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Single-phase winch

A hoist and single-phase reel technology, applied in hoisting device, spring mechanism and other directions, can solve the problems of unreliable performance, potential safety hazards, easy heating of the motor, etc., and achieve the effect of reliable performance and wide application range.

Inactive Publication Date: 2011-08-10
吴江市麒麟起重机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual single-phase motor does not have the braking function, and its performance is not reliable, that is, the starting performance at full load is poor, and the motor tends to heat up when it is running at full load for a long time, and there are potential safety hazards when using it. limit

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0016] Embodiment one: see attached figure 1 to attach Figure 4 shown.

[0017] A single-phase hoist, comprising a drive device, a hoist body 1 connected to the drive device, the drive device includes a three-phase asynchronous motor 2, a worm gear reducer 3, the output shaft of the three-phase asynchronous motor 2 is connected to the worm gear reducer 3, The output of the worm gear reducer 3 is connected to the hoist body 1. The single-phase hoist also includes a frequency converter 4. The input of the frequency converter 4 is connected to the DC power supply. The output of the frequency converter 4 is electrically connected to the three-phase asynchronous motor 2. 4 Convert the single-phase power of the DC power supply to three-phase power.

[0018] The driving device can also be a three-phase brake motor.

[0019] The inverter 4 converts the single-phase power supply into a three-phase power supply, and then drives the three-phase asynchronous motor 2 to work, which can...

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PUM

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Abstract

The invention relates to a single-phase winch, which comprises a driving device, a winch body connected with the driving device, and a frequency converter, wherein the driving device comprises a three-phase motor; the input of the frequency converter is connected with a single-phase alternating current power supply; the output of the frequency converter is electrically connected with the three-phase motor; and the frequency converter is used for converting the single-phase alternating current power supply into a three-phase alternating current power supply. In the single-phase winch, the frequency converter is used for converting the single-phase power supply into the three-phase power supply to drive the three-phase motor to work, so that excellent properties such as braking and the like of the three-phase motor can be fully exerted, and the single-phase winch has a reliable property; simultaneously, the single-phase winch has a wide application range when used in occasions without the three-phase power supply.

Description

technical field [0001] The invention relates to a single-phase winch. Background technique [0002] Existing single-phase hoists usually use a single-phase power supply to drive a single-phase motor to work. Since the hoist is used for lifting operations, the motor is required to have a braking function to avoid danger. The usual single-phase motor does not have the braking function, and its performance is not reliable, that is, the starting performance at full load is poor, and the motor tends to heat up when it is running at full load for a long time, and there are potential safety hazards when using it. limit. Contents of the invention [0003] The purpose of the present invention is to provide a single-phase winch with reliable performance and wide application range. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] A single-phase hoisting machine, comprising a driving device and a hoisting machine body...

Claims

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Application Information

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IPC IPC(8): B66D1/12B66D1/14
Inventor 周建森郑永祥王方明
Owner 吴江市麒麟起重机械有限公司