CN1070593C - Stepless governor - Google Patents
Stepless governor Download PDFInfo
- Publication number
- CN1070593C CN1070593C CN97102129A CN97102129A CN1070593C CN 1070593 C CN1070593 C CN 1070593C CN 97102129 A CN97102129 A CN 97102129A CN 97102129 A CN97102129 A CN 97102129A CN 1070593 C CN1070593 C CN 1070593C
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- CN
- China
- Prior art keywords
- planet wheel
- input shaft
- sleeve
- shaft
- regulating device
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- Expired - Fee Related
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Abstract
The present invention provides a stepless speed regulating device which comprises an input shaft, an output shaft, a sliding block, a push member, a planet wheel, a transmission mechanism, two sleeve cylinders, a regulating mechanism and a casing body, wherein the sliding block is assembled in a sliding slot in the other end of the input shaft and can slide in the sliding slot; the push member is assembled in the sliding slot and causes the sliding block to radially move along the input shaft; a central shaft of the planet wheel is arranged in the sliding block; the transmission mechanism is respectively connected to the central shaft of the planet wheel and the output shaft; the two sleeve cylinders are coaxial with the input shaft and have the conical faces; the conical faces of the sleeve cylinders are in contact with the two external circumference of the planet wheel; the conical faces of the sleeve cylinders are close or far away along a shaft direction by the regulating mechanism; the casing body accommodates the sleeve cylinders.
Description
The present invention relates to a kind of stepless speed-regulating device, more particularly relate to a kind of mechanical stepless arrangements for speed regulation.
Traditional mechanical stepless arrangements for speed regulation are made up of driving component, pressurizing mechanism and speed regulating mechanism three parts.Pressurizing mechanism pressurizes to driving component, utilizes the friction between the driving component to come transferring rotational motion, and speed regulating mechanism then can be regulated length (angle) proportionate relationship between the driving component, thereby reaches infinite variable speed purpose.Common having by the contact radius that changes cone pulley (driving component) realizes stepless change.But, the slewing range of prior mechanical stepless speed-regulating device is still big inadequately, particularly can not make gear ratio reach infinitely great, that is to say that the speed that can not make output is zero, therefore when being applied to the occasion of vehicle and so on, also need extra clutch could allow the output speed be zero.
In order to overcome above-mentioned defective, the object of the present invention is to provide the stepless speed-regulating device that a kind of structure and simple to operate, speed adjustable range are wide, need not clutch.
To achieve these goals, stepless speed-regulating device of the present invention comprises that an one end is connected in the input shaft and an output shaft coaxial with described input shaft of dynamic power machine, be characterized in that it also comprises: slide block in the chute that is assemblied on the input shaft the other end and that can in chute, slide; One be assemblied in the described chute, make the driving member that move radially of described slide block along input shaft; One planet wheel, its central shaft is installed in the slide block; One is connected to axle and output shaft drive among the planet wheel; Two coaxial and have the sleeve of the conical surface with input shaft, and the conical surface part of described sleeve contacts with two outer periphery of planet wheel; One make the conical surface of sleeve draw close vertically or away from controlling mechanism; And the housing of a tolerance sleeve.
The further characteristics of aforementioned stepless speed-regulating device are as follows:
Described driving member is one to be assemblied in the belleville spring between described slide block one side and the chute bottom.
Described controlling mechanism is a screw rod and two nuts that match of spiral with it, and described nut is engaged on two surfaces relative with the conical surface of sleeve after passing housing.
Described transmission device is a constant angular velocity transmission shaft.
The ratio of the radius of described planet wheel and the throw of eccentric of planet wheel is 4: 1.
What stepless speed-regulating device of the present invention adopted is the principle of friction driving, and only the relative distance between the conical surface of need control two sleeves just can be controlled the gear ratio of stepless speed regulation easily, is particularly suitable for running mechanisms such as automobile, motorcycle.The outstanding advantage of this stepless speed-regulating device is that the scope of stepless speed regulation is wide, and therefore the ratio of input speed and output speed can no longer need clutch from about the infinity to 2 when being used for vehicle.
By more clearly understanding structural feature of the present invention and purpose to the description of preferred embodiment of the present invention below in conjunction with accompanying drawing.
Fig. 1 is the generalized section according to the stepless speed-regulating device of a preferred embodiment of the present invention;
Fig. 2 cuts open the sectional view of getting along the line A-A among Fig. 1;
See also Fig. 1, the stepless speed-regulating device of a preferred embodiment of the present invention comprises: an one end is connected in the input shaft 1 and an output shaft 7 coaxial with input shaft of dynamic power machine; In one chute 11 that is assemblied on input shaft 1 the other end and the slide block 3 that can in chute, slide; One be assemblied between side of slide block 3 and chute 11 bottoms, make the spring that move radially 4 of slide block 3 along input shaft 1; One central shaft 22 is installed in the planet wheel 2 in the slide block 3; One is connected in the constant angular velocity transmission shaft 6 of axle 22 and output shaft 7 among the planet wheel 2; Two all with described input shaft coaxial line be oppositely arranged and have the sleeve 5 of the conical surface, the conical surface part of this sleeve contacts with two outer periphery of planet wheel respectively; Make the conical surface of sleeve draw close vertically or away from two nuts 8 and the screw rod 9 that matches with this two nut; An and housing 10 that is holding sleeve 5.
The structure and the working principle of stepless speed-regulating device of the present invention are described further below in conjunction with Fig. 1 and Fig. 2.
One end of output shaft 1 is connected in a dynamic power machine (not shown), has chute 11 on its other end, the sliding slide block 3 with endoporus of having joined in this chute.Between one side of slide block 3 and the chute bottom spring 4 is housed, in the present embodiment, what spring 4 adopted is the pattern of belleville spring.The central shaft 22 of planet wheel 2 is fixedly connected on planet wheel by the flange vertical with axial direction 23, and this central shaft is installed in the endoporus of slide block 3.Because slide block 3 always has the trend that moves radially along input shaft 1 under the effect of spring 4, so the central shaft 22 of planet wheel 2 under the drive of slide block 3 generally with input shaft 1 decentraction, exist an eccentric distance e between the axis of the axis of planet wheel 2 and input shaft 1.Two sleeves 5 are installed in housing 10, and two relative sides of this two sleeve are the conical surfaces that is symmetric arrays.Under the effect of spring 4, two outer periphery of planet wheel 2 always contact with two conical surfaces of sleeve 5, therefore, always both do " rotation " around its central shaft when planet wheel rotates and also do " revolution " along the circumference that the conical surface with sleeve 5 contacts.Two sleeves 5 can slide vertically and produce mutually near or away from motion, so the distance between the conical surface of two sleeves 5 just can change, can make planet wheel 2 overcome the effect of spring 4 and change the eccentric distance e of planet wheel by the effect of the conical surface.As shown in Figure 1, can adopt screw rod 9 and with it two nuts 8 that match of spiral be used as regulating sleeve 5 axially movable controlling mechanisms, nut 8 pass be engaged in sleeve 5 after the respective openings on the housing 10 with conical surface facing surfaces on, by rotating screw bolt 9 can make two nuts 8 vertically relatively near or away from, thereby regulate two sleeves 5 vertically relatively near or away from, and then the eccentric distance e that changes planet wheel 2 is to reach the purpose of stepless speed regulation.
When dynamic power machine drives input shaft 1 rotation, owing to exist eccentric distance e between planet wheel 2 and the input shaft 1, add between the conical surface of upper planet wheel 2 and sleeve 5 frictional force is arranged, so just formed an arm of force that drives planet wheel 2 rotations, because planet wheel 2 links to each other with output shaft 7 by constant angular velocity transmission shaft 6, so can regard the output speed of planet wheel 2 as the output speed of whole stepless speed-regulating device.The input angular velocity of supposing input shaft 1 is ω 1, and the angular velocity of planet wheel is ω 2, and the linear velocity of planet wheel 2 is V, and the radius of planet wheel is r, and throw of eccentric is e, so just can represent relation between them with following formula:
ω1×e=ω2×r=V ……(1)
ω1/ω2=r/e ……(2)
As can be seen, speed ratio ω 1/ ω 2 of this stepless speed-regulating device is along with the radius r of planet wheel and the ratio of eccentric distance e change from formula (1) and (2).When two sleeves 5 lean on enough closely, when the center, the center of planet wheel 2 and input shaft 1 coincides planet wheel 2 by the conical surface of sleeve 5 top, and eccentric distance e is zero, and the ratio of the speed of input and output be infinitely great, means that promptly output speed is zero.Rotating screw bolt 9 gradually, promote two nuts 8, and two distances between the sleeve 5 are widened, and the eccentric distance e of planet wheel 2 also strengthens gradually like this, so the rotating speed of planet wheel 2 also increases gradually.Be rotated further screw rod 9, make the distance between two sleeves 5 maximum, the eccentric distance e maximum of planet wheel 2 at this moment, so gear ratio minimum, output speed maximum.R/e in this preferred embodiment, just the size of gear ratio gets 4: l.
Although a preferred embodiment of the present invention is described above, it should be understood that person skilled in the art can also make the change and the conversion of all equivalences under the prerequisite that does not depart from scope of the present invention and essence.For example, the controlling mechanism that can replace the spring 4 in the foregoing description and constitute with hydraulic mechanism by adjusting nut 8 and adjusting screw rod 9; Can replace described constant angular velocity transmission shaft 6 with common kinds of drive such as gear transmission, band transmissions; In addition, the size of the ratio (gear ratio) of the radius r of planet wheel and eccentric distance e also can be done different designs as required, for example chooses about 2.But these all variations all should fall among the protection scope of the present invention that is defined by the following claims.
Claims (5)
1. stepless speed-regulating device, it comprises that an one end is connected in the input shaft and an output shaft coaxial with described input shaft of dynamic power machine, it is characterized in that it also comprises: in the chute that is assemblied on the described input shaft the other end and slide block that can in chute, slide; One be assemblied in the described chute, make the driving member that move radially of described slide block along input shaft; One planet wheel, its central shaft are installed in the described slide block; One is connected to axle and described output shaft drive among the described planet wheel; Two coaxial and have the sleeve of the conical surface with described input shaft, and the conical surface part of described sleeve contacts with two outer periphery of described planet wheel; One make the conical surface of described sleeve draw close vertically or away from controlling mechanism; An and housing that holds described sleeve.
2. stepless speed-regulating device as claimed in claim 1 is characterized in that, described driving member can be one to be assemblied in the belleville spring between described slide block one side and the chute bottom.
3. stepless speed-regulating device as claimed in claim 1 is characterized in that, described controlling mechanism is a screw rod and two nuts that match of spiral with it, and described nut is engaged on two surfaces relative with the described conical surface of described sleeve after passing described housing.
4. stepless speed-regulating device as claimed in claim 1 is characterized in that, described transmission device can be a constant angular velocity transmission shaft.
5. stepless speed-regulating device as claimed in claim 1 is characterized in that, the ratio of the radius of described planet wheel and the throw of eccentric of planet wheel is 4: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97102129A CN1070593C (en) | 1997-01-14 | 1997-01-14 | Stepless governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97102129A CN1070593C (en) | 1997-01-14 | 1997-01-14 | Stepless governor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1188199A CN1188199A (en) | 1998-07-22 |
| CN1070593C true CN1070593C (en) | 2001-09-05 |
Family
ID=5166165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97102129A Expired - Fee Related CN1070593C (en) | 1997-01-14 | 1997-01-14 | Stepless governor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1070593C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101067443B (en) * | 2007-05-11 | 2010-05-19 | 吕圣楠 | Stepless speed changer |
| CN102878268B (en) * | 2012-10-24 | 2015-05-27 | 杨建明 | Variable-diameter crankshaft type gear stepless speed change method and speed changer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4505163A (en) * | 1980-05-23 | 1985-03-19 | Raimund Falkner | Mechanism with continuous adjustment for the transmission of a rotary motion between two coaxial shafts |
| US5071393A (en) * | 1988-05-31 | 1991-12-10 | Genovese Charles J | Continuously variable transmission |
-
1997
- 1997-01-14 CN CN97102129A patent/CN1070593C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4505163A (en) * | 1980-05-23 | 1985-03-19 | Raimund Falkner | Mechanism with continuous adjustment for the transmission of a rotary motion between two coaxial shafts |
| US5071393A (en) * | 1988-05-31 | 1991-12-10 | Genovese Charles J | Continuously variable transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1188199A (en) | 1998-07-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |