论文部分内容阅读
M7120A(D)和M7150A卧轴矩台平面磨床的磨头为三块轴瓦式支承,其使用要求为润滑油浸入轴承后,主轴才能启动,以建立动压润滑。当润滑泵失电后能尽快切断电源。为此我们原设计利用磨头润滑回油的流速位能差将接在回油系统中的GY57A-1.5型水银开关装置中的浮筒浮起,借顶杆顶起水银开关接通砂轮驱动电路,起到电、液安全连锁防护作用。 GY57A-1.5型水银开装置零件众多,结构繁琐,无论装配,使用,维护,搬运不当都很容易产生故障,失却安全,防护作用。例如:
M7120A (D) and M7150A horizontal axis moment table grinder grinder for the three bearing pad bearing, its use requirements for oil immersion bearings, the spindle can start to establish dynamic pressure lubrication. When the lubrication pump power cut off as soon as possible after the power. To this end, our original design using the grinding head oil return flow velocity difference will be connected to the oil return system GY57A-1.5 type mercury switch device floats float by ejector jack hydrant switch connected to the wheel drive circuit, Play electricity, liquid safety chain protection. GY57A-1.5 type mercury-guillotine device has many parts and complicated structure. It is easy to malfunction and lose safety and protection no matter assembling, using, maintaining or handling improperly. E.g: