GANGDA synchronous belt wheel machining precision upgrade
GANGDA synchronous belt wheel machining precision upgrade
1.同步帶輪加工精度
1 synchronous belt wheel machining accuracy
同步帶輪制造工藝的發(fā)展很大程度上表現(xiàn)在精度等級與生產(chǎn)效率的提高.自七十年代以來各種同步帶輪的制造精度，普遍提高一級左右.有的甚至2～3級.一般低速同步帶輪精度由過去的8～9級提高到7～8級。機(jī)床同步帶輪由6～8級提高到4～6級.軋機(jī)同步帶輪由7～8級提高到5～6級。對于模數(shù)不大的中小規(guī)格同步帶輪，由于高性能滾齒機(jī)的開發(fā)，加上刀具材料的改善，滾齒效率有了顯著提高。采用多頭滾刀，在大進(jìn)給且條件下，可達(dá)到的切削速度為90m/s。如用超硬滾刀加工模數(shù)3左右的調(diào)質(zhì)鋼同步帶輪，切削過度可達(dá)200m／s.提高插齒效率，要受到插齒機(jī)刀具往復(fù)運動機(jī)構(gòu)的限制。最近在開發(fā)采用刀具卸載，使用靜壓軸承，增強(qiáng)刀架與立柱剛性等新結(jié)構(gòu)后，效率有明顯提高。新型插齒機(jī)的沖程數(shù)可達(dá)到2000次／分。
Development of synchronous belt wheel manufacturing process greatly in accuracy and efficiency. The manufacturing accuracy since seventy kinds of synchronous belt wheel, a general increase in level. Some even 2 ~ 3. Low speed synchronous belt wheel precision from 8 ~ 9 to 7 ~ 8 grade. Machine synchronous belt wheel is composed of 6 ~ 8 to 4 ~ 6. Mill synchronous belt wheel from 7 ~ 8 to 5 ~ 6 grade. To the modulus is small and medium-sized specifications pulley, due to the development of high performance gear hobbing machine, coupled with the improvement of tool materials, hobbing efficiency has been significantly improved. By adopting multi hob, and conditions in the feed, cutting speed can reach 90m/s. Such as the use of super hard hob modulus quenched and tempered steel 3 synchronous belt wheel, over cutting up to 200m / s. improve gear efficiency, by the gear shaper cutter reciprocating mechanism restriction. Recently the unloading in the development tool, using static pressure bearing structure, enhance the new holder and the column rigidity, the efficiency is obviously improved. The number of stroke model shaper can reach 2000 times per minute.
2.同步帶輪材質(zhì)
2 synchronous belt wheel material
同步帶輪用鋼的發(fā)展趨勢；一是含Cr，Ni，Mo的低合金鋼；二是硼鋼；三是碳氮共滲用鋼；四是易切削鋼。由于我國缺乏Ni、Cr，常用20CrMnTi滲碳鋼或用含硼加稀土鋼。重型機(jī)械常用18CrMnNiMo滲碳鋼或中碳合金鋼。機(jī)床行業(yè)食用40Cr，38CrMoAl等鋼以及高速同步帶輪用25Cr2MoV鋼進(jìn)行氮化。
Synchronous belt wheel with development trend of steel; a containing Cr, Ni, Mo low alloy steel; two steel; three is the carbonitriding steel; four is the free cutting steel. Due to the lack of commonly used Ni, Cr, 20CrMnTi steel with boron and rare earth steel or. Heavy machinery used 18CrMnNiMo steel or medium carbon alloy steel. Machine tool industry consumption of 40Cr, 38CrMoAl steel and high-speed synchronous belt wheel are nitrided 25Cr2MoV steel.
同步帶輪用鋁質(zhì)加工為多，由于輕工業(yè)的迅速發(fā)展，鋁質(zhì)同步帶輪加工不生銹，質(zhì)輕，如表面硬度不夠還可做表面硬質(zhì)氧化處理，同步帶輪表面本色氧化處理也可提高硬度，相對更耐磨，外觀更漂亮．
Aluminium processing for many synchronous belt wheel, due to the rapid development of light industry, aluminium pulley processing does not rust, light quality, such as surface hardness is not enough but also can be used for hard surface oxidation treatment, synchronous belt wheel surface color oxidation treatment also can improve the hardness, wear resistance is relatively more, look more beautiful.
3.同步帶輪與科技信息化同步
3 synchronous belt wheel and the science and technology information synchronization
人們利用計算機(jī)能對各種可能的設(shè)計方實進(jìn)行計算、分析和比較，并通過優(yōu)選，取得較為理想的結(jié)果.例如在分析同步帶輪齒面接觸區(qū)，求嚙合線與相對速度夾角中，對彈流潤滑計算以及幾何參數(shù)計算等方面編制了程序。還有，在同步帶輪修形計算與同步帶輪承載能力計算方面都編有程序.我國已編制了GB3480-83漸開線圓柱同步帶輪承載能力計算標(biāo)準(zhǔn)的程序軟件,供生產(chǎn)應(yīng)用.在同步帶輪加工方面，可以利用計算機(jī)控制整個切齒過程.使制造質(zhì)量穩(wěn)定可靠.目前，國內(nèi)在研究應(yīng)用微機(jī)對弧齒錐同步帶輪的切齒調(diào)整卡進(jìn)行計算，可對加工偏差及時調(diào)整.使齒面接觸達(dá)到比較理想的位置，并大大提高了工效。
People use the computer to design a variety of possible side real calculation, analysis and comparison, and the optimized, achieved satisfactory results. For example, in the analysis of synchronous belt tooth surface contact area, and the meshing line with the relative velocity angle, calculation of elastohydrodynamic lubrication and geometric parameter calculation, the program. Also, the calculation is programmed in the modification calculation and synchronous belt wheel bearing capacity of synchronous belt wheel. China has made GB3480-83 the carrying capacity of involute cylindrical synchronous belt wheel standard calculation software, for the application. In the aspect of synchronous belt wheel processing, can use the computer to control the whole cutting process. The manufacturing quality and stability reliable. At present, the domestic research in the application of Microcomputer on spiral bevel synchronous belt wheel teeth cutting adjustment card to calculate, can adjust the deviation in time for processing. The tooth contact reach ideal position, which greatly improves the working efficiency.
此外，根據(jù)數(shù)控原理，應(yīng)用微機(jī)對環(huán)面蝸桿螺旋齒面進(jìn)行拋物線修形，已經(jīng)應(yīng)用于生產(chǎn)。雖然這方面的工作在國內(nèi)還處于起步階段，但它對提高同步帶輪制造質(zhì)量和技術(shù)水平具有重要意義。
In addition, according to the principle of NC, parabolic modification application of Microcomputer on the torus worm tooth surface, has been applied to production. Although this work is still at the starting stage in China, but it is significance of synchronous belt wheel manufacturing quality and the level of technology to improve.
國際上，同步帶輪裝置正沿著小型化、高速化、標(biāo)準(zhǔn)化方向發(fā)展.非凡同步帶輪的應(yīng)用、同步帶輪及同步帶裝置的發(fā)展、低振動、低噪聲同步帶輪裝置的研制是同步帶輪設(shè)計方面的一些特點.為達(dá)到同步帶輪裝置小型化目的，可以提高現(xiàn)有漸開線同步帶輪的承載推力。各國普遍采用硬齒面技術(shù)，提高硬度以縮小裝置的尺寸；也可應(yīng)用以圓弧同步帶輪為代表的非凡形。英法合作研制的艦載直升飛機(jī)主傳動系統(tǒng)采用圓弧同步帶輪后，使減速器高度大為降低。隨著船舶動力由中速柴油機(jī)代替的趨勢，在大型船上采用大功率行星同步帶輪裝置確有成效；現(xiàn)在冶金、礦山、水泥一軋機(jī)等大型傳動裝置中，同步帶輪以其體積小、同軸性好、效率高的優(yōu)點而應(yīng)用愈來愈多。
Internationally, synchronous belt wheel device along the miniaturization, high speed, standardization direction development. Development and application of special synchronous belt, synchronous belt wheel, wheel and the synchronous belt device, low vibration, low noise synchronous belt wheel device is some characteristics of synchronous belt wheel design. In order to achieve synchronous belt wheel device miniaturization purpose, bearing thrust can improve the synchronous belt wheel existing involute. Countries with hardened technology, improve the hardness to reduce the device size; also can be extraordinary shaped by arc belt wheel as the representative of the. The shipboard helicopter main drive system of the cooperation in the development of circular arc synchronous belt wheel, the gear reducer to reduce height. The ship is powered by a diesel engine instead of the trend, in the large ship adopts high-power planetary synchronous belt wheel device is successful; now a large transmission metallurgy, mine, cement mill device, with the advantages of small volume, coaxial, high efficiency and good application more and more synchronous belt wheel.
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