To easily prevent the excessive supply of the lubricating oil in the case of a large number of revolution in a device, in which the lubricating oil is supplied to each sliding part through an oil passage provided in a rotary shaft, by inserting an excessive supply preventing device for reducing the supply quantity of the lubricating oil at the time of high-rotational speed of a rotary shaft into an oil passage.
A rotary shaft 36 is passed through and connected to the center of a rotor 35 of an electric drive element 32, and a pin part 41 is formed at an end of the rotary shaft 36 passing through a support frame 37, and an oscillating scroll 42 is continuously provided to the pin part 41. The other end of the rotary shaft 36 is provided with a differential pressure type oil supply part 38, and the lubricating oil (b) is sucked from an oil lead-in tube 39 of an oil supply part 38 by the differential pressure, and fed to each sliding part including a bearing part 37A through an oil passage 40 provided in the rotary shaft 36. In this case, a twist plate 55 provided with a reverse twist in relation to the rotating direction of the rotary shaft 36 is inserted into the oil passage 40 so as to function as an excessive supply preventing device. With this structure, in the case where the number of revolutions is increased, excessive supply of the lubricating oil is prevented.
MATSUMOTO KENZO
NISHIKAWA TAKEHIRO
MITSUNAGA TOSHIHIKO
SUGIMOTO KAZUYOSHI
SATO KAZUYA
FUJIWARA KAZUAKI
| JPS62265334A | 1987-11-18 | |||
| JPS62184042A | 1987-08-12 | |||
| JPS61228047A | 1986-10-11 |