CN206246613U - A kind of crawler dozer speed changer - Google Patents
A kind of crawler dozer speed changer Download PDFInfo
- Publication number
- CN206246613U CN206246613U CN201621370374.3U CN201621370374U CN206246613U CN 206246613 U CN206246613 U CN 206246613U CN 201621370374 U CN201621370374 U CN 201621370374U CN 206246613 U CN206246613 U CN 206246613U
- Authority
- CN
- China
- Prior art keywords
- brake
- gear
- gear ring
- planet
- speed changer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2015—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with five sets of orbital gears
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2043—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with five engaging means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2046—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with six engaging means
Abstract
The utility model is related to bull-dozer technical field, more particularly to a kind of crawler dozer speed changer.A kind of crawler dozer speed changer, including engine, engine is connected with yielding coupling, yielding coupling is connected with fluid torque-converter, and fluid torque-converter is connected with input shaft, and two planet rows are provided with input shaft, also include output shaft, three planet rows are provided with output shaft, fourth line carrier is fixedly connected with the 3rd gear ring, and fifth line carrier is fixedly connected with the 4th gear ring.The utility model is fixedly connected by by fourth line carrier with the 3rd gear ring, fifth line carrier is fixedly connected with the 4th gear ring, solve the problems, such as that element is easily damaged on each planet row on output shaft, significantly improve the reliability of crawler dozer speed changer and increase its life-span.Additionally, effectively prevent the problems such as fault rate brought by rotary clutch is high, requirement on machining accuracy is high.
Description
Technical field
The utility model is related to bull-dozer technical field, more particularly to a kind of crawler dozer speed changer.
Background technology
In today's society, with the development and the progress of technology of society, people are to the comfortableness of Work machine of walking and can
Required more and more higher by property.In order to improve the comfortableness of crawler dozer, improve the power performance of crawler dozer, warp
Frequently with planetary power-shift transmission as the rotating speed for changing crawler dozer engine and the mechanism of torque, its advantage
It is light simple manipulation.
With low gear using in the majority when crawler dozer works, wherein speed changer forward gear and two gears that advance is using most
It is many.In actual use, the element in crawler dozer speed changer on output shaft upper planet row is often damaged, so as to lead
The short life of speed changer is caused, and difficulty is dismounted when repairing, waste more human and material resources and time, normal production work
Can therefore be severely impacted, it is totally unfavorable for producing.Even more serious situation, in the process of crawler dozer operation
It is central, due to the damage of the element on speed changer, cause gear shifting action normally to realize, so that operating personnel or shoe
Personnel, equipment or building near belt bull-dozer sustain damage or damage, and bring huge personnel or economic loss.
Crawler dozer operating mode is severe, and load change is big, and speed changer needs the very big moment of torsion of transmission, and needs frequent
Withstand shocks load, very high to its reliability requirement.So need one kind to be proposed badly can reduce on output shaft upper planet row
Each component wear, and simple structure, low cost, efficiency high crawler dozer speed changer.
Utility model content
Those skilled in the art in the middle of the process using crawler dozer speed changer, arrange by transmission output shaft upper planet
On element occur the phenomenon of regular damage, technical staff is explored and is tested by prolonged, is found because carrying out
With low gear using in the majority when belt bull-dozer works, wherein speed changer forward gear and two gears that advance using most, turn round by transmission
Square is maximum, and planet row element stress is big, and a gear brake moment of torsion is also big, due to being delivered to output shaft upper planet from input shaft
The power and moment of torsion of each element is not very few by shunting or shunting on row, so as to cause output shaft upper planet to arrange upper each yuan
Power and moment of torsion on part are excessively concentrated.Realize the shunting of the power and moment of torsion transmitted on output shaft on each planet row on output shaft
It is the method for reducing the regular damage of element, is remarkably improved the reliability of bull-dozer speed changer and increases its life-span.
The purpose of this utility model is to propose a kind of crawler dozer speed changer for bull-dozer gearshift, can be reduced
On output shaft on each planet row each element damage, and simple structure, low cost, efficiency high.
It is that, up to this purpose, the utility model uses following technical scheme：
A kind of crawler dozer speed changer, including engine, the engine are connected with yielding coupling, the elasticity
Shaft coupling is connected with fluid torque-converter, and the fluid torque-converter is connected with input shaft, the first planet is provided with the input shaft
Row and the second planet row, also including output shaft, are provided with third planet row, fourth planet row and fifth line star on the output shaft
Row, the 3rd gear ring, the third line star-wheel, the 3rd sun gear and the third line carrier, the described 4th are provided with the third planet row
The 4th gear ring, fourth line star-wheel, the 4th sun gear and fourth line carrier are provided with planet row, are set on the fifth line star row
There are the 5th gear ring, fifth line star-wheel, the 5th sun gear and fifth line carrier, the fourth line carrier is fixed with the 3rd gear ring
Connection, the fifth line carrier is fixedly connected with the 4th gear ring.
Used as a kind of preferred scheme of crawler dozer speed changer, the first planet row left side is provided with the first braking
Device, the second planet row outside is provided with second brake, and first brake and second brake are direction controlling system
Dynamic device, the exclusive side of third planet is provided with the 3rd brake, and the exclusive side of fourth planet is provided with the 4th brake, institute
State the exclusive side of fifth line star and be provided with the 5th brake, the 3rd brake, the 4th brake and the 5th brake are gear
Control brake；It is any one with shift control brake by the engagement of any one in control direction control brake simultaneously
Individual engagement, realizes the different gear of the crawler dozer speed changer.
Used as a kind of preferred scheme of crawler dozer speed changer, first planet row includes the first sun gear, the
One planet carrier, the first planetary gear and the first gear ring；Second planet row includes the second sun gear, the second gear ring, the second planet
Frame and the second planetary gear.
As a kind of preferred scheme of crawler dozer speed changer, the first sun gear, institute are connected with the input shaft
State the first sun gear to be meshed with first planetary gear, first planet carrier be rotatably connected on first planetary gear,
First planet carrier is connected with first brake；First planetary gear is meshed with first gear ring, described
First gear ring is fixedly connected with second planet carrier；
Second planet row is arranged on the first planet row right side, and second sun gear is fixedly connected on described defeated
Enter on axle, second sun gear is meshed with second planetary gear, described is rotatably connected on second planetary gear
Two planet carriers, second planetary gear is meshed with second gear ring, and second gear ring is connected with the second brake
Connect；
The third planet row is arranged on the second planet row right side, and the 3rd sun is fixedly connected with the output shaft
Wheel, the 3rd sun gear is meshed with the third line star-wheel, and the third line carrier is rotatably connected on the third line star-wheel,
The third line carrier is fixedly connected with second planet carrier, and the third line star-wheel is meshed with the 3rd gear ring, institute
The 3rd gear ring is stated to be connected with the 3rd brake；
The fourth planet row is arranged on the third planet row right side, and the 4th sun is fixedly connected with the output shaft
Wheel, the 4th sun gear is meshed with the fourth line star-wheel, and fourth line carrier is rotatably connected on the fourth line star-wheel,
The fourth line carrier is fixedly connected with the 3rd gear ring, and the fourth line star-wheel is meshed with the 4th gear ring, described
4th gear ring is connected with the 4th brake；
The fifth line star row is arranged on the fourth planet row right side, and the 5th sun is fixedly connected with the output shaft
Wheel, the 5th sun gear is meshed with the fifth line star-wheel, and fifth line carrier is rotatably connected on the fifth line star-wheel,
The fifth line carrier is fixedly connected with the 4th gear ring, and the fifth line star-wheel is meshed with the 5th gear ring, described
5th gear ring is connected with the 5th brake.
Used as a kind of preferred scheme of crawler dozer speed changer, the second brake and the 5th brake are same
When engage, second gear ring and the 5th gear ring are fixed respectively, the crawler dozer speed changer realizes advancing one
Gear.
Used as a kind of preferred scheme of crawler dozer speed changer, the second brake and the 4th brake are same
When engage, second gear ring and the 4th gear ring are fixed respectively, the crawler dozer speed changer realizes advancing two
Gear.
Used as a kind of preferred scheme of crawler dozer speed changer, the second brake and the 3rd brake are same
When engage, second gear ring and the 3rd gear ring are fixed respectively, the crawler dozer speed changer realizes ahead three
Gear.
Used as a kind of preferred scheme of crawler dozer speed changer, first brake and the 5th brake are same
When engage, first planet carrier and the 5th gear ring are fixed respectively, the crawler dozer speed changer is realized retreating
One gear.
Used as a kind of preferred scheme of crawler dozer speed changer, the 4th brake described in first brake is simultaneously
Engagement, respectively fixes first planet carrier and the 4th gear ring, and the crawler dozer speed changer is realized retreating two
Gear.
Used as a kind of preferred scheme of crawler dozer speed changer, first brake and the 3rd brake are same
When engage, first planet carrier and the 3rd gear ring are fixed respectively, the crawler dozer speed changer is realized retreating
Three gears.
Used as a kind of preferred scheme of crawler dozer speed changer, the 5th brake is engaged, and remaining brake is
Stationary state is released, the crawler dozer speed changer realizes neutral.
Used as a kind of preferred scheme of crawler dozer speed changer, the characterisitic parameter of first planet row is 2.529；
The characterisitic parameter of second planet row is 2.068；The characterisitic parameter of the third planet row is 4.684；The fourth planet
The characterisitic parameter of row is 3.138；The characterisitic parameter of the fifth line star row is 2.460.
As a kind of preferred scheme of crawler dozer speed changer, first brake, second brake, the 3rd system
Dynamic device, the 4th brake and the 5th brake are wet multi-plate brake.
Used as a kind of preferred scheme of crawler dozer speed changer, the engine is Diesel engine.
The beneficial effects of the utility model are：
The utility model proposes crawler dozer speed changer, connected by the way that fourth line carrier and the 3rd gear ring are fixed
Connect, fifth line carrier is fixedly connected with the 4th gear ring, realizes shunting action, reduce and be delivered to output shaft upper planet row above respectively
The power and moment of torsion of individual element, it is to avoid power and moment of torsion on upper each element of output shaft upper planet row are excessively concentrated.Realize output
The power and moment of torsion transmitted on axle are shunted on each planet row on output shaft, each unit on each planet row on reduction output shaft
The damage of part, significantly improves the reliability of crawler dozer speed changer and increases its life-span, and simple structure reduces power
Consumption, increases the transmission efficiency of gearshift crawler dozer speed changer.Meanwhile, work as in the process of operation in crawler dozer
In, delayed works, unnecessary casualties and wealth caused by the damage due to crawler dozer speed changer can be avoided
Business loss.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the utility model embodiment, below will be to the utility model embodiment
The accompanying drawing to be used needed for description is briefly described, and drawings in the following description are only some implementations of the present utility model
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to the utility model
The content of embodiment and these accompanying drawings obtain other accompanying drawings.
Fig. 1 is the structural representation of the crawler dozer speed changer that the utility model specific embodiment is provided；
Fig. 2 is the crawler dozer speed changer forward gear power transmission road that the utility model specific embodiment is provided
Line；
Fig. 3 is that the crawler dozer speed changer advance two that the utility model specific embodiment is provided keeps off power transmission roads
Line；
Fig. 4 is the crawler dozer speed changer ahead three gear power transmission road that the utility model specific embodiment is provided
Line；
Fig. 5 is that the crawler dozer speed changer that the utility model specific embodiment is provided retreats a gear power transmission road
Line；
Fig. 6 is that the crawler dozer speed changer that the utility model specific embodiment is provided retreats two gear power transmission roads
Line；
Fig. 7 is that the crawler dozer speed changer that the utility model specific embodiment is provided retreats three gear power transmission roads
Line.
Marked in figure as follows：
1- input shafts；2- output shafts；The planet rows of 3- first；The planet rows of 4- second；5- third planets are arranged；6- fourth planets
Row；7- fifth line star is arranged；8- engines；9- yielding couplings；10- fluid torque-converters；
The brakes of 30- first；The sun gears of 31- first；The planetary gears of 32- first；The planet carriers of 33- first；The gear rings of 34- first；
40- second brakes；The sun gears of 41- second；The planetary gears of 42- second；The planet carriers of 43- second；The gear rings of 44- second；
The brakes of 50- the 3rd；The sun gears of 51- the 3rd；52- the third line star-wheels；53- the third line carrier；The gear rings of 54- the 3rd；
The brakes of 60- the 4th；The sun gears of 61- the 4th；62- fourth line star-wheels；63- fourth line carrier；The gear rings of 64- the 4th；
The brakes of 70- the 5th；The sun gears of 71- the 5th；72- fifth line star-wheels；73- fifth line carrier；The gear rings of 74- the 5th.
Specific embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings and pass through
Specific embodiment further illustrates the technical solution of the utility model.
It is as shown in Figure 1 a kind of crawler dozer speed changer that this specific embodiment is provided, including engine 8, hair
Motivation 8 is connected with yielding coupling 9, and yielding coupling 9 is connected with fluid torque-converter 10, and fluid torque-converter 10 is connected with input shaft
1, the first planet row 3 and the second planet row 4 are provided with input shaft 1, the first planet row 3 includes the first sun gear 31, the first row
Carrier 33, the first planetary gear 32 and the first gear ring 34, the second planet row 4 include the second sun gear 41, the second gear ring 44, the second row
The planetary gear 42 of carrier 43 and second, also including output shaft 2, is provided with third planet row 5, fourth planet row 6 and the on output shaft 2
Five planet rows 7, the 3rd gear ring 54, the third line star-wheel 52, the 3rd sun gear 51 and the third line carrier are provided with third planet row 5
53, it is provided with the 4th gear ring 64, fourth line star-wheel 62, the 4th sun gear 61 and fourth line carrier 63, the 5th on fourth planet row 6
The 5th gear ring 74, fifth line star-wheel 72, the 5th sun gear 71 and fifth line carrier 73, fourth line carrier are provided with planet row 7
63 are fixedly connected with the 3rd gear ring 54, and fifth line carrier 73 is fixedly connected with the 4th gear ring 64.
The left side of first planet row 3 is provided with the first brake 30, and the outside of the second planet row 4 is provided with second brake 40,
First brake 30 and second brake 40 are direction controlling brake, and the outside of third planet row 5 is provided with the 3rd brake 50,
The outside of fourth planet row 6 is provided with the 4th brake 60, and the outside of fifth line star row 7 is provided with the 5th brake 70, the 3rd braking
Device 50, the 4th brake 60 and the 5th brake 70 are shift control brake.
By appointing in any one engagement and control shift control brake in control direction control brake simultaneously
The engagement of meaning one, realizes the different gear regulation of crawler dozer speed changer.Wherein the first brake 30 controls retreating gear,
Second brake 40 controls forward gear, and the control of the 3rd brake 50 three keeps off, and the control of the 4th brake 60 two keeps off, the 5th brake 70
Control one keeps off.
The connected mode of element and brake on this crawler dozer speed changer on each planet row is, input shaft 1
On be connected with the first sun gear 31, the first sun gear 31 is meshed with the first planetary gear 32, on the first planetary gear 32 rotate connection
There is the first planet carrier 33, the first planet carrier 33 is connected with the first brake 30；First planetary gear 32 is mutually nibbled with the first gear ring 34
Close, the first gear ring 34 is fixedly connected with the second planet carrier 43.
Second planet row 4 is arranged on the right side of the first planet row 3, and the second sun gear 41 is fixedly connected on input shaft 1, and second
Sun gear 41 is meshed with the second planetary gear 42, and the second planet carrier 43, the second planetary gear are rotatably connected on the second planetary gear 42
42 are meshed with the second gear ring 44, and the second gear ring 44 is connected with second brake 40.
Third planet row 5 is arranged on the right side of the second planet row 4, and the 3rd sun gear 51, the 3rd are fixedly connected with output shaft 2
Sun gear 51 is meshed with the third line star-wheel 52, and the third line carrier 53, the third line carrier are rotatably connected on the third line star-wheel 52
53 are fixedly connected with the second planet carrier 43, and the third line star-wheel 52 is meshed with the 3rd gear ring 54, and the 3rd gear ring 54 and the 3rd is braked
Device 50 is connected.
Fourth planet row 6 is arranged on the right side of third planet row 5, and the 4th sun gear 61, the 4th are fixedly connected with output shaft 2
Sun gear 61 is meshed with fourth line star-wheel 62, and fourth line carrier 63, fourth line carrier are rotatably connected on fourth line star-wheel 62
63 are fixedly connected with the 3rd gear ring 54, and fourth line star-wheel 62 is meshed with the 4th gear ring 64, the 4th gear ring 64 and the 4th brake
60 are connected.
Fifth line star row 7 is arranged on the right side of fourth planet row 6, and the 5th sun gear 71, the 5th are fixedly connected with output shaft 2
Sun gear 71 is meshed with fifth line star-wheel 72, and fifth line carrier 73, fifth line carrier are rotatably connected on fifth line star-wheel 72
73 are fixedly connected with the 4th gear ring 64, and fifth line star-wheel 72 is meshed with the 5th gear ring 74, the 5th gear ring 74 and the 5th brake
70 are connected.
Forward gear：The brake 70 of second brake 40 and the 5th is simultaneously engaged with, respectively by the second gear ring 44 and the 5th tooth
Circle 74 is fixed, and crawler dozer speed changer realizes forward gear.
The brake 70 of second brake 40 and the 5th is set to turn into stationary state, remaining brake is releasing stationary state；It is logical
Second brake 40 is crossed as stationary state, the rotary speed of the second gear ring 44 on the second planet row 4 is 0；By the 5th system
Dynamic device 70 turns into stationary state, and the rotary speed of the 5th gear ring 74 on fifth line star row 7 is 0.
As shown in Fig. 2 forward gear power transmission line：Input shaft 1 on crawler dozer speed changer is delivered to
Two sun gears 41, due to the braking of the second gear ring 44, power is delivered on the second planet carrier 43 by the second planetary gear 42.Power is passed
It is delivered to this and is divided into three tunnels and is delivered to output shaft 2, the first route：Power is transmitted by the third line star-wheel 52 from the third line carrier 53
To the 3rd gear ring 54, the 4th gear ring 64 is then passed to by fourth line star-wheel 62, be then delivered to by fifth line star-wheel 72
5th sun gear 71, that is, be delivered on output shaft 2；Second route：Pass through the third line star-wheel 52 by power from the third line carrier 53
The 3rd gear ring 54 is passed to, the 4th sun gear 61 is then passed to by fourth line star-wheel 62, that is, be delivered on output shaft 2；The
Three-route：The 3rd sun gear 51 is transferred power to by the third line star-wheel 52 from the third line carrier 53, that is, is delivered to output shaft
2.Transmission power is can be seen that from power transfer route arrange 5, fourth planet row 6 and fifth line star row in third planet with reference to Fig. 2
7 are divided into the transmission of three tunnels, merge output on output shaft 2 eventually, and can be distributed in for active force and moment of torsion defeated by this power transmission line
On each planet row on shaft 2, make the stress and moment of torsion of each planet row on output shaft 2 will not be excessive, while the 5th braking
The braking moment of device 70 also can accordingly reduce.Crawler dozer is operationally most using forward gear soil-shifting operating mode, crawler belt
Formula bull-dozer speed changer transmits power and moment of torsion is maximum, and the structure of this power dividing can effectively mitigate third planet row the 5, the 4th
Planet row 6 and the stress and suffered moment of torsion of fifth line star row 7, also can increase the torque capacity of the 5th brake 70, improve and carry out
The reliability of belt bull-dozer speed changer.Realize that the power and moment of torsion transmitted on output shaft are carried out on each planet row on output shaft
Shunting, reduces the damage of each element on each planet row on output shaft, significantly improves the reliability of crawler dozer speed changer
Property and increase its life-span, simple structure reduces power consumption, increase gearshift crawler dozer speed changer transmission effect
Rate.Meanwhile, in crawler dozer in the middle of the process of operation, damage due to crawler dozer speed changer can be avoided and
Caused delayed works, unnecessary casualties and financial losses.
With transmission input torque as 1700Nm, characterisitic parameter k is the ratio between the planet row gear ring number of teeth and sun gear number of teeth,
The characterisitic parameter of the first planet row 3 is 2.529, and the characterisitic parameter of the second planet row 4 is 2.068, the characteristic ginseng of third planet row 5
Number is 4.684, and the characterisitic parameter of fourth planet row 6 is 3.138, and the characterisitic parameter of fifth line star row 7 is as a example by 2.460, to calculate
Third planet row 5, fourth planet row 6 and moment of torsion suffered by fifth line star row 7 on output shaft 2.
Three primary elements of planet row：Sun gear, gear ring, planet carrier represent that its moment of torsion is used respectively with s, r, c respectively
Ms, Mr, Mc represent that planetary gear is represented with p, and the theoretical internal torque relational expression of planet row is：
Ms:Mr:Mc=1:k:-(1+k)
If gearbox has has 3 internal torques in n planet row, each planet row, make on whole gearbox planetary mechanism
Outer moment of torsion has input torque Mi, output torque MoAnd controls action torque Mb.It is the gearbox of F for the free degree, for
To certain gearratio, the manipulation number of packages of effect is equal to F-1, in summary understands, after putting into gear, co-exists in 3n+2n+ (F-1)
=3n+F+1 torque value.
1) n theoretical internal torque relational expression is listed
2) the m equation of static equilibrium is listed with each rotating member as body is departed from
Due to free degree F=rotating member number m- planet row n, therefore equation of static equilibrium number is m=F+n.
In summary total moment of torsion equation number is 2n+m=2n+F+n=3n+F, it is known that input torque Mi, solve above-mentioned side
Journey group can obtain all torque values.
The moment of torsion suffered by each element on fifth line star row 7 is calculated, when the input torque of input shaft 1 is 1700Nm,
Moment of torsion M suffered by 5th sun gear 71s5=942Nm, the moment of torsion M suffered by fifth line carrier 73c5=-3260Nm, the
Moment of torsion M suffered by five gear rings 74r5=-2317Nm, the moment of torsion M suffered by the 5th brake 70b5=2317Nm.
The speed changer of other type of belt drive of the contrast with identical planet row characterisitic parameter, three on fifth line star row 7
The braking moment of moment of torsion and the 5th brake 70 suffered by primary element reduces more than 18%.
The moment of torsion suffered by each element on fourth planet row 6 is calculated, when the input torque of input shaft 1 is 1700Nm,
Moment of torsion M suffered by 4th sun gear 61s4=1039Nm, the moment of torsion M suffered by fourth line carrier 63c4=-4298Nm,
Moment of torsion M suffered by 4th gear ring 64r4=3259Nm.
The crawler dozer speed changer of other type of belt drive of the contrast with identical planet row characterisitic parameter, fourth planet
Three primary element torques on row 6 reduce 18%.
The moment of torsion suffered by each element on third planet row 5 is calculated, when the input torque of input shaft 1 is 1700Nm,
Moment of torsion M suffered by 3rd sun gear 51s3=918Nm, the moment of torsion M suffered by the third line carrier 53c3=-5216Nm, the
Moment of torsion M suffered by three gear rings 54r3=4298Nm.
The output torque of output shaft 2 is：Mo=-(Ms3+Ms4+Ms5)=(918+1039+942)=- 2899Nm
Advance two gears：The brake 60 of second brake 40 and the 4th is simultaneously engaged with, respectively by the second gear ring 44 and the 4th tooth
Circle 64 is fixed, and crawler dozer speed changer realizes two gears that advance.Now, the brake 60 of second brake 40 and the 4th turns into solid
Determine state, remaining brake is releasing stationary state；Stationary state, the rotation of the second gear ring 44 are turned into by second brake 40
Speed is 0；Stationary state is turned into by the 4th brake 60, the rotary speed of the 4th gear ring 64 is 0.
As shown in figure 3, the two gear power transmission lines that advance：Power is delivered to the second sun gear 41 from input shaft 1, due to
Two gear rings 44 are braked, so power is delivered on the second planet carrier 43 by the second planetary gear 42.Power is delivered to this and is divided into two tunnels
It is delivered to output shaft 2, the first route：The 3rd gear ring 54 is imparted power to by the third line star-wheel 52 from the third line carrier 53,
Because the 4th brake 60 is braked, the speed of the 4th gear ring 64 is 0, and power passes to the 4th sun gear by fourth line star-wheel 62
61, that is, it is delivered to output shaft 2.Second route：From the third line carrier 53 the 3rd is transferred power to by the third line star-wheel 52 too
On sun wheel 51, that is, it is delivered to output shaft 2.Transmission power is can be seen that from transfer route ranked third planet row in planet with reference to Fig. 3
5 and fourth planet row 6 be divided into two tunnels transmission, finally on output shaft 2 merge output, this power transmission line can be by active force
It is distributed on third planet row 5 and fourth planet row 6, makes the stress of each planet row will not be excessive, while the 4th brake 60
Braking moment also can accordingly reduce.Bull-dozer operationally uses more than second using two gear soil-shifting operating modes of advancing, and speed changer is passed
Pass that power is also very big, the structure of this power dividing can effectively mitigate the stress of third planet row 5 and fourth planet row 6, also may be used
Increase the torque capacity of the 4th brake 60, improve the reliability of speed changer.
When two gears is advanced, the moment of torsion suffered by each element on fourth planet row 6 is calculated, when the input torque of input shaft 1
During for 1700Nm, the moment of torsion M suffered by the 4th sun gear 61s4=1039Nm, the moment of torsion M suffered by fourth line carrier 63c4
=-4298Nm, the moment of torsion M suffered by the 4th gear ring 64r4=3260Nm, the moment of torsion M suffered by the 4th brake 60b4=-
3260N·m。
The speed changer of other type of belt drive of the contrast with identical planet row characterisitic parameter, three on fourth planet row 6
Primary element torque and brake B4 braking moments reduce more than 18%.
Calculate third planet and arrange 5 stress, when the input torque of input shaft 1 is 1700Nm, suffered by the 3rd sun gear 51
Moment of torsion Ms3=918Nm, the moment of torsion M suffered by the third line carrier 53c3=-5216Nm, the torsion suffered by the 3rd gear ring 54
Square Mr3=4298Nm.
The output torque of output shaft 2 is：
Mo=-(Ms3+Ms4)=- (918+1039)=- 1957Nm
Ahead three keeps off：The brake 50 of second brake 40 and the 3rd is simultaneously engaged with, respectively by the second gear ring 44 and the 3rd tooth
Circle 54 is fixed, and crawler dozer speed changer realizes that ahead three keeps off.
The brake 50 of second brake 40 and the 3rd is set to turn into stationary state, remaining brake is releasing stationary state；It is logical
Second brake 40 is crossed as stationary state, the rotary speed of the second gear ring 44 is 0.Fixing shape is turned into by the 3rd brake 50
State, the rotary speed of the 3rd gear ring 54 is 0.
As shown in figure 4, ahead three gear power transmission line：Power is delivered on the second sun gear 41 from input shaft 1, due to
Second gear ring 44 is braked, so power is delivered on the second planet carrier 43 by the second planetary gear 42.3rd brake 50 makes the 3rd
Gear ring 54 is braked, and the third line carrier 53 transfers power to the 3rd sun gear 51 by the third line star-wheel 52, that is, be delivered to output
On axle 2.Power is can be seen that from transfer route ranked second the transmission on planet row 4 and third planet row 5 in planet with reference to Fig. 4
Situation.
One is retreated to keep off：First brake 30 and the 5th brake 70 are simultaneously engaged with, respectively by the first planet carrier 33 and the 5th
Gear ring 74 is fixed, and crawler dozer speed changer realizes that retreating one keeps off.
The first brake 30 and the 5th brake 70 is set to turn into stationary state, remaining brake is releasing stationary state；It is logical
Crossing the first brake 30 turns into stationary state, and the rotary speed of the first planet carrier 33 is 0；Turned into by the 5th brake 70 and fixed
State, the rotary speed of the 5th gear ring 74 is 0.
As shown in figure 5, retreating one keeps off power transmission line：Power is delivered to the first sun gear 31 from input shaft 1, due to
The braking of one planet carrier 33, so power is delivered on the first gear ring 34 by the first planetary gear 32.Power is delivered to this and is divided into three
Road is delivered to output shaft 2, the first route：The 3rd gear ring is imparted power to by the third line star-wheel 52 from the third line carrier 53
54, the 4th gear ring 64 is then passed to by fourth line star-wheel 62, the 5th sun gear is then delivered to by fifth line star-wheel 72
71, that is, it is delivered on output shaft 2；Second route：From the third line carrier 53 the 3rd is imparted power to by the third line star-wheel 52
Gear ring 54, then passes to the 4th sun gear 61 by fourth line star-wheel 62, that is, be delivered on output shaft 2；Three-route：From
Three planet carriers 53 transfer power to the 3rd sun gear 51 by the third line star-wheel 52, that is, be delivered on output shaft 2.With reference to Fig. 5
From transfer route as can be seen that transmission power arranges 5, fourth planet row 6 in third planet and fifth line star row 7 is divided into three tunnels and passes
Pass, output is finally merged on output shaft 2, this power transmission line can make defeated by distribution of forces on three planet rows
The stress of each planet row on shaft 2 will not be excessive, while the braking moment of the 5th brake 70 also can accordingly reduce.It is this
The structure of power dividing can effectively mitigate the stress of each planet row on output shaft 2, can also make the moment of torsion of the 5th brake 70
Capacity increases, and improves the reliability of speed changer.Realize the power and moment of torsion of transmission on output shaft on each planet row on output shaft
Shunted, reduced the damage of each element on each planet row on output shaft, significantly improved crawler dozer speed changer
Reliability simultaneously increases its life-span, and simple structure reduces power consumption, increases the transmission of gearshift crawler dozer speed changer
Efficiency.Meanwhile, in crawler dozer in the middle of the process of operation, can avoid due to the damage of crawler dozer speed changer
Caused by delayed works, unnecessary casualties and financial losses.
