An articulated dump truck hood automatic opening and closing and locking system

Abstract

The invention relates to a novel hinged type automatic opening / closing and locking system for an engine hood of a dumper, and belongs to the technical field of mines. An engine hook assembly, a vehicle frame and a left box body are distributed sequentially from top to bottom; the left end of the vehicle frame is fixedly connected with the interior of the left box body; the left end of the engine hook assembly is rotatably connected with the vehicle frame or the left box body; support legs and a sector hinged pin shaft base in the engine hood assembly are fixed on the inner side of a front bumper of the vehicle frame; the support legs are not exposed so as to be conveniently assembled; when the engine hood body rotates to the maximum angle, the support legs and the vehicle frame contact with each other to limit the engine hood body, so that the safety of vehicles and surrounding persons can be guaranteed; by the gravity of the engine hood body, a lock pin is pressed into a hydraulic locking mechanism, and an opening / closing and locking execution mechanism consists of a manual-electric integrated pump assembly, a hydraulic cylinder lifting assembly, a hydraulic locking mechanism and an oil pipe; the manual-electric integrated pump assembly has two functions of manual starting and automatic starting; the hydraulic lifting cylinder has an anti-falling function, and because of a built-in oil-return check valve, the engine hood cannot be fallen down due to the gravity under the condition of damaged oil pipes, so that the safety of maintenance workers is guaranteed.

Description

technical field [0001] The invention relates to an automatic opening and closing and locking system of an articulated dump truck hood, which belongs to the technical field of mines. Background technique [0002] Articulated dump truck is a non-highway mining dump truck, which is generally used in rough, muddy and narrow roads. In order to ensure the safety of the whole vehicle, the mining area will check and maintain the vehicle every day. The engine is the engine of the whole vehicle. The core is the focus of daily maintenance. The engine is located inside the hood. The convenience of opening and closing the hood and the reliability of the opening and closing locking mechanism are very important. The hoods of existing articulated dump trucks are mostly opened by gas springs, which are laborious to open and close. Especially for larger articulated dump trucks, the hoods are heavy and difficult to open and close. Some models also use hydraulic lift cylinders. Opening and clo...

AI Technical Summary

Problems solved by technology

The hoods of existing articulated dump trucks are mostly opened by gas springs, which are laborious to open and close. Especially for larger articulated dump trucks, the hoods are heavy and difficult to open and close. Some models also use hydraulic lift cylinders. Opening and closing the hood is generally done manually or by foot, which is slow and inefficient; the locking mechanism generally adopts a mechanical lock, which has poor reliability, severe vibration of the hood, and short life of the lock; the hinge points of the hood of existing models They are all placed on the outside, located at the front of the hood, which is particularly abrupt and affects the appearance, and has no mechanical limit function

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