CN104214500A

CN104214500A - Irregular supporting ON type pipe

Info

Publication number: CN104214500A
Application number: CN201410412469.6A
Authority: CN
Inventors: 杜伟; 宋宇光
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-08-21
Filing date: 2014-08-21
Publication date: 2014-12-17

Abstract

The invention discloses an irregular rectangular pipe which is produced by using a cold-bending on-line continuous technique, is bent and singly produced and is used for supporting a commercial vehicle. The problems of the present common section bar of simple structure, small section inertia moment, limited section performance, many processing welding links, low yield and complex mounting technique are solved. The irregular rectangular pipe comprises an integrated cold-bent ON shaped steel plate, wherein a welding joint (12) is arranged at a butt-joint connector of the steel plate, and the cross section is of ON shape. According to the invention, a cold-bending welding pipe unit is used for continuously rolling, bending and forming. Online welding reshaping, online sawing production technique, single plate bending and offline welding reshaping technique of a bending machine are adopted.

Description

Special-shaped support ON type pipe

Technical field

The present invention relates to a kind of shape steel rolled stock of alternative quarter bend, the passive profiled square quarter bend for commercial vehicle of particularly a kind of clod wash on-line continuous explained hereafter and the single production of bending.

Background technique

At present, frame strengthened by existing commercial vehicle passive side case, and adopt square tube, C-type steel, wedge angle pipe or hot-rolled steel channel to manufacture and design, its structure is simple, cross sectional moment of inertia is little, cross section limited capacity, processing welding link is many, and productivity is low, mounting process is complicated, many industry requirements improve cross sectional moment of inertia when profile is constant simultaneously, and common section bar cannot meet the development in existing field, need the wider section bar of a kind of accommodation to substitute.

Summary of the invention

For make up common section bar functionally as cross sectional moment of inertia is little, the deficiencies such as cross section limited capacity, the mechanical property of the existing square tube of the present invention, there is again the structural feature of angle steel, C-type steel, adopt shaping continuous Type of Welding simultaneously, decrease the extensive work of line aft-loaded airfoil welding, its mechanical property is better than the mechanical property of square tube.

The present invention is solved the problem by following scheme:

Special-shaped support ON type pipe, comprise the monoblock steel plate that clod wash becomes ON shape, steel plate sealing part is provided with welded seam (12), its Type of Welding has online high frequency continuous welding, submerged arc continuous welding, laser continuous welding and air protection continuous welding, Type of Welding is selected according to the difference of steel plate wall thickness (14) and material, it is characterized in that: section is ON shape, four angles of tube wall external frame are external arc (1), and the radius of external arc (1) is 2 ~ 4 times of steel plate wall thickness (14); Four angles of tube wall Internal periphery are Inner arc (13), and the radius of Inner arc (13) is 1 ~ 2.5 times of steel plate wall thickness (14); Width (10) scope of ON shape pipe is 40mm ~ 150mm, and highly the scope of (6) is 120mm ~ 450mm, and wide (10) high (6) are than being 1:3 ~ 1:5; ON shape pipe part minor face (8) height value of remaining silent is 20mm ~ 200mm, and angle of remaining silent is respectively 90 °, 90 °, 135 °, 135 °, 90 °; The altitude range of steel pipe opening minor face (5) is 25mm ~ 60mm; The height on limit (2) of remaining silent is ; The length of edge sealing (3) of remaining silent is ; Location, turning (7) , wherein K1 is that steel pipe is remained silent limit height, and H1 is location, turning, and L is that steel pipe is remained silent edge sealing, and t is steel plate wall thickness, and B is steel pipe overall width; Wall thickness (14) scope is 3mm ~ 16mm; Steel pipe L shape Partial Height (11) scope is 40mm ~ 150mm, and width (4) scope is 40mm ~ 150mm.

ON type tubing matter is carbon steel, high-strength automobile steel and stainless steel, and its yield limit and tensile strength Applicable scope are respectively 195MPa ~ 960MPa, 350MPa ~ 1260MPa.

The present invention can strengthen the aspects such as frame, dumping car, railway freight-car side bar, tower crane, technique steel structure, photovoltaic industry by extensive use commercial vehicle side case, adds the product variety of clod wash square tube, has widened the using scope of cold-bending square and rectangular pipe.

Accompanying drawing explanation

Accompanying drawing is structural representation of the present invention.

Embodiment

The present invention adopts clod wash welded pipe units continuous rolling roll forming, online weld shaping, online sawing production technology, and spiral-plate bending, weld shaping technique under bender line.

Existing automobile side chest frame can adopt ON type pipe, remain silent edge sealing (3)=22.5mm, steel pipe of its specification is width (10)=80mm, highly (6)=400mm, thickness (14)=8mm, steel pipe are remained silent minor face (8)=145mm, steel pipe is remained silent limit (2)=167.7mm, steel pipe opening minor face (5)=68mm, steel pipe opening edge (9)=82mm, location, steel pipe turning (7)=172.3mm, steel pipe L shape Partial Height (11)=40mm, steel pipe L shape partial width (4)=85mm, its angle is shown in accompanying drawing.

Claims

1. special-shaped support ON type pipe, comprise the monoblock steel plate that clod wash becomes ON shape, steel plate sealing part is provided with welded seam (12), its Type of Welding has online high frequency continuous welding, submerged arc continuous welding, laser continuous welding and air protection continuous welding, Type of Welding is selected according to the difference of steel plate wall thickness (14) and material, it is characterized in that: section is ON shape, four angles of tube wall external frame are external arc (1), and the radius of external arc (1) is 2 ~ 4 times of steel plate wall thickness (14); Four angles of tube wall Internal periphery are Inner arc (13), and the radius of Inner arc (13) is 1 ~ 2.5 times of steel plate wall thickness (14); Width (10) scope of ON shape pipe is 40mm ~ 150mm, and highly the scope of (6) is 120mm ~ 450mm, and wide (10) high (6) are than being 1:3 ~ 1:5; ON shape pipe part minor face (8) height value of remaining silent is 20mm ~ 200mm, and angle of remaining silent is respectively 90 °, 90 °, 135 °, 135 °, 90 °; The altitude range of steel pipe opening minor face (5) is 25mm ~ 60mm; The height on limit (2) of remaining silent is ; The length of edge sealing (3) of remaining silent is ; Location, turning (7) , wherein K1 is that steel pipe is remained silent limit height, and H1 is location, turning, and L is that steel pipe is remained silent edge sealing, and t is thickness of steel pipe, and B is steel pipe overall width; Wall thickness (14) scope is 3mm ~ 16mm; Steel pipe L shape Partial Height (11) scope is 40mm ~ 150mm, and width (4) scope is 40mm ~ 150mm.

2. special-shaped support ON type pipe according to claim 1, is characterized in that: ON type tubing matter is carbon steel, high-strength automobile steel and stainless steel, and its yield limit and tensile strength Applicable scope are respectively 195MPa ~ 960MPa, 350MPa ~ 1260MPa.