A new energy logistics vehicle, carriage, chassis and assembly method thereof

Abstract

The invention discloses an underframe of a new energy logistics vehicle. The underframe of the new energy logistics vehicle comprises at least two longitudinal beams extending in the longitudinal direction; multiple transversely extending cross beams are distributed on the two longitudinal beams in the length direction; the cross beams are arranged above the longitudinal beams and fixedly connected to the longitudinal beams through fastening pieces; the multiple cross beams are arranged in the length directions of the longitudinal beams and located by using two locating strips; multiple locating holes are formed in the locating strips; through holes matched with the locating holes are formed in the two sides of each cross beam; and the cross beams are located and fixed to the locating strips by using the fastening pieces which penetrate through the through holes and the corresponding locating holes. According to the underframe of the new energy logistics vehicle, the cross beams and the longitudinal beams on the underframe are positioned by using the locating strips according to a mounting reference, the locating is accurate, the assembling is convenient, and the mounting is form.

Description

technical field [0001] The invention belongs to the technical field of vans and new energy vehicles, and more specifically relates to a new energy logistics vehicle, a carriage, an underframe and an assembly method thereof. Background technique [0002] Vans, also known as vans, are mainly used for fully sealed transportation of various items, and special types of vans can also transport chemical dangerous goods. During the transportation process, the van has the advantages of flexible maneuvering, convenient operation, high efficiency, large transportation capacity, full use of space, safety and reliability. Traditional vans are fuel vehicles with sufficient power, long mileage, and convenient refueling. Therefore, iron corrugated boards are generally used to make the carriages. Such carriages are heavy and cannot be used in electric new energy vehicles. Moreover, cities around the world have higher and higher requirements for energy conservation and environmental protecti...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there are still some defects in the new energy logistics vehicle, including: 1) The side panels of the compartment and the underframe are connected by connecting strips arranged on the outside of the compartment, the connection strength is low, the structure is not strong enough, and there are side doors. The connecting strip connecting one side with the underframe is divided into three sections, which affects the overall structural strength of the carriage and the connection strength between the side door frame assembly, the side panel and the underframe of the carriage; 2) The underframe of the carriage is welded into a whole with I-beams , bulky, heavy, transportation, storage and installation are very inconvenient, and according to different sizes and specifications of the carriages need to be customized in the chassis manufacturer, the assembly factory is difficult to assemble by itself, and the efficiency is low; 3) the rear door of the carriage is always The connection parts of the finished parts are only welded or spliced ​​by fasteners, which is inconvenient and not firm enough to assemble. The main body of the rear door frame vertical rod is made of a hollow L shape by bending the plate. The main body of the rear door frame vertical rod includes the main body and the vertical There are reinforcing plates welded between the card slots, and the internal welding is difficult; 4) The skirt plate is fixed and installed on the side of the chassis of the new energy logistics vehicle as a whole. When the logistics vehicle is overhauled, it is necessary to It is inconvenient to drill into the bottom of the car or jack up the whole car, especially when the battery is placed on the chassis of the new energy logistics car, it is very inconvenient to replace and overhaul the battery; 5) The roof of the car is made of a whole composite plate, Because of the large area and the horizontal suspension, it is easy to collapse in the middle, which will affect the strength of the carriage

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