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Excavator

A technology for excavators and reducers, which is applied to earth movers/shovels, mechanical equipment, transmission parts, etc., can solve problems such as damage to bearing components, and achieve the effect of preventing damage

Active Publication Date: 2017-10-24
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the bearing parts may be damaged due to the force applied by the movement.

Method used

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Embodiment Construction

[0020] Next, non-limiting exemplary embodiments of the present invention will be described with reference to the drawings.

[0021] In addition, in the description of all drawings, the same or corresponding reference signs are attached|subjected to the same or corresponding components or components, and repeated description is abbreviate|omitted. In addition, unless otherwise specified, the drawings are not intended to show relative comparisons between components or modules. Therefore, specific dimensions can be determined by those skilled in the art with reference to the following non-limiting embodiments.

[0022] Furthermore, the embodiments described below are not intended to limit the invention but are examples, and all the features described in the embodiments and combinations thereof are not necessarily essential features of the invention.

[0023] figure 1 It is a shovel showing one embodiment of the present invention.

[0024] On the upper portion of the undercarri...

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PUM

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Abstract

The present invention provides a shovel capable of restricting movement of a wheel frame member in a thrust direction. The excavator of the present invention has: a speed reducer, which is formed by stacking a plurality of gear reducers in the direction of the rotation axis of the upper revolving body. The housing of the gear reducer is provided with a sun gear, a planetary gear, an internal gear and a support The carrier member of the planetary gear; and the movement restricting part, the sun gear of a gear reducer provided in a plurality of stacked gear reducers is decelerated from the other gear stacked so as to oppose the sun gear The sun gear of the one gear reducer is restricted from moving toward the other gear reducer, and the movement restricting part is provided in the housing.

Description

technical field [0001] This application claims priority based on Japanese Patent Application No. 2014-064651 filed on March 26, 2014. The entire contents of this Japanese application are incorporated herein by reference. [0002] The invention relates to an excavator with a rotary reducer. Background technique [0003] The excavator is provided with a slewing drive device for slewing and driving the upper slewing body. In many cases, the slewing drive device decelerates power from a power source (hydraulic motor, electric motor, etc.) through a slewing reducer (hereinafter referred to simply as a reducer), and turns the upper slewing body with increased output torque. [0004] As the speed reducer, from the viewpoint of compactness and ease of changing the reduction ratio, a planetary gear speed reducer having a sun gear as an input element and a carrier of a planetary gear as an output element is often used. In addition, in order to obtain a predetermined reduction ratio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/36E02F9/12
CPCF16H57/08E02F9/123E02F9/128E02F9/2095F16H1/46F16H2057/085
Inventor 古庄健太郎平沼一则冈田健志志津庆刚
Owner SUMITOMO HEAVY IND LTD