CN115816275B

CN115816275B - Impeller polishing equipment

Info

Publication number: CN115816275B
Application number: CN202310167087.0A
Authority: CN
Inventors: 高为则
Original assignee: Changsha Haoxin Industrial Equipment Co ltd
Current assignee: Changsha Haoxin Industrial Equipment Co ltd
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-06-02
Anticipated expiration: 2043-02-27
Also published as: CN115816275A

Abstract

The invention discloses impeller polishing equipment, which relates to the field of impeller polishing and solves the problems that impurities in polishing liquid are difficult to synchronously screen when the traditional impeller polishing equipment is used, the concentration of the polishing liquid can rise after the traditional impeller polishing equipment is continuously used for a long time, and the polishing effect is affected.

Description

Impeller polishing equipment

Technical Field

The invention relates to the technical field of impeller polishing, in particular to impeller polishing equipment.

Background

Impellers are the only components in vane-type fluid machines that transfer energy to a fluid, by which the mechanical energy of the prime mover is converted into kinetic and pressure energy of the fluid. The impeller transmits the energy of the prime motor to the liquid in the pump through the action of centrifugal force, so that the speed and the pressure of the liquid are increased, the liquid in the pump is driven to be discharged, and the liquid in the inlet pipeline is sucked. The impeller has a complex structure and is composed of a plurality of bent blades, and the blades are non-expandable twisted straight lines, so that certain difficulty exists in the traditional mechanical precision machining.

Patent CN213561885U discloses a high accuracy impeller polishing equipment, adopt the liquid ball-milling technique to polish the surface of impeller, stretch into the liquid internal rotation of mixing ball-milling granule with the impeller for the continuous friction of granule at the surface of impeller realizes the effect of polishing, but current polishing equipment often can the continuous multiunit impeller of polishing in order to promote the efficiency of polishing when using, because can produce a certain amount of granule and mix in the liquid after the impeller polishes, the particle resistance that leads to polishing more the impeller after in the liquid receives is bigger, the polishing degree is also bigger, the polishing degree of different batches of impellers has been influenced, especially the impeller surface to later stage polishing produces great wearing and tearing easily. To this end, we propose an impeller polishing apparatus.

Disclosure of Invention

The invention aims to provide impeller polishing equipment which is convenient for filtering and impurity removing of polishing liquid after each polishing and prevents the change of post-polishing strength, so as to solve the problems in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an impeller polishing equipment, includes base, slewing mechanism, screening mechanism, pushing mechanism and collection mechanism, fixedly connected with device section of thick bamboo on the base, be used for storing the polishing solution in the device section of thick bamboo, be equipped with multiunit grinding ball granule in the device section of thick bamboo, be equipped with the elevating dish in the device section of thick bamboo, slewing mechanism install in on the elevating dish, be used for fixing the impeller and driving the impeller and carry out the rotation polishing in the polishing solution of device section of thick bamboo, screening mechanism including install in screen cloth and the filter on the elevating dish, screening mechanism is used for driving the elevating dish goes up and down, and pass through the screen cloth leaks impurity to the elevating dish below when moving down, will be solved through the filter to the elevating dish top makes impurity continue to stay in the below, realizes impurity autosegregation, pushing mechanism include with the elevating dish that the device section of thick bamboo bottom rotates the connection, the even fixedly connected with multiunit pushing mechanism of moving plate's of side, pushing mechanism is used for cooperating when moving down and driving the elevating dish rotates, thereby makes the bottom will be carried out the filter plate and remove, thereby the filter is in the sealing position is in the back is in the sealed position of polishing plate is in the time when the sealed position is in the back of removing the filter is carried out to the opening when the polishing plate is in the sealed position of the change, and is in the sealed position is in the back and is guaranteed to be in the time when the sealed.

Preferably, the rotating mechanism comprises a mounting frame fixedly mounted on the lifting disc, a driving motor is fixedly connected to the mounting frame, a driving shaft is coaxially and fixedly connected to the output end of the driving motor, and a fixing nut used for fixing the impeller is arranged on the driving shaft, so that the impeller is conveniently fixed and rotated.

