CN205256013U - Large -scale harvester keeps off four -wheel hydraulic stepless speed change transaxle assembly with two - Google Patents
Large -scale harvester keeps off four -wheel hydraulic stepless speed change transaxle assembly with two Download PDFInfo
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- CN205256013U CN205256013U CN201520886660.4U CN201520886660U CN205256013U CN 205256013 U CN205256013 U CN 205256013U CN 201520886660 U CN201520886660 U CN 201520886660U CN 205256013 U CN205256013 U CN 205256013U
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- speed change
- stepless speed
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Abstract
The utility model relates to a large -scale harvester keeps off four -wheel hydraulic stepless speed change transaxle assembly with two, including the drive ration hydraulic motor's that is located front axle hydraulic pressure variable pump, the constant displacement motor output shaft is connected with gearbox power input shaft, and gearbox power output shaft is through differential mechanism assembly and wheel reduction input shaft, the epaxial liquid braking device assembly that is equipped with of gearbox middle transmission, and its hydraulic motor 0, hydraulic pressure variable pump is prevented skidding the valve through front axle and is connected with quantitative hydraulic motor, and front axle prevents skidding the valve and is connected with the switch through the solenoid valve, hydraulic pressure variable pump still is connected with the cycloid motor of rear axle through the 4 wheel driven control valve. The operation controls is simple, reliable, timely, can realize the infinitely variable and reverse the traveling of two transaxle assemblies, make hydraulic system keep certain operating pressure to it walks to make the harvester rear wheel still can drive whole garage.
Description
Technical field
The utility model patent relates to large-scale self-propelled grain cbmbine harvester drive axle assembly technical field and and quietHydraulic technique field.
Background technology
In recent years, the large-scale self-propelled four-wheel drive grain combine market demand was vigorous. This type of large-scale self-propelled paddyThing united reaper supporting 1000 traditional series mechanical formula front driving axles and the machine of power output is provided by front driving axle alwaysTool rear-guard steeraxle. This mechanical type four-wheel drive axle assembly exists that fault rate is high, complicated operation, volume are large, quality weight, energy consumptionHigh deficiency, and this kind of mechanical four-wheel drive axle assembly can not adapt to the serious plot of ponding and other needs drive more by force energyThe situation of power, a kind of two novel gear four-wheel drive hydraulic stepless speed change drive axle assemblies of market in urgent need.
Utility model content
The utility model patent content relates generally to a kind of by hydrostatic pressure system, propons mechanical drive system, rear bridge drivenTwo gear four-wheel hydraulic-driven anti-slip transmission systems for the large-scale self-propelled grain cbmbine harvester of the composition such as steering, this realityProvide two gear four-wheel hydraulic stepless speed change drive axle assemblies for a kind of large-scale harvester with novel, comprise that to be positioned at the driving of propons fixedThe hydraulic variable displacement pump of amount hydraulic motor, fixed displacement motor output shaft is connected with gearbox power input shaft, speed changing box power output shaftBe connected with hub reduction gear power shaft through differential assembly, on gearbox intermediate propeller shaft, be equipped with liquid braking device assembly, instituteState hydraulic variable displacement pump and be connected with constant displacement hydraulic motor through propons anti-slip valve, propons anti-slip valve is connected with switch through magnetic valve,Described hydraulic variable displacement pump is also connected with the gerotor motor of back axle through 4 wheel driven control valve.
Described 4 wheel driven control valve is in parallel with constant displacement hydraulic motor by high-pressure oil pipe.
The gerotor motor of back axle is connected with rear axle wheel reductor reducer output shaft.
The gerotor motor of back axle is divided into left back bridge gerotor motor and right back bridge gerotor motor.
Back axle gerotor motor is in parallel by pressure duct with 4 wheel driven control valve.
Described 4 wheel driven control valve is also connected with switch.
Described driving assembly is connected with running brake through electronic control module.
Described drive axle assembly also comprises the joystick that carries out hydraulic continuously variable transmission assembly Variable Control, and gearbox alsoBe provided with gearshift and control the gearshift joystick of handling, the gearshift engaging sleeve that gearbox arranges is connected with gearshift joystick, byGearshift joystick manipulation gearshift engaging sleeve is realized the conversion of gear.
The gear of described gearshift joystick is set to harvesting gear and two gears of walking gear, in the middle of two gears, is vacantGear, the shift control district of described Variable Control handle is set to advance, and electrodeless variable-speed keeps off and the electrodeless variable-speed that falls back keeps off, Variable ControlThe middle position of handle is neutral.
The gerotor motor of back axle is connected with the hub reduction gear of back axle respectively by shaft coupling, after primary speed-down with trailing wheelPower shaft connects, and back axle is also connected with steering cylinder, and steering cylinder is connected with track rod through rear axle wheel reductor decelerator.
Beneficial effect:
The utility model, by change-over switch, is controlled magnetic valve and whether is switched to 4 wheel driven state, thereby determines back axle cycloidWhether motor is incorporated to hydraulic system, and it is simple, reliable, timely that operation is controlled; By changing variable hydraulic variable flow pump delivery and liquidForce feed outbound course, can realize infinitely variable speeds and the reverse driving of two drive axle assemblies; In the time of propons tyre slip, connectAnti-slip valve, makes hydraulic system keep certain operating pressure, thereby makes rear wheel for harvester still can drive car load walking.
Brief description of the drawings
Fig. 1 is two gear four-wheel hydraulic-driven anti-slip transmission system schematic diagrams;
Fig. 2 is hydraulic schematic diagram;
Fig. 3 is gear and the infinitely variable speeds control principle drawing of drive axle assembly;
In figure:
1-hub reduction gear driving shaft, 2-differential mechanism semiaxis, the 3-engaging sleeve of shifting gears, 4-jackshaft, 5-power shaft, 6-back axleHub reduction gear output shaft, 7-running brake assembly, 8-propons differential is always grown up to be a useful person, 9-propons fixed displacement motor, 10-variable pump,The left back bridge gerotor motor of 11-, the right back bridge gerotor motor of 12-, the left back bridge hub reduction gear of 13-, the right back bridge hub reduction gear of 14-,15-rear-axle steering oil cylinder, 16--steering linkage, 17-gathers in gear, 18-transition gear, the 19-electrodeless variable-speed district that advances, 20-retreats nothingLevel speed-change area, 21-neutral.
Detailed description of the invention
The utility model patent mainly provides power input by hydraulic variable displacement pump 10, drives hydraulic pressure fixed displacement motor 9 speed changes to revolveTurn, carry out transition gear 18 and 17 two gears of harvesting gear of front axle assy by the gearshift engaging sleeve 3 of mechanical gear box and select, fromAnd front driving axle assembly drives harvester to realize to advance, retreat and turn to and the action such as infinitely variable speeds. Harvester needs rear driveWhen steeraxle and propons parallel drive, open change-over switch, control magnetic valve and be switched to 4 wheel driven state, thereby make left back bridge cycloidMotor 11 and right back bridge gerotor motor 12 are incorporated to hydraulic system. In the time that harvester does not need four-wheel drive, can open by switchingThe concern axle driving system of having no progeny, back axle gerotor motor 11 and 12 is in servo-actuated rotary state. Self-propelled large-scale grain combineSupporting this kind of drive axle assembly of machine can complete various walking operations.
The utility model patent is achieved through the following technical solutions (with reference to hydraulic ransaxle transmission principle Fig. 2):
Hydraulic-driven axle assembly is by the motor driven hydraulic variable displacement pump 10 of large-scale corn mowing machine, and process fluid pressure line willHigh pressure liquid force feed is delivered to constant displacement hydraulic motor 9 and back axle gerotor motor 10 and 11. Constant displacement hydraulic motor 9 is by shaft coupling and machineTool transmission assembly power shaft 5 connects. Mechanical gearbox can by Artificial Control shift gears engaging sleeve 3 realize harvesting gear 17,Transition keeps off the conversion of 2 gears such as 18 grades, realizes mechanical speed change. Then power output is passed through jackshaft 4 through propons differential assembly 8Reach hub reduction gear driving shaft 1 with running brake assembly 7 through differential mechanism semiaxis 2, drive harvester front-wheel to rotate. When nibblingTrap 3 is in the time of room, and front driving axle assembly does not have power output. When back axle gerotor motor 11 and 12 automatically controlled while being incorporated to system,Gerotor motor 11 is connected with rear axle wheel reductor decelerator 13 and right back bridge hub reduction gear 14 respectively by shaft coupling with 12, through oneLevel drives rear wheel for harvester to rotate through rear axle wheel reductor reducer output shaft 6 after slowing down. In the time that rear-axle steering oil cylinder 15 moves, back axleTire, by track rod 16 connection of rotatings, is realized harvester and is turned to. By changing discharge capacity and the liquid of variable hydraulic variable displacement pump 10Force feed outbound course, can realize infinitely variable speeds and the reverse driving of two drive axle assemblies.
In the time of propons tyre slip, connect anti-slip valve, make hydraulic system keep certain operating pressure, thereby make harvestingMachine trailing wheel still can drive car load walking.
Form hydrostatic system by volume adjustable hydraulic pump and propons constant displacement hydraulic motor, back axle gerotor motor, fuel tank, oil are loose etc.System, its hydraulic principle as shown in Figure 2. Be fixed in harvester frame loose to hydraulic pump, fuel tank, oil etc., hydraulic pump power shaft 5 withEngine output shaft connects with belt and belt pulley, by Engine driven Hydraulic Pump High Rotation Speed, and output high pressure liquid force feed.
The front axle beam of large-scale corn mowing machine will be fixed on after the assemblings such as hydraulic motor, mechanical gear box and hub reduction gearUpper, constant displacement hydraulic motor is first connected with propons anti-slip valve, then with harvester on volume adjustable hydraulic pump connect by pressure ductConnect.
4 wheel driven control valve is in parallel with propons fixed displacement motor 9 by high-pressure oil pipe.
Back axle gerotor motor is connected to back axle gerotor motor 11 with large-scale corn mowing machine frame with after rear axle assy assemblingWith 12 with 4 wheel driven control valve by pressure duct in parallel.
Shift control apparatus, hydraulic variable displacement pump 10 regulation devices, quiet of drive axle assembly are set in driving cab of harvesterHydraulic system and water brake mutual-locking electric-controlled device and 4 wheel driven switch and propons anti-slip switching device.
Hydraulic variable displacement pump 10 joysticks and gearshift joystick (in fact both share a handle) are placed on vacantState, as shown in Figure 3.
Pilot engine, hydraulic variable displacement pump 10 High Rotation Speeds. Select drive axle gear according to job requirements, refer to Fig. 3.
A, in the time that joystick is mobile to left side shown in Fig. 3, drive axle is chosen as harvesting gear 17, now, changes and controls handThe position of handle, enter and advance infinitely variable speeds district 19 and retreat infinitely variable speeds district 20, can realize former and later two directions of harvesterTravel and infinitely variable speeds, in the time that joystick is placed in the middle, be positioned at neutral 21, harvester stop motion.
B, in the time that joystick moves to right side shown in Fig. 3, drive axle is chosen as transition gear 18, now, harvester can onlyForwards motion. The position that changes joystick, harvester is realized infinitely variable speeds. When joystick is during in vacant state, receiveCutting mill stop motion. For the sake of security, harvester, in the time of 18 walking of transition gear, moves after joystick by locked, forbids harvestingMachine retreats and travels.
Safety when ensureing service brake, hydraulic driving brake system and hydrostatic pressure system are carried out electric controlled interlocking. ToolBody embodiment refers to Fig. 1.
In the time that hydraulic brake system is worked, the pressure signal that system produces feeds back to electronic control module simultaneously, and electronic control module is knownAfter other pressure signal, convert the signal of telecommunication to, control the electromagnetic valve work of hydraulic variable displacement pump 10, change the output of hydraulic variable displacement pump 10Discharge capacity, ensures service brake safety, effective. In the time that propons driving force is not enough, can opens 4 wheel driven switch back axle is driven simultaneously. ToolBody embodiment refers to Fig. 1.
4 wheel driven switch opens, by controlling 4 wheel driven control valve, makes two gerotor motors of back axle be incorporated to hydraulic system, after turnProduce power output to bridge, drive back axle tyre rotation, harvester is realized four-wheel drive.
Harvester propons skids when preventing that road surface is muddy, and system pressure cannot be set up, and the utility model patent is installedThere is propons anti-slip control valve. Detailed description of the invention refers to Fig. 1.
In the time of propons tyre slip, gauge tap that can manual unlocking propons anti-slip valve, propons loop produces damping, afterBridge pressure raises, and ensures that back axle tire still can drive harvester walking.
Claims (10)
1. two gear four-wheel hydraulic stepless speed change drive axle assemblies for large-scale harvester, comprise the driving quantitative hydraulic horse that is positioned at proponsThe hydraulic variable displacement pump reaching, constant displacement hydraulic motor output shaft is connected with gearbox power input shaft, and speed changing box power output shaft is through poorSpeed device assembly is connected with hub reduction gear power shaft, is equipped with liquid braking device assembly, its feature on gearbox intermediate propeller shaftBe, described hydraulic variable displacement pump is connected with constant displacement hydraulic motor through propons anti-slip valve, and propons anti-slip valve connects through magnetic valveHave switch, described hydraulic variable displacement pump is also connected with the gerotor motor of back axle through 4 wheel driven control valve.
2. two gear four-wheel hydraulic stepless speed change drive axle assemblies for large-scale harvester as claimed in claim 1, is characterized in that,Described 4 wheel driven control valve is in parallel with constant displacement hydraulic motor by high-pressure oil pipe.
3. two gear four-wheel hydraulic stepless speed change drive axle assemblies for large-scale harvester as claimed in claim 1, is characterized in that,The gerotor motor of back axle is connected with rear axle wheel reductor reducer output shaft.
4. two gear four-wheel hydraulic stepless speed change drive axle assemblies for large-scale harvester as claimed in claim 1, is characterized in that,The gerotor motor of back axle is divided into left back bridge gerotor motor and right back bridge gerotor motor.
5. two gear four-wheel hydraulic stepless speed change drive axle assemblies for large-scale harvester as claimed in claim 1, is characterized in that,The gerotor motor of back axle is in parallel by pressure duct with 4 wheel driven control valve.
6. two gear four-wheel hydraulic stepless speed change drive axle assemblies for large-scale harvester as claimed in claim 1, is characterized in that,Described 4 wheel driven control valve is also connected with switch.
7. two gear four-wheel hydraulic stepless speed change drive axle assemblies for large-scale harvester as claimed in claim 1, is characterized in that,Described drive axle assembly is connected with running brake through electronic control module.
8. two gear four-wheel hydraulic stepless speed change drive axle assemblies for large-scale harvester as claimed in claim 1, is characterized in that,Described drive axle assembly also comprises the joystick that carries out hydraulic continuously variable transmission assembly Variable Control, and gearbox is also provided with and changesGear is controlled the gearshift joystick of handling, and the gearshift engaging sleeve that gearbox arranges is connected with gearshift joystick, is controlled by gearshiftStick control gearshift engaging sleeve is realized the conversion of gear.
9. two gear four-wheel hydraulic stepless speed change drive axle assemblies for large-scale harvester as claimed in claim 8, is characterized in that,The gear of described gearshift joystick is set to harvesting gear and two gears of walking gear, in the middle of two gears, is vacant gear, described inThe shift control district of Variable Control handle is set to advance, and electrodeless variable-speed keeps off and the electrodeless variable-speed that falls back keeps off, the residence of Variable Control handleMeta is set to neutral.
10. two gear four-wheel hydraulic stepless speed change drive axle assemblies for large-scale harvester as claimed in claim 1, its feature existsIn, the gerotor motor of back axle is connected with the hub reduction gear of back axle respectively by shaft coupling, after primary speed-down, inputs with trailing wheelAxle connects, and back axle is also connected with steering cylinder, and steering cylinder is connected with track rod through rear axle wheel reductor decelerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520886660.4U CN205256013U (en) | 2015-11-10 | 2015-11-10 | Large -scale harvester keeps off four -wheel hydraulic stepless speed change transaxle assembly with two |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520886660.4U CN205256013U (en) | 2015-11-10 | 2015-11-10 | Large -scale harvester keeps off four -wheel hydraulic stepless speed change transaxle assembly with two |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205256013U true CN205256013U (en) | 2016-05-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520886660.4U Active CN205256013U (en) | 2015-11-10 | 2015-11-10 | Large -scale harvester keeps off four -wheel hydraulic stepless speed change transaxle assembly with two |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205256013U (en) |
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2015
- 2015-11-10 CN CN201520886660.4U patent/CN205256013U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Keruite Industrial Park, No. 496, Maoshan Road, Huangdao District, Qingdao, Shandong 266000 Patentee after: Qingdao Keruite Transmission Technology Co.,Ltd. Address before: No. 588, Yanshan Road, Qingdao Economic and Technological Development Zone, Qingdao, Shandong 266500 Patentee before: QINGDAO CREAT LASER EQUIPMENT CO.,LTD. |
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| CP03 | Change of name, title or address |