CN208951201U - A kind of MR damper - Google Patents
A kind of MR damper Download PDFInfo
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- CN208951201U CN208951201U CN201821650821.XU CN201821650821U CN208951201U CN 208951201 U CN208951201 U CN 208951201U CN 201821650821 U CN201821650821 U CN 201821650821U CN 208951201 U CN208951201 U CN 208951201U
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- bearing bracket
- end cap
- liquid injection
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Abstract
A kind of MR damper, including rotor, rotor are connected by key on transmission shaft, and drive end bearing bracket and rear end cap is respectively set in the front and back sides of rotor, and shell is arranged in the external of rotor, and drive end bearing bracket, rear end cap, shell are fixed together to form stator；Drive end bearing bracket and rear end cap are along transmission shafts to distribution；Preceding magnet exciting coil and rear magnet exciting coil are wound in drive end bearing bracket and rear end cap respectively, magnetism-isolating loop before being arranged between drive end bearing bracket and the leading flank of rotor, magnetism-isolating loop after being arranged between rear end cap and the trailing flank of rotor；At least three liquid injection holes are set on shell, and each liquid injection hole passes through seal cap sealing.MR damper chooses appropriate location and arranges at least three fill orifices in the utility model, on the basis of prior art scheme, optimize position and the quantity of fill orifice, it ensure that at least one fill orifice is also used as gas vent use in injection process, and the Position Design of fill orifice is reasonable.
Description
Technical field
The utility model relates to a kind of MR damper, especially a kind of adequacy big, filling with damping torque is wanted
Seek the revolving type magnetic rheologic damper of high feature.
Background technique
MR damper is divided from the structure type of rotor can be divided into disc type and two kinds of drum type brake, just from obtaining phase
For the damping torque of size, for disk structure damper using the end face of rotor as working face, radial dimension is bigger than normal；Cylinder
For formula structure using periphery as working face, axial dimension is bigger than normal.Working rotor area size is to influence MR damper performance
And the principal element of practicability, and live part accounts for smaller on common two kinds of rotor structure working faces, working face fails sufficiently
It utilizes, rotor inertia is larger, and it is less than normal to generate moment capacity.
Due to the material composition feature of magnetorheological fluid, i.e. much bigger than carrier fluid density of density of magnetic particles, damper is put
It sets a period of time, internal magnetorheological fluid will appear settlement issues, and magnetic-particle can be combined into bulk, magnetic after settling
Rheology performance degradation.MR damper magnetorheological fluid sedimentation problem is not solved effectively yet, equally constrains the practicality
And popularization and application, it is therefore necessary to solve the problems, such as its anti-settling.
Utility model content
The utility model provides that a kind of outer dimension is small, rotor inertia is small, generates that damping torque is larger, less energy-consuming, and has
There is the rotary magnetic rheological liquid damper of certain anti-settling ability.
The utility model uses following technical scheme:
A kind of MR damper, including rotor, rotor are connected by key on transmission shaft, the front and back sides difference of rotor
Drive end bearing bracket and rear end cap are set, and shell is arranged in the external of rotor, and drive end bearing bracket, rear end cap, shell are fixed together to form stator；Institute
Drive end bearing bracket and rear end cap are stated along transmission shafts to distribution；
Wind preceding magnet exciting coil and rear magnet exciting coil in drive end bearing bracket and rear end cap respectively, the leading flank of drive end bearing bracket and rotor it
Between be arranged before magnetism-isolating loop, between rear end cap and the trailing flank of rotor be arranged after magnetism-isolating loop；
At least three liquid injection holes are set on the shell, and each liquid injection hole passes through seal cap sealing.
Liquid injection hole in the top setting at least two of the shell, two liquid injection holes pass through seal cap sealing, the shell
Bottom at least one lower liquid injection hole is set, lower liquid injection hole passes through lower sealing cover sealing.
The rotor has the outer toroid and interior annular for forming axial symmetry section, passes through middle rib between outer toroid and interior annular
Plate connection, transmission shaft pass through interior annular.
The preceding magnet exciting coil and rear magnet exciting coil are wound in respectively in the drive end bearing bracket and rear end cap of rotor outer circle ring side.
The preceding magnetism-isolating loop and rear magnetism-isolating loop be located at the middle floor of rotor two sides or positioned at rotor interior annular and in
The two sides of floor, and there is set distance between the medial surface of the outer edge and rotor outer circle ring of preceding magnetism-isolating loop and rear magnetism-isolating loop.
Axial setting no less than one band of protrusions of the outer lateral edge transmission shaft of the rotor outer circle ring.
Sealing ring is provided between the side and drive end bearing bracket and rear end cap of the rotor outer circle ring.
The utility model has the beneficial effects that in (1) the utility model MR damper choose appropriate location arrange to
Few three fill orifices, optimize position and the quantity of fill orifice, ensure that in injection process that at least one fill orifice can be with
It is used as gas vent, and the Position Design of fill orifice is reasonable；(2) protrusion is set on rotor, it being capable of anti-settling.
Detailed description of the invention
Fig. 1 is the half sectional view of the utility model damper embodiment.
Fig. 2 is rotor schematic diagram.
Fig. 3 is schematic diagram when being perfused in the utility model method for filling embodiment from lower part fill orifice.
Fig. 4 is schematic diagram when being perfused in the utility model method for filling embodiment from top fill orifice.
In figure: 1- rotor；2- drive end bearing bracket；3- transmission shaft；Magnetism-isolating loop before 4-；Magnet exciting coil before 5-；6- sealing ring, 7- are soft
Pipe, 8- syringe；9- bearing cap；Magnet exciting coil after 10-；Magnetism-isolating loop after 11-；12- bearing；13- sealing ring；14- rear end cap；
15- shell；17- band of protrusions, the upper liquid injection hole I of 21-；22-top cover labyrinths I；The upper liquid injection hole II of 31-；32- top cover labyrinth II；41-
Lower liquid injection hole；42- lower sealing cover.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
The utility model provides a kind of MR damper, including rotor 1, and rotor 1 is connected by key on transmission shaft 3,
Drive end bearing bracket 2 and rear end 14 is respectively set in the front and back sides of rotor 1, and shell 15, drive end bearing bracket 2, rear end cap is arranged in the external of rotor 1
14, shell 15 is fixed together to form stator；Drive end bearing bracket 2 and rear end cap 14 are along the axial distribution of transmission shaft 3.
Preceding magnet exciting coil 5 and rear magnet exciting coil 10, drive end bearing bracket 2 and rotor 1 are wound in drive end bearing bracket 2 and rear end cap 14 respectively
Magnetism-isolating loop 4 before being arranged between leading flank, magnetism-isolating loop 11 after being arranged between rear end cap 14 and the trailing flank of rotor 1.
At least three liquid injection holes are set on shell 15, and each liquid injection hole passes through seal cap sealing.At least three liquid injection holes
Distribution are as follows: liquid injection hole I 21, upper liquid injection hole II 23 in the top setting at least two of shell 15, two upper liquid injection holes I 21, on
Liquid injection hole II 23 is sealed by top cover labyrinth I 22, top cover labyrinth II 32 respectively, at least one lower fluid injection is arranged in the bottom of shell 15
Hole 41, lower liquid injection hole 41 are sealed by lower sealing cover 42.
The rotor 1 of the utility model may be configured as the structure of outer toroid and interior annular, the medial surface and interior annular of outer toroid
Lateral surface between connected by middle floor, after transmission shaft 3 passes through interior annular, be keyed interior annular, cut open along transmission shaft 3 is axial
Face is set as principal section, and principal section is axial symmetry section, and forms two symmetrical works by interior annular, outer toroid and middle floor
Font section.It is the axial symmetry section of symmetry axis that i.e. rotor 1, which is with transmission shaft 3 along the axial section of transmission shaft 3, and forms axis pair
The unilateral section in section is referred to as i shaped cross section.
Along axial setting no less than one band of protrusions 15 of transmission shaft 3 outside the cylinder of 1 outer toroid of rotor, such as Fig. 2 institute
Show, is set as equally distributed three, band of protrusions cross sectional shape is that circular arc corner is trapezoidal, and height may be configured as 0.3mm, damping
When not in use for a long time, band of protrusions can stir magnetorheological fluid device in advance, have certain effect to damper performance is promoted
Fruit.
0 type sealing ring 6 is provided between the side and drive end bearing bracket 2 and rear end cap 14 of 1 outer toroid of rotor.Rotor 1 is with before
Bearing 12 and sealing ring 13 are provided on transmission shaft 3 between end cap 2 and rear end cap 14, sealing ring 13 is arranged in 12 side of bearing
Portion, Bearing outer are closed by bearing cap 9.
As shown in Figure 1, in the utility model, preceding magnet exciting coil 5 and rear magnet exciting coil 10 divide in order to reach preferable effect
It is not wound in the drive end bearing bracket 2 and rear end cap 14 of 1 outer toroid side of rotor, specifically, preceding magnetism-isolating loop 4 and rear magnetism-isolating loop 11
The two sides of two sides in the middle floor of rotor 1 or the interior annular positioned at rotor 1 and middle floor, the position close to transmission shaft 3, and
There is set distance, which can between the inside of the outer toroid in the outside and rotor 1 of preceding magnetism-isolating loop 4 and rear magnetism-isolating loop 11
According to needing to be arranged, so that the working region that rotor 1 does not wind magnetism-isolating loop and the magnetic line of force of magnet exciting coil generation can be made to pass through
Partial section has T-type structure, and damper is made to have multiple working regions.
Above-mentioned 1 section of rotor is axial symmetry section, and unilateral side is i shaped cross section, combines disc type and cylindrical structure
The design feature of damper, working region section have T-type structure, and damper is made to have multiple working regions, turn not increasing
In the case where sub-volume, working rotor area is increased effectively, and reduces the rotary inertia of rotor.Preceding magnetism-isolating loop is with after every magnetic
The structure and location arrangements of ring can optimize magnetic line of force trend, so that the magnetic line of force is concentrated through the biggish region of working radius, make work
The biggish region of damping radius is concentrated on as region, working region distribution is more reasonable, is conducive to the damping force for promoting damper
Square.Several circumferential band of protrusions are arranged in cylinder outside rotor outer circle ring, and damper long-time when not in use, can be right
Magnetorheological fluid is stirred in advance, influences have preferable effect to damper performance to magnetorheological fluid sedimentation problem is improved.
When the utility model is that the MR damper of above structure carries out the perfusion of magnetorheological fluid, using 8 He of syringe
Hose 7 implements perfusion, and when perfusion, 7 one end of hose connects syringe 8, and the note of sealing cover has been opened on other end connection damper
Fluid apertures, and syringe 8 is raised on damper height more than liquid injection hole, carry out fluid injection.
The following steps are included:
ST1: two above liquid injection holes I 21, the top cover labyrinth I 22 of upper liquid injection hole II 23, top cover labyrinth II 32 and one are opened
One end of hose 7 is connected lower liquid injection hole 41 by the lower sealing cover 42 of lower liquid injection hole 41, and the other end connection syringe 8 of hose 7 is opened
Begin to implement perfusion, until at least one of upper liquid injection hole I 21, upper liquid injection hole II 23 have magnetorheological fluid to start spilling, use
Lower sealing cover 42 seals lower liquid injection hole 41；
ST2: driving rotor 1 to rotate by rotation axis 3, and damper is discharged from two upper liquid injection holes I 21, upper liquid injection holes II 23
Intracavity gas makes liquid injection holes I 21 on two, magnetorheological fluid liquid level decline in upper liquid injection hole II 23, until its liquid level no longer drops
Until low or fall is located in setting range；
ST3: one in the upper liquid injection holes I 21 of the connection of hose 7 two, upper liquid injection hole II 23 continues to implement perfusion, turns simultaneously
Turn 1, until at least one of two upper liquid injection holes I 21, upper liquid injection holes II 23 have magnetorheological fluid to overflow again and without gas
Until body is discharged, two upper liquid injection holes I 21, upper liquid injection hole II 23 are sealed using top cover labyrinth I 22, top cover labyrinth II 32.
In the description of this specification, particular features, structures, materials, or characteristics can be real in any one or more
Applying can be combined in any suitable manner in example or example.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art the variation that can readily occur in or is replaced in the range of the utility model discloses
It changes, should all cover within the protection scope of the present utility model.
Claims (7)
1. a kind of MR damper, it is characterised in that:
Including rotor (1), rotor (1) is connected by key on transmission shaft (3), and front end is respectively set in the front and back sides of rotor (1)
(2) and rear end cap (14) are covered, shell (15) are arranged in the external of rotor (1), and drive end bearing bracket (2), rear end cap (14), shell (15) are fixed
Stator is formed together；The drive end bearing bracket (2) and rear end cap (14) are axially distributed along transmission shaft (3)；
Wind preceding magnet exciting coil (5) and rear magnet exciting coil (10) in drive end bearing bracket (2) and rear end cap (14) respectively, drive end bearing bracket (2) and
Magnetism-isolating loop (4) before being arranged between the leading flank of rotor (1), every magnetic after being arranged between rear end cap (14) and the trailing flank of rotor (1)
Ring (11)；
At least three liquid injection holes are set on the shell (15), each liquid injection hole passes through seal cap sealing.
2. a kind of MR damper according to claim 1, it is characterised in that: the top of the shell (15) is arranged
Liquid injection hole (21,23) at least two, two liquid injection holes (21,23) are sealed by sealing cover (22,32), the shell (15)
At least one lower liquid injection hole (41) are arranged in bottom, and lower liquid injection hole (41) is sealed by lower sealing cover (42).
3. a kind of MR damper according to claim 1, it is characterised in that: the rotor (1), which has, forms axis pair
The outer toroid and interior annular for claiming section, are connected between outer toroid and interior annular by middle floor, and transmission shaft (3) passes through interior annular.
4. a kind of MR damper according to claim 3, it is characterised in that: preceding magnet exciting coil (5) He Houli
Magnetic coil (10) is wound in respectively in the drive end bearing bracket (2) and rear end cap (14) of rotor (1) outer toroid side.
5. a kind of MR damper according to claim 3, it is characterised in that: the preceding magnetism-isolating loop (4) and after every magnetic
Ring (11) is located at the two sides of the middle floor of rotor (1) or is located at the interior annular of rotor (1) and the two sides of middle floor, and preceding every magnetic
There is set distance between the medial surface of the outer edge and rotor (1) outer toroid of ring (4) and rear magnetism-isolating loop (11).
6. a kind of MR damper according to claim 3, it is characterised in that: the outside of rotor (1) outer toroid
Along axial setting no less than one band of protrusions (17) of transmission shaft (3).
7. a kind of MR damper according to claim 1, it is characterised in that: the side of rotor (1) outer toroid
Sealing ring (6) are provided between drive end bearing bracket (2) and rear end cap (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821650821.XU CN208951201U (en) | 2018-10-11 | 2018-10-11 | A kind of MR damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821650821.XU CN208951201U (en) | 2018-10-11 | 2018-10-11 | A kind of MR damper |
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| Publication Number | Publication Date |
|---|---|
| CN208951201U true CN208951201U (en) | 2019-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821650821.XU Active CN208951201U (en) | 2018-10-11 | 2018-10-11 | A kind of MR damper |
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| CN (1) | CN208951201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980260A (en) * | 2018-10-11 | 2018-12-11 | 中国船舶重工集团公司第七�三研究所 | A kind of MR damper and magnetorheological fluid method for filling |
-
2018
- 2018-10-11 CN CN201821650821.XU patent/CN208951201U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980260A (en) * | 2018-10-11 | 2018-12-11 | 中国船舶重工集团公司第七�三研究所 | A kind of MR damper and magnetorheological fluid method for filling |
| CN108980260B (en) * | 2018-10-11 | 2024-04-02 | 中国船舶重工集团公司第七一三研究所 | Magnetorheological damper and magnetorheological fluid filling method |
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