CN201779206U - Electromagnetic shock absorber capable of changing force - Google Patents
Electromagnetic shock absorber capable of changing force Download PDFInfo
- Publication number
- CN201779206U CN201779206U CN2010202552526U CN201020255252U CN201779206U CN 201779206 U CN201779206 U CN 201779206U CN 2010202552526 U CN2010202552526 U CN 2010202552526U CN 201020255252 U CN201020255252 U CN 201020255252U CN 201779206 U CN201779206 U CN 201779206U
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- Prior art keywords
- shock absorber
- piston
- piston rod
- electromagnetic
- damping
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- Expired - Fee Related
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- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
An electromagnetic shock absorber capable of changing force comprises an oil storage cylinder, a working cylinder, an oil seal cover, a piston rod connected with an upper connecting ring, a piston, a guiding seat and an oil storage cylinder base connected with a lower connecting ring. The electromagnetic shock absorber capable of changing force is characterized in that the piston is provided with electromagnetic coils and a damping passage, a lead used for connecting the electromagnetic coils is installed in the piston rod in a penetrating mode, the damping passage is communicated with spaces on the peripheries of the electromagnetic coils, a valve spool with a running hole is assembled on a valve seat, a spring is assembled between the valve spool and the valve seat; and a flowing passage communicated with the running hole of the valve spool is arranged on the piston rod. The electromagnetic shock absorber capable of changing force has the advantages of being rapid in response, strong in stability, wide in adjustable range of damping force and continuous in adjustability of the damping force. Changing time is millisecond so that root mean square values of acceleration at the position of a vehicle seat can be reduced by 20% to 50%, and forward rushing and backward bending of a passenger are reduced during braking and acceleration, thereby driving is quiet and accurate and riding is comfortable. The property of attaching of a wheel to the ground is improved remarkably, and smoothness, safety and reliability of driving are improved remarkably and danger for a driver to drive on rugged roads in mines and the like is reduced greatly, thereby the electromagnetic shock absorber is suitable for various road surfaces.
Description
Technical field
The utility model belongs to a kind of Motor Vehicle vibration damping equipment, particularly a kind of Motor Vehicle electromagnetic variable force shock absorber.
Background technique
Vibration damper is the significant components of vehicle suspension arrangements such as heavy vehicle, tank, armored vehicle, and prior oscillating damper comes branch to mainly contain hydraulic shock absorber and air type vibration damper by the material that produces damping.Wherein the characteristics of hydraulic shock absorber are light weight, and overall sizes is less, and are relatively simple for structure, are easy to obtain required resistance.Existing hydraulic shock absorber is divided into unidirectional circulating and the two-way two kinds of structural types that back and forth flow.The patent No. is that 03211789.2 utility model patent discloses a kind of novel " hydraulic shock absorber ", promptly is a kind of two-way structural type that back and forth flows, and has breath and shakes rapidly, effectively cushions, and working stability is reliable, advantages such as good damping result.But find still to exist certain not enough by practical application: as adapting to various working, valve is more, structure is complicated with assembling, the damping adjustment relies on the switching of one-way cock fully, and the circulation area of valve is fixed, thereby can not be fine the realization response fast, damping force is adjustable continuously, the requirement that smoothness is good
The model utility content
The purpose of this utility model provides a kind of electromagnetic variable force shock absorber.This vibration damper has damping force to be changed the control time and dwindles significantly, and stability is strong, the damping force adjustable extent is wide and damping force is adjustable continuously.This vibration damper is applied to vehicle hanging/suspension system, in conjunction with corresponding controller, can effectively reduce the acceleration root-mean-square value at vehicle seat place, in brake and accelerating process, reduce occupant's preshoot and layback, drive quiet, accurate, ride comfort, wheel subsides ground property is significantly improved, and drives smoothness, Security and reliability and significantly improves.
The utility model is achieved through the following technical solutions: it comprises the oil storage cylinder base of connecting ring under the piston rod, piston, guide holder, connection of connecting ring in oil storage cylinder, clutch release slave cylinder, oil seal cover, the connection, it is characterized in that: electromagnetic coil is set on piston, install the lead that connects electromagnetic coil in the piston rod, damp channel is set on the piston, and damp channel communicates with the electromagnetic coil peripheral space; The spool of assembling band opening is assembled spring between core valve and the valve seat on valve seat, has the runner that communicates with the spool opening on piston rod.
Connect stop collar on the above-mentioned piston rod.
Advantage of the present utility model: 1, adopt special-purpose damping fluid intellectual material and new-type structure, the utlity model has that response is fast, stability is strong, the damping force adjustable extent is wide and the continuous adjustable feature of damping force.The time that changes has only Millisecond, changes the needed time of control much smaller than general damping force.2, this vibration damper is applied to vehicle hanging/suspension system, in conjunction with corresponding controller, can make the acceleration root-mean-square value at vehicle seat place reduce 20%～50%, in brake and accelerating process, reduce occupant's preshoot and layback, drive peace and quiet, accurate, ride comfort.3, wheel subsides ground property is significantly improved, and drives smoothness, Security and reliability and significantly improves, and has reduced the danger that the driver drives on crankcase ventilatons such as mine greatly, adapts to multiple road surface.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a piston portion structural representation of the present utility model
Embodiment
See Fig. 1,2, the utility model concrete structure is as follows: welding oil storage cylinder 6 and clutch release slave cylinder 7 on the base 19 are set to annular oil storage chamber 8 between oil storage cylinder 6 and the clutch release slave cylinder 7.In the clutch release slave cylinder 7 is active chamber 9.Oil storage cylinder 6 and clutch release slave cylinder 7 upper ends are fixedlyed connected oil seal cover 3 respectively, guide holder 24.Have oil duct 5 on the guide holder 24, oil duct 5 is communicated with annular oil storage chamber 8 and active chamber 9.Piston rod 10 is installed on oil seal cover 3, the guide holder 24, and oil sealing 23,22 is set on oil seal cover 3, the guide holder 24 and between the piston rod 10.Piston rod 10 upper ends connect goes up connecting ring 1, and covers 2 connection dust-proof cover 4 by welding.Piston rod 10 lower ends connect piston 15, assembling iron core 17 on the piston 15, assembling electromagnetic coil 16 on the iron core 17.Install lead 11 in piston rod 10, lead 11 connects electromagnetic coil 16.The external control panel in the outer end that lead 11 is drawn.Damp channel 14 is set on the piston 15, and damp channel 14 communicates with the electromagnetic coil peripheral space; Assemble the valve seat 26 of tape spool at the front end of piston 15 to valve opening, the slidable core valve 18 of assembling on the axial valve opening of valve seat 26, core valve 18 is provided with axial passage and radial direction through hole, assembling spring 25 between valve seat 26 and core valve 18.On piston rod 10, have oil duct 13, the axial passage that oil duct 13 is communicated with on the core valve 18.Connect stop collar 12 on the piston rod 10.Charge into damping fluid in oil storage cylinder 6 and the clutch release slave cylinder 7, damping fluid comprises the raw material of following part by weight: vibration damper hydraulic pressure oil 85-80,8-10 μ m carbonyl iron dust 3-6, liquid silica gel 8-14.Above-mentioned raw materials provides by market.
Working principle of the present utility model: under the normal condition, piston 15 is positioned at the middle part of cylinder, when meeting Uneven road when jolting downwards, piston 15 is to lower compression, piston top be decompression, the bottom is divided into supercharging, this moment, annular oil storage chamber 8 interior damping fluids flowed in the active chambers 9 from oil duct 5, and simultaneously, core valve 18 cuts out, resistance strengthens, and plays damping effect.Damping fluid slowly flow to active chamber above the piston from the oil duct 5 of piston simultaneously.Meanwhile, external control devices will be controlled voltage and conduct to electromagnetic coil 16 by lead 11, electromagnetic coil 16 produces magnetic field, small soft magnetic particles in the damp channel 14 is subjected to the action of a magnetic field, is collected at damp channel 14 places, makes the damping fluid retrogradation of damp channel 14 inside, by regulating the power of control electric current, the damping fluid viscosity of damp channel 14 inside is changed, and damping fluid under the action of a magnetic field viscosity can moment continuously along inversionization, thereby realize the continuous adjusting of damping.When car body to the scend time-out, upwards operation of piston 15, piston top for supercharging, the bottom is divided into decompression, a part of damping fluid in the active chamber 9 is in oil duct 5 flow back intos annular oil storage chamber 8 at this moment, simultaneously, core valve 18 is opened, the part damping fluid of active chamber flow to following active chamber above the piston, and meanwhile, external control devices will be controlled voltage and conduct to electromagnetic coil 16 by lead 11, electromagnetic coil produces magnetic field, small soft magnetic particles in the damp channel is subjected to the action of a magnetic field, is collected at damp channel 14 places, makes the damping fluid retrogradation of damp channel 14 inside, by regulating the power of control electric current, the damping fluid viscosity of damp channel 14 inside is changed, and damping fluid under the action of a magnetic field viscosity can moment continuously along inversionization, thereby realize the continuous adjusting of damping.
The magnetic field energy of above-mentioned coil changes the viscosity of damping fluid, under strong magnetic field action, presents the visco-plastic body characteristic of high viscosity, lazy flow.The power of the strong and weak controlling magnetic field by current signal, thus the damping force size of control vibration damper reduces body vibrations.When removing electricity, the damping fluid characteristic is replied reset condition, and electromagnetic variable force is that it(?) can be at short notice under electromagnetic field effect become viscoplastic fluid by the fluid of the good flowability that flows, and this variation be continuous, reversible, rapid, be easy to control.
Claims (2)
1. electromagnetic variable force shock absorber, it comprises the oil storage cylinder base of connecting ring under the piston rod, piston, guide holder, connection of connecting ring in oil storage cylinder, clutch release slave cylinder, oil seal cover, the connection, it is characterized in that: electromagnetic coil is set on piston, install the lead that connects electromagnetic coil in the piston rod, damp channel is set on the piston, and damp channel communicates with the electromagnetic coil peripheral space; The spool of assembling band opening is assembled spring between core valve and the valve seat on valve seat, has the runner that communicates with the spool opening on piston rod.
2. electromagnetic variable force shock absorber according to claim 1 is characterized in that: connect stop collar on the piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202552526U CN201779206U (en) | 2010-07-13 | 2010-07-13 | Electromagnetic shock absorber capable of changing force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202552526U CN201779206U (en) | 2010-07-13 | 2010-07-13 | Electromagnetic shock absorber capable of changing force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779206U true CN201779206U (en) | 2011-03-30 |
Family
ID=43792418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202552526U Expired - Fee Related CN201779206U (en) | 2010-07-13 | 2010-07-13 | Electromagnetic shock absorber capable of changing force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779206U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444698A (en) * | 2014-12-15 | 2015-03-25 | 重庆和航科技股份有限公司 | Elevator adaptive reduction damping force buffer system |
| CN108884895A (en) * | 2016-04-08 | 2018-11-23 | 标致雪铁龙汽车股份有限公司 | It is equipped with the hydraulic buffer of the attack stop part with adjustable braking rule |
-
2010
- 2010-07-13 CN CN2010202552526U patent/CN201779206U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444698A (en) * | 2014-12-15 | 2015-03-25 | 重庆和航科技股份有限公司 | Elevator adaptive reduction damping force buffer system |
| CN108884895A (en) * | 2016-04-08 | 2018-11-23 | 标致雪铁龙汽车股份有限公司 | It is equipped with the hydraulic buffer of the attack stop part with adjustable braking rule |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20110713 |