CN218407969U

CN218407969U - Hydraulic valve system of corn machine

Info

Publication number: CN218407969U
Application number: CN202222535545.5U
Authority: CN
Inventors: 魏中汉
Original assignee: Jiangsu World High Tech Agricultural Equipment Co Ltd
Current assignee: Jiangsu World High Tech Agricultural Equipment Co Ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-01-31
Anticipated expiration: 2032-09-23

Abstract

The utility model relates to an agricultural machinery hydraulic pressure technical field, in particular to hydraulic valve system for corn machine, including advancing the oil pipe way, advance to be equipped with the pump on the oil pipe way, still include a plurality of work valves that are used for controlling the executive component action and be used for controlling the grain valve of unloading that unloads the grain executive component, the work valve with unload and be connected with the oil feed branch road between the grain valve, and unload the grain valve and be equipped with and be used for advancing the position of connection of oil pipe way and oil feed branch road intercommunication, the utility model discloses unloading grain valve block oil duct to present seed grain and carrying out design optimization, changing the meso position function, increasing one way and connect the valve port way, from connecting valve port department and reconnecting the work valve, can save a gear pump and relevant pipeline, save the cost.

Description

Hydraulic valve system of corn machine

Technical Field

The utility model relates to an agricultural machinery hydraulic pressure technical field, in particular to maize machine hydraulic pressure valve system.

Background

The original hydraulic valve control system is used for controlling oil ways of actuating elements such as oil cylinders, motors and the like of a corn machine, two gear pumps are used in an original structure, one gear pump supplies oil to four electromagnetic valves to respectively control lifting of four oil cylinders of a header, a main clutch, a returning machine and a granary, one gear pump supplies oil to a grain unloading valve to control positive and negative rotation of the grain unloading motor, but the actuating elements and the grain unloading motor cannot act simultaneously, and the hydraulic system needs two gear pumps and is high in cost.

SUMMERY OF THE UTILITY MODEL

In order to solve prior art and have the executive component and unload the grain motor and pass through the problem that the pump oil supply is with high costs alone, the utility model provides a thereby the maize machine hydraulic valve system of cost is practiced thrift to executive component and a pump of unloading the grain motor sharing.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a hydraulic valve system of corn machine, is equipped with the pump including advancing oil pipe way on advancing oil pipe way, still includes a plurality of work valves that are used for controlling the execute component action and is used for controlling the grain valve of unloading the execute component, work valve and unload and be connected with the oil feed branch road between the grain valve, and unload the grain valve and be equipped with and be used for advancing the position of connection of oil pipe way and oil feed branch road intercommunication.

Furthermore, when the grain unloading valve is positioned at other working positions except the connecting position, the oil inlet branch is blocked.

Furthermore, the grain unloading executing element comprises a grain unloading motor, and when the grain unloading valve is positioned at the connecting position, the first end and the second end of the grain unloading motor are both connected with an oil return oil tank.

Furthermore, the grain unloading valve at the connecting position is provided with a throttling structure which enables the first end and the second end to slowly return oil. Therefore, oil of the grain unloading motor can not flow back to the oil tank completely, and delay is avoided during grain unloading.

Furthermore, the actuating element comprises an actuating oil cylinder, and the working valves and the actuating oil cylinder are arranged in a one-to-one correspondence mode.

Furthermore, hydraulic control one-way valves are arranged on oil paths connecting the working valves and the execution oil cylinders.

Furthermore, the execution oil cylinder comprises a header oil cylinder, a main clutch oil cylinder, a returning machine oil cylinder and a granary oil cylinder.

Has the beneficial effects that:

the utility model discloses unloading grain valve block oil duct to present seed grain and carrying out design optimization, change the meso-position function, increase one way and connect the valve port oil circuit, connect the work valve again from connecing valve port department, can save a gear pump and relevant pipeline, save the cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a diagram of a hydraulic control system for an implement cylinder of the prior art;

FIG. 2 is a diagram of a hydraulic control system of a grain unloading motor in the prior art;

fig. 3 is a working principle diagram of the hydraulic valve system of the corn harvester of the present invention.

Wherein, 1, advance oil pipe way, 2, working valve, 3, unload the grain valve, 4, oil feed branch road, 5, hydraulically controlled check valve, 6, the unload grain valve of prior art.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of parts and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms do not have special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

Referring to fig. 1-2, the original hydraulic valve control system is used for controlling oil paths of actuating elements such as oil cylinders and motors of a corn harvester, the original structure uses two gear pumps, one gear pump supplies oil to a working valve 2 to respectively control lifting of four oil cylinders of a header, a main clutch, a returning machine and a granary, one gear pump supplies oil to a grain unloading valve 6 in the prior art to control positive and negative rotation of a grain unloading motor, and the cost is high.

As fig. 3, do the utility model discloses a hydraulic valve system for corn machine, including advancing oil pipe way 1, be equipped with the pump on advancing oil pipe way 1, still include a plurality of work valves 2 that are used for controlling the work executive component action and be used for controlling the grain valve 3 of unloading the grain executive component, work valve 2 and unload to be connected with oil feed branch road 4 between the grain valve 3, and unload grain valve 3 and be equipped with and be used for advancing oil pipe way 1 and the hookup location of oil feed branch road 4 intercommunication.

When the grain unloading valve 3 is positioned at other working positions except the connecting position, the oil inlet branch 4 is blocked. In particular, the grain unloading valve 3 is a three-position five-way valve and comprises a port A connected with the first end of a grain unloading actuating element, a port B connected with the second end of the grain unloading actuating element, a port C connected with an oil inlet pipeline, a port D connected with an oil inlet branch 4 and a port E communicated with an oil return oil tank,

the connecting position is positioned at the middle position of the grain unloading valve, when the grain unloading valve 3 is positioned at the middle position, the ports A, B and C are communicated, the ports A to C and the ports B to C are throttled, and the port D is communicated with the port E; when the grain unloading valve 4 is in the left position, the port A is communicated with the port C, the port B is communicated with the port E, and the port D is closed; when the grain unloading valve 5 is positioned at the right position, the port A is communicated with the port E, the port B is communicated with the port C, and the port D is closed.

The working valve 2 is a three-position four-way electromagnetic valve and comprises an F port connected with the first end of the working execution element, a G port connected with the second end of the working execution element, an H port connected with the oil inlet branch 4 and an I port communicated with the oil return tank. When the working valve is in the middle position, the F and the G are both communicated with the port I, and the port H is closed; when the working valve is at the left position, the port F is communicated with the port I, and the port G is communicated with the port H; when the working valve is at the right position, the port F is communicated with the port H, and the port G is communicated with the port I.

The grain unloading actuator comprises a grain unloading motor, and when the grain unloading valve 3 is positioned at the connecting position, the first end and the second end of the grain unloading motor are both connected with an oil return tank. The grain unloading valve 3 at the connection position is provided with a throttling structure which enables the first end and the second end to slowly return oil. The throttle channel is arranged in the valve block oil duct of the unloading valve 3, so that the unloading valve 3 at the connecting position can realize slow oil return, oil of the unloading motor can not flow back to the oil tank completely, and the unloading valve 3 is prevented from delaying the action of the unloading motor after being converted to other positions from the connecting position.

The working execution element comprises execution oil cylinders, and the working valves 2 are arranged in one-to-one correspondence with the execution oil cylinders.

And hydraulic control one-way valves 5 are arranged on oil paths connecting the working valves 2 and the execution oil cylinders. When the working valve is in the middle position, oil of the execution oil cylinder cannot return to the oil tank completely, when oil enters one side of the execution oil cylinder and reaches a certain pressure, the hydraulic control one-way valve 5 is opened, and the oil entering and oil returning of the execution oil cylinder are realized, so that the working execution element is driven to act.

The execution oil cylinder comprises a header oil cylinder, a main clutch oil cylinder, a returning machine oil cylinder, a granary oil cylinder and the like.

Above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be included in the protection scope of the present invention.

Claims

1. The hydraulic valve system of the corn machine is characterized by comprising an oil inlet pipeline (1), wherein a pump is arranged on the oil inlet pipeline (1), the hydraulic valve system further comprises a plurality of working valves (2) used for controlling the action of a working executive element and a grain unloading valve (3) used for controlling the grain unloading executive element, an oil inlet branch (4) is connected between each working valve (2) and each grain unloading valve (3), and each grain unloading valve (3) is provided with a connecting position used for communicating the oil inlet pipeline (1) with the corresponding oil inlet branch (4).

2. A corn cob hydraulic valve system as defined in claim 1, wherein: when the grain unloading valve (3) is positioned at other working positions except the connecting position, the oil inlet branch (4) is blocked.

3. A corn cob hydraulic valve system as defined in claim 1, wherein: the grain unloading execution element comprises a grain unloading motor, and when the grain unloading valve (3) is positioned at the connection position, the first end and the second end of the grain unloading motor are both connected with an oil return oil tank.

4. A corn cob hydraulic valve system as defined in claim 3, wherein: the grain unloading valve (3) at the connection position is provided with a throttling structure which enables the first end and the second end to slowly return oil.

5. A hydraulic valve system for a corn cob-husking machine according to claim 1, wherein: the working execution element comprises execution oil cylinders, and the working valves (2) are arranged in one-to-one correspondence with the execution oil cylinders.

6. A hydraulic valve system for a corn cob husking machine according to claim 5, wherein: and hydraulic control one-way valves (5) are arranged on oil paths connected with the working valves (2) and the execution oil cylinders.

7. A corn cob hydraulic valve system according to claim 5, wherein: the execution oil cylinder comprises a header oil cylinder, a main clutch oil cylinder, a returning machine oil cylinder and a granary oil cylinder.