Static friction angle tester

Abstract

The invention discloses a static friction angle tester. The tester comprises a bottom plate and a carrying plate, a stepping motor is fixedly connected to the outer wall of the top of the bottom plate, the output end of the stepping motor is fixedly connected with a coupler, the coupler is connected with a worm shaft, the end, away from the coupler, of the worm shaft is fixedly connected with a worm shaft spacer bush, a worm is fixedly connected to the outer wall of the worm shaft, the upper part of the worm is engaged with a worm wheel through a gear, and a driven long shaft is fixedly connected into the worm wheel. When a sample bottle begins to slide down to a position between two opposite-type gratings, a signal is instantly transmitted to stop the motor from rotating, the accuracy ofa measured value is guaranteed, the angle value displayed on a dial is four times of the rotating angle of a measuring platform under effect of two cylindrical gears in different sizes, the resolutionvalue of the displayed angle is smaller, and recording is more accurate.

Description

technical field [0001] The invention relates to the technical field of angle testers, in particular to a static friction angle tester. Background technique [0002] The friction tester is suitable for the friction life test of the surface and printing surface of various products. It mainly includes a sample loading platform, a friction head and a power device. The sample loading platform is used to install the sample to be tested, and the friction head is located above the sample to be tested. The upper friction medium keeps in contact with the surface of the sample to be tested, and the driving rod of the power device drives the friction head to reciprocate on the surface of the sample. Usually, the friction tester is only equipped with one friction head, which can only test a group of samples. [0003] Most of the friction testers currently on the market are used to measure the surface static friction coefficient of film sheets or some massive objects, and few of them can ...

AI Technical Summary

Problems solved by technology

[0002] The friction tester is suitable for the friction life test of the surface and printing surface of various products. It mainly includes a sample loading platform, a friction head and a power device. The sample loading platform is used to install the sample to be tested, and the friction head is located above the sample to be tested. The upper friction medium keeps in contact with the surface of the sample to be tested, and the driving rod of the power device drives the friction head to reciprocate on the surface of the sample. Usually, the friction tester is only equipped with one friction head, which can only test a group of samples

[0003] Most of the friction testers currently on the market are used to measure the surface static friction coefficient of film sheets or some massive objects, and few of them can measure the surface smoothness and static friction coefficient of packaging containers such as glass bottles, plastic bottles and aluminum cans. Accurate measurement equipment, and most of the existing measuring instruments are measured manually, the accuracy is low, and the calculation of the static friction coefficient and inclination angle is inconvenient. In addition, the manual measurement cannot maintain a uniform speed when the stage is turned over, and the error is large , and the levelness of the stage cannot be guaranteed

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