CN2197516Y - Cambered surface disc type stepless speed changer - Google Patents
Cambered surface disc type stepless speed changer Download PDFInfo
- Publication number
- CN2197516Y CN2197516Y CN 93202025 CN93202025U CN2197516Y CN 2197516 Y CN2197516 Y CN 2197516Y CN 93202025 CN93202025 CN 93202025 CN 93202025 U CN93202025 U CN 93202025U CN 2197516 Y CN2197516 Y CN 2197516Y
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- China
- Prior art keywords
- cambered surface
- stepless speed
- dish
- surface dish
- face
- Prior art date
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- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008844 regulatory mechanism Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The invented stepless speed variator is a mechanical stepless speed variator suitable for the medium-low power stepless speed variation transmission, which adopts a pair of driving arc discs 2 whose end faces are spherical surfaces and separated from each other, and under the action of disk spring 4, it is pressed on the driven arc disc 9 whose end faces are circular surfaces and mounted on the output shaft 10, and the power is transferred by means of friction force between them, and by changing their contact radius RxAnd RyThe stepless speed change is realized, the output of positive and negative rotating speed and 0 rotating speed can be realized, the speed change range is infinite, and the stepless speed change device also has the advantages of long service life, stable operation and high transmission efficiency.
Description
The utility model relates to a kind of mechanical stepless transmission.
The background technique close with the utility model is multi-disk type stepless variable speed unit, and multi-disk type stepless variable speed unit is published in China Machine Press, in " mechanical stepless transmission " (front page in the October nineteen eighty-three) book by the Ruan Zhongtang chief editor, carried out detailed argumentation.Multi-disk type stepless variable speed unit be domestic and international application more extensively and comparatively successful a kind of stepless speed variator, it has adopted some awl dishes and T shape dish (end face is the conical surface), realized dividing the transmission of many contact areas that conflux, can make more powerful stepless speed variator, but because of above-mentioned awl dish is contained on the axle and the end face of awl dish is the cause of the conical surface, make awl dish and T shape dish the contact area can not by or be parked near the summit or summit of awl dish awl end face, thereby can only realize the output of unidirectional rotating speed, and can not realize the output of 0 rotating speed, and slewing range is also less.
The purpose of this utility model is little in order to solve the existing slewing range of multi-disk type stepless variable speed unit commonly used at present, only can realize unidirectional rotating speed output, and can not realize the technical problem of 0 rotating speed output, design under a kind of middle low power blanket slewing range for infinitely great, and can realize the stepless speed variator that positive and negative rotating speed and 0 rotating speed are exported.
The utility model is by casing 3, input shaft 1, output shaft 10 and be used for infinite variable speed intermediate transmission mechanism etc. and partly form, it is characterized in that being used for infinite variable speed intermediate transmission mechanism and formed by the driven cambered surface dish 9 that end face pressed of active cambered surface dish 2 back to the active cambered surface dish 2 that is separated from each other and the both ends of the surface of installing, and initiatively cambered surface dish 2 is contained in the endoporus of the driven gear 5 that is arranged in the swinging mounting 7 that an energy rotates around the center line of input shaft 1 by a pair of.
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model is to realize like this, driving gear 6 is housed on input shaft 1, driving gear 6 is meshed with driven gear 5, initiatively cambered surface dish 2 is housed in the endoporus of driven gear 5, slippage key 8 is housed between them, and initiatively cambered surface dish 2 can be done a spot of moving to axial with driven gear 5; The power of input shaft 1 passes to initiatively cambered surface dish 2 by driving gear 6 and driven gear 5; Initiatively cambered surface dish 2 is installed in an energy in the swinging mounting 7 of the center line rotation of input shaft 1 together with driven gear 5; A pair of active cambered surface dish 2 respectively is installed in the both sides of driven cambered surface dish 9; Initiatively the point of contact of the end face of cambered surface dish 2 and the end face of driven cambered surface dish 9 can by or be parked in the initiatively end face summit of cambered surface dish 2, this is to being used for infinite variable speed intermediate transmission mechanism back to the active cambered surface dish of installing 2 that is separated from each other and both ends of the surface by the driven cambered surface dish that end face pressed 9 formations of active cambered surface dish 2 are of the present utility model; Two involutory belleville springs 4 are housed on the axle head shoulder of active cambered surface dish 2, be used to produce the impacting force on the end face that the end face of cambered surface dish 2 initiatively is pressed on driven cambered surface dish 9, thereby the point of contact place at the end face of the end face of active cambered surface dish 2 and driven cambered surface dish 9 produces frictional force, initiatively cambered surface dish 2 relies on the effect of frictional force to give driven cambered surface dish 9 transmission of power, passes to output shaft 10 at last; When speed governing, regulate adjustable diameter and screw adjusting mechanism 11 as shown in Figure 2, make swinging mounting 7 rotate around the center line of input shaft 1, make initiatively the cambered surface dish 2 along with swinging mounting 7 rotates around the center line of input shaft 1 together like this, thereby changed the centre distance a between the center line of the center line of cambered surface dish 2 initiatively and driven cambered surface dish 9
X, also just make the point of contact of end face of the end face of cambered surface dish 2 initiatively and driven cambered surface dish 9 on the end face of active cambered surface dish 2, to move, promptly changed the contact radius R of the point of contact of the end face of cambered surface dish 2 initiatively and driven cambered surface dish 9
xAnd R
y, so just changed the output speed n of driven cambered surface dish 9 or input shaft 10
3, realized stepless change; When the point of contact of the end face of the end face of active cambered surface dish 2 and driven cambered surface dish 9 is parked in the end face summit of cambered surface dish 2 initiatively, contact radius R
xBe 0, the output speed n of output shaft 10
3Also be 0; When their point of contact is between the center line of the center line of active cambered surface dish 2 and driven cambered surface dish 9, the output speed n of output shaft 10
3Input speed n with input shaft
1Direction identical; When their point of contact is positioned at outside the center line of the center line of cambered surface dish 2 initiatively and driven cambered surface dish 9, the output speed n of output shaft 10
3Input speed n with input shaft 1
1Direction opposite, therefore, the utility model has been realized the output of positive and negative rotating speed and 0 rotating speed.
The utlity model has following advantage: cambered surface disc type stepless speed changer can be realized the output of positive and negative rotating speed and 0 rotating speed, and slewing range is infinitely great; This stepless speed variator is because the radius of curvature of contact area is very big, and the branch that can the realize two contact areas transmission of confluxing, therefore transmission capacity is big, can realize the stepless change transmission of middle low power, and because the radius of curvature of contact area is very big, thereby reduced contact stress, contact surface easily forms the high strength wedge-shaped oil film, help reducing wear, therefore, working life is longer; All rotational parts of this stepless speed variator are solid of rotation, and moment of inertia is very little, thus vibrate little, running steadily, in addition, this stepless speed variator efficient is higher, structure is comparatively compact, manufacturing, installation and simple to operation; Owing to have above advantage, therefore, cambered surface disc type stepless speed changer is the ideal machine stepless speed variator of all good middle low power stepless change transmission of a kind of performance each side.
Description of drawings:
Fig. 1, the utility model basic structure sketch.
Fig. 2, reflection active cambered surface dish 2, driven cambered surface dish 9, swinging mounting 7 and the mutual alignment relation of input shaft 1 central position and the schematic representation of spiral speed regulation mechanism 11.
Realize that best way of the present utility model can be according to shown in Figure 1, it is R that the end face of active cambered surface dish 2 is made radius
1The ball face, the both ends of the surface of driven cambered surface dish 9 are made toroidal surface, the radius of arc of its circular section is R
2, and the radius of the annulus that the center line of its circular section circular arc forms is R
mPressuring method adopts belleville spring 4 to pressurize, and can reduce axial dimension like this, and plus-pressure is also bigger.
Claims (3)
1, a kind of cambered surface disc type stepless speed changer, form by casing, input shaft, output shaft and the part that is used for infinite variable speed intermediate transmission mechanism, it is characterized in that being used for infinite variable speed intermediate transmission mechanism and formed by the driven cambered surface dish [9] that end face pressed of active cambered surface dish [2] back to the active cambered surface dish [2] that is separated from each other and the both ends of the surface of installing by a pair of.
2,, it is characterized in that cambered surface dish ［ 2 ］ initiatively is contained in the endoporus of the driven gear ［ 5 ］ that is arranged in the swinging mounting ［ 7 ］ that an energy rotates around the center line of input shaft ［ 1 ］ according to the cambered surface disc type stepless speed changer of claim 1.
3, according to the cambered surface disc type stepless speed changer of claim 1, it is characterized in that initiatively the end face of cambered surface dish ［ 2 ］ is the ball face, the both ends of the surface of driven cambered surface dish ［ 9 ］ are toroidal surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93202025 CN2197516Y (en) | 1993-01-13 | 1993-01-13 | Cambered surface disc type stepless speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93202025 CN2197516Y (en) | 1993-01-13 | 1993-01-13 | Cambered surface disc type stepless speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2197516Y true CN2197516Y (en) | 1995-05-17 |
Family
ID=33786325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93202025 Expired - Fee Related CN2197516Y (en) | 1993-01-13 | 1993-01-13 | Cambered surface disc type stepless speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2197516Y (en) |
-
1993
- 1993-01-13 CN CN 93202025 patent/CN2197516Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Qian Qingming Document name: payment instructions |
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| 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 |