Full penetration welding structure of L-shaped oil nozzle of marine oil cylinder

Abstract

The utility model belongs to the technical field of welding of oil cylinders and L-shaped oil nozzles, and particularly relates to a full penetration welding structure of an L-shaped oil nozzle of a marine oil cylinder, which comprises an oil cylinder, a connecting hole is arranged on the oil cylinder, a fixing component is clamped on the oil cylinder, an adjusting component is mounted on the fixing component, the adjusting component comprises a mounting seat, a lifting groove is arranged in the mounting seat, and the L-shaped oil nozzle is arranged in the lifting groove. A clamping assembly is installed on the lifting rod, a connecting pipe on an L-shaped oil nozzle is located in a connecting hole of the oil cylinder, part of the root of the L-shaped oil nozzle makes contact with the outer wall of the oil cylinder, then a U-shaped plate drives the L-shaped oil nozzle clamped on the U-shaped plate to integrally and vertically move upwards, and the gap between the root of the L-shaped oil nozzle and the outer wall of the oil cylinder is enlarged. And then a circle of welding ring is welded between the root of the L-shaped oil nozzle and the outer wall of the oil cylinder, so that the welding of the L-shaped oil nozzle and the oil cylinder is realized, the gap between the root of the L-shaped oil nozzle and the oil cylinder can be stably adjusted, the condition of incomplete penetration is avoided, and the full penetration of the welding structure is favorably improved.

Description

Technical Field

[0001] This utility model relates to the field of welding technology for hydraulic cylinders and L-shaped nozzles, specifically a fully penetrated welding structure for an L-shaped nozzle of a marine hydraulic cylinder. Background Technology

[0002] L-shaped nozzles are typically made of forged steel or high-strength stainless steel. They achieve oil circuit reversal through a 90° bend. To facilitate the connection of oil pipelines, marine cylinders are welded with L-shaped nozzles. The connection between the L-shaped nozzle and the marine cylinder is a welded structure.

[0003] A Chinese patent with authorization announcement number CN 217842187 U discloses a fully penetrated welded structure for an L-shaped oil nozzle of a marine hydraulic cylinder, including a cylinder barrel. An oil hole is machined on the cylinder wall, and one end of an L-shaped oil nozzle is fully penetrated welded to the oil hole. An interface coaxial with and connected to the oil hole is machined on the L-shaped oil nozzle. A thread is machined in the interface and a bolt plug is connected to the thread. By setting the interface on the L-shaped oil nozzle, when the welding material penetrates into the L-shaped oil nozzle, a drill bit can be used to reach into the L-shaped oil nozzle through the interface to remove the weld scar.

[0004] In the existing welding structure of marine hydraulic cylinders and L-shaped nozzles, the gap between the root of the L-shaped nozzle and the hydraulic cylinder cannot be controlled during the welding process. The smaller gap makes it easy for incomplete penetration to occur, resulting in poor full penetration of the welded structure. Therefore, a full penetration welding structure for L-shaped nozzles of marine hydraulic cylinders is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems existing in the existing technology, this utility model proposes a fully penetrated welding structure for an L-shaped oil nozzle of a marine hydraulic cylinder.

[0006] The technical solution adopted by this utility model to solve its technical problem is a fully penetrated welded structure for an L-shaped nozzle of a marine hydraulic cylinder, including a hydraulic cylinder with a connecting hole. A connecting pipe is placed in the connecting hole, and an L-shaped nozzle is fixedly connected to the connecting pipe. A welding ring is welded between the outer ring of the L-shaped nozzle and the hydraulic cylinder. A fixing component is clamped on the hydraulic cylinder, and an adjusting component is installed on the fixing component. The adjusting component includes a mounting base, and a lifting groove is formed in the mounting base. A first lead screw is rotatably installed on the inner wall of the lifting groove. A first damping wheel is installed on the top side of the first lead screw and is in contact with the top side of the mounting base. A lifting block is assembled in the lifting groove. A lifting rod is installed on the block, and a clamping assembly is installed on the lifting rod. The clamping assembly includes a U-shaped plate, which is fixedly connected to the lifting rod. The connecting pipe on the L-shaped nozzle is located in the inlet hole of the oil cylinder, and part of the root of the L-shaped nozzle is in contact with the outer wall of the oil cylinder. Then, the U-shaped plate drives the L-shaped nozzle clamped on it to move vertically upward, thereby increasing the gap between the root of the L-shaped nozzle and the outer wall of the oil cylinder. Then, a welding ring is welded between the root of the L-shaped nozzle and the outer wall of the oil cylinder to complete the welding of the L-shaped nozzle to the oil cylinder. This structure can stably adjust the gap between the root of the L-shaped nozzle and the oil cylinder, avoid incomplete penetration, and help improve the full penetration of the welded structure.

[0007] Preferably, two threaded holes are symmetrically opened on the side wall of the U-shaped plate, and a screw is installed in the threaded hole. A knob is installed on the screw. The fixing component includes a fixing plate, and a moving groove is opened in the fixing plate. A moving block is installed in the moving groove. A second lead screw is rotatably installed on the inner wall of the moving groove. The thread direction of the second lead screw is symmetrical and opposite. A second damping wheel is installed at one end of the second lead screw. The second damping wheel is in contact with the side wall of the fixing plate. A moving plate is installed on the moving block. A clamping plate is installed on the moving plate. By clamping the L-shaped nozzle onto the U-shaped plate, and then the two screws clamp and fix the L-shaped nozzle, the L-shaped nozzle is fixed on the U-shaped plate. Then, the connecting pipe of the L-shaped nozzle is placed in the connecting hole. Then, the two moving plates drive the two clamping plates to move synchronously relative to each other. The two clamping plates clamp and fix the marine oil cylinder. At this time, the L-shaped nozzle is stably connected to the oil cylinder, realizing that the L-shaped nozzle is in a stable state, avoiding the L-shaped nozzle shaking during welding, ensuring the neatness of the welded structure, and improving the stability of the L-shaped nozzle.

[0008] The advantages of this utility model are:

[0009] 1. This utility model uses an L-shaped nozzle with a connecting pipe inside the cylinder's inlet. The root of the L-shaped nozzle is in contact with the outer wall of the cylinder. Then, a U-shaped plate moves the L-shaped nozzle held on it vertically upward, increasing the gap between the root of the L-shaped nozzle and the outer wall of the cylinder. Finally, a welding ring is welded between the root of the L-shaped nozzle and the outer wall of the cylinder to complete the welding between the L-shaped nozzle and the cylinder. This structure can stably adjust the gap between the root of the L-shaped nozzle and the cylinder, avoiding incomplete penetration and improving the full penetration of the welded structure.

[0010] 2. This utility model secures the L-shaped nozzle to the U-shaped plate by clamping it with two screws. Then, the nozzle's connector is placed in the connection hole, and two moving plates drive two clamping plates to move synchronously relative to each other, clamping and securing the marine hydraulic cylinder. At this point, the L-shaped nozzle is stably connected to the cylinder, ensuring its stability and preventing shaking during welding. This guarantees the neatness of the welded structure and improves the stability of the L-shaped nozzle. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a first-person perspective 3D structural diagram;

[0013] Figure 2 This is a three-dimensional structural diagram of the L-shaped nozzle.

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the weld ring.

[0015] Figure 4 A schematic diagram of the three-dimensional structure of the adjustment component;

[0016] Figure 5 This is a schematic diagram of the three-dimensional structure at the fixed component.

[0017] In the diagram: 1. Hydraulic cylinder; 2. Connecting hole; 3. Connecting pipe; 4. L-shaped oil nozzle; 5. Welding ring; 6. Mounting base; 7. Lifting groove; 8. First lead screw; 9. First damping wheel; 10. Lifting block; 11. Lifting rod; 12. U-shaped plate; 13. Screw; 14. Knob; 15. Fixing plate; 16. Moving groove; 17. Second lead screw; 18. Second damping wheel; 19. Moving block; 20. Moving plate; 21. Clamping plate. Detailed Implementation

[0018] 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 scope of protection of the present utility model.

[0019] Please see Figure 1-4 As shown, a fully penetrated welded structure for an L-shaped nozzle on a marine hydraulic cylinder includes a hydraulic cylinder 1. A connection hole 2 is provided on the hydraulic cylinder 1, and a connecting pipe 3 is placed inside the connection hole 2. An L-shaped nozzle 4 is fixedly connected to the connecting pipe 3. A welding ring 5 is welded between the outer ring of the L-shaped nozzle 4 and the hydraulic cylinder 1. A fixing assembly is clamped on the hydraulic cylinder 1, and an adjusting assembly is installed on the fixing assembly. The adjusting assembly includes a mounting base 6, and a lifting groove 7 is provided inside the mounting base 6. A first lead screw 8 is rotatably mounted on the inner wall of the lifting groove 7. A first damping wheel 9 is mounted on the top side of the first lead screw 8. 9 is attached to the top side of the mounting base 6. A lifting block 10 is installed inside the lifting groove 7. A lifting rod 11 is installed on the lifting block 10. A clamping assembly is installed on the lifting rod 11, including a U-shaped plate 12, which is fixedly connected to the lifting rod 11. During operation, the existing marine hydraulic cylinder 1 and L-shaped nozzle 4 welding structure suffers from poor weld penetration due to the inability to control the gap between the root of the L-shaped nozzle 4 and the hydraulic cylinder 1. Smaller gaps can lead to incomplete penetration, resulting in poor overall weld penetration. This is addressed by using two clamps... Plate 21 clamps and fixes the marine hydraulic cylinder 1, and the two screws 13 on U-shaped plate 12 clamp and fix the L-shaped nozzle 4, thus achieving a fixed connection between the L-shaped nozzle 4 and the hydraulic cylinder 1. At this time, the connecting pipe 3 on the L-shaped nozzle 4 is located inside the connecting hole 2 of the hydraulic cylinder 1, and part of the root of the L-shaped nozzle 4 is in contact with the outer wall of the hydraulic cylinder 1. Then, the first damping wheel 9 is rotated, which drives the first lead screw 8 to rotate. The first lead screw 8 drives the lifting block 10 on it to move vertically upward, and the lifting block 10 drives the lifting rod 11 to move vertically upward. The lifting rod 11 carries... The U-shaped plate 12 moves vertically upward, causing the L-shaped nozzle 4 held on it to move vertically upward as a whole. This adjusts the distance between the L-shaped nozzle 4 and the cylinder 1, increasing the gap between the root of the L-shaped nozzle 4 and the outer wall of the cylinder 1. Then, a welding ring 5 is welded between the root of the L-shaped nozzle 4 and the outer wall of the cylinder 1, completing the welding between the L-shaped nozzle 4 and the cylinder 1. This structure can stably adjust the gap between the root of the L-shaped nozzle 4 and the cylinder 1, avoiding incomplete penetration and improving the full penetration of the welded structure.

[0020] Please see Figure 5As shown, two threaded holes are symmetrically opened on the side wall of the U-shaped plate 12. A screw 13 is installed in the threaded hole, and a knob 14 is installed on the screw 13. The fixing assembly includes a fixing plate 15, a moving groove 16 is opened in the fixing plate 15, a moving block 19 is installed in the moving groove 16, and a second lead screw 17 is rotatably installed on the inner wall of the moving groove 16. The threads on the second lead screw 17 are symmetrically opposite. A second damping wheel 18 is installed at one end of the second lead screw 17. The second damping wheel 18 is in contact with the side wall of the fixing plate 15. A moving plate 20 is installed on the moving block 19, and a clamping plate 21 is installed on the moving plate 20. During operation, the existing marine oil cylinder 1 and L-shaped oil nozzle 4 are welded together. Due to the inability to stably fix the L-shaped oil nozzle 4, the stability of the L-shaped oil nozzle 4 is poor, affecting the neatness of the welded structure. By clamping the L-shaped oil nozzle 4 onto the U-shaped plate 12, then... Turning the two knobs 14 causes the screw 13 to rotate. During the rotation of the screw 13, it presses against the side wall of the L-shaped nozzle 4, thus clamping and fixing the L-shaped nozzle 4 onto the U-shaped plate 12. Then, the connecting pipe 3 of the L-shaped nozzle 4 is placed in the connecting hole 2. After that, the second damping wheel 18 is rotated, which drives the second lead screw 17, causing the two moving blocks 19 on it to move synchronously relative to each other. The two moving blocks 19 drive the two moving plates 20 to move synchronously relative to each other, and the two moving plates 20 drive the two clamping plates 21 to move synchronously relative to each other. The two clamping plates 21 clamp and fix the marine cylinder 1, thus fixing the fixed component. At this time, the L-shaped nozzle 4 is stably connected to the cylinder 1, ensuring that the L-shaped nozzle 4 is in a stable state. This prevents the L-shaped nozzle 4 from shaking during welding, ensures the neatness of the welded structure, and helps to improve the stability of the L-shaped nozzle 4.

[0021] Working principle: During the welding process of the existing marine hydraulic cylinder 1 and L-shaped nozzle 4, the L-shaped nozzle 4 cannot be stably fixed, resulting in poor stability and affecting the neatness of the welded structure. By clamping the L-shaped nozzle 4 onto the U-shaped plate 12, and then turning the two knobs 14, the screw 13 is driven to rotate. During the rotation of the screw 13, it abuts against the side wall of the L-shaped nozzle 4, thus clamping and fixing the L-shaped nozzle 4 onto the U-shaped plate 12. Then, the connecting pipe 3 of the L-shaped nozzle 4 is placed in the connecting hole 2, and then the second damping wheel is rotated. 18. This drives the second lead screw 17, causing the two moving blocks 19 on it to move synchronously relative to each other. The two moving blocks 19 drive the two moving plates 20 to move synchronously relative to each other. The two moving plates 20 drive the two clamping plates 21 to move synchronously relative to each other. The two clamping plates 21 clamp and fix the marine hydraulic cylinder 1, thus fixing the fixed component. At this time, the L-shaped nozzle 4 is stably connected to the hydraulic cylinder 1, ensuring that the L-shaped nozzle 4 is in a stable state, preventing the L-shaped nozzle 4 from shaking during welding, ensuring the neatness of the welded structure, and improving the stability of the L-shaped nozzle 4. The existing welding structure of the marine hydraulic cylinder 1 and the L-shaped nozzle 4 is being welded... During the process, due to the inability to control the gap between the root of the L-shaped nozzle 4 and the cylinder 1, the smaller gap is prone to incomplete penetration, resulting in poor full penetration of the welded structure. The marine cylinder 1 is clamped and fixed by two clamping plates 21, and the two screws 13 on the U-shaped plate 12 clamp and fix the L-shaped nozzle 4, thus achieving a fixed connection between the L-shaped nozzle 4 and the cylinder 1. At this time, the connecting pipe 3 on the L-shaped nozzle 4 is located inside the connecting hole 2 of the cylinder 1, while part of the root of the L-shaped nozzle 4 is in contact with the outer wall of the cylinder 1. Then, the first damping wheel 9 is rotated, driving the first lead screw 8 to rotate, which in turn drives the lifting block 10 on it. The lifting block 10 moves vertically upward, causing the lifting rod 11 to move vertically upward. The lifting rod 11 then causes the U-shaped plate 12 to move vertically upward, which in turn causes the L-shaped nozzle 4 held on it to move vertically upward as a whole. This adjusts the distance between the L-shaped nozzle 4 and the cylinder 1, increasing the gap between the root of the L-shaped nozzle 4 and the outer wall of the cylinder 1. Then, a welding ring 5 is welded between the root of the L-shaped nozzle 4 and the outer wall of the cylinder 1, thus completing the welding between the L-shaped nozzle 4 and the cylinder 1. This structure can stably adjust the gap between the root of the L-shaped nozzle 4 and the cylinder 1, avoiding incomplete penetration and improving the full penetration of the welded structure.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A full penetration welded structure of an L-shaped nozzle of a marine oil cylinder, characterized by: The utility model provides an adjustable oil cylinder, including oil cylinder (1), the oil cylinder (1) is opened with the interface hole (2), the interface hole (2) places the connecting pipe (3), the connecting pipe (3) is fixedly connected with L shape oil nozzle (4), the L shape oil nozzle (4) outer ring and oil cylinder (1) between welding has the welding ring (5), the oil cylinder (1) is clamped with fixed assembly, and fixed assembly is installed with adjusting assembly, and adjusting assembly includes mounting seat (6), the mounting seat (6) is opened with lifting groove (7) in, the first screw rod (8) is rotatably installed on the inner wall of lifting groove (7), the first damping wheel (9) is installed on the top side of first screw rod (8), the first damping wheel (9) is attached with the top side of mounting seat (6), lifting block (10) is assembled in lifting groove (7), lifting rod (11) is installed on lifting block (10), clamping assembly is installed on lifting rod (11), and clamping assembly includes U type board (12), and U type board (12) is fixedly connected with lifting rod (11).

2. A full penetration welded structure of L-shaped nozzle of marine oil cylinder according to claim 1, characterized in that: Two screw holes are symmetrically formed in the side wall of the U-shaped plate (12), and a screw rod (13) is assembled in the screw hole.

3. A full penetration welded structure of L-shaped nozzle of marine oil cylinder according to claim 1, characterized in that: The fixed assembly includes a fixed plate (15), and a moving groove (16) is formed in the fixed plate (15).

4. A full penetration welded structure of L-shaped nozzle of marine oil cylinder according to claim 3, characterized in that: A second screw rod (17) is rotatably installed on the inner wall of the moving groove (16), and the screw thread directions of the second screw rod (17) are symmetrically opposite.

5. A full penetration welded structure of L-shaped nozzle of marine oil cylinder according to claim 4, characterized in that: A second damping wheel (18) is installed at one end of the second screw rod (17), and the second damping wheel (18) is attached to the side wall of the fixed plate (15).

6. A full penetration welded structure of L-shaped nozzle of marine oil cylinder according to claim 3, characterized in that: A moving plate (20) is installed on the moving block (19), and a clamping plate (21) is installed on the moving plate (20).

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