Steel pipe inner wall cleaning device

Abstract

The utility model discloses a steel pipe inner wall cleaning device which comprises a machining table and a conveying assembly arranged on the machining table, a fixing pipe is fixed to the machining table, and a cleaning mechanism is arranged in the fixing pipe. The cleaning mechanism comprises an air cylinder fixed to the inner side wall of the fixing pipe, a sliding block is rotationally arranged at the piston end of the air cylinder, and the outer side wall of the sliding block is slidably connected with the inner side wall of the fixing pipe. Under the interaction of the machining table, the fixing pipe, the conveying assembly and the cleaning mechanism, the cleaning mechanism and the conveying assembly cooperate, multi-track movement of the cleaning pipe and the high-pressure gas spray head is achieved through the turning sliding opening, the high-pressure gas spray head can comprehensively spray out welding rib powder on the inner wall of a steel pipe, and efficient and uniform cleaning is guaranteed through coaxial design and stable conveying; the device can continuously clean the inner wall of the steel pipe without shutdown during operation, is simple in structure, can reduce equipment loss and labor cost, saves more time and labor, and improves the cleaning quality and the overall working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing and industrial cleaning, in particular to a steel pipe inner wall cleaning device. Background Art

[0002] During the production and manufacturing process of steel pipes, especially after the welding process is completed, impurities such as weld foam are often retained on the inner wall of the steel pipe. These weld foams not only affect the internal quality and smoothness of the steel pipe, but may also have adverse effects on subsequent use, such as increasing resistance during fluid transportation and affecting the purity of the fluid. Therefore, it is necessary to effectively clean the inner wall of the steel pipe.

[0003] At present, in the process of using a cleaning rod to clean the inner wall of a steel pipe, it is usually necessary to wait until the steel pipe transmission is stopped before reaching into the steel pipe for cleaning operations. Frequent shutdowns and starts will increase equipment losses and energy consumption, as well as increase the complexity and time cost of manual operations. This cannot meet the needs of large-scale continuous production, and is not conducive to improving production efficiency and reducing production costs. Therefore, we propose a steel pipe inner wall cleaning device to solve the above problems. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the above-mentioned background technology and proposes a steel pipe inner wall cleaning device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A steel pipe inner wall cleaning device comprises a processing table and a transmission assembly arranged on the processing table, a fixed pipe is fixed on the processing table, and a cleaning mechanism is arranged in the fixed pipe;

[0007] The cleaning mechanism includes a cylinder fixed on the inner wall of a fixed tube, a slider is rotatably provided at the piston end of the cylinder, the outer wall of the slider is slidably connected to the inner wall of the fixed tube, two direction-changing sliding openings are provided on the fixed tube, a through tube is fixed on the slider, the outer wall of the through tube is slidably connected to the inner wall of the direction-changing sliding opening, an extension tube is fixedly sleeved on the outer wall of the through tube, a cleaning tube is fixed on the extension tube, a high-pressure gas nozzle is fixed at the end of the cleaning tube, and a gas delivery tube connected to the high-pressure gas nozzle is fixed to the inner wall of the cleaning tube.

[0008] Preferably, the change-of-direction slide is composed of two horizontal slides a, two curved slides b and two vertical slides c opened on the fixed tube, the horizontal slide a, curved slide b and vertical slide c on the same side are sequentially connected to each other, and the two curved slides b are centrally symmetrical about the axis of the fixed tube.

[0009] Preferably, the conveying assembly consists of a driving motor fixed on a processing table and a plurality of indented conveying cylinders rotatably arranged on an inner groove of the processing table, wherein a same steel pipe is laid on the plurality of indented conveying cylinders, the output shaft of the driving motor is fixedly connected to the end of a conveying roller of one of the indented conveying cylinders, and the conveying rollers of two adjacent indented conveying cylinders are connected by a chain drive.

[0010] Preferably, the end of the gas delivery tube passes through the extension tube and the through tube in sequence and extends outward.

[0011] Preferably, a through hole is provided on the sliding block, and the outer wall of the through tube and the inner wall of the through hole are fixedly connected.

[0012] Preferably, the slider is cylindrical in shape, and the slider and the fixed tube are coaxially arranged.

[0013] Preferably, the two direction-changing sliding openings are centrally symmetrical with respect to the axis of the fixed pipe.

[0014] Preferably, when the outer side wall of the through-tube slides on the inner side wall of the horizontal sliding opening a, the cleaning tube and the high-pressure gas nozzle are both coaxially arranged with the steel pipe.

[0015] Preferably, the axis of the horizontal sliding opening a is arranged parallel to the axis direction of the steel pipe during the conveying process.

[0016] Preferably, the extension tube and the cleaning tube are both located above the conveying assembly.

[0017] The beneficial effects of the utility model are:

[0018] Under the interaction of the processing table, fixed pipe, transmission component and cleaning mechanism, the cleaning mechanism and transmission component work together to realize multi-track movement of the cleaning pipe and the high-pressure gas nozzle through the change-of-direction sliding mouth, so that the high-pressure gas nozzle can fully spray out the weld foam on the inner wall of the steel pipe. The coaxial design and stable transmission ensure efficient and uniform cleaning, reduce local cleaning differences, and continuously clean the inner wall of the steel pipe without stopping during operation. The device has a simple structure, can reduce equipment loss and labor costs, save time and effort, and improve the cleaning quality and overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a steel pipe inner wall cleaning device proposed by the utility model;

[0020] Figure 2 This is a structural schematic diagram of a direction-changing sliding port in a steel pipe inner wall cleaning device proposed by the utility model;

[0021] Figure 3 It is a side cross-sectional view of a fixed pipe in a steel pipe inner wall cleaning device proposed by the utility model;

[0022] Figure 4 The utility model is a side sectional view of a cleaning pipe in a steel pipe inner wall cleaning device.

[0023] In the figure: 1. Processing table; 2. Fixed pipe; 3. Cylinder; 4. Slider; 5. Direction-changing slide; 6. Through pipe; 7. Extension pipe; 8. Cleaning pipe; 9. High-pressure gas nozzle; 10. Gas delivery pipe; 11. Transmission assembly. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-4 A steel pipe inner wall cleaning device includes a processing table 1 and a conveying assembly 11 arranged on the processing table 1, a fixed tube 2 is fixed on the processing table 1, and the conveying assembly 11 is composed of a driving motor fixed on the processing table 1 and a plurality of indented conveying cylinders rotatably arranged on the inner groove of the processing table 1, wherein the same steel pipe is laid on the plurality of indented conveying cylinders, the output shaft of the driving motor is fixedly connected to the end of the conveying roller of one of the indented conveying cylinders, and the conveying rollers of two adjacent indented conveying cylinders are connected by chain transmission.

[0026] It is further explained that the conveying component 11 can provide stable support and transmission power for the steel pipe. The design of the recessed conveying cylinder can better fix the steel pipe to prevent it from rolling or shifting during the conveying process, ensuring that the steel pipe always moves in a predetermined direction, thereby ensuring that the cleaning tube 8 and the nozzle can accurately align with the inner wall of the steel pipe for cleaning operations. The conveying component 11 is a common means in the prior art and will not be elaborated on here.

[0027] To further illustrate, for example, in a long-term continuous cleaning operation, the conveying assembly 11 can stably convey the steel pipes one by one to the cleaning position in sequence, and the cleaning effect will not be affected by the position deviation of the steel pipes, thereby improving the reliability and stability of the entire cleaning process.

