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Servo motor

A servo motor and magnet technology, applied in the field of servo motors, can solve the problems of easy wear and tear of the stator shaft, high running noise, imperfect precision, etc., and achieve the effect of reducing the heating coefficient, eliminating dead spots, and uniform magnetic field.

Pending Publication Date: 2018-05-11
辽宁万意达智能装备科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently known servo motors still have disadvantages such as the magnet steel is easy to fall off, the stator shaft is easy to wear, the torque is low, the running noise is large, and the accuracy is not perfect.

Method used

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Embodiment Construction

[0031] A servo motor, comprising a motor housing 1, a stator 2, a rotor 3, a front end cover 4, a rear end cover 5, a slip magnetic levitation precise start-stop device 6 and an encoder 7, characterized in that:

[0032] The stator 2 is mainly assembled by a stator silicon steel sheet 8 , a stator three-phase short-pitch coil 9 and an anti-off key 10 . The silicon steel sheet 8 is fixed on the inner wall of the motor housing 1 . The stator coil support 11 is provided with a rotary coil slot 12, and the three-phase short-pitch coils 9 of the stator are respectively installed in the corresponding rotary coil slot 12 according to the design requirements, and are insulated by epoxy resin casting.

[0033] The rotor 3 is mainly assembled from a main shaft 13, a rotor magnet cage 14, eight pairs of rotor magnets 15, and a magnet engine cover 16. The cross section of the rotor magnetic steel cage 14 is an octagonal star structure; the cross section of the rotor magnetic steel 15 is ...

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Abstract

Provided is a servo motor, which comprises a housing, a stator, a rotor, a front end cover, a back end cover, a slip magnetic suspension accurate start and stop device and an encoder. A stator coil holder of stator three-phase short-pitch coils is provided with rotary coil slots. The stator three-phase short-pitch coils are arranged in the corresponding rotary coil slots respectively. The rotor ismainly formed by a main shaft, a rotor magnetic steel holder, eight pairs of magnetic steel and two magnetic steel engine sleeves. The cross section of the rotor magnetic steel holder is in an octagonal star structure. The cross section of each rotor magnetic steel is in a fan structure. The eight pairs of magnetic steel, the cross section of which is in the fan structure, are mounted in the rotor magnetic steel holder, the cross section of which is in the octagonal star structure. The two ends of the main shaft are supported by magnetic suspension rotating bearing assemblies arranged in first bearing chambers on the inner walls of the front end cover and the back end cover respectively. Each magnetic suspension rotating bearing assembly is mainly formed by a high-frequency pulse electromagnetic field coil winding and a rotation magnet ring. The servo motor does not have the phenomenon of shedding of the magnetic steel, is large in torque and small in mechanical wear, and is especially good in operation stability and high in precision.

Description

technical field [0001] The invention relates to a motor, especially a servo motor. Background technique [0002] Servo motors can convert electrical signals into torque and speed to drive the control object, and can respond quickly. As an actuator in the control system, it operates stably and has high precision. Therefore, it is widely used in machinery, electric power, petrochemical, automatic control, etc. field. However, the currently known servo motors still have disadvantages such as easy shedding of magnetic steel, easy wear of the stator shaft, low torque, high operating noise, and imperfect precision. With the rapid development of high-tech automation and robotics, more advanced servo motors are required. Contents of the invention [0003] The purpose of the present invention is to provide a kind of servo motor, the servo motor will not produce magnetic steel shedding phenomenon, the torque is 1.5 times that of ordinary similar power motors, the mechanical wear i...

Claims

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Application Information

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IPC IPC(8): H02K11/30H02K37/14H02K5/16H02K1/27
CPCH02K1/276H02K5/161H02K11/30H02K37/14
Inventor 倪永贵刘林兴倪子越
Owner 辽宁万意达智能装备科技有限公司
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