Electric cylinder buffer control system for excavator based on torque control of servo system
A technology of servo system and buffer control, which is applied in the direction of earth mover/shovel, construction, etc., to achieve the effect of improved intelligence, good safety and long life
Pending Publication Date: 2022-05-13
西安方元明鑫精密机电制造有限公司
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Problems solved by technology
An electric cylinder buffer control system for excavators based on servo system torque control, which can greatly reduce the situation that the electric cylinder is damaged due to instantaneous excessive force under the action of impact load, and solves the above problems to a large extent
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[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0015] according to figure 1 As shown, the programmable controller 1 is connected to the servo system 2 through a communication cable, and the servo system 2 is connected to the stick electric cylinder 6, bucket electric cylinder 7, and boom electric cylinder 8 through power cables, Encoder cable and limit switch cable connection.
[0016] Specifically, when the servo system i...
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The invention provides an electric cylinder buffering control system for an excavator based on servo system torque control, relates to the technical field of excavators in engineering vehicles, and provides a control method for buffering of an electric cylinder for an excavator, and the electric cylinder buffering control system comprises a programmable controller, a servo system, a bucket rod electric cylinder, a bucket electric cylinder, a movable arm electric cylinder and an electric cabinet. A more open servo system is configured, torque control is realized through a self-adaptive algorithm according to different working conditions and different control parameters, and meanwhile, the speed under a certain torque value is controlled, so that when an impact load arrives, an electric cylinder is the same as a hydraulic cylinder and has certain displacement in the direction of the impact load force; therefore, the buffering gain effect of the electric cylinder is achieved, the service life of the electric cylinder for the excavator is prolonged, and work is stable, durable, safe and controllable.
Description
technical field [0001] The invention provides an electric cylinder buffer control system for an excavator based on torque control of a servo system, and relates to the technical field of engineering vehicles. Background technique [0002] With the rapid development of science and technology, excavators are widely used in fields such as mines, bridges, farmland renovation, landscaping, pipeline construction, stonework, and quarrying aggregates. The emergence of the excavator's electric actuation system has improved the efficiency of the excavator system and made it easier to control, thereby saving energy and laying the foundation for the future development of intelligent excavators. However, as the king of engineering vehicles, excavators are It is used in a wide range of fields. In the case of impact, the electric cylinder of the electric actuation system is a hard-connected structure of push rods, leadscrews, and gears. Unlike hydraulic systems, which have hydraulic oil, w...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E02F9/20E02F9/22
CPCE02F9/20E02F9/2025E02F9/2058E02F9/22E02F9/2203E02F9/2221E02F9/2246E02F9/2264Y02P90/02
Inventor 蒋艳宋力陈一民
Owner 西安方元明鑫精密机电制造有限公司