CN214698570U

CN214698570U - Control valve group for sugarcane machine fan and hydraulic system of sugarcane machine fan

Info

Publication number: CN214698570U
Application number: CN202120420222.4U
Authority: CN
Inventors: 陈栋; 高剑英
Original assignee: Jiangsu World Agricultural Machinery Co Ltd
Current assignee: Jiangsu World Agricultural Machinery Co Ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-11-12
Anticipated expiration: 2031-02-25

Abstract

The utility model relates to an agricultural machinery specifically is a hydraulic system that is used for valve unit of sugarcane machine fan and sugarcane machine fan, including cartridge valve and switching-over valve, the oil inlet A of cartridge valve communicates in the pressure hydraulic fluid port of pump, the oil-out B of cartridge valve is configured into the working fluid port, the control hydraulic fluid port X of cartridge valve communicates in the pressure hydraulic fluid port of pump through the switching-over valve, the P hydraulic fluid port of switching-over valve communicates in the pressure hydraulic fluid port of pump, the C hydraulic fluid port of switching-over valve communicate in the control hydraulic fluid port X of cartridge valve, the T hydraulic fluid port of switching-over valve communicates in the oil tank, and the hydraulic system who has solved sugarcane machine fan among the prior art adopts the big, the big technical problem of system loop weight of system pressure loss that the pilot operated switching-over valve leads to.

Description

Control valve group for sugarcane machine fan and hydraulic system of sugarcane machine fan

Technical Field

The utility model relates to the field of agricultural machinery, in particular to a hydraulic system for a control valve group of a sugarcane machine fan and the sugarcane machine fan.

Background

The fan of the sugarcane harvester is an important working part in the harvesting of the sugarcane harvester, and can effectively remove crushed leaves and soil carried in the harvesting of the sugarcane and the tips of the sugarcane which cannot be used for squeezing sugar.

The hydraulic system of the sugarcane blower in the market generally adopts a hydraulic control reversing valve as a loop control element, the hydraulic control reversing valve comprises a hydraulic control valve and a reversing valve, and the hydraulic control reversing valve is narrow in a fluid channel in the hydraulic control reversing valve, so that the whole hydraulic system is large in required flow and high in consumed power, and meanwhile, the hydraulic control reversing valve is large in size and large in mass and is not beneficial to installation.

Disclosure of Invention

In order to solve the hydraulic system of sugarcane machine fan among the prior art and adopt the hydraulic control switching-over valve to lead to the technical problem that system pressure loss is big, system loop weight is big, it is bulky to occupy, the utility model provides a valve unit for sugarcane machine fan has solved above-mentioned technical problem.

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

the utility model provides a valve unit for sugarcane machine fan, include: an oil inlet A of the cartridge valve is communicated with a pressure oil port of the pump, an oil outlet B of the cartridge valve is configured as a working oil port, and a control oil port X of the cartridge valve is communicated with the pressure oil port of the pump through a reversing valve; and the oil port P of the reversing valve is communicated with a pressure oil port of the pump, the oil port C of the reversing valve is communicated with the control oil port X of the cartridge valve, and the oil port T of the reversing valve is communicated with an oil tank.

Furthermore, the reversing valve is a two-position three-way reversing valve, in a working state, a C oil port of the two-position three-way reversing valve is communicated with a control oil port X of the cartridge valve, a T oil port of the two-position three-way reversing valve is communicated with an oil tank, the cartridge valve is opened, in an unloading state, the C oil port of the two-position three-way reversing valve is communicated with the control oil port X of the cartridge valve, a P oil port of the two-position three-way reversing valve is communicated with a pressure oil port of the pump, and the cartridge valve is closed.

The utility model discloses an on the other hand still provides a hydraulic system of sugarcane machine fan, include: the starting port of the fan motor is communicated with the pressure oil port of the pump through the oil supply valve group, and the falling port of the fan motor is communicated with the oil tank; the oil supply valve group comprises the control valve group for the sugarcane blower, and a working oil port of the oil supply valve group is communicated with a starting port of the blower motor; the oil return valve group comprises the control valve group for the sugarcane blower, and a working oil port of the oil return valve group is communicated with an oil tank; in an unloading state, the cartridge valve of the oil return valve group is opened, the cartridge valve of the oil supply valve group is closed, pressure oil ports of the pumps provide pressure oil for the fan motor, and in the unloading state, the cartridge valve of the oil return valve group is opened, the cartridge valve of the oil supply valve group is closed, and the pressure oil directly flows back to an oil tank from the cartridge valve of the oil return valve group to be unloaded.

Furthermore, the hydraulic system of the cane crusher fan further comprises an overflow valve, an oil inlet of the overflow valve is respectively communicated with a pressure oil port of the pump, an oil inlet of the oil supply valve group and an oil inlet of the oil return valve group, and a pressure relief port of the overflow valve is communicated with an oil tank.

Based on the structure, the utility model discloses the technological effect that can realize does:

the utility model discloses a mode that is used for the valve unit of sugarcane machine fan to adopt switching-over valve control cartridge valve, the pressure oil that starts the fan motor gets into from the oil inlet A of cartridge valve, then flows in the fan motor from the oil-out B of cartridge valve, because the runner of cartridge valve is greater than the runner of liquid accuse switching-over valve to can reduce that system pressure loss is big (the pressure drop is 2Mpa when adopting the liquid accuse switching-over valve, the utility model discloses a pressure drop for the control valve of sugarcane machine fan is 1Mpa, simultaneously the utility model discloses a valve body that is used for the cartridge valve of the valve unit of sugarcane machine fan and switching-over valve is little, gravity is light (the total mass of liquid accuse check valve is 20Kg, the utility model discloses a total mass of the control valve of sugarcane machine fan is 10Kg) to avoided adopting the liquid accuse switching-over valve and leaded to system loop weight is big, occupy bulky technical problem.

Drawings

FIG. 1 is a schematic view of a control valve set for a blower of a sugarcane harvester according to the present invention;

FIG. 2 is a schematic view of a hydraulic system of the sugarcane harvester fan of the present invention in a working state;

fig. 3 is a schematic view of the hydraulic system of the sugarcane harvester fan in the unloading state.

Wherein: 1-a fan motor; 2-an oil supply valve group; and 3-an oil return valve group.

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 in the present invention, all other embodiments obtained by a person skilled in the art without 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 example 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 the components and steps, the 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 those 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, further discussion thereof is not required 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.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated 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 term "above … …" can include both an orientation of "above … …" and "below … …". 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 if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The hydraulic system of the sugarcane blower in the market generally adopts a hydraulic control reversing valve as a loop control element, the hydraulic control reversing valve comprises a hydraulic control valve and a reversing valve, the flow required by the whole hydraulic system is large and the consumed power is high due to the fact that a fluid channel in the hydraulic control reversing valve is narrow, and meanwhile, the hydraulic control reversing valve is large in size and large in mass (approximately about 20 kilograms) and is not beneficial to installation.

As shown in fig. 1, the utility model provides a valve unit for sugarcane machine fan, including cartridge valve and switching-over valve, the oil inlet A of cartridge valve communicates in the pressure hydraulic fluid port of pump, the oil-out B of cartridge valve is configured into the working fluid port, the control hydraulic fluid port X of cartridge valve communicates in the pressure hydraulic fluid port of pump through the switching-over valve, and the P hydraulic fluid port of switching-over valve communicates in the pressure hydraulic fluid port of pump, the C hydraulic fluid port of switching-over valve communicate in the control hydraulic fluid port X of cartridge valve, the T hydraulic fluid port of switching-over valve communicates in the oil tank.

The utility model discloses a mode that is used for the valve unit of sugarcane machine fan to adopt switching-over valve control cartridge valve, the pressure oil that starts fan motor 1 gets into from the oil inlet A of cartridge valve, then flows into fan motor 1 from the oil-out B of cartridge valve, because the runner of cartridge valve is greater than the runner of liquid accuse switching-over valve to can reduce that system pressure loss is big (the pressure drop is 2Mpa when adopting the liquid accuse switching-over valve, the utility model discloses a pressure drop is 1Mpa for the control valve of sugarcane machine fan, simultaneously the utility model discloses a valve body that is used for the cartridge valve of the valve unit of sugarcane machine fan and switching-over valve is little, gravity is light (the total mass of liquid accuse check valve is 20Kg, the utility model discloses a total mass of control valve for sugarcane machine fan is 10Kg) to avoided adopting the liquid accuse switching-over valve and leaded to system's return circuit weight is big, occuping bulky technical problem.

According to the utility model discloses a concrete embodiment, the switching-over valve is by preferably two tee bend switching-over valves, under the operating condition, the C hydraulic fluid port of two tee bend switching-over valves communicates in the control hydraulic fluid port X of cartridge valve, and the T hydraulic fluid port of two tee bend switching-over valves communicates in the oil tank, and the cartridge valve is opened, and under the uninstallation state, the C hydraulic fluid port of two tee bend switching-over valves communicate in the control hydraulic fluid port X of cartridge valve, the P hydraulic fluid port of two tee bend switching-over valves communicates in the pressure hydraulic fluid port of pump, and the cartridge valve is closed.

As shown in fig. 2 and 3, the utility model also provides a hydraulic system of sugarcane machine fan, including fan motor 1, fuel feeding valves 2 and oil return valves 3, fan motor 1's the pressure hydraulic fluid port that plays the mouth through fuel feeding valves 2 intercommunication in the pump, fan motor 1's the mouth that falls communicates in the oil tank, fuel feeding valves 2 includes foretell a control valve group that is used for the sugarcane machine fan, fuel feeding valves 2's the working fluid port communicates in fan motor 1's the mouth that plays, oil return valves 3 includes foretell a control valve group that is used for the sugarcane machine fan, oil return valves 3's the working fluid port communicates in the oil tank. In the working state, the cartridge valve of the oil supply valve group 2 is opened, the cartridge valve of the oil return valve group 3 is closed at the same time, the pressure oil port of the pump provides pressure oil for the fan motor 1, in the unloading state, the cartridge valve of the oil return valve group 3 is opened, the cartridge valve of the oil supply valve group 2 is closed at the same time, and the pressure oil directly flows back to the oil tank from the cartridge valve of the oil return valve group 3 to be unloaded.

In order to prevent the system pressure from being overlarge, the hydraulic system of the cane machine fan further comprises an overflow valve, an oil inlet of the overflow valve is respectively communicated with a pressure oil port of the pump, an oil inlet of the oil supply valve group 2 and an oil inlet of the oil return valve group 3, and a pressure relief port of the overflow valve is communicated with an oil tank.

Based on the basic structure, in a working state, pressure oil of a pump enters from an oil port A of a cartridge valve of the oil supply valve group 2 and then flows out from an oil port B of the cartridge valve of the oil supply valve group 2 to a starting port of the fan motor 1, and the fan motor 1 works; under the unloading state, pressure oil of the pump enters from an oil port A of the cartridge valve of the oil return valve group 3 and then flows out to an oil tank from an oil port B of the cartridge valve of the oil supply valve group 2, and the fan motor 1 does not work.

It should be understood that the above description of the specific embodiments is only for the purpose of explanation and not for the purpose of limitation. Obvious changes or variations caused by the spirit of the present invention are within the scope of the present invention.

Claims

1. A valve block for a sugarcane top machine fan, comprising:

an oil inlet A of the cartridge valve is communicated with a pressure oil port of the pump, an oil outlet B of the cartridge valve is configured as a working oil port, and a control oil port X of the cartridge valve is communicated with the pressure oil port of the pump through a reversing valve;

and the oil port P of the reversing valve is communicated with a pressure oil port of the pump, the oil port C of the reversing valve is communicated with the control oil port X of the cartridge valve, and the oil port T of the reversing valve is communicated with an oil tank.

2. The control valve group for the sugarcane blower according to claim 1, wherein the reversing valve is a two-position three-way reversing valve, in a working state, a C oil port of the two-position three-way reversing valve is communicated with a control oil port X of the cartridge valve, a T oil port of the two-position three-way reversing valve is communicated with an oil tank, the cartridge valve is opened, in an unloading state, the C oil port of the two-position three-way reversing valve is communicated with the control oil port X of the cartridge valve, a P oil port of the two-position three-way reversing valve is communicated with a pressure oil port of a pump, and the cartridge valve is closed.

3. A hydraulic system of a sugarcane machine fan is characterized by comprising:

the starting port of the fan motor (1) is communicated with a pressure oil port of the pump through an oil supply valve group (2), and the falling port of the fan motor (1) is communicated with an oil tank;

the oil supply valve group (2), the oil supply valve group (2) comprises a control valve group for the sugarcane blower as claimed in claim 1 or 2, and a working oil port of the oil supply valve group (2) is communicated with a starting port of the blower motor (1);

the oil return valve group (3) comprises a control valve group for the sugarcane blower as claimed in claim 1 or 2, and a working oil port of the oil return valve group (3) is communicated with an oil tank;

in the unloading state, the cartridge valve of the oil supply valve group (2) is opened, the cartridge valve of the oil return valve group (3) is closed, a pressure oil port of a pump provides pressure oil for the fan motor (1), and in the unloading state, the cartridge valve of the oil return valve group (3) is opened, the cartridge valve of the oil supply valve group (2) is closed, and the pressure oil directly flows back to an oil tank from the cartridge valve of the oil return valve group (3) to be unloaded.

4. The hydraulic system of the sugarcane harvester fan as claimed in claim 3, further comprising an overflow valve, wherein an oil inlet of the overflow valve is respectively communicated with a pressure oil port of a pump, an oil inlet of the oil supply valve group (2) and an oil inlet of the oil return valve group (3), and a pressure relief port of the overflow valve is communicated with an oil tank.