Large-diameter seamless steel pipe inner hole grinding device
By designing a seamless steel pipe inner hole grinding device including inner rotary rod, helical gear and limit chuck, the problem of frequent replacement of grinding wheels or grinding heads in traditional technology is solved, and efficient repair of steel pipes with different inner diameters is achieved and improves the stability and practicality of the device.
Patent Information
- Application Number
- CN202421279122.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-06-06
AI Technical Summary
Traditional seamless steel pipe inner hole grinding technology requires frequent replacement of grinding wheels or grinding heads of different specifications, which increases operational complexity and cost and reduces grinding efficiency.
A large diameter seamless steel pipe inner hole grinding device is designed, including a mounting seat, grinding block, inner rotary rod, helical gear and threaded sleeve. Through the cooperation of the inner rotary rod and helical gear, the position adjustment of the grinding block is achieved and adapted to Steel pipes with different inner diameters are prevented from reversed by limit chucks and limit insertion rods.
The device can easily adjust the position of the grinding block, adapt to steel pipes of different inner diameters, improve grinding efficiency and effect, and ensure the stability and safety of the device.
Smart Images
Figure CN222511620U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of seamless steel pipe grinding, in particular to an inner hole grinding device for a large-diameter seamless steel pipe. Background Art
[0002] As an important industrial material, seamless steel pipes are widely used in the fields of petroleum, chemical industry, machinery, aviation, etc. With the continuous development of industrial technology, the quality and performance requirements of seamless steel pipes are getting higher and higher. Among them, the quality of the inner hole of the seamless steel pipe directly affects its use effect and safety. Therefore, grinding the inner hole of the seamless steel pipe to eliminate the defects and burrs on the surface of the inner hole and improve the smoothness and precision of the inner hole has become an indispensable part of the manufacturing process of seamless steel pipes.
[0003] At present, the inner hole grinding technology of seamless steel pipe mainly relies on traditional mechanical grinding methods, such as grinding with tools such as grinding wheels or grinding heads. However, this traditional method has many shortcomings. First, due to the different diameters of seamless steel pipes, traditional grinding devices often need to frequently replace grinding wheels or grinding heads of different specifications to adapt to steel pipes of different diameters, which not only increases the complexity and cost of operation, but also reduces the grinding efficiency.
[0004] In view of this, a large diameter seamless steel pipe inner hole grinding device is provided to overcome the above-mentioned defects. Utility Model Content
[0005] The utility model aims to provide a large-diameter seamless steel pipe inner hole grinding device to solve the problems raised in the above-mentioned background technology.
[0006] In order to solve the above technical problems, the utility model provides a large-diameter seamless steel pipe inner hole grinding device, including a mounting seat and a grinding block, a mounting frame is arranged above the mounting seat, a rotatable rotating column is installed inside the mounting frame, an inner rotating rod is installed inside the rotating column, one end of the inner rotating rod is fixedly connected to a first bevel gear, a rotatable threaded rod is installed on the outer wall of the rotating column, a threaded sleeve is threadedly connected on the outer wall of the threaded rod, one end of the threaded rod is fixedly connected to a second bevel gear, the second bevel gear is meshed with the first bevel gear, and the other end of the threaded sleeve is fixedly connected to the grinding block.
[0007] Furthermore, a telescopic rod is fixedly mounted on the outer wall of the rotating column, and the other end of the telescopic rod is fixedly connected to a grinding block. There are two telescopic rods and two grinding blocks, which are symmetrically arranged on the outer wall of the rotating column.
[0008] Furthermore, the rear end of the inner rotating rod is fixedly connected to a limit chuck, and a limit insertion rod is fixedly installed on one side of the limit chuck, and the limit insertion rod is adapted to the limit chuck.
[0009] Furthermore, a heightening frame is fixedly installed on the top surface of the mounting seat, the mounting frame is fixedly installed above the heightening frame, a first motor is fixedly installed on the top surface of the mounting frame, one side of the first motor is transmission-connected with a first pulley, a transmission belt is sleeved on the outer wall of the first pulley, a second transmission belt is fixedly installed on the outer wall of the rotating column, and the other side of the transmission belt is sleeved on the outer wall of the second transmission belt.
[0010] Furthermore, a mounting block is fixedly mounted on the top surface of the mounting seat, a second motor is fixedly mounted on the outer wall of the mounting block, a bidirectional threaded rod is transmission-connected to one side of the second motor, two moving blocks are threadedly connected to the outer wall of the bidirectional threaded rod, the two moving blocks are symmetrically arranged, and a rotatable clamping column is mounted on the top surface of the moving block.
