CN115013374A - Hydraulic oil path energy-saving control system and control method thereof - Google Patents

Hydraulic oil path energy-saving control system and control method thereof Download PDF

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Publication number
CN115013374A
CN115013374A CN202210627903.7A CN202210627903A CN115013374A CN 115013374 A CN115013374 A CN 115013374A CN 202210627903 A CN202210627903 A CN 202210627903A CN 115013374 A CN115013374 A CN 115013374A
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CN
China
Prior art keywords
oil cylinder
oil
cylinder
control valve
main
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Pending
Application number
CN202210627903.7A
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Chinese (zh)
Inventor
杨纪龙
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Jiangyin Chixin Machinery Manufacturing Co ltd
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Jiangyin Chixin Machinery Manufacturing Co ltd
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Priority to CN202210627903.7A priority Critical patent/CN115013374A/en
Publication of CN115013374A publication Critical patent/CN115013374A/en
Pending legal-status Critical Current

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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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/18—Control arrangements for fluid-driven presses controlling the reciprocating motion of the ram
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/18—Control arrangements for fluid-driven presses controlling the reciprocating motion of the ram
    • B30B15/186—Controlling the return movement of the ram, e.g. decompression valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/32—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars
    • B30B9/327—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars for briquetting scrap metal
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/07—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors in distinct sequence
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
    • F15B2013/004—Cartridge valves
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • F15B2013/0448—Actuation by solenoid and permanent magnet
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31588—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and multiple output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/88—Control measures for saving energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention relates to a hydraulic oil circuit energy-saving control system and a control method thereof, wherein the control system comprises a main oil cylinder (1) and a side oil cylinder (2) which are arranged on a hydraulic packing machine, and the front cavity and the rear cavity of the main oil cylinder (1) and the side oil cylinder (2) are connected with an oil inlet pipeline (5) through an oil inlet control valve (3) and connected with an oil return pipeline (6) through an oil return control valve (4); the rear cavity of the main oil cylinder (1) is connected with the front cavity of the side oil cylinder (2) through a pipeline of an intermediate control valve (7); the intermediate control valve (7) comprises a directional cartridge valve (8) and an electromagnetic directional valve (9); the control method comprises the steps of main cylinder advancing, side cylinder advancing, main cylinder retreating and cyclic control. The invention simplifies the piston retraction action of the oil cylinder of the packing machine, shortens the piston retraction time, improves the packing efficiency and reduces the energy consumption of a hydraulic system.

Description

Hydraulic oil path energy-saving control system and control method thereof
Technical Field
The invention relates to an energy-saving control system of a hydraulic oil circuit and a control method thereof, belonging to the technical field of hydraulic baling presses.
Background
The hydraulic oil circuit is a system for providing power or pressure for hydraulic equipment, in a hydraulic baling press, a main cylinder and a side cylinder of the baling press are controlled through a hydraulic system, loose waste metal materials are compressed in two directions to form a waste metal block, and the hydraulic baling press comprises the following specific working steps: 1. discharging waste metal materials into a packaging machine; 2. the hydraulic system controls the main cylinder piston to advance and compress; 3. the hydraulic system controls the piston of the side cylinder to advance and compress; 4. the hydraulic system controls the master cylinder piston to retreat; 5. the hydraulic system controls the piston of the side cylinder to retreat; 6. taking out the waste metal blocks, and repeating the steps for 1 to 5 to continuously pack the waste metal blocks. Due to the characteristics of the hydraulic oil circuit of the packaging machine, the steps are required to be executed one by one, and particularly, the two-step piston retraction action after the compression is finished is relatively long in time consumption, so that the packaging waiting time is too long each time, the packaging efficiency is low, and the energy consumption of a hydraulic system is relatively high.
Disclosure of Invention
The invention aims to overcome the defects and provide the hydraulic oil way energy-saving control system and the control method thereof, which simplify the piston retraction action of the oil cylinder of the packing machine, shorten the piston retraction time, and have high packing efficiency and low energy consumption.
The purpose of the invention is realized as follows:
a hydraulic oil path energy-saving control system comprises a main oil cylinder and a side oil cylinder which are arranged on a hydraulic packing machine, wherein the front cavity and the rear cavity of the main oil cylinder and the side oil cylinder are connected with an oil inlet pipeline through an oil inlet control valve and are connected with an oil return pipeline through an oil return control valve; the rear cavity of the main oil cylinder is connected with the front cavity of the side oil cylinder through a middle control valve pipeline; the intermediate control valve comprises a directional cartridge valve and an electromagnetic directional valve.
Further, the oil inlet control valve comprises a directional cartridge valve and an electromagnetic directional valve.
Further, the oil return control valve comprises a pressure type cartridge valve, an electromagnetic directional valve and an overflow valve.
A control method based on the hydraulic oil way energy-saving control system comprises the following control steps:
first, master cylinder advance: opening the oil inlet control valve of the rear cavity of the main oil cylinder to enable the rear cavity of the main oil cylinder to feed oil; opening a main oil cylinder front cavity oil return control valve to return oil to the main oil cylinder front cavity; the piston of the main oil cylinder advances to push the waste metal in the packaging machine to compress in the main direction;
step two, the side cylinder advances: after the main cylinder finishes advancing, the oil inlet control valve of the rear cavity of the side oil cylinder is opened to enable the rear cavity of the side oil cylinder to feed oil; opening an oil return control valve of a front cavity of the side oil cylinder to return oil to the front cavity of the side oil cylinder; the side oil cylinder piston advances to push the waste metal which is compressed in the main direction in the packaging machine to be compressed in the side direction;
step three, master cylinder retreating: after the side cylinder finishes advancing, the scattered waste metal is compressed into waste metal blocks, and the oil inlet control valve of the front cavity of the main oil cylinder is opened to enable the front cavity of the main oil cylinder to take oil; opening an oil return control valve of a rear cavity of the side oil cylinder to return oil to the rear cavity of the side oil cylinder; the electromagnetic directional valve of the middle control valve connected with the rear cavity of the main oil cylinder and the front cavity of the side oil cylinder is electrified, and the directional cartridge valve is opened, namely the middle control valve is opened, so that the hydraulic oil in the rear cavity of the main oil cylinder enters the front cavity of the side oil cylinder; the side oil cylinder piston synchronously retreats while the main oil cylinder piston retreats;
when the piston of the side oil cylinder retreats to the right position, the middle control valve is closed; closing the oil return control valve of the rear cavity of the side oil cylinder; opening a main oil cylinder rear cavity oil return control valve to enable a main oil cylinder piston to continuously retreat;
step four, cyclic control: and taking out the compressed waste metal blocks in the packaging machine, then loading the waste metal blocks to be packaged, and circularly executing the first step to the fourth step to finish the continuous packaging production of the waste metal blocks.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the oil return pipe and the oil inlet pipe are respectively additionally arranged in the rear cavity of the main oil cylinder and the front cavity of the side oil cylinder of the hydraulic packing machine and are communicated through the intermediate control valve, the retraction sequence and retraction mode of the pistons of the main oil cylinder and the side oil cylinder are improved, and the retraction of the piston of the side oil cylinder can be completed in the retraction process of the piston of the main oil cylinder, so that the working period of the retraction of the piston of the side oil cylinder is saved, the packing efficiency of the hydraulic packing machine is improved, and the energy consumption of a hydraulic system of the packing machine is reduced.
Drawings
Fig. 1 is a schematic diagram of a hydraulic oil path structure of a hydraulic oil path energy-saving control system according to the present invention.
Wherein:
the oil cylinder comprises a main oil cylinder 1, a side oil cylinder 2, an oil inlet control valve 3, an oil return control valve 4, an oil inlet pipeline 5, an oil return pipeline 6, a middle control valve 7, a directional cartridge valve 8, an electromagnetic directional valve 9, a pressure cartridge valve 10, an overflow valve 11 and a piston 12.
Detailed Description
Referring to fig. 1, the energy-saving control system for a hydraulic oil circuit according to the present invention comprises a main oil cylinder 1 and a side oil cylinder 2 which are installed on a hydraulic packer, wherein front cavities and rear cavities of the main oil cylinder 1 and the side oil cylinder 2 are connected with an oil inlet pipeline 5 through an oil inlet control valve 3, and are connected with an oil return pipeline 6 through an oil return control valve 4; the oil inlet control valve 3 comprises a directional cartridge valve 8 and an electromagnetic directional valve 9, and the electromagnetic directional valve 9 controls a control oil path leading to the directional cartridge valve 8 by an electric signal to control the opening and closing of the directional cartridge valve 8; the oil return control valve 4 comprises a pressure type cartridge valve 10, an electromagnetic directional valve 9 and an overflow valve 11, the electromagnetic directional valve 9 controls a control oil path leading to the pressure type cartridge valve 10 by an electric signal to control the opening and closing of the pressure type cartridge valve 10, and the overflow valve 11 ensures the pressure stability of the corresponding oil path; the oil inlet pipeline 5 is connected with an oil pump, a filter and a hydraulic station oil tank; the oil return pipeline 6 is connected with an oil tank of the hydraulic station; the rear cavity of the main oil cylinder 1 is connected with the front cavity of the side oil cylinder 2 through a pipeline of an intermediate control valve 7; the intermediate control valve 7 comprises a directional cartridge valve 8 and a solenoid directional valve 9.
A control method based on the hydraulic oil way energy-saving control system comprises the following control steps:
first, master cylinder advance: the electromagnetic directional valve 9 of the main oil cylinder 1 rear cavity oil inlet control valve 3 is electrified, and the main oil cylinder 1 rear cavity oil inlet control valve 3 is opened to enable the main oil cylinder 1 rear cavity to feed oil; opening a front cavity oil return control valve 4 of the main oil cylinder 1 to return oil to the front cavity of the main oil cylinder 1; the piston 12 of the main oil cylinder 1 advances to push the waste metal in the packaging machine to compress in the main direction;
step two, the side cylinder advances: after the main cylinder finishes advancing, the electromagnetic directional valve 9 of the oil inlet control valve 3 of the rear cavity of the side oil cylinder 2 is electrified, and the oil inlet control valve 3 of the rear cavity of the side oil cylinder 2 is opened to enable the rear cavity of the side oil cylinder 2 to feed oil; opening an oil return control valve 4 of the front cavity of the side oil cylinder 2 to return oil to the front cavity of the side oil cylinder 2; the piston 12 of the side oil cylinder 2 advances to push the waste metal which is compressed in the main direction in the packaging machine to be compressed in the side direction;
step three, master cylinder retreating: after the side cylinder finishes advancing, scattered waste metal is compressed into waste metal blocks, the electromagnetic directional valve 9 of the oil inlet control valve 3 of the front cavity of the main oil cylinder 1 is electrified, and the oil inlet control valve 3 of the front cavity of the main oil cylinder 1 is opened, so that oil enters the front cavity of the main oil cylinder 1; the electromagnetic directional valve 9 of the oil return control valve 4 of the rear cavity of the side oil cylinder 2 is electrified, and the oil return control valve 4 of the rear cavity of the side oil cylinder 2 is opened to return oil to the rear cavity of the side oil cylinder 2; the electromagnetic directional valve 9 of the middle control valve 7 connected with the back cavity of the main oil cylinder 1 and the front cavity of the side oil cylinder 2 is electrified, and the middle control valve 7 is opened, so that the hydraulic oil in the back cavity of the main oil cylinder 1 enters the front cavity of the side oil cylinder 2; the piston 12 of the side oil cylinder 2 synchronously retreats while the piston of the main oil cylinder 1 retreats;
when the piston 12 of the side oil cylinder 2 retreats to the position, the middle control valve 7 is closed; the oil return control valve 4 of the rear cavity of the side oil cylinder 2 is closed; opening a back cavity oil return control valve 4 of the main oil cylinder 1 to enable a piston 12 of the main oil cylinder 1 to continuously retreat;
step four, cyclic control: and taking out the compressed waste metal blocks in the packaging machine, then loading the waste metal blocks to be packaged, and circularly executing the first step to the fourth step to finish the continuous packaging production of the waste metal blocks.
In the process of piston retraction of the main oil cylinder 1, the return oil of the rear cavity of the main oil cylinder 1 enters the front cavity of the side oil cylinder 2, and the return oil of the rear cavity of the side oil cylinder 2 is opened at the same time, so that the pistons of the side oil cylinders 2 can be retracted simultaneously, and the piston retraction of the side oil cylinders 2 can be completed before the piston retraction of the main oil cylinder 1 is finished, so that the working period of piston retraction of one side oil cylinder 2 is saved, and the working efficiency of a hydraulic packing machine is improved.
In addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.

