I. Maintenance:
The maintenance of equipment has routine maintenance and regular maintenance of two kinds.
(a) routine maintenance:
Routine maintenance is referred to as daily maintenance. Where the use of equipment in the workshop should be daily maintenance, daily maintenance of the work undertaken by the operator himself. The purpose of daily maintenance is to extend the service life of the equipment to create a safe and comfortable working environment.
Daily maintenance is divided into the daily maintenance of each shift and the weekend routine maintenance, must be institutionalized and standardized. The specific requirements for daily maintenance are as follows:
A. Maintenance of each shift: single-shift system operators, pre-shift inspection of the parts of the equipment, refueling in accordance with the provisions of the equipment before starting in accordance with the provisions of the key parts of the inspection. This inspection is based on sensory inspection, to confirm that there are no hidden problems before starting conditions, there are hidden problems, we must find the cause, troubleshooting before starting. Multi-shift system operators must first read the shift diary when taking over, and then check the state of the equipment to see if it matches the contents of the shift diary, if it meets the results of the inspection, before signing the diary.
Operation and maintenance procedures should be strictly observed during operation, pay attention to the operating conditions, or through the senses to observe whether the equipment is normal, and find abnormalities to be dealt with in a timely manner or report. Before leaving work at the end of the shift, the operator should make a comprehensive maintenance of the equipment, especially to wipe the guide rail, screw, gears, etc., to remove iron filings, etc., the machine paint surface and the surrounding environment should also be cleaned up, and do a good job of handing over the work and fill in the handover diary.
B, weekend maintenance: a more thorough cleaning and wiping of the equipment; key equipment and fine, large and rare equipment for the weekend maintenance time of 2h or more, by the equipment operator, inspection mechanics to help solve difficult problems, the workshop director and team leader at the scene to supervise the implementation.
(2) regular maintenance:
Equipment regular maintenance, maintenance by the Ministry of Equipment and Power maintenance section according to the production and equipment operation scheduling maintenance (overhaul) plan, generally once a year, scheduled for the production off-season, and the vice president of production consultation scheduling staggered shutdown maintenance plan, while the plan is issued to the business unit equipment section to implement. Key equipment and fine, large and rare equipment are maintained by the maintenance section of the equipment and power department, and general equipment is maintained by the machine shop group of the equipment section of the division.
The main contents of regular maintenance are:
A, dismantle and inspect the parts of the equipment that are not easy to maintain;
B, thoroughly clean the exterior and interior of the equipment, unclogging the oil circuit, and refreshing the paint;
C, clean and replace the linoleum, oil ropes, and oil filter;
D, adjust the fit of each part and replace the worn-out parts;
D, adjust the fit of each part;
D, replace the worn-out parts;
D, replace the worn-out parts;
D, replace the worn-out parts. parts;
E, tighten the parts of each part of the screw;
F, electrical, circuit part of a thorough inspection, aging wires to be replaced.
Regular maintenance is completed, maintenance mechanic should have been adjusted, repaired, replaced parts and parts in the machine resume card on the record, equipment section chief by unit inspection and acceptance of quality control, the machine operator test, and at the same time in the resume card the column after the signature.
Two, equipment inspection:
(a) the meaning of inspection:
In the operation of the equipment, some key parts of the normal operation of the equipment affecting the operation of the technical standardization of the inspection and maintenance work, so that the management of the work to form an institutionalized system, which is called the point of inspection of the equipment.
Equipment inspection can be divided into inspection and maintenance inspection and operator inspection of two kinds. Inspection and maintenance inspection refers directly to the equipment section management and organization of the inspection work, it is mainly applicable to key equipment and fine, large, rare equipment key parts; operator inspection is usually managed and organized by the production department, the object of operation is the general equipment and key equipment or fine, large, rare equipment, the general parts.
Additionally, according to the length of the inspection interval and the different contents of the inspection, can also be divided into daily inspection, regular inspection of two categories.
A, daily inspection:
Daily inspection to sensory inspection, carried out by the equipment operator, the key parts of the equipment for the technical status of the inspection, to understand the equipment in operation, sound, vibration, oil pressure, oil temperature and so on whether the normal, and the equipment to carry out the necessary sweeping and wiping, lubrication, so that the bolts are tightened, etc., the point of view of the card is generally hung on the machine. End of the month inspection machine repair change card, the old card to the equipment section chief to save.
Operators daily inspection points
Sensory inspection content and points
Visual
1, instrumentation: grasp the indicator value of each instrument (including current, rotation, pressure, temperature, and other), as well as the state of the indicator, will observe the value of the value of the normal value of the comparison;
2, lubrication: observation of the state of lubrication, the amount of oil, leakage and pollution;
3, wear and tear: equipment damage, corrosion, wear and tear creep, clogging and others;
4, cleanup: equipment and surrounding clean.
Auditory
Check for abnormal sounds, fully grasp the sound of the normal daily operation of the equipment under the state of sound, common examples of abnormal sounds are as follows:
1, playing sound: fastening parts of the bolts are loose, compressor metal abrasion;
2, metal sound: gears are not well bitten, coupling bushings are worn, bearings are poorly lubricated;
3, Rumble: poor contact with magnets in electrical parts, motor phase loss;
4, noise: ("chirp - chirp -" periodic ringing sound) pump cavitation, blower wheezing
5, intermittent sound: bearing mixed with foreign objects.
Tactile
1, the temperature of any abnormalities:
A, the temperature of the hand: feel the degree of body temperature is comparable to the temperature in the range of about 30 ~ 35 ℃; bath water temperature of 40 ℃ or so;
B, the temperature of the hand touch can be tolerated for a few seconds: 60 ℃ or so;
C, the hand touch can not be endured by the temperature: 70 ℃ or more.
2, there is no abnormal vibration:
A, fully grasp the vibration of the equipment under normal operation;
B, the cause of vibration is mostly for the reciprocating operation of the equipment fastening bolts loose, as well as rotating equipment, such as imbalance;
C, high-speed operation of the equipment, if vibration, will result in the destruction of the equipment, so it should be paid special attention to.
Smell
1, motor, transformer, etc., there is no overheating or short-circuit caused by sparks, or insulating materials are burned, etc.;
2, chemicals, gases, etc., there is no leakage.
Equipment inspection card
B, regular inspection
Regular inspection by the inspection mechanic, with the senses and special testing tools regularly on the technical state of the equipment to check and determine. Regular inspection focuses on the task of determining the degree of deterioration of equipment, accuracy and performance. The main purpose is to find out the defects and faults of the equipment, to determine the repair program and repair time, to ensure that the equipment to maintain the required performance. The object is mainly key equipment and fine, large and rare equipment. Regular inspection card is usually placed in the inspection and maintenance office.
(B) the principle of determining the inspection point and the implementation of the inspection method:
Often the key parts of the equipment and the weak links are listed as checkpoints, but this is the structure of the equipment, the working conditions, the production process, and the status of the equipment in the production of a great deal of relationship, it is necessary to make a comprehensive consideration.
To carry out the inspection of the methods used and operating conditions are in accordance with the requirements of the point of inspection to develop, such as the need to disassemble the equipment for inspection, only by sensory inspection or the use of detection instruments for inspection, whether the need to stop the inspection, etc., once determined to become a standardized system of operation, the point of inspection personnel (operators, inspections, mechanics) shall not be arbitrary changes.
In order to ensure that all inspections are carried out on schedule, the Ministry of Equipment and Power to develop a point of inspection management regulations, seriously do award, do not do or do not do the penalty, inspection mechanic is responsible for checking the operator's daily point of inspection card, the equipment section chief is responsible for checking the inspection mechanic regular point of inspection card, are to be reported at the same time the list of prizes and penalties, and be rewarded and penalized by the personnel must be notified.