摩擦皮带

In the absence of friction,belts would not be capable of conveying power from one machine to another.

1在没有摩擦的时候，皮带不能把一个机器的动力传导给另外一个。

First of all, the work on the belt conveyor characteristics, Development, principle, classification and secondly, the friction on the tape drive principle; Finally, the working conditions under their belt conveyors, including the transmission of the slowdown Is part of a detailed design and design calculations, the simple analysis of the belt material deviation and spread the causes and solutions, has introduced several other forms of belt machine.

首先，介绍了带式输送机的工作特点、发展概况、工作原理，分类；其次，介绍了胶带的摩擦传动原理；最后，根据带式输送机的工作条件对其计算，其中对传动部分的减速器部分进行了详细的设计及设计计算，简单分析了皮带跑偏及撒料的原因和解决方法，又介绍了其他几种形式的皮带机。

The paper analyses two kinds of new formulas on the equivalent friction coefficient of V-belt drive in the present mechanical design and finds out that one is reasonable but has certain error and the other is wrong.

对现行机械设计中关于V带传动当量摩擦系数的2种计算公式进行分析。认为其中一种公式是合理的，但存在一定的误差；而另一种公式却是错误的。通过推导V带欧拉公式，给出了计算V带传动当量摩擦系数的准确公式，并在公式中引入了一个新的参数——摩擦力方向角。在考虑皮带拉力变化既有径向滑动又有周向滑动的前提下，改进后的计算公式比现有公式更加完善

First of all, the work on the beltconveyor characteristics, Development, principle, classificationand secondly, the friction on the tape drive principle; Finally,the working conditions under their belt conveyors, including thetransmission of the slowdown Is part of a detailed design anddesign calculations, the simple analysis of the belt materialdeviation and spread the causes and solutions, has introducedseveral other forms of belt machine.

首先，介绍了带式输送机的工作特点、发展概况、工作原理，分类；其次，介绍了胶带的摩擦传动原理；最后，根据带式输送机的工作条件对其计算，其中对传动部分的减速器部分进行了详细的设计及设计计算，简单分析了皮带跑偏及撒料的原因和解决方法，又介绍了其他几种形式的皮带机。

The people very are early realize CVT are facilitate driving, enhance the vehicles fuel oil efficient ideal installment, appears the bipyramid ball, the plate, the hooped column body from several dozens years ago and so on develops the leather belt transmission, but as a result of the rubbing surface friction coefficient and the components withstanding unit pressure limit, adds in the processing craft and the control difficult problem, cannot transmit compares the high efficiency, only limits uses in on the compact car.

人们很早就意识到CVT是方便驾驶、提高车辆燃油经济性的理想装置，由几十年前出现的双锥体球、盘、环柱体等发展到皮带传动，但由于摩擦面的摩擦系数及零件承受单位压力的限制，加之加工工艺和控制上的难题，不能传递较大功率，仅限用于微型汽车上。

Professional operating various lathes, drilling machine, combination machine tool, milling machine, boring machine, planer, slotting machine, grinding machine, broaching machine, sawing machine, machine tool accessories, machine tool accessories, machine tool hydraulic parts, pneumatic components, ball screw, friction plate, chuck , card claw, various fixtures, cooling pumps, gear pumps, vane pump, variable pump, all kinds of machine friction plate, oil cups, glib, butter cups, oil cups, flat belts, ribbed belts, timing belt, the center frame, with the tool carrier, dividing head, legislative milling head, all kinds of commonly used air hammer parts, forging machine tool parts, punch parts, adjust the various specifications Sizing Block, V-frame, flat panel.

专业经营各种车床、钻床、组合机床、铣床、镗床、刨床、插床、磨床、拉床、锯床，机床配件、机床附件、机床液压件、气动元件、滚珠丝杆、摩擦片、卡盘、卡爪、各种夹具、冷却油泵、齿轮泵、叶片泵、变量泵、各种机床摩擦片、油杯、油嘴、黄油杯、机油杯、平皮带、多楔带、同步带、中心架、跟刀架、分度头、立铣头，各种气锤常用件、锻压机床配件、冲床配件、各种规格调整垫铁、V型架、平板。

Based on the accident analysis of the belt conveyor ,shows that the appearances of the belt friction with the metal generates fire,belt blocking,belt down sliding,the bydraulic coupling generates fire,can only be prevented by the measures of production management and technical management.

通过对皮带输送机事故分析，可看到扼治住皮带与金属摩擦热起火、皮带卡阻、皮带下滑、液力联轴器起火现象，从生产管理和技术管理上采取有力措施，就能减少或避免皮带输送机事故发

Instruction: friction band is installed between vacuum box and adhesive belt with airproofing, lubrication and cooling to lessen resi

真空皮带脱水机备件摩擦带摩擦带 friction band 说明：摩擦带是安装在真空盒与胶带之间，并以水密封、润滑、冷却，减少胶带运行的阻力。

The patented optimal inserted direct-drive servomotor. Rotary cutter. Convenient installation, clean and non-polluted, low noise and vibration. Combined with aerospace technology, high speed startup/brake, precise needle stop locating. It only takes 0.12s from 0 to 4000 stitches. The absence of V-belt avoids belt abrasion and spooling thoroughly. Reduce greatly the failure rate and improve highly sewing efficiency.

优化的内置式专利直驱伺服马达；圆刀剪线设计；低振动、低噪音、安装方便、清洁环保；结合了航空航天技术，起缝、停车迅速、停针定位精准，0至4000针的转换只需0.12秒；无&V&字型皮带传动，彻底解决了因皮带摩擦而产生的料屑污染、皮带缠线的问题，并且大大减少停车、提速时的故障率，提高缝制效率。

The patented optimal inserted direct-drive servomotor. Rotary cutter. Convenient installation, cleannon-polluted, low noisevibration. Combined with aerospace technology, high speed startup/brake, precise needle stop locating. It only takes 0.12s from 0 to 4000 stitches. The absence of V-belt avoids belt abrasionspooling thoroughly. Reduce greatly the failure rateimprove highly sewing efficiency.

优化的内置式专利直驱伺服马达；圆刀剪线设计；低振动、低噪音、安装方便、清洁环保；结合了航空航天技术，起缝、停车迅速、停针定位精准，0至4000针的转换只需0.12秒；无& V &字型皮带传动，彻底解决了因皮带摩擦而产生的料屑污染、皮带缠线的问题，并且大大减少停车、提速时的故障率，提高缝制效率。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。