The present application provides a supporting wheel shaft, a supporting wheel and a work machine. The supporting wheel shaft including an oil inlet, a first oil outlet, a second oil outlet and a lubricating oil passage; the oil inlet is provided near a middle portion of the supporting wheel shaft and used to communicate with a first oil storage chamber on a wheel body of a supporting wheel; the first oil outlet is provided close to a first end of the supporting wheel shaft and used to extend to a first floating oil seal on the supporting wheel; the second oil outlet is provided close to a second end of the supporting wheel shaft and used to extend to a second floating oil seal on the supporting wheel; the lubricating oil passage is provided inside the supporting wheel shaft and extends from the first end of the supporting wheel shaft to the second end thereof. The lubricating oil passage communicates with the oil inlet, the first oil outlet and the second oil outlet, respectively. The present application improves the lubricating environment of the floating oil seal of the supporting wheel, prevents the excessive wear of the floating oil seal and the bushing of the supporting wheel due to a decrease of the amount of lubricating oil, and ensures the service life of the supporting wheel.
SUPPORTING WHEEL SHAFT, SUPPORTING WHEEL AND WORK MACHINE
2024-07-04
Patent
Electronic Resource
English