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hardchntoolbearing
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Oprettet 20. May 2020 kl. 06:53
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The paper machine is a mechanical device for continuous production

What if the bearing position is too small? The traditional solutions will not be repeated here, mainly to share with you the latest rapid repair process. Look at the following case to introduce the repair of the bearing position of the paper dryer cylinder as an example. Causes and analysis of shaft abrasion of paper machine dryer cylinder The drying cylinder of the paper machine is commonly known as the drying cylinder. The drying cylinder is generally composed of a drum and a supporting shaft. The drying cylinder shaft is usually made of cast iron. For the convenience of maintenance, the bearing and the shaft are divided into two types: taper matching or expansion sleeve matching. Dryer shaft head wear usually refers to the wear of the bearing position of the dryer. The wear of the bearing position is a common equipment problem in the paper industry. It is usually caused by the relative motion friction caused by insufficient lubrication of the bearing or the loosening of the bearing and the shaft. The paper machine is a mechanical device for continuous production. The joint production of parts and components is inseparable. Due to the large number of dryers and bearing positions, the tightening degree of the bearings cannot be checked during the brief shutdown of the brush machine every time. The vibration value and temperature change to determine whether there is a problem, when the dryer shaft and bearing determine that there is a problem, and can not be shut down in time for maintenance, resulting in a problem that the shaft has already experienced serious wear and tear. Bake oil on the repaired parts until the oil is carbonized; Grinding surface of dryer shaft ③ Use caliper to determine the coaxiality of shaft diameter; ④ Try to install the bearing to the pre-installed position; ⑤ Grinding the surface of shaft wear parts, the rougher the surface, the better; Surface treatment of dryer shaft to metallic primary color ⑥ Reconcile the SD7104 carbon nanopolymer material according to the volume ratio of 1: 3 until there is no color difference; ⑦ Apply the SD7104 material to the repaired part of the shaft until there is no air hole evenly; ⑧ The bearing inner ring is clean and brushed with SD7000 release agent to dry for use; ⑨ Quickly install the bearing to the pre-installed position; ⑩ After the material is cured, remove the bearing and check the repair size, remove excess material; After the installation requirements, reinstall the bearing and tighten it, and measure the bearing clearance.


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