CN215315203U

CN215315203U - Tool for pressing seam of pressure steel pipe stiffening ring

Info

Publication number: CN215315203U
Application number: CN202120567789.4U
Authority: CN
Inventors: 杜宁; 李采文; 张小山
Original assignee: Sinohydro Bureau 14 Co Ltd
Current assignee: Sinohydro Bureau 14 Co Ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-12-28
Anticipated expiration: 2031-03-19

Abstract

The utility model relates to a tool for pressing a seam of a pressure steel pipe stiffening ring, belonging to the field of mechanical auxiliary equipment of hydraulic and hydroelectric engineering, and comprising a stand column, a bracket and a clamp; the upright column is a ladder-shaped frame, and a jack support is arranged on the outer side of the upright column; the bracket is fixed at the upper end of the inner side of the upright post; the clamp comprises an arc-shaped plate, a positioning plate, two upper rollers and an upper roller support, wherein the inner edges of the arc-shaped plate and the positioning plate are relatively fixed on the bracket, and the inner edges of the arc-shaped plate and the positioning plate are arc-shaped; the two upper rollers are symmetrically fixed on two sides of the bracket through the upper roller support respectively and are positioned above the arc-shaped plate and the positioning plate. According to the utility model, the clamp is arranged to be in contact with the pipe wall of the pressure steel pipe and the upper pipe orifice, so that the clamp can flexibly move along the circumferential direction of the pressure steel pipe, the adjustment of the stiffening ring welding seam of the pressure steel pipe at each part is met, the damage of the mother material of the pressure steel pipe is avoided, and the operation efficiency is improved.

Description

Tool for pressing seam of pressure steel pipe stiffening ring

Technical Field

The utility model belongs to the field of mechanical auxiliary equipment of hydraulic and hydroelectric engineering, and particularly relates to a tool for pressing a seam of a pressure steel pipe stiffening ring.

Background

When the pressure steel pipe stiffening ring joint pressing operation is performed, a wedge pressing plate is welded on the outer wall of the pressure steel pipe, and the longitudinal joint and the annular joint of the pressure steel pipe stiffening ring are adjusted by matching the wedge pressing plate and a wedge plate. Therefore, it is necessary to provide a highly efficient joint-pressing tool for a stiffening ring of a penstock, which can prevent damage to the penstock base metal.

Disclosure of Invention

In order to overcome the problems in the background art, the utility model provides a pressure steel pipe stiffening ring seam pressing tool, which enables a clamp to move along the circumferential direction of a pressure steel pipe by arranging the clamp to be in contact with the pipe wall of the pressure steel pipe and an upper pipe orifice, meets the requirement of adjusting the welding seam of the stiffening ring at each part, avoids the damage of a pressure steel pipe base metal and improves the operation efficiency.

In order to realize the purpose, the utility model is realized by the following technical scheme:

the terms of orientation such as left and right in the present specification are used for convenience of describing the structure of the present invention, and the present invention is not limited by the terms of orientation in actual use.

The tool for pressing the seam of the pressure steel pipe stiffening ring comprises an upright post 1, a bracket 2 and a clamp 3; the upright post 1 is a ladder-shaped frame, and a jack support 12 is arranged on the outer side of the upright post 1; the bracket 2 is fixed at the upper end of the inner side of the upright post 1; the clamp 3 comprises an arc-shaped plate 4, a positioning plate 5, two upper rollers 6 and an upper roller support 7, the inner edges of the arc-shaped plate 4 and the positioning plate 5 are relatively fixed on the bracket 2, and the inner edges of the arc-shaped plate 4 and the positioning plate 5 are arc-shaped; the two upper rollers 6 are symmetrically fixed on two sides of the bracket 2 through upper roller supports 7 and are positioned above the arc-shaped plate 4 and the positioning plate 5.

Preferably, the top end surfaces of the upright post 1 and the bracket 2 are provided with panels 8, and the panels are provided with lifting lugs 9.

Preferably, the two positioning plates 5 are arranged correspondingly, the side roller 10 is arranged between the two positioning plates 5, and the side roller 10 is located at the inner end of the two positioning plates 5.

Preferably, rolling bearings 11 are arranged at two ends of the upper roller 6.

