CN106644798A - Chewing simulation abrasion testing machine - Google Patents
Chewing simulation abrasion testing machine Download PDFInfo
- Publication number
- CN106644798A CN106644798A CN201710135033.0A CN201710135033A CN106644798A CN 106644798 A CN106644798 A CN 106644798A CN 201710135033 A CN201710135033 A CN 201710135033A CN 106644798 A CN106644798 A CN 106644798A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Investigating Or Analysing Biological Materials (AREA)
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
The present invention relates to a kind of test specimen fatigue wear experimental rig, particularly a kind of saliva of buccal cavity that can pass through simulation people
Environment and occlusion process are detecting the chaw simulation abrasion tester of tooth fatigue strength.
Background technology
Chewing is the requisite physiological activity of the mankind, and tooth is inherently subject to different degrees of mill in mastication processes
Damage.Tooth abrading device, is in the case of the saliva of buccal cavity environment and upper lower jaw chew of simulation people, to check tooth
Or the instrument of other artificial tooth material fatigue lives.At short notice wear extent is small for tooth or other materials, fatigue life
Generally require the abrasion of some time and could observe to draw, therefore, from from the aspect of efficiency and accuracy, abrasiometer is sent out
Bright is highly important with use.
At present, several chewing simulated fatigue-testing machines for existing at home, although simulate oral environment and tooth in fortune
Vertical loading during dynamic is ground with level, but does not account for what the temporary impact in mastication processes was produced to result of the test
Affect, also show positive pressure value without timely in process of the test.
The content of the invention
Present invention aims to can not exporting in time suffered by test specimen of existing of existing chewing simulating fatigue tester
The deficiency of the aspects such as normal pressure is improved and innovated, there is provided a kind of simple structure, easy to operate, result of the test have more reference price
The teeth chewing artificial wear-test machine of value.
The present invention includes lower jaw simulation mechanism, upper jaw simulation mechanism and saliva groove；
Described lower jaw simulation mechanism includes variable-frequency motor, power transmission shaft, cam, roller, driven member push rod, the first vibration damping dress
Put and bottom specimen stage, variable-frequency motor is fixed in frame, rotated by power transmission shaft band moving cam, electricity is changed by stepless time adjustment
Machine moment of torsion is so as to changing rate of loading.Driven member push rod lower section is hinged roller, cam energy and roller contact, and cam passes through roller band
Dynamic driven member push rod pumps, and realizes the up and down motion of people's lower jaw when chewing；First vibration absorber is arranged on bottom
In the middle of specimen stage and driven member push rod, with the instantaneous impulse force that the moment for reducing the just contact of upper and lower test specimen produces；On the specimen stage of bottom
Surface is provided with three bottom test specimen grooves being distributed uniformly and circumferentially, and test tooth, artificial tooth or other test specimens can be by trees
Fat embedded block is fixed on the test specimen groove of bottom, and is immersed in saliva.Bottom test specimen groove is ground one's teeth in sleep with diameter greater than adult
Cross-sectional diameter.
Described upper jaw simulation mechanism includes top specimen stage, the second vibration absorber, alternating current generator and output shaft, alternating current
Machine is fixed in frame by support, the output shaft connection top specimen stage of alternating current generator, between top specimen stage and output shaft
Second vibration absorber is set, and top specimen stage is provided with top test specimen groove, and top specimen stage is located on the specimen stage of bottom, top
Specimen stage is corresponding with bottom specimen stage, and top test specimen groove is completely corresponding with the quantity of bottom test specimen groove, positions and dimensions, top examination
Each top test specimen groove root on part platform is mounted on pressure sensor, with suffered in real-time monitoring teeth chewing wear process
The normal pressure for arriving.
Alternating current generator drives, and by output shaft the rotation of top specimen stage is driven, and in bottom, specimen stage pumped
Cheng Zhong, when friction is contacted with the test specimen on the specimen stage of top, the top specimen stage of rotation can approximate simulation people when chewing
Horizontal process of lapping, the stress for making test specimen more levels off to tooth chewing stress in the oral cavity；
Described saliva groove is fixed on the specimen stage of bottom, and saliva groove prevents tooth with the sealing of bottom specimen stage to contain saliva
The dry friction of between cog, makes test data closer with truth；Side-lower is provided with delivery port and facilitates saliva to change in saliva groove.
Described frame is provided with photoelectric sensor, and the horizontal level of photoelectric sensor is located at bottom specimen stage and top examination
In the middle of part platform, to detect CYCLIC LOADING number of times.
Described top test specimen groove is realizing that upper tooth also may be used while grinding with lower tooth by resin embedding block fixing teeth
Tooth is replaced by into little brush simulation to brush teeth test, top and the three of bottom groups of test specimen grooves can be replaced into different test materials with
The inspection degree of wear or life-span.
Beneficial effects of the present invention：
1st, simple structure, easy to operate, exploitativeness is strong, repeatable high.
2nd, during simulation lower jaw pumps, using the level during specimen stage rotary simulation teeth chewing of top
Grinding.
3rd, top and bottom specimen stage are equipped with three groups of test specimen grooves, can simultaneously carry out multigroup experiment.
4th, saliva groove, simulating oral cavity environment, test data reliability are set.
5th, it be furnished with piezoelectric force transducer and photoelectric sensor, the normal pressure and CYCLIC LOADING during measurable teeth chewing time
Number, embodies result of the test；Upper and lower specimen stage is respectively provided with vibration absorber, reduces temporary impact in process of lapping, makes
Result of the test has more reference value.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the A-A sectional views in Fig. 1.
Specific embodiment
Refer to shown in Fig. 1 and Fig. 2, the present invention includes lower jaw simulation mechanism, upper jaw simulation mechanism and saliva groove；
Described lower jaw simulation mechanism includes variable-frequency motor 2, power transmission shaft 3, cam 4, roller 5, driven member push rod 6, first
Vibration absorber 7 and bottom specimen stage 8, variable-frequency motor 2 is fixed in frame 1, is rotated with moving cam 4 by power transmission shaft 3, by nothing
Pole speed governing changes Motor torque so as to change rate of loading.The lower section of driven member push rod 6 is hinged roller 5, and cam 4 can connect with roller 5
Touch, cam 4 drives driven member push rod 6 to pump by roller 5, realizes the up and down motion of people's lower jaw when chewing；The
One vibration absorber 7 is arranged in the middle of bottom specimen stage 8 and driven member push rod 6, is produced with the moment for reducing the just contact of upper and lower test specimen
Instantaneous impulse force；The upper surface of bottom specimen stage 8 is provided with three bottom test specimen grooves 9 being distributed uniformly and circumferentially, test tooth,
Artificial tooth or other test specimens can be fixed on bottom test specimen groove 9 by resin embedding block, and are immersed in saliva.Bottom test specimen
The cross-sectional diameter ground one's teeth in sleep with diameter greater than adult of groove 9.
Described upper jaw simulation mechanism includes top specimen stage 11, the second vibration absorber 12, alternating current generator 13 and output shaft
14, alternating current generator 13 is fixed in frame 1 by support 19, the connection top specimen stage 11 of output shaft 14 of alternating current generator 13, on
Second vibration absorber 12 is set between portion's specimen stage 11 and output shaft 14, and top specimen stage 11 is provided with top test specimen groove 10, on
Portion's specimen stage 11 is located on bottom specimen stage 8, and top specimen stage 11 is corresponding with bottom specimen stage 8, and top test specimen groove 10 is with
The quantity of portion test specimen groove 9, positions and dimensions are corresponded to completely, and the root of each top test specimen groove 10 on top specimen stage 11 is respectively mounted
There is pressure sensor 15, with normal pressure suffered in real-time monitoring teeth chewing wear process.
Alternating current generator 13 drives, and drives top specimen stage 11 to rotate by output shaft 14, and in bottom, specimen stage 8 is up and down reciprocatingly
In motion process, when friction is contacted with the test specimen on top specimen stage 11, the top specimen stage 11 of rotation can approximate simulation people
Horizontal process of lapping when chewing, the stress for making test specimen more levels off to tooth chewing stress in the oral cavity；
Described saliva groove 17 is fixed on bottom specimen stage 8, and saliva groove 17 seals to contain saliva with bottom specimen stage 8
The dry friction between tooth is prevented, makes test data closer with truth；Side-lower is provided with the side of delivery port 18 in saliva groove 17
Just saliva is changed.
Described frame 1 is provided with photoelectric sensor 16, and the horizontal level of photoelectric sensor 16 is located at the He of bottom specimen stage 8
In the middle of top specimen stage 11, to detect CYCLIC LOADING number of times.
Described top test specimen groove 10 by resin embedding block fixing teeth while realizing that upper tooth grinds with lower tooth
Tooth can be replaced by into little brush simulation to brush teeth test, top can be replaced into different test materials from the three of bottom groups of test specimen grooves
To check the degree of wear or life-span.
Claims (2)
1. a kind of chaw simulation abrasion tester, it is characterised in that：Including lower jaw simulation mechanism, upper jaw simulation mechanism and saliva
Groove；
Described lower jaw simulation mechanism includes variable-frequency motor (2), power transmission shaft (3), cam (4), roller (5), driven member push rod
(6), the first vibration absorber (7) and bottom specimen stage (8), variable-frequency motor (2) is fixed in frame (1), by power transmission shaft (3) band
Moving cam (4) rotates, and driven member push rod (6) lower section is hinged roller (5), and cam (4) can be contacted with roller (5), and cam (4) passes through
Roller (5) drives driven member push rod (6) to pump, and realizes the up and down motion of people's lower jaw when chewing；First vibration damping is filled
(7) are put in the middle of bottom specimen stage (8) and driven member push rod (6), bottom specimen stage (8) upper surface is provided with three circumferentially
The equally distributed bottom test specimen groove (9) in direction, the cross-sectional diameter ground one's teeth in sleep with diameter greater than adult of bottom test specimen groove (9)；
Described upper jaw simulation mechanism includes top specimen stage (11), the second vibration absorber (12), alternating current generator (13) and output
Axle (14), alternating current generator (13) is fixed in frame (1) by support (19), in output shaft (14) connection of alternating current generator (13)
Portion's specimen stage (11), arranges the second vibration absorber (12), top specimen stage between top specimen stage (11) and output shaft (14)
(11) be provided with top test specimen groove (10), top specimen stage (11) on bottom specimen stage (8), top specimen stage (11) with
Bottom specimen stage (8) correspondence, top test specimen groove (10) is completely corresponding with the quantity of bottom test specimen groove (9), positions and dimensions, top
Each top test specimen groove (10) root on specimen stage (11) is mounted on pressure sensor (15)；
Described saliva groove (17) is fixed on bottom specimen stage (8), and saliva groove (17) is sealed with bottom specimen stage (8)；Saliva
The interior side-lower of groove (17) is provided with delivery port (18).