Preferably, the screening mechanism further comprises a plurality of groups of first check valves and second check valves which are arranged on the lifting disc, a plurality of groups of first communication holes and second communication holes are uniformly formed in the lifting disc, the first check valves and the screen mesh are fixedly arranged in the first communication holes, the second check valves and the filter plate are fixedly arranged in the second communication holes, the screen mesh is positioned on the upper side of the first check valves, the filter plate is positioned on the lower side of the second check valves, and lifting pieces which are used for driving the lifting disc to lift are arranged on the base, so that impurities can be screened, filtered and removed conveniently.

Preferably, the lifting piece comprises a guide block fixedly mounted on the lifting disc, a guide groove which is slidably connected with the guide block along the vertical direction is formed in the inner wall of the device cylinder, an electric telescopic rod is fixedly connected to the base, a rotating block is rotatably connected to the output end of the electric telescopic rod, the rotating block is coaxially and rotatably connected with the lifting disc, the output end of the electric telescopic rod penetrates through the rotating disc and is rotatably connected with the rotating disc, and the lifting disc is conveniently driven to lift.

Preferably, the pushing mechanism further comprises a sliding disc slidably connected with the rotating block in the vertical direction, a plurality of groups of sliding rods are uniformly and fixedly connected to the bottom end of the sliding disc, the sliding rods penetrate through the rotating block and are slidably connected with the rotating block in the vertical direction, a telescopic sleeve is fixedly connected to the bottom end of the sliding rod, the bottom end of the telescopic sleeve is fixedly connected with the upper end of the rotating disc, the sliding disc is provided with a butt joint part for butt joint with the driving shaft when the lifting disc moves downwards, so that the sliding disc can synchronously rotate, and the sliding disc is convenient for linkage to push the blades to rotate so as to push impurities to be discharged all around.

Preferably, the butt joint piece includes multiunit even fixed mounting in the first helical tooth piece of sliding tray upper end, fixation nut's bottom fixedly connected with fixed disk, the even fixedly connected with multiunit second helical tooth piece in bottom surface of fixed disk is convenient for dock with the drive shaft when the lifter plate moves down for the sliding tray carries out synchronous rotation.

Preferably, the collecting mechanism comprises a lifting ring arranged in the device cylinder, a storage groove is formed in the base, a box door is hinged to the base, a plurality of groups of communicating grooves used for communicating the side face of the bottom end of the device cylinder with the upper end of the storage groove are formed in the device cylinder, the device cylinder is internally provided with a device groove, the lifting ring is in sliding connection with the device groove along the vertical direction, and an opening and closing piece used for closing the first communicating hole and the bottom end of the second communicating hole and opening the communicating groove after the lifting disc moves downwards to a set position is arranged in the device groove, so that pushed impurities can be conveniently collected and stored.

Preferably, the opening and closing member comprises a first spring fixedly mounted at the bottom end of the lifting ring, the bottom end of the first spring is fixedly connected with the device groove, a plurality of groups of discharge grooves which can be communicated with the communication grooves are formed in the side surface of the lifting ring, the upper end of the lifting ring is fixedly connected with a pressing block, the upper end of the pressing block is in sliding connection with the bottom end of the guide groove, a sealing member for sealing the first communication hole and the second communication hole is arranged in the device cylinder, and the sealing and opening of the communication grooves are convenient for sealing the bottom ends of the first communication hole and the second communication hole after the lifting disk moves down to a set position.

Preferably, the sealing element comprises a fixing frame fixedly installed in the device cylinder, and a plurality of groups of sealing plugs which can be spliced with the first communication holes and the second communication holes are fixedly connected to the fixing frame, so that the first communication holes and the second communication holes are conveniently sealed.

Preferably, the device cylinder is fixedly connected with a liquid injection pipe for injecting liquid into the device cylinder to keep the liquid content of the device cylinder in a relatively stable state all the time, so that the liquid content in the device cylinder is kept fixed during each polishing.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the impeller polishing equipment provided by the invention, the impeller to be polished is fixed on the driving shaft through the fixing nut, the driving motor is started to drive the driving shaft to rotate, so that the impeller can rotate, the electric telescopic rod is started to shrink, the rotating block is driven to move downwards, the lifting disc is pulled to move downwards, the first one-way valve is used for controlling liquid to flow downwards unidirectionally, the second one-way valve is used for controlling liquid to flow upwards unidirectionally, polishing liquid below the impeller passes through the filtering of the filtering plate and then flows upwards to the upper part of the lifting disc through the second one-way valve, impurities are kept below and continuously extruded and compressed, when the lifting disc moves downwards to the bottom end of the guiding groove at the lowest part, the sealing plug is just plugged into the bottom ends of the first connecting hole and the second connecting hole, sealing is completed, at the moment, the upper part of the lifting disc and the device cylinder form a sealing space, the upper part of the lifting disc is injected into the device cylinder through the liquid injection pipe to a position with constant liquid level, and the driving motor is started to drive the driving shaft to enable the impeller to rotate, and the internal grinding ball particles are continuously rubbed with the surface of the impeller under stirring, so that the grinding and polishing effect is realized.

2. According to the impeller polishing equipment provided by the invention, when the lifting disc moves downwards to the bottom end position, the bottom end of the sliding rod is abutted to the upper end of the rotating disc, the sliding disc cannot move downwards continuously, at the moment, the sliding disc is jacked upwards for a certain distance to be attached to the downwards moved fixed disc, the first inclined tooth block is clamped with the second inclined tooth block, the driving shaft rotates to enable the second inclined tooth block to push the first inclined tooth block to rotate, the sliding disc and the sliding rod are driven to rotate together, the sliding rod drives the rotating disc to rotate through the telescopic tube, the pushing piece can rotate to push liquid at the bottom and impurities to surrounding communicating groove positions, meanwhile, when the guide block moves downwards to the bottommost end, the lower pressing block is pushed downwards by the guide block, so that the lifting ring moves downwards, the discharging groove is communicated with the communicating groove, the impurities can flow into the storage groove to be collected through the communicating groove and the discharging groove, and the box door can be cleaned after the box door is opened.

3. According to the impeller polishing equipment provided by the invention, when the electric telescopic rod pushes the rotating block to move upwards to drive the lifting disc to move upwards, the rotating disc releases the pushing of the bottom of the sliding rod, the sliding disc moves downwards into the rotating block due to gravity, the first helical tooth block and the second helical tooth block are released from being attached, meanwhile, the lifting disc moves upwards to release the splicing with the sealing plug, the upper liquid and impurities flow into the bottom space after passing through the screen mesh and the first one-way valve, the screen mesh is used for blocking the grinding ball particles above the lifting disc, so that finer impurities flow downwards to be separated, the lifting ring moves upwards to block the communicating groove under the pushing of the first spring, the bottom end of the device cylinder is sealed, the device ensures that the impurities in the device are filtered after each polishing, the same amount of liquid is filled, the polishing degree of each time is relatively uniform, and the use is more stable.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the present invention;

FIG. 3 is a schematic view of the structure of the collecting mechanism of the present invention;

FIG. 4 is an enlarged view of area A of FIG. 3;

FIG. 5 is a cross-sectional view of the overall structure of the present invention;

FIG. 6 is an enlarged view of area B of FIG. 5;

FIG. 7 is an enlarged view of region C of FIG. 5;

FIG. 8 is a schematic diagram of a pushing mechanism according to the present invention;

FIG. 9 is a schematic view of the seal structure of the present invention;

fig. 10 is a schematic view of the structure of the butt joint part according to the present invention.

