Pressure vessel welding device

Abstract

The utility model discloses a pressure vessel welding device which comprises a bottom plate, a fixed base is arranged at the top of the bottom plate, vertical frames located on the two sides of the fixed base are fixedly installed at the top of the bottom plate, lifting motors are fixedly installed at the tops of the vertical frames, threaded rods are rotationally connected to the interiors of the vertical frames, and the threaded rods are fixedly connected to the top of the bottom plate. The threaded rod is connected with a lifting block in a penetrating and threaded mode, a lifting ring located in the middle of the vertical frame is integrally connected to the side face of the lifting block, an annular sliding rail is fixedly installed at the top of the lifting ring, an annular rack is fixedly installed at the bottom of the peripheral face of the annular sliding rail, and a movable block is slidably connected to the top of the annular sliding rail. And an electric push rod is fixedly mounted at the top of the movable block. The vertical frame, the lifting block, the lifting ring and the annular sliding rail are arranged to be adjusted to the height needed by welding, the electric push rod pushes the welding gun to the welding seam, boiler bodies of different heights can be welded, and application is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of welding devices, in particular to a pressure vessel welding device. Background Art

[0002] A boiler is a mechanical device that uses the thermal energy of fuel or other energy sources to heat water into hot water or steam. The original meaning of "pot" refers to a container for holding water heated over fire, while "furnace" refers to the place where fuel is burned. A boiler consists of two major parts: the pot and the furnace. The hot water or steam produced in the boiler can directly provide the thermal energy needed for industrial production and people's lives, or it can be converted into mechanical energy through a steam power plant. Equipment in industrial production that has specific process functions and withstands a certain pressure is called a pressure vessel. Storage and transportation containers, reaction vessels, heat exchange vessels, and separation vessels are all pressure vessels. Boiler pressure vessel is the full name for both boilers and pressure vessels, as they are both special equipment and play a very important role in production and daily life.

[0003] Boiler pressure vessels need to be welded during production. The existing welding method has the following defects: it is not convenient to weld boiler pressure vessels of different heights; and welding needs to be performed around the boiler pressure vessel, which brings a lot of inconvenience to workers.

[0004] To this end, we propose a pressure vessel welding device. Utility Model Content

[0005] The purpose of the present utility model is to provide a pressure vessel welding device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure vessel welding device, comprising a base plate, a fixed base is provided on the top of the base plate, and a vertical frame located on both sides of the fixed base is fixedly installed on the top of the base plate, and a lifting motor is fixedly installed on the top of the vertical frame, the internal rotation of the vertical frame is connected with a threaded rod, and the threaded rod is threadedly connected to the lifting block, and the side of the lifting block is integrally connected with a lifting ring located in the middle of the vertical frame, the top of the lifting ring is fixedly installed with an annular slide rail, the bottom of the outer circumference of the annular slide rail is fixedly installed with an annular rack, the top of the annular slide rail is slidably connected with a movable block, an electric push rod is fixedly installed on the top of the movable block, and a movable motor is fixedly installed on the outer side surface of the movable block, a sliding gear is fixedly installed on the output end of the movable motor, the sliding gear is meshed with the annular rack, and the movable end of the electric push rod is fixedly installed with a welding gun.

[0007] Optionally, a sliding groove is opened on the opposite surface inside the vertical frame, the threaded rod is located inside the sliding groove, the lifting block is slidably connected to the inside of the sliding groove, and reinforcing rods are fixedly installed on the front and rear sides of the vertical frame, and the bottom of the reinforcing rod is fixedly installed on the top of the base plate.

[0008] Optionally, the bottom of the threaded rod is rotatably connected to the base plate, the output end of the lifting motor is fixedly installed on the top of one of the threaded rods, and the bottoms of the two threaded rods are fixedly installed with a synchronous wheel located below the base plate, and the two synchronous wheels are connected by a synchronous belt transmission.

[0009] Optionally, the inner diameter of the lifting ring is the same as the inner diameter of the annular slide rail, and the lifting ring, the annular slide rail and the fixed base are coaxially arranged.

[0010] Optionally, the telescopic direction of the movable end of the electric push rod is toward the center of the annular slide rail, and the direction of the welding gun is the same as that of the electric push rod.

