CN-121061495-B - Pipeline welding supporting device

CN121061495BCN 121061495 BCN121061495 BCN 121061495BCN-121061495-B

Abstract

The invention discloses a pipeline welding supporting device which comprises a pushing unit, an extrusion unit, a push rod, a base support, a clamping jaw and an extrusion unit, wherein the pushing unit comprises a pressing plate, an inserting block, a floating sleeve and an elastic sheet, the inserting block is in linkage with the pressing plate, the floating sleeve is arranged on the inner side of the pressing plate, the elastic sheet is arranged in the floating sleeve, the extrusion unit is used for pushing the pressing plate to move downwards, a through hole is formed in the floating sleeve, the end part of the elastic sheet penetrates through the inner side of the through hole, the end part of the push rod is connected with the clamping jaw, the base support is used for bearing a corresponding pipeline and is matched with the clamping jaw through the inner wall of the base support to fix the position of the pipeline, the pressing unit pushes the pressing plate to move, the inserting block can be pushed against the elastic sheet, and the pressed expansion of the elastic sheet is pushed against the inner wall of the through hole to fix the position of the push rod and the pressing plate. The clamp plate pushes down and can drive the inserted block and remove, further takes the push rod to be close to the pipeline lateral wall, and then eliminates the installation clearance between clamping jaw and the pipeline, guarantees the stability of pipeline centre gripping.

Inventors

FAN ZHIYONG
CHEN JUNJIE
LIU HAO
LU QINGXIAN
ZHANG XIAOFEI
TANG JIANMING
LIU CHAO
LI GAOFENG
WANG YANBO
GAO FUYOU

Assignees

华能西藏雅鲁藏布江水电开发投资有限公司
中国水利水电第十四工程局有限公司

Dates

Publication Date: 20260508
Application Date: 20250829

Claims (6)

1.A pipeline welding supporting device is characterized by comprising, The pushing unit (1) comprises a pressing plate (11), an inserting block (12) linked with the pressing plate (11), a floating sleeve (13) arranged on the inner side of the pressing plate (11) and a spring piece (14) arranged in the floating sleeve (13); A pressing unit (2) for pushing the pressing plate (11) to move downward; The push rod (3) is arranged at the inner side of the floating sleeve (13), a through hole (31) is formed in the floating sleeve (13), and the end part of the elastic sheet (14) penetrates through the inner side of the through hole (31); the end part of the push rod (3) is connected with a clamping jaw (32); The base support (4) is used for bearing corresponding pipelines, and the positions of the pipelines are fixed by matching the inner walls of the base support (4) with the clamping jaws (32); The pressing unit (2) pushes the pressing plate (11) to move, so that the insertion block (12) can be abutted against the elastic sheet (14), the elastic sheet (14) is pressed and expanded to be abutted against the inner wall of the through hole (31), and the push rod (3) and the pressing plate (11) are fixed in position; the support sleeve (5) is arranged on the surface of the base support (4); The inside of the supporting sleeve (5) is of a hollow structure, a fixed sleeve (6) is arranged on the inner side of the supporting sleeve (5), and the floating sleeve (13) is sleeved on the inner side of the fixed sleeve (6); the push rod (3) penetrates through the supporting sleeve (5) and extends to the outer side of the supporting sleeve The floating sleeve (13) is arranged on the inner side of the fixed sleeve (6), and the insertion block (12) penetrates through the fixed sleeve (6) and the floating sleeve (13) and extends to the inner side of the through hole (31); the side wall of the floating sleeve (13) is provided with a side hole (131); the number of the elastic pieces (14) is one, and one group of the elastic pieces (14) is symmetrically arranged at the inner side of the side hole (131); The insertion block (12) penetrates through the side hole (131) and extends into a group of gaps of the elastic sheet (14); the inserting block (12) can push the elastic sheet (14) to abut against the inner wall of the through hole (31) so as to fix the position between the elastic sheet (14) and the push rod (3); The pressing plate (11) is of a Z-shaped structure, and the pressing plate (11) comprises an extrusion surface (111) and a supporting surface (112); a first waist hole (1111) which is vertically distributed is formed in the surface of the extrusion surface (111), an inclined second waist hole (1121) is formed in the surface of the supporting surface (112), and the first waist hole (1111) is communicated with the second waist hole (1121); the insert block (12) comprises a guide rod (121) arranged at the end part of the insert block, and the guide rod (121) moves along a slideway formed by combining the first waist hole (1111) and the second waist hole (1121); The extrusion surface (111) is abutted against the insert block (12) and can push the insert block (12) to be inserted into the inner side of a group of elastic sheets (14); The guide rod (121) moves to the inner side of the second waist hole (1121), and the pressing plate (11) can downwards drive the insertion block (12) to move along the axial direction of the push rod (3).
2. The pipe welding support device of claim 1, wherein: The number of the elastic pieces (14) is two, and the two elastic pieces (14) are symmetrically distributed along the axis of the floating sleeve (13); the elastic sheet (14) is fixedly connected with the floating sleeve (13).
3. The pipe welding support device of claim 2, wherein: the fixing sleeve (6) is fixedly connected with the supporting sleeve (5); the fixed sleeve (6) is provided with a group of pressing plates (11) along two sides of the axis; the pressing plates (11) are positioned on two sides of the push rod (3) to synchronously push the inserting blocks (12) to squeeze the elastic pieces (14) to be connected with the push rod (3).
4. A pipe welding support device according to claim 3, wherein: the extrusion unit (2) comprises a screw sleeve (21) connected with the supporting sleeve (5), and a screw cap (22) in threaded fit with the screw sleeve (21); the screw sleeve (21) is fixedly connected with the supporting sleeve (5), and the bottom of the screw cap (22) can be abutted against the end part of the pressing plate (11).
5. The pipe weld support apparatus according to claim 4, wherein: The side wall of the base support (4) is provided with a connecting sleeve (71), a screw rod (72) arranged in the connecting sleeve (71), and a supporting arm (73) arranged at the end part of the screw rod (72).
6. The pipe welding support device of claim 5, wherein: the pushing unit (1) is arranged inside the supporting arm (73), and the supporting arm (73) is spaced from the bottom surface of the base support (4).

Description

Pipeline welding supporting device Technical Field The invention relates to the technical field of pipeline welding, in particular to a pipeline welding supporting device. Background The power plant pipeline system is used as a core conveying channel of a high-temperature high-pressure medium, the structural reliability of the power plant pipeline system is directly related to safe operation of a unit, a metal pipeline is the first choice material because of creep resistance, corrosion resistance and weldability, however, the power plant pipeline layout needs to adapt to complex space constraint, so that more than 90% of pipelines are bent at multiple angles, and sealing and bearing of the special-shaped pipeline sections need to be realized through welding. In the welding operation of power plant pipelines, the adjusting efficiency of a clamping mechanism directly restricts the construction progress and personnel safety, the existing screw feeding type clamping device has obvious defects when facing pipe diameter diversity, the screw needs to be rotated 15-30 circles for each pipe diameter switching, the distance of an adjusting screw is accumulated for a plurality of times in a single overhaul, workers in a narrow pipe gallery need to operate in a non-standard posture, the physical health of the workers is influenced, meanwhile, the unstable condition of the pipeline clamping process is caused, the precision of welding points cannot be ensured, the number of circles is reduced in the traditional hydraulic or gear speed-increasing improvement scheme, the system complexity maintenance cost is high, and the high-dust and strong-vibration environment of a power plant cannot be adapted. Disclosure of Invention Therefore, the invention aims to solve the technical problem that the existing pipeline welding is fixed in a screw feeding mode, and the adjustment of the screw position is time-consuming when clamping pipelines with different pipe diameters. The technical problem is solved by the following technical scheme that the pipeline welding supporting device comprises a pushing unit, a supporting unit and a supporting unit, wherein the pushing unit comprises a pressing plate, an inserting block, a floating sleeve and an elastic sheet, the inserting block is in linkage with the pressing plate, the floating sleeve is arranged on the inner side of the pressing plate, and the elastic sheet is arranged in the floating sleeve; the pressing unit is used for pushing the pressing plate to move downwards; the push rod is arranged at the inner side of the floating sleeve, a through hole is formed in the floating sleeve, and the end part of the elastic sheet penetrates through the inner side of the through hole; The end part of the push rod is connected with a clamping jaw; The base support is used for bearing corresponding pipelines and is matched with the clamping jaws through the inner wall of the base support to fix the positions of the pipelines; The extrusion unit pushes the pressing plate to move, so that the insertion block can be abutted against the elastic sheet, the elastic sheet is pressed and expanded to be abutted against the inner wall of the through hole, and the push rod is fixed with the pressing plate in position. In a preferred embodiment of the pipe welding support device of the present invention, the support sleeve is mounted to the base support surface; The inside of the supporting sleeve is of a hollow structure, a fixed sleeve is arranged on the inner side of the supporting sleeve, and the floating sleeve is sleeved on the inner side of the fixed sleeve; The push rod penetrates through the support sleeve and extends to the outer side of the support sleeve The floating sleeve is arranged on the inner side of the fixed sleeve, and the insertion block penetrates through the fixed sleeve and the floating sleeve and extends to the inner side of the through hole. In a preferred embodiment of the pipeline welding support device, the side wall of the floating sleeve is provided with a side hole; The number of the elastic sheets is one group, and one group of the elastic sheets is symmetrically arranged on the inner side of the side hole; the insertion block penetrates through the side hole and extends into a group of elastic piece gaps; The inserting block can push the elastic sheet to abut against the inner wall of the through hole, so that the position between the elastic sheet and the push rod is fixed. In a preferred embodiment of the pipeline welding support device, the pressing plate is of a Z-shaped structure and comprises a pressing surface and a support surface; The surface of the extrusion surface is provided with a first waist hole which is vertically distributed, the surface of the supporting surface is provided with a second inclined waist hole, and the first waist hole is communicated with the second waist hole; the insert comprises a guide rod arranged at the end part of the insert, and the