CN103696935A - Circulating type forward and reverse speed changing vacuum compressor - Google Patents
Circulating type forward and reverse speed changing vacuum compressor Download PDFInfo
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- CN103696935A CN103696935A CN201310714945.5A CN201310714945A CN103696935A CN 103696935 A CN103696935 A CN 103696935A CN 201310714945 A CN201310714945 A CN 201310714945A CN 103696935 A CN103696935 A CN 103696935A
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Abstract
The invention belongs to vacuum compressors and relates to a circulating type forward and reverse speed changing vacuum compressor. The circulating type forward and reverse speed changing vacuum compressor is characterized in that a vacuum compression device is driven by a forward and reverse speed changing electric transmission mechanism, the forward and reverse speed changing electric transmission mechanism drives a forward and reverse speed changing transmission device through a motor driving assembly, wherein the forward and reverse speed changing transmission device is composed of a reducing assembly, a forward and reverse rotation gear assembly, a direction changing device and an increasing device; the electric transmission device which is processed under high speed, speed reduction, direction changing and speed increasing drives the tandem piston unit of the vacuum compression device to move reciprocatingly inside the a hydraulic compression cylinder. The circulating type forward and reverse speed changing vacuum compressor achieves the efficient function of integrating vacuumization and compression and is reasonable in design and compact in structure, can achieve forward and reverse direction changing and speed increasing and has the advantages of having a high-speed driving function, improving the vacuumization and compression efficiency, being reliable in performance and stable in operation and the like.
Description
Technical field
The invention belongs to vacuum compression machinery, particularly a kind 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 by support, motor, band transmission, follower, back shaft, gear transmission reversing mechanism, hollow shaft, bearing support, hollow leading screw, screw, screw sleeve pipe, connecting sleeve, reversing bar, the electric transmission of the spiral reciprocating type that spring mechanism and jaw clutch form, the commutation of the reversing bar in the electric transmission of its spiral reciprocating type 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, the vacuum compression device that total air escape pipe and total inlet pipe form, piston series connection group in vacuum compression dress, continuous past in cylinder body, return motion, realizing this vacuum compressor integrates and vacuumizes and compression function.Although the structure of the more above-mentioned reciprocating vacuum pump of this reciprocating screw vacuum compressor and reciprocal compressor, there is progress, topmost shortcoming is that jaw clutch is easy to de-knot when normal work and electric actuator 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 drives positive and negative break-in speed changing type transmission device by support, motor and the motor drive component that forms with transmission, 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, and wherein 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.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 break-in assembly; 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 positive and negative break-in speed changing type transmission device with high rotating speed drive piston series connection group in vacuum compression device constantly vacuum compression cylinder body past, return motion, realize the efficient function that vacuumizes with compress of this vacuum compressor; For this reason, require circulating positive and negative break-in speed change vacuum compressor vacuum compressor, must there is compactness rational in infrastructure, output speed is higher and transmission performance is reliable and stable function.Therefore, innovative development adopts positive and negative break-in speed changing type electric actuator to drive circulating positive and negative break-in speed change vacuum compressor, is very necessary.
Summary of the invention
The present invention is intended to the shortcoming and defect part existing in above-mentioned technology, grasping and making the output shaft of transmission device drive vacuum compression device to set out with high rotating speed, adopt the transmission device of the technological scheme of high speed → deceleration → break-in → speedup, and a kind of circulating positive and negative break-in speed change vacuum compressor is provided; This positive and negative break-in speed change vacuum compressor is not only reasonable in design, and compact structure can positive and negative break-in, again can speedup, and there is high output speed and drive function, improve vacuum compressor and vacuumize and the efficiency of compressing, the feature such as transmission performance is reliable and stable.
The object of the invention is to adopt following technical scheme to realize: described circulating positive and negative break-in speed change vacuum compressor, comprise electric transmission, vacuum compression device, it is characterized in that: by positive and negative break-in speed changing type electric transmission, drive vacuum compression device, described positive and negative break-in speed changing type electric transmission drives positive and negative break-in speed changing type transmission device by motor drive component, described positive and negative break-in speed changing type transmission device is by deceleration device, forward and reverse gear synchronous driving mechanism, positive and negative deviator and speeder composition, through described deceleration device, forward and reverse gear synchronous driving mechanism, positive and negative deviator and speeder, the high rotating speed of input is decelerated to after the slow-speed of revolution and positive and negative break-in by deceleration assembly, by speeder, the low speed speedup after positive and negative break-in is arrived to high output speed again, through this high output speed drive piston series connection group in vacuum compression device constantly in vacuum compression cylinder body past, return motion, make vacuum compressor realize having and vacuumize and the efficient function that is compressed in one, described deceleration device is comprised of A transition gear and the A transition gear axle of deceleration box, gear box cover, power shaft, input gear, deceleration, with power shaft one end of transmission, be connected on the driven pulley with transmission, the other end of described power shaft through gear box cover by bearings in deceleration box inner bottom surface, be close to the power shaft keyed jointing input gear of deceleration box inner bottom surface, described input gear is meshed with the A transition gear on A transition gear axle, one end of described A transition gear axle by bearings in deceleration box inner bottom surface, the other end of A transition gear axle by bearings in gear box cover, in this A transition gear axle top, install forward and reverse gear synchronous driving mechanism, described forward and reverse gear synchronous driving mechanism is comprised of B transition gear, axle sleeve, C transition gear, C transition gear axle and transition wheel support, keyed jointing B transition gear on A transition gear axle, one side of described B transition gear is meshed with a change gear of forward, the opposite side of this B transition gear is meshed with C transition gear one side on C transition gear axle, and the opposite side of described C transition gear is meshed with reverse a change gear, one end of described C transition gear axle by bearings in gear box cover, the other end of C transition gear axle by bearings in the transition wheel support of gear box cover, described transition wheel support is connected on gear box cover bottom surface, on A transition gear axle between described A transition gear and B transition gear, install axle sleeve, by B transition gear, realize the forward and reverse rotation of two a change gears, 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 positive and negative change gear axis 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, commutator and buffer, in this break-in case middle part installing break-in main shaft, the top of described break-in main shaft by bearings in reduction box bottom surface, the bottom of break-in main shaft is stretched in gearbox through bearingKeyed jointing first change gear on the bottom of the break-in main shaft in gearbox, on break-in main shaft in break-in case more than the end, sequentially install the third change gear, fourth change gear and second change gear and the commutator of hollow, on the break-in axle in the third described change gear cavity, install buffer, the commutator that the installing of described break-in spindle top is comprised of commutation body, commutator gland, traveller and " C " shape groove sliding for traveller and commutation transmission component, wherein break-in main shaft top is by the bearings body that commutates, described commutation body bottom surface installing commutator gland, described commutator 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 the forward and reverse swing to axle around main transformer of commutation body, the forward and reverse motion by traveller in " C " shape groove by commutation transmission component, cause commutator to produce positive and negative commutating period poor, meanwhile, the two ends of external arc ear are poor by positive and negative commutating period, 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 movement locus state is also applicable to reverse change gear axis mechanism, the just direction of rotation of change gear axis mechanism, when reverse change gear axis mechanism is not worked, break-in roll key press 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 commutating period by commutator is poor, realize the positive and negative commutation of the forward and reverse change gear mechanism of system control, positive and negative commutating period 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 positive and negative change gear axis mechanism, described each change gear axis mechanism is by change gear axle, a change gear, upper and lower axle sleeve, key is rolled in break-in, duckbilled key asembly, b change gear, upper and lower end cap, freewheel clutch and freewheel clutch cover composition, 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 described a change gear axis hole and change gear axle, leave spacing, a change gear axis hole medial surface is provided with unidirectional ratchet, on change gear axle in described a change gear top end face, sequentially install upper end cover and freewheel clutch cover, in described freewheel clutch cover in-built enter freewheel clutch, freewheel clutch cover is bolted on gear box cover,Between described upper end cover bottom surface and the contact-making surface of a change gear, put several balls, on change gear axle in the bottom of described a change gear, by jackscrew, fix Upper shaft sleeve, between described Upper shaft sleeve end face and the contact-making surface of a change gear, put several balls; On change gear axle more than break-in case inner bottom surface bearing, install freewheel clutch cover, this freewheel clutch cover is bolted at the interior end of break-in case, described freewheel clutch packs in freewheel clutch cover, on change gear axle more than freewheel clutch cover, insert b change gear, between described b change gear and change gear axle, leave spacing, b change gear axis hole medial surface is provided with unidirectional ratchet; In the lower end of described b change gear, by screw, fix bottom end cover, between described bottom end cover end face and the contact-making surface of b change gear, put several balls, in the top of described b change gear, by jackscrew, fix Lower shaft sleeve, between described Lower shaft sleeve bottom surface and the contact-making surface of b change gear, put several balls, hinged spring duckbilled key asembly in the medial surface of the change gear axle in described b change gear; When described spring duckbilled key asembly stretches outside change gear axle by elastic force effect, this change gear axle is in running order, when this spring duckbilled key asembly is huddled up in change gear axle by elastic force effect, this change gear axle is in idling conditions; On the change gear axle corresponding with the every end position of described commutation body, install break-in and roll key; The upper and lower key section that is respectively equipped with identical circular arc cross 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 break-in rolls the radius of key, and the top of described upper key section is fixed on upper end cover through the keyway that rolls in Upper shaft sleeve and change gear axle; The bottom of described lower key section is fixed on bottom end cover 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 that key is rolled in described break-in touches mutually with external arc ear one end of commutation body; The ratchet head of rolling key when the break-in in the change gear axis 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 axis 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 the reverse change gear axis mechanism of another side is normally worked; Otherwise, the ratchet head of rolling key when the break-in in reverse change gear axis 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, the now a change gear of this reverse change gear axis mechanism idle running, change gear axle can not be rotated, cause reverse change gear axis mechanism and do not work; And normally work in the change gear axis mechanism of the forward of another side; By two spring duckbilled key asemblies, two break-ins on positive and negative two change gear axles, roll cooperatively interacting of key and the left and right swing of commutator,Realize the positive and negative break-in function of positive and negative change gear axis mechanism, described gearbox is sealedly connected on break-in case bottom surface, in first change gear in gearbox, install speeder, described speeder is by output shaft, output shaft end cap, adapter sleeve, upper and lower applanation bearing, sealing ring, bearing, the output gear of speedup and speed increasing gear assembly composition, the top of described output shaft by bearings in the bottom surface of first change gear, the bottom of this output shaft is through gearbox, vacuum compression cylinder body and output shaft end cap stretch outside output shaft end cap, its output shaft end stretching outside output shaft end cap is connected with adapter sleeve, described output shaft end cap is fixed by screws on gearbox bottom surface, output shaft step upper and lower side in output shaft end cap is installed respectively upper and lower applanation bearing, sequentially installs the output gear of sealing ring, bearing and speedup on output shaft more than described upper applanation bearing, on described output gear, install speed increasing gear assembly, mat speed increasing gear assembly increases the output speed of output gear, makes output gear drive output shaft high speed rotating, by high output speed drive piston series connection group in vacuum compression device constantly in vacuum compression cylinder body past, return motion, realize the efficient function that vacuumizes with compress of the vacuum compressor of circulating positive and negative break-in speed change.
