Steam pipe circumferential welding device

Abstract

The utility model provides a steam pipe circumferential welding device, which relates to the technical field of circumferential welding and comprises a device body. The device body is provided with a left-right through bearing semicircular cylinder with a downward opening, front-back through fixing cylinders are arranged on the front portion and the back portion of the inner circumference of the bearing semicircular cylinder, left-right through fit grooves are formed in the two ends of the inner circumference of the bearing semicircular cylinder, and insertion blind holes are formed in the centers of the fit grooves of the bearing semicircular cylinder. A closed semicircular cylinder with an upward opening and penetrating left and right is inserted between the wedging grooves of the bearing semicircular cylinder, and wedging grooves penetrating left and right are formed in the two ends of the outer circumference of the closed semicircular cylinder, so that the bearing semicircular cylinder and the closed semicircular cylinder are conveniently and quickly butted through the wedging grooves and are conveniently combined and fixed through a combined fixing column; the problems that the operation process that the device is installed on the outer circumference of the steam pipe in a surrounding mode is tedious, and it is inconvenient to add butt joint matching measures on the device so that the device can be rapidly butt-jointed, combined and fixed are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circumferential welding, in particular to a circumferential welding device for a steam pipe. Background Art

[0002] Steam pipe circumferential welding refers to the process of connecting the circumferential seams of steam pipes by welding. This welding method is usually used in the construction of long-distance steam pipelines to form a continuous steam transmission channel. In the process of steam pipe circumferential welding, it is crucial to choose the appropriate welding method. Common welding methods include arc welding, submerged arc welding, gas metal arc welding, flux-cored arc welding and downward welding.

[0003] Based on the above, the inventors have found that the existing steam pipe circumferential welding device has the following deficiencies:

[0004] 1. The operation process of installing the device around the outer circumference of the steam pipe is relatively cumbersome, and it is not convenient to add docking and fitting measures on the device to enable the device to be quickly docked, combined and fixed;

[0005] 2. When the device is installed around the outer circumference of steam pipes of different diameters, the steam pipe cannot always be located in the center of the device, and it is inconvenient to install centering clamping measures on the device. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a steam pipe circumferential welding device to solve the problem that the existing device is installed around the outer circumference of the steam pipe, the operation process is relatively cumbersome, and it is inconvenient to add docking and fitting measures on the device to enable the device to be quickly docked, assembled and fixed; when the device is installed around the outer circumference of steam pipes of different diameters, the steam pipe cannot always be in the center position of the device, and it is inconvenient to add centering clamping measures on the device.

[0007] The purpose and effect of the steam pipe circumferential welding device of the present invention are achieved by the following specific technical means:

[0008] A steam pipe circumferential welding device comprises a device body; the device body is provided with a load-bearing semi-cylinder with an opening extending downward and leftward, a fixing cylinder extending frontward and backward is provided at the front and back of the inner circumference of the load-bearing semi-cylinder, a fitting groove extending leftward and rightward is provided at both ends of the inner circumference of the load-bearing semi-cylinder, an insertion blind hole is provided at the center of the fitting groove of the load-bearing semi-cylinder, a closed semi-cylinder with an opening extending upward and leftward is inserted between the fitting grooves of the load-bearing semi-cylinder, a fitting groove extending leftward and rightward is provided at both ends of the outer circumference of the closed semi-cylinder, a threaded hole extending frontward and backward is provided at the center of the fitting groove of the closed semi-cylinder, a combined fixing column in the front-back direction is installed inside the threaded hole of the closed semi-cylinder, a thread is provided at the outer circumference of the combined fixing column, and a regular hexagonal groove is provided at the inner end face of the combined fixing column.

[0009] Furthermore, a steam pipe welding gun is inserted into the insertion hole of the movable bearing block in the vertical direction, and a conical head is provided at the lower end of the steam pipe welding gun.

[0010] Furthermore, the threaded hole of the movable bearing block is internally installed with left and right welding gun fixing buttons, a threaded column is provided on the left side of the welding gun fixing button, and a rotating column with an anti-slip groove is provided on the right end face of the threaded column of the welding gun fixing button.

