CN105818723B - For the multiple freedom parallel mechanism vibration reduction platform of automobile seat - Google Patents
For the multiple freedom parallel mechanism vibration reduction platform of automobile seat Download PDFInfo
- Publication number
- CN105818723B CN105818723B CN201610280553.6A CN201610280553A CN105818723B CN 105818723 B CN105818723 B CN 105818723B CN 201610280553 A CN201610280553 A CN 201610280553A CN 105818723 B CN105818723 B CN 105818723B
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- Prior art keywords
- platform
- pair
- damper
- fixed platform
- stent
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/50—Seat suspension devices
- B60N2/502—Seat suspension devices attached to the base of the seat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Transportation (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention relates to a kind of multiple freedom parallel mechanism vibration reduction platforms for automobile seat, belong to mechanical damping device technical field, including the carrying platform above fixed platform and fixed platform, automobile seat is connected on carrying platform, it is connected between carrying platform and fixed platform by the identical branch of three structures, three branches are uniformly distributed in 120 ° around the vertical centerline of fixed platform, and three branches include spring, damper, prismatic pair, cylindrical pair and revolute pair.The platform can realize the multivariant seat suspension in space, mitigate influence of the extraneous vibration to driver and passenger, improve comfortableness and security.
Description
Technical field
The present invention relates to a kind of multiple freedom parallel mechanism vibration reduction platforms for automobile seat, belong to mechanical vibration damping dress
Put technical field.
Background technology
With the continuous development of science and technology, the mankind increasingly increase the degree of dependence of motor vehicles, to the comfortable of motor vehicles
Property requirement it is also higher and higher, heavy vehicle, car, commercial vehicle etc. are tight in the vibration problem that road conditions poor condition downward driving generates
Ghost image rings the comfort level of driver and passenger, and fatiguability.The damping technology of existing motor vehicle mainly has：Subtracted using foam-rubber cushion
It shakes, slows down the vibration of seat by the seat, spring, damper of installing vertical direction, the main vibration damping direction of the technology is perpendicular
Nogata is to and the vibration source that vehicle generates is multidirectional, and effectiveness in vibration suppression is relatively poor, and the multi-direction vibration damping of pure mechanic structure is real
Existing mode is complicated, it is difficult to meet the multi-direction vibration damping realized in the confined space.
Invention content
According to the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to：It provides a kind of for motor vehicle
The multiple freedom parallel mechanism vibration reduction platform of seat is, it can be achieved that the multivariant seat suspension in space, mitigates extraneous vibration to driving
Multiply the influence of personnel, improve comfortableness and security.
Multiple freedom parallel mechanism vibration reduction platform of the present invention for automobile seat, including fixed platform and admittedly
Carrying platform above fixed platform connects automobile seat on carrying platform, passes through three between carrying platform and fixed platform
The identical branch connection of structure, three branches are uniformly distributed in 120 ° around the vertical centerline of fixed platform, and three branches include bullet
Spring, damper, prismatic pair, cylindrical pair and revolute pair；
Fixed platform is equipped with stent, and prismatic pair is housed on stent, and prismatic pair includes sliding axle and sliding block, and sliding axle is fixed
On stent, sliding block slides axially on sliding axle, installs spring and damper on sliding block and stent between the bottom end of sliding axle,
Sliding block is equipped with cylindrical pair, and cylindrical pair includes cylindrical shaft and connecting rod, and cylindrical shaft is arranged on sliding block, and cylindrical shaft hangs down with sliding axle
Directly, connecting rod one end slides axially on cylindrical shaft and is moved along shaft rotation, and the connecting rod other end connects carrying platform by revolute pair.
It is connected between the carrying platform and fixed platform of fixed automobile seat by three branches, three movement branch tools
There is identical structure, respectively including a prismatic pair, a cylindrical pair, a fixed length connecting rod and a revolute pair, mobile vice division chief's dress
There are spring and damper；During carrying platform stress, by the action of each joint pair and the effect of spring damping, realize that three are put down
Move the vibration damping in direction.
Preferably, stent is A-frame, and three rack legs of A-frame are in around the vertical centerline of fixed platform
120 ° uniformly distributed.Simple and compact for structure, stability is good.
Preferably, damper is passively controlled electromagnetic damper, and electromagnetic damper connection current regulation unit and power pass
Sensor, current regulation unit connect controller with force snesor.The damping value of damper depends on exciting current, force snesor inspection
To controller, controller determines to be input to electromagnetic damper the data transfer of the electromagnetic damper of survey according to data simulation calculating
Size of current, so as to change damping value, Optimization Vibration effect；And passive electromagnetic damper is simple in structure, low cost, reliability
Higher.
Preferably, the angular range between sliding axle axis and fixed platform plane is 30 ° -45 °.According to structural parameters
Mechanical analysis, when moving the reduction between secondary axis and fixed platform, the equilibrium driving force needed for mobile subjoint is smaller.
The possessed compared with prior art advantageous effect of the present invention is：
For the multiple freedom parallel mechanism vibration reduction platform overall structure simple and compact of automobile seat, full symmetric structure
There is excellent isotropism, it can be achieved that three moving direction three-dimensional vibration dampings, effectively improve vehicle complex road condition when driving to driving
Multiply the buffer protection of personnel, and the platform total quality is light, inertia is small, operable degree is high, dynamic property response is good.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
In figure：1st, connecting rod；2nd, revolute pair；3rd, carrying platform；4th, fixed platform；5th, stent；6th, sliding block；7th, spring；8th, it hinders
Buddhist nun's device；9th, cylindrical shaft；10th, sliding axle.
Specific embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
Embodiment 1
As shown in Figure 1, the multiple freedom parallel mechanism vibration reduction platform for automobile seat includes fixed platform 4 and fixes
The carrying platform 3 of the top of platform 4 connects automobile seat on carrying platform 3, passes through three between carrying platform 3 and fixed platform 4
The identical branch connection of structure, three branches are uniformly distributed in 120 ° around the vertical centerline of fixed platform 4, and three branches include
Spring 7, damper 8, prismatic pair, cylindrical pair and revolute pair；
Fixed platform 4 is equipped with stent 5, and prismatic pair is housed on stent 5, and prismatic pair includes sliding axle 10 and sliding block 6, slides
Axis 10 is fixed on stent 5, and sliding block 6 slides axially on sliding axle 10, on sliding block 6 and stent 5 between the bottom end of sliding axle 10
Spring 7 and damper 8 are installed, sliding block 6 is equipped with cylindrical pair, and cylindrical pair includes cylindrical shaft 9 and connecting rod 1, and cylindrical shaft 9 is arranged on cunning
On block 6, cylindrical shaft 9 is vertical with sliding axle 10, and 1 one end of connecting rod slides axially on cylindrical shaft 9 and moved along shaft rotation, and connecting rod 1 is another
End connects carrying platform 3 by revolute pair 2.
Stent 5 is A-frame, and three rack legs of A-frame are equal in 120 ° around the vertical centerline of fixed platform 4
Cloth, 10 both ends of sliding axle are fixed on by fixed block on three rack legs.
Angular range between 4 plane of 10 axis of sliding axle and fixed platform is 30 ° -45 °.
During practical manufacture, the structure size of vibration reduction platform is designed as the case may be, selects spring 7 and damper 8, it is each
Item basic parameter influences driving equilibrant force during vibration damping.When situation of the motor-driven vehicle going in road conditions complexity, pass through vehicle frame, seat
Vibration is transmitted, the carrying platform 3 of connecting chair is realized that the quick vibration damping of three translation directions responds by three movement branches, carried
The damping property of high seat improves vehicle ride comfort, improves riding comfort.
Embodiment 2
On the basis of embodiment 1, damper 8 selects passively controlled electromagnetic damper, electromagnetic damper connection electric current
It adjusts unit and force snesor, current regulation unit connects controller with force snesor.
The control system is optionally turned on and off, and under control system closed state, electromagnetic damper has itself
Certain damping characteristic works under passive vibration damping state；When control system opens work, the electromagnetism of force snesor detection
For the data transfer of damper to controller, controller determines that the electric current for being input to electromagnetic damper is big according to data simulation calculating
It is small, so as to change damping value, under the premise of avoiding generating resonant frequency to human body, Optimization Vibration effect.
Claims (1)
1. a kind of multiple freedom parallel mechanism vibration reduction platform for automobile seat, it is characterised in that：Including fixed platform (4)
With the carrying platform (3) above fixed platform (4), automobile seat is connected on carrying platform (3), carrying platform (3) and fixed
It is connected between platform (4) by the identical branch of three structures, three branches are in 120 ° around the vertical centerline of fixed platform (4)
Uniformly distributed, three branches include spring (7), damper (8), prismatic pair, cylindrical pair and revolute pair；
Fixed platform (4) is equipped with stent (5), and prismatic pair is housed on stent (5), and prismatic pair includes sliding axle (10) and sliding block
(6), sliding axle (10) is fixed on stent (5), and sliding block (6) slides axially on sliding axle (10), sliding block (6) and stent (5)
Spring (7) and damper (8) are installed, sliding block (6) is equipped with cylindrical pair, and cylindrical pair includes circle between the bottom end of upper sliding axle (10)
Axis of a cylinder (9) and connecting rod (1), cylindrical shaft (9) are arranged on sliding block (6), and cylindrical shaft (9) is vertical with sliding axle (10), connecting rod (1) one
End slides axially on cylindrical shaft (9) and is moved along shaft rotation, and connecting rod (1) other end connects carrying platform (3) by revolute pair (2)；
The stent (5) is A-frame, and three rack legs of A-frame are in around the vertical centerline of fixed platform (4)
120 ° uniformly distributed；The damper (8) is passively controlled electromagnetic damper, electromagnetic damper connection current regulation unit and power
Sensor, current regulation unit connect controller with force snesor；Sliding axle (10) axis and fixed platform (4) plane
Between angular range be 30 ° -45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280553.6A CN105818723B (en) | 2016-04-29 | 2016-04-29 | For the multiple freedom parallel mechanism vibration reduction platform of automobile seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280553.6A CN105818723B (en) | 2016-04-29 | 2016-04-29 | For the multiple freedom parallel mechanism vibration reduction platform of automobile seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105818723A CN105818723A (en) | 2016-08-03 |
| CN105818723B true CN105818723B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610280553.6A Active CN105818723B (en) | 2016-04-29 | 2016-04-29 | For the multiple freedom parallel mechanism vibration reduction platform of automobile seat |
Country Status (1)
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| CN (1) | CN105818723B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106183922A (en) * | 2016-08-10 | 2016-12-07 | 安徽科技学院 | A kind of device for preventing car sickness based on parallel institution |
| CN108544475B (en) * | 2018-06-05 | 2020-10-27 | 清华大学 | Large-stroke force-control machining robot based on planar two-degree-of-freedom series-parallel mechanical arm |
| CN108789358B (en) * | 2018-06-05 | 2020-10-27 | 清华大学 | Mobile series-parallel processing robot based on three-degree-of-freedom force control parallel module |
| CN110103790A (en) * | 2019-05-20 | 2019-08-09 | 太原科技大学 | A kind of shock absorbing seat suspension in parallel for engineering truck |
| CN113135128B (en) * | 2021-05-14 | 2022-09-23 | 东风汽车集团股份有限公司 | Seat with electromagnetic damping adjusting device |
Citations (6)
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|---|---|---|---|---|
| CN101695908A (en) * | 2009-10-30 | 2010-04-21 | 江苏大学 | Parallel-connection connected vibration reduction seat with multiple degree of freedom for automobile |
| CN201808642U (en) * | 2010-09-02 | 2011-04-27 | 刘金博 | Electromagnetic damping shock absorbing front fork for bicycle |
| CN102765341A (en) * | 2012-07-13 | 2012-11-07 | 常州大学 | Three degree of freedom vibration-reduction vehicle seat suspension mechanism |
| CN102773855A (en) * | 2012-07-04 | 2012-11-14 | 燕山大学 | Four-degree-of-freedom parallel posture alignment vibration-isolating platform |
| CN103791023A (en) * | 2014-02-18 | 2014-05-14 | 哈尔滨工业大学深圳研究生院 | Whole satellite six-dimensional vibration isolation device used for satellite vibration reduction in satellite launching process |
| CN104455152A (en) * | 2014-12-16 | 2015-03-25 | 山东大学 | Frequency-modulated multidimensional vibration damper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7568675B2 (en) * | 2006-06-23 | 2009-08-04 | Caterpillar Inc. | Scissor suspension |
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2016
- 2016-04-29 CN CN201610280553.6A patent/CN105818723B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695908A (en) * | 2009-10-30 | 2010-04-21 | 江苏大学 | Parallel-connection connected vibration reduction seat with multiple degree of freedom for automobile |
| CN201808642U (en) * | 2010-09-02 | 2011-04-27 | 刘金博 | Electromagnetic damping shock absorbing front fork for bicycle |
| CN102773855A (en) * | 2012-07-04 | 2012-11-14 | 燕山大学 | Four-degree-of-freedom parallel posture alignment vibration-isolating platform |
| CN102765341A (en) * | 2012-07-13 | 2012-11-07 | 常州大学 | Three degree of freedom vibration-reduction vehicle seat suspension mechanism |
| CN103791023A (en) * | 2014-02-18 | 2014-05-14 | 哈尔滨工业大学深圳研究生院 | Whole satellite six-dimensional vibration isolation device used for satellite vibration reduction in satellite launching process |
| CN104455152A (en) * | 2014-12-16 | 2015-03-25 | 山东大学 | Frequency-modulated multidimensional vibration damper |
Also Published As
| Publication number | Publication date |
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| CN105818723A (en) | 2016-08-03 |
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