Forklift hydraulic system and its cold chain forklift

Abstract

The invention discloses a forklift hydraulic system. The forklift hydraulic system comprises an oil tank and a moisture filter breather assembly which is arranged at an air inlet of the oil tank and is used for absorbing moisture in air entering the oil tank. According to the forklift hydraulic system, through arrangement of the moisture filter breather assembly, in a low-temperature environment,when the air passes through the moisture filter breather assembly, moisture and solid particles in the air are removed, so that the moisture and solid particles are effectively prevented from invadinginto the oil tank; the working performance and reliability of the hydraulic system are favorably improved; and the service life of oil and the equipment is prolonged. The invention also provides a cold-chain forklift.

Description

technical field [0001] The invention belongs to the technical field of forklifts, in particular, the invention relates to a forklift hydraulic system and a cold chain forklift equipped with it. Background technique [0002] With the rapid development of cold chain logistics, the demand for cold storage continues to rise, and the design and application of logistics equipment in low temperature environments has become a hot spot in the industry. As the key equipment for cold storage logistics handling, cold chain forklifts play an important role in cold storage operations. Due to the particularity of the cold storage environment, it must be considered that when the cold chain forklift operates in a low temperature environment, the air humidity is high and there is a lot of water vapor. Once water is mixed into the hydraulic oil, it will not only cause emulsification of the hydraulic oil, but also affect the life of the hydraulic components and Use performance has an impact. ...

AI Technical Summary

Problems solved by technology

[0003] For the existing cold chain forklifts used in the cold chain environment, the method of heating the hydraulic oil is mainly used to remove the moisture in the hydraulic medium. Using this method, the removal of moisture can achieve a good effect, but the forklift battery There is a certain loss of electricity, and the structure of the water vapor collection device is complicated, and the space requirement for the forklift is too high

Moreover, in the cold storage environment where the cold chain forklift is located, the air is humid and the temperature is low. After moisture enters the hydraulic system, it will cause certain harm to the stability and accuracy of the hydraulic components and system; Oil cylinders, steel pipes, oil pipe joints, etc. are corroded to a certain extent, the seal of the hydraulic system is easy to harden and deteriorate, and the fluidity of hydraulic oil is poor

[0004] The damage mentioned above will affect the mechanical performance of the hydraulic system of the forklift under the action of long-term damage, and will also pose a certain threat to personal safety.

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