CN110966340A - Electromagnetic hybrid labyrinth type magneto-rheological damper - Google Patents

Electromagnetic hybrid labyrinth type magneto-rheological damper Download PDF

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Publication number
CN110966340A
CN110966340A CN201911250864.8A CN201911250864A CN110966340A CN 110966340 A CN110966340 A CN 110966340A CN 201911250864 A CN201911250864 A CN 201911250864A CN 110966340 A CN110966340 A CN 110966340A
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CN
China
Prior art keywords
permanent magnet
ring
coil
working cylinder
ring groove
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Pending
Application number
CN201911250864.8A
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Chinese (zh)
Inventor
杨小龙
王梓骄
谢国进
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Guangxi University of Science and Technology
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Guangxi University of Science and Technology
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Application filed by Guangxi University of Science and Technology filed Critical Guangxi University of Science and Technology
Priority to CN201911250864.8A priority Critical patent/CN110966340A/en
Publication of CN110966340A publication Critical patent/CN110966340A/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
    • 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
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • F16F9/368—Sealings in pistons

Abstract

The invention aims to provide an electromagnetic mixed labyrinth type magnetorheological damper, which comprises a working cylinder, a piston rod, a piston body, magnetorheological fluid, a permanent magnet positioning ring, a permanent magnet ring I, a permanent magnet ring II, a coil I and a coil II, wherein the piston body is in a stepped shaft shape. The invention can solve the problems of smaller damping force and the like in the prior art, simultaneously realizes the reduction of the volume of the magnetorheological fluid for work, greatly improves the magnetorheological damping force, and has the advantages of less consumption of the magnetorheological fluid and remarkable magnetorheological effect.

Description

Electromagnetic hybrid labyrinth type magneto-rheological damper
Technical Field
The invention belongs to the technical field of magneto-rheological, and particularly relates to an electromagnetic hybrid labyrinth type magneto-rheological damper.
Background
The magneto-rheological damper is a novel damper which applies magneto-rheological fluid which is controllable fluid. Under different magnetic fields, the shear yield strength of the magnetorheological fluid is different, and the shear force forcing the magnetorheological fluid to flow is different, namely the damping force provided by the magnetorheological damper is variable. Therefore, the aim of adjusting the damping force of the magnetorheological shock absorber can be achieved by controlling the external magnetic field. Just because the magnetorheological damper has the important engineering application value, the extensive research on the magnetorheological damper in the industry is caused at present.
According to the flow mode of the magnetorheological fluid, the magnetorheological damper can be divided into a shear mode, a valve mode, an extrusion mode and a mixed working mode of two modes. Other magnetorheological dampers in the prior art also have various technical problems, such as low utilization rate of the magnetorheological fluid, fixed damping force adjusting range, incapability of flexible adjustment, failure of an electrified coil sometimes, incapability of ensuring stable work and the like.
Disclosure of Invention
The invention aims to provide an electromagnetic mixed labyrinth type magneto-rheological shock absorber which can solve the problems of smaller damping force and the like in the prior art, simultaneously realizes the reduction of the volume of the magneto-rheological fluid for work, greatly improves the magneto-rheological damping force, and has the advantages of less consumption of the magneto-rheological fluid and remarkable magneto-rheological effect.
