7 鋼球錐輪式無級變速器設(shè)計

7 鋼球錐輪式無級變速器設(shè)計,鋼球錐,輪式,無級,變速器,設(shè)計 鋼球錐輪式無級變速器的設(shè)計摘要：機械無級變速器是一種能適應(yīng)工藝要求多變、工藝流程機械化和自動化發(fā)展以及改善機械工作性能的一種通用傳動裝置。本文簡要介紹了摩擦式機械無級變速器的基本結(jié)構(gòu)、設(shè)計計算的方法、材質(zhì)及潤滑等方面的知識，并以此作為本次無級變速器設(shè)計的理論基礎(chǔ)。本設(shè)計采用的是以鋼球錐輪作為中間傳動元件，通過改變鋼球的工作半徑來實現(xiàn)輸出軸轉(zhuǎn)速連續(xù)變化的鋼球錐輪式無級變速器。本文分析了在傳動過程中變速器的主、從動輪，鋼球和外環(huán)的工作原理和受力關(guān)系；詳細推導(dǎo)了實用的鋼球錐輪式無級變速器設(shè)計的計算公式；并針對設(shè)計所選擇的參數(shù)進行了具體的設(shè)計計算；繪制了所計算的鋼球錐輪式無級變速器的裝配圖和主要傳動元件的零件圖，將此變速器的結(jié)構(gòu)和工藝等方面的要求表達得更為清楚。這種無級變速器有良好的結(jié)構(gòu)和性能優(yōu)勢，具有很強的實用價值，完全可以作為批量生產(chǎn)的無級變速器。其主要特點是：1.變速范圍較寬；2.恒功率特性好；3.可以升、降速，正、反轉(zhuǎn)。4.運轉(zhuǎn)平穩(wěn)，抗沖擊能力較強；5.輸出功率較大；6.使用壽命長；7.調(diào)速簡單，工作可靠；8.容易維修。關(guān)鍵詞：無級變速器、摩擦式、鋼球錐輪式、設(shè)計Steel ball cone pulley type variator 's designAbstract: The mechanical variable speed drives is a general purpose gearing which can accommodate the variable requirements of the process planning, mechanization of the schedule drawing ，the development of automation and the improvement of the mechanical working capabilities. The article briefly introduce the basic structure, the way of design and calculation, material and lubricate of the frication type variable speed drives, and taking them as the theory basis of the design of mechanical variable speed drives.This design uses the ball pyramid wheel as the middle transmission component, by changing its’ working radius to realize the continuous change of the output axis. This article analyzes the working theory and the working forces of the drive wheel, ball wheel and outer ring during the transmission process. It also deduces the practical calculation formula of the ball pyramid wheel type variable speed drives， it also goes on the material calculation aim at the selection parameter. It protracts the assemble-drawing of the ball pyramid wheel type variable speed drives and the accessory-drawing of the mostly drive component. So it can express more clearly of the structure and process planning of the variable speed drives.The variable speed drives has good structure and properties, and it can use as batch production. The most specialties: 1 wide range of variable speed；2 the constant output power；3 it can rotate positively and versedly；4 stable accuracy of speed；5 high output power；6 long life；7 simply and precise control of speed；8 easy maintain.Keywords: CVT、friction type、ball pyramid type、design