US 11,773,903 B2Granted

Linear guideway with lubricating structure

AssigneeHiwin Technologies Corp.

InventorJian-Ting Lin

Life of this patent

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Abstract

A linear guideway includes a rail, a sliding block with two foot members, a circulating member with two receiving chambers, two sets of balls and two lubricating plates. The receiving chambers of the circulating member receive the foot members of the sliding block respectively, so that the rail, each foot member of the sliding block and the circulating member form a circulation channel for one respective set of balls to run. The two lubricating plates are adjacent to the two circulation channels and contact the two sets of balls to provide lubrication to the balls. In this way, the linear guideway conceals two lubricating plates in the sliding block, which can maintain the length of the sliding block without affecting the stroke, and ensure that the running path does not produce a step difference, so that the smooth running of the ball can be kept consistent.

Claims8

Dependent claims

A linear guideway with lubricating structure, comprising:

a rail;
a sliding block slidably installed on said rail, said sliding block comprising two foot members oppositely located on a bottom surface thereof, said foot members being located on two opposite sides of said rail;
a circulating member slidably set on said rail and connected to said sliding block, so that said circulating member, said rail and each said foot member of said sliding block respectively form a respective circulation channel;
two sets of balls, each set of said balls being set in one respective said circulation channel;
and
two lubricating plates respectively set adjacent to one respective said circulation channel and respectively contacting one respective said set of balls;
wherein said lubricating plates selectively contact a top or a bottom of said balls;
wherein said circulating member comprises positioning holes;
each said lubricating plate comprises a positioning post plugged in one respective said positioning hole of said circulating member.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/550,207Filed 14 Dec 2021
Published: US 2023/0184290 A115 Jun 2023
Granted: 3 Oct 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F16C 29/0607
Of the load bearing section: of parts or members for retaining the rolling elements, i.e. members to prevent the rolling elements from falling out…
F16C 29/0611
Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly: of the return passages, i.e. the passages…
F16C 29/0657
With balls: with two rows of balls, one on each side of the rail
F16C 29/088
Fixed to the carriage or bearing body movable along the guide rail or track: seals extending in the longitudinal direction of the carriage or…