Hydraulic control system, hydraulic oil flow control method, device and equipment
A technology of hydraulic control system and hydraulic oil, which can be used in earth movers/shovels, mechanically driven excavators/dredgers, construction, etc., and can solve problems such as non-compliance with effects
Active Publication Date: 2020-08-14
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 invention provides a hydraulic control system, a hydraulic oil flow control method, device and equipment, and relates to the technical field of hydraulic excavators. The hydraulic control system can comprise a pilot handle, a controller, an engine, a main pump, a plurality of electric proportional motors, a hydraulic oil tank, a main valve and a plurality of hydraulic executing mechanisms, wherein the plurality of electric proportional motors are connected between the main pump and the main valve, the controller is in communication connection with the control end of the main pump and can control the main pump to suck out the total required flow of the plurality of hydraulic executing mechanisms from the hydraulic oil tank, the controller is further in communication connection with thecontrol ends of the multiple electric proportional motors so as to control the corresponding electric proportional motors to discharge hydraulic oil of the required flow to working oil cylinders of the hydraulic executing mechanisms according to the required flow of the hydraulic executing mechanisms. By applying the embodiment of the invention, the actions executed by the hydraulic execution mechanisms can better conform to the effect brought by an operator to control 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