High-pressure pipe fitting flaring device and flaring process for ship

Abstract

The invention provides a high-pressure pipe fitting flaring device for ships and a flaring process, and relates to the technical field of high-pressure pipe fitting machining.The flaring device comprises a base, a clamping mechanism and a flaring mechanism are arranged on the base, the clamping mechanism is used for clamping a pipe fitting body, and the flaring mechanism is arranged on one side of the clamping mechanism; the flaring mechanism comprises a moving seat, a flaring cone and an oil injection assembly, a mounting hole is formed in the moving seat, the flaring cone is arranged in the center of the mounting hole, the oil injection assembly is arranged in the mounting hole and used for injecting lubricating oil to the side face of the flaring cone, a connecting box is arranged on the side, away from the clamping mechanism, of the moving seat, and a driving mechanism is arranged on the side, away from the moving seat, of the connecting box. According to the flaring cone, the oil spraying assembly is arranged on the outer side of the flaring cone, lubricating oil is evenly sprayed on the outer wall of the flaring cone through the oil spraying assembly, a lubricating film is formed between the flaring cone and the pipe fitting body, friction between the flaring cone and the pipe fitting body can be effectively reduced, the abrasion rate of the flaring cone is remarkably decreased, and the service life of the flaring cone is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of high-pressure pipe processing, and in particular to a high-pressure pipe expanding device for ships and a expanding process. Background Art

[0002] During shipbuilding and operation, high-pressure pipe fittings are a key component of a vessel's high-pressure piping system. The quality of their connections directly impacts the safety and reliability of key systems like the hydraulic system and fuel delivery system. Ships' high-pressure piping systems must withstand high pressure, vibration, and the complex marine environment for extended periods of time. Therefore, they place extremely high demands on the connection strength and sealing properties of these fittings. High-pressure pipe fittings for ships can be connected using flared pipe fittings. This process requires flaring of the pipe fittings before connection, and the quality of the flaring is a key factor in determining the connection's effectiveness.

[0003] The Chinese patent with authorization announcement number CN118616593B discloses a steel pipe expanding device and a method of use, which belongs to the technical field of steel pipe expanding. The present invention sets a first screw, a second screw and a third screw, and the pitch of the threads of the first screw, the second screw and the third screw gradually increases, so that the movement speed of the first top cone, the second top cone and the third top cone gradually slows down, so that the inner top cone can enter the inside of the steel pipe for positioning in advance, and the outer top cone expands the steel pipe, so that positioning and expanding can be carried out simultaneously, thereby improving the positioning and expanding efficiency of the device. By setting a third flat gear and a second flat gear, the first top cone, the second top cone and the third top cone can rotate while moving, making the expanding more stable and convenient, improving the stability of the device, and solving the problem that the top cone and the axis of the steel pipe of the steel pipe expanding device are difficult to accurately position, resulting in reduced expanding efficiency and accuracy.

[0004] However, during the flaring operation, the outer top cone surface of the flaring device and the inner wall of the steel pipe produce severe friction, resulting in rapid wear of the top cone surface, thereby shortening the service life of the top cone. Summary of the Invention

[0005] The present invention provides a high-pressure pipe expanding device for ships and a expanding process, which are used to solve the technical problem that the outer top cone surface of the current expanding device generates severe friction with the inner wall of the steel pipe, resulting in rapid wear of the top cone surface and thus shortening the service life of the top cone.

[0006] In order to solve the above technical problems, the present invention discloses a high-pressure pipe expanding device for ships, comprising: a base, a clamping mechanism and a expanding mechanism are arranged on the base, the clamping mechanism is used to clamp the pipe body, the expanding mechanism is arranged on one side of the clamping mechanism, the expanding mechanism includes a movable seat, an expanding cone and an oil spraying assembly, a mounting hole is arranged in the movable seat, an expanding cone is arranged in the center of the mounting hole, an oil spraying assembly is arranged in the mounting hole, the oil spraying assembly is used to spray lubricating oil onto the side of the expanding cone, a connecting box is arranged on the side of the movable seat away from the clamping mechanism, and a driving mechanism is arranged on the side of the connecting box away from the movable seat.

[0007] Preferably, the clamping mechanism includes several support blocks, a groove is provided on the upper surface of the support block, the groove is used to place the pipe body, a pressure plate is provided above the support block, the lower surface of the pressure plate is adapted to the outer wall of the pipe body, the upper end of the pressure plate is connected to the output end of the first electric push rod, the first electric push rod is set on the mounting frame, and the mounting frame is set on the base.

[0008] Preferably, a baffle is provided on a side of the base away from the driving mechanism.

[0009] Preferably, the driving mechanism includes a second electric push rod, the second electric push rod is arranged on the base, and the output end of the second electric push rod is connected to the connection box.

[0010] Preferably, the oil injection assembly includes a sliding block, which is arranged on the side of the mounting hole close to the connecting box, the front side of the sliding block is connected to the output end of the third electric push rod, the third electric push rod is arranged on the outer wall of the moving seat, and a diverter pipe is arranged on the side of the sliding block away from the connecting box. The diverter pipe is arranged along the busbar direction of the flaring cone, and a plurality of nozzles are arranged on the side of the diverter pipe close to the flaring cone. One end of the diverter pipe is connected to the output end of the first pump body through the oil supply pipe, the input end of the first pump body is connected to the oil tank, and the first pump body and the oil tank are arranged in the connecting box.

[0011] Preferably, an oil receiving hole is provided on the bottom wall of the movable seat, the oil receiving hole is connected to the mounting hole, a filter is provided at the upper end of the oil receiving hole, a recovery pipe is provided in the movable seat, one end of the recovery pipe is connected to one end of the oil receiving hole, and the other end of the recovery pipe is connected to the input end of the second pump body, the second pump body is provided in the connecting box, and the output end of the second pump body is connected to the oil tank.

[0012] Preferably, a guide block is provided at the bottom of the oil receiving hole, and the height of the guide block close to the connection box is lower than the height of the guide block away from the connection box.

[0013] Preferably, a first through hole is provided near one end of the connecting box on the movable seat, a second through hole is provided on the side wall of the connecting box, the first through hole is connected to the second through hole, a mounting post is slidingly provided in the first through hole, one end of the mounting post is fixedly connected to the flaring cone, the other end of the mounting post extends into the connecting box and a connecting hole is provided, a plurality of connecting grooves are provided on the inner wall of the connecting hole, and the connecting hole is connected to the driving motor through a connecting mechanism.

[0014] Preferably, the drive motor is connected to the upper surface of the oil tank in a left-right sliding manner through a slider.

[0015] Also included is a process for expanding a high-pressure pipe fitting for a ship, which uses the above-mentioned expanding device for a high-pressure pipe fitting for a ship to expand the pipe, comprising the following steps:

[0016] Take a pipe body and clamp the pipe body by a clamping mechanism;

[0017] Spray lubricating oil onto the outside of the flaring cone through the oil spray assembly;

[0018] The driving mechanism is started, and the driving mechanism drives the moving seat to move toward the pipe body through the connecting box. The expanding cone presses one end of the pipe body, thereby expanding the pipe mouth.

[0019] The technical solution of the present invention has the following advantages: The present invention provides a flaring device and flaring process for high-pressure pipe fittings for ships, which relates to the technical field of high-pressure pipe fitting processing. The flaring device includes a base, a clamping mechanism and a flaring mechanism are arranged on the base, the clamping mechanism is used to clamp the pipe fitting body, the flaring mechanism is arranged on one side of the clamping mechanism, the flaring mechanism includes a movable seat, a flaring cone and an oil spray assembly, a mounting hole is arranged in the movable seat, a flaring cone is arranged in the center of the mounting hole, an oil spray assembly is arranged in the mounting hole, the oil spray assembly is used to spray lubricating oil onto the side of the flaring cone, a connecting box is arranged on the side of the movable seat away from the clamping mechanism, and a driving mechanism is arranged on the side of the connecting box away from the movable seat. In the present invention, by arranging the oil spray assembly on the outside of the flaring cone, the oil spray assembly is used to evenly spray lubricating oil on the outer wall of the flaring cone, forming a lubricating film between the flaring cone and the pipe fitting body, which can effectively reduce the friction between the flaring cone and the pipe fitting body, significantly slow down the wear rate of the flaring cone, and extend the service life of the flaring cone.

[0020] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the devices particularly pointed out in the written description and the accompanying drawings.

[0021] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a side view of a movable seat in a high-pressure pipe expansion device for ships according to the present invention;

[0024] Figure 2 For the present invention Figure 1 Top view of the middle flared cone;

[0025] Figure 3 This is a schematic diagram of the overall structure of a high-pressure pipe expansion device for ships according to the present invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of a high-pressure pipe expansion device for ships according to the present invention;

[0027] Figure 5 For the present invention Figure 4 A magnified view of the structure at center A;

[0028] Figure 6 It is a side view of the adjustment ring structure of the present invention;

[0029] Figure 7 For the present invention Figure 4 A magnified view of the structure at point B in the middle;

[0030] Figure 8 For the present invention Figure 4 A magnified view of the structure at point C in the middle;

[0031] Figure 9 Schematic diagram of the expansion cone expanding the pipe fitting in the present invention;

[0032] Figure 10 Schematic diagram of the separation of the expansion cone and the pipe in the present invention;

[0033] Figure 11 This is a schematic diagram of dismantling the expansion cone in the present invention;

[0034] Figure 12 For the present invention Figure 11 Enlarged view of the structure at point D in the middle.

[0035] In the figure: 1. Base; 2. Pipe body; 3. Moving seat; 4. Expanding cone; 5. Mounting hole; 6. Connecting box; 7. Support block; 8. Pressing plate; 9. First electric push rod; 10. Mounting frame; 11. Baffle; 12. Second electric push rod; 13. Sliding block; 14. Third electric push rod; 15. Diverter pipe; 16. Nozzle; 17. First pump body; 18. Oil receiving hole; 19. Filter screen; 20. Second pump body; 21. Oil tank; 22. First scraper; 23. Guide block; 24. Mounting column; 25. Connecting hole; 26. Connecting groove; 27. Drive motor; 28. Connecting column; 29. ​​First sliding hole; 30. Mounting Cavity; 31. Second sliding hole; 32. Mounting groove; 33. Third sliding hole; 34. Elastic plate; 35. Block; 36. Sliding rod; 37. First hinged rod; 38. Second hinged rod; 39. Drive rod; 40. Return spring; 41. First annular groove; 42. Fourth sliding hole; 43. Moving ring; 44. Guide column; 45. First spring; 46. Sixth sliding hole; 47. Seventh sliding hole; 48. Second annular groove; 49. Connecting block; 50. Guide sleeve; 51. Second spring; 52. Rotating gear ring; 53. Drive plate; 54. Servo motor; 55. Drive gear; 56. Second scraper; 57. Oil tank. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0037] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] Example 1:

[0039] The embodiment of the present invention provides a high-pressure pipe expansion device for ships, such as Figure 1 、 Figure 3As shown, it includes: a base 1, a clamping mechanism and a flaring mechanism are provided on the base 1, the clamping mechanism is used to clamp the pipe body 2, the flaring mechanism is arranged on one side of the clamping mechanism, the flaring mechanism includes a movable seat 3, a flaring cone 4 and an oil injection assembly, a mounting hole 5 is provided in the movable seat 3, a flaring cone 4 is provided at the center of the mounting hole 5, an oil injection assembly is provided in the mounting hole 5, and the oil injection assembly is used to spray lubricating oil to the side of the flaring cone 4, a connecting box 6 is provided on the side of the movable seat 3 away from the clamping mechanism, and a driving mechanism is provided on the side of the connecting box 6 away from the movable seat 3.

[0040] After the flaring operation is completed, the pipe body 2 is first placed in the clamping mechanism of the base 1, and then the pipe body 2 is clamped by the clamping mechanism to ensure that the pipe body 2 will not be displaced during the flaring process. Then, the lubricating oil is sprayed to the outside of the flaring cone 4 through the oil spraying assembly. After the spraying is completed, the driving mechanism is started, and the driving mechanism drives the movable seat 3 to move toward the direction of the pipe body 2 through the connecting box 6. The movable seat 3 drives the flaring cone 4 to move toward the direction of the pipe body 2. The flaring cone 4 has a cone structure, and the diameter of the end of the flaring cone 4 close to the connecting box 6 is larger than the diameter of the end of the flaring cone 4 away from the connecting box 6. The flaring cone 4 is aligned with the pipe mouth of the pipe body 2. When the flaring cone 4 contacts the pipe mouth, it continues to apply thrust, so that the pipe mouth is gradually expanded and formed under the action of the flaring cone 4 until the flaring cone 4 expands the pipe mouth to a preset size. The preset size is set by the actual processing. Finally, the driving mechanism is controlled to retract, the flaring cone 4 is separated from the pipe mouth, and the flaring work of the pipe body 2 is completed. By arranging an oil spray assembly on the outside of the flaring cone 4 and using the oil spray assembly to evenly spray lubricating oil on the outer wall of the flaring cone 4, a lubricating film is formed between the flaring cone 4 and the pipe body 2, which can effectively reduce the friction between the flaring cone 4 and the pipe body 2, significantly slow down the wear rate of the flaring cone 4, and extend the service life of the flaring cone 4. In addition, by lubricating the flaring cone 4 and the pipe mouth of the pipe body 2 with lubricating oil, the pipe mouth can be subjected to more uniform force during the flaring process, reducing quality problems such as pipe mouth deformation and surface scratches caused by uneven friction, improving the dimensional accuracy and surface finish of the pipe body 2 after flaring, enhancing the consistency and stability of the flaring of the pipe body 2, and improving product quality.

[0041] Example 2:

[0042] On the basis of the above embodiment 1, Figure 3 As shown, the clamping mechanism includes several support blocks 7, the upper surface of the support blocks 7 is provided with grooves, the grooves are used to place the pipe body 2, and a pressure plate 8 is provided above the support blocks 7. The lower surface of the pressure plate 8 is adapted to the outer wall of the pipe body 2. The upper end of the pressure plate 8 is connected to the output end of the first electric push rod 9. The first electric push rod 9 is provided on the mounting frame 10, and the mounting frame 10 is provided on the base 1;

[0043] A baffle 11 is provided on the side of the base 1 away from the driving mechanism.

[0044] The working principle and beneficial effects of the above technical solution are as follows: before performing the flaring operation, the pipe body 2 is first placed in the groove of the support block 7, the movement of the pipe body 2 is restricted by the groove, and the pipe body 2 is positioned, and then the first electric push rod 9 is started, the first electric push rod 9 is extended to drive the pressure plate 8 to move downward, and the lower surface of the pressure plate 8 contacts the pipe body 2, thereby clamping the pipe body 2 and restricting the movement of the pipe body 2. Under the clamping action of the clamping mechanism, the pipe body 2 can remain stable during the flaring operation and will not be displaced by the force of the flaring cone 4. A baffle 11 is provided on one side of the base 1, and the baffle 11 blocks the end of the pipe body 2 away from the flaring mechanism to prevent the pipe body 2 from sliding on the support block 7, further improving the stability of the pipe body 2 and ensuring the flaring quality. After the flaring operation is completed, the first electric push rod 9 is retracted, and the flared pipe body 2 can be taken out from the support block 7.

[0045] Example 3:

[0046] On the basis of Example 1 or 2, as Figure 3 As shown, the driving mechanism includes a second electric push rod 12 . The second electric push rod 12 is arranged on the base 1 , and the output end of the second electric push rod 12 is connected to the connection box 6 .

[0047] The working principle and beneficial effects of the above technical solution are as follows: the second electric push rod 12 is extended to drive the connecting box 6 to move toward the pipe body 2, and the connecting box 6 drives the moving seat 3 to slide on the surface of the base 1, thereby driving the expanding cone 4 in the moving seat 3 to move toward the pipe body 2. During this process, the expanding cone 4 gradually contacts the pipe mouth. As the expanding cone 4 continues to move, the pipe mouth gradually expands. When the pipe mouth expands to a preset size, the expanding operation is completed, and the second electric push rod 12 retracts to the initial position, so that the expanding cone 4 is separated from the pipe mouth, waiting for the next expanding operation. The second electric push rod 12 can provide a smooth and continuous linear driving force, thereby ensuring that the force is uniform during the expanding process of the pipe body 2, effectively improving the accuracy and consistency of the expanding size, and improving product quality.

