成都工业职业技术学院积极响应高等职业教育创新发展行动计划号召，搭建起创新产业职业教育合作平台，形成了人才共育机制，引进国家高新技术企业，校企合作共建面向市场、独立核算的精密制造校内生产性实训基地。该基地集生产、实践教学、技术培训、技能鉴定、新产品研发与试制于一体的，权责明晰。其校企共建共管、共享共赢的模式将为职业学校生产性实训基地的建设与运行提供可借鉴的经验。

《机械设计基础》是机械类所有专业的重要专业技术基础课程.为了在机械制造专业群《机械设计基础》课程中实施有效的德育渗透,将思想政治教育融入课程教学全过程,实现全程育人、全方位育人.根据课程特点和教学内容,从五个教学模块论述如何在教学过程中开展课程思政教育. 在获取专业知识的同时帮助学生树立正确的世界观、人生观、价值观,培养学生的工匠精神和职业道德意识.

以成都工业职业技术学院机械制造专业群为研究对象,通过分析研究目前国内双高专业群规划背景下的教师队伍建设情况,提出在双高规划建设下机械制造专业群教师队伍建设的新要求及采取的新措施.通过对现有专任教师类型进行类别细分,为教师定标等措施进行教师队伍建设改革探索,以期能达到进一步提升教师职业素养和实践能力,从而提高人才培养质量.因此,该研究工作具有一定的实践推广价值.

为了分析关键参数对滚子包络内啮合蜗杆传动接触与润滑性能的影响,构建了该新型蜗杆传动的数学模型,通过啮合方程构建了该传动的润滑角与诱导法曲率方程,利用数值计算方法分析了中心距、传动比、蜗轮偏转角、滚子半径等关键参数对蜗杆传动润滑与接触性能的影响。分析研究得知,在这些关键参数中,蜗轮偏转角对滚子包络内啮合蜗杆传动的接触性能与润滑性能有较大的影响,建议蜗轮偏转角取值在0°～40°为最佳。选取了相应参数进行三维建模,验证了分析参数的有效性。该研究为滚子包络内啮合蜗杆传动的进一步研究提供了参考。

The cylindrical roller enveloping end-face internal engagement worm gear with the worm-wheel rotational deflection is a novel transmission that can achieve multi-load and different corner angular outputs.Analysis of the effect of the worm gear deflection angle on potential root-cutting and rotation of performance is important for understanding the device.The analysis of root-cutting and performance of rotation is carried out by using boundary curve equation and rotational formula.The study indicates that the worm-wheel rotational deflection angle that is equal or larger than 44° has occurred undercutting,and the performance of rotation is degraded with the increase in wheel rotational angle;at the same time,performance of rotation is degraded with the increase in the curvature of the contact line on the cylindrical roller.The study provides a reference for the selection of the worm-wheel rotational deflection of this new driving.

基于计算流体动力学(CFD)的动压效应理论,建立了螺旋槽干气密封气膜流场控制微分方程并进行建模,确定了计算区域.根据文献给出的实验数据,采用FLUENT对气膜压力场进行求解,得到了密封计算区域动环端面处气膜压力沿半径方向的分布.本文对干气密封的稳态特性、槽型几何参数对密封性能(泄漏量和气膜刚度)的影响进行分析研究,并结合文献实验数据对螺旋槽干气密封端面槽型参数进行优化,以保证最低泄漏量的同时得到最大气膜刚度,从而为进一步的研究奠定基础.

Based on elementary theory of dynamic pressure effects in computational fluid dynamics( CFD),this paper establishs the control differential equations of gas film flow field in T-groove dry gas seal.Adopting CFD software package FLUENT to solve gas film pressure field,we obtain the radial pressure distribution node chart in the calculated region,and then draw the conclusion that T-groove dry gas seal can produce better hydrodynamic pressure effects.This paper analyzes the influence of partial groove geometric parameters on zero dimension opening force and the gas film rigidity of sealing property,and obtains the best values of partial parameters.

The paper discusses technology of spiral groove dry gas seal and analyzes its structure, characteristics and working principle in detail. The seal parameters are also presented and dry gas seal system is analyzed in example.