Rust removal device for large-diameter steel pipe

Abstract

The invention relates to the technical field of steel pipe rust removal, in particular to a large-diameter steel pipe rust removal device which comprises a bottom plate, lifting and lifting mechanisms are arranged on the two sides of the bottom plate and used for clamping the two ends of a large-diameter steel pipe and lifting and lifting the large-diameter steel pipe upwards, a transverse top plate is arranged above the bottom plate, and vertical supporting plates are arranged on the two sides of the bottom plate and used for clamping the two ends of the large-diameter steel pipe. The two ends of the transverse top plate are connected with the two vertical supporting plates correspondingly, the rust removal mechanism is arranged on the rear sides of the vertical supporting plates, and the lifting and lifting mechanism can lift a steel pipe into the air and can drive the steel pipe to rotate so as to be conveniently matched with the corrosion and rust unit to corrode rust on the surface of the steel pipe and the rust grinding unit to grind the rust on the surface of the steel pipe; the corrosion and rust removal unit can uniformly spray the rust removal liquid on the surface of the steel pipe, so that the steel pipe is corroded and soaked by the rust removal liquid before being subjected to rust removal, rust on the surface of the steel pipe can be pretreated in advance, subsequent grinding treatment of the rust grinding unit is facilitated, and the effect of removing the rust on the surface of the steel pipe is improved.

Description

Technical Field

[0001] The present application relates to the technical field of steel pipe rust removal, and in particular to a large-diameter steel pipe rust removal device. Background Art

[0002] A steel pipe is a shell structure with a hollow cross-section. Its length is much larger than its diameter. It is used to transport fluids, powdered solids, etc. Deep-sea steel pipes are in a low-temperature, high-pressure, and highly corrosive working environment for a long time. When machining steel pipes, it is generally necessary to remove rust, polish, and grind the surface of the steel pipe to facilitate further machining of the steel pipe.

[0003] For example, the steel pipe rust removal machine with publication number CN115673975A can drive the steel pipe to rotate through the coordinated arrangement of the driving motor, the mounting block and the clamping plate, and can drive the elastic grinding block to rotate through the coordinated arrangement of the reduction motor, the worm, the worm gear and the cross bar. The elastic grinding block can grind and remove rust from the surface of the steel pipe, and the steel pipe can be driven to move to the right through the electric telescopic rod, so that the complete steel pipe can be grinded and removed from rust. There is no need to manually rotate the steel pipe multiple times, which saves time and effort and improves the speed of steel pipe rust removal.

[0004] Although the above-mentioned prior art can realize rust removal on the surface of steel pipes, there are still some problems:

[0005] 1. The above-mentioned prior art is to drive the steel pipe to rotate to cooperate with the grinding block to achieve rust removal on the surface of the steel pipe. This method can be used for small-diameter thin steel pipes because the weight of small-diameter thin steel pipes is relatively light, so it can be realized. However, when it comes to large-diameter steel pipes, especially steel pipes with thick walls, the prior art cannot drive them to rotate. It can be seen that the prior art is defective.

[0006] 2. The above-mentioned prior art directly uses a grinding block to grind the outer wall of the steel pipe. This method belongs to the traditional rust removal method, but the rust removal efficiency is not high and the rust on the surface of the steel pipe cannot be completely removed. The rust removal method of the prior art needs to be optimized and improved. Summary of the invention

[0007] In order to solve the above technical problems, the present application provides a large-diameter steel pipe rust removal device, which adopts the following technical solution.

[0008] A large-diameter steel pipe rust removal device comprises a bottom plate, both sides of the bottom plate are provided with lifting and emptying mechanisms, which are used to clamp the two ends of the large-diameter steel pipe and lift it upward, a horizontal top plate is provided above the bottom plate, and vertical support plates are provided on both sides of the bottom plate, the two ends of the horizontal top plate are respectively connected to the two vertical support plates, and the rear side of the vertical support plate is provided with a rust removal mechanism, which is used to remove rust from the surface of the lifted steel pipe;

[0009] The lifting mechanism includes an L-shaped plate, the horizontal section of the L-shaped plate is slidably arranged on the bottom plate, the horizontal section of the L-shaped plate is provided with a supporting platform with a V-shaped upper end, a clamping assembly is provided between the vertical section of the L-shaped plate and the supporting platform, the clamping assembly includes a three-jaw chuck, the three-jaw chuck is used to clamp the end of the steel pipe, a horizontally placed connecting cylinder is provided on the side of the three-jaw chuck facing the vertical section of the L-shaped plate, a connecting ring is provided on the rotating sleeve of the outer side wall of the connecting cylinder, a lifting assembly connected to the connecting ring is provided on the horizontal top plate, a vertical bar is provided on the vertical section of the L-shaped plate, a rectangular slide groove is provided on the side of the connecting cylinder facing away from the three-jaw chuck, and the rectangular slide groove is slidably matched with the vertical bar.

[0010] Preferably, the lifting assembly includes a lifting shaft arranged above the horizontal top plate, and the two ends of the lifting shaft are respectively rotatably arranged on two vertical support plates. A winding disk is provided on the sliding sleeve of the lifting shaft, and a connecting rope is connected to the winding disk, and the lower end of the connecting rope is connected to the connecting ring.

[0011] Preferably, a synchronization plate is provided on the top of the L-shaped plate, and a round hole is opened on the synchronization plate for the connecting rope to pass through, synchronization brackets are rotatably provided at both ends of the winding disk, the synchronization brackets are fixed on the synchronization plate, and a horizontal sliding groove is opened on the horizontal top plate for the horizontal movement of the synchronization bracket.

[0012] Preferably, a circular block is rotatably provided on the vertical section of the L-shaped plate, the circular block is located directly above the vertical bar, a plug-in strip is provided on the side of the circular block facing the center of the bottom plate and is in the same vertical line as the vertical bar, and the plug-in strip is slidably matched with the rectangular slide groove, and an arc-shaped limit plate is provided on the top of the plug-in strip.

[0013] Preferably, the rust removal mechanism includes a guide rod arranged at the lower rear side of the horizontal top plate, both ends of the guide rod are respectively connected to transfer rods arranged at the rear ends of both sides of the horizontal top plate, two movable sliders are slidably provided on the guide rod, an electric push rod is fixedly inserted on the movable slider, a vertical plate one and a vertical plate two are respectively provided in front of the two movable sliders, output ends of the electric push rods on the two movable sliders are respectively connected to the corresponding vertical plate one and vertical plate two, a rust grinding unit is provided on the front side of the vertical plate one, and a rust corrosion unit is provided on the front side of the vertical plate two.

[0014] Preferably, the rust unit includes a connecting plate, two connecting plates symmetrically distributed up and down are slidably provided on the front side of the second vertical plate, and a rectangular hole for the connecting plate to slide up and down is opened on the second vertical plate, a two-way push rod is provided on the rear side of the second vertical plate, and the two telescopic ends of the two-way push rod are respectively connected to the two connecting plates, an extension plate with a hollow interior is provided at the front end of the upper connecting plate, and the bottom of the vertical section of the extension plate is set as an expanded spray plate with an inverted "V" structure, a collecting box is provided at the front end of the lower connecting plate, and an arc-shaped collecting frame with a concave surface facing upward is provided at the upper end of the collecting box.

[0015] Preferably, the connecting plate is configured as a hollow shell structure, and a water pump is installed on the rear side of the second vertical plate. The water outlet of the water pump is connected to the upper connecting plate through a connecting pipe, and the water inlet of the water pump is also connected to the lower connecting plate through a connecting pipe. The lower connecting plate is connected to the collection box, and a removable filter screen is provided at the bottom of the arc-shaped collection frame.

[0016] Preferably, an arc-shaped supporting plate is provided in the arc-shaped collecting frame, and a sponge layer is provided on the upper surface of the arc-shaped supporting plate.

[0017] Preferably, the rust grinding unit includes a transverse plate, two transverse plates are symmetrically slidably arranged at the front end of a vertical plate, and a strip hole is opened on the vertical plate for the transverse plate to slide up and down, a two-way push rod is provided on the rear side of the vertical plate, and the two telescopic ends of the two-way push rod are respectively connected to the two transverse plates, and semicircular plates are provided on the opposite sides of the front ends of the two transverse plates, and the two semicircular plates are combined to form a complete annular circular plate, and a semicircular ring is slidably provided on the concave surface of the semicircular plate, and the semicircular ring rotates in the annular circular plate, and a rust grinding component is provided on the semicircular ring.

[0018] Preferably, the rust-grinding assembly includes an extension plate, a semicircular side wall is provided with an extension plate, an adjustment rod is threaded through the extension plate, an arc-shaped mounting plate is provided at one end of the adjustment rod facing the center of the annular circular plate, and a rust-grinding plate is detachably mounted on the concave surface of the arc-shaped mounting plate.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] 1. The lifting mechanism of the present invention can lift the steel pipe into the air and can drive the steel pipe to rotate, so as to facilitate the corrosion of rust on the surface of the steel pipe by the corrosion unit and the grinding of rust on the surface of the steel pipe by the grinding unit.

[0021] 2. The rust-corrosion unit of the present invention can spray the rust removal liquid evenly on the surface of the steel pipe, so that the steel pipe can be corroded and soaked in the rust removal liquid before rust removal, and the rust on the surface of the steel pipe can be pre-treated in advance, which is helpful for the subsequent rust grinding unit to perform grinding treatment and improve the effect of removing rust on the surface of the steel pipe.

[0022] 3. The expanded spray plate of the present invention sprays the rust removal liquid onto the surface of the steel pipe, and cooperates with the steel pipe rotating around the axis of the circular block, so that the rust removal liquid can be evenly distributed on the surface of the steel pipe, which helps to corrode the rust on the steel pipe.

[0023] 4. The arc-shaped support plate and sponge layer of the present invention can soak and corrode the stubborn rust on the surface of the steel pipe. At the same time, the moving slider can move the sponge layer to any specified position. At the same time, the rotating steel pipe can make the sponge layer soak and corrode the stubborn rust at any position on the surface of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 It is a structural schematic diagram of the lifting and air lifting mechanism of the present invention.

[0026] Figure 3 It is a structural schematic diagram of the clamping assembly of the present invention.

[0027] Figure 4 It is a structural schematic diagram of the lifting assembly of the present invention.

[0028] Figure 5 It is a structural schematic diagram of the rust removal mechanism of the present invention.

[0029] Figure 6 The present invention Figure 5 A partial enlarged view of point A.

[0030] Figure 7 The structure of the corrosion unit of the present invention is shown in FIG. Figure 1 .

[0031] Figure 8 The structure of the corrosion unit of the present invention is shown in FIG. Figure 2 .

[0032] Fig. 9 It is a structural schematic diagram of the rust-removing unit of the present invention.

[0033] Fig.10 The present invention Fig. 9 A partial enlarged view of point B.

[0034] Explanation of reference numerals: 1, bottom plate; 2, lifting mechanism; 3, horizontal top plate; 4, vertical support plate; 5, rust removal mechanism; 21, L-shaped plate; 22, supporting platform; 23, clamping assembly; 231, three-jaw chuck; 232, connecting cylinder; 233, connecting ring; 24, lifting assembly; 25, vertical bar; 26, rectangular slide; 241, lifting shaft; 242, winding disk; 243, connecting rope; 244, synchronous plate; 245, synchronous bracket; 27, circular block; 28, plug-in strip; 29, arc-shaped limit plate; 51, guide rod; 52, transfer rod; 53, moving slider; 54, electric push rod; 55 , vertical plate one; 56, vertical plate two; 57, rust grinding unit; 58, rust corrosion unit; 581, connecting plate; 582, two-way push rod one; 583, extension plate; 584, flared spray plate; 585, collecting box; 586, arc-shaped collecting frame; 5861, filter plate; 5862, arc-shaped supporting plate; 5863, sponge layer; 587, water pump; 588, connecting pipe; 571, transverse plate; 572, two-way push rod two; 573, semicircular plate; 574, semicircular ring; 575, rust grinding assembly; 5751, extension plate; 5752, adjusting rod; 5753, arc-shaped mounting plate; 5754, rust grinding plate. DETAILED DESCRIPTION

[0035] The following is combined with Figures 1 to 10 This application is described in further detail.

