CN201947197U - Radial and axial multi-vibrator ultrasonic linear motor - Google Patents
Radial and axial multi-vibrator ultrasonic linear motor Download PDFInfo
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- CN201947197U CN201947197U CN2011200789194U CN201120078919U CN201947197U CN 201947197 U CN201947197 U CN 201947197U CN 2011200789194 U CN2011200789194 U CN 2011200789194U CN 201120078919 U CN201120078919 U CN 201120078919U CN 201947197 U CN201947197 U CN 201947197U
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Abstract
The utility model discloses a radial and axial multi-vibrator ultrasonic linear motor, and mainly comprises a motor stator provided with a center hole and a motor rotor penetrating through the center hole. The motor stator mainly comprises a stator shell, and a radial vibrator groove and an axial vibrator groove which are arranged on the stator shell, and the radial vibrator groove and the axial vibrator groove are arranged in a radial mode and in an axial mode respectively along the center hole. One end of the radial vibrator groove is communicated with the center hole, and the left side or the right side of the radial vibrator groove is provided with a spring groove which is communicated with the radial vibrator groove. The axial vibrator groove which is positioned on the right side or the left side of the radial vibrator groove is communicated with the radial vibrator groove. Radial vibrators are disposed in the radial vibrator groove, and axial vibrators are arranged in the axial vibrator groove. Springs are arranged in the spring groove. The radial and axial multi-vibrator ultrasonic linear motor has large thrust, high efficiency, small loss, fast speed and long service life.
Description
Technical field
The utility model relates to a kind of location of various occasions such as accurate measurement, metering, business automation equipment, industrial electrical equipment, household electrical appliance, robot, automobile, aerospace equipment and axial many oscillators ultrasonic linear motor in footpath of driving of being applicable to.
Background technology
Ultrasonic linear motor is to utilize the piezoelectric crystal to issue living deformation in External Electrical Field, produces straight-line motor as actuating force.This ultrasonic linear motor has following characteristics:
1, it does not need as other kind linear electric motors, is to be subjected to electrodynamic principle according to current in magnetic field, and electric energy is converted to straight-line mechanical energy.
2, do not have stator and mover the part coil and iron core, simple in structure, volume is little, in light weight, easily manufactured.
3, not affected by magnetic fields, do not generate electromagnetic waves.
4, moment is big, response is fast, but low cruise, and speed is easy to control.
5, step pitch is little, precision is high.
Ultrasonic linear motor is applicable to the location and the driving of various occasions such as accurate measurement, metering, business automation equipment, industrial electrical equipment, household electrical appliance, robot, automobile, aerospace equipment.
The operation principle of ultrasonic linear motor is to utilize the inverse piezoelectric effect of piezoelectric.If piezoelectric crystal is placed external electric field, because electric field action can cause crystals positive and negative charge displacement of center of gravity, this polarization displacement causes crystal generation deformation again.If the polarity of extra electric field is consistent with the polarised direction of piezoelectrics, then the length of piezoelectrics and electric field vertical direction increases; Otherwise, when the polarity of extra electric field opposite with the polarised direction of piezoelectrics, the contraction in length of piezoelectrics and electric field vertical direction then.After removing electric field, piezoelectrics return to normal.Repeatedly apply electric field and remove electric field to piezoelectrics, piezoelectrics will repeatedly produce displacement.This displacement is exactly the power of ultrasonic linear motor.
But existing ultrasonic linear motor is because structure and power transfer mode, has that thrust is little, efficient is low, loss is big, the life-span is short, speed waits defective slowly, needs improvement.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, provides that a kind of thrust is big, efficient is high, loss is little, speed is fast, the axial many oscillators ultrasonic linear motor in the footpath of long service life.
The purpose of this utility model is achieved through the following technical solutions: the axial many oscillators ultrasonic linear motor in footpath, main by the motor stator that is provided with centre bore and run through the electric mover that is arranged in the centre bore and constitute, it is characterized in that, described motor stator mainly by stator case and be arranged on the stator case radially oscillator groove and axially the oscillator groove constitute, described radially oscillator groove and axially the oscillator groove be along centre bore respectively and radially be provided with and axially be provided with; Described radially oscillator groove one end is connected with centre bore, and radially the left side or the right side of oscillator groove are provided with coupled logical spring groove; Axially the oscillator groove is positioned at the radially right side or the left side of oscillator groove, and is connected with oscillator groove radially; Be provided with radially oscillator in the described radially oscillator groove, axially be provided with axial oscillator in the oscillator groove, be provided with spring in the spring groove.
Described radially oscillator groove, be arranged on the left side of oscillator groove radially spring groove, be arranged on oscillator groove right side radially axial oscillator groove, be arranged on radially oscillator in the oscillator groove radially, be arranged on the axial oscillator in the axial oscillator groove and the spring that is arranged in the spring groove constitutes left Drive Structure; Described radially oscillator groove, be arranged on oscillator groove right side radially spring groove, be arranged on oscillator groove left side radially axial oscillator groove, be arranged on radially oscillator in the oscillator groove radially, be arranged on the axial oscillator in the axial oscillator groove and the spring that is arranged in the spring groove constitutes right Drive Structure; Only set up left Drive Structure or right Drive Structure when motor only needs folk prescription to the function of operation, then left and right sides Drive Structure all will be provided with when the function of the forward and reverse operation of needs, and promptly left Drive Structure and right Drive Structure all are at least one.
As a kind of optimal way of the present utility model, described left Drive Structure is 4, and is divided into two groups, and two left Drive Structure of every group are symmetrical arranged along centre bore; Described right Drive Structure is 4, and is divided into two groups, and two right Drive Structure of every group are symmetrical arranged along centre bore; The left Drive Structure in the utility model and the number of right Drive Structure are not limited thereto, and also can select separately according to actual needs.
Described radially oscillator groove is away from the outer recessed formation draw-in groove of an end of centre bore, and radially oscillator constitutes fixture block away from an end evagination of centre bore, and described fixture block is arranged in the draw-in groove; Adopt this kind structure, make that radially oscillator is positioned at radially oscillator groove all the time in the process of motion; Further, described fixture block is near also being provided with spring between end end face of centre bore and the draw-in groove, thereby after removing the electric field of oscillator radially, radially oscillator can be got back to the radially top of oscillator groove under the elastic force effect of spring.
Described radially oscillator all links to each other with external power source by power line with axial oscillator, and described external power source is the power supply and the control power supply of motor; Supply unit and control device are controlled time, vector, frequency and the logical order of each axial oscillator of motor and the radially energising of oscillator respectively according to setting in advance, thus speed, thrust, displacement, the traffic direction of control motor; Above-mentioned parameter can set in advance and can revise at any time according to instructions for use.
Described stator case is mainly snapped together by stator case A and stator case B and constitutes, and is convenient to installation and removal, and the stator case in the utility model is not limited to be assembled by two housings, also can be according to the actual conditions otherwise designed.
Be inlaid with several balls on the inwall of described centre bore, the cylindrical of described electric mover is provided with the chute that is complementary with the ball position vertically, and electric mover forms by chute and ball and motor stator and is slidingly matched; Owing to adopted this kind structure, thereby reduced the electric mover suffered frictional force of in centre bore, moving.
The material of above-mentioned electric mover and motor stator parts can be that metal material also can be nonmetallic materials.
The piezoelectricity part that above-mentioned radially oscillator and axial oscillator process for the piezoelectric in the existing ultrasonic linear motor, past elongated lengthwise when having the high-frequency electric field of applying, lose the characteristic that returns to nature behind the electric field, because piezoelectric belongs to existing mature technology, does not repeat them here.
Above-mentioned radially oscillator groove preferentially is designed to the axis perpendicular to centre bore, because the electronics mover is concentric setting with centre bore, promptly radially the oscillator groove preferentially is designed to axis perpendicular to the electronics mover, in actual use, as required low-angle inclination angle can be arranged; Described axial oscillator groove is parallel to the axis of electronics mover.
Method of work based on the axial many oscillators ultrasonic linear motor in above-mentioned footpath is characterized in that, comprises left driving process and right driving process, wherein:
Left side driving process: under the motor initial condition, radially oscillator in its left Drive Structure applies high-frequency electric field, and radially oscillator extends along its length, owing to be subjected to the radially restriction of oscillator groove, radially oscillator radially forms tight fit between oscillator and the electric mover to the elongation of electric mover direction; The axial oscillator on oscillator right side applies high-frequency electric field to being positioned at radially then, axially oscillator extends along its length, owing to be subjected to the restriction of axial oscillator groove, axially oscillator is to oscillator direction elongation radially and exert pressure, thereby promote radially oscillator, and then it is mobile to the left to drive electric mover; After driving finishes, remove radially oscillator and the axially high-frequency electric field of oscillator, radially oscillator and axial oscillator return to normal, and under the effect of spring, move to the rightmost side;
Right driving process: after electric mover moves left to extreme position, radially oscillator in the Drive Structure applies high-frequency electric field to the right, radially oscillator extends along its length, owing to be subjected to the radially restriction of oscillator groove, radially oscillator radially forms tight fit between oscillator and the electric mover to the elongation of electric mover direction; The axial oscillator in oscillator left side applies high-frequency electric field to being positioned at radially then, axially oscillator extends along its length, owing to be subjected to the restriction of axial oscillator groove, axially oscillator is to oscillator direction elongation radially and exert pressure, thereby promote radially oscillator, and then it is mobile to the right to drive electric mover;
Repeat above-mentioned left driving process and right driving process, electric mover promptly carries out continuous straight line back and forth movement with respect to motor stator.
Above-mentioned machine operation method is at the situation of having only a left Drive Structure and a right Drive Structure, in real work, usually design a plurality of left Drive Structure and right Drive Structure as required, its drive principle is all set up based on the above method, does not repeat them here.
In sum, the beneficial effects of the utility model are:
(1) the utility model has bigger thrust with respect to existing ultrasonic linear motor under equal input power;
(2) the utility model can have the higher speed of service with respect to existing ultrasonic linear motor;
(3) the utility model has higher operating efficiency with respect to existing ultrasonic linear motor;
(4) the utility model is with respect to existing ultrasonic linear motor, and working loss is little, longer service life.
Description of drawings
Fig. 1 is a cutaway view of the present utility model;
Fig. 2 be among Fig. 1 A to structural representation;
Fig. 3 is the utility model cutaway view in embodiment 1.
Mark and corresponding parts title in the accompanying drawing: 1-electric mover; 2-radially oscillators; 3-axially oscillators; 4-spring; 7-power line; 8-stator case A; 9-stator case B; 10-ball; 12-radially oscillator A; 13-radially oscillator B; 14-radially oscillator C; 15-radially oscillator D; 16-axially oscillator A; 17-axially oscillator B; 18-axially oscillator C; 19-axially oscillator D; 20-radially oscillator E; 21-radially oscillator F; 22-radially oscillator G; 23-radially oscillator H; 24-axially oscillator E; 25-axially oscillator F; 26-axially oscillator G; 27-axially oscillator H.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited only to this.
Embodiment:
As illustrated in fig. 1 and 2, the utility model is mainly by the motor stator that is provided with centre bore and run through the electric mover 1 that is arranged in the centre bore and constitute, described motor stator mainly by stator case and be arranged on the stator case radially oscillator groove and axially the oscillator groove constitute, described stator case is mainly snapped together by stator case A8 and stator case B9 and constitutes, and described radially oscillator groove and axial oscillator groove are radially setting and axial the setting along centre bore respectively; Described radially oscillator groove one end is connected with centre bore, and radially the left side or the right side of oscillator groove are provided with coupled logical spring groove; Axially the oscillator groove is positioned at the radially right side or the left side of oscillator groove, and is connected with oscillator groove radially; Be provided with radially oscillator 2 in the described radially oscillator groove, axially be provided with axial oscillator 3 in the oscillator groove, be provided with spring 4 in the spring groove.
In the utility model radially the oscillator groove, be arranged on the spring groove in the left side of oscillator groove radially, and be arranged on radially that the axial oscillator groove on oscillator groove right side constitutes left Drive Structure, by radially oscillator 2, axial oscillator 3 and spring 4 are set therein, be used to drive the electronics mover to left movement; In the utility model radially the oscillator groove, be arranged on the radially spring groove on oscillator groove right side, and be arranged on radially that the axial oscillator groove of oscillator groove constitutes right Drive Structure, by radially oscillator 2, axial oscillator 3 and spring 4 are set therein, be used to drive the electronics mover and move right.Only set up left Drive Structure or right Drive Structure when motor only needs folk prescription to the function of operation, then left and right sides Drive Structure all will be provided with when the function of the forward and reverse operation of needs, and promptly left Drive Structure and right Drive Structure all are at least one.
Radially the oscillator groove is away from the outer recessed formation draw-in groove of an end of centre bore, radially oscillator 2 constitutes fixture block away from an end evagination of centre bore, described fixture block is arranged in the draw-in groove, be used for will be radially oscillator 2 be fixed on radially oscillator groove, make it can be from radially not breaking away from the oscillator groove in the process of motion; Also be provided with spring 4 between one end end face of the close centre bore of fixture block and the draw-in groove, be used for radially resetting of oscillator 2; Radially oscillator 2 all links to each other with external power source by power line 7 with axial oscillator 3, is used for to radially oscillator 2 and axial oscillator 3 apply high magnetoelectricity field; Be inlaid with several balls 10 on the inwall of described centre bore, the cylindrical of described electric mover 1 is provided with the chute that is complementary with ball 10 positions vertically, thereby has reduced the electric mover 1 suffered frictional force of moving in centre bore.
Above-mentioned left Drive Structure and right Drive Structure number can change according to actual conditions, and symmetry or asymmetric being distributed on the stator case respectively.Now be 4 at left Drive Structure and right Drive Structure, and be divided into two groups separately, every group two left Drive Structure or right Drive Structure are further set forth operation principle of the present utility model and process thereof all along the symmetrically arranged situation of centre bore; Distinguish for convenience, as shown in Figure 3, with 4 in left Drive Structure oscillator radially oscillator A12, radially oscillator B13, radially oscillator C14, oscillator D15 radially of called after respectively radially, 4 with axial oscillator A16 that radially oscillator is corresponding respectively, axially oscillator B17, axial oscillator C18, axial oscillator D19; With 4 in right Drive Structure oscillator radially oscillator E20, radially oscillator F21, radially oscillator G22, oscillator H23 radially of called after respectively radially, 4 with axial oscillator E24 that radially oscillator is corresponding respectively, axially oscillator F25, axial oscillator G26, axial oscillator H27.
1. under the motor initial condition, give in the left Drive Structure radially oscillator A12 and radially oscillator B13 apply high-frequency electric field, radially oscillator A12 and radially oscillator B13 extend along its length, owing to be subjected to the radially restriction of oscillator groove apical position, radially oscillator A12 and radially oscillator B13 can only extend to the mover axis direction, consequently radially oscillator A12 contacts electric mover 1 with oscillator B13 radially, and electric mover 1 exerted pressure oscillator A12 and radially form tight fit between oscillator B13 and the electric mover 1 radially;
Apply high-frequency electric field 2. for axial oscillator A16 and axial oscillator B17, axially oscillator A16 and axial oscillator B17 extend along its length, owing to be subjected to the position limit of axial oscillator groove right-hand member, axially oscillator A16 and axially oscillator B17 direction elongation to the left, consequently, axially oscillator A16 and axial oscillator B17 promote radially oscillator A12 and radially oscillator B13, and then it is mobile to the left to drive electric mover 1;
3. give radially oscillator C14 and radially oscillator D15 apply high-frequency electric field, radially oscillator C14 and radially oscillator D15 extend along its length, owing to be subjected to the radially restriction of oscillator groove apical position, radially oscillator C14 and radially oscillator D15 can only extend to electric mover 1 axis direction, consequently radially oscillator C14 contacts electric mover 1 with oscillator D15 radially, and electric mover 1 exerted pressure oscillator C14 and radially form tight fit between oscillator D15 and the electric mover 1 radially;
4. remove oscillator A12 radially, radially oscillator B13, axially oscillator A16 and the axial electric field of oscillator B17, radially oscillator A12, radially oscillator B13, axially oscillator A16 and axially oscillator B17 return to normality, and under the effect of spring 4, move to the rightmost side;
Apply high-frequency electric field 5. for axial oscillator C18 and axial oscillator D19, axially oscillator C18, axial oscillator D19 extend along its length, owing to be subjected to the position limit of axial oscillator groove right-hand member, axially oscillator C18 and axially oscillator D19 direction elongation to the left, consequently axially oscillator C18 and axial oscillator D19 promote radially oscillator C14 and radially oscillator D15, and then it is mobile to the left to drive electric mover 1;
6. give once more radially oscillator A12 and radially oscillator B13 apply high-frequency electric field, it is extended to electric mover 1 axis direction, electronics mover 1 is exerted pressure, and forms tight fit between the electronics mover 1;
7. remove oscillator C14 radially, radially oscillator D15, axially oscillator C18 and the axial electric field of oscillator D19, radially oscillator C14, radially oscillator D15, axially oscillator C18 and axial oscillator D19, and under the effect of spring 4, move to the rightmost side.
Repeat above step, electric mover 1 promptly carries out continuous rectilinear motion with respect to motor stator, and its traffic direction is that electric mover 1 moves to the left.
According to above-mentioned principle, radially oscillator E20 in the right Drive Structure, radially oscillator F21, radially oscillator G22, radially oscillator H23, axially oscillator E24, axially oscillator F25, axially oscillator G26, the axial action step of oscillator H27 are set, can realize that promptly electric mover 1 moves to the right, its operation principle is identical with left Drive Structure, does not repeat them here.
Footpath supply unit of axial many oscillators ultrasonic linear motor and control device give respectively axial oscillator and radially oscillator power supply is provided; Supply unit and control device are controlled to time, vector, frequency and the logical order of oscillator and the radially energising of oscillator motor shaft respectively according to setting in advance, thus speed, thrust, displacement, the traffic direction of control motor; Above-mentioned parameter can set in advance and can revise at any time according to instructions for use.
The utility model can be by changing the axial oscillator and the physical dimension of oscillator and corresponding component radially, thus the thrust and the speed of change motor.
As mentioned above, just can realize the utility model preferably.
Claims (9)
- The footpath axial many oscillators ultrasonic linear motor, main by the motor stator that is provided with centre bore and run through the electric mover (1) that is arranged in the centre bore and constitute, it is characterized in that, described motor stator mainly by stator case and be arranged on the stator case radially oscillator groove and axially the oscillator groove constitute, described radially oscillator groove and axially the oscillator groove be along centre bore respectively and radially be provided with and axially be provided with; Described radially oscillator groove one end is connected with centre bore, and radially the left side or the right side of oscillator groove are provided with coupled logical spring groove; Axially the oscillator groove is positioned at the radially right side or the left side of oscillator groove, and is connected with oscillator groove radially; Be provided with radially oscillator (2) in the described radially oscillator groove, axially be provided with axial oscillator (3) in the oscillator groove, be provided with spring (4) in the spring groove.
- 2. the axial many oscillators ultrasonic linear motor in footpath according to claim 1, it is characterized in that, described radially oscillator groove, be arranged on the left side of oscillator groove radially spring groove, be arranged on oscillator groove right side radially axial oscillator groove, be arranged on radially oscillator (2) in the oscillator groove radially, be arranged on the axial oscillator (3) in the axial oscillator groove and the spring (4) that is arranged in the spring groove constitutes left Drive Structure; Described radially oscillator groove, be arranged on oscillator groove right side radially spring groove, be arranged on oscillator groove left side radially axial oscillator groove, be arranged on radially oscillator (2) in the oscillator groove radially, be arranged on the axial oscillator (3) in the axial oscillator groove and the spring (4) that is arranged in the spring groove constitutes right Drive Structure; Described left Drive Structure and right Drive Structure all are at least one.
- 3. the axial many oscillators ultrasonic linear motor in footpath according to claim 2 is characterized in that described left Drive Structure is 4, and is divided into two groups, and two left Drive Structure of every group are symmetrical arranged along centre bore.
- 4. the axial many oscillators ultrasonic linear motor in footpath according to claim 2 is characterized in that described right Drive Structure is 4, and is divided into two groups, and two right Drive Structure of every group are symmetrical arranged along centre bore.
- 5. according to the axial many oscillators ultrasonic linear motor in each described footpath in the claim 1～6, it is characterized in that, described radially oscillator groove is away from the outer recessed formation draw-in groove of an end of centre bore, and radially oscillator constitutes fixture block away from an end evagination of centre bore, and described fixture block is arranged in the draw-in groove.
- 6. the axial many oscillators ultrasonic linear motor in footpath according to claim 5 is characterized in that, also is provided with spring (4) between an end end face of the close centre bore of described fixture block and the draw-in groove.
- 7. according to the axial many oscillators ultrasonic linear motor in each described footpath in the claim 1～6, it is characterized in that described radially oscillator (2) all links to each other with external power source by power line (7) with axial oscillator (3).
- 8. according to the axial many oscillators ultrasonic linear motor in each described footpath in the claim 1～6, it is characterized in that described stator case is mainly by stator case A(8) and stator case B(9) snap together formation.
- 9. according to the axial many oscillators ultrasonic linear motor in each described footpath in the claim 1～6, it is characterized in that, be inlaid with several balls (10) on the inwall of described centre bore, the cylindrical of described electric mover (1) is provided with the chute that is complementary with ball (10) position vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200789194U CN201947197U (en) | 2011-03-23 | 2011-03-23 | Radial and axial multi-vibrator ultrasonic linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200789194U CN201947197U (en) | 2011-03-23 | 2011-03-23 | Radial and axial multi-vibrator ultrasonic linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201947197U true CN201947197U (en) | 2011-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200789194U Expired - Fee Related CN201947197U (en) | 2011-03-23 | 2011-03-23 | Radial and axial multi-vibrator ultrasonic linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201947197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158120A (en) * | 2011-03-23 | 2011-08-17 | 刘勤 | Radial and axial multi-vibrator ultrasonic linear motor and operating method thereof |
-
2011
- 2011-03-23 CN CN2011200789194U patent/CN201947197U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158120A (en) * | 2011-03-23 | 2011-08-17 | 刘勤 | Radial and axial multi-vibrator ultrasonic linear motor and operating method thereof |
| CN102158120B (en) * | 2011-03-23 | 2013-12-25 | 刘勤 | Radial and axial multi-vibrator ultrasonic linear motor and operating method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20140323 |