Abstract
To improve the quality of pre-sowing soil tillage in the Republic of Tatarstan, a tillage implement has been developed, which, unlike other designs, contains a helical spiral and needle ellipsoid disks coaxially mounted on a horizontal shaft. Passive helix creates a compacted seed bed at the depth of seed placement; needle ellipsoidal disks are active and provide mulching of the surface soil layer. A preliminary analysis of the processes of interaction of the working unit with the soil is possible on the basis of the parametric equations of motion of individual points of the cutting edges of the helical spiral, as well as expressions for determining their speeds and accelerations. The design parameters selected during the calculation and design of the proposed rotary combined tool should ensure that the helical spiral enters the soil with sliding. Otherwise, the traction resistance of the unit increases. To justify the basic design parameters of a spiral-screw working unit, preliminary construction of theoretical dependences is also necessary. According to the calculation results, the points of the cutting edge of the helical spiral make a complex movement in space when the gun moves. The components of the speed and acceleration of these points are variable parameters, which contributes to the active crumbling of the soil and the destruction of its lumps. The optimal design parameters of the working unit of the gun: the diameter of the helical spiral is 0.470 m; the angle of inclination of the helical spiral (the angle of the helix) - 10 ° ... 25 °; the angle of inclination of the large side of the strip to the generatrix of the cylindrical surface that describes the helical spiral is 25 ° ... 30 °
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
