light load speed 中文意思是什麼
light load speed
解釋
空鉤繩速-
In the light of the problems of the air balance system of model lcj1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation, low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load
針對lcj1250氣平衡式鏈條抽油機存在氣平衡故障率高和現場維修困難等問題，提出將氣平衡改造成工作可靠的重力平衡的方案，並確定了改造的三個原則：一是保證整機的可靠性，使抽油機運轉平穩，振動噪音小，壽命長；二是力求降低生產成本，減少零部件製造，盡可能選用原來的通用件，捨去平衡缸和空氣包等氣平衡附件，在原往返架主體上懸掛一個配重箱；三是力求不改變沖程、沖次及最大懸點載荷等主要技術參數。 -
Abstract : in the light of the problems of the air balance system of model lcj1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation, low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load
文摘:針對lcj1250氣平衡式鏈條抽油機存在氣平衡故障率高和現場維修困難等問題，提出將氣平衡改造成工作可靠的重力平衡的方案，並確定了改造的三個原則：一是保證整機的可靠性，使抽油機運轉平穩，振動噪音小，壽命長；二是力求降低生產成本，減少零部件製造，盡可能選用原來的通用件，捨去平衡缸和空氣包等氣平衡附件，在原往返架主體上懸掛一個配重箱；三是力求不改變沖程、沖次及最大懸點載荷等主要技術參數。 -
Through the loss model of lim, best efficiency control scheme is proposed based on the vector control, by which low efficiency of lim under light load or low speed is improved. the control scheme is proved effective through simulation under a specified speed - location curve
通過建立電機損耗模型，在矢量控制的基礎上設計了最優效率控制策略，解決了輕載或低速運行時的效率低下問題，通過指定速度位置曲線下的模擬分析驗證了控制策略的有效性。 -
Conclusions are drawn as follows : ( 1 ) regulating the electromotor speed by adjusting the input voltage is easy to carry out, and it can be used in most of the oil fields ; ( 2 ) good energy - saving effect can be achieved under the condition of light load on the motor ; ( 3 ) the voltage cannot be regulated in a large range, and the optimal range of the voltage regulation is less than 10 % of the rated voltage
由此得出結論： （ 1 ）調電動機端電壓調速方法簡單，一次性投資少，易於實現，對於一般的油田都適用； （ 2 ）調壓調速只有在輕負荷時，即在負荷遠未達到滿負荷時才有一定的節能效果，適用於油田普遍存在的「大馬拉小車」的情況； （ 3 ）電動機調壓調速的范圍不能太大，電壓調整的最佳范圍為額定電壓的10 %以內。 -
And it can be controlled running at a rating slip, when its efficiency is the highest. then, simulation model of lim vector control system is constructed, which is proved accurate by simulation results under different speed and different load. and it is concluded that lim efficiency is lower under light load or low speed
其次，建立了考慮邊端效應的直線感應電機矢量控制系統的模擬模型，不同速度和負載下模擬結果驗證了模型的有效性，得到了電機在輕載或低速運行時效率較低的結論。 -
The weight loss of the composites is larger under the synergism of the parameters than the simply superimpose of weight loss under the single parameter. micro - cutting is the mainly abrasion mechanism under low sliding speed and light - load
利用磨損圖綜合分析了復合材料的摩擦磨損性能與各因素間的關系： （ 1 ）各因素協同作用時復合材料的磨損失重要大於各因素單獨作用時磨損失重量的簡單疊加。 -
In addition for raising rise - and - fall - speed of goods when crane is in empty load and light load situation we need a improved double - speed - type transmission based on the original single - speed winch. using the differential planetary gear train that can do movement synthesis precisely can achieve this goal
另外為了提高起重機空鉤和輕載時的貨物升降速度，要求在舊型的單速卷揚機上進行改進實現雙速傳動，而利用差動行星輪系可進行運動合成的特點能達到這一目的。 -
With the development of science and technology, mechanical equipment is having the tendency of large scale, serialization, high - speed, light - duty, centralization, automation, big power and big load
隨著科學技術與現代化工業的發展，機械設備正朝著大型化、連續化、高速化、輕型化、集中化、自動化和大功率、大載荷方向發展。 -
He performs his original function in harness most capably, carrying a light load at a moderate speed over great distances
他最早的作用就是拉小車，現在仍十分擅長此項工作，拖曳較輕載重量時能以中等速度行進相當遠的距離。
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