A welding device for parts of a pressure vessel

Abstract

The utility model relates to the technical fields of welding device especially is concerned on a kind of parts welding device of pressure vessel manufacturing, it is set up the mobile roller structure that can be supported roll lifting, it is convenient to carry out longitudinal activity, improve practicality;Including chassis, support axle bracket, support roller shaft and support roller, the left and right sides of the top of chassis are respectively movably provided with a group of support axle bracket by adjusting mechanism, the inside upper side of each group of support axle bracket is respectively rotatably provided with a group of support roller shaft, support roller shaft outer wall is connected with support roller inner wall, further include reciprocating motor, threaded rod, movable frame, guide sleeve, longitudinal moving axle bracket, longitudinal moving roller shaft, longitudinal moving roller and internal thread sleeve, reciprocating motor output end is connected with threaded rod top end, guide sleeve inner wall is slidably connected with movable frame same side outer wall, two groups of movable frame top end are connected with longitudinal moving axle bracket bottom end left and right sides, longitudinal moving axle bracket front and back side inside is rotatably provided with a group of longitudinal moving roller shaft, longitudinal moving roller shaft outer wall is connected with longitudinal moving roller inner wall.

Description

Technical Field

[0001] This utility model relates to the technical field of welding devices, specifically a welding device for components used in the manufacture of pressure vessels. Background Technology

[0002] A pressure vessel (yā lì róng qì) is a closed device that holds gas or liquid under pressure.

[0003] During its production process, production personnel need to perform corresponding welding processes to achieve the fixed connection of some components. For example, a pressure vessel welding device with patent publication number CN219900916U is described. After placing the pressure vessel on two support rollers, the second screw is rotated via a second handwheel to drive the pressure rollers to press against the top of the pressure vessel. This provides a three-point positioning clamping along the axial direction of the pressure vessel, ensuring the coaxiality of the two sections to be welded. Then, the reduction motor is started, and the friction between the pressure rollers and the pressure vessel's contact surface drives the pressure vessel to rotate. Because the height of the pressure rollers is adjustable, this device can adapt to circumferential welding of pressure vessels with various outer diameters, and its performance is excellent.

[0004] However, the device is not practical because the longitudinal movement of the pressure vessel is inconvenient due to friction. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a welding device for pressure vessel manufacturing components, which features a movable roller structure that can be raised and lowered relative to the support roller, facilitating longitudinal movement and improving practicality.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a welding device for components in pressure vessel manufacturing, comprising a base frame, a support shaft frame, a support roller shaft, and a support roller. A set of support shaft frames is movably mounted on the left and right sides of the top of the base frame via an adjustment mechanism. A set of support roller shafts is rotatably mounted on the upper middle side of each set of support shaft frames. The outer wall of the support roller shaft is connected to the inner wall of the support roller. The device also includes a reciprocating motor, a threaded rod, a movable frame, a guide sleeve, a longitudinal transfer shaft frame, a longitudinal transfer roller shaft, a longitudinal transfer roller, and an internal threaded sleeve. The bottom middle of the base frame is connected to the top of the reciprocating motor, the output end of the reciprocating motor is connected to the top of the threaded rod, the inner side of the bottom of the movable frame is connected to the outer side of the internal threaded sleeve, the inner wall of the internal threaded sleeve is screwed to the outer wall of the threaded rod, a set of guide sleeves is connected to the inner side of the left and right sides of the base frame respectively, the inner wall of the guide sleeve is slidably connected to the outer wall of the movable frame on the same side, the top of the two sets of movable frames is connected to the left and right sides of the bottom of the longitudinal transfer shaft frame, and a set of longitudinal transfer rollers is rotatably installed on the front and rear sides of the longitudinal transfer shaft frame respectively, the outer wall of the longitudinal transfer rollers is connected to the inner wall of the longitudinal transfer rollers.

[0009] Preferably, the adjustment mechanism includes a connecting plate, a guide bar, a sliding sleeve, a tightening screw sleeve, a tightening screw, and a tightening handle. The middle parts of the left and right sides of the top of the base frame are respectively connected to the bottom side of a set of connecting plates. The middle parts of the inner side of each set of connecting plates are respectively connected to the outer end of a set of guide bars. The inner side of the lower part of the support shaft frame is connected to the outer side of the sliding sleeve. The inner wall of the sliding sleeve is slidably connected to the outer wall of the guide bar. The upper middle part of the outer side of each set of sliding sleeves is respectively connected to the bottom side of a set of tightening screw sleeves. The inner wall of the tightening screw sleeve is screwed to the outer wall of the tightening screw. The top of the tightening screw is connected to the middle part of the bottom side of the tightening handle.

[0010] Preferably, each set of longitudinal transfer rollers is concave.

[0011] Preferably, it also includes a limiting piece, wherein the bottom end of the threaded rod is connected to the middle of the top side of the limiting piece.

[0012] Preferably, it also includes an oil injection nozzle, wherein the lower middle part of the front side of the internal threaded sleeve is connected to the inner side of the oil injection nozzle.

[0013] Preferably, it also includes an oil filling cap, wherein the outer side of the oil filling nozzle and the inner side of the oil filling cap are detachably installed.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a welding device for components in the manufacture of pressure vessels, which has the following advantages:

[0016] The two sets of support shaft frames are adjusted to fit the containers to be welded at the appropriate distance. When the longitudinal transfer shaft frame is at the low position of the top of the base frame, the containers to be welded can be placed on top of the two sets of support rollers. The support roller shafts inside the two sets of support shaft frames rotate synchronously, and the container components are constrained by the support rollers, which facilitates comprehensive welding. When longitudinal movement is required, the reciprocating motor runs, causing the threaded rod to rotate. The threaded rod engages with the internal threaded sleeve, causing the internal threaded sleeve to slide upward under the constraint of the corresponding guide sleeve. This causes the longitudinal transfer shaft frame to move upward, lifting the two sets of longitudinal transfer rollers until they contact the bottom side of the container components, thus freeing them from the support of the two sets of support rollers. Then, the longitudinal transfer rollers can be rotated synchronously by the two sets of longitudinal transfer roller shafts to achieve longitudinal auxiliary movement. A movable roller structure that can be raised and lowered relative to the support rollers is set up to facilitate longitudinal movement and improve practicality. Attached Figure Description

[0017] Figure 1 This is an axial view illustrating the structure of this utility model.

[0018] Figure 2 This utility model Figure 1 The left view;

[0019] Figure 3 This utility model Figure 1 Front view;

[0020] Figure 4 This utility model Figure 2 A magnified view of A.

[0021] The following are labels in the attached diagram: 1. Base frame; 2. Support shaft frame; 3. Support roller shaft; 4. Support roller; 5. Reciprocating motor; 6. Threaded rod; 7. Movable frame; 8. Guide sleeve; 9. Longitudinal shaft frame; 10. Longitudinal roller shaft; 11. Longitudinal roller; 12. Internal threaded sleeve; 13. Connecting plate; 14. Guide bar; 15. Sliding sleeve; 16. Tightening screw sleeve; 17. Tightening screw; 18. Tightening handle; 19. Limiting plate; 20. Oil injection nozzle; 21. Oil injection cap. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0023] Please see Figure 1-4A welding device for components in pressure vessel manufacturing includes a base frame 1, support shaft frames 2, support roller shafts 3, and support rollers 4. A set of support shaft frames 2 are movably mounted on the left and right sides of the top of the base frame 1 via an adjustment mechanism. A set of support roller shafts 3 are rotatably mounted on the upper side of the interior of each set of support shaft frames 2. The outer wall of the support roller shaft 3 is connected to the inner wall of the support roller 4. The device also includes a reciprocating motor 5, a threaded rod 6, a movable frame 7, guide sleeves 8, a longitudinal shift shaft frame 9, a longitudinal shift roller shaft 10, a longitudinal shift roller 11, and an internal threaded sleeve 12. The bottom middle of the base frame 1 is connected to the top of the reciprocating motor 5, and the output end of the reciprocating motor 5 is connected to the top of the threaded rod 6. The bottom inner side of the movable frame 7 is connected to the outer side of the internal threaded sleeve 12, and the inner wall of the internal threaded sleeve 12 is screwed to the outer wall of the threaded rod 6. A set of guide sleeves 8 are connected to the interior of the left and right sides of the base frame 1, and the inner wall of the guide sleeves 8 is slidably connected to the outer wall of the movable frame 7 on the same side. The tops of the two sets of movable frames 7 are connected to the bottom left side of the longitudinal shift shaft frame 9. Connected to the right side, a set of longitudinal transfer rollers 10 are rotatably installed on the front and rear sides of the longitudinal transfer shaft frame 9. The outer wall of the longitudinal transfer rollers 10 is connected to the inner wall of the longitudinal transfer rollers 11. The two sets of support shaft frames 2 are adjusted to fit the containers to be welded at the corresponding distance. When the longitudinal transfer shaft frame 9 is at the low position of the top of the base frame 1, the containers to be welded can be placed on the top of the two sets of support rollers 4. The support rollers 3 inside the two sets of support shaft frames 2 rotate synchronously, and the container parts are constrained by the support rollers 4, which facilitates comprehensive welding. When longitudinal movement is required, the reciprocating motor 5 runs, causing the threaded rod 6 to rotate. The threaded rod 6 is screwed into the inner threaded sleeve 12, which causes the inner threaded sleeve 12 to slide upward under the constraint of the corresponding guide sleeve 8. This connects to the longitudinal transfer shaft frame 9 moving upward, lifting the two sets of longitudinal transfer rollers 11 until they contact the bottom side of the container parts, so that they are freed from the support of the two sets of support rollers 4. Then, the longitudinal transfer rollers 11 can be rotated synchronously by the two sets of longitudinal transfer rollers 10, realizing longitudinal auxiliary movement.

