The inevitable trend of the development of 1-way machinery, 1 what is the status of the repair status of the repair type of repair equipment based on the state of equipment maintenance, also known as preventive maintenance. State repair is based on the equipment's regular inspections, regular inspections of information provided by condition monitoring and fault diagnosis, through the analysis of juice and data processing, to determine the degree of deterioration of the equipment, and to plan for proper maintenance before the failure of the cattle . This kind of maintenance method can timely repair the equipment in a targeted manner and not only ensure that the equipment is in a good state of technology, but also allows the design and production of the technical specifications and safety devices, and the 8 and 0810075028056 specifications. In addition to all the safety devices specified in the 08耵0054 Construction Lift Technical Conditions and the 10055 Construction Elevator Safety Rules, a wide overload protection device and an automatic leveling device have also been added, which has been highly praised by the appraisal experts and users. 6 The testing and appraisal passed the inspection and appraisal of scientific and technological achievements of the National Construction Machinery Quality Supervision and Inspection Center on October 29, 1999. 22 Construction Machinery Technology and Management 2000.1 The life of the parts used effectively avoids under-maintenance or over-maintenance. 2 Prerequisites for the implementation of state repair 2.1 State repair Since the state of the equipment is based on the state of the equipment, the status of the construction machinery must be repaired, first of all to make the construction machinery in a controlled state. A variety of equipment and methods are used to monitor the status of the construction machinery, clarify the state of the construction machinery, and thus propose different status repair tasks for different states. 2.2 Determine the object of condition monitoring for different construction machinery. The state repair of a construction machine is not aimed at the entire system. If it is not clear, the state repair will lose its significance. According to the structure of the construction machinery and the working characteristics of each part, the main principle is to ensure that the equipment is in a good state of technology and the maintenance cost is reduced. The state of the main system components is repaired, and the auxiliary parts are repaired afterwards. The main system components are the traveling system and the operating system, including the working device and brake system of the hydraulic transmission system of the hydraulic torque converter of the engine. They directly determine the safety and construction quality of the transmission system 63. If a fault occurs + it is easy to find and handle. State repairs should be used; auxiliary parts include lighting and air conditioning, etc. This part has little to do with construction quality, failures are easy to handle, and post-service maintenance 2.3 can be used to determine scientific limit state standards for different construction machines and different parts. The implementation of state repairs is to rationalize the technical status of the construction machinery with the 6.1 prototype. Adopting a parallel drive on top of the drive and increasing the overload protection device. At the same time, the eddy current-regulation programmable logic controller technology should be reduced to 3, fade, pray, and hope to increase the effective space in the cage. , The noise inside the cage is reduced, which can prevent the overload operation, realize the high-speed operation of the construction elevator at low speed and braking, and can pre-select the floors, achieve the shop's dynamic acceleration operation, deceleration and leveling, automatic control, and improve the efficiency and increase the occupant's comfort. Sex and safety; 6.2 prototype technical performance parameters meet the design requirements. And in line with, 80,052 standards such as the requirements of 0054 and other standards, complete safety devices, flexible and reliable action to meet the requirements of the 10055 standard. Compared with Class 1 ordinary and FM elevators, its comprehensive economic and technical performance index ranks the leading domestic level, and has a good promotion and application prospects. Commonly used monitoring technology 3.1 Condition monitoring uses a variety of monitoring devices to determine the status of the identified devices. Or non-real-time on-line or off-line regular or continuous monitoring and monitoring techniques are carried out on a regular basis to obtain a large amount of operational status information, and state-of-the-art repairs are carried out on construction machinery, which can basically achieve the scientific nature of repairs. . Any important significance can now improve the equipment management level to improve the reliability and maintainability of the equipment; avoid the occurrence of major accidents. Reducing the hazards of accidents; obtaining potentially huge economic and social benefits, 1 Qu Liangsheng, Mechanical Failure 3 Diagnostics, Shanghai Science and Technology Press, December 1986. 2 Sun Huiguo, Equipment Condition Monitoring and Fault Diagnosis, Mechanical Industry Press, 1993 51 3 Hehe Ji, Mechanical Fault Diagnosis Consortium 5, Metallurgy, Industry Press, 19, Construction Machinery Technology and Management 2000.123 Comparison of limit states, thereby formulating A reasonable state repair process standard is used as a relative standard for the value measured in the normal state of the system component, and the relevant data of the system component as a limit state value is determined and adjusted according to the expert's experience. 3 How to carry out state repair The specific process of mechanical state repair is divided into state monitoring, analysis, diagnosis, and prevention and prevention phases. 1 The inspection of engineering equipment and equipment to monitor the shutdown maintenance to determine whether its working state is only required to determine the monitoring period requires a long-term exploration. During the process of tiredness, the frequency of work of different parts of the machinery is different from that of the environment itself. The monitoring period is not possible. The reference period is tentatively determined first, and then gradually adjusted according to the statistics of the daily monitoring data of the site and the average fault clearance time of each component. Condition Monitoring Prerequisites and Fundamentals of Conditional Conditioning Engineering Machinery Conditioning Techniques Used in Monitoring Techniques Methods of Monitoring Component Status Instruments 3.2 Analytical Diagnosis To be able to accurately diagnose the presence or absence of equipment faults, deep analysis and research are required, and various symptoms or signs are required. There is a close relationship between failures and how to derive this relationship. Many diagnostic theories and methods have emerged, including statistical identification of fuzzy logic neural networks, fuzzy neural networks and multi sensor fusion technologies, etc., which are collected and extracted. The symptom parameters determine the state of the construction machinery and are compared with the defined limit state standards. Identify and determine if the equipment is faulty, and if so, explain the nature and degree of the decision. Analytical diagnosis is the most critical step in state restoration. 3.3 Governance Prevention When the decision is diagnosed as having a fault or potential failure, consideration must be given to the management and prevention of equipment failures, including the maintenance of the remaining life of certain key components and the timely provision of spare parts. 4 The significance of implementation status modification Key monitoring, sensor signal processing device indication extraction device diagnosis decision-making prevention and prevention status recognition. Device Monitoring Technology Monitoring, Method Monitoring Device Monitoring Equipment Status Nondestructive Testing Ultrasonic Inspection Axle Drive Shaft Brake System Steel Structure Cylinder Spectroscopic Analysis Engine Hydraulic Torque Converter Gearbox Hydraulic System Oil Sample Analysis Ferrography Analysis All Closed Lubrication Systems Fluid Systems Mffft All Closed Lubrication Systems Hydraulic System Oil Vibration Detection Bearing Gearbox Engine Air Compressors Torque Converters, Honey Treatments, etc. Causes Surface and Subsurface Cracking and Corrosion Internal Defects Caused by Elemental Concentration Analysis The wear and tear of components is analyzed by the concentration of the elements in the oil sample to analyze the degree of fatigue and corrosion of the component. The degree of viscosity contamination of the component is caused by fatigue, damage, asymmetry, misalignment, and vibration characteristics caused by mechanical loosening. Inspectors Spectrometers Analyzers Ferrographs Analyzers Oil Testers Viscosity Testers Mechanical Vibration Diagnostic Controls Preventative Condition Monitoring Energy Forms ± Signatures Characteristic Signals in the Form of State Direct Physical State Analysis Diagnostics
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