CN103671753B - The positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor - Google Patents

The positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor Download PDF

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Publication number
CN103671753B
CN103671753B CN201310711536.XA CN201310711536A CN103671753B CN 103671753 B CN103671753 B CN 103671753B CN 201310711536 A CN201310711536 A CN 201310711536A CN 103671753 B CN103671753 B CN 103671753B
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CN
China
Prior art keywords
change gear
break
axle
positive
negative
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Expired - Fee Related
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CN201310711536.XA
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Chinese (zh)
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CN103671753A (en
Inventor
王久祥
张庆鹏
王海涛
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Locating in Dalian Heng Machinery Manufacturing Co. Ltd.
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DALIAN JINGGONG MACHINERY EQUIPMENT Co Ltd
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Priority to CN201310711536.XA priority Critical patent/CN103671753B/en
Publication of CN103671753A publication Critical patent/CN103671753A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/10Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with one or more one-way clutches as an essential feature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00Freewheels or freewheel clutches
    • F16D41/06Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/069Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by pivoting or rocking, e.g. sprags
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/12Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/14Gearings for reversal only
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/0006Vibration-damping or noise reducing means specially adapted for gearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/029Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/031Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes

Abstract

The invention belongs to vacuum compressor, relate to the positive and negative deviator of a kind of circulating positive and negative break-in speed change vacuum compressor;It is characterized in that: on the break-in main shaft more than break-in case inner bottom, sequentially install the third change gear of hollow, fourth change gear and second change gear;The both sides dress of the third change gear of its hollow is by positive and negative two side steerings of Synchronous Transmission Component driver, each of which side steering is made up of change gear axle, a change gear, axle sleeve, change gear axle scroll key, spring duckbilled key asembly, b change gear, upper and lower end cap, freewheel clutch and freewheel clutch set, by two duckbilled key asemblies on positive and negative two change gear axles, the cooperating of left and right swing of two change gear axle scroll keys and commutator assembly, it is achieved the forward and reverse break-in of two change gear axles.The present invention is not only novel in design unique, compact conformation, both not uncoupling during transmission, and the most forward and reverse break-in is the most unimpeded, and has dependable performance and the feature such as stable.

Description

The positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor
Technical field
The invention belongs to vacuum compressor, particularly to a kind of circulating positive and negative break-in speed change vacuum compressor Positive and negative deviator.
Background technology
At present, the mechanical driving device of such as reciprocating vacuum pump and reciprocating compressor in engineering goods, Its structure mostly uses motor, V belt translation to drive the drive mechanism of bent axle and eccentric wheel type.By using Slide block and connecting rod coordinate promotion piston to realize moving back and forth, owing to being restricted by the above-mentioned kind of drive, and its cylinder Body distribution form can only be V-type, fan or twin-tub type in parallel.Owing to bent axle exists week with eccentric transmission Phase property flex point or dead point i.e. export the dead point that torque is " 0 ";Vibrations will necessarily be caused during transmission and make an uproar Sound, and bent axle and eccentric gearing do not have reinforcement coefficient;So power consumption is the biggest, especially work as compression Time bigger than discharge pressure/input pressure, power consumption is the most uneconomic.The most why this is also It is the reason of autonomous device toward trans vacuum pump and past trans compressor;And these independent past trans vacuum Pump and independent past trans compressor both parts are many, and not only Heavy Weight but also structure were the compactest.In recent years, in order to Solve the problem that the mechanical driving device of above-mentioned reciprocating vacuum pump and reciprocating compressor exists, Ren Menli Figure is big from utilizing worm drive to have reinforcement coefficient, and the accurate characteristic that operates steadily is set out, in conjunction with using bullet Power controls the round reversing arrangement of leading screw, and has researched and developed the one of Patent No. ZL201110158356.4 Plant reciprocating screw vacuum compressor;Its structure includes motor, driven pulley support shaft, gear drive commutation System, hollow axle, bearing block, hollow leading screw, screw, screw sleeve pipe, adapter sleeve, reversing bar, bullet Spring mechanism and the reciprocating screw transmission mechanism of jaw clutch composition, its spiral reciprocating type fax motivation The commutation of the reversing bar in structure rotates, drive by cylinder body, piston, sealed joint pipe, sealing member first, in Separate space, sealing member second, front separate space, rear separate space, triplet type intake valve, triplet type air bleeding valve, centre three Flow-through air bleeding valve, middle triplet type intake valve, total air escape pipe and the vacuum compression device of total inlet pipe composition In piston series connection group, constantly in cylinder body past, return motion, it is achieved the evacuation of this vacuum compressor Function with compression.Although the more above-mentioned reciprocating vacuum pump of this reciprocating screw vacuum compressor and reciprocating The structure of compressor, has had progress, but its electric transmission there are still some drawbacks and deficiency, the most main The shortcoming wanted is that its jaw clutch is prone to de-knot when normal work and its electric transmission can not be at height Normally working under the conditions of speed, the efficiency of the evacuation and compression function that constrain vacuum compressor improves.
