CN100516819C - Artificial wear-test machine for dental material - Google Patents
Artificial wear-test machine for dental material Download PDFInfo
- Publication number
- CN100516819C CN100516819C CNB200610018762XA CN200610018762A CN100516819C CN 100516819 C CN100516819 C CN 100516819C CN B200610018762X A CNB200610018762X A CN B200610018762XA CN 200610018762 A CN200610018762 A CN 200610018762A CN 100516819 C CN100516819 C CN 100516819C
- Authority
- CN
- China
- Prior art keywords
- test specimen
- folder
- shaft
- main shaft
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a simulating testing machine for manmade tooth material wear test that includes rotating vertical motion structure, main shaft, inner container, identity, upper test piece connecting, bar, upper test piece clamping device, down test piece clamping device. The upper end of the main shaft is connected to the rotating vertical motion structure that is fixed on the identity. The down end is set the upper test piece connecting bar, which has upper clamping device. The inner container has down clamping device that located on the upper of the down test clamping device. The upper test clamping device and the down test clamping device are located in the inner container. It is simple structure and could take multi group material test at one time.
Description
Technical field
The present invention relates to a kind of simulation test machine that is used for artificial dentistry fret wear test.Its simulation is under the environment of human oral cavity tribology system, features such as the masticatory movement of tooth and load thereof, frequency, amplitude, thereby study the wearing quality and the wear-resisting mechanism of artificial dental material, and can and change test parameters, the usability of Comprehensive Assessment dental material by contrast test.
Background technology
Dental material is as a kind of special functional material, in the oral cavity, to experience various effects, for example with the friction of various materials, the impact of masticatory force, erosion and the corrosion that food is starched matter and saliva, wearing and tearing will occur in the dental material surface inevitably, except its mechanical mechanics property, biocompatibility, anticorrosion performance such as anti-corrosion, its friction and wear characteristic is just causing increasing attention.
Clinical observation (in the body) and laboratory simulation (external) two class research methods are adopted in the evaluation of dental material friction and wear behavior usually.Because the clinical follow method cycle is long, expense is high, be difficult to standardization, to study and estimate the wearing quality of dental material be a kind of effective means so use in-vitro simulated abrasion tester.
Since a very long time, abroad the artificial wear-test machine for dental material of special use has been carried out pilot study and practice, obtained certain progress about the scholar
[1] ~ [4], but still have many defectives, and such as: forms of motion is single, mechanical motion principle is not realistic, and experimental result and clinical data differ greatly; Experimentation is uncontrollable, conventional efficient is lower; Experiment parameter can not be adjusted; Simulated tooth all features in the process of chewing,, therefore be difficult to use on a large scale to such an extent as to complex structure, involve great expense.
At home, also do not have special-purpose artificial wear-test machine for dental material at present, the abrasion test of artificial dental material mainly relies on adopts existing engineering friction wear testing machine
[5]Comprise ring-piece formula, pin-disc type, four ball formulas etc., because the forms of motion of these testing machines, the stress of test specimen, movement velocity, aspects such as abrasive stick spare all are different from the actual condition of human oral cavity, the gained experimental result does not often have good consistance with clinical conclusion.Therefore it was both simple to be badly in need of a kind of structure, can simulate the abrasion tester of teeth training again to greatest extent, was used for the polishing machine assessment of dental material.
List of references
[1]Cornell?J?A，Jordan?J?S，Ellis?S&Rose?E?E.A?Method?of?comparing?the?wearresistance?of?various?materials?used?for?artificial?teeth.J?Am?Dent?Assoc，1957，Vol.54：608-614
[2].Harrison?A&Lewis?T?T.The?development?of?an?abrasion?testing?machine?for?dentalmaterials.Biomed?Mater?Res，1975，Vol.9：341-353
[3].Leinfelder?K?F，Beaudreau?R?W&Mazer?R?B.An?in?vitro?device?for?predictingclinical?wear?Quint?Int，1989，Vol.20：755-761
[4].Willems?G，Celis?J?P，Lambrechts?P，Braem?M，Roos?J?R&Vanherle?G.In?vitrovibrational?wear?under?small?displacements?of?dental?materials?opposed?toannealed?chromium-steel?counterbodies，1992，Vol.8：338-344
[5]. Zheng Jing, Zhou Zhongrong, Yu Haiyang etc. the oral environment factor is to the influence of resin tooth tribological property. tribology journal .2003,23 (6): 504 ~ 508.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, artificial wear-test machine for dental material that can carry out many group material experiments simultaneously, it can simulate friction, the wearing and tearing that masticatory movement produces, and the corrosion process of food, saliva oral cavity medium.
To achieve these goals, technical scheme of the present invention is: artificial wear-test machine for dental material, it is characterized in that: it comprises the rotation vertical movement mechanism, main shaft 8, inner pressurd vessel 18, body 21, last test specimen connecting link, last test specimen folder 22, following test specimen folder 23, the upper end of main shaft 8 links to each other with the rotation vertical movement mechanism, the rotation vertical movement mechanism is fixed on the body 21, the bottom of main shaft 8 is provided with 2-20 and goes up the test specimen connecting link, the test specimen connecting link is provided with test specimen folder 22 on each, be provided with the following test specimen folder 23 identical in the inner pressurd vessel 18 with last test specimen folder number, last test specimen folder 22 is positioned at the top of test specimen folder 23 down, and last test specimen folder 22 and following test specimen folder 23 are positioned at inner pressurd vessel 18; During use, following test specimen 1 is fixed on down on the test specimen folder 23, and last test specimen 2 is fixed on the test specimen folder 22.
Described rotation vertical movement mechanism comprises control motor 5, first coupling shaft 6, active disk 7, crank 9, second coupling shaft 10, Control Shaft 11, driven disk 12, nut 13, belt 14, drive motor 15, sleeve 16 and connector 17, control motor 5 is fixedlyed connected with body 21, the output shaft of control motor 5 is provided with initiatively disk 7, initiatively disk 7 is linked to each other with an end of crank 9 by first coupling shaft 6, the other end of crank 9 is linked to each other with driven disk 12 by second coupling shaft 10, the bottom of Control Shaft 11 is provided with external thread, the bottom of Control Shaft 11 is passed sleeve 16 and is spun on the nut 13, fixedly connected with driven disk 12 in the upper end of Control Shaft 11, nut 13 is fixed in the sleeve 16, the lower surface of nut 13 is fixed with the connector 17 of U-shaped, fixedlys connected with the upper end of main shaft 8 in the lower surface of connector 17; Drive motor 15 is fixedlyed connected with body 21, and the output shaft of drive motor 15 is provided with belt pulley, and belt pulley is linked to each other with sleeve 16 by belt 14.
The described test specimen connecting link of going up mainly is made up of vertical connecting rod 3, tranverse connecting rod 4, and an end of tranverse connecting rod 4 is fixedlyed connected with the bottom of main shaft 8, and the other end of tranverse connecting rod 4 is fixedlyed connected with the upper end of vertical connecting rod 3, and the lower end of vertical connecting rod 3 presss from both sides 22 with last test specimen fixedlys connected.
Described inner pressurd vessel 18 is positioned at outer container 19, and outer container 19 is fixedlyed connected with body 21, is provided with spring 20 between inner pressurd vessel 18 and the outer container 19.
