CN205315502U - Engineering plastics electric dental engine bearing holder - Google Patents
Engineering plastics electric dental engine bearing holder Download PDFInfo
- Publication number
- CN205315502U CN205315502U CN201521119594.4U CN201521119594U CN205315502U CN 205315502 U CN205315502 U CN 205315502U CN 201521119594 U CN201521119594 U CN 201521119594U CN 205315502 U CN205315502 U CN 205315502U
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- retainer
- holder
- tie
- engineering plastics
- arc wing
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model provides an engineering plastics electric dental engine bearing holder, including the ring holder that is a body structure, the ring holder includes the same first holder of radial thickness and second holder, first holder and second holder pass through the tie -beam and connect, the tie -beam includes positive quadrangular and four arc pterygoid laminas being connected with four incline arcs of positive quadrangular respectively, first holder, the second holder, constitute the pocket hole between the arc pterygoid lamina on two adjacent tie -beams and this two tie -beams, and the correspondence interval is equipped with the arcs of recesses breach on the first holder medial surface that is arranged in the pocket hole and the second holder medial surface, the position that corresponds the tie -beam on the outer peripheral face of second holder is equipped with the guiding groove, and be equipped with the bullport on this arc pterygoid lamina. The utility model discloses a keep the utensil to have shockproof effect, noise reduction, rolling element and keep the ware, keep between ware and the bearing all forming lubricated effect reduces the noise.
Description
Technical field
This utility model relates to dental drill bearings technical field, is specifically related to a kind of engineering plastics dental drill bearings keeper.
Background technology
Keeper is parcel rolling element, and the bearing parts rolled therewith. At present, in industrially developed country such as Germany and Japan, high-speed dental drill bearing cage can adopt the technique that high-precision mold injection moulding produces to carry out large batch of high efficiency production, and injection moulding raw material is constantly in confidential state. Owing to dental drill assembly is to work under dust, moist adverse circumstances, therefore, the material of each parts of dental drill bearings should have good corrosion-resistant and anti-wear performance. Dental drill bearings is the critical component of dental drill assembly, have high rotating speed, in high precision, low noise and long-life requirement. Domestic a part adopts the mode of import integral bearing to meet the demand of domestic market for many years, and a part is employing phenol glue wooden pipe is the mode that blank carries out machining. Mode inefficient, high cost governs the development of domestic high-speed dental drill bearing always; And, existing major part keeper, along with the prolongation of the time of use, there is the phenomenons such as stuck or abnormal sound, noise is big, and service life is shorter. Along with the continuous expansion of dental drill bearings domestic and international market, production capacity and prescription to bearing cage can improve further, and therefore, the bearing cage adopting high performance engineering plastics to be material is development trend.
Utility model content
The purpose of this utility model is to provide a kind of engineering plastics dental drill bearings keeper, has the low feature with life-span length of noise.
The technical scheme that this utility model adopts for achieving the above object is: a kind of engineering plastics dental drill bearings keeper, including the annulus retainer being integrative-structure, described annulus retainer includes the first identical retainer of radial thickness and the second retainer, first retainer and the second retainer are connected by tie-beam, described tie-beam includes four-prism and four arc wing plates, the two ends up and down of four-prism are vertical with the medial surface of the first retainer and the second retainer respectively to be connected, four arc wing plates are connected with four incline arcs of four-prism respectively, first retainer, second retainer, the pocket hole for installing rolling element is constituted between arc wing plate on adjacent two tie-beams and this two tie-beams, and be arranged on the first retainer medial surface in pocket hole and the second retainer medial surface correspondence and be interval with arcs of recesses breach, on the outer peripheral face of the second retainer, the position of corresponding tie-beam is provided with the guiding groove that depression is arranged, the cell wall extension of the lateral surface and guiding groove that are positioned at the arc wing plate outside annulus retainer is connected, and this arc wing plate is provided with bullport.
Further, the lateral surface of the first retainer and the second retainer is equipped with cannelure, and the bottom land of the cannelure that first in retainer is provided with and the first retainer inner peripheral surface, the curved reinforcement being connected of outer peripheral face, the bottom land of the cannelure in the second retainer is provided with and the second retainer inner peripheral surface, the curved reinforcement being connected of outer peripheral face.
In this utility model, described bullport is bellmouth, and the larger diameter end of bullport is positioned on the lateral surface of arc wing plate.
Preferably, the radial thickness of annulus retainer is the 1/10 of its external diameter size.
Beneficial effect: keeper material of the present utility model is engineering plastics, has certain toughness, the not easily cracking damage when installing the rolling element such as steel ball, needle roller, adopt ball guiding version, after rolling element is installed into pocket hole, rotatable, without stuck and abnormal sound phenomenon; Available employing is bulk greatly, and the Shooting Technique form that efficiency is high produces; Wherein, the setting of arcs of recesses breach, the basis of proof strength alleviates the gravity of keeper, also makes keeper have shockproof effect, reduce noise; And, in bearing operation process, lubricating oil enters the gap between bearing and keeper from guiding groove, and is flowed between pocket hole and rolling element by bullport, has taken away amount of heat; The setting of guiding groove and bullport, it is possible to make rolling element obtain good self-lubricating effect, and make to be respectively formed between rolling element and keeper, keeper and bearing lubricant effect, noise-decreasing.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is the enlarged diagram indicating A in Fig. 1;
Fig. 3 is the schematic diagram of tie-beam.
Accompanying drawing labelling: 1, annulus retainer, the 2, first retainer, the 3, second retainer, 4, tie-beam, 5, four-prism, 6, arc wing plate, 7, bullport, 8, pocket hole, 9, arcs of recesses breach, 10, guiding groove, 11, cannelure, 12, reinforcement.
Detailed description of the invention
Below in conjunction with specific embodiment, engineering plastics dental drill bearings keeper of the present utility model is described further, so that those skilled in the art can be better understood from this utility model and can be practiced, but illustrated embodiment is not as to restriction of the present utility model.
A kind of engineering plastics dental drill bearings keeper, as it is shown in figure 1, include the annulus retainer 1 in integrative-structure, annulus retainer 1 is one-body molded by Shooting Technique, and annulus retainer 1 material is engineering plastics, has certain elasticity, it is simple to the installation of rolling element. For ease of injection mo(u)lding, the radial thickness of annulus retainer 1 is the 1/10 of its external diameter size, and the equal chamfering R=0.15mm in product upper and lower end face. Annulus retainer 1 includes the first retainer 2 and the second retainer 3 that radial thickness is identical, and the first retainer 2 and the second retainer 3 are connected by tie-beam 4.
Tie-beam 4 as shown in Figure 3, including four-prism 5 and four arc wing plates 6, rolling element only contacts with the medial surface of arc wing plate 6 in pocket hole 8, decreases the contact area of rolling element and keeper, reduce the friction between rolling element and keeper, improve service life.
As shown in Figure 2, the two ends up and down of four-prism 5 are vertical with the medial surface of the first retainer 2 and the second retainer 3 respectively to be connected, four arc wing plates 6 are connected with four incline arcs of four-prism 5 respectively, first retainer 2, second retainer 3, eight as shown in Figure 1 are constituted for installing the pocket hole 8 of rolling element between arc wing plate 6 on adjacent two tie-beams 4 and this two tie-beams 4, and be arranged on first retainer 2 medial surface in pocket hole 8 and the second retainer 3 medial surface correspondence and be interval with arcs of recesses breach, on the outer peripheral face of the second retainer 3, the position of corresponding tie-beam 4 is provided with the guiding groove 10 that depression is arranged, the cell wall extension of the lateral surface and guiding groove 10 that are positioned at the arc wing plate 6 outside annulus retainer 1 is connected, and this arc wing plate 6 is provided with bullport 7.Preferably, bullport 7 is multiple, is distributed on arc wing plate 6, and bullport 7 is bellmouth, and the larger diameter end of bullport 7 is positioned on the lateral surface of arc wing plate 6.
In this utility model, the lateral surface of the first retainer 2 and the second retainer 3 is equipped with cannelure, and the bottom land of the cannelure that first in retainer 2 is provided with and the first retainer 2 inner peripheral surface, the curved reinforcement being connected of outer peripheral face, the bottom land of the cannelure in the second retainer 3 is provided with and the second retainer 3 inner peripheral surface, the curved reinforcement being connected of outer peripheral face.
Guiding groove 10 guides lubricating oil to enter Bearing inner, alleviates the steel ball impact failure to keeper, improves the stationarity of keeper operating; And arc wing plate 6 ensure that rolling element does not come off from pocket hole 8, improve safety in utilization and the reliability of bearing; While lubricating oil flows between rolling element and keeper, keeper and bearing, take away the heat because bearing operation produces.
Claims (4)
1. an engineering plastics dental drill bearings keeper, including the annulus retainer (1) being integrative-structure, it is characterized in that: described annulus retainer (1) includes identical the first retainer (2) of radial thickness and the second retainer (3), first retainer (2) and the second retainer (3) are connected by tie-beam (4), described tie-beam (4) includes four-prism (5) and four arc wing plates (6), the two ends up and down of four-prism (5) are vertical with the medial surface of the first retainer (2) and the second retainer (3) respectively to be connected, four arc wing plates (6) are connected with four incline arcs of four-prism (5) respectively, first retainer (2), second retainer (3), the pocket hole (8) for installing rolling element is constituted between arc wing plate (6) on adjacent two tie-beams (4) and this two tie-beams (4), and be arranged on the first retainer (2) medial surface in pocket hole (8) and the second retainer (3) medial surface correspondence and be interval with arcs of recesses breach, on the outer peripheral face of the second retainer (3), the position of corresponding tie-beam (4) is provided with the guiding groove (10) that depression is arranged, the lateral surface of arc wing plate (6) being positioned at annulus retainer (1) outside is connected with the cell wall extension of guiding groove (10), and this arc wing plate (6) is provided with bullport (7).
2. a kind of engineering plastics dental drill bearings keeper according to claim 1, it is characterized in that: the lateral surface of the first retainer (2) and the second retainer (3) is equipped with cannelure, and the bottom land of the cannelure that first in retainer (2) is provided with and the first retainer (2) inner peripheral surface, the curved reinforcement being connected of outer peripheral face, the bottom land of the cannelure in the second retainer (3) is provided with and the second retainer (3) inner peripheral surface, the curved reinforcement being connected of outer peripheral face.
3. a kind of engineering plastics dental drill bearings keeper according to claim 1, it is characterised in that: described bullport (7) is bellmouth, and the larger diameter end of bullport (7) is positioned on the lateral surface of arc wing plate (6).
4. a kind of engineering plastics dental drill bearings keeper according to claim 1, it is characterised in that: radial thickness is its external diameter size the 1/10 of annulus retainer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521119594.4U CN205315502U (en) | 2015-12-30 | 2015-12-30 | Engineering plastics electric dental engine bearing holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521119594.4U CN205315502U (en) | 2015-12-30 | 2015-12-30 | Engineering plastics electric dental engine bearing holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205315502U true CN205315502U (en) | 2016-06-15 |
Family
ID=56198662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521119594.4U Active CN205315502U (en) | 2015-12-30 | 2015-12-30 | Engineering plastics electric dental engine bearing holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205315502U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113619677A (en) * | 2021-08-06 | 2021-11-09 | 豫北凯斯特隆（新乡）汽车科技有限公司 | Steering shaft and ball frame structure for transmitting torque |
| WO2023231258A1 (en) * | 2022-05-31 | 2023-12-07 | 北京金风科创风电设备有限公司 | Cage and bearing |
-
2015
- 2015-12-30 CN CN201521119594.4U patent/CN205315502U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113619677A (en) * | 2021-08-06 | 2021-11-09 | 豫北凯斯特隆（新乡）汽车科技有限公司 | Steering shaft and ball frame structure for transmitting torque |
| WO2023231258A1 (en) * | 2022-05-31 | 2023-12-07 | 北京金风科创风电设备有限公司 | Cage and bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 471000 Hengshan Road, Jianxi District, Luoyang, Henan Province, No. 99 Patentee after: Zhong Shi Luoyang Mechanical Engineering Technology Co., Ltd. Address before: 471000 Hengshan Road, Jianxi District, Luoyang, Henan Province, No. 99 Patentee before: Zhongshi Luoyang Engineering Plastic Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |