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Chaw simulation circulation load application machine for dentistry

A technology of chewing simulation and cyclic loading, which is applied in the direction of applying repeated force/pulsation force to test the strength of materials, etc., can solve the problems of single limited test object, poor comparability between groups, and low efficiency, so as to save experimental time and increase the number of groups. Inter-comparability, easy replacement effect

Inactive Publication Date: 2009-05-27
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these instruments can only test a single specimen, the efficiency is low, the comparability between groups is poor, the test object is relatively single and limited, and cannot meet the needs of existing oral materials and restorations in vitro experiments

Method used

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  • Chaw simulation circulation load application machine for dentistry
  • Chaw simulation circulation load application machine for dentistry
  • Chaw simulation circulation load application machine for dentistry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] Such as figure 1 As shown, the movable plate 19 in the dental chewing simulation cycle loader is sleeved on the upper column 21 through the copper sliding sleeve 20, the movable plate is in contact with the cam 16 through the fixed pulley 18, the fixed pulley is fixed on the pulley bracket 17, and the pulley bracket is fixed On the movable plate, the cam, the motor 9 and the reducer 8 are fixed on the cam bracket 15, the cup column 6 is fixed on the movable plate, and the guide cup 5 for loading the test piece is contained in the cup column, and the movable plate passes through the lower pillar 14 and the bottom plate. 13 is connected with the shock absorber 12, the movable plate is connected with the counter 11 through the connecting rod 7, the counter and the cam bracket are fixed on the bottom plate, the upper plate 22 is fixed on the upper pillar 21, and a plurality of loading plates matching the guide cup are arranged on the upper plate. The head 4, the loading hea...

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Abstract

The invention discloses a chewing simulation cyclic loading machine for dentistry, which is characterized in that: a movable plate (19) in the loading machine is sleeved on an upper vertical post (21) through a copper sleeve (20), and is contacted with a cam (16) through a fixed pulley (18) which is fixed on a pulley support (17), the pulley support is fixed on the movable plate, the cam, a motor (9) and a speed reducer (8) are fixed on a cam support (15), a cup post (6) fixed on the movable plate is filled with a guide cup (5) for loading test pieces, the movable plate is connected with a bottom plate (13) and a shock absorber (12) through a lower prop (14), and connected with a counter (11) through a link rod (7), the counter and the cam support are fixed on the bottom plate, an upper plate (22) which is fixed on the upper vertical post (21) is provided with a plurality of loading heads (4) matching with the guide cup, the loading heads are fixed on the upper plate by nuts (2) through bolts (1) and gaskets (3).

Description

technical field [0001] The invention relates to a dental mastication simulation cycle loader, which belongs to auxiliary testing equipment for oral materials and prosthesis. Background technique [0002] The material can be damaged under the action of cyclic (alternating) stress. At this time, the stress suffered by the material is often much smaller than its ultimate strength, or even smaller than its elastic strength. This phenomenon is called fatigue. According to the definition of fatigue by the International Standard Organization, the characteristics of material changes caused by repeated stress and strain, whether the changes are surface cracks or complete fractures, are called fatigue. [0003] Teeth and restorations located in the oral cavity are subjected to cyclic, alternating force. Although oral The magnitude of the force may be less than the ultimate strength of the restoration, but in this mechanical environment, the service life and various performances o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/34
Inventor 朱智敏陈孟诗刘福祥陈文川陈晨峰张晶婷林苇李萍郭玲
Owner SICHUAN UNIV
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