Groove-type cable bridge frame horizontal bend manufacturing method

A technology of cable bridge and manufacturing method, which is applied in the direction of cable installation, cable installation device, electrical components, etc., and can solve the problems of slowing down the construction period of horizontal elbows, etc.

Inactive Publication Date: 2019-11-08
CHINA 22MCC GROUP CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention solves the defect that the on-site production of

Method used

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  • Groove-type cable bridge frame horizontal bend manufacturing method
  • Groove-type cable bridge frame horizontal bend manufacturing method
  • Groove-type cable bridge frame horizontal bend manufacturing method

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Embodiment Construction

[0021] Below the present invention is further described: as Figure 1-3 As shown, a method for manufacturing a horizontal elbow of a trough-type cable tray is carried out according to the following steps:

[0022] First, measure the two bridges that need to be connected by an elbow to determine the prefabricated horizontal elbow angle α.

[0023] Secondly, calculate the side cutting length x of the bridge: x=2b*tgα, where b is the width of the bridge.

[0024] Third, cut the bridge frame: 1) cut and remove the x length on the inner side 1 of the bridge frame; 2) take the x area as the base, and make a vertical line 4 on the bottom surface 2 of the bridge frame; 3) then cut along the drawn line, Only the bottom surface 2 of the bridge frame is cut and the outer edge 3 of the bridge frame is reserved.

[0025] Fourth, connect and fix: Fold the outer side 3 of the bridge frame in half at the vertex of the vertical line 4, so that the bottom surfaces on both sides of the cut sea...

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Abstract

The invention provides a groove-type cable bridge frame horizontal bend manufacturing method. The method comprises the following steps of 1, measuring two bridge frames which needs to set bend connection so as to determine a pre-made horizontal bend angle alpha; 2, calculating a cutting length x of a side edge of each bridge frame, wherein x = 2b* tgalpha, and the b is a bridge frame width; 3, cutting and removing a x length on an inner side edge of each bridge frame, taking an x area as a bottom to make a midperpendicular on a bottom surface of each bridge, then cutting along a drawing line,and only cutting the bottom surface of each bridge frame to protect the outer side edge of the bridge frame; 4, folding the outer side edge of each bridge frame at a vertex of a vertical line so thatthe bottom surfaces of the two sides of a cutting seam overlap, and a cut gap portion of the inner side edge is completely closed; and 5, drilling holes in the overlapped bottom surface, fixing with agalvanized square neck bolt, and installing a connecting plate at a folded corner formed by folding of the inner side edges so as to complete fixing of a horizontal bend. In the method, electrowelding is not needed, an anti-corrosion layer of a bridge frame material is not damaged, a cutting work amount is reduced, the method is simple and easy to operate, and a construction period is effectivelyshortened.

Description

technical field [0001] The invention relates to a method for manufacturing an elbow of a trough-type cable bridge, in particular to a method for manufacturing a horizontal elbow of a trough-type cable bridge. Background technique [0002] In the actual construction of the trough cable tray, the bridge horizontal elbow is expensive and often does not conform to the actual size of the site, which is easy to cause waste; if the non-standard bridge horizontal elbow is customized according to the actual measurement on site, the construction period will be seriously extended. Therefore, according to the complexity of the site, it is often necessary to make bridge horizontal elbows according to the actual site. [0003] At present, the conventional method of making bridge horizontal elbows on site is: firstly cut the bridge according to the actual measurement on site, and then assemble and weld the cut materials. Due to the large amount of cutting and the need to use electric weld...

Claims

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Application Information

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IPC IPC(8): H02G3/04H02G1/00B23P23/02
CPCB23P23/02H02G1/00H02G3/0406H02G3/0456
Inventor 李寒肖立翠黄立兵
Owner CHINA 22MCC GROUP CORP
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