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Pavement planometer

The technology of a leveling instrument and a measuring wheel is applied in the field of engineering leveling instruments, which can solve the problems of large measurement error and poor automatic leveling ability of the body, and achieve the effects of simple operation, strong leveling ability and high reliability.

Active Publication Date: 2005-10-26
BEIJING MUNICIPAL ENG RES INST
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a road surface leveling instrument to solve the technical problems of poor automatic leveling ability of the machine body and large measurement error

Method used

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Examples

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Embodiment Construction

[0031] Examples see figure 1 , 2 , 3, 4, the body of this road leveling instrument is an eight-wheel retractable leveling structure, the body is fixedly connected to the main engine, and the specific structure of the body part is as follows:

[0032] The composition of front wheel group 1: four front wheels 11,12 are connected with front wheel frame 13, connect traction frame 15 at the front part of front wheel frame, connect the front beam 14 that extends backward at the front wheel frame top, front The rear end of the beam is inserted and stretched in the middle beam 34 .

[0033] The composition of rear wheel group 2: four rear wheels 21,22 are connected with rear wheel frame 23, connect the rear beam 24 that extends forward at the rear wheel frame top, the rear beam front end inserts and stretches in the middle beam 4.

[0034] see Figure 7 , 8 , 9, the composition of above-mentioned rear wheel frame: connect two small longitudinal beams 25 of two side front wheels, t...

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Abstract

This is a kind of road surface planometer including machinery body and host which comprised of microcomputer, displaying screen, printer and pile. Its machinery body is eight-wheel extendable level adjusting structure. On the host is firmly linked the host rack, host and displacement sensor. The front wheel group is connected with the front wheel machinery rack by four front wheels. The foreside of the front wheel machinery rack is connected with traction rack, the upside of the front wheel machinery rack is connected with the front back extended girder, and the rearward of the front girder is inserted and flexed inside the middle girder. The back wheel group is connected with the back wheel machinery rack by four back wheels, the upside of the front wheel machinery rack is connected with the forward extended back girder, and the rearward of the back girder is inserted and flexed inside the middle girder. The middle girder is firmly linked by two transverse hollow poles. The upper gemel of the middle girder is linked with the testing wheel arm, whose lower end equips testing wheels. There links pulling reeds between testing wheel and machinery body. It's provided with advantages as convenient to transport, simply to operate, well and truly tested, high dependability, high level adjusting ability and simple to use. It can be used in testing the road surface smoothness of road, square and airport runway.

Description

(1) Technical field [0001] The invention relates to an engineering level measuring instrument, in particular to a road surface level measuring instrument. (2) Background technology [0002] The road level gauge is a measuring instrument for testing the flatness of asphalt or concrete roads such as roads, squares, and airport runways. Existing road surface level measuring instrument comprises body, host computer, and host computer comprises sensor, microcomputer, display screen, printer and battery pack. Its body is a four-wheel structure, its automatic leveling ability is poor, and its measurement error is large. (3) Contents of the invention [0003] The purpose of the present invention is to provide a road surface leveling instrument, which solves the technical problems of poor automatic leveling ability and large measurement error of the machine body. [0004] The technical solution of the present invention: the road surface level measuring instrument includes a body ...

Claims

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Application Information

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IPC IPC(8): E01C23/01
Inventor 戴燕超冯学范孙源刘平
Owner BEIJING MUNICIPAL ENG RES INST
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