CN203506894U - Movement of dental high-speed turbine handpiece - Google Patents
Movement of dental high-speed turbine handpiece Download PDFInfo
- Publication number
- CN203506894U CN203506894U CN201320604614.1U CN201320604614U CN203506894U CN 203506894 U CN203506894 U CN 203506894U CN 201320604614 U CN201320604614 U CN 201320604614U CN 203506894 U CN203506894 U CN 203506894U
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- Prior art keywords
- outer ring
- described bearing
- high speed
- mobile phone
- bearing
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- Expired - Fee Related
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Abstract
The utility model discloses a movement of a dental high-speed turbine handpiece, which comprises a rotating shaft, a wind wheel arranged on the rotating shaft in a sleeve manner, and two bearings. The bearing comprises an outer ring, an inner ring, a holder, and a plurality of balls kept in peripheral direction of the holder, wherein the inner peripheral face of the outer ring and the outer peripheral face of the inner ring both are provided with raceway surfaces, and the upper part of the outer ring of the bearing is provided with a platform stretching inwards. The movement of the dental high-speed turbine handpiece, provided by the utility model, is not easy to damage, is simple to assemble and has a long service life.
Description
Technical field
This utility model relates to dental handpiece, is specifically related to a kind of high speed dental turbo mobile phone core.
Background technology
High speed dental turbo mobile phone is a kind of high speed rotating with air stream drives cutting medical apparatus and instruments, does not turn 200,000 revs/min～600,000 revs/min of scooters not etc., and it is mainly used for cutting tooth body, prepares tooth cavity, prepares thread form and finishing thread form etc.
High speed dental turbo mobile phone is mainly comprised of with the head being connected with handle handle, handle inside is provided with water inlet pipe, air inlet pipe and return gas channel, head comprises shell and interior movement thereof, movement comprises rotating shaft, be sleeved on wind wheel and 2 bearings in rotating shaft, 2 described bearings lay respectively at the two ends of wind wheel.In the composition of existing dental handpiece movement, described bearing comprises outer ring, inner ring, retainer and is arranged at the some balls on retainer circumferencial direction, on the inner peripheral surface of described outer ring and the outer peripheral face of inner ring, all there is roller surface, inner ring and outer ring are hollow cylinder shape, and retainer is arranged between inner ring and outer ring.
The bearing that existing high speed dental turbo mobile phone core is used, carries out proofing dust and protecting according to whether to ball and is divided into two kinds, open type bearing and combination type bearing with cover.The outside of the retainer of open type bearing between inner ring and outer ring does not arrange dust cap, and the foreign material that some granules are larger can be inhaled into retainer the inside, cause ball rotate dumb, be abraded damage etc., thereby shortened the service life of bearing.Combination type bearing with cover is between inner ring and outer ring, above retainer, be provided with independently dust cap, can prevent that foreign material that some granules are larger from entering retainer inside and touching ball, avoid retainer and ball to damage, extended the service life of bearing, but between the bearing cap of this structure and inside and outside circle, still will reserve larger gap, otherwise be difficult to assembling, and lid can rub with inner ring when high speed dental turbo mobile phone high speed rotating is worked.The assembling trouble of combination type bearing with cover, high to assembly crewman's technical ability requirement, production efficiency is low.In addition, the ball using in existing bearing is made for metal, because the each use of high speed dental turbo mobile phone all will be passed through autoclave sterilization, in use steam can often be inhaled into bearing inside, after metal balls is repeatedly used, the ball abrasion of easily getting rusty, has shortened service life of high speed dental turbo mobile phone.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of not fragile, and assembling is simple, the high speed dental turbo mobile phone core of longer service life.
For solving the problems of the technologies described above, this utility model by the following technical solutions:
A kind of high speed dental turbo mobile phone core, comprise rotating shaft, be sleeved on wind wheel and 2 bearings in rotating shaft, described bearing comprises outer ring, inner ring retainer and is arranged at the some balls on retainer circumferencial direction, on the inner peripheral surface of outer ring and the outer peripheral face of inner ring, all there is roller surface, it is characterized in that: the top, outer ring of described bearing is provided with extendable platform to the inside.
In technique scheme, the outer ring of the described bearing to the inside internal diameter after extendable platform is less than the external diameter of described bearing inner race.
In technique scheme, the ball of described bearing adopts hard ceramic material to make.
Adopt a kind of high speed dental turbo mobile phone core of technique scheme, the extendable platform to the inside that the bearing outer ring top of using in movement arranges, has played the effect of dust cap, do not need to use independent dust cap, its dustproof gap is very little, and dust-proof effect is better, longer service life; Assembly process reduces, and assembling process is simpler than the assembling of combination type bearing with cover; In bearing, use hard ceramic balls, the damage that is difficult for getting rusty, can increase the service life greatly.
Accompanying drawing explanation
Fig. 1 is the cut-away view of a kind of embodiment middle (center) bearing of the present utility model.
Number in the figure is: 1 outer ring; 2 inner rings; 3 retainers; 4 balls.
The specific embodiment
A kind of high speed dental turbo mobile phone core described in the utility model, comprise rotating shaft, be sleeved on wind wheel and 2 bearings in rotating shaft, described bearing as shown in Figure 1, comprise outer ring 1, inner ring 2, retainer 3 and be arranged at the some balls 4 on retainer 3 circumferencial directions, on the inner peripheral surface of outer ring 1 and the outer peripheral face of inner ring 2, all there is roller surface, the top, outer ring of described bearing is provided with extendable platform to the inside, the described outer ring to the inside internal diameter after extendable platform is less than the external diameter of described bearing inner race, and the ball of described bearing adopts hard ceramic material to make.
Claims (3)
1. a high speed dental turbo mobile phone core, comprise rotating shaft, be sleeved on wind wheel and 2 bearings in rotating shaft, described bearing comprises outer ring, inner ring, retainer and is arranged at the some balls on retainer circumferencial direction, on the inner peripheral surface of outer ring and the outer peripheral face of inner ring, all there is roller surface, it is characterized in that: the top, outer ring of described bearing is provided with the platform extending to the inside.
2. a kind of high speed dental turbo mobile phone core according to claim 1, is characterized in that: the outer ring of the described bearing to the inside internal diameter after extendable platform is less than the external diameter of described bearing inner race.
3. a kind of high speed dental turbo mobile phone core according to claim 2, is characterized in that: the ball of described bearing adopts hard ceramic material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604614.1U CN203506894U (en) | 2013-09-29 | 2013-09-29 | Movement of dental high-speed turbine handpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604614.1U CN203506894U (en) | 2013-09-29 | 2013-09-29 | Movement of dental high-speed turbine handpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203506894U true CN203506894U (en) | 2014-04-02 |
Family
ID=50365883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320604614.1U Expired - Fee Related CN203506894U (en) | 2013-09-29 | 2013-09-29 | Movement of dental high-speed turbine handpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203506894U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103462702A (en) * | 2013-09-29 | 2013-12-25 | 桂林市啄木鸟医疗器械有限公司 | High-speed turbine handpiece movement for dental department |
| CN104685242A (en) * | 2012-07-09 | 2015-06-03 | 舍弗勒技术股份两合公司 | Rolling bearing for turbocharger |
-
2013
- 2013-09-29 CN CN201320604614.1U patent/CN203506894U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104685242A (en) * | 2012-07-09 | 2015-06-03 | 舍弗勒技术股份两合公司 | Rolling bearing for turbocharger |
| US9523389B2 (en) | 2012-07-09 | 2016-12-20 | Schaeffler Technologies AG & Co. KG | Rolling bearing for a turbocharger |
| CN103462702A (en) * | 2013-09-29 | 2013-12-25 | 桂林市啄木鸟医疗器械有限公司 | High-speed turbine handpiece movement for dental department |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20190929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |