CN1122765C - Step-less speed changing planetary gear system - Google Patents
Step-less speed changing planetary gear system Download PDFInfo
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- CN1122765C CN1122765C CN 01117991 CN01117991A CN1122765C CN 1122765 C CN1122765 C CN 1122765C CN 01117991 CN01117991 CN 01117991 CN 01117991 A CN01117991 A CN 01117991A CN 1122765 C CN1122765 C CN 1122765C
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Abstract
The present invention relates to a planetary gear stepless speed changing system which is composed of a positive back gear box and a planetary gear stepless speed changer and provides a planetary gear stepless speed changing system using a planetary gear as a drive intermediate gear. A speed changing part of the system is a full-automatic stepless speed changer without the control of any auxiliary mechanism. The present invention is based on a planetary gear assembly composed of a gear, a gear frame, shafts and a positioning arm; when the planetary gear assembly is changed from a static state to a dynamic state, the rotary speed of an output shaft can be changed, so the ratio of the rotary speed to the torsion of an input shaft and the output shaft of the speed changing system is changed continuously, and thereby, stepless speed change is realized. The present invention has the advantages of reasonable design, stable and reliable operation, accurate transmission and large drive moment; the present invention can be applied to any engine through scaleup and is an ideal stepless speed changing system with a wide use, which enables motorcycle industry, automobile industry and railway traction engine industry to enter a stepless speed changing age comprehensively.
Description
Technical field
The invention belongs to a kind of step-less speed changing planetary gear system.
Background technique
Stepless speed variator system is crucial to automotive industry, and it not only can make motor car engine remain peak efficiency under various conditions, and can make motor reduce oil consumption rate, reduces the toxic gas in the discharging waste gas, avoids producing atmospheric pollution.For example patent 97109147.1 conical pulley stepless speed change systems, patent 97191251.3 planetary type gear transmission units, patent 98100604.9 toroidal continuously variable transmission devices etc., their application has promoted developing of automobile industry.Yet up to the present, these stepless speed variator systems with city's field boundary competitive ability only just are used on the small-sized automobile in the world, and this can't but be a restriction to developing of automobile industry.
Summary of the invention
The purpose of this invention is to provide a kind of is the step-less speed changing planetary gear system of transmission idle wheel with the planetary pinion.Variable part in the system is a kind of full-automatic stepless transmission that need not the control of any assisting agency.Its planetary pinion assemblying body to constitute by gear, gear carrier, axle, positioning arm, when the planetary pinion assemblying body is changed into the rotating speed that just can change output shaft when dynamic by static state, make the input shaft of speed variator system and the ratio of rotating speed on the output shaft and moment of torsion produce variation continuously, thereby realize stepless change.
The present invention is made up of positive reverse gear case, planet gear stageless speed variator and gear, gear carrier, axle, positioning arm etc.In positive reverse gear case, the lining 4 that is fixed on the gear 3 is done movingly with input gear shaft 9, and the gear 5 on the gear shaft 1 constitutes positive shelves combination with gear 3 engagements; The lining 11 that is fixed on the gear 10 is done movingly with input gear shaft 9, the lining 14 that is fixed on the intermediate gear 13 is done movingly with the minor axis 17 on the axis hole 112 that is fixed on substrate 19, pressing plate 15 is fixed on minor axis 17 axle heads by screw 16, and another gear 12 on the gear shaft 1 constitutes the reverse gear combination with gear 10 by intermediate gear 13 engagements; The gear 7 that is fixed on the input gear shaft 9 constitutes the gear clutch with ring gear 6 engagements; The slide block 118 that is contained on the shift fork 117 is stuck in the groove 125 of ring gear 6, shift fork 117 is fixed on the axle 116, axle 116 is done movingly with the axis hole 119 on the housing 2, operating stem 120 is fixed on the axle 116, a bearing 129 on the gear shaft 1 is located in the bearing support 130 on the housing 2, another bearing 131 on the gear shaft 1 is located in the bearing support 132 on the substrate 19, the bearing 127 of input on the gear shaft 9 is located in the bearing support 128 on the housing 2, input another bearing 110 on the gear shaft 9 is located in the bearing support 111 on the substrate 19, axle envelope 121,133, key 8, screw 114,124, installation opening 122, cover plate 123, spacer ring 18,21,115, back-up ring 126, it is fastening that housing 2 and substrate 19 dock by screw 113, constitutes positive reverse gear case.Planet gear stageless speed variator is that basic stepless speed changing mechanism combines by two different planetary pinion assemblying bodys, in a planetary pinion assemblying body, two are removed screw hole 26,34 have any different outside, the identical positioning arm 22 in other positions, there is an axis hole 27 at 29 center, court radially has a groove 23 on each championship, 32, groove 23, on 32 towards axially having a positioning port 24,30, positioning port 24, a spline screens 28 is arranged on 30,31, positioning pin hole 25,33, two identical stem gear framves 40,56, gear 41 is done movingly by roller 51 and axle 55, axle 55 one 52 is fixed on the axis hole 39 of stem gear frame 40, other end 54 is fixed on the axis hole 53 of stem gear frame 56, do movingly by roller 43 and axle 47 with gear 41 meshed gears 42, axle 47 one 44 is fixed on the axis hole 37 of stem gear frame 40, other end 46 is fixed on the axis hole 45 of stem gear frame 56, constitute planetary gear set, two positioning arm 22, groove 23 on each championship of 29, a planetary gear set is housed in 32, positioning port 24 on the groove 23 is enclosed within on the step 50 of stem gear frame 56, spline screens 48 on the step 50 engages with spline screens 28 on the positioning port 24, positioning port 30 on the groove 32 is enclosed within on the step 35 of stem gear frame 40, spline screens 36 on the step 35 engages with spline screens 31 on the positioning port 30, locating stud 58 pin-and-hole 25 of packing into, 33 is interior with positioning arm 22,29 location, screw 57 is fastened on screw hole 26, in 34, the planetary pinion assemblying body that constitutes is enclosed within on the input gear shaft 9 by axis hole 27, roller 59 is done movingly by roller 60 and the shaft part 38 on the stem gear frame 40, roller 62 is done movingly by roller 63 and the shaft part 49 on the stem gear frame 56, the supporting wheel 61 that is fixed on the input gear shaft 9 cooperates with roller 59 joint do rollings, the supporting wheel 64 that is fixed on the input gear shaft 9 cooperates with roller 62 joint do rollings, the planetary pinion assemblying body is supported, gear 41 and gear 66 engagements of importing on the gear shaft 9, gear 42 and ring gear 65 engagements that are fixed on the tep reel gear 67, tep reel gear 67 is slidingly matched by scuff-resistant coating on the hole wall 99 100 and input gear shaft 9, constitutes a stepless speed changing mechanism; Import as top when the gear 66 of input gear shaft 9, when tep reel gear 67 was exported as terminal, this stepless speed changing mechanism also was a stepless speed variator.In another planetary pinion assemblying body, two identical gear carriers 75,80, gear 70 is done movingly by roller 84 and axle 68, axle 68 one 82 is fixed on the axis hole 69 after passing the axis hole 69 of gear carrier 75, axle 68 other end 83 is fixed on the axis hole 81 after passing the axis hole 81 of gear carrier 80, do movingly by roller 85 and axle 71 with gear 70 meshed gears 73, axle 71 one 88 is fixed on the axis hole 72 after passing the axis hole 72 of gear carrier 75, axle 71 other end 87 is fixed on the axis hole 86 after passing the axis hole 86 of gear carrier 80, constitute planetary gear set, the pin-and-hole 79 at positioning arm 74 two is done movingly with pin 78, one 76 of pin 78 is fixed on the pin-and-hole 77 of gear carrier 75, other one 90 of pin 78 is fixed on the pin-and-hole 89 of gear carrier 80, locate by such connection between the planetary gear set, the planetary pinion assemblying body that constitutes is enclosed within on the gear 98 of tep reel gear 67, roller 91 is done movingly by the roller 134 and a spindle nose 82 of axle 68, roller 95 is done movingly by roller 135 and another spindle nose 83 of axle 68, roller 94 is done movingly by the roller 137 and a spindle nose 88 of axle 71, roller 97 is done movingly by roller 136 and another spindle nose 87 of axle 71, roller 91,94 do rolling with support ring 92 joints that tep reel gear 67 coils cooperates, roller 95,97 be fixed on tep reel gear 67 on disc type support ring 96 engage to do to roll and cooperate, the planetary pinion assemblying body is supported, gear 98 engagements on gear 73 and the tep reel gear 67, gear 70 and ring gear 93 engagements that are fixed on the tep reel output shaft 101, tep reel output shaft 101 is done movingly by roller 106 and input gear shaft 9, bearing 103 on the tep reel output shaft 101 is located in the bearing support 104 on the housing 102, constitutes another stepless speed changing mechanism; Gear 98 on tep reel gear 67 is as the top input, and when tep reel output shaft 101 was exported as terminal, this stepless speed changing mechanism was again a stepless speed variator.Two stepless speed changing mechanisms and axle envelope 105, end stake 107, abrasionproof pad 108,109, housing 102 and substrate 19 and dock by screw 20 fasteningly, unite stepless speed variator of formation.
