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Study On The Precision Of Asphalt Binder Spraying And Chip Spreading For Synchronous Chip Sealer

Posted on:2014-07-08Degree:MasterType:Thesis
Country:ChinaCandidate:X T WangFull Text:PDF
GTID:2252330422466176Subject:Mechanical and electrical engineering
Abstract/Summary:PDF Full Text Request
Synchronous Chip Sealer is widely applied to road-construction and road-maintenance asa new road maintenance equipment. Although the basic structure and the control have beentending toward perfection, the require for construction quality is improved continually. So it isespecially important to adopt the thorough control method of asphalt binder spraying and chipspreading and improve the precision.The essay is on the background of the TBS350Chip Sealer, then qualitatively andquantitatively analyses the factor of affecting the precision of asphalt binder spraying and chipspreading from the structure, material, control scheme and that sort of thing. Themathematical model is established about several common hopper, which can analyze thechange of the hopper’s centroid in the construction process. By the stress analysis of theautomotive chassis, the essay calculates the deformation of the tire and the plate spring andstudies the deformation’s influence on the height of the spray, then calculates the deformationbased on the relevant parameter of TBS350. Due to the deformation of the tire and the platespring has a relationship with the way of spray, the essay calculates the pressure of spreadingdoor, which is based on the powder engineering and the structure of TBS350’s hopper, and getthe relation between the chip level and the lifting angle of hopper. Meanwhile according to theprevious mathematical model, relevant control calculations of the pulling type is calculated.Through the former analysis and calculation, then the brief control scheme is lookedforward. It is that measuring the hopper with materiel controller and controlling the liftinghydro-cylinder through control system, which is for the sake of the stability of chip’s flow.According to the design of the electronic throttle, as the change of speed, the essay adopts thespeed feedback system to make the speed constant. The height of the spray is controlled,which is based on the deformation of the plate spring and the tire.
Keywords/Search Tags:Synchronous Chip Sealer, precision of asphalt binder spraying, deformation, chip’s flow, height of the spray
PDF Full Text Request
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