[0028] A cleaning mechanism is provided in the fixed tube 2; the cleaning mechanism comprises a cylinder 3 fixed on the inner wall of the fixed tube 2, a slider 4 is rotatably arranged at the piston end of the cylinder 3, the outer wall of the slider 4 is slidably connected to the inner wall of the fixed tube 2, two direction-changing slides 5 are provided on the fixed tube 2, the direction-changing slides 5 are composed of two horizontal slides a, two curved slides b and two vertical slides c provided on the fixed tube 2, the horizontal slides a, curved slides b and vertical slides c on the same side are sequentially connected to each other, and the two curved slides b are centrally symmetrical with respect to the axis of the fixed tube 2.

[0029] Further explanation, this design allows the through-tube 6 to be divided into three states when sliding on the inner wall of the direction-changing sliding opening 5:

[0030] The first state: when the through-tube 6 slides on the inner wall of the horizontal sliding opening a, the cleaning tube 8 can drive the high-pressure gas nozzle 9 to move inside the steel pipe along the axis of the steel pipe, and the moving trajectory is a straight line;

[0031] The second state: when the through-tube 6 slides on the inner wall of the curved sliding opening b, the cleaning tube 8 can drive the high-pressure gas nozzle 9 to move, and the moving trajectory is a spiral line;

[0032] The third state: when the through-tube 6 slides on the inner wall of the vertical sliding opening c, the cleaning tube 8 can drive the high-pressure gas nozzle 9 to move vertically upward and continue to move horizontally, and the moving trajectory is a straight line.

[0033] The purpose of such arrangement is to facilitate the cleaning pipe 8 and the high-pressure gas nozzle 9 to enter and exit the steel pipe.

[0034] The two direction-changing sliding openings 5 ​​are centrally symmetrical with respect to the axis of the fixed pipe 2 .

[0035] It is further explained that this special design enables the cleaning pipe 8 and the nozzle to be flexibly changed in different directions.

[0036] A through tube 6 is fixed on the slider 4, a through hole is opened on the slider 4, the outer wall of the through tube 6 and the inner wall of the through hole are fixedly connected, the outer wall of the through tube 6 and the inner wall of the changing slide 5 are slidably connected, an extension tube 7 is fixedly sleeved on the outer wall of the through tube 6, a cleaning tube 8 is fixed on the extension tube 7, a high-pressure gas nozzle 9 is fixed at the end of the cleaning tube 8, and a gas delivery tube 10 connected with the high-pressure gas nozzle 9 is fixed on the inner wall of the cleaning tube 8.

[0037] It is further explained that through the synergistic effect of the cleaning mechanism and the conveying assembly 11, as well as the careful design of the internal components of the cleaning mechanism, such as the flexible change of direction of the change-direction slide 5, the coaxial positioning of the nozzle and the injection of high-pressure gas, the inner wall of the steel pipe can be cleaned comprehensively, efficiently and evenly to remove various dirt and impurities, thereby greatly improving the cleaning quality of the inner wall of the steel pipe.

[0038] The extension tube 7 and the cleaning tube 8 are both located above the conveying assembly 11 .

[0039] It is further explained that this position design enables the cleaning pipe 8 to better cover and clean the steel pipe during the cleaning process, thereby avoiding interference with the conveying component 11.

[0040] When the outer wall of the through-tube 6 slides on the inner wall of the horizontal sliding opening a, the cleaning tube 8 and the high-pressure gas nozzle 9 are both coaxially arranged with the steel pipe.

[0041] It is further explained that this coaxial design enables the high-pressure gas to be sprayed concentratedly onto the central area of ​​the inner wall of the steel pipe, which can more effectively impact and clean some stubborn dirt in the central area.

[0042] It is further explained that the coaxial setting also ensures the uniformity of cleaning, so that the entire inner wall of the steel pipe can be cleaned with a relatively consistent force, improving the cleaning quality and avoiding excessive or insufficient local cleaning.

[0043] The slider 4 is cylindrical in shape, and the slider 4 and the fixed tube 2 are coaxially arranged.

[0044] To further illustrate, when the cylindrical slider 4 slides in the fixed tube 2, the friction resistance with the tube wall can be reduced, making the movement smoother.

[0045] The end of the gas delivery pipe 10 passes through the extension pipe 7 and the through pipe 6 in sequence and extends outward.

[0046] It is further explained that this layout enables the gas to be smoothly transported to the high-pressure gas nozzle 9, reducing the resistance and energy loss of the gas during the transportation process.

[0047] The axis of the horizontal slide a is arranged parallel to the axis direction of the steel pipe during the transmission process.

[0048] It is further explained that when the outer wall of the through-tube 6 slides on the inner wall of the horizontal sliding opening a, the cleaning tube 8 and the high-pressure gas nozzle 9 are both coaxially arranged with the steel pipe. This design enables the nozzle to be accurately aimed at the central area of ​​the inner wall of the steel pipe in a specific cleaning stage, thereby achieving concentrated and efficient cleaning.

[0049] The functional principle of the utility model can be explained through the following operation modes:

[0050] 1. Start the transmission component 11

[0051] Turn on the power of the driving motor, start the motor, and observe whether the rotation direction of the recessed conveyor cylinder is correct. It should move toward the steel pipe and toward the direction of the cleaning mechanism.

[0052] Check the placement of steel pipes on multiple recessed conveyor drums to ensure that the steel pipes can move smoothly with the rotation of the conveyor drums without abnormal phenomena such as jumping and rolling. At the same time, pay attention to the coordinated work between two adjacent recessed conveyor drums. The chain drive should be smooth without abnormal noise or shaking.

[0053] 2. Start the cleaning mechanism

[0054] After the transmission component 11 runs stably, the piston end of the start cylinder 3 is contracted. When the slider 4 drives the through pipe 6 to slide in the change-of-direction slide 5, the initial state of the slider 4 is located in the middle section of the fixed pipe 2, allowing the transmission component 11 to continue to drive the steel pipe to move toward the high-pressure gas nozzle 9. The piston end of the cylinder 3 will drive the high-pressure gas nozzle 9 to move toward the steel pipe until the high-pressure gas nozzle 9 enters the interior of the steel pipe. Then, the air compressor connected to the gas delivery pipe 10 is started, and the air compressor allows the gas ejected from the high-pressure gas nozzle 9 to spray toward the inner wall of the steel pipe through the gas delivery pipe 10, so that the gas can blow the weld foam attached to the inner wall of the steel pipe toward the steel pipe port.

[0055] When the high-pressure gas nozzle 9 has blown away all the weld foam inside the steel pipe, the piston end of the cylinder 3 is started to extend, so that the piston end of the cylinder 3 will drive the slider 4 to slide on the inner wall of the fixed pipe 2 until the through pipe 6 is about to slide on the inner wall of the curved sliding opening b. At this time, the high-pressure gas nozzle 9 is no longer in the steel pipe, and the air compressor is turned off at this time.

[0056] When the through-tube 6 slides on the inner wall of the curved sliding opening b, the slider 4 and the through-tube 6 slide and rotate on the inner wall of the fixed tube 2, and the through-tube 6 drives the extension tube 7, the cleaning tube 8 and the high-pressure gas nozzle 9 to move in a spiral trajectory until the through-tube 6 slides on the inner wall of the vertical sliding opening c, so that the high-pressure gas nozzle 9 is vertically upward.

[0057] When the conveying assembly 11 conveys the cleaned steel pipe through the redirecting slide 5, the piston end of the cylinder 3 is started to retract, and the piston end of the cylinder 3 will drive the slider 4 back to the middle section of the fixed pipe 2. When a new steel pipe to be cleaned is conveyed to the position to be cleaned, the above process can be repeated to clean the steel pipe without stopping the machine.

[0058] During the cleaning process, the air compressor should continuously maintain the supply of high-pressure gas to ensure that the gas pressure in the gas delivery pipe 10 is stable, so that the nozzle can always spray gas with sufficient pressure to effectively remove dirt and impurities on the inner wall of the steel pipe. At the same time, observe the cleaning effect and, if necessary, adjust the movement speed or gas pressure of the cylinder 3 appropriately to achieve the best cleaning effect.

[0059] 3. Equipment shutdown and maintenance

[0060] After all the steel pipes are cleaned, the air compressor is first turned off to stop the gas supply, and then the cylinder 3 is turned off to stop the cleaning mechanism, and the slider 4 returns to the initial position, and finally the drive motor is turned off to stop the operation of the conveying assembly 11.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel pipe inner wall cleaning device, comprising a processing table (1) and a conveying assembly (11) arranged on the processing table (1), characterized in that: A fixed tube (2) is fixed on the processing table (1), and a cleaning mechanism is arranged inside the fixed tube (2); The cleaning mechanism comprises a cylinder (3) fixed on the inner wall of a fixed tube (2); a slider (4) is rotatably provided at the piston end of the cylinder (3); the outer wall of the slider (4) is slidably connected to the inner wall of the fixed tube (2); two direction-changing sliding openings (5) are provided on the fixed tube (2); a through tube (6) is fixed on the slider (4); the outer wall of the through tube (6) is slidably connected to the inner wall of the direction-changing sliding opening (5); an extension tube (7) is fixedly sleeved on the outer wall of the through tube (6); a cleaning tube (8) is fixed on the extension tube (7); a high-pressure gas nozzle (9) is fixed at the end of the cleaning tube (8); and a gas delivery tube (10) connected to the high-pressure gas nozzle (9) is fixed on the inner wall of the cleaning tube (8).

2. A steel pipe inner wall cleaning device according to claim 1, characterized in that: The direction-changing sliding opening (5) is composed of two horizontal sliding openings a, two curved sliding openings b and two vertical sliding openings c which are opened on the fixed pipe (2); the horizontal sliding openings a, the curved sliding openings b and the vertical sliding openings c on the same side are sequentially connected to each other; the two curved sliding openings b are centrally symmetrical with respect to the axis of the fixed pipe (2).

3. A steel pipe inner wall cleaning device according to claim 1, characterized in that: The conveying assembly (11) is composed of a driving motor fixed on the processing table (1) and a plurality of inward-recessed conveying cylinders rotatably arranged on the inner groove of the processing table (1), wherein the same steel pipe is mounted on the plurality of inward-recessed conveying cylinders, the output shaft of the driving motor is fixedly connected to the end of the conveying roller of one of the inward-recessed conveying cylinders, and the conveying rollers of two adjacent inward-recessed conveying cylinders are connected via a chain transmission.

4. A steel pipe inner wall cleaning device according to claim 1, characterized in that: The end of the gas delivery pipe (10) passes through the extension pipe (7) and the penetration pipe (6) in sequence and extends outward.

5. A steel pipe inner wall cleaning device according to claim 1, characterized in that: The slider (4) is provided with a through hole, and the outer wall of the through tube (6) and the inner wall of the through hole are fixedly connected.

6. A steel pipe inner wall cleaning device according to claim 1, characterized in that: The sliding block (4) is cylindrical in shape, and the sliding block (4) and the fixed tube (2) are coaxially arranged.

7. A steel pipe inner wall cleaning device according to claim 1, characterized in that: The two direction-changing sliding openings (5) are centrally symmetrical with respect to the axis of the fixed pipe (2).

8. A steel pipe inner wall cleaning device according to claim 2, characterized in that: When the outer wall of the through-tube (6) slides on the inner wall of the horizontal sliding opening a, the cleaning tube (8) and the high-pressure gas nozzle (9) are both coaxially arranged with the steel pipe.

9. A steel pipe inner wall cleaning device according to claim 2, characterized in that: The axis of the horizontal sliding port a is arranged parallel to the axis direction of the steel pipe during the conveying process.

10. The steel pipe inner wall cleaning device according to claim 1, characterized in that: The extension tube (7) and the cleaning tube (8) are both located above the conveying assembly (11).

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