1. Precautions for thresher operation:
(1) Selection of speed
The speed of the thresher should not be too fast. It should be used at the speed specified in the instruction manual, and the speed cannot be arbitrarily increased. Generally, the dewheat is 28-32 m / s, the indica rice is 24-26 m / s, and the japonica rice is 26-30 m / s. If the speed is too high, it will not only take off quickly, but will also cause unfavorable situations such as serious kernel breakage, shortened machine life, and increased unsafe factors. Install a matching electric motor or diesel engine according to the requirements or the signs on the machine, and equip them with suitable pulleys. Be careful not to install them in the opposite direction. The fan cannot be reversed when the pulley is turned, otherwise the cleanliness of the kernel will be affected.
(2) Feeding amount selection
During threshing, continuous and uniform feeding is required. If the feeding amount is too large, it will cause excessive load on the drum, lower the rotation speed, reduce the depuration rate and productivity, increase the number of grains entrained in the stalk, reduce the threshing quality, and cause blockages and shutdowns in severe cases damage. The feed rate is too small, the productivity is low, and sometimes the removal rate is affected. The indicators of clean off, fast off, less broken, and low energy consumption are actually mutually restrictive. If it is to be cleaned well, the crushing rate will increase, productivity will decrease, and energy consumption will increase.
The operator should, according to the actual situation, with the close cooperation of the "hand", "eye" and "ear", the "hand" senses the dryness and humidity of the crop, feed more dry and less wet; Check whether the speed is normal, feed more if the grass is smooth, and feed less when it is not smooth; "ear" listen to whether the sound of the machine is normal, and feed the load loudly and low, otherwise feed more.
2.Precautions for the safe operation of thresher
Threshers must pay attention to the following ten taboos.
A bogey for poor storage. When the summer and autumn harvests are over every year and the thresher is no longer in use, the thresher should be thoroughly scrubbed and placed in the room for storage. It cannot be thrown on the ground or on the side of the field. The wind and rain will cause the parts to rust and damage, leaving Potential insecurity.
Second, do not overhaul before use. Before harvesting the summer and autumn grains, the threshing machine needs to be carefully inspected and repaired to see if the bolts are loose, whether the bars are intact, and if there are any problems with the transmission components. Find out the unsafe factors and eliminate them. Do not run with "illness".
Three bogey overload work. No matter it is powered by an electric motor or diesel engine, it must not be overloaded when working, otherwise, it is very unsafe.
Four bogeys move and install at will. The threshing machine and its powerful machine must be moved and installed by skilled professional technicians. When moving the electric thresher, the power must be turned off first, and the insulated wires must not be dragged on the ground to prevent the insulation layer from being worn out and causing injury due to leakage. The shutdown and start of the diesel engine should be checked by a professional before operating safely.
Five taboo safety devices are incomplete. The safety device on the thresher and its powerful machine must be complete. For example, the transmission belt must have a safety cover, and the motor must be grounded to ensure personal safety.
Six bogeys temporary piece together a threshing staff. People who use threshers should know some mechanical operation and safety knowledge and have practical experience. Don't assemble people temporarily, otherwise, accidents are easy to happen.
Seven bogey straw feeding uneven. When threshing in a threshing machine, pay attention to uniform feeding. The feeding amount is appropriate. Straws must not be fed in bundles, and mixed foreign matter cannot be fed with the straws. Otherwise, the parts will be damaged and the person will be injured. A person's arm must not reach into the feeding port to prevent being injured by a high-speed rotating bar or even interrupting the arm.
Eight bogey people are mixed. The number of people participating in threshing should be appropriate, not as many as possible. Too many people not only waste manpower but also easily lead to unexpected accidents.
Nine continuous operation time is too long. When summer and autumn grains are harvested and threshed, they often need to fight day and night. However, the duration of continuous operation should not be too long. Generally, after 5-6 hours of work, the machine should be stopped and rested, and the thresher and its powerful machine should be inspected for safety so that people can rest The machinery is maintained, otherwise, accidents are likely to occur.
Ten avoid using homemade and eliminated threshers. Some people make their own threshers or use obsolete threshers to save money. Compared with threshers that leave the factory after strict inspection, this type of thresher has poor safety performance and cannot be used.
No comments:
Post a Comment