CN207569153U - A kind of 12+12 gear gearboxes - Google Patents
A kind of 12+12 gear gearboxes Download PDFInfo
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- CN207569153U CN207569153U CN201721552316.7U CN201721552316U CN207569153U CN 207569153 U CN207569153 U CN 207569153U CN 201721552316 U CN201721552316 U CN 201721552316U CN 207569153 U CN207569153 U CN 207569153U
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Abstract
The utility model provides a kind of 12+12 gear gearboxes, and gearbox includes babinet, and clutch unit, power shuttle gear-shifting unit, main variable-speed unit and secondary variable-speed unit are provided in the babinet；The clutch unit, power shuttle gear-shifting unit, main variable-speed unit and secondary variable-speed unit are sequentially connected successively；The clutch unit includes torsional damper, for being connect with engine；The power shuttle gear-shifting unit includes wet clutch, for realizing being switched fast for forward gear and reverse gear by oil pressure cntrol；The main variable-speed unit includes synchronizer, is used to implement the conversion of four gears.The utility model can effectively buffer impact of the engine start to transmission device below, can reduce noise in engine starting process, reduce abrasion between gear；Reversing maneuver can be completed under conditions of power is not cut off, improve the operating efficiency of tractor, reduce the fatigue strength of driver.
Description
Technical field
The utility model is related to gearbox technical field, more particularly, to a kind of 12+12 gear gearboxes.
Background technology
At present, China's tractor is widely used balladeur train and engaging sleeve both gearshift modes, and small part is using synchronizing
Device gearshift mode.The farm machinery of tractor class when farmland operation is shifted gears, generally will first depress clutch, make gearbox gear
Wheel idle running unclamps again clutch after switching gear, and vehicle is run according to the speed after gearshift.
Disadvantage is that：When non-powered tractor class farm machinery climbing or farming encounter larger resistance or
When commutation of turning round needs gearshift, particularly during paddy-field-working, need frequently to commutate, need during commutation to first pass through separation from
Clutch cuts off engine power, then operates shift handle and change the direction being driven, and realizes and advances or fall back, and manipulates cumbersome, reduction
Operating efficiency, time-consuming, excessive fuel consumption.
Utility model content
The purpose of this utility model is to provide a kind of 12+12 gear gearboxes, to solve in the prior art change
To when need first pass through separation clutch cut-out engine power, then operate shift handle change transmission direction, realize advance
Or fall back, it manipulates cumbersome, reduces operating efficiency, it is time-consuming, the technical issues of excessive fuel consumption.
In order to solve the above technical problems, a kind of 12+12 gear gearboxes provided by the utility model, including：Babinet；
Clutch unit, power shuttle gear-shifting unit, main variable-speed unit and secondary variable-speed unit are provided in the babinet；
The clutch unit, power shuttle gear-shifting unit, main variable-speed unit and secondary variable-speed unit are sequentially connected successively；
The clutch unit includes torsional damper, for being connect with engine；
The power shuttle gear-shifting unit includes wet clutch, for realizing forward gear and reverse gear by oil pressure cntrol
It is switched fast；
The main variable-speed unit includes synchronizer, is used to implement the conversion of four gears；
The pair variable-speed unit is used to implement the conversion of high, medium and low three gears.
The main clutch part of the utility model is torsional damper, can effectively buffer engine start to being driven dress below
The impact put can reduce noise in engine starting process, reduce abrasion between gear；
Power shuttle gear-shifting unit realizes being switched fast for forward gear and reverse gear, Ke Yi by wet clutch by oil pressure
It does not cut off and completes reversing maneuver under conditions of power, improve the operating efficiency of tractor, reduce the fatigue strength of driver.
Further, the power commutation input shaft, idler shaft, power commutation of power connector successively are provided in the babinet
Output shaft, main transmission input shaft, main transformer speed output shaft, secondary transmission input shaft and secondary speed change take-off (propeller) shaft；
The power shuttle gear-shifting unit includes：Power commutation input shaft, idler shaft, power commutation output shaft and main transformer speed
Input shaft；
The main variable-speed unit includes main transmission input shaft, main transformer speed output shaft and secondary transmission input shaft；
The main variable-speed unit is sequentially connected by the main transmission input shaft and the power shuttle gear-shifting unit；
The pair variable-speed unit includes：Main transformer speed output shaft, secondary transmission input shaft and secondary speed change take-off (propeller) shaft；
The pair variable-speed unit is sequentially connected by main transformer speed output shaft S4 and the main variable-speed unit.
