DKB participated in the QINGDAO AP-RubberPlas fair from August 3rd to 6th.
This time, the company showed the common reducers for rubber extruders of ZSYF, ZSYJ, ZLYJ and other series.
Box material: HT200, the casting box with the index number of gray iron 200, also known as sand casting box, is poured by mold after molten iron is melted, and is mostly used for ZLYJ, ZSYJ, or non-standard boxes. It is the most commonly used material at present. The processing equipment of the box is; gantry milling, boring machine, or machining center, vertical machining center is referred to as “Vertical Plus”, and horizontal machining center is referred to as “horizontal plus”.
Box material: HT250, the casting box with the index number of gray iron 250, also known as the sand casting box, is cast by the mold after molten iron is melted. The label and strength are higher than HT200, because of its high hardness It is difficult and needs to be tempered before processing, so it is often used in the case of customer specification or technical requirements.
Welded box, the material is usually Q235, Q345, which means that the steel plate is cut and then assembled and welded. The process is: assembly welding to ensure smooth welds, no ash jump welding, tempering stress relief treatment, shot blasting removal External scale, roughing, secondary tempering for stress relief, finishing, external grinding before cabinet assembly, cabinet cleaning, leak testing.
Gear materials are: 20CrMnTi, 20CrMnMo, 17CrNiMo6, 18CrNiMo7-6 and other materials, process: forgings, rough turning, quenching and tempering (the purpose of adjusting the uniformity of the internal structure of the forgings), turning, gear hobbing, carburizing heat treatment, gear processing Surface grinding (purpose 1 plane as the reference plane), cylindrical grinding of gear shafts, gear grinding by forming gear grinding machine, to ensure 6-level precision, imported gear grinding machine brands are: German NILES forming mold (Niles) domestic gear grinding machine Brands are; Qinchuan.
Output shaft material: according to product requirements, use round steel or forgings, ZLYJ is generally 45# steel, ZSYJ, XDJ series, metallurgy, non-standard gearbox, high torque gearbox; 42Crmo, process: rough turning, adjusting Quality (a process of heat treatment), turning, reaming to make keyways, or spline holes, cylindrical grinding, to ensure the smoothness of the oil seal, not to scratch and scratch, and to ensure the smoothness of the oil seal file The purpose is to remove oil seal leakage The hidden danger of oil, in order to ensure the long-term safe use of the gearbox.
Oil seal: domestic high-quality brand, or Taiwan brand; SOG, TTO, NAK, Japan NOK.
Lubricating oil circuit: configure according to technical or customer requirements, choose domestic high-quality and reliable oil pump (aluminum bidirectional oil pump), or Japanese NOP oil pump, motor choose domestic high-quality and reliable brand, or imported brand; ABB, Siemens, Wangao WEG.
Test machine: After the gear box is assembled, add gear oil to carry out a test run experiment of no less than 2 hours. The process inspection work is to check whether there is oil leakage in the oil seal and the lubricating oil circuit. The noise requirement is 75 decibels, and the gear is no different. If the temperature rises below 35 degrees, the vibration value is consistent (according to the motor power above 25KW-75KW, the vibration value is 0.71-1.8mm/s).
The gearbox is not filled with oil before leaving the factory. It can be used after adding gear oil (N220, VG320). Before starting the machine, read the instruction manual, the certificate of qualification or refer to the product nameplate for operation and use.