[0011] Furthermore, a guide rod is fixedly mounted on the inner wall of the mounting block, and the movable block is slidably sleeved on the outer wall of the guide rod.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] By setting an inner rotating rod and a first bevel gear, and setting the first bevel gear to mesh with the two second bevel gears at the same time, and finally setting a threaded sleeve on the outer wall of a threaded rod connected to one side of the second bevel gear, the user can adjust the position of the grinding block fixedly installed on the top of the threaded sleeve by rotating the inner rotating rod, so that the device can grind steel pipes with different inner diameters. While the adjustment is more convenient, the grinding effect is also guaranteed, thereby increasing the practicality of the device.
[0014] By setting a limit chuck in conjunction with a limit rod, the grinding block on the device cannot be easily reversed, making the use of the device more stable and ensuring the grinding effect of the inner diameter of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 It is a three-dimensional structural schematic diagram of the rear side of the utility model;
[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;
[0018] Figure 4 It is a schematic diagram of the internal cross-sectional structure of the utility model.
[0019] In the figure: 1. mounting base; 2. heightening frame; 3. mounting frame; 4. first motor; 5. first pulley; 6. transmission belt; 7. second transmission belt; 8. rotating column; 9. grinding block; 10. telescopic rod; 11. threaded sleeve; 12. threaded rod; 13. mounting block; 14. second motor; 15. moving block; 16. bidirectional threaded rod; 17. guide rod; 18. clamping column; 19. limit chuck; 20. limit plug rod; 21. inner rotating rod; 22. first bevel gear; 23. second bevel gear. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] Embodiment 1
[0022] See also Figure 1-4 , a large diameter seamless steel pipe inner hole grinding device, comprising a mounting seat 1 and a grinding block 9, a mounting frame 3 is arranged above the mounting seat 1, a rotatable rotating column 8 is arranged inside the mounting frame 3, an inner rotating rod 21 is arranged inside the rotating column 8, one end of the inner rotating rod 21 is fixedly connected with a first bevel gear 22, a rotatable threaded rod 12 is arranged on the outer wall of the rotating column 8, a threaded sleeve 11 is threadedly connected on the outer wall of the threaded rod 12, one end of the threaded rod 12 is fixedly connected with a second bevel gear 23, the second bevel gear 23 is meshed with the first bevel gear 22, the other end of the threaded sleeve 11 is fixedly connected with the grinding block 9, an elevated frame 2 is fixedly arranged on the top surface of the mounting seat 1, the mounting frame 3 is fixedly arranged above the elevated frame 2, a first motor 4 is fixedly arranged on the top surface of the mounting frame 3, a first pulley 5 is transmission-connected to one side of the first motor 4, a transmission belt 6 is sleeved on the outer wall of the first pulley 5, a second transmission belt 7 is fixedly arranged on the outer wall of the rotating column 8, and the other side of the transmission belt 6 is sleeved on the outer wall of the second transmission belt 7.
[0023] For further information, see Figure 1 A telescopic rod 10 is fixedly installed on the outer wall of the rotating column 8, and the other end of the telescopic rod 10 is fixedly connected to the grinding block 9. The number of the telescopic rod 10 and the grinding block 9 is two, which are symmetrically arranged on the outer wall of the rotating column 8. By arranging the telescopic rod 10, when the user changes the position of the grinding block 9, the movement of the grinding block 9 is limited by the telescopic rod 10, and deflection cannot be easily caused.
[0024] For further information, see Figure 1A mounting block 13 is fixedly mounted on the top surface of the mounting seat 1, a second motor 14 is fixedly mounted on the outer wall of the mounting block 13, a bidirectional threaded rod 16 is transmission-connected to one side of the second motor 14, two moving blocks 15 are threadedly connected to the outer wall of the bidirectional threaded rod 16, the two moving blocks 15 are symmetrically arranged, a rotatable clamping column 18 is mounted on the top surface of the moving block 15, a guide rod 17 is fixedly mounted on the inner wall of the mounting block 13, and the moving block 15 is slidably sleeved on the outer wall of the guide rod 17;
[0025] In the existing grinding device, the grinding process usually requires fixing the steel pipe and then gradually adjusting the position of the steel pipe, which is very time-consuming and labor-intensive. In the present invention, by setting the threaded sleeve 11 to cooperate with the bidirectional threaded rod 16 and the moving block 15, the clamping column 18 can complete the clamping of the steel pipe. By setting the number of clamping columns 18 to four, and the four clamping columns 18 are rotatably installed on the top surface of the moving block 15, the steel pipe can be effectively fixed and can also be moved back and forth by human control, which is convenient for the user to control the grinding position of the steel pipe.
[0026] During the specific implementation, the user can first place the pipe between multiple clamping columns 18, and then start the second motor 14. After the second motor 14 is started, it will drive the bidirectional threaded rod 16 to rotate, and the rotation of the bidirectional threaded rod 16 will drive the two moving blocks 15 to move toward or relative to each other at the same time. When moving toward each other, the multiple clamping columns 18 approach each other until the steel pipe is clamped to the middle position of the multiple clamping columns 18. At this time, the steel pipe is pushed forward until the inner hole of the steel pipe covers the two grinding blocks 9 inside it.
[0027] After loading is completed, the user can turn the handle set at the rear end of the limit chuck 19 to make the inner rotating rod 21 start to rotate as a whole, and the first bevel gear 22 is fixedly installed in front of the inner rotating rod 21, so the first bevel gear 22 will also start to rotate synchronously, and the first bevel gear 22 is meshed with the two second bevel gears 23, so the second bevel gear 23 and the threaded rod 12 connected to one end of the second bevel gear 23 will be driven to rotate, and the threaded sleeve 11 is threadedly connected to the outer wall of the threaded rod 12. During the rotation of the threaded rod 12, the threaded sleeve 11 will be pushed by the thread and move to both sides. At this time, the grinding block 9 will follow the movement until the two grinding blocks 9 contact the inner hole wall of the steel pipe at the same time. At this time, the first motor 4 can be started, and the first pulley 5, the transmission belt 6, and the second transmission belt 7 are used to drive the rotating column 8 to rotate as a whole, thereby grinding the inner wall of the steel pipe.
[0028] By setting an inner rotating rod 21 and a first bevel gear 22, and setting the first bevel gear 22 to mesh with the two second bevel gears 23 at the same time, and finally setting a threaded sleeve 11 on the outer wall of a threaded rod 12 connected to one side of the second bevel gear 23, the user can adjust the position of the grinding block 9 fixedly installed on the top of the threaded sleeve 11 by rotating the inner rotating rod 21, so that the device can grind steel pipes with different inner diameters, which makes the adjustment more convenient and ensures the grinding effect, thereby increasing the practicality of the device.
[0029] Embodiment 2
[0030] Based on Example 1, please refer to Figure 2-3 A device for grinding the inner hole of a large-diameter seamless steel pipe, wherein the rear end of an inner rotating rod 21 is fixedly connected to a limiting chuck 19, and a limiting insert rod 20 is fixedly installed on one side of the limiting chuck 19, and the limiting insert rod 20 is adapted to the limiting chuck 19.
[0031] In specific implementation, during the grinding process, the two grinding blocks 9 will be affected by the impurities on the inner hole wall of the steel pipe at the same time. Under normal conditions, the grinding block 9 can maintain its own stability, but if the grinding block 9 is affected too much in the instantaneous state, it may shrink due to pressure, thereby affecting the overall grinding effect. In the present invention, if the grinding block 9 shrinks, it will inevitably drive the inner rotating rod 21 to reverse, and the rear end of the inner rotating rod 21 is fixedly connected to the limiting chuck 19, and a limiting plug rod 20 is arranged on one side of the limiting chuck 19. Because of the special reverse teeth on the surface of the limiting chuck 19, the inner rotating rod 21 can easily rotate past the limiting plug rod 20 when rotating forward, and will be stuck by the limiting plug rod 20 when reversing. After the inner rotating rod 21 cannot be reversed, the two grinding blocks 9 cannot be easily retracted.
[0032] By providing the limit chuck 19 in cooperation with the limit plug rod 20, the grinding block 9 on the device cannot be easily reversed, so that the use of the device is more stable and the grinding effect of the inner diameter of the steel pipe is guaranteed.
[0033] Working principle: The user can first place the pipe between multiple clamping columns 18, and then start the second motor 14. After the second motor 14 is started, it will drive the bidirectional threaded rod 16 to rotate, and the bidirectional threaded rod 16 will drive the two moving blocks 15 to move toward or relative to each other at the same time during the rotation. When moving toward each other, the multiple clamping columns 18 approach each other until the steel pipe is clamped to the middle position of the multiple clamping columns 18. At this time, the steel pipe is pushed forward until the inner hole of the steel pipe covers the two grinding blocks 9 inside it.
[0034] After loading is completed, the user can turn the handle set at the rear end of the limit chuck 19 to make the inner rotating rod 21 start to rotate as a whole, and the first bevel gear 22 is fixedly installed in front of the inner rotating rod 21, so the first bevel gear 22 will also start to rotate synchronously, and the first bevel gear 22 is meshed with the two second bevel gears 23, so the second bevel gear 23 and the threaded rod 12 connected to one end of the second bevel gear 23 will be driven to rotate, and the threaded sleeve 11 is threadedly connected to the outer wall of the threaded rod 12. During the rotation of the threaded rod 12, the threaded sleeve 11 will be pushed by the thread and move to both sides. At this time, the grinding block 9 will follow the movement until the two grinding blocks 9 contact the inner hole wall of the steel pipe at the same time. At this time, the first motor 4 can be started, and the first pulley 5, the transmission belt 6, and the second transmission belt 7 are used to drive the rotating column 8 to rotate as a whole, thereby grinding the inner wall of the steel pipe.
[0035] During the grinding process, the two grinding blocks 9 will be affected by the impurities on the inner hole wall of the steel pipe at the same time. Under normal conditions, the grinding block 9 can maintain its own stability. However, if the grinding block 9 is affected too much in the instantaneous state, it may shrink due to pressure, thereby affecting the overall grinding effect. In the present invention, if the grinding block 9 shrinks, it will inevitably drive the inner rotating rod 21 to reverse, and the rear end of the inner rotating rod 21 is fixedly connected to the limiting chuck 19, and a limiting plug rod 20 is arranged on one side of the limiting chuck 19. Because of the special reverse teeth on the surface of the limiting chuck 19, the inner rotating rod 21 can easily rotate past the limiting plug rod 20 when rotating forward, and will be stuck by the limiting plug rod 20 when reversing. After the inner rotating rod 21 cannot be reversed, the two grinding blocks 9 cannot be easily retracted.
[0036] By setting an inner rotating rod 21 and a first bevel gear 22, and setting the first bevel gear 22 to mesh with the two second bevel gears 23 at the same time, and finally setting a threaded sleeve 11 on the outer wall of a threaded rod 12 connected to one side of the second bevel gear 23, the user can adjust the position of the grinding block 9 fixedly installed on the top of the threaded sleeve 11 by rotating the inner rotating rod 21, so that the device can grind steel pipes with different inner diameters, which makes the adjustment more convenient and ensures the grinding effect, thereby increasing the practicality of the device.
[0037] By providing the limit chuck 19 in cooperation with the limit plug rod 20, the grinding block 9 on the device cannot be easily reversed, so that the use of the device is more stable and the grinding effect of the inner diameter of the steel pipe is guaranteed.
Claims
1. A device for grinding the inner hole of a large-diameter seamless steel pipe, comprising a mounting seat (1) and a grinding block (9), characterized in that: A mounting frame (3) is arranged above the mounting seat (1), a rotatable rotating column (8) is installed inside the mounting frame (3), an inner rotating rod (21) is installed inside the rotating column (8), one end of the inner rotating rod (21) is fixedly connected to a first bevel gear (22), a rotatable threaded rod (12) is installed on the outer wall of the rotating column (8), a threaded sleeve (11) is threadedly connected to the outer wall of the threaded rod (12), one end of the threaded rod (12) is fixedly connected to a second bevel gear (23), the second bevel gear (23) is meshed with the first bevel gear (22), and the other end of the threaded sleeve (11) is fixedly connected to a grinding block (9).
2. A large diameter seamless steel pipe inner hole grinding device as claimed in claim 1, characterized in that: A telescopic rod (10) is fixedly mounted on the outer wall of the rotating column (8), and the other end of the telescopic rod (10) is fixedly connected to a grinding block (9). The number of the telescopic rod (10) and the grinding block (9) is two, and they are symmetrically arranged on the outer wall of the rotating column (8).
3. A large diameter seamless steel pipe inner hole grinding device as claimed in claim 2, characterized in that: The rear end of the inner rotating rod (21) is fixedly connected to the limit clamp (19), and a limit insertion rod (20) is fixedly installed on one side of the limit clamp (19), and the limit insertion rod (20) is adapted to the limit clamp (19).
4. A large diameter seamless steel pipe inner hole grinding device as claimed in claim 3, characterized in that: A heightening frame (2) is fixedly mounted on the top surface of the mounting seat (1), the mounting frame (3) is fixedly mounted above the heightening frame (2), a first motor (4) is fixedly mounted on the top surface of the mounting frame (3), one side of the first motor (4) is connected to a first pulley (5) in a transmission manner, a transmission belt (6) is sleeved on the outer wall of the first pulley (5), a second transmission belt (7) is fixedly mounted on the outer wall of the rotating column (8), and the other side of the transmission belt (6) is sleeved on the outer wall of the second transmission belt (7).
5. A large diameter seamless steel pipe inner hole grinding device as claimed in claim 4, characterized in that: A mounting block (13) is fixedly mounted on the top surface of the mounting seat (1), a second motor (14) is fixedly mounted on the outer wall of the mounting block (13), a bidirectional threaded rod (16) is transmission-connected to one side of the second motor (14), two moving blocks (15) are threadedly connected to the outer wall of the bidirectional threaded rod (16), the two moving blocks (15) are symmetrically arranged, and a rotatable clamping column (18) is mounted on the top surface of the moving block (15).
6. A large diameter seamless steel pipe inner hole grinding device as claimed in claim 5, characterized in that: A guide rod (17) is fixedly mounted on the inner wall of the mounting block (13), and the moving block (15) is slidably sleeved on the outer wall of the guide rod (17).