CN110500319A - Primary integrally-regulated device outside axial-flow fan blade angle machine - Google Patents
Primary integrally-regulated device outside axial-flow fan blade angle machine Download PDFInfo
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- CN110500319A CN110500319A CN201910879976.3A CN201910879976A CN110500319A CN 110500319 A CN110500319 A CN 110500319A CN 201910879976 A CN201910879976 A CN 201910879976A CN 110500319 A CN110500319 A CN 110500319A
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- axis
- petiole
- worm gear
- component
- impeller hub
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 210000004907 gland Anatomy 0.000 claims description 25
- 210000003371 toe Anatomy 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 11
- 241001270131 Agaricus moelleri Species 0.000 claims description 9
- 241001416181 Axis axis Species 0.000 claims description 9
- 241000237858 Gastropoda Species 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 208000004141 microcephaly Diseases 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000003351 stiffener Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 9
- 230000003068 static effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000013519 translation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 244000144985 peep Species 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
- F04D29/36—Blade mountings adjustable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses integrally-regulated devices primary outside a kind of axial-flow fan blade angle machine.The invention mainly comprises cylinder circle, blade assembly, crank block component, impeller hub, transmission box part, push disk component, cover board, adjusting handle component；It is driven box part packet worm gear, worm screw, bearing, worm gear is engaged with the screw rod for pushing disk component affixed, disk component edge is pushed to be equipped with circular ring shape sliding slot, several crank block components are correspondingly connected with several blade assemblies, the sliding block of crank block component is evenly arranged in circular ring shape sliding slot, the journal engagement of crank connecting link one end of sliding block and crank block component, the other end of crank connecting link and the petiole end axle journal of blade assembly are connected by key pin；Sliding bearing cooperation in the middle part axle journal of petiole and the petiole sleeve of blade assembly, worm end are connect with adjusting handle component.Structure of the invention is more simple, light-weight, requirement on machining accuracy is low, and installation maintenance is easier.
Description
Technical field
The invention belongs to axial-flow fan blade angle adjustment devices, and in particular to a kind of axial-flow fan blade angle machine outer one
Secondary integrally-regulated device.
Background technique
Currently, propeller fan is widely used in the ventilating system of mine.In mine ventilation, not due to tunnel
Disconnected to extend and driving face is continuously increased, working condition constantly changes, and also requires the performance number of axial flow blower constantly
Adapt to the variation of this working condition.Change the performance number of blower, there are two types of ways most basic at present, first is that passing through frequency conversion tune
Speed changes the revolving speed of blower；Second is that the angle of blade is adjusted, the appropriate flow and pressure for changing blower.First method is because of investment
It is larger, seldom use, and most of mining axial blower is to change performance number using the method for adjusting blade angle.
Adjusting blade angle has dynamic and static two kinds of forms.Dynamic is that blower is adjusted in the process of running, this
The mechanism of regulative mode is more complex, and cost of manufacture is very high, therefore application is less；Static state, which is adjusted, is led to when blower is static
A series of mechanism manuals are crossed to adjust.And static adjust has that single blade is adjusted one by one and all blades are integrally-regulated (i.e. once
Adjust) two kinds of modes of operation.Single blade is adjusted one by one, is needed casing to disintegrate, or blower is dragged away from installation site, be loosened
Blade fixes device, locks again after rotating angle one by one, and be restored to original installation site, this regulative mode operator
Large labor intensity, longevity of service, angular error is also larger；Primary regulation device again can the interior knots different with outer two kinds of machine of extension set
Structure mode, Primary regulation device in machine, is adjusted, degree of regulation also increases, but wants respectively although being not required to blade one by one
Blower disintegration or drag installation site away from.
In the patent (CN202991625U and CN103047179B) of applicant early period, a kind of axis stream wind is disclosed
Primary integrally-regulated device, realizes and does not dismantle Blower Housing and blade outside machine blade angle machine, be also not required to disintegrate blower or
It is disposable outside the machine of shift position to adjust fan blade, but in actual use, there is also following shortcomings for discovery:
(1) worm gear case being driven, volume and weight is all larger, is affected to the total quality of impeller；
(2) pushing the axial movement of disk is to set feather key in reel outer circle to realize, this to be slidably matched because processing misses
Difference is difficult to ensure；
(3) installation difficulty of crank link mechanism is larger, and adjustment is also inconvenient；
(4) because worm gear is fixed by sliding bearing, resistance when movement is larger, and the operating force of rotation hand wheel is larger；
(5) leakproofness of worm gear case and whole device is not high, and in operation, dust and water mist in blower runner etc. hold
Easily enter transmission mechanism, the time is long, is easy to produce card resistance phenomenon, or even adjust not movable vane piece；
(6) when adjusting, operation handwheel will be inserted into worm screw one end of transmission case, and the rod piece depth of insertion is longer, to positivity
It is bad.
(7) since worm gear case is to cover on impeller reel, and the draught fan impeller of different size, reel size are different, because
And the specifications and models poor universality of worm gear case.
Summary of the invention
It is an object of the invention in view of the above defects of the prior art, carry out on the basis of original a large amount of
It improves, and provides that a kind of structure is more simple, light-weight, requirement on machining accuracy is low, the easier axial flow blower leaf of installation maintenance
Primary integrally-regulated device outside piece angle machine.
The purpose of the present invention is by the following technical solutions to realize: primary whole outside the axial-flow fan blade angle machine
Body regulating device, it includes cylinder circle, blade assembly, crank block component, impeller hub, transmission box part, pushes disk component, lid
Plate, adjusting handle component；Transmission box part is installed in space made of impeller hub and cover board enclosing, is located at impeller hub axis
One end, it includes the worm gear case for being equipped with worm gear, worm screw, bearing, and the installation otic placode of worm gear case end, which passes through, pushes disk component
After upper corresponding hollow out hole slot, it is fixed on the former of impeller hub by bolt assembly；Worm gear inner hole is helicitic texture, and is pushed away
The affixed external screw thread screw rod engagement of Moving plate ends, the axis of screw rod are overlapped with impeller hub axis axis；Push disk component be
One broadside flat-top " carnival hat " structure, flat part is installed between impeller hub shaft end portion and worm gear case end, on broadside
It is installed on impeller hub former on corresponding guiding pin equipped with several circular holes and by linear bearing, enables to push disk component
It is moved along impeller hub axis axis；The broadside edge of disk component is pushed to be equipped with circular ring shape sliding slot；Each crank block component and every
A blade assembly is correspondingly connected with, and the sliding block of each crank block component, which is along the circumferential direction evenly arranged on, pushes the circular ring shape of disk component sliding
In slot, the journal engagement of crank connecting link one end of sliding block inner hole and crank block component, the other end and blade group of crank connecting link
The petiole end axle journal of part is connected by key pin；It is uniformly distributed corresponding to blade assembly on the middle part axle journal and impeller hub circumference of petiole
Petiole sleeve in sliding bearing cooperation, and fixed by nut and retaining ring, the inner hole of sliding bearing and petiole sleeve；Transmission
The axis of the worm screw one or both ends of box part extends through the gland of worm end, and worm screw axle stretch end is equipped with square toes, adjusting handle portion
One end of the inside connecting rod of part is connect with the square toes of worm screw axle stretch end, during the other end of internal connecting rod is fixed on by bearing
Between on connector sleeve, gland is stretched out in the shaft end of internal connecting rod, and shaft end also is provided with square toes；External operation handle is passed through and is welded in outside cylinder circle
The operating stick splicing sleeve of side, the interior square toes with axis extending portion point in internal connecting rod of insertion cylinder circle are connect.
Specifically, the blade assembly includes blade, petiole sleeve, sliding bearing；Blade is made of winged petiole and petiole, winged petiole
For cast aluminum alloy material, petiole is steel material, and the two is cast integrally using nested structure；The middle part axle journal of petiole passes through gear
Sliding bearing connection in circle, floor clip, anti-return nut and petiole sleeve；The axle journal of petiole end is radial through flat key and song
The connection of handle connecting rod, connects axially through retaining ring, bolt and crank connecting link.
Specifically, the crank block component includes crank connecting link and sliding block；The small cephalic par of crank connecting link is axle journal, is led to
It crosses retaining pad, retaining ring and sliding block to connect, sliding block can be rotated freely around axle journal；The major part end of crank connecting link is the axis for being provided with keyway
Hole；The microcephaly of crank connecting link and the central axes of major part are parallel to each other and vertical with impeller hub axis axis.
Specifically, the impeller hub includes wheel hub ring, former, reel, stiffener plate, cover board mounting flange；With blade
The matched multiple petiole sleeves of component are uniformly welded on wheel hub ring；Former and cover board mounting flange are respectively welded at the two of wheel hub ring
On a end face；Reel is bolted on former center.
Specifically, the transmission box part includes worm gear case, worm gear, worm screw；Worm gear passes through gland one, bearing one, oil sealing
One is fixed in worm gear case, and worm gear axis is overlapped with impeller hub axis axis；Worm gear inner hole is nut structure, with promotion disk component
The affixed external screw thread screw rod engagement in end；Worm screw is fixed on worm gear case by gland two, bearing two, oil sealing two, and and worm gear
Axis is vertical；The axis at worm screw both ends extends through gland two, and axis stretches square head portion and exposes two ontology of gland；Worm gear case end is equipped with more
A installation otic placode outstanding, installation otic placode are fixed on after corresponding hollow out hole slot on promotion disk component by bolt assembly
On the former of impeller hub.
Specifically, the promotion disk component includes pushing disk ontology, sliding slot outer ring plate；Promotion disk ontology is a broadside flat-top
" carnival hat " structure, broadside marginal portion and sliding slot outer ring plate form the open circular ring shape sliding slot in outside by screw；It pushes away
Several number and shape hollow out hole slot A corresponding with worm gear case installation otic placode is provided on the flat-top of Moving plate ontology；It is pushing
Multiple circular holes are provided on the inside of circular ring shape sliding slot on disk ontology broadside, linear bearing is welded on the broadside of circular hole side and fixes
Block, linear bearing is fixed in the hole pushed on circular hole and linear bearing fixed block on disk ontology broadside, and passes through axis shelves
Circle limit；Position on the former of impeller hub corresponding to linear bearing is fixed with guiding pin, is oriented to pin and linear axis
Inner hole composition is held to be slidably matched；It pushes and is fixed with external screw thread screw rod at the end face axle center of disk ontology.
Specifically, the adjusting handle component includes internal connecting rod, intermediate connecting sleeve, external operation handle, operating stick
Splicing sleeve；Intermediate connecting sleeve is welded on impeller hub, and intermediate connecting sleeve hole central axes are overlapped with worm axis；Internal connecting rod
One end and worm end square toes connect, the other end is fixed on intermediate connecting sleeve by bearing, oil sealing, gland, and makes it
The square toes of end expose outside gland；One end of external operation handle is internal square head structure, across the inner hole of operating stick splicing sleeve
Afterwards, it is connect with the square toes of internal connecting rod exposed end portion；Operating stick splicing sleeve is welded on cylinder circle, the center line of inner hole with it is interior
The center line of portion's connecting rod is overlapped；Handle hole gland supports after external operation handle exits, through threaded engagement in operating stick
It puts on.
