CN208457125U - Gearbox and tractor transmission system - Google Patents
Gearbox and tractor transmission system Download PDFInfo
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- CN208457125U CN208457125U CN201821101730.0U CN201821101730U CN208457125U CN 208457125 U CN208457125 U CN 208457125U CN 201821101730 U CN201821101730 U CN 201821101730U CN 208457125 U CN208457125 U CN 208457125U
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Abstract
The utility model relates to gearbox and tractor transmission systems, the former includes being parallel to each other first to third axis, first axle includes shuttle-type gear shift input shaft, main transmission input shaft and power take-off drive shaft, it is fixed with drive shift, one to fourth gear driving gear on main transmission input shaft, the input shaft synchronizer that can be engaged with drive shift driving gear is connected on shuttle-type gear shift input shaft；Second axis includes main transformer speed output shaft and secondary transmission input shaft, one is equipped on main transformer speed output shaft to fourth gear driven gear, it is fixed with low, high-grade driving gear on secondary transmission input shaft, one or two grades of synchronizers and three fourth gear synchronizers are also connected on main transformer speed output shaft；Third axis is secondary speed change output shaft, and low, high-grade driven gear is provided on third axis, and high and low shift meshing part is connected on secondary speed change output shaft, and high and low shift meshing part can be engaged with low-grade or high-grade driven gear；The latter has the former.Its is compact-sized, and gear shift is light reliable, and manipulation is merrily and lightheartedly, conveniently.
Description
Technical field
The utility model relates to technical field of mechanical transmission, more particularly, to a kind of gearbox and tractor transmission system.
Background technique
Currently, domestic 50 horsepowers of tractor mainly uses II type gearbox, input shaft and output shaft same vertical flat
In face.
Above-mentioned II type gearbox horizontal space utilization rate is bad, is unfavorable for the arrangement of human engineering, influences riding experience；Separately
Outside, existing gearbox in terms of gear shift mainly use collar shift and shifting slide gear gear shift, gear shift is not smooth enough, steering force compared with
Greatly, comfort is lower, and risk out of supply is higher, and shifting slide gear stroke is larger, causes gearbox axially longer, is unfavorable for dragging
The upgrading of machine drawing.
Utility model content
The utility model is to propose in view of the above problems, and its purpose is to provide a kind of gearboxes and tractor to be driven
System.
The gearbox designs are compact, have saving gear quantity, gear shift light reliable, manipulation is slim and graceful, easy to use, is conducive to
The beneficial effects such as later period upgrading；The optional gear of the tractor transmission system is more and stable transmission is reliable.
To realize that the purpose of this utility model adopts the following technical scheme that.
The utility model of first technical solution is a kind of gearbox, and the gearbox has advancement mechanism.
The advancement mechanism includes first axle, the second axis and third axis.
The first axle includes shuttle-type gear shift input shaft, main transmission input shaft and the power output biography along the setting of same axis
Moving axis.
The main transmission input shaft is hollow shaft, and the main transformer speed input axle sleeve is set to the power take-off drive shaft
On power intake, the power intake of the main transmission input shaft and the power output end of the shuttle-type gear shift input shaft are taken
It connects, is connected between the power intake of the power take-off drive shaft and the shuttle-type gear shift input shaft by spline.
Along power transmission direction, drive shift driving gear, one grade of active are successively fixed on the main transmission input shaft
Gear, two grades of driving gears, third speed drive gear, fourth gear driving gear, also pass through spline on the shuttle-type gear shift input shaft
It is connected with input shaft synchronizer, the clutch collar of the input shaft synchronizer can be engaged with the drive shift driving gear.
Second axis includes the main transformer speed output shaft being arranged along same axis and secondary transmission input shaft, and the main transformer speed is defeated
The power output end of shaft is connect with the power intake of the secondary transmission input shaft, and second axis is parallel to described first
Axis.
First speed driven gear, two grades of driven gears, third gear driven gear and four are provided on the main transformer speed output shaft
Shelves driven gear, and the first speed driven gear, two grades of driven gears, the third gear driven gear and the fourth gear are driven
Gear can be freely rotated around the main transformer speed output shaft respectively, be fixed with low-grade driving tooth on the secondary transmission input shaft
Wheel and high-grade driving gear, the first speed driven gear, two grades of driven gears, the third gear driven gear, the fourth gear
Driven gear, the low-grade driving gear and the high-grade driving gear are set gradually along power transmission direction, in the main transformer
One or two grades of synchronizers and three fourth gear synchronizers, the clutch collar of one or two grades of synchronizers are also connected with by spline on fast output shaft
It can be engaged with the first speed driven gear or two grades of driven gears, the clutch collar of the three fourth gear synchronizer can be with institute
State third gear driven gear or fourth gear driven gear engagement.
The first speed driven gear is often engaged with one grade of driving gear, two grades of driven gears and two grades of masters
Moving gear often engages, and the third gear driven gear is often engaged with the third speed drive gear, the fourth gear driven gear with it is described
Fourth gear driving gear often engages.
The third axis is the secondary speed change output shaft for being parallel to the second axis setting, the edge on the secondary speed change output shaft
Power transmission direction is disposed with low-grade driven gear and high-grade driven gear, and the low-grade driven gear and the top grade
Driven gear can be freely rotated around the secondary speed change output shaft respectively, also be connected by spline on the secondary speed change output shaft
It is connected to high and low shift meshing part, the high and low shift meshing part can be with the low-grade driven gear or the high-grade driven gear
Engagement, the low-grade driven gear are often engaged with the low-grade driving gear, the top grade driven gear and the high-grade active
Gear often engages.
In addition, the gearbox of the second technical solution, in the gearbox of the first technical solution, after the gearbox also has
Move back mechanism.
The withdrawing mechanism includes reverse driving gear, shuttle-type gear shift jackshaft, reverse gear primary transmission driven gear and falls
Shelves secondary transmission driving gear.
The reverse driving gear is set to described in a manner of it can surround the shuttle-type gear shift input shaft and be freely rotated
On shuttle-type gear shift input shaft, the input shaft synchronizer be located at the reverse driving gear and the drive shift driving gear it
Between, the clutch collar of the input shaft synchronizer can be engaged with the reverse driving gear.
The shuttle-type gear shift jackshaft is parallel to the first axle.
The reverse gear primary transmission driven gear and reverse gear secondary transmission driving gear are set gradually along power transmission direction
In on the shuttle-type gear shift jackshaft, the reverse gear primary transmission driven gear is often engaged with the reverse driving gear, described
Reverse gear secondary transmission driving gear is often engaged with the first speed driven gear.
In addition, the gearbox of third technical solution, in the gearbox of the first technical solution, the high and low shift meshing part
For engaging sleeve.
In addition, the gearbox of the 4th technical solution inputs in the gearbox of the first technical solution in the shuttle-type gear shift
The oil distribution seat for lubricating oil to be added into the oilhole of the shuttle-type gear shift input shaft is additionally provided on axis.
In addition, the gearbox of the 5th technical solution, in the gearbox of the first technical solution, one grade of driving gear and
Two grades of driving gears are an integral structure with the main transmission input shaft.
In addition, the gearbox of the 6th technical solution, in the gearbox of the first technical solution, the low grade driving gear with
The pair speed change output shaft is an integral structure.
In addition, the gearbox of the 7th technical solution, in the gearbox of the first technical solution, the drive shift driving tooth
Wheel, the third speed drive gear, the fourth gear driving gear pass through spline respectively and are set on the main transmission input shaft.
In addition, the gearbox of the 8th technical solution, in the gearbox of the first technical solution, the top grade driving gear is logical
Spline is crossed to be set on the secondary transmission input shaft.
In addition, the gearbox of the 9th technical solution, in the gearbox of the second technical solution, the reverse gear primary transmission from
Moving gear and the reverse gear secondary transmission driving gear pass through spline respectively and are set on the shuttle-type gear shift jackshaft.
Tenth technical solution provides a kind of tractor transmission system comprising the first technical solution to the 9th technical solution
In any one gearbox.
Compared with prior art, by adopting the above technical scheme, the utility model can generate following beneficial effect.
Currently, domestic 50 horsepowers of tractor mainly uses II type gearbox, input shaft and output shaft same vertical flat
In face.
Above-mentioned II type gearbox horizontal space utilization rate is bad, is unfavorable for the arrangement of human engineering, influences riding experience；Separately
Outside, existing gearbox in terms of gear shift mainly use collar shift and shifting slide gear gear shift, gear shift is not smooth enough, steering force compared with
Greatly, comfort is lower, and risk out of supply is higher, and shifting slide gear stroke is larger, causes gearbox axially longer, is unfavorable for dragging
The upgrading of machine drawing.
In contrast, the utility model provides a kind of gearbox and tractor transmission system.
The gearbox has advancement mechanism.
Advancement mechanism includes first axle, the second axis and third axis.
First axle includes shuttle-type gear shift input shaft, main transmission input shaft and the power output transmission along the setting of same axis
Axis.
Main transmission input shaft is hollow shaft, and main transformer speed input axle sleeve is set to the power intake of power take-off drive shaft
On, the power intake of main transmission input shaft and the power output end of shuttle-type gear shift input shaft overlap, power take-off drive shaft
It is connected between power intake and shuttle-type gear shift input shaft by spline.
Along power transmission direction, be successively fixed on main transmission input shaft drive shift driving gear, one grade of driving gear,
Two grades of driving gears, third speed drive gear, fourth gear driving gear are also connected with input by spline on shuttle-type gear shift input shaft
The clutch collar of axis synchronizer, input shaft synchronizer can be engaged with drive shift driving gear.
Second axis includes the main transformer speed output shaft and secondary transmission input shaft along the setting of same axis, and main transformer speed output shaft moves
Power output end is connect with the power intake of secondary transmission input shaft, and the second axis is parallel to first axle.
Be provided on main transformer speed output shaft first speed driven gear, two grades of driven gears, third gear driven gear and fourth gear from
Moving gear, and first speed driven gear, two grades of driven gears, third gear driven gear and fourth gear driven gear can surround main transformer respectively
Fast output shaft is freely rotated, and low-grade driving gear and high-grade driving gear, one grade of driven tooth are fixed on secondary transmission input shaft
Wheel, two grades of driven gears, third gear driven gear, fourth gear driven gear, low-grade driving gear and high-grade driving gear are passed along power
Defeated direction is set gradually, and is also connected with one or two grades of synchronizers and three fourth gear synchronizers by spline on main transformer speed output shaft, and one
The clutch collar of two grades of synchronizers can be engaged with first speed driven gear or two grades of driven gears, the clutch collar energy of three fourth gear synchronizers
It is enough to be engaged with third gear driven gear or fourth gear driven gear.
First speed driven gear is often engaged with one grade of driving gear, and two grades of driven gears are often engaged with two grades of driving gears, and three
Shelves driven gear is often engaged with third speed drive gear, and fourth gear driven gear is often engaged with fourth gear driving gear.
Third axis is the secondary speed change output shaft for being parallel to the setting of the second axis, along power transmission direction on secondary speed change output shaft
It is disposed with low-grade driven gear and high-grade driven gear, and low-grade driven gear and high-grade driven gear can surround respectively
Secondary speed change output shaft is freely rotated, and is also connected with high and low shift meshing part by spline on secondary speed change output shaft, high and low shift is nibbled
Closing component can engage with low-grade driven gear or high-grade driven gear, and low-grade driven gear is often engaged with low-grade driving gear,
High-grade driven gear is often engaged with high-grade driving gear.
The tractor transmission system has above-mentioned gearbox.
The gearbox of the utility model realizes the power of eight kinds of gears of drive shift by first axle, the second axis and third axis
Output, in II type gearbox, installs the power output that eight gears are just able to achieve eight kinds of gears on two axis respectively and compares, this
The gearbox designs of utility model are more compact, have the beneficial effect for saving gear quantity, in addition, the main transformer of the utility model
Fast input shaft and main transformer speed output shaft application synchronizer shift, have gear shift it is light, manipulation it is slim and graceful, easy to use, be conducive to the later period
The beneficial effects such as upgrading.The optional gear of the tractor transmission system of the utility model is more and stable transmission is reliable.
The utility model can be used for paddy-field-working, and human engineering is reasonable in actual use, and gear shift is happy, light, being capable of band
Carry out higher riding experience.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in 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 that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the overall structure diagram for indicating the specific embodiment of gearbox provided by the utility model.
Appended drawing reference: S1- shuttle-type gear shift input shaft；S2- shuttle-type gear shift jackshaft；S3- main transformer speed output shaft；S4- main transformer
Fast input shaft；S5- power take-off drive shaft；S6- pair transmission input shaft；S7- pair speed change output shaft；1- oil distribution seat；2- reverse gear master
Moving gear；3- input shaft synchronizer；4- drive shift driving gear；5- reverse gear primary transmission driven gear；6- reverse gear secondary transmission
Driving gear；7- first speed driven gear；Mono- grade of driving gear of 8-；Mono- or two grades of synchronizers of 9-；Bis- grades of driven gears of 10-；Bis- grades of 11-
Driving gear；12- third gear driven gear；13- third speed drive gear；Tri- fourth gear synchronizer of 14-；15- fourth gear driven gear；16-
Fourth gear driving gear；17- low grade driven gear；18- low grade driving gear；19- high and low shift meshing part；20- top grade driven tooth
Wheel；21- top grade driving gear.
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 a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "inner", "outside" etc. refer to
The orientation or positional relationship shown be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the utility model and
Simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construction
And operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " are only used for retouching
Purpose is stated, relative importance is not understood to indicate or imply.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
Below according to the overall structure of jumbo bag extruder provided by the utility model, its specific embodiment is illustrated.
Fig. 1 is the overall structure diagram for indicating the specific embodiment of gearbox provided by the utility model.
As shown in Figure 1, the gearbox has advancement mechanism.
Specifically, which includes first axle, the second axis and third axis.
First axle includes passing along shuttle-type gear shift input shaft S1, the main transmission input shaft S4 and power output of the setting of same axis
Moving axis S5.
Main transmission input shaft S4 is hollow shaft, and the power that main transmission input shaft S4 is sheathed on power take-off drive shaft S5 is defeated
Enter on end, the power intake of main transmission input shaft S4 and the power output end of shuttle-type gear shift input shaft S1 overlap, power output
It is connected between the power intake and shuttle-type gear shift input shaft S1 of transmission shaft S5 by spline.
Along power transmission direction, 4, one grades of driving tooths of drive shift driving gear are successively fixed on main transmission input shaft S4
8, two grades of driving gears 11, third speed drive gear 13, fourth gear driving gears 16 are taken turns, also pass through flower on shuttle-type gear shift input shaft S1
Key connection has input shaft synchronizer 3, and the clutch collar of input shaft synchronizer 3 can be engaged with drive shift driving gear 4.
Second axis includes the main transformer speed output shaft S3 and secondary transmission input shaft S6 along the setting of same axis, the output of main transformer speed
The power output end of axis S3 is connect with the power intake of secondary transmission input shaft S6, and the second axis is parallel to first axle.
7, two grades of driven gears 10 of first speed driven gear, 12 and of third gear driven gear are provided on main transformer speed output shaft S3
Fourth gear driven gear 15, and 7, two grades of driven gears 10 of first speed driven gear, third gear driven gear 12 and fourth gear driven gear 15
It can be freely rotated respectively around main transformer speed output shaft S3, low-grade 18 He of driving gear is fixed on secondary transmission input shaft S6
High-grade driving gear 21 is 7, two grades of driven gears 10 of first speed driven gear, third gear driven gear 12, fourth gear driven gear 15, low
Shelves driving gear 18 and high-grade driving gear 21 are set gradually along power transmission direction, also pass through flower on main transformer speed output shaft S3
Key connection has the clutch collar of one or two grades of synchronizers 9 and three 14,1 grades of synchronizers 9 of fourth gear synchronizer can be with first speed driven gear
7 or two grades of driven gears 10 engage, the clutch collar of three fourth gear synchronizers 14 can be with third gear driven gear 12 or fourth gear driven tooth
15 engagement of wheel.
First speed driven gear 7 is often engaged with one grade of driving gear 8, and two grades of driven gears 10 are often nibbled with two grades of driving gears 11
It closes, third gear driven gear 12 is often engaged with third speed drive gear 13, and fourth gear driven gear 15 is often engaged with fourth gear driving gear 16.
Third axis is the secondary speed change output shaft S7 for being parallel to the setting of the second axis, along power transmission on secondary speed change output shaft S7
Direction is disposed with low-grade driven gear 17 and high-grade driven gear 20, and low-grade driven gear 17 and high-grade driven gear
20 can be freely rotated around pair speed change output shaft S7 respectively, also be connected with high and low shift by spline on secondary speed change output shaft S7
Meshing part 19, high and low shift meshing part 19 can be engaged with low-grade driven gear 17 or high-grade driven gear 20, low-grade driven
Gear 17 is often engaged with low-grade driving gear 18, and high-grade driven gear 20 is often engaged with high-grade driving gear 21.
Further, which also has withdrawing mechanism.
Specifically, above-mentioned withdrawing mechanism include reverse driving gear 2, shuttle-type gear shift jackshaft S2, reverse gear primary transmission from
Moving gear 5 and reverse gear secondary transmission driving gear 6.
It is defeated that reverse driving gear 2 is set to shuttle-type gear shift in a manner of it can surround shuttle-type gear shift input shaft S1 and be freely rotated
Enter on axis S1, input shaft synchronizer 3 between reverse driving gear 2 and drive shift driving gear 4, input shaft synchronizer 3
Clutch collar can be engaged with reverse driving gear 2.
Shuttle-type gear shift jackshaft S2 is parallel to first axle.
Reverse gear primary transmission driven gear 5 and reverse gear secondary transmission driving gear 6 are set in turn in along power transmission direction
On shuttle-type gear shift jackshaft S2, reverse gear primary transmission driven gear 5 is often engaged with reverse driving gear 2, reverse gear secondary transmission master
Moving gear 6 is often engaged with first speed driven gear 7.
In addition, above-mentioned high and low shift meshing part 19 is engaging sleeve.
In addition, being additionally provided on shuttle-type gear shift input shaft S1 for being added into the oilhole of shuttle-type gear shift input shaft S1
The oil distribution seat 1 of lubricating oil.
In addition, one grade of driving gear 8 and two grades of driving gears 11 are an integral structure with main transmission input shaft S4.
In addition, low grade driving gear 18 and pair speed change output shaft S7 is an integral structure.
In addition, drive shift driving gear 4, third speed drive gear 13, fourth gear driving gear 16 are set to by spline respectively
On main transmission input shaft S4.
In addition, high-grade driving gear 21 is set on secondary transmission input shaft S6 by spline.
In addition, reverse gear primary transmission driven gear 5 and reverse gear secondary transmission driving gear 6 are set to shuttle by spline respectively
On formula gear shift jackshaft S2.
In addition, the utility model additionally provides a kind of tractor transmission system comprising above-mentioned gearbox.
It should be strongly noted that in above-mentioned specific structure, first speed driven gear 7, two grades of driven gears 10, third gear
Driven gear 12 and fourth gear driven gear 15 can be freely rotated around main transformer speed output shaft S3 respectively, 17 and of low-grade driven gear
High-grade driven gear 20 can be freely rotated respectively around pair speed change output shaft S7 and reverse driving gear 2 can surround shuttle
Formula gear shift input shaft S1 is freely rotated and can be achieved by rolling bearing connection structure, which can roll for needle-type
Bearing or deep groove ball bearing or self-aligning ball bearing etc..
The specific structure of gearbox provided by the utility model is illustrated above, illustrate below it operating method and
The method of operation.
Its gear selection and mode of operation are as follows:
Drive shift: manipulation shift mechanism combines input shaft synchronizer 3 with drive shift driving gear 4, transmission at this time
Route are as follows: shuttle-type gear shift input shaft S1 → input shaft 3 → drive shift of synchronizer driving gear 4 → main transmission input shaft S4.
Reverse gear: manipulation shift mechanism combines input shaft synchronizer 3 with reverse driving gear 2, drive line at this time
Are as follows: shuttle-type gear shift input shaft S1 → reverse driving gear 2 → reverse gear primary transmission driven gear 5 → shuttle-type gear shift jackshaft S2 →
Reverse gear secondary transmission driving gear 6 → main variable part.
Gear change after shuttle-type gear shift part enters main speed-changing mechanism, in main variable part are as follows:
One grade: manipulation shift mechanism combines one or two grades of synchronizers 9 with first speed driven gear 7, drive path at this time
Are as follows: shuttle-type gear shift section → main transmission input shaft S4 → first speed driven gear 7 → mono- or two grade synchronizer 9 → main transformer speed output shaft S3
→ pair variable part.
Two grades: manipulation shift mechanism combines one or two grades of synchronizers 9 with two grades of driven gears 10, drive path at this time
Are as follows: shuttle-type gear shift section → 10 → 1 grades of main transmission input shaft S4 → bis- grade driven gear synchronizer 9 → main transformer speed output shaft
S3 → pair variable part.
Third gear: manipulation shift mechanism combines three fourth gear synchronizers 14 with third gear driven gear 12, transmission road at this time
Line are as follows: shuttle-type gear shift section → main transmission input shaft S4 → 13 → third gear of third speed drive gear driven gear, 12 → tri- fourth gear is synchronous
Device 14 → main transformer speed output shaft S3 → pair variable part.
Fourth gear: manipulation shift mechanism combines three fourth gear synchronizers 14 with fourth gear driven gear 15, transmission road at this time
Line are as follows: shuttle-type gear shift section → main transmission input shaft S4 → 15 → tri- fourth gear of fourth gear 16 → fourth gear of driving gear driven gear is synchronous
Device 14 → main transformer speed output shaft S3 → pair variable part.
Transforming gear after main transformer speed section enters secondary speed change section, in secondary speed change section are as follows:
Low-grade: manipulation shift mechanism combines high and low shift meshing part 19 with low-grade driven gear 17, transmission at this time
Route are as follows: main variable part → pair transmission input shaft S6 → low grade 17 → high and low shift of driven gear meshing part 19 → pair speed change is defeated
Shaft S7 → output.
High-grade: manipulation shift mechanism combines high and low shift meshing part 19 with high-grade driven gear 20, transmission at this time
Route are as follows: main variable part → pair transmission input shaft S6 → top grade driving gear 21 → top grade 20 → high and low shift of driven gear engagement
Component 19 → pair speed change output shaft S7 → output.
Wherein, power take-off drive shaft S5 is used to one end of shuttle-type gear shift input shaft S1 being connected to gearbox by bearing
On shell, and then shuttle-type gear shift input shaft S1 is supported.
The gearbox of the utility model realizes the power of eight kinds of gears of drive shift by first axle, the second axis and third axis
Output, in II type gearbox, installs the power output that eight gears are just able to achieve eight kinds of gears on two axis respectively and compares, this
The gearbox designs of utility model are more compact, have the beneficial effect for saving gear quantity, in addition, the main transformer of the utility model
Fast input shaft and main transformer speed output shaft application synchronizer shift, have gear shift it is light, manipulation it is slim and graceful, easy to use, be conducive to the later period
The beneficial effects such as upgrading.The optional gear of the tractor transmission system of the utility model is more and stable transmission is reliable.
The utility model can be used for paddy-field-working, and human engineering is reasonable in actual use, and gear shift is happy, light, being capable of band
Carry out higher riding experience.
In addition, in above-mentioned specific embodiment, the setting of withdrawing mechanism as above can be such that back operation has and advance
The gear of the identical quantity of shelves constitutes 8+8 gear shift configuration with drive shift for example, in specific embodiment as above, and drive shift with
Switching between reverse drive gear need to only stir input shaft synchronizer 3, and switching is simple and convenient, comfortable reliable.
In addition, setting high and low shift meshing part is engaging sleeve in above-mentioned specific embodiment, high and low shift can be met and nibbled
Close the stable engagement between component and low-grade driven gear or high-grade driven gear.
In addition, in above-mentioned specific embodiment, it is additionally provided on shuttle-type gear shift input shaft for shuttle-type gear shift
The oil distribution seat of lubricating oil is added in the oilhole of input shaft, thus, it can be added by oil distribution seat into the oilhole of shuttle-type gear shift input shaft
Lubricating oil is to guarantee the rotation fluency of shuttle-type gear shift input shaft.
In addition, being carried out in above-mentioned specific embodiment to the specific structure of gearbox provided by the utility model
Illustrate, but not limited to this.
For example, the structure type of withdrawing mechanism is also possible to be formed are as follows: including reverse gear in above-mentioned specific embodiment
Driving gear 2, shuttle-type gear shift jackshaft S2, reverse gear primary transmission driven gear 5 and reverse gear secondary transmission driving gear 6, are also wrapped
Include the additional gear being fixed on main transformer speed output shaft.
Wherein, reverse driving gear 2 is set to shuttle-type in a manner of it can surround shuttle-type gear shift input shaft S1 and be freely rotated
On gear shift input shaft S1, for input shaft synchronizer 3 between reverse driving gear 2 and drive shift driving gear 4, input shaft is synchronous
The clutch collar of device 3 can be engaged with reverse driving gear 2.
Shuttle-type gear shift jackshaft S2 is parallel to first axle.
Reverse gear primary transmission driven gear 5 and reverse gear secondary transmission driving gear 6 are set in turn in along power transmission direction
On shuttle-type gear shift jackshaft S2, reverse gear primary transmission driven gear 5 is often engaged with reverse driving gear 2, reverse gear secondary transmission master
Moving gear 6 is not engaged with first speed driven gear 7, and is often engaged with additional gear.
In this way, its reverse gear process is as follows: manipulation shift mechanism combines input shaft synchronizer 3 with reverse driving gear 2,
Drive line at this time are as follows: shuttle-type gear shift input shaft S1 → reverse driving gear 2 → reverse gear primary transmission 5 → shuttle-type of driven gear
Gear shift jackshaft S2 → reverse gear secondary transmission driving gear 6 → pair variable part replaces the corresponding construction in specific embodiment
Afterwards, falling back gear number is two, and what same achievable the utility model was realized in advance reduces volume by the transmission of three axis, makes structure
It is compact, and the function that gear shift is light, it should be apparent, however, that after replacement, compared with specific embodiment, the gear number of reverse gear
It tails off, adjusts changeable not as good as the flexible structure in specific embodiment.
In addition, setting high and low shift meshing part is engaging sleeve, and but not limited to this in above-mentioned specific embodiment,
The high and low shift meshing part is also possible to synchronizer, can equally meet high and low shift meshing part and low-grade driven gear or it is high-grade from
Engaged transmission between moving gear still in fact, the output speed of secondary speed change output shaft is low, can be realized using engaging sleeve
Stable drive, and do not need to expend too many strength and the gear-change operation of secondary variable part can be realized, on the contrary, if using synchronizing
Device, lock ring are easily damaged, and may cause the big problem of maintenance difficulty, thus, preferentially use engaging sleeve to engage as high and low shift
Component carry out using.
In addition, in above-mentioned specific embodiment, it is additionally provided on shuttle-type gear shift input shaft for shuttle-type gear shift
The oil distribution seat of lubricating oil is added in the oilhole of input shaft, but not limited to this, it can also be not provided with above-mentioned oil distribution seat, and it is regular
Lubricating oil is added into the oilhole of shuttle-type gear shift input shaft manually, it is same to can be achieved to be lubricated shuttle-type gear shift input shaft, from
And guarantee the function of the flow rotation of shuttle-type gear shift input shaft, still, according to the structure in specific embodiment, it is arranged above-mentioned
Oil distribution seat can sufficiently avoid the generation of oil leakage phenomenon in refueling process, and can be made by the oil distribution seat repairing into oilhole in time
With more reliable.
In addition, in above-mentioned specific embodiment, one grade of driving gear and two grades of driving gears and main transmission input shaft
It is an integral structure；Low-grade driving gear is an integral structure with secondary speed change output shaft；Drive shift driving gear, third gear driving tooth
Wheel, fourth gear driving gear pass through spline respectively and are set on main transmission input shaft；High-grade driving gear is set to pair by spline
On transmission input shaft；Reverse gear primary transmission driven gear and reverse gear secondary transmission driving gear pass through spline respectively and are set to shuttle-type
On gear shift jackshaft.
But not limited to this, wherein between one grade of driving gear and two grades of driving gears and main transmission input shaft S4, low-grade
It is also possible to connect by spline respectively between driving gear and secondary speed change output shaft；Drive shift driving gear, third gear driving tooth
Wheel, fourth gear driving gear are respectively integral type connection structure with main transmission input shaft；High-grade driving gear can be inputted with secondary speed change
It is integral type connection structure between axis；Reverse gear primary transmission driven gear and reverse gear secondary transmission driving gear can respectively with shuttle-type
Gear shift jackshaft is integral type connection structure, after replacement, speed changing function can be achieved, still, according in specific embodiment
Structure is specifically designed, and disassembly process is easier, in addition, its structural strength is more reliable in main transformer speed section.
In addition, multiple groups driving gear, phase can also be increased on main transformer speed output shaft in above-mentioned specific embodiment
Multiple synchronizers should be configured, alternatively, increasing multiple groups pair transmission gear group on secondary transmission input shaft and secondary speed change output shaft, accordingly
Multiple gear meshing parts are configured, the gear shift transmission etc. more than eight gears is realized with this.
In addition, in order to increase the use reliability of tractor transmission system wet type can be configured for the tractor transmission system
Single platen self-boosting type structure, and power transmission is carried out to shuttle-type gear shift input shaft S1 using wet clutch, manipulation is slim and graceful, makes
With conveniently.
In addition, between settable low grade driven gear and low-grade driving gear and high-grade driven gear and top grade driving gear
Between the transmission of straight-tooth external gear pump is respectively adopted, to keep structure simple, convenient for lift high-clearance, be conducive to paddy-field-working.
In addition, the gearbox and tractor transmission system of the utility model, it can be by the various structure groups of above embodiment
It closes, can equally play above-mentioned effect.
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 present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of gearbox, which is characterized in that the gearbox has advancement mechanism,
The advancement mechanism includes first axle, the second axis and third axis,
The first axle includes shuttle-type gear shift input shaft, main transmission input shaft (S4) and the power output biography along the setting of same axis
Moving axis (S5),
The main transmission input shaft (S4) is hollow shaft, and the main transmission input shaft (S4) is sheathed on the power output transmission
On the power intake of axis (S5), the power intake of the main transmission input shaft (S4) and the shuttle-type gear shift input shaft (S1)
Power output end overlap joint, the power intake of the power take-off drive shaft (S5) and the shuttle-type gear shift input shaft (S1) it
Between by spline connect,
Along power transmission direction, drive shift driving gear (4), one grade of master are successively fixed on the main transmission input shaft (S4)
Moving gear (8), two grades of driving gears (11), third speed drive gear (13), fourth gear driving gear (16), it is defeated in the shuttle-type gear shift
Enter and be also connected with input shaft synchronizer (3) by spline on axis (S1), the clutch collar of the input shaft synchronizer (3) can be with institute
State drive shift driving gear (4) engagement；
Second axis includes the main transformer speed output shaft (S3) and secondary transmission input shaft (S6) along the setting of same axis, the main transformer
The power output end of fast output shaft (S3) is connect with the power intake of the secondary transmission input shaft (S6), and second axis is parallel
In the first axle,
First speed driven gear (7), two grades of driven gears (10), third gear driven tooths are provided on the main transformer speed output shaft (S3)
Take turns (12) and fourth gear driven gear (15), and the first speed driven gear (7), two grades of driven gears (10), the third gear
Driven gear (12) and the fourth gear driven gear (15) can be freely rotated around the main transformer speed output shaft (S3) respectively,
Low-grade driving gear (18) and high-grade driving gear (21), one grade of driven tooth are fixed on the pair transmission input shaft (S6)
Take turns (7), two grades of driven gears (10), the third gear driven gear (12), the fourth gear driven gear (15), the low grade
Driving gear (18) and the high-grade driving gear (21) set gradually along power transmission direction, in the main transformer speed output shaft
(S3) one or two grades of synchronizers (9) and three fourth gear synchronizers (14) are also connected with by spline on, one or two grades of synchronizers (9)
Clutch collar can be engaged with the first speed driven gear (7) or two grades of driven gears (10), the three fourth gear synchronizer
(14) clutch collar can be engaged with the third gear driven gear (12) or the fourth gear driven gear (15),
The first speed driven gear (7) is often engaged with one grade of driving gear (8), two grades of driven gears (10) with it is described
Two grades of driving gears (11) are often engaged, and the third gear driven gear (12) is often engaged with the third speed drive gear (13), described
Fourth gear driven gear (15) is often engaged with the fourth gear driving gear (16)；
The third axis is the secondary speed change output shaft (S7) for being parallel to the second axis setting, in the secondary speed change output shaft (S7)
On along power transmission direction successively have low-grade driven gear (17) and high-grade driven gear (20), and the low-grade driven gear
(17) it can be freely rotated respectively around the secondary speed change output shaft (S7) with the high-grade driven gear (20), in the secondary change
It is also connected with high and low shift meshing part (19) by spline on fast output shaft (S7), the high and low shift meshing part (19) can be with
The low grade driven gear (17) or the high-grade driven gear (20) are engaged, the low grade driven gear (17) and the low grade
Driving gear (18) often engages, and the top grade driven gear (20) is often engaged with the high-grade driving gear (21).
2. gearbox according to claim 1, which is characterized in that the gearbox also has withdrawing mechanism,
The withdrawing mechanism includes reverse driving gear (2), shuttle-type gear shift jackshaft (S2), reverse gear primary transmission driven gear
(5) and reverse gear secondary transmission driving gear (6),
The reverse driving gear (2) is set to institute in a manner of it can surround the shuttle-type gear shift input shaft (S1) and be freely rotated
It states on shuttle-type gear shift input shaft (S1), the input shaft synchronizer (3) is located at the reverse driving gear (2) and the drive shift
Between driving gear (4), the clutch collar of the input shaft synchronizer (3) can be engaged with the reverse driving gear (2)；
The shuttle-type gear shift jackshaft (S2) is parallel to the first axle；
The reverse gear primary transmission driven gear (5) and reverse gear secondary transmission driving gear (6) are successively set along power transmission direction
It is placed on the shuttle-type gear shift jackshaft (S2), the reverse gear primary transmission driven gear (5) and the reverse driving gear (2)
Often engagement, the reverse gear secondary transmission driving gear (6) are often engaged with the first speed driven gear (7).
3. gearbox according to claim 1, which is characterized in that the high and low shift meshing part (19) is engaging sleeve.
4. gearbox according to claim 1, which is characterized in that be additionally provided on the shuttle-type gear shift input shaft (S1)
For the oil distribution seat (1) of lubricating oil to be added into the oilhole of the shuttle-type gear shift input shaft (S1).
5. gearbox according to claim 1, which is characterized in that one grade of driving gear (8) and two grades of actives
Gear (11) is an integral structure with the main transmission input shaft (S4).
6. gearbox according to claim 1, which is characterized in that the low grade driving gear (18) and the secondary speed change are defeated
Shaft (S7) is an integral structure.
7. gearbox according to claim 1, which is characterized in that the drive shift driving gear (4), the third gear are actively
Gear (13), the fourth gear driving gear (16) are set on the main transmission input shaft (S4) by spline respectively.
8. gearbox according to claim 1, which is characterized in that the top grade driving gear (21) is set to by spline
On the pair transmission input shaft (S6).
9. gearbox according to claim 2, which is characterized in that the reverse gear primary transmission driven gear (5) and described
Reverse gear secondary transmission driving gear (6) is set on the shuttle-type gear shift jackshaft (S2) by spline respectively.
10. a kind of tractor transmission system, which is characterized in that including gearbox described in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821101730.0U CN208457125U (en) | 2018-07-12 | 2018-07-12 | Gearbox and tractor transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821101730.0U CN208457125U (en) | 2018-07-12 | 2018-07-12 | Gearbox and tractor transmission system |
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| Publication Number | Publication Date |
|---|---|
| CN208457125U true CN208457125U (en) | 2019-02-01 |
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ID=65172281
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821101730.0U Active CN208457125U (en) | 2018-07-12 | 2018-07-12 | Gearbox and tractor transmission system |
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| CN (1) | CN208457125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735888A (en) * | 2019-10-12 | 2020-01-31 | 山东五征集团有限公司 | Two-shaft integrated multi-gear gearbox |
-
2018
- 2018-07-12 CN CN201821101730.0U patent/CN208457125U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735888A (en) * | 2019-10-12 | 2020-01-31 | 山东五征集团有限公司 | Two-shaft integrated multi-gear gearbox |
| CN110735888B (en) * | 2019-10-12 | 2024-05-28 | 山东五征集团有限公司 | Two-shaft integrated multi-gear gearbox |
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Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai leiwo Heavy Industry Co.,Ltd. Address before: 261000 No.192, Beihai South Road, Fangzi District, Weifang City, Shandong Province Patentee before: LOVOL HEAVY INDUSTRY Co.,Ltd. |
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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. |