A thermal equipment anti-corrosion coating repair tool and use method thereof

Abstract

The present invention relates to the technical field of boiler polishing, and discloses a thermal equipment anti-corrosion coating repair tool and a method of using the same, comprising a base plate, and also comprising: a turntable, which is rotatably arranged above the base plate; an L-shaped frame, which is arranged above the base plate; and a polishing assembly, which is used to polish the damaged part of the thermal equipment coating. The present invention can perform polishing when repairing the surface coating of the thermal equipment, and due to the centrifugal force during polishing, the grinding disc automatically makes soft contact with the surface of the thermal equipment, thereby avoiding the situation where the grinding disc and the surface of the thermal equipment are in hard contact and causing poor polishing effect. The soft contact between the grinding disc and the thermal equipment can effectively reduce the direct hard collision between the grinding disc and the thermal equipment, and avoid scratches, cracks or other deformations on the surface of the thermal equipment caused by excessive contact force. The soft contact can protect the surface of the thermal equipment, ensure its surface smoothness and integrity, and thus improve the use effect of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of boiler polishing, and in particular to a thermal equipment anti-corrosion coating repair tool and a use method thereof. Background Art

[0002] Thermal equipment, referred to as boilers, mainly converts the chemical energy of fuel into thermal energy, and uses the thermal energy to heat the water in the boiler to make it superheated steam of sufficient quantity and quality. When the boiler is used for too long, the anti-corrosion coating on its surface will be damaged. Therefore, the surface coating of the boiler needs to be repaired, and during the repair, the coating needs to be polished and then sprayed.

[0003] Current thermal equipment anti-corrosion coating repair tools, when grinding the surface coating of thermal equipment, all make the grinding disc and the surface of the thermal equipment come into hard contact. Hard contact often causes a greater contact force to act on the surface of the thermal equipment, increasing the risk of damage such as scratches, indentations, and cracks on the surface of the thermal equipment, and reducing the effect of use. Therefore, there is an urgent need to design a thermal equipment anti-corrosion coating repair tool. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a thermal equipment anti-corrosion coating repair tool and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A thermal equipment anti-corrosion coating repair tool, comprising a base plate, and further comprising:

[0007] A turntable is rotatably arranged above the bottom plate;

[0008] A rotating assembly is arranged on the top of the bottom plate and is used to rotate the turntable;

[0009] L-shaped frame, the L-shaped frame is arranged above the bottom plate;

[0010] A mobile support assembly is arranged on the top of the base plate, and is used to move and support the L-shaped frame;

[0011] A grinding assembly is arranged on an L-shaped frame and is used for grinding damaged parts of the coating of thermal equipment.

[0012] As a further technical solution of the present invention, the grinding assembly includes: a first telescopic rod, the first telescopic rod is horizontally rotatably installed on the inner side of the vertical side of the L-shaped frame, the fixed end and the telescopic end of the first telescopic rod are connected by a spline, a first motor is installed on the outer side of the vertical side of the L-shaped frame, the output shaft of the first motor is installed on the end face of the fixed end of the first telescopic rod, and a grinding disc is fixedly installed on the telescopic end of the first telescopic rod.

[0013] As a further technical solution of the present invention, a skateboard is rotatably sleeved on the surface of the first telescopic rod, a second disc is rotatably installed on the side of the skateboard, a mounting plate is vertically fixed on the top of the horizontal side of the L-shaped frame, and the first disc is rotatably installed on the side of the mounting plate close to the second disc.

[0014] As a further technical solution of the present invention, a rotating rod is horizontally fixedly installed at the center of the side of the first disc, the end of the rotating rod away from the first disc passes through the second disc and the slide, and the surface of the rotating rod is slidably arranged on the inner wall of the second disc and the slide.

[0015] As a further technical solution of the present invention, a spring is sleeved on the surface of the rotating rod, and both ends of the spring are rotatably installed on the opposite surfaces of the first disk and the second disk respectively. A plurality of first movable rods evenly distributed in a ring shape are rotatably installed on the side of the first disk, and a counterweight block is rotatably installed on the other end of each first movable rod, and a second movable rod is also rotatably installed on the corresponding side of each counterweight block, and the other end of each second movable rod is rotatably installed on the side of the second disk.

[0016] As a further technical solution of the present invention, the fixed end of the first telescopic rod is fixedly sleeved with a second pulley, the rotating rod is fixedly sleeved with a first pulley, and belts are sleeved on the surfaces of the first pulley and the second pulley.

[0017] As a further technical solution of the present invention, the rotating assembly includes: a U-shaped frame, the U-shaped frame is fixedly installed on the top of the base plate, a rotating shaft is rotatably installed on the top of the horizontal side of the U-shaped frame, the rotating shaft is fixedly installed at the bottom center of the turntable, a clamp is installed on the top of the turntable, a second motor is installed on the top of the base plate, and the output shaft of the second motor is installed at the bottom center of the rotating shaft.

[0018] As a further technical solution of the present invention, the mobile support assembly includes: a fixed plate, the fixed plate is fixedly installed on the top of the base plate, a slide groove is horizontally opened on the top of the fixed plate, and a slider is slidably installed inside the slide groove.

[0019] As a further technical solution of the present invention, two symmetrically arranged first electric telescopic rods are vertically fixed on the top of the slider, the output ends of the two first electric telescopic rods are fixedly installed at the bottom of the horizontal side of the L-shaped frame, and a second electric telescopic rod is installed at the end of the fixed plate, and the output end of the second electric telescopic rod is fixedly installed at the end of the slider.

[0020] A method for using a thermal equipment anti-corrosion coating repair tool comprises the following steps:

[0021] S1: First, place the thermal equipment on the turntable and clamp it with the clamp, then use the second electric telescopic rod to drive the slider to move, the movement of the slider drives the two first electric telescopic rods to move, the movement of the two first electric telescopic rods drives the L-shaped frame to move, and the movement of the L-shaped frame drives the grinding disc to move, so that it can be used for thermal equipment with different diameters;

[0022] S2: Then, the two first electric telescopic rods drive the L-shaped frame to rise and fall, and the L-shaped frame rises and falls to drive the grinding disc and its connecting parts to rise and fall. In addition, the second motor drives the rotating shaft to rotate, and the rotating shaft drives the rotating disc to rotate. The rotating disc drives the fixed thermal equipment to rotate, so that the damaged part of the thermal equipment coating and the grinding disc can be located;

[0023] S3: Then start the first motor to drive the first telescopic rod to rotate, the rotation of the first telescopic rod drives the second pulley and the grinding disc to rotate, the rotation of the second pulley drives the belt to rotate, the rotation of the belt drives the small pulley to rotate, the rotation of the small pulley drives the rotating rod to rotate, the rotation of the rotating rod drives the first disc to rotate, the rotation of the first disc drives the multiple first movable rods to revolve around the center of the first disc, the rotation of the first movable rod drives the counterweight block to rotate, the rotation of the counterweight block drives the second movable rod to rotate, the rotation of the multiple second movable rods drives the second disc to rotate, due to the action of centrifugal force, the counterweight block rotates around the first disc The centrifugal force generated when the disk rotates with the center of the circle as the center will cause the counterweight block to move, and the movement of the counterweight block drives the second movable rod to move, and the movement of the second movable rod drives the second disk to move and causes the spring to generate elastic force, and the movement of the second disk drives the slide plate to move, and the movement of the slide plate drives the telescopic end of the first telescopic rod to move, and the movement of the telescopic end of the first telescopic rod drives the grinding disk to move, thereby realizing soft contact between the grinding disk and the damaged coating of the thermal equipment, and can follow the grinding process of the grinding disk, so that the grinding disk gradually contacts the damaged coating of the thermal equipment, thereby ensuring the effect of grinding the coating of the thermal equipment when the grinding disk rotates.

[0024] The beneficial effects of the present invention are:

[0025] Firstly, the present invention can perform grinding when repairing the surface coating of thermal equipment through the arrangement of the grinding component, the movable support component and the rotating component, and during grinding, the grinding disc automatically makes soft contact with the surface of the thermal equipment due to the centrifugal force, thereby avoiding the poor grinding effect caused by the hard contact between the grinding disc and the surface of the thermal equipment. The soft contact between the grinding disc and the thermal equipment can effectively reduce the direct hard collision between the grinding disc and the thermal equipment, and avoid scratches, cracks or other deformations on the surface of the thermal equipment caused by excessive contact force. The soft contact can protect the surface of the thermal equipment, ensure its surface smoothness and integrity, and thus improve the use effect of the equipment.

[0026] Secondly, the present invention, through the arrangement of the grinding assembly, the movable support assembly and the rotating assembly, can adjust the position of the L-shaped frame according to the diameter of the thermal equipment, so that the grinding wheel can grind the damaged coating of thermal equipment of different diameters, thereby improving the application scope of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a thermal equipment anti-corrosion coating repair tool proposed by the present invention;

[0028] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0029] Figure 3 This is a schematic diagram of the structure of a thermal equipment anti-corrosion coating repair tool proposed by the present invention after the thermal equipment is removed;

[0030] Figure 4 This is a schematic diagram of the structure of a turntable of a thermal equipment anti-corrosion coating repair tool proposed by the present invention when viewed from above;

[0031] Figure 5 This is a schematic diagram of the L-shaped frame and fixing plate structure of a thermal equipment anti-corrosion coating repair tool proposed by the present invention;

[0032] Figure 6 A schematic diagram of an L-shaped frame and its connection structure of a thermal equipment anti-corrosion coating repair tool proposed by the present invention;

[0033] Figure 7 This is a schematic structural diagram of the first disc and the second disc of a thermal equipment anti-corrosion coating repair tool proposed by the present invention.

[0034] In the figure: 1, bottom plate; 2, turntable; 3, fixed plate; 4, grinding disc; 5, clamp; 6, L-shaped frame; 7, first motor; 8, first telescopic rod; 9, slide plate; 10, rotating rod; 11, belt; 12, first pulley; 13, second pulley; 14, U-shaped frame; 15, second motor; 16, rotating shaft; 17, first electric telescopic rod; 18, slide groove; 19, slider; 20, second electric telescopic rod; 21, first disc; 22, second disc; 23, mounting plate; 24, counterweight; 25, first movable rod; 26, second movable rod; 27, spring. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Please see attached Figure 1 -Attached Figure 7 , a thermal equipment anti-corrosion coating repair tool, including a base plate 1, and also includes: a turntable 2, a rotating assembly, an L-shaped frame 6, a mobile support assembly and a grinding assembly, the turntable 2 is rotatably arranged above the base plate 1, the rotating assembly is arranged on the top of the base plate 1, the rotating assembly is used to rotate the turntable 2, the L-shaped frame 6 is arranged above the base plate 1, the mobile support assembly is arranged on the top of the base plate 1, the mobile support assembly is used to move and support the L-shaped frame 6, the grinding assembly is arranged on the L-shaped frame 6, and the grinding assembly is used to grind the damaged part of the thermal equipment coating;

[0038] As described above, the position of the L-shaped frame 6 can be adjusted according to the diameter of the thermal equipment, so that the grinding wheel 4 can grind the damaged coating of thermal equipment of different diameters. In addition, the soft contact enables the grinding wheel to better adapt to the shape changes of the surface of the thermal equipment during processing.

[0039] Please see attached Figure 1 -Attached Figure 7In a preferred embodiment, the grinding assembly includes: a first telescopic rod 8, which is horizontally rotatably installed on the inner side of the vertical side of the L-shaped frame 6, the fixed end and the telescopic end of the first telescopic rod 8 are connected by a spline, a first motor 7 is installed on the outer side of the vertical side of the L-shaped frame 6, the output shaft of the first motor 7 is installed on the end face of the fixed end of the first telescopic rod 8, a grinding disc 4 is fixedly installed on the telescopic end of the first telescopic rod 8, a slide plate 9 is rotatably sleeved on the surface of the first telescopic rod 8, a second disc 22 is rotatably installed on the side of the slide plate 9, a mounting plate 23 is vertically fixedly installed on the top of the horizontal side of the L-shaped frame 6, a first disc 21 is rotatably installed on the side of the mounting plate 23 close to the second disc 22, a rotating rod 10 is horizontally fixedly installed at the center of the side of the first disc 21, and the end of the rotating rod 10 is away from the first disc 21 The rotating rod 10 passes through the second disc 22 and the slide plate 9, and the surface of the rotating rod 10 is slidably arranged on the inner wall of the second disc 22 and the slide plate 9. The surface of the rotating rod 10 is sleeved with a spring 27, and the two ends of the spring 27 are respectively rotatably installed on the opposite surfaces of the first disc 21 and the second disc 22. A plurality of first movable rods 25 uniformly distributed in an annular shape are rotatably installed on the side of the first disc 21, and a counterweight block 24 is rotatably installed on the other end of each first movable rod 25. A second movable rod 26 is also rotatably installed on the corresponding side of each counterweight block 24, and the other end of each second movable rod 26 is rotatably installed on the side of the second disc 22. The fixed end of the first telescopic rod 8 is fixedly sleeved with the second pulley 13, and the rotating rod 10 is fixedly sleeved with the first pulley 12, and the surfaces of the first pulley 12 and the second pulley 13 are sleeved with belts 11;

