CN223150126U

CN223150126U - A hook installation structure for a crane

Info

Publication number: CN223150126U
Application number: CN202422546866.4U
Authority: CN
Inventors: 邱成国; 王嵩; 张兰宾
Original assignee: Tianjin Jindao Heavy Industry Machinery Co ltd
Current assignee: Tianjin Jindao Heavy Industry Machinery Co ltd
Priority date: 2024-10-22
Filing date: 2024-10-22
Publication date: 2025-07-25
Anticipated expiration: 2034-10-22

Abstract

The utility model belongs to the field of mechanical lifting, especially a hook installation structure of a crane, including: a first pulley, a second pulley, and a wire rope; the first pulley is installed on the boom and is located at the end where the boom is connected to the hook; the second pulley is in contact with the first pulley and is away from the end where the boom is connected to the hook; one end of the wire rope is connected to the winch, passes between the first pulley and the second pulley, passes through the third pulley inside the hook, and is fixed inside the boom through the other side of the first pulley. The utility model uses two pulleys arranged side by side, and the first pulley always isolates the wire ropes on both sides when the boom swings. When the boom moves, the wire ropes on both sides are synchronously offset, which effectively avoids the entanglement of the wire ropes, is conducive to normal operation, and effectively improves work efficiency.

Description

Lifting hook mounting structure of loop wheel machine

Technical Field

The utility model belongs to the field of mechanical lifting, and particularly relates to a lifting hook mounting structure of a crane.

Background

In the swing process of the suspension arm of the crane, a steel wire rope of the multi-multiplying power pulley block is easy to wind when approaching, so that the normal work of the crane is inconvenient, and the working efficiency is affected.

Chinese patent CN210855056U discloses a novel boom crane of a hoisting wire rope winding system, one end of the boom crane hoisting wire rope is connected with a hoisting mechanism, and the other end is fixed on a boom end section beam by a straightening device and a rope locking device. The upper end of the swing pulley frame is fixed at the middle position of the boom end section beam through a pin shaft, the lower end of the swing pulley frame is provided with an upper pulley mounting frame, an upper pulley is mounted in the upper pulley mounting frame, a lower pulley mounting clamp plate is arranged below the swing pulley frame, and lower pulleys are symmetrically mounted at two ends of the lower pulley mounting clamp plate.

The patent realizes preventing the steel wire rope from twisting through structures such as an arm end pulley, a straightening device, a rope locking device, a swinging pulley frame and the like, however, the devices can increase the burden of a system and consume more cost and resources.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art and provides the lifting hook mounting structure of the crane, which has the advantages of simple structure and low cost and can effectively prevent a steel wire rope from being wound.

The technical scheme adopted for solving the technical problems is as follows:

The utility model provides a lifting hook mounting structure of a crane, which comprises a first pulley, a second pulley and a steel wire rope, wherein the first pulley is mounted on a suspension arm and is positioned at one end of the suspension arm connected with a lifting hook, the second pulley is contacted with the first pulley and is far away from one end of the suspension arm connected with the lifting hook, one end of the steel wire rope is connected with a winch, the winch is wound between the first pulley and the second pulley, the steel wire rope passes through a third pulley in the lifting hook and is fixed in the suspension arm through the other side of the first pulley, when the suspension arm stretches outwards from an initial state, the lifting hook falls on the inner side of the suspension arm, the steel wire rope passes through the first pulley and the second pulley from the top surface of the second pulley to one side of the third pulley in the lifting hook, the steel wire rope wound on the other side of the lifting hook passes through the other side of the first pulley, and when the suspension arm stretches inwards from the initial state, the lifting hook gradually drops on the outer side of the suspension arm, and the steel wire rope wound on the other side of the lifting hook passes through the first pulley and the second pulley from the bottom surface of the second pulley to the top surface of the third pulley is directly connected with the lifting hook.

Further, the suspension arm is provided with a first suspension arm and a second suspension arm, one end of the first suspension arm is connected with the lifting hook, the other end of the first suspension arm is connected with the second suspension arm, the other end of the second suspension arm is arranged on the base, the first pulley and the second pulley are arranged on the first suspension arm connected with the lifting hook, and the winch is located at one end, close to the base, of the second suspension arm and is arranged on the top surface of the second suspension arm.

Further, the device also comprises a first guide pulley and a second guide pulley, wherein the first guide pulley is positioned at one end of the first suspension arm close to the second suspension arm and is arranged on the top surface of the first suspension arm, and the second guide pulley is positioned at one end of the second suspension arm close to the first suspension arm and is arranged on the top surface of the second suspension arm.

Further, the first guide pulley and the second guide pulley are respectively arranged on the first suspension arm and the second suspension arm through the lug plates.

Further, the models of the first pulley and the second pulley are identical.

The utility model has the advantages and positive effects that:

According to the utility model, the first pulleys and the second pulleys which are arranged side by side are adopted, when the suspension arm stretches outwards from the initial state, the steel wire ropes at the two sides can synchronously deflect to the right end, when the suspension arm contracts inwards from the initial state, the steel wire ropes at the two sides can synchronously deflect to the left end, and the distance between the two pulleys is always kept during relative movement, so that the steel wire ropes are effectively prevented from being mutually close to each other, winding and twisting are avoided, normal operation is facilitated, and the working efficiency is effectively improved.

Drawings

FIG. 1 is a schematic view of a boom in an initial state;

FIG. 2 is an enlarged partial schematic view of the boom of the present utility model in an initial state;

FIG. 3 is a schematic view of the boom of the present utility model in an extended configuration;

FIG. 4 is an enlarged partial schematic view of the boom of the present utility model when extended;

FIG. 5 is a schematic view of the boom of the present utility model in a contracted configuration;

Fig. 6 is a partially enlarged schematic view of the boom of the present utility model when retracted.

Wherein the above figures include the following reference numerals:

1-boom, 101-outside, 102-inside, 11-first boom, 12-second boom, 2-first pulley, 3-second pulley, 4-wire rope, 5-winch, 6-lifting hook, 61-third pulley, 7-first guide pulley, 8-second guide pulley, 9-lug plate.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

As shown in fig. 1 to 6, the present utility model provides a hook mounting structure of a crane, comprising a first pulley 2, a second pulley 3, and a wire rope 4.

As shown in figure 1, a first pulley 2 is arranged on a suspension arm 1 and is positioned at one end of the suspension arm 1 connected with a lifting hook 6, a second pulley 3 is contacted with the first pulley 2 and is far away from one end of the suspension arm 1 connected with the lifting hook 6, one end of a steel wire rope 4 is connected with a winch 5, bypasses between the first pulley 2 and the second pulley 3, passes through a third pulley 61 in the lifting hook 6 and is fixed in the suspension arm 1 through the other side of the first pulley 2. According to the utility model, through the two pulleys arranged side by side, the steel wire ropes 4 on two sides are always separated by the first pulley 2 when the suspension arm 1 swings, and the steel wire ropes 4 on two sides synchronously deviate when the suspension arm 1 moves, so that the winding of the steel wire ropes 4 is effectively avoided, the normal operation of work is facilitated, and the work efficiency is effectively improved.

As shown in fig. 1, 3 and 5, the boom 1 is provided with a first boom 11 and a second boom 12, one end of the first boom 11 is connected with the lifting hook 6, the other end of the first boom 11 is connected with the second boom 12, the other end of the second boom 12 is installed on the base, the first pulley 2 and the second pulley 3 are both installed on the first boom 11 connected with the lifting hook 6, and the winch 5 is located at one end, close to the base, of the second boom 12 and installed on the top surface of the second boom 12. According to the utility model, the first suspension arm 11 and the second suspension arm 12 are arranged, so that the crane can better move and operate, the working range is increased, and the normal work of the crane is realized.

In order to facilitate the guiding of the wire rope 4, the first guiding pulley 7 is located at one end of the first boom 11 close to the second boom 12 and is mounted on the top surface of the first boom 11, and the second guiding pulley 8 is located at one end of the second boom 12 close to the first boom 11 and is mounted on the top surface of the second boom 12. Specifically, the first guide pulley 7 and the second guide pulley 8 may be mounted on the first boom 11 and the second boom 12 via the ear plate 9, respectively. The first pulley 2 and the second pulley 3 are identical in model number.

