Harvester valve group

Abstract

The utility model provides a harvester valve group which comprises a diverter valve, a reversing valve and a safety valve, a header reversing valve is connected with a header lifting mechanism through an oil pipe, a grain unloading reversing valve is connected with a grain unloading lifting mechanism through an oil pipe, and a reel reversing valve is connected with a reel lifting mechanism through an oil pipe. The header safety valve is respectively connected with the header reversing valve and the diverter valve through oil pipes, the grain unloading and reel safety valve is respectively connected with the grain unloading reversing valve and the diverter valve through oil pipes, and the grain unloading reversing valve is connected with the reel reversing valve through an oil pipe. The valve group is energy-saving and low in cost, can reduce energy consumption and heat productivity, and is simple to operate; and the valve group really realizes synchronous operation of functional actions.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a harvester valve group. Background Technology

[0002] With the continuous improvement of agricultural mechanization, electro-hydraulic systems have become the mainstream in the market. In order to improve product competitiveness, the parallel electro-hydraulic valve groups on the market are affected by the load when working simultaneously, resulting in sequential actions and inability to achieve complete synchronization. Therefore, the shortcomings of the hydraulic systems on the market have been redesigned. Utility Model Content

[0003] The present invention aims to provide a harvester valve assembly that overcomes or at least partially solves the above-mentioned problems.

[0004] To achieve the above objectives, the technical solution of this utility model is specifically implemented as follows:

[0005] This utility model provides a harvester valve group, including a diverter valve, a reversing valve and a safety valve. One end of the diverter valve is connected to the oil supply pipeline and diverts the incoming hydraulic oil.

[0006] The reversing valve includes a header reversing valve, a grain unloading reversing valve, and a reel reversing valve. The header reversing valve is connected to the header lifting mechanism via an oil pipe, and a hydraulically controlled check valve and a first throttle valve are connected in series on the oil cylinder. The grain unloading reversing valve is connected to the grain unloading lifting mechanism via an oil pipe, and a hydraulically controlled check valve and a first throttle valve are connected in series on the oil cylinder. The reel reversing valve is connected to the reel lifting mechanism via an oil pipe, and a hydraulically controlled check valve and a first throttle valve are connected in series on the oil pipe.

[0007] The safety valves include a header safety valve and a grain unloading and reel safety valve. The header safety valve is connected to the header reversing valve and the diverter valve via oil pipes. The grain unloading and reel safety valve is connected to the grain unloading reversing valve and the diverter valve via oil pipes. The grain unloading reversing valve is connected to the reel reversing valve via an oil pipe. The oil outlets of both the header safety valve and the grain unloading and reel safety valve are connected to the oil return line via oil pipes. Both the header reversing valve and the reel reversing valve are connected to the oil return line via oil pipes.

[0008] As a further embodiment of this utility model, a second throttle valve is also included. The second throttle valve is respectively installed on one side of the header reversing valve, the unloading reversing valve, and the reel reversing valve. The second throttle valve located on the header reversing valve side is connected to the header reversing valve, the hydraulic control check valve, and the return oil line through oil pipes. The second throttle valve located on the unloading reversing valve side is connected to the unloading reversing valve, the hydraulic control check valve, and the return oil line through oil pipes. The second throttle valve located on the reel reversing valve side is connected to the reel reversing valve, the hydraulic control check valve, and the return oil line through oil pipes.

[0009] This utility model provides a harvester valve assembly, which has the following advantages:

[0010] The hydraulic system flow is divided into two by a synchronous flow divider valve, unaffected by external load; each path is equipped with a safety valve, and the pressure is set separately according to the actual needs of each part of the machine, reducing energy consumption and heat generation; the reasonable design of the second throttle valve can reduce power output and heat generation; this valve group is energy-saving and low-cost, reduces energy consumption and heat generation, and is easy to operate; moreover, this valve group truly achieves synchronous operation of functional actions. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 1. Diverter valve; 2. Header reversing valve; 3. Unloading reversing valve; 4. Reel reversing valve; 5. Header safety valve; 6. Unloading and reel safety valves; 7. First throttle valve; 8. Second throttle valve; 9. Hydraulic check valve; 10. Oil supply line; 11. Oil return line; 12. Header lifting mechanism; 13. Unloading lifting mechanism; 14. Reel lifting mechanism. Detailed Implementation

[0014] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0015] See Figure 1The present invention provides a harvester valve group including a diverter valve 1, a reversing valve and a safety valve. One end of the diverter valve 1 is connected to the oil supply pipeline 10 and diverts the incoming hydraulic oil.

[0016] The reversing valves include a header reversing valve 2, a grain unloading reversing valve 3, and a reel reversing valve 4. The header reversing valve 2 is connected to the header lifting mechanism 12 via an oil pipe, and a hydraulic control check valve 9 and a first throttle valve 7 are connected in series on the cylinder. The grain unloading reversing valve 3 is connected to the grain unloading lifting mechanism 13 via an oil pipe, and a hydraulic control check valve 9 and a first throttle valve 7 are connected in series on the cylinder. The reel reversing valve 4 is connected to the reel lifting mechanism 14 via an oil pipe, and a hydraulic control check valve 9 and a first throttle valve 7 are connected in series on the oil pipe.

[0017] The safety valves include a header safety valve 5 and a grain unloading and reel safety valve 6. The header safety valve 5 is connected to the header reversing valve 2 and the diverter valve 1 via oil pipes. The grain unloading and reel safety valve 6 is connected to the grain unloading reversing valve 3 and the diverter valve 1 via oil pipes. The grain unloading reversing valve 3 is connected to the reel reversing valve 4 via oil pipes. The oil outlets of both the header safety valve 5 and the grain unloading and reel safety valve 6 are connected to the return oil line 11 via oil pipes. Both the header reversing valve 2 and the reel reversing valve 4 are connected to the return oil line 11 via oil pipes.

[0018] It also includes a second throttle valve 8, which is respectively installed on one side of the header reversing valve 2, the unloading reversing valve 3, and the reel reversing valve 4. The second throttle valve 8 located on the side of the header reversing valve 2 is connected to the header reversing valve 2, the hydraulic control check valve 9, and the return oil line 11 through oil pipes. The second throttle valve 8 located on the side of the unloading reversing valve 3 is connected to the unloading reversing valve 3, the hydraulic control check valve 9, and the return oil line 11 through oil pipes. The second throttle valve 8 located on the side of the reel reversing valve 4 is connected to the reel reversing valve 4, the hydraulic control check valve 9, and the return oil line 11 through oil pipes. The reasonable design of the second throttle valve 8 can reduce power output and heat generation.

[0019] In operation, this invention delivers hydraulic oil from the oil tank to the diversion valve 1 via the oil supply line 10. The diversion valve 1 then distributes the hydraulic oil to the header reversing valve 2, header safety valve 5, unloading reversing valve 3, reel reversing valve 4, and unloading and reel safety valve 6, respectively. Individual pressures are set for each part of the machine according to their specific needs, reducing energy consumption and heat generation. The hydraulic oil is then delivered to the header lifting mechanism 12 via the header reversing valve 2, to the unloading lifting mechanism 13 via the unloading reversing valve 3, and to the reel lifting mechanism 14 via the reel reversing valve 4, thereby controlling the operation of the header lifting mechanism 12, unloading lifting mechanism 13, and reel lifting mechanism 14.

[0020] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A harvester valve assembly, characterized in that, It includes a flow divider valve (1), a directional valve and a safety valve. One end of the flow divider valve (1) is connected to the oil supply line (10) and divides the incoming hydraulic oil. The reversing valves include a header reversing valve (2), a grain unloading reversing valve (3), and a reel reversing valve (4). The header reversing valve (2) is connected to the header lifting mechanism (12) via an oil pipe, and a hydraulic control check valve (9) and a first throttle valve (7) are connected in series on the cylinder. The grain unloading reversing valve (3) is connected to the grain unloading lifting mechanism (13) via an oil pipe, and a hydraulic control check valve (9) and a first throttle valve (7) are connected in series on the cylinder. The reel reversing valve (4) is connected to the reel lifting mechanism (14) via an oil pipe, and a hydraulic control check valve (9) and a first throttle valve (7) are connected in series on the oil pipe. The safety valves include a header safety valve (5) and a grain unloading and reel safety valve (6). The header safety valve (5) is connected to the header reversing valve (2) and the diverter valve (1) via oil pipes. The grain unloading and reel safety valve (6) is connected to the grain unloading reversing valve (3) and the diverter valve (1) via oil pipes. The grain unloading reversing valve (3) is connected to the reel reversing valve (4) via oil pipes. The oil outlets of the header safety valve (5) and the grain unloading and reel safety valve (6) are both connected to the return oil line (11) via oil pipes. The header reversing valve (2) and the reel reversing valve (4) are both connected to the return oil line (11) via oil pipes.

2. A harvester valve assembly according to claim 1, characterized in that, It also includes a second throttle valve (8), which is respectively installed on one side of the header reversing valve (2), the unloading reversing valve (3) and the reel reversing valve (4). The second throttle valve (8) located on the side of the header reversing valve (2) is connected to the header reversing valve (2), the hydraulic control check valve (9) and the return oil line (11) through oil pipes. The second throttle valve (8) located on the side of the unloading reversing valve (3) is connected to the unloading reversing valve (3), the hydraulic control check valve (9) and the return oil line (11) through oil pipes. The second throttle valve (8) located on the side of the reel reversing valve (4) is connected to the reel reversing valve (4), the hydraulic control check valve (9) and the return oil line (11) through oil pipes.

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