excavator

Abstract

The invention relates to an excavator. In order to solve the problems that climbing is limited and the control operation is not convenient caused by that an upper part mechanism of a conventional excavator is oblique along with a lower part mechanism of the conventional excavator, the invention provides an excavator. The excavator comprises the lower part mechanism and the upper part mechanism, wherein the lower part mechanism comprises a middle framework, a left walking frame, a right walking frame and a pivoting support; the left walking frame is fixed to the left side of the middle framework, and the right walking frame is fixed to the right side of the middle framework; at least two rows of hydraulic oil cylinders are arranged at the top of the middle framework; each cylinder barrel of all the hydraulic oil cylinders are fixedly connected with the middle framework; the top of each hydraulic oil cylinder is hinged to a hinging seat; the hinging seat at the top of a piston rod of each of only one row of the hydraulic oil cylinders is a fixed hinging seat, and the hinging seat at the top of the piston rod of each of the other hydraulic oil cylinders is a movable hinging seat; the fixed hinging seats are fixedly connected with the pivoting support; and the movable hinging seats are in slip connection with a guiding device on the pivoting support. According to the excavator disclosed by the invention, the walking performance of the excavator in hillside fields is improved, so that the climbing capacity and the adaptability of the excavator are higher.

Description

technical field [0001] The present invention relates to an engineering operation machine, more specifically, to an excavator. Background technique [0002] As a fast and efficient construction machine, the hydraulic excavator is a main type of construction machinery and one of the main mechanical equipment in earthwork construction projects. It is known as the "king of construction machinery" in the industry. It is widely used in Mechanized construction in industries such as industrial and civil construction, transportation, water conservancy and electric power engineering, farmland transformation, mining and modern military engineering. [0003] The existing excavator structure includes a lower mechanism and an upper mechanism. The lower mechanism of the excavator includes a left and right walking frame and a middle frame. The middle frame is rigidly connected with the left and right walking frames. support. The upper mechanism rotates in the circumferential direction on ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an excavator that can adjust the inclination angle between the upper mechanism and the horizontal plane in view of the problems that the upper mechanism of the existing excavator is tilted with the lower mechanism, resulting in limited climbing and inconvenient operation.

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