Moving crushing sieving station and semi-trailer chassis thereof

Abstract

The invention discloses a semi-trailer chassis. The semi-trailer chassis comprises a vehicle frame (1) which is capable of being connected with a tractor and a chassis supporting leg (2) fixed on a longitudinal beam (11) of the vehicle frame (1).The chassis supporting leg (2) comprises an outer sleeve (16), an inner sleeve (18) and a piston cylinder (17), wherein the inner sleeve (18) is sleeved with the outer sleeve (16) and can move along the outer sleeve (16); and a cylinder body of the piston cylinder (17) is fixed on the outer sleeve (16), and a telescopic rod of the piston cylinder (17)is connected with the bottom of the inner sleeve (18). A plurality of sets of pin holes are formed in the outer sleeve (16) and the inner sleeve (18) and used for switching and positioning the outer sleeve (16) and the inner sleeve (18). The chassis supporting leg (2) further comprises a positioning pin (20) which penetrates through one set of pin holes to position the outer sleeve (16) and the inner sleeve (18). The semi-trailer chassis effectively improves the working stability of a moving sieving station during working. The invention further discloses the moving crushing sieving station comprising the semi-trailer chassis.

Description

technical field [0001] The invention relates to the technical field of screening equipment, in particular to a semi-trailer chassis. In addition, the present invention also relates to a mobile crushing and screening station comprising the above-mentioned semi-trailer chassis. Background technique [0002] In recent years, with the rapid development of infrastructure, mining energy and other industries, the disadvantages of traditional fixed screening equipment have become increasingly prominent, such as large vibration and impact, heavy concrete foundation, and many supporting equipment. There are disadvantages such as high investment costs for equipment such as feeders, conveyors, and dust collectors. In order to adapt to the development needs of the new situation, the tire-type mobile screening station came out at the historic moment. The tire-type mobile screening station has the advantages of convenient movement, strong adaptability, flexible configuration, and environ...

AI Technical Summary

Problems solved by technology

At present, the supporting legs of crushing and screening machines on the market mainly have two types: hydraulic supporting legs and mechanical supporting legs. The main disadvantage of hydraulic supporting legs is that they rely on hydraulic locks to lock the hydraulic cylinders. The load acts directly on the oil cylinders, and hydraulic locks are prone to occur after long-term use. Internal leakage causes the fuselage to tilt and become unstable; the disadvantage of mechanical outriggers is that the height of the outriggers needs to be adjusted manually, which is inconvenient to use, and improper operation may easily cause safety accidents

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