CN1474075A - Quasi-stepless speed changer - Google Patents
Quasi-stepless speed changer Download PDFInfo
- Publication number
- CN1474075A CN1474075A CNA021345333A CN02134533A CN1474075A CN 1474075 A CN1474075 A CN 1474075A CN A021345333 A CNA021345333 A CN A021345333A CN 02134533 A CN02134533 A CN 02134533A CN 1474075 A CN1474075 A CN 1474075A
- Authority
- CN
- China
- Prior art keywords
- gear
- engagement
- gears
- shift
- speed changer
- Prior art date
- 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.)
- Pending
Links
Images
Landscapes
- Structure Of Transmissions (AREA)
Abstract
The speed changer has one conic gear cluster comprising angular gears connected via overrunning clutch to one first shaft and with different numbers of cogs but the same pitch, and one other gear on the second shaft and meshed with one gear of the conic gear cluster via the shift of the second shaft to realize shift to alter speed and moment. There are synchronizing measures for smooth shift among different conic gears. During shift, one of two adjacent gears in the conic gear cluster produces overrunning motion for synchronous mesh between two gears. The present invention has great power transmission capacity, simple structure, approaching to stepless speed change for optimal power and efficiency transmission and smooth shift.
Description
Technical field the present invention is about a kind of speed change gear.
The background technique speed changer be divided into manually and automatically, level and stepless arranged.Manual transmission is the most basic speed change gear, mainly is made up of gear and axle, produces the speed change bending moment by different Gear combination.Modern speed changer is realizing that high-power transmission and stepless automatic transmission are target, and the structure of speed changer itself is the prerequisite of realizing this goal.Common automatic transmission is hydraulic mechanical type automatic transmission (being called for short AT) and mechanical stepless automatic transmission (being called for short CVT) at present, and that car generally uses is AT.
AT is made up of torque converter, planetary pinion and hydraulic control system, and the mode by fluid power transmission and Gear combination reaches the speed change bending moment.Torque converter plays direct input engine power transmitting torque and clutch action, it is made up of members such as pump impeller, turbine and guide wheels, pump impeller and turbine are a pair of work combinations, use liquid transfer kinetic energy between them, pump impeller drives the turbine rotation by liquid, makes by reaction force at the guide wheel between pump impeller and the turbine and realizes between pump impeller and the turbine that speed discrepancy reaches the speed change bending moment.Fluid torque converter automatic speed-changing and torque-converting scope is big inadequately, and a few rows of planetary gears of need connecting again in the turbine back are raised the efficiency, and hydraulic control system changes with engine operation handles planetary pinion voluntarily, realizes the speed change bending moment.The AT complex structure, operational efficiency is low, and oil consumption is big, makes difficulty.
CVT adopts the ratchet of driving belt and variable groove width to carry out transmission of power, and when ratchet changed groove width, the contact radius of driving belt reached speed change on corresponding change driving wheel and the follower.Driving belt is generally used rubber tape, metal tape and metal chain etc.CVT is stepless change, and is in light weight, and volume is little, and part is few, has higher running efficiency, and oil consumption is lower, but its driving belt is easy to damage, can not bear big load, can only limit the use of in low-power and low moment of torsion occasion, and usage range is very little.
Existing domestic and international speed changer patent reaches over thousands of at present, roughly classifies as: one, add infinitely variable speed structure on the planetary pinion basis, as introduce tapered the wheel, ball-type ball etc.; Two, AT is carried out some improvement; Three, to the various improvement of V shaped wheel speed change; Four, other, as automatic change gear diameter.Ubiquitous problem remains, and transmission efficiency is low, can not be used for high-power high pulling torque transmission.
Summary of the invention the purpose of this invention is to provide a kind of simple in structure, can transmit high-power big torque, and the transmission efficiency height is convenient to realize the self-shifting device.
The object of the present invention is achieved like this; The tapered gear installed of order constitutes a tapered gear train by size on same axle, and with another a gear engagement, this gear can be respectively and the different gear engagement of tapered gear train by moving axially.
The present invention has following advantage;
One, owing to take gear transmission, can transmit high-power big torque, the transmission efficiency height;
Two, needn't use hydraulic system, simple in structure, be convenient to make;
Three, the gear ratio between each speed change gear is very approaching, is similar to stepless change, is convenient to realize the best merit of power
Imitate and transmit, save the energy;
Four, gear shift is fast, steadily, is convenient to realize automatic speed changing.
Description of drawings Fig. 1 is basic embodiment's schematic representation of quasi-stepless speed changer of the present invention.The 1-input shaft; The tapered gear train of 2-; The 3-output shaft; The 4-spur gear.
Fig. 2 is the synchronizer schematic representation.The 16-spiral chute; The 17-slide block.
Fig. 3 is can self-shifting quasi-stepless speed changer schematic representation.The 1-input shaft; 5-middle straight gear; 6-speed change regulating wheel; The 7-screw-thread drive shaft; The 8-output shaft.
Fig. 4 is the sectional drawing of spur gear among Fig. 3.
Fig. 5 is the electronic automatic transmission schematic representation.The 9-stepper motor.
Fig. 6 is the automatic quasi-stepless speed changer schematic representation that is applied to automobile.The 10-clutch; The driven tapered gear train of 11-; The 12-output shaft; The 13-reverse gear; The 14-forward gears; The 15-declutch shift lever.
Embodiment is below in conjunction with the marginal data embodiment.Scheme 1: the basic implementation of quasi-stepless speed changer
Fig. 1 is quasi-stepless speed changer elementary cell figure, actual is that the tapered gear on the input shaft 1 is decomposed into a plurality of tapered gears, form a coaxial tapered gear train 2, the tapered order gear of maximum diameter is fixedlyed connected with axle 1, and other then is connected with axle 1 by free wheel device.
Tapered gear train 1 of correct design and spur gear 4, require the number of teeth difference of each gear in the tapered gear train, tooth pitch is identical, each tooth of tapered gear and the teeth groove of spur gear 4 can mesh fully, and the engagement of the narrow position of the teeth groove of the tooth of spur gear 4 and tapered gear, make tapered gear train 2 each gear can with the transmission of spur gear normal engaged.
Requirement to free wheel device is short as far as possible from the process that surmounts wedging, and the time lag shared under the same rotating speed is short as far as possible.
When spur gear from a gear rotation of its engagement to the transient process of adjacent another gear engagement, arranged a period, and it can mesh simultaneously with two gears, because the number of teeth difference of two adjacent gear, need surmount mobile small gear by the effect of free wheel device, thereby the tooth that guarantees two adjacent gear is synchronous.When first cycle of the tooth engagement of the gearwheel of the teeth groove of spur gear 4 and adjacent tapered gear, overdrive clutch drives little tapered gear and is synchronized with the movement, the wedging of following half period free wheel device, and two adjacent tapered gear engagement spur gears move together.These two synchronous gears play the effect of driving force simultaneously, and gearwheel plays a major role, and small gear helps out.
For gear shift is carried out smoothly, synchronous with the tapered gear of spur gear engagement with the adjacent gear maintenance, the asynchronous effect (quickening not have influences) that mainly occurs in moment of inertia when slowing down.In order to eliminate this influence, bigger friction can be set between adjacent gear; With encircling be provided with enough big in the free wheel device, to reduce the rotary inertia of outer shroud; Free wheel device is set still keeps bigger friction ractor surmounting state; Deng.
Fig. 2 is illustrated in and is provided with synchronisation measures between gear.Because asynchronous generation is just arranged when slowing down, and gear down when slowing down, so be arranged in the moment of inertia effect under the bootom gear adjacent with carrier gear with carrier gear is close to, utilization being close to rub and reaching synchronous.Concrete grammar is, a short spiral chute 16 is set on axle, and ring is provided with a slide block 17 in the gear, and slide block 17 is engaged in 16, can slide in 16, thereby gear can have a limited axial displacement.Except the gear of maximum, other gear all similarly is provided with.When the shaft driven gear normal rotation and when quickening, slide block 17 is positioned at the rear portion of groove 16, when slowing down, the axial position of the carrier gear that is meshed with spur gear is constant, other gear surmounts rotation under the moment of inertia effect, because slide block and spiral fluted effect, each gear just moves axially to the same of prior setting when surmounting, bootom gear is arranged in the direction to carrier gear moves under the moment of inertia effect, utilizes the friction after being close between gear to reach synchronous.Scheme 2: can the self-shifting quasi-stepless speed changer
Fig. 3 is can the self-shifting quasi-stepless speed changer.Be engaged with an axially movable spur gear 5 between the driven tapered gear train that the tapered gear train of driving that input shaft 1 links to each other and output shaft 8 link to each other, moving by the auxiliary variable speed wheel 6 that links together with it of it constitutes a speed control system.Spur gear can axially move freely along 7, and the rotation of spur gear can drive axle 7 and rotate together, and it is constructed shown in the sectional view of Fig. 4.With parallel flywheels that link together 6 of spur gear 5 and thread spindle engagement, be coupled by permanent magnet between spur gear 5 and the flywheel 6, when flywheel 6 during, cause moving axially of middle straight gear, thereby cause speed change with respect to the rotated position of thread spindle.When uniform motion, spur gear 5 drives flywheel 6 run-in synchronisms by magnetic coupling, and spur gear 5 does not move axially, and speed changer is speed change not.When acceleration or retarded motion, flywheel 6 is asynchronous with spur gear 5 under the moment of inertia effect, and with the relative position change of axle 7, spur gear 5 moves axially.This direction that is designed to moment mobile phase balance that moves, master and slave gear ratio diminishes (driven gear diameter/driving gear diameter) during acceleration, otherwise becomes big, thereby reaches automatic speed-changing and torque-converting.Gear up during acceleration, gear down during deceleration.The tapered gear train structure of symmetry has been adopted in this design, has increased slewing range, and has helped steady transmission.Scheme 3: automatically controlled automatic quasi-stepless speed changer
Fig. 5 represents to reach automatic speed-changing and torque-converting by the axial motion of stepper motor 9 control middle straight gears.Can shorten gearshift procedure easily by automatically controlled, make speed changer carry out the transition to another gear fast from a gear.
Also can be by planetary pinion position arrangement speed changer, as breast wheel, three tapered gear trains are as the input wheels spur gear, and group is assisted out in three conducts, arranges in opposite directions each other.Can make transmission more steady like this, but increase manufacture difficulty.Scheme 4: quasi-stepless speed changer is applied to an example on the automobile automatically
Fig. 6 is that automatic transmission is used for an example on the automobile.Gearwheel 11 at the tapered wheels of output, it is lowest gear, design a clutch 10, be connected with brake petal, as long as depress brake petal, this clutch just separates, the transmission of this and other gear is irrelevant, does not influence the normal driving of other gear, but has arrived lowest gear, just play the effect of friction driving, be used for starting, reversing and utmost point low speed driving.
Manual gear operating handle 15 be provided with advance, reversing, three gears of neutral gear, usual position is in neutral gear, 14 is forward gears, 13 is reverse gear.The 12nd, output shaft.The ECU system can be according to the road conditions control step motor 9 that travels, and then the spur gear on the Control Shaft 7 moves, and reaches the speed change bending moment, makes system be in the output of best power coupling.
Claims (3)
1. be used to realize the device of speed change, it is characterized in that: have plural tapered gear to install on the axle (1) and form a coaxial gear train (2) by the diameter axial order, wherein has gear (4) engagement on a gear and another axle (3) at least with the transmission of realizable force, in the continuous rotation process of gear, gear (4) can from gear train (2) a gear engagement excessively to not interrupting the transmission of power with wherein another gear engagement.
2. device according to claim 1 is characterized in that: in the continuous rotation process of gear, gear (4) from a gear engagement of gear train (2) to the transitional processes of another gear engagement, wherein have a gear to surmount mobile.
3. device according to claim 1 is characterized in that: in the continuous rotation process of gear, gear (4) from a gear engagement of gear train (2) to another gear engagement the time, these two adjacent gears rotate synchronously in the gear train (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021345333A CN1474075A (en) | 2002-08-09 | 2002-08-09 | Quasi-stepless speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021345333A CN1474075A (en) | 2002-08-09 | 2002-08-09 | Quasi-stepless speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1474075A true CN1474075A (en) | 2004-02-11 |
Family
ID=34145838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021345333A Pending CN1474075A (en) | 2002-08-09 | 2002-08-09 | Quasi-stepless speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1474075A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356253A (en) * | 2009-03-16 | 2012-02-15 | Zf腓德烈斯哈芬股份公司 | Manual transmission |
| CN103899713A (en) * | 2014-04-08 | 2014-07-02 | 上海电机学院 | Wind turbine gearbox set, wind turbine speed change method and wind power generation system |
| CN105387150A (en) * | 2015-12-15 | 2016-03-09 | 宋柄松 | Cone tower sequence overrunning clutch speed changing mechanism |
| CN107401585A (en) * | 2016-05-20 | 2017-11-28 | 舒健平 | Gear and the compound buncher of tapper |
| CN108953201A (en) * | 2018-09-25 | 2018-12-07 | 江苏科创电器有限公司 | A kind of adjustable oscillating mechanism of fan speed and fan |
| CN109322975A (en) * | 2018-11-20 | 2019-02-12 | 付杰 | A kind of stepless speed change device by helical teeth round transformation |
| CN109372962A (en) * | 2018-12-17 | 2019-02-22 | 刘天军 | There is a grade CVT automatic gear-box |
| CN111677821A (en) * | 2020-06-22 | 2020-09-18 | 徐宇 | Gear drive stepless speed changer |
| CN112664396A (en) * | 2020-12-28 | 2021-04-16 | 诸暨和创磁电科技有限公司 | Wind driven generator capable of realizing stable power output based on double turnplates |
| CN112664398A (en) * | 2020-12-28 | 2021-04-16 | 诸暨和创磁电科技有限公司 | Wind driven generator for realizing stable power output based on cone pulley combination |
-
2002
- 2002-08-09 CN CNA021345333A patent/CN1474075A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356253A (en) * | 2009-03-16 | 2012-02-15 | Zf腓德烈斯哈芬股份公司 | Manual transmission |
| CN103899713A (en) * | 2014-04-08 | 2014-07-02 | 上海电机学院 | Wind turbine gearbox set, wind turbine speed change method and wind power generation system |
| CN105387150A (en) * | 2015-12-15 | 2016-03-09 | 宋柄松 | Cone tower sequence overrunning clutch speed changing mechanism |
| CN107401585A (en) * | 2016-05-20 | 2017-11-28 | 舒健平 | Gear and the compound buncher of tapper |
| CN108953201A (en) * | 2018-09-25 | 2018-12-07 | 江苏科创电器有限公司 | A kind of adjustable oscillating mechanism of fan speed and fan |
| CN109322975A (en) * | 2018-11-20 | 2019-02-12 | 付杰 | A kind of stepless speed change device by helical teeth round transformation |
| CN109372962A (en) * | 2018-12-17 | 2019-02-22 | 刘天军 | There is a grade CVT automatic gear-box |
| CN111677821A (en) * | 2020-06-22 | 2020-09-18 | 徐宇 | Gear drive stepless speed changer |
| CN112664396A (en) * | 2020-12-28 | 2021-04-16 | 诸暨和创磁电科技有限公司 | Wind driven generator capable of realizing stable power output based on double turnplates |
| CN112664398A (en) * | 2020-12-28 | 2021-04-16 | 诸暨和创磁电科技有限公司 | Wind driven generator for realizing stable power output based on cone pulley combination |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102628493B (en) | Automatic speed changer | |
| CN102128244B (en) | Infinitely variable transmission | |
| CN101713459B (en) | Double clutch type automatic gearbox | |
| CN202468867U (en) | Parallel planetary gear transmission twin-countershaft transmission drive axle | |
| CN201705861U (en) | Double-clutch automatic transmission | |
| CN113719592B (en) | Meshing method of movable-tooth gear and variable-diameter continuously variable transmission applying same | |
| CN201827306U (en) | Double-clutch type automatic transmission | |
| CN103277478A (en) | Combined-harvester four-gear gearbox assembly | |
| CN202597599U (en) | Automatic transmission | |
| CN1474075A (en) | Quasi-stepless speed changer | |
| CN111677821A (en) | Gear drive stepless speed changer | |
| CN201705865U (en) | Seven-speed double-clutch transmission | |
| CN2599318Y (en) | Power transfer hydraulic speed variator | |
| CN203239872U (en) | Combine-harvester four-gear transmission assembly | |
| CN202690908U (en) | Speed changer capable of pre-selecting gears | |
| CN105114555A (en) | Multi-gear clutch-free manual and automatic integrated one-way synchronous overdrive transmission | |
| CN2585780Y (en) | Automatic speed variator of motor vehicle | |
| CN2753924Y (en) | Uninterrupted power gear speed changer | |
| CN100451400C (en) | Uninterrupted power gear speed changer | |
| CN202746512U (en) | Continuous power stepless speed-changing transmission mechanism | |
| CN102777551B (en) | A kind of can the mechanical transmission of gear selecting in advance | |
| CN201502691U (en) | Double-clutch type automatic variable-speed device | |
| CN101655142A (en) | Multiple speed transmission utilizing co-planar gear sets | |
| CN201170303Y (en) | Pure gear type vehicle non-gear speed changing device | |
| CN2487591Y (en) | Small gear number multiple shifting gear handy variable speed gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Gang Document name: Notification before expiration of term |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Gang Document name: Deemed as a notice of withdrawal |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |