Pull rod device for adjusting gap for welding junction assembly of large-caliber pipelines
A technology for large-diameter pipes and tie rod devices, applied in auxiliary devices, welding equipment, auxiliary welding equipment, etc., can solve the problems of inability to accurately adjust the welding gap, increase the labor intensity of workers, endanger the personal safety of workers, etc., and achieve high promotion and Use value, simple structure, group effect on safe and reliable
Inactive Publication Date: 2019-12-20
SHANGHAI ERSHIYE CONSTR CO LTD +1
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- Abstract
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- Application Information
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Problems solved by technology
The combination of the crowbar and the reverse chain pull increases the labor intensity of the workers and cannot accurately adjust the weld gap, which affects the welding quality. If the reverse chain breaks during pulling, it will endanger the personal safety of the workers.
Method used
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Embodiment Construction
[0018] The present invention is further illustrated below by specific examples.
[0019] Such as Figure 1~Figure 3 As shown in the figure, a pull rod device for adjusting the gap between welding joints of large-diameter pipelines includes connecting ear plates 1, screw rods 2, 3, bolts 4 and spiral sleeves 5, wherein the spiral sleeves 5 refer to the two ends with There are internal threads and the internal threads match the screw rods 2 and 3. There are two screw rods 2 and 3 and they are respectively connected to the two ends of the spiral sleeve 5 through thread engagement. The other ends of the screw rods 2 and 3 are connected to the connecting ear plate 1 are connected by bolts 4, and there are two connecting ear plates 1, which are respectively welded to the pipe ports 6 and 8 to be connected at both ends; wherein, the two screws 2 and 3 are right-handed threaded screws and left-handed threaded screws respectively, The heads of the screws 2, 3 have U-shaped connections...
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The invention relates to a pull rod device for adjusting a gap for welding junction assembly of large-caliber pipelines. The pull rod device is characterized by comprising connecting lug plates, screwrods, bolts and a spiral casing pipe; the spiral casing pipe is a pipe fitting with internal threads at the two ends, and the internal threads are matched with the screw rods; the number of the screwrods is two, and the two screw rods are respectively engaged with and connected with the two ends of the spiral casing pipe through the threads; the other ends of the screw rods are connected with the connecting lug plates through the bolts; the number of the connecting lug plates is also two, and the two connecting lug plates are respectively connected with pipe openings, to be connected, at thetwo ends in a welding mode; the two screw rods are a right-hand threaded screw rod and a left-hand threaded screw rod respectively; and the heads of the screw rods are provided with U-shaped connecting parts. The pull rod device adopts the structure and the method, and compared with a traditional method for adjusting the gap for welding junction assembly of the large-caliber pipelines, the pull rod device is simple in structure, and convenient to manufacture and install; the gap of welding junctions of the large-caliber pipelines is fine adjusted through the spiral casing pipe; assembly is safe and reliable, short in time consumption, and high in efficiency; and the pull rod device has high adjustment precision and use and popularization values.
Description
technical field [0001] The invention relates to the field of metallurgical industry construction, in particular to a pull rod device for adjusting gaps between large-diameter pipeline weld joint pairs. Background technique [0002] At present, the scale of a single set of metallurgical engineering is getting larger and larger. During the implementation of the project, the proportion of large-diameter pipes has also increased accordingly. For assembling, since there is no assembling platform, when assembling large-diameter pipe welds on the ground, in order to meet the quality standards such as pairing clearance and misalignment, the position is usually adjusted manually by using crowbars and chains. The combination of the crowbar and the pulling of the chain increases the labor intensity of the workers and cannot accurately adjust the gap between the welds, which affects the welding quality. If the chain breaks during pulling, it will endanger the personal safety of the work...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B23K37/053
CPCB23K37/053
Inventor 曾鑫宋文智洪陈超苏会德潘鑫郝军伟
Owner SHANGHAI ERSHIYE CONSTR CO LTD