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Bonnet seal structure of swiveling work machine

A technology for working machines and hoods, which is applied to the sealing of engines, earthmoving machines/shovels, mechanical equipment, etc., and can solve the problems of sealing parts fixing, snow and soil residues, etc.

Active Publication Date: 2010-06-16
KUBOTA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]Therefore, in the prior art, snow and soil remained on the sealing member between the upper end of the fixed cover and the upper end of the open-close cover. The problem that the periphery of the sealing part is fixed due to freezing

Method used

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  • Bonnet seal structure of swiveling work machine
  • Bonnet seal structure of swiveling work machine
  • Bonnet seal structure of swiveling work machine

Examples

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Embodiment Construction

[0027] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0028] Such as Figure 1 to Figure 4 As shown, a backhoe 1 as an example of a rotary working machine includes a traveling device having a pair of left and right crawler traveling bodies, and a turntable 2 . A turntable 2 is mounted on an upper portion of the traveling device so as to be rotatable about a vertical rotation axis via a rotation bearing.

[0029] The turntable 2 has a plate-shaped rotating base 3 and vertical walls 5 that partition the rotating base 3 from front to back. The vertical wall 5 is erected on the front and rear intermediate portions of the rotating base plate 3 . On the rotating base 3 , a pair of left and right vertical ribs 6 and 7 are provided so as to widen from the front side of the rotating base 3 toward the rear. An attachment bracket 9 is attached to the front side of the pair of left and right longitudinal ribs 6 , 7 so as to protrud...

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PUM

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Abstract

A bonnet sealing structure for a swiveling work machine includes: a bonnet (36) configured to cover an engine (14) provided on a swivel stage (2) including: a fixed cover (22), and an open-close cover (24) which is swingably supported about a vertical shaft (77) and is openable and closable relative to the fixed cover (22); and a sealing member (84) through which an upper end portion of the open-close cover (24) is brought into contact with an upper end portion of the fixed cover (22) when the open-close cover (24) is closed. The bonnet sealing structure further includes a cover piece (81) protruding from one of an upper wall (65a) of the open-close cover (24) and an upper wall (33) of the fixed cover (22), and when the open-close cover (24) is closed, the cover piece (81) is located above the sealing member (84) and reaches a point above the other of the upper wall (33) of the fixed cover (22) and the upper wall (65a) of the open-close cover (21).

Description

technical field [0001] The present invention relates to a hood sealing structure of a rotary working machine such as a backhoe. Background technique [0002] Conventional rotary working machines such as backhoes have a structure in which an engine is mounted on the rear of a rotary table and a hood covering the engine is provided. The left side cover, the rear cover covering the rear of the engine, etc. are constructed. The front cover and the left side cover are fixed on the support frame that straddles the engine, etc., so that the rear cover can be opened and closed freely relative to the front cover, and the rear cover is moved in the left and right direction. One end side serves as a fulcrum, and is openably and closably supported on a support frame or the like around a vertical axis (for example, JP-A-2005-280485). [0003] In the hood sealing structure of this conventional rotary operation, for example, the hood sealing structure disclosed in Japanese Patent Applicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/00
CPCE02F3/325E02F9/0891B62D25/10E02F9/08F16J15/06
Inventor 藤原纯一汤川胜彦
Owner KUBOTA LTD