Single-degree-of-freedom electric control lifting mechanism for chain bucket trencher

Abstract

The invention discloses a single-degree-of-freedom electric control lifting mechanism for a chain bucket trencher. The single-degree-of-freedom electric control lifting mechanism for the chain buckettrencher is a planar single-degree-of-freedom mechanism and comprises a machine frame, self-adjustment driving chains and a bucket frame; each self-adjustment driving chain comprises an active rod anda telescopic rod; and the telescopic rods contain a local freedom degree, and cylinder bodies and piston rods are included. In order to increase the bearing capacity and improve the structural rigidity and bearing stability, the two self-adjustment driving chains can be mounted on the single-degree-of-freedom electric control lifting mechanism for the chain bucket trencher in parallel, the cylinder bodies containing the two telescopic rods communicate with each other, load borne by the two active rods can be more balanced according to the pascal law, and thus the problem that the stress of the two active rods is non-uniform due to the factors such as unbalance load of the chain bucket frame is avoided. The electric control lifting mechanism adopts connecting rod transmission which replaces a hydraulic power system of an existing chain bucket trencher, the manufacturing cost is reduced, a control system is simplified, furthermore the fault rate, energy consumption and maintenance costare effectively reduced, and the technical advantages are higher than those of the existing chain bucket trencher.

Description

technical field [0001] The invention relates to the field of chain-bucket trenchers, in particular to a single-degree-of-freedom electronically controlled lifting mechanism for chain-bucket trenchers. Background technique [0002] A multi-bucket excavator is an excavating machine that uses multiple buckets to continuously excavate, transport and unload. It has the characteristics of continuous operation, high productivity, and low unit energy consumption. It is especially suitable for excavating with low hardness and without large sand stony soil. Chain bucket trenching machine is a kind of multi-bucket excavator. It mainly uses multiple buckets installed on the endless chain of the bucket frame for continuous excavation, transportation and unloading operations. It is mainly used for digging ditches, canals, and correcting slopes. And mine stripping, mining and stockyard operations. [0003] The power system of the working device of the existing chain bucket trenching mach...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a single-degree-of-freedom electronically controlled lifting mechanism for chain bucket trenching machines, which has the characteristics of simple mechanical structure, low energy consumption, high reliability, low maintenance cost, etc., and has good flexibility of working devices , large working space, wide adjustable range of bucket frame pitch angle, etc., and also has a certain overload protection function, which overcomes the problems of low total power, low mechanical efficiency, and easy oil leakage accidents in the hydraulic system, and solves the controllable mechanism Under the influence of factors such as heavy-load environment and processing error, the two active rods installed in parallel are uneven in force, which can better meet the requirements of continuous excavation, transportation and unloading operations in ditches, canals, slopes, mines, etc.

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