CN203516635U - Gear shaping transmission mechanism adopting piezoelectric linear motors - Google Patents
Gear shaping transmission mechanism adopting piezoelectric linear motors Download PDFInfo
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- CN203516635U CN203516635U CN201320542380.2U CN201320542380U CN203516635U CN 203516635 U CN203516635 U CN 203516635U CN 201320542380 U CN201320542380 U CN 201320542380U CN 203516635 U CN203516635 U CN 203516635U
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Abstract
本实用新型涉及一种采用压电直线电机的插齿传动机构。它包括压电直线电机和从动件，所述从动件上分布有等距的销轴，所述压电直线电机以三个一组的交错平行布置在相对静止件上，每个压电直线电机通过连杆连接一个插齿，插齿与从动件之间的相对位置应使插齿的齿尖可触动等距分布的销轴。插齿按等时间相位差依次轮流做等幅往复运动，顺序拨动从动件上的销轴，使从动件步进式向前或向后运动。根据销轴的排列方向，可以是直线运动，也可以是圆周运动或弧线运动。本实用新型是实现一种重量轻、传动比大、步进式、无需制动、双向运动的压电直线电机驱动的平动或转动传动机构。在保留压电直线电机优点的同时，成倍提高其输出推力。
The utility model relates to a gear-shaping transmission mechanism adopting a piezoelectric linear motor. It includes a piezoelectric linear motor and a follower, and equidistant pin shafts are distributed on the follower, and the piezoelectric linear motor is arranged in a group of three in parallel on the relative stationary part, and each piezoelectric The linear motor is connected to a gear through a connecting rod, and the relative position between the gear and the follower should be such that the tooth tips of the gear can touch the pins distributed equidistantly. The shapers make equal-amplitude reciprocating motions in turn according to the equal time phase difference, and sequentially move the pin shafts on the follower, so that the follower moves forward or backward step by step. According to the arrangement direction of the pin shaft, it can be linear motion, circular motion or arc motion. The utility model realizes a translation or rotation transmission mechanism driven by a piezoelectric linear motor with light weight, large transmission ratio, stepping type, no need for braking, and two-way movement. While retaining the advantages of the piezoelectric linear motor, its output thrust is doubled.
Description
Technical field
The utility model relates to a kind of mechanical transmission mechanism, the step-by-step movement driving mechanism that a kind of especially lightweight velocity ratio is large, specifically a kind of gear shaping driving mechanism that adopts piezoelectric linear motor.
Background technique
The advantage such as piezoelectric linear motor has large, the non-magnetic of thrust to weight ratio, cut off self-lock.But compare electromagnetic machine, add screw rod transmission system, its thrust is less, and application is very limited.The purpose of this utility model is to retain that piezoelectric linear motor volume is little, when lightweight advantage, by the thrust of gear shaping driving mechanism amplification piezoelectric linear electric motor, to realize the lightweight of translation or rotation drive machine.
The existing rotating mechanism of piezoelectric linear motor that utilizes rotates by friction driving wheel disc outer round surface with the type motor drive terminal.This scheme needs very large precompression, and very high to the alignment of wheel disc outer surface and surface Machining requirement, driving moment is little.
Model utility content
The utility model object is the defect existing for prior art, a kind of gear shaping driving mechanism that adopts piezoelectric linear motor is provided, realizes that lightweight, velocity ratio is large, step-by-step movement, the translation driving without the piezoelectric linear motor of braking, bidirectional-movement or rotate transmission.When retaining piezoelectric linear motor advantage, significantly improve its thrust output.
The gear shaping that the utility model is driven by the piezoelectric linear motor of ternary interlaced arrangement and be distributed with isometric pin driven member and form.Gear shaping is pressed the alternate play constant amplitude to-and-fro motion successively of equal time phase difference, and order is stirred the bearing pin on driven member, and driven member step-by-step movement is moved forwards or backwards.According to the orientation of bearing pin, driven member can be straight line motion, can be also circular movement or movement in a curve.
The working principle of the present utility model gear shaping that to be gear shaping transmission device driven by the piezoelectric linear motor of ternary interlaced arrangement and be distributed with isometric pin driven member and form.Gear shaping is pressed the alternate play constant amplitude to-and-fro motion successively of equal time phase difference, and order is stirred the bearing pin on driven member, is that driven member step-by-step movement moves forwards or backwards.During this gear shaping transmission device gear shaping motion, three step-lengths are one-period.
Described gear shaping is triplets, and the facewidth is 2d, and space width is d, the isosceles triangle that crown is acute angle.Three gear shaping overlapping arrangements from high to low, take turns doing constant amplitude to-and-fro motion and drive bearing pin group to rotate; Described bearing pin group is arranged in a straight line or circumference, and bearing pin external diameter is d, and center square is 3d.
Three gear shapings of described gear shaping group are driven by three piezoelectric linear motors respectively, are arranged on relative static element.
Described bearing pin group is equidistantly arranged, and is arranged on driven member.Driven member can be the turntable rotating around fixed axis, can be also the slide unit being led by linear rail.
Described gear shaping driving mechanism utilizes gear shaping to be less than the thrust that the acute angle of 45 ° can amplification piezoelectric linear electric motor.Inclined-plane effect makes the multiplication of ultrasound electric machine thrust, amplifies motor thrust.
The rotation arm of force that described gear shaping driving mechanism amplifies rotating mechanism can amplify velocity ratio, and the while is the thrust of amplification piezoelectric linear electric motor also.Increase runner diameter, increase power arm, effectively amplify output torque.
According to above-mentioned model utility design, the utility model adopts following technical proposals:
A kind of gear shaping driving mechanism of employing piezoelectric linear motor.It comprises piezoelectric linear motor and driven member, on described driven member, be distributed with equidistant bearing pin, described piezoelectric linear motor is with ternary staggered being arranged in parallel on relative static element, each piezoelectric linear motor connects a gear shaping by connecting rod, and the relative position between gear shaping and driven member should make the crown of gear shaping can touch the bearing pin being equally spaced.
The facewidth of described gear shaping is 2d, and space width is d, the isosceles triangle that crown is acute angle; Bearing pin is arranged in a straight line or circle or circular arc, and bearing pin external diameter is d, and center square is 3d.
Described driven member is the turntable rotating around fixed axis, or the slide unit being led by linear rail.
The utility model compared with prior art has following outstanding substantive distinguishing features and remarkable advantage:
1. gear shaping driving mechanism is simple in structure, and overall weight is light, low cost of manufacture.The inclined-plane effect of gear shaping makes the multiplication of ultrasound electric machine thrust, amplifies motor thrust.It is little that while piezoelectric straight line ultrasound electric motor has volume, and quality is light, thin thickness, and low noise, without advantages such as electromagnetic interference.So the gear shaping driving mechanism overall structure that piezoelectric ultrasonic motor drives is simple, overall weight is light, low cost of manufacture.
2. piezoelectric straight line ultrasound electric motor has many features that are better than electromagnetic machine.Piezoelectric straight line ultrasound electric motor is lightweight, large stroke reciprocating, responds soon, controls New-type electric machine easily.Large one more than the order of magnitude than conventional motors of its thrust to weight ratio, and its to have volume little, quality is light, thin thickness, low noise, without advantages such as electromagnetic interference.
3. keep not power consumption of original position during gear shaping stop motion, can self-locking during power-off, without break, motion is steadily.Three gear shaping to-and-fro motion successively, three step-lengths are one-period.One-period finishes, gear shaping just in time with the engagement of next bearing pin, so power-off is can self-locking, without break.
4. the flexible movements of gear shaping driving mechanism are reliable, are easy to control accurately stepping.Piezoelectric straight line ultrasound electric motor is to respond soon, control New-type electric machine easily.The constant amplitude to-and-fro motion of Electric Machine Control gear shaping, is that gear shaping flexible movements are reliable, is easy to control.
Accompanying drawing explanation
Fig. 1 is theory structure schematic diagram of the present utility model.Fig. 2 is the side view of Fig. 1.
Fig. 3 is bearing pin and gear shaping size schematic diagram.
Fig. 4 is gear shaping Kinematic Decomposition figure.
Fig. 5 is for reducing drift angle foe and aft force schematic diagram.
Fig. 6 is for increasing power arm schematic diagram.
Fig. 7 is that specific embodiment turns over the principle simplified schematic diagram of climbing screen work device.
Fig. 8 is that specific embodiment turns over the structural representation of climbing screen work device.
Fig. 9 is that specific embodiment turns over the explosive view of climbing screen work device.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is elaborated:
embodiment one:
Referring to Fig. 1 and Fig. 2, the gear shaping driving mechanism of this employing piezoelectric linear motor comprises piezoelectric linear motor and driven member, on described driven member, be distributed with equidistant bearing pin, described piezoelectric linear motor is with ternary staggered being arranged in parallel on relative static element, each piezoelectric linear motor connects a gear shaping by connecting rod, and the relative position between gear shaping and driven member should make the crown of gear shaping can touch the bearing pin being equally spaced.
embodiment two:
Referring to Fig. 1 ~ Fig. 6, the present embodiment and embodiment one are basic identical, and specialization is:
The facewidth of described gear shaping is 2d, and space width is d, the isosceles triangle that crown is acute angle; Bearing pin is arranged in a straight line or circle or circular arc, and bearing pin external diameter is d, and center square is 3d.
Described driven member is the turntable rotating around fixed axis, or the slide unit being led by linear rail.
embodiment three:
As shown in Figure 1 and Figure 2, the gear shaping driving mechanism of the present embodiment is mainly by bearing pin, push rod, and ultrasound electric machine forms.The ultrasound electric machine being fixed in dunnage drives gear shaping to do front-rear reciprocation movement by connecting rod, and three gear shapings bearing pins that Continuous Drive is arranged on turntable successively rotate, from but rotatingshaft rotation.
