CN102064730B - Dual-piezoelectric stack actuator for outputting positive and negative torques - Google Patents
Dual-piezoelectric stack actuator for outputting positive and negative torques Download PDFInfo
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- CN102064730B CN102064730B CN201110006224XA CN201110006224A CN102064730B CN 102064730 B CN102064730 B CN 102064730B CN 201110006224X A CN201110006224X A CN 201110006224XA CN 201110006224 A CN201110006224 A CN 201110006224A CN 102064730 B CN102064730 B CN 102064730B
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Abstract
The invention relates to a dual-piezoelectric stack actuator for outputting positive and negative torques, which comprises a vertically actuating shaft, wherein the upper end of the vertically actuating shaft is provided with an upper end fixing joint, the outer side of the vertically actuating shaft is annularly sleeved with an actuating shaft external sleeve the lower end of which is provided with a lower end fixing joint, the actuating shaft external sleeve is fixedly connected with a transverse sleeve internally provided with a left piezoelectric stack and a right piezoelectric stack which are symmetrical through a connecting rod group, and the left piezoelectric stack and the right piezoelectric stack are respectively connected with the left side surface and the right side surface of a cuboid actuating rod on the vertically actuating shaft through respectively force transmitting parts and can output positive and negative torques. The invention has the advantages of compact structure and simpleness of assembly; and the use range of the dual-piezoelectric stack actuator is enlarged.
Description
Technical field
The present invention relates to a kind of piezoelectric actuator, be specifically related to a kind of double piezoelectric pile actuator of exporting positive negative torque.
Background technology
Because the actuator volume that utilizes piezoelectric to make is little, compact conformation, precision are high, therefore, piezoelectric pile actuator has obtained using widely at machine-building, space flight and aviation and some other industrial circle.Mostly present employed piezoelectric pile actuator is the actuator of thrust output or pulling force.Needing the occasion of output torque,, using pulling force and thrust actuator to have certain limitation merely, limiting the use of piezoelectric pile actuator as being vibration control of waving etc. to the vibration shape.
Summary of the invention
In order to overcome the deficiency that above-mentioned prior art exists; The object of the present invention is to provide a kind of double piezoelectric pile actuator of exporting positive negative torque; The vertical action shaft that has the upper end permanent joint through the upper end; This vertical action shaft outer ring has the action shaft outer sleeve of lower end permanent joint around being with the lower end; And the action shaft outer sleeve has the left piezoelectric pile of symmetry and the transverse sleeves of right piezoelectric pile is fixedly connected through the connecting rod group with inner, add left piezoelectric pile and the right piezoelectric pile force transferring part through separately respectively with vertical action shaft on the left surface of cuboid operating bar be connected with right flank, can export positive negative torque; And compact conformation, assembling are simply, enlarged the scope of application of piezoelectric pile actuator.
In order to achieve the above object, the technical scheme that the present invention adopted is:
A kind of double piezoelectric pile actuator of exporting positive negative torque; Comprise that the upper end has the vertical action shaft 8 of upper end permanent joint; These vertical action shaft 8 outer rings have the action shaft outer sleeve 7 of lower end permanent joint around being with the lower end; And vertically the lower end of action shaft 8 is in action shaft outer sleeve 7; And action shaft outer sleeve 7 is fixedly connected through connecting rod group and transverse sleeves 24; The outer surface of described vertical action shaft 8 has adaptive upper bearing 5, vertical cuboid operating bar 10 and adaptive lower bearing 11 from top to bottom successively; Described upper bearing 5 is clamped in upper axis cushion cap 6 and is formed between the lower, transverse convexity on the upper end cover 3; Described lower bearing 11 is clamped between the upper lateral convexity of lower shaft cushion cap 16 and bottom end cover 12; And described vertical cuboid operating bar 10 pass successively action shaft outer sleeve 7 outer surfaces first through hole 9 and transverse sleeves 24 outer surfaces second through hole 25 and get into transverse sleeves 24 inside; Transverse sleeves 24 inner left sides and right-hand part are provided with the symmetrical left piezoelectric pile 40 of longitudinal center's axis and right piezoelectric pile 28 of cuboid operating bar 10 longitudinally respectively, and left piezoelectric pile 40 and right piezoelectric pile 28 are connected with right flank with the left surface of cuboid operating bar 10 respectively through force transferring part separately, and the connector lug 110 of the lead 103 of left piezoelectric pile 40 and right piezoelectric pile 28 and four spring hole scokets 36 that are arranged on transverse sleeves 24 outer surfaces is connected.
The upper end permanent joint of described vertical action shaft 8 be connected vertical action shaft 8 the upper surface last rectangular block 2 and be connected and the screwed cylindrical bar 1 of vertically going up with the upper surface that should go up rectangular block 2.
The upper surface of described action shaft outer sleeve 7 and lower surface have upper end cover of fixing with screwing 43 and the bottom end cover of fixing with following screw 15 12 respectively, and the inwall of the bottom lateral surface of this upper end cover 3 and the upper outside face of bottom end cover 12 and action shaft outer sleeve 7 fits.
The lower end permanent joint of described action shaft outer sleeve 7 be connected bottom end cover 12 lower port following rectangular block 13 and be connected with the lower surface of this time rectangular block 13 and screwed vertical cylindrical bar 14 down.
Described connecting rod group is made up of two connecting rods, and two ends of each connecting rod 17 have outer shaft sleeve tube arc column-like head 18 that is fitted in action shaft outer sleeve 7 outer surfaces and the transverse sleeves arc column-like head 20 that is fitted in transverse sleeves 24 outer surfaces respectively.
The force transferring part of described left piezoelectric pile 40 is that the right side has first substrate 39 that first round end protruding 38 and left side have first groove 101; This first round end protruding 38 is connected with the left surface of cuboid operating bar 10, and first groove 101 snaps in an end of left piezoelectric pile 40; The force transferring part of described right piezoelectric pile 28 is that the left side has second substrate 27 that second round end protruding 26 and right side have second groove 102; This second round end protruding 26 is connected with the right flank of cuboid operating bar 10, and second groove 102 snaps in an end of right piezoelectric pile 28.
The vertical action shaft 8 that has the upper end permanent joint through the upper end; These vertical action shaft 8 outer rings have the action shaft outer sleeve 7 of lower end permanent joint around being with the lower end; And action shaft outer sleeve 7 is fixedly connected through connecting rod group and the inner transverse sleeves 24 that has symmetrical left piezoelectric pile 40 and right piezoelectric pile 28; Add left piezoelectric pile 40 and right piezoelectric pile 28 force transferring part through separately respectively with vertical action shaft 8 on the left surface of cuboid operating bar 10 be connected with right flank; Can the positive negative torque of output, and compact conformation, assembling are simple, have enlarged the scope of application of piezoelectric pile actuator.
Description of drawings
Fig. 1 is a whole assembling sketch map of the present invention.
Fig. 2 is the internal structure sketch map of action shaft outer sleeve of the present invention.
Fig. 3 is the internal structure sketch map of transverse sleeves of the present invention.
Fig. 4 be the lead of left piezoelectric pile of the present invention and right piezoelectric pile and four spring hole scokets that are arranged on the transverse sleeves outer surface connector lug be connected sketch map.
Embodiment
Below in conjunction with accompanying drawing the present invention is done more detailed explanation.
As shown in Figure 1; Export the double piezoelectric pile actuator of positive negative torque; Comprise that the upper end has the vertical action shaft 8 of upper end permanent joint; These vertical action shaft 8 outer rings have the action shaft outer sleeve 7 of lower end permanent joint around being with the lower end; And vertically the lower end of action shaft 8 is in action shaft outer sleeve 7; And action shaft outer sleeve 7 is fixedly connected through connecting rod group and transverse sleeves 24, and is as shown in Figure 2, and the outer surface of described vertical action shaft 8 has adaptive upper bearing 5, vertical cuboid operating bar 10 and adaptive lower bearing 11 from top to bottom successively; Described upper bearing 5 is clamped in upper axis cushion cap 6 and is formed between the lower, transverse convexity on the upper end cover 3; Described lower bearing 11 is clamped between the upper lateral convexity of lower shaft cushion cap 16 and bottom end cover 12, as shown in Figures 2 and 3, and described vertical cuboid operating bar 10 pass successively action shaft outer sleeve 7 outer surfaces first through hole 9 and transverse sleeves 24 outer surfaces second through hole 25 and get into transverse sleeves 24 inside; Transverse sleeves 24 inner left sides and right-hand part are provided with the longitudinally symmetrical left piezoelectric pile 40 of longitudinal center's axis and right piezoelectric pile 28 of cuboid operating bar 10 respectively; A left side piezoelectric pile 40 and right piezoelectric pile 28 are connected with right flank with the left surface of cuboid operating bar 10 respectively through force transferring part separately, and be as shown in Figure 4, and the connector lug 110 of the lead 103 of left piezoelectric pile 40 and right piezoelectric pile 28 and four spring hole scokets 36 that are arranged on transverse sleeves 24 outer surfaces is connected.And for example shown in Figure 2, the upper end permanent joint of described vertical action shaft 8 be connected vertical action shaft 8 the upper surface last rectangular block 2 and be connected and the screwed cylindrical bar 1 of vertically going up with the upper surface that should go up rectangular block 2.The upper surface of described action shaft outer sleeve 7 and lower surface have upper end cover of fixing with screwing 43 and the bottom end cover of fixing with following screw 15 12 respectively; The inwall of the bottom lateral surface of this upper end cover 3 and the upper outside face of bottom end cover 12 and action shaft outer sleeve 7 fits, and the lower end permanent joint of described action shaft outer sleeve 7 be connected bottom end cover 12 lower port following rectangular block 13 and be connected with the lower surface of this time rectangular block 13 and screwed vertical cylindrical bar 14 down.Described connecting rod group is made up of two connecting rods, and two ends of each connecting rod 17 have outer shaft sleeve tube arc column-like head 18 that is fitted in action shaft outer sleeve 7 outer surfaces and the transverse sleeves arc column-like head 20 that is fitted in transverse sleeves 24 outer surfaces respectively.And for example shown in Figure 3; The force transferring part of described left piezoelectric pile 40 is that the right side has first substrate 39 that first round end protruding 38 and left side have first groove 101; This first round end protruding 38 is connected with the left surface of cuboid operating bar 10, and first groove 101 snaps in an end of left piezoelectric pile 40; The force transferring part of described right piezoelectric pile 28 is that the left side has second substrate 27 that second round end protruding 26 and right side have second groove 102; This second round end protruding 26 is connected with the right flank of cuboid operating bar 10, and second groove 102 snaps in an end of right piezoelectric pile 28.
Operation principle of the present invention is: at first the upper end permanent joint of vertical action shaft 8 and the lower end permanent joint of action shaft outer sleeve 7 are fixedly connected respectively with the corresponding jig that will produce moment of torsion; Then the control signal of correspondence is imported through four spring hole scokets 36; Lead 103 by correspondence sends to left piezoelectric pile 40 and right piezoelectric pile 28; Left piezoelectric pile 40 is shunk and 28 elongations of right piezoelectric pile if control signal is controlled; Then on operating bar 10, produce active force left with right piezoelectric pile 28 force transferring part separately through left piezoelectric pile 40; Operating bar 10 is converted into the negative torque on the operating bar 8 with this active force left immediately, the jig output that is connected from the two ends of vertical action shaft 8; If control signal is controlled left piezoelectric pile 40 elongations and 28 elongations of right piezoelectric pile; Then on operating bar 10, produce active force to the right with right piezoelectric pile 28 force transferring part separately through left piezoelectric pile 40; Operating bar 10 is converted into the positive moment of torsion on the operating bar 8 with this active force to the right immediately, the jig output that is connected from the two ends of vertical action shaft 8.
The vertical action shaft 8 that has upper end permanent joint and lower end permanent joint through top and bottom respectively; These vertical action shaft 8 outer rings are around being with action shaft outer sleeve 7; And action shaft outer sleeve 7 is fixedly connected through connecting rod group and the inner transverse sleeves 24 that has symmetrical left piezoelectric pile 40 and right piezoelectric pile 28; Add left piezoelectric pile 40 and right piezoelectric pile 28 force transferring part through separately respectively with vertical action shaft 8 on the left surface of cuboid operating bar 10 be connected with right flank; Can the positive negative torque of output, and compact conformation, assembling are simple, have enlarged the scope of application of piezoelectric pile actuator.
Claims (6)
- One kind output positive negative torque double piezoelectric pile actuator; Comprise that the upper end has the vertical action shaft (8) of upper end permanent joint; It is characterized in that: this vertical action shaft (8) outer ring has the action shaft outer sleeve (7) of lower end permanent joint around being with the lower end; And vertically the lower end of action shaft (8) is in action shaft outer sleeve (7); And action shaft outer sleeve (7) is fixedly connected through connecting rod group and transverse sleeves (24); The outer surface of described vertical action shaft (8) is gone up and following adaptive upper bearing (5), vertical cuboid operating bar (10) and the adaptive lower bearing (11) of having successively in vain; The upper surface of said action shaft outer sleeve (7) and lower surface have upper end cover of fixing with screwing (4) (3) and the bottom end cover of fixing with following screw (15) respectively; Described upper bearing (5) is clamped in the upper axis cushion cap (6) in the action shaft outer sleeve (7) and is formed between the lower, transverse convexity on the upper end cover (3); Described lower bearing (11) is clamped between the upper lateral convexity of interior lower shaft cushion cap (16) of action shaft outer sleeve (7) and bottom end cover (12); And described vertical cuboid operating bar (10) pass successively action shaft outer sleeve (7) outer surface first through hole (9) and transverse sleeves (24) outer surface second through hole (25) and get into transverse sleeves (24) inside; Inner left side of transverse sleeves (24) and right-hand part are provided with the longitudinally symmetrical left piezoelectric pile of longitudinal center's axis (40) and the right piezoelectric pile (28) of cuboid operating bar (10) respectively; Left side piezoelectric pile (40) is connected with right flank with the left surface of cuboid operating bar (10) respectively with the force transferring part of right piezoelectric pile (28) through separately, and the connector lug (110) of the lead (103) of left piezoelectric pile (40) and right piezoelectric pile (28) and four spring hole scokets (36) that are arranged on transverse sleeves (24) outer surface is connected.
- 2. the double piezoelectric pile actuator of the positive negative torque of output according to claim 1 is characterized in that: the upper end permanent joint of described vertical action shaft (8) is connected and screwed vertical upward cylindrical bar (1) for the last rectangular block (2) of the upper surface that is connected vertical action shaft (8) and with the upper surface that should go up rectangular block (2).
- 3. according to the double piezoelectric pile actuator of claim 1 or the positive negative torque of the described output of claim 2; It is characterized in that: described connecting rod group is made up of two connecting rods, and two ends of each connecting rod (17) have the outer shaft sleeve tube arc column-like head (18) that is fitted in action shaft outer sleeve (7) outer surface respectively and are fitted in the transverse sleeves arc column-like head (20) of transverse sleeves (24) outer surface.
- 4. according to the double piezoelectric pile actuator of claim 1 or the positive negative torque of the described output of claim 2; It is characterized in that: the force transferring part of described left piezoelectric pile (40) is that the right side has first substrate (39) that first round end protruding (38) and left side have first groove (101); The left surface of this first round end protruding (38) and cuboid operating bar (10) is connected, and first groove (101) snaps in an end of left piezoelectric pile (40); The force transferring part of described right piezoelectric pile (28) is that the left side has second substrate (27) that second round end protruding (26) and right side have second groove (102); The right flank of this second round end protruding (26) and cuboid operating bar (10) is connected, and second groove (102) snaps in an end of right piezoelectric pile (28).
- 5. according to the double piezoelectric pile actuator of claim 1 or the positive negative torque of the described output of claim 2; It is characterized in that: the upper surface of described action shaft outer sleeve (7) and lower surface have upper end cover of fixing with screwing (4) (3) and the bottom end cover of fixing with following screw (15) (12) respectively, and the upper outside face of bottom lateral surface of this upper end cover (3) and bottom end cover (12) and the inwall of action shaft outer sleeve (7) fit.
- 6. the double piezoelectric pile actuator of the positive negative torque of output according to claim 5 is characterized in that: the lower end permanent joint of described action shaft outer sleeve (7) is for the following rectangular block (13) of the lower port that is connected bottom end cover (12) and be connected with the lower surface of this time rectangular block (13) and screwed vertical time cylindrical bar (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110006224XA CN102064730B (en) | 2011-01-12 | 2011-01-12 | Dual-piezoelectric stack actuator for outputting positive and negative torques |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110006224XA CN102064730B (en) | 2011-01-12 | 2011-01-12 | Dual-piezoelectric stack actuator for outputting positive and negative torques |
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| Publication Number | Publication Date |
|---|---|
| CN102064730A CN102064730A (en) | 2011-05-18 |
| CN102064730B true CN102064730B (en) | 2012-06-13 |
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| CN201110006224XA Expired - Fee Related CN102064730B (en) | 2011-01-12 | 2011-01-12 | Dual-piezoelectric stack actuator for outputting positive and negative torques |
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| JP5808000B2 (en) * | 2011-07-08 | 2015-11-10 | オリンパス株式会社 | Inertial drive actuator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699743A (en) * | 2009-11-11 | 2010-04-28 | 西安交通大学 | Symmetric tension-compression double piezoelectric pile actuator |
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| KR101138397B1 (en) * | 2005-09-27 | 2012-04-26 | 삼성전자주식회사 | Piezoelectric actuator, apparatus and method for operating it |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699743A (en) * | 2009-11-11 | 2010-04-28 | 西安交通大学 | Symmetric tension-compression double piezoelectric pile actuator |
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