The moment of torsion suffered by each element on fifth line star row 7 is calculated, when the input torque of input shaft 1 is 1700Nm,
Moment of torsion M suffered by 5th sun gear 71s5=-777Nm, the moment of torsion M suffered by fifth line carrier 73c5=2687Nm, the
Moment of torsion M suffered by five gear rings 74r5=-1910Nm, the moment of torsion M suffered by the 5th brake 70b5=1910Nm.
The crawler dozer speed changer of other type of belt drive of the contrast with identical planet row characterisitic parameter, fifth line star
The braking moment for arranging the moment of torsion suffered by three primary elements on 7 and the 4th brake reduces 18%.
When a gear is retreated, the moment of torsion suffered by each element on fourth planet row 6 is calculated, in the input torque of input shaft 1
During for 1700Nm, the moment of torsion M suffered by the 4th sun gear 61s4=-856Nm, the moment of torsion M suffered by fourth line carrier 63c4
=3544Nm, the moment of torsion M suffered by the 4th gear ring 64r4=-2687Nm.
The crawler dozer speed changer of other type of belt drive of the contrast with identical planet row characterisitic parameter, fourth planet
The moment of torsion suffered by three primary elements on row 6 reduces 18%.
The moment of torsion suffered by each element on third planet row 5 is calculated, when the input torque of input shaft 1 is 1700Nm,
Moment of torsion M suffered by 3rd sun gear 51s3=-756Nm, the moment of torsion M suffered by the third line carrier 53c3=4300Nm, the
Moment of torsion M suffered by three gear rings 54r3=-3544Nm.
The output torque of output shaft 2 is：
Mo=-(Ms+Ms4+Ms5)=- (- 777)-(- 856)-(- 756)=2389Nm
Two are retreated to keep off：The brake 60 of first brake 30 the 4th is simultaneously engaged with, respectively by the first planet carrier 33 and the 4th tooth
Circle 64 is fixed, and crawler dozer speed changer realizes that retreating two keeps off.
The first brake 30 and the 4th brake 60 is set to turn into stationary state, remaining brake is releasing stationary state；It is logical
Crossing the first brake 30 turns into stationary state, and the rotary speed of the first planet carrier 33 is 0；Turned into by the 4th brake 60 and fixed
State, the rotary speed of the 4th gear ring 64 is 0.
As shown in fig. 6, retreating two keeps off power transmission line：Power is delivered to the first sun gear 31 from input shaft 1, due to
One planet carrier 33 is braked, so power is delivered to the first gear ring 34 by the first planetary gear 32.Power is delivered to this and is divided into two tunnels biography
It is delivered to output shaft 2, the first route：The 3rd gear ring 54 is imparted power to by the third line star-wheel 52 from the third line carrier 53, is connect
And the 4th sun gear 61 is passed to by fourth line star-wheel 62, that is, be delivered to output shaft 2.Second route：From the third line carrier 53
3rd sun gear 51 is transferred power to by the third line star-wheel 52, that is, is delivered to output shaft 2.Can from transfer route with reference to Fig. 6
To find out, transmission power is divided into the transmission of two tunnels in third planet row 5 and fourth planet row 6, finally merges defeated on output shaft 2
Go out, this power transmission line can make each planet row by distribution of forces on third planet row 5 and fourth planet row 6
Stress will not be excessive, while the braking moment of the 4th brake 60 also can accordingly reduce.The structure of this power dividing can be effective
Mitigation third planet row 5 and fourth planet row 6 suffered by moment of torsion, the torque capacity of the 4th brake 60 can also increased,
Improve the reliability of speed changer.
The moment of torsion suffered by each element on fourth planet row 6 is calculated, when the input torque of input shaft 1 is 1700Nm,
Moment of torsion M suffered by 4th sun gear 61s4=-856Nm, the moment of torsion M suffered by fourth line carrier 63c4=3544Nm, the
Moment of torsion M suffered by four gear rings 64r4=-2687Nm, the moment of torsion M suffered by the 4th brake 60b4=2687Nm.
The crawler dozer speed changer of other type of belt drive of the contrast with identical planet row characterisitic parameter, fourth planet
The braking moment for arranging the moment of torsion suffered by three primary elements on 6 and the 4th brake 60 reduces 18%.
The moment of torsion suffered by third planet row 5 is calculated, when the input torque of input shaft 1 is 1700Nm, the 3rd sun gear
Moment of torsion M suffered by 51s3=-756Nm, the moment of torsion M suffered by the third line carrier 53c3=4300Nm, the institute of the 3rd gear ring 54
The moment of torsion M being subject tor3=-3544Nm.
The output torque of output shaft 2 is：
Mo=(Ms3+Ms4)=- (- 856)-(- 756)=1612Nm
Three are retreated to keep off：First brake 30 and the 3rd brake 50 are simultaneously engaged with, respectively by the first planet carrier 33 and the 3rd
Gear ring 54 is fixed, and crawler dozer speed changer realizes that retreating three keeps off.
The first brake 30 and the 3rd brake 50 is set to turn into stationary state, remaining brake is releasing stationary state；It is logical
Crossing the first brake 30 turns into stationary state, and the rotary speed of the first row planet carrier is 0；Turned into by the 3rd brake 50 and fixed
State, the rotary speed of the 3rd gear ring 54 is 0.
As shown in fig. 7, retreating three keeps off power transmission line：Power is delivered to the first sun gear 31 from input shaft 1, due to
One planet carrier 33 is braked, so power is delivered on the first gear ring 34 by the first planetary gear 32.The third line carrier 53 passes through the 3rd
Planetary gear 52 transfers power to the 3rd sun gear 51, that is, be delivered on output shaft 2, be can be seen that from transfer route with reference to Fig. 7
Power transfer route on the first planet row 3 and third planet row 5.
Neutral：The 5th brake 70 is set to turn into stationary state, remaining brake to release stationary state, then bulldoze by crawler type
The free degree of machine speed changer is changed into two, is exported without fixed, therefore do not transmit power.
When crawler dozer speed changer is started, when becoming a gear by neutral, need to only make the first brake 30 or the second system
Dynamic device 40 is turned into stationary state, can quickly be set up with speed change valve oil pressure, so that crawler dozer speed changer is quick
Start, reduce time delay.
First brake 30, second brake 40, the 3rd brake 50, the 4th brake 60 and the 5th brake 70 are
Wet multi-plate brake.Wet multi-plate brake is pacified by the interlaced arrangement of brake strip of some fixations and rotation
In the arrester shell body of the sealing filled with cooling oil, fixed friction piece is connected by external splines and brake casing, is turned
Movable friction plate is connected by internal spline with wheel hub, is rotated with wheel hub.When the fluid from brake valve enters into brake,
Brake piston just compresses the brake strip being staggered installation of, and wet multi-disc brake tool can prevent friction plate and compressing tablet direct
Contact, can minimize the abrasion between producing friction plate because of friction, stable work in work, it is not necessary to often adjustment, have
Service life more long.Due to eliminating rotary clutch structure, brake oil cylinder does not have clutch without rotatory sealing yet
Because rotation when produce centrifugal pressure hinder friction plate separate shortcoming, improve the reliability of speed changer, reduce and be manufactured into
This.
Note, general principle of the present utility model and principal character and of the present utility model excellent has been shown and described above
Point.It should be understood by those skilled in the art that, the utility model is not limited to the embodiments described above, and above-mentioned implementation method and says
Principle of the present utility model simply is illustrated described in bright book, on the premise of the utility model spirit and scope are not departed from, this
Utility model also has various changes and modifications, and these changes and improvements are both fallen within the range of claimed the utility model,
Claimed scope of the present utility model is by appending claims and its equivalent thereof.
Claims (7)
1. a kind of crawler dozer speed changer, including engine (8), the engine (8) is connected with yielding coupling (9),
The yielding coupling (9) is connected with fluid torque-converter (10), and the fluid torque-converter (10) is connected with input shaft (1), described
The first planet row (3) and the second planet row (4) are provided with input shaft (1), it is characterised in that described also including output shaft (2)
Third planet row (5), fourth planet row (6) and fifth line star row (7) are provided with output shaft (2), the third planet arranges (5)
On be provided with the 3rd gear ring (54), the third line star-wheel (52), the 3rd sun gear (51) and the third line carrier (53), the fourth line
The 4th gear ring (64), fourth line star-wheel (62), the 4th sun gear (61) and fourth line carrier (63), institute are provided with star row (6)
State and be provided with the 5th gear ring (74), fifth line star-wheel (72), the 5th sun gear (71) and fifth line carrier on fifth line star row (7)
(73), the fourth line carrier (63) is fixedly connected with the 3rd gear ring (54), the fifth line carrier (73) and described
Four gear rings (64) are fixedly connected.
2. crawler dozer speed changer according to claim 1, it is characterised in that the first planet row (3) left side
The first brake (30) is provided with, the second planet row (4) outside is provided with second brake (40), first brake
(30) and second brake (40) is direction controlling brake, third planet row (5) outside is provided with the 3rd brake
(50), fourth planet row (6) outside is provided with the 4th brake (60), and fifth line star row (7) outside is provided with the
Five brakes (70), the 3rd brake (50), the 4th brake (60) and the 5th brake (70) are braked for shift control
Device；
By the way that any one connects in the engagement of any one and shift control brake in control direction control brake simultaneously
Close, realize the different gear of the crawler dozer speed changer.
3. crawler dozer speed changer according to claim 2, it is characterised in that first planet row (3) includes
First sun gear (31), the first planet carrier (33), the first planetary gear (32) and the first gear ring (34)；Second planet row (4)
Including the second sun gear (41), the second gear ring (44), the second planet carrier (43) and the second planetary gear (42).
4. crawler dozer speed changer according to claim 3, it is characterised in that be connected with the input shaft (1)
First sun gear (31), first sun gear (31) is meshed with first planetary gear (32), first planetary gear
(32) first planet carrier (33) is rotatably connected on, first planet carrier (33) is connected with first brake (30)
Connect；First planetary gear (32) is meshed with first gear ring (34), first gear ring (34) and second planet
Frame (43) is fixedly connected；
Second planet row (4) is arranged on the first planet row (3) right side, and second sun gear (41) is fixedly connected on
On the input shaft (1), second sun gear (41) is meshed with second planetary gear (42), second planetary gear
(42) second planet carrier (43) is rotatably connected on, second planetary gear (42) is mutually nibbled with second gear ring (44)
Close, second gear ring (44) is connected with the second brake (40)；
Third planet row (5) is arranged on the second planet row (4) right side, and the is fixedly connected with the output shaft (2)
Three sun gears (51), the 3rd sun gear (51) is meshed with the third line star-wheel (52), the third line star-wheel (52)
On be rotatably connected to the third line carrier (53), the third line carrier (53) is fixedly connected with second planet carrier (43), institute
State the third line star-wheel (52) to be meshed with the 3rd gear ring (54), the 3rd gear ring (54) and the 3rd brake (50)
It is connected；
Fourth planet row (6) is arranged on third planet row (5) right side, and the is fixedly connected with the output shaft (2)
Four sun gears (61), the 4th sun gear (61) is meshed with the fourth line star-wheel (62), the fourth line star-wheel (62)
On be rotatably connected to fourth line carrier (63), the fourth line star-wheel (62) is meshed with the 4th gear ring (64), described
Four gear rings (64) are connected with the 4th brake (60)；
Fifth line star row (7) is arranged on fourth planet row (6) right side, and the is fixedly connected with the output shaft (2)
Five sun gears (71), the 5th sun gear (71) is meshed with the fifth line star-wheel (72), the fifth line star-wheel (72)
On be rotatably connected to fifth line carrier (73), the fifth line star-wheel (72) is meshed with the 5th gear ring (74), described
Five gear rings (74) are connected with the 5th brake (70).
5. crawler dozer speed changer according to claim 4, it is characterised in that the second brake (40) and institute
State the 5th brake (70) to simultaneously engage with, respectively that second gear ring (44) and the 5th gear ring (74) is fixed, the shoe
Belt bull-dozer speed changer realizes forward gear；
Or,
The second brake (40) and the 4th brake (60) simultaneously engage with, respectively by second gear ring (44) and institute
State the 4th gear ring (64) fixed, the crawler dozer speed changer realizes two gears that advance；
Or,
The second brake (40) and the 3rd brake (50) simultaneously engage with, respectively by second gear ring (44) and institute
State the 3rd gear ring (54) fixed, the crawler dozer speed changer realizes that ahead three keeps off；
Or,
First brake (30) and the 5th brake (70) simultaneously engage with, respectively by first planet carrier (33) and
5th gear ring (74) is fixed, and the crawler dozer speed changer realizes that retreating one keeps off；
Or,
First brake (30) the 4th brake (60) simultaneously engages with, respectively by first planet carrier (33) and institute
State the 4th gear ring (64) fixed, the crawler dozer speed changer realizes that retreating two keeps off；
Or,
First brake (30) and the 3rd brake (50) simultaneously engage with, respectively by first planet carrier (33) and
3rd gear ring (54) is fixed, and the crawler dozer speed changer realizes that retreating three keeps off；
Or,
5th brake (70) engagement, remaining brake is releasing stationary state, the crawler dozer speed changer reality
Existing neutral.
6. the crawler dozer speed changer according to claim any one of 2-5, it is characterised in that first brake
(30), second brake (40), the 3rd brake (50), the 4th brake (60) and the 5th brake (70) are Wet-type multi-disc
Formula brake.
7. the crawler dozer speed changer according to claim any one of 1-5, it is characterised in that the engine (8)
It is Diesel engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370374.3U CN206246613U (en) | 2016-12-14 | 2016-12-14 | A kind of crawler dozer speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370374.3U CN206246613U (en) | 2016-12-14 | 2016-12-14 | A kind of crawler dozer speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206246613U true CN206246613U (en) | 2017-06-13 |
Family
ID=59007461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621370374.3U Active CN206246613U (en) | 2016-12-14 | 2016-12-14 | A kind of crawler dozer speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206246613U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524768A (en) * | 2017-09-29 | 2017-12-29 | 浙江大学 | A kind of bull-dozer gearbox |
| CN108725583A (en) * | 2018-05-29 | 2018-11-02 | 山推工程机械股份有限公司 | A kind of speed change steering device, bull-dozer and engineering machinery |
| CN109812550A (en) * | 2019-02-28 | 2019-05-28 | 东华大学 | A kind of eight gear gearboxes of bull-dozer |
| CN112984059A (en) * | 2021-04-27 | 2021-06-18 | 北京航空航天大学 | Longitudinal rear-drive planetary gear automatic gearbox |
-
2016
- 2016-12-14 CN CN201621370374.3U patent/CN206246613U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524768A (en) * | 2017-09-29 | 2017-12-29 | 浙江大学 | A kind of bull-dozer gearbox |
| CN107524768B (en) * | 2017-09-29 | 2019-12-10 | 浙江大学 | gearbox for bulldozer |
| CN108725583A (en) * | 2018-05-29 | 2018-11-02 | 山推工程机械股份有限公司 | A kind of speed change steering device, bull-dozer and engineering machinery |
| CN108725583B (en) * | 2018-05-29 | 2021-04-02 | 山推工程机械股份有限公司 | Variable speed steering device, bulldozer and engineering machinery |
| CN109812550A (en) * | 2019-02-28 | 2019-05-28 | 东华大学 | A kind of eight gear gearboxes of bull-dozer |
| CN109812550B (en) * | 2019-02-28 | 2022-03-04 | 东华大学 | Eight-gear gearbox for bulldozer |
| CN112984059A (en) * | 2021-04-27 | 2021-06-18 | 北京航空航天大学 | Longitudinal rear-drive planetary gear automatic gearbox |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206246613U (en) | A kind of crawler dozer speed changer | |
| CN105835683B (en) | Electrohydraulic mixed power drive system | |
| CN100434757C (en) | Transmission, in particular an automated power-branched multi-speed gearing | |
| CN103557322B (en) | A kind of double-clutch automatic gearbox | |
| CN104728368B (en) | One kind six keeps off planetary automatic transmission | |
| CN106838154B (en) | A kind of manual transmission | |
| CN101487519B (en) | Full-gear speed self-adapting continuously variable transmission | |
| CN106523628B (en) | A kind of eight-gear planetary automatic speed changer | |
| CN207178599U (en) | A kind of pure electric vehicle two of power failure-free keeps off gearbox | |
| CN103527732A (en) | Seven-gear planet automatic gearbox | |
| US2727602A (en) | Reduction gear for gas turbine driven vehicle | |
| CN107869563A (en) | A kind of multistage multi-mode mechanical and hydraulic continuously variable transmission | |
| CN205997708U (en) | A kind of electric drive axle system based on single planetary row two shift transmission | |
| CN105128648B (en) | A kind of fixed shaft type hybrid gearbox of integrated driving motor | |
| CN106523627A (en) | Seven-gear planetary automatic transmission | |
| CN105299157B (en) | A kind of 9-speed transmission | |
| CN106641135B (en) | A kind of 12 speed automatic transmissions | |
| CN106763568B (en) | One kind six keeps off planetary automatic transmission | |
| CN201062191Y (en) | Hydraulic control type explosion-proof machinery variable-speed lifting winch | |
| CN101922534B (en) | Electromagnetic planetary gear continuously variable transmission | |
| CN106895119A (en) | A kind of equipment for plant protection gear arrangement | |
| CN103032528A (en) | Double-intermediate-shaft DCT structure and calculation method of gear transmission ratio thereof | |
| CN105818669B (en) | A kind of hybrid drive | |
| CN204547764U (en) | The power commutation Tractor Power Train of master clutch between major-minor variable speed device | |
| CN206206520U (en) | A kind of eight speed double-clutch speed change gears |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |