CN1111328A - Automatic stepless speed variator - Google Patents
Automatic stepless speed variator Download PDFInfo
- Publication number
- CN1111328A CN1111328A CN 94107060 CN94107060A CN1111328A CN 1111328 A CN1111328 A CN 1111328A CN 94107060 CN94107060 CN 94107060 CN 94107060 A CN94107060 A CN 94107060A CN 1111328 A CN1111328 A CN 1111328A
- Authority
- CN
- China
- Prior art keywords
- input shaft
- contained
- output shaft
- speed
- friction wheel
- 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.)
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Abstract
Technologically, the automatic stepless speed variator features its branching driving shaft driving the stepless speed varying device and the power transmitting device simultaneously and its differential mechanism merging output. Through the branching and merging, the transmitted power is increased and the output shaft obtains steplessly varying rotation speed. The input shaft and the output shaft have linkage-connected cam speed-varying mechanisms installed separately and by the balance between engine torque and output shaft load, the automatic control for start, speed increase, speed decrease, advance, back and idler of automobile is realized.
Description
The present invention relates to the variation of a kind of automobile load in the process of moving, its travelling speed is also being followed the speed change gear that changes.
Concerning existing automotive transmission, all be step change, in gearshift procedure,, quicken and slow down to come all soon especially, thereby bring obstacle for the travelling comfort aspect of automobile because the driving force supply is discontinuous; Because slewing range is narrower, automobile fuel ecomomy is not high simultaneously.Control mainly is manual control, hydraulic pressure automatic speed changing or electro-hydraulic automatic speed changing; Manually control is complete handles by rule of thumb by the driver, requires the driver to have than masterful technique, thereby results in hand cramps for the use of automobile; Hydraulic pressure automatic speed changing or electro-hydraulic automatic speed changing realize by accelerator pedal and computer, the bigger driving force of comparatively complexity, and difficult acquisition.
According to Japan Patent: automobile machinery infinitely variable transmission (92 years the 12nd phases of world inventions), be characterized in realizing stepless change with the friction ring of polishing and the friction cone pulley of variable transmission radius, increase and decrease proportional oil pressure balance with cam mechanism and engine revolution and realize automatic control, utilize the clutch of two groups of gears to realize advancing of automobile then and move backward, utilize the locked of a friction wheel and throw off and realize neutral gear.For this stepless speed variator: when engine-driving is travelled, can realize automatic stepless speed change, but advance with the conversion of reversing and the transfer process of engine-driving and neutral gear in also exist gear from close with the locked of train and open problem, make the automobile can not be continuous fully in the variation of running process speed, owing to adopt friction wheel to come transferring power fully, transmitted power is less.Automatically control partly, to automobile under steam the conversion and the reversing of engine-driving and neutral gear realize comparatively complexity by this kind method, must must have other auxiliary device to realize; To get off through the balance of circulation ability repeatedly from speedup to deceleration with from decelerating to speedup simultaneously.
The objective of the invention is to make the transmitted power of automatic stepless speed variator to increase, structure is simpler, from starting, speedup, slow down, advance, reversing, emptying can both change reposefully continuously automatically.
The present invention is achieved in that to improving the transmitted power of stepless speed variator, make engine-driving and emptying simultaneously and advance and move backward and to change on continuous stepless ground, the shunting of employing main shaft, mainly play the stepless change effect on one side, play the power transfer function on one side, and then utilize box of tricks that the result of both sides shunting is collaborated output.In the shunting process, pass through stepless speed changes devices, the rotating speed that planet carrier is infinitely changed, in velocity variations, the moment of torsion of both sides shunting also changes, synthetic by box of tricks, the rotating speed and the corresponding with it moment of torsion that can infinitely be changed at output terminal are down to inverted speed and neutral gear.In the stepless change process, owing to do not have the locked of the clutch of gear and friction wheel and open problem, be that speed by planet carrier infinitely changes and realizes.Thereby speed changer in vehicle starting, speedup, slow down, advance, can both change continuously reposefully in the reversing, emptying overall process.
To automatic control partly, at input shaft and output shaft cam mechanism has been installed respectively, and it is linked up with connection rod of gear shifting, utilize the increase and decrease of engine torque and output shaft load and mutually balance realize starting, speedup, deceleration and transfer to by gravity from engine-driving and to travel voluntarily and transfer engine-driven automatic control to from travelling voluntarily by gravity.Simultaneously connection rod of gear shifting is stretched out outside the speed changer, be connected the starting of may command motor and flame-out with engine air throttle, throttle and control wiring, the hand gear connecting rod makes it to be in the other end, will realize the automatic control of reversing.
Fig. 1 is the Transmitted chains figure of stepless speed variator;
Fig. 2 is the tectonic maps of automatic stepless speed variator.
Below in conjunction with figure most preferred embodiment of the present invention is described in detail.
As seen from Figure 1, this Transmitted chains by input shaft 8, output shaft 9, decide friction wheel 7, the change friction wheel 6 of variable transmission radius, the planet carrier H of friction ring 5, sun gear 2, bevel gear 1, band Internal bevel gear, planetary pinion 3 and internal gear 4 are formed.Engine-driving input shaft 8 rotates, the input shaft shunting, on one side rotating speed is passed to planet carrier H by decide friction wheel 7, change friction wheel 6, gear 1; Rotating speed is passed to sun gear 2 on one side.The synthetic n that obtains by box of tricks
Go outCan infinitely change owing to become the radius of gyration of friction wheel 6, thereby the rotating speed of planet carrier H also infinitely changes the rotating speed that can obtain stepless variation of forward and reverse stepless variation at output shaft that synthesizes by box of tricks.Its output shaft rotation speed n
Go outWith input shaft rotating speed n
1With change friction wheel transmission radius R
BecomeThe pass be:
n
Fixed=n
1; n
2=n
1
n
H=(R
FixedZ
1)/(R
BecomeZ
H) n
1
(n
4-n
H)/(n
2-n
H) =(-1)
1· (Z
2)/(Z
4)
n
Go out=n
4=(((Z
2+ Z4) R decides Z1)/(Z
4R
BecomeZ
H)-(Z2)/(Z4)) n
1
During the operation of motor driving automobile, the output shaft rotating speed
n
Go out={ ((Z
2+ Z
4) R
FixedZ1)/(Z
4R becomes ZH)-(Z
2)/(Z
4)) n
1
R
Become=((Z
2+ Z
4) R
FixedZ
1)/(Z
4Z
H) time, n
Go out=0, engine rotation was exported and was changeed this moment, was equivalent to vehicle starting.
Work as R
Become((Z
2+ Z
4) R
FixedZ
1)/(Z
4Z
H) time, n
Go out＞0, this moment, the output shaft rotating speed was identical with input shaft rotating speed direction, was equivalent to automobile and advanced, and the slewing range that automobile advances is:
0～((Z
2+ Z
4) R
FixedZ
1)/(Z
4R
Become minZ
H)-(Z
2)/(Z
4)
Work as R
Become＞((Z
2+ Z
4) R decides Z1)/(Z
4ZH) time, n
Go out＜0, this moment, the output shaft rotating speed was opposite with input shaft rotating speed direction, was equivalent to rolling-back of car, and the slewing range of rolling-back of car is:
0～((Z
2+ Z
4) R
FixedZ
1)/(Z
4R
Become maxZ
H)-(Z
2)/(Z
4)
Conversely, n
1=(Z
4R
BecomeZ
H)/((Z
2+ Z
4) R
FixedZ
1-Z
2R
BecomeZ
H) n
Go out
Automobile in the process of advancing, i.e. R
Become＜((Z
2+ Z
4) R
FixedZ
1)/(Z
4Z
H), when R becomes near zero the time n
1Also near zero, this moment, the rotating speed of output shaft was less to the input shaft influence, was equivalent to emptying in the process of moving.
R
BecomeMore near ((Z
2+ Z
4) R
FixedZ
1)/(Z
4Z
H), n
Go outTo n
1Influence greatly more, be equivalent to promptly in the vehicle traveling process that brake is bad grade controls the speed of a motor vehicle by robbing, particularly automobile is slack.R
Become=((Z
2+ Z
4) R
FixedZ
1)/(Z
4Z
H), it is safer to be equivalent to be held in high range position behind the parking of automobile.
Automobile in reversing process, i.e. R change＞((Z
2+ Z
4) R
FixedZ
1)/(Z
4Z
H), when R becomes big more, n
1More little, but the R change can not be too big, can emptying (be n fully for making automobile also in reversing
1=0), at change friction wheel low order end one friction ring 5 is set, this friction ring is enclosed within on the axle that becomes friction wheel 6, can on axle, freely rotate, for making energy smooth-going ground transition in the speed-change process, the tapering of this friction ring is identical with change friction wheel 6, and its end diameter equals to become the Outside diameter of friction wheel, when deciding friction ring and sliding into rightmost and this speed change loop contacts, N
HFor arbitrarily, so n
Go outTo n
1Influence is little, is equivalent to emptying.
Excursion by above this stepless speed variator of analysis depends on R
BecomeThe size of excursion and R
Fixed, Z
1, Z
H, Z
2, Z
4Selection, its percentage speed variation depends on the vertebra degree that becomes friction wheel 6, if R
Become, Z
1, Z
H, Z
2, Z
4Select properly, can satisfy the usage requirement of automobile fully, and make the volume of speed changer less.
Annotate: Z
1, Z
H, Z
2, Z
4The number of teeth of-gear 1, planet carrier gear H, sun gear 2, internal gear 4.
R
Fixed-Ding the transmission radius of friction wheel 7;
R
BecomeThe transmission radius of-change friction wheel 6
n
1, n
H, n
2, n
4, n
Go outThe rotating speed of-input shaft 8, planet carrier H, sun gear 2, internal gear 4, output shaft 9.
R
Become min, R
Become maxThe minimum and the maximum transmission radius of-change friction wheel 6.
See Fig. 2, the present invention is by housing 15, input shaft 1, input shaft speed change ring reaches decides friction wheel 2, input shaft shunting support 4, the change friction wheel 6 of variable transmission radius, become friction wheel spring bearer plate 5 and 14, become friction ring 7, become friction wheel transmission bracket 8, outer vertebra gear 10, interior vertebra gear and planet carrier 11, internal gear 9, planetary pinion 12, sun gear 13, input shaft and output shaft speed change fork 16 and 23, gear shift lever spring briquetting 17,21, pressure spring 18,19,20,22, connection rod of gear shifting 24, output shaft speed change ring 25, output shaft speed change support 26, output shaft 28, roller 3 and compositions such as 27.
In this structure: input shaft support 4 adopts the triangle key connecting with main shaft 1, and sun gear 13 adopts standard key to connect with main shaft 1, output shaft with output shaft support 26.Output shaft speed change ring 25 adopts splined with internal gear 9, but and move left and right.Input shaft speed change ring set on input shaft 1, can be on input shaft move left and right; Input shaft and output shaft support partly are being equipped with roller 3 and 27 with the speed change loop contacts, the speed change ring contacts with roller partly and makes the curve inclined-plane according to automobile running condition, for increasing frictional force, decide friction wheel and partly adopt polishing treatment with contacting of friction wheel 6 of change, add compression spring 19 and 22 and spring bearer plate 5 and 14 at the two ends that become friction wheel, to increase the positive pressure that rubs.For making reversing that neutral position also be arranged, friction ring 7 is set is enclosed within on the axle that becomes friction wheel 6, can on axle, rotate arbitrarily; Bevel gear 10 is adopted splined with the axle that becomes friction wheel 6; At differential partly, Internal bevel gear is done with planet carrier 11 and is in the same place; For planetary pinion can be meshed well with sun gear 13, internal gear 9, the planetary pinion rotating shaft can move radially along planet carrier; Be to increase the rigidity of output shaft and input shaft, the support 8 that becomes friction wheel 6 is screwed on housing 15, and input shaft 1 is enclosed within on the output shaft 28, and two speed change forks 16 and 23 are enclosed within on the connecting rod 24, for ease of regulating, can move on connecting rod, lock with fastening screw trip bolt; After automobile was stopped, it (was R that the speed change ring can be got back to zero-bit
Become=((Z
2+ Z
4) R
FixedZ
1)/(Z
4Z
H)), make the speed change ring change engine-driving over to simultaneously from emptying, when engine start, do not make the output shaft rotating speed rise too soon, be provided with pressure spring 18 and 20, come the pretightening force of Regulation spring with briquetting 17 and 21; Advance and move backward and control the speed of a motor vehicle in case of necessity for ease of manual Control of Automobile, speed change lever stretches out outside the housing, can with connections such as air throttle of car, control wiring.
When automobile advances, manually control speed change lever 24 and make it to get final product partially by zero-bit.Behind the engine start, drive input shaft 1 rotation, input shaft shunting drive sun gear 13 and input shaft shunting support 4 and rotate.Input shaft shunting support 4 drives input shaft speed change ring and decides friction wheel 2 and rotate, and decides friction wheel 2 drives change friction wheel 6 and rotates, and drives planet carrier 11 then and rotates.By synthesizing of box of tricks obtaining turning to identical rotating speed with input shaft 1 on output shaft speed change ring 25, when just beginning to rotate, the rotating speed of output is zero.Because input shaft shunting support 4 is when driving 2 rotations of input shaft speed change ring, speed change ring pressure spring 20 slowly is moved to the left, the output shaft rotating speed begins slowly to increase by zero, when input shaft speed change ring is subjected to input shaft support thrust and the restoring force of spring 20 and output shaft speed change ring 25 when being subjected to the right thrust-balancing of output shaft support 27 left, two speed change rings are slack, and the output shaft stabilization of speed is got off.When the load reduction needs speedup, because promoting output shaft speed change ring 25 power to the right is the component of load, after it reduces, owing to be subjected to force unbalance, input shaft shunting support 4 drives input shaft speed change ring 2 again and is moved to the left, the rotating speed of output shaft obtains increasing like this, up under balance under the new load.Increase in load, when needing reduction of speed, because the power that output shaft speed change ring is subjected to the right increases, making its pulling speed change lever 24 is that input shaft speed change ring 2 moves right, and the output shaft rotating speed reduces, until under balance under the new condition.When automobile travels by gravity (emptying), because output shaft support 26 drives output shaft speed change ring 25 conversely and rotates, because the difference on its inclined-plane, the thrust that output shaft speed change ring 25 is subjected to left, this thrust is identical with the thrust direction that input shaft speed change ring 2 is subjected to, very fast pressure spring 20 promotes input shaft speed change ring 2 and is moved to the left, up to the emptying position.When transferring to by engine-driving, come return by the restoring force of pressure spring 20 by travelling by gravity.When automobile is slack,, promotes speed change ring 2 and 25 by spring 20 and get back to zero-bit because the power that two speed change rings are subjected to is zero.When automobile need be moveed backward, connection rod of gear shifting moved to the right from zero-bit get final product.This moment, the inclined-plane on two transmission bracket and the two speed change ring left sides contact, and it is identical that drive path and transmission principle and top automobile advance, and was the stressed with top opposite of two speed change rings, and speed change ring output shaft reverse speed more to the right is high more, and at this moment spring 18 works.
The speed change lever 24 of speed changer is connected with engine throttle, closure and control wiring, through other means, the startup of may command motor and flame-out, the aperture of closure, the increase and decrease of throttle, so not only realize the automatic control of speed change, and be convenient to the automatic control of automobile.
