A novel gear flank modification methodology on internal gearing power honing gear machine

2018 ◽  
Vol 121 ◽  
pp. 669-682 ◽  
Author(s):  
Jiang Han ◽  
Yonggang Zhu ◽  
Lian Xia ◽  
Xiaoqing Tian
Keyword(s):  
2020 ◽  
Vol 8 ◽  
pp. 1-9
Author(s):  
Kiran Kumar R Patil ◽  

Objectives: This research was undertaken to examine the economic benefit of mechanization in dehusking arecanut. Methods/Statistical analysis: A sample consisting 15 each of pre-harvest contractors, arecanut farmers using machines of different capacities for dehusking arecanut were randomly selected from Davanagere district of Karnataka. The economic viability of mechanization was assessed under these situations using partial budgeting technique. Findings: The results of the study indicated that the cost of dehusking one quintal of arecanut using machine was ₹141 as compared to manual method (₹276) in case of pre-harvest contractors. The per quintal cost of dehusking of own arecanut produce came to Rs.78 as against manual method(Rs.277)in case of farmers who used the machine for dehusking of their own arecanut produce and rental purpose. Application/Improvements: The study suggested that marginal farmers should use two gear machine, small farmers four gear machine and large farmers six gear machine to economize dehusking their own farm produce and earning rental income. Keywords: Mechanization; Arecanut dehusking; economic evaluation; horticulture


2017 ◽  
Vol 140 (2) ◽  
Author(s):  
Xian-long Peng ◽  
Qin-yu Niu ◽  
Wei Guo ◽  
Zong-de Fang

The application of a Gleason Coniflex cutter (plane-cutter) to a modern Phoenix bevel gear machine tool in face gear manufacturing has an advantage of involving a universal cutter or grinder and an available existing machine. It is valuable to research this method for face gear manufacturing. First, the principle of the application of the plane-cutter in face gear manufacturing is presented. Then, the geometry of the cutter is defined, and the model of the face gear generated by this method in abstract is established. Third, a method that uses a predesigned contact path for the synthesis with the motion parameters of the plane-cutter is proposed; controllable transmission errors are considered in this process. Fourth, based on the equivalence principle of the position and direction, the computer numerical control (CNC) motion rules of all spindles of the machine are determined, and the surface generated by the machine is presented. Finally, numerical simulation of an example demonstrates that although the surface generated by the plane-cutter, to a certain extent, deviates from the theoretical surface generated by the traditional method, the surface, in meshing with the standard involute surface of the pinion, presents a good geometric meshing performance based on tooth contact analysis (TCA), except for a shortened contact ellipse.


2011 ◽  
Vol 328-330 ◽  
pp. 260-263
Author(s):  
Zhi Jie Xin ◽  
Ying Yu Zhang

The method and the technology of Mechanical products’ function and structure modeling based on the knowledge are discussed in this document. The method of description and index of product design knowledge is analyzed. In the foundation, the functional analysis and the function solution to the product functional model are offered. The expression and the retrieval method of the product structure modeling are proposed. Finally, the application of the method is put forward taking the CNC arc tooth milling gear machine structure design as the example.


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