Therefore, the shortcoming and defect existed for above-mentioned technology, it is circulating just that the applicant contemplates one Contravariant to speed change vacuum compressor, this circulating positive and negative break-in speed change vacuum compression
The motor drive component that machine is made up of support, motor and V belt translation drives positive and negative break-in speed changing type to pass Dynamic device, this positive and negative break-in speed changing type actuating device includes that deceleration device, forward and reverse gear synchronous drive machine Structure, positive and negative deviator and speeder, the most positive and negative deviator is to be driven by forward and reverse gear synchronous Mechanism drives, and positive and negative deviator includes forward and reverse change gear mechanism and break-in mainshaft mechanism;Positive and negative Change gear axis mechanism is by change gear axle, a change gear, upper and lower axle sleeve, break-in scroll key, duckbilled Key, b change gear, upper and lower end cap, freewheel clutch and freewheel clutch set composition;Break-in main shaft machine Structure is by break-in main shaft, first change gear, the third change gear, fourth change gear, second change gear, commutation Device and buffer composition.Collection high speed → → change of slowing down grasped by this circulating positive and negative break-in speed change vacuum compressor To the transmission scheme of → speedup, through deceleration device and positive and negative deviator;The high rotating speed of input is down to low After rotating speed and break-in, again through speeder by the high rotating speed of slow-speed of revolution speedup to output shaft, filled by speedup The output shaft put drives the piston series connection group in vacuum compression device constantly at vacuum compression cylinder with high rotating speed Body past, return motion, it is achieved circulating positive and negative break-in speed change vacuum compressor evacuation is efficient with compression Function;To this end, require the positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor, it is necessary to tool There is rational in infrastructure compact and that transmission performance is reliable and stable function.Therefore, innovative development one is applicable to follow The positive and negative deviator of ring type positive and negative break-in speed change vacuum compressor, is the most necessary.
Summary of the invention
It is contemplated that in place of in order to avoid shortcoming and defect present in above-mentioned technology, grasp and make Vacuum compressor positive and negative direction-changing drive mechanism not uncoupling and forward and reverse break-in are the most unimpeded, by positive and negative two Two duckbilled key asemblies, two change gear axle scroll keys and the left and right pendulum of commutator assembly is used on change gear axle Dynamic cooperates, it is achieved the forward and reverse break-in function of two change gear axles.And a kind of circulation is provided The positive and negative deviator of formula positive and negative break-in speed change vacuum compressor;This positive and negative deviator is the most novel in design Uniqueness, compact conformation, both not uncoupling during transmission, the most forward and reverse break-in is the most unimpeded, and has performance The feature such as reliable and stable.
It is an object of the invention to adopt the following technical scheme that realization: described circulating positive and negative break-in becomes The positive and negative deviator of speed vacuum compressor, including deceleration box and forward and reverse gear synchronous drive mechanism, It is characterized in that: deceleration box underrun is sealedly connected on the uncovered end face of break-in case;Described change The positive and negative deviator driven by forward and reverse gear synchronous drive mechanism is installed in case;Described positive contravariant It is made up of break-in mainshaft mechanism and forward and reverse change gear mechanism to device;Described break-in mainshaft mechanism By break-in main shaft, first change gear, the third change gear, fourth change gear, second change gear, buffering group Part and diverter composition, locate to install break-in main shaft, the top of described break-in main shaft in this break-in case between two parties By bearings in deceleration box bottom surface, the bottom of break-in main shaft is stretched in gearbox through bearing, Keyed jointing first change gear on the bottom of the break-in main shaft in gearbox;Break-in more than break-in case inner bottom The third change gear of hollow, fourth change gear and second change gear is sequentially installed, described third on main shaft Buffer Unit is installed on break-in main shaft in change gear cavity;Described break-in spindle top installing by Commutation body, commutation gland, traveller and " C " the shape groove slided for traveller and commutation transmission component composition Diverter, wherein break-in main shaft top by bearings commutate body, described commutation body bottom surface Installing commutation gland, described commutation gland is fixed by screws on the boss of deceleration box bottom surface;Commutation The excircle of body is provided with external arc ear, has in the bottom surface corresponding with this external arc ear end positions " C " the shape groove slided for traveller;The bottom of described traveller is fixed on second change gear;In this second Install on change gear and driven the body forward and reverse swing around break-in main shaft that commutates by diverter transmission component, Through the traveller forward and reverse motion in " C " shape groove, diverter is caused to produce positive and negative commutating period poor; Meanwhile, the two ends of external arc ear are poor, with positive and negative change gear axis mechanism by positive and negative commutating period Break-in scroll key carry out staggered alternate touching;When a change gear edge of forward rotates forward work, Break-in scroll key flicks, and duckbilled spring flicks duckbilled body, after at this moment the unidirectional ratchet on a change gear rotates Touch mutually with the radiused cross-section key section of break-in scroll key, drive change gear axle to rotate forward, due to hinge The duckbilled body being connected in change gear axle flicks and together rotates forward with change gear axle, so duckbilled body Touch mutually with the unidirectional ratchet on b change gear, drive b change gear also to rotate forward;Above-mentioned Kinestate is also applied for reverse change gear mechanism;Simply the rotation direction of change gear mechanism is contrary; When reverse change gear mechanism does not works, break-in scroll key is pressed on commutation body one end, makes break-in roll In the radiused cross-section section of key and duckbilled body retraction change gear axle, so change gear axle does not stops, a, B change gear becomes idling conditions;Poor by the positive and negative commutating period of diverter;Realize the break-in that system control is positive and negative The positive and negative commutation of gear mechanism;The lateral symmetry of the third described change gear installs forward and reverse break-in tooth Wheel mechanism, described each change gear mechanism by change gear axle, a change gear, upper Lower shaft sleeve, Break-in scroll key, spring duckbilled key asembly, b change gear, upper and lower end cap, freewheel clutch and surmount from Clutch set composition, the top of described change gear axle by bearings in gear box cover, break-in tooth The bottom of wheel shaft in break-in case inner bottom, is close to the change gear axle of gear box cover bottom surface by bearings On insert a change gear, leave spacing, a between axis hole and the change gear axle of described a change gear Change gear axis hole medial surface is provided with unidirectional ratchet;The described break-in tooth in a change gear top end face Sequentially install upper end cover and freewheel clutch set on wheel shaft, load in described freewheel clutch set and surmount Clutch, freewheel clutch set is bolted on gear box cover, described upper end cover bottom surface and a Several balls, the break-in tooth in the bottom of described a change gear is put between the contact surface of change gear Fix Upper shaft sleeve by jackscrew on wheel shaft, put between described Upper shaft sleeve end face and the contact surface of a change gear Put several balls;Freewheel clutch set is installed on change gear axle more than break-in case inner bottom surface bearing, This freewheel clutch set is bolted on break-in case inner bottom, and described freewheel clutch loads and surmounts In clutch sleeve, on the change gear axle that freewheel clutch set is above, insert b change gear, described b Leaving spacing between change gear and change gear axle, b change gear axis hole medial surface is provided with unidirectional spine Tooth;Bottom end cover, described bottom end cover end face and b is fixed by screw in the lower end of described b change gear Put several balls between the contact surface of change gear, in the top of described b change gear, pass through jackscrew Fixing Lower shaft sleeve, puts several balls between described Lower shaft sleeve bottom surface and the contact surface of b change gear, Hinged spring duckbilled key asembly in the medial surface of the described b change gear in b change gear;Described B change gear in b change gear medial surface in hinged spring duckbilled key asembly;When described Spring duckbilled key asembly 17 stretches when b change gear is outer by elastic force effect, at this b change gear Break-in scroll key is installed in duty, the change gear axle corresponding with the described every end position of commutation body; Set respectively on the cylindrical keys body that described break-in scroll key is consistent with a, b change gear axis hole height dimension Having the upper and lower key section of identical circular section, the camber of described radiused cross-section is more than break-in scroll key Radius, the top of described upper key section is fixed in upper end through the roll keyway in Upper shaft sleeve and change gear axle Cover;The bottom of described lower key section is fixed in bottom end cover through the roll keyway in Lower shaft sleeve and change gear axle On;The stage casing of this break-in scroll key is provided with ratchet head, and described ratchet head connects one end of scroll key spring, rolling The other end of key spring is connected on change gear axle;The ratchet head of described break-in scroll key and its diverter External arc ear one end of body touches mutually;When the ratchet head of the break-in scroll key in the change gear mechanism of forward is executed It is pressed on corresponding diverter external circular arc ear one end, and the upper and lower key section of this forward is not by a, b break-in The stop of unidirectional ratchet in gear shaft holes, now a change gear idle running of the change gear mechanism of this forward, Making change gear axle not rotate, the change gear mechanism causing forward does not works;And another side is reverse Change gear mechanism in normally work;Otherwise, when the break-in scroll key in reverse change gear mechanism Ratchet head applies pressure to the other end of corresponding diverter external circular arc ear, meanwhile, this reverse upper, Lower key section is not stopped by unidirectional ratchet in a, b change gear axis hole, now this reverse change gear machine The a change gear 6 of structure dallies, and makes change gear axle not rotate, and causes reverse change gear mechanism Do not work;And the change gear mechanism of the forward of another side normally works;By positive and negative two break-in main shafts On two spring duckbilled key asemblies, the cooperating of two break-in scroll key swings left and right with diverter, real The positive and negative break-in function of existing forward and reverse change gear mechanism.
Principle and the feature of the present invention are described below:
It is contemplated that it is the most smooth from vacuum compressor positive and negative direction-changing drive mechanism not uncoupling and forward and reverse break-in Pass-out is sent out, and sequentially installs the third change gear of hollow, fourth change gear and second break-in tooth on break-in main shaft Wheel, the installing of its break-in spindle top is by commutation body, commutation gland, traveller and " C " slided for traveller The commutator assembly of shape groove composition, the excircle of the body that wherein commutates is provided with external arc ear, with this cylindrical " C " the shape groove slided for traveller is had in the bottom surface that arc ear end positions is corresponding;In this second break-in tooth On wheel, installing is driven, by commutation transmission component, the body forward and reverse swing around break-in main shaft that commutates, by cunning The post forward and reverse motion in " C " shape groove;Realize its commutator assembly to match toward revesal with piston The positive and negative break-in effect that unification causes;The third change gear lateral symmetry installing on its break-in main shaft is positive and negative Two side steerings in direction, two side steering is forward and reverse by reduction box two a change gears Gear synchronous drive mechanism drives, and this forward and reverse gear synchronous drive mechanism is by power shaft, input gear, A Transition gear axle, reduction gearing, A transition gear, B transition gear axle, B transition gear, transition wheel Support and axle sleeve composition;By its Synchronous Transmission Component driver, it is achieved the positive negative side of two a change gears To synchronous axial system;Described each side steering by change gear axle, a change gear, upper and lower axle sleeve, Change gear axle scroll key, spring duckbilled key asembly, b change gear, upper and lower end cap, freewheel clutch Form with freewheel clutch set, owing to the forward and reverse side steering in the present invention is provided with commutation assembly, delays Rush device and duckbilled key asembly, so that it may by commutation assembly, Bunper assembly and spring duckbilled key asembly Cooperate so that it is the change gear axle in forward and reverse side steering realizes the break-in merit of positive and negative direction Energy.The spiral that the present invention not only instead of jaw clutch of the prior art, that be prone to de-knot is reciprocal Formula drive mechanism;And the present invention has the features such as forward and reverse break-in is the most unimpeded.
The comprehensive above technical scheme taked, it is achieved the purpose of the present invention.
Compared with prior art, the present invention is not only novel in design unique, compact conformation, both during transmission not
Uncoupling, the most forward and reverse break-in is the most unimpeded, and has dependable performance and the feature such as stable.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
The present invention has ten width accompanying drawings.Wherein:
Accompanying drawing 1 be the specific embodiment of the invention main TV structure schematic diagram;
Accompanying drawing 2 is the enlarged diagram at the M in Fig. 1;
Accompanying drawing 3 is the section view enlarged diagram in Fig. 2 along H H line;
Accompanying drawing 4 is the section view enlarged diagram in Fig. 2 along D D line;
Accompanying drawing 5 is the section view enlarged diagram in Fig. 2 along F F line;
Accompanying drawing 6 is the section view enlarged diagram in Fig. 2 along G G line;
Accompanying drawing 7 is the section view enlarged diagram in Fig. 2 along E E line;
Accompanying drawing 8 is the section view enlarged diagram in Fig. 3 along K K line;
Accompanying drawing 9 is the section view enlarged diagram in Fig. 7 along B B line;
Accompanying drawing 10 is the enlarged diagram of the change gear axle scroll key 12 in Fig. 9.
In figure: 1, freewheel clutch, 2, upper and lower end cap, 3, freewheel clutch set, 4, ball, 5, upper Lower shaft sleeve, 6, a change gear, 7, deceleration box, 8, change gear Axle, 9, commutation body, 10, traveller, 11, break-in scroll key, 12, second change gear, 13, fourth change gear, 14, b change gear, 15, break-in case, 16, O, 17, spring duckbilled key asembly, the 18, third change gear, 19, F transition gear, 20, first becomes To gear, 21, G transition gear, 22, buffer spring, 23, break-in main shaft, 24, defeated Go out gear, 26, buffer, 27, gearbox, 28, commutation gland, 29, Input gear, 30, gear box cover, 31, external arc ear, 32, power shaft, 33, Reduction gearing, 34, transition wheel support, 35, C transition gear axle, 36, B transition gear axle, 37, B transition gear, 38, A transition gear axle, 39, A transition gear, 40, axle sleeve, 41, Unidirectional ratchet, 42, scroll key spring, 43, hinge, 44, duckbilled spring, 45, D mistake Cross gear, 46, E transition gear.
Detailed description of the invention
Being the specific embodiment of the present invention shown in Fig. 1,2,3,4,5,6,7,8,9,10, it is The positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor, its structure include deceleration box and Forward and reverse gear synchronous drive mechanism, it is characterised in that: deceleration box 7 underrun is sealedly connected on change On the uncovered end face of case 15;In described break-in case 15, installing is by forward and reverse gear synchronous drive mechanism The positive and negative deviator driven;Described positive and negative deviator is same by break-in mainshaft mechanism and forward and reverse gear Step drive mechanism composition;Described break-in mainshaft mechanism is become by break-in main shaft 23, first change gear 20, third Form to gear 18, fourth change gear 13, second change gear 12, buffer and diverter, in this break-in Case 15 is located to install break-in main shaft 23 between two parties, and the top of described break-in main shaft 23 is being subtracted by bearings In speed casing 7 bottom surface, the bottom of break-in main shaft 23 is stretched in gearbox 27, in gearbox through bearing
Keyed jointing first change gear 20 on the bottom of the break-in main shaft 23 in 27;More than break-in case 15 inner bottom Break-in main shaft 23) on sequentially install the third change gear 18, fourth change gear 13 and the second break-in of hollow Gear 12, the break-in main shaft 23 in the third described change gear 18 cavity is installed buffer;Institute The break-in main shaft 23 top installing stated is by commutation body 9, commutation gland 28, traveller 10 and supplies traveller (10) " C " the shape groove slided and the diverter of commutation transmission component composition, wherein break-in main shaft 23 top leads to Crossing bearings commutation body 9, described commutation body 9 bottom surface installing commutation gland 28, described changes It is fixed by screws on the boss of deceleration box 7 bottom surface to gland 28;Set on the excircle of commutation body 9 There is external arc ear 31, have for traveller 10 sliding in the bottom surface corresponding with this external arc ear 31 end positions " C " the shape groove moved;The bottom of described traveller 10 is fixed on second change gear 12;Become in this second Install on gear 12 and driven commutation positive and negative around break-in main shaft 23 of body 9 by diverter transmission component To swing, through the traveller 10 forward and reverse motion in " C " shape groove, diverter is caused to produce positive and negative changing To time difference;Meanwhile, the two ends of external arc ear 31 are poor, with positive and negative change by positive and negative commutating period Staggered alternate touching is carried out to the break-in scroll key 11 of gear shaft mechanism;When a change gear of forward is along just When rotation work, break-in scroll key 11 flicks, and duckbilled spring flicks duckbilled body, at this moment on a change gear Unidirectional ratchet rotate after touch mutually with the radiused cross-section key section of break-in scroll key 11, drive change gear Axle rotates forward, and the duckbilled body owing to being hinged in change gear axle flicks just together to be made with change gear axle To rotation, so duckbilled body touches mutually with the unidirectional ratchet on b change gear, drive b change gear also Rotate forward;Above-mentioned kinestate is also applied for reverse change gear mechanism;Simply change gear The rotation direction of mechanism is contrary;When reverse change gear mechanism does not works, break-in scroll key 11 is pressed in and changes On body one end, in making radiused cross-section section and the duckbilled body retraction change gear axle of break-in scroll key, So change gear axle does not stops, a, b change gear becomes idling conditions;During by the positive decommuntation of diverter Between poor;Realize the positive and negative commutation of the positive and negative change gear mechanism of system control;By the positive decommuntation of diverter Time difference;The system of realization controls the positive and negative commutation of forward and reverse change gear mechanism;The third described change gear 18 The forward and reverse change gear mechanism of lateral symmetry installing, described each change gear mechanism is by break-in tooth Wheel shaft 8, a change gear 6, upper Lower shaft sleeve 5, break-in scroll key 11, spring duckbilled key asembly 17, b Change gear 14, upper and lower end cap 2, freewheel clutch 1 and freewheel clutch set 3 composition, described change To the top of gear shaft 8 by bearings in gear box cover 30, the bottom of change gear axle 8 is passed through Bearings, in break-in case 15 inner bottom, is close on the change gear axle 8 of gear box cover 30 bottom surface insert a Change gear 6, leaves spacing between axis hole and the change gear axle 8 of described a change gear 6, a becomes It is provided with unidirectional ratchet 41 to gear 6 axis hole medial surface;The described change in a change gear 6 top end face Upper end cover 2 and freewheel clutch set 3 is sequentially installed, in described freewheel clutch set 3 on gear shaft 6 Interior loading freewheel clutch 1, freewheel clutch set 3 is bolted on gear box cover 30, described Upper end cover 2 bottom surface and a change gear 6 contact surface between put several balls 4, described a break-in Upper shaft sleeve 5, described Upper shaft sleeve 5 is fixed by jackscrew on change gear axle 8 in the bottom of gear 6 Several balls 4 are put between the contact surface of end face and a change gear 6;In break-in case 15 inner bottom surface bearing Installing freewheel clutch set 3 on above change gear axle 8, this freewheel clutch set 3 is bolted On break-in case 15 inner bottom, described freewheel clutch 1 load freewheel clutch set 3 in, in surmount from B change gear 14, described b change gear 14 is inserted on the change gear axle 8 of clutch set more than 3 And leaving spacing between change gear axle 8, b change gear 14 axis hole medial surface is provided with unidirectional ratchet 41; Bottom end cover 2, described bottom end cover 2 end face is fixed by screw in the lower end of described b change gear 14 And put several balls 4, the top of described b change gear 14 between the contact surface of b change gear 14 In fix Lower shaft sleeve 5 by jackscrew, between described Lower shaft sleeve 5 bottom surface and the contact surface of b change gear 14 Put several balls 4, hinged in the medial surface of the described b change gear 14 in b change gear 14 Spring duckbilled key asembly 17;When described spring duckbilled key asembly 17 is stretched at b by elastic force effect When change gear is outer, this b change gear 14 is in running order, when this spring duckbilled key asembly 17 When being huddled up in break-in main shaft 23 by elastic force effect, this b change gear 14 is in idling conditions;With Break-in scroll key 11 is installed on the change gear axle 8 that the described every end position of commutation body 9 is corresponding;Described It is respectively equipped with on the cylindrical keys body that break-in scroll key 11 is consistent with a, b change gear axis hole height dimension The upper and lower key section of identical radiused cross-section, the camber of described radiused cross-section is more than break-in scroll key The radius of 11, the top of described upper key section is affixed through the roll keyway in Upper shaft sleeve 5 and change gear axle 8 On upper end cover 2;The bottom of described lower key section is through the roll keyway in Lower shaft sleeve 5 and change gear axle 8 It is fixed on bottom end cover 2;The stage casing of this break-in scroll key 11 is provided with ratchet head, and described ratchet head connects rolling One end of key spring 42, the other end of scroll key spring 42 is connected on change gear axle 8;Described change Touch mutually to external arc ear 31 one end of the ratchet head of scroll key 11 with its body 9 that commutates;Change when forward The ratchet head of the break-in scroll key 17 in gear mechanism applies pressure to corresponding commutation body 9 external arc ear 31 One end, and the upper and lower key section of this forward is not by the stop of unidirectional ratchet 41 in a, b change gear axis hole, Now a change gear 6 of the change gear mechanism of this forward dallies, and makes change gear axle 8 not rotate, The change gear mechanism causing forward does not works;And normal work in the reverse change gear mechanism of another side Make;Otherwise, when the ratchet head of the break-in scroll key 11 in reverse change gear mechanism applies pressure to corresponding The other end of diverter external circular arc ear 31, meanwhile, this reverse upper and lower key section is not by a, b The stop of unidirectional ratchet 41 in change gear axis hole, now a break-in tooth of this reverse change gear mechanism Wheel 6 idle running, makes change gear axle 8 not rotate, causes reverse change gear mechanism and do not work;And The change gear mechanism of the forward of another side normally works;By two bullets on positive and negative two break-in main shafts 23 Cooperating of spring formula duckbilled key asembly 17, two break-in scroll key 11 swing left and right with diverter, it is achieved just The positive and negative break-in function of reverse change gear mechanism.
It is identical that described gear box cover 30, deceleration box 7, break-in case 15 and gearbox 27 is external diameter Cylindrical shape.
Described transition wheel support 34 is the boss shape support body being located at gear box cover 30 bottom surface, and described is convex Stand body root portion is furnished with reinforcement.
Connection between described gear box cover 30, deceleration box 7, break-in case 15, gearbox 27 is divided equally Cai Yong not connect by O RunddichtringO 16.
" C " shape groove two ends of described commutation body 9 be semicircle, its semicircle center often held with change Angle to body 9 diameter is α;The sizes values of described α angle depends on the size of piston stroke; When piston stroke is big, α angle value is the least;When piston stroke is little, α angle value is the biggest;Described The length of the circumference L of external arc ear 31 depend on forward and reverse side steering commutating period difference length Short, long when the commutation difference time of two side steerings, this circumference L is the longest;Commutation when two side steerings The difference time is short, and this circumference L is the shortest.
Described commutation transmission component is by C transition gear axle 10, E transition gear and D transition gear 45 Composition, described second change gear 12 is meshed with the D transition gear 45 on C transition gear axle 35; Described fourth change gear 13 and the E transition gear 46 on C transition gear axle 35 be meshed;Described C transition gear axle 35 one end by bearings in break-in case 15 bottom surface, its C transition gear axle The other end of 35 passes through bearings in deceleration box 7 bottom surface.
Described Bunper assembly is made up of buffer 26, buffer gland 25 and buffer spring 22, Keyed jointing buffer 26 on break-in main shaft 23 in the third described change gear 18 hollow, described buffering Upper and lower buffer gland 25 and upper and lower buffering is sequentially installed on the break-in main shaft 23 of the upper and lower side of device 26 Device spring 22.
Described spring duckbilled key asembly 21 is made up of duckbilled body, hinge 44 and duckbilled spring 45, Have the groove accommodating duckbilled body in the medial surface of described change gear axle 11, described duckbilled body is passed through Hinge 43 is hinged in groove, the ratchet head phase in the mouth end of this duckbilled body and change gear axle scroll key 19 stage casing Touching, the other end of described duckbilled body connects one end of duckbilled spring 45, described duckbilled spring 45 The other end be connected on duckbilled body.
Described commutation transmission component is by C transition gear axle 35, B transition gear axle 33, E transition tooth Wheel 46 and D transition gears 31 form, on described second change gear 12 and B transition gear axle 33 D transition gear 31 is meshed;Described fourth change gear 13 and the E transition on B transition gear axle 33 Gear 46 be meshed;Bearings is passed through at break-in case 49 end in described B transition gear axle 33 one end In face, the other end of its B transition gear axle 33 passes through bearings in reduction box bottom surface.
In this specific embodiment, forward and reverse gear synchronous drive mechanism includes by reduction gearing 33, A transition Gear shaft 38, A transition gear 39, B transition gear axle 36, B transition gear 38, transition wheel support 34 and axle sleeve 40 composition forward and reverse gear synchronous drive mechanism.
The above, the only preferably detailed description of the invention of the present invention, but protection scope of the present invention is also
Being not limited to this, all those familiar with the art are at technical scope disclosed by the invention In, according to the design of technical scheme and the present invention thereof in addition equivalent or change and all should contain Within protection scope of the present invention.

Claims (5)

1. a positive and negative deviator for circulating positive and negative break-in speed change vacuum compressor, including deceleration box and Forward and reverse gear synchronous drive mechanism, it is characterised in that: deceleration box (7) underrun is sealedly connected on change On the uncovered end face of case (15);In described break-in case (15), installing is driven by forward and reverse gear synchronous The positive and negative deviator that mechanism drives;Described positive and negative deviator is by break-in mainshaft mechanism and forward and reverse gear Synchronous drive mechanism forms;Described break-in mainshaft mechanism by break-in main shaft (23), first change gear (20), Third change gear (18), fourth change gear (13), second change gear (12), buffer and diverter composition, In this break-in case (15) place's installing break-in main shaft (23) between two parties, the top of described break-in main shaft (23) leads to Crossing bearings in deceleration box (7) bottom surface, speedup is stretched into through bearing in the bottom of break-in main shaft (23) In case (27), keyed jointing first change gear (20) on the bottom of the break-in main shaft (23) in gearbox (27); Sequentially install on break-in main shaft (23) more than break-in case (15) inner bottom hollow the third change gear (18), Fourth change gear (13) and second change gear (12), in described the third change gear (18) cavity Break-in main shaft installs buffer on (23);The installing of described break-in main shaft (23) top by commutation body (9), Commutation gland (28), traveller (10) and " C " the shape groove slided for traveller (10) and commutation transmission group The diverter of part composition, wherein break-in main shaft (23) top is by bearings commutation body (9), described Commutation body (9) bottom surface installing commutation gland (28), described commutation gland (28) is solid by screw It is scheduled on the boss of deceleration box (7) bottom surface;The excircle of commutation body (9) is provided with external arc ear (31), " C " shape slided for traveller (10) is had in the bottom surface corresponding with this external arc ear (31) end positions Groove;The bottom of described traveller (10) is fixed on second change gear (12);In this second change gear (12) Upper installing is driven, by the transmission component that commutates, the body (9) the forward and reverse swing around break-in main shaft (23) that commutates, Through the traveller (10) forward and reverse motion in " C " shape groove, diverter is caused to produce positive and negative commutating period Difference;Meanwhile, the two ends of external arc ear (31) are poor, with positive and negative break-in tooth by positive and negative commutating period The break-in scroll key (11) of axle mechanism carries out staggered alternate touching;A change gear (6) edge when forward When rotating forward work, break-in scroll key (11) flicks, and duckbilled spring flicks duckbilled body, at this moment a break-in tooth After unidirectional ratchet (41) rotation on wheel (6), the radiused cross-section key section with break-in scroll key (11) touches Connect, drive change gear axle (8) to rotate forward, owing to being hinged on the duckbilled body in change gear axle (8) Flick and together rotate forward with change gear axle (8), so on duckbilled body and b change gear (14) Unidirectional ratchet touches mutually, drives b change gear (14) also to rotate forward;Reverse change gear axle machine The rotation direction of structure motion simply change gear axis mechanism is contrary;When reverse change gear axis mechanism does not works Time, break-in scroll key (11) is pressed on commutation body (9) one end, and the circular arc making break-in scroll key (11) is horizontal In cross section key section and duckbilled body retraction change gear axle, so change gear axle does not stops, a, b change gear becomes Idling conditions;Poor by the positive and negative commutating period of diverter;Realize controlling forward and reverse change gear axis mechanism Positive and negative commutation;The lateral symmetry of described the third change gear (18) installs forward and reverse change gear axle Mechanism, described each change gear axis mechanism is by change gear axle (8), a change gear (6), upper and lower axle Set, break-in scroll key (11), spring duckbilled key asembly (17), b change gear (14), upper and lower end cap, Freewheel clutch (1) and freewheel clutch set (3) composition, the top of described change gear axle (8) leads to Cross bearings in gear box cover (30), the bottom of change gear axle (8) by bearings in break-in In case (15) inner bottom, it is close on the change gear axle of gear box cover bottom surface insert a change gear (6), described A change gear axis hole and change gear axle (8) between leave spacing, a change gear axis hole medial surface It is provided with unidirectional ratchet (41);On the described change gear axle (8) in a change gear (6) top end face Sequentially installing upper end cover and freewheel clutch set (3), freewheel clutch set (3) is bolted on deceleration On case lid (30), between the contact surface of described upper end cover bottom surface and a change gear (6), put several rollings Pearl (4), the change gear axle (8) in the bottom of described a change gear (6) is fixed by jackscrew Upper shaft sleeve, puts several balls (4) between the contact surface of described Upper shaft sleeve end face and a change gear (6); Change gear axle (8) more than break-in case (15) inner bottom surface bearing upper installing freewheel clutch set (3), This freewheel clutch set (3) is bolted on break-in case (15) inner bottom, described freewheel clutch (1) load in freewheel clutch set (3), the change gear axle (8) more than freewheel clutch set (3) On insert b change gear (14), stay between described b change gear (14) and change gear axle (8) Spacing, b change gear (14) axis hole medial surface is had to be provided with unidirectional ratchet (41);Described b change gear (14) bottom end cover, described bottom end cover end face and b change gear (14) are fixed by screw in lower end Contact surface between put several balls (4), pass through jackscrew in the top of described b change gear (14) Fixing Lower shaft sleeve, puts several rollings between the contact surface of described Lower shaft sleeve bottom surface and b change gear (14) Pearl (4), hinged spring duckbilled key asembly (17) in the medial surface of described b change gear (14);When Described spring duckbilled key asembly (17) stretches when b change gear is outer by elastic force effect, and this b becomes In running order to gear (14), in the change gear that the every end position of described commutation body (9) is corresponding Axle (8) upper installing break-in scroll key (11);Described