Rust removal device for pipeline robot

Abstract

The utility model discloses a derusting device for a pipeline robot, which relates to the technical field of pipeline cleaning and comprises a fixed base, and a guide plate is mounted at one end of the fixed base; the telescopic unit comprises an elastic piece arranged on the end face of the flow guide plate, a movable sleeve arranged at the other end of the elastic piece and a guide rod arranged on the inner side of the movable sleeve; the end of the movable sleeve is connected with a grinding head, and the guide rod rotates to drive the grinding head to reciprocate in the vertical direction. The movable sleeve moves in the vertical direction, and in the process that the movable sleeve reciprocates in the vertical direction, the deformation quantity of the movable sleeve extruding the elastic piece also changes periodically, so that the pressure applied to the position of a polishing point can be effectively changed, and the polishing device adapts to polishing of corrosion pits with different depths; and the height of the grinding head is continuously changed, so that high local grinding head loss in the grinding process is effectively avoided, and the service life of the grinding head is prolonged to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of pipeline cleaning technology, and in particular to a rust removal device for pipeline robots. Background Technology

[0002] In industrial pipeline systems, localized corrosion pits (up to several millimeters deep) formed on the inner wall of pipes due to media corrosion, oxidation, or mechanical wear are the main cause of leaks or structural failures, and regular cleaning and maintenance are necessary to ensure safe operation.

[0003] Traditional cleaning techniques often employ mechanical grinding. Mechanical grinding equipment uses constant pressure control and a telescopic mechanism to drive a high-speed rotating grinding head to grind the corrosion points. This results in excessive cutting of the substrate in shallow pit areas, while in deep pit areas, insufficient pressure requires repeated work, leading to low efficiency and numerous problems in the grinding effect on pipes. Summary of the Invention

[0004] Therefore, the technical problem to be solved by this utility model is that: existing mechanical grinding equipment maintains a constant pressure during the grinding process, and the constant pressure grinding for corrosion pits of different depths on the inner wall of the pipe results in poor cleaning effect on the inner wall of the pipe.

[0005] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes a rust removal device for pipeline robots, which includes a fixed base and a guide plate installed at one end of the fixed base;

[0006] The telescopic unit includes an elastic element disposed on the end face of the guide plate, a guide rod disposed on the other end of the elastic element, and a movable sleeve disposed on the outside of the guide rod;

[0007] The movable sleeve is connected to a grinding head at one end, and the guide rod rotates to drive the grinding head to reciprocate along the vertical direction;

[0008] The telescopic unit drives the grinding head to move back and forth. During the grinding process, the grinding head can move back and forth as it rotates, thus making reciprocating periodic contact with the grinding points, effectively adapting to the problem of varying depths of corrosion pits on the inner wall of the pipeline.

[0009] In a preferred embodiment of the rust removal device for pipeline robots described in this utility model: the fixed base further includes a crossbar arranged opposite to the guide plate;

[0010] The telescopic unit further includes a first bevel gear, a first rotating shaft sleeved at the center of the first bevel gear, a second bevel gear meshing with the first bevel gear, and a second rotating shaft sleeved at the center of the second bevel gear;

[0011] The crossbar supports the first pivot through symmetrical side walls;

[0012] The crossbeam provides support for the first rotating shaft, and the first and second bevel gears mesh to facilitate the motor driving the second bevel gear to rotate, thus providing a suitable installation position for the motor.

[0013] In a preferred embodiment of the rust removal device for pipeline robots described in this utility model: the second rotating shaft passes through the fixed base and extends to its outer side, and the second rotating shaft is connected to the fixed base through a bearing;

[0014] The second rotating shaft is connected to the guide rod;

[0015] The guide rod can be effectively driven to rotate by connecting the second shaft to the second bevel gear and rotating synchronously with the second bevel gear.

[0016] In a preferred embodiment of the rust removal device for pipeline robots described in this utility model: one end of the elastic element is connected to the end face of the fixed base, and the other end is connected to the end face of the movable sleeve.

[0017] The elastic element is located in the center of the guide plate;

[0018] The second pivot passes through the elastic element and extends to the inside of the movable sleeve;

[0019] By using an elastic element positioned between the fixed base and the movable sleeve, the positive pressure exerted on the movable sleeve by the expansion and contraction of the elastic element can be flexibly changed when the grinding head contacts the corrosion pits on the inner wall of the pipe.

[0020] In a preferred embodiment of the rust removal device for pipeline robots described in this utility model: the guide rod includes a protrusion disposed on its side wall;

[0021] The inner wall of the movable sleeve is provided with an arc-shaped groove;

[0022] The protrusion is adapted to the arc-shaped groove, and the protrusion penetrates the arc-shaped groove and extends into its interior;

[0023] The outer wall of the guide rod is provided with a protrusion, which moves inside the arc-shaped groove. As the guide rod rotates, the protrusion squeezes the inner wall of the arc-shaped groove, thereby driving the movable sleeve to move in the vertical direction.

[0024] In a preferred embodiment of the rust removal device for pipeline robots described in this utility model: a groove is provided on the inner side of the guide plate;

[0025] The movable sleeve includes a slider disposed on its side wall;

[0026] The slider is adapted to the slide groove, and there is a sliding fit between the slider and the slide groove;

[0027] The cooperation between the slider and the groove further restricts the movement direction of the movable block, thereby ensuring that the rotation of the guide rod can drive the movable sleeve to move in the vertical direction.

[0028] In a preferred embodiment of the rust removal device for pipeline robots described in this utility model: the slider cooperates with the slide groove to restrict the slider from moving in the vertical direction;

[0029] The protrusion engages with the arc-shaped groove, thereby driving the movable sleeve to reciprocate.

[0030] The arc-shaped groove is opened around the inner circumference of the movable sleeve, and the two ends of the arc-shaped groove form a closed loop; the guide rod can drive the movable sleeve to move up and down for multiple cycles with one rotation.

[0031] In a preferred embodiment of the rust removal device for pipeline robots described in this utility model: the movable sleeve can reciprocate along the vertical direction to drive the elastic element to extend and compress;

[0032] The movable sleeve moves vertically to control the force of the compression elastic element, thereby flexibly changing the pressure at the end of the grinding head.

[0033] In a preferred embodiment of the rust removal device for pipeline robots described in this utility model: a mobile trolley, wherein the fixed base is mounted on the frame of the mobile trolley;

[0034] An electric motor, the output end of which is connected to the first rotating shaft;

[0035] The telescopic rod has a piston section connected to the cross frame, and the telescopic rod is connected to the mobile trolley via a fixed frame;

[0036] The mobile trolley provides sufficient installation space for the rust removal device, ensuring that the rust removal device can be stably installed on the mobile trolley. The rust removal device is driven by a motor to rotate the grinding head, and the grinding head is moved close to the inner wall of the pipe by a telescopic rod.

[0037] The beneficial effects of this utility model are as follows: the movable sleeve moves along the vertical direction, and during the reciprocating movement of the movable sleeve along the vertical direction, the deformation of its extruding elastic element also changes periodically, thereby effectively changing the pressure applied to the grinding point, thus adapting to the grinding of corrosion pits of different depths; moreover, the constantly changing height of the grinding head also effectively avoids high wear of the grinding head in some areas during the grinding process, and extends the service life of the grinding head to a certain extent. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model, and are not intended to limit the utility model.

[0039] Figure 1 A schematic diagram of the rust removal mechanism is shown;

[0040] Figure 2 The connection structure diagram of the fixed base and the telescopic unit is shown;

[0041] Figure 3 An exploded view of the telescopic unit is shown.

[0042] Figure 4 A half-sectional view of the telescopic unit is shown;

[0043] Figure 5 A schematic diagram of the rust removal mechanism and robot's rotating structure is shown. Detailed Implementation

[0044] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0045] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0046] Reference Figures 1-3This embodiment provides a rust removal device for a pipeline robot, including a fixed base 11, which is fixed to the frame of the pipeline robot and moves synchronously with the pipeline robot. The fixed base 11 has a U-shaped cross-section. One end of an elastic element 25 is connected to the fixed base 11, and the elastic element 25 is positioned in the middle of two sets of opposing guide plates 112. The other end of the elastic element 25 is connected to a movable sleeve 27. During installation, the elastic element 25 is positioned between the fixed base 11 and the movable sleeve 27. When the movable sleeve 27 moves vertically, the compression of the elastic element 25 also changes as the movable sleeve 27 moves, resulting in different magnitudes of the reverse force applied by the elastic element 25. This ensures that the pressure of the grinding head 3 contacting the corrosion pits on the inner wall of the pipeline is different. By using varying positive pressure to contact the location of the corrosion pits, the cleaning effect on the corrosion pits on the inner wall of the pipeline can be further improved.

[0047] Furthermore, in order to further satisfy the requirement that the movable sleeve 27 can move in the vertical direction, a guide rod 26 is installed inside the movable sleeve 27. During the rotation of the guide rod 26, the movable sleeve 27 can be driven to reciprocate in the vertical direction. The movement of the movable sleeve 27 can change the squeezing force on the elastic element 25, thereby effectively controlling the positive pressure generated when the grinding head 3 comes into contact with the corrosion pits on the inner wall of the pipe.

[0048] Specifically, the end of the movable sleeve 27 is also equipped with a grinding head 3, which consists of a drive assembly and a grinding wheel. The drive assembly drives the grinding wheel to rotate at high speed, thereby removing rust from the corrosion pits on the inner wall of the pipe to prevent the corrosion of the inner wall of the pipe from worsening.

[0049] In use, the guide rod 26 rotates to move the movable sleeve 27. The change in the height of the movable sleeve 27 along the vertical direction affects the amount of compression of the elastic element 25, thereby changing the force exerted on the grinding head 3 by the elastic potential energy released by the elastic element 25. This allows for adjustment of the normal pressure of the grinding head 3 during the grinding process of corrosion pits. The periodically changing normal pressure can better adapt to the rust removal work of pipeline corrosion pits, ensuring efficient cleaning of the pipeline inner wall; furthermore, it effectively avoids the problem of excessive wear of the grinding wheel in certain areas.

[0050] refer to Figures 1-5In one embodiment provided in this application, a fixed base 11 is included, which secures the guide plate 112 and the crossbeam 111, with the guide plate 112 and the crossbeam 111 located at opposite end faces of the fixed base 11. The crossbeam 111 mainly supports the first rotating shaft 22 and the first bevel gear 21, with the first bevel gear 21 mounted on the inner wall of the crossbeam 111. The first rotating shaft 22 is sleeved at the center of the first bevel gear 21, with one end of the first rotating shaft 22 penetrating the crossbeam 111 and extending to its outer side. The side wall of the crossbeam 111 provides good support for the first rotating shaft 22.

[0051] The second bevel gear 23 meshes with the first bevel gear 21, and through the cooperation between the first bevel gear 21 and the second bevel gear 23, the horizontal rotation can be converted into the vertical rotation; through the cooperation between the second bevel gear 23 and the first bevel gear 21, a suitable installation position can be provided for the motor, and the drive between the various components can be ensured without being affected.

[0052] The second bevel gear 23 is fitted with a second rotating shaft 24 in the middle, and the second rotating shaft 24 passes through the fixed base 11 and extends to its outer side. The end of the second rotating shaft 24 is connected to the guide rod 26. By rotating synchronously between the second rotating shaft 24 and the guide rod 26, the guide rod 26 can rotate to drive the movable sleeve 27 to move back and forth in the vertical direction.

