Linear motion system with automatic lubricator

摘要

A linear motion system includes an elongated shaft, a movable member mounted at the elongated shaft, a lubricator unit defining therein a grease storage container for storing a lubricating grease, a motor mounted in the grease storage container, a lubricating grease guide connected to the motor, a controller mounted in the grease storage container, and a sensor adapted to provide an actuation signal to the controller upon movement of the movable member, causing the controller to start the motor in moving the lubricating grease guide to expel the storage lubricating grease out of the grease storage container onto the surface of the elongated shaft so as to achieve a self-lubricating effect.

主权项

1. A linear motion system, comprising:
an elongated shaft; a movable member movable linearly along said elongated shaft; a plurality of rolling elements rotatably mounted between said elongated shaft and said movable member; a lubricator unit comprising a grease storage container, a motor, a lubricating grease guide and a controller, said grease storage container comprising a grease storage chamber and a grease discharging hole in communication with said grease storage chamber, said grease storage chamber being adapted to store a lubricating grease and kept in communication with the surface of said elongated shaft via said grease discharging hole, said lubricating grease guide being mounted in said grease storage chamber of said grease storage container and connected to said motor and driven by said motor to guide said lubricating grease out of said grease storage chamber through said grease discharging hole to the surface of said elongated shaft, said controller being electrically connected to said motor and adapted to control the operation of said motor; and a sensor electrically connected to said controller of said lubricator unit and adapted to provide an actuation signal to said controller intermittently subject to movement of said movable member to cause said controller to start said motor, wherein said grease storage container further comprises a power chamber and a control chamber disposed adjacent to said grease storage chamber; said motor is mounted in said power chamber; said controller is mounted in said control chamber, wherein said grease storage container is hung on said elongated shaft and connected to one end of said movable member; said control chamber has accommodated therein a stirrer; said sensor is fixedly mounted in said control chamber of said grease storage container and adapted to detect a position change of said stirrer upon movement of said movable member and to provide said actuation signal when detected a position change of said stirrer, wherein the grease storage chamber is divided by a first partition board into a main chamber and a sub chamber, wherein the control chamber is divided by a second partition board into a control slot and a stirring bath, wherein the power chamber and the main chamber are separated by the sub chamber, and wherein the control slot and the main chamber are separated by the stirring bath.