Hydraulic system for packaging of cotton picker

Abstract

The utility model discloses a hydraulic system for packaging of a cotton picker, which comprises at least one rocker arm hydraulic system, a bag picker hydraulic system, a packaging film lifting hydraulic system and a packaging film conveying hydraulic system. The rocker arm hydraulic system comprises a two-position three-way electromagnetic valve, a two-position two-way electromagnetic valve, a first oil way, a second oil way, a third oil way, a fourth oil way and a fifth oil way. The two-position three-way electromagnetic valve comprises a first inlet, a second inlet and a first outlet, the two-position two-way electromagnetic valve comprises a third inlet and a second outlet, the first inlet is connected with an oil return tank through a first oil way, the second inlet is connected with a hydraulic source through a second oil way, and the first outlet is connected with the third inlet through a third oil way; the second outlet is connected with the first hydraulic working element set through the fourth oil way, and the two ends of the fifth oil way are connected with the oil return box and the first hydraulic working element set respectively.

Description

Technical Field

[0001] The utility model relates to a hydraulic system for baling a cotton picker. Background Art

[0002] A bale picker is a machine used for collecting and packing. It is commonly used in fields such as agriculture, forestry, construction, and waste disposal. A bale picker can improve work efficiency, reduce manual labor intensity, and reduce production costs. Depending on the specific application scenario, the design and function of a bale picker will also vary. For example, in agriculture, a bale picker can be used to harvest crops such as wheat, corn, etc. and pack them into bundles or bags for easy transportation and storage.

[0003] Nowadays, various agricultural machinery realizes power transmission through hydraulic systems, but different agricultural machinery has different hydraulic systems, and the same agricultural machinery also has different hydraulic systems to realize the required functions. This patent aims to provide a hydraulic system to realize the baling function of cotton pickers. Utility Model Content

[0004] The purpose of the utility model is to solve the above deficiencies in the prior art and provide a hydraulic system for baling a cotton picker.

[0005] A hydraulic system for cotton picker baling, comprising at least one rocker arm hydraulic system, a bale picker hydraulic system, a packaging film lifting hydraulic system, and a packaging film conveying hydraulic system, wherein the rocker arm hydraulic system comprises a two-position three-way solenoid valve, a two-position two-way solenoid valve, a first oil circuit, a second oil circuit, a third oil circuit, a fourth oil circuit, and a fifth oil circuit;

[0006] The two-position three-way solenoid valve comprises a first inlet, a second inlet, and a first outlet, the two-position two-way solenoid valve comprises a third inlet and a second outlet, the first inlet is connected to the oil return tank through the first oil circuit, the second inlet is connected to the hydraulic source through the second oil circuit, the first outlet is connected to the third inlet through the third oil circuit, the second outlet is connected to the first hydraulic working element group through the fourth oil circuit, and both ends of the fifth oil circuit are connected to the oil return tank and the first hydraulic working element group respectively;

[0007] The two-position three-way solenoid valve comprises a first position and a second position, wherein the first position: the first inlet is closed and the second inlet is connected to the first outlet, and the second position: the first inlet is connected to the first outlet and the second inlet is closed;

[0008] The two-position two-way solenoid valve comprises a first station and a second station, wherein the third inlet and the second outlet are connected at the first station; and the third inlet and the second outlet are connected at the second station, and the valve has a one-way cut-off function;

[0009] The rocker arm hydraulic system is connected to the rocker arm pressure reducing hydraulic system.

[0010] Preferably, a pressure limiting valve is provided on the fifth oil circuit.

[0011] Preferably, the rocker arm decompression hydraulic system includes a two-position three-way solenoid valve, a first inlet of which is connected to the hydraulic source through the sixth oil circuit, a second inlet is connected to the return oil tank through the seventh oil circuit, a first outlet is connected to the second hydraulic element group through the eighth oil circuit, a one-way valve is provided on the eighth oil circuit, the eighth oil circuit is also connected to the pressure measuring port, and the eighth oil circuit is connected to the fifth oil circuit.

[0012] Preferably, the bag collecting machine hydraulic system includes two hydraulic system branches with the same structure, and the hydraulic system branches include two two-position two-way solenoid valves, a ninth oil circuit, a tenth oil circuit, an eleventh oil circuit, and a twelfth oil circuit. The two ends of the ninth oil circuit are respectively connected to the hydraulic source and the third hydraulic element group, a two-position two-way solenoid valve is provided on the ninth oil circuit, the ninth oil circuit is connected to the eleventh oil circuit through the tenth oil circuit, the eleventh oil circuit is connected to the return oil tank, a two-position two-way solenoid valve is provided on the tenth oil circuit, and a pressure limiting valve is also provided between the ninth oil circuit and the return oil tank; the pressure limiting valve is located in the twelfth oil circuit, and the twelfth oil circuit is connected to the eleventh oil circuit.

[0013] Preferably, the packaging film lifting hydraulic system includes a three-position four-way solenoid valve, the three-position four-way solenoid valve includes a first inlet, a second inlet, a first outlet, and a second outlet, the first inlet is connected to the hydraulic source through a thirteenth oil circuit, the second inlet is connected to the oil return tank through a fourteenth oil circuit, the first outlet is connected to the fourth hydraulic element group through a fifteenth oil circuit, the second outlet is connected to the fourth hydraulic element group through a sixteenth oil circuit, a one-way valve is provided on the sixteenth oil circuit, and the one-way valve is connected to the fifteenth oil circuit;

[0014] The three-position four-way solenoid valve comprises a first station, a second station and a third station; in the first station: the first inlet is connected to the first outlet, and the second inlet is connected to the second outlet; in the second station: the first inlet is closed, and the second inlet is connected to the first outlet and the second outlet; in the third station: the first inlet is connected to the second outlet, and the second inlet is connected to the first outlet.

[0015] Preferably, the packaging film conveying hydraulic system comprises a two-position four-way solenoid valve, the two-position four-way solenoid valve comprises a first inlet, a second inlet, a first outlet, and a second outlet, the first inlet is connected to the hydraulic source through a seventeenth oil circuit, the second inlet is connected to the oil return tank through an eighteenth oil circuit, the first outlet is connected to the fifth hydraulic element group through a nineteenth oil circuit, and the second outlet is connected to the fifth hydraulic element group through a twentieth oil circuit;

[0016] The two-position four-way solenoid valve includes a first position and a second position;

[0017] The first station has a first inlet connected to a first outlet, and a second inlet connected to a second outlet; the second station has a first inlet connected to a second outlet, and a second inlet connected to the first outlet.

[0018] Beneficial effects: Compared with the prior art, the utility model forms a hydraulic transmission system of a bag picking machine through a rocker arm hydraulic system, a bag picking machine hydraulic system, a packaging film lifting hydraulic system, and a packaging film conveying hydraulic system to meet some functions of the existing bag picking machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a hydraulic system used for baling cotton pickers;

[0020] In the figure, 1, the first oil circuit, 2, the second oil circuit, 3, the third oil circuit, 4, the fourth oil circuit, 5, the fifth oil circuit, 6, the sixth oil circuit, 7, the seventh oil circuit, 8, the eighth oil circuit, 9, the ninth oil circuit, 10, the tenth oil circuit, 11, the eleventh oil circuit, 12, the twelfth oil circuit, 13, the thirteenth oil circuit, 14, the fourteenth oil circuit, 15, the fifteenth oil circuit, 16, the sixteenth oil circuit, 17, the seventeenth oil circuit, 18, the eighteenth oil circuit, 19, the nineteenth oil circuit, 20, the twentieth oil circuit, 21, a two-position three-way solenoid valve, 22, a two-position two-way solenoid valve, 23, a pressure limiting valve, 24, a three-position four-way solenoid valve, 25, a two-position four-way solenoid valve. DETAILED DESCRIPTION

[0021] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0022] like Figure 1 As shown, a first oil circuit 1, a second oil circuit 2, a third oil circuit 3, a fourth oil circuit 4, a fifth oil circuit 5, a sixth oil circuit 6, a seventh oil circuit 7, an eighth oil circuit 8, a ninth oil circuit 9, a tenth oil circuit 10, an eleventh oil circuit 11, a twelfth oil circuit 12, a thirteenth oil circuit 13, a fourteenth oil circuit 14, a fifteenth oil circuit 15, a sixteenth oil circuit 16, a seventeenth oil circuit 17, an eighteenth oil circuit 18, a nineteenth oil circuit 19, a twentieth oil circuit 20, a two-position three-way solenoid valve 21, a two-position two-way solenoid valve 22, a pressure limiting valve 23, a three-position four-way solenoid valve 24, and a two-position four-way solenoid valve 25;

[0023] A hydraulic system for cotton picker baling, comprising at least one rocker arm hydraulic system, a bale picking machine hydraulic system, a packaging film lifting hydraulic system, and a packaging film conveying hydraulic system, wherein the rocker arm hydraulic system comprises a two-position three-way solenoid valve 21, a two-position two-way solenoid valve 22, a first oil circuit 1, a second oil circuit 2, a third oil circuit 3, a fourth oil circuit 4, and a fifth oil circuit 5;

[0024] The two-position three-way solenoid valve 21 includes a first inlet, a second inlet, and a first outlet, and the two-position two-way solenoid valve 22 includes a third inlet and a second outlet, the first inlet is connected to the oil return tank through the first oil circuit 1, the second inlet is connected to the hydraulic source through the second oil circuit 2, the first outlet is connected to the third inlet through the third oil circuit 3, the second outlet is connected to the first hydraulic working element group through the fourth oil circuit 4, and both ends of the fifth oil circuit 5 are connected to the oil return tank and the first hydraulic working element group respectively;

[0025] The two-position three-way solenoid valve 21 includes a first position and a second position. In the first position, the first inlet is closed and the second inlet is connected to the first outlet. In the second position, the first inlet is connected to the first outlet and the second inlet is closed.

[0026] The two-position two-way solenoid valve 22 includes a first station and a second station, wherein the third inlet and the second outlet are connected at the first station; and the third inlet and the second outlet are connected at the second station, and the valve has a one-way shutoff function.

[0027] The rocker arm hydraulic system is connected to the rocker arm pressure reducing hydraulic system.

[0028] In this embodiment, a pressure limiting valve 23 is provided on the fifth oil circuit 5 .

[0029] In this embodiment, the rocker arm decompression hydraulic system includes a two-position three-way solenoid valve 21, whose first inlet is connected to the hydraulic source through the sixth oil circuit 6, the second inlet is connected to the return oil tank through the seventh oil circuit 7, and the first outlet is connected to the second hydraulic element group through the eighth oil circuit 8. A one-way valve is provided on the eighth oil circuit 8. The eighth oil circuit 8 is also connected to the pressure measuring port, and the eighth oil circuit 8 is connected to the fifth oil circuit 5.

[0030] In this embodiment, the hydraulic system of the bag picking machine includes two hydraulic system branches with the same structure, and the hydraulic system branches include two two-position two-way solenoid valves 22, the ninth oil circuit 9, the tenth oil circuit 10, the eleventh oil circuit 11, and the twelfth oil circuit 12. The two ends of the ninth oil circuit 9 are respectively connected to the hydraulic source and the third hydraulic component group, a two-position two-way solenoid valve 22 is provided on the ninth oil circuit 9, the ninth oil circuit 9 is connected to the eleventh oil circuit 11 through the tenth oil circuit 10, the eleventh oil circuit 11 is connected to the return oil tank, a two-position two-way solenoid valve 22 is provided on the tenth oil circuit 10, and a pressure limiting valve 23 is also provided between the ninth and the return oil tank; the pressure limiting valve 23 is located in the twelfth oil circuit 12, and the twelfth oil circuit 12 is connected to the eleventh oil circuit 11.

