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Rotor structure and servo motor

A rotor structure and rotor shaft technology, applied in electrical components, electromechanical devices, mechanical equipment, etc., can solve problems such as mechanical resonance, inability to rigidly connect, and unstable flexible transmission systems, and achieve the goal of suppressing mechanical resonance and improving system stability. Effect

Active Publication Date: 2020-07-10
GREE ELECTRIC APPLIANCES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the servo system inevitably needs to use coupling parts such as couplings, reducers, and belts. Since these connectors have elastic deformation, they cannot be regarded as ideal rigid connections.
The elastic connection between the motor and the load limits their performance improvement; because increasing the controller gain improves the motor response while causing the instability of the flexible transmission system, that is, the phenomenon of mechanical resonance

Method used

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  • Rotor structure and servo motor
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Embodiment Construction

[0032] see in combination Figure 1 to Figure 10 As shown, according to the embodiment of the present application, the rotor structure includes a rotor shaft 1, and an inertia disk 2 is arranged on the rotor shaft 1 along the circumferential direction. The radial position of the shaft 1 is adjustable, and each inertia disk 2 can be kept at the adjusted position.

[0033] The inertia disk 2 of this rotor structure is divided into at least two pieces along the circumferential direction, and the position of each inertia disk 2 along the radial direction of the rotor shaft 1 can be adjusted, so that the inertia of the motor side can be adjusted according to the change of the load inertia to achieve optimal The choice of inertia ratio can suppress mechanical resonance and improve system stability.

[0034] At the same time, since the inertia of the rotor structure can be adjusted, one rotor structure can match loads with various inertias, and the working range is wider. It can als...

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Abstract

The invention provides a rotor structure and a servo motor. The rotor structure comprises a rotor shaft (1), an inertia disc (2) is arranged on the rotor shaft (1) in the circumferential direction andis divided into at least two parts in the circumferential direction, and all the parts of the inertia disc (2) are adjustable in position in the radial direction of the rotor shaft (1) and can be maintained at the adjusted positions. According to the rotor structure, the inertia on the motor side can be adjusted according to changes of the inertia of a load, and optimal inertia ratio selection can be achieved, so that mechanical resonance can be restrained, and the system stability can be improved.

Description

technical field [0001] The present application relates to the field of motor technology, in particular to a rotor structure and a servo motor. Background technique [0002] Due to its high control precision and good working dynamic performance, the servo system is widely used in the field of modern industrial manufacturing. However, the servo system inevitably needs to use coupling components such as couplings, reducers, and belts. Since these connectors have elastic deformation, they cannot be regarded as ideal rigid connections. The elastic connection between the motor and the load limits their performance improvement; because increasing the controller gain improves the motor response while causing the instability of the flexible transmission system, that is, the phenomenon of mechanical resonance. Contents of the invention [0003] Therefore, the technical problem to be solved in this application is to provide a rotor structure and a servo motor, which can adjust the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/14H02K7/00
CPCF16F15/1464H02K7/003
Inventor 吉扬宏李峰岩王瑞东陈飞龙张育州
Owner GREE ELECTRIC APPLIANCES INC