CN111644913A

CN111644913A - Hardware pipe inner wall polishing device and polishing method thereof

Info

Publication number: CN111644913A
Application number: CN202010459474.8A
Authority: CN
Inventors: 窦颍建
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2020-09-11

Abstract

The invention discloses a hardware pipe inner wall polishing device and a polishing method thereof, wherein the hardware pipe inner wall polishing device comprises a mounting plate, a polishing sleeve, a main shaft and a motor, the polishing sleeve is mounted on the left side of the mounting plate, the left end of a suction pipe is fixed on an annular plate, the annular plate is rotatably mounted in an annular groove in the right end face of the mounting plate, the right section of the suction pipe is communicated with the bottom end of an air supply box, and the bottom end of the air supply box is obliquely distributed towards the right side. The hardware pipe inner wall polishing device and the polishing method thereof can perform real-time rust removal operation on the inside of a horizontally distributed long-distance pipeline while polishing the inner wall of the pipe, and effectively avoid the problem of reduction of polishing efficiency caused by accumulation of rust fragments.

Description

Hardware pipe inner wall polishing device and polishing method thereof

Technical Field

The invention relates to the technical field of hardware processing, in particular to a hardware pipe inner wall polishing device and a polishing method thereof.

Background

Hardware pipe fitting constitutes and encircles airtight around for the metal, both ends seal or open pipeline structure, all have extensive application in a plurality of fields, under most application scenes, need the interior outer wall of hardware pipe fitting to keep certain smoothness or ensure rustless, consequently need use corresponding grinding device to polish the processing to the pipe fitting, the great pipe fitting of bore can be polished alone that the mode that wheel/roller or sandblast were polished goes on the inner wall and go out with polishing, but the following problem exists in the polishing device of the same kind of current when polishing little bore pipe fitting:

in the process of polishing, under the longer condition of pipe fitting, need the pipe fitting to keep the horizontality, ensure that its occupation space can not be too big, it is corresponding, at the in-process of polishing, rust spot or other impurity that the inner wall detached can't be by convenient discharge, lead to the rust spot piece to pile up inside the pipe fitting, influence grinding device's work efficiency, reduced the effect of polishing.

Disclosure of Invention

The invention aims to provide a hardware pipe inner wall polishing device and a polishing method thereof, and aims to solve the problems that in the polishing process in the background art, under the condition that a pipe is long, the pipe needs to be kept in a horizontal state, the occupied space of the pipe is not too large, correspondingly, rust spots or other impurities removed from the inner wall cannot be conveniently discharged in the polishing process, rust spot debris is accumulated in the pipe, the working efficiency of the polishing device is influenced, and the polishing effect is reduced.

In order to achieve the purpose, the invention provides the following technical scheme: a hardware pipe inner wall polishing device comprises a mounting plate, a polishing sleeve, a main shaft and a motor, wherein the polishing sleeve is mounted on the left side of the mounting plate, the main shaft is fixedly connected to the right side of the mounting plate, the motor is arranged above the right half section of the main shaft, an output shaft of the motor is connected with the main shaft through two first gears which are meshed with each other, a suction hole is formed in the left side surface of the mounting plate and surrounds the side of the polishing sleeve, the suction hole is communicated with a hollow structure inside the mounting plate, the hollow structure is communicated with the left end of a suction pipe at the same time, the left end of the suction pipe is fixed on an annular plate, the annular plate is rotatably mounted in an annular groove in the right end surface of the mounting plate, the right section of the suction pipe is communicated with the bottom end of an air supply box, the bottom end of the air supply box is obliquely distributed towards the, the mounting panel internally mounted has the trachea, and the tracheal right-hand member is linked together with the inflation inlet that sets up on the main shaft to tracheal left end is linked together with the cavity.

Preferably, a second gear is mounted on the vane shaft, the second gear is meshed with a second gear on the main shaft, and the diameter of the second gear on the vane shaft is smaller than that of the other second gear.

Preferably, the surrounding side wall of the polishing sleeve is of a double-layer structure, the surrounding side wall and the polishing sleeve are of elastic structures, the cavity is located between the double-layer structure, a polishing bulge is fixed on the outer surface of the polishing sleeve, and a driving column is arranged inside the polishing sleeve.

Preferably, the driving column comprises a mandrel, a magnetic vibration plate and a protection plate, the mandrel is horizontally fixed at the center of the left end of the mounting plate, and the magnetic vibration plate is located between the protection plate and the outer surface of the mandrel.

Preferably, the protection shield and the inner wall of the polishing sleeve are connected with each other through a first separation layer and a second separation layer, the first separation layer and the second separation layer are perpendicular to each other, and round balls are arranged in an inner space between the polishing sleeve and the driving column, wherein the polishing sleeve and the driving column are formed by staggered division of the first separation layer and the second separation layer.

Preferably, the spherical balls are made of magnetic materials, the inner space where the spherical balls are located and the magnetic vibration plates are distributed correspondingly, the magnetic vibration plates are distributed in a regular polygon shape or in an annular shape, and cables in the driving columns penetrate through the main shaft and are connected through the conductive slip ring.

Meanwhile, a grinding method of the hardware pipe inner wall grinding device is provided, and the grinding method comprises the following steps:

the method comprises the following steps: placing the polishing sleeve and the mounting plate in the pipeline, then inflating the air pipe through an inflation port until the surface of the polishing sleeve and a polishing bulge fixed on the surface are tightly attached to the inner wall of the pipe fitting, and starting the motor;

step two: when the whole body is electrified, the magnetic vibration plate can generate a corresponding magnetic field, the ball is made of a magnetic material, under the action of the magnetic field, the ball can be in a high-frequency and high-speed moving state, the polishing sleeve is knocked at a high frequency, and the knocked part can be rapidly expanded and expanded outwards at a high frequency, so that the polishing bulge which is not in contact with the inner wall of the corner of the pipe fitting originally and the polishing sleeve which is further expanded under the knocking action force can be fully attached to the corner, and the purpose of polishing without dead angles is achieved;

step three: when the main shaft is in a rotating state, two meshed second gears with different sizes can drive the fan blade shaft to be synchronously in a rotating state and have a faster rotating speed, air flow flowing in the direction shown by an arrow can be generated in the air supply box, the inner part of the mounting plate communicated with the left half section of the suction pipe is in a corresponding negative pressure state, correspondingly, rusty spot impurities generated in the polishing process can be sucked out through the suction pipe, and are discharged through the suction pipe, meanwhile, the impurities can be prevented from contacting with fan blades on the fan blade shaft in the high-speed moving process, and the purpose of rust removal is achieved.

Compared with the prior art, the invention has the beneficial effects that: this five metals pipe fitting inner wall grinding device and polishing method thereof, can be when the pipe fitting inner wall is polished, carry out real-time rust cleaning operation to the long distance pipeline inside of horizontal distribution, effectively avoid piling up the problem that the efficiency of polishing brought reduces because of the rust spot piece, simultaneously, this grinding device is through the innovative design to the structure of polishing, ensure that square or other special-shaped structure's pipe fitting corner can be fully polished, do not have the dead angle of polishing, it is very convenient to operate, very big improvement grinding device's application scope:

1. the polishing sleeve is matched with the polishing protrusions on the surface of the polishing sleeve, the inner wall of the pipe fitting can be polished during rotation, and when the polishing sleeve is matched with structures such as suction holes near the polishing structure, the rust fragments can be discharged in real time by utilizing the gaps which are inevitably formed between the expanded polishing sleeve and the inner wall of the pipe fitting while polishing operation is carried out, so that the accumulation of rust in the pipe fitting is effectively avoided, and the polishing efficiency is improved;

furthermore, the second gear and the fan blade shaft can utilize the rotation characteristic of the main shaft and the differential transmission between the large gear and the small gear to enable the fan blade shaft to rotate at high speed synchronously, and after corresponding air flow is generated, the suction hole is in a negative pressure state by utilizing the inclined structure at the bottom end of the air supply box and the design of the horizontally distributed suction pipes and the Venturi principle, so that the purposes of utilizing the rotation of the main shaft and providing power for discharging rusty spot impurities are achieved, and the energy is saved and the environment is protected;

2. use the cover of polishing of elastic construction, utilize its self high-speed rotation and the arch of polishing of surface evenly distributed, make it can closely laminate with the most surface of pipe fitting after aerifing the inflation, realize the high-efficient purpose of polishing of pipe fitting inner wall, simultaneously, use magnetism board and magnetism ball of shaking in the cover of polishing, utilize magnetism to shake produced magnetic field behind the board circular telegram, make the ball can be at the inner space high-frequency vibration of each partition, utilize the ball to the impact force of the cover of polishing, make the corresponding arch in surface of the cover of polishing and contact with the corner of special-shaped pipe fitting, thereby realize avoiding polishing the problem that the dead angle exists, need not the user and handle the turning region of special-shaped cross section pipe fittings such as triangle or square alone again.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic diagram of the right side view of the mounting plate of the present invention;

FIG. 3 is a schematic cross-sectional view of the gas supply box according to the present invention;

FIG. 4 is a left side view schematic diagram of the polishing sleeve of the present invention;

FIG. 5 is a schematic cross-sectional view of a polishing sleeve according to the present invention.

In the figure: 1. mounting a plate; 2. polishing the sleeve; 3. a main shaft; 4. a first gear; 5. an electric motor; 6. sucking holes; 7. a straw; 8. an annular plate; 9. a gas supply box; 10. a fan blade shaft; 11. a second gear; 12. an air tube; 13. an inflation inlet; 14. a cavity; 15. polishing the bulges; 16. a drive column; 17. a mandrel; 18. a protection plate; 19. a magnetic vibration plate; 20. a first separation layer; 21. a second separation layer; 22. and (4) a ball.

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. 1-5, the present invention provides a technical solution: a hardware pipe inner wall polishing device comprises a mounting plate 1, a polishing sleeve 2, a spindle 3, a first gear 4, a motor 5, a suction hole 6, a suction pipe 7, an annular plate 8, an air supply box 9, a fan blade shaft 10, a second gear 11, an air pipe 12, an air charging port 13, a cavity 14, a polishing bulge 15, a driving column 16, a spindle 17, a protection plate 18, a magnetic vibration plate 19, a first separation layer 20, a second separation layer 21 and a round ball 22, wherein the polishing sleeve 2 is mounted on the left side of the mounting plate 1, the spindle 3 is fixedly connected to the right side of the mounting plate 1, the motor 5 is arranged above the right half section of the spindle 3, an output shaft of the motor 5 is connected with the spindle 3 through the two first gears 4 which are meshed with each other, the suction hole 6 is formed in the left side surface of the mounting plate 1, the suction hole 6 is distributed on the side of the polishing sleeve 2 in a surrounding manner, and the suction, meanwhile, the hollow structure is communicated with the left end of the suction pipe 7, the left end of the suction pipe 7 is fixed on the annular plate 8, the annular plate 8 is rotatably installed in an annular groove in the right end face of the installation plate 1, the right section of the suction pipe 7 is communicated with the bottom end of the air supply box 9, the bottom end of the air supply box 9 is obliquely distributed towards the right side, a fan blade shaft 10 which is horizontally distributed is installed inside the air supply box, an air pipe 12 is installed inside the installation plate 1, the right end of the air pipe 12 is communicated with an inflation port 13 arranged on the main shaft 3, and the left end of the air pipe 12 is communicated with the cavity 14.

The fan blade shaft 10 is provided with a second gear 11, the second gear 11 is meshed with the second gear 11 on the main shaft 3, the diameter of the second gear 11 on the fan blade shaft 10 is smaller than that of the other second gear 11, when the main shaft 3 is in a rotating state, the two meshed second gears 11 with different sizes can drive the fan blade shaft 10 to be in a rotating state synchronously and rotate at a higher speed, at the moment, under the action of fan blades at the end of the fan blade shaft 10, airflow flowing in the direction shown by an arrow can be generated in the air supply box 9, and because the bottom end of the air supply box 9 is inclined towards the right side and communicated with the suction pipe 7, the left side of a communication point of the two is in a negative pressure state under the condition that the airflow flows at a high speed.

The surrounding side wall of the polishing sleeve 2 is of a double-layer structure, both are elastic structures, the cavity 14 is located between the double-layer structures, the outer surface of the polishing sleeve 2 is fixed with a polishing bulge 15, the inside of the polishing sleeve 2 is provided with a driving column 16, the polishing sleeve 2 and the mounting plate 1 are placed inside a pipeline, then, the air can be inflated into the air pipe 12 through the inflating opening 13, air enters the cavity 14 in the figure 1 through the air inlet pipe 12, the inner space of the cavity 14 is increased at the moment, the polishing sleeve 2 is extruded to expand outwards, and the surface of the polishing sleeve 2 and the polishing bulge 15 fixed on the surface are tightly attached to the inner wall of the pipe fitting.

The driving column 16 comprises a mandrel 17, a magnetic vibration plate 19 and a protection plate 18, the mandrel 17 is horizontally fixed at the center of the left end of the mounting plate 1, the magnetic vibration plate 19 is positioned between the protection plate 18 and the outer surface of the mandrel 17, the protection plate 18 and the inner wall of the polishing sleeve 2 are connected with each other through a first separation layer 20 and a second separation layer 21, the first separation layer 20 and the second separation layer 21 are arranged vertically, round balls 22 are arranged in an inner space between the polishing sleeve 2 and the driving column 16 formed by staggered division of the first separation layer and the second separation layer, the round balls 22 are made of magnetic materials, the inner space in which the round balls are arranged and the magnetic vibration plate 19 are correspondingly distributed, the magnetic vibration plates 19 are distributed in a regular polygon shape or in an annular shape, a cable in the driving column 16 penetrates through the spindle 3 and is connected through a conductive slip ring, when the whole device is electrified, the magnetic vibration plate 19 can generate a corresponding magnetic field, and, under the magnetic field effect, ball 22 self can be in the state of high frequency and high-speed removal, because ball 22 is located first separate layer 20, second separate layer 21, polish and overlap 2 and drive post 16 enclose into a plurality of spaces of cutting apart, consequently ball 22 can be under the magnetic field effect, the high frequency is strikeed and is polished cover 2, consequently, it is under this effect of strikeing to polish cover 2, by strikeing the corresponding quick expansion inflation of the outside high frequency of department can, consequently, originally not with the protruding 15 of polishing of pipe fitting corner inner wall contact, polish under the effort of strikeing cover 2 further inflation back, can fully laminate with the corner, at this moment, the high-speed rotation of the whole of cover 2 of polishing of deuterogamying, realize the purpose that no dead angle was polished.

Meanwhile, a polishing method of the hardware pipe inner wall polishing device is provided, and the polishing method comprises the following steps:

the method comprises the following steps: placing the polishing sleeve 2 and the mounting plate 1 in a pipeline, then inflating the air pipe 12 through an inflation inlet 13 until the surface of the polishing sleeve 2 and a polishing bulge 15 fixed on the surface are tightly attached to the inner wall of the pipe fitting, and starting the motor 5;

step two: when the whole body is electrified, the magnetic vibration plate 19 can generate a corresponding magnetic field, the ball 22 is made of a magnetic material, under the action of the magnetic field, the ball 22 can be in a high-frequency and high-speed moving state, the polishing sleeve 2 is knocked at a high frequency, and the knocked part can be rapidly expanded outwards at a high frequency, so that the polishing bulge 15 which is not in contact with the inner wall of the corner of the pipe fitting originally and the polishing sleeve 2 can be fully attached to the corner after being further expanded under the knocking action force, and the purpose of no polishing dead angle is achieved;

step three: when the main shaft 3 is in a rotating state, two meshed second gears 11 with different sizes can drive the fan blade shaft 10 to be in a rotating state synchronously, the rotating speed is faster, air flow flowing in the direction shown by an arrow can be generated in the air supply box 9, the inner part of the mounting plate 1 communicated with the left half section of the suction pipe 7 is in a corresponding negative pressure state, correspondingly, rusty spot impurities generated in the polishing process can be sucked out through the suction hole 6 and discharged through the suction pipe 7, meanwhile, the contact of the impurities with fan blades on the fan blade shaft 10 in the high-speed moving process can be avoided, and the purpose of rust removal is achieved.

The working principle is as follows: when the grinding operation is carried out, the grinding sleeve 2 and the mounting plate 1 are firstly placed in the pipeline, then the air pipe 12 is inflated through the inflating opening 13, air enters the cavity 14 in the figure 1 through the air inlet pipe 12, at the moment, the inner space of the cavity 14 is enlarged and extrudes the grinding sleeve 2 to expand outwards until the surface of the grinding sleeve 2 and the grinding bulge 15 fixed on the surface are tightly attached to the inner wall of the pipe fitting (the communication between the air pipe 12 and the cavity 14 is only one of structural means for driving the grinding sleeve 2 to expand by air flow, the air pipe 12 can be communicated with the inner space of the grinding sleeve 2 during device processing, the replacing means is common technology and is not described in detail), then the inflating opening 13 can be closed to enable the grinding sleeve 2 to be in an expanded state, then the motor 5 can be started, under the meshing transmission action of the two first gears 4, the main shaft 3 can rotate along with the output shaft of the motor 5, so that the main shaft 3 can drive the mounting plate 1 and the polishing sleeve 2 to synchronously rotate in the inner wall of the pipe fitting, and the purpose of polishing with high efficiency is achieved;

because the surface of the grinding sleeve 2 is provided with the grinding bulges 15, the grinding sleeve 2 is expanded to be attached to most of the inner wall of the pipeline immediately, a certain gap is formed between the surface of the grinding sleeve 2 and the inner wall of the pipeline under the blocking of the grinding bulges 15, rusty spot impurities removed from the inner wall in the grinding process can stay in the gap or near the grinding bulges 15, as shown in figure 3, when the main shaft 3 is in a rotating state, two meshed second gears 11 with different sizes can drive the fan blade shaft 10 to be synchronously in a rotating state and rotate at a higher speed, at the moment, under the action of the fan blades at the end of the fan blade shaft 10, airflow flowing in the direction shown by an arrow is generated in the air supply box 9, and because the bottom end of the air supply box 9 inclines towards the right side and is communicated with the suction pipe 7, under the condition that the airflow flows at a high speed, the left side of the communication point of the air supply, the higher the right side pressure is, the lower the left side pressure is, so that the inside of the mounting plate 1 communicated with the left half section of the suction pipe 7 is in a corresponding negative pressure state, and accordingly, rust impurities generated in the grinding process can be sucked out through the suction hole 6 and discharged through the suction pipe 7, and meanwhile, the impurities can be prevented from contacting fan blades on the fan blade shaft 10 in the high-speed moving process;

when the irregular pipe fittings with triangular or other regular polygons cross sections are polished, the polishing device is limited by the limitation of the material of the polishing sleeve 2, and the polishing device cannot be really and completely attached to the inner walls of the corners of the irregular pipe fittings, so that gaps which cannot be directly contacted with the polishing protrusions 15 are reserved between the surface of the polishing structure and the corners of the inner walls of the pipeline, as shown in fig. 4 and 5, when the whole device is electrified, a corresponding magnetic field is generated at the magnetic vibration plate 19, the spherical ball 22 is made of magnetic materials, under the action of the magnetic field, the spherical ball 22 is in a high-frequency and high-speed moving state, and because the spherical ball 22 is positioned in a plurality of partitioned spaces surrounded by the first partition layer 20, the second partition layer 21, the polishing sleeve 2 and the driving column 16, the spherical ball 22 can strike the polishing sleeve 2 at a high frequency under the action of the magnetic field, therefore, the struck part of the polishing sleeve 2 can correspondingly expand and expand outwards at a, therefore, originally, do not polish protruding 15, the cover 2 further inflation back of polishing under the effort of knocking with the contact of pipe fitting corner inner wall, can fully laminate with the corner, at this moment the holistic high-speed rotation of the cover 2 of polishing of deuterogamying realizes the purpose that no dead angle was polished.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a five metals pipe fitting inner wall grinding device, includes mounting panel (1), polishes cover (2), main shaft (3) and motor (5), its characterized in that: the left side of mounting panel (1) is installed and is polished cover (2), and the right side fixedly connected with main shaft (3) of mounting panel (1), the top of the right half section of main shaft (3) is provided with motor (5), and the output shaft of motor (5) links to each other with main shaft (3) through two intermeshing's first gear (4), the left side surface of mounting panel (1) has been seted up and has been inhaled hole (6), and inhale hole (6) and encircle the avris that distributes at cover (2) of polishing to inhale hole (6) and the inside hollow structure of mounting panel (1) and be linked together, this hollow structure and the left end of straw (7) communicate simultaneously, the left end of straw (7) is fixed on annular plate (8), annular plate (8) rotate and install in the annular groove of mounting panel (1) right-hand member face, and the right side section of straw (7) and the bottom of confession gas box (9) are linked together, the bottom of air supply box (9) is for the distribution of inclining to the right side, and its inside is installed fan blade axle (10) of horizontal distribution, the internally mounted of mounting panel (1) has trachea (12), and inflation inlet (13) that set up on the right-hand member of trachea (12) and main shaft (3) are linked together to the left end and cavity (14) of trachea (12) are linked together.

2. The hardware pipe fitting inner wall grinding device according to claim 1, wherein: the fan blade shaft (10) is provided with a second gear (11), the second gear (11) is meshed with the second gear (11) on the main shaft (3), and the diameter of the second gear (11) on the fan blade shaft (10) is smaller than that of the other second gear (11).

3. The hardware pipe fitting inner wall grinding device according to claim 1, wherein: the side wall that encircles of the cover (2) of polishing is bilayer structure, and both are elastic construction, and cavity (14) are located the position between the bilayer structure, and polish the outer fixed surface of cover (2) and have arch (15) of polishing to the inside of the cover (2) of polishing is provided with drive post (16).

4. The hardware pipe fitting inner wall grinding device according to claim 3, wherein: the driving column (16) comprises a mandrel (17), a magnetic vibration plate (19) and a protection plate (18), the mandrel (17) is horizontally fixed at the center of the left end of the mounting plate (1), and the magnetic vibration plate (19) is located between the protection plate (18) and the outer surface of the mandrel (17).

5. The hardware pipe fitting inner wall grinding device according to claim 4, wherein: protection shield (18) and polish and overlap (2) inner wall between through first separate layer (20) and second separate layer (21) interconnect, and first separate layer (20) and second separate layer (21) set up for mutually perpendicular, and both crisscross interior space between cutting apart the cover (2) of polishing that forms and drive post (16) is provided with ball (22).

6. The hardware pipe fitting inner wall grinding device according to claim 5, wherein: the round balls (22) are made of magnetic materials, the inner space where the round balls are located and the magnetic vibration plates (19) are distributed correspondingly, the magnetic vibration plates (19) are distributed in a regular polygon shape or in an annular shape, and cables in the driving column (16) penetrate through the main shaft (3) and are connected through the conductive slip ring.

7. A polishing method of a hardware pipe inner wall polishing device is characterized by comprising the following steps: the polishing method comprises the following steps:

the method comprises the following steps: placing the polishing sleeve (2) and the mounting plate (1) inside a pipeline, then inflating the air pipe (12) through an inflation inlet (13) until the surface of the polishing sleeve (2) and a polishing bulge (15) fixed on the surface are tightly attached to the inner wall of the pipe fitting, and starting the motor (5);

step two: when the whole machine is electrified, a magnetic vibration plate (19) can generate a corresponding magnetic field, the ball (22) is made of a magnetic material, under the action of the magnetic field, the ball (22) can be in a high-frequency and high-speed moving state, the polishing sleeve (2) is knocked at high frequency, and the knocked position can be rapidly expanded to the outer side at high frequency, so that the polishing bulge (15) which is not in contact with the inner wall of the corner of the pipe fitting originally and the polishing sleeve (2) can be fully attached to the corner after being further expanded under knocking acting force, and the purpose of polishing without dead angles is achieved;

step three: when main shaft (3) is in the rotating state, two engaged second gears (11) with different sizes can drive fan blade axle (10) and be in rotating state and rotational speed in step faster, can produce the air current that flows as the arrow shows direction in air feed box (9), be in corresponding negative pressure state with mounting panel (1) inside that straw (7) left half section is linked together, it is corresponding, rust spot impurity that the in-process of polishing produced can be via inhaling hole (6) department suction, and via straw (7) department discharge, can avoid impurity to move the contact of in-process and fan blade axle (10) upper fan blade at a high speed simultaneously, realize the rust cleaning purpose.