Preferably, a 7-shaped jack supporting plate 13 is arranged in the middle of the inner side of the jack support 12.

The utility model has the beneficial effects that:

1. the clamp is arranged to be in contact with the wall of the pressure steel pipe, the clamp can move along the circumferential direction of the pressure steel pipe, the adjustment of the stiffening ring welding seam of the pressure steel pipe at each position is met, the stress can be conveniently applied without extra support by arranging the jack support, the operation efficiency is improved while the parent metal of the pressure steel pipe is not damaged, and the clamp is simple to manufacture, flexible and easy to use.

2. The utility model is provided with the arc-shaped plate and the positioning plate, the arc-shaped plate is contacted with the inner wall of the pressure steel pipe, so that the radial large-amplitude movement of the pressure steel pipe in use can be avoided, and the positioning plate is contacted with the outer wall of the pressure steel pipe to play a positioning role.

3. The pressure steel pipe stiffening ring is provided with the upper roller and the side rollers, the upper roller is in contact with the upper pipe orifice of the pressure steel pipe, and the side rollers are in contact with the outer wall of the pressure steel pipe, can move along the circumference of the pressure steel pipe and are convenient to move to each installation position of the pressure steel pipe stiffening ring.

4. The utility model is provided with a jack support and a jack support plate, wherein the jack support is mainly a jack stress part, so that the pressure steel pipe stiffening ring is convenient to stress, and the jack support plate is mainly used for placing a jack on the top surface of the jack support plate, so that the jack is prevented from sliding off in the use process.

Drawings

FIG. 1 is a schematic structural view of the present invention (without a panel and lifting lugs);

FIG. 2 is a schematic structural view of the present invention (with a panel and lifting lugs);

FIG. 3 is a schematic left side view of the structure of FIG. 2;

FIG. 4 is a schematic front view of the structure of FIG. 2;

in the figure, 1-upright column, 2-bracket, 3-clamp, 4-arc plate, 5-positioning plate, 6-upper roller, 7-upper roller support, 8-panel, 9-lifting lug, 10-side roller, 11-rolling bearing, 12-jack support and 13-jack supporting plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the skilled person.

As shown in figures 1-4, the tool for pressing the seam of the pressure steel pipe stiffening ring comprises a stand column 1, a bracket 2 and a clamp 3. The upright column 1 is a ladder-shaped frame made of I-shaped steel through welding and used for assisting the stress of the pressure steel pipe stiffening ring. The jack support 12 is welded on the outer side of the upright column 1, and the position of the jack support 12 corresponds to the position of the pressure steel pipe stiffening ring arranged on the pressure steel pipe, so that the pressure steel pipe stiffening ring is aligned with a jack. The inner side of the jack support 12 is centrally cut into a groove with the diameter of the jack base, the jack support 12 is mainly the stress part of the jack, and the jack base is in contact with the concave part in the jack support 12, so that the jack is stressed conveniently. The jack support plate 13 of "7" font is welded to the inboard welding of jack support 12, and jack support plate 13 one side welding is in jack support 12 indent department, and the another side passes stand 1 and flushes with stand 1 inboard, can place the jack at jack support plate 13 top surface to hold the jack, avoid the jack landing during the use.

