CN218904201U

CN218904201U - Pipeline welding supporting device

Info

Publication number: CN218904201U
Application number: CN202223531048.4U
Authority: CN
Inventors: 张伟; 许承凯; 隗合成; 黄仕启; 冯开润; 王庆虎; 胡志强; 邢斌; 季凤来; 周伟
Original assignee: Anhui Jiuzhou Yunjian Aerospace Technology Co ltd
Current assignee: Anhui Jiuzhou Yunjian Aerospace Technology Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-04-25
Anticipated expiration: 2032-12-20

Abstract

The utility model discloses a pipeline welding supporting device, which comprises: the support ring comprises a plurality of support blocks, and each support block is movably connected end to end in sequence to form a ring shape, so that the peripheral diameter of the support ring is adjustable, and the support ring is positioned at the position of a pipeline welding joint; the tightening device is used for being connected with at least two supporting blocks so as to drive the supporting ring to expand outwards, so that the outer ring side wall of the supporting ring is abutted against the inner wall of the pipeline. The supporting ring is abutted to the welding seam of the inner wall of the pipeline to form a heat conductor, so that heat energy at the welding seam can be conducted in the welding process, high temperature generated in the welding process is further prevented from being gathered at the part of the welding seam, rapid heat dissipation is carried out, meanwhile, the residual temperature of the supporting ring after the welding is finished can be transferred to the welding seam, the temperature dip at the welding seam is relieved, and the deformation of the pipeline part caused by the temperature dip is effectively reduced. In addition, the supporting ring generates pressure on the pipeline wall by the supporting device, so that the deformation trend of the pipeline in the welding process is further restrained.

Description

Pipeline welding supporting device

Technical Field

The utility model relates to the technical field of pipeline welding, in particular to a pipeline welding supporting device.

Background

At present, when the pipeline component is designed and processed, the pipeline component is often required to be welded, but the welding part is subjected to high temperature and temperature reduction in a short time in the welding process, so that the pipeline component is distorted and deformed, and particularly, the pipeline component is particularly obvious for a thin-wall pipeline component with a relatively thin wall thickness. For example, in the welding process of an exhaust pipe of an engine, the exhaust pipe rapidly expands and contracts in a short time due to the high temperature of a welding arc, so that a welded thin-walled pipe product is gradually deformed and distorted, and the size and shape of the thin-walled pipe product are out of tolerance.

The deformation caused by welding not only makes the pipeline components fail to meet the design and use standards, but also affects the welding quality and the attractiveness of the pipeline components.

Therefore, how to reduce the distortion generated during the welding of the pipe components, thereby improving the welding quality is a technical problem that needs to be solved by the skilled person at present.

Disclosure of Invention

In view of the above, an object of the present utility model is to provide a pipe welding support device that reduces distortion generated during welding of pipe members and improves welding quality.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a pipe welding support device comprising:

the support ring comprises a plurality of support blocks, each support block is movably connected end to end in sequence to form a ring shape, so that the peripheral diameter of the support ring is adjustable, and the support ring is used for being supported at the position of a welding joint of a pipeline;

and the tightening device is used for being connected with at least two supporting blocks so as to drive the supporting ring to expand outwards, so that the outer ring side wall of the supporting ring is abutted against the inner wall of the pipeline.

Optionally, in the above pipe welding support device, one end of the support block is provided with a first connection part, and the other end is provided with a second connection part mounted in cooperation with the first connection part;

the first connecting part is provided with a first hinge hole, the second connecting part is provided with a second hinge hole, and at least one of the first hinge hole and the second hinge hole is a waist-shaped hole;

two adjacent supporting blocks are respectively matched with the first hinge holes and the second hinge holes through hinge shafts to realize movable connection.

Optionally, in the above pipe welding support device, the first hinge hole and the second hinge hole are waist-shaped holes, a symmetrical center line perpendicular to the extending direction of the waist-shaped holes is a symmetrical center line of the waist-shaped holes, an intersection point of the symmetrical center line of the waist-shaped holes and an outer wall of the support block is a target intersection point, and the extending direction of the waist-shaped holes is parallel to a tangent line at the target intersection point.

Optionally, in the above pipe welding support device, the first connection portion is a boss, the first hinge hole is disposed on the boss, the second connection portion is a clip groove for accommodating the boss, and the second hinge hole is disposed on two clip walls of the clip groove.

Optionally, in the above pipe welding support device, the clamping groove is communicated in a direction from an inner ring to an outer ring of the support ring.

