CN103089904B - Combined cylinder double rod-out magnetorheological damper - Google Patents
Combined cylinder double rod-out magnetorheological damper Download PDFInfo
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- CN103089904B CN103089904B CN201310032827.6A CN201310032827A CN103089904B CN 103089904 B CN103089904 B CN 103089904B CN 201310032827 A CN201310032827 A CN 201310032827A CN 103089904 B CN103089904 B CN 103089904B
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- slave cylinder
- clutch release
- release slave
- piston
- cylinder body
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Abstract
The invention discloses a combined cylinder double rod-out magnetorheological damper which comprises a piston, two piston rods and a working cylinder, wherein the working cylinder is composed of a working cylinder body, two identical slide damping blocks, an adjusting threaded rod and two end covers, the working cylinder body is cylindrical, two symmetrical grooves which are shaped like isosceles trapezoids in the axial direction are formed in the inner circumferential wall of the working cylinder body, and the two damping blocks are mounted in the two grooves of the inner circumferential wall of the working cylinder body; one end of the adjusting threaded rod penetrates through threaded through holes of the slide damping blocks and is mounted on one end cover, and the other end of the adjusting threaded rod penetrates through an adjusting hole on the other end cover and stretches out from the working cylinder; the piston is in a circular cylinder shape, a magnet exciting coil is wound in the middle of the piston, the external diameter of the piston is smaller than the internal diameter of the working cylinder, and a flow gap of magnetorheological fluids is reserved; and one of the piston rods is provided with a center through hole, an outgoing line of the magnet exciting coil passes through the center through hole of the piston rod and is guided to the outside of the working cylinder, and the magnetorheological fluids are filled in the working cylinder.
Description
Technical field
The invention belongs to a kind of MR damper, be specifically related to the two outstretch pole magnetorheological damper of a kind of combination jars.
Background technique
MR damper is a kind of intelligent vibration damping device, the structure of common MR damper installs piston in clutch release slave cylinder, and magnetic flow liquid is filled with in clutch release slave cylinder, the electromagnetic field intensity being applied to magnetic flow liquid in clutch release slave cylinder is adjusted by controlling power supply, the viscosity of magnetic flow liquid in clutch release slave cylinder is changed, thus make the magnetic flow liquid in clutch release slave cylinder can obtain different damping forces when being pressed through the working clearance between piston outer periphery wall from clutch release slave cylinder inner circle wall, as: Chinese Patent Application No. is: " the two rod magnetic flux variable fluid damper of built-in air bag type " of 03132633.1, and Chinese Patent Application No. is: " two rod magnetic steel piston type magneto-rheological damper " of 201120071512.9, because the working clearance in this kind of MR damper between cylindrical piston and clutch release slave cylinder is constant, the size of its damping force can only power supply carries out regulating by controlling, the regulation range of its damping force is difficult to expand, and the two outstretch pole magnetorheological damper of combination jars of the present invention not only can regulate its damping force by controlling power supply, can also by the gap width that adjustment clutch release slave cylinder slides between damping fin and trapezoidal groove, the size of the damp channel that the magnetic flow liquid in clutch release slave cylinder is flowed changes, and make damping force during its work obtain larger expansion.
Summary of the invention
Can not regulate for the working clearance in common MR damper between piston outer periphery wall and clutch release slave cylinder inner circle wall, its damping force regulation range is made to be difficult to the deficiency expanded, the present invention proposes a kind of novel MR damper, that is: the two outstretch pole magnetorheological damper of combination jars, technological scheme of the present invention is as follows:
The two outstretch pole magnetorheological damper of a kind of combination jars, it comprises piston, two piston rods and clutch release slave cylinder, wherein: clutch release slave cylinder is made up of clutch release slave cylinder body, two pieces of identical slip damping blocks, adjustment screw rod and two end caps, clutch release slave cylinder body is cylindrical shape, have the groove of the through clutch release slave cylinder body of two identical symmetries in the axis of clutch release slave cylinder body inner circle wall, groove is isosceles trapezoid in the axis of clutch release slave cylinder body inner circle wall, the shape of slip damping block is identical with the shape of groove, the thickness of slip damping block is identical with the degree of depth of groove, the width on the narrow limit of slip damping block is equal with the width on the narrow limit of groove, the length of slip damping block is less than the length of groove, slip damping block has a tapped through hole at length direction, two pieces of slip damping blocks are arranged in two grooves of clutch release slave cylinder body respectively, the length of adjustment screw rod is greater than the length of slip damping block, one end of adjustment screw rod is arranged on an end cap in clutch release slave cylinder through the tapped through hole of slip damping block, the other end of adjustment screw rod stretches out in clutch release slave cylinder through the adjusting hole on another end cap, two end caps are separately fixed at the two ends of clutch release slave cylinder body, center hole is had at the center of two end caps, in center hole, be provided with seal arrangement and sliding bearing, also respectively there is an adjusting hole at the two ends of an end cap diameter wherein, are provided with seal arrangement and bearing in adjusting hole, piston is cylindrical, is wound with field coil, outside field coil, adds protective layer at the middle part of piston, and protective layer flushes with the periphery wall of piston, and the external diameter of piston is less than the internal diameter of clutch release slave cylinder and leaves the flow clearance of magnetic flow liquid, one end of two piston rods is separately fixed at the two ends of piston, the other end of two piston rods stretches out from the two ends in clutch release slave cylinder respectively by the seal arrangement at clutch release slave cylinder two ends and sliding bearing, a piston rod wherein has central through bore, and the lighting outlet of field coil leads to outside clutch release slave cylinder by the central through bore of piston rod, piston is arranged in clutch release slave cylinder, in clutch release slave cylinder, be filled with magnetic flow liquid.
After taking technique scheme, the working clearance between clutch release slave cylinder inner carrier and clutch release slave cylinder is made to change into a variable from a definite value, the two outstretch pole magnetorheological damper of combination jars of the present invention is not when adjusting the position of slip damping block, similar with the working condition of common two outstretch pole magnetorheological dampers, when being adjusted two pieces of slip damping blocks on clutch release slave cylinder inner circle wall by regulating lever when the diverse location of clutch release slave cylinder inner circle wall trapezoidal groove, the flow channel of four extra magnetic flow liquids can be formed in the axis of clutch release slave cylinder inner circle wall (that is: on the flow direction of magnetic flow liquid), therefore, by the gap width that adjustment clutch release slave cylinder slides between damping block and clutch release slave cylinder inner circle wall trapezoidal groove, make the magnetic flow liquid in clutch release slave cylinder not only can along the Clearance Flow between piston outer periphery wall and clutch release slave cylinder inner circle wall, but also can by the channel flow of clutch release slave cylinder sliding between damping block and clutch release slave cylinder inner circle wall trapezoidal groove, thereby increase the flow channel of magnetic flow liquid in clutch release slave cylinder, because clutch release slave cylinder body and slip damping block are made up of permeability magnetic material, so, the intensity of the electromagnetic field in the gap between piston outer periphery wall and clutch release slave cylinder inner circle wall is maximum, make the effect that the magnetic flow liquid along the flowing of clutch release slave cylinder inner circle wall axial passage also will be subject to piston and generates an electromagnetic field, the adjustment range of the work damping force of the two outstretch pole magnetorheological damper of combination jars is expanded.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention, is also the schematic diagram of slip damping block when home position.
Fig. 2 be Fig. 1 A-A to sectional view.
Fig. 3 be in Fig. 1 clutch release slave cylinder B-B to sectional view.
Fig. 4 is the schematic diagram of the present invention when working, and is also the schematic diagram after slip damping block leaves home position.
Fig. 5 be Fig. 4 A-A to sectional view.
Fig. 6 be in Fig. 4 clutch release slave cylinder B-B to sectional view.
Fig. 7 is slip damping block in the present invention on clutch release slave cylinder schematic diagram when adjusting to maximum position.
Fig. 8 be Fig. 7 A-A to sectional view.
Fig. 9 be in Fig. 7 clutch release slave cylinder B-B to sectional view.
