CN107676434A - A kind of 12+12 gear gearboxes and its harvest machinery - Google Patents

A kind of 12+12 gear gearboxes and its harvest machinery Download PDF

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Publication number
CN107676434A
CN107676434A CN201711154512.3A CN201711154512A CN107676434A CN 107676434 A CN107676434 A CN 107676434A CN 201711154512 A CN201711154512 A CN 201711154512A CN 107676434 A CN107676434 A CN 107676434A
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CN
China
Prior art keywords
gear
speed
grade
driven gear
driven
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711154512.3A
Other languages
Chinese (zh)
Inventor
王志全
李建启
亓文正
赵文科
潘龙龙
韩涛
樊建
李天强
朱昊
蒋淑娟
李晓彤
李金鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lovol Heavy Industry Co Ltd
Original Assignee
Lovol Heavy Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lovol Heavy Industry Co Ltd filed Critical Lovol Heavy Industry Co Ltd
Priority to CN201711154512.3A priority Critical patent/CN107676434A/en
Publication of CN107676434A publication Critical patent/CN107676434A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/20—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0078—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratio comprising twelve or more forward speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/0082—Transmissions for multiple ratios characterised by the number of reverse speeds

Abstract

The invention provides a kind of 12+12 gear gearboxes and its harvest machinery, gearbox includes casing, and clutch unit, power shuttle gear-shifting unit, main variable-speed unit and secondary variable-speed unit are provided with the casing；The clutch unit, power shuttle gear-shifting unit, main variable-speed unit and secondary variable-speed unit are connected successively；The main clutch unit includes torsional damper, for being connected 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, for realizing the conversion of four gears.The present invention 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

A kind of 12+12 gear gearboxes and its harvest machinery
Technical field
The present invention relates to gearbox technical field, more particularly, to a kind of 12+12 gear gearboxes and its harvest machinery.
Background technology
At present, China's tractor widely uses balladeur train and engaging sleeve both gearshift modes, and small part is using synchronous Device gearshift mode.The farm machinery of tractor class, when farmland operation is shifted gears, clutch is typically first depressed, makes gearbox gear Wheel idle running, is loosened the clutch again after switching gear, and vehicle is run according to the speed after gearshift.
It is disadvantageous in that：When non-powered tractor class farm machinery climbing or farming run into larger resistance or When turn commutation needs gearshift, need to first pass through, it is necessary to frequently commutate particularly during paddy-field-working, during commutation 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.
The content of the invention
It is an object of the invention to provide a kind of 12+12 gear gearboxes and its harvest machinery, to solve in the prior art Need to first pass through separation clutch cut-out engine power during existing commutation, then operate the direction that shift handle changes transmission, Realize and advance or fall back, manipulation is cumbersome, reduces operating efficiency, time-consuming, the technical problem of excessive fuel consumption.
In order to solve the above technical problems, a kind of 12+12 gear gearboxes provided by the invention, including：Casing；
Clutch unit, power shuttle gear-shifting unit, main variable-speed unit and secondary variable-speed unit are provided with the casing；
The clutch unit, power shuttle gear-shifting unit, main variable-speed unit and secondary variable-speed unit are connected successively；
The main clutch unit includes torsional damper, for being connected 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, for realizing the conversion of four gears；
The secondary variable-speed unit is used for the conversion for realizing high, medium and low three gears.
The main clutch part of the present invention is divided into torsional damper, can effectively buffer engine start to transmission device below Impact, noise in engine starting process can be reduced, 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 Do not cut off and complete 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 with the casing 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 connected by the main transmission input shaft and the power shuttle gear-shifting unit；
The secondary variable-speed unit includes：Main transformer speed output shaft, secondary transmission input shaft and secondary speed change take-off (propeller) shaft；
The secondary variable-speed unit is 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 Commutated with power and input 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 also includes：Reverse driving gear, forward gear driving gear, reverse gear Idle pulley, reverse gear driven gear, drive shift driven gear, often engagement driving gear and often engage 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 arranged in the casing, 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 connected with the both ends of the wet clutch；
The often engagement driving gear is commutated on output shaft by spline package in the power, the often engagement driven tooth Wheel is fixed on the main transmission input shaft；The often engagement driving gear and the often engagement driven gear keep engaged transmission Connection status；
The reverse driving gear is 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 the idler shaft by bearing；
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 State 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 connected respectively with the combination gear rings 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 connected respectively with the combination gear rings 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 synchronizations Device and fourth gear driving gear are sleeved on the main transmission input shaft successively；
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 the main transformer speed output shaft successively.
Further, the secondary variable-speed unit includes：Secondary speed change often engages driving gear, middle-grade engaging sleeve, high and low shift and nibbled 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 secondary 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 secondary speed change often engages driven gear and is fixed in low-grade driving gear on the secondary transmission input shaft；
The middle-grade engaging sleeve is by the way that on secondary transmission input shaft, the middle-grade driving gear passes through bearing described in spline package Rotatably it is 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 selectively it is 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 secondary 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, Or 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 present invention has the advantages that：
The present invention is simple in construction, easy to use, and hair can be effectively buffered by setting main clutch part to be divided into torsional damper Motivation starts impact to transmission device below, can reduce the noise in engine starting process, reduce mill between gear Damage；Power shuttle gear-shifting unit realizes being switched fast for forward gear and reverse gear by wet clutch by oil pressure, can not cut The lower operating efficiency realized steady commutation, improve tractor under conditions of disconnected power, reduces the fatigue strength of driver, full The a variety of special operation requirements of foot.
In addition, the invention also discloses a kind of harvest machinery with above-mentioned gearbox, it includes engine and center passes Motivation structure；
The bell housing of the engine is connected with described torsional damper one end；The secondary speed change output of the secondary variable-speed unit Axle is connected with the central control mechanism.
Brief description of the drawings
Below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of gearbox provided in an embodiment of the present invention.
Reference：
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；The synchronizers 34 of 34- tri- or four；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.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ", The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation, With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ", " the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in invention.
With reference to specific embodiment the present invention will be further explained explanation.
As shown in figure 1, a kind of 12+12 gear gearboxes that the present embodiment provides, including：Casing；
Clutch unit 101, power shuttle gear-shifting unit 102, main variable-speed unit 103 and secondary speed change list are provided with casing 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；
Main clutch unit 101 includes torsional damper, for being connected 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, for realizing the conversion of four gears；
Secondary variable-speed unit 104 is used for the conversion for realizing high, medium and low three gears.
The main clutch part of the present invention is divided into torsional damper, can effectively buffer engine start to transmission device below Impact, noise in engine starting process can be reduced, 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 with casing 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, secondary 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 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, secondary transmission input shaft S5 and secondary speed change take-off (propeller) shaft S6；
Secondary variable-speed unit 104 is connected by main transformer speed output shaft S4 and main variable-speed unit 103.
In clutch unit 101, the one end of torsional damper 1 is connected with flywheel shell of engine, and the other end commutates defeated with power Enter axle S1 connections.
Specifically, the other end of torsional damper 1 is connected by spline with power commutation input shaft S1.
Power shuttle gear-shifting unit 102 also includes：Reverse driving gear 2, forward gear driving gear 4, reverse idler gear 23, fall 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 on input shaft S1 by spline package in power；
Idler shaft S7 is arranged in casing, 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 axle S2；
Wet clutch 6 is fixed on power commutation output shaft S2；
In power commutation output shaft S2 axial direction, 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 the two of spline and wet clutch 6 respectively End connection；
Often engagement driving gear 8 is commutated on output shaft S2 by spline package in power, is often engaged driven gear 7 and is fixed in On main transmission input shaft S3；Often engagement driving gear 8 and normal engagement driven gear 7 keep the state that is connected by meshing transmission；
Reverse driving gear 2 is 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 idler shaft S7 by bearing；
Reverse gear driven gear 3 and drive shift driven gear 5 are rotatably sleeved on power commutation output by bearing On axle 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 the synchronizer 34 of device 56 and 34；
The tooth hub of one grade of driving gear, 9, two grades of synchronizers 34 of driving gear 11 and 34 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 axle S3, and be connected respectively with the combination gear rings of the both sides of three or four synchronizer 34 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 connected respectively with the combination gear rings of one or two grades of both sides of synchronizer 56 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 Distinguish engaged transmission between gear 13 and third gear driven gear 14 and fourth gear driving gear 15 and fourth gear driven gear 16 to connect Connect.
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 main transmission input shaft S3 successively；
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 in low-grade driving gear 19 on secondary transmission input shaft S5；
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 relative by bearing Rotationally it is 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 low-grade driving gear 19 or the side of middle-grade driving gear 21 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 on secondary speed change output shaft S6 by bearing；
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 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 Engage combination gear ring of the driving gear 18 either on the low-grade side of driven gear 20 be connected by meshing transmission or, high and low shift engagement The combination gear ring that set 36 and secondary speed change are often engaged on driving gear 18 and the side of low-grade driven gear 20 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 present invention has the advantages that：
The present invention is simple in construction, easy to use, and hair can be effectively buffered by setting main clutch part to be divided into torsional damper Motivation starts impact to transmission device below, can reduce the noise in engine starting process, reduce mill between gear Damage；Power shuttle gear-shifting unit realizes being switched fast for forward gear and reverse gear by wet clutch by oil pressure, can not cut The lower operating efficiency realized steady commutation, improve tractor under conditions of disconnected power, reduces the fatigue strength of driver, full The a variety of special operation requirements of foot.
Wherein, gear drive path is as follows when power shuttle gear-shifting unit is used to commutate：
Forward gear：By signal controller, wet clutch 6 is set to be combined with drive shift driven gear 5, drive line now 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 set to be combined with reverse gear driven gear 3, drive line now 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 combined with first speed driven gear 10, drive path now For 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 → secondary 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 Axle S4 → secondary speed change often engages driving gear 18 → secondary speed change and often engages driven gear 17 → secondary variable-speed unit.
Two grades：Gearshift is manipulated, one or two grades of synchronizers 56 is combined with two grades of driven gears 12, drive path now For 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 → secondary 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 → secondary speed change often engages driving gear 18 → secondary speed change and often engages driven gear 17 → secondary variable-speed unit.
Third gear：Gearshift is manipulated, three fourth gear synchronizers 34 is combined with third speed drive gear 13, drive path now For 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 → secondary 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 → secondary speed change often engages driving gear 18 → secondary speed change and often engages driven gear 17 → secondary variable-speed unit.
Fourth gear：Gearshift is manipulated, three fourth gear synchronizers 34 is combined with fourth gear driving gear 15, drive path now For 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 → secondary 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 → secondary speed change often engages driving gear 18 → secondary speed change and often engages driven gear 17 → secondary 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 combined with low-grade driven gear 20, drive line now For：Main variable-speed unit → secondary transmission input shaft S5 → low-grade driving gear 19 → 20 → high and low shift of low-grade driven gear engaging sleeve 36 → secondary speed change output shaft S6 → output.
Middle-grade：Gearshift is manipulated, middle-grade engaging sleeve 35 is combined with middle-grade driving gear 21, drive path now For：Main variable-speed unit → secondary transmission input shaft S5 → middle-grade 35 → middle-grade of engaging sleeve driving gear 21 → secondary speed change output shaft S6 → Output.
It is high-grade：Gearshift is manipulated, high and low shift engaging sleeve 36 is often engaged driving gear 18 with secondary speed change and is combined, now Drive path is：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：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme.

Claims (10)

  1. A kind of 1. 12+12 gear gearboxes, it is characterised in that including：Casing；
    Clutch unit, power shuttle gear-shifting unit, main variable-speed unit and secondary variable-speed unit are provided with the casing；
    The clutch unit, power shuttle gear-shifting unit, main variable-speed unit and secondary variable-speed unit are connected successively；
    The main clutch unit includes torsional damper, for being connected 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, for realizing the conversion of four gears；
    The secondary variable-speed unit is used for the conversion for realizing high, medium and low three gears.
  2. 2. 12+12 gear gearboxes according to claim 1, it is characterised in that power successively is provided with the casing 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 connected by the main transmission input shaft (S3) and the power shuttle gear-shifting unit；
    The secondary 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 secondary variable-speed unit is connected by main transformer speed output shaft (S4) and the main variable-speed unit.
  3. 3. 12+12 gear gearboxes according to claim 2, it is characterised in that in the clutch unit, the torsion Buffer (1) one end is connected with flywheel shell of engine, and the other end is connected with power commutation input shaft (S1).
  4. 4. 12+12 gear gearboxes according to claim 2, it is characterised in that the power shuttle gear-shifting unit also wraps Include：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 engage driving gear (8) and often engage 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 axle (S1)；
    The idler shaft (S7) is arranged in the casing, and the reverse idler gear (23) is rotatably arranged on the idle pulley On axle (S7)；
    The reverse gear driven gear (3) and the drive shift driven gear (5) (passing through bearing) are rotatably sleeved on institute State on power commutation output shaft (S2)；
    The wet clutch (6) is fixed on power commutation output shaft S2；
    In power commutation output shaft S2 axial direction, the reverse gear driven gear (3) and the drive shift driven gear (5) It is separately positioned on the both sides of the wet clutch (6)；And the reverse gear driven gear (3) and the drive shift driven gear (5) it is connected respectively by spline with the both ends of the wet clutch (6)；
    The often engagement driving gear (8) is commutated on output shaft S2 by spline package in the power, it is described often engage it is driven Gear (7) is fixed on the main transmission input shaft S3；The often engagement driving gear (8) and the often engagement driven gear (7) state that is connected by meshing transmission is kept；
    The reverse driving gear (2) is 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. 5. 12+12 gear gearboxes according to claim 4, it is characterised in that the reverse idler gear (23) passes through bearing Rotatably it is 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. 6. 12+12 gear gearboxes according to claim 2, it is characterised 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 by bearing respectively On the main transmission input shaft S3, and it is connected 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 connected respectively with the combination gear rings 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. 7. 12+12 gear gearboxes according to claim 6, it is characterised 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. 8. 12+12 gear gearboxes according to claim 2, it is characterised in that the secondary 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 secondary 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 secondary 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 described in spline package on secondary transmission input shaft (S5), the middle-grade driving gear (21) Rotatably it is 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 the 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 on the secondary speed change output shaft (S6) by bearing；
    The secondary 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 engaged 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, or, the high and low shift engaging sleeve (36) is often engaged actively with the secondary speed change Combination gear ring on gear (18) and the 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. 9. 12+12 gear gearboxes according to claim 3, it is characterised in that the other end of the torsional damper (1) It is connected by spline with power commutation input shaft (S1).
  10. 10. a kind of harvest machinery of the gearbox with described in claim any one of 1-9, it is characterised in that it includes starting Machine and central control mechanism；The bell housing of the engine is connected with the torsional damper (1) one end；The secondary variable-speed unit Secondary speed change output shaft (S6) be connected with the central control mechanism.
CN201711154512.3A 2017-11-20 2017-11-20 A kind of 12+12 gear gearboxes and its harvest machinery Pending CN107676434A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711154512.3A CN107676434A (en) 2017-11-20 2017-11-20 A kind of 12+12 gear gearboxes and its harvest machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711154512.3A CN107676434A (en) 2017-11-20 2017-11-20 A kind of 12+12 gear gearboxes and its harvest machinery

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5618124A (en) * 1979-05-11 1981-02-20 Ferodo Sa Torsion buffer of clutch friction for automobile
CN2849330Y (en) * 2005-10-21 2006-12-20 山东福田重工股份有限公司 12+12 gear position gearbox for tractor
WO2007077317A1 (en) * 2006-01-03 2007-07-12 Billet Rene Torsion damper for a clutch, particularly of a motor vehicle
CN101837729A (en) * 2010-05-19 2010-09-22 中国一拖集团有限公司 Tractor speed-changing box unit with synchronizer commutation
CN103939536A (en) * 2014-04-28 2014-07-23 常州联发凯迪机械有限公司 Multi-gear tractor transmission case
WO2016110650A1 (en) * 2015-01-07 2016-07-14 Valeo Embrayages Method for controlling a heat engine of a vehicle
CN205824087U (en) * 2016-07-29 2016-12-21 山东时风（集团）有限责任公司 A kind of gear box of tractor rear axle assy of novel transmission mode
CN207569153U (en) * 2017-11-20 2018-07-03 雷沃重工股份有限公司 A kind of 12+12 gear gearboxes

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5618124A (en) * 1979-05-11 1981-02-20 Ferodo Sa Torsion buffer of clutch friction for automobile
CN2849330Y (en) * 2005-10-21 2006-12-20 山东福田重工股份有限公司 12+12 gear position gearbox for tractor
WO2007077317A1 (en) * 2006-01-03 2007-07-12 Billet Rene Torsion damper for a clutch, particularly of a motor vehicle
CN101837729A (en) * 2010-05-19 2010-09-22 中国一拖集团有限公司 Tractor speed-changing box unit with synchronizer commutation
CN103939536A (en) * 2014-04-28 2014-07-23 常州联发凯迪机械有限公司 Multi-gear tractor transmission case
WO2016110650A1 (en) * 2015-01-07 2016-07-14 Valeo Embrayages Method for controlling a heat engine of a vehicle
CN205824087U (en) * 2016-07-29 2016-12-21 山东时风（集团）有限责任公司 A kind of gear box of tractor rear axle assy of novel transmission mode
CN207569153U (en) * 2017-11-20 2018-07-03 雷沃重工股份有限公司 A kind of 12+12 gear gearboxes

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