CN203543740U - Mechanical rigidity-variable low-frequency-vibration reduction seat cushion for vehicle - Google Patents
Mechanical rigidity-variable low-frequency-vibration reduction seat cushion for vehicle Download PDFInfo
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- CN203543740U CN203543740U CN201320704427.0U CN201320704427U CN203543740U CN 203543740 U CN203543740 U CN 203543740U CN 201320704427 U CN201320704427 U CN 201320704427U CN 203543740 U CN203543740 U CN 203543740U
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- seat cushion
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- 238000013016 damping Methods 0.000 claims description 24
- 241001343274 Dichrostachys spicata Species 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 238000013461 design Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000002955 isolation Methods 0.000 description 7
- 239000000725 suspension Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000002301 combined effect Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a mechanical rigidity-variable low-frequency-vibration reduction seat cushion for a vehicle. The mechanical rigidity-variable low-frequency-vibration reduction seat cushion comprises a seat cushion upper plate, a seat cushion lower plate, an intersection mechanism, roller pins, roller pin sleeves, guiding sleeves, a main elastic element, auxiliary elastic elements and limiting blocks. Sliding grooves are formed in the seat cushion upper plate and the seat cushion lower plate, the seat cushion upper plate is connected with the seat cushion lower plate through the intersection mechanism, the seat cushion lower plate is fixedly connected with a seat framework, the limiting blocks are fixedly connected into the sliding grooves of the seat cushion upper plate and the seat cushion lower plate, the main elastic element is further connected between the seat cushion upper plate and the seat cushion lower plate, the roller pins are installed in the roller pin sleeves, the guiding sleeves are fixedly connected with the seat cushion lower plate, the auxiliary elastic elements are connected between the roller pin sleeves and the seat cushion lower plate, and a slope is arranged on the seat cushion upper plate. According to the mechanical rigidity-variable low-frequency-vibration reduction seat cushion, vibration, generally existing in existing seats, with the low frequency within 10 Hz is isolated and absorbed, and the riding comfort is improved; the mechanical rigidity-variable low-frequency-vibration reduction seat cushion can be suitable for drivers and passengers with different weights within a certain range without adjustment; the mechanical rigidity-variable low-frequency-vibration reduction seat cushion is achieved through a mechanical structure, performance is reliable, and cost is low.
Description
Technical field
The utility model belongs to auto parts and components scope, particularly a kind of low frequency vibration damping seat cushion.
Background technology
Along with the development of auto trade, comprise that the vehicle NVH performance of ride comfort is more and more subject to customer's attention, Ge great producer and scientific research institutions do a lot of work and study for improving seat ride comfort and comfort level.
On auto body, vibrate vibration source frequency and take automotive suspension natural frequency and tire rolling frequency as main, and the seat of existing ordinary construction, its human body, seat system natural frequency conventionally can not meet vibration isolation principle requirement (lower than
vibration source frequency doubly), only rely on the damping of cushion material own to carry out absorbing.Test also shows, on existing general-utility car seat cushion, vibrates and still with 2Hz left and right suspension natural frequency vibration and low frequency tire, is actuated to master, low frequency vibration damping poor-performing.
Application number is that 200910310001.5 patent has been mentioned a kind of shock absorbing seat that has utilized spring and shock absorber, but mechanism shown in it belongs to linear vibration isolation technique, in order to guarantee seat attitude, system stiffness can not be too low, so can not effectively completely cut off the low-frequency vibration signal existing on vehicle body.
Application number is that 90213138.9 patent has been mentioned a kind of Horizontal damping cushion, and the upper and lower plate displacement of seat cushion is retrained by roller and steel ball in damper spring and guide groove.Structure shown in it is the poor every inhaling effect of main low-frequency vibration signal to take vertical vibration on seat cushion.
Application number is that 201210241940.0 patent is mentioned a kind of seat suspension mechanism that utilizes magnetcisuspension intelligent vibration damper, but its manufacturing cost is too high, is difficult to carry out.Also have in addition some air seats of having applied, ACTIVE CONTROL seat, all have the problem of selling at exorbitant prices.
Application number be 201210118783.4 and the patent of 201220171994.X in mentioned a kind of ultralow frequency vibration isolator, can realize in theory zero hertz of vibration isolation, but the applicable load range of its zero stiffness is too small, while being applied to seat, also cannot adapt to reverse load larger while normally travelling, manual regulation balance position has also increased user's operation easier.
