.>B< c=>Pendulum friction coefficient measuring instrument
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.>< c=> 1. Preface to the pendulum friction coefficient measuring instrument:
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.>< c=> With the vigorous development of transportation, higher requirements have been put forward for the research and detection methods of anti-skid performance of roads such as highways, urban roads and airport runways. Our company has jointly developed a new generation of pendulum friction coefficient measuring instrument with relevant scientific research institutions. The instrument is stable and reliable, easy to debug, easy to operate, and has accurate test data, which is comparable to similar foreign products. This instrument can be used indoors, outdoors, and on site. It is an ideal anti-skid detection instrument in the construction and maintenance of high-grade roads.
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.>< c=> 2. Principle of pendulum friction coefficient measuring instrument:
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.>B< c=> type The pendulum friction coefficient measuring instrument is a dynamic pendulum impact instrument. It is developed based on the basic principle that the potential energy loss of the pendulum is equal to the work done by the rubber piece at the end of the swing arm to overcome the road friction when it slides on the road.
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.>< c=> 3. Structural diagram of the pendulum friction coefficient measuring instrument:
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.>< c=>: Base: It consists of
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.>< c=>, Upright column: It consists of upright column, lifting mechanism, guide rod and instrument handle, used to lift and fix the position of the swing head.
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.>< c=>, Release switch: A switch installed on the cantilever, used to maintain the horizontal position of the swing rod and release the pendulum from falling.
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.>< c=>, Steering system: including fastening handle, swing shaft, steering knuckle and bearing, connecting the pendulum and fixing the position to ensure freedom in the swing plane swing.
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.>< c=>, indicating system: including pointer felt ring, compression cover, pointer adjustment nut and dial, the pointer can directly indicate the swing value.
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.>< c=>, Swing head: It has upper and lower joints, swing rods, springs, levers, lifting handles, hammer shells, sliding blocks and rubber sheets (< c =>&.< c=>&.)< c=>, it has a prescribed moment at the swing center and a prescribed pressure on the road surface. The moments of front and back, left and right swing of the head are balanced, which is a measure of the friction coefficient of the road surface.
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.>< c=> 4. Main technical parameters of the pendulum friction coefficient measuring instrument:
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.>< c=> , Head swing quality: < c=>
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Song Dynasty.>< c=>, The positive static pressure of the rubber sheet on the road surface: (.)
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Song Dynasty.>< c=>, Rubber sheet specifications: < c=>&.< c=>&.
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.>< c=>, the outer edge of the rubber sheet has a swing center distance
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.>< c=>, the total mass of the instrument is: < c=> or so.
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