齿轮

The kinematical admissible velocity fields is got through theory analysis, in addition, the calculation formulas of forming load and forming power of helical gears and spur gears are deduced using upper bound method.

通过理论分析，建立了动可容速度场，并且应用上限法推导了直齿轮和斜齿轮成形载荷、成形功率的计算公式，计算所得上限力接近试验测得载荷，并分析了螺旋角对斜齿轮冷锻载荷的影响。

Nonlinear frequency response characteristics of a 2K-H planetary gearing system with multiple backlash has been calculated by using the developed analytical MDOF harmonic balance method, and has been compared with corresponding linear system. Again, influence of parameters on dynamic behavior is discussed.

通过采用本文推导的多自由度解析谐波平衡法求解2K—H行星齿轮机构的稳态响应，本文计算了间隙存在时行星齿轮系统的非线性动态特性，并就系统的非线性动态特性与线性系统的对比以及参数对行星齿轮系统动态特性的影响进行了分析。

By applying the difference arithmetic to solve the differential vibration model of the single-degree-of-freedom,the acceleration responses of the vibrated bevel wheel was calculated.The bevel wheel contact fault was simulated by taking it as the impulsion loading in local point.By using techniques of wavelet de-noising and demodulated resonance,gear contact character information was picked up successfully.

从齿轮的单自由度振动模型出发，运用差分算法对模型进行求解，得到斜齿轮的振动加速度响应，将齿面接触型故障等效为在局部点突加一个冲击载荷，对齿轮齿面接触型故障进行了仿真，利用小波降噪和共振解调技术分别对仿真的染噪振动加速度信号进行处理，成功地提取了轮齿接触故障的信息。

Nanyang Wekda Truck Gear Co., Ltd. is a special manufacturer of gear, a High-Tech enterprise of Henan Prov., mainly producing front axle, rear axle and rear axle hyperboloidal gear of autotruck, which are High-Teck products of Henan Prov.

南阳威克达汽车齿轮股份有限公司是专业齿轮制造商，是河南省高新技术企业，主导产品是载重汽车后桥主被动齿轮、前轴总成、后桥总成，均被评为河南省高新技术产品。

Parallel shafts, however, can also be connected by gears of another type, and a spur gear can be mated with a gear of a different type.

平行槽，不过，也可以连接齿轮的另一种类型，和一个正齿轮可以交配与齿轮的一种不同类型。

Therefore, both the theoretical research and the practical application, it is very necessary to establish the basic theory of non-linear dynamics of spiral bevel gears and hypoid gear drives.

对于齿轮系统动力学的研究，不但可以分析和预测齿轮系统的振动和噪声，而且反过来也对齿轮的设计和加工提出了新的要求。

When some anti-abrasion and extreme pressure additives are added into, polyether becomes an ideal gear lubricant which is suitable for the lubrication of all spur gears, bevel gears and turbine scroll bars of ball mill, muller, bucker and quarry plant, especially the lubrication of long service life for all turbine gears and close gears under overloading running.

具有优良的润滑性和极压抗磨性，能禁受高速低扭矩，低速高扭矩及高速冲击负荷的使用条件，能防止擦伤和磨损。有优良的氧化安定性，以减少沉积物和漆膜和生成，有优良的防腐性，和抗泡性。适用于要求使用API GL-5，GL-4级油或MIL-L-2105D规格油和齿轮润滑，如驱动桥双曲线齿轮和变速箱齿轮的润滑等。

Based on the involute's basic principles and theoretical formulas, input the involute's formulas of cartesian coordinates into the equation editor, accordingly create the precise involute of gear's contour. Based on the formula of helical gear's parameters, accurately create a curve of tooth profile. Create the chraceristics of helical gear by ordering of swept blend and array.

依据渐开线生成的基本原理和理论公式，在方程编辑器中输入渐开线的笛卡尔坐标方程，从而生成精确的齿轮轮廓渐开线；根据角变位斜齿轮各参数的计算公式，精确创建了齿廓曲线；利用扫描混合和阵列命令创建斜齿轮的轮齿特征。

The brake motor is directly coupled to the gear box, eliminating chain, sprocket and open gear type drive.

制动电动机直接连接到齿轮箱，取消了链条，链齿轮和开式齿轮驱动。

Jiaxing City, Zhejiang Province Zhengbiao Gear Industrial Co., Ltd., is a company specializing in the production chain wheel, gear and other mechanical parts of the enterprise, The company has many sets of gear, chain wheel production equipment and excellent technical staff, short delivery cycle, quality assurance, Products are sold throughout the country.

浙江省嘉兴市正标齿轮工业有限公司，是一家专业生产链轮、齿轮等机械零部件的企业，公司拥有多套齿轮、链轮生产设备和优秀的技术人员，交货周期短，质量保证，产品销往全国各地。

No clear conclusions can be made about the predictie alidity of specific measures, they found, except for criteria for the underuse of drugs for cardioascular disease.

除了心血管病不合理用药标准外，对于特定评价方法的预测效度没有明确的结论。

The third and last is that almost all of them, being infinite in number, have been impostures, and by idle and crafty brains merely contrived and feigned after the event past.

第三、即最后一点是：几乎所有这些不胜枚举的预言都是欺人之谈，都是在事件过后由无聊而狡猾的脑筋推测与凭空捏造的。