CN116201843A - Magneto-rheological damper - Google Patents

Magneto-rheological damper Download PDF

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Publication number
CN116201843A
CN116201843A CN202310241418.0A CN202310241418A CN116201843A CN 116201843 A CN116201843 A CN 116201843A CN 202310241418 A CN202310241418 A CN 202310241418A CN 116201843 A CN116201843 A CN 116201843A
Authority
CN
China
Prior art keywords
medium
piston
medium channel
cylinder
cooling
Prior art date
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.)
Pending
Application number
CN202310241418.0A
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Chinese (zh)
Inventor
芮筱亭
王昭华
朱炜
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Nanjing University of Science and Technology
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Nanjing University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing University of Science and Technology filed Critical Nanjing University of Science and Technology
Priority to CN202310241418.0A priority Critical patent/CN116201843A/en
Publication of CN116201843A publication Critical patent/CN116201843A/en
Pending legal-status Critical Current

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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
    • F16F9/532—Electrorheological [ER] 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
    • F16F9/3207—Constructional features
    • 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
    • F16F9/3207—Constructional features
    • F16F9/3214—Constructional features of pistons
    • 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
    • F16F9/3207—Constructional features
    • F16F9/3235—Constructional features of cylinders
    • 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
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • 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
    • F16F9/42—Cooling arrangements
    • 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
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/12—Fluid damping
    • 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
    • F16F2224/00—Materials; Material properties
    • F16F2224/04—Fluids
    • F16F2224/045—Fluids magnetorheological

Abstract

The invention discloses a magnetorheological shock absorber, wherein one end of a cylinder barrel is provided with a cylinder cover, the other end of the cylinder barrel is provided with a piston rod, one end of the piston rod stretches into the cylinder barrel, the interior of the magnetic piston is provided with a coil, meanwhile, the interior of the magnetic piston is provided with a first medium channel, the first medium channel penetrates through the electromagnetic piston, the first medium channel is arranged close to the coil, the interior of the electromagnetic piston is symmetrically provided with two second medium channels, one end of each second medium channel is L-shaped, the other end of each second medium channel is communicated with the first medium channel, and the other end of each second medium channel is communicated with the surface of the electromagnetic piston. The damper is provided with the plurality of medium channels near the coil, so that the length of the magnetorheological fluid passing through a magnetic field path is prolonged, the magnetorheological fluid can enter the first medium channel and the second medium channel during damping, the circulation quantity of the magnetorheological fluid is increased, and the damping force output value is improved by combining the modeling of the second medium channel.

Description

Magneto-rheological damper
Technical Field
The invention belongs to the field of magnetorheological shock absorption, and particularly relates to a magnetorheological shock absorber.
Background
The magneto-rheological shock absorber responds to road conditions and driving environments in real time by utilizing electromagnetic response based on input information from sensors for monitoring vehicle body and wheel movement. Magnetorheological fluid is a magnetic soft particle suspension, and when the fluid is injected into an electromagnetic coil in a piston of a shock absorber, the magnetic field of the coil changes the rheological property (or generates fluid resistance), so that a damping force with rapid response and strong controllability is generated under the condition of no electromechanical control valve and simple mechanical device. The magneto-rheological shock absorber has the characteristics of high damping force adjustable multiple, easy realization of computer variable damping real-time control, compact structure, small external input energy and the like, and is increasingly highly valued by the engineering world.
At present, a magnetorheological damper is gradually loaded on a suspension system of a middle-high-end vehicle, but the dead weight of the middle-high-end vehicle is heavier, the effective damping length of the traditional magnetorheological damper is limited, the number of turns of a coil is required to be increased to improve the magnetic field strength in order to improve the damping force output value, the whole volume of the damper is increased, and secondly, the piston of the traditional magnetorheological damper can cause the temperature inside the damper to be increased due to larger friction force in the reciprocating motion, so that the sealing performance of a sealing element can be reduced.
Disclosure of Invention
In view of the foregoing, an object of the present invention is to provide a magnetorheological damper.
The specific technical scheme for realizing the purpose of the invention is as follows:
a magneto-rheological damper comprises a cylinder barrel, a cylinder cover, a piston rod, a first mounting piece, a connecting seat, a second mounting piece and an electromagnetic piston;
one end of the cylinder barrel is provided with a cylinder cover, one side of the cylinder cover, which is not connected with the cylinder barrel, is provided with a first mounting piece, the other end of the cylinder barrel is provided with a piston rod, one end of the piston rod stretches into the cylinder barrel, the other end of the piston rod is provided with a connecting seat, the connecting seat is connected with a second mounting piece, and one end of the piston rod stretching into the cylinder barrel is provided with an electromagnetic piston;
further, a coil is arranged in the electromagnetic piston, a first medium channel is arranged in the electromagnetic piston, the first medium channel penetrates through the electromagnetic piston, and the first medium channel is arranged close to the coil.
Furthermore, two second medium channels are symmetrically arranged in the electromagnetic piston, one end of each second medium channel is communicated with the first medium channel, and the other end of each second medium channel is communicated with the surface of the electromagnetic piston.
Further, a plurality of coils are symmetrically arranged in the electromagnetic piston, a plurality of first medium channels are arranged in the electromagnetic piston, the first medium channels penetrate through the electromagnetic piston, and each first medium channel is close to the coil.
Further, a plurality of second medium channels are further arranged in the electromagnetic piston, wherein every two second medium channels are symmetrically arranged on the first medium channel, the second medium channels are L-shaped, one end of each second medium channel is communicated with the first medium channel, and the other end of each second medium channel is communicated with the surface of the electromagnetic piston.
Further, a floating piston is arranged in the cylinder barrel, the floating piston divides the inner part of the cylinder barrel into an upper cavity and a lower cavity, the lower cavity is filled with inert gas, the electromagnetic piston is arranged in the upper cavity, and magnetorheological fluid is filled in the upper cavity.
Further, the cooling sleeve is sleeved outside the cylinder barrel, the heat conducting sleeve is arranged outside the cooling sleeve, and the honeycomb cooling fins are arranged on the heat conducting sleeve.
Furthermore, a U-shaped pipe is arranged in the cooling sleeve, a cooling medium inlet and a cooling medium outlet are further arranged on the cooling sleeve, the cooling medium inlet and the cooling medium outlet are respectively connected with the U-shaped pipe, and cooling medium is filled in the U-shaped pipe.
Further, a sealing rubber ring and a sealing bearing are arranged at the joint of the piston rod and the cylinder barrel.
Further, the cooling sleeve and the heat conducting sleeve are made of aluminum alloy materials.
Compared with the prior art, the invention has the beneficial effects that:
(1) The magnetorheological damper is provided with the plurality of medium channels near the coil, so that the length of a path of the magnetorheological fluid passing through the magnetic field is prolonged, the magnetorheological fluid can enter the first medium channel and the second medium channel during damping, the circulation volume of the magnetorheological fluid is increased, and the damping force output value is improved by combining the modeling of the second medium channel;
(2) According to the magnetorheological damper disclosed by the invention, the cooling sleeve is arranged outside the cylinder body, and because the cooling sleeve is wrapped outside the cylinder barrel, when cooling liquid is injected into the U-shaped pipe through the cooling medium inlet, the cooling liquid flows through the whole U-shaped pipe, so that the temperature of the cylinder barrel is reduced, the over-high temperature in the cylinder barrel is avoided, and meanwhile, the heat can be quickly transferred by matching the heat conducting sleeve and the honeycomb cooling fin, so that the temperature of the cylinder barrel is led out, and the heat is emitted through the honeycomb cooling fin after the temperature is led out, so that the heat dissipation effect on the cylinder barrel is further improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a magnetorheological damper of the present invention.
FIG. 2 is a schematic cross-sectional view of a magnetorheological damper of the present invention.
FIG. 3 is a schematic view of a part of a magnetorheological damper of the present invention.
FIG. 4 is a schematic view of the heat conducting jacket and cooling jacket structure of the magnetorheological damper of the present invention.
FIG. 5 is a schematic view of a cooling jacket of the magnetorheological damper of the present invention.
Detailed Description
A magneto-rheological shock absorber comprises a cylinder barrel 1, a cylinder cover 2, a piston rod 3, a first mounting piece 6, a connecting seat 7, a second mounting piece 8 and an electromagnetic piston 9;
one end of the cylinder barrel 1 is provided with a cylinder cover 2, one side, which is not connected with the cylinder barrel 1, of the cylinder cover 2 is provided with a first mounting piece 6, the other end of the cylinder barrel 1 is provided with a piston rod 3, one end of the piston rod 3 stretches into the cylinder barrel 1, the other end of the piston rod is provided with a connecting seat 7, the connecting seat 7 is connected with a second mounting piece 8, and one end, which stretches into the cylinder barrel 1, of the piston rod 3 is provided with an electromagnetic piston 9;
the coil 10 is arranged in the electromagnetic piston 9, and meanwhile, a first medium channel 17 is arranged in the electromagnetic piston 9, the first medium channel 17 penetrates through the electromagnetic piston 9, and the first medium channel 17 is arranged close to the coil 10.
Two second medium channels 18 are symmetrically arranged in the electromagnetic piston 9, one end of each second medium channel 18 is communicated with the first medium channel 17, and the other end of each second medium channel 18 is communicated with the surface of the electromagnetic piston 9.
Further, a plurality of coils 10 are symmetrically arranged in the electromagnetic piston 9, a plurality of first medium channels 17 are arranged in the electromagnetic piston 9, the first medium channels 17 penetrate through the electromagnetic piston 9, and each first medium channel 17 is arranged close to the coil 10.
The electromagnetic piston 9 is further provided with a plurality of second medium channels 18 inside, wherein every two second medium channels 18 are symmetrically arranged on the first medium channel 17, the second medium channels 18 are L-shaped, one end of each second medium channel is communicated with the first medium channel 17, and the other end of each second medium channel is communicated with the surface of the electromagnetic piston 9.
The inside floating piston 11 that sets up of cylinder 1, floating piston 11 will be inside to be divided into cavity and lower cavity in the cylinder 1, inert gas is filled to the cavity down, electromagnetic piston 9 sets up in last cavity, fills magnetorheological fluid in the last cavity.
The coil 10 generates a magnetic field after being electrified, magnetorheological fluid around the electromagnetic piston 9 is influenced by the magnetic field, the characteristic of non-Newtonian fluid is shown, the magnetorheological fluid is converted from free flowing fluid to semi-solid or even solid in millisecond time, the strong controllable rheological characteristic is shown, when the piston rod 3 drives the electromagnetic piston 9 to move downwards, the electromagnetic piston 9 extrudes the magnetorheological fluid in the upper cavity, the magnetorheological fluid passes through the first medium channel 17 and the second medium channel 18 under pressure, so that damping force is generated, and the damping force is further increased due to the change of the vertical direction when the magnetorheological fluid passes through the second medium channel 18.
The cooling sleeve 12 is sleeved outside the cylinder barrel 1, the heat conducting sleeve 4 is arranged outside the cooling sleeve 12, and the honeycomb cooling fins 5 are arranged on the heat conducting sleeve 4.
The cooling sleeve 12 is internally provided with a U-shaped pipe 19, the cooling sleeve 12 is also provided with a cooling medium inlet 13 and a cooling medium outlet 14, the cooling medium inlet 13 and the cooling medium outlet 14 are respectively connected with the U-shaped pipe 19, and the U-shaped pipe 19 is internally filled with cooling medium.
The cooling sleeve 12 and the heat conducting sleeve 4 are made of aluminum alloy materials.
The cooling liquid injection pipe is connected with the cooling medium inlet 13, and the cooling sleeve 12 is made of aluminum alloy, so that heat conduction can be carried out by the cooling sleeve, after the cooling liquid is injected into the U-shaped path 19 through the cooling medium inlet 13, the cooling sleeve 12 can be cooled and radiated, and the arranged heat conduction sleeve 4 is made of aluminum alloy, so that heat on the cooling sleeve 12 can be led out again, the honeycomb cooling fins 5 are dispersed, and the honeycomb cooling fins 5 have a unique shape and have a large contact area with external air, so that the radiating efficiency can be effectively improved.
The sealing rubber ring 15 and the sealing bearing 16 are arranged at the joint of the piston rod 3 and the cylinder barrel 1, and the sealing rubber ring 15 and the sealing bearing 16 are used for guaranteeing the tightness between the piston rod 3 and the cylinder barrel 1 and preventing magnetorheological fluid from losing.
Examples
Referring to fig. 1 to 5, a magnetorheological damper includes a cylinder tube 1, a cylinder cover 2, a piston rod 3, a first mounting member 6, a connection seat 7, a second mounting member 8, and an electromagnetic piston 9;
one end of the cylinder barrel 1 is provided with a cylinder cover 2, one side, which is not connected with the cylinder barrel 1, of the cylinder cover 2 is provided with a first mounting piece 6, the other end of the cylinder barrel 1 is provided with a piston rod 3, one end of the piston rod 3 stretches into the cylinder barrel 1, the other end of the piston rod is provided with a connecting seat 7, the connecting seat 7 is connected with a second mounting piece 8, and one end, which stretches into the cylinder barrel 1, of the piston rod 3 is provided with an electromagnetic piston 9;
the first mounting piece 6 is used for being fixed with the lower arm of the vehicle, and the second mounting piece 8 is used for being fixed with the upper arm of the vehicle;
in this embodiment, a plurality of second medium channels 18 are further disposed inside the electromagnetic piston 9, where each two second medium channels 18 are symmetrically disposed on the first medium channel 17, the second medium channels 18 are L-shaped, one end of each second medium channel 18 is communicated with the first medium channel 17, and the other end is communicated with the surface of the electromagnetic piston 9, so that the first medium channel 17 and the second medium channels 18 are both communicated with the cylinder 1.
The inside floating piston 11 that sets up of cylinder 1, floating piston 11 will be inside to be divided into cavity and lower cavity in the cylinder 1, inert gas is filled to the cavity down, electromagnetic piston 9 sets up in last cavity, fills magnetorheological fluid in the last cavity.
The coil 10 generates a magnetic field after being electrified, magnetorheological fluid around the electromagnetic piston 9 is influenced by the magnetic field, the characteristic of non-Newtonian fluid is shown, the magnetorheological fluid is converted from free flowing fluid to semi-solid or even solid in millisecond time, the strong controllable rheological characteristic is shown, when the piston rod 3 drives the electromagnetic piston 9 to move downwards, the electromagnetic piston 9 extrudes the magnetorheological fluid in the upper cavity, the magnetorheological fluid passes through the first medium channel 17 and the second medium channel 18 under pressure, so that damping force is generated, and the damping force is further increased due to the change of the vertical direction when the magnetorheological fluid passes through the second medium channel 18.
The cooling sleeve 12 is sleeved outside the cylinder barrel 1, the heat conducting sleeve 4 is arranged outside the cooling sleeve 12, and the honeycomb cooling fins 5 are arranged on the heat conducting sleeve 4.
The cooling sleeve 12 is internally provided with a U-shaped pipe 19, the cooling sleeve 12 is also provided with a cooling medium inlet 13 and a cooling medium outlet 14, the cooling medium inlet 13 and the cooling medium outlet 14 are respectively connected with the U-shaped pipe 19, and the U-shaped pipe 19 is internally filled with cooling medium.
The cooling sleeve 12 and the heat conducting sleeve 4 are made of aluminum alloy materials.
The cooling liquid injection pipe is connected with the cooling medium inlet 13, and the cooling sleeve 12 is made of aluminum alloy, so that heat conduction can be carried out by the cooling sleeve, after the cooling liquid is injected into the U-shaped path 19 through the cooling medium inlet 13, the cooling sleeve 12 can be cooled and radiated, and the arranged heat conduction sleeve 4 is made of aluminum alloy, so that heat on the cooling sleeve 12 can be led out again, the honeycomb cooling fins 5 are dispersed, and the honeycomb cooling fins 5 have a unique shape and have a large contact area with external air, so that the radiating efficiency can be effectively improved.
The sealing rubber ring 15 and the sealing bearing 16 are arranged at the joint of the piston rod 3 and the cylinder barrel 1, and the sealing rubber ring 15 and the sealing bearing 16 are used for guaranteeing the tightness between the piston rod 3 and the cylinder barrel 1 and preventing magnetorheological fluid from losing.
The foregoing embodiments illustrate and describe the basic principles, principal features of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.

Claims (10)

1. The magnetorheological damper is characterized by comprising a cylinder barrel (1), a cylinder cover (2), a piston rod (3), a first mounting piece (6), a connecting seat (7), a second mounting piece (8) and an electromagnetic piston (9);
one end of cylinder (1) sets up cylinder cap (2), and one side that cylinder cap (2) is not connected with cylinder (1) sets up first installed part (6), and the other end of cylinder (1) sets up piston rod (3), and inside one end of piston rod (3) stretched into cylinder (1), the other end set up connecting seat (7), and connecting seat (7) are connected with second installed part (8), and one end that piston rod (3) stretched into cylinder (1) is inside sets up electromagnetic piston (9).
2. Magnetorheological damper according to claim 1, characterized in that the electromagnetic piston (9) is internally provided with a coil (10) while the electromagnetic piston (9) is internally provided with a first medium channel (17), the first medium channel (17) penetrating the electromagnetic piston (9), the first medium channel (17) being arranged close to the coil (10).
3. Magnetorheological damper according to claim 2, characterized in that the electromagnetic piston (9) is further symmetrically provided with two second medium channels (18), wherein the second medium channels (18) are L-shaped, one end of each second medium channel is communicated with the first medium channel (17), and the other end is communicated with the surface of the electromagnetic piston (9).
4. Magnetorheological damper according to claim 1, characterized in that the electromagnetic piston (9) is internally symmetrically provided with a plurality of coils (10) while the electromagnetic piston (9) is internally provided with a plurality of first medium channels (17), the first medium channels (17) penetrating the electromagnetic piston (9), each first medium channel (17) being arranged close to a coil (10).
5. The magnetorheological damper according to claim 4, wherein a plurality of second medium channels (18) are further arranged inside the electromagnetic piston (9), wherein each two second medium channels (18) are symmetrically arranged on the first medium channel (17), the second medium channels (18) are L-shaped, one end of each second medium channel is communicated with the first medium channel (17), and the other end of each second medium channel is communicated with the surface of the electromagnetic piston (9).
6. Magnetorheological damper according to claim 2 or 4, characterized in that the cylinder (1) is internally provided with a floating piston (11), the floating piston (11) divides the cylinder (1) into an upper cavity and a lower cavity, the lower cavity is filled with inert gas, the electromagnetic piston (9) is arranged in the upper cavity, and the upper cavity is filled with magnetorheological fluid.
7. Magnetorheological damper according to claim 1, characterized in that the cylinder (1) is externally sleeved with a cooling sleeve (12), the cooling sleeve (12) is externally provided with a heat conducting sleeve (4), and the heat conducting sleeve (4) is provided with a plurality of honeycomb cooling fins (5).
8. The magnetorheological damper according to claim 7, wherein a U-shaped tube (19) is disposed inside the cooling sleeve (12), the cooling sleeve (12) is further provided with a cooling medium inlet (13) and a cooling medium outlet (14), the cooling medium inlet (13) and the cooling medium outlet (14) are respectively connected with the U-shaped tube (19), and the cooling medium is filled inside the U-shaped tube (19).
9. Magnetorheological damper according to claim 1, characterized in that the connection of the piston rod (3) and the cylinder (1) is provided with a sealing rubber ring (15) and a sealing bearing (16).
10. Magnetorheological damper according to claim 7, characterized in that the cooling jacket (12) and the heat conducting jacket (4) are of aluminum alloy material.
CN202310241418.0A 2023-03-14 2023-03-14 Magneto-rheological damper Pending CN116201843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310241418.0A CN116201843A (en) 2023-03-14 2023-03-14 Magneto-rheological damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310241418.0A CN116201843A (en) 2023-03-14 2023-03-14 Magneto-rheological damper

Publications (1)

Publication Number Publication Date
CN116201843A true CN116201843A (en) 2023-06-02

Family

ID=86511094

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310241418.0A Pending CN116201843A (en) 2023-03-14 2023-03-14 Magneto-rheological damper

Country Status (1)

Country Link
CN (1) CN116201843A (en)

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