CN102797810A - Power shifting transmission being applicable to large-power vehicles - Google Patents
Power shifting transmission being applicable to large-power vehicles Download PDFInfo
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- CN102797810A CN102797810A CN2012103184347A CN201210318434A CN102797810A CN 102797810 A CN102797810 A CN 102797810A CN 2012103184347 A CN2012103184347 A CN 2012103184347A CN 201210318434 A CN201210318434 A CN 201210318434A CN 102797810 A CN102797810 A CN 102797810A
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Abstract
The invention provides a power shifting transmission being applicable to large-power vehicles, which is particularly applicable to engineering vehicles such as a large-power tramcar, a land leveler, a loading machine and the like. The transmission consists of an ordinary gear train and a planetary gear train and effectively utilizes the advantages of the ordinary gear train and the planetary gear train. When a vehicle stays at a high-speed light-load working condition, the power is outputted by the ordinary gear train; and when the vehicle stays at a low-speed heavy-load working condition, and the power is transmitted by the ordinary gear train to the planetary gear train and then is outputted through the planetary gear train. The transmission can realize six forward gears and two reverse gears and has advantages of simpleness in structure and capability of outputting large power and large torque.
Description
Technical field
The present invention relates to a kind of power-shifting transmission, the used speed changers of engineering vehicle such as particularly high-power mine car, loader peace diji.
Background technique
Gear-shift transmission mainly contains fixed shaft type and planetary two kinds of type of belt drive.With German ZF, U.S. DANA and CLARK company is the enterprise of representative, and the speed changer of production is main with fixed shaft type, is the enterprise of representative with U.S. ALLISON company, the speed changer of production with planetary be main.Fixed shaft type and planetary the two pluses and minuses are respectively arranged.
The characteristics of fixed shaft type speed changer are: simplicity of design, easily manufactured, low price; Part shape is simple, and component universality is better, and it is easy that the power taking mouth is set on case; Be easy to realize becoming axle and fall, the distribution network number, gear ratio, its adaptability is strong; The structure easy master is understood, and is easy to maintenance; Module is big, and the speed changer transverse dimension is big, and structure is not compact; The gearshift binding member receives size restrictions, and torque capacity and thermal capacitance are often less.
The characteristics of planet transmission are embodied in: transmission of torque is dispersed on a plurality of planet wheels, and module is little; Specific volume power density is big, compact structure, and weight is lighter; Many gears planet transmission is made up of a plurality of planet rows usually, complex structure, and number of parts is many, and technical requirements is high, and manufacture cost is high, and maintenance is difficulty relatively; Input output are coaxial, are suitable for the machinery of the unidirectional output of coaxial arrangement, like the two-way output of need, need add transfer case; Relatively difficulty of power taking mouth is set on case.
The power taking mouth of devices such as variable speed pump, working pump, steering pump need be set on the engineering vehicle usually, and need the two-way output of power of speed changer.Adopt the fixed shaft type speed changer can satisfy these requirements preferably.If the employing planet transmission then need increase devices such as transfer case.In many gears speed changer of middle low power, fixed shaft type is occupied an leading position.
Along with development of technology, the modern project vehicle develops towards the maximization direction, and engine power is increasing, and the moment that speed changer transmits is also come greatly.For example, carrying capacity reaches 100 tons mine car, and its engine power is more than 500KW, and the moment of maximum output that requires speed changer is up to more than the 20000Nm.Fixed shaft type speed changer and planet transmission all can not satisfy the requirement of high-power engineering vehicle well.Each of fixed axle gearbox grade transmission of power is all accomplished by a pair of gear, and the slow speed turbine stage strength of gear teeth is difficult to satisfy high pulling torque output requirement.The moment of planetary transmission transmission is shared by several planetary pinions, can satisfy the requirement of high pulling torque output, but can not satisfy requirements such as the setting of power taking mouth, axle are fallen, the two-way output of power well.
Summary of the invention
The object of the invention: provide a kind of simple in structure, can adapt to the power-shift transmission that is applicable to high-power engineering vehicle.
Technological scheme of the present invention:, all can not satisfy the requirement of high-power engineering vehicle transmission well because fixed shaft type speed changer and planet transmission respectively have pluses and minuses.If make full use of the advantage of the two, learn from other's strong points to offset one's weaknesses, then can deal with problems preferably.Adopt the technological scheme of fixed shaft gear train and single planet row combination,, adopt different driving methods to the vehicle different working conditions.Power is by the direct output torque of fixed shaft gear train during high speed light loading; Power is delivered to planet row by fixed shaft gear train during low-speed heave-load, slows down to increase through planet row and turns round back output.
Content of the present invention: first fixed gear (7) is installed on the input shaft (1), and first free gear (8) on it and first jack shaft (2) and the 4th fixed gear (11) on second jack shaft (3) keep engagement often; First free gear (8), back clutch (CR) and second fixed gear (9) are installed on first jack shaft (2), and second fixed gear (9) often meshes with second free gear (12) and the maintenance of the 6th fixed gear (16) on the 4th jack shaft (5) on second jack shaft (3); The 3rd fixed gear (10), the 4th fixed gear (11), first forward clutch (C1) and second free gear (12) are installed on second jack shaft (3), and the 3rd fixed gear (10) often meshes with the 5th fixed gear (13) maintenance on the 3rd jack shaft (4); The 5th fixed gear (13), second forward clutch (C2) and the 3rd free gear (14) are installed on the 3rd jack shaft (4); The 5th fixed gear (13) while often meshes with the 3rd fixed gear (10) and the maintenance of the 4th free gear (15) on the 4th jack shaft (5) on second jack shaft (3), and the 3rd free gear (14) often meshes with the 6th fixed gear (16) maintenance on the 4th jack shaft (5); The 4th free gear (15), the 3rd forward clutch (C3) and the 6th fixed gear (16) are installed on the 4th jack shaft (5), and the 6th fixed gear (16) while often meshes with second fixed gear (9) and the maintenance of the 5th free gear (17) on the output shaft (6) on first jack shaft (2); Underloading clutch (CL), the 5th free gear (17), sun gear (18) and planet carrier (20) are installed on the output shaft (6); The 5th free gear (17) and sun gear (18) are connected as a whole, and output shaft (6) is connected as a whole with planet carrier (20); Ring gear (21) links to each other through heavily loaded clutch (CH) with frame.
Advantage of the present invention and good effect: fixed shaft gear train and single planet row combination, power is directly exported by fixed shaft gear train during high speed light loading, and power is exported through planet row by fixed shaft gear train during low-speed heave-load.Both had fixed shaft gear train simple in structure, be provided with the power taking mouth easily, axle falls and changes advantage convenient, the two-way output of power, has the advantage that planet transmission can adapt to high pulling torque output again.Can satisfy the needs of high-power engineering vehicle well.
Description of drawings
Fig. 1 drive path.
Fig. 2 end on projection.
Fig. 3 topological structure.
Embodiment
Be applicable to drive path such as Fig. 1 institute of the power-shift transmission of High-Powered Vehicle, form by a fixed shaft gear train and a planet row.Fixed shaft gear train is made up of following component: input shaft (1), first jack shaft (2), second jack shaft (3), the 3rd jack shaft (4), the 4th jack shaft (5), output shaft (6), first forward clutch (C1), second forward clutch (C2), the 3rd forward clutch (C3), back clutch (CR), underloading clutch (CL), first free gear (8), second free gear (12), the 3rd free gear (14), the 4th free gear (15), the 5th free gear (17), first fixed gear (7), second fixed gear (9), the 3rd fixed gear (10), the 4th fixed gear (11), the 5th fixed gear (13), the 6th fixed gear (16).Planet row be made up of sun gear (18), planet wheel (19), planet carrier (20), ring gear (21), heavily loaded clutch (CH) and output shaft (6).All clutches all are friction clutches in the speed changer.Fixed gear on all holds together with axle, and axle does not have relative motion relation with fixed gear.Can not relatively move between free gear on all and the axle, but can relatively rotate.
First fixed gear (7) is arranged on the input shaft (1), and first fixed gear (7) while often meshes with first free gear (8) and the maintenance of second fixed gear on second jack shaft (3) on first jack shaft (2).
First free gear (8), back clutch (CR) and second fixed gear (9) are arranged on first jack shaft (2).First fixed gear (7) on first free gear (8) and the input shaft (1) keeps engagement often, and second fixed gear (9) while often meshes with second free gear (12) and the maintenance of the 6th fixed gear (16) on the 4th jack shaft (5) on second jack shaft (3).First jack shaft (2) links to each other through back clutch (CR) with first free gear (8), and when back clutch (CR) was closed, first jack shaft (2) and first free gear (8) were connected as a whole, and the two does not have relative movement.When back clutch (CR) broke off, first free gear (8) can freely rotate around first jack shaft (2).
The 3rd fixed gear (10), the 4th fixed gear (11), first forward clutch (C1) and second free gear (12) are arranged on second jack shaft (3).The 3rd fixed gear (10) often meshes with the 5th fixed gear (13) maintenance on the 3rd jack shaft (4); First fixed gear (7) on the 4th fixed gear (11) and the input shaft (1) keeps engagement often, and second free gear (12) is gone up with first jack shaft (2) and second fixed gear (9) keeps engagement often.Second jack shaft (3) links to each other through first forward clutch (C1) with second free gear (12); When first forward clutch (C1) is closed; Second jack shaft (3) and second free gear (12) are connected as a whole, and the two does not have relative movement.When first forward clutch (C1) broke off, second free gear (12) can freely rotate around second jack shaft (3).
The 5th fixed gear (13), second forward clutch (C2) and the 3rd free gear (14) are arranged on the 3rd jack shaft (4).The 5th fixed gear (13) while often meshes with the 4th free gear (15) maintenance on last the 3rd fixed gear of second jack shaft (3) (10) and the 4th jack shaft (5), and the 3rd free gear (14) often meshes with the 6th fixed gear (16) maintenance on the 4th jack shaft (5).The 3rd jack shaft (4) links to each other through second forward clutch (C2) with the 3rd free gear (14); When second forward clutch (C2) is closed; The 3rd jack shaft (4) and the 3rd free gear (14) are connected as a whole, and the two does not have relative movement.When second forward clutch (C2) broke off, the 3rd free gear (14) can freely rotate around the 3rd jack shaft (4).
The 4th free gear (15), the 3rd forward clutch (C3) and the 6th fixed gear (16) are arranged on the 4th jack shaft (5).The 4th free gear (15) often meshes with the 5th fixed gear (13) maintenance on the 3rd jack shaft (4), and the 6th fixed gear (16) while and second fixed gear (9), the 3rd free gear (14) and the 5th free gear (17) keep engagement often.The 4th jack shaft (5) links to each other through the 3rd forward clutch (C3) with the 4th free gear (15); When the 3rd forward clutch (C3) is closed; The 4th jack shaft (5) and the 4th free gear (15) are connected as a whole, and the two does not have relative movement.When the 3rd forward clutch (C3) broke off, the 4th free gear (15) can freely rotate around the 4th jack shaft (5).
Underloading clutch (CL), the 5th free gear (17), sun gear (18) and planet carrier (20) are arranged on the output shaft (6).The 5th free gear (17) often meshes with the 6th fixed gear (16) maintenance on the 4th jack shaft (5).Sun gear (18) sky is enclosed within on the output shaft (6), and it can rotate relative to output shaft (6) but can not move.Sun gear (18) and the 5th free gear (17) are connected as a whole, and the two can not relative movement.Planet carrier (20) and output shaft (6) are connected as a whole, and the two can not relative movement.Output shaft (6) links to each other through underloading clutch (CL) with the 5th free gear (17), and when underloading clutch (CL) was closed, output shaft (6) and the 5th free gear (17) were connected as a whole, and the two does not have relative movement.When underloading clutch (CL) broke off, the 5th free gear (17) can freely rotate around output shaft (6).
Planet row be made up of central gear (18), planet wheel (19), planet carrier (20), ring gear (21) and heavily loaded clutch (CH).Central gear (18) sky is enclosed within on the output shaft, and is connected as a whole with the 5th free gear (17).Planet carrier (20) is connected as a whole with output shaft (6).Ring gear (21) links to each other through heavily loaded clutch (CH) with frame, and when heavily loaded clutch (CH) was closed, ring gear (21) was fixed on the frame and can not moves.When heavily loaded clutch (CH) broke off, ring gear (21) frame relatively freely rotated.
Speed changer of the present invention can realize advancing six gears with retreat two gears.Advance one, two, three retainings and slow astern retaining is the low-speed heave-load gear, and four, five, six retainings and retreat two retainings and be the high speed light loading gear advance.Existing is example with advance a retaining and six retainings that advance respectively, introduces the drive path of speed changer.
Speed changer is in when advancing a retaining, first forward clutch (C1) and heavily loaded clutch (CH) closure, and all the other clutches break off.Power transmission line is: input shaft (1), first fixed gear (7), the 4th fixed gear (11); First forward clutch (C1), second free gear (12), second fixed gear (9); The 6th fixed gear (16), the 5th free gear (17), sun gear (18); Planet wheel (19), planet carrier (20), output shaft (6).
Speed changer is in when advancing six retainings, the 3rd forward clutch (C3) and underloading clutch (CL) closure, and all the other clutches break off.Power transmission line is: input shaft (1), first fixed gear (7), the 4th fixed gear (11); The 3rd fixed gear (10), the 5th fixed gear (13), the 4th free gear (15); The 3rd forward clutch (C3), the 4th jack shaft (5), the 6th fixed gear (16); The 5th free gear (17), underloading clutch (CL), output shaft (6).
At any one gear, have only two clutch closures, all the other clutches all break off.When speed changer worked in different gear, the state of clutch was as shown in the table.The power transmission line of each gear no longer details.
| C1 | C2 | C3 | CR | CH | CL | |
| A retaining advances | Closed | ? | ? | ? | Closed | ? |
| Two retainings advance | ? | Closed | ? | ? | Closed | ? |
| The ahead three retaining | ? | ? | Closed | ? | Closed | ? |
| Four retainings advance | Closed | ? | ? | ? | ? | Closed |
| Five retainings advance | ? | Closed | ? | ? | ? | Closed |
| Six retainings advance | ? | ? | Closed | ? | ? | Closed |
| The slow astern retaining | ? | ? | ? | Closed | Closed | ? |
| Retreat two retainings | ? | ? | ? | Closed | ? | Closed |
In order to satisfy the requirement of specific velocity ratio, can on input shaft or jack shaft, increase or reduce the number of fixed gear.
Claims (3)
1. power-shift transmission that is applicable to High-Powered Vehicle; It comprises a fixed shaft gear train and a planet row; Fixed shaft gear train is by input shaft (1), first jack shaft (2), second jack shaft (3), the 3rd jack shaft (4), the 4th jack shaft (5), output shaft (6), first forward clutch (C1), second forward clutch (C2), the 3rd forward clutch (C3), back clutch (CR), underloading clutch (CL), first free gear (8); Second free gear (12), the 3rd free gear (14), the 4th free gear (15), the 5th free gear (17), first fixed gear (7), second fixed gear (9), the 3rd fixed gear (10), the 4th fixed gear (11), the 5th fixed gear (13), the 6th fixed gear (16) are formed; Planet row be made up of sun gear (18), planet wheel (19), planet carrier (20), ring gear (21) and heavily loaded clutch (CH), and it is characterized in that: all clutches all are friction clutches; Fixed gear on all holds together with axle, and axle does not have relative motion relation with fixed gear; Can not relatively move between free gear on all and the axle, but can relatively rotate; First fixed gear (7) is installed on the input shaft (1), and first free gear (8) on it and first jack shaft (2) and the 4th fixed gear (11) on second jack shaft (3) keep engagement often; First free gear (8), back clutch (CR) and second fixed gear (9) are installed on first jack shaft (2), and second fixed gear (9) often meshes with second free gear (12) and the maintenance of the 6th fixed gear (16) on the 4th jack shaft (5) on second jack shaft (3); The 3rd fixed gear (10), the 4th fixed gear (11), first forward clutch (C1) and second free gear (12) are installed on second jack shaft (3), and the 3rd fixed gear (10) often meshes with the 5th fixed gear (13) maintenance on the 3rd jack shaft (4); The 5th fixed gear (13), second forward clutch (C2) and the 3rd free gear (14) are installed on the 3rd jack shaft (4); The 5th fixed gear (13) while often meshes with the 3rd fixed gear (10) and the maintenance of the 4th free gear (15) on the 4th jack shaft (5) on second jack shaft (3), and the 3rd free gear (14) often meshes with the 6th fixed gear (16) maintenance on the 4th jack shaft (5); The 4th free gear (15), the 3rd forward clutch (C3) and the 6th fixed gear (16) are installed on the 4th jack shaft (5), and the 6th fixed gear (16) while often meshes with second fixed gear (9) and the maintenance of the 5th free gear (17) on the output shaft (6) on first jack shaft; Underloading clutch (CL), the 5th free gear (17), sun gear (18) and planet carrier (20) are installed on the output shaft (6); The 5th free gear (17) and sun gear (18) are connected as a whole, and output shaft (6) is connected as a whole with planet carrier (20); Ring gear (21) links to each other through heavily loaded clutch (CH) with frame.
2. the power-shift transmission that is applicable to High-Powered Vehicle according to claim 1; It is characterized in that: with speed changer along the axial direction projection; And it is the axle center of two axles that the first motion transitive relation is arranged on the projection drawing is continuous with line segment; Can obtain the topology diagram of speed changer; Its topological structure is the combination of a triangle, a quadrilateral and a line segment; Leg-of-mutton three summits are respectively the axis projections of input shaft (1), first jack shaft (2) and second jack shaft (3), and tetragonal four summits are respectively the axis projections of first jack shaft (2), second jack shaft (3), the 3rd jack shaft (4) and the 4th jack shaft (5), and two summits of line segment are respectively the axis projections of the 4th jack shaft (5) and output shaft (6).
3. the power-shift transmission that is applicable to High-Powered Vehicle according to claim 1; It is characterized in that: speed changer has six forward gears and two and retreats retaining; The gear that heavy duty clutch (CH) is participated in work is one, two, three retainings and the slow astern retaining of advancing, and the gear of underloading clutch participation work four, five, six keeps off and retreat two retainings for advancing.
4. the power-shift transmission that is applicable to High-Powered Vehicle according to claim 1 is characterized in that: all clutches are friction clutch, can under the situation of not cutting off engine power, shift gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103184347A CN102797810A (en) | 2012-09-03 | 2012-09-03 | Power shifting transmission being applicable to large-power vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103184347A CN102797810A (en) | 2012-09-03 | 2012-09-03 | Power shifting transmission being applicable to large-power vehicles |
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| Publication Number | Publication Date |
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| CN102797810A true CN102797810A (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012103184347A Pending CN102797810A (en) | 2012-09-03 | 2012-09-03 | Power shifting transmission being applicable to large-power vehicles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455235A (en) * | 2014-11-20 | 2015-03-25 | 四川大学 | Power shifting transmission suitable for loader |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002221260A (en) * | 2000-11-15 | 2002-08-09 | Isuzu Motors Ltd | Planetary-gear type transmission |
| US20100113209A1 (en) * | 2008-10-31 | 2010-05-06 | Douglas Rene Johnson | Split Path Power Shift Transmission |
| CN201763901U (en) * | 2010-02-11 | 2011-03-16 | 四川大学 | Power gearshift transmission with nine gears |
| CN102606708A (en) * | 2012-03-30 | 2012-07-25 | 杭州前进齿轮箱集团股份有限公司 | Multi-gear hydrodynamic transmission applicable to various working conditions |
| CN202971769U (en) * | 2012-09-03 | 2013-06-05 | 四川大学 | Power gear-shifting transmission suitable for high-power vehicle |
-
2012
- 2012-09-03 CN CN2012103184347A patent/CN102797810A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002221260A (en) * | 2000-11-15 | 2002-08-09 | Isuzu Motors Ltd | Planetary-gear type transmission |
| US20100113209A1 (en) * | 2008-10-31 | 2010-05-06 | Douglas Rene Johnson | Split Path Power Shift Transmission |
| CN101725677A (en) * | 2008-10-31 | 2010-06-09 | 迪尔公司 | Split path power shift transmission |
| CN201763901U (en) * | 2010-02-11 | 2011-03-16 | 四川大学 | Power gearshift transmission with nine gears |
| CN102606708A (en) * | 2012-03-30 | 2012-07-25 | 杭州前进齿轮箱集团股份有限公司 | Multi-gear hydrodynamic transmission applicable to various working conditions |
| CN202971769U (en) * | 2012-09-03 | 2013-06-05 | 四川大学 | Power gear-shifting transmission suitable for high-power vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455235A (en) * | 2014-11-20 | 2015-03-25 | 四川大学 | Power shifting transmission suitable for loader |
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Application publication date: 20121128 |