Pipeline rust removal device

Abstract

The invention discloses a pipeline rust removal device, and relates to the technical field of rust removal, the pipeline rust removal device comprises a base, a fixed vertical plate and a sliding vertical plate, the fixed vertical plate and the sliding vertical plate are arranged on the base, the fixed vertical plate is fixedly connected with the base, the sliding vertical plate is slidably connected with the base through a slide way, and a rotatable pipeline to be derusted is arranged between the fixed vertical plate and the sliding vertical plate; the two ends of the to-be-derusted pipeline are clamped and fixed to the jacking conical heads through pipeline positioning mechanisms, an outer wall grinding mechanism is arranged on the base, an inner wall grinding mechanism is arranged in the to-be-derusted pipeline, and the outer wall grinding mechanism and the inner wall grinding mechanism can operate at the same time or independently. When the pipeline rust removal device is used, a pipeline can be effectively clamped and fixed, the inner wall and the outer wall of the pipeline can be ground and derusted, in addition, the whole pipeline rust removal device can be suitable for pipelines with different pipe diameters, the requirement for derusting of the pipelines with the different pipe diameters is met, and practicability is high.

Description

Technical Field

[0001] The invention relates to the technical field of rust removal, and in particular to a pipeline rust removal device. Background Art

[0002] Rusty pipes will not only make the pipe walls thinner and increase the risk of pipe damage, but the gradually accumulated rust will also reduce the internal space of the pipe, resulting in reduced fluid flow and affecting the normal use of the pipe.

[0003] The invention patent with publication number CN107738167A discloses a device for simultaneously grinding the inner and outer walls of a steel pipe, which solves the technical problem that it is impossible to simultaneously grind the inner and outer walls of steel pipes of different diameters and thicknesses.

[0004] Although the above-mentioned device can grind and remove rust from the inner and outer walls of steel pipes of different diameters and thicknesses at the same time, it is inconvenient to clamp and fix the steel pipe during the grinding and rust removal process. When the steel pipe is in a loose state, it will affect the rust removal efficiency and quality, and the use effect is not ideal. Therefore, there is an urgent need for a rust removal device that can clamp and fix both ends of the pipeline. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems and provide a pipeline rust removal device which can not only effectively clamp and fix the pipeline, but also grind and remove rust from the inner and outer walls of the pipeline. In addition, the whole device can be suitable for different pipe diameters to meet the rust removal needs of pipelines with different pipe diameters and has strong practicality.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is: a pipeline rust removal device, comprising a base and a fixed vertical plate and a sliding vertical plate on the base, the fixed vertical plate is fixedly connected to the base, the sliding vertical plate is slidably connected to the base through a slide, a rotatable pipeline to be rusted is provided between the fixed vertical plate and the sliding vertical plate, the two ends of the pipeline to be rusted are clamped and fixed by a pipeline positioning mechanism and a tightening cone head, an outer wall grinding mechanism is provided on the base, and an inner wall grinding mechanism is provided in the pipeline to be rusted, and the outer wall grinding mechanism and the inner wall grinding mechanism can operate simultaneously or separately.

[0007] Preferably, the pipe positioning mechanism includes a positioning column, and a plurality of upward-tilted elastic fins are arranged in an array around the positioning column. Limiting plates are provided on both sides of the bottom of the elastic fins, and a pluggable trapezoidal wedge is provided between the two limiting plates. When a plurality of the trapezoidal wedges are inserted into the elastic fins at the same time, the elastic fins are tilted upward to abut against the end of the pipe to be polished.

[0008] Preferably, the positioning column is provided with a driving shaft and a fixed disk on the side away from the pipe to be derusted, and a through hole is provided at the center of the fixed disk, one end of the driving shaft is coaxially fixedly connected to the positioning column, and the other end extends outward through the fixed disk and the fixed vertical plate at the through hole, and the extended driving shaft is transmission-connected to the driving motor, and the fixed disk is fixedly connected to a plurality of trapezoidal wedges, and a spring 1 and a locking bolt are provided between the positioning column and the fixed disk, one end of the spring 1 is fixedly connected to the positioning column, and the other end is fixedly connected to the fixed disk, the locking bolt passes through the fixed disk and cooperates with the locking nut, and tightening the locking nut causes the trapezoidal wedge to move into the elastic fin.

[0009] Preferably, the surface of the elastic fin and the surface of the trapezoidal wedge are both provided with anti-slip protrusions.

[0010] Preferably, a bearing seat is provided at one end of the tightening cone head, and the tightening cone head is rotatably connected to the sliding vertical plate through the bearing seat. The pipe to be derusted is clamped and fixed between the tightening cone head and the raised elastic fins, and the driving shaft, positioning column, pipe to be polished and the tightening cone head are all located on the same axis.

[0011] Preferably, the outer wall grinding mechanism includes two groups, and the two groups of outer wall grinding mechanisms are symmetrically arranged on both sides of the pipe to be derusted, and the outer wall grinding mechanism includes a sliding seat, a vertically arranged moving plate is provided above the sliding seat, a driving motor 2 is provided on one side of the top of the moving plate, and an external rust removal disk connected to the driving motor 2 is provided on the side close to the pipe to be derusted, and the sliding seat can translate on the base.

[0012] Preferably, the surface of the base is provided with a guide rail along its length direction, and the sliding seat can move along the guide rail. A connecting plate is provided between the two sliding seats, and a screw rod is provided in the connecting plate to penetrate and cooperate with the screw rod. A screw rod base is provided on the base, one end of the screw rod is rotatably connected to the screw rod base, and the other end passes through the fixed vertical plate and is transmission-connected to the servo motor on the outside. After the servo motor is running, it drives the sliding seat to reciprocate.

[0013] Preferably, a slide groove is provided on the surface of the sliding seat, and a slider cooperating with the slide groove is provided on the bottom of the movable plate. The movable plate moves along the slide groove through the slider, and the movable plate adjusts the distance between the external rust removal plate and the pipe to be rust removed.

[0014] Preferably, the inner wall grinding mechanism includes an external fixed cylinder, an internal fixed cylinder, an optical axis and an internal rust removal disk; the external fixed cylinder is coaxially arranged with the internal fixed cylinder, one end of the optical axis is semi-spherical and extends toward the center of the inner fixed cylinder, the other end passes through the external fixed cylinder and the internal fixed cylinder to extend outward and is fixedly connected to the inner rust removal disk, the outer surface of the inner rust removal disk is in an arc shape, and an adjusting cone head for adjusting the extension length of the optical axis is also provided on the outside of the internal fixed cylinder, the cross-section of the adjusting cone head is conical, a fixing screw is provided at the center of the inner fixed cylinder, the fixing screw passes through the adjusting cone head and extends outward, and a plurality of groups of ramp slides are provided on the circumference of the adjusting cone head, the ramp slides correspond one-to-one to the optical axis, and the end of the optical axis always falls in the ramp slide.

[0015] Preferably, the inner wall grinding mechanism also includes spring 2 and an extension shaft, wherein spring 2 is fixed between the bottom surface of the inner rust removal disk and the circumference of the outer fixed cylinder, one end of the extension shaft is connected to the side wall of the fixed cylinder, and the other end passes through the tightening cone head and the sliding vertical plate at the through hole and extends outward.

[0016] The present invention discloses a pipeline rust removal device, comprising a base and a fixed vertical plate and a sliding vertical plate on the base, wherein the fixed vertical plate is fixedly connected to the base, the sliding vertical plate is slidably connected to the base via a slideway, a rotatable pipeline to be rust-removed is arranged between the fixed vertical plate and the sliding vertical plate, both ends of the pipeline to be rust-removed are clamped and fixed by a pipeline positioning mechanism and a top tightening cone head, an outer wall grinding mechanism is arranged on the base, an inner wall grinding mechanism is arranged in the pipeline to be rust-removed, and the outer wall grinding mechanism and the inner wall grinding mechanism can operate simultaneously or separately; compared with the prior art, the pipeline rust removal device can not only effectively clamp and fix the pipeline when in use, but also grind and remove rust from the inner and outer walls of the pipeline, and in addition, the whole can be suitable for different pipe diameters to meet the rust removal of pipelines with different pipe diameters, and has the beneficial effect of strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of a pipeline rust removal device of the present invention is shown in FIG. Figure 1 .

[0018] Figure 2 The overall structure of a pipeline rust removal device of the present invention is shown in FIG. Figure 2 .

[0019] Figure 3 The present invention is a schematic diagram of the local structure of a tightening cone head in a pipeline rust removal device.

[0020] Figure 4 For the present invention Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0021] Figure 5The structure diagram of the pipeline positioning mechanism in the pipeline rust removal device of the present invention is shown in FIG. Figure 1 .

[0022] Figure 6 The structure diagram of the pipeline positioning mechanism in the pipeline rust removal device of the present invention is shown in FIG. Figure 2 .

[0023] Figure 7 The structure diagram of the pipeline positioning mechanism in the pipeline rust removal device of the present invention is shown in FIG. Figure 3 .

[0024] Figure 8 The structure diagram of the inner wall grinding mechanism in a pipeline rust removal device of the present invention is shown in FIG. Figure 1 .

[0025] Fig. 9 The structure diagram of the inner wall grinding mechanism in a pipeline rust removal device of the present invention is shown in FIG. Figure 2 .

[0026] Fig.10 The structure diagram of the inner wall grinding mechanism in a pipeline rust removal device of the present invention is shown in FIG. Figure 3 .

[0027] Fig.11 The structure diagram of the inner wall grinding mechanism in a pipeline rust removal device of the present invention is shown in FIG. Figure 4 .

[0028] In the figure: 1, base; 11, slideway; 2, fixed vertical plate; 21, sliding vertical plate; 3, pipeline to be derusted; 4, pipeline positioning mechanism; 41, positioning column; 42, elastic fin; 43, limit plate; 44, trapezoidal wedge; 441, anti-slip protrusion; 45, fixed plate; 46, spring 1; 47, locking bolt; 48, locking nut; 49, driving shaft; 410, through hole; 5, top tightening cone head; 51, through hole; 52, bearing seat; 6, driving motor 1; 7. Servo motor; 8. Inner wall grinding mechanism; 81. External fixed cylinder; 82. Internal fixed cylinder; 83. Optical axis; 84. Internal rust removal disk; 85. Second spring; 86. Adjusting cone head; 861. Inclined slideway; 87. Fixed screw; 88. Extension shaft; 9. Outer wall grinding mechanism; 91. Sliding seat; 92. Guide rail; 93. Slide groove; 94. Moving plate; 95. Second driving motor; 96. External rust removal disk; 97. Connecting plate; 98. Screw; 99. Screw support. DETAILED DESCRIPTION

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. The accompanying drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and thus only show the components related to the present invention.

[0030] Please refer to Figure 1-11A pipeline rust removal device comprises a base 1 and a fixed vertical plate 2 and a sliding vertical plate 21 on the base 1, wherein the fixed vertical plate 2 is fixedly connected to the base 1, and the sliding vertical plate 21 is slidably connected to the base 1 through a slideway 11, wherein the bottom surface of the sliding vertical plate 21 is provided with a slider that cooperates with the slideway 11, and when the position of the sliding vertical plate 21 is determined, it is fixed by bolts, and a rotatable pipeline 3 to be rust-removed is provided between the fixed vertical plate 2 and the sliding vertical plate 21, and the two ends of the pipeline 3 to be rust-removed are clamped and fixed by a pipeline positioning mechanism 4 and a tightening cone head 5, an outer wall grinding mechanism 9 is provided on the base 1, and an inner wall grinding mechanism 8 is provided in the pipeline 3 to be rust-removed, and the outer wall grinding mechanism 9 and the inner wall grinding mechanism 8 can operate simultaneously or separately.

[0031] Before the pipeline is derusted and polished, the sliding vertical plate 21 is first moved outward to increase the distance between the fixed vertical plate 2 and the sliding vertical plate 21, and then the pipeline 3 to be derusted is hoisted between the pipeline positioning mechanism 4 and the tightening cone head 5 by an external lifting device. After the position is determined, the sliding vertical plate 21 is moved again, so that the pipeline positioning mechanism 4 and the tightening cone head 5 clamp and fix the pipeline 3 to be derusted. After clamping and fixing, it can be polished and derusted by the outer wall polishing mechanism 9 and the inner wall polishing mechanism 8, thereby meeting the pipeline rust removal requirements.

[0032] In this embodiment, the pipeline positioning mechanism 4 includes a positioning column 41, and a plurality of upward-tilted elastic fins 42 are arranged in an array around the positioning column 41. Limiting plates 43 are arranged on both sides of the bottom of the elastic fins 42. A pluggable trapezoidal wedge 44 is arranged between the two limiting plates 43. The trapezoidal wedge is in the shape of a right-angled trapezoid, and its long right-angled side is in contact with the outer wall of the positioning column. When a plurality of the trapezoidal wedges 44 are inserted into the elastic fins 42 at the same time, the elastic fins 42 are tilted upward to abut against the end of the pipeline 3 to be derusted.

[0033] Please refer again Figure 5-7 ; When the trapezoidal wedge block 44 is continuously inserted into the elastic fin 42, the elastic fin 42 will continue to tilt upward through the inclined surface of the trapezoidal wedge block 44. At this time, the tilted elastic fin will be evenly supported in the port of the pipe 3 to be derusted; since the tilting angle of the elastic fin 42 is adjusted by the trapezoidal wedge block 44, the trapezoidal wedge block 44 can be inserted into different lengths to support the pipes 3 to be derusted with different diameters, which can not only position the pipes, but also greatly improve the scope of application and meet the use of pipes with different diameters.

[0034] In addition, the positioning column 41 is provided with a driving shaft 49 and a fixed disk 45 on the side away from the pipe 3 to be derusted, and a through hole 410 is provided at the center of the fixed disk 45. One end of the driving shaft 49 is coaxially fixedly connected with the positioning column 41, and the other end extends outward through the fixed disk 45 and the fixed vertical plate 2 at the through hole 410. The extended driving shaft 49 is transmission-connected to the driving motor 6, and the fixed disk 45 is fixedly connected to a plurality of trapezoidal wedges 44. Since one end of the pipe 3 to be derusted is supported and positioned by a plurality of elastic fins and the other end is limited by a tightening cone head, when the driving motor 6 is running, the positioning column 41, the pipe 3 to be derusted and the tightening cone head 5 rotate together, and the rotating pipe is convenient for grinding and derusting.

[0035] A plurality of sets of springs 46 and locking bolts 47 are provided between the positioning column 41 and the fixed disk 45. One end of the spring 46 is fixedly connected to the positioning column 41, and the other end is fixedly connected to the fixed disk 45. The locking bolt 47 passes through the fixed disk 45 and cooperates with the locking nut 48. Since the fixed disk 45 is fixedly connected to a plurality of trapezoidal wedges 44, and the fixed disk 45 is elastically supported by the spring 46, when the locking nut 48 is tightened, the fixed disk 45 will move toward the positioning column 41. After the positioning column 41 moves, the trapezoidal wedge 44 moves into the elastic fin 42, so that the elastic fin 42 further tilts upward, and after tilting, it supports the pipeline port.