[0011] Optionally, grooves are provided on the outer circumferential surface and the inner circumferential surface of the annular slide rail, and protrusions are provided on both sides of the movable block for sliding engagement with the grooves of the annular slide rail.

[0012] Optionally, the two lifting blocks are symmetrically arranged on both sides of the lifting ring, and the bottom of the lifting ring is flush with the bottom of the lifting blocks.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The pressure vessel welding device is configured with a stand and a lifting block, and the container to be welded is placed on a fixed base for fixing. The lifting motor drives a threaded rod to rotate, and synchronously drives another threaded rod to rotate at the same time through a synchronous wheel and a synchronous belt, so that the lifting ring and the annular slide rail are adjusted to the height required for welding. The electric push rod pushes the welding gun to the weld seam, and the movable motor drives the sliding gear to rotate, thereby driving the movable block to move along the annular slide rail to weld the annular weld of the container. It can be used to weld boiler bodies of different heights, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a pressure vessel welding device of the utility model;

[0016] Figure 2 This is a structural schematic diagram of a threaded rod of a pressure vessel welding device of the present utility model;

[0017] Figure 3 This is a structural schematic diagram of a lifting ring of a pressure vessel welding device of the utility model;

[0018] Figure 4This is a structural schematic diagram of a movable block of a pressure vessel welding device of the present utility model.

[0019] In the figure: 1. Base plate; 2. Fixed base; 3. Stand; 4. Lifting motor; 5. Threaded rod; 6. Lifting block; 7. Lifting ring; 8. Annular slide rail; 9. Annular rack; 10. Movable block; 11. Electric push rod; 12. Movable motor; 13. Sliding gear; 14. Welding gun; 15. Reinforcement rod; 16. Synchronous pulley; 17. Synchronous belt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 4 The utility model provides a pressure vessel welding device, including a base plate 1, a fixed base 2 is provided on the top of the base plate 1, a stand 3 located on both sides of the fixed base 2 is fixedly installed on the top of the base plate 1, a lifting motor 4 is fixedly installed on the top of the stand 3, a threaded rod 5 is rotatably connected to the inside of the stand 3, a lifting block 6 is threadedly connected to the threaded rod 5, a lifting ring 7 located in the middle of the stand 3 is integrally connected to the side of the lifting block 6, an annular slide rail 8 is fixedly installed on the top of the lifting ring 7, an annular rack 9 is fixedly installed on the bottom of the outer circumference of the annular slide rail 8, a movable block 10 is slidably connected to the top of the annular slide rail 8, an electric push rod 11 is fixedly installed on the top of the movable block 10, a movable motor 12 is fixedly installed on the outer side of the movable block 10, and the output of the movable motor 12 A sliding gear 13 is fixedly installed at the output end, and the sliding gear 13 is engaged with the annular rack 9. A welding gun 14 is fixedly installed at the movable end of the electric push rod 11. By setting a stand 3 and a lifting block 6, the container to be welded is placed on the fixed base 2 for fixation. The lifting motor 4 drives a threaded rod 5 to rotate, and drives another threaded rod 5 to rotate at the same time through the synchronous wheel 16 and the synchronous belt 17, so that the lifting ring 7 and the annular slide rail 8 are adjusted to the height required for welding. The electric push rod 11 pushes the welding gun 14 to the weld seam, and the movable motor 12 drives the sliding gear 13 to rotate, thereby driving the movable block 10 to move along the annular slide rail 8 to weld the annular weld of the container. It can be used to weld boiler bodies of different heights and has a wide range of applications.

[0022] A sliding groove is opened on the opposite surface of the interior of the stand 3, the threaded rod 5 is located inside the sliding groove, the lifting block 6 is slidably connected to the inside of the sliding groove, and the front and rear sides of the stand 3 are fixedly installed with a reinforcing rod 15, and the bottom of the reinforcing rod 15 is fixedly installed with the top of the base plate 1.

[0023] The bottom of the threaded rod 5 is rotatably connected to the base plate 1, the output end of the lifting motor 4 is fixedly installed on the top of one threaded rod 5, and the bottom of the two threaded rods 5 is fixedly installed with a synchronous wheel 16 located below the base plate 1, and the two synchronous wheels 16 are connected through a synchronous belt 17.

[0024] The inner diameter of the lifting ring 7 is the same as the inner diameter of the annular slide rail 8. The lifting ring 7, the annular slide rail 8 and the fixed base 2 are coaxially arranged. Grooves are provided on the outer and inner surfaces of the annular slide rail 8. Both sides of the movable block 10 are provided with protrusions that slide and engage with the grooves of the annular slide rail 8. The two lifting blocks 6 are symmetrically arranged on both sides of the lifting ring 7, and the bottom of the lifting ring 7 is flush with the bottom of the lifting block 6.

[0025] The telescopic direction of the movable end of the electric push rod 11 is toward the center of the annular slide rail 8 , and the direction of the welding gun 14 is the same as that of the electric push rod 11 .

[0026] Working principle:

[0027] The container to be welded is placed on the fixed base 2 for fixing. The lifting motor 4 drives a threaded rod 5 to rotate, and the synchronous wheel 16 and the synchronous belt 17 drive another threaded rod 5 to rotate at the same time, so that the lifting ring 7 and the annular slide rail 8 are adjusted to the height required for welding. The electric push rod 11 pushes the welding gun 14 to the weld seam. The movable motor 12 drives the sliding gear 13 to rotate, and then drives the movable block 10 to move along the annular slide rail 8 to weld the annular weld of the container. Boiler bodies of different heights can be welded.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure vessel welding device, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is provided with a fixed base (2), the top of the bottom plate (1) is fixedly installed with a stand (3) located on both sides of the fixed base (2), the top of the stand (3) is fixedly installed with a lifting motor (4), the interior of the stand (3) is rotatably connected with a threaded rod (5), the threaded rod (5) is threadedly connected with a lifting block (6), the side of the lifting block (6) is integrally connected with a lifting ring (7) located in the middle of the stand (3), and the top of the lifting ring (7) is fixedly installed with an annular slide rail (8). An annular rack (9) is fixedly mounted on the bottom of the outer peripheral surface of the annular slide rail (8), a movable block (10) is slidably connected to the top of the annular slide rail (8), an electric push rod (11) is fixedly mounted on the top of the movable block (10), a movable motor (12) is fixedly mounted on the outer side surface of the movable block (10), a sliding gear (13) is fixedly mounted on the output end of the movable motor (12), the sliding gear (13) is meshed with the annular rack (9), and a welding gun (14) is fixedly mounted on the movable end of the electric push rod (11).

2. A pressure vessel welding device according to claim 1, characterized in that: A slide groove is provided on opposite surfaces of the interior of the stand (3), the threaded rod (5) is located inside the slide groove, the lifting block (6) is slidably connected to the interior of the slide groove, and reinforcing rods (15) are fixedly installed on the front and rear sides of the stand (3), and the bottom of the reinforcing rod (15) is fixedly installed on the top of the base plate (1).

3. A pressure vessel welding device according to claim 1, characterized in that: The bottom of the threaded rod (5) is rotatably connected to the base plate (1), the output end of the lifting motor (4) is fixedly mounted on the top of one of the threaded rods (5), and a synchronous wheel (16) located below the base plate (1) is fixedly mounted on the bottom of the two threaded rods (5), and the two synchronous wheels (16) are connected by a synchronous belt (17).

4. A pressure vessel welding device according to claim 1, characterized in that: The inner diameter of the lifting ring (7) is the same as the inner diameter of the annular slide rail (8), and the lifting ring (7), the annular slide rail (8) and the fixed base (2) are coaxially arranged.

5. The pressure vessel welding device according to claim 1, characterized in that: The telescopic direction of the movable end of the electric push rod (11) is toward the center of the annular slide rail (8), and the orientation of the welding gun (14) is the same as that of the electric push rod (11).

6. A pressure vessel welding device according to claim 1, characterized in that: The outer circumferential surface and the inner circumferential surface of the annular slide rail (8) are provided with grooves, and protrusions that are slidably engaged with the grooves of the annular slide rail (8) are provided on both sides of the movable block (10).

7. A pressure vessel welding device according to claim 1, characterized in that: The two lifting blocks (6) are symmetrically arranged on both sides of the lifting ring (7), and the bottom of the lifting ring (7) is flush with the bottom of the lifting blocks (6).

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