A heat treatment apparatus for seamless steel pipe processing

Abstract

The application relates to the technical field of heat treatment equipment, and discloses a heat treatment equipment for seamless steel pipe processing, which comprises a chassis, a rotating feeding mechanism, a cleaning mechanism, a heating furnace and a lifting mechanism arranged in sequence on the top of the chassis along the feeding direction of the seamless steel pipe processing, wherein the cleaning mechanism comprises an outer frame, an electric telescopic rod, a bottom plate, an elastic reset piece, a crescent frame and brush hairs, the brush hairs are fixedly arranged on the inner arc surface of the crescent frame, the upper and lower ends of the electric telescopic rod are fixedly connected with the outer frame and the bottom plate respectively, and the upper and lower ends of the elastic reset piece are fixedly connected with the bottom plate and the crescent frame respectively. The application realizes comprehensive cleaning of the surface of the steel pipe through the synergistic effect of multiple components, has high adaptability, good cleaning effect, solves the problem of incomplete cleaning, and improves the preparation efficiency before heat treatment.

Description

Technical Field

[0001] This invention relates to the field of heat treatment equipment technology, specifically to a heat treatment equipment for processing seamless steel pipes. Background Technology

[0002] In the process of seamless steel pipe processing, heat treatment is a key process to improve the performance of steel pipes. Cleaning impurities from the surface of the steel pipe before heat treatment is an important prerequisite for ensuring the quality of heat treatment. Related cleaning mechanisms, as an important part of the heat treatment equipment for seamless steel pipe processing, are widely used in the field of steel pipe processing.

[0003] In the existing technology, steel pipe surface cleaning mostly adopts a fixed structure cleaning device. In order to adapt to steel pipes of different specifications, the common solution is to replace the cleaning parts with corresponding sizes. However, this method is cumbersome to operate, which not only increases labor costs but also delays the processing progress. Moreover, the debris generated during the cleaning process is easy to remain on the surface of the steel pipe and is difficult to remove effectively, thus affecting the subsequent heat treatment effect. Therefore, a heat treatment device for seamless steel pipe processing is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a heat treatment device for seamless steel pipe processing, thereby solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heat treatment device for processing seamless steel pipes, comprising: The base frame has a rotating feed mechanism, a cleaning mechanism, a heating furnace and a lifting mechanism arranged sequentially on its top along the seamless steel pipe processing feed direction. The cleaning mechanism includes an outer frame, an electric telescopic rod, a base plate, an elastic reset component, a crescent frame and brush bristles, with the brush bristles fixedly arranged on the inner arc surface of the crescent frame. The upper and lower ends of the electric telescopic rod are fixedly connected to the outer frame and the base plate, respectively. The upper and lower ends of the elastic reset member are fixedly connected to the base plate and the crescent frame, respectively. The elastic reset member is used to buffer the contact pressure between the brush bristles and the surface of the steel pipe during the cleaning process. Vibrators are provided on both sides of the front end of the crescent frame; Both sides of the rear of the crescent frame are provided with air guide shells, which are fixedly connected to the crescent frame. A hot air fan is fixed inside the air guide shell through the frame. Through the coordinated action of various components of the cleaning mechanism, it can achieve comprehensive cleaning of the surface of the seamless steel pipe. The elastic reset component can be adapted to steel pipes of different specifications to ensure that the bristles always adhere to the surface of the steel pipe. The vibrator and the hot air fan work together to improve the cleaning effect, avoid impurity residue, and provide a clean steel pipe surface for subsequent heat treatment processes, ensuring the quality of heat treatment. At the same time, the structure is reasonably designed and can be adapted to the overall feeding rhythm of the equipment, improving the practicality and ease of operation of the equipment. The crescent-shaped frame has nozzles equidistantly installed on the outer side of the brush bristles. A liquid storage tank is installed on the outer side of the outer frame. The liquid storage tank is connected to the nozzles through a liquid guide pipe. A booster pump is connected in series on the liquid guide pipe. The nozzles face the surface of the seamless steel pipe and are used to spray high-temperature degreasing agent.

[0006] Preferably, the rotary feed mechanism includes four sets of rotary feed components arranged symmetrically in two rows. Each set of rotary feed components is symmetrically equipped with a reducer, a first drive motor located at the input end of the reducer, and a roller located at the output end of the reducer.

[0007] Preferably, the lifting mechanism includes an electric lift, a support plate, a side frame, and a roller. The support plate is fixed to the top of the electric lift, which is used to control the lifting and lowering of the roller.

[0008] Preferably, the side frame is disposed on the front and rear sides of the upper end of the pallet, and a second drive motor is fixed on the outer side of the side frame. The output end of the second drive motor is fixedly connected to one end of the roller, and the other end of the roller is rotatably connected to the side frame.

[0009] Preferably, the middle part of the idler roller has a groove along the circumference of the idler roller, and the groove is integrally formed with the idler roller, so that the steel pipe can be automatically centered during transportation.

[0010] Preferably, the bottom of the base frame is provided with a support leg, and the support leg is welded and fixed to the base frame, and the support leg is used to support the base frame.

[0011] Preferably, the inner arc surface of the crescent frame is adapted to the outer circular surface of the seamless steel pipe, and both the upper and lower ends of the bristles are adapted to the contact area between the inner arc surface of the crescent frame and the outer circular surface of the seamless steel pipe.

[0012] Preferably, the air outlet of the air guide shell faces the inner arc surface of the crescent frame, and a guide plate is provided at the air outlet. The guide plate is inclined and is used to guide the airflow generated by the hot air blower to the contact part between the brush bristles and the steel pipe.

[0013] Compared with the prior art, the present invention provides a heat treatment device for processing seamless steel pipes, which has the following beneficial effects: This invention adjusts the height of the base plate using an electric telescopic rod. A booster pump sprays a high-temperature degreasing agent from inside the storage tank onto the exterior of the seamless steel pipe. An elastic reset component drives a crescent-shaped frame to adaptively conform to the steel pipe surface, ensuring full contact between the brush bristles and the pipe. Simultaneously, a vibrator at the front of the crescent-shaped frame enhances the cleaning force of the brush bristles, achieving efficient removal of oil and oxide scale from the steel pipe surface. A hot air blower in the rear air guide housing quickly dries the cleaned seamless steel pipe surface, achieving comprehensive cleaning of impurities. This invention offers advantages such as excellent cleaning effect and strong adaptability, solving the problem of traditional cleaning mechanisms being unable to flexibly adjust the fit according to the steel pipe specifications, leading to incomplete cleaning and affecting the quality of subsequent heat treatment. Furthermore, its simple structural design allows for coordinated operation with the overall equipment, improving the efficiency of pre-heat treatment preparation. Attached Figure Description

[0014] Figure 1 This is a front view of the overall structure of the present invention; Figure 2 This is a perspective view of the crescent-shaped frame structure of the present invention; Figure 3 This is a top view of the overall structure of the present invention.

[0015] In the diagram: 1. Base frame; 2. Support leg; 3. Reducer; 4. First drive motor; 5. Roller; 6. Outer frame; 7. Electric telescopic rod; 8. Base plate; 9. Elastic reset component; 10. Crescent frame; 11. Brush bristles; 12. Vibrator; 13. Air guide shell; 14. Hot air blower; 15. Heating furnace; 16. Electric lift; 17. Pallet; 18. Side frame; 19. Second drive motor; 20. Idler roller; 21. Groove; 22. Nozzle; 23. Liquid storage tank; 24. Booster pump; 25. Liquid guide pipeline. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] This invention provides a technical solution: a heat treatment device for processing seamless steel pipes. Please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3The system includes: a base frame 1, on the top of which, along the seamless steel pipe processing feed direction, are sequentially arranged a rotary feed mechanism, a cleaning mechanism, a heating furnace 15, and a lifting mechanism. The cleaning mechanism includes an outer frame 6, an electric telescopic rod 7, a base plate 8, an elastic reset element 9 (a compression spring), a crescent frame 10, and brush bristles 11. The brush bristles 11 are fixedly installed on the inner arc surface of the crescent frame 10. The upper and lower ends of the electric telescopic rod 7 are fixedly connected to the outer frame 6 and the base plate 8, respectively. The upper and lower ends of the elastic reset element 9 (compression spring) are fixedly connected to the base plate 8 and the crescent frame 10, respectively. The elastic reset element 9 is used to buffer the contact pressure between the brush bristles 11 and the steel pipe surface during the cleaning process. Vibrators 12 are installed on both sides of the front end of the crescent frame 10. Air guide shells 13 are installed on both sides of the rear end of the crescent frame 10, and the air guide shells 13 are bolted to the crescent frame 10. A hot air blower 14 is fixed inside the air guide shell 13 through a fixed frame. The arc surface of the frame 10 is equipped with nozzles 22 at equal intervals on the outer side of the brush bristles 11. A liquid storage tank 23 is installed on the outer side of the outer frame 6. The liquid storage tank 23 is connected to the nozzles 22 through a liquid guide pipe 25. A booster pump 24 is connected in series on the liquid guide pipe 25. The nozzles 22 face the surface of the seamless steel pipe and are used to spray high-temperature degreasing agent. Through the synergistic action of various components of the cleaning mechanism, the high-temperature degreasing agent, together with the brush bristles 11 and the vibrator 12, can achieve efficient cleaning of oil stains and oxide scale on the surface of the steel pipe, and achieve comprehensive cleaning of the surface of the seamless steel pipe. The elastic reset element 9 (compression spring) can be adapted to steel pipes of different specifications to ensure that the brush bristles 11 always adhere to the surface of the steel pipe. The vibrator 12 and the hot air blower 14 work together to improve the cleaning effect, provide a clean steel pipe surface for subsequent heat treatment processes, and ensure the quality of heat treatment. At the same time, the structural design is reasonable and can be adapted to the overall feeding rhythm of the equipment, improving the practicality and ease of operation of the equipment.

