CN110966337A - Bidirectional multi-piston hybrid magnetorheological damper - Google Patents
Bidirectional multi-piston hybrid magnetorheological damper Download PDFInfo
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- CN110966337A CN110966337A CN201911251095.3A CN201911251095A CN110966337A CN 110966337 A CN110966337 A CN 110966337A CN 201911251095 A CN201911251095 A CN 201911251095A CN 110966337 A CN110966337 A CN 110966337A
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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
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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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
- F16F9/3207—Constructional features
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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
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
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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
- F16F9/3207—Constructional features
- F16F9/3221—Constructional features of piston rods
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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
- F16F9/535—Magnetorheological [MR] fluid dampers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention aims to provide a bidirectional multi-piston hybrid magnetorheological damper, which comprises a working cylinder, a piston rod I, a piston rod II, an electromagnetic piston I, an electromagnetic piston II, a floating piston, magnetorheological fluid, a coil, a permanent magnet ring, a spring I and a spring II, wherein the piston rod I is connected with the piston rod II; the electromagnetic piston I, the floating piston and the electromagnetic piston II are sequentially arranged in the working cylinder from left to right, and magnetorheological fluid is filled in the working cylinder. The invention effectively increases the damping force of the magneto-rheological shock absorber and improves the reliability and stability of the work of the magneto-rheological damping device.
Description
Technical Field
The invention belongs to the technical field of magneto-rheological, and particularly relates to a bidirectional multi-piston hybrid magneto-rheological damper.
Background
The damping medium of the hydraulic cylinder inside the damping controllable device is made of magneto-rheological material and mainly formed by mixing soft magnetic particles with micron-sized size, a base body and a stabilizer.
The existing magneto-rheological shock absorber usually adopts a single-piston structure, has the defects of small adjustable range of damping force and short piston stroke, directly influences the performance of the shock absorber and seriously restricts the application range of the magneto-rheological shock absorber.
Disclosure of Invention
The invention aims to provide a bidirectional multi-piston hybrid magnetorheological damper, which can overcome the defects of the prior art, effectively increase the damping force of the magnetorheological damper and improve the reliability and stability of the work of a magnetorheological damping device.
The technical scheme of the invention is as follows:
the bidirectional multi-piston hybrid magnetorheological damper comprises a working cylinder, a piston rod I, a piston rod II, an electromagnetic piston I, an electromagnetic piston II, a floating piston, magnetorheological fluid, a coil, a permanent magnet ring, a spring I and a spring II;
the electromagnetic piston I, the floating piston and the electromagnetic piston II are sequentially arranged in the working cylinder from left to right, and magnetorheological fluid is filled in the working cylinder;
the electromagnetic piston I is fixedly connected with a piston rod I, and the front end of the piston rod I extends out of the working cylinder from the left end of the working cylinder; the electromagnetic piston II is fixedly connected with a piston rod II, and the front end of the piston rod II extends out of the working cylinder from the right end of the working cylinder; a spring I is arranged between the left end face of the floating piston and the right end face of the electromagnetic piston I, and a spring II is arranged between the right end face of the floating piston and the left end face of the electromagnetic piston II;
the outer circular surfaces of the electromagnetic piston I and the electromagnetic piston II are respectively provided with a coil ring groove, and a coil is arranged in the coil ring groove; the outer circular surface of the floating piston is provided with an annular groove, a permanent magnet ring is arranged in the annular groove, and the outer circular surface of the permanent magnet ring is flush with the outer circular surface of the floating piston.
The bidirectional multi-piston hybrid magnetorheological damper further comprises a magnetic conduction sleeve and magnetic conduction sleeve end covers, wherein the magnetic conduction sleeve is sleeved on the inner wall of the working cylinder and extends to the left side and the right side of the working cylinder, two ends of the magnetic conduction sleeve are sealed through the magnetic conduction sleeve end covers, and the magnetic conduction sleeve end covers are positioned on the inner walls of openings at two ends of the working cylinder; the magnetorheological fluid, the electromagnetic piston I, the electromagnetic piston II and the floating piston are all arranged in the magnetic conduction sleeve; the piston rod I and the piston rod II pass through the piston rod hole on the end cover of the magnetic sleeve and then penetrate out of the working cylinder; gaps are reserved between the outer circular surfaces of the electromagnetic piston I and the electromagnetic piston II and the inner wall of the magnetic sleeve; and a gap is reserved between the outer circular surface of the coil and the inner wall of the magnetic sleeve.
The two ends of the inner wall of the magnetic conduction sleeve are provided with piston rod guide rings, guide holes are formed in the piston rod guide rings, and the piston rod I and the piston rod II respectively penetrate through the piston rod guide rings through the guide holes in one end.
The size of the clearance between the outer circular surface of the electromagnetic piston I, the electromagnetic piston II and the floating piston and the inner wall of the magnetic sleeve is 0.3mm-20 mm.
The working cylinder comprises a cylinder body and an end cover; the two end covers are fixedly arranged at two ends of the cylinder body through hexagonal socket head screws I respectively and contact and press the end covers of the magnetic conduction sleeves at two ends of the magnetic conduction sleeves; piston rod holes are respectively arranged on the two end covers, and the piston rod I and the piston rod II respectively pass through the end covers through the piston rod holes on the end cover at one end; the inner wall of the piston rod hole on the end cover is provided with a sealing ring groove I, and a sealing ring is arranged in the sealing ring groove I.
The working cylinder and the floating piston are made of non-magnetic materials; the magnetic conduction sleeve, the magnetic conduction sleeve end cover, the electromagnetic piston I and the electromagnetic piston II are made of magnetic conduction materials.
Grooves are respectively arranged in the middle of the left end surface and the right end surface of the floating piston; the tail end of the piston rod I penetrates through the right end face of the electromagnetic piston I, and a nut I is arranged on the piston rod I for fixing; the tail end of the piston rod II penetrates through the left end face of the electromagnetic piston II, and a nut II is arranged on the piston rod II for fixing; the grooves on the left end surface and the right end surface of the floating piston respectively correspond to the tail ends of the piston rod I and the piston rod II; spring I, spring II be equipped with two sets ofly respectively, two sets of springs I locate the both sides of the recess of the left end face of floating piston respectively, two sets of springs II locate the both sides of the recess of the right-hand member face of floating piston respectively.
The bottom of the groove of the left end face and the right end face of the floating piston is provided with a rubber pad I, and the tail ends of the piston rod I and the piston rod II are respectively provided with a rubber pad II.
And the front ends of the piston rod I and the piston rod II are respectively provided with a lifting ring.
And lead grooves are respectively arranged in the piston rod I and the piston rod II, and electric wires are arranged in the lead grooves and are respectively connected with coils on the electromagnetic piston I and the electromagnetic piston II and an external power supply.
One side of the annular groove on the floating piston extends to the end face of the side of the floating piston, a magnetic conduction ring I, a permanent magnet ring and a magnetic conduction ring II are sequentially installed on the annular groove from inside to outside, the two ends of the permanent magnet ring are respectively contacted with the magnetic conduction ring I and the magnetic conduction ring II, the outer end face of the magnetic conduction ring II is flush with the end face of the side of the floating piston, a floating piston end cover is arranged on the floating piston of the side, and the floating piston end cover is fixedly installed on the floating piston through a hexagonal socket head cap screw II to encapsulate the magnetic conduction ring I, the permanent magnet ring and the magnetic conduction ring II on the annular groove.
The left electromagnetic piston and the right electromagnetic piston are connected with the piston rod through the left electromagnetic piston and the right electromagnetic piston, grooves are formed in the outer circular surfaces of the left electromagnetic piston and the right electromagnetic piston, coils are wound in the grooves, and the left electromagnetic piston and the right electromagnetic piston are respectively connected with the floating piston in the middle through springs to play roles in buffering and increasing working displacement. Meanwhile, a groove is formed in the outer circular surface of the floating piston, and a permanent magnet and a magnetic conduction ring are placed in the groove, so that the double-rod hybrid magneto-rheological damper structure is realized.
The invention adopts a double-rod three-piston structure, greatly improves the working displacement of the piston rod, greatly improves the damping force, and improves the minimum damping force under the condition of power failure by adopting a permanent magnet structure of the floating piston.
The design of the magnetic conduction sleeve and the non-magnetic conduction cylinder body prevents the interference of an external magnetic field on a magnetic circuit in the cylinder body, and improves the magnetic shielding performance of the structure.
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-a working cylinder, 2-a piston rod I, 3-a piston rod II, 4-an electromagnetic piston I, 5-an electromagnetic piston II, 6-a floating piston, 7-magnetorheological fluid, 8-a coil, 9-a permanent magnet ring, 10-a spring I, 11-a spring II, 12-a magnetic sleeve, 13-a magnetic sleeve end cover, 14-a groove, 15-a rubber pad I, 16-a rubber pad II, 17-a cylinder body, 18-an end cover, 19-a sealing ring, 20-a lifting ring, 21-a lead-wire groove, 22-a nut I, 23-a nut II; 24-hexagonal socket head cap screws I, 25-piston rod guide rings, 26-magnetic conduction rings I, 27-magnetic conduction rings II, 28-floating piston end covers and 29-hexagonal socket head cap screws II.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, the bidirectional multi-piston hybrid magnetorheological damper comprises a working cylinder 1, a piston rod i 2, a piston rod ii 3, an electromagnetic piston i 4, an electromagnetic piston ii 5, a floating piston 6, magnetorheological fluid 7, a coil 8, a permanent magnet ring 9, a spring i 10 and a spring ii 11;
the electromagnetic piston I4, the floating piston 6 and the electromagnetic piston II 5 are sequentially arranged in the working cylinder 1 from left to right, and magnetorheological fluid 7 is filled in the working cylinder 1;
the electromagnetic piston I4 is fixedly connected with the piston rod I2, and the front end of the piston rod I2 extends out of the working cylinder 1 from the left end of the working cylinder 1; the electromagnetic piston II 5 is fixedly connected with the piston rod II 3, and the front end of the piston rod II 3 extends out of the working cylinder 1 from the right end of the working cylinder 1; a spring I10 is arranged between the left end face of the floating piston 6 and the right end face of the electromagnetic piston I4, and a spring II 11 is arranged between the right end face of the floating piston 6 and the left end face of the electromagnetic piston II 5;
the outer circular surfaces of the electromagnetic piston I4 and the electromagnetic piston II 5 are respectively provided with a coil ring groove, and a coil 8 is arranged in each coil ring groove; an annular groove is formed in the outer circular surface of the floating piston 6, a permanent magnet ring 9 is arranged in the annular groove, and the outer circular surface of the permanent magnet ring 9 is flush with the outer circular surface of the floating piston 6.
The bidirectional multi-piston hybrid magnetorheological damper further comprises a magnetic conduction sleeve 12 and magnetic conduction sleeve end covers 13, wherein the magnetic conduction sleeve 12 is sleeved on the inner wall of the working cylinder 1 and extends to the left side and the right side of the working cylinder 1, two ends of the magnetic conduction sleeve 12 are sealed through the magnetic conduction sleeve end covers 13, and the magnetic conduction sleeve end covers 13 are positioned on the inner walls of openings at two ends of the working cylinder 1; the magnetorheological fluid 7, the electromagnetic piston I4, the electromagnetic piston II 5 and the floating piston 6 are all arranged in the magnetic conductive sleeve 12; the piston rod I2 and the piston rod II 3 firstly pass through a piston rod hole on the end cover 13 of the magnetic conduction sleeve and then penetrate out of the working cylinder 1; gaps are reserved between the outer circular surfaces of the electromagnetic piston I4 and the electromagnetic piston II 5 and the inner wall of the magnetic sleeve 12; and a gap is reserved between the outer circular surface of the coil 8 and the inner wall of the magnetic sleeve 12.
The two ends of the inner wall of the magnetic conduction sleeve 10 are provided with piston rod guide rings 25, the piston rod guide rings 25 are provided with guide holes, and the piston rod I2 and the piston rod II 3 respectively penetrate through the piston rod guide rings 25 through the guide holes at one end.
The size of the clearance between the outer circular surfaces of the electromagnetic piston I4, the electromagnetic piston II 5 and the floating piston 6 and the inner wall of the magnetic sleeve 12 is 0.3mm-20 mm.
The working cylinder 1 comprises a cylinder body 17 and an end cover 18; the two end covers 18 are fixedly arranged at two ends of the cylinder body 17 through hexagonal socket head screws I24 respectively and contact and press the magnetic conduction sleeve end covers 13 at two ends of the magnetic conduction sleeve 12; piston rod holes are respectively formed in the two end covers 18, and the piston rod I2 and the piston rod II 3 respectively penetrate through the end covers 18 through the piston rod holes in the end covers 18 at one ends; the inner wall of the piston rod hole on the end cover 18 is provided with a sealing ring groove I, and a sealing ring 19 is arranged in the sealing ring groove I.
The working cylinder 1 and the floating piston 6 are made of non-magnetic materials; the magnetic conduction sleeve 12, the magnetic conduction sleeve end cover 13, the electromagnetic piston I4 and the electromagnetic piston II 5 are made of magnetic conduction materials.
The middle parts of the left end surface and the right end surface of the floating piston 6 are respectively provided with a groove 14; the tail end of the piston rod I2 penetrates through the right end face of the electromagnetic piston I4, and a nut I22 is arranged on the piston rod I2 for fixing; the tail end of the piston rod II 3 penetrates through the left end face of the electromagnetic piston II 5, and a nut II 23 is arranged on the piston rod II for fixing; the grooves 14 on the left end surface and the right end surface of the floating piston 6 respectively correspond to the tail ends of the piston rod I2 and the piston rod II 3; spring I10, spring II 11 be equipped with two sets ofly respectively, two sets of springs I10 are located the both sides of the recess 14 of the left end face of floating piston 6 respectively, two sets of springs II 11 are located the both sides of the recess 14 of the right end face of floating piston 6 respectively.
The bottom of the groove 14 of the left end face and the right end face of the floating piston 6 is provided with a rubber pad I15, and the tail ends of the piston rod I2 and the piston rod II 3 are respectively provided with a rubber pad II 16.
And hoisting rings 20 are respectively arranged at the front ends of the piston rod I2 and the piston rod II 3.
And lead grooves 21 are respectively arranged in the piston rod I2 and the piston rod II 3, and electric wires are arranged in the lead grooves 21 and are respectively connected with the coils 8 on the electromagnetic pistons I4 and II 5 and an external power supply.
One side of the annular groove on the floating piston 6 extends to the end face of the side of the floating piston 6, a magnetic conduction ring I26, a permanent magnet ring 9 and a magnetic conduction ring II 27 are sequentially arranged on the annular groove from inside to outside, two ends of the permanent magnet ring 9 are respectively contacted with the magnetic conduction ring I26 and the magnetic conduction ring II 27, the outer end face of the magnetic conduction ring II 27 is flush with the end face of the side of the floating piston 6, a floating piston end cover 28 is arranged on the floating piston 6 of the side, the floating piston end cover 28 is fixedly arranged on the floating piston 6 through a hexagonal cylindrical head screw II 29, and the magnetic conduction ring I26, the permanent magnet ring 9 and the magnetic conduction ring II 27 are packaged on the annular groove.
Claims (10)
1. The utility model provides a two-way many pistons hybrid magnetic current becomes shock absorber, includes working cylinder (1), piston rod I (2), piston rod II (3), electromagnetic piston I (4), electromagnetic piston II (5), floating piston (6), magnetorheological suspensions (7), coil (8), permanent magnet ring (9), spring I (10), spring II (11), its characterized in that:
the electromagnetic piston I (4), the floating piston (6) and the electromagnetic piston II (5) are sequentially arranged in the working cylinder (1) from left to right, and magnetorheological fluid (7) is filled in the working cylinder (1);
the electromagnetic piston I (4) is fixedly connected with the piston rod I (2), and the front end of the piston rod I (2) extends out of the working cylinder (1) from the left end of the working cylinder (1); the electromagnetic piston II (5) is fixedly connected with the piston rod II (3), and the front end of the piston rod II (3) extends out of the working cylinder (1) from the right end of the working cylinder (1); a spring I (10) is arranged between the left end face of the floating piston (6) and the right end face of the electromagnetic piston I (4), and a spring II (11) is arranged between the right end face of the floating piston (6) and the left end face of the electromagnetic piston II (5);
the outer circular surfaces of the electromagnetic piston I (4) and the electromagnetic piston II (5) are respectively provided with a coil ring groove, and a coil (8) is arranged in each coil ring groove; an annular groove is formed in the outer circular surface of the floating piston (6), a permanent magnet ring (9) is arranged in the annular groove, and the outer circular surface of the permanent magnet ring (9) is flush with the outer circular surface of the floating piston (6).
2. The bi-directional multi-piston hybrid magnetorheological damper of claim 1, wherein: the magnetic conduction sleeve is characterized by further comprising a magnetic conduction sleeve (12) and magnetic conduction sleeve end covers (13), wherein the magnetic conduction sleeve (12) is sleeved on the inner wall of the working cylinder (1) and extends to the left side and the right side of the working cylinder (1), two ends of the magnetic conduction sleeve (12) are sealed through the magnetic conduction sleeve end covers (13), and the magnetic conduction sleeve end covers (13) are located on the inner walls of openings at two ends of the working cylinder (1); the magnetorheological fluid (7), the electromagnetic piston I (4), the electromagnetic piston II (5) and the floating piston (6) are all arranged in the magnetic sleeve (12); the piston rod I (2) and the piston rod II (3) pass through piston rod holes in the end cover (13) of the magnetic conduction sleeve and then penetrate out of the working cylinder (1); gaps are reserved between the outer circular surfaces of the electromagnetic piston I (4) and the electromagnetic piston II (5) and the inner wall of the magnetic sleeve (12); and a gap is reserved between the outer circular surface of the coil (8) and the inner wall of the magnetic sleeve (12).
3. The bi-directional multi-piston hybrid magnetorheological damper of claim 2, wherein: the two ends of the inner wall of the magnetic sleeve (10) are provided with piston rod guide rings (25), the piston rod guide rings (25) are provided with guide holes, and the piston rod I (2) and the piston rod II (3) respectively pass through the guide holes at one end to penetrate through the piston rod guide rings (25).
4. The bi-directional multi-piston hybrid magnetorheological damper of claim 2, wherein: the size of the clearance between the outer circular surface of the electromagnetic piston I (4), the electromagnetic piston II (5) and the floating piston (6) and the inner wall of the magnetic sleeve (12) is 0.3mm-20 mm.
5. The bi-directional multi-piston hybrid magnetorheological damper of claim 2, wherein:
the working cylinder (1) comprises a cylinder body (17) and an end cover (18); the two end covers (18) are fixedly arranged at the two ends of the cylinder body (17) through hexagonal cylindrical head screws I (24) respectively and contact and press the end covers (13) of the magnetic conduction sleeves at the two ends of the magnetic conduction sleeve (12); piston rod holes are respectively formed in the two end covers (18), and the piston rod I (2) and the piston rod II (3) respectively pass through the end covers (18) through the piston rod holes in the end cover (18) at one end; the inner wall of the piston rod hole on the end cover (18) is provided with a sealing ring groove I, and a sealing ring (19) is arranged in the sealing ring groove I.
6. The dual piston magnetorheological damper of claim 2, wherein: the working cylinder (1) and the floating piston (6) are made of non-magnetic materials; the magnetic conduction sleeve (12), the magnetic conduction sleeve end cover (13), the electromagnetic piston I (4) and the electromagnetic piston II (5) are made of magnetic conduction materials.
