CN102767589A - Magneto-rheological damper adjustable in damping channel height - Google Patents
Magneto-rheological damper adjustable in damping channel height Download PDFInfo
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- CN102767589A CN102767589A CN2012102241696A CN201210224169A CN102767589A CN 102767589 A CN102767589 A CN 102767589A CN 2012102241696 A CN2012102241696 A CN 2012102241696A CN 201210224169 A CN201210224169 A CN 201210224169A CN 102767589 A CN102767589 A CN 102767589A
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- lifting board
- chute
- slide bar
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Abstract
The invention discloses a magneto-rheological damper adjustable in damping channel height. The magneto-rheological damper adjustable in damping channel height comprises a first external connecting rod (12), a second external connecting rod (13), a cylinder body (2), a circularly square piston (3), an electromagnetic coil (4), a first lifting plate (51), a second lifting plate (52), magneto-rheological fluid (9), a first slide way (10) and a second slide way (11), wherein the circularly square piston (3), the electromagnetic coil (4), the first lifting plate (51), the second lifting plate (52) and the magneto-rheological fluid (9) are arranged in the cylinder body (2). The height of a first clamping channel or a second damping channel is changed by changing the position of the first lifting plate or the second lifting plate. The magneto-rheological damper can be adjustable in damping channel height, so that output damping force of the magneto-rheological damper is no longer limited in a fixed interval and can be manually adjusted within a large range, and the magneto-rheological damper adjustable in damping channel height has high use value.
Description
Technical field
The present invention relates to half active vibration control gear, be specifically related to a kind of MR damper of adjusting the damp channel height.
Background technique
The MR damper of processing with magnetic flow liquid is a kind of semi-automatic control device of function admirable; It is simple in structure, response is fast, dynamic range is big, good endurance; Even under the situation that control system lost efficacy, still can serve as the Passive Control device, have very strong reliability.Magnetorheological damping control had both had the reliability of passive control system as a kind of half ACTIVE CONTROL system; The strong adaptability that has the ACTIVE CONTROL system again; Can reach the control effect very approaching with the ACTIVE CONTROL system through certain control law, be a kind of better future in engineering applications control technique that has.
The formula of the damping force that MR damper can provide is following:
In the formula,
Apparent viscosity for damp liquid;
LBe the magnetic conduction section length;
hBe the damp channel height;
DBe cylinder diameter;
dBe piston diameter;
vBe the relative velocity between piston and cylinder body;
Be the shear yield strength of damp liquid, with current related; Sgn is a sign function.
Observe the formula of MR damper output damping force and can know that MR damper provides the size and the damp channel height of damping force
hShear yield strength with damp liquid
Relevant, through regulating the damp channel height
hShear yield strength with damp liquid
Can change the size of MR damper damping force, and the damp channel height
hIn formula, be positioned at denominator term, its size is very big to the influence of the size of damping force.But; The piston of the MR damper of existing kind and the gap between the cylinder body are fixed, and promptly the height of damp channel is non-adjustable, and the variation of damping force can only realize through the flow through electric current of electromagnetic coil of adjusting; For this reason; At present a lot of MR dampers all are according to the needs of actual conditions and customized, do not have a kind of MR damper that can generally use, this big limitations The Applications of Magnetorheological Dampers and development.
Therefore, need a kind of MR damper of the damp channel adjusted height newly to solve the problems referred to above.
Summary of the invention
Goal of the invention: The present invention be directed to the existing technology MR damper and can't effectively regulate the damp channel height; Thereby can't in a wideer scope, regulate the big or small defective of output damping force, the adjustable for height MR damper of a kind of damp channel has been proposed.
Technological scheme: for realizing the foregoing invention purpose, the adjustable for height MR damper of damp channel of the present invention can adopt following technological scheme:
The adjustable for height MR damper of a kind of damp channel; Comprise the first outside connecting rod, the second outside connecting rod, cylinder body, circle square piston and electromagnetic coil; Also comprise first lifting board, second lifting board, magnetic flow liquid, first chute and second chute, said round square piston, electromagnetic coil, first lifting board, second lifting board, magnetic flow liquid all are arranged in the said cylinder body; The relative both sides of said cylinder body are provided with said first chute and said second chute; One side of said first lifting board is provided with first slide bar; Said first lifting board connects an end of said first slide bar; One side of said second lifting board is provided with second slide bar; Said second lifting board connects an end of said second slide bar, and said first slide bar is arranged in said first chute and matches with said first chute, and said first slide bar can said relatively first runner movement; Said second slide bar is arranged in said second chute and matches with said second chute, and said second slide bar can said relatively second runner movement; Said round square piston is arranged between said first lifting board and said second lifting board; Said electromagnetic coil is arranged on the said round square piston; The cross section of said round square piston is surrounded by two straight lines that are parallel to each other and two relative circular arc lines; Two the circular arc sides of said round square piston and the inner surface of said cylinder body closely suit, and the space between said first lifting board and the said round square piston forms first damp channel; Space between said second lifting board and the said round square piston forms second damp channel; The two ends of said round square piston connect an end of said first outside connecting rod one end and the said second outside connecting rod respectively, and the other end of the other end of the said first outside connecting rod and the said second outside connecting rod all stretches out said cylinder body.
Inventive principle: when in adjustable extent, changing the electric current on the electromagnetic coil, corresponding variation can take place in the damping force of output.If change the position of first lifting board or second lifting board, promptly change the height of first damp channel or second damp channel, when then in adjustable extent, changing the electric current on the electromagnetic coil, the damping force of output can change between other one group of upper and lower.Therefore, realized the adjustable of output damping force scope.
Beneficial effect: the adjustable for height MR damper of damp channel of the present invention has been realized the adjustable of MR damper damp channel height; Make the output damping force of MR damper no longer only be confined to a fixing interval; And can in a very big scope, artificially regulate, have very high use value.
Description of drawings
Fig. 1 is the structural representation of the adjustable MR damper of damp channel of the present invention;
Fig. 2 is that the adjustable MR damper A-A of damp channel of the present invention is to sectional view.
Embodiment
Below in conjunction with accompanying drawing the present invention is done explanation further.Below in conjunction with accompanying drawing and specific embodiment; Further illustrate the present invention; Should understand these embodiments only be used to the present invention is described and be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
See also illustrated in figures 1 and 2; The adjustable for height MR damper of damp channel of the present invention comprises the outside connecting rod of the first outside connecting rod 12, second 13, cylinder body 2, circle square piston 3, electromagnetic coil 4, first lifting board 51, second lifting board 52, magnetic flow liquid 9, first chute 10 and second chute 11.Wherein, justify square piston 3, electromagnetic coil 4, first lifting board 51, second lifting board 52, magnetic flow liquid 9 all is arranged in the cylinder body 2.Be full of magnetic flow liquid 9 in the cylinder body 2.The relative both sides of cylinder body 2 are provided with first chute 10 and second chute 11.One side of first lifting board 51 is provided with the end that first slide bar, 53, the first lifting boards 51 connect first slide bar 53.One side of second lifting board 52 is provided with the end that second slide bar, 54, the second lifting boards 52 connect second slide bar 54.First slide bar 53 is arranged in first chute 10 and with first chute 10 and matches, and first slide bar 53 can 10 motions of relative first chute.Second slide bar 54 is arranged in second chute 11 and with second chute 11 and matches, and second slide bar 54 can 11 motions of relative second chute.Wherein first chute 10 and second chute 11 both can provide space for first slide bar 53 and second slide bar 54, were again their guide-track grooves.Circle square piston 3 is arranged between first lifting board 51 and second lifting board 52, and electromagnetic coil 4 is arranged on the round square piston 3.The cross section of circle square piston 3 is surrounded by two straight lines that are parallel to each other and two relative circular arc lines.Two the circular arc sides of circle square piston 3 and the inner surface of cylinder body 2 closely suit.Prevent that magnetic flow liquid 9 from flowing through from here.Space between first lifting board 51 and the circle square piston 3 forms first damp channel 81; Space between second lifting board 52 and the circle square piston 3 forms second damp channel 82.Wherein, first lifting board 51 is the plane with circle square piston 3 relative faces and is parallel to each other, and second lifting board 52 is the plane with circle square piston 3 relative faces and is parallel to each other.Through controlling the height that first damp channel 81 and second damp channel 82 can be controlled in position and second slide bar 54 the position second chute 11 in of first slide bar 53 in first chute 10.When in adjustable extent, changing the electric current on the electromagnetic coil 4, corresponding variation can take place in the damping force of output.If change the position of first lifting board 51 or second lifting board 52; Promptly change the height of first damp channel 81 or second damp channel 82; When then in adjustable extent, changing the electric current on the electromagnetic coil 4, the damping force of output can change between other one group of upper and lower.Therefore, realized the adjustable of output damping force scope.
See also illustrated in figures 1 and 2ly, the two ends of circle square piston 3 connect an end of first outside connecting rod 11 1 ends and the second outside connecting rod 12 respectively, and the other end of the other end of the first outside connecting rod 11 and the second outside connecting rod 12 all stretches out cylinder body 2.Have good positioning behind first lifting board 51 and second lifting board 52; When circle square piston 3 moves under the promotion of the first outside connecting rod 11 or the second outside connecting rod 12; Magnetic flow liquid 9 can flow to the other end from an end of piston through first damp channel 81 and second damp channel 82, thus the generation damping force.
See also illustrated in figures 1 and 2, a part that also comprises a part and second hub cap 62 of first hub cap 61, second hub cap, 62, the first hub caps 61 be arranged in the cylinder body 1 and relatively cylinder body 1 rotate.Wherein, first hub cap 61 all is connected with cylinder body 1 through ball bearing 7 with second hub cap 62.First hub cap 61 is provided with first through hole, has internal thread in first through hole, and second hub cap 62 is provided with second through hole, has internal thread in second through hole; The other end of first slide bar 53 is provided with first screw rod, 531, the first screw rods 531 and is arranged in first through hole threads engaged of the screw thread of first screw rod 531 and first through hole; The other end of second slide bar 54 is provided with second screw rod, 541, the second screw rods 541 and is arranged in second through hole threads engaged of second screw rod 541 and second through hole.Through rotating first hub cap 61 or 62 meeting drive first lifting board 51 or 51 running fixes of second lifting board of second hub cap.
As stated; The adjustable for height MR damper of damp channel of the present invention has been realized the adjustable of MR damper damp channel height; Make the output damping force of MR damper no longer only be confined to a fixing interval; And can in a very big scope, think adjusting to have very high use value.
Claims (4)
1. adjustable for height MR damper of damp channel; Comprise the first outside connecting rod (12), the second outside connecting rod (13), cylinder body (2), circle square piston (3) and electromagnetic coil (4); It is characterized in that; Also comprise first lifting board (51), second lifting board (52), magnetic flow liquid (9), first chute (10) and second chute (11), said round square piston (3), electromagnetic coil (4), first lifting board (51), second lifting board (52), magnetic flow liquid (9) all are arranged in the said cylinder body (2); Be full of said magnetic flow liquid (9) in the said cylinder body (2), the relative both sides of said cylinder body (2) are provided with said first chute (10) and said second chute (11); One side of said first lifting board (51) is provided with first slide bar (53); Said first lifting board (51) connects an end of said first slide bar (53); One side of said second lifting board (52) is provided with second slide bar (54); Said second lifting board (52) connects an end of said second slide bar (54); Said first slide bar (53) is arranged in said first chute (10) and with said first chute (10) and matches; Said first slide bar (53) can move by said relatively first chute (10), and said second slide bar (54) is arranged in said second chute (11) and with said second chute (11) and matches, and said second slide bar (54) can move by said relatively second chute (11); Said round square piston (3) is arranged between said first lifting board (51) and said second lifting board (52); Said electromagnetic coil (4) is arranged on the said round square piston (3); The cross section of said round square piston (3) is surrounded by two straight lines that are parallel to each other and two relative circular arc lines; Two the circular arc sides of said round square piston (3) and the inner surface of said cylinder body (2) closely suit, and the space between said first lifting board (51) and the said round square piston (3) forms first damp channel (81); Space between said second lifting board (52) and the said round square piston (3) forms second damp channel (82); The two ends of said round square piston (3) connect an end of said first outside connecting rod (11) one ends and the said second outside connecting rod (12) respectively, and the other end of the other end of the said first outside connecting rod (11) and the said second outside connecting rod (12) all stretches out said cylinder body (2).
2. the adjustable for height MR damper of damp channel as claimed in claim 1; It is characterized in that; Said first lifting board (51) is the plane with the relative face of said round square piston (3) and is parallel to each other, and said second lifting board (52) is the plane with the relative face of said round square piston (3) and is parallel to each other.
3. the adjustable for height MR damper of damp channel as claimed in claim 1; It is characterized in that; Also comprise first hub cap (61), second hub cap (62); The part of the part of said first hub cap (61) and said second hub cap (62) is arranged in the said cylinder body (1) and said relatively cylinder body (1) rotates, and said first hub cap (61) is provided with first through hole, has internal thread in said first through hole; Said second hub cap (62) is provided with second through hole, has internal thread in said second through hole; The other end of said first slide bar (53) is provided with first screw rod (531), and said first screw rod (531) is arranged in said first through hole, the screw thread of said first screw rod (531) and the threads engaged of said first through hole; The other end of said second slide bar (54) is provided with second screw rod (541), and said second screw rod (541) is arranged in said second through hole, the threads engaged of said second screw rod (541) and said second through hole.
4. the adjustable for height MR damper of damp channel as claimed in claim 1 is characterized in that, said first hub cap (61) all is connected with said cylinder body (1) through ball bearing (7) with said second hub cap (62).
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| CN201210224169.6A CN102767589B (en) | 2012-07-02 | 2012-07-02 | Magneto-rheological damper adjustable in damping channel height |
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| CN201210224169.6A CN102767589B (en) | 2012-07-02 | 2012-07-02 | Magneto-rheological damper adjustable in damping channel height |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979847A (en) * | 2012-12-03 | 2013-03-20 | 河北工业大学 | Rotary type magneto-rheological damper |
| CN103062276A (en) * | 2013-01-15 | 2013-04-24 | 谭晓婧 | Gapped magneto-rheological damper with two piston rods out |
| CN103089905A (en) * | 2013-02-04 | 2013-05-08 | 谭晓婧 | Crack cylinder double-out rod magneto-rheological damper |
| CN103089904A (en) * | 2013-01-29 | 2013-05-08 | 谭晓婧 | Combined cylinder double rod-out magnetorheological damper |
| CN103939518A (en) * | 2014-01-26 | 2014-07-23 | 福建工程学院 | Single-pole surface-plate-type magnetorheological damper |
| CN106002374A (en) * | 2016-06-24 | 2016-10-12 | 哈尔滨理工大学 | Damping type adjustable special tool based on integral impeller milling and damping method |
| CN103942394B (en) * | 2014-04-25 | 2017-02-15 | 郑州大学 | Amplitude limiting optimizing method based on magneto-rheological damper |
| CN110043599A (en) * | 2019-05-08 | 2019-07-23 | 中南大学 | Magnetic rheologic flexible loading device can be positioned |
| CN110861996A (en) * | 2019-11-22 | 2020-03-06 | 南通大学 | Tension balance suspension device |
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| EP0715091A2 (en) * | 1994-12-03 | 1996-06-05 | FICHTEL & SACHS AG | Adjustable vibration damper |
| WO1999031404A1 (en) * | 1997-12-16 | 1999-06-24 | Colebrand Limited | Shock transmission unit |
| CA2637511A1 (en) * | 2006-02-09 | 2007-08-16 | Central Research Institute Of Electric Power Industry | Fluid damper |
| CN101725659A (en) * | 2009-12-15 | 2010-06-09 | 谭和平 | External electromagnet magnetorheological damper |
| CN202203322U (en) * | 2011-08-19 | 2012-04-25 | 谢宁 | Double-ejection-rod magnetorheological damper |
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Patent Citations (5)
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| EP0715091A2 (en) * | 1994-12-03 | 1996-06-05 | FICHTEL & SACHS AG | Adjustable vibration damper |
| WO1999031404A1 (en) * | 1997-12-16 | 1999-06-24 | Colebrand Limited | Shock transmission unit |
| CA2637511A1 (en) * | 2006-02-09 | 2007-08-16 | Central Research Institute Of Electric Power Industry | Fluid damper |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979847B (en) * | 2012-12-03 | 2014-05-07 | 河北工业大学 | Rotary type magneto-rheological damper |
| CN102979847A (en) * | 2012-12-03 | 2013-03-20 | 河北工业大学 | Rotary type magneto-rheological damper |
| CN103062276A (en) * | 2013-01-15 | 2013-04-24 | 谭晓婧 | Gapped magneto-rheological damper with two piston rods out |
| CN103062276B (en) * | 2013-01-15 | 2014-12-10 | 谭晓婧 | Gapped magneto-rheological damper with two piston rods out |
| CN103089904A (en) * | 2013-01-29 | 2013-05-08 | 谭晓婧 | Combined cylinder double rod-out magnetorheological damper |
| CN103089905A (en) * | 2013-02-04 | 2013-05-08 | 谭晓婧 | Crack cylinder double-out rod magneto-rheological damper |
| CN103089905B (en) * | 2013-02-04 | 2015-03-11 | 谭晓婧 | Crack cylinder double-out rod magneto-rheological damper |
| CN103939518A (en) * | 2014-01-26 | 2014-07-23 | 福建工程学院 | Single-pole surface-plate-type magnetorheological damper |
| CN103939518B (en) * | 2014-01-26 | 2015-12-09 | 福建工程学院 | A kind of one pole flat-faced tube magneto-rheological vibration damper |
| CN103942394B (en) * | 2014-04-25 | 2017-02-15 | 郑州大学 | Amplitude limiting optimizing method based on magneto-rheological damper |
| CN106002374A (en) * | 2016-06-24 | 2016-10-12 | 哈尔滨理工大学 | Damping type adjustable special tool based on integral impeller milling and damping method |
| CN110043599A (en) * | 2019-05-08 | 2019-07-23 | 中南大学 | Magnetic rheologic flexible loading device can be positioned |
| CN110861996A (en) * | 2019-11-22 | 2020-03-06 | 南通大学 | Tension balance suspension device |
| WO2021098109A1 (en) * | 2019-11-22 | 2021-05-27 | 南通大学 | Tension balancing suspension apparatus |
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| CN102767589B (en) | 2014-07-16 |
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