CN102734391B - Mechanical torque converter - Google Patents
Mechanical torque converter Download PDFInfo
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- CN102734391B CN102734391B CN201210187140.5A CN201210187140A CN102734391B CN 102734391 B CN102734391 B CN 102734391B CN 201210187140 A CN201210187140 A CN 201210187140A CN 102734391 B CN102734391 B CN 102734391B
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- brake drum
- wheel carrier
- planetary wheel
- planet gear
- torque converter
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Abstract
The invention discloses a kind of mechanical torque converter, it comprises an input bevel gear, an output bevel gear wheel, a break, a planetary wheel carrier, multiple bevel planet gear and bevel planet gear axle; Described multiple bevel planet gear, respectively by bevel planet gear axle, the radial pivot along planetary wheel carrier is fixed on planetary wheel carrier outer rim; Described input bevel gear, engages with described multiple bevel planet gear in the side of described planetary wheel carrier; Described output bevel gear wheel, engages with described multiple bevel planet gear at the opposite side of described planetary wheel carrier; Described input bevel gear is identical with described output bevel gear tooth number; Described break, is used for limiting the rotation of planetary wheel carrier.Mechanical torque converter of the present invention, can be applied to automatic transmission, and transmission efficiency is high, compact structure, easy disassembling, easy to maintenance.
Description
Technical field
The present invention relates to automobile-used machinery, particularly a kind of mechanical torque converter, this kind of mechanical torque converter can be applied to automatic transmission.
Background technique
The automobile of automatic catch is not owing to having clutch between motor and automatic transmission, and the connection between them normally realizes by fluid torque converter.Rotating speed and moment of torsion are transmitted in the effect one of fluid torque converter, two be make between motor and automatic transmission be connected to become nonrigid to facilitate automatic transmission self shifter.
After engine power exports, drive pump impeller, pump impeller stirs the automatic transmission fluid (ATF) in fluid torque converter, drive turbine rotation, ATF is the action of a circulation in converter cover, and due to centrifugal force when pump impeller rotates, ATF can under the effect of pump impeller, get rid of laterally, rush at the turbine in front, then flow to shaft core position, get back to pump impeller side, the circulation so gone round and begun again, is transmitted to the turbine be connected with gear-box by power.
Guide wheel is the parts be present between pump impeller and turbine, for ATF liquid flow path direction in adjustment housings, prevents ATF from impacting on the contrary mutually returning pump impeller and pump impeller sense of rotation through turbine recirculation.Pump impeller and secondary speed difference larger time, the moment of torsion of Power output has also become greatly, the suitable stepless speed variator of fluid torque converter now, and promote moment of torsion by speed discrepancy, now guide wheel is in stationary state, refluxes in order to regulate ATF; And when speed discrepancy reduces, when the coupling of turbine pump impeller or locking, moment of torsion is close to equity, without the need to increasing square, guide wheel, with pump impeller and turbine rotating in same direction, avoids self stirring ATF, causes the loss of power.
Fluid torque converter, liquid promotes turbine rotation from pump impeller with high speed, liquid stream also impacts guide wheel simultaneously, output torque is made to be greater than input torque, increasing can be realized by hydraulic moment changeable to turn round and make automobile from static to gentle start during low speed, and in accelerating process, during larger Power output, also can play the effect increasing moment of torsion.
Although fluid torque converter can realize increasing and turn round effect, there is following shortcoming:
1. transmission efficiency is low, and kinetic equation loss is more.Fluid torque converter carrys out transmitting torque by liquid stream, and liquid spreads the large energy of torque delivery loss, and therefore the transmission efficiency of fluid torque converter is low.
2. radial dimension is larger.In order to meet high-power transmission requirement, the usual radial dimension of fluid torque converter is comparatively large, is unfavorable for the lightweight and the miniaturization production that realize torque-converters like this.
3. inconvenient maintenance, maintenance cost is high.Fluid torque converter is an entirety, non-dismountable.Need during maintenance to cut with Special Equipment, and need to carry out high-precision location and welding after maintenance, technological requirement is very high, and difficulty is large, and maintenance cost is high.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of mechanical torque converter, can be applied to automatic transmission, and transmission efficiency is high, compact structure, easy disassembling, easy to maintenance.
For solving the problems of the technologies described above, the invention provides a kind of mechanical torque converter, it comprises an input bevel gear, an output bevel gear wheel, a break, a planetary wheel carrier, multiple bevel planet gear and bevel planet gear axle;
Described multiple bevel planet gear, respectively by bevel planet gear axle, the radial pivot along planetary wheel carrier is fixed on planetary wheel carrier outer rim;
Described input bevel gear, engages with described multiple bevel planet gear in the side of described planetary wheel carrier;
Described output bevel gear wheel, engages with described multiple bevel planet gear at the opposite side of described planetary wheel carrier;
Described input bevel gear is identical with described output bevel gear tooth number;
Described break, is used for limiting the rotation of planetary wheel carrier.
Described break, can comprise a brake drum, a clamping strap, a brake actuator;
Described brake drum is ring, and its inner rim is radially distributed with multiple round hole;
Described planetary wheel carrier, its outer rim is corresponding with described brake drum is radially distributed with multiple round hole, and described planetary wheel carrier is fixed in described brake drum;
Described multiple bevel planet gear, is fixed between the corresponding round hole on described brake drum and planetary wheel carrier respectively by bevel planet gear axle pivot;
Described clamping strap, is arranged on described brake drum outer rim;
Described brake actuator, is connected with described clamping strap, compresses for driving described clamping strap or unclamps described brake drum outer rim.
The outer fringe surface of described brake drum can scribble friction material.
Described brake actuator, two link arms that the length that can have is different;
Described clamping strap, can comprise the first arc band, the second arc band, clamping strap stationary axle;
Described clamping strap stationary axle, for being fixed on automatic transmission casing;
One end of described first arc band, the second arc band is fixed on together by clamping strap stationary axle pivot, and the other end of the first arc band, the second arc band is fixed together with two link arm pivots that the length of described brake actuator is different respectively.
Described brake drum, can comprise outer shroud brake drum, inner ring brake drum;
The internal diameter on described outer shroud brake drum top is less than the internal diameter of bottom, and is formed with multiple semi-circular recesses vertically at the same bottom adjoiner on top;
Described inner ring brake drum, its internal diameter equals the internal diameter on described outer shroud brake drum top, its external diameter is less than or equal to the internal diameter of described outer shroud brake drum bottom, and described inner ring brake drum side is formed with the multiple semi-circular recesses corresponding with the multiple semi-circular recesses on described outer shroud brake drum top vertically;
Described inner ring brake drum is together with the split of described outer shroud brake drum, and multiple semi-circular recesses of described inner ring brake drum side form with the multiple semi-circular recesses common combinations on described outer shroud brake drum top the multiple round hole that brake drum inner edges radially distribute.
The number of bevel planet gear and bevel planet gear axle can be 2,34,5 or 6.
Preferably, described multiple bevel planet gear, even pivot is fixed on planetary wheel carrier outer rim.
Mechanical torque converter of the present invention, input bevel gear is used for being connected with engine output end, receives Engine torque; Output bevel gear wheel is used for being connected with the input shaft of automatic transmission, and moment of torsion is exported to automatic transmission; Multiple bevel planet gear engage with input bevel gear, and takes turns with output bevel gear simultaneously and engage, and Engine torque is passed to output bevel gear wheel by inputting bevel gear; Described multiple bevel planet gear is uniform to be fixed on described planetary wheel carrier, can rotation, also can the revolution of planet wheels frame; Described brake drum connects consolidation with described planetary wheel carrier and is integrated; Automatic speed variator casing is fixed on described clamping strap top, bottom is connected with brake actuator, and described brake actuator, by tension clamping strap, makes clamping strap and brake drum produce friction to a certain degree, and then friction torque is produced to brake drum, the rotation of restriction planetary wheel carrier; When brake drum be braked band brake completely time, planetary wheel carrier maintains static dynamic, due to input bevel gear identical with output bevel gear tooth number, output bevel gear take turns output torque be Engine torque; When drum portion is braked, planetary wheel carrier is by affix friction torque, and the moment of torsion that output bevel gear wheel exports is Engine torque friction torque sum therewith, thus can by regulating this friction torque size to carry out increasing square; When clamping strap is not braked brake drum, planetary wheel carrier can freely rotate, and output bevel gear takes turns not output torque.Like this, when automobile speed stabilizing travels, clamping strap is braked completely to brake drum, Engine torque is directly passed to automatic transmission, when vehicle starting, clamping strap is braked drum portion, Engine torque passes to automatic transmission after increasing square by torque-converters, when motor is in idling mode, clamping strap is not braked brake drum, moment of torsion is not now had to pass to automatic transmission, thus realize the rotating speed of motor to automatic transmission and the transmission of moment of torsion, and make between motor and automatic transmission be connected to become nonrigid, facilitate automatic transmission self shifter.
Mechanical type torque-converters of the present invention, may be used for automatic transmission, and compares fluid torque converter, owing to there is not hydraulic losses, improves transmission efficiency, and transmission efficiency can reach more than 80%; Owing to mainly completing moment of torsion transmission by several bevel gear, compact structure, reduce radial dimension, be conducive to the lightweight and the miniaturization that realize torque-converters, and easy disassembling, easy to maintenance, effectively can reduce production and the maintenance cost of torque-converters.
Accompanying drawing explanation
In order to be illustrated more clearly in technological scheme of the present invention, below the accompanying drawing that will use required for the present invention is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of mechanical torque converter one embodiment of the present invention;
Fig. 2 is the explosive view of mechanical torque converter one embodiment of the present invention;
Fig. 3 is the explosive view of the break of mechanical torque converter one embodiment of the present invention;
Fig. 4 is the clamping strap of mechanical torque converter one embodiment of the present invention and the explosive view of brake actuator;
Fig. 5 is the sectional view of the outer shroud brake drum of mechanical torque converter one embodiment of the present invention;
Fig. 6 is the schematic diagram being applied to automatic transmission of mechanical torque converter of the present invention;
Fig. 7 is the increasing principle of moment figure of mechanical torque converter of the present invention.
Embodiment
Below in conjunction with accompanying drawing, carry out clear, complete description to the technological scheme in the present invention, obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, belong to the scope of protection of the invention.
Embodiment one
Mechanical torque converter, its structure as shown in Figure 1 and Figure 2, comprise input bevel gear 6, output bevel gear wheel 8, one break, the gear of a planetary wheel carrier 5, multiple (as 2,34,5 or 6) bevel planet gear 4(bevel gear to be reference surface be conical surface, be umbrella gear again) and bevel planet gear axle 41;
Described multiple bevel planet gear 4, respectively by bevel planet gear axle 41, the radial pivot along planetary wheel carrier 5 is fixed on planetary wheel carrier 5 outer rim; Preferably, the even pivot of described multiple bevel planet gear 4 is fixed on planetary wheel carrier 5 outer rim;
Described input bevel gear 6, engages with described multiple bevel planet gear 4 in the side of described planetary wheel carrier 5;
Described output bevel gear wheel 8, engages with described multiple bevel planet gear 4 at the opposite side of described planetary wheel carrier 5;
It is identical that described input bevel gear 6 and described output bevel gear take turns 8 numbers of teeth;
Described break, is used for limiting the rotation of planetary wheel carrier 5.
Embodiment two
Based on the mechanical torque converter of embodiment one, described break, as shown in Figure 2 and Figure 3, comprises brake drum 3, clamping strap 2, brake actuator 7;
Described brake drum 3 is ring, and its inner rim is radially distributed with multiple round hole, and preferably, its outer fringe surface scribbles friction material;
Described planetary wheel carrier 5, its outer rim is corresponding with described brake drum 3 is radially distributed with multiple round hole, and described planetary wheel carrier 5 is fixed in described brake drum 3;
Described multiple bevel planet gear 4, is fixed between the corresponding round hole on described brake drum 3 and planetary wheel carrier 5 respectively by bevel planet gear axle 41 pivot;
Described clamping strap 2, is arranged on described brake drum 3 outer rim;
Described brake actuator 7, is connected with described clamping strap 2, compresses or unclamp described brake drum 3 outer rim for driving described clamping strap 2.
Embodiment three
Based on the mechanical torque converter of embodiment two, as shown in Figure 2, Figure 3, Figure 4,
Described brake actuator 7, two link arms 71,72 that the length had is different;
Described clamping strap 2, comprises the first arc band 21, second arc band 22, clamping strap stationary axle 23;
Described clamping strap stationary axle 23, for being fixed on automatic transmission casing;
One end of described first arc band 21, second arc band 22 is fixed on together by described clamping strap stationary axle 23 pivot, the other end of the first arc band 21, second arc band 22 is fixed together with two link arms 71,72 pivot that the length of described brake actuator 7 is different respectively.
Embodiment four
Based on the mechanical torque converter of embodiment two, described brake drum 3, as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5,
Comprise outer shroud brake drum 31, inner ring brake drum 32;
The internal diameter on described outer shroud brake drum 31 top is less than the internal diameter of bottom, and is formed with multiple semi-circular recesses 311 vertically at the same bottom adjoiner on top;
Described inner ring brake drum 32, its internal diameter equals the internal diameter on described outer shroud brake drum 32 top, its external diameter is less than or equal to the internal diameter of described outer shroud brake drum 31 bottom, and described inner ring brake drum 32 side is formed with the multiple semi-circular recesses 322 corresponding with the multiple semi-circular recesses 311 on described outer shroud brake drum 31 top vertically;
Described inner ring brake drum 32 is together with the split of described outer shroud brake drum 31, and multiple semi-circular recesses 322 of described inner ring brake drum 32 side form with multiple semi-circular recesses 311 common combination on described outer shroud brake drum 31 top the multiple round hole that brake drum 3 inner edge radially distributes.
Mechanical torque converter of the present invention, can be applied to automatic transmission.Fig. 6 is the example that mechanical torque converter of the present invention is applied to automatic transmission, and engine output end is connected with mechanical torque converter of the present invention, transmitting torque, after bending moment, by transmission of power to automatic transmission.
The increasing principle of moment of mechanical torque converter of the present invention as shown in Figure 7, T
efor engine output torque, T
ofor the output torque of this mechanical torque converter, T
bfor the braking moment of brake drum, F inputs engaging force when bevel gear engages with bevel planet gear, F
ofor engaging force when output bevel gear wheel engages with bevel planet gear, r is the radius of input bevel gear and input bevel gear.
Engaging force F when input bevel gear engages with bevel planet gear can be calculated by following formula:
The braking moment T of brake drum
bcan be calculated by following formula:
T
b＝(F
o-F)r (2)
So, the output torque T of described mechanical torque converter
ofor:
Formula (3) illustrates, when clamping strap is braked brake drum, output bevel gear wheel output torque is the braking moment sum that Engine torque produces with braking, thus can carry out increasing square by braking moment size during adjustable brake.
Mechanical torque converter of the present invention, input bevel gear is used for being connected with engine output end, receives Engine torque; Output bevel gear wheel is used for being connected with the input shaft of automatic transmission, and moment of torsion is exported to automatic transmission; Multiple bevel planet gear engage with input bevel gear, and takes turns with output bevel gear simultaneously and engage, and Engine torque is passed to output bevel gear wheel by inputting bevel gear; Described multiple bevel planet gear is uniform to be fixed on described planetary wheel carrier, can rotation, also can the revolution of planet wheels frame; Described brake drum connects consolidation with described planetary wheel carrier and is integrated; Automatic speed variator casing is fixed on described clamping strap top, bottom is connected with brake actuator, and described brake actuator, by tension clamping strap, makes clamping strap and brake drum produce friction to a certain degree, and then friction torque is produced to brake drum, the rotation of restriction planetary wheel carrier; When brake drum be braked band brake completely time, planetary wheel carrier maintains static dynamic, due to input bevel gear identical with output bevel gear tooth number, output bevel gear take turns output torque be Engine torque; When drum portion is braked, planetary wheel carrier is by affix friction torque, and the moment of torsion that output bevel gear wheel exports is Engine torque friction torque sum therewith, thus can by regulating this friction torque size to carry out increasing square; When clamping strap is not braked brake drum, planetary wheel carrier can freely rotate, and output bevel gear takes turns not output torque.Like this, when automobile speed stabilizing travels, clamping strap is braked completely to brake drum, Engine torque is directly passed to automatic transmission, when vehicle starting, clamping strap is braked drum portion, Engine torque passes to automatic transmission after increasing square by torque-converters, when motor is in idling mode, clamping strap is not braked brake drum, moment of torsion is not now had to pass to automatic transmission, thus realize the rotating speed of motor to automatic transmission and the transmission of moment of torsion, and make between motor and automatic transmission be connected to become nonrigid, facilitate automatic transmission self shifter.
Mechanical type torque-converters of the present invention, may be used for automatic transmission, and compares fluid torque converter, owing to there is not hydraulic losses, improves transmission efficiency, and transmission efficiency can reach more than 80%; Owing to mainly completing moment of torsion transmission by several bevel gear, compact structure, reduce radial dimension, be conducive to the lightweight and the miniaturization that realize torque-converters, and easy disassembling, easy to maintenance, effectively can reduce production and the maintenance cost of torque-converters.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (7)
1. a mechanical torque converter, is characterized in that, comprises an input bevel gear, an output bevel gear wheel, a break, a planetary wheel carrier, multiple bevel planet gear and bevel planet gear axle;
Described multiple bevel planet gear, respectively by bevel planet gear axle, the radial pivot along planetary wheel carrier is fixed on planetary wheel carrier outer rim;
Described input bevel gear, engages with described multiple bevel planet gear in the side of described planetary wheel carrier;
Described output bevel gear wheel, engages with described multiple bevel planet gear at the opposite side of described planetary wheel carrier;
Described input bevel gear is identical with described output bevel gear tooth number;
Described break, is used for limiting the rotation of planetary wheel carrier.
2. mechanical torque converter according to claim 1, is characterized in that,
Described break, comprises a brake drum, a clamping strap, a brake actuator;
Described brake drum is ring, and its inner rim is radially distributed with multiple round hole;
Described planetary wheel carrier, its outer rim is corresponding with described brake drum is radially distributed with multiple round hole, and described planetary wheel carrier is fixed in described brake drum;
Described multiple bevel planet gear, is fixed between the corresponding round hole on described brake drum and planetary wheel carrier respectively by bevel planet gear axle pivot;
Described clamping strap, is arranged on described brake drum outer rim;
Described brake actuator, is connected with described clamping strap, compresses for driving described clamping strap or unclamps described brake drum outer rim.
3. mechanical torque converter according to claim 2, is characterized in that,
The outer fringe surface of described brake drum scribbles friction material.
4. mechanical torque converter according to claim 2, is characterized in that,
Described brake actuator, two link arms that the length had is different;
Described clamping strap, comprises the first arc band, the second arc band, clamping strap stationary axle;
Described clamping strap stationary axle, for being fixed on automatic transmission casing;
One end of described first arc band, the second arc band is fixed on together by clamping strap stationary axle pivot, and the other end of the first arc band, the second arc band is fixed together with two link arm pivots that the length of described brake actuator is different respectively.
5. mechanical torque converter according to claim 2, is characterized in that,
Described brake drum, comprises outer shroud brake drum, inner ring brake drum;
The internal diameter on described outer shroud brake drum top is less than the internal diameter of bottom, and is formed with multiple semi-circular recesses vertically at the same bottom adjoiner on top;
Described inner ring brake drum, its internal diameter equals the internal diameter on described outer shroud brake drum top, its external diameter is less than or equal to the internal diameter of described outer shroud brake drum bottom, and described inner ring brake drum side is formed with the multiple semi-circular recesses corresponding with the multiple semi-circular recesses on described outer shroud brake drum top vertically;
Described inner ring brake drum is together with the split of described outer shroud brake drum, and multiple semi-circular recesses of described inner ring brake drum side form with the multiple semi-circular recesses common combinations on described outer shroud brake drum top the multiple round hole that brake drum inner edges radially distribute.
6. the mechanical torque converter according to any one of claim 1 to 5, is characterized in that,
The number of bevel planet gear and bevel planet gear axle is 2,3,4,5 or 6.
7. the mechanical torque converter according to any one of claim 1 to 5, is characterized in that,
Described multiple bevel planet gear, respectively by bevel planet gear axle, the even pivot of the radial direction along planetary wheel carrier is fixed on planetary wheel carrier outer rim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187140.5A CN102734391B (en) | 2012-06-08 | 2012-06-08 | Mechanical torque converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187140.5A CN102734391B (en) | 2012-06-08 | 2012-06-08 | Mechanical torque converter |
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| Publication Number | Publication Date |
|---|---|
| CN102734391A CN102734391A (en) | 2012-10-17 |
| CN102734391B true CN102734391B (en) | 2015-08-19 |
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|---|---|---|---|
| CN201210187140.5A Active CN102734391B (en) | 2012-06-08 | 2012-06-08 | Mechanical torque converter |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291848B (en) * | 2013-04-15 | 2016-01-06 | 武汉理工大学 | Bevel gear splitter |
| CN107830122A (en) * | 2017-10-23 | 2018-03-23 | 成峰消防设备（上海）有限公司 | A kind of planetary gear that any gear ratio can be achieved and its application |
| CN108488274B (en) * | 2018-04-24 | 2024-05-28 | 青岛恒胜金属制品有限公司 | Electric automobile planet carrier brake hub and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116024A (en) * | 1999-05-13 | 2000-09-12 | Tcp Performance Converters | Torque converter employing a mechanical diode |
| CN1373309A (en) * | 2001-02-28 | 2002-10-09 | 方祖彭 | Planetary static pressure torque converter and torque converter for static pressure machinery |
| CN102358159A (en) * | 2011-08-05 | 2012-02-22 | 上海中科深江电动车辆有限公司 | Hybrid drive system with hydraulic torque converter |
| CN102434634A (en) * | 2011-12-07 | 2012-05-02 | 吴守京 | Differential gear type planetary gear reducer |
| CN202719078U (en) * | 2012-06-08 | 2013-02-06 | 联合汽车电子有限公司 | Mechanical torque converter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9004838D0 (en) * | 1990-03-03 | 1990-04-25 | Child Arnold D | Mechanical torque converters |
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2012
- 2012-06-08 CN CN201210187140.5A patent/CN102734391B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116024A (en) * | 1999-05-13 | 2000-09-12 | Tcp Performance Converters | Torque converter employing a mechanical diode |
| CN1373309A (en) * | 2001-02-28 | 2002-10-09 | 方祖彭 | Planetary static pressure torque converter and torque converter for static pressure machinery |
| CN102358159A (en) * | 2011-08-05 | 2012-02-22 | 上海中科深江电动车辆有限公司 | Hybrid drive system with hydraulic torque converter |
| CN102434634A (en) * | 2011-12-07 | 2012-05-02 | 吴守京 | Differential gear type planetary gear reducer |
| CN202719078U (en) * | 2012-06-08 | 2013-02-06 | 联合汽车电子有限公司 | Mechanical torque converter |
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| CN102734391A (en) | 2012-10-17 |
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