| As a result of long-term unscientific land to raise,south sugarcane area is facing a serious decline in soil,leading to reduced sugar cane,the urgent need to promote the use of conservation tillage technology,Sugarcane can be cultivated before the deepening of the soil can effectively improve the soil,increase production.China’s existing north of all kinds of deep loose mechanical and structural structure thin,not suitable for sugarcane soil than the resistance of large,more residue;while the foreign related deep loose machine prices high.Therefore,in the early development of the 1SG-230-based deep rotary tiller on the basis of,innovation developed a rotary tillage deep loft joint work machine,can be completed one-time rotary tillage,grass,deep loose,broken soil operations,to meet the needs of the land preparation work for stubble and multiple plots.And chose the visualization of the deep ground detector,to solve the current by the manual implementation of the work of monitoring the workload of deep pine operations,and the problem of high management costs,to achieve real-time observation of the depth of the depth of the depth,operating area,etc.,to achieve deep loose field precision and accurate monitoring and supervision.The main contents and conclusions are as follows:(1)Machine design and analysis:In order to reduce the obstruction problems encountered by the machine in the depth of the preparation of the sugarcane field,the design scheme of the new deep plow posture is innovated.In order to make the rotary tiller have enough power to cut off the plant stalk and avoid the waste of power,Ratio of 1:2.69;due to the deep plow installed in the rotary tiller rear,innovative design of the pressure roller,and even in the deep plow,to achieve the purpose of leveling the land.(2)Design and simulation of rotary tillage parts:Under the condition of satisfying the range of cutting distance of sugarcane,the rotation speed of the tractor output shaft is 1000r/min,and the maximum speed of the machine can reach 0.7m/s.For stubble weed more,the use of II T245 rotary knife.Designed to prevent clogging rotary knife axis:the number of knives for the left and right 24,knife spacing larger;diameter 90mm,diameter 80mm,the size is greater than the ordinary rotary knife axis,check the results for the safety.The fatigue failure analysis of the rotary tillage knife shows that it can work continuously for 45 h without damage and more durable at 372r/min.(3)Design and analysis of subsoiler components:The LS-DYNA program was used to simulate the movement of three deep plow in the soil,and the inclined plow was selected.By analyzing the surface test design method,the parameters of the skewed deep plow were analyzed for the loosening performance and traction resistance Of the impact of the plow to determine the angle of 35 °,into the land angle of 26 ° plow bottom angle of 6° to ensure that the conditions of subsoiling conditions,get a smaller traction resistance 4682.39N.(4)Simulation and optimization of the rack:The static stress and modal analysis of the rack were carried out by Solidworks and ANSYS software respectively.It was found that the local stress of the original design was too large.By adjusting the installation position of the deep plow,the maximum stress and displacement of the frame decreased by 77%and 41%The Modal analysis shows that the natural frequency of the frame is lower than the excitation frequency and is not easy to resonate.(5)Field trials:Under the condition of 28.1%soil moisture content,sugarcane leaf and weed about 0.2kg/m2,the depth of loose depth was 38cm,the stability coefficient was 90.6%,the rotational tillage depth was 20cm,the rotational stability coefficient was 91%,the working efficiency 0.82hm2/h,broken soil rate of 80.2%,higher than the relevant national standards.Using the comprehensive evaluation method,the applicability evaluation of the equipment in the sugar cane area was quantified. |
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