[0048] Example 4:

[0049] On the basis of any one of Examples 1-3, Figure 1 、 Figure 2 、 Figure 4As shown, the oil injection assembly includes a sliding block 13, which is arranged on the side of the mounting hole 5 close to the connecting box 6, the front side of the sliding block 13 is connected to the output end of the third electric push rod 14, the third electric push rod 14 is arranged on the outer wall of the moving seat 3, and a shunt pipe 15 is arranged on the side of the sliding block 13 away from the connecting box 6. The shunt pipe 15 is arranged along the busbar direction of the flaring cone 4, and a plurality of nozzles 16 are arranged on the side of the shunt pipe 15 close to the flaring cone 4. One end of the shunt pipe 15 is connected to the output end of the first pump body 17 through the oil supply pipe, and the input end of the first pump body 17 is connected to the oil tank 21. The first pump body 17 and the oil tank 21 are arranged in the connecting box 6.

[0050] The working principle and beneficial effects of the above technical solution are as follows: when the pipe body 2 is clamped, the third electric push rod 14 pushes the sliding block 13 to move, and the sliding block 13 drives the shunt pipe 15 to move toward the flaring cone 4 until the distance between the nozzle 16 and the surface of the flaring cone 4 reaches the preset spraying distance, which is 6-8mm. Then the first pump body 17 is started, and the oil tank 21 stores lubricating oil. The first pump body 17 is started to pump the lubricating oil into the oil supply pipe, and the lubricating oil flows into the shunt pipe 15 through the oil supply pipe, and finally passes through the multiple nozzles 16. The lubricating oil is sprayed onto the outside of the flaring cone 4 in the form of a spray. After the lubricating oil is sprayed, the first pump body 17 stops working, and the third electric push rod 14 drives the sliding block 13 to move to the initial position, and the lubricating oil is sprayed onto the outer wall of the flaring cone 4 through the nozzle 16. A lubricating oil film can be formed on the surface of the flaring cone 4, thereby reducing the friction coefficient between the flaring cone 4 and the pipe mouth, reducing the wear of the flaring cone 4, and extending the service life of the flaring cone 4. In addition, since the wear of the flaring cone 4 is reduced, the flaring quality of the pipe mouth can be improved, and the flaring cone 4 can be prevented from scratching the inner wall of the pipe mouth.

[0051] Example 5:

[0052] On the basis of Example 4, Figure 1 、 Figure 2 、 Figure 4 、 Figure 7 As shown, an oil receiving hole 18 is provided on the bottom wall of the movable base 3, the oil receiving hole 18 is communicated with the mounting hole 5, a filter screen 19 is provided on the upper end of the oil receiving hole 18, a recovery pipe is provided in the movable base 3, one end of the recovery pipe is communicated with one end of the oil receiving hole 18, and the other end of the recovery pipe is connected to the input end of the second pump body 20, the second pump body 20 is provided in the connection box 6, and the output end of the second pump body 20 is connected to the oil tank 21;

[0053] A guide block 23 is provided at the bottom of the oil receiving hole 18, and the height of the guide block 23 close to the connection box 6 is lower than the height of the guide block 23 away from the connection box 6;

[0054] A first scraper 22 is provided on one side of the sliding block 13 . The first scraper 22 is provided along the generatrix direction of the flared cone 4 . The first scraper 22 is parallel to the diverter pipe 15 . One side of the first scraper 22 contacts the outer wall of the flared cone 4 .

[0055] The working principle and beneficial effects of the above technical solution are as follows: during the process of the nozzle 16 spraying the lubricating oil, part of the lubricating oil will drip onto the bottom wall of the movable seat 3, and the lubricating oil will flow into the oil receiving hole 18 after being filtered by the filter 19, and will be collected at the end of the oil receiving hole 18 close to the connecting box 6 under the action of the guide block 23, and then the second pump body 20 will be started, and the second pump body 20 will extract the lubricating oil in the oil receiving hole 18 into the oil tank 21 through the recovery pipe, so as to realize the recycling of the lubricating oil and save costs. By setting the filter 19, impurities in the lubricating oil can be filtered to prevent impurities from entering the oil tank 21, thereby reducing scratches or wear on the surface of the flaring cone 4 caused by impurities, and further extending the service life of the flaring cone 4.

[0056] Example 6:

[0057] On the basis of Example 4 or 5, Figure 4 As shown, the movable base 3 is provided with a first through hole near one end of the connection box 6, and a second through hole is provided on the side wall of the connection box 6. The first through hole is connected to the second through hole. A mounting post 24 is slidably provided in the first through hole. One end of the mounting post 24 is fixedly connected to the flaring cone 4. The other end of the mounting post 24 extends into the connection box 6 and is provided with a connecting hole 25. A plurality of connecting grooves 26 are provided on the inner wall of the connecting hole 25. The connecting hole 25 is connected to the drive motor 27 through a connecting mechanism.

[0058] The driving motor 27 is connected to the upper surface of the oil tank 21 through a slider so as to slide left and right.

[0059] The working principle and beneficial effects of the above technical solution are as follows: a mounting post 24 is provided on one side of the flaring cone 4 close to the connecting box 6, and the mounting post 24 is fixedly connected to the flaring cone 4. By connecting the mounting post 24 to the connecting mechanism, the flaring cone 4 can be installed in the mounting hole 5 of the movable seat 3, and the rotation of the driving motor 27 can drive the mounting post 24 to rotate through the connecting mechanism, and the rotation of the mounting post 24 can drive the flaring cone 4 to rotate. When the oil spraying assembly sprays lubricating oil to the flaring cone 4, the driving motor 27 is started and drives the mounting post 24 to rotate a preset angle through the connecting mechanism, and the preset angle is greater than 360°. At the same time, the mounting post 24 drives the flaring cone 4 to rotate in the mounting hole 5, so that the lubricating oil can be evenly sprayed to the outer wall of the flaring cone 4. Therefore, only one set of oil spraying assemblies needs to be set to spray the lubricating oil to the contact surface between the flaring cone 4 and the pipe mouth, thereby improving the spraying effect. At the same time, A first scraper 22 is provided below the diverter pipe 15. During the lubricating oil spraying process, the first scraper 22 contacts the outer wall of the flaring cone 4. The first scraper 22 can scrape the remaining lubricating oil and impurities on the outer wall of the flaring cone 4 to the bottom of the first scraper 22, and then the lubricating oil is sprayed by the nozzle 16, thereby improving the uniformity of the thickness of the lubricating oil film, improving the lubrication effect, and avoiding the outer wall of the flaring cone 4 from being damaged by uneven force when the pipe mouth is expanded due to the accumulation of lubricating oil or impurities, ensuring the consistency of the expansion, reducing the quality problems of the expansion, and improving the product quality. By providing the scraper, the frequency of manual cleaning of the flaring cone 4 can also be reduced, and the maintenance difficulty and labor cost of the flaring cone 4 can be reduced. The lubricating oil and impurities scraped off by the scraper can fall onto the filter 19, the impurities are intercepted by the filter 19, and the lubricating oil enters the oil receiving hole 18 through the filter 19, thereby realizing the recycling of the lubricating oil.

[0060] Example 7:

[0061] On the basis of Example 6, Figure 4 、 Figure 8 、 Figure 11 、 Figure 12As shown, the connecting mechanism includes a connecting column 28, which is slidably connected to the inner wall of the connecting hole 25 left and right, one end of the connecting column 28 is connected to the output end of the drive motor 27, a first sliding hole 29 is provided in the connecting column 28, and the first sliding hole 29 is provided with a mounting cavity 30 at one end close to the flaring cone 4, and the other end of the first sliding hole 29 is connected to the outside of the connecting column 28 through a second sliding hole 31, a plurality of mounting grooves 32 are provided on the outer wall of the connecting column 28, and the mounting groove 32 is connected to the mounting cavity 30 through a third sliding hole 33, and an elastic plate 34 is provided in the mounting groove 32, and one end of the elastic plate 34 is connected to the end of the mounting groove 32 away from the flaring cone 4 Then, a block 35 is provided at one end of the elastic plate 34 near the flared cone 4, and the block 35 is adapted to the connecting groove 26. A sliding rod 36 is slidably provided in the first sliding hole 29, and one end of the sliding rod 36 extends into the mounting cavity 30 and is provided with a first hinged rod 37. The first hinged rod 37 is hingedly connected to one end of the second hinged rod 38 away from one end of the sliding rod 36, and the other end of the second hinged rod 38 passes through the third sliding hole 33 and is hingedly connected to the side wall of the block 35. A driving rod 39 is provided in the second sliding hole 31, and one end of the driving rod 39 is connected to the sliding rod 36. The driving rod 39 is connected to the inner wall of the second sliding hole 31 through a return spring 40.

[0062] The working principle and beneficial effects of the above technical solution are as follows: when installing the flared cone 4, the mounting post 24 on one side of the flared cone 4 is inserted into the first through hole and the second through hole in sequence, and the connecting post 28 is aligned with the connecting hole 25 and inserted into the connecting hole 25. As the flared cone 4 is pushed inward, the connecting post 28 slides in the connecting hole 25, and a guide slope is set at one end of the clamping block 35 away from the drive motor 27. When the clamping block 35 contacts the connecting hole 25, the contact between the connecting hole 25 and the guide slope can make the clamping block 35 move into the mounting groove 32, the elastic plate 34 bends, and then the connecting post 28 slides smoothly into the connecting hole 25. When the connecting post 28 can no longer slide When the flaring cone 4 or the connecting column 28 is rotated, the block 35 is aligned with the connecting groove 26 on the inner wall of the connecting hole 25. Under the elastic force of the elastic plate 34, the block 35 slides into the connecting groove 26, which can realize the detachable connection between the connecting column 28 and the connecting hole 25, which is convenient for the rapid installation of the flaring cone 4. The blocks 35 and the connecting groove 26 are both provided with a plurality of blocks 35. Through the cooperation of the plurality of blocks 35 and the connecting groove 26, the reliability and stability of the connection between the connecting column 28 and the connecting hole 25 can be improved, and the flaring cone 4 can be prevented from falling off. When the fuel injection assembly is spraying fuel, the drive motor 27 rotates to drive the connecting column 28 to rotate, and the connecting column 28 passes through the block 3 5 drives the mounting post 24 to rotate, and the rotation of the mounting post 24 drives the flaring cone 4 to rotate, thereby achieving all-round oil spraying on the surface of the flaring cone 4; when the flaring cone 4 is damaged, the driving rod 39 is pulled in the direction close to the driving motor 27, and the driving rod 39 drives the sliding rod 36 to slide in the first sliding hole 29 in the direction close to the driving motor 27, and the sliding rod 36 drives the second hinged rod 38 to move, and the second hinged rod 38 drives the first hinged rod 37 to slide into the mounting cavity 30, and the first hinged rod 37 drives the clamping block 35 to slide into the mounting groove 32, so that the clamping block 35 is separated from the connecting groove 26, and at this time, the flaring cone 4 is pulled away from the connecting box 6. , the mounting post 24 can be separated from the connecting post 28, thereby taking the flaring cone 4 out of the mounting hole 5, realizing the rapid removal of the flaring cone 4. By setting the connecting mechanism, the flaring cone 4 can be quickly disassembled and assembled, which is convenient for the rapid replacement of the damaged flaring cone 4, ensuring the flaring quality of the pipe body 2, reducing the downtime for replacement, and improving the production efficiency. In addition, the driving motor 27 can drive the flaring cone 4 to rotate through the connecting mechanism, thereby improving the cleaning effect of residual lubricating oil and impurities on the surface of the flaring cone 4, and ensuring the uniformity of the lubricating oil spraying thickness, significantly slowing down the wear rate of the flaring cone 4, and extending the service life of the flaring cone 4.

