Compact electric excavator body arrangement structure

Abstract

The present invention relates to a compact electric excavator body arrangement structure. The structure comprises a first battery arranged on the right side of the rear portion of a cab, a second battery arranged on the right side of an excavator body, a motor arranged behind the excavator body, a third battery arranged above the motor, a hydraulic oil tank arranged in front of the third battery,a radiator arranged behind the motor, a weak current box arranged on the left side of the first battery, a BDU and a BCU which are arranged on the front side of the second battery, and a PDU box and an MCU which are located behind the third battery. The whole excavator height is greatly reduced, and the excavator body is below a cab rear window, so that the rear view is guaranteed; the turning radius of the tail part of the whole excavator is a circular arc with the turning center as the circle center, and compared with a conventional diesel vehicle, a counter weight is omitted, and the circular arc space is fully utilized, so that the radius is extremely small and collision cannot easily occur; the whole excavator is reasonable in arrangement, the gravity center distribution is symmetrical and uniform, and the upper gravity center in each posture falls within a slewing bearing ring; and the maintenance is convenient.

Description

technical field [0001] The invention relates to an electric excavator, in particular to a car body arrangement structure of a compact electric excavator. Background technique [0002] For excavators using lithium battery packs as power sources, due to the large power demand, the required battery packs are large in size and weight, and the balance of the center of gravity of the whole machine must be considered (the center of gravity of the upper part should be as symmetrical as possible from left to right and front to back, and should fall near the center of slewing). The placement and layout requirements are high; because the batteries are arranged in a centralized manner and occupy a large space, common electric excavator products usually arrange the batteries to the rear of the machine. On the one hand, the rear space is large, and on the other hand, the weight can be used as Heavy use is conducive to the balance of the center of gravity of the whole machine, but it often...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: how to achieve compact size, small height and tail turning radius through battery arrangement, the battery is not easy to be bumped, the center of gravity of the whole vehicle is balanced, and it is convenient for maintenance;

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