic load, bilateral driving can be realized.
Accompanying drawing explanation
Fig. 1 is the structural representation of the bilateral driving rotary type travelling wave ultrasonic motor of the utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of Fig. 1 rotor axle;
Fig. 4 is the structural representation of stator axis in Fig. 1;
In figure: 1 is armature spindle, 2 is upper stator axis, and 3 is bolt, and 4 is pad, 5 is nut, and 6 is lower stator axis, and 7 is lower bearing, 8 is lower body shell, and 9 is lower piezoelectric pottery, and 10 is lower friction material layer, 11 is upper friction material layer, and 12 is upper piezoelectric ceramic, and 13 is upper machine body shell, 14 is upper bearing (metal), and 101 is output shaft, and 102 is rotating disk, 201,601 is tooth, and 202,602 is web, and 203,603 is external screw thread.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As Figure 1-4, bilateral driving rotary type travelling wave ultrasonic motor comprises armature spindle 1, up and down stator axis 2,6, up and down body fuselage 13,8 and metal (upper 14,7.Armature spindle 1 is made up of output shaft 101 and rotating disk 102.The feature of upper and lower stator axis 2,6 be tooth 201,601, web 202,602 and external screw thread 203,603.
Fig. 2 is the vertical view of Fig. 1, and composition graphs 1 can specify the structure of body fuselage 13,8.
Armature spindle 1 rotating disk 102 upper and lower end face is pasted with friction material layer 11,10 respectively, and output shaft 101 two ends are located respectively by bearing 14,7.Two stator axis 2,6 are arranged symmetrically with, and respectively from upper-lower compacting rotor rotating disk 102 both ends of the surface, the outer wall of stator axis 2,6 and the inner thread of body fuselage 13,8 are connected and fixed simultaneously, need not offer fixing screw specially.Upper and lower two body fuselages 13,8 are connected by four groups of bolts 3, are placed with the pad 4 of some to adjust the size of precompression between two shells, without dismounting shell etc. during such motor debugging precompression, more simple and convenient.This device adopts armature spindle 1 directly outputting power, and up-down structure full symmetric, the dynamic load of energy double-side band, efficiency improves greatly.
Described upper stator axis 2 is for becoming step-thickness, its end face annular flange flange place is pasted with piezoelectric ceramic 12, the rectangle through hole that the lead-in wire of upper piezoelectric ceramic 12 is outputed by upper machine body shell 13 is drawn, the annular flange flange place, bottom surface of upper stator axis 2 is provided with tooth 201, its bottom surface leans the end face at armature spindle 1 rotating disk 102, ensure that tooth 201 contacts with rotating disk 102 top surface being parallel, outer radius is designed to the hollow shaft being threaded 203, be connected with the inner thread of upper machine body shell 13, web 202 is for increasing stator flexibility.Described lower stator axis 6 is for becoming step-thickness, its annular flange flange place, bottom surface is pasted with lower piezoelectric pottery 9, the rectangle through hole that the lead-in wire of lower piezoelectric pottery 9 is outputed by lower body shell 8 is drawn, the end face annular flange flange place of lower stator axis 6 is provided with tooth 601, its end face leans the bottom surface at armature spindle 1 rotating disk 102, ensure tooth 601 and rotating disk 102 bottom surface parallel contact, outer radius is designed to the hollow shaft being threaded 603, be connected with the inner thread of lower body shell 8, web 602 is for increasing stator flexibility.
Main assemble sequence and adjustment precompression method: two stator axis 2, 6 are arranged symmetrically with, respectively from upper-lower compacting rotor rotating disk 102 both ends of the surface, ensure upper and lower stator axis 2, the working face of 6 reliably realizes and armature spindle 1 rotating disk 102 upper and lower end face parallel contact, bearing 14 is equipped with at shaft shoulder place, output shaft 101 two ends respectively, 7, metal (upper 14, 7 with upper and lower body fuselage 13, 8 is be slidably matched, output shaft 101 is positioned, then body fuselage 13 is installed, be threaded with upper stator axis 2, screw until its end face compresses upper bearing (metal) 14, continue lower body shell 8 is installed, be threaded with lower stator axis 6, screw until its bottom surface compresses lower bearing 7, upper and lower two body fuselages 13, 8 are connected by four groups of bolts 3, and by metal (upper 14, precompression is applied on armature spindle 1 by 7, for providing the normal pressure needed for transmission between rotor axle, the pad 4 of some is placed with to adjust precompression between two shells, if precompression size is improper, only nut 5 need be screwed off, the quantity of adjustment pad 4, such motor is easier for installation easy, the operation mode of motor can not be affected, and due to up-down structure full symmetric, upper and lower stator axis 2, the precompression obtained between 6 with armature spindle 1 is equal, both sides can effectively realize synchronous driving.
