CN204681229U - Based on the ultra-magnetic telescopic stepping motor of four-bar linkage - Google Patents
Based on the ultra-magnetic telescopic stepping motor of four-bar linkage Download PDFInfo
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- CN204681229U CN204681229U CN201520431916.2U CN201520431916U CN204681229U CN 204681229 U CN204681229 U CN 204681229U CN 201520431916 U CN201520431916 U CN 201520431916U CN 204681229 U CN204681229 U CN 204681229U
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Abstract
The utility model discloses a kind of ultra-magnetic telescopic stepping motor based on four-bar linkage, comprise output shaft, the rotating driving device be made up of rotor, super-magnetostrictive drive, lever, connecting rod, stator and clutch, bearing, housing and end cap.Motor adopts multiple rotating driving device be made up of rotor, super-magnetostrictive drive, lever, connecting rod, stator and clutch, super-magnetostrictive drive straight-line displacement exports and amplifies rear drive rotor and rotate by the four-bar linkage utilizing housing, lever, connecting rod and rotor to form, and relies on the rotation of clutch do action output rotor successively simultaneously.Compared to traditional ultra-magnetic telescopic drive motors, the utility model has that Driving Torque is large, efficiency is high, operates steadily, noise is low 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 based on four-bar linkage 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 based on four-bar linkage for the deficiencies in the prior art, and this stepping motor has that Driving Torque is large, efficiency is high, operates steadily, noise is little 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 based on four-bar linkage, comprise output shaft, the rotating driving device be made up of rotor, super-magnetostrictive drive, lever, 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 lever one end form revolute pair and are connected, the support protruded by stator inner ring between lever and stator is formed revolute pair and connects, balance pivot is less than to the distance being connected one end with super-magnetostrictive drive the distance being connected one end with connecting rod, the lever other end and connecting rod 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 lever, 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, lever 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, also can be the cellular or spoke-like after loss of weight process.
Revolute pair between described connecting rod and lever, between connecting rod and rotor, between lever and super-magnetostrictive drive and between lever and stator connects and can be realized by bearing, also can realize in the mode of flexible hinge.
The described lever playing displacement equations effect can by the displacement equations coefficient regulating the position of fulcrum carry out adjustment (adjusting) lever, can also be regulated the size of step angle by the size of the length of regulating connecting rod and rotor diameter simultaneously.
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 utility model based on the operation principle of the ultra-magnetic telescopic stepping motor of four-bar linkage 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 under the displacement equations effect of lever, promote connecting rod rotor driven and output shaft rotates, 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 is compared traditional ultra-magnetic telescopic drive motors based on the ultra-magnetic telescopic stepping motor of four-bar linkage and be it is advantageous that: have employed multiple rotating driving device be made up of rotor, super-magnetostrictive drive, lever, 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, lever and connecting rod act on the Driving Torque substantially increasing motor simultaneously; The rotational angle that the method that super-magnetostrictive drive straight-line displacement is exported amplification rear drive rotor generation moment of torsion by the four-bar linkage utilizing housing, lever, connecting rod and rotor to form makes stepping motor often walk is larger, and there is not the problems of excessive heat that sliding friction causes, efficiency is higher; The radial load that the symmetrical structures counter of super-magnetostrictive drive, lever and connecting rod output shaft is subject to, makes the operation of driver more steady, reduces wearing and tearing and run noise; The action controlling super-magnetostrictive drive and clutch in multiple rotating driving device successively by circulating 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 based on the ultra-magnetic telescopic stepping motor of four-bar linkage.
Fig. 2 is the structural representation of the utility model rotating driving device.
Fig. 3 is that the utility model is based on the structural representation after the ultra-magnetic telescopic stepping motor encapsulation of four-bar linkage.
Embodiment
Below with reference to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and a specific embodiment, the ultra-magnetic telescopic stepping motor of the utility model based on four-bar linkage 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 utility model as shown in Figure 1, Figure 2 and Figure 3 based on structural representation after the internal structure schematic diagram of the ultra-magnetic telescopic stepping motor of four-bar linkage, the structural representation of rotating driving device and encapsulation, based on the ultra-magnetic telescopic stepping motor of four-bar linkage by output shaft 1, by rotor 201, super-magnetostrictive drive 202, connecting rod 203, lever 204, the rotating driving device 2a-2c that stator 205 and clutch 206 form, bearing 3a, 3b, housing 4 and end cap 5 form.Rotating driving device 2a-2c rotor 201 and stator 205 coaxial, rotor 201 and clutch 206 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 205, the other end and lever 204 one end form revolute pair and are connected, the support protruded by stator 205 inner ring between lever 204 and stator 205 is formed revolute pair and connects, balance pivot is less than to the distance being connected one end with super-magnetostrictive drive 202 distance being connected one end with connecting rod 203, lever 204 other end forms revolute pair with connecting rod 203 and is connected, connecting rod 203 other end 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 lever 204, angulation is also obtuse angle, the length direction of magnetostrictor 202 is identical with the direction of stator 205 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 205 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 206 and the output shaft 1 of rotating driving device 2a-2c are coaxial relation, clutch 206 is interference fit between rotating driving device 2a-2c and output shaft 1 under the state of holding tightly, and clutch 206 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 connection between connecting rod 203 and lever 204, between connecting rod 203 and rotor 201, between lever 204 and super-magnetostrictive drive 202 and between lever 204 and stator 205 realizes with 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 under the displacement equations effect of lever 204, promote connecting rod 203 rotor driven 201 and output shaft 1 rotates, 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 206 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 206 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. based on a ultra-magnetic telescopic stepping motor for four-bar linkage, it is characterized in that: comprise output shaft, the rotating driving device be made up of rotor, super-magnetostrictive drive, lever, 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 lever one end form revolute pair and are connected, the support protruded by stator inner ring between lever and stator is formed revolute pair and connects, balance pivot is less than to the distance being connected one end with super-magnetostrictive drive the distance being connected one end with connecting rod, the lever other end and connecting rod 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 lever, 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, lever 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. based on a kind of ultra-magnetic telescopic stepping motor based on four-bar linkage according to 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. based on a kind of ultra-magnetic telescopic stepping motor based on four-bar linkage according to claim 1, it is characterized in that: centered by described rotor, symmetry is discoid, or the cellular or spoke-like after loss of weight process.
4. based on a kind of ultra-magnetic telescopic stepping motor based on four-bar linkage according to claim 1, it is characterized in that: the revolute pair between described connecting rod and lever, between connecting rod and rotor, between lever and super-magnetostrictive drive and between lever and stator connects and can be realized by bearing, also can realize in the mode of flexible hinge.
5. based on a kind of ultra-magnetic telescopic stepping motor based on four-bar linkage according to claim 1, it is characterized in that: the described lever playing displacement equations effect can by the displacement equations coefficient regulating the position of fulcrum carry out adjustment (adjusting) lever, the size of step angle can also be regulated simultaneously by the size of the length of regulating connecting rod and rotor diameter.
6. based on a kind of ultra-magnetic telescopic stepping motor based on four-bar linkage according to 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 |
|---|---|---|---|
| CN201520431916.2U CN204681229U (en) | 2015-06-23 | 2015-06-23 | Based on the ultra-magnetic telescopic stepping motor of four-bar linkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520431916.2U CN204681229U (en) | 2015-06-23 | 2015-06-23 | Based on the ultra-magnetic telescopic stepping motor of four-bar linkage |
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| Publication Number | Publication Date |
|---|---|
| CN204681229U true CN204681229U (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520431916.2U Expired - Fee Related CN204681229U (en) | 2015-06-23 | 2015-06-23 | Based on the ultra-magnetic telescopic stepping motor of four-bar linkage |
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| CN (1) | CN204681229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953786A (en) * | 2015-06-23 | 2015-09-30 | 刘淮祥 | Giant magnetostrictive stepper motor based on four-bar linkages |
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2015
- 2015-06-23 CN CN201520431916.2U patent/CN204681229U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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 |
Granted publication date: 20150930 Termination date: 20180623 |
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| CF01 | Termination of patent right due to non-payment of annual fee |