CN103174808A - Stepless speed change device - Google Patents
Stepless speed change device Download PDFInfo
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- CN103174808A CN103174808A CN2013101001863A CN201310100186A CN103174808A CN 103174808 A CN103174808 A CN 103174808A CN 2013101001863 A CN2013101001863 A CN 2013101001863A CN 201310100186 A CN201310100186 A CN 201310100186A CN 103174808 A CN103174808 A CN 103174808A
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Abstract
本发明提供了一种无级变速装置，包括壳体、左半球轴、右半球轴、传动轴、传动轴支架、方位轴等；传动轴与左半球轴、右半球轴具有相同的轮廓曲线，使三者在运动过程中始终保持线接触，动力从左半球轴输入，在摩擦力作用下，传动轴绕自身转动，并带动右半球轴转动，从而实现动力输出；传动轴支架在方位转轴带动下，在空间随方位转轴转过一定角度，使传动轴左右端接触半径改变，从而实现传动比的改变，当方位转轴在空间连续转动时，就实现了传动比连续变化，在右半球轴输出端实现无级调速。本发明总体结构简单，制造方便，在较小的工作空间也可以安装，通过改变传动轴与左、右半球轴的压力和接触曲线的长度即可改变可传递功率的大小，满足不同的功率要求。
The invention provides a continuously variable transmission device, which includes a housing, a left hemispherical shaft, a right hemispherical shaft, a transmission shaft, a transmission shaft support, an azimuth shaft, etc.; the transmission shaft has the same contour curve as the left hemispherical shaft and the right hemispherical shaft, Keep the three in line contact all the time during the movement, the power is input from the left hemispherical shaft, and under the action of friction, the transmission shaft rotates around itself and drives the right hemispherical shaft to rotate, thereby realizing power output; the transmission shaft bracket is driven by the azimuth shaft In the space, the azimuth shaft rotates through a certain angle, so that the contact radius of the left and right ends of the transmission shaft changes, thereby realizing the change of the transmission ratio. When the azimuth shaft rotates continuously in space, the transmission ratio is continuously changed. Realize stepless speed regulation. The overall structure of the present invention is simple, easy to manufacture, and can also be installed in a small working space. By changing the pressure and the length of the contact curve between the transmission shaft and the left and right hemispherical shafts, the transferable power can be changed to meet different power requirements. .
Description
Technical field
The present invention relates to stepless speed changes devices, applicable to the various machinery that gear ratio is arranged.
Background technique
At present, known stepless speed changes devices has the devices such as hydraulic automatic speed variator, CVT, and hydraulic automatic speed variator is comprised of fluid torque converter, planetary pinion and hydraulic control system, and the mode by fluid power transmission and Gear combination reaches variable-speed torque-converting; CVT adopts the ratchet of driving belt and variable groove width to carry out transmission of power, and when ratchet changed groove width, the contact radius of corresponding change driving wheel and follower upper driving band carried out speed change.These two kinds of stepless speed changes devicess have all that weight is large, complex structure, manufacturing is consuming time, cost is expensive, the limited characteristics of moment of torsion transmitted, and in productive life, some machinery or device need some stepless speed changes devicess with low cost, easy to manufacture, that requirements of installation space is little are installed, and CVT and hydraulic automatic speed variator are inapplicable to above-mentioned situation.
Summary of the invention
The object of the present invention is to provide a kind of stepless speed changes devices, this device is applicable to require the machinery of stepless gear ratio.
The present invention adopts following technological scheme:
Stepless speed changes devices of the present invention is comprised of housing, cap, left hemisphere axle, right half ball journal, transmission shaft, direction rotating shaft, drive axle support, flat key, bearing wheel flange, rubber pad, bearing cap and bearing.
The left hemisphere axle of described stepless speed changes devices and right half ball journal are arranged on housing, left hemisphere axle input power, the left hemisphere axle drives the transmission shaft rotation, transmission shaft drives right half ball journal again and rotates outputting power, change the angle of transmission shaft in the space by direction rotating shaft, realize the change of velocity ratio, when direction rotating shaft rotates continuously in the space, just realized the stepless change of this device.
Described stepless speed changes devices, the hollow spheres of left hemisphere axle and right half ball journal has identical radius, and its sphere center position overlaps.
Described stepless speed changes devices, its direction rotating shaft center line is by the centre of sphere of left and right half ball journal, and drive axle support is fixed on direction rotating shaft, and transmission shaft is fixed on drive axle support, and the rotation of direction rotating shaft turns over several angle with transmission shaft.
Described stepless speed changes devices, the hollow spheres profilogram of its end part of driving shaft profilogram and left hemisphere axle and right half ball journal coincide, and in movement process, transmission shaft remains that with the hollow spheres of left and right half ball journal line contacts; Between its bearing outer ring and bearing cap, rubber pad is installed, by the pretightening force adjusting transmission shaft of adjusting rubber pad and the pressure between left and right hemisphere shaft hollow ball.
The beneficial effect of described stepless speed changes devices is: general structure is simple, and is easily manufactured, also can install at less working space, changes transmission shaft and namely satisfies different power requirementss from the pressure of half ball journal and the length of inter_curve.
Description of drawings
Fig. 1 is the sectional elevation view of the stepless speed changes devices of one embodiment of the present invention.
Fig. 2 means the plan view of the above-mentioned mode of execution of the present invention.
The drawing reference numeral explanation
1, housing, 2, cap, 3, the left hemisphere axle, 4, right half ball journal, 5, transmission shaft, 6, direction rotating shaft, 7, drive axle support, 8, flat key, 9, the bearing wheel flange, 10, rubber pad, 11, bearing cap, 12, bearing
Embodiment
Below, based on description of drawings one embodiment of the present invention.
Fig. 1 is the sectional elevation view that shows the stepless speed changes devices of one embodiment of the present invention.
As shown in Figure 1, a kind of stepless speed changes devices comprises housing 1, cap 2, left hemisphere axle 3, right half ball journal 4, transmission shaft 5, direction rotating shaft 6, drive axle support 7, flat key 8, bearing wheel flange 9, rubber pad 10, bearing cap 11, bearing 12, fixed block 13.
As Fig. 1, shown in Figure 2, left hemisphere axle 3 directly is connected with bearing 12, bearing 12 is arranged between housing 1 and fixed block 13, bearing 12 outsides are equipped with rubber pad 10 and bearing cap 11, regulate by the fixing bolt of bearing cap 11 pretightening force that rubber pad 10 produces, produce thereby make the pressure that needs between left hemisphere axle 3 and transmission shaft 5, guarantee both close contacts in movement process; Placement and left hemisphere axle 3 between right half ball journal 4 and housing 1 and fixed block 13 are similar; Direction rotating shaft 6 is arranged on housing 1, and drive axle support 7 is fixed on direction rotating shaft 6 by flat key 8, and transmission shaft 5 is supported on bearing 14, and bearing 14 is fixed on drive axle support 7 by bearing wheel flange 9; Cap 2 is bolted on housing 1.
During at horizontal position, right half ball journal 4 is consistent with left hemisphere axle 3 rotational velocity when transmission shaft 5, and velocity ratio is 1; When transmission shaft 5 rotated counterclockwise several angle with direction rotating shaft 6, the contact radius of left hemisphere axle 3 and transmission shaft 5 was greater than the contact radius of the right side half ball journal 4 with transmission shaft 5, and right half ball journal 4 rotational velocity are high, and velocity ratio is less than 1; When transmission shaft 5 clockwise rotated several angle with direction rotating shaft 6, the contact radius of left hemisphere axle 3 and transmission shaft 5 was less than the contact radius of the right side half ball journal 4 with transmission shaft 5, and right half ball journal 4 rotational velocity are low, and velocity ratio is greater than 1.
The distortion of mode of execution in addition, the present invention is not limited to above-mentioned mode of execution, all details distortion that can realize function of the present invention, improves and also is contained in the present invention.
For example; transmission shaft 5 is by bearing 14, drive axle support 7, bearing wheel flange 9; fit together with direction rotating shaft 6 and rotate; also can will form a whole after drive axle support 7, bearing wheel flange 9 and bearing 14 welding; transmission shaft 5 is rear with direction rotating shaft 6 rotations with this welding body assembling, and foregoing also is suitable for scope of patent protection of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101001863A CN103174808A (en) | 2013-03-13 | 2013-03-13 | Stepless speed change device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101001863A CN103174808A (en) | 2013-03-13 | 2013-03-13 | Stepless speed change device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103174808A true CN103174808A (en) | 2013-06-26 |
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ID=48634873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101001863A Pending CN103174808A (en) | 2013-03-13 | 2013-03-13 | Stepless speed change device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103174808A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114576A (en) * | 2015-09-18 | 2015-12-02 | 湖南农业大学 | Dual-spherical disc type stepless transmission |
| CN105508533A (en) * | 2016-01-18 | 2016-04-20 | 侯亚峰 | Shell running device of continuously variable transmission |
| CN106969119A (en) * | 2017-05-15 | 2017-07-21 | 常州工程职业技术学院 | A kind of mechanical CVT speed changers transmission mechanism |
| CN111102233A (en) * | 2020-01-07 | 2020-05-05 | 北京中科科仪股份有限公司 | Bearing mounting structure and heat-conducting grease filling method |
| CN112253735A (en) * | 2020-10-21 | 2021-01-22 | 山东大学 | Transmission method and device for continuous adjustment of continuously variable output torque |
| CN113167363A (en) * | 2018-10-09 | 2021-07-23 | 埃尔塔特有限公司 | Continuously variable transmission |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR922847A (en) * | 1946-01-09 | 1947-06-19 | Moteurs Renee Soc D | Improvements to variable speed drives |
| GB1012677A (en) * | 1961-08-21 | 1965-12-08 | Excelermatic | Variable speed power transmission devices |
| DE2457060A1 (en) * | 1974-12-03 | 1976-07-15 | Titt Geb Gundel Lore | Infinitely variable friction gearing - has drive members with confronting hemispherical recesses engaged by friction wheels |
| JPH05231504A (en) * | 1992-02-21 | 1993-09-07 | Iseki & Co Ltd | Speed change gear |
| WO2005064204A1 (en) * | 2003-12-22 | 2005-07-14 | Huettlin Herbert | Variable gearbox |
| CN201096184Y (en) * | 2007-09-08 | 2008-08-06 | 辽宁曙光汽车集团股份有限公司 | Main reducing gear assembly automobile drive bridge assembly for establishing bearing pretightening |
-
2013
- 2013-03-13 CN CN2013101001863A patent/CN103174808A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR922847A (en) * | 1946-01-09 | 1947-06-19 | Moteurs Renee Soc D | Improvements to variable speed drives |
| GB1012677A (en) * | 1961-08-21 | 1965-12-08 | Excelermatic | Variable speed power transmission devices |
| DE2457060A1 (en) * | 1974-12-03 | 1976-07-15 | Titt Geb Gundel Lore | Infinitely variable friction gearing - has drive members with confronting hemispherical recesses engaged by friction wheels |
| JPH05231504A (en) * | 1992-02-21 | 1993-09-07 | Iseki & Co Ltd | Speed change gear |
| WO2005064204A1 (en) * | 2003-12-22 | 2005-07-14 | Huettlin Herbert | Variable gearbox |
| CN201096184Y (en) * | 2007-09-08 | 2008-08-06 | 辽宁曙光汽车集团股份有限公司 | Main reducing gear assembly automobile drive bridge assembly for establishing bearing pretightening |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114576A (en) * | 2015-09-18 | 2015-12-02 | 湖南农业大学 | Dual-spherical disc type stepless transmission |
| CN105114576B (en) * | 2015-09-18 | 2017-06-23 | 湖南农业大学 | Double sphere disc type bunchers |
| CN105508533A (en) * | 2016-01-18 | 2016-04-20 | 侯亚峰 | Shell running device of continuously variable transmission |
| CN106969119A (en) * | 2017-05-15 | 2017-07-21 | 常州工程职业技术学院 | A kind of mechanical CVT speed changers transmission mechanism |
| CN106969119B (en) * | 2017-05-15 | 2024-02-09 | 常州工程职业技术学院 | Speed-changing transmission mechanism of mechanical CVT (continuously variable Transmission) |
| CN113167363A (en) * | 2018-10-09 | 2021-07-23 | 埃尔塔特有限公司 | Continuously variable transmission |
| CN113167363B (en) * | 2018-10-09 | 2024-09-10 | 埃尔塔特有限公司 | Continuously variable transmission |
| CN111102233A (en) * | 2020-01-07 | 2020-05-05 | 北京中科科仪股份有限公司 | Bearing mounting structure and heat-conducting grease filling method |
| CN112253735A (en) * | 2020-10-21 | 2021-01-22 | 山东大学 | Transmission method and device for continuous adjustment of continuously variable output torque |
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Application publication date: 20130626 |