Speed reducer factory, the general provisions of 200 hours of run in period (over time must be oil), which is decelerating machinery technical characteristics in initial stage and the provisions of the. The running in period is an important link to ensure the normal operation of the speed reducer, reduce the failure rate and prolong the service life of the speed reducer. But now some users, due to the lack of the reducer use common sense or because of a vow with torque is not enough, or to get profits as soon as possible, the small machine, while ignoring new machine running in period of special technical requirements.
Some users even think, anyway, manufacturers warranty, the machine is broken by the manufacturer is responsible for the maintenance, and reducer in the running in period is long time overload, resulting in reducer fault occurs frequently, which not only affects the the normal use of the speed reducer, shortens the service life of the reducer. Therefore, the use and maintenance of the speed reducer should be paid more attention to.
First, the characteristics of running in period:
1 fast wear speed
Because of the new reducer parts processing, assembly and debugging and other factors impact, with the contact area is small, and the torque is larger. Reducer in the running process, parts of the surface of the concave and convex parts of the friction, wear and tear down the metal debris, and as an abrasive, continue to participate in the friction, but also accelerate the wear of parts with the surface. Therefore, the running in period is easy to cause the wear and tear of the parts (especially with the surface), and the wear rate is too fast. At this time, if the overload operation, it may lead to damage to the parts, resulting in early failure.
2 bad lubrication
Due to the assembly and other reasons, the lubricating oil (grease) is not easy to form a uniform oil film on the friction surface, in order to prevent wear and tear. In order to reduce the lubrication performance, causing parts of the early abnormal wear. When serious, it will cause the friction surface of the precision of the scratch or bite phenomenon, resulting in the occurrence of failure.
3 loosening occurs
New processing and assembly of the parts, there is a geometry and with the size of the deviation, in initial stage, due to the impact and vibration of alternating load, and heating and deformation factors of influence, and wear fast, easy to make original fastening parts have loosened.
4 leakage phenomenon
Due to the effect of heated loose parts, vibration and reducer, reducer sealing surface and pipe joints, the emergence of the phenomenon of leakage; part of the casting defects in the assembly debugging difficult to find, but due to the operation process of the vibration and impact, the defect was exposed, leaks (infiltrates) oil. Therefore, the running in period will appear occasionally leakage phenomenon.
5 operational mistakes
Because of the lack of understanding of the structure and performance of the gear reducer (especially the new operator), it is easy to cause the failure of the operation fault, even cause the mechanical accident and safety accident.
Two, running in period of the use and maintenance
1 special reducer, operator should accept the training, guidance, the structure of the reducer, the performance should be fully understood, and to obtain a certain operation and maintenance experience of the reducer can be operated. Manufacturers to provide product use and maintenance instructions, is essential information for the operator to operate the equipment, in front of the operating speed reducer, be sure to read the instructions, according to the requirements of the specification for operation and maintenance. And long-term preservation of information, easy maintenance.
2. Pay attention to the running in period of work load, running in period of work load is generally not more than 85% of the rated load, and to arrange for the workload and prevent deceleration time the captain of the continuous operation caused by overheating.
3 pay attention to the regular observation, abnormal, should be excluded in time to stop, the reason is not found, the failure is not ruled out, should stop the operation.
4 reasonable selection of lubricants, in particular, the input power is greater than 11KW of the reducer to be injected in the load gear oil. Often check the lubricating oil, hydraulic oil, coolant, oil level and quality, and pay attention to check the seal. Check that the oil is missing too much, should analyze the reason. At the same time, we should strengthen the lubrication points, it is recommended in the running in period, every week to grease lubrication grease (except for special requirements). When the speed reducer with oil pump is connected to the power supply, the attention is paid to the rotation direction of the oil pump, and the clockwise rotation is correct.
5 to maintain the speed reducer clean, timely adjustment, fastening loose parts, in case of loose and aggravate parts wear or loss of parts and components.
6 end of the running in period, to deal with the machine to carry out compulsory maintenance, do a good job check and adjust the work, and pay attention to the replacement of oil.
In short, the speed reducer in the running in period of the use of maintenance requirements, can be summarized as: to strengthen the training, reduce the load, pay attention to check, strengthen the lubrication. As long as the attention and according to the requirements of the gear reducer running in period of maintenance and maintenance, it will reduce the occurrence of early failures, prolong service life, improve production efficiency, so that the gear reducer for you to bring more benefits.