弧齿直齿轮和斜齿轮啮合的数学建模及实体造型的实现

弧齿直斜齿为一种新型齿轮传动,因此该齿轮传动的啮合特性分析非常必要也非常重要,它可以为后续的研究提供理论基础。基于齿轮啮合原理和微分几何的理论,推导出了弧齿直齿轮和斜齿轮传动的齿面方程,通过解该齿面方程,得出了弧齿直齿轮和斜齿轮的齿面点阵,把此点阵导入Pro/E,通过Pro/E中的实体造型方法实现了弧齿直齿轮和斜齿轮的实体造型,也进一步验证了弧齿直齿传动的理论可行性。

Analysis of axial force of double circular arc helical gear hydraulic pump and design of its balancing device

In view of the axial force produced in the working process of double arc helical gear hydraulic pump,the theory of differential equation of curve and curved surface was utilized so that the calculation formula of axial force was obtained and the relationship between the axial force and structure parameters of gears was clarified.In order to balance the axial force,the pressure oil in the high pressure area was introduced into the end face of the plunger to press the plunger against the gear shaft,and the hydrostatic bearing whose type is plunger at the end of the shaft was designed.In order to verify the balance effect of axial force,the leakage owing to end clearance and volume efficiency of gear hydraulic pump before and after the balancing process was analyzed.This paper provides a new analysis idea and balance scheme for the axial force produced in the working process of the double arc helical gear hydraulic pump,which can reduce the leakage owing to end clearance caused by the axial force and improve the volume efficiency of the gear hydraulic pump.

新型减速器传动结构设计与分析

针对现有各类减速器能耗高、效率低等缺点,设计出一套新型圆锥-圆柱二级减速器,高速级传动齿轮采用圆锥弧齿锥齿轮,低速级传动齿轮采用圆柱斜齿齿轮,利用传统设计方法和有限元法,依据相关国家标准,对其传动结构进行了设计和分析,计算结果表明,该设计满足传动系统的性能要求,分析结果为该减速器传动结构的进一步优化提供参考。