In the figure: 1-a base; 2-a device cylinder; 3-grinding ball particles; 4-lifting disc; 5-a rotating mechanism; 6-a screening mechanism; 7-screening; 8-filtering plates; 9-a pushing mechanism; 10-rotating a disc; 11-pushing piece; 12-a collection mechanism; 13-mounting rack; 14-driving a motor; 15-a drive shaft; 16-fixing the nut; 17-a first one-way valve; 18-a second one-way valve; 19-a first communication hole; 20-a second communication hole; 21-lifting member; 22-a guide block; 23-a guide groove; 24-an electric telescopic rod; 25-rotating blocks; 26-a sliding tray; 27-a sliding rod; 28-telescoping tube; 29-a butt joint; 30-a first helical block; 31-a fixed disk; 32-a second helical block; 33-lifting rings; 34-a storage tank; 35-door; 36-a communicating groove; 37-device slot; 38-an opening and closing member; 39-a first spring; 40-discharging grooves; 41-pressing down the block; 42-a seal; 43-fixing frame; 44-sealing plug; 45-liquid injection pipe.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-10, the present invention provides a technical solution: the impeller polishing equipment comprises a base 1, a rotating mechanism 5, a screening mechanism 6, a pushing mechanism 9 and a collecting mechanism 12, wherein a device cylinder 2 is fixedly connected to the base 1, polishing liquid is stored in the device cylinder 2, a liquid injection pipe 45 for injecting liquid into the device cylinder 2 to keep the liquid content of the device cylinder 2 in a relatively stable state all the time is fixedly connected to the device cylinder 2, a plurality of groups of grinding ball particles 3 are arranged in the device cylinder 2, a lifting disc 4 is arranged in the device cylinder 2, the rotating mechanism 5 is arranged on the lifting disc 4 and is used for fixing an impeller and driving the impeller to rotate and polish in the polishing liquid of the device cylinder 2, the rotating mechanism 5 comprises a mounting frame 13 fixedly arranged on the lifting disc 4, a driving motor 14 is fixedly connected to the mounting frame 13, the model of the driving motor 14 is preferably YYHS-40, the output end of the driving motor 14 is coaxially and fixedly connected with a driving shaft 15, the drive shaft 15 is provided with a fixing nut 16 for fixing the impeller, the screening mechanism 6 comprises a screen 7 and a filter plate 8 which are arranged on the lifting disc 4, the screening mechanism 6 is used for driving the lifting disc 4 to lift and leak impurities to the lower part of the lifting disc 4 through the screen 7 when moving upwards, the solution is filtered to the upper part of the lifting disc 4 through the filter plate 8 when moving downwards, the impurities continue to stay below, the automatic separation of the impurities is realized, the pushing mechanism 9 comprises a rotating disc 10 rotationally connected with the bottom of the device cylinder 2, the side surface of the rotating disc 10 is uniformly and fixedly connected with a plurality of groups of pushing sheets 11, the pushing mechanism 9 is used for driving the rotating disc 10 to rotate in a matching way when the rotating mechanism 5 moves downwards, so that the pushing sheets 11 push the impurities separated from the bottom to the periphery, the collecting mechanism 12 is used for opening after the lifting disc 4 moves downwards to a set position, so that the impurities pushed to the periphery by the pushing sheets 11 are collected and stored, and the opening is closed when the lifting disk 4 moves upwards, so that the device cylinder 2 is ensured to be in a closed state.

The screening mechanism 6 further comprises a plurality of groups of first check valves 17 and second check valves 18 which are arranged on the lifting disc 4, a plurality of groups of first communication holes 19 and second communication holes 20 are uniformly formed in the lifting disc 4, the first check valves 17 and the screen 7 are fixedly arranged in the first communication holes 19, the second check valves 18 and the screen 8 are fixedly arranged in the second communication holes 20, the screen 7 is positioned on the upper side of the first check valves 17, the screen 8 is positioned on the lower side of the second check valves 18, and lifting pieces 21 for driving the lifting disc 4 to lift are arranged on the base 1.

The lifting piece 21 comprises a guide block 22 fixedly installed on the lifting disc 4, a guide groove 23 which is in sliding connection with the guide block 22 along the vertical direction is formed in the inner wall of the device cylinder 2, an electric telescopic rod 24 is fixedly connected to the base 1, the output end of the electric telescopic rod 24 is rotationally connected with a rotating block 25, the rotating block 25 is coaxially rotationally connected with the lifting disc 4, and the output end of the electric telescopic rod 24 penetrates through the rotating disc 10 and is rotationally connected with the rotating disc 10.

