CN105818723A - Multi-degree-of-freedom parallel mechanism vibration damping platform used for motor vehicle seat - Google Patents
Multi-degree-of-freedom parallel mechanism vibration damping platform used for motor vehicle seat Download PDFInfo
- Publication number
- CN105818723A CN105818723A CN201610280553.6A CN201610280553A CN105818723A CN 105818723 A CN105818723 A CN 105818723A CN 201610280553 A CN201610280553 A CN 201610280553A CN 105818723 A CN105818723 A CN 105818723A
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- Prior art keywords
- platform
- fixed platform
- parallel mechanism
- sliding axle
- freedom parallel
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Classifications
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- 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 invention relates to a multi-degree-of-freedom parallel mechanism vibration damping platform used for a motor vehicle seat and belongs to the technical field of mechanical vibration damping devices. The multi-degree-of-freedom parallel mechanism vibration damping platform comprises a fixed platform and a bearing platform fixed above the fixed platform, wherein the motor vehicle seat is connected to the bearing platform; the bearing platform is connected with the fixed platform by virtue of three branches with the same structure; and the three branches are uniformly distributed in an angle of 120 degrees around the vertical central line of the fixed platform and comprise springs, dampers, moving pairs, cylinder pairs and rotating pairs. By adopting the platform, space multi-degree-of-freedom seat vibration damping is realized, the influence of outside vibration on a driver and passengers is reduced, and the comfort and safety are improved.
Description
Technical field
The present invention relates to a kind of multiple freedom parallel mechanism vibration reduction platform for automobile seat, belong to mechanical damping device technical field.
Background technology
Development along with science and technology, the degree of dependence of motor vehicles is increased by the mankind day by day, requiring more and more higher to the comfortableness of motor vehicles, heavy vehicle, passenger vehicle, commercial affairs vehicle etc. travel the vibration problem of generation under road conditions poor condition and have a strong impact on the comfort level of driver and crew, and fatiguability.The damping technology of existing motor vehicles mainly has: use foam-rubber cushion to carry out vibration damping, by installing the seat of vertical direction, spring, antivibrator slow down the vibration of seat, the main vibration damping direction of this technology is vertical direction, and the vibration source that vehicle produces is multidirectional, effectiveness in vibration suppression is relatively poor, and the multi-direction vibration damping implementation of purely mechanic structure is complicated, it is difficult to meet the multi-direction vibration damping realizing in the confined space.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide a kind of multiple freedom parallel mechanism vibration reduction platform for automobile seat, the multivariant seat suspension in space can be realized, alleviate the extraneous vibration impact on driver and crew, improve comfortableness and safety.
Multiple freedom parallel mechanism vibration reduction platform for automobile seat of the present invention, including the carrying platform above fixed platform and fixed platform, automobile seat is connected on carrying platform, pass through three identical branch roads of structure between carrying platform and fixed platform to connect, article three, branch road around the vertical centrage of fixed platform be 120 ° uniform, three branch roads all include spring, antivibrator, moving sets, cylindrical pair and revolute pair；
Fixed platform is provided with support, equipped with moving sets on support, moving sets includes sliding axle and slide block, and sliding axle is fixed on support, slide block slides axially on sliding axle, installing spring and antivibrator on slide block and support between the bottom of sliding axle, slide block is provided with cylindrical pair, and cylindrical pair includes cylinder axis and connecting rod, cylinder axis is arranged on slide block, cylinder axis is vertical with sliding axle, and connecting rod one end slides axially on cylinder axis and rotates along axle, and the connecting rod other end connects carrying platform by revolute pair.
Connected by three branch roads between carrying platform and the fixed platform of fixing automobile seat, article three, motion branch road has identical structure, respectively including a moving sets, a cylindrical pair, a fixed length connecting rod and a revolute pair, mobile vice division chief is equipped with spring and antivibrator；During carrying platform stress, the action secondary by each joint and the effect of spring damping, it is achieved the vibration damping of three translation directions.
Preferably, support is A-frame, three rack legs of A-frame around the vertical centrage of fixed platform be 120 ° uniform.Simple and compact for structure, good stability.
Preferably, antivibrator is passively controlled electromagnetic damper, and electromagnetic damper connects current regulation unit and force transducer, current regulation unit and force transducer and connects controller.The damping value of antivibrator depends on that exciting current, the data of the electromagnetic damper of force transducer detection are delivered to controller, and controller calculates according to data simulation and determines the size of current being input to electromagnetic damper, thus changes damping value, Optimization Vibration effect；And passive electromagnetic damper simple in construction, cost is low, reliability is higher.
Preferably, the angular range between sliding axle axis and fixed platform plane is 30 °-45 °.According to the mechanical analysis of structural parameters, during reduction between moving sets axis and fixed platform, the equilibrium driving force needed for moving sets joint is the least.
The present invention is compared with prior art had the beneficial effect that
The compactest for the multiple freedom parallel mechanism vibration reduction platform overall structure of automobile seat; full symmetric structure has excellent isotropism; three moving direction three-dimensional vibration dampings can be realized; be effectively improved buffer protection to driver and crew when vehicle complex road condition travels, and this platform total quality is light, inertia is little, operable degree is high, dynamic property response is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
In figure: 1, connecting rod；2, revolute pair；3, carrying platform；4, fixed platform；5, support；6, slide block；7, spring；8, antivibrator；9, cylinder axis；10, sliding axle.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the invention are described further:
Embodiment 1
As shown in Figure 1, multiple freedom parallel mechanism vibration reduction platform for automobile seat includes the carrying platform 3 above fixed platform 4 and fixed platform 4, automobile seat is connected on carrying platform 3, pass through three identical branch roads of structure between carrying platform 3 and fixed platform 4 to connect, article three, branch road around the vertical centrage of fixed platform 4 be 120 ° uniform, three branch roads all include spring 7, antivibrator 8, moving sets, cylindrical pair and revolute pair；
Fixed platform 4 is provided with support 5, equipped with moving sets on support 5, moving sets includes sliding axle 10 and slide block 6, sliding axle 10 is fixed on support 5, slide block 6 slides axially on sliding axle 10, spring 7 and antivibrator 8 are installed between the bottom of sliding axle 10 on slide block 6 and support 5, slide block 6 is provided with cylindrical pair, cylindrical pair includes cylinder axis 9 and connecting rod 1, cylinder axis 9 is arranged on slide block 6, cylinder axis 9 is vertical with sliding axle 10, and connecting rod 1 one end slides axially on cylinder axis 9 and rotates along axle, and connecting rod 1 other end connects carrying platform 3 by revolute pair 2.
Support 5 is A-frame, three rack legs of A-frame around the vertical centrage of fixed platform 4 be 120 ° uniform, sliding axle 10 two ends are fixed on three rack legs by fixed block.
Angular range between sliding axle 10 axis and fixed platform 4 plane is 30 °-45 °.
During actual manufacture, designing the physical dimension of vibration reduction platform as the case may be, select spring 7 and antivibrator 8, its every basic parameter affects driving equilibrant during vibration damping.When motor-driven vehicle going is in the situation that road conditions are complicated, by vehicle frame, seat transmission vibration, the quick vibration damping that the carrying platform 3 of connecting chair realizes three translation directions by three motion branch roads responds, and improves the damping property of seat, improve vehicle ride comfort, improve ride quality.
Embodiment 2
On the basis of embodiment 1, antivibrator 8 selects passively controlled electromagnetic damper, and electromagnetic damper connects current regulation unit and force transducer, current regulation unit and force transducer and connects controller.
This control system is optionally turned on and off, and under control system closed mode, electromagnetic damper self has certain damping characteristic, is operated under passive vibration damping state；During control system unlatching work, the data of the electromagnetic damper of force transducer detection are delivered to controller, and controller calculates according to data simulation and determines the size of current being input to electromagnetic damper, thus changes damping value, on the premise of avoiding human body is produced resonant frequency, Optimization Vibration effect.
Claims (4)
1. the multiple freedom parallel mechanism vibration reduction platform for automobile seat, it is characterized in that: include fixed platform (4) and the carrying platform (3) of fixed platform (4) top, carrying platform connects automobile seat on (3), pass through three identical branch roads of structure between carrying platform (3) and fixed platform (4) to connect, article three, branch road around the vertical centrage of fixed platform (4) be 120 ° uniform, three branch roads all include spring (7), antivibrator (8), moving sets, cylindrical pair and revolute pair；
Fixed platform (4) is provided with support (5), equipped with moving sets on support (5), moving sets includes sliding axle (10) and slide block (6), sliding axle (10) is fixed on support (5), slide block (6) slides axially on sliding axle (10), between the bottom of slide block (6) and the upper sliding axle (10) of support (5), spring (7) and antivibrator (8) are installed, slide block (6) is provided with cylindrical pair, cylindrical pair includes cylinder axis (9) and connecting rod (1), cylinder axis (9) is arranged on slide block (6), cylinder axis (9) is vertical with sliding axle (10), connecting rod (1) one end slides axially on cylinder axis (9) and rotates along axle, connecting rod (1) other end connects carrying platform (3) by revolute pair (2).
Multiple freedom parallel mechanism vibration reduction platform for automobile seat the most according to claim 1, it is characterized in that: described support (5) is A-frame, three rack legs of A-frame around the vertical centrage of fixed platform (4) be 120 ° uniform.
Multiple freedom parallel mechanism vibration reduction platform for automobile seat the most according to claim 1, it is characterized in that: described antivibrator (8) is passively controlled electromagnetic damper, electromagnetic damper connects current regulation unit and force transducer, current regulation unit and force transducer and connects controller.
Multiple freedom parallel mechanism vibration reduction platform for automobile seat the most according to claim 1, it is characterised in that: the angular range between described sliding axle (10) axis and fixed platform (4) plane is 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 |
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| Publication Number | Publication Date |
|---|---|
| CN105818723A true CN105818723A (en) | 2016-08-03 |
| CN105818723B CN105818723B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610280553.6A Active CN105818723B (en) | 2016-04-29 | 2016-04-29 | For the multiple freedom parallel mechanism vibration reduction platform of automobile seat |
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Cited By (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 |
| CN108544475A (en) * | 2018-06-05 | 2018-09-18 | 清华大学 | A kind of big stroke force control machining robot based on plane two-freedom series-parallel mechanical arm |
| CN108789358A (en) * | 2018-06-05 | 2018-11-13 | 清华大学 | A kind of mobile series-parallel connection machining robot based on Three Degree Of Freedom power 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 |
| CN113135128A (en) * | 2021-05-14 | 2021-07-20 | 东风汽车集团股份有限公司 | Seat with electromagnetic damping adjusting device |
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| CN201808642U (en) * | 2010-09-02 | 2011-04-27 | 刘金博 | Electromagnetic damping shock absorbing front fork for bicycle |
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008002373A2 (en) * | 2006-06-23 | 2008-01-03 | Caterpillar Inc. | Scissor suspension |
| 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 |
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| CN104455152A (en) * | 2014-12-16 | 2015-03-25 | 山东大学 | Frequency-modulated multidimensional vibration damper |
Cited By (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 |
| CN108544475A (en) * | 2018-06-05 | 2018-09-18 | 清华大学 | A kind of big stroke force control machining robot based on plane two-freedom series-parallel mechanical arm |
| CN108789358A (en) * | 2018-06-05 | 2018-11-13 | 清华大学 | A kind of mobile series-parallel connection machining robot based on Three Degree Of Freedom power 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 |
| CN113135128A (en) * | 2021-05-14 | 2021-07-20 | 东风汽车集团股份有限公司 | Seat with electromagnetic damping adjusting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105818723B (en) | 2018-06-29 |
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