CN216687100U

CN216687100U - Anti-rotation lifting hook of crane

Info

Publication number: CN216687100U
Application number: CN202123332589.XU
Authority: CN
Inventors: 沈兵
Original assignee: Suzhou Coolift Heavy Industry Co ltd
Current assignee: Suzhou Coolift Heavy Industry Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-06-07
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses an anti-rotation lifting hook of a crane, which is applied to the field of lifting hooks and has the technical scheme that the anti-rotation lifting hook comprises a body and an anti-rotation mechanism arranged on the body; the body comprises a shaft lever, pulley blocks are fixed on two sides of the shaft lever, a bearing is fixed between the pulley blocks, the bearing is positioned at the bottom end of the shaft lever and is not in contact with the shaft lever, and the bottom end of the bearing is rotatably connected with a lifting hook; the anti-rotation mechanism comprises two limiting rods, and the two limiting rods are rotationally connected with the shaft rod through connecting rods; when the anti-rotation mechanism rotates to the position below the shaft rod, the lifting hook is positioned between the limiting rods; has the technical effects that: when the goods are hung, the angle of the lifting hook connected below the bearing can be freely changed, the lifting hook is hung in a matching manner, after the goods are hung, the anti-rotation mechanism can be put down, the lifting hook is limited between the limiting rods by the anti-rotation mechanism, and the stability and the safety of the objects are ensured; the lifting hook angle adjusting device is simple in structure and convenient to operate, does not need to be additionally provided with a motor to change the angle of the lifting hook, and can be popularized in a large range.

Description

Anti-rotation lifting hook of crane

Technical Field

The utility model relates to the field of lifting hooks, in particular to an anti-rotation lifting hook of a crane.

Background

A lifting hook, known by the english name lifting hook, is the most common type of lifting device in a lifting machine, and the lifting hook is usually suspended on a steel wire rope of the lifting mechanism by means of a pulley block or the like. In modern building production, the hoist and mount of large tonnage is more and more, also more and more high to the requirement of hoist and mount connecting piece, current crane hook is the activity lifting hook usually, it hangs the goods to set up the convenience lifting hook like this, but when the hoist is hung and is got, the lifting hook of this kind of activity makes the goods rotate easily, produce unnecessary potential safety hazard, in order to guarantee the stability and the safety of object, current crane hook leads to the fact to produce and adopts the motor to drive the turned angle who changes the lifting hook, but this kind of lifting hook need additionally install driving motor, and is high in cost, and handle the easy wearing and tearing of drive gear that heavy weight goods made between motor and the lifting hook, be unfavorable for promoting on a large scale.

Therefore, there is a need for a crane hook with a simple structure, which can freely change the rotation angle of the hook for hanging goods and prevent the rotation of the hook.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-rotation lifting hook of a crane, which has the advantages of simple structure, capability of randomly changing the rotation angle of the lifting hook when hanging cargos and capability of preventing the rotation of the lifting hook during lifting.

The technical purpose of the utility model is realized by the following technical scheme: an anti-rotation hook of a crane comprises a body and an anti-rotation mechanism; the anti-rotation mechanism is arranged on the body; the body comprises a shaft lever, pulley blocks are fixed on two sides of the shaft lever, a bearing is fixed between the pulley blocks, the bearing is positioned at the bottom end of the shaft lever and is not in contact with the shaft lever, and the bottom end of the bearing is rotatably connected with a lifting hook; the anti-rotation mechanism comprises limiting rods arranged on two sides of the connecting rod, and the limiting rods on the two sides are rotatably connected with the shaft rod through the connecting rod; the anti-rotation mechanism is perpendicular to the shaft and can rotate along the radial direction of the shaft, and when the anti-rotation mechanism rotates below the shaft, the hook is located between the two limiting rods.

According to the technical scheme, the anti-rotation lifting hook of the crane is provided, when goods are hung, the angle of the lifting hook connected below the bearing in a rotating mode can be freely changed, the lifting hook is hung in cooperation with the goods, the anti-rotation mechanism can be put down when the goods are hung after the goods are hung, the anti-rotation mechanism limits the lifting hook between the limiting rods, and stability and safety of objects are guaranteed; the lifting hook angle adjusting device is simple in structure and convenient to operate, does not need to be additionally provided with a motor to change the angle of the lifting hook, and can be popularized in a large range.

The utility model is further arranged in that the limiting rod comprises a first supporting rod and a second supporting rod, when the anti-rotation mechanism rotates below the shaft rod, the first supporting rod is vertically downward, and the second supporting rod is obliquely bent at two sides of the lifting hook.

The utility model is further provided that one end of the connecting rod is movably sleeved on the shaft rod, and the other end of the connecting rod is movably sleeved on one end of the first supporting rod far away from the second supporting rod; and butterfly bolts are arranged at the joints of the connecting rod, the shaft lever and the second support rod and fix the connecting rod, the shaft lever and the second support rod.

Through the technical scheme, the limiting rod in the device can rotate around the center of a circle at the joint of the connecting rod and the second support rod, can rotate in cooperation with the rotation of the lifting hook, and guarantees the limiting effect of the lifting hook under various angles.

The pulley block further comprises a pulley shell and a rotating shaft, wherein the pulley shell is fixed at two ends of the shaft lever, the rotating shaft is rotatably arranged in the pulley shell, and the axis of the rotating shaft and the axis of the shaft lever are positioned on the same straight line.

The pulley shell is further provided with a disc-shaped hollow inner part, two curved through grooves are formed in the side surface of the pulley shell, and the curved through grooves lead to the inner part of the pulley shell.

The pulley is further provided with a steel wire rope wound inside the pulley shell, and the steel wire rope enters the pulley shell from the curved through groove.

Through the technical scheme, the steel wire rope of the crane enters the pulley shell from one curved through groove, then bypasses the rotating shaft and comes out from the other curved through groove, and the crane is simple and convenient.

The pulley shell is further provided with a connecting plate at one end close to the shaft rod, the upper end of the connecting plate is fixedly sleeved on the shaft rod and attached to the pulley shell, the lower end of the connecting plate is fixed with the bearing, and the bearing is fixed between the connecting plate and the two sides of the shaft rod.

The utility model is further arranged in that a fastening bolt is arranged on the bearing, one end of the fastening bolt is positioned outside the bearing, and the other end of the fastening bolt penetrates through the bearing and is contacted with the lifting hook.

The utility model is further provided that the fastening screw is in threaded connection with the bearing.

Through above-mentioned technical scheme, fastening bolt can further fix the turned angle of lifting hook, improves the bearing degree of lifting hook to heavy weight article.

In conclusion, the utility model has the following beneficial effects: according to the technical scheme, the anti-rotation lifting hook of the crane is provided, when goods are hung, the angle of the lifting hook connected below the bearing can be freely changed, the lifting hook is hung in a matched mode, when the goods are hung, the fastening bolt is screwed down to fix the angle of the lifting hook, and meanwhile the anti-rotation mechanism is put down and limits the lifting hook between the limiting rods, so that the stability and the safety of objects are guaranteed; the lifting hook angle adjusting device is simple in structure and convenient to operate, does not need to be additionally provided with a motor to change the angle of the lifting hook, and can be popularized in a large range.

Drawings

FIG. 1 is a schematic structural view of an anti-rotation hook of a crane according to the present embodiment;

FIG. 2 is a right side view of the anti-rotation hook of a crane of the present embodiment;

FIG. 3 is a front view of an anti-rotation hook of a crane of the present embodiment;

fig. 4 is an exploded view of the pulley block of the present embodiment.

Reference numerals are as follows: 1. a shaft lever; 2. a pulley block; 3. a bearing; 4. a hook; 5. a limiting rod; 6. a connecting rod; 7. a first support bar; 8. a second support bar; 9. a butterfly bolt; 10. a pulley housing; 11. a rotating shaft; 12. a curved through groove; 13. a wire rope; 14. a connecting plate; 15. and fastening the bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1, 3 and 4, an anti-rotation hook 4 of a crane comprises a body and an anti-rotation mechanism arranged on the body; the body comprises a shaft lever 1, pulley blocks 2 are fixed on two sides of the shaft lever 1, each pulley block 2 comprises a pulley shell 10 and a rotating shaft 11, the pulley shells 10 are fixed at two ends of the shaft lever 1, the rotating shafts 11 are rotatably arranged in the pulley shells 10, each pulley shell 10 is disc-shaped and hollow, two curved through grooves 12 are formed in the side surfaces of each pulley shell 10, the curved through grooves 12 are communicated with the inside of each pulley shell 10, the axes of the rotating shafts 11 and the shaft lever 1 are positioned on the same straight line, a steel wire rope 13 of a crane enters the pulley shells 10 from one curved through groove 12 and then goes out from the other curved through groove 12 by bypassing the rotating shafts 11, and the crane is simple and convenient;

referring to fig. 1 and 2, a connecting plate 14 is fixed at one end of the pulley housing 10 close to the shaft rod 1, the upper end of the connecting plate 14 is fixedly sleeved on the shaft rod 1 and attached to the pulley housing 10, the lower end of the connecting plate is fixed to the bearing 3, and the bearing 3 is fixed between the connecting plates 14 at two sides of the shaft rod 1. A bearing 3 is fixed between the pulley blocks 2, the bearing 3 is positioned at the bottom end of the shaft lever 1 and is not contacted with the shaft lever 1, and the bottom end of the bearing 3 is rotatably connected with a lifting hook 4; the bearing 3 is provided with a fastening bolt 15, one end of the fastening bolt 15 is positioned outside the bearing 3, the other end of the fastening bolt 15 penetrates through the bearing 3 to be in contact with the lifting hook 4, the fastening bolt 15 is in threaded connection with the bearing 3, the fastening bolt 15 can further fix the rotation angle of the lifting hook 4, and the bearing degree of the lifting hook 4 on heavy objects is improved;

referring to fig. 1 and 2, the anti-rotation mechanism includes two limiting rods 5, each limiting rod 5 includes a first supporting rod 7 and a second supporting rod 8, the two limiting rods 5 are rotatably connected to the shaft rod 1 through a connecting rod 6, one end of the connecting rod 6 is movably sleeved on the shaft rod 1, and the other end of the connecting rod is movably sleeved on one end of the first supporting rod 7 away from the second supporting rod 8; the connecting rod 6, the shaft lever 1 and the second support rod 8 are connected through butterfly bolts 9, the connecting rod 6 can rotate along the radial direction of the shaft lever 1, the first support rod 7 can rotate along the sleeving direction and is matched with the angle change of the lifting hook 4, and the connecting rod 6, the shaft lever 1 and the second support rod 8 are fixed through the butterfly bolts 9; when the anti-rotation mechanism rotates to the position below the shaft lever 1, the first supporting rod 7 is vertically downward, and the second supporting rod 8 is obliquely bent at two sides of the lifting hook 4; the anti-rotation mechanism is perpendicular to the shaft rod 1 and can rotate along the radial direction of the shaft rod 1, and when the anti-rotation mechanism rotates below the shaft rod 1, the hook 4 is located between the two limiting rods 5. The gag lever post 5 in this device can be connected 6 and the junction of second branch pole 8 and rotate as the centre of a circle by the connecting rod, can cooperate the rotation of lifting hook 4 and rotate, guarantees the limiting displacement to lifting hook 4 under the multiple angle.

The use process of the anti-rotation hook 4 of the crane in the embodiment is briefly described as follows: the anti-rotation mechanism is put down to enable the limiting rods 5 to be positioned at two sides of the lifting hook 4, the angle of the lifting hook 4 is adjusted, the limiting rods 5 at two sides of the lifting hook 4 are correspondingly rotated to enable the limiting rods 5 to be positioned at two sides of the lifting hook 4 all the time, the fastening bolts 15 are screwed with the butterfly bolts 9, and the lifting hook 4 is fixed; then the goods to be hung are hung on the lifting hook 4 for transferring.

The utility model provides an anti-rotation lifting hook 4 of a crane, when goods are hung, the angle of the lifting hook 4 connected below a bearing 3 can be freely changed, the lifting hook is hung in a matched manner, when the goods are hung, a fastening bolt 15 is screwed to fix the angle of the lifting hook 4, and an anti-rotation mechanism is put down at the same time, so that the lifting hook 4 is limited between limiting rods 5 by the anti-rotation mechanism, and the stability and the safety of objects are ensured; the lifting hook angle adjusting device is simple in structure and convenient to operate, does not need to be additionally provided with a motor to change the angle of the lifting hook 4, and can be popularized in a large range.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. An anti-rotation hook of a crane comprises a body and an anti-rotation mechanism; the anti-rotation mechanism is arranged on the body; the device is characterized in that the body comprises a shaft lever (1), pulley blocks (2) are fixed on two sides of the shaft lever (1), a bearing (3) is fixed between the pulley blocks (2), the bearing (3) is positioned at the bottom end of the shaft lever (1) and is not in contact with the shaft lever (1), and a lifting hook (4) is rotatably connected to the bottom end of the bearing (3); the anti-rotation mechanism comprises limiting rods (5) arranged on two sides of the connecting rod, and the limiting rods (5) on the two sides are rotatably connected with the shaft rod (1) through the connecting rod (6); the anti-rotation mechanism is perpendicular to the shaft rod (1) and can rotate along the radial direction of the shaft rod (1), and when the anti-rotation mechanism rotates below the shaft rod (1), the hook (4) is located between the two limiting rods (5).

2. An anti-rotation hook for cranes according to claim 1, characterized in that the limiting rod (5) comprises a first strut (7) and a second strut (8), the first strut (7) being vertically downward and the second strut (8) being bent obliquely to the sides of the hook (4) when the anti-rotation mechanism is turned under the shaft (1).

3. The anti-rotation hook of a crane as claimed in claim 2, wherein the connecting rod (6) is movably sleeved on the shaft rod (1) at one end and movably sleeved on one end of the first strut (7) far away from the second strut (8) at the other end; the connecting rod (6) is connected with the shaft rod (1) and the second supporting rod (8) through butterfly bolts (9), and the connecting rod (6) is fixed with the shaft rod (1) and the second supporting rod (8) through the butterfly bolts (9).

4. Anti-rotation hook for cranes according to claim 1, characterized in that the pulley block (2) comprises a pulley housing (10) and a rotating shaft (11), the pulley housing (10) is fixed to both ends of the shaft (1), the rotating shaft (11) is rotatably arranged inside the pulley housing (10), and the axis of the rotating shaft (11) and the axis of the shaft (1) are on the same straight line.

5. Anti-rotation hook for cranes according to claim 4, characterized in that said pulley casing (10) is hollow inside a disk, said pulley casing (10) being flanked by two curved through slots (12), said curved through slots (12) opening into the inside of said pulley casing (10).

6. An anti-rotation hook for cranes as claimed in claim 5, characterized in that inside the pulley housing (10) there is a steel cable (13), said cable (13) passing from the curved through slot (12) into the inside of the pulley housing (10).

7. The anti-rotation lifting hook of a crane according to claim 4, wherein a connecting plate (14) is fixed at one end of the pulley housing (10) close to the shaft rod (1), the upper end of the connecting plate (14) is fixedly sleeved on the shaft rod (1) and attached to the pulley housing (10), the lower end of the connecting plate is fixed to the bearing (3), and the bearing (3) is fixed between the connecting plates (14) at two sides of the shaft rod (1).

8. An anti-rotation lifting hook of a crane according to claim 1, characterized in that the bearing (3) is provided with a fastening bolt (15), one end of the fastening bolt (15) is located outside the bearing (3), and the other end passes through the bearing (3) to contact with the lifting hook (4).

9. An anti-rotation hook for cranes according to claim 8, characterized in that the fastening bolt (15) is screwed to the bearing (3).