Precision heat treatment equipment for bearing steel pipes

Abstract

This utility model discloses a precision hot working device for bearing steel pipes, relating to the field of steel pipe processing technology. It includes a conveyor roller device, with a heating seat fixedly connected to one end of the side wall of the conveyor roller device and a cooling seat fixedly connected to the other end. A loading platform is fixedly connected to one end of the side wall of the heating seat through an opening. From left to right, a first conveyor belt, a heating device, and a detection device are sequentially fixedly connected to the top of the heating seat. The conveyor roller device provided by this utility model, while efficiently performing centralized heat treatment, simultaneously and rapidly cleans residual liquid from the quenched surface. This solves the problems of poor continuity and slow efficiency in precision hot working of bearing steel pipes, as well as the inability to promptly remove residual liquid from the surface of the quenched bearing steel pipes, which affects subsequent processes and product quality.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing technology, specifically to a precision hot processing device for bearing steel pipes. Background Technology

[0002] Through different heat treatment processes such as quenching, tempering, normalizing, and annealing, the metallographic structure inside the bearing steel tube can be made more uniform and dense, resulting in good comprehensive properties such as strength, toughness, and hardness. This improves the hardness and wear resistance of the steel tube, enhances its toughness, and makes the bearing steel tube less prone to deformation and cracking when subjected to complex loads.

[0003] In existing precision hot working processes for bearing steel tubes, each processing step is independent. After each step is completed, the bearing steel tube must be transferred to another device by machine before the next step can be processed. This not only increases the transfer time and equipment occupancy time, but also leads to poor continuity of the processing due to frequent transfers, making centralized processing impossible. This results in an inefficient production layout, large equipment footprint, and ineffective resource integration and utilization, increasing production costs and management difficulties. It also hinders the automation and intelligent control of the processing process, limiting further improvements in processing accuracy and quality. Furthermore, after using the liquid quenching process, a large amount of liquid remains on the surface of the bearing steel tube. If this residual liquid is not removed in time, it will affect subsequent processing steps, such as causing surface corrosion and affecting coating adhesion, increasing the product quality risks caused by residual liquid. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned precision hot working device for bearing steel pipes, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a precision hot processing device for bearing steel pipes, which solves the problems of poor continuity and slow efficiency caused by the inability to centralize processing during the precision hot processing of bearing steel pipes, and the inability to remove residual liquid on the surface of bearing steel pipes after quenching, which affects subsequent processes and product quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A precision hot working device for bearing steel pipes includes a transmission roller device. A heating seat is fixedly connected to one end of the side wall of the transmission roller device, and a cooling seat is fixedly connected to the other end of the side wall of the transmission roller device. A loading platform is fixedly connected to one end of the side wall of the heating seat through an opening. A first transmission belt, a heating device, and a detection device are fixedly connected sequentially from left to right on the top of the heating seat.

[0008] One end of the side wall of the transmission roller device is fixedly connected to a support platform through an opening. An electric push rod is fixedly connected to the top of the support platform. One end of the electric push rod is fixedly connected to a pneumatic inner support clamp. One end of the transmission roller device is fixedly connected to a reverse processing collection platform. The top of the cooling seat is fixedly connected to a cooling device, a second transmission belt, and a feeding platform from right to left. Both ends of the inner side wall of the cooling seat are fixedly connected to drying spray plate devices.

[0009] Preferably, the heating device includes a first isolation chamber, a medium-frequency power supply assembly is fixedly connected to the top of the first isolation chamber, and heating induction coils are fixedly connected to both ends of the cavity of the first isolation chamber. The input ends of the heating induction coils at both ends are fixedly connected to the output ends of the medium-frequency power supply assembly.

[0010] Preferably, the detection device includes a U-shaped bracket, with an electric roller fixedly connected between the two ends of the U-shaped bracket, and an ultrasonic flaw detector fixedly connected to the inner sidewalls of both ends of the U-shaped bracket.

[0011] Preferably, the cooling device includes a second isolation chamber, a multi-hole spray ring is fixedly connected inside the cavity of the second isolation chamber, a booster pump is fixedly connected to the top of the second isolation chamber, the output end of the booster pump is fixedly connected to the multi-hole spray ring, and an electric valve is fixedly connected to the input end of the booster pump.

[0012] Furthermore, the drying spray plate device is a hollow plate with multiple spray holes on its side wall. A fan assembly is fixedly connected to one end cavity of the cooling seat through an opening. The output ends of the fan assembly are fixedly connected to the input ends of the drying spray plate device at both ends.

[0013] Preferably, the top of the cooling seat is provided with a water collection port, the cavity of the cooling seat is provided with a water collection chamber, and the bottom output end of the cooling seat is fixedly connected with a drain valve.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model utilizes a loading platform, a first conveyor belt, a heating device, and a detection device arranged sequentially on a heating seat, and a cooling device, a second conveyor belt, and a unloading platform arranged sequentially on a cooling seat. Together with a conveyor roller device, it achieves continuous transmission of bearing steel pipes. From the moment the steel pipe is loaded, there is no need for frequent manual transfer of workpieces. The entire process from heating to cooling can be completed within the same device, greatly reducing the time loss caused by the dispersion of processes and significantly improving the continuity and production efficiency of precision hot processing of bearing steel pipes.

[0016] 2. This utility model utilizes a detection device to monitor the heating status and quality parameters of the heated steel pipe, providing timely feedback to adjust the processing technology and ensure product processing accuracy. The combination of an electric push rod and a pneumatic internal support clamp allows for precise clamping and positioning of qualified bearing steel pipes before they are fed into a cooling seat for quenching and cooling. Unqualified pipes are transferred to a reverse processing collection table via a transfer roller device, preventing them from flowing into subsequent processes. A drying spray plate device installed on the inner walls at both ends of the cooling seat quickly dries any residual liquid on the surface of the bearing steel pipe after quenching and cooling, preventing corrosion or impact on subsequent processes and further improving overall processing quality.

[0017] 3. This utility model utilizes a water collection port set at the top of the cooling seat, a water collection chamber set inside the cavity, and a drain valve connected to the bottom output end to form a drainage system. It can collect the liquid sprayed out during quenching, and discharge it through the drain valve and pipe for treatment. This effectively solves the problem of collecting and treating quenching liquid, keeps the working environment clean, and facilitates the reasonable recycling or compliant discharge of quenching liquid. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a top sectional view of the present invention.

[0021] Figure 3 This is a side sectional view of the cooling seat of this utility model.

[0022] Figure 4 This is a side sectional view of the heating base of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Conveyor roller device; 2. Heating seat; 3. Cooling seat; 4. Loading platform; 5. First conveyor belt; 6. Heating device; 7. Detection device; 8. Support platform; 9. Electric push rod; 10. Pneumatic internal support clamp; 11. Reverse processing collection platform; 12. Cooling device; 13. Second conveyor belt; 14. Unloading platform; 15. Drying spray plate device; 16. First isolation chamber; 17. Medium frequency power supply assembly; 18. Heating induction coil; 19. U-shaped bracket; 20. Electric roller; 21. Ultrasonic flaw detector; 22. Second isolation chamber; 23. Multi-hole spray ring; 24. Booster pump; 25. Electric valve; 26. Spray hole; 27. Fan assembly; 28. Water collection port; 29. ​​Water collection chamber; 30. Drain valve. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model discloses a precision hot working device for bearing steel pipes.

[0027] This utility model provides, for example Figure 1-4 The precision hot processing device for bearing steel pipe shown includes a transmission roller device 1. A heating seat 2 is fixedly connected to one end of the side wall of the transmission roller device 1, and a cooling seat 3 is fixedly connected to the other end of the side wall of the transmission roller device 1. A loading platform 4 is fixedly connected to one end of the side wall of the heating seat 2 through an opening. A first transmission belt 5, a heating device 6, and a detection device 7 are fixedly connected to the top of the heating seat 2 from left to right.

