Double-brake loop chain electric hoist

An electric chain hoist and electric hoist technology, applied in the direction of hoisting device, spring mechanism, etc., can solve problems such as safety accidents, inability to provide sufficient safety measures, etc., achieve high safety, small falling stroke, and improve safety performance Effect

Active Publication Date: 2013-09-18
江苏鼎力重工集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the traditional electric hoist has only one braking device to deal with emergencies, and cannot provide sufficient safety measures. However, the electric hoist is mostly used for lifting heavy objects. When the heavy objects lifted on the hook accidentally fall, it is easy to cause serious security incident

Method used

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  • Double-brake loop chain electric hoist
  • Double-brake loop chain electric hoist
  • Double-brake loop chain electric hoist

Examples

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Embodiment Construction

[0020] see Figure 1~3 , the present invention relates to a double-braking electric chain hoist, the electric hoist includes a reduction box 1, a motor 2, a chain 3, a sprocket 4 and a hook 5, the motor 2 is connected to the input shaft of the reduction box 1, The sprocket 4 is set on the output shaft of the reduction box 1, the motor 2 is fixed on the reduction box 1, and the reduction box 1 is a reduction mechanism using a parallel shaft multi-stage transmission wheel, that is, the box of the reduction box 1 The first shaft 1.2, the second shaft 1.3, the third shaft 1.4 and the fourth shaft 1.5 are installed in the body 1.1, and the first transmission wheel 1.6, The secondary transmission wheel 1.7 and the tertiary transmission wheel 1.8, the first shaft 1.2 drives the second shaft 1.3 through engagement with the primary transmission wheel 1.6, and the second shaft 1.3 transmits through the engagement with the secondary transmission wheel 1.7 The third shaft 1.4 is transmit...

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PUM

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Abstract

The invention relates to a double-brake loop chain electric hoist which comprises a reduction gearbox (1), a motor (2), a chain (3), a chain wheel (4) and a lifting hook (5), wherein the motor (2) is connected with an input shaft of the reduction gearbox (1); the chain wheel (4) is sleeved on an output shaft of the reduction gearbox (1); one end of the chain (3) is wound on the chain wheel (4), and the other end is connected with the lifting hook (5); a first-level transmission wheel (1.6) is rotatably arranged on a second shaft (1.3) through thread; a brake disc (1.10) is sleeved on the second shaft (1.3) and composed of a sleeve (1.10.1) and an annular flange (1.10.2) arranged on the sleeve (1.10.1); a ratchet mechanism (1.11) is movably sleeved on the sleeve (1.10.1); and the left and right sides of a ratchet of the ratchet mechanism (1.11) are provided with a friction plate (1.12) respectively. The double-brake loop chain electric hoist provided by the invention has dual-protection function.

Description

technical field [0001] The invention relates to an electric hoist, in particular to a chain-type electric hoist with double braking functions. Background technique [0002] At present, electric chain hoists are composed of motors, gearboxes, chains, sprockets and hooks. The output end of the motor is connected to the input shaft of the gearbox. The output shaft of the gearbox is equipped with a sprocket. on the wheel, and the other end is connected with the hook. The structure of the conventional reduction box is as follows: Figure 4 As shown, the first shaft, the second shaft, the third shaft and the fourth shaft are installed inside the box of the reduction box. The first shaft is the input shaft of the reduction box connected to the output end of the motor, and the fourth shaft is the reduction The output shaft of the box is set with a sprocket, the transmission between the first shaft and the second shaft is carried out through a primary transmission wheel, the transmis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66D5/14B66D1/20B66D1/14
Inventor 周其忠卢光明
Owner 江苏鼎力重工集团有限公司
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