CN215980189U - Header lift hydraulic system - Google Patents
Header lift hydraulic system Download PDFInfo
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- CN215980189U CN215980189U CN202121775651.XU CN202121775651U CN215980189U CN 215980189 U CN215980189 U CN 215980189U CN 202121775651 U CN202121775651 U CN 202121775651U CN 215980189 U CN215980189 U CN 215980189U
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Abstract
The utility model discloses a header lifting hydraulic system, which comprises a frame, an upper header, a lower header and a header oil cylinder, wherein the upper header and the lower header are rotatably arranged on the frame; the hydraulic control system comprises a gear booster pump, a hydraulic oil tank and a multi-way valve, wherein the bottom of the gear booster pump is provided with a booster pump inlet, the bottom of the hydraulic oil tank is provided with an oil tank outlet, and the oil tank outlet is communicated with a booster pump inlet of the gear booster pump through an oil inlet pipe; the top end of the gear booster pump is provided with a first booster pump outlet which is communicated with an inlet of the multi-way valve through an adjusting oil pipe. The hydraulic steering system and the hydraulic adjusting system are combined into a whole, and the two outlets are arranged on the gear booster pump to respectively provide high-pressure hydraulic oil for the hydraulic steering system and the hydraulic adjusting system, so that the number of the gear booster pumps is reduced, the structure of the hydraulic control system is optimized, and the occupied space is reduced.
Description
Technical Field
The utility model relates to the field of corn harvesters, in particular to a header lifting hydraulic system.
Background
The stalk and ear harvesting platform consists of an upper cutting platform and a lower cutting platform, wherein the upper cutting platform is used for picking up the stalks, and the lower cutting platform is used for cutting off the stalks. When the corn harvester runs in a non-working state, the header needs to be retracted, and when the corn harvester runs in a field, the header needs to be put down; and according to the characteristics of corn crops in different areas, the position of the header is required to be adjusted up and down according to the actual working conditions when the corn is harvested. The adjustment of the upper and lower positions of the header is adjusted by controlling a header oil cylinder by a corn harvester hydraulic control system.
The existing whole vehicle hydraulic system is divided into a hydraulic steering system and a hydraulic control system, the hydraulic steering system and the hydraulic control system are two mutually independent hydraulic circulating systems, two sets of gear pumps are required to be independently arranged for pressurizing hydraulic oil, the occupied space is large, and the production and maintenance costs are increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model adopts the following technical scheme:
the header lifting hydraulic system comprises a frame, an upper header, a lower header and a header oil cylinder, wherein the upper header and the lower header are rotatably installed on the frame, two ends of the header oil cylinder are respectively and hingedly installed on the frame and the lower header, and the header oil cylinder is communicated with a multi-way valve in a hydraulic control system.
Preferably, the hydraulic control system comprises a gear booster pump, a hydraulic oil tank and a multi-way valve, wherein a booster pump inlet is formed in the bottom of the gear booster pump, an oil tank oil outlet is formed in the bottom of the hydraulic oil tank, and the oil tank oil outlet is communicated with a booster pump inlet of the gear booster pump through an oil inlet pipe; the top end of the gear booster pump is provided with a first booster pump outlet which is communicated with an inlet of the multi-way valve through an adjusting oil pipe.
Preferably, a high-temperature and high-pressure resistant filter is arranged on the adjusting oil pipe.
Preferably, a control oil return port is formed in the top end of the hydraulic oil tank, and an outlet of the multi-way valve is communicated with the control oil return port through a first oil return pipe; the top of gear booster pump still is provided with booster pump export two, booster pump export two is through turning to oil pipe and steering cylinder intercommunication.
Preferably, the multi-way valve comprises a main control valve and a plurality of auxiliary control valves, the main control valve and the plurality of auxiliary control valves are sequentially connected together, and the plurality of auxiliary control valves are reversing valves and are provided with oil inlets P and oil outlets T; an oil inlet and an oil outlet are formed in the side face of the master control valve, the oil inlet is communicated with the adjusting oil pipe, and the oil outlet is communicated with the first oil return pipe; the oil inlets P and the oil outlets T of the auxiliary control valves are communicated with each other, the oil inlets P and the oil inlets of the auxiliary control valves adjacent to the main control valve are communicated, and the oil outlets T and the oil outlets are communicated.
Preferably, a driver is arranged at the top end of the master control valve; the auxiliary control valve comprises a valve body, an upper driver is arranged at the top end of the valve body, a lower driver is arranged at the bottom end of the valve body, and the auxiliary control valve is controlled to switch a flow path through the upper driver and the lower driver; and an oil port A and an oil port B are arranged on the side surface of the valve body and are communicated with the control oil cylinder.
Preferably, the plurality of auxiliary control valves are identical in structure.
Preferably, the oil inlet end of the header oil cylinder is communicated with the oil port A through an oil cylinder oil inlet pipe, and the oil return end is communicated with the oil port B through an oil cylinder oil return pipe.
Preferably, the lower cutting table is sequentially connected with a feeder and a straw crusher, and the straw crusher is hinged on the frame; one end of the header oil cylinder is hinged on the frame through a support, and the other unit is hinged on the feeder through an oil cylinder support lug.
After the technical scheme is adopted, compared with the prior art, the utility model has the following advantages:
according to the multi-way valve of the hydraulic traveling system, the general control valve, the grass bin control valve, the granary control valve, the header control valve, the returning machine control valve and other control valves are integrated, only a single input pipeline and a single output pipeline need to be arranged, different hydraulic pipelines and control valves are avoided, and the multi-way valve is simple in structure, small in size and small in occupied space.
According to the hydraulic control system of the hydraulic walking system of the harvester, the hydraulic steering system and the gear booster pump of the hydraulic adjusting system are combined into a whole, and the two outlets are arranged on the gear booster pump to respectively provide high-pressure hydraulic oil for the hydraulic steering system and the hydraulic adjusting system, so that the number of the gear booster pumps is reduced, the structure of the hydraulic control system is optimized, and the space occupation is reduced.
Drawings
FIG. 1 is a diagram of a hydraulic control system in a header lifting hydraulic system according to the present invention;
FIG. 2 is a structure diagram of a multi-way valve in the header lifting hydraulic system of the present invention;
fig. 3 is a structure diagram of a header in the header lifting hydraulic system.
Detailed Description
The present invention will be further illustrated with reference to the following figures and specific examples, which are to be understood as merely illustrative and not restrictive of the scope of the utility model.
As shown in fig. 1-3, the header lifting hydraulic system comprises a gear booster pump 1 and a hydraulic oil tank 2, wherein a booster pump inlet 3 is arranged at the bottom of the gear booster pump 1, and an oil tank oil outlet 4 is arranged at the bottom of the hydraulic oil tank 2. And the oil outlet 4 of the oil tank is communicated with a booster pump inlet 3 of the gear booster pump 1 through an oil inlet pipe 5, and then hydraulic oil is provided for the gear booster pump 1.
Further, the hydraulic control system further comprises a multi-way valve 6, wherein the multi-way valve 6 is connected with a header oil cylinder, a granary oil cylinder, a grass bin oil cylinder, a field returning machine oil cylinder and the like on the harvester and used for controlling the header oil cylinder, the granary oil cylinder, the grass bin oil cylinder and the field returning machine oil cylinder to adjust the positions of the header, the granary, the grass bin, the field returning machine and the like. The top of gear booster pump 1 is provided with booster pump export 7, booster pump export 7 is through adjusting the entry intercommunication of oil pipe 8 and multiple unit valve 6, provides high-pressure hydraulic oil for multiple unit valve 6. Preferably, the adjusting oil pipe 8 is provided with a high-temperature and high-pressure resistant filter 9, the hydraulic oil entering the multi-way valve 6 is filtered by the high-temperature and high-pressure resistant filter arranged on the adjusting oil pipe 8, and therefore the multi-way valve 6 is prevented from being blocked or not tightly sealed by impurities in the hydraulic oil and the abrasion of the impurities to the multi-way valve is reduced.
