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Free hook falling damping mechanism of winch and winch

A technology of damping mechanism and hoisting machine, which is applied in the direction of hoisting device and clockwork mechanism, etc. It can solve the problems of increasing equipment cost and friction plate wear, and achieve the effect of avoiding damage, avoiding installation accidents, and avoiding the loss of braking equipment

Pending Publication Date: 2018-05-04
ZHUHAI TIANLI HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, no matter whether the friction plate controls the braking in time, it will cause a lot of wear and tear on the friction plate itself, and the friction plate needs to be replaced frequently, which will also increase the cost of the equipment

Method used

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  • Free hook falling damping mechanism of winch and winch
  • Free hook falling damping mechanism of winch and winch
  • Free hook falling damping mechanism of winch and winch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] see Figure 1 to Figure 3 , the hoist of this embodiment includes a reel 1 and a hoist free-falling hook damping mechanism 2, the hoisting gear ring 12 is fixedly installed outside the drum 1, and the hoisting machine free-falling hook damping mechanism 2 is driven by the hoisting gear ring 12 and the reel 1 connect.

[0023] The hoist free-fall hook damping mechanism 2 includes a mounting frame 21, a hydraulic motor 22, a damping ring gear 23, a shaft sleeve 24 and an overflow valve. Optionally, the hydraulic motor may be a bidirectional quantitative hydraulic motor or a bidirectional variable hydraulic motor.

[0024] The installation frame 21 is installed on one side of the reel 1 , and the hydraulic motor 22 is installed on one end surface of the installation frame 21 . The hydraulic motor 22 has an output shaft 221, an oil inlet and an oil outlet. Optionally, the overflow valve may be built into the hydraulic motor 22 , that is, installed inside the hydraulic mo...

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PUM

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Abstract

The invention provides a free hook falling damping mechanism of a winch and the winch. The free hook falling damping mechanism comprises a mounting frame, a hydraulic motor, a damping gear ring, a shaft sleeve and an overflow valve; the mounting frame is mounted on one side of a coiling block of the winch; the hydraulic motor is mounted on one end surface of the mounting frame and comprises an output shaft, an oil inlet and an oil outlet; the damping gear ring meshes with a winching gear ring arranged on the coiling block; the shaft sleeve has a central hole and is supported on the mounting frame through at least two bearings; the damping gear ring is fixed to the shaft sleeve in a sleeving manner; the output shaft is mounted in the central hole; and the overflow valve communicates with the oil outlet. According to the free hook falling damping mechanism of the winch and the winch, the winch can be braked effectively during free hook falling, construction equipment can be protected, and the equipment cost can be reduced.

Description

technical field [0001] The invention relates to the field of hoist braking devices, in particular to a hoist free-fall hook damping mechanism and the hoist. Background technique [0002] At present, the winch equipped with the deceleration mechanism of the crane has free-fall hook and braking function. The working principle of the free-fall hook is to completely disengage the hydraulic motor and deceleration mechanism from the reel, so that the hoisted weight can freely fall. The hoist can drive the hoist drum to rotate freely by the gravity of the heavy object through the wire rope without the action of the driving force. This function not only greatly improves the work efficiency, but also reduces the wear of the hydraulic components. The working principle of the braking function is that when the hoisted object falls to the predetermined position, the output shaft of the reducer is braked by the braking mechanism, so that the reel is braked. [0003] The existing hoist fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D1/08B66D1/28
CPCB66D1/08B66D1/28
Inventor 罗伟平何海胜吴志成
Owner ZHUHAI TIANLI HEAVY IND