The key technology of bearing manufacturing(1)

Bearing manufacturing key technologies of the: "wheel" electrode of wedm machining multiple points of nc machining cutter dividing type machine tool accessory of a significant breakthrough in technology numerical control lathe machining axial parts 4 source program KV1000 frequency converter in the application of plate leveler machine tool blade material and heat treatment CA precision casting cae SIEMENSSINAUTMD720-3 - dedicated to S7-200 series PLC of GP's fine machine on display batch processing using the multi-body dynamics simulation of composite processing machine based on RecurDyn how to choose the kind of wire cutting machine CNC machine tool servo motor fault maintenance term comments - machining center CNC machine blade grinding problem protruding generated when high speed milling tool path optimization set up two kinds of new high performance used in mould industry cutter tool soft oil pipeline car wire production line PLC control technology review basic function of mitsubishi numerical control transformation of CNC lathe machine tool rod long boring processing example technical key manufacturing lubrication rolling bearing seal test of modern simulation technology in our country the rapid development of technology computer widely used in the practice application direction size lubrication way rotating speed environment condition of bearing load bearing parameters input computer through calculus to understand bearing may share this kind of test method to evaluate whether the bearing design life greatly shorten the test time reduced human test prior to the completion funds bearing manufacturing. Modern simulation technology with the wide application of computers and rapid development. The specific practices of this technology is to apply a certain condition of bearing load direction, size, lubrication, rotation speed and environmental parameters, and bearing the main parameters such as input computer at the same time, through calculus, understand the life of the bearings may reach, so as to evaluate the bearing design is operable.

This test method can greatly shorten the test time, reduce the manpower and research funds, can be done in bearing manufacture, know in advance its application effect, is a kind of quick and easy test method. Foreign advanced SKF bearing industry company, NTN bearing simulation test technology research at advanced level. Development trend both at home and abroad at present, the bearing test methods at home and abroad, there are four main: one, the friction and wear test, test bench test, three, laboratory testing ground simulation test, four operation test, the actual working condition. Overseas for the above several test methods were used, but different application purpose, for example, to develop a new product, must first do friction and wear test. But if the friction wear form without much change, only change product size, loading conditions, then just do platform, simulation or actual operation test. Overseas for some of the key parts of the new products (such as a car wheel hub bearing, etc.), the inspection is very strict, must through practical test, used to be allowed. Swedish SKF bearing, Japan NTN recent research simulation test, simulation technology, only alternative test bench or experiments, so as to shorten the time of product design, speed up the progress of product development, but the actual operation situation and the gap. Now, China's bearing industry has to carry out the friction and wear test, only a luoyang bearing research institute; Has been carried out bearing test bench, the shaft developed by luoyang bearing research institute, Shanghai, hangzhou bearing test center and wafangdian, Harbin and so on more than 20 bearing state-owned enterprises; Can expand the simulation test of luoyang bearing research institute, hangzhou bearing test center and luoyang, shaft, and other enterprises.

Rather than the actual test, only in the aspect of supporting the host enterprises put forward the bearing production enterprises shall, when required, such as wheel bearings of railway passenger cars and car wheel hub bearing, etc. All in all, the domestic in the aspect of simulation and practical operation tests is not wide, should further expand scope, host range, or the actual working condition for simulation test schedule as soon as possible ready for the full hardware and software. In simulation experiment, the main research contents and goals in order to for some typical types of typical products need to test bench or simulation test, find out the function relationship between the life and working condition of bearing, and then using this relationship, through the computer for bearing design and test work, this is usually only for those very important product test. According to our country existing ability over the next decade, the main goal is for railway vehicle bearings, automobile wheel hub bearings and high speed grinder spindle bearing simulation experiment research, and gradually have a certain simulation test conditions.