Claims (4)
1, a kind of automatic stepless speed variator, comprise that housing (15), input shaft (1), an end are enclosed within the output shaft (28) on the input shaft (1), be contained in the support (4) on the input shaft (1), be contained in the roller (3) that input shaft support (4) is gone up and the cam path of input shaft speed change ring (2) meshes, be contained in the change friction wheel (6) on the support (8); It is characterized in that being contained in input shaft (1) but go up move left and right and respectively with roller (3) with become and advance having that friction wheel (6) meshes, reversing, the input shaft speed change ring of emptying cam path is promptly decided friction wheel (2), be contained in input shaft (1) and go up and be fixed on the support (8) of the change friction wheel (6) on the housing (15), be contained in the axle that becomes friction wheel (6) and go up friction ring (7) free to rotate, be contained in the outer bevel gear (10) that becomes on friction wheel (6) axle, being contained in the spring bearer plate (5) and (14) that are positioned at change friction wheel (6) two ends on the input shaft (1) is contained between support (4) and the pressing plate (5) and pressure spring (19) and (22) between planet carrier (11) and the pressing plate (14), be contained in input shaft (1) last and the Internal bevel gear of band and the planet carrier (11) of outer bevel gear (10) engagement, be contained in sun gear (13) and internal gear (9) on the input shaft (1), the planetary pinion that is meshing the centre (12), be contained in internal gear (9) but go up move left and right and having of rotating together advances, reversing, the output shaft speed change ring (25) of emptying cam path, be contained in the output shaft support (26) that output shaft (28) is gone up and rotated together, be contained in the roller (27) that output shaft support (26) is gone up and output shaft speed change ring (25) meshes, be contained in housing (15) but on an end stretch out the connection rod of gear shifting (24) of the outer and move left and right of housing, be contained in speed change fork (16) and (23) that connection rod of gear shifting (24) two ends connect with input shaft speed change ring (2) and output shaft speed change ring (25), and the pressure spring (18) and (20) that are contained in connecting rod (24) two ends, play contractive pressure piece (17) and (21).
2, according to the described automatic stepless speed variator of claim 1, it is characterized in that: input shaft (1) shunting, driving input shaft support (4) and sun gear (13) simultaneously rotates, input shaft support (4) drives fixed friction (2) on one side and rotates, by changing the transmission radius that becomes friction wheel (6), make the planet carrier (11) of being with Internal bevel gear obtain the rotating speed of stepless variation; After utilize planetary pinion (12), internal gear (9) that the rotating speed and the moment of torsion of planet carrier (11) and sun gear (13) is synthetic, make output shaft (28) obtain turning to identical, on the contrary or the infinitely continually varying rotating speed that is independent of each other with input shaft (1).
3, according to claim 1 and 2 described automatic stepless speed variators, it is characterized in that on input shaft (1) and output shaft (28), speed change ring (2) and (25) being installed respectively, and with connection rod of gear shifting (24) and fork (16), (23) it is linked up, utilize the input torque of input shaft (1) and the load increase and decrease and the spring (18) of output shaft (28), (20) restoring force three's balance realizes starting, speedup, slow down, can make speed change ring (2) and (25) get back to the automatic control in home position after conversion between emptying and the engine-driving and the parking; Hand gear connecting rod (24) makes it to be in the other end will realize the counter-rotational automatic control of output shaft (28).
4,, it is characterized in that deciding friction wheel (2) and be enclosed within the friction ring (7) that becomes on friction wheel (6) axle contacting and realizing the emptying of moveing backward according to claim 1 and 2 described automatic stepless speed variators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94107060 CN1111328A (en) | 1994-06-14 | 1994-06-14 | Automatic stepless speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94107060 CN1111328A (en) | 1994-06-14 | 1994-06-14 | Automatic stepless speed variator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1111328A true CN1111328A (en) | 1995-11-08 |
Family
ID=5032791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94107060 Pending CN1111328A (en) | 1994-06-14 | 1994-06-14 | Automatic stepless speed variator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1111328A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101198515B (en) * | 2005-06-14 | 2010-08-25 | 金铉秀 | Continuously variable transmission |
| CN101818796A (en) * | 2009-02-03 | 2010-09-01 | 福特环球技术公司 | The infinitely variable speed transmission that has offset output shaft |
-
1994
- 1994-06-14 CN CN 94107060 patent/CN1111328A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101198515B (en) * | 2005-06-14 | 2010-08-25 | 金铉秀 | Continuously variable transmission |
| CN101818796A (en) * | 2009-02-03 | 2010-09-01 | 福特环球技术公司 | The infinitely variable speed transmission that has offset output shaft |
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |