公开(公告)号：US06360846B1

公开(公告)日：2002-03-26

申请号：US09570702

申请日：2000-05-15

申请人： Ronald C. Beal ,  Darryl J. Brincks ,  Robert C. Brown ,  William G. Clelland, III ,  Kevin K. Fanter ,  Gary F. Stewart ,  John Styfhoorn

发明人： Ronald C. Beal ,  Darryl J. Brincks ,  Robert C. Brown ,  William G. Clelland, III ,  Kevin K. Fanter ,  Gary F. Stewart ,  John Styfhoorn

IPC分类号： F16N1706

CPC分类号： F16N29/00

摘要： Apparatus and method for leak testing and adding lubricating oil to enclosed reservoirs of undercarriage components of crawler-type equipment. Barometric pressure is measured by a transducer mounted on a handle from which an elongated wand extends, the wand having a nozzle on the end opposite the handle. The wand is inserted into the reservoir and communication is successively established and terminated between the handle and a source of pressurized nitrogen, a vacuum generator and a source of lubricating oil. After raising the pressure in the reservoir by connecting it to the nitrogen source, pressure is again measured at the end of a wait period to determine if the drop is greater or less than a predetermined amount indicating seal integrity. The vacuum generator is then placed in communication with the handle to lower the pressure within the reservoir to 15% of the previously measured barometric pressure, following which oil is pumped into the reservoir until the pressure therein equals the sum of the barometric pressure and back pressure of the oil flow. Communications are established and terminated by pneumatically operated valves which receive air through solenoid operated pilot valves controlled by a programmable logic controller (PLC). A switch on the handle is actuated by the operator to initiate action of the PLC and an operator keypad is also provided for manually initiating other operations.

摘要翻译： 履带式设备底盘部件封闭式储油罐的泄漏检测和润滑油添加装置及方法。 气压通过安装在手柄上的换能器来测量，细长棒从该手柄延伸出来，棒在与手柄相对的端部具有喷嘴。 将魔杖插入储存器中，并且在手柄和加压氮源，真空发生器和润滑油源之间相继建立和终止通信。 在通过将其连接到氮源来提高储存器中的压力之后，再次在等待期结束时测量压力，以确定液滴是否大于或小于指示密封完整性的预定量。 然后将真空发生器与手柄连通以将储存器内的压力降低到先前测量的大气压力的15％，随后将该油泵入储存器中，直到其中的压力等于大气压力和背压的总和 的油流。 通过由可编程逻辑控制器（PLC）控制的电磁操作先导阀接收空气的气动阀门建立和终止通信。 手柄上的开关由操作员启动以启动PLC的动作，并且还提供操作者键盘以手动启动其他操作。