Servo online oil sampling and controlling device and method

A sampling control and oil technology, applied in the direction of sampling devices, etc., can solve problems such as delays in the determination of mechanical equipment, and achieve the effects of long transmission distance, flexible application, and fast transmission speed

Active Publication Date: 2014-04-16
GUANGZHOU MECHANICAL ENG RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of offline oil monitoring and analysis, the most important thing is to regularly sample lubricating oil. Since it is impossible to send it to various professional testing laboratories for analysis and evaluation in time, it may delay the judgment of mechanical equipment failures; at the same time, in order to meet the needs of large-scale continuous operation equipment, key Equipment and equipment with high safety requirements require real-time on-site monitoring and diagnosis, and the use of online monitoring technology for lubricating oil is particularly necessary

Method used

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  • Servo online oil sampling and controlling device and method
  • Servo online oil sampling and controlling device and method
  • Servo online oil sampling and controlling device and method

Examples

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Embodiment 1

[0035] The structure of a servo online oil sampling control device in this embodiment is as follows: figure 1 As shown, it includes power conversion unit 1, CAN communication unit 2, ARM chip 3, information collection and feedback unit 4, motor type brushless DC water pump 5, control drive unit 6, self-protection unit 7, solenoid valve 8, DC power interface 9 . Power conversion unit 1 is connected to CAN communication unit 2, ARM chip 3, information collection and feedback unit 4, control drive unit 6, self-protection unit 7, solenoid valve 8, and DC power interface 9, and ARM chip 3 is connected to CAN communication unit 2 , information collection feedback unit 4, control drive unit 6, self-protection unit 7, solenoid valve 8 are connected, control drive unit 6 is respectively connected with self-protection unit 7, motor type brushless DC water pump 5, DC power interface 9, information collection feedback The unit 4 is connected with the motor-type brushless DC water pump in...

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Abstract

The invention discloses a servo online oil sampling and controlling device and a method. The servo online oil sampling and controlling device comprises a water pump, a direct current power supply interface, a power supply conversion unit as well as a CAN (Controller Area Network) communication unit, an ARM (Advanced Reduced Instruction Set Computer Machine) chip, an information acquisition and feedback unit, a control driving unit and a solenoid valve which are respectively connected with the power supply conversion unit, wherein the ARM chip is used for realizing the dual closed-loop control for the sampling amount and the flow speed of a sample by the control driving unit; and during detection, the solenoid valve is opened and oil enters the device under the action of the water pump. The method is realized in such a way that when the water pump works, the information acquisition and feedback unit is used for acquiring an rotating angle and speed of a water pump impeller in real time and transmitting the rotating angle and speed to the ARM chip; and the ARM chip is used for calculating a fed signal valve and then comparing the calculated signal valve with expected values of the given sampling amount and the flow speed of the sample and further adjusting the operation state of the water pump according to the difference between the calculated signal valve and the expected values. The servo online oil sampling and controlling device and the method disclosed by the invention have the advantages of simple structure, high calculation speed, high communication efficiency, convenience in expansion and self-protecting function of current closed loop.

Description

technical field [0001] The invention relates to the technical field of state monitoring and fault diagnosis of a friction lubrication system of mechanical equipment, in particular to a servo online oil sampling control device and method. Background technique [0002] The lubricating oil used in mechanical equipment has the functions of reducing the frictional resistance between the surfaces of parts, reducing the wear of surface materials, ensuring the safe and reliable operation of equipment, and prolonging the service life of equipment. It is an essential working medium for industrial machinery and equipment. However, the performance of lubricating oil will decay under long-term shear, frictional heat, pollution, etc., which directly affects the lubrication performance of friction pairs of machinery and equipment. At present, the performance evaluation of lubricating oil in use is mainly through offline sampling and analysis. [0003] Lubricating oil off-line monitoring te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/14
Inventor 贺石中陶辉陈闽杰冯伟
Owner GUANGZHOU MECHANICAL ENG RES INST
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