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Normally engaging/disengaging dual-purpose brake device of crane

A dual-function, crane technology, applied in the direction of hoisting device, etc., can solve the problem of large braking torque

Active Publication Date: 2008-07-16
哈尔滨工程机械制造有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The brake can be set on the terminal drum, usually a band brake, which is safe and reliable but has a large braking torque

Method used

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  • Normally engaging/disengaging dual-purpose brake device of crane
  • Normally engaging/disengaging dual-purpose brake device of crane
  • Normally engaging/disengaging dual-purpose brake device of crane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0005] The brake band 3 and the brake band I 4 are wrapped on the reel brake drum 26, one end of the brake band 3 is fixed on the base 25 through the fixed shaft 5, and the brake band I 4 is connected with the crank arm 8 through the pin shaft II 10 , the bolt 1 and the stage clip 2 are used to connect the brake band 3 and the brake band 14, the crank arm 8 is fixed on the base 25 through the fixed shaft 5, and the oil cylinder 18 is fixed on the bracket 13 and fixed on the machine through the fixed shaft 20. On the seat 25, the left end of the brake spring 15 is pushed against the bracket 13, and the right end transmits the spring force to the tappet 14 through the baffle plate 16, and the left end of the tappet 14 is connected with the ear plate 7 through the adjusting bolt 11, and the ear plate 7 passes through the pin 6 is connected with crank arm 8. Ear plate 7 is an elongated hole. Working process of the present invention: pin shaft, lug plate, crank arm, pin shaft I, p...

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PUM

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Abstract

The invention discloses a crane brake, with open-close functions. It is characterized in that: the brake belts (3, 4) are coiled on the drum brake (26); one end of brake belt (3) via fixed axle (5) is fixed on the base (25); the brake belt (4) via pin (10) is connected to the bended arm (8); the bolt (1) and compress spring (2) are used to connect the brake belt (3) and the brake belt (4); the bended arm (8) via fixed axle (5) is fixed on the base (25); the cylinder (18) is fixed on the bracket (13) and via fixed axle (20) fixed on the base 925); the left end of brake spring (15) is supported on the bracket (13), while the right end via baffle plate (16) transforms the spring force to the support rod (14); the left end of support rod (14) via adjusting bolt (11) is connected to the ear plate (7); the ear plate (7) via pin (6) is connected to the bended arm (8). The invention has the advantages of simple structure, lower cost, high safety, and open-close function.

Description

Technical field: [0001] The invention relates to a crane brake, in particular to a double-function brake device of normally closed and normally open for a crane. Background technique: [0002] The crane hoisting mechanism (wire rope drum winding type) is the most critical and important part of the crane. The reel of the lifting mechanism rotates to realize the lifting of heavy objects. According to standard specifications, the lifting mechanism must be equipped with a reliable brake. The brake is divided into two types: normally closed and normally open. The working principle of the normally closed brake is that the brake automatically opens when the movement starts, and the brake automatically brakes when the movement stops (spring force braking). The working principle of the normally open brake is that the movement start brake is opened by the driver's manipulation, and the movement stop brake is braked by the driver's manipulation. The brake can be set on the terminal ...

Claims

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Application Information

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IPC IPC(8): B66D5/10
Inventor 于长柏焦明达
Owner 哈尔滨工程机械制造有限责任公司
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