Claims (4)

1. The utility model provides a hydraulic circuit energy-saving control system, contains main cylinder (1) and side cylinder (2) of installing on hydraulic baling press, its characterized in that: the front cavity and the rear cavity of the main oil cylinder (1) and the side oil cylinder (2) are connected with an oil inlet pipeline (5) through an oil inlet control valve (3) and are connected with an oil return pipeline (6) through an oil return control valve (4); the rear cavity of the main oil cylinder (1) is connected with the front cavity of the side oil cylinder (2) through a pipeline of an intermediate control valve (7); the intermediate control valve (7) comprises a directional cartridge valve (8) and an electromagnetic directional valve (9).
2. The hydraulic oil circuit energy-saving control system according to claim 1, characterized in that: the oil inlet control valve (3) comprises a directional cartridge valve (8) and an electromagnetic directional valve (9).
3. The hydraulic oil circuit energy-saving control system according to claim 1, characterized in that: the oil return control valve (4) comprises a pressure type cartridge valve (10), an electromagnetic directional valve (9) and an overflow valve (11).
4. A control method of the hydraulic oil circuit energy-saving control system based on claim 1, characterized in that: comprises the following control steps:
first, master cylinder advance: an oil inlet control valve (3) of the rear cavity of the main oil cylinder (1) is opened, so that oil is fed into the rear cavity of the main oil cylinder (1); the oil return control valve (4) of the front cavity of the main oil cylinder (1) is opened to return oil to the front cavity of the main oil cylinder (1); a piston (12) of the main oil cylinder (1) advances to push waste metal in the packaging machine to compress in the main direction;
step two, the side cylinder advances: after the main cylinder finishes advancing, the oil inlet control valve (3) of the rear cavity of the side oil cylinder (2) is opened, so that oil is fed into the rear cavity of the side oil cylinder (2); the front cavity oil return control valve (4) of the side oil cylinder (2) is opened to return oil to the front cavity of the side oil cylinder (2); the piston (12) of the side oil cylinder (2) advances to push the waste metal which is compressed in the main direction in the packing machine to be compressed in the side direction;
step three, master cylinder retreating: after the side cylinder finishes advancing, scattered waste metal is compressed into waste metal blocks, and the front cavity oil inlet control valve (3) of the main oil cylinder (1) is opened to enable the front cavity of the main oil cylinder (1) to take oil; the oil return control valve (4) of the rear cavity of the side oil cylinder (2) is opened to return oil to the rear cavity of the side oil cylinder (2); a solenoid directional valve (9) of an intermediate control valve (7) connected with the rear cavity of the main oil cylinder (1) and the front cavity of the side oil cylinder (2) is electrified, a directional cartridge valve (8) is opened, namely the intermediate control valve (7) is opened, so that hydraulic oil in the rear cavity of the main oil cylinder (1) enters the front cavity of the side oil cylinder (2); the piston (12) of the side oil cylinder (2) synchronously retreats while the piston of the main oil cylinder (1) retreats;
when the piston (12) of the side oil cylinder (2) retreats to the right position, the middle control valve (7) is closed; the oil return control valve (4) of the rear cavity of the side oil cylinder (2) is closed; the oil return control valve (4) of the rear cavity of the main oil cylinder (1) is opened, so that the piston (12) of the main oil cylinder (1) continuously retreats;
step four, cyclic control: and taking out the compressed waste metal blocks in the packaging machine, then loading the waste metal blocks to be packaged, and circularly executing the first step to the fourth step to finish the continuous packaging production of the waste metal blocks.
CN202210627903.7A 2022-06-06 2022-06-06 Hydraulic oil path energy-saving control system and control method thereof Pending CN115013374A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210627903.7A CN115013374A (en) 2022-06-06 2022-06-06 Hydraulic oil path energy-saving control system and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210627903.7A CN115013374A (en) 2022-06-06 2022-06-06 Hydraulic oil path energy-saving control system and control method thereof

Publications (1)

Publication Number Publication Date
CN115013374A true CN115013374A (en) 2022-09-06

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ID=83072322

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210627903.7A Pending CN115013374A (en) 2022-06-06 2022-06-06 Hydraulic oil path energy-saving control system and control method thereof

Country Status (1)

Country Link
CN (1) CN115013374A (en)

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