Inner wall polishing device for boiler machining

Abstract

The inner wall grinding device for boiler machining comprises a frame body and a grinding assembly, the grinding assembly comprises a fixing plate, an abrasive belt component and an adjusting component, the fixing plate is connected with the frame body and can move relative to the frame body in the height direction of the frame body, and the abrasive belt component comprises an abrasive belt driving part, an abrasive belt and an abrasive belt rubber wheel; the abrasive belt is arranged on the two abrasive belt rubber wheels in a sleeving mode, the abrasive belt driving part is arranged on the fixing plate and connected with one abrasive belt rubber wheel, the adjusting component comprises an adjusting seat and an adjusting part, the first end of the adjusting seat is connected with the fixing plate, the second end of the adjusting seat is connected with the other abrasive belt rubber wheel, the adjusting part is connected with the adjusting seat, and the adjusting seat can move in the height direction of the frame body. The second end of the adjusting piece is driven to move in the direction close to or away from the abrasive belt. The inner wall grinding device for boiler machining is wide in grinding range and has the advantages of being convenient to adjust and high in grinding efficiency.

Description

Technical Field

[0001] This invention relates to the field of boiler processing equipment technology, and more specifically, to an inner wall grinding device for boiler processing. Background Technology

[0002] In industrial production, boilers, as core energy conversion equipment, are widely used in many key industries such as power, chemical, and metallurgy. The smoothness and flatness of their inner walls directly affect the boiler's operating efficiency, service life, and safety. For example, if there are protrusions, burrs, or rust marks on the inner wall, it will not only increase the resistance to medium flow and lead to a decrease in heat exchange efficiency, but may also cause localized wear and accelerated corrosion due to stress concentration during operation, and in severe cases, even lead to safety accidents. Therefore, inner wall grinding is a key process in boiler manufacturing to ensure equipment quality.

[0003] In related technologies, grinding devices mostly use grinding components with fixed structures. The grinding trajectory of the sanding belt or head is relatively fixed and can only be used on the inner wall of the boiler with a specific radius of curvature or diameter. The grinding range is limited and the adaptability is poor. Furthermore, the fixed structure grinding components cannot be flexibly adapted to the inner wall of boilers of different specifications and special parts, and grinding blind spots are easy to occur. At the same time, it is difficult to accurately control the tension of the sanding belt using manual or spring tensioning methods, which can easily lead to the sanding belt slipping or breaking, affecting grinding efficiency and lifespan. Moreover, the positioning of the sanding belt is cumbersome, and the installation and debugging rely on manual experience or multiple bolts for adjustment, which is time-consuming and affects the production rhythm. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention provide an inner wall grinding device for boiler processing, which has the advantages of a wide grinding range, convenient adjustment, and high grinding efficiency.

[0006] The boiler inner wall grinding device according to an embodiment of the present invention includes: Frame; A grinding assembly includes a fixing plate, a sanding belt component, and an adjusting component. The fixing plate is connected to the frame and is movable relative to the frame along its height direction. The sanding belt component includes a sanding belt drive, a sanding belt, and sanding belt rollers. The sanding belt is sleeved on two of the sanding belt rollers. The sanding belt drive is located on the fixed plate and connected to one of the sanding belt rollers. The adjusting component includes an adjusting seat and an adjusting member. The first end of the adjusting seat is connected to the fixed plate, and the second end of the adjusting seat is connected to another sanding belt roller. The adjusting member is connected to the adjusting seat. The adjusting seat is movable along the height direction of the frame to drive the second end of the adjusting member to move toward or away from the sanding belt.

[0007] The boiler inner wall grinding device of this invention allows the fixed plate and the adjusting seat to move along the height of the frame, enabling the grinding device to adapt to boiler inner walls of different specifications and special parts, thus reducing grinding blind spots. The connection between the adjusting seat and the adjusting components allows for quick adjustment of the sanding belt position, simplifying the installation and debugging process, reducing reliance on manual experience, and improving production efficiency.

[0008] In some embodiments, the adjusting component further includes a push rod disposed on a fixed plate, the moving end of the push rod being connected to the adjusting seat, and the push rod being used to drive the adjusting seat to move along the height direction of the frame.

[0009] In some embodiments, the adjusting member includes a lifting and traversing assembly, which includes a side support wheel and a cross plate. The side support wheel is rotatably connected to the cross plate, and the surface of the side support wheel abuts against the inner wall of the sanding belt. The cross plate is connected to the adjusting seat and is movable along the width direction of the adjusting seat.

[0010] In some embodiments, the lifting and traversing assembly further includes a triangular plate and a first sliding shaft. The triangular plate is rotatably connected to the adjusting seat. The horizontal plate is connected to the triangular plate and is movable along the extending direction of the triangular plate. The fixed plate has a track groove on one side adjacent to the adjusting seat. The first end of the first sliding shaft is connected to the triangular plate, and the second end of the first sliding shaft is fitted into the track groove. The track groove includes a vertical sliding groove, a first inclined groove, and a second inclined groove connected in sequence. The first inclined groove is located below the second inclined groove, and the outline of the track groove is generally triangular.

[0011] In some embodiments, the lifting and traversing assembly further includes a telescopic rod, the first end of which is fixedly connected to the fixed plate, and the moving end of which is connected to the side support wheel. The telescopic rod drives the side support wheel to move along the height direction of the frame, and the cross plate drives the side support wheel to move along the width direction of the frame.

[0012] In some embodiments, a rotary telescopic assembly is further included. The rotary telescopic assembly includes a linkage assembly comprising a first linkage and a second linkage. There are two first linkages. A first end of each first linkage is rotatably connected to a first end of each second linkage. The second ends of the first linkages are arranged in a V-shape. A second sliding shaft is provided at the second end of each second linkage and is disposed within the track groove. The fixing plate has a V-shaped groove on the side adjacent to the fixing seat. The second end of the first connecting rod is placed in the V-shaped groove. The first sliding shaft moves along the extension direction of the track groove to drive the second connecting rod to move. The second connecting rod moves and drives the first connecting rod to move toward the sanding belt so as to abut against the inner wall surface of the sanding belt.

[0013] In some embodiments, the rotary telescopic assembly further includes a threaded rod and a threaded sleeve. The threaded sleeve is rotatably connected to the second end of the first connecting rod. The threaded sleeve is fitted onto the threaded rod. The first end of the threaded rod is disposed within the V-groove. A rack is provided on the sidewall of the V-groove. A gear is provided at the first end of the threaded sleeve. The gear meshes with the rack. The threaded rod moves along the extension direction of the V-groove. The threaded rod is rotatable relative to the threaded rod so that the threaded sleeve moves axially along the threaded rod.

[0014] In some embodiments, the rotary telescopic assembly further includes a U-shaped limiting plate disposed within the V-groove and adjacent to the side of the V-groove near the abrasive belt, the U-shaped limiting plate being used to limit the movement distance of the threaded rod.

[0015] In some embodiments, the track groove further includes a return groove located at the connection between the vertical slide groove and the second inclined groove. The depth of the return groove is less than the depth of the track groove, and the second sliding shaft is adapted to the return groove. The second sliding shaft can move towards the direction of the return groove when it moves to the connection between the vertical slide groove and the second inclined groove.

[0016] In some embodiments, the rotary telescopic assembly further includes a one-way plate, which is rotatably disposed at the connection between the vertical slide groove and the second inclined groove and at the connection between the vertical slide groove and the first inclined groove, so as to restrict the movement direction of the first slide shaft. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the boiler processing inner wall grinding device according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the first part of the structure of the inner wall grinding device for boiler processing according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram from another perspective of the first part of the boiler processing inner wall grinding device according to an embodiment of the present invention.

[0020] Figure 4 This is another schematic diagram of the first part of the boiler processing inner wall grinding device according to an embodiment of the present invention.

[0021] Figure 5 This is a first partial schematic diagram of the boiler processing inner wall grinding device according to an embodiment of the present invention.

[0022] Figure 6 yes Figure 5 Enlarged schematic diagram of the middle part of the structure.

[0023] Figure 7 This is a second partial schematic diagram of the boiler processing inner wall grinding device according to an embodiment of the present invention.

[0024] Figure 8 yes Figure 7 An enlarged schematic diagram of the first part of the structure.

[0025] Figure 9 yes Figure 7 An enlarged schematic diagram of the second part of the structure.

[0026] Figure label: 10. Frame; 11. Fixing plate; 12. Motor; 13. Rubber wheels; 14. Sanding belt; 152. Electric actuator; 153. Fixing base; 16. Side support wheels; 18. Lifting and traversing assembly; 181. First sliding shaft; 182. Horizontal plate; 183. Triangular plate; 184. T-shaped slide groove; 185. T-shaped slide rod; 186. Telescopic rod; 19. Track groove; 191. First inclined groove; 192. Second inclined groove; 193. Vertical sliding groove; 20. V-groove; 31. Rotary telescopic assembly; 311. Threaded sleeve; 312. Threaded rod; 313. Gear; 314. Rack; 315. U-shaped limiting plate; 321. First connecting rod; 322. T-shaped plate; 323. Second connecting rod; 324. Second sliding shaft; 325. Return groove; 326. T-shaped limit plate; 327. One-way plate. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] like Figures 1-9As shown, the boiler processing inner wall grinding device of this embodiment includes: a frame 10 and a grinding assembly.

[0029] The grinding assembly includes a fixed plate 11, a sanding belt 14 component, and an adjusting component. The fixed plate 11 is connected to the frame 10 and is movable relative to the frame 10 along the height direction. The sanding belt 14 component includes a sanding belt 14 drive, a sanding belt 14, and sanding belt 14 rollers. The sanding belt 14 is sleeved on two sanding belt 14 rollers. The sanding belt 14 drive is located on the fixed plate 11 and connected to one sanding belt 14 roller. The adjusting component includes an adjusting seat and an adjusting element. The first end of the adjusting seat is connected to the fixed plate 11, and the second end of the adjusting seat is connected to another sanding belt 14 roller. The adjusting element is connected to the adjusting seat. The adjusting seat is movable along the height direction of the frame 10 to drive the second end of the adjusting element to move towards or away from the sanding belt 14.

