CN207278802U - Three planet row automatic transmission and vehicle - Google Patents

Abstract

It the utility model is related to automotive field, disclose a kind of three planet row automatic transmission and vehicle, including input link and output link, first, second, third planet row of setting is arranged in order along same rotating shaft, first, second, third clutch and first, second brake, first planet row is dual planetary gear group planet row, second, third planet row is single planetary bevel gear group planet row；Wherein, first sun gear is fixed, first gear ring is fixedly connected with output link, first planet carrier is fixedly connected with the second planet carrier, second gear ring is connected by first clutch with the third line carrier, and input link is fixedly connected with the second sun gear, and input link is connected by second clutch with the third line carrier, input link is connected by the 3rd clutch with the 3rd sun gear, and the 3rd gear ring is fixedly connected with output link；First brake selectively closes off, and the third line carrier is braked, and second brake selectively closes off, and the 3rd sun gear is braked.

Description

Three planet row automatic transmission and vehicle

Technical field

Automotive field is the utility model is related to, more particularly to a kind of three planet row automatic transmission and vehicle.

Background technology

Electric control hydraulic variator system realizes that the mechanism of speed change generally comprises multiple planet rows, and engine power is through fluid power It is passed to after planet row gear carries out speed change and exports after torque-converters.Volume, weight, efficiency and the carrying energy of automatic transmission Power is directly related with planet row structure layout.The gear number of automatic transmission drive train is more, and the fuel consumption of automobile is lower, warp Ji property is better.But as the increase of gear number, quantity and controlled clutch, the quantity of brake of planet row are also increasing Add, meet theoretical stage than design be even more be difficult to realize.

At present, the scheme for six gear transmissions that passenger car in the market uses is mainly：(1) love letter, adopt and angstrom inspire confidence in (ZF) And lucky (DSI) use carry out Pei Laijie schemes；(2) scheme that modern times A6MF and A6LF series uses；(3) general 6T series makes Scheme；(4) six fast scheme used in Mazda Chuan Chi blue skies.

But Lai Peilaijie schemes are to increase planet row on the basis of tetra- gear transmissions of La Weina to realize , it can not realize direct gear；

The scheme of modern and general six gear transmissions used includes two clutches and three brakes, brake Quantity it is more, and in the manufacturing process of speed changer, the wiping steel disc tooth that brake rubs finally is attached on babinet, manufactures work Skill is more complicated, and more brake undoubtedly adds the processing and manufacturing difficulty of babinet, and the tank material of speed changer is general It is aluminium alloy, more brake undoubtedly can cause difficulty while can ensure babinet intensity to the light-weight design of babinet；

Wound speeds six fast schemes used in blue sky from the transverse direction for matching the six fast schemes used on large diesel engine cart Arrangement, matches with gasoline locomotive, in the speed that can be realized than having the characteristic of inadequate natural endowment in configuration.

Utility model content

The purpose of this utility model is to provide one kind on the premise of using five operating elements, only with two brakes Six speed can be achieved than three planet row automatic transmission of output, to reduce the manufacture difficulty of the babinet of speed changer, and make case Body can proof strength while, improve the feasibility of the light-weight design of babinet.

To achieve these goals, the utility model provides a kind of three planet row automatic transmission, including input link And output link, first, second, third planet row of setting, first, second, third clutch are arranged in order along same rotating shaft Device and first, second brake, wherein, first planet row includes the first gear ring, intermeshing first inner planets round Group and the first outer planet round group, the first sun gear and the first planet carrier；Second planet row includes the second gear ring, the second planet Wheel group, the second sun gear and the second planet carrier；The third planet row includes the 3rd gear ring, the third line star-wheel group, the 3rd sun Wheel and the third line carrier；First sun gear is fixed, and first gear ring is fixedly connected with the output link, described First planet carrier is fixedly connected with second planet carrier, and second gear ring passes through the first clutch and described the third line Carrier connects, and the input link is fixedly connected with second sun gear, and the input link passes through the second clutch It is connected with the third line carrier, the input link is connected by the 3rd clutch with the 3rd sun gear, described 3rd gear ring is fixedly connected with the output link；First brake selectively closes off, by the third line carrier Braking, the second brake selectively close off, and the 3rd sun gear is braked.

Preferably, first sun gear is fixedly connected with the babinet of speed changer.

Preferably, in first planet row, outside first sun gear and the first inner planets round group Engagement, the first inner planets round group and the first outer planet round group external toothing, the first outer planet round group and described the One gear ring internal messing, the first inner planets round group and the first outer planet round group are installed on the first planet carrier correspondence position by bearing Axis pin on.

Preferably, in the second planet row, the second sun gear and the second planetary gear set external toothing, the second planetary gear Group and the second gear ring internal messing, the second planetary gear set are installed on by bearing on the axis pin of the second planet carrier.

Preferably, in third planet row, the 3rd sun gear and the third line star-wheel group external toothing, the third line star-wheel Group and the 3rd gear ring internal messing, the third line star-wheel group are installed on by bearing on the axis pin of the third line carrier.

Preferably, the babinet of one end of first brake and speed changer connects, the other end and the described 3rd Planet carrier connects.

Preferably, the babinet of one end of the second brake and speed changer connects, the other end and the described 3rd Sun gear connects.

Preferably, first, second and third clutch be multiple-piece wet clutch or dog from Clutch.

Preferably, can be in the input when the first clutch and first brake are closed at First forward speed ratio is produced between component and output link；When the first clutch and the second brake close at the same time During conjunction, second forward speed ratio can be produced between the input link and output link；When the first clutch and institute When stating the 3rd clutch and being closed at, the 3rd forward speed ratio can be produced between the input link and output link；When When the first clutch is closed at the second clutch, one can be produced between the input link and output link A 4th forward speed ratio；When the second clutch and the 3rd clutch are closed at, can in the input link and The 5th forward speed ratio is produced between output link；When the second brake and the second clutch are closed at, The 6th forward speed ratio can be produced between the input link and output link；When first brake and the described 3rd When clutch is closed at, a reverse speed ratios can be produced between the input link and output link.

Identical in order to solve the problems, such as, the utility model additionally provides a kind of vehicle, includes three rows of any of the above-described scheme Star arranges automatic transmission.

The three planet row automatic transmission of the utility model, employ three clutches and two brakes as operation member Connection scheme that part is combined with three planet rows is, it can be achieved that selectively closing off only with two operating elements therein Multiple combinations mode, you can produce multiple (six forward speed ratios and a reverse speed ratios) speed ratio shifts；And use relatively fewer The processing and manufacturing difficulty of babinet can be greatly decreased as operating element in (two) brake, in the feelings for the intensity for ensureing babinet Be conducive to the light-weight design manufacture of babinet under condition；In addition, the nesting that can be conducive to clutch using more clutch is set Meter so that the structure of speed changer is compacter, and can be conducive to the connection relation between planet row is broken in specific gear incision, makes The planet row for obtaining redundancy dallies without bearing torque or is not involved in rotating, and to reduce the towing moment of torsion of planet row, improves speed change The transmission efficiency of device.

Brief description of the drawings

Fig. 1 is the connection structure signal of three each components of planet row automatic transmission of one preferred embodiment of the utility model Figure；

Fig. 2 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize the first forward speed ratio；

Fig. 3 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize the second forward speed ratio；

Fig. 4 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize three forward speed ratios；

Fig. 5 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize four forward speed ratios；

Fig. 6 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize five forward speed ratios；

Fig. 7 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize six forward speed ratios；

Fig. 8 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize reverse speed ratios.

Wherein, the 1, first planet row；11st, the first sun gear；12nd, the first gear ring；13rd, the first planet carrier；14th, the first expert Star-wheel group；15th, the first outer planet round group；2nd, the second planet row；21st, the second sun gear；22nd, the second gear ring；23rd, the second planet Frame；24th, the second planetary gear set；3rd, third planet is arranged；31st, the 3rd sun gear；32nd, the 3rd gear ring；33rd, the third line carrier；34th, Three planetary gear sets；4th, babinet；5th, input link；6th, output link；C1, first clutch；C2, second clutch；C3, the 3rd from Clutch；B1, the first brake；B2, second brake.

Embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is used to illustrate the utility model, but is not intended to limit the scope of the present invention.

As shown in Figure 1, schematically showing the three planet row automatic transmission of one kind of the utility model embodiment, it includes Input link 5 (input shaft) and output link 6 (output shaft), along same rotating shaft be arranged in order setting the first planet row 1, Two planet rows 2 and third planet row 3, first clutch C1, second clutch C2, the 3rd clutch C3 and the first brake B1, second brake B2；

Wherein, the first planet row 1 includes the first sun gear 11, the first gear ring 12, the first planet carrier 13, intermeshing the One inner planets round group 14 and the first outer planet round group 15, the connection relation of these components are：First sun gear 11 and the first expert 14 external toothing of star-wheel group, 15 external toothing of the first inner planets round group 14 and the first outer planet round group, the first outer planet round group and first It is right that 12 internal messing of gear ring, the first 1 group 4 of inner planets round and the first outer planet round group 15 are installed on the first planet carrier 13 by bearing Answer on the axis pin of position；

Second planet row 2 includes the second sun gear 21, the second gear ring 22, the second planet carrier 23, the second planetary gear set 24, this The connection relation of components is a bit：21 external toothing of second planetary gear set 24 and the second sun gear, the second planetary gear set 24 and the second tooth 22 internal messings are enclosed, the second planetary gear set 24 is installed on by bearing on the axis pin of the second planet carrier 23；

Third planet row 3 includes the 3rd sun gear 31, the 3rd gear ring 32, the third line carrier 33 and the third line star-wheel group 34, The connection relation of these components is：The third line star-wheel group 34 and 31 external toothing of the 3rd sun gear, the third line star-wheel group 34 and the 3rd 32 internal messing of gear ring, the third line star-wheel group 34 are installed on by bearing on the axis pin of the third line carrier 33.

Continue referring to shown in Fig. 1, the first sun gear 11 is fixed, that is to say, that the first sun gear 11 is in often braking State, therefore, the first sun gear 11 can be fixedly connected with babinet 4, with it is unnecessary setting brake position, avoid Brake is set, to reduce the quantity of brake as far as possible；

First gear ring 12 is fixedly connected with output link 6, and the first planet carrier 13 is fixedly connected with the second planet carrier 23, and second Gear ring 22 is connected by first clutch C1 with the third line carrier 33, and input link 5 is fixedly connected with the second sun gear 21, input Component 5 is connected by second clutch C2 with the third line carrier 33, and input link 5 passes through the 3rd clutch C3 and the 3rd sun gear 31 connections, the 3rd gear ring 32 are fixedly connected with output link 6, being fixedly connected by spline, welding or one in this programme The modes such as body manufacture are connected；

One end of first brake B1 and the babinet 4 of speed changer connect, and the other end is connected with the third line carrier 33, it is acted on It is that, when the first brake B1 is selectively closed off, the third line carrier 33 can be braked；One end of second brake B2 and change The babinet 4 of fast device connects, and the other end is connected with the 3rd sun 31, its effect is, when second brake B2 is selectively closed off, 3rd sun 31 can be taken turns braking.

In addition, three above-mentioned clutches are multiple-piece wet clutch or dog clutch.

It will specifically enumerate the three planet row automatic transmission of the utility model embodiment how are realized using five below Two operating elements in operating element selectively close off can produce multiple speed between input link 5 and output link 6 Than conversion：

As shown in Table 1, for the utility model embodiment three planet row automatic transmission speed ratio shift logical table, table It is enumerated in one and is specifically selectively closed using any two operating elements, so that between input link 5 and output link 6 Six forward speed ratios and reverse speed ratios are generated, for the ease of statement, this six forward speed ratios orders are named as the One forward speed ratio in Table 1 keeps off this six forward speed ratios to the 6th forward speed ratio labeled as 1 gear -6 successively, by rear back speed Than being kept off labeled as R；K1, K2, K3 are respectively the characteristic parameter of four planet rows in Table 1, its concrete numerical value is respective gear ring The number of teeth and the sun gear number of teeth ratio.

