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碼坯機升降機構(gòu)設(shè)計
JIANGXI AGRICULTURAL UNIVERSITY
本 科 畢 業(yè) 論 文（設(shè) 計）
題目： 碼 坯 機 升 降 機 構(gòu) 設(shè) 計
學(xué) 院： 工 學(xué) 院
姓 名： 蔚 延 年
學(xué) 號： 20080978
專 業(yè)： 機械設(shè)計制造及其自動化
年 級： 2008級
指導(dǎo)教師： 曾一凡 職 稱： 副教授
二0一二 年 五 月
摘要
現(xiàn)在，碼坯機主要由切條機、切坯機、分坯機、夾盤機構(gòu)、行走機構(gòu)、升降機構(gòu)、旋轉(zhuǎn)機構(gòu)和電氣系統(tǒng)等組成。其中升降機構(gòu)是其中一個重要部分，現(xiàn)在升降機構(gòu)一般采用液壓升降與滾子鏈升降兩種方法。液壓升降因為液壓元件的制造精度要求較高、價格較貴，而且不能得到嚴格的傳動比、效率較低。又由于工作性能易受到溫度變化的影響，因此不宜在很高或很低的溫度條件下工作，所以設(shè)計采用滾子鏈升降。因為行走機構(gòu)與升降機構(gòu)一體，所以一起設(shè)計了。升降采用滾子鏈，使其運動準確，避免打滑現(xiàn)象，同時利用四個導(dǎo)向柱，增加設(shè)備的穩(wěn)定性。滾子鏈由大小鏈輪帶動，共四組，布于四周，通過擺線針輪減速機通過齒輪箱帶動兩根軸實現(xiàn)同步上升。最后在車架兩端加上配重，通過鋼絲繩與夾盤機構(gòu)連接，這樣可以減輕滾子鏈受力，減小功率。行走機構(gòu)通過另一擺線針輪減速機帶動行走軸行走。此為本文設(shè)計方案，并且通過計算，論證了該設(shè)計方案的可行性。
關(guān)鍵詞：碼坯機；升降機構(gòu)；行走機構(gòu)；滾子鏈升降
Abstract
Now, setting machine is mainly composed of a cutting machine, cutting machine, cutter, chuck mechanism, running mechanism, lifting mechanism, a rotating mechanism and electrical system. The lifting mechanism is one of the most important parts, now lifting mechanism generally adopt hydraulic lifting and roller chain lifting two methods. Hydraulic lift for hydraulic components of the manufacturing precision is high, the price is more expensive, but can not be a strict transmission ratio, low efficiency. Because the working performance are susceptible to the influence of temperature change, therefore not at very high or very low temperature conditions, so the design of the roller chain lifting. Because the running mechanism and the lifting mechanism is integrated, so got together to design. Lifting the roller chain, the motion accuracy, avoid the slip phenomenon, at the same time using four guide posts, increases the stability of equipment. Roller chain sprocket drive by size, a total of four groups, the cloth around, through the cycloidal pinwheel speed reducer through the gear box drives two axis synchronous rise. In the final frame ends with counterweight, through the steel wire rope and the chuck body connected, this can reduce roller chain stress, reduce power. Walking mechanism through another cycloid reducer drive shaft walk walking. This is the design, and through calculation, it proves the feasibility of design scheme.
Key words :Setting machine; lifting mechanism; running mechanism; the roller chain lifter