CN208474391U - A kind of externally-wound type MR damper of cylinder barrel positioning - Google Patents
A kind of externally-wound type MR damper of cylinder barrel positioning Download PDFInfo
- Publication number
- CN208474391U CN208474391U CN201820540220.7U CN201820540220U CN208474391U CN 208474391 U CN208474391 U CN 208474391U CN 201820540220 U CN201820540220 U CN 201820540220U CN 208474391 U CN208474391 U CN 208474391U
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- China
- Prior art keywords
- damper
- cylinder barrel
- piston head
- externally
- end cap
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Abstract
The utility model discloses a kind of externally-wound type MR dampers of cylinder barrel positioning, including damper cylinder barrel, the piston head being mounted on inside damper cylinder barrel and the piston rod being connected with piston head, the damper cylinder barrel left and right ends clearance fit connection damper left end cap and damper right end cap are distinguished by screw, damper inner wall of cylinder is equipped with inner cylinder body, the magnetic conduction inner sleeve for being equipped with magnetic shield between inner cylinder body and damper cylinder barrel and being connected on the inside of magnetic shield, winding slot is formed between magnetic conduction inner sleeve and magnetic shield, is wound with magnet exciting coil in winding slot；Magnet exciting coil is set between damper cylinder barrel and inner cylinder body in the utility model, magnet exciting coil externally-wound type is arranged and is replaced in coil around reduction inner cylinder body size, response is fast, it is compact-sized, it is small in size, facilitate work in the occasion of narrow space, the magnetorheological fluid aequum more expensive for price is less, and bump leveller manufacturing cost is made to decrease a little.
Description
Technical field
The utility model relates to a kind of MR dampers, more specifically, it relates to a kind of externally-wound type of cylinder barrel positioning
MR damper.
Background technique
MR damper is a kind of novel semi-active damper device based on magnetorheological fluid controllable characteristics, the damping device
Resistance can be generated to movement, and is used to the energy of dissipation movement；Possess in its working range fast response time, structure it is simple,
It is small in size, be easy to control and low power consumption and other advantages；It is a kind of ideal vibration isolation, antishock device；In the side such as building, machinery, military project
Mask has wide application prospects.
Traditional spring-damper is used for various vibration damping occasions, but the requirement with people to effectiveness in vibration suppression is increasingly
Height, the effectiveness in vibration suppression that spring-damper is played cannot be gradually satisfied with by people.The appearance of magnetorheological fluid promotes magnetorheological
The development of damper, the outstanding representation in terms of vibration damping obtain the favorable comment of people.When MR damper is applied to various
When occasion, every test data that when work measures is optimal damping device working performance, and research damper self-characteristic provides
Good foundation.When controlled device is vibrated, controller is according between the sensor controlled device main body detected and supporting body
Relative Vibration situation make corresponding analysis and decision, and generate a control voltage and act on the electric current of MR damper and drive
Dynamic device loads a driving current to magnet exciting coil by current driver, the magnetic field strength of magnet exciting coil is adjusted, thus in millisecond
The yield stress size for changing the magnetorheological fluid being located in damper damp channel in the grade time, reaches adjusting MR damper
The purpose of damping realizes the semi-active damper vibration damping vibrated to controlled device.It is controlled in the semi-active damper vibration damping of this closed loop
In system, an important output quantity is exactly the relative displacement between the cylinder barrel of MR damper and piston.
In existing half Active vibration-reducing system based on MR damper, due to the viscosity ratio of the magnetorheological fluid under no magnetic field
The viscosity of normal hydraulic oil is bigger, so even if no current input in the case where, MR damper can also apply one compared with
Hard damping force, it is lower for the perceptual sensitivity of vibration.And the excitation wire of traditional MR damper piston head winding
Circle, causes cylinder barrel volume larger, and response is fast, needs more magnetorheological fluids, while magnetorheological fluid is more expensive compared with normal hydraulic oil,
The manufacturing cost for increasing MR damper is unsuitable for work and uses in the occasion of narrow space.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of externally-wound type magnetic of cylinder barrel positioning
Rheological damper, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of externally-wound type MR damper of cylinder barrel positioning, including damper cylinder barrel, be mounted on inside damper cylinder barrel
Piston head and the piston rod that is connected with piston head, clearance fit is distinguished by screw in damper cylinder barrel left and right ends
Connection damper left end cap and damper right end cap, and be sealed by a seal ring, piston head is slidably arranged in damper cylinder
Cylinder is internal, and piston head is fastenedly connected by the screw thread head of lock screw and piston rod, and piston head surrounding is machined with circular through hole
And it is set as throttle orifice, throttle orifice is connected to the magnetorheological fluid cavity I and magnetorheological fluid cavity II at piston head both ends, is formed for damping
The axial fluid course that magnetorheological fluid passes through in device cylinder barrel, damper inner wall of cylinder are equipped with inner cylinder body, inner cylinder body and damper
The magnetic conduction inner sleeve for being equipped with magnetic shield between cylinder barrel and being connected on the inside of magnetic shield, forms between magnetic conduction inner sleeve and magnetic shield
Winding slot is wound with magnet exciting coil in winding slot.
Further, the piston rod left end, which passes through damper left end cap and is screwed, connects left lifting lug, damper left end
Lid middle part is machined with circular through hole, and piston rod and damper left end cap circular through hole internal surface gaps cooperate, and pass through sealing ring
It is sealed；It is screwed in the middle part of damper right end cap and connects right lifting lug.
Further, the magnetorheological fluid cavity I is set in the damper cylinder barrel on the left of piston head, magnetorheological fluid cavity II
It is set in the damper cylinder barrel on the right side of piston head, magnetorheological fluid is the electromagnetic liquid containing diameter in 3-10 μm of magnetic particle.
Further, buffering is installed in the damper cylinder barrel on the right side of piston head and stores power plate, it is rubber slab that buffering, which stores power plate,
Buffering, which stores, is set as hydraulic oil cavity in the damper cylinder barrel between power plate and damper left end cap, fill liquid in hydraulic oil cavity
Pressure oil is in closed hydraulic oil cavity.
Further, the lead of the magnet exciting coil is connected with the binding post on damper cylinder barrel side wall.
Further, the inner cylinder body is equipped with the limit outer lug of positioning magnetic conduction inner sleeve, positions in the limit of piston head
Protrusion and the limit card slot that piston head is oriented to.
Further, the piston head is No. 10 steel permeability magnetic materials, the magnetic line of force that piston head is embedded in permanent magnet and generates
Closed circuit is formed across piston head.
In conclusion the utility model has the advantages that compared with prior art
In piston head sliding, buffering stores power plate compression hydraulic oil and generates resistance obstruction piston head and piston rod movement, from
And provide more stable fixation uncontrollable damping force for damper；When magnet exciting coil is passed through electric current, by adjusting magnet exciting coil
Middle size of current can be changed the yield stress of magnetorheological fluid, reach required output damping force；By excitation wire in the utility model
Circle is set between damper cylinder barrel and inner cylinder body, and magnet exciting coil externally-wound type is arranged and is replaced in coil around reduction inner cylinder body ruler
Very little, response is fast, compact-sized, small in size, facilitates work needed for the occasion of narrow space, the magnetorheological fluid more expensive for price
It measures less, bump leveller manufacturing cost is made to decrease.
For the structure feature and effect for more clearly illustrating the utility model, come with reference to the accompanying drawing with specific embodiment pair
The utility model is described in detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the schematic cross-section of damper cylinder barrel in the utility model.
Fig. 3 is the structural schematic diagram that buffering stores power plate in the utility model.
Appended drawing reference: the left lifting lug of 1-, 2- piston rod, 3- damper left end cap, 4- screw, 5- binding post, 6- damper cylinder
Cylinder, 7- magnetic shield, 8- magnet exciting coil, 9- magnetic conduction inner sleeve, 10- inner cylinder body, 11- damper right end cap, 12- buffering store power plate,
The right lifting lug of 13-, 14- screw thread head, 15- lock screw, 16- piston head, 17- spring, 18- sealing ring, 19- magnetorheological fluid hold
Chamber I, 20- throttle orifice, 21- magnetorheological fluid cavity II, 22- hydraulic oil cavity, 23- limit outer lug, 24- limit card slot, 25- limit
Position internal projection.
Specific embodiment
The technical solution of the utility model is described further in the following with reference to the drawings and specific embodiments.
Referring to Fig. 1-3, a kind of externally-wound type MR damper of cylinder barrel positioning, including damper cylinder barrel 6, it is mounted on damping
Piston head 16 inside device cylinder barrel 6 and the piston rod 2 being connected with piston head 16,6 left and right ends of damper cylinder barrel are logical
It crosses screw 4 and distinguishes clearance fit connection damper left end cap 3 and damper right end cap 11, and be sealed by a seal ring, it is living
Chock plug 16 is slidably arranged in inside damper cylinder barrel 6, and piston head 16 is tight by the screw thread head 14 of lock screw 15 and piston rod 2
It is solidly connected, 2 left end of piston rod, which passes through damper left end cap 3 and is screwed, connects left lifting lug 1, adds in the middle part of damper left end cap 3
Work has circular through hole, and piston rod 2 and 3 circular through hole internal surface gaps of damper left end cap cooperate, and are carried out by sealing ring 18
Sealing；It is screwed in the middle part of damper right end cap 11 and connects right lifting lug 13.
16 surrounding of piston head is machined with circular through hole and is set as throttle orifice 20, and throttle orifice 20 is connected to 16 liang of piston head
The magnetorheological fluid cavity I 19 and magnetorheological fluid cavity II 21 at end form the axial direction passed through for magnetorheological fluid in damper cylinder barrel 6
Fluid course, specifically, magnetorheological fluid cavity I 19 is set in the damper cylinder barrel 6 in 16 left side of piston head, magnetorheological fluid holds
Chamber II 21 is set in the damper cylinder barrel 6 on 16 right side of piston head, and magnetorheological fluid is containing a large amount of diameters in 3-10 μm of magnetic particles
The electromagnetic liquid of son.
Buffering is installed in the damper cylinder barrel 6 on 16 right side of piston head and stores power plate 12, it is rubber slab that buffering, which stores power plate 12,
Buffering, which stores in the damper cylinder barrel 6 between power plate 12 and damper left end cap 3, is set as hydraulic oil cavity 22, hydraulic oil cavity 22
Interior filling hydraulic oil is in closed hydraulic oil cavity 22, and when piston head 16 slides, buffering stores 12 compression hydraulic oil of power plate and produces
Raw resistance hinders piston head 16 and piston rod 2 to move, to provide more stable fixation uncontrollable damping force for damper.
6 inner wall of damper cylinder barrel is equipped with inner cylinder body 10, and magnetic shield is equipped between inner cylinder body 10 and damper cylinder barrel 6
7 and it is connected to the magnetic conduction inner sleeve 9 of the inside of magnetic shield 7, forms winding slot, coiling between magnetic conduction inner sleeve 9 and magnetic shield 7
Magnet exciting coil 8 is wound in slot；The lead of magnet exciting coil 8 is connected with the binding post 5 on 6 side wall of damper cylinder barrel.
The inner cylinder body 10 is equipped with the limit outer lug 23 of positioning magnetic conduction inner sleeve 9, positions in the limit of piston head 16
Protrusion 25 and the limit card slot 24 that piston head 16 is oriented to.
Preferably, piston head 16 is No. 10 steel permeability magnetic materials, the magnetic line of force that piston head 16 is embedded in permanent magnet and generates
Closed circuit is formed across piston head 16.
The working principle of the utility model is:
When magnet exciting coil 8 is not passed through electric current, the magnetic line of force that permanent magnet generates passes through and perpendicular to mixing fluid course.When
When magnet exciting coil 8 is passed through electric current, magnet exciting coil 8 because the magnetic line of force that galvanomagnetic-effect generates pass through and perpendicular to mixing fluid course,
And double acting magnetic field is formed with permanent magnet.Due to magnetic fields, mixing magnetorheological fluid its viscosity at fluid course be will increase, and be bent
Take stress enhancing.Magnetorheological fluid flows through the mixing fluid course, the intermolecular power of this catenation need to be overcome, to increase
The viscous damping force of MR damper.By adjusting size of current in magnet exciting coil 8, the surrender of changeable magnetorheological fluid is answered
Power reaches required output damping force.
Magnet exciting coil 8 is set between damper cylinder barrel 6 and inner cylinder body 10 in the utility model, it will be outside magnet exciting coil 8
Wound setting replaces around 10 size of inner cylinder body is reduced in coil, and response is fast, compact-sized, small in size, facilitates work narrow in space
Small occasion, the magnetorheological fluid aequum more expensive for price is less, and bump leveller manufacturing cost is made to decrease.
Technical principle of the utility model has been described above with reference to specific embodiments, is only the preferred implementation of the utility model
Mode.The protection scope of the utility model is not limited merely to above-described embodiment, technology belonging to the idea of the present invention
Scheme belongs to the protection scope of the utility model.Those skilled in the art, which does not need to pay for creative labor, to be associated
To other specific embodiments of the utility model, these modes are fallen within the protection scope of the utility model.
Claims (7)
1. a kind of externally-wound type MR damper of cylinder barrel positioning, including damper cylinder barrel (6), it is mounted on damper cylinder barrel (6)
Internal piston head (16) and the piston rod (2) being connected with piston head (16), which is characterized in that the damper cylinder barrel
(6) left and right ends are by screw (4) difference clearance fit connection damper left end cap (3) and damper right end cap (11), and lead to
It crosses sealing ring to be sealed, piston head (16) is slidably arranged in damper cylinder barrel (6) inside, and piston head (16) passes through lock screw
(15) it is fastenedly connected with the screw thread head (14) of piston rod (2), piston head (16) surrounding is machined with circular through hole and is set as saving
Discharge orifice (20), throttle orifice (20) are connected to the magnetorheological fluid cavity I (19) and magnetorheological fluid cavity II (21) at piston head (16) both ends,
The axial fluid course passed through for damper cylinder barrel (6) interior magnetorheological fluid is formed, damper cylinder barrel (6) inner wall is equipped with inner cylinder body
(10), the magnetic conduction for being equipped with magnetic shield (7) between inner cylinder body (10) and damper cylinder barrel (6) and being connected on the inside of magnetic shield (7)
Inner sleeve (9) forms winding slot between magnetic conduction inner sleeve (9) and magnetic shield (7), magnet exciting coil (8) are wound in winding slot.
2. a kind of externally-wound type MR damper of cylinder barrel positioning according to claim 1, which is characterized in that the piston
Bar (2) left end passes through damper left end cap (3) and is screwed and connects left lifting lug (1), is machined in the middle part of damper left end cap (3)
Circular through hole, piston rod (2) and damper left end cap (3) circular through hole internal surface gaps cooperate, and by sealing ring (18) into
Row sealing；It is screwed in the middle part of damper right end cap (11) and connects right lifting lug (13).
3. a kind of externally-wound type MR damper of cylinder barrel positioning according to claim 1 or 2, which is characterized in that described
Magnetorheological fluid cavity I (19) is set to the damper cylinder barrel (6) on the left of piston head (16) Nei, magnetorheological fluid cavity II (21) setting
In damper cylinder barrel (6) on the right side of piston head (16), magnetorheological fluid is the electromagnetic liquid containing diameter in 3-10 μm of magnetic particle.
4. a kind of externally-wound type MR damper of cylinder barrel positioning according to claim 3, which is characterized in that in piston head
(16) buffering is installed in the damper cylinder barrel (6) on the right side of and stores power plate (12), it is rubber slab that buffering, which stores power plate (12), and buffering stores power
Hydraulic oil cavity (22), hydraulic oil cavity are set as in damper cylinder barrel (6) between plate (12) and damper left end cap (3)
(22) filling hydraulic oil is in closed hydraulic oil cavity (22) in.
5. a kind of externally-wound type MR damper of cylinder barrel positioning according to claim 1, which is characterized in that the excitation
The lead of coil (8) is connected with the binding post (5) on damper cylinder barrel (6) side wall.
6. a kind of externally-wound type MR damper of cylinder barrel positioning according to claim 1, which is characterized in that the inner casing
Body (10) is equipped with the limit outer lug (23) of positioning magnetic conduction inner sleeve (9), positions the limit internal projection (25) of piston head (16)
And to the limit card slot (24) that piston head (16) is oriented to.
7. a kind of externally-wound type MR damper of cylinder barrel positioning according to claim 1, which is characterized in that the piston
Head (16) is No. 10 steel permeability magnetic materials, and piston head (16) is embedded in permanent magnet and the magnetic line of force generated passes through piston head (16) shape
At closed circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820540220.7U CN208474391U (en) | 2018-04-17 | 2018-04-17 | A kind of externally-wound type MR damper of cylinder barrel positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820540220.7U CN208474391U (en) | 2018-04-17 | 2018-04-17 | A kind of externally-wound type MR damper of cylinder barrel positioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208474391U true CN208474391U (en) | 2019-02-05 |
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ID=65207283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820540220.7U Expired - Fee Related CN208474391U (en) | 2018-04-17 | 2018-04-17 | A kind of externally-wound type MR damper of cylinder barrel positioning |
Country Status (1)
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| CN (1) | CN208474391U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591343A (en) * | 2018-04-17 | 2018-09-28 | 安徽卓特信息技术有限公司 | A kind of externally-wound type MR damper of cylinder barrel positioning |
| CN110242697A (en) * | 2019-06-25 | 2019-09-17 | 奇瑞汽车股份有限公司 | A kind of magnetorheological TOPMOUNT structure of adjustable automotive suspension of rigidity |
| WO2023226085A1 (en) * | 2022-05-27 | 2023-11-30 | 深圳市朝上科技有限责任公司 | Magnetorheological damper having toothed flow channel |
-
2018
- 2018-04-17 CN CN201820540220.7U patent/CN208474391U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591343A (en) * | 2018-04-17 | 2018-09-28 | 安徽卓特信息技术有限公司 | A kind of externally-wound type MR damper of cylinder barrel positioning |
| CN110242697A (en) * | 2019-06-25 | 2019-09-17 | 奇瑞汽车股份有限公司 | A kind of magnetorheological TOPMOUNT structure of adjustable automotive suspension of rigidity |
| WO2023226085A1 (en) * | 2022-05-27 | 2023-11-30 | 深圳市朝上科技有限责任公司 | Magnetorheological damper having toothed flow channel |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 Termination date: 20200417 |
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| CF01 | Termination of patent right due to non-payment of annual fee |