[0030] Specifically, as shown in the figure, the frame 10, as the supporting structure of the entire device, provides a stable platform for fixing and supporting other components. Optionally, the frame 10 is also equipped with a lifting device, such as a platform that can move linearly back and forth, such as a gear 313 or rack 314 driven by a motor 12. The fixed frame is connected to the lifting device so that the motor 12 can drive the fixed plate 11 to move in the vertical direction, thereby increasing the grinding range.

[0031] A fixing plate 11 is provided at one end of the crossbeam of the frame 10. A motor 12 is fixedly installed on the upper part of the fixing plate 11. Two rubber wheels 13 are provided at the output end of the motor 12. A sanding belt 14 is fitted on the two rubber wheels 13. An adjustment component is provided on the upper part of the lower rubber wheel 13. The adjustment component is used to adjust the tension of the sanding belt 14.

[0032] It is understood that, in this embodiment of the invention, the boiler inner wall grinding device allows the fixed plate 11 to move along the height direction of the frame 10, and the adjusting seat can also move along the height direction of the frame 10. This enables the grinding device to adapt to boiler inner walls of different specifications and special parts, reducing grinding blind spots. Through the connection between the adjusting seat and the adjusting components, the position of the sanding belt 14 can be quickly adjusted, simplifying the installation and debugging process, reducing reliance on manual experience, and improving production efficiency.

[0033] In some embodiments, such as Figures 1-9 As shown, the adjustment component also includes a push rod, which is located on the fixed plate 11. The moving end of the push rod is connected to the adjustment seat, and the push rod is used to drive the adjustment seat to move along the height direction of the frame 10.

[0034] It is understandable that, such as Figures 1-9As shown, the push rod is mounted on the fixed plate 11, with one end fixedly connected to the fixed plate 11 and the other end (moving end) connected to the adjusting seat. One end of the adjusting seat is connected to the fixed plate 11, and the other end is connected to the moving end of the push rod. Simultaneously, the second end of the adjusting seat is connected to another sanding belt 14 rubber wheel. The adjusting component is connected to the adjusting seat and is used to assist in adjusting and fixing the position of the adjusting seat.

[0035] In other words, by controlling the movement of the push rod, the up-and-down movement of the adjusting seat can be precisely controlled, thereby achieving precise adjustment of the sanding belt 14 component. The push rod may also have a power-driven function, such as electric or pneumatic drive, which can reduce the operator's labor intensity and improve adjustment efficiency and accuracy. Because the position and pressure of the sanding belt 14 can be controlled more precisely, this helps to improve grinding quality, reduce surface defects on the boiler inner wall, improve heat exchange efficiency, and extend the service life of the equipment.

[0036] In some embodiments, such as Figures 1-9 As shown, the adjusting component includes a lifting and traversing assembly 18, which includes a side support wheel 16 and a horizontal plate 182. The side support wheel 16 and the horizontal plate 182 are rotatably connected. The surface of the side support wheel 16 abuts against the inner wall of the sanding belt 14. The horizontal plate 182 is connected to the adjusting seat and can move along the width direction of the adjusting seat.

[0037] It is understandable that, such as Figures 1-9 As shown, the addition of the lifting and traversing assembly 18 allows the grinding device to be adjusted not only in the height direction but also in the horizontal direction, improving its adaptability to boiler inner walls with complex shapes and specifications. The surface of the side support wheel 16 abuts against the inner wall surface of the sanding belt 14, which helps ensure uniform contact of the sanding belt 14 during the grinding process and reduces excessive wear or damage caused by excessive local pressure on the sanding belt 14. The horizontal plate 182 is movable in the width direction of the adjusting seat, which helps maintain the stability of the sanding belt 14 components during adjustment and prevents shaking or displacement during the grinding process.

[0038] In some embodiments, the lifting and traversing assembly 18 further includes a triangular plate 183 and a first sliding shaft 181. The triangular plate 183 is rotatably connected to the adjusting seat. The horizontal plate 182 is connected to the triangular plate 183 and is movable along the extending direction of the triangular plate 183. The fixed plate 11 is provided with a track groove 19 on one side adjacent to the adjusting seat. The first end of the first sliding shaft 181 is connected to the triangular plate 183, and the second end of the first sliding shaft 181 is fitted in the track groove 19. The track groove 19 includes a vertical sliding groove 193, a first inclined groove 191, and a second inclined groove 192 connected in sequence. The first inclined groove 191 is located below the second inclined groove 192. The outline of the track groove 19 is generally triangular.

[0039] Understandably, the combination of the triangular plate 183 and the horizontal plate 182, along with the sliding of the first sliding shaft 181 within the track groove 19, enables the grinding device to achieve three-dimensional adjustment, greatly enhancing its adaptability and allowing it to handle more complex and diverse boiler inner wall shapes. The design of the track groove 19 provides stable guidance and precise positioning, ensuring the stability of the horizontal plate 182 during movement, thereby improving grinding accuracy. Because it allows for rapid and precise adjustment, the grinding device can more efficiently adapt to different boiler inner walls, reducing adjustment time and improving production efficiency.

[0040] In some embodiments, the lifting and traversing assembly 18 further includes a telescopic rod 186, the first end of which is fixedly connected to the fixed plate 11, and the moving end of which is connected to the side support wheel 16. The telescopic rod 186 drives the side support wheel 16 to move along the height direction of the frame 10, and the cross plate 182 drives the side support wheel 16 to move along the width direction of the frame 10.

[0041] Understandably, the telescopic movement of the telescopic rod 186 drives the side support wheel 16 to move along the height direction of the frame 10. This allows the position of the sanding belt 14 to be adjusted according to the different height requirements of the boiler's inner wall, ensuring uniform grinding. The horizontal plate 182 drives the side support wheel 16 to move along the width direction of the frame 10, enabling the sanding belt 14 to cover a wider area of ​​the boiler's inner wall or precisely align with specific areas of the inner wall. The combined use of the telescopic rod 186 and the horizontal plate 182 provides a greater adjustment range and flexibility, allowing the grinding device to adapt to boiler inner walls of different sizes and shapes.

[0042] Optionally, the telescopic boom 186 can be driven by electricity or pneumatics. In conjunction with an automated control system, it can achieve precise and rapid adjustment, thereby improving production efficiency.

[0043] In some embodiments, such as Figures 1-9 As shown, the boiler processing inner wall grinding device of this embodiment further includes a rotary telescopic assembly 31. The rotary telescopic assembly 31 includes a connecting rod assembly, which includes a first connecting rod 321 and a second connecting rod 323. There are two first connecting rods 321. The first end of the first connecting rod 321 is rotatably connected to the first end of the second connecting rod 323. The second end of the first connecting rod 321 is arranged in a V-shape. The second end of the second connecting rod 323 is provided with a second sliding shaft 324. The second sliding shaft 324 is provided with a V-shaped groove 20 on the side of the fixing plate 11 adjacent to the fixing seat 153. The second end of the first connecting rod 321 is placed in the V-shaped groove 20. The first sliding shaft 181 moves along the extension direction of the track groove 19 to drive the second connecting rod 323 to move. The second connecting rod 323 moves and drives the first connecting rod 321 to move toward the sanding belt 14 so as to abut against the inner wall surface of the sanding belt 14.

[0044] Understandably, the V-shaped arrangement and rotatable connection of the first connecting rod 321, allowing relative rotation between the first connecting rod 321 and the second connecting rod 323, increases the flexibility of adjustment and allows for better adaptation to inner walls of different shapes. The movement of the first sliding shaft 181 drives the second connecting rod 323 and the first connecting rod 321 to move towards the sanding belt 14, realizing the telescopic adjustment of the sanding belt 14 components, enabling the grinding device to cover a larger area of ​​the boiler inner wall.

[0045] The design of the rotary telescopic assembly 31 allows for precise control of the position of the sanding belt 14 components, which helps improve grinding quality and reduce defects on the inner wall. Through rotation and telescopic adjustment, the grinding device can adapt to different boiler inner walls more quickly, reducing adjustment time and improving production efficiency.

[0046] In some embodiments, such as Figures 1-9 As shown, the rotary telescopic assembly 31 also includes a threaded rod 312 and a threaded sleeve. The threaded sleeve is rotatably connected to the second end of the first connecting rod 321. The threaded sleeve is fitted onto the threaded rod 312. The first end of the threaded rod 312 is located in the V-groove 20. The side wall of the V-groove 20 is provided with a rack 314. The first end of the threaded sleeve is provided with a gear 313. The gear 313 meshes with the rack 314. The threaded rod 312 moves along the extension direction of the V-groove 20. The threaded rod 312 is rotatable relative to the threaded joint, so that the threaded sleeve moves along the axial direction of the threaded rod 312.

[0047] Understandably, the design of the threaded rod 312 and the threaded sleeve allows for micron-level precision adjustment, facilitating highly refined grinding control and ensuring high-quality grinding of the boiler's inner wall. The threaded rod 312 moves along the extension direction of the V-groove 20, while the threaded sleeve moves axially along the threaded rod 312; this design provides a wider adjustment range and greater flexibility. The threaded rod 312 is rotatable relative to the threaded sleeve, increasing the degree of freedom in adjustment and allowing the grinding device to better adapt to inner walls of different shapes. The meshing of the gear 313 and rack 314 provides stable power transmission, reducing loosening or slippage during rotation or movement and improving grinding stability.

[0048] In some embodiments, the rotary telescopic assembly 31 further includes a U-shaped limiting plate 315, which is disposed in the V-groove 20 and adjacent to the side of the V-groove 20 near the sanding belt 14. The U-shaped limiting plate 315 is used to limit the movement distance of the threaded rod 312.

[0049] Understandably, the function of the U-shaped limiting plate 315 is to restrict the movement distance of the threaded rod 312, ensuring that the threaded rod 312 moves within a predetermined range and preventing equipment damage or excessive wear of the sanding belt 14 due to excessive movement. By limiting the movement of the threaded rod 312, the U-shaped limiting plate 315 increases the safety of the grinding device and reduces the risk caused by operational errors or mechanical failures. The U-shaped limiting plate 315 can prevent the threaded rod 312 from colliding with the V-groove 20 or other components, protecting the threaded rod 312, threaded sleeve, and other related components, and extending the service life of the equipment.

[0050] In some embodiments, such as Figures 1-9 As shown, the track groove 19 also includes a return groove 325, which is located at the connection between the vertical slide groove 193 and the second inclined groove 192. The depth of the return groove 325 is less than the depth of the track groove 19, and the second sliding shaft 324 is adapted to the return groove 325. When the second sliding shaft 324 moves to the connection between the vertical slide groove 193 and the second inclined groove 192, it can move in the direction of the return groove 325.

[0051] Understandably, the design of the return groove 325 can prevent the second sliding shaft 324 from exceeding the predetermined range during movement, thus playing a safety protection role and preventing equipment damage and operational risks.

[0052] In other words, when the first sliding shaft 181 drives the second sliding shaft 324 to move, since the second sliding shaft 324 is adapted to the depth of the return groove 325, the first sliding shaft 181 moves directly toward the vertical sliding groove 193 at the connection between the vertical sliding groove 193 and the second inclined groove 192, while the second sliding shaft 324 moves toward the return groove 325 to facilitate subsequent operations.

[0053] In some embodiments, such as Figures 1-9 As shown, the rotary telescopic assembly 31 also includes a one-way plate 327, which is rotatably disposed at the connection between the vertical slide groove 193 and the second inclined groove 192 and the connection between the vertical slide groove 193 and the first inclined groove 191, so as to restrict the movement direction of the first sliding shaft 181.

[0054] Understandably, the function of the one-way plate 327 is to restrict the movement direction of the first sliding shaft 181, preventing it from turning incorrectly during movement, thereby ensuring the accuracy and consistency of the grinding process. The design of the one-way plate 327 prevents the first sliding shaft 181 from making unexpected or erroneous movements during movement, improving the safety of the grinding device. Through the restrictive function of the one-way plate 327, the movement of the first sliding shaft 181 can be more precisely controlled, contributing to improved accuracy and consistency in grinding.

[0055] like Figures 1-9As shown, during use, the motor 12 drives the sanding belt 14 to rotate at high speed to achieve the grinding operation. The adjustment component can adjust the tension of the sanding belt 14 in real time according to the wear condition of the sanding belt 14, ensuring that the sanding belt 14 always maintains a suitable tension and avoiding a decrease in grinding effect due to the loosening of the sanding belt 14. The side support wheel 16 provides lateral support for the sanding belt 14, and together with the lifting and traversing component 18, changes the contact angle and position between the sanding belt 14 and the inner wall of the boiler, thereby effectively increasing the grinding coverage of the arc surface and improving grinding efficiency. Furthermore, the adjustment component includes an L-shaped fixing plate 11 fixedly mounted on the upper surface of the fixing plate 11. An electric push rod 152 is provided in the middle of the L-shaped fixing plate 11, and a fixing seat 153 (i.e., a U-shaped seat) is fixedly mounted on the telescopic end of the electric push rod 152. The fixing seat 153 is rotatably connected to the rubber wheel 13.

[0056] The device employs an electric actuator 152 as the driving element, which drives the rubber wheel 13 to move up and down via the fixed base 153, thereby achieving precise adjustment of the tension of the sanding belt 14. The L-shaped fixed plate 11 provides a stable mounting base for the entire adjustment component, ensuring the stability and reliability of the adjustment process. At the same time, the driving method of the electric actuator 152 facilitates automated control and can be flexibly adjusted according to actual grinding needs.

[0057] The lifting and traversing assembly 18 includes a first sliding shaft 181 slidably disposed in the inner cavity of the first inclined groove 191. A horizontal plate 182 is fixedly disposed at the other end of the first sliding shaft 181. The horizontal plate 182 is slidably disposed with the fixed plate 11. The other end of the horizontal plate 182 is rotatably disposed with the side support wheel 16. A triangular plate 183 is slidably disposed at the lower end of the horizontal plate 182. The triangular plate 183 is fixedly connected to the middle of one side surface of the fixed seat 153. A T-shaped groove 184 is formed on the upper surface of the triangular plate 183. A T-shaped slide rod 185 is slidably disposed in the inner cavity of the T-shaped groove 184. The T-shaped slide rod 185 is fixedly connected to the lower surface of the horizontal plate 182. The lifting and traversing assembly 18 also includes a telescopic rod 186 whose telescopic end is rotatably connected to the side support wheel 16. The retracted end of the telescopic rod 186 is connected to the fixed plate through a rotating shaft and is located on the front side of the fixed plate.

[0058] It should be noted that when the triangular plate 183 moves synchronously with the fixed base 153 (moving in the vertical direction), the triangular plate 183 and the first inclined groove 191 limit and guide each other, and with the cooperation of the T-shaped slide groove 184 and the T-shaped slide rod 185, the horizontal plate 182 is driven to move laterally, so that the side support wheel 16 can achieve a compound motion of lifting and moving laterally. The telescopic rod 186 provides auxiliary support to the side support wheel 16, ensuring its stability during movement. The inner cavity of the first inclined groove 191 is interconnected with the inner cavities of the second inclined groove 192 and the vertical sliding groove 193, forming a loop. This allows the lifting and traversing assembly 18 to push the side support wheel 16 to slide within the first inclined groove 191, thereby expanding the sanding belt 14 and increasing the contact area with the workpiece. In particular, when grinding the curved surface of the furnace cover, it can grind both the arc surface and the vertical surface. As the lifting and traversing assembly 18 slides along the second inclined groove 192, it will drive the side support wheel 16 to move in the opposite direction, thereby eliminating the tension between the sanding belt 14 and the rubber wheel 13, thus enabling the replacement of the sanding belt 14. When in use, firstly, when it is necessary to grind the inner wall of the boiler, start the motor 12. The output end of the motor 12 drives one of the rubber wheels 13 to rotate. Since the sanding belt 14 is mounted on the two rubber wheels 13, the two rubber wheels 13 rotate synchronously at high speed through the sanding belt 14. At this time, the high-speed rotating sanding belt 14 can be used to grind the inner wall of the boiler.

[0059] Before grinding, the adjustment component adjusts the tension of the sanding belt 14 according to its length. Specifically, the electric push rod 152 on the L-shaped fixing plate 11 works, and its telescopic end drives the rubber wheel 13 connected to it to move up and down through the fixing seat 153, thereby achieving precise adjustment of the tension of the sanding belt 14, ensuring that the sanding belt 14 always maintains a suitable tension and ensuring the grinding effect.

[0060] During the grinding process, the adjustment of the components drives the lifting and lateral movement assembly 18, which in turn drives the side support wheel 16 to unfold the abrasive belt 14 towards the workpiece grinding surface, changing the contact angle and position between the abrasive belt 14 and the inner wall of the boiler to increase the grinding coverage area. When the triangular plate 183 moves synchronously with the fixed seat 153, the triangular plate 183 will push the horizontal plate 182 to move synchronously. Under the mutual limiting and guiding effect of the first sliding shaft 181 and the first inclined groove 191, and the cooperation of the T-shaped sliding groove 184 and the T-shaped sliding rod 185, the horizontal plate 182 will slide in the first inclined groove 191. The other end of the horizontal plate 182 is rotatably connected to the side support wheel 16, which enables the side support wheel 16 to achieve a combined lifting and lateral movement. During this process, the telescopic rod 186 provides auxiliary support for the side support wheel 16 to ensure its stability during movement. The movement of the side support wheel 16 can unfold the sanding belt 14, increasing the contact area between the sanding belt 14 and the workpiece. Especially when grinding the curved surface of the furnace cover, it can grind both the arc surface and the vertical surface, effectively improving grinding efficiency.

[0061] In addition, the second inclined groove 192 and the vertical sliding groove 193 in the guiding mechanism are connected to the inner cavity of the first inclined groove 191 to form a loop, and the one-way plate 327 at the connection between the vertical sliding groove 193 and the first inclined groove 191 plays a guiding and limiting role. When it is necessary to replace the sanding belt 14, the lifting and traversing assembly 18 slides along the second inclined groove 192, driving the side support wheel 16 to move in the opposite direction, thereby eliminating the tension between the sanding belt 14 and the rubber wheel 13, making it easier to replace the sanding belt 14.

[0062] The rotary telescopic assembly 31 includes a threaded sleeve 311 slidably disposed in the inner cavity of the V-groove 20. A threaded rod 312 is threadedly connected to the inner cavity of the threaded sleeve 311. A positioning plate is provided at the telescopic end of the threaded rod 312. A gear 313 is fixedly disposed on the outside of the threaded sleeve 311. The gear 313 is slidably disposed on the surface of the fixing plate 11. A rack 314 is meshed on one side of the gear 313. The rack 314 is fixedly disposed on the fixing plate 11. The rotary telescopic assembly 31 also includes a U-shaped limiting plate 315 slidably disposed on the upper part of the inner cavity of the V-groove 20. The U-shaped limiting plate 315 is inserted into and limited by the threaded sleeve 311.

[0063] Specifically, the position adjustment is achieved by sliding the threaded sleeve 311 in the V-groove 20. When the threaded sleeve 311 moves, the gear 313 meshes with the rack 314, driving the threaded sleeve 311 to rotate. This causes the threaded rod 312 to extend and retract axially, thereby pushing the positioning plate to precisely abut against the U-shaped limiting plate 315 on the side of the sanding belt 14 to form a radial limit on the threaded sleeve 311, preventing it from shifting during rotation and movement. This ensures the contact stability between the positioning plate and the sanding belt 14, solving the problems of easy shifting and insufficient positioning accuracy of the sanding belt 14 during installation. In conjunction with the adjustment components of the grinding mechanism, the rapid positioning and tensioning of the sanding belt 14 can be achieved.

[0064] Furthermore, the rotary telescopic assembly 31 also includes two first connecting rods 321 rotatably disposed outside the threaded sleeve 311, and a T-shaped plate 322 is rotatably disposed at the lower end of each of the two first connecting rods 321. The T-shaped plate 322 is slidably connected to the fixed plate 11, and a second connecting rod 323 is rotatably disposed at the lower end of the T-shaped plate 322. A second sliding shaft 324 is fixedly disposed at the lower end of the second connecting rod 323. The second sliding shaft 324 is slidably disposed in the inner cavity of the second inclined groove 192. The push-pull assembly also includes a return groove 325 opened at the communication between the second inclined groove 192 and the vertical sliding groove 193, and a T-shaped limiting plate 326 is rotatably disposed in the middle of the return groove 325.

