CN104825238A - Head of dental handpiece - Google Patents
Head of dental handpiece Download PDFInfo
- Publication number
- CN104825238A CN104825238A CN201510257380.1A CN201510257380A CN104825238A CN 104825238 A CN104825238 A CN 104825238A CN 201510257380 A CN201510257380 A CN 201510257380A CN 104825238 A CN104825238 A CN 104825238A
- Authority
- CN
- China
- Prior art keywords
- bearing
- shock absorbing
- absorbing ring
- dental handpiece
- head
- 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.)
- Pending
Links
- 230000035939 shock Effects 0.000 claims description 61
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract 8
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000003139 buffering effect Effects 0.000 description 4
- 239000012634 fragment Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses a head of a dental handpiece. The head comprises a bearing, a first damping ring, a second damping ring and a bearing block, wherein the bearing is positioned in the bearing block; the first damping ring and the second damping ring sleeve the bearing; an L-shaped groove is formed in the bearing; the first damping ring props against the groove wall of the L-shaped groove; and the second damping ring props against the outer wall of the bearing. The first damping ring provides axial and radial buffer for the bearing, the second damping ring provides radial buffer for the bearing, the bearing is uniform in stress and large in stress area, the vibration of the bearing is reduced, the operating noise of the dental handpiece can be reduced, and the service life of the bearing is prolonged.
Description
Technical field
The present invention relates to medical apparatus and instruments, particularly a kind of head of dental handpiece.
Background technology
In the middle of current existing technology, as shown in Figure 1, the bearing of dental handpiece heads inside is all the vibration that shell fragment 8 that the rubber ring 9 established by bearing block inwall slot and bottom surface are established controls its periphery, thus controls bearing owing to vibrating the displacement of axis and the radial direction caused.But, shell fragment 8 only with a side contacts of bearing, both contacts area are little, and shaft strength is uneven.The turn up 20 ~ 400,000 revs/min of height dental handpiece, bearing high speed rotating, shaft strength is slightly uneven, then produce larger noise, affects the use of dental handpiece.The head inner bearing diameter only 6mm of dental handpiece, long-term unbalance stress is fragile.
Summary of the invention
The object of this invention is to provide the head of dental handpiece of a kind of low noise, bearing long service life.
For achieving the above object, according to an aspect of the present invention, provide a kind of head of dental handpiece, comprise bearing, the first shock absorbing ring, the second shock absorbing ring and bearing block, bearing is positioned at bearing block, and the first shock absorbing ring and the second shock absorbing ring are all sheathed on bearing, and bearing is provided with L-type groove, the cell wall of the first shock absorbing ring and L-type groove offsets, and the outer wall of the second shock absorbing ring and bearing offsets.Thus, the first shock absorbing ring provides axially and radial buffering for bearing, and the second shock absorbing ring provides radial buffering for bearing, and shaft strength is even, lifting surface area is large, reduces bear vibration, can reduce the operation noise of dental handpiece, and the service life of raising bearing.
In some embodiments, bearing block inwall is provided with the first groove and the second groove, and the first shock absorbing ring is positioned at the first groove, and the second shock absorbing ring is positioned at the second groove.Thus, two shock absorbing rings are installed in groove, prevent shock absorbing ring to be shifted.
In some embodiments, the head of dental handpiece also comprises central shaft, bearing, the first shock absorbing ring, the second shock absorbing ring and bearing block comprise two groups, and are divided into the two ends of central shaft, the position specular of two groups of bearings, the first shock absorbing ring, the second shock absorbing ring and bearing blocks.Thus make two bearings can both uniform force, and then realize the support to central shaft.
In some embodiments, the first shock absorbing ring is near the end of central shaft, and the second shock absorbing ring is away from the end of central shaft.Thus make two the first shock absorbing rings to bearing provider to relative axial force, prevent the end face of bearing and bearing block from colliding, reduce the noise of head further.
In some embodiments, the head of dental handpiece also comprises housing, and bearing, the first shock absorbing ring, the second shock absorbing ring and bearing block are all positioned at housing, and bearing block is fixedly connected with housing.Thus, housing is played a supporting role to bearing block.
Beneficial effect of the present invention is: the first shock absorbing ring of dental handpiece heads provides axially and radial buffering for bearing, second shock absorbing ring cushions for bearing provides radial, shaft strength is even, lifting surface area is large, reduce bear vibration, the operation noise of dental handpiece can be reduced, and improve the service life of bearing.
Accompanying drawing explanation
Fig. 1 is the structural representation that the head inner bearing of dental handpiece in prior art is installed;
Fig. 2 is the structural representation of the head of the dental handpiece of an embodiment of the present invention;
The head that Fig. 3 is dental handpiece shown in Fig. 1 removes the structural representation after bearing and shock absorbing ring;
Fig. 4 is the structural representation of the bearing of the head of dental handpiece shown in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Fig. 2 ~ 4 show schematically show the head of the dental handpiece according to one embodiment of the present invention.
As shown in Figure 2, the head of the dental handpiece of present embodiment comprises bearing 1, first shock absorbing ring 2, second shock absorbing ring 3 and bearing block 4.Bearing 1 is positioned at bearing block 4, and the first shock absorbing ring 2 and the second shock absorbing ring 3 are all sheathed on bearing 1.First shock absorbing ring 2 and the second shock absorbing ring 3 are O type circle, and are quality of rubber materials.
As shown in Figure 3, bearing block 4 inwall is provided with the first groove 41 and the second groove 42, first shock absorbing ring 2 and is positioned at the first groove 41, second shock absorbing ring 2 and is positioned at the second groove 42.
As shown in Figure 4, bearing 1 is provided with L-type groove 11, first shock absorbing ring 2 and offsets with the cell wall of L-type groove 11, and the second shock absorbing ring 3 offsets with the outer wall of bearing 1.L-type groove 11 is located at the outer wall of bearing 1, makes bearing 1 form different two sections of diameter.
The head of the dental handpiece of present embodiment also comprises central shaft 5, bearing 1, first shock absorbing ring 2, second shock absorbing ring 3 and bearing block 4 comprise two groups, and being divided into the two ends of central shaft 5, two groups of bearing 1, first shock absorbing ring 2, second shock absorbing rings 3 and bearing block 4 specular are arranged.Bearing 1 is sheathed on central shaft 5, and is fixedly connected with central shaft 5.The holder being used for clamping trolley pin is set in central shaft 5, between two bearings 1, also wind wheel is set.
First shock absorbing ring 2 is near the end of central shaft 5, and the second shock absorbing ring 3, away from the end of central shaft 5, makes two the first shock absorbing rings, 2 couples of bearing 1 providers to relative axial force, prevents the end face of bearing 1 and bearing block 4 from colliding, and reduces the noise of head further.
The head of the dental handpiece of present embodiment also comprises housing 6, and bearing 1, first shock absorbing ring 2, second shock absorbing ring 3 and bearing block 4 are all positioned at housing 6, and bearing block 4 is fixedly connected with housing 6.Housing 6 comprises main body 61 and bonnet 62, bearing block 4 is connected with bonnet 62 interference, and another bearing block 4 is integral type structure with main body 61.
In use, bearing 1 centre of support axle 5 high speed rotating, the first shock absorbing ring 2 and the second shock absorbing ring 3 provide axially and radial buffering for bearing 1 head of the dental handpiece of present embodiment, effectively reduce bearing 1 and vibrate, reduce the noise of dental handpiece.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (5)
1. the head of dental handpiece, it is characterized in that, comprise bearing (1), the first shock absorbing ring (2), the second shock absorbing ring (3) and bearing block (4), described bearing (1) is positioned at bearing block (4), described first shock absorbing ring (2) and the second shock absorbing ring (3) are all sheathed on bearing (1), described bearing (1) is provided with L-type groove (11), described first shock absorbing ring (2) offsets with the cell wall of L-type groove (11), and described second shock absorbing ring (3) offsets with the outer wall of bearing (1).
2. the head of dental handpiece according to claim 1, it is characterized in that, described bearing block (4) inwall is provided with the first groove (41) and the second groove (42), described first shock absorbing ring (2) is positioned at the first groove (41), and described second shock absorbing ring (2) is positioned at the second groove (42).
3. the head of dental handpiece according to claim 1 and 2, it is characterized in that, also comprise central shaft (5), described bearing (1), the first shock absorbing ring (2), the second shock absorbing ring (3) and bearing block (4) comprise two groups, and be divided into the two ends of central shaft (5), the position specular of bearing (1), the first shock absorbing ring (2), the second shock absorbing ring (3) and bearing block (4) described in two groups.
4. the head of dental handpiece according to claim 3, is characterized in that, described first shock absorbing ring (2) is near the end of central shaft (5), and described second shock absorbing ring (3) is away from the end of central shaft (5).
5. the head of dental handpiece according to claim 1 and 2, it is characterized in that, also comprise housing (6), described bearing (1), the first shock absorbing ring (2), the second shock absorbing ring (3) and bearing block (4) are all positioned at housing (6), and described bearing block (4) is fixedly connected with housing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510257380.1A CN104825238A (en) | 2015-05-19 | 2015-05-19 | Head of dental handpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510257380.1A CN104825238A (en) | 2015-05-19 | 2015-05-19 | Head of dental handpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104825238A true CN104825238A (en) | 2015-08-12 |
Family
ID=53803718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510257380.1A Pending CN104825238A (en) | 2015-05-19 | 2015-05-19 | Head of dental handpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104825238A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105411687A (en) * | 2015-12-10 | 2016-03-23 | 佛山市德克医疗器械有限公司 | Press-type dental high speed turbine handpiece |
| CN105395260B (en) * | 2015-12-10 | 2018-07-24 | 佛山市德克医疗器械有限公司 | Package assembly and mandrel component for push type high speed dental turbo mobile phone |
| CN110279475A (en) * | 2019-06-25 | 2019-09-27 | 佛山市碧盈医疗器材有限公司 | A kind of head of compact dental handpiece |
| CN115405621A (en) * | 2022-08-25 | 2022-11-29 | 南京中船绿洲环保有限公司 | External bearing and slag conveyor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1887237A (en) * | 2006-07-25 | 2007-01-03 | 北京诺士宝牙科手机有限公司 | Back suction preventer for disposable high speed turbine dental drill hand piece |
| WO2007149368A2 (en) * | 2006-06-16 | 2007-12-27 | Dentsply International Inc. | Improved bearing for dental handpiece |
| CN202355473U (en) * | 2011-10-24 | 2012-08-01 | 宁静瑶 | Novel dental handpiece |
| CN204636577U (en) * | 2015-05-19 | 2015-09-16 | 佛山市驰康医疗器材有限公司 | The head of dental handpiece |
-
2015
- 2015-05-19 CN CN201510257380.1A patent/CN104825238A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007149368A2 (en) * | 2006-06-16 | 2007-12-27 | Dentsply International Inc. | Improved bearing for dental handpiece |
| CN1887237A (en) * | 2006-07-25 | 2007-01-03 | 北京诺士宝牙科手机有限公司 | Back suction preventer for disposable high speed turbine dental drill hand piece |
| CN202355473U (en) * | 2011-10-24 | 2012-08-01 | 宁静瑶 | Novel dental handpiece |
| CN204636577U (en) * | 2015-05-19 | 2015-09-16 | 佛山市驰康医疗器材有限公司 | The head of dental handpiece |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105411687A (en) * | 2015-12-10 | 2016-03-23 | 佛山市德克医疗器械有限公司 | Press-type dental high speed turbine handpiece |
| CN105411687B (en) * | 2015-12-10 | 2018-07-24 | 佛山市德克医疗器械有限公司 | A kind of push type high speed dental turbo mobile phone |
| CN105395260B (en) * | 2015-12-10 | 2018-07-24 | 佛山市德克医疗器械有限公司 | Package assembly and mandrel component for push type high speed dental turbo mobile phone |
| CN110279475A (en) * | 2019-06-25 | 2019-09-27 | 佛山市碧盈医疗器材有限公司 | A kind of head of compact dental handpiece |
| CN115405621A (en) * | 2022-08-25 | 2022-11-29 | 南京中船绿洲环保有限公司 | External bearing and slag conveyor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104825238A (en) | Head of dental handpiece | |
| CN204636577U (en) | The head of dental handpiece | |
| CN103343779B (en) | Vertical shaft impact crusher Transmission bearing unit | |
| CN103215677B (en) | A kind of damping vibration attenuation metancenter formula electricity ingot whizzer | |
| CN101585167A (en) | Novel grinding head device | |
| CN207888443U (en) | A kind of electrolytic copper foil cathode roll combined type horizontal grinding head device | |
| CN205817307U (en) | The air supporting lathe of outer rotor motor driven | |
| CN204251806U (en) | A kind of Yarn-spinning spindle | |
| CN209094872U (en) | Turning rolls | |
| CN202926472U (en) | Turbine machine shaft inner pipe balancing and centering device | |
| CN201824239U (en) | Deep hole grinding motorized spindle | |
| CN201360199Y (en) | Electric motor capable of bearing large axial tension | |
| CN206617485U (en) | A kind of spring assembly on roller washing machine | |
| CN201557000U (en) | A grinder motor | |
| CN106703989B (en) | Maneton oil duct discloses the supporting arrangement washed | |
| CN102242772A (en) | Self-adaptive shock-absorbing bearing pedestal | |
| CN204437061U (en) | A kind of full permanent magnetism full magnetic suspension bearing | |
| CN204419845U (en) | A kind of guide wheel assembly | |
| CN207178276U (en) | a magnetic pump | |
| CN206072102U (en) | Roll wheel assembly | |
| CN202952824U (en) | Damping support in middle of transmission shaft | |
| CN109158802B (en) | Magnetic suspension damping stable connector for welding robot | |
| CN201834534U (en) | Displacer | |
| CN210684046U (en) | A wear-resistant spinning spindle | |
| CN103862313A (en) | Combined central spindle device in mechanical part processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150812 |
|
| WD01 | Invention patent application deemed withdrawn after publication |