Robot transmission with a pressure compensation device

摘要

The invention relates to a robot transmission (1) for a multi-axis robot, in particular for a painting robot or a hand-held robot of a painting system for painting motor vehicle body components. Said transmission comprises a transmission housing (6) which is filled, when in operation, at least partially with a lubricant according to an operationally-dependent lubricant pressure, in order to lubricate the robot transmission (1), and has a construction-defined maximum pressure for the lubrication pressure. The transmission housing (6) is not air-tight if the lubrication pressure in the transmission housing (6) exceeds the maximum pressure. According to the invention, the robot transmission also comprises a pressure compensation device (7) which compensates the pressure in the transmission housing (6) and thus prevents the lubrication pressure in the transmission housing (6) from exceeding the maximum pressure.

主权项

1. A multi-axis robot having a plurality of separate axes, the multi-axis robot comprising:
a first gear box associated with a first robot axis, the first gear box configured to be filled at least in part during operation with a lubricant at an operation-dependent lubricant pressure; a second gear box associated with a second robot axis, the second gear box configured to be filled at least in part during operation with the lubricant at the operation-dependent lubricant pressure; a pressure compensation vessel fluidily connected to the first and second gear boxes and configured to allow pressure compensation in the gear boxes, the vessel having a lubricant side and a gas side, the lubricant side and gas side separated by a resilient separation element and the gas side being exposed to ambient pressure.