Excavator roll-over protection control system and control method
A protection control and excavator technology, which is applied to mechanically driven excavators/dredgers, earth movers/shovels, construction, etc., can solve the problem of limited protection of the anti-rollover structure of excavators and prevent them from being crushed Effect
Active Publication Date: 2016-11-23
LIUZHOU LIUGONG EXCAVATORS +2
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide an excavator rollover protection control system and control method to prevent the excavator from rolling over, aiming at the limited protection of the existing excavator relying on the anti-rollover structure of the cab
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[0014] The specific implementation will be described below in conjunction with the accompanying drawings.
[0015] Such as figure 1 As shown, the excavator rollover protection control system in this embodiment includes a slewing platform on which an articulated boom 2, a high-pressure oil source, and a hydraulic oil tank are arranged; The boom cylinder 3 that the boom rotates and lifts around the hinge point also includes a controller 7, an inclination sensor 4 that detects the inclination of the excavator, and an electromagnetic control device is connected to the pipeline of the boom cylinder 3. The inclination sensor 4 and the controller 7 The input terminal of the controller 7 is connected with the electromagnetic control terminal of the electromagnetic control device.
[0016] The electromagnetic control device includes a pilot valve 8, a pilot oil source 9 connected to the pilot valve 8, a reversing control valve 5 for controlling the lifting of the boom cylinder 3, and ...
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The invention relates to an excavator mechanism. In order to solve the problem that an existing excavator cab roll-over protection structure function is limited, the invention provides an excavator roll-over protection control system, which comprises a controller, a tilt angle sensor for detecting a tilt angle of an excavator, and an electromagnetic control device connected onto a pipeline of a boom cylinder. The tilt angle sensor is connected with the controller; the output end of the controller is connected with an electromagnetic control end of the electromagnetic control device; and when the electromagnetic control device detects that the tilt angle of the excavator is larger than a preset value, the controller controls the electromagnetic control device to enable a big cavity of the boom cylinder to be connected with a high-pressure oil source, and enable a small cavity of the boom cylinder to communicate with a hydraulic oil tank. According to the excavator roll-over protection control system provided by the invention, when the excavator is about to roll over, the big cavity of the boom cylinder is connected with the high-pressure oil source, the small cavity communicates with the hydraulic oil tank, a piston rod of the boom cylinder stretches out, and a boom is lifted up, so that the boom can prevent the excavator from continuously rolling over, and meanwhile, the boom can support a cab so as to prevent the cab from being collapsed when the excavator rolls over.
Description
technical field [0001] The invention relates to an excavator control, more specifically, to an excavator rollover protection control system and control method. Background technique [0002] Excavators are known as the king of construction machinery. They often work in harsh working environments, such as working on slopes, and various accidents caused by this happen from time to time. According to statistics, rollover accidents account for about 60%. When the excavator rolls over during operation, the working device cannot effectively support the reasonable position of the cab due to the unreasonable posture of the whole machine, which causes large deformation of the cab. The cab caused continuous impact, causing casualties. [0003] The main cause of casualties in rollover accidents is due to the extreme deformation and breakdown of the cab. At present, relevant manufacturers have developed a cab with rollover protection capability. This cab achieves the purpose of protect...
Claims
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IPC IPC(8): E02F3/43
CPCE02F3/435
Inventor 邢树鑫李健卢春霖
Owner LIUZHOU LIUGONG EXCAVATORS