A hydraulic control system, hydraulic oil flow control method, device and equipment
A hydraulic control system and hydraulic oil technology, which are applied in construction, mechanically driven excavators/dredgers, earth movers/shovels, etc., and can solve problems such as non-conforming effects
Active Publication Date: 2022-04-01
SHANGHAI SANY HEAVY IND
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Problems solved by technology
[0004] However, because the current hydraulic system usually makes the hydraulic oil preferentially flow into the hydraulic actuator with small load and small inertia, the actions performed by the hydraulic actuator do not conform to the effect brought by the operator's manipulation of the pilot handle.
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[0045] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them.
[0046] Accordingly, the following detailed description of the embodiments of the application, which are provided in the accompanying drawings, is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.
[0047] It should be noted that like numerals and letters denote similar items in the followi...
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The application provides a hydraulic control system, a hydraulic oil flow control method, device and equipment, which relate to the technical field of hydraulic excavators. The hydraulic control system may include: a pilot handle, a controller, an engine, a main pump, multiple electric proportional motors, a hydraulic oil tank, a main valve, and multiple hydraulic actuators; wherein, multiple electric proportional motors are connected between the main pump and the main valve In between, the controller communicates with the control terminal of the main pump, and can control the main pump to suck out the total required flow of multiple hydraulic actuators from the hydraulic oil tank; the controller is also communicated with the control terminals of multiple electric proportional motors , so as to control the corresponding electric proportional motor to discharge the hydraulic oil of the required flow rate to the working oil cylinder of each hydraulic actuator according to the required flow rate of each hydraulic actuator. By applying the embodiment of the present application, the action performed by the hydraulic actuator can be more in line with the effect brought about by the operator's manipulation of the pilot handle.
Description
technical field [0001] The present application relates to the technical field of hydraulic excavators, in particular, to a hydraulic control system, a hydraulic oil flow control method, device and equipment. Background technique [0002] With the continuous advancement of science and technology, hydraulic excavators are developing in the direction of intelligence and environmental protection. The quality of the hydraulic system design on the hydraulic excavator directly affects the comfort of the operator. [0003] At present, the control mode of the hydraulic system is mainly manifested as the main pump-main valve-executive agency. That is to say, during the operation of the hydraulic excavator, the operator can first control the main pump and the main valve to deliver hydraulic oil to the hydraulic actuator on the hydraulic excavator by manipulating the pilot handle, so that the hydraulic actuator performs the corresponding action. . [0004] However, because the curren...
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IPC IPC(8): E02F9/22E02F3/04
CPCE02F9/22E02F9/2264E02F3/04
Inventor 郭常振吴金河张国泰
Owner SHANGHAI SANY HEAVY IND