Further, in the clutch unit, described torsional damper one end is connected with flywheel shell of engine, the other end
It commutates with power and inputs axis connection.
Specifically, the other end of the torsional damper passes through spline and power commutation input axis connection.
Further, the power shuttle gear-shifting unit further includes：Reverse driving gear, forward gear driving gear, reverse gear
Idle pulley, drive shift driven gear, often engages driving gear and often engages driven gear reverse gear driven gear；
The reverse driving gear and the forward gear driving gear are commutated input shaft by spline package in the power
On；
The idler shaft is mounted in the babinet, and the reverse idler gear is rotatably arranged on the idler shaft
On；
The reverse gear driven gear and the drive shift driven gear are rotatably sleeved on described dynamic by bearing
On power commutation output shaft；
The wet clutch is fixed on power commutation output shaft；
In the axial direction of power commutation output shaft, the reverse gear driven gear and drive shift driven gear difference
It is arranged on the both sides of the wet clutch；And the reverse gear driven gear and the drive shift driven gear pass through spline respectively
It is connect with the both ends of the wet clutch；
The normal engagement driving gear is commutated in the power on output shaft by spline package, the normal engagement driven tooth
Wheel is fixed on the main transmission input shaft；The normal engagement driving gear and the normal engagement driven gear keep engaged transmission
Connection status；
The reverse driving gear is sequentially connected by the reverse idler gear and the reverse gear driven gear；
The forward gear driving gear is connected by meshing transmission with the drive shift driven gear.
Further, the reverse idler gear is rotatably arranged on by bearing on the idler shaft；
The reverse gear driven gear and the drive shift driven gear are rotatably sleeved on described dynamic by bearing
On power commutation output shaft.
Preferably, the bearing is rolling bearing.
Further, the main variable-speed unit includes：One grade of driving gear, two grades of driving gears, third speed drive gear, four
Shelves driving gear, first speed driven gear, two grades of driven gears, third gear driven gear, fourth gear driven gear, one or two grades of synchronizers and
Three or four synchronizers；
The tooth hub of one grade of driving gear, two grades of driving gears and three or four synchronizer is by spline package in institute
It states on main transmission input shaft；
The third speed drive gear and the fourth gear driving gear are rotatably arranged on described by bearing respectively
On main transmission input shaft, and it is connect respectively with the combination gear ring of three or the four synchronizer both sides by spline；
Tooth hub, third gear driven gear and the fourth gear driven gear of one or two grades of synchronizers are by spline package in the master
On speed change output shaft；
The first speed driven gear and two grades of driven gears are rotatably sleeved on the main transformer by bearing
On fast output shaft, and it is connect respectively with the combination gear ring of one or two grades of synchronizer both sides by spline；
One grade of driving gear and first speed driven gear, two grades of driving gears and two grades of driven gears, third gear driving tooth
It is connected by meshing transmission respectively between wheel and third gear driven gear and fourth gear driving gear and fourth gear driven gear.
Further, in the axial direction, one grade of driving gear, two grades of driving gears, third speed drive gear, three or four synchronize
Device and fourth gear driving gear are sleeved on successively on the main transmission input shaft；
In the axial direction, first speed driven gear, one or two grades of synchronizers, two grades of driven gears, third gear driven gear and fourth gear from
Moving gear is sleeved on successively on the main transformer speed output shaft.
Further, the secondary variable-speed unit includes：Secondary speed change often engages driving gear, middle-grade engaging sleeve, high and low shift and nibbles
Trap, low-grade driven gear, middle-grade driven gear, secondary speed change often engage driven gear, low-grade driving gear and middle-grade driving tooth
Wheel；
The pair speed change often engages driving gear and is fixed on the main transformer speed output shaft, and is often engaged with the secondary speed change
Driven gear is connected by meshing transmission；
The pair speed change often engages driven gear and is fixed on the secondary transmission input shaft with low-grade driving gear；
The middle-grade engaging sleeve is by the way that on transmission input shaft secondary described in spline package, the middle-grade driving gear passes through bearing
It is rotatably sleeved on the secondary transmission input shaft；
In the axial direction, the middle-grade engagement is set between the low-grade driving gear and the middle-grade driving gear,
And it is selectively connected by meshing transmission with the combination gear ring on the low-grade driving gear or the middle-grade driving gear side；
The high and low shift engaging sleeve and the middle-grade driven gear are by spline package on the secondary speed change output shaft；Institute
Low-grade driven gear is stated to be rotatably mounted around on the secondary speed change output shaft by bearing；
The pair speed change output shaft and the concentric setting of main transformer speed output shaft, in the axial direction, the high and low shift engagement
It is set on the secondary speed change often to engage between driving gear and the low-grade driven gear, the high and low shift engaging sleeve may be selected
The combination gear ring that ground and the secondary speed change are often engaged on driving gear or the low-grade driven gear side is connected by meshing transmission,
Alternatively, the high and low shift engaging sleeve and the secondary speed change often engage the combination on driving gear and the low-grade driven gear side
Gear ring is disengaged from；
The middle-grade driving gear is connected by meshing transmission with the middle-grade driven gear；
The low grade driving gear is connected by meshing transmission with low-grade driven gear.
Using above-mentioned technical proposal, the utility model has the advantages that：
The utility model is simple in structure, easy to use, by setting main clutch part that can effectively delay for torsional damper
Impact of the engine start to transmission device below is rushed, between noise in engine starting process can be reduced, reducing gear
Abrasion；Power shuttle gear-shifting unit realizes being switched fast for forward gear and reverse gear, Ke Yi by wet clutch by oil pressure
Lower realize steadily is commutated under conditions of not cutting off power, improves the operating efficiency of tractor, the fatigue for reducing driver is strong
Degree, meets a variety of special operation requirements.
Description of the drawings
It below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the schematic diagram of gearbox that the utility model embodiment provides.
Reference numeral：
1- torsional dampers；2- reverse driving gears；3- reverse gear driven gears；4- forward gear driving gears；5- drive shifts
Driven gear；6- wet clutches；7- often engages driven gear；8- often engages driving gear；Mono- grade of driving gear of 9-；10- mono-
Shelves driven gear；Bis- grades of driving gears of 11-；Bis- grades of driven gears of 12-；13- third speed drive gears；14- third gear driven gears；
15- fourth gear driving gears；16- fourth gear driven gears；17- pair speed changes often engage driven gear；18- pair speed changes often engage driving tooth
Wheel；19- low grade driving gears；20- low grade driven gears；21- middle-grade driving gears；22- middle-grade driven gears；23- reverse gears are lazy
Wheel；Tri- or four synchronizers 34 of 34-；35- middle-grade engaging sleeves；36- high and low shift engaging sleeves；Mono- or two grades of synchronizers of 56-；101- clutch lists
Member；102- power shuttle gear-shifting units；The main variable-speed units of 103-；104- pair variable-speed units；S1- power commutation input shaft；S7- is lazy
Wheel shaft；S2- power commutation output shaft；The main transmission input shafts of S3-；S4- main transformer speed output shafts；S5- pair transmission input shafts；S6- pairs
Speed change take-off (propeller) shaft.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have spy with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Fixed orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " third " are only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
Explanation is further explained to the utility model with reference to specific embodiment.
As shown in Figure 1, a kind of 12+12 gear gearboxes provided in this embodiment, including：Babinet；
Clutch unit 101, power shuttle gear-shifting unit 102, main variable-speed unit 103 and secondary speed change list are provided in babinet
Member 104；
Clutch unit 101, power shuttle gear-shifting unit 102, main variable-speed unit 103 and secondary variable-speed unit 104 pass successively
Dynamic connection；
Clutch unit 101 includes torsional damper, for being connect with engine；
Power shuttle gear-shifting unit 102 includes wet clutch 6, for realizing forward gear and reverse gear by oil pressure cntrol
It is switched fast；
Main variable-speed unit 103 includes synchronizer, is used to implement the conversion of four gears；
Secondary variable-speed unit 104 is used to implement the conversion of high, medium and low three gears.
The main clutch part of the utility model is torsional damper, can effectively buffer engine start to being driven dress below
The impact put can reduce noise in engine starting process, reduce abrasion between gear；
Power shuttle gear-shifting unit 102 realizes being switched fast for forward gear and reverse gear by wet clutch by oil pressure, can
To complete reversing maneuver under conditions of power is not cut off, the operating efficiency of tractor is improved, reduces the fatigue of driver
Intensity.
Be provided in babinet the power commutation input shaft S1 of power connector successively, idler shaft S7, power commutation output shaft S2,
Main transmission input shaft S3, main transformer speed output shaft S4, pair transmission input shaft S5 and secondary speed change take-off (propeller) shaft S6；
Power shuttle gear-shifting unit 102 includes：Power commutation input shaft S1, idler shaft S7, power commutation output shaft S2 and
Main transmission input shaft S3；
Main variable-speed unit 103 includes main transmission input shaft S3, main transformer speed output shaft S4 and secondary transmission input shaft S5；
Main variable-speed unit 103 is sequentially connected by main transmission input shaft S3 and power shuttle gear-shifting unit 102；
Secondary variable-speed unit 104 includes：Main transformer speed output shaft S4, pair transmission input shaft S5 and secondary speed change take-off (propeller) shaft S6；
Secondary variable-speed unit 104 is sequentially connected by main transformer speed output shaft S4 and main variable-speed unit 103.
In clutch unit 101,1 one end of torsional damper is connected with flywheel shell of engine, and the other end commutates defeated with power
Enter axis S1 connections.
Specifically, the other end of torsional damper 1 is connect by spline with power commutation input shaft S1.
Power shuttle gear-shifting unit 102 further includes：Reverse driving gear 2, reverse idler gear 23, falls at forward gear driving gear 4
Shelves driven gear 3, often drive shift driven gear 5, engagement driving gear 8 and normal engagement driven gear 7；
Reverse driving gear 2 and forward gear driving gear 4 are commutated in power on input shaft S1 by spline package；
Idler shaft S7 is mounted in babinet, and reverse idler gear 23 is rotatably arranged on idler shaft S7；
Reverse gear driven gear 3 and drive shift driven gear 5 are rotatably sleeved on power commutation output by bearing
On axis S2；
Wet clutch 6 is fixed on power commutation output shaft S2；
In the axial direction of power commutation output shaft S2, reverse gear driven gear 3 and drive shift driven gear 5 are separately positioned on wet
The both sides of formula clutch 6；And reverse gear driven gear 3 and drive shift driven gear 5 pass through spline and the two of wet clutch 6 respectively
End connection；
Often engagement driving gear 8 is commutated in power on output shaft S2 by spline package, is often engaged driven gear 7 and is fixed in
On main transmission input shaft S3；Normal engagement driving gear 8 and normal engagement driven gear 7 keep the state that is connected by meshing transmission；
Reverse driving gear 2 is sequentially connected by reverse idler gear 23 and reverse gear driven gear 3；
Forward gear driving gear 4 is connected by meshing transmission with drive shift driven gear 5.
Reverse idler gear 23 is rotatably arranged on by bearing on idler shaft S7；
Reverse gear driven gear 3 and drive shift driven gear 5 are rotatably sleeved on power commutation output by bearing
On axis S2；
Preferably, bearing is rolling bearing.
Main variable-speed unit 103 includes：One grade of driving gear 9, two grades of driving gears 11, third speed drive gear 13, fourth gear masters
Moving gear 15,10, two grades of driven gears 12 of first speed driven gear, third gear driven gear 14,16,1 grades of fourth gear driven gear are same
Walk 56 and 34 synchronizer 34 of device；
The tooth hub of one grade of driving gear, 9, two grades of 11 and 34 synchronizers 34 of driving gear is by spline package in main transformer
On fast input shaft S3；
It is defeated that third speed drive gear 13 and fourth gear driving gear 15 are rotatably arranged on main transformer speed by bearing respectively
Enter on axis S3, and connect respectively with the combination gear ring of three or four synchronizer, 34 both sides by spline；
Tooth hub, third gear driven gear 14 and the fourth gear driven gear 16 of one or two grades of synchronizers 56 are by spline package in main transformer
On fast output shaft S4；
First speed driven gear 10 and two grades of driven gears 12 are rotatably sleeved on main transformer speed output shaft by bearing
On S4, and it is connect respectively with the combination gear ring of one or two grades of 56 both sides of synchronizer by spline；
10, two grades of driving gears 11 of one grade of driving gear 9 and first speed driven gear and two grades of driven gears 12, third gear are actively
Engaged transmission connects respectively between gear 13 and third gear driven gear 14 and fourth gear driving gear 15 and fourth gear driven gear 16
It connects.
In the axial direction, one grade of driving gear, 9, two grades of driving gears 11, third speed drive gear 13, three or four synchronizers 34 and
Fourth gear driving gear 15 is sleeved on successively on main transmission input shaft S3；
In the axial direction, 10,1 grades of first speed driven gear, 56, two grades of synchronizer driven gear 12, third gear driven gear 14
It is sleeved on successively on main transformer speed output shaft S4 with fourth gear driven gear 16.
Secondary variable-speed unit 104 includes：Secondary speed change often engage driving gear 18, middle-grade engaging sleeve 35, high and low shift engaging sleeve 36,
Low-grade driven gear 20, middle-grade driven gear 22, secondary speed change often engage driven gear 17, low-grade driving gear 19 and middle-grade actively
Gear 21；
Secondary speed change often engages driving gear 18 and is fixed on main transformer speed output shaft S4, and often engages driven gear with secondary speed change
17 are connected by meshing transmission；
Secondary speed change often engages driven gear 17 and is fixed on secondary transmission input shaft S5 with low-grade driving gear 19；
Middle-grade engaging sleeve 35 is by the way that on spline package pair transmission input shaft S5, middle-grade driving gear 21 can be opposite by bearing
It is rotationally sleeved on secondary transmission input shaft S5；
In the axial direction, middle-grade engaging sleeve 35 is arranged between low-grade driving gear 19 and middle-grade driving gear 21, and optional
Select and 21 side of low-grade driving gear 19 or middle-grade driving gear on combination gear ring be connected by meshing transmission；
High and low shift engaging sleeve 36 and middle-grade driven gear 22 are by spline package on secondary speed change output shaft S6；It is low-grade driven
Gear 20 is rotatably mounted around by bearing on secondary speed change output shaft S6；
Secondary speed change output shaft S6 and the concentric settings of main transformer speed output shaft S4, in the axial direction, high and low shift engaging sleeve 36 is set
It is often engaged between driving gear 18 and low-grade driven gear 20 in secondary speed change, high and low shift engaging sleeve 36 is selectively normal with secondary speed change
Combination gear ring on engagement driving gear 18 or low-grade 20 side of driven gear is connected by meshing transmission, alternatively, high and low shift engages
The combination gear ring that set 36 and secondary speed change are often engaged on driving gear 18 and low-grade 20 side of driven gear is disengaged from；
Middle-grade driving gear 21 is connected by meshing transmission with middle-grade driven gear 22；
Low-grade driving gear 19 is connected by meshing transmission with low-grade driven gear 20.
Using above-mentioned technical proposal, the utility model has the advantages that：
The utility model is simple in structure, easy to use, by setting main clutch part that can effectively delay for torsional damper
Impact of the engine start to transmission device below is rushed, between noise in engine starting process can be reduced, reducing gear
Abrasion；Power shuttle gear-shifting unit realizes being switched fast for forward gear and reverse gear, Ke Yi by wet clutch by oil pressure
Lower realize steadily is commutated under conditions of not cutting off power, improves the operating efficiency of tractor, the fatigue for reducing driver is strong
Degree, meets a variety of special operation requirements.
Wherein, power shuttle gear-shifting unit is as follows for gear drive path when commutating：
Forward gear：By signal controller, wet clutch 6 is made to be combined with drive shift driven gear 5, drive line at this time
Lu Wei：Torsional damper (1) → power commutation input shaft S1 → 6 → power of forward gear 4 → wet clutch of driving gear commutation
Output shaft S2 → often engagement driving gear 8 → often engages driven gear 7 → main variable-speed unit；
Reverse gear：By signal controller, wet clutch 6 is made to be combined with reverse gear driven gear 3, drive line at this time
For：Torsional damper (1) → power commutation input shaft S1 → lazy 23 → reverse gear of human relations driven gear 3 of 2 → reverse gear of reverse driving gear
It is single often to engage 7 → main transformer of driven gear speed by 6 → power of → wet clutch commutation output shaft S2 → often engagement driving gear 8 →
Member.
After power shuttle gear-shifting unit enters main variable-speed unit, the gear change in main variable-speed unit is：
One grade：Gearshift is manipulated, one or two grades of synchronizers 56 is made to be combined with first speed driven gear 10, drive path at this time
It is two.Drive line 1 is：Power shuttle gear-shifting unit → 9 → mono- grades of main transmission input shaft S3 → mono- grade driving gear is driven
Gear 10 → mono- or two grade synchronizer 56 → main transformer speed output shaft S4 → pair variable-speed unit.Drive line 2 is：Power shuttle gear-shifting list
9 → first speed driven gear of member → main transmission input shaft S3 → mono- grade driving gear, 10 → 1 grades of 56 → main transformer of synchronizer speed outputs
Axis S4 → pair speed change often engages driving gear 18 → pair speed change and often engages driven gear 17 → pair variable-speed unit.
Two grades：Gearshift is manipulated, one or two grades of synchronizers 56 is made to be combined with two grades of driven gears 12, drive path at this time
It is two.Drive line 1 is：Power shuttle gear-shifting unit → 11 → bis- grades of main transmission input shaft S3 → bis- grade driving gear is driven
Gear 12 → mono- or two grade synchronizer 56 → main transformer speed output shaft S4 → pair variable-speed unit.Drive line 2 is：Power shuttle gear-shifting list
Member → main 11 → bis- grades of driven gear 12 → mono- or two grade synchronizer 56 → main transformer speed of transmission input shaft S3 → bis- grade driving gear are defeated
Shaft S4 → pair speed change often engages driving gear 18 → pair speed change and often engages driven gear 17 → pair variable-speed unit.
Third gear：Gearshift is manipulated, three fourth gear synchronizers 34 is made to be combined with third speed drive gear 13, drive path at this time
It is two.Drive path 1 is：34 → the third gear of fourth gear synchronizer of power shuttle gear-shifting unit → main transmission input shaft S3 → tri- is actively
Gear 13 → third gear driven gear 14 → main transformer speed output shaft S4 → pair variable-speed unit.Drive path 2 is：Power shuttle gear-shifting list
Member → main transmission input shaft S3 → tri- fourth gear synchronizer 34 → third speed drive gear, 13 → third gear driven gear 14 → main transformer speed are defeated
Shaft S4 → pair speed change often engages driving gear 18 → pair speed change and often engages driven gear 17 → pair variable-speed unit.
Fourth gear：Gearshift is manipulated, three fourth gear synchronizers 34 is made to be combined with fourth gear driving gear 15, drive path at this time
It is two.Drive path 1 is：34 → the fourth gear of fourth gear synchronizer of power shuttle gear-shifting unit → main transmission input shaft S3 → tri- is actively
Gear 15 → fourth gear driven gear 16 → main transformer speed output shaft S4 → pair variable-speed unit.Drive path 2 is：Power shuttle gear-shifting list
Member → main transmission input shaft S3 → tri- fourth gear synchronizer 34 → fourth gear driving gear 15 → fourth gear driven gear 16 → main transformer speed are defeated
Shaft S4 → pair speed change often engages driving gear 18 → pair speed change and often engages driven gear 17 → pair variable-speed unit.
After main variable-speed unit enters secondary variable-speed unit, the transforming gear in secondary variable-speed unit is：
It is low-grade：Gearshift is manipulated, high and low shift engaging sleeve 36 is made to be combined with low-grade driven gear 20, drive line at this time
For：Main variable-speed unit → pair transmission input shaft S5 → low grade driving gear 19 → low grade 20 → high and low shift of driven gear engaging sleeve 36
→ pair speed change output shaft S6 → output.
Middle-grade：Gearshift is manipulated, middle-grade engaging sleeve 35 is made to be combined with middle-grade driving gear 21, drive path at this time
For：Main variable-speed unit → pair transmission input shaft S5 → middle-grade 35 → middle-grade of engaging sleeve driving gear 21 → pair speed change output shaft S6 →
Output.
It is high-grade：Gearshift is manipulated, high and low shift engaging sleeve 36 is made often to engage driving gear 18 with secondary speed change and is combined, at this time
Drive path be：The secondary speed change output shaft S6 → output of main variable-speed unit → high and low shift engaging sleeve 36.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (9)
1. a kind of 12+12 gear gearboxes, which is characterized in that including：Babinet；
Clutch unit, power shuttle gear-shifting unit, main variable-speed unit and secondary variable-speed unit are provided in the babinet；
The clutch unit, power shuttle gear-shifting unit, main variable-speed unit and secondary variable-speed unit are sequentially connected successively；
The clutch unit includes torsional damper, for being connect with engine；
The power shuttle gear-shifting unit includes wet clutch, for realizing the quick of forward gear and reverse gear by oil pressure cntrol
Switching；
The main variable-speed unit includes synchronizer, is used to implement the conversion of four gears；
The pair variable-speed unit is used to implement the conversion of high, medium and low three gears.
2. 12+12 gear gearboxes according to claim 1, which is characterized in that power successively is provided in the babinet
Power commutation input shaft (S1), idler shaft (S7), power commutation output shaft (S2), main transmission input shaft (S3), the main transformer of connection
Fast output shaft (S4), secondary transmission input shaft (S5) and secondary speed change take-off (propeller) shaft (S6)；
The power shuttle gear-shifting unit includes：Power commutation input shaft (S1), idler shaft (S7), power commutation output shaft (S2)
With main transmission input shaft (S3)；
The main variable-speed unit includes main transmission input shaft (S3), main transformer speed output shaft (S4) and secondary transmission input shaft (S5)；
The main variable-speed unit is sequentially connected by the main transmission input shaft (S3) and the power shuttle gear-shifting unit；
The pair variable-speed unit includes：Main transformer speed output shaft (S4), secondary transmission input shaft (S5) and secondary speed change take-off (propeller) shaft
(S6)；
The pair variable-speed unit is sequentially connected by main transformer speed output shaft (S4) and the main variable-speed unit.
3. 12+12 gear gearboxes according to claim 2, which is characterized in that in the clutch unit, the torsion
Turn buffer (1) one end with flywheel shell of engine to be connected, the other end is connect with power commutation input shaft (S1).
4. 12+12 gear gearboxes according to claim 2, which is characterized in that the power shuttle gear-shifting unit also wraps
It includes：Reverse driving gear (2), forward gear driving gear (4), reverse idler gear (23), reverse gear driven gear (3), drive shift are driven
Gear (5), often engagement driving gear (8) and often engagement driven gear (7)；
The reverse driving gear (2) and the forward gear driving gear (4) are commutated by spline package in the power to be inputted
On axis (S1)；
For the idler shaft (S7) in the babinet, the reverse idler gear (23) is rotatably arranged on the idle pulley
On axis (S7)；
The reverse gear driven gear (3) and the drive shift driven gear (5) are rotatably sleeved on the power commutation
On output shaft (S2)；
The wet clutch (6) is fixed on power commutation output shaft (S2)；
In the axial direction of power commutation output shaft (S2), the reverse gear driven gear (3) and the drive shift driven gear
(5) both sides of the wet clutch (6) are separately positioned on；And the reverse gear driven gear (3) and the drive shift driven tooth
Wheel (5) is connect respectively by spline with the both ends of the wet clutch (6)；
The normal engagement driving gear (8) is commutated in the power on output shaft (S2) by spline package, the normal engagement from
Moving gear (7) is fixed on the main transmission input shaft (S3)；The normal engagement driving gear (8) and the normal engagement driven tooth
Wheel (7) keeps the state that is connected by meshing transmission；
The reverse driving gear (2) is sequentially connected by the reverse idler gear (23) and the reverse gear driven gear (3)；
The forward gear driving gear (4) is connected by meshing transmission with the drive shift driven gear (5).
5. 12+12 gear gearboxes according to claim 4, which is characterized in that the reverse idler gear (23) passes through bearing
It is rotatably arranged on the idler shaft (S7)；
The reverse gear driven gear (3) and the drive shift driven gear (5) are rotatably sleeved on described by bearing
On power commutation output shaft (S2).
6. 12+12 gear gearboxes according to claim 2, which is characterized in that the main variable-speed unit includes：One grade of master
Moving gear (9), two grades of driving gears (11), third speed drive gear (13), fourth gear driving gear (15), first speed driven gear
(10), two grades of driven gears (12), third gear driven gear (14), fourth gear driven gear (16), one or two grades of synchronizers (56) and three
Four synchronizers (34)；
The tooth hub of one grade of driving gear (9), two grades of driving gears (11) and three or four synchronizer (34) passes through spline
It is sleeved on the main transmission input shaft (S3)；
The third speed drive gear (13) and the fourth gear driving gear (15) are rotatably arranged on respectively by bearing
On the main transmission input shaft (S3), and it is connect respectively with the combination gear ring of three or four synchronizer (34) both sides by spline；
Tooth hub, third gear driven gear (14) and the fourth gear driven gear (16) of one or two grades of synchronizers (56) pass through spline package
On the main transformer speed output shaft (S4)；
The first speed driven gear (10) and two grades of driven gears (12) are rotatably sleeved on described by bearing
On main transformer speed output shaft (S4), and it is connect respectively with the combination gear ring of one or two grades of synchronizers (56) both sides by spline；
One grade of driving gear (9) and first speed driven gear (10), two grades of driving gears (11) and two grades of driven gears (12),
Between third speed drive gear (13) and third gear driven gear (14) and fourth gear driving gear (15) and fourth gear driven gear (16)
It is connected by meshing transmission respectively.
7. 12+12 gear gearboxes according to claim 6, which is characterized in that in the axial direction, one grade of driving gear
(9), two grades of driving gears (11), third speed drive gear (13), three or four synchronizers (34) and fourth gear driving gear (15) be successively
It is sleeved on the main transmission input shaft (S3)；
In the axial direction, first speed driven gear (10), one or two grades of synchronizers (56), two grades of driven gears (12), third gear driven gears
(14) it is sleeved on successively on the main transformer speed output shaft (S4) with fourth gear driven gear (16).
8. 12+12 gear gearboxes according to claim 2, which is characterized in that the pair variable-speed unit includes：Secondary speed change
Often engagement driving gear (18), middle-grade engaging sleeve (35), high and low shift engaging sleeve (36), low-grade driven gear (20), middle-grade are driven
Gear (22), secondary speed change often engage driven gear (17), low-grade driving gear (19) and middle-grade driving gear (21)；
The pair speed change often engages driving gear (18) and is fixed on the main transformer speed output shaft (S4), and normal with the secondary speed change
Engagement driven gear (17) is connected by meshing transmission；
The pair speed change often engages driven gear (17) and is fixed in the secondary transmission input shaft (S5) with low-grade driving gear (19)
On；
The middle-grade engaging sleeve (35) is by transmission input shaft (S5) secondary described in spline package, the middle-grade driving gear (21)
It is rotatably sleeved on by bearing on the secondary transmission input shaft (S5)；
In the axial direction, the middle-grade engaging sleeve (35) is arranged on the low-grade driving gear (19) and the middle-grade driving gear
(21) between, and selectively and the combination on described low-grade driving gear (19) or the middle-grade driving gear (21) side
Gear ring is connected by meshing transmission；
The high and low shift engaging sleeve (36) and the middle-grade driven gear (22) are by spline package in the secondary speed change output shaft
(S6) on；The low grade driven gear (20) is rotatably mounted around by bearing on the secondary speed change output shaft (S6)；
The pair speed change output shaft (S6) and the concentric setting of the main transformer speed output shaft (S4), in the axial direction, the high and low shift
Engaging sleeve (36) is arranged on the secondary speed change and often engages between driving gear (18) and the low-grade driven gear (20), the height
Low-grade engaging sleeve (36) selectively often engages driving gear (18) or the low-grade driven gear (20) with the secondary speed change
Combination gear ring on side is connected by meshing transmission, alternatively, the high and low shift engaging sleeve (36) often engages actively with the secondary speed change
Combination gear ring on gear (18) and described low-grade driven gear (20) side is disengaged from；
The middle-grade driving gear (21) is connected by meshing transmission with the middle-grade driven gear (22)；
The low grade driving gear (19) is connected by meshing transmission with low-grade driven gear (20).
9. 12+12 gear gearboxes according to claim 3, which is characterized in that the other end of the torsional damper (1)
It is connect by spline with power commutation input shaft (S1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721552316.7U CN207569153U (en) | 2017-11-20 | 2017-11-20 | A kind of 12+12 gear gearboxes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721552316.7U CN207569153U (en) | 2017-11-20 | 2017-11-20 | A kind of 12+12 gear gearboxes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676434A (en) * | 2017-11-20 | 2018-02-09 | 雷沃重工股份有限公司 | A kind of 12+12 gear gearboxes and its harvest machinery |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676434A (en) * | 2017-11-20 | 2018-02-09 | 雷沃重工股份有限公司 | A kind of 12+12 gear gearboxes and its harvest machinery |
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Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai Lovol Intelligent Agricultural Technology Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee before: Weichai leiwo Heavy Industry Co.,Ltd. |