阅读说明：本技术 一种阻燃耐高温合金波纹管及其制备方法 (Flame-retardant high-temperature-resistant alloy corrugated pipe and preparation method thereof ) 是由 刘俊峰 汪进南 潘学东 于 2021-08-03 设计创作，主要内容包括：本发明公开一种阻燃耐高温合金波纹管及其制备方法,涉及金属波纹管技术领域,包括步骤一：制备原料合金管,对原料合金管进行预处理,得到初始管材；步骤二：将初始管材变薄拉伸,得到原料管材：步骤三：将原料管材进行波纹成形工序,得到初品波纹管；步骤四：将初品波纹管进行除油、去除氧化皮,再输送至酸洗设备中,进行酸洗和清理,得到半成品波纹管；步骤五：对半成品波纹管的表面进行整形,并且表面喷涂阻燃涂层,得到成品波纹管。本发明在合金波纹管加工完成后,在其外侧增设有阻燃涂层,从而可以提高合金波纹管的阻燃和耐高温能力；并且本发明在合金波纹管的加工工艺中,通过酸洗设备对合金波纹管进行酸洗工艺。(The invention discloses a flame-retardant high-temperature-resistant alloy corrugated pipe and a preparation method thereof, relating to the technical field of metal corrugated pipes and comprising the following steps: preparing a raw material alloy pipe, and pretreating the raw material alloy pipe to obtain an initial pipe; step two: thinning and stretching the initial pipe to obtain a raw material pipe: step three: performing a corrugation forming process on a raw material pipe to obtain an initial corrugated pipe; step four: removing oil and oxide skin of the primary corrugated pipe, conveying the primary corrugated pipe to pickling equipment, pickling and cleaning to obtain a semi-finished corrugated pipe; step five: and shaping the surface of the semi-finished corrugated pipe, and spraying a flame-retardant coating on the surface to obtain the finished corrugated pipe. After the alloy corrugated pipe is processed, the flame-retardant coating is additionally arranged on the outer side of the alloy corrugated pipe, so that the flame-retardant and high-temperature-resistant capabilities of the alloy corrugated pipe can be improved; in the processing technology of the alloy corrugated pipe, the pickling technology is carried out on the alloy corrugated pipe through pickling equipment.)

1. The preparation method of the flame-retardant high-temperature-resistant alloy corrugated pipe is characterized by comprising the following steps of:

the method comprises the following steps: preparing a raw material alloy pipe, and pretreating the raw material alloy pipe to obtain an initial pipe;

step two: thinning and stretching the initial pipe to obtain a raw material pipe:

step three: performing a corrugation forming process on a raw material pipe to obtain an initial corrugated pipe;

step four: removing oil and oxide skin of the primary corrugated pipe, conveying the primary corrugated pipe to pickling equipment, pickling and cleaning to obtain a semi-finished corrugated pipe;

step five: and shaping the surface of the semi-finished corrugated pipe, and spraying a flame-retardant coating on the surface to obtain the finished corrugated pipe.

2. The preparation method of the flame-retardant high-temperature-resistant alloy corrugated pipe as claimed in claim 1, wherein the pickling device comprises a use method comprising the following steps:

s1: moving the pipe to one side of a pipe positioning shifter (5) through a pipe conveying frame (4);

s2: starting the pipe positioning shifter (5), and assembling the pipe with the driving support (11) and the movable support (12) in sequence;

s3: starting a driving seat (7), and moving the pipe into a pickling tank (2) for pickling;

s4: starting a driving seat (7) and moving the pipe into the cleaning tank (3);

s5: the cleaning shielding component (13) is started, the cleaning tank (3) is covered by the cleaning shielding component (13), and then the driving support (11) is started to drive the pipe to rotate and clean in the cleaning tank (3).

3. The method for preparing the flame-retardant high-temperature-resistant alloy corrugated pipe as claimed in claim 2, wherein in the step S5, the rotating speed of the pipe is 60-85 r/min.

4. The preparation method of the flame-retardant high-temperature-resistant alloy corrugated pipe as claimed in claim 2, wherein the moving speed of the driving seat (7) is 25-30 m/min.

5. The method for preparing the flame-retardant high-temperature-resistant alloy corrugated pipe as claimed in claim 2, wherein in the step S3, the pickling time is 30-100 min.

6. The method for preparing the flame-retardant high-temperature-resistant alloy corrugated pipe as claimed in claim 5, wherein in the step S3, the pipe vertically descends 5-7 times in the pickling tank (2) during pickling.

7. The method for preparing the flame-retardant high-temperature-resistant alloy corrugated pipe as claimed in claim 5, wherein in the step S3, the pipe rotates and falls in the pickling tank (2) for 2-4 times during pickling.

8. The method for preparing the flame-retardant high-temperature-resistant alloy corrugated pipe as claimed in claim 1, wherein in the fifth step, after a finished corrugated pipe is obtained, a thermal stabilization treatment is performed.

9. The preparation method of the flame-retardant high-temperature-resistant alloy corrugated pipe as claimed in claim 8, wherein in the fifth step, the flame-retardant coating comprises the following raw materials in parts by weight: 40-50 parts of nano copper powder, 20-40 parts of industrial alcohol, 20-35 parts of magnesium aluminum alloy powder, 17-23 parts of ABS resin and 6-10 parts of heat-resistant modifier.

10. The flame-retardant high-temperature-resistant alloy corrugated pipe is characterized by being processed from any one of the right 1 to the right 9.

Technical Field

The invention relates to the technical field of metal corrugated pipes, in particular to a flame-retardant high-temperature-resistant alloy corrugated pipe and a preparation method thereof.

Background

The metal corrugated pipe is a pipe with a regular wave-like appearance, and is mainly used for non-concentric axial transmission with a small bending radius, or irregular turning, stretching or thermal deformation absorption of a pipeline, and the like.

Through retrieval, the Chinese patent discloses a manufacturing method of a high-temperature-resistant niobium alloy corrugated pipe component (publication number: CN109622720A), and the patent comprises preforming and intermediate secondary forming, wherein U-shaped forming mold sheets, limiting mold sheets and hydraulic forming media are adopted to obtain niobium alloy corrugated pipe preformed pieces; the final forming directly presses the U-shaped forming dies against each other to finally manufacture the niobium alloy corrugated pipe.

The existing alloy corrugated pipe is simple in preparation equipment and process during manufacturing, continuous operation cannot be performed during acid washing, automation during the acid washing process is poor, and the acid washing equipment is single in function.

Disclosure of Invention

The invention aims to provide a flame-retardant high-temperature-resistant alloy corrugated pipe and a preparation method thereof, and the flame-retardant high-temperature-resistant alloy corrugated pipe can be used for solving the following technical problems:

(1) how to improve the quality and efficiency of the alloy corrugated pipe in the pickling step;

(2) how to improve the pickling equipment so as to improve the functionality and the practicability of the pickling equipment;

(3) how to improve the flame retardance and the high temperature resistance of the alloy corrugated pipe, thereby prolonging the service life and the performance of the pipe under special operation environment.

The purpose of the invention can be realized by the following technical scheme:

a preparation method of a flame-retardant high-temperature-resistant alloy corrugated pipe comprises the following steps: the method comprises the following steps:

the method comprises the following steps: preparing a raw material alloy pipe, and pretreating the raw material alloy pipe to obtain an initial pipe;

step two: thinning and stretching the initial pipe to obtain a raw material pipe:

step three: performing a corrugation forming process on a raw material pipe to obtain an initial corrugated pipe;

step four: removing oil and oxide skin of the primary corrugated pipe, conveying the primary corrugated pipe to pickling equipment, pickling and cleaning to obtain a semi-finished corrugated pipe;

step five: and shaping the surface of the semi-finished corrugated pipe, and spraying a flame-retardant coating on the surface to obtain the finished corrugated pipe.

As a further scheme of the invention: the pickling equipment comprises a pickling tank, wherein a pipe conveying frame which is distributed in a staggered manner is installed on one side of the pickling tank, a pickling tank and a cleaning tank are sequentially arranged in the pickling tank, a plurality of scourers are installed in the cleaning tank, slide rails are fixedly connected to the two sides of the pickling tank, driving seats are installed on the upper sides of the two sets of slide rails, driving frames are fixedly connected to the upper sides of the two sets of driving seats, a first hydraulic rod is fixedly connected to the upper surface of each driving frame, the output end of the first hydraulic rod extends to the inside of each driving frame, a connecting frame is fixedly connected to the output end of the first hydraulic rod, and a driving support and a movable support are installed on the two sides of each connecting frame respectively;

and a pipe positioning shifter is arranged on one side of the pipe conveying frame facing the pickling tank and used for transferring pipes.

As a further scheme of the invention: the pipe conveying frame comprises a plurality of supporting columns, sliding frames are fixedly connected to the top ends of the supporting columns, a fixing frame is fixedly connected to the lower surface of one side, close to the pipe positioning mover, of each sliding frame, a second hydraulic rod is fixedly connected to the upper surface of each fixing frame, a blocking plate is fixedly connected to the output end of each second hydraulic rod, and each blocking plate is used for extending to the upper side of each sliding frame to shield the pipe;

an included angle of 15-30 degrees is arranged between the skid and the horizontal direction.

As a further scheme of the invention: the tubular product location shifter includes the fixed box that is connected with the tubular product carriage, the internally mounted of fixed box has the horizontal migration component, the output fixedly connected with vertical removal component of horizontal migration component, the output of vertical removal component extends to the outside of fixed box and fixedly connected with lifting frame.

As a further scheme of the invention: the lower surfaces of the two groups of driving seats are fixedly connected with supporting pulley frames, and the two groups of supporting pulley frames are in contact with the ground.

As a further scheme of the invention: the cleaning and shielding component comprises a first placing frame and a second placing frame which are respectively connected with two sides of a pickling tank, a covering plate is connected inside the first placing frame in a sliding mode, a screw rod driving structure is installed inside the first placing frame, one side of the covering plate is connected with the screw rod driving structure and used for horizontally moving, a sliding chute is formed in the covering plate, a side plate is fixedly connected to one side, close to the sliding chute, of the upper surface of the covering plate, a sliding plate is arranged on one side, facing the sliding chute, of the side plate, a plurality of reset springs are fixedly connected between the side plate and the sliding plate, a concave groove is formed in one side, facing the sliding chute, of the sliding plate, and a first inclined plane is formed in one end, facing the second placing frame, of the sliding plate;

the upper surface of the second placing frame is fixedly connected with an expansion block, one end, facing the sliding plate, of the expansion block is provided with a second inclined surface corresponding to the first inclined surface, and the second inclined surface is used for moving the first inclined surface.

As a further scheme of the invention: the drive support comprises a drive motor and a first air pump, the drive motor and the first air pump are all connected with the upper surface of the connecting frame in a fixed mode, the lower surface of the drive motor is fixedly connected with a fixed pipe, the fixed pipe extends to the lower side of the connecting frame, one side of the fixed pipe is rotatably connected with a first expansion support, and the air outlet end of the first air pump is communicated with the first expansion support.

As a further scheme of the invention: the movable support comprises a third hydraulic rod and a second air pump, the third hydraulic rod is fixedly connected with the upper surface of the connecting frame, the second air pump is connected with the upper surface of the connecting frame in a sliding mode, the output end of the third hydraulic rod is fixedly connected with a connecting plate, one side of the connecting plate is rotatably connected with a second expansion support, and the air outlet end of the second air pump is communicated with the second expansion support.

As a further scheme of the invention: the first expansion support and the second expansion support both comprise rotating boxes, two groups of rotating boxes are respectively rotatably connected with the fixed pipe and the connecting plate, an expansion body is arranged inside each rotating box, supporting rods extending to the outer side of each rotating box are mounted on the side surfaces of the two groups of expansion bodies, and one ends of the two groups of expansion bodies are fixedly connected with a middle through pipe;

and a middle through pipe in the first expansion support is meshed and connected with the output end of the driving motor through a synchronous belt, and one end of the middle through pipe is rotatably connected with a vent pipe, and the vent pipes are respectively communicated with a first air pump and a second air pump.

As a further scheme of the invention: the using method of the pickling equipment comprises the following steps:

s1: moving the pipe to one side of the pipe positioning mover through the pipe conveying frame;

s2: starting the pipe positioning shifter, and assembling the pipe with the driving support and the movable support in sequence;

s3: starting a driving seat, and moving the pipe into a pickling tank for pickling;

s4: starting the driving seat, and moving the pipe into the cleaning tank;

s5: and starting the cleaning shielding component, covering the cleaning tank by using the cleaning shielding component, and then starting the driving support to drive the pipe to rotate and clean in the cleaning tank.