[0036] See also Figure 1 A large-diameter steel pipe rust removal device comprises a bottom plate 1, and lifting mechanisms 2 are provided on both sides of the bottom plate 1 for clamping the two ends of the large-diameter steel pipe and lifting it upward to facilitate subsequent rust removal operations on the surface of the steel pipe; a horizontal top plate 3 is provided above the bottom plate 1, and vertical support plates 4 are provided on both sides of the bottom plate 1, and the two ends of the horizontal top plate 3 are respectively connected to the two vertical support plates 4, and a rust removal mechanism 5 is provided on the rear side of the vertical support plate 4 for rust removal on the surface of the lifted steel pipe.

[0037] See also Figures 1 to 3 The lifting and lifting mechanism 2 includes an L-shaped plate 21, the horizontal section of the L-shaped plate 21 is slidably arranged on the bottom plate 1, and a supporting platform 22 with a V-shaped structure at the upper end is provided on the horizontal section of the L-shaped plate 21. A clamping assembly 23 is provided between the vertical section of the L-shaped plate 21 and the supporting platform 22. The clamping assembly 23 includes a three-jaw chuck 231. The three-jaw chuck 231 is used to clamp the end of the steel pipe. The three-jaw chuck 231 is provided with a horizontally placed connecting cylinder 232 on the side facing the vertical section of the L-shaped plate 21, and a connecting ring 233 is provided on the outer wall of the connecting cylinder 232. The horizontal top plate 3 is provided with a lifting assembly 24 connected to the connecting ring 233. The vertical section of the L-shaped plate 21 is provided with a vertical bar 25, and a rectangular slide groove 26 is provided on the side of the connecting cylinder 232 away from the three-jaw chuck 231. The rectangular slide groove 26 slides with the vertical bar 25 to ensure that the connecting cylinder 232 drives the three-jaw chuck 231 to move smoothly along the longitudinal direction.

[0038] In the specific implementation process, when the steel pipe to be derusted is placed on two supporting platforms 22, the two ends of the steel pipe are clamped by two three-jaw chucks 231, and then under the drive of the lifting component 24, the connecting ring 233 is pulled up to drive the three-jaw chuck 231 to move up synchronously, so that the steel pipe is lifted up and the subsequent rust removal work on the surface of the steel pipe is convenient.

[0039] See also Figure 4The lifting assembly 24 includes a lifting shaft 241 arranged above the horizontal top plate 3, and the two ends of the lifting shaft 241 are respectively rotatably arranged on the two vertical support plates 4. A winding disk 242 is provided on the lifting shaft 241, wherein the winding disk 242 slides along its axial direction on the lifting shaft 241, and when the lifting shaft 241 rotates, it will drive the winding disk 242 to rotate synchronously; a connecting rope 243 is connected to the winding disk, and the lower end of the connecting rope 243 is connected to the connecting ring 233. Therefore, when the lifting shaft 241 rotates, the winding disk 242 will also rotate synchronously, and the connecting rope 243 begins to be wound around the winding disk 242, and then the connecting rope 243 pulls the connecting ring 233 to move up, so that the connecting cylinder 232 drives the three-claw chuck 231 to move up synchronously, and finally the lifting and lifting of the steel pipe is realized, and the connecting cylinder 232 will slide on the vertical bar 25 through the rectangular slide groove 26.

[0040] When clamping steel pipes of different lengths or the three-jaw chuck 231, it is necessary to control the L-shaped plate 21 to move along the length direction of the base plate 1. Therefore, the present application needs to ensure that the winding disk 242 moves synchronously with the L-shaped plate 21 to avoid the problem of the connecting rope 243 interfering with the three-jaw chuck 231 clamping the steel pipe. Specifically, a synchronization plate 244 is provided on the top of the L-shaped plate 21, and a circular hole for the connecting rope 243 to pass through is opened on the synchronization plate 244. Synchronous brackets 245 are rotatably provided at both ends of the winding disk 242. It should be noted that there is no direct connection between the synchronization bracket 245 and the lifting shaft 241, that is, when the lifting shaft 241 rotates, it will not drive the synchronization bracket 245 to rotate, and the synchronization bracket 245 is fixed on the synchronization plate 244.

[0041] When the L-shaped plate 21 moves along the length direction of the base plate 1, the L-shaped plate 21, through the cooperation of the synchronization plate 244 and the synchronization bracket 245, will drive the winding disk 242 to slide synchronously with the axial direction of the lifting shaft 241, thereby avoiding the problem of misalignment between the connecting ring 233 and the winding disk 242 when the L-shaped plate 21 moves, thereby causing the connecting ring 233 to be above the normal height, making it impossible for the three-jaw chuck 231 to clamp the column steel pipe.

[0042] In addition, a transverse sliding groove is provided on the transverse top plate 3 for the synchronous bracket 245 to move horizontally.

[0043] Continue reading Figure 4 A circular block 27 is rotatably provided on the vertical section of the L-shaped plate 21, and the circular block 27 is located directly above the vertical bar 25. A plug-in bar 28 is provided on the side of the circular block 27 facing the center of the bottom plate 1 and is in the same vertical line as the vertical bar 25. The plug-in bar 28 is slidably matched with the rectangular slide groove 26, and an arc-shaped limiting plate 29 is provided on the top of the plug-in bar 28.

[0044] When the connecting rope 243 pulls the connecting ring 233 upward, the connecting cylinder 232 moves steadily upward along the vertical bar 25 through the rectangular slide groove 26, and when the connecting cylinder 232 moves to the top of the vertical bar 25, the connecting rope 243 continues to pull the connecting ring 233 upward. At this time, the connecting cylinder 232 moves upward and the rectangular slide groove 26 begins to engage with the plug-in bar 28. When the outer surface of the connecting ring 233 contacts the arc-shaped limit plate 29, the connecting rope 243 stops pulling the connecting ring 233 upward.

[0045] In addition, the end of the circular block 27 away from the plug-in strip 28 can be connected to a motor, which can drive the circular block 27 to rotate, and then the circular block 27 can realize the rotation of the three-jaw chuck 231 through the plug-in strip 28, thereby realizing the synchronous rotation of the steel pipe, so as to facilitate the subsequent rust removal work on the surface of the steel pipe.

[0046] See also Figure 5 and Figure 6 The rust removal mechanism 5 includes a guide rod 51 arranged at the lower rear side of the horizontal top plate 3, and the two ends of the guide rod 51 are respectively connected to the transfer rods 52 arranged at the rear ends of the two sides of the horizontal top plate 3. Two movable sliders 53 are slidably provided on the guide rod 51, and an electric push rod 54 is fixedly penetrated on the movable slider 53. A vertical plate 1 55 and a vertical plate 2 56 are respectively provided in front of the two movable sliders 53. The output ends of the electric push rods 54 on the two movable sliders 53 are respectively connected to the corresponding vertical plate 1 55 and the vertical plate 2 56. A rust grinding unit 57 is provided on the front side of the vertical plate 1 55 to grind the rust on the surface of the steel pipe; a rust corrosion unit 58 is provided on the front side of the vertical plate 2 56 to immerse and corrode the rust on the surface of the steel pipe by rust removal liquid.

[0047] When the steel pipe is lifted to the specified height, the rust unit 58 is first driven to move to the steel pipe by the electric push rod 54, so that the rust unit 58 can corrode the rust on the surface of the steel pipe. At the same time, the rust unit 58 can be driven to move along the length direction of the steel pipe by moving the slider 53, so that the rust unit 58 can evenly corrode the rust on the surface of the steel pipe.

[0048] See also Figure 7 and Figure 8 Specifically, the rust unit 58 includes a connecting plate 581, two connecting plates 581 symmetrically distributed up and down are slidably provided on the front side of the vertical plate 56, and a rectangular hole for the connecting plates 581 to slide up and down is opened on the vertical plate 56, a two-way push rod 582 is provided on the rear side of the vertical plate 56, and the two telescopic ends of the two-way push rod 582 are respectively connected to the two connecting plates 581, an extension plate 583 with a hollow interior is provided at the front end of the upper connecting plate 581, and the bottom of the vertical section of the extension plate 583 is set as an expanded spray plate 584 with an inverted "V" structure, a collecting box 585 is provided at the front end of the lower connecting plate 581, and an arc-shaped collecting frame 586 with a concave surface facing upward is provided at the upper end of the collecting box 585.