[0028] One end of the side wall of the conveyor roller device 1 is fixedly connected to a support platform 8 through an opening. An electric push rod 9 is fixedly connected to the top of the support platform 8. One end of the electric push rod 9 is fixedly connected to a pneumatic inner support clamp 10. A reverse processing collection platform 11 is fixedly connected to one end of the conveyor roller device 1 through an opening. From right to left, a cooling device 12, a second conveyor belt 13, and a discharge platform 14 are fixedly connected to the top of the cooling seat 3. Drying spray plate devices 15 are fixedly connected to the inner walls of both ends of the cooling seat 3. The loading platform 4, the first conveyor belt 5, the heating device 6, and the detection device 7 are arranged sequentially on the heating seat 2, and the cooling device 12, the second conveyor belt 13, and the discharge platform 14 are arranged sequentially on the cooling seat 3. Together with the conveyor roller device 1, continuous transmission of the bearing steel pipe is achieved. From the moment the steel pipe is loaded, the entire process from heating to cooling can be completed within the same device without frequent manual transfer of the workpiece. This significantly reduces time loss caused by dispersed processes, greatly improves the continuity and production efficiency of precision hot processing of bearing steel pipes. The detection device 7 can detect the heating status and quality parameters of the heated steel pipes in real time, and provide timely feedback to adjust the processing technology to ensure product processing accuracy. After the steel pipe is heated and passes the inspection, the combination of electric push rod 9 and pneumatic inner support clamp 10 can accurately clamp and position the qualified bearing steel pipes and send them into the cooling seat 3 for quenching and cooling. If the steel pipes are not qualified, they can be transferred to the reverse processing collection table 11 at one end through the transfer roller device 1, so that the unqualified steel pipes can be recycled in time to prevent unqualified products from flowing into subsequent processes, further improving the overall processing quality and efficiency. The drying spray plate device 15 set on the inner side wall at both ends of the cooling seat 3 can quickly dry the residual liquid on the surface of the bearing steel pipes after quenching and cooling. To avoid residual liquid corroding the surface of steel pipes, or causing quality problems in subsequent processes due to liquid residue, this method solves the problems of poor continuity and slow efficiency in precision hot working of existing bearing steel pipes, as well as the inability to remove residual liquid from the surface of bearing steel pipes after quenching, which affects subsequent processes and product quality.

[0029] To heat the steel pipes during the conveying process, such as Figure 1 , 2 As shown in Figure 4, the heating device 6 includes a first isolation chamber 16. A medium-frequency power supply assembly 17 is fixedly connected to the top of the first isolation chamber 16. Heating induction coils 18 are fixedly connected to both ends of the cavity of the first isolation chamber 16. The input ends of the heating induction coils 18 are fixedly connected to the output ends of the medium-frequency power supply assembly 17. By using the heating device 6, which consists of the first isolation chamber 16, the medium-frequency power supply assembly 17 and the heating induction coils 18, the heating induction coils 18 are controlled by the medium-frequency power supply assembly 17 to heat the steel pipe during the conveying process.

[0030] In order to detect internal damage and other issues in steel pipes, such as Figure 1 , 2As shown in Figure 4, the testing device 7 includes a U-shaped bracket 19, with an electric roller 20 fixedly connected between the two ends of the U-shaped bracket 19. An ultrasonic flaw detector 21 is fixedly connected to the inner sidewalls of both ends of the U-shaped bracket 19. By using the testing device 7, which consists of the U-shaped bracket 19, the electric roller 20, and the ultrasonic flaw detector 21, the other end of the steel pipe is received and transferred through the electric roller 20. During the transfer process, the ultrasonic flaw detectors 21 on the sidewalls of both ends simultaneously detect internal damage and other problems in the steel pipe.

[0031] To rapidly quench and cool the steel pipe, such as Figure 1-3 As shown, the cooling device 12 includes a second isolation chamber 22. A multi-hole spray ring 23 is fixedly connected inside the cavity of the second isolation chamber 22. A booster pump 24 is fixedly connected to the top of the second isolation chamber 22. The output end of the booster pump 24 is fixedly connected to the multi-hole spray ring 23. An electric valve 25 is fixedly connected to the input end of the booster pump 24. By using the cooling device 12, which consists of the second isolation chamber 22, the multi-hole spray ring 23, the booster pump 24, and the electric valve 25, quenching oil and water pipes are connected through the electric valve 25. After being pressurized by the booster pump 24, the oil and water are delivered to the cavity of the multi-hole spray ring 23. The oil and water are sprayed onto the steel pipe wall through the multi-holes opened on the inner side wall of the multi-hole spray ring 23, thereby rapidly quenching and cooling the steel pipe.

[0032] In order to quickly dry the steel pipes, such as Figure 1-3 As shown, the drying spray plate device 15 is a hollow plate with multiple spray holes 26 on its side wall. A fan assembly 27 is fixedly connected to one end cavity of the cooling seat 3 through an opening. The output ends of the fan assembly 27 are fixedly connected to the input ends of the drying spray plate device 15 at both ends. The drying spray plate device 15, which is a hollow plate with multiple spray holes 26 on its side wall, uses the fan assembly 27 to provide air source and sprays the air source through the multiple spray holes 26 to quickly dry the steel pipe.

[0033] To collect and process the liquid ejected during quenching, such as Figure 3 As shown, a water collection port 28 is provided on the top of the cooling seat 3, a water collection chamber 29 is provided inside the cavity of the cooling seat 3, and a drain valve 30 is fixedly connected to the bottom output end of the cooling seat 3. The water collection port 28, the water collection chamber 29 and the drain valve 30 form a drainage system, which can collect the liquid sprayed out during quenching and discharge it through the drain valve 30 to the pipeline for treatment.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Apparatus for precision hot working of a bearing steel tube comprising a transport roller device (1), characterised in that, A heating seat (2) is fixedly connected to one end of the side wall of the transmission roller device (1), and a cooling seat (3) is fixedly connected to the other end of the side wall of the transmission roller device (1). A loading platform (4) is fixedly connected to one end of the side wall of the heating seat (2) through an opening. A first transmission belt (5), a heating device (6) and a detection device (7) are fixedly connected to the top of the heating seat (2) from left to right. One end of the side wall of the transmission roller device (1) is fixedly connected to a support platform (8) through an opening. The top of the support platform (8) is fixedly connected to an electric push rod (9). One end of the electric push rod (9) is fixedly connected to a pneumatic inner support clamp (10). One end of the transmission roller device (1) is fixedly connected to a reverse processing collection platform (11). The top of the cooling seat (3) is fixedly connected from right to left to a cooling device (12), a second transmission belt (13), and a discharge platform (14). Both ends of the inner side wall of the cooling seat (3) are fixedly connected to a drying spray plate device (15).

2. The precision hot working device for a bearing steel tube according to claim 1, characterized by The heating device (6) includes a first isolation chamber (16), a medium frequency power supply assembly (17) is fixedly connected to the top of the first isolation chamber (16), and heating induction coils (18) are fixedly connected to both ends of the cavity of the first isolation chamber (16). The input ends of the heating induction coils (18) at both ends are fixedly connected to the output ends of the medium frequency power supply assembly (17).

3. The precision hot working device for bearing steel pipes according to claim 1, characterized in that, The detection device (7) includes a U-shaped bracket (19), with an electric roller (20) fixedly connected between the two ends of the U-shaped bracket (19), and an ultrasonic flaw detector (21) fixedly connected to the inner sidewalls of both ends of the U-shaped bracket (19).

4. The precision hot working device for bearing steel pipes according to claim 1, characterized in that, The cooling device (12) includes a second isolation chamber (22), a perforated spray ring (23) is fixedly connected inside the cavity of the second isolation chamber (22), a booster pump (24) is fixedly connected to the top of the second isolation chamber (22), the output end of the booster pump (24) is fixedly connected to the perforated spray ring (23), and an electric valve (25) is fixedly connected to the input end of the booster pump (24).

5. The precision hot working device for bearing steel pipes according to claim 1, characterized in that, The drying spray plate device (15) is a hollow plate with multiple spray holes (26) on its side wall. A fan assembly (27) is fixedly connected to one end cavity of the cooling seat (3) through an opening. The output ends of the fan assembly (27) are fixedly connected to the input ends of the drying spray plate device (15) at both ends.

6. The precision hot working device for bearing steel tubes according to claim 1, characterized in that, The cooling seat (3) has a water inlet (28) at the top, a water collection chamber (29) inside the cooling seat (3), and a drain valve (30) fixedly connected to the bottom output end of the cooling seat (3).

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