CN103322114A - Spiral valve hole type magnetorheological damper - Google Patents
Spiral valve hole type magnetorheological damper Download PDFInfo
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- CN103322114A CN103322114A CN2013102041548A CN201310204154A CN103322114A CN 103322114 A CN103322114 A CN 103322114A CN 2013102041548 A CN2013102041548 A CN 2013102041548A CN 201310204154 A CN201310204154 A CN 201310204154A CN 103322114 A CN103322114 A CN 103322114A
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Abstract
The invention discloses a spiral valve hole type magnetorheological damper which comprises an oil seal, an oil seal base, a guider, an end cover, a working cylinder, an inner cylinder barrel, a flow guide cover, a piston rod, a piston, a bottom valve assembly, magnetorheological fluid in the damper and a connecting piece with two ends connected with a suspension frame system. A spiral valve hole is formed in the guider, a valve hole inlet is formed in the bottom of the guider, and a valve hole outlet is formed in the upper portion of the guider through the spiral valve hole spiraling one circle or a plurality of circles around the axis. The spiral valve hole type magnetorheological damper further comprises a coil, and the coil is arranged at the position close to the spiral valve hole of the guider. Through skillful design of the valve hole structure, the spiral valve hole type magnetorheological damper extends the action range of the magnetic field and greatly increases the damping force regulation range. In addition, the magnet exciting coil can be arranged flexibly and can be arranged on the inner side and can also be arranged on the outer side, wherein the coil is arranged on the outer side of the damper, arrangement of a multi-turn coil and large current is convenient, large magnetic field strength can be provided, and the damping force regulation range is extended further.
Description
Technical field
The invention belongs to the damper technique field, the screw valve cellular type magneto-rheological vibration damper that is specifically related to a kind of high-efficiency, has big damping force regulation range.
Background technique
For accelerating the decay of vehicle frame and body vibrations, to improve ride of vehicle, in the suspension inside of most of automobiles vibration damper is housed.
Be provided with rebound valve, compression valve, recuperation valve and flowing valve in the vibration damper that common vehicle suspension is used.When vehicle frame (perhaps monocoque body) and vehicle bridge relative movement, the piston of vibration damper will be reciprocating in cylinder barrel, and the fluid in the active chamber will be decayed from vibration and the impact of ground and motor thereby produce damping force by each valve system.The size of its damping depends on the flexible size of each valve member valve block group; In case after each valve block group adjustment installed, the damping characteristic of this each valve member of vibration damper and the damping property of vibration damper just determined that also its scope that adapts to pavement behavior is also determined thereupon.When the pavement behavior of travelling when vehicle exceeds accommodation, it is excessive or too small and do not reach the effectiveness in vibration suppression of coupling damping power to occur, the damping property of vibration damper more can not be what is the need for and will adjust automatically in the vehicle running process according to operating mode, and magneto-rheological vibration damper a kind of vibration damper that can change damping according to operating mode just.
In the design of magneto-rheological vibration damper, how to accomplish to optimize the magnetic field supply system better, and to design effective passage so that being provided, wideer damping force regulation range is a key issue.
Summary of the invention
The object of the present invention is to provide a kind of high-efficiency magneto-rheological vibration damper, under same energy consumes, can provide higher damping force regulation range.
The present invention is achieved through the following technical solutions for solving the problems of the technologies described above:
A kind of screw valve cellular type magneto-rheological vibration damper mainly comprises the magnetic flow liquid of oil sealing 1, oil sealing base 2, guider 3, end cap 4, clutch release slave cylinder 5, inner cylinder tube 6, air guide sleeve 7, piston rod 8, piston 9, bottom valve assembly 10, coil 11, vibration damper inside and the link that two ends are connected with suspension system;
Described inner cylinder tube 6 coaxial being nested in the clutch release slave cylinder 5, piston 9 and the piston rod 8 that is connected with piston 9 are slidingly connected at inner cylinder tube 6 inside, and the port, lower end of inner cylinder tube 6 is installed with bottom valve assembly 10;
Lower port place and the foot valve seat 10b of described clutch release slave cylinder 5 are tightly connected, and the upper port place of clutch release slave cylinder 5 is provided with guider 3, oil sealing 1 and oil sealing base 2, and fixing by end cap 4;
The circulation valve opening place of described piston 9 and bottom valve assembly 10 is equipped with piston one-way valve 9a and bottom valve one-way valve 10a respectively, and this one-way valve is made of one or more ring-shaped valves or dish shape spring valve plate, spring seat and stage clip respectively.
Described guider 3 inside are processed with spiral valve opening 3b, and guider 3 bottoms are processed with valve opening entrance 3a, then through the spiral valve opening 3b around axis spiral one circle or multi-turn, are processed with valve opening outlet 3c on guider 3 tops; Guider 3 can be integral piece, and is one-body molded, also can be divided into two parts in the centerline of spiral valve opening 3b, respectively processing; Guider 3 also can axially arrange multilayer along piston rod 8, further increases passage length.
Described coil 11 is arranged in the position of the spiral valve opening 3b that closes on guider 3, can be arranged in clutch release slave cylinder 5 outsides or inner.When coil 11 is arranged in the outside, be convenient to heat radiation and lead-in wire, be convenient to the layout that multiturn is counted coil and big electric current simultaneously, bigger magnetic intensity can be provided, and then enlarge the regulation range of damping force.
When piston 9 moves upward, magnetic flow liquid arrives spiral valve opening 3b through valve opening entrance 3a, the magnetic field generation effect that coil 11 produces, change the viscosity of magnetic flow liquid, and then adjusting damping force, magnetic flow liquid arrives receiving fluids zone, guider 3 top through valve opening outlet 3c then, afterwards via and the passage that connects of this part receiving fluids zone flow to gap between clutch release slave cylinder 5 inwalls and guider 3 outer walls, and then enter shoe cream room; Meanwhile, the magnetic flow liquid in the shoe cream room flows into rodless cavity by bottom valve one-way valve 10a;
When piston 9 moved downward, magnetic flow liquid in the rodless cavity flowed into rod chamber through piston one-way valve 9a, because the volume of rod chamber is less than the rodless cavity volume, and the spiral valve opening 3b so the part magnetic flow liquid also can be flowed through, and then get back to shoe cream room.
When as seen piston 9 of the present invention moved up and down, magnetic flow liquid along the direction spiral valve opening 3b that flows through, carried out major cycle all the time, is conducive to the heat radiation of vibration damper fluid like this.
When magnetic flow liquid flows in spiral valve opening 3b, its flow direction is vertical with the magnetic direction that coil 11 produces, spiral valve opening 3b can arrange circle or a multi-turn as required, even can as required the guider 3 that has spiral valve opening 3b be designed to multi-layer structure, further prolong effective passage, magnetic field is bigger to the influence of the magnetic flow liquid in the circulation passage, and the zone of action is more extensive, can further increase the regulation range of damping force.
In addition, the magnetic flow liquid of the gap area between clutch release slave cylinder 5 and the guide holder 3 also flows to also perpendicular to the magnetic induction line direction, also can change magnetic flow liquid viscosity and then regulate damping force by magnetic field.
Beneficial effect of the present invention is: by valve design hole structure dexterously, prolong the action range in magnetic field, greatly increased the regulation range of damping force; In addition, the flexible arrangement that other characteristics of the present invention are field coils can be built-in, also can be external, wherein coil is arranged in the vibration damper outside, be convenient to multiturn and count coil and big electric current layout, bigger magnetic intensity can be provided, enlarge the regulation range of damping force again further.
Description of drawings
Fig. 1 is overall structure schematic representation of the present invention;
Fig. 2 is that C-C cross section view and magnetic flow liquid flow to schematic representation among Fig. 1;
Fig. 3 is A-A cross section view among Fig. 1, is respectively two kinds of embodiments of spiral valve opening;
Fig. 4 is B-B cross section view among Fig. 1.
Among the figure:
1, oil sealing 2, oil sealing base 3, guider 4, end cap 5, clutch release slave cylinder 6, inner cylinder tube
7, air guide sleeve 8, piston rod 9, piston 10, bottom valve assembly 11, coil
3a, valve opening entrance 3b, spiral valve opening 3c, valve opening outlet
9a, piston one-way valve 10a, bottom valve one-way valve 10b, foot valve seat
Embodiment
Below in conjunction with accompanying drawing invention is described in detail.
Fig. 1 is overall structure schematic representation of the present invention, shown a kind of screw valve cellular type magneto-rheological vibration damper mainly comprises the magnetic flow liquid of oil sealing 1, oil sealing base 2, guider 3, end cap 4, clutch release slave cylinder 5, inner cylinder tube 6, air guide sleeve 7, piston rod 8, piston 9, bottom valve assembly 10, coil 11, vibration damper inside and the link that two ends are connected with suspension system;
Described inner cylinder tube 6 coaxial being nested in the clutch release slave cylinder 5, piston 9 and the piston rod 8 that is connected with piston 9 are slidingly connected at inner cylinder tube 6 inside, and the port, lower end of inner cylinder tube 6 is installed with bottom valve assembly 10;
Lower port place and the foot valve seat 10b of described clutch release slave cylinder 5 are tightly connected, and the upper port place of clutch release slave cylinder 5 is provided with guider 3, oil sealing 1 and oil sealing base 2, and fixing by end cap 4;
The circulation valve opening place of described piston 9 and bottom valve assembly 10 is equipped with piston one-way valve 9a and bottom valve one-way valve 10a respectively, and this one-way valve is made of one or more ring-shaped valves or dish shape spring valve plate, spring seat and stage clip respectively.
Described guider 3 inside are processed with spiral valve opening 3b, and guider 3 bottoms are processed with valve opening entrance 3a, then through the spiral valve opening 3b around axis spiral one circle or multi-turn, are processed with valve opening outlet 3c on guider 3 tops; Guider 3 can be integral piece, and is one-body molded, also can be divided into two parts in the centerline of spiral valve opening 3b, respectively processing; Guider 3 also can axially arrange multilayer along piston rod 8, further increases passage length.
Described coil 11 is arranged in the position of the spiral valve opening 3b that closes on guider 3, can be arranged in clutch release slave cylinder 5 outsides or inner.When coil 11 is arranged in the outside, be convenient to heat radiation and lead-in wire, be convenient to the layout that multiturn is counted coil and big electric current simultaneously, bigger magnetic intensity can be provided, and then enlarge the regulation range of damping force.
Fig. 2 is that C-C cross section view and magnetic flow liquid flow to schematic representation among Fig. 1, when piston 9 moves upward, magnetic flow liquid arrives spiral valve opening 3b through valve opening entrance 3a, the magnetic field generation effect that coil 11 produces, change the viscosity of magnetic flow liquid, and then adjusting damping force, magnetic flow liquid arrives receiving fluids zone, guider 3 top through valve opening outlet 3c then, as shown in Figure 4, afterwards via and the passage that connects of this part receiving fluids zone flow to gap between clutch release slave cylinder 5 inwalls and guider 3 outer walls, and then enter shoe cream room; Meanwhile, the magnetic flow liquid in the shoe cream room flows into rodless cavity by bottom valve one-way valve 10a;
When piston 9 moved downward, magnetic flow liquid in the rodless cavity flowed into rod chamber through piston one-way valve 9a, because the volume of rod chamber is less than the rodless cavity volume, and the spiral valve opening 3b so the part magnetic flow liquid also can be flowed through, and then get back to shoe cream room.
When as seen piston 9 of the present invention moved up and down, magnetic flow liquid along the direction spiral valve opening 3b that flows through, carried out major cycle all the time, is conducive to the heat radiation of vibration damper fluid like this.
A-A cross section view among Fig. 1 shown in Figure 3 is a kind of embodiment of the present invention, and among this embodiment, guider 3 has two circle spiral valve opening 3b, and corresponding two valve opening entrance 3a and two valve opening outlet 3c, has fully prolonged effective passage of magnetic flow liquid.Wherein the medial axis of spiral valve opening 3b is equal diameter 3/4ths circles among Fig. 3 (a), is convenient to processing like this; The medial axis of spiral valve opening 3b is the non-isodiametric helix that is similar to mosquito-repellent incense among Fig. 3 (b), and this is conducive to further increase effective passage of magnetic flow liquid.
When magnetic flow liquid flows in spiral valve opening 3b, its flow direction is vertical with the magnetic direction that coil 11 produces, spiral valve opening 3b can arrange circle or a multi-turn as required, even can as required the guider 3 that has spiral valve opening 3b be designed to multi-layer structure, further prolong effective passage, magnetic field is bigger to the influence of the magnetic flow liquid in the circulation passage, and the zone of action is more extensive, can further increase the regulation range of damping force.
In addition, the magnetic flow liquid of the gap area between clutch release slave cylinder 5 and the guide holder 3 also flows to also perpendicular to the magnetic induction line direction, also can change magnetic flow liquid viscosity and then regulate damping force by magnetic field.
Above-described embodiment only is used for explanation the present invention, and wherein the structure of each parts, Placement etc. all can change to some extent, and every equivalents and improvement of carrying out on the basis of technical solution of the present invention all should do not got rid of outside protection scope of the present invention.
Claims (10)
1. a screw valve cellular type magneto-rheological vibration damper comprises the magnetic flow liquid of oil sealing (1), oil sealing base (2), guider (3), end cap (4), clutch release slave cylinder (5), inner cylinder tube (6), air guide sleeve (7), piston rod (8), piston (9), bottom valve assembly (10), vibration damper inside and the link that two ends are connected with suspension system;
Described inner cylinder tube (6) is coaxial to be nested in the clutch release slave cylinder (5), and piston (9) and the piston rod (8) that is connected with piston (9) are slidingly connected at inner cylinder tube (6) inside, and the port, lower end of inner cylinder tube (6) is installed with bottom valve assembly (10);
The lower port place of described clutch release slave cylinder (5) and foot valve seat (10b) are tightly connected, and the upper port place of clutch release slave cylinder (5) is provided with guider (3), oil sealing (1) and oil sealing base (2), and fixing by end cap (4);
The circulation valve opening place of described piston (9) and bottom valve assembly (10) is equipped with piston one-way valve (9a) and bottom valve one-way valve (10a) respectively, and this one-way valve is made of one or more ring-shaped valves or dish shape spring valve plate, spring seat and stage clip respectively;
It is characterized in that:
Described guider (3) inside is processed with spiral valve opening (3b), guider (3) bottom is processed with valve opening entrance (3a), through the spiral valve opening (3b) around axis spiral one circle or multi-turn, be processed with valve opening outlet (3c) on guider (3) top then;
Also comprise coil (11), described coil (11) is arranged in the position of the spiral valve opening (3b) that closes on guider (3).
2. a kind of screw valve cellular type magneto-rheological vibration damper according to claim 1 is characterized in that:
Described guider (3) is integral piece, and is one-body molded.
3. a kind of screw valve cellular type magneto-rheological vibration damper according to claim 1 is characterized in that:
Described guider (3) is divided into two parts in the centerline of spiral valve opening (3b), respectively processing.
4. according to each described a kind of screw valve cellular type magneto-rheological vibration damper of claim 1 to 3, it is characterized in that:
The described guider (3) that is processed with spiral valve opening (3b) axially arranges multilayer along piston rod (8).
5. according to each described a kind of screw valve cellular type magneto-rheological vibration damper of claim 1 to 3, it is characterized in that:
Described spiral valve opening (3b) arranges circle or a multi-turn in guider (3) inside.
6. according to each described a kind of screw valve cellular type magneto-rheological vibration damper of claim 1 to 3, it is characterized in that:
The medial axis of described spiral valve opening (3b) is isodiametric circle.
7. according to each described a kind of screw valve cellular type magneto-rheological vibration damper of claim 1 to 3, it is characterized in that:
The medial axis of described spiral valve opening 3b is non-isodiametric helix.
8. a kind of screw valve cellular type magneto-rheological vibration damper according to claim 1 is characterized in that:
Described coil (11) is arranged in clutch release slave cylinder (5) outside.
9. a kind of screw valve cellular type magneto-rheological vibration damper according to claim 1 is characterized in that:
Described piston (9) is when moving upward, magnetic flow liquid arrives spiral valve opening (3b) through valve opening entrance (3a), the magnetic field generation effect that coil (11) produces, change the viscosity of magnetic flow liquid, regulate damping force, magnetic flow liquid arrives receiving fluids zone, guider (3) top through valve opening outlet (3c) then, afterwards via and the passage that connects of this part receiving fluids zone flow to gap between clutch release slave cylinder (5) inwall and guider (3) outer wall, and then enter shoe cream room; Meanwhile, the magnetic flow liquid in the shoe cream room flows into rodless cavity by bottom valve one-way valve (10a).
10. a kind of screw valve cellular type magneto-rheological vibration damper according to claim 1 is characterized in that:
Described piston (9) is when moving downward, magnetic flow liquid in the rodless cavity flows into rod chamber through piston one-way valve (9a), because the volume of rod chamber is less than the rodless cavity volume, the spiral valve opening (3b) so the part magnetic flow liquid also can be flowed through, and then get back to shoe cream room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102041548A CN103322114A (en) | 2013-05-28 | 2013-05-28 | Spiral valve hole type magnetorheological damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102041548A CN103322114A (en) | 2013-05-28 | 2013-05-28 | Spiral valve hole type magnetorheological damper |
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| CN103322114A true CN103322114A (en) | 2013-09-25 |
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| CN2013102041548A Pending CN103322114A (en) | 2013-05-28 | 2013-05-28 | Spiral valve hole type magnetorheological damper |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104791410A (en) * | 2015-04-29 | 2015-07-22 | 柳州孔辉汽车科技有限公司 | Magnetorheogical fluid absorber |
| CN104963983A (en) * | 2015-05-14 | 2015-10-07 | 山东理工大学 | Coil externally-wrapping magnetorheological fluid damper |
| CN105114504A (en) * | 2015-07-24 | 2015-12-02 | 重庆材料研究院有限公司 | Buffer energy absorption device based on magneto-rheological materials |
| CN107314077A (en) * | 2017-07-13 | 2017-11-03 | 盐城市步高汽配制造有限公司 | A kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil |
| CN107575522A (en) * | 2017-07-25 | 2018-01-12 | 东南大学 | A kind of magnetorheological mud damper of foraminous spiral tract |
| CN108105318A (en) * | 2017-12-22 | 2018-06-01 | 南阳淅减汽车减振器有限公司 | A kind of multistage radial direction magneto-rheological vibration damper |
| WO2019011042A1 (en) * | 2017-07-13 | 2019-01-17 | 盐城市步高汽配制造有限公司 | Magneto-rheological damper having external coils |
| WO2019011043A1 (en) * | 2017-07-13 | 2019-01-17 | 盐城市步高汽配制造有限公司 | Magneto-rheological damper having external coils |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791410A (en) * | 2015-04-29 | 2015-07-22 | 柳州孔辉汽车科技有限公司 | Magnetorheogical fluid absorber |
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| WO2019011042A1 (en) * | 2017-07-13 | 2019-01-17 | 盐城市步高汽配制造有限公司 | Magneto-rheological damper having external coils |
| WO2019011043A1 (en) * | 2017-07-13 | 2019-01-17 | 盐城市步高汽配制造有限公司 | Magneto-rheological damper having external coils |
| CN107575522A (en) * | 2017-07-25 | 2018-01-12 | 东南大学 | A kind of magnetorheological mud damper of foraminous spiral tract |
| CN108105318A (en) * | 2017-12-22 | 2018-06-01 | 南阳淅减汽车减振器有限公司 | A kind of multistage radial direction magneto-rheological vibration damper |
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Application publication date: 20130925 |