CN204408215U - A kind of open type high overload rotary traveling wave ultrasonic motor - Google Patents
A kind of open type high overload rotary traveling wave ultrasonic motor Download PDFInfo
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- CN204408215U CN204408215U CN201520055676.0U CN201520055676U CN204408215U CN 204408215 U CN204408215 U CN 204408215U CN 201520055676 U CN201520055676 U CN 201520055676U CN 204408215 U CN204408215 U CN 204408215U
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- motor
- motor shaft
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- high overload
- rotor discs
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Abstract
The utility model discloses a kind of open type high overload rotary traveling wave ultrasonic motor, comprise: stator rotor disk, motor base, motor shaft, locking nut for being connected with motor shaft, sheathed motor base, rotor discs on described motor shaft, described stator is arranged on motor base, and described stator 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 stator contact; The sheathed locking nut of described motor shaft right-hand member.The utility model has that anti high overload, motor pre-tightening power are easy to adjust, the advantage of perfect heat-dissipating.
Description
Technical field
The utility model belongs to Ultrasonic Motor Techniques field, is 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.
Utility model content
For solving the technical problem of existing existence, the utility model embodiment provides a kind of open type high overload rotary traveling wave ultrasonic motor.
For achieving the above object, the technical scheme of the utility model embodiment is achieved in that
The utility model embodiment 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 stator is arranged on motor base, and described stator 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 stator 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, the beneficial effects of the utility model:
The utility model 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 utility model 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 utility model embodiment.
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 utility model is described in detail.
The utility model embodiment 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 stator (6) is arranged on motor base (4), and described stator (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 stator (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 |
|---|---|---|---|
| CN201520055676.0U CN204408215U (en) | 2015-01-27 | 2015-01-27 | A kind of open type high overload rotary traveling wave ultrasonic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520055676.0U CN204408215U (en) | 2015-01-27 | 2015-01-27 | A kind of open type high overload rotary traveling wave ultrasonic motor |
Publications (1)
| Publication Number | Publication Date |
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| CN204408215U true CN204408215U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520055676.0U Active CN204408215U (en) | 2015-01-27 | 2015-01-27 | A kind of open type high overload rotary traveling wave ultrasonic motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578903A (en) * | 2015-01-27 | 2015-04-29 | 西安创联超声技术有限责任公司 | Open high-overload rotary traveling wave ultrasonic motor |
| CN105207520A (en) * | 2015-09-21 | 2015-12-30 | 哈尔滨工业大学 | Rotating type traveling wave ultrasonic motor and stator and rotor pre-tightening method thereof |
-
2015
- 2015-01-27 CN CN201520055676.0U patent/CN204408215U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578903A (en) * | 2015-01-27 | 2015-04-29 | 西安创联超声技术有限责任公司 | Open high-overload rotary traveling wave ultrasonic motor |
| CN105207520A (en) * | 2015-09-21 | 2015-12-30 | 哈尔滨工业大学 | Rotating type traveling wave ultrasonic motor and stator and rotor pre-tightening method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |