CN205729533U - Speedup dental handpiece - Google Patents
Speedup dental handpiece Download PDFInfo
- Publication number
- CN205729533U CN205729533U CN201620241116.9U CN201620241116U CN205729533U CN 205729533 U CN205729533 U CN 205729533U CN 201620241116 U CN201620241116 U CN 201620241116U CN 205729533 U CN205729533 U CN 205729533U
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- China
- Prior art keywords
- gear
- power transmission
- speedup
- dental handpiece
- transition axis
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Abstract
The utility model discloses a kind of speedup dental handpiece, including head, the first power transmission shaft, second driving shaft and transition axis, one end of first power transmission shaft is connected with head, one end of transition axis is connected with the first transmission shaft driven, the other end of transition axis is in transmission connection with second driving shaft, and the first power transmission shaft and second driving shaft have angle.Thus, use transition axis to connect two power transmission shafts, it is possible to effectively to decompose the actuation of two power transmission shafts, and then reduce the loss to driving end, reduce the requirement to material, thus increase speedup dental handpiece service life to a great extent, reduce cost.
Description
Technical field
This utility model relates to medical instruments field, particularly to a kind of speedup dental handpiece.
Background technology
Arranging two power transmission shafts at an angle in the bender of dental handpiece, two power transmission shafts are by gear drive even
Connect.The diameter of dental handpiece only 10～20mm, its internal travelling gear diameter only 3～6mm, and the power transmission shaft of dental handpiece needs
Rotating speed that will be bigger, therefore travelling gear is easy wearing detail.
As it is shown in figure 1, a power transmission shaft of existing dental handpiece arranges conical tooth, another power transmission shaft arranges internal gear, and interior
Gear is generally spur gear so that the gear engagement contact area of two power transmission shafts is little so that act on the moment on the tooth of gear
Relatively big, sliding friction occurs during two gear drives, causes material friction serious, be only 1～3 months the service life of gear, sternly
Ghost image rings the service life of dental handpiece.
Currently in order to improve the service life of driving cog, generally use harder material, increase to a great extent
The cost of dental handpiece.
Utility model content
The purpose of this utility model is to provide a kind of speedup dental handpiece, at least can solve the problem that one of the problems referred to above.
For achieving the above object, according to an aspect of the present utility model, it is provided that a kind of speedup dental handpiece, including machine
Head, the first power transmission shaft, second driving shaft and transition axis, one end of the first power transmission shaft is connected with head, one end of transition axis and the
One transmission shaft driven connects, and the other end of transition axis is in transmission connection with second driving shaft, the first power transmission shaft and second driving shaft tool
There is angle.Thus, transition axis is used to connect two power transmission shafts, it is possible to effectively to decompose the actuation of two power transmission shafts, and then reduce
Loss to driving end, reduces the requirement to material.
In some embodiments, the end of the first power transmission shaft is provided with gear I, and second driving shaft is provided with gear II, transition
Axle be respectively arranged at two ends with gear III and gear IV, gear I is meshed with gear III, and gear II and gear IV are meshed.Therefore,
Using gear drive, two groups of gears can be respectively provided with bigger contact area, reduces and acts on the moment on tooth, and then reduces tooth
Wheel abrasion, increase service life.
In some embodiments, gear I and gear III are bevel gear.Thus two gear external toothings, between tooth and tooth
Can tightly engage, it is achieved pure rolling transmission, effectively reduce gear wear, increase service life.
In some embodiments, gear II is internal gear, and gear IV is spur gear.Thus two gear internal messing, tooth with
Can tightly engage between tooth, it is achieved pure rolling transmission, effectively reduce gear wear, increase service life.
In some embodiments, the first housing, elbow and the second housing being sequentially connected with, the first housing and machine are also included
Head is connected, and the first power transmission shaft, second driving shaft and transition axis are respectively positioned on the space that the first housing, elbow and the second housing are formed
In, it being provided with a bracer in elbow, transition axis is by a block supports.Thus ensure the transition axis firm installation in dental handpiece.
The beneficial effects of the utility model are: speedup dental handpiece uses transition axis to connect the first power transmission shaft and the second transmission
Axle can effectively decompose the actuation of two power transmission shafts, and then reduces the loss to driving end, reduces the requirement to material.Transition
Axle and two power transmission shafts realize being in transmission connection by gear driving pair, and the setting of two groups of gear driving pairs enables between gear tight
Close engagement, it is achieved pure rolling transmission, effectively reduces gear friction, reduces the requirement to material.Speedup dentistry of the present utility model
The advantage that mobile phone has length in service life, low cost, simple in construction.
Accompanying drawing explanation
Fig. 1 is the structural representation of speedup dental handpiece in prior art；
Fig. 2 is the structural representation of the speedup dental handpiece of this utility model one embodiment；
Fig. 3 is the enlarged diagram of the part A of speedup dental handpiece shown in Fig. 2.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail.
Fig. 2 and Fig. 3 show schematically show the speedup dental handpiece according to a kind of embodiment of the present utility model.
As shown in Figures 2 and 3, this speedup dental handpiece, including head the 1, first power transmission shaft 2, second driving shaft 3 and transition
Axle 4, one end of the first power transmission shaft 2 is connected with head 1, and one end of transition axis 4 is in transmission connection with the first power transmission shaft 2, transition axis 4
The other end is in transmission connection with second driving shaft 3, and the first power transmission shaft 2 and second driving shaft 3 have angle, to form speedup dentistry hands
The elbow of machine.
The end of the first power transmission shaft 2 is provided with gear I 21, and second driving shaft 3 is provided with gear II 31, and the two ends of transition axis 4 are divided
Not being provided with gear III 41 and gear IV 42, gear I 21 is meshed with gear III 41, and gear II 31 and gear IV 42 are meshed.
Gear I 21 and gear III 41 are bevel gear, and therefore, two gears make the first power transmission shaft 2 be formed curved with transition axis 4
Angle, during transmission, two gears can tightly engage.Gear II 31 is internal gear, and gear IV 42 is spur gear, during transmission, and two gears
Can tightly engage.Two groups of gear pair transmissions, decompose the actuation of the first power transmission shaft 2 and second driving shaft 3 so that
Gear carries out pure rolling transmission, reduces gear wear to a great extent so that transmission process is more steady.
The speedup dental handpiece of present embodiment also includes the first housing 5, elbow 6 and the second housing 7 being sequentially connected with, the
One housing 5 is connected with head 1, and the first power transmission shaft 2, second driving shaft 3 and transition axis 4 are respectively positioned on the first housing 5, elbow 6 and
In the space that two housings 7 are formed.Being provided with a bracer 61 in elbow 6, transition axis 4 is supported by a bracer 61.The two ends set of transition axis 4
Being provided with bearing, bearing is supported by bracer 61, it is achieved transition axis 4 rotatably mounted.
The two ends of the first power transmission shaft 2 are arranged with bearing, and bearing is supported by the first housing 5, it is achieved turning of the first power transmission shaft 2
Dynamic installation.Second driving shaft 3 be arranged with two groups of bearings, two groups of bearings are supported by the second housing 7, it is achieved second driving shaft 3
