CN103629077A - Turning main shaft mechanism of turning main shaft device of circulation type positive and negative turning variable-speed vacuum compressor - Google Patents
Turning main shaft mechanism of turning main shaft device of circulation type positive and negative turning variable-speed vacuum compressor Download PDFInfo
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- CN103629077A CN103629077A CN201310705393.1A CN201310705393A CN103629077A CN 103629077 A CN103629077 A CN 103629077A CN 201310705393 A CN201310705393 A CN 201310705393A CN 103629077 A CN103629077 A CN 103629077A
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Abstract
The invention belongs to a vacuum compressor, and in particular relates to a turning main shaft mechanism of a turning main shaft device of a circulation type positive and negative turning variable-speed vacuum compressor. The vacuum compressor comprises a positive and negative turning gear mechanism and is characterized in that the positive and negative turning gear mechanism drives the turning main shaft mechanism. The turning main shaft mechanism is composed of a turning case, a turning main shaft, a turning gear A, a bearing, a turning gear C, a turning gear D, a turning gear B, a commutator, a buffer assembly and a commutator transmission assembly. The positive and negative turning of the positive and negative turning gear mechanism is controlled through the time difference of positive and negative turning of the commutator. The turning main shaft mechanism has the characteristics of the design is reasonable, the structure is compact, can positive negative turn can be realized, the turning time difference is precise and the buffer function is good, the operation is stable, the vacuumizing and compressing efficiency of the vacuum compressor can be improved, and the like.
Description
Technical field
The invention belongs to vacuum compression machinery, particularly a kind of break-in mainshaft mechanism of circulating positive and negative break-in speed change vacuum compressor break-in main shaft device.
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, but still there are some shortcoming and defect in its transmission device, topmost shortcoming is that its jaw clutch is easy to de-knot when normal operation and its transmission device can not work 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, the logical step of forward and reverse gear driving mechanism, positive and negative deviator and speeder, and wherein positive and negative deviator comprises break-in mainshaft mechanism and forward and reverse change gear mechanism; 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 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 the break-in mainshaft mechanism in positive and negative deviator, must there is the reliable and stable function of compactness rational in infrastructure and transmission performance.Therefore, a kind of break-in mainshaft mechanism that is applicable to the positive and negative deviator of 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 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 the break-in mainshaft mechanism of the positive and negative deviator of a kind of circulating positive and negative break-in speed change vacuum compressor is provided; This break-in mainshaft mechanism is not only reasonable in design, and compact structure can positive and negative break-in, has again accurate turn around time poor, and has good pooling feature, stable and improve vacuum compressor and vacuumize and the features such as efficiency of compressing.
The object of the invention is to adopt following technological scheme to realize: the break-in mainshaft mechanism of described circulating positive and negative break-in speed change vacuum compressor break-in main shaft device, comprise positive and negative change gear axis mechanism, it is characterized in that: by positive and negative change gear axis mechanism, drive break-in mainshaft mechanism, described break-in mainshaft mechanism is by break-in case, break-in main shaft, first change gear, bearing, the third change gear, fourth change gear, second change gear, commutator, buffer and commutator transmitting assemblies form, the described uncovered end face of break-in case is sealedly connected on deceleration box bottom surface, 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 and bearing on the bottom of the break-in main shaft in speedup box, on break-in axle 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 hollow cavity, install buffer, the commutator that the installing of described break-in spindle top is comprised of commutation body, commutation gland, traveller and " C " the shape groove sliding for traveller and commutator transmitting assemblies, 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 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 3, 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.
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 of the technological scheme of high speed → deceleration → break-in → speedup, the motor on support is by band transmission driving or directly by motor-driven positive and negative break-in speed changing type transmission device, its positive and negative break-in speed changing type transmission device is by speed reducer, forward and reverse gear synchronous driving mechanism, break-in mainshaft mechanism, positive and negative deviator and speeder form, wherein break-in main shaft device is comprised of break-in mainshaft mechanism and positive and negative change gear axis mechanism, and break-in mainshaft mechanism is by break-in case, break-in main shaft, first change gear, the third change gear, fourth change gear, second change gear, commutator, buffer and positive and negative change gear axis mechanism form, owing to being provided with commutator in break-in mainshaft mechanism, buffer, its commutator is by the body that commutates, commutator gland, traveller and " C " shape groove sliding for traveller form, buffer is comprised of buffer cylinder, upper lower cover and upper and lower damping spring, by the break-in in commutator and positive and negative change gear mechanism, roll and mutually touch cooperation between key, and commutator transmitting assemblies drives commutation body around the forward and reverse swing of break-in main shaft, forward and reverse motion through traveller in " C " shape groove, just causes commutator to produce positive and negative turn around time poor, positive and negative turn around time by commutator is poor, realize the positive and negative commutation of break-in mainshaft mechanism.
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, has again accurate turn around time poor, and has good pooling feature, stable and improve vacuum compressor and vacuumize and the features such as efficiency of compressing.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
The present invention has six 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 C 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 K-K line in Fig. 2;
Accompanying drawing 5 is that the structure of the break-in main shaft 7 of this specific embodiment is amplified signal;
Accompanying drawing 6 is along the enlarged diagram of analysing and observe of A-A line in Fig. 5.
In figure: 1, break-in case, 2, change gear axle, 3, key is rolled in break-in, 4, fan-shaped ear, 5, deceleration box, 6, bolt, 7, break-in main shaft, 8, first change gear, 9, bearing, 10, the third change gear, 11, fourth change gear, 12, second change gear, 13, commutation body, 14, commutation gland, 15, traveller, 16, external arc ear, 17, " C " shape groove, 18, D transition gear, 19, C transition gear axle, 20, E transition gear, 21, commutator gland, 22, buffer cylinder, 23, upper lower cover, 24, upper and lower damping spring, 25, O type circle.
Embodiment
Shown in Fig. 1,2,3,4,5,6, be specific embodiments of the invention, it is the break-in mainshaft mechanism of circulating positive and negative break-in speed change vacuum compressor break-in main shaft device, comprise positive and negative change gear axis mechanism, it is characterized in that: by positive and negative change gear mechanism, drive break-in mainshaft mechanism; Described break-in mainshaft mechanism is comprised of break-in case 1, break-in main shaft 7, first change gear 8, bearing 9, the third change gear 10, fourth change gear 11, second change gear 12, commutator and buffer, the described uncovered end face of break-in case 1 is sealedly connected on deceleration box 5 bottom surfaces, in this break-in case 1 middle part installing break-in main shaft 7, the top of described break-in main shaft 7 by bearings in deceleration box 5 bottom surfaces, the bottom of break-in main shaft 7 is stretched in speedup box 6 through bearing, keyed jointing first change gear 8 and bearing 9 on the bottom of the break-in main shaft 7 in speedup box 6; On break-in axle 7 in break-in case 1 more than the interior end, sequentially install the third change gear 10, fourth change gear 11 and second change gear 12 and the commutator of hollow, on the break-in axle 7 in the third described change gear 10 hollow cavities, install buffer; The commutator that the 7 tops installings of described break-in main shaft are comprised of commutation body 13, commutation gland 14, traveller 15 and " C " shape groove 17 sliding for traveller 15 and commutator transmitting assemblies, break-in main shaft 7 tops are by the bearings body 13 that commutates; Described commutation body 13 bottom surface installing commutation glands 14, described commutation gland 14 is fixed by screws on deceleration box 5 bottom surface boss; The excircle of commutation body 13 is provided with external arc ear 16, with these external arc ear 16 end positions
In corresponding bottom surface, have " C " shape groove 17 sliding for traveller 15; The bottom of described traveller 15 is fixed on second change gear 12; On this second change gear 12, installing drives commutation body 13 around the forward and reverse swing of break-in main shaft 7 by commutator transmitting assemblies, and the forward and reverse motion through traveller 15 in " C " shape groove 17 just causes commutator to produce positive and negative turn around time poor; Meanwhile, the two ends of external arc ear 16 are poor by positive and negative turn around time, roll key 3 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 3 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 3 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 3 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 3, 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.
Described speed reducer is with the profile that becomes case the cylindrical shape that diameter is identical.
Being tightly connected of described break-in case and speed reducer bottom surface adopts O type circle 25 respectively with described speedup box and being tightly connected of break-in case 49 bottom surfaces.
Described commutator transmission is comprised of C transition gear axle 19, E transition gear 20 and D transition gear 18, and described second change gear 12 is meshed with the D transition gear 18 on C transition gear axle 19; Described fourth change gear 11 and E transition gear 20 on C transition gear axle 19 be meshed; Described C transition gear axle 19 one end by bearings in break-in case 1 bottom surface, the other end of C transition gear axle by bearings in speed reducer 5 bottom surfaces.
Described Bunper assembly is comprised of buffer 28 buffering glands 29 and damping spring 30, keyed jointing buffer 28 on break-in main shaft 7 in the third described change gear 27 hollows, sequentially installs upper and lower buffering gland 29 and upper and lower damping spring 30 on the break-in main shaft 7 of the upper and lower end of described buffer 28.
Described commutation body 13 is connected on the fan-shaped ear 4 of break-in main shaft by bolt 6; " C " shape groove 17 two ends of this commutation body 13 are semicircle, and the semicircle center of commutation body 13 every ends and the angle of diameter are α; 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 16 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.
Positive and negative change gear axis mechanism in this specific embodiment comprises by change gear axle 2, speed reducer 5, a change gear, end cap, break-in are rolled key 3, duckbilled key asembly, b change gear, upper Lower shaft sleeve, free wheel device and free wheel device cover and formed up and down.
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 (6)
1. the break-in mainshaft mechanism of a kind of circulating positive and negative break-in speed change vacuum compressor break-in main shaft device described in, comprises positive and negative change gear axis mechanism, it is characterized in that: by positive and negative change gear axis mechanism, drive break-in mainshaft mechanism, described break-in mainshaft mechanism is by break-in case (1), break-in main shaft (7), first change gear (8), bearing (9), the third change gear (10), fourth change gear (11), second change gear (12), commutator, buffer and commutator transmitting assemblies form, the described uncovered end face of break-in case (1) is sealedly connected on deceleration box (5) bottom surface, in this break-in case (1) middle part installing break-in main shaft (7), the top of described break-in main shaft (7) by bearings in speed reducer (5) bottom surface, the bottom of break-in main shaft (7) is stretched in speedup box (6) through bearing, keyed jointing first change gear (8) and bearing (9) on the bottom of the break-in main shaft (7) in speedup box (6), on break-in axle (7) in break-in case (1) more than the end, sequentially install the third change gear (10), fourth change gear (11) and second change gear (12) and the commutator of hollow, the upper installing of break-in axle (7) buffer in described the third change gear (10) hollow cavity, the commutator that the installing of described break-in main shaft (7) top is comprised of commutation body (13), commutation gland (14), traveller (15) and " C " shape groove (17) sliding for traveller (15) and commutator transmitting assemblies, break-in main shaft (7) top is by the bearings body (13) that commutates, described commutation body (13) bottom surface installing commutation gland (14), described commutation gland (14) is fixed by screws on the boss of deceleration box (5) bottom surface, the excircle of commutation body (13) is provided with external arc ear (16), has " C " shape groove sliding for traveller (15) in the bottom surface corresponding with this commutation body (13) end positions, the bottom of described traveller (15) is fixed on second change gear (12), in the upper installing of this second change gear (12), by commutator transmitting assemblies, drive commutation body (13) around the forward and reverse swing of break-in main shaft (7), forward and reverse motion through traveller (15) in " C " shape groove, causes commutator to produce positive and negative turn around time poor, meanwhile, the two ends of external arc ear (16) are poor by positive and negative turn around time, roll key (3) 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 (3) 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 (3) 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 is rolled key 3 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 (3), 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.
2. by the break-in mainshaft mechanism of circulating positive and negative break-in speed change vacuum compressor break-in main shaft device claimed in claim 1, it is characterized in that: the profile of described speed reducer and break-in case is the cylindrical shape that diameter is identical.
3. by the break-in mainshaft mechanism of circulating positive and negative break-in speed change vacuum compressor break-in main shaft device claimed in claim 1, it is characterized in that: described break-in case (1) adopts O type circle (25) with being tightly connected of speed reducer (5) bottom surface.
4. by the break-in mainshaft mechanism of circulating positive and negative break-in speed change vacuum compressor break-in main shaft device claimed in claim 1, it is characterized in that: described commutator transmitting assemblies is comprised of C transition gear axle (19), E transition gear (20) and D transition gear (18), described second change gear (12) is meshed with the D transition gear (18) on C transition gear axle (19); Described fourth change gear (11) and E transition gear (20) on C transition gear axle (19) be meshed; Described C transition gear axle (19) one end by bearings in break-in case (1) bottom surface, the other end of C transition gear axle (19) by bearings in speed reducer (5) bottom surface.
5. by the break-in mainshaft mechanism of circulating positive and negative break-in speed change vacuum compressor break-in main shaft device claimed in claim 1, it is characterized in that: described buffer is comprised of buffer cylinder (21), buffering gland (22) and damping spring (23), the upper keyed jointing buffer cylinder (21) of break-in main shaft (7) in described the third change gear (10) hollow, sequentially installs upper and lower gland (22) and upper and lower damping spring (23) on the break-in main shaft (7) of described buffer cylinder (21) upper and lower end.
6. by the break-in mainshaft mechanism of circulating positive and negative break-in speed change vacuum compressor break-in main shaft device claimed in claim 1, it is characterized in that: described commutation body (13) is connected on the fan-shaped ear (6) of break-in main shaft (7) by bolt (6); " C " shape groove 17 two ends of this commutation body 13 are semicircle, and the semicircle center of the every end of commutation body (13) and the angle of diameter are α; 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 (16) 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.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310705393.1A CN103629077B (en) | 2013-12-18 | 2013-12-18 | The break-in mainshaft mechanism of circulating vacuum compressor break-in main shaft device |
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| CN201310705393.1A CN103629077B (en) | 2013-12-18 | 2013-12-18 | The break-in mainshaft mechanism of circulating vacuum compressor break-in main shaft device |
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| CN103629077A true CN103629077A (en) | 2014-03-12 |
| CN103629077B CN103629077B (en) | 2017-03-01 |
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| CN201310705393.1A Expired - Fee Related CN103629077B (en) | 2013-12-18 | 2013-12-18 | The break-in mainshaft mechanism of circulating vacuum compressor break-in main shaft device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105299265A (en) * | 2014-07-31 | 2016-02-03 | 广州通泽机械有限公司 | Double-ball-valve synchronous opening and closing device |
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| CN203925936U (en) * | 2013-12-18 | 2014-11-05 | 大连精功机械设备有限公司 | The break-in mainshaft mechanism of circulating break-in speed change vacuum compressor break-in main shaft device |
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| CN2842093Y (en) * | 2005-08-26 | 2006-11-29 | 王志安 | Cam output to-and-fro motion speed reducer |
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| CN203925936U (en) * | 2013-12-18 | 2014-11-05 | 大连精功机械设备有限公司 | The break-in mainshaft mechanism of circulating break-in speed change vacuum compressor break-in main shaft device |
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| CN105299265A (en) * | 2014-07-31 | 2016-02-03 | 广州通泽机械有限公司 | Double-ball-valve synchronous opening and closing device |
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| CN103629077B (en) | 2017-03-01 |
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