普通车床主传动系统设计规范

Ordinary lathe main transmission system design specification

A: design, the design of a plain lathe main transmission system, complete transmission series for 8-12. Second, the design purpose: 1: through the design practice, master machine main transmission system design method. 2: cultivate comprehensive use of mechanical drawing, mechanical design, structure and process related knowledge of engineering design. 3: training manual, atlas, relevant material and design standards. 4: improving technology and prepare technical document. 5: is the graduation design teaching implementation of technical preparation. Third, the design content and the basic requirements: Design content: (a) movement design (1) transmission scheme design (concentration), separate transmission (2) rotational speed range (3) than: archduke ratio, and mixing ratio and dukedoms than male (4) to determine the structure and structured: (1) : former vice driving less dense than before and after after dredging, (2) solution: a speeding level increases, b: using variable transmission mechanism and branch (5) rendering speed diagram (1) : former slow velocity rush (2) after the former acc: after the rush Sanjiaodai (6) : sure. The variable pinion gear group (7) draw transmission system (2) power design (1) the transmission shaft, and the calculation speed: each gear (2) trunnion shaft (3) gear module (4) : spindle, trunnion (before), after the diameter size in front, before a roughers.tousegravity-flotation (stretched quantity: 100-120), support form, reasonable span of supports L (3) structure design (4) check a gear (minimum), check spindle (ocsm), torque, Basic requirements: 1: according to the requirement of design project, reasonable size, sports and determine relevant parameters. 2: correct use structured, speed diagram design tools, serious scheme analysis. 3: the correct use manual, standard, design patterns must conform to the state standards. Say to the book with engineering terms, the words written neatly, smooth succinct. 4:1 - main transmission system to control electrical tools principle chart 1. Four, design parameters: The biggest diameter serial processing spindle speed series (r/min) drive motor power and synchronous speed 1 1000,710,500,355,250,180 400mm 125,90 4.5 kw, 1500r/min, 2 1000,500,355,250,180 400mm 125,90,45, 4kw 1500r/min, 3 320mm 2000,1420,1000,710,500,360 250,180,125,90,63,42, 4kw 1500r/min, 4 320mm 2000,1000,710,500,360,250 180,125,90,63,45,22, 1500r/min 3kw, 5 320mm 2000,1260,1000,800,630,500 4kw 1500r/min, 400,320,250,200,160,100 6 320mm 2000,1250,800,630,500,400,320 250,200,160,100,63, 1500r/min 3kw, The second group of parameter selection (as design data), Five, the motion parameters design (1) transmission scheme design (choice) transmission (2) rotational speed range (3) choose than mixing (4) to determine the structure and structured: (5) rendering speed: shown below (6) determine the pinion gear speed group The calculation of the first expand group pinion gear The first group of expanding ratio, respectively: Therefore the minimum number of gear ratio for querying, take, and is, 2 basically the group is respectively: ratio, Therefore the minimum number of gear ratio for querying, there is, 3 the second expansion ratio of group, Therefore the gear combinations, at least in the table, and there, (7) transmission chart is as follows: Six, the dynamic parameter design (1) the calculation speed transmission The axis of rotation axis calculation, the calculation, for 125r/min speed. Each axis calculation speed is as follows: 1 2 3 serial electric shaft Computing speed (r/min) 1440 1000 500 177 125 The minimum gear turns as follows: the computation Axis number and minimum gear combinations, 1 (22) 2 (22) 3 (20) (50), Computing speed (r/min) 1000 500 180 125 (2) the output power of the