CN2241798Y - Non-fixed-spindle steel ball variable drive - Google Patents
Non-fixed-spindle steel ball variable drive Download PDFInfo
- Publication number
- CN2241798Y CN2241798Y CN 95250425 CN95250425U CN2241798Y CN 2241798 Y CN2241798 Y CN 2241798Y CN 95250425 CN95250425 CN 95250425 CN 95250425 U CN95250425 U CN 95250425U CN 2241798 Y CN2241798 Y CN 2241798Y
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- CN
- China
- Prior art keywords
- steel ball
- speed
- gradient
- shaft
- utility
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a steel ball stepless speed changer without a fixed shaft, which comprises a housing, an output shaft, an input shaft, a transmission mechanism, a pressurizing spring and a speed regulating control mechanism. The steel ball of the utility model has no fixed shaft, but the position change of the shaft center of the steel ball is determined by the contact position change of an output disk, a central wheel, a pressure wheel, a speed regulating disk and the steel ball. The contact radius between the steel ball and the output disk is altered through regulating for achieving the aim of exporting different rotation speeds and torques. The utility model absorbs the advantages of the fixed shaft steel ball and a planet steel ball stepless speed changer, and reduces unnecessary structures and contact friction loss, so the utility model has the advantages of high mechanical efficiency, small slip error, large speed-changing range, low noise, compact structure, low cost, etc.
Description
The utility model relates to mechanical variable-speed unit, and particularly steel ball does not have the stepless speed variator of dead axle.
Stepless speed variator is applicable to various vehicles, gearing, speed governing production line and requires speed change gear on the electromechanical equipment of speed governing, it can change continuously because of output speed, so be used widely, various stepless speed variator of the prior art, each have their own speciality, also each have their own shortcoming, picture dead axle steel ball stepless speed changer, feature is that steel ball does not have revolution, and its advantage is the mechanical efficiency height, and slippage is little, shortcoming is that slewing range is little, the noise height is big because of volume, manufacturing process is complicated, so the cost height.Also has a kind of planetary steel ball stepless transmission device, advantage is that slewing range is big, compact structure, noise is low, cost is low, but because the characteristics that steel ball can rotate freely and move, and the disjunctor fixed structure of speed disk and speed regulation control mechanism, make and increase many friction mechanism losses between driving component, so mechanical efficiency is low, temperature rise, slippage is big.
The purpose of this utility model is to overcome the defective of prior art, proposes a kind of mechanical efficiency height, slippage is little, slewing range is big, noise is low, cost is low no dead axle steel ball stepless speed changer.
The utility model is realized by following scheme: comprise the output shaft and the input shaft that are bearing in the housing, be provided with between output shaft and the input shaft be in transmission connection with it by central gear, pressure wheel, output disc, speed disk, the driving mechanism that steel ball is formed, pressing spring and speed regulation control mechanism, its special way is the central gear of described driving mechanism, pressure wheel, output disc, divide the mobilizable speed disk of body structure to constitute a plurality of movable supporting that are distributed in the control sheet frame slotted hole as the steel ball of transmission power, they change the shaft core position variation of decision steel ball with the some contact position of steel ball.The utility model utilizes speed regulation control mechanism control steel ball shaft core position to change the contact radius variation that changes steel ball and output disc, thereby reaches output different rotating speed and torque purpose.
Stepless speed variator according to design design of the present utility model does not have dead axle owing to steel ball, the movable supporting of driving mechanism not only can rotate freely steel ball and can go up simultaneously in the slotted hole of control sheet frame, move down, the axle center of its rotation forms virtually, both had the characteristics that planetary steel ball stepless transmission device can rotate freely and move, have the characteristics that the dead axle steel ball stepless speed changer does not have revolution again, structurally absorb both strong points, thereby the unnecessary structure and the consumption of contact friction have been significantly reduced, it is the combination of both advantages, so not only have the mechanical efficiency height, slippage is little, and it is big to have slewing range simultaneously, noise is low, simple and compact for structure, advantages such as cost is low.
Description of drawings.
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A sectional view of Fig. 1.
Be further elaborated again by above-mentioned accompanying drawing embodiment.
As shown in Figure 1, 2, output shaft of no dead axle steel ball stepless speed changer (1) and input shaft (13) are bearing in housing (2) bearing and the oil sealing, are provided with driving mechanism, pressing spring and speed regulation control mechanism between output shaft and the input shaft.
Driving mechanism comprises the output disc (3) that is connected with the output axle key, the central gear (15) that is connected with the input axle key, pressure wheel (14) is connected on the central gear by key, and what also comprise steel ball and be subjected to speed regulation control mechanism control and its split can axially movable speed disk (11).Output disc, central gear, pressure wheel, speed disk constitute 4～8 movable supporting that are distributed on the steel ball (4) of conduct transmission power in control sheet frame (5) slotted hole, thereby they and steel ball point contact position change the shaft core position of decision steel ball and change, steel ball there is no dead axle, can also upper and lowerly move so can not only rotate freely.Control sheet frame (5) is bearing on 4 round pins of fixing with housing (16).
Pressing spring (12) is for being sleeved on the butterfly spring on the center-wheel arbor, and it acts on the pressure wheel all the time, and axial end is made axial restraint with packing ring, jump ring.
Speed regulation control mechanism comprises the recessed dish of gradient (8), the protruding dish of gradient (9), speed governing screw mandrel (6) and speed governing piece (7).The recessed dish of gradient is sleeved on the outer bearing of speed disk, flexibly connects with the speed governing piece, (can only rotate and can not move axially) when the speed governing screw mandrel rotates, and the mobile recessed dish of gradient that can drive of speed governing piece is done angle rotation adjusting.And the protruding dish of gradient is fitted in inner walls, and the recessed dish of gradient and the protruding dish of gradient respectively have 4～8 uniform camming surfaces, relatively rotates friction in order to reduce, and steel ball (10) is set between two camming surfaces.When the needs speed governing, rotate the speed governing screw mandrel and drive the recessed disc spins several angle of gradient through the speed governing piece, the contact of its camming surface changes the promotion speed disk and moves axially, impel and move on the steel ball or move down, changed the contact radius of steel ball and output disc thus, reached the purpose of speed change thereby the rotating speed of output shaft is changed.
During transmission of power, central gear and pressure wheel are rotated under the drive of motor, because the axial pressure of butterfly spring makes the steel ball that is clipped between the two be pulled rotation, steel ball rotating freely in the control sheet frame, and then affected output disc rotation contacted with it, give output shaft with transmission of torque at last.
Claims (4)
1. there is not the dead axle steel ball stepless speed changer, comprise the output shaft (1) and the input shaft (13) that are bearing in the housing (2), be provided with between output shaft and the input shaft be in transmission connection with it by central gear (15), pressure wheel (14), output disc (3), speed disk (11), the driving mechanism that steel ball (4) is formed, pressing spring (12) and speed regulation control mechanism, the central gear that it is characterized in that described driving mechanism, pressure wheel, output disc, divide the mobilizable speed disk of body structure to constitute a plurality of movable supporting that are distributed in control sheet frame (5) slotted hole as the steel ball (4) of transmission power, they change the shaft core position variation of decision steel ball with the some contact position of steel ball.
2. no dead axle steel ball stepless speed changer as claimed in claim 1, it is characterized in that described speed regulation control mechanism comprises the recessed dish of gradient (8) that is sleeved on speed disk (11) outer bearing, the protruding dish of gradient (9) that is fitted in inner walls, have between the recessed dish of gradient of a plurality of camming surfaces and the protruding dish of gradient and be provided with steel ball (10), speed governing screw mandrel (6) and speed governing piece (7) that the recessed dish angular turn of control gradient is regulated.
3. no dead axle steel ball stepless speed changer as claimed in claim 1 is characterized in that the steel ball (4) that is distributed in control sheet frame (5) slotted hole is 4～8.
4. no dead axle steel ball stepless speed changer as claimed in claim 2 is characterized in that recessed dish of gradient (8) and the protruding dish of gradient (9) go up the steel ball (10) between uniform 4～8 camming surfaces and two camming surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95250425 CN2241798Y (en) | 1995-12-26 | 1995-12-26 | Non-fixed-spindle steel ball variable drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95250425 CN2241798Y (en) | 1995-12-26 | 1995-12-26 | Non-fixed-spindle steel ball variable drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2241798Y true CN2241798Y (en) | 1996-12-04 |
Family
ID=33886560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95250425 Expired - Fee Related CN2241798Y (en) | 1995-12-26 | 1995-12-26 | Non-fixed-spindle steel ball variable drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2241798Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102741589A (en) * | 2009-09-10 | 2012-10-17 | 托罗特拉克(开发)有限公司 | Epicyclic arrangements and related systems and methods |
| CN103600650A (en) * | 2013-10-28 | 2014-02-26 | 南通雷圣特种电机有限公司 | Special motor for light hybrid power vehicle |
| CN105317950A (en) * | 2015-11-10 | 2016-02-10 | 上海应用技术学院 | Continuously variable transmission device |
| CN108386521A (en) * | 2018-01-31 | 2018-08-10 | 钟怡晨 | A kind of stepless speed-regulating belt sheave of motor |
-
1995
- 1995-12-26 CN CN 95250425 patent/CN2241798Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102741589A (en) * | 2009-09-10 | 2012-10-17 | 托罗特拉克(开发)有限公司 | Epicyclic arrangements and related systems and methods |
| CN103600650A (en) * | 2013-10-28 | 2014-02-26 | 南通雷圣特种电机有限公司 | Special motor for light hybrid power vehicle |
| CN105317950A (en) * | 2015-11-10 | 2016-02-10 | 上海应用技术学院 | Continuously variable transmission device |
| CN105317950B (en) * | 2015-11-10 | 2018-08-28 | 上海应用技术学院 | Buncher device |
| CN108386521A (en) * | 2018-01-31 | 2018-08-10 | 钟怡晨 | A kind of stepless speed-regulating belt sheave of motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |