CN210867539U

CN210867539U - Giant magnetostrictive motor

Info

Publication number: CN210867539U
Application number: CN201921787983.2U
Authority: CN
Inventors: 伍虹; 杨妹娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-06-26
Anticipated expiration: 2029-10-23

Abstract

The embodiment of the utility model discloses a giant magnetostrictive motor, which comprises a brake body, a rotating shaft and a push rod; the brake body comprises a shell, a first giant magnetostrictive material rod and an a coil, wherein the first giant magnetostrictive material rod and the a coil are arranged inside the shell, and the first giant magnetostrictive material rod penetrates through the a coil; one end of the push rod is hinged with the first giant magnetostrictive material rod, and the other end of the push rod is connected with the rotating shaft; the first giant magnetostrictive material rod extends and pushes the push rod to move; the first giant magnetostrictive material rod shortens and drives the push rod to reset, and the rotating shaft is static. The utility model provides a giant magnetostrictive motor, not only output power and output torque are big, and control accuracy is high moreover. The small displacement and the large output force of the brake body are converted into large displacement, large output force or large moment devices of which the displacements can be accumulated infinitely through the conversion mechanism, and the application of the giant magnetostrictive material is expanded.

Description

Giant magnetostrictive motor

Technical Field

The embodiment of the utility model provides a relate to motor technical field, concretely relates to giant magnetostrictive motor.

Background

The giant magnetostrictive material has the advantage of large output force, and can generate 1700 Newton force per square centimeter of the material. However, the conventional giant magnetostrictive actuator is generally an actuator with small displacement and reciprocating motion, the displacement amount is generally not more than hundreds of micrometers, the displacement amount is small, and the applicable range is limited.

In order to expand the displacement range of a giant magnetostrictive actuator, previous researches develop a giant magnetostrictive peristaltic linear motor, wherein the outer part of a giant magnetostrictive rod in the motor is tightly connected with a long cylinder, a magnetized giant magnetostrictive material becomes thin and extends in the process that a magnetic field is gradually transferred from one end of the giant magnetostrictive material to the other end, and the part of the magnetostrictive material becomes thick and is tightly fixed on the cylinder after the magnetic field disappears. However, the giant magnetostrictive peristaltic linear motor is still in the research and development stage at present and is not in practical application, and the current giant magnetostrictive peristaltic linear motor has the following problems: (1) the diameter direction of the giant magnetostrictive material shrinks very little, so the processing precision requirements on the dimension of the giant magnetostrictive material and the dimension of the outer barrel wall are extremely strict in the aspect of matching of giant magnetostrictive material and outer barrel closing, which puts a rigorous requirement on processing, and especially if larger displacement is required, the length of the outer barrel is longer, and the requirement on processing is difficult to meet; (2) the giant magnetostrictive material and the outer cylinder wall are fixed by static friction, so that the hard and brittle giant magnetostrictive material is easy to damage after long-term work; (3) the output force is limited by the static friction force between the giant magnetostrictive material and the outer cylinder wall, so that larger output force cannot be generated; (4) it is impossible to manufacture an actuator having a large displacement amount due to limitations of machining accuracy and the like, and it is impossible to manufacture a large output force actuator having a wireless stroke.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the present invention provides a giant magnetostrictive motor to solve the problem of small displacement of the giant magnetostrictive actuator in the prior art.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

the embodiment of the utility model provides a giant magnetostrictive motor, which comprises a brake body, a rotating shaft and a push rod;

the brake body comprises a shell, a first giant magnetostrictive material rod and an a coil, wherein the first giant magnetostrictive material rod and the a coil are arranged in the shell, the first giant magnetostrictive material rod penetrates through the a coil, and under the action of an alternating magnetic field, the first giant magnetostrictive material rod repeatedly extends and shortens;

one end of the push rod is hinged with the first giant magnetostrictive material rod, and the other end of the push rod is connected with the rotating shaft;

the rotating shaft is locked by the push rod, the first giant magnetostrictive material rod extends and pushes the push rod to move, and the push rod drives the rotating shaft to rotate;

the rotating shaft is loosened by the push rod, the first giant magnetostrictive material rod is shortened and drives the push rod to reset, and the rotating shaft is static;

reciprocating like this, the stopper body drives the rotation axis lasts the rotation.

Preferably, the giant magnetostrictive motor further comprises a first hinge, a second hinge and a hinge lever, wherein one end of the hinge lever is hinged to the push rod, the other end of the hinge lever is hinged to the shell through the first hinge, the second hinge is located between the push rod and the first hinge and close to the first hinge, and the hinge lever is hinged to the first giant magnetostrictive material rod through the second hinge.

Preferably, the brake body further comprises a first belleville spring and a first pressing screw; the first pressure applying screw is installed at one end, far away from the hinge lever, of a first super-magnetic material rod, the first belleville spring is installed at one end, close to the hinge lever, of the first super-magnetic material rod, and the first pressure applying screw is used for testing the pressure of the first super-magnetic material rod and enabling the first belleville spring to be in a compression state.

Preferably, the super magnetostrictive motor further comprises a first locking device; the push rod locks or unlocks the rotating shaft through the first locking device.

Preferably, the first locking device is a one-way bearing, the rotating shaft is fixed to an inner ring of the one-way bearing, and the push rod is fixed to an outer ring of the one-way bearing;

when the push rod moves, the push rod locks the rotating shaft to rotate through the one-way bearing;

when the push rod moves reversely, the push rod drives the one-way bearing to rotate, and the one-way bearing loosens the rotating shaft.

Preferably, the first locking device comprises a first semicircular conductor, a second semicircular conductor and a b coil, and the first semicircular conductor and the second semicircular conductor are both fixed on the push rod;

the first semi-circular conductor and the second semi-circular conductor are oppositely arranged on the outer side of the rotating shaft, and gaps are formed between the first semi-circular conductor and the second semi-circular conductor; the outer sides of the first semi-circular conductor and the second semi-circular conductor are sleeved with coils b;

when current passes through the coil b, the first semi-circular conductor and the second semi-circular conductor attract each other and lock the rotating shaft; when no current flows through the coil b, the first semicircular conductor and the second semicircular conductor release the rotating shaft.

Preferably, the first locking device comprises a second giant magnetostrictive material rod, a c coil, a second compression screw, an a bearing, a second belleville spring and an output rod;

the inner ring of the bearing a is fixed on the rotating shaft, and the outer ring of the bearing a is fixed on the push rod;

a second giant magnetostrictive material rod is arranged inside one end, close to the rotating shaft, of the push rod, and a c coil is sleeved outside the second giant magnetostrictive material rod;

one end of the second giant magnetostrictive material rod is provided with the second pressurizing screw, the other end of the second giant magnetostrictive material rod is fixed with the output rod, and one end of the output rod, which is close to the second giant magnetostrictive material rod, is sleeved with a second butterfly spring; the second pressurizing screw presses the second giant magnetostrictive material rod, and the second butterfly spring is in a compressed state;

a gap is formed between the output rod and the rotating shaft, and the push rod loosens the rotating shaft;

and c, when the coil is electrified, the second giant magnetostrictive material rod extends to enable the output rod to press the rotating shaft, and the push rod locks the rotating shaft.

Preferably, the giant magnetostrictive motor further comprises a locking arm and a motor housing, the rotating shaft is arranged in the motor housing and extends out of the motor housing, one end of the locking arm is fixed on the motor housing, and the other end of the locking arm is locked or loosened by a one-way bearing.

Preferably, the giant magnetostrictive motor further comprises a locking arm and a motor housing, the rotating shaft is arranged in the motor housing and extends out of the motor housing, one end of the locking arm is fixed to the motor housing, and the other end of the locking arm locks or unlocks the rotating shaft through a first locking device;

the first locking device comprises a first semicircular conductor, a second semicircular conductor and a coil b, and the first semicircular conductor and the second semicircular conductor are fixed on the locking arm;

the first locking device comprises a second giant magnetostrictive material rod, a c coil, a second compression screw, an a bearing, a second belleville spring and an output rod;

the inner ring of the bearing a is fixed on the rotating shaft, and the outer ring of the bearing a is fixed on the locking arm;

a second giant magnetostrictive material rod is arranged inside one end, close to the rotating shaft, of the locking arm, and a c coil is sleeved outside the second giant magnetostrictive material rod;

a gap is formed between the output rod and the rotating shaft, and the locking arm loosens the rotating shaft;

and c, when the coil is electrified, the second giant magnetostrictive material rod extends to enable the output rod to press the rotating shaft, and the locking arm locks the rotating shaft.

The embodiment of the utility model provides a have following advantage:

the embodiment of the utility model provides a giant magnetostrictive motor, it includes stopper body, rotation axis and push rod. When the rotating shaft is locked by the push rod, the first giant magnetostrictive material rod extends and pushes the push rod to move, and the push rod drives the rotating shaft to rotate; when the rotating shaft is loosened from the push rod, the first giant magnetostrictive material rod is shortened and drives the push rod to reset, and the rotating shaft is static; the brake body drives the rotating shaft to continuously rotate in such a reciprocating mode, so that the displacement of the giant magnetostrictive material can be accumulated infinitely, the output of large displacement, large output force or large torque is realized, the output force and the output torque are large, the control precision is high, and the application of the giant magnetostrictive material is effectively expanded.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic structural view of a giant magnetostrictive motor according to embodiment 1 of the present invention;

fig. 2 is a schematic perspective view of a giant magnetostrictive motor according to embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a giant magnetostrictive motor according to embodiment 2 of the present invention;

fig. 4 is a schematic perspective view of a giant magnetostrictive motor according to embodiment 3 of the present invention;

fig. 5 is a top view of a giant magnetostrictive motor according to embodiment 3 of the present invention;

fig. 6 is a reference diagram of a usage status of a giant magnetostrictive motor according to embodiment 3 of the present invention;

fig. 7 is a schematic structural diagram of a first locking device of a giant magnetostrictive motor according to embodiment 3 of the present invention;

fig. 8 is another schematic structural diagram of the first locking device of the giant magnetostrictive motor according to embodiment 3 of the present invention;

in the figure: 1. a brake body; 11. a housing; 12. a first bar of giant magnetostrictive material; 13. a, a coil; 14. A first belleville spring; 15. a first pressure applying screw; 2. a rotating shaft; 3. a push rod; 4. a first hinge; 5. A second hinge; 6. a hinge lever; 7. a first locking device; 711. a first semiconductor; 712. a second semi-circular conductor; 713. b, a coil; 721. a second bar of giant magnetostrictive material; 722. c, a coil; 723. a second compression screw; 724. a, a bearing; 725. a second belleville spring; 726. an output rod; 8. a locking arm; 9. A motor housing; 10. a flexible rod.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1 and 2, the present embodiment provides a super magnetostrictive motor that includes a brake body 1, a rotating shaft 2, and a push rod 3.

Specifically, the brake body 1 comprises a shell 11, a first giant magnetostrictive material rod 12 and an a coil 13, wherein the first giant magnetostrictive material rod 12 and the a coil 13 are both arranged inside the shell 11, the first giant magnetostrictive material rod 12 is arranged in the a coil 13 in a penetrating manner, and under the action of an alternating magnetic field, the first giant magnetostrictive material rod 12 repeatedly extends and shortens; one end of the push rod 3 is hinged with the first giant magnetostrictive material rod 12, and the other end is connected with the rotating shaft 2. The push rod 3 and the rotating shaft 2 have two states, namely the push rod 3 locks the rotating shaft 2 or the push rod 3 loosens the rotating shaft 2. It should be noted that, the brake body 1 is used to push the push rod 3 to drive the rotating shaft 2 to rotate, or the brake body 1 drives the push rod 3 to reset.

In the embodiment, when the rotating shaft 2 is locked by the push rod 3, the first giant magnetostrictive material rod 12 extends and pushes the push rod 3 to move, and the push rod 3 drives the rotating shaft 2 to rotate; when the push rod 3 loosens the rotating shaft 2, the first giant magnetostrictive material rod 12 shortens and drives the push rod 3 to reset, and the rotating shaft 2 is static; reciprocating like this, stopper body 1 drives rotation axis 2 and lasts rotatoryly, and stopper body 1 drives rotation axis 2 and lasts rotatoryly promptly to realize that the displacement of super magnetic material can infinitely accumulate, and then realize the output of big displacement, big output power or big moment.

Preferably, the brake body 1 further comprises a first belleville spring 14 and a first pressing screw 15; the first pressing screw 15 is mounted at one end, far away from the hinge lever 6, of the first super-magnetic material rod 12, the first belleville spring 14 is mounted at one end, close to the hinge lever 6, of the first super-magnetic material rod 12, and the first pressing screw 15 presses the first super-magnetic material rod 12 and enables the first belleville spring 14 to be in a compression state, so that the distance for the brake to push the push rod 3 to move is more accurate.

Further preferably, the super magnetostrictive motor further comprises a first locking device 7; the push rod 3 locks or unlocks the rotary shaft 2 by the first locking device 7, which makes the operation of locking or unlocking the rotary shaft 2 by the push rod 3 simpler.

It should be noted that the first locking device 7 has various structures to lock and unlock the rotating shaft 2 by the push rod 3.

1. The first locking device 7 is a one-way bearing, the rotating shaft 2 is fixed on an inner ring of the one-way bearing, and the push rod 3 is fixed on an outer ring of the one-way bearing.

When the push rod 3 moves, the push rod 3 locks the rotating shaft 2 to rotate through the one-way bearing.

When the push rod 3 moves reversely, the push rod 3 drives the one-way bearing to rotate, and the one-way bearing loosens the rotating shaft 2.

It should be noted that various commercially available one-way bearings have a one-way locking function, that is, when the one-way bearing is pushed to rotate freely in one direction, the bearing cannot be pushed to rotate in the other direction. When the first locking device 7 adopts a one-way bearing, and the one-way bearing allows free rotation in the opposite direction, when the one-way bearing rotates in the forward direction, the one-way bearing and the rotating shaft 2 are in a locked state, namely when the magnetostrictive actuator generates thrust to push the one-way bearing 3 to rotate in the forward direction, the magnetostrictive actuator drives the optical axis to rotate and can do work outwards; when the brake body 1 is contracted, the one-way bearing is in a released state with respect to the rotary shaft 2, so that the one-way bearing and the push rod 3 are pulled back to the initial position, but the rotary shaft 2 cannot be pulled back to the initial position. Of course, it is clear that enough displacement is needed to enable the one-way bearing to reach the rotation locking state, if the displacement is too small, the one-way bearing cannot reach the locking gap requirement, and the one-way bearing cannot be locked. Each one-way bearing has different requirements on the clearance for achieving locking, the one-way bearing with small clearance can be selected, and enough large displacement can be designed or large displacement can be realized through a displacement amplifying mechanism when the giant magnetostrictive actuator is designed so as to meet the requirement on the locking clearance of the one-way bearing.

2. Referring to fig. 8, the first locking device 7 includes a first semicircular conductor 711, a second semicircular conductor 712, and a b-coil 713, and the first semicircular conductor 711 and the second semicircular conductor 712 are both fixed to the push rod 3.

The first semicircular conductor 711 and the second semicircular conductor 712 are oppositely arranged on the outer side of the rotating shaft 2, and a gap is formed between the first semicircular conductor 711 and the second semicircular conductor 712; the first and second

semicircular conductors

711 and 712 are each provided with a b-coil 713 on the outer side.

When a current is passed through the b-coil 713, the first semicircular conductor 711 and the second semicircular conductor 712 attract each other and lock the rotating shaft 2; when no current flows through the b-coil 713, the first semicircular conductor 711 and the second semicircular conductor 712 release the rotation shaft 2.

3. Referring to fig. 7, the first locking device 7 includes a second rod 721 of a giant magnetostrictive material, a c-coil 722, a second pressing screw 723, an a-bearing 724, a second belleville spring 725, and an output rod 726.

Wherein, the inner ring of the a bearing 724 is fixed on the rotating shaft 2, and the outer ring of the a bearing 724 is fixed on the push rod 3; a second giant magnetostrictive material rod 721 is arranged inside one end of the push rod 3 close to the rotating shaft 2, and a c coil 722 is sleeved outside the second giant magnetostrictive material rod 721; a second pressurizing screw 723 is installed at one end of the second giant magnetostrictive material rod 721, an output rod 726 is fixed at the other end of the second giant magnetostrictive material rod 721, and a second belleville spring 725 is sleeved at one end, close to the second giant magnetostrictive material rod 721, of the output rod 726; the second pressurizing screw 723 pressurizes the second metamaterial rod 721, and the second belleville spring 725 is in a compressed state.

When the c-coil 722 is not energized, a gap is provided between the output rod 726 and the rotary shaft 2, and the push rod 3 releases the rotary shaft 2.

When the c-coil 722 is energized, the second rod 721 is extended to press the output rod 726 against the rotating shaft 2, and the push rod 3 locks the rotating shaft 2.

It should be noted that fig. 7 and 8 show a schematic structural view of the locking arm 8 for locking or unlocking the rotating shaft 2 by the first locking device 7, and the structure of the push rod 3 for locking or unlocking the rotating shaft 2 by the first locking device 7 is the same as that of the locking arm 8, as shown in fig. 7 and 8.

The three structures of the first locking device 7 can realize the locking or the releasing of the push rod 3 on the rotating shaft 2, and the operation is convenient.

According to the giant magnetostrictive motor provided by the embodiment, the brake body 1 drives the rotating shaft 2 to continuously rotate, so that the displacement of the giant magnetostrictive material can be infinitely accumulated, the output of large displacement, large output force or large torque is realized, the output force and the output torque are large, the control precision is high, and the application of the giant magnetostrictive material is effectively expanded.

Example 2

This embodiment provides another giant magnetostrictive motor, and the same parts as those in embodiment 1 will not be described herein again, and only different parts will be described below.

As shown in fig. 3, the giant magnetostrictive motor further includes a first hinge 4, a second hinge 5 and a hinge lever 6, wherein one end of the hinge lever 6 is hinged to the push rod 3, the other end of the hinge lever is hinged to the housing 11 through the first hinge 4, the second hinge 5 is located between the push rod 3 and the first hinge 4 and is close to the first hinge 4, and the hinge lever 6 is hinged to the first giant magnetostrictive material rod 12 through the second hinge 5.

In practical design, the brake body 1 and the push rod 3 in fig. 3 can also be designed as a mechanism with displacement amplification, and particularly when a one-way bearing is adopted as the first locking device 7, the requirement of the locking clearance of the one-way bearing can be met by large displacement. At present, a lever amplification mechanism, an arch amplification mechanism, an angle amplification mechanism and the like with flexible hinges are generally adopted for amplifying the tiny displacement, and all the mechanisms can be adopted to realize the amplification of the displacement.

In this embodiment, the dimension of the first giant magnetostrictive material rod 12 is Φ 10 × 100 mm, the magnification of the lever is 3.5 times, and the distance from the output position of the lever to the axis of the rotating shaft 2 is 5 cm. When the operating frequency of the brake body 1 is 50 hz, the rotational speed of the rotating shaft 2 in the forward direction is 3.3 rpm, and the maximum output torque is 1430 Ncm.

Example 3

As shown in fig. 5 and 6, the first bar of giant magnetostrictive material 12 is also hinged to the push rod 3 by means of the flexible rod 10, the angle between the flexible rod 10 and the push rod 3 being 90 degrees. The linear displacement generated by the brake body 1 pushes the push rod 3 to generate micro rotation around the central shaft of the rotating shaft 2 through the flexible rod 10, and drives the rotating shaft 2 to generate micro rotation; when the push rod 3 loosens the rotating shaft 2, the rotation of the push rod 3 cannot drive the rotating shaft 2 to rotate to generate output torque.

