CN212893605U

CN212893605U - High-strength cargo boom root section structure

Info

Publication number: CN212893605U
Application number: CN202021240968.9U
Authority: CN
Inventors: 胡雅柯
Original assignee: Sichuan Qiangli Construction Machinery Co ltd
Current assignee: Sichuan Qiangli Construction Machinery Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-04-06
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to a jib loading boom root festival structure of high strength, including bearing part (1) and coupling part (2), bearing part (1) comprises cuboid frame with a plurality of web members (4) by four main chords (5), coupling part (2) are including two main chords (5) that are located the bottom and the tripod that is located the top, the tripod is connected through a plurality of web members (4) with two main chords (5) of bottom, two angles of tripod are connected with bearing part (1), and another angle is provided with connector (3). The utility model discloses need not to process through other section bars, do not have unnecessary processing cost to because it forms to form wholly, consequently structural stability is high, can not take place the incident. And the utility model discloses a structure can be directly be connected with the three-dimensional tripod structure of ordinary jib loading boom, greatly increased the bearing capacity of jib loading boom root.

Description

High-strength cargo boom root section structure

Technical Field

The utility model relates to a tower crane jib loading boom technical field, especially a jib loading boom root festival structure of high strength.

Background

The tower crane is a hoisting device with wide application. With increasing demand, the greater the weight that a user requires to be able to lift. As the lifting weight increases, the size of the boom and the size of the sections forming the boom gradually increase. The crane boom is usually a triangular frame structure and comprises two main chords positioned at the bottom and one main chord positioned at the top, the main chord positioned at the top bears tension, the tension is larger as the crane boom is closer to the tower crane truss, the main bearing section of the crane boom is made of square steel, but the size of the square steel in the market is specified, and the square steel exceeding a certain size cannot be found in the market; in this case it is common practice to weld two angles into a new square steel, so as to obtain the required dimensions. However, the welded structure is unstable, greatly affected by the welding quality, and has a risk of safety accidents, and this method requires a large amount of processing cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a high strength jib loading boom structure that can make through existing section bar in the market.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a jib loading boom root festival structure of high strength, includes bearing part and coupling part, the bearing part includes the main chord that four levels set up, is provided with a plurality of web members between four main chords, four main chords constitute the cuboid frame with a plurality of web members, the coupling part is including two main chords that are located the bottom and the tripod that is located the top, the tripod is connected through a plurality of web members with two main chords of bottom, two angles and the bearing part of tripod are connected, and another angle is provided with the connector.

Specifically, the bottoms of the bearing part and the connecting part are provided with main chords, and the two main chords can be integrally formed or connected through a pin shaft in any one of the two connection modes.

Specifically, the web members can be arranged in an inclined mode and a vertical mode relative to the main chord.

Specifically, the tripod and the two main chords positioned above the bearing part are connected through a pin shaft or integrally formed.

Specifically, two connectors are arranged at the other corner of the tripod, and pin holes are formed in the connectors.

The utility model has the advantages of it is following:

the structure of the utility model can be manufactured by the existing section bar on the market. The structure is high in structural stability and free of safety accidents due to the fact that the structure is integrally manufactured without processing other section bars and excessive processing cost. And the utility model discloses a structure can be directly be connected with the three-dimensional tripod structure of ordinary jib loading boom, greatly increased the bearing capacity of jib loading boom root.

Drawings

FIG. 1 is a schematic structural view of the top of the present invention;

fig. 2 is a right side view of the present invention;

in the figure: 1-bearing part, 2-connecting part, 3-connector, 4-web member and 5-main string.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1 and 2, a high-strength boom root section structure comprises a bearing part 1 and a connecting part 2, wherein the bearing part 1 comprises four horizontally arranged main chords 5, two of the four main chords 5 are positioned at the bottom, the other two main chords are positioned at the top, a plurality of web members 4 are arranged between the four main chords 5, the four main chords 5 and the web members 4 form a rectangular parallelepiped frame, when a boom is hoisted, compared with a common tripod, only one main chord 5 is stressed at the top of the common tripod, and the two main chords 5 are adopted, so that the borne weight is greatly increased.

The connecting part 2 comprises two main chords 5 positioned at the bottom and a tripod positioned at the top, wherein the tripod refers to a planar tripod, the tripod is connected with the two main chords 5 at the bottom through a plurality of web members 4, two corners of the tripod are connected with the bearing part 1, and the other corner is provided with a connector 3. Can be connected with the jib loading boom of ordinary three-dimensional tripod structure through connector 3, accomplished the conversion of two kinds of structures promptly. And a brand-new crane arm structure is not required, so that the load-bearing capacity is increased, and a large amount of cost is not required.

Each main chord 5 at the other end of the bearing part 1 is provided with a connector 3, and the connector 3 can be connected with the truss and the balance arm through a pin hole arranged on the connector 3.

Specifically, the bottom of the bearing part 1 and the bottom of the connecting part 2 are both provided with main strings 5, and the two main strings 5 can be formed integrally or connected through pin shafts in any one of the two connection modes. As the most preferable embodiment, the main strings 5 at the bottom of the bearing part 1 and the connecting part 2 are of an integral structure, because the two main strings 5 are arranged at the bottom of the two parts, and the data such as the distance between the main strings 5 are the same, the integral structure can reduce one connecting relationship, and the structure is more stable.

In particular, the web members 4 comprise both an inclined arrangement and a vertical arrangement with respect to the main chord 5. The obliquely arranged web members 4 also act as reinforcing rods, so that the whole space frame is more stable.

Specifically, the tripod and two main chords 5 positioned above the bearing part 1 are connected through a pin shaft or integrally formed. The connection can also be made by welding.

Specifically, another angle of tripod is provided with two connectors 3, because the tripod is formed by two main chords 5 merging, consequently this side that sets up connector 3 is through welding a connection crossbeam, welds two main chords 5 as an organic whole, and the extreme point of these two main chords 5 is then processed into connector 3, be provided with the pinhole on the connector 3, can be connected the use with ordinary jib loading boom through the round pin axle.

The connecting head 3 is flat from two sides and is provided with a rod-shaped structure of a pin hole.

Claims

1. The utility model provides a jib loading boom root festival structure of high strength which characterized in that: including bearing part (1) and coupling part (2), bearing part (1) includes main chord (5) that four levels set up, is provided with a plurality of web members (4) between four main chords (5), four main chords (5) constitute the cuboid frame with a plurality of web members (4), coupling part (2) are including two main chords (5) that are located the bottom and the tripod that is located the top, the tripod is connected through a plurality of web members (4) with two main chords (5) of bottom, two angles of tripod are connected with bearing part (1), and another angle is provided with connector (3).

2. A high strength boom root section structure as claimed in claim 1, wherein: the bottom of the bearing part (1) and the bottom of the connecting part (2) are both provided with main strings (5), and the two main strings (5) are integrally formed or connected through a pin shaft in any one of the two connection modes.

3. A high strength boom root section structure as claimed in claim 1, wherein: the web members (4) are arranged in two ways, namely obliquely and vertically relative to the main chord (5).

4. A high strength boom root section structure as claimed in claim 1, wherein: the tripod and two main chords (5) positioned above the bearing part (1) are connected through a pin shaft or integrally formed.

5. A high strength boom root section structure as claimed in claim 1, wherein: and the other corner of the tripod is provided with two connectors (3), and pin holes are formed in the connectors (3).