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The Research Of Open CNC System For Laser Welding Machine

Posted on:2015-11-14Degree:MasterType:Thesis
Country:ChinaCandidate:X L MengFull Text:PDF
GTID:2272330422985424Subject:Mechanical design and theory
Abstract/Summary:PDF Full Text Request
Concrete mixing truck is in the process of transporting concrete stir to mix, to guarantee the quality of the mix. Reducer is the core component of concrete mixer truck, its working principle is to hydraulic motor output torque, the reducer with a certain speed stable and reliable to the mixing drum. Reducer flange connected to the mixing drum, but also plays a mixing drum front end support and keep stirring cylinder installation Angle, and so on. In this paper, the concrete mixing transporter reducer as the research object, by adopting the combination of theoretical analysis and simulation method of the reliability of the key components of reducer for the in-depth analysis, and put forward the optimization scheme of speed reducer structure parts.Introduced the structure and working principle of concrete mixer truck, this paper expounds the mixing cylinder hydraulic control of constant speed control strategy, and puts forward the structural design of the mixing drum general method and principle.For common faults on its force analysis, sure under normal driving force as well as on the brakes, a sharp turn, bumpy road conditions limit load, determined by theoretical analysis and calculation of the structure of key parts reducer, and reducer is obtained by Pro/E gear model and assembly model of the whole.Through the reducer under complex conditions of dynamic load analysis, determine the condition of the whole of the large bearing work output is the key to flange, thread of large bearing preload and thread of gear reducer, large flange bearing preloaded structure such as key components in finite element simulation analysis.Comprehensive simulation results, and puts forward the agencies are to improve the structure of planetary gear, the sun wheel position within a certain range can be adjusted according to the load conditions, load balance, to achieve the effect of load distribution; And put forward the improvement project of big thread preloaded bearing structure, at the same time considering the vehicle in the process of driving the axial impact load, thus to taper thread, and carries on the finite element simulation analysis for the improved structure, in order to meet the reliability requirements in the process of reducer in actual use.
Keywords/Search Tags:concrete mixer truck, reducer, bearing, planetary gear transmission, structure improvement
PDF Full Text Request
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