Agricultural Machinery Maintenance Technology

Fuel is clean. At present, most of the agricultural machinery engines are diesel engines, so the diesel purification work is very important. There are three methods for diesel purification. The first is to set the purchased diesel oil to settle for more than 96 hours, and then add the filter to the filter and add a layer of silk cloth. When taking oil from the oil drum, take the filter plus a layer of silk cloth or typewriter wax paper, and clean or replace it regularly. Oil net. Always pay attention to the use of clean lubricants that meet the standards of this machine. The filter element of the oil filter should be regularly cleaned. The rotor-type filter should be affixed with a layer of suitable kraft paper of a wide and narrow length to facilitate the adsorption of dirt under centrifugal action. The dirt that is adsorbed on the filter element is best cleaned with an air pump when inflated, blowing air from inside to outside, brushing with a brush, and never wipe it by hand. Use a clean, calcium-based grease on the butter, and don't mess with other lubricants. Air net. When the engine is running, the cylinder draws in 2 to 4 cubic meters of air per minute. In order to ensure that the air entering the cylinder is clean, the air filter must be inspected and cleaned regularly. Cooling water net. The engine cooling water is preferably made of soft water, ie, snow, rainwater or treated tap water, and clean well water, etc. The cooling system is cleaned with a ratio of water volume of 1% caustic soda and 0.5% kerosene. Machine tool net. Most agricultural operations are in the wild and in the open air. They often come into contact with dust, silt, and water. The body is most likely to be dirty. Therefore, it is necessary to scrub frequently, so that the body does not rust, if necessary, to make up the paint to prevent corrosion.

Roundness Tester

A roundness tester is a measuring tool that uses the rotation axis method to measure the roundness error of a workpiece. The roundness tester is divided into sensor rotary and workbench rotary. During measurement, the measured part is installed concentric with the precision shaft system, and the precision shaft is equipped with an inductive length sensor or workbench for precise circular motion. The roundness meter consists of an instrument's sensor, amplifier, filter, and output device. If the instrument is equipped with a computer, the computer is also included in this system.

A roundness tester is a precision instrument used to measure the out-of-roundness of a rotating surface (shaft, hole, or spherical surface) of a component. There are usually two types: small desktop, where the workpiece is mounted on a rotating workbench and the measuring head is mounted on a fixed column; and Large floor mounted, with the workpiece installed on a fixed workbench and the measuring head installed on the rotating spindle. During measurement, the measuring head contacts the workpiece's surface, and the instrument's rotating part (workbench or spindle) rotates for one cycle. Due to the extremely high accuracy of the supporting bearings in the rotating part, the measuring head will generate a high-precision circular trajectory on the measured surface during rotation. The out-of-roundness of the measured surface causes the measuring head to shift and transform into an electrical (or pneumatic) signal. After amplification, it can be automatically recorded on a circular recording paper, and the out-of-roundness of each part can be directly read out for accuracy evaluation and process analysis and widely used in precision bearings, machine tools, and instrument manufacturing industries.

The Roundness Testeradopts a radius measurement method and operates in a rotating manner. The rotation axis system of the roundness meter adopts a high-precision air floating spindle as the measurement reference; The electrical part of the roundness tester is composed of advanced computers, precision circular grating sensors, and precision inductance displacement sensors. The circular grating sensors and precision inductance displacement sensors measure angle and radial displacement, ensuring the accuracy of measuring the angular displacement and radial value of the workpiece; The roundness meter measurement software adopts a roundness measurement software based on the Chinese version of WinXP operating system platform, completing data collection, processing, and measurement data management.

China Roundness Measuring Instrument,Roundness Tester Machine,Mitutoyo Roundness Tester Manufacturer

Zhejiang dexun instrument technology co., ltd , https://www.dexunmeasuring.com