As a further scheme of the invention: in the step S5, the rotating speed of the pipe is 60-85 r/min.

As a further scheme of the invention: the moving speed of the driving seat is 25-30 m/min.

As a further scheme of the invention: in the step S3, the pickling time is 30-100 min.

As a further scheme of the invention: in the step S3, the pipe vertically descends 5-7 times in the pickling tank during pickling.

As a further scheme of the invention: in the step S3, the pipe rotates and lifts 2-4 times in the pickling tank during pickling.

As a further scheme of the invention: and in the fifth step, after the finished corrugated pipe is obtained, performing thermal stabilization treatment.

As a further scheme of the invention: the flame-retardant coating comprises the following raw materials in parts by weight: 40-50 parts of nano copper powder, 20-40 parts of industrial alcohol, 20-35 parts of magnesium aluminum alloy powder, 17-23 parts of ABS resin and 6-10 parts of heat-resistant modifier.

The invention also discloses a flame-retardant high-temperature-resistant alloy corrugated pipe which is processed by any one of the technical schemes.

The invention has the beneficial effects that:

after the alloy corrugated pipe is processed, the flame-retardant coating is additionally arranged on the outer side of the alloy corrugated pipe, so that the flame-retardant and high-temperature-resistant capabilities of the alloy corrugated pipe can be improved;

in the processing technology of the alloy corrugated pipe, the pickling technology is carried out on the alloy corrugated pipe through the pickling equipment, compared with the prior art, a pipe conveying frame and a pickling tank in the pickling equipment are distributed in a staggered mode, a pipe positioning shifter is further installed in the pipe conveying frame, after the pipe conveying frame conveys the pipe into the pipe positioning shifter, the pipe can be directly conveyed between a driving support and a movable support through the staggered distribution of the pipe conveying frame and the pickling tank, then the movable support is started, and the pipe can be fixed between the driving support and the movable support;

meanwhile, a pickling tank and a cleaning tank are arranged in the pickling tank, a cleaning shielding component is arranged on the side surface of the cleaning tank and used for shielding the cleaning tank to prevent water from splashing when the pipe is cleaned, and a sliding groove and a concave groove are formed in the cleaning shielding component and used for accommodating a first hydraulic rod;

further, the driving support can drive the pipe to rotate during acid washing and cleaning, so that the quality and the efficiency of acid washing and cleaning are improved.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a process flow diagram of the present invention;

FIG. 2 is a side view of the pickling apparatus of the invention;

FIG. 3 is a top view of the pickling bath and cleaning shutter member of the present invention;

FIG. 4 is a cross-sectional view of the driving supporter and the movable supporter in the present invention;

FIG. 5 is an enlarged view of the structure of portion A of FIG. 4 in accordance with the present invention;

figure 6 is a cross-sectional view of the tube positioning mover of the present invention.

In the figure: 1. a pickling tank; 2. a pickling tank; 3. a cleaning tank; 4. a pipe conveying frame; 5. a pipe positioning shifter; 6. a slide rail; 7. a driving seat; 8. a driving frame; 9. a first hydraulic lever; 10. a connecting frame; 11. a drive support; 12. a movable support; 13. cleaning the shielding member; 41. a support pillar; 42. a fixed mount; 43. a second hydraulic rod; 44. a blocking plate; 71. supporting the pulley yoke; 131. a first placing rack; 132. a cover plate; 133. a chute; 134. a side plate; 135. a sliding plate; 136. a recessed groove; 137. a return spring; 138. a second rack; 139. an expansion block; 111. a drive motor; 112. a first air pump; 113. a fixed tube; 114. an expansion support; 115. a synchronous belt; 121. a third hydraulic lever; 122. a second air pump; 123. a connecting plate; 1141. rotating the cartridge; 1142. an expansion body; 1143. a middle through pipe; 1144. a breather pipe; 51. a fixing box; 52. a horizontally moving member; 53. a vertical moving member; 54. a lifting frame; 31. a flusher.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention is a method for manufacturing a flame retardant high temperature alloy corrugated pipe, comprising the following steps:

the method comprises the following steps: preparing a raw material alloy pipe, and pretreating the raw material alloy pipe to obtain an initial pipe;

step two: thinning and stretching the initial pipe to obtain a raw material pipe:

step three: performing a corrugation forming process on a raw material pipe to obtain an initial corrugated pipe;

step four: removing oil and oxide skin of the primary corrugated pipe, conveying the primary corrugated pipe to pickling equipment, pickling and cleaning to obtain a semi-finished corrugated pipe;

step five: shaping the surface of the semi-finished corrugated pipe, and spraying a flame-retardant coating on the surface, wherein the flame-retardant coating comprises the following raw materials in parts by weight: 44 parts of nano copper powder, 31 parts of industrial alcohol, 26 parts of magnesium-aluminum alloy powder, 19 parts of ABS resin and 8 parts of 4-7081 type heat-resistant modifier to obtain a finished corrugated pipe, and finally, carrying out heat stabilization treatment on the finished corrugated pipe.

The pickling equipment comprises a pickling tank 1, a pipe conveying frame 4 which is distributed in a staggered manner is installed on one side of the pickling tank 1, a pickling tank 2 and a cleaning tank 3 are sequentially arranged in the pickling tank 1, a plurality of scourers 31 are installed in the cleaning tank 3, sliding rails 6 are fixedly connected to two sides of the pickling tank 1, driving seats 7 are installed on the upper sides of the two groups of sliding rails 6, driving frames 8 are fixedly connected to the upper sides of the two groups of driving seats 7, a first hydraulic rod 9 is fixedly connected to the upper surface of each driving frame 8, the output end of each first hydraulic rod 9 extends into the driving frame 8, a connecting frame 10 is fixedly connected to the inside of each driving frame 8, and driving supports 11 and movable supports 12 are installed on two sides of the connecting frame 10 respectively;

and a pipe positioning shifter 5 is installed on one side, facing the pickling tank 1, of the pipe conveying frame 4, and the pipe positioning shifter 5 is used for transferring pipes.

The pipe conveying frame 4 comprises a plurality of supporting columns 41, the tops of the supporting columns 41 are fixedly connected with a sliding frame, the lower surface of one side, close to the pipe positioning mover 5, of the sliding frame is fixedly connected with a fixing frame 42, the upper surface of the fixing frame 42 is fixedly connected with a second hydraulic rod 43, the output end of the second hydraulic rod 43 is fixedly connected with a blocking plate 44, and the blocking plate 44 is used for extending to the upper side of the sliding frame to shield the pipe;

an included angle of 20 degrees is formed between the sliding frame and the horizontal direction, so that the pipe can roll conveniently.

The pipe positioning mover 5 comprises a fixed box 51 connected with the pipe conveying frame 4, a horizontal moving member 52 is mounted inside the fixed box 51, an output end of the horizontal moving member 52 is fixedly connected with a vertical moving member 53, and an output end of the vertical moving member 53 extends to the outer side of the fixed box 51 and is fixedly connected with a lifting frame 54.

The lower surfaces of the two sets of driving seats 7 are fixedly connected with supporting pulley frames 71, and the two sets of supporting pulley frames 71 are in contact with the ground to support the driving seats 7.

The cleaning and shielding component 13 comprises a first placing frame 131 and a second placing frame 138 which are connected with two sides of the pickling tank 1, a covering plate 132 is connected inside the first placing frame 131 in a sliding manner, a screw rod driving structure is installed inside the first placing frame 131, one side of the covering plate 132 is connected with the screw rod driving structure and used for horizontally moving, a sliding groove 133 is formed in the covering plate 132, a side plate 134 is fixedly connected to one side, close to the sliding groove 133, of the upper surface of the covering plate 132, a sliding plate 135 is arranged on one side, facing the sliding groove 133, of the side plate 134, a plurality of reset springs 137 are fixedly connected between the side plate 134 and the sliding plate 135, a concave groove 136 is formed in one side, facing the sliding groove 133, and a first inclined surface is formed in one end, facing the second placing frame 138, of the sliding plate 135;

the upper surface of the second rack 138 is fixedly connected with an expansion block 139, one end of the expansion block 139, which faces the sliding plate 135, is provided with a second inclined surface corresponding to the first inclined surface, and the second inclined surface is used for moving the first inclined surface.

Drive support 11 includes driving motor 111 and first air pump 112, and driving motor 111 and first air pump 112 all are connected with the upper surface fixed connection of link 10, and driving motor 111's lower fixed surface is connected with fixed pipe 113, and fixed pipe 113 extends to the downside of link 10, and one side of fixed pipe 113 rotates and is connected with inflation support 114 one, and the end of giving vent to anger of first air pump 112 is linked together with inflation support 114 one.

The movable support 12 comprises a third hydraulic rod 121 and a second air pump 122, the third hydraulic rod 121 is fixedly connected with the upper surface of the connecting frame 10, the second air pump 122 is slidably connected with the upper surface of the connecting frame 10, an output end of the third hydraulic rod 121 is fixedly connected with a connecting plate 123, one side of the connecting plate 123 is rotatably connected with a second expansion support 114, and an air outlet end of the second air pump 122 is communicated with the second expansion support 114.

The first expansion support 114 and the second expansion support 114 both comprise rotating boxes 1141, the two groups of rotating boxes 1141 are respectively rotatably connected with the fixed pipe 113 and the connecting plate 123, an expansion body 1142 is arranged inside the rotating box 1141, supporting rods extending to the outer side of the rotating box 1141 are respectively installed on the side surfaces of the two groups of expansion bodies 1142, and one end of each of the two groups of expansion bodies 1142 is fixedly connected with a middle through pipe 1143;

the middle through pipe 1143 of the first expansion support 114 is engaged with the output end of the driving motor 111 through the timing belt 115, and one end of each of the two groups of middle through pipes 1143 is rotatably connected with a ventilation pipe 1144, and the two groups of ventilation pipes 1144 are respectively communicated with the first air pump 112 and the second air pump 122.

The working principle of the invention is as follows:

moving the pipe to one side of the pipe positioning mover 5 through the pipe conveying frame 4, moving the pipe to a lifting frame 54 in the pipe positioning mover 5 through a sliding frame of the pipe conveying frame 4, starting the second hydraulic rod 43, lifting the blocking plate 44 into the sliding frame, and blocking the pipe;

starting a horizontal moving component 52 and a vertical moving component 53 in the pipe positioning mover 5, moving the pipe horizontally and vertically, assembling the pipe with the driving support 11 and the movable support 12 in sequence, moving one end of the pipe to the outer side of the expansion support 114 II when assembling the pipe, horizontally moving the movable support 12 and the lifting frame 54, sleeving the other end of the pipe on the outer side of the expansion support 114I, starting the first air pump 112 and the second air pump 122, inflating and expanding two groups of expansion bodies 1142 in the expansion support 114I and the expansion support 114 II, and driving the support rods to fix the pipe;

starting the driving seat 7, moving the pipe into the pickling tank 2 for pickling for 40min, vertically driving the pipe to move in the pickling tank 2 for vertical lifting 6 times during pickling, driving the pipe to leave the pickling solution every lifting, and supporting the pipe through the supporting pulley frame 71 when the driving seat 7 moves;

and starting the driving seat 7 again to move the pipe into the cleaning tank 3, wherein the moving speed of the driving seat 7 is 25 m/min.

Starting the cleaning shielding component 13, driving the covering plate 132 to horizontally move to the upper side of the cleaning tank 3 along the first placing frame 131 by the screw rod driving structure in the first placing frame 131, when moving, the first hydraulic rod 9 is located inside the sliding groove 133, and after the first inclined plane of the sliding plate 135 touches the second inclined plane of the expansion block 139, the sliding plate 135 covers the upper side of the sliding groove 133 through the stretching return spring 137, and the first hydraulic rod 9 is accommodated through the concave groove 136, then the cleaning shielding component 13 is used to cover the cleaning tank 3, and then the driving support 11 is started to drive the pipe to rotate and clean in the cleaning tank 3;

during cleaning, the driving motor 111 is started, and the synchronous belt 115 can be driven to rotate, so that the pipe is driven to rotate in the cleaning tank 3, the rotating speed is 65r/min, and the cleaning efficiency and quality are improved.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.