CN215166031U - Broken hydraulic control system and excavator - Google Patents
Broken hydraulic control system and excavator Download PDFInfo
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- CN215166031U CN215166031U CN202120488001.0U CN202120488001U CN215166031U CN 215166031 U CN215166031 U CN 215166031U CN 202120488001 U CN202120488001 U CN 202120488001U CN 215166031 U CN215166031 U CN 215166031U
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- control system
- crushing
- reversing
- bucket rod
- control valve
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Abstract
The utility model discloses a hydraulic crushing control system and an excavator, wherein the hydraulic crushing control system comprises a bucket rod oil cylinder control system and a crushing hammer control system which are independently arranged; a reversing component is connected in the bucket rod oil cylinder control system; a pressure detection component for detecting pilot pressure is connected in the breaking hammer control system; the pressure detection component is connected with the controller and is used for transmitting a detection pilot pressure signal to the controller; the controller is connected with the reversing component and used for achieving reversing of the bucket rod oil cylinder. The utility model discloses a broken action of real-time supervision has realized the nimble control to the dipper hydro-cylinder, has avoided the damage risk that the maloperation brought, has promoted complete machine system, especially the reliability of quartering hammer, and this system simple structure, easily realizes.
Description
Technical Field
The utility model belongs to the technical field of the engineering machine tool technique and specifically relates to a broken hydraulic control system is related to.
Background
At present, a crushing hydraulic control oil way and a working device of an excavator, a bucket rod and a bucket control oil way are completely independent. The hammer strike and the working device actions, including the bucket rod actions, have no logical relationship, and the two actions interfere with each other, as shown in fig. 1.
During the crushing operation, after the drill rod goes deep into hard media such as rocks and concrete, if manual operation or misoperation occurs, the bucket rod oil cylinder acts, and the crushing hammer swings left and right, so that the drill rod is easily broken.
Disclosure of Invention
An object of the utility model is to provide a broken hydraulic control system to avoid present because of the quartering hammer impact process, the problem of damage quartering hammer drill rod that maloperation bucket rod hydro-cylinder caused.
The utility model discloses realize according to following technical scheme:
a hydraulic crushing control system comprises a bucket rod oil cylinder control system and a crushing hammer control system which are independently arranged; a reversing component is connected in the bucket rod oil cylinder control system; a pressure detection component for detecting pilot pressure is connected in the breaking hammer control system; the pressure detection component is connected with the controller and is used for transmitting a detection pilot pressure signal to the controller; the controller is connected with the reversing component and used for achieving reversing of the bucket rod oil cylinder.
Further, the breaking hammer control system comprises a breaking hammer, a main control valve and a breaking pilot control valve; the crushing pilot control valve is connected with a crushing valve core of the main control valve, the crushing valve core of the main control valve is connected with an oil inlet of the crushing hammer, an oil outlet of the crushing hammer is connected with a hydraulic oil tank through an oil return pipeline, the pressure detection part is connected in series on pilot oil paths of the crushing pilot control valve and the crushing valve core of the main control valve, and a circuit of the pressure detection part is connected with the controller.
Further, the pressure detection component adopts a pressure sensor.
Further, the bucket rod oil cylinder control system comprises a bucket rod oil cylinder, a main control valve and a bucket rod pilot control valve; the reversing component comprises a reversing piece I and a reversing piece II; the bucket rod pilot control valve is respectively connected with oil ways of the reversing piece I and the reversing piece II, the reversing piece I and the reversing piece II are respectively connected with a bucket rod valve core of the main control valve, oil return paths of the reversing piece I and the reversing piece II are connected with the hydraulic oil tank, the main control valve is connected with a large cavity and a small cavity of the bucket rod oil cylinder, and circuits of the reversing piece I and the reversing piece II are connected with the controller.
Furthermore, the reversing piece I is an electromagnetic valve I, and the reversing piece II is an electromagnetic valve II.
Furthermore, the electromagnetic valve I and the electromagnetic valve II both adopt electromagnetic switch valves or proportional electromagnetic valves.
An excavator is provided with the crushing hydraulic control system.
The utility model discloses beneficial effect:
compared with the prior art, the utility model discloses a broken action of real-time supervision has realized the nimble control to the dipper hydro-cylinder, has avoided the damage risk that the maloperation brought, has promoted complete machine system, especially the reliability of quartering hammer, and this system simple structure, easily realizes.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is an oil path of a breaking hammer and an oil path of a bucket rod oil cylinder of an original excavator;
FIG. 2 is a schematic diagram of the hydraulic crushing control system of the present invention;
in the figure: 1. a solenoid valve I; 2. a solenoid valve II; 3. a bucket rod pilot control valve; 4. a master control valve; 5. a bucket rod cylinder; 6. a hydraulic oil tank; 7. a controller; 8. a pressure sensor; 9. a crushing pilot control valve; 10 breaking hammer.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 2, a hydraulic crushing control system comprises a bucket rod cylinder control system and a crushing hammer control system which are independently arranged; a reversing component is connected in the bucket rod oil cylinder control system; a pressure detection component for detecting pilot pressure is connected in the breaking hammer control system; the pressure detection component is connected with the controller 7 and is used for transmitting a detection pilot pressure signal to the controller 7; the controller 7 is connected with the reversing component and used for reversing the bucket rod oil cylinder 5.
A preferred embodiment of the above embodiment is given below in relation to a breaking hammer control system:
with continued reference to fig. 2, the breaking hammer control system includes a breaking hammer 10, a main control valve 4, and a breaking pilot control valve 9; the crushing pilot control valve 9 is connected with the crushing valve core of the main control valve 4, the crushing valve core of the main control valve 4 is connected with the oil inlet of the crushing hammer 10, the oil outlet of the crushing hammer 10 is connected with the hydraulic oil tank 6 through an oil return pipeline, the pressure detection part is connected in series on the pilot oil channels of the crushing pilot control valve 9 and the crushing valve core of the main control valve 4, and the circuit of the pressure detection part is connected with the controller 7.
The preferred scheme is as follows: the pressure detection means employs a pressure sensor 8.
The following provides a preferred embodiment of the above embodiment with respect to the arm cylinder control system:
continuing to refer to fig. 2, the arm cylinder control system includes an arm cylinder 5, a main control valve 4, and an arm pilot control valve 3; the reversing component comprises a reversing piece I and a reversing piece II; the bucket rod pilot control valve 3 is respectively connected with oil ways of the reversing piece I and the reversing piece II, the reversing piece I and the reversing piece II are respectively connected with a bucket rod valve core of the main control valve 4, oil return paths of the reversing piece I and the reversing piece II are connected with the hydraulic oil tank 6, the main control valve 4 is connected with a large cavity and a small cavity of the bucket rod oil cylinder 5, and circuits of the reversing piece I and the reversing piece II are connected with the controller 7.
The preferred scheme is as follows: the reversing piece I is an electromagnetic valve I1, and the reversing piece II is an electromagnetic valve II 2.
Further preferred scheme: electromagnetic switch valves or proportional electromagnetic valves are adopted for the electromagnetic valves I1 and II 2.
Further preferred scheme: the solenoid valves I1 and II 2 can be replaced by an integrated solenoid valve group scheme.
The working process is as follows:
when the crushing pilot control valve 9 controls the crushing hammer 10 to strike through the crushing valve core of the main control valve 4, the pressure sensor 8 detects a pilot pressure signal and transmits the pilot pressure signal to the controller 7, the controller 7 receives the pressure data, and controls the electromagnetic valves I1 and II 2 to be electrified by adjusting current values, so that the hydraulic control valve is reversed, a pilot oil path of the bucket rod pilot control valve 3 is changed to an oil tank, and the bucket rod valve core of the main control valve 4 cannot be reversed during crushing operation. On the contrary, after the crushing operation is finished, the electromagnetic valve I1 and the electromagnetic valve II 2 are powered off, and the bucket rod oil cylinder control system returns to the conventional state.
By the above, the utility model discloses can be through pressure monitoring, logic control solenoid valve, can realize under the broken operating mode, to the nimble control of dipper hydro-cylinder, and then reduce the harm that the dipper moved to quartering hammer and annex and cause.
The utility model also provides an excavator installs foretell broken hydraulic control system.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments by utilizing the above technical contents without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical matters of the present invention are within the scope of the present invention.
Claims (7)
1. A hydraulic crushing control system comprises a bucket rod oil cylinder control system and a crushing hammer control system which are independently arranged; the method is characterized in that:
a reversing component is connected in the bucket rod oil cylinder control system;
a pressure detection component for detecting pilot pressure is connected in the breaking hammer control system;
the pressure detection component is connected with the controller and is used for transmitting a detection pilot pressure signal to the controller;
the controller is connected with the reversing component and used for achieving reversing of the bucket rod oil cylinder.
2. A crushing hydraulic control system according to claim 1, characterized in that:
the breaking hammer control system comprises a breaking hammer, a main control valve and a breaking pilot control valve;
the crushing pilot control valve is connected with a crushing valve core of the main control valve, the crushing valve core of the main control valve is connected with an oil inlet of the crushing hammer, an oil outlet of the crushing hammer is connected with a hydraulic oil tank through an oil return pipeline, the pressure detection part is connected in series on pilot oil paths of the crushing pilot control valve and the crushing valve core of the main control valve, and a circuit of the pressure detection part is connected with the controller.
3. A crushing hydraulic control system according to claim 2, characterized in that:
the pressure detection component adopts a pressure sensor.
4. A crushing hydraulic control system according to claim 1, characterized in that:
the bucket rod oil cylinder control system comprises a bucket rod oil cylinder, a main control valve and a bucket rod pilot control valve;
the reversing component comprises a reversing piece I and a reversing piece II;
the bucket rod pilot control valve is respectively connected with oil ways of the reversing piece I and the reversing piece II, the reversing piece I and the reversing piece II are respectively connected with a bucket rod valve core of the main control valve, oil return paths of the reversing piece I and the reversing piece II are connected with the hydraulic oil tank, the main control valve is connected with a large cavity and a small cavity of the bucket rod oil cylinder, and circuits of the reversing piece I and the reversing piece II are connected with the controller.
5. A crushing hydraulic control system according to claim 4, characterized in that:
the reversing piece I is an electromagnetic valve I, and the reversing piece II is an electromagnetic valve II.
6. A crushing hydraulic control system according to claim 5, characterized in that:
and the electromagnetic valve I and the electromagnetic valve II both adopt electromagnetic switch valves or proportional electromagnetic valves.
7. An excavator, characterized in that:
a crushing hydraulic control system according to any one of claims 1 to 6 is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120488001.0U CN215166031U (en) | 2021-03-08 | 2021-03-08 | Broken hydraulic control system and excavator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120488001.0U CN215166031U (en) | 2021-03-08 | 2021-03-08 | Broken hydraulic control system and excavator |
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| Publication Number | Publication Date |
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| CN215166031U true CN215166031U (en) | 2021-12-14 |
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| CN202120488001.0U Active CN215166031U (en) | 2021-03-08 | 2021-03-08 | Broken hydraulic control system and excavator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114541504A (en) * | 2022-01-28 | 2022-05-27 | 徐州徐工挖掘机械有限公司 | Excavator breaking hammer protection control system and control method thereof |
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2021
- 2021-03-08 CN CN202120488001.0U patent/CN215166031U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114541504A (en) * | 2022-01-28 | 2022-05-27 | 徐州徐工挖掘机械有限公司 | Excavator breaking hammer protection control system and control method thereof |
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