Supporting device convenient to adjust and used for hot expanding of steel pipe

Abstract

The utility model relates to the technical field of steel pipe machining, and discloses a convenient-to-adjust supporting device for steel pipe hot expanding, which comprises a base, an expanding mechanism is arranged on the right side of the top end of the base, and side plates are fixedly connected to the front end and the rear end of the top of the base. According to the supporting device convenient to adjust and used for steel pipe hot expanding, by arranging a servo motor, a two-way screw, a limiting groove and a supporting sliding roller, a steel pipe can be supported, the steel pipe can also be conveniently moved, the servo motor drives the two-way screw to rotate in a protective shell after the steel pipe is placed, a movable sleeve drives a limiting plate to approach the steel pipe through a connecting frame, and the steel pipe is conveniently expanded. The steel pipes are centered at the top ends of the supporting sliding rollers, steel pipe deviation is prevented from influencing steel pipe diameter expansion, different steel pipes can be conveniently supported and centered by adjusting the positions of the limiting plates, the steel pipes can be conveniently moved through the limiting sliding rollers in the limiting plates, and the problems that the distance between the limiting plates is inconvenient to adjust according to the requirements of steel pipe specifications, flexibility is poor and the like are solved. And the limitation is large.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing technology, specifically to a support device for hot expansion of steel pipes that is easy to adjust. Background Technology

[0002] Steel pipes are pipes manufactured through hot rolling or cold drawing processes and are widely used in many fields. Depending on the production method and application, steel pipes can be divided into various types. Some steel pipes require diameter expansion during processing. Hot expansion of steel pipes is an important process for producing large-diameter seamless steel pipes, and a support device for hot expansion is needed during this process.

[0003] Common support devices for hot expansion of steel pipes still have some problems. For example, when using steel pipe support devices, it is necessary to support steel pipes of different specifications and models, but it is inconvenient to adjust the distance between the limit plates according to the requirements of the steel pipe specifications, resulting in poor flexibility and significant limitations.

[0004] Therefore, we propose an easily adjustable support device for hot expansion of steel pipes to improve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a support device for hot expansion of steel pipes that is easy to adjust, so as to solve the problem in the background art that it is inconvenient to adjust the distance between the limiting plates according to the requirements of the steel pipe specifications, and that the device has poor flexibility and great limitations.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a support device for hot expansion of steel pipes that is easy to adjust, comprising a base, an expansion mechanism provided on the right side of the top of the base, side plates fixedly connected to the front and rear ends of the top of the base, a rotating shaft fixedly connected to the top of the side plates, a support roller movably connected to the outside of the rotating shaft, a protective shell installed on the top of the base, a servo motor installed at the front end of the protective shell, a bidirectional screw fixedly connected to the output end of the servo motor, movable sleeves provided at the front and rear ends of the bidirectional screw, connecting frames fixedly connected to the left and right sides of the movable sleeves, a limiting plate fixedly connected to the top of the connecting frame, and a limiting roller movably connected inside the limiting plate.

[0007] As a further technical solution of this utility model, the connecting frame is arranged between the supporting rollers, and the bidirectional screw is movably connected inside the protective shell.

[0008] As a further technical solution of this utility model, the front and rear ends of the bidirectional screw are machined with external threads, the threads of the front and rear ends of the bidirectional screw are opposite, and the movable sleeve and the bidirectional screw cooperate with each other.

[0009] As a further technical solution of this utility model, a housing is fixedly connected to the left and right sides of the top of the base, a second hydraulic cylinder is installed at the rear end inside the housing, a connecting plate is installed at the front end of the second hydraulic cylinder, an mounting plate is fixedly connected to the top of the connecting plate, a first hydraulic cylinder is installed at the top of the mounting plate, and a support block is fixedly connected to the bottom end of the first hydraulic cylinder.

[0010] As a further technical solution of this utility model, a groove is provided at the top of the inside of the support block, and the support block is located on the left and right sides of the bottom end of the steel pipe through the groove.

[0011] As a further technical solution of this utility model, a guide groove is fixedly connected to the bottom of the housing, a slider is fixedly connected to the bottom of the connecting plate, a rolling groove is opened at the bottom of the slider, and a ball is movable inside the rolling groove.

[0012] As a further technical solution of this utility model, the slider slides back and forth inside the guide groove, and the ball rolls inside the rolling groove.

[0013] As a further technical solution of this utility model, the protective shell has limit grooves on the left and right sides inside, and the connecting bracket slides inside the limit groove on the side closer to the middle.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the easily adjustable support device for hot expansion of steel pipe not only makes it easy to adjust the distance between the limiting plates and the position of the steel pipe for feeding, but also improves the stability of the device.

[0015] (1) By setting up a servo motor, support roller, limit plate, movable sleeve, bidirectional screw and limit groove, the support roller can not only support the steel pipe, but also facilitate the movement of the steel pipe. When the steel pipe needs to be centered at the top of the support roller, the servo motor is started. The servo motor drives the bidirectional screw to rotate inside the protective shell, so that the movable sleeve drives the limit plate to move closer to the steel pipe through the connecting frame, so that the steel pipe is centered at the top of the support roller, preventing the steel pipe from deviating and affecting the expansion of the steel pipe diameter. Adjusting the position of the limit plate can facilitate the centering of different steel pipes. The limit roller inside the limit plate can facilitate the movement of the steel pipe.

[0016] (2) By setting up a support block, a first hydraulic cylinder, a mounting plate, a second hydraulic cylinder and a connecting plate, when the steel pipe needs to be unloaded, the first hydraulic cylinder is activated. The first hydraulic cylinder drives the support block to rise, which in turn drives the steel pipe to rise. Then the second hydraulic cylinder is activated. The second hydraulic cylinder drives the first hydraulic cylinder and the support block to move through the connecting plate, so that the support block drives the steel pipe to move away from the top of the support roller, thereby facilitating the unloading of the steel pipe. This device can support another steel pipe, which can save manpower and improve work efficiency.

[0017] (3) By setting limit grooves, guide grooves, roller grooves, sliders and balls, when the movable sleeve drives the connecting frame to move, the limit groove will limit the connecting frame and the movable sleeve, improving the stability of the connecting frame and the movable sleeve. When the connecting plate moves, the slider will move inside the guide groove, improving the stability of the connecting plate movement. The balls roll inside the roller groove, which can reduce the friction between the slider and the guide groove. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a top view cross-sectional structural diagram of the protective shell of this utility model;

[0020] Figure 3 This is a side view sectional structural diagram of the shell of this utility model;

[0021] Figure 4 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle.

[0022] In the diagram: 1. Base; 2. Servo motor; 3. Protective shell; 4. Side plate; 5. Housing; 6. Support block; 7. First hydraulic cylinder; 8. Support roller; 9. Limiting plate; 10. Rotating shaft; 11. Connecting frame; 12. Diameter expansion mechanism; 13. Mounting plate; 14. Movable sleeve; 15. Limiting roller; 16. Bidirectional screw; 17. Limiting groove; 18. Second hydraulic cylinder; 19. Connecting plate; 20. Guide groove; 21. Roller groove; 22. Slider; 23. Ball bearing. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4This utility model provides an embodiment of a support device for hot expansion of steel pipes that is easy to adjust. It includes a base 1, an expansion mechanism 12 is provided on the right side of the top of the base 1, side plates 4 are fixedly connected to the front and rear ends of the top of the base 1, a rotating shaft 10 is fixedly connected to the top of the side plates 4, a support roller 8 is movably connected to the outside of the rotating shaft 10, a protective shell 3 is installed on the top of the base 1, a servo motor 2 is installed at the front end of the protective shell 3, a bidirectional screw 16 is fixedly connected to the output end of the servo motor 2, movable sleeves 14 are provided at the front and rear ends of the bidirectional screw 16, connecting frames 11 are fixedly connected to the left and right sides of the movable sleeves 14, a limiting plate 9 is fixedly connected to the top of the connecting frame 11, and a limiting roller 15 is movably connected inside the limiting plate 9.

[0025] The connecting frame 11 is set between the supporting sliding rollers 8. The bidirectional screw 16 is movably connected inside the protective shell 3. The front and rear ends of the bidirectional screw 16 are machined with external threads. The threads of the front and rear ends of the bidirectional screw 16 are opposite. The movable sleeve 14 and the bidirectional screw 16 cooperate with each other.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, the support roller 8 not only supports the steel pipe but also facilitates its movement. When the steel pipe needs to be centered at the top of the support roller 8, the servo motor 2 is activated. The servo motor 2 drives the bidirectional screw 16 to rotate inside the protective shell 3, causing the movable sleeve 14 to move the limiting plate 9 closer to the steel pipe through the connecting frame 11, thus centering the steel pipe at the top of the support roller 8 and preventing the steel pipe from shifting and affecting its diameter expansion. Adjusting the position of the limiting plate 9 can facilitate the centering of different steel pipes. The limiting roller 15 inside the limiting plate 9 facilitates the movement of the steel pipe.

[0027] A housing 5 is fixedly connected to the left and right sides of the top of the base 1. A second hydraulic cylinder 18 is installed at the rear end inside the housing 5. A connecting plate 19 is installed at the front end of the second hydraulic cylinder 18. An mounting plate 13 is fixedly connected to the top of the connecting plate 19. A first hydraulic cylinder 7 is installed at the top of the mounting plate 13. A support block 6 is fixedly connected to the bottom end of the first hydraulic cylinder 7. A groove is opened at the top of the inside of the support block 6. The support block 6 is located on the left and right sides of the bottom end of the steel pipe through the groove.

[0028] Specifically, such as Figure 1 and Figure 3 As shown, when the steel pipe needs to be unloaded, the first hydraulic cylinder 7 is activated. The first hydraulic cylinder 7 drives the support block 6 to rise, which in turn drives the steel pipe to rise. Then, the second hydraulic cylinder 18 is activated. The second hydraulic cylinder 18 drives the first hydraulic cylinder 7 and the support block 6 to move through the connecting plate 19, so that the support block 6 drives the steel pipe to move away from the top of the support roller 8, thereby facilitating the unloading of the steel pipe. This device can support another steel pipe, saving manpower and improving work efficiency.

[0029] The bottom of the housing 5 is fixedly connected to a guide groove 20, and the bottom of the connecting plate 19 is fixedly connected to a slider 22. The bottom of the slider 22 is provided with a rolling groove 21, and a ball 23 moves inside the rolling groove 21. The slider 22 slides back and forth inside the guide groove 20, and the ball 23 rolls inside the rolling groove 21. Limiting grooves 17 are provided on the left and right sides inside the protective housing 3. The side of the connecting frame 11 closest to the middle slides inside the limiting groove 17.

[0030] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when the movable sleeve 14 moves the connecting frame 11, the limiting groove 17 will limit the connecting frame 11 and the movable sleeve 14, improving the stability of the connecting frame 11 and the movable sleeve 14. When the connecting plate 19 moves, the slider 22 will move inside the guide groove 20, improving the stability of the connecting plate 19. The ball 23 rolls inside the rolling groove 21, which can reduce the friction between the slider 22 and the guide groove 20.

[0031] Working Principle: In use, the supporting roller 8 not only supports the steel pipe but also facilitates its movement. When the steel pipe needs to be centered at the top of the supporting roller 8, the servo motor 2 is activated. The servo motor 2 drives the bidirectional screw 16 to rotate inside the protective shell 3, causing the movable sleeve 14 to move towards the limiting plate 9 via the connecting frame 11, thus centering the steel pipe at the top of the supporting roller 8 and preventing pipe deviation from affecting diameter expansion. Adjusting the position of the limiting plate 9 allows for convenient centering of different steel pipes. The limiting roller 15 inside the limiting plate 9 facilitates steel pipe movement. When the movable sleeve 14 moves the connecting frame 11, the limiting groove 17 limits the connecting frame 11 and the movable sleeve 14, improving the connection frame's position. To ensure the stability of 11 and the movable sleeve 14, the first hydraulic cylinder 7 is activated when the steel pipe is unloaded. The first hydraulic cylinder 7 drives the support block 6 to rise, which in turn drives the steel pipe to rise. Then, the second hydraulic cylinder 18 is activated. The second hydraulic cylinder 18 drives the first hydraulic cylinder 7 and the support block 6 to move through the connecting plate 19, so that the support block 6 drives the steel pipe to move away from the top of the support roller 8, thereby facilitating the unloading of the steel pipe. This allows the device to support another steel pipe, saving manpower and improving work efficiency. When the connecting plate 19 moves, the slider 22 will move inside the guide groove 20, improving the stability of the movement of the connecting plate 19. The ball 23 rolls inside the roller groove 21, which can reduce the friction between the slider 22 and the guide groove 20.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An easily adjustable support device for hot expansion of steel pipes, comprising a base (1), characterized in that: An expansion mechanism (12) is provided on the right side of the top of the base (1). Side plates (4) are fixedly connected to the front and rear ends of the top of the base (1). A rotating shaft (10) is fixedly connected between the top ends of the side plates (4). A support roller (8) is movably connected to the outside of the rotating shaft (10). A protective shell (3) is installed on the top of the base (1). A servo motor (2) is installed at the front end of the protective shell (3). A bidirectional screw (16) is fixedly connected to the output end of the servo motor (2). Movable sleeves (14) are provided on the front and rear ends of the bidirectional screw (16). A connecting frame (11) is fixedly connected to the left and right sides of the movable sleeve (14). A limiting plate (9) is fixedly connected to the top of the connecting frame (11). A limiting roller (15) is movably connected inside the limiting plate (9).

2. The easily adjustable support device for hot expansion of steel pipes according to claim 1, characterized in that: The connecting frame (11) is arranged between the supporting rollers (8), and the bidirectional screw (16) is movably connected inside the protective shell (3).

3. The easily adjustable support device for hot expansion of steel pipes according to claim 1, characterized in that: The front and rear ends of the bidirectional screw (16) are machined with external threads, and the threads at the front and rear ends of the bidirectional screw (16) are opposite. The movable sleeve (14) and the bidirectional screw (16) cooperate with each other.

4. The easily adjustable support device for hot expansion of steel pipes according to claim 1, characterized in that: A housing (5) is fixedly connected to the left and right sides of the top of the base (1). A second hydraulic cylinder (18) is installed at the rear end inside the housing (5). A connecting plate (19) is installed at the front end of the second hydraulic cylinder (18). An mounting plate (13) is fixedly connected to the top of the connecting plate (19). A first hydraulic cylinder (7) is installed at the top of the mounting plate (13). A support block (6) is fixedly connected to the bottom end of the first hydraulic cylinder (7).

5. The easily adjustable support device for hot expansion of steel pipes according to claim 4, characterized in that: The top of the support block (6) is provided with a groove, and the support block (6) is located on the left and right sides of the bottom end of the steel pipe through the groove.

6. The easily adjustable support device for hot expansion of steel pipes according to claim 4, characterized in that: The bottom of the housing (5) is fixedly connected to a guide groove (20), and the bottom of the connecting plate (19) is fixedly connected to a slider (22). The bottom of the slider (22) is provided with a rolling groove (21), and a ball (23) moves inside the rolling groove (21).

7. The easily adjustable support device for hot expansion of steel pipes according to claim 6, characterized in that: The slider (22) slides back and forth inside the guide groove (20), and the ball (23) rolls inside the rolling groove (21).

8. The easily adjustable support device for hot expansion of steel pipes according to claim 1, characterized in that: The protective shell (3) has limiting grooves (17) on the left and right sides inside, and the connecting frame (11) slides inside the limiting grooves (17) on the side closer to the middle.

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