Manual hoisting chain block

A technology of chain-reversing and driving sprocket, which is applied in portable hoisting devices, hoisting devices, etc., which can solve the problems of increased labor intensity of workers, inconvenient use and installation, and complex chain-reversing structure, and achieves light weight and convenient installation , Simple and compact structure

Active Publication Date: 2015-02-11
哈威光电科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of inverted chain has a complex structure, high manufacturing cost, and inconvenient use and installation. Especially after the first hoisting, it is necessary to reverse the empty travel of the endless chain on the driving sprocket to perform the second hoisting, which is labor-intensive and time-consuming, and increases the labor force of the workers. Labor intensity

Method used

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  • Manual hoisting chain block
  • Manual hoisting chain block
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Examples

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Embodiment Construction

[0022] Such as Figure 1-Figure 3 As shown, a kind of manual lifting chain involved in the present invention includes driving sprocket 8 and driven sprocket 1, and ring-shaped chain grooves 801 and 101 are respectively provided on driving sprocket 8 and driven sprocket 1, An annular closed driving chain 14 and a lifting chain 16 are respectively arranged in the annular chain grooves 801 and 101 of the driving sprocket 8 and the driven sprocket 1 . An eccentric sleeve 12 is arranged on the side of the driving sprocket 8 corresponding to the driven sprocket 1, and the eccentric sleeve 12 and the driving sprocket 8 are integrally structured, and a pin tooth is arranged between the driving sprocket 8 and the driven sprocket 1. The sleeve 4, the eccentric sleeve 12 is inserted into the central hole of the pin tooth sleeve 4, and a needle bearing B7 is installed between the eccentric sleeve 12 and the central hole of the pin gear sleeve 4.

[0023] An annular groove 401 is processe...

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PUM

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Abstract

The invention discloses a manual hoisting chain block. The manual hoisting chain block comprises a driving chain wheel, a driven chain wheel, a driving chain and a hoisting chain, wherein an eccentric sleeve is arranged on one side of the driving chain wheel; a pin gear sleeve is arranged between the driving chain wheel and the driven chain wheel, and gear pins are uniformly distributed on the pin gear sleeve; the eccentric sleeve is inserted in the pin gear sleeve; an outer gear sleeve is arranged on one side of the driven chain wheel; the outer gear sleeve is inserted in the pin gear sleeve and is engaged with a portion of gear pins; the amount of the teeth of the outer gear sleeve is one smaller than that of the gear pins; the sum of the diameter of the outer gear sleeve and duplex eccentric distance of the eccentric sleeve is equal to the pitch diameters of the gear pins; a connecting shaft sleeve is arranged in the driving chain wheel and the driven chain wheel; mounting plates are arranged at the two ends of the connecting shaft sleeve; the upper ends of the two mounting plates are connected with each other through a mounting sleeve; a boss is arranged on the outer wall of the pin gear sleeve; the boss is clamped outside the mounting sleeve. The manual hoisting chain block has the advantages of simple and compact structure, convenient use and mounting, low manufacturing cost, small size, low weight, no idle running of the driving chain, labor saving and time saving, and the labor intensity of operators is alleviated.

Description

technical field [0001] The invention relates to a hoisting machine, in particular to a manual hoisting back chain. Background technique [0002] "Inverted chain", also known as "chain hoist", is a manual lifting tool that is easy to use and easy to carry. , Warehouse and other installation operations are more important for open-air and non-electric operations. [0003] Commonly used upside-down chains at present are made up of housing, the gear group that is located in the housing, friction pair and ratchet anti-falling self-locking device. This type of inverted chain has a complex structure, high manufacturing cost, and inconvenient use and installation. Especially after the first hoisting, it is necessary to reverse the empty travel of the endless chain on the driving sprocket to perform the second hoisting, which is labor-intensive and time-consuming, and increases the labor force of the workers. Labor intensity. Contents of the invention [0004] The technical probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D3/16
CPCB66D3/16
Inventor 卢志文
Owner 哈威光电科技(苏州)有限公司
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