[0011] Furthermore, an insertion hole running through the movable bearing block is provided in the middle of the right end thereof, and threaded holes in left and right directions are provided on the right side wall of the insertion hole of the movable bearing block.

[0012] Furthermore, a movable bearing block in the left and right directions is sleeved in the middle of the bearing semi-cylinder, and an arc-shaped T-shaped groove running through the front and back is opened at the left end of the bottom end surface of the movable bearing block.

[0013] Furthermore, the outer circumferences of the front and rear sides of the clamping rotating rod are both equipped with clamping movable plates in the upper and lower directions, the inner end surface of the clamping movable plate is provided with a trapezoidal groove running through left and right, and the top of the clamping movable plate is provided with a threaded hole running through front and back.

[0014] Furthermore, a clamping rotating rod in the front and rear directions is installed between the fixed cylinders that support the semi-cylinder through bearings, and threads with opposite rotation directions are provided on the outer circumferences of the front and rear sides of the clamping rotating rod. Fixed columns are provided on the front and rear end faces of the clamping rotating rod, and the outer end face of the fixed column of the clamping rotating rod is provided with a regular hexagonal prism.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] It is convenient for the load-bearing semi-cylinder and the closed semi-cylinder to be quickly docked through the fitting groove, and convenient for the load-bearing semi-cylinder and the closed semi-cylinder to be combined and fixed through the combined fixing column, which solves the problem that the operation process of installing the device around the outer circumference of the steam pipe is relatively cumbersome and it is inconvenient to add docking and fitting measures on the device to enable the device to be quickly docked, combined and fixed.

[0017] The convenient clamping rotating rod is installed on the load-bearing semi-cylinder through a bearing to support the clamping movable plate. The convenient clamping movable plate moves synchronously inward and outward through threaded engagement so that the steam pipe is always in the center of the device body, which solves the problem that when the device is installed around the outer circumference of steam pipes of different diameters, the steam pipe cannot always be in the center position of the device, and it is inconvenient to install centering clamping measures on the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a main structural diagram of the present utility model.

[0019] Figure 2 It is a schematic cross-sectional structural diagram of the present utility model.

[0020] Figure 3 It is a schematic diagram of the disassembly structure of the utility model.

[0021] Figure 4 It is a schematic diagram of the assembly of the closed semi-cylinder and the combined fixed column of the utility model.

[0022] Figure 5 It is an assembly diagram of the clamping rotating rod and the clamping moving plate of the utility model.

[0023] Figure 6 It is an assembly diagram of the movable bearing block and the welding gun fixing button of the utility model.

[0024] In the figure: 1. Device body; 2. Carrying semi-cylinder; 3. Closed semi-cylinder; 4. Combined fixing column; 5. Clamping rotating rod; 6. Clamping movable plate; 7. Mobile carrying block; 8. Welding gun fixing button; 9. Steam pipe welding gun. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples.

[0026] Example 1:

[0027] As attached Figure 1 To the attached Figure 6 As shown:

[0028] The utility model provides a steam pipe circumferential welding device, comprising a device body 1; the device body 1 is provided with a bearing semi-cylinder 2 with an opening extending downward and extending left and right, so as to facilitate the bearing of various components; a fixing cylinder extending front and back is provided on the front and back of the inner circumference of the bearing semi-cylinder 2, so as to facilitate the clamping of a rotating rod 5 for installation through a bearing; fitting grooves extending left and right are provided at both ends of the inner circumference of the bearing semi-cylinder 2, so as to facilitate mutual docking with a closed semi-cylinder 3; a blind hole is provided at the center of the fitting groove of the bearing semi-cylinder 2, so as to facilitate the insertion of a combined fixing column 4 into the interior; a closed semi-cylinder 3 with an opening extending left and right is inserted between the fitting grooves of the bearing semi-cylinder 2, so as to facilitate the formation of a closed cylindrical structure; fitting grooves extending left and right are provided at both ends of the outer circumference of the closed semi-cylinder 3, so as to facilitate mutual docking with the bearing semi-cylinder 2; a blind hole is provided at the center of the fitting groove of the closed semi-cylinder 3, so as to facilitate the insertion of a combined fixing column 4 into the interior; The threaded hole facilitates the installation of the combined fixing column 4 through threads. The threaded hole of the closed semi-cylinder 3 is internally installed with the combined fixing column 4 in the front and rear directions, which is convenient for fixing the combination of the bearing semi-cylinder 2 and the closed semi-cylinder 3. The outer circumference of the combined fixing column 4 is provided with threads, which is convenient for installation through threads. The inner end face of the combined fixing column 4 is provided with a regular hexagonal groove, which is convenient for rotation and disassembly by tools. The clamping rotating rod 5 in the front and rear directions is installed between the fixing cylinders of the bearing semi-cylinder 2 through bearings, which is convenient for the clamping rotating rod 5 to rotate. The outer circumferences of the front and rear sides of the clamping rotating rod 5 are provided with threads with opposite rotation directions, which is convenient for the clamping movable plate 6 to move synchronously inward and outward through threaded engagement. The front and rear end faces of the clamping rotating rod 5 are provided with fixing columns, which are convenient for installation through bearings. The outer end face of the fixing column of the clamping rotating rod 5 is provided with a regular hexagonal prism, which is convenient for rotation and adjustment by tools.

