CN216478788U

CN216478788U - Double-row pulley hook group

Info

Publication number: CN216478788U
Application number: CN202121875086.4U
Authority: CN
Inventors: 魏兴; 张扬; 李春光; 田青益; 王星霖; 许平; 杜庆升
Original assignee: Dalian Yiliya Construction Machinery Co Ltd; Sany America Inc
Current assignee: Dalian Yiliya Construction Machinery Co Ltd; Sany America Inc
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-05-10
Anticipated expiration: 2031-08-12

Abstract

The utility model relates to the technical field of crane hoisting, and provides a double-row pulley hook group, which comprises: the pulley frame structure comprises two upper outer ear plates, a plurality of upper middle ear plates are arranged between the upper outer ear plates, the two sides of the upper outer ear plates and the two sides of the upper middle ear plates are fixedly connected with lateral connecting plates, and the upper middle ear plates are provided with openings, left side pulley axle holes and right side pulley axle holes which are positioned at the two sides of the openings; the outer otic placode below in upper portion is connected with the lower part otic placode, the lower part otic placode passes through the arm-tie with the rings subassembly is connected, the assembly pulley passes through the pulley spindle and installs on left side pulley shaft hole and the right side pulley shaft hole. The utility model can obviously improve the rated lifting capacity of the hook group on the premise of ensuring that the axial size of the pulley is not obviously increased.

Description

Double-row pulley hook group

Technical Field

The utility model relates to the technical field of crane hoisting, in particular to a double-row pulley hook group.

Background

At present, in modern industrial production, a crane is indispensable material handling equipment. The lifting hook group is an important component of the crane. A plurality of groups of pulleys are arranged on a common lifting hook group, and the number of the pulley blocks is increased along with the increase of lifting capacity in order to avoid overlarge single-rope tension. The lifting hook group is an important lifting mechanical object taking device.

The existing hook group is mainly characterized by the following: when a plurality of groups of pulleys are arranged, all the pulley groups are arranged on the same pulley shaft. Although some tower crane hook sets have sheaves arranged on two or more sheave shafts, only one sheave is mounted on each sheave shaft. The prior art has the following disadvantages: 1. the number of hook block sets cannot be too large, so that the rated lifting capacity is limited. 2. In order to increase the lifting capacity, the number of hook pulley blocks needs to be increased, and if the pulley blocks are arranged on the same pulley shaft, the size in the horizontal direction is increased along with the increase of the number of the pulley blocks, so that the self weight of the hook group is not controlled. Therefore, a lifting hook group scheme is urgently needed, the bearing capacity of the lifting hook group is improved, and meanwhile, the structure is compact and the stability is good.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of poor hoisting capability of the crane in the prior art, and provides a double-row pulley hook group so as to achieve the purpose of improving the hoisting safety and reliability.

The development process of the utility model goes through the following technical schemes.

1. The lifting hook group of the single-row pulley block is adopted, so that the single-rope tension of the steel wire rope needs to be increased to meet the rated load and the overall dimension along the direction of the pulley shaft, the diameter of the steel wire rope is too thick, and the overall dimension of the hoisting mechanism is correspondingly increased.

2. The number of the pulley blocks is increased by adopting the hook groups with the single row of pulley blocks, and the number of the fixed pulley blocks on the crane structure is increased therewith, so that the crane structure is oversized.

3. By adopting the double-row pulley hook group, under the condition that the size along the direction of the pulley shaft is basically unchanged, the multiplying power of the steel wire rope is increased to twice of the original multiplying power, thereby solving the problems. The double-row pulley is arranged in the pulley yoke structure through a pulley shaft and the like, and the pulling plate is arranged at the lower part of the pulley yoke structure through a pin shaft and the like after being connected with the hook head or the hanging ring component.

The utility model provides a double-row pulley hook group, which is characterized by comprising the following components: a pulley block 1, a pulley yoke structure 2, a pulling plate 3 and a hanging ring component 4,

the pulley frame structure 2 comprises two upper outer ear plates 21, a plurality of upper middle ear plates 22 are arranged between the upper outer ear plates 21, lateral connecting plates 23 are fixedly connected to two sides of the upper outer ear plates 21 and two sides of the upper middle ear plates 22, and the upper middle ear plates 22 are provided with gaps 26 and left pulley shaft holes 29 and right pulley shaft holes 27 located at two sides of the gaps 26;

the lower part otic placode 24 is connected with to the outer otic placode 21 below in upper portion, lower part otic placode 24 passes through arm-tie 3 with rings subassembly 4 connects, assembly pulley 1 passes through the pulley shaft and installs on left side pulley shaft hole 29 and the right side pulley shaft hole 27.

Furthermore, the upper outer ear plate 21 is provided with a hoisting hole 25.

Further, the lower ear plate 24 is provided with a pin shaft hole 28.

Further, the number of the upper middle ear plates 22 is 3.

Further, the upper outer ear plate 21 is also provided with a left pulley shaft hole 29 and a right pulley shaft hole 27.

Further, the left pulley shaft hole 29 is located on one axis, and the right pulley shaft hole 27 is located on the other axis.

Compared with the prior art, the utility model has the following advantages:

1. by adopting the double-row pulley block, the rated lifting capacity of the lifting hook group is obviously improved on the premise of ensuring that the axial size of the pulley is not obviously increased.

2. The left pulley shaft hole 29 and the right pulley shaft hole 27 are respectively positioned on different axes to form a double-row pulley block, so that the sliding accuracy of the pulley block is improved.

3. The upper middle ear plate 22 is provided with a notch 26 to further reduce the overall weight of the device while preventing friction with the ropes on the left and right pulley shafts on both sides.

4. The number of the upper ear plates 22 can be multiple, and the number of the pulleys can be increased or decreased according to actual requirements, so that the use is convenient.

Drawings

Fig. 1 is a schematic view of the structure of a double row pulley hook set provided by the present invention.

Fig. 2 is a front view of the structure of the double row pulley hook set provided by the present invention.

Fig. 3 is a schematic diagram of a pulley frame structure of a double-row pulley hook set provided by the utility model.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some but not all of the relevant aspects of the present invention are shown in the drawings.

Referring to fig. 1 to 3, the present invention provides a double row pulley hook set, comprising: the pulley block 1, the pulley yoke structure 2, the pulling plate 3 and the hoisting ring component 4.

The pulley frame structure 2 comprises two upper outer ear plates 21, a plurality of upper middle ear plates 22 are arranged between the upper outer ear plates 21, lateral connecting plates 23 are fixedly connected to two sides of the upper outer ear plates 21 and two sides of the upper middle ear plates 22, and a notch 26, a left pulley shaft hole 29 and a right pulley shaft hole 27 are arranged on the upper middle ear plates 22 and are located on two sides of the notch 26.

In particular, the upper outer ear plate 21 and the upper middle ear plate 22 may be plate-like structures arranged parallel to each other, with the lateral connecting plates 23 arranged perpendicular to them for stabilization. The gap 26 is located between the left pulley shaft hole 29 and the right pulley shaft hole 27, so that the rope is prevented from rubbing against the upper outer ear plate 21 and the upper middle ear plate 22, a space is reserved for the rope, and the weight of the device can be further reduced. The eye assembly 4 may also be a hook head.

The lower ear plate 24 is used for connecting the pulling plate 3 and the suspension ring component 4, and the suspension ring component 4 can also be a lifting hook component.

Furthermore, the upper outer ear plate 21 is provided with a hoisting hole 25.

Further, the lower ear plate 24 is provided with a pin shaft hole 28.

Specifically, the hoisting hole 25 is used for hoisting the double-row pulley hook group on a crane or for transporting and fixing the double-row pulley hook group. The pin-shaft hole 28 is used for shaft connection with the pulling plate 3.

Further, the number of the upper middle ear plates 22 is 3.

Specifically, the number of the upper middle ear plates 22 is not limited thereto, and may be plural. The left pulley shaft hole 29 is all located on the same axis, and the right pulley shaft hole 27 is all located on the other axis, so that a double-row pulley block structure is formed. The two axes may be parallel to each other, but are not limited thereto.

Fig. 1 is a schematic view of the overall configuration of the present invention. Mainly comprises a pulley block 1, a pulley yoke structure 2, a pulling plate 3 and a hook head or a hanging ring component 4.

Fig. 2 is a front view of the present invention. The axes of the pulling plate 3 and the lug plate of the pulley yoke structure 2 are positioned right below the center of the pulley block 1, and the stress is better. The two are connected through a pin shaft, so that the hook head or the lifting ring component 4 has certain degree of freedom.

Fig. 3 is a schematic view of the pulley frame structure 2. The pulley frame structure 2 is mainly formed by welding an upper outer ear plate 21, an upper middle ear plate 22, a lateral connecting plate 23 and a lower ear plate 24. The pulley block 1 is mounted on the upper outer ear plate 21 and the upper middle ear plate 22 through pulley shafts. The upper outer ear plate 21 is provided with a hoisting hole 25, which is convenient for integral hoisting when the utility model is installed with a crane. The lower ear plate 24 is provided with a pin shaft hole 28 for connecting the pulling plate 3 by a pin shaft.

The lower ear plate 24 may also be provided with larger openings (non-lifting holes) and the upper outer ear plate 21 and the upper middle ear plate 22 are also provided with larger openings below for reducing the weight and the resistance to wind during lifting.

Under the condition that the dimension along the direction of the pulley shaft is basically unchanged, the multiplying power of the steel wire rope is increased to twice of the original multiplying power, so that the problems in the prior art are solved. The utility model improves the bearing capacity of the hook group and has compact structure, high efficiency and good stability.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: modifications of the technical solutions described in the embodiments or equivalent replacements of some or all technical features may be made without departing from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-row pulley hook group is characterized by comprising: a pulley block (1), a pulley yoke structure (2), a pulling plate (3) and a hanging ring component (4),

the pulley frame structure (2) comprises two upper outer ear plates (21), a plurality of upper middle ear plates (22) are arranged between the upper outer ear plates (21), lateral connecting plates (23) are fixedly connected to two sides of the upper outer ear plates (21) and two sides of the upper middle ear plates (22), and the upper middle ear plates (22) are provided with notches (26), left side pulley shaft holes (29) and right side pulley shaft holes (27) which are positioned on two sides of the notches (26);

the outer otic placode of upper portion (21) below is connected with lower part otic placode (24), lower part otic placode (24) are passed through arm-tie (3) with rings subassembly (4) are connected, assembly pulley (1) is installed through the pulley shaft on left side pulley shaft hole (29) and right side pulley shaft hole (27).

2. The double row pulley hook assembly as claimed in claim 1, wherein said upper outer ear plate (21) is provided with a lifting hole (25).

3. The double row pulley hook assembly as in claim 1, wherein said lower ear plate (24) is formed with a pin shaft hole (28).

4. The double row pulley hook set as in claim 1, wherein the number of upper middle ear plates (22) is 3.

5. The double row pulley hook assembly according to claim 1, wherein the upper outer ear plate (21) is also provided with a left pulley shaft hole (29) and a right pulley shaft hole (27).

6. The double row pulley hook set according to claim 5, wherein the left pulley shaft hole (29) is located entirely on one axis and the right pulley shaft hole (27) is located entirely on the other axis.