Inner taper-angle magnetic liquid damping shock absorber with elastic cushion
A magnetic liquid, elastic pad technology, applied in the direction of shock absorbers, springs/shock absorbers, shock absorbers, etc., can solve the problem of scratching, unapplied, permanent magnets hitting the wall and permanent magnets easy to tilt and shell cones angle and other problems to avoid scratching
Inactive Publication Date: 2015-05-20
BEIJING JIAOTONG UNIV
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Problems solved by technology
[0013] The technical problem to be solved by the present invention is that the current magnetic liquid damping shock absorber has problems such as difficulty in the flow of the magnetic liquid due to various structural defects, permanent magnets bumping into walls, and permanent magnets are easy to tilt and scrape against the cone angle of the shell, making it Unable to be applied in engineering practice
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[0030] The present invention will be further described with accompanying drawing as specific embodiment:
[0031] An inner cone angle magnetic liquid damping shock absorber with an elastic pad, such as figure 1 , the damping device includes: a left end cover 1, an elastic pad 2, a housing 3, a left thread retaining ring 4, a left positioning permanent magnet 5, a left positioning rod 6, a first energy-dissipating permanent magnet 7, a connecting rod 8, a second Energy-consuming permanent magnet 9, right positioning rod 10, right positioning permanent magnet 11, magnetic liquid 12, right screw retaining ring 13, right end cap 14, ventilation groove 15.
[0032] Connections between the parts making up the device:
[0033] First, the elastic pad 2 is fixedly connected with the housing 1 to form a housing with an elastic pad, and the connection method is the bonding method; The permanent magnet 7, the connecting rod 8, the second energy-dissipating permanent magnet 9 and the rig...
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The invention provides an inner taper-angle magnetic liquid damping shock absorber with an elastic cushion and belongs to the field of mechanical engineering vibration. The inner taper-angle magnetic liquid damping shock absorber with the elastic cushion successfully solves the problem that an existing magnetic liquid damping shock absorber can not be applied to engineering practice due to various structure problems. The device comprises a left end cover (1), the elastic cushion (2), a shell (3), a left threaded check ring (4), a left locating permanent magnet (5), a left locating rod (6), a first energy consumption permanent magnet (7), a connecting rod (8), a second energy consumption permanent magnet (9), a right locating rod (10), a right locating permanent magnet (11), magnetic liquid (12), a right threaded check ring (13), a right end cover (14) and a vent groove (15). When vibration happens outside, the magnetic liquid moves along with the left locating permanent magnet (5), the first energy consumption permanent magnet (7), the second energy consumption permanent magnet (9) and the right locating permanent magnet (11), so that energy is absorbed, the left locating permanent magnet (5) and the right locating permanent magnet (11) enable frequency difference to be formed between a mass block and the shell (3) under the action of taper angles, and the damping efficiency is maximized.
Description
technical field [0001] The invention relates to an inner cone angle magnetic liquid damping shock absorber with an elastic pad, which is suitable for vibration reduction of long and straight objects in spacecraft. Background technique [0002] The magnetic liquid damping shock absorber is a passive shock absorber with high sensitivity to inertial force, and has the advantages of simple structure, small size, large energy consumption and long life. Due to the special operating environment of the spacecraft, its own volume, weight and energy are limited to a certain extent, so the magnetic liquid damping shock absorber is very suitable for the low-frequency, small-amplitude vibration reduction of long and straight objects in large spacecraft, such as the solar energy of the space station. At the same time, it also has broad application prospects on the ground, such as vibration reduction of high-power antennas up to 100 meters long, vibration reduction of precision balances, e...
Claims
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IPC IPC(8): F16F9/53F16F9/32
CPCF16F9/3207F16F9/535
Inventor 李德才姚杰常建军
Owner BEIJING JIAOTONG UNIV