Optionally, in the above pipe welding support device, the tightening device abuts on an inner ring side wall of the support ring.

Optionally, in the above pipe welding support device, the tightening device includes a rotating bracket and an adjusting screw;

the rotating bracket is provided with a first screw hole and a second screw hole;

the adjusting screw rod comprises a first adjusting screw rod and a second adjusting screw rod, and the first adjusting screw rod is in threaded fit with the first screw hole and extends out of the first end of the rotating bracket;

the second adjusting screw is in threaded fit with the second screw hole and extends out of the second end of the rotating support, and the rotation directions of the first adjusting screw and the second adjusting screw are opposite.

Optionally, in the above pipe welding support device, the first adjusting screw and the second adjusting screw are located on the same straight line and pass through the center of the support ring.

Optionally, in the above pipe welding support device, a positioning blind hole for positioning the adjusting screw is provided on an inner ring side wall of the support block.

Optionally, in the above pipe welding support device, the first adjusting screw is matched with a first limit nut for limiting the depth of screwing into the first screw hole;

the second adjusting screw is matched with a second limiting nut which is limited to be screwed into the depth of the second screw hole.

Optionally, in the above pipe welding support device, the rotating bracket is provided with an avoidance space for accommodating the adjusting screw to extend into.

Optionally, in the above pipe welding support device, a weld groove is formed along an outer ring side wall of the support ring so as to be arranged corresponding to the pipe welding seam.

Optionally, in the above pipe welding support device, a plurality of lightening holes are formed in an end face of the support block.

The utility model provides a pipeline welding supporting device which comprises a supporting ring and a tightening device. The support ring further comprises a plurality of support blocks, each support block is connected in an end-to-end movable mode in sequence to form a ring shape, so that the peripheral diameter of the support ring is adjustable, and the support ring is located at the position of a pipeline welding joint to support the position of the welding joint. The supporting ring is connected with the supporting blocks, and the supporting ring is connected with the supporting blocks through the supporting blocks. Therefore, the supporting ring is abutted to the welding seam of the inner wall of the pipeline to form a heat conductor, so that heat energy at the welding seam can be conducted in the welding process, high temperature generated in the welding process is further prevented from being gathered at the part of the welding seam, rapid heat dissipation is carried out, meanwhile, the residual temperature of the supporting ring after the welding is finished can be transferred to the welding seam, the temperature dip at the welding seam is relieved, and the deformation of the pipeline part caused by the temperature dip is effectively reduced. In addition, the supporting ring generates pressure on the pipeline wall by the supporting device, so that the deformation trend of the pipeline in the welding process is further restrained.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a pipe welding support device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of an installation structure of adjacent support blocks according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a tightening device according to an embodiment of the present utility model;

FIG. 4 is a sectional view of an installation of a tightening device with an inner ring of a support ring according to an embodiment of the present utility model;

fig. 5 is a schematic view of a pipe welding support device according to an embodiment of the present utility model.

Wherein 100 is a supporting ring, 110 is a supporting block, 120 is a first connecting part, 121 is a first hinge hole, 130 is a second connecting part, 131 is a second hinge hole, 140 is a positioning blind hole, 150 is a welding seam groove, and 160 is a lightening hole;

200 is a locking device, 210 is a rotating bracket, 211 is a first screw hole, 212 is a second screw hole, 213 is an avoidance space, 220 is an adjusting screw, 221 is a first adjusting screw, 222 is a second adjusting screw, 230 is a first limit nut, and 240 is a second limit nut;

300 is a pin shaft, 310 is a cotter pin;

400 is a first conduit;

500 is a second conduit;

600 is a welded joint.

Detailed Description

The utility model aims at providing a pipeline welding supporting device so as to reduce distortion generated during welding of pipeline components and improve welding quality.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, an embodiment of the present utility model discloses a pipe welding support device including a support ring 100 and a tightening device 200.

The weld quality of the pipeline components directly relates to whether the pipeline components reach the use standard and the later service life, and is an important index for improving the reliability of the pipeline components. Therefore, the quality control of the welding seam is a main control link which is undoubtedly important for the installation and construction of the pipeline components. The thinner the wall thickness of the pipeline is, the more obvious the problems of pipeline deformation, metal loss at the welding seam, welding leakage and the like are caused in the welding process, so that the higher the welding technical requirement on constructors is, the higher the difficulty of the welding process is. The pipeline welding supporting device disclosed by the utility model not only improves the quality of a pipeline welding joint, but also relieves the working strength of constructors in the welding process.

The supporting ring 100 is composed of a plurality of supporting blocks 110, and each supporting block 110 is movably connected end to end in sequence to form a ring shape, so that the outer circumference diameter of the supporting ring 100 is adjustable, and further the outer ring side wall of the supporting ring 100 can be tightly attached to the inner wall of a pipeline to realize surface contact, and the contact area between the supporting ring 100 and the inner wall of the pipeline is increased. Each support block 110 is movably connected such that the connection position of two adjacent support blocks 110 can be adjusted by an external force to adjust the outer diameter of the support ring 100.

The tightening device 200 mounted on the support ring is used for being connected with at least two support blocks 110 to drive the support ring 100 to expand outwards, so that the outer ring side wall of the support ring 100 is abutted against the inner wall of the pipeline. Since the supporting blocks 110 are connected end to end, the tightening device 200 only needs to connect two of the supporting blocks 110 to push the two supporting blocks 110 to expand outwards, so that each supporting block 110 can follow the expansion outwards until all the supporting blocks 110 are tightly attached to the inner wall of the pipeline.

Each supporting shoe 110 all pastes tightly at the inner wall of pipeline, during the welding, can arrange the support ring 100 in the welding seam department of pipeline inner wall, consequently, support ring 100 butt forms a heat conductor in the welding seam department of pipeline inner wall, can come out the heat energy conduction of welding seam department at the welding process, and then avoid the high temperature gathering that produces in the welding process in welding seam part, dispel the heat fast, simultaneously, the surplus temperature of support ring 100 can transmit to welding seam department again after the welding is accomplished, alleviate the temperature dip of welding seam department, thereby effectively reduced the deformation that pipeline part produced because of the temperature dip. In addition, the tightening device 200 causes the support ring 100 to exert pressure on the pipe wall, further inhibiting the tendency of the pipe to deform during welding.

In order to realize the movable connection of the adjacent support blocks 110, a first connecting part 120 is arranged at one end of the support block 110, a second connecting part 130 matched with the first connecting part 120 is arranged at the other end of the support block 110, a first hinge hole 121 is arranged on the first connecting part 120, a second hinge hole 131 is arranged on the second connecting part 130, and the adjacent two support blocks 110 are respectively matched with the first hinge hole 121 and the second hinge hole 131 through hinge shafts 300 so as to realize the movable connection. And at least one of the first hinge hole 121 and the second hinge hole 131 is a waist-shaped hole so that the outer circumferential diameter of the support ring 100 composed of the support blocks 110 of the head-to-tail necklace can be adjusted. The hinge shaft 300 is positioned at different locations of the waist-shaped hole, which may cause the outer circumference diameter of the support ring 100 to be different, and the tightening device 200 is used to push the support ring 100 outwards, so that the hinge shaft 300 slides along the waist-shaped hole, and finally the diameter of the support ring 100 is changed.

Further, in order to increase the adjustment amount of the outer circumferential diameter of the support ring 100, the first hinge hole 121 and the second hinge hole 131 are both provided as waist-shaped holes, and in addition, in order to improve the effectiveness of adjusting the outer circumferential diameter of the support ring 100 by the waist-shaped holes, the support ring 100 is ensured to have a larger diameter adjustment amount on the premise of a limited length of the waist-shaped holes. In the present embodiment, the first hinge hole 121 and the second hinge hole 131 are provided in a manner as shown in fig. 2.

In order to facilitate understanding, a symmetric center line perpendicular to the extending direction (length direction of the waist-shaped hole) of the waist-shaped hole is defined as a symmetric center line of the waist-shaped hole, and an intersection point of the symmetric center line of the waist-shaped hole and the outer wall of the supporting block 110 is defined as a target intersection point.

Note that, the first hinge hole 121 and the second hinge hole 131 may be arc holes having the same center as the center of the support block 110.

As shown in fig. 2, in a specific embodiment, the first connecting portion 120 is a boss, the first hinge hole 121 is disposed on the boss, the second connecting portion 130 is a clamping groove for accommodating the boss, and the second hinge hole 131 is disposed on two clamping walls of the clamping groove, so that the adjacent supporting blocks 110 are fast matched, and installation and use are convenient. In the mounting process, the first connection portion 120 of one support block 110 is inserted into the second connection portion 130 of the other support block 110, and the hinge shaft 300 is inserted after the first hinge hole 121 and the second hinge hole 131 are aligned.

In addition, in order to facilitate the disassembly of the support ring 100 in the pipe after the use, the clamping grooves are communicated in the direction from the inner ring to the outer ring of the support ring 100, so that the adjacent support blocks 110 can rotate towards the center direction of the support ring 100, and the support ring 100 is contracted inwards to facilitate the removal.

In another specific embodiment, the tightening device 200 is disposed in the inner ring of the support ring 100 and abuts against the inner ring sidewall of the support ring 100, thereby facilitating the operation and use of the tightening device 200.

As shown in fig. 3, the tightening device 200 includes a rotating bracket 210 and an adjusting screw 220, the rotating bracket 210 is provided with a first screw hole 211 and a second screw hole 212, and the adjusting screw 220 includes a first adjusting screw 221 and a second adjusting screw 222.

The first adjusting screw 221 is mounted with the first screw hole 211 by screw-fitting, and is extended from the first end of the rotating bracket 210, the second adjusting screw 222 is mounted with the second screw hole 212 by screw-fitting, and is extended from the second end of the rotating bracket 210, and in addition, the rotation directions of the first adjusting screw 221 and the second adjusting screw 222 are opposite. Accordingly, when the rotating bracket 210 rotates, the first and second adjusting screws 221 and 222 move in opposite directions through the first and second screw holes 211 and 212, respectively. For example, rotating the rotating bracket 210 in a clockwise direction increases the length of the tightening device 200, thereby tightening the support ring 100. When the rotating bracket 210 is rotated in the counterclockwise direction, the first and second adjusting screws 221 and 222 are rotated and contracted toward the rotating bracket 210, shortening the length of the tightening device 200, and accomplishing the disassembly of the support ring 100.

In order to keep the first adjusting screw 221 and the second adjusting screw 222 on the same straight line with the moving direction of the tightening device 200 during the rotation adjustment of the tightening device 200, the tightening device 200 and the supporting ring 100 are prevented from generating relative movement, and the first adjusting screw 221 and the second adjusting screw 222 are arranged on the same straight line and pass through the center of the supporting ring 100.

As shown in fig. 3 and 4, in order to enable the tightening device 200 to be located at the center of the supporting ring 100 during the inner ring assembly of the supporting ring 100, a positioning blind hole 140 for positioning the first adjusting screw 221 and the second adjusting screw 222 is provided on the inner ring side wall of the supporting block 110, and when tightening is required, the ends of the first adjusting screw 221 and the second adjusting screw 222 are respectively embedded into the corresponding positioning blind holes 140 to limit the movement of the tightening device 200. The positioning blind holes 140 not only realize the circle center of the supporting ring when the tightening device 200 is installed, but also realize the rapid installation of the tightening device, and prevent the falling-off phenomenon of the tightening device 200 on the inner ring side wall of the supporting ring 100 in the using process.

As shown in fig. 2, in order to allow the adjusting screw 220 to be extended and retracted in the rotating bracket 200, an escape space 213 for accommodating the adjusting screw 220 is provided in the rotating bracket 210. And for the later maintenance of the adjusting screw 220 inside the avoidance space 213, for example, a lubricant is smeared on the adjusting screw 220, so that the rotation process is smoothly performed, the avoidance space 213 may be configured as hollow. Alternatively, in order to prevent the sundries from entering the avoidance space 213 and further affecting the rotation, the avoidance space 213 may be provided as a closed space, and a person skilled in the art may design the apparatus according to the actual situation.

Further, in order to prevent the first and second adjustment screws 221 and 22 from colliding when the depth of screwing into the rotation bracket 200 is too deep, the first and second adjustment screws 221 and 22 are rotated too deeply. The first adjusting screw 221 is fitted with a first limit nut 230 which limits the depth of screwing into the first screw hole 211. Similarly, a second limiting nut 240 is engaged with the second adjusting screw 222 to limit the depth of the second screw hole 212. Alternatively, other stop devices may be employed by those skilled in the art, and are not listed herein.

In another embodiment, as shown in fig. 5, a weld groove 150 is formed along the outer circumferential side wall of the support ring 100, and the weld groove 150 is disposed corresponding to the weld 600, and the surfaces of the two groove side walls of the weld groove 150 are respectively abutted against the inner walls of the first pipe 400 and the second pipe 500, and the weld 600 is placed in the space of the weld groove 150. The weld joint grooves enable molten cladding metal during the welding process to intensively and uniformly cover the weld joint 600, thereby not only reducing the loss of metal liquid and improving the quality of the weld joint 600, but also enabling the appearance of the weld joint 600 to be attractive. In addition, the solder joint groove 150 also serves to suppress occurrence of a phenomenon of solder leakage caused by an excessive current.

As shown in fig. 4, the end surface of the support block 110 is further provided with a plurality of lightening holes 160, and the lightening holes 160 reduce the overall weight of the support ring 100 composed of the plurality of support blocks 110, so that the support ring 100 is light and flexible in use.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

As used in this application and in the claims, the terms "a," "an," "the," and/or "the" are not specific to the singular, but may include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The inclusion of an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises an element.

Wherein, in the description of the embodiments of the present application, "/" means or is meant unless otherwise indicated, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, in the description of the embodiments of the present application, "plurality" means two or more than two.

The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the core concepts of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. A pipe welding support device, comprising:

the support ring (100) comprises a plurality of support blocks (110), wherein each support block (110) is movably connected end to end in sequence to form a ring shape, so that the peripheral diameter of the support ring (100) is adjustable, and the support ring (100) is used for being supported at the position of a welding joint of a pipeline;

and the tightening device (200) is used for being connected with at least two supporting blocks (110) to drive the supporting ring (100) to expand outwards, so that the outer ring side wall of the supporting ring (100) is abutted against the inner wall of the pipeline.

2. The pipe welding supporting device according to claim 1, wherein one end of the supporting block (110) is provided with a first connecting portion (120), and the other end is provided with a second connecting portion (130) mounted in cooperation with the first connecting portion (120);

a first hinge hole (121) is formed in the first connecting portion (120), a second hinge hole (131) is formed in the second connecting portion (130), and at least one of the first hinge hole (121) and the second hinge hole (131) is a waist-shaped hole;

two adjacent supporting blocks (110) are respectively matched with the first hinge holes (121) and the second hinge holes (131) through hinge shafts (300) to realize movable connection.

3. The pipe welding supporting device according to claim 2, wherein the first hinge hole (121) and the second hinge hole (131) are each a waist-shaped hole, a symmetrical center line perpendicular to an extending direction of the waist-shaped hole is a waist-shaped hole symmetrical center line, an intersection point of the waist-shaped hole symmetrical center line and an outer wall of the supporting block (110) is a target intersection point, and the extending direction of the waist-shaped hole is parallel to a tangent line at the target intersection point.

4. The pipe welding supporting device according to claim 2, wherein the first connecting portion (120) is a boss, the first hinge hole (121) is provided on the boss, the second connecting portion (130) is a clip groove accommodating the boss, and the second hinge hole (131) is provided on both clip walls of the clip groove.

5. The pipe welding support device according to claim 4, wherein the clamping grooves are through-going in the direction of the inner ring to the outer ring of the support ring (100).

6. The pipe welding support device according to claim 2, characterized in that the tightening means (200) abut on the inner ring side wall of the support ring (100).

7. The pipe welding support device of claim 6, wherein the tightening device (200) comprises a swivel bracket (210) and an adjusting screw (220);

the rotating bracket (210) is provided with a first screw hole (211) and a second screw hole (212);

the adjusting screw (220) comprises a first adjusting screw (221) and a second adjusting screw (222), wherein the first adjusting screw (221) is in threaded fit with the first screw hole (211) and extends out from the first end of the rotating bracket (210);

the second adjusting screw (222) is in threaded fit with the second screw hole (212) and extends out of the second end of the rotating bracket (210), and the rotation directions of the first adjusting screw (221) and the second adjusting screw (222) are opposite.

8. The pipe welding support device according to claim 7, characterized in that the first adjustment screw (221) and the second adjustment screw (222) are located on the same line and pass through the centre of the support ring (100).

9. The pipe welding support device according to claim 7, characterized in that the inner ring side wall of the support block (110) is provided with a positioning blind hole (140) for positioning the adjusting screw (220).

10. The pipe welding support device according to claim 7, wherein the rotating bracket (210) is provided with a relief space (213) for receiving the adjusting screw (220) to extend into.

11. The pipe welding support device according to claim 7, wherein the first adjusting screw (221) is fitted with a first limit nut (230) limiting the depth of screwing into the first screw hole (211);

the second adjusting screw (222) is matched with a second limit nut (240) which is limited to be screwed into the depth of the second screw hole (212).

12. The pipe welding support device according to any one of claims 1-11, characterized in that a weld groove (150) is provided along the outer ring side wall of the support ring (100) to be arranged in correspondence with the pipe welding seam.

13. The pipe welding support device according to any one of claims 1-11, wherein the end face of the support block (110) is provided with a plurality of lightening holes (160).