Device for reducing influence of friction force in impact measurement

Abstract

The invention relates to the technical field of impact measurement, and discloses a device for reducing influence of friction force in impact measurement. The device comprises a frame; an impact rod is slidably connected with the interior of the frame; extrusion rods are movably mounted at the left end and the right end of the upper end of the impact rod; symmetrically distributed arc-shaped bags are fixedly mounted at the upper end in the frame; air suction bags are fixedly installed on the opposite faces of the arc-shaped bags; and symmetrically-distributed fixed pipes are fixedly installed at the lower end of the interior of the frame. According to the device for reducing the influence of the friction force in impact measurement, in the downward movement process of an impact rod, an extrusion force is applied to the arc-shaped bags in cooperation with an extrusion rod, the arc-shaped bags are stressed and deformed to extrude the air suction bags, at the moment, the arc-shaped bags are in a deflation state, therefore lubricating oil in a liquid containing box can be pushed into a sealing pipe, and then the lubricating oil is smeared on the impact rod through the sealing pipe, so that the effect of automatically smearing the lubricating oil is achieved.

Description

technical field [0001] The invention relates to the technical field of impact measurement, in particular to a device for reducing the influence of friction in impact measurement. Background technique [0002] The impact process is the process of physical mutual collision or impact. In the process of collision or impact, there is a force that suddenly increases and disappears rapidly when the object is seized. This force is called impulsive force or impact force. The role of impact force The time is short, but the value of the action and a point can reach a large value. Because in the process of measuring the impact force, an external force is required to play the role of limiting and fixing, a certain friction force will be generated between the two. [0003] In the process of testing the impact force, the friction force will have a certain impact on the final test data, but it cannot get rid of the role of the limit. Therefore, in the process of testing the impact force, th...

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