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A kind of pulley device and crane for crane

A technology for cranes and pulleys, which is applied in hoisting devices, portable lifting devices, mechanical equipment, etc. It can solve the problems that the wire rope is easy to fall out of the groove and affect the work of the crane, and achieves the effect of simple structure, preventing the wire rope from falling out of the groove, and being easy to use

Active Publication Date: 2019-12-31
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem in the prior art that the steel wire rope is easy to fall out of the groove and affect the operation of the crane, the embodiment of the present invention provides a pulley device for a crane and a crane

Method used

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  • A kind of pulley device and crane for crane
  • A kind of pulley device and crane for crane
  • A kind of pulley device and crane for crane

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] figure 1 It is a structural schematic diagram of a pulley device for a crane provided by an embodiment of the present invention, such as figure 1 As shown, the pulley device includes a pulley bracket and a fixed pulley 1, the pulley bracket includes two side plates 2 parallel to each other, the fixed pulley 1 is arranged between the two side plates 2, the axial direction of the fixed pulley 1 is aligned with the two The side plate 2 is vertical, and the pulley device also includes a rope-stopping assembly 3, which includes two arc-shaped rope-stopping plates and at least one first rope-stopping component.

[0031] Further, the pulley bracket also includes a mounting plate 4 on which two side plates 2 are vertically arranged, an...

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Abstract

The invention discloses a pulley device for a crane and the crane, and belongs to the field of mechanical lifting. The pulley device comprises a pulley support, a fixed pulley and a rope blocking assembly, the pulley support comprises two side plates which are oppositely arranged in parallel, the fixed pulley is arranged between the two side plates, the axial direction of the fixed pulley is perpendicular to the two side plates, the rope blocking assembly comprises two arc-shaped rope blocking plates and at least one first rope blocking component, the two arc-shaped rope blocking plates are arranged on the two side plates in a one-to-one correspondence mode, the two arc-shaped rope blocking plates are located between the two side plates, and when a steel wire rope falls off from a rope groove of the fixed pulley, the arc-shaped rope blocking plates can play a blocking role so that the steel wire rope can be prevented from falling on a pulley shaft; and the first rope blocking components comprise first rope blocking rods, the two ends of each first rope blocking rod are correspondingly connected to the two arc-shaped rope blocking plates, and the minimum distance between the first rope blocking components and the fixed pulley is smaller than the diameter of the steel wire rope so that the steel wire rope can be blocked by the first rope blocking components and can be prevented from falling off from the rope groove.

Description

technical field [0001] The invention relates to the field of hoisting machinery, in particular to a pulley device for a crane and the crane. Background technique [0002] A crane is a kind of equipment for lifting and transporting goods or personnel. The pulley device is its main power transmission component. The wire rope realizes the function of lifting and changing direction through the pulley block. The main hook of the crane adopts a multi-rate pulley block to lift goods, and the auxiliary hook adopts a single-rate pulley, which is used for hoisting small-tonnage goods or lifting personnel. It is easy to swing under the influence of inertia and inertia, and then cause the wire rope to jump and deflect, making the wire rope fall out of the pulley rope groove. [0003] A fixed pulley is generally arranged on the top of the boom of the crane, and the wire rope extends along the boom to the top of the boom and then walks around the fixed pulley and is connected with the su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66D3/04
CPCB66D3/04
Inventor 张光锋邓祖学
Owner WUHAN MARINE MACHINERY PLANT
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