Further, a control oil return port 10 is arranged at the top end of the hydraulic oil tank 2. And the outlet of the multi-way valve 6 is communicated with a control oil return port 10 through a first oil return pipe 11.
Further, the top end of the gear booster pump 1 is also provided with a booster pump outlet two 12, the booster pump outlet two 12 is communicated with a steering oil cylinder (not shown) through a steering oil pipe, and then the steering oil cylinder is controlled to work to change the direction of the wheels.
Further, the multiway valve 6 comprises a main control valve 6.1 and a plurality of auxiliary control valves 6.2. The general control valve 6.1 and the auxiliary control valves 6.2 are connected together in sequence. The auxiliary control valves 6.2 are reversing valves and are provided with oil inlets P and oil outlets T.
Further, an oil inlet 6.11 and an oil outlet 6.12 are arranged on the side face of the master control valve 6.1, the oil inlet 6.11 is communicated with the adjusting oil pipe 8, and the oil outlet 6.12 is communicated with the first oil return pipe 11. The oil inlets P and the oil outlets T of the auxiliary control valves 6.2 are communicated with each other, the oil inlets P of the auxiliary control valves 6.2 adjacent to the main control valve 6.1 are communicated with the oil inlets 6.11, and the oil outlets T are communicated with the oil outlets 6.12. High-pressure hydraulic oil is supplied to oil inlets P of a plurality of auxiliary control valves 6.2 through a master control valve 6.1, and the plurality of auxiliary control valves 6.2 return hydraulic oil to the master control valve 6.1 through oil outlets T and flow to the hydraulic oil tank 2 from the oil outlets 6.12.
Further, a driver 6.13 is arranged at the top end of the master control valve 6.1, and the driver is used for controlling the master control valve to open and close.
Further, the auxiliary control valve 6.2 comprises a valve body 6.21, an upper driver 6.22 is arranged at the top end of the valve body 6.21, a lower driver 6.23 is arranged at the bottom end of the valve body 6.21, and the auxiliary control valve 6.2 is controlled by the upper driver 6.21 and the lower driver 6.23 to switch the flow path. An oil port A6.24 and an oil port B6.25 are arranged on the side face of the valve body 6.21, and the oil port A6.24 and the oil port B6.25 are communicated with a control oil cylinder so as to drive the oil cylinder to work.
Further, the auxiliary control valves 6.2 are identical in structure.
Further, header lift hydraulic system still includes frame 13, header 15, header 14 and header hydro-cylinder 17 down, header 15 and header 14 rotationally install on frame 13 down, header hydro-cylinder 17 both ends are articulated respectively and are installed on frame 13 and header 14 down, header hydro-cylinder 17 and multiport valve 6 UNICOM.
Further, the oil inlet end of the header oil cylinder 17 is communicated with the oil port A6.24 through an oil cylinder oil inlet pipe 21, and the oil return end is communicated with the oil port B6.25 through an oil cylinder oil return pipe 22.
Further, the lower header 14 is sequentially connected with a feeder 16 and a straw crusher 20, and the straw crusher 20 is hinged on the frame 13; one end of the header oil cylinder 17 is hinged on the frame 13 through a support 18, and the other unit is hinged on the feeder 16 through an oil cylinder support lug 19.
The foregoing is illustrative of the best mode of the utility model and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The scope of the present invention is defined by the appended claims, and any equivalent modifications based on the technical teaching of the present invention are also within the scope of the present invention.
Claims (9)
1. The utility model provides a header lift hydraulic system, includes frame (13), header (15), header (14) and header hydro-cylinder (17) down, header (15) and header (14) are rotationally installed on frame (13) down, header hydro-cylinder (17) both ends are articulated respectively and are installed on frame (13) and header (14) down, its characterized in that: the header oil cylinder (17) is communicated with a multi-way valve (6) in the hydraulic control system.
2. A header lift hydraulic system as defined in claim 1, wherein: the hydraulic control system comprises a gear booster pump (1), a hydraulic oil tank (2) and a multi-way valve (6), wherein a booster pump inlet (3) is formed in the bottom of the gear booster pump (1), an oil tank oil outlet (4) is formed in the bottom of the hydraulic oil tank (2), and the oil tank oil outlet (4) is communicated with a booster pump lambda port (3) of the gear booster pump (1) through an oil inlet pipe (5); the top of gear booster pump (1) is provided with booster pump export (7), booster pump export (7) are through adjusting the entry intercommunication of oil pipe (8) and multiple unit valve (6).
3. A header lift hydraulic system as defined in claim 2, wherein: and a high-temperature and high-pressure resistant filter (9) is arranged on the adjusting oil pipe (8).
4. A header lift hydraulic system as defined in claim 2, wherein: a control oil return port (10) is formed in the top end of the hydraulic oil tank (2), and an outlet of the multi-way valve (6) is communicated with the control oil return port (10) through a first oil return pipe (11); the top of gear booster pump (1) still is provided with booster pump export two (12), booster pump export two (12) are through turning to oil pipe and steering cylinder intercommunication.
5. A header lift hydraulic system as claimed in any one of claims 2 to 4, wherein: the multi-way valve (6) comprises a main control valve (6.1) and a plurality of auxiliary control valves (6.2), the main control valve (6.1) and the plurality of auxiliary control valves (6.2) are sequentially connected together, and the plurality of auxiliary control valves (6.2) are reversing valves and are provided with oil inlets P and oil outlets T; an oil inlet (6.11) and an oil outlet (6.12) are arranged on the side face of the master control valve (6.1), the oil inlet (6.11) is communicated with the adjusting oil pipe (8), and the oil outlet (6.12) is communicated with the first oil return pipe (11); the oil inlets P and the oil outlets T of the auxiliary control valves (6.2) are communicated with each other, the oil inlets P of the auxiliary control valves (6.2) adjacent to the main control valve (6.1) are communicated with the oil inlets (6.11), and the oil outlets T are communicated with the oil outlets (6.12).
6. A header lift hydraulic system as claimed in claim 5, wherein: a driver (6.13) is arranged at the top end of the master control valve (6.1); the auxiliary control valve (6.2) comprises a valve body (6.21), an upper driver (6.22) is arranged at the top end of the valve body (6.21), a lower driver (6.23) is arranged at the bottom end of the valve body (6.21), and the auxiliary control valve (6.2) is controlled to switch a flow path through the upper driver (6.21) and the lower driver (6.23); an oil port A (6.24) and an oil port B (6.25) are arranged on the side face of the valve body (6.21), and the oil port A (6.24) and the oil port B (6.25) are communicated with the control oil cylinder.
7. A header lift hydraulic system as claimed in claim 5, wherein: the auxiliary control valves (6.2) are identical in structure.
8. A header lift hydraulic system as defined in claim 6, wherein: the oil inlet end of the header oil cylinder (17) is communicated with the oil port A (6.24) through an oil cylinder oil inlet pipe (21), and the oil return end is communicated with the oil port B (6.25) through an oil cylinder oil return pipe (22).
9. A header lift hydraulic system as claimed in any one of claims 1-4, 6-8, wherein: the lower cutting table (14) is sequentially connected with a feeder (16) and a straw crusher (20), and the straw crusher (20) is hinged on the frame (13); one end of the header oil cylinder (17) is hinged on the frame (13) through a support (18), and the other unit is hinged on the feeder (16) through an oil cylinder support lug (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121775651.XU CN215980189U (en) | 2021-07-30 | 2021-07-30 | Header lift hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121775651.XU CN215980189U (en) | 2021-07-30 | 2021-07-30 | Header lift hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215980189U true CN215980189U (en) | 2022-03-08 |
Family
ID=80576688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121775651.XU Active CN215980189U (en) | 2021-07-30 | 2021-07-30 | Header lift hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215980189U (en) |
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2021
- 2021-07-30 CN CN202121775651.XU patent/CN215980189U/en active Active
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