DESIGN AND VIBRATION REDUCTION OPTIMIZATION OF THE ANTI-COLLISION MECHANISM

FU Min; WANG Kai; SU HaiLong

doi:10.16579/j.issn.1001.9669.2019.03.036

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DESIGN AND VIBRATION REDUCTION OPTIMIZATION OF THE ANTI-COLLISION MECHANISM

更新时间：2022-09-22

- DESIGN AND VIBRATION REDUCTION OPTIMIZATION OF THE ANTI-COLLISION MECHANISM
- Journal of Mechanical Strength Vol. 41, Issue 3, Pages: 729-733(2019)
- 作者机构：
  
  1. 天津科技大学机械工程学院天津市轻工与食品工程机械装备集成设计与在线监控重点实验室
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2019.03.036
  CLC：
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FU Min, WANG Kai, SU HaiLong. DESIGN AND VIBRATION REDUCTION OPTIMIZATION OF THE ANTI-COLLISION MECHANISM. [J]. 41(3):729-733(2019)
DOI：

FU Min, WANG Kai, SU HaiLong. DESIGN AND VIBRATION REDUCTION OPTIMIZATION OF THE ANTI-COLLISION MECHANISM. [J]. 41(3):729-733(2019) DOI： 10.16579/j.issn.1001.9669.2019.03.036.

摘要

由于存在钢坯撞击标识设备的风险,所以需要设计一套防撞机构。钢坯撞击时,标识枪头向后移动,通过正弦机构带动定位销拔出,激发支撑臂抬起,从而避过钢坯撞击。钢坯不撞击时,防撞机构担任枪架职能,带动枪体运动,其振动会对标识效果产生不利影响。通过受力计算知X方向加速阶段以及Y方向加速上升阶段,防撞机构受力最大。施加适当的载荷以及边界条件,进行了谐响应分析,得到了不同激励频率下的振幅。对防撞机构的结构进行优化,再进行谐响应分析,结果显示:优化后振幅明显降低,削弱了振动对标识效果的不利影响。

Abstract

Due to the risk of the billet hitting the marking equipment, it is necessary to design a set of anti-collision mechanism. When the billet hits the marking equipment, the marking gun goes back and the positioning pins are pulled out by a scotch-yoke mechanism. Then the support arms lift to avoid the billet. Before the impact, the anti-collision mechanism performs as a gun frame, carrying the gun moving. However, the vibration may have an adverse impact on the marking effect. The maximum force appears when the marking gun is moving in the accelerative stage in X and Y orientations. The load and boundary conditions were set according to the actual load condition of the anti-collision mechanism. The harmonic response analysis calculated the amplitude of X and Y orientations of the marking gun at different frequencies. Then the structure of the anti-collision mechanism was improved and the harmonic response analysis was done again. The results show that the amplitude of the improved structure has been reduced dramatically and the marking effect has been improved.

关键词

防撞机构正弦机构振动谐响应分析

Keywords

Anti-collision mechanismScotch-yoke mechanismVibrationHarmonic response analysis

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