Two-stage linkage rolling and sliding discharging device for self-discharging semitrailer

Abstract

The two-stage linkage rolling and sliding discharging device comprises a frame, the frame comprises two longitudinal beams, a plurality of cross beams are arranged between the two longitudinal beams, a plurality of supporting cross beams are arranged on the outer sides of the longitudinal beams at intervals, edge beams are arranged at the ends of the supporting cross beams, and frame bottom plates are arranged at the upper ends of the edge beams and the longitudinal beams; the first-stage rolling and sliding discharging mechanism comprises a carriage, the carriage is arranged on a frame in a rolling and sliding mode, a first-stage discharging oil cylinder is arranged at the bottom of the frame and connected with the carriage, the front portion of the bottom of the carriage is blocked by a carriage bottom plate, the rear portion of the carriage is designed to be hollow, and a leakage-proof cross beam is arranged on the carriage and arranged on the inner side of the carriage bottom plate. The secondary rolling and sliding unloading mechanism comprises an unloading trolley which is arranged on a bottom plate of the carriage in a rolling manner, the unloading trolley is provided with a material pushing plate, and a secondary unloading oil cylinder is arranged between the unloading trolley and the carriage; the locking mechanism comprises a locking oil cylinder and a locking sleeve. The device has the advantages of reasonable structural design, low cost, stable and reliable operation, durability and the like.

Description

Technical field: [0001] The invention relates to the technical field of bulk cargo transport vehicles, in particular to a two-stage linkage rolling and sliding unloading device for a self-unloading semi-trailer. Background technique: [0002] Dump semi-trailer is mainly used for grain, ore, coal, steel and other bulk cargo transportation. In order to realize the automatic unloading of the semi-trailer, various attempts have been made in the existing technology. At present, there are two common self-unloading methods. One is to unload the material by means of chain conveying, that is, a plurality of chains are set at the bottom of the carriage. chain, and then install the conveyor belt on the chain, and drive the chain to rotate so that the material on the conveyor belt is transported to the rear of the carriage, and the rear door of the carriage is opened for unloading; The push plate is designed. When unloading, the push plate is driven by the oil cylinder to move along th...

AI Technical Summary

Problems solved by technology

[0003] Although the above two self-unloading methods can realize the automatic unloading of materials, in the process of practical application, it is still found that there are deep-seated technical problems that need to be further studied and solved in terms of technical structure.

For example, when using a chain-type unloading structure for self-unloading, not only the structure is complex and the cost is high, but also many parts are vulnerable and fragile, such as the conveyor belt needs to withstand the impact and friction of the material, and it is easy to age and wear after a period of use If it is damaged, it needs to be replaced regularly. For example, the chain needs to be lubricated in real time by the lubrication system, otherwise the chain is easy to rust and freeze. Generally speaking, the production cost of the chain unloading structure is high, and the maintenance cost is high.

Although the sliding plate unloading structure has the advantage of low cost, it is relatively difficult to push and unload dozens of tons of materials in the carriage only by a single push plate. In addition, the length of the carriage reaches tens of meters and requires the use of multi-stage oil cylinders. This undoubtedly puts forward higher requirements on the performance of the multi-stage oil cylinder, which makes the multi-stage oil cylinder become a relatively easy-to-break part in actual use, and cannot achieve the purpose of long-term use

Images