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Braking drum safety device

A technology of safety device and brake drum, which is applied in the direction of hoisting device, etc., can solve the problems of no effect, "sliding car" of the drum, and large motor shaft, so as to improve safety, scientific and reasonable design, and manufacture Fast and reliable results

Inactive Publication Date: 2011-04-20
徐拴芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing motor shaft brake always has an insurmountable hidden danger, that is, due to the heavy load on the motor shaft, once the shaft breaks, the brake will not have any effect, and the reel will "slip" Major accident

Method used

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Examples

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Embodiment Construction

[0015] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.

[0016] This embodiment takes the electric hoist as an example, such as figure 1 shown. The electric hoist is composed of a motor 1, a reducer 2, and a reel 3. The motor drives the reducer through the motor shaft. The output shaft of the reducer is connected to one side of the reel and drives the reel to rotate. The brake reel safety device is fixed on the other side of the reel, and the specific connection form is: a brake reducer 4 is fixed on the other side of the reel, and the brake reducer is fixed by an adjustable fastening bolt 6 A secondary brake 5 is fixed coaxially. The structure of the secondary brake is: a square joint 8 is fixed on the transmission shaft 13 of the brake reducer in the secondary brake. The square joint is square ...

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Abstract

The present invention relates to a reel-stopping safety device for an electric block and a windlass. The main technical points are as follows: a brake reductor is fixed to the other side of the reel; a secondary brake is coaxially arranged on the brake reductor; a four-way connector is fixed to a transmission shaft of the brake reductor in the secondary brake; a friction sheave is coaxially sleeved in the radial direction of the four-way connector; a brake disc and a winding seat are respectively arranged inside the secondary brake and are coaxial with the friction sheave; the winding seat isfixed to the secondary brake, and magnet coils and a spring are uniformly arranged in the radial direction of the winding seat; the brake disc is arranged between the friction sheave and the winding seat. The safety device is simple in overall structure, and rational and scientific in design. The device can effectively ensure a secondary braking after shaft rupture of the motor shaft or other sudden accidents. The braking is quick and reliable. The safety of hoisting transportation is improved. The security of life and property of people is ensured. The device is suitable for being used in occasions where the transportation and hoisting torsion is large, such as mine, metallurgy and hoisting, etc.

Description

technical field [0001] The invention relates to the field of hoisting and transportation, in particular to a brake drum safety device for an electric hoist and a winch. Background technique [0002] The reel of electric hoist and winch in lifting equipment is usually braked by braking the motor shaft. The braking of the motor shaft is divided into external brake and built-in brake. The external brake is to install a disc brake on the motor shaft between the motor and the reducer. The motor generally uses an asynchronous motor; the built-in brake is to brake through the brake disc in the motor. motor. Since lifting equipment is a special product, sufficient safety must be ensured, so the quality requirements for drums, wire ropes, motors, motor shafts and other products are relatively high. However, the existing motor shaft brake always has an insurmountable hidden danger, that is, due to the heavy load on the motor shaft, once the shaft breaks, the brake will not have any ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66D5/14B66D5/30
Inventor 毕鉴华
Owner 徐拴芳
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