Hydraulic system for four-row cotton box of cotton picker

Abstract

The utility model discloses a hydraulic system for a four-row cotton box of a cotton picker. The hydraulic system comprises a cotton box inclination hydraulic system, a cotton box extension hydraulic system, a cotton box side door hydraulic system, a compactor motor hydraulic system, a hood hydraulic system, a cotton box ground motor hydraulic system and a cotton box door motor hydraulic system, the cotton box inclination hydraulic system comprises two first two-position two-way electromagnetic valves, a first oil way and a second oil way, the two ends of the first oil way are connected with the oil return tank and the first hydraulic element respectively, the two ends of the second oil way are connected with the hydraulic source and the first hydraulic element respectively, and a flow distributing and collecting valve and a one-way valve are arranged on the second oil way. The first oil way is connected with the second oil way through a third oil way, the connecting point of the third oil way and the second oil way is located between the flow distributing and collecting valve and the first two-position two-way electromagnetic valves, the third oil way is provided with the first two-position two-way electromagnetic valves, and the one-way valve is located between the two first two-position two-way electromagnetic valves.

Description

Technical Field

[0001] The utility model relates to a hydraulic system for a four-row cotton box of a cotton picker. Background Art

[0002] The picking efficiency of cotton pickers is far higher than that of manual picking. The quality of the picked seed cotton is the same as that of manual picking, without any residual cotton or contamination by impurities. The existing cotton pickers need to store and pack cotton during picking, so the cotton box of the cotton picker is very important. Different types of cotton pickers require different hydraulic systems to achieve transmission, but the hydraulic system oil circuit of the existing cotton picker cotton box is relatively complicated. This patent aims to provide a relatively simplified hydraulic oil circuit system to achieve some functions of the cotton box. Utility Model Content

[0003] The purpose of the utility model is to solve the above deficiencies in the prior art and to provide a hydraulic system for a four-row cotton box of a cotton picker.

[0004] A hydraulic system for a cotton box of a four-row cotton picker, comprising a cotton box tilting hydraulic system, a cotton box extension hydraulic system, a cotton box side door hydraulic system, a compactor motor hydraulic system, a hood hydraulic system, a cotton box ground motor hydraulic system, and a cotton box door motor hydraulic system;

[0005] The cotton box tilting hydraulic system includes two two-position two-way solenoid valves, a first oil circuit, and a second oil circuit. The two ends of the first oil circuit are respectively connected to the return oil tank and the first hydraulic element, and the two ends of the second oil circuit are respectively connected to the hydraulic source and the first hydraulic element. A flow dividing and collecting valve and a one-way valve are arranged on the second oil circuit. The first oil circuit is connected to the second oil circuit through a third oil circuit. The connection point of the third oil circuit and the second oil circuit is located between the flow dividing and collecting valve and the two-position two-way solenoid valve. A two-position two-way solenoid valve is arranged on the third oil circuit, and the one-way valve is located between the two two-position two-way solenoid valves.

[0006] The two-position two-way solenoid valve comprises a first inlet and a first outlet, and comprises a first station and a second station. The first station: the first outlet is connected to the first inlet; the second station: the first inlet is connected to the first outlet, and has a one-way shut-off function.

[0007] Preferably, the cotton box extension hydraulic system includes a two-position three-way solenoid valve and a two-position two-way solenoid valve. The two-position three-way solenoid valve includes a first inlet, a first outlet, and a second outlet. The first inlet is connected to the oil return tank through a fourth oil circuit, and the first outlet is connected to the first inlet of the two-position two-way solenoid valve through a fifth oil circuit. The second outlet of the two-position three-way solenoid valve is connected to the hydraulic source through a sixth oil circuit, and the first outlet of the two-position two-way solenoid valve is connected to the second hydraulic element through a seventh oil circuit.

[0008] The two-position three-way solenoid valve comprises a first station and a second station. In the first station, the first inlet is closed, and the first outlet is connected to the second outlet; in the second station, the first inlet is connected to the first outlet, and the second outlet is closed.

[0009] Preferably, a throttle valve is provided on the sixth oil circuit.

[0010] Preferably, the cotton box side door hydraulic system includes a three-position four-way solenoid valve, which 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 eighth oil circuit, the second inlet is connected to the return oil tank through the ninth oil circuit, the first outlet is connected to the third hydraulic element through the tenth oil circuit, the second outlet is connected to the third hydraulic element through the eleventh oil circuit, a flow dividing and collecting valve is provided on the tenth oil circuit, and a one-way valve is provided on the tenth oil circuit between the flow dividing and collecting valve and the third hydraulic element, and the one-way valve is also connected to the eleventh oil circuit;

[0011] 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.

[0012] Preferably, the compactor motor hydraulic system includes a two-position two-way solenoid valve, a twelfth oil circuit, and a thirteenth oil circuit. The two ends of the twelfth oil circuit are respectively connected to the return oil tank and the fourth hydraulic element, and the two ends of the thirteenth oil circuit are respectively connected to the fourth hydraulic element and the hydraulic element. A two-position two-way solenoid valve is provided on the thirteenth oil circuit.

[0013] Preferably, the hood hydraulic system includes a two-position three-way solenoid valve, whose first inlet is connected to the oil return tank through the fourteenth oil circuit, whose second outlet is connected to the hydraulic source through the fifteenth oil circuit, and whose first outlet is connected to the fifth hydraulic element through the sixteenth oil circuit, and a two-position two-way solenoid valve 1 is provided on the sixteenth oil circuit.

[0014] Preferably, the cotton box ground motor hydraulic system includes a two-position two-way solenoid valve 1 and a two-position two-way solenoid valve 2, the two-position two-way solenoid valve 2 includes a first inlet and a second inlet, the first inlet of which is connected to the first outlet of the two-position two-way solenoid valve 1, and the first outlet is connected to the sixth hydraulic element, the first inlet of the two-position two-way solenoid valve 1 is connected to the hydraulic source through the seventeenth oil circuit, the return oil tank is connected to the sixth hydraulic element through the eighteenth oil circuit, the two-position two-way solenoid valve 2 is connected to the seventeenth oil circuit through the nineteenth oil circuit, and a throttle valve is provided on the nineteenth oil circuit.

[0015] Preferably, the hydraulic system of the cotton box door motor and the hydraulic system of the cotton box bottom motor have the same structure.

[0016] Beneficial effects: Compared with the prior art, the utility model realizes the function of the cotton box of the cotton picker through a variety of reversing valves, and ensures the normal operation of each function on the basis of simplifying the oil circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the hydraulic system for the cotton box of a four-row cotton picker;

[0018] 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, two-position two-way solenoid valve one, 21, the diverter and collector valve, 22, the two-position three-way solenoid valve, 23, the three-position four-way solenoid valve, 24, the two-position two-way solenoid valve two. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figure 1 As shown, the first oil circuit 1, the second oil circuit 2, the third oil circuit 3, the fourth oil circuit 4, the fifth oil circuit 5, the sixth oil circuit 6, the seventh oil circuit 7, the eighth oil circuit 8, the ninth oil circuit 9, the tenth oil circuit 10, the eleventh oil circuit 11, the twelfth oil circuit 12, the thirteenth oil circuit 13, the fourteenth oil circuit 14, the fifteenth oil circuit 15, the sixteenth oil circuit 16, the seventeenth oil circuit 17, the eighteenth oil circuit 18, the nineteenth oil circuit 19, a two-position two-way solenoid valve 1 20, a flow dividing and collecting valve 21, a two-position three-way solenoid valve 22, a three-position four-way solenoid valve 23, and a two-position two-way solenoid valve 2 24;

[0021] A hydraulic system for a cotton box of a four-row cotton picker, comprising a cotton box tilting hydraulic system, a cotton box extension hydraulic system, a cotton box side door hydraulic system, a compactor motor hydraulic system, a hood hydraulic system, a cotton box ground motor hydraulic system, and a cotton box door motor hydraulic system;

[0022] The cotton box tilting hydraulic system includes two two-position two-way solenoid valves 20, a first oil circuit 1, and a second oil circuit 2. The two ends of the first oil circuit 1 are respectively connected to the return oil tank and the first hydraulic element, and the two ends of the second oil circuit 2 are respectively connected to the hydraulic source and the first hydraulic element. The second oil circuit 2 is provided with a flow dividing and collecting valve 21 and a one-way valve. The first oil circuit 1 and the second oil circuit 2 are connected through a third oil circuit 3. The connection point between the third oil circuit 3 and the second oil circuit 2 is located between the flow dividing and collecting valve 21 and the two-position two-way solenoid valve 20. The third oil circuit 3 is provided with a two-position two-way solenoid valve 20, and the one-way valve is located between the two two-position two-way solenoid valves 20.

[0023] The two-position two-way solenoid valve 20 includes a first inlet and a first outlet. The two-position two-way solenoid valve 20 includes a first station and a second station. The first station: the first outlet is connected to the first inlet; the second station: the first inlet is connected to the first outlet, and has a one-way shut-off function.

[0024] In this embodiment, the cotton box extension hydraulic system includes a two-position three-way solenoid valve 22 and a two-position two-way solenoid valve 20. The two-position three-way solenoid valve 22 includes a first inlet, a first outlet, and a second outlet. The first inlet is connected to the return oil tank through a fourth oil circuit 4, and the first outlet is connected to the first inlet of the two-position two-way solenoid valve 20 through a fifth oil circuit 5. The second outlet of the two-position three-way solenoid valve 22 is connected to the hydraulic source through a sixth oil circuit 6, and the first outlet of the two-position two-way solenoid valve 20 is connected to the second hydraulic element through a seventh oil circuit 7.

[0025] The two-position three-way solenoid valve 22 includes a first position and a second position. In the first position, the first inlet is closed, and the first outlet is connected to the second outlet; in the second position, the first inlet is connected to the first outlet, and the second outlet is closed.

[0026] In this embodiment, a throttle valve is provided on the sixth oil circuit 6 .

[0027] In this embodiment, the cotton box side door hydraulic system includes a three-position four-way solenoid valve 23, and the three-position four-way solenoid valve 23 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 eighth oil circuit 8, the second inlet is connected to the return oil tank through the ninth oil circuit 9, the first outlet is connected to the third hydraulic element through the tenth oil circuit 10, and the second outlet is connected to the third hydraulic element through the eleventh oil circuit 11. The tenth oil circuit 10 is provided with a flow dividing and collecting valve 21, and a one-way valve is provided on the tenth oil circuit 10 between the flow dividing and collecting valve 21 and the third hydraulic element, and the one-way valve is also connected to the eleventh oil circuit 11;

[0028] The three-position four-way solenoid valve 23 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.

[0029] In this embodiment, the compactor motor hydraulic system includes a two-position two-way solenoid valve, a twelfth oil circuit 12, and a thirteenth oil circuit 13. The two ends of the twelfth oil circuit 12 are respectively connected to the return oil tank and the fourth hydraulic element, and the two ends of the thirteenth oil circuit 13 are respectively connected to the fourth hydraulic element and the hydraulic element. The thirteenth oil circuit 13 is provided with a two-position two-way solenoid valve 20.

[0030] In this embodiment, the hood hydraulic system includes a two-position three-way solenoid valve 22, whose first inlet is connected to the return oil tank through the fourteenth oil circuit 14, whose second outlet is connected to the hydraulic source through the fifteenth oil circuit 15, and whose first outlet is connected to the fifth hydraulic element through the sixteenth oil circuit 16, and a two-position two-way solenoid valve 20 is provided on the sixteenth oil circuit 16.

[0031] In this embodiment, the cotton box ground motor hydraulic system includes a two-position two-way solenoid valve 1 20 and a two-position two-way solenoid valve 24. The two-position two-way solenoid valve 24 includes a first inlet and a second inlet, wherein the first inlet is connected to the first outlet of the two-position two-way solenoid valve 1 20, and the first outlet is connected to the sixth hydraulic element. The first inlet of the two-position two-way solenoid valve 1 20 is connected to the hydraulic source through the seventeenth oil circuit 17, and the return oil tank is connected to the sixth hydraulic element through the eighteenth oil circuit 18. The two-position two-way solenoid valve 24 is connected to the seventeenth oil circuit 17 through the nineteenth oil circuit 19, and a throttle valve is provided on the nineteenth oil circuit 19. The two-position two-way solenoid valve 24 is also provided with an oil channel which is only used to balance the valve core pressure and is normally blocked.

[0032] In this embodiment, the hydraulic system of the cotton box door motor and the hydraulic system of the cotton box bottom motor have the same structure.

[0033] The oil circuit direction of each reversing valve in this hydraulic system and the specific direction of each oil circuit in the hydraulic system are detailed in Figure 1 .

[0034] 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 a four-row cotton box of a cotton picker, characterized in that: Including cotton box tilt hydraulic system, cotton box extension hydraulic system, cotton box side door hydraulic system, compactor motor hydraulic system, hood hydraulic system, cotton box ground motor hydraulic system, cotton box door motor hydraulic system; The cotton box tilting hydraulic system comprises two two-position two-way solenoid valves, a first oil circuit and a second oil circuit. The two ends of the first oil circuit are respectively connected to the oil return tank and the first hydraulic element, the two ends of the second oil circuit are respectively connected to the hydraulic source and the first hydraulic element, a flow dividing and collecting valve and a one-way valve are arranged on the second oil circuit, the first oil circuit is connected to the second oil circuit through a third oil circuit, the connection point of the third oil circuit and the second oil circuit is located between the flow dividing and collecting valve and the two-position two-way solenoid valve, the third oil circuit is provided with a two-position two-way solenoid valve, and the one-way valve is located between the two two-position two-way solenoid valves; The two-position two-way solenoid valve comprises a first inlet and a first outlet, and comprises a first station and a second station. The first station: the first outlet is connected to the first inlet; the second station: the first inlet is connected to the first outlet, and has a one-way shut-off function.

2. A hydraulic system for a four-row cotton box of a cotton picker according to claim 1, characterized in that: The cotton box extension hydraulic system includes a two-position three-way solenoid valve and a two-position two-way solenoid valve. The two-position three-way solenoid valve includes a first inlet, a first outlet, and a second outlet. The first inlet is connected to the oil return tank through a fourth oil circuit, and the first outlet is connected to the first inlet of the two-position two-way solenoid valve through a fifth oil circuit. The second outlet of the two-position three-way solenoid valve is connected to the hydraulic source through a sixth oil circuit, and the first outlet of the two-position two-way solenoid valve is connected to the second hydraulic element through a seventh oil circuit. The two-position three-way solenoid valve comprises a first station and a second station. In the first station, the first inlet is closed, and the first outlet is connected to the second outlet; in the second station, the first inlet is connected to the first outlet, and the second outlet is closed.

3. A hydraulic system for a four-row cotton box of a cotton picker according to claim 2, characterized in that: A throttle valve is provided on the sixth oil circuit.

4. A hydraulic system for a four-row cotton box of a cotton picker according to claim 1, characterized in that: The cotton box side door hydraulic system includes a three-position four-way solenoid valve, and 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 the eighth oil circuit, the second inlet is connected to the return oil tank through the ninth oil circuit, the first outlet is connected to the third hydraulic element through the tenth oil circuit, and the second outlet is connected to the third hydraulic element through the eleventh oil circuit. A flow dividing and collecting valve is provided on the tenth oil circuit, and a one-way valve is provided on the tenth oil circuit between the flow dividing and collecting valve and the third hydraulic element, and the one-way valve is also connected to the eleventh 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.

5. The hydraulic system for a four-row cotton box of a cotton picker according to claim 1, characterized in that: The compactor motor hydraulic system includes a two-position two-way solenoid valve, a twelfth oil circuit, and a thirteenth oil circuit. The two ends of the twelfth oil circuit are respectively connected to the return oil tank and the fourth hydraulic element, and the two ends of the thirteenth oil circuit are respectively connected to the fourth hydraulic element and the hydraulic element. The thirteenth oil circuit is provided with a two-position two-way solenoid valve.

6. The hydraulic system for a four-row cotton box of a cotton picker according to claim 2, characterized in that: The hood hydraulic system includes a two-position three-way solenoid valve, whose first inlet is connected to the oil return tank through the fourteenth oil circuit, whose second outlet is connected to the hydraulic source through the fifteenth oil circuit, and whose first outlet is connected to the fifth hydraulic element through the sixteenth oil circuit. A two-position two-way solenoid valve is provided on the sixteenth oil circuit.

7. The hydraulic system for a four-row cotton box of a cotton picker according to claim 1, characterized in that: The cotton box ground motor hydraulic system includes a two-position two-way solenoid valve 1 and a two-position two-way solenoid valve 2. The two-position two-way solenoid valve 2 includes a first inlet and a second inlet, the first inlet of which is connected to the first outlet of the two-position two-way solenoid valve 1, and the first outlet is connected to the sixth hydraulic element. The first inlet of the two-position two-way solenoid valve 1 is connected to the hydraulic source through the seventeenth oil circuit, and the return oil tank is connected to the sixth hydraulic element through the eighteenth oil circuit. The two-position two-way solenoid valve 2 is connected to the seventeenth oil circuit through the nineteenth oil circuit, and a throttle valve is provided on the nineteenth oil circuit.

8. The hydraulic system for a four-row cotton box of a cotton picker according to claim 7, characterized in that: The cotton box door motor hydraulic system and the cotton box bottom motor hydraulic system have the same structure.

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