Summary of the invention
For current automotive seat oscillation frequency, take the automotive suspension natural frequency of vertical lower frequency and tire rolling frequency is main present situation, and the utility model, based on nonlinear isolation technology, provides a kind of mechanical type to become rigidity low frequency vibration damping seat cushion; This seat cushion can adapt to the driver and crew of different quality within the specific limits, the larger reverse load of simultaneous adaptation, and vibration isolation absorbing co-operation, effectively weakens the low-frequency vibration on seat cushion.
The technical solution of the utility model is:
Automobile-used mechanical type becomes a rigidity low frequency vibration damping seat cushion, comprises seat cushion upper plate, seat cushion lower plate, cross device, needle roller, needle bush, orienting sleeve, main elastic element, secondary elastic element, limiting stopper, in described seat cushion upper plate and seat cushion lower plate, sliding tray is set, seat cushion upper plate and seat cushion lower plate are connected by cross device, cross device slides in the sliding tray in plate and seat cushion lower plate on cushion, seat cushion lower plate and cushion frame connect firmly, described limiting stopper is fixedly connected in the sliding tray of plate and seat cushion lower plate on cushion, regulate the position of limiting stopper can change the relative displacement size between seat cushion upper plate and seat cushion lower plate, between described seat cushion upper plate and seat cushion lower plate, be also connected with main elastic element, needle roller is arranged in needle bush, needle bush can slide by along continuous straight runs in orienting sleeve, orienting sleeve and seat cushion lower plate connect firmly, between described needle bush and seat cushion lower plate, be connected with secondary elastic element, described seat cushion upper plate is provided with inclined-plane, under normal working, needle roller rolls along the inclined-plane on seat cushion upper plate.
As further improvement of the utility model, described main elastic element and secondary elastic element can be single group Compress Springs, also can be that many group Compress Springs are in parallel, can be also rubber or other packing materials, and its damping force characteristics need to meet the stiffness characteristics of design in forced stroke.
As further improvement of the utility model, described limiting stopper is bolted to connection in the sliding tray of plate and seat cushion lower plate on cushion, the fixed position of limiting stopper is adjustable, regulates the position of limiting stopper can change the relative displacement size between seat cushion upper plate and seat cushion lower plate.
The beneficial effects of the utility model are:
1, a kind of automobile-used mechanical type change rigidity low frequency vibration damping seat cushion of the utility model can carry out every absorbing with interior low-frequency vibration ubiquitous 10Hz on existing seat, improves ride quality;
2, a kind of automobile-used mechanical type change rigidity low frequency vibration damping seat cushion of the utility model can be within the specific limits without regulating the driver and crew that adapt to different weight;
3, a kind of automobile-used mechanical type change rigidity low frequency vibration damping seat cushion of the utility model can keep taking normally attitude under limiting condition;
4, a kind of automobile-used mechanical type change rigidity low frequency vibration damping seat cushion of the utility model is realized by mechanical structure, dependable performance, and cost is relatively cheap.
Accompanying drawing explanation
Fig. 1 is lateral plan of the present utility model;
Fig. 2 be the utility model along A-A to cutaway view;
Fig. 3 is power displacement curve of the present utility model.
In figure: 1, seat cushion upper plate; 2, cross device; 3, seat cushion lower plate; 4, main elastic element; 5, needle roller; 6, limiting stopper; 7, needle bush; 8, orienting sleeve; 9, secondary elastic element.
The specific embodiment
Below in conjunction with specific embodiments and the drawings, the technical solution of the utility model is conducted further description, but the utility model is not limited to the description of embodiment.
As depicted in figs. 1 and 2, a kind of automobile-used mechanical type change rigidity low frequency vibration damping seat cushion of the utility model comprises: seat cushion upper plate 1, cross device 2, seat cushion lower plate 3, main elastic element 4, needle roller 5, limiting stopper 6, needle bush 7, orienting sleeve 8, secondary elastic element 9.
In seat cushion upper plate 1 and seat cushion lower plate 3, sliding tray is set, by cross device 2, is connected, cross device 2 slides in the sliding tray in plate 1 and seat cushion lower plate 3 on cushion, thereby guarantees that seat cushion upper plate 1 and seat cushion lower plate 3 can only carry out vertical relative motion; Seat cushion lower plate 3 connects firmly with cushion frame.
Limiting stopper 6 is by Bolt Connection on cushion in the sliding tray of plate 1 and seat cushion lower plate 3, and the relative displacement that regulates the position of limiting stopper 6 can change between seat cushion upper plate 1 and seat cushion lower plate 3 is big or small, changes the pre compressed magnitude of main spring and the initial position of cushion upper plate.Limiting stopper 6 is made by the larger elastomeric material of rigidity, occurs that the anxious Overweight and Zero Gravity limiting condition causing that accelerates, slows down can play buffer action.There is certain buffer action.
