JP2016008494A5

JP2016008494A5 -

Info

Publication number: JP2016008494A5
Application number: JP2014131792A
Authority: JP
Filing date: 2014-06-26
Publication date: 2016-10-27
Anticipated expiration: 2034-06-26

Description

上記の課題を解決するために、請求項１の発明は、下部走行体と、この下部走行体の上方に旋回可能に配置されて、駆動源となる電動機を備えた上部旋回体とを有する電動式作業機械において、前記上部旋回体と前記下部走行体との間に設けられ前記下部走行体側から供給された電源を上部旋回体側に導く集電装置と、電源ケーブルリール装置によって一定の巻取力が付与され外部電源に接続されて前記下部走行体側に電源を供給する電源側ケーブルを支持し、前記下部走行体の側部に設けられたケーブル支持装置とを備え、前記ケーブル支持装置は、その先端部に前記電源側ケーブルを支持するケーブル支持部を有し、前記ケーブル支持部は前記上部旋回体の旋回半径よりも外側に位置するように設けられおり、前記ケーブル支持部は、円弧面を有し前記電源側ケーブルを案内するケーブル案内面と、前記ケーブル案内面を両側から挟むように設けられた一対のガイド部を備えており、前記下部走行体の側方からみて、扇状の形状を成していることを特徴とする。 In order to solve the above problems, the invention of 請 Motomeko 1 has a lower traveling body, it is pivotably arranged above the undercarriage and an upper slewing body having an electric motor as a drive source In the electric work machine, a constant winding is provided by a power collecting device provided between the upper swinging body and the lower traveling body for guiding the power supplied from the lower traveling body side to the upper swinging body side, and a power cable reel device. force power to support the power source side cable supplied before Symbol lower traveling body side are connected to an external power source is applied, and a cable support device provided on the side of the lower traveling body, the cable support system is And a cable support portion for supporting the power supply side cable at the tip thereof, the cable support portion is provided so as to be located outside the turning radius of the upper turning body, and the cable support portion is a circular shape. A cable guide surface for guiding the power supply side cable and a pair of guide portions provided so as to sandwich the cable guide surface from both sides, as viewed from the side of the lower traveling body, It is characterized by having a shape .

また、請求項２の発明は、前記ケーブル支持装置が、前記下部走行体に対して上方に仰動可能に設けられた仰動アームを有しており、前記ケーブル支持部は、前記仰動アームの先端部に設けられたことを特徴とする。 Further, the inventions of claim 2, wherein the cable support device has a Osshado arm provided to be Osshado upwardly relative to the lower traveling body, said cable supporting portions, the Osshado characterized in that provided at the distal end of the arm.

本発明の電動式作業機械の一実施形態を構成する油圧ショベルの側面図である。 1 is a side view of a hydraulic excavator constituting an embodiment of an electric work machine of the present invention. 図１の正面図である。It is a front view of FIG. 本実施形態に備えられた集電装置の構造を示す要部拡大図である。It is a principal part enlarged view which shows the structure of the current collector with which this embodiment was equipped . 作業状態におけるケーブル支持装置の状態を説明する状態説明図である。It is a state explanatory drawing explaining the state of the cable support apparatus in a working state.

以下、本発明に係る電動式作業機械について、図面を用いて説明する。図１は、本発明の電動式作業機械の一実施形態を構成する油圧ショベルの側面図である。本実施形態では、電動式作業機械として油圧ショベル１００を取り上げているが、電動式作業機械は油圧ショベル１００に限るものではなく、油圧クレーン等の電気駆動式の作業機械にも適用できる。 Hereinafter, an electric work machine according to the present invention will be described with reference to the drawings. FIG. 1 is a side view of a hydraulic excavator constituting an embodiment of an electric work machine of the present invention . Applied in the present embodiment, addresses the hydraulic shovel 100 as a electric work machinery, electric work machinery is not limited to the hydraulic shovel 100, also working machine electrically driven, such as a hydraulic crane it can.

下側給電配線３２は、集電装置３０部からトラックフレーム３のセンタフレーム４およびサイドフレーム５と履帯１０との間の空間を経てサイドフレーム５の外側面に設けられたケーブル支持装置６０の上面に設けられた接続部７のコネクタに延び、電源側ケーブル１を介して外部電源に接続される。 The lower power supply wiring 32 is an upper surface of the cable support device 60 provided on the outer surface of the side frame 5 through the space between the current collecting device 30 and the center frame 4 and the side frame 5 of the track frame 3 and the crawler belt 10. It extends to the connector of the connecting portion 7 provided in the cable and is connected to the external power supply via the power supply side cable 1.

また、図４のようにフロント２１により油圧ショベル１００をジャッキアップしてケーブル支持装置６０が接地したとしても、ケーブル支持装置６０が下部走行体２に対して上方に移動するため、ケーブル支持装置６０に過度の力が作用することがなく、損傷を防止することができる。その際、ケーブル支持部６４は上部旋回体後端の旋回半径よりも外側（カウンタウエイト１７の外側）に位置するから、カウンタウエイト１７に接触することがなく損傷を防止できる。 Further, even when the excavator 100 is jacked up by the front 21 and the cable support device 60 is grounded as shown in FIG. 4, the cable support device 60 moves upward with respect to the lower traveling body 2. An excessive force does not act on the film, and damage can be prevented. At that time, since the cable support portion 64 is located outside the turning radius of the rear end of the upper turning body (outside the counterweight 17), the cable support portion 64 can be prevented from being damaged without contacting the counterweight 17.

また、作業を終了し、油圧ショベル１００を輸送する場合には、電源側ケーブル１を接続部７から切り離した後、揺動アーム６２をサイドフレーム５の側面に沿うように左右いずれかの方向に揺動させることで、ケーブル支持装置６０の突出幅を小さくした格納状態として輸送することができる。 When the work is finished and the excavator 100 is transported, the power cable 1 is disconnected from the connection portion 7 and the swing arm 62 is moved in either the left or right direction along the side surface of the side frame 5. By swinging, the cable support device 60 can be transported in a retracted state in which the protruding width of the cable support device 60 is reduced.

１；電源側ケーブル
２；下部走行体
３；トラックフレーム
５、６；サイドフレーム
１５；上部旋回体
２１；フロント
３０；集電装置
３２；下側給電配線
６０；ケーブル支持装置
６１；ブラケット
６２；揺動アーム
６３；仰動アーム
６４；ケーブル支持部
６４ａ；ガイド部
６４ｂ；ケーブル案内部
７０；電源ケーブルリール装置
１００；油圧ショベル（電動式作業機械） DESCRIPTION OF SYMBOLS 1; Power supply side cable 2; Lower traveling body 3; Track frame 5, 6; Side frame 15; Upper turning body 21; Front 30; Current collector 32; Lower power supply wiring 60; Cable support device 61; Moving arm 63; Elevating arm 64; Cable support portion 64a; Guide portion 64b; Cable guide portion 70; Power cable reel device
100: hydraulic excavator (electric work machine)

Claims

In an electric working machine having a lower traveling body and an upper swinging body provided with an electric motor serving as a drive source, arranged so as to be capable of swiveling above the lower traveling body,
A current collector for guiding the upper rotating body side of the power supplied from the lower traveling body side is provided between the lower traveling body and the upper rotating body,
Power cable reel device by supporting the power source side cable supplies power before Symbol lower traveling body side are connected to an external power source is imparted a certain retracting force, cable support device provided on the side of the lower traveling body It equipped with a door,
The cable support device has a cable support portion that supports the power supply side cable at a tip portion thereof, and the cable support portion is provided so as to be positioned outside a turning radius of the upper turning body,
The cable support portion includes a cable guide surface that has an arc surface and guides the power supply side cable, and a pair of guide portions that are provided so as to sandwich the cable guide surface from both sides. An electric work machine having a fan-like shape when viewed from the side .

The cable support device includes an elevating arm provided to be able to elevate upward with respect to the lower traveling body, and the cable support portion is provided at a distal end portion of the elevating arm. The electric work machine according to claim 1.