A parallel axle slash gear reduction cap attached to bolt breakup analysis. (b) The interior thermodynamics function: the same batch of unused bolt samples are taken, the gear-reducing motors are tested on the chamber temperature limit pull load and the anti-gravity strength, respectively, and the environmental condition is 19.6° C, with the results of the mechanics meeting the requirements. Micro-organization analysis: The parallel axle slasher caps were detected as a combination of bolts and bolts. SomeMotor gearedIn the assembly process, the rod's diameter was broken several times when the caps were applied in conjunction with the gasket, and the design material for the fractured bolt was ML40Cr. The surface was processed by zinc plating with a strength of 10.9, and the bolt required a twist of 80N.m and a force-set rectangular of 90N.m. Hardness detection: two gear-retardation bolts and bolt combinations, respectively, are tested for hardness, and it appears from the table that the fractured bolts have a surface hardness of slightly less than a full bolt, but with no significant difference, and are within the scope of the marking. Hydrogen content detection: Hydrogen content testing of a sample around a bolt breaker using an oxygen nitrogen analyser showed that although the hydrogen mass score of the gear-reducing engine fractured the bolt was below the scale, the bolt contained a quantitative hydrogen in its interior, which, together with the bolt ' s preheating strength, was too strong to produce a stress concentration, so that the hydrogen atom continued to spread to the tip of the crack, and when the crack was extended to a certain level, the gear-reducing bolt was fractured as a result of the reduction in the bearing area. During assembly, side-axis tilt gearGeared motorThe faulty use of bolts in conjunction with gaskets and the disproportionate pretightness of their installation are the main causes of bolt break-ups, and the purchase or use of combinations at the time of use of the procurement or assembly chain, as far as possible, is not used in the field combination, which, if necessary, requires effective evaluation。

The bolts are used separately without gaskets, and the gear-reducing motor bolts are not broken when the assembly rectangular is at 90N.m; the bolts are used in conjunction with the gasket, and the bolts are broken when the assembly rectangular is at 8ON.m; and a comprehensive analysis:Induction motorThe assembly of bolts and gaskets, which are made from a combination of bolts that enter the gasket before the bolts are wired, and have a diameter greater than the inside of the gasket when the silk is finished, and which ensures that the gasket cannot fall, is fitted with a bolt and a gasket, so the assembly site uses a different gasket with a larger aperture because of the relatively small aperture of the gasket, which has a larger diameter and has small surfaces to contact the bolt bearing, so that the frontal friction becomes smaller, and the bolt acceptance of the vertical assembly during the assembly process is too large to break the bolt. The pre-heavy of the bolts as low as possible and, in the event that the design requires pre-heavy, the twirl wrench is moved to 80N.m, which is important for the safe service of the bolts, and is tightened strictly in the order of the process assembly. Equipping field test: Through the above-mentioned project, the parameters of the parallel axle gear-reducing bolts are within the limits of the qualification and the comparison tests are not significantly different, as we conducted the following comparative tests in the assembly process。

In order to determine the cause of the breakage of the parallel axle gear cap, micro-organism analysis, hardness testing, chemical composition analysis, gold tissue inspection, mechanics performance testing, etc., and in the case of collage comparison tests, the main reason for the analysis of the breakout of the gear reduction motor bolt is that the fault was due to the improper coil selection, and the corresponding improvement was proposed for the cause. Component analysis: The chemical components of the breakup and bolts are analysed using the direct spectroscopy method, and the chemical components are met. At the same time, the installation of an on-site set-up of a button wrench with an upper-line value does not leave enough safety prognosis at an excess risk, which affects the pre-heavy effect of the bolt, which can lead to a reduction in metal resilience and which, although treated by excavating hydrogen, cannot completely exclude the risk of hydrogen residues. Cut-off analysis:Gearbocthe bolt fractures are vertically to the axle, there is no significant macro-composite around the stasis, the cracks are in the middle of the thread, are resilient, there is a significant stretching of plastic deformation, and no significant macro-maturization is observed at the source. http://boserlgearreducer.com/product/list-pingxzoujiansuji-cn.html