Incorporated by reference to shown in table one and attached drawing 2, when first clutch C1, the first brake B1 are closed at, can input The first forward speed ratio (1 gear), in 1 gear, first clutch C1 closures and the first system are produced between component 5 and output link 6 Dynamic device B1 closures so that the second gear ring 22 and the third line carrier 33 are braked at the same time, therefore, are kept off as attached drawing 2 is shown in solid, 1 Power transmission line is：Power is inputted to the second sun gear 21 by input link 5, and is transferred to second by the second planetary gear set 24 Planet carrier 23, then the first planet carrier 13 is transferred to by the second planet carrier 23, then by the first inner planets round group 14 and first outside Planetary gear set 15 is transferred to the first gear ring 12, is finally outputed power by output link 6；Therefore, the transmission speed ratio of 1 gear is：i1 =[K1 × (1+K2)]/(K1-1).

With reference to shown in table one and attached drawing 3, when first clutch C1, second brake B2 are closed at, it can input The second forward speed ratio (2 gear), in 2 gears, first clutch C1 closures, by the second tooth are produced between component 5 and output link 6 Circle 22 is connected with the third line carrier 33, and second brake B2 is closed so that the 3rd sun gear 31 is braked, therefore, as attached drawing 3 is real Shown in line, the power transmission line of 2 gears is divided into two：One is that power is inputted to the second sun gear 21 by input link 5, and by Second planetary gear set 24 is transferred to the second planet carrier 23, then is transferred to the first planet carrier 13 by the second planet carrier 23, then by First inner planets round group 14 and the first outer planet round group 15 are transferred to the first gear ring 12, are finally outputed power by output link 6； Another is that power is inputted to the second sun gear 21 by input link 5, and is transferred to the second gear ring 22 by the second planetary gear set 24, First clutch C1 is closed, and power is transferred to the third line carrier 33, then is transferred to the 3rd gear ring 32 by the third line star-wheel group 34, most Outputed power eventually by output link 6；Therefore, the gearratio of 2 gears is：

I2=[K1 × (1+K2+K3)+K2 × K3]/[(K1-1) × (1+K3)].

With reference to shown in table one and attached drawing 4, when first clutch C1 and the 3rd clutch C3 is closed at, it can input The 3rd forward speed ratio (3 gear), in 3 gears, first clutch C1 closures, by the second tooth are produced between component 5 and output link 6 Circle 22 is connected with the third line carrier 33, and the 3rd clutch C3, which is closed, causes the 3rd sun gear 31 to be connected with input link 5, therefore, As attached drawing 4 is shown in solid, three power transmission lines are generated under 3 gears, wherein first is：Power is by input link 5 Input is transferred to the second planet carrier 23 to the second sun gear 21, and by the second planetary gear set 24, then is passed by the second planet carrier 23 The first planet carrier 13 is handed to, the first gear ring 12 is then transferred to by the first inner planets round group 14 and the first outer planet round group 15, most Outputed power eventually by output link 6；Article 2 is：Power is inputted to the second sun gear 21, and by the second row by input link 5 Star-wheel group 24 is transferred to the second gear ring 22, first clutch C1 closures, and power is transferred to the third line carrier 33, then by third planet Wheel group 34 is transferred to the 3rd gear ring 32, is finally outputed power by output link 6；Article 3 is：Power is defeated by input link 5 Enter, the 3rd sun gear 31 be transferred to through the 3rd clutch C3, then the 3rd gear ring 32 is transferred to by the third line star-wheel group 34, finally by 3rd gear ring 32 is transferred to output link 6 and outputs power；Therefore, the transmission speed ratio of 3 gears is：

I3=[K1 × (1+K2+K3)+K2 × K3]/[(K1-1) × (1+K2+K3)].

With reference to shown in table one and attached drawing 5, when first clutch C1 and second clutch C2 is closed at, it can input The 4th forward speed ratio (4 gear), in 4 gears, first clutch C1 and second clutch C2 are produced between component 5 and output link 6 It is closed at so that the overall revolution of the second planet row 2 and input link 5 inputs power, therefore, and as attached drawing 5 is shown in solid, 4 The power transmission line of gear is：Power is inputted by input link 5, and power is transmitted the first row through the overall revolution of the second planet row 2 Carrier 13, is then transferred to the first gear ring 12, finally by output structure by the first inner planets round group 14 and the first outer planet round group 15 Part 6 outputs power；Therefore, the transmission speed ratio of 4 gears is：I4=K1/ (K1-1).

, can be defeated when the clutch C3 processed of second clutch C2 and the 3rd are closed at reference to shown in table 1 and attached drawing 6 Enter to produce the 5th forward speed ratio (5 gear) between component 5 and output link 6, in 5 gears, the first clutch C1 is disconnected so that the first row Star row 1 and the idle running of the second planet row 2 are not involved in power transmission, and second clutch C2 and the 3rd clutch C3 are closed at so that the Three planet rows 3 input power as an Integral synchronous revolution with input link 5, then are outputed power by output link 6, because This, 5 gear direct gears, its transmission speed ratio i5=1.

With reference to shown in table 1 and attached drawing 7, when second clutch C2 and second brake B2 is closed at, it can input The 6th forward speed ratio (6 gear) is produced between component 5 and output link 6, as attached drawing 7 is shown in solid, in 6 gears, the first clutch C1 Disconnect so that the first planet row 1 and the idle running of the second planet row 2 are not involved in power transmission, second clutch C2 closures so that the 3rd Planet carrier 33 is connected with input link 5, and second brake B2 closures brake the 3rd sun gear 31, therefore, the power transmission of 6 gears Route is：Power is inputted by input link 5 and is transferred to the third line carrier 33 through second clutch C2, then through the third line star-wheel group 34 The 3rd gear ring 32 is transferred to, being finally transferred to output link 6 by the 3rd gear ring 32 outputs power, therefore, the transmission speed of 6 gears Than：I6=K3/ (1+K3).

With reference to shown in table 1 and attached drawing 8, when the first brake B1 and the 3rd clutch C3 is closed at, it can input A reverse speed ratios (R gears) is produced between component 5 and output link 6, in R gears, the first clutch C1 is disconnected so that the first planet 1 and second idle running of planet row 2 of row is not involved in power transmission, and the first brake B1, which is closed, causes the third line carrier 33 to be braked, the Three clutch C3 are closed so that the 3rd sun gear 31 is connected with input link 5, therefore, such as the power that attached drawing 8 is shown in solid, and R is kept off Transfer route is：Power is inputted by input link 5, and the 3rd sun gear 31 is transferred to through the 3rd clutch C3, then through third planet Power is transferred to the 3rd gear ring 32 by wheel group 34, and being finally transferred to output link 6 by the 3rd gear ring 32 outputs power, therefore, R The transmission speed ratio of gear：IR=-K3.

Table 1

Identical in order to solve the problems, such as, the utility model embodiment additionally provides a kind of vehicle, including any of the above-described implementation Three planet row automatic transmission of example.

In conclusion the three planet row automatic transmission of the utility model, employ three clutches and two brakes The connection scheme that is combined as operating element with three planet rows is, it can be achieved that selection only with two operating elements therein Property the multiple combinations mode that closes, you can produce multiple (six forward speed ratios and a reverse speed ratios) speed ratio shifts；And adopt By the use of relatively fewer (two) brake as operating element, the processing and manufacturing difficulty of babinet can be greatly decreased, ensureing babinet Intensity in the case of be conducive to babinet light-weight design manufacture；In addition, clutch can be conducive to using more clutch The nested designs of device so that the structure of speed changer is compacter, and can be conducive between planet row is broken in specific gear incision Connection relation so that the planet row of redundancy dallies without bearing torque or is not involved in rotating, to reduce the towing of planet row torsion Square, improves the transmission efficiency of speed changer.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and replacement can also be made, these change The scope of protection of the utility model is also should be regarded as into replacement.

Claims (10)

1. A kind of 1. three planet row automatic transmission, it is characterised in that including input link and output link, along same rotating shaft according to First, second, third planet row of secondary spread configuration, first, second, third clutch and first, second brake, its In, first planet row includes the first gear ring, intermeshing first inner planets round group and the first outer planet round group, first too Sun wheel and the first planet carrier；Second planet row includes the second gear ring, the second planetary gear set, the second sun gear and the second planet Frame；The third planet row includes the 3rd gear ring, the third line star-wheel group, the 3rd sun gear and the third line carrier；

   First sun gear is fixed, and first gear ring is fixedly connected with the output link, first planet carrier It is fixedly connected with second planet carrier, second gear ring is connected by the first clutch with the third line carrier, The input link is fixedly connected with second sun gear, and the input link passes through the second clutch and the described 3rd Planet carrier connects, and the input link is connected by the 3rd clutch with the 3rd sun gear, the 3rd gear ring and The output link is fixedly connected；

   First brake selectively closes off, and the third line carrier is braked, the second brake is optionally Closure, the 3rd sun gear is braked.
2. 2. three planet rows automatic transmission according to claim 1, it is characterised in that first sun gear and speed changer Babinet be fixedly connected.
3. 3. three planet rows automatic transmission according to claim 1, it is characterised in that in first planet row, institute State the first sun gear and the first inner planets round group external toothing, the first inner planets round group and the first outer planet round group External toothing, the first outer planet round group and the first gear ring internal messing, the first inner planets round group and the first outer planet round group It is installed on by bearing on the axis pin of the first planet carrier correspondence position.
4. 4. three planet rows automatic transmission according to claim 1, it is characterised in that in the second planet row, second too Sun wheel and the second planetary gear set external toothing, the second planetary gear set and the second gear ring internal messing, the second planetary gear set are pacified by bearing On the axis pin of the second planet carrier.
5. 5. three planet rows automatic transmission according to claim 1, it is characterised in that in third planet row, the 3rd too Sun wheel and the third line star-wheel group external toothing, the third line star-wheel group and the 3rd gear ring internal messing, the third line star-wheel group are pacified by bearing On the axis pin of the third line carrier.
6. 6. three planet rows automatic transmission according to claim 1, it is characterised in that one end of first brake with The babinet connection of speed changer, the other end are connected with the third line carrier.
7. 7. three planet rows automatic transmission according to claim 1, it is characterised in that one end of the second brake with The babinet connection of speed changer, the other end are connected with the 3rd sun gear.
8. 8. three planet rows automatic transmission according to claim 1, it is characterised in that described first, second and third from Clutch is multiple-piece wet clutch or dog clutch.
9. 9. three planet rows automatic transmission according to claim 1, it is characterised in that when the first clutch with it is described When first brake is closed at, first forward speed ratio can be produced between the input link and output link；

   , can be between the input link and output link when the first clutch and the second brake are closed at Produce second forward speed ratio；

   , can be between the input link and output link when the first clutch and the 3rd clutch are closed at Produce the 3rd forward speed ratio；

   , can be between the input link and output link when the first clutch and the second clutch are closed at Produce the 4th forward speed ratio；

   , can be between the input link and output link when the second clutch and the 3rd clutch are closed at Produce the 5th forward speed ratio；

   , can be between the input link and output link when the second brake and the second clutch are closed at Produce the 6th forward speed ratio；

   , can be between the input link and output link when first brake and the 3rd clutch are closed at Produce a reverse speed ratios.
10. 10. a kind of vehicle, it is characterised in that including such as three planet row automatic transmission of claim 1 to 9 any one of them.