CN104638976B - Generating deceleration strip adopting piezoelectric material - Google Patents
Generating deceleration strip adopting piezoelectric material Download PDFInfo
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- CN104638976B CN104638976B CN201510052557.4A CN201510052557A CN104638976B CN 104638976 B CN104638976 B CN 104638976B CN 201510052557 A CN201510052557 A CN 201510052557A CN 104638976 B CN104638976 B CN 104638976B
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- deceleration strip
- circular arc
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- cross recess
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Abstract
The invention discloses a generating deceleration strip adopting a piezoelectric material. The deceleration strip is provided with a plurality of identical generating units; cross-shaped grooves are formed in lower bases of the generating units; the lower bases are fixedly connected with the lower ends of upper bases; circular-arc top bases and center grooves in the upper bases construct sliding pairs; one end of each variable-pitch worm extends into center countersinks of the cross-shaped grooves, and the other ends of the variable-pitch worms are connected with bearings which are embedded into the centers of the circular-arc top bases; the circular-arc upper bases are connected with circular-arc upper bases by using springs; four worm wheels provided with offset pins are symmetrically arranged on the bottom surfaces of the cross-shaped grooves in the lower bases and construct worm wheel pairs with the variable-pitch screws; one end of each connecting rod is connected with the offset pins of respective worm, and the other end of each connecting rod is connected with a slide block lug in respective movable pressure plate assembly; each slide block and the respective cross-shaped groove construct a sliding pair; piezoelectric crystals are arranged on the tops of the cross-shaped grooves. A sliding pressure plate is driven to extrude the piezoelectric crystals through the connecting rods to generate power, so that energy lost when vehicles pass can be utilized fully, and relatively stable current is generated.
Description
Technical field
The present invention relates to a kind of deceleration strip, more particularly to a kind of Power-generation-typdeceleration deceleration strip of employing piezoelectric.
Background technology
At present, the external test being generated electricity based on piezoquartz road is in interior enforcement on a large scale, but existing deceleration strip for power generation is using cutting magnetic induction line principle mostly, and a small amount of using the deceleration strip for power generation of piezoelectric fail to make full use of vehicle by when the kinetic energy that loses, their major parts are absorbed by power buffer unit, and generating efficiency is low.
Content of the invention
For the energy losing when making full use of vehicle by deceleration strip, improve the generating efficiency of deceleration strip.It is an object of the invention to provide a kind of Power-generation-typdeceleration deceleration strip of employing piezoelectric, more fully hereinafter the energy of car deceleration process losses can be converted to relatively uniform stable electrical power storage and utilization, structure is reliable.
The technical solution adopted in the present invention is:
It is provided with multiple structure identical generator units in deceleration strip along its length, each generator unit all has cross recess on lower bottom base, lower bottom base imbeds road surface, and counterbore is opened at cross recess center, and lower bottom base upper end cross recess is fixedly connected with circular arc upper bed-plate lower end cross projection；Circular arc footstock constitutes sliding pair with circular arc upper bed-plate central recess, one end of Changeable Lead worm screw extend in the counterbore of cross recess center, the other end of Changeable Lead worm screw is connected with the bearing at embedment circular arc footstock center, and circular arc footstock bottom surface is connected with circular arc upper bed-plate shoulder spring；Four worm wheel symmetrical with offset pins are arranged on lower bottom base cross recess bottom surface, constitute worm gear with Changeable Lead worm screw respectively, one end of every connecting rod biasing pin connection with respective worm gear respectively, the other end of every connecting rod is connected with the slide block earrings in respective movable pressing board assembly respectively, slide block in each movable pressing board assembly constitutes sliding pair with respective cross recess respectively, and cross recess top is respectively equipped with piezoquartz.
On described Changeable Lead worm screw, the helical pitch at two ends is little, and middle part helical pitch is big.
The installation initial phase of described four worm gear biases pin differs 90 ° successively.
Described movable pressing board assembly, is made up of slide block and pressing plate two parts, and pressing plate contact surface is more than or equal to piezoelectric crystal surface.
Compared with background technology, the invention has the benefit that
1st, worm and gear and slider-crank mechanism is utilized to realize buffering and speedup process based on the power that piezoelectric principle generates electricity, spring can drive sliding clamp repeatedly to extrude piezoelectric in compression and recovery process, improves the utilization rate of vehicle off-energy.
2nd, the symmetrical piezoquartz region of the underground space increases generating area, on the basis of the axle of worm screw, four groups of parts being made up of worm gear, connecting rod, sliding clamp and piezoquartz are symmetrically installed between Up/down base, alternately extruding generates electricity, not only increase generating efficiency, also enhance the stability producing electric current.
3rd, the Changeable Lead worm screw adopting improves the uniformity in extruding generating cycle, extends the life-span of device.
Brief description
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is underground device top partial view diagram.
In figure: 1, circular arc footstock, 2, bearing, 3, four springs, 4, Changeable Lead worm screw, 5, four worm gears with offset pins, 6, four connecting rods, 7, four movable pressing board assemblies, 8, four groups of piezoquartzes, 9, lower bottom base, 10, upper bed-plate.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1 and Figure 2, the present invention is provided with multiple structure identical generator units along its length in deceleration strip, multiple structure identical generator units deceleration strip can equidistantly or Unequal distance arrangement.Each generator unit all includes: circular arc footstock 1, bearing 2, four springs 3, Changeable Lead worm screw 4, four worm gears 5 with offset pins, four connecting rods 6, four movable pressing board assemblies 7, four groups of piezoquartzes 8, lower bottom base 9 and upper bed-plate 10；Cross recess is had on lower bottom base 9，Lower bottom base 9 imbeds road surface，Counterbore is opened at cross recess center，Lower bottom base 9 upper end cross recess is fixedly connected with circular arc upper bed-plate 10 lower end cross projection，Circular arc footstock 1 constitutes sliding pair with circular arc upper bed-plate 10 central recess，One end of Changeable Lead worm screw 4 extend in the counterbore of cross recess center，The other end of Changeable Lead worm screw 4 is connected with the bearing 2 at embedment circular arc footstock 1 center，Circular arc footstock 1 bottom surface is connected with four springs 3 with circular arc upper bed-plate 10 shoulder，Four worm gears 5 with offset pins are symmetrically mounted on lower bottom base 9 cross recess bottom surface，Constitute worm gear with Changeable Lead worm screw 4 respectively，One end of every connecting rod 6 biasing pin connection with respective worm gear respectively，The other end of every connecting rod is connected with the slide block earrings in respective movable pressing board assembly 7 respectively，Slide block in each movable pressing board assembly constitutes sliding pair with respective cross recess respectively，Cross recess top is respectively equipped with piezoquartz 8.
On described Changeable Lead worm screw 4, the helical pitch at two ends is little, and middle part helical pitch is big.
The installation initial phase of described four worm gear 5 biases pin with offset pins differs 90 ° successively.
Described movable pressing board assembly 7, is made up of slide block and pressing plate two parts, and pressing plate contact surface is more than or equal to piezoelectric crystal surface.
The operation principle of the present invention and process are:
When vehicle crosses deceleration strip, wheel first pushes the circular arc footstock of deceleration strip, now, spring-compressed, worm screw moves down Changeable Lead with rolling bearing, and rotate and drive four matched worm gear wheel with offset pins, the worm gear with offset pins passes through its offset pins drive connecting rod movement hinged therewith then, last connecting rod drives sliding clamp assembly extruding piezoquartz to generate electricity.When wheel is through later, the spring being compressed resiles, storage deformation energy release in the spring, drives circular arc footstock and Changeable Lead worm screw to move upwards, Changeable Lead worm screw simultaneously rotates；The matched worm gear wheel with offset pins of Changeable Lead worm drive, the worm gear drivening rod with offset pins moves, and connecting rod drives sliding clamp assembly extruding crystal to generate electricity, and is stored in electrical storage device, uses for street lighting.
Wherein, four groups of installation sites by the worm gear with offset pins, connecting rod, part that sliding clamp assembly forms and piezoquartz and work process:
Four groups of parts being made up of the worm gear with offset pins, connecting rod, sliding clamp assembly are on the basis of the axle of Changeable Lead worm screw, symmetrically install between Up/down base, piezoquartz is fixed in lower bottom base four walls corresponding with the pressing plate of movable pressing board assembly, and wherein the offset pins phase angle with offset pins worm gear differs 90 ° successively.Then two adjacent group parts extruding piezoelectric difference half period, two relative group parts steps are identical.When a pair of relative part movable pressing board assembly apart from piezoquartz nearest when, another sliding clamp to part is then farthest apart from piezoquartz, alternately extrudes successively.This kind of arrangement mode can reduce the non-generating dutation of extruding piezoquartz, improves the seriality generating electricity.
Changeable Lead worm screw raising piezoelectricity cycle uniformity operation principle and process:
Circular arc footstock moves downward in the pressure by vehicle, moves down in whole stroke in Changeable Lead worm screw, and it moves down after speed first becomes greatly and diminishes.According to conventional equal lead worm screw, worm gear rotating speed be also first become big after diminish, the generating cycle of each extruding piezoquartz corresponding first diminishes and becomes big afterwards；Equally, after vehicle leaves, circular arc footstock is moved upwards by spring pressure, and the corresponding generating cycle is also first to diminish to become big afterwards.
Adopt helical pitch small in ends, the Changeable Lead worm-drive of middle large pitch herein.When circular arc footstock moves downward in the pressure by vehicle, in previous half trip, the speed that Changeable Lead worm screw moves down first becomes maximum value by little, and velocity variations can make the worm gear rotating speed that band-offset puts pin change from small to big；But move down with Changeable Lead worm screw, its helical pitch is changed from small to big, little helical pitch transmission can accelerate the rotating speed of the worm gear with offset pins, large pitch transmission can slow down the worm gear rotating speed with offset pins；Then speed and both combined influences to the worm gear rotating speed with offset pins of Changeable Lead transmission are moved down by Changeable Lead worm screw, band-offset can be made to put near worm gear stabilization of speed and certain rotating speed of pin, the generating cycle of each extruding piezoquartz corresponding is also stable at certain value；In the stroke of later half, drive characteristic is symmetrical with front half trip, and the minor cycle that generates electricity also becomes relatively stable.Likewise, after vehicle leaves, during spring-return, situation is similar to, the minor cycle that generates electricity is relatively stable.During whole vehicle passes through, obtaining making up using the generating cycle that Changeable Lead worm-drive makes uneven change becomes uniform, thus the efficiency of generating can be improved, and extends the life-span of whole device.
The movable pressing board assembly that slim slide block and thin pressing plate are combined into can improve mechanical stability and generated energy.Slide block is longer, and longitudinal area is little, and pressing plate is relatively thin, and longitudinal area is big.Sliding clamp moves in the guide rail of fixing upper bed-plate and lower bottom base combination composition, and slim slide block strengthens the stability of sliding clamp motion, and thin pressing plate increases the squish area with piezoquartz, improves generated energy.
Claims (4)
1. a kind of Power-generation-typdeceleration deceleration strip of employing piezoelectric, it is characterized in that: it is provided with multiple structure identical generator units along its length in deceleration strip, each generator unit all has cross recess on lower bottom base, lower bottom base imbeds road surface, counterbore is opened at cross recess center, and lower bottom base upper end cross recess is fixedly connected with circular arc upper bed-plate lower end cross projection；Circular arc footstock constitutes sliding pair with circular arc upper bed-plate central recess, one end of Changeable Lead worm screw extend in the counterbore of cross recess center, the other end of Changeable Lead worm screw is connected with the bearing at embedment circular arc footstock center, and circular arc footstock bottom surface is connected with circular arc upper bed-plate shoulder spring；Four worm wheel symmetrical with offset pins are arranged on lower bottom base cross recess bottom surface, constitute worm gear with Changeable Lead worm screw respectively, one end of every connecting rod biasing pin connection with respective worm gear respectively, the other end of every connecting rod is connected with the slide block earrings in respective movable pressing board assembly respectively, slide block in each movable pressing board assembly constitutes sliding pair with respective cross recess respectively, and cross recess top is respectively equipped with piezoquartz.
2. a kind of employing piezoelectric according to claim 1 Power-generation-typdeceleration deceleration strip it is characterised in that: on described Changeable Lead worm screw, the helical pitch at two ends is little, and middle part helical pitch is big.
3. a kind of employing piezoelectric according to claim 1 Power-generation-typdeceleration deceleration strip it is characterised in that: the described four installation initial phases with the worm gear biases pin of offset pins differ 90 ° successively.
4. a kind of employing piezoelectric according to claim 1 Power-generation-typdeceleration deceleration strip it is characterised in that: described movable pressing board assembly, be made up of slide block and pressing plate two parts, pressing plate contact surface be more than or equal to piezoelectric crystal surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052557.4A CN104638976B (en) | 2015-02-02 | 2015-02-02 | Generating deceleration strip adopting piezoelectric material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052557.4A CN104638976B (en) | 2015-02-02 | 2015-02-02 | Generating deceleration strip adopting piezoelectric material |
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| Publication Number | Publication Date |
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| CN104638976A CN104638976A (en) | 2015-05-20 |
| CN104638976B true CN104638976B (en) | 2017-01-18 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245489A (en) * | 2016-09-20 | 2016-12-21 | 阜南县申通机械制造有限公司 | A kind of anti-freeze intelligence system of bridge floor |
| CN106368136B (en) * | 2016-10-08 | 2018-08-21 | 江苏大学 | A kind of piezoelectric type deceleration strip energy recycle device |
| CN107034804A (en) * | 2017-04-19 | 2017-08-11 | 湖南科技大学 | A kind of multistage barrier height adjusting means for lifting deceleration band |
| CN107968600B (en) * | 2017-12-12 | 2020-06-09 | 厦门大学 | Synchronous output wearable piezoelectric vibration energy collecting device |
| CN108755474B (en) * | 2018-05-31 | 2020-06-16 | 北京工业大学 | Lifting type highway deceleration strip capable of generating power |
| CN110359367B (en) * | 2019-03-14 | 2021-03-19 | 长安大学 | Piezoelectric power generation deceleration strip for road |
| CN112391963A (en) * | 2020-11-11 | 2021-02-23 | 长春大学 | Self-powered deceleration strip adjusting device based on PVDF piezoelectric material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100494067B1 (en) * | 2002-02-25 | 2005-06-13 | 한국과학기술연구원 | Microelectromechanical generator using bubbles |
| US7439630B2 (en) * | 2006-09-08 | 2008-10-21 | Helius Inc. | System and methodology for generating electricity using a chemical heat engine and piezoelectric material |
| CN202380416U (en) * | 2011-12-07 | 2012-08-15 | 山东科技大学 | Environment-friendly energy-saving piezoelectric type deceleration strip |
| CN204408217U (en) * | 2015-02-02 | 2015-06-17 | 浙江大学 | A kind of Power-generation-typdeceleration deceleration strip adopting piezoelectric |
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Granted publication date: 20170118 Termination date: 20190202 |