Dumper frame and dumper

Abstract

A dumper frame comprises a right longitudinal beam and a left longitudinal beam which are symmetrically arranged, and a bumper assembly, a front lower gantry beam, a second cross beam, a third cross beam, a middle rear cross beam assembly and a tail cross beam which are sequentially connected between the left longitudinal beam and the right longitudinal beam from front to back; the sizes of the box-shaped sections of the left longitudinal beam and the right longitudinal beam are kept unchanged from front to back; and at least one surface of the second cross beam, the third cross beam, the middle rear cross beam assembly and the tail cross beam overlaps the left longitudinal beam and the right longitudinal beam. According to the dumper frame, the torsional rigidity and strength are greatlyimproved, complex and changeable severe working conditions of a mine can be resisted, and the design service life is long. The invention further relates to a dump truck with the dump truck frame.

Description

technical field [0001] The invention relates to the technical field of dump trucks, in particular to a dump truck frame and a dump truck with the dump truck frame. Background technique [0002] Mining dump truck is a professional vehicle used for ore or earthwork transportation in open-pit mining and large-scale earthwork construction. It has the characteristics of heavy load and high work efficiency. At present, mining dump trucks are developing in the direction of large-scale and gigantic. The frame of the mining dump truck is a super-large structural part, which is the base for carrying, supporting and installing the whole vehicle. It is the most important structural component of the mining dump truck and will accompany the entire life cycle of the dump truck. [0003] During the use of mining dump trucks, the frame bears the effects of gravity, impact load, torsional load, bending load and alternating load at the same time, so the frame is required to have good strength...

AI Technical Summary

Problems solved by technology

[0004] 1. The existing frame longitudinal beam generally adopts a groove-shaped cross-section, and the beam and longitudinal beam are riveted or welded. The overall torsional stiffness and strength of the frame are low and the service life is short

[0005] 2. Although there is an integral box-section welded frame, the front suspension adopts (McPherson type) independent suspension. The independent suspension swing arm and tie rod are under severe stress conditions, and the front suspension structural parts are prone to breakage, etc. Failure phenomenon, not suitable for complex roads in mines

And independent suspension is used, the structure is complex, the cost is high, and the maintenance is inconvenient

[0006] 3. In order to arrange the lower swing arm of the MacPherson suspension, the longitudinal beam of the frame is designed to be low at the front and high at the rear. high

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