Forming device of large-size section internal spiral rib metal pipe

Abstract

The utility model discloses a forming device for a large-size section internal spiral rib metal pipe, which comprises a mounting table, and a first fixing block and a second fixing block are respectively arranged at two ends of the top of the mounting table; a mounting frame is arranged on the side, close to the second fixing block, of the first fixing block, a rotating rod is connected to the side, close to the first fixing block, of the second fixing block, and a core rod with a spiral groove and a round rod are sequentially arranged at the other end of the rotating rod. Rollers in planetary arrangement are arranged on the outer surface of the round rod; a cooling frame is arranged on one side of the mounting table, a water spraying head is arranged on the cooling frame, and the water spraying position of the water spraying head is matched with the position of the roller. According to the forming device for the large-size section internal spiral rib metal pipe, metal pipe blanks of different sizes can be installed for forming, internal spiral ribs of different specifications can be machined, the core rod is easy and rapid to install and detach, adjustment is flexible, and forming efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal forming, and in particular relates to a forming device for a metal pipe with large-size cross-section and internal spiral ribs. Background Art

[0002] As demand for oil and natural gas continues to increase, pipeline pressures and diameters are also increasing. To improve transportation efficiency and ensure pipeline stability and safety, it is necessary to increase pipe diameters and enhance pipe material strength to achieve these goals. Therefore, ultra-high-pressure, ultra-large-diameter, high-strength pipelines have become an inevitable choice for the development of long-distance oil and natural gas pipelines.

[0003] The role of metal pipes in transportation is mainly reflected in the following aspects: (1) High safety: Due to its hard material and high hardness and strength, metal pipes can withstand a large amount of pressure and load, avoiding the possibility of accidents such as explosions and leaks. In addition, metal pipes are equipped with multiple security measures such as explosion-proof doors, anti-drop, and anti-collision, which further improve the safety of transportation. (2) Strong adaptability: Metal pipe transportation is applicable to a variety of industries, including oil, natural gas, communications, electricity, etc. It is not only suitable for long-distance transportation, but also for short-distance transportation within the city, with strong adaptability and flexibility. (4) Low cost: Compared with other modes of transportation, the cost of metal pipe transportation is lower. During the transportation process, the maintenance cost and transportation cost of metal pipes are very low. At the same time, a metal pipe can be used multiple times, saving a lot of capital expenditure. (5) Special use: In special environments, such as the construction of the Qinghai-Tibet Railway, metal pipes (especially low-temperature hot rods) play a key role. These metal pipes act as "low-temperature heat rods" to stabilize the permafrost through their one-way heat transfer properties, preventing the roadbed from sinking due to melting permafrost, and ensuring the stability of the railway.

[0004] However, current metal tube forming devices cannot meet the flexible requirements for tube size conversion, and the forming process is complex, with low forming efficiency and high production costs. Therefore, there is a need in the art to develop a forming device and method for large-sized spiral ribbed metal tubes that can effectively solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a forming device for metal tubes with large-size cross-sections and internal spiral ribs. The device can be installed with metal tube blanks of different sizes for forming processes, and internal spiral ribs of different specifications can be processed. The installation and removal of the core rod are simple and quick, the adjustment is flexible, and the forming efficiency is improved.

[0006] To achieve the above-mentioned purpose, the utility model provides a forming device for spirally ribbed metal tubes with large cross-sections, comprising a mounting platform, a first fixed block and a second fixed block are respectively provided at both ends of the top of the mounting platform; a mounting frame is provided on the side of the first fixed block close to the second fixed block, the side of the second fixed block close to the first fixed block is connected to one end of a rotating rod, and the other end of the rotating rod is sequentially provided with a core rod with spiral grooves and a round rod; a plurality of planetary-arranged rollers are provided on the outer surface of the round rod; a cooling frame is provided on one side of the mounting platform, and a water spray head is provided on the cooling frame, and the water spraying point of the water spray head matches the position of the roller.

[0007] Preferably, a fixing plate is provided inside the mounting frame, and a second telescopic cylinder is provided at both upper and lower ends of the fixing plate. A through hole is provided on the mounting frame, and the output ends of the second telescopic cylinder extend to the outside of the mounting frame through the through hole and are provided with a fixing plate; an anti-slip pad is provided on the side of the fixing plate away from the second telescopic cylinder.

[0008] Preferably, a first telescopic cylinder is provided at the top of the mounting platform near one end of the first fixed block, and the output end of the first telescopic cylinder is connected to the first fixed block; a slider is provided at the bottom of the first fixed block, and a slide matching the slider is provided at the contact point between the top of the mounting platform and the slider, and the first fixed block is slidably connected to the mounting platform.

[0009] Preferably, the second fixed block is fixedly connected to the mounting platform, a motor is provided on the side of the second fixed block away from the first fixed block, a mounting hole is provided on the side close to the first fixed block, and the rotating rod is connected to the output end of the motor through the mounting hole.

[0010] Preferably, a movable chamber is provided inside the second fixed block, and the movable chamber is movably connected to the second fixed block through a turntable bearing; a third telescopic cylinder is provided on both sides of the movable chamber, and a fixing clamp is provided at the output end of the third telescopic cylinder; the fixing clamp matches the shape of the rotating rod, and an anti-slip pad is provided on the side of the fixing clamp close to the rotating rod.

[0011] Therefore, the utility model adopts the above-mentioned large-size cross-section internal spiral rib metal tube forming device, which can install metal tube blanks of different sizes for forming process, and can process internal spiral ribs of different specifications. The installation and removal of the core rod are simple and quick, and the adjustment is flexible, thereby improving the forming efficiency.

[0012] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a forming device according to an embodiment of a forming device and method for a metal tube with large-sized internal spiral ribs in the present invention;

[0014] Figure 2 This is an embodiment of a forming device and method for a large-size cross-section spiral ribbed metal tube. Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a schematic diagram of the internal structure of the mounting frame of an embodiment of a forming device and method for a large-size cross-section spiral ribbed metal tube according to the present invention;

[0016] Figure 4 This is a structural schematic diagram of the second mounting block of an embodiment of a forming device and method for a large-size cross-section internal spiral ribbed metal tube according to the present invention;

[0017] Figure 5 This is a partial structural schematic diagram of a core rod in an embodiment of a forming device and method for a large-size cross-section spiral ribbed metal tube according to the present invention.

[0018] 1. Mounting table; 2. First fixed block; 3. Second fixed block; 4. Mounting frame; 5. Turntable; 6. Mandrel; 7. Round rod; 8. Roller; 9. First telescopic cylinder; 10. Slider; 11. Slide; 12. Fixed plate; 13. Second telescopic cylinder; 14. Fixed plate; 15. Anti-slip pad; 16. Motor; 17. Mounting hole; 18. Activity chamber; 19. Turntable bearing; 20. Third telescopic cylinder; 21. Fixed clamp; 22. Cooling frame; 23. Sprinkler head; 24. Metal tube blank. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model is further described below through the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the usual meanings understood by persons of ordinary skill in the field to which this utility model belongs. The words "first", "second" and similar terms used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0021] Example

[0022] like Figure 1As shown, a forming device for large-section internal spiral ribbed metal tubes includes a mounting platform 1 with a first fixing block 2 and a second fixing block 3 at each end of the top of the mounting platform 1. The first fixing block 2 is slidably connected to the mounting platform 1, while the second fixing block 3 is fixedly connected to the mounting platform 1. By moving the first fixing block 2, a metal tube blank 24 can be moved and formed.

[0023] A first telescopic cylinder 9 is provided on the top of the mounting platform 1 near one end of the first fixed block 2, and the output end of the first telescopic cylinder 9 is connected to the first fixed block 2. Figure 2 As shown, a slider 10 is provided at the bottom of the first fixed block 2, and a slideway 11 is provided at the top of the mounting platform 1 where the slider 10 contacts the slider 10. Through the interaction between the slider 10 and the slideway 11, the first telescopic cylinder 9 is activated to move the first fixed block 2 on the mounting platform 1.

[0024] A mounting bracket 4 is provided on one side of the first fixing block 2 close to the second fixing block 3. Figure 3 As shown, mounting frame 4 is internally provided with a fixing plate 12, with second telescopic cylinders 13 mounted at both the upper and lower ends of fixing plate 12. Mounting frame 4 is provided with a through-hole, through which the output ends of second telescopic cylinders 13 extend to the exterior of mounting frame 4 and are provided with fixing plates 14. A metal tube 24 is placed on the exterior of mounting frame 4 at one end, and second telescopic cylinder 13 is activated to move fixing plates 14, securing metal tube 24 to mounting frame 4.

[0025] The fixing plate 14 is provided with an anti-skid pad 15 on the side away from the second telescopic cylinder 13. The anti-skid pad 15 not only improves the stability of the metal tube 24 on the mounting frame 4, but also prevents the fixing plate 14 from damaging the metal tube 24 when fixing the metal tube 24.

[0026] like Figure 4-Figure 5 As shown, the second fixed block 3 is connected to one end of a rotating rod 5 on the side closest to the first fixed block 2. The other end of the rotating rod 5 is provided with a core rod 6 with spiral grooves and a round rod 7 in sequence. The outer surface of the round rod 7 is provided with a plurality of rollers 8 arranged in a planetary pattern. A motor 16 is provided on the side of the second fixed block 3 away from the first fixed block 2. A mounting hole 17 is provided on the side of the second fixed block 3 closer to the first fixed block 2. The rotating rod 5 is connected to the output end of the motor 16 through the mounting hole 17. A movable chamber 18 is provided within the second fixed block 3. The movable chamber 18 is movably connected to the second fixed block 3 via a turntable bearing 19. When the motor 16 is started, the turntable bearing 19 allows the movable chamber 18 to rotate along with the rotating rod 5.

[0027] A third telescopic cylinder 20 is installed on both sides of the movable chamber 18. A fixing clamp 21 is installed at the output end of the third telescopic cylinder 20. The fixing clamp 21 matches the shape of the rotating rod 5. Anti-slip pads 15 are installed on the side of the fixing clamp 21 near the rotating rod 5. By activating the third telescopic cylinder 20 to move the fixing clamp 21, mandrels 6 of different sizes and specifications can be quickly and conveniently replaced.

[0028] A cooling rack 22 is provided on one side of the mounting platform 1. A water spray head 23 is mounted on the cooling rack 22. The water spraying point of the water spray head 23 matches the position of the roll 8. To prevent the temperature of the roll 8 from rising too high, the water spray head 23 cools the roll 8 by spraying water, ensuring that the surface temperature of the roll 8 is below 100 degrees Celsius. This prevents the metal tube 24 from softening or melting due to excessive temperature of the roll 8, which could cause the metal tube 24 to adhere to the surface of the roll 8 and make the roll 8 unusable.

[0029] Therefore, the utility model adopts the above-mentioned large-size cross-section internal spiral rib metal tube forming device, which can install metal tube blanks of different sizes for forming process, and can process internal spiral ribs of different specifications. The installation and removal of the core rod are simple and quick, and the adjustment is flexible, thereby improving the forming efficiency.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A forming device for a large-size cross-section metal tube with internal spiral ribs, characterized by: It includes a mounting platform, with a first fixed block and a second fixed block respectively provided at both ends of the top of the mounting platform; a mounting frame is provided on the side of the first fixed block close to the second fixed block, the side of the second fixed block close to the first fixed block is connected to one end of a rotating rod, and the other end of the rotating rod is sequentially provided with a core rod with spiral grooves and a round rod; a plurality of planetary rollers are provided on the outer surface of the round rod; a cooling frame is provided on one side of the mounting platform, and a water spray head is provided on the cooling frame, and the water spraying point of the water spray head matches the position of the roller.

2. The forming device for a large-size cross-section internal spiral ribbed metal tube according to claim 1, characterized in that: A fixing plate is provided inside the mounting frame, and a second telescopic cylinder is provided at the upper and lower ends of the fixing plate. A through hole is provided on the mounting frame, and the output ends of the second telescopic cylinder extend to the outside of the mounting frame through the through hole and are provided with a fixing plate; an anti-slip pad is provided on the side of the fixing plate away from the second telescopic cylinder.

3. The forming device for a large-size cross-section internal spiral ribbed metal tube according to claim 1, characterized in that: A first telescopic cylinder is provided at one end of the top of the mounting platform near the first fixed block, and the output end of the first telescopic cylinder is connected to the first fixed block; a slider is provided at the bottom of the first fixed block, and a slideway matching the slider is provided at the contact point between the top of the mounting platform and the slider, and the first fixed block is slidably connected to the mounting platform.

4. The forming device for a large-size cross-section internal spiral ribbed metal tube according to claim 1, characterized in that: The second fixed block is fixedly connected to the mounting platform. A motor is provided on the side of the second fixed block away from the first fixed block. A mounting hole is provided on the side of the second fixed block close to the first fixed block. The rotating rod is connected to the output end of the motor through the mounting hole.

5. The forming device for a large-size cross-section internal spiral ribbed metal tube according to claim 4, characterized in that: An active chamber is provided inside the second fixed block, and the active chamber is movably connected to the second fixed block through a turntable bearing; a third telescopic cylinder is provided on both sides of the active chamber, and a fixing clamp is provided at the output end of the third telescopic cylinder; the fixing clamp matches the shape of the rotating rod, and an anti-slip pad is provided on the side of the fixing clamp close to the rotating rod.

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