Fig. 3 is bearing pin and gear shaping size schematic diagram.Bearing pin external diameter is d, and center square is a, equals 3d.The gear shaping facewidth is 2d, and space width is d, the isosceles triangle that crown is acute angle.
Fig. 4 is gear shaping Kinematic Decomposition figure.Gear shaping is pressed the alternate play constant amplitude to-and-fro motion successively of equal time phase difference, and order is stirred the bearing pin on driven member, and driven member step-by-step movement is moved forwards or backwards.Gear shaping tertiary wave is moved as one-period.
Fig. 5 is for reducing drift angle foe and aft force schematic diagram.Reduce gear shaping drift angle, increase motor thrust.
Fig. 6 is power arm schematic diagram.Increase runner diameter, increase power arm, effectively amplify output torque.In figure, r is power arm.
Fig. 5 and Fig. 6 have explained laborsaving principle of the present utility model, reduce gear shaping drift angle, increase motor thrust; Increase runner diameter, increase power arm, effectively amplify output torque.
Fig. 7 is that specific embodiment of the utility model is turned over the principle simplified schematic diagram of climbing screen work device.
Fig. 8 turns over the structure of climbing screen work device, a kind of turning over of being driven by piezoelectric linear motor gear shaping driving mechanism climbed screen work device, be by the piezoelectric linear motor that turns over interlaced arrangement on the turning axle, body of climbing screen work device body, body both sides, be arranged on the isometric pin rotating disk driven member on turning axle and the mechanical grip paw that is fixedly connected with turning axle forms.Its explosive view as shown in Figure 9.
The thrust of existing linear ultrasonic motor is little, limits its application, and existing screen work fetching device, need to take guide rail and the guide pulley system in a lot of spaces.Gear shaping driving mechanism inclined-plane effect makes the multiplication of ultrasound electric machine thrust, has increased motor thrust, has increased power arm, effectively amplifies the advantage of output torque, makes to turn over and climbs screen work device lighter weight, and small volume, easily controls, and motion flexibly.Turn over and climb screen work device by the unclamping and clamp of paw, piezoelectric linear motor gear shaping driving mechanism drives turning axle to rotate simultaneously, realizes it and turns over and climb.
Claims (3)
1. a gear shaping driving mechanism that adopts piezoelectric linear motor, comprise piezoelectric linear motor (8) and driven member (2), it is characterized in that: on described driven member (2), be distributed with equidistant bearing pin (1), described piezoelectric linear motor (8) is with ternary staggered being arranged in parallel on relative static element (4), each piezoelectric linear motor connects a gear shaping (5) by connecting rod (7), the bearing pin (1) that the relative position between gear shaping (5) and driven member should make the crown of gear shaping (5) touch to be equally spaced.
2. the gear shaping driving mechanism of employing piezoelectric linear motor according to claim 1, is characterized in that: the facewidth of described gear shaping (5) is 2d, and space width is d, the isosceles triangle that crown is acute angle; Bearing pin (1) is arranged in a straight line or circle or circular arc, and bearing pin (1) external diameter is d, and center square is 3d.
3. according to the gear shaping driving mechanism that adopts piezoelectric linear motor described in claim 1 or 2, it is characterized in that: described driven member (2) is the turntable rotating around fixed axis, or the slide unit being led by linear rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320542380.2U CN203516635U (en) | 2013-09-03 | 2013-09-03 | Gear shaping transmission mechanism adopting piezoelectric linear motors |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320542380.2U CN203516635U (en) | 2013-09-03 | 2013-09-03 | Gear shaping transmission mechanism adopting piezoelectric linear motors |
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| CN203516635U true CN203516635U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320542380.2U Expired - Fee Related CN203516635U (en) | 2013-09-03 | 2013-09-03 | Gear shaping transmission mechanism adopting piezoelectric linear motors |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113581771A (en) * | 2021-07-26 | 2021-11-02 | 哈尔滨工业大学（深圳） | Automatic positioning sliding device, sliding equipment and method for realizing automatic positioning |
| CN113586680A (en) * | 2021-07-26 | 2021-11-02 | 哈尔滨工业大学（深圳） | Multidimensional movement device for automatic positioning based on cooperation of male cone and female cone |
-
2013
- 2013-09-03 CN CN201320542380.2U patent/CN203516635U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113581771A (en) * | 2021-07-26 | 2021-11-02 | 哈尔滨工业大学（深圳） | Automatic positioning sliding device, sliding equipment and method for realizing automatic positioning |
| CN113586680A (en) * | 2021-07-26 | 2021-11-02 | 哈尔滨工业大学（深圳） | Multidimensional movement device for automatic positioning based on cooperation of male cone and female cone |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20140903 |
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| EXPY | Termination of patent right or utility model |