[0024] The adjusting mechanism includes a connecting plate 13, a guide bar 14, a sliding sleeve 15, a tightening screw 16, a tightening screw 17, and a tightening handle 18. The middle parts of the left and right sides of the top of the base frame 1 are respectively connected to the bottom side of a set of connecting plates 13. The middle parts of the inner side of each set of connecting plates 13 are respectively connected to the outer end of a set of guide bars 14. The inner side of the lower part of the support shaft frame 2 is connected to the outer side of the sliding sleeve 15. The inner wall of the sliding sleeve 15 is slidably connected to the outer wall of the guide bar 14. The upper middle part of the outer side of each set of sliding sleeves 15 is respectively connected to the bottom side of a set of tightening screws 16. The inner wall of the tightening screw 16 is connected to the bottom side of the guide bar 16. The outer wall of the tightening screw 17 is screwed together, and the top of the tightening screw 17 is connected to the middle of the bottom side of the tightening handle 18. With the connecting plate 13 fixing the guide bar 14, the support shaft frame 2 can slide laterally on the outside of the guide bar 14 via the sliding sleeve 15, thereby adjusting the lateral position of the support shaft frame 2 to adapt to the actual container component to be supported. After it is in place, the tightening handle 18 is turned to make the tightening screw 17 rotate. The tightening screw 17 is screwed together with the tightening screw sleeve 16 and acts inward to tighten the outer side of the guide bar 14 at that position, so that the position of the support shaft frame 2 is fixed.

[0025] Each set of longitudinal transfer rollers 11 is concave; by setting the concave shape of the longitudinal transfer rollers 11, the container components can be kept from moving outward to the sides during longitudinal movement, thus improving reliability.

[0026] It also includes a limiting piece 19, with the bottom end of the threaded rod 6 connected to the middle of the top side of the limiting piece 19; the limiting piece 19 can limit the bottom of the threaded rod 6, preventing the inner threaded sleeve 12 from coming off downward outside the threaded rod 6, thus improving reliability.

[0027] It also includes an oil injection nozzle 20, with the lower middle part of the front side of the internal threaded sleeve 12 connected to the inner side of the oil injection nozzle 20; oil can be injected into the inner wall of the internal threaded sleeve 12 through the oil injection nozzle 20 for convenient lubrication and maintenance.

[0028] It also includes an oil filling cap 21, and the outer side of the oil filling nozzle 20 and the inner side of the oil filling cap 21 can be detachably installed; after the oil filling cap 21 is installed on the outer side of the oil filling nozzle 20, the inside of the oil filling nozzle 20 can be sealed and protected, improving reliability.

[0029] In summary, when using a welding device for pressure vessel manufacturing components, with the connecting plate 13 fixing the guide bar 14, the support shaft frame 2 can slide laterally on the outside of the guide bar 14 via the sliding sleeve 15, thereby adjusting the lateral position of the support shaft frame 2 to adapt to the actual container component to be supported. After it is in place, the tightening handle 18 is turned to rotate the tightening screw 17. The tightening screw 17, through its screw engagement with the tightening sleeve 16, acts inwardly to tighten the outer side of the guide bar 14 at that position, fixing the position of the support shaft frame 2. This adjusts the two sets of support shaft frames 2 to be adapted to the corresponding distance of the container to be welded. When the longitudinal movement shaft frame 9 is at the low position of the top of the base frame 1, the container to be welded can be placed on top of the two sets of support rollers 4. The support roller shafts 3 inside the two sets of support shaft frames 2 rotate synchronously, and the support rollers 4 constrain the movement of the container component, facilitating comprehensive welding. When longitudinal movement is required, The reciprocating motor 5 runs, causing the threaded rod 6 to rotate. The threaded rod 6 is screwed into the inner threaded sleeve 12, causing the inner threaded sleeve 12 to slide upward under the constraint of the corresponding guide sleeve 8. This causes the connecting longitudinal shaft frame 9 to move upward, lifting the two sets of longitudinal rollers 11 until they contact the bottom side of the container component, thus freeing it from the support of the two sets of support rollers 4. Then, the longitudinal rollers 11 can be synchronously constrained by the two sets of longitudinal roller shafts 10 to achieve longitudinal auxiliary movement. By setting the concave shape of the longitudinal rollers 11, the container component can be kept from moving outward to both sides during longitudinal movement. In addition, the bottom of the threaded rod 6 can be limited by the limiting piece 19 to prevent the inner threaded sleeve 12 from coming off downward outside the threaded rod 6. Oil can be injected into the inner wall of the inner threaded sleeve 12 through the oil injection nozzle 20 for convenient lubrication and maintenance. After installing the oil injection cap 21 on the outside of the oil injection nozzle 20, the inside of the oil injection nozzle 20 can be sealed and protected.

[0030] The reciprocating motor 5 is a commercially available device known to those skilled in the art. We are simply using it here without making any structural or functional improvements, and we will not go into detail about it here.

[0031] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding device for components in the manufacture of pressure vessels, comprising a base frame (1), a support shaft frame (2), a support roller shaft (3), and a support roller (4), wherein a set of support shaft frames (2) are movably arranged on the left and right sides of the top of the base frame (1) via an adjustment mechanism, and a set of support roller shafts (3) are rotatably arranged on the upper side of the interior of each set of support shaft frames (2), the outer wall of the support roller shaft (3) being connected to the inner wall of the support roller (4), characterized in that, It also includes a reciprocating motor (5), a threaded rod (6), a movable frame (7), a guide sleeve (8), a longitudinal shifting shaft frame (9), a longitudinal shifting roller shaft (10), a longitudinal shifting roller (11), and an internal threaded sleeve (12). The bottom middle of the base frame (1) is connected to the top of the reciprocating motor (5), the output end of the reciprocating motor (5) is connected to the top of the threaded rod (6), the inner side of the bottom of the movable frame (7) is connected to the outer side of the internal threaded sleeve (12), the inner wall of the internal threaded sleeve (12) is screwed to the outer wall of the threaded rod (6), a set of guide sleeves (8) are connected to the inner side of the left and right sides of the base frame (1), the inner wall of the guide sleeve (8) is slidably connected to the outer wall of the movable frame (7) on the same side, the top of the two sets of movable frames (7) is connected to the left and right sides of the bottom of the longitudinal shifting shaft frame (9), a set of longitudinal shifting roller shafts (10) are rotatably installed in the inner side of the front and rear sides of the longitudinal shifting shaft frame (9), and the outer wall of the longitudinal shifting roller shaft (10) is connected to the inner wall of the longitudinal shifting roller (11).

2. The welding device for components in the manufacture of pressure vessels according to claim 1, characterized in that: The adjustment mechanism includes a connecting plate (13), a guide bar (14), a sliding sleeve (15), a tightening screw sleeve (16), a tightening screw (17), and a tightening handle (18). The middle part of the top left and right sides of the base frame (1) is connected to the bottom side of a set of connecting plates (13), and the middle part of the inner side of each set of connecting plates (13) is connected to the outer end of a set of guide bars (14). The inner side of the lower middle part of the support shaft frame (2) is connected to the outer side of the sliding sleeve (15). The inner wall of the sliding sleeve (15) is slidably connected to the outer wall of the guide bar (14). The upper middle part of the outer side of each set of sliding sleeves (15) is connected to the bottom side of a set of tightening screw sleeves (16), and the inner wall of the tightening screw sleeve (16) is screwed to the outer wall of the tightening screw (17). The top of the tightening screw (17) is connected to the middle part of the bottom side of the tightening handle (18).

3. The welding device for components in pressure vessel manufacturing according to claim 1, characterized in that: Each set of longitudinal transfer rollers (11) is concave.

4. The welding device for components in the manufacture of pressure vessels according to claim 1, characterized in that: It also includes a limiting piece (19), the bottom end of the threaded rod (6) is connected to the middle of the top side of the limiting piece (19).

5. The welding device for components in the manufacture of pressure vessels according to claim 1, characterized in that: It also includes an oil injection nozzle (20), the lower front part of the internal threaded sleeve (12) is connected to the inner side of the oil injection nozzle (20).

6. The welding apparatus for components in the manufacture of pressure vessels according to claim 5, characterized in that: It also includes an oil filling cap (21), the outer side of the oil filling nozzle (20) and the inner side of the oil filling cap (21) can be detachably installed.

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