[0036] That is to say, after loosening the locking nut 48, the tension of the spring 1 causes the trapezoidal wedge 44 to move outward. After the trapezoidal wedge moves outward, the tilting angle of the elastic fin 42 becomes smaller, which is suitable for pipes with smaller diameters. Similarly, after tightening the locking nut 48, the spring 1 is compressed, and the trapezoidal wedge 44 moves inwardly of the elastic fin 42 to increase the tilting angle, which is suitable for pipes with larger diameters. In this embodiment, the setting of the spring 1 46 and the locking bolt 47 can not only fix the trapezoidal wedge 44 inserted into the elastic fin 42, but also quickly adjust the tilting angle of the elastic fin 42 so as to support pipes with different diameters.

[0037] In order to further improve the positioning stability, anti-slip protrusions 441 may be provided on the surface of the elastic fin 42 and the surface of the trapezoidal wedge block 44 to increase the friction and improve the fastening performance.

[0038] In this embodiment, the cross-section of the tightening cone head 5 is in the shape of a truncated cone, and a bearing seat 52 is provided at one end of the tightening cone head 5. The tightening cone head 5 is rotatably connected to the sliding vertical plate 21 through the bearing seat 52. One end of the pipe 3 to be derusted is sleeved on the tightening cone head 5, and finally clamped and fixed between the tightening cone head 5 and the raised elastic fin 42. The driving shaft 49, the positioning column 41, the pipe 3 to be derusted and the tightening cone head 5 are all located on the same axis to ensure the stable rotation of the derusted pipe, which is convenient for subsequent grinding and rust removal.

[0039] Please refer again Figure 1 and Figure 4 In this embodiment, the outer wall grinding mechanism 9 includes two groups, and the two groups of outer wall grinding mechanisms 9 are symmetrically arranged on both sides of the pipe 3 to be derusted. The outer wall grinding mechanism 9 includes a sliding seat 91, and a vertically set moving plate 94 is provided above the sliding seat 91. A driving motor 2 95 is provided on one side of the top of the moving plate 94, and an external rust removal disc 96 connected to the driving motor 2 95 is provided on the side close to the pipe 3 to be derusted. The sliding seat 91 can translate on the base 1.

[0040] During the rust removal and grinding process, the driving motor 1 6 is driven, and the pipe 3 to be rusted begins to rotate under the clamping action of the pipe positioning mechanism 4 and the tightening cone head 5. After the rust-removed pipe 3 rotates, the driving motor 2 95 is operated, and after the operation, the external rust removal disk 96 rotates at a high speed; since the sliding seat 91 can translate along the base 1, the pipe 3 to be rusted rotates continuously during the translation process, so that the outer wall of the pipe 3 to be rusted is continuously polished and rust-removed.

[0041] In order to further improve the grinding and rust removal effect of the outer wall; a guide rail 92 is provided on the surface of the base 1 along its own length direction, and the sliding seat 91 can move along the guide rail 92, and a connecting plate 97 is provided between the two sliding seats 91, and a screw rod 98 is provided in the connecting plate 97 to penetrate and cooperate with it, and a screw rod support 99 is provided on the base 1, one end of the screw rod 98 is rotatably connected to the screw rod support 99, and the other end passes through the fixed vertical plate 2 and is connected to the servo motor 7 on the outside for transmission, and the servo motor 7 drives the sliding seat 91 to reciprocate after operation; in addition, a slide groove 93 is provided on the surface of the sliding seat 91, and a slider cooperating with the slide groove 93 is provided at the bottom of the movable plate 94, and the movable plate 94 moves along the slide groove 93 through the slider, and the movement setting of the movable plate 94 adjusts the distance between the external rust removal plate 96 and the pipe 3 to be rusted.

[0042] When grinding and derusting the outer wall, the drive motor 1 6, the drive motor 2 95 and the servo motor 7 operate simultaneously. After the drive motor 1 6 operates, the pipe 3 to be derusted rotates, after the drive motor 2 95 operates, the external derusting plate 96 rotates, and after the servo motor 7 operates, the screw rod 98 rotates. Since the sliding seat 91 moves back and forth, the outer wall of the pipe 3 to be derusted is grinded and derusted by two reciprocating external derusting plates 96, which can greatly improve the rust removal efficiency.

[0043] Based on the above embodiment, the external rust removal plate 96 can be directly opposite to the pipe 3 to be rusted, or it can be sideways to the pipe 3 to be rusted, as long as the external rust removal plate 96 is in contact with the pipe 3 to be rusted.

[0044] Based on the above embodiment, the movable plate 94 can also be configured to be liftable to facilitate adjusting the height of the external rust removal tray 96 .

[0045] In some embodiments, the inner wall grinding mechanism 8 includes an outer fixed cylinder 81, an inner fixed cylinder 82, an optical axis 83 and an inner rust removal disk 84. Figure 8-11 The outer fixed tube 81 is coaxially arranged with the inner fixed tube 82, one end of the optical axis 83 is semi-spherical and extends toward the center of the inner fixed tube 82, and the other end passes through the outer fixed tube 81 and the inner fixed tube 82 to extend outward and be fixedly connected with the inner rust removal plate 84, and the outer surface of the inner rust removal plate 84 is in an arc shape.

[0046] The bottom circumference of the optical axis 83 is also provided with a blocking block to prevent the bottom end of the optical axis from escaping from the inner fixing ring.

[0047] The inner wall grinding mechanism 8 is arranged inside the pipe 3 to be derusted. During use, the outer wall of the inner rust removal plate 84 contacts the inner wall of the pipe 3 to be derusted. Since the pipe 3 to be derusted rotates continuously, the inner wall of the pipe 3 to be derusted can be ground and derusted by multiple inner rust removal plates 84.

[0048] In order to increase the inner wall rust removal area, an extension shaft 88 is provided on the outer wall of the fixed cylinder, one end of the extension shaft 88 is detachably connected to the side wall of the fixed cylinder, and the other end passes through the tightening cone head 5 and the sliding vertical plate 21 at the through hole 51 and extends outward. When in use, the extension shaft 88 is first inserted into the tightening cone head 5, and then the inner wall grinding mechanism is fixed to the extension shaft through the flange; wherein the end of the extension shaft 88 is connected to an external hydraulic jacking device or other propulsion equipment; after the connection, the external hydraulic jacking device or other propulsion equipment can push or pull the extension shaft 88, and after the extension shaft 88 is pushed or pulled, it can drive the inner wall grinding mechanism 8 to extend and retract in the pipe 3 to be derusted; the inner wall grinding mechanism 8 extends and retracts in the pipe 3 to be derusted and cooperates with the rotation of the pipe 3 to be derusted, so the inner wall of the pipe 3 to be derusted can be completely polished and derusted; after the inner wall grinding is completed, the entire pipe port can be pushed and disassembled.

[0049] Since the plurality of inner rust removal plates 84 are arranged inside the pipe 3 to be rust-removed, when the diameter of the pipe 3 to be rust-removed is too large, the inner rust removal plates 84 will not contact the inner wall of the pipe 3 to be rust-removed, resulting in the inability to grind and remove rust from the inner wall.

[0050] To avoid the above phenomenon, an adjusting cone head 86 for adjusting the extension length of the optical axis 83 is further provided on the outer side of the inner fixed cylinder 82. The cross-section of the adjusting cone head 86 is conical. A fixing screw 87 is provided at the center of the inner fixed cylinder 82. The fixing screw 87 extends outward through the adjusting cone head 86. A plurality of groups of inclined slideways 861 are provided on the circumference of the adjusting cone head 86. The inclined slideways 861 correspond one-to-one to the optical axis 83, and the end of the optical axis 83 always falls in the inclined slideway 861.