[0065] When the first sliding shaft 181 moves within the second inclined groove 192, it abuts against the second sliding shaft 324, thereby pushing the second connecting rod 323 upward. This causes the T-shaped plate 322 and the two first connecting rods 321 to move synchronously. Through the mutual rotational connection between the first connecting rod 321 and the threaded sleeve 311, when the first connecting rod 321 moves, it pushes the threaded sleeve 311 to slide within the V-groove 20 and move towards the sanding belts 14 on both sides. When the second sliding shaft 324 moves to the lower end of the return groove 325, it abuts against the T-shaped limiting plate 326, pushing the T-shaped limiting plate 326 to flip, thus separating the second sliding shaft 324 from the first sliding shaft 181. As the second sliding shaft 181 moves... The continuous movement of the shaft pushes the T-shaped limiting plate 326 to flip. The flipping of the T-shaped limiting plate 326 will push the first sliding shaft to move upward and then get stuck in the inner cavity of the return groove 325. As the first sliding shaft 181 falls back through the vertical sliding groove 193, it returns to the initial position through the second inclined groove 192 under the action of the T-shaped limiting plate 326. It should be noted that the depth of the return groove 325 is less than the depth of the second inclined groove 192, and the length of the second sliding shaft 324 is less than the length of the first sliding shaft 181. The length of the second sliding shaft 324 is consistent with the depth of the return groove, which can prevent the first sliding shaft 181 from accidentally sliding into the return groove 325 and causing the side support wheel 16 to reset incorrectly.

[0066] When the sanding belt 14 needs to be installed, the positioning mechanism initiates the coordinated operation. First, with the initial adjustment of the electric actuator 152 in the adjusting component, the fixed seat 153 drives the rubber wheel 13 to move, which in turn indirectly pushes the first sliding shaft 181 in the lifting and traversing assembly 18 to slide within the first inclined groove 191. When the first sliding shaft 181 moves to the position communicating with the second inclined groove 192, it will abut against the second sliding shaft 324 in the push-pull assembly. As the first sliding shaft 181 continues to move within the cavity of the second inclined groove 192, it will push the second sliding shaft 324 to move synchronously, thereby causing the second connecting rod 323, which is fixedly connected to the second sliding shaft 324, to rotate upward. The rotation of the second link 323 will push the T-shaped plate 322, which is rotatably connected to it, to slide on the fixed plate 11. The T-shaped plate 322 is rotatably connected to the threaded sleeve 311 in the rotary telescopic assembly 31 through two first links 321. Therefore, the sliding of the T-shaped plate 322 will drive the first link to move synchronously, and finally push the threaded sleeve 311 to slide in the inner cavity of the V-groove 20 towards the sanding belt 14.

[0067] During the sliding process of the threaded sleeve 311, the gear 313 fixed externally engages with the rack 314 fixed on the fixed plate 11. The rotation of the gear 313 causes the threaded sleeve 311 to rotate. Since the inner cavity of the threaded sleeve 311 is threadedly connected to the threaded rod 312, the rotation of the threaded sleeve 311 causes the threaded rod 312 to extend axially, thereby pushing the positioning plate at the telescopic end of the threaded rod 312 to accurately abut against the side of the sanding belt 14, thus achieving the positioning of the sanding belt 14. At the same time, the U-shaped limiting plate 315 in the rotating telescopic assembly 31 is slidably set in the upper part of the inner cavity of the V-groove 20 and is inserted into and limited by the threaded sleeve 311. It can limit the radial movement of the threaded sleeve 311, prevent the threaded sleeve 311 from deviating during sliding and rotation, and ensure that the positioning plate always stably abuts against the sanding belt 14, thus ensuring positioning accuracy.

[0068] When the sanding belt 14 needs to be replaced after grinding, the lifting and traversing assembly 18 drives the first sliding shaft 181 to move back along the second inclined groove 192. When the first sliding shaft 181 moves to the vicinity of the return groove 325 where the second inclined groove 192 connects with the vertical sliding groove 193, the second sliding shaft 324 will enter the inner cavity of the return groove 325 along with the movement of the first sliding shaft 181, and abut against the T-shaped limiting plate 326 rotatably set in the middle of the return groove 325. As the first sliding shaft 181 continues to move, it will push the T-shaped limiting plate 326 to flip. The flipping of the T-shaped limiting plate 326 will, on the one hand, separate the second sliding shaft 324 from the first sliding shaft 181, and on the other hand, push the second sliding shaft 324 to move upward in the return groove 325 and lock into a specific position in the return groove 325.

[0069] Subsequently, when the first sliding shaft 181 falls back to its initial position through the vertical sliding groove 193, under the limiting action of the T-shaped limiting plate 326, the second sliding shaft 324 will slowly return to its initial position along the return groove 325 and the second inclined groove 192. At the same time, through the linkage of the second connecting rod 323, the T-shaped plate 322 and the first connecting rod 321, the threaded sleeve 311 will slide in the reverse direction in the V-shaped groove 20, the threaded rod 312 will retract, the positioning plate will separate from the sanding belt 14, and the positioning of the sanding belt 14 will be released, making it convenient for workers to replace the sanding belt 14. Throughout the process, the positioning mechanism, the grinding mechanism and the guiding mechanism work together to solve the problem of frequent positioning adjustments during the installation of the sanding belt 14, and realize the automated linkage of the positioning and replacement of the sanding belt 14, improving the ease of use and work efficiency of the device.

[0070] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0071] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0072] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0073] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0074] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0075] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An inner wall grinding device for boiler processing, characterized in that, include: Frame; A grinding assembly includes a fixed plate, a sanding belt component, and an adjusting component. The fixed plate is connected to the frame and is movable relative to the frame along its height direction. The sanding belt component includes a sanding belt drive, a sanding belt, and sanding belt rollers. The sanding belt is sleeved on two of the sanding belt rollers. The sanding belt drive is located on the fixed plate and connected to one of the sanding belt rollers. The adjusting component includes an adjusting seat and an adjusting member. The first end of the adjusting seat is connected to the fixed plate, and the second end of the adjusting seat is connected to another sanding belt roller. The adjusting member is connected to the adjusting seat. The adjusting seat is movable along the height direction of the frame to drive the second end of the adjusting member to move toward or away from the sanding belt.

2. The boiler processing inner wall grinding device according to claim 1, characterized in that, The adjustment component also includes a push rod, which is mounted on a fixed plate. The moving end of the push rod is connected to the adjustment seat, and the push rod is used to drive the adjustment seat to move along the height direction of the frame.

3. The boiler processing inner wall grinding device according to claim 2, characterized in that, The adjusting component includes a lifting and traversing assembly, which includes a side support wheel and a horizontal plate. The side support wheel is rotatably connected to the horizontal plate, and the surface of the side support wheel abuts against the inner wall of the sanding belt. The horizontal plate is connected to the adjusting seat and is movable along the width direction of the adjusting seat.

4. The boiler processing inner wall grinding device according to claim 3, characterized in that, The lifting and traversing assembly also includes a triangular plate and a first sliding shaft. The triangular plate is rotatably connected to the adjusting seat. The horizontal plate is connected to the triangular plate and is movable along the extension direction of the triangular plate. The fixed plate has a track groove on one side adjacent to the adjusting seat. The first end of the first sliding shaft is connected to the triangular plate, and the second end of the first sliding shaft is fitted into the track groove. The track groove includes a vertical sliding groove, a first inclined groove, and a second inclined groove connected in sequence. The first inclined groove is located below the second inclined groove, and the outline of the track groove is generally triangular.

5. The boiler processing inner wall grinding device according to claim 4, characterized in that, The lifting and traversing assembly also includes a telescopic rod, the first end of which is fixedly connected to the fixed plate, and the moving end of which is connected to the side support wheel. The telescopic rod drives the side support wheel to move along the height direction of the frame, and the horizontal plate drives the side support wheel to move along the width direction of the frame.

6. The boiler processing inner wall grinding device according to claim 5, characterized in that, It also includes a rotary telescopic assembly, which comprises a linkage assembly. The linkage assembly includes a first linkage and a second linkage. There are two first linkages, with a first end rotatably connected to the first end of the second linkage. The second end of the first linkage is arranged in a V-shape, and the second end of the second linkage is provided with a second sliding shaft, which is disposed in the track groove. The fixing plate has a V-shaped groove on the side adjacent to the fixing seat. The second end of the first connecting rod is placed in the V-shaped groove. The first sliding shaft moves along the extension direction of the track groove to drive the second connecting rod to move. The second connecting rod moves and drives the first connecting rod to move toward the sanding belt so as to abut against the inner wall surface of the sanding belt.

7. The boiler inner wall grinding device according to claim 6, characterized in that, The rotary telescopic assembly further includes a threaded rod and a threaded sleeve. The threaded sleeve is rotatably connected to the second end of the first connecting rod. The threaded sleeve is fitted onto the threaded rod. The first end of the threaded rod is located in the V-groove. A rack is provided on the sidewall of the V-groove. A gear is provided at the first end of the threaded sleeve. The gear meshes with the rack. The threaded rod moves along the extension direction of the V-groove. The threaded rod is rotatable relative to the threaded rod so that the threaded sleeve moves axially along the threaded rod.

8. The boiler processing inner wall grinding device according to claim 7, characterized in that, The rotary telescopic assembly also includes a U-shaped limiting plate, which is disposed in the V-groove and adjacent to the side of the V-groove near the sanding belt. The U-shaped limiting plate is used to limit the movement distance of the threaded rod.

9. The boiler processing inner wall grinding device according to claim 8, characterized in that, The track groove also includes a return groove, which is located at the connection between the vertical sliding groove and the second inclined groove. The depth of the return groove is less than the depth of the track groove, and the second sliding shaft is adapted to the return groove. When the second sliding shaft moves to the connection between the vertical sliding groove and the second inclined groove, it can move in the direction of the return groove.

10. The boiler processing inner wall grinding device according to claim 9, characterized in that, The rotary telescopic assembly also includes a one-way plate, which is rotatably disposed at the connection between the vertical slide groove and the second inclined groove and at the connection between the vertical slide groove and the first inclined groove, so as to restrict the movement direction of the first sliding shaft.

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