As shown in fig. 4, 5 and 6, the giant magnetostrictive motor further includes a locking arm 8 and a motor housing 9, the rotating shaft 2 is disposed in the motor housing 9 and extends out of the motor housing 9, one end of the locking arm 8 is fixed to the motor housing 9, and the other end locks or unlocks the rotating shaft 2 by the first locking device 7.

It should be noted that there are many ways for the first locking device 7 to lock or unlock the rotating shaft 2, and only the following three ways are described here.

In the first way, the locking arm 8 locks or unlocks the rotating shaft 2 through a one-way bearing.

In a second way, as shown in fig. 8, the first locking device 7 includes a first semicircular conductor 711, a second semicircular conductor 712, and a b-coil 713, and both the first semicircular conductor 711 and the second semicircular conductor 712 are fixed to the locking arm 8; the first and second

semicircular conductors

711 and 712 are oppositely disposed outside the rotating shaft 2, and a gap is formed between the first and second

semicircular conductors

711 and 712; the first and second

semicircular conductors

711 and 712 are each provided with a b-coil 713 on the outer side.

In the initial state, no current flows through the b-coil 713, the rotation shaft 2 can freely rotate around the center axis, and the lock arm 8 can also freely rotate around the center axis. When a current flows through the b-coil 713, the first semicircular conductor 711 on the left and the second semicircular conductor 712 on the right attract each other through a gap therebetween, thereby causing the rotating shaft 2 to be locked. At this time, when the locking arm 8 is pushed to rotate around the central shaft, the rotating shaft 2 is rotated. However, when the lock arm 8 is fixed to the motor housing 9, the rotary shaft 2, the lock arm 8, the first lock device 7, and the motor housing 9 are locked, and the rotary shaft 2 cannot rotate.

In a third mode, as shown in fig. 7, the first locking device 7 comprises a second super-magnetostrictive material rod 721, a c-coil 722, a second compression screw 723, an a-bearing 724, a second belleville spring 725 and an output rod 726; the inner ring of the a-bearing 724 is fixed on the rotating shaft 2, and the outer ring of the a-bearing 724 is fixed with the locking arm 8; a second giant magnetostrictive material rod 721 is arranged inside one end of the locking arm 8 close to the rotating shaft 2, and a c coil 722 is sleeved outside the second giant magnetostrictive material rod 721; a second pressurizing screw 723 is installed at one end of the second giant magnetostrictive material rod 721, an output rod 726 is fixed at the other end of the second giant magnetostrictive material rod 721, and a second belleville spring 725 is sleeved at one end, close to the second giant magnetostrictive material rod 721, of the output rod 726; the second pressurizing screw 723 pressurizes the second metamaterial rod 721, and the second belleville spring 725 is in a compressed state. Because a gap is formed between the output rod 726 and the rotating shaft 2, the locking arm 8 releases the rotating shaft 2; when current is applied to the c-coil 722, the second rod 721 of giant magnetostrictive material is extended so that the output rod 726 presses against the rotating shaft 2, and the locking arm 8 locks the rotating shaft 2.

It is noted that the second super magnetostrictive material rod 721 is prestressed appropriately by the second compression screw 723 and the second belleville spring 725 is compressed, but the output rod 726 is not in contact with the rotating shaft 2 at this time, that is, the rotating shaft 2 is in a released state. When current passes through the c-coil 722, the second supermagnetic material rod 721 is extended to push the output rod 726 to press against the rotating shaft 2, i.e. the locking arm 8 is locked with the rotating shaft 2, if the locking arm 8 is pushed around the central axis of the rotating shaft 2, the rotating shaft 2 will rotate along with the rotating shaft; however, since the locking arm 8 is fixedly connected to the motor housing 9, the motor housing 9 and the locking arm 8, the first locking device 7 and the rotating shaft 2 are locked, and the rotating shaft 2 cannot rotate.