[0051] When the adjusting cone head 86 continues to move into the inner fixed tube 82, the ramp slide 861 will push the corresponding optical axis 83 by its own slope. After being pushed, the optical axis 83 will further extend out of the outer fixed tube 81. When all the optical axes are extended, multiple internal rust removal plates 84 can contact pipes with larger inner diameters, thereby avoiding the phenomenon that the internal rust removal plates 84 cannot contact the inner wall of the pipe 3 to be derusted.

[0052] In order to realize the automatic retraction of the optical axis 83, the inner wall grinding mechanism 8 also includes a second spring 85, and the second spring 85 is fixed between the bottom surface of the inner rust removal disk 84 and the circumference of the outer fixed tube 81; when the adjusting cone head 86 continues to move into the inner fixed tube 82, the optical axis 83 extends and the second spring 85 is stretched at the same time. After the position of the adjusting cone head 86 is determined, it is tightened by the nut and the fixing screw 87. At this time, the extended length of the inner rust removal disk 84 remains stable and can continuously contact the inner wall of the pipeline; when the whole is used for a pipeline with a smaller inner diameter, the nut is loosened to move the adjusting cone head 86 outward. At this time, the second spring 85 contracts to pull the optical axis 83 and the inner rust removal disk 84 back, and the overall outer diameter is reduced. It is used for inner diameter grinding and rust removal of pipes with smaller diameters, which can increase the scope of application.

[0053] The setting of spring 2 85 can not only realize the stable fixation of the internal rust removal plate 84, but also realize the rapid retraction of multiple internal rust removal plates 84; after loosening the nut matched with the fixing screw 87, the pulling force of spring 2 85 makes the corresponding optical axis 83 push against the ramp slide, so that the adjusting cone head 86 can be quickly moved outward, making it easy to remove the entire thing from the pipeline.

[0054] Based on the above embodiment, both the outer rust removal plate 96 and the inner rust removal plate 84 are provided with detachable sandpaper, steel brush or other grinding tools.

[0055] Based on the above embodiments, the grinding sandpaper, grinding steel brush or other grinding tools can be replaced according to the degree of rust or material to achieve coarse grinding or fine grinding.

[0056] Based on the above embodiment, the device as a whole can also be set to add an automatic control program and an emergency brake button. The automatic control program is used to control the overall speed, operating time and other parameters to reduce manual intervention; the emergency brake button can quickly stop the equipment operation in an emergency to ensure the personal safety of the operator.

[0057] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A pipeline rust removal device, characterized in that: It comprises a base and a fixed vertical plate and a sliding vertical plate on the base, wherein the fixed vertical plate is fixedly connected to the base, the sliding vertical plate is slidably connected to the base via a slideway, a rotatable pipe to be derusted is arranged between the fixed vertical plate and the sliding vertical plate, both ends of the pipe to be derusted are clamped and fixed by a pipe positioning mechanism and a tightening cone head, an outer wall grinding mechanism is arranged on the base, an inner wall grinding mechanism is arranged inside the pipe to be derusted, and the outer wall grinding mechanism and the inner wall grinding mechanism can operate simultaneously or separately.

2. The pipeline rust removal device according to claim 1, characterized in that: The pipeline positioning mechanism includes a positioning column, and a plurality of upward-tilted elastic fins are arranged in an array around the positioning column. Limiting plates are arranged on both sides of the bottom of the elastic fins, and a pluggable trapezoidal wedge is arranged between the two limiting plates. When a plurality of the trapezoidal wedges are inserted into the elastic fins at the same time, the elastic fins are tilted upwards to abut against the end of the pipeline to be polished.

