Nozzle assembly of a constant fine lubrication device
AssigneeNippon Seiko Kabushiki Kaisha
InventorsYoshiaki Onose, Yasushi Morita, Teruhiko Abe
Life of this patent
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Abstract
The nozzle assembly of a constant fine lubrication device in which a line extending from a constant fine lubricant supplying unit extends into the oil hole of a nozzle top mounted on a holding member for holding an object to be lubricated so that lubricating oil is injected from the nozzle of the nozzle top to the object to be lubricated.
Claims7
Bearing lubricating apparatus comprising:
- a bearing assembly comprising a bearing including inner and outer coaxial races defining an annular bearing space and rolling elements disposed between said races, and spacer means including an inner annular ring axially juxtaposed with the inner race in end-to-end relation therewith and an outer annular ring axially juxtaposed with the outer race in end-to-end relation therewith, the inner and outer annular rings forming an annular space communicating with the annular bearing space, the outer annular ring having a radial bore;
- a housing having an inner surface on which the outer race and the outer annular ring of the bearing assembly are held, the housing having a radial bore extending perpendicular to a rotational axis of the bearing and aligned with the radial bore of the outer annular ring;
- a nozzle body separate from said housing and said spacer means and having a first portion extending through the radial bore of the housing and a second portion integral with the first portion and extending through the radial bore of the outer annular ring of the bearing assembly, the nozzle body being secured to the housing at the first portion, the nozzle body having an oil hole extending therethrough in the direction of said radial bores, an inlet at one end of the oil hole and an outlet at the other end of the oil hole opened in the annular space of the spacer means and directed toward the annular bearing space;
- and
- an oil supply pipe separate from and secured to the housing, said oil supply pipe extending through the housing and having an end portion inserted in said inlet;
- whereby a very small amount of oil may be fed by a constant fine lubricant supplying unit into the oil supply pipe at predetermined intervals by means of a constant quantity piston and moved along an inner surface of the oil supply pipe by an airstream to the bearing assembly.
Apparatus for lubricating a bearing including inner and outer coaxial races defining an annular bearing space and plural rolling members disposed between the races, in which a constant fine lubricant supplying unit feeds a very small amount of oil into a single continuous seamless supply pipe at predetermined intervals by means of a constant quantity piston, and in which the oil is moved along an inner wall of the supply pipe by an airstream for delivery to the bearing, said apparatus comprising:
- a housing having an inner surface on which the outer race of the bearing is held, and having a radial bore extending perpendicular to a rotational axis of the bearing;
- spacer means including an inner annular ring and an outer annular ring disposed coaxially therewith to form an annular space communicating with the annular bearing space, the inner annular ring being axially juxtaposed with the inner race in end-to-end relation therewith, the outer annular ring being axially juxtaposed with the outer race in end-to-end relation therewith, the outer annular ring being held on the inner surface of the housing and having a radial bore aligned wtih the radial bore of the housing;
- a nozzle body separate from said housing and said spacer means and having a first portion extending through the radial bore of the housing and a second portion integral with the first portion and extending through the radial bore of the outer annular ring, the nozzle body being secured to the housing at the first portion, and having an oil hole extending therethrough in the direction of said radial bores, the oil hole having an inlet into which an end portion of the supply pipe is inserted, the supply pipe being separate from the housing and extending therethrough, and the oil hole having an outlet opened in the annular space of the spacer means and directed to the annular bearing space;
- and
- means for securing the supply pipe to the bushing so as to maintain a predetermined length of the end portion inserted into the inlet of the oil hole.
Dependencies are inferred from the claim text.