阅读说明：本技术 液压控制系统及挖掘机 (Hydraulic control system and excavator ) 是由 王彦森 李德康 石向星 于 2020-05-08 设计创作，主要内容包括：本发明涉及挖掘机技术领域,尤其是涉及一种液压控制系统及挖掘机。该液压控制系统包括：控制器、第一阀门、第二阀门和人机交互装置；第一阀门安装于第一管路上,第二阀门安装于第二管路上,第一管路的一端用于与机具的进油口相连通,第二管路的一端用于与机具的出油口相连通；人机交互装置用于通过控制器控制第一阀门和第二阀门。该挖掘机,其包括所述的液压控制系统。本发明便于更换机具,在能够实现对不同机具的控制,省工省时。(The invention relates to the technical field of excavators, in particular to a hydraulic control system and an excavator. The hydraulic control system includes: the system comprises a controller, a first valve, a second valve and a man-machine interaction device; the first valve is arranged on the first pipeline, the second valve is arranged on the second pipeline, one end of the first pipeline is used for being communicated with an oil inlet of the machine tool, and one end of the second pipeline is used for being communicated with an oil outlet of the machine tool; the man-machine interaction device is used for controlling the first valve and the second valve through the controller. The excavator comprises the hydraulic control system. The invention is convenient for replacing machines and tools, can realize the control of different machines and tools, and is labor-saving and time-saving.)

1. A hydraulic control system, comprising: the system comprises a controller (101), a first valve (102), a second valve (103) and a human-computer interaction device; the first valve (102) is installed on a first pipeline (105), the second valve (103) is installed on a second pipeline (106), one end of the first pipeline (105) is used for being communicated with an oil inlet of an implement (113), and one end of the second pipeline (106) is used for being communicated with an oil outlet of the implement (113); the human-computer interaction device is used for controlling the first valve (102) and the second valve (103) through the controller (101).

2. The hydraulic control system of claim 1, wherein the first valve (102) is a proportional electromagnetic spill valve and the second valve (103) is a proportional electromagnetic spill valve; the controller (101) is capable of controlling the opening of the first valve (102) and the opening of the second valve (103), respectively.

3. The hydraulic control system of claim 1 or 2, wherein the human interaction device is a display screen (104); the display screen (104) is electrically connected with the controller (101), and the display screen (104) can display different machine tool modes.

4. The hydraulic control system of claim 3, wherein the implement (113) is a breaking hammer or a hydraulic shear; the implement modes include a breaking hammer mode and a hydraulic shear mode, wherein,

when the breaking hammer mode is selected, the opening degree of the first valve (102) is a set value, and the opening degree of the second valve (103) is fully opened;

when the hydraulic shear mode is selected, the opening degree of the first valve (102) and the opening degree of the second valve (103) can be arbitrarily set by a user, respectively.

5. The hydraulic control system of claim 1 or 2, further comprising an operating mechanism (107), the operating mechanism (107) being electrically connected to the controller (101) for controlling the action of the implement (113).

6. The hydraulic control system according to claim 1, further comprising a solenoid directional valve (108), and the other end of the first line (105) and the other end of the second line (106) communicate with the solenoid directional valve (108), respectively.

7. The hydraulic control system of claim 6, wherein a first shut-off valve (111) is provided on the first line (105), and the first valve (102) is located between the electromagnetic directional valve (108) and the first shut-off valve (111);

and a second stop valve (112) is arranged on the second pipeline (106), and the second valve (103) is positioned between the electromagnetic directional valve (108) and the second stop valve (112).

8. The hydraulic control system of claim 6 or 7, wherein the solenoid directional valve (108) is a three-position, four-way valve.

9. The hydraulic control system of claim 6 or 7, further comprising a hydraulic pump (109), the hydraulic pump (109) being in communication with the solenoid directional valve (108).

10. An excavator comprising a hydraulic control system as claimed in any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of excavators, in particular to a hydraulic control system and an excavator.

Background

At present, the excavator is more and more widely applied, and the excavator is not only applied to earthwork excavation operation, but also is applied to various working conditions such as crushing, hoisting, soil compacting, wood grabbing, wood planting and the like in an auxiliary manner. In practical application, a hydraulic pipeline of the breaking hammer, a hydraulic pipeline of the hydraulic shear and a control pipeline are separately arranged on the excavator, so that labor and time are wasted when the two-way operation machines such as the breaking hammer, the hydraulic shear and the like are switched.

Disclosure of Invention

The invention aims to provide a hydraulic control system and an excavator, and aims to solve the technical problem that labor and time are wasted when bidirectional operation machines such as a breaking hammer and a hydraulic shear are switched in the prior art.

The present invention provides a hydraulic control system, including: the system comprises a controller, a first valve, a second valve and a man-machine interaction device; the first valve is arranged on a first pipeline, the second valve is arranged on a second pipeline, one end of the first pipeline is used for being communicated with an oil inlet of an implement, and one end of the second pipeline is used for being communicated with an oil outlet of the implement; the human-computer interaction device is used for controlling the first valve and the second valve through the controller.

In any of the above technical solutions, further, the first valve is a proportional electromagnetic spill valve, and the second valve is a proportional electromagnetic spill valve; the controller can control the opening degree of the first valve and the opening degree of the second valve respectively.

In any of the above technical solutions, further, the human-computer interaction device is a display screen; the display screen is electrically connected with the controller, and the display screen can display different machine tool modes.

In any of the above technical solutions, further, the implement is a breaking hammer or a hydraulic shear; the implement modes include a breaking hammer mode and a hydraulic shear mode, wherein,

when the breaking hammer mode is selected, the opening degree of the first valve is a set value, and the opening degree of the second valve is fully opened;

when the hydraulic shear mode is selected, the opening degree of the first valve and the opening degree of the second valve can be arbitrarily set by a user, respectively.

In any of the above technical solutions, further, the hydraulic control system further includes an operating mechanism, and the operating mechanism is electrically connected to the controller and is used for controlling the action of the implement.

In any of the above technical solutions, further, the hydraulic control system further includes an electromagnetic directional valve, and the other end of the first pipeline and the other end of the second pipeline are respectively communicated with the electromagnetic directional valve.

In any one of the above technical solutions, further, a first stop valve is disposed on the first pipeline, and the first valve is located between the electromagnetic directional valve and the first stop valve;

and a second stop valve is arranged on the second pipeline, and the second valve is positioned between the electromagnetic directional valve and the second stop valve.

In any of the above technical solutions, further, the electromagnetic directional valve is a three-position four-way valve.

In any of the above technical solutions, further, the hydraulic control system further includes a hydraulic pump, and the hydraulic pump is communicated with the electromagnetic directional valve.

The invention also provides an excavator which comprises the hydraulic control system.

Compared with the prior art, the invention has the following beneficial effects:

the present invention provides a hydraulic control system, comprising: the system comprises a controller, a first valve, a second valve and a man-machine interaction device; the first valve is arranged on the first pipeline, the second valve is arranged on the second pipeline, one end of the first pipeline is used for being communicated with an oil inlet of the machine tool, and one end of the second pipeline is used for being communicated with an oil outlet of the machine tool; the man-machine interaction device is used for controlling the first valve and the second valve through the controller. After the first pipeline and the second pipeline are connected with the machine tool, the man-machine interaction device is used for controlling the first valve and the second valve, so that different machine tools can share one set of pipeline, a controller and the man-machine interaction device, the operation of replacing the machine tool is simplified, the machine tool is controlled conveniently, and labor and time are saved.

The invention also provides an excavator, which comprises the hydraulic control system. Based on the analysis, the excavator is convenient for replacing machines and tools, can realize the control of different machines and tools, and is labor-saving and time-saving.

It is to be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily restrictive of the disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of the disclosure. Together, the description and drawings serve to explain the principles of the disclosure.

Drawings

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

Fig. 1 is a schematic structural diagram of a hydraulic control system according to a first embodiment of the present invention;

fig. 2 is an electrical control schematic diagram of a hydraulic control system according to a first embodiment of the present invention.

Icon:

101-a controller; 102-a first valve; 103-a second valve;

104-a display screen; 105-a first conduit; 106-a second conduit;

107-a steering mechanism; 108-a solenoid directional valve; 109-a hydraulic pump;

110-a fuel tank; 111-a first stop valve; 112-a second stop valve;

113-a machine tool; 201-electric control valve group.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.