Rear-mounted rubber mat assembly

Abstract

The invention discloses a rear-mounted rubber mat assembly. A rubber mat base comprises two half bases, a rubber mat supporting space is formed between the two half bases, each half base comprises a soleplate, an oblique supporting plate and an auxiliary supporting plate, one end of the auxiliary supporting plate is fixed on the soleplate, the other end of the auxiliary supporting plate is fixed on the oblique supporting plate, and a preset angle is formed between the outer wall of the auxiliary supporting plate and the oblique supporting plate; a rubber mat pressure block comprises a pressure block body with an upper installation surface and a rubber mat adhesion surface, supporting ribs are fixed inside the pressure block body, lightening holes are formed in two sides of each supporting rib, and each lightening hole is formed by encircling the inner wall of the pressure block body and the supporting rib; the rubber mat comprises two rubber mat bodies which are fixedly connected with each other, each rubber mat body comprises at least two superimposed bodies as well as a liner plate which is fixed between two adjacent bodies, and two opposite surfaces of the liner plate are respectively fit to the oblique surfaces of the two bodies. The rubber mat base and the rubber mat pressure block in the rear-mounted rubber mat assembly are unlikely to fracture, and the rubber mat is unlikely to fracture.

Description

technical field [0001] The invention relates to the technical field of automobile structures, in particular to a rear suspension rubber pad assembly. Background technique [0002] In recent years, with the rapid advancement of national urbanization, heavy-duty engineering dump trucks have been continuously developed. The weight of the powertrain of a heavy-duty dump truck is generally more than 1000kg. Under severe working conditions, the suspension part of the powertrain will be subject to a huge impact. [0003] In the current heavy-duty construction dump trucks, there are many types of rear suspension rubber pad assemblies in the powertrain, but the rear suspension rubber pad assembly mainly includes rubber pad pressing blocks, rubber pads, rubber pad bases and limit bolts, etc. structured as figure 1 shown. [0004] Such as figure 2 As shown, the traditional rubber pad base is divided into two symmetrical parts, and one side is composed of an inclined steel plate 11...

AI Technical Summary

Problems solved by technology

The base of the rubber pad has the following defects: when the inclined steel plates 11 on both sides support the rubber pad, the supporting force they can provide is relatively limited, so the inclined steel plates 11 are easy to crack after receiving the force from the rubber pad

The above-mentioned rubber pad pressing block has the following defects: First, the interior of the rubber pad pressing block is an inverted trapezoidal hollow structure, which causes the bending point a at both ends of the rubber pad pressing block to withstand the impact force and moment of inertia of the entire power assembly. The problem of frequent cracking occurs; secondly, the inclined surfaces on both sides of the rubber pad pressing block are vulcanized and bonded together with the rubber pad. When the vehicle passes through a bad road surface, the powertrain will generate a huge instantaneous tensile force in the vertical direction and compression force, resulting in frequent tearing and fracturing of the rubber pad

The above-mentioned rubber pads have the following defects: first, the rigidity of the rubber pads is small, and the ability to resist the instantaneous impact of the powertrain of a heavy-duty dump truck is insufficient, which may easily cause the main body of the rubber pads to be fractured; second, the first slope on both sides of the rubber pads 13 and the second inclined surface 14 are directly vulcanized and bonded to the rubber pad pressing block and the rubber pad base respectively, lacking protection and positioning measures. In order to ensure the bonding strength, this structure will put forward higher requirements for the vulcanization process. Once the vulcanization process Errors in the accuracy of the rubber pad will cause frequent tearing of the vulcanized bonding surface of the rubber pad in actual use conditions

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