Permanent magnet synchronous direct-drive lifting machine with gear

A permanent magnet synchronous and hoist technology, applied in electromechanical devices, mechanical equipment, control of mechanical energy, etc., can solve problems such as limiting the application of permanent magnet synchronous motors, occupying a large space, and unable to give full play to the advantages of permanent magnet synchronous motors. , to achieve the effect of reducing manufacturing cost and operating cost, reducing volume and compact structure

Active Publication Date: 2015-07-29
JIANGXI GONGBU MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to achieve this braking, the diameter of the brake flange is often large, and the installation of the caliper brake device needs to occupy a large space, especially in the radial direction of the drum, which severely limits The application of permanent magnet synchronous motors in cranes and other fields is restricted. In addition, people still use the reduction gear of AC asynchronous motors. Matching permanent magnet synchronous motors with this complex reduction gear cannot give full play to the advantages of permanent magnet synchronous motors.

Method used

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  • Permanent magnet synchronous direct-drive lifting machine with gear
  • Permanent magnet synchronous direct-drive lifting machine with gear
  • Permanent magnet synchronous direct-drive lifting machine with gear

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Embodiment Construction

[0012] see Figure 1-5 , a gear permanent magnet synchronous direct-drive hoist disclosed in the present invention includes a hoist base (not shown), a reel 510 rotatably mounted on the hoist base, and a reel for driving the reel to rotate The reel driving device, the outer surface of the reel can usually be provided with a rope groove 511, and is provided with a rope pressing plate or other rope fixing device 512, and the reel driving device uses the permanent magnet synchronous motor 100 as the prime mover, An inner ring gear 531 is provided on the inner wall of the reel, and the driving output gear of the reel driving device meshes with the inner ring gear of the reel. During installation, the outer edge of the inner ring gear can be closely attached to the inner wall of the drum, for example, by means of interference fit or transition fit, and can be set on one side or both sides of the inner ring gear For fixing or protecting the ring gear cover and other parts of the ri...

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PUM

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Abstract

The invention relates to a permanent magnet synchronous direct-drive lifting machine with a gear. A built-in multi-disk braking permanent magnet motor as a prime motor to drive a drum of the lifting machine to rotate; the inner wall of the drum is provided with an inner gear ring; a driving output gear of a drum driving device is meshed with the inner gear ring of the drum; a multi-disk braking device is arranged in the rear portion of a rotor of the built-in multi-disk braking permanent magnet motor; a braking disk combination is pushed by a braking elastic device to form braking during non-energization; the braking force applied to the braking disk combination due to the braking elastic device is relieved through a gate opening power device after energization. According to the permanent magnet synchronous direct-drive lifting machine with the gear, the weight is light, the size is small, the speed adjustment range is wide, the operation and the control are convenient, the use is safe and reliable, and the manufacturing cost and the operation cost can be significantly reduced.

Description

technical field [0001] The invention relates to a gear permanent magnet synchronous direct drive hoist. Background technique [0002] Since the permanent magnet synchronous motor has a wide speed range, large output, and allows operation at a lower speed, when the permanent magnet synchronous motor is used in cranes and other equipment, the requirements for the reducer can be significantly reduced, and the reducer can be simplified or even eliminated. , but since the current permanent magnet synchronous motor does not have a built-in braking device, when it is used in cranes and other equipment, it needs to set up an independent braking device. The commonly used braking device is a caliper braking device, installed on the reel On one side, the brake flange or brake disc is clamped by the brake caliper for braking. In order to achieve this braking, the diameter of the brake flange is often large, and the installation of the caliper brake device needs to occupy a large space,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D1/12B66D1/14B66D1/30B66D5/00H02K7/102F16D66/02
CPCB66D1/12B66D1/14B66D1/30B66D1/56B66D5/00B66D2700/07F16D66/026H02K7/102
Inventor 喻连生喻立号
Owner JIANGXI GONGBU MACHINERY
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