CN204119084U - Ultra-magnetic telescopic stepping motor - Google Patents
Ultra-magnetic telescopic stepping motor Download PDFInfo
- Publication number
- CN204119084U CN204119084U CN201420520169.5U CN201420520169U CN204119084U CN 204119084 U CN204119084 U CN 204119084U CN 201420520169 U CN201420520169 U CN 201420520169U CN 204119084 U CN204119084 U CN 204119084U
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- connecting rod
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- rotating driving
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The utility model discloses a kind of ultra-magnetic telescopic stepping motor, comprise output shaft, the rotating driving device be made up of rotor, super-magnetostrictive drive, connecting rod, stator and clutch, bearing, housing and end cap.Motor adopts multiple rotating driving device be made up of rotor, super-magnetostrictive drive, connecting rod, stator and clutch, utilizes super-magnetostrictive drive drivening rod to drive rotor to rotate, simultaneously the rotation of dependence clutch do action output rotor successively.Compared to traditional ultra-magnetic telescopic drive motors, the utility model has compact conformation, power to weight ratio is large, Driving Torque is large, efficiency is high, operate steadily and can realize the advantage of the arbitrarily angled rotation of positive and negative both direction, has promoted ultra-magnetic telescopic stepping motor and has driven field to apply more widely at precision optical machinery.
Description
Technical field
The utility model relates to the stepping motor that a kind of precision optical machinery drives field, a kind of ultra-magnetic telescopic stepping motor specifically.
Background technology
Giant magnetostrictive material is that a kind of size can occur to stretch with external magnetic field change, and magnetostriction coefficient is far longer than the specific function material of traditional magnetostrictive material.Giant magnetostrictive material has that electromechanical conversion efficiency is high, energy density, fast response time, output displacement are large, and reliability is high and be easy to the feature that drives.The transducer utilizing giant magnetostrictive material to make, sound equipment, linear actuator, rotating driver etc. are widely used in fields such as national defense and military, home appliance, robot, MEMSs.Existing ultra-magnetic telescopic motor document Chinese patent " one singly drives bidirectional rotary ultra-magnetic telescopic motor transition " proposes a kind of super-magnetostrictive drive that adopts and drives stator to reverse, and utilizes the frictional force between stators and rotators to carry out moment transmission and realizes the technical scheme that motor rotates;
Prior art exists following not enough: adopt single resignation telescopic driver to drive stator to reverse, its output torque is less; Drive rotor turns produce power to lose and heating by the face contact friction between stators and rotators, and efficiency comparison is low, and output torque size is limited by material contact surface degree of roughness simultaneously.
Utility model content
The utility model provides a kind of ultra-magnetic telescopic stepping motor for the deficiencies in the prior art, and this stepping motor has compact conformation, power to weight ratio is large, Driving Torque is large, efficiency is high and can realize the advantage of the arbitrarily angled rotation of positive and negative both direction;
For achieving the above object, the utility model proposes following technical scheme: a kind of ultra-magnetic telescopic stepping motor, comprises output shaft, the rotating driving device be made up of rotor, super-magnetostrictive drive, connecting rod, stator and clutch, bearing, housing and end cap.Rotating driving device rotor and stator coaxial, rotor and clutch are for be coaxially fixedly connected with, the stretching motion of the exportable length direction of super-magnetostrictive drive, super-magnetostrictive drive one end is fixedly connected with stator, the other end and connecting rod one end form revolute pair and are connected, the connecting rod other end is connected with revolute pair form with rotor, connecting rod and the rotor radius corresponding to rotor tie point and between connecting rod angulation be obtuse angle, between connecting rod and super-magnetostrictive drive, angulation is also obtuse angle, the length direction of magnetostrictor is identical with the direction of stator tie point place radius with it, multiple super-magnetostrictive drive and connecting rod distribute symmetrically and evenly about rotor center.For being fixedly connected with between the stator of rotating driving device and housing, the rotor of rotating driving device and output shaft are coaxial relation, the clutch of rotating driving device and output shaft are coaxial relation, clutch is interference fit between rotating driving device and output shaft under the state of holding tightly, and clutch in the loosened condition output shaft and rotating driving device is matched in clearance.Output shaft connects, for be detachably fixedly connected with between end cap and housing by forming revolute pair between bearing and housing;
Described super-magnetostrictive drive is made up of giant magnetostrictive rod and drive coil, and under the variation magnetic field effect that drive coil produces, giant magnetostrictive rod can produce stretching motion along its length;
Centered by described rotor, symmetry is discoid, and be the moment of inertia of rotor during reduction stepping motor output torque itself, increase its load capacity, rotor structure can carry out loss of weight process, is designed to cellular or spoke-like simultaneously;
Revolute pair between described connecting rod and super-magnetostrictive drive and between connecting rod and rotor connects and can be realized by bearing, also can realize in the mode of flexible hinge;
Described multiple rotating driving device can be installed with the spread pattern of the contrary mounting means of the identical mounting means in output torque direction, adjacent rotating driving device output torque or other rotating driving device any, to this stepping motor, only need according to structure and need control to be applied to sense of current on each rotating driver, all can realize both direction and rotate at any angle;
At axial restraint, only there is the degree of freedom around its center axis thereof in described output shaft;
Described housing is the hollow cylinder shape of upper end open, and end cap and housing upper end open are threaded connection fixing, to be encapsulated by the rotating driving device of stepping motor inside, strengthens its protection reliability;
The operation principle of the utility model ultra-magnetic telescopic stepping motor is: apply drive current in the coil of the multiple super-magnetostrictive drives first distributed symmetrically and evenly about rotor center in first rotating driving device and output shaft held tightly by clutch time, because magnetostriction electrical effect super-magnetostrictive drive produces elongation (or shortening) distortion of length direction, thus promotion connecting rod rotor driven and output shaft rotate, when elongation (or contraction) deformation of super-magnetostrictive drive in first rotating driving device reaches maximum, disconnect first rotating driving device drive current and while loosening the clutch in second rotating driving device about applying the drive current electric current identical or contrary with first rotating driving device drive current direction in the equally distributed multiple super-magnetostrictive drive of disc rotor Central Symmetry and making clutch hold output shaft tightly, make second rotating driving device continue driver output axle with identical or rightabout torque to rotate, first rotating driving device then returns to original shape under the elastic-restoring force effect of giant magnetostrictive rod, second rotating driving device completes after the rotary actuation of a finite angle equally by the stepper drive of multiple rotating driving device travel direction same way below, can continue from first rotating driving device circulation after last rotating driving device completes stepper drive, realize stepping motor with this to rotate at any angle in positive and negative both direction,
The utility model ultra-magnetic telescopic stepping motor is compared traditional ultra-magnetic telescopic drive motors and be it is advantageous that: have employed multiple rotating driving device be made up of rotor, the super-magnetostrictive drive distributed symmetrically and evenly about rotor center and connecting rod, clutch and stator, utilize the cooperation of clutch and super-magnetostrictive drive action to realize rotating driver and drive the method rotating stepping successively, multiple super-magnetostrictive drive and connecting rod act on the compact conformation making driver simultaneously, power to weight ratio is large, substantially increases the Driving Torque of motor; Directly the biased method efficiency pulling rotor to produce moment of torsion is higher as slipper push connecting rod to utilize super-magnetostrictive drive, and there is not the problems of excessive heat that sliding friction causes; The radial load that the symmetrical structures counter of super-magnetostrictive drive and connecting rod output shaft is subject to, makes the operation of driver more steady, reduces wearing and tearing and run noise; The action that logical circulation controls super-magnetostrictive drive and clutch in multiple rotating driving device successively can realize the positive and negative both direction of motor and rotate at any angle.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the utility model ultra-magnetic telescopic stepping motor;
Fig. 2 is the structural representation of the utility model rotating driving device;
Fig. 3 is the structural representation after the encapsulation of the utility model ultra-magnetic telescopic stepping motor.