Principle of the present invention and feature are described below: the output shaft of transmission device of the present invention is intended to drive with high rotating speed the object of vacuum compression device, adopt the transmission device technological scheme of high speed → deceleration → break-in → speedup, a kind of motor on support of design innovation is driven or directly by motor, is driven positive and negative break-in speed changing type transmission device by band transmission, and its positive and negative break-in speed changing type transmission device is comprised of gear assembly, deviator and the speeder of the assembly that slows down, positive and negative rotation, its deceleration assembly is comprised of deceleration box, gear box cover, input shaft, input gear, A transition gear, A transition gear axle, B transition gear, axle sleeve, C transition gear, C transition gear axle and transition wheel support, its deviator is comprised of break-in mainshaft mechanism and forward and reverse change gear mechanism, wherein break-in mainshaft mechanism is by break-in main shaft, first change gear, the third change gear, fourth change gear, second change gear, commutator and buffer form, the bilateral symmetry of its third change gear is installed forward and reverse change gear mechanism, wherein each change gear mechanism is by change gear axle, a change gear, upper and lower axle sleeve, key is rolled in break-in, duckbilled key asembly, b change gear, upper and lower end cap, free wheel device and free wheel device cover form, its speeder is by output shaft, output shaft end cap, connecting sleeve, upper and lower applanation bearing, seal ring, bearing, the output gear of speedup and overdrive gear assembly form.Owing to having installed commutator, buffer and spring duckbilled key asembly in break-in mainshaft mechanism, its buffer forms by cushioning body, buffering gland and buffer spring; Its spring duckbilled key asembly is comprised of duckbilled body, hinge and duckbilled spring, its commutator is comprised of the body that commutates, commutator gland, traveller and " C " shape groove sliding for traveller and commutation transmitting assemblies, by cooperatively interacting of buffer and spring duckbilled key asembly, just can make commutator by swinging the break-in function that generation time is poor, realize positive and negative direction by two change gear axles in forward and reverse change gear 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-described 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.So, by gear assembly, break-in mainshaft mechanism and forward and reverse change gear mechanism and speeder of deceleration assembly, positive and negative rotation, the high rotating speed of input is down to after the slow-speed of revolution and variable speed, again speeder is arrived slow-speed of revolution speedup to the high rotating speed of output shaft, by the output shaft in its positive and negative break-in speed changing type transmission device with high rotating speed drive piston series connection group in vacuum compression device constantly vacuum compression cylinder body past, return motion, realize vacuumizing and the efficient function that is compressed in one of circulating positive and negative break-in speed change vacuum compressor.
The comprehensive above technological scheme of taking, realizes object of the present invention.
Compared with prior art, the present invention is not only reasonable in design, and compact structure can positive and negative break-in, again can speedup, and there is high output speed and drive function, and improve vacuum compressor and vacuumize and the efficiency of compressing, the feature such as transmission performance is reliable and stable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
The present invention has 13 width accompanying drawings.Wherein:
Accompanying drawing 1 be the specific embodiment of the invention main TV structure schematic diagram;
Accompanying drawing 2 is along the enlarged diagram of analysing and observe of A-A line in Fig. 1;
Accompanying drawing 3 is the enlarged diagrams at the M place in Fig. 2;
Accompanying drawing 4 is along the enlarged diagram of analysing and observe of F-F line in Fig. 3;
Accompanying drawing 5 is along the enlarged diagram of analysing and observe of G-G line in Fig. 3;
Accompanying drawing 6 is along the enlarged diagram of analysing and observe of H-H line in Fig. 3;
Accompanying drawing 7 is along the enlarged diagram of analysing and observe of J-J line in Fig. 3;
Accompanying drawing 8 is along the enlarged diagram of analysing and observe of D-D line in Fig. 3;
Accompanying drawing 9 is along the enlarged diagram of analysing and observe of E-E line in Fig. 3;
Accompanying drawing 10 is along the enlarged diagram of analysing and observe of K-K line in Fig. 6;
Accompanying drawing 11 is enlarged diagrams of single change gear axle 11;
Accompanying drawing 12 is enlarged diagrams that key 19 is rolled in single break-in;
Accompanying drawing 13 is along the enlarged diagram of analysing and observe of B-B line in Fig. 7.
In figure: 1, deceleration box, 2, input shaft, 3, input gear, 4, transition wheel support,
5, C transition gear axle, 6, C transition gear, 7, A transition gear axle, 8, B transition gear,
9, axle sleeve, 10, A transition gear, 11, change gear axle, 12, a change gear,
13, b change gear, 14, free wheel device cover, 15, upper and lower axle sleeve, 16, upper and lower end cap,
17, motor, 18, gear box cover, 19, break-in rolls key, 20, band transmission,
21, spring duckbilled key asembly, 22, commutation body, 23, commutator gland, 24, break-in main shaft,
25, second change gear, 26, fourth change gear, the 27, third change gear, 28, buffer cylinder,
29, upper lower cover, 30, upper and lower damping spring, 31, D transition gear, 32, E transition gear,
33, B transition gear axle, 34, first change gear, 35, output shaft, 36, output gear,
37, output shaft end cap, 38, D transition gear axle, 39, F transition gear, 40, G transition gear,
41, vacuum compression cylinder body, 42, ball, 43, traveller, 44, hinge, 45, duckbilled spring,
46, free wheel device, 47, bearing, 48, support, 49, break-in case, 50, speedup box,
51, applanation bearing, 52, connecting sleeve, 53, leading screw, 54, screw, 55, piston fixed cover,
56, piston shaft, 57, unidirectional ratchet, 58, external arc ear, 59, seal ring, 60, roll key spring,
61, E transition gear axle, 62, H transition gear, 63, K transition gear.
Embodiment
Fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, shown in 13, be specific embodiments of the invention, it is circulating positive and negative break-in speed change vacuum compressor, comprise electric transmission, vacuum compression device, it is characterized in that: by positive and negative break-in speed changing type electric transmission, drive vacuum compression device, described positive and negative break-in speed changing type electric transmission drives positive and negative break-in speed changing type transmission device by motor drive component, described positive and negative break-in speed changing type transmission device (as shown in Figure 3) is by deceleration device, forward and reverse gear synchronous driving mechanism, positive and negative deviator and speeder composition, through described deceleration device, forward and reverse gear synchronous driving mechanism, positive and negative deviator and speeder, the high rotating speed of input is decelerated to after the slow-speed of revolution and positive and negative break-in by deceleration assembly, by speeder, the low speed speedup after positive and negative break-in is arrived to high output speed again, through this high output speed drive piston series connection group in vacuum compression device constantly in vacuum compression cylinder body 41 past, return motion, make circulating positive and negative break-in speed change vacuum compressor realize having and vacuumize and the efficient function that is compressed in one, described deceleration device (as shown in Figure 3) is by deceleration box 1, gear box cover 18), power shaft 2, input gear 3, the A transition gear 10 and the A transition gear axle 7 that slow down form, power shaft 2 one end with transmission 20 are connected on the driven pulley with transmission 20, the other end of described power shaft 2 through gear box cover 18 by bearings in deceleration box 1 inner bottom surface, be close to keyed jointing input gear 3 on the power shaft 2 of deceleration box 1 inner bottom surface, described input gear 3 is meshed with the A transition gear 10 on A transition gear axle 7, one end of described A transition gear axle 7 by bearings in deceleration box 1 inner bottom surface, the other end of A transition gear axle 7 by bearings in gear box cover 18, in these A transition gear axle 7 tops, install forward and reverse gear synchronous driving mechanism, described forward and reverse gear synchronous driving mechanism (as shown in Figure 3,4) is comprised of B transition gear 8, axle sleeve 9, C transition gear 6, C transition gear axle 5 and transition wheel support 4, keyed jointing B transition gear 8 on A transition gear axle 7, one side of described B transition gear 8 is meshed with a change gear 12 of forward, the opposite side of this B transition gear 8 is meshed with C transition gear 6 one sides on C transition gear axle 5, and the opposite side of described C transition gear 6 is meshed with reverse a change gear 12, one end of described C transition gear axle 5 by bearings in gear box cover 18, the other end of C transition gear axle 5 by bearings in the transition wheel support 4 of gear box cover 18, described transition wheel support 4 is fixed by screws on gear box cover 18 bottom surfaces, on A transition gear axle 7 between described A transition gear 10 and B transition gear 8, install axle sleeve 9, by B transition gear 8, realize the forward and reverse rotation of two a change gears 12, deceleration box 1 underrun is sealedly connected on the uncovered end face of break-in case 49, the described interior installing of break-in case 49 drives positive and negative deviator by forward and reverse gear synchronous driving mechanism, described positive and negative deviator (as Fig. 3,6,Shown in 11) by break-in mainshaft mechanism and positive and negative change gear axis mechanism, formed; Described break-in mainshaft mechanism (as shown in Figure 3) is comprised of break-in main shaft 24, first change gear 34, the third change gear 27, fourth change gear 26, second change gear 25, commutator and buffer, in these break-in case 49 middle part installing break-in main shafts 24, the top of described break-in main shaft 24 by bearings in deceleration box 1 bottom surface, the bottom of break-in main shaft 24 is stretched in gearbox 50 through bearing, keyed jointing first change gear 34 on the bottom of the break-in main shaft 24 in gearbox 50; On break-in main shaft 24 more than the interior end of break-in case 49, sequentially install the third change gear 27, fourth change gear 26 and second change gear 25 and the commutator of hollow, installing (as shown in Figure 3) buffer on the break-in main shaft 24 in the third described change gear 27 cavities; The commutator (as shown in Fig. 6,10) that the 24 tops installings of described break-in main shaft are comprised of commutation body 22, commutator gland 23, traveller 43 and " C " shape groove sliding for traveller 43 and commutation transmission component, wherein break-in main shaft 24 tops are by the bearings body 22 that commutates; Described commutation body 22 bottom surface installing commutator glands 23, described commutator gland 23 is fixed by screws on deceleration box 1 bottom surface boss; The excircle of commutation body 22 is provided with external arc ear 58, has " C " shape groove sliding for traveller 43 in the bottom surface corresponding with these external arc ear 58 end positions; The bottom of described traveller 43 is fixed on second change gear 25; On this second change gear 25, installing drives the forward and reverse swing to axle 24 around main transformer of commutation body 22, the forward and reverse motion by traveller 43 in " C " shape groove by commutation transmission component; Cause commutator to produce positive and negative commutating period poor; Meanwhile, the two ends of external arc ear 58 are poor by positive and negative commutating period, roll key 19 alternate the touching that interlock with the break-in of positive and negative change gear axis mechanism; When a of forward change gear 12 is worked along forward rotation, break-in is rolled key 19 and is flicked, duckbilled spring flicks duckbilled body, at this moment the circular arc cross section key section that unidirectional ratchet on a change gear 12 57 rolls key 19 with break-in after rotating touches mutually, drive change gear axle 11 forward rotation, owing to being hinged on duckbilled body in change gear axle 11, flicking with change gear axle 11 and together make forward rotation, so duckbilled body touches mutually with the unidirectional ratchet 57 on b change gear 13, drive b change gear 13 also to do forward rotation; Above-mentioned movement locus state is also applicable to reverse change gear axis mechanism; The just direction of rotation of change gear axis mechanism; When reverse change gear axis mechanism is not worked, break-in is rolled key 19 and is pressed on commutation body one end, break-in is rolled in the circular arc cross-section segments and duckbilled body retraction change gear axle of key 19, thus change gear axle 11 do not stop, a, b change gear become idling conditions; Positive and negative commutating period by commutator is poor; Realize the positive and negative commutation of the forward and reverse change gear mechanism of system control; Positive and negative commutating period by commutator is poor; Realize the positive and negative commutation of the positive and negative change gear axis mechanism of system control;The bilateral symmetry of the third described change gear 27 is installed (as Fig. 3, 4, 8, shown in 9) positive and negative change gear axis mechanism, described each change gear axis mechanism is by change gear axle 11, a change gear 12, upper and lower axle sleeve 15, key 19 is rolled in break-in, duckbilled key asembly 21, b change gear 13, upper and lower end cap 16, freewheel clutch 46 and freewheel clutch cover 14 compositions, described change gear axle 11(is as shown in figure 11) top by bearings in gear box cover 18, the bottom of change gear axle 11 by bearings within the interior end of break-in case 49, be close on the change gear axle 11 of gear box cover 18 bottom surfaces and insert a change gear 12, between described a change gear 12 axis holes and change gear axle 11, leave spacing, a change gear 12 axis hole medial surfaces are provided with unidirectional ratchet 57, on change gear axle 11 in described a change gear 12 top end faces, sequentially install upper end cover 16 and freewheel clutch cover 14, in described freewheel clutch overlap 14 in-built enter freewheel clutch 46, freewheel clutch cover 14 is bolted on gear box cover 18, between described upper end cover 16 bottom surfaces and the contact-making surface of a change gear 12, put several balls 42, on change gear axle 11 in the bottom of described a change gear 12, by jackscrew, fix Upper shaft sleeve 15, between described Upper shaft sleeve 15 end faces and the contact-making surface of a change gear 12, put several balls 42, on change gear axle 11 more than break-in case 49 inner bottom surface bearings, install freewheel clutch cover 14, this freewheel clutch cover 14 is bolted at the interior end of break-in case 49, described freewheel clutch 46 packs in freewheel clutch cover 14, in freewheel clutch, overlap on more than 14 change gear axles 11 and insert b change gear 13, between described b change gear 13 and change gear axle 11, leave spacing, b change gear 13 axis hole medial surfaces are provided with unidirectional ratchet 57, in the lower end of described b change gear 13, by screw, fix bottom end cover 16, between described bottom end cover 16 end faces and the contact-making surface of b change gear 13, put several balls 42, in the top of described b change gear 13, by jackscrew, fix Lower shaft sleeve 15, between described Lower shaft sleeve 15 bottom surfaces and the contact-making surface of b change gear 13, put several balls 42, hinged spring duckbilled key asembly 21 in the medial surface of the change gear axle 11 in described b change gear 13, when described spring duckbilled key asembly 21 stretches when change gear axle 11 is outer by elastic force effect, this change gear axle 11 is in running order, when this spring duckbilled key asembly 21 by elastic force effect retraction when change gear axle 11 is interior, this change gear axle 11 is in idling conditions, on the change gear axle 11 corresponding with the described every end position of commutation body 22, install break-in and roll key 19(as shown in figure 12), the upper and lower key section that is respectively equipped with identical circular arc cross section on the consistent cylindrical keys body of key 19 and a, b change gear axis hole height dimension is rolled in described break-in, and the camber of described circular arc cross section is greater than break-in rolls the radius of key 19,The top of described upper key section is fixed on upper end cover 16 through the keyway that rolls in Upper shaft sleeve 15 and change gear axle 11, the bottom of described lower key section is fixed on bottom end cover 16 through the keyway that rolls in Lower shaft sleeve 15 and change gear axle 11, the stage casing that key 19 is rolled in this break-in is provided with ratchet head, and described ratchet head connects the one end of rolling key spring 60, and the other end that rolls key spring 60 is connected on change gear axle 11, the ratchet head of key 19 is rolled in described break-in and external arc ear 58 one end of its commutation body 22 touch mutually, the ratchet head of rolling key 19 when the break-in in the change gear mechanism of forward applies pressure to the external circular arc ear of corresponding commutator 58 one end, and the upper and lower key section of this forward is not subject to stopping of a, the interior unidirectional ratchet 57 of b change gear axis hole, now a change gear 12 of the change gear mechanism of this forward dallies, change gear axle 11 can not be rotated, cause the change gear axis mechanism of forward and do not work, and normally work in the reverse change gear axis mechanism of another side, otherwise, the ratchet head of rolling key 19 when the break-in in reverse change gear axis mechanism applies pressure to the other end of the external circular arc ear 58 of corresponding commutator, meanwhile, this reverse upper and lower key section is not subject to stopping of a, the interior unidirectional ratchet 57 of b change gear axis hole, now a change gear 12 of this reverse change gear axis mechanism dallies, change gear axle 11 can not be rotated, cause reverse change gear axis mechanism and do not work, and the change gear axis mechanism of the forward of another side is normally worked, by two spring duckbilled key asemblies 21, two break-ins on positive and negative two break-in axles 11, roll cooperatively interacting of key 19 and the left and right swing of commutator, realize the positive and negative break-in function of forward and reverse change gear mechanism, described gearbox 50 is sealedly connected on break-in case 49 bottom surfaces, the interior installing speeder of first change gear 34 in gearbox 50, described speeder is (as Fig. 3, shown in 7) by output shaft 35, output shaft end cap 37, adapter sleeve 52, upper and lower applanation bearing 51, sealing ring 59, bearing 47, the output gear 36 of speedup and speed increasing gear assembly composition, the top of described output shaft 35 by bearings in the bottom surface of first change gear 34, the bottom of this output shaft 35 is through gearbox 50, vacuum compression cylinder body 41 and output shaft end cap 37 stretch outside output shaft end cap 37, output shaft 35 ends that stretch outside output shaft end cap 37 are connected with adapter sleeve 52, described output shaft end cap 37 is fixed by screws on gearbox 50 bottom surfaces, output shaft 35 step upper and lower sides in output shaft end cap 37 are installed respectively upper and lower applanation bearing 51, sequentially install the output gear 36 of sealing ring 59, bearing 47 and speedup on more than 51 output shaft 35 of described upper applanation bearing, on described output gear 36, install speed increasing gear assembly, mat speed increasing gear assembly increases the output speed of output gear 36, makes output gear 36 drive output shaft 35 high speed rotating, by high output speed drive piston series connection group in vacuum compression device constantly in vacuum compression cylinder body past, return motion,Realize the efficient function that vacuumizes with compress of the vacuum compressor of circulating positive and negative break-in speed change.
Described motor drive component (as shown in Figure 1, 2) is comprised of support 48, motor 17 and band transmission 20, the motor 17 connecting band transmissions 20 on support 48; Or the motor on support 48 17 is by shaft coupling mode, realizes and directly drives the input shaft 2 of positive and negative break-in speed changing type transmission device by motor 17.Adopt in the present embodiment the motor 17 connecting band transmissions 20 on support 48.
Described positive and negative break-in speed changing type transmission device and the profile of vacuum compression device are cylindrical shape.
Described break-in case 49 respectively adopts O type circle with described speedup box 50 with being tightly connected of break-in case 49 bottom surfaces with being tightly connected of deceleration box 1 bottom surface.
Described commutation transmitting assemblies (as shown in Figure 6) is comprised of 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 speedup box 1 bottom surface.
Described buffer is comprised of buffer cylinder 28, upper lower cover 29 and upper and lower damping spring 30, keyed jointing buffer cylinder 28 on break-in main shaft 24 in the third described change gear 27 hollows, sequentially installs upper and lower gland 29 and upper and lower buffer spring 30 on the break-in main shaft 24 of the upper and lower end of described buffer cylinder 28.
Described spring duckbilled key asembly 21(is as shown in Figure 9) by duckbilled body, hinge 44 and duckbilled spring 45 form, 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 top of described hinge 43 is hinged in Lower shaft sleeve 15, in the hinged duckbilled body in bottom of hinge 43, the sharp nozzle end of duckbilled body rolls 19 times key sections of key with spring break-in and touches mutually, realizing duckbilled body moves in groove by hinge 43, between this duckbilled body tail end and groove inwall, install more than one duckbilled spring 45, insert in the spring eye of duckbilled body one end of each described duckbilled spring 45, in the other end insertion groove inwall of duckbilled spring 45.
" C " shape groove two ends of described commutation body 22 are semicircle (as shown in Figure 8), and the semicircle center of its every end is α with the angle of commutation body 22 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 58 depends on poor length turn around time of forward and reverse change gear mechanism, and the poor time of commutation of Dang Liang change gear mechanism is long, and this circumference L is just long; The poor time of commutation of Dang Liang change gear mechanism is short, and this circumference L is just short.
Described overdrive gear assembly (as shown in Fig. 7,13) is comprised of K transition gear 63, H transition gear 62 and E transition gear axle 61, D transition gear axle 38, F transition gear 39 and G transition gear 40, between described output gear 36 and G transition gear 40 speedup box 50 inner bottom surfaces on by bearing, install E transition gear axle 61, sequentially keyed jointing H transition gear 62 and K transition gear 63 on described E transition gear axle 61, described K transition gear 63 is meshed with G transition gear 40, and described H transition gear 62 is meshed with output gear 36; The bottom of described D transition gear axle 38 by bearings in speedup box 50 inner bottom surfaces, the top of its D transition gear axle 38 is by bearings in the boss on speedup box 50 interior tops, and described first change gear 34 is meshed with the F transition gear 39 on D transition gear axle 38.
The step-down ratio of described speed reducer is 1:3; Described speedup velocity ratio is 3:1.
Vacuum compression device in specific embodiments of the invention by vacuum compression cylinder body 41, connecting sleeve 52, piston, piston fixed cover 55, piston shaft Sealing first, leading screw 53, screw 54, in 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, total air escape pipe and total inlet pipe form.
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 (9)
1. the circulating positive and negative break-in speed change vacuum compressor of one described in, comprise electric transmission, vacuum compression device, it is characterized in that: by positive and negative break-in speed changing type electric transmission, drive vacuum compression device, described positive and negative break-in speed changing type electric transmission drives positive and negative break-in speed changing type transmission device by motor drive component, described positive and negative break-in speed changing type transmission device is by deceleration device, forward and reverse gear synchronous driving mechanism, positive and negative deviator and speeder composition, through described deceleration device, forward and reverse gear synchronous driving mechanism, positive and negative deviator and speeder, the high rotating speed of input is decelerated to after the slow-speed of revolution and positive and negative break-in by deceleration device, by speeder, the low speed speedup after positive and negative break-in is arrived to high output speed again, through this high output speed drive piston series connection group in vacuum compression device constantly in vacuum compression cylinder body past, return motion, make vacuum compressor realize having and vacuumize and the efficient function that is compressed in one, described deceleration device is comprised of A transition gear (10) and the A transition gear axle (7) of deceleration box (1), gear box cover (18), power shaft (2), input gear (3), deceleration, band transmission (20) power shaft (2) one end be connected to band transmission (20) driven pulley on, the other end of described power shaft (2) through gear box cover (18) by bearings in deceleration box (1) inner bottom surface, the upper keyed jointing input gear (3) of power shaft (2) of being close to deceleration box (1) inner bottom surface, described input gear (3) is meshed with the A transition gear (10) on A transition gear axle (7), one end of described A transition gear axle (7) by bearings in deceleration box (1) inner bottom surface, the other end of A transition gear axle (7) by bearings in gear box cover (18), in this A transition gear axle (7) top, install forward and reverse gear synchronous driving mechanism, described forward and reverse gear synchronous driving mechanism is comprised of B transition gear (8), axle sleeve (9), C transition gear (6), C transition gear axle (5) and transition wheel support (4), the upper keyed jointing B transition gear (8) of A transition gear axle (7), one side of described B transition gear (8) is meshed with a change gear (12) of forward, the opposite side of this B transition gear (8) is meshed with C transition gear (6) one sides on C transition gear axle (5), and the opposite side of described C transition gear (6) is meshed with reverse a change gear (12), one end of described C transition gear axle (5) by bearings in gear box cover (18), the other end of C transition gear axle (5) by bearings in the transition wheel support (4) of gear box cover (18), described transition wheel support (4) is connected on gear box cover (18) bottom surface, A transition gear axle (7) upper installing axle sleeve (9) between described A transition gear (10) and B transition gear (8), by B transition gear (8), realize the forward and reverse rotation of two a change gears (12), deceleration box (1) underrun is sealedly connected on the uncovered end face of break-in case (49),The positive and negative deviator that in described break-in case (49), installing is driven by forward and reverse gear synchronous driving mechanism, described positive and negative deviator is comprised of break-in mainshaft mechanism and positive and negative change gear axis mechanism, described break-in mainshaft mechanism is comprised of break-in main shaft (24), first change gear (34), the third change gear (27), fourth change gear (26), second change gear (25), commutator and buffer, in this break-in case (49) middle part installing break-in main shaft (24), the top of described break-in main shaft (24) by bearings in deceleration box (1) bottom surface, the bottom of break-in main shaft (24) is stretched in gearbox (50) through bearing, keyed jointing first change gear (34) on the bottom of the break-in main shaft (24) in gearbox (50), on break-in main shaft (24) in break-in case (49) more than the end, sequentially install the third change gear (27), fourth change gear (26) and second change gear (25) and the commutator of hollow, the upper installing of break-in main shaft (24) buffer in described the third change gear (27) cavity, the commutator that the installing of described break-in main shaft (24) top is comprised of commutation body (22), commutator gland (23), traveller (43) and " C " shape groove sliding for traveller (43) and commutation transmission component, wherein break-in main shaft (24) top is by the bearings body (22) that commutates, described commutation body (22) bottom surface installing commutator gland (23), described commutator gland (23) is fixed by screws on the boss of deceleration box (1) bottom surface, the excircle of commutation body (22) is provided with external arc ear (58), has " C " shape groove sliding for traveller (43) in the bottom surface corresponding with this external arc ear (58) end positions, the bottom of described traveller (43) is fixed on second change gear (25), in the upper installing of this second change gear (25), by commutation transmission component, drive the forward and reverse swing of commutation body (22) around break-in main shaft (24), the forward and reverse motion by traveller (43) in " C " shape groove, cause commutator to produce positive and negative commutating period poor, meanwhile, the two ends of external arc ear (58) are poor by positive and negative commutating period, roll key (19) alternate the touching that interlock with the break-in of positive and negative change gear axis mechanism, when a of forward change gear (12) is worked along forward rotation, break-in is rolled key (19) and is flicked, duckbilled spring flicks duckbilled body, at this moment the circular arc cross section key section that the unidirectional ratchet (57) on a change gear rolls key (19) with break-in after rotating touches mutually, drive change gear axle (11) forward rotation, owing to being hinged on duckbilled body in change gear axle (11), flicking with change gear axle (11) and together make forward rotation, so duckbilled body touches mutually with the unidirectional ratchet (57) on b change gear (13), drive b change gear (13) also to do forward rotation, above-mentioned movement locus state is also applicable to reverse change gear axis mechanism, the just direction of rotation of change gear axis mechanism, when reverse change gear axis mechanism is not worked, break-in is rolled key (19) and is pressed on commutation body one end,Break-in is rolled in the circular arc cross-section segments and duckbilled body retraction change gear axle of key (19), thus change gear axle (11) do not stop, a, b change gear become idling conditions, positive and negative commutating period by commutator is poor, realize the positive and negative commutation of the forward and reverse change gear mechanism of system control, on insert a change gear (12), between described a change gear (12) axis hole and change gear axle (11), leave spacing, a change gear (12) axis hole medial surface is provided with unidirectional ratchet (57), on change gear axle (11) in described a change gear (12) top end face, sequentially install upper end cover (16) and freewheel clutch cover (14), in described freewheel clutch cover (14) in-built enter freewheel clutch (46), freewheel clutch cover (14) is bolted on gear box cover (18), between described upper end cover (16) bottom surface and the contact-making surface of a change gear (12), put several balls (42), change gear axle (11) in the bottom of described a change gear (12) is above fixed Upper shaft sleeve (15) by jackscrew, between described Upper shaft sleeve (15) end face and the contact-making surface of a change gear (12), put several balls (42), change gear axle (11) upper installing freewheel clutch cover (14) more than break-in case (49) inner bottom surface bearing, this freewheel clutch cover (14) is bolted at the interior end of break-in case (49), described freewheel clutch (46) packs in freewheel clutch cover (14), on change gear axle (11) more than freewheel clutch cover (14), insert b change gear (13), between described b change gear (13) and change gear axle (11), leave spacing, b change gear (13) axis hole medial surface is provided with unidirectional ratchet (57), in the lower end of described b change gear (13), by screw, fix bottom end cover (16), between described bottom end cover (16) end face and the contact-making surface of b change gear (13), put several balls (42), in the top of described b change gear (13), by jackscrew, fix Lower shaft sleeve (15), between described Lower shaft sleeve (15) bottom surface and the contact-making surface of b change gear (13), put several balls (42), hinged spring duckbilled key asembly (21) in the medial surface of the change gear axle (11) in described b change gear (13), the ratchet head of rolling key (19) when the break-in in the change gear mechanism of forward applies pressure to the external circular arc ear of corresponding commutator (58) 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 (57), the now a change gear (12) of the change gear mechanism of this forward idle running, change gear axle (11) 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 of rolling key (19) when the break-in in reverse change gear mechanism applies pressure to the other end of the external circular arc ear of corresponding commutator (58), meanwhile, this reverse upper and lower key section is not subject to stopping of a, b change gear axis hole interior unidirectional ratchet (57)The now a change gear (12) of this reverse change gear mechanism idle running, can not rotate change gear axle (11), causes reverse change gear mechanism and does not work; And normally work in the change gear mechanism of the forward of another side; By two spring duckbilled key asemblies (21), two break-ins on positive and negative two break-in axles (11), roll cooperatively interacting of key (19) and the left and right swing of commutator, realize the positive and negative break-in function of forward and reverse change gear mechanism; Described gearbox (50) is sealedly connected on break-in case (49) bottom surface, end by bearings in the bottom surface of first change gear (34), the bottom of this output shaft (35) stretches outside output shaft end cap (37) through gearbox (50), vacuum compression cylinder body (41) and output shaft end cap (37), and its output shaft (35) end stretching outside output shaft end cap (37) is connected with adapter sleeve (52); Described output shaft end cap (37) is fixed by screws on gearbox (50) bottom surface; Output shaft (35) step upper and lower side in output shaft end cap (37) is installed respectively upper and lower applanation bearing (51), sequentially installs the output gear (36) of sealing ring (59), bearing (47) and speedup on output shaft (35) more than described upper applanation bearing (51); The described upper installing of output gear (36) speed increasing gear assembly; Mat speed increasing gear assembly increases the output speed of output gear (36), makes output gear (36) drive output shaft (35) high speed rotating; By high output speed drive piston series connection group in vacuum compression device constantly in vacuum compression cylinder body (41) past, return motion, realize the efficient function that vacuumizes with compress of the vacuum compressor of circulating positive and negative break-in speed change.
2. by circulating positive and negative break-in speed change vacuum compressor claimed in claim 1, it is characterized in that: described motor drive component is comprised of support (8), motor (17) and band transmission (20), motor (17) the connecting band transmission (20) on support (48); Or by shaft coupling mode, realize the input shaft (2) that is directly driven positive and negative break-in speed changing type transmission device by motor (17).
3. by circulating positive and negative break-in speed change vacuum compressor claimed in claim 1, it is characterized in that: described positive and negative break-in speed changing type transmission device and the profile of vacuum compression device are cylindrical shape.
4. by the vacuum compressor of circulating positive and negative break-in speed change claimed in claim 1, it is characterized in that: described break-in case (49) respectively adopts O type circle with described speedup box (50) with being tightly connected of break-in case (49) bottom surface with being tightly connected of deceleration box (1) bottom surface.
5. by the vacuum compressor of circulating positive and negative break-in speed change claimed in claim 1, it is characterized in that: described commutation transmitting assemblies is comprised of B transition gear axle (33), E transition gear (32) and D transition gear (31), described second change gear (25) is meshed with the D transition gear (31) on B transition gear axle (33); Described fourth change gear (26) is meshed with the E transition gear (32) on B transition gear axle (33); Described B transition gear axle (33) one end by bearings in break-in case (49) bottom surface, the other end of its B transition gear axle (33) by bearings in speed reducer (1) bottom surface.
6. by the vacuum compressor of circulating positive and negative break-in speed change claimed in claim 1, it is characterized in that: described buffer is comprised of buffer cylinder (28), upper lower cover (29) and upper and lower damping spring (30), the upper keyed jointing buffer cylinder (28) of break-in main shaft (24) in described the third change gear (27) hollow, sequentially installs upper and lower gland (29) and upper and lower buffer spring (30) on the break-in main shaft (24) of the upper and lower end of described buffer cylinder (28).
7. by the vacuum compressor of circulating positive and negative break-in speed change claimed in claim 1, it is characterized in that: described spring duckbilled key asembly (21) is by duckbilled body, hinge (44) and duckbilled spring (45) form, 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 top of described hinge (43) is hinged in Lower shaft sleeve (15), in the hinged duckbilled body in bottom of hinge (43), the sharp nozzle end of duckbilled body rolls key section under key (19) with spring break-in and touches mutually, realizing duckbilled body moves in groove by hinge (43), between this duckbilled body tail end and groove inwall, install 2～4 duckbilled springs (45), insert in the spring eye of duckbilled body one end of each described duckbilled spring (45), in the other end insertion groove inwall of duckbilled spring (45).
8. by 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 (22) are for semicircle, and the semicircle center of its every end is α with the angle of commutation body (22) 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 (58) depends on poor length turn around time of forward and reverse change gear mechanism, and the poor time of commutation of Dang Liang change gear mechanism is long, and this circumference L is just long; The poor time of commutation of Dang Liang change gear mechanism is short, and this circumference L is just short.
9. by circulating positive and negative break-in speed change vacuum compressor claimed in claim 1, it is characterized in that: described overdrive gear assembly is by K transition gear (63), H transition gear (62) and E transition gear axle (61), D transition gear axle (38), F transition gear (39) and G transition gear (40) form, between described output gear (36) and G transition gear (40) speedup box (50) inner bottom surface on by bearing, install E transition gear axle (61), sequentially keyed jointing H transition gear (62) and K transition gear (63) on described E transition gear axle (61), described K transition gear (63) is meshed with G transition gear (40), described H transition gear (62) is meshed with output gear (36), the bottom of described D transition gear axle (38) by bearings in speedup box (50) inner bottom surface, in the boss that push up in speedup box (50) by bearings on the top of its D transition gear axle (38), described first change gear (34) is meshed with the F transition gear (39) on D transition gear axle (38).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310714945.5A CN103696935B (en) | 2013-12-18 | 2013-12-18 | Circulating positive and negative break-in speed change vacuum compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310714945.5A CN103696935B (en) | 2013-12-18 | 2013-12-18 | Circulating positive and negative break-in speed change vacuum compressor |
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| CN103696935B CN103696935B (en) | 2016-12-07 |
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| JP2005054861A (en) * | 2003-08-01 | 2005-03-03 | Ricoh Co Ltd | Rotary driving device, fixing device, and image forming device |
| CN2842093Y (en) * | 2005-08-26 | 2006-11-29 | 王志安 | Cam output to-and-fro motion speed reducer |
| JP2009062870A (en) * | 2007-09-06 | 2009-03-26 | I & T:Kk | Air pump |
| CN102226450A (en) * | 2011-06-13 | 2011-10-26 | 张庆鹏 | Reciprocating screw vacuum compressor |
| CN202441828U (en) * | 2012-02-06 | 2012-09-19 | 刘之乾 | Tooth-type automatic reversing device with adjustable frequencies and interval revolutions |
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2013
- 2013-12-18 CN CN201310714945.5A patent/CN103696935B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005054861A (en) * | 2003-08-01 | 2005-03-03 | Ricoh Co Ltd | Rotary driving device, fixing device, and image forming device |
| CN2842093Y (en) * | 2005-08-26 | 2006-11-29 | 王志安 | Cam output to-and-fro motion speed reducer |
| JP2009062870A (en) * | 2007-09-06 | 2009-03-26 | I & T:Kk | Air pump |
| CN102226450A (en) * | 2011-06-13 | 2011-10-26 | 张庆鹏 | Reciprocating screw vacuum compressor |
| CN202441828U (en) * | 2012-02-06 | 2012-09-19 | 刘之乾 | Tooth-type automatic reversing device with adjustable frequencies and interval revolutions |
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| CN103696935B (en) | 2016-12-07 |
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