[0018] Please see Figure 1 and Figure 3 The rotary feed mechanism includes four sets of rotary feed components symmetrically arranged in two rows on the base frame 1. Each set of rotary feed components is symmetrically equipped with a reducer 3, a first drive motor 4 located at the input end of the reducer 3, and rollers 5 located at the output end of the reducer 3. Each set of rotary feed components is equipped with a frequency converter. The rollers 5 on both sides are not arranged in parallel, but are tilted at a symmetrical angle (the tilt angle can be adjusted according to the diameter of the steel pipe, generally 3°-5°). At the same time, the rotation speed of the rollers 5 on both sides is independently controlled by the frequency converter. When the rollers 5 on both sides rotate with a small speed difference, on the one hand, the friction force drives the steel pipe to make a linear feed motion along the tangent of the roller 5 (the feed speed can be adjusted by the frequency converter to adapt to the heat treatment rhythm of steel pipes of different specifications); on the other hand, the tilted rollers 5 generate a radial component force on the steel pipe, which, together with the action of friction, drives the steel pipe to rotate at a constant speed around its own axis.

[0019] Please see Figure 1 and Figure 2The lifting mechanism includes an electric lift 16, a support plate 17, a side frame 18, and a roller 20. The support plate 17 is fixed to the top of the electric lift 16, and the electric lift 16 is used to control the lifting and lowering of the roller 20.

[0020] Please see Figure 1 and Figure 2 The side frame 18 is set on the front and rear sides of the upper end of the pallet 17. A second drive motor 19 is fixed on the outer side of the side frame 18. The output end of the second drive motor 19 is fixedly connected to one end of the roller 20, and the other end of the roller 20 is rotatably connected to the side frame 18. The second drive motor 19 is used to control the rotation of the roller 20 to discharge and convey the steel pipe.

[0021] Please see Figure 1 and Figure 2 The middle part of the idler roller 20 has a groove 21 along the circumference of the idler roller 20, and the groove 21 is integrally formed with the idler roller 20. The groove 21 is used to make the steel pipe automatically center.

[0022] Please see Figure 1 and Figure 2 The bottom of the base frame 1 is provided with a support leg 2, and the support leg 2 is welded and fixed to the base frame 1. The support leg 2 is used to support the base frame 1.

[0023] Please see Figure 2 The inner arc surface of the crescent frame 10 is adapted to the outer circular surface of the seamless steel pipe. The bristles 11 are arranged along the inner arc surface of the crescent frame 10 and fully fit the outer circular surface of the seamless steel pipe. The bristles 11 fit the outer circular surface of the seamless steel pipe to clean the outside of the seamless steel pipe.

[0024] Please see Figure 2 The air outlet of the air guide shell 13 faces the inner arc surface of the crescent frame 10, and a guide plate is provided at the air outlet. The guide plate is inclined to guide the airflow generated by the hot air blower 14 to the contact part between the brush bristles 11 and the steel pipe, thereby improving cleaning efficiency.

[0025] In this solution: During use, support legs 2 support the base frame 1. The four sets of rotary feeding components of the rotary feeding mechanism operate. The first drive motor 4, controlled by the frequency converter, drives the reducer 3 to rotate the rollers 5. The rollers 5, tilted on both sides (3°-5°), rotate with a small speed difference, driving the steel pipe to feed linearly and rotate around its own axis. During the steel pipe feeding process, the electric telescopic rod 7 of the cleaning mechanism adjusts the height of the base plate 8, the elastic reset part 9 adapts to the diameter of the steel pipe, and the nozzle 22 sprays high-temperature degreasing agent before the brush bristles 11. Under the action of the booster pump 24, the nozzle 22 sprays the high-temperature degreasing agent in the storage tank 23 onto the outside of the steel pipe. The brush bristles 11 on the inner arc surface of the crescent frame 10, together with the vibrator 12, clean the surface of the steel pipe. The hot air blower 14 in the air guide shell 13 dries the steel pipe. The cleaned steel pipe enters the heating furnace 15 for heat treatment. After heat treatment, the electric lift 16 of the lifting mechanism adjusts the height of the roller 20. The groove 21 of the roller 20 makes the steel pipe automatically center. The second drive motor 19 drives the roller 20 to rotate, and the steel pipe is discharged and conveyed.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat treatment device for processing seamless steel pipes, characterized in that, include: The base frame (1) has a rotating feed mechanism, a cleaning mechanism, a heating furnace (15) and a lifting mechanism arranged sequentially on the top of the base frame (1) along the seamless steel pipe processing feed direction. The cleaning mechanism includes an outer frame (6), an electric telescopic rod (7), a base plate (8), an elastic reset component (9), a crescent frame (10) and bristles (11). The bristles (11) are fixedly arranged on the inner arc surface of the crescent frame (10). The upper and lower ends of the electric telescopic rod (7) are fixedly connected to the outer frame (6) and the base plate (8) respectively. The upper and lower ends of the elastic reset member (9) are fixedly connected to the base plate (8) and the crescent frame (10) respectively. The elastic reset member (9) is used to buffer the contact pressure between the brush bristles (11) and the surface of the steel pipe during the cleaning process. Vibrators (12) are provided on both sides of the front end of the crescent frame (10). Both sides of the rear of the crescent frame (10) are provided with air guide shells (13), and the air guide shells (13) are fixedly connected to the crescent frame (10). A hot air blower (14) is fixed inside the air guide shell (13) through the frame. The crescent-shaped frame (10) has nozzles (22) installed at equal intervals on the outer side of the bristles (11). A liquid storage tank (23) is installed on the outer side of the outer frame (6). The liquid storage tank (23) is connected to the nozzle (22) through a liquid guide pipe (25). A booster pump (24) is connected in series on the liquid guide pipe (25). The nozzle (22) faces the surface of the seamless steel pipe and is used to spray high-temperature degreasing agent.

2. The heat treatment equipment for seamless steel pipe processing according to claim 1, characterized in that: The rotary feed mechanism includes four sets of rotary feed components arranged symmetrically in two rows. Each set of rotary feed components is symmetrically provided with a reducer (3), a first drive motor (4) located at the input end of the reducer (3), and a roller (5) located at the output end of the reducer (3).

3. The heat treatment equipment for seamless steel pipe processing according to claim 1, characterized in that: The lifting mechanism includes an electric lift (16), a support plate (17), a side frame (18), and a roller (20), with the support plate (17) fixed to the top of the electric lift (16).

4. The heat treatment equipment for seamless steel pipe processing according to claim 3, characterized in that: The side frame (18) is located on the front and rear sides of the upper end of the pallet (17). A second drive motor (19) is fixed on the outer side of the side frame (18). The output end of the second drive motor (19) is fixedly connected to one end of the roller (20), and the other end of the roller (20) is rotatably connected to the side frame (18).

5. A heat treatment device for processing seamless steel pipes according to claim 4, characterized in that: The middle part of the idler roller (20) has a groove (21) along the circumference of the idler roller (20), and the groove (21) is integrally formed with the idler roller (20).

6. The heat treatment equipment for seamless steel pipe processing according to claim 1, characterized in that: The bottom of the base frame (1) is provided with a support leg (2), and the support leg (2) is welded and fixed to the base frame (1).

7. The heat treatment equipment for seamless steel pipe processing according to claim 1, characterized in that: The inner arc surface of the crescent frame (10) is adapted to the outer circular surface of the seamless steel pipe, and the bristles (11) are arranged along the inner arc surface of the crescent frame (10) and fully fit the outer circular surface of the seamless steel pipe.

8. A heat treatment device for processing seamless steel pipes according to claim 1, characterized in that: The air outlet of the air guide shell (13) faces the inner arc surface of the crescent frame (10), and a guide plate is provided at the air outlet. The guide plate is inclined and is used to guide the airflow generated by the hot air blower (14) to the contact part between the brush (11) and the steel pipe.

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