| Xinjiang is a large area of plastic film mulching,agricultural plastic film covering area and the use of the ranks of the forefront of the country.Agricultural film mulching can protect soil moisture,protect water,fertilize,reduce crop diseases and inhibit weeds,but also spawn many farmland ecological environment crisis.Difficult to degrade the residual film will seriously damage the overall structure of the soil,so that moisture and nutrient transport is hindered,crop seeds are difficult to take root,causing serious "white pollution." Because the film has the characteristics of light,soft and easy to adhere,the film is easy to be wound and adhered to the residual film recovery machine after the film remover is cut off,so that the stripping of the residual film recycling machine is particularly important The In order to improve the stripping efficiency and the stripping reliability of the film remover in the farmland residue film,the research group started with the problem of residual film recovery after cotton harvesting.In order to solve the problem of low desorption rate,a new type of mechanical With the force to meet the stripping device.Mainly done the following research:(1)By investigating the field film use and stranded the status quo,testing the thickness of 0.01 mm of old and new film mechanical properties;To suspension speed test of residual film,looking for the correlation factors;Test according to the centrifugal force to explore the remnant membrane adsorption force impact factor determination of adsorption force size,analysis of the different materials of residual membrane adsorption stripping blade force and select the optimal material.(2)Combining the clamping conveyor membrane recycling machine characteristics,and analysis of the overall structure,mechanical mechanism and conditions of membrane,membrane off certain mechanical film best location point,according to the clip refers to the fully open position determine the end of a machine to take off the film blade trajectory.Analysis when to take off the film blade and tangent Angle is not at the same time,the blade on the effect of residual film from university.According to the structural parameters of the optimal design of a new independent vane machine to take off the membrane device.The research to take off the film roll speed the influence of the membrane of mechanical device.The influence factors of mechanical stripping rate of membrane have to take off the film roll speed,leaf length and machine speed,through the field experiment and with the aid of the Design expert 8.0.6 analysis optimization software,it is concluded that the best work parameters.(3)Using the aerodynamic analysis research on the mechanism of pneumatic membrane stripping off,analyzed the influence of the outlet Angle of pneumatic membrane,simulation using ADAMS to compute and determine the best Angle.In air export area of some cases,the design structure of different conveying air duct,study different conveying duct on the flow uniformity and the influence of size of outlet wind speed.For conveying duct 3 d modeling,through ANSYS software of Fluent plate conveying duct of the structure of different fluid simulation analysis,it is concluded that the best transmission model of the air duct.A field experiment of pneumatic membrane device,analyze its influence factors,by using the Design expert 8.0.6 software to analyze each variable optimization,a field experiment using the optimum working parameters pneumatic membrane off rate are obtained.(4)For gripping delivery residual film recycling machine mechanical and pneumatic composite membrane device for field experiment,find out the three independent factors of choose according to influence factors on the test model,establish factors coding table.With the aid of the Design expert 8.0.6software,and analyze the factors the interaction between 2 d figure and response surface figure.Optimize the model,it is concluded that the best work parameters and it is concluded that the composite mechanicaland pneumatic membrane device off to take off the film rate.Membrane device of three kinds of comparative analysis,combining with the actual choice the optimum membrane device. |
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