CN108194595B - Continuously variable transmission - Google Patents
Continuously variable transmission Download PDFInfo
- Publication number
- CN108194595B CN108194595B CN201810077328.1A CN201810077328A CN108194595B CN 108194595 B CN108194595 B CN 108194595B CN 201810077328 A CN201810077328 A CN 201810077328A CN 108194595 B CN108194595 B CN 108194595B
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- CN
- China
- Prior art keywords
- shaft
- disc
- rotating member
- driven
- driving disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Classifications
-
- 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
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M13/00—Transmissions characterised by use of friction rollers engaging the periphery of the ground wheel
- B62M13/02—Transmissions characterised by use of friction rollers engaging the periphery of the ground wheel with changeable ratio, e.g. with roller of varying diameter
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Friction Gearing (AREA)
Abstract
本发明涉及变速器领域，具体涉及了一种无级变速传动装置，包括第一轴、第二轴和变速机构，变速机构包括相对设置的主动盘和从动盘以及同轴连接于第二轴端部的回转件，主动盘固定地套设于第一轴，从动盘转动地套设于第一轴，回转件设于主动盘和从动盘之间，且回转件的外侧壁抵接在主动盘的盘面和从动盘的盘面上，通过回转件与第一轴轴线的距离变化来改变该装置的变速比。
The present invention relates to the field of transmissions, and in particular to a continuously variable transmission device, comprising a first shaft, a second shaft and a speed change mechanism, wherein the speed change mechanism comprises a driving disc and a driven disc arranged opposite to each other and a rotating member coaxially connected to the end of the second shaft, wherein the driving disc is fixedly sleeved on the first shaft, the driven disc is rotatably sleeved on the first shaft, the rotating member is arranged between the driving disc and the driven disc, and the outer side wall of the rotating member abuts against the disc surface of the driving disc and the disc surface of the driven disc, and the speed ratio of the device is changed by changing the distance between the rotating member and the axis of the first shaft.
Description
Technical Field
The invention relates to the field of speed variators, in particular to a continuously variable transmission device.
Background
Most of the existing speed variators are gear speed variators, and the speed variators are generally used together with clutches or hydraulic torque converters, are relatively complex in structure, poor in gear shifting continuity and have a feel of a pause in gear shifting. The emerging belt type continuously variable transmission can continuously change speed and change torque, but a transmission belt is used as a core mechanism of the belt type continuously variable transmission and is a vulnerable part, a steel transmission belt is easy to be severely worn with a steel belt wheel, and a rubber transmission belt is easy to age and crack.
Disclosure of Invention
In order to solve the above-described problems, an object of the present invention is to provide a continuously variable transmission device in which a gear ratio is changed by a change in a distance of a rotary member from a first shaft axis.
Based on the above, the invention provides a stepless speed change transmission device, which comprises a first shaft, a second shaft and a speed change mechanism, wherein the speed change mechanism comprises a driving disc, a driven disc and a rotating member coaxially connected with the end part of the second shaft, the driving disc is fixedly sleeved on the first shaft, the driven disc is rotatably sleeved on the first shaft, the rotating member is arranged between the driving disc and the driven disc, and the outer side wall of the rotating member is abutted against the disc surface of the driving disc and the disc surface of the driven disc.
Preferably, the device further comprises a housing, wherein the first shaft, the second shaft and the speed change mechanism are all arranged in the housing, and the first shaft and the second shaft are respectively connected with the housing in a rotating way.
Preferably, the driven plate is provided with first gear teeth, the driving plate is provided with second gear teeth, the shell is rotationally provided with a transmission gear, and the transmission gear is respectively meshed with the first gear teeth and the second gear teeth.
Preferably, the driving disc comprises a first driving disc and a second driving disc, and the first driving disc and the second driving disc are respectively arranged at two sides of the driven disc; the rotary member is arranged between the first driving disc and the driven disc, and the second driving disc is provided with second gear teeth.
Preferably, the rotary member is sleeved with a rubber ring, a first limiting portion and a second limiting portion, and the rubber ring is located between the first limiting portion and the second limiting portion, wherein the first limiting portion can adjust the distance between the first limiting portion and the second limiting portion.
Preferably, the device further comprises an elastic piece, one end of the elastic piece is rotatably connected with the second shaft, and the other end of the elastic piece is connected with the shell.
Preferably, the rotary member is provided with a thread, and the first limiting portion is sleeved on the rotary member through the thread matching.
In order to solve the same technical problems, the invention also provides a bicycle comprising the stepless speed change transmission device.
