Device for synchronously removing rust inside and outside large-diameter pipeline

Abstract

The invention discloses a large-diameter pipeline inside and outside synchronous derusting device, and relates to the technical field of pipeline derusting, the large-diameter pipeline inside and outside synchronous derusting device comprises a pipeline bracket platform and a pipeline, a plurality of pipeline rotating devices are fixedly mounted on one side of the top of the pipeline bracket platform, and one pipeline rotating device is in transmission connection with a driving structure; the pipeline is placed on the multiple sets of pipeline rotating devices, and the two symmetrically-arranged steel wire brush head telescopic devices are installed through the first supporting structure and the second supporting structure and make contact with the inner wall and the outer wall of the pipeline. According to the pipeline polishing device, the PLC control box synchronously controls the driving structure and the two steel wire brush head telescopic devices to cooperate, the driving structure drives one set of pipeline rotating devices to work, so that the pipeline rotating devices drive the pipeline to roll, and then steel wire brush bodies of the two steel wire brush head telescopic devices are controlled to rotate at a high speed to polish the inner wall and the outer wall in contact with the pipeline; and the two five-stage telescopic arms are controlled to stretch out synchronously, and the inner wall and the outer wall of the pipeline are completely polished through cooperation of pipeline rotation, telescopic arm stretching and high-speed rotation of the steel wire brush head.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline rust removal, in particular to a device for synchronously removing rust from inside and outside of a large-diameter pipeline. Background Art

[0002] With the rapid development of construction technology, mechanized construction has also been gradually upgraded, from the original mechanization to the current digital construction. Construction machinery and tools are constantly being innovated, and construction efficiency is constantly improving. While improving construction efficiency, construction quality is also further enhanced. There are many types of rust removal processes on the market, including manual grinding, sandblasting or some rust removal devices, but they are not well suited to construction sites. At the same time, some processes such as sandblasting are not suitable for operation and application on construction sites. Therefore, the development of a synchronous rust removal device for the inside and outside of pipelines can well solve the problems urgently needed at the construction site.

[0003] At present, due to the limitations of processing conditions on construction sites, conventional rust removal methods mainly include manual grinding or semi-automatic outer wall rust removal devices, which use mechanical roller brushes to clean the rust on the outer wall of the pipe. This processing method has a low degree of digitalization and cannot perform batch rust removal operations. It can only remove rust from the outer wall of the pipe, but cannot process the inner wall of the pipe. This adds a great risk to the subsequent system construction and system commissioning and operation, affecting the system operation effect. The rust on the inner wall of the pipe can also easily cause equipment damage.

[0004] Therefore, it is necessary to design a highly digitalized internal and external synchronous rust removal device for large-diameter pipelines. Summary of the invention

[0005] The present invention provides a device for synchronously removing rust from inside and outside of a large-diameter pipeline, which solves the above-mentioned technical problems.

[0006] In order to solve the above technical problems, the present invention provides a large-diameter pipeline internal and external synchronous rust removal device, including a pipeline support platform and a pipeline, a plurality of pipeline rotation devices are fixedly installed on one side of the top of the pipeline support platform, one of which is connected to a driving structure in a transmission manner, and the pipeline is placed on the plurality of pipeline rotation devices, and a support structure one and a support structure two are fixedly installed on the other side of the top of the pipeline support platform, and two symmetrically arranged wire brush head telescopic devices are installed through the support structure one and the support structure two to contact the inner and outer walls of the pipeline, a PLC control box is fixed on the side end of the pipeline support platform, the PLC control box is connected to an external power supply, and is electrically controlled and connected to the driving structure and the two wire brush head telescopic devices, and a triangular guide plate is fixed on the middle part of the top of the pipeline support platform to cooperate with one of the wire brush head telescopic devices for displacement.

[0007] Furthermore, the pipeline rotating device includes a mounting plate fixed on the pipeline bracket platform, two adjustment grooves are formed through the surface of the mounting plate, and two rotating wheels are symmetrically mounted through the two mounting plates.

[0008] Furthermore, the rotating wheel includes a U-shaped seat, the bottom of the U-shaped seat is threaded through and connected to two bolt groups, the two bolt groups are threaded through two adjustment grooves to fix the U-shaped seat on the mounting plate, and the upper part of the U-shaped seat is connected to a rubber wheel via a rotating shaft.

[0009] Furthermore, the driving structure includes a driving motor and gear 2 fixed to the side end of the pipe bracket platform through a support plate, the driving motor output shaft is fixed with gear 1, the gear 2 is fixedly mounted on the connecting shaft of one of the rotating wheels, and a transmission chain is connected between gear 1 and gear 2.

[0010] Furthermore, the support structure includes a mounting base fixed on the pipe bracket platform, an adjusting bolt is connected through a thread on the top of the mounting base, and two connecting plates are fixed to the front end of the mounting base. The two connecting plates are used to fix and support two wire brush head telescopic devices inserted and fixed inside the mounting base.

[0011] Furthermore, the supporting structure 2 includes a mounting seat 2 fixed on the pipe bracket platform, the top of the mounting seat 2 is threaded with an adjusting bolt 2, two guide rollers are rotatably installed inside the mounting seat 2, and the two connecting plates are used to support two wire brush head telescopic devices passing through the inside of the mounting seat 2.

[0012] Furthermore, the wire brush head telescopic device includes a five-stage telescopic arm fixedly connected to the connecting plate, a moving wheel is fixed on the bottom edge of the multi-section telescopic rod of the five-stage telescopic arm, and a servo motor is fixed inside the first section of the telescopic rod of the five-stage telescopic arm, the output shaft of the servo motor extends through the telescopic rod and is transmission-connected to the wire brush body.

[0013] Furthermore, the multiple moving wheels of the two wire brush head retracting devices are rollingly supported on the inner wall of the pipe and the triangular guide plate respectively.

[0014] Compared with the related art, the large-diameter pipeline internal and external synchronous rust removal device provided by the present invention has the following beneficial effects:

[0015] The present invention provides that adjustment is performed through three groups of pipeline rotating devices, and the spacing between each group of rotating wheels is adjusted, so as to hold up pipelines of different specifications.

[0016] The present invention provides a PLC control box that synchronously controls the driving structure and the two wire brush head telescopic devices to cooperate with each other. The driving structure drives one group of pipe rotating devices to work, so that it drives the pipe to roll, and then controls the wire brush bodies of the two wire brush head telescopic devices to rotate at high speed to grind the inner and outer walls in contact with the pipe, and controls the two five-level telescopic arms to extend synchronously. The inner and outer walls of the pipe are completely polished through the cooperation among the pipe rotation, the telescopic arm extension and the high-speed rotation of the wire brush head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall schematic diagram of a device for synchronously removing rust from inside and outside of a large-diameter pipeline according to the present invention;

[0018] Figure 2 A schematic diagram of a supporting structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the second supporting structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the transmission connection between the driving motor of the present invention and a set of pipeline rotating devices;

[0021] Figure 5 It is a schematic diagram of the wire brush head telescopic device of the present invention;

[0022] Figure 6 It is a partial cross-sectional schematic diagram of the wire brush head telescopic device of the present invention.

[0023] Numbers in the figure: 1. Pipe bracket platform; 2. Support structure 1; 21. Mounting seat 1; 22. Adjusting bolt 1; 23. Connecting plate; 3. Support structure 2; 31. Mounting seat 2; 32. Adjusting bolt 2; 33. Guide roller; 4. PLC control box; 5. Triangular guide plate; 6. Pipe rotating device; 61. Mounting plate; 611. Adjusting groove; 62. Rotating wheel; 621. U-shaped seat; 622. Bolt group; 623. Rubber wheel; 7. Pipe; 8. Driving motor; 81. Gear 1; 82. Transmission chain; 83. Gear 2; 9. Wire brush head telescopic device; 91. Five-stage telescopic arm; 92. Moving wheel; 93. Wire brush body; 94. Servo motor. DETAILED DESCRIPTION

[0024] Embodiment 1, by Figure 1-6Provided is a device for synchronously removing rust from inside and outside of large-diameter pipes, comprising a pipe support platform 1 and a pipe 7, a plurality of groups of pipe rotating devices 6 are fixedly installed on one side of the top of the pipe support platform 1, one group of pipe rotating devices 6 is transmission-connected with a driving structure, the pipe 7 is placed on the plurality of groups of pipe rotating devices 6, a support structure 1 2 and a support structure 2 3 are fixedly installed on the other side of the top of the pipe support platform 1, and two symmetrically arranged wire brush head telescopic devices 9 are installed through the support structure 1 2 and the support structure 2 3 to contact the inner and outer walls of the pipe 7, a PLC control box 4 is fixed on the side end of the pipe support platform 1, the PLC control box 4 is connected to an external power supply, and is electrically controlled and connected to the driving structure and the two wire brush head telescopic devices 9, and a triangular guide plate 5 is fixed on the middle part of the top of the pipe support platform 1 to cooperate with one of the wire brush head telescopic devices 9 for displacement.

[0025] Specifically, adjustment is made through three groups of pipe rotating devices 6 to adjust the spacing between the rotating wheels of each group 62, so as to hold up pipes of different specifications. The driving structure is controlled by the PLC control box 4 to drive one group of pipe rotating devices 6 to work, so that it drives the pipe 7 to roll. Then, the wire brush bodies 93 of the two wire brush head telescopic devices 9 are controlled to rotate at high speed to grind the inner and outer walls in contact with the pipe 7, and the two five-level telescopic arms 91 are controlled to extend synchronously. Through the cooperation among the rotation of the pipe 7, the extension of the telescopic arm, and the high-speed rotation of the wire brush head, the inner and outer walls of the pipe 7 are completely polished.

