CN105402349A - Power output system and output method for agricultural machinery - Google Patents
Power output system and output method for agricultural machinery Download PDFInfo
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- CN105402349A CN105402349A CN201510876581.XA CN201510876581A CN105402349A CN 105402349 A CN105402349 A CN 105402349A CN 201510876581 A CN201510876581 A CN 201510876581A CN 105402349 A CN105402349 A CN 105402349A
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- power
- oil hydraulic
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- 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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Power Transmission Devices (AREA)
- Control Of Fluid Gearings (AREA)
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Abstract
The invention relates to a power output system and output method for agricultural machinery. The system comprises an engine, a power output mechanism and a walking system, wherein the engine outputs power to the walking system and a working system through the power output mechanism. A wet clutch is adopted, the control model can be mechanical clutch, hydraulic clutch and pneumatic clutch, and the operation is labor-saving. Hub reduction can adopt internal-meshing open gear transmission or external-meshing close gear transmission. A speed changing box is a two-gear box, so that the structure is simple and the operation is convenient. The power output method increases the input speed of a hydraulic pump, increases the power of a hydraulic system, increases the output speed of a hydraulic motor, reduces the working pressure of the hydraulic system, and reduces the cost of the system.
Description
Technical field
The present invention relates to agricultural mechanical field, specifically a kind of power output system for farm machinery and output intent.
Background technique
Farm machinery running gear required power is larger, especially big-and-middle-sized harvest machinery, car weight is larger, walking required power is comparatively large, and during with hydraulic system transfers power, the power ratio improving hydraulic system is more difficult, current farm machinery engine speed used is usually at 2200-2400r/min, then engine speed is limited, so adopt the method improving system working pressure to improve hydraulic system power, causes vibration hydraulic system mostly to be high pressure cost higher.And farm machinery Power output used is all first reduce engine speed at present, then distribute, cause the working pressure of vibration hydraulic system more and more higher; In addition, increase and the hydraulic system Driving Torque of hoofing part moment of torsion are closely bound up, the raising of hoofing part moment of torsion, normally obtain by improving hydraulic system Driving Torque at present, and improve hydraulic system Driving Torque by improve working pressure realize, this exacerbates the raising of hydraulic system working pressure, and the trend of oriented ultrahigh pressure development, causes system cost to increase considerably.
Summary of the invention
The object of the present invention is to provide a kind of power output system for farm machinery and output intent.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of power output system for farm machinery, this system comprises motor, power take-off mechanism and running gear, motor passes through power take-off mechanism outputting power to running gear and work system, power take-off mechanism comprises power input shaft, bevel gear, main clutch, running gear pto＝power take-off and work system pto＝power take-off, power take-off mechanism by main clutch outputting power to work system, pass through bevel gear drive outputting power to running gear simultaneously, main clutch, bevel gear drive is included among power take-off mechanism housing, work system pto＝power take-off, running gear pto＝power take-off is all exported by power take-off mechanism housing, and power input shaft is connected by main clutch with work system pto＝power take-off, work system pto＝power take-off and running gear pto＝power take-off are in plumbness, running gear is by hydrostatic pressure system, gearbox, break, wheel reductor and road wheel are formed, outputting power is passed to the oil hydraulic pump in hydrostatic pressure system by running gear pto＝power take-off, oil hydraulic pump output flow is to oil hydraulic motor, oil hydraulic motor output speed, torque is to gearbox, gearbox outputting power is to wheel reductor, wheel reductor ground-engaging wheel realizes walking,
Described bevel gear drive is in normal engagement, and velocity ratio is less than 1;
Described hydrostatic pressure system is variable displacement pump-fixed displacement motor closed type hydraulic system, and described oil hydraulic pump is shaft orientation plunger variable pump, and described oil hydraulic motor is axial piston motor;
Described oil hydraulic pump input speed is higher than engine speed, and oil hydraulic pump output power increases, and described oil hydraulic motor output speed, power increase;
Described gearbox is two grades, diaxon, three groups of constant-mesh gear-boxes, and with differential mechanism, gearshift mode adopts wet friction chip;
Described main clutch is wet friction slice clutch;
Described running gear pto＝power take-off and work system pto＝power take-off adopt duplex bearing to support;
Engine output shaft and power input shaft, running gear pto＝power take-off and oil hydraulic pump input shaft, hydraulic motor output shaft all adopt coupling to link with transmission input shaft;
As above for a power output method for farm machinery, motor exports by bevel gear drive, and outputting power is to running gear, and simultaneously by main clutch, outputting power is to work system; Engine speed passes through bevel gear drive, the oil hydraulic pump in hydrostatic pressure system is directly passed to by running gear pto＝power take-off, oil hydraulic pump output flow is to oil hydraulic motor, oil hydraulic motor output speed, torque are to gearbox, and gearbox improves the ratio down slow-speed of revolution, improve torque, outputting power is to wheel reductor, wheel reductor reduces rotating speed further, improves torque, and ground-engaging wheel realizes walking.
Beneficial effect of the present invention:
Power output system for farm machinery provided by the invention, adopt wet clutch, control mode can be mechanical clutch, hydraulic clutch, air clutch, handles laborsaving; Hub reduction can adopt internal messing open type gear driving or outer gearing closed-type gear transmission; Gearbox is two grades of casees, and structure is simple, easy to operate; Power output method for farm machinery provided by the invention, improves oil hydraulic pump input speed, improves hydraulic system power, improves oil hydraulic motor output speed simultaneously, reduces the working pressure of hydraulic system, reduces system cost.
Accompanying drawing explanation
Fig. 1 power output system schematic diagram of the present invention;
Reference character: 1, motor, 2, power input shaft, 3, running gear pto＝power take-off, 4, oil hydraulic pump, 5, oil hydraulic motor, 6, road wheel, 7, wheel reductor, 8, differential mechanism, 9, gearbox, 10, wet clutch, 11, break, 12, main clutch, 13, work system pto＝power take-off, 14, power take-off mechanism.
Embodiment
Below in conjunction with embodiment, the present invention is further elaborated.
As shown in the figure: a kind of power output system for farm machinery, this system comprises motor 1, power take-off mechanism 14 and running gear, motor 1 passes through power take-off mechanism 14 outputting power to running gear and work system, power take-off mechanism 14 comprises power input shaft 2, bevel gear, main clutch 12, running gear pto＝power take-off 3 and work system pto＝power take-off 13, power take-off mechanism 14 by main clutch 12 outputting power to work system, pass through bevel gear drive outputting power to running gear simultaneously, main clutch 12, bevel gear drive is included among power take-off mechanism 14 housing, work system pto＝power take-off 13, running gear pto＝power take-off 3 is all exported by power take-off mechanism 14 housing, and power input shaft 2 is connected by main clutch 12 with work system pto＝power take-off 13, work system pto＝power take-off 13 and running gear pto＝power take-off 3 are in plumbness, running gear is by hydrostatic pressure system, gearbox 9, break 11, wheel reductor 7 and road wheel 6 are formed, outputting power is passed to the oil hydraulic pump 4 in hydrostatic pressure system by running gear pto＝power take-off, oil hydraulic pump 4 output flow is to oil hydraulic motor 5, oil hydraulic motor 5 output speed, torque is to gearbox 9, gearbox 9 outputting power is to wheel reductor 7, wheel reductor 7 ground-engaging wheel 6 realizes walking,
As above for a power output method for farm machinery, motor exports by bevel gear drive, and outputting power is to running gear, and simultaneously by main clutch, outputting power is to work system; Engine speed passes through bevel gear drive, the oil hydraulic pump in hydrostatic pressure system is directly passed to by running gear pto＝power take-off, oil hydraulic pump output flow is to oil hydraulic motor, oil hydraulic motor output speed, torque are to gearbox, and gearbox improves the ratio down slow-speed of revolution, improve torque, outputting power is to wheel reductor, wheel reductor reduces rotating speed further, improves torque, and ground-engaging wheel realizes walking.
Motor 1 exports by bevel gear drive, outputting power in running gear, simultaneously by main clutch 12, outputting power in work system, such as threshing cylinder, vibrating sieve etc.; Described bevel gear drive velocity ratio is less than 1, be in normal engagement, for improving the rotating speed that motor 1 exports to running gear, engine speed passes through bevel gear drive, the oil hydraulic pump 4 in hydrostatic pressure system is directly passed to by running gear pto＝power take-off 3, oil hydraulic pump 4 output flow is to oil hydraulic motor 5, oil hydraulic motor 5 output speed, torque are to gearbox 9, gearbox 9 improves the ratio down slow-speed of revolution, improve torque, outputting power is to wheel reductor 7, and wheel reductor 7 reduces rotating speed further, improve torque, ground-engaging wheel 6 existing walk;
Described hydrostatic pressure system is variable displacement pump-fixed displacement motor closed type hydraulic system, described oil hydraulic pump 4 is shaft orientation plunger variable pump, described oil hydraulic motor 5 is axial piston motor, the discharge capacity changing shaft orientation plunger variable pump can realize stepless speed regulation of walking, and the outbound course changing shaft orientation plunger variable pump flow can realize advancing and reversing; Described oil hydraulic pump 4 input speed is higher than motor 1 rotating speed, and oil hydraulic pump 4 output power increases, and described oil hydraulic motor 5 output speed, power increase;
Described gearbox 9 is two grades, diaxon, three groups of constant-mesh gear-boxes, and with differential mechanism 8, gearshift mode adopts wet friction chip, velocity ratio is higher, is reduced by oil hydraulic motor 5 output speed, improves output torque, increase driving force, meet transition and work speed of travel demand;
Described main clutch 12 is wet friction slice clutch, be in normally open, when main clutch 12 is engaged by work system pto＝power take-off 13 outputting power to work system, described bevel gear drive is included among main clutch 12 housing, work system pto＝power take-off 13, running gear pto＝power take-off 3 are all exported by main clutch 12 housing, work system pto＝power take-off 13, running gear pto＝power take-off 3 are in plumbness, and power input shaft 2, running gear pto＝power take-off 3, work system pto＝power take-off 13 adopt duplex bearing to support; Engine output shaft and power input shaft, running gear pto＝power take-off and oil hydraulic pump input shaft, hydraulic motor output shaft all adopt coupling to link with transmission input shaft.
This method, by improving oil hydraulic pump input speed, improves hydraulic system power, reduces system working pressure, improve oil hydraulic motor output speed simultaneously, improve transmission ratio, obtain enough hoofing part moments of torsion, reduce further working pressure, improve systematic function, reduce costs.
Claims (9)
1. the power output system for farm machinery, it is characterized in that: this system comprises motor, power take-off mechanism and running gear, motor passes through power take-off mechanism outputting power to running gear and work system, power take-off mechanism comprises power input shaft, bevel gear, main clutch, running gear pto＝power take-off and work system pto＝power take-off, power take-off mechanism by main clutch outputting power to work system, pass through bevel gear drive outputting power to running gear simultaneously, main clutch, bevel gear drive is included among power take-off mechanism housing, work system pto＝power take-off, running gear pto＝power take-off is all exported by power take-off mechanism housing, and power input shaft is connected by main clutch with work system pto＝power take-off, work system pto＝power take-off and running gear pto＝power take-off are in plumbness, running gear is by hydrostatic pressure system, gearbox, break, wheel reductor and road wheel are formed, outputting power is passed to the oil hydraulic pump in hydrostatic pressure system by running gear pto＝power take-off, oil hydraulic pump output flow is to oil hydraulic motor, oil hydraulic motor output speed, torque is to gearbox, gearbox outputting power is to wheel reductor, wheel reductor ground-engaging wheel realizes walking.
2., as claimed in claim 1 for the power output system of farm machinery, it is characterized in that: described bevel gear drive is in normal engagement, and velocity ratio is less than 1.
3., as claimed in claim 1 for the power output system of farm machinery, it is characterized in that: described hydrostatic pressure system is variable displacement pump-fixed displacement motor closed type hydraulic system, and described oil hydraulic pump is shaft orientation plunger variable pump, and described oil hydraulic motor is axial piston motor.
4. as claimed in claim 1 for the power output system of farm machinery, it is characterized in that: described oil hydraulic pump input speed is higher than engine speed, and oil hydraulic pump output power increases, and described oil hydraulic motor output speed, power increase.
5. as claimed in claim 1 for the power output system of farm machinery, it is characterized in that: described gearbox is two grades, diaxon, three groups of constant-mesh gear-boxes, and with differential mechanism, gearshift mode adopts wet friction chip.
6., as claimed in claim 1 for the power output system of farm machinery, it is characterized in that: described main clutch is wet friction slice clutch.
7. as claimed in claim 1 for the power output system of farm machinery, it is characterized in that: described running gear pto＝power take-off and work system pto＝power take-off adopt duplex bearing to support.
8., as claimed in claim 1 for the power output system of farm machinery, it is characterized in that: engine output shaft and power input shaft, running gear pto＝power take-off and oil hydraulic pump input shaft, hydraulic motor output shaft all adopt coupling to link with transmission input shaft.
9. as claimed in claim 1 for a power output method for farm machinery, it is characterized in that: motor exports by bevel gear drive, and outputting power is to running gear, and simultaneously by main clutch, outputting power is to work system; Engine speed passes through bevel gear drive, the oil hydraulic pump in hydrostatic pressure system is directly passed to by running gear pto＝power take-off, oil hydraulic pump output flow is to oil hydraulic motor, oil hydraulic motor output speed, torque are to gearbox, and gearbox improves the ratio down slow-speed of revolution, improve torque, outputting power is to wheel reductor, wheel reductor reduces rotating speed further, improves torque, and ground-engaging wheel realizes walking.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510876581.XA CN105402349B (en) | 2015-12-03 | 2015-12-03 | A kind of power output system and output method for agricultural machinery |
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| CN201510876581.XA CN105402349B (en) | 2015-12-03 | 2015-12-03 | A kind of power output system and output method for agricultural machinery |
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| CN105402349A true CN105402349A (en) | 2016-03-16 |
| CN105402349B CN105402349B (en) | 2018-07-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402067A (en) * | 2016-11-21 | 2017-02-15 | 徐工消防安全装备有限公司 | Four-drive traveling control valve, open type hydraulic system equipped with same as well as traveling machine |
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| EP0174560B1 (en) * | 1984-09-12 | 1988-08-10 | Hydromatik GmbH | Propulsion device for machines and vehicles, especially for construction vehicles, e.g. a shovel loader |
| JPH0238745A (en) * | 1988-07-28 | 1990-02-08 | Komatsu Ltd | Mechanical/hydraulic type transmission gear and its control method |
| CN101786062A (en) * | 2009-12-23 | 2010-07-28 | 南京农业大学 | Power distribution device used for orchard sprayer |
| CN101811435A (en) * | 2010-04-14 | 2010-08-25 | 长安大学 | Composite transmission mechanism of hydraulic machinery of land scraper |
| CN104499521A (en) * | 2014-12-15 | 2015-04-08 | 湖南三一路面机械有限公司 | Land leveler and power transmission system thereof |
| CN104626977A (en) * | 2015-01-30 | 2015-05-20 | 山东常林农业装备股份有限公司 | Four-wheel drive hydraulic mechanical continuously variable speed transmission device with steering axle |
-
2015
- 2015-12-03 CN CN201510876581.XA patent/CN105402349B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0174560B1 (en) * | 1984-09-12 | 1988-08-10 | Hydromatik GmbH | Propulsion device for machines and vehicles, especially for construction vehicles, e.g. a shovel loader |
| JPH0238745A (en) * | 1988-07-28 | 1990-02-08 | Komatsu Ltd | Mechanical/hydraulic type transmission gear and its control method |
| CN101786062A (en) * | 2009-12-23 | 2010-07-28 | 南京农业大学 | Power distribution device used for orchard sprayer |
| CN101811435A (en) * | 2010-04-14 | 2010-08-25 | 长安大学 | Composite transmission mechanism of hydraulic machinery of land scraper |
| CN104499521A (en) * | 2014-12-15 | 2015-04-08 | 湖南三一路面机械有限公司 | Land leveler and power transmission system thereof |
| CN104626977A (en) * | 2015-01-30 | 2015-05-20 | 山东常林农业装备股份有限公司 | Four-wheel drive hydraulic mechanical continuously variable speed transmission device with steering axle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402067A (en) * | 2016-11-21 | 2017-02-15 | 徐工消防安全装备有限公司 | Four-drive traveling control valve, open type hydraulic system equipped with same as well as traveling machine |
| CN106402067B (en) * | 2016-11-21 | 2018-01-19 | 徐工消防安全装备有限公司 | A kind of 4 wheel driven travel control valve and its hydraulic open system, walking machine |
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| CN105402349B (en) | 2018-07-17 |
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