CN202969621U - Piezoelectric variable friction shock-absorption energy dissipation device - Google Patents
Piezoelectric variable friction shock-absorption energy dissipation device Download PDFInfo
- Publication number
- CN202969621U CN202969621U CN 201220633674 CN201220633674U CN202969621U CN 202969621 U CN202969621 U CN 202969621U CN 201220633674 CN201220633674 CN 201220633674 CN 201220633674 U CN201220633674 U CN 201220633674U CN 202969621 U CN202969621 U CN 202969621U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- piezoelectric ceramic
- ceramic actuator
- top cover
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
A piezoelectric variable friction shock-absorption energy dissipation device comprises an outer shell formed by a top cover, a base plate, a left baffle, a right baffle, a front lateral plate and a rear lateral plate in a connection mode, and a sleeve, wherein one end of the sleeve is bonded with a base support seat arranged on the base plate, the other end of the sleeve faces a top support seat arranged on the bottom surface of the top cover, a gaps exits between the sleeve and the top support seat, a piezoelectric ceramic actuator is arranged in the sleeve, two ends of the piezoelectric ceramic actuator are both supported on corresponding support seats through semi-spherical supports, the outer side of the left baffle is connected with a left pulling rod through a hexagon nut, and a right pulling rod penetrates the right baffle and then is connected with the lateral wall of the sleeve. The piezoelectric variable friction shock-absorption energy dissipation device is stable in work performance, the piezoelectric ceramic actuator is not damaged easily and is convenient to detach and install, the loss of applied pressure is small, the pre-pressing force is applied conveniently, and the instability of the friction coefficient due to the fact that a piston rotates along the axis is prevented.
Description
Technical field
The utility model relates to the energy-dissipating and shock-absorbing technical field, is specifically related to a kind of piezoelectricity and becomes the friction damping sinker.
Background technology
Common friction energy dissipation device is a kind of passive energy-consuming shock absorber commonly used.When being set in slidable common friction energy dissipation device under large shake effect, but differing under little shake effect and slide surely, so can not play the energy-dissipating and shock-absorbing effect under little shake effect; In contrast, set the friction energy dissipation device that slides under little shake effect, because fixing frictional force is too little, cause the damping capacity under large shake effect inadequate.
Piezoelectricity becomes the friction damping sinker and can come the friction of real time altering energy consumer to play sliding power by the normal pressure of regulating on frictional contact surface, thereby reaches the purpose of structure being carried out half ACTIVE CONTROL.Wherein main utilization is that the intelligent piezo ceramic driver can change electric energy into the ability of mechanical energy.
China's patent No. is that the patent of CN 101250909A has been announced a kind of piezoelectricity friction intelligent damper, but its textural not special not shear-stable characteristic of piezoelectric ceramic actuator of considering, piezoelectric ceramic actuator is very likely cut bad because of the dislocation of up and down brake pad, applying of precompression neither be very convenient simultaneously, and initial precompression and piezoelectric ceramic actuator are exerted pressure and are not the relation of stack, moreover the up and down brake pad connects with rod member, limit the distortion of piezoelectric ceramic actuator, made pressure be applied with loss.
Summary of the invention
The characteristics such as in order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of piezoelectricity to become the friction damping sinker, has response rapidly, exerts oneself large, and processing is simple, and the dismounting scheme is various.
In order to achieve the above object, the technical solution adopted in the utility model is:
piezoelectricity becomes the friction damping sinker, comprise by top cover 6, base plate 7, right baffle-plate 10, the shell that right baffle plate 13 and front and back side plate 5 connect to form, also comprise sleeve 3, one end of sleeve 3 is bonded on the end bearing 8 that is arranged on base plate 7, the other end towards be arranged on top cover 6 bottom surfaces topmast seat 9 and and 9 of topmast seats leave the space, piezoelectric ceramic actuator 2 is arranged in sleeve 3, the two ends of piezoelectric ceramic actuator 2 are all supported 11 by hemisphere and are supported in corresponding bearing, right baffle-plate 10 outsides connect left lever 12 by hex nut 1, right pull bar 4 passes right baffle plate 13 and is connected with sleeve 3 sidewalls.
The quantity of described sleeve 3 has a plurality of, and right pull bar 4 is connected on the sleeve 3 of the rightmost side.
Described hemisphere supports 11 sphere bottom and is connected in corresponding base by cylinder axis, and the sphere top is stretched in sleeve 3 and contacted with the end of piezoelectric ceramic actuator 2.
Described sleeve 3 inside are square duct, before and after being parallel on the direction of side plate 5 piezoelectric ceramic actuator 2 be close to inwall, perpendicular to leaving the space between piezoelectric ceramic actuator 2 and inwall on the direction of front and back side plate 5.
Wear-resisting carbon fiber friction resistance material is posted on the top of the bottom of described top cover 6 and base plate 7.
Be useful on the fastening bolt that applies downward pressure on described top cover 6.
Described topmast seat 9, end bearing 8, hemisphere support 11 and sleeve 3 consist of piston mechanisms, the height of this piston mechanism is a little more than the shell clear height, thereby can make between piston mechanism and shell by the fastening bolt on adjusting top cover 6 and produce precompression, reach required maximum frictional resistance.
All have the grooved track of the described piston mechanism transverse shifting of restriction on described top cover 6 and base plate 7.
Compared with prior art, the utility model has the advantages that:
1, the energy consumer stable work in work, piezoelectric ceramic actuator is difficult for destroyed, can use for a long time.
2, the energy consumer easy accessibility can be according to the size of structure needs damping force, and piezoelectric ceramic actuator can be taked one, and two, three three kinds different assembling schemes.
3, it is less that piezoelectric ceramic actuator pressure applies loss, can not retrain up and down just constrained sleeve of left and right because installed.
4, the energy consumer precompression applies conveniently, can reach required initial precompression by simple adjustment fastening bolt, and with the pressure of piezoelectric ceramic actuator be the relation of stack.
5, the internal piston sliding tray is square, can prevent because of piston unstable along the friction factor that axis rotation causes.
Description of drawings
Fig. 1 is the total sectional drawing of the utility model energy consumer.
Fig. 2 is the utility model energy consumer top view.
The specific embodiment:
Below by accompanying drawing, the technical solution of the utility model is described in further detail.
As depicted in figs. 1 and 2, the utility model is that a kind of piezoelectricity becomes the friction damping sinker, and its shell is comprised of top cover 6, base plate 7, right baffle-plate 10, right baffle plate 13 and biside plate 5; Top cover 6 posts wear-resisting carbon fiber friction resistance material with the inner surface of base plate 7, and topmast seat 9 is set on the friction resistance material of top cover 6, and end bearing 8 is set on the friction resistance material of base plate 7; Place a plurality of sleeves 3 side by side in the middle of two grooved bearings, sleeve 3 adopts glue to be fixedly connected with end bearing 8, leave the space with 9 of topmast seats and be not connected simultaneously, and contact surface is smooth; Place piezoelectric ceramic actuator 2 in sleeve, piezoelectric ceramic actuator 2 two ends are to support 11 with the fixing hemisphere of bearing, and the sulculus that the power line of piezoelectric ceramic actuator 2 is left by sleeve 3 outer walls is derived; Left lever 12 is connected with right baffle-plate 10 by hex nut 1, and right pull bar 4 passes right baffle plate 13 and is connected with the sleeve 3 of the rightmost side.
Described topmast seat 9, end bearing 8, hemisphere support 11 and sleeve 3 consist of piston mechanisms, and the height of this piston mechanism is a little more than the shell clear height.
This energy consumer both can be used as passive friction energy dissipation device, also can be used as intelligent variable resistance Buddhist nun's friction energy dissipation device.This energy consumer is detachably recombinated, and the size of maximum damping force that can be required according to structure is taked a driver drives or a plurality of driver drives.Its principle is that effect that pull bar is subject to structure drives piston mechanism in shell and carries out the damping power consumption along shell and move, and right pull bar 4 is connected with right hand sleeves 3, and the right hand sleeves 3 whole pistons of drive move together.Piezoelectric ceramic actuator 2 in sleeve 3 is due to the protection that is subject to sleeve 3; stressed even; shear failure can not occur; piezoelectric ceramic actuator 2 two ends are that hemisphere supports 11 simultaneously; formation is articulated and connected; make driver not be subjected to moment of flexure, brought into play well the withstand voltage not anti-characteristic of drawing of piezoelectric ceramic actuator.
When it during as passive friction energy dissipation device, because the height of affiliated piston mechanism is a little more than the clear height of shell, so can make between piston and shell and produce precompression by regulating fastening bolt on top cover 6, thereby reach the requirement of required maximum frictional resistance.
When it during as intelligent variable resistance Buddhist nun's friction energy dissipation device, because sleeve 3 is fixing with end bearing 8, sleeve 3 is smooth with topmast seat 9 contact surfaces, leave the gap between their up and down simultaneously, so sleeve 3 can confined piston the distortion up and down of mechanism, the distortion of piston can only be provided by the piezoelectric ceramic actuator of sleeve inner.Obtain the reactiveness of structure when system, need to export great damping force by the intelligent control algorithm analysis, then just can make driver produce distortion by the voltage of controlling external power supply and reach requirement.
Claims (8)
1. piezoelectricity becomes the friction damping sinker, comprise by top cover (6), base plate (7), right baffle-plate (10), the shell that right baffle plate (13) and front and back side plate (5) connect to form, it is characterized in that, also comprise sleeve (3), one end of sleeve (3) is bonded on the end bearing (8) that is arranged on base plate (7), the other end towards be arranged on top cover (6) bottom surface topmast seat (9) and and topmast seat (9) between leave the space, piezoelectric ceramic actuator (2) is arranged in sleeve (3), the two ends of piezoelectric ceramic actuator (2) are all supported (11) by hemisphere and are supported in corresponding bearing, right baffle-plate (10) outside connects left lever (12) by hex nut (1), right pull bar (4) passes right baffle plate (13) and is connected with sleeve (3) sidewall.
2. become the friction damping sinker according to the described piezoelectricity of claim 1, it is characterized in that, the quantity of described sleeve (3) has a plurality of, and right pull bar (4) is connected on the sleeve (3) of the rightmost side.
3. become the friction damping sinker according to the described piezoelectricity of claim 1, it is characterized in that, the sphere bottom that described hemisphere supports (11) is connected in corresponding base by cylinder axis, and the sphere top is stretched in sleeve (3) and contacted with the end of piezoelectric ceramic actuator (2).
4. become the friction damping sinker according to the described piezoelectricity of claim 1, it is characterized in that, described sleeve (3) inside is square duct, be parallel to before and after side plates (5) direction on piezoelectric ceramic actuator (2) be close to inwall, perpendicular to leaving the space between piezoelectric ceramic actuator (2) and inwall on the direction of front and back side plate (5).
5. become the friction damping sinker according to the described piezoelectricity of claim 1, it is characterized in that, wear-resisting carbon fiber friction resistance material is posted on the top of the bottom of described top cover (6) and base plate (7).
6. become the friction damping sinker according to the described piezoelectricity of claim 1, it is characterized in that, described top cover is useful on the fastening bolt that applies downward pressure on (6).
7. become the friction damping sinker according to the described piezoelectricity of claim 6, it is characterized in that, described topmast seat (9), end bearing (8), hemisphere support (11) and sleeve (3) consists of piston mechanism, the height of this piston mechanism is a little more than the shell clear height, thereby can make between piston mechanism and shell by the fastening bolt on adjusting top cover (6) and produce precompression, reach required maximum frictional resistance.
8. become the friction damping sinker according to the described piezoelectricity of claim 7, it is characterized in that, all have the grooved track of the described piston mechanism transverse shifting of restriction on described top cover (6) and base plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633674 CN202969621U (en) | 2012-11-26 | 2012-11-26 | Piezoelectric variable friction shock-absorption energy dissipation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633674 CN202969621U (en) | 2012-11-26 | 2012-11-26 | Piezoelectric variable friction shock-absorption energy dissipation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202969621U true CN202969621U (en) | 2013-06-05 |
Family
ID=48510715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220633674 Expired - Fee Related CN202969621U (en) | 2012-11-26 | 2012-11-26 | Piezoelectric variable friction shock-absorption energy dissipation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202969621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966200A (en) * | 2012-11-26 | 2013-03-13 | 西安建筑科技大学 | Piezoelectric semiactive friction damper |
-
2012
- 2012-11-26 CN CN 201220633674 patent/CN202969621U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966200A (en) * | 2012-11-26 | 2013-03-13 | 西安建筑科技大学 | Piezoelectric semiactive friction damper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202380601U (en) | Variable-friction damper | |
| CN103485436A (en) | Self-resetting piezoelectric semi-active friction damper | |
| CN201202754Y (en) | Dry type multiple-sheet triboelectric magnetic disk type betatopic brake | |
| CN202483026U (en) | Rod type piezoelectric friction damper | |
| CN100585217C (en) | The viscous damper that has axially stop block | |
| CN102966200A (en) | Piezoelectric semiactive friction damper | |
| CN105155716B (en) | A kind of double sliding/friction sinkers | |
| CN108035598B (en) | Semi-active/passive hybrid damping device | |
| CN202969621U (en) | Piezoelectric variable friction shock-absorption energy dissipation device | |
| CN102051924A (en) | Smart piezoelectric damping controller | |
| CN206737177U (en) | A kind of active friction energy consumer of ultra-magnetic telescopic half | |
| CN207646927U (en) | A kind of piezoelectricity change friction leading type composite shock-absorbing device | |
| CN2866969Y (en) | Spring energy-accumulating braking device | |
| CN201231281Y (en) | Compensation mechanism for straightener roll-changing clamping device | |
| CN108035452A (en) | A kind of piezoelectricity becomes friction leading type composite shock-absorbing device | |
| CN204126074U (en) | Multilayer barrel type piezoelectric friction damper | |
| CN203187341U (en) | Electromagnetic folding type brake used for elevator traction machine | |
| CN204512275U (en) | Spring damping and vibration isolating device | |
| CN208605543U (en) | Buffer unit | |
| CN209457190U (en) | Restoration type semi- active control damper under a kind of coupling earthquake | |
| CN106958300A (en) | A kind of active friction energy consumer of ultra-magnetic telescopic half | |
| CN202200564U (en) | Hydraulic machine capable of bearing larger offset loading force | |
| CN206050300U (en) | A kind of base plate transmission device that film packer is wound for M types | |
| CN108979282B (en) | Two-way displacement amplification shape memory alloy damper | |
| CN205350143U (en) | A stopper for seat actuator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130605 Termination date: 20141126 |
|
| EXPY | Termination of patent right or utility model |