The present invention is reasonable in design, working stability is reliable, and transmission is accurate, and driving torque is big, it can enlarge on the motor that is applied to any kind in proportion, is a kind of desirable broad-spectrum stepless speed variator system that motorcycle, automobile and even railway traction locomotive industry enter the stepless change epoch comprehensively.
Description of drawings:
Fig. 1 is a structural drawing of the present invention;
Fig. 2 is that A-A of the present invention is to structural drawing;
Fig. 3 is that B-B of the present invention is to structural drawing;
Fig. 4 is a positioning arm front view of the present invention;
Fig. 5 is that C-C of the present invention is to structural drawing;
Fig. 6 is a stem gear frame front view of the present invention;
Fig. 7 is that D-D of the present invention is to structural drawing;
Fig. 8 is a planetary pinion assemblying body front view of the present invention;
Fig. 9 is that E-E of the present invention is to structural drawing;
Figure 10 is another planetary pinion assemblying body front view of the present invention;
Figure 11 is that F-F of the present invention is to structural drawing;
Figure 12 is that G-G of the present invention is to structural drawing;
Figure 13,14, the 15th, practicability testing apparatus sketch of the present invention.
The standard piece that each component is made with metal, rubber material respectively among the present invention, the skilled craftsman can be by Fig. 1-12 Assembling Production.Working procedure of the present invention is made up of positive reverse gear case, these two-part of planet gear stageless speed variator.Positive reverse gear case is realized positive reverse gear selection, and when gear 7 overlapped with ring gear 6, gear was in neutral position, and positive reverse gear case is in the state of quitting work; Make the shift fork 117 on the axle 116 stir ring gear 6 with gear 7, when gear 3 meshes and connects by slide block 118 when promoting operating stem 120, gear 3 constitutes positive grade of combination with gear 5 engagements, and positive reverse gear case is in positive shelves working state; Make the shift fork 117 on the axle 116 stir ring gear 6 with gear 7, when gear 10 meshes and connects by slide block 118 when promoting operating stem 120, gear 10 constitutes reverse gear by intermediate gear 13 with gear 12 engagements and makes up, and positive reverse gear case is in the reverse gear working state.Planet gear stageless speed variator is to adopt the rotation axis kind of drive, all advantages of plane table thermoconductivity meter have been inherited, and it is that stepless speed changing mechanism with two different structures constitutes jointly, therefore it has selectivity arbitrarily, in actual applications, the stepless speed changing mechanism of its two different structures both can constitute a stepless speed variator separately and also can be on demand constitute a stepless speed variator with the stepless speed changing mechanism tandem of two same structures, through the testing apparatus test, confirmed that it has reliable practicability.Shown in Figure 13 structure: two pitch wheels 41,42, tooth bar 3 ' with gear 42 engagements, tooth bar 4 ' mesh with gear 41, constitute a testing apparatus, when act on tooth bar 4 ' on power with drive tooth bar 3 ' power when equating, gear 41,42 is done rotation, tooth bar 3 ', 4 ' to the motion of same direction, when act on tooth 4 ' power and actuation gear 41,42, tooth bar 3 ' power when equating, gear 41,42 stops rotation, with tooth bar 3 ', 4 ' to the motion of same direction.The condition that makes Figure 13 structure reach above-mentioned work effect is: act on tooth bar 4 ' power direction with drive tooth bar 3 ' the direction of power parallel, promptly two tooth bars 3 ', 4 ' parallel.Structure and working principle according to Figure 13, adopt the rotation axis kind of drive, just based on common plane table thermoconductivity meter structure, on each championship of pivoted arm, install a planetary pinion additional, and make pivoted arm, ring gear is in not stationary state, utilize the input gear and the number of teeth difference of output ring gear to set required velocity ratio, this is a kind of organization plan of planet gear stageless speed variator, as shown in figure 14: input gear 1 and planetary pinion 41 engagements, planetary pinion 41 and planetary pinion 42 engagements, planetary pinion 42 and ring gear 65 engagements, force direction 5 ', 6 ', divide folding according to figure, this structure exists two factor that does not possess practicability: difference in torque O
1O
2≠ O
1O
3The direction 5 of active force ', 6 ' not parallel.Again as shown in figure 15: input gear 1 ' mesh with planetary pinion 41, planetary pinion 41 and planetary pinion 42 engagements, planetary pinion 42 and ring gear 65 engagements, force direction 2 '), (7 '), divide folding according to figure, though this structure has solved the parallel problem of force direction, it still exists difference in torque O
1O
2≠ O
1O