3 of seat cushion upper plate 1 and seat cushion lower plates are also connected with main elastic element 4, main elastic element 4 can be single group or organize Compress Spring parallel connection more, also can be replaced with in normal operation interval and there is the rubber element of similar stiffness characteristics or be aided with other packing materials, the damping force characteristics of these materials itself makes its effect that can play absorbing vibrational energy, but need in forced stroke, meet the stiffness characteristics of design.
3 of needle bush 7 and seat cushion lower plates are connected with secondary elastic element 9, secondary elastic element 9 can be single group or organize Compress Spring parallel connection more, also can be replaced with in normal operation interval and there is the rubber element of similar stiffness characteristics or be aided with other packing materials, the damping force characteristics of these materials itself makes its effect that can play absorbing vibrational energy, but need in forced stroke, meet the stiffness characteristics of design.
Under normal working, needle roller 5 rolls along the inclined-plane designing on seat cushion upper plate 1.
Friction between cross device and position-limited trough, the friction of needle bush and guiding external member, all can produce the effect that absorbing vibrational energy is played in damping.
The groundwork principle of this device is as follows: when seat cushion upper plate 1 has applied the human body load in design allowed band, needle roller 5 enters the work area, inclined-plane of design on seat cushion upper plate 1, now seat cushion vertical stiffness, by only being provided by main elastic element 4, becomes and secondary elastic element 9 combineds action.System stiffness changes with the relative displacement between seat cushion upper and lower plates; When normal working human pressure, main spring pressure, auxiliary spring pressure, road excitation combined action, needle roller rolls along the inclined-plane of seat cushion upper plate, now system equivalent stiffness is minimum, avoid suspension natural frequency, anti-vibration performance promotes, make cushion system have non-linear rigidity, thereby realize, apply human body, seat system natural frequency while effectively reducing work in the little situation of initial displacement after human body load, can meet vibration isolation principle requirement, avoid automotive suspension natural frequency, realize low frequency vibration isolation.The friction force producing during each parts relative motion of seat cushion and the damping of elastic element, can play the effect of absorbing vibrational energy.The non-linear rigidity that cushion system itself provides, the larger displacement of seat cushion upper plate that can avoid larger reverse load to produce.6 position and attitudes that can guarantee seat cushion under limiting condition of limiting stopper, also play certain buffer action.
Normal working needle roller 5 rolls along the given bevel of seat cushion upper plate 3, now two groups of secondary elastic element combineds action provide the contrary power vertically downward of force direction providing with main elastic element 4 to seat cushion upper plate 1, thereby the power, the placement property that make system meet the curve requirement shown in Fig. 3, realize and become rigidity.
A kind of automobile-used mechanical type of the utility model becomes rigidity low frequency vibration damping seat cushion, by three groups of elastic element combineds action, realize the non-linear rigidity of cushion system, cushion system becomes stiffness curve and controls by structure and design parameters, can be without adjusting, meet within the specific limits different quality driver and crew, adapt to larger reverse load, meet little initial displacement and low human body seat system natural frequency simultaneously.
Claims (5)
1. automobile-used mechanical type becomes a rigidity low frequency vibration damping seat cushion, it is characterized in that: comprise seat cushion upper plate (1), seat cushion lower plate (3), cross device (2), needle roller (5), needle bush (7), orienting sleeve (8), main elastic element (4), secondary elastic element (9), limiting stopper (6), in described seat cushion upper plate (1) and seat cushion lower plate (3), sliding tray is set, seat cushion upper plate (1) is connected by cross device (2) with seat cushion lower plate (3), cross device (2) slides in the sliding tray in plate (1) and seat cushion lower plate (3) on cushion, seat cushion lower plate (3) connects firmly with cushion frame, described limiting stopper (6) is fixedly connected in the sliding tray of plate (1) and seat cushion lower plate (3) on cushion, regulate the position of limiting stopper (6) can change the relative displacement size between seat cushion upper plate (1) and seat cushion lower plate (6), between described seat cushion upper plate (1) and seat cushion lower plate (6), be also connected with main elastic element (4), needle roller (5) is arranged in needle bush (7), needle bush (7) can slide by along continuous straight runs in orienting sleeve (8), orienting sleeve (8) connects firmly with seat cushion lower plate (3), between described needle bush (7) and seat cushion lower plate (3), be connected with secondary elastic element (9), described seat cushion upper plate (1) is provided with inclined-plane, needle roller under normal working (5) rolls along the inclined-plane on seat cushion upper plate (1).
2. a kind of automobile-used mechanical type according to claim 1 becomes rigidity low frequency vibration damping seat cushion, it is characterized in that: described main elastic element (4) and secondary elastic element (9) are single group Compress Springs.
3. a kind of automobile-used mechanical type according to claim 1 becomes rigidity low frequency vibration damping seat cushion, it is characterized in that: described main elastic element (4) and secondary elastic element (9) are that many group Compress Springs are in parallel.
4. a kind of automobile-used mechanical type according to claim 1 becomes rigidity low frequency vibration damping seat cushion, it is characterized in that: described main elastic element (4) and secondary elastic element (9) are rubber filling materials, its damping force characteristics need to meet the stiffness characteristics of design in forced stroke.
5. according to a kind of automobile-used mechanical type described in any one in claim 1 to 4, become rigidity low frequency vibration damping seat cushion, it is characterized in that: described limiting stopper (6) is bolted to connection in the sliding tray of plate (1) and seat cushion lower plate (3) on cushion, the fixed position of limiting stopper (6) is adjustable, regulates the position of limiting stopper (6) can change the relative displacement size between seat cushion upper plate (1) and seat cushion lower plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704427.0U CN203543740U (en) | 2013-11-07 | 2013-11-07 | Mechanical rigidity-variable low-frequency-vibration reduction seat cushion for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704427.0U CN203543740U (en) | 2013-11-07 | 2013-11-07 | Mechanical rigidity-variable low-frequency-vibration reduction seat cushion for vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN203543740U true CN203543740U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320704427.0U Expired - Lifetime CN203543740U (en) | 2013-11-07 | 2013-11-07 | Mechanical rigidity-variable low-frequency-vibration reduction seat cushion for vehicle |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106419230A (en) * | 2016-10-24 | 2017-02-22 | 浙江理工大学 | Self-adaptive weight chair with replaceable seat surface |
| CN106427704A (en) * | 2016-10-28 | 2017-02-22 | 无锡市富能金属制品有限公司 | Automotive shock-absorbing seat with steel structure |
| CN108099709A (en) * | 2016-11-25 | 2018-06-01 | 扬州恒新座椅有限公司 | Anti- fulminating vibration damper floor and side wall |
| CN109017724A (en) * | 2017-11-09 | 2018-12-18 | 钱保中 | Nobody automatic brake apparatus |
| WO2018233094A1 (en) * | 2017-06-22 | 2018-12-27 | 江苏大学 | Flotation raft type driving seat structure of crawler-type cereal combine harvester |
| GB2569408A (en) * | 2017-06-22 | 2019-06-19 | Univ Jiangsu | Flotation raft type driving seat structure of crawler-type cereal combine harvester |
| CN111765189A (en) * | 2020-06-03 | 2020-10-13 | 北京科技大学 | Prism-shaped tension integral quasi-zero stiffness vibration isolator |
-
2013
- 2013-11-07 CN CN201320704427.0U patent/CN203543740U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106419230A (en) * | 2016-10-24 | 2017-02-22 | 浙江理工大学 | Self-adaptive weight chair with replaceable seat surface |
| CN106427704A (en) * | 2016-10-28 | 2017-02-22 | 无锡市富能金属制品有限公司 | Automotive shock-absorbing seat with steel structure |
| CN108099709A (en) * | 2016-11-25 | 2018-06-01 | 扬州恒新座椅有限公司 | Anti- fulminating vibration damper floor and side wall |
| WO2018233094A1 (en) * | 2017-06-22 | 2018-12-27 | 江苏大学 | Flotation raft type driving seat structure of crawler-type cereal combine harvester |
| GB2569408A (en) * | 2017-06-22 | 2019-06-19 | Univ Jiangsu | Flotation raft type driving seat structure of crawler-type cereal combine harvester |
| GB2569408B (en) * | 2017-06-22 | 2022-05-11 | Univ Jiangsu | Floating raft cab seat structure of crawler grain combine harvester |
| CN109017724A (en) * | 2017-11-09 | 2018-12-18 | 钱保中 | Nobody automatic brake apparatus |
| CN111765189A (en) * | 2020-06-03 | 2020-10-13 | 北京科技大学 | Prism-shaped tension integral quasi-zero stiffness vibration isolator |
| CN111765189B (en) * | 2020-06-03 | 2021-07-02 | 北京科技大学 | Prism-shaped tension integral quasi-zero stiffness vibration isolator |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
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Granted publication date: 20140416 |