Centrifugal steel tube annealing device

Abstract

The utility model discloses a centrifugal steel pipe annealing treatment device, include: device base, side support gyration base and side push position adjusting base, the utility model relates to the technical field of foundry production auxiliary equipment, and this device realizes the stable clamping and accurate positioning of centrifugal steel pipe through the holding type retention structure, and then utilizes the annealing structure of push -over to carry out annealing treatment to centrifugal steel pipe, in the annealing process, the holding type retention structure can make steel pipe keep continuous self -rotation, and through the controllable slow annealing process of speed, ensure that metal organization even softening, and this dynamic treatment mode can adapt to the centrifugal steel pipe of different specifications, and can pass through the heating uneven problem that the size difference brought by rotation compensation, significantly improve the compatibility of equipment to the diversified production scene, effectively expand the process application range.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for casting production, specifically a centrifugal steel pipe annealing device. Background Technology

[0002] Centrifugal steel pipes are manufactured using a centrifugal casting process: molten metal is injected into a high-speed rotating mold, where it adheres evenly to the inner wall under centrifugal force. After cooling, the pipe is formed. This process results in pipes with a dense structure and uniform wall thickness, offering greater compressive strength compared to ordinary pipes. It is particularly suitable for engineering applications requiring high strength and corrosion resistance, such as municipal drainage and fire protection systems. However, the rapid solidification process during centrifugal casting can lead to residual internal stress, increasing the pipe's brittleness. To address this issue, appropriate annealing equipment is crucial. Through precisely controlled heating and slow cooling processes, annealing effectively eliminates casting defects, softens the metal structure, and refines the grains. While retaining the high density of centrifugal steel pipes, it also enhances toughness, achieving a balance between strength and flexibility, ensuring long-term stable operation. However, general annealing equipment is not suitable for different sizes and specifications due to the characteristics of castings. While existing technologies may already address these issues, this paper aims to provide an alternative or replacement solution. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a centrifugal steel pipe annealing device, comprising: a device base, a side-support rotary base, and a side-push adjustment base. The side-support rotary base is installed on the device base, and the side-push adjustment base is installed on the device base. A gripping fixing structure is installed on the side-support rotary base, and a pushing annealing structure is installed on the device base. The pushing annealing structure comprises: a slow-moving motor, a slow-moving screw, a slow-moving module, a connecting annealing bearing ring, a connecting block on the ring, a pair of symmetrical cooling nozzles, a displacement electric push rod, a side connecting support plate, an auxiliary connecting bearing, and a support plate.

[0004] The slow-moving displacement motor is installed inside the device base, the slow-moving displacement screw is installed inside the device base and connected to the slow-moving displacement motor, the slow-moving displacement module is inserted into the device base and fitted onto the slow-moving displacement screw, the connecting annealed bearing ring is installed on the slow-moving displacement module, the connecting block on the ring is installed on the connecting annealed bearing ring, a pair of symmetrical cooling nozzles are respectively installed on the connecting block on the ring, the displacement electric push rod is installed on the side push-position adjustment base, the side connecting support plate is installed on the displacement electric push rod, the auxiliary connecting bearing is installed on the side connecting support plate, and the support plate is installed on the auxiliary connecting bearing;

[0005] It should be noted that, in the above process, the centrifugal steel pipe to be processed is fixed at one end using a gripping and fixing structure. The displacement electric push rod on the side-mounted adjustment base extends, pushing the side-connecting support plate forward. This ensures full contact between the support plate and the centrifugal steel pipe, pushing and fixing the pipe. Then, the gripping and fixing structure is activated, causing the centrifugal steel pipe to rotate above the device base using the auxiliary connecting bearing. Simultaneously, the slow-moving displacement motor rotates, causing the slow-moving displacement screw to rotate. The rotating screw, through its threaded mechanism, drives the slow-moving displacement module to slide on the device base, allowing the connecting annealing bearing ring to slide on the outside of the centrifugal steel pipe. Because the connecting annealing bearing ring is a ring-shaped structure… During the installation of the centrifugal steel pipe, the pipe is inserted into the connecting annealing bearing ring. The annealing heating element (such as an embedded heating wire or an electromagnetic induction heater) on the ring generates high temperatures on the surface of the centrifugal steel pipe, annealing it. Simultaneously, symmetrical cooling nozzles compress outside air and blow it onto the surface of the centrifugal steel pipe, rapidly cooling the annealed area. This allows for quick annealing of the centrifugal steel pipe and accommodates a wider range of pipe sizes. An emergency stop button on the base allows for immediate shutdown in emergencies, while shock absorbers on the base ensure quieter and more stable operation. An operating panel on the side-supported rotating base allows for adjustment and control of the entire device.

[0006] Preferably, the gripping fixation structure includes: a spin motor, a drive rotary plate, a load-bearing mounting frame, a clamping hydraulic rod, a clamping displacement push block, a plurality of cooperating sliding columns, a plurality of connecting rods, a plurality of bending claw rods, and a mounting cover plate.

[0007] The spin-powered motor is installed in the side-supported rotary base. The driving rotary plate is connected to the spin-powered motor. The bearing and mounting frame is installed on the driving rotary plate. The clamping hydraulic rod is installed in the bearing and mounting frame. The clamping displacement push block is connected to the clamping hydraulic rod. The clamping displacement push block is connected to several cooperative sliding columns. Several cooperative sliding columns are inserted into the mounting cover plate. Several cooperative sliding columns are connected to the connecting rod through a rotating shaft. Several bending claw rods are connected to the connecting rod through a rotating shaft. Several bending claw rods are connected to the mounting cover plate through a rotating shaft. The mounting cover plate is installed on the bearing and mounting frame.

[0008] It should be noted that, as described above, inserting the steel pipe between the three curved claw rods drives the clamping hydraulic rod on the supporting frame to retract. The retracted clamping hydraulic rod causes the clamping displacement push block to move in tandem. The moving clamping displacement push block then causes the three sliding columns to slide within the mounting cover plate, thereby pulling the corresponding connecting rod and the curved claw rod to make corresponding movements. In summary, when the clamping hydraulic rod retracts, the three curved claw rods will move closer to each other and retract inward, thus fully clamping and fixing the centrifugal steel pipe. After clamping and fixing the centrifugal steel pipe, the self-rotating motor in the side support swivel base is driven to rotate, which in turn drives the swivel plate to rotate. The rotating drive swivel plate causes the fixed and clamped centrifugal steel pipe to spin at high speed on the device base, thus facilitating annealing operations from multiple angles.

[0009] Preferably, an emergency stop button is provided on the base of the device;

[0010] Preferably, the lateral support slewing base is provided with a slewing power maintenance port;

[0011] Preferably, a shock absorber is provided on the base of the device;

[0012] Preferably, an operation panel is provided on the lateral support swivel base. Beneficial effects

[0013] This invention provides a centrifugal steel pipe annealing device. It offers the following advantages compared to existing technologies: This device achieves stable clamping and precise positioning of the centrifugal steel pipe through a gripping fixation structure. Subsequently, a pushing annealing structure is used to anneal the centrifugal steel pipe. During the annealing process, the gripping fixation structure allows the steel pipe to maintain continuous self-rotation. Simultaneously, a controllable slow annealing process ensures uniform softening of the metal structure. This dynamic processing method is adaptable to centrifugal steel pipes of different specifications and compensates for uneven heating caused by dimensional differences through rotation. This significantly improves the equipment's compatibility with diverse production scenarios and effectively expands the applicable scope of the process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of the centrifugal steel pipe annealing device described in this utility model.

[0015] Figure 2 for Figure 1 A magnified view of the letter "A" in the diagram.

[0016] In the diagram: 1. Device base; 2. Lateral support rotary base; 3. Lateral push-position adjustment base; 4. Slow-moving displacement motor; 5. Slow-moving displacement screw; 6. Slow-moving displacement module; 7. Connecting annealing bearing ring; 8. Connecting block on the ring; 9. Symmetrical cooling nozzle; 10. Displacement electric push rod; 11. Lateral connecting support plate; 12. Auxiliary connecting bearing; 13. Support plate; 14. Self-spinning power motor; 15. Drive rotary plate; 16. Bearing mounting frame; 17. Clamping power hydraulic rod; 18. Clamping displacement push block; 19. Cooperative sliding column; 20. Connecting link; 21. Bending claw rod; 22. Mounting covering plate. Detailed Implementation

[0017] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further. Example

[0019] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-2As shown, a centrifugal steel pipe annealing device includes: a device base 1, a side-supporting rotary base 2, and a side-push-positioning adjustment base 3. The side-supporting rotary base 2 is installed on the device base 1, and the side-push-positioning adjustment base 3 is installed on the device base 1. A gripping fixing structure is installed on the side-supporting rotary base 2, and a pushing annealing structure is installed on the device base 1. The pushing annealing structure includes: a slow-moving displacement motor 4, a slow-moving displacement screw 5, a slow-moving displacement module 6, a connecting annealing bearing ring 7, a connecting block on the ring 8, a pair of symmetrical cooling nozzles 9, a displacement electric push rod 10, a side connecting support plate 11, an auxiliary connecting bearing 12, and a support plate. 13; The slow-moving displacement motor 4 is installed in the device base 1, the slow-moving displacement screw 5 is installed in the device base 1 and connected to the slow-moving displacement motor 4, the slow-moving displacement module 6 is inserted into the device base 1 and fitted onto the slow-moving displacement screw 5, the connecting annealed bearing ring 7 is installed on the slow-moving displacement module 6, the ring connecting block 8 is installed on the connecting annealed bearing ring 7, a pair of symmetrical cooling nozzles 9 are respectively installed on the ring connecting block 8, the displacement electric push rod 10 is installed on the side push-position adjustment base 3, and the side connecting support plate 11 is installed on the... On the displacement electric push rod 10, the auxiliary connecting bearing 12 is mounted on the side connecting support plate 11, and the support plate 13 is mounted on the auxiliary connecting bearing 12; the gripping fixation structure includes: a spin-powered motor 14, a drive rotary plate 15, a load-bearing mounting frame 16, a clamping hydraulic rod 17, a clamping displacement push block 18, several cooperating sliding columns 19, several connecting rods 20, several bending claw rods 21, and a mounting cover plate 22; the spin-powered motor 14 is mounted in the side support rotary base 2, the drive rotary plate 15 is connected to the spin-powered motor 14, and the load-bearing mounting frame 16 is mounted on the drive rotary plate 15. The clamping hydraulic rod 17 is installed inside the bearing and mounting frame 16. The clamping displacement push block 18 is connected to the clamping hydraulic rod 17, and the clamping displacement push block 18 is connected to a plurality of the cooperating sliding columns 19. The plurality of cooperating sliding columns 19 are respectively inserted into the mounting cover plate 22, and the plurality of cooperating sliding columns 19 are respectively connected to the connecting rod 20 through a rotating shaft. The plurality of bending claw rods 21 are respectively connected to the connecting rod 20 through a rotating shaft, and the plurality of bending claw rods 21 are respectively connected to the mounting cover plate 22 through a rotating shaft. The mounting cover plate 22 is installed on the bearing and mounting frame 16.

[0020] According to the appendix Figure 1-2The centrifugal steel pipe to be processed is fixed at one end by a gripping fixing structure. The displacement electric push rod 10 on the side-mounted adjusting base 3 is driven to extend and push the side-mounted connecting support plate 11 forward, ensuring full contact between the support plate 13 and the centrifugal steel pipe, thus positioning and fixing the pipe. Then, the gripping fixing structure is driven, causing the centrifugal steel pipe to rotate above the device base 1 using the auxiliary connecting bearing 12. Simultaneously, the slow-moving displacement motor 4 is driven, causing the slow-moving displacement screw 5 to rotate. The rotating screw 5 will... The thread rotates, causing the slow-moving displacement module 6 to slide on the device base 1, which in turn causes the connecting annealing bearing ring 7 to slide on the outside of the centrifugal steel pipe. Because the connecting annealing bearing ring 7 has a ring-shaped structure, the centrifugal steel pipe is inserted through it during installation. The annealing heater (such as an embedded heating wire or an electromagnetic induction heater) installed on the connecting annealing bearing ring 7 generates high temperatures on the surface of the centrifugal steel pipe, performing an annealing operation. Simultaneously, the symmetrical cooling nozzles 9 operate, compressing external air and blowing it onto the surface of the centrifugal steel pipe, thus rapidly cooling the annealed area, allowing the centrifugal steel pipe to... The device allows for rapid annealing and is compatible with centrifugal steel pipes of various sizes. An emergency stop button on the base 1 allows for immediate shutdown in emergencies. Shock absorbers on the base 1 ensure quieter and more stable operation. An operating panel on the side-supported rotating base 2 allows for adjustment and control of the entire device. Inserting the steel pipe between the three curved claw rods 21 drives the clamping hydraulic rod 17 on the supporting frame 16, causing it to retract. The retracted clamping hydraulic rod 17 causes the clamping displacement push block 18 to move in tandem. The coordinating movement of the clamping displacement push block 18... The three sliding columns 19 slide within the covering plate 22, thereby pulling the corresponding connecting rods 20 and the curved claw rods 21 to make corresponding movements. In summary, when the clamping power hydraulic rod 17 retracts, the three curved claw rods 21 will move closer to each other and retract inward, thereby fully clamping and fixing the centrifugal steel pipe. After clamping and fixing the centrifugal steel pipe, the self-rotating power motor 14 in the side support rotary base 2 is driven to rotate, thereby driving the rotary plate 15 to rotate. The rotating rotary plate 15 will cause the centrifugal steel pipe that has been fixed and clamped to spin at high speed on the device base 1, thereby facilitating its annealing operation from multiple angles.

[0021] 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 centrifugal steel pipe annealing treatment apparatus, comprising: The device includes a base, a side-supporting rotary base, and a side-push-adjusting base. The side-supporting rotary base is mounted on the device base, and the side-push-adjusting base is mounted on the device base. A gripping fixing structure is installed on the side-supporting rotary base, and a pushing annealing structure is installed on the device base. The pushing annealing structure includes: a slow-moving motor, a slow-moving screw, a slow-moving module, a connecting annealing bearing ring, a connecting block on the ring, a pair of symmetrical cooling nozzles, a displacement electric push rod, a side connecting support plate, an auxiliary connecting bearing, and a support plate. The slow-moving displacement motor is installed inside the device base, the slow-moving displacement screw is installed inside the device base and connected to the slow-moving displacement motor, the slow-moving displacement module is inserted into the device base and fitted onto the slow-moving displacement screw, the connecting annealed bearing ring is installed on the slow-moving displacement module, the connecting block on the ring is installed on the connecting annealed bearing ring, a pair of symmetrical cooling nozzles are respectively installed on the connecting block on the ring, the displacement electric push rod is installed on the side push-adjustment base, the side connecting support plate is installed on the displacement electric push rod, the auxiliary connecting bearing is installed on the side connecting support plate, and the support plate is installed on the auxiliary connecting bearing.

2. The centrifugal steel pipe annealing device according to claim 1, characterized in that, The gripping and holding structure includes: a self-spinning motor, a drive rotary plate, a load-bearing mounting frame, a clamping hydraulic rod, a clamping displacement push block, several cooperating sliding columns, several connecting rods, several bending claw rods, and a mounting cover plate. The spin-powered motor is installed in the side-supported rotary base. The driving rotary plate is connected to the spin-powered motor. The load-bearing mounting frame is installed on the driving rotary plate. The clamping hydraulic rod is installed in the load-bearing mounting frame. The clamping displacement push block is connected to the clamping hydraulic rod, and the clamping displacement push block is connected to several cooperative sliding columns. Several cooperative sliding columns are inserted into the mounting cover plate, and several cooperative sliding columns are connected to the connecting rod through a rotating shaft. Several bending claw rods are connected to several connecting rods through a rotating shaft, and several bending claw rods are connected to the mounting cover plate through a rotating shaft. The mounting cover plate is installed on the load-bearing mounting frame.

3. The centrifugal steel pipe annealing device according to claim 2, characterized in that, An emergency stop button is provided on the base of the device.

4. The centrifugal steel pipe annealing device according to claim 3, characterized in that, The lateral support slewing base is provided with a slewing power inspection port.

5. The centrifugal steel pipe annealing device according to claim 4, characterized in that, The device base is equipped with a shock absorber.

6. The centrifugal steel pipe annealing device according to claim 5, characterized in that, An operation panel is provided on the lateral support swivel base.

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