The technical scheme of the invention is as follows:
the electromagnetic mixed type labyrinth type magneto-rheological damper comprises a working cylinder, a piston rod, a piston body, magneto-rheological fluid, a permanent magnet positioning ring, a permanent magnet ring I, a permanent magnet ring II, a coil I and a coil II;
the piston body is in a stepped shaft shape, the middle part of the piston body is a primary shaft, the radius of the primary shaft is the largest, more than one group of secondary shafts are sequentially arranged on the left side and the right side of the primary shaft, and the radius of each secondary shaft is sequentially reduced in the left side and the right side directions of the primary shaft;
piston rod holes are respectively formed in the left end wall and the right end wall of the working cylinder, and two ends of the piston rod respectively penetrate through the left end surface and the right end surface of the working cylinder through the piston holes and can slide relative to the working cylinder along the piston holes; the piston body is arranged in the working cylinder, the piston body is fixedly connected with the middle part of the piston rod, and the axis of the piston body is superposed with the axis of the piston rod;
the shape of the inner wall of the working cylinder corresponds to the structural design of the piston body and also comprises a primary ring groove corresponding to the secondary shaft and secondary ring grooves corresponding to all the secondary shafts;
a coil ring groove I is formed in the end face of each secondary shaft of the piston body, a coil I is arranged in the coil ring groove I, and the end face of the coil I is flush with the end face of the corresponding secondary shaft; the inner circle surface of each secondary ring groove of the working cylinder is provided with a permanent magnet ring groove I, a permanent magnet ring I is arranged in the permanent magnet ring groove I, and the inner circle surface of the permanent magnet ring I is flush with the inner circle surface of the corresponding secondary ring groove; gaps are reserved between the end surface and the outer circular surface of each secondary shaft on the piston body and the inner wall and the inner circular surface of each secondary ring groove of the working cylinder corresponding to the end surface and the outer circular surface;
a coil ring groove II is formed in the outer circumferential surface of the primary shaft, a coil II is arranged in the coil ring groove II, and the outer circumferential surface of the coil II is flush with the outer circumferential surface of the primary shaft; the inner circular surface of the primary annular groove of the working cylinder is provided with a permanent magnet positioning ring, and the left end surface and the right end surface of the permanent magnet positioning ring are in contact with the left inner wall and the right inner wall of the primary annular groove; the permanent magnet positioning ring is provided with a permanent magnet ring groove II, a permanent magnet ring II is arranged in the permanent magnet ring groove II and is arranged in the permanent magnet ring groove, and the inner circular surface of the permanent magnet ring II is flush with the inner circular surface of the permanent magnet positioning ring;
the excircle surface of the primary shaft corresponds to the inner circle surface of the permanent magnet positioning ring, and a gap is reserved between the excircle surface of the primary shaft and the inner circle surface of the permanent magnet positioning ring; gaps are reserved between the left end surface and the right end surface of the primary shaft and the left inner wall and the right inner wall of the primary ring groove; a gap is reserved between the outer circular surface of the coil and the inner circular surface of the permanent magnet positioning ring; the magnetorheological fluid is filled in each gap.
The inner circle surface of the permanent magnet positioning ring is provided with a plurality of groups of permanent magnet ring grooves II and permanent magnet rings II; the permanent magnet ring grooves II and the permanent magnet rings II are distributed at equal intervals; each permanent magnet ring II is an axial magnetizing permanent magnet, and the directions of magnetic lines of force of each permanent magnet ring II are the same.
The permanent magnet rings I are radial magnetizing permanent magnets, a primary shaft is used as a boundary, the directions of the magnetic lines of force of the permanent magnet rings I on the left side are the same, the directions of the magnetic lines of force of the permanent magnet rings I on the right side are the same, and the directions of the magnetic lines of force of the permanent magnet rings I on the left side are opposite to those of the permanent magnet rings I on the right side;
and the magnetic pole on the outer side of the permanent magnet ring I on the left side is opposite to the magnetic pole on the left side of the permanent magnet ring II, and the magnetic pole on the outer side of the permanent magnet ring I on the right side is opposite to the magnetic pole on the right side of the permanent magnet ring II.
The working cylinder and the piston body are both made of magnetic conductive materials.
The size of the clearance between the end surface and the outer circular surface of each secondary shaft on the piston body and the inner wall and the inner circular surface of each inner wall step of the working cylinder is 0.3-20 mm; the size of the gap between the outer circular surface of the primary shaft and the inner circular surface of the permanent magnet positioning ring is 0.3-20 mm; the size of the gap between the left end surface and the right end surface of the primary shaft and the left inner wall and the right inner wall of the primary ring groove is 0.3-20 mm.
And a lead groove is arranged in the piston rod, and electric wires are arranged in the lead groove and are respectively connected with the coil I, the coil II and an external power supply on the piston body.
And a sealing ring groove I is arranged on the inner circular surface of the piston hole, and a sealing ring I is arranged in the sealing ring groove I.