3The test of testing apparatus shows: when the power on acting on the input gear will be passed through the planet gear drives ring gear, ring gear does not only move to same direction with the input gear, be that planetary pinion is in rotation on the contrary, generation is the revolution at center around the input Gear axis, and direction of its revolution and input gear direction of rotation, Figure 14,15 planetary gear construction scheme just can't reach the work effect identical with Figure 13 structure like this, also just can not reach infinite variable speed purpose, not have practicability.From above-mentioned test result, make the planetary gear construction of rotation axis transmission reach infinite variable speed purpose, must possess following two conditions: the direction of active force is parallel; Eliminate difference in torque.The present invention is based on Figure 15, utilize lever principle to eliminate difference in torque, as Fig. 6,7, shown in 8: by stem gear frame 40,56, gear 41,42, axle 47,55 planetary gear sets that constitute are done as a whole, stem gear frame 40, shaft part 38 on 56, the 49th, this whole central pivot point of planetary gear set, its method for supporting such as Fig. 1,4,5,6,7,8, shown in 9: the positioning port 30 on the positioning arm 29 is enclosed within on the step 35 of stem gear frame 40, spline position card 36 on the step 35 engages with spline position card 31 on the positioning port 30, prevent that stem gear frame 40 from rotating, positioning port 24 on the positioning arm 22 is enclosed within on the step 50 of stem gear frame 56, spline position card 48 on the step 50 engages with spline position card 28 on the positioning port 24, prevent that stem gear frame 56 from rotating, roller 59 on the shaft part 38 of stem gear frame 40 is done the support of rolling with the supporting wheel 61 that is fixed on the input gear shaft 9, roller 62 on the shaft part 49 of stem gear frame 56 is done to roll and is supported with being fixed on supporting wheel 64 on the input gear shaft 9, and with input gear shaft 9 on gear 66, ring gear 65, tep reel gear 67, constitute a planetary gear stepless speed changing mechanism.Show through testing apparatus test, must accomplish following 3 points: gear 41,42 equal diameters, its central point should with the central spot of input gear shaft 9 on same straight line; The diameter of the step 35,50 on roller 59,62 and the stem gear frame 40,56 is equal to or less than the centre distance of two axis holes 37,39 on the stem gear frame 40; The length of the spline screens 36,48 on the step 35,50 of stem gear frame 40,56 approximates the radius of gear 41.It just can realize stepless change like this, has practicability.Shown in Figure 10,11,12: the planetary pinion assemblying body that constitutes by gear carrier 75,80, gear 70,73, axle 68,71, positioning arm 74, pin 78 etc., its method for supporting is as shown in Figure 1: roller 91,94 engages to do to roll with support ring 92 on the tep reel gear 67 and cooperates, roller 95,97 engages to do to roll with disc type support ring 96 and cooperates, the planetary pinion assemblying body is supported, and constitute another stepless speed changing mechanisms with gear 98, ring gear 93 tep reel output shafts 101 on the tep reel gear 67.Although the structure of this stepless speed changing mechanism and previous stepless speed changing mechanism is different, it is poor that it and the former utilize lever principle to eliminate torque equally, and with the former same working principle is arranged.The testing apparatus test shows that it can realize stepless change.Has practicability.With the stepless speed changing mechanism in front among Fig. 1 is example, when its velocity ratio is set at 5: 1, its working procedure is as follows: the moment of torsion of input gear shaft 9 inputs is less than driving five/for the moment of tep reel gear 67 required torques, and stepless speed changing mechanism can not be worked, and is in halted state; The moment of torsion of importing when input gear shaft 9 equals to drive five/for the moment of tep reel gear 67 required torques, the planetary pinion assemblying body that is made of stem gear frame 40,56, gear 41,42, axle 47,55, positioning arm 22,29 remains static, gear 41,42 on the assemblying body is done rotation, at this moment tep reel gear 67 is by setting the velocity ratio output speed, input gear shaft 9 and the rotating speed of tep reel gear 67 and the ratio maximum of moment of torsion; When the moment of torsion of input gear shaft 9 input greater than driving 1/5th of tep reel gear 67 required torques, less than 1 o'clock, be used for acceleration greater than 1/5th less than this part moment of torsion of 1, be subjected to the effect of this part moment of torsion, the planetary pinion assemblying body begins to be changed into dynamically by static state, and the gear 41,42 on the assemblying body is in rotation, and producing around input gear shaft 9 axis is the revolution at center, at this moment imports the rotating speed on gear shaft 9 and the tep reel gear 67 and the ratio of moment of torsion and just produces continuous variation; When the moment of torsion of input gear shaft 9 input equate with driving tep reel gear 67 required torques, when equaling 1, gear 41,42 stops rotation, the planetary pinion assemblying body rotates synchronously with input gear shaft 9, tep reel gear 67, at this moment import the rotating speed on gear shaft 9 and the tep reel gear 67 and the ratio minimum of moment of torsion, promptly 1: 1, so just realize stepless change.
Claims (1)
1, a kind of step-less speed changing planetary gear system, form by positive reverse gear case, planet gear stageless speed variator and gear, gear carrier, axle, positioning arm etc., it is characterized in that: in positive reverse gear case, the lining (4) that is fixed on the gear (3) is done movingly with input gear shaft (9), and the gear (5) on the gear shaft (1) constitutes positive shelves combination with gear (3) engagement; The lining (11) that is fixed on the gear (10) is done movingly with the minor axis (17) on the axis hole (112) that is fixed on substrate (19) with the lining (14) that input gear shaft (9) is fixed on the intermediate gear (13) movingly, pressing plate (15) is fixed on minor axis (17) axle head by screw (16), and another gear (12) on the gear shaft (1) constitutes the reverse gear combination with gear (10) by intermediate gear (13) engagement; The gear (7) that is fixed on the input gear shaft (9) constitutes the gear clutch with ring gear (6) engagement; The slide block (118) that is contained on the shift fork (117) is stuck in the groove (125) of ring gear (6), shift fork (117) is fixed on the axle (116), axle (116) is done movingly with the axis hole (119) on the housing (2), operating stem (120) is fixed on the axle (116), bearing (129) on the gear shaft (1) is located in the bearing support (130) on the housing (2), another bearing (131) on the gear shaft (1) is located in the bearing support (132) on the substrate (19), bearing (127) in input gear shaft (9) is located in the bearing support (128) on the housing (2), another bearing (110) in input gear shaft (9) is located in the bearing support (111) on the substrate (19), axle envelope (121), (133), key (8), screw (114), (124), installation opening (122), cover plate (123), spacer ring (18), (21), (115), back-up ring (126), it is fastening that housing (2) and substrate (19) dock by screw (113), constitutes positive reverse gear case; Planet gear stageless speed variator is that basic stepless speed changing mechanism combines by two different planetary pinion assemblying bodys, in a planetary pinion assemblying body, two are removed screw hole (26), (34) have any different outside, the identical positioning arm in other positions (22), (29) there is an axis hole (27) at center, court radially has a groove (23) on each championship, (32), groove (23), (32) go up towards axially having a positioning port (24), (30), positioning port (24), a spline screens (28) is arranged (30), (31), positioning pin hole (25), (33), two identical stem gear framves (40), (56), gear (41) is done movingly by roller (51) and axle (55), one (52) of axle (55) are fixed on the axis hole (39) of stem gear frame (40), other end (54) is fixed on the axis hole (53) of stem gear frame (56), do movingly by roller (43) and axle (47) with gear (41) meshed gears (42), one (44) of axle (47) are fixed on the axis hole (37) of stem gear frame (40), other end (46) is fixed on the axis hole (45) of stem gear frame (56), constitute planetary gear set, two positioning arm (22), (29) groove (23) on each championship, a planetary gear set is housed (32), positioning port (24) on the groove (23) is enclosed within on the step (50) of stem gear frame (56), spline screens (48) on the step (50) engages with spline screens (28) on the positioning port (24), positioning port (30) on the groove (32) is enclosed within on the step (35) of stem gear frame (40), spline screens (36) on the step (35) engages with spline screens (31) on the positioning port (30), locating stud (58) pin-and-hole (25) of packing into, (33) interior with positioning arm (22), (29) location, screw (57) is fastened on screw (26), (34) in, the planetary pinion assemblying body that constitutes is enclosed within on the input gear shaft (9) by axis hole (27), roller (59) is done movingly by roller (60) and the shaft part (38) on the stem gear frame (40), roller (62) is done movingly by roller (63) and the shaft part (49) on the stem gear frame (56), the supporting wheel (61) that is fixed on the input gear shaft (9) cooperates with the rolling of roller (59) joint do, the supporting wheel (64) that is fixed on the input gear shaft (9) cooperates with the rolling of roller (62) joint do, the planetary pinion assemblying body is supported, gear (41) and gear (66) engagement of importing on the gear shaft (9), gear (42) and ring gear (65) engagement that is fixed on the tep reel gear (67), tep reel gear (67) is slidingly matched by scuff-resistant coating (100) on the hole wall (99) and input gear shaft (9), constitutes a stepless speed changing mechanism; Import as top when the gear (66) of input gear shaft (9), when tep reel gear (67) was exported as terminal, this stepless speed changing mechanism also was a stepless speed variator; In another planetary pinion assemblying body, two identical gear carriers (75), (80), gear (70) is done movingly by roller (84) and axle (68), one (82) of axle (68) are fixed on the axis hole (69) after passing the axis hole (69) of gear carrier (75), be fixed on the axis hole (81) behind the axis hole (81) of other end (83) gear carrier (80) of axle (68), do movingly by roller (85) and axle (71) with gear (70) meshed gears (73), one (88) of axle (71) are fixed on the axis hole (72) after passing the axis hole (72) of gear carrier (75), the other end (87) of axle (71) is fixed on the axis hole (86) after passing the axis hole (86) of gear carrier (80), constitute planetary gear set, the pin-and-hole (79) at positioning arm (74) two is done movingly with pin (78), one (76) of pin (78) are fixed on the pin-and-hole (77) of gear carrier (75), pin (78) other one (90) is fixed on the pin-and-hole (89) of gear carrier (80), locate by such connection between the planetary gear set, the planetary pinion assemblying body that constitutes is enclosed within on the gear (98) of tep reel gear (67), roller (91) is done movingly by the roller (134) and a spindle nose (82) of axle (68), roller (95) is done movingly by roller (135) and another spindle nose (83) of axle (68), roller (94) is done movingly by the roller (137) and a spindle nose (88) of axle (71), roller (97) is done movingly by roller (136) and another spindle nose (87) of axle (71), roller (91), (94) with tep reel gear (67) dish on support ring (92) engage to do roll and to cooperate, roller (95), (97) be fixed on tep reel gear (67) on disc type support ring (96) engage to do roll and to cooperate, the planetary pinion assemblying body is supported, gear (98) engagement on gear (73) and the tep reel gear (67), gear (70) and ring gear (93) engagement that is fixed on the tep reel output shaft (101), tep reel output shaft (101) is done movingly by roller (106) and input gear shaft (9), bearing (103) on the tep reel output shaft (101) is located in the bearing support (104) on the housing (102), constitutes another stepless speed changing mechanism; Gear (98) on tep reel gear (67) is as the top input, and when tep reel output shaft (101) was exported as terminal, this stepless speed changing mechanism was again a stepless speed variator; Two stepless speed changing mechanisms and axle envelope (105), end stake (107), an abrasionproof pad (108), (109), housing (102) and substrate (19) and dock by screw (20) fasteningly, unite stepless speed variator of formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01117991 CN1122765C (en) | 2001-04-30 | 2001-04-30 | Step-less speed changing planetary gear system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01117991 CN1122765C (en) | 2001-04-30 | 2001-04-30 | Step-less speed changing planetary gear system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1323707A CN1323707A (en) | 2001-11-28 |
| CN1122765C true CN1122765C (en) | 2003-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01117991 Expired - Fee Related CN1122765C (en) | 2001-04-30 | 2001-04-30 | Step-less speed changing planetary gear system |
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| Country | Link |
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| CN (1) | CN1122765C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412412C (en) * | 2005-11-01 | 2008-08-20 | 邹政耀 | Steepless gear in three conditions for vehicles |
| CN102162505A (en) * | 2011-04-27 | 2011-08-24 | 北京理工华创电动车技术有限公司 | Planet gear type automatic speed change system for electric automobile |
| US8961112B2 (en) * | 2012-03-26 | 2015-02-24 | United Technologies Corporation | Torque frame bushing arrangement for gas turbine engine fan drive gear system |
| CN102678851A (en) * | 2012-06-01 | 2012-09-19 | 姚保民 | Planetary gear stepless speed change device |
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2001
- 2001-04-30 CN CN 01117991 patent/CN1122765C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1323707A (en) | 2001-11-28 |
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