CN114215795A - Engineering machine tool valve accuse formula pressurized cylinder continuous operation device - Google Patents
Engineering machine tool valve accuse formula pressurized cylinder continuous operation device Download PDFInfo
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- CN114215795A CN114215795A CN202111602618.1A CN202111602618A CN114215795A CN 114215795 A CN114215795 A CN 114215795A CN 202111602618 A CN202111602618 A CN 202111602618A CN 114215795 A CN114215795 A CN 114215795A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
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Abstract
The invention discloses a continuous operation device of a valve-controlled pressure cylinder of engineering machinery, which comprises: the operation cylinder, the pressure boost cylinder assembly, the operation reversing valve, the oil tank and the oil pump, wherein the pressure boost cylinder assembly is respectively connected with the operation cylinder and the operation reversing valve, the operation reversing valve is connected with the oil tank, and the oil pump is connected with the operation reversing valve. When the operation cylinder needs pressurization operation, the operation reversing valve is reversed, so that the oil pump supplies oil to the pressurization cylinder assembly through the operation reversing valve, and the pressurization cylinder assembly continuously pressurizes the operation cylinder, so that the working efficiency is improved; when the operation cylinder needs to change the operation direction, the operation reversing valve is reversed, so that the oil pump directly supplies oil to the operation cylinder through the operation reversing valve.
Description
Technical Field
The invention relates to the technical field of hydraulic pressure, in particular to a continuous operation device of a valve-controlled pressure cylinder of engineering machinery.
Background
Engineering machinery is common equipment in construction engineering, for example, when a pile pressing machine is constructed, a walking cylinder is slow in walking speed due to self weight, and further construction efficiency is low.
In order to improve the construction efficiency, the common mode is to improve the working flow, but the mode puts higher requirements on the performances of an engine, a hydraulic pump and a motor, and the manufacturing and using cost of the whole machine is increased.
Disclosure of Invention
The invention aims to provide a continuous operation device of a valve-controlled pressure cylinder of engineering machinery, which can effectively improve the working efficiency.
In order to achieve the purpose, the invention provides the following technical scheme:
a continuous operation device of a valve-controlled pressure cylinder of engineering machinery comprises: the oil pump is used for supplying oil to the supercharging cylinder assembly through the operation reversing valve, the supercharging cylinder assembly is used for continuously supercharging the operation cylinder, and the operation reversing valve is used for controlling the operation direction of the operation cylinder.
Preferably, the pressure cylinder assembly comprises a double-piston-rod oil cylinder and a first multi-way valve, two oil outlets of the double-piston-rod oil cylinder are respectively communicated with the rodless cavity of the working cylinder through a first one-way valve, and the first multi-way valve is connected with the double-piston-rod oil cylinder and used for controlling the double-piston-rod oil cylinder to reciprocate.
Preferably, two ends of the double-piston rod oil cylinder are respectively connected with the operation reversing valve through a second one-way valve, and the second one-way valve is communicated with the first one-way valve which is positioned on the same side of the double-piston rod oil cylinder.
Preferably, the hydraulic control system further comprises an adjustable valve, wherein the adjustable valve is respectively connected with the operation reversing valve, the operation cylinder and the first multi-way valve, and the adjustable valve is used for controlling hydraulic oil to directly flow into the operation cylinder or controlling hydraulic oil to sequentially flow into the operation cylinder from the first multi-way valve and the double-piston-rod oil cylinder.
Preferably, the first multi-way valve is a two-position four-way solenoid valve.
Preferably, the supercharging cylinder assembly comprises a second multi-way valve and a plurality of supercharging cylinders, and the supercharging cylinders are respectively arranged in a plurality of oil paths in the second multi-way valve.
Preferably, the second multi-way valve is a three-position two-way electromagnetic valve, and two oil paths of the three-position two-way electromagnetic valve are respectively provided with one pressure cylinder.
Compared with the prior art, the technical scheme has the following advantages:
1. the operation cylinder can be continuously pressurized through the pressurization cylinder assembly, so that the operation efficiency is improved.
2. The double-piston-rod oil cylinder can be controlled to reciprocate through the first multi-way valve, and then the purpose of continuously pressurizing the working cylinder is achieved.
3. Through setting up a plurality of pressurized cylinders in the second multiple unit valve, not only can play the purpose of continuous increase, can also improve the compactedness of valve body.
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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a hydraulic schematic diagram of a continuous operation device of a valve-controlled pressure cylinder of an engineering machine according to an embodiment of the present invention;
fig. 2 is a hydraulic schematic diagram of a continuous operation device of a valve-regulated pressure cylinder of a construction machine according to another embodiment of the invention.
The reference numbers are as follows:
the hydraulic cylinder comprises an operating cylinder 1, a double-piston-rod oil cylinder 2, a first multi-way valve 3, an adjustable valve 4, an operating reversing valve 5, a first one-way valve 6, a second one-way valve 7, a second multi-way valve 8 and a pressure cylinder 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Please refer to fig. 1 and fig. 2.
The embodiment of the invention provides a continuous operation device of a valve-controlled pressure cylinder of engineering machinery, which comprises: the operation cylinder 1, the pressure boost cylinder subassembly, operation switching-over valve 5, oil tank and oil pump, the pressure boost cylinder subassembly is connected with operation cylinder 1 and operation switching-over valve 5 respectively, and operation switching-over valve 5 is connected with the oil tank, and the oil pump is connected with operation switching-over valve 5. When the working cylinder 1 needs pressurization work, the operation reversing valve 5 is reversed, so that the oil pump supplies oil to the pressurization cylinder assembly through the operation reversing valve 5, the pressurization cylinder assembly continuously pressurizes the working cylinder 1, and the working efficiency is improved; when the working cylinder 1 needs to change the working direction, the working reversing valve 5 is reversed, so that the oil pump directly supplies oil to the working cylinder 1 through the working reversing valve 5.
The supercharging cylinder assembly specifically comprises two structures, as shown in fig. 1, the first supercharging cylinder assembly comprises a double-piston-rod oil cylinder 2 and a first multi-way valve 3, the first multi-way valve 3 is preferably a two-position four-way electromagnetic valve, two output oil ports of the double-piston-rod oil cylinder 2 are respectively communicated with a rodless cavity of an operation cylinder 1 through a first one-way valve 6, a rod cavity of the operation cylinder 1 is connected with an operation reversing valve 5, and the first multi-way valve 3 is connected with the double-piston-rod oil cylinder 2. When the pressure needs to be increased, the operation reversing valve 5 supplies oil to the first multi-way valve 3, when the first multi-way valve 3 is in the left position, hydraulic oil enters the cylinder body from an oil port on the right side of the cylinder body of the double-piston rod oil cylinder 2, then the piston of the double-piston rod oil cylinder 2 is pushed to move left, and the end surface of the piston rod is smaller than the end surface of the piston in the cylinder body, so that the pressure increasing effect can be achieved on the operation cylinder 1 when the piston rod moves left; when the double-piston-rod oil cylinder 2 moves to the limit position from the left side, the first multi-way valve 3 is controlled to be located at the right position, hydraulic oil enters the cylinder body from an oil port on the left side of the cylinder body of the double-piston-rod oil cylinder 2 at the moment, then the piston of the double-piston-rod oil cylinder 2 is pushed to move to the right side, a pressurization effect is further achieved on the operation cylinder 1, and the purpose of continuous pressurization can be achieved by controlling the piston rod of the double-piston-rod oil cylinder 2 to move in a reciprocating mode.
Furthermore, two ends of the double-piston rod oil cylinder 2 are respectively connected with the operation reversing valve 5 through a second one-way valve 7, the second one-way valve 7 is communicated with a first one-way valve 6 which is positioned on the same side of the double-piston rod oil cylinder 2, when hydraulic oil flows out of the operation reversing valve 5, the hydraulic oil is divided into two parts, one part flows into a rodless cavity of the operation cylinder 1 through the second one-way valve 7 and the first one-way valve 6 in sequence, and the other part flows into a cylinder body of the double-piston rod oil cylinder 2 through the first multi-way valve 3 to control the piston rod to reciprocate.
Furthermore, the hydraulic oil control device further comprises an adjustable valve 4, the adjustable valve 4 can change the flow direction of hydraulic oil according to whether the working cylinder 1 needs to be increased or not, the adjustable valve 4 can be a two-position three-way electromagnetic valve, the adjustable valve 4 is respectively connected with the working reversing valve 5, the working cylinder 1 and the first multi-way valve 3, and the adjustable valve 4 is used for controlling the hydraulic oil to directly flow into the working cylinder 1 or controlling the hydraulic oil to sequentially flow into the working cylinder 1 from the first multi-way valve 3 and the double-piston-rod oil cylinder 2. When the hydraulic oil directly flows into the rodless cavity of the working cylinder 1 through the adjustable valve 4, no pressurization effect is exerted on the working cylinder 1, and when the hydraulic oil flows into the working cylinder 1 through the first multi-way valve 3 and the double-piston-rod oil cylinder 2, the pressurization effect can be exerted on the working cylinder 1.
As shown in fig. 2, the second type of pressure cylinder assembly includes a second multi-way valve 8 and a plurality of pressure cylinders 9, each pressure cylinder 9 is respectively disposed in a plurality of oil paths in the second multi-way valve 8, and when one pressure cylinder 9 moves to an extreme position, the other pressure cylinder 9 can be switched to continue to perform pressure increasing, so that the purpose of continuous pressure increasing can be achieved. The second multi-way valve 8 is preferably a three-position two-way electromagnetic valve, two oil paths of the three-position two-way electromagnetic valve are respectively provided with one pressure cylinder 9, the other pressure cylinder 9 is not provided, and when pressure increase is not needed, hydraulic oil can be conveyed through the oil path without the pressure cylinder 9. By arranging the booster cylinder 9 in the second multi-way valve 8, the degree of integration of the valve body structure is improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The engineering machinery valve control type pressure cylinder continuous operation device provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides an engineering machine tool valve accuse formula pressurized cylinder continuous operation device which characterized in that includes: the oil pump is used for supplying oil to the supercharging cylinder assembly through the operation reversing valve, the supercharging cylinder assembly is used for continuously supercharging the operation cylinder, and the operation reversing valve is used for controlling the operation direction of the operation cylinder.
2. The engineering machinery valve-controlled pressure cylinder continuous operation device according to claim 1, wherein the pressure cylinder assembly comprises a double-piston-rod cylinder and a first multi-way valve, two oil outlets of the double-piston-rod cylinder are respectively communicated with the rodless cavity of the operation cylinder through a first check valve, and the first multi-way valve is connected with the double-piston-rod cylinder and used for controlling the double-piston-rod cylinder to reciprocate.
3. The continuous working device of the engineering machinery valve-controlled pressure cylinder according to claim 2, wherein two ends of the double-piston rod cylinder are respectively connected with the working reversing valve through a second one-way valve, and the second one-way valve is communicated with the first one-way valve on the same side of the double-piston rod cylinder.
4. The continuous operation device of the engineering machinery valve-controlled pressure cylinder according to claim 3, further comprising adjustable valves, wherein the adjustable valves are respectively connected with the operation reversing valve, the operation cylinder and the first multi-way valve, and the adjustable valves are used for controlling hydraulic oil to directly flow into the operation cylinder or controlling hydraulic oil to sequentially flow into the operation cylinder from the first multi-way valve and the double-piston-rod oil cylinder.
5. The engineering machinery valve-controlled pressure cylinder continuous operation device as claimed in claim 2, wherein the first multi-way valve is a two-position four-way solenoid valve.
6. The engineering machinery valve-controlled pressure cylinder continuous working device according to claim 1, wherein the pressure cylinder assembly comprises a second multi-way valve and a plurality of pressure cylinders, and the pressure cylinders are respectively arranged in a plurality of oil passages in the second multi-way valve.
7. The engineering machinery valve-controlled pressure cylinder continuous operation device as claimed in claim 6, wherein the second multi-way valve is a three-position two-way solenoid valve, and one pressure cylinder is arranged in each of two oil paths of the three-position two-way solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111602618.1A CN114215795A (en) | 2021-12-24 | 2021-12-24 | Engineering machine tool valve accuse formula pressurized cylinder continuous operation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111602618.1A CN114215795A (en) | 2021-12-24 | 2021-12-24 | Engineering machine tool valve accuse formula pressurized cylinder continuous operation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114215795A true CN114215795A (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111602618.1A Pending CN114215795A (en) | 2021-12-24 | 2021-12-24 | Engineering machine tool valve accuse formula pressurized cylinder continuous operation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114215795A (en) |
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2021
- 2021-12-24 CN CN202111602618.1A patent/CN114215795A/en active Pending
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