CN110722326A - Production method based on closed centrifugal fan simulation test - Google Patents
Production method based on closed centrifugal fan simulation test Download PDFInfo
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- CN110722326A CN110722326A CN201911025493.3A CN201911025493A CN110722326A CN 110722326 A CN110722326 A CN 110722326A CN 201911025493 A CN201911025493 A CN 201911025493A CN 110722326 A CN110722326 A CN 110722326A
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- fixedly arranged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a production method based on closed centrifugal fan simulation test, which comprises the following steps of: processing the outer cylinder of the air outlet machine by utilizing an ion cutting machine, a three-core roller machine, a numerical control electric welding machine and an automatic spinning machine; processing a fan impeller: processing the blades and hub lamp parts by adopting a compression molding process, carrying out slag removal treatment on the fan blades by utilizing a centrifugal fan impeller slag removal device, and then manually removing rough edges of the blades; detecting an impeller: before detection, static balance testing is used for detecting and adjusting the impeller, then dynamic balancing machine is used for balance testing and adjusting the impeller, and scrapping treatment is carried out on the impeller which cannot be adjusted; and (4) inspecting a finished product: before warehousing, carrying out appearance detection, operation detection, vibration detection and noise detection on the impeller; overspeed simulation test: and (3) carrying out an overspeed test on the impeller by using an overspeed tester, wherein the running time is more than 10 minutes under the condition that the rated rotating speed is exceeded by 20%.
Description
Technical Field
The invention belongs to the field of fans, and particularly relates to a production method based on closed centrifugal fan simulation test.
Background
The centrifugal fan is a machine which relies on input mechanical energy to improve gas pressure and discharge gas, and is a driven fluid machine, ventilation and air induction of a boiler and an industrial furnace.
Disclosure of Invention
The invention provides a production method based on closed centrifugal fan simulation test, which can automatically remove slag from fan blades and overcomes the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a production method based on closed centrifugal fan simulation test comprises the following steps,
a. manufacturing a fan outer cylinder: processing the outer cylinder of the air outlet machine by utilizing an ion cutting machine, a three-core roller machine, a numerical control electric welding machine and an automatic spinning machine;
b. processing a fan impeller: processing the blades and hub lamp parts by adopting a compression molding process, carrying out slag removal treatment on the fan blades by utilizing a centrifugal fan impeller slag removal device, and then manually removing rough edges of the blades;
c. detecting an impeller: before detection, static balance testing is used for detecting and adjusting the impeller, then dynamic balancing machine is used for balance testing and adjusting the impeller, and scrapping treatment is carried out on the impeller which cannot be adjusted;
d. and (4) inspecting a finished product: before warehousing, carrying out appearance detection, operation detection, vibration detection and noise detection on the impeller;
e. overspeed simulation test: carrying out overspeed test on the impeller by using an overspeed testing machine, wherein the running time is more than 10 minutes under the condition that the rated rotating speed is exceeded by 20%;
the centrifugal fan impeller slag removing device in the step b comprises a base, a bearing box fixedly arranged on the upper end surface of the base, a round hole groove arranged in the bearing box, a main shaft rotatably arranged in the round hole groove, a first motor fixedly arranged on the rear end surface of the bearing box and connected with the main shaft, a bearing device arranged on the main shaft, a straight plate fixedly arranged on the front end surface of the base, a movable space arranged on the right end surface of the straight plate, an adjusting rodless cylinder fixedly arranged on the left end wall of the movable space and a scraping device arranged on the adjusting rodless cylinder; the bearing device comprises a transmission space arranged on the front end face of the main shaft, a second motor fixedly arranged on the rear end wall of the transmission space, a rotating shaft fixedly arranged at the output end of the second motor, a first gear fixedly arranged at the output end of the rotating shaft and a rotating shaft rotatably arranged on the front end face of the main shaft;
the method comprises the following steps of utilizing a centrifugal fan impeller slag removing device to remove slag from a centrifugal fan impeller, utilizing a navigation vehicle to lift and move a large impeller to a bearing device, starting the bearing device to center the large impeller when an assembly groove on the large impeller is not aligned with a main shaft on the bearing device and is blocked and cannot enter, so that the large impeller can enter, when the large impeller is assembled on the bearing device, adjusting a rodless cylinder to start and drive a scraping device to move to the front side of a blade, and removing the slag on the blade by utilizing the scraping device.
The operation of artifical deburring of getting rid of the blade is for placing the blade on the main shaft of bearing box, then the manual work utilizes the unhairing limit machine to go on unhairing limit.
The operation of the dynamic balance test is to drive the impeller to rotate by using the motor, then add corresponding unbalance values to the positions where the unbalance amount is detected, so as to reach the preset qualified requirement, and finish the workpiece balance test correction processing.
The operation of the static balance test is to assemble a balance core shaft with a key and an impeller, place the impeller assembled with the core shaft on a balance frame, measure the end surface of two hubs of the impeller by a tape measure to ensure that the distance between the two parallel guide rails is equal, ensure that the impeller rolls gently towards one direction, and naturally stops, mark the lowest point, then ensure that the impeller rolls in the opposite direction, mark the lowest point, repeat the operation for 3 to 4 times, take the average position of each mark, namely the position of the impeller without the balance weight, add a certain amount of oil sludge at the lightest position of the upper part for balancing weight, repeat the operation, adjust the position and the amount of the oil sludge until the impeller is placed on a test frame to roll freely, and achieve static balance when the impeller can stay at any position.
The scraping device comprises two movable hydraulic cylinders fixedly arranged at the output end of the adjusting rodless cylinder, a matched straight plate fixedly arranged on the right end face of the two movable cylinders, a rodless cylinder fixedly arranged on the right end face of the matched straight plate, a first movable plate fixedly arranged at the output end of the rodless cylinder, two second movable plates fixedly arranged on the upper side and the lower side of the rear end face of the first movable plate respectively, a flat plate fixedly arranged on the right end face of the matched straight plate, a ventilation space arranged in the flat plate, a hollow groove arranged on the rear end wall of the ventilation space, a pushing position movable block arranged in the hollow groove in a back-and-forth movement mode, an inclined block fixedly arranged on the rear end face of the pushing position movable block, and two turning cutter assemblies respectively arranged on the two second movable plates;
the egg shell breaking detection method comprises the following steps of utilizing a detection device to break eggs, utilizing a scraping device to scrape slag on blades as follows, placing the blades on a bearing device, adjusting a rodless cylinder to adjust the front position and the rear position of the scraping device, moving two movable hydraulic cylinders to drive the blades to move rightwards, pushing an inclined block to move forwards by the blades, increasing air pressure in a ventilation space, and driving two turning knife assemblies to turn over to contact with the blades to remove the slag on the blades.
The turning tool assembly at the upper side comprises a first supporting plate fixedly arranged on the upper end surface of the second moving plate, two transmission holes respectively arranged at the left side and the right side in the first supporting plate, two matched transmission shafts respectively rotatably arranged in the transmission holes, two rotating gears respectively fixedly arranged on the outer surfaces of the two matched transmission shafts, a ventilation shell fixedly arranged on the upper end surface of the second moving plate, an air pressure space arranged on the upper end surface of the ventilation shell, a telescopic rod movably arranged in the air pressure space up and down, a communication hose communicated with the air pressure space and the ventilation space, and two turning parts respectively arranged at the left side and the right side of the upper end surface of the second moving plate, wherein the two rotating gears are respectively positioned on the two transmission holes at the left side and the right side;
let the turning tool subassembly can carry out the step of contact with the blade as follows, atmospheric pressure increase in the space of ventilating to make the atmospheric pressure increase in the atmospheric pressure space through the intercommunication hose, promote the upset of right side piece and contact with the blade downwards, the upset piece on right side drives the rotary gear rotation on right side simultaneously, the rotary gear on right side drives left rotary gear rotation, and left rotary gear drives left upset piece rotation.
In summary, the invention has the following advantages: the method is simple to use, and can automatically remove the slag of the fan blade, so that the working efficiency is high, and the labor cost is low.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a partial enlarged view of FIG. 1 at B;
FIG. 4 is a top view of the present invention;
FIG. 5 is a cross-sectional perspective view at C-C of FIG. 4;
FIG. 6 is an enlarged view of a portion of FIG. 5 at D;
FIG. 7 is an enlarged view of a portion E of FIG. 6;
FIG. 8 is a cross-sectional perspective view at F-F of FIG. 4;
FIG. 9 is an enlarged view of a portion of FIG. 8 at G;
FIG. 10 is an enlarged view of a portion of FIG. 8 at H;
FIG. 11 is a front view of the present invention;
FIG. 12 is a cross-sectional perspective view taken at I-I of FIG. 11;
fig. 13 is a schematic structural view of a machined impeller.
Detailed Description
In order to achieve the purpose, the invention adopts the following technical scheme: a production method based on closed centrifugal fan simulation test comprises the following steps,
a. manufacturing a fan outer cylinder: processing the outer cylinder of the air outlet machine by utilizing an ion cutting machine, a three-core roller machine, a numerical control electric welding machine and an automatic spinning machine;
b. processing a fan impeller: processing the blades and hub lamp parts by adopting a compression molding process, carrying out slag removal treatment on the fan blades by utilizing a centrifugal fan impeller slag removal device, and then manually removing rough edges of the blades;
c. detecting an impeller: before detection, static balance testing is used for detecting and adjusting the impeller, then dynamic balancing machine is used for balance testing and adjusting the impeller, and scrapping treatment is carried out on the impeller which cannot be adjusted;
d. and (4) inspecting a finished product: before warehousing, carrying out appearance detection, operation detection, vibration detection and noise detection on the impeller;
overspeed simulation test: and (3) carrying out an overspeed test on the impeller by using an overspeed tester, wherein the running time is more than 10 minutes under the condition that the rated rotating speed is exceeded by 20%.
The operation of artifical deburring of getting rid of the blade is for placing the blade on the main shaft of bearing box, then the manual work utilizes the unhairing limit machine to go on unhairing limit.
The operation of the dynamic balance test is to drive the impeller to rotate by using the motor, then add corresponding unbalance values to the positions where the unbalance amount is detected, so as to reach the preset qualified requirement, and finish the workpiece balance test correction processing.
The operation of the static balance test is to assemble a balance core shaft with a key and an impeller, place the impeller assembled with the core shaft on a balance frame, measure the end surface of two hubs of the impeller by a tape measure to ensure that the distance between the two parallel guide rails is equal, ensure that the impeller rolls gently towards one direction, and naturally stops, mark the lowest point, then ensure that the impeller rolls in the opposite direction, mark the lowest point, repeat the operation for 3 to 4 times, take the average position of each mark, namely the position of the impeller without the balance weight, add a certain amount of oil sludge at the lightest position of the upper part for balancing weight, repeat the operation, adjust the position and the amount of the oil sludge until the impeller is placed on a test frame to roll freely, and achieve static balance when the impeller can stay at any position.
As shown in fig. 1-13, the slag removing device for the centrifugal fan impeller in step b includes a base 1, a bearing box 2 fixedly disposed on the upper end surface of the base 1, a circular hole groove disposed in the bearing box 2, a main shaft 1 rotatably disposed in the circular hole groove, a first motor fixedly disposed on the rear end surface of the bearing box 2 and connected to the main shaft 1, a bearing device disposed on the main shaft 1, a straight plate 3 fixedly disposed on the front end surface of the base 1, a movable space disposed on the right end surface of the straight plate 3, an adjusting rodless cylinder fixedly disposed on the left end wall of the movable space, and a scraping device disposed on the adjusting rodless cylinder.
The bearing device comprises a transmission space arranged on the front end surface of the main shaft 1, a second motor fixedly arranged on the rear end wall of the transmission space, a rotating shaft 4 fixedly arranged on the output end of the second motor, a first gear 5 fixedly arranged on the output end of the rotating shaft 4, a rotating shaft 6 rotatably arranged on the front end surface of the main shaft 1, a first external thread arranged on the outer surface of the rotating shaft 6, a sleeve sleeved on the outer surface of the rotating shaft 6, an external gear ring 8 fixedly arranged on the outer surface of the sleeve, a first internal thread arranged on the inner wall of the sleeve and connected with the first external thread, a conical block 9 fixedly arranged on the front end of the sleeve and sleeved on the front end of the rotating shaft 6, a fixed shaft 10 fixedly arranged on the front end of the rotating shaft 6, four trapezoidal grooves circumferentially arranged on the rear end surface of the fixed shaft 10, a moving block 11 vertically movably arranged on the rear side of the trapezoidal grooves, a trapezoidal block fixedly arranged on the, Three rotating shafts fixedly arranged on the front end face of the main shaft 1 in the circumferential direction respectively, second external threads fixedly arranged on the outer surface of the rotating shafts, a matching sleeve 12 sleeved on the outer surface of the second external threads, second internal threads arranged on the inner wall of the matching sleeve 12 and matched with the second external threads, a matching external gear ring fixedly arranged on the outer surface of the matching sleeve 12, a circular ring disc 13 fixedly arranged on the rear end face of the matching sleeve 12, a plurality of ball grooves arranged on the front end face of the circular ring disc 13, balls 14 freely rotatably arranged in the ball grooves, a supporting plate 15 fixedly arranged on the front end face of the main shaft 1, three cylindrical holes circumferentially arranged on the front end face of the supporting plate 15, a plurality of rectangular grooves circumferentially arranged on the outer surface of the fixed shaft 10 respectively, a rectangular block 404 movably arranged in the rectangular grooves in the front and back directions, and a tension spring fixedly arranged between the rear end of the rectangular block 404 and the side wall of the rectangular groove, A limit rectangular groove arranged on the front end face of the fixed shaft 10, a matching groove arranged at the bottom of the rectangular groove and communicated with the limit rectangular groove, a rotating shaft rotationally arranged between two sides of the matching groove, a rotating plate 16 fixedly arranged on the outer surface of the rotating shaft, a movable rectangular block 405 arranged in the limit rectangular groove in a back-and-forth moving way, a movable conical block 17 fixedly arranged at the front end of the movable rectangular block 405, a rectangular shell 18 fixedly arranged on the front end face of the fixed shaft 10, a rectangular space arranged in the rectangular shell, four communicating grooves respectively arranged on four side walls of the rectangular space, an articulated shaft rotationally arranged on two side walls of the communicating groove, a butt door 19 fixedly arranged on the outer surface of the articulated shaft, three straight rods 20 fixedly arranged on the end face of the butt door 19 close to one end face of the movable conical block 17, and steel balls 21 fixedly arranged at the joints of the three straight rods 20, wherein the three, the end face of one end, close to the rotating shaft 6, of the rear end of the moving block 11 is provided with an inclined surface, the number of the moving blocks 11 is the same as that of the trapezoidal grooves, and the number of the circular ring discs is the same as that of the main shafts; when the large impeller is driven by the navigation vehicle to move rightwards and is sleeved on the main shaft, and when the large impeller cannot be sleeved on the main shaft due to too much deviation of the axis of the large impeller and the axis of the main shaft, the large impeller pushes 404 the large impeller to move rightwards, the large impeller drives 16 to turn over, and the large impeller 16 pushes the inner wall of the assembly hole of the large impeller to move from the upper direction, the lower direction, the left direction and the right direction, so that the axis of the large impeller and the axis of the main shaft are approximately overlapped, the assembly hole on the large impeller can be conveniently penetrated to the outer surface of the rotating shaft; the second motor is started to drive the second motor 5 to rotate, the second motor 5 drives the second motor 8 to rotate, the second motor 8 drives the sleeve to rotate, the sleeve moves forwards under the meshing of the internal threads and the external threads, and the sleeve drives the four moving blocks 11 to move towards the direction far away from the rotating shaft 6, so that the four moving blocks 11 can be tightly attached to the inner wall of the assembly hole of the large-sized impeller, and the impellers with different sizes can be machined; meanwhile, the ring disc 8 drives the ring disc 12 to rotate, and the ring disc 12 moves forwards through the meshing of the internal threads and the external threads, so that the front end face of the ring disc 13 can be in close contact with the rear end face of the sleeve, the bearing pressure given by the large impeller to the four moving blocks 11 can be dispersed to the three ring discs, the damage caused by the overlarge pressure on the first external threads can be avoided, and the service life of the equipment is prolonged; the friction generated by the close contact of the rear end face of the sleeve and the front end face of the circular ring disc can be reduced through the arrangement of the balls, so that the problem that the equipment is easy to damage due to the excessive friction is avoided; the matching sleeves 12 and 8 are in close contact, so that the function of supporting the rotating shaft 6 can be achieved, and the rotating shaft 6 is prevented from being broken due to overlarge stress; the three rotating shafts can be connected through the supporting plate 15, so that the gravity of the impeller can be dispersed to the three rotating shafts, the rotating shafts are prevented from being damaged, and the equipment is more practical.
The scraping device comprises two movable hydraulic cylinders 22 fixedly arranged at the output end of the adjusting rodless cylinder, a matching straight plate 23 fixedly arranged on the right end face of the two movable cylinders 22, a rodless cylinder 24 fixedly arranged on the right end face of the matching straight plate 23, a first movable plate 25 fixedly arranged at the output end of the rodless cylinder 24, two second movable plates 26 fixedly arranged on the upper side and the lower side of the rear end face of the first movable plate 25 respectively, a flat plate 27 fixedly arranged on the right end face of the matching straight plate 23, a ventilation space arranged in the flat plate 27, a hollow groove arranged on the rear end wall of the ventilation space, a pushing position moving block arranged in the hollow groove in a back-and-forth movement mode, an inclined block 29 fixedly arranged on the rear end face of the pushing position moving block, and two cutter overturning assemblies arranged on the two second movable plates 26 respectively; the effect of scraping the slag on the blade by using the scraping device is as follows, the blade is placed on the bearing device, the rodless cylinder is adjusted to adjust the front and back position of the scraping device, the two moving hydraulic cylinders 22 move to drive the cylinder 23 to move rightwards, the blade pushes the inclined block 29 to move forwards, so that the air pressure in the ventilation space is increased, and the two turning knife assemblies are driven to turn over to contact with the blade to remove the slag on the blade; through the setting of scraping device, thereby can need not measure the thickness of blade in advance and adjust the distance between two blades, can directly utilize scraping device to remove the slag to the blade and handle to it is more simple and convenient to make the operation, improves work efficiency.
The turning tool assembly at the upper side comprises a first supporting plate 30 fixedly arranged on the upper end surface of the second moving plate 26, two transmission holes respectively arranged at the left side and the right side in the first supporting plate 30, two matched transmission shafts respectively rotatably arranged in the transmission holes, two rotating gears 31 respectively fixedly arranged on the outer surfaces of the two matched transmission shafts, a ventilation shell 32 fixedly arranged on the upper end surface of the second moving plate 26, an air pressure space arranged on the upper end surface of the ventilation shell 32, an expansion link movably arranged in the air pressure space in an up-and-down mode, a communication hose 34 communicated with the air pressure space and the ventilation space, and two turning parts respectively arranged at the left side and the right side of the upper end surface of the second moving plate 26, wherein the two rotating gears 31 are respectively positioned on the two transmission holes at the left side; let the turning tool subassembly can carry out the step as follows that contacts with the blade, atmospheric pressure in the space of ventilating increases to make the atmospheric pressure increase in the atmospheric pressure space through communicating hose 34, promote the upset of right side piece and contact downwards, the upset piece on right side drives the rotary gear 31 rotation on right side simultaneously, the rotary gear 31 rotation on right side drives left rotary gear 31 rotation, left rotary gear 31 drives left upset piece rotation.
The right turning part comprises a second support plate 35 fixedly arranged on the right side of the upper end face of the second moving plate 26, a straight rotating shaft 36 rotating on the upper end of the second support plate 35, a rotating block 37 fixedly arranged at the front end of the straight rotating shaft 36, a matching outer gear ring fixedly arranged on the outer surface of the rotating block 37, a third support plate 39 fixedly arranged on the straight rotating shaft 36, a blade placing groove arranged on the right end face of the third support plate 39, a trapezoidal groove arranged on the left end wall of the blade placing groove, a sliding plate capable of being arranged in the trapezoidal groove in a front-back moving mode, a trapezoidal block fixedly arranged on the left end face of the sliding plate and positioned in the trapezoidal groove, a reset spring fixedly arranged on the front end wall of the trapezoidal groove and the front end of the trapezoidal block, a plurality of blades 43 fixedly arranged on the right end face of the sliding plate, and an arc plate fixedly arranged on; the air pressure in the air pressure space is increased, the third supporting plate 39 is pushed to turn downwards to be in contact with the blades, meanwhile, the third supporting plate 39 drives the third supporting plate 37 to rotate, the third supporting plate 37 drives the right side 31 to rotate, the right side 31 drives the left side 31 to rotate, the left side 31 drives the blades 43 on the left side turning piece to turn downwards to be attached to the upper end faces of the blades, and the two blades 43 on the two turning pieces move leftwards and rightwards through the left and right movement of the hydraulic cylinder 22 to scrape the slag on the blades; the front end surface of the impeller is a conical surface, so that the arc plate can be pushed to move forwards when passing through the front end surface of the impeller, and the problem that the blade cannot be cleaned continuously when being clamped due to the conical surface of the front end of the impeller when slag is scraped can be avoided; the upper turning tool assembly and the lower turning tool assembly have the same working principle and can scrape slag on the lower end surface of the blade; the operation track of the blade for scraping the slag on the upper end surface and the lower end surface of the blade is that the blade is moved to the rearmost end of the blade to move rightwards, when the blade is moved to the tail end, the blade is moved forwards through the rodless cylinder, one end of the blade is rectangular to move leftwards, and when the blade is moved to the tail end of the left end, the blade is moved backwards and sequentially to and fro, so that the slag on the upper end surface and the lower end surface of the blade can be cleaned; when the slag is removed, the blade can be driven by the hydraulic cylinder to continuously shovel back and forth, so that the slag can be shoveled.
A through hole is formed in the left end of a third supporting plate 39 on the right turning piece, a through shaft is rotatably arranged in the through hole, two rotating plates 40 are fixedly arranged on the front side and the rear side of the through shaft respectively, a turning plate 41 is fixedly arranged at the left end of each rotating plate 40, two matching holes are formed in the front end face and the rear end face of the third supporting plate 39 respectively, a matching conical block is movably arranged in each matching hole, a telescopic spring is fixedly arranged between each matching conical block and the bottom of each matching hole, and two conical holes are formed in the end faces of the opposite ends of the two rotating plates 40 respectively; the blade is pushed to turn over to be close to the upper end face of the blade by air pressure by matching the conical block and the conical hole, the blade is subjected to resistance, the conical block and the conical hole can be separated from each other, the turning plate 41 is turned over upwards, and the blade is prevented from being broken due to the fact that a large downward pressure is still applied to the blade when the blade touches the blade; the blades are arranged in a plurality of the blades, so that the phenomenon that when one large blade is arranged, stress is excessively concentrated when slag is scraped to generate blade deformation, and therefore the slag on the blade cannot be sufficiently removed can be avoided.
The working principle is as follows: the method comprises the following steps of utilizing a centrifugal fan impeller slag removing device to remove slag from a centrifugal fan impeller, utilizing a navigation vehicle to lift and move a large impeller to a bearing device, starting the bearing device to center the large impeller when an assembly groove on the large impeller is not aligned with a main shaft on the bearing device and is blocked and cannot enter, so that the large impeller can enter, and when the large impeller is assembled on the bearing device, adjusting a rodless cylinder to start and drive a scraping device to move to the front side of a blade, so that the slag on the blade can be removed by the scraping device.
Claims (6)
1. A production method based on closed centrifugal fan simulation test is characterized by comprising the following steps,
a. manufacturing a fan outer cylinder: processing the outer cylinder of the air outlet machine by utilizing an ion cutting machine, a three-core roller machine, a numerical control electric welding machine and an automatic spinning machine;
b. processing a fan impeller: processing the blades and hub lamp parts by adopting a compression molding process, carrying out slag removal treatment on the fan blades by utilizing a centrifugal fan impeller slag removal device, and then manually removing rough edges of the blades;
c. detecting an impeller: before detection, a static balance testing impeller is used for detection and adjustment, then a dynamic balancing machine is used for balance testing and adjustment of the impeller, and scrapping treatment on the impeller which cannot be adjusted is carried out;
d. and (4) inspecting a finished product: before warehousing, carrying out appearance detection, operation detection, vibration detection and noise detection on the impeller;
e. overspeed simulation test: carrying out overspeed test on the impeller by using an overspeed testing machine, wherein the running time is more than 10 minutes under the condition that the rated rotating speed is exceeded by 20%;
the centrifugal fan impeller slag removing equipment in the step b comprises a base (1), a bearing box (2) fixedly arranged on the upper end surface of the base (1), a round hole groove arranged in the bearing box (2), a main shaft (1) rotatably arranged in the round hole groove, a first motor fixedly arranged on the rear end surface of the bearing box (2) and connected with the main shaft (1), a bearing device arranged on the main shaft (1), a straight plate (3) fixedly arranged on the front end surface of the base (1), a movable space arranged on the right end surface of the straight plate (3), an adjusting rodless cylinder fixedly arranged on the left end wall of the movable space, and a scraping device arranged on the adjusting rodless cylinder; the bearing device comprises a transmission space arranged on the front end face of the main shaft (1), a second motor fixedly arranged on the rear end wall of the transmission space, a rotating shaft (4) fixedly arranged at the output end of the second motor, a first gear (5) fixedly arranged at the output end of the rotating shaft (4), and a rotating shaft (6) rotatably arranged on the front end face of the main shaft (1);
the method comprises the following steps of utilizing a centrifugal fan impeller slag removing device to remove slag from a centrifugal fan impeller, utilizing a navigation vehicle to lift and move a large impeller to a bearing device, starting the bearing device to center the large impeller when an assembly groove on the large impeller is not aligned with a main shaft on the bearing device and is blocked and cannot enter, enabling the large impeller to enter, and when the large impeller is assembled on the bearing device, adjusting a rodless cylinder to start and drive a scraping device to move to the front side of a blade, and removing the slag on the blade by the scraping device.
2. The processing method according to claim 1, characterized in that: the operation of artifical deburring of getting rid of the blade is for placing the blade on the main shaft of bearing box, then the manual work utilizes the unhairing limit machine to go on unhairing limit.
3. The processing method according to claim 1, characterized in that: the operation of the dynamic balance test is to drive the impeller to rotate by using the motor, and then add corresponding unbalance values to the positions where the unbalance is detected; and the preset qualified requirement is met, and the workpiece balance test, correction and processing are finished.
4. The production method based on the closed centrifugal fan simulation test according to claim 1, characterized in that: the operation of the static balance test is to assemble a balance core shaft with a key and an impeller, place the impeller assembled with the core shaft on a balance frame, measure the end surface of two hubs of the impeller by a tape measure to ensure that the distance between the two parallel guide rails is equal, ensure that the impeller rolls gently towards one direction, and naturally stops, mark the lowest point, then ensure that the impeller rolls in the opposite direction, mark the lowest point, repeat the operation for 3 to 4 times, take the average position of each mark, namely the position of the impeller without the balance weight, add a certain amount of oil sludge at the lightest position of the upper part for balancing weight, repeat the operation, adjust the position and the amount of the oil sludge until the impeller is placed on a test frame to roll freely, and achieve static balance when the impeller can stay at any position.
5. The production method based on the closed centrifugal fan simulation test according to claim 1, characterized in that: the scraping device comprises two movable hydraulic cylinders (22) which are respectively and fixedly arranged at the output end of the adjusting rodless cylinder, a matched straight plate (23) which is fixedly arranged on the right end surface of the two movable hydraulic cylinders (22), a rodless cylinder (24) which is fixedly arranged on the right end surface of the matched straight plate (23), a first movable plate (25) which is fixedly arranged at the output end of the rodless cylinder (24), two second movable plates (26) which are respectively and fixedly arranged on the upper side and the lower side of the rear end surface of the first movable plate (25), and a flat plate (27) which is fixedly arranged on the right end surface of the matched straight plate (23), the turning tool comprises a ventilation space arranged in a flat plate (27), a hollow groove arranged on the rear end wall of the ventilation space, a pushing moving block arranged in the hollow groove in a front-and-back moving mode, an inclined block (29) fixedly arranged on the rear end face of the pushing moving block, and two turning tool assemblies respectively arranged on two second moving plates (26);
the egg shell breaking detection method comprises the following steps of utilizing a detection device to break eggs, utilizing a scraping device to scrape slag on blades as follows, placing the blades on a bearing device, adjusting a rodless cylinder to adjust the front position and the rear position of the scraping device, moving two movable hydraulic cylinders (22), driving a bevel block (23) to move rightwards, pushing the blades to move forwards by an inclined block (29), increasing the air pressure in a ventilation space, and driving two turning cutter assemblies to turn over to contact with the blades to remove the slag on the blades.
6. The production method based on the closed centrifugal fan simulation test according to claim 1, characterized in that: the turning tool assembly on the upper side comprises a first supporting plate (30) fixedly arranged on the upper end face of a second moving plate (26), two transmission holes respectively arranged on the left side and the right side in the first supporting plate (30), two matched transmission shafts respectively rotatably arranged in the transmission holes, two rotating gears (31) respectively fixedly arranged on the outer surfaces of the two matched transmission shafts, a ventilation shell (32) fixedly arranged on the upper end face of the second moving plate (26), an air pressure space arranged on the upper end face of the ventilation shell (32), a telescopic rod capable of being vertically arranged in the air pressure space, a communication hose (34) communicated with the air pressure space and the ventilation space, and two turning parts respectively arranged on the left side and the right side of the upper end face of the second moving plate (26), wherein the two rotating gears (31) are respectively positioned on the two transmission holes on the left side and the right side;
let the turning tool subassembly can carry out the step as follows that contacts with the blade, atmospheric pressure in the space of ventilating increases to make the atmospheric pressure increase in the atmospheric pressure space through intercommunication hose (34), promote the upset of right side piece and contact downwards, the upset piece on right side drives right side rotating gear (31) rotatory simultaneously, and left rotating gear (31) drive left rotating gear (31) rotatory, and left rotating gear (31) drive left upset piece rotatory.
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| CN117267151A (en) * | 2023-04-23 | 2023-12-22 | 江苏海拓宾未来工业科技集团有限公司 | Air suspension centrifugal blower and processing technology thereof |
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| CN117267151A (en) * | 2023-04-23 | 2023-12-22 | 江苏海拓宾未来工业科技集团有限公司 | Air suspension centrifugal blower and processing technology thereof |
| CN117267151B (en) * | 2023-04-23 | 2024-04-02 | 江苏海拓宾未来工业科技集团有限公司 | Air suspension centrifugal blower and processing technology thereof |
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