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Power supplying system for electric excavator

A technology of electric excavator and power supply system, which is applied in the direction of earth mover/shovel, construction, etc., can solve the problems of inconvenient operation, and achieve the effect of simple connection and disassembly, convenient operation, connection and disassembly and quick effect

Active Publication Date: 2012-05-16
HITACHI CONSTR MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the technology of Patent Document 1, since the joint 37 and the terminal 38 on the side of the running body are connected inside the running body, when the power supply assembly 21 is disassembled from the running body during transportation, the operator will It is necessary to enter the inner side of the walking body to separate the joint 37 from the terminal 38, resulting in inconvenience in operation

Method used

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  • Power supplying system for electric excavator
  • Power supplying system for electric excavator
  • Power supplying system for electric excavator

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Embodiment Construction

[0035] Below, refer to Figure 1 to Figure 5 A power supply system for an electric excavator according to an embodiment of the present invention will be described.

[0036] Such as Figure 1 ~ Figure 3 As shown, the electric excavator mainly has an upper revolving body 1 and a lower traveling body 2 . On the rear part of the undercarriage 2, the cable reel assembly for electric power feeding is connected by the pin 8 etc. and arrange|positioned.

[0037] (Structure of cable reel assembly for power supply)

[0038] Such as figure 2 , image 3 As shown, the cable reel assembly for power supply includes an assembly frame 7, a cable reel 4 for winding a power cable 11, and a cable for guiding the power cable 11 so that it is neatly wound on the cable reel 4. A guide 5 , a cable reel driving device 3 that rotationally drives the cable reel 4 , and a controller 6 that controls the cable reel driving device 3 . Neatly winding the power cables 11 means that the power cables wou...

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Abstract

The invention provides a power supplying system for an electric excavator. A travelling body (2) in the power supplying system is provided with a mounting bracket (13) which is used for the mounting of a power supplying cable winding shaft assembling body; the mounting bracket (13) protrudes towards the outer side further than a side rack (12a) of the travelling body (2); the end part of the outer side of the mounting bracket (13) is provided with a mounting part which is used for the mounting of a power supplying cable winding shaft assembling body; the mounting part comprises a connector (10); the power supplying cable winding shaft assembling body comprises an assembling body bracket (7), a cable winding shaft (4) and a cable guiding device (5); and the assembling body bracket (7) is connected with the mounting bracket (13) by a pin (8).

Description

technical field [0001] The invention relates to a power supply system of an electric excavator. Background technique [0002] In some electric excavators, a power cable connected to an external power supply is arranged at the rear, and one end of the power cable is connected to the external power supply, and the other end is connected to the electric excavator side. In order to facilitate transportation, the power supply assembly equipped with the cable reel, cable guide, and cables can be disassembled from the lower running body. In this case, it is necessary to design the connection structure between the power supply assembly and the lower running body, and the connection structure between the power supply cable on the assembly side and the power cable on the running body side. [0003] Such as Figure 6 As shown, a kind of such power supply system is described in Patent Document 1. The power supply assembly 21 is connected to the bracket 27 on the side of the walking bod...

Claims

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Application Information

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IPC IPC(8): E02F9/20
Inventor 高春光
Owner HITACHI CONSTR MASCH CO LTD
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