CN201105946Y

CN201105946Y - Main girder of single-beam crane

Info

Publication number: CN201105946Y
Application number: CNU2007200916013U
Authority: CN
Inventors: 李耀卿
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-24
Filing date: 2007-08-24
Publication date: 2008-08-27
Anticipated expiration: 2017-08-24

Abstract

The utility model discloses a main girder of a single girder crane, which comprises a girder box body with a U-shaped cross section and an I-beam fixed at the lower part of the girder box body through connecting webs at two sides. Integral cold-pressed frame structure is between the connecting webs and the girder box body at one side. In order to enhance the bearing capacity of the girder box body, a left side board, a right side board and the surface of a top board are respectively provided with inner grooves along an axial direction. The main girder has the advantages that the integral cold-pressed frame structure is between the connecting webs and the girder box body at one side; the number of the welding lines of the main girder is reduced to 3 after forming, thereby reducing production cost as well as enhancing the strength and lengthening the service life of the main girder; the strength of the girder box body is better when the left side board and the right side board and the surface of the top board of the girder box body are provided with the inner grooves along the axial direction, thus enhancing the bearing capacity of the main girder.

Description

The single-beam crane girder

Technical field

The utility model relates to single-beam crane, especially relates to a kind of single-beam crane girder.

Background technology

Single-beam crane is widely used in industrial and mining enterprises, is the requisite lifting appliance of industrial and mining enterprises' production site.The girder of tradition single-beam crane is the middle part that the quadra of upper end is welded on I-beam section by the connection web of two sides, girder has four weld seams after the moulding, the girder of this structure labor content in manufacturing process is big, the manufacturing cost height, weld seam snapped easily when the middle girder of working simultaneously produced torsional deflection, reduce hoisting crane service life, and have potential safety hazard.

The utility model content

The purpose of this utility model is to provide the single-beam crane girder of a kind of low cost of manufacture, weight capacity raising.

For achieving the above object, the utility model can be taked following technical proposals:

Single-beam crane girder described in the utility model comprises that transversal surface is the beam box body of U-shaped and the I-beam section that web is connected in described beam box body below that is connected by both sides, and is the integral body framed structure of colding pressing between the connection web of a described side and the beam box body.

For increasing the weight capacity of beam box body, be respectively arranged with inner groovy vertically on the left and right side plate of described beam box body and the plate face of top board.

Advantage of the present utility model is between the connection web of a side and the beam box body to be the integral body framed structure of colding pressing that the weld seam of girder reduces to three after the moulding, has both reduced productive costs, has increased the intensity of girder simultaneously again, has prolonged the service life of girder; When be respectively arranged with inner groovy vertically on the plate face of the left and right side plate of beam box body and top board, the intensity of beam box body can be better, can strengthen the weight capacity of girder.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1.

Fig. 2 is the structural representation of the utility model embodiment 2.

The specific embodiment

Embodiment 1:

As shown in Figure 1, single-beam crane girder described in the utility model, comprise that transversal surface is the beam box body 1 of U-shaped and the I-beam section 4 that

web

2,3 is connected in described beam box body 1 below that is connected by both sides, be the integral body framed structure of colding pressing between the connection web 2 of a described side and the beam box body 1.

Embodiment 2:

As shown in Figure 2, single-beam crane girder described in the utility model, comprise that transversal surface is the beam box body 1 of U-shaped and the I-beam section 4 that

web

2,3 is connected in described beam box body 1 below that is connected by both sides, be the integral body framed structure of colding pressing between the connection web 2 of a described side and the beam box body 1, on the plate face of the left and right side plate of described beam box body 1 and top board, be respectively arranged with inner groovy 5 vertically.

Claims

1, a kind of single-beam crane girder, comprise that transversal surface is the beam box body (1) of U-shaped and the I-beam section (4) that web (2,3) is connected in described beam box body (1) below that is connected by both sides, and is characterized in that: be the integral body framed structure of colding pressing between the connection web (2) of a described side and the beam box body (1).

2, single-beam crane girder according to claim 1 is characterized in that: be respectively arranged with inner groovy (5) vertically on the left and right side plate of described beam box body (1) and the plate face of top board.