Claims (5)
1. a bilateral driving rotary type travelling wave ultrasonic motor, comprise stator axis, armature spindle, body fuselage, it is characterized in that, described stator axis comprises, lower stator axis (2, 6), on, lower stator axis (2, 6) be oppositely arranged, on, lower stator axis (2, 6) for becoming step-thickness, on, lower stator axis (2, 6) external diameter is screwed hollow shaft, screwed hollow shaft end face is provided with horizontally disposed annular web (202, 602), web (202, 602) the annular flange flange place in outside is provided with tooth bar (201, 601), web (202, 602) the collar flange place of inner side is pasted with respectively, lower piezoelectric potsherd (12, 9), on, lower piezoelectric potsherd (12, 9) the rectangle through hole that lead-in wire is outputed by body fuselage is drawn,
Described body fuselage comprises upper and lower body fuselage (13,8), the inwall of described upper machine body shell (13) is connected with the outer wall thread of upper stator axis (2), the inwall of described lower body shell (8) is connected with the outer wall thread of lower stator axis (6), upper and lower body fuselage (13,8) is connected by bolt (3), is provided with the pad (4) of adjustable clearance size between upper and lower body fuselage (13,8);
Described armature spindle comprises rotating disk and output shaft, rotating disk (102) is arranged on output shaft (101), rotating disk (102) upper and lower end face is pasted with friction material layer (11,10) respectively, and described upper and lower stator axis (2,6) is respectively from rotating disk described in upper-lower compacting (102) both ends of the surface; Output shaft (101) lower end is passed described lower stator axis (6) and is stretched out lower body shell (8) outward, and output shaft (101) upper end is passed described upper stator axis (2) and stretched out upper machine body shell (13) outward.
2. bilateral driving rotary type travelling wave ultrasonic motor according to claim 1, it is characterized in that, described output shaft (101) upper and lower end is located respectively by upper and lower bearing (14,7), upper and lower bearing (14,7) is slidably matched with corresponding upper and lower body fuselage (13,8), and upper and lower body fuselage (13,8) compresses corresponding described upper and lower bearing (14,7) respectively.
3. bilateral driving rotary type travelling wave ultrasonic motor according to claim 1 and 2, is characterized in that, described output shaft (101) is hollow multidiameter.
4. bilateral driving rotary type travelling wave ultrasonic motor according to claim 3, is characterized in that, rotating disk (102) and the output shaft (101) of described armature spindle are that one is processed.
5. bilateral driving rotary type travelling wave ultrasonic motor according to claim 1, it is characterized in that, tooth (201,601) in described upper and lower stator axis (2,6) leans at described rotating disk (102) corresponding end face, the tooth (201,601) in upper and lower stator axis (2,6) and corresponding rotating disk (102) end face parallel contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781811.5U CN204316377U (en) | 2014-12-12 | 2014-12-12 | Bilateral driving rotary type travelling wave ultrasonic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781811.5U CN204316377U (en) | 2014-12-12 | 2014-12-12 | Bilateral driving rotary type travelling wave ultrasonic motor |
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| Publication Number | Publication Date |
|---|---|
| CN204316377U true CN204316377U (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420781811.5U Expired - Fee Related CN204316377U (en) | 2014-12-12 | 2014-12-12 | Bilateral driving rotary type travelling wave ultrasonic motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048865A (en) * | 2015-07-10 | 2015-11-11 | 南京工程学院 | Elastic blade type radial transduction type single-phase supersonic motor |
| CN106391980A (en) * | 2015-07-31 | 2017-02-15 | 现代自动车株式会社 | Method of manufacturing light rotor shaft for eco-friendly vehicles |
| CN107196439A (en) * | 2017-05-10 | 2017-09-22 | 哈尔滨工程大学 | A kind of microwave-driven micro motor based on MEMS technology |
-
2014
- 2014-12-12 CN CN201420781811.5U patent/CN204316377U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048865A (en) * | 2015-07-10 | 2015-11-11 | 南京工程学院 | Elastic blade type radial transduction type single-phase supersonic motor |
| CN106391980A (en) * | 2015-07-31 | 2017-02-15 | 现代自动车株式会社 | Method of manufacturing light rotor shaft for eco-friendly vehicles |
| CN107196439A (en) * | 2017-05-10 | 2017-09-22 | 哈尔滨工程大学 | A kind of microwave-driven micro motor based on MEMS technology |
| CN107196439B (en) * | 2017-05-10 | 2019-09-27 | 哈尔滨工程大学 | A kind of microwave-driven micro motor based on MEMS technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20171212 |