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Electric Rotary Working Machines

A kind of working machinery and rotary technology, which is applied in the direction of cranes, infrastructure engineering, earth movers/shovels, etc., can solve problems such as easy slippage, weight of terminal attachments, and crawler slippage, so as to prevent slippage Effect

Active Publication Date: 2017-01-11
SUMITOMO CONSTRUCTION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, when operating a working machine on an iron plate, the track slips due to the decrease in friction between the track and the iron plate
In particular, when installing lifting magnets, grabs, etc., since the terminal attachment becomes heavier, the centrifugal force becomes larger and it becomes easy to slip

Method used

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  • Electric Rotary Working Machines
  • Electric Rotary Working Machines
  • Electric Rotary Working Machines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Next, embodiments will be described with reference to the drawings.

[0021] figure 1 It is a side view of an example of an electric rotary machine tool to which the present invention is applied.

[0022] A crawler belt 1a is provided as a running mechanism on the undercarriage 1 of the machine tool. The working machine travels on the ground by driving the crawler belt 1a. An upper revolving body 3 is mounted on the undercarriage 1 via a revolving mechanism 2 . As will be described later, the turning mechanism 2 is driven by an electric motor, and turns the upper turning body 3 .

[0023] A boom 4 is mounted on the upper revolving body 3 . A stick 5 is mounted on the front end of the boom 4, and a bucket 6 is mounted on the front end of the stick 5 as a terminal attachment. Boom 4 , stick 5 and bucket 6 are hydraulically driven by boom cylinder 7 , stick cylinder 8 and bucket cylinder 9 respectively. A cab 10 is provided on the upper revolving structure 3, and a p...

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PUM

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Abstract

An object of the present invention is to provide an electric rotary machine tool in which a lower traveling body does not move relative to the ground even when the upper revolving body is turned when the frictional force with the ground is reduced. The electric rotary working machine of the present invention comprises: an upper rotary body (3), which is mounted so as to be able to rotate relative to the lower traveling body (1); a rotary mechanism (2), which supports the upper rotary body so as to be able to rotate relative to the lower traveling body; An electric motor (21) serves as a drive source of the slewing mechanism to drive the upper revolving body relative to the lower running body; and a swivel control unit (32) generates a drive command for driving the motor. The swing control unit has an anti-slip mode in which the swing operation of the upper swing body is slower than in the normal swing mode with respect to the amount of operation from the operating device.

Description

technical field [0001] This application claims priority based on Japanese Patent Application No. 2013-036296 filed on February 26, 2013. The entire content of the application is incorporated in this specification by reference. [0002] The present invention relates to an electric rotary machine tool using an electric motor as a drive source of an upper rotary body. Background technique [0003] Generally, a working machine has a lower traveling body having a traveling mechanism for traveling, and an upper turning body mounted on the lower traveling body. A machine tool that uses an electric motor as a drive source of a slewing mechanism to slew-drive an upper slewing body is called an "electric slewing machine tool" (for example, refer to Patent Document 1). [0004] As the running mechanism of the lower running body of the working machine, crawler belts are often used. The crawler is in contact with the ground, and the undercarriage is supported on the ground via the cra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F3/358
CPCE02F9/2075B66C23/84E02D17/13E02F9/2095E02F9/2058E02F9/123E02F9/20
Inventor 白谷龙二佐野公则黑泽亮太
Owner SUMITOMO CONSTRUCTION MACHINERY