CN108397524B - Planetary gear speed change mechanism and automobile - Google Patents
Planetary gear speed change mechanism and automobile Download PDFInfo
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- CN108397524B CN108397524B CN201810399420.XA CN201810399420A CN108397524B CN 108397524 B CN108397524 B CN 108397524B CN 201810399420 A CN201810399420 A CN 201810399420A CN 108397524 B CN108397524 B CN 108397524B
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- planetary gear
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- 230000005540 biological transmission Effects 0.000 claims abstract description 49
- 230000002441 reversible effect Effects 0.000 claims description 41
- 230000001360 synchronised effect Effects 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/78—Special adaptation of synchronisation mechanisms to these gearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
- Retarders (AREA)
Abstract
The invention relates to the technical field of automobile parts, in particular to a planetary gear speed change mechanism and an automobile. The planetary gear set is arranged in the first fixing frame, the input shaft is connected with the output shaft through a lantern ring, the input shaft is connected with the first gear sleeve through a connecting mechanism, the first gear groove is connected to the connecting mechanism, a plurality of groups of gear teeth are arranged at one end, far away from the first gear groove, of the first gear sleeve, and the first gear groove drives the gear teeth to move towards the planetary gear set so as to enable the gear teeth to be meshed with the planetary gear set; one end of the transmission mechanism is used for being meshed with the planetary gear set, the other end of the transmission mechanism is used for being connected with the advancing mechanism, the other end of the advancing mechanism is connected with the second gear sleeve, the second gear sleeve is connected with the second gear groove, and the second gear sleeve is connected with the output shaft so as to drive the output shaft to rotate. In order to alleviate the gear that exists among the prior art can have the sound when biting the tooth, the lower technical problem of life of shelves tooth.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to a planetary gear speed change mechanism and an automobile.
Background
A typical multi-speed transmission uses a combination of friction clutches, planetary gear arrangements and fixed interconnections to achieve a plurality of gear ratios. The number and physical arrangement of the planetary gear sets is typically dictated by packaging, cost and desired speed ratios. While current transmissions achieve their intended purpose, the need for new and improved transmission configurations is essentially constant with the popularity of automobiles.
The conventional transmissions used in automobiles are of a two-shaft and multi-shaft transmission structure, and a plurality of gears are provided on a main shaft thereof to engage with a counter shaft or a plurality of gear change mechanism teeth of a plurality of counter shafts, thereby reducing the power output. However, when the gear is shifted in the reverse gear in the existing automobile, the transmission can rattle when the gear is meshed, and the service life of the gear is short.
Disclosure of Invention
The invention aims to provide a planetary gear speed change mechanism so as to solve the technical problems that in the prior art, when a gear is engaged, a transmission can rattle, and the service life of gear teeth is short.
The present invention provides a planetary gear speed change mechanism, comprising: the device comprises an input shaft, an output shaft, a lantern ring, a first gear sleeve, a second gear sleeve, a first gear groove, a second gear groove, a first fixing frame, a planetary gear set, a travelling mechanism and a transmission mechanism;
the planetary gear set is arranged in the first fixing frame, the input shaft is connected with the output shaft through the lantern ring, the input shaft is connected with the first gear sleeve through a connecting mechanism, the first gear engaging groove is connected to the connecting mechanism, one end of the first gear sleeve, which is far away from the first gear engaging groove, penetrates through the first fixing frame, a plurality of groups of gear teeth are arranged at one end of the first gear sleeve, which is far away from the first gear engaging groove, and the first gear engaging groove drives the gear teeth to move towards the position close to the planetary gear set so as to enable the gear teeth to be meshed with the planetary gear set;
one end of the transmission mechanism is used for being meshed with the planetary gear set, the other end of the transmission mechanism is used for being connected with the advancing mechanism, the other end of the advancing mechanism is connected with the second gear sleeve, the second gear sleeve is connected with the second gear groove, and the second gear sleeve is connected with the output shaft to drive the output shaft to rotate.
Further, the advancing mechanism comprises a fixed disc, an advancing gear sleeve and a reverse gear outer sleeve;
the fixed disk is connected with the transmission mechanism through a transmission connecting plate, the advancing gear sleeve is fixedly connected with the fixed disk, the advancing gear sleeve can move in the reverse gear outer sleeve relatively, and the advancing gear sleeve is meshed with the reverse gear outer sleeve.
Further, the traveling gear sleeve is provided with internal teeth, external teeth and a first gear ring, the first gear ring is arranged above the internal teeth, the first gear ring and the second gear sleeve are arranged at intervals, when the traveling gear is engaged, the first gear ring moves towards one end, close to the second gear sleeve, of the traveling gear sleeve, and the first gear ring is connected with a first synchronous compression ring arranged at one end, close to the traveling gear sleeve, of the second gear sleeve.
Further, a reverse gear planetary gear shaft, a reverse gear outer sleeve fixing ring and a second gear ring are arranged in the reverse gear outer sleeve, the reverse gear outer sleeve fixing ring is arranged on the inner side of the reverse gear outer sleeve, the reverse gear planetary gear is arranged on the reverse gear outer sleeve fixing ring, the reverse gear planetary gear is arranged on the reverse gear planetary gear shaft, and the external teeth are meshed with the reverse gear planetary gear; when the reverse gear is shifted, the second gear ring moves towards one end close to the second gear sleeve, and the second gear ring is connected with a first synchronous compression ring arranged at one end, close to the advancing gear sleeve, of the second gear sleeve.
Further, the connecting mechanism comprises a fixed block, a second fixed frame and a movable groove;
the movable groove comprises a first coaxial fixed ring and a second coaxial fixed ring, and the first coaxial fixed ring and the second coaxial fixed ring are arranged at intervals in parallel along the height direction of the second fixing frame;
the fixed blocks are multiple, the fixed blocks are uniformly distributed on the input shaft, through holes used for the fixed blocks to penetrate through are formed in the first gear sleeve, and the fixed blocks penetrate through the through holes and are arranged in the movable grooves.
Further, the planetary gearset includes a plurality of first planetary gear shafts, a plurality of third gear rings, and a plurality of first planetary gears;
the first planet gear shaft is arranged on the first fixing frame, the first planet gears are arranged on the planet gear shaft, the third gear rings are connected with the first planet gears in a transmission mode, a plurality of third gear rings are used for being connected with one end, far away from the first gear engaging groove, of the first gear sleeve, and gear teeth are used for being meshed with the first planet gears.
Further, one end of the first gear sleeve, which is far away from the first gear engaging groove, is provided with a fixed sliding tooth, the first fixed ring groove is used for being clamped with a fixed sliding groove arranged on the second synchronous pressing ring, and the second synchronous pressing ring is used for being connected with the third gear ring.
Further, the first fixing frame comprises a planet gear front support, a planet gear rear support and a positioning frame;
the positioning frame is arranged between the front planet gear support and the rear planet gear support and is used for supporting the first planet gear shaft.
Further, the device also comprises a locking mechanism;
the locking mechanism comprises an external fixing frame, an external gear locking device and an internal gear locking device, wherein the internal gear locking device and the external gear locking device are both arranged on the front planet gear support, and one end, far away from the front planet gear support, of the external gear locking device is connected with the external fixing frame.
An automobile having the planetary gear change mechanism as described above.
The present invention provides a planetary gear speed change mechanism, comprising: the device comprises an input shaft, an output shaft, a lantern ring, a first gear sleeve, a second gear sleeve, a first gear groove, a second gear groove, a first fixing frame, a planetary gear set, a travelling mechanism and a transmission mechanism; the planetary gear set is arranged in the first fixing frame, the input shaft is connected with the output shaft through the lantern ring, the input shaft is connected with the first gear sleeve through a connecting mechanism, the first gear engaging groove is connected to the connecting mechanism, one end of the first gear sleeve, which is far away from the first gear engaging groove, penetrates through the first fixing frame, a plurality of groups of gear teeth are arranged at one end of the first gear sleeve, which is far away from the first gear engaging groove, and the first gear engaging groove drives the gear teeth to move towards the position close to the planetary gear set so as to enable the gear teeth to be meshed with the planetary gear set; one end of the transmission mechanism is used for being meshed with the planetary gear set, the other end of the transmission mechanism is used for being connected with the advancing mechanism, the other end of the advancing mechanism is connected with the second gear sleeve, the second gear sleeve is connected with the second gear groove, and the second gear sleeve is connected with the output shaft to drive the output shaft to rotate. By adopting the scheme, the first gear engaging groove is connected with the first gear engaging sleeve, the first gear engaging groove drives the multiple groups of gear teeth at one end of the first gear engaging groove, which are far away from the first gear engaging groove, to move towards the planetary gear set, the gears on the first gear engaging groove are in one-to-one correspondence with the multiple groups of gear teeth, the gear teeth are connected with the transmission mechanism, the transmission mechanism conveys power to the advancing mechanism, the advancing mechanism is connected with the second gear engaging groove, the noise generated during gear engaging can be slowed down by the arrangement of the advancing mechanism, the damaged probability of the gear teeth is reduced, the transmission can have noise when biting the gear teeth, and the technical problem of lower service life of the gear teeth is solved.
The automobile provided by the invention is provided with the planetary gear speed change mechanism. The beneficial effects generated by the planetary gear speed change mechanism are the same as those of the planetary gear speed change mechanism, and are not repeated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a planetary gear speed change mechanism provided by an embodiment of the present invention;
FIG. 2 is a longitudinal cross-sectional view of a coupling mechanism in a planetary gear transmission provided by an embodiment of the present invention;
FIG. 3 is a partial schematic view of a first gear sleeve in a planetary gear transmission provided in an embodiment of the present invention;
FIG. 4 is a longitudinal block diagram of a shift groove in a planetary gear transmission provided by an embodiment of the present invention;
FIG. 5 is a schematic diagram of a planetary gear set of a planetary gear speed change mechanism according to an embodiment of the present invention;
FIG. 6 is a gear longitudinal structural view of a planetary gear set of a planetary gear speed change mechanism provided by an embodiment of the present invention;
FIG. 7 is a schematic view of the overall structure of a first gear sleeve gear tooth of a planetary gear transmission according to an embodiment of the present invention;
FIG. 8 is a partial schematic view of a first gear sleeve tooth of a planetary gear change mechanism provided by an embodiment of the present invention;
fig. 9 is a schematic structural view of a second synchronizing ring in the planetary gear speed change mechanism according to the embodiment of the present invention;
FIG. 10 is a longitudinal block diagram of a planetary gear change travel mechanism provided by an embodiment of the present invention;
FIG. 11 is a partial view in transverse perspective of a planetary gear change mechanism provided in an embodiment of the present invention in a forward gear;
FIG. 12 is a partial view in transverse perspective of a planetary gear change mechanism according to an embodiment of the present invention in reverse gear;
fig. 13 is a schematic diagram of an overall structure of a traveling mechanism in a planetary gear transmission mechanism according to an embodiment of the present invention.
Icon: 1-an input shaft; 2-an output shaft; 3-collar; 4-a first gear sleeve; 5-a second gear sleeve; 6-a first gear engaging groove; 7-a second gear engaging groove; 8-a transmission mechanism; 9-a fixed disk; 10-a travel gear sleeve; 11-a reverse gear outer sleeve; 12-a transmission connecting plate; 13-a second fixing frame; 14-a movable groove; 15-a first planetary gear; 16-a first planetary gear shaft; 17-third gear ring; 18-a front carrier for the planet gears; 19-a rear carrier for the planetary gears; 20-positioning frames; 21-an external fixing frame; 22-gear outer lock; 23-gear inner lock-up device; 24-fixing blocks; 25-a coaxial fixation ring; 26-a first synchronization pressure ring; 27-a second synchronizing pressure ring; 28-first gear ring; 29-a second gear ring; 4 a-gear teeth; 4 b-a through hole; 4 c-fixed sliding teeth; 10 a-reverse gear planetary gear; 10 b-reverse gear planetary gear shafts; 10 c-reversing an outer sleeve fixing ring; 27 a-fixed chute.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the indicated apparatus or element must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.
In the description of the present invention, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 10, the present invention provides a planetary gear speed change mechanism, comprising: the transmission comprises an input shaft 1, an output shaft 2, a lantern ring 3, a first gear sleeve 4, a second gear sleeve 5, a first gear groove 6, a second gear groove 7, a first fixing frame, a planetary gear set, a travelling mechanism and a transmission mechanism 8;
the planetary gear set is arranged in the first fixing frame, the input shaft 1 and the output shaft 2 are connected through the lantern ring 3, the input shaft 1 and the first gear sleeve 4 are connected through a connecting mechanism, the first gear groove 6 is connected to the connecting mechanism, one end of the first gear sleeve 4, which is far away from the first gear groove 6, passes through the first fixing frame, a plurality of groups of gear teeth 4a are arranged at one end of the first gear sleeve 4, which is far away from the first gear groove 6, and the first gear groove 6 drives the gear teeth 4a to move towards the position close to the planetary gear set so as to enable the gear teeth 4a to be meshed with the planetary gear set;
one end of the transmission mechanism 8 is used for being meshed with the planetary gear set, the other end of the transmission mechanism 8 is used for being connected with the advancing mechanism, the other end of the advancing mechanism is connected with the second gear sleeve 5, the second gear sleeve 5 is connected with the second gear engaging groove 7, and the second gear sleeve 5 is connected with the output shaft 2 to drive the output shaft 2 to rotate.
The sleeve ring 3 is an intermediate shaft sleeve iron ring, and the input shaft 1 and the output shaft 2 are both fixed on the intermediate shaft sleeve iron ring, so that the input shaft 1 and the output shaft 2 are on the same straight line.
The present invention provides a planetary gear speed change mechanism, comprising: the transmission comprises an input shaft 1, an output shaft 2, a lantern ring 3, a first gear sleeve 4, a second gear sleeve 5, a first gear groove 6, a second gear groove 7, a first fixing frame, a planetary gear set, a travelling mechanism and a transmission mechanism 8; the planetary gear set is arranged in the first fixing frame, the input shaft 1 and the output shaft 2 are connected through the lantern ring 3, the input shaft 1 and the first gear sleeve 4 are connected through a connecting mechanism, the first gear groove 6 is connected to the connecting mechanism, one end of the first gear sleeve 4, which is far away from the first gear groove 6, passes through the first fixing frame, a plurality of groups of gear teeth 4a are arranged at one end of the first gear sleeve 4, which is far away from the first gear groove 6, and the first gear groove 6 drives the gear teeth 4a to move towards the position close to the planetary gear set so as to enable the gear teeth 4a to be meshed with the planetary gear set; one end of the transmission mechanism 8 is used for being meshed with the planetary gear set, the other end of the transmission mechanism 8 is used for being connected with the advancing mechanism, the other end of the advancing mechanism is connected with the second gear sleeve 5, the second gear sleeve 5 is connected with the second gear engaging groove 7, and the second gear sleeve 5 is connected with the output shaft 2 to drive the output shaft 2 to rotate. By adopting the scheme, the first gear engaging groove 6 is connected with the first gear engaging sleeve 4, the first gear engaging groove 6 drives the plurality of groups of gear teeth 4a at one end of the first gear engaging sleeve 4, which is far away from the gear engaging groove, to move towards the planetary gear set, gears on the first gear engaging groove 6 are arranged in one-to-one correspondence with the plurality of groups of gear teeth 4a, the gear teeth 4a are connected with the transmission mechanism 8, the transmission mechanism 8 transmits power to the advancing mechanism, the advancing mechanism is connected with the second gear engaging sleeve 5 and the second gear engaging groove 7, the setting of the advancing mechanism can slow down noise generated during gear engaging, the damaged probability of the gear teeth 4a is reduced, and the technical problem that when gear engaging in the prior art, the transmission has noise during gear engaging and the service life of the gear teeth 4a is lower is solved.
As shown in fig. 11-13, further, on the basis of the above-described embodiment, the traveling mechanism includes a fixed disk 9, a traveling range sleeve 10, and a reverse range outer sleeve 11;
the fixed disk 9 is connected with the transmission mechanism 8 through a transmission connecting plate 12, the traveling gear sleeve 10 is fixedly connected with the fixed disk 9, the traveling gear sleeve 10 can rotate in the reverse gear outer sleeve 11 relatively, and the traveling gear sleeve 10 is meshed with the reverse gear outer sleeve 11.
Further, the traveling gear sleeve 10 is provided with internal teeth, external teeth and a first gear ring 28, the first gear ring 28 is arranged above the internal teeth, the first gear ring 28 and the second gear sleeve 5 are arranged at intervals, when the traveling gear is engaged, the second gear sleeve 5 moves towards one end of the second gear sleeve 5, which is close to the first gear ring 28, and the first gear ring 28 is connected with a first synchronous pressure ring 26 arranged at one end of the second gear sleeve 5, which is close to the traveling gear sleeve 10.
In this embodiment, when the first gear groove is engaged with the forward gear, the sleeve fixing plate 9 and the traveling gear sleeve 10 are integrally provided, a first gear ring 28 is provided on the inner side of the end of the traveling gear sleeve away from the fixing plate 9, the first gear ring 28 is engaged with the advancing first synchronization pressure ring 26, and when the first gear is shifted to the reverse gear, the first gear ring is disengaged from the first synchronization pressure ring 26.
On the basis of the above embodiment, further, a reverse gear planetary gear 10a, a reverse gear planetary gear shaft 10b, a reverse outer sleeve fixing ring 10c and a second gear ring 29 are arranged in the reverse gear outer sleeve 11, the reverse outer sleeve fixing ring 10c is arranged on the inner side of the reverse gear outer sleeve 11, the reverse gear planetary gear 10a is arranged on the reverse outer sleeve fixing ring 10c, the reverse gear planetary gear is arranged on the reverse gear planetary gear shaft 10b, and the external teeth are meshed with the reverse gear planetary gear; when the reverse gear is shifted, the second gear sleeve 5 moves to one end of the second gear sleeve 5 close to the second gear ring 29, and the second gear ring 29 is connected with a first synchronous compression ring 26 arranged at one end of the second gear sleeve 5 close to the travelling gear sleeve 10.
In this embodiment, the reverse gear planetary gear 10a is meshed with the external teeth of the traveling gear sleeve 10, the front end of the reverse gear planetary gear shaft 10b extends out of the front part of the reverse outer sleeve, and is fixed to the reverse gear external connection plate by screws, and when reversing, the second gear ring 29 provided on the second gear cylinder is connected to the first synchronization pressure ring 26.
Further, on the basis of the above embodiment, the connecting mechanism includes a fixed block 24, a second fixed frame 13 and a movable slot 14;
the movable groove 14 comprises a first coaxial fixed ring 25 and a second coaxial fixed ring 25, and the first coaxial fixed ring 25 and the second coaxial fixed ring 25 are arranged at intervals in parallel along the height direction of the second fixed frame 13;
the number of the fixed blocks 24 is plural, the fixed blocks 24 are uniformly distributed on the input shaft 1, the first gear sleeve 4 is provided with a through hole 4b for the fixed block 24 to pass through, and the fixed block 24 passes through the through hole 4b and is arranged in the movable groove 14.
The number of the fixing blocks 24 may be two, three or more.
In this embodiment, the movable slot 14 is disposed on the second fixing frame 13, one end of the fixed block 24 is fixedly disposed on the input shaft 1, the fixed block 24 is disposed perpendicular to the input shaft 1, the other end of the fixed block 24 passes between the first fixed ring and the second fixed ring to define the position of the fixed block 24, the first gear sleeve 4 is connected with the fixed block 24, the first gear engaging slot 6 is also connected with the fixed block 24, so that the first gear engaging slot 6 is connected with the first gear sleeve 4, and the first gear engaging slot 6 engages to drive the gear teeth 4a on the first gear sleeve 4 to move, so as to achieve gear engagement.
Further to the above embodiment, the planetary gear set includes a plurality of first planetary gear shafts 16, a plurality of third gear rings 17, and a plurality of first planetary gears 15;
the first planet gear shaft 16 is arranged on the first fixing frame, the first planet gears 15 are arranged on the planet gear shaft, the third gear ring 17 is in transmission connection with the first planet gears 15, a plurality of third gear rings 17 are used for being connected with one end, far away from the first gear engaging groove 6, of the first gear sleeve 4, and the gear teeth 4a are used for being meshed with the first planet gears 15.
Further, a fixed sliding tooth 4c is disposed at one end of the first gear sleeve 4 away from the first gear engaging groove 6, the first fixed ring groove is used for being clamped with a fixed sliding groove 27a disposed on the second synchronous pressing ring 27, and the second synchronous pressing ring 27 is used for being connected with the third gear ring 17.
In this embodiment, the fixed sliding tooth 4c is disposed at one end of the first gear sleeve 4 far away from the first gear engaging groove 6, the fixed sliding tooth 4c is used to be clamped with the fixed sliding groove 27a disposed on the second synchronizing compression ring 27, and the second synchronizing compression ring 27 is also abutted against the third gear ring 17, so that noise is small when the first planetary gear 15 is meshed with the gear tooth 4a, and meanwhile, the collision force between the first planetary gear 15 and the gear tooth 4a during meshing can be reduced, so that the service lives of the first planetary gear 15 and the gear tooth 4a are prolonged.
Further to the above embodiments, the first fixing frame includes a front planet gear carrier 18, a rear planet gear carrier 19, and a positioning frame 20;
the positioning frame 20 is disposed between the front planet carrier 18 and the rear planet carrier 19, and the positioning frame 20 is used for supporting the first planet gear shaft 16.
In this embodiment, the first fixing frame includes a front carrier 18 for planet gears, a rear carrier 19 for planet gears, and a positioning frame 20, and the positioning frame 20 is used to support the first planet gear shaft 16 so that the planet gears can be stably arranged.
On the basis of the embodiment, the device further comprises a locking mechanism;
the locking mechanism comprises an external fixing frame 21, an external gear locking device 22 and an internal gear locking device 23, wherein the internal gear locking device 23 and the external gear locking device 22 are arranged on the front planet gear carrier 18, and one end, away from the front planet gear carrier 18, of the external gear locking device 22 is connected with the external fixing frame 21.
In the embodiment, the gear outer locking device is locked on the outer fixing frame 21 when the middle and low speed (1, 2, 3 and 4) gears are hung, so that the front planet gear carrier 18 of the gear outer locking device is fixed and does not rotate; the planetary gear is fixed with the positioning frame 20 and the front planetary gear bracket 18 into a whole through screws by the planetary gear shaft; when the gear is engaged with the high gear (5), the outer gear locking device releases the outer fixing frame 21, and then the inner gear locking device 23 is locked, so that the front planet gear carrier 18 of the inner gear locking device is consistent with the rotating speed of the input shaft 1.
The automobile provided by the invention is provided with the planetary gear speed change mechanism. The beneficial effects generated by the planetary gear speed change mechanism are the same as those of the planetary gear speed change mechanism, and are not repeated.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. A planetary gear change mechanism, characterized by comprising: the device comprises an input shaft, an output shaft, a lantern ring, a first gear sleeve, a second gear sleeve, a first gear groove, a second gear groove, a first fixing frame, a planetary gear set, a travelling mechanism and a transmission mechanism;
the planetary gear set is arranged in the first fixing frame, the input shaft is connected with the output shaft through the lantern ring, the input shaft is connected with the first gear sleeve through a connecting mechanism, the first gear engaging groove is connected to the connecting mechanism, one end of the first gear sleeve, which is far away from the first gear engaging groove, penetrates through the first fixing frame, a plurality of groups of gear teeth are arranged at one end of the first gear sleeve, which is far away from the first gear engaging groove, and the first gear engaging groove drives the gear teeth to move towards the position close to the planetary gear set so as to enable the gear teeth to be meshed with the planetary gear set;
one end of the transmission mechanism is used for being meshed with the planetary gear set, the other end of the transmission mechanism is used for being connected with the advancing mechanism, the other end of the advancing mechanism is connected with the second gear sleeve, the second gear sleeve is connected with the second gear groove, and the second gear sleeve is connected with the output shaft to drive the output shaft to rotate;
the advancing mechanism comprises a fixed disc, an advancing gear sleeve and a reverse gear outer sleeve;
the fixed disc is connected with the transmission mechanism through a transmission connecting plate, the advancing gear sleeve is fixedly connected with the fixed disc, the advancing gear sleeve can move relative to the reverse gear outer sleeve, and the advancing gear sleeve is meshed with the reverse gear outer sleeve;
the traveling gear sleeve is provided with internal teeth, external teeth and a first gear ring, the first gear ring is arranged above the internal teeth, the first gear ring and the second gear sleeve are arranged at intervals, when a traveling gear is engaged, the first gear ring moves towards one end, close to the second gear sleeve, of the traveling gear sleeve, and the first gear ring is connected with a first synchronous compression ring arranged at one end, close to the traveling gear sleeve, of the second gear sleeve;
the reversing outer sleeve is internally provided with a reversing planetary gear, a reversing planetary gear shaft, a reversing outer sleeve fixing ring and a second gear ring, the reversing outer sleeve fixing ring is arranged on the inner side of the reversing outer sleeve, the reversing planetary gear is arranged on the reversing outer sleeve fixing ring, the reversing planetary gear is arranged on the reversing planetary gear shaft, and the external teeth are meshed with the reversing planetary gear; when the reverse gear is shifted, the second gear ring moves towards one end close to the second gear sleeve, and the second gear ring is connected with a first synchronous compression ring arranged at one end of the second gear sleeve close to the travelling gear sleeve;
the planetary gearset includes a plurality of first planetary gear shafts, a plurality of third gear rings, and a plurality of first planetary gears;
the first planet gear shafts are arranged on the first fixing frame, the first planet gears are arranged on the planet gear shafts, the third gear rings are in transmission connection with the first planet gears, a plurality of third gear rings are used for being connected with one end, far away from the first gear engaging grooves, of the first gear sleeve, and the gear teeth are used for being meshed with the first planet gears;
the lantern ring is an intermediate shaft sleeve iron ring.
2. The planetary gear change mechanism according to claim 1, wherein the connection mechanism comprises a fixed block, a second fixed mount, and a movable slot;
the movable groove comprises a first coaxial fixed ring and a second coaxial fixed ring, and the first coaxial fixed ring and the second coaxial fixed ring are arranged at intervals in parallel along the height direction of the second fixing frame;
the fixed blocks are multiple, the fixed blocks are uniformly distributed on the input shaft, through holes used for the fixed blocks to penetrate through are formed in the first gear sleeve, and the fixed blocks penetrate through the through holes and are arranged in the movable grooves.
3. The planetary gear transmission mechanism according to claim 1, wherein a fixed sliding tooth is provided at an end of the first gear sleeve away from the first gear groove, the fixed sliding tooth is used for being clamped with a fixed sliding groove provided on a second synchronous pressing ring, and the second synchronous pressing ring is used for being connected with the third gear ring.
4. The planetary gear change mechanism according to claim 3, wherein the first mount comprises a planetary gear front carrier, a planetary gear rear carrier, and a positioning carrier;
the positioning frame is arranged between the front planet gear support and the rear planet gear support and is used for supporting the first planet gear shaft.
5. The planetary gear change mechanism of claim 4, further comprising a locking mechanism;
the locking mechanism comprises an external fixing frame, an external gear locking device and an internal gear locking device, wherein the internal gear locking device and the external gear locking device are both arranged on the front planet gear support, and one end of the external gear locking device, which is far away from the front planet gear support, is connected with the front planet gear support through the external gear locking device
The external fixing frame is connected.
6. An automobile having the planetary gear change mechanism as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810399420.XA CN108397524B (en) | 2018-04-28 | 2018-04-28 | Planetary gear speed change mechanism and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810399420.XA CN108397524B (en) | 2018-04-28 | 2018-04-28 | Planetary gear speed change mechanism and automobile |
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| Publication Number | Publication Date |
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| CN108397524A CN108397524A (en) | 2018-08-14 |
| CN108397524B true CN108397524B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1483949A (en) * | 2003-08-09 | 2004-03-24 | 宁国聚隆实业有限公司 | Multe-gear large transmission ratio single-stage planetary gear wheel speed variator |
| JP3169050U (en) * | 2011-04-28 | 2011-07-07 | 廣欣工業股▲ふん▼有限公司 | Multi-speed transmission mechanism |
| WO2013159720A1 (en) * | 2012-04-26 | 2013-10-31 | Xiang Yongchuan | Automatic transmission |
| CN205429972U (en) * | 2016-02-02 | 2016-08-03 | 李振鲁 | Automatic speed changing device |
| CN208431338U (en) * | 2018-04-28 | 2019-01-25 | 陶择 | Epicyclic transmission and automobile |
-
2018
- 2018-04-28 CN CN201810399420.XA patent/CN108397524B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1483949A (en) * | 2003-08-09 | 2004-03-24 | 宁国聚隆实业有限公司 | Multe-gear large transmission ratio single-stage planetary gear wheel speed variator |
| JP3169050U (en) * | 2011-04-28 | 2011-07-07 | 廣欣工業股▲ふん▼有限公司 | Multi-speed transmission mechanism |
| WO2013159720A1 (en) * | 2012-04-26 | 2013-10-31 | Xiang Yongchuan | Automatic transmission |
| CN205429972U (en) * | 2016-02-02 | 2016-08-03 | 李振鲁 | Automatic speed changing device |
| CN208431338U (en) * | 2018-04-28 | 2019-01-25 | 陶择 | Epicyclic transmission and automobile |
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| Publication number | Publication date |
|---|---|
| CN108397524A (en) | 2018-08-14 |
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