Braking type large-scale friction coefficient measuring apparatus
A friction coefficient and measuring device technology, applied in measuring devices, mechanical devices, instruments, etc., can solve the problems of small one-time measuring area and large sudden change of measured values, and achieve simple and convenient equipment structure and simple and convenient operation process. Effect
Inactive Publication Date: 2012-10-24
CHANGAN UNIV
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Problems solved by technology
The disadvantage of this equipment is that the one-time measurement area is small and the measured value has a large mutation
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[0019] The present invention is described in further detail below in conjunction with accompanying drawing:
[0020] see figure 1 and figure 2 , the brake-type large-range friction coefficient measuring device of the present invention comprises a door-shaped frame body 2, the lower ends of both sides of the frame body 2 are provided with trolley wheels 5, and the whole frame body 2 is placed on the rutted plate or road surface 6; The middle part of the frame body 2 is provided with a fan-shaped friction body 4 through the shaft 2 3, and the center of the fan-shaped friction body 4 is sleeved on the shaft 2 3 through the shaft hole; the arc section of the fan-shaped friction body 4 is downward, and its arc-shaped surface A tire rubber layer is arranged on it; an axis 1 parallel to the axis 2 3 is arranged on the upper part of the frame body 2; a small prism 8 is arranged between the upper end of the fan-shaped friction body 4 and the axis 1, and the small prism 8 is the pres...
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Abstract
The invention discloses a braking type large-scale friction coefficient measuring apparatus which comprises a door-shaped frame body. Small wheels are arranged at the lower part of both sides of the frame body; a fan-shaped friction body is arranged at the central part in the frame body through shaft II, and the center of the fan-shaped friction body is sleeved on the shaft II through a shaft hole; an arc section of the fan-shaped friction body faces down, and an arc surface of the arc section is provided with a tire rubber layer; shaft I parallel to the shaft II is arranged at the upper part in the frame body; and a small prismoid is arranged between the upper end of the fan-shaped friction body and the shaft I, and theprismoid is a small pressure sensor. The apparatus can test friction coefficients of different pavements in road engineering and friction coefficients of a pavement under different environment conditions like different temperature and humidity and has the advantages of simple measuring principles, simple operation, accurate and rapid measuring and capacity of realizing rapid, objective, accurate and highly efficient detection of friction coefficients of pavements.
Description
technical field [0001] The invention belongs to the technical field of road engineering pavement, and relates to a measuring device for road engineering pavement, in particular to a braking type large-range friction coefficient measuring device. Background technique [0002] The anti-skid problem of the road surface is one of the weak links of its construction technology, especially in winter, rainy season and road curves, the road surface with insufficient anti-skid ability often occurs vehicle skidding and out of control, causing casualties and property losses. Since the anti-skid performance of the pavement is closely related to driving safety, and the anti-skid performance of the pavement is affected by many factors such as weather (climate) and road surface conditions, advanced testing equipment and technology are particularly important. However, my country's current pavement anti-skid performance testing equipment, technology and evaluation methods are still insufficie...
Claims
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IPC IPC(8): G01N19/02
Inventor 郑木莲张林林
Owner CHANGAN UNIV