The working principle of the giant magnetostrictive motor provided by the embodiment is as follows:

step 1, a locking arm 8 loosens a rotating shaft 2, and a push rod 3 is in an initial angle position; the push rod 3 locks the rotating shaft 2, and the brake body 1 generates displacement or force to push the push rod 3 to drive the rotating shaft 2 to generate a micro-angle forward rotation and drive a load to do work outwards;

step 2, locking the rotating shaft 2 by the locking arm 8, wherein the rotating shaft 2 cannot rotate at the moment; then, the push rod 3 releases the rotating shaft 2, and the super magnetostrictive actuator generates a reverse displacement or force to pull the first locking device 7 and the push rod 3 back to the initial angular position. At this time, since the rotary shaft 2 is locked by the locking arm 8, the rotary shaft 2 is not returned following the rotation of the push rod 3.

And 3, continuously repeating the step 1 and the step 2, wherein the rotating shaft 2 continuously rotates around the central shaft of the rotating shaft 2, and the rotating shaft 2 can drive an external load to rotate and apply work to the outside.

It should be noted that, as shown in fig. 5 and 6, after the cycle of

steps

1 and 2, the initial position of the central axis of the push rod 3 in fig. 5 is rotated to the position in fig. 6, assuming that the distance between the flexible rod 10 and the central axis of the rotating shaft 2 is R, the displacement generated by the brake body 1 each time is Δ L, and the generated output force is F, if the operating frequency of the brake body 1 is F, the rotation speed of the motor is 60F × Δ L/(2 pi R) (revolutions per minute), and the output torque is FR.

In this embodiment, the operation is performed according to fig. 5, wherein the dimensions of the terbium dysprosium iron giant magnetostrictive material used for the first giant magnetostrictive material rod 12 in the brake body 1 and the second giant magnetostrictive material rod 721 in the first locking device 7 are 20 mm in diameter and 100 mm in length. The first belleville spring 14 and the second belleville spring 725 are each prestressed at about 10 MPa. The flexible rod 10 is at a distance of 10 cm from the central axis of the rotation axis 2. When the brake body 1 works at the frequency of 50 Hz, the rotating speed of the rotating shaft 2 reaches 0.04 rpm, and the maximum output torque is 40000 Ncm.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A giant magnetostrictive motor is characterized by comprising a brake body, a rotating shaft and a push rod;

2. The giant magnetostrictive motor according to claim 1, further comprising a first hinge, a second hinge, and a hinge lever, wherein one end of the hinge lever is hinged to a push rod, the other end of the hinge lever is hinged to the housing through the first hinge, the second hinge is located between the push rod and the first hinge and near the first hinge, and the hinge lever is hinged to the first giant magnetostrictive material rod through the second hinge.

3. The super magnetostrictive motor according to claim 2, wherein the brake body further comprises a first belleville spring and a first pressure screw; the first pressure applying screw is installed at one end, far away from the hinge lever, of a first super-magnetic material rod, the first belleville spring is installed at one end, close to the hinge lever, of the first super-magnetic material rod, and the first pressure applying screw is used for testing the pressure of the first super-magnetic material rod and enabling the first belleville spring to be in a compression state.

4. The giant magnetostrictive motor according to claim 1, further comprising a first locking device; the push rod locks or unlocks the rotating shaft through the first locking device.

5. The super magnetostrictive motor according to claim 4, wherein the first locking means is a one-way bearing, the rotating shaft is fixed to an inner ring of the one-way bearing, and the push rod is fixed to an outer ring of the one-way bearing;

6. The super magnetostrictive motor according to claim 4, wherein the first locking device comprises a first semi-circular conductor, a second semi-circular conductor and a b-coil, and the first semi-circular conductor and the second semi-circular conductor are fixed to the push rod;

7. The super magnetostrictive motor according to claim 4, wherein the first locking means comprises a second bar of super magnetostrictive material, a c-coil, a second compression screw, an a-bearing, a second belleville spring and an output rod;

8. The giant magnetostrictive motor according to claim 5, 6 or 7, further comprising a locking arm and a motor housing, wherein the rotating shaft is disposed in and extends out of the motor housing, one end of the locking arm is fixed to the motor housing, and the other end of the locking arm locks or unlocks the rotating shaft through a one-way bearing.