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Upper slewing body for use in construction machine

一种工程机械、回转体的技术，应用在载货车的上部结构、上部结构、车辆部件等方向，能够解决破坏、外侧支柱倒塌、驾驶室易变形等问题

Active Publication Date: 2016-02-10
KOBELCO CONSTR MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such lateral loads can damage the joints, potentially causing the outboard struts to collapse, leaving the cab susceptible to deformation

Method used

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  • Upper slewing body for use in construction machine
  • Upper slewing body for use in construction machine
  • Upper slewing body for use in construction machine

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] Embodiments of the present invention will be described with reference to the drawings.

[0023] Before describing the embodiments of the present invention, in order to clarify its features, first Figure 9 and Figure 10 The upper revolving body of the comparative example shown will be described.

[0024] Figure 9 The upper slewing body shown includes: an upper frame 1 , a driver's cab 2 , and multiple anti-vibration supports 4 . The upper frame 1 has a left side platform 3L corresponding to the left side and a right side platform 3R corresponding to the right side. The cab 2 is disposed on one of the left side and the right side. Hereinafter, the "front-rear direction" and "left-right direction" of the upper swing body related to the comparative example and the embodiment described later are all referred to as Figure 9 The cab shown is arranged on the left side of the upper frame ( Figure 9 Middle is the situation above the left platform 3L) as the premise.

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PUM

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Abstract

Provided is an upper slewing body for use in a construction machine. The upper slewing body comprises: an upper frame, a cab including a bottom frame, a plurality of pillars including an outer pillar (15), and an entrance; an antivibration mount; a displacement restrainer restraining a cab displacement in a direction of rising away from the upper frame; and a reinforcing member attached to a lower end of the outer pillar for reinforcing a joint between the lower end and the bottom frame The displacement restrainer includes a penetrating member vertically penetrating the reinforcing member and the bottom frame and secured to the upper frame. The displacement restrainer and the reinforcing member includes respective load transmitting surfaces for transmitting a load to each other above the joint between the bottom frame and the outer pillar when the cab is displaced in the rising direction by a specific amount or more. Therefore, the cab is prevented from excessively floating upward relative to the upper frame and the outer pillar of the cab is prevented from collapsing.

Description

technical field [0001] The present invention relates to an upper revolving body of a construction machine such as an excavator, and more particularly to an upper revolving body having a cab on which an operator sits and an upper frame supporting the cab. Background technique [0002] The background technology of the present invention is described by taking an excavator as an example. [0003] A general excavator includes a crawler-type undercarriage, an upper revolving body mounted on the lower undercarriage freely rotatable, and a working attachment attached to the upper revolving body. The working attachment includes a boom, etc. . The upper slewing body includes: a cab on which a driver sits; and an upper frame supporting the cab; the cab includes: a lower frame constituting a bottom of the cab; . [0004] As the above-mentioned revolving upper body, there is known a revolving upper body in which an anti-vibration mount is provided between the cab and the upper frame. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/08E02F9/16
CPCE02F9/0808E02F9/163B62D33/0604F16F15/10B62D33/0617E02F9/166
Inventor 木下明山本启二川上雄司
Owner KOBELCO CONSTR MASCH CO LTD
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