[0053] When the motor drives the first bevel gear 21 to rotate, the rotation of the first bevel gear 21 drives the second bevel gear 23 to rotate. The rotation of the second bevel gear 23 synchronously drives the second rotating shaft 24 to rotate. The rotation of the second rotating shaft 24 drives the guide rod 26 to rotate. The guide rod 26 is linked with the movable sleeve 27. The rotation of the guide rod 26 can drive the movable sleeve 27 to reciprocate linearly in the vertical direction. As the movable sleeve 27 moves, the deformation of its extruding elastic element 25 also changes to a certain extent, thereby ensuring that the positive pressure of the grinding head 3 contacting the corrosion pits on the inner wall of the pipe also changes, thus better ensuring the stability of cleaning the inner wall of the pipe.

[0054] Furthermore, the elastic element 25 is preferably a spring, and one end of the elastic element 25 is fixedly connected to the fixed base 11 by bolts, and the other end is fixedly connected to the movable sleeve 27 by bolts. During the vertical movement of the movable sleeve 27, the amount of compression of the elastic element 25 is different. The different compressive forces on the elastic element 25 also result in different deformation of the elastic element 25, which in turn causes the force applied by the elastic element 25 to the grinding head 3 to be different. Thus, the elastic element 25 can buffer the force during the process of the grinding head 3 contacting the corrosion pit, effectively preventing the grinding head 3 from directly impacting the corrosion pit.

[0055] refer to Figures 1-5In some embodiments, a guide rod 26 is included, and the outer wall of the guide rod 26 is provided with a protrusion 261. The guide rod 26 is located inside the movable sleeve 27. The inner wall of the movable sleeve 27 is provided with an arc-shaped groove 272, and the two ends of the arc-shaped groove 272 are connected. The number of arc-shaped grooves 272 is at least one set, and there may be multiple sets.

[0056] When the arc-shaped grooves 272 are in a set, the guide rod 26 rotates once, causing the protrusion 261 to move along the inner wall of the arc-shaped groove 272. The outer wall of the protrusion 261 presses against the inner wall of the arc-shaped groove 272, thereby causing the movable sleeve 27 to move in the vertical direction. Each time the protrusion 261 rotates once, it can drive the movable sleeve 27 to move back and forth along the axial direction for one cycle, and cause the movable sleeve 27 to return to the far-away position.

[0057] When there are multiple sets of arc grooves 272, that is, the protrusion 261 moves inside multiple sets of interconnected arc grooves 272. The rotation of the protrusion 261 drives the movable sleeve 27 to swing up and down multiple times in the vertical direction. Each time the protrusion 261 rotates once, the movable sleeve 27 moves in the vertical direction for multiple cycles, realizing multiple reciprocating movements.

[0058] To further restrict the movement trajectory of the movable sleeve 27, a slider 271 is provided on the outer wall of the movable sleeve 27, and a groove 1121 is provided inside the guide plate 112. The slider 271 is adapted to the groove 1121, and the slider 271 and the groove 1121 are slidably connected. When the protrusion 261 presses against the inner wall of the arc groove 272, the movable sleeve 27 is restricted by the groove 1121, so that the movable sleeve 27 can only move along the long axis of the groove 1121. That is, the guide rod 26 rotates one revolution, which can drive the movable sleeve 27 to reciprocate linearly along the long axis of the groove 1121.

[0059] The cooperation between the slide groove 1121 and the slider 271 further restricts the movement trajectory of the movable sleeve 27, ensuring that the movable sleeve 27 can only move along the long axis of the slide groove 1121; while the cooperation between the protrusion 261 and the arc groove 272 can further drive the arc groove 272 to reciprocate along the vertical direction through the rotation of the protrusion 261, thereby realizing that the rotation of the protrusion 261 drives the movable sleeve 27 to reciprocate along the long axis of the slide groove 1121.

[0060] Furthermore, the rust removal mechanism m is installed above the mobile trolley 6, and the mounting frame of the mobile trolley 6 is fixedly connected to the fixed base 11; the motor 5 mainly drives the first bevel gear 21 to rotate, thereby driving the movable sleeve 27 to reciprocate linearly along the vertical direction; and the bottom of the telescopic rod 4 is installed above the mounting frame of the mobile trolley 6, and the piston end of the telescopic rod 4 can drive the fixed base 11 to move along the axis of the telescopic rod 4, so that the grinding head 3 contacts or moves away from the inner wall of the pipe.

[0061] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

[0062] Importantly, the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rust removal device for a pipeline robot, characterized in that: include, A fixed base (11) is provided, and a guide plate (112) is installed at one end of the fixed base (11); The telescopic unit (2) includes an elastic element (25) disposed on the end face of the guide plate (112), a movable sleeve (27) disposed on the other end of the elastic element (25), and a guide rod (26) disposed on the inner side of the movable sleeve (27); The end of the movable sleeve (27) is connected to a grinding head (3), and the guide rod (26) rotates to drive the grinding head (3) to move back and forth in the vertical direction.

2. The rust removal device for pipeline robots according to claim 1, characterized in that: The fixed base (11) also includes a crossbeam (111) disposed opposite to the guide plate (112); The telescopic unit (2) further includes a first bevel gear (21), a first rotating shaft (22) sleeved in the middle of the first bevel gear (21), a second bevel gear (23) meshing with the first bevel gear (21), and a second rotating shaft (24) sleeved in the middle of the second bevel gear (23); The crossbar (111) supports the first pivot (22) through symmetrical side walls.

3. The rust removal device for pipeline robots according to claim 2, characterized in that: The second rotating shaft (24) passes through the fixed base (11) and extends to its outer side. The second rotating shaft (24) is connected to the fixed base (11) by a bearing. The second rotating shaft (24) is connected to the guide rod (26).

4. The rust removal device for pipeline robots according to claim 3, characterized in that: One end of the elastic element (25) is connected to the end face of the fixed base (11), and the other end is connected to the end face of the movable sleeve (27); The elastic element (25) is located in the center of the guide plate (112); The second pivot (24) passes through the elastic element (25) and extends to the inside of the movable sleeve (27).

5. The rust removal device for pipeline robots according to claim 4, characterized in that: The guide rod (26) includes a protrusion (261) disposed on its side wall; The inner wall of the movable sleeve (27) is provided with an arc-shaped groove (272); The protrusion (261) is adapted to the arcuate groove (272), and the protrusion (261) penetrates the arcuate groove (272) and extends into its interior.

6. The rust removal device for pipeline robots according to claim 5, characterized in that: The guide plate (112) has a groove (1121) on its inner side; The movable sleeve (27) includes a slider (271) disposed on its side wall; The slider (271) is adapted to the slide groove (1121), and the slider (271) and the slide groove (1121) slide together.

7. The rust removal device for pipeline robots according to claim 6, characterized in that: The slider (271) cooperates with the groove (1121) to restrict the slider (271) from moving in the vertical direction; The protrusion (261) cooperates with the arc groove (272) to drive the movable sleeve (27) to move back and forth.

8. The rust removal device for pipeline robots according to claim 7, characterized in that: The reciprocating movement of the movable sleeve (27) along the vertical direction can cause the elastic element (25) to extend and compress.

9. The rust removal device for pipeline robots according to claim 8, characterized in that: It also includes, The mobile trolley (6) has the fixed base (11) mounted on the frame of the mobile trolley (6); Motor (5), the output end of which is connected to the first rotating shaft (22); Telescopic rod (4), the piston section of the telescopic rod (4) is connected to the cross frame (111), and the telescopic rod (4) is connected to the mobile trolley (6) through a fixed frame.

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