CN101816244A - Chassis of combine harvester - Google Patents
Chassis of combine harvester Download PDFInfo
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- CN101816244A CN101816244A CN200910096401A CN200910096401A CN101816244A CN 101816244 A CN101816244 A CN 101816244A CN 200910096401 A CN200910096401 A CN 200910096401A CN 200910096401 A CN200910096401 A CN 200910096401A CN 101816244 A CN101816244 A CN 101816244A
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- hydraulic
- chassis
- combine harvester
- pump
- hydraulic oil
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Abstract
The invention relates to a chassis of a combine harvester, which comprises hydraulic pumps, hydraulic motors and operating levers. The chassis is characterized in that: the hydraulic pumps, the hydraulic motors and the operating levers are two; each hydraulic pump is connected with one hydraulic motor through a hydraulic oil tube so as to form two independent driving systems; a flux and flow direction control valve for hydraulic oil is arranged on each hydraulic pump; each operating lever is connected with one flux and flow direction control valve so as to form two independent operating mechanisms; each driving system is used for driving a crawler belt positioned on a corresponding side of the combine harvester; and each operating mechanism is used for controlling the rotate speed and turning of the crawler belt positioned on the corresponding side of the combine harvester. The chassis has the characteristics of simple structure, convenient operation and capability of realizing stepless speed change and in-situ turning. The chassis can also be used as a chassis of other track-laying vehicles.
Description
Technical field
The present invention relates to a kind of chassis of combine harvester, relate in particular to a kind of chassis of combine harvester of full hydraulic drive.
Background technology
The combine of domestic production at present adopts gearbox transmission grain header running gear substantially, for example the patent No. is 87211382.2 Chinese patent, a kind of chassis of combine harvester is disclosed, its technical scheme is as follows: left and right sides semiaxis, front-wheel, the braking hub adopts the structure and the type of attachment of similar of automobile axle transmission, the gearbox both sides are rigidly connected with left and right sides semiaxis housing respectively, front-wheel is bearing on the semiaxis housing by bearing, and can with the semiaxis housing to rotating, the braking hub is fixed on the front-wheel, semiaxis outer end, the left and right sides and front-wheel end face are rigidly connected, axle shaft gear in the differential mechanism of inner and gearbox is connected a shoe type hydraulic braking in braking system adopts by spline.Prior art has satisfied user's demand substantially, but because the gearbox road clearance is little, the paddy field trafficability characteristic is poor; Often will turn during the combine operate as normal and fall back, it is more frequent to shift gears, and gearbox is out of order easily, and influence is normally used.Along with increase, the growth in the living standard of farmers' income, purchase the machine user performance and the comfort level of combine are had higher requirement.The patent No. is that 200620000787.7 Chinese patent discloses a kind of hydraulic-driven track combine running gear, it mainly comprises: hydraulic oil pump, proportional velocity regulating valve, petroleum pipeline, steering control valve, hydraulic motor and final transmission device, hydraulic oil pump is housed on the locomotive engine, fuel feed pump and oil return pipe are housed on the hydraulic oil container, and the other end of oil return pipe and proportional velocity regulating valve are to being connected.The other end of fuel feed pump and hydraulic oil pump are to being connected, by hydraulic oil pump hydraulic oil is supplied with proportional velocity regulating valve, a pair of petroleum pipeline also is housed on the proportional velocity regulating valve, the other end of petroleum pipeline by steering control valve and two hydraulic motors to being connected, by final transmission device power is passed to driving wheel again, so that it drives the walking of tracks of harvester.This design can bring enough driving forces for grain header, and it is lower than the track combine fault rate that contains clutch, gearbox, machinery driving efficiency is high.The principle that track combine is turned is the rotating speed difference that makes two crawler belts.Though this hydraulic-driven track combine running gear has two hydraulic motors, but two hydraulic motors are controlled by same electrodeless variable-speed control stick, can not rely on described electrodeless variable-speed control stick to come controlling party is by being connected steering arm control on the steering control valve to, its turning.
Summary of the invention
The purpose of this invention is to provide a kind of chassis of combine harvester, it has characteristics simple in structure, easy to operate, as can to realize infinitely variable speeds and pivot stud.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs: a kind of chassis of combine harvester, comprise running gear, hydraulic system and operating mechanism, described running gear comprises driving wheel, driven pulley and crawler belt, described hydraulic system comprises engine, hydraulic pump, hydraulic motor, hydraulic oil, hydraulic oil pipe and valve, and described operating mechanism comprises control stick; Described hydraulic pump will pass to described hydraulic motor from the energy of engine by described hydraulic oil and hydraulic oil pipe, the described driving wheel of fluid motor-driven, the described crawler belt of drive wheel is characterized in that: described hydraulic pump, hydraulic motor, control stick respectively have two; Each hydraulic pump connects a hydraulic motor by hydraulic oil pipe, constitutes an independently drive system; A flux and flow direction controller is all arranged on each hydraulic pump, and each control stick connects a flux and flow direction controller, constitutes an independently operating mechanism.
Each drive system is used to drive chassis of combine harvester to the crawler belt of answering a side, and each operating mechanism is used to control to the rotating speed of answering a side crawler belt and turns to.So can realize combine gait of march, the control of advancing and retreat and turning to.
As preferably, described hydraulic pump is a two-way variable displacement pump, and described two hydraulic pumps integrate, and constitute a duplex two-way variable displacement pump.Described two hydraulic pumps all have two paths, and hydraulic oil is subjected to control stick control can realize drag flow and anti-stream, and this meaning is two-way; The hydraulic fluid flow rate of hydraulic pump also can change under the control of control stick, and this calls variable.
As preferably, also have slippage pump on the described hydraulic pump, described slippage pump and described hydraulic pump, described hydraulic motor, described hydraulic oil pipe have constituted the hydraulic oil feed circuit of a closure.Hydraulic pump has the phenomenon of hydraulic fluid leak at work inevitably, and the circulation of hydraulic oil has not only been realized in the hydraulic oil closed-loop path, has also realized heat exchange, makes that the temperature of hydraulic oil can be controlled.
As preferably, the feed circuit of described hydraulic system is provided with cooling device.Cooling device further helps to control the temperature of hydraulic oil.
As further preferred, described cooling device is a blower fan.
As preferably, the described chassis of combine harvester road clearance is 300mm～500mm.
As further preferred, the described chassis of combine harvester road clearance is 310mm.
Owing to saved gearbox, clutch, make the chassis of combine harvester road clearance strengthen, improved the paddy field through performance of combine.
As preferably, described crawler belt is the base steel crawler belt, and skin is equipped with rubber layer.
In sum, the present invention has following beneficial effect:
1, owing to adopted double pump double motor hydraulic system, make the track drive independent of chassis of combine harvester both sides, can realize turning at any angle, or even pivot stud;
2, duplex two-way variable displacement pump double motor hydraulic system has been simplified the structure on chassis, also makes operation become more simple, and practicality is improved;
3, the utilization of slippage pump, feed circuit makes the leakage problem of hydraulic oil be resolved, and the temperature of hydraulic oil also is under control;
4, the increasing of road clearance has improved the paddy field through performance of combine.
Description of drawings
Fig. 1 is a chassis of the present invention layout;
Fig. 2 is a hydraulic scheme of the present invention.
In the above-mentioned accompanying drawing, the 1st, driving wheel, the 2nd, crawler belt, the 3rd, engine, the 4th, hydraulic pump, the 5th, hydraulic motor, the 6th, slippage pump, the 7th, filter, the 8th, blower fan, the 9th, flux and flow direction controller, the 10th, overflow valve, the 11st, two-position valve.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
This embodiment only is an explanation of the invention; it is not a limitation of the present invention; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subjected to the protection of Patent Law in claim scope of the present invention.
Embodiment one, as shown in Figure 1, a kind of chassis of combine harvester, comprise running gear, hydraulic system and operating mechanism, described running gear comprises and is in two driving wheels 1 of the chassis of combine harvester left and right sides, some driven pulleys and two crawler belts 2 respectively, described hydraulic system comprises a diesel engine 3, two hydraulic pumps 4, two hydraulic motors 5, hydraulic oil, hydraulic oil pipe and valves etc., and described operating mechanism comprises control stick and is installed on flux and flow direction controller 9 on the hydraulic pump 4; Described diesel engine 3 drives hydraulic pump 4, and therefore hydraulic oil pass to described hydraulic motor 5 by hydraulic oil pipe with energy, and hydraulic motor 5 drives described driving wheel 1, and driving wheel 1 drives described crawler belt 2.Described hydraulic pump 4, hydraulic motor 5 and control stick respectively have two; Each hydraulic pump 4 connects a hydraulic motor 5 by hydraulic oil pipe, constitutes an independently drive system; Each hydraulic pump 4 is all installed a flux and flow direction controller 9, and each control stick connects a flux and flow direction controller 9, constitutes an independently operating mechanism.Described flux and flow direction controller 9 is to be used for controlling the flow of hydraulic oil in the hydraulic pump 4 and the device of the flow direction, the part of described flux and flow direction controller 9 in hydraulic pump is a swash plate, described swash plate hydraulic pump 4 when vertical state cuts out, hydraulic pump 4 work during inclination, tilt then to mean the hydraulic motor forward or reverse to the left or to the right, the angular dimension that described swash plate tilts then means the size of the flow of hydraulic oil, also determining simultaneously the size of hydraulic motor 4 rotating speeds, the hydraulic motor that has flux and flow direction controller 9 is existing product.Described hydraulic pump 4 is a two-way variable displacement pump, and described two hydraulic pumps 4 integrate, and constitutes a duplex two-way variable displacement pump.Also have slippage pump 6 on the described hydraulic pump 4, slippage pump 6 and hydraulic pump 4, hydraulic motor 5, hydraulic oil pipe have constituted the hydraulic oil feed circuit of a closure, and the feed circuit of described hydraulic system is provided with blower fan 8; The described chassis of combine harvester road clearance is 310mm; Described crawler belt 2 is the base steel crawler belt, on the base steel of crawler belt 2 rubber layer is installed.
Embodiment two, only are that with embodiment one difference the described chassis of combine harvester road clearance is 300mm.
Embodiment three, only are that with embodiment one difference the described chassis of combine harvester road clearance is 500mm.
As shown in Figure 2, hydraulic system of the present invention, when the hydraulic system operate as normal, hydraulic pump 4 pumps into hydraulic oil pipe with hydraulic oil, arrive hydraulic motor 5 by hydraulic oil pipe, in hydraulic motor 5, finish merit after drain tap by hydraulic motor 5, arrive filter 7 places along oil pipe and carry out the hydraulic pressure oil filtration, hydraulic oil pipe by arrival blower fan 8 places, filter 7 back arrives slippage pump 6 again after cooling off; 6 pairs of hydraulic pumps of slippage pump 4 carry out repairing.
Working connection is meant that the hydraulic oil flow of direct connection hydraulic pump 4 and hydraulic motor 5 threads a pipe, when the hydraulic fluid pressure in the working connection is elevated to a certain degree, come out the overflow valve 10 of hydraulic oil on can another hydraulic oil path outside two working connections, get back to feed circuit.The structures shape of overflow valve 10 its effect be exactly to guarantee that working connection pressure is unlikely to higher, so all arrived feed circuit by the hydraulic oil of overflow valve 10.Under extreme case, such as, engine 3 is driving the running of hydraulic pump 4 always, but hydraulic motor 5 is never work but, this moment, hydraulic oil only may can't resolve the too high problem of working connection hydraulic fluid pressure by overflow this mode from overflow valve 10, hydraulic oil this hydraulic oil path that can continue outside two working connections comes out from two-position valve 11 so, returns feed circuit.
Though this is the hydraulic oil circulation of a working connection and feed circuit, the principle of the hydraulic oil circulation of other three working connections working connection therewith is consistent.In two working connections on the same hydraulic pump 4, wherein a work interval scale corresponding hydraulic motor is just changeed, and another work interval scale to the hydraulic motor counter-rotating of answering; Two working connections on the same hydraulic pump are subjected to the control of same flux and flow direction controller, and another must be to be in resting state in the time of therefore can accomplishing a working connection job.
When combine was worked, the driver controlled left and right two control sticks, when two control sticks are all pushed to preceding and displacement when consistent, and the combine straight ahead; When two control sticks all pull to back and displacement when consistent, the combine straight line falls back; When the displacement of the control stick on the left side before pushing to during greater than the control stick on the right, the crawler belt rotating speed on the combine left side is fast, and combine is turned right; Turn left in like manner.When a control stick forward and another control stick backward the time, two crawler belt switched in opposite just can realize turning by a relatively large margin; When a control stick to last control stick backward and displacement when satisfying certain proportion and concerning, can realize pivot stud.
