Device for detection of perpendicularity between trailer axle and longitudinal beam and detection and locating method

Abstract

The invention discloses a device for detection of the perpendicularity between a trailer axle and a longitudinal beam and a detection and locating method. The device comprises a shear mode centering ruler, a handpiece assembly, an emission assembly and a computer, wherein the shear mode centering ruler is used for being hung to the axle longitudinal beam in a sucked mode, the handpiece assembly is used for being hung to the trailer axle in a sucked mode, the emission assembly is used for emitting light signals to the shear mode centering ruler and the handpiece assembly, and the computer is connected with the handpiece assembly in a communication mode. The detection and locating method comprises the steps that firstly, a middle line of the axle longitudinal beam is found; secondly, the angle between the trailer axle and the axle longitudinal beam is measured and adjusted; finally, the axle is measured and corrected, so that the angle value of the axle and the angle value of the longitudinal beam are both zero degree and zero second. By means of the device for detection of the perpendicularity between the trailer axle and the longitudinal beam and the detection and locating method, measurement can be conducted under the condition that the device is not set out, the work efficiency of trailer detection and adjustment is further improved, and the labor intensity of an operator is lowered.

Description

[0001] technical field [0002] The invention relates to a trailer computer detection and positioning device, and relates to its measuring and positioning method. In particular, it relates to a detection device and a detection and positioning method for the verticality of a trailer axle and a longitudinal beam. Background technique [0003] A semi-trailer is a trailer whose axle is placed behind the vehicle's center of gravity (when the vehicle is evenly loaded) and is equipped with a coupling device that can transmit horizontal or vertical forces to the tractor. It is mainly used to transport large and difficult to disassemble large parts goods. Compared with "single-body" cars, semi-trailers can better improve the comprehensive economic benefits of road transportation. [0004] Since the semi-trailer is a relatively special vehicle, the parallelism of the axle and the vertical relationship between the axle and the longitudinal beam directly affect the driving safety of t...

AI Technical Summary

Problems solved by technology

[0005] At present, the semi-trailer detection products produced by domestic manufacturers mainly use laser range finders for distance measurement. The main defect of this measurement method is that the trailer must be disengaged from the main vehicle to find out the point where the traction pin moves down vertically to the ground. Use the rangefinder to hit the scale installed on the tire centering fixture of the first axle axle, compare the values ​​at the same point on the left and right sides, and use the principle of isosceles triangle to repeatedly adjust and measure to determine the first axle, and then use a The bridge is used as the benchmark to measure the second bridge and the third bridge. In the process, it is necessary to repeatedly adjust the measurement, which increases the error, and the operation is cumbersome and wastes manpower.

And because the scale line on the scale is thinner, it is slower to find the alignment, so the overall work efficiency is lower

In addition, as a non-standard dot, the laser point cannot completely guarantee that the scale line is on the center of the light spot when it hits the scale line, which will also cause measurement errors

[0006] On the other hand, with the standardized production of domestic trailer manufacturers, the traction pin can be guaranteed to be on the center line of the longitudinal beam of the frame, while the distance between the axle and the traction pin is relatively far, so it is still necessary to find the vertical relationship between the axle and the longitudinal beam. there will be some error

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