The present invention adopts the upper end of main shaft 8 to link to each other with rotation vertical movement mechanism (many forms can be arranged, and Fig. 2 is an example), rotates vertical movement mechanism and rotation and vertical movement is provided for main shaft 8, and main shaft 8 drives goes up test specimen 2 do rotation and vertical movements; With rectangular parallelepiped and circular plane (can adjust when specifically implementing) that last test specimen, following test specimen are processed into the band fillet respectively, last test specimen 2 is represented lower teeth respectively with following test specimen 1, sees Fig. 1; Last test specimen 2 and following test specimen 1 contact or be separated (by vertical movement), last test specimen 2 is rotating (by motion) down on the test specimen 1, it can simulate friction, the wearing and tearing that masticatory movement produces, comprise lower teeth cutting, roll the process of food, the contact of last lower teeth, impact and the mill process; Thereby both simulated the process that tooth rolls food, simulated the process of lapping of last lower teeth again, keep certain amount of feeding when last test specimen, following test specimen contact, in the test specimen motion process, apply the masticatory force that dynamic load is simulated tooth simultaneously by the rotation vertical movement mechanism that is connected on the main shaft.The present invention adopts test specimen folder 22 and following test specimen folder 23 to be positioned at inner pressurd vessel 18; But splendid attire food, saliva oral cavity medium (can adopt saliva, artificial saliva, water and other liquid) in the inner pressurd vessel 18, last test specimen 2 is arranged in food, saliva oral cavity medium with following test specimen 1, and the present invention can simulate the corrosion process of food, saliva oral cavity medium.
The invention has the beneficial effects as follows:, carry out the dental material artificial wear-test by simulation to oral cavity physiological movement and stress characteristic.Compare with existing other wear test machine, this testing machine more approaches the oral cavity actual condition, can realize multiple contrast experiment, precision is higher, have simultaneously simple in structure, characteristics such as testing expenses are low, experimental period is short.It both can be used for the screening of dental material and friction pair, also can be used for the fundamental research of oral cavity tribology mechanism.
The present invention relatively has with external same device: simple in structure, can carry out many group material experiments simultaneously, conventional efficient height, the low advantage that waits of expense; Relatively have with domestic similar " device ": simulation load is more near the actual situation of chewing of tooth, and is simple in structure, can carry out many group materials, the advantages that experimental precision is high simultaneously.
Description of drawings
Fig. 1 is motion principle figure of the present invention
Fig. 2 is a structural representation of the present invention
Fig. 3 is that the A of Fig. 2 is to view
Among the figure: test specimen under the 1-, the last test specimen of 2-, 3-vertical connecting rod, 4-tranverse connecting rod, 5-controls motor, 6-first coupling shaft, and 7-is disk initiatively, the 8-main shaft, the 9-crank, 10-second coupling shaft, 11-Control Shaft, the driven disk of 12-, the 13-nut, 14-belt, 15-drive motor, 16-sleeve, the 17-connector, 18-inner pressurd vessel, 19-outer container, 20-spring, the 21-body, the last test specimen folder of 22-, test specimen folder under the 23-.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
As Fig. 1, Fig. 2, shown in Figure 3, artificial wear-test machine for dental material, it comprises the rotation vertical movement mechanism, main shaft 8, inner pressurd vessel 18, body 21, last test specimen connecting link, last test specimen folder 22, following test specimen folder 23, the upper end of main shaft 8 links to each other with the rotation vertical movement mechanism, the rotation vertical movement mechanism is fixed on the body 21, the bottom of main shaft 8 is provided with 2-20 and goes up the test specimen connecting link, the test specimen connecting link is provided with test specimen folder 22 on each, be provided with the following test specimen folder 23 identical in the inner pressurd vessel 18 with last test specimen folder number, last test specimen folder 22 is positioned at the top of test specimen folder 23 down, and last test specimen folder 22 and following test specimen folder 23 are positioned at inner pressurd vessel 18; During use, following test specimen 1 is fixed on down on the test specimen folder 23, and last test specimen 2 is fixed on the test specimen folder 22.
Described rotation vertical movement mechanism comprises control motor 5, first coupling shaft 6, active disk 7, crank 9, second coupling shaft 10, Control Shaft 11, driven disk 12, nut 13, belt 14, drive motor 15, sleeve 16 and connector 17, control motor 5 is fixedlyed connected with body 21, the output shaft of control motor 5 is provided with initiatively disk 7, initiatively disk 7 is linked to each other with an end of crank 9 by first coupling shaft 6, the other end of crank 9 is linked to each other with driven disk 12 by second coupling shaft 10, the bottom of Control Shaft 11 is provided with external thread, the bottom of Control Shaft 11 is passed sleeve 16 and is spun on the nut 13, fixedly connected with driven disk 12 in the upper end of Control Shaft 11, nut 13 is fixed in the sleeve 16, the lower surface of nut 13 is fixed with the connector 17 of U-shaped, fixedlys connected with the upper end of main shaft 8 in the lower surface of connector 17; Drive motor 15 is fixedlyed connected with body 21, and the output shaft of drive motor 15 is provided with belt pulley, and belt pulley is linked to each other with sleeve 16 by belt 14.
The described test specimen connecting link of going up mainly is made up of vertical connecting rod 3, tranverse connecting rod 4, and an end of tranverse connecting rod 4 is fixedlyed connected with the bottom of main shaft 8, and the other end of tranverse connecting rod 4 is fixedlyed connected with the upper end of vertical connecting rod 3, and the lower end of vertical connecting rod 3 presss from both sides 22 with last test specimen fixedlys connected.
Described inner pressurd vessel 18 is positioned at outer container 19, and outer container 19 is fixedlyed connected with body 21, is provided with spring 20 between inner pressurd vessel 18 and the outer container 19.
Fig. 1 is the motion of friction pair (going up test specimen 2 and following test specimen 1) and the basic principle schematic of load.Teeth training when chewing for the simulation human body, on behalf of mandibular teeth, last test specimen do the feeding masticatory movement, and for realizing milling of tooth, last test specimen rotates simultaneously, and following test specimen is represented the maxillary tooth transfixion.Dynamically or static load act on the loading end between friction pair by test specimen or by means of simulation food medium.
The present invention has structurally designed to organize stations (going up test specimen folder 22 for 2-20, test specimen folder 23 under 2-20 is individual) more, both can carry out the man-to-man wear test of multisample, also can carry out the contrast wear test of the multisample under the same test conditions simultaneously.Whether for one to one, wear test can be divided into two big classes: a class is that the pairing of test specimen up and down is constant all the time, and the friction pair on each station is man-to-man, can be used for investigating the wearing character when matching between different materials according to test specimen up and down; Another kind of be multisample last test specimen successively with the following test specimen pairing of setting, what different sample test specimens were faced is identical experimental enviroment, this type of test can be used for investigating different sample materials identical to the wearing character under the mill thing material condition.Under different experimental techniques, test specimen can change by adjusting motor speed around the motion and the bottom and top feed motion of main shaft.
Among Fig. 2, drive motor 15 drives sleeve 16 rotations by belt 14, and nut 13 is fixed in the sleeve 16, and fixedlying connected with the upper end of main shaft 8 in the lower surface of connector 17, realizes the synchronous rotation of main shaft and drive motor; Simultaneously, control motor 5 drives initiatively disk 7 rotations, utilize the motion principle of crank connecting link, realize the reciprocal rotation of driven disk 12, and the reciprocal rotation of Control Shaft 11, screw by screw rod on the Control Shaft and nut 13 again, thereby the crankmotion of Control Shaft is converted to the linear reciprocating motion of connector and main shaft.As long as two rotating speed of motor in unified, the accuracy-control system, just can guarantee to rotatablely move and rectilinear motion between rapport, promptly go up test specimen and in rotary course, can " contact " just and arrive following test specimen; Because the path increment of vertical movement and the moment of generation are very little, it is little with vertical movement influence each other that drive motor 15 drives rotatablely moving of sleeve 16 by belt 14.Installed the loading of alternate load during spring is realized testing among Fig. 2 additional, also can adopt the load mode of machinery, pneumatic or servo-hydraulic, made load steadily and accurately.
According to the physiologic characteristic in oral cavity, in example, get average frequency 1Hz that human body chews cycle frequency as testing machine, get the dynamic load of sinusoidal alternating load as testing machine.The vertical feed amount of test specimen is set at 0mm ~ 20mm, and the half-sinusoid alternate load is set between 30N ~ 300N.
Claims (3)
1. artificial wear-test machine for dental material, it is characterized in that: it comprises the rotation vertical movement mechanism, main shaft (8), inner pressurd vessel (18), body (21), last test specimen connecting link, last test specimen folder (22), following test specimen folder (23), the upper end of main shaft (8) links to each other with the rotation vertical movement mechanism, the rotation vertical movement mechanism is fixed on the body (21), the bottom of main shaft (8) is provided with 2-20 and goes up the test specimen connecting link, the test specimen connecting link is provided with test specimen folder (22) on each, be provided with in the inner pressurd vessel (18) and the identical following test specimen folder (23) of last test specimen folder number, last test specimen folder (22) is positioned at the top of test specimen folder (23) down, and last test specimen folder (22) and following test specimen folder (23) are positioned at inner pressurd vessel (18); During use, following test specimen (1) is fixed on down on the test specimen folder (23), and last test specimen (2) is fixed on the test specimen folder (22);
Described rotation vertical movement mechanism comprises control motor (5), first coupling shaft (6), active disk (7), crank (9), second coupling shaft (10), Control Shaft (11), driven disk (12), nut (13), belt (14), drive motor (15), sleeve (16) and connector (17), control motor (5) is fixedlyed connected with body (21), the output shaft of control motor (5) is provided with initiatively disk (7), initiatively disk (7) is linked to each other by the end of first coupling shaft (6) with crank (9), the other end of crank (9) is linked to each other with driven disk (12) by second coupling shaft (10), the bottom of Control Shaft (11) is provided with external thread, the bottom of Control Shaft (11) is passed sleeve (16) and is spun on the nut (13), fixedly connected with driven disk (12) in the upper end of Control Shaft (11), nut (13) is fixed in the sleeve (16), the lower surface of nut (13) is fixed with the connector (17) of U-shaped, fixedlys connected with the upper end of main shaft (8) in the lower surface of connector (17); Drive motor (15) is fixedlyed connected with body (21), and the output shaft of drive motor (15) is provided with belt pulley, and belt pulley is linked to each other with sleeve (16) by belt (14).
2. artificial wear-test machine for dental material according to claim 1, it is characterized in that: the described test specimen connecting link of going up mainly is made up of vertical connecting rod (3), tranverse connecting rod (4), one end of tranverse connecting rod (4) is fixedlyed connected with the bottom of main shaft (8), the other end of tranverse connecting rod (4) is fixedlyed connected with the upper end of vertical connecting rod (3), and the lower end of vertical connecting rod (3) presss from both sides (22) with last test specimen fixedlys connected.
3. artificial wear-test machine for dental material according to claim 1, it is characterized in that: described inner pressurd vessel (18) is positioned at outer container (19), outer container (19) is fixedlyed connected with body (21), is provided with spring (20) between inner pressurd vessel (18) and the outer container (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610018762XA CN100516819C (en) | 2006-04-13 | 2006-04-13 | Artificial wear-test machine for dental material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610018762XA CN100516819C (en) | 2006-04-13 | 2006-04-13 | Artificial wear-test machine for dental material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1834613A CN1834613A (en) | 2006-09-20 |
| CN100516819C true CN100516819C (en) | 2009-07-22 |
Family
ID=37002442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610018762XA Expired - Fee Related CN100516819C (en) | 2006-04-13 | 2006-04-13 | Artificial wear-test machine for dental material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100516819C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590005B (en) * | 2012-03-29 | 2013-11-06 | 西安交通大学 | Orthodontics arch wire support groove friction abrasion experiment device |
| TW201350847A (en) * | 2012-06-13 | 2013-12-16 | sheng-nan Zhang | Compression testing device |
| CN103226911B (en) * | 2013-04-08 | 2015-02-25 | 东华大学 | Simulation tooth brushing device for abrasion resistance testing of dental prosthetic material |
| CN105259105B (en) * | 2015-10-14 | 2018-03-09 | 大连工业大学 | Apery tooth jaw fortune circulation food machinery characteristic detection device |
| CN108072582A (en) * | 2018-01-24 | 2018-05-25 | 济南大学 | Parallel artificial tooth frictional testing machine and the method for testing friction abrasion |
| CN110186801A (en) * | 2019-07-02 | 2019-08-30 | 北京大学口腔医学院 | Chewing simulating formula composite resin material abrasiometer |
| CN112504895B (en) * | 2020-12-07 | 2022-03-22 | 上海交通大学 | Device and method for evaluating wear resistance of metal additive manufacturing hard tissue in service environment |
-
2006
- 2006-04-13 CN CNB200610018762XA patent/CN100516819C/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| 多头立式泥沙磨损试验机试验研究. 李爱农，施雨湘，杜学铭，卜智翔.武汉理工大学学报（交通科学与工程版），第26卷第6期. 2002 |
| 多头立式泥沙磨损试验机试验研究. 李爱农，施雨湘，杜学铭，卜智翔.武汉理工大学学报（交通科学与工程版），第26卷第6期. 2002 * |
| 天然牙和牙科材料的摩擦学研究现状与进展. 熊菲，周新聪，李爱农，严新平.摩擦学学报，第25卷第4期. 2005 |
| 天然牙和牙科材料的摩擦学研究现状与进展. 熊菲，周新聪，李爱农，严新平.摩擦学学报，第25卷第4期. 2005 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1834613A (en) | 2006-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100516819C (en) | Artificial wear-test machine for dental material | |
| CN108051328B (en) | Multifunctional friction and wear testing machine based on pin disc friction pair and testing method thereof | |
| CN207866641U (en) | A kind of multifunction friction wear testing machine secondary based on the friction of pin disk | |
| CN101178345B (en) | Twisting or micro-moving frictional wear test device | |
| US11067489B2 (en) | Device for measuring rubber wear | |
| CN101975707B (en) | Hip joint testing machine based on steel rope drive | |
| CN103760006B (en) | A kind of artificial hip joint fatigue test device | |
| CN100593708C (en) | Rotary micromotion friction wear test method and device thereof | |
| CN103257076A (en) | Artificial hip joint dynamic fatigue wear sample clamp and tester | |
| CN100516818C (en) | Artificial joint simple simulated wear test method and its test machine | |
| CN103278411A (en) | Spherical contact type friction characteristic testing device under ultrasonic vibration | |
| CN201974359U (en) | End-surface twisting friction-wear testing machine | |
| CN104833603A (en) | Compound movement type artificial hip joint frictional wear experiment equipment | |
| CN203299067U (en) | Spherical contact-type frictional characteristic testing device under ultrasonic vibration | |
| CN209495927U (en) | It is a kind of to be axially stretched and rotating bending test machine | |
| CN207488156U (en) | One bulb disk-type friction abrasion tester | |
| CN203688158U (en) | Dynamic balance machine used for measuring balance of rotor | |
| CN102519639A (en) | Friction torque measurement apparatus of horizontal bearing | |
| CN106644798A (en) | Chewing simulation abrasion testing machine | |
| CN207675574U (en) | A kind of multifunction friction wear testing machine secondary based on the friction of ring block | |
| CN201191258Y (en) | Rotary micro friction and wear test apparatus | |
| CN107063908B (en) | A kind of magnetic environment tribological test device in controllable horizontal direction magnetic field | |
| CN105891035B (en) | A kind of friction-wear detecting apparatus of orthopaedics implantation instrument | |
| CN102525691A (en) | Air cylinder self-resetting type hip joint test machine | |
| CN107084897A (en) | A kind of single four spot contact bearing ball cunnings/rolling friction wear testing machine for driving differential two groups of disks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20110413 |