Oil tank for construction machinery

Abstract

An embodiment of the invention discloses an oil tank for an engineering machine. The oil tank for the engineering machine comprises an oil tank body and an oil collecting and returning device communicated with the oil tank body, wherein multiple oil returning ports communicated with oil returning pipelines are formed in the oil collecting and returning device. The oil collecting and returning device is added on the oil tank body of the oil tank for the engineering machine, the oil returning ports of a part of valves and pumps are arranged in the oil collecting and returning device, so that the problem of excessive oil returning ports in the oil tank body is solved, and the strength of the oil tank body is improved. In addition, due to the fact the oil returning ports are concentrated on the oil collecting and returning device, the problem that the oil returning pipelines are complicated and intersected is also solved, the problem that the oil returning ports of the valves and pumps are difficult to arrange is solved, and hydraulic pipeline arrangement is optimized on the premise that the using requirement of a concrete pump is met. Due to the fact that the oil returning pipelines are concentrated, and arrangement and maintenance of the oil returning pipelines are facilitated.

Description

technical field [0001] The invention relates to the technical field of concrete pump trucks, and more specifically, relates to an oil tank for engineering machinery. Background technique [0002] The concrete pump truck is a mechanical device that uses pressure to continuously transport concrete along the pipeline. The pumping part of the off-car is installed on the chassis of the car, and the boom is used as a carrier on the car and equipped with a retractable or inflected boom to form a pump car. The concrete pump truck is transformed from the chassis of the truck. It is equipped with movement and power transmission devices, pumping and mixing devices, distribution devices and other auxiliary devices on the chassis. The power of the concrete pump truck transmits the power of the engine to the hydraulic pump group or the rear axle through the power transfer case. The chassis engine drives the main oil pump to work, and the high-pressure oil pumped out by the pump drives th...

AI Technical Summary

Problems solved by technology

[0003] Due to its special structure, the concrete pump truck has multiple hydraulic pipelines, and each hydraulic pipeline has an oil return pipeline. There are too many oil return ports on the machine, and the oil return pipelines are intricately connected together, which is not conducive to the layout of the oil return pipelines, and is also not conducive to the maintenance of the oil return pipelines.

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