The support 2 is made of I-shaped steel through welding, the support 2 is welded on the upper portion of the upright post 1, and the clamp 3 is welded on the support 2. The clamp 3 comprises an arc-shaped plate 4, a positioning plate 5, two upper rollers 6 and a roller support 7. The inner edges of the arc-shaped plate 4 and the positioning plate 5 are arc-shaped, and the radian is consistent with that of the pipe wall of the pressure steel pipe. The inner edges of the arc-shaped plate 4 and the positioning plate 5 are relatively welded on the bracket 2. The arc-shaped plate 4 is contacted with the inner wall of the pressure steel pipe, so that the radial large-amplitude movement of the pressure steel pipe can be avoided during use, and the stability is enhanced. The positioning plate 5 is contacted with the outer wall of the pressure steel pipe to play a positioning role. The positioning plate 5 and the arc-shaped plate 4 act together to enable the pressure steel pipe to be adjusted only in a small range in the radial direction. The locating plate 5 sets up two, and inner trompil just corresponds each other, and trompil position department between two locating plates 5 is equipped with side gyro wheel 10, and side gyro wheel 10 and the contact of pressure steel pipe outer wall can be followed the slip of pressure steel pipe outer wall, increases the flexibility ratio of removal. Upper roller supports 7 are welded on two sides of the support 2 respectively, two upper rollers 6 are symmetrically installed on two sides of the support 2 through the upper roller supports 7 respectively, and the two upper rollers 6 are located above the arc-shaped plate 4 and the positioning plate 5. Rolling bearings 11 are arranged in two ends of the upper roller 6, so that the rotation flexibility of the upper roller 6 can be improved. The upper roller 6 is in contact with the pipe orifice on the pressure steel pipe, can flexibly move along the pipe orifice on the pressure steel pipe, and has a positioning effect on the axial direction of the pressure steel pipe. The panel 8 of the lifting lug 9 is convenient to set up in the welding of stand 1 and support 2 top face, and the panel 8 is for being greater than the square steel plate of stand 1 and support 2 top face, can strengthen stability. The lifting lug 9 is welded on the panel 8, so that the suspension is convenient. The lifting lug 9 is positioned above the upright post 1 and can keep balance when in suspension.

The working process of the utility model is as follows: before the pressure steel pipe is pressed and sewed by the stiffening ring, the opening of the pressure steel pipe is vertically placed on the ground towards the sky, the utility model is suspended to the upper opening of the pressure steel pipe by a lifting lug 9 by utilizing a hoisting device, so that the upper idler wheels 6 are contacted with the upper opening of the pressure steel pipe, and the positioning plate 5 and the arc-shaped plate 4 are respectively contacted with the outer wall and the inner wall of the pressure steel pipe. The utility model is pushed to the pressure steel pipe stiffening ring seam pressing position, the jack is placed in the jack support plate 13, the jack is aligned with the pressure steel pipe stiffening ring, the jack can be operated to gradually stress the outer ring of the pressure steel pipe stiffening ring, so that the pressure steel pipe stiffening ring is gradually pressurized and stressed until the inner ring of the pressure steel pipe stiffening ring is well contacted with the outer wall of the pressure steel pipe, and the design technical requirement is met. And after one position is finished, pushing the steel tube stiffening ring welding seam adjusting device to the next position to perform the steps repeatedly until the adjustment of the stiffening ring welding seams of the pressure steel tubes at all positions is finished.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the utility model, and that, although the utility model has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a tool for pressure steel pipe stiffening ring pressure joint which characterized in that: the tool for pressing the seam of the pressure steel pipe stiffening ring comprises a stand column (1), a bracket (2) and a clamp (3); the upright post (1) is a ladder-shaped frame, and a jack support (12) is arranged on the outer side of the upright post (1); the bracket (2) is fixed at the upper end of the inner side of the upright post (1); the clamp (3) comprises an arc-shaped plate (4), a positioning plate (5), two upper rollers (6) and an upper roller support (7), the inner edges of the arc-shaped plate (4) and the positioning plate (5) are relatively fixed on the bracket (2), and the inner edges of the arc-shaped plate (4) and the positioning plate (5) are arc-shaped; the two upper rollers (6) are symmetrically fixed on two sides of the bracket (2) through upper roller supports (7) and are positioned above the arc-shaped plate (4) and the positioning plate (5).

2. The tool for pressing the seam of the stiffening ring of the penstock as claimed in claim 1, wherein: the top end faces of the upright post (1) and the support (2) are provided with a panel (8), and the panel (8) is provided with a lifting lug (9).

3. The tool for pressing the seam of the stiffening ring of the penstock as claimed in claim 1, wherein: the positioning plates (5) are arranged in two corresponding positions, side rollers (10) are arranged between the two positioning plates (5), and the side rollers (10) are located at the inner ends of the two positioning plates (5).

4. The tool for pressing the seam of the stiffening ring of the penstock as claimed in claim 1, wherein: and rolling bearings (11) are respectively arranged at two ends of the two upper rollers (6).

5. The tool for pressing the seam of the stiffening ring of the penstock as claimed in claim 1, wherein: the inner side of the jack support seat (12) is provided with a 7-shaped jack supporting plate (13).