3. The pipeline rust removal device according to claim 2, characterized in that: The positioning column is provided with a driving shaft and a fixed disk on the side away from the pipe to be derusted, and a through hole is provided at the center of the fixed disk, one end of the driving shaft is coaxially fixedly connected to the positioning column, and the other end extends outward through the fixed disk and the fixed vertical plate at the through hole, and the extended driving shaft is transmission connected to the driving motor, and the fixed disk is fixedly connected to a plurality of trapezoidal wedges, and a spring 1 and a locking bolt are provided between the positioning column and the fixed disk, one end of the spring 1 is fixedly connected to the positioning column, and the other end is fixedly connected to the fixed disk, the locking bolt passes through the fixed disk and cooperates with the locking nut, and tightening the locking nut causes the trapezoidal wedge to move into the elastic fin.

4. The pipeline rust removal device according to claim 2 or 3, characterized in that: The surfaces of the elastic fins and the surfaces of the trapezoidal wedge blocks are both provided with anti-slip protrusions.

5. The pipeline rust removal device according to claim 3, characterized in that: A bearing seat is provided at one end of the tightening cone head, and the tightening cone head is rotatably connected to the sliding vertical plate through the bearing seat. The pipe to be derusted is clamped and fixed between the tightening cone head and the raised elastic fins. The driving shaft, the positioning column, the pipe to be polished and the tightening cone head are all located on the same axis.

6. The pipeline rust removal device according to claim 1, characterized in that: The outer wall grinding mechanism includes two groups, and the two groups of outer wall grinding mechanisms are symmetrically arranged on both sides of the pipe to be derusted. The outer wall grinding mechanism includes a sliding seat, a vertically set moving plate is provided above the sliding seat, a driving motor 2 is provided on one side of the top of the moving plate, and an external rust removal disk connected to the driving motor 2 is provided on the side close to the pipe to be derusted, and the sliding seat can translate on the base.

7. The pipeline rust removal device according to claim 6, characterized in that: The surface of the base is provided with a guide rail along its length direction, and the sliding seat can move along the guide rail. A connecting plate is provided between the two sliding seats, and a screw rod is provided in the connecting plate to penetrate and cooperate with the screw rod. A screw rod base is provided on the base, one end of the screw rod is rotatably connected to the screw rod base, and the other end passes through the fixed vertical plate and is transmission-connected to the servo motor on the outside. After the servo motor is running, it drives the sliding seat to reciprocate.

8. The pipeline rust removal device according to claim 7, characterized in that: A slide groove is provided on the surface of the sliding seat, and a slider matched with the slide groove is provided at the bottom of the moving plate. The moving plate moves along the slide groove through the slider, and the moving plate adjusts the distance between the external rust removal plate and the pipe to be rust removed.

9. The pipeline rust removal device according to claim 1, characterized in that: The inner wall grinding mechanism includes an outer fixed cylinder, an inner fixed cylinder, an optical axis and an inner rust removal disk; the outer fixed cylinder is coaxially arranged with the inner fixed cylinder, one end of the optical axis is semi-spherical and extends to the center of the inner fixed cylinder, the other end passes through the outer fixed cylinder and the inner fixed cylinder to extend outward and is fixedly connected to the inner rust removal disk, the outer surface of the inner rust removal disk is in an arc shape, and an adjusting cone head for adjusting the extension length of the optical axis is also provided on the outer side of the inner fixed cylinder, the cross-section of the adjusting cone head is conical, a fixing screw is provided at the center of the inner fixed cylinder, the fixing screw passes through the adjusting cone head and extends outward, and a plurality of groups of ramp slides are provided on the circumference of the adjusting cone head, the ramp slides correspond one-to-one to the optical axis, and the end of the optical axis always falls in the ramp slide.

10. The pipeline rust removal device according to claim 9, characterized in that: The inner wall grinding mechanism also includes spring 2 and an extension shaft. Spring 2 is fixed between the bottom surface of the inner rust removal disk and the circumference of the outer fixed cylinder. One end of the extension shaft is connected to the side wall of the fixed cylinder, and the other end passes through the tightening cone head and the sliding vertical plate at the through hole and extends outward.

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