The first shaft of the stepless speed change transmission device is sleeved with a driving disc and a driven disc which are oppositely arranged, the driving disc is fixedly connected with the first shaft, the driven disc is rotationally connected with the first shaft, a rotary member is arranged at the end part of the second shaft, the rotary member is arranged between the driving disc and the driven disc, and when the first shaft drives the driving disc to rotate, the driving disc and the driven disc rotate relatively, and the rotary member rotates under the drive of the driving disc; because of the non-uniform rotational linear speeds at different radii of the drive disk, adjusting the distance of the rotating member from the first shaft changes the gear ratio of the device.
Drawings
FIG. 1 is one of the structural schematic diagrams of a continuously variable transmission according to an embodiment of the present invention;
FIG. 2 is a second schematic structural view of a continuously variable transmission according to an embodiment of the present invention;
fig. 3 is a third schematic structural view of the continuously variable transmission device according to the embodiment of the present invention.
Wherein, 1, a first shaft; 2. a second shaft; 21. a rotating member; 21a, a rubber ring; 21b, a first limiting part; 21c, a second limiting part; 3. a driving disk; 31. a second gear tooth; 32. a first active disk; 33. a second active disk; 4. a driven plate; 41. a first gear tooth; 5. a housing; 51. a transmission gear; 6. an elastic member.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Referring to fig. 1, there is schematically shown a continuously variable transmission device of the present invention, which comprises a first shaft 1, a second shaft 2, and a speed change mechanism, wherein the speed change mechanism comprises a driving disc 3 and a driven disc 4 which are disposed opposite to each other, and a rotary member 21 coaxially connected to the end of the second shaft 2, the driving disc 3 is fixedly sleeved on the first shaft 1, and the driven disc 4 is rotatably sleeved on the first shaft 1; the rotary member 21 is provided between the driving disk 3 and the driven disk 4, and the outer side wall of the rotary member 21 abuts against the disk surface of the driving disk 3 and the disk surface of the driven disk 4. When the first shaft 1 rotates, the driving disc 3 rotates along with the first shaft 1, and the driven disc 4 does not rotate along with the first shaft 1, so that the driving disc 3 and the driven disc 4 rotate relatively, at this time, the rotary member 21 is clamped in the center by the driving disc 3 and the driven disc 4, and the rotation of the driving disc 3 forces the rotary member 21 to roll between the driving disc 3 and the driven disc 4, thereby driving the second shaft 2 to rotate. The gear ratio of the device can be steplessly adjusted by changing the distance of the rotating member 21 from the axis of the first shaft 1 due to the non-uniform rotational linear speeds at different radii of the driving disc 3 or the driven disc 4.
The device also comprises a shell 5, wherein the first shaft 1, the second shaft 2 and the speed change mechanism are arranged in the shell 5, and the first shaft 1 and the second shaft 2 are respectively connected with the shell 5 in a rotating way.
As shown in fig. 2 and 3, the driven plate 4 is provided with a first gear tooth 41, the driving plate 3 is provided with a second gear tooth 31, the housing 5 is rotatably provided with a transmission gear 51, and the transmission gear 51 is respectively meshed with the first gear tooth 41 and the second gear tooth 31. Specifically, in the present embodiment, the driving disc 3 includes a first driving disc 32 and a second driving disc 33, the first driving disc 32 and the second driving disc 33 are respectively disposed on two sides of the driven disc 4, the rotating member 21 is disposed between the first driving disc 32 and the driven disc 4, and the second driving disc 33 is provided with the second gear teeth 31. When the first shaft 1 rotates, the first driving disk 32 and the second driving disk 33 simultaneously rotate following the first shaft 1, and the second driving disk 33 transmits power to the driven disk 4 through the transmission gear 51, so that the rotation speed of the driven disk 4 and the rotation speed of the driving disk 3 are equal but the rotation directions are opposite. This arrangement allows the driven disc 4 to obtain power from the driving disc 3, and the driving disc 3 and the driven disc 4 simultaneously drive the rotating member 21 to roll, which is more suitable for heavy-load machines, and the scheme of driving the rotating member 21 to roll by the driving disc 3 is suitable for light-load machines.
The rotary member 21 is sleeved with a rubber ring 21a, a first limiting part 21b and a second limiting part 21c, wherein the rubber ring 21a is positioned between the first limiting part 21b and the second limiting part 21c, and the first limiting part 21b can adjust the distance between the first limiting part 21b and the second limiting part 21 c; if the distance between the first limiting part 21b and the second limiting part 21c is reduced, the first limiting part 21b and the second limiting part 21c jointly squeeze the rubber ring 21a, so that the diameter of the rubber ring 21a is increased, and the friction force between the rotating member 21 and the driving disc 3 and the driven disc 4 is increased; so as not to wear out during long-term use of the rotating member 21, resulting in insufficient friction of the rotating member 21 with the driving disk 3 and the driven disk 4. Preferably, the rotating member 21 is provided with a thread, the first limiting portion 21b is sleeved on the rotating member 21 through a threaded fit, and the distance between the first limiting portion 21b and the second limiting portion 21c can be adjusted by manually twisting the first limiting portion 21 b.
In order to facilitate the reset of the gear shifting state of the device, the second shaft 2 is further provided with an elastic piece 6, one end of the elastic piece 6 is rotatably connected with the second shaft 2, the other end of the elastic piece 6 is connected with the shell 5, the second shaft 2 can be pushed to move along the length direction only through a cable or a shifting lever mechanism connected with the second shaft 2 when the gear shifting is needed, and when the cable or the shifting lever stops applying force to the second shaft 2, the elastic piece 6 can reset the second shaft 2 to an initial position.
In order to solve the same technical problems, the invention also provides a bicycle which comprises the stepless speed change transmission device.
In summary, the first shaft 1 of the continuously variable transmission device of the present invention is sleeved with the driving disc 3 and the driven disc 4 which are oppositely arranged, the driving disc 3 is fixedly connected to the first shaft 1, the driven disc 4 is rotationally connected to the first shaft 1, the end of the second shaft 2 is provided with the rotating member 21, the rotating member 21 is disposed between the driving disc 3 and the driven disc 4, and when the first shaft 1 drives the driving disc 3 to rotate, the driving disc 3 and the driven disc 4 rotate relative to each other under the driving of the driving disc 3; because of the non-uniform rotational linear speeds at different radii of the driving disk 3, adjusting the distance of the rotating member 21 from the first shaft 1 changes the gear ratio of the device.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810077328.1A CN108194595B (en) | 2018-01-25 | 2018-01-25 | Continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810077328.1A CN108194595B (en) | 2018-01-25 | 2018-01-25 | Continuously variable transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108194595A CN108194595A (en) | 2018-06-22 |
| CN108194595B true CN108194595B (en) | 2024-11-15 |
Family
ID=62591339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810077328.1A Active CN108194595B (en) | 2018-01-25 | 2018-01-25 | Continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108194595B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2138214Y (en) * | 1992-07-15 | 1993-07-14 | 李国升 | Circular plate type stepless speed regulator |
| JPH09229156A (en) * | 1996-01-20 | 1997-09-02 | Minoru Nakagawa | Regular/reverse changeover type continuously variable transmission of power roller slide type |
| CN208364719U (en) * | 2018-01-25 | 2019-01-11 | 倍能科技（广州）有限公司 | Infinitely variable speed transmission and bicycle |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100884971B1 (en) * | 2001-04-26 | 2009-02-23 | 모션 테크놀로지즈 엘엘씨 | Continuously variable transmission |
| EP2060829B1 (en) * | 2006-09-08 | 2013-01-16 | Mikuni Corporation | Continuously variable transmission |
| KR20110038845A (en) * | 2009-10-09 | 2011-04-15 | 김종완 | Transmission method, continuously variable transmission and continuously variable module |
| JP5424041B2 (en) * | 2009-12-25 | 2014-02-26 | 日本精工株式会社 | Continuously variable transmission |
| CN201851613U (en) * | 2010-11-19 | 2011-06-01 | 高建中 | Parallel disk type friction wheel continuously variable transmission |
| DE102013208044B4 (en) * | 2012-05-09 | 2019-01-31 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Transmission with toroidal traction drive |
| GB201410192D0 (en) * | 2014-06-06 | 2014-07-23 | Macmanaman David E | A veriable transmission for a vehicle |
| GB201618418D0 (en) * | 2016-11-01 | 2016-12-14 | Transfiniti Ltd | Transmissions |
-
2018
- 2018-01-25 CN CN201810077328.1A patent/CN108194595B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2138214Y (en) * | 1992-07-15 | 1993-07-14 | 李国升 | Circular plate type stepless speed regulator |
| JPH09229156A (en) * | 1996-01-20 | 1997-09-02 | Minoru Nakagawa | Regular/reverse changeover type continuously variable transmission of power roller slide type |
| CN208364719U (en) * | 2018-01-25 | 2019-01-11 | 倍能科技（广州）有限公司 | Infinitely variable speed transmission and bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108194595A (en) | 2018-06-22 |
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| SE01 | Entry into force of request for substantive examination | ||
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Address after: 510000 Room 303, Building A, No. 1 Nanxiang Branch Road, Huangpu District, Guangzhou City, Guangdong Province (office only) Applicant after: BEINENG TECHNOLOGY (GUANGZHOU) Co.,Ltd. Address before: 510000 Haizhu District, Guangzhou City, Guangdong Province, northwest side of the first floor of No. 1-3, No. 640 Tongfudong Road Applicant before: BEINENG TECHNOLOGY (GUANGZHOU) Co.,Ltd. |
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