Steel wire rope pre-tightening device and crane

A technology of steel wire rope and clamping device, applied in the direction of hoisting device, transportation and packaging, spring mechanism, etc., can solve the problems of wire rope pre-tightening force not meeting the requirements, inability to work, and the rope is not tight.

Pending Publication Date: 2020-10-30
ZHEJIANG SANY EQUIP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] When large-scale crawler cranes are in operation, it is generally necessary to hoist heavy objects from a high place. After the heavy objects are hoisted, the hook must be retracted for the next step. The pre-tightening force of the raised steel wire rope does not meet the requirements, it is easy to mess up the rope, and the rope is not tightly wound. When the heavy object is lowered, the steel wire rope is prone to rope trapping. Operation

Method used

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  • Steel wire rope pre-tightening device and crane
  • Steel wire rope pre-tightening device and crane
  • Steel wire rope pre-tightening device and crane

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0029] It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0030] Please refer to figure 1 , figure 2 and image 3, the embodiment of the present application provides a wire rope pretensioning device, the wire rope pretensioning device includes a frame 100, two chain transmission devices 200 and a driving device 300, the two chain transmission devices 200 are arranged side by side on the frame 100, each A chain tr...

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Abstract

The invention provides a steel wire rope pre-tightening device and a crane. The steel wire rope pre-tightening device comprises a rack, two chain transmission devices and a driving device, wherein thetwo chain transmission devices are arranged on the rack side by side; each chain transmission device comprises a transmission chain, a chain driving wheel and a chain driven wheel; the transmission chain is arranged on the chain driving wheel and the chain driven wheel in a sleeving manner; the chain driving wheel and the chain driven wheel are rotatably arranged on the rack; and the two transmission chains are used for tightly holding a steel wire rope passing between the two chain transmission devices. When the steel wire rope is retracted, the steel wire rope can drive the two transmissionchains to drive synchronously; the driving device is arranged on the rack and is used for applying reverse moment of force to each chain driving wheel, so that each transmission chain generates pre-tightening force, the direction of which is opposite to the transmission direction of the transmission chain. The steel wire rope pre-tightening device can provide pre-tightening force when the steel wire rope is retracted, improves the quality of rope arrangement, and prolongs the service life of the steel wire rope.

Description

technical field [0001] The present application relates to the technical field of crane machinery, in particular, to a wire rope pretensioning device and a crane. Background technique [0002] When large-scale crawler cranes are in operation, it is generally necessary to hoist heavy objects from a high place. After the heavy objects are hoisted, the hook must be retracted for the next step. The pre-tightening force of the raised steel wire rope does not meet the requirements, it is easy to mess up the rope, and the rope is not tightly wound. When the heavy object is lowered, the steel wire rope is prone to rope trapping. Operation. Contents of the invention [0003] The purpose of the embodiments of the present application is to provide a steel wire rope pretensioning device, which can provide a pretensioning force when the steel wire rope is taken up, improve the quality of the rope arrangement, and prolong the service life of the steel wire rope. [0004] The embodiment...

Claims

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Application Information

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IPC IPC(8): B66C13/00B66D1/36B66D1/52
CPCB66C13/00B66D1/36B66D1/52
Inventor 韩国瑞唐鹏卓鹏
Owner ZHEJIANG SANY EQUIP
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