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Low-speed outer rotor permanent magnet drive device with rotating speed of outer cylinder being 0.001-30r/min

A permanent magnet drive, external rotor technology, applied in the direction of electromechanical devices, electric components, control mechanical energy, etc., can solve the problems of large running vibration, high maintenance, poor stability, etc., to reduce the design load and operate safely. , the effect of reducing the volume

Active Publication Date: 2011-09-14
江西起重机械总厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The operating mechanism is generally composed of a motor, a reducer, a transmission gear, or a three-in-one reducer. The traditional lifting mechanism and operating mechanism have complex structures, high noise, and single braking has potential safety hazards. Poor stability, high maintenance and other issues

Method used

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  • Low-speed outer rotor permanent magnet drive device with rotating speed of outer cylinder being 0.001-30r/min
  • Low-speed outer rotor permanent magnet drive device with rotating speed of outer cylinder being 0.001-30r/min

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1. A low-speed outer rotor permanent magnet drive device with a rotating speed of the outer cylinder of 0.001r / min-30r / min, including a brake 1, a winding 2, a permanent magnet 3, a central shaft 4, an outer cylinder 5, an iron core 6, and a bearing 7. Fixed seat 8 and frequency converter 9; wherein: brake 1 is set at both ends of outer cylinder 5 and fixed on central shaft 4, permanent magnet 3 is installed on the inner wall of outer cylinder 5, and outer cylinder 5 is fixed in the center through bearing 7 On the shaft 4, the winding 2 is embedded in the iron core 6, and the iron core 6 is installed on the central shaft 4 to form a whole.

Embodiment 2

[0030] Embodiment 2, a low-speed outer rotor permanent magnet drive device with a rotating speed of the outer cylinder of 0.001r / min-30r / min, including a brake 1, a winding 2, a permanent magnet 3, a central shaft 4, an outer cylinder 5, an iron core 6, and a bearing 7. Fixed seat 8 and frequency converter 9; wherein: brake 1 is set at both ends of outer cylinder 5 and fixed on central shaft 4, permanent magnet 3 is installed on the inner wall of outer cylinder 5, and outer cylinder 5 is fixed in the center through bearing 7 On the shaft 4, the winding 2 is embedded in the iron core 6, and the iron core 6 is installed on the central shaft 4 to form a whole. Seat 8 is installed on the workbench 10.

Embodiment 3

[0031] Embodiment 3, a low-speed outer rotor permanent magnet drive device with a rotating speed of the outer cylinder of 0.001r / min-30r / min, wherein: the workbench 10 is a trolley of a crane. The trolley is the hoisting mechanism of the crane and undertakes the role of lifting heavy objects. All the other are with embodiment 1 or embodiment 2.

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Abstract

The invention relates to the field of hoisting machinery, in particular to a low-speed outer rotor permanent magnet drive device with a rotating speed of an outer cylinder of 0.001-30r / min. The device comprises brakes, a winding, a permanent magnet, a central shaft, the outer cylinder, an iron core, a bearing, fixed seats and a frequency converter, wherein the brakes are arranged at both ends in the outer cylinder and fixed to the central shaft; the permanent magnet is installed on the inner wall of the outer cylinder; the outer cylinder is fixed to the central shaft by the bearing; the winding is embedded into the iron core; the iron core is installed on the central shaft to be connected into a whole; the central shaft is fixed in the fixed seats at both ends; and the frequency converteris connected with the winding by an output line. The invention has the two characteristics of simple structure and realization of large-torque output under the low speed condition, and also has the advantages of light weight, high reliability, stable running, microseism, low noise, safety, energy saving and long service life.

Description

technical field [0001] The invention relates to the field of hoisting machinery, in particular to a low-speed outer rotor permanent magnet drive device with an outer cylinder whose rotating speed is 0.001r / min-30r / min. Background technique [0002] Traditional cranes generally consist of a main girder, a lifting mechanism, an operating mechanism and an electric control part. The main function of lifting is to lift materials and run a certain distance to achieve the purpose of transportation, loading and unloading and installation. The hoisting mechanism and operating mechanism of the crane are its main core components. [0003] In the traditional sense, the hoisting mechanism that achieves high output torque at low speed is generally composed of a motor, a reducer, an outer cylinder and a transmission mechanism, which is commonly referred to as a "three-piece four-link mechanism". The operating mechanism is generally composed of a motor, a reducer, a transmission gear, or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/10
Inventor 喻连生
Owner 江西起重机械总厂有限公司
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