Embodiment
Structure of the present invention is described in detail below in conjunction with accompanying drawing:
See Fig. 1, Fig. 2, Fig. 3, this is a kind of concrete structure of the present invention, the two outstretch pole magnetorheological damper of a kind of combination jars, it comprises piston 20, piston rod 24, piston rod 16 and clutch release slave cylinder 7, wherein: clutch release slave cylinder 7 is made up of the identical slip damping block 4 of clutch release slave cylinder body 7, two pieces, adjustment screw rod 2, end cap 25 and end cap 13, the clutch release slave cylinder body 7 be made up of permeability magnetic material is cylindrical shape, have the groove 3 of the through clutch release slave cylinder body 7 of two identical symmetries in the axis of clutch release slave cylinder body 7 inner circle wall, groove 3 is isosceles trapezoid in the axis of clutch release slave cylinder body 7 inner circle wall, the shape of the slip damping block 4 be made up of permeability magnetic material is identical with the shape of groove 3, the thickness of slip damping block 4 is identical with the degree of depth of groove 3, the width on the narrow limit of slip damping block 4 is equal with the width on the narrow limit of groove 3, the length of slip damping block 4 is less than the length of groove 3, slip damping block 4 has a tapped through hole 6 at length direction, two pieces of slip damping blocks 4 are arranged in two grooves 3 of clutch release slave cylinder body 7 respectively, the length of adjustment screw rod 2 is greater than the length of slip damping block 4, one end of adjustment screw rod 2 is arranged on the bearing 12 of the end cap 13 in clutch release slave cylinder 7 through the tapped through hole 6 of slip damping block 4, the other end of adjustment screw rod 2 stretches out in clutch release slave cylinder 7 through the adjusting hole 21 on end cap 25, end cap 13 and end cap 25 are separately fixed at the two ends of clutch release slave cylinder body 7, end cap 13 has center hole 29, seal arrangement 14 and sliding bearing 15 are installed in center hole 29, end cap 25 has center hole 28, seal arrangement 22 and sliding bearing 23 are installed in center hole 28, also respectively there is an adjusting hole 21 at the two ends of end cap 25 diameter, seal arrangement and bearing 1 are installed in adjusting hole 21, piston 20 is cylindrical, is wound with field coil 10 at the middle part of piston 20, adds protective layer 9 outside field coil 10, and protective layer 9 flushes with the periphery wall of piston 20, and the external diameter of piston 20 is less than the internal diameter of clutch release slave cylinder 7 and leaves the flow clearance 8 of magnetic flow liquid 5, one end of piston rod 24 and piston rod 16 is separately fixed at the two ends of piston 20, the other end of piston rod 24 and piston rod 16 is respectively by the seal arrangement 22 at clutch release slave cylinder 7 two ends and sliding bearing 23, seal arrangement 14 and sliding bearing 15, stretch out from the two ends in clutch release slave cylinder 7, wherein piston rod 16 has central through bore 17, and the lighting outlet 19 of field coil 10 is led to outside clutch release slave cylinder 7 by the central through bore 17 of the fairlead 11 on piston, piston rod 16 and is connected with control power supply 18, piston 20 is arranged in clutch release slave cylinder 7, is filled with magnetic flow liquid 5 in clutch release slave cylinder 7.
The two outstretch pole magnetorheological damper working condition of combination jars is such: see Fig. 1 to Fig. 6, when the two outstretch pole magnetorheological damper of combination jars of the present invention slip damping block 4 be in home position time (referring to: Fig. 1 to Fig. 3), the two outstretch pole magnetorheological damper of combination jars can adjust the damping force that it exports by controlling power supply 18 in good time, pair outstretch pole magnetorheological dampers of combination jars now and common two outstretch pole magnetorheological damper working conditions similar.
When the diverse location being regulated two pieces of slip damping blocks 4 on clutch release slave cylinder 7 by regulating lever 2 on clutch release slave cylinder 7 inner circle wall upper trapezoid groove 3, the passage 26(that can form the flowing of four magnetic flow liquids in the axis of the inner circle wall of clutch release slave cylinder 7 refers to: Fig. 4 to Fig. 6), therefore, by (gap) passage 26 width that adjustment clutch release slave cylinder 7 slides between damping block 4 and trapezoidal groove 3, magnetic flow liquid 5 in clutch release slave cylinder 7 not only can be flowed along the gap 8 between piston 20 periphery wall and clutch release slave cylinder 7 inner circle wall, but also can be flowed by the passage 26 clutch release slave cylinder 7 slided between damping block 4 and clutch release slave cylinder 7 inner circle wall upper trapezoid groove 3, thereby increase the flow channel of magnetic flow liquid 5 in clutch release slave cylinder 7, because clutch release slave cylinder body 7 and slip damping block 4 are made up of permeability magnetic material, so, the intensity of the electromagnetic field in the gap 8 between piston 20 periphery wall and clutch release slave cylinder 7 inner circle wall is maximum, make the effect that the magnetic flow liquid 5 along the flowing of clutch release slave cylinder 7 inner circle wall axial passage 26 also will be subject to piston 20 and generates an electromagnetic field, the adjustment range of the work damping force of the two outstretch pole magnetorheological damper of combination jars is expanded.
Claims (1)
1. the two outstretch pole magnetorheological damper of combination jars, it comprises piston, two piston rods and clutch release slave cylinder, it is characterized in that: described clutch release slave cylinder is made up of clutch release slave cylinder body, two pieces of identical slip damping blocks, adjustment screw rod and two end caps, clutch release slave cylinder body is cylindrical shape, have the groove of the through clutch release slave cylinder body of two identical symmetries in the axis of clutch release slave cylinder body inner circle wall, groove is isosceles trapezoid in the axis of clutch release slave cylinder body inner circle wall, the shape of slip damping block is identical with the shape of groove, the thickness of slip damping block is identical with the degree of depth of groove, the width on the narrow limit of slip damping block is equal with the width on the narrow limit of groove, the length of slip damping block is less than the length of groove, slip damping block has a tapped through hole at length direction, two pieces of slip damping blocks are arranged in two grooves of clutch release slave cylinder body respectively, the length of adjustment screw rod is greater than the length of slip damping block, one end of adjustment screw rod is arranged on an end cap in clutch release slave cylinder through the tapped through hole of slip damping block, the other end of adjustment screw rod stretches out in clutch release slave cylinder through the adjusting hole on another end cap, two end caps are separately fixed at the two ends of clutch release slave cylinder body, center hole is had at the center of two end caps, in center hole, be provided with seal arrangement and sliding bearing, also respectively there is an adjusting hole at the two ends of an end cap diameter wherein, are provided with seal arrangement and bearing in adjusting hole, described piston is cylindrical, is wound with field coil, outside field coil, adds protective layer at the middle part of piston, and protective layer flushes with the periphery wall of piston, and the external diameter of piston is less than the internal diameter of clutch release slave cylinder and leaves the flow clearance of magnetic flow liquid, one end of described two piston rods is separately fixed at the two ends of piston, the other end of two piston rods stretches out from the two ends in clutch release slave cylinder respectively by the seal arrangement at clutch release slave cylinder two ends and sliding bearing, a piston rod wherein has central through bore, and the lighting outlet of field coil is led to outside clutch release slave cylinder by the central through bore of piston rod and is connected with control power supply, described piston is arranged in clutch release slave cylinder, in clutch release slave cylinder, be filled with magnetic flow liquid, described clutch release slave cylinder body and slip damping block are made up of permeability magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310032827.6A CN103089904B (en) | 2013-01-29 | 2013-01-29 | Combined cylinder double rod-out magnetorheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310032827.6A CN103089904B (en) | 2013-01-29 | 2013-01-29 | Combined cylinder double rod-out magnetorheological damper |
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| Publication Number | Publication Date |
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| CN103089904A CN103089904A (en) | 2013-05-08 |
| CN103089904B true CN103089904B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310032827.6A Expired - Fee Related CN103089904B (en) | 2013-01-29 | 2013-01-29 | Combined cylinder double rod-out magnetorheological damper |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033526B (en) * | 2014-06-27 | 2015-09-30 | 谭晓婧 | The two outstretch pole magnetorheological damper of floating ring |
| CN105952834B (en) * | 2016-07-15 | 2018-01-30 | 北京机械设备研究所 | A kind of shearing valve type magneto-rheological damper and its parameter optimization method |
| CN112805489B (en) * | 2018-10-10 | 2023-06-20 | 南华大学 | Double-rod piezoelectric-magnetorheological composite intelligent damper and control method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203051609U (en) * | 2013-01-29 | 2013-07-10 | 谭晓婧 | Combined cylinder double-outlet-rod magneto-rheological damper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6648109B2 (en) * | 2001-09-13 | 2003-11-18 | Meritor Heavy Vehicle Technology, Llc | Adjustable shock absorber |
| CN1601139A (en) * | 2003-09-25 | 2005-03-30 | 欧进萍 | Internal air chamber type damper as a magnetic current variable flow body with dual out poles |
| US8141689B2 (en) * | 2007-10-09 | 2012-03-27 | Bwi Company Limited S.A. | Magnetorheological (MR) piston ring with lubricating grooves |
| CN201096163Y (en) * | 2007-10-29 | 2008-08-06 | 张家港市优希宏达机电厂 | Buffering device |
| CN202007856U (en) * | 2011-03-18 | 2011-10-12 | 谭晓婧 | Double-rod magnetic steel piston type magneto-rheological damper |
| CN102767589B (en) * | 2012-07-02 | 2014-07-16 | 江苏科技大学 | Magneto-rheological damper adjustable in damping channel height |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203051609U (en) * | 2013-01-29 | 2013-07-10 | 谭晓婧 | Combined cylinder double-outlet-rod magneto-rheological damper |
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