Unloading and throwing roller motor hydraulic system for corn machine and corn machine

Abstract

The utility model provides a grain unloading and throwing roller motor hydraulic system for a corn machine and the corn machine, the structure of the grain unloading and throwing roller motor hydraulic system for the corn machine comprises a grain unloading oil cylinder used for driving a grain bin to overturn and withdraw; the throwing roller motor is used for driving the throwing roller to move; the electromagnetic multi-way valve is connected with the grain unloading oil cylinder and the throwing roller motor; the hydraulic pump is connected with the electromagnetic multi-way valve through a pipeline; and the oil tank is connected with the electromagnetic multi-way valve and the hydraulic pump through pipelines. The unloading and throwing roller motor hydraulic system for the corn machine and the corn machine can solve the problems that according to an existing throwing roller hydraulic system, a hydraulic motor is driven by an independent hydraulic pump, so that the cost of a whole vehicle is increased, and the complexity of the hydraulic system is increased.

Description

Technical Field

[0001] The present application relates to the technical field of corn harvester hydraulic systems, and in particular to a grain unloading and throwing roller motor hydraulic system for a corn harvester and a corn harvester. Background Art

[0002] The grain unloading hydraulic system and the throwing roller hydraulic system are both important components of the corn machine hydraulic system. At present, the throwing roller hydraulic system in the corn machine hydraulic system is generally driven by a separate hydraulic pump to drive the hydraulic motor, which increases the cost of the vehicle and the complexity of the hydraulic system.

[0003] Therefore, there is an urgent need for a new corn machine hydraulic system to simplify the overall complexity of the corn machine hydraulic system and reduce the setting cost of the throwing roller hydraulic system. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a grain unloading and throwing roller motor hydraulic system and a corn harvester for a corn harvester, so as to solve the problem that the existing throwing roller hydraulic system is driven by a separate hydraulic pump, which increases the cost of the entire vehicle and the complexity of the hydraulic system.

[0005] According to the first aspect of the utility model, a grain unloading and throwing roller motor hydraulic system for a corn harvester is provided, wherein the grain unloading and throwing roller motor hydraulic system for the corn harvester includes: a grain unloading oil cylinder, used to drive the grain bin to flip and retract; a throwing roller motor, used to drive the throwing roller to move; an electromagnetic multi-way valve, connected to the grain unloading oil cylinder and the throwing roller motor; a hydraulic pump, connected to the electromagnetic multi-way valve through a pipeline; and an oil tank, connected to the electromagnetic multi-way valve and the hydraulic pump through a pipeline.

[0006] Preferably, the electromagnetic multi-way valve includes an oil inlet, an oil return port, a first connecting port and a second connecting port, the first connecting port and the second connecting port are connected to the grain unloading oil cylinder, the oil inlet is connected to the hydraulic pump, and the oil return port is connected to the oil tank through a pipeline.

[0007] Preferably, the electromagnetic multi-way valve is provided with a three-position four-way reversing valve and a first two-position two-way valve, the hydraulic pump is connected to the three-position four-way reversing valve, the three-position four-way reversing valve is connected to the grain unloading oil cylinder, and the first two-position two-way valve is connected to the three-position four-way reversing valve.

[0008] Preferably, the electromagnetic multi-way valve further includes a relief valve, and the relief valve is connected in parallel with the first two-position two-way valve.

[0009] Preferably, the electromagnetic multi-way valve further comprises a second two-position two-way valve, and the second two-position two-way valve is connected in parallel with the first two-position two-way valve.

[0010] Preferably, the throwing roller motor is connected to the second two-position two-way valve.

[0011] Preferably, the first end of the first two-position two-way valve is connected to the first end of the second two-position two-way valve, the second end of the second two-position two-way valve is connected to the first end of the throwing roller motor, and the second end of the throwing roller motor is connected to the second end of the first two-position two-way valve.

[0012] Preferably, an oil suction filter is provided between the hydraulic pump and the oil tank.

[0013] Preferably, a one-way speed regulating valve is provided between the first connecting port of the electromagnetic multi-way valve and the grain unloading oil cylinder.

[0014] According to a second aspect of the utility model, a corn harvester is provided, wherein the corn harvester includes the grain unloading and throwing roller motor hydraulic system for the corn harvester as described above.

