CN114871874A - Fan impeller shaft centre bore subassembly of polishing - Google Patents
Fan impeller shaft centre bore subassembly of polishing Download PDFInfo
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- CN114871874A CN114871874A CN202210807488.3A CN202210807488A CN114871874A CN 114871874 A CN114871874 A CN 114871874A CN 202210807488 A CN202210807488 A CN 202210807488A CN 114871874 A CN114871874 A CN 114871874A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention relates to the technical field of grinding, in particular to a fan impeller shaft center hole polishing assembly. A fan impeller shaft center hole polishing assembly comprises a fixing rod, a conical disc, a first polishing portion, a second polishing portion and an adjusting mechanism. When the fan impeller shaft hole polishing assembly provided by the invention is used for polishing a fan impeller shaft hole with a smaller diameter, the first polishing part is used for polishing the fan impeller shaft hole, so that the condition that the propagation speed of the surface metal plastic deformation of the fan impeller shaft hole cannot follow the grinding speed and the material cannot deform in time due to more polishing wheels, and the surface roughness value of the ground surface is reduced can be prevented. When the center hole of the fan impeller shaft is large, the second polishing part can be suddenly opened, and meanwhile, the hole wall of the center hole of the fan impeller shaft is polished, so that polishing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of grinding, in particular to a fan impeller shaft center hole polishing assembly.
Background
When the central hole of the fan impeller shaft is machined, the central hole is out of tolerance, burrs are arranged on the surface of the central hole or scrap iron is adhered to the surface of the central hole to generate jumping, so that the machining precision is reduced, waste products are easy to generate, and the work of the fan is influenced. Therefore, before machining, a grinding device is needed to grind and repair the central hole of the fan impeller shaft so as to meet the technological requirements. Currently, the method for grinding and repairing the central hole is generally completed by manually polishing with sand paper. This grinding method is difficult to ensure the grinding repair accuracy and causes a new out-of-tolerance. In addition, the manual polishing also has the defects of low working efficiency, high labor intensity and easy injury of operators.
When the grinding device disclosed in the patent with the publication number of CN 109202561B is used, the tensioning shoe is used for driving the grinding roller to be tensioned with the inner wall of the inner ring or the outer ring of the rolling bearing, so that tensioning type grinding of the inner wall of the inner ring or the outer ring of the rolling bearing is realized, but the mode cannot adjust the grinding efficiency according to the aperture of the hole, and the adaptability is low.
Disclosure of Invention
The invention provides a fan impeller shaft center hole polishing assembly, which solves the problem that the polishing efficiency cannot be adjusted in a self-adaptive mode by an existing polishing assembly.
The invention relates to a fan impeller shaft center hole polishing component which adopts the following technical scheme:
a fan impeller shaft center hole polishing assembly comprises a fixing rod, a conical disc, a first polishing portion, a second polishing portion and an adjusting mechanism. The fixed rod is arranged in the front-back direction; the conical disc is sleeved on the fixed rod, the small end of the conical disc faces forwards, and the conical disc is arranged in a sliding manner in the front-back direction along the fixed rod; the first grinding part comprises at least three first grinding wheels which are uniformly distributed around the conical surface of the conical disc, each first grinding wheel is rotatably arranged on a first vertical frame around an axis extending in the front-back direction, and each first vertical frame is slidably arranged in the front-back direction along the conical surface of the conical disc. The second grinding part comprises second grinding wheels with the same number as that of the first grinding wheels, each second grinding wheel and the first grinding wheel are arranged at intervals, each second grinding wheel is rotatably arranged on a second vertical frame around an axis extending in the front-back direction, and the second vertical frame can slide along the axis direction of the conical disc and can slide along the radial direction of the conical disc; the adjusting mechanism is used for enabling the first grinding part to move outwards along the conical surface of the conical disc when the conical disc moves forwards relative to the fixed rod, limiting the second grinding wheel to move outwards relative to the conical disc, and after the first grinding part expands to a preset degree, removing the limitation on the second grinding wheel and enabling the second grinding wheel to move outwards relative to the conical disc to be located on the same reference circle with the first grinding wheel.
Furthermore, the adjusting mechanism comprises a first hinged plate, a second hinged plate, a first sliding block, a second sliding block, a connecting rod, a limiting assembly, an unlocking assembly and a pushing assembly; an end cover is arranged at the front end of the fixed rod, two ends of the first hinged plate are respectively hinged to the first vertical frame and the end cover, and two ends of the second hinged plate are respectively hinged to the second vertical frame and the end cover; the first sliding block is arranged along the first hinged plate in a sliding mode, and two sides of the first sliding block are provided with a first hinged seat in a rotating mode; the second sliding block is arranged in a sliding manner along the second hinge plate in the front-back direction, two sides of the second sliding block are respectively rotatably provided with a second hinge seat, and each first hinge seat and each second hinge seat are rotatably arranged around the tangent line of the fixed shaft; one end of each connecting rod is rotatably connected to the first sliding block through a first hinge seat, the other end of each connecting rod is rotatably connected to the second sliding block through a second hinge seat, and two ends of each connecting rod rotate around a reference straight line extending in the front-back direction; the limiting assembly is used for limiting the second hinge base to rotate relative to the second sliding block in the initial state; the unlocking assembly is used for releasing the limitation on the second hinge seat after the second sliding block moves to a preset position along the second hinge rod; the pushing assembly is used for promoting the second grinding wheel to move outwards relative to the conical disc to be positioned on the same reference circle with the first grinding wheel after the unlocking assembly releases the limitation of the second hinged seat.
Furthermore, an installation groove with a forward opening is formed in the second sliding block, a rotating shaft is installed on each second hinge seat and can be rotatably installed on the second sliding block, one end of each rotating shaft extends into the installation groove, and a limiting groove is formed in the rear side of each rotating shaft; the limiting assembly comprises a limiting block, a through hole is formed in the limiting block, a locking convex column is installed on the hole wall of the through hole, and the locking convex column is inserted into the limiting groove in the initial state so as to limit the second hinged seat to rotate relative to the second sliding block.
Furthermore, the front end of the limiting block extends out of the opening of the mounting groove; the unlocking assembly comprises a jacking sliding block and a connecting spring, the jacking sliding block is located on the front side of the limiting block, the jacking sliding block is arranged along the second hinge rod in a sliding mode, and the rear end of the jacking sliding block is connected with the second hinge rod through the connecting spring.
Furthermore, each first hinging seat and each second hinging seat are respectively provided with a fixing shaft extending along the front-back direction, and the end part of the connecting rod is rotatably arranged around the fixing shaft; the urging mechanism includes a first torsion spring provided between the fixed shaft and the end of the connecting rod, the first torsion spring having a tendency to urge the connecting rod to be held in an initial state.
Furthermore, the front side of each connecting rod is also provided with a positioning hole, the fan impeller shaft center hole grinding assembly further comprises a stabilizing mechanism, and the stabilizing mechanism comprises a locking rod and a rotating plate; the locking rod is slidably arranged on the second hinge seat along the front-back direction; the rotating disc is arranged on the limiting block and used for pushing the locking rod to move backwards after the locking rod is aligned with the positioning hole and moves to a preset position along with the limiting block, so that the locking rod is inserted into the positioning hole.
Furthermore, the fan impeller shaft center hole polishing assembly further comprises a liquid spraying mechanism, wherein the liquid spraying mechanism comprises a liquid guide pipe, a liquid spraying nozzle and a liquid control valve; the liquid guide pipe comprises a main pipe and a plurality of branch pipes which are communicated with each other, the liquid guide pipe penetrates through the inside of the fixing rod from the rear end of the fixing rod and penetrates out of each first sliding block and each limiting block through the branch pipes, the liquid spraying nozzle is arranged on the outer side of each first sliding block and each second sliding block, the liquid spraying nozzle arranged on the first sliding block is communicated with the branch pipes penetrating out of the first sliding blocks, and the liquid spraying nozzle arranged on the second sliding block is staggered with the branch pipes penetrating out of the limiting blocks in the initial state; and is communicated with the branch pipe penetrating out of the limiting block after the limitation of the second hinged seat is released.
Furthermore, a plurality of first slide ways and a plurality of second slide ways are arranged on the outer surface of the conical disc, the plurality of first slide ways are uniformly distributed around the circumference of the conical disc, the first slide ways extend from the front end of the conical disc to the rear end of the conical disc along the outer surface of the conical disc, and the first vertical frame is slidably arranged along the first slide ways; the second slide extends along the axial direction of awl dish, extends to the rear end of awl dish from the front end of awl dish, the perpendicular frame of second includes first sliding part and second sliding part, and first sliding part and second sliding part set up along upper and lower direction telescopically, the second wheel of polishing is rotationally installed in second sliding part, first sliding part sets up along second slide slidable.
Furthermore, support shafts are fixedly installed on two sides of the portion, extending out of the installation groove, of the limiting block, each rotating plate is rotatably sleeved on each support shaft, and a second torsion spring for enabling the rotating plates to be kept at the initial positions is arranged between each rotating plate and each support shaft.
Furthermore, a first sliding groove is formed in the outer side of the first hinged plate, the first sliding block can slide along the first sliding groove, a second sliding groove is formed in the outer side of the second hinged plate, the second sliding block can slide along the second sliding groove, and the jacking sliding block is located in the second sliding groove.
The invention has the beneficial effects that: when the fan impeller shaft hole polishing assembly provided by the invention is used for polishing a fan impeller shaft hole with a smaller diameter, the first polishing part is used for polishing the fan impeller shaft hole, so that the condition that the propagation speed of the surface metal plastic deformation of the fan impeller shaft hole cannot follow the grinding speed and the material cannot deform in time due to more polishing wheels, and the surface roughness value of the ground surface is reduced can be prevented. When the center hole of the fan impeller shaft is large, the second polishing part can be suddenly opened, and meanwhile, the hole wall of the center hole of the fan impeller shaft is polished, so that polishing efficiency is improved.
Through setting up stabilizing mean, can make six connecting rods keep in regular hexagon state, promptly, impel when first emery wheel and second emery wheel all polish the pore wall of fan impeller axle centre bore and keep first emery wheel and second emery wheel more reliable and more stable.
Through setting up hydrojet mechanism, when polishing work, open hydrojet mechanism through the control valve, make liquid through being responsible for a plurality of minutes pipes of flow direction, and spout in the hydrojet mouth, carry out humidification and cooling to the position of polishing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a fan impeller shaft center hole grinding assembly of the present invention;
FIG. 2 is a front view of an embodiment of a fan impeller shaft center hole grinding assembly of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged view of FIG. 3 at C;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 6 is an enlarged view of FIG. 5 at D;
FIG. 7 is a schematic view of a portion of a first sanding plate, a first sanding portion, and an adjustment mechanism of an embodiment of a fan wheel shaft center hole sanding assembly of the present invention;
FIG. 8 is a schematic view of a second grinding section of an embodiment of a fan impeller shaft center hole grinding assembly of the present invention shown in a non-outwardly expanded state.
In the figure: 100. a conical disc; 110. a first slideway; 120. a second slideway; 130. a propulsion ring; 140. an end cap; 150. fixing the rod; 210. a first grinding wheel; 220. a first vertical frame; 230. a first hinge mount; 240. a first hinge plate; 241. a first chute; 250. a first slider; 310. a second grinding wheel; 320. a second vertical frame; 330. a second hinge mount; 340. a second hinge plate; 341. a second chute; 390. a second slider; 350. a limiting block; 360. locking the convex column; 370. pressing the sliding block; 380. a connecting rod; 410. a main pipe; 420. pipe distribution; 430. a liquid spray nozzle; 450. locking the round bar; 460. and rotating the plate.
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.
As shown in fig. 1 to 8, the fan impeller shaft center hole grinding assembly according to the embodiment of the present invention includes a fixing rod 150, a conical disc 100, a first grinding portion, a second grinding portion, an adjusting mechanism, and a limiting portion. The fixing lever 150 is disposed in the front-rear direction. The conical disc 100 is sleeved on the fixing rod 150, and the small end of the conical disc 100 faces forward and is slidably arranged in the front-rear direction along the fixing rod 150; the first grinding part includes three first grinding wheels 210, the three first grinding wheels 210 are uniformly distributed around the conical surface of the conical disc 100, each first grinding wheel 210 is rotatably mounted to one first vertical frame 220 around an axis extending in the front-rear direction, and each first vertical frame 220 is slidably disposed in the front-rear direction along the conical surface of the conical disc 100. The second grinding part includes the same number of second grinding wheels 310 as the number of the first grinding wheels 210, each of the second grinding wheels 310 is disposed at an interval from the first grinding wheel 210, each of the second grinding wheels 310 is rotatably mounted to a second vertical frame 320 about an axis extending in a front-rear direction, and the second vertical frame 320 is slidably disposed in an axial direction of the cone plate 100 and in a radial direction of the cone plate 100. The adjusting mechanism is used for urging the first grinding part to move outwards along the conical surface of the conical disc 100 when the conical disc 100 moves forwards relative to the fixing rod 150 until the first grinding wheel 210 contacts with the hole wall of the fan impeller shaft central hole and limits the second grinding wheel 310 from moving outwards relative to the conical disc 100, and the second grinding wheel 310 can only move backwards relative to the axis along the conical disc 100, and this state indicates that the hole diameter of the fan impeller shaft central hole is small and a plurality of grinding wheels are not required to work simultaneously. When the first grinding part is expanded to a predetermined extent, the limitation on the second grinding wheel 310 is removed, and the second grinding wheel 310 is caused to move outwards relative to the conical disc 100 to a reference circle which is the same as the first grinding wheel 210, which means that the aperture of the central hole of the fan impeller shaft is larger, and the grinding efficiency of the fan impeller shaft needs to be improved. When the fan impeller shaft is rotated at a high speed, and the first polishing wheel 210 or the second polishing wheel 310 is in contact with the inner peripheral wall of the fan impeller shaft center hole, the fan impeller shaft center hole is polished.
In this embodiment, the adjustment mechanism includes a first hinge plate 240, a second hinge plate 340, a first slider 250, a second slider 390, a connecting rod 380, a limit assembly, an unlock assembly, and a push assembly. The end cap 140 is installed at the front end of the fixing lever 150, both ends of the first hinge plate 240 are hinged to the first vertical frame 220 and the end cap 140, respectively, and both ends of the second hinge plate 340 are hinged to the second vertical frame 320 and the end cap 140, respectively. The first slider 250 is slidably disposed along the first hinge plate 240, and a first hinge housing 230 is rotatably mounted on both sides of the first slider 250. The second slider 390 is slidably disposed along the second hinge plate 340 in the front and rear direction, one second hinge base 330 is rotatably mounted on both sides of the second slider 390, and each of the first hinge base 230 and the second hinge base 330 is rotatably disposed around a tangent line of the fixed shaft. The number of the connection rods 380 is six, one end of each connection rod 380 is rotatably connected to the first slider 250 through the first hinge base 230, the other end of each connection rod 380 is rotatably connected to the second slider 390 through the second hinge base 330, both ends of the connection rod 380 are rotated around a reference straight line extending in the front-rear direction, and the six connection rods 380 are positioned in a regular hexagon shape in an initial state. The limiting assembly is used for limiting the rotation of the second hinge base 330 relative to the second sliding block 390 in the initial state, so that when the first sliding block 250 slides along the first hinge plate 240, the first hinge base 230 rotates relative to the first sliding block 250 under the driving of the connecting rod 380, and since the second hinge base 330 cannot rotate relative to the second sliding block 390, the position of the second sliding block 390 does not change relative to the fixing rod 150, that is, the second sliding block 390 and the second vertical frame 320 cannot move outwards relative to the conical disk 100. The unlocking assembly is used to release the restriction of the second hinge base 330 after the second slider 390 moves to a predetermined position along the second hinge lever. The pushing assembly is used for urging the second grinding wheel 310 to move outwards relative to the conical disc 100 to be located on the same reference circle as the first grinding wheel 210 after the unlocking assembly releases the restriction of the second hinge seat 330, so that the first grinding part and the second grinding part jointly grind the central hole of the fan impeller shaft.
In this embodiment, a mounting groove with a forward opening is formed in the second slider 390, a rotating shaft is mounted on each second hinge base 330, the rotating shaft is rotatably mounted on the second slider 390, one end of the rotating shaft extends into the mounting groove, and a limiting groove is formed in the rear side of the rotating shaft. The limiting assembly comprises a limiting block 350, a through hole is formed in the limiting block 350, a locking convex column 360 is installed on the hole wall of the through hole, and the locking convex column 360 is inserted into the limiting groove in the initial state so as to limit the second hinge base 330 to rotate relative to the second sliding block 390.
In this embodiment, the front end of the limiting block 350 extends out of the opening of the mounting groove, and the rear end of the limiting block 350 abuts against the second vertical frame 320. The unlocking assembly comprises a jacking sliding block 370 and a connecting spring, the jacking sliding block 370 is positioned at the front side of the limiting block 350, the jacking sliding block 370 is slidably arranged along the second hinge rod, and the rear end of the jacking sliding block 370 is connected with the second hinge rod through the connecting spring. When the second slider 390 slides forward along the second hinge plate 340 to make the front end of the limiting block 350 abut against the pressing slider 370, the pressing slider 370 pushes the limiting block 350 to move backward, so that the locking protrusion 360 is pulled out from the limiting groove, and the limiting assembly releases the limitation on the second hinge base 330.
In the present embodiment, a fixing shaft extending in the front-rear direction is mounted on each of the first hinge base 230 and the second hinge base 330, and an end of the connecting rod 380 is rotatably disposed around the fixing shaft. The pushing mechanism includes a first torsion spring disposed between the fixed shaft and the end of the connecting rod 380, the first torsion spring has a tendency to urge the connecting rod 380 to maintain an initial state, when the two ends of the connecting rod 380 rotate relative to the fixed shaft, the torsion spring compresses the accumulated force, when the restriction of the second hinge base 330 is removed, the torsion spring urges the six connecting rods 380 to reset, and reach a regular hexagon structure again, so that the second grinding wheel 310 moves outward relative to the conical disc 100 to be located on the same reference circle as the first grinding wheel 210.
In this embodiment, each connecting rod 380 is further provided with a positioning hole at the front side thereof, and a fan impeller shaft center hole grinding assembly further comprises a stabilizing mechanism including a locking rod and a rotating plate 460. The locking lever is slidably mounted to the second hinge base 330 in the front-rear direction. The rotating disk is arranged on the limiting block 350 and used for pushing the locking rod to move backwards after the locking rod is aligned with the positioning hole and moves to a preset position along with the limiting block 350, the locking convex column 360 on the limiting block 350 at the preset position is separated from the through hole, so that the locking rod is inserted into the positioning hole, and at the moment, the six connecting rods 380 reach the regular hexagon state again, so that the six connecting rods 380 are kept in the regular hexagon state through the arrangement of the stabilizing mechanism, namely, the first polishing wheel 210 and the second polishing wheel 310 are kept in contact with the hole wall of the fan impeller shaft center hole.
In this embodiment, a fan impeller shaft center hole grinding assembly further comprises a liquid spraying mechanism, wherein the liquid spraying mechanism comprises a liquid guide pipe, a liquid spraying nozzle 430 and a liquid control valve. The catheter comprises a main tube 410 and a plurality of branch tubes 420 which are communicated with each other, the catheter penetrates through the inside of the fixing rod 150 from the rear end of the fixing rod 150 and penetrates out of each first sliding block 250 and each limiting block 350 through the branch tubes 420, the liquid spray nozzle 430 is arranged on the outer side of each first sliding block 250 and each second sliding block 390, the liquid spray nozzle 430 arranged on the first sliding block 250 is communicated with the branch tubes 420 penetrating out of the first sliding block 250, and the liquid spray nozzle 430 arranged on the second sliding block 390 is staggered with the branch tubes 420 penetrating out of the limiting blocks 350 in the initial state. And communicates with the branched pipe 420 penetrating the stopper 350 after the restriction of the second hinge base 330 is released. During polishing, the liquid spraying mechanism is opened by controlling the valve, so that liquid flows to the branch pipes 420 through the main pipe 410 and is sprayed out from the liquid spraying nozzle 430, and the polishing position is humidified and cooled.
In this embodiment, a plurality of first slideways 110 and a plurality of second slideways 120 are disposed on an outer surface of the conical plate 100, the plurality of first slideways 110 are uniformly distributed around a circumferential direction of the conical plate 100, the first slideways 110 extend from a front end of the conical plate 100 to a rear end of the conical plate 100 along the outer surface of the conical plate 100, and the first vertical frame 220 is slidably disposed along the first slideways 110. The second slide 120 extends along the axial direction of the conical disc 100, and extends from the front end of the conical disc 100 to the rear end of the conical disc 100, the second vertical frame 320 includes a first sliding portion and a second sliding portion, the first sliding portion and the second sliding portion are telescopically arranged along the up-down direction, the second grinding wheel 310 is rotatably installed on the second sliding portion, and the first sliding portion is slidably arranged along the second slide 120.
In this embodiment, support shafts are fixedly installed at both sides of the portion of the limit block 350 extending out of the installation groove, each rotating plate 460 is rotatably sleeved on the support shaft, and a second torsion spring for urging the rotating plate 460 to be maintained at an initial position is disposed between the rotating plate 460 and the support shaft, so as to prevent the rotating plate 460 from being unable to urge the locking round bar 450 to be inserted into the locking hole.
In this embodiment, a first sliding slot 241 is disposed on an outer side of the first hinge plate 240, the first sliding block 250 is slidable along the first sliding slot 241, a second sliding slot 341 is disposed on an outer side of the second hinge plate 340, the second sliding block 390 is slidable along the second sliding slot 341, and the pressing sliding block 370 is located in the second sliding slot 341. The outside of dead lever 150 still overlaps and is equipped with propulsion ring 130, and propulsion ring 130 is in the rear side of conical disk 100, and rotates with the rear end of conical disk 100 and be connected, and propulsion ring 130 passes through spiral transmission fit with the outside of dead lever 150, specifically, the outside of dead lever 150 is provided with the thread groove, and the inside of propulsion ring 130 is provided with the screw thread with thread groove sliding fit, drives conical disk 100 and slides in the front and back direction along dead lever 150 when propulsion ring 130 rotates.
The working principle and working mode of the fan wheel shaft center hole grinding assembly of the embodiment are that firstly, the fan wheel shaft is sleeved outside the device, then the pushing ring 130 is rotated, the pushing ring 130 drives the conical disc 100 to move forwards along the fixed shaft when rotating, the conical disc 100 drives the three first grinding wheels 210 to move outwards and expand when moving forwards along the fixed shaft through the three first vertical frames 220, and the three second vertical frames 320 move backwards along the corresponding second sliding grooves 341, because the second hinge seat 330 cannot rotate relative to the second sliding block 390, the second vertical frames cannot move outwards relative to the fixed rod 150, so that the second vertical frames 320 and the second hinge plate 340 cannot change relative to the fixed rod 150, in the process, the first sliding block 250 and the second sliding block 390 slide relative to one side close to the end cover 140 under the limitation of the plurality of connecting rods 380, and simultaneously, the six connecting rods 380 gradually deform towards three directions from an initial regular hexagon, at this time, the connecting rod 380 rotates relative to the fixed shaft, so that the first torsion spring is charged with energy.
When the second slider 390 moves to make the limiting block 350 contact with the pressing slider 370 and then continues to move, the limiting block 350 is pushed backward by the pressing slider 370, so that the limiting block 350 moves backward relative to the second slider 390, and the locking protrusion 360 is disengaged from the limiting groove, thereby releasing the limitation on the second hinge base 330. When the restriction of the second hinge base 330 is released, the connecting rod 380 is reset under the action of the first torsion spring, when the connecting rod 380 is reset, the second slider 390 is driven to move outwards relative to the fixed shaft, the second slider 390 drives the second sliding part of the second vertical frame 320 to move outwards through the second hinge plate 340, and then the second grinding wheel 310 is driven to move to be in contact with the hole wall of the fan impeller shaft central hole. And when the connecting rod is reset, the positioning hole on the connecting rod is aligned with the locking convex column 360, and as the rotating plate 460 moves to one side close to the second hinge base 330 along with the limiting block 350, and the second torsion spring stores energy after the rotating plate 460 is contacted with the second hinge base 330, after the positioning hole is aligned with the locking convex column 360, the rotating disk urges the locking convex column 360 to be inserted into the positioning hole under the pushing force of the second torsion spring, so that the six connecting rods 380 are kept in a regular hexagon state, and the positions of the first polishing wheel 210 and the second polishing wheel 310 are more stable when the central hole of the fan impeller shaft is polished.
Further, the liquid control valve is opened during the whole polishing process, so that the liquid flows to the plurality of branch pipes 420 through the main pipe 410 and is sprayed out from the liquid spraying nozzle 430, and the polishing position is humidified and cooled. Since the liquid discharge nozzle 430 installed at the second block 390 is initially misaligned with the branch pipe 420 penetrating through the stopper 350, the liquid discharge nozzle 430 installed at the second block 390 cannot discharge liquid when the second grinding wheel 310 does not start operating, and the liquid discharge nozzle 430 installed at the second block 390 also starts discharging liquid when the second grinding wheel 310 operates.
When the grinding apparatus is returned to the initial position, the retainer block 350 is pushed by the second vertical frame 320 to complete the return.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a fan wheel axle centre bore subassembly of polishing which characterized in that: the device comprises a fixed rod, a conical disc, a first polishing part, a second polishing part and an adjusting mechanism; the fixed rod is arranged in the front-back direction; the conical disc is sleeved on the fixed rod, the small end of the conical disc faces forwards, and the conical disc is arranged in a sliding manner in the front-back direction along the fixed rod; the first grinding part comprises at least three first grinding wheels which are uniformly distributed around the conical surface of the conical disc, each first grinding wheel is rotatably arranged on a first vertical frame around an axis extending in the front-back direction, and each first vertical frame is slidably arranged in the front-back direction along the conical surface of the conical disc; the second grinding part comprises second grinding wheels with the same number as that of the first grinding wheels, each second grinding wheel and the first grinding wheel are arranged at intervals, each second grinding wheel is rotatably arranged on a second vertical frame around an axis extending in the front-back direction, and the second vertical frame can slide along the axis direction of the conical disc and can slide along the radial direction of the conical disc; the adjusting mechanism is used for enabling the first grinding part to move outwards along the conical surface of the conical disc when the conical disc moves forwards relative to the fixing rod, limiting the second grinding wheel to move outwards relative to the conical disc, and after the first grinding part expands to a preset degree, the limiting on the second grinding wheel is removed, and enabling the second grinding wheel to move outwards relative to the conical disc to be located on the same reference circle with the first grinding wheel.
2. The fan impeller shaft center hole grinding assembly of claim 1, wherein: the adjusting mechanism comprises a first hinged plate, a second hinged plate, a first sliding block, a second sliding block, a connecting rod, a limiting component, an unlocking component and a pushing component; an end cover is arranged at the front end of the fixed rod, two ends of the first hinged plate are respectively hinged to the first vertical frame and the end cover, and two ends of the second hinged plate are respectively hinged to the second vertical frame and the end cover; the first sliding block is arranged along the first hinged plate in a sliding mode, and two sides of the first sliding block are provided with a first hinged seat in a rotating mode; the second sliding block is arranged in a sliding manner along the second hinge plate in the front-back direction, two sides of the second sliding block are respectively rotatably provided with a second hinge seat, and each first hinge seat and each second hinge seat are rotatably arranged around the tangent line of the fixed shaft; one end of each connecting rod is rotatably connected to the first sliding block through a first hinge seat, the other end of each connecting rod is rotatably connected to the second sliding block through a second hinge seat, and two ends of each connecting rod rotate around a reference straight line extending in the front-back direction; the limiting assembly is used for limiting the second hinge base to rotate relative to the second sliding block in the initial state; the unlocking assembly is used for releasing the limitation on the second hinge seat after the second sliding block moves to a preset position along the second hinge rod; the pushing assembly is used for promoting the second grinding wheel to move outwards relative to the conical disc to be positioned on the same reference circle with the first grinding wheel after the unlocking assembly releases the limitation of the second hinged seat.
3. The fan impeller shaft center hole grinding assembly of claim 2, wherein: an installation groove with a forward opening is formed in the second sliding block, a rotating shaft is installed on each second hinge seat and can be rotatably installed on the second sliding block, one end of each rotating shaft extends into the installation groove, and a limiting groove is formed in the rear side of each rotating shaft; the limiting assembly comprises a limiting block, a through hole is formed in the limiting block, a locking convex column is installed on the hole wall of the through hole, and the locking convex column is inserted into the limiting groove in the initial state so as to limit the second hinged seat to rotate relative to the second sliding block.
4. The fan impeller shaft center hole grinding assembly of claim 3, wherein: the front end of the limiting block extends out of the opening of the mounting groove; the unlocking assembly comprises a jacking sliding block and a connecting spring, the jacking sliding block is located on the front side of the limiting block, the jacking sliding block is arranged along the second hinge rod in a sliding mode, and the rear end of the jacking sliding block is connected with the second hinge rod through the connecting spring.
5. The fan impeller shaft center hole grinding assembly of claim 3, wherein: each first hinging seat and each second hinging seat are respectively provided with a fixing shaft extending along the front-back direction, and the end part of the connecting rod is rotatably arranged around the fixing shaft; the urging mechanism includes a first torsion spring provided between the fixed shaft and the end of the connecting rod, the first torsion spring having a tendency to urge the connecting rod to be held in an initial state.
6. The fan impeller shaft center hole grinding assembly of claim 2, wherein: the front side of each connecting rod is also provided with a positioning hole, the fan impeller shaft center hole grinding assembly further comprises a stabilizing mechanism, and the stabilizing mechanism comprises a locking rod and a rotating plate; the locking rod is slidably arranged on the second hinge seat along the front-back direction; the rotating disc is arranged on the limiting block and used for pushing the locking rod to move backwards after the locking rod is aligned with the positioning hole and moves to a preset position along with the limiting block, so that the locking rod is inserted into the positioning hole.
7. The fan impeller shaft center hole grinding assembly of claim 2, wherein: the liquid spraying mechanism comprises a liquid guide pipe, a liquid spraying nozzle and a liquid control valve; the liquid guide pipe comprises a main pipe and a plurality of branch pipes which are communicated with each other, the liquid guide pipe penetrates through the inside of the fixing rod from the rear end of the fixing rod and penetrates out of each first sliding block and each limiting block through the branch pipes, the liquid spraying nozzle is arranged on the outer side of each first sliding block and each second sliding block, the liquid spraying nozzle arranged on the first sliding block is communicated with the branch pipes penetrating out of the first sliding blocks, and the liquid spraying nozzle arranged on the second sliding block is staggered with the branch pipes penetrating out of the limiting blocks in the initial state; and is communicated with the branch pipe penetrating out of the limiting block after the limitation of the second hinged seat is released.
8. The fan impeller shaft center hole grinding assembly of claim 1, wherein: the outer surface of the conical disc is provided with a plurality of first slide ways and a plurality of second slide ways, the first slide ways are uniformly distributed around the circumference of the conical disc, the first slide ways extend from the front end of the conical disc to the rear end of the conical disc along the outer surface of the conical disc, and the first vertical frame is slidably arranged along the first slide ways; the second slide extends along the axial direction of awl dish, extends to the rear end of awl dish from the front end of awl dish, the perpendicular frame of second includes first sliding part and second sliding part, and first sliding part and second sliding part set up along upper and lower direction telescopically, the second wheel of polishing is rotationally installed in second sliding part, first sliding part sets up along second slide slidable.
9. The fan impeller shaft center hole grinding assembly of claim 4, wherein: support shafts are fixedly arranged on two sides of the part of the limiting block, which extends out of the mounting groove, each rotating plate is rotatably sleeved on each support shaft, and a second torsion spring for enabling the rotating plates to be kept at the initial positions is arranged between the rotating plates and the support shafts.
10. The fan impeller shaft center hole grinding assembly of claim 4, wherein: the outer side of the first hinged plate is provided with a first sliding groove, the first sliding block can slide along the first sliding groove, the outer side of the second hinged plate is provided with a second sliding groove, the second sliding block can slide along the second sliding groove, and the jacking sliding block is positioned in the second sliding groove.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210807488.3A CN114871874B (en) | 2022-07-11 | 2022-07-11 | Fan impeller shaft centre bore subassembly of polishing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210807488.3A CN114871874B (en) | 2022-07-11 | 2022-07-11 | Fan impeller shaft centre bore subassembly of polishing |
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| CN114871874B CN114871874B (en) | 2022-09-30 |
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Cited By (3)
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| CN115070528A (en) * | 2022-08-22 | 2022-09-20 | 江苏顺律机电有限公司 | Automatic grinding equipment for fan impeller |
| CN117124238A (en) * | 2023-10-20 | 2023-11-28 | 歌玛磨具南通有限公司 | Self-adaptive grinding wheel device of grinding machine |
| CN117862980A (en) * | 2023-12-11 | 2024-04-12 | 广东思贝乐能源装备科技有限公司 | Vacuum pump impeller shaft hole grinding device |
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| CN117862980A (en) * | 2023-12-11 | 2024-04-12 | 广东思贝乐能源装备科技有限公司 | Vacuum pump impeller shaft hole grinding device |
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| CN114871874B (en) | 2022-09-30 |
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