CN2207478Y - Speed variator with involute planetary gear - Google Patents
Speed variator with involute planetary gear Download PDFInfo
- Publication number
- CN2207478Y CN2207478Y CN 93234211 CN93234211U CN2207478Y CN 2207478 Y CN2207478 Y CN 2207478Y CN 93234211 CN93234211 CN 93234211 CN 93234211 U CN93234211 U CN 93234211U CN 2207478 Y CN2207478 Y CN 2207478Y
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- gear
- planetary
- speed
- gears
- involute
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Abstract
The utility model relates to a speed variator with involute planetary gears. The utility model is characterized in that input shafts in the same planet carrier is provided with two sun gears which can drive two groups of planetary gears simultaneously. Two floating inner gears are driven by the two groups of planetary gears simultaneously. The two inner gears, the two groups of planetary gears and the two sun gears have different diameters but the same center distance. In this way, two groups of planetary gears with different diameters can be arranged in pair on the same supporting shaft of the planet carrier. Two transmission ratios can be obtained through the crossover fixation of two inner gears, so the purpose of variable speed transmission is achieved.
Description
The invention belongs to the planetary pinion transmission field, a kind of involute planet gear speed changer of more specifically saying so is in order to realize the planetary gear speed-changing transmission.
Existing patented technology few-differential spider speed changer, (patent No. is: can realize that ZL881057401) speed change becomes the torque transmission, but only should be used for the above low-speed heave-load transmission of velocity ratio 1:16, should not be used for the close steps transmission; Known involute planet gear transmission is only done to slow down or the speedup transmission, and the speed change transmission of being unrealized.
Purpose of the present invention provides a kind of involute planet gear speed changer, can be implemented in the speed change transmission in the following close steps scope of velocity ratio 1:16, overcomes the shortcoming of prior art.
The present invention is achieved in that in the same planet carrier in same planetary type gear transmission unit, two sun gears are arranged, two groups of planetary pinions, two unsteady internal gears, two sun gears are installed on the same input shaft, two groups of planetary pinions, divide being installed on the same supporting axle, and two internal gears can exchange and float or be fixed on the casing, two sun gear rotating speeds are identical during running, and drive separately planet gear meshed simultaneously and do planetary motion, float or fixed annulus by exchanging, make planet carrier obtain two kinds of different rotating speeds, thereby reach the purpose of speed change transmission.For realizing that this purpose primary condition is, the centre distance of two groups of planetary pinions and sun gear must equate.
For the easier quilt of the present invention is understood, below quote four drawings and Examples, and described in detail, but not drawing of drawings and Examples should limit the scope of the invention.
Accompanying drawing 1 is the transmission principle of planetary transmission;
Accompanying drawing 2 and accompanying drawing 3 are respectively A-A, and the B-B sectional view illustrates the self-shifting transmission principle;
Accompanying drawing 4 is the transmission principles at the planetary transmission of slow speed turbine stage series connection one-level prior art plane table thermoconductivity meter.
Accompanying drawing 5 is the planetary transmission structural principle.
Now in conjunction with the accompanying drawings and embodiments the present invention is described in detail:
Shown in Figure 1: part ［ 1 ］ and part ［ 7 ］ are the planet carrier two end plates, and the two is the cage overall structure, and are unified into output shaft ［ 11 ］; ［ 9 ］ be input shaft, the axle on sun gear ［ 2 ］ is housed, the gear number of teeth is Z
A1, sun gear ［ 10 ］ is housed, the number of teeth is Z
A2Sun gear ［ 2 ］ and planetary pinion ［ 3 ］ engagement, ［ 3 ］ and internal gear ［ 5 ］ engagement, the number of teeth of gear ［ 3 ］ is Z
C1, the number of teeth of gear ［ 5 ］ is Z
B1Sun gear ［ 10 ］ and planetary pinion ［ 8 ］ engagement, ［ 8 ］ are meshed with internal gear ［ 6 ］, and the number of teeth of part ［ 8 ］ is Z
C2, part ［ 6 ］ the number of teeth be Z
B2When input shaft ［ 9 ］ rotation, fixed annulus ［ 5 ］ and when floating internal gear ［ 6 ］, sun gear ［ 2 ］ drives planetary pinion ［ 3 ］, planetary pinion ［ 3 ］ sky is enclosed within on the axle ［ 4 ］, because internal gear ［ 5 ］ is fixing, so planetary pinion ［ 3 ］ is done planetary motion, and by part ［ 4 ］ promotion planet carrier and output shaft ［ 11 ］, do and go into axle ［ 9 ］ spinning motion in the same way, thereby the motion after will slowing down is exported.Its velocity ratio i
1=1+(Z
B1)/(Z
A1); In like manner, when internal gear ［ 5 ］ is floated during fixed annulus ［ 6 ］, sun gear ［ 10 ］ drives planetary pinion ［ 8 ］, part ［ 8 ］ and internal gear ［ 6 ］ engagement, because part ［ 6 ］ maintains static, so planetary pinion ［ 8 ］, the spinning motion after promoting planet carrier ［ 1,7 ］ and output shaft ［ 11 ］ and do to slow down by part ［ 4 ］, moving direction is with to go into spool ［ 9 ］ identical.Its velocity ratio i
2=1+(Z
B2)/(Z
A2), making the module of part ［ 2 ］, part ［ 3 ］, part ［ 5 ］ is m
1The module of part ［ 10 ］, part ［ 8 ］ and part ［ 6 ］ is m
2For on planet carrier supporting axle ［ 4 ］, two planetary pinions that diameter is different are installed simultaneously, so that realize the speed change transmission, must make m
1(Z
A1+ Z
C1)=M
2(Z
A2+ Z
C2), velocity ratio i
1/ i
2The ratio size optionally design.Like this, owing to produce two velocity ratios, a kind of input speed just obtains 2 output speeds, and n input speed just obtains 2n output speed.It more than is the basic transmission principle of planetary transmission, as for the mode of internal gear ［ 5 ］ with ［ 6 ］ crossover fixation, hydraulic pressure crossover fixation device is arranged, also can adopt pneumatic, band-type brake, crossover fixation device such as electronic, when allowing output shaft counterrotating speed change, the also change of may command input shaft rotation direction, and reach the purpose of crossover fixation internal gear ［ 5 ］ and ［ 6 ］, thus realize the counterrotating speed change.
Shown in Figure 2: on the cylindrical circumference of internal gear ［ 5 ］, several unidirectional non-return devices ［ 12 ］ are installed, one of non-return device be fixed on casing on quenching steel ring ［ 13 ］ contact, and each non-return device is propped up with spring ［ 14 ］, make it to remain and steel ring, the internal gear cylindrical contacts, apparent from figure, when input shaft ［ 9 ］ when being rotated counterclockwise, sun gear ［ 2 ］ rotates counterclockwise, planetary pinion ［ 3 ］ clockwise rotates, and so the active force that has driving member ［ 5 ］ to clockwise rotate is internal gear ［ 5 ］, motionless by non-return device ［ 12 ］ pinning, thus velocity ratio i obtained
1, the spinning motion after planet carrier and output shaft ［ 11 ］ are done to slow down counterclockwise.
Shown in Figure 3: on the cylindrical circumference of gear ［ 6 ］, the one row non-return device ［ 12 ］ opposite with direction shown in Figure 3 is installed, when then input shaft ［ 9 ］ clockwise direction rotates, by above-mentioned principle, make internal gear ［ 6 ］ pin motionless by non-return device equally, thereby, and obtain velocity ratio i by sun gear ［ 10 ］, planetary pinion ［ 8 ］ and internal gear ［ 6 ］
2, the clockwise spinning motion after planet carrier and output shaft ［ 11 ］ are just done to slow down.Like this, change sense of rotation by input shaft ［ 9 ］, the opposite non-return device of direction ［ 12 ］ all is equipped with in internal gear ［ 5 ］ and ［ 6 ］, just can obtain two velocity ratio (i
1And i
2), output shaft ［ 11 ］ changes sense of rotation simultaneously with input shaft ［ 9 ］, and always rotation direction is identical, goes into axle ［ 9 ］ rotation direction and the self-shifting purpose thereby reach by changing.Because two velocity ratios are not of uniform size, the size that make velocity ratio with go into axle ［ 9 ］, and shaft ［ 11 ］ sense of rotation is complementary, then can be by changing on internal gear ［ 5 ］ and ［ 6 ］ the cylindrical circumference, the orientation of non-return device ［ 12 ］ and realizing.
Shown in Figure 4: be planetary transmission series connection one-level NGW type plane table thermoconductivity meter, part among the figure ［ 25 ］ is that sun gear, the number of teeth are Z
A3, planetary pinion ［ 20 ］, the number of teeth are Z
C3, the interior number of teeth ［ 18 ］, the number of teeth are Z
B3, sun gear ［ 24 ］, the number of teeth are Z
A4, planetary pinion ［ 21 ］, the number of teeth are Z
C4, internal gear ［ 19 ］, the number of teeth are Z
B4Slow speed turbine stage sun gear ［ 28 ］, the number of teeth are Z
A5, planetary pinion ［ 16 ］, the number of teeth are Z
C5, internal gear ［ 17 ］ is fixed in above the casing ［ 26 ］, and its number of teeth is Z
B5Transmission principle as previously mentioned, motion is imported from input shaft ［ 23 ］, on input shaft ［ 23 ］, fixedly sun gear ［ 25 ］ and ［ 24 ］ simultaneously, and drive planetary pinion ［ 20 ］ and ［ 21 ］ simultaneously respectively, two groups of planetary pinions that diameter is different, respectively with internal gear ［ 18 ］ and ［ 19 ］ engagement, in like manner, crossover fixation or unsteady internal gear ［ 18 ］ and ［ 19 ］ just can obtain two different velocity ratio i
3And i
4, i
3=1+(Z
B3)/(Z
A3), i
4=1+(Z
B4)/(Z
A4), slow speed turbine stage velocity ratio i
5=(Z
B5)/(Z
A5), so, obtain two resultant gear ratio i
6And i
7
i
6=(1 + (Z
B3)/(Z
A3) )·(1 + (Z
B5)/(Z
A5) )，i
7=(1 + (Z
B4)/(Z
A4) )·(1 + (Z
B5)/(Z
A5) )
Owing to two velocity ratios are arranged,, thereby have realized the speed change transmission so output shaft ［ 27 ］ just has two kinds of output speeds.
Except the NGW type planetary reducer of connecting at slow speed turbine stage, equally, but planetary transmission series hybrid few-differential spider retarder, and other type retarder, can also be in the series connection of planetary transmission speed end common electric machine, variable speed electric motors, particularly or other transmission, can also connect by the multi-stage planetary gear speed changer, combination form is varied.
Shown in Figure 5: be an example of having trial-produceed successfully, part ［ 31 ］ is a double-speed motor, and part ［ 32 ］ is an internal gear, internal gear ［ 32 ］ and external gear ［ 33 ］ engagement.On the axle of axle tooth sun gear ［ 37 ］, except that gear ［ 33 ］ is installed, another sun gear ［ 34 ］ has been installed simultaneously, sun gear ［ 37 ］ and planetary pinion ［ 36 ］ engagement.Sun gear ［ 34 ］ is mutually meshing with planetary pinion ［ 35 ］, and planetary pinion ［ 36 ］ and ［ 35 ］ are installed on the supporting axle ［ 44 ］ by rolling bearing simultaneously, and is meshed with ［ 27 ］ with unsteady internal gear ［ 47 ］ respectively.Two internal gears all use rolling bearing ［ 42 ］ (annotating: also can use sliding bearing) to be installed in casing respectively and above the bearing support ［ 29 ］, and are gapped between internal gear ［ 47 ］ and ［ 27 ］ and the casing endoporus.In order to reach the purpose of all carrying transmission, planetary pinion is installed on the supporting axle ［ 44 ］ with selfaligning bearing, and to reach the purpose that teeth directional all carries, the housing washer that install at the axle two ends of sun gear ［ 37 ］ has radial internal clearance, to reach the purpose of radially all carrying transmission.Pivoted arm ［ 43 ］ is by card key ［ 38 ］, fastening with output shaft ［ 41 ］ is an integral body, part ［ 48 ］ is the cylindrical cotter pilotage of two braking internal gear ［ 47 ］ and ［ 27 ］ usefulness, uniform several symmetrical channels on two internal gear excircles, part ［ 39 ］ and part ［ 40 ］ are output shaft bearing, two seal rings are housed in the lower end in case leak-stopping oil, when starting electrical machinery ［ 31 ］, internal gear ［ 32 ］ and gear ［ 33 ］, drive two sun gears ［ 34 ］ and ［ 37 ］ rotation simultaneously, two sun gears drive planetary pinion ［ 35 ］ and ［ 36 ］ simultaneously, and drive two internal gears ［ 27 ］ and ［ 47 ］ idle running simultaneously by planetary pinion, when inserting in internal gear ［ 27 ］ circumferential groove with the cylinder cotter pilotage, then internal gear ［ 27 ］ is lockable motionless, allow internal gear ［ 47 ］ dally,, obtain velocity ratio i so planet carrier ［ 43 ］ is made spinning motion under planetary pinion ［ 35 ］ drives
1Otherwise,, the cylinder cotter pilotage is inserted in the branch grooves such as circumference of internal gear ［ 47 ］, then internal gear ［ 47 ］ is lockable motionlessly, and internal gear ［ 27 ］ just dallies.In like manner, the spinning motion after planet carrier ［ 43 ］ is done to slow down under planetary pinion ［ 36 ］ drives, and obtain velocity ratio i
2Because planet carrier ［ 43 ］ is fastening with output shaft ［ 41 ］, thereby output shaft ［ 41 ］ obtains two output speeds, adds that two rotating speeds of motor just get four output speeds.
Remarkable advantage of the present invention is:
1, realizes gear, created condition for improving the matched host machine performance, make main frame more be adapted to the variation of operating mode;
2, because a plurality of output speeds are arranged, can realize low rate start, the requirement that runs well at a high speed adopts the decelerator that only has an output speed by the starting load torque thereby changed, and selects the situation of big power of motor, thereby plays the effect of energy-saving material-saving;
3, this planetary transmission can adopt multiple gearshift, not only can be manual, can also self shifter, and help improving automaticity, coupling torque rotary speed sensor and computer technology can also realize the intelligent speed changing transmission;
4, not only realize the following close steps scope of 1:16 internal speed-changing easily, and can connect applied range with retarder, motor or other driving mechanism easily;
5, transmission efficiency height, single-stage consulting 98%, twin-stage efficient 96%.
6, bearing capacity is big, and the product transmitting torque 245000NM that has designed, product divide horizontal and vertical installation etc.
Claims (4)
1, a kind of involute planet gear speed changer, it is characterized in that in same planetary type gear transmission unit, the sun gear of two different-diameters is installed on the same input shaft, fastening with key and input shaft, the planetary pinion of two groups of different-diameters divides being installed on the n root supporting axle on the same planet carrier, a pair of planetary pinion is installed on each root supporting axle, planetary pinion uses Bearing Installation on the supporting axle on the planet carrier, be meshed with corresponding sun gear, the unsteady internal gear of two different-diameters is with on the supporting surface of Bearing Installation in casing, be meshed with two groups of planetary pinions respectively, unsteady internal gear can float with the exchange of crossover fixation mechanism or be fixed on the casing as requested, and output shaft is fastening with card key and planet carrier; Fix an internal gear during running, another internal gear floats, two sun gears rotate synchronously, drive separately planet gear meshed and do planetary motion, and the spinning motion after promoting planet carrier and output shaft and do to slow down by the supporting axle on the planet carrier, because the parameter of two unsteady internal gears and corresponding planetary gear set and sun gear is different, when fixing different unsteady internal gear, the output speed difference that output shaft obtains, thus reached the purpose of speed change transmission.
2, involute planet gear speed changer according to claim 1, it is characterized in that two unsteady internal gears crossover fixation mechanism crossover fixation, the form of crossover fixation mechanism has hydraulic type, pneumatic type, manual band brake type, DYN dynamic and bolt-type, special just changeing when reversing the different rotating speed of needs when the involute planet gear transmission output shaft, not only can adopt above-mentioned crossover fixation mechanism form, but also can adopt unidirectional non-return device, two groups of unidirectional non-return devices are arranged in respectively between the cylindrical and the steel ring on the casing of two unsteady internal gears by opposite direction, and the orientation of the unidirectional non-return device of work is opposite with the output shaft sense of rotation.
3, involute planet gear speed changer according to claim 1, it is characterized in that and to connect by a plurality of involute planet gear speed changers, also can be at the slow speed turbine stage series connection one-level NGW of involute planet gear speed changer planetary reducer, or series hybrid few-differential spider retarder and other retarder, to enlarge gear range, simultaneously can also be in involute planet gear speed changer speed end, series connection common electric machine, variable speed electric motors, particularly, speed-adjustable motor or other driving mechanism are to enlarge application area.
4, involute planet gear speed changer according to claim 1, it is characterized in that vertical involute planet gear speed changer at involute planet gear speed changer speed end series connection multispeed electric machine, the internal gear that connects usefulness is housed on the multispeed electric machine axle, the external gear engagement that this internal gear and input shaft axle head are installed, two groups of planetary pinions divide being installed in selfaligning bearing on the n root supporting axle on the same planet carrier, rolling bearing is equipped with at the input shaft two ends that two sun gears are installed, between rolling bearing cylindrical and the installation endoporus radial internal clearance is arranged, two unsteady internal gears use rolling bearing (or sliding bearing) to be installed on casing and the bearing support cylndrical surface respectively, uniform several translots on its cylindrical, insert or withdraw from the groove with the cylinder cotter pilotage, can make two unsteady internal gear crossover fixations, make the output shaft that joins together with planet carrier obtain two kinds of different output speeds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234211 CN2207478Y (en) | 1993-06-26 | 1993-06-26 | Speed variator with involute planetary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234211 CN2207478Y (en) | 1993-06-26 | 1993-06-26 | Speed variator with involute planetary gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2207478Y true CN2207478Y (en) | 1995-09-13 |
Family
ID=33809941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93234211 Expired - Fee Related CN2207478Y (en) | 1993-06-26 | 1993-06-26 | Speed variator with involute planetary gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2207478Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011061759A1 (en) * | 2009-11-17 | 2011-05-26 | Sheetal Goel | High reduction ratio and easily adaptable planetary gear train with orbiting gears |
| CN102996775A (en) * | 2012-10-09 | 2013-03-27 | 吴小杰 | Grease lubricated star wheel speed reducer for bearing |
| CN104154221A (en) * | 2014-08-06 | 2014-11-19 | 吴小杰 | Planetary reduction gearbox supported by interlayer water-cooling box body zinc-base alloy bearing |
| CN104295671A (en) * | 2014-08-06 | 2015-01-21 | 吴小杰 | Planetary reduction box provided with interlayer air-cooling box body and supported by zinc-based alloy bearings |
| CN105088186A (en) * | 2011-11-23 | 2015-11-25 | 中微半导体设备(上海)有限公司 | Chemical vapor deposition reactor or epitaxial layer growing reactor and supporting device thereof |
| CN114906577A (en) * | 2022-05-31 | 2022-08-16 | 南京苏之晟环保设备有限公司 | Silencing type unpowered belt rotary sweeper |
-
1993
- 1993-06-26 CN CN 93234211 patent/CN2207478Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011061759A1 (en) * | 2009-11-17 | 2011-05-26 | Sheetal Goel | High reduction ratio and easily adaptable planetary gear train with orbiting gears |
| CN105088186A (en) * | 2011-11-23 | 2015-11-25 | 中微半导体设备(上海)有限公司 | Chemical vapor deposition reactor or epitaxial layer growing reactor and supporting device thereof |
| CN102996775A (en) * | 2012-10-09 | 2013-03-27 | 吴小杰 | Grease lubricated star wheel speed reducer for bearing |
| CN102996775B (en) * | 2012-10-09 | 2016-02-03 | 吴小杰 | Bearing grease lubrication planetary-gear speed reducer |
| CN104154221A (en) * | 2014-08-06 | 2014-11-19 | 吴小杰 | Planetary reduction gearbox supported by interlayer water-cooling box body zinc-base alloy bearing |
| CN104295671A (en) * | 2014-08-06 | 2015-01-21 | 吴小杰 | Planetary reduction box provided with interlayer air-cooling box body and supported by zinc-based alloy bearings |
| CN114906577A (en) * | 2022-05-31 | 2022-08-16 | 南京苏之晟环保设备有限公司 | Silencing type unpowered belt rotary sweeper |
| CN114906577B (en) * | 2022-05-31 | 2023-12-22 | 南京苏之晟环保设备有限公司 | Silencing type unpowered belt rotary sweeper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |