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Shovel

A technology for excavators and working machines, which is applied in the directions of earthmovers/shovels, mechanical equipment, mechanically driven excavators/dredgers, etc. Effect

Pending Publication Date: 2018-09-28
SUMITOMO CONSTRUCTION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So there is a mismatch between the chosen mode of work and the workload

Method used

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Experimental program
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Embodiment Construction

[0031] figure 1 It is a side view showing the hydraulic shovel according to the embodiment of the present invention.

[0032] The hydraulic excavator rotatably mounts the upper slewing body 3 on the crawler-type lower traveling body 1 via the slewing mechanism 2.

[0033] A boom 4 is mounted on the upper revolving body 3. An arm 5 is installed at the front end of the boom 4, and a bucket 6 as a terminal attachment is installed at the front end of the arm 5. The boom 4, the arm 5, and the bucket 6 constitute an accessory device as a front working machine. In addition, the boom 4, the arm 5, and the bucket 6 are hydraulically driven by the boom cylinder 7, the arm cylinder 8, and the bucket cylinder 9 as hydraulic actuators, respectively. The upper slewing body 3 is provided with a cab 10 and is equipped with a power source such as an engine. here, figure 1 The bucket 6 is shown as a terminal attachment. However, the bucket 6 can be replaced by a lifting magnet, a crusher, a fork,...

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PUM

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Abstract

The present invention has: a lower traveling body (1); an upper turning body (3) mounted so as to turn with respect to the lower traveling body (1); a hydraulic pump (12L, 12R) connected to an engine(11); a front work machine that includes an end attachment (6), an arm (5), and a boom (4) driven by hydraulic oil from the hydraulic pump (12L, 12R); a front work machine attitude detection unit (S1,S2, S3) that detect the attitude of the front work machine; and a control unit (30) that controls, on the basis of a value detected by the front work machine attitude detection unit (S1, S2, S3), thehorse power of the hydraulic pump (12L, 12R) in accordance with the attitude of the front work machine in a work area (N).

Description

Technical field [0001] The invention relates to an excavator. Background technique [0002] In the past, construction machinery such as hydraulic excavators had the function of switching their output working mode selection to suit various environments or usage methods. As the selected operating mode, there are, for example, a speed / power emphasis mode, a fuel consumption priority mode, and a mode for micro operation. [0003] A structure is disclosed in which if the operator operates the throttle valve according to the situation and selects an arbitrary operation mode from a plurality of operation modes, the constant rotation speed corresponding to the selected operation mode is determined (for example, refer to Patent Document 1). [0004] Previous technical literature [0005] Patent literature [0006] Patent Document 1: Japanese Patent Application Publication No. 2004-324511 Summary of the invention [0007] The technical problem to be solved by the invention [0008] However, in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/20F02D29/00F02D29/04
CPCF02D29/00F02D29/04E02F9/2221E02F9/265E02F9/2041E02F9/2235E02F9/2242E02F9/2292E02F9/2296E02F3/435E02F9/2037E02F9/20E02F3/32E02F3/425
Inventor 塚本浩之
Owner SUMITOMO CONSTRUCTION MACHINERY