After the reducer is shipped from the factory, it is generally stipulated that there is a running-in period of about 200 hours (the oil must be changed over time), which is defined by the technical characteristics of the initial use of the reduction gear. The running-in period is an important part of ensuring the normal operation of the reducer, reducing the failure rate and prolonging its service life. However, some users currently lack the common sense of using the reducer or because the allowable torque is not enough, or want to get the benefits as soon as possible, the small machine is used, and ignore the special technical requirements of the new machine running-in period. Fire Doors With Windows,Fire Rated Glass Door,Fire Rated Door With Window,Internal Fire Door With Glass Foshan QI'AN Fireproof Shutter Doors Co., Ltd , https://www.fsqianfiredoor.com
Some users even think that anyway, the manufacturer has a warranty period, the machine is broken and the manufacturer is responsible for maintenance, so the speed reducer is overloaded for a long time during the running-in period, causing frequent failure of the reducer, which not only affects the normal use of the reducer. , shortens the life of the reducer. Therefore, the use and maintenance of the reducer running-in period should be given full attention.
First, the characteristics of the running-in period:
1. Fast wear rate Due to the influence of factors such as processing, assembly and commissioning of new reducer parts, the contact area of ​​the mating surface is small, and the allowable torque is large. During the operation of the reducer, the concave and convex parts on the surface of the part are frictionally engaged with each other, and the ground metal scraps, as abrasives, continue to participate in the friction, which accelerates the wear of the mating surfaces of the parts. Therefore, during the running-in period, it is easy to cause wear of parts (especially the matching surface), and the wear speed is too fast. At this time, if it is overloaded, it may cause damage to parts and cause early failure.
2. Poor lubrication Due to the small fit clearance of newly assembled parts, and due to assembly and other reasons, lubricating oil (fat) does not easily form a uniform oil film on the friction surface to prevent wear. Thereby reducing the lubrication efficiency, resulting in abnormal early wear of the machine. In severe cases, the friction surface of the precision fit may be scratched or bitten, resulting in malfunction.
3. Parts that have loosened new processing and assembly have deviations in geometry and fit size. In the initial stage of use, they are affected by alternating loads such as shock and vibration, as well as factors such as heat and deformation, and excessive wear. The reason is that it is easy to loosen the originally fastened parts.
4. Leakage occurs due to the looseness of the parts, the vibration and the heat of the reducer, the leakage surface of the reducer and the joints of the reducer may leak; some defects such as casting are difficult to find during assembly and debugging, but due to The vibration and impact during the operation are exposed, which is manifested as leaking (seepage) oil. Therefore, leakage sometimes occurs during the running-in period.
5. Many operational errors Due to insufficient understanding of the structure and performance of the reducer (especially new operators), it is easy to cause malfunctions due to operational errors, and even cause mechanical accidents and safety accidents.
Second, the use and maintenance of the running-in period 1. Special reducer, the operator should receive the training and guidance of the manufacturer, fully understand the structure and performance of the reducer, and obtain certain operation and maintenance experience before operating the reducer . The product maintenance and repair manual provided by the manufacturer is the necessary information for the operator to operate the equipment. Before operating the reducer, be sure to read the maintenance instructions first, and operate and maintain according to the requirements of the manual. And long-term preservation of data for easy maintenance.
2. Pay attention to the working load during the running-in period. The working load during the running-in period should not exceed 85% of the rated working load, and the appropriate workload should be arranged to prevent the overheating caused by the continuous operation of the reducer for a long time.
3. Pay attention to frequent observations and abnormalities. Stop in time to eliminate them. If the cause is not found, the operation should be stopped before the fault is eliminated.
4. Reasonable selection of lubricating oil, especially gearbox with input power greater than 11KW must be loaded with load gear oil. Pay attention to the lubricating oil, hydraulic oil, coolant, oil level and quality, and check the tightness of the machine. During the inspection, it was found that the oil was too much, and the reason should be analyzed. At the same time, the lubrication of each lubrication point should be strengthened. It is recommended to add grease to the lubrication points every week during the running-in period (except for special requirements). When the vertical gear unit with oil pump is connected to the power supply, pay attention to the direction of rotation of the oil pump and turn it clockwise to the correct direction.
5. Keep the reducer clean, adjust and tighten the loose parts in time to prevent the parts from being worn out or the parts being lost due to looseness.
6. At the end of the running-in period, the machine should be forcedly maintained, checked and adjusted, and the oil should be replaced.
In short, the maintenance requirements of the reducer during the running-in period can be summarized as: strengthening training, reducing load, paying attention to inspection, and strengthening lubrication. As long as the maintenance and maintenance of the gearbox running-in period are emphasized and implemented as required, it will reduce the occurrence of early failures and prolong
Service life, increase production efficiency, and make the reducer bring you more benefits.