The application method of the utility model comprises the following steps:

When the boom 1 is extended from the starting position to the outside as shown in fig. 3-4, the hanging hook 6 falls on the inner side 102 of the boom 1, the wire rope 4 passes through the first pulley 2 from the top surface of the second pulley 3, passes between the second pulley 3 and the third pulley 61 side in the hanging hook 6, the wire rope 4 wound on the other side of the hanging hook 6 passes through the other side of the first pulley 2, when the boom 1 is contracted from the starting position to the inside as shown in fig. 5-6, the hanging hook 6 gradually falls on the outer side 101 of the boom 1, the wire rope 4 passes through the space between the first pulley 2 and the second pulley 3 from the bottom surface of the second pulley 3, passes through the top surface of the first pulley 2, passes through the third pulley 61 side in the hanging hook 6, and the wire rope 4 wound on the other side of the hanging hook 6 is directly connected with the boom 1.

According to the utility model, the first pulley 2 and the second pulley 3 which are arranged side by side are adopted, when the suspension arm 1 stretches outwards from an initial state, the steel wire ropes 4 at two sides can synchronously shift to the right end, when the suspension arm 1 contracts inwards from the initial state, the steel wire ropes 4 at two sides can synchronously shift to the left end, and the distance between the two pulleys is always kept during relative movement, so that the steel wire ropes 4 are effectively prevented from being mutually close to each other, winding and twisting are avoided, normal operation of work is facilitated, and the work efficiency is effectively improved.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A hook mounting structure for a crane, characterized by comprising:

A first pulley (2), the first pulley (2) being mounted on the boom (1) and located at an end where the boom (1) is connected to the hook (6);

a second pulley (3), the second pulley (3) being in contact with the first pulley (2) and being away from an end where the boom (1) is connected to the hook (6);

A steel wire rope (4), one end of which is connected to a winch (5), passes between the first pulley (2) and the second pulley (3), passes through a third pulley (61) inside the hook (6), and passes through the other side of the first pulley (2) and is fixed inside the boom (1);

When the boom (1) extends outward from the initial state, the hook (6) hangs down on the inner side (102) of the boom (1), and the wire rope (4) passes through the first pulley (2) and the second pulley (3) from the top surface of the second pulley (3) to one side of the third pulley (61) inside the hook (6), and the wire rope (4) wound around the other side of the hook (6) passes through the other side of the first pulley (2); when the boom (1) shrinks inward from the initial state, the hook (6) gradually hangs down on the outer side (101) of the boom (1), and the wire rope (4) passes through the first pulley (2) and the second pulley (3) from the bottom surface of the second pulley (3), passes through the top surface of the first pulley (2), and extends to one side of the third pulley (61) inside the hook (6), and the wire rope (4) wound around the other side of the hook (6) is directly connected to the boom (1).

2. The hook mounting structure of a crane according to claim 1 is characterized in that the boom (1) has a first boom (11) and a second boom (12), one end of the first boom (11) is connected to the hook (6), and the other end is connected to the second boom (12), and the other end of the second boom (12) is installed on the base, the first pulley (2) and the second pulley (3) are both installed on the first boom (11) connected to the hook (6), and the winch (5) is located at one end of the second boom (12) close to the base and is installed on the top surface of the second boom (12).

3. The hook mounting structure of the crane according to claim 2 is characterized in that it also includes a first guide pulley (7) and a second guide pulley (8), the first guide pulley (7) is located at one end of the first boom (11) close to the second boom (12), and is installed on the top surface of the first boom (11), and the second guide pulley (8) is located at one end of the second boom (12) close to the first boom (11), and is installed on the top surface of the second boom (12).

4. The hook mounting structure of a crane according to claim 3 is characterized in that the first guide pulley (7) and the second guide pulley (8) are respectively mounted on the first boom (11) and the second boom (12) through ear plates (9).

5. The hook mounting structure of a crane according to claim 4 is characterized in that the models of the first pulley (2) and the second pulley (3) are exactly the same.