Embodiment
Below with reference to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and a specific embodiment, the utility model ultra-magnetic telescopic stepping motor is further detailed.The following stated embodiment is only that the utility model is including but not limited to content described in the present embodiment in order to utility model content of the present utility model is better described;
Be respectively the rear structural representation of the internal structure schematic diagram of the utility model ultra-magnetic telescopic stepping motor, the structural representation of rotating driving device and encapsulation as shown in Figure 1, Figure 2 and Figure 3, ultra-magnetic telescopic stepping motor is by output shaft 1, the rotating driving device 2a-2c be made up of rotor 201, super-magnetostrictive drive 202, connecting rod 203, stator 204 and clutch 205, bearing 3a, 3b, housing 4 and end cap 5 form.Rotating driving device 2a-2c rotor 201 and stator 204 coaxial, rotor 201 and clutch 205 are for be coaxially fixedly connected with, the stretching motion of the exportable length direction of super-magnetostrictive drive 202, super-magnetostrictive drive 202 one end is fixedly connected with stator 204, the other end and connecting rod 203 one end form revolute pair and are connected, connecting rod 203 is connected with revolute pair form with rotor 201, connecting rod 203 and the rotor radius corresponding to rotor 201 tie point and between connecting rod 203 angulation be obtuse angle, between connecting rod 203 and super-magnetostrictive drive 202, angulation is also obtuse angle, the length direction of magnetostrictor 202 is identical with the direction of stator 204 tie point place radius with it, multiple super-magnetostrictive drive 202 and connecting rod 203 are uniformly distributed about rotor 201 Central Symmetry.For being fixedly connected with between the stator 204 of rotating driving device 2a-2c and housing 4, rotor 201 and the output shaft 1 of rotating driving device 2a-2c are coaxial relation, clutch 205 and the output shaft 1 of rotating driving device 2a-2c are coaxial relation, clutch 205 is interference fit between rotating driving device 2a-2c and output shaft 1 under the state of holding tightly, and clutch 205 in the loosened condition output shaft 1 and rotating driving device 2a-2c is matched in clearance.Output shaft 1 connects, for be detachably fixedly connected with between end cap 5 and housing 4 by forming revolute pair between bearing 3a, 3b and housing 4;
In the present embodiment, super-magnetostrictive drive 202 is made up of giant magnetostrictive rod and drive coil, and under the variation magnetic field effect that drive coil produces, giant magnetostrictive rod can produce stretching motion along its length.Rotor 201 is spoke-like through loss of weight Treatment Design, and during to reduce stepping motor output torque, the moment of inertia of rotor 201 itself, increases its load capacity.Revolute pair between connecting rod 203 and super-magnetostrictive drive 202 and between connecting rod 203 and rotor 201 connects to be realized by sliding bearing.Rotating driving device 2a-2c installs with the mounting means that output torque direction is identical, and output shaft 1, at axial restraint, only exists the degree of freedom around its center axis thereof.Housing 4 is the hollow cylinder shape of upper end open, and end cap 5 and housing 4 upper end open are threaded connection fixing, to be encapsulated by the rotating driving device 2a-2c of stepping motor inside, strengthens its protection reliability;
When in first rotating driving device 2a about the coil of the equally distributed multiple super-magnetostrictive drive 202 of rotor 201 Central Symmetry in apply drive current and output shaft 1 held tightly by clutch 205 time, because magnetostriction electrical effect super-magnetostrictive drive 202 produces elongation (or shortening) distortion of length direction, thus promotion connecting rod 203 rotor driven 201 and output shaft 1 rotate, when elongation (or contraction) deformation of super-magnetostrictive drive 202 in first rotating driving device 2a reaches maximum, disconnect the drive current of first rotating driving device 2a and to loosen the clutch while 205 in second rotating driving device 2b about applying the drive current electric current identical or contrary with first rotating driving device 2a drive current direction in the equally distributed multiple super-magnetostrictive drive 202 of rotor 201 Central Symmetry and making clutch 205 hold output shaft 1 tightly, make second rotating driving device 2b continue driver output axle 1 with identical or rightabout torque to rotate, first rotating driving device 2a then returns to original shape under the elastic-restoring force effect of giant magnetostrictive rod, second rotating driving device 2b completes after the rotary actuation of a finite angle equally by the stepper drive of rotating driving device 2c travel direction same way below, can continue after last rotating driving device 2c completes stepper drive to circulate from first rotating driving device 2a, realize stepping motor with this to rotate at any angle in a direction,
Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle; some improvements and modifications can also be made; these improvements and modifications also should be considered as protection range of the present utility model, and part not clear and definite in the utility model belongs to the known technology of this area.
Claims (6)
1. a ultra-magnetic telescopic stepping motor, is characterized in that: comprise output shaft, the rotating driving device be made up of rotor, super-magnetostrictive drive, connecting rod, stator and clutch, bearing, housing and end cap, whirligig rotor and stator coaxial, rotor and clutch are for be coaxially fixedly connected with, the stretching motion of the exportable length direction of super-magnetostrictive drive, super-magnetostrictive drive one end is fixedly connected with stator, the other end and connecting rod one end form revolute pair and are connected, the connecting rod other end is connected with revolute pair form with rotor, connecting rod and the rotor radius corresponding to rotor tie point and between connecting rod angulation be obtuse angle, between connecting rod and super-magnetostrictive drive, angulation is also obtuse angle, the length direction of magnetostrictor is identical with the direction of stator tie point place radius with it, multiple super-magnetostrictive drive and connecting rod distribute symmetrically and evenly about rotor center, for being fixedly connected with between the stator of rotating driving device and housing, the rotor of rotating driving device and output shaft are coaxial relation, the clutch of rotating driving device and output shaft are coaxial relation, clutch is interference fit between rotating driving device and output shaft under the state of holding tightly, and clutch in the loosened condition output shaft and rotating driving device is matched in clearance, output shaft connects, for be detachably fixedly connected with between end cap and housing by forming revolute pair between bearing and housing.
2. a kind of ultra-magnetic telescopic stepping motor as claimed in claim 1, it is characterized in that: described super-magnetostrictive drive is made up of giant magnetostrictive rod and drive coil, under the variation magnetic field effect that drive coil produces, giant magnetostrictive rod can produce stretching motion along its length.
3. a kind of ultra-magnetic telescopic stepping motor as claimed in claim 1, is characterized in that: centered by described rotor, symmetry is discoid, also can be the cellular or spoke-like after loss of weight process.
4. a kind of ultra-magnetic telescopic stepping motor as claimed in claim 1, is characterized in that: the revolute pair between described connecting rod and super-magnetostrictive drive and between connecting rod and rotor connects and can be realized by bearing, also can realize in the mode of flexible hinge.
5. a kind of ultra-magnetic telescopic stepping motor as claimed in claim 1, is characterized in that: described output shaft, at axial restraint, only exists the degree of freedom around its center axis thereof.
6. a kind of ultra-magnetic telescopic stepping motor as claimed in claim 1, it is characterized in that: described housing is the hollow cylinder shape of upper end open, end cap and housing upper end open are threaded connection fixing, to be encapsulated by the rotating driving device of stepping motor inside, strengthen its protection reliability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520169.5U CN204119084U (en) | 2014-09-11 | 2014-09-11 | Ultra-magnetic telescopic stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520169.5U CN204119084U (en) | 2014-09-11 | 2014-09-11 | Ultra-magnetic telescopic stepping motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204119084U true CN204119084U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420520169.5U Withdrawn - After Issue CN204119084U (en) | 2014-09-11 | 2014-09-11 | Ultra-magnetic telescopic stepping motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN204119084U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184363A (en) * | 2014-09-11 | 2014-12-03 | 六安源创电机制造科技有限公司 | Giant magnetostrictive stepping motor |
| CN104953786A (en) * | 2015-06-23 | 2015-09-30 | 刘淮祥 | Giant magnetostrictive stepper motor based on four-bar linkages |
| CN108494288A (en) * | 2018-05-10 | 2018-09-04 | 西安交通大学 | Comb-tooth-type angular displacement stepping actuator and start method based on inverse flexure electricity principle |
-
2014
- 2014-09-11 CN CN201420520169.5U patent/CN204119084U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184363A (en) * | 2014-09-11 | 2014-12-03 | 六安源创电机制造科技有限公司 | Giant magnetostrictive stepping motor |
| CN104953786A (en) * | 2015-06-23 | 2015-09-30 | 刘淮祥 | Giant magnetostrictive stepper motor based on four-bar linkages |
| CN104953786B (en) * | 2015-06-23 | 2017-11-28 | 六安源创电机制造科技有限公司 | Ultra-magnetic telescopic stepper motor based on four-bar linkage |
| CN108494288A (en) * | 2018-05-10 | 2018-09-04 | 西安交通大学 | Comb-tooth-type angular displacement stepping actuator and start method based on inverse flexure electricity principle |
| CN108494288B (en) * | 2018-05-10 | 2019-05-21 | 西安交通大学 | Comb-tooth-type angular displacement stepping actuator and actuation method based on inverse flexure electricity principle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150121 Effective date of abandoning: 20180706 |
|
| AV01 | Patent right actively abandoned |