The pushing mechanism 9 further comprises a sliding disc 26 which is in sliding connection with the rotating block 25 along the vertical direction, a plurality of groups of sliding rods 27 are uniformly and fixedly connected to the bottom end of the sliding disc 26, the sliding rods 27 penetrate through the rotating block 25 and are in sliding connection with the rotating block 25 along the vertical direction, a telescopic sleeve 28 is fixedly connected to the bottom end of the sliding rod 27, the bottom end of the telescopic sleeve 28 is fixedly connected with the upper end of the rotating disc 10, a butt joint part 29 which is used for butt joint with the driving shaft 15 when the lifting disc 4 moves downwards and enables the sliding disc 26 to synchronously rotate is arranged on the sliding disc 26, the butt joint part 29 comprises a plurality of groups of first helical tooth blocks 30 which are uniformly and fixedly arranged at the upper end of the sliding disc 26, a fixed disc 31 is fixedly connected to the bottom end of the fixed nut 16, and a plurality of groups of second helical tooth blocks 32 are uniformly and fixedly connected to the bottom surface of the fixed disc 31.

The collecting mechanism 12 comprises a lifting ring 33 arranged in the device cylinder 2, a storage groove 34 is formed in the base 1, a box door 35 is hinged to the base 1, a plurality of groups of communicating grooves 36 used for communicating the side surface of the bottom end of the device cylinder 2 with the upper end of the storage groove 34 are formed in the device cylinder 2, a device groove 37 is formed in the device cylinder 2, the lifting ring 33 is in sliding connection with the device groove 37 along the vertical direction, and an opening and closing piece 38 used for closing the bottom ends of the first communicating hole 19 and the second communicating hole 20 and opening the communicating groove 36 after the lifting disc 4 moves downwards to a set position is arranged in the device groove 37.

The opening and closing piece 38 comprises a first spring 39 fixedly arranged at the bottom end of the lifting ring 33, the bottom end of the first spring 39 is fixedly connected with the device groove 37, a plurality of groups of discharging grooves 40 which can be communicated with the communication groove 36 are formed in the side face of the lifting ring 33, the upper end of the lifting ring 33 is fixedly connected with a lower pressing block 41, the upper end of the lower pressing block 41 is slidably connected with the bottom end of the guide groove 23, a sealing piece 42 for sealing the first communication hole 19 and the second communication hole 20 is arranged in the device cylinder 2, the sealing piece 42 comprises a fixing frame 43 fixedly arranged in the device cylinder 2, and a plurality of groups of sealing plugs 44 which can be spliced with the first communication hole 19 and the second communication hole 20 are fixedly connected to the fixing frame 43.

The impeller to be polished is fixed on the driving shaft 15 through the fixing nut 16, the driving motor 14 is started to drive the driving shaft 15 to rotate, the impeller can be made to rotate, meanwhile, the electric telescopic rod 24 is started to shrink, the rotating block 25 is driven to move downwards, the lifting disc 4 is pulled to move downwards, the guide block 22 moves downwards in the guide groove 23, the first one-way valve 17 is used for controlling liquid to flow downwards unidirectionally, the second one-way valve 18 is used for controlling liquid to flow upwards unidirectionally, polishing liquid below the impeller passes through the filtering plate 8 and then flows upwards to the upper side of the lifting disc 4 through the second one-way valve 18 through the second communication hole 20, impurities are kept below to be continuously extruded and compressed, when the lifting disc 4 moves downwards to the bottom end of the lowest guide groove 23, the sealing plug 44 is just plugged into the bottom ends of the first communication hole 19 and the second communication hole 20 to complete sealing, at the moment, the upper side of the lifting disc 4 and the device cylinder 2 form a sealing space, the liquid injection pipe 45 is used for controlling liquid level quantity to be constant, the driving motor 14 is started to drive the driving shaft 15 to enable the impeller to rotate, and the inside abrasive ball 3 to stir and polish the surface of the impeller continuously.

When the lifting disc 4 moves down to the bottom end position, the bottom end of the sliding rod 27 abuts against the upper end of the rotating disc 10, the sliding disc 26 cannot move down continuously, at this time, the sliding disc 26 is lifted up for a certain distance to be attached to the fixed disc 31 which moves down, the first helical tooth block 30 is clamped with the second helical tooth block 32, after that, the driving shaft 15 rotates to enable the second helical tooth block 32 to push the first helical tooth block 30 to rotate, the sliding disc 26 and the sliding rod 27 are driven to rotate together, the sliding rod 27 drives the rotating disc 10 to rotate through the telescopic sleeve 28, the pushing piece 11 rotates to push liquid and impurities at the bottom to the surrounding positions of the communicating grooves 36, the sliding disc 26 drives the rotating block 25 to rotate, the position of the lifting disc 4 cannot be influenced, and meanwhile when the guiding block 22 moves down to the bottommost end, the guiding block 22 pushes the lower pressing block 41 downwards, the lifting ring 33 moves down, the discharging groove 40 is communicated with the communicating groove 36, the impurities can flow into the storage groove 34 through the communicating grooves 36 and the communicating grooves 40 to be collected, and the cleaning box door can be cleaned after the box door is opened 35.

When the electric telescopic rod 24 pushes the rotating block 25 to move upwards to drive the lifting disk 4 to move upwards, the rotating disk 10 releases the pushing of the bottom of the sliding rod 27, the sliding disk 26 moves downwards into the rotating block 25 due to gravity, the attachment of the first helical tooth block 30 and the second helical tooth block 32 is released, the free space in the vertical direction between the first helical tooth block 30 and the second helical tooth block 32 is convenient for people to take down the fixing nut 16 to mount and replace the impeller, meanwhile, the lifting disk 4 moves upwards to release the plug connection with the sealing plug 44, liquid above the lifting disk and impurities flow into the bottom space through the screen 7 and the first one-way valve 17, the screen 7 is used for blocking the grinding ball particles 3 above the lifting disk 4, so that finer impurities flow to the lower part for separation, the lifting ring 33 moves upwards to realize the sealing of the bottom end of the device cylinder 2, the telescopic sleeve 28 is used for always keeping the connection between the telescopic sleeve 28 and the rotating disk 10 when the sliding rod 27 is lifted, the telescopic sleeve 28 can drive the rotating disk 10 to rotate when rotating, the polishing device guarantees the uniform and uniform liquid filling after each time, and uniform liquid filling is guaranteed.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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. An impeller polishing apparatus, comprising:

the polishing device comprises a base (1), wherein a device cylinder (2) is fixedly connected to the base (1), polishing liquid is stored in the device cylinder (2), a plurality of groups of grinding ball particles (3) are arranged in the device cylinder (2), and a lifting disc (4) is arranged in the device cylinder (2);

further comprises:

the rotating mechanism (5) is arranged on the lifting disc (4) and is used for fixing the impeller and driving the impeller to rotate and polish in the polishing solution of the device cylinder (2);

the screening mechanism (6), screening mechanism (6) including install in screen cloth (7) and filter (8) on lifting disc (4), screening mechanism (6) are used for driving lifting disc (4) goes up and down, and pass through screen cloth (7) leak impurity to lifting disc (4) below when moving down, with solution filtration through filter (8) to lifting disc (4) top for impurity continues to stay in the below, realizes impurity autosegregation, screening mechanism (6) still include multiunit install in first check valve (17) and second check valve (18) on lifting disc (4), evenly set up multiunit first connecting hole (19) and second connecting hole (20) on lifting disc (4), first check valve (17) with screen cloth (7) fixed mounting in first connecting hole (19), second check valve (18) with filter (8) fixed mounting in second connecting hole (20) for impurity continues to stay in the below, filter (8) are located lifting disc (4) are located one-way valve (17) is located lifting disc (1) is gone up and down;

the pushing mechanism (9), the pushing mechanism (9) comprises a rotating disc (10) rotationally connected with the bottom of the device cylinder (2), a plurality of groups of pushing sheets (11) are uniformly and fixedly connected to the side surface of the rotating disc (10), and the pushing mechanism (9) is used for driving the rotating disc (10) to rotate in a matched mode when the rotating mechanism (5) moves downwards, so that the pushing sheets (11) push impurities separated from the bottom to the periphery;

the collecting mechanism (12) is used for being opened after the lifting disc (4) moves downwards to a set position, so that impurities pushed to the periphery by the pushing piece (11) are collected and stored, and an opening is closed when the lifting disc (4) moves upwards, so that the device cylinder (2) is in a closed state.

