刀盘

Cutterhead is one of the most critical components of shield machine.

刀盘是盾构机中极其重要的部件，本文介绍了盾构机刀盘液压控制的驱动系统、密封系统及自动润滑系统的工作原理及其维护方法。

The factors that have effect on the packing fixed weight of polyester staple were analysed from the aspects such as the desigh defects of the cutterhead,the inaccuracy of the measurement and the not standard operation.

通过对刀盘设计缺陷、计量不准、操作不规范等影响涤纶短纤打包定量率因素的分析，找出了改进措施，如改造刀盘、调整切断机速度、优化计量控制仪参数、规范日常操作等，从而使涤纶短纤打包定量率由30%提升到98%。

It is shown that the friction force and bulkhead thrust are the main factors of shield thrust setting, while the friction between the cutterhead and soil is the main factors of cutterhead torque setting. Friction force between shield and soil would make front soil of shield upheave, and subsidence of surface soil is induced by ground loss when the friction force between the cutterhead and soil results in the surface settlement asymmetrical distribution.

通过计算发现，盾构施工中盾壳摩擦和正面推力是盾构推力设置的主要因素，而刀盘与土体摩擦是刀盘扭矩设置的主要因素，盾构前方土体隆起主要由盾壳摩擦引起，刀盘摩擦作用主要引起地表沉降的非对称分布，地表沉降主要由盾尾空隙产生。

By considering torque characteristics of variable-frequency motors and mesh stiffness as well as backlash nonlinearity in gear transmission,a dynamics model for the cutting system of shield tunneling machine with redundant drives was established. The fluctuation characteristics of torque loads and dynamic cutterhead driving torque in composite strata were analyzed.

复合地层掘进扭矩载荷突变是造成盾构机掘进过程中堵转停机的直接原因，考虑盾构机刀盘驱动变频调速电机特性、转矩传递过程中齿轮啮合刚度及齿侧间隙等非线性因素，建立冗余驱动的盾构机刀盘切削系统机电耦合动力学模型；针对典型复合地层地质条件，对盾构机在上软下硬地层掘进过程中刀盘驱动转矩动态特性进行仿真分析。

Based on the analysis of the key components of disc ditcher, the maximum lift height of the rotary blade shaft and the minimum size of the elevating device as the objective functions were introduced to establish a nonlinear mathematical model satisfiable to multiple constraint conditions of mechanical structure and agronomic demands.

为了解决圆盘开沟机在下地、过梗、爬坡过程中出现的旋耕刀易破损、刀盘支架易变形等问题，通过对其关键部件的分析研究，以刀盘轴最大提升高度和升降装置最小尺寸为目标函数建立数学模型；用Matlab软件对其结构尺寸进行参数优化。

Huayi tools now produce: disposable ultra micron carbide, ceramic, metal-ceramics tools; numerical control handle, arbor, cutter head; PCD, CBN blade; cobalt HSS, ultra micron carbide, metal-ceramic pan, ball-end milling, rake blade, rose-reamer, carving tools, left driller, and deep-hole driller, step driller, reamer, screw, saw blade, Welding tool, and non-standard forming cutter.

华益工具目前生产产品：舍弃式超微粒硬质合金、陶瓷、金属陶瓷刀片；数控刀柄、刀杆、刀盘；PCD、CBN刀片；钴高速钢、超微粒硬质合金、金属陶瓷平底、球头铣刀、斜度刀、倒角刀、雕刻刀、钻头、左钻、深孔钻、台阶钻、铰刀、丝攻、锯片；焊接刀具、及非标成形刀具。

The excavation surface model of the composition geologic strata for the shield machine was established, in which the soft soil and hard rocks are taken into account simultaneously. In terms of the cutting mechanism of the individual disc cutter and drag scraper, the total bending moment model on the cutterheads of shield machines was proposed. The bending moment behavior was discussed when the shield machine excavates in the composition geologic strata.

针对盾构机在掘进过程中上软下硬的复合地质结构，建立了其刀盘截面圆模型，基于单个切削刀和盘形滚刀的切削机制，建立了复合岩土层掘进时刀盘平面内总弯矩分析模型，分析了与刀盘接触的撑子面内，不同软土面积分数的复合地质条件下，刀盘旋转掘进过程中的弯矩动态特性。

For five-coordinate NC end milling, the author gives the equation of tilt angle, the optimum algorithm of tilt angle, the analysis of machined errors, the compensative algorithm for cutter axis tilt error, and the formulae of feed length, feed width and cutter axis swing angle.

推导了五坐标端铣数控加工中的后跟角计算公式，提出了后跟角的优化计算方法——刀盘周边7点干涉检验法，分析了各种加工误差，提出了刀轴摆动误差补偿方法——刀具切触点偏置法，给出了走刀步长、切削宽度以及刀轴摆角的计算公式。

Second, professional sales and wholesale Tool: 1, sales in Europe, the United States Kennametal to Scafa, Sweden Sandvik brand knives; 2, sales of Japan's Mitsubishi, Toshiba, Kyocera, Sumitomo brand knives; 3, sales Korea KORLOY, Taegu Tec, VKX thread cutter knife brands such as; 4, sales of Units turret system Mitsui, knives Units disk, Taiwan thread cutter knives.

销售欧，美国肯纳，以斯卡，瑞典山特维克品牌刀具；2、销售日本三菱、东芝、京瓷、住友品牌刀具；3、销售韩国KORLOY、特固克，VKX螺纹刀等品牌刀具；4、销售台制三井刀架，台制刀盘，台制螺纹刀等刀具。

The optimized design for knife disk of a mobile wood chipper was provided in order to improve the cutting performance and decrease the self-weight of the chipper, therefore to further reduce the energy consumption and production cost,and then increase economic efficiency.

介绍了在设计移动式小型卧式枝桠削片机的过程中，对削片机切削性能和自身质量影响较大的刀盘进行优化的情况，为刀盘改进提供一定的理论依据。优化设计后减少了能耗，降低了生产成本。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。