A wear-resistant and mud-proof hydraulic milling and stirring head and its manufacturing and installation method

Abstract

The present application provides an abrasion-resistant and mud-proof hydraulic milling and stirring head and its manufacturing and installation method. An abrasion-resistant and mud-proof hydraulic milling and stirring head includes a first frame body. A stirring mechanism is provided at the bottom end of the first frame body. The stirring mechanism includes two stirring components distributed along a first direction. The stirring components are rotatably connected to the bottom end of the first frame body, and the stirring components are used for stirring slurry-mixed soil. The stirring components are coated with a coating component, and the coating component is an abrasion-resistant and mud-proof material. An abrasion-resistant and mud-proof hydraulic milling and stirring head further includes a driving component, and the driving component is used for driving the stirring components to rotate. During the actual construction process, since the mud-proof material used is not only highly wear-resistant but also has self-lubricity, the milling and stirring head can avoid sticking to soil bodies such as cement soil and sticky mud. At the same time, the frictional resistance between the milling and stirring head and the soil body can be greatly reduced, thereby preventing high-frequency damage and repair of the milling wheel, and ensuring that the milling and stirring head achieves low energy consumption, low cost and high-efficiency construction during the actual construction process.

Description

Technical Field

[0001] This application relates to the technical field of hydropower construction, and particularly relates to an abrasion-resistant and mud-proof hydraulic milling and stirring head and its manufacturing and installation method. Background Art

[0002] As the core component of the deep mixing equipment, the milling and stirring head needs to withstand ton-level torque to cut the formation and stir the mixed soil of cement slurry and the original formation in the construction method of the deep cement-soil mixing wall. Its working depth can reach dozens of meters. In order to cope with various harsh working environments, the milling and stirring head is made of steel throughout. During the actual construction process, it is found that due to the complex soil quality in the deep formation, the milling wheel is often wrapped by mud, resulting in a sharp reduction in cutting efficiency. In some cases, manual cleaning is even required to continue the construction; this poses a great resistance to the equipment settlement milling construction; the parts of the existing milling and stirring head in contact with the mud are made of alloy steel materials, and its surface layer only has ordinary paint, which is easy to fall off, and the milling wheel is easy to wear. Especially, the milling head is easy to stick with cement soil. Once local angles are adhered to mortar and soil, a large amount of soil will rapidly accumulate and wrap the cutter head, resulting in a sharp reduction in construction efficiency and even being unable to work properly; therefore, exploring an abrasion-resistant and mud-proof hydraulic milling and stirring head is of top priority. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide an abrasion-resistant and mud-proof hydraulic milling and stirring head and its manufacturing and installation method.

[0004] In the first aspect, this application provides an abrasion-resistant and mud-proof hydraulic milling and stirring head, including:

[0005] A first frame;

[0006] A stirring mechanism, the stirring mechanism includes two stirring components distributed along a first direction, and the stirring components are rotatably connected to the bottom end of the first frame; the stirring components are used for stirring the mud mixture.

[0007] A covering component, the covering component covers the outside of the stirring component, and the covering component is made of abrasion-resistant and mud-proof material.

[0008] A driving component, the driving component is used for driving the stirring component to rotate.

[0009] According to the technical solution provided by the embodiment of the present application, the stirring assembly includes a rotating wheel rotatably connected to the first frame body, and a plurality of rotors circumferentially arrayed on the outer wall of the rotating wheel; the axis direction of the rotating wheel is the second direction, and the second direction is perpendicular to the first direction; the covering assembly includes a first covering layer covering the outside of the rotating wheel, and a second covering layer covering the outside of the rotor, the material of the first covering layer is ultra-high molecular weight polyethylene, and the material of the second covering layer is polyether ketone ketone.

[0010] According to the technical solution provided by the embodiment of the present application, a plurality of first connecting pieces are spot-welded on the rotating wheel, the extending direction of the first connecting piece is the radial direction, a plurality of first openings corresponding to the first connecting pieces are provided on the first covering layer, the first covering layer passes through the first connecting piece, and a first fastening piece is provided on the exposed first connecting piece, and the first fastening piece is used to fix the first covering layer.

[0011] According to the technical solution provided by the embodiment of the present application, a third covering layer is covered outside the first fastening piece.

[0012] According to the technical solution provided by the embodiment of the present application, the bottom of the first frame body includes two connecting brackets, a first included angle is formed between the two connecting brackets, and the opening direction of the first included angle faces away from the side of the first frame body; a first through hole is provided on the side of each connecting bracket away from the first frame body, and the axis direction of the first through hole is the second direction; a rotating shaft is provided in the middle of the rotating wheel, and the rotating shaft passes through the corresponding first through hole and is rotatably connected to the connecting frame body.

[0013] According to the technical solution provided by the embodiment of the present application, a plurality of slurry spraying pipes are provided between the two connecting brackets, the extending direction of the slurry spraying pipe is the third direction, and the third direction is perpendicular to the first direction and perpendicular to the second direction; a first outlet is provided at the end of the slurry spraying pipe close to the stirring assembly, and when the stirring assembly works, slurry can be sprayed from the first outlet.

[0014] According to the technical solution provided by the embodiment of the present application, a high-pressure air pipe is also provided between the two connecting brackets, the extending direction of the high-pressure air pipe is the third direction, and a second outlet is provided at the end of the high-pressure air pipe close to the stirring assembly, and when the stirring assembly works, high-pressure gas is released from the second outlet.

[0015] According to the technical solution provided by the embodiment of the present application, a swing knife is provided at the end of each rotor away from the rotating wheel; a cutter tooth is provided at the end of the swing knife away from the rotating wheel, and the cutter tooth is used for cutting the slurry-mixed soil.

[0016] According to the technical solution provided by the embodiments of the present application, the second coating layer is sprayed on the rotor, the swing cutter, the outer walls of both sides of the rotating wheel along the second direction, and the first frame body by using the hot-melt electrostatic powder spraying technology.

[0017] In a second aspect, the present application proposes a manufacturing and installation method for the above-mentioned wear-resistant and mud-proof hydraulic milling cutter head, including the following steps:

[0018] S101: Set installation parameters, where the installation parameters include the size and quantity of the rotor, and the position and quantity of the first connecting piece;

[0019] S102: Fix the rotor and the first connecting piece to the rotating wheel based on the installation parameters;

[0020] S103: Cut a second opening and the first opening in the first coating layer based on the size and quantity of the rotor; the rotor can pass through the second opening, and the first connecting piece can pass through the first opening;

[0021] S104: Wrap the first coating layer around the outside of the rotating wheel;

[0022] S105: Fix the first coating layer;

[0023] S106: Uniformly heat the outer walls of both sides of the rotor, the swing cutter, the rotating wheel along the second direction, and the first frame body;

[0024] S107: Spray the second coating layer on the outer walls of both sides of the rotor, the swing cutter, the rotating wheel along the second direction, and the first frame body;

[0025] S108: Let the rotor, the swing cutter, the outer walls of both sides of the rotating wheel along the second direction, and the first frame body stand still;

[0026] S109: Repeat steps S106 - S108.

[0027] In summary, the present application proposes a wear-resistant and mud-proof hydraulic milling and stirring head and its manufacturing and installation method. A wear-resistant and mud-proof hydraulic milling and stirring head includes a first frame body. A stirring mechanism is provided at the bottom end of the first frame body. The stirring mechanism includes two stirring components distributed along a first direction. The stirring components are rotatably connected to the bottom end of the first frame body and are used for stirring mud and soil mixture. A covering component is wrapped outside the stirring components, and the covering component is a wear-resistant and mud-proof material. A wear-resistant and mud-proof hydraulic milling and stirring head further includes a driving component for driving the stirring components to rotate. During the actual construction process, due to the self-lubricating property of the mud-proof material used, the milling and stirring head can avoid sticking to cement soil, sticky mud and other soils. At the same time, the frictional resistance between the milling head and the soil can be greatly reduced, preventing high-frequency damage and repair of the milling wheel, so as to ensure that the milling and stirring head achieves low energy consumption, low material cost and efficient construction during the actual construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. is a schematic structural diagram of a wear-resistant and mud-proof hydraulic milling and stirring head provided by an embodiment of the present application;

[0029] Figure 2 is Figure 1 an enlarged view of A in;

[0030] Figure 3 FIG. is a flowchart of a manufacturing and installation method of a wear-resistant and mud-proof hydraulic milling and stirring head provided by an embodiment of the present application.

[0031] The text markings in the figure are shown as:

[0032] 1. First frame body; 101. Connecting bracket; 2. Stirring component; 201. Rotating wheel; 202. Rotor; 203. Rotating shaft; 3. First covering layer; 4. First opening; 5. First connecting piece; 501. First fastener; 6. Swing cutter; 601. Tooth; 602. Second opening; 603. First groove; 7. Spray pipe; 8. High-pressure air pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The present application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention and are not intended to limit the invention. In addition, it should be noted that for the convenience of description, only the parts related to the invention are shown in the drawings.

[0034] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0035] Embodiment 1

[0036] As mentioned in the background art, in view of the problems in the prior art, the present application proposes a wear-resistant and mud-proof hydraulic milling and stirring head, including:

[0037] A first frame 1; in certain specific scenarios, a guide rod is connected to the top end of the first frame 1, and a hydraulic cylinder is provided at the end of the guide rod away from the first frame 1. The hydraulic cylinder can drive the guide rod to drive the first frame 1 to lift and lower.

[0038] A stirring mechanism, the stirring mechanism includes two stirring components 2 arranged along a first direction. The stirring components 2 are rotatably connected to the bottom end of the first frame 1. The stirring components 2 are used for stirring the mud mixture. Optionally, the first direction is the horizontal direction, the stirring mechanism is a hydraulic milling and stirring head mechanism, and the stirring component 2 is a milling head. In certain specific scenarios, when the hydraulic cylinder drives the guide rod to drive the first frame 1 and the hydraulic milling and stirring head mechanism to rise, the two milling heads rotate in a direction away from each other. When the hydraulic cylinder drives the guide rod to drive the first frame 1 and the hydraulic milling and stirring head mechanism to descend, the two milling heads rotate in a direction close to each other, which can ensure sufficient stirring of the mud mixture.

[0039] A covering component, the covering component covers the outside of the stirring component 2, and the covering component is made of wear-resistant and mud-proof material.

[0040] A driving component, the driving component is used to drive the stirring component 2 to rotate. Optionally, the driving component is a driving motor. A sensor is provided on the first frame 1. The sensor transmits a signal to a controller, and the controller can control the driving motor to drive the two milling heads to rotate. During the actual construction process, the wear-resistant and mud-proof property of the covering component avoids the adhesion between the stirring mechanism and the soil when stirring the mud mixture, thereby ensuring that the milling and stirring head achieves low energy consumption, low material cost and high-efficiency construction during the actual construction process.

[0041] Furthermore, the stirring assembly 2 includes a rotating wheel 201 rotatably connected to the first frame 1, and a plurality of rotors 202 circumferentially and arrayedly distributed on the outer wall of the rotating wheel 201; the axis direction of the rotating wheel 201 is the second direction, and the second direction is perpendicular to the first direction; the covering assembly includes a first covering layer 3 covering the outside of the rotating wheel 201 and a second covering layer covering the outside of the rotor 202. The material of the first covering layer 3 is ultra-high molecular weight polyethylene, and the material of the second covering layer is polyether ketone ketone; optionally, the second direction is the horizontal direction, and the rotating wheel 201 is a cylindrical part, so its outer wall is a toroidal surface; in certain specific scenarios, the rotating wheel 201 includes a first part and a second part. Along the second direction, the first part is provided with a first row and a second row, and the second part is provided with a third row and a fourth row. Four of the rotors 202 are circumferentially and arrayedly distributed on each of the first row, the second row, the third row and the fourth row, and the projections of the rotors 202 provided on the first row and the second row on the first plane do not overlap, and the projections of the rotors 202 provided on the first row and the second row on the first plane also do not overlap; the bottom end of the rotor 202 is screwed to the outer wall of the rotating wheel 201, and the first covering layer 3 is wrapped on the toroidal surface and the thickness in the direction away from the toroidal surface is between 6 mm and 10 mm; both the first covering layer 3 and the second covering layer have wear-resistant and mud-proof properties, which can avoid the adhesion and accumulation of various sticky muds and mortar such as cement soil, reduce the resistance when the two milling heads are tunneling, and also prevent the rotor 202 from falling off, thereby realizing efficient construction and improving economic benefits.

[0042] Furthermore, as Figure 2As shown, a plurality of first connectors 5 are spot-welded to the rotating wheel 201. The extending direction of the first connectors 5 is the radial direction. A plurality of first openings 4 corresponding to the first connectors 5 are provided on the first coating layer 3. The first coating layer 3 passes through the first connectors 5. A first fastener 501 is provided on the exposed first connectors 5. The first fastener 501 is used to fix the first coating layer 3. Further, the first fastener 501 is coated with a third coating layer. Optionally, the first connectors 5 are special bolts with a height of 1.5 cm, and the first fastener 501 is a nut matching the bolt. In certain specific scenarios, the toroidal surface is equally divided into six equal parts, and three bolts are respectively arranged and distributed on the six equal division lines of the first part and the second part. The three bolts are spot-welded to the toroidal surface by a spot welder. The first openings 4 on the first coating layer 3 are obtained by cutting with a tool steel milling cutter. After the first coating layer 3 is laid on the toroidal surface, first tighten the nuts on both sides along the second direction of the first part and the second part, and then tighten the middle nut, which can prevent the hydraulic milling head mechanism from falling during the working process, thereby ensuring the working efficiency. Optionally, the third coating layer is anti-rust paint. After tightening the nuts, apply the anti-rust paint on the nuts and the exposed bolts, which can prevent the bolts from rusting due to the long-term operation of the hydraulic milling head mechanism in the slurry mixture soil, thereby extending its service life.

[0043] Further, the bottom of the first frame 1 includes two connecting brackets 101. A first included angle is formed between the two connecting brackets 101. The opening direction of the first included angle faces away from the first frame 1. A first through hole is provided on the side of each connecting bracket 101 away from the first frame 1. The axial direction of the first through hole is the second direction. A rotating shaft 203 is provided in the middle of the rotating wheel 201. The rotating shaft 203 passes through the corresponding first through hole and is rotatably connected to the connecting frame body. Optionally, the second direction is the horizontal direction. In certain specific scenarios, connecting the rotating shaft 203 to the connecting bracket 101 and the rotating wheel 201 can ensure the smooth rotation of the two milling heads during the lifting process.

[0044] Furthermore, a plurality of slurry spraying pipes 7 are provided between the two connecting brackets 101. The extending direction of the slurry spraying pipe 7 is the third direction, and the third direction is perpendicular to the first direction and perpendicular to the second direction. A first outlet is provided at the end of the slurry spraying pipe 7 close to the stirring assembly 2. When the stirring assembly 2 works, slurry can be sprayed from the first outlet. Wherein, a second through hole is provided between the two connecting brackets 101. Optionally, the number of the slurry spraying pipes 7 is two. In certain specific scenarios, the humidity of the soil to be stirred is relatively low. When the hydraulic milling and stirring head mechanism rises and falls, the two slurry spraying pipes 7 can spray cement slurry to moisten the soil to be stirred, and the resistance of the hydraulic milling and stirring head mechanism to descend can be reduced.

[0045] Furthermore, a high-pressure air pipe 8 is also provided between the two connecting brackets 101. The extending direction of the high-pressure air pipe 8 is the third direction. A second outlet is provided at the end of the high-pressure air pipe 8 close to the stirring assembly 2. When the stirring assembly 2 works, high-pressure gas is released from the second outlet. Wherein, the high-pressure air pipe 8 is arranged between the two slurry spraying pipes 7. In certain specific scenarios, a high-pressure machine is provided at the end of the high-pressure air pipe 8 far from the milling head. When the hydraulic milling and stirring head mechanism rises and falls, the high-pressure machine can control the high-pressure air pipe 8 to release high-pressure gas through the second outlet, and the high-pressure gas impacts the ground downward to reduce the resistance when the hydraulic milling and stirring head mechanism descends.

[0046] Furthermore, a swing blade 6 is provided at the end of each rotor 202 far from the rotating wheel 201. A cutter tooth 601 is provided at the end of the swing blade 6 far from the rotating wheel 201, and the cutter tooth 601 is used for cutting the slurry-mixed soil. In certain specific scenarios, a first groove 603 is provided at the end of each rotor 202 far from the rotating shaft 203. The opening direction of the first groove 603 faces away from the rotating shaft 203 side. The bottom end of the swing blade 6 is arranged in the first groove 603 and is in close fit with the inner wall of the first groove 603. As Figure 1 shown, the cutter tooth 601 is provided at the top end of the swing blade 6 on the rotating wheel 201. The cutter tooth 601 on the left rotating wheel 201 is arranged on the right side of the swing blade 6, and the cutter tooth 601 on the right rotating wheel 201 is arranged on the left side of the swing blade 6, which can ensure that the milling and stirring head stirs the slurry-mixed soil more efficiently.

[0047] Further, the hot-melt electrostatic powder spraying technique is adopted to spray the second coating layer on the outer walls of both sides of the rotor 202, the swing cutter 6, the rotating wheel 201 along the second direction, and the first frame body 1; in certain specific scenarios, the material of the second coating layer is polyether ketone ketone, which is in a solid powder state at normal temperature and needs to be attached to the outer walls of both sides of the rotor 202, the swing cutter 6, the rotating wheel 201 along the second direction, and the first frame body 1 under high-temperature conditions. Therefore, before spraying the polyether ketone ketone, it is necessary to heat the outer walls of both sides of the rotor 202, the swing cutter 6, the rotating wheel 201 along the second direction, and the first frame body 1; in addition, the second coating layer is not sprayed on the outside of the cutter teeth 601, which can avoid the reduction of the efficiency of the cutter teeth 601 in cutting the mud mixture soil;

[0048] Optionally, the heating mechanism selected for the hot-melt electrostatic powder spraying technique is a hot-melt furnace. The outer walls of both sides of the rotor 202, the swing cutter 6, the rotating wheel 201 along the second direction, and the first frame body 1 can be evenly heated in the hot-melt furnace to a surface temperature of 360 °C (higher than the melting point of polyether ketone ketone, which is 305 °C - 355 °C). After being taken out, use an electrostatic powder spray gun to spray the first layer of polyether ketone ketone powder on the outer walls of both sides of the rotor 202, the swing cutter 6, the rotating wheel 201 along the second direction, and the first frame body 1. Then, let the surface temperature of the outer walls of both sides of the rotor 202, the swing cutter 6, the rotating wheel 201 along the second direction, and the first frame body 1 drop below 305 °C, and repeat the above heating, spraying, and standing processes 3 - 5 times; an air compressor is provided inside the electrostatic powder spray gun, and the air compressor can ensure that the pressure supplied each time the electrostatic powder spray gun sprays the polyether ketone ketone is 0.1 - 0.3 Mpa, and the thickness of each spray of the polyether ketone ketone is approximately 0.05 mm. In certain specific scenarios, the required thickness is 0.2 - 0.3 mm, so it needs to be sprayed 3 - 5 times; after 3 - 5 sprays are completed, cool for 3 - 5 h, and then the milling head can be assembled and constructed; during the actual construction process, the first coating layer 3 and the second coating layer wrap the wear-resistant and mud-proof hydraulic milling and stirring head, and the wear-resistant and mud-proof property of the coating assembly avoids the adhesion between the stirring mechanism and the soil when stirring the mud mixture soil, thereby ensuring low energy consumption, low material cost, and high-efficiency construction of the milling and stirring head during the actual construction process.

[0049] Embodiment 2

[0050] On the basis of Embodiment 1, further, the present application proposes a manufacturing and installation method for the above-mentioned wear-resistant and mud-proof hydraulic milling and stirring head, as Figure 3 shown, including the following steps:

[0051] S101: Set installation parameters, where the installation parameters include the size and quantity of the rotor 202, and the position and quantity of the first connecting member 5; in certain specific scenarios, the rotating wheel 201 includes a first part and a second part. Along the second direction, a first row and a second row are provided on the first part, and a third row and a fourth row are provided on the second part. Four rotors 202 are circumferentially and arrayedly distributed on each of the first row, the second row, the third row, and the fourth row, and the projections of the rotors 202 provided on the first row and the second row on the first plane do not overlap, and the projections of the rotors 202 provided on the first row and the second row on the first plane also do not overlap; divide the toroidal surface into six equal parts, and three bolts are respectively arranged and arranged on the six equal division lines of the first part and the second part;

[0052] S102: Fix the rotor 202 and the first connecting member 5 to the rotating wheel 201 based on the installation parameters; optionally, the bottom end of the rotor 202 is screwed to the toroidal surface, and the bolt is spot welded to the toroidal surface by a spot welder;

[0053] S103: Cut the second opening 602 and the first opening 4 on the first coating layer 3 based on the size and quantity of the rotor 202; the rotor 202 can pass through the second opening 602, and the first connecting member 5 can pass through the first opening 4; wherein, the first opening 4 and the second opening 602 are obtained by cutting on the first coating layer 3 by a cutting machine;

[0054] S104: Wrap the first coating layer 3 outside the rotating wheel 201; further, lay the first coating layer 3 on the toroidal surface;

[0055] S105: Fix the first coating layer 3; in certain specific scenarios, after the first coating layer 3 is laid on the toroidal surface, first tighten the nuts on both sides along the second direction of the first part and the second part, and then tighten the middle nut, so as to fix the first coating layer 3;

[0056] S106: Uniformly heat the rotor 202, the swing cutter 6, the outer walls of both sides of the rotating wheel 201 along the second direction, and the first frame 1; In certain specific scenarios, the material of the second coating layer is polyetherketoneketone, which is a solid powder at room temperature and needs to be attached to the outer walls of both sides of the rotor 202, the swing cutter 6, the rotating wheel 201 along the second direction, and the first frame 1 under high-temperature conditions. Therefore, before spraying the polyetherketoneketone, it is necessary to heat the outer walls of both sides of the rotor 202, the swing cutter 6, the rotating wheel 201 along the second direction, and the first frame 1. Optionally, the heating mechanism selected for the hot-melt electrostatic powder spraying technology is a hot-melt furnace, and the outer walls of both sides of the rotor 202, the swing cutter 6, the rotating wheel 201 along the second direction, and the first frame 1 can be uniformly heated in the hot-melt furnace to a surface temperature of about 360°C;

[0057] S107: Spray the second coating layer on the outer walls of both sides of the rotor 202, the swing cutter 6, the rotating wheel 201 along the second direction, and the first frame 1; Optionally, after taking out the outer walls of both sides of the rotor 202, the swing cutter 6, the rotating wheel 201 along the second direction, and the first frame 1 that have been uniformly heated, use an electrostatic powder spray gun to spray the first layer of polyetherketoneketone on them; The thickness of each spray of the polyetherketoneketone is about 0.05 mm. In certain specific scenarios, the required thickness is 0.2 - 0.3 mm, so it needs to be sprayed 3 - 5 times;

[0058] S108: Let the outer walls of both sides of the rotor 202, the swing cutter 6, the rotating wheel 201 along the second direction, and the first frame 1 stand still; In certain specific scenarios, after spraying the first layer of polyetherketoneketone, let the outer walls of both sides of the rotor 202, the swing cutter 6, the rotating wheel 201 along the second direction, and the first frame 1 stand still for about 2 - 3 minutes to make its surface temperature drop below 305°C;

[0059] S109: Repeat steps S106 - S108; In certain specific scenarios, the thickness of each spray of the polyetherketoneketone is about 0.05 mm, but the required thickness is 0.2 - 0.3 mm, so it needs to be sprayed 3 - 5 times and repeat the above heating, spraying, and standing still processes 3 - 5 times; After completing 3 - 5 sprays, cool for 3 - 5 hours to start assembly; In the actual construction process, the first coating layer 3 and the second coating layer wrap the wear-resistant anti-mud hydraulic milling and stirring head, which can avoid sticking to cement soil, muddy soil and other soils, reduce the frictional resistance between the milling head and the soil, and prevent high-frequency wear and repair of the milling wheel, so as to achieve low energy consumption, low cost and high-efficiency construction.

[0060] In this text, specific examples are used to elaborate on the principles and implementation manners of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. The above is only the preferred implementation manner of this application. It should be noted that due to the limitation of literal expression, while there are objectively infinite specific structures, for those of ordinary skill in the art, without departing from the principle of this invention, several improvements, embellishments or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, embellishments, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, shall all be regarded as the protection scope of this application.

Claims

1. A wear-resistant and mud-proof hydraulic milling and stirring head, characterized in that Comprising: The first frame body (1); A stirring mechanism, the stirring mechanism includes two stirring components (2) arranged along the first direction, and the stirring components (2) are rotatably connected to the bottom end of the first frame body (1); the stirring components (2) are used for stirring the slurry mixture soil; A coating component, the coating component is coated outside the stirring component (2), and the coating component is made of wear-resistant and mud-proof material; A driving component, the driving component is used for driving the stirring component (2) to rotate; The stirring component (2) includes a rotating wheel (201) rotatably connected to the first frame body (1) and a plurality of rotors (202) arranged in a circumferential array on the outer wall of the rotating wheel (201); the axis direction of the rotating wheel (201) is the second direction, and the second direction is perpendicular to the first direction; the coating component includes a first coating layer (3) coated outside the rotating wheel (201) and a second coating layer coated outside the rotor (202), the material of the first coating layer (3) is ultra-high molecular weight polyethylene, and the material of the second coating layer is polyether ketone ketone; A plurality of first connecting pieces (5) are spot-welded on the rotating wheel (201), the extending direction of the first connecting pieces (5) is the radial direction, a plurality of first openings (4) corresponding to the first connecting pieces (5) are arranged on the first coating layer (3), the first coating layer (3) passes through the first connecting pieces (5), and a first fastener (501) is arranged on the exposed first connecting pieces (5), and the first fastener (501) is used for fixing the first coating layer (3); The bottom of the first frame body (1) includes two connecting brackets (101), a first included angle is formed between the two connecting brackets (101), and the opening direction of the first included angle faces away from the first frame body (1); a first through hole is arranged on the side of each connecting bracket (101) away from the first frame body (1), and the axis direction of the first through hole is the second direction; a rotating shaft (203) is arranged in the middle of the rotating wheel (201), the rotating shaft (203) passes through the corresponding first through hole and is rotatably connected to the connecting bracket; A swing blade (6) is arranged at the end of each rotor (202) away from the rotating wheel (201); a cutter tooth (601) is arranged at the end of the swing blade (6) away from the rotating wheel (201), and the cutter tooth (601) is used for cutting the slurry mixture soil; The second coating layer is sprayed on the rotor (202), the swing blade (6), the outer walls on both sides of the rotating wheel (201) along the second direction and the first frame body (1) by using the hot melt electrostatic powder spraying technology.

2. The wear-resistant and mud-proof hydraulic milling and stirring head according to claim 1, wherein: The first fastener (501) is coated with a third coating layer.

3. The wear-resistant and mud-proof hydraulic milling and stirring head according to claim 1, characterized in that: A plurality of slurry spraying pipes (7) are arranged between the two connecting brackets (101), the extending direction of the slurry spraying pipes (7) is the third direction, the third direction is perpendicular to the first direction and perpendicular to the second direction; a first outlet is arranged at the end of the slurry spraying pipe (7) close to the stirring component (2), and when the stirring component (2) works, slurry is sprayed from the first outlet.

4. The wear-resistant and mud-proof hydraulic milling and stirring head according to claim 3, wherein: A high-pressure air pipe (8) is further provided between the two connecting brackets (101). The extending direction of the high-pressure air pipe (8) is the third direction. A second outlet is provided at the end of the high-pressure air pipe (8) close to the stirring assembly (2). When the stirring assembly (2) works, high-pressure gas is released from the second outlet.

5. A manufacturing and installation method of the wear-resistant and mud-proof hydraulic milling and stirring head according to any one of claims 1-4, characterized in that, The method includes the following steps: S101: Set installation parameters, where the installation parameters include the size and quantity of the rotor (202) and the position and quantity of the first connecting member (5); S102: Fix the rotor (202) and the first connecting member (5) on the rotating wheel (201) based on the installation parameters; S103: Cut a second opening (602) and the first opening (4) in the first coating layer (3) based on the size and quantity of the rotor (202); the rotor (202) can pass through the second opening (602), and the first connecting member (5) can pass through the first opening (4); S104: Wrap the first coating layer (3) outside the rotating wheel (201); S105: Fix the first coating layer (3); S106: Uniformly heat the rotor (202), the swing cutter (6), the outer walls of both sides of the rotating wheel (201) along the second direction, and the first frame body (1); S107: Spray the second coating layer on the rotor (202), the swing cutter (6), the outer walls of both sides of the rotating wheel (201) along the second direction, and the first frame body (1); S108: Let the rotor (202), the swing cutter (6), the outer walls of both sides of the rotating wheel (201) along the second direction, and the first frame body (1) stand still; S109: Repeat steps S106 - S108.

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