2. a kind of chaw simulation abrasion tester according to claim 1, it is characterised in that：Set in described frame (1)
The horizontal level for having photoelectric sensor (16), photoelectric sensor (16) is located in bottom specimen stage (8) and top specimen stage (11)
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135033.0A CN106644798A (en) | 2017-03-09 | 2017-03-09 | Chewing simulation abrasion testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135033.0A CN106644798A (en) | 2017-03-09 | 2017-03-09 | Chewing simulation abrasion testing machine |
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| Publication Number | Publication Date |
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| CN106644798A true CN106644798A (en) | 2017-05-10 |
Family
ID=58847145
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710135033.0A Pending CN106644798A (en) | 2017-03-09 | 2017-03-09 | Chewing simulation abrasion testing machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421829A (en) * | 2017-09-20 | 2017-12-01 | 江南大学 | The method that soft sweets physical property changes in bionical detection means and detection mastication processes |
| CN107571239A (en) * | 2017-08-29 | 2018-01-12 | 电子科技大学 | A kind of six degree of freedom masticatory force control and monitoring system |
| CN108132185A (en) * | 2018-02-28 | 2018-06-08 | 广州市健齿生物科技有限公司 | A kind of experiment porch and experimental method for personalized tooth implant performance detection |
| CN108254458A (en) * | 2017-12-26 | 2018-07-06 | 东华大学 | Textile sense of taste style measuring device and measuring method |
| CN109813649A (en) * | 2019-03-12 | 2019-05-28 | 江南大学 | A kind of chewing bionic device and its application |
| CN110186801A (en) * | 2019-07-02 | 2019-08-30 | 北京大学口腔医学院 | Chewing simulating formula composite resin material abrasiometer |
| WO2021000529A1 (en) * | 2019-07-02 | 2021-01-07 | 北京大学口腔医学院 | Chewing-mimicking-type composite resin material abrasion tester and operating method therefor |
| CN117347217A (en) * | 2023-12-05 | 2024-01-05 | 深圳玉汝成口腔材料有限公司 | Denture durability detection method and denture detection device |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107571239A (en) * | 2017-08-29 | 2018-01-12 | 电子科技大学 | A kind of six degree of freedom masticatory force control and monitoring system |
| CN107571239B (en) * | 2017-08-29 | 2020-11-17 | 电子科技大学 | Six-degree-of-freedom chewing force control and monitoring system |
| CN107421829A (en) * | 2017-09-20 | 2017-12-01 | 江南大学 | The method that soft sweets physical property changes in bionical detection means and detection mastication processes |
| CN108254458B (en) * | 2017-12-26 | 2020-08-11 | 东华大学 | Textile taste style measuring device and measuring method |
| CN108254458A (en) * | 2017-12-26 | 2018-07-06 | 东华大学 | Textile sense of taste style measuring device and measuring method |
| CN108132185A (en) * | 2018-02-28 | 2018-06-08 | 广州市健齿生物科技有限公司 | A kind of experiment porch and experimental method for personalized tooth implant performance detection |
| CN108132185B (en) * | 2018-02-28 | 2023-10-20 | 广东健齿生物科技有限公司 | Experiment platform and experiment method for detecting performance of personalized dental implant |
| CN109813649A (en) * | 2019-03-12 | 2019-05-28 | 江南大学 | A kind of chewing bionic device and its application |
| CN109813649B (en) * | 2019-03-12 | 2024-05-28 | 江南大学 | Chewing bionic device and application thereof |
| CN110186801A (en) * | 2019-07-02 | 2019-08-30 | 北京大学口腔医学院 | Chewing simulating formula composite resin material abrasiometer |
| WO2021000529A1 (en) * | 2019-07-02 | 2021-01-07 | 北京大学口腔医学院 | Chewing-mimicking-type composite resin material abrasion tester and operating method therefor |
| DE112019000100B4 (en) | 2019-07-02 | 2023-05-17 | Peking University School And Hospital Of Stomatology | Abrasion testing machine for testing a composite resin material by chewing simulation and its operation method |
| CN117347217A (en) * | 2023-12-05 | 2024-01-05 | 深圳玉汝成口腔材料有限公司 | Denture durability detection method and denture detection device |
| CN117347217B (en) * | 2023-12-05 | 2024-02-13 | 深圳玉汝成口腔材料有限公司 | Denture durability detection method and denture detection device |
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