Center line adjusting device of seamless steel tube continuous mill

Abstract

The seamless steel pipe continuous mill center line adjusting device comprises a continuous mill body, a level gauge is arranged in the center of the top of the front face of the continuous mill body, a base is arranged at the bottom of the front face of the continuous mill body, and a collimating telescope is fixedly connected to the center of the other end of the top of the base. Two electric sliding rails are fixedly connected to the top of the base and located on the back face of the collimating telescope, electric sliding blocks are slidably connected to the tops of the electric sliding rails, the tops of the two electric sliding blocks are connected with the two ends of the bottom of a flat sliding plate respectively, and a lifting mechanism is arranged at the top of the flat sliding plate; the center point of the rolling mill calibrated in the mode is high in accuracy, the wall thickness deviation of the steel pipe can be reduced to the maximum extent, the inner surface quality and the wall thickness accuracy of the gas cylinder pipe can be improved, production of the ultimate thin-wall wear-resistant pipe is facilitated, the technology is high in practicability and easy to operate, and a large amount of operation time can be saved.

Description

Technical Field

[0001] This utility model relates to the field of continuous rolling mill technology, specifically to a centerline adjustment device for a seamless steel pipe continuous rolling mill. Background Technology

[0002] Currently, there are two positioning methods used in continuous rolling mills. One method is lower slide plate positioning. Because the mill needs to slide on the slide plate every time a stand is changed, wear can easily occur, leading to mill center deviation. This deviation directly causes uneven wall thickness in the steel pipe. Frequent slide plate replacements severely impact production line capacity. Therefore, the use of lower slide plate positioning is decreasing. The other method is a combination of upper inverted V-shaped slide plate and smooth plate positioning. This method results in minimal wear from mill sliding and offers better overall performance compared to lower slide plate positioning. This is currently the most widely used positioning method. However, it is difficult to accurately adjust for deviations. Centering with this method remains a challenge for many steel pipe plants. Utility Model Content

[0003] The purpose of this invention is to provide a centerline adjustment device for a seamless steel pipe continuous rolling mill to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A centerline adjustment device for a seamless steel pipe continuous rolling mill includes a main body of the rolling mill. A level is installed at the top center of the front of the main body of the rolling mill. A base is installed at the bottom of the front of the main body of the rolling mill. A collimating telescope is fixedly connected to the center of the other end of the top of the base. Two electric slide rails are fixedly connected to the top of the base and to the back of the collimating telescope. Electric sliders are slidably connected to the top of the electric slide rails. The tops of the two electric sliders are respectively connected to the bottom ends of a smooth plate. A lifting mechanism is installed on the top of the smooth plate.

[0006] Preferably, the lifting mechanism includes a sliding plate, a top plate, a lifting plate, and V-shaped blocks. The bottoms of the two sliding blocks are respectively fixedly connected to the two sides of the top plate of the sliding plate, and the top of the sliding blocks is provided with a top plate.

[0007] Preferably, a groove is provided at the center of the back of the sliding plate, and the top and bottom centers of the groove are fixedly connected to the two ends of the lead screw, respectively. A sliding block is sleeved on the surface of the lead screw, and the sliding block is slidably connected to the groove. A lifting plate is provided between the two sliding blocks, and a V-shaped block is fixedly connected to the top center of the lifting plate.

[0008] Preferably, a first steering device is provided at the center of both ends of the top of the top plate, the bottom end of the first steering device is connected to a lead screw, a second steering device is fixedly connected to the center of the top of the top plate, a second coupling is provided at both ends of the second steering device, a first coupling is provided on the inner side of the first steering device, and a rotating shaft is provided between the first coupling and the second coupling.

[0009] Preferably, a drive motor is fixedly connected to the front end of the second steering gear, and the output end of the drive motor is connected to the rotating shaft of the second steering gear.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] The seamless steel pipe continuous rolling mill centerline adjustment device of this utility model has high accuracy in calibrating the mill center point, which can minimize the deviation of steel pipe wall thickness, improve the inner surface quality and wall thickness accuracy of gas cylinder pipe, help the production of ultra-thin wall wear-resistant pipe, and has high process practicality, is easy to operate, and can save a lot of operation time. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the lifting mechanism of this utility model.

[0014] In the diagram: 1. Main body of continuous rolling mill; 2. Level instrument; 3. Base; 4. Electric slide rail; 5. Electric slider; 6. Smooth plate; 7. Lifting mechanism; 701. Sliding plate; 702. Slide groove; 703. Top plate; 8. Lifting plate; 9. V-block; 10. Sliding block; 11. Lead screw; 12. First steering gear; 13. First coupling; 14. Rotating shaft; 15. Second coupling; 16. Second steering gear; 17. Drive motor; 18. Collimating telescope. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] Please see Figure 1 This utility model provides a technical solution: a centerline adjustment device for a seamless steel pipe continuous rolling mill, including a continuous rolling mill body 1. A level 2 is set at the center of the top front of the continuous rolling mill body 1, and a base 3 is set at the bottom front of the continuous rolling mill body 1. A collimating telescope 18 is fixedly connected to the center of the other end of the top of the base 3. It should be noted that the collimating telescope 18 is a mature existing technology, and its internal structure and working principle will not be described in detail here. Two electric slide rails 4 are fixedly connected to the top of the base 3 and the back of the collimating telescope 18. Electric sliders 5 are slidably connected to the top of the electric slide rails 4. The tops of the two electric sliders 5 are respectively connected to the bottom ends of the smooth plate 6. A lifting mechanism 7 is set on the top of the smooth plate 6.

