Heat treatment mechanism for seamless steel pipes

Abstract

The utility model relates to the technical field of seamless steel pipe processing, concretely is the heat treatment mechanism of seamless steel pipe, including base, both sides of its top are all fixedly connected with support, and the top between two supports is fixedly connected with the electric slide rail of transverse, and the below of electric slide rail is provided with heating mechanism, the axle rest is symmetrically set up in the top of base both sides, and the top between two axle rests is provided with the turnover distance adjusting mechanism, the utility model discloses through motor no.

Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe processing technology, specifically to a heat treatment mechanism for seamless steel pipes. Background Technology

[0002] Seamless steel pipes are steel pipes made from a single piece of metal without any seams on their surface. Based on the production method, seamless pipes are classified into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, extruded pipes, and jacking pipes, etc. Seamless steel pipes are mainly used as oil and geological drilling pipes, cracking pipes for petrochemicals, boiler tubes, bearing tubes, and high-precision structural steel pipes for automobiles, tractors, and aviation. In the heat treatment process of seamless steel pipes, the pipes are typically fed into a heating device where their surface is heated.

[0003] For example, the high-temperature resistant seamless steel pipe heat treatment equipment disclosed in authorization announcement number CN221254648U includes a base. A limiting mechanism is fixedly installed on the upper surface of the base, which is used to limit and support the steel pipe. Two support frames are fixedly connected to the upper surface of the base, and a fixed frame is fixedly connected to the top of the two support frames. A movable heating component is provided on the surface of the fixed frame. With the above technical solution, the beneficial effects of this utility model are: the heating tube inside the heating hood heats the steel pipe, and the heating hood can move horizontally back and forth on the surface of the fixed frame, thereby facilitating heat treatment at different positions on the surface of the steel pipe.

[0004] Although the aforementioned patent can drive the heating cover to move horizontally, the two ends of the steel pipe are supported by limiting support wheels. Because the two ends of the steel pipe are fixed by the limiting support wheels, the heating cover cannot completely cover the two ends of the steel pipe, resulting in uneven heat treatment and affecting the overall performance. Utility Model Content

[0005] The purpose of this invention is to provide a heat treatment mechanism for seamless steel pipes to solve the problems mentioned in the background art.

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

[0007] The heat treatment mechanism for seamless steel pipes includes

[0008] The base has brackets fixedly connected to both sides of its top, and a horizontal electric slide rail is fixedly connected between the tops of the two brackets. A heating mechanism is installed below the electric slide rail.

[0009] The shaft brackets are symmetrically arranged on both sides of the top of the base, and a flipping adjustment mechanism is provided between the two shaft brackets.

[0010] Preferably, the heating mechanism includes a cylindrical heating chamber disposed below the electric slide rail, and a hanger fixedly connected to the lower end face of the electric slide rail slide block, wherein the four bottom corners of the hanger are fixedly connected to the four top corners of the cylindrical heating chamber.

[0011] Preferably, the heating mechanism further includes a heating channel laterally opened inside the cylindrical heating cavity, and a plurality of electric heating tubes evenly arranged circumferentially along the inner wall of the heating channel. A controller is fixedly connected to the top center of the cylindrical heating cavity, and the controller is electrically connected to the plurality of electric heating tubes.

[0012] Preferably, the upper and lower ends of both sides of the cylindrical heating cavity are fixedly connected to a fixed frame, a wheel frame is hinged in the middle of the fixed frame, and a V-shaped roller is rotatably connected to the other end of the wheel frame through a bearing. Electric push rods are hinged to the outer sides of both sides of the upper and lower wheel frames.

[0013] Preferably, the flipping adjustment mechanism includes a second motor fixedly connected to the outside of the right side of the shaft frame, and a spline sleeve rotatably connected to the middle of the left side of the shaft frame via a bearing. The output shaft of the second motor is fixedly connected to a spline shaft that meshes with the spline sleeve. Both the spline shaft and the spline sleeve are fixedly connected to a baffle at one end of the outer wall near the shaft frame.

[0014] Preferably, the flipping adjustment mechanism further includes guide grooves on both sides of the top of the base, and lead screws rotatably connected to the inside of the guide grooves via bearings. The two lead screws are fixedly connected to each other via a transmission shaft. The two lead screws are threaded with movable blocks on their outer sides. The movable blocks are fixedly connected to the shaft frame. A motor is fixedly connected to the outer side of the right side of the base. The output shaft of the motor is fixedly connected to the lead screw on the right side. The movable blocks slide with the guide grooves. The thread directions of the two lead screws are opposite.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The heat treatment mechanism for this seamless steel pipe uses a motor to control the synchronous rotation and spacing adjustment of the spline shaft and spline sleeve, combined with the axial limiting effect of the baffle. This ensures the stable positioning of the steel pipe during the heating process and avoids motion interference when the heating hood moves, thus solving the problem of the limiting support wheel hindering the movement of the heating hood in the prior art. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0018] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 For the present utility model Figure 1 Enlarged diagram of point B in the middle.

[0020] In the diagram: 1. Base; 2. Bracket; 3. Electric slide rail; 4. Shaft bracket; 5. Cylindrical heating chamber; 6. Hanger; 7. Heating channel; 8. Electric heating tube; 9. Controller; 10. Fixing frame; 11. Wheel frame; 12. V-shaped roller; 13. Electric push rod; 14. Motor 2; 15. Spline sleeve; 16. Spline shaft; 17. Baffle; 18. Guide groove; 19. Lead screw; 20. Drive shaft; 21. Movable block; 22. Motor 1. Detailed Implementation

[0021] 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.

[0022] like Figure 1-3 As shown, this utility model provides a technical solution:

[0023] The heat treatment mechanism for seamless steel pipes includes a base 1, with supports 2 fixedly connected to both sides of its top. A transverse electric slide rail 3 is fixedly connected between the tops of the two supports 2. A heating mechanism is installed below the electric slide rail 3. The heating mechanism includes a cylindrical heating chamber 5 located below the electric slide rail 3 and a hanger 6 fixedly connected to the lower end face of the slide of the electric slide rail 3. The four corners of the bottom end of the hanger 6 are fixedly connected to the four corners of the top end of the cylindrical heating chamber 5. The heating mechanism also includes a heating channel 7 transversely opened inside the cylindrical heating chamber 5 and several electric heating tubes 8 evenly distributed along the circumference of the inner wall of the heating channel 7. A controller 9 is fixedly connected to the middle of the top end of the cylindrical heating chamber 5. The controller 9 is electrically connected to the several electric heating tubes 8. Fixed frames 10 are fixedly connected to the upper and lower ends of both sides of the cylindrical heating chamber 5. A wheel frame 11 is hinged to the middle of the fixed frame 10. A V-shaped roller 12 is rotatably connected to the other end of the wheel frame 11 through a bearing. Electric push rods 13 are hinged to the outer sides of both upper and lower wheel frames 11. The frame 4 is symmetrically arranged on both sides of the top of the base 1. A flip-adjustment mechanism is provided between the two frame 4. The flip-adjustment mechanism includes a motor 2 14 fixedly connected to the outside of the right frame 4 and a spline sleeve 15 rotatably connected to the middle of the left frame 4 through a bearing. The output shaft of the motor 2 14 is fixedly connected to a spline shaft 16 that meshes with the spline sleeve 15. A baffle 17 is fixedly connected to the outer wall of the spline shaft 16 and the spline sleeve 15 near the end of the frame 4. The flip-adjustment mechanism also includes guide grooves 18 opened on both sides of the top of the base 1 and lead screws 19 rotatably connected to the inside of the guide grooves 18 through bearings. The two lead screws 19 are fixedly connected to each other through a transmission shaft 20. The outside of the two lead screws 19 is threaded with a movable block 21. The movable block 21 is fixedly connected to the frame 4. A motor 1 22 is fixedly connected to the outside of the right side of the base 1. The output shaft of the motor 1 22 is fixedly connected to the right lead screw 19. The movable block 21 slides with the guide groove 18. The threads of the two lead screws 19 are opposite.

[0024] In this embodiment, the synchronous rotation and spacing adjustment functions of the spline shaft 16 and spline sleeve 15 are controlled by motor 2 14. Combined with the axial limiting function of baffle 17, the stable positioning of the steel pipe during the heating process is ensured, and the motion interference when the heating cover moves is avoided. This solves the problem of the limiting support wheel hindering the movement of the heating cover in the prior art.

[0025] Working principle: First, the two side baffles 17 are driven by motor 2 14 to rotate synchronously to avoid the heating channel 7 by engaging spline shaft 16 and spline sleeve 15. Then, the steel pipe to be processed is horizontally placed into the heating channel 7. During placement, electric push rod 13 drives wheel frame 11 to adjust the spacing of V-shaped rollers 12 to clamp the outer circle of the steel pipe. Then, motor 2 14 rotates in reverse to rotate the baffles 17 back to the working position. At the same time, motor 1 22 drives lead screw 19 to rotate, which drives the two lead screws 19 with opposite threads to rotate synchronously through transmission shaft 20. This causes movable block 21 to drive shaft frame 4 to move towards each other until the baffles 17 are tightly attached to both ends of the steel pipe to complete axial positioning. After positioning, controller 9 starts electric heating tube 8 to heat the heating channel 7. Electric slide rail 3 drives cylindrical heating chamber 5 to move back and forth along the length of the steel pipe to achieve uniform heating.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat treatment mechanism for seamless steel pipes, characterized in that: include The base (1) has brackets (2) fixedly connected to both sides of its top end. A horizontal electric slide rail (3) is fixedly connected between the top ends of the two brackets (2). A heating mechanism is provided below the electric slide rail (3). A shaft bracket (4) is symmetrically arranged on both sides of the top of the base (1), and a flipping adjustment mechanism is provided between the two shaft brackets (4).

2. The heat treatment mechanism for seamless steel pipes according to claim 1, characterized in that: The heating mechanism includes a cylindrical heating chamber (5) located below the electric slide rail (3) and a hanger (6) fixedly connected to the lower end face of the slide block of the electric slide rail (3). The four corners of the bottom end of the hanger (6) are fixedly connected to the four corners of the top end of the cylindrical heating chamber (5).

3. The heat treatment mechanism for seamless steel pipes according to claim 2, characterized in that: The heating mechanism also includes a heating channel (7) that is opened laterally inside the cylindrical heating cavity (5), and a number of electric heating tubes (8) that are evenly arranged along the inner wall of the heating channel (7). A controller (9) is fixedly connected to the top center of the cylindrical heating cavity (5), and the controller (9) is electrically connected to the number of electric heating tubes (8).

4. The heat treatment mechanism for seamless steel pipes according to claim 3, characterized in that: The cylindrical heating chamber (5) is fixedly connected to the upper and lower ends of both sides by a fixed frame (10). A wheel frame (11) is hinged in the middle of the fixed frame (10). A V-shaped roller (12) is rotatably connected to the other end of the wheel frame (11) through a bearing. Electric push rods (13) are hinged to the outer sides of both sides of the upper and lower wheel frames (11).

5. The heat treatment mechanism for seamless steel pipes according to claim 1, characterized in that: The flipping and adjusting mechanism includes a second motor (14) fixedly connected to the outside of the right side of the shaft frame (4), and a spline sleeve (15) rotatably connected to the middle of the left side of the shaft frame (4) via a bearing. The output shaft of the second motor (14) is fixedly connected to a spline shaft (16) that meshes with the spline sleeve (15). Both the spline shaft (16) and the spline sleeve (15) are fixedly connected to a baffle (17) at one end of the outer wall of the shaft frame (4) near the shaft frame (4).

6. The heat treatment mechanism for seamless steel pipes according to claim 5, characterized in that: The flipping adjustment mechanism also includes guide grooves (18) on both sides of the top of the base (1) and lead screws (19) rotatably connected to the inside of the guide grooves (18) via bearings. The two lead screws (19) are fixedly connected to each other via a transmission shaft (20). The two lead screws (19) are threaded with movable blocks (21) on the outside. The movable blocks (21) are fixedly connected to the shaft frame (4). The right side of the base (1) is fixedly connected to a motor (22). The output shaft of the motor (22) is fixedly connected to the right lead screw (19). The movable blocks (21) are slidably engaged with the guide grooves (18). The threads of the two lead screws (19) are opposite.

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