Scraper bucket leveling mechanism of engineering vehicle
A technology of leveling mechanism and engineering vehicle, which is applied in the direction of earth mover/shovel, mechanically driven excavator/dredger, construction, etc. Interference and other problems, to achieve the effect of improving the working efficiency of the bucket, improving the loading capacity and efficiency, and being easy to achieve
Inactive Publication Date: 2019-04-12
JIANGSU XCMG CONSTR MASCH RES INST LTD
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Problems solved by technology
[0004] The existing technology has the following defects: the above-mentioned bucket solenoid valve leveling technology is susceptible to interference from the complex electromagnetic environment in the working environment, and cannot be accurately leveled
However, the leveling method of the leveling valve to control the flow consumes a lot of energy and requires a lot of components to work together, and the cost is high
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[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0034] The relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of descriptio...
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The invention discloses a scraper bucket leveling mechanism of an engineering vehicle. One end of a movable arm is hinged to a scraper bucket, and the other end of the movable arm is hinged to a vehicle frame; one end of a pull rod is hinged to the scraper bucket, the other end of the pull rod is hinged to a connecting rod, the other end of the connecting rod is hinged to the movable arm, and themovable arm, the scraper bucket, the pull rod and the connecting rod form a four connecting rod mechanism; one end of a scraper bucket oil cylinder is hinged to the connecting rod, the other end of the scraper bucket oil cylinder is hinged to the movable arm, and is used for pushing the scraper bucket to turn over downwards or upwards through expanding and contracting of the scraper bucket oil cylinder,; a movable arm oil cylinder is located on the lower side of the movable arm, one end of the movable arm oil cylinder is hinged to the vehicle frame, the other end of the movable arm oil cylinder is hinged to the movable arm, and is used for driving the movable arm to rise and fall through expanding and contracting of the movable arm oil cylinder,; a compensation oil cylinder is located on the upper side of the movable arm, one end of the compensation oil cylinder is hinged to the vehicle frame, and the other end of the compensation oil cylinder is hinged to the upper side of the movablearm; a reversing valve is mounted between the compensation oil cylinder and the scraper bucket oil cylinder; and when the reversing valve is located at a middle position, the compensation oil cylinder communicates with the scraper bucket oil cylinder, the compensation oil cylinder and the scraper bucket oil cylinder cooperate for use, and automatic leveling of the scraper bucket in the process that the movable arm rises and falls can be realized.
Description
technical field [0001] The invention belongs to the technical field of engineering vehicle equipment, and relates to a bucket leveling mechanism, in particular to a bucket leveling mechanism of an engineering vehicle. Background technique [0002] Due to the needs of the work, the boom of the engineering vehicle must have a working state where the bucket is always kept horizontal when the boom is raised. However, the main defect of the current general-purpose boom mechanism is that it cannot realize the automatic leveling of the bucket in a special working environment or the leveling ability is insufficient, so that the work efficiency is reduced. [0003] The existing boom mechanism adopts a solenoid valve leveling mechanism or uses a leveling valve to control the flow to realize the automatic leveling function of the bucket. [0004] The prior art has the following defects: the above-mentioned bucket electromagnetic valve leveling technology is easily interfered by the co...
Claims
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IPC IPC(8): E02F3/40E02F3/42
CPCE02F3/40E02F3/425E02F3/427
Inventor 郑淑萍杨增杰宋康
Owner JIANGSU XCMG CONSTR MASCH RES INST LTD