[0019] In use, the steel pipe is first placed at the V-block 9. It should be noted that the top of the base 3 is equipped with a fixture to support and fix the steel pipe. The two ends of the fixture are respectively located at the top front end of the base 3 and the front of the continuous rolling mill body 1, with lifting mechanisms 7. After the steel pipe is fixed, the standard center point value of the entrance of the continuous rolling mill body 1 is measured by the level instrument 2. Then, the height of the V-block 9 needs to be adjusted. Next, the V-block 9 is adjusted to the standard position in the horizontal direction by the collimating telescope 18. This is done by the electric slide rail 4 driving the electric slider 5. The electric slide rail 4 is a mature existing technology, and its internal structure and working principle will not be described in detail here. Finally, the continuous rolling mill body 1 is started to work.

[0020] Please see Figure 2The lifting mechanism 7 includes a sliding plate 701, a top plate 703, a lifting plate 8, and a V-shaped block 9. The bottoms of the two sliding plates 701 are fixedly connected to the top sides of the smooth plate 6, and the top plate 703 is provided on the top of the sliding plate 701.

[0021] Furthermore, a groove 702 is provided at the center of the back of the sliding plate 701. The top and bottom centers of the groove 702 are fixedly connected to the two ends of the lead screw 11, respectively. A sliding block 10 is sleeved on the surface of the lead screw 11. The sliding block 10 is fitted and slidably connected at the groove 702. A lifting plate 8 is provided between the two sliding blocks 10. A V-shaped block 9 is fixedly connected to the top center of the lifting plate 8.

[0022] Furthermore, a first steering device 12 is provided at the center of both ends of the top of the top plate 703. The bottom end of the first steering device 12 is connected to the lead screw 11. A second steering device 16 is fixedly connected to the center of the top of the top plate 703. A second coupling 15 is provided at both ends of the second steering device 16. A first coupling 13 is provided inside the first steering device 12. A rotating shaft 14 is provided between the first coupling 13 and the second coupling 15.

[0023] Furthermore, a drive motor 17 is fixedly connected to the front end of the second steering gear 16, and the output end of the drive motor 17 is connected to the rotating shaft of the second steering gear 16.

[0024] As can be seen from the above, during use, the height of the two V-blocks 9 needs to be adjusted. Specifically, the drive motor 17 is started by the controller. The rotation of the drive motor 17 will cause the two rotating shafts 14 to rotate through the second steering gear 16. The rotation of the rotating shafts 14 will cause the lead screw 11 to rotate through the first steering gear 12. The steering gear is a mature existing technology, and its internal structure and working principle will not be described in detail here. The rotation of the lead screw 11 will cause the sliding block 10 to move up and down along the slide groove 702, thereby causing the V-blocks 9 to move up and down.

[0025] It should be noted that electromagnets are installed at both ends of the internal V-block 9. When energized, the electromagnets generate magnetic force, which effectively fixes the seamless steel pipe. The circuit structure of the electromagnets is located in... Figure 1 It should also be noted that the electromagnet is a mature existing technology, and its electrical connection relationship and specific circuit structure will not be described in detail here.

[0026] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centerline adjustment device for a seamless steel pipe continuous rolling mill, comprising the main body of the continuous rolling mill (1), characterized in that: A level (2) is provided at the top center of the front of the main body (1) of the continuous rolling mill. A base (3) is provided at the bottom of the front of the main body (1). A collimating telescope (18) is fixedly connected to the center of the other end of the top of the base (3). Two electric slide rails (4) are fixedly connected to the top of the base (3) and the back of the collimating telescope (18). An electric slider (5) is slidably connected to the top of the electric slide rails (4). The tops of the two electric sliders (5) are respectively connected to the bottom ends of the smooth plate (6). A lifting mechanism (7) is provided on the top of the smooth plate (6).

2. The seamless steel pipe continuous rolling mill centerline adjustment device according to claim 1, characterized in that: The lifting mechanism (7) includes a sliding plate (701), a top plate (703), a lifting plate (8), and a V-shaped block (9). The bottoms of the two sliding plates (701) are respectively fixedly connected to the top sides of the smooth plate (6), and the top plate (703) is provided on the top of the sliding plate (701).

3. The seamless steel pipe continuous rolling mill centerline adjustment device according to claim 2, characterized in that: The sliding plate (701) has a groove (702) at the center of its back side. The top and bottom centers of the groove (702) are fixedly connected to the two ends of the lead screw (11). A sliding block (10) is sleeved on the surface of the lead screw (11). The sliding block (10) is fitted and slidably connected to the groove (702). A lifting plate (8) is provided between the two sliding blocks (10). A V-shaped block (9) is fixedly connected to the top center of the lifting plate (8).

4. The seamless steel pipe continuous rolling mill centerline adjustment device according to claim 2 or 3, characterized in that: The top plate (703) has a first steering device (12) at the center of both ends of the top. The bottom end of the first steering device (12) is connected to the lead screw (11). The top center of the top plate (703) is fixedly connected to a second steering device (16). The two ends of the second steering device (16) are provided with second couplings (15). The inner side of the first steering device (12) is provided with a first coupling (13). A rotating shaft (14) is provided between the first coupling (13) and the second coupling (15).

5. The seamless steel pipe continuous rolling mill centerline adjustment device according to claim 4, characterized in that: The front end of the second steering gear (16) is fixedly connected to a drive motor (17), and the output end of the drive motor (17) is connected to the rotating shaft of the second steering gear (16).

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