break-in scroll key (11) is high with a, b change gear axis hole The upper and lower key section of identical radiused cross-section it is respectively equipped with on the cylindrical keys body that degree size is consistent, described The camber of radiused cross-section more than the radius of break-in scroll key (11), the top of described upper key section is through upper Roll keyway in axle sleeve and change gear axle (8) is fixed on upper end cover;The bottom of described lower key section passes down Roll keyway in axle sleeve and change gear axle (8) is fixed on bottom end cover;In the change gear axis mechanism of forward The stage casing of break-in scroll key (11) be provided with ratchet head, described ratchet head connects the one of scroll key spring (42) End, the other end of scroll key spring (42) is connected on change gear axle (8);The change gear axle machine of forward Commutate with it external arc ear (31) one end of body (9) of the ratchet head of the break-in scroll key (11) in structure touches Connect;When the ratchet head of the break-in scroll key (11) in the change gear axis mechanism of forward applies pressure to corresponding changing To body (9) external arc ear (31) one end, and the upper and lower key section of this forward is not by a, b change gear The stop of unidirectional ratchet (41) in axis hole, now a change gear (6) of the change gear axis mechanism of this forward Idle running, makes change gear axle (8) not rotate, and the change gear axis mechanism causing forward does not works;And it is another Reverse change gear axis mechanism on one side normally works;Otherwise, when in reverse change gear axis mechanism The ratchet head of break-in scroll key (11) apply pressure to the other end of corresponding diverter external circular arc ear (31), Meanwhile, this reverse upper and lower key section is not by the resistance of unidirectional ratchet (41) in a, b change gear axis hole Gear, now a change gear (6) idle running of this reverse change gear axis mechanism, makes change gear axle (8) Can not rotate, cause reverse change gear axis mechanism and do not work;And the change gear axle of the forward of another side Mechanism normally works;By two springs duckbilled key asembly (17) on positive and negative two break-in main shafts (23), Cooperating of two break-in scroll key (11) swings left and right with diverter, it is achieved forward and reverse change gear axle The positive and negative break-in function of mechanism;
Described gear box cover (30), deceleration box (7), break-in case (15) and gearbox (27) is equal For the cylindrical shape that external diameter is identical;
Described gear box cover (30), deceleration box (7), break-in case (15), gearbox (27) it Between connection use O RunddichtringO (16) to connect respectively.
2. the positive and negative deviator of the circulating positive and negative break-in speed change vacuum compressor as described in claim 1, It is characterized in that: described commutation transmission component is by C transition gear axle (35), E transition gear (46) Form with D transition gear (45), described second change gear (12) and C transition gear axle (35) On D transition gear (45) be meshed;Described fourth change gear (13) and C transition gear axle (35) On E transition gear (46) be meshed;Described C transition gear axle (35) one end is propped up by bearing Support is in deceleration box (7) bottom surface, and the other end of its C transition gear axle (35) is existed by bearings In deceleration box (7) bottom surface.
3. the positive and negative deviator of the circulating positive and negative break-in speed change vacuum compressor as described in claim 1, It is characterized in that: described buffer is by buffer cylinder (26), upper lower cover (25) and upper and lower buffer spring (22) composition, the upper keyed jointing buffering of the break-in main shaft (23) in described the third change gear (18) hollow Cylinder (26), the upper and lower side of described buffer cylinder (26) is installed lower cover (25) respectively and delays up and down Rush spring (22).
4. the positive and negative deviator of the circulating positive and negative break-in speed change vacuum compressor as described in claim 1, It is characterized in that: described spring duckbilled key asembly (17) is by duckbilled body, hinge (43) and duck Mouth spring (44) forms, and has the groove accommodating duckbilled body in the medial surface of described change gear axle (8), Described duckbilled body is hinged in groove by hinge (43), the sharp nozzle end of this duckbilled body and break-in scroll key (11) Lower key section touches mutually, and the other end of described duckbilled body connects one end of duckbilled spring (44), described duck The other end of mouth spring (44) is connected on change gear axle (8).
5. the positive and negative deviator of the circulating positive and negative break-in speed change vacuum compressor as described in claim 1, It is characterized in that: " C " shape groove two ends of described commutation body (9) are semicircle, its often hold half Circular central is α with the angle of commutation body (9) diameter;The sizes values of described α angle depends on living The size of plug stroke;When piston stroke is big, α angle value is the least;When piston stroke is little, α angle Value is the biggest;The length of the circumference L of described external arc ear (31) depends on forward and reverse break-in machine The length that the commutating period of structure is poor, long when the commutation difference time of two change gear axis mechanisms, this circumference L The longest;Short when the commutation difference time of two change gear axis mechanisms, this circumference L is the shortest.
CN201310711536.XA 2013-12-18 2013-12-18 The positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor Expired - Fee Related CN103671753B (en)

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CN203627673U (en) * 2013-12-18 2014-06-04 大连精功机械设备有限公司 Forward and backward direction changing device of circulating-type forward and backward direction and speed changing vacuum compressor

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JP2009062870A (en) * 2007-09-06 2009-03-26 I & T:Kk Air pump

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201326697Y (en) * 2008-11-12 2009-10-14 陈凌云 Automated mechanical transmission of overrunning clutch motor
CN102226450A (en) * 2011-06-13 2011-10-26 张庆鹏 Reciprocating screw vacuum compressor
CN102777547A (en) * 2012-08-13 2012-11-14 宋嗣新 Positive and negative rotation output conversion device
CN203627673U (en) * 2013-12-18 2014-06-04 大连精功机械设备有限公司 Forward and backward direction changing device of circulating-type forward and backward direction and speed changing vacuum compressor

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