CN104763783A - Cascaded oscillating teeth continuously variable transmission device - Google Patents
Cascaded oscillating teeth continuously variable transmission device Download PDFInfo
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- CN104763783A CN104763783A CN201410746589.XA CN201410746589A CN104763783A CN 104763783 A CN104763783 A CN 104763783A CN 201410746589 A CN201410746589 A CN 201410746589A CN 104763783 A CN104763783 A CN 104763783A
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- continuously variable
- variable transmission
- cascaded
- transmission device
- oscillating tooth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
- F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
- F16H9/24—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using chains or toothed belts, belts in the form of links; Chains or belts specially adapted to such gearing
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
A cascaded oscillating teeth continuously variable transmission device belongs to the technical field of design and manufacture of continuously variable transmission devices. The cascaded oscillating teeth continuously variable transmission device concurrently has and extends the functions and technologies of an oscillating teeth continuously variable transmission, and achieves the stepless speed change of two or more stages. The cascaded oscillating teeth continuously variable transmission device is a continuously variable transmission device having a large scope of speed ratio; and the cascaded oscillating teeth continuously variable transmission device can deliver larger torques. A cascaded continuously variable transmission device refers to using an output shaft of a first stage transmission driven wheel as an input shaft of a second stage transmission, and the driven wheel of the second stage transmission is configured to rotate around the second stage transmission drive wheel in 360 degrees, accordingly meeting the design requirements of the continuously variable transmission devices for different cars. The cascaded transmission can be a two-stage type, or can be a multi-stage type based on the specific requirements of the speed ratio scope. The speed ratio scope of the conventional continuously variable transmission is increased by the cascaded transmission manner. The cascaded continuously variable transmission device is a continuously variable transmission device with a large speed ratio scope, and is able to achieve a good matching between the continuously variable transmission device and an engine, accordingly being able to be used in various required transmission fields.
Description
Technical field
The invention belongs to infinitely variable speed transmission design and manufacture technical field.
Background technique
At automobile manufacturing field, along with the fast development of science and technology, stepless speed variator, as ideal speed changer, is widely used in automobile industry.For mechanical stepless transmission, what adopt in a large number is friction driving, needs larger axial clamping force and carrys out transmitted power.Along with the appearance of oscillating tooth stepless speed changes devices, solve the friction driving problem of conventional friction formula stepless speed variator.Patent 200580039668.6 (slide plate deformable tooth stepless engagement oscillating tooth cone pulley, authorized announcement date: on June 10th, 2009, Authorization Notice No.: CN 100498006C) in describe a kind of slide plate distortion oscillating tooth stepless engagement oscillating tooth gear device, movable-tooth stepless speed transmission is a kind of Novel stepless variable-speed device be based upon on oscillating tooth mesh theory basis, this movable-tooth stepless speed transmission is a kind of non-friction type distortion oscillating tooth infinitely variable speed transmission, it changes traditional stepless change friction/Traction Drive mode, breach stepless change intrinsic power/efficiency barrier, can realize high-power, high efficiency transferring power.
Stepless speed variator can realize the consecutive variations of speed ratio, thus adapts to the engine output characteristics under variable working condition.But although stepless speed variator can realize the change of uninterrupted speed ratio, its speed ratio excursion is very limited.Therefore, engine output characteristics under limited speed ratio excursion can not make stepless speed variator adapt to any operating mode, namely stepless speed variator can not realize the matched well of itself and motor due to ratio coverage limited, namely also traditional stepless speed changes devices at every moment can not meet the requirement that motor works under optimum condition, thus make engine efficiency be restricted, also therefore can increase the generation of waste gas.
Summary of the invention
The present invention is on the basis of patent 200580039668.6, propose the design invention of tandem type oscillating tooth infinitely variable speed transmission, be intended to fundamentally to solve traditional stepless speed variator velocity ratio limited, and the matched well problem of stepless speed variator and motor can not be realized, to meet, to adapt to modernization demand, the especially demand of automotive industry.The present invention has concurrently and has expanded the function of movable-tooth stepless speed transmission, technology, achieves two-stage even multilevel stepless speed change, is a kind of infinitely variable speed transmission of speed ratio on a large scale.
Tradition stepless speed changes devices is one-level formula, is namely combined by bevel-gear sett, the invention belongs to tandem type infinitely variable speed transmission, combine by two to even multipair oscillating tooth cone pulley.The main cause that tradition stepless speed changes devices can not realize tandem type variable transmission is that traditional stepless speed variator makes to produce friction between cone pulley and driving belt by cone pulley axial clamping force and carrys out transmission, it is torque limited that it transmits, and need larger axial clamping force, speed changer normally plays the effect of deceleration increment, for the cascade of traditional stepless speed variator, the torque of its every one-level transmission is all limited, if the torque required is excessive, driving belt may be made to occur skidding, ratio coverage can not effectively increase, and it is higher to the requirement of axial clamping force, therefore the cascade of traditional infinitely variable speed transmission does not have too large realistic meaning.But the invention belongs to tandem type oscillating tooth infinitely variable speed transmission, this non-friction type continuously variable transmittion is a kind of oscillating tooth engagement driving, axial clamping force requires very low, can realize large transmission of torque and there will not be skidding.
A kind of tandem type infinitely variable speed transmission, is characterized in that, comprise two pairs of oscillating tooth gears, input shaft, at least one jack shaft, output shaft, every a pair oscillating tooth gear inside is connected by metal chain or band, adopt oscillating tooth engagement driving, jack shaft is previous stage output shaft, is also rear stage input shaft.
Further, described tandem type infinitely variable speed transmission is two-stage type or multistage.
Further, the follower of described its rear stage of tandem type infinitely variable speed transmission rotates around jack shaft 360 ° to be arranged, jack shaft is this grade of input shaft namely.
Tandem type infinitely variable speed transmission refers to using the input shaft of the output shaft of primary transmission follower as second level transmission, i.e. jack shaft, and the follower of second level transmission is arranged and can be rotated layout around second level transmission input shaft 360 °, to meet the designing requirement of different vehicle stepless speed changes devices.The tandem type kind of drive increases traditional stepless change ratio coverage, is a kind of infinitely variable speed transmission of large speed ratio scope, can realizes the matched well of stepless speed variator and motor.
The oscillating tooth cone pulley of tandem type infinitely variable speed transmission is designed to cone pulley, fix for one in cone pulley, another can move axially, and cone pulley has passage, and oscillating tooth body two ends are provided with pulley, pulley directly contacts with cone pulley in cone pulley passage, when movable cone pulley moves axially, oscillating tooth body relies on pulley to move up and down along cone pulley passage, and driving belt directly contacts with oscillating tooth body, and then move up and down by oscillating tooth body the diameter changing driving belt, realize oscillating tooth variable transmission thus.Oscillating tooth body has two oscillating tooth grooves, oscillating tooth sheet is loaded in oscillating tooth groove, i.e. two cover oscillating tooth sheets, oscillating tooth sheet can throw away by centrifugal force from oscillating tooth groove, and have perforate in the middle of oscillating tooth sheet, wherein limited location element passes, limit element moves up and down scope for what retrain oscillating tooth sheet, with engaging tooth on driving belt, engaging tooth can complete engagement with oscillating tooth sheet, realizes non-model control transmission.An oscillating tooth cone pulley can arrange multiple oscillating tooth body.
Oscillating tooth device of the present invention can adopt slide plate to be out of shape oscillating tooth, and also can adopt the oscillating tooth sheet with reposition element, reposition element is made up of elastic material, can be spring, spring sheet, rubber.This reposition element can make oscillating tooth sheet remain at above-mentioned outside extended configuration, when stepless speed changes devices is started working, the oscillating tooth sheet not needing to be meshed with it can be depressed by metal chain or band, namely the oscillating tooth sheet be not depressed completes engagement, when oscillating tooth sheet and metal chain or when being with engaging tooth to depart from, can reset condition be returned under the effect of reposition element, go round and begin again, realize the stepless transmission of non-friction type.Therefore, before stepless transmission runs, oscillating tooth sheet is meshed with engaging tooth, and oscillating tooth sheet throws away by larger centrifugal force when not needing to start, friction driving problem during startup can be solved, and the device wearing and tearing brought thus and noise problem, extension fixture working life, improve the efficiency of transmission device.
In addition, owing to the invention belongs to V belt translation stepless speed changes devices, the distance of shaft centers of belt wheel can be changed by changing belt length, the distance of shaft centers of needs can be designed according to specific requirement, the infinitely variable speed transmission of compact structure can be designed as by reduction distance of shaft centers.Although tandem type design can be realized for conventional gears transmission, but gear transmission can not realize continuously changing velocity ratio, and gear transmission want increase velocity ratio just must increase follower diameter, this can cause follower oversize, weight increases, and rotary inertia increases, thus makes transmission unstable, increasing follower size also can make distance of shaft centers increase, and is easy to not meet design requirement.
In sum, the present invention has following features: the invention belongs to infinitely variable speed transmission, can continuously change velocity ratio; The present invention adopts with the oscillating tooth device of reposition element, can solve friction driving problem during startup, and the device wearing and tearing brought thus and noise problem, extension fixture working life, improves the efficiency of transmission device.Distance of shaft centers can be changed by changing belt length, designing the transmission device of compact structure; The invention belongs to oscillating tooth infinitely variable speed transmission, large torque, high-power transmission can be realized; The invention belongs to tandem type oscillating tooth infinitely variable speed transmission, can effectively increase gear range and not increase band size of wheel.Therefore, the present invention integrates the advantage of traditional mechanical transmission, traditional stepless speed variator and movable-tooth stepless speed transmission, and can realize large-scale speed-ratio regulation, really realizes the matched well of stepless speed variator and motor.
Accompanying drawing explanation
Fig. 1 is the structure composition schematic diagram of tandem type oscillating tooth infinitely variable speed transmission (two-stage).
Fig. 2 is that the follower of second level transmission is arranged and can be rotated layout plan around second level transmission input shaft 360 °.
Fig. 3 is tandem type oscillating tooth cone pulley (before operation) structure composition schematic diagram.
Fig. 4 is the oscillating tooth apparatus structure composition schematic diagram with reposition element.
Fig. 5 is the oscillating tooth device working procedure schematic diagram with reposition element.
Wherein:
1, oscillating tooth cone pulley 2, primary input axial
3, secondary output shaft 4, metal chain or band
5, jack shaft 6, oscillating tooth body
7, oscillating tooth sheet 8, reposition element and device thereof
9, pad 10, limit element
11, reposition element (spring sheet) 12, reposition element seat
13, fixed element
Embodiment
Embodiments of the invention as Figure 1-Figure 5.
See Fig. 1, the structure of tandem type oscillating tooth infinitely variable speed transmission mainly comprises oscillating tooth stepless change oscillating tooth cone pulley, containing the metal chain of engaging tooth or band, input shaft, jack shaft, output shaft.What the present invention adopted is oscillating tooth device with reposition element, and this reposition element can make oscillating tooth sheet remain at outside extended configuration, as shown in Figure 3, Figure 4.When stepless speed changes devices is started working, the oscillating tooth sheet not needing to be meshed with it can be depressed by metal chain or band, and namely the oscillating tooth sheet be not depressed completes engagement, as shown in Figure 5.When oscillating tooth sheet and metal chain or when being with engaging tooth to depart from, can reset condition be returned under the effect of reposition element, go round and begin again, realize the stepless transmission of non-friction type.Therefore, before stepless transmission runs, oscillating tooth sheet is meshed with engaging tooth, and when not needing to start, oscillating tooth sheet throws away by larger centrifugal force.First reposition element seat is loaded oscillating tooth groove during installation, then spring sheet is loaded in groove, due to the shape advantage of spring sheet, spring sheet can put into oscillating tooth groove, again pad is contained in spring sheet top, oscillating tooth sheet to be placed on pad and to pass with limit element, as shown in Figure 4.