[0063] Example 8:

[0064] On the basis of Example 6 or 7, Figure 4-12As shown, a first annular groove 41 is provided on the outer wall of the movable seat 3, and the central axis of the first annular groove 41 is in the same straight line with the central axis of the mounting hole 5. The first annular groove 41 is connected to the mounting hole 5 through a fourth sliding hole 42. There are three fourth sliding holes 42. The three fourth sliding holes 42 are distributed in an annular array about the center of the first annular groove 41. A movable ring 43 is slidingly provided in the first annular groove 41. A fifth sliding hole is provided in the movable ring 43. A guide column 44 is provided in the fifth sliding hole. Both ends of the guide column 44 are respectively connected to the inner walls of both sides of the first annular groove 41. The guide column 4 4 is sleeved with a first spring 45, one end of the first spring 45 is connected to the movable ring 43, and the other end of the first spring 45 is connected to the inner wall of the first ring groove 41. A sixth sliding hole 46 is provided on the side of the movable ring 43 close to the fourth sliding hole 42, one end of the sixth sliding hole 46 is communicated with the fourth sliding hole 42, and the other end of the sixth sliding hole 46 is communicated with the seventh sliding hole 47, which is provided in the movable ring 43, and the end of the seventh sliding hole 47 away from the sixth sliding hole 46 is communicated with the second ring groove 48, which is provided on the outer wall of the movable ring 43. A connecting block 49 is slidably provided in the sixth sliding hole 46. The lower end of the connecting block 49 is adapted to the outer wall of the end of the flared cone 4 close to the connection box 6. One end of the connecting block 49 extends through the fourth sliding hole into the mounting hole 5. A guide sleeve 50 is sleeved on the outside of the connecting block 49. The guide sleeve 50 is slidably connected to the inner wall of the fourth sliding hole. One end of the guide sleeve 50 extends into the mounting hole 5. The other end of the guide sleeve 50 is connected to the inner side of the movable ring 43. The end of the connecting block 49 away from the flared cone 4 is connected to the inner wall of the sixth sliding hole 46 through a plurality of second springs 51. The second ring groove 48 is provided in the A rotating gear ring 52 is rotatably provided, and a driving plate 53 is provided in the seventh sliding hole 47. One end of the driving plate 53 is connected to the inner wall of the rotating gear ring 52, and the other end of the driving plate 53 contacts the side of the connecting block 49 away from the flaring cone 4. The thickness of the driving plate 53 increases step by step along the radial direction of the moving ring 43. The three driving plates 53 are distributed in a circular array about the center of the moving ring 43. The outer ring of the rotating gear ring 52 is toothed, and a servo motor 54 is provided on the outer wall of the moving ring 43. A driving gear 55 is provided at the output end of the servo motor 54, and the driving gear 55 is meshed with the outer ring of the rotating gear ring 52.

[0065] The working principle and beneficial effects of the above technical solution are as follows: during the retraction process of the second electric push rod 12, since the flaring cone 4 contacts the pipe mouth, the flaring cone 4 will drive the mounting column 24 to slide in the first through hole, thereby driving the drive motor 27 to slide above the oil tank 21 through the connecting column 28. In order to avoid the drive motor 27 from hitting and prolong the service life of the connecting mechanism, a first annular groove 41 is provided on the outer wall of the movable seat 3, a movable ring 43 is slidingly provided in the first annular groove 41, and three connecting blocks 49 are slidingly provided in the movable ring 43. One end of the connecting block 49 contacts the outer wall of the flaring cone 4 close to the end of the connecting box 6. The three connecting blocks 49 contact the flaring cone 4, which can The mouth cone 4 is limited. When the second electric push rod 12 is retracted, the connecting box 6 drives the moving seat 3 to slide in the direction away from the pipe body 2. Since the flaring cone 4 is in contact with the pipe mouth of the pipe body 2, the flaring cone 4 will not move with the moving seat 3. The flaring cone 4 drives the moving ring 43 to slide in the first ring groove 41 through the connecting block 49. The moving ring 43 slides along the guide column 44, and the first spring 45 is stretched. When the outer wall of the moving ring 43 contacts the inner wall of the first ring groove 41 away from the side of the connecting box 6, the moving ring 43 cannot continue to slide. Under the limiting action of the three connecting blocks 49, the flaring cone 4 can be driven to move in the direction away from the pipe body 2, so that the flaring cone 4 is separated from the pipe mouth (such as Figure 10As shown), after the flaring cone 4 is separated from the pipe mouth, the movable ring 43 returns to its original position under the elastic force of the first spring 45, and the movable ring 43 drives the connecting block 49 to move synchronously, and the connecting block 49 drives the flaring cone 4 to return to its original position, and the flaring cone 4 is close to the connection box 6 and contacts the inner wall of the mounting hole 5 close to the connection box 6, thereby providing sufficient support for the flaring cone 4 during the flaring operation. By setting the movable ring 43 and the connecting block 49, when the movable ring 43 contacts the side of the first ring groove 41 away from the connection box 6, the driving motor 27 will not collide with the inner wall of the connection box 6, effectively The drive motor 27 is protected, and in the process of separating the flaring cone 4 from the pipe mouth, there is no need to rely on the cooperation of the clamping block 35 and the connecting groove 26, thereby avoiding damage to the clamping block 35, ensuring the reliability of the connection between the mounting column 24 and the connecting column 28, and extending the service life of the connection mechanism; when removing the flaring cone 4, the servo motor 54 is started, the servo motor 54 rotates to drive the driving gear 55 to rotate, the driving gear 55 rotates to drive the rotating gear ring 52 to rotate, the rotating gear ring 52 rotates to drive the driving plate 53 to slide in the seventh sliding hole 47, and the contact position of the driving plate 53 and the connecting block 49 gradually increases. The flared cone 4 is then separated from the outside of the flared cone 4 and the flared cone 4 can be removed. When installing the flared cone 4, one side of the flared cone 4 is brought into contact with the inner wall of the mounting hole 5. The servo motor 54 is started, and the servo motor 54 rotates in the opposite direction to drive the driving gear 55 to rotate in the opposite direction. The driving gear 55 drives the rotating gear ring 52 to rotate in the opposite direction, thereby driving the driving plate 53 to rotate. The contact position between the driving plate 53 and the connecting block 49 gradually becomes thicker until the connecting block 49 contacts the outer wall of the flared cone 4. At this time, Stop the servo motor 54 and the flaring cone 4 is installed. Since the shape of the connecting block 49 is adapted to the shape of the flaring cone 4, the connecting block 49 does not need to be in close contact with the outer wall of the flaring cone 4 to limit the flaring cone 4, ensuring that the flaring cone 4 can rotate under the drive motor 27, thereby reducing the energy consumption of the drive motor 27; the position of the connecting block 49 can be adjusted by rotating the rotating gear ring 52, so that the connecting block 49 can adapt to flaring cones 4 of different sizes, thereby improving the scope of application and facilitating the replacement of different flaring cones 4, thereby flaring the pipe bodies 2 of different calibers.

[0066] Example 9:

[0067] On the basis of Example 8, Figure 4 、 Figure 7 As shown, a second scraper 56 is provided between the front and rear guide sleeves 50, and both ends of the second scraper 56 are fixedly connected to the outer walls of the front and rear guide sleeves 50 respectively. The second scraper 56 is arc-shaped, and the outer wall of the second scraper 56 is slidingly connected to the inner wall of the mounting hole 5. The longitudinal cross-section of the second scraper 56 is triangular, and an oil receiving tank 57 is provided on the side of the movable seat 3 away from the connecting box 6.

[0068] The working principle and beneficial effects of the above technical solution are as follows: when the guide sleeve 50 moves outward, it can drive the second scraper 56 to move toward the outside of the mounting hole 5, and the second scraper 56 contacts the inner wall of the mounting hole 5, thereby scraping off impurities on the filter screen 19 during the sliding process, and pushing the impurities to the top of the oil receiving box 57. Some impurities can fall into the oil receiving box 57, and the impurities can be collected uniformly through the oil receiving box 57, reducing the difficulty of cleaning for the staff. By scraping off impurities on the surface of the filter screen 19 by the second scraper 56, the risk of clogging of the filter screen 19 can be reduced, the lubricating oil recovery effect can be improved, the maintenance frequency can be reduced, and the service life of the filter screen 19 can be extended.

[0069] Example 10:

[0070] On the basis of any one of Examples 1-9, a process for expanding a high-pressure pipe fitting for a ship is further included, wherein the expansion is performed using the above-mentioned high-pressure pipe fitting expanding device for a ship, comprising the following steps:

[0071] Take a pipe body 2 and clamp the pipe body 2 using a clamping mechanism;

[0072] Spray lubricating oil onto the outside of the flaring cone 4 through the oil spray assembly;

[0073] The driving mechanism is started, and the driving mechanism drives the moving seat 3 to move toward the pipe body 2 through the connecting box 6. The expanding cone 4 pressurizes one end of the pipe body 2, thereby expanding the pipe opening.

[0074] The working principle and beneficial effects of the above technical solution are as follows: first, a pipe body 2 is prepared, the end of the pipe body 2 to be expanded is heated, and then the pipe body 2 is installed in the clamping mechanism, and the pipe body 2 is clamped by the clamping mechanism. At the same time, lubricating oil is sprayed to the outside of the expansion cone 4 through the oil spraying assembly, thereby improving efficiency and reducing waiting time. When the pipe body 2 is clamped, the lubricating oil spraying is completed. Then, the driving mechanism is started, and the driving mechanism drives the movable seat 3 to move toward the pipe body 2 through the connecting box 6. The expansion cone 4 pressurizes one end of the pipe body 2 and expands the pipe mouth until the pipe mouth expands to a preset size. By arranging the oil spraying assembly on the outside of the expansion cone 4, the oil spraying assembly is used to evenly spray lubricating oil on the outer wall of the expansion cone 4, forming a lubricating film between the expansion cone 4 and the pipe body 2, which can effectively reduce the friction between the expansion cone 4 and the pipe body 2, significantly slow down the wear rate of the expansion cone 4, and extend the service life of the expansion cone 4.

[0075] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention.

[0076] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0077] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A high-pressure pipe expansion device for ships, characterized in that: include: A base (1) is provided on the base (1), wherein a clamping mechanism and an expanding mechanism are provided, wherein the clamping mechanism is used for clamping a pipe body (2), the expanding mechanism is provided on one side of the clamping mechanism, the expanding mechanism comprises a movable seat (3), an expanding cone (4) and an oil spraying assembly, a mounting hole (5) is provided in the movable seat (3), the expanding cone (4) is provided at the center of the mounting hole (5), the oil spraying assembly is provided in the mounting hole (5), and the oil spraying assembly is used for spraying lubricating oil to the side of the expanding cone (4), a connecting box (6) is provided on the side of the movable seat (3) away from the clamping mechanism, and a driving mechanism is provided on the side of the connecting box (6) away from the movable seat (3).

2. A high-pressure pipe expansion device for ships according to claim 1, characterized in that: The clamping mechanism comprises a plurality of support blocks (7), the upper surface of the support blocks (7) is provided with a groove, the groove is used to place the pipe body (2), a pressing plate (8) is provided above the support blocks (7), the lower surface of the pressing plate (8) is adapted to the outer wall of the pipe body (2), the upper end of the pressing plate (8) is connected to the output end of the first electric push rod (9), the first electric push rod (9) is provided on the mounting frame (10), and the mounting frame (10) is provided on the base (1).

3. A high-pressure pipe expansion device for ships according to claim 2, characterized in that: A baffle (11) is provided on the side of the base (1) away from the driving mechanism.

4. A high-pressure pipe expansion device for ships according to claim 1, characterized in that: The driving mechanism comprises a second electric push rod (12), which is arranged on the base (1), and an output end of the second electric push rod (12) is connected to the connection box (6).

5. A high-pressure pipe expansion device for ships according to claim 1, characterized in that: The oil injection assembly comprises a sliding block (13), the sliding block (13) being arranged on a side of the mounting hole (5) close to the connection box (6), the front side of the sliding block (13) being connected to the output end of a third electric push rod (14), the third electric push rod (14) being arranged on the outer wall of the moving seat (3), a shunt pipe (15) being arranged on a side of the sliding block (13) away from the connection box (6), the shunt pipe (15) being arranged along the busbar direction of the flaring cone (4), a plurality of nozzles (16) being arranged on a side of the shunt pipe (15) close to the flaring cone (4), one end of the shunt pipe (15) being connected to the output end of a first pump body (17) through an oil supply pipe, the input end of the first pump body (17) being connected to an oil tank (21), and the first pump body (17) and the oil tank (21) being arranged in the connection box (6).

6. A high-pressure pipe expansion device for ships according to claim 5, characterized in that: An oil receiving hole (18) is provided on the bottom wall of the movable seat (3), the oil receiving hole (18) is communicated with the mounting hole (5), a filter screen (19) is provided at the upper end of the oil receiving hole (18), a recovery pipe is provided in the movable seat (3), one end of the recovery pipe is communicated with one end of the oil receiving hole (18), and the other end of the recovery pipe is connected to the input end of the second pump body (20), the second pump body (20) is provided in the connection box (6), and the output end of the second pump body (20) is connected to the oil tank (21).

7. A high-pressure pipe expansion device for ships according to claim 6, characterized in that: A guide block (23) is provided at the bottom of the oil receiving hole (18), and the height of the guide block (23) close to the connection box (6) is lower than the height of the guide block (23) away from the connection box (6).

8. The high-pressure pipe expansion device for ships according to claim 5, characterized in that: A first through hole is provided on one end of the movable seat (3) close to the connection box (6), a second through hole is provided on the side wall of the connection box (6), the first through hole is communicated with the second through hole, a mounting post (24) is slidably provided in the first through hole, one end of the mounting post (24) is fixedly connected to the flaring cone (4), the other end of the mounting post (24) extends into the connection box (6) and is provided with a connection hole (25), a plurality of connection grooves (26) are provided on the inner wall of the connection hole (25), and the connection hole (25) is connected to the drive motor (27) through a connection mechanism.

9. A high-pressure pipe expansion device for ships according to claim 8, characterized in that: The driving motor (27) is connected to the upper surface of the oil tank (21) by sliding the slider in a left-right manner.

10. A process for expanding a high-pressure pipe for a ship, comprising: using a high-pressure pipe expanding device for a ship as claimed in any one of claims 1 to 9, wherein: The following steps are involved: Taking a pipe body (2), and clamping the pipe body (2) by a clamping mechanism; spraying lubricating oil onto the outside of the flaring cone (4) through the oil spray assembly; The driving mechanism is started, and the driving mechanism drives the moving seat (3) to move toward the pipe body (2) through the connecting box (6), and the expanding cone (4) pressurizes one end of the pipe body (2), thereby expanding the pipe opening.

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