Adjustable rounding fixture for steel pipes

Abstract

The utility model relates to an adjustable rounding fixture for steel pipes. The adjustable rounding fixture for the steel pipe comprises a U-shaped plate, a connecting rib plate, tapping round steel and a nut, nuts are mounted on two sides of the U-shaped plate; tapping round steel is mounted at two ends of the connecting rib plate; the U-shaped plates are installed on the tapping round steel at the two ends of the connecting rib plate through nuts, and the distance between the two U-shaped plates is adjusted by adjusting the relative positions of the tapping round steel on the nuts. According to the scheme, steel pipe butt welding seams can be balanced and fixed through the circle combining clamp composed of the U-shaped plates and the connecting rib plates, the distance between the U-shaped plates is adjusted through the tapping round steel and the nuts, it is guaranteed that the welding seam deviation is controlled within the process allowable range, and constructors can reinforce the steel pipes through the circle combining clamp; the risk of cracks generated by spot welding of the pressing plate on the surface of the pressure steel pipe is avoided, the construction labor cost is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of steel pipe welding tools, and in particular to an adjustable rounding clamp for steel pipes. Background Art

[0002] Nowadays, in the field of hydropower, penstocks are the main structure. Penstocks with a diameter greater than 3 meters are usually assembled in half. The traditional mode of on-site construction is to use pressure plate spot welding. During welding, due to factors such as deformation of the welding part and welding deviation, dislocation and unevenness are caused, resulting in misalignment. The allowable deviation of the longitudinal seam misalignment in the assembly process is 10δ, and should not be greater than 2mm. The traditional assembly process adds pressure plate codes to the pipe wall, which greatly reduces the efficiency of the assembly. The removal process of the welding code will damage the pipeline. Spot welding too many pressure plate codes is also extremely easy to cause cracks and damage the pipeline. Utility Model Content

[0003] The present application provides an adjustable steel pipe rounding fixture, which aims to solve the problems of easy damage to the pipe and low rounding efficiency in traditional pressure steel pipe rounding welding.

[0004] The present application provides an adjustable steel pipe rounding fixture, comprising a U-shaped plate, a connecting rib plate, a tapped round steel and a nut;

[0005] The nuts are installed on both sides of the U-shaped plate, and the tapped round steel is installed on both ends of the connecting rib plate;

[0006] The U-shaped plate is installed on the tapped round steel connecting the two ends of the rib plate through nuts. The distance between the two U-shaped plates is adjusted by adjusting the relative position of the tapped round steel on the nuts.

[0007] Optionally, in some embodiments, two pairs of nuts are symmetrically installed on both sides of the U-shaped plate, and the number of connecting ribs and tapped round steels corresponds to the number of nuts.

[0008] Optionally, in some embodiments, the U-shaped plate is respectively installed on two steel pipes to be welded, and a pressure plate is provided between the U-shaped plate and the steel pipe.

[0009] The technical solution provided by this application may have the following beneficial effects:

[0010] The butt weld of the steel pipe is balanced and fixed by the circular clamp composed of U-shaped plates and connecting rib plates, and the distance of the U-shaped plates is adjusted by tapping round steel and nuts to ensure that the weld deviation is controlled within the allowable range of the process. Construction workers can use the circular clamp to reinforce the steel pipe and avoid the risk of cracks caused by spot welding pressure plates on the surface of the pressure steel pipe, thereby reducing construction labor costs and improving construction efficiency.

[0011] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0013] Figure 1 1 is a schematic front view of an adjustable steel pipe rounding fixture shown in an embodiment of the present application;

[0014] Figure 2 It is a left schematic view of the adjustable rounding fixture for steel pipes shown in an embodiment of the present application.

[0015] Figure numerals: 1-U-shaped plate, 2-connecting rib plate, 3-tapped round steel, 4-nut. DETAILED DESCRIPTION

[0016] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0017] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0018] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0019] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0020] Nowadays, in the field of hydropower, penstocks are the main structure. Penstocks with a diameter greater than 3 meters are usually assembled in half. The traditional mode of on-site construction is to use pressure plate spot welding. During welding, due to factors such as deformation of the welding part and welding deviation, dislocation and unevenness are caused, resulting in misalignment. The allowable deviation of the longitudinal seam misalignment in the assembly process is 10δ, and should not be greater than 2mm. The traditional assembly process adds pressure plate codes to the pipe wall, which greatly reduces the efficiency of the assembly. The removal process of the welding code will damage the pipeline. Spot welding too many pressure plate codes is also extremely easy to cause cracks and damage the pipeline.

[0021] In response to the above problems, an embodiment of the present application provides an adjustable steel pipe rounding clamp, which can balance and fix the butt weld of the steel pipe through the rounding clamp composed of a U-shaped plate and a connecting rib plate, and adjust the distance of the U-shaped plate by tapping round steel and nuts to ensure that the weld deviation is controlled within the allowable range of the process. Construction personnel can use the rounding clamp to reinforce the steel pipe to avoid the risk of cracks caused by spot welding pressure plates on the surface of the pressure steel pipe, thereby reducing construction labor costs and improving construction efficiency.

[0022] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the structure of the adjustable rounding clamp for steel pipes shown in an embodiment of the present application.

[0024] See also Figure 1 , a steel pipe adjustable rounding fixture, comprising:

[0025] U-shaped plate 1, connecting rib plate 2, tapped round steel 3 and nut 4.

[0026] The two U-shaped plates 1 are symmetrically arranged in an inverted manner, with a total of 8 nuts 4, four of which are welded on each U-shaped plate 1, and the nuts 4 are welded on the U-shaped plates 1 in pairs. There are a total of four connecting rib plates 2, and tapped round steels 3 are welded at both ends of each connecting rib plate 2. The tapped round steels 3 match the nuts 4, and the tapped round steels 3 on the connecting rib plates 2 are installed on the nuts 4. The two U-shaped plates 1 are connected in pairs through the four connecting rib plates 2, and the relative positions of the two U-shaped plates 1 are adjusted by rotating the connecting rib plates 2.

[0027] When the present application is used, the size of the slots of the two U-shaped plates 11 is set according to the two pressure pipes to be welded, the adjustable circular clamp of the steel pipe is assembled, and the distance between the two U-shaped plates 11 is adjusted. The adjustable circular clamp is installed on the two pressure pipes to be welded, so that the two pressure pipes to be welded are aligned, the adjustable circular clamp is fixed by the lever principle, and then the pressure plate is clamped between the pressure steel pipe and the U-shaped plate 11, and the pressure pipe to be welded is fine-tuned to align it and perform welding construction. The risk of cracks caused by spot welding on the surface of the pressure steel pipe is reduced, the construction labor cost is reduced, and the construction efficiency is improved.

[0028] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A steel pipe adjustable rounding fixture, characterized in that: include: U-shaped plate (1), connecting rib plate (2), tapped round steel (3) and nut (4); The nuts (4) are installed on both sides of the U-shaped plate (1), and the tapped round steel (3) is installed on both ends of the connecting rib plate (2); The U-shaped plate (1) is mounted on the tapped round steel (3) connecting the two ends of the rib plate (2) via a nut (4), and the distance between the two U-shaped plates (1) is adjusted by adjusting the relative position of the tapped round steel (3) on the nut (4).

2. The adjustable steel pipe rounding fixture according to claim 1, characterized in that: Two pairs of nuts (4) are symmetrically installed on both sides of the U-shaped plate (1), and the number of connecting ribs (2) and tapped round steels (3) corresponds to the number of nuts (4).

3. The adjustable steel pipe rounding fixture according to claim 1, characterized in that: The U-shaped plates (1) are respectively installed on two steel pipes to be welded, and a pressure plate is arranged between the U-shaped plates (1) and the steel pipes.

Images