CN209566818U - A kind of low frequency vibration isolation seat - Google Patents
A kind of low frequency vibration isolation seat Download PDFInfo
- Publication number
- CN209566818U CN209566818U CN201822156915.8U CN201822156915U CN209566818U CN 209566818 U CN209566818 U CN 209566818U CN 201822156915 U CN201822156915 U CN 201822156915U CN 209566818 U CN209566818 U CN 209566818U
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- spring
- damper
- vibration isolation
- seat
- low frequency
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Abstract
The utility model discloses a kind of low frequency vibration isolation seats, vibration-isolating platform including seat and below seat, the front and rear sides of the vibration-isolating platform are equipped with connection guide, and the upper end of the connection guide is connected on the vibration-isolating platform, and lower end is connected to spring-damper by conduction mechanism.The utility model low frequency vibration isolation seat, it is simple and compact for structure, low frequency vibration isolation effect is good, meet vehicle the needs of severe road conditions or non-paved road are to seat vibration isolation, while seat is at low cost, reliability and comfort are high, with good application prospect.
Description
Technical field
The utility model belongs to automobile technical field, more specifically to a kind of low frequency vibration isolation seat based on negative stiffness
Chair.
Background technique
Automotive seat is the component of occupant in automobile, driver's carriage, its main function is support occupant, driver
Quality, while alleviating and vibration caused by the impact and decaying of human body is transmitted to by Uneven road.Automotive seat is as decaying vehicle vibration
The last one dynamic link, plays a crucial role the comfort property of vehicle.Especially in engineering machinery, agricultural machinery
And the vehicle in non-paved road traveling, due to the limitation of working environment and the influence of severe road conditions, low-frequency vibration multiplies department
Personal injury is increasingly taken seriously.Data are it is found that in recent years according to the statistics of the World Health Organization, the cervical vertebra that low-frequency vibration easily causes
Disease and disease of digestive system etc. may cause the gastroptosis of people if be chronically exposed in vibration environment, lumbar vertebrae disc disease,
And disease of digestive system etc..Therefore, the low frequency vibration isolation performance for improving seat, to avoiding human viscera organ from being subjected to impact damage
And the generation etc. of driving disease is of great significance.
It is existing it is vehicle seat used respectively have advantage and disadvantage, have the vehicle seat used of anti-vibration performance be broadly divided into three kinds: first
Kind is controllable suspension seat, and such seat is that seat suspension system is designed and is controlled based on control theory, thus is needed
It is equipped with corresponding control unit and controllable suspension system.Although its vibration isolating effect is preferable, its at high cost, poor reliability, electro-hydraulic,
The control of the executing agency of electro-pneumatic Active vibration-reducing system with the change of seat motion state, and then makes corresponding variation.
The features such as fast due to the driving mechanism reaction speed of active vehicle seat suspension system requirements seat suspension system, it just necessarily will lead to master
Structure is complicated for autocontrol system, at high cost, and system capacity consumption is big, poor anti jamming capability, if failed in active control
In the case where, entire active suspension system control is just performed practically no function, and is equivalent to passive suspension, in some instances it may even be possible to lead to effectiveness in vibration suppression also
Not as good as passive suspension, these situations allow for active, the use of Semi-active seat suspension is restricted, and constrain it in vehicle
The popularization of upper application is applied only on a small number of vehicles.
Second is linear vibration isolation seat, generally traditional passive vibration isolation linear suspension seat, and such seat has line
Property suspension system, it is at low cost, be widely used, but be difficult to be supplied to the preferable comfort of passenger under different road conditions,
And its low frequency vibration isolation effect is poor；
The third is non-linear vibration isolation base chair, and such seat vibration isolating effect is preferable, but is limited to chair art researcher's week
Know, only using scissor mechanism as seat catenary motion guiding mechanism, and need additionally according to nonlinear isolation theory to seat every
Shake mechanism carry out it is individually designed, guiding mechanism is mutually indepedent with vibration isolating mechanism, cause suspension system arrangement it is complicated, it is not compact, account for
It is big with space, it is not easy to install, and the precision parts needed are more, at high cost, stability and poor reliability cause to there is no into
Ripe high-performance low frequency vibration isolation seat emerges.
Utility model content
The purpose of this utility model be solve the problems, such as it is of the existing technology, provide it is a kind of simple and compact for structure, it is at low cost,
Reliability and the high low frequency vibration isolation seat of comfort.
To achieve the goals above, the technical solution that the utility model is taken are as follows: provided this low frequency vibration isolation seat,
Vibration-isolating platform including seat and below seat, it is characterised in that: the front and rear sides of the vibration-isolating platform are equipped with connection and lead
Bar, the upper end of the connection guide are connected on the vibration-isolating platform, and lower end is connected to spring-damper by conduction mechanism.
To keep above-mentioned technical proposal more detailed and specific, the utility model also provides optimization technique further below
Scheme, to obtain satisfied practical function:
The lower section of the seat is equipped with the bottom surface being connected on floor, and the conduction mechanism is arranged symmetrically in the bottom surface
Front and rear sides.
The conduction mechanism includes directive wheel and the horizontal guide for being connected to the spring-damper, and the directive wheel passes through
Connecting shaft, which is connected in guide groove, to be moved along the longitudinal direction in the guide groove.
The connection guide is in tilted layout in the seat two sides, and the connection guide includes guide body and is connected to institute
The first linkage section of guide body lower end is stated, first linkage section is connected in the connecting shaft.
The spring-damper includes spring-damper shell and is set in the spring-damper shell along anterior-posterior horizontal
The damping spring of direction arrangement.
Spring-damper bottom plate is equipped in the spring-damper shell, the spring-damper bottom plate is equipped with installation institute
The spring guide of damping spring is stated, the spring guide upper end, which passes through, compresses baffle, and clamp nut is connected to the spring guide
Upper end is fixed and clamped the damping spring.
The side of the guide groove connect the other side with the bottom surface and connects the spring-damper shell.
The left and right sides of the vibration-isolating platform is equipped with symmetrical inclined shore and is connected to the spring damper on the bottom surface.
The upper end of the spring damper is rotatably coupled on the vibration-isolating platform, and lower end is rotatably coupled to institute
It states on bottom surface.
The vertical damping spring arranged vertically is equipped between the vibration-isolating platform and the bottom surface.
The utility model compared with prior art, has the advantage that the utility model low frequency vibration isolation seat, and structure is simple
It is compact, low frequency vibration isolation effect is good, meet vehicle the needs of severe road conditions or non-paved road are to seat vibration isolation, while seat
At low cost, reliability and comfort are high, with good application prospect.
Detailed description of the invention
The label in content and figure expressed by the attached drawing to this specification is briefly described below:
Fig. 1 is the utility model vibration isolation seat structural schematic diagram；
Fig. 2 is the utility model vibrating isolation system mounting structure schematic diagram；
Fig. 3 is the utility model damper and conduction mechanism structural schematic diagram；
Fig. 4 is the utility model conduction mechanism mounting structure schematic diagram.
Fig. 5 is the utility model connection guide structural schematic diagram；
Fig. 6 is the utility model damper structure schematic diagram.
In the figure, it is marked as 1, seat, 2, bottom surface, 3, vertical damping spring, 4, spring damper, 5, connection guide, 51, lead
Bar body, the 52, first linkage section, 53, connecting hole, 54, adjusting nut, 6, spring-damper, 61, spring-damper shell, 62,
Spring-damper bottom plate, 63, damping spring, 64, compression baffle, 65, spring guide, 66, clamp nut, 67, horizontal guide company
Lug, 7, conduction mechanism, 71, directive wheel, 72, connecting shaft, the 73, second linkage section, 74, horizontal guide, 75, guide groove, 8, every
Shake platform.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to specific embodiment of the present utility model further detailed
Thin explanation.
This low frequency vibration isolation seat of the utility model, as shown in Figure 1, 2, 3, including seat 1 and set on seat 1 lower section every
Shake platform 8, and the front and rear sides of vibration-isolating platform 8 are equipped with connection guide 5, and the upper end of connection guide 5 is connected on vibration-isolating platform 8, under
End is connected to spring-damper 6 by conduction mechanism 7.Pass through connection guide 5, conduction mechanism 7, spring damping in the utility model
Device 6 is built into the negative stiffness structure based on rod spring jointly, and tilts at left and right sides of this negative stiffness structure and vibration-isolating platform 8
The positive rigid spring damper 4 of arrangement is in parallel, forms the main vibrating isolation system of positive and negative Stiffness mechanism.When seat is generally born
When load, the excited vibration from vehicle body first passes through the seat 1 in seat and reaches vibration-isolating platform 8, passes through what is connect with vibration-isolating platform 8
Front and back connection guide 5 is transmitted to conduction mechanism 7 generated power is loaded, and vibrational excitation is reached spring damping by conduction mechanism
Device 6, to play the role of vibration isolation.
In the utility model, as shown in Figure 1, the lower section of seat 1 is equipped with the bottom surface 2 being connected on floor, conduction mechanism 7 is right
Claim the front and rear sides for being arranged in bottom surface 2.
In the utility model, as shown in Figure 3,4, conduction mechanism 7 includes directive wheel 71 and the water for being connected to spring-damper 6
Flat guide rod 74, directive wheel 71 are connected in guide groove 75 by connecting shaft 72, and directive wheel 71 can be in guide groove 75 along front and back
To movement.One end of horizontal guide 74 is connected in connecting shaft 72 by the second linkage section 73, and the other end is connected to be set to and compress
On horizontal guide engaging lug 67 on baffle 64.
In the utility model, as shown in Figure 1, 2, 3, connection guide 5 is in tilted layout in 1 two sides of seat, as shown in figure 5, even
Guide rod 5 includes that guide body 51 and the first linkage section 52 for being connected to guide body lower end, the first linkage section 52 are connected to
In spindle 72, wherein 52 linkage section of the first linkage section is the connection claw of two parallel intervals arrangement, directive wheel is located at two connection cards
Between pawl, the connecting hole 53 being connected in connecting shaft is equipped on connection claw.Such structure arrangement is to guarantee stable conduction
Process.
In the utility model, as shown in fig. 6, spring-damper 6 is including spring-damper shell 61 and is set to spring damping
Along the damping spring 63 of anterior-posterior horizontal direction arrangement in device shell 61.Spring-damper bottom plate is equipped in spring-damper shell 61
62, spring-damper bottom plate 62 is equipped with the spring guide 65 of installation damping spring 63, and 65 upper end of spring guide, which passes through, compresses gear
Plate 64, clamp nut 66 are connected to 65 upper end of spring guide with the damping spring 63 that is fixed and clamped.In the utility model, it is preferred that
Two groups of spring guides 65 of spaced and parallel arrangement are equipped in spring-damper shell 61.This implementation i.e. provided by the utility model
In example, spring-damper 6 includes a pair of of damping spring 63, and external spring-damper shell 61, two for installing damping bullet
The spring conductor rod 65 of spring 663 compresses baffle 64 and clamp nut 66.
In the utility model, the vertical damping spring 3 arranged vertically is equipped between vibration-isolating platform 8 and bottom surface 2.Vertical damping
Spring 3 is connected under vibration-isolating platform 8, and on the bottom surface 2 of seat, vertical damping spring 3 retains certain compression surplus, and effect is protected
The spring cushion 4 of shield left and right arrangement and the spring-damper 6 of front and back arrangement, prevent from leading to vibration-isolating platform 8 because of load excessive
Vertical deviation is excessive and vibration isolation is caused to be failed.
The left and right sides of this negative stiffness vehicle isolation seat of the utility model, vibration-isolating platform 8 is equipped with symmetrical inclined shore
The spring damper 6 being connected on bottom surface 2, spring damper 6 are that vibration-isolating platform 8 provides support force, maintain left-right balance, prevent
Since lateral force unevenness causes to tilt.The upper end of spring damper 6 is rotatably coupled on vibration-isolating platform 8, lower end connection
On bottom surface 2.Symmetrical at left and right sides of its structure, left and right provides support as to seat suspension platform by spring cushion 4 respectively,
And the engaging lug that the upper end of spring cushion 4 is equipped on mounting hole and vibration-isolating platform 8 passes through hinged axis connection, spring cushion 4
Lower end is equipped with mounting hole with the engaging lug that is set on seat bottom surface 2 by hinged axis connection, wherein 4 upper end of spring cushion and every
Vibration platform 8 forms rotatable kinematic pair, and lower end and bottom surface 2 form rotatable kinematic pair, to play preferable bumper and absorbing shock
Effect.
The utility model negative stiffness low frequency vibration isolation seat, structure front and rear sides are symmetrical, and front and rear sides are equipped with connection and lead
Bar 5, conduction mechanism 7, spring-damper 6.Wherein conduction mechanism 7 includes directive wheel 71, guide groove 75 and horizontal guide 74.Connection
5 upper end of guide rod and vibration-isolating platform 8 form the kinematic pair rotated towards front and rear sides, 5 lower end of connection guide by hinged axis connection
It is connect with the connecting shaft 72 of directive wheel 71.When wherein arranging, the side of guide groove 75 is connect with bottom surface 2, other side connecting spring
Shell 61 is equipped with the guide rail moved for directive wheel 71 inside guide groove 75.
In the utility model, preferred connection guide 5 is equipped with adjusting nut 54, can be adjusted and be controlled by adjusting nut 54
The length of connection guide 5 processed, and then seat front and rear angles are controlled to adjust, meet comfort requirement.
The utility model vibration isolation seat is that vibration-proof structure is designed based on negative stiffness structure, and the vertical load of experimental design is p1=
73kg, to keep vibration isolating effect best, being equipped with maximum vertical load is pmax, if the rigidity of left and right damper is C1, front and back spring
The rigidity of damping is C2, and the quiet degree of disturbing when vertical damper and vibration reduction platform just contact is fk.
As caused by many reasons since automotive seat load is uncertain, such as occupant weight is different, various environment because
Element and vibration isolation failure.So when vertical load excessive, it is vertical to subtract bring disturbing factor, the vibration isolation of seat can all be imitated
Fruit generates negative influence, therefore certainly will install vertical spring damping in seat vibration isolation table lower part and keep certain quiet degree of disturbing fk
And vertical load is P2.The then peak load PM=Pmax+P2 that seat can bear at this time.It is able to satisfy so under normal circumstances
Seat load and seat is made to keep best vibration isolation state, and vertical damper can play the role of limit simultaneously, make vibration isolation seat
It is unlikely to be deformed because load is excessive, or vibration device operational failure, the intrinsic frequency of seat system is calculated using linear method
Rate.
The utility model is in parallel with the positive rigid spring damper of inclination arrangement based on rod spring negative stiffness structure
Vibration isolating mechanism.The vibrating isolation system of Stiffness positive and negative for the utility model is subtracted in equilibrium position by the spring being in tilted layout
Shake device 4 provides the support stiffness that positive rigidity is k1, and negative rigidity mechanism does not work at this time.System has high Static stiffness characteristic.In
When the micro breadth oscillation of equilbrium position, due to positive and negative Stiffness, the rigidity of vibrating isolation system is k=k1+k2, that is, illustrates the utility model
Vibrating isolation system have low dynamic stiffness.Therefore, in equilibrium position, design (calculated) load p1 or so or in maximum load pmax, by
There is the low dynamic stiffness characteristic of high Static stiffness in vibrating isolation system, guarantee system will not generate excessive Static Correction.It is attached in equilbrium position
During nearly micro breadth oscillation, low dynamic stiffness can guarantee isolation low-frequency excitation, and the vertical deviation vibrated is within the scope of natural bow fk.
Ride comfort requires well intrinsic frequency variation small.First is that minimum is answered in the variation of frequency within the scope of entire load variations；Two
Vertical damper the forward and backward frequency discontinuity that works cannot be too big.Third is that seat can keep good in entire load range
Good vibration isolating effect, this enables seat to have preferable vibration isolation stability.Fourth is that the vibration insulating system designed using negative stiffness structure,
It is fast with the vibration isolation corresponding time, the characteristics of stable structure.
Working principle of the utility model is: the excited vibration from vehicle body first passes through when seat is by general load
The seat 1 of seat reaches vibration-isolating platform 8, is passed by the front and back connection guide 5 connecting with vibration-isolating platform 8 generated power is loaded
To the directive wheel 71 of conduction mechanism 7, while by connecting shaft 72 and horizontal guide connected to it 74 by directive wheel 71
Vibrational excitation reach spring-damper 6.By connection guide 5, conduction mechanism 7, spring-damper 6 constructs main vibration isolation system jointly
System.To prevent seat from tilting, and the power of balance vibration isolation table two sides is that seat provides positive rigidity and supports, in vibration-isolating platform 8 or so
Spring cushion 4 is installed in two sides, and certain vibration isolating effect can be played to vibration-isolating platform 8.It is equipped in vibration isolation table lower end vertical
To damper 3, i.e., secondary vibrating isolation system, and certain quiet degree of disturbing fk is kept, when load excessive, vertical damper can be to vibration isolation table
Support is provided, so that directive wheel 71 is maintained at best vibration isolation position, protects main vibration insulating system, vibration damping caused by avoiding because of load excessive
The possibility of thrashing.
The utility model experiment load is 73kg, and maximum load is that pmax is greater than experiment load 73kg, when load is not more than
When pmax, the main vibrating isolation system of seat can play best vibration isolating effect.When being centainly loaded to seat 1, vibration isolation is reached by seat 1 and is put down
Platform 8, then directive wheel 71 is reached through connection guide 5 by vibration-isolating platform 8, so that vertical load force is made to be converted into horizontal force, it is final to hang down
Spring-damper 6 is reached to load force.And in order to maintain vibration-isolating platform left-right balance and filter certain vibration, and it is flat in vibration isolation
8 two sides of platform add spring cushion 4.When vehicle is vibrated excitation, pass through positive and negative Stiffness vibration insulating system, seat 1
Stable catenary motion occurs, 5 lower end of connection guide cooperates with the damping action of spring-damper 6 with 71 horizontal hunting of directive wheel,
The effective filter vibration of spring-damper energy of front and back improves the ride comfort of vehicle so that vibration be isolated.
When seat load excessive, when being greater than design maximum load pmax, there is installation vertical damper 2 to pacify above bottom surface 2
Tankage is equipped with vertical damper 2 below vibration-isolating platform 8 and keeps certain quiet degree of disturbing fk, when load excessive, seat vibration isolation
Platform 8 can be to bottom offset certain distance, and promoting vertical damper 2 is that seat suspension platform 8 provides positive rigidity support force, can not only
Play the role of limit, and vibrating isolation system can be protected, in case vibration isolation is failed.When vehicle is vibrated excitation, Vertical Vibration Reduction
Device 2 provides positive rigidity, cooperates with positive and negative stiffness structure vibration insulating system, and stable catenary motion occurs for chair surface 1, and front and back connection is led
Bar lower end maintains two lateral balance of seat, the damping of spring-damper is cooperateed with to make with 6 horizontal hunting of leading block, left and right damper
With the effective filter vibration of spring-damper energy of front and back, so that vibration, which is isolated, also can improve the driving of vehicle to low-frequency vibration
Comfort.Therefore seat can keep best vibration isolation state under different loads, and vibration isolating effect is stablized, and have entirety can
By property and universality.
The utility model has the beneficial effects that (1) structure of the invention is compact, vibration isolating effect is stablized, not only to high-frequency vibration energy
Good vibration isolating effect is played, and more preferably to low-frequency vibration vibration isolating effect, and seat catenary motion is stablized, and can effectively improve and drive
Multiply comfort.(2) present invention does not depend on excessive close components, and performance is stablized, and manufacturing cost is low, meets under multiple road conditions to vehicle
The demand of vibration isolation has the characteristics that easily to promote.(3) present invention design meets under different loads the needs of to vibration isolation, keeps not
Good vibration isolating effect can be kept under same load, while also having overload protection arrangement, prevents vibration isolation from failing.(4) present invention is main
Vibrating isolation system is designed based on negative rigidity principle, not only has the high quiet low dynamic characteristic of positive and negative Stiffness mechanism, and structurally reasonable is had
Effect has the vibration isolation corresponding time fast, is especially that seat of the present invention has the work of certain energy absorption by hard hit to vehicle
With, and have certain consumption feature to head " getting rid of whip " movement.
The utility model low frequency vibration isolation seat, it is simple and compact for structure, low frequency vibration isolation effect is good, meet vehicle in severe road conditions
Or demand of the non-paved road to seat vibration isolation, while seat is at low cost, reliability and comfort are high, has preferable application
Prospect.
The utility model is exemplarily described above in conjunction with attached drawing, but the utility model be not limited to it is above-mentioned
Mode, as long as the improvement or directly application of the various unsubstantialities carried out using the method concept and technical solution of the utility model
In other occasions, all fall in the protection scope of the utility model.
Claims (10)
1. a kind of low frequency vibration isolation seat, the vibration-isolating platform including seat and below seat, it is characterised in that: the vibration isolation is flat
The front and rear sides of platform are equipped with connection guide, and the upper end of the connection guide is connected on the vibration-isolating platform, and lower end passes through conduction
Mechanism is connected to spring-damper.
2. low frequency vibration isolation seat described in accordance with the claim 1, it is characterised in that: the lower section of the seat is equipped with and is connected to floor
On bottom surface, the conduction mechanism is arranged symmetrically in the front and rear sides of the bottom surface.
3. low frequency vibration isolation seat according to claim 2, it is characterised in that: the conduction mechanism includes directive wheel and connection
To the horizontal guide of the spring-damper, the directive wheel is connected in guide groove by connecting shaft can be in the guide groove
It moves along the longitudinal direction.
4. low frequency vibration isolation seat described in accordance with the claim 3, it is characterised in that: the connection guide is in tilted layout in the chair
Face two sides, the connection guide include guide body and the first linkage section for being connected to the guide body lower end, and described first
Linkage section is connected in the connecting shaft.
5. low frequency vibration isolation seat according to claim 4, it is characterised in that: the spring-damper includes spring-damper
Shell and the damping spring arranged in the spring-damper shell along anterior-posterior horizontal direction.
6. low frequency vibration isolation seat according to claim 5, it is characterised in that: be equipped with spring in the spring-damper shell
Damper bottom plate, the spring-damper bottom plate are equipped with the spring guide for installing the damping spring, on the spring guide
End is connected to the spring guide upper end and is fixed and clamped the damping spring across baffle, clamp nut is compressed.
7. low frequency vibration isolation seat according to claim 6, it is characterised in that: the side of the guide groove and the bottom surface connect
It connects the other side and connects the spring-damper shell.
8. according to the described in any item low frequency vibration isolation seats of claim 2 to 7, it is characterised in that: the left and right of the vibration-isolating platform
Two sides are equipped with symmetrical inclined shore and are connected to the spring damper on the bottom surface.
9. low frequency vibration isolation seat according to claim 8, it is characterised in that: the upper end of the spring damper is rotatable
It is connected on the vibration-isolating platform, lower end is rotatably coupled on the bottom surface.
10. low frequency vibration isolation seat described in accordance with the claim 1, it is characterised in that: between the vibration-isolating platform and the bottom surface
Equipped with the vertical damping spring arranged vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822156915.8U CN209566818U (en) | 2018-12-21 | 2018-12-21 | A kind of low frequency vibration isolation seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822156915.8U CN209566818U (en) | 2018-12-21 | 2018-12-21 | A kind of low frequency vibration isolation seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209566818U true CN209566818U (en) | 2019-11-01 |
Family
ID=68330561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822156915.8U Expired - Fee Related CN209566818U (en) | 2018-12-21 | 2018-12-21 | A kind of low frequency vibration isolation seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209566818U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435800A (en) * | 2018-12-21 | 2019-03-08 | 安徽工程大学 | Low frequency vibration isolation seat |
| 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 |
| CN111605455A (en) * | 2020-06-01 | 2020-09-01 | 长沙理工大学 | Self-balancing active vibration reduction system |
| CN109435800B (en) * | 2018-12-21 | 2024-06-21 | 安徽工程大学 | Low-frequency vibration isolation seat |
-
2018
- 2018-12-21 CN CN201822156915.8U patent/CN209566818U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435800A (en) * | 2018-12-21 | 2019-03-08 | 安徽工程大学 | Low frequency vibration isolation seat |
| CN109435800B (en) * | 2018-12-21 | 2024-06-21 | 安徽工程大学 | Low-frequency vibration isolation seat |
| 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 |
| CN111605455A (en) * | 2020-06-01 | 2020-09-01 | 长沙理工大学 | Self-balancing active vibration reduction system |
| CN111605455B (en) * | 2020-06-01 | 2021-06-29 | 长沙理工大学 | Self-balancing active vibration reduction system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191101 Termination date: 20201221 |