2. An impeller polishing apparatus according to claim 1, characterized in that: the rotating mechanism (5) comprises a mounting frame (13) fixedly mounted on the lifting disc (4), a driving motor (14) is fixedly connected to the mounting frame (13), a driving shaft (15) is coaxially and fixedly connected to the output end of the driving motor (14), and a fixing nut (16) for fixing the impeller is arranged on the driving shaft (15).

3. An impeller polishing apparatus according to claim 2, characterized in that: lifting part (21) including fixed mounting in guide block (22) on lifting disc (4), set up with guide block (22) are along vertical direction sliding connection's guide way (23) the inner wall of device section of thick bamboo (2), fixedly connected with electric telescopic handle (24) on base (1), electric telescopic handle (24)'s output rotates and is connected with rotary block (25), rotary block (25) with lifting disc (4) coaxial rotation is connected, electric telescopic handle (24)'s output runs through rotary disc (10), and with rotary disc (10) rotation is connected.

4. An impeller polishing apparatus according to claim 3, characterized in that: the pushing mechanism (9) further comprises a sliding disc (26) which is connected with the rotating block (25) in a sliding mode along the vertical direction, a plurality of groups of sliding rods (27) are uniformly and fixedly connected to the bottom end of the sliding disc (26), the sliding rods (27) penetrate through the rotating block (25) and are connected with the rotating block (25) in a sliding mode along the vertical direction, a telescopic sleeve (28) is fixedly connected to the bottom end of the sliding rod (27), the bottom end of the telescopic sleeve (28) is fixedly connected with the upper end of the rotating disc (10), and a butt joint part (29) which is used for butt joint with the driving shaft (15) when the lifting disc (4) moves downwards is arranged on the sliding disc (26) and enables the sliding disc (26) to synchronously rotate.

5. An impeller polishing apparatus according to claim 4, characterized in that: the butt joint piece (29) comprises a plurality of groups of first helical tooth blocks (30) which are uniformly and fixedly arranged at the upper end of the sliding disc (26), a fixed disc (31) is fixedly connected with the bottom end of the fixing nut (16), and a plurality of groups of second helical tooth blocks (32) are uniformly and fixedly connected with the bottom surface of the fixed disc (31).

6. An impeller polishing apparatus according to claim 5, characterized in that: the collecting mechanism (12) comprises a lifting ring (33) arranged in the device cylinder (2), a storage groove (34) is formed in the base (1), a box door (35) is hinged to the base (1), a plurality of groups of communicating grooves (36) used for communicating the side face of the bottom end of the device cylinder (2) with the upper end of the storage groove (34) are formed in the device cylinder (2), a device groove (37) is formed in the device cylinder (2), the lifting ring (33) is in sliding connection with the device groove (37) along the vertical direction, and a shutter (38) used for closing the bottom ends of the first communicating holes (19) and the second communicating holes (20) and opening the communicating grooves (36) after the lifting disc (4) moves downwards to a set position is arranged in the device groove (37).

7. An impeller polishing apparatus according to claim 6, characterized in that: the opening and closing piece (38) comprises a first spring (39) fixedly mounted at the bottom end of the lifting ring (33), the bottom end of the first spring (39) is fixedly connected with the device groove (37), a plurality of groups of discharging grooves (40) which can be communicated with the communication grooves (36) are formed in the side face of the lifting ring (33), a pressing block (41) is fixedly connected to the upper end of the lifting ring (33), the upper end of the pressing block (41) is slidably connected with the bottom end of the guide groove (23), and a sealing piece (42) used for sealing the first communication hole (19) and the second communication hole (20) is arranged in the device cylinder (2).

8. An impeller polishing apparatus according to claim 7, characterized in that: the sealing element (42) comprises a fixing frame (43) fixedly arranged in the device cylinder (2), and a plurality of groups of sealing plugs (44) which can be spliced with the first communication holes (19) and the second communication holes (20) are fixedly connected to the fixing frame (43).

9. An impeller polishing apparatus according to claim 1, characterized in that: the device cylinder (2) is fixedly connected with a liquid injection pipe (45) which is used for injecting liquid into the device cylinder (2) to keep the liquid content of the device cylinder in a relatively stable state all the time.