Steel pipe inside and outside oil immersion device

By designing an internal and external oil immersion device for steel pipes using a rotating rod and rack meshing system, the problem of draining the steel pipes after oil immersion was solved, realizing automated and efficient continuous operation of the oil immersion process and improving production efficiency.

CN223980693UActive Publication Date: 2026-03-10DEBIAO PRECISION STEEL TUBE (HUBEI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

After the steel pipes are soaked in oil, the oil needs to be drained before the next batch can be processed, resulting in low oil soaking efficiency.

Method used

A device for immersing steel pipes in oil inside and outside was designed. By using a rotating rod and rack meshing system, the storage cylinder is rotated through gears, so that the process of immersing and draining the steel pipe in oil is automated, achieving full contact and efficient conversion between the steel pipe and the oil.

Benefits of technology

This improved the efficiency of oil immersion in steel pipes, enabled continuous operation of the oil immersion and draining processes, avoided waiting time, and increased production efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223980693U_ABST
    Figure CN223980693U_ABST
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Abstract

The utility model provides a device for immersing oil inside and outside a steel pipe. The device comprises a box body, a rotating rod is rotationally connected in the box body, a circular plate is fixed on the rotating rod, a group of storage barrels distributed in an annular array penetrate through the circular plate, the storage barrels are rotationally connected with the circular plate, gears are fixed on the storage barrels, and a sealing cover is arranged at one end of each storage barrel; a rack capable of moving front and back is arranged in the box body and meshed with the gear located at the lowest position, and an electric telescopic rod used for driving the rack is fixed to the box body. According to the steel pipe oil immersion device, oil immersion operation can be started to be carried out on another batch of steel pipes when oil liquid drips downwards after oil immersion operation is carried out on the steel pipes, and the oil immersion efficiency of the steel pipes is improved.
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Description

Technical Field

[0001] This utility model relates to the field of oil immersion device technology, and in particular to an oil immersion device for steel pipes inside and outside. Background Technology

[0002] The drawing process of slender precision cold-drawn seamless steel tubes is a plastic processing method that uses external force to pull the tube out of a die hole smaller than the cross-section of the billet to obtain products of corresponding shapes and sizes.

[0003] For example, Chinese utility model patent application number CN202420160895.4 discloses a precision cold-drawn seamless steel pipe internal and external oil immersion device, including an immersion tank. A support frame is fixedly connected to the back of the immersion tank, and a lift for lifting materials is set on the top of the support frame. The output end of the lift is connected to an installation cylinder via a steel wire rope. A support seat for supporting the installation cylinder is set at the bottom of the inner wall of the immersion tank. A circulation mechanism for making the oil flow is set on both sides of the immersion tank. This utility model relates to the field of drawn tube processing technology. This precision cold-drawn seamless steel pipe internal and external oil immersion device, through the cooperation between the drive mechanism, the installation cylinder, and the storage cylinder, drives the storage cylinder to rotate, thereby causing the steel pipe placed inside the storage cylinder to rotate, so that the contact surface between two adjacent steel pipes changes continuously, thereby allowing the oil to fully contact the surface of the steel pipe, avoiding blind spots in the oil immersion process, effectively improving the oil immersion effect of the steel pipe and the subsequent processing quality.

[0004] Although the above-mentioned device can make the surface and inner wall of the steel pipe fully contact with the oil, after the steel pipe is immersed in oil, it is still necessary to keep the steel pipe above the oil to drain the oil from the surface of the steel pipe. This does not allow for timely immersion of the next batch of steel pipes, thus reducing the efficiency of the steel pipe immersion process. Utility Model Content

[0005] This utility model discloses a device for internal and external oil immersion of steel pipes, which solves the problem that after the steel pipes are oiled, the oil on the surface of the steel pipes needs to be drained, and the next batch of steel pipes cannot be oiled in time, thus reducing the efficiency of steel pipe oil immersion.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A steel pipe internal and external oil immersion device includes a housing, a rotating rod rotatably connected inside the housing, a circular plate fixed on the rotating rod, a set of storage cylinders arranged in a circular array passing through the circular plate, the storage cylinders being rotatably connected to the circular plate, a gear fixed on the storage cylinder, and a sealing cap provided at one end of the storage cylinder; a rack that can move back and forth is provided inside the housing, the rack meshing with the gear located at the bottom, and an electric telescopic rod for driving the rack is fixed on the housing.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] After opening the sealing cap on the topmost storage cylinder, place the steel pipe inside. Then, rotate the lever to immerse the cylinder in the oil within the tank. Next, activate the electric telescopic rod to move the rack towards the storage cylinder. Once the rack engages with the gear on the cylinder, its continued movement will rotate the cylinder, causing the steel pipe inside to move and ensuring its surface and inner wall are fully in contact with the oil. When one cylinder is being immersed in oil, the worker can then remove the steel pipe to be immersed. The steel pipes are placed in the topmost container. Once one container is fully immersed in oil, the electric telescopic rod drives the rack away from the container, and the rotating rod continues to rotate, moving the container above the oil so that the oil on the steel pipe and the container drips down. Meanwhile, another container containing steel pipes enters the oil to begin immersing the steel pipes. This invention allows for the simultaneous immersion of another batch of steel pipes while the oil is being drained and dripping down, thus improving the efficiency of immersion. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model from a frontal sectional view;

