太钢二次混合机改为实心胶轮摩擦传动

介绍了太钢烧结厂二次混合机由充气胶轮摩擦传动改为实心胶轮摩擦传动的过程。分析了改造后的效果，以及推广价值。

二次混合机改为实心胶轮摩擦传动圆筒混合机

太钢烧结厂二次混合机由充气胶轮摩擦传动圆筒混合机改为实心胶轮摩擦传动圆筒混合机，使用效果非常好，有推广应用价值。

实心胶轮传动混合机在攀钢烧结上的应用

圆筒混合机是烧结生产必备的关键设备。本文拟对攀钢烧结生产过去使用的齿轮传动方式混合机所存在的缺点分析 ,通过采用新技术 ,使用胶轮传动方式混合机后所带来的良好经济效益及社会效益 ,阐述了胶轮传动混合机在攀钢烧结生产中的应用价值及推广价值。

立井施工中吊盘实心胶轮稳固装置的改进

在立井井筒施工中，凿井吊盘由钢丝绳悬吊。安装在吊盘上抓岩机的运行，会使吊盘受到较大的水平和竖直载荷作用。为防止吊盘在施工过程中上下及左右晃动损坏井壁，通常采用木楔法、液动法、丝杠法、气动法、充气轮胎法、实心胶轮法等方法稳固吊盘。

Φ3.6 m×14 m实心胶轮传动圆筒混合机在冶金企业中的应用优势

结合河南某冶炼厂混矿生产的特点,对Φ3.6 m×14 m圆筒混合机的齿轮传动、实心胶轮传动和充气轮胎传动等三种传动方式的结构和特点进行对比分析。经过综合分析,实心胶轮传动圆筒混合机在这种混矿生产中具有运行稳定、振动小、噪声低、初期投资少、制造周期短、运行成本低、故障率低、维修简单、节能等优点。

一种新型实心胎专用切胶机定位裁切机构

一种实心胎半部件定位裁切机构,采用液压双刀剪切裁断机构代替传统的气动或液压单刀裁断机构,上刀由油缸驱动垂直运行裁切,下刀位置可以根据半部件厚度进行微调,以保证两刀间隙,安全可靠。

Analysis of Static Temperature Field of Vehicle's Solid Rubber Tire

Aim To analyse the static temperature field ofthe solid rubber tire(SRT).Methods The mechanical and thermal FE models were developed and analyzed respectively with the FE software ANSYS.Results The maximum temperature becomes higher with the higher with the higher velocity of tire and scales down slightly with the higher convection coefficients.The mixed models are reasonable.Conclusion The study on static temperature field is important and reasonable.It gives the fundament for life analysis of SRT.

Φ3m×9m圆筒混合机改进设计

石横特钢厂Φ3m×9m一次圆筒混合机运行初期存在筒体挡圈开焊、本体撕裂、实心胶轮磨损较快,齿式联轴器易磨损断齿,上料倾角大,混料小球易破碎等问题,为此,采取增加混合机倾角、改用直径较大性能较好的实心胶轮、更换联轴器等措施,实心胶轮的使用寿命由90天延长为360天,设备故障率由0.8%降低至0.05%。

国产清仓机行走机构改造

我公司2003年采购了6台CCJL系列移动式螺旋清仓机。其绞龙采用半敞开式,绞龙前方装有3个支撑轮。行走机构由行走轮（包括主动轮和从动轮）、电动机、减速器及配重箱等部件组成,行走机构采用电动机驱动方式,电机通过双级摆线针轮减速器带动实心胶轮转动。

Effect of carvedilol on cardiac function and left ventricular remodeling in rats after acute myocardial infarction

Objective: To observe the effect of carvedilol injection on left ventricular function and collagen remodeling in rat with myocardial infarction. Methods: Sixty rats with a model of myocardial infarction were randomly divided into nine groups. The rats of therapeutical group were treated with carvedilol injection (2 mg/d intraperitoneal injection) and/or captopil (2 g/L drinking water) . Acute myocardial infarction ( AMI) group did not receive drug treatment. The animals were sacrificed at 4 weeks and 8 weeks after coronary artery ligation. The levels of plasma angiotensin II and plasma aldosterone and left ventricle function were determined at different time. The collagen content and the ratio of type I and III collagen of noninfarcted area were also assessed. Results: Compared with AMI group, the levels of plasma and myocardium angiotensin II and plasma aldosterone in both carvedilol and captopil group decreased at the eighth week (P<0.05). In addition, carvedilol improved systolic and diastolic function (P<0. 05). Compared with sham group, both collagen content and the ratio of type I / III collagen of noninfarcted area increased in AMI4 and AMI8 group (P<0. 05). The hydroxyproline levels and the ratio of type I/III collagen significantly decreased after carvedilol and/or captopil treatment , compared with AMI group at 4 or 8 week (P <0. 05). Conclusion: Carvedilol can improve cardiac function after myocardial infarction and has beneficial effect on left ventricular remodeling.

成长中的网球

13世纪末的法国人戏耍着"掌球游戏"的时候,所用的道具不过是一只由埃及坦尼斯镇生产的以布片缝制、包裹着毛发的球状物。此后,缺乏弹性的"皮制球"或是没有加压的"实心胶球"又陪伴嗜球者度过了数百年的时光。1912年,设在英国的邓禄普公司率先成功地制造了全世界第一颗以空心橡胶作为可充气内胆、外层包裹毡布的网球。而在当年的温布尔顿,这颗小小的网球收获了惊人的好评。20世纪50年代。