[0029] Among them, the outer circumference of the front and rear sides of the clamping rotating rod 5 is equipped with a clamping movable plate 6 in the upper and lower directions, which is convenient for the clamping movable plate 6 to move synchronously inward and outward through threaded engagement. The inner end surface of the clamping movable plate 6 is provided with a left and right through trapezoidal groove, which is convenient for clamping steam pipes of different thicknesses. The top of the clamping movable plate 6 is provided with a threaded hole that runs through the front and back, which is convenient for the clamping rotating rod 5 to be installed through the thread. The middle of the supporting semi-cylinder 2 is provided with a movable bearing block 7 in the left and right directions, which is convenient for the movable bearing block 7 to move in an annular manner along the supporting semi-cylinder 2 and the closed semi-cylinder 3. The left end of the bottom end surface of the movable bearing block 7 is provided with an arc-shaped T-shaped groove that runs through the front and back, which is convenient for anti-slip and movement. The middle of the right end of the movable bearing block 7 is provided with an upper and lower through hole. The insertion hole is penetrated to facilitate the insertion of the steam pipe welding gun 9 inside. The right side wall of the insertion hole of the movable supporting block 7 is provided with left and right threaded holes to facilitate the installation of the welding gun fixing button 8 through threads. The threaded hole of the movable supporting block 7 is internally provided with left and right welding gun fixing buttons 8 to facilitate locking and fixing the steam pipe welding gun 9. A threaded column is provided on the left side of the welding gun fixing button 8 to facilitate installation through threads. The right end face of the threaded column of the welding gun fixing button 8 is provided with a rotating column with an anti-slip groove to facilitate rotation and anti-slip. The steam pipe welding gun 9 in the upper and lower directions is inserted into the insertion hole of the movable supporting block 7 to facilitate the up and down movement and adjustment of the steam pipe welding gun 9. A conical head is provided at the lower end of the steam pipe welding gun 9 to facilitate the weld fitting between the steam pipe.

[0030] The specific usage and function of this embodiment are as follows:

[0031] In the present utility model, Figure 1 As shown, the device body 1 is installed on the steam pipe. At this time, the upper end of the steam pipe welding gun 9 is in a cut-off state, and the lower end of the steam pipe welding gun 9 is inside the weld between the steam pipes. Then, the movable supporting block 7 is moved around along the supporting semi-cylinder 2 and the closed semi-cylinder 3. The steam pipe welding gun 9 is driven by the movable supporting block 7 to move along the weld between the steam pipes, thereby realizing the circumferential welding of the steam pipe. When Figure 1 As shown, when the device body 1 is removed from the steam pipe, the combined fixing column 4 is rotated by a tool to engage with the threaded closed semi-cylinder 3, so that the combined fixing column 4 moves inward through the threaded engagement to disengage from the inside of the blind hole of the load-bearing semi-cylinder 2, thereby releasing the combined fixation of the load-bearing semi-cylinder 2 and the closed semi-cylinder 3 by the combined fixing column 4. This form is convenient for quick disassembly and assembly, and then the closed semi-cylinder 3 is removed, and the clamping rotating rod 5 is rotated by a tool to engage with the clamping movable plate 6 through the thread, so that the clamping movable plate 6 moves synchronously outward through the threaded engagement, thereby releasing the clamping of the clamping movable plate 6 on the steam pipe, and the load-bearing semi-cylinder 2 is moved upward to disengage from the steam pipe, thereby completing the disassembly of the device body 1. At the same time, the form of synchronous inward and outward movement of the clamping movable plate 6 makes it convenient to always keep the steam pipe in the center position of the device body 1.

[0032] Example 2:

[0033] The difference from the first embodiment is that the regular hexagonal groove of the combined fixing column 4 can also be set as a regular heptagonal groove, so that the combined fixing column 4 can only be rotated by a special tool that cooperates with the regular heptagonal groove, preventing non-staff from rotating and disassembling the combined fixing column 4.

[0034] Example 3:

[0035] The difference from Example 1 is that the regular hexagonal prism of the clamping rotating rod 5 can also be set as a regular heptagonal prism, so that the clamping rotating rod 5 can only be rotated by a special tool that cooperates with the regular heptagonal prism, preventing non-staff from rotating and adjusting the clamping rotating rod 5.

Claims

1. A steam pipe circumferential welding device, characterized in that: The invention comprises a device body (1); the device body (1) is provided with a bearing semi-cylinder (2) with an opening extending downward and extending left and right; a fixing cylinder extending front and back is provided on the front and back of the inner circumference of the bearing semi-cylinder (2); a fitting groove extending left and right is provided at both ends of the inner circumference of the bearing semi-cylinder (2); an insertion blind hole is provided in the center of the fitting groove of the bearing semi-cylinder (2); a closed semi-cylinder (3) with an opening extending upward and extending left and right is inserted between the fitting grooves of the bearing semi-cylinder (2); a fitting groove extending left and right is provided at both ends of the outer circumference of the closed semi-cylinder (3); a threaded hole extending front and back is provided in the center of the fitting groove of the closed semi-cylinder (3); a combined fixing column (4) in the front and back direction is installed inside the threaded hole of the closed semi-cylinder (3); a thread is provided on the outer circumference of the combined fixing column (4); and a regular hexagonal groove is provided on the inner end surface of the combined fixing column (4).

2. A steam pipe circumferential welding device as claimed in claim 1, characterized in that: A clamping rotating rod (5) is installed between the fixed cylinders of the supporting semi-cylinder (2) via bearings. Threads with opposite rotation directions are provided on the outer circumferences of the front and rear sides of the clamping rotating rod (5). Fixed columns are provided on the front and rear end faces of the clamping rotating rod (5). The outer end faces of the fixed columns of the clamping rotating rod (5) are provided with regular hexagonal prisms.

3. A steam pipe circumferential welding device as claimed in claim 2, characterized in that: The outer circumferences of the front and rear sides of the clamping rotating rod (5) are both equipped with clamping movable plates (6), the inner end surface of the clamping movable plate (6) is provided with a trapezoidal groove that passes through left and right, and the top of the clamping movable plate (6) is provided with a threaded hole that passes through front and back.

4. A steam pipe circumferential welding device as claimed in claim 2, characterized in that: A movable bearing block (7) is sleeved in the middle of the bearing semi-cylinder (2), and an arc-shaped T-shaped groove running through the front and back is provided at the left end of the bottom end surface of the movable bearing block (7).

5. A steam pipe circumferential welding device as claimed in claim 4, characterized in that: An insertion hole that passes through the movable bearing block (7) from top to bottom is provided in the middle of the right end thereof, and threaded holes in left and right directions are provided on the right side wall of the insertion hole of the movable bearing block (7).

6. A steam pipe circumferential welding device as claimed in claim 5, characterized in that: A welding gun fixing button (8) is installed inside the threaded hole of the movable bearing block (7), a threaded column is provided on the left side of the welding gun fixing button (8), and a rotating column with an anti-slip groove is provided on the right end surface of the threaded column of the welding gun fixing button (8).

7. A steam pipe circumferential welding device as claimed in claim 6, characterized in that: A steam pipe welding gun (9) is inserted into the insertion hole of the movable bearing block (7), and a conical head is provided at the lower end of the steam pipe welding gun (9).

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