High-flatness load-bearing ground rail

Abstract

The invention discloses a high-flatness load-bearing ground rail which comprises rails and ground anchor assemblies, and is characterized in that the lower surfaces of a plurality of rails are connected with a plurality of load-bearing brackets; each load-bearing bracket consists of a cross beam, a plurality of vertical beams and two slanting beams; the vertical beams are correspondingly arranged at the rails; the lower surfaces of the vertical beams are connected with adjustment screw rods; the rails are clamped and fixed between the cross beams and the vertical beams; every two slanting beams are connected with two vertical beams in the middle in an intersecting manner through long circular holes. According to the high-flatness load-bearing ground rail disclosed by the invention, the load-bearing brackets of meshed structures are transversely arranged along the rails, and every four rails form a group; the vertical beams are arranged below each rail, so as to ensure that the transverse position of the rail can be adjusted; the two vertical beams in the middle are connected through two slanting beams, so as to guarantee the stability of an adjustment device; two load-bearing brackets are arranged in the longitudinal directions of the rails, so as to ensure that the longitudinal positions of the rails can be adjusted. The high-flatness load-bearing ground rail can meet the high-flatness requirement of a large-area and high-rigidity load-bearing ground rail, so that the loading precision of a strength test basic platform is guaranteed; the adjustment time can be saved, the labor intensity of a worker is relieved, the reliability is guaranteed, and the working efficiency is improved.

Description

Technical field [0001] The invention relates to a rail vehicle strength test foundation platform, in particular to a load-bearing ground rail. Background technique [0002] The strength test foundation platform is the foundation of static strength and fatigue strength tests. It is very important to build a foundation platform that can meet the strength and flatness of the test requirements. At present, the construction area of ​​the strength test foundation platform is huge, and the number of load-bearing ground rails required is huge. It is necessary to ensure the flatness of the large-area load-bearing ground rail. Because the test base platform needs to withstand 300kN / m 2 Pressure, 200kN / m 2 Tensile force, 150 kN / m 2 Longitudinal force, 150 kN / m 2 Lateral force, its flatness must meet the requirement of 1mm / m, so as to ensure the stability and reliability of loading on the platform. [0003] At present, the adjustment method of the load-bearing ground rail is mainly used to we...

AI Technical Summary

Problems solved by technology

However, after the I-beam is welded to the load-bearing ground rail, the load-bearing ground rail will be greatly deformed. For the load-bearing ground rail with high rigidity and deformation, adjusting the four bolts cannot make the load-bearing ground rail meet the flatness requirements.

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