[0040] Preferably, the grinding disc 4 is in soft contact with the damaged coating of the thermal equipment and can follow the grinding process of the grinding disc 4 so that the grinding disc 4 gradually contacts the damaged coating of the thermal equipment, thereby ensuring the effect of grinding the coating of the thermal equipment when the grinding disc 4 rotates.

[0041] Please see attached Figure 1 -Attached Figure 4 In a preferred embodiment, the rotating assembly includes: a U-shaped frame 14, the U-shaped frame 14 is fixedly mounted on the top of the bottom plate 1, a rotating shaft 16 is rotatably mounted on the top of the horizontal side of the U-shaped frame 14, the rotating shaft 16 is fixedly mounted at the bottom center of the turntable 2, a clamp 5 is mounted on the top of the turntable 2, a second motor 15 is mounted on the top of the bottom plate 1, and the output shaft of the second motor 15 is mounted at the bottom center of the rotating shaft 16;

[0042] Specifically, the second motor 15 drives the rotating shaft 16 to rotate, the rotating shaft 16 drives the rotating disk 2 to rotate, and the rotating disk 2 drives the fixed thermal equipment to rotate, so that the damaged part of the thermal equipment coating and the grinding disk 4 can be located.

[0043] Please see attached Figure 3 -Attached Figure 7In a preferred embodiment, the mobile support assembly includes: a fixed plate 3, the fixed plate 3 is fixedly installed on the top of the bottom plate 1, a slide groove 18 is horizontally opened on the top of the fixed plate 3, a slider 19 is slidably installed inside the slide groove 18, two symmetrically arranged first electric telescopic rods 17 are vertically fixed on the top of the slider 19, the output ends of the two first electric telescopic rods 17 are fixedly installed on the bottom of the horizontal side of the L-shaped frame 6, a second electric telescopic rod 20 is installed on the end of the fixed plate 3, and the output end of the second electric telescopic rod 20 is fixedly installed on the end of the slider 19;

[0044] Furthermore, the second electric telescopic rod 20 drives the slider 19 to move, the movement of the slider 19 drives the two first electric telescopic rods 17 to move, the movement of the two first electric telescopic rods 17 drives the L-shaped frame 6 to move, and the movement of the L-shaped frame 6 drives the grinding wheel 4 to move, which can be used for thermal equipment with different diameters.

[0045] Working principle of the present invention:

[0046] First, place the thermal equipment on the turntable 2 and clamp it with the clamp 5, then drive the slider 19 to move through the second electric telescopic rod 20, the movement of the slider 19 drives the two first electric telescopic rods 17 to move, the movement of the two first electric telescopic rods 17 drives the L-shaped frame 6 to move, and the movement of the L-shaped frame 6 drives the grinding disc 4 to move, so that it can be used for thermal equipment with different diameters;

[0047] Then, the two first electric telescopic rods 17 drive the L-shaped frame 6 to rise and fall, and the L-shaped frame 6 rises and falls to drive the grinding disc 4 and its connecting parts to rise and fall. In addition, the second motor 15 drives the rotating shaft 16 to rotate, and the rotation of the rotating shaft 16 drives the rotating disc 2 to rotate, and the rotation of the rotating disc 2 drives the fixed thermal equipment to rotate, so that the damaged part of the thermal equipment coating and the grinding disc 4 can be located;

[0048] Then, the first motor 7 is started to drive the first telescopic rod 8 to rotate. The rotation of the first telescopic rod 8 drives the second pulley 13 and the grinding disc 4 to rotate. The rotation of the second pulley 13 drives the belt 11 to rotate. The rotation of the belt 11 drives the small pulley to rotate. The rotation of the small pulley drives the rotating rod 10 to rotate. The rotation of the rotating rod 10 drives the first disc 21 to rotate. The rotation of the first disc 21 drives the multiple first movable rods 25 to revolve around the center of the first disc 21. The rotation of the first movable rod 25 drives the counterweight block 24 to rotate. The rotation of the counterweight block 24 drives the second movable rod 26 to rotate. The rotation of the multiple second movable rods 26 drives the second disc 22 to rotate. Due to the effect of centrifugal force, the counterweight block 24 The centrifugal force generated when the first disc 21 rotates with the center of the circle as the center will cause the counterweight block 24 to move, and the movement of the counterweight block 24 drives the second movable rod 26 to move, and the movement of the second movable rod 26 drives the second disc 22 to move and causes the spring 27 to generate elastic force, and the movement of the second disc 22 drives the slide plate 9 to move, and the movement of the slide plate 9 drives the telescopic end of the first telescopic rod 8 to move, and the movement of the telescopic end of the first telescopic rod 8 drives the grinding disc 4 to move, so that the soft contact between the grinding disc 4 and the damaged coating of the thermal equipment is achieved, and the grinding disc 4 can follow the grinding process of the grinding disc 4, so that the grinding disc 4 gradually contacts the damaged coating of the thermal equipment, ensuring the effect of grinding the coating of the thermal equipment when the grinding disc 4 rotates;

[0049] In summary, the damaged coating of the thermal equipment can be polished by reciprocating in sequence. After the damaged coating is polished, the polished part can be sprayed by a spraying mechanism to complete the repair of the thermal equipment coating.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A thermal equipment anti-corrosion coating repair tool, comprising a base plate (1), characterized in that: Also includes: A turntable (2), the turntable (2) being rotatably disposed above the bottom plate (1); A rotating assembly, the rotating assembly being arranged on the top of the bottom plate (1), and being used to rotate the turntable (2); An L-shaped frame (6), wherein the L-shaped frame (6) is arranged above the bottom plate (1); A movable support assembly, the movable support assembly being arranged on the top of the base plate (1), and the movable support assembly being used to move and support the L-shaped frame (6); A grinding component is arranged on an L-shaped frame (6), and is used for grinding damaged parts of the coating of thermal equipment.

2. A thermal equipment anti-corrosion coating repair tool according to claim 1, characterized in that: The grinding assembly comprises: a first telescopic rod (8), the first telescopic rod (8) being horizontally rotatably mounted on the inner side of a vertical side of an L-shaped frame (6), the fixed end and the telescopic end of the first telescopic rod (8) being connected via a spline, a first motor (7) being mounted on the outer side of the vertical side of the L-shaped frame (6), the output shaft of the first motor (7) being mounted on the end face of the fixed end of the first telescopic rod (8), and a grinding disc (4) being fixedly mounted on the telescopic end of the first telescopic rod (8).

3. A thermal equipment anti-corrosion coating repair tool according to claim 2, characterized in that: A slide plate (9) is rotatably sleeved on the surface of the first telescopic rod (8), a second disc (22) is rotatably mounted on the side of the slide plate (9), a mounting plate (23) is vertically fixedly mounted on the top of the horizontal side of the L-shaped frame (6), and a first disc (21) is rotatably mounted on the side of the mounting plate (23) close to the second disc (22).

4. A thermal equipment anti-corrosion coating repair tool according to claim 3, characterized in that: A rotating rod (10) is fixedly mounted horizontally at the center of the side surface of the first disk (21); the end of the rotating rod (10) away from the first disk (21) passes through the second disk (22) and the slide plate (9); and the surface of the rotating rod (10) is slidably arranged on the inner wall surfaces of the second disk (22) and the slide plate (9).

5. The anti-corrosion coating repair tool for thermal equipment according to claim 4, characterized in that: A spring (27) is sleeved on the surface of the rotating rod (10), and two ends of the spring (27) are rotatably mounted on the opposite surfaces of the first disc (21) and the second disc (22), respectively. A plurality of first movable rods (25) evenly distributed in an annular shape are rotatably mounted on the side surface of the first disc (21), and a counterweight block (24) is rotatably mounted on the other end of each of the first movable rods (25). A second movable rod (26) is also rotatably mounted on the corresponding side surface of each of the counterweight blocks (24), and the other end of each of the second movable rods (26) is rotatably mounted on the side surface of the second disc (22).

6. The anti-corrosion coating repair tool for thermal equipment according to claim 5, characterized in that: The fixed end of the first telescopic rod (8) is fixedly sleeved with a second pulley (13), the rotating rod (10) is fixedly sleeved with a first pulley (12), and the surfaces of the first pulley (12) and the second pulley (13) are sleeved with belts (11).

7. The anti-corrosion coating repair tool for thermal equipment according to claim 6, characterized in that: The rotating assembly comprises: a U-shaped frame (14), the U-shaped frame (14) is fixedly mounted on the top of the base plate (1), a rotating shaft (16) is rotatably mounted on the top of the horizontal side of the U-shaped frame (14), the rotating shaft (16) is fixedly mounted at the bottom center of the turntable (2), a clamp (5) is mounted on the top of the turntable (2), a second motor (15) is mounted on the top of the base plate (1), and the output shaft of the second motor (15) is mounted at the bottom center of the rotating shaft (16).

8. The anti-corrosion coating repair tool for thermal equipment according to claim 7, characterized in that: The movable support assembly comprises: a fixed plate (3), the fixed plate (3) is fixedly mounted on the top of the base plate (1), a sliding groove (18) is horizontally opened on the top of the fixed plate (3), and a sliding block (19) is slidably mounted inside the sliding groove (18).

9. The anti-corrosion coating repair tool for thermal equipment according to claim 8, characterized in that: Two symmetrically arranged first electric telescopic rods (17) are vertically fixed on the top of the slider (19), and the output ends of the two first electric telescopic rods (17) are fixedly mounted on the bottom of the horizontal side of the L-shaped frame (6). A second electric telescopic rod (20) is mounted on the end of the fixed plate (3), and the output end of the second electric telescopic rod (20) is fixedly mounted on the end of the slider (19).

10. The method for using a thermal equipment anti-corrosion coating repair tool according to claim 9, characterized in that: The following steps are involved: S1: First, the thermal equipment is placed on the turntable (2) and the clamp (5) is used to clamp it. Then, the second electric telescopic rod (20) drives the slider (19) to move. The movement of the slider (19) drives the two first electric telescopic rods (17) to move. The movement of the two first electric telescopic rods (17) drives the L-shaped frame (6). The movement of the L-shaped frame (6) drives the grinding disc (4) to move. Thus, the thermal equipment with different diameters can be used. S2: Then, the two first electric telescopic rods (17) drive the L-shaped frame (6) to rise and fall, and the L-shaped frame (6) rises and falls, which drives the grinding disc (4) and its connecting parts to rise and fall. In addition, the second motor (15) drives the rotating shaft (16) to rotate, and the rotation of the rotating shaft (16) drives the rotating disc (2) to rotate, and the rotation of the rotating disc (2) drives the fixed thermal equipment to rotate, so that the damaged part of the coating of the thermal equipment and the grinding disc (4) can be located; S3: Then the first motor (7) is started to drive the first telescopic rod (8) to rotate, the rotation of the first telescopic rod (8) drives the second pulley (13) and the grinding disc (4) to rotate, the rotation of the second pulley (13) drives the belt (11) to rotate, the rotation of the belt (11) drives the small pulley to rotate, the rotation of the small pulley drives the rotating rod (10) to rotate, the rotation of the rotating rod (10) drives the first disc (21) to rotate, the rotation of the first disc (21) drives the plurality of first movable rods (25) to revolve around the center of the first disc (21), the rotation of the first movable rod (25) drives the counterweight (24) to rotate, the rotation of the counterweight (24) drives the second movable rod (26) to rotate, the rotation of the plurality of second movable rods (26) drives the second disc (22) to rotate, due to the effect of centrifugal force, the counterweight (24) The centrifugal force generated when the weight block (24) rotates with the center of the first disc (21) as the center of the circle causes the counterweight block (24) to move, and the movement of the counterweight block (24) drives the second movable rod (26) to move, and the movement of the second movable rod (26) drives the second disc (22) to move and causes the spring (27) to generate elastic force, and the movement of the second disc (22) drives the slide plate (9) to move, and the movement of the slide plate (9) drives the telescopic end of the first telescopic rod (8) to move, and the movement of the telescopic end of the first telescopic rod (8) drives the grinding disc (4) to move, so that the grinding disc (4) and the damaged coating of the thermal equipment are in soft contact, and the grinding disc (4) can follow the grinding process of the grinding disc (4), so that the grinding disc (4) gradually contacts the damaged coating of the thermal equipment, thereby ensuring the effect of grinding the coating of the thermal equipment when the grinding disc (4) rotates.

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