Liquefied natural gas (LNG) cylinder frame for commercial vehicle

Abstract

The present invention provides a liquefied natural gas (LNG) cylinder frame for a commercial vehicle. The LNG cylinder frame for the commercial vehicle comprises left and right bottom beams and left and right saddles. The left bottom beam and the left saddle, and the right bottom beam and the right saddle are separately connected with two connecting plates by adopting a plurality of bolts and nutsto form two assemblies. The two assemblies are assembled with two upper beams, a buffer tank support and a water bath support to form the overall structure of the cylinder frame by adopting a plurality of the bolts and the nuts. The left and right bottom beams and the left and right saddles are stamping forming parts of which the cross sections are [-shaped, and the stamping forming parts are symmetrical in shape. A pair of drawstring supports is installed at each of the upper ends of the outer sides of the left and right saddles. A plurality of pipe via holes are punched in each of the sidesof the left and right saddles. A pipe clamp fixing plate is installed below each pipe via hole. Two reinforcing plates are welded at the both ends of the open face of each of the left and right bottom beams. One or more lightening holes are punched in each of the members. By applying the LNG cylinder frame for the commercial vehicle, the welding deformation of the frame can be avoided, the difficulty in disassembling and assembly is solved, the occurrence of weld cracking failure during the running of the vehicle is avoided, the overall weight of the frame is reduced by 40%, and the production efficiency is improved by times.

Description

technical field [0001] The invention relates to the field of commercial vehicles, in particular to the field of LNG cylinder frames for commercial vehicles. Background technique [0002] Liquefied natural gas (English abbreviation LNG) is an internationally recognized clean energy, which has the characteristics of colorless, odorless, non-toxic, non-corrosive, small volume of the same amount of gas, and low cost of use. Therefore, in recent years, it has been increasingly used by various commercial vehicles as an alternative energy source. The LNG gas cylinders used by commercial vehicles generally lie on the frame fixedly connected to the chassis behind the cab. Most of the LNG gas cylinder frames in the prior art adopt the structure of steel plate and / or steel pipe welding combination, such structure is heavy, the welding deformation of the frame is large, the production efficiency is low, installation and disassembly are difficult, and the weld seam cracks during the dri...

AI Technical Summary

Problems solved by technology

[0003] In view of the problems existing in the above-mentioned prior art, the object of the present invention is to provide a commercial vehicle LNG gas cylinder frame for placing gas cylinders. The components are all formed by steel plate stamping process, and measures such as punching lightening holes and reinforcing ribs are carried out. Lightweight design, and then assembled into a frame by bolts and nuts, avoiding the welding deformation of the frame, the difficulty of disassembly and assembly, and the occurrence of weld cracking failures during the driving process of the vehicle, which also greatly reduces the product weight and improves production efficiency.

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