The present invention is by above-mentioned mechanism and is coupled to each other, and realizes that primary integrally-regulated principle is outside blade angle machine:
External operation handle is rotated outside shell cylinder circle, worm screw rotation is driven by internal connecting rod, worm gear is in worm screw
It can also be rotated under effect.Since the inner hole of worm gear is screw thread, being engaged with screw rod, screw rod can generate axial movement along worm gear center,
Screw rod is fixedly connected with disk ontology is pushed, and therefore, pushes disk ontology that can generate axial movement together with screw rod, when mobile,
Translation is realized by the guiding pin being fixed on impeller hub former.When pushing the translation of disk ontology, it is mounted on its peripheral circles
Sliding block in shape sliding slot, on the one hand can generate translational motion, and other direction can generate a degree of deflection along the chute；And because
Be for, sliding block link together with crank connecting link, and can be rotated around the axle journal of crank connecting link, so, crank connecting link can be because of sliding block
Translation generate deflection；The petiole junction of crank connecting link and blade be flat key connection, between the two will not relative rotary motion,
So petiole can also generate deflection.All blades of impeller hub circumference uniform distribution are all same structures, and movement is all identical, from
And realize that machine outdoor handle rotating vane angle is once integrally-regulated.
The present invention can be applied on large and medium-sized axial flow blower by improving to original regulating device, static in impeller
When state, be not required to disassembly Blower Housing and blade, be also not required to disintegrate blower or shift position, by machine outside handle, rotation
Internal drive mechanism, while the vaned angle of institute is adjusted, to change the performance number of blower, adapts to working condition and become
The needs of change, and reach and adjust quick and easy, accurate, it reduces the labor intensity of adjusting, saves the purpose of working time.This hair
It is bright other than having the effect of original device, meanwhile, there are also the advantages of the following aspects:
1, structure is more light and handy, and weight also mitigates, and reduces the load of fan operation.
2, cost of manufacture substantially reduces.
3, operation is more easier, and assembly maintenance is more simple.
4, reliability of operation is higher.
5, the versatility of worm box is good, and the impeller of different size can share.
Detailed description of the invention
Fig. 1 is the vertical profile structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the A-A the schematic diagram of the section structure of Fig. 1.
Fig. 3 is enlarged drawing at " I " in Fig. 1.
Fig. 4 is enlarged drawing at " II " in Fig. 1.
Fig. 5 is the structural schematic diagram of blade assembly.
Fig. 6 is the forward structure schematic diagram of blade.
Fig. 7 is the structural schematic diagram of winged petiole in Fig. 6.
Fig. 8 is the structural schematic diagram of petiole in Fig. 6.
Fig. 9 is the schematic diagram of the section structure of crank block component.
Figure 10 is the structural schematic diagram of impeller hub.
Figure 11 is the positive the schematic diagram of the section structure for being driven box part.
Figure 12 is the left view structural representation of Figure 11.
Figure 13 is the structural schematic diagram for pushing disk component.
Figure 14 is the left view structural representation of Figure 13.
Figure 15 is the structural schematic diagram of adjusting handle component.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawings and examples.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the present embodiment includes cylinder circle 1, blade assembly 2, crank block component 3, impeller wheel
Hub 4, pushes disk component 8, cover board 10, adjusting handle component 14 at transmission box part 7.Transmission box part 7 is installed on impeller hub 4
In space made of enclosing with cover board 10, positioned at the right end of impeller hub axis, referring to Figure 11, Figure 12, being driven box part 7 includes peace
Worm gear case 701 equipped with worm gear 706, worm screw 707, in conjunction with Figure 13, Figure 14, the installation otic placode of 701 left part of worm gear case, which passes through, to be pushed away
On Moving plate ontology 806 after corresponding hollow out hole slot A, the former 402 of impeller hub 4 shown in Figure 10 is fixed on by bolt assembly 9
On；706 inner hole of worm gear is helicitic texture, is engaged with external screw thread screw rod 705 affixed at 806 right side center of disk ontology is pushed,
The axis of screw rod 705 is overlapped with the axis of impeller hub axis.Circumferentially mode is disposed with multiple linear bearings on promotion disk component 8
807, and with the guiding pin 808 that is fixed on 4 former 402 of impeller hub corresponding matching one by one, enable to push disk component 8 along leaf
It is mobile to take turns hub spindle axis；The periphery for pushing disk component 8 is circular ring shape sliding slot.Each crank block component 3 and each blade group
Part 2 is correspondingly connected with, and the sliding block 302 of each crank block component 3 shown in Fig. 9 is along the circumferential direction evenly arranged in circular ring shape sliding slot,
The inner hole of sliding block 302 and the journal engagement of 301 one end of crank connecting link, the other end of crank connecting link 301 and blade group shown in fig. 5
The petiole end axle journal of part 2 is connected by key pin 207；Correspond to blade group on the middle part axle journal and 4 circumference of impeller hub of petiole
Sliding bearing 203 in the uniformly distributed petiole sleeve 202 of part 2 cooperates, and fixed by nut 206 and retaining ring 204, sliding bearing 203
With the inner hole of petiole sleeve 202.The axis for being driven 707 one or both ends of worm screw of box part 7 extends through the pressure of 707 end of worm screw
Lid 2 708, worm screw axle stretch end are equipped with square toes, one end of the inside connecting rod 1401 of adjusting handle component 14 shown in figure 15 and snail
The square toes of bar axle stretch end connect, and the other end of internal connecting rod 1401 is fixed on intermediate connecting sleeve 1402 by bearing 1403,
Gland 1405 is stretched out in the shaft end of internal connecting rod 1401, and shaft end also is provided with square toes；External operation handle 1406 passes through and is welded in cylinder circle 1
The operating stick splicing sleeve 1407 in outside is inserted into inside cylinder circle 1, is connect with the square toes of axis extending portion in internal connecting rod 1401 point.
In the angle for needing to adjust blade, axis extending portion point in internal connecting rod 1401 is inserted into external operation handle 1406
Square toes on, rotate external operation handle 1406, drive worm screw 707 rotate, worm screw 707 as driving link drive worm gear 706 revolve
Turn, worm gear 706 and the driving link as worm drive drive screw rod 705 to make axial linear movement, and drive and push away dynamic disk component 8
Generate axial movement.The crank block component 3 pushed away in 8 circumference sliding slot of dynamic disk component generates swing, due to crank connecting link 301 and leaf
Handle is to be fixedly connected, and petiole can generate rotation because of the swing of crank connecting link 301, to reach the purpose for adjusting blade angle.By
In vaned petiole be all connect by same mechanism with dynamic disk component 8 is pushed away, so, the deflection angle of blade can be complete
Unanimously.
Cover board 10 is bolted on the cover board mounting flange 406 of impeller hub 4 shown in Fig. 10, makes entirely to be driven
Device and the air in runner are completely isolated, play sealing function.
As it is clear from fig. 2 that on cylinder circle 1, the operating position of corresponding adjusting handle component 14 sets angle peep pole above it
Lid 11 and peep pole pressing plate 12, it is convenient that the angle of adjustment is observed；Impeller disk trepanning lid 15 is set thereunder, opens lid
Plate manually pulls blade, make on square toes in internal connecting rod 1401 and external operation handle 1406 to just.In Fig. 2,13 tables
Show pressing plate fixing bolt component.
Referring to Fig. 5 to Fig. 8, blade assembly 2 includes blade 201, petiole sleeve 202, sliding bearing 203.Blade 201 is by winged petiole
20101 and petiole 20102 form, winged petiole 20101 is cast aluminum alloy material, and petiole 20102 is steel material, and the two is using nested
Structure is cast integrally structure.The middle part axle journal of petiole 20102 passes through retaining ring 204, floor clip 205, anti-return nut 206 and leaf
Sliding bearing 203 in sleeve 202 connects.The axle journal of 20102 tail end of petiole is radial through flat key 207 and crank connecting link
212 connections, are connecting axially through retaining ring 208, bolt 209 with crank connecting link 212.
Wherein, the wheel hub ring of petiole sleeve 202 and impeller hub 4 welds, and the winged petiole 20101 and petiole sleeve 202 of blade 201 exist
Axial junction uses labyrinth seal.
Referring to Fig. 9, crank block component 3 includes crank connecting link 301, sliding block 302.The small cephalic par of crank connecting link 301 is
Axle journal is connect by retaining pad 303 and retaining ring 304 with sliding block 302, and sliding block 302 can be rotated freely around necked part.Crank connecting link
301 major part end is the axis hole for being provided with keyway, and the microcephaly of crank connecting link 301 and the central axes of major part are parallel to each other and and leaf
The axis for taking turns hub spindle is vertical.
Referring to Figure 10, impeller hub 4 includes wheel hub ring 401, former 402, reel 404, stiffener plate 405 and cover board installation
Flange 406.Multiple petiole sleeves 202 matched with blade assembly 2 are uniformly welded on wheel hub ring 401, former 402 and cover board installation
Flange 406 is respectively welded on two end faces of wheel hub ring 401, and reel 404 is fixed on the center of former 402 by bolt 403.
Referring to Figure 11, Figure 12, being driven box part 7 includes worm gear case 701, worm gear 706, worm screw 707.Worm gear 706 passes through pressure
Lid 1, bearing 1 and oil sealing 1 are fixed in worm gear case 701, and guarantee worm gear axis and impeller hub axis axis
It is overlapped.706 inner hole of worm gear is nut structure, is engaged with external screw thread screw rod 705 affixed at 8 right end center of disk component is pushed.Snail
Bar 707 is fixed on worm gear case 701 by gland 2 708, bearing 2 709 and oil sealing 2 710, and is hung down with the axis of worm gear 706
Directly.The axis at 707 both ends of worm screw extends through gland 2 708, and axis stretches square head portion and exposes gland body.701 left part of worm gear case is set
There are multiple installation otic placodes outstanding, installation otic placode, which passes through, pushes corresponding hollow out hole slot A on disk component 8, solid by bolt assembly 9
It is scheduled on the former 402 of impeller hub 4.
Referring to Figure 13, Figure 14, pushing away dynamic disk component 8 includes pushing disk ontology 806, sliding slot outer ring plate 801.Push disk ontology
806 be broadside flat-top " carnival hat " structure, and flat part is installed between impeller hub axis right part and worm gear case left part,
A circle convex portion is machined on its broadside edge, sliding slot outer ring plate 801 is fixed on the convex portion by screw 802, thus
Form the open circumferential circular ring shape sliding slot in outside.Push disk ontology 806 flat-top on be provided with several number and shape with
Worm gear case installs the corresponding hollow out hole slot A of otic placode.It is provided on the inside of circular ring shape sliding slot on pushing 806 broadside of disk ontology more
A circular hole is welded with linear bearing fixed block 805 on the broadside of circular hole side, and linear bearing 807, which is fixed on, pushes disk ontology 806
In the hole on circular hole and linear bearing fixed block 805 on broadside, and is limited and fixed with ring washer 809 by axis.In impeller hub 4
Former 402 on correspond to the position of linear bearing 807 and be fixed with guiding pin 808, guiding pin 808 and linear bearing 807
Inner hole composition be slidably matched.It pushes and is fixed with external screw thread screw rod 705 at the right side axle center of disk ontology 806.
Referring to Figure 15, manipulator's wheel component 14 includes internal connecting rod 1401, intermediate connecting sleeve 1402, external operation handle
1406 and operating stick splicing sleeve 1407.Intermediate connecting sleeve 1402 is welded on the outside of impeller hub 4, in 1402 hole of intermediate connecting sleeve
Axis is overlapped with the axis of worm screw 707.One end of internal connecting rod 1401 and the square toes of worm end connect, and the other end passes through axis
It holds 1403, oil sealing 1404 and gland 1405 is fixed on intermediate connecting sleeve 1402, and the square toes of its end is made to expose gland 1405
Outside.One end of external operation handle 1406 is that internal square head structure connects after the inner hole of operating stick splicing sleeve 1407 with inside
The square toes of 1401 exposed end portion of extension bar connect.Operating stick splicing sleeve 1407 is welded on cylinder circle 1, the center line of inner hole and inside
The center line of connecting rod is overlapped.Handle hole gland 1408 is being operated after external operation handle 1406 exits by threaded engagement
On bar splicing sleeve 1407, sealing function is played.
For Counter rotating axial flow Fan, for the opening convenient for operation external operation handle in same direction, wheel hub, operating stick
The welding direction and external operation handle of splicing sleeve 1407 are contrary with the internal connection of connecting rod.Alternatively, operating stick supports
Set 1407 is symmetrically welded at cylinder circle two sides, and externally operated switch lever can be connect with internal connecting rod from different directions.
Compared with the following table 1 is the performance between the invention patent device and applicant patent applied for early period device
Table.
The performance of the outer tunable arrangement of 1 two kinds of machines of table compares
Claims (7)
1. primary integrally-regulated device outside a kind of axial-flow fan blade angle machine, it is characterised in that: it includes cylinder circle, blade group
Part, impeller hub, transmission box part, pushes disk component, cover board, adjusting handle component at crank block component；It is driven box part peace
In space made of enclosing loaded on impeller hub and cover board, positioned at one end of impeller hub axis, it includes being equipped with worm gear, snail
The worm gear case of bar, bearing, the installation otic placode of worm gear case end pass through bolt after corresponding hollow out hole slot on promotion disk component
Component is fixed on the former of impeller hub；Worm gear inner hole is helicitic texture, with the external thread wire for pushing disk component end affixed
Bar engagement, the axis of screw rod are overlapped with impeller hub axis axis；Promotion disk component is a broadside flat-top carnival hat structure, flat top portion
Divide and be installed between impeller hub shaft end portion and worm gear case end, broadside is equipped with several circular holes and passes through linear bearing and installs
In on guiding pin corresponding on impeller hub former, enable push disk component moved along impeller hub axis axis；Push pan portion
The broadside edge of part is equipped with circular ring shape sliding slot；Each crank block component is correspondingly connected with each blade assembly, each slide crank
The sliding block of block assembly is along the circumferential direction evenly arranged in the circular ring shape sliding slot for pushing disk component, sliding block inner hole and crank block component
The journal engagement of crank connecting link one end, the other end of crank connecting link and the petiole end axle journal of blade assembly are connected by key pin；
The sliding bearing corresponded in the uniformly distributed petiole sleeve of blade assembly on the middle part axle journal and impeller hub circumference of petiole cooperates, and leads to
It crosses nut and retaining ring is fixed, the inner hole of sliding bearing and petiole sleeve；The axis for being driven the worm screw one or both ends of box part is stretched
Across the gland of worm end, worm screw axle stretch end is equipped with square toes, one end of the inside connecting rod of adjusting handle component and worm shaft
The square toes connection at end is stretched, the other end of internal connecting rod is fixed on intermediate connecting sleeve by bearing, the shaft end of internal connecting rod
Gland is stretched out, shaft end also is provided with square toes；External operation handle passes through the operating stick splicing sleeve being welded on the outside of cylinder circle, is inserted into cylinder circle
It is connect with the square toes of axis extending portion in internal connecting rod point.
2. primary integrally-regulated device outside axial-flow fan blade angle machine according to claim 1, it is characterised in that: described
Blade assembly includes blade, petiole sleeve, sliding bearing；Blade is made of winged petiole and petiole, and winged petiole is cast aluminum alloy material, petiole
For steel material, the two is cast integrally using nested structure；The middle part axle journal of petiole passes through retaining ring, floor clip, retaining spiral shell
Mother connect with the sliding bearing in petiole sleeve；The axle journal of petiole end is being connect radial through flat key with crank connecting link, in axial direction
It is connected by retaining ring, bolt and crank connecting link.
3. primary integrally-regulated device outside axial-flow fan blade angle machine according to claim 1, it is characterised in that: described
Crank block component includes crank connecting link and sliding block；The small cephalic par of crank connecting link is axle journal, passes through retaining pad, retaining ring and sliding block
Connection, sliding block can be rotated freely around axle journal；The major part end of crank connecting link is the axis hole for being provided with keyway；The microcephaly of crank connecting link with
The central axes of major part are parallel to each other and vertical with impeller hub axis axis.
4. primary integrally-regulated device outside axial-flow fan blade angle machine according to claim 1, it is characterised in that: described
Impeller hub includes wheel hub ring, former, reel, stiffener plate, cover board mounting flange；Multiple petiole sleeves matched with blade assembly
Uniformly it is welded on wheel hub ring；Former and cover board mounting flange are respectively welded on two end faces of wheel hub ring；Reel passes through spiral shell
Bolt is fixed on former center.
5. primary integrally-regulated device outside axial-flow fan blade angle machine according to claim 1, it is characterised in that: described
Being driven box part includes worm gear case, worm gear, worm screw；Worm gear is fixed in worm gear case by gland one, bearing one, oil sealing one, snail
Wheel axis is overlapped with impeller hub axis axis；Worm gear inner hole is nut structure, with the external thread wire for pushing disk component end affixed
Bar engagement；Worm screw is fixed on worm gear case by gland two, bearing two, oil sealing two, and vertical with worm gear axis；Worm screw both ends
Axis extends through gland two, and axis stretches square head portion and exposes two ontology of gland；Worm gear case end is equipped with multiple installation otic placodes outstanding, peace
Otic placode is filled after corresponding hollow out hole slot on promotion disk component, is fixed on the former of impeller hub by bolt assembly.
6. primary integrally-regulated device outside axial-flow fan blade angle machine according to claim 1, it is characterised in that: described
Pushing disk component includes pushing disk ontology, sliding slot outer ring plate；Promotion disk ontology is a broadside flat-top carnival hat structure, broadside edge
Part forms the open circular ring shape sliding slot in outside by screw with sliding slot outer ring plate；It is provided on the flat-top of disk ontology if pushing
Dry number and shape hollow out hole slot A corresponding with worm gear case installation otic placode；It is sliding by circular ring shape on pushing disk ontology broadside
It is provided with multiple circular holes on the inside of slot, linear bearing fixed block is welded on the broadside of circular hole side, linear bearing is fixed on promotion
In the hole on circular hole and linear bearing fixed block on disk ontology broadside, and limited by axis with ring washer；In the width of impeller hub
Position on plate corresponding to linear bearing is fixed with guiding pin, and guiding pin is slidably matched with linear bearing inner hole composition；It pushes away
External screw thread screw rod is fixed at the end face axle center of Moving plate ontology.
7. primary integrally-regulated device outside axial-flow fan blade angle machine according to claim 1, it is characterised in that: described
Adjusting handle component includes internal connecting rod, intermediate connecting sleeve, external operation handle, operating stick splicing sleeve；Intermediate connecting sleeve weldering
It connects on impeller hub, intermediate connecting sleeve hole central axes are overlapped with worm axis；One end of internal connecting rod and worm end
Square toes connection, the other end are fixed on intermediate connecting sleeve by bearing, oil sealing, gland, and the square toes of its end is made to expose gland
Outside；One end of external operation handle is internal square head structure, exposed with internal connecting rod after the inner hole of operating stick splicing sleeve
The square toes of end connect；Operating stick splicing sleeve is welded on cylinder circle, the center line weight of the center line of inner hole and internal connecting rod
It closes；Handle hole gland is after external operation handle exits, through threaded engagement on operating stick splicing sleeve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910879976.3A CN110500319A (en) | 2019-09-18 | 2019-09-18 | Primary integrally-regulated device outside axial-flow fan blade angle machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910879976.3A CN110500319A (en) | 2019-09-18 | 2019-09-18 | Primary integrally-regulated device outside axial-flow fan blade angle machine |
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| CN110500319A true CN110500319A (en) | 2019-11-26 |
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| CN201910879976.3A Pending CN110500319A (en) | 2019-09-18 | 2019-09-18 | Primary integrally-regulated device outside axial-flow fan blade angle machine |
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| CN116972015A (en) * | 2023-08-01 | 2023-10-31 | 淄博金河风机有限公司 | Axial flow fan capable of automatically adjusting blade angle |
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