Electromagnetic damper
A technology of electromagnetic damper and magnetic steel, applied in the direction of permanent magnet clutch/brake, etc., can solve the problems of damper sweeping, affecting characteristic linearity, deformation, etc., and achieve the effect of reducing the risk of mouth deformation and facilitating debugging
Inactive Publication Date: 2022-07-12
GUIZHOU AEROSPACE LINQUAN MOTOR CO LTD
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Problems solved by technology
like figure 1 As shown, the eddy current generates heat on the rotor, which increases the armature resistance, suppresses the eddy current, and reduces the torque, which is more obvious under high-speed conditions, so the damping torque characteristic bends slightly downward with the increase of the speed Affects the linearity of the characteristics to a certain extent
Therefore, after the damper is processed, the magnetic field, rotor cup material, outer diameter, etc. are all solidified. The damping torque of the damper will be different, and the damping torque needs to be adjusted. Only by adjusting the length of the rotor cup to change the damping The size of the moment, considering that the rotor cup is a thin-walled part and is long, there will be deformation at the mouth of the rotor cup, which will cause the risk of damper sweeping. Therefore, there is an urgent need for an electromagnetic damper
Method used
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Embodiment
[0038] like figure 2 As shown, the electromagnetic damper of the present invention is a self-contained type, and the electromagnetic damper is composed of a casing 9, a front end cover assembly 6, a rear end cover assembly 8, a rotor 7, a bearing 2, etc., and the casing 9 of the magnetic damper is connected to the The front end cover assembly 6 is positioned with a spigot, and is fastened with a second screw 4. A washer 5 is provided between the second screw 4 and the front end cover assembly 6; the rotor 7 is turned into the casing 9 by using a sleeve tool, The rear end cover assembly 8 is then installed, the rear end cover assembly 8 and the casing 9 are positioned with a spigot and fastened with the fifth screw 10; the rotor 7 is supported in the bearing chamber of the front and rear end cover assembly through two bearings 2, and the two bearings are The front and rear bearing caps are installed at the end, and the axial clearance of the damper is adjusted by adjusting the...
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The invention provides an electromagnetic damper. The electromagnetic damper comprises a machine shell. A rotor is arranged in the machine shell and comprises a shaft, the shaft is connected with an I-shaped rotor cup through a key, and the shaft, the rotor cup and the key are fixed through interference pressing rings. One end of the shaft is sleeved with a front end cover assembly through a bearing, and the other end of the shaft is sleeved with a rear end cover assembly through a bearing. One end of the bearing connected with the front end cover assembly is connected with a front bearing cover through an adjusting washer, and one end of the bearing connected with the rear end cover assembly is connected with a rear bearing cover through an adjusting washer. The rotor cup adopts an I-shaped structure, so that the risk of mouth deformation is reduced; in order to facilitate debugging, the electromagnetic damper must be conveniently disassembled and assembled, so that the structure of the damper adopts a structural form that the two ends support the shell.
Description
technical field [0001] The invention relates to an electromagnetic damper, which belongs to the technical field of design and manufacture of aerospace motors. Background technique [0002] When the two spacecraft rendezvous and docking in space, they will generate enormous impact energy, and it is necessary to consume the energy generated during the rendezvous and docking process through the energy-consuming device to ensure the smooth completion of the rendezvous and docking. [0003] This application adopts electromagnetic damper as the main device, and the electromagnetic damper is a special permanent magnet cup-shaped armature motor. The magnetic fields produced by the magnets interact to produce electromagnetic torque, and the motor starts to spin. However, for the electromagnetic damper, it is a passive passive energy dissipation device. The rotor cup (armature cup) is made of metal with good electrical conductivity. When the prime mover drives the electromagnetic dam...
Claims
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IPC IPC(8): H02K49/10
CPCH02K49/108
Inventor 朱志能陈强吴和远简晓书
Owner GUIZHOU AEROSPACE LINQUAN MOTOR CO LTD