CN115076279B - Magneto-rheological damper - Google Patents

Magneto-rheological damper Download PDF

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Publication number
CN115076279B
CN115076279B CN202210633272.XA CN202210633272A CN115076279B CN 115076279 B CN115076279 B CN 115076279B CN 202210633272 A CN202210633272 A CN 202210633272A CN 115076279 B CN115076279 B CN 115076279B
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China
Prior art keywords
piston
piston rod
side wall
sliding
rod
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Application number
CN202210633272.XA
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Chinese (zh)
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CN115076279A (en
Inventor
邓作标
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Quzhou Longding Auto Parts Manufacturing Co ltd
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Quzhou Longding Auto Parts Manufacturing Co ltd
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Priority to CN202210633272.XA priority Critical patent/CN115076279B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10Springs, 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
    • F16F9/14Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16Devices 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
    • F16F9/18Devices 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
    • F16F9/19Devices 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/3207Constructional features
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/3207Constructional features
    • F16F9/3221Constructional features of piston rods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/42Cooling arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/53Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
    • F16F9/535Magnetorheological [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 discloses a magnetorheological damper, which comprises a cylinder body, wherein a piston rod is connected inside the cylinder body in a sliding way, a sliding cylinder is connected inside the piston rod in a sliding way, a sliding rod is connected inside the sliding cylinder in a sliding way, the piston rod, the sliding cylinder and the sliding rod are regulated through a rotating assembly and are limited through a limiting mechanism, the rotating assembly comprises a fixed shaft, a gear, a rack and a tooth socket, the fixed shafts are respectively and fixedly connected with the side walls of the two sides of the sliding cylinder, the gear is rotationally connected with the side walls of the fixed shaft, an installation groove is formed in the inner side wall of the piston rod, the rack is fixedly connected inside the installation groove, the tooth socket is formed in the side wall of the bottom of the sliding rod, the side wall of the gear is respectively connected with the side wall of the rack and the tooth socket in a meshed way, and the traditional piston rod with a fixed length is designed into a piston rod with adjustable length so that the applicability and the universality of the piston rod can be improved.

Description

Magneto-rheological damper
Technical Field
The invention belongs to the technical field of shock absorbers, and particularly relates to a magneto-rheological shock absorber.
Background
The magnetorheological damper is based on input information from monitoring vehicle body and wheel motion sensors, responds to road conditions and driving environment in real time, and is a magnetic soft particle suspension, when an electromagnetic coil arranged in a damper piston is electrified, the magnetic field of the coil changes the rheological property of the magnetorheological fluid, so that under the condition of no electromechanical control valve and simple mechanical device, damping force with rapid response and strong controllability is generated, and the magnetorheological damper has the characteristics of high adjustable multiple of damping force, easy realization of computer variable damping real-time control, compact structure and small external input energy, and is increasingly valued by engineering.
However, the piston rods of the existing magnetorheological dampers are usually fixed in length, so that the piston rods cannot be adjusted according to the actually required installation length in installation and use, and therefore, the magnetorheological dampers applicable to piston rods with different lengths are required to be produced to improve the application range, and if the problem can be solved, the application range of the piston rods can be improved.
Accordingly, there is a need to provide a new magnetorheological damper to address the above-described problems.
Disclosure of Invention
The invention aims to provide a magnetorheological damper, which can improve the applicability and the universality of a piston rod by designing a traditional piston rod with a fixed length into the piston rod with adjustable length so as to solve the problems in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The magnetorheological damper comprises a cylinder body, wherein a piston rod is connected to the inside of the cylinder body in a sliding manner, a sliding cylinder is connected to the inside of the piston rod in a sliding manner, a sliding rod is connected to the inside of the sliding cylinder in a sliding manner, the piston rod, the sliding cylinder and the sliding rod are regulated through a rotating assembly and are limited through a limiting mechanism, the rotating assembly comprises a fixed shaft, a gear, a rack and a tooth socket, the side walls of the two sides of the sliding cylinder are respectively and fixedly connected with the fixed shaft, the side walls of the fixed shaft are rotationally connected with the gear, an installation groove is formed in the inner side wall of the piston rod, a rack is fixedly connected to the inside of the installation groove, a tooth socket is formed in the side wall of the bottom of the sliding rod, and the side walls of the gear are respectively connected with the side walls of the rack and the tooth socket in a meshed manner;
The limiting mechanism comprises an adjusting pin hole, a thread groove and a hexagonal bolt, wherein a plurality of adjusting pin holes are respectively formed in two sides of the sliding rod, the thread groove is respectively formed in the side wall of the sliding cylinder, the end portion of the hexagonal bolt is inserted into one of the adjusting pin holes, and the side wall of the hexagonal bolt is in threaded connection with the thread groove.
Preferably, the adaptor is installed to the bottom of piston rod, the lateral wall fixedly connected with spacing ring of adaptor, the inside spacing groove of having seted up of bottom of piston rod, the spacing ring is installed to the inside block in spacing groove.
Preferably, the inside interference of adapter is connected with the installation pole, the piston has been cup jointed to the lateral wall of installation pole, the lateral wall of installation pole is provided with the screw thread, the lateral wall of installation pole passes through screw thread and nut threaded connection, the nut is inconsistent with the bottom surface of piston, the cavity has been seted up to the inside of piston, the internally mounted of cavity has solenoid.
Preferably, the side wall of the mounting rod above the piston is fixedly connected with a flow limiting plate, and the interior of the piston is respectively provided with a flow passage.
Preferably, the side wall of the piston is sleeved with a sealing rubber ring, a through groove is formed in the piston, and the piston is installed below the piston rod in a mode that the mounting rod is inserted into the through groove.
Preferably, the top integrated into one piece of piston rod has the screw head, the screw head is connected with the inside screw thread of last mount pad.
Preferably, the bottom threaded connection of cylinder body has down the mount pad, the tip of going up mount pad and lower mount pad has all welded the link.
Preferably, the side wall of the cylinder body is provided with the heat dissipation mechanism, the heat dissipation mechanism comprises a sleeve, a heat conducting net and a semiconductor refrigerating sheet, the semiconductor refrigerating sheet is arranged on the side wall of the cylinder body, the sleeve is sleeved on the outer side of the semiconductor refrigerating sheet, and the heat conducting net is arranged on the side wall of the sleeve.
Preferably, the top lateral wall of cylinder body installs the limiting plate, the bottom lateral wall of cylinder body installs down the limiting plate, telescopic top surface and bottom surface are inconsistent with last limiting plate and lower limiting plate respectively.
The invention has the technical effects and advantages that: compared with the prior art, the magnetorheological damper provided by the invention has the beneficial effects that:
1. According to the magnetorheological damper, the lengths of the sliding cylinder and the sliding rod in the piston rod are adjusted, only two hexagon bolts on the side wall of the sliding cylinder are required to be rotated outwards from the threaded groove, the end parts of the hexagon bolts can slide out of the adjusting pin holes, and the tooth sockets on the bottom of the sliding rod can drive the gear to rotate on the fixed shaft by pulling the sliding rod, so that the length between the sliding cylinder and the sliding rod can be increased.
2. In the process of rotating the gear on the fixed shaft, the gear rotates and moves on the side wall of the rack, so that the sliding cylinder can slide outwards from the inside of the piston rod, the length of the piston rod can be increased, the magnetorheological damper can be installed under different equipment and scenes, the application range of the magnetorheological damper can be improved, and the magnetorheological damper has better universality compared with the traditional magnetorheological damper.
3. According to the magnetorheological damper, the heat dissipation mechanism is arranged on the side wall of the cylinder body, and the upper limit plate and the lower limit plate are used for limiting the heat dissipation mechanism, so that the cylinder body can be cooled through the semiconductor refrigerating sheet in the heat dissipation mechanism in the working process, the magnetorheological fluid in the cylinder body is effectively prevented from being poor in fluidity due to temperature change, and the stability of the magnetorheological damper is improved to a certain extent.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the piston rod of the present invention;
FIG. 3 is a schematic view of the internal structure of the piston of the present invention;
Fig. 4 is a schematic structural diagram of a heat dissipation mechanism according to the present invention.
Reference numerals in the drawings: 1. a cylinder; 2. a piston rod; 3. an upper limit plate; 4. a heat dissipation mechanism; 401. a sleeve; 402. a heat conducting net; 403. a semiconductor refrigeration sheet; 5. a gear; 6. a lower limit plate; 7. a lower mounting seat; 8. hanging rings; 9. a slide cylinder; 10. a slide bar; 11. a hexagonal bolt; 12. an upper mounting seat; 13. adjusting the pin holes; 14. a thread groove; 15. a fixed shaft; 16. a mounting groove; 17. a rack; 18. a screw head; 19. an adaptor; 20. a limiting ring; 21. a limit groove; 22. a mounting rod; 23. a flow-limiting plate; 24. a piston; 25. a sealing rubber ring; 26. a through groove; 27. a flow passage; 28. a thread; 29. a nut; 30. tooth slots; 31. a cavity; 32. an electromagnetic coil.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a magnetorheological damper as shown in figures 1-4, which comprises a cylinder body 1, wherein a piston rod 2 is connected in the cylinder body 1 in a sliding way, a sliding cylinder 9 is connected in the piston rod 2 in a sliding way, a sliding rod 10 is connected in the sliding cylinder 9 in a sliding way, the piston rod 2, the sliding cylinder 9 and the sliding rod 10 are regulated through a rotating assembly and are limited through a limiting mechanism, the rotating assembly comprises a fixed shaft 15, a gear 5, a rack 17 and a tooth socket 30, the side walls of the sliding cylinder 9 are respectively and fixedly connected with the fixed shaft 15, the side wall of the fixed shaft 15 is rotationally connected with the gear 5, the inner side wall of the piston rod 2 is provided with a mounting groove 16, the inside of the mounting groove 16 is fixedly connected with the rack 17, the side wall of the bottom of the sliding rod 10 is provided with a tooth socket 30, and the side wall of the gear 5 is respectively meshed with the side wall of the rack 17 and the tooth socket 30;
the limiting mechanism comprises an adjusting pin hole 13, a thread groove 14 and a hexagonal bolt 11, wherein a plurality of adjusting pin holes 13 are respectively formed in two sides of the sliding rod 10, the thread groove 14 is respectively formed in the side wall of the sliding cylinder 9, the end portion of the hexagonal bolt 11 is inserted into one of the adjusting pin holes 13, and the side wall of the hexagonal bolt 11 is in threaded connection with the thread groove 14.
When the length of the piston rod 2 needs to be prolonged, two hexagon bolts 11 on the side wall of the sliding cylinder 9 are rotated outwards from the threaded grooves 14, the end parts of the hexagon bolts 11 can slide out from the adjusting pin holes 13, then the sliding rod 10 is pulled, in the process that the sliding rod 10 slides outwards from the inside of the sliding cylinder 9, the tooth grooves 30 on the bottom of the sliding rod 10 drive the gear 5 to rotate on the fixed shaft 15, so that the length between the sliding cylinder 9 and the sliding rod 10 can be increased, in the process that the gear 5 rotates on the fixed shaft 15 through the gear 5, the rack 17 of the inner installation groove 16 of the sliding cylinder 9 is also meshed with the side wall of the gear 5, so that the gear 5 rotates on the side wall of the rack 17, and the gear 5 is installed on the side wall of the sliding cylinder 9 through the fixed shaft 15, so that the sliding cylinder 9 can slide outwards from the inside of the piston rod 2, the length of the piston rod 2 can be increased, after the adjustment is completed, the hexagon bolts 11 are rotated again into the inside the sliding cylinder 9 through the threaded grooves 14 on the side wall of the sliding cylinder 9, the end parts of the hexagon bolts 11 and the corresponding length of the adjusting pin holes 13 are again, and the length of the piston rod 2 can not be adjusted again, if the length needs to be adjusted repeatedly, and the length can be adjusted again, and can be kept.
The adaptor 19 is installed to the bottom of piston rod 2, and the lateral wall fixedly connected with spacing ring 20 of adaptor 19, and spacing groove 21 has been seted up to the inside bottom of piston rod 2, and spacing ring 20 is installed to the inside block in spacing groove 21, through spacing ring 20 and the inside block effect in spacing groove 21, can install adaptor 19 on the bottom of piston rod 2, and the inside interference of adaptor 19 is connected with installation pole 22, and piston 24 has been cup jointed to the lateral wall of installation pole 22, cavity 31 has been seted up to the inside of piston 24, the internally mounted of cavity 31 has solenoid 32, and the damping force is changed to the magnetorheological fluid after the circular telegram, and hollow in the middle of installation pole 22 and piston rod 2 is used for installing the electric wire, and the electric wire is connected with solenoid 32, and the lateral wall of installation pole 22 is provided with screw 28, and nut 29 threaded connection is passed through to the lateral wall of installation pole 22, and the bottom surface of piston 24 is contradicted to nut 29, and through the lateral wall of installation pole 22 and nut 29 threaded connection, makes nut 29 can fix the piston 24 of installing on the lateral wall of installation pole 22, and then can be convenient for install piston 24 and dismantle simultaneously and also later stage of being convenient for.
The side wall of the mounting rod 22 above the piston 24 is fixedly connected with the flow limiting plate 23, the flow channels 27 are respectively formed in the piston 24, magnetorheological fluid can enter or enter through the flow channels 27 in the vertical sliding process of the piston 24 in the cylinder body 1 under the action of the flow channels 27, the flow velocity of the magnetorheological fluid can be regulated under the action of the flow limiting plate 23, the damping capacity of the magnetorheological damper can be ensured in the long-time use process, the sealing rubber ring 25 is sleeved on the side wall of the piston 24, the through groove 26 is formed in the piston 24, the piston 24 is mounted below the piston rod 2 in a mode of inserting the mounting rod 22 into the through groove 26, the sealing rubber ring 25 is sleeved on the side wall of the piston 24, the side wall of the sealing rubber ring 25 is abutted against the inner wall of the cylinder body 1, so that the tightness of the piston 24 in the sliding process is ensured, and convenience is provided for mounting the piston 24 under the action of the through groove 26.
The top integrated into one piece of piston rod 2 has screw head 18, screw head 18 and the inside threaded connection of last mount pad 12, through the inside threaded connection of screw head 18 and mount pad on the piston rod 2 top, make and dismantle and install between going up mount pad 12 and the piston rod 2, thereby can select corresponding last mount pad 12 according to different installation environment, improve the commonality of magnetorheological damper, the bottom threaded connection of cylinder body 1 has mount pad 7 down, the tip of going up mount pad 12 and mount pad 7 has all welded link 8 down, can install the magnetorheological damper on the axostylus axostyle through link 8, further provide the commonality of magnetorheological damper.
The heat dissipation mechanism 4 comprises a sleeve 401, a heat conducting net 402 and a semiconductor refrigerating piece 403, the semiconductor refrigerating piece 403 is installed on the side wall of the cylinder body 1, the sleeve 401 is sleeved on the outer side of the semiconductor refrigerating piece 403, the heat conducting net 402 is arranged on the side wall of the sleeve 401, the heat dissipation and heat absorption treatment can be carried out on the inner part of the cylinder body 1 under the action of the semiconductor refrigerating piece 403 in the process of moving the piston 24, the sleeve 401 is sleeved on the semiconductor refrigerating piece 403, on the one hand, the semiconductor refrigerating piece 403 can be fixed, on the other hand, the semiconductor refrigerating piece 403 can be subjected to heat dissipation treatment, meanwhile, the upper limit plate 3 is also installed on the top side wall of the cylinder body 1, the lower limit plate 6 is installed on the bottom side wall of the cylinder body 1, the top surface and the bottom surface of the sleeve 401 are respectively abutted against the upper limit plate 3 and the lower limit plate 6, the semiconductor refrigerating piece 403 and the sleeve 401 can be subjected to limit treatment after being installed on the side wall of the cylinder body 1, the semiconductor refrigerating piece 403 and the sleeve 401 can be limited and fixed, and the semiconductor refrigerating piece 403 can be prevented from falling off in the complex use process of the environment.
Structural principle and use flow: the hanging rings 8 on the upper mounting seat 12 and the lower mounting seat 7 are sleeved on a shaft rod of magnetorheological damper equipment, the upper mounting seat 12 and the lower mounting seat 7 which are convenient to mount can be replaced by disassembling the upper mounting seat 12 and the lower mounting seat 7, and then the length of the piston rod 2 is adjusted according to the actual required damping range;
1. When the length of the piston rod 2 needs to be prolonged, the two hexagon bolts 11 on the side wall of the sliding cylinder 9 are rotated outwards from the thread grooves 14, so that the end parts of the hexagon bolts 11 can slide out from the adjusting pin holes 13, then the sliding rod 10 is pulled, in the process that the sliding rod 10 slides outwards from the inside of the sliding cylinder 9, the tooth grooves 30 on the bottom of the sliding rod 10 drive the gear 5 to rotate on the fixed shaft 15, so that the length between the sliding cylinder 9 and the sliding rod 10 can be increased, in the process that the gear 5 rotates on the fixed shaft 15, the gear 5 rotates and moves on the side wall of the gear 5 because the rack 17 of the internal mounting groove 16 of the sliding cylinder 9 is also meshed with the side wall of the gear 5, and the gear 5 is mounted on the side wall of the sliding cylinder 9 through the fixed shaft 15, so that the sliding cylinder 9 can slide outwards from the inside of the piston rod 2, so that the length of the piston rod 2 can be increased.
2. After the adjustment is completed, the hexagonal bolt 11 is rotated again into the sliding cylinder 9 through the thread groove 14 on the side wall of the sliding cylinder 9, so that the end part of the hexagonal bolt 11 is spliced again with the inside of the adjusting pin hole 13 with the corresponding length, the length of the piston rod 2 can be kept unchanged after the adjustment, and if the length of the piston rod 2 is required to be adjusted again, the operation is repeated.
In the actual working process, the vibration of the device can promote the electromagnetic coil in the cylinder body 1 to be electrified, so that the upper piston 24 near the electromagnetic coil generates a magnetic field, magnetorheological fluid can flow in the through groove 26 with low fluidity under the action of the magnetic field, and the piston 24 can provide damping in the process of moving in the cylinder body 1 to slide up and down, so that the vibration generated by the device can be reduced.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.

Claims (9)

1. Magnetorheological damper, including cylinder body (1), its characterized in that: the cylinder is characterized in that a piston rod (2) is slidably connected to the inside of the cylinder body (1), a sliding cylinder (9) is slidably connected to the inside of the piston rod (2), a sliding rod (10) is slidably connected to the inside of the sliding cylinder (9), the piston rod (2), the sliding cylinder (9) and the sliding rod (10) are regulated through a rotating assembly and limited through a limiting mechanism, the rotating assembly comprises a fixed shaft (15), a gear (5), a rack (17) and a tooth socket (30), fixed shafts (15) are fixedly connected to two side walls of the sliding cylinder (9) respectively, the side walls of the fixed shaft (15) are rotatably connected with the gear (5), a mounting groove (16) is formed in the inner side wall of the piston rod (2), a rack (17) is fixedly connected to the inside of the mounting groove (16), a tooth socket (30) is formed in the bottom side wall of the sliding rod (10), and the side walls of the gear (5) are respectively connected with the side walls of the rack (17) and the tooth socket (30) in a meshed mode.
Stop gear includes regulation pinhole (13), thread groove (14) and hexagon bolt (11), a plurality of regulation pinholes (13) have been seted up respectively to the both sides of slide bar (10), thread groove (14) have been seted up respectively to the lateral wall of slide tube (9), the tip of hexagon bolt (11) is pegged graft in the inside of one of them regulation pinhole (13), threaded connection between the lateral wall of hexagon bolt (11) and thread groove (14).
2. The magnetorheological damper of claim 1, wherein: the connecting device is characterized in that an adapter (19) is arranged at the bottom of the piston rod (2), a limiting ring (20) is fixedly connected to the side wall of the adapter (19), a limiting groove (21) is formed in the bottom end of the piston rod (2), and the limiting ring (20) is mounted in the limiting groove (21) in a clamping mode.
3. The magnetorheological damper of claim 2, wherein: the inside interference of adapter (19) is connected with installation pole (22), piston (24) have been cup jointed to the lateral wall of installation pole (22), the lateral wall of installation pole (22) is provided with screw thread (28), the lateral wall of installation pole (22) passes through screw thread (28) and nut (29) threaded connection, nut (29) are inconsistent with the bottom surface of piston (24), cavity (31) have been seted up to the inside of piston (24), the internally mounted of cavity (31) has solenoid (32).
4. The magnetorheological damper of claim 3, wherein: the side wall of the mounting rod (22) above the piston (24) is fixedly connected with a flow limiting plate (23), and a flow passage (27) is formed in the piston (24).
5. The magnetorheological damper of claim 4, wherein: the side wall of the piston (24) is sleeved with a sealing rubber ring (25), a through groove (26) is formed in the piston (24), and the piston (24) is installed below the piston rod (2) in a mode that the mounting rod (22) is inserted into the through groove (26).
6. The magnetorheological damper of claim 5, wherein: the top integrated into one piece of piston rod (2) has screw head (18), screw head (18) and the inside threaded connection of last mount pad (12).
7. The magnetorheological damper of claim 6, wherein: the bottom thread connection of cylinder body (1) has lower mount pad (7), the tip of going up mount pad (12) and lower mount pad (7) all welds link (8).
8. The magnetorheological damper of claim 1, wherein: the cooling device is characterized in that the side wall of the cylinder body (1) is provided with a cooling mechanism (4), the cooling mechanism (4) comprises a sleeve (401), a heat conducting net (402) and a semiconductor cooling plate (403), the side wall of the cylinder body (1) is provided with the semiconductor cooling plate (403), the outer side of the semiconductor cooling plate (403) is sleeved with the sleeve (401), and the side wall of the sleeve (401) is provided with the heat conducting net (402).
9. The magnetorheological damper of claim 8, wherein: the top lateral wall of cylinder body (1) is installed and is gone up limiting plate (3), lower limiting plate (6) is installed to the bottom lateral wall of cylinder body (1), the top surface and the bottom surface of sleeve (401) are inconsistent with last limiting plate (3) and lower limiting plate (6) respectively.
CN202210633272.XA 2022-06-06 2022-06-06 Magneto-rheological damper Active CN115076279B (en)

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CN205064671U (en) * 2015-09-22 2016-03-02 郑州精益达汽车零部件有限公司 Holding power adjustable air spring
CN109372936A (en) * 2018-11-18 2019-02-22 刘山平 A kind of Double-cylinder high-pressure magnetorheological shock absorber

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