Tester and method for testing surface evenness

A tester and flatness technology, which is applied in the field of road engineering road surface flatness detection, can solve the problems of low detection accuracy and low efficiency, and achieve the effect of economical and practical, intuitive numerical value and simple operation

Inactive Publication Date: 2014-01-22
CHANGAN UNIV
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  • Application Information

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Problems solved by technology

Flatness testing equipment is divided into two types: section type and reaction type. At prese

Method used

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  • Tester and method for testing surface evenness
  • Tester and method for testing surface evenness
  • Tester and method for testing surface evenness

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Embodiment Construction

[0024] The present invention is described in further detail below in conjunction with accompanying drawing:

[0025] see figure 1 , a road surface smoothness tester of the present invention comprises a metal box 1 with wheels, and the distance between the centers of the two wheels at the bottom of the metal box 1 is 3m. An electromagnetic relay 5 is arranged on the top surface of the metal box 1, and a control switch 6 is installed on the electromagnetic relay 1. The upper surface of the metal box 1 is equipped with a connecting bracket 7 for driving the metal box 1 to move during detection. A number of rubber tubes 2 placed longitudinally are arranged inside the metal box 1; each rubber tube 2 is provided with a longitudinal groove on its side, and a metal needle 3 is arranged in the groove, and the groove provided on the side of the rubber sleeve 2 It is a rectangular slot longitudinally opened, and the rectangular slot can accommodate the protrusion on the upper end of th...

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Abstract

The invention discloses a tester and a method for testing surface evenness. The tester comprises a rectangular metal box with wheels at the bottom, wherein a piece of carbon paper is arranged at one side surface of the metal box, an electromagnetic relay is arranged at the top of the metal box, a certain quantity of round holes are arranged at the bottom surface of the metal box with equal intervals, rubber tubes with certain aperture are arranged in the metal box and correspond to the round holes, grooves are formed in the rubber tubes along the overall length in the vertical direction, the openings of the grooves are opposite to the carbon paper, metal pins with certain length are arranged in the rubber tubes, and the protruding parts of the top ends of the metal pins are in contact with the carbon paper at the openings of the grooves. According to the tester, the surface evenness tested by a three-meter ruler is improved. The test principle is simple, test operation is simple, and the test data is accurate and can be observed, the tester is economical and practical.

Description

technical field [0001] The invention belongs to the field of road engineering road surface smoothness detection, and in particular relates to providing a road surface smoothness tester and a measuring method. Background technique [0002] The smoothness of the pavement is related to the smoothness of each structural level of the pavement, that is, the leveling effect of each level will be cumulatively reflected on the pavement surface. The roughness test is a prescribed standard gauge, which measures the unevenness of the road surface intermittently or continuously, that is, the index of unevenness, and is an important link in the acceptance and maintenance of the road surface. Flatness testing equipment is divided into two types: section type and reaction type. At present, flatness testing generally has problems such as low detection accuracy and low efficiency. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcoming of abov...

Claims

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Application Information

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IPC IPC(8): E01C23/01
Inventor 郑木莲王帅王涛彭平
Owner CHANGAN UNIV
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