[0031] In this embodiment, the packaging film lifting hydraulic system includes a three-position four-way solenoid valve 24, and the three-position four-way solenoid valve 24 includes a first inlet, a second inlet, a first outlet, and a second outlet. The first inlet is connected to the hydraulic source through the thirteenth oil circuit 13, the second inlet is connected to the return oil tank through the fourteenth oil circuit 14, the first outlet is connected to the fourth hydraulic element group through the fifteenth oil circuit 15, and the second outlet is connected to the fourth hydraulic element group through the sixteenth oil circuit 16. A one-way valve is provided on the sixteenth oil circuit 16, and the one-way valve is connected to the fifteenth oil circuit 15. When the pressure on the left side is sufficient, the hydraulic oil is allowed to flow from top to bottom;

[0032] The three-position four-way solenoid valve 24 includes a first station, a second station and a third station; in the first station: the first inlet is connected to the first outlet, and the second inlet is connected to the second outlet; in the second station: the first inlet is closed, and the second inlet is connected to the first outlet and the second outlet; in the third station: the first inlet is connected to the second outlet, and the second inlet is connected to the first outlet.

[0033] In this embodiment, the packaging film conveying hydraulic system includes a two-position four-way solenoid valve 25, and the two-position four-way solenoid valve 25 includes a first inlet, a second inlet, a first outlet, and a second outlet. The first inlet is connected to the hydraulic source through the seventeenth oil path 17, the second inlet is connected to the return oil tank through the eighteenth oil path 18, the first outlet is connected to the fifth hydraulic element group through the nineteenth oil path 19, and the second outlet is connected to the fifth hydraulic element group through the twentieth oil path 20;

[0034] The two-position four-way solenoid valve 25 includes a first position and a second position;

[0035] The first station has a first inlet connected to a first outlet, and a second inlet connected to a second outlet; the second station has a first inlet connected to a second outlet, and a second inlet connected to the first outlet.

[0036] Specifically: there are two rocker arm hydraulic systems, and the two hydraulic system branches of the bagger hydraulic system are arranged in a mirror image. Among the two two-position three-way solenoid valves 21, one is a valve substitute proportional valve, and the other is a valve lowering proportional valve; in the rocker arm hydraulic system, the two-position two-way solenoid valve 22 is the rocker arm shaft lowering solenoid valve, and the two-position three-way solenoid valve 21 is the rocker arm shaft rising solenoid valve; in the rocker arm decompression hydraulic system, the two-position three-way solenoid valve 21 is the rocker arm decompression solenoid valve.

[0037] The flow direction of the liquid inside the reversing valve in this hydraulic system, as well as the overall structure of the oil circuit after the reversing valve changes position, are detailed in Figure 1 .

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic system for baling a cotton picker, characterized in that: It includes at least one rocker hydraulic system, a bag picking machine hydraulic system, a packaging film lifting hydraulic system, and a packaging film conveying hydraulic system. The rocker hydraulic system includes a two-position three-way solenoid valve, a two-position two-way solenoid valve, a first oil circuit, a second oil circuit, a third oil circuit, a fourth oil circuit, and a fifth oil circuit; The two-position three-way solenoid valve comprises a first inlet, a second inlet, and a first outlet, the two-position two-way solenoid valve comprises a third inlet and a second outlet, the first inlet is connected to the oil return tank through the first oil circuit, the second inlet is connected to the hydraulic source through the second oil circuit, the first outlet is connected to the third inlet through the third oil circuit, the second outlet is connected to the first hydraulic working element group through the fourth oil circuit, and both ends of the fifth oil circuit are connected to the oil return tank and the first hydraulic working element group respectively; The two-position three-way solenoid valve comprises a first position and a second position, wherein the first position: the first inlet is closed and the second inlet is connected to the first outlet, and the second position: the first inlet is connected to the first outlet and the second inlet is closed; The two-position two-way solenoid valve comprises a first station and a second station, wherein the third inlet and the second outlet are connected at the first station; and the third inlet and the second outlet are connected at the second station, and the valve has a one-way cut-off function; The rocker arm hydraulic system is connected to the rocker arm pressure reducing hydraulic system.

2. A hydraulic system for baling a cotton picker according to claim 1, characterized in that: The fifth oil circuit is provided with a pressure limiting valve.

3. A hydraulic system for baling a cotton picker according to claim 1, characterized in that: The rocker arm pressure reducing hydraulic system includes a two-position three-way solenoid valve, whose first inlet is connected to the hydraulic source through the sixth oil circuit, the second inlet is connected to the return oil tank through the seventh oil circuit, the first outlet is connected to the second hydraulic element group through the eighth oil circuit, a one-way valve is provided on the eighth oil circuit, the eighth oil circuit is also connected to the pressure measuring port, and the eighth oil circuit is connected to the fifth oil circuit.

4. A hydraulic system for baling a cotton picker according to claim 1, characterized in that: The hydraulic system of the bag picking machine includes two hydraulic system branches with the same structure. The hydraulic system branches include two or four two-position two-way solenoid valves, a ninth oil circuit, a tenth oil circuit, an eleventh oil circuit, and a twelfth oil circuit. The two ends of the ninth oil circuit are respectively connected to the hydraulic source and the third hydraulic component group. A two-position two-way solenoid valve is provided on the ninth oil circuit. The ninth oil circuit is connected to the eleventh oil circuit through the tenth oil circuit. The eleventh oil circuit is connected to the return oil tank. A two-position two-way solenoid valve is provided on the tenth oil circuit. A pressure limiting valve is also provided between the ninth and the return oil tank; the pressure limiting valve is located in the twelfth oil circuit, and the twelfth oil circuit is connected to the eleventh oil circuit.

5. The hydraulic system for baling a cotton picker according to claim 1, characterized in that: The packaging film lifting hydraulic system includes a three-position four-way solenoid valve, the three-position four-way solenoid valve includes a first inlet, a second inlet, a first outlet, and a second outlet, the first inlet is connected to the hydraulic source through a thirteenth oil circuit, the second inlet is connected to the oil return tank through a fourteenth oil circuit, the first outlet is connected to the fourth hydraulic element group through a fifteenth oil circuit, the second outlet is connected to the fourth hydraulic element group through a sixteenth oil circuit, a one-way valve is provided on the sixteenth oil circuit, and the one-way valve is connected to the fifteenth oil circuit; The three-position four-way solenoid valve comprises a first station, a second station and a third station; in the first station: the first inlet is connected to the first outlet, and the second inlet is connected to the second outlet; in the second station: the first inlet is closed, and the second inlet is connected to the first outlet and the second outlet; in the third station: the first inlet is connected to the second outlet, and the second inlet is connected to the first outlet.

6. The hydraulic system for baling a cotton picker according to claim 1, characterized in that: The packaging film conveying hydraulic system includes a two-position four-way solenoid valve, the two-position four-way solenoid valve includes a first inlet, a second inlet, a first outlet, and a second outlet, the first inlet is connected to the hydraulic source through a seventeenth oil circuit, the second inlet is connected to the oil return tank through an eighteenth oil circuit, the first outlet is connected to the fifth hydraulic element group through a nineteenth oil circuit, and the second outlet is connected to the fifth hydraulic element group through a twentieth oil circuit; The two-position four-way solenoid valve includes a first position and a second position; The first station has a first inlet connected to a first outlet, and a second inlet connected to a second outlet; the second station has a first inlet connected to a second outlet, and a second inlet connected to the first outlet.

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