Internal clamp

An internal counterpart and integrated technology, applied in auxiliary devices, gas/liquid distribution and storage, applications, etc., can solve the problems of unsatisfactory welding conditions and long axial length, etc., to reduce size and shorten axial length , good calibration effect

Active Publication Date: 2015-06-10
LUOYANG DEPING TECH
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Problems solved by technology

[0002] The internal counterpart is used for the counterpart of two pipes before welding. The internal counterpart used in the prior art is mostly the internal counterpart of the long pipe section. The internal counterpart includes a front frame, tensioning mechanism I, expansion Tightening mechanism II, rear frame, driving mechanism, gas storage tank, rear traveling wheel, front traveling wheel and control system; the rear traveling w

Method used

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Example Embodiment

[0024] The present invention will be described with reference to the drawings and specific embodiments:

[0025] Such as figure 1 As shown, a short tube inner pairing device, said inner pairing device includes a frame, a tensioning mechanism I33, a tensioning mechanism II34, a tensioning mechanism III35, a traveling wheel II25 and a traveling wheel I1; the machine The frame includes a base 3 and an outer cover 4; the base 3 is provided with a pull ring 2 for hanging wire rope traction equipment during the welding process, which is screwed on the base 3, or can be directly welded or formed into an integral structure with the base 3 The tightening mechanism Ⅰ 33, the tightening mechanism Ⅱ 34, and the tightening mechanism Ⅲ 35 are arranged coaxially and adjacently arranged in the axial direction; the tightening mechanism Ⅱ 34 and the tightening mechanism Ⅲ 35 are a group, which are located in the same during construction In the pipeline; the tensioning mechanism II 34 and the tensi...

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Abstract

The invention relates to pipeline construction equipment, and provides an internal clamp which adopts the structure that a tensioning mechanism I (33), a tensioning mechanism II (34) and a tensioning mechanism III (35) are axially arranged and adjacent to one another; the tensioning mechanism II (34) and the tensioning mechanism III (35) are arranged corresponding to the same pipeline, and driven by the same hydraulic cylinder I; an actuating element III (19) and an actuating element II (16) are axially arranged side by side; the actuating element III (19) and the actuating element II (16) are used for pushing the tensioning mechanism III (35) and the tensioning mechanism II (34) to perform head pressing actions respectively, and adopt an integrated structure or are connected into an integration; the hydraulic cylinder I is used for driving the tensioning mechanism II (34) and the tensioning mechanism III (35) to act; a hydraulic cylinder II is used for driving the tensioning mechanism I (33) to act; the hydraulic cylinders (I and II) move in the same direction, and adopt an internal-external sleeving structure. Through the adoption of the internal clamp, the requirement for butt welding in such welding conditions as a welding assessment experiment and welding of an equipment process pipeline can be met.

Description

technical field [0001] The invention relates to pipeline construction equipment, in particular to an internal counterpart, especially suitable for welding conditions of short pipe joints such as welding evaluation experiments and process pipelines of equipment. Background technique [0002] The internal counterpart is used for the counterpart of two pipes before welding. The internal counterpart used in the prior art is mostly the internal counterpart of the long pipe section. The internal counterpart includes a front frame, tensioning mechanism I, expansion Tightening mechanism II, rear frame, driving mechanism, gas storage tank, rear traveling wheel, front traveling wheel and control system; the rear traveling wheel and tensioning mechanism II are located in the same pipeline, and tensioning mechanism II supports and cooperates with the rear traveling wheel Jointly complete the centering of equipment and pipelines; due to the existing structural design and arrangement of t...

Claims

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Application Information

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IPC IPC(8): B23K37/053
CPCB23K37/0531B23K2101/10
Inventor 王光临李建春朱品朱晓光宋攀攀
Owner LUOYANG DEPING TECH
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