CN201293749Y - Chaw simulation cyclic loading machine for dentistry - Google Patents
Chaw simulation cyclic loading machine for dentistry Download PDFInfo
- Publication number
- CN201293749Y CN201293749Y CNU2008202231072U CN200820223107U CN201293749Y CN 201293749 Y CN201293749 Y CN 201293749Y CN U2008202231072 U CNU2008202231072 U CN U2008202231072U CN 200820223107 U CN200820223107 U CN 200820223107U CN 201293749 Y CN201293749 Y CN 201293749Y
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Abstract
The utility model discloses a chewing simulation cyclic loading machine for dentals, which is characterized in that a movable plate (19) is sheathed on an upper column (21) via a copper sliding sleeve (20); the movable plate is contacted with a cam (16) via a fixed pulley (18); the fixed pulley is fixed on a pulley support (17); the pulley support is fixed on the movable plate; a motor (9) and a speed reducer (8) are fixed on the cam support (15); the movable plate is fixed with a cup column (6) containing a guide cup (5) which loads a test piece; the movable plate is connected with a bottom plate (13) and a shock absorber (12) via a lower column (14); the movable plate is connected with a counter (11) via a connecting rod (7); the counter and the cam support are fixed on the bottom plate; an upper plate (22) is fixed on the upper column (21) and is provided with a plurality of loading heads (4) fit with the guide cup; and the loading heads penetrate through bolts (1) and gaskets (3) to be fixed on the upper plate via nuts (2).
Description
Technical field
The utility model relates to a kind of chaw simulation circulation load application machine for dentistry, belongs to the subtest equipment of oral cavity material and dummy.
Background technology
Material can destroy down at circulation (alternation) stress, and the suffered stress of material is often much smaller than its ultimate strength at this moment, even less than its elastic strength, this phenomenon is called fatigue.According to the definition of International Standards Organization (InternationalStandard Organization) to fatigue, no matter the feature that stress, the strain of repeatability causes material to change changes alligatoring or fracture fully, all is called fatigue.
Be arranged in the tooth body and the dummy in oral cavity, when masticatory movement, will be circulated, alternation
Power.Though oral cavity
The size of power may be less than the ultimate strength of dummy, but in this mechanical environment, may influence the serviceable life and the various performance of reparation owing to fatigue phenomenon.Therefore, when carrying out experiment in vitro, just need simulate intraoral mechanical environment by the mode of CYCLIC LOADING.
Fatigue study in the dentistry in the past is confined to material or planting body aspect more, the instrument that uses also mostly is MTS or Instron material experiment-machine, these large test machines cost an arm and a leg, be difficult in oral cavity material and dummy test, be popularized, and these large test machines are not to design for the test of oral cavity material specially, inconvenience are arranged using and debug more.Though the domestic appearance (Wu Shun that the oral cavity material fatigue experimental machine is also arranged, execute and take root, Song Yingliang etc. the development and the Preliminary Applications of electromagnetic type dental material fatigue experimental machine. The Fourth Military Medical University's journal, 2002,23 (3): 260), and relevant report (Li Mingyong, the Ma Xuanxiang of the fatigue tester of dummy, Li Yulong etc. the development of mouth mending material test machine fatigue lifetime and demarcation ()---instrument development. health care equipment .2004,6:90-91).But these instruments all can only be tested single test specimen, and efficient is low, and comparability is poor between group, and tested object is single relatively limited, can not satisfy the demand of existing oral cavity material and dummy experiment in vitro.And these machines are fractured into observation station to be loaded into usually, but usually for the research of dummy, care be not the destruction of material, but some performance change in using, this just needs can Control Circulation to load the carrier aircraft that adds of number of times.Can simulate dummy uses a period of time in the oral cavity situation by the CYCLIC LOADING of certain number of times.
Summary of the invention
The purpose of this utility model is to provide a kind of chaw simulation circulation load application machine for dentistry at the deficiencies in the prior art, is characterized in using the situation of a period of time by the CYCLIC LOADING simulation dummy of certain number of times in the oral cavity.
The purpose of this utility model is realized by following technical measures:
A kind of chaw simulation circulation load application machine for dentistry, it is characterized in that this portable plate that adds in the carrier aircraft is enclosed within on the upper pillar stand by the copper sliding sleeve, portable plate contacts with cam by fixed pulley, fixed pulley is fixed on the pulley bracket, pulley bracket is fixed on the portable plate, cam, motor and speed reduction unit are fixed on the Cam rest, fixing the cup post on the portable plate, fill the cup of leading that loads test specimen in the cup post, portable plate is connected with vibroshock with base plate by lower supporting rod, portable plate is connected with counter by connecting rod, counter and Cam rest are fixed on the base plate, upper plate is fixed in upper supporting column, establish on the upper plate a plurality of with lead the loading head that is complementary of cup, loading head is fixed on the upper plate by nut by bolt and packing ring.
Lead and place test specimen in the cup, test specimen becomes to be fit to lead the shape of glass internal diameter by the embedding of resin embedding piece, what resin embedding piece and test specimen were housed leads glass holder in the cup post, lead cup bottom and be positioned at glass spring of post central authorities and contact, push rod passes leads cup bottom reservation hole, stretch into the spring central void, the cup post is fixed on the portable plate by nut.
Pore diameter on the upper plate is than the diameter big 3-5mm of loading head by upper board part, make that loading head is can be on surface level left and right to be moved, make the position of loading head upper and lower mobile by regulating hexagonal nut, be beneficial to fully contacting of loading head and test specimen to vertical direction.
Portable plate is divided into upper and lower pillar hole, test specimen cup post hole and fixed pulley assembly fixed area.
The utlity model has following advantage:
1. this CYCLIC LOADING machine can load a plurality of test specimens simultaneously.Can save experimental period, again can be when designing in groups comparability between the increase group, be a kind of high efficiency carrier aircraft that adds.
2. this CYCLIC LOADING machine can be used for multiple oral cavity fixed restoration, comprises plastics, metal, porcelain, all-ceramic crown, and the mensuration of the fatigue lifetime of dummy such as inlay, post and core crown.Supporting embedding mould is not limited to the form of dummy.
3. the loading frequency of this CYCLIC LOADING machine is 2Hz, loads p.s. 2 times, and cycle period contacts test specimen with loading head with test specimen and meets physiological status.
4. change spring according to the needs of dummy, can provide multiple loading force value according to the elasticity coefficient difference.The power value is the power of alternation during loading, meets the situation of snap-in force under the physiological status.
5. loading head can be done certain adjusting in vertical, horizontal direction, guarantees that load(ing) point is positioned at the position of expection.
6. loading head can take off, and customizable multiple loading head pattern is changed at any time by the needs of experiment.
7. adopt screw-nut that mechanical counter is fixed on the base plate, counting is easy to change after counter damages accurately and reliably.
Description of drawings
Fig. 1 is the chaw simulation circulation load application machine for dentistry structural representation
Fig. 2 is for leading the cup structure synoptic diagram
Fig. 3 is the portable plate planimetric map
1-loading head bolt 2-hexagonal nut 3-packing ring 4-loading head
5-leads a glass 6-cup post 7-connecting rod 8-speed reduction unit
9-motor 10-switch 11-counter 12-beam
13-base plate 14-lower supporting rod 15-Cam rest 16-cam copper
17-pulley bracket 18-fixed pulley 19-portable plate 20-sliding sleeve
21-upper supporting column 22-upper plate 23-test specimen 24-embedded block
25-push rod 26-spring 27-hold-down nut 28-test specimen cup post hole
29-is pillar hole 30-fixed pulley assembly fixed area up and down
Embodiment
Below by embodiment the utility model is specifically described, be necessary to be pointed out that at this present embodiment only is used for the utility model is further specified, but can not be interpreted as restriction the utility model protection domain.The person skilled in the art in this field can make some nonessential improvement and adjustment according to above-mentioned content of the present utility model.
Embodiment
As shown in Figure 1, portable plate 19 in the chaw simulation circulation load application machine for dentistry is enclosed within on the upper pillar stand 21 by copper sliding sleeve 20, portable plate contacts with cam 16 by fixed pulley 18, fixed pulley is fixed on the pulley bracket 17, pulley bracket is fixed on the portable plate, cam, motor 9 and speed reduction unit 8 are fixed on the Cam rest 15, fixing cup post 6 on the portable plate, cup fill in the post load test specimen lead cup 5, portable plate is connected with vibroshock 12 with base plate 13 by lower supporting rod 14, portable plate is connected with counter 11 by connecting rod 7, counter and Cam rest are fixed on the base plate, upper plate 22 is fixed in upper supporting column 21, establish on the upper plate a plurality of with lead the loading head 4 that is complementary of cup, loading head is fixed on the upper plate by nut 2 by bolt 1 and packing ring 3.
As shown in Figure 2, lead and place test specimen 23 in the cup 5, test specimen 23 becomes to be fit to lead the shape of glass internal diameter by 24 embeddings of resin embedding piece, what resin embedding piece and test specimen were housed leads glass holder in cup post 6, lead cup bottom and be positioned at glass spring of post central authorities 26 and contact, push rod 25 passes leads cup bottom reservation hole, stretches into the spring central void, and a cup post is fixed on the portable plate by nut 27.
Pore diameter on the upper plate 22 can move loading head than the big 3-5mm of diameter of loading head by upper board part on surface level, by regulating hexagonal nut 2 position of loading head is moved to vertical direction.Be beneficial to fully contacting of loading head and test specimen.
As shown in Figure 3, portable plate is divided into upper and lower pillar hole 29, test specimen cup post hole 28 and fixed pulley assembly fixed area 30.
The utility model is achieved in that
1. unclamp nut 2 on the loading head with spanner, take off the packing ring 3 on the loading head, take off loading head;
2. the spring of demarcating 26 is put into glass post central authorities, push rod 25 is put into led cup 5, will lead cup again and place in glass post 6, make and lead the cup bottom and contact the space of push rod insertion spring central authorities with the upper surface of spring.Then tested test specimen 23 is used resin embedding, and tested test specimen and resin embedding piece 24 put into lead in the cup 5;
3. load onto loading head 4, calculate the compression mileage that needs, regulate the vertical height of loading head by the elasticity coefficient of power value and spring, regulate the horizontal level of loading head again according to the loading contact point of needs on the test specimen, put packing ring 3, fastening nut 2 is fixed on loading head on the upper plate;
4. counter 11 makes zero.Regulate counting connecting rod 7 positions, tighten respective nut, and fixedly connected with portable plate;
5. on two root posts He in the sliding sleeve, inject lubricating oil;
6. connect external power supply, turn on the power switch, add carrier aircraft and bring into operation, record data;
7. after loading was finished, powered-down unclamped the nut on the loading head, take off the packing ring on the loading head, can unload loading head, take out and load good test specimen, if when test specimen can't take out smoothly, can take out earlier and lead cup, can release test specimen smoothly by the extrapolation push rod again.
Claims (4)
1, a kind of chaw simulation circulation load application machine for dentistry, it is characterized in that this portable plate (19) that adds in the carrier aircraft is enclosed within on the upper pillar stand (21) by copper sliding sleeve (20), portable plate contacts with cam (16) by fixed pulley (18), fixed pulley is fixed on the pulley bracket (17), pulley bracket is fixed on the portable plate, cam, motor (9) and speed reduction unit (8) are fixed on the Cam rest (15), fixing cup post (6) on the portable plate, fill lead glass (5) of loading test specimen in the cup post, portable plate is connected with vibroshock (12) with base plate (13) by lower supporting rod (14), portable plate is connected with counter (11) by connecting rod (7), counter and Cam rest are fixed on the base plate, upper plate (22) is fixed in upper supporting column (21), establish on the upper plate a plurality of with lead the loading head (4) that is complementary of cup, loading head is fixed on the upper plate by nut (2) by bolt (1) and packing ring (3).
2, dentistry chaw simulation CYCLIC LOADING machine according to claim 1, it is characterized in that leading and place test specimen (23) in the cup (5), test specimen becomes to be fit to lead the shape of glass internal diameter by resin embedding piece (24) embedding, what resin embedding piece and test specimen were housed leads glass holder in cup post (6), lead cup bottom and be positioned at glass spring of post central authorities (26) and contact, push rod (25) passes leads cup bottom reservation hole, stretches into the spring central void, and a cup post is fixed on the portable plate by nut (27).
3, dentistry chaw simulation CYCLIC LOADING machine according to claim 1, it is characterized in that the pore diameter on the upper plate (22) passes through the big 3-5mm of diameter of upper board part than loading head, make that loading head is can be on surface level left and right to be moved, make the position of loading head upper and lower mobile by regulating hexagonal nut (2), be beneficial to fully contacting of loading head and test specimen to vertical direction.
4, dentistry chaw simulation CYCLIC LOADING machine according to claim 1 is characterized in that portable plate is divided into upper and lower pillar hole (29), test specimen cup post hole (28) and fixed pulley assembly fixed area (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202231072U CN201293749Y (en) | 2008-12-04 | 2008-12-04 | Chaw simulation cyclic loading machine for dentistry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202231072U CN201293749Y (en) | 2008-12-04 | 2008-12-04 | Chaw simulation cyclic loading machine for dentistry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201293749Y true CN201293749Y (en) | 2009-08-19 |
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ID=41007232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202231072U Expired - Fee Related CN201293749Y (en) | 2008-12-04 | 2008-12-04 | Chaw simulation cyclic loading machine for dentistry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201293749Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471944A (en) * | 2013-09-13 | 2013-12-25 | 中国人民解放军第四军医大学 | Dental prosthesis fatigue testing machine |
| CN106644798A (en) * | 2017-03-09 | 2017-05-10 | 吉林大学 | Chewing simulation abrasion testing machine |
-
2008
- 2008-12-04 CN CNU2008202231072U patent/CN201293749Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471944A (en) * | 2013-09-13 | 2013-12-25 | 中国人民解放军第四军医大学 | Dental prosthesis fatigue testing machine |
| CN103471944B (en) * | 2013-09-13 | 2016-08-10 | 中国人民解放军第四军医大学 | Mouth mending material fatigue machine |
| CN106644798A (en) * | 2017-03-09 | 2017-05-10 | 吉林大学 | Chewing simulation abrasion testing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20090819 Termination date: 20111204 |