Chewing simulation abrasion testing machine

Abstract

The invention discloses a chewing simulation abrasion testing machine. The chewing simulation abrasion testing machine comprises a lower jaw simulation mechanism, an upper jaw simulation mechanism and a saliva groove, wherein a variable-frequency motor of the lower jaw simulation mechanism is used for driving a cam to rotate through a transmission shaft, and the cam is used for driving a push rod of a driven part to do reciprocating movement through a roller, so as to realize the vertical movement of a lower jaw in the chewing process; an alternating current motor of the upper jaw simulation mechanism is used for driving an upper specimen table to rotate through an output shaft; in the vertical reciprocating process of a lower specimen table, when the lower specimen table is in contact friction with a specimen on the upper specimen table, the upper specimen table is rotated to approximately simulate the horizontal grinding process of the user in the chewing process, and the stress of the specimen is more approximate to the chewing stress of teeth in an oral cavity; a pressure sensor is arranged at the groove root of each upper specimen, and the saliva groove is fixed, and sealed on the lower specimen table. The chewing simulation abrasion testing machine has the advantage that when the vertical reciprocating movement of the lower jaw is simulated, the upper specimen table is rotated to simulate the horizontal grinding of the teeth in the chewing process.

Description

technical field [0001] The invention relates to a test piece fatigue wear test device, in particular to a chewing simulation wear test machine which can detect tooth fatigue strength by simulating human oral saliva environment and occlusal process. Background technique [0002] Chewing is an essential physiological activity for human beings, and the teeth are bound to be worn to varying degrees during the chewing process. The tooth wear test machine is an instrument for checking the fatigue life of teeth or other artificial tooth materials under the condition of simulating the human oral saliva environment and the chewing action of the upper and lower jaws. Teeth or other materials wear a small amount in a short period of time, and the fatigue life often needs a long time of wear to be observed. Therefore, in terms of efficiency and accuracy, the invention and use of abrasion testing machines are very important. [0003] At present, there are several chewing simulation fati...

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Problems solved by technology

[0004] The purpose of the present invention is to improve and innovate the deficiencies of the existing simulated chewing fatigue testing machine, which cannot timely output the normal pressure on the test piece, and provide a toothbrush with simple structure, convenient operation and more reference value in test results. Chewing Simulated Abrasion Tester

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