The working cylinder comprises two half cylinders which are symmetrical to each other, the two half cylinders are connected through the hexagon socket head cap screws, the joint of the two half cylinders is located at the first-level ring groove, the left end face and the right end face of the permanent magnet positioning ring are provided with a sealing ring groove II, and a sealing ring II is arranged in the sealing ring groove II.
And hanging rings for installation are arranged at two ends of the piston rod.
The middle part of the piston rod is a threaded rod, and the piston rod is in threaded connection with the piston body through the threaded rod.
According to the invention, the piston and the inner and outer walls of the shell are designed into a stepped labyrinth shape, and the stepped outer wall of the piston is matched with the stepped inner wall of the shell to form the axial damping channel and the radial damping channel, so that the length of the damping channel is increased.
The invention provides a permanent magnet magnetizing device, wherein axial and radial ring grooves are formed in the inner wall of a shell step, and axial and radial magnetizing permanent magnets are placed in the ring grooves. The outer wall of the piston step is provided with a ring groove, and an electromagnetic coil is wound along the horizontal central line direction of the piston rod, so that the shearing and extrusion combination is realized, and the permanent magnet and the coil are combined for magnetism.
According to the invention, a pair of series permanent magnet magnetic sources arranged on the inner wall of the working cylinder body are connected in series with the magnetic source generated by the electrified coil in the groove on the outer circular surface of the piston body, so that the magnetic field intensity in the magnetic circuit is increased, and the damping force of the damper is further improved. When the same coil is used and the current intensity is the same, the output force of the stepped magnetorheological damper is far larger than that of the common magnetorheological damper. The invention overcomes the problem of insufficient damping force of the existing magneto-rheological shock absorber.
The invention has longer damping channel, larger effective working area between the cylinder and the piston, greatly improves the utilization rate of the magnetorheological fluid, ensures that the magnetorheological fluid is not easy to precipitate and block, and greatly improves the damping force and the damping effect by combining the mixed working mode of shearing and extrusion.
The permanent magnet is added on the basis of the electromagnetic coil, so that the problem of small damping force when the coil is electrified and fails is solved.
Drawings
FIG. 1 is a schematic structural view of a magnetorheological damper according to the present invention;
the serial number designations and corresponding designations in the drawings are as follows:
1-working cylinder, 2-piston rod, 3-piston body, 4-magnetorheological fluid, 5-permanent magnet positioning ring, 6-permanent magnet ring I, 7-permanent magnet ring II, 8-coil I, 9-coil II, 10-primary shaft, 11-primary ring groove, 12-lead groove, 13-sealing ring I, 14-half cylinder, 15-hexagonal socket head screw, 16-sealing ring II, 17-lifting ring and 18-threaded rod.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, the electromagnetic hybrid labyrinth type magnetorheological damper comprises a working cylinder 1, a piston rod 2, a piston body 3, magnetorheological fluid 4, a permanent magnet positioning ring 5, a permanent magnet ring i 6, a permanent magnet ring ii 7, a coil i 8 and a coil ii 9;
the piston body 3 is in a stepped shaft shape, the middle part of the piston body is provided with a primary shaft 10, the radius of the primary shaft is the largest, more than one group of secondary shafts are sequentially arranged on the left side and the right side of the primary shaft 10, and the radius of each secondary shaft is sequentially reduced towards the left side and the right side of the primary shaft 10;
piston rod holes are respectively formed in the left end wall and the right end wall of the working cylinder 1, and two ends of the piston rod 2 respectively penetrate through the left end surface and the right end surface of the working cylinder 1 through the piston holes and can slide relative to the working cylinder 1 along the piston holes; the piston body 3 is arranged in the working cylinder 1, the piston body 3 is fixedly connected with the middle part of the piston rod 2, and the piston body 3 is superposed with the axis of the piston rod 2;
the shape of the inner wall of the working cylinder 1 corresponds to the structural design of the piston body 3, and the working cylinder also comprises a primary ring groove 11 corresponding to the secondary shaft 10 and secondary ring grooves corresponding to each secondary shaft;
a coil ring groove I is formed in the end face of each secondary shaft of the piston body 3, a coil I8 is arranged in the coil ring groove I, and the end face of the coil I8 is flush with the end face of the corresponding secondary shaft; the inner circular surface of each secondary circular groove of the working cylinder 1 is provided with a permanent magnet circular groove I, a permanent magnet ring I6 is arranged in the permanent magnet circular groove I, and the inner circular surface of the permanent magnet ring I6 is flush with the inner circular surface of the corresponding secondary circular groove; gaps are reserved between the end surfaces and the outer circular surfaces of the secondary shafts on the piston body 3 and the inner walls and the inner circular surfaces of the secondary ring grooves of the working cylinder 1 corresponding to the end surfaces and the outer circular surfaces, and magnetorheological fluid 4 is filled in the gaps;
a coil ring groove II is formed in the outer circumferential surface of the primary shaft 10, a coil II 9 is arranged in the coil ring groove II, and the outer circumferential surface of the coil II 9 is flush with the outer circumferential surface of the primary shaft 10; the inner circular surface of the primary annular groove 11 of the working cylinder 1 is provided with a permanent magnet positioning ring 5, and the left end surface and the right end surface of the permanent magnet positioning ring 5 are in contact with the left inner wall and the right inner wall of the primary annular groove 11; a permanent magnet ring groove II is formed in the permanent magnet positioning ring 5, a permanent magnet ring II 7 is arranged in the permanent magnet ring groove II and is arranged in the permanent magnet ring groove, and the inner circular surface of the permanent magnet ring II 7 is flush with the inner circular surface of the permanent magnet positioning ring 5;
the excircle surface of the primary shaft 10 corresponds to the inner circle surface of the permanent magnet positioning ring 5, and a gap is reserved between the excircle surface and the inner circle surface; gaps are reserved between the left end face and the right end face of the primary shaft 10 and the left inner wall and the right inner wall of the primary ring groove 11; a gap is reserved between the outer circular surface of the coil 9 and the inner circular surface of the permanent magnet positioning ring 5; the magnetorheological fluid 4 is filled in each gap.
A plurality of groups of permanent magnet ring grooves II and permanent magnet rings II 7 are arranged on the inner circular surface of the permanent magnet positioning ring 5; the permanent magnet ring grooves II and the permanent magnet rings II 7 of each group are distributed at equal intervals; each permanent magnet ring II 7 is an axial magnetizing permanent magnet, and the directions of magnetic lines of force of each permanent magnet ring II 7 are the same.
The permanent magnet rings I6 are radial magnetizing permanent magnets, a primary shaft 10 is used as a boundary, the directions of the magnetic lines of force of the permanent magnet rings I6 on the left side are the same, the directions of the magnetic lines of force of the permanent magnet rings I6 on the right side are the same, and the directions of the magnetic lines of force of the permanent magnet rings I6 on the left side are opposite to those of the permanent magnet rings I6 on the right side; the magnetic pole on the outer side of the permanent magnet ring I6 on the left side is opposite to the magnetic pole on the left side of the permanent magnet ring II 7, and the magnetic pole on the outer side of the permanent magnet ring I6 on the right side is opposite to the magnetic pole on the right side of the permanent magnet ring II 7.
The working cylinder 1 and the piston body 3 are both made of magnetic conductive materials.
The size of a gap between the end surface and the outer circular surface of each secondary shaft on the piston body 3 and the inner wall and the inner circular surface of each inner wall step of the working cylinder 1 is 0.3mm-20 mm; the size of a gap between the outer circular surface of the primary shaft 10 and the inner circular surface of the permanent magnet positioning ring 5 is 0.3-20 mm; the size of the gap between the left end surface and the right end surface of the primary shaft 10 and the left inner wall and the right inner wall of the primary ring groove 11 is 0.3mm-20 mm.
And a lead groove 12 is arranged in the piston rod 2, and electric wires are arranged in the lead groove 12 and are respectively connected with the coil I8, the coil II 9 and an external power supply on the piston body 3.
And a sealing ring groove I is formed in the inner circular surface of the piston hole, and a sealing ring I13 is arranged in the sealing ring groove I.
Working cylinder 1 constitute by two half jars 14 of mutual symmetry, connect through hexagon socket head cap screw 15 between two half jars 14, its junction is located one-level annular 11 department, permanent magnet holding ring 5 about be equipped with seal ring groove II on the terminal surface, be equipped with sealing washer II 16 in this seal ring groove II.
And hanging rings 17 for installation are arranged at two ends of the piston rod 2.
The middle part of the piston rod 2 is provided with a threaded rod 18, and the threaded rod 18 is in threaded connection with the piston body 3.

Claims (10)

1. The utility model provides an electromagnetism hybrid formula maze type magnetic current becomes shock absorber, includes working cylinder (1), piston rod (2), piston body (3), magnetorheological suspensions (4), permanent magnet holding ring (5), permanent magnet ring I (6), permanent magnet ring II (7), coil I (8), coil II (9), its characterized in that:
the piston body (3) is in a stepped shaft shape, the middle part of the piston body is provided with a primary shaft (10) with the largest radius, the left side and the right side of the primary shaft (10) are sequentially provided with more than one group of secondary shafts, and the radius of each secondary shaft is sequentially reduced towards the left side and the right side by the primary shaft (10);
piston rod holes are respectively formed in the left end wall and the right end wall of the working cylinder (1), and two ends of the piston rod (2) respectively penetrate through the left end surface and the right end surface of the working cylinder (1) through the piston holes and can slide relative to the working cylinder (1) along the piston holes; the piston body (3) is arranged in the working cylinder (1), the piston body (3) is fixedly connected with the middle part of the piston rod (2), and the axis of the piston body (3) is superposed with the axis of the piston rod (2);
the shape of the inner wall of the working cylinder (1) corresponds to the structural design of the piston body (3), and the working cylinder also comprises a primary ring groove (11) corresponding to the secondary shaft (10) and secondary ring grooves corresponding to all the secondary shafts;
a coil ring groove I is formed in the end face of each secondary shaft of the piston body (3), a coil I (8) is arranged in the coil ring groove I, and the end face of the coil I (8) is flush with the end face of the corresponding secondary shaft; the inner circle surface of each secondary ring groove of the working cylinder (1) is provided with a permanent magnet ring groove I, a permanent magnet ring I (6) is arranged in the permanent magnet ring groove I, and the inner circle surface of the permanent magnet ring I (6) is flush with the inner circle surface of the corresponding secondary ring groove; gaps are reserved between the end surface and the outer circular surface of each secondary shaft on the piston body (3) and the inner wall and the inner circular surface of each secondary ring groove of the working cylinder (1) corresponding to the end surface and the outer circular surface;
a coil ring groove II is formed in the outer circumferential surface of the primary shaft (10), a coil II (9) is arranged in the coil ring groove II, and the outer circumferential surface of the coil II (9) is flush with the outer circumferential surface of the primary shaft (10); the inner circular surface of the primary annular groove (11) of the working cylinder (1) is provided with a permanent magnet positioning ring (5), and the left end surface and the right end surface of the permanent magnet positioning ring (5) are in contact with the left inner wall and the right inner wall of the primary annular groove (11); a permanent magnet ring groove II is formed in the permanent magnet positioning ring (5), a permanent magnet ring II (7) is arranged in the permanent magnet ring groove II, and the inner circular surface of the permanent magnet ring II (7) is flush with the inner circular surface of the permanent magnet positioning ring (5);
the excircle surface of the primary shaft (10) corresponds to the inner circle surface of the permanent magnet positioning ring (5), and a gap is reserved between the excircle surface of the primary shaft and the inner circle surface of the permanent magnet positioning ring; gaps are reserved between the left end surface and the right end surface of the primary shaft (10) and the left inner wall and the right inner wall of the primary ring groove (11); a gap is reserved between the outer circular surface of the coil (9) and the inner circular surface of the permanent magnet positioning ring (5); the magnetorheological fluid (4) is filled in each gap.
2. The electromagnetic hybrid labyrinth magnetorheological damper of claim 1, wherein: a plurality of groups of permanent magnet ring grooves II and permanent magnet rings II (7) are arranged on the inner circular surface of the permanent magnet positioning ring (5); the permanent magnet ring grooves II and the permanent magnet rings II (7) of each group are distributed at equal intervals; each permanent magnet ring II (7) is an axial magnetizing permanent magnet, and the directions of magnetic lines of force of each permanent magnet ring II (7) are the same.
3. The electromagnetic hybrid labyrinth magnetorheological damper of claim 3, wherein:
the permanent magnet rings I (6) are all radial magnetizing permanent magnets, a primary shaft (10) is used as a boundary, the directions of the magnetic lines of force of the permanent magnet rings I (6) on the left side are the same, the directions of the magnetic lines of force of the permanent magnet rings I (6) on the right side are the same, and the directions of the magnetic lines of force of the permanent magnet rings I (6) on the left side are opposite to those of the permanent magnet rings I (6) on the right side;
the magnetic pole on the outer side of the permanent magnet ring I (6) on the left side is opposite to the magnetic pole on the left side of the permanent magnet ring II (7), and the magnetic pole on the outer side of the permanent magnet ring I (6) on the right side is opposite to the magnetic pole on the right side of the permanent magnet ring II (7).
4. The electromagnetic hybrid labyrinth magnetorheological damper of claim 1, wherein: the working cylinder (1) and the piston body (3) are both made of magnetic conductive materials.
5. The electromagnetic hybrid labyrinth magnetorheological damper of claim 1, wherein: the size of a gap between the end surface and the outer circular surface of each secondary shaft on the piston body (3) and the inner wall and the inner circular surface of each inner wall step of the working cylinder (1) is 0.3mm-20 mm; the size of a gap between the outer circular surface of the primary shaft (10) and the inner circular surface of the permanent magnet positioning ring (5) is 0.3-20 mm; the size of the gap between the left end surface and the right end surface of the primary shaft (10) and the left inner wall and the right inner wall of the primary ring groove (11) is 0.3mm-20 mm.
6. The electromagnetic hybrid labyrinth magnetorheological damper of claim 1, wherein: and a lead groove (12) is arranged in the piston rod (2), and an electric wire is arranged in the lead groove (12) and is respectively connected with a coil I (8), a coil II (9) and an external power supply on the piston body (3).
7. The electromagnetic hybrid labyrinth magnetorheological damper of claim 1, wherein: and a sealing ring groove I is arranged on the inner circular surface of the piston hole, and a sealing ring I (13) is arranged in the sealing ring groove I.
8. The electromagnetic hybrid labyrinth magnetorheological damper of claim 1, wherein: working cylinder (1) constitute by two half jars (14) of mutual symmetry, connect through hexagon socket head cap screw (15) between two half jars (14), its junction is located one-level annular (11) department, permanent magnet holding ring (5) about be equipped with seal ring groove II on the terminal surface, be equipped with seal ring II (16) in this seal ring groove II.
9. The electromagnetic hybrid labyrinth magnetorheological damper of claim 1, wherein: and hanging rings (17) for installation are arranged at two ends of the piston rod (2).
10. The electromagnetic hybrid labyrinth magnetorheological damper of claim 1, wherein: the middle part of the piston rod (2) is a threaded rod (18), and the piston rod is in threaded connection with the piston body (3) through the threaded rod (18).
CN201911250864.8A 2019-12-09 2019-12-09 Electromagnetic hybrid labyrinth type magneto-rheological damper Pending CN110966340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911250864.8A CN110966340A (en) 2019-12-09 2019-12-09 Electromagnetic hybrid labyrinth type magneto-rheological damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911250864.8A CN110966340A (en) 2019-12-09 2019-12-09 Electromagnetic hybrid labyrinth type magneto-rheological damper

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Publication Number Publication Date
CN110966340A true CN110966340A (en) 2020-04-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112923125A (en) * 2021-02-05 2021-06-08 广西科技大学 Mixed ring enhanced magnetorheological valve device
CN113007260A (en) * 2021-02-06 2021-06-22 广西科技大学 Bypass valve type step-type magnetorheological damper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112923125A (en) * 2021-02-05 2021-06-08 广西科技大学 Mixed ring enhanced magnetorheological valve device
CN112923125B (en) * 2021-02-05 2022-05-27 广西科技大学 Mixed ring enhanced magnetorheological valve device
CN113007260A (en) * 2021-02-06 2021-06-22 广西科技大学 Bypass valve type step-type magnetorheological damper

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