Truss type bridge detection vehicle capable of regulating crossing height in stepless manner

Abstract

The invention discloses a truss type bridge detection vehicle The truss type bridge detection vehicle at least comprises a vehicle body, a main arm and a truss assembly, wherein the main arm is connected with a rotating table of the vehicle body, the truss assembly is connected with the vehicle body through the main arm, the main arm at least comprises a rotating table connected with the rotating table of the vehicle body and a horizontal arm frame connected with the truss assembly, and the rotating table is connected with the horizontal arm frame through a lifting oil cylinder and two connecting rods. The two connecting rods, the rotating table and the horizontal arm frame jointly form a parallelogram-shaped connecting rod mechanism, so that the crossing height of the truss type bridge detection vehicle is increased and can be regulated freely within the highest crossing height range to reach multiple crossing heights; therefore, the crossing height of the truss type bridge detection vehicle can be set flexibly and variably, thereby greatly improving the operation applicability; simultaneously, the truss type bridge detection vehicle further has the advantages of compact and simple structure, high safety and low overall energy consumption.

Description

technical field [0001] The invention relates to a truss type bridge inspection vehicle, in particular to a main arm of the truss type bridge inspection vehicle. Background technique [0002] The spanning height of the truss-type bridge inspection vehicle is an important parameter to measure its operational adaptability. The greater the spanning height, the more it can ensure that the truss-type bridge inspection vehicle can cross higher obstacles such as sound insulation panels and windshields for inspection operations. [0003] In order to have a higher spanning height, the truss-type bridge inspection vehicle in the prior art usually uses a hydraulic cylinder and an inclined frame as a lifting mechanism to achieve a higher spanning height. For example, the Chinese patent disclosed on October 24th, 2007, the patent title of which the publication number is CN200964564Y is a mobile bridge detection suspension. On the frame, the turntable and the truss are connected by a tilt...

AI Technical Summary

Problems solved by technology

[0004] Although the mobile bridge detection suspension can have an ideal spanning height, the spanning height is fixed, and the mobile bridge detection suspension must reach the spanning height after the hydraulic cylinder action is completed, otherwise the truss will be in an abnormal working state without the ability to detect

In the actual use process, if there are high-voltage wires on both sides of the bridge that are lower than the spanning height of the mobile bridge detection suspension, even if it can cross the sound insulation board or windshield, it will not be able to detect the bridge due to the high-voltage wires blocking it. The area is tested

Images