论文部分内容阅读
提出了一种正反向1:2速比扫描模式的单向驱动往复式扫描反射镜模型,通过采用不完全齿轮传动机构和弹簧阻尼元件,在驱动元件不换向的前提下可实现反射镜正反转平稳切换。系统主要依靠弹簧的变形储能实现变速换向,降低了传统直驱式单面扫描反射镜系统换向过程中的驱动力矩输出要求。在正反向匀速扫描行程中,反射镜处于弹簧和驱动元件一对反作用力矩的共同作用下运动,有效消除了齿轮传动间隙,从原理上确保了系统传动精度。与传统直驱式单面扫描反射镜系统相比,该系统的驱动元件无需正反向切换,避免了传统系统因驱动元件频繁换向给电控设计带来的问题,而且降低了系统对驱动元件性能要求,在提高扫描频率方面具更具优势。该模型在轻小化、大行程、高精度光学扫描系统研制方面具有较大的开发应用潜力。
A one-way reciprocating scanning mirror model with forward-reverse 1: 2 speed ratio scanning mode is proposed. By using the incomplete gear transmission mechanism and the spring damping component, the mirror can be realized without changing the driving components Positive and negative smooth switching. The system relies mainly on the deformation energy storage of the spring to realize the change of direction and reduces the output requirement of the driving torque during the commutation of the traditional direct-drive single-side scanning mirror system. In the forward and reverse constant-speed scanning stroke, the mirror is under the action of a pair of reaction torque of the spring and the driving element, effectively eliminating the gear transmission gap and ensuring the transmission precision of the system in principle. Compared with the traditional direct-drive single-side scanning mirror system, the driving components of the system do not need to switch between forward and reverse, which avoids the problems caused by the frequent commutation of the driving components to the electronic control design and reduces the cost of the system to driving Component performance requirements, in improving the scanning frequency with more advantages. The model has great potential for development and application in the development of light and large stroke and high precision optical scanning system.