外文翻译--机械压力机功能设计及计算

外文翻译--机械压力机功能设计及计算 Mechanical Presses functional design and calculation ————————————————————————————————————————- Abstarct: Large mechanical press briefing functional design of the work load, the main electrical power transmission and inertia flywheel is fixed, and the application of technology based Komatsu, summed up the simple formula to complete the more complex operations, saves time and effort, practical and reliable. Key words Mechanical Presses, work load ,main motor, power Flywheel ——————————————————————————————————— Closed single large, double-action mechanical press for the successful design of the volume is not one of the important parameters, This is the work for several of the total, while the main motor, flywheel between certain, Operators are complex. Based on the study Komatsu technology on the basis of press design of work load, Main electrical power and Flywheel determined using a simple formula to complete the more complicated arithmetic. The formula called for public 2000kN edge over the slider trip 400~1000mm Closed 4:00 single action, double-action or link mechanical press can be applied. Through the different types of Komatsu Press parameters such as the public said, the slider trip itinerary pressure, cushion and the main parameters, such as motor power analysis, and more complicated formula basically the same as or similar to, Therefore, the formula saves time and effort, practical and reliable. For the following table (all is the introduction of Komatsu products). Parameters E4S600 E4S1000 E4D600+400 E4D800+500 Public 6000 10000 Inside slider Inside slider kN 6000+4000 8000+5000 Pressure itinerary 13 13 13 6 13 6 mm Largest 5555 1.8，10,3.7，102.6，10,4，10measure J Slider itinerary 600 1000 940 660 940 690 mm Trips ,113and20 10,16 10 and 15 10 and 15 min Pneumatic power 1000 1500 1000 1500 kN Motor Power AC75/50 AC132 AC90/60 AC132/88 kW Note : * The complicated formula for the calculation results, other basic calculation of the same or similar. Design of the press, in general, are based on the user's requirements for design. For the function and parameters, some done directly by the user, then according to the value. 1 Gong press for the calculation E=Ph，Ph，PS/K(1) BBDD Where : E——Press required the biggest work load, J P—— said the public power (even within the slider to move the public said Li), N; h——pressure on the trip (double-action of the pressure inside slider trip), m (h=0.013~0.015m general admission, or the requirements by the user); PB—— slider outside of the public said, N; hB—— slider outside pressure journeys m (hB=0.006m general admission, or the requirements by the user); Were cushion, N; PD—— cushion capacity coefficient (general admission KD=6); S——slider trip (double-action program for the inside slider), m Single-action design press time, according to PB=0, hB=0 calculation; without air-cushioned by the Press PD=P/6 calculation; Blanking, trimming, forging presses can be used by PD=0 calculation. I plant design and production of 8000kN Closed 4:00 single-action multi-link mechanical press as an example. Li said P=8000kN public pressure h=13mm trip, the itinerary S=800mm slider, PD=2000kN cushion edge, trips 10~18min-1. 335×0.8/6=3.7×10 (J) In E=8000×10×0.013，2000×10 2 PH main electrical power to determine the (1) AC motor : E，The maximum number of tour P,，1.1(W)H45 (2) DC Motor: EThe maximum number of tour， P(W),H45 8000kN press using the DC motor speed control, it may : 53.7，10，185P,,1.48，10(W) H45 Motor check samples, the main election to 158kW motor power 3 Flywheel GD2 Determination 716E22 GD,kgm2NK2K,2S,S(5) kk 2Where : GD—— Flywheel, kgm2 (including clutch follower. General admission GD2 15%); N——Flywheel revolutions, r/min K——Flywheel energy release rate，%; S——Changes in the rate of speed (motor slippery slip) ，%。 k Single Action Press ,intake S=10.5%,15%，K=0.199,0.278 k Double-action Press, intake S=15.5%,20%，K=0.286,0.36 k Sk more than 20%, press cycle time, the DC motor speed control or wound motor, from Sk,20.5%,30.5%，K=0.368,0.517 Variable-speed motor-driven wheels, if the low-speed, high-speed all for the same work load, required increase the speed slow rate of change, while reducing per-minute work trips. 8000kN press using the DC motor speed control, slip slip, meet the very moment when the work load of Flywheel calculated as follows : Low speed trips 10min-1, N=155r/min flywheel revolutions, Sk=28.8% election, K=0.492 By type (4) draw : 5716，3.7，10242GD,,2.24，10(kgm) 2155，0.492 GD2 value including clutch follower. According to user requirements, the press on the link in the first and cushion high, resulting in the numerical calculation is greater. Komatsu press with the Jinan Plant No. 2 and the production of similar products as compared with the corresponding parameters of the same or similar. 机械压力机功能设计及计算 摘要 介绍大型机械压力机功能设计中的作功量、主电机功率和飞轮传动惯量的确 定，并在研究应用小松技术的基础上， 总结 初级经济法重点总结下载党员个人总结TXt高中句型全总结.doc高中句型全总结.doc理论力学知识点总结pdf 出简便的公式来完成这一较为复杂的运算，省时省力，可靠实用。 关键词 机械压力机 作功量 主电机功率 飞轮转动惯量 大型闭式单、双动机械压力机的作功量是设计中一项不可忽视的重要参数，这个参数是几个方面作功量的总和，同时又与主电机、飞轮之间存在一定的关系，运算很复杂。本文在研究小松技术的基础上，将压力机设计中的作功量、主电机功率和飞轮转动惯量的确定，采用一种简便的公式来完成这一较为复杂的运算。本公式对于公称力2000kN以上、滑块行程400,1000mm的闭式四点单动、双动或多连杆机械压力机均可应用。通过对不同类型的小松压力机有关参数如公称力、滑块行程、压力行程、气垫力和主电机功率等参数的 分析 定性数据统计分析pdf销售业绩分析模板建筑结构震害分析销售进度分析表京东商城竞争战略分析 计算，与繁琐公式计算比较基本相同或相近，所以本公式省时省力，可靠实用。举例如下 表 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf (均是引进小松产品)。 注:*为繁琐公式计算结果，其他项计算基本相同或相近。 在压力机设计中，一般都是根据用户的 要求 对教师党员的评价套管和固井爆破片与爆破装置仓库管理基本要求三甲医院都需要复审吗 进行设计。对于作功量参数，有的用户直接做了规定，那么就按规定的值计算。 1 压力机作功量的计算 E=Ph，Ph，PS/K(1) BBDD 式中:E——压力机需产生的最大作功量，J; P——公称力(双动为内滑块公称力)，N; h——压力行程(双动为内滑块压力行程)，m(一般取h=0.013,0.015,或由用户所需规 定); PB——外滑块的公称力，N; hB——外滑块的压力行程，m(一般取hB=0.006m，或由用户所需规定); PD——气垫力，N; KD——气垫能力系数(一般取KD,6); S——滑块行程(双动为内滑块行程)，m。 设计单动压力机时，按PB,0、hB=0计算;不带气垫的压力机按PD,P/6计算;落料、修边、锻造用压力机可以按PD=0计算。 以我厂设计生产的8000kN闭式四点单动多连杆机械压力机为例，公称力P=8000kN,压力行程h=13mm，滑块行程S=800mm，气垫力P,2000kN,行程次数D,110,18min。 335 得 E=8000×10×0.013，2000×10×0.8/6=3.7×10 (J) 2 主电机功率P的确定 H (1)交流电动机: E，最高行程次数P,，1.1 (W) H45 (2)直流电动机: E，最高行程次数P, (W) H45 8000kN压力机采用的是直流调速电机，故得: 53.7，10，185P,,1.48，10(W) H45 查电机样本，选主电机功率为158kW。 3 飞轮转动惯量GD2的确定 E71622 kgm GD,2NK 2K,2S,S(5) kk 222 式中:GD——飞轮转动惯量，kgm(包括离合器从动件，一般取GD的15%左右); N——飞轮转数，r/min; K——飞轮的能量释放率，%; S——速度变化率(电动机滑差率)，%。 k 单动压力机，取S=10.5%,15%，K=0.199,0.278 k 双动压力机，取S=15.5%,20%，K=0.286,0.36 k S超过20%时，压力机周期时间延长，采用直流调速电动机或绕线式电动机，k 取Sk,20.5%,30.5%，K=0.368,0.517 用变速电机驱动飞轮时，如果要求低速、高速都作相同的作功量，则需加大低速时的速度变化率，同时减少每分钟工作行程次数。 8000kN压力机采用的是直流调速电机，滑差率高，满足低速时作功量的飞轮转动惯量计算如下: ,1 低速时行程次数10min时，飞轮转数N=155r/min，选S=28.8%,K=0.492 k 由式(4)得出: 5716，3.7，10242GD,,2.24，10(kgm) 2155，0.492 2GD值中包括离合器的从动件。 根据用户要求，该压力机在连线上位于首台，且气垫力大，所以导致各项计算数值也大。经与小松压力机和济南二厂生产的同类型产品相比，相应参数基本相同或相近。