CN206129875U - Miniature speed bearing of dental handpiece is exclusively used in - Google Patents
Miniature speed bearing of dental handpiece is exclusively used in Download PDFInfo
- Publication number
- CN206129875U CN206129875U CN201620529250.9U CN201620529250U CN206129875U CN 206129875 U CN206129875 U CN 206129875U CN 201620529250 U CN201620529250 U CN 201620529250U CN 206129875 U CN206129875 U CN 206129875U
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- China
- Prior art keywords
- bearing
- dental handpiece
- exclusively used
- housing
- choke
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- Expired - Fee Related
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model provides a miniature speed bearing of dental handpiece is exclusively used in, includes the bearing, the bearing is equipped with the bearing housing outward, the bearing housing is including covering the choke portion at the bearing up end, choke portion middle part be equipped with with the bearing on the pore pair through -hole of answering, the close -fitting is in the connecting portion of bearing side, an extension for fixing the dental handpiece aircraft nose to the book that turns up. The utility model discloses a bearing housing forms the flange bearing and bearing housing simple structure can directly be made by the punching press, and fixed effect, operation effect are splendid, and the sealed effect that the bearing housing played is splendid, and the lubes does not have obvious excessive phenomenon during the use, and the bearing housing can steadily relax the bearing at the expend with heat and contract with cold of in -process that turns round for the bearing is the steady running inside dental handpiece, and on the other hand has increased the bearing wall thickness, and double -deck structure can play amortization absorbing effect, the utility model discloses very big promotion dental handpiece result of use and safety and sanitation degree.
Description
Technical field
The utility model is related to the bearing on a kind of dental handpiece.
Background technology
Dental handpiece small volume miniature bearing in the inner is one kind of the manufacture difficulty maximum of most significant end in bearing, is made
Make the height of the miniature bearing required precision, technology difficulty big strong influence dental handpiece overall production cost.Flange
Bearing has and install well fixed effect, but miniature flange bearing processing technology processes increasingly complex with respect to miniature bearing.
Many flange bearing processing methods are disclosed in Chinese patent storehouse, such as Publication No. " 101219522 " is entitled " a kind of
Refer in the grinding processing method of flange bearing top circle and end face " " using flange bearing outer ring and end face substep linkage motion cutting side
The extremely various complicated method of the processing steps such as method ".Further, since dental handpiece when in use air pressure inside is high, gas can be from
It is excessive at bearing, the greasing substance in bearing can be taken away during overflowing outside, and when in use these greasing substances can overflow
Go out to oral cavity, human body is caused damage；On the other hand, the excessive of greasing substance can cause bearing to be dry grinded, and rapid deterioration bearing makes
Obtain bearing temperature quickly to rise, for the service efficiency of dental handpiece produces strong influence.At present setting is there is also on the market
The bearing of bearing side cover, but to there is gap excessive for these bearings, and internal gas flow is easy to from gap flow out and take away lubricator
Matter, in addition bearing cap required precision is high, installs inconvenience, thus affects production efficiency.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides one kind and is exclusively used in dental handpiece miniature high-speed axle
Hold.
The present invention solves the technical scheme of its technical problem：One kind is exclusively used in dental handpiece miniature high-speed bearing, including
Bearing, the bearing is externally provided with bearing holder (housing, cover), and the bearing holder (housing, cover) includes being covered in the choke portion of bearing upper surface, in the choke portion
Portion is provided with through hole corresponding with the hole on bearing；
Connecting portion of the close-fitting in the bearing side；
For being fixed on the extension of the outside turnover of dental handpiece heads.Effectively intercept after being arranged using bearing holder (housing, cover) inside and outside
Air-flow prevents greasing substance excessive.As long as the through-hole diameter on bearing holder (housing, cover) is less than bearing inner race diameter and more than the diameter of middle part axle
.
Further, the bearing includes bearing outer ring, bearing inner race, ball, and the bearing outer ring inwall is provided with ball grooves,
The bearing inner race outer wall is provided with ball grooves, and also including the retainer of annular, the retainer is located at the bearing inner race and axle
Between bearing outer-ring, the retainer upper surface is evenly equipped with the fluting for accommodating ball.
Further, the retainer is arranged on bearing side, and bearing opposite side is provided with silicone grease cushion rubber.Silicone grease cushion rubber is using cold
The silicone grease glue for freezing solidification is made, and the gluey greasing substance of formation is melted after installation and causes to install more convenient.
Further, the choke portion extends horizontally to bearing inner race side, be completely covered bearing inner race and bearing outer ring it
Between space.Space is completely covered be greatly improved isolation sealing effectiveness prevent greasing substance excessive and small gap
The operating of bearing is can guarantee that again.
Further, also including wind-retarding plate, the wind-retarding plate lid is located at bearing opposite side, the wind-retarding plate and the bearing holder (housing, cover)
Coordinate and cause to form approximate closed space between bearing inner race and bearing outer ring.Using dual face seals, tooth can be effectively lifted
Section's interior of mobile phone air pressure prevents internal lubrication material excessive to directly impacting in bearing, further.
Further, the wind-retarding plate is the choke bowl that lid is located at bearing opposite side, and the choke bowl is matched somebody with somebody with the bearing holder (housing, cover)
Close parcel bearing.Bearing is almost intercepted completely, be significantly reduced lubrication silicone grease spill and leakage, improve bearing service life and
Rotation efficiency.
Further, also including O-ring, the O-ring is located between the connecting portion of the bearing holder (housing, cover) and extended spot, the axle
The connecting portion of bearing sleeve is close to arrange with the circular arc of extended spot with the O shapes circle.Strengthen sealing so that at dental handpiece inside
In air-tight state, prevent internal gas flow from leaking, improve internal gas flow transformation efficiency and cause internal gas flow operating more rule.
Further, the O-ring center is centrally located at same level with bearing ball.O-ring center and bearing ball
It is centrally located at same level so that bearing ball plane of movement is consistent with fixed pan so that bearing is in the course of the work more
Plus it is stable.
It is further to prevent bearing expanded by heating during long-time runs up relative with bearing holder (housing, cover) inclined so as to cause
Move so that position of bearings produces skew, the choke portion and the connecting portion junction adopt arc transition, the choke portion with
There is space with bearing in connecting portion junction；The connecting portion adopts arc transition with extension.Excessively cause to connect using circular arc
The perfect laminating in contact portion position, in choke portion and connecting portion junction the expansion space that space provides bearing is arranged, and prevents bearing from producing
Relative skew.
The present invention will install retainer and then puts silicone grease glue after bearing inner race, bearing outer ring, ball assembling when in use
Circle, installs bearing holder (housing, cover) and installs O shape circles outside bearing holder (housing, cover) again, and may be installed on head after selective installation wind-retarding plate makes
With.
The beneficial effects of the utility model are：Flange bearing is formed using bearing holder (housing, cover) and bearing housing structure simply can be direct
It is made up of punching press, fixed effect, running effect are splendid, the sealing effectiveness that bearing holder (housing, cover) is played is splendid, and greasing substance is without bright when using
Show excessive phenomenon, bearing holder (housing, cover) can steadily relax bearing expanding with heat and contract with cold in operation process so that bearing is in dental handpiece
Portion's steady running, on the other hand increased bearing wall thickness, and double-deck structure can play the effect of silencing and damping；The utility model
It is greatly improved dental handpiece using effect and safety and sanitation degree.
Description of the drawings
Fig. 1 is the utility model stereogram.
Fig. 2 is the utility model sectional view.
Fig. 3 is the utility model wind-retarding plate another kind structural representation.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As illustrated in fig. 1 and 2：One kind is exclusively used in dental handpiece miniature high-speed bearing, including bearing, and the bearing is externally provided with axle
Bearing sleeve 1, the bearing holder (housing, cover) 1 includes being covered in the choke portion 2 of bearing upper surface, and the choke portion middle part is provided with and the hole on bearing
Corresponding through hole；
Extension of the close-fitting in the connecting portion 4 of the bearing side and for being fixed on the outside turnover of dental handpiece heads
Portion 3.Inside and outside air-flow is effectively intercepted after being arranged using bearing holder (housing, cover) 1 prevents greasing substance excessive.The diameter of through hole 4 on bearing holder (housing, cover) 1 is only
It is less than bearing inner race diameter and more than the diameter of middle part axle.
In the present embodiment, the bearing includes bearing outer ring 5, bearing inner race 6, ball 7, and the inwall of the bearing outer ring 5 sets
There are ball grooves, the outer wall of the bearing inner race 6 is provided with ball grooves, and also including the retainer 8 of annular, the retainer 8 is located at described
Between bearing inner race 5 and bearing outer ring 6, the upper surface of the retainer 8 is evenly equipped with the fluting 9 for accommodating ball 7.
In the present embodiment, the retainer 8 is arranged on bearing side, and bearing opposite side is provided with silicone grease cushion rubber 10.Silicone grease glue
Circle 10 is made using the silicone grease glue of freezing solidification, and thawing after installation forms gluey greasing substance and causes to install more convenient.
In the present embodiment, the choke portion 2 extends horizontally to the side of bearing inner race 6, and bearing inner race 6 and bearing is completely covered
Space between outer ring 5.Space is completely covered be greatly improved isolation sealing effectiveness prevent greasing substance excessive and micro-
Little gap can guarantee that the operating of bearing again.
In the present embodiment, also including wind-retarding plate 11, the lid of the wind-retarding plate 11 is located at bearing opposite side, the wind-retarding plate 11 with
The bearing holder (housing, cover) 1 coordinates so that forming approximate closed space between bearing inner race and bearing outer ring.Using dual face seals, can
Effectively lift dental handpiece air pressure inside prevents internal lubrication material excessive to directly impacting in bearing, further.
In the present embodiment, as shown in figure 3, the wind-retarding plate 11 is located at the choke bowl of bearing opposite side, the choke for lid
Bowl coordinates parcel bearing with the bearing holder (housing, cover).Bearing is almost intercepted completely, lubrication silicone grease spill and leakage is significantly reduced, axle is improve
The service life held and rotation efficiency.
In the present embodiment, also including O-ring 12, the O-ring 12 be located at the bearing holder (housing, cover) connecting portion and extended spot it
Between, the connecting portion of the bearing holder (housing, cover) is close to arrange with the circular arc of extended spot with the O shapes circle.Strengthen sealing so that dentistry hand
Machine inside is in air-tight state, prevents internal gas flow from leaking, and improves internal gas flow transformation efficiency and causes internal gas flow operating
More rule.
In the present embodiment, the center of the O-ring 12 is centrally located at same level with bearing ball 7.O-ring center and axle
Hold ball and be centrally located at same level so that bearing ball plane of movement is consistent with fixed pan so that bearing is worked
It is more stable in journey.
In the present embodiment for prevent bearing long-time run up during expanded by heating so as to cause and bearing holder (housing, cover) phase
To skew so that position of bearings produces skew, and the choke portion adopts arc transition, the choke with the connecting portion junction
There is space with connecting portion junction and bearing in portion；The connecting portion adopts arc transition with extension.Excessively made using circular arc
The perfect laminating in contact site is obtained, in the expansion space that choke portion and connecting portion junction arrange space offer bearing, bearing is prevented
Produce relative skew.
Claims (9)
1. one kind is exclusively used in dental handpiece miniature high-speed bearing, including bearing, it is characterised in that：The bearing is externally provided with bearing
Set, the bearing holder (housing, cover) includes：
The choke portion of bearing upper surface is covered in, the choke portion middle part is provided with through hole corresponding with the hole on bearing；
Connecting portion of the close-fitting in the bearing side；
For being fixed on the extension of the outside turnover of dental handpiece heads.
2. dental handpiece miniature high-speed bearing is exclusively used in as claimed in claim 1, it is characterised in that：The bearing includes outer
Circle, inner ring, ball, the bearing outer ring inwall is provided with ball grooves, and the bearing inner race is provided with ball grooves, also including the guarantor of annular
Frame is held, the retainer is located between the bearing inner race and bearing outer ring, and the retainer upper surface is evenly equipped with receiving ball
Fluting.
3. dental handpiece miniature high-speed bearing is exclusively used in as claimed in claim 2, it is characterised in that：The retainer is arranged on
Bearing side, bearing opposite side is provided with silicone grease cushion rubber.
4. dental handpiece miniature high-speed bearing is exclusively used in as claimed in claim 1, it is characterised in that：Choke portion level is prolonged
Bearing inner race is extended, the space between bearing inner race and outer ring is completely covered.
5. dental handpiece miniature high-speed bearing is exclusively used in as claimed in claim 3, it is characterised in that：Also include wind-retarding plate, institute
State wind-retarding plate lid and be located at bearing opposite side, the wind-retarding plate and the bearing holder (housing, cover) coordinate so that being formed between bearing inner race and outer ring
Approximate closed space.
6. dental handpiece miniature high-speed bearing is exclusively used in as claimed in claim 5, it is characterised in that：The wind-retarding plate sets for lid
In the choke bowl of bearing opposite side, the choke bowl coordinates parcel bearing with the bearing holder (housing, cover).
7. dental handpiece miniature high-speed bearing is exclusively used in as claimed in claim 4, it is characterised in that：Also include O-ring, institute
O-ring is stated between the connecting portion and extended spot of the bearing holder (housing, cover), the connecting portion of the bearing holder (housing, cover) and the circular arc of extended spot with
The O shapes circle is close to arrange.
8. dental handpiece miniature high-speed bearing is exclusively used in as claimed in claim 7, it is characterised in that：The O-ring center with
Bearing ball is centrally located at same level.
9. dental handpiece miniature high-speed bearing is exclusively used in as claimed in claim 4, it is characterised in that：The choke portion with it is described
Connecting portion junction adopts arc transition, the choke portion to there is space with connecting portion junction and bearing；The connecting portion with
Extension adopts arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620529250.9U CN206129875U (en) | 2016-06-03 | 2016-06-03 | Miniature speed bearing of dental handpiece is exclusively used in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620529250.9U CN206129875U (en) | 2016-06-03 | 2016-06-03 | Miniature speed bearing of dental handpiece is exclusively used in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206129875U true CN206129875U (en) | 2017-04-26 |
Family
ID=58560177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620529250.9U Expired - Fee Related CN206129875U (en) | 2016-06-03 | 2016-06-03 | Miniature speed bearing of dental handpiece is exclusively used in |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206129875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840649A (en) * | 2016-06-03 | 2016-08-10 | 宁波和平鸽口腔医疗器材有限公司 | Mini-type high-speed bearing special for dental handpiece |
-
2016
- 2016-06-03 CN CN201620529250.9U patent/CN206129875U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840649A (en) * | 2016-06-03 | 2016-08-10 | 宁波和平鸽口腔医疗器材有限公司 | Mini-type high-speed bearing special for dental handpiece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20200603 |