Claims (10)
1. chassis of combine harvester, comprise running gear, hydraulic system and operating mechanism, described running gear comprises driving wheel, driven pulley and crawler belt, described hydraulic system comprises engine, hydraulic pump, hydraulic motor, hydraulic oil, hydraulic oil pipe and valve, and described operating mechanism comprises control stick; Described hydraulic pump will pass to described hydraulic motor from the energy of engine by hydraulic oil and hydraulic oil pipe, the described driving wheel of fluid motor-driven, the described crawler belt of drive wheel, it is characterized in that: described hydraulic pump, hydraulic motor, control stick respectively have two, each hydraulic pump connects a hydraulic motor by hydraulic oil pipe, constitutes an independently drive system; A flux and flow direction controller is all arranged on each hydraulic pump, and each control stick connects a described flux and flow direction controller, constitutes an independently control system.
2. a kind of chassis of combine harvester according to claim 1 is characterized in that: described hydraulic pump is a two-way variable displacement pump, and described two hydraulic pumps integrate, and constitutes a duplex two-way variable displacement pump.
3. a kind of chassis of combine harvester according to claim 1 and 2, it is characterized in that: also have slippage pump on the described hydraulic pump, described slippage pump and described hydraulic pump, described hydraulic motor and described hydraulic oil pipe have constituted the hydraulic oil feed circuit of a closure.
4. a kind of chassis of combine harvester according to claim 1 and 2 is characterized in that: the feed circuit of described hydraulic system is provided with cooling device.
5. a kind of chassis of combine harvester according to claim 4 is characterized in that: described cooling device is a blower fan.
6. a kind of chassis of combine harvester according to claim 1 and 2 is characterized in that: the described chassis of combine harvester road clearance is 300mm～500mm.
7. a kind of chassis of combine harvester according to claim 6 is characterized in that: the described chassis of combine harvester road clearance is 310mm.
8. a kind of chassis of combine harvester according to claim 1 and 2 is characterized in that: described engine is a diesel engine.
9. a kind of chassis of combine harvester according to claim 1 and 2 is characterized in that: described crawler belt is an iron and steel base crawler belt, on the iron and steel base of described crawler belt rubber layer is installed.
10. a kind of chassis of combine harvester according to claim 1 is characterized in that: described hydraulic pump is the duplex two-way variable displacement pump; Also have slippage pump on the described hydraulic pump, described slippage pump and described hydraulic pump, described hydraulic motor, described hydraulic oil pipe have constituted the hydraulic oil feed circuit of a closure; The feed circuit of described hydraulic system is provided with blower fan; The described chassis of combine harvester road clearance is 300mm～500mm; Described engine is a diesel engine; Described crawler belt is an iron and steel base crawler belt, on the iron and steel base of described crawler belt rubber layer is installed also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910096401A CN101816244A (en) | 2009-02-28 | 2009-02-28 | Chassis of combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910096401A CN101816244A (en) | 2009-02-28 | 2009-02-28 | Chassis of combine harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101816244A true CN101816244A (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910096401A Pending CN101816244A (en) | 2009-02-28 | 2009-02-28 | Chassis of combine harvester |
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| CN (1) | CN101816244A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941473A (en) * | 2010-09-14 | 2011-01-12 | 中国人民解放军军事医学科学院卫生装备研究所 | All terrain crawler type sanitary emergency ambulance |
| CN104956842A (en) * | 2015-06-26 | 2015-10-07 | 覃裕强 | Wheeled crawler type combined sugarcane harvester |
| CN105940868A (en) * | 2016-05-09 | 2016-09-21 | 湖州职业技术学院 | Longitudinal axis flow harvester chassis structure |
-
2009
- 2009-02-28 CN CN200910096401A patent/CN101816244A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941473A (en) * | 2010-09-14 | 2011-01-12 | 中国人民解放军军事医学科学院卫生装备研究所 | All terrain crawler type sanitary emergency ambulance |
| CN104956842A (en) * | 2015-06-26 | 2015-10-07 | 覃裕强 | Wheeled crawler type combined sugarcane harvester |
| CN105940868A (en) * | 2016-05-09 | 2016-09-21 | 湖州职业技术学院 | Longitudinal axis flow harvester chassis structure |
| CN105940868B (en) * | 2016-05-09 | 2019-04-12 | 湖州职业技术学院 | A kind of chassis structure of longitudinal axial flow harvester |
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Application publication date: 20100901 |