CN207278817U - A kind of power shifting and power commutation gear box of tractor - Google Patents
A kind of power shifting and power commutation gear box of tractor Download PDFInfo
- Publication number
- CN207278817U CN207278817U CN201721091861.0U CN201721091861U CN207278817U CN 207278817 U CN207278817 U CN 207278817U CN 201721091861 U CN201721091861 U CN 201721091861U CN 207278817 U CN207278817 U CN 207278817U
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- gear
- power
- output shaft
- clutch
- shaft
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Abstract
The utility model announces a kind of power shifting and power commutation gear box of tractor, belong to agricultural wheeled tractor technical field, including power shifting case, main-gear box and auxiliary transmission, power reversing device, Hi Lo power shifted speeds are disposed with power shifting case, main-gear box is disposed with 4 gear synchronizer gearshifts, and auxiliary transmission is disposed with 4 gear synchronizer gearshifts, PTO output devices and front-rear axle transfer device.Power shifting case, main-gear box and auxiliary transmission are arranged in order, and power shifting case front end is connected by torsional vibration damper with engine flywheel, and auxiliary transmission bridge forward and backward with tractor and PTO outputs are connected.Engine power can be transferred to the forward and backward bridge of tractor and rear power output shaft by above gearbox designs.The gearbox can realize 32 forward gears and 16 retreating gears, and commutation and Hi Lo parts are shifted gears using automatically controlled multi-disc wet clutch, simple to operate, greatly reduce the labor intensity of driver.
Description
Technical field
Agricultural wheeled tractor is the utility model is related to, is specifically a kind of gear box of tractor.
Background technology
At present, the mainstream configuration of China's tractor transmission system or synchronizer mechanical changeover pattern, when gearshift, need to separate
Main clutch, cuts off power transmission；There is the high-end type power train of small part using power shifting, pass through automatically controlled wet type clutch
Device controls the switching of gear, and power does not interrupt during gearshift.The structure mature and reliable of mechanical changeover, cost is low, but machine hand operates
Labor intensity is big.Power shifting is complicated, of high cost, but operates easily, while shifting power does not interrupt during operation, efficiency
It is high.According to the actual use operating mode of China's tractor, with reference to the advantages of above two power train, power is added on mechanical gear box
Commutation and Hi-Lo power shifted speeds, improve operating efficiency under conditions of excessive cost is not increased, and it is strong to reduce the work of machine hand
Degree.
The content of the invention
In order to solve the above technical problems, the utility model provides a kind of power shifting and power commutation gear box of tractor,
Compact-sized, power shifting part-structure is ingenious, to realize power commutation and power Hi- at the same time with less shift clutch
Lo, drive path is clear, and engine power can be transferred to forward and backward bridge and rear power output shaft.
Including following technical solution：A kind of power shifting and power commutation gear box of tractor, including power shifting case, master
Gearbox and auxiliary transmission, power shifting case, main-gear box and the auxiliary transmission are arranged in order, and power shifting case front end passes through
Torsional vibration damper is connected with engine flywheel, and auxiliary transmission bridge forward and backward with tractor and PTO outputs are connected；The power shifting
Input shaft, output shaft, the idler shaft that reverses gear, power reversing device and Hi-Lo power shifted speeds are disposed with case；The power changes
Include may be rotatably mounted at the driving gear that reverses gear on input shaft, the driven tooth of reversing gear being fixedly mounted on output shaft to device
Wheel, may be rotatably mounted at the idle pulley that reverses gear to reverse gear on idler shaft；It is described reverse gear idle pulley respectively with reverse gear driving gear and reverse gear from
Moving gear often engages；Described reverse gear is connected with reverse clutch between driving gear and input shaft；The Hi-Lo power shiftings dress
Hi gears driving gear, Lo gear driving gears including being fixedly mounted on input shaft are put, and may be rotatably mounted on output shaft
Hi gear driven gear, Lo gear driven gear；Hi gear driving gears and Hi the gear driven gear often engages, Lo gear driving gears
Often engaged with Lo gear driven gears；Hi gear clutches are connected between the Hi gear driven gears and output shaft；Lo gear from
Lo gear clutches are connected between moving gear and output shaft；4 gear synchronizer gearshifts are disposed with main-gear box；Auxiliary transmission
Inside it is disposed with 4 gear synchronizer gearshifts, PTO output devices and forward and backward bridge transfer device.
It is further：Output shaft one end is provided with headstock output gear, input shaft one end in the power shifting case
It is connected with PTO shaft；The PTO shaft passes through main-gear box, auxiliary transmission；Main transformer speed output shaft is provided with the main-gear box；
It is rotatably mounted on PTO shaft in main-gear box to have the main transformer speed input gear being meshed with headstock output gear；In master
It is rotatably mounted on PTO shaft and main transformer speed output shaft in gearbox to have 4 pairs of constant mesh gear pairs, four wherein on PTO shaft
Gear is fixedly secured to one another with main transformer speed input gear；It is provided with the main transformer speed output shaft and 4 pairs of constant mesh gear pairs
Synchronizer I, the synchronizer II of cooperation, synchronizer I, synchronizer II can slide axially, be combined with two side gears, passing power,
Form 4 gears；Secondary transmission input shaft, secondary speed change output shaft I and secondary speed change output shaft II are provided with the auxiliary transmission；Institute
State secondary transmission input shaft one end to be connected with main transformer speed output shaft one end, secondary I one end of speed change output shaft connects tractor rear axle, and pair becomes
Fast II one end of output shaft connects farm tractor front axle；The pair transmission input shaft and secondary speed change output shaft I are provided with 4 pairs of normal engaging tooths
Wheel set, wherein 4 gears on secondary transmission input shaft may be rotatably mounted on secondary transmission input shaft, 4 on secondary speed change output shaft I
A gear is fixedly mounted on secondary speed change output shaft I；It is provided with the pair transmission input shaft and the secondary cooperation of 4 pairs of constant mesh gears
Synchronizer III, synchronizer IV, synchronizer III, synchronizer IV can slide axially, be combined with two side gears, passing power, shape
Into 4 gears；Rotatably mounted on the pair speed change output shaft II to have preceding bridge transfer gear, preceding bridge transfer gear and secondary speed change are defeated
Gear on shaft I is meshed；Clutch is connected between the preceding bridge transfer gear and secondary speed change output shaft II.
The reverse clutch, Hi gear clutches and Lo gears clutch are real using the multi-disc wet clutch of electrichydraulic control
Existing power commutation and Hi-Lo power shiftings.
In the reverse clutch, Hi gear clutches and Lo gear clutches, when wherein any one clutch is in combination
During state, other two clutches are in discrete state.
The reverse clutch, Hi gear clutches and Lo gear clutches double as realizing the starting work(that tractor moves forward and backward
Facilitate main-gear box and the main clutch of auxiliary transmission synchronizer gear shift operation when while discrete state can be placed in.
The utility model can reach following beneficial effect using above-mentioned technical proposal：A kind of power shifting and power commutation is dragged
Machine drawing gearbox, compact-sized using above-mentioned arrangement, power shifting part-structure is ingenious, with less gearshift clutch
Device come at the same time realizes power commutation and power Hi-Lo, drive path is clear, engine power can be transferred to forward and backward bridge and
Rear power output shaft.The combination of power shifting case, main-gear box and auxiliary transmission, forms 32 forward gears and 16 retreating gears,
Gear number is more, and speed is than reasonable, raising complete machine fuel economy.Power commutates and power Hi-Lo uses automatically controlled Wet-type multi-disc clutch
Device is shifted gears, can be by the push-botton operation that is arranged on gear shifting stop lever, and simple to operate, the work for greatly reducing machine hand is strong
Degree.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：T1, power shifting case；T2, main-gear box；T3, auxiliary transmission；S1, input shaft；S2, PTO shaft；S3, reverse gear
Idler shaft；S4, output shaft；K1, Lo keep off clutch；K2, Hi keep off clutch；K3, reverse clutch；K4, clutch；1st, reverse gear master
Moving gear；2nd, Hi keeps off driving gear；3rd, Lo keeps off driving gear；4th, main transformer speed input gear；5th, synchronizer III；6th, synchronizer IV；
7th, preceding bridge transfer gear；9th, synchronizer I；10th, synchronizer II；11st, headstock output gear；12nd, Lo keeps off driven gear；13、Hi
Keep off driven gear；14th, reverse gear idle pulley；15th, reverse gear driven gear；16th, torsional vibration damper.
Embodiment
It is a specific embodiment of the present apparatus below, is described further in conjunction with attached drawing.
As shown in Figure 1, a kind of power shifting and power commutation gear box of tractor, including power shifting case T1, main transformer speed
Case T2 and auxiliary transmission T3, power shifting case T1, main-gear box T2 and the auxiliary transmission T3 are arranged in order.
Input shaft S1, output shaft S4 are disposed with power shifting case T1, reverse gear idler shaft S3, power reversing device and Hi-
Lo power shifted speeds；Input shaft S1, output shaft S4, the idler shaft S3 that reverses gear are parallel to each other.Input shaft S1 front ends are subtracted by reversing
The device 16 that shakes is connected with engine flywheel；Input shaft S1 rear ends are connected with PTO shaft S2, and PTO shaft S2 passes through main-gear box T2, secondary speed change
Case T3.Output shaft S4 rear ends are provided with headstock output gear 11 in power shifting case T1.
Power reversing device includes may be rotatably mounted at the driving gear 1 that reverses gear on input shaft S1, is fixedly mounted on output
The driven gear 15 that reverses gear on axis S4, may be rotatably mounted at the idle pulley 14 that reverses gear to reverse gear on idler shaft S3；The idle pulley 14 that reverses gear is distinguished
With reversing gear driving gear 1 and the driven gear 15 that reverses gear often engages；Reverse gear be connected between driving gear 1 and input shaft S1 reverse gear from
When clutch K3, reverse clutch K3 are combined, the driving gear 1 that reverses gear is coupled integrally with input shaft S1.
Hi-Lo power shifted speeds include Hi gears driving gear 2, the Lo gear driving gears being fixedly mounted on input shaft S1
3, and may be rotatably mounted at Hi gears driven gear 13, Lo gear driven gears 12 on output shaft S4.Hi keeps off driving gear 2 and Hi
Gear driven gear 13 often engages, and Lo gear driving gears 3 and Lo gear driven gears 12 often engage.Hi keeps off driven gear 13 and output shaft
When Hi gear clutch K2, Hi gear clutch K2 combinations are connected between S4, Hi gear driven gears 13 are coupled to one with output shaft S4
Body；Lo, which is kept off between driven gear 12 and output shaft S4, is connected with Lo gear clutches K1, and when Lo keeps off clutch K1 combinations, Lo gears are driven
Gear 12 is coupled integrally with output shaft S4.
Reverse clutch K3, Hi gear clutch K2 and Lo gear clutch K1 use the multi-disc wet clutch of electrichydraulic control
Realize power commutation and Hi-Lo power shiftings.In reverse clutch K3, Hi gear clutch K2 and Lo gear clutch K1, when wherein
When any one clutch is in bonding state, other two clutches are in discrete state.Reverse clutch K3, Hi keep off clutch
Device K2 and Lo gear clutch K1 are led as convenient when realizing the starting function that tractor moves forward and backward while being placed in discrete state
The main clutch of gearbox T2 and auxiliary transmission T3 synchronizer gear shift operations.
4 gear synchronizer gearshifts are disposed with main-gear box T2, are specifically：It is defeated that main transformer speed is provided with main-gear box T2
Shaft, main transformer speed output shaft are parallel with PTO shaft S2.It is rotatably mounted on PTO shaft S2 in main-gear box T2 to have and headstock
The main transformer speed input gear 4 that output gear 11 is meshed；It can turn on PTO shaft S2 and main transformer speed output shaft in main-gear box T2
Dynamic to be provided with 4 pairs of constant mesh gear pairs, wherein four on PTO shaft S2 gear is fixedly secured to one another with main transformer speed input gear 4；
The synchronizer I 9 coordinated secondary with 4 pairs of constant mesh gears, synchronizer II 10 be installed on main transformer speed output shaft, it is synchronizer I 9, same
Step device II 10 can slide axially, be combined with two side gears, passing power, form 4 gears.
4 gear synchronizer gearshifts are disposed with auxiliary transmission T3, are specifically：It is defeated that secondary speed change is provided with auxiliary transmission T3
Enter axis, secondary speed change output shaft I and secondary speed change output shaft II；Secondary transmission input shaft, secondary speed change output shaft I and secondary speed change output shaft II
It is parallel with PTO shaft S2.Secondary transmission input shaft one end is connected with main transformer speed output shaft one end, secondary I one end of speed change output shaft connection
Tractor rear axle.Secondary transmission input shaft and secondary speed change output shaft I are provided with 4 pairs of constant mesh gear pairs, wherein secondary transmission input shaft
On 4 gears may be rotatably mounted on secondary transmission input shaft, 4 gears on secondary speed change output shaft I are fixedly mounted on secondary change
On fast output shaft I.The synchronizer III 5 coordinated secondary with 4 pairs of constant mesh gears, synchronizer IV 6 are installed, together on secondary transmission input shaft
Step device III 5, synchronizer IV 6 can slide axially, be combined with two side gears, passing power, form 4 gears.Secondary speed change output
Rotatably mounted on axis II to have preceding bridge transfer gear 7, preceding bridge transfer gear 7 is meshed with the gear on secondary speed change output shaft I；
Clutch K4 is connected between preceding bridge transfer gear 7 and secondary speed change output shaft II, the knot of forerunner is controlled by clutch K4
Close with separating.Secondary II one end of speed change output shaft connects farm tractor front axle.
Specific power transmission route is as follows：
Power output after stand alone type：Engine → 16 → input shaft of torsional vibration damper S1 → PTO shaft S2 → rear power output
Axis.
Main transmission power transmission：
Advance Hi is kept off：Engine → 16 → input shaft of torsional vibration damper S1 → Hi gear driving gear 2 → Hi gear driven gears
13 → Hi gear clutches K2 → output shaft S4 → headstock output gear 11 → main transformer, 4 → main-gear box of speed input gear T2 → pair
Gearbox T3.
Advance Lo is kept off：Engine → 16 → input shaft of torsional vibration damper S1 → Lo gear driving gear 2 → Lo gear driven gears
13 → Lo gear clutches K1 → output shaft S4 → headstock output gear 11 → main transformer, 4 → main-gear box of speed input gear T2 → pair
Gearbox T3.
Fall back gear：Engine → 16 → input shaft of torsional vibration damper S1 → reverse clutch K3 → reverse gear driving gear 1 →
Reverse gear idle pulley 14 → 15 → output shaft of driven gear S4 that reverses gear → headstock output gear 11 → main transformer speed 4 → main transformer of input gear
Fast case T2 → auxiliary transmission T3.
A part of power of auxiliary transmission T3 is transferred directly to rear axle, and another part power is premenstrual by the combination of clutch K4
Bridge transfer gear 7 is transferred to preceding bridge.
In conclusion engine power can be transferred to tractor by a kind of power shifting and power commutation gear box of tractor
Forward and backward bridge and rear power output shaft, form 32 forward gears and 16 are fallen back gear, while realize that electrichydraulic control 4 wheel driven, two drive and cut
Power output after changing and being free-standing.
Claims (5)
1. a kind of power shifting and power commutation gear box of tractor, including power shifting case（T1）, main-gear box（T2）And pair
Gearbox（T3）, the power shifting case（T1）, main-gear box（T2）And auxiliary transmission（T3）It is arranged in order, power shifting case
（T1）Front end passes through torsional vibration damper（16）It is connected with engine flywheel, auxiliary transmission（T3）Forward and backward with tractor bridge and PTO are defeated
Go out connected；
It is characterized in that：
The power shifting case（T1）Inside it is disposed with input shaft（S1）, output shaft（S4）, reverse gear idler shaft（S3）, power commutation dress
Put and Hi-Lo power shifted speeds；
The power reversing device includes may be rotatably mounted at input shaft（S1）On the driving gear that reverses gear（1）, it is fixedly mounted on
Output shaft（S4）On the driven gear that reverses gear（15）, may be rotatably mounted at the idler shaft that reverses gear（S3）On the idle pulley that reverses gear（14）；Institute
State the idle pulley that reverses gear（14）Respectively with the driving gear that reverses gear（1）With the driven gear that reverses gear（15）Often engagement；The driving gear that reverses gear
（1）With input shaft（S1）Between be connected with reverse clutch（K3）；
The Hi-Lo power shifted speeds include being fixedly mounted on input shaft（S1）On Hi gear driving gear（2）, Lo gear actively
Gear（3）, and may be rotatably mounted at output shaft（S4）On Hi gear driven gear（13）, Lo gear driven gear（12）；It is described
Hi keeps off driving gear（2）Driven gear is kept off with Hi（13）Often engagement, Lo gear driving gears（3）Driven gear is kept off with Lo（12）Often nibble
Close；The Hi keeps off driven gear（13）And output shaft（S4）Between be connected with Hi gear clutch（K2）；The Lo keeps off driven gear
（12）And output shaft（S4）Between be connected with Lo gear clutch（K1）；
Main-gear box（T2）Inside it is disposed with 4 gear synchronizer gearshifts；
Auxiliary transmission（T3）Inside it is disposed with 4 gear synchronizer gearshifts, PTO output devices and forward and backward bridge transfer device.
2. a kind of power shifting according to claim 1 and power commutation gear box of tractor, it is characterised in that：
The power shifting case（T1）Middle output shaft（S4）One end is provided with headstock output gear（11）, input shaft（S1）One end
It is connected with PTO shaft（S2）；The PTO shaft（S2）Through main-gear box（T2）, auxiliary transmission（T3）；
The main-gear box（T2）Inside it is provided with main transformer speed output shaft；In main-gear box（T2）Interior PTO shaft（S2）It is upper rotatable
It is provided with and headstock output gear（11）The main transformer speed input gear being meshed（4）；In main-gear box（T2）Interior PTO shaft
（S2）There are 4 pairs of constant mesh gear pairs, wherein PTO shaft with rotatably mounted on main transformer speed output shaft（S2）On four gears and master
Speed change input gear（4）It is fixedly secured to one another；It is provided with the main transformer speed output shaft and the secondary cooperation of 4 pairs of constant mesh gears
Synchronizer I（9）, synchronizer II（10）, synchronizer I（9）, synchronizer II（10）It can slide axially, be combined with two side gears, be passed
Graduating power, forms 4 gears；
The auxiliary transmission（T3）Inside it is provided with secondary transmission input shaft, secondary speed change output shaft I and secondary speed change output shaft II；The pair
Transmission input shaft one end is connected with main transformer speed output shaft one end, and secondary I one end of speed change output shaft connects tractor rear axle, and secondary speed change is defeated
II one end of shaft connects farm tractor front axle；The pair transmission input shaft and secondary speed change output shaft I are provided with 4 pairs of constant mesh gears
Pair, wherein 4 gears on secondary transmission input shaft may be rotatably mounted on secondary transmission input shaft, 4 on secondary speed change output shaft I
Gear is fixedly mounted on secondary speed change output shaft I；It is provided with the pair transmission input shaft and the secondary cooperation of 4 pairs of constant mesh gears
Synchronizer III（5）, synchronizer IV（6）, synchronizer III（5）, synchronizer IV（6）It can slide axially, be combined with two side gears, be passed
Graduating power, forms 4 gears；It is rotatably mounted on the pair speed change output shaft II to have preceding bridge transfer gear（7）, preceding bridge transfer tooth
Wheel（7）It is meshed with the gear on secondary speed change output shaft I；In the preceding bridge transfer gear（7）Between secondary speed change output shaft II
It is connected with clutch（K4）.
3. a kind of power shifting according to claim 1 and power commutation gear box of tractor, it is characterised in that：It is described fall
Keep off clutch（K3）, Hi gear clutch（K2）Clutch is kept off with Lo（K1）Realized using the multi-disc wet clutch of electrichydraulic control
Power commutates and Hi-Lo power shiftings.
4. a kind of power shifting and power the commutation gear box of tractor according to claim 1 or 3, it is characterised in that：Institute
State reverse clutch（K3）, Hi gear clutch（K2）Clutch is kept off with Lo（K1）In, when wherein any one clutch is in knot
During conjunction state, other two clutches are in discrete state.
5. a kind of power shifting and power the commutation gear box of tractor according to claim 1 or 3, it is characterised in that：Institute
State reverse clutch（K3）, Hi gear clutch（K2）Clutch is kept off with Lo（K1）As the starting realized tractor and moved forward and backward
Function while while being placed in discrete state facilitates main-gear box（T2）And auxiliary transmission（T3）The main clutch of synchronizer gear shift operation
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091861.0U CN207278817U (en) | 2017-08-29 | 2017-08-29 | A kind of power shifting and power commutation gear box of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091861.0U CN207278817U (en) | 2017-08-29 | 2017-08-29 | A kind of power shifting and power commutation gear box of tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207278817U true CN207278817U (en) | 2018-04-27 |
Family
ID=61983941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721091861.0U Withdrawn - After Issue CN207278817U (en) | 2017-08-29 | 2017-08-29 | A kind of power shifting and power commutation gear box of tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207278817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461472A (en) * | 2017-08-29 | 2017-12-12 | 徐州凯尔农业装备股份有限公司 | Power shifting and power commutation gear box of tractor |
-
2017
- 2017-08-29 CN CN201721091861.0U patent/CN207278817U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461472A (en) * | 2017-08-29 | 2017-12-12 | 徐州凯尔农业装备股份有限公司 | Power shifting and power commutation gear box of tractor |
| CN107461472B (en) * | 2017-08-29 | 2023-09-05 | 徐州凯尔农业装备股份有限公司 | Power shift and power reversing tractor gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180427 Effective date of abandoning: 20230905 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180427 Effective date of abandoning: 20230905 |