CN203876558U - Vibration reducing device and suspension - Google Patents
Vibration reducing device and suspension Download PDFInfo
- Publication number
- CN203876558U CN203876558U CN201420121478.5U CN201420121478U CN203876558U CN 203876558 U CN203876558 U CN 203876558U CN 201420121478 U CN201420121478 U CN 201420121478U CN 203876558 U CN203876558 U CN 203876558U
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- damping element
- vibration
- vibrating grid
- auxiliary
- shock attenuation
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Abstract
The utility model discloses a vibration reducing device and suspension. In the vibration reducing device, an auxiliary vibration reducing element is pre-arranged in an initial position separated from a vibration frame or shifted from a vibration area; when the vibration frame needs the auxiliary vibration reducing element, the auxiliary vibration reducing element is adjusted to be in a working position connected with the vibration frame or shifted to the vibration area, and when the vibration frame dose not need the auxiliary vibration reducing element, the auxiliary vibration reducing element is shifted back to the initial position, so that the auxiliary vibration reducing element is correspondingly adjusted to actively enter the working position according to the vibration reducing requirement of the vibration frame; and when the vibration frame has the vibration reducing requirement, the auxiliary vibration reducing element can be actively adjusted to adapt to the vibration reducing requirement of the vibration frame, so that the rigidity of the vibration reducing element is quickly adjusted to once adapt to the vibration reducing requirement of the vibration frame, and the quick and active vibration reducing effect is realized.
Description
Technical field
The utility model relates to a kind of shock attenuation unit and suspends.
Background technology
Dynamic assembly suspension be connect between dynamic assembly and vehicle frame compared with flexible member, its effect is that the vibratory force transmission between dynamic assembly and vehicle frame is decayed, thereby dynamic assembly suspension should possess following characteristics: have enough quiet rigidity, play the effect of supporting motive force assembly; There is rational dynamic stiffness, can effectively isolate the vibration that Engine Excitation causes vehicle frame or vehicle body, reduce car internal vibration noise, can effectively isolate the vibration that causes dynamic assembly due to the input of road roughness.As can be seen here, under the operating mode such as at the uniform velocity travel, requiring suspends has little rigidity, little damping, to reduce car internal vibration noise; In driving engine start and stop, acceleration or deceleration, the situation such as road surface is rough and uneven in surface, require to suspend to there is large rigidity, to alleviate the impulsive force on driving engine and road surface.Suspension design directly has influence on traveling comfort and the structural reliability that passenger takes.Existing commercially available passenger vehicle dynamic assembly suspension adopts rubber mounting more, but the constructional feature due to rubber, it is large that rigidity and damping design simultaneously, design is little simultaneously, the suspend requirement of rigidity of main operating mode such as only meet at the uniform velocity, cause at driving engine start and stop, acceleration-deceleration, road surface is rough and uneven in surface etc., and that operating mode alleviates impact effect is very poor.
Chinese patent literature 201961398U discloses a kind of front suspension device with variable rigidity, this suspending apparatus comprises the vibrating grid being hinged between fixed mount and operator's compartment, between the front side of vibrating grid and fixed mount, be hinged with damping shock absorber, and in the bottom of fixed mount, be installed with top and be contained in the main spring of vibrating grid downside, top at fixed mount is installed with respectively in the front and back of vibrating grid hinge side the auxiliary spring being disposed under vibrating grid, in use, along with leaning forward or hypsokinesis of operator's compartment, vibrating grid can lean forward accordingly or hypsokinesis under the drive of operator's compartment, and after vibrating grid is with the hinge perk on fixed mount, vibrating grid can be pressed on top in two auxiliary springs one, thereby make two auxiliary springs can be together with main spring when operator's compartment moves the suffered impulsive force of buffering vibration frame, but auxiliary spring and vibrating grid passive exposure, can not initiatively vibrate position with vibrating grid clutch or turnover, cannot play the effect of active adjustment suspending apparatus rigidity, and its work is only relevant with the amplitude of vibration, cannot be applied to the little and vibration damping occasion that frequency is high of amplitude.
Utility model content
The purpose of this utility model is to provide a kind of shock attenuation unit of the rigidity that can active adjustment suspends, and a kind of suspending of this shock attenuation unit of using is provided.
In order to realize above object, in the utility model, the technical scheme of shock attenuation unit is as follows:
Shock attenuation unit, comprise for bridge joint the main damping element between fixed mount and vibrating grid, also comprise and the parallel auxiliary damping element arranging of main damping element, on auxiliary damping element, be connected with for driving the driver train of auxiliary damping element motion, auxiliary damping element on the stroke of driver train, have for depart from vibrating grid or shift out the initial bit of the vibration position of vibrating grid, for engage or move into the working position of the vibration position of vibrating grid with vibrating grid.
On driver train, be connected with the sensor of condition value and the controller of upper electrical connection thereof that for gathering impact, by vibration damping thing, are vibrated.
Driver train comprises the clutch release slave cylinder switching between working position and initial bit for the auxiliary damping element lifting moving of push-and-pull.
Clutch release slave cylinder is double-acting cylinder, is equipped with for controlling the control cock of push pull maneuver on clutch release slave cylinder.
The technical scheme suspending in the utility model is as follows:
Suspend, involving vibrations frame, fixed mount and the shock attenuation unit assembling between the two, shock attenuation unit comprises the main damping element of bridge joint between vibrating grid and fixed mount, shock attenuation unit also comprises and the parallel auxiliary damping element arranging of main damping element, on auxiliary damping element, be connected with for driving the driver train of auxiliary damping element motion, auxiliary damping element on the stroke of driver train, have for depart from vibrating grid or shift out the initial bit of the vibration position of vibrating grid, for engage or move into the working position of the vibration position of vibrating grid with vibrating grid.
On driver train, be connected with the sensor of condition value and the controller of upper electrical connection thereof that for gathering impact, by vibration damping thing, are vibrated.
Driver train comprises the clutch release slave cylinder switching between working position and initial bit for the auxiliary damping element lifting moving of push-and-pull.
Clutch release slave cylinder is double-acting cylinder, is equipped with for controlling the control cock of push pull maneuver on clutch release slave cylinder.
In the utility model, auxiliary damping element is preset in the initial bit that departs from or shift out vibration position with vibrating grid, when vibrating grid needs, (judge when main damping element can not meet the vibration damping demand of vibrating grid), auxiliary damping element is adjusted to the working position that engages or move into vibration position with vibrating grid; And when vibrating grid does not need, (at the main damping element of judgement, can meet after the vibration damping demand of vibrating grid) subsequently, auxiliary damping element can be moved back to initial bit again, auxiliary like this damping element is by according to the vibration damping demand of vibrating grid, make adjustment accordingly and initiatively enter working position, make when vibrating grid has vibration damping demand, can adjustment initiatively assist damping element to adapt to the vibration damping demand of vibrating grid, thereby make quick adjusting damping element rigidity, the vibration damping demand of the adaptation vibrating grid settling at one go, has realized effectiveness in vibration suppression quickly.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of suspending in the utility model;
Fig. 2 is the principle of work schematic diagram suspending in Fig. 1;
Fig. 3 is the control policy diagram of circuit of the rigidity control method that suspends in Fig. 1.
The specific embodiment
The embodiment suspending in the utility model: as shown in Figure 1 to Figure 3, this suspends is a kind of stiffness variable rubber mounting, it comprise between the upper and lower every vibrating grid 1 and fixed mount 7, between vibrating grid 1 and fixed mount 7, be equipped with shock attenuation unit, this shock attenuation unit is mainly by main damping element, auxiliary damping element 2, driver train, controller and sensor 10 form, wherein main damping element and the parallel setting of auxiliary damping element 2, main damping element consists of connection bracket and support rubber cushion 9, the top bolt that supports rubber cushion 9 is connected on vibrating grid 1, bottom bolts is connected in connection bracket 8, and the bottom welding of connection bracket 8 is on fixed mount 7, top bolt is connected to and supports on rubber cushion 9, auxiliary damping element 2 is rubber pad, driver train comprises the cylinder of double-acting type and the control cock of upper assembling thereof, control cock is two-position-five-way solenoid valve, the control part of control cock is connected electrically on controller, and two controls mouthful of control cock are communicated with on the upper gas port 41 and lower gas port 42 of cylinder, vent is communicated with on gas feeder 12 by tracheae 13, the cylinder body of cylinder is fixed on fixed mount 7 by four bolt of rear end plates, and the top of piston rod 3 is connected in damping element 2 bottoms by tightening screw.
Sensor 10 is for being fixed on the three-dimensional acceleration pick-up on fixed mount 7, the mouth sampling of sensor 10 is connected on controller 11, and be provided with in controller 11, default threshold and condition value comparison is judged to whether vibrating grid 1 has the determination module of vibration damping demand.Sensor 10 collects the condition value that fixed mount 7 acceleration signals control as PID and passes to controller 11, controller 11 transmits control signal to control cock, control the vent duration of ventilation of control cock, and then by control cock, control the inlet and outlet amount that enters cylinder, thereby the flexible stroke of the piston rod of control cylinder 3, control the amount of compression of auxiliary damping element 2, the final rigidity suspending that promotes.
In the present embodiment, sensor 10, as the whole data acquisition module suspending, under the various operating modes of vehicle, gathers the three-way vibration acceleration signal of vehicle frame.In controller 11, determination module is divided into first, second and third determination module, in addition be also provided with first and second computing module, wherein whether the first determination module exceeds for determine sensor 10 accekeration that collects the threshold setting, then enter the first computing module, if result of determination is no, controller 11 is failure to actuate, and auxiliary damping element 2 maintains original position, if result of determination is yes, enter the second determination module, judgement is greater than or is less than threshold, if result of determination for being less than, assists damping element 2 to be failure to actuate in initial bit, result of determination is for being greater than, calculate the difference of acceleration peak value and threshold as equivalent accekeration, and calculate the suction quantity of cylinder 6, using cylinder 6 suction quantity as PID controlling quantity, calculate piston rod 3 displacements, thereby control auxiliary damping element 2 hoisting positions and amount of compression thereof, then enter again the 3rd determination module, whether the acceleration/accel that determine sensor 10 collects instantaneous value in certain monitoring periods of setting all belongs to threshold, if result of determination is yes, enter the second computing module, calculate auxiliary damping element 2 and drop to the required free air capacity of desired location as PID controlling quantity, by controller 11, sent lower gas port 42 opening times of control command control cylinder 6, thereby make auxiliary damping element 2 be down to desired location, if result of determination is no, auxiliary damping element 2 maintains original position.In controller 11, execution module, according to determination module institute result of determination, is usingd inlet and outlet amount as controlling quantity, by the upper gas port 41 of control cock 5 control cylinders 6 and the switching of lower gas port 42.The respond module of controller 11 is by the inlet and outlet amount of control cylinder 6, thereby the displacement of control cylinder 6 piston rods 3 determines rising and the falling of auxiliary damping element 2, and final realization changes the rigidity suspending.
Sensor 10 is obtaining the three-dimensional acceleration signal of fixed mount 7, and by collection to acceleration signal while passing to controller 11, by the determination module of controller 11, judge whether accekeration exceeds threshold (as shown in Figure 3): if not, be judged to be the vibration damping demand that main damping element can meet vibrating grid 1, controller 11 is failure to actuate, and auxiliary damping element 2 maintains initial bit, if so, also need to judge that being greater than or being less than controller 11 sets threshold: if be less than, still judge that main damping element can meet the vibration damping demand of vibrating grid 1, auxiliary damping element 2 maintains initial bit, if be greater than, judge that main damping element can not meet the vibration damping demand of vibrating grid 1, calculate the difference of acceleration peak value and threshold as equivalent accekeration, calculate cylinder 6 suction quantity, using equivalent air inlet value as PID input, calculate piston rod 3 mobile displacements of cylinder 6, the air inlet weather gauge that can provide according to the admission port area of electromagnetic valve and air feed equipment is calculated intake period, and then send control command to control cock 5 by controller 11, thereby control intake period by control cock 5, final auxiliary damping element 2 hoisting positions and the amount of compression controlled, make auxiliary damping element 2 in working position.At auxiliary damping element 2 after working position, controller 11 judges whether at monitoring periods inner sensor 10, collect accekeration exceeds threshold: if not, judge that main damping element can meet the vibration damping demand of vibrating grid 1, then calculate the free air capacity that auxiliary damping element 2 drops to original start position cylinder 6, using free air capacity as PID input, controller 11 sends control command to control cock 5, the Exhaust Open of control cock 5, auxiliary damping element 2 is retracted, treat that auxiliary damping element 2 is back to the initial bit of setting, the exhaust close of control cock 5; If, judge that main damping element still can not meet the vibration damping demand of vibrating grid 1, judge that again accekeration is greater than or is less than threshold: if be less than, judge that main damping element can meet the vibration damping demand of vibrating grid 1, calculate the free air capacity that auxiliary damping element 2 drops to original start position cylinder 6, using free air capacity as PID input, controller 11 sends control command to control cock 5, control cock 5 Exhaust Opens, auxiliary damping element 2 rollbacks, treat that auxiliary damping element 2 is back to the initial position of setting, the exhaust close of control cock 5; If be greater than, judge that main damping element still can not meet the vibration damping demand of vibrating grid 1, auxiliary damping element 2 maintains invariant position.
While being suspended at work in the present embodiment, implement in accordance with the following steps:
Step 1, auxiliary damping element 2 present positions on default fixed mount 7, initial bit outside the vibration position of auxiliary damping element 2 in vibrating grid 1, it is by assisting the setpoint distance between damping element 2 and vibrating grid 1 to determine that the initial bit of auxiliary damping element 2 is set, and at controller 11, set the accekeration threshold of conventional operating mode lower sensor 10, the monitoring periods of setting controller 11 is greater than auxiliary damping element 2 and is risen to and set end position required time by initial position, and the air inlet air pressure of cylinder 6 equals exhaust air pressure;
Step 2, when vehicle is during in driving engine start and stop, acceleration-deceleration, the limiting condition such as road surface is rough and uneven in surface, main damping element bears larger impulsive force, the amount of compression that supports rubber cushion 9 in main damping element increases, but now need shock attenuation unit to there is larger support stiffness and dynamic stiffness, controller 11 judges that main damping element can not meet the vibration damping demand of vibrating grid 1, driver train will be assisted damping element to rise and be moved into working position, by main damping element, together with auxiliary damping element, vibrating grid be carried out to vibration damping;
Step 3, when vehicle is in static or at the uniform velocity etc. after steady operating mode, controller judges that main damping element can meet the vibration damping demand of vibrating grid 1, now need shock attenuation unit to there is certain quiet rigidity or less dynamic stiffness, support rubber cushion 9 and can meet support and vibration damping requirement, driver train can be with dynamic auxiliary damping element to decline and be moved back into initial bit.
In the above-described embodiments, controller is to using condition value that acceleration value that sensor detects vibrated by vibration damping thing as impact, and in other embodiments, when sensor is other sensors, this condition value can be also displacement numerical value, speed numerical value etc.
In the above-described embodiments, lifting moving under the push-and-pull of auxiliary damping element cylinder in driver train, thereby realize the switching between working position and initial bit, in other embodiments, this cylinder also can use hydraulic actuating cylinder, electric pushrod to replace, and auxiliary damping element also can realize the switching between working position and initial bit by forms such as translation, upset, rotations, now driver train can be also the mechanisms such as motor, motor, gear drive.
In the above-described embodiments, auxiliary damping element only has one, and in other embodiments, auxiliary damping element also can be for more than two, and auxiliary damping element is also not limited to rubber pad, can be also common spring, gas spring etc.
In the above-described embodiments, sensor is three-dimensional acceleration pick-up, and in other embodiments, this sensor can be also other acceleration pick-ups or displacement pickup etc.
In the above-described embodiments, shock attenuation unit is controlled by controller and sensor interlock, and in other embodiments, shock attenuation unit also can be by manually controlling, such as driver is when feeling that vibration is violent, by manual operation respective switch, realize the adjustment to shock attenuation unit.
The embodiment of shock attenuation unit in the utility model: in the present embodiment, the structure of shock attenuation unit is identical with the structure of shock attenuation unit in above-described embodiment, just this shock attenuation unit not only can be used on automobile suspended, and can be applicable to seat etc.
Claims (8)
1. shock attenuation unit, comprise for bridge joint the main damping element between fixed mount and vibrating grid, it is characterized in that, also comprise and the parallel auxiliary damping element arranging of main damping element, on auxiliary damping element, be connected with for driving the driver train of auxiliary damping element motion, auxiliary damping element on the stroke of driver train, have for depart from vibrating grid or shift out the initial bit of the vibration position of vibrating grid, for engage or move into the working position of the vibration position of vibrating grid with vibrating grid.
2. shock attenuation unit according to claim 1, is characterized in that, is connected with the sensor of condition value and the controller of upper electrical connection thereof that for gathering impact, by vibration damping thing, are vibrated on driver train.
3. shock attenuation unit according to claim 1 and 2, is characterized in that, driver train comprises the clutch release slave cylinder switching between working position and initial bit for the auxiliary damping element lifting moving of push-and-pull.
4. shock attenuation unit according to claim 3, is characterized in that, clutch release slave cylinder is double-acting cylinder, is equipped with for controlling the control cock of push pull maneuver on clutch release slave cylinder.
5. suspend, involving vibrations frame, fixed mount and the between the two shock attenuation unit of assembling, shock attenuation unit comprises the main damping element of bridge joint between vibrating grid and fixed mount, it is characterized in that, shock attenuation unit also comprises and the parallel auxiliary damping element arranging of main damping element, on auxiliary damping element, be connected with for driving the driver train of auxiliary damping element motion, auxiliary damping element has for departing from vibrating grid or shifting out the initial bit of the vibration position of vibrating grid on the stroke of driver train, for engage or move into the working position of the vibration position of vibrating grid with vibrating grid.
6. according to claim 5 suspending, is characterized in that, is connected with the sensor of condition value and the controller of upper electrical connection thereof that for gathering impact, by vibration damping thing, are vibrated on driver train.
7. according to suspending described in claim 5 or 6, it is characterized in that, driver train comprises the clutch release slave cylinder switching between working position and initial bit for the auxiliary damping element lifting moving of push-and-pull.
8. according to claim 7 suspending, is characterized in that, clutch release slave cylinder is double-acting cylinder, is equipped with for controlling the control cock of push pull maneuver on clutch release slave cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121478.5U CN203876558U (en) | 2014-03-18 | 2014-03-18 | Vibration reducing device and suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121478.5U CN203876558U (en) | 2014-03-18 | 2014-03-18 | Vibration reducing device and suspension |
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| Publication Number | Publication Date |
|---|---|
| CN203876558U true CN203876558U (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420121478.5U Expired - Fee Related CN203876558U (en) | 2014-03-18 | 2014-03-18 | Vibration reducing device and suspension |
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| CN (1) | CN203876558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909817A (en) * | 2014-03-18 | 2014-07-09 | 郑州宇通客车股份有限公司 | Shock absorbing device, suspension and suspension stiffness control method |
-
2014
- 2014-03-18 CN CN201420121478.5U patent/CN203876558U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909817A (en) * | 2014-03-18 | 2014-07-09 | 郑州宇通客车股份有限公司 | Shock absorbing device, suspension and suspension stiffness control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20190318 |
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| CF01 | Termination of patent right due to non-payment of annual fee |