[0026] In this embodiment, the pipeline rotating device 6 includes a mounting plate 61 fixed on the pipeline bracket platform 1, and two adjustment grooves 611 are formed through the surface of the mounting plate 61, and two rotating wheels 62 are symmetrically installed through the two mounting plates 61; the rotating wheel 62 includes a U-shaped seat 621, and the bottom of the U-shaped seat 621 is threadedly connected with two bolt groups 622, and the two bolt groups 622 are respectively threaded through the two adjustment grooves 611 to fix the U-shaped seat 621 on the mounting plate 61, and the upper part of the U-shaped seat 621 is connected to a rubber wheel 623 through a rotating shaft.

[0027] Specifically, the bolt group 622 of one of the two rotating wheels 62 is loosened so that the rotating wheel 62 can move in the adjustment slot 611 of the mounting plate 61 through the bolt group 622, thereby adjusting the distance between the two rotating wheels 62 to facilitate supporting the pipeline 7.

[0028] In this embodiment, the driving structure includes a driving motor 8 and a gear 2 83 fixed to the side end of the pipe bracket platform 1 through a support plate, a gear 1 81 is fixed to the output shaft of the driving motor 8, and a gear 2 83 is fixedly installed on the connecting shaft of one of the rotating wheels 62, and a transmission chain 82 is connected between the gear 1 81 and the gear 2 83.

[0029] Specifically, the driving motor 8 drives the gear 1 81 , the gear 1 81 drives the transmission chain 82 , thereby driving the gear 2 83 to drive the rotating wheel 62 to rotate, and the pipeline 7 is located between the two rotating wheels 62 , thereby driving the pipeline 7 to rotate.

[0030] In this embodiment, the support structure 2 includes a mounting seat 21 fixed on the pipe bracket platform 1, and the top of the mounting seat 21 is threadedly connected with an adjusting bolt 22, and two connecting plates 23 are fixed to the front end of the mounting seat 21, and the two connecting plates 23 are used to fix and support the two wire brush head telescopic devices 9 inserted and fixed inside the mounting seat 21; the support structure 23 includes a mounting seat 31 fixed on the pipe bracket platform 1, and the top of the mounting seat 31 is threadedly connected with an adjusting bolt 32, and two guide rollers 33 are rotatably installed inside the mounting seat 31, and the two connecting plates 23 are used to support the two wire brush head telescopic devices 9 passing through the inside of the mounting seat 31.

[0031] Embodiment 2, on the basis of embodiment 1, the wire brush head telescopic device 9 includes a five-stage telescopic arm 91 fixedly connected to the connecting plate 23, a moving wheel 92 is fixed to the bottom edge of the multi-section telescopic rod of the five-stage telescopic arm 91, and a servo motor 94 is fixed inside the first section of the telescopic rod of the five-stage telescopic arm 91, the output shaft of the servo motor 94 extends through the telescopic rod and is transmission-connected to the wire brush body 93, and the multiple moving wheels 92 of the two wire brush head telescopic devices 9 are respectively supported on the inner wall of the pipe 7 and the triangular guide plate 5 for rolling support.

[0032] Specifically, the stepper motor is driven to drive the wire brush body 93 to rotate at high speed to grind the inner and outer walls that are in contact with the pipe 7; then the two five-stage telescopic arms 91 (multi-section electric telescopic cylinders) are controlled to extend synchronously, and the inner and outer walls of the pipe 7 are completely polished through the coordination between the rotation of the pipe 7, the extension of the telescopic arms, and the high-speed rotation of the wire brush head. In the process of extending the two five-stage telescopic arms 91, the multiple movable arms 92 installed on each of them move on the inner wall of the pipe 7 and the triangular guide plate 5 to maintain stability.

[0033] Working principle:

[0034] First, according to the different diameters of the polished pipe 7, the three groups of pipe rotating devices 6 are adjusted, and the bolt group 622 of one of the two rotating wheels 62 is loosened, so that the rotating wheel 62 moves in the adjustment groove 611 of the mounting plate 61 through the bolt group 622, thereby adjusting the distance between the two rotating wheels 62, so as to facilitate the support of the pipe 7;

[0035] The driving structure is controlled by the PLC control box 4 to drive one group of pipeline rotating devices 6 to work, so that it drives the pipeline 7 to roll, the driving motor 8 drives the gear 1 81, the gear 1 81 drives the transmission chain 82, thereby driving the gear 2 83 to drive the rotating wheel 62 to rotate, and the pipeline 7 is located between the two rotating wheels 62, thereby driving the pipeline 7 to rotate;

[0036] Next, the PLC control box 4 controls the two wire brush head telescopic devices 9 to work, and the wire brush bodies 93 connected to the two five-stage telescopic arms 91 contact the inner and outer walls of the pipe 7 respectively, and the stepper motor drives the wire brush body 93 to rotate at high speed to grind the inner and outer walls of the pipe 7;

[0037] Finally, the two five-stage telescopic arms 91 are controlled to extend synchronously, and the inner and outer walls of the pipe 7 are completely polished through the cooperation among the rotation of the pipe 7, the extension and retraction of the telescopic arms, and the high-speed rotation of the wire brush head.

Claims

1. A device for synchronously removing rust from inside and outside of a large-diameter pipeline, comprising a pipeline support platform (1) and a pipeline (7), characterized in that: A plurality of sets of pipeline rotating devices (6) are fixedly installed on one side of the top of the pipeline support platform (1), one set of pipeline rotating devices (6) is connected to a driving structure in a transmission manner, and the pipeline (7) is placed on the plurality of sets of pipeline rotating devices (6). A support structure 1 (2) and a support structure 2 (3) are fixedly installed on the other side of the top of the pipeline support platform (1), and two symmetrically arranged steel brush head telescopic devices (9) are installed through the support structure 1 (2) and the support structure 2 (3) to contact the inner and outer walls of the pipeline (7). A PLC control box (4) is fixed on the side end of the pipeline support platform (1), and the PLC control box (4) is connected to an external power supply and is electrically controlled and connected to the driving structure and the two steel brush head telescopic devices (9). A triangular guide plate (5) is fixed on the middle part of the top of the pipeline support platform (1) to cooperate with one of the steel brush head telescopic devices (9) for displacement.

2. A large-diameter pipeline internal and external synchronous rust removal device according to claim 1, characterized in that: The pipeline rotating device (6) comprises a mounting plate (61) fixed on the pipeline bracket platform (1), two adjustment grooves (611) are formed through the surface of the mounting plate (61), and two rotating wheels (62) are symmetrically mounted through the two mounting plates (61).

3. A large-diameter pipeline internal and external synchronous rust removal device according to claim 2, characterized in that: The rotating wheel (62) comprises a U-shaped seat (621), the bottom of the U-shaped seat (621) is threadedly connected to two bolt groups (622), the two bolt groups (622) are threadedly connected to two adjustment grooves (611) to fix the U-shaped seat (621) on the mounting plate (61), and the upper part of the U-shaped seat (621) is connected to a rubber wheel (623) via a rotating shaft.

4. A large-diameter pipeline internal and external synchronous rust removal device according to claim 3, characterized in that: The driving structure comprises a driving motor (8) and a second gear (83) fixed to the side end of the pipeline bracket platform (1) via a support plate, the output shaft of the driving motor (8) being fixed with a first gear (81), the second gear (83) being fixedly mounted on a connecting shaft of one of the rotating wheels (62), and a transmission chain (82) being transmission-connected between the first gear (81) and the second gear (83).

5. The device for synchronously removing rust from inside and outside of large-diameter pipelines according to claim 1 is characterized in that: The supporting structure (2) comprises a mounting seat (21) fixed on the pipe bracket platform (1), an adjusting bolt (22) is threadedly connected through the top of the mounting seat (21), and two connecting plates (23) are fixed to the front end of the mounting seat (21), and the two connecting plates (23) are used to fix and support two wire brush head telescopic devices (9) inserted and fixed inside the mounting seat (21).

6. The device for synchronously removing rust from inside and outside of large-diameter pipelines according to claim 1 is characterized in that: The supporting structure 2 (3) comprises a mounting seat 2 (31) fixed on the pipe bracket platform (1), the top of the mounting seat 2 (31) is threadedly connected with an adjusting bolt 2 (32), two guide rollers (33) are rotatably mounted inside the mounting seat 2 (31), and the two connecting plates (23) are used to support two steel wire brush head telescopic devices (9) passing through the inside of the mounting seat 2 (31).

7. The device for synchronously removing rust from inside and outside of large-diameter pipelines according to claim 5, characterized in that: The wire brush head telescopic device (9) comprises a five-stage telescopic arm (91) fixedly connected to a connecting plate (23), a moving wheel (92) being fixed to the bottom edge of a multi-section telescopic rod of the five-stage telescopic arm (91), and a servo motor (94) being fixed inside the first section of the telescopic rod of the five-stage telescopic arm (91), an output shaft of the servo motor (94) extending through the telescopic rod and being transmission-connected to the wire brush body (93).

8. The device for synchronously removing rust from inside and outside of large-diameter pipelines according to claim 7, characterized in that: The multiple moving wheels (92) of the two wire brush head telescopic devices (9) are respectively supported in a rolling manner on the inner wall of the pipe (7) and the triangular guide plate (5).

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