REAR COVER FOR LUBRICATION PORT OF SPEED CHANGE GEAR EXTENSION

摘要

PURPOSE:To improve lubrication performance by providing a cover at the position covering around a lubrication port on the output shaft in an extension housing of speed change gear thereby promoting dispersion of lubricant while forming an oil sump at the lower section in the housing. CONSTITUTION:An extension housing 1 contains an intermediate shaft 3 receiving drive torque and a clutch sleeve 5 for coupling between output shaft 4 and both shafts 3, 4 and supporting the output shaft 4 rotatably by means of a ball bearing 6 and a rear bush 7. In the extension housing 1, lubricant passed through a lubricant path 8 in said shaft 3 and blown out through an orifice 9a in a plug 9 at the rear end will be stored through a lubrication port 10 in the housing 1. A rear cover 11 is provided on the outercircumference of said port 10 where a flange 11b is provided at one end of tubular body 11a while a partition wall 11c at the other end. Consequently an oil sump 12 is formed between the cover 11 and the housing 1.