[0015] The grain unloading and throwing roller motor hydraulic system and corn harvester of the utility model embodiment, wherein the grain unloading oil cylinder is used to drive the grain bin to flip and retract, and the throwing roller motor is used to drive the throwing roller to move. The electromagnetic multi-way valve is connected to the grain unloading oil cylinder and the throwing roller motor, that is, the grain unloading oil cylinder and the throwing roller motor are controlled by the same electromagnetic multi-way valve. The hydraulic pump is connected to the electromagnetic multi-way valve through a pipeline. Since the throwing roller motor only needs to rotate in one direction and rotates to work during harvesting, it will not move at the same time as the grain unloading oil cylinder and there is no mutual influence. Therefore, only one hydraulic pump can be used to drive the grain unloading oil cylinder and the throwing roller motor to work. The oil tank is connected to the electromagnetic multi-way valve and the hydraulic pump through a pipeline for oil supply. In this way, it can effectively solve the problem that the existing throwing roller hydraulic system is driven by a separate hydraulic pump to drive the hydraulic motor, which increases the cost of the whole vehicle and the complexity of the hydraulic system.

[0016] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of a hydraulic system of a grain unloading and throwing roller motor for a corn machine according to the utility model.

[0019] Figure markings: 1-grain and oil unloading cylinder; 2-throwing roller motor; 3-electromagnetic multi-way valve; 30-three-position four-way reversing valve; 3001-a1 electromagnetic coil; 3002-b1 electromagnetic coil; 31-first two-position two-way valve; 32-second two-position two-way valve; 33-unloading valve; 301-oil inlet; 302-oil return port; 303-first connecting port; 304-second connecting port; 4-hydraulic pump; 5-oil tank; 6-oil suction filter; 7-one-way speed regulating valve. DETAILED DESCRIPTION

[0020] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0021] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0022] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0023] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0024] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0025] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0026] The terms used herein are only used to describe various examples and are not used to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprising" and "having" list the existence of the stated features, quantities, operations, components, elements and / or their combinations, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0027] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0028] The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0029] like Figure 1As shown, according to the first aspect of the utility model, a grain unloading and throwing roller motor hydraulic system for a corn harvester is provided, and the grain unloading and throwing roller motor hydraulic system for the corn harvester includes a grain unloading cylinder 1, a throwing roller motor 2, an electromagnetic multi-way valve 3, a hydraulic pump 4 and an oil tank 5.

[0030] In the following description, reference will be made to Figure 1 The specific structure of the above components of the hydraulic system of the grain unloading and throwing roller motor for the corn harvester and the connection relationship of the above components are specifically described.

[0031] like Figure 1 As shown, in the embodiment, the grain unloading oil cylinder 1 is used to drive the grain bin to flip and retract, so that the corn machine can realize the operation of unloading grain. The throwing roller motor 2 is used to drive the throwing roller to move. The electromagnetic multi-way valve 3 can be connected to the grain unloading oil cylinder 1 and the throwing roller motor 2, that is, the grain unloading oil cylinder 1 and the throwing roller motor 2 are controlled by the same electromagnetic multi-way valve 3. The hydraulic pump 4 can be connected to the electromagnetic multi-way valve 3 through a pipeline. Since the throwing roller motor 2 only needs to rotate in one direction and rotates to work during harvesting, the throwing roller motor 2 and the grain unloading oil cylinder 1 will not act at the same time, and there is no mutual influence, that is, the driving of the grain unloading oil cylinder 1 and the throwing roller motor 2 can be realized only by the hydraulic pump 4. The oil tank 5 can be connected to the electromagnetic multi-way valve 3 and the hydraulic pump 4 through a pipeline for oil supply. In this way, the hydraulic pump 4 can drive the throwing roller motor 2 and the grain unloading oil cylinder 1, so as to reduce the cost of the whole vehicle and simplify the hydraulic system of the corn machine.

[0032] Preferably, Figure 1 As shown, in the embodiment, the electromagnetic multi-way valve 3 may include an oil inlet 301, an oil return port 302, a first connection port 303 and a second connection port 304. Specifically, the first connection port 303 and the second connection port 304 may be the reversing port A and the reversing port B of the electromagnetic multi-way valve 3, the oil inlet 301 may be the oil inlet P of the electromagnetic multi-way valve 3, and the oil return port 302 may be the oil return port T of the electromagnetic multi-way valve 3. The first connection port 303 and the second connection port 304 of the electromagnetic multi-way valve 3 may be connected to the grain unloading oil cylinder 1 through a pipeline. The oil inlet 301 of the electromagnetic multi-way valve 3 may be connected to the hydraulic pump 4 through a pipeline. The oil return port 302 of the electromagnetic multi-way valve 3 may be connected to the oil tank 5 through a pipeline.

[0033] More preferably, Figure 1As shown, in the embodiment, a three-position four-way reversing valve 30 and a first two-position two-way valve 31 may be provided in the electromagnetic multi-way valve 3. Specifically, the three-position four-way reversing valve 30 may be connected to the hydraulic pump 4, and the three-position four-way reversing valve 30 may be connected to the grain unloading oil cylinder 1. The first two-position two-way valve 31 is connected to the three-position four-way reversing valve 30. The combined operation of the first two-position two-way valve 31 and the three-position four-way reversing valve 30 realizes the turning and retraction of the granary. Such a setting can simplify the connection structure, facilitate installation and maintenance, and reduce costs.

[0034] Preferably, Figure 1 As shown, in the embodiment, the electromagnetic multi-way valve 3 may also be provided with a relief valve 33. Preferably, the relief valve 33 may be provided in parallel with the first two-position two-way valve 31, that is, both ends of the relief valve 33 are connected with both ends of the first two-position two-way valve 31. Such a setting can prevent system overload and improve system stability and reliability.

[0035] More preferably, Figure 1 As shown, in the embodiment, the electromagnetic multi-way valve 3 may also be provided with a second two-position two-way valve 32. Preferably, the second two-position two-way valve 32 may also be connected in parallel with the first two-position two-way valve 31. Specifically, the throwing roller motor 2 may be connected to the second two-position two-way valve 32. The first end of the first two-position two-way valve 31 (which may be Figure 1 The upper end shown in FIG. 1 and the first end of the second two-position two-way valve 32 may be as follows: Figure 1 The second end of the second two-position two-way valve 32 (which may be as shown in Figure 1 ) and the first end of the throwing roller motor 2 (which can be Figure 1 The second end of the throwing roller motor 2 (which can be as shown in Figure 1 ) and the second end of the first two-position two-way valve 31 (which can be Figure 1 The throwing roller motor 2 and the second two-position two-way valve 32 are connected in parallel to the grain unloading hydraulic system of the corn machine.

[0036] In addition, preferably, Figure 1 As shown, in the embodiment, an oil suction filter 6 may be provided between the hydraulic pump 4 and the oil tank 5, that is, the hydraulic pump 4 is connected to the oil suction filter 6 through a pipeline, and the oil suction filter 6 is connected to the oil tank 5. The oil suction filter 6 is used to provide clean hydraulic oil for the hydraulic pump 4. A one-way speed regulating valve 7 may also be provided between the first connecting port 303 of the electromagnetic multi-way valve 3 and the grain unloading oil cylinder 1 for one-way speed regulation.

[0037] like Figure 1As shown, the specific operation of the hydraulic system of the grain unloading and throwing roller motor for the corn machine is as follows:

[0038] When the grain box turns over during the process of controlling the grain unloading action, the first two-position two-way valve 31 is energized, and the b1 electromagnetic coil 3002 of the three-position four-way reversing valve 30 of the electromagnetic multi-way valve 3 receives the control signal, and the electromagnetic valve works in the right position. The hydraulic oil enters the rodless cavity of the grain unloading oil cylinder 1 through the second connection port 304 of the three-position four-way reversing valve 30, driving the grain box to turn over. The hydraulic oil in the rod cavity of the grain unloading oil cylinder 1 flows into the three-position four-way reversing valve 30 through the first connection port 303, and then flows back to the oil tank 5 through the return oil port 302.

[0039] After the grain is unloaded, when the grain box is controlled to be retracted, the first two-position two-way valve 31 is energized, and the a1 electromagnetic coil 3001 of the three-position four-way reversing valve 30 of the electromagnetic multi-way valve 3 receives the control signal, and the electromagnetic valve works in the left position. The hydraulic oil enters the rod chamber of the grain unloading oil cylinder 1 through the first connection port 303 of the three-position four-way reversing valve 30, driving the grain box to achieve the retraction action. The hydraulic oil in the rodless chamber of the grain unloading oil cylinder 1 flows into the three-position four-way reversing valve 30 through the second connection port 304, and then flows back to the oil tank 5 through the return oil port 302.

[0040] When the throwing roller motor 2 is controlled to rotate, the first two-position two-way valve 31 and the second two-position two-way valve 32 are energized, and the hydraulic oil in the oil tank 5 enters the electromagnetic multi-way valve 3 through the oil inlet 301, flows through the second two-position two-way valve 32, and enters the throwing roller motor 2, thereby driving the throwing roller motor 2 to rotate. Finally, the hydraulic oil flows back to the oil tank 5 from the return oil port 302 of the electromagnetic multi-way valve 3.

[0041] In addition, if Figure 1 As shown, according to the second aspect of the utility model, a corn harvester is provided, and the corn harvester includes the grain unloading and throwing roller motor hydraulic system for the corn harvester as described above.

[0042] During use, the grain unloading oil cylinder 1 is used to drive the grain bin to flip and retract, so that the corn machine can realize the grain unloading operation. The throwing roller motor 2 is used to drive the throwing roller to move. The electromagnetic multi-way valve 3 is connected to the grain unloading oil cylinder 1 and the throwing roller motor 2, and the hydraulic pump 4 is connected to the electromagnetic multi-way valve 3 through a pipeline. Since the throwing roller motor 2 only needs to rotate in one direction and rotates to work during harvesting, the throwing roller motor 2 and the grain unloading oil cylinder 1 will not move at the same time, and there is no mutual influence, that is, the hydraulic pump 4 alone can drive the grain unloading oil cylinder 1 and the throwing roller motor 2 to work. This arrangement allows a single hydraulic pump 4 to drive the throwing roller motor 2 and the grain unloading oil cylinder 1, thereby reducing the cost of the entire vehicle and simplifying the hydraulic system of the corn machine.

[0043] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A hydraulic system for a grain unloading and throwing roller motor for a corn harvester, characterized in that: The hydraulic system of the unloading and throwing roller motor for the corn machine includes: Grain unloading oil cylinder, used to drive the grain bin to flip and retract; A throwing roller motor, used for driving the throwing roller to move; An electromagnetic multi-way valve connected to the grain unloading oil cylinder and the throwing roller motor; A hydraulic pump connected to the electromagnetic multi-way valve through a pipeline; and The oil tank is connected to the electromagnetic multi-way valve and the hydraulic pump through pipelines.

2. The hydraulic system for the unloading and throwing roller motor of corn harvester according to claim 1 is characterized in that: The electromagnetic multi-way valve includes an oil inlet, an oil return port, a first connecting port and a second connecting port. The first connecting port and the second connecting port are connected to the grain unloading oil cylinder, the oil inlet is connected to the hydraulic pump, and the oil return port is connected to the oil tank through a pipeline.

3. The hydraulic system for the unloading and throwing roller motor of corn harvester according to claim 2 is characterized in that: The electromagnetic multi-way valve is provided with a three-position four-way reversing valve and a first two-position two-way valve. The hydraulic pump is connected to the three-position four-way reversing valve, the three-position four-way reversing valve is connected to the grain unloading oil cylinder, and the first two-position two-way valve is connected to the three-position four-way reversing valve.

4. The hydraulic system for the unloading and throwing roller motor for corn harvester according to claim 3 is characterized in that: The electromagnetic multi-way valve further comprises a relief valve, and the relief valve is connected in parallel with the first two-position two-way valve.

5. The hydraulic system for the unloading and throwing roller motor for corn harvester according to claim 4 is characterized in that: The electromagnetic multi-way valve further comprises a second two-position two-way valve, and the second two-position two-way valve is connected in parallel with the first two-position two-way valve.

6. The hydraulic system for the unloading and throwing roller motor for corn harvester according to claim 5, characterized in that: The throwing roller motor is connected to the second two-position two-way valve.

7. The hydraulic system for the unloading and throwing roller motor of the corn harvester according to claim 6 is characterized in that: The first end of the first two-position two-way valve is connected to the first end of the second two-position two-way valve, the second end of the second two-position two-way valve is connected to the first end of the throwing roller motor, and the second end of the throwing roller motor is connected to the second end of the first two-position two-way valve.

8. The hydraulic system for the unloading and throwing roller motor of corn harvester according to claim 1, characterized in that: An oil suction filter is arranged between the hydraulic pump and the oil tank.

9. The hydraulic system for the unloading and throwing roller motor for corn harvester according to claim 2, characterized in that: A one-way speed regulating valve is arranged between the first connecting port of the electromagnetic multi-way valve and the grain unloading oil cylinder.

10. A corn machine, characterized in that: The corn mill includes the grain unloading and throwing roller motor hydraulic system for the corn mill according to any one of claims 1 to 9.

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