CN103671753A - Forward and backward turning device of circulation type forward and backward turning and variable speed vacuum compressor - Google Patents

Forward and backward turning device of circulation type forward and backward turning and variable speed vacuum compressor Download PDF

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Publication number
CN103671753A
CN103671753A CN201310711536.XA CN201310711536A CN103671753A CN 103671753 A CN103671753 A CN 103671753A CN 201310711536 A CN201310711536 A CN 201310711536A CN 103671753 A CN103671753 A CN 103671753A
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China
Prior art keywords
change gear
break
key
positive
negative
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Granted
Application number
CN201310711536.XA
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Chinese (zh)
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CN103671753B (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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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed 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
    • F16H3/10—Toothed 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/069—Freewheels 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed 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
    • F16H3/12—Toothed 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed 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
    • F16H3/14—Gearings for reversal only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes

Abstract

The invention belongs to a vacuum compressor, and particularly relates to a forward and backward turning device of a circulation type forward and backward turning and variable speed vacuum compressor. The forward and backward turning device of the circulation type forward and backward turning and variable speed vacuum compressor is characterized in that a third hollow turning gear, a fourth hollow turning gear and a second hollow turning gear are sequentially installed at the part, above the inner bottom of a turning box, of a main turning shaft, a forward turning mechanism and a backward turning mechanism which are driven by a synchronous drive assembly are installed on the two sides of the third hollow turning gear, and each turning mechanism is composed of a turning gear shaft, a turning gear A, a shaft cover, a turning gear shaft roll key, a spring-type duckbilled key assembly, a turning gear B, an upper end cover, a lower end cover, an overrun clutch and an overrun clutch cover. Due to the cooperation of left-and-right swinging of the two duckbilled key assembles on the forward turning gear shaft and the backward turning gear shaft, the two turning gear shaft roll keys and a commutator assembly, forward and backward turning of the two turning gear shafts is achieved. The forward and backward turning device of the circulation type forward and backward turning and variable speed vacuum compressor is not only novel and unique in design, compact in structure, free of disconnection when in transmission and accurate and smooth in forward and backward turning, but also has the advantages of being reliable in performance, stable in operation and the like.

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 a kind of positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor.
Background technique
At present, in engineering goods, such as the mechanical transmission of reciprocating vacuum pump and reciprocal compressor, its structure mostly adopts motor, with the driving mechanism of transmission driving crank and eccentric wheel type.By adopting slide block and connecting rod to coordinate promotion piston to realize to-and-fro motion, owing to being subject to the restriction of the above-mentioned kind of drive, its cylinder body distribution form can only be V-type, fan type or twin-tub type in parallel.Due to bent axle and eccentric wheel transmission existence periodicity flex point or dead point---export the dead point that torque is " 0 "; During transmission, will inevitably cause vibrations and noise, and bent axle and eccentric gearing do not have reinforcement coefficient; So power consumption is just large, especially when compression ratio---when head pressure/incoming pressure is larger, power consumption is very uneconomic.This is also why toward trans vacuum pump and past trans compressor, to be the reason of autonomous device at present; And these are independently toward trans vacuum pump and independently many toward trans compressor both parts, not only Heavy Weight but also structure were not compact.In recent years, the problem existing in order to solve the mechanical transmission of above-mentioned reciprocating vacuum pump and reciprocal compressor, the vertical figure of people is large from utilizing power screw to have reinforcement coefficient, the accurate characteristic that operates steadily is set out, in conjunction with adopting elastic force to control the round reversing arrangement of leading screw, and researched and developed a kind of reciprocating screw vacuum compressor that the patent No. is ZL201110158356.4, its structure comprises motor, follower back shaft, gear transmission reversing mechanism, hollow shaft, bearing support, hollow leading screw, screw, screw sleeve pipe, connecting sleeve, reversing bar, the reciprocating screw transmission mechanism that spring mechanism and jaw clutch form, the commutation of the reversing bar in its spiral reciprocating type electric transmission is rotated, drive is by cylinder body, piston, sealed joint pipe, Sealing first, middle separate space, Sealing second, front separate space, rear separate space, three-way type suction valve, three-way type outlet valve, middle three-way type outlet valve, middle three-way type suction valve, piston series connection group in the vacuum compression device that total air escape pipe and total inlet pipe form, continuous past in cylinder body, return motion, realize the function that vacuumizes with compress of this vacuum compressor.Although the structure of the more above-mentioned reciprocating vacuum pump of this reciprocating screw vacuum compressor and reciprocal compressor, there is progress, but still there are some shortcoming and defect in its electric transmission, topmost shortcoming is that its jaw clutch is easy to de-knot when normal work and its electric transmission can not normally be worked under high-speed condition, has restricted vacuumizing with the efficiency of compression function of vacuum compressor and has improved.Therefore, the shortcoming and defect existing for above-mentioned technology, the applicant has conceived a kind of circulating positive and negative break-in speed change vacuum compressor, this circulating positive and negative break-in speed change vacuum compressor is by support, motor and the motor drive component forming with transmission drive positive and negative break-in speed changing type transmission device, this positive and negative break-in speed changing type transmission device comprises speed reducer, forward and reverse gear synchronous driving mechanism, positive and negative deviator and speeder, wherein positive and negative deviator is to be driven by forward and reverse gear synchronous driving mechanism, positive and negative deviator comprises forward and reverse change gear mechanism and break-in mainshaft mechanism, positive and negative change gear axis mechanism rolls key, duckbilled key, b change gear, upper and lower end cap, free wheel device and free wheel device cover by change gear axle, a change gear, upper and lower axle sleeve, break-in and forms, break-in mainshaft mechanism is comprised of break-in main shaft, first change gear, the third change gear, fourth change gear, second change gear, commutator and buffer.This circulating positive and negative break-in speed change vacuum compressor is being grasped the transmission scheme of collection high speed → deceleration → break-in → speedup, through speed reducer and positive and negative deviator; The high rotating speed of input is down to after the slow-speed of revolution and break-in, through speeder, slow-speed of revolution speedup is arrived again to the high rotating speed of output shaft, by the output shaft in speeder with high rotating speed drive piston series connection group in vacuum compression device constantly vacuum compression cylinder body past, return motion, realize circulating positive and negative break-in speed change vacuum compressor and vacuumize and the efficient function of compressing; For this reason, require the positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor, must there is the reliable and stable function of compactness rational in infrastructure and transmission performance.Therefore, a kind of positive and negative deviator that is applicable to circulating positive and negative break-in speed change vacuum compressor of innovative development, is very necessary.
Summary of the invention
The present invention is intended to the shortcoming and defect part existing in above-mentioned technology, grasping make the positive and negative direction-changing drive mechanism of vacuum compressor not uncoupling and forward and reverse break-in accurately unimpeded, by adopting two duckbilled key asemblies, two change gear axles to roll cooperatively interacting of key and the left and right swing of commutator assembly, realize the forward and reverse break-in function of two change gear axles on positive and negative two change gear axles.And provide a kind of positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor; This positive and negative deviator is not only novel in design unique, compact structure, and both uncouplings not during transmission, forward and reverse break-in is accurately unimpeded again, and has reliable performance and the feature such as stable.
The object of the invention is to adopt following technological scheme to realize: the positive and negative deviator of described circulating positive and negative break-in speed change vacuum compressor, comprise deceleration box and forward and reverse gear synchronous driving mechanism, it is characterized in that: deceleration box underrun is sealedly connected on the uncovered end face of break-in case, the positive and negative deviator that in described break-in case, installing is driven by forward and reverse gear synchronous driving mechanism, described positive and negative deviator is comprised of break-in mainshaft mechanism and forward and reverse change gear mechanism, described break-in mainshaft mechanism is comprised of break-in main shaft, first change gear, the third change gear, fourth change gear, second change gear, Buffer Unit and commutator, in this break-in case middle part installing break-in main shaft, the top of described break-in main shaft by bearings in deceleration box bottom surface, the bottom of break-in main shaft is stretched in speedup box through bearing, keyed jointing first change gear on the bottom of the break-in main shaft in speedup box, on break-in main shaft in break-in case more than the end, sequentially install the third change gear, fourth change gear and the second change gear of hollow, on the break-in main shaft in the third described change gear hollow cavity, install Buffer Unit, the commutator that described break-in spindle top installing is comprised of commutation body, commutation gland, traveller and " C " shape groove sliding for traveller and commutation transmitting assemblies, wherein break-in main shaft top is by the bearings body that commutates, described commutation body bottom surface installing commutation gland, described commutation gland is fixed by screws on the boss of deceleration box bottom surface, the excircle of commutation body is provided with external arc ear, has " C " shape groove sliding for traveller in the bottom surface corresponding with this external arc ear end positions, the bottom of described traveller is fixed on second change gear, on this second change gear, installing drives commutation body around the forward and reverse swing of break-in main shaft by commutator transmitting assemblies, and the forward and reverse motion through traveller in " C " shape groove causes commutator to produce positive and negative turn around time poor, meanwhile, the two ends of external arc ear are poor by positive and negative turn around time, roll key alternate the touching that interlock with the break-in of positive and negative change gear axis mechanism, when a of forward change gear is worked along forward rotation, break-in is rolled key and is flicked, duckbilled spring flicks duckbilled body, at this moment the circular arc cross section key section that the unidirectional ratchet on a change gear rolls key with break-in after rotating touches mutually, drive change gear axle forward rotation, owing to being hinged on duckbilled body in change gear axle, flicking with change gear axle and together make forward rotation, so duckbilled body touches mutually with the unidirectional ratchet on b change gear, drive b change gear also to do forward rotation, above-mentioned motion state is also applicable to reverse change gear mechanism, it is the direction of rotation of change gear mechanism, when reverse change gear mechanism does not work, break-in roll key be pressed in commutation body one end on, break-in is rolled in the circular arc cross-section segments and duckbilled body retraction change gear axle of key, thus change gear axle do not stop, a, b change gear become idling conditions, positive and negative turn around time by commutator is poor, realize the positive and negative commutation of the forward and reverse change gear mechanism of system control, the bilateral symmetry of the third described change gear is installed forward and reverse change gear mechanism, each described change gear mechanism is by change gear axle, a change gear, upper Lower shaft sleeve, key is rolled in break-in, spring duckbilled key asembly, b change gear, upper and lower end cap, free wheel device and free wheel device cover form, the top of described change gear axle by bearings in gear box cover, the bottom of change gear axle by bearings in break-in case at the end, be close on the change gear axle of gear box cover bottom surface and insert a change gear, between the axis hole of described a change gear and change gear axle, leave spacing, a change gear axis hole inner side surface is provided with unidirectional ratchet, on change gear axle in described a change gear top end, sequentially install upper end cap and free wheel device cover, in described free wheel device cover is in-built, enter free wheel device, free wheel device cover is bolted on gear box cover, between described upper end cap bottom surface and the surface of contact of a change gear, put several balls, on change gear axle in the bottom of described a change gear, by the fixing Upper shaft sleeve of jackscrew, between described Upper shaft sleeve end face and the surface of contact of a change gear, put several balls, on change gear axle more than break-in case inner bottom surface bearing, install free wheel device cover, this free wheel device cover is bolted on break-in case at interior the end, described free wheel device packs in free wheel device cover, on change gear axle more than free wheel device cover, insert b change gear, between described b change gear and change gear axle, leave spacing, b change gear axis hole inner side surface is provided with unidirectional ratchet, in the lower end of described b change gear by the fixing lower end cap of screw, between described lower end cap end face and the surface of contact of b change gear, put several balls, in the top of described b change gear by the fixing Lower shaft sleeve of jackscrew, between described Lower shaft sleeve bottom surface and the surface of contact of b change gear, put several balls, hinged spring duckbilled key asembly in the inner side surface of the b change gear in described b change gear, hinged spring duckbilled key asembly in the inner side surface of the b change gear in described b change gear, when described spring duckbilled key asembly 17 stretches outside b change gear by elastic force effect, this b change gear is in running order, installs break-in and roll key on the change gear axle corresponding with the every end position of described commutation body, the upper and lower key section that is respectively equipped with identical circular section on the consistent cylindrical keys body of key and a, b change gear axis hole height dimension is rolled in described break-in, the camber of described circular arc cross section is greater than the radius that key is rolled in break-in, and the top of described upper key section is fixed on upper end cap through the keyway that rolls in Upper shaft sleeve and change gear axle, the bottom of described lower key section is fixed on lower end cap through the keyway that rolls in Lower shaft sleeve and change gear axle, the stage casing that key is rolled in this break-in is provided with ratchet head, and described ratchet head connects the one end of rolling key spring, and the other end that rolls key spring is connected on change gear axle, the ratchet head of key is rolled in described break-in and external arc ear one end of its commutation body touches mutually, the ratchet head that key is rolled in break-in in the change gear mechanism of forward applies pressure to the external circular arc ear of corresponding commutator one end, and the upper and lower key section of this forward is not subject to stopping of a, the interior unidirectional ratchet of b change gear axis hole, the now a change gear of the change gear mechanism of this forward idle running, change gear axle can not be rotated, and the change gear mechanism of causing forward does not work, and normally work in the reverse change gear mechanism of another side, otherwise, the ratchet head that key is rolled in break-in in reverse change gear mechanism applies pressure to the other end of the external circular arc ear of corresponding commutator, meanwhile, this reverse upper and lower key section is not subject to stopping of a, the interior unidirectional ratchet of b change gear axis hole, now a change gear 6 idle running of this reverse change gear mechanism, change gear axle can not be rotated, cause reverse change gear mechanism and do not work, and normally work in the change gear mechanism of the forward of another side, by two spring duckbilled key asemblies, two break-ins on positive and negative two break-in main shafts, roll cooperatively interacting of key and the left and right swing of commutator, realize the positive and negative break-in function of forward and reverse change gear mechanism.
Principle of the present invention and feature are described below:
The present invention is intended to from the positive and negative direction-changing drive mechanism of the vacuum compressor accurate unimpeded of uncoupling and forward and reverse break-in not, on break-in main shaft, sequentially install the third change gear, fourth change gear and the second change gear of hollow, the commutator assembly that the installing of its break-in spindle top is comprised of commutation body, commutation gland, traveller and " C " shape groove of sliding for traveller, the excircle of body of wherein commutating is provided with external arc ear, has " C " shape groove sliding for traveller in the bottom surface corresponding with this external arc ear end positions; On this second change gear, installing drives commutation body around the forward and reverse swing of break-in main shaft, the forward and reverse motion by traveller in " C " shape groove by commutation transmitting assemblies; Realize its commutator assembly and piston toward the revesal consistent positive and negative break-in effect that matches; Two side steerings of the third change gear bilateral symmetry installing positive and negative direction on its break-in main shaft, two side steering forward and reverse gear synchronous driving mechanism of two a change gears in speed reducer drives, and this forward and reverse gear synchronous driving mechanism is comprised of input shaft, input gear, A transition gear axle, reduction gear, A transition gear, B transition gear axle, B transition gear, transition wheel support and axle sleeve; By its Synchronous Transmission Component driver, realize the synchronous rotation of the positive and negative direction of two a change gears; Each described side steering rolls key, spring duckbilled key asembly, b change gear, upper and lower end cap, free wheel device and free wheel device cover by change gear axle, a change gear, upper and lower axle sleeve, change gear axle and forms, owing to being provided with commutation assembly, buffer and duckbilled key asembly at forward and reverse side steering of the present invention, just can be by commutation the cooperatively interacting of assembly, Bunper assembly and spring duckbilled key asembly, make change gear axle in its forward and reverse side steering realize the break-in function of positive and negative direction.That the present invention has not only substituted is of the prior art, be easy to the reciprocating screw transmission mechanism of the jaw clutch of de-knot; And the present invention has the accurately feature such as unimpeded of forward and reverse break-in.
The comprehensive above technological scheme of taking, realizes object of the present invention.
Compared with prior art, the present invention is not only novel in design unique, compact structure, and both uncouplings not during transmission, forward and reverse break-in is accurately unimpeded again, and has reliable performance and the feature such as stable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
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 diagrams at the M place in Fig. 1;
Accompanying drawing 3 is along the enlarged diagram of analysing and observe of H-H line in Fig. 2;
Accompanying drawing 4 is along the enlarged diagram of analysing and observe of D-D line in Fig. 2;
Accompanying drawing 5 is along the enlarged diagram of analysing and observe of F-F line in Fig. 2;
Accompanying drawing 6 is along the enlarged diagram of analysing and observe of G-G line in Fig. 2;
Accompanying drawing 7 is along the enlarged diagram of analysing and observe of E-E line in Fig. 2;
Accompanying drawing 8 is along the enlarged diagram of analysing and observe of K-K line in Fig. 3;
Accompanying drawing 9 is along the enlarged diagram of analysing and observe of B-B line in Fig. 7;
Accompanying drawing 10 is enlarged diagrams that the change gear axle in Fig. 9 rolls key 12.
In figure: 1, free wheel device, 2, upper and lower end cap, 3, free wheel device cover, 4, ball, 5, upper Lower shaft sleeve, 6, a change gear, 7, deceleration box, 8, change gear axle, 9, commutation body, 10, traveller, 11, key is rolled in break-in, and 12, second change gear, 13, fourth change gear, 14, b change gear, 15, break-in case, 16, O type circle, 17, spring duckbilled key asembly, 18, the third change gear, 19, F transition gear, 20, first change gear, 21, G transition gear, 22, damping spring, 23, break-in main shaft, 24, output gear, 25, second change gear, 26, buffer, 27, speedup box, 28, commutation gland, 29, input gear, 30, gear box cover, 31, external arc ear, 32, input shaft, 33, reduction gear, 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, roll key spring, 43, hinge, 44, duckbilled spring, 45, D transition gear, 46, E transition gear.
Embodiment
Shown in Fig. 1,2,3,4,5,6,7,8,9,10, be specific embodiments of the invention, it is the positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor, its structure comprises deceleration box and forward and reverse gear synchronous driving mechanism, it is characterized in that: deceleration box 7 underruns are sealedly connected on the uncovered end face of break-in case 15, the positive and negative deviator that the described interior installing of break-in case 15 is driven by forward and reverse gear synchronous driving mechanism, described positive and negative deviator is comprised of break-in mainshaft mechanism and forward and reverse gear synchronous driving mechanism, described break-in mainshaft mechanism is comprised of break-in main shaft 23, first change gear 20, the third change gear 18, fourth change gear 13, second change gear 12, buffer and commutator, in these break-in case 15 middle part installing break-in main shafts 23, the top of described break-in main shaft 23 by bearings in deceleration box 7 bottom surfaces, the bottom of break-in main shaft 23 is stretched in speedup box 27 through bearing, keyed jointing first change gear 20 on the bottom of the break-in main shaft 23 in speedup box 27, break-in main shaft 2 in break-in case 15 more than the interior end) on, sequentially install the third change gear 18, fourth change gear 13 and the second change gear 12 of hollow, on the break-in main shaft 23 in the third described change gear 18 hollow cavities, install buffer, the commutator that described break-in main shaft 23 top installings are comprised of commutation body 9, commutation gland 28, traveller 10 and " C " shape groove sliding for traveller (10) and commutation transmitting assemblies, wherein break-in main shaft 23 tops are by the bearings body 9 that commutates, described commutation body 9 bottom surface installing commutation glands 28, described commutation gland 28 is fixed by screws on deceleration box 7 bottom surface boss, the excircle of commutation body 9 is provided with external arc ear 31, has " C " shape groove sliding for traveller 10 in the bottom surface corresponding with these external arc ear 31 end positions, the bottom of described traveller 10 is fixed on second change gear 12, on this second change gear 12, installing drives commutation body 9 around the forward and reverse swing of break-in main shaft 15 by commutator transmitting assemblies, and the forward and reverse motion through traveller 10 in " C " shape groove causes commutator to produce positive and negative turn around time poor, meanwhile, the two ends of external arc ear 31 are poor by positive and negative turn around time, roll key 11 alternate the touching that interlock with the break-in of positive and negative change gear axis mechanism, when a of forward change gear is worked along forward rotation, break-in is rolled key 11 and is flicked, duckbilled spring flicks duckbilled body, at this moment the circular arc cross section key section that the unidirectional ratchet on a change gear rolls key 11 with break-in after rotating touches mutually, drive change gear axle forward rotation, owing to being hinged on duckbilled body in change gear axle, flicking with change gear axle and together make forward rotation, so duckbilled body touches mutually with the unidirectional ratchet on b change gear, drive b change gear also to do forward rotation, above-mentioned motion state is also applicable to reverse change gear mechanism, it is the direction of rotation of change gear mechanism, when reverse change gear mechanism does not work, break-in roll key 11 be pressed in commutation body one end on, break-in is rolled in the circular arc cross-section segments and duckbilled body retraction change gear axle of key, thus change gear axle do not stop, a, b change gear become idling conditions, positive and negative turn around time by commutator is poor, realize the positive and negative commutation of the forward and reverse change gear mechanism of system control, positive and negative turn around time by commutator is poor, realize the positive and negative commutation of the forward and reverse change gear mechanism of system control, the bilateral symmetry of the third described change gear 18 is installed forward and reverse change gear mechanism, each described change gear mechanism is by change gear axle 8, a change gear 6, upper Lower shaft sleeve 5, key 11 is rolled in break-in, spring duckbilled key asembly 17, b change gear 14, upper and lower end cap 2, free wheel device 1 and free wheel device cover 3 form, the top of described change gear axle 8 by bearings in gear box cover 30, the bottom of change gear axle 8 by bearings at break-in case 15 at interior the end, be close on the change gear axle 8 of gear box cover 30 bottom surfaces and insert a change gear 6, between the axis hole of described a change gear 6 and change gear axle 8, leave spacing, a change gear 6 axis hole inner side surfaces are provided with unidirectional ratchet 41, on change gear axle 6 in described a change gear 6 top ends, sequentially install upper end cap 2 and free wheel device cover 3, in described free wheel device, overlap 3 and in-builtly enter free wheel device 1, free wheel device cover 3 is bolted on gear box cover 30, between described upper end cap 2 bottom surfaces and the surface of contact of a change gear 6, put several balls 4, on change gear axle 8 in the bottom of described a change gear 6, by the fixing Upper shaft sleeve 5 of jackscrew, between described Upper shaft sleeve 5 end faces and the surface of contact of a change gear 6, put several balls 4, on change gear axle 8 more than break-in case 15 inner bottom surface bearings, install free wheel device cover 3, this free wheel device cover 3 is bolted on break-in case 15 at interior the end, described free wheel device 1 packs in free wheel device cover 3, on change gear axle 8 in free wheel device cover more than 3, insert b change gear 14, between described b change gear 14 and change gear axle 8, leave spacing, b change gear 14 axis hole inner side surfaces are provided with unidirectional ratchet 41, in the lower end of described b change gear 14 by the fixing lower end cap 2 of screw, between described lower end cap 2 end faces and the surface of contact of b change gear 14, put several balls 4, in the top of described b change gear 14 by the fixing Lower shaft sleeve 5 of jackscrew, between described Lower shaft sleeve 5 bottom surfaces and the surface of contact of b change gear 14, put several balls 4, hinged spring duckbilled key asembly 17 in the inner side surface of the b change gear 14 in described b change gear 14, when described spring duckbilled key asembly 17 stretches outside b change gear by elastic force effect, this b change gear 14 is in running order, when this spring duckbilled key asembly 17, by elastic force effect, huddle up when break-in main shaft 23 is interior, this b change gear 14 is in idling conditions, on the change gear axle 8 corresponding with the every end position of described commutation body 9, install break-in and roll key 11, the upper and lower key section that is respectively equipped with identical circular arc cross section on the consistent cylindrical keys body of key 11 and a, b change gear axis hole height dimension is rolled in described break-in, the camber of described circular arc cross section is greater than the radius that key 11 is rolled in break-in, and the top of described upper key section is fixed on upper end cap 2 through the keyway that rolls in Upper shaft sleeve 5 and change gear axle 8, the bottom of described lower key section is fixed on lower end cap 2 through the keyway that rolls in Lower shaft sleeve 5 and change gear axle 8, the stage casing that key 11 is rolled in this break-in is provided with ratchet head, and described ratchet head connects the one end of rolling key spring 42, and the other end that rolls key spring 42 is connected on change gear axle 8, the ratchet head of key 11 is rolled in described break-in and external arc ear 31 one end of its commutation body 9 touch mutually, the ratchet head that key 17 is rolled in break-in in the change gear mechanism of forward 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 subject to stopping of a, the interior unidirectional ratchet 41 of b change gear axis hole, now a change gear 6 idle running of the change gear mechanism of this forward, change gear axle 8 can not be rotated, and the change gear mechanism of causing forward does not work, and normally work in the reverse change gear mechanism of another side, otherwise, the ratchet head that key 11 is rolled in break-in in reverse change gear mechanism applies pressure to the other end of the external circular arc ear 31 of corresponding commutator, meanwhile, this reverse upper and lower key section is not subject to stopping of a, the interior unidirectional ratchet 41 of b change gear axis hole, now a change gear 6 idle running of this reverse change gear mechanism, change gear axle 8 can not be rotated, cause reverse change gear mechanism and do not work, and normally work in the change gear mechanism of the forward of another side, by two spring duckbilled key asemblies 17, two break-ins on positive and negative two break-in main shafts 8, roll cooperatively interacting of key 11 and the left and right swing of commutator, realize the positive and negative break-in function of forward and reverse change gear mechanism.
