Hydraulic excavator

摘要

A hydraulic excavator capable of achieving suppression of decrease in weight of a counterweight and appropriate arrangement of an exhaust gas treatment device is provided. First and second exhaust gas treatment devices are disposed in an order of the second exhaust gas treatment device and the first exhaust gas treatment device from a center toward an end in a lateral direction. A rear end of the first exhaust gas treatment device is arranged forward relative to a rear end of the second exhaust gas treatment device. A counterweight has, in its inner peripheral surface, a second surface portion on a central side in the lateral direction in a plan view and a fourth surface portion on an end side. The fourth surface portion protrudes forward relative to the second surface portion, and a step portion is formed between the second surface portion and the fourth surface portion.

主权项

1. A hydraulic excavator, comprising:
a revolving frame; an engine arranged on said revolving frame; first and second exhaust gas treatment devices for treating an exhaust gas from said engine; a counterweight arranged on said revolving frame in a rear of said engine, said first exhaust gas treatment device and said second exhaust gas treatment device being disposed in an order of said second exhaust gas treatment device and said first exhaust gas treatment device from a center toward an end in a lateral direction of said revolving frame such that each longitudinal direction extends along a fore/aft direction of said revolving frame, and a rear end of said first exhaust gas treatment device being arranged forward relative to a rear end of said second exhaust gas treatment device, said counterweight having, in an inner peripheral surface, a step portion such that an end side protrudes forward relative to a central side in the lateral direction of said revolving frame in a plan view; and a bracket supporting said first exhaust gas treatment device and said second exhaust gas treatment device, an edge portion of said bracket along the rear end of said second exhaust gas treatment device protruding toward said counterweight relative to an edge portion of said bracket along the rear end of said first exhaust gas treatment device in a plan view.