Mechanical electric lifting mechanism for dump truck

Abstract

The invention relates to a mechanical electric lifting mechanism for a dump truck, and the mechanism comprises a driving lever, a connecting rod, a driven lever, a sliding block, a car hopper, a frame, a speed reducer and a motor, wherein one end of the driving lever is connected with the frame by virtue of a first revolute pair, and the other end of the driving lever is connected with the connecting rod by virtue of a second revolute pair; the other end of the connecting rod is connected with the sliding block by virtue of a fifth revolute pair; the middle of the connecting rod is connected with the driven lever by virtue of a fourth revolute pair; the other end of the driven lever is connected with the frame by virtue of a third revolute pair; the sliding block is connected with the car hopper by virtue of a sliding pair; the rear end of the car hopper is connected with the frame by virtue of a sixth revolute pair; and the driving lever is driven by the motor through the speed reducer. The mechanical electric lifting mechanism is driven by the motor and transmitted by the connecting rod, is capable of effectively solving the problems that a hydraulic system of the traditional hydraulic dump truck is high in processing and assembling requirements of parts, short in service life and high in maintenance cost, leaks oil and the like, and has good dynamic and static mechanical property and large work space.

Description

technical field [0001] The invention relates to the field of engineering dump trucks, in particular to a mechanical electric lifting mechanism for dump trucks. Background technique [0002] A dump truck is a special vehicle that installs a lifting mechanism on the chassis, uses the lifting mechanism to tilt the compartment at a certain angle to unload, and relies on the self-weight of the compartment to reset it. The existing dump trucks are all hydraulic transmission type, which has the advantages of simple structure and large lifting force, but its hydraulic system has the disadvantages of high processing and assembly requirements for hydraulic components, difficult maintenance, high manufacturing cost, etc., and the hydraulic oil is greatly affected by temperature. , The overall efficiency is low, and the leaked hydraulic oil will cause environmental pollution, which seriously restricts the application and promotion of dump trucks. Moreover, due to the limitations of its...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a mechanical electric lifting mechanism for dump trucks, which is driven by a motor and driven by a connecting rod, which can effectively solve the problem of high processing and assembly requirements for parts of the hydraulic system of traditional hydraulic dump trucks, short service life, oil leakage, etc. Disadvantages such as high maintenance costs, good dynamic and static performance of the mechanism, and large working space

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