CN113028003B - New energy automobile three-gear speed change structure - Google Patents

New energy automobile three-gear speed change structure Download PDF

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Publication number
CN113028003B
CN113028003B CN202110364829.XA CN202110364829A CN113028003B CN 113028003 B CN113028003 B CN 113028003B CN 202110364829 A CN202110364829 A CN 202110364829A CN 113028003 B CN113028003 B CN 113028003B
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China
Prior art keywords
gear
ring
disc
speed change
overrunning clutch
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CN202110364829.XA
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CN113028003A (en
Inventor
胡波
申朋
周长江
尹来容
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Changsha University of Science and Technology
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Changsha University of Science and Technology
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Priority to CN202110364829.XA priority Critical patent/CN113028003B/en
Publication of CN113028003A publication Critical patent/CN113028003A/en
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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
    • F16H3/46—Gearings having only two central gears, connected by orbital gears
    • 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
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • 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
    • 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
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/082—Planet carriers
    • 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
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/10—Braking arrangements
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/84—Data processing systems or methods, management, administration

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

A three-gear speed change structure of a new energy automobile comprises a gear lever, a gear ring, a planet wheel, a sun wheel and a sliding sleeve. The planetary gear train is formed by a plurality of planetary gears, a sun gear is arranged in the center of the planetary gear train, and the input shaft comprises a power input end and a tail end; the planetary gear train is provided with a first overrunning clutch, a second overrunning clutch and a first sleeve type planet carrier in the axial direction of the input shaft, a second gear ring is arranged on the outer side of the second overrunning clutch, a first gear ring is arranged on the outer side of the first overrunning clutch, the first sleeve type planet carrier comprises a first sleeve part and a first support part, and the first support part is connected with the planetary gear.

Description

New energy automobile three-gear speed change structure
Technical Field
The invention relates to the field of new energy automobiles, in particular to a three-gear speed change structure of a new energy automobile.
Background
On a traditional fuel oil automobile, in order to change the narrow use width of an engine and enlarge the working range of the engine, a multi-stage gearbox is adopted. For a new energy automobile, a transmission is still one of important factors influencing the endurance of the automobile, but a multi-stage gear transmission box as a fuel vehicle is obviously unnecessary, so that the new energy automobile at least comprises three gears of a forward first gear, a forward second gear and a reverse gear in consideration of comprehensive gear requirements and economy. The invention provides a planetary gear train three-gear automatic speed change system which can meet the working condition. For a planetary gear transmission, the important point is the design of gears, so that the speed change relationship among a sun gear, a planetary gear and a gear ring in a planetary gear train is fully utilized, the overall structure of a speed change system is more compact, and the space occupation and the production cost are reduced.
The prior art has the following problems and disadvantages in solving the above problems:
1. the speed change structure of the new energy automobile in the prior art can only realize the speed change capability of two forward gears, which means that when the speed change structure is used in a working condition with a reverse gear requirement, an additional reverse speed change device may be needed, and the mechanism complexity and the manufacturing cost are further increased.
2. In the planetary gear speed change structure in the prior art, the planetary gear train can only carry out transmission through one side, and interference can occur if bilateral transmission is realized.
3. In the speed change structure in the prior art, the friction clutch is generally sleeved at the near end of the power input shaft and is rarely arranged at the tail end of the power input shaft.
4. The speed change structure in the prior art changes the position of the clutch by rotating the shifting fork rod, realizes the engagement or the separation of the clutch and the high-speed gear hollow shaft, further realizes the high-speed and low-speed gear shifting, has a complex general structure, and has a more complex structure if multi-gear reversing is to be realized.
5. In the planetary gear train in the prior art, transmission is realized through a planetary carrier and the planetary gear train, the planetary carrier is generally fixed with a main shaft, however, a mechanism is fixed to form constraint, and more flexible functions cannot be realized.
6. In the friction clutch in the prior art, power is generally transmitted to a spring diaphragm, so that the edge of the diaphragm is tilted and separated from a friction plate, and a clutch function is realized. However, when the friction clutch is disposed at the end of the power input shaft, the situation changes, and how power is transmitted to the clutch and whether the magnitude of the transmitted power has an effect on the spring diaphragm are not determined.
7. The clutch gear shifting operation in the prior art generally needs three steps, wherein the first step is to switch the clutch, the second step is to shift gears, the third step is to recover the clutch, the process is long, and power interruption or fluctuation exists at the moment of engaging and disengaging the clutch.
8. In the speed change structure in the prior art, shifting is carried out by a shifting fork, and if power precision control is insufficient during shifting of the shifting fork, obvious jamming can occur, so that the whole vehicle body vibrates.
9. In the prior art speed change structure, a transmission chain needs to be frequently interfered during gear shifting, for example, meshing and disengaging between gears are realized, and impact and abrasion between the gears are increased.
10. In the speed change structure in the prior art, the driving gear and the driven gear are only in direct transmission, so that the fine control of the direction and the speed is not facilitated.
Disclosure of Invention
In order to overcome the above problems, the present invention proposes a solution to solve the above problems simultaneously.
The technical scheme adopted by the invention for solving the technical problem is as follows: a new energy automobile three-gear speed change structure comprises an output shaft, a friction clutch, a left fixed disk, a thrust bearing, a right fixed disk, a spring fixed plate, a second sleeve type planet carrier, a friction brake ring, a stepped ring, a reverse gear, an output gear, a rolling bearing, an intermediate gear, an input shaft, a second overrunning clutch, a second gear ring, a first sleeve type planet carrier, a first overrunning clutch, a first gear ring, a hollow friction ring, a gear ring brake plate, a buffer spring, a torsion spring, a planet carrier brake plate, a tension spring, a push plate, a gear shift lever, a gear ring, a planet wheel, a sun wheel, a sliding sleeve and a shifting plate;
the planetary gear train is formed by a plurality of planetary gears, the sun gear is arranged in the center of the planetary gear train, and the input shaft comprises a power input end and a tail end; the first overrunning clutch, the second overrunning clutch and the first sleeve type planet carrier are arranged in the axial direction of the input shaft and between the planetary gear train and the power input end, the second gear ring is arranged on the outer side of the second overrunning clutch, the first gear ring is arranged on the outer side of the first overrunning clutch, the first sleeve type planet carrier comprises a first sleeve part and a first support part, and the first support part is connected with the planetary gear;
the second sleeve type planet carrier, the friction brake ring, the spring fixing plate, the friction clutch, the left fixing disc, the thrust bearing, the right fixing disc, the tension spring, the push plate and the sliding sleeve are arranged between the planetary gear train and the tail end; the friction clutch, the left fixed disc, the thrust bearing and the right fixed disc are arranged between the push plate and the tail end; the friction clutch comprises a first disc and a second disc, the second disc is adjacent to the left fixed disc, and the second disc, the left fixed disc, the thrust bearing and the right fixed disc can move towards the first disc under the thrust action of the push plate; the second sleeve type planet carrier comprises a second sleeve part and a second support part, and the second support part is connected with the planet wheel; the friction brake ring is arranged on the outer side of the second sleeve part;
the stepped ring comprises an inner ring and an outer ring, the outer ring is arranged on the outer side of the planetary gear train, the gear ring is arranged on the inner side of the outer ring, the gear ring is in matched transmission with the planetary gears, the inner ring is connected with the outer ring through ribs, the inner ring is arranged on the outer side of the first sleeve part, and the surface of the outer ring, facing the tail end, is connected with the hollow friction ring; the intermediate gear is arranged between the second gear ring and the output gear; the second disc, the left fixed disc, the thrust bearing and the right fixed disc are sleeved outside the sliding sleeve;
the gear lever is arranged on one side of the input shaft, the output shaft is arranged on the other side of the input shaft, the reverse gear, the output gear and the rolling bearing are arranged on the output shaft, the reverse gear corresponds to the first gear ring in position, and the output gear corresponds to the second gear ring in position; the gear lever is provided with a gear ring brake plate, a buffer spring, a torsion spring and a planet carrier brake plate, the gear ring brake plate is correspondingly matched with the plane surface of the hollow friction ring, and the planet carrier brake plate is correspondingly matched with the friction brake ring; the push plate is connected with the gear lever, so that the motion of the gear lever can push the push plate to move, the gear lever is provided with a shifting rod, and the shifting plate can shift the shifting rod to move so as to push the gear lever to move.
Further, the overrunning clutch is a ball type one-way clutch.
Further, the rolling bearing is a deep groove ball bearing.
Further, the outer ring is connected with the hollow friction ring through a bolt.
Further, the inner ring and the outer ring are located at different positions in the axial direction of the input shaft.
Furthermore, the excircle of the inner ring is fixed with the inner ring of the first overrunning clutch.
Further, the sun gear is detachably connected with the input shaft.
Further, the number of the planet wheels is three.
Further, the first overrunning clutch is connected with the inner ring through a key slot.
Further, the second overrunning clutch is connected with the first sleeve part through a key groove.
The invention has the beneficial effects that:
1. aiming at the point 1 of the background technology, the defect that the new energy automobile in the prior art can only realize two-gear switching is overcome, and a forward gear and a backward gear are arranged on an output shaft to realize three-gear reversing.
2. Aiming at the 2 nd point of the background technology, the planet carriers are arranged on the two sides of the planet wheel system, the two sides can be driven, and the high-speed and low-speed switching is realized through the switching of the power mechanisms on the two sides.
3. In view of the 3 rd point of the background art, a friction clutch is provided at the end of the power input shaft, so that the friction clutch can be used as one of the starting positions of the end power to construct a double-sided power path.
4. Aiming at the 4 th point of the background technology, a gear lever is arranged to replace a traditional gear shifting mechanism, and a multi-position friction stop is realized through three brake plates and a push plate on the gear lever and a plurality of friction rings on a main shaft, so that a multi-gear switching function similar to clutch is realized.
5. Aiming at the 5 th point of the background technology, a sleeve planet carrier is constructed, so that the movement of a main shaft and the movement of the planet carrier are easily separated, and more flexible transmission is realized.
6. Aiming at the 6 th point of the background technology, the friction clutch is arranged at the tail end of the input shaft, the friction clutch is used as an initiation position of power on the other side of the input shaft, the structure of the combination side of the friction clutch is changed, a clutch moving module consisting of a second clutch plate, a fixed disc and a thrust bearing is constructed, the clutch moving module bears larger pressure and torque, and the direction position of the corresponding diaphragm spring structure is changed.
7. In view of the point 7 of the background art, the clutch operation and the gear shifting operation are integrated, so that the three-step operation can be completed only by one step, namely, all the clutch and gear shifting operations can be completed only by moving a gear shift lever.
8. To the 8 th point of the background art, the traditional shifting fork is changed into a friction structure between the annular plate and the arc-shaped plate, and the friction of the shifting fork is only a small part of the contact, so that the arc-shaped friction greatly increases the friction resistance in the rotating direction and the rotating path.
9. Aiming at the 9 th point of the background technology, two overrunning clutches which are reversely arranged are adopted, so that a transmission chain does not need to be frequently interfered during gear shifting, the impact and the abrasion between gears are reduced, and the service life of the gears is prolonged.
10. Aiming at the 10 th point of the background technology, an intermediate gear between a driving wheel and a driven wheel is added, so that the direction and the transmission precision are better controlled.
Note: the above designs are not sequential and each makes a distinct and significant advance of the present invention over the prior art.
Drawings
FIG. 1 is a top view of the present invention.
FIG. 2 is a cross-sectional view of the planetary gear train of the present invention in assembled relation with a first carrier.
Fig. 3 is a cross-sectional view of the stepped ring of the present invention and its associated parts.
FIG. 4 is a cross-sectional view of the overrunning clutch of the present invention and its associated components.
FIG. 5 is a cross-sectional view of a second planet carrier and associated parts of the invention.
FIG. 6 is a cross-sectional view of the sliding sleeve, bearing assembly and associated parts of the present invention.
FIG. 7 is a cross-sectional view of the driving member of the friction clutch and its associated parts of the present invention.
Fig. 8 is a perspective view of a second planet carrier according to the present invention.
Fig. 9 is a perspective view of the overrunning clutch of the present invention.
In the figures, the reference numerals are as follows:
the three-gear speed changing structure comprises a three-gear speed changing structure 1, an output shaft 2, a friction clutch 3, a left fixed disk 4, a thrust bearing 5, a right fixed disk 6, a guide rod 7, a spring fixing plate 8, a second sleeve type planet carrier 9, a friction brake ring 10, a stepped ring 11, a reverse gear 12, an output gear 13, a rolling bearing 14, an intermediate gear 15, an input shaft 16, a second overrunning clutch 17, a second gear ring 18, a first sleeve type planet carrier 19, a first overrunning clutch 20, a first gear ring 21, a hollow friction ring 22, a gear ring brake plate 23, a shifting plate 24, a buffer spring 25, a torsion spring 26, a planet carrier brake plate 27, a tension spring 28, a push plate 29, a support plate 30, a gear shift lever 31, a gear ring 32, a planet wheel 33, a sun wheel 34, a sliding sleeve 35 and a sleeve 36.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in the figure: a new energy automobile three-gear speed change structure comprises an output shaft, a friction clutch, a left fixed disk, a thrust bearing, a right fixed disk, a spring fixed plate, a second sleeve type planet carrier, a friction brake ring, a stepped ring, a reverse gear, an output gear, a rolling bearing, an intermediate gear, an input shaft, a second overrunning clutch, a second gear ring, a first sleeve type planet carrier, a first overrunning clutch, a first gear ring, a hollow friction ring, a gear ring brake plate, a buffer spring, a torsion spring, a planet carrier brake plate, a tension spring, a push plate, a gear shift lever, a gear ring, a planet wheel, a sun wheel, a sliding sleeve and a shifting plate;
the planetary gear train is formed by a plurality of planetary gears, the sun gear is arranged in the center of the planetary gear train, and the input shaft comprises a power input end and a tail end; the first overrunning clutch, the second overrunning clutch and the first sleeve type planet carrier are arranged in the axial direction of the input shaft and between the planetary gear train and the power input end, the second gear ring is arranged on the outer side of the second overrunning clutch, the first gear ring is arranged on the outer side of the first overrunning clutch, the first sleeve type planet carrier comprises a first sleeve part and a first support part, and the first support part is connected with the planetary gear;
as shown in the figure: the second sleeve type planet carrier, the friction brake ring, the spring fixing plate, the friction clutch, the left fixing disc, the thrust bearing, the right fixing disc, the tension spring, the push plate and the sliding sleeve are arranged between the planetary gear train and the tail end; the friction clutch, the left fixed disc, the thrust bearing and the right fixed disc are arranged between the push plate and the tail end; the friction clutch comprises a first disc and a second disc, the second disc is adjacent to the left fixed disc, and the second disc, the left fixed disc, the thrust bearing and the right fixed disc can move towards the first disc under the thrust action of the push plate; the second sleeve type planet carrier comprises a second sleeve part and a second support part, and the second support part is connected with the planet wheel; the friction brake ring is arranged on the outer side of the second sleeve part;
the stepped ring comprises an inner ring and an outer ring, the outer ring is arranged on the outer side of the planetary gear train, the gear ring is arranged on the inner side of the outer ring, the gear ring is in matched transmission with the planetary gears, the inner ring is connected with the outer ring through ribs, the inner ring is arranged on the outer side of the first sleeve part, and the surface of the outer ring, facing the tail end, is connected with the hollow friction ring; the intermediate gear is arranged between the second gear ring and the output gear; the second disc, the left fixed disc, the thrust bearing and the right fixed disc are sleeved outside the sliding sleeve;
as shown in the figure: the gear lever is arranged on one side of the input shaft, the output shaft is arranged on the other side of the input shaft, the reverse gear, the output gear and the rolling bearing are arranged on the output shaft, the reverse gear corresponds to the first gear ring in position, and the output gear corresponds to the second gear ring in position; the gear lever is provided with a gear ring brake plate, a buffer spring, a torsion spring and a planet carrier brake plate, the gear ring brake plate is correspondingly matched with the plane surface of the hollow friction ring, and the planet carrier brake plate is correspondingly matched with the friction brake ring; the push plate is connected with the gear lever, so that the motion of the gear lever can push the push plate to move, the gear lever is provided with a shifting rod, and the shifting plate can shift the shifting rod to move so as to push the gear lever to move.
The overrunning clutch is a ball type one-way clutch. The rolling bearing is a deep groove ball bearing. The outer ring is connected with the hollow friction ring through a bolt. The inner ring and the outer ring are located at different positions in the axial direction of the input shaft. And the excircle of the inner ring is fixed with the inner ring of the first overrunning clutch. The sun gear is detachably connected with the input shaft. The number of the planet wheels is three. The first overrunning clutch is connected with the inner ring through a key groove. The second overrunning clutch is connected with the first sleeve part through a key groove. The first overrunning clutch mounting direction is only effective in reverse gear transmission; the second overrunning clutch installation direction is active only during forward low and forward high transmissions.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A new energy automobile three-gear speed change structure is characterized by comprising an output shaft, a friction clutch, a left fixed disk, a thrust bearing, a right fixed disk, a spring fixed plate, a second sleeve type planet carrier, a friction brake ring, a stepped ring, a reverse gear, an output gear, a rolling bearing, an intermediate gear, an input shaft, a second overrunning clutch, a second gear ring, a first sleeve type planet carrier, a first overrunning clutch, a first gear ring, a hollow friction ring, a gear ring brake plate, a buffer spring, a torsion spring, a planet carrier brake plate, a tension spring, a push plate, a gear shift lever, an inner gear ring, a planet gear, a sun gear, a sliding sleeve and a shifting plate;
the planetary gear train is formed by a plurality of planetary gears, the sun gear is arranged in the center of the planetary gear train, and the input shaft comprises a power input end and a tail end; the first overrunning clutch, the second overrunning clutch and the first sleeve type planet carrier are arranged in the axial direction of the input shaft and between the planetary gear train and the power input end, the second gear ring is arranged on the outer side of the second overrunning clutch, the first gear ring is arranged on the outer side of the first overrunning clutch, the first sleeve type planet carrier comprises a first sleeve part and a first support part, and the first support part is connected with the planetary gear;
the second sleeve type planet carrier, the friction brake ring, the spring fixing plate, the friction clutch, the left fixing disc, the thrust bearing, the right fixing disc, the tension spring, the push plate and the sliding sleeve are arranged between the planetary gear train and the tail end; the friction clutch, the left fixed disc, the thrust bearing and the right fixed disc are arranged between the push plate and the tail end; the friction clutch comprises a first disc and a second disc, the second disc is adjacent to the left fixed disc, and the second disc, the left fixed disc, the thrust bearing and the right fixed disc can move towards the first disc under the thrust action of the push plate; the second sleeve type planet carrier comprises a second sleeve part and a second support part, and the second support part is connected with the planet wheel; the friction brake ring is arranged on the outer side of the second sleeve part;
the stepped ring comprises an inner ring and an outer ring, the outer ring is arranged on the outer side of the planetary gear train, the inner side of the outer ring is provided with the inner gear ring, the inner gear ring is in matched transmission with the planetary gears, the inner ring is connected with the outer ring through ribs, the inner ring is arranged on the outer side of the first sleeve part, and the surface of the outer ring facing the tail end is connected with the hollow friction ring; the intermediate gear is arranged between the second gear ring and the output gear; the second disc, the left fixed disc, the thrust bearing and the right fixed disc are sleeved outside the sliding sleeve;
the gear lever is arranged on one side of the input shaft, the output shaft is arranged on the other side of the input shaft, the reverse gear, the output gear and the rolling bearing are arranged on the output shaft, the reverse gear corresponds to the first gear ring in position, and the output gear corresponds to the second gear ring in position; the gear lever is provided with a gear ring brake plate, a buffer spring, a torsion spring and a planet carrier brake plate, the gear ring brake plate is correspondingly matched with the plane surface of the hollow friction ring, and the planet carrier brake plate is correspondingly matched with the friction brake ring; the push plate is connected with the gear lever, so that the motion of the gear lever can push the push plate to move, the gear lever is provided with a shifting rod, and the shifting plate can shift the shifting rod to move so as to push the gear lever to move.
2. The new energy automobile three-gear speed change structure according to claim 1, characterized in that: the overrunning clutch is a ball type one-way clutch.
3. The new energy automobile three-gear speed change structure according to claim 1, characterized in that: the rolling bearing is a deep groove ball bearing.
4. The new energy automobile three-gear speed change structure according to claim 1, characterized in that: the outer ring is connected with the hollow friction ring through a bolt.
5. The new energy automobile three-gear speed change structure according to claim 1, characterized in that: the inner ring and the outer ring are located at different positions in the axial direction of the input shaft.
6. The new energy automobile three-gear speed change structure according to claim 5, characterized in that: and the excircle of the inner ring is fixed with the inner ring of the first overrunning clutch.
7. The new energy automobile three-gear speed change structure according to claim 1, characterized in that: the sun gear is detachably connected with the input shaft.
8. The new energy automobile three-gear speed change structure according to claim 1, characterized in that: the number of the planet wheels is three.
9. The new energy automobile three-gear speed change structure according to claim 1, characterized in that: the first overrunning clutch is connected with the inner ring through a key groove.
10. The new energy automobile three-gear speed change structure according to claim 1, characterized in that: the second overrunning clutch is connected with the first sleeve part through a key groove.
CN202110364829.XA 2021-04-06 2021-04-06 New energy automobile three-gear speed change structure Active CN113028003B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN202110364829.XA CN113028003B (en) 2021-04-06 2021-04-06 New energy automobile three-gear speed change structure

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CN113028003B true CN113028003B (en) 2022-06-03

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PL444125A1 (en) * 2023-03-17 2024-09-23 Filip Antończyk Three-speed gearbox

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US4899621A (en) * 1987-08-03 1990-02-13 Aisin-Warner Kabushiki Kaisha Automatic transmission for vehicles
CN108253039B (en) * 2018-02-06 2024-05-03 武汉易知鸟科技有限公司 Planetary gear overrunning clutch
CN110017369B (en) * 2019-04-17 2020-12-04 西南大学 Planetary gear train input double-overrunning clutch shaft sleeve output self-adaptive automatic transmission
CN109899410B (en) * 2019-04-23 2024-05-10 吉林博承传动系统科技有限公司 Double-gear planetary-gear-row type electric vehicle two-gear gearbox and gear shifting control method thereof
CN212744900U (en) * 2020-06-15 2021-03-19 重庆彤领机械配件进出口有限公司 Power integration forward and reverse rotation three-gear planet front-mounted throwing block AT transmission

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