An online monitoring system for construction machinery hydraulic oil

A technology for monitoring systems and construction machinery, applied in the direction of fluid pressure actuation system testing, mechanical equipment, fluid pressure actuation devices, etc., can solve problems such as data differences, achieve large flow, prevent damage, and achieve maintainability protection Effect
CN103867535BActive Publication Date: 2016-05-04XCMG CONSTR MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XCMG CONSTR MACHINERY
Publication Date
2016-05-04

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Abstract

The invention relates to an online monitoring system for construction machinery hydraulic oil. The online monitoring system includes a first sampling pipe, a first thermometer, a first valve, an electromagnetic pump, a buffer oil pool, a third thermometer, a first oil sensor, and a pressure sensor And the oil return device; the oil inlet end of the first sampling pipe is connected with the oil return pipe of the engineering vehicle, and the oil outlet is connected with the oil inlet end of the electromagnetic pump. The first sampling pipe is provided with a first thermometer and a first valve, and the first valve It is closer to the electromagnetic pump than the first thermometer. The oil outlet of the electromagnetic pump is connected to the oil inlet of the buffer oil pool. The first oil sensor and the third thermometer are arranged on the buffer oil pool. A pressure sensor is arranged between the oil inlet ends of the oil device. The online monitoring system provided by the invention solves the difficult problem of sampling in the hydraulic system of engineering machinery vehicles, and realizes that the collected oil samples can not only reflect the operation status of the equipment in real time, but also can comprehensively determine the overall status of the system.
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Description

technical field

[0001] The invention relates to the field of construction machinery, in particular to an online monitoring system for hydraulic oil of construction machinery. Background technique

[0002] According to statistics, nearly 2 / 3 of the failures of the hydraulic system come from the pollution of the hydraulic oil medium. The hydraulic system of construction machinery is in a sealed and high-pressure environment, and the condition of the hydraulic oil medium cannot be directly reflected. A series of oil monitoring sensors currently on the market are affected by the special working conditions of construction machinery. The construction machinery vehicles have small working space, large vehicle vibration during work, harsh working environment, compact hydraulic system pipeline layout, and relatively narrow machine space. , the system pressure can reach 30-50 MPa, the flow rate is large, and the hydraulic oil temperature can reach 80°C-90°C. Temperature, flow rate, a...

Claims

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