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Braking device for hand-drive block

A brake device and manual hoist technology, applied in hoisting devices and other directions, can solve the problems of insufficient locking force, affecting the life of the friction plate, wear of the friction plate, etc., to improve braking safety, facilitate assembly and maintenance, and improve The effect of cooling effect

Active Publication Date: 2016-11-16
维多利科技(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the manual hoist available in the market generally adopts the traditional friction braking mechanism with the ratchet and the friction plate separated. The friction causes the wear of the friction plate, which affects the life of the friction plate. In addition, it is easy to under-install or miss-install during assembly, which directly affects the effect of use, or even fails.
Moreover, the traditional friction plate only relies on the static friction force between the friction plate and the brake plate to provide the locking force in the locked state, resulting in insufficient locking force

Method used

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  • Braking device for hand-drive block
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  • Braking device for hand-drive block

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Embodiment Construction

[0019] The standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be customized according to the instructions and the accompanying drawings. The specific connection methods of each part adopt mature bolts, rivets, welding in the prior art , pasting and other conventional means, will not be described in detail here.

[0020] refer to Figure 1-5 , a specific embodiment of the present invention includes a transmission shaft 2 and a brake shaft 1 coaxially connected with the transmission shaft, a transmission mechanism 6 is sleeved on the transmission shaft 2, a reversing hand wheel 5 and a brake A ratchet 7 is arranged between the moving disc 3, the reversing handwheel 5 and the brake disc 3, and the friction plates 4 are fixedly arranged on both sides of the ratchet 7; the surface of the brake disc 3 is provided with several limit positions through the first spring body 8 The ball 9 and the surface of the friction plate ...

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Abstract

The invention discloses a braking device for a hand-drive block. The braking device comprises a transmission shaft and a braking shaft coaxially connected with the transmission shaft, wherein a transmission mechanism is connected on the transmission shaft in a sleeving manner; a reversing hand wheel and a brake disc are connected on the braking shaft in a sleeving manner; a ratchet wheel is arranged between the reversing hand wheel and the brake disc; friction pieces are arranged on the two sides of the ratchet wheel; a plurality of limiting balls are arranged on the surface of the brake disc through first spring bodies; a plurality of limiting grooves are formed in the surfaces, in contact with the brake disc, of the friction pieces in the radial direction; and the limiting balls are in selective clamping fit with the limiting grooves. According to the braking device, defects of the prior art can be improved, and when the braking device is static, the locking force of the braking device is improved.

Description

technical field [0001] The invention relates to a mechanical hoisting mechanism, in particular to a manual hoist braking device. Background technique [0002] At present, the manual hoist available in the market generally adopts the traditional friction braking mechanism with the ratchet and the friction plate separated. The friction causes the wear of the friction plate, which affects the life of the friction plate. In addition, it is easy to under-install or miss-install during assembly, which directly affects the effect of use, or even fails. Moreover, the traditional friction plate only relies on the static friction force between the friction plate and the brake plate to provide the locking force in the locked state, resulting in insufficient locking force. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a manual hoist braking device, which can solve the deficiencies of the prior art and improve the locking ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D5/14
CPCB66D5/14
Inventor 张景东
Owner 维多利科技(江苏)有限公司
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