US 9,518,374 B2Granted

Shovel and swiveling speed reducer

AssigneeSumitomo Heavy Industries, Ltd.

InventorsKentaro Furusho, Kazunori Hiranuma, Takeshi Okada, Yoshitaka Shizu

Life of this patent

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Abstract

Provided is a shovel including a swiveling motor, and a swiveling speed reducer that reduces the rotational speed of an output shaft of the swiveling motor. The swiveling speed reducer includes a first gear mechanism; a first gear case that houses the first gear mechanism; a first oil check pipe that is disposed in the first gear case; a first communication portion that allows an inside of the first gear case and the first oil check pipe to communicate with each other; and a second communication portion that connects a position of the first gear case higher than a position where the first communication portion is connected, and a high position of the first oil check pipe.

Claims8

Dependent claims

A shovel comprising a swiveling motor, and a swiveling speed reducer that reduces the rotational speed of an output shaft of the swiveling motor, wherein the swiveling speed reducer includes:

a first gear mechanism;
a first gear case configured to house the first gear mechanism;
a first oil check pipe on the first gear case;
a first communication portion configured to communicatively connect the first oil check pipe and lower space inside of the first gear case, the first communication portion connected to a first location of the first gear case lower than the first gear mechanism;
and
a second communication portion configured to communicatively connect the first oil check pipe and upper space inside of the first gear case, the second communication port connected to the first gear case at a second location higher than the first location, the upper space located higher than the first gear mechanism, and
wherein the oil check pipe, the first communication portion and the second communication portion constitute a circulation path circulating oil inside the first gear case.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/617,483Filed 9 Feb 2015
Priority: JP 2014-02696414 Feb 2014
Published: US 2015/0233091 A120 Aug 2015
Granted: 13 Dec 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

E02F 9/126
Turntables, i.e. structure rotatable about 360°: lubrication systems
E02F 9/202
Drives; Control devices: mechanical transmission, e.g. clutches, gears
E02F 9/2095
Electric or electro-mechanical or mechanical control devices of vehicle sub-units: control of electric, electro-mechanical or mechanical equipment…
F16H 57/0421
Guidance of lubricant: on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like

Family

US 2015/0233091 A1Pre-grant publication · published 20 Aug 2015
US 9,518,374 B2This patent

From the US filing history. Foreign family members aren’t listed.

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