CN104578903A - Open high-overload rotary traveling wave ultrasonic motor - Google Patents
Open high-overload rotary traveling wave ultrasonic motor Download PDFInfo
- Publication number
- CN104578903A CN104578903A CN201510039986.8A CN201510039986A CN104578903A CN 104578903 A CN104578903 A CN 104578903A CN 201510039986 A CN201510039986 A CN 201510039986A CN 104578903 A CN104578903 A CN 104578903A
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- motor
- motor shaft
- traveling wave
- locking nut
- wave ultrasonic
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Abstract
The invention discloses an open high-overload rotary traveling wave ultrasonic motor which comprises a stator, a rotor disc, a motor base, a motor shaft and a locking nut for being connected with the motor shaft. The motor shaft is sleeved with the motor base and the rotor disc, the stator is arranged on the motor base, and a piezoelectric ceramic transduction piece is arranged on the surface of the right side of the stator. A vibration absorbing gasket is arranged on the left end face of the rotor disc, and a friction piece is arranged on the right end face of the rotor disc and is in contact with the stator. The locking nut is arranged at the right end of the motor shaft in a sleeved mode. The open high-overload rotary traveling wave ultrasonic motor has the advantages of being resistant to high overload and good in heat dissipation performance and facilitating motor pre-tightening force regulation.
Description
Technical field
The invention belongs to Ultrasonic Motor Techniques field, be specifically related to a kind of open type high overload rotary traveling wave ultrasonic motor.
Background technology
Various ultrasound electric machine of the prior art, lacks a kind of ultrasound electric machine of open architecture anti high overload.
In prior art, ultrasound electric machine is: shell and base are bolted, and by upper bearing (metal), precompression is applied on rotor, for providing the normal pressure needed for transmission between stators and rotators, in order to adjust the size of this normal pressure, need the pad placing some between output shaft convex shoulder and upper bearing (metal).On the one hand, the strain of pad self, the accurate control of its thickness is made to be difficult to grasp, on the other hand, when tightening four screws between base and shell, be difficult to ensure that their screwing force is identical, just cannot ensure to apply the uniformity of normal pressure, when under the condition of motor at high overload, four screws tightened between base and shell can produce loosening, cause the decline of the pretightning force of motor, affect the output performance of motor.
Ultrasound electric machine is also had to be by threadedly installing pre-load nut and stop nut in output shaft lower end in prior art, and pre-load nut is close proximity to below lower bearing, stop nut is close proximity to below pre-load nut, motor applies the uniformity of normal pressure to adopt pretightning force addition manner ensure that, but its pre-load nut used and stop nut do not propose particular/special requirement, when under its condition at high overload, the pretightning force of motor still can decline, and affects the output performance of motor.
Summary of the invention
For solving the technical problem of existing existence, the embodiment of the present invention provides a kind of open type high overload rotary traveling wave ultrasonic motor.
For achieving the above object, the technical scheme of the embodiment of the present invention is achieved in that
The embodiment of the present invention provides a kind of open type high overload rotary traveling wave ultrasonic motor, this ultrasound electric machine comprises: stator, rotor discs, motor base, motor shaft, locking nut for being connected with motor shaft, sheathed motor base, rotor discs on described motor shaft, described elastomer is arranged on motor base, and described elastomer right lateral surface is provided with piezoelectric ceramic transduction piece; Described rotor discs left side is provided with absorbing packing ring, rotor discs right side be provided with friction plate and and elastomer contact; The sheathed locking nut of described motor shaft right-hand member.
In such scheme, described motor shaft right-hand member is positioned on motor base by bearing; Stop the right side between described locking nut and bearing from a left side and have bearing inner race packing ring and lock washer successively.
In such scheme, the material of described lock washer is acrylonitrile-butadiene rubber.
Compared with prior art, beneficial effect of the present invention:
The present invention has that anti high overload, motor pre-tightening power are easy to adjust, the advantage of perfect heat-dissipating.
When locking nut and motor shaft are by after screw threads for fastening, at axial 4000g, under the overload of radial 8000g, pretightning force is unchanged; Pretightning force addition manner of the present invention ensure that motor applies the even of normal pressure; Ultrasound electric machine is open architecture, i.e. motor inorganic shell, the frictional interface of motor and piezoelectric ceramic transduction piece all directly contact with air, and the frictional heat of generation and the heating of piezoelectric ceramic transduction piece do not need to be dispelled the heat by motor case and transfer of air, have good heat dispersion.
Accompanying drawing explanation
The structural representation of a kind of open type high overload rotary traveling wave ultrasonic motor that Fig. 1 provides for the embodiment of the present invention.
Wherein: 1 motor shaft; 2 locking nuts; 3 bearings; 4 motor bases; 5 piezoelectric ceramic transduction pieces; 6 stators; 7 friction plates; 8 rotor discs; 9 first screws; 10 absorbing packing rings; 11 flexible circuit board; 12 second screws; 13 bearing inner race packing rings; 14 lock washers.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The embodiment of the present invention provides a kind of open type high overload rotary traveling wave ultrasonic motor, as shown in Figure 1, this ultrasound electric machine comprises: stator 6, rotor discs 8, motor base 4, motor shaft 1, locking nut 2 for being connected with motor shaft 1, sheathed motor base 4, rotor discs 8 on described motor shaft 1, described stator 6 is arranged on motor base 4, described stator 6 right lateral surface is provided with piezoelectric ceramic transduction piece 5, and piezoelectric ceramic transduction piece 5 provides vibration source for stator 6; Described rotor discs 8 left side is provided with absorbing packing ring 10, and rotor discs 8 right side is provided with friction plate 7 and contacts with stator 6, and wherein friction plate 7 is in order to avoid rotor discs 8 and stator 6 direct friction; The sheathed locking nut 2 of described motor shaft 1 right-hand member.
Described piezoelectric ceramic transduction piece 5 is connected on the described right surface of stator 6 by specifying the Wear Characteristics of Epoxy Adhesive of composition.
Described motor shaft 1 right-hand member is positioned on motor base 4 by bearing 3; Stop the right side between described locking nut 2 and bearing 3 from a left side and have bearing inner race packing ring 13 and lock washer 14 successively, wherein bearing inner race packing ring 13 effect is to ensure that motor shaft 1 rotates together with bearing inner race; Described lock washer 14 effect is the frictional resistance in order to increase between bearing inner race packing ring 13 and locking nut 2.
Described motor shaft 1 is connected by the first screw 9 with rotor discs 8; Described stator 6 is connected by the second screw 12 with motor base 4.
What described locking nut 2 was Shanghai Detroit Precision Fastener Co., Ltd execute must firm hexagonal flange stop nut, and its mechanical performance grade is: 12.
The fastening anaerobic adhesive of high-strength screw is filled in thread pitch between described locking nut 2 and motor shaft 1.
Tighten described locking nut 2, when being increased to predetermined value, stop operating locking nut 2, and because locking nut 2 screw thread is particular/special requirement screw thread, play the effect by motor shaft 1 and locking nut 2 self-locking, under high overload condition, motor pre-tightening power is unchanged.
The screw thread of described locking nut 2 is special thread, and the screw thread on described motor shaft 1 is standard thread.When locking nut 2 and motor shaft 1 are by after screw threads for fastening, at axial 4000g, under the overload of radial 8000g, pretightning force is unchanged.
Described ultrasound electric machine is open architecture, i.e. motor inorganic shell, the frictional interface of motor and piezoelectric ceramic transduction piece all directly contact with air, and the frictional heat of generation and the heating of piezoelectric ceramic transduction piece do not need to be dispelled the heat by motor case and transfer of air, have good heat dispersion.
Claims (3)
1. an open type high overload rotary traveling wave ultrasonic motor, it is characterized in that, this ultrasound electric machine comprises: stator (6), rotor discs (8), motor base (4), motor shaft (1), locking nut (2) for being connected with motor shaft (1), described motor shaft (1) upper sheathed motor base (4), rotor discs (8), described elastomer (6) is arranged on motor base (4), and described elastomer (6) right lateral surface is provided with piezoelectric ceramic transduction piece (5); Described rotor discs (8) left side is provided with absorbing packing ring (10), and rotor discs (8) right side is provided with friction plate (7) and contacts with elastomer (6); The sheathed locking nut of described motor shaft (1) right-hand member (2).
2. open type high overload rotary traveling wave ultrasonic motor according to claim 1, is characterized in that: described motor shaft (1) right-hand member is positioned on motor base (4) by bearing (3); Stop the right side between described locking nut (2) and bearing (3) from a left side and have bearing inner race packing ring (13) and lock washer (14) successively.
3. open type high overload rotary traveling wave ultrasonic motor according to claim 2, is characterized in that: the material of described lock washer (14) is acrylonitrile-butadiene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039986.8A CN104578903A (en) | 2015-01-27 | 2015-01-27 | Open high-overload rotary traveling wave ultrasonic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039986.8A CN104578903A (en) | 2015-01-27 | 2015-01-27 | Open high-overload rotary traveling wave ultrasonic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104578903A true CN104578903A (en) | 2015-04-29 |
Family
ID=53094281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510039986.8A Pending CN104578903A (en) | 2015-01-27 | 2015-01-27 | Open high-overload rotary traveling wave ultrasonic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104578903A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451895A (en) * | 2016-11-30 | 2017-02-22 | 桂林智神信息技术有限公司 | Damping type motor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6489978A (en) * | 1987-09-28 | 1989-04-05 | Miki Pulley Kk | Supersonic motor |
| JPH03117382A (en) * | 1989-09-27 | 1991-05-20 | Tamura Electric Works Ltd | Ultrasonic motor |
| US20050001516A1 (en) * | 2003-05-27 | 2005-01-06 | Kenji Uchino | Piezoelectric motor and method of exciting an ultrasonic traveling wave to drive the motor |
| CN201708710U (en) * | 2010-06-08 | 2011-01-12 | 浙江大学 | Conical-surface ultrasonic motor with floating rotor |
| CN202111634U (en) * | 2011-06-14 | 2012-01-11 | 南京航空航天大学 | Rotation type traveling-wave ultrasonic motor with precompression adjustment by nut |
| CN103674459A (en) * | 2013-11-18 | 2014-03-26 | 北京宇航系统工程研究所 | Anti-loose performance test method in fastener thread glue coating |
| CN204408215U (en) * | 2015-01-27 | 2015-06-17 | 西安创联超声技术有限责任公司 | A kind of open type high overload rotary traveling wave ultrasonic motor |
-
2015
- 2015-01-27 CN CN201510039986.8A patent/CN104578903A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6489978A (en) * | 1987-09-28 | 1989-04-05 | Miki Pulley Kk | Supersonic motor |
| JPH03117382A (en) * | 1989-09-27 | 1991-05-20 | Tamura Electric Works Ltd | Ultrasonic motor |
| US20050001516A1 (en) * | 2003-05-27 | 2005-01-06 | Kenji Uchino | Piezoelectric motor and method of exciting an ultrasonic traveling wave to drive the motor |
| CN201708710U (en) * | 2010-06-08 | 2011-01-12 | 浙江大学 | Conical-surface ultrasonic motor with floating rotor |
| CN202111634U (en) * | 2011-06-14 | 2012-01-11 | 南京航空航天大学 | Rotation type traveling-wave ultrasonic motor with precompression adjustment by nut |
| CN103674459A (en) * | 2013-11-18 | 2014-03-26 | 北京宇航系统工程研究所 | Anti-loose performance test method in fastener thread glue coating |
| CN204408215U (en) * | 2015-01-27 | 2015-06-17 | 西安创联超声技术有限责任公司 | A kind of open type high overload rotary traveling wave ultrasonic motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451895A (en) * | 2016-11-30 | 2017-02-22 | 桂林智神信息技术有限公司 | Damping type motor |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
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| RJ01 | Rejection of invention patent application after publication |