CN107040165A - The unidirectional direct driving motor of the big torsional moment of Multi-stacking compaction electroceramics - Google Patents

The unidirectional direct driving motor of the big torsional moment of Multi-stacking compaction electroceramics Download PDF

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Publication number
CN107040165A
CN107040165A CN201610270995.2A CN201610270995A CN107040165A CN 107040165 A CN107040165 A CN 107040165A CN 201610270995 A CN201610270995 A CN 201610270995A CN 107040165 A CN107040165 A CN 107040165A
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China
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gear wheel
big
piezoelectric ceramic
motor
unilateral bearing
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CN201610270995.2A
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Chinese (zh)
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CN107040165B (en
Inventor
何锋
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Guangzhou Huang Jing Automatic Equipment Co Ltd
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Guangzhou Huang Jing Automatic Equipment Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/10Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
    • H02N2/101Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors using intermittent driving, e.g. step motors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/10Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
    • H02N2/12Constructional details
    • H02N2/123Mechanical transmission means, e.g. for gearing

Abstract

The present invention relates to the unidirectional direct driving motor industry technology field of big torsional moment, the more particularly to unidirectional direct driving motor of the big torsional moment of Multi-stacking compaction electroceramics, including fixed plate, gear wheel component includes gear wheel, roller axle, small unilateral bearing, fixing axle and spacing shim;Push-rod assembly includes push rod, big unilateral bearing, bearing inner race end cap and bearing outer ring end cap, and big unilateral bearing outer ring is connected with push rod;Big unilateral bearing inner ring is connected with roller axle;Bearing outer ring end cap is screwed on the front end face of push rod one end;Bearing inner race end cap is screwed on the front end face of the roller axle other end;The top of piezoelectric ceramic motor component is connected by vibration head with the push rod other end;The teeth of gear wheel and conveyer belt phase bridle joint.The present invention has the beneficial effect that:Realize the high-speed drive of the adjustable controllable micro-stepping of speed;Realize the direct drive of big torsion at a high speed;The present invention has simple in construction, and it is reasonable to set, the advantages of low manufacture cost.

Description

The unidirectional direct driving motor of the big torsional moment of Multi-stacking compaction electroceramics
Technical field
The present invention relates to the unidirectional direct driving motor industry technology field of big torsional moment, the more particularly to unidirectional direct driving motor of the big torsional moment of Multi-stacking compaction electroceramics.
Background technology
At present, existing servo or stepper motor can only generally provide the driving of large torque low speed or the driving of the small moment of torsion of high speed.In the case of certain power, motor is to drive larger load, have to be slowed down by reducing gear, and the structure of the reducing gear of general motor is relative complex, transmission efficiency is relatively low, the occasion of high pulling torque and high-speed drive is needed for transmission terminal, such motor can not meet requirement.And generally, the corner step pitch of existing stepper motor is fixed, and the precision of transmission feeding is non-adjustable, has lacked flexibility.
The content of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of unidirectional direct driving motor of the big torsional moment of Multi-stacking compaction electroceramics simple in construction, reasonable in design, easy to use.
To achieve the above object, the technical solution adopted by the present invention is:
The unidirectional direct driving motor of the big torsional moment of Multi-stacking compaction electroceramics of the present invention, including fixed plate, conveyer belt, push-rod assembly and gear wheel component, the gear wheel component includes gear wheel, roller axle, small unilateral bearing, fixing axle and spacing shim, the fixing axle and spacing shim are screwed on the surface of fixed plate, and spacing shim is arranged between fixing axle one end and the surface of fixed plate;The axle body of the fixing axle is nested on the inner ring of small unilateral bearing;The outer ring fastening of the small unilateral bearing is nested on the endoporus of roller axle;The boss rear end face of described roller axle one end is mutually fixedly connected by screw with gear wheel, and the gear wheel is arranged between the surface of fixed plate and boss rear end face;
The keyway that the push-rod assembly includes on push rod, big unilateral bearing, bearing inner race end cap and bearing outer ring end cap, big unilateral bearing outer ring is connected by the first flat key with the keyway on push rod inner hole wall;
Keyway on big unilateral bearing inner ring is connected by the second flat key with the keyway of roller axle outer wall;The bearing outer ring end cap is screwed on the front end face of push rod one end;The bearing inner race end cap is screwed on the front end face of the roller axle other end;
Piezoelectric ceramic motor component, draught control component and sensor cluster are provided with the surface of the fixed plate, sensor cluster is located at the underface of push rod one end, and described sensor cluster one end is intersected with the outer periphery of gear wheel;The top of the piezoelectric ceramic motor component is mutually fixedly connected by vibration head with the push rod other end;The teeth of the gear wheel and conveyer belt phase bridle joint, described draught control component one end is tight against the end face that press against gear wheel.
Further, it also includes cushion block, the piezoelectric ceramic motor component includes motor mounting rack, piezoelectric ceramic motor, upper holds out against screw head, lower holds out against screw head and locking nut, described motor mounting rack one end is arranged on the surface of fixed plate by cushion block, upper holds out against screw head and lower holds out against screw head are mutually threadedly coupled with the screw up and down of motor mounting rack inside casing respectively, and the piezoelectric ceramic motor is made up of multilayer piezoelectric ceramic superposition;
The two ends of the piezoelectric ceramic motor are locked in the inside casing of motor mounting rack by upper holds out against screw head, lower holds out against screw head and locking nut respectively, and the top of the piezoelectric ceramic motor is connected with vibration head.
Further, the draught control component includes torsion spring rotary shaft, mounting seat, torsion spring and friction plate, the mounting seat and torsion spring rotary shaft are each attached on the surface of fixed plate, the turn section of the torsion spring is set in torsion spring rotary shaft, the one end is turned round bar and is fixedly installed in mounting seat, the torsion spring other end is turned round bar and is mutually fixedly connected with friction plate one end, and the friction plate other end is tight against the end face that press against gear wheel.
Further, the sensor cluster includes sensor and location-plate, and described location-plate one end is fixed on the surface of fixed plate, the fixed sensor of the location-plate other end.
After said structure, the present invention has the beneficial effect that:
1st, the present apparatus make use of the Oscillation Amplitude of piezoelectric ceramic motor small, the characteristics of vibration frequency and adjustable amplitude continuity, realize the high-speed drive of the adjustable controllable micro-stepping of speed.
2nd, the piezoelectric ceramic motor of multi-laminate of the invention has larger torsional moment, realizes the direct drive of big torsion at a high speed.
3rd, the present invention has simple in construction, and it is reasonable to set, the advantages of low manufacture cost.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the partial sectional view of the present invention;
Fig. 3 is A positions enlarged drawing in Fig. 2;
Fig. 4 is the first view stereo figure of the present invention;
Fig. 5 is the first view stereo perspective view of the present invention;
Description of reference numerals:
1st, fixed plate;2nd, piezoelectric ceramic motor component;2-1, motor mounting rack;
2-2, piezoelectric ceramic motor;2-3, upper holds out against screw head;2-4, lower holds out against screw head;
2-5, locking nut;
31st, torsion spring rotary shaft;32nd, mounting seat;33rd, torsion spring;34th, friction plate;4th, cushion block;
5th, vibration head;
61st, push rod;62nd, big unilateral bearing;63rd, bearing inner race end cap;64th, bearing outer ring end cap;
71st, gear wheel;72nd, roller axle;73rd, small unilateral bearing;74th, fixing axle;
8th, conveyer belt;9th, sensor cluster;101st, the first flat key;102nd, the second flat key;
111st, spacing shim;
A, conveyer belt feeding step pitch;B, piezoelectric ceramic motor Oscillation Amplitude;
D, gear wheel nominal diameter;L, the acting force arm of vibration.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in Figures 1 to 5, the unidirectional direct driving motor of the big torsional moment of Multi-stacking compaction electroceramics of the present invention, including fixed plate 1, conveyer belt 8, push-rod assembly and gear wheel component, the gear wheel component includes gear wheel 71, roller axle 72, small unilateral bearing 73, fixing axle 74 and spacing shim 111, the fixing axle 74 and spacing shim 111 are screwed on the surface of fixed plate 1, and spacing shim 111 is arranged between the surface of the one end of fixing axle 74 and fixed plate 1;The axle body of the fixing axle 74 is nested on the inner ring of small unilateral bearing 73;The outer ring fastening of the small unilateral bearing 73 is nested on the endoporus of roller axle 72;The boss rear end face of described one end of roller axle 72 is mutually fixedly connected by screw with gear wheel 71, and the gear wheel 71 is arranged between the surface of fixed plate 1 and boss rear end face.
The push-rod assembly includes push rod 61, big unilateral bearing 62, bearing inner race end cap 63 and bearing outer ring end cap 64, keyway on the big outer ring of unilateral bearing 62 is connected by the first flat key 101 with the keyway on the inner hole wall of push rod 61, and the first flat key 101 is elastic conjunction mode with keyway.
Keyway on the big inner ring of unilateral bearing 62 is connected by the second flat key 102 with the keyway of the outer wall of roller axle 72;Second flat key 102 is elastic conjunction mode with keyway.
The bearing outer ring end cap 64 is screwed on the front end face of the one end of push rod 61;The bearing inner race end cap 63 is screwed on the front end face of the other end of roller axle 72.
Piezoelectric ceramic motor component 2, draught control component and sensor cluster 9 are provided with the surface of the fixed plate 1, sensor cluster 9 is located at the underface of the one end of push rod 61, and described one end of sensor cluster 9 is intersected with the outer periphery of gear wheel 71;The top of the piezoelectric ceramic motor component 2 is mutually fixedly connected by vibration head 5 with the other end of push rod 61;The teeth of the gear wheel 71 and the phase bridle joint of conveyer belt 8, described draught control component one end is tight against the end face that press against gear wheel 71.
Further, it also includes cushion block 4, the piezoelectric ceramic motor component 2 includes motor mounting rack 2-1, piezoelectric ceramic motor 2-2, upper holds out against screw head 2-3, lower holds out against screw head 2-4 and locking nut 2-5, described motor mounting rack 2-1 one end is arranged on by cushion block 4 on the surface of fixed plate 1, the screw up and down of upper holds out against screw head 2-3 and lower holds out against screw head 2-4 respectively with motor mounting rack 2-1 inside casings is mutually threadedly coupled, and the piezoelectric ceramic motor 2-2 is made up of multilayer piezoelectric ceramic superposition;
The two ends of the piezoelectric ceramic motor 2-2 are locked in motor mounting rack 2-1 inside casing by upper holds out against screw head 2-3, lower holds out against screw head 2-4 and locking nut 2-5 respectively, and the top of the piezoelectric ceramic motor 2-2 is connected with vibration head 5.
Further, the draught control component includes torsion spring rotary shaft 31, mounting seat 32, torsion spring 33 and friction plate 34, the mounting seat 32 and torsion spring rotary shaft 31 are each attached on the surface of fixed plate 1, the turn section of the torsion spring 33 is set in torsion spring rotary shaft 31, turn round bar and be fixedly installed in mounting seat 32 in described one end of torsion spring 33, the other end of torsion spring 33 is turned round bar and is mutually fixedly connected with the one end of friction plate 34, and the other end of friction plate 34 is tight against the end face that press against gear wheel 71.
Further, the sensor cluster 9 includes sensor and location-plate, and described location-plate one end is fixed on the surface of fixed plate 1, the fixed sensor of the location-plate other end.
The transmission process and operation principle of the present invention:
After piezoelectric ceramic motor 2-2 is powered, piezoelectric ceramic motor 2-2 top produces up-down vibration, and its amplitude vibrated is 0~0.04mm, Vibration frequency is 0~20kHz;Because motor mounting rack 2-1 structure is framework shape, therefore motor mounting rack 2-1 can be allowed to realize micro stretching and recovery.
When piezoelectric ceramic motor 2-2 lower ends are fixed, the vibration head 5 that piezoelectric ceramic motor 2-2 is withstood upper end, i.e. vibration head 5 produce up-down vibration simultaneously.This, which vibrates, causes the push-rod assembly being fastenedly connected with vibration head 5 to be swung up and down around roller axle 72, simultaneously because the outer ring of the big unilateral bearing 62 of push-rod assembly is to realize radially to be fastenedly connected positioning by the first flat key 101 with push rod 61, therefore the outer ring of big unilateral bearing 62 can forward or backward rotate around roller axle 72.
When vibration head 5 is moved upwards, the outer ring of big unilateral bearing 62 can rotate forward, due to the big unilateral bearing 62 outer ring toward be when counterclockwise moving it is locked with the inner ring of big unilateral bearing 62,(The characteristics of unilateral bearing is that bearing outer ring can be rotated freely in one direction relative to bearing inner race, and locked a kind of bearing in the other directions)Therefore, the inner ring of big unilateral bearing 62 now can forward be rotated due to locked by outer ring, the roller axle 72 being now fastenedly connected with the inner ring of big unilateral bearing 62 by second flat key can also rotate forward, the gear wheel 71 being fastened on simultaneously on roller axle 72 can also rotate forward, so that gear wheel 71 drives conveyer belt 8 to feed forward.
When vibration head 5 is moved downward, the outer ring meeting back rotation of big unilateral bearing 62, being when being moved in the clockwise direction due to the outer ring of the big unilateral bearing 62 can be with the inner ring of big unilateral bearing 62 freely with respect to rolling, therefore, the inner ring of big unilateral bearing 62 will not the clockwise rotation by the motive force of outer ring, the roller axle 72 being fastenedly connected with big unilateral bearing 62 is also not forced toward being rotated clockwise;Simultaneously, because the outer ring of the small unilateral bearing 73 is tightly locked in the clockwise direction relative to inner ring, but the inner ring of small unilateral bearing 73 is integrally fixed in fixed plate 1, therefore the outer ring of small unilateral bearing 73 can not be toward rotationally clockwise, then the roller axle 72 being fastened on the small inner ring of unilateral bearing 73 can not be toward rotationally clockwise, therefore ensure that the gear wheel 71 being fastened on roller axle 72 also can be stopped still in the original location without back rotation, the conveyer belt 8 being engaged on gear wheel 71 also stays at original position.
As shown in figure 1, the once vibration that piezoelectric ceramic motor 2-2 is provided will promote conveyer belt to feed a step pitch forward, the segment distance can be obtained by following calculate:The acting force arm L of the Oscillation Amplitude b of feeding step pitch a=piezoelectric ceramic motor of conveyer belt × gear wheel nominal diameter D ÷ vibrations.
If gear wheel nominal diameter D and the acting force arm L of vibration ratio are 1:1, if now piezoelectric ceramic motor 2-2 Oscillation Amplitude is 0.01mm, if it is 1 to control carry-over factor f, then the feeding step pitch of conveyer belt 8 is 0.01mm, simultaneously as piezoelectric ceramic motor 2-2 Oscillation Amplitude can continuity regulation, therefore the feeding step pitch of conveyer belt 8 also simultaneously can continuity regulation, therefore, piezoelectric ceramic motor 2-2 micro- amplitude driving realizes the adjustable feed function of micro-stepping and continuity of conveyer belt 8.Pass through piezoelectric ceramic motor 2-2 vibration frequency control again, you can realize the control of the feed speed of conveyer belt 8.This piezoelectric ceramic motor 2-2 has feedback servo control system simultaneously, when gear wheel 71 is rotated, sensor can make detection in real time to the position of gear wheel 71 and provide feedback signal to piezoelectric ceramic motor 2-2, and piezoelectric ceramic motor 2-2 carries out SERVO CONTROL and regulation to ensure the terminal location precision of transmission by feedback signal.In addition, the exportable active forces of piezoelectric ceramic motor 2-2 are larger(It is 720kg to the maximum), the active force is driven terminal, no reducing gear by push-rod assembly direct drive, therefore can promote larger load.This patent design is designed with draught control component simultaneously, by changing the torsion spring 33 of different spring ratios and changing the friction plate 34 of different coefficients of friction, so as to the size of the resistance of regulation, therefore can realize the different motive force outputs to gear wheel 71.
The present invention has the beneficial effect that:
1st, the present apparatus make use of the Oscillation Amplitude of piezoelectric ceramic motor small, the characteristics of vibration frequency and adjustable amplitude continuity, realize the high-speed drive of the adjustable controllable micro-stepping of speed.
2nd, the piezoelectric ceramic motor of multi-laminate of the invention has larger torsional moment, realizes the direct drive of big torsion at a high speed.
3rd, in addition, this is simple in construction, reasonable in design, manufacturing cost is low.
Described above is only the better embodiment of the present invention, therefore the equivalent change or modification that all construction, feature and principles according to described in present patent application scope are done, and is included in the range of present patent application.

Claims (4)

1. the unidirectional direct driving motor of the big torsional moment of Multi-stacking compaction electroceramics, it is characterised in that:Including fixed plate(1), conveyer belt(8), push-rod assembly and gear wheel component, the gear wheel component includes gear wheel(71), roller axle(72), small unilateral bearing(73), fixing axle(74)And spacing shim(111), the fixing axle(74)And spacing shim(111)It is screwed in fixed plate(1)Surface on, spacing shim(111)It is arranged on fixing axle(74)One end and fixed plate(1)Surface between;The fixing axle(74)Axle body be nested in small unilateral bearing(73)Inner ring on;The small unilateral bearing(73)Outer ring fastening be nested in roller axle(72)Endoporus on;The roller axle(72)The boss rear end face of one end passes through screw and gear wheel(71)Mutually it is fixedly connected, the gear wheel(71)It is arranged on fixed plate(1)Surface and boss rear end face between;
The push-rod assembly includes push rod(61), big unilateral bearing(62), bearing inner race end cap(63)With bearing outer ring end cap(64), big unilateral bearing(62)Keyway on outer ring passes through the first flat key(101)With push rod(61)Keyway on inner hole wall is connected;
Big unilateral bearing(62)Keyway on inner ring passes through the second flat key(102)With roller axle(72)The keyway of outer wall is connected;The bearing outer ring end cap(64)It is screwed in push rod(61)On the front end face of one end;The bearing inner race end cap(63)It is screwed in roller axle(72)On the front end face of the other end;
The fixed plate(1)Surface on be provided with piezoelectric ceramic motor component(2), draught control component and sensor cluster(9), sensor cluster(9)Positioned at push rod(61)The underface of one end, the sensor cluster(9)One end and gear wheel(71)Outer periphery intersect;The piezoelectric ceramic motor component(2)Top pass through vibration head(5)With push rod(61)The other end is mutually fixedly connected;The gear wheel(71)Teeth and conveyer belt(8)Phase bridle joint, described draught control component one end is tight against press against gear wheel(71)End face.
2. the unidirectional direct driving motor of the big torsional moment of Multi-stacking compaction electroceramics according to claim 1, it is characterised in that:It also includes cushion block(4), the piezoelectric ceramic motor component(2)Include motor mounting rack(2-1), piezoelectric ceramic motor(2-2), upper holds out against screw head(2-3), lower holds out against screw head(2-4)And locking nut(2-5), the motor mounting rack(2-1)One end passes through cushion block(4)It is arranged on fixed plate(1)Surface on, upper holds out against screw head(2-3)With lower holds out against screw head(2-4)Respectively with motor mounting rack(2-1)The screw up and down of inside casing is mutually threadedly coupled, the piezoelectric ceramic motor(2-2)It is made up of multilayer piezoelectric ceramic superposition;
The piezoelectric ceramic motor(2-2)Two ends pass through upper holds out against screw head respectively(2-3), lower holds out against screw head(2-4)And locking nut(2-5)It is locked at motor mounting rack(2-1)Inside casing in, the piezoelectric ceramic motor(2-2)Top and vibration head(5)It is connected.
3. the unidirectional direct driving motor of the big torsional moment of Multi-stacking compaction electroceramics according to claim 1, it is characterised in that:The draught control component includes torsion spring rotary shaft(31), mounting seat(32), torsion spring(33)And friction plate(34), the mounting seat(32)With torsion spring rotary shaft(31)It is each attached to fixed plate(1)Surface on, the torsion spring(33)Turn section be set in torsion spring rotary shaft(31)On, the torsion spring(33)Turn round bar and be fixedly installed on mounting seat in one end(32)On, the torsion spring(33)The other end turns round bar and friction plate(34)One end is mutually fixedly connected, friction plate(34)The other end is tight against press against gear wheel(71)End face.
4. the unidirectional direct driving motor of the big torsional moment of Multi-stacking compaction electroceramics according to claim 1, it is characterised in that:The sensor cluster(9)Include sensor and location-plate, described location-plate one end is fixed on fixed plate(1)Surface on, the fixed sensor of the location-plate other end.
CN201610270995.2A 2016-04-27 2016-04-27 The unidirectional direct driving motor of the big torsional moment of Multi-stacking compaction electroceramics Active CN107040165B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040017131A1 (en) * 2002-03-01 2004-01-29 Akihiro Sawada Piezoelectric actuator, and timepiece and portable equipment having the same
CN1639955A (en) * 2002-03-11 2005-07-13 精爱普生株式会社 Rotation/movement converting actuator
CN101111189A (en) * 2005-02-01 2008-01-23 霍夫曼-拉罗奇有限公司 Drive unit for medical devices
CN104578897A (en) * 2014-09-30 2015-04-29 南京航空航天大学 Piezoelectric linear motor and working method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040017131A1 (en) * 2002-03-01 2004-01-29 Akihiro Sawada Piezoelectric actuator, and timepiece and portable equipment having the same
CN1639955A (en) * 2002-03-11 2005-07-13 精爱普生株式会社 Rotation/movement converting actuator
CN101111189A (en) * 2005-02-01 2008-01-23 霍夫曼-拉罗奇有限公司 Drive unit for medical devices
CN104578897A (en) * 2014-09-30 2015-04-29 南京航空航天大学 Piezoelectric linear motor and working method thereof

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Denomination of invention: Multi-lamination piezoelectric ceramic large torsion moment unidirectional direct drive motor

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Denomination of invention: Multilayer laminated piezoelectric ceramic high torque unidirectional direct drive motor

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