CN202958216U - Corn combine harvester - Google Patents
Corn combine harvester Download PDFInfo
- Publication number
- CN202958216U CN202958216U CN 201220691874 CN201220691874U CN202958216U CN 202958216 U CN202958216 U CN 202958216U CN 201220691874 CN201220691874 CN 201220691874 CN 201220691874 U CN201220691874 U CN 201220691874U CN 202958216 U CN202958216 U CN 202958216U
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- oil
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- hydraulic motor
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Abstract
The utility model discloses a corn combine harvester. The corn combine harvester comprises an engine, a straw returning machine, and a hydraulic system arranged between the engine and the straw returning machine. The hydraulic system comprises a hydraulic pump, a bi-direction hydraulic motor and an oil tank. A power output shaft of the bi-direction hydraulic motor is connected with a power input shaft of the straw returning machine in a transmission mode. A three-position and four-way reversing valve is arranged between the hydraulic pump and the bi-direction hydraulic motor, and provided with an oil inlet, an oil returning port, a first working port and a second working port. The oil inlet is communicated with the hydraulic pump, and the oil returning port is communicated with the oil tank, the first working port and the second working port are respectively communicated with an oil inlet and an oil outlet of the bi-direction hydraulic motor through a first pipeline and a second pipeline. The three-position and four-way reversing valve has two reversing positions and a middle position, wherein two working ports of the two reversing positions are communicated with the oil inlet and the oil returning port in a direct mode or in a cross mode, the oil inlet of the middle position is closed, and the two working ports are both communicated with the oil returning port. By adopting the hydraulic system, transmission of the engine and the straw returning machine is achieved, and power consumption of the engine is reduced effectively.
Description
Technical field
The utility model relates to a kind of corn combine.
Background technology
Chinese utility model patent open file CN201153396Y discloses a kind of self-propelled corn combine harvester, and this reaping machine is comprised of running gear, corn picking platform, front cluster conveying device, assorted clearly device, air intake device, corn husker, kernel recovery device, fruit cluster throwing device, the discharge mechanism of advancing, fruit-ear box and straw cutting apparatus.Wherein, straw cutting apparatus is articulated in the fuselage below of reaping machine, and the power input shaft of straw cutting apparatus is in transmission connection by the engine of Multistage belt drive variable mechanism and combined harvester.This type of belt drive has the large shortcoming of intermediate consumption, and the power of engine output has greatly because driving belt and belt pulley skid and is wasted, and the engine power availability is low.And the band swelling device in Multistage belt drive variable mechanism can cause straw cutting apparatus to produce in the course of the work vibrations, and this vibrations meeting causes larger harm to each parts such as shell, rotating shaft and bearing of straw cutting apparatus, affects the service life of straw cutting apparatus.
The utility model content
The purpose of this utility model is to provide a kind of corn combine, and mechanism causes the larger technical problem of engine power loss with solution available technology adopting Multistage belt drive variable.
for achieving the above object, the technical scheme of corn combine provided by the utility model is: corn combine, comprise engine, straw cutting apparatus and be arranged in being used for the transmission of power of the engine transmission system transmission system to the power input shaft of straw cutting apparatus between the two, this transmission system is hydraulic system, hydraulic system comprises the hydraulic pump by driven by engine work, two-way hydraulic motor and fuel tank with oil-in and oil-out, the power take-off of two-way hydraulic motor and the power input shaft of straw cutting apparatus are in transmission connection, be furnished with three position four-way directional control valve between hydraulic pump and two-way hydraulic motor, three position four-way directional control valve has oil-in, oil return opening and first, the second working hole, oil-in is communicated with hydraulic pump, oil return opening is communicated with fuel tank, first, the second working hole is respectively by first, the second pipeline is communicated with oil-in and the oil-out of two-way hydraulic motor, three position four-way directional control valve has two working holes and oil-in, oil return opening is straight-through or intersect two commutation positions and the oil-in that is communicated with and close, and the meta that two working holes all are communicated with oil return opening.
Described hydraulic system comprises that also correspondence is arranged in two balanced valves that being used on the first pipeline and the second pipeline prevents the mutual joint control of two-way hydraulic motor overspeed rotation.
Described hydraulic system also comprises the shuttle valve that is arranged between the first pipeline and the second pipeline, shuttle valve has two end oil-ins and a middle part oil-out, the both ends oil-in is corresponding and the first pipeline and the second pipeline connection respectively, and the middle part oil-out is communicated with fuel tank by the pipeline that is serially connected with overflow valve.
Described two-way hydraulic motor is fixedly mounted on straw cutting apparatus, and the power take-off of two-way hydraulic motor is connected with the power input shaft coaxial transmission of straw cutting apparatus.
The beneficial effects of the utility model are: the transmission system that is arranged between engine and straw cutting apparatus on corn combine provided by the utility model is hydraulic system, hydraulic pump in hydraulic system is by driven by engine work, hydraulic pump drives two-way hydraulic motor by pipeline and three position four-way directional control valve and rotates, two-way hydraulic motor drives straw cutting apparatus work, by switching the station of three position four-way directional control valve, realize that hydraulic motor is in different turning to.Adopt hydraulic system to realize the transmission of engine and straw cutting apparatus, simplified the transmission mechanism of straw cutting apparatus, structure is compacter, not only easy to install, and effectively reduce the loss of engine power, its stable drive is efficient, has reduced the vibrations of straw cutting apparatus, has improved the dependability of straw cutting apparatus.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of corn combine provided by the utility model;
Fig. 2 drives the hydraulic system principle figure of hydraulic motor action in Fig. 1.
Embodiment
as Fig. 1, shown in Figure 2, a kind of embodiment of corn combine, corn combine in this embodiment comprises motorized fuselage 1, be provided with straw cutting apparatus 2 on fuselage 1, this straw cutting apparatus 2 has power input shaft, be furnished with the hydraulic system as transmission system between the power input shaft of engine 1 and straw cutting apparatus 2, this hydraulic system comprises hydraulic pump 11, hydraulic motor 16 and fuel tank, hydraulic pump 11 is by driven by engine work, the inlet port of hydraulic pump 11 is communicated with fuel tank 10, the power input shaft of the power take-off of hydraulic motor 16 and straw cutting apparatus 2 is in transmission connection, hydraulic motor 16 is by hydraulic braking cylinder 15 brakings, hydraulic motor 16 has oil-in, oil-out and oil return opening, hydraulic motor 16 is the two-way hydraulic motor that oil-in and oil-out can exchange herein, the oil return opening of hydraulic motor is communicated with fuel tank.be furnished with three position four-way directional control valve 12 between hydraulic pump 11 and hydraulic motor 16, three position four-way directional control valve 12 has oil inlet P, oil return inlet T and working hole A and working hole B, working hole A is the first working hole, working hole B is the second working hole, oil inlet P is communicated with the force feed mouth of hydraulic pump 11, oil return inlet T is communicated with fuel tank, two working hole A and B are communicated with oil-in and the oil-out of hydraulic motor respectively by pipeline, three position four-way directional control valve has two working hole A and B and oil inlet P, left commutation position and two working hole A and B and oil inlet P that oil return inlet T is straight-through, right commutation position and oil inlet P that the oil return inlet T intersection is communicated with are closed, and the meta that two working hole A and B all are communicated with oil return inlet T.Pipeline between the working hole A of connection three position four-way directional control valve 12 herein and the oil-in of hydraulic motor 16 is the first pipeline 17, pipeline between the working hole B of connection three position four-way directional control valve 12 and the oil-out of hydraulic motor 16 is the second pipeline 14, corresponding two balanced valves 18 that are furnished be used to the mutual joint control that prevents the two-way hydraulic motor overspeed rotation on the first pipeline 17 and the second pipeline 14, each balanced valve forms by a sequence valve and a check valve.Hydraulic system herein also comprises the shuttle valve 19 that is arranged between the first pipeline 17 and the second pipeline 14, shuttle valve 19 has two end oil-ins and a middle part oil-out, the both ends oil-in of shuttle valve 19 is corresponding respectively to be communicated with the first pipeline 17 and the second pipeline 14, and the middle part oil-out is communicated with fuel tank by overflow valve 13.
In the present embodiment, hydraulic motor 16 is fixedly mounted on straw cutting apparatus 2, and the power take-off of hydraulic motor 16 is connected with the power input shaft coaxial transmission of straw cutting apparatus 2.
during work, driven by engine hydraulic pump 11 rotates, hydraulic pump 11 sucks low pressure oil and hydraulic oil is transferred to oil circuit from the force feed mouth of hydraulic pump from fuel tank 10, three position four-way directional control valve 12 is switched to left commutation position, at this moment, the oil inlet P of three position four-way directional control valve is communicated with working hole A, working hole B is communicated with oil return inlet T, hydraulic oil is through the oil inlet P of three position four-way directional control valve 12, working hole A, the first pipeline 17, the oil-in of hydraulic motor 16 enters and drives hydraulic motor work in hydraulic motor, hydraulic oil is converted into low pressure oil after driving hydraulic motor rotation acting, low pressure oil is discharged from the oil-out of hydraulic motor 16, through the second pipeline 14, working hole B and the oil return inlet T of three position four-way directional control valve 12 are returned to fuel tank, hydraulic motor 16 rotations, drive straw cutting apparatus 2 work.when 2 reverse rotation of needs straw cutting apparatus, three position four-way directional control valve 12 is switched to right commutation position, at this moment, the oil inlet P of three position four-way directional control valve 12 is communicated with working hole B, working hole A is communicated with oil return inlet T, at this moment, when the hydraulic oil of the hydraulic pump 11 output oil inlet P through three position four-way directional control valve, working hole B and the second pipeline, the oil-out of hydraulic motor 16 enters and drives hydraulic motor work in hydraulic motor, hydraulic oil is converted into low pressure oil after driving hydraulic motor rotation acting, low pressure oil is discharged from the oil-in of hydraulic motor, through the first pipeline, working hole A and the oil return inlet T of three position four-way directional control valve are returned to fuel tank, the hydraulic motor reverse rotation.And when three position four-way directional control valve 12 was in meta, the oil inlet P of three position four-way directional control valve was closed, and working hole A and B all are communicated with oil return inlet T, and hydraulic motor 12 is in suspended state like this, so that straw cutting apparatus 2 is rotated adjustment.
In above-described embodiment, adopt balancing valve structure commonly used in the Hydraulic Field on the first pipeline 17 and the second pipeline 14, the problem of the overspeed rotation that causes because of external cause, the stability and the safety that improve hydraulic system have occurred to prevent hydraulic motor.In other embodiments, also balancing valve structure can be set.
In above-described embodiment, the shuttle valve 19 of commonly using be provided with Hydraulic Field between the first pipeline 17 and the second pipeline 14 in, when the hydraulic oil pressure in the first pipeline or the second pipeline is excessive, end oil-in on shuttle valve and middle part oil-out conducting, hydraulic oil flows back to fuel tank through overflow valve, to guarantee the safety of hydraulic system.In other embodiments, also shuttle valve can be set.
Claims (4)
1. corn combine, comprise engine, straw cutting apparatus and be arranged in being used for the transmission of power of the engine transmission system to the power input shaft of straw cutting apparatus between the two, it is characterized in that: this transmission system is hydraulic system, hydraulic system comprises the hydraulic pump by driven by engine work, two-way hydraulic motor and fuel tank with oil-in and oil-out, the power take-off of two-way hydraulic motor and the power input shaft of straw cutting apparatus are in transmission connection, be furnished with three position four-way directional control valve between hydraulic pump and two-way hydraulic motor, three position four-way directional control valve has oil-in, oil return opening and first, the second working hole, oil-in is communicated with hydraulic pump, oil return opening is communicated with fuel tank, first, the second working hole is respectively by first, the second pipeline is communicated with oil-in and the oil-out of two-way hydraulic motor, three position four-way directional control valve has two working holes and oil-in, oil return opening is straight-through or intersect two commutation positions and the oil-in that is communicated with and close, and the meta that two working holes all are communicated with oil return opening.
2. corn combine according to claim 1 is characterized in that: described hydraulic system comprises that also correspondence is arranged in two balanced valves that being used on the first pipeline and the second pipeline prevents the mutual joint control of two-way hydraulic motor overspeed rotation.
3. corn combine according to claim 1 and 2, it is characterized in that: described hydraulic system also comprises the shuttle valve that is arranged between the first pipeline and the second pipeline, shuttle valve has two end oil-ins and a middle part oil-out, the both ends oil-in is corresponding and the first pipeline and the second pipeline connection respectively, and the middle part oil-out is communicated with fuel tank by the pipeline that is serially connected with overflow valve.
4. corn combine according to claim 3, it is characterized in that: described two-way hydraulic motor is fixedly mounted on straw cutting apparatus, and the power take-off of two-way hydraulic motor is connected with the power input shaft coaxial transmission of straw cutting apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691874 CN202958216U (en) | 2012-12-14 | 2012-12-14 | Corn combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691874 CN202958216U (en) | 2012-12-14 | 2012-12-14 | Corn combine harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202958216U true CN202958216U (en) | 2013-06-05 |
Family
ID=48499378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220691874 Expired - Fee Related CN202958216U (en) | 2012-12-14 | 2012-12-14 | Corn combine harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202958216U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489751A (en) * | 2017-08-22 | 2017-12-19 | 湘潭大学 | A kind of fluid torque-converter dynamic impact control device and control method |
| CN109677842A (en) * | 2019-01-12 | 2019-04-26 | 上海波赫驱动系统有限公司 | A kind of drag conveyor double handle control valve |
-
2012
- 2012-12-14 CN CN 201220691874 patent/CN202958216U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489751A (en) * | 2017-08-22 | 2017-12-19 | 湘潭大学 | A kind of fluid torque-converter dynamic impact control device and control method |
| CN107489751B (en) * | 2017-08-22 | 2019-08-06 | 湘潭大学 | A kind of fluid torque-converter dynamic impact control device and control method |
| CN109677842A (en) * | 2019-01-12 | 2019-04-26 | 上海波赫驱动系统有限公司 | A kind of drag conveyor double handle control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131214 |