[0011] Figure 2 This is a cross-sectional structural diagram of the storage tube of this utility model;

[0012] Figure 3 This is a side sectional view of the box body of this utility model.

[0013] In the diagram: 1. Box body; 2. Rotating rod; 21. Circular plate; 22. Motor; 3. Storage cylinder; 31. Gear; 32. Sealing cover; 33. Push plate; 4. Rack; 41. Electric telescopic rod; 5. Automatic telescopic rod; 51. Moving plate; 6. Unloading platform; 7. Rubber pad; 8. Crossbar; 81. Circular disc. Detailed Implementation

[0014] The specific content of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0015] like Figure 1 , Figure 2 and Figure 3As shown, this utility model provides a steel pipe internal and external oil immersion device, including a box body 1, a rotating rod 2 rotatably connected inside the box body 1, a circular plate 21 fixed on the rotating rod 2, a set of storage cylinders 3 arranged in a ring array passing through the circular plate 21, the storage cylinders 3 being rotatably connected to the circular plate 21, a gear 31 fixed on the storage cylinders 3, and a sealing cap 32 provided at one end of the storage cylinders 3; a rack 4 that can move back and forth is provided inside the box body 1, the rack 4 meshing with the gear 31 located at the bottom, and an electric telescopic rod 41 for driving the rack 4 is fixed on the box body 1. A set of four storage cylinders 3 are provided. Both the storage cylinders 3 and the sealing caps 32 have perforations. The sealing caps 32 can be threaded or inserted into one end of the storage cylinder 3. Workers can rotate the lever 2 to place steel pipes into the top storage cylinder 3. As the lever 2 continues to rotate, steel pipes can be placed into the set of storage cylinders 3 in sequence. When a storage cylinder 3 is immersed in oil for immersion, the worker can place the steel pipe to be immersed into the top storage cylinder 3, improving the efficiency of loading the steel pipe. Simultaneously, the electric telescopic lever 41 drives the rack 4 to move towards the storage cylinder 3. The rack 4 can then mesh with the gear 31 on the bottom storage cylinder 3. As the rack 4 continues to move, the gear 31 drives the storage cylinder 3 to rotate, facilitating the movement of the steel pipes inside and filling them with oil. One portion is in contact with the oil in the tank 1 (the oil level in the tank 1 is flush with the top of the bottommost storage cylinder 3, and the tank 1 has an oil inlet pipe and an oil outlet pipe connected to its two sides respectively); after the steel pipe in the bottommost storage cylinder 3 is fully immersed in oil, the electric telescopic rod 41 drives the rack 4 to return to its original position, moving the rack 4 away from the storage cylinder 3, and the rotating rod 2 continues to rotate 90°, moving the storage cylinder 3 containing the oil-immersed steel pipe above the oil, while the other storage cylinder 3 enters the oil. At this time, the oil-immersed steel pipe can be drained, allowing the oil on the steel pipe and storage cylinder 3 to drip downwards. After the steel pipe in the other storage cylinder 3 is fully immersed in oil, the rotating rod 2 continues to rotate 90°, bringing the previously drained storage cylinder 3 to the top, at which point the sealing cover 32 can be opened to remove the drained steel pipe; there are two circular plates 21, which are symmetrically distributed from left to right (with... Figure 1 (as shown in the image), the storage tube 3 passes through the two circular plates 21 and is rotatably connected to the circular plates 21.

[0016] like Figure 1 and Figure 2As shown, the storage tube 3 has a round hole at the end away from the sealing cover 32, and a push plate 33 is slidably connected inside the storage tube 3; an automatic telescopic rod 5 is fixed on the side of the box body 1 near the round hole on the storage tube 3, and a movable plate 51 that can pass through the round hole is fixed to the telescopic end of the automatic telescopic rod 5. When the drained storage tube 3 moves to the top of the box body 1, the sealing cover 32 is opened, and the automatic telescopic rod 5 is activated to push the push plate 33 through the round hole on the storage tube 3 and push the push plate 33 to move. The push plate 33 can then push the steel pipe toward the outside of the storage tube 3, making it easier for the staff to take out the steel pipe; the push plate 33 has a hole and a slider is fixed on the push plate 33, and the storage tube 3 has a slide that matches the slider (where the storage tube 3 has a slide, no through hole is made); the fixed end of the automatic telescopic rod 5 is fixed to the box body 1 by a fixing platform.

[0017] like Figure 1 As shown, a U-shaped unloading platform 6 is fixed to the side of the box 1 away from the moving plate 51, and a reinforcing plate is fixed between the unloading platform 6 and the box 1. When the steel pipe in the storage cylinder 3 is pushed out, it can fall directly onto the unloading platform 6, so that the workers can transfer the steel pipe; the reinforcing plate can increase the firmness of the connection between the unloading platform 6 and the box 1.

[0018] like Figure 1 As shown, a rubber pad 7 is fixed to the top of the box 1 near the unloading platform 6. When the steel pipe falls onto the unloading platform 6, the rubber pad 7 can prevent the steel pipe from directly impacting the top of the box 1 and causing damage to the steel pipe, thus providing effective protection for the steel pipe.

[0019] like Figure 1 As shown, a crossbar 8 is rotatably connected inside the housing 1, and a disc 81 is fixed on the crossbar 8. The top of the disc 81 contacts the bottom of the circular plate 21. When the circular plate 21 rotates with the rotating rod 2, friction is generated between the circular plate 21 and the disc 81, which can cause the disc 81 to drive the crossbar 8 to rotate, thereby increasing the stability of the rotating rod 2.

[0020] like Figure 1 and Figure 3 As shown, a motor 22 with a rotating shaft connected to one end of a rotating rod 2 is fixed on the housing 1; one end of a rack 4 passes through the housing 1 and is slidably connected to the housing 1; the telescopic end of an electric telescopic rod 41 passes through the housing 1 and is connected to the top of the rack 4. Starting the motor 22 drives the rotating rod 2 to rotate; the fixed end of the electric telescopic rod 41 is fixed to the housing 1. The electric telescopic rod 41 is a three-section telescopic rod, and the telescopic end of the electric telescopic rod 41 has a short rod fixed to the top of the rack 4. After starting the electric telescopic rod 41, the telescopic end of the electric telescopic rod 41 can drive the rack 4 to move forward or backward, so that the rack 4 drives the gear 31 to rotate, and the gear 31 drives the storage cylinder 3 to rotate.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for oil immersion inside and outside of a steel pipe, comprising a box (1), characterized in that: The box (1) is rotatably connected with a rotating rod (2), the rotating rod (2) is fixed with a circular plate (21), the circular plate (21) is penetrated by a group of storage cylinders (3) arranged in a ring array, the storage cylinders (3) are rotatably connected with the circular plate (21), the storage cylinders (3) are fixed with gears (31), and one end of the storage cylinders (3) is provided with a sealing cover (32); the box (1) is provided with a rack (4) which can move forward and backward, the rack (4) is engaged with the gear (31) located at the lowermost position, and the box (1) is fixed with an electric telescopic rod (41) for driving the rack (4).

2. The oil immersion device for the inner and outer surface of a steel pipe according to claim 1, characterized in that: The end of the storage cylinder (3) away from the sealing cover (32) is provided with a circular hole, and the storage cylinder (3) is slidably connected with a push plate (33); the box (1) is fixed with an automatic telescopic rod (5) near the side of the circular hole of the storage cylinder (3), and the telescopic end of the automatic telescopic rod (5) is fixed with a moving plate (51) which can pass through the circular hole.

3. The oil immersion device for the inner and outer of a steel pipe according to claim 2, characterized in that: The side of the box (1) away from the moving plate (51) is fixed with a U-shaped discharging table (6), and the discharging table (6) and the box (1) are fixed with a reinforcing plate therebetween.

4. The oil immersion device for the inner and outer surface of a steel pipe according to claim 3, characterized in that: The top of the side of the box (1) near the discharging table (6) is fixed with a rubber pad (7).

5. The oil immersion device for the inner and outer surface of a steel pipe according to claim 1, characterized in that: The box (1) is rotatably connected with a cross rod (8), the cross rod (8) is fixed with a disc (81), and the top of the disc (81) is in contact with the bottom of the circular plate (21).

6. The oil immersion device for the inner and outer surface of a steel pipe according to claim 1, characterized in that: The box (1) is fixed with a motor (22) connected with one end of the rotating rod (2); one end of the rack (4) penetrates through the box (1) and is slidably connected with the box (1), and the telescopic end of the electric telescopic rod (41) penetrates through the box (1) and is connected with the top of the rack (4).

Citation Information

Patent Citations

  • Precise cold-drawn seamless steel pipe inside and outside oil immersion device

    CN221602840U