A hydraulic pump group system for a sprayer and a sprayer

Abstract

The utility model relates to a spray machine technical field especially, it relates to a kind of hydraulic pump group system and spray machine for spray machine, the structure of hydraulic pump group system for spray machine includes engine;Transfer case, with the engine transmission connection;Walking pump, with the transfer case transmission connection, the walking pump is communicated in the walking component of the spray machine;Multifunctional constant pressure pump, with the transfer case transmission connection, the multifunctional constant pressure pump is communicated in the steering component, wheel track adjusting component and spray pole action component of the spray machine;And pesticide pump, with the multifunctional constant pressure pump transmission connection, the pesticide pump is communicated in the pesticide component of the spray machine.The hydraulic pump group system and spray machine for spray machine can solve the function of the existing spray machine is relatively single, lead to user when using there is the problem of inconvenience.

Description

Technical Field

[0001] This application relates to the field of sprayer technology, and in particular to a hydraulic pump system for a sprayer and a sprayer. Background Technology

[0002] Agricultural mechanization reduces the workload of workers while improving efficiency and quality, representing a trend in agricultural development. As farmland is increasingly used for large-scale planting, the demand for large agricultural machinery is growing, particularly for spraying pesticides on crops.

[0003] There are many types of sprayers available, but their functions are relatively limited, which causes inconvenience for users and makes it difficult to meet their needs. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a hydraulic pump assembly system and a sprayer for a sprayer, so as to solve the problem that the existing sprayers have relatively simple functions, which causes inconvenience to users.

[0005] According to a first aspect of this utility model, a hydraulic pump assembly system for a sprayer is provided, wherein the hydraulic pump assembly system for the sprayer includes: an engine; a transfer case, drivenly connected to the engine; a travel pump, drivenly connected to the transfer case, the travel pump being connected to the travel assembly of the sprayer; a multi-functional constant pressure pump, drivenly connected to the transfer case, the multi-functional constant pressure pump being connected to the steering assembly, wheelbase adjustment assembly, and boom actuation assembly of the sprayer; and a pesticide spraying pump, drivenly connected to the multi-functional constant pressure pump, the pesticide spraying pump being connected to the pesticide spraying assembly of the sprayer.

[0006] Preferably, the transfer case is provided with a first transmission gear, a second transmission gear, and a third transmission gear. The first transmission gear is connected to the flywheel of the engine via a splined shaft. The second and third transmission gears are respectively located on both sides of the first transmission gear and mesh with the first transmission gear. The second transmission gear is connected to the travel pump via a spline, and the third transmission gear is connected to the multi-functional constant pressure pump via a spline.

[0007] Preferably, the hydraulic pump system for the sprayer further includes a hydraulic oil tank, which is connected to the traveling pump, the multi-functional constant pressure pump, and the spraying pump via multiple oil suction pipes.

[0008] Preferably, the engine is located on the first side of the transfer case, the travel pump, the multi-functional constant pressure pump and the spraying pump are located on the second side of the transfer case, the travel pump and the multi-functional constant pressure pump are arranged side by side, and the hydraulic oil tank is located above the travel pump and the multi-functional constant pressure pump.

[0009] Preferably, the walking assembly includes outriggers, hydraulic motors, and support wheels. There are multiple outriggers, each equipped with a hydraulic motor. The hydraulic motors are connected to the support wheels via a reducer. The hydraulic motors are connected to the walking pump via an oil circuit. A parking brake is installed within the reducer. When pressurized oil is supplied to the parking brake, the parking brake is released from its locked state. When pressurized oil is released from the parking brake, the parking brake is locked.

[0010] Preferably, the steering assembly includes a steering gear, a steering column, a steering wheel, and a steering cylinder. The multi-functional constant pressure pump is connected to the steering gear via a priority valve, and the steering gear is connected to the steering wheel via the steering column. When the steering wheel is rotated in a first direction, pressurized oil flows through the first port of the steering gear to the rod chamber of the steering cylinder. When the steering wheel is rotated in a second direction, pressurized oil flows through the second port of the steering gear to the rodless chamber of the steering cylinder.