7. The bi-directional multi-piston hybrid magnetorheological damper of claim 1, wherein: the middle parts of the left end surface and the right end surface of the floating piston (6) are respectively provided with a groove (14); the tail end of the piston rod I (2) penetrates through the right end face of the electromagnetic piston I (4), and a nut I (22) is arranged on the piston rod I for fixing; the tail end of the piston rod II (3) penetrates through the left end face of the electromagnetic piston II (5), and a nut II (23) is arranged on the tail end of the piston rod II (3) for fixing; the grooves (14) on the left end surface and the right end surface of the floating piston (6) respectively correspond to the tail ends of the piston rod I (2) and the piston rod II (3); the two sets of springs I (10) and II (11) are respectively arranged, the two sets of springs I (10) are respectively arranged on two sides of a groove (14) of the left end face of the floating piston (6), and the two sets of springs II (11) are respectively arranged on two sides of the groove (14) of the right end face of the floating piston (6).
8. The bi-directional multi-piston hybrid magnetorheological damper of claim 7, wherein: the bottom of the groove (14) on the left end face and the right end face of the floating piston (6) is provided with a rubber pad I (15), and the tail ends of the piston rod I (2) and the piston rod II (3) are respectively provided with a rubber pad II (16).
9. The bi-directional multi-piston hybrid magnetorheological damper of claim 1, wherein: the front ends of the piston rod I (2) and the piston rod II (3) are respectively provided with a lifting ring (20); and lead grooves (21) are respectively arranged in the piston rod I (2) and the piston rod II (3), and electric wires are arranged in the lead grooves (21) and are respectively connected with coils (8) on the electromagnetic piston I (4) and the electromagnetic piston II (5) and an external power supply.
10. The bi-directional multi-piston hybrid magnetorheological damper of claim 1, wherein: one side of the annular groove on the floating piston (6) extends to the end face of the side of the floating piston (6), magnetic ring I (26), permanent magnet ring (9) and magnetic ring II (27) are sequentially installed on the annular groove from inside to outside, two ends of the permanent magnet ring (9) are respectively contacted with the magnetic ring I (26) and the magnetic ring II (27), the outer end face of the magnetic ring II (27) is flush with the end face of the side of the floating piston (6), a floating piston end cover (28) is arranged on the floating piston (6) of the side, the floating piston end cover (28) is fixedly installed on the floating piston (6) through a hexagonal cylindrical head screw II (29), and the magnetic ring I (26), the permanent magnet ring (9) and the magnetic ring II (27) are packaged on the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911251095.3A CN110966337A (en) | 2019-12-09 | 2019-12-09 | Bidirectional multi-piston hybrid magnetorheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911251095.3A CN110966337A (en) | 2019-12-09 | 2019-12-09 | Bidirectional multi-piston hybrid magnetorheological damper |
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| Publication Number | Publication Date |
|---|---|
| CN110966337A true CN110966337A (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911251095.3A Pending CN110966337A (en) | 2019-12-09 | 2019-12-09 | Bidirectional multi-piston hybrid magnetorheological damper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007262A (en) * | 2021-02-06 | 2021-06-22 | 广西科技大学 | Variable gap order-changing type magneto-rheological damper |
| CN113074208A (en) * | 2021-03-16 | 2021-07-06 | 广西科技大学 | Combined type magneto-rheological vibration damper |
| CN113074210A (en) * | 2021-03-16 | 2021-07-06 | 广西科技大学 | Passive magnetorheological vibration damper |
| CN114607727A (en) * | 2022-03-09 | 2022-06-10 | 浙江师范大学 | Magnetorheological fluid automobile bumper |
-
2019
- 2019-12-09 CN CN201911251095.3A patent/CN110966337A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007262A (en) * | 2021-02-06 | 2021-06-22 | 广西科技大学 | Variable gap order-changing type magneto-rheological damper |
| CN113074208A (en) * | 2021-03-16 | 2021-07-06 | 广西科技大学 | Combined type magneto-rheological vibration damper |
| CN113074210A (en) * | 2021-03-16 | 2021-07-06 | 广西科技大学 | Passive magnetorheological vibration damper |
| CN113074208B (en) * | 2021-03-16 | 2022-03-15 | 广西科技大学 | Combined type magneto-rheological vibration damper |
| CN114607727A (en) * | 2022-03-09 | 2022-06-10 | 浙江师范大学 | Magnetorheological fluid automobile bumper |
| CN114607727B (en) * | 2022-03-09 | 2023-04-07 | 浙江师范大学 | Magnetorheological fluid automobile bumper |
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