[0049] After the steel pipe is lifted, the electric push rod 54 drives the vertical plate 2 56 to move forward until the flared spray plate 584 and the arc-shaped collecting frame 586 of the extension plate 583 are respectively located directly above and directly below the steel pipe. At this time, the two-way push rod 1 582 drives the two connecting plates 581 to move relative to each other, that is, the flared spray plate 584 and the arc-shaped collecting frame 586 move toward the steel pipe. Then, when the rust removal liquid is injected into the extension plate 583, the rust removal liquid will spray downward through the flared spray plate 584, so that the rust removal liquid will be evenly sprayed on the surface of the steel pipe, and the rust removal liquid will flow from top to bottom along the surface of the steel pipe, so that the rust removal liquid will evenly cover the surface of the steel pipe, so that the rust removal liquid can corrode the rust on the surface of the steel pipe. At the same time, driven by the moving slider 53, the extension plate 583 and the arc-shaped collecting frame 586 can be driven to move at a uniform speed along the length direction of the steel pipe, so that the surface of the steel pipe can be sprayed with the rust removal liquid.

[0050] Furthermore, the steel pipe can be driven to rotate along the axial direction of the circular block 27 to ensure that the rust removal liquid can evenly cover the surface of the steel pipe, thereby improving the rust removal effect.

[0051] Continue reading Figure 7 The connecting plate 581 is also configured as a hollow shell structure, and a water pump 587 is installed on the rear side of the vertical plate 56. The water outlet of the water pump 587 is connected to the upper connecting plate 581 through a connecting pipe 588, and the water inlet of the water pump 587 is also connected to the lower connecting plate 581 through a connecting pipe 588. The lower connecting plate 581 is connected to the collecting box 585, and a removable filter screen 5861 is provided at the bottom of the arc-shaped collecting frame 586.

[0052] The flared spray plate 584 sprays the rust removal liquid toward the surface of the steel pipe. The rust removal liquid flows from top to bottom along the surface of the steel pipe and finally converges into the arc-shaped collection frame 586. Then, it falls into the collection box 585 after being filtered by the filter screen plate 5861. At the same time, the water pump 587 is started. The rust removal liquid stored in the collection box 585 is extracted through the water pump 587. After passing through the lower connecting plate 581 and the connecting pipe 588 connected thereto, it converges into the water pump 587. Then, it is pumped into the upper connecting plate 581 through the connecting pipe 588 at the water outlet end of the water pump 587, and finally passes through the extension plate 583 and is sprayed onto the surface of the steel pipe through the flared spray plate 584.

[0053] An arc-shaped supporting plate 5862 is provided in the arc-shaped collecting frame 586. The arc-shaped supporting plate 5862 has deformation capability, and a sponge layer 5863 is provided on the upper surface of the arc-shaped supporting plate 5862. When the flared spray plate 584 sprays the rust removal liquid, the rust removal liquid flows downward along the surface of the steel pipe and converges on the arc-shaped supporting plate 5862, and then is adsorbed by the sponge layer 5863, and the sponge layer 5863 will contact the surface of the bottom of the steel pipe, so that the rust removal liquid absorbed by the sponge layer 5863 is always in contact with the surface of the bottom of the steel pipe, so that targeted rust treatment can be performed on the area on the surface of the steel pipe where rust is severe. Specifically, the sponge layer 5863 is controlled to move to the area on the surface of the steel pipe where rust is severe, and the steel pipe is rotated along the center of the circular block 27 to align the area on the surface of the steel pipe where rust is severe with the sponge layer 5863.

[0054] In addition, excess rust removal liquid on the arc-shaped support plate 5862 will flow along the left and right sides of the arc-shaped support plate 5862 into the arc-shaped collecting frame 586, and the arc-shaped support plate 5862 has a certain deformation ability to adapt to steel pipes of different diameters.

[0055] See also Fig. 9 and Fig.10 The rust-grinding unit 57 includes a transverse plate 571, and the two transverse plates 571 are symmetrically slidably arranged at the front end of the vertical plate 55, and the vertical plate 55 is provided with a strip hole for the transverse plate 571 to slide up and down. A two-way push rod 572 is provided on the rear side of the vertical plate 55, and the two telescopic ends of the two-way push rod 572 are respectively connected to the two transverse plates 571, and semicircular plates 573 are provided on the opposite sides of the front ends of the two transverse plates 571. The two semicircular plates 573 are combined to form a complete annular circular plate, and a semicircular ring 574 is slidably provided on the concave surface of the semicircular plate 573, and the semicircular ring 574 rotates in the annular circular plate, and a rust-grinding component 575 is provided on the semicircular ring 574.

[0056] The rust grinding assembly 575 includes an extension plate 5751, and the side wall of the semicircular ring 574 is provided with an extension plate 5751. An adjusting rod 5752 is threaded through the extension plate 5751. An arc-shaped mounting plate 5753 is provided at one end of the adjusting rod 5752 facing the center of the annular circular plate. A rust grinding plate 5754 is detachably mounted on the concave surface of the arc-shaped mounting plate 5753, and the rust grinding plate 5754 is used to grind rust on the surface of the steel pipe.

[0057] When the rust on the steel pipe surface is corroded by the rust unit 58, the vertical plate 1 moves forward and ensures that the two semicircular plates 573 are located above and below the steel pipe, then the two-way push rod 2 572 drives the two horizontal plates 571 to move towards each other until the two semicircular plates 573 merge into a complete annular plate, then the adjusting rod 5752 is turned to adjust the position of the arc-shaped mounting plate 5753 until the grinding plate contacts the surface of the steel pipe, at this time, the semicircular ring 574 is driven to rotate in the annular plate to drive the arc-shaped mounting plate 5753 to move synchronously through the extension plate 5751, so that the grinding plate grinds the surface of the steel pipe to remove the rust on the surface.

[0058] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-diameter steel pipe rust removal device, comprising a bottom plate (1), characterized in that: Both sides of the bottom plate (1) are provided with lifting mechanisms (2), a transverse top plate (3) is provided above the bottom plate (1), and both sides of the bottom plate (1) are provided with vertical support plates (4), the two ends of the transverse top plate (3) are respectively connected to the two vertical support plates (4), and the rear side of the vertical support plates (4) is provided with a rust removal mechanism (5); The lifting mechanism (2) comprises an L-shaped plate (21), the horizontal section of the L-shaped plate (21) is slidably arranged on the bottom plate (1), a supporting platform (22) with a V-shaped upper end is arranged on the horizontal section of the L-shaped plate (21), and a clamping assembly (23) is arranged between the vertical section of the L-shaped plate (21) and the supporting platform (22); The clamping assembly (23) comprises a three-jaw chuck (231), which is used to clamp the end of the steel pipe. A horizontally placed connecting cylinder (232) is provided on one side of the three-jaw chuck (231) facing the vertical section of the L-shaped plate (21), a connecting ring (233) is provided on the outer wall rotation sleeve of the connecting cylinder (232), a lifting assembly (24) connected to the connecting ring (233) is provided on the transverse top plate (3), a vertical bar (25) is provided on the vertical section of the L-shaped plate (21), and a rectangular slide groove (26) is provided on the side of the connecting cylinder (232) facing away from the three-jaw chuck (231), and the rectangular slide groove (26) is slidably matched with the vertical bar (25).

2. A large-diameter steel pipe rust removal device according to claim 1, characterized in that: The lifting assembly (24) comprises a lifting shaft (241) arranged above the horizontal top plate (3), the two ends of the lifting shaft (241) are rotatably arranged on the two vertical support plates (4), a winding disk (242) is provided on the sliding sleeve of the lifting shaft (241), and a connecting rope (243) is connected to the winding disk, and the lower end of the connecting rope (243) is connected to the connecting ring (233).

3. A large-diameter steel pipe rust removal device according to claim 2, characterized in that: A synchronous plate (244) is provided on the top of the L-shaped plate (21), and a circular hole for the connecting rope (243) to pass through is provided on the synchronous plate (244). Synchronous brackets (245) are rotatably provided at both ends of the winding disk (242), and the synchronous brackets (245) are fixed on the synchronous plate (244). A horizontal sliding groove for the horizontal movement of the synchronous brackets (245) is provided on the horizontal top plate (3).

4. A large-diameter steel pipe rust removal device according to claim 1, characterized in that: A circular block (27) is rotatably provided on the vertical section of the L-shaped plate (21), and the circular block (27) is located directly above the vertical bar (25). A plug-in bar (28) which is in the same vertical line as the vertical bar (25) is provided on one side of the circular block (27) facing the center of the bottom plate (1), and the plug-in bar (28) is slidably matched with the rectangular slide groove (26), and an arc-shaped limiting plate (29) is provided on the top of the plug-in bar (28).

5. The large-diameter steel pipe rust removal device according to claim 1, characterized in that: The rust removal mechanism (5) comprises a guide rod (51) arranged at the lower rear side of the horizontal top plate (3), the two ends of the guide rod (51) are respectively connected to the transfer rods (52) arranged at the rear ends of the two sides of the horizontal top plate (3), two movable sliders (53) are slidably arranged on the guide rod (51), an electric push rod (54) is fixedly inserted on the movable slider (53), a vertical plate 1 (55) and a vertical plate 2 (56) are respectively arranged in front of the two movable sliders (53), the output ends of the electric push rods (54) on the two movable sliders (53) are respectively connected to the corresponding vertical plate 1 (55) and the vertical plate 2 (56), a rust grinding unit (57) is arranged on the front side of the vertical plate 1 (55), and a rust corrosion unit (58) is arranged on the front side of the vertical plate 2 (56).

6. A large-diameter steel pipe rust removal device according to claim 5, characterized in that: The rust unit (58) comprises a connecting plate (581), two connecting plates (581) symmetrically distributed up and down are slidably provided on the front side of the second vertical plate (56), and a rectangular hole for the connecting plates (581) to slide up and down is opened on the second vertical plate (56), a two-way push rod (582) is provided on the rear side of the second vertical plate (56), and the two telescopic ends of the two-way push rod (582) are respectively connected to the two connecting plates (581), the front end of the upper connecting plate (581) is provided with an internally hollow extension plate (583), and the bottom of the vertical section of the extension plate (583) is set as an expanded spray plate (584) with an inverted "V" structure, and the front end of the lower connecting plate (581) is provided with a collecting box (585), and the upper end of the collecting box (585) is provided with an arc-shaped collecting frame (586) with a concave surface facing upward.

7. A large-diameter steel pipe rust removal device according to claim 6, characterized in that: The connecting plate (581) is configured as a hollow shell structure, and a water pump (587) is installed on the rear side of the second vertical plate (56). The water outlet of the water pump (587) is connected to the upper connecting plate (581) through a connecting pipe (588), and the water inlet of the water pump (587) is also connected to the lower connecting plate (581) through a connecting pipe (588). The lower connecting plate (581) is connected to the collection box (585), and a detachable filter screen plate (5861) is provided at the bottom of the arc-shaped collection frame (586).

8. The large-diameter steel pipe rust removal device according to claim 6, characterized in that: An arc-shaped supporting plate (5862) is provided in the arc-shaped collecting frame (586), and a sponge layer (5863) is provided on the upper surface of the arc-shaped supporting plate (5862).

9. A large-diameter steel pipe rust removal device according to claim 5, characterized in that: The rust-removing unit (57) comprises a transverse plate (571), wherein the two transverse plates (571) are symmetrically slidably arranged at the front end of the vertical plate (55), and the vertical plate (55) is provided with a strip hole for the transverse plate (571) to slide up and down, and the rear side of the vertical plate (55) is provided with a two-way push rod (572), and the two telescopic ends of the two-way push rod (572) are respectively connected to the two transverse plates (571), and the opposite sides of the front ends of the two transverse plates (571) are provided with semicircular plates (573), and the two semicircular plates (573) are combined to form a complete annular circular plate, and the concave surface of the semicircular plate (573) is slidably provided with a semicircular ring (574), and the semicircular ring (574) rotates in the annular circular plate, and the semicircular ring (574) is provided with a rust-removing component (575).

10. A large-diameter steel pipe rust removal device according to claim 9, characterized in that: The rust-removing assembly (575) comprises an extension plate (5751), the side wall of the semicircular ring (574) is provided with the extension plate (5751), an adjustment rod (5752) is threadedly passed through the extension plate (5751), an arc-shaped mounting plate (5753) is provided at one end of the adjustment rod (5752) facing the center of the annular circular plate, and a rust-removing plate (5754) is detachably mounted on the concave surface of the arc-shaped mounting plate (5753).

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