A motor shock absorber

Abstract

The invention provides a shock-absorption device of a motor. The shock-absorption device comprises supporting devices, shock-absorption amplitude adjustment devices and a fixing base, wherein the supporting devices are arranged on the lower side of a motor shell and used for supporting the motor; the shock-absorption amplitude adjustment devices are connected with the supporting devices and used for adjusting the reverse amplitude of the motor according to the amplitude of the motor. Each shock-absorption amplitude adjustment device comprises a shock-absorption device and an elastic adjustingdevice, wherein the shock-absorption device comprises a master elastic block and an auxiliary elastic block, the auxiliary elastic block is arranged at the lower end of the supporting device, and an amplitude value adjusting ball is arranged between the master elastic block and the auxiliary elastic block; the elastic adjusting device comprises a guide rod, a press block, a spring and a moving rod, the guide rod is arranged at the lower end of the master elastic block, the upper end of the press block is connected with the guide rod, the lower end of the press block is connected with the moving rod, and the spring is arranged on the moving rod; the elastic adjusting devices are connected with the fixing base.

Description

technical field [0001] The invention relates to a motor device, in particular to a shock absorbing device for a motor. Background technique [0002] At present, motors are used in all walks of life, and motors with different structures are used in different occasions. In some external rotor motors, the stator core and the shaft are directly fixed together and are rigidly connected. For example, the ceiling fan motor, the shaft is directly Installed on the shaft, when the rotor rotates, there is a relationship between the action force and the reaction force between the rotor and the stator. The reaction force received by the stator makes the motor vibrate. At the same time, when the electric vehicle starts to speed up, the motor starts to vibrate, and the stator also starts Vibration, which not only greatly reduces the user's driving comfort, but also emits high-frequency harsh noise, causing environmental pollution. [0003] In the prior art, there have been relevant resear...

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Problems solved by technology

[0002] At present, motors are used in all walks of life, and motors with different structures are used in different occasions. In some external rotor motors, the stator core and the shaft are directly fixed together and are rigidly connected. For example, the ceiling fan motor, the shaft is directly Installed on the shaft, when the rotor rotates, there is a relationship between the action force and the reaction force between the rotor and the stator. The reaction force received by the stator makes the motor vibrate. At the same time, when the electric vehicle starts to speed up, the motor starts to vibrate, and the stator also starts Vibration, which not only greatly reduces the user's driving comfort, but also emits high-frequency harsh noise, causing environmental pollution

[0003] In the prior art, there have been relevant researches on reducing motor vibration, mainly by installing anti-vibration materials under the motor base, but the anti-vibration effect is not ideal

Or some directly fill the cavity between the rotor and the stator with rubber. If the volume of the cavity is large, the volume of the filled rubber is also large. Under the high-speed rotation of the motor, the rubber with a large volume is easy to produce The deformation will seriously affect the rotation of the rotor. When the vibration is suppressed, it is easy to cause the generator to stall and the vibration reduction effect is poor. However, the active control method is used to let the motor pass quickly within the vibration speed range, and the motor will be lost to a certain extent. output; and the motor will trigger active control when it reaches a certain vibration amplitude, and the motor still has the risk of vibration

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