CN87100222A - Differential gear train torque converter - Google Patents
Differential gear train torque converter Download PDFInfo
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- CN87100222A CN87100222A CN 87100222 CN87100222A CN87100222A CN 87100222 A CN87100222 A CN 87100222A CN 87100222 CN87100222 CN 87100222 CN 87100222 A CN87100222 A CN 87100222A CN 87100222 A CN87100222 A CN 87100222A
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- gear train
- worm
- torque converter
- transcapsidation
- gear
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Abstract
Differential gear train torque converter turns round in its change that input power can remain unchanged in the scope, when outside carry when changing, it can produce and outer year torque coupled mutually.It is a kind of permanent power that torque and output speed are inversely proportional to of exporting, automatic stepless speed variator, be applicable to the transmission occasion that output speed and external load often change, the transmission occasion that often changes as automobile, motorcycle, tank, armored vehicle, tractor, internal combustion locomotive, boats and ships driving, engineering machinery etc. and all startings under load and load.
Description
The present invention is the mechanical device that is applied in the power transmission.
During the differential gear train torque converter transmission, turn round in the scope in its change, constant when input power, it can produce and the outer torque coupled mutually of carrying, and made output power invariable when changing in outer year.In fact it is a kind of automatic stepless speed variator that torque and output speed are inversely proportional to of exporting.Be applicable to the transmission occasion that output speed and extraneous load often change.
The present invention is with reference to red flag board car CA770 automatic transimission: torque converter function and making.Through preliminary search, the mechanical transmission aspect does not still have this thing both at home and abroad.About similar to the present invention, the torque converter in the hydraudynamic drive technology can be consulted the 110th page of " engineering machinery hydraulic and hydraudynamic drive " book volume two of writing in schools such as Jilin Industry University.This data is published by China Machine Press, China Machine Press's printing house printing.In July, 1979 Beijing front page, in July, 1979 Beijing first impression, standard book number 15033.4830.
Task of the present invention: can both reach permanent power transmission for making all vehicular traffics, tractor, tank, boats and ships driving, engineering machinery etc., improve Economy and power factor, thereby remedy and replace torque converter in this deficiency of using on the one hand and narrow limitation.
Differential gear train torque converter is by epicyclic gear train mechanism, and spiral motion transducer and freewheel and box body combinations form, and it belongs to mechanical force balance gear mechanism.
Fig. 1 is a kind of epicyclic gear train mechanism in the differential gear train torque converter.In this mechanism, central gear (2), gear ring (3) all are can be rotating around fixed axis OO.When central gear (2) rotated, planet wheel (1) around the axis revolution of oneself, turned round around fixed axis OO with tie-rod (4) again on the one hand on the other hand.In epicyclic gear train mechanism, three can both be around the rotating central gear of fixed axis OO (2), gear ring (3), and tie-rod (4) be referred to as three basic dirivig members of epicyclic gear train mechanism, and this three member moves all.If wherein central gear (2) initiatively, gear ring (3) is fixing, and tie-rod (4) is driven, and such epicyclic gear train mechanism driving is referred to as Gear Planet Transmission, and it has only one degree of freedom.If tie-rod (4) initiatively in three members, central gear (2) and driven, the such epicyclic gear train mechanism driving of gear ring (3) are referred to as differential drive, and it has two degrees of freedom.
Mechanism does differential drive when epicyclic gear train: during tie-rod (4) active, active force on the driving link tie-rod (4), it is equilibrium conditions by planet wheel (1), give two the driven member central gears in both sides (2) and gear ring (3) by planet wheel (1) mean allocation, so this box of tricks is an a kind of equilibrium of forces mechanism.
Fig. 2 is to be the spiral motion transducer that element is formed by worm gear, worm screw in the differential gear train torque converter.It is a kind of by about two numbers of teeth equate with modulus, worm gear that Hand of spiral is identical (5) and worm gear (7), and be listed on the same fixed axis OO, with same multi-start worm (6) engagement, be assembled in the transcapsidation (8) and the worm and gear of forming is paid driving mechanism.Two worm gears are input and output of mechanism among the figure, they any one can both make driving link or driven member.Wherein transcapsidation (8) is individual unfixed, and two ends are supported by bearing, makes it also can pay casing around the worm and gear that fixed axis OO rotates.It also is a stressed member in mechanism, can be used as the output of mechanism.
Obviously, this worm and gear is paid driving mechanism, its transport characteristics: three basic building blocks that can both rotate around fixed axis OO in the mechanism, when worm gear (5) initiatively, when worm gear (7) was driven, transcapsidation (8) was involved by worm screw (6), was clamped between the moving worm gear of two principals and subordinates.Active force on the driving link is directly by worm gear (5), worm screw (6), and the flank of tooth contact of worm gear (7) passes to driven member.Make mechanism become whole transmission.But in transcapsidation (8), be subjected to external force and do the time spent, transcapsidation (8) is axial to worm screw (6), just produce one with worm shaft to the opposite axial reaction at support of force direction, make the normal force on the driving link worm gear (5), in worm and gear engagement stressed after, be divided into three component: its radial force and relative counteracting of worm screw (6) radial force.Garden week power promptly is transformed into the axial force of worm screw (6), with the axial reaction at support coupling of transcapsidation (8) generation.Axial force then makes worm screw (6) produce garden Zhou Yundong, (pay in the transmission with worm screw (6) worm gear (7) engaged worm, the normal force of driving link worm screw (6), also can resolve into three component) make worm screw (6) in the Zhou Yundong of garden, also produce responsive to axial force in the garden of driven member worm gear (7) on week, carry coupling with outer.
Be not difficult to find out the spiral motion transducer, when transcapsidation (8) was subjected to the external force effect to axial reaction at support of worm screw (6) generation, the load on the driven member worm gear (7) just can be driven by worm screw (6) by driving link worm gear (5).If the torque on the driving link is greater than the torque on the driven member, or input power is greater than output power, (the suffered external force of transcapsidation (8) this moment, also form a countertorque to driving link is corresponding), at this moment after the input power on the driving link satisfies driven member output needs, remainingly act directly in the transcapsidation (8) with regard to fractional horse-power, make the spiral motion transducer under the invariable situation of input power, moment of face in driven member worm gear (7) and the transcapsidation (8) can be driven respectively by driving link worm gear (5) simultaneously.
Fig. 3 is the spiral motion transducer, the motor-driven signal schematic diagram of differential gear train torque converter that epicyclic gear train mechanism and freewheel and casing (12) are formed.Shown in the figure, transcapsidation in the spiral motion transducer (8) and worm gear (7), respectively with epicyclic gear train mechanism in gear ring (3) and central gear (2) link.Worm gear in the spiral motion transducer (5) is the driving link of differential gear train torque converter.Tie-rod in the epicyclic gear train mechanism (4) is the driven member of differential gear train torque converter.Freewheel is to be used for placing restrictions on the device that transcapsidation (8) can only be done unidirectional movement.Its active star-wheel (9) is fixed as one with transcapsidation (8), is fixed as one from moving sleeve (10) and differential gear train torque converter casing (12).Star-wheel (9) can be subjected to the effect of driving link worm gear (5) with transcapsidation (8), does unidirectional movement, is subjected to roller (11) wedging during counter-rotating on sleeve (10), and transcapsidation (8) is maintained static.
According to spiral motion transducer and epicyclic gear train motion of mechanism characteristics, these two kinds of mechanisms: can be used for the fractional horse-power driving mechanism to the spiral motion transducer, utilize its input power, resolve into two output powers with driving link worm gear (5).And epicyclic gear train mechanism is used for the mechanism of resultant motion, utilize two outputs that it resolves into the spiral motion transducer, as oneself input by driven member tie-rod (4) synthetic back output.As seen, the characteristics of these two kinds of mechanisms: the former is with the direct active force on the driving link worm gear (5) or these two the unequal power of axial force after decomposing, and carries out the fractional horse-power transmission, and it is the mechanism of a force unbalance.The latter is with planet wheel (1) equilibrium conditions, the balanced controls that distribution power equates.So differential gear train motion of mechanism characteristic, be that the individual character by these two kinds of mechanisms unites two into one.So in same mechanism, driving link worm gear (5) decomposes and the power that is distributed on two connection pieces differs in size, and the external force on the driven member tie-rod (4), return the power of feedback on two connection pieces by planet wheel (1) and equate, therefore two connection pieces must can not move variation because of stressed the grade in mechanism's equilibrium of forces.
Starting period, outer carrying by static setting in motion, the starting torque maximum, driven member tie-rod (4) returns the external force maximum of feedback on two connection pieces.When external force and driving link worm gear (5) the active force coupling of feedback on two connection pieces, wherein transcapsidation (8) is returned the external force of feedback greater than the active force on the worm gear (5), and stressed transcapsidation afterwards (8) will backward rotation.Because the freewheel effect, so be fixed on the casing (12) by wedging during transcapsidation (8) counter-rotating, under casing (12) supporting, obtain reaction force, make balance of mechanism.Force driving link worm gear (5) to decompose simultaneously and produce axial force, pass to worm gear (7) by worm screw (6).Be fixed because of transcapsidation (8) this moment, the slip maximum of transcapsidation (8) and worm gear (5), so that epicyclic gear train mechanism is a gear ring (3) is fixing, central gear (2) initiatively, tie-rod (4) is from the transmission of action planetary reduction gear.Differential gear train torque converter speed ratio maximum.
After the starting, outer carrying increases with rotary inertia, acceleration on the driven member is by accelerating slowly, starting torque reduces gradually, the external force of respective feedback on two connection pieces also reduces, when being reduced to, starting torque returns feedback in two external force that link, when being enough to make active force on the driving link worm gear (5) can directly drive transcapsidation (8) in two connection pieces to rotate, the spiral motion transducer just begins the transmission of differential fractional horse-power, it acts directly on driving link part power in the transcapsidation (8) on the one hand, make freewheel throw off transcapsidation (8) automatically and rotate, on the other hand; All the other horsepower, the absolute value of transcapsidation just (8) and worm gear (5) speed discrepancy, still distribute to worm gear (7) by worm screw (6), power on transcapsidation then (8) and the worm gear (7), Gear Planet Transmission by epicyclic gear train mechanism converts differential drive to, and with gear ring (3), central gear (2) initiatively, tie-rod (4) is driven to synthesize an output, and the differential gear train torque converter speed ratio is reduced.
Along with the outer starting torque of carrying continues to reduce, return the external force of feedback on two connection pieces and continue simultaneously to reduce, the transmission of spiral motion transducer differential fractional horse-power, the rotating speed of transcapsidation (8) is higher, littler with the speed discrepancy of worm gear (5), so the differential gear train torque converter speed ratio is also little.Undoubtedly, turn round in the scope in the differential gear train torque converter change, input power on mechanism's driving link is invariable, carry to change outside being subjected to and return the external force of feedback on two connection pieces, the external force that outer year big transcapsidation (8) is subjected to is also big, and the axial reaction at support that worm screw (6) is produced is also big, during the fractional horse-power transmission, be subjected to the driving link active force to drive difficulty, the power of getting is less.Instead then, carry for a short time outward, the external force that transcapsidation (8) is subjected to is also little, and the axial reaction at support that worm screw (6) is produced is also little, and during the fractional horse-power transmission, it is higher to be subjected to the driving link active force to drive rotating speed, can get bigger power.Obviously, in differential gear train torque converter mechanism, the transmission of spiral motion transducer fractional horse-power, the power that driving link worm gear (5) is distributed to two connection pieces carries size conversion mutually according to outer, the moment of torsion that corresponding torque converter mechanism produces can with the outer coupling of carrying.And velocity ratio returns when the external force of feedback on two connection pieces is stablized and could determine only when mechanism's input power and output power balance.Or outer carrying increases with rotary inertia, and starting torque is reduced to and returns feedback and go up the axial reaction at support that worm screw (6) is produced in transcapsidation (8), little differential gear train torque converter mechanism is an integral body to not making driving link worm gear (5) resolve into three power, and input is 1 with the output velocity ratio.Be understood that differential gear train torque converter is a kind of permanent power driving mechanism, it can not only be with the variation of payload.Automatically conversion forms of motion, and can change the output torque with payload and realize automatic stepless speed change.
Torque converter and differential gear train torque converter all are permanent power transmission devices, can amplify the moment of torsion of initiating machine.Their difference place, torque converter is to be transmission medium with liquid, liquid flow impact power is the driving mechanism of transmitted power, so the contradiction that has flow and flow velocity and volume size between the coefficient is turned round in its transmission efficiency and change, make its change turn round scope and placed restrictions on, can not be too big, again because of hydraudynamic drive through transformation of energy, power will be subjected to loss, so hydraudynamic drive is not as good as the machinery driving efficiency height.
And differential gear train torque converter is a kind of gear drive, and its deceleration multiple and moment of torsion magnification factor are approaching, so transmission efficiency is higher, add Gear Planet Transmission and have bigger velocity ratio, thereby scope is turned round in the change that can enlarge differential gear train torque converter.
Structure and manufacture view, the manufacturing requirement of hydraulic transmission component and cost are all than machinery part height in addition, and a series of structures such as the heat radiation of torque converter, compensation, control are less than differential gear train torque converter mechanism compactness, never there is the variation that causes service behaviour because of reasons such as sealing and leakages in differential gear train torque converter in the use, and it is stronger than hydraudynamic drive to put into practice mechanically operated as can be known reliability.
Differential gear train torque converter mechanism is the same with the retarder and the speed changer of conventional machinery ordinary transmission, it all is driving mechanism independently, therefore implement the present invention and can directly use above working principle, according to purposes and watt level or by the performance requirement of match mechanism device and facility and by holding position, be dimensioned to each serial stepless speed variator.
Claims (3)
1, a kind of mechanical differential gear train torque converter of exporting the permanent power automatic stepless speed change that torque and output speed be inversely proportional to is made up of with freewheel and casing spiral motion transducer, epicyclic gear train mechanism.
Its structure characteristic: transcapsidation in the spiral motion transducer (8) and worm gear (7) respectively with epicyclic gear train mechanism in gear ring (3) and central gear (2) link.
Freewheel is in differential gear train torque converter, its star-wheel (9) is fixing with transcapsidation (8), sleeve (10) is fixing with differential gear train torque converter casing (12), be used for placing restrictions on transcapsidation (8) by roller (11) between star-wheel (9) and the sleeve (10) and do unidirectional movement, during transmission, the worm gear of spiral motion transducer (5) is a driving link in the differential gear train torque converter.Tie-rod in the epicyclic gear train mechanism (4) is a driven member.
Differential gear train torque converter is turned round in the scope in its change, and input power can remain unchanged, when outside carry when changing, it can produce and outer year torque coupled mutually.The realization automatic stepless speed change.
2, according to claim 1, spiral motion transducer in the differential gear train torque converter is to be paid by worm and gear, or spiral gear screw mechanism such as is paid and is formed, be when moving by helix element, garden Zhou Li and the axial force of utilizing its flank of tooth normal force to be resolved into are decomposed motion by two outputs of can be in same plane rotating in the same way and are realized the fractional horse-power transmission.
It is equated that by two numbers of teeth and modulus the worm gear that Hand of spiral is identical (5) worm gear (7) is formed with a worm screw (6) and transcapsidation (8).
Its structure characteristic: two worm gears also are listed on the same fixed axis OO, with same multi-start worm (6)
, be assembled in the transcapsidation (8) and form.Two worm gears are input and output of mechanism, can both make driving link or driven member for any one, wherein transcapsidation (8) is individual unfixed, two ends are supported by bearing, make it also can pay casing around the worm and gear that fixed axis OO rotates, be called three basic dirivig members of spiral motion transducer at mechanism's two worm gears that neutralize, can be used as driven member output.
3, according to claim 1, the epicyclic gear train mechanism in the differential gear train torque converter can be equated to form with unequal box of tricks by prior art planet wheel two heel teeth numbers.Freewheel can be made up of all kinds of mono-directional overrun clutchs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87100222 CN87100222A (en) | 1987-02-07 | 1987-02-07 | Differential gear train torque converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87100222 CN87100222A (en) | 1987-02-07 | 1987-02-07 | Differential gear train torque converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87100222A true CN87100222A (en) | 1988-08-17 |
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ID=4812765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87100222 Pending CN87100222A (en) | 1987-02-07 | 1987-02-07 | Differential gear train torque converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87100222A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728367A (en) * | 2015-01-15 | 2015-06-24 | 杨晋杰 | Continuously variable transmission used for front drive sedan |
-
1987
- 1987-02-07 CN CN 87100222 patent/CN87100222A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728367A (en) * | 2015-01-15 | 2015-06-24 | 杨晋杰 | Continuously variable transmission used for front drive sedan |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |