CN105737579B - Heat-pump-type tail heat utilization penetrates adverse current dryer - Google Patents
Heat-pump-type tail heat utilization penetrates adverse current dryer Download PDFInfo
- Publication number
- CN105737579B CN105737579B CN201610123120.XA CN201610123120A CN105737579B CN 105737579 B CN105737579 B CN 105737579B CN 201610123120 A CN201610123120 A CN 201610123120A CN 105737579 B CN105737579 B CN 105737579B
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- Prior art keywords
- fan
- impeller
- air
- clip
- shaft
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
- F26B15/18—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by endless belts
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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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
- F04D29/054—Arrangements for joining or assembling shafts
-
- 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
- F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
-
- 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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
Abstract
The invention discloses a kind of heat-pump-type tail heat utilization to penetrate adverse current dryer, the draught hood connection air-introduced machine of dryer, and air-introduced machine empties after the evaporator of cyclone dust collectors connection heat pump；The evaporator of heat pump connects main frame through refrigerant pipe, and main frame connects condenser through refrigerant pipe；The condensed device in outlet side of air blower is connected into fan housing；The blade arrangement of the draught fan impeller can clear up dust in time using centrifugal force, avoid the occurrence of security incident into impeller Axial and radial, centrosymmetric emitting shape.The present invention not only increases drying efficiency, realizes energy-saving and emission-reduction, more importantly significantly take on a new look the dismounting technology of air-introduced machine, it is set simply to eliminate pressure of the similar nut member to screw shaft shoulder end face when disassembling, effectively solve the problems, such as that air-introduced machine Screw assembly continuous auto lock under load effect is not easy to remove, it is particularly suitable for the convenient dismounting after large fan screw-threaded coupling, effect is especially pronounced.
Description
Technical field
The present invention relates to a kind of dryer, and referring specifically to air-introduced machine will not laying dust and easy to disassemble and maintenance heat-pump-type tail heat
Using penetrating adverse current dryer.
Background technology
Drying of the drying temperature less than 60 degrees Celsius is typically referred to as low temperature drying by people, and low temperature drying is widely used in making
The drying of the heat sensitive materials such as species, Chinese medicine, biological products.Hot air type drier due to technology maturation, it is adaptable,
Operating cost is low, highly reliable, is still one of preferred unit of low temperature drying.Low temperature drying due to exhaust emissions temperature compared with
It is low, thus it is more difficult enter end of line heat utilization.If can be realized during hot air type low temperature drying to material penetrate and it is inverse
Stream drying, and tail heat is effectively reclaimed, then it is especially important for improving drying efficiency and realizing that energy-saving and emission-reduction all have
Meaning.
Air-introduced machine is the key equipment of heated air drier, and air-introduced machine is generally centrifugal blower, air-introduced machine it is continuous, steady
Calmly, reliably working is very crucial to dryer, because the occasion that dryer uses all contains certain dust, air-introduced machine work mostly
When making, air-flow during the draught fan impeller of high speed rotation by that can be departed from air-flow phase and be deposited due to centrifugation, dust granule
It is attached on draught fan impeller.
Draught fan impeller rotating speed is general all higher, as long as can all be accumulated after working long hours with the presence of micro dust in air-flow
More dust is tired out, so as to change the balance of draught fan impeller rotation, if draught fan impeller does not have self purification not have to dust yet
Have timely cleaning, will static state cumulative and that draught fan impeller is altered in steps and dynamic equilibrium, so as to produce vibration.Once
The dust that running into has part hardened, which is vibrated, to come off, and the dynamic rotary away from air-introduced machine will balance, then produce strong immediately
Vibration, this may trigger serious personnel and equipment safety accident.
On the other hand, the structure of common blower fan is typically all that fan shaft one end is draught fan impeller, and the other end is electronic motor-driven
Power input, often it is shaft coupling.Because blower fan is typically all continuous operation for a long time, so bearing is fragile, bearing one is changed
As need first to dismantle the shaft coupling of draught fan impeller and the other end, but the assembling of existing fan shaft and draught fan impeller, shaft coupling belongs to
Typical axle, hole interference fit, and carrying transmission is carried out by key.It is higher to be interference fitted usual requirement on machining accuracy, and
Realize torque bearing function with reference to key connection, assembling is general all to be needed to load very big extruding force, if without professional equipment with
Instrument, dismounting are all very inconvenient.
Threaded connection has that processing is simple, assembling is convenient, while also has unidirectional carrying torque functions, therefore, in blower fan
If axle is threadedly coupled with that can be used in the connection in hole and realizes transmission, it is all more convenient to be allowed to assembly or disassembly, then possesses higher
Practical value and market application foreground.In the axle of reality coordinates motion thread assembling with hole, in order to realize big carrying work(
Energy demand, the scantling of thread spindle similar nut member with what is matched is all larger, is screwed in assembling often all also very light
Pine is convenient, and can realize the automatic constantly locking of bearing capacity in use, thus very reliable, but in dismounting, assembling
Often very tight, dismounting is very difficult, if simple easy removal can be realized under these conditions, it appears particularly important.
Therefore, if a kind of dryer can be designed, its blower fan is cleared up dust automatically, and dismantle and overhaul all
It is very convenient, all there is especially important meaning for promoting the technological progress of dryer and preventing security incident.
The content of the invention
The technical problem to be solved in the present invention is exactly overcome the deficiencies in the prior art, there is provided a kind of blower fan can not only be automatically clear
Dust is managed, and all very easily the heat utilization of heat-pump-type tail penetrates adverse current dryer for dismounting and maintenance.
For overcome the deficiencies in the prior art, the present invention takes following technical scheme：
A kind of heat-pump-type tail heat utilization penetrates adverse current dryer, including drying body chassis and air-introduced machine, it is characterised in that；Dry
Dry box body both ends are respectively equipped with draught hood and enter fan housing, and draught hood connection air-introduced machine, air-introduced machine connects heat through cyclone dust collectors
Emptied after the evaporator of pumping system；The evaporator of heat pump connects main frame through refrigerant pipe, and main frame connects condenser through refrigerant pipe；
The condensed device in outlet side of air blower is connected into fan housing；There are drive roll and driven voller to drive sieve plate steel band in the drying body chassis
Pass through, drying body chassis are divided into upper case body and lower case body by sieve plate steel band, and multiple vertical cloth are provided with upper and lower box body
Upper and lower box body is isolated into some units by the soft spacer put, and soft spacer gently presses material to block air-flow completely but do not influence material
Conveying, aerofoil fan is provided with unit and upper fan is downward, lower fan is upward, after opening aerofoil fan, air-flow can be forced through
Sieve plate steel band and its material of top, realize penetration counter-current drying；The air-introduced machine includes draught fan impeller, bearing, fan shaft
And shaft coupling, shaft coupling use Screw assembly with fan shaft and draught fan impeller with fan shaft, thread rotary orientation is with holding with work
Carry the direction of auto lock；Draught fan impeller is similar to nut by being threadedly coupled with fan shaft and reversing impeller plain washer, copper-lead
Composite pad compresses, and draught fan impeller forms screw thread with fan shaft one end and is rigidly connected；Clip part is inserted in the fan shaft other end, then will
Shaft coupling plain washer is inserted in fan shaft, is then threaded into the shaft coupling of similar nut, then rationally all locking, makes clip part and class
Also form and be rigidly connected with the fan shaft other end like the shaft coupling of nut；The copper-lead reverse composite pad be punch process into copper
Pad, it is with fin outside, then in the compound fusible lead alloy packing ring in copper packing both sides；The clip part is by clip, clip ear, clip
Pad and bolt are formed, and clip section is wedge shape, is made up of two semicircular ring clip bodies and opens elliptical aperture to opening structure, clip pad to increase
Strong axial elasticity, clip pad both ends are planar structure, are easy to coordinate with shaft shoulder plane, clip is passed through on clip ear using bolt
Hole, it is assemblied on clip pad and is integrally formed.
The draught fan impeller includes impeller backboard, impeller panel, primary blades and auxiliary blade, and primary blades are flat panel contours
And it is arranged to impeller Axial and radial, centrosymmetric emitting shape；Primary blades connect impeller panel and are welded into impeller with impeller backboard
Main body；Impeller panel is provided with air inlet, and impeller backboard connects into firm one by welding with primary blades inner edge with blower fan axle bed,
Blower fan axle bed is connected by axis hole and fan shaft；Blower fan auxiliary blade is formed with impeller panel, backboard, primary blades
Three-legged structure.
The sieve plate steel band both ends are respectively equipped with feed hopper and discharge bucket, realize the charging drying of serialization.
When equipment works, Homogeneous charge is carried out by feed hopper, passed through with sieve plate steel band inside dryer, opens aerofoil fan
Afterwards, due to the buffer action of soft spacer, air-flow can only be forced through sieve plate steel band and its material of top, carry out penetration adverse current
Dry；Draught hood connects air-introduced machine air inlet, and evaporator fin will be introduced after damp and hot tail gas cyclone dust removal and completes tail heat utilization, warp
Heat pump host work is crossed, convey refrigerant by refrigerant pipe discharges heat in fin condenser, and the air that air blower blasts is in wing
On piece condenser after heat exchange heating, enter dryer by entering fan housing, complete the drying of penetration adverse current and tail heat utilization.
In use, because the major-minor sharf radial center of blower fan is symmetrical, blade revolves the draught fan impeller of the present invention in high speed
When turning, blade surface has powerful eccentric surfaces self purification under powerful centrifugal action, and dust can not adhere to and can be real
Existing Quick spin separation, dynamic, the static balancing of impeller are not interfered with, be adapted to big flow, high-power, anti-laying dust air-flow conveying.
The triangle Axial and radial centrosymmetric structure of impeller panel, backboard, primary blades, auxiliary blade, the wind for being connected it
Machine backboard relative torsion anti-with panel, extruding rigidity are extremely strong, can prevent blower fan primary blades connection backboard root completely because of carrying
Moment and caused by fatigue fracture, can also obtain higher intensity with relatively thin board making, ensure stable, reliable
Use, the Impeller Design of this spline structure is particularly suitable for thin plate making, is easy to save material, is advantageous to light and handyization of equipment.
When air-introduced machine need to be dismantled and overhauled, composite pad, clip part are reversed using the copper-lead of innovative design, by convenient
Operation, pressure of the similar nut member to screw shaft shoulder end face can be simply eliminated, at this moment nut and screw part are outstanding in unloading
Dummy status, taking apart becomes simple and convenient as Screw assembly, for solving Screw assembly constantly automatic lock under load effect
Tightly, technical barrier not easy to remove, in large fan shaft componentses screw-threaded coupling field, such function is particularly important.
When draught fan impeller need dismantle but it is very difficult when, using oxy arc to copper-lead reverse Composition spacer among
Copper packing carries out oxy arc heating, and because the conductivity of heat of copper is fabulous, and the fusing point of metal is relatively low, and metal is heated after heating
Melt, the compression tensile force of draught fan impeller and shaft shoulder step is completely eliminated, and draught fan impeller is in complete vacant state, especially
It is readily disassembled.
When the joint member of similar nut need to dismantle but it is very difficult when, bolt is pulled down with spanner, because of two
It is fast wedge shape to opening structure and clip body section that semicircular ring clip body, which is, and the instrument that one end can be used flat connects from two clip ears
Engagement is held together place and easily pried open, and clip easy removal is got off, clip pad returns to relaxed state, makes joint member and shaft shoulder end face
Locking after tensile force be completely eliminated, the joint member of similar nut is in complete vacant state, be especially susceptible to tear open
Unload.
Compared with prior art, beneficial effects of the present invention also reside in the dismounting technology for the air-introduced machine that significantly taken on a new look, energy
Effectively solve the problems, such as that air-introduced machine Screw assembly continuous auto lock under load effect is not easy to remove, be particularly suitable for large fan
Convenient dismounting after screw-threaded coupling, effect is especially pronounced, be mainly reflected in it is following some：
1st, do not change the feature of Screw assembly, need to only add Pot metal composite pad, clip pad and clip, cost is low also special
It is not easily achieved；2nd, Pot metal composite pad, clip pad can play good Stress decomposition, the carrying energy of effective enhancing structure
Power, clip pad, which opens elliptical aperture, can effectively strengthen clip pad axial elasticity；3rd, cleverly heated with Pot metal composite pad very much
Design and the Assembly And Disassembly of clip, the tensioning of axial accessory and the function that relaxes are realized, it is effectively quick to eliminate similar nut locking
Tensile force, realize that the component rapid and convenient of especially tight similar nut member Screw assembly is dismantled；4th, clip pad and clip
Wedge-shaped assembling structure is easy to repeatedly quick assembly and disassembly to use.
Brief description of the drawings
Fig. 1 is the planar structure schematic diagram of the present invention
Fig. 2 is the dimensional structure diagram of air-introduced machine shafting.
Fig. 3 is the planar structure schematic diagram of air-introduced machine shafting.
Fig. 4 is the dimensional structure diagram of draught fan impeller.
Fig. 5 is the cross-sectional view of draught fan impeller.
Fig. 6 is the structural representation that copper-lead reverses composite pad.
Fig. 7 is the assembling structure schematic diagram of clip part.
Fig. 8 is the fractionation structural representation of clip part.
Fig. 9 is the structural representation of clip pad.
Each label represents in figure：
A, air-introduced machine；1st, drive roll；2nd, feed hopper；3rd, sieve plate steel band；4th, soft dividing plate；5th, aerofoil fan；6th, draught hood；
11st, drying body chassis；12nd, fan housing is entered；13rd, driven roll；14th, discharge bucket；21st, cyclone dust collectors；22nd, evaporator；23rd, it is vented
Pipe；24th, refrigerant pipe；25th, heat pump main frame；26th, condenser；27th, air blower；31st, primary blades；32nd, auxiliary blade；33rd, impeller enters
Air port；34th, blower fan axle bed；36th, axis hole；37th, impeller backboard；38th, impeller panel；41st, draught fan impeller；42nd, impeller plain washer；
43rd, copper-lead reverses composite pad；44th, bearing；45th, fan shaft；46th, clip part；47th, shaft coupling plain washer；48th, shaft coupling；51、
Copper packing and fin；52nd, fusible lead alloy packing ring；61st, clip；62nd, clip ear；63rd, clip pad；64th, slotted eye；65th, bolt.
Embodiment
In conjunction with accompanying drawing, the present invention is further elaborated with.
As shown in Figure 1, Figure 2, the heat utilization of heat-pump-type tail shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9 penetrates adverse current and dried
Machine, including drying body chassis 11 and air-introduced machine A, the both ends of drying body chassis 11 are respectively equipped with draught hood 6 and enter fan housing 12, draught hood
Emptied after the evaporator 22 that 6 connection air-introduced machine A, air-introduced machine A connect heat pump through cyclone dust collectors 21；The evaporation of heat pump
Device 22 connects main frame 25 through refrigerant pipe 24, and main frame 25 connects condenser 26 through refrigerant pipe 24；The outlet side of air blower 27 is condensed
Device 26 is connected into fan housing 12；There are drive roll 1 and driven voller 13 to drive sieve plate steel band 3 to pass through in the drying body chassis 11, sieve plate
Drying body chassis 11 are divided into upper case body and lower case body by steel band 3, be provided with upper and lower box body it is multiple be vertically arranged it is soft
Upper and lower box body is isolated into some units by dividing plate 4, and soft spacer 4 gently presses material to block air-flow completely but do not influence material conveying,
Aerofoil fan 5 is provided with unit and upper fan is downward, lower fan is upward, after opening aerofoil fan 5, air-flow can be forced through sieve plate
Steel band 3 and its material of top, realize penetration counter-current drying；The air-introduced machine A includes draught fan impeller 41, bearing 44, blower fan
Axle 45 and shaft coupling 48, shaft coupling 48 use Screw assembly, screw thread rotation with fan shaft 45 and draught fan impeller 41 with fan shaft 45
To be with work with carrying auto lock direction；Draught fan impeller 41 is similar to nut by being threadedly coupled with fan shaft 45 and by leaf
Wheel plain washer 42, copper-lead reverse composite pad 43 and compressed, and draught fan impeller 41 forms screw thread with the one end of fan shaft 45 and is rigidly connected；Clip
Part 46 is inserted in the other end of fan shaft 45, then shaft coupling plain washer 47 is inserted in into fan shaft 45, is then threaded into the connection of similar nut
Axle device 48, then rationally all locking, make clip part 46 and the shaft coupling 48 of similar nut also be formed with the other end of fan shaft 45
It is rigidly connected；The copper-lead reverse composite pad 43 be punch process into copper packing, it is outer to be with fin 51, then is answered in copper packing both sides
Close fusible lead alloy packing ring 52；The clip part 46 is made up of clip 61, clip ear 62, clip pad 63 and bolt 65, clip
61 sections are wedge shape, are made up of two semicircular ring clip bodies to opening structure, and clip pad 63 opens elliptical aperture 64 to strengthen axial elasticity,
It is planar structure that clip, which pads 63 both ends, is easy to coordinate with shaft shoulder plane, and clip, through the hole on clip ear 62, is filled using bolt 65
Fit over and be integrally formed on clip pad 63.
The draught fan impeller 41 includes impeller backboard 37, impeller panel 38, primary blades 31 and auxiliary blade 32, primary blades
31 are flat panel contours and are arranged to impeller Axial and radial, centrosymmetric emitting shape；Primary blades 31 connect impeller panel 38 and and leaf
Wheel backboard 37 is welded into impeller bodies；Impeller panel 38 is provided with air inlet 33, and impeller backboard 37 passes through weldering with the inner edge of primary blades 31
Connect with fan shaft 45 and connect into firm one, blower fan axle bed 34 is connected by axis hole 36 and fan shaft 45；Blower fan
Auxiliary blade 32 forms three-legged structure with impeller panel 38, backboard 37, primary blades 31.
The both ends of sieve plate steel band 3 are respectively equipped with feed hopper 2 and discharge bucket 14, realize the charging drying of serialization.
When equipment works, Homogeneous charge is carried out by feed hopper 2, passed through with sieve plate steel band 3 inside dryer, opens axle stream wind
After fan 5, due to the buffer action of soft spacer 4, air-flow can only be forced through sieve plate steel band 3 and its material of top, be penetrated
Formula counter-current drying；Draught hood 6 connects air-introduced machine A air inlets, is completed evaporator fin 22 is introduced after damp and hot tail gas cyclone dust removal
Tail heat utilization, worked by heat pump main frame 25, refrigerant release heat, air blast in fin condenser 26 are conveyed by refrigerant pipe 24
The air that machine 27 blasts is exchanged heat on fin condenser 26 after heating, is entered dryer 11 by entering fan housing 12, is completed penetration
Adverse current drying and tail heat utilization.
In use, because the major-minor sharf radial center of blower fan is symmetrical, blade revolves the draught fan impeller of the present invention in high speed
When turning, blade surface has powerful eccentric surfaces self purification under powerful centrifugal action, and dust can not adhere to and can be real
Existing Quick spin separation, dynamic, the static balancing of impeller are not interfered with, be adapted to big flow, high-power, anti-laying dust air-flow conveying.
The triangle Axial and radial centrosymmetric structure of impeller panel 38, backboard 37, primary blades 31, auxiliary blade 32, makes its institute
The blower fan backboard relative torsion anti-with panel of connection, extruding rigidity are extremely strong, can prevent blower fan primary blades connection backboard root completely
Portion because carrying Moment and caused by fatigue fracture, higher intensity can be also obtained with relatively thin board making, ensure
Stable, reliable to use, the Impeller Design of this spline structure is particularly suitable for thin plate making, is easy to save material, is advantageous to the light of equipment
Skilfulization.
When air-introduced machine A need to be dismantled and overhauled, composite pad 43, clip part 46 are reversed using the copper-lead of innovative design, is led to
Operation readiness is crossed, can simply eliminate pressure of the similar nut member to screw shaft shoulder end face, at this moment nut is in screw part
Unload vacant state, taking apart becomes simple and convenient as Screw assembly, for solve Screw assembly under load effect constantly
Auto lock, technical barrier not easy to remove, in large fan shaft componentses screw-threaded coupling field, such function seems particularly
It is important.
When draught fan impeller 41 need dismantle but it is very difficult when, using oxy arc to copper-lead reverse Composition spacer among
Copper packing carry out oxy arc heating, because the conductivity of heat of copper is fabulous, and the fusing point of metal is relatively low, after heating metal by
Thermal melting, the compression tensile force of draught fan impeller 41 and shaft shoulder step are completely eliminated, and draught fan impeller is in complete vacant state,
It is especially susceptible to dismantle.
When the joint member of similar nut need to dismantle but it is very difficult when, bolt is pulled down with spanner, because of two
It is fast wedge shape to opening structure and clip body section that semicircular ring clip body, which is, and the instrument that one end can be used flat connects from two clip ears
Engagement is held together place and easily pried open, and clip easy removal is got off, clip pad returns to relaxed state, makes joint member and shaft shoulder end face
Locking after tensile force be completely eliminated, the joint member of similar nut is in complete vacant state, be especially susceptible to tear open
Unload.
Above-mentioned simply presently preferred embodiments of the present invention, not makees any formal limitation to the present invention.It is any to be familiar with sheet
The technical staff in field, in the case where not departing from technical solution of the present invention scope, all using the technology contents of the disclosure above
Many possible changes and modifications are made to technical solution of the present invention, or are revised as the equivalent embodiment of equivalent variations.Therefore, it is all
It is the content without departing from technical solution of the present invention, any is simply repaiied to made for any of the above embodiments according to the technology of the present invention essence
Change, equivalent variations and modification, all should fall in the range of technical solution of the present invention protection.
Claims (2)
1. a kind of heat-pump-type tail heat utilization penetrates adverse current dryer, including drying body chassis and air-introduced machine, it is characterised in that；Drying
Box body both ends are respectively equipped with draught hood and enter fan housing, and draught hood connection air-introduced machine, air-introduced machine connects heat pump through cyclone dust collectors
Emptied after the evaporator of system；The evaporator of heat pump connects main frame through refrigerant pipe, and main frame connects condenser through refrigerant pipe；Drum
The condensed device in outlet side of blower fan is connected into fan housing；There are drive roll and driven voller to drive sieve plate steel band to wear in the drying body chassis
Cross, drying body chassis are divided into upper case body and lower case body by sieve plate steel band, and multiple be vertically arranged is provided with upper and lower box body
Soft spacer upper and lower box body is isolated into some units, soft spacer gently presses material to block air-flow completely but not influence material defeated
Send, aerofoil fan is provided with unit and upper fan is downward, lower fan is upward, after opening aerofoil fan, air-flow can be forced through sieve
Slab band and its material of top, realize penetration counter-current drying；The air-introduced machine include draught fan impeller, bearing, fan shaft and
Shaft coupling, shaft coupling use Screw assembly with fan shaft and draught fan impeller with fan shaft, and thread rotary orientation is with work and carrying
The direction of auto lock；Draught fan impeller is similar to nut by being threadedly coupled and reversing impeller plain washer, copper-lead multiple with fan shaft
Close pad to compress, draught fan impeller forms screw thread with fan shaft one end and is rigidly connected；Clip part is inserted in the fan shaft other end, then will connection
Axle device plain washer is inserted in fan shaft, is then threaded into the shaft coupling of similar nut, then rationally all locking, makes clip part and similar
The shaft coupling of nut is also formed with the fan shaft other end and is rigidly connected；The copper-lead reverse composite pad be punch process into copper
Pad, it is with fin outside, then in the compound fusible lead alloy packing ring in copper packing both sides；The clip part is by clip, clip ear, clip
Pad and bolt are formed, and clip section is wedge shape, is made up of two semicircular ring clip bodies and opens elliptical aperture to opening structure, clip pad to increase
Strong axial elasticity, clip pad both ends are planar structure, are easy to coordinate with shaft shoulder plane, clip is passed through on clip ear using bolt
Hole, it is assemblied on clip pad and is integrally formed.
2. heat-pump-type tail heat utilization according to claim 1 penetrates adverse current dryer, it is characterised in that：The air inducing
Machine impeller includes impeller backboard, impeller panel, primary blades and auxiliary blade, and primary blades are flat panel contours and are arranged to the impeller diameter of axle
To, centrosymmetric emitting shape；Primary blades connect impeller panel and are welded into impeller bodies with impeller backboard；Impeller panel is provided with
Air inlet, impeller backboard connect into firm one by welding with primary blades inner edge with blower fan axle bed, and blower fan axle bed passes through axis hole
It is connected with fan shaft；Blower fan auxiliary blade forms three-legged structure with impeller panel, backboard, primary blades.
Priority Applications (1)
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| CN201610123120.XA CN105737579B (en) | 2016-03-05 | 2016-03-05 | Heat-pump-type tail heat utilization penetrates adverse current dryer |
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| CN201610123120.XA CN105737579B (en) | 2016-03-05 | 2016-03-05 | Heat-pump-type tail heat utilization penetrates adverse current dryer |
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| CN105737579B true CN105737579B (en) | 2018-02-09 |
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| CN2308745Y (en) * | 1997-01-21 | 1999-02-24 | 曹洪海 | Vertical slurry pump |
| CN2487909Y (en) * | 2000-11-23 | 2002-04-24 | 季关钰 | Anti-theft locking fastening part |
| CN201269222Y (en) * | 2008-10-15 | 2009-07-08 | 安徽三联泵业股份有限公司 | Valve type water pump impeller stripping ring |
| CN203784067U (en) * | 2014-03-20 | 2014-08-20 | 邵传江 | Reusable anti-theft bolt |
| CN105021007B (en) * | 2015-08-14 | 2017-11-10 | 安徽欧瑞达电器科技有限公司 | A kind of heat-pump-type tail heat utilization penetrates adverse current dryer |
| CN105135101B (en) * | 2015-09-17 | 2018-03-02 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of locking device for pipe joint |
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