Described gear box cover 30, deceleration box 7, break-in case 15 and speedup box 27 are the cylindrical shape that external diameter is identical.
Described transition wheel support 34 is the boss shape support body of being located at gear box cover 30 bottom surfaces, and described boss support body root is distributed with stiffening rib.
Connection between described gear box cover 30, deceleration box 7, break-in case 15, speedup box 27 adopts O RunddichtringO 16 to connect respectively.
" C " shape groove two ends of described commutation body 9 are semicircle, and the semicircle center of its every end is α with the angle of commutation body 9 diameters; The sizes values of described α angle depends on the size of piston stroke; When piston stroke is large, α angle value is just little; When piston stroke is large, α angle value is just large; The length of the circumference L of described external arc ear 31 depends on poor length turn around time of forward and reverse side steering, long when the poor time of commutation of two side steerings, and this circumference L is just long; Short when the poor time of commutation of two side steerings, this circumference L is just short.
Described commutation transmitting assemblies is comprised of C transition gear axle 10, E transition gear and D transition gear 45, and described second change gear 12 is meshed with the D transition gear 45 on C transition gear axle 35; Described fourth change gear 46 and 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 surfaces, the other end of its C transition gear axle 35 by bearings in speed reducer 7 bottom surfaces.
Described Bunper assembly is comprised 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 hollows, sequentially installs upper and lower buffer gland 25 and upper and lower buffer spring 22 on the break-in main shaft 23 of the upper and lower end of described buffer 26.
Described spring duckbilled key asembly 21 is comprised of duckbilled body, hinge 44 and duckbilled spring 45, in the inner side surface of described change gear axle 11, have the groove that holds duckbilled body, described duckbilled body is hinged in groove by hinge 43, the mouth end of this duckbilled body touches mutually with the ratchet head that change gear axle rolls key 19 stage casings, the other end of described duckbilled body connects one end of duckbilled spring 45, and the other end of described duckbilled spring 45 is connected on duckbilled body.
Described commutation transmitting assemblies is comprised of C transition gear axle 35, B transition gear axle 33, E transition gear 32 and D transition gear 31, and described second change gear 25 is meshed with the D transition gear 31 on B transition gear axle 33; Described fourth change gear 26 and E transition gear 32 on B transition gear axle 33 be meshed; Described B transition gear axle 33 one end by bearings in break-in case 49 bottom surfaces, the other end of its B transition gear axle 33 by bearings in speed reducer bottom surface.
In this specific embodiment, forward and reverse gear synchronous driving mechanism comprises the forward and reverse gear synchronous driving mechanism being comprised of reduction gear 33, A transition gear axle 38, A transition gear 39, B transition gear axle 36, B transition gear 38, transition wheel support 34 and axle sleeve 40.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; allly be familiar with those skilled in the art in technical scope disclosed by the invention, within being equal to and replacing or change protection scope of the present invention all should be encompassed according to technological scheme of the present invention and design of the present invention thereof.

Claims (8)

1. the positive and negative deviator of a kind of circulating positive and negative break-in speed change vacuum compressor described in, comprise deceleration box and forward and reverse gear synchronous driving mechanism, it is characterized in that: deceleration box (7) underrun is sealedly connected on the uncovered end face of break-in case (15), the positive and negative deviator that in described break-in case (15), installing is driven by forward and reverse gear synchronous driving mechanism, described positive and negative deviator is comprised of break-in mainshaft mechanism and forward and reverse gear synchronous driving mechanism, described break-in mainshaft mechanism is comprised of break-in main shaft (23), first change gear (20), the third change gear (18), fourth change gear (13), second change gear (12), buffer and commutator, in this break-in case (15) middle part installing break-in main shaft (23), the top of described break-in main shaft (23) by bearings in deceleration box (7) bottom surface, the bottom of break-in main shaft (23) is stretched in speedup box (27) through bearing, keyed jointing first change gear (20) on the bottom of the break-in main shaft (23) in speedup box (27), on break-in main shaft (23) in break-in case (15) more than the end, sequentially install the third change gear (18), fourth change gear (13) and the second change gear (12) of hollow, the upper installing of break-in main shaft (23) buffer in described the third change gear (18) hollow cavity, the commutator that described break-in main shaft (23) top installing is comprised of commutation body (9), commutation gland (28), traveller (10) and " C " shape groove sliding for traveller (10) and commutation transmitting assemblies, wherein break-in main shaft (23) top is by the bearings body (9) that commutates, described commutation body (9) bottom surface installing commutation gland (28), described commutation gland (28) is fixed by screws on the boss of deceleration box (7) bottom surface, the excircle of commutation body (9) is provided with external arc ear (31), has " C " shape groove sliding for traveller (10) in the bottom surface corresponding with this external arc ear (31) end positions, the bottom of described traveller (10) is fixed on second change gear (12), in the upper installing of this second change gear (12), by commutator transmitting assemblies, drive commutation body (9) around the forward and reverse swing of break-in main shaft (15), forward and reverse motion through traveller (10) in " C " shape groove, causes commutator to produce positive and negative turn around time poor, meanwhile, the two ends of external arc ear (31) are poor by positive and negative turn around time, roll key (11) alternate the touching that interlock with the break-in of positive and negative change gear axis mechanism, when a of forward change gear (6) is worked along forward rotation, break-in is rolled key (11) and is flicked, duckbilled spring flicks duckbilled body, at this moment the circular arc cross section key section that the unidirectional ratchet (41) on a change gear (6) rolls key (11) with break-in after rotating touches mutually, drive change gear axle (8) forward rotation, owing to being hinged on duckbilled body in change gear axle (8), flicking with change gear axle (8) and together make forward rotation, so duckbilled body touches mutually with the unidirectional ratchet on b change gear (14), drive b change gear (14) also to do forward rotation, above-mentioned movement locus state is also applicable to reverse change gear mechanism, it is the direction of rotation of change gear mechanism, when reverse change gear mechanism does not work, break-in is rolled key (11) and is pressed on commutation body (9) one end, break-in is rolled in the circular arc cross-section segments and duckbilled body retraction change gear axle of key (11), thus change gear axle do not stop, a, b change gear become idling conditions, positive and negative turn around time by commutator is poor, realize the positive and negative commutation of the forward and reverse change gear axis mechanism of system control, the bilateral symmetry of described the third change gear (18) is installed forward and reverse change gear mechanism, each described change gear mechanism is by change gear axle (8), a change gear (6), upper Lower shaft sleeve (5), key (11) is rolled in break-in, spring duckbilled key asembly (17), b change gear (14), upper and lower end cap (2), free wheel device (1) and free wheel device cover (3) form, the top of described change gear axle (8) by bearings in gear box cover (30), the bottom of change gear axle (8) by bearings in break-in case (15) at the end, be close on the change gear axle of gear box cover bottom surface and insert a change gear (6), between the axis hole of described a change gear and change gear axle (8), leave spacing, a change gear axis hole inner side surface is provided with unidirectional ratchet (41), on change gear axle (8) in described a change gear (6) top end, sequentially install upper end cap (2) and free wheel device cover (3), in described free wheel device cover (3) is in-built, enter free wheel device (1), free wheel device cover (3) is bolted on gear box cover (30), between the surface of contact of described upper end cap (2) bottom surface and a change gear (6), put several balls (4), change gear axle (8) in the bottom of described a change gear (6) is upper by the fixing Upper shaft sleeve (5) of jackscrew, between the surface of contact of described Upper shaft sleeve (5) end face and a change gear (6), put several balls (4), the upper installing of change gear axle (8) free wheel device cover (3) more than break-in case (15) inner bottom surface bearing, this free wheel device cover (3) is bolted on break-in case (15) at interior the end, described free wheel device (1) packs in free wheel device cover (3), on change gear axle (8) more than free wheel device cover (3), insert b change gear (14), between described b change gear (14) and change gear axle (8), leave spacing, b change gear (14) axis hole inner side surface is provided with unidirectional ratchet (41), in the lower end of described b change gear (14) by the fixing lower end cap (2) of screw, between the surface of contact of described lower end cap (2) end face and b change gear (14), put several balls (4), in the top of described b change gear (14) by the fixing Lower shaft sleeve (5) of jackscrew, between the surface of contact of described Lower shaft sleeve (5) bottom surface and b change gear (14), put several balls (4), hinged spring duckbilled key asembly (17) in the inner side surface of the b change gear (14) in described b change gear (14), hinged spring duckbilled key asembly (17) in the inner side surface of the b change gear (14) in described b change gear (14), when described spring duckbilled key asembly (17) stretches outside b change gear by elastic force effect, this b change gear (14) is in running order, and key (11) is rolled in change gear axle (8) the upper installing break-in corresponding with the every end position of described commutation body (9), the upper and lower key section that is respectively equipped with identical circular arc cross section on the consistent cylindrical keys body of key (11) and a, b change gear axis hole height dimension is rolled in described break-in, the camber of described circular arc cross section is greater than the radius that key (11) are rolled in break-in, and the top of described upper key section is fixed on upper end cap (2) through the keyway that rolls in Upper shaft sleeve (5) and change gear axle (8), the bottom of described lower key section is fixed on lower end cap (2) through the keyway that rolls in Lower shaft sleeve (5) and change gear axle (8), the stage casing that key (11) is rolled in this break-in is provided with ratchet head, and described ratchet head connects the one end of rolling key spring (42), and the other end that rolls key spring (42) is connected on change gear axle (8), the ratchet head of key (11) is rolled in described break-in and external arc ear (31) one end of its commutation body (9) touches mutually, the ratchet head that key (17) is rolled in break-in in the change gear mechanism of forward 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 subject to stopping of a, b change gear axis hole interior unidirectional ratchet (41), the now a change gear (6) of the change gear mechanism of this forward idle running, change gear axle (8) can not be rotated, and the change gear mechanism of causing forward does not work, and normally work in the reverse change gear mechanism of another side, otherwise, the ratchet head that key (11) is rolled in break-in in reverse change gear mechanism applies pressure to the other end of the external circular arc ear of corresponding commutator (31), meanwhile, this reverse upper and lower key section is not subject to stopping of a, b change gear axis hole interior unidirectional ratchet (41), the now a change gear (6) of this reverse change gear mechanism idle running, change gear axle (8) can not be rotated, cause reverse change gear mechanism and do not work, and normally work in the change gear mechanism of the forward of another side, by two spring duckbilled key asemblies (17), two break-ins on positive and negative two break-in main shafts (8), roll cooperatively interacting of key (11) and the left and right swing of commutator, realize the positive and negative break-in function of forward and reverse change gear mechanism.
2. by the positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor claimed in claim 1, it is characterized in that: described gear box cover (30), deceleration box (7), break-in case (15) and speedup box (27) are the cylindrical shape that external diameter is identical.
3. by the positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor claimed in claim 1, described transition wheel support (34) is the boss shape support body of being located at gear box cover (30) bottom surface, and described boss support body root is distributed with stiffening rib.
4. by the positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor claimed in claim 1, it is characterized in that: the connection between described gear box cover (30), deceleration box (7), break-in case (15), speedup box (27) adopts O RunddichtringO (16) to connect respectively.
5. by the positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor claimed in claim 1, it is characterized in that: described commutation transmitting assemblies is comprised of C transition gear axle (35), E transition gear (46) and D transition gear (45), described second change gear (25) is meshed with the D transition gear (45) on C transition gear axle (35); Described fourth change gear (46) and E transition gear (13) on C transition gear axle (35) be meshed; Described C transition gear axle (35) one end by bearings in break-in case (7) bottom surface, the other end of its C transition gear axle (35) by bearings in speed reducer (7) bottom surface.
6. by the positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor claimed in claim 1, it is characterized in that: described buffer is comprised of buffer cylinder (26), upper lower cover (25) and upper and lower damping spring (22), the upper keyed jointing buffer cylinder (26) of break-in main shaft (23) in described the third change gear (18) hollow, the upper and lower end of described buffer cylinder (26) is installed respectively lower cover (25) and upper and lower damping spring (22).
7. by the positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor claimed in claim 1, it is characterized in that: described spring duckbilled key asembly (17) is by duckbilled body, hinge (43) and duckbilled spring (44) form, in the inner side surface of described change gear axle (8), have the groove that holds duckbilled body, described duckbilled body is hinged in groove by hinge (43), the sharp nozzle end of this duckbilled body rolls key section under key (11) with break-in and touches mutually, the other end of described duckbilled body connects one end of duckbilled spring (44), the other end of described duckbilled spring (44) is connected on change gear axle (8).
8. by the positive and negative deviator of circulating positive and negative break-in speed change vacuum compressor claimed in claim 1, it is characterized in that: " C " shape groove two ends of described commutation body (9) are for semicircle, and the semicircle center of its every end is α with the angle of commutation body (9) diameter; The sizes values of described α angle depends on the size of piston stroke; When piston stroke is large, α angle value is just little; When piston stroke is large, α angle value is just large; The length of the circumference L of described external arc ear (31) depends on poor length turn around time of forward and reverse side steering, long when the poor time of commutation of two side steerings, and this circumference L is just long; Short when the poor time of commutation of two side steerings, this circumference L is just short.
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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060191366A1 (en) * 2003-03-14 2006-08-31 Ab Skf Forward-reverse control device
JP2009062870A (en) * 2007-09-06 2009-03-26 I & T:Kk Air pump
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
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