Integrated automatic alarm device of hydraulic system

Abstract

The invention relates to an integrated automatic alarm device of a hydraulic system. The integrated automatic alarm device of the hydraulic system comprises a control box, wherein a control data display instrument, a fault indicating lamp, an alarm apparatus, a reset switch and a relay are arranged inside the control box. The device is efficient and compact; and after fault alarm occurs, field staff do not need a control center or doe not need to inform the staff of the control center of carrying out check operation on a fault control cabinet and then carrying out field maintenance, the device can intensively display an alarm signal of the hydraulic system on the spot, directly obtain fault information and carry out timely maintenance according to the fault indicating lamp. The device also has intelligent alarming and resetting functions; the reset switch is pressed when the alarm apparatus twinkles and buzzes, and the alarm apparatus stops twinkling and buzzing; meanwhile, the fault indicating lamp still displays the alarm position until the fault is eliminated; and the alarm apparatus twinkles and buzzes, and so forth until the fault is eliminated if the alarm fault is not relieved after set resetting time of the device is achieved.

Description

technical field [0001] The invention relates to a hydraulic system integrated automatic alarm device. Background technique [0002] The hydraulic system is a complete set of devices that use oil as the working medium and use the oil pressure to control the work of the hydraulic actuator through the control valve and other accessories. Its unique advantages include wide process adaptability, excellent control performance and relatively low cost. Advantages, widely used in various fields. The quality of a hydraulic system depends on the rationality of the system design and the quality of the system components. At the same time, hydraulic oil is the blood of the hydraulic system, and its quality and operating status are particularly important in the hydraulic system. In modern hydraulic systems, the requirements for oil are extremely strict. The temperature, liquid level and cleanliness of hydraulic oil are important parameters that directly affect the normal operation of the ...

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Problems solved by technology

[0003] Excessive hydraulic oil temperature will affect the stability of the hydraulic oil, thereby affecting the sealing, life and transmission efficiency of the entire hydraulic system, and then the actuators will move slowly and weakly, and even cause serious consequences; if the hydraulic oil temperature is too low, other Viscosity increases, fluidity is poor, resistance is large, work efficiency is low, seal hardening occurs while affecting sealing performance, and even oil leakage occurs

If the liquid level of the hydraulic oil tank is too low, the hydraulic pump will be sucked empty, and the pump body will be damaged for a long time, and the entire hydraulic system lacks a power source, which will affect the operation; After the hydraulic oil returns to the oil, it will fill the oil tank and overflow from the top of the oil tank, with serious consequences

The solid pollutants in the hydraulic oil will cause cutting wear, fatigue wear or erosion wear on the surface of the parts; the water and oxidative deterioration products in the hydraulic oil will corrode the components; the cavitation caused by the air in the hydraulic oil will also cause The surface of the component is corroded and damaged, and these oil pollution will reduce the performance and service life of the hydraulic component, putting the equipment in a dangerous state

[0004] Due to the significant impact of hydraulic oil performance on the hydraulic system, it is very necessary to establish an efficient hydraulic alarm system. However, the current hydraulic system alarm devices are mostly installed in the control cabinet of the control center, which is far away from the equipment site. When the hydraulic system fails, the on-site personnel cannot find out in time and quickly and effectively judge the fault, and carry out timely troubleshooting. At the same time, they do not have an accurate grasp of the certainty of whether the fault is eliminated

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