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Electric Chain Hoist Using Voltage Type Vector Control Frequency Converter

A chain electric hoist, vector control technology, applied in the spring mechanism, hoisting device, etc., can solve the problems of slow technological progress, etc., achieve strong safety protection performance, low manufacturing cost, good start-up and speed regulation performance Effect

Inactive Publication Date: 2011-12-14
张建祖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic electric chain hoist manufacturers have done a lot of work to improve the quality of mechanical parts, and the progress is relatively fast, but the technical progress in electrical performance and safety protection is relatively slow.

Method used

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  • Electric Chain Hoist Using Voltage Type Vector Control Frequency Converter
  • Electric Chain Hoist Using Voltage Type Vector Control Frequency Converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] As attached to the manual figure 1 As shown, an electric chain hoist using a voltage-type vector control frequency converter includes an upper hook 1 and a lower hook 12, and a sprocket 5, a chain 6 and a motor 9 are arranged between the upper hook and the lower hook. The outer cover 2 is provided with a frequency converter 3 and a resistor 10 inside the outer cover. The frequency converter and the resistor are respectively located at two ends of the outer cover, and an electromagnetic brake 4 is also arranged inside the outer cover. The lower part of the gear case housing is connected with a flashlight 7 for controlling the switch. A chain pocket 11 is provided outside the chain 6 . The frequency converter is a voltage type vector control frequency converter. The resistor is a braking resistor specially used for voltage-type vector control inverters.

[0021] The upper hook is used to fix the electric chain hoist, which can be fixed on the running trolley or on a wo...

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PUM

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Abstract

The invention relates to a loop-chain electric hoist, in particular to a loop-chain electric hoist with a voltage-type vector control transducer. The loop-chain electric hoist with the voltage-type vector control transducer comprises an upper lifting hook and a lower lifting hook, and a chain wheel, a chain and an outer cover provided with a motor are arranged between the upper lifting hook and the lower lifting hook. The loop-chain electric hoist is characterized in that the outer cover is internally provided with a transducer and a resistor and is further provided with an electromagnetic brake. The loop-chain electric hoist provided by the invention has the characteristics of good starting and speed regulating performances, strong safety protection performance, relatively low manufacturing cost and the like.

Description

[0001] technical field [0002] The invention relates to an electric chain hoist, in particular to an electric chain hoist using a voltage-type vector control frequency converter. Background technique [0003] As we all know, the electric chain hoist is a very widely used light and small lifting equipment, which is used to carry various light materials and is used in various occasions that need to carry light and small materials. In industrially developed countries, the use of electric chain hoists has accounted for more than 80% of the entire electric hoist market, while the current market share in our country is only about 10%. This product is still an emerging industry in my country, and the national annual output in 2010 was less than 100,000 units, but it has shown a momentum of rapid development in 2010, and the output of several major manufacturers in 2010 has doubled compared to 2009 more than one time. Since this product has a huge market both at home and abroad, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D1/46B66D1/28B66D5/30
Inventor 张建祖
Owner 张建祖