The present invention on this basis, innovatively achieve tandem type variable transmission, Figure 1 shows that two-stage type oscillating tooth infinitely variable speed transmission, its jack shaft previous stage output shaft, also be rear stage input shaft, and rear stage follower can rotate around jack shaft 360 ° to be arranged, to meet the layout design requirement of different vehicle.And multistage layout can be carried out as requested, in the hope of larger speed ratio excursion.Large-scale speed ratio change fundamentally can realize the matched well of infinitely variable speed transmission and motor.
Claims (3)
1. a tandem type infinitely variable speed transmission, it is characterized in that, comprise two pairs of oscillating tooth gears, input shaft, at least one jack shaft, output shaft, every a pair oscillating tooth gear inside is connected by metal chain or band, adopt oscillating tooth engagement driving, jack shaft is previous stage output shaft, is also rear stage input shaft.
2. tandem type oscillating tooth infinitely variable speed transmission according to claim 1, is characterized in that, described tandem type infinitely variable speed transmission is two-stage type or multistage.
3. tandem type oscillating tooth infinitely variable speed transmission according to claim 1, is characterized in that, the follower of described its rear stage of tandem type infinitely variable speed transmission rotates around jack shaft 360 ° to be arranged, jack shaft is this grade of input shaft namely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410746589.XA CN104763783A (en) | 2014-12-08 | 2014-12-08 | Cascaded oscillating teeth continuously variable transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410746589.XA CN104763783A (en) | 2014-12-08 | 2014-12-08 | Cascaded oscillating teeth continuously variable transmission device |
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| Publication Number | Publication Date |
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| CN104763783A true CN104763783A (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410746589.XA Pending CN104763783A (en) | 2014-12-08 | 2014-12-08 | Cascaded oscillating teeth continuously variable transmission device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156619A (en) * | 2015-07-17 | 2015-12-16 | 北京工业大学 | Composite stepless variable transmission device |
| CN105276098A (en) * | 2015-11-04 | 2016-01-27 | 北京工业大学 | Movable tooth stepless speed change transmission device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539880Y (en) * | 2002-03-25 | 2003-03-12 | 兖州市威龙机械有限公司 | Up-regulating belt driving stepless speed change device |
| CN100498006C (en) * | 2004-09-21 | 2009-06-10 | 北京维艾迪汽车科技有限公司 | Slipper deformable tooth stepless meshing adjustable gear |
| JP2011196541A (en) * | 2010-03-23 | 2011-10-06 | Takanori Matsumura | Double row cvt (continuously variable transmission) |
| JP2014016008A (en) * | 2012-07-11 | 2014-01-30 | Nissan Motor Co Ltd | Continuously variable transmission mechanism |
| CN204420028U (en) * | 2014-12-08 | 2015-06-24 | 北京工业大学 | Tandem type oscillating tooth infinitely variable speed transmission |
-
2014
- 2014-12-08 CN CN201410746589.XA patent/CN104763783A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539880Y (en) * | 2002-03-25 | 2003-03-12 | 兖州市威龙机械有限公司 | Up-regulating belt driving stepless speed change device |
| CN100498006C (en) * | 2004-09-21 | 2009-06-10 | 北京维艾迪汽车科技有限公司 | Slipper deformable tooth stepless meshing adjustable gear |
| JP2011196541A (en) * | 2010-03-23 | 2011-10-06 | Takanori Matsumura | Double row cvt (continuously variable transmission) |
| JP2014016008A (en) * | 2012-07-11 | 2014-01-30 | Nissan Motor Co Ltd | Continuously variable transmission mechanism |
| CN204420028U (en) * | 2014-12-08 | 2015-06-24 | 北京工业大学 | Tandem type oscillating tooth infinitely variable speed transmission |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156619A (en) * | 2015-07-17 | 2015-12-16 | 北京工业大学 | Composite stepless variable transmission device |
| CN105156619B (en) * | 2015-07-17 | 2019-04-19 | 北京工业大学 | Combined type infinitely variable speed transmission |
| CN105276098A (en) * | 2015-11-04 | 2016-01-27 | 北京工业大学 | Movable tooth stepless speed change transmission device |
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Application publication date: 20150708 |
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