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Direct-drive type permanent magnet synchronous motor dedicated to mine hoister

A mine hoist, permanent magnet synchronous technology, applied in the field of electric motors, can solve the problems of large floor space, complex equipment, low efficiency, etc., and achieve the effects of easy assembly, reduced processing difficulty, and less damage.

Inactive Publication Date: 2010-05-12
大连伯顿冠力电机有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantages of this drive system are: strong overload capacity, all required equipment are conventional products, easy supply, reliable operation, low technical requirements, and will not cause harmful effects on the power grid outside the system; its disadvantages are: efficiency Low, only about 75% on average; the range of speed regulation cannot be too large due to the influence of residual magnetism; the equipment is complex, huge, and occupies a large area, etc.
On the other hand, the commutator of the armature circuit of the DC motor limits the further increase of the capacity of the hoist. With the continuous expansion of deep well mining, the single unit capacity of the hoist will continue to increase, and the reversing commutator of the motor becomes a weak point. link

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  • Direct-drive type permanent magnet synchronous motor dedicated to mine hoister
  • Direct-drive type permanent magnet synchronous motor dedicated to mine hoister
  • Direct-drive type permanent magnet synchronous motor dedicated to mine hoister

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing, the present invention will be further described:

[0031] A direct-drive permanent magnet synchronous motor dedicated to a mine hoist, comprising a motor housing 9, a rotor 5 embedded with a permanent magnet 6 is arranged at the center of the motor housing 9, and a winding ring is arranged outside the rotor 5. There is a stator core 7 with a stator winding 8, and the stator core 7 is fixed on the casing 9 of the motor; the stator winding 8 is connected to the frequency converter 12 through a lead wire 11 .

[0032] The rotor 5 includes a rotor support iron 14 with a through hole 13 in the center, a rotor pole shoe 17 with a groove 18 and a magnetic isolation steel ring 15. The bottom of the rotor pole shoe 17 is fixed on the magnetic isolation steel by bolts 16. On the ring 15, the magnetic isolation steel ring 15 is fixedly connected with the rotor support iron 14; the permanent magnet 6 is arranged in the groove 18 betwe...

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Abstract

The invention relates to a direct-drive type permanent magnet synchronous motor dedicated to mine hoister, which is a driver motor dedicated to large machinery equipment, belonging to the technical field of electromotor. The direct-drive type permanent magnet synchronous motor dedicated to mine hoister provided by the invention can improve driving efficiency of the mine hoisting system, reinforce reliability of system running, reduce maintenance difficulty and dispense with reduction gears. The direct-drive type permanent magnet synchronous motor dedicated to mine hoister comprises a motor shell, a rotor embedded with a permanent magnet is arranged at the center in the motor shell, a stator magnetic core winded with stator winding is arranged at the outside of the rotor, and the stator magnetic core is fixed on the motor shell. The invention is characterized in that the stator winding is connected with a frequency converter by leads.

Description

Technical field: [0001] The invention belongs to the technical field of motors, in particular to a direct-drive permanent-magnet synchronous motor dedicated to a mine hoist, which is a main drive motor for large mechanical equipment. Background technique: [0002] As a typical mechanical and electrical integrated equipment, the mine hoist is responsible for the important task of lifting coal. It is known as the "throat of the mine", and the motor of the mine hoist is its core component. [0003] At present, the existing mine hoists mainly use the following three types of motor drive systems: [0004] 1. AC winding asynchronous motor drive system: [0005] The AC winding asynchronous motor drive system is the first stage in the development of mine hoist electric drive. Since the squirrel-cage asynchronous motor is difficult to meet the requirements of mine hoist starting and speed regulation performance, mine hoists mostly use winding Linear asynchronous motor for dragging....

Claims

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Application Information

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IPC IPC(8): H02K11/00H02K7/10H02K1/27
Inventor 李建东张炳义冯涛
Owner 大连伯顿冠力电机有限公司
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