The use of large rice and wheat threshers in the field is very important and is an effective harvesting machine. The main application objects are wheat or rice. Rice and wheat threshers greatly reduce the labor intensity of rice and wheat production, while also improving the level of agricultural productivity. The use of single rice and wheat thresher in the research laboratory is common.
The process of rice and wheat thresher is: the crop is threshed by the drum, and the grass is discharged from the machine or in front of the machine. The grain and part of the stem fall into the bottom of the collection hopper by the sieve weight, and the material is taken by the spiral piece on the axis of the particle distributor. Feeding into the granulator, the centrifugal force generated by the high-speed rotation of the impeller of the granulator throws the material into the separation barrel, and the suction stem and lighter than the weight of grain and the blades of grass are sucked away by the induced draft fan and the pipeline to clean it. Granules rely on their own weight and enter the basket. The whole process of threshing and cleaning is sustainable and consistent.
Rice and wheat single-head thresher maintenance and maintenance include maintenance and maintenance in use and maintenance and maintenance in storage.
1. Maintenance and service during use (1) Before use, the thresher should be thoroughly cleaned and overhauled. All bearing caps should be opened to remove oil and debris and refill the lubricant.
(2) Before the thresher is put into operation, long-distance transportation should be carried out using special vehicles; short-distance transportation should try to slow the walking speed, and the maximum speed must not exceed 5km/h.
(3) During operation, it should always be observed whether the machine's operation, sound, and temperature are normal. After each type of finished product or after completing one shift, it is necessary to check whether the bearing is overheated and whether the fastening screws and key pins are loose and abnormalities are repaired in time.
(4) Before the start of each shift, it is necessary to check the tension of the belt and the clearance of the fitting position, and adjust it if necessary.
(5) Clean the dust on the hood cover, wood chips and rollers, sliding screen surface, etc.
(6) For diesel engine-powered threshers, the exhaust pipe and the fire extinguishing cover should be cleaned once a day to avoid serious carbon deposition, affecting the exhaust and fire extinguishing performance; for motor-driven threshers, high temperature should be adopted at noon. Thermal measures to prevent the motor from being burned by the heat of the sun.
2. Maintenance and maintenance during storage After the threshing machine is completed, the following maintenance should be carried out for the second year. The following maintenance items are required:
(1) Clean the soil, dirt, stalks, glume and other debris inside and outside the thresher with clean water.
(2) Tighten the loose screws and remove the belt and chain. The belt is cleaned with soapy water, dried and hung on the wall to prevent corrosion. Chains are washed with kerosene, soaked in oil for several minutes, drained and stored separately.
(3) Use kerosene to clean all parts of the bearings, butter mouth, and refill with butter.
(4) Apply anti-rust paint to the surface of unpainted metal parts such as transmission wheels and thresher rollers. Place paint, such as racks, covers, etc., to make up paint to prevent corrosion and rust.
(5) The rice and wheat single ear thresher is placed in a dry warehouse, lifted with wood, and covered with a plastic cloth.
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