Pipe orifice preheating device for large-diameter high-strength steel pipe

Abstract

The utility model discloses a large-caliber high-strength steel pipe orifice preheating device, and particularly relates to the technical field of steel pipe processing, which comprises a base, a fixed rotating device is fixedly connected to the rear part of the upper end of the base, a steel pipe is movably connected to the inner wall of the fixed rotating device, and a preheating box is fixedly connected to the front part of the upper end of the base. The large-diameter high-strength steel pipe orifice preheating device comprises a base and a preheating box, the upper end of the preheating box is fixedly connected with a power supply, the inner wall of the preheating box is fixedly connected with a heating plate, the lower end of the base is fixedly connected with a supporting device, and the two sides of the base are fixedly connected with rolling wheels. By automatically rotating the steel pipe, it can be ensured that the steel pipe is heated more evenly in the preheating process, so that the preheating time is shortened, the production efficiency is improved, due to the fact that the clamping component has a certain adjusting range, the device can adapt to steel pipes with different diameters, supporting can be adjusted, and the device is very convenient to move and fix.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe processing, in particular to a pipe orifice preheating device for a large-diameter high-strength steel pipe. Background Art

[0002] Preheating is a crucial step in the welding of steel pipes, especially large-diameter, high-strength steel pipes. Proper preheating can reduce welding stress, prevent weld cracks, and improve weld quality. Traditional preheating methods often struggle to precisely control temperature and are inefficient for large-diameter steel pipes, failing to meet the demands of efficient, high-quality welding.

[0003] Chinese patent document CN221582473U discloses a large-diameter, high-strength steel pipe orifice preheating device. It comprises a processing table and a fixing fixture. The outer wall of the processing table is fixedly connected to a support frame, which is fixedly connected to a preheating cylinder. The inner wall of the preheating cylinder is provided with a plurality of heating tubes arranged in a circumferential array for preheating the steel pipe. The outer wall of the processing table, located on one side of the support frame, is fixedly connected to the support table. The outer wall of the support table is fixedly connected to an arc-shaped support seat. The fixing fixture is provided on one side of the arc-shaped support seat. A driving mechanism for driving the fixing fixture is provided below the fixing fixture. This utility model can fix the steel pipe during preheating, thereby preventing it from shaking and ensuring the effective preheating of the steel pipe. It can also fix steel pipes of different lengths, improving the practicality of the device.

[0004] Although the equipment in the above-mentioned literature can be pushed and fixed automatically, the structure of the equipment is relatively simple, the steel pipe is not fixed firmly enough, and the uniform heating effect of the pipe head is still insufficient, which reduces the working efficiency of the equipment. In addition, the equipment is supported only by supporting legs, which is inconvenient to move and has low stability. Utility Model Content

[0005] The main purpose of the utility model is to provide a large-diameter high-strength steel pipe orifice preheating device, which can effectively solve the above-mentioned problems.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A large-diameter high-strength steel pipe orifice preheating device comprises a base, the upper rear end of the base is fixedly connected to a fixed rotating device, the inner wall of the fixed rotating device is movably connected to a steel pipe, the upper front end of the base is fixedly connected to a preheating box, the upper end of the preheating box is fixedly connected to a power supply, the inner wall of the preheating box is fixedly connected to a heating plate, the lower end of the base is fixedly connected to a supporting device, and both sides of the base are fixedly connected to rollers;

[0008] The fixed rotating device includes a support, the lower end of which is fixedly connected to the rear portion of the upper end of the base;

[0009] The supporting device includes a groove, and the groove is opened at the lower end of the base.

[0010] Preferably, a controller is fixedly connected to one side of the fixed rotating device.

[0011] Preferably, the upper end of the support is fixedly connected to a slide groove cylinder, the inner wall of the slide groove cylinder is slidably connected to a fixed cylinder, the outer wall of the fixed cylinder is fixedly connected to a toothed plate, one side of the toothed plate is transmission-connected to a gear, and one end of the gear is fixedly connected to a motor.

[0012] Preferably, an electric telescopic splint is fixedly connected to the inner wall of the fixing cylinder.

[0013] Preferably, a slide groove is provided on the inner wall of the slide groove cylinder, and a bracket is fixedly connected to the fixed end of the motor.

[0014] Preferably, the inner wall of the groove is movably connected to a rotating plate, one end of the rotating plate is fixedly connected to a hinge seat, the upper end of the hinge seat is fixedly connected to an adjusting rod, one side of the hinge seat is fixedly connected to a telescopic rod, and one end of the telescopic rod is fixedly connected to a supporting foot.

[0015] Preferably, an adjusting head is fixedly connected to one side of the rotating plate.

[0016] Preferably, the bottom of the supporting foot is fixedly connected with an anti-slip pad.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The utility model provides a large-diameter high-strength steel pipe nozzle preheating device. The device is equipped with a fixed rotating device, which can be used to fix and rotate the steel pipe. By automatically rotating the steel pipe, it can ensure that the steel pipe is heated more evenly during the preheating process, thereby shortening the preheating time and improving production efficiency. The automated operation also reduces manual intervention, further improving the overall processing speed, and can prevent the steel pipe from falling off and avoid direct contact between operators and high-temperature areas, thereby improving the safety of the equipment. At the same time, the stable clamping and automatic rotation functions help to reduce the vibration and displacement of the steel pipe during the preheating process, thereby reducing the processing error caused by unstable factors. In addition, since the fixed rotating component has a certain degree of adjustment The range of sections can be adjusted, so it can adapt to steel pipes of different diameters and lengths, effectively improving the use range of the equipment and making it more flexible and convenient to use. The support and the slide cylinder can provide stable support, and the inner wall of the slide cylinder is provided with a slide groove, so that the fixed cylinder can rotate along it. The outer wall of the fixed cylinder is provided with a toothed plate, and the motor can drive the gear to rotate, and cooperate with the toothed plate to enable the fixed cylinder to rotate, thereby driving the steel pipe clamped by the electric telescopic splint in the fixed cylinder to rotate together, promoting uniform heating of the pipe head. The electric telescopic splint can be extended and retracted with the help of the electric telescopic rod, so that the clamping distance can be increased or reduced, which is convenient for fixing steel pipes of different diameters. A bracket is provided at the fixed end of the motor to make the equipment structure more stable.

[0019] 2. The utility model provides a large-diameter high-strength steel pipe nozzle preheating device. The device is equipped with a support device, which can be used to adjust the support, making the device very convenient to move and fix. When the device needs to be moved or stored, the support components can be freely retracted and folded, making the entire device more compact and reducing the occupied space. After arriving at the work site, the support components can be quickly unfolded and locked to provide stable support for the equipment. There is no need for a complicated installation process, which saves time and labor costs. In addition, under different ground conditions, such as uneven or inclined ground, the retractable support components can be adjusted in length to maintain the balance and stability of the equipment, ensuring that the preheating device can work normally. The stable support can effectively reduce the vibration of the equipment during operation. and shaking, reducing the risk of equipment damage or operational errors caused by instability, and also helping to ensure the quality and efficiency of steel pipe preheating, avoiding problems such as uneven heat distribution due to equipment shaking, effectively improving the working efficiency of the device, and making the equipment more practical. The support legs can adjust different fulcrums through the telescopic rod, and anti-slip pads are set at the bottom of the support legs to prevent the support from slipping. The support components can be folded through the hinged seat, so that the device can be retracted and unfolded freely. The tightness of the hinged seat can be adjusted by the adjusting rod, which is more convenient to operate. The support components can be turned by the turning plate, and an adjusting head is also set at one end to facilitate the adjustment of tightness. The device can be folded and moved conveniently with the help of rollers. The device can be unfolded and stably supported by the support legs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a structural diagram of the fixed rotating device of the utility model;

[0022] Figure 3 This is a side structural diagram of the fixed rotating device of the present utility model;

[0023] Figure 4 This is a schematic structural diagram of the support device of the present utility model;

[0024] Figure 5 It is a top structural schematic diagram of the utility model.

[0025] In the figure: 1. Base; 2. Fixed rotating device; 21. Support; 22. Slide cylinder; 23. Fixed cylinder; 24. Tooth plate; 25. Gear; 26. Motor; 27. Electric telescopic splint; 3. Steel pipe; 4. Preheating box; 5. Power supply; 6. Heating plate; 7. Support device; 71. Groove; 72. Turntable; 73. Articulated seat; 74. Adjustment rod; 75. Telescopic rod; 76. Support foot; 8. Roller. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1 and Figure 5As shown, a large-diameter high-strength steel pipe orifice preheating device comprises a base 1, and a fixed rotating device 2 is fixedly connected to the upper rear end of the base 1. The device can be used to fix and rotate the steel pipe. By automatically rotating the steel pipe, it can be ensured that the steel pipe is heated more evenly during the preheating process, thereby shortening the preheating time and improving production efficiency. The automated operation also reduces manual intervention, further improving the overall processing speed, and can prevent the steel pipe from falling off and avoid direct contact between operators and high-temperature areas, thereby improving the safety of the equipment. At the same time, the stable clamping and automatic rotation functions help to reduce the vibration and displacement of the steel pipe during the preheating process, thereby reducing the processing error caused by unstable factors. In addition, since the fixed rotating component has a certain adjustment range, it can adapt to steel pipes of different diameters and lengths, effectively improving the use range of the equipment and making it more flexible and convenient to use. The inner wall of the fixed rotating device 2 is movably connected to the steel pipe 3, the upper front end of the base 1 is fixedly connected to the preheating box 4, the upper end of the preheating box 4 is fixedly connected to the power supply 5, and the inner wall of the preheating box 4 The heating plate 6 is fixedly connected, and the lower end of the base 1 is fixedly connected to a supporting device 7, which can be used to adjust the support, making the equipment very convenient to move and fix. When the equipment needs to be moved or stored, the supporting parts can be freely retracted and folded, making the entire equipment more compact and reducing the occupied space. After arriving at the work site, the supporting parts can be quickly unfolded and locked to provide stable support for the equipment, without the need for a complicated installation process, saving time and labor costs. Moreover, under different ground conditions, such as uneven or inclined ground, the retractable supporting parts can maintain the balance and stability of the equipment by adjusting the length, ensuring that the preheating device can work normally. The stable support can effectively reduce the vibration and shaking of the equipment during operation, reduce the risk of equipment damage or operational errors caused by instability, and also help to ensure the quality and efficiency of the preheating of the steel pipe nozzle, avoid problems such as uneven heat distribution caused by equipment shaking, effectively improve the working efficiency of the device, and make the equipment more practical. Rollers 8 are fixedly connected to both sides of the base 1;

[0028] The fixed rotating device 2 includes a support 21, the lower end of the support 21 is fixedly connected to the upper rear end of the base 1, so as to facilitate the fixing and rotation of the steel pipe;

[0029] The supporting device 7 includes a groove 71, which is provided at the lower end of the base 1, providing stable support and convenient folding;

[0030] A controller is fixedly connected to one side of the fixed rotating device 2 .

[0031] like Figure 2 and Figure 3As shown, the upper end of the support 21 is fixedly connected to the chute cylinder 22, the inner wall of the chute cylinder 22 is slidably connected to the fixed cylinder 23, the outer wall of the fixed cylinder 23 is fixedly connected to the toothed plate 24, one side of the toothed plate 24 is transmission-connected to a gear 25, one end of the gear 25 is fixedly connected to a motor 26, the inner wall of the fixed cylinder 23 is fixedly connected to an electric telescopic splint 27, the inner wall of the chute cylinder 22 is provided with a chute, the fixed end of the motor 26 is fixedly connected to a bracket, the support 21 and the chute cylinder 22 can provide stable support, and the inner wall of the chute cylinder 22 is provided with a sliding groove. The outer wall of the fixed cylinder 23 is provided with a toothed plate 24, and the motor 26 can drive the gear 25 to rotate, and the toothed plate 24 cooperates with the fixed cylinder 23 to rotate, thereby driving the steel pipe clamped by the electric telescopic clamp 27 in the fixed cylinder 23 to rotate together, promoting uniform heating of the pipe head. The electric telescopic clamp 27 can be extended and retracted with the help of the electric telescopic rod, thereby increasing or reducing the clamping distance, which is convenient for fixing steel pipes of different diameters. A bracket is provided at the fixed end of the motor 26 to make the equipment structure more stable.

[0032] like Figure 4 When the cam 73 is in the closed position, the locking lever 74 is in the closed position, and the locking lever 74 is in the closed position, so that the cam 73 can be locked.

[0033] The working principle of the present utility model is as follows: the steel pipe 3 is placed into the fixed cylinder 23 through the fixed rotating device 2, and the electric telescopic splint 27 is used to reduce the clamping distance until the steel pipe 3 is clamped and fixed. The reverse operation can be quickly disassembled, and the gear 25 is driven by the motor 26 to rotate, and the fixed cylinder 23 is rotated through the tooth plate 24, thereby driving the steel pipe 3 fixed by the electric telescopic splint 27 in the fixed cylinder 23 to rotate together, promoting uniform heating of the pipe head, and using the support device 7, when it needs to be fixed, the rotating plate 72 is rotated so that the support component faces downward, and then the adjustment head is tightened, and the hinge seat 73 is used to make the support component open and close at different angles. Similarly, the adjusting rod 74 is tightened, and the fulcrum of the adjustable support foot 76 is extended and retracted by the telescopic rod 75 until the equipment is stably supported. The reverse operation makes it easy to fold and put away the support component. When the equipment needs to be moved, the support component is put away and can be easily moved by the roller 8.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A large-diameter high-strength steel pipe nozzle preheating device, comprising a base (1), characterized in that: The rear portion of the upper end of the base (1) is fixedly connected to a fixed rotating device (2), the inner wall of the fixed rotating device (2) is movably connected to a steel pipe (3), the front portion of the upper end of the base (1) is fixedly connected to a preheating box (4), the upper end of the preheating box (4) is fixedly connected to a power supply (5), the inner wall of the preheating box (4) is fixedly connected to a heating plate (6), the lower end of the base (1) is fixedly connected to a supporting device (7), and both sides of the base (1) are fixedly connected to rollers (8); The fixed rotating device (2) comprises a support (21), the lower end of the support (21) being fixedly connected to the rear portion of the upper end of the base (1); The supporting device (7) comprises a groove (71), and the groove (71) is opened at the lower end of the base (1).

2. The large-diameter high-strength steel pipe orifice preheating device according to claim 1 is characterized in that: A controller is fixedly connected to one side of the fixed rotating device (2).

3. The large-diameter high-strength steel pipe orifice preheating device according to claim 1, characterized in that: The upper end of the support (21) is fixedly connected to a chute cylinder (22), the inner wall of the chute cylinder (22) is slidably connected to a fixed cylinder (23), the outer wall of the fixed cylinder (23) is fixedly connected to a toothed plate (24), one side of the toothed plate (24) is transmission-connected to a gear (25), and one end of the gear (25) is fixedly connected to a motor (26).

4. The large-diameter high-strength steel pipe orifice preheating device according to claim 3, characterized in that: An electric telescopic clamping plate (27) is fixedly connected to the inner wall of the fixing cylinder (23).

5. The large-diameter high-strength steel pipe orifice preheating device according to claim 3, characterized in that: A chute is provided on the inner wall of the chute cylinder (22), and a bracket is fixedly connected to the fixed end of the motor (26).

6. The large-diameter high-strength steel pipe orifice preheating device according to claim 1, characterized in that: The inner wall of the groove (71) is movably connected to a rotating plate (72), one end of the rotating plate (72) is fixedly connected to a hinge seat (73), the upper end of the hinge seat (73) is fixedly connected to an adjusting rod (74), one side of the hinge seat (73) is fixedly connected to a telescopic rod (75), and one end of the telescopic rod (75) is fixedly connected to a supporting foot (76).

7. The large-diameter high-strength steel pipe orifice preheating device according to claim 6, characterized in that: An adjusting head is fixedly connected to one side of the rotating plate (72).

8. The large-diameter high-strength steel pipe orifice preheating device according to claim 6, characterized in that: The bottom of the support foot (76) is fixedly connected with an anti-skid pad.

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