CN203703028U - Single-stage disk type friction continuously variable transmission - Google Patents
Single-stage disk type friction continuously variable transmission Download PDFInfo
- Publication number
- CN203703028U CN203703028U CN201320637060.5U CN201320637060U CN203703028U CN 203703028 U CN203703028 U CN 203703028U CN 201320637060 U CN201320637060 U CN 201320637060U CN 203703028 U CN203703028 U CN 203703028U
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- speed ratio
- disc
- regulates
- load regulation
- input
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- Expired - Fee Related
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Abstract
Single-stage disc type friction continuously variable transmission comprises a gearbox body, an input shaft, an input disc, an output disc, an output shaft, a speed ratio adjusting mechanism, a roller and a load adjusting mechanism. The working principle is that power of the an internal combustion engine is transmitted to the input shaft, the input disc drives the roller to rotate through friction force, and the roller drives the output disc to rotate through friction force; a transmission ratio in the transmission process is a ratio of radius of the output disc contacted with the roller to the radius of the input disc contacted with the roller; the power is output through the output shaft; and by means of the speed ratio adjusting mechanism, the roller position can be continuously changed, and different transmission ratios are obtained, so that vehicle travelling requirements are met.
Description
Technical field
The utility model relates to the stepless speed variator in a kind of vehicle drive system.
Background technique
In current vehicle drive system, widely used stepless speed variator generally has fluid torque converter and CVT speed changer.Although fluid torque converter have advantages of reliable operation, smooth-going and can prevent overload, cost is high, efficiency is lower.CVT speed changer is a kind of stepless speed variator by friction driving, although cost is lower, efficiency is higher, control system complexity, reliability are lower.
Model utility content
The purpose of this utility model is to provide a kind of single-stage disc type friction stepless gearbox, this speed changer by disc friction disk simple in structure and cylindrical roller as driving parts.The position that changes frictional force point of action between master and slave Moving plate and roller by changing the position of cylindrical roller, obtains different velocity ratios; , control convenience more simple with traditional C VT stepless speed variator structure compared; Low cost of manufacture.
Structure of the present utility model regulates motor, speed ratio adjusting screw rod, speed ratio to regulate support, roller, Load Regulation motor, main spring, Load Regulation spring and spring seat to form by gearbox casing, input shaft, input disc, output disc, output shaft, speed ratio.Wherein, input shaft, output shaft are loaded on gearbox casing by bearing, are all shaped with spline on each axle; Input disc, output disc are all disc, are contained in respectively on input shaft, output shaft by spline, in the time of needs transmitting large torque, can fill multiple input discs and output disc.Speed ratio regulates support to make U-shaped, input disc is clipped in U-shaped speed ratio and regulates in the middle of support, speed ratio regulates on support and is shaped with threaded hole, be connected with speed ratio adjusting screw rod by tapped hole, speed ratio regulates motor to be fixed on gearbox casing, speed ratio regulates on support and is shaped with rectangular opening, and input shaft regulates the hole (shaft part corresponding with hole can add rolling bearing, to alleviate the friction between axle and hole) on support through speed ratio; It is cylindrical that speed ratio regulates the end of support, dress cylindrical roller on it; Roller clip is in the middle of input disc and output disc.One end of output shaft is shaped with screw thread, and this end is equipped with Load Regulation spring, main spring, main spring seat and Load Regulation spring seat, and main spring is used for providing basic impacting force, to meet little load transferring power; Load Regulation spring increases impacting force (can reduce impacting force when speed change) when being used for, loading greatly; The position of main spring seat is limited by the nut being spun on axle; Load Regulation spring socket sleeve, on main spring seat, and can relatively move; The position that Load Regulation spring seat outwards moves is limited by main spring seat.On gearbox casing, firm demand regulates electric machine support herein; On it, firm demand regulates motor, and Load Regulation motor can be with reducer of turbodrill to increase output torque; Load Regulation motor shaft is connected with Load Regulation screw rod, for regulating Load Regulation spring seat position, and then the impacting force of adjusting input and output dish pair roller.
Working principle: when internal combustion engine, the power of internal-combustion engine passes on input shaft, input shaft drives input disc rotation; Input disc drives roller to rotate by frictional force, and roller drives output disc to rotate by frictional force; Velocity ratio in this transmission process is output disc and roller contact place radius and the ratio of input disc with roller contact place radius.Regulate motor can continuously change the position of roller by adjusting speed ratio, obtain different velocity ratios, to meet Vehicle Driving Cycle requirement.Can continuously change telophragma pair roller impacting force by Load Regulation motor, the transmission requirement when meeting vehicle different load.
The good effect that the utility model produces is: by disc friction disk simple in structure and cylindrical roller as driving parts.The position of action point that changes input and output dish frictional force by changing the position of roller, obtains different velocity ratios; Compared with traditional C VT stepless speed variator, structure is more simple, control is convenient, low cost of manufacture.
Brief description of the drawings
Accompanying drawing is tectonic maps of the present utility model, (1) Load Regulation motor in figure, (2) Load Regulation screw rod, (3) adjusting nut, (4) Load Regulation electric machine support, (5) main spring seat, (6) main spring, (7) output disc, (8) output shaft, (9) bearing, (10) spline, (11) roller, (12) input shaft, (13) gearbox casing, (14) input disc, (15) speed ratio regulates support, (16) speed ratio regulates motor, (17) Load Regulation spring, (18) Load Regulation spring seat, (19) thrust-bearing, (20) Load Regulation bar, (21) rectangular opening, (22) speed ratio adjusting screw rod.
Embodiment
Input shaft in accompanying drawing (12), output shaft (8), be contained on gearbox casing (13) by bearing, input disc (14), output disc (7) are loaded on respectively input shaft (12), output shaft (8) above by spline (10), and speed ratio regulates support (15) to be connected with speed ratio adjusting screw rod (22).
Claims (2)
1. a single-stage disc type friction stepless gearbox, is characterized in that: single-stage disc type friction stepless gearbox regulates motor, speed ratio adjusting screw rod, speed ratio to regulate support, roller, Load Regulation motor, main spring, Load Regulation spring and spring seat to form by gearbox casing, input shaft, input disc, output disc, output shaft, speed ratio; Wherein, input shaft, output shaft are loaded on gearbox casing by bearing, are all shaped with spline on each axle; Input disc, output disc are all disc, are contained in respectively on input shaft, output shaft by spline; Speed ratio regulates support to make U-shaped, and input disc is clipped in U-shaped speed ratio and regulates in the middle of support, and speed ratio regulates on support and is shaped with threaded hole, is connected with speed ratio adjusting screw rod by tapped hole, and speed ratio adjusting screw rod and speed ratio regulate motor coaxle; Speed ratio regulates motor to be fixed on gearbox casing, and speed ratio regulates on support and is shaped with rectangular opening, and input shaft regulates the hole on support through speed ratio; It is cylindrical that speed ratio regulates the end of support, dress cylindrical roller on it; Roller clip is in the middle of input disc and output disc.
2. single-stage disc type friction stepless gearbox as claimed in claim 1, it is characterized in that: one end of output shaft is shaped with screw thread, this end is equipped with Load Regulation spring, main spring, main spring seat and Load Regulation spring seat, and the position of main spring seat is limited by the nut being spun on axle; Load Regulation spring socket sleeve, on main spring seat, and can relatively move; The position that Load Regulation spring seat outwards moves is limited by main spring seat; On gearbox casing, firm demand regulates electric machine support, and on it, firm demand regulates motor, and Load Regulation motor shaft is connected with Load Regulation screw rod, for regulating Load Regulation spring seat position, and then the impacting force of adjusting input and output dish pair roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320637060.5U CN203703028U (en) | 2013-10-16 | 2013-10-16 | Single-stage disk type friction continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320637060.5U CN203703028U (en) | 2013-10-16 | 2013-10-16 | Single-stage disk type friction continuously variable transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703028U true CN203703028U (en) | 2014-07-09 |
Family
ID=51053475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320637060.5U Expired - Fee Related CN203703028U (en) | 2013-10-16 | 2013-10-16 | Single-stage disk type friction continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122405A (en) * | 2016-08-31 | 2016-11-16 | 四川大学 | The towed buncher in a kind of adaptive rate square position |
-
2013
- 2013-10-16 CN CN201320637060.5U patent/CN203703028U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122405A (en) * | 2016-08-31 | 2016-11-16 | 四川大学 | The towed buncher in a kind of adaptive rate square position |
| CN106122405B (en) * | 2016-08-31 | 2018-06-19 | 四川大学 | A kind of towed contiuously variable transmission in adaptive rate square position |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20161016 |