Early warning method for judging defect of kinematic pair of mechanical equipment through variable value

A technology of mechanical equipment and kinematic pair, which is applied to the early warning of mechanical equipment kinematic pair defects and the early warning field of variable value judgment of mechanical equipment kinematic pair defects. The effect of avoiding the phenomenon of missed alarm

Active Publication Date: 2019-07-05
周建全
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method takes into account the influence of ambient temperature, the ambient temperature involved is obtained by using the principle of mathematical statistics, which cannot directly reflect the ambient temperature in which the equipment operates, and cannot accurately provide an alarm basis.

Method used

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  • Early warning method for judging defect of kinematic pair of mechanical equipment through variable value
  • Early warning method for judging defect of kinematic pair of mechanical equipment through variable value
  • Early warning method for judging defect of kinematic pair of mechanical equipment through variable value

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The present invention is implemented on the coal crusher equipment of a power plant in a certain city in Liaoning, China, and monitors the coal crusher equipment bearings.

[0053] (1) Obtain the ambient temperature T of the kinematic pair of the coal crusher hi

[0054] Select the upper bearing end cover of the non-operating coal crusher equipment that is mutually prepared with the running coal crusher equipment as the effective point of the ambient temperature, and obtain the ambient temperature T of the coal crusher equipment through the measurement of the effective point of the ambient temperature hi , see figure 1 Curve 4 in

[0055] (2) Obtain the working temperature T of the motion pair fi

[0056] Select the bearing end cover of the running coal crusher equipment as the effective point of the working temperature of the kinematic pair, and obtain the working temperature T of the kinematic pair by measuring the effective point of the kinematic pair fi , see ...

Embodiment 2

[0064] The invention is implemented on the belt conveyor driven roller equipment of a power plant in a certain city in Jilin, China, to monitor the belt conveyor driven roller bearings.

[0065] (1) Obtain the ambient temperature T of the kinematic pair of the driven roller equipment of the belt conveyor hi

[0066] Select the upper bearing end cover of the non-operating belt conveyor driven pulley equipment that is mutually prepared with the driven pulley equipment of the belt conveyor as the effective point of the ambient temperature, and obtain the ambient temperature T of the driven pulley equipment of the belt conveyor by measuring the effective point of the ambient temperature hi , see figure 2 Curve 4 in

[0067] (2) Obtain the working temperature T of the motion pair fi

[0068] Select the bearing end cover on the driven pulley equipment of the running belt conveyor as the effective point of the working temperature of the kinematic pair, and obtain the working tem...

Embodiment 3

[0076] The invention is implemented on a cantilever belt reducer of a bucket wheel stacker and reclaimer in a certain port of a certain city in Hebei, China, and monitors the high-speed shaft of the reducer.

[0077] (1) Obtain the ambient temperature T of the motion pair of the reducer hi

[0078] The steel structure of the support seat of the reducer is selected as the effective point of the ambient temperature, and the ambient temperature T of the reducer is obtained by measuring the effective point of the ambient temperature hi , see image 3 Curve 4 in

[0079] (2) Obtain the working temperature T of the motion pair fi

[0080] Select the end cover of the high-speed shaft bearing of the reducer as the effective point of the working temperature of the kinematic pair, and obtain the working temperature T of the kinematic pair by measuring the effective point of the kinematic pair fi , see image 3 Curve 3 in

[0081] (3) Obtain the design temperature T of the kinemat...

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Abstract

The invention discloses an early warning method for judging a defect of a kinematic pair of mechanical equipment through a variable value. Through establishment of a relation between an early warningvalue of the defect of the kinematic pair of the mechanical equipment and the environment temperature, the early warning value of the defect of the kinematic pair of the mechanical equipment is converted into a temperature variable value from a temperature constant value, a problem of early warning or probability of the defect of the kinematic pair of the mechanical equipment under the unstable environment temperature condition is solved, and the occurrence of a leakage alarm phenomenon is avoided.

Description

technical field [0001] The invention discloses an early warning method for judging the defects of mechanical equipment kinematics by changing values, and in particular relates to an early warning method for judging the kinematics defects of mechanical equipment affected by ambient temperature, which belongs to the technical field of early warning of fatigue damage of mechanical equipment kinematics . Background technique [0002] In many industries such as water conservancy, electric power, transportation, transportation, petroleum, chemical industry, mining, metallurgy, manufacturing, etc., the early warning of mechanical equipment movement defects is based on constant temperature (such as domestic known technology, imported equipment 80 ℃, domestic equipment 60 ℃ ) as the judgment basis, and also includes the defect judgment method based on the design extreme value as the warning basis disclosed in the applicant's previous patent "A Method for Improving the Complexity of M...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 孙继武姜有臣王东方王玉忠江利丰刘欢刘欣周建全
Owner 周建全
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