CN106246797A - A kind of magnetic rheological liquid damper - Google Patents
A kind of magnetic rheological liquid damper Download PDFInfo
- Publication number
- CN106246797A CN106246797A CN201610724316.4A CN201610724316A CN106246797A CN 106246797 A CN106246797 A CN 106246797A CN 201610724316 A CN201610724316 A CN 201610724316A CN 106246797 A CN106246797 A CN 106246797A
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- Prior art keywords
- piston
- slide block
- working cylinder
- working
- magnetic rheological
- Prior art date
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- 239000007788 liquid Substances 0.000 title claims abstract description 39
- 238000007789 sealing Methods 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000005284 excitation Effects 0.000 claims 1
- 238000013016 damping Methods 0.000 abstract description 42
- 230000008859 change Effects 0.000 abstract description 20
- 230000004044 response Effects 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000003116 impacting effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 230000005672 electromagnetic field Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/3405—Throttling passages in or on piston body, e.g. slots
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
- F16F9/537—Magnetorheological [MR] fluid dampers specially adapted valves therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of magnetic rheological liquid damper, wherein piston is provided with the damp channel connecting two working chambers, the structure of damp channel is: be provided with chute and the slide block being slidably matched with it on piston, slide block can make moving along piston radial in chute, slide block is towards the end face of working cylinder inwall, and it is provided with gap between working cylinder inwall, makes two working chamber connections.Using technique scheme, control damp channel by the slide block in damper piston, the changes of magnetic field not only by magnetic flow liquid changes damping output, it is also possible to change damping output by the change of damp channel；The damping requirements under fiercely impacting can be solved well.Compared with prior art, the present invention has the advantages such as damping output area is wide, output response is fast, simple in construction, dependable performance, production cost are low.
Description
Technical field
The invention belongs to the technical field of damper of vehicle.More particularly it relates to an magnetorheological fluid damp
Device.
Background technology
Magnetic flow liquid is to be scattered in the carrier fluid that pcrmeability is relatively low by tiny soft magnetic particles, forms shear yield strength
The suspension liquid of controllable rheology characteristic can be had with externally-applied magnetic field change；Under the influence of a magnetic field, magnetic flow liquid can be at millisecond
Realize semi-solid reversible change by Newtonian fluid to Bingham in the level time, after removing magnetic field, ortho states can be recovered again.
The antivibrator using magnetic flow liquid to make have exert oneself big, volume is little, response is fast, simple in construction, damping continuously may be used
Adjust, be prone to be combined with computer, it is achieved the advantages such as Based Intelligent Control.
Traditional magnetic rheological liquid damper merely with magnetic flow liquid under the action of a magnetic field, the change of its damping characteristic, change
The damping output of mutative damp device.It is relatively big that its damping output responds the impact of controlled device response speed, is fiercely rushed at antivibrator
When hitting its response often exist slow, it is impossible to reach preferably to damp output.The solution of prior art is to be controlled by change
The response time of device processed solves delay of response problem.But, the electrical principles of controller itself determines which is merely capable of
Reduction lag time as far as possible, and development cost is relatively big, makes required precision higher.
Summary of the invention
The present invention provides a kind of magnetic rheological liquid damper, its objective is the damping damping preferably meeting under fierce impact
Demand.
To achieve these goals, the technical scheme that the present invention takes is:
The magnetic rheological liquid damper of the present invention, including working cylinder, piston and piston rod, working cylinder is separated by described piston
It is two working chambers, described working chamber is provided with magnetic flow liquid；Described piston is provided with the damping of two working chambers of connection and leads to
Road, the structure of described damp channel is: be provided with chute and the slide block being slidably matched with it, described cunning on described piston
Block can make moving along piston radial in described chute, described slide block towards the end face of described working cylinder inwall, with
It is provided with gap between described working cylinder inwall, makes described two working chamber connect.
Described working cylinder sets feed screw nut in the end that described piston rod stretches out, and described piston rod is by interior circulation
Formula ball helical gearing mechanism is formed with described feed screw nut and coordinates.
Described feed screw nut is fixed on upper end cover, and described upper end cover is fixing with described working cylinder to be connected.
Two described working chambers are respectively upper working chamber and lower working chamber；Described upper working chamber by described piston,
Working cylinder and interior sealing lid enclose and form；Described interior sealing lid is arranged between described upper end cover and piston；Under described
Working chamber is by described piston, working cylinder and is located at the bottom end cover of working cylinder end and encloses and form.
Described slide block, towards between the end face of described piston rod, and the piston only of described piston, is provided with reset
Spring, described back-moving spring is extension spring, and its two ends are connected with the end face of slide block and the inwall of piston only respectively.
Described chute and the quantity of slide block are four, uniform by the circumferencial direction of described piston.
It is provided with magnet exciting coil in described slide block.
Described piston rod stretches out the end of working cylinder and is provided with attachment means, and described upper attachment means is suspension ring knots
Structure, described suspension ring structure is provided with installing hole；Described suspension ring structure is connected with described piston rod by bearing.
Described bottom end cover is provided with lower connecting device.
The present invention uses technique scheme, controls damp channel by the slide block in damper piston, is possible not only to lead to
The changes of magnetic field crossing magnetic flow liquid changes damping output, it is also possible to change damping output by the change of damp channel；Can be very
Solve well the damping requirements under fiercely impacting.Compared with prior art, the present invention has that damping output area is wide, output response
The advantage such as hurry up, simple in construction, dependable performance, production cost are low.
Accompanying drawing explanation
In content shown in accompanying drawing and figure, labelling is briefly described as follows:
Fig. 1 is the magnetic rheological liquid damper overall structure schematic diagram that damp channel is variable；
Fig. 2 is the damping piston structural representation in Fig. 1；
Fig. 3 is the schematic top plan view of structure shown in Fig. 2；
Fig. 4 is that in Fig. 1, piston rod damps integrally-built partial enlarged drawing.
Figure is labeled as:
1, upper attachment means, 2, bearing, 3, piston rod, 4, feed screw nut, 5, upper end cover, 6, working cylinder, 7, interior seal lid,
8, magnetic flow liquid, 9, piston, 10, bottom end cover, 11, lower connecting device, 12, sealing ring, 13, lower working chamber, 14, damp channel,
15, upper working chamber, 16, wire, 91, piston only, 92, slide block, 93, magnet exciting coil, 94, back-moving spring.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, the detailed description of the invention of the present invention is made further details of
Illustrate, to help those skilled in the art that inventive concept, the technical scheme of the present invention are had more complete, accurate and deep reason
Solve.
As shown in Figures 1 to 4, it is the magnetic rheological liquid damper of the present invention, including working cylinder 6, piston 9 and be located at working cylinder
Slidably piston rod 3 in 6, piston rod 3 through epimere lid 5 and you seal lid 7.The lower end of piston rod 3 insert in working cylinder 6 with
Piston 9 connects；The outer round surface of described piston 9 is in close contact with working cylinder 6 inwall；Working cylinder 6 is separated by described piston 9
It is two working chambers, i.e. goes up working chamber 15 and lower working chamber 13.Described working chamber is filled with magnetic flow liquid 8.The present invention carries
Confession is the variable magnetic rheological liquid damper of a kind of damp channel, its can produce stable and preferably, quickly resistance can be produced
Buddhist nun exports response.
Working cylinder 6 is sealed by upper end cover 5, bottom end cover 10, interior sealing lid 7 and the sealing ring 12 being arranged on end cap.
In order to solve the problem of prior art existence and overcome its defect, it is achieved preferably meet subtracting under fierce impact
The goal of the invention of shake damping requirements, the technical scheme that the present invention takes is:
As shown in Figures 1 to 4, the magnetic rheological liquid damper of the present invention, described piston 9 is provided with and connects two working chambers
Damp channel 14, the structure of described damp channel 14 is: be provided with chute and the cunning being slidably matched with it on described piston 9
Block 92, described slide block 92 can make along piston 9 moving radially in described chute, and described slide block 92 is towards described work
Make to be provided with gap between the end face of cylinder 6 inwall, and described working cylinder 6 inwall, make described two working chamber connect.
Described piston 9 includes the piston only 91 of cylinder, and described slide block 92 is located in piston only 91, at piston
Can move linearly when body 91 rotates, regulate the aperture size of described damp channel 14.
Described damp channel 14 is located on the outer circumference surface of piston only 91；At the damp channel 14 of piston only 91
On lateral surface, it is provided with radially toward the internal chute extended of piston only 91, chute is provided with the damping that can move linearly
Plunger slide 92.
Damp channel 14 is to extend shape on the excircle of piston only 91 along the direction parallel with piston only 91 axis
Become, i.e. the outer circumference surface of piston only 91 has gap with the inwall of working cylinder 6 in the position of damp channel 14, remaining position
Still for being in close contact.
What the present invention used damps variable damp channel 14 device, and it changes not only by the change of magnetic flow liquid
Damping output, it is also possible to changed by the gap length of damp channel 14 and change damping output；And by damper piston 9
The aperture size of the damp channel 14 that slide block 92 controls, can solve the damping requirements under fierce impact.
Described working cylinder 6 sets feed screw nut 4 in the end that described piston rod 3 stretches out, and described piston rod 3 is by interior
Circulating ball helical gearing mechanism is formed with described feed screw nut 4 and coordinates.
Feed screw nut 4 and upper end cover 5 are fixedly mounted in working cylinder 6.Feed screw nut 4 is fixed on upper end cover 5.Described
Upper end cover 5 fixing with described working cylinder 6 be connected.Feed screw nut 4 is internal is provided with ball, and the outer surface of piston rod 3 is provided with one
The external screw thread that end is matched therewith.
The end of piston rod 3 is that opposed rotatable is connected with upper attachment means, it is ensured that the relative attachment means 1 of piston rod 3 can
Rotate.
When antivibrator bears external forces, working cylinder 6 drives feed screw nut 4 for linear motion, and feed screw nut 4 passes through
The external screw thread on piston rod 3 surface drives piston rod 3 (such as Fig. 3) for the helical movement.In order to ensure the smooth of helical rotation, need by
The thread pitch of piston rod 3 and feed screw nut 4 arranges relatively big, i.e. lead angle is the biggest.
Compared with prior art, the present invention is by controlling the rotation of piston rod, so that the mobile change damping of slide block
The size of path clearance；
It addition, this antivibrator is by damp channel size and the change of magnetorheological fluid damp characteristic, both combine, and increase
Damping output area；This antivibrator, when by foreign impacts, by the quick response of mechanism in piston, also can reach preferable
Damping output effect.
Two described working chambers are respectively upper working chamber 15 and lower working chamber 13；Described upper working chamber 15 is by described
Piston 9, working cylinder 6 and interior sealing lid 7 enclose and form；Described interior sealing lid 7 be arranged on described upper end cover 5 and piston 9 it
Between；Described lower working chamber 13 by described piston 9, working cylinder 6 and be located at the bottom end cover 10 of working cylinder 6 end enclose and
Become.
As shown in Figures 2 and 3, chute is provided with the resetting-mechanism making damping plunger slide 92 be contracted in chute, its tool
Body structure is:
Described slide block 92 towards between the end face of described piston rod 3, and the piston only 91 of described piston 9, if
Having a back-moving spring 94, described back-moving spring 94 is extension spring, its two ends respectively with in the end face of slide block 92 and piston only 91
Wall connects.
Namely: described resetting-mechanism includes the back-moving spring 94 being located in described chute, one end of back-moving spring 94 and institute
Stating damping plunger slide 92 to be connected, the other end is connected with the inwall of piston only 91.When damping changes, piston 9 is axial
Movement, piston rod 3 drives piston 9 to rotate by the effect of internal-circulation type ball helical gearing mechanism excessively, and slide block 92 is at centrifugal force
Effect under, be displaced outwardly along chute, make the aperture of damp channel 14 reduce, namely make the damping that piston 9 moves axially increase
Greatly, piston amount of axial movement reduces；Meanwhile, its rotary motion rotating speed reduces, and slide block 92 is inside under the effect of back-moving spring 94
Motion, makes the aperture of damp channel 14 increase, makes the deattenuation of liquid.
The quantity of described chute and slide block 92 is four, uniform by the circumferencial direction of described piston 9.
Owing to using four damp channel 14 structures so that the distribution of damping regulation is more uniform, more stable during work.
It is provided with magnet exciting coil 93 in described slide block 92, electromagnetic field can be produced.By controlled loading at magnet exciting coil 93
On size of current, control the size of magnetic field intensity, thus change the damping characteristic of magnetic flow liquid.
The damping characteristic of described magnetic flow liquid 8 is changed by the change of residing the produced magnetic field intensity of magnet exciting coil 93.Institute
The magnet exciting coil 93 stated is connected with the control power supply of damping controller by the wire 16 being located on piston 9 and piston rod 3, it is achieved
Regulate the purpose of its power supply size.Magnet exciting coil 93 produces electromagnetic field after foreign current accesses, and electromagnetic field effect is in working cylinder 6
On internal magnetic flow liquid 8, change the damping characteristic of magnetic flow liquid 8, thus control the damping output of antivibrator.
The end stretching out working cylinder 6 of described piston rod 3 is provided with attachment means 1, and described upper attachment means 1 is for hanging
Ring structure, described suspension ring structure is provided with installing hole；Described suspension ring structure is connected with described piston rod 3 by bearing 2.
Being provided with another attachment means i.e. lower connecting device 11 on bottom end cover 10, antivibrator is by piston rod 3 upper end
Lower connecting device 11 in upper attachment means 1 and bottom end cover 10 carries out installing to be fixed.
When antivibrator does not works, damping plunger slide 92 is contracted in chute under the effect of back-moving spring 94.Now
Damp channel 14 aperture is maximum.When antivibrator works, due to the effect of ball wire bar pair, piston rod 3 rotates, and produces centrifugal force
Making to damp plunger slide 92 being moved radially outward along piston 9, damp channel 14 aperture reduces.Meanwhile, at magnet exciting coil 93
Upper loading current, produces electromagnetic field and makes magnetic flow liquid 8 damping characteristic produce change.
The present invention by damp channel 14 with the self adaptation of external impacts size and the magnet exciting coil 93 control to magnetic flow liquid 8
System, expands the damping output area of antivibrator, accelerates the response speed of damping.
The present invention uses technique scheme, and it changes damping output not only by the change of magnetic flow liquid, also may be used
To change damping output by the change of damp channel, both are made to combine.This mechanism is by the slide block control in damper piston
Damp channel processed, can solve the damping requirements under fiercely impacting well.Having damping output area wide, output response is fast, knot
Structure is simple, dependable performance, the advantages such as production cost is low.Meanwhile, this antivibrator is when by foreign impacts, by mechanism in piston
Quick response, also can reach preferably to damp output effect.
Above in conjunction with accompanying drawing, the present invention is exemplarily described, it is clear that the present invention implements not by aforesaid way
Restriction, as long as have employed the method design of the present invention and the improvement of various unsubstantialities that technical scheme is carried out, or without changing
Enter and design and the technical scheme of the present invention are directly applied to other occasion, all within protection scope of the present invention.
Claims (9)
1. a magnetic rheological liquid damper, including working cylinder (6), piston (9) and piston rod (3), described piston (9) is by work
Cylinder (6) is divided into two working chambers, is provided with magnetic flow liquid (8) in described working chamber；It is characterized in that: described piston (9)
Being provided with the damp channel (14) connecting two working chambers, the structure of described damp channel (14) is: on described piston (9)
Being provided with chute and the slide block (92) being slidably matched with it, described slide block (92) can be made along piston (9) footpath in described chute
To motion, described slide block (92) towards the end face of described working cylinder (6) inwall, with described working cylinder (6) inwall it
Between be provided with gap, make described two working chamber connect.
2. according to the magnetic rheological liquid damper described in claim 1, it is characterised in that: described working cylinder (6) is in described work
The end that stopper rod (3) stretches out sets feed screw nut (4), described piston rod (3) by internal-circulation type ball helical gearing mechanism with
Described feed screw nut (4) is formed and coordinates.
3. according to the magnetic rheological liquid damper described in claim 2, it is characterised in that: described feed screw nut (4) is fixed on
On end cap (5), described upper end cover (5) is fixing with described working cylinder (6) to be connected.
4. according to the magnetic rheological liquid damper described in claim 3, it is characterised in that: two described working chambers are respectively upper work
Make chamber (15) and lower working chamber (13)；Described upper working chamber (15) is covered by described piston (9), working cylinder (6) and interior sealing
(7) enclose and form；Described interior sealing lid (7) is arranged between described upper end cover (5) and piston (9)；Described lower work
Chamber (13) is by described piston (9), working cylinder (6) and is located at the bottom end cover (10) of working cylinder (6) end and encloses and form.
5. according to the magnetic rheological liquid damper described in claim 1, it is characterised in that: described slide block (92) is towards described work
Between the end face of stopper rod (3), and the piston only (91) of described piston (9), it is provided with back-moving spring (94), described reset bullet
Spring (94) is extension spring, and its two ends are connected with the end face of slide block (92) and the inwall of piston only (91) respectively.
6. according to the magnetic rheological liquid damper described in claim 1, it is characterised in that: described chute and the quantity of slide block (92)
It is four, uniform by the circumferencial direction of described piston (9).
7. according to the magnetic rheological liquid damper described in claim 1, it is characterised in that: it is provided with excitation wire in described slide block (92)
Circle (93).
8. according to the magnetic rheological liquid damper described in claim 1, it is characterised in that: described piston rod (3) stretches out working cylinder
(6) end is provided with attachment means (1), and described upper attachment means (1) is suspension ring structure, and described suspension ring structure is provided with peace
Dress hole；Described suspension ring structure is connected with described piston rod (3) by bearing (2).
9. according to the magnetic rheological liquid damper described in claim 4, it is characterised in that: under being provided with on described bottom end cover (10)
Attachment means (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610724316.4A CN106246797B (en) | 2016-08-25 | 2016-08-25 | A kind of magnetic rheological liquid damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610724316.4A CN106246797B (en) | 2016-08-25 | 2016-08-25 | A kind of magnetic rheological liquid damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106246797A true CN106246797A (en) | 2016-12-21 |
| CN106246797B CN106246797B (en) | 2018-05-11 |
Family
ID=57596159
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610724316.4A Active CN106246797B (en) | 2016-08-25 | 2016-08-25 | A kind of magnetic rheological liquid damper |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435706A (en) * | 2017-08-29 | 2017-12-05 | 华中科技大学 | A kind of piston and the permanent magnet type magnetic current variable fluid damper of self-adaptive damping regulation |
| CN107972757A (en) * | 2017-11-27 | 2018-05-01 | 常州大学 | A kind of shock resistance becomes length damping machine device people's leg |
| CN108278320A (en) * | 2018-01-19 | 2018-07-13 | 东北大学 | A kind of big output method of MR damper Combined-operating mode and damper |
| CN108612216A (en) * | 2018-04-27 | 2018-10-02 | 南宁众创空间科技有限公司 | A kind of mechanical processing spring compression type damping device |
| CN109057065A (en) * | 2018-07-02 | 2018-12-21 | 浙江大学 | Inertia mass damper |
| CN109488718A (en) * | 2018-11-18 | 2019-03-19 | 刘山平 | A kind of new-energy automobile damping chassis |
| CN112164932A (en) * | 2020-09-21 | 2021-01-01 | 广州跃汇贸易有限公司 | Plug and socket for household dish washer for preventing mistaken pulling |
| CN112332169A (en) * | 2020-11-24 | 2021-02-05 | 李英艳 | Magnetorheological fluid-based socket for preventing mistaken pulling of electric power |
| CN113369968A (en) * | 2021-04-30 | 2021-09-10 | 西安交通大学 | Damping device and method for inhibiting cutting vibration of machine tool spindle and machine tool spindle |
| CN113847384A (en) * | 2021-09-15 | 2021-12-28 | 山东大学 | Combined type multidimensional vibration damping device with damping amplification function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107435706B (en) * | 2017-08-29 | 2019-04-12 | 华中科技大学 | The permanent magnet type magnetic current variable fluid damper that a kind of piston and self-adaptive damping are adjusted |
| CN107435706A (en) * | 2017-08-29 | 2017-12-05 | 华中科技大学 | A kind of piston and the permanent magnet type magnetic current variable fluid damper of self-adaptive damping regulation |
| CN107972757A (en) * | 2017-11-27 | 2018-05-01 | 常州大学 | A kind of shock resistance becomes length damping machine device people's leg |
| CN108278320A (en) * | 2018-01-19 | 2018-07-13 | 东北大学 | A kind of big output method of MR damper Combined-operating mode and damper |
| CN108278320B (en) * | 2018-01-19 | 2019-10-22 | 东北大学 | A kind of big power output method of MR damper Combined-operating mode and damper |
| CN108612216A (en) * | 2018-04-27 | 2018-10-02 | 南宁众创空间科技有限公司 | A kind of mechanical processing spring compression type damping device |
| CN109057065A (en) * | 2018-07-02 | 2018-12-21 | 浙江大学 | Inertia mass damper |
| CN109488718A (en) * | 2018-11-18 | 2019-03-19 | 刘山平 | A kind of new-energy automobile damping chassis |
| CN109488718B (en) * | 2018-11-18 | 2019-10-01 | 徐雪娇 | A kind of new-energy automobile damping chassis |
| CN112164932A (en) * | 2020-09-21 | 2021-01-01 | 广州跃汇贸易有限公司 | Plug and socket for household dish washer for preventing mistaken pulling |
| CN112332169A (en) * | 2020-11-24 | 2021-02-05 | 李英艳 | Magnetorheological fluid-based socket for preventing mistaken pulling of electric power |
| CN113369968A (en) * | 2021-04-30 | 2021-09-10 | 西安交通大学 | Damping device and method for inhibiting cutting vibration of machine tool spindle and machine tool spindle |
| CN113847384A (en) * | 2021-09-15 | 2021-12-28 | 山东大学 | Combined type multidimensional vibration damping device with damping amplification function |
| CN113847384B (en) * | 2021-09-15 | 2022-06-03 | 山东大学 | Combined type multidimensional vibration damping device with damping amplification function |
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| CN106246797B (en) | 2018-05-11 |
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Address after: 241000 No. 8 Building, Science and Technology Industrial Park, 717 Zhongshan South Road, Yijiang District, Wuhu City, Anhui Province Patentee after: Chery Commercial Vehicles (Anhui) Co., Ltd. Address before: 241009 No. 16 Changchun Road, Wuhu Economic and Technological Development Zone, Anhui Province Patentee before: CHERY COMMERCIAL VEHICLES (ANHUI) CO., LTD. |
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Effective date of registration: 20240417 Address after: 241000 No. 8, Changchun Road, Wuhu economic and Technological Development Zone, Anhui, China Patentee after: CHERY AUTOMOBILE Co.,Ltd. Country or region after: China Address before: 241000 Building 8, science and Technology Industrial Park, 717 Zhongshan South Road, Yijiang District, Wuhu City, Anhui Province Patentee before: Chery Commercial Vehicles (Anhui) Co., Ltd. Country or region before: China |