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Working machine

一种作业机械、作业装置的技术，应用在机械驱动的挖掘机/疏浚机、移土机/挖土机、上部结构分总成等方向，能够解决发动机室高度尺寸增加等问题，达到舒适操作性、提高作业性、减小压迫感的效果

Inactive Publication Date: 2015-05-13
HITACHI CONSTRUCTION MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially recently, due to exhaust restrictions, it is necessary to install an exhaust treatment device or a large muffler, but as such equipment mounted in the engine room is increased or the size is increased, the height of the engine room tends to increase further

Method used

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Embodiment Construction

[0034] Next, embodiments of the working machine of the present invention will be described based on the drawings.

[0035] figure 1 It is a side view showing a hydraulic excavator constituting the first embodiment of the working machine of the present invention, figure 2 yes means figure 1 A perspective view of a revolving body included in the hydraulic excavator shown above, image 3 yes figure 2 It is an enlarged side sectional view of main parts of the rotary body shown.

[0036] The working machine according to the first embodiment of the present invention is constituted by, for example, a hydraulic excavator. Such as figure 1 As shown, the hydraulic excavator includes a traveling body 1 , a revolving body 2 disposed on the traveling body 1 , and a work implement 3 mounted on the revolving body 2 so as to be rotatable in an up-down direction. The working device 3 includes: a boom 4 mounted on the revolving body 2 so as to be rotatable in the vertical direction; a b...

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Abstract

[Problem] To enable reduction of such a feeling of oppression that an operator sitting on an operator's seat is oppressed by an engine room and relaxation of restriction on a rearward visual field of the operator sitting on the operator's seat. [Solution] The invention provides a hydraulic excavator including: a revolving upperstructure 2; a working device 34 attached to the revolving upperstructure 2; an operator's cab 7 which has a rear window 16 and which is disposed in a front position of the revolving upperstructure 2; and an engine room 9 which is disposed in a rear position adjacent to the operator's cab 7 and which has a ceiling part made of a cover member 17; wherein: a part of the cover member 17 located near the operator's cab 7 is made of a face shape part, i.e. an inclined surface part 18, having a shape whose height gradually increases toward the rear of a vehicle body with the vicinity of a lower end part 16a of the rear window 16 as a start point 18a during a predetermined distance immediately after the operator's cab 7. For example, the height of the start point 18a of the inclined surface part 18 is set to be equal to or lower than the height of the lower end part 16a of the rear window 16.

Description

technical field [0001] The present invention relates to working machines such as hydraulic excavators in which a cab having a rear window and an engine room adjacent to the cab are arranged on a revolving body. Background technique [0002] In working machines equipped with a revolving body, such as hydraulic excavators, due to the working environment, etc., in order to keep the radius of gyration from protruding outward from the vehicle width of the running body as much as possible, the width dimension of the revolving body and the parts arranged at the rear of the revolving body The rearward projection of the counterweight is limited. Therefore, when it is desired to increase the ventilation area of ​​the heat exchanger accommodated in the engine room provided on the revolving structure, etc., the height dimension of the engine room has to be set to be large. Especially recently, it is necessary to install an exhaust gas treatment device or a large muffler due to the rest...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F9/00
CPCB62D25/10B62D33/0617E02F9/0833E02F9/0866E02F9/0891E02F9/163E02F9/00E02F9/08E02F3/30E02F9/16
Inventor 清水刚中村正雄熊谷博
Owner HITACHI CONSTRUCTION MACHINERY CO LTD
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