[0011] Preferably, the steering assembly includes a wheel track adjustment solenoid valve and a wheel track adjustment cylinder, and the multi-functional constant pressure pump is connected to the wheel track adjustment cylinder through the wheel track adjustment solenoid valve; when the first end of the wheel track adjustment solenoid valve is energized, pressurized oil flows through the wheel track adjustment solenoid valve to the rodless chamber of the wheel track adjustment cylinder, and the support wheels of the sprayer move in a direction away from each other; when the second end of the wheel track adjustment solenoid valve is energized, pressurized oil flows through the wheel track adjustment solenoid valve to the rod chamber of the wheel track adjustment cylinder, and the support wheels of the sprayer move in a direction close to each other.

[0012] Preferably, the spray boom actuation assembly includes a spray frame, a spray boom solenoid valve group, and multiple actuation cylinders. The multi-functional constant pressure pump is connected to the multiple actuation cylinders through the spray boom solenoid valve group, and the multiple actuation cylinders are connected to the spray frame to drive the spray frame to perform actuation.

[0013] Preferably, the spraying assembly includes a spraying motor and a spraying pump. The spraying pump is connected to the spraying motor via an oil circuit. The spraying motor is driven by the spraying pump. After the spraying pump is started, it can deliver the liquid medicine in the sprayer's tank to multiple nozzles on the sprayer's spray bar.

[0014] According to a second aspect of the present invention, a sprayer is provided, wherein the sprayer includes a hydraulic pump assembly system for a sprayer as described above.

[0015] This utility model discloses a hydraulic pump system and a sprayer for a sprayer. The engine is driven by a transfer case, and the travel pump is also driven by the transfer case and connected to the travel assembly of the sprayer. A multi-functional constant pressure pump is driven by the transfer case and connected to the steering assembly, wheelbase adjustment assembly, and boom actuation assembly of the sprayer. A pesticide spraying pump is driven by the multi-functional constant pressure pump and connected to the pesticide spraying assembly of the sprayer. This configuration enables the hydraulic pump system to realize the travel, steering, wheelbase adjustment, boom actuation, and pesticide spraying functions of the sprayer, effectively solving the problem of the limited functionality of existing sprayers, which causes inconvenience for users.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the hydraulic pump unit system for a sprayer according to the present invention from a first angle.

[0019] Figure 2 This is a schematic diagram from a second angle of the hydraulic pump unit system for a sprayer according to the present invention.

[0020] Figure 3 This is a schematic diagram of a second-angle portion of the hydraulic pump unit system for a sprayer according to the present invention.

[0021] Figure 4 This is a schematic diagram from the third angle of the hydraulic pump unit system for the sprayer according to this utility model.

[0022] Attached reference numerals: 1-Hydraulic oil tank; 2-Suction pipe; 3-Transfer box; 4-Travel pump; 5-Engine; 6-Multi-functional constant pressure pump; 7-Spraying pump. Detailed Implementation

[0023] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0024] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0025] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0026] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0027] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0028] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that 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 relation terms used herein will be interpreted accordingly.

[0029] The terminology used herein is for the purpose of describing various examples only and is not intended to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0030] Variations in the shapes shown in the accompanying 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 accompanying drawings, but include changes in shape that may occur during manufacturing.

[0031] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0032] like Figures 1 to 4 As shown, according to a first aspect of the present invention, a hydraulic pump assembly system for a sprayer is provided, the hydraulic pump assembly system for a sprayer including an engine 5, a transfer case 3, a travel pump 4, a multi-functional constant pressure pump 6, and a spraying pump 7.

[0033] In the following description, reference will be made to Figures 1 to 4 The specific structure of the aforementioned components of the hydraulic pump unit system used in the sprayer and the connection relationship of the aforementioned components are described in detail.

[0034] like Figures 1 to 4As shown, in this embodiment, the engine 5 provides power. The transfer case 3 is drive-connected to the engine 5, allowing power from the engine 5 to be transmitted to the transfer case 3. The travel pump 4 is drive-connected to the transfer case 3, enabling the transfer case 3 to drive the travel pump 4 to rotate. The travel pump 4 is connected to the travel assembly of the sprayer. The multi-functional constant pressure pump 6 is drive-connected to the transfer case 3, enabling the transfer case 3 to drive the multi-functional constant pressure pump 6 to rotate. The multi-functional constant pressure pump 6 is connected to the steering assembly, wheelbase adjustment assembly, and boom actuation assembly of the sprayer. The pesticide spraying pump 7 is drive-connected to the multi-functional constant pressure pump 6, enabling the multi-functional constant pressure pump 6 to drive the pesticide spraying pump 7 to rotate. The pesticide spraying pump 7 is connected to the pesticide spraying assembly of the sprayer. This configuration enables the hydraulic pump system to realize the travel, steering, wheelbase adjustment, boom actuation, and pesticide spraying functions of the sprayer, thereby greatly increasing the versatility of the sprayer's functions to suit various working conditions required by the user.

[0035] Preferred, such as Figures 1 to 4 As shown in the embodiment, the transfer case 3 may be equipped with a first transmission gear, a second transmission gear, and a third transmission gear. The first transmission gear can be connected to the flywheel of the engine 5 via a splined shaft, thereby transmitting the output torque of the engine 5. The second and third transmission gears can be respectively disposed on opposite sides of the first transmission gear. The second and third transmission gears simultaneously mesh with the first transmission gear, allowing them to rotate simultaneously in opposite directions. The second transmission gear can be splined connected to the travel pump 4, thereby outputting power to the travel pump 4. The third transmission gear can be splined connected to the multi-functional constant pressure pump 6, thereby outputting power to the multi-functional constant pressure pump 6. Furthermore, a spline can be built into the rear end of the multi-functional constant pressure pump 6, allowing the spray pump 7 to be splined connected to the multi-functional constant pressure pump 6, thus achieving synchronous rotation.

[0036] In addition, preferred, such as Figures 1 to 4 As shown, in this embodiment, the hydraulic pump system for the sprayer may further include a hydraulic oil tank 1, which stores pressurized oil. The hydraulic oil tank 1 can be connected to the traveling pump 4, the multi-functional constant pressure pump 6, and the spraying pump 7 via multiple suction pipes 2. Specifically, in this embodiment, the number of suction pipes 2 can be three. The first suction pipe (which may be located on the first side) is... Figure 4 The first oil suction pipe (shown on the left) can be connected to the oil inlet of the multi-functional constant pressure pump 6; the second pipe (which can be as shown on the left) can be connected to the oil inlet of the multi-functional constant pressure pump 6. Figure 4 The second oil suction pipe (shown on the right) can be connected to the oil inlet of the travel pump 4; located between the first and second oil suction pipes (which can be located as shown on the right). Figure 4The third oil suction pipe (shown on the middle side) can be connected to the oil inlet of the spray pump 7, thereby delivering pressurized oil to the multi-functional constant pressure pump 6, the traveling pump 4 and the spray pump 7.

[0037] Further optimized, such as Figures 1 to 4 As shown, in this embodiment, the engine 5 can be connected to the first side of the transfer case 3, and the travel pump 4, the multi-functional constant pressure pump 6, and the spraying pump 7 can be connected to the second side of the transfer case 3. The first side and the second side of the transfer case 3 can be opposite each other. Furthermore, the travel pump 4 can be arranged side-by-side with the multi-functional constant pressure pump 6, and the spraying pump 7 is connected to the end of the multi-functional constant pressure pump 6 furthest from the transfer case 3. The hydraulic oil tank 1 can be located above the travel pump 4 and the multi-functional constant pressure pump 6. This arrangement makes the hydraulic pump system more compact, thereby improving space utilization.

[0038] Preferred, such as Figures 1 to 4 As shown in the embodiment, the walking assembly includes outriggers, hydraulic motors, and support wheels. Multiple outriggers can be present, each equipped with a hydraulic motor. Preferably, there are four outriggers. The hydraulic motors are connected to the support wheels via a reducer, driving the sprayer to move. The hydraulic motors are connected to the walking pump 4 via an oil circuit. The walking pump 4 can be electrically proportionally controlled; a control handle is located in the sprayer's cab. Pushing the handle forward moves the sprayer forward, and pushing it backward moves it backward. The sprayer's speed can be controlled by the angle of the control handle. A parking brake can be installed within the reducer. When the sprayer starts, pressing the parking brake release button in the cab allows pressurized oil to flow into the parking brake. With pressurized oil flowing into the parking brake, it is released, and the sprayer is ready to move. When the sprayer needs to stop, pressing the parking brake button in the opposite direction releases the pressurized oil. When the parking brake releases the pressurized oil, the parking brake is locked under the action of spring force.

[0039] Preferred, such as Figures 1 to 4As shown, in this embodiment, the steering assembly may include a steering gear, a steering column, a steering wheel, and a steering cylinder. The multi-functional constant pressure pump 6 is connected to the steering gear via a priority valve. The steering gear is mechanically connected to the steering wheel via the steering column. The pressurized oil output from the multi-functional constant pressure pump 6 is first delivered to the priority valve and then to the steering gear. When the steering wheel is turned in a first direction (e.g., left turn), the pressurized oil flows through the first port (e.g., L port) of the steering gear to the rod-side chamber of the steering cylinder. When the steering wheel is turned in a second direction (e.g., right turn), the pressurized oil flows through the second port (e.g., R port) of the steering gear to the rodless chamber of the steering cylinder, thereby actuating the steering mechanism of the sprayer to achieve the steering function of the sprayer.

[0040] Preferred, such as Figures 1 to 4 As shown, in this embodiment, the steering assembly may include a wheel track adjustment solenoid valve and a wheel track adjustment cylinder. The multi-functional constant pressure pump 6 can be connected to the wheel track adjustment cylinder via the wheel track adjustment solenoid valve. When the sprayer needs to extend its wheel track, the first end of the wheel track adjustment solenoid valve is energized; when the sprayer needs to reduce its wheel track, the second end of the wheel track adjustment solenoid valve is energized. Specifically, when the first end of the wheel track adjustment solenoid valve is energized, pressurized oil can flow through the wheel track adjustment solenoid valve to the rodless chamber of the wheel track adjustment cylinder, driving the multiple support wheels of the sprayer to move in opposite directions, thereby extending the wheel track. When the second end of the wheel track adjustment solenoid valve is energized, pressurized oil can flow through the wheel track adjustment solenoid valve to the rod chamber of the wheel track adjustment cylinder, driving the multiple support wheels of the sprayer to move in opposite directions, thereby reducing the wheel track.

[0041] Preferred, such as Figures 1 to 4 As shown in the embodiment, the spray boom actuation assembly may include a spray frame, a spray boom solenoid valve group, and multiple actuating cylinders. The multi-functional constant pressure pump 6 can be connected to the multiple actuating cylinders via the spray boom solenoid valve group. The multiple actuating cylinders can be connected to the spray frame to drive its movement. Specifically, the spray frame's movements may include raising, lowering, contouring, forearm folding, upper arm folding, and angle adjustment. When the spray frame needs to perform a corresponding movement, the operator can hydraulically control the multiple actuating cylinders using multiple function buttons in the cab to achieve the desired action.

[0042] Preferred, such as Figures 1 to 4As shown in the embodiment, the spraying assembly may include a spraying motor and a pesticide pump. The spraying pump 7 is connected to the spraying motor via an oil circuit, and the spraying motor is drive-connected to the pesticide pump, enabling the spraying pump 7 to drive the pesticide pump to rotate. When the pesticide pump starts rotating, it drives the pesticide solution in the sprayer's tank to be delivered to multiple nozzles on the spray bar to spray the solution onto the surface of the crops.

[0043] Furthermore, according to a second aspect of the present invention, a sprayer is provided, the sprayer comprising the hydraulic pump assembly system for a sprayer as described above.

[0044] During operation, the power from engine 5 is transmitted to transfer case 3, which drives the multi-functional constant pressure pump 6 and the travel pump 4 to rotate. The multi-functional constant pressure pump 6 drives the spraying pump 7 to rotate. The travel pump 4 is connected to the travel assembly of the sprayer, the multi-functional constant pressure pump 6 is connected to the steering assembly, wheelbase adjustment assembly, and boom actuation assembly of the sprayer, and the spraying pump 7 is connected to the spraying assembly of the sprayer. This configuration enables the hydraulic pump system to realize the travel, steering, wheelbase adjustment, boom actuation, and spraying functions of the sprayer, thereby greatly increasing the versatility of the sprayer's functions to suit various working conditions required by the user.

[0045] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A hydraulic pump system for a sprayer, installed in the sprayer, characterized in that, The hydraulic pump system for the sprayer includes: engine; The transfer case is connected to the engine drive. A traveling pump is connected to the transfer case via a drive mechanism, and the traveling pump is connected to the traveling assembly of the sprayer; A multi-functional constant pressure pump is connected to the transfer case via a transmission. The multi-functional constant pressure pump is also connected to the steering assembly, wheel track adjustment assembly, and boom actuation assembly of the sprayer. A spraying pump is connected to the multi-functional constant pressure pump, and the spraying pump is connected to the spraying assembly of the sprayer.

2. The hydraulic pump system for a sprayer according to claim 1, characterized in that, The transfer case is equipped with a first transmission gear, a second transmission gear, and a third transmission gear. The first transmission gear is connected to the flywheel of the engine via a splined shaft. The second and third transmission gears are respectively located on both sides of the first transmission gear and mesh with the first transmission gear. The second transmission gear is connected to the travel pump via a spline, and the third transmission gear is connected to the multi-functional constant pressure pump via a spline.

3. The hydraulic pump system for a sprayer according to claim 1, characterized in that, The hydraulic pump system for the sprayer also includes a hydraulic oil tank, which is connected to the traveling pump, the multi-functional constant pressure pump and the spraying pump via multiple oil suction pipes.

4. The hydraulic pump system for a sprayer according to claim 3, characterized in that, The engine is located on the first side of the transfer case, the travel pump, the multi-functional constant pressure pump and the spraying pump are located on the second side of the transfer case, the travel pump and the multi-functional constant pressure pump are arranged side by side, and the hydraulic oil tank is located above the travel pump and the multi-functional constant pressure pump.

5. The hydraulic pump system for a sprayer according to claim 1, characterized in that, The walking assembly includes outriggers, hydraulic motors, and support wheels. There are multiple outriggers, and each outrigger is equipped with a hydraulic motor. The hydraulic motors are connected to the support wheels via a reducer. The hydraulic motors are connected to the walking pump via an oil circuit. A parking brake is installed inside the reducer. When pressurized oil is supplied to the parking brake, the parking brake is released from its locked state; when pressurized oil is released from the parking brake, the parking brake is locked.

6. The hydraulic pump system for a sprayer according to claim 1, characterized in that, The steering assembly includes a steering gear, a steering column, a steering wheel, and a steering cylinder. The multi-functional constant pressure pump is connected to the steering gear through a priority valve, and the steering gear is connected to the steering wheel through the steering column. When the steering wheel is turned in the first direction, pressurized oil flows through the first port of the steering gear to the rod chamber of the steering cylinder; When the steering wheel is turned in the second direction, pressurized oil flows through the second port of the steering gear to the rodless chamber of the steering cylinder.

7. The hydraulic pump system for a sprayer according to claim 1, characterized in that, The steering assembly includes a wheel track adjustment solenoid valve and a wheel track adjustment cylinder, and the multi-functional constant pressure pump is connected to the wheel track adjustment cylinder through the wheel track adjustment solenoid valve; When the first end of the wheel track adjusting solenoid valve is energized, pressurized oil flows through the wheel track adjusting solenoid valve to the rodless chamber of the wheel track adjusting cylinder, and the support wheels of the sprayer move in a direction away from each other; When the second end of the wheel track adjusting solenoid valve is energized, pressurized oil flows through the wheel track adjusting solenoid valve to the rod chamber of the wheel track adjusting cylinder, and the support wheels of the sprayer move in a direction closer to each other.

8. The hydraulic pump system for a sprayer according to claim 1, characterized in that, The spray boom actuation assembly includes a spray frame, a spray boom solenoid valve group, and multiple actuating cylinders. The multi-functional constant pressure pump is connected to the multiple actuating cylinders through the spray boom solenoid valve group, and the multiple actuating cylinders are connected to the spray frame to drive the spray frame to perform actions.

9. The hydraulic pump system for a sprayer according to claim 1, characterized in that, The spraying assembly includes a spraying motor and a spraying pump. The spraying pump is connected to the spraying motor via an oil circuit. The spraying motor and the spraying pump are connected in a driving connection. After the spraying pump is started, it can deliver the liquid medicine in the sprayer's tank to multiple nozzles on the sprayer's spray bar.

10. A sprayer, characterized in that, The sprayer includes a hydraulic pump assembly system for the sprayer according to any one of claims 1 to 9.

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