CN206802182U - A kind of new magnetorheological rotary damper - Google Patents
A kind of new magnetorheological rotary damper Download PDFInfo
- Publication number
- CN206802182U CN206802182U CN201720677948.XU CN201720677948U CN206802182U CN 206802182 U CN206802182 U CN 206802182U CN 201720677948 U CN201720677948 U CN 201720677948U CN 206802182 U CN206802182 U CN 206802182U
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- China
- Prior art keywords
- end cap
- winding frame
- coil winding
- rotating shaft
- machined
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a kind of new magnetorheological rotary damper, mainly it is made up of rotating shaft, coil winding frame, magnetorheological foam, cylinder barrel, end cap, slip ring, spring catch, bearing and magnet exciting coil etc..Coil winding frame both ends axle portion circumferential surface is stained with magnetorheological foam, and coil winding frame is rigidly connected by spring catch and rotary shaft.When the spindle is rotated, coil winding frame rotation is driven, now magnetic flow liquid is extracted out under magnetic fields from magnetorheological foam, and magnetic rheology effect is produced in damping clearance, so as to produce larger driving torque, hinders rotary shaft to rotate.The use of magnetorheological foam can reduce the magnetic flow liquid dosage of damper, and damper need not seal, and the accuracy of manufacture is high；Magnet exciting coil, which is wrapped on coil winding frame, causes the simple and compact for structure of damper, is easy to repair；Slip ring can make magnet exciting coil under rotation situation, ensure the static installation of power supply.The utility model rotates the vibration damping antidetonation of occasion particularly suitable for seat suspension etc..
Description
Technical field
It the utility model is related to a kind of MR damper, more particularly to a kind of new magnetorheological rotary damper.
Background technology
MR damper is a kind of new semi-active damper device based on magnetic flow liquid controllable characteristics, and the device can be with
Resistance is produced to motion, and for the energy of dissipation movement, fast response time, simple in construction, body are possessed in its working range
Product is small, is easily controlled and low power consumption and other advantages, is a kind of preferably vibration isolation, antishock device, in building, machinery, military project etc.
With wide application prospect.
Conventional springs damper is widely used in various vibration damping occasions.But as the improvement of people's living standards, to vibration damping
The requirement more and more higher of effect, the effectiveness in vibration suppression that spring-damper is played can not be gradually satisfied with by people.Magnetic flow liquid
Come out and promote the development of MR damper, its outstanding representation in terms of vibration damping obtains the favorable comment of people.Magnetic current variable resistance
Buddhist nun's device can be divided into linear MR damper and rotary type MR damper according to motion mode.Rotary type magnetic current variable resistance
Buddhist nun's device is devised initially as a kind of magnetorheological brakes.Compared to rotary type MR damper, linear magnetic current
Although variable damping device is using compared with wide but have some obvious shortcomings, if desired for larger installing space；It can not accommodate big
Impulse stroke, because damper bar has the danger of bending；The exposure on bar surface, bar is set to be injured by exterior object several
Rate becomes big, while can be damped the friction of device cylinder body interior sealing element；It is relatively more using magnetic flow liquid, add cost.
The appearance of rotary type MR damper solves above-mentioned linear MR damper and existed to a certain extent
The problem of.The general weight of rotary type MR damper is lighter, and design is compacter, is more suitable for applying and is requiring lightweight simultaneously
In device based on rotary motion.Therefore a kind of rotary type MR damper is designed more to have broad application prospects.
The content of the invention
In order to overcome problem present in background technology, the utility model proposes a kind of magnetorheological rotary damper of drum-type.
Moment of torsion caused by the magnetorheological rotary damper of drum-type in the utility model can effectively reduce the turning velocity of rotating shaft, and realization subtracts
Speed reduces vibration equivalent fruit.Rotating shaft installed in motor or other rotary power units is driven to rotate, and works as axis of rotation
When, drive coil winding frame rotation.Magnet exciting coil be powered produce magnetic field, now magnetic flow liquid under magnetic fields from magnetorheological bubble
Extracted out in foam, magnetic rheology effect is produced in damping clearance, produce larger driving torque, hinder rotary shaft to rotate, so as to realize
Control purpose.
Technical scheme includes used by the utility model solves its technical problem：Slip ring (1), rotating shaft (2), left end cap
(3), left spring pin (4), magnet exciting coil (5), coil winding frame (6), right spring catch (7), right end cap (8), right bearing (9), magnetic
Rheology foam (10), cylinder barrel (11) and left bearing (12)；Manhole is machined among rotating shaft (2), its manhole left end
It is machined with internal thread；Slip ring (1) right-hand member rotor of output shaft axle part is machined with external screw thread, with rotating shaft (2) left end internal thread hole screw thread
It is fixedly connected；Manhole is machined among coil winding frame (6), manhole inner surface is matched somebody with somebody with rotating shaft (2) outer surface interference
Close；Coil winding frame (6) left and right ends axle portion middle part is machined with vertical through hole, and passes through left spring pin (4) and the right side respectively
Spring catch (7) is rigidly connected with rotating shaft (2)；Toroidal cavity, magnet exciting coil (5) winding are machined among coil winding frame (6)
In a groove；Coil winding frame (6) left and right ends portion circumferential surface is stained with magnetorheological foam (10)；Magnetorheological foam (10) is outside
The annular damp channel that radial clearance is 1mm is provided between surface and cylinder barrel (11) inner surface；Left end cap (3) and right end cap
(8) it is rigidly connected respectively by screw and cylinder barrel (11)；Be machined among left end cap (3) and right end cap (8) flower-shape through hole and
One circular counter bore；Rotating shaft (2) outer surface coordinates with flower-shape through-hole inner surface gap；Left bearing (12) is heavy by left end cap (3)
Hole right side and coil winding frame (6) left axle shoulder axially position；Right bearing (9) passes through right end cap (8) counterbore left side and coil
Bobbin winder bracket (6) right axle shoulder axially position；Left bearing (12) outer ring is interference fitted with left end cap (3) counterbore inner surface, left bearing
(12) inner ring is interference fitted with rotating shaft (2) outer surface；Right bearing (9) outer ring is interference fitted with right end cap (8) counterbore inner surface, right
Bearing (9) inner ring is interference fitted with rotating shaft (2) outer surface.
The utility model has an advantageous effect in that compared with background technology：
（1）Compared with linear MR damper, the utility model small volume is in light weight, simple in construction, and design is tight
Gather, be easy to repair, save installing space.
（2）The use of the magnetorheological foam of the utility model saves the usage amount of magnetic flow liquid, has saved cost, and solve
The magnetic flow liquid leakage problem for MR damper generally existing of having determined, simplifies design structure, improves the accuracy of manufacture.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is the utility model left end cap left view.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples：
Fig. 1 is the utility model structure diagram, mainly includes slip ring 1, rotating shaft 2, left end cap 3, left spring pin 4, excitation
Coil 5, coil winding frame 6, right spring catch 7, right end cap 8, right bearing 9, magnetorheological foam 10, cylinder barrel 11 and left bearing 12.
Fig. 2 is the left diagram of the utility model left end cap, and flower-shape through hole and a circle are machined among damper left end cap 3
Counterbore.
Utility model works principle is as follows：
When rotating shaft 2 rotates, coil winding frame 6 is driven to rotate, power supply is powered by magnet exciting coil 5 of the slip ring 1 for rotation
Magnetic field is produced, now magnetic flow liquid is extracted out under magnetic fields from magnetorheological foam 10, is produced in damping clearance magnetorheological
Effect, the shear stress increase of magnetic flow liquid, produces larger driving torque, hinders rotating shaft 2 to rotate.
Claims (1)
- A kind of 1. new magnetorheological rotary damper, it is characterised in that including：Slip ring (1), rotating shaft (2), left end cap (3), left bullet Spring pin (4), magnet exciting coil (5), coil winding frame (6), right spring catch (7), right end cap (8), right bearing (9), magnetorheological foam (10), cylinder barrel (11) and left bearing (12)；Manhole is machined among rotating shaft (2), its manhole left end is machined with interior Screw thread；Slip ring (1) right-hand member rotor of output shaft axle part is machined with external screw thread, is screwed and is connected with rotating shaft (2) left end internal thread hole； Manhole is machined among coil winding frame (6), manhole inner surface is interference fitted with rotating shaft (2) outer surface；Coil around Coil holder (6) left and right ends axle portion middle part is machined with vertical through hole, and passes through left spring pin (4) and right spring catch (7) respectively It is rigidly connected with rotating shaft (2);Toroidal cavity is machined among coil winding frame (6), magnet exciting coil (5) is wound in a groove； Coil winding frame (6) left and right ends portion circumferential surface is stained with magnetorheological foam (10)；Magnetorheological foam (10) outer surface and cylinder The annular damp channel that radial clearance is 1mm is provided between cylinder (11) inner surface；Left end cap (3) and right end cap (8) lead to respectively Screw is crossed to be rigidly connected with cylinder barrel (11)；Flower-shape through hole is machined among left end cap (3) and right end cap (8) and a circle is sunk Hole；Rotating shaft (2) outer surface coordinates with flower-shape through-hole inner surface gap；Left bearing (12) by left end cap (3) counterbore right side and Coil winding frame (6) left axle shoulder axially position；Right bearing (9) is right by right end cap (8) counterbore left side and coil winding frame (6) Shaft shoulder axially position；Left bearing (12) outer ring is interference fitted with left end cap (3) counterbore inner surface, left bearing (12) inner ring and rotating shaft (2) outer surface is interference fitted；Right bearing (9) outer ring and right end cap (8) counterbore inner surface are interference fitted, right bearing (9) inner ring with Rotating shaft (2) outer surface is interference fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720677948.XU CN206802182U (en) | 2017-06-12 | 2017-06-12 | A kind of new magnetorheological rotary damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720677948.XU CN206802182U (en) | 2017-06-12 | 2017-06-12 | A kind of new magnetorheological rotary damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206802182U true CN206802182U (en) | 2017-12-26 |
Family
ID=60746978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720677948.XU Expired - Fee Related CN206802182U (en) | 2017-06-12 | 2017-06-12 | A kind of new magnetorheological rotary damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206802182U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021201787A1 (en) * | 2020-03-31 | 2021-10-07 | Koc Universitesi | A magnetorheological fluid damper for boring bars |
| CN114623187A (en) * | 2022-04-25 | 2022-06-14 | 重庆大学 | Industrial pipeline high-frequency vibration damper based on magnetorheological fabric |
-
2017
- 2017-06-12 CN CN201720677948.XU patent/CN206802182U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021201787A1 (en) * | 2020-03-31 | 2021-10-07 | Koc Universitesi | A magnetorheological fluid damper for boring bars |
| EP4110541A4 (en) * | 2020-03-31 | 2023-11-29 | KOC Universitesi | A magnetorheological fluid damper for boring bars |
| CN114623187A (en) * | 2022-04-25 | 2022-06-14 | 重庆大学 | Industrial pipeline high-frequency vibration damper based on magnetorheological fabric |
| CN114623187B (en) * | 2022-04-25 | 2024-06-04 | 重庆大学 | Industrial pipeline high-frequency vibration damper based on magnetorheological fabric |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20180612 |