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Twin driving chain hoister

A hoist and double-drive technology, applied in the field of high-efficiency self-locking hoist, can solve the problems of low energy utilization rate, poor controllability and reliability of the hoisting machine, and achieve the effect of compact structure, high reliability and high energy utilization rate

Active Publication Date: 2009-05-06
SICHUAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the low energy utilization rate, poor controllability and reliability of current winches, the present invention provides a winch structure with compact structure, small volume, high energy utilization rate, good controllability and reliability

Method used

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Examples

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Embodiment Construction

[0018] see figure 1 , figure 2 This double transmission chain hoist has a driver, a transmission mechanism and a reel that are linked in sequence. The transmission mechanism is two sets, one of which is a lifting transmission mechanism, and the other is a lowering transmission mechanism.

[0019] The output shaft 1 of the driver is equipped with a spur gear 3, and an internal ring gear 8 is provided on the edge of the reel 11, and a spur gear 9 is arranged on the reel shaft.

[0020] The lifting transmission mechanism adopts a spur gear transmission pair. The spur gear transmission pair has a coaxial input spur gear 2 and an output spur gear 10. The input spur gear 2 meshes with the drive output shaft spur gear 3, and the output spur gear 10 meshes with the internal teeth of the reel. The ring 8 meshes, and the output spur gear 10 contains an overrunning clutch. Also can contain overrunning clutch in input spur gear 2, input spur gear 2, output spur gear 10, arbitrary one c...

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Abstract

The invention discloses a hoister with dual transmission chains. The hoister comprises a driver, two transmission mechanisms and a drum, which are sequentially connected one after another, wherein, one transmission mechanism is an ascending transmission mechanism and the other one is a descending transmission mechanism; the ascending transmission mechanism adopts a straight gear transmission pair and the descending transmission mechanism is provided with a worm and worm rod transmission pair. The hoister uses the straight gear transmission chain with high transmission efficiency when hoisting the heavy article and automatically uses the worm and worm rod transmission chain with the self-locking function during the descending process; the two transmission chains can reliably achieve the object that the energy utilization ratio can be improved when the hoister ascends and the brake disc (belt) can be removed when the hoister descends, thus improving the controllability and the reliability and reducing the weight of the equipment.

Description

technical field [0001] The invention belongs to the field of lifting mechanical transmission, and relates to a high-efficiency self-locking hoist with double transmission chains of spur gears and worm gears. The hoist uses a high-efficiency spur gear transmission chain when lifting heavy objects. Converted to a worm gear drive chain with self-locking function. Background technique [0002] The hoist has important uses in many fields, and its structure and principle are as follows: [0003] The worm gear and worm with self-locking function are directly used in the ascending and descending work. This structure utilizes the self-locking function of the worm gear and worm pair. The descending step of the heavy object requires the speed regulation and braking of the brake disc (belt). Good controllability. But because the worm and gear pair with self-locking function is used in the ascending process, the transmission efficiency is low (about 45%) and the heat generation is larg...

Claims

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Application Information

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IPC IPC(8): B66D1/14B66D1/22B66D1/08B66D1/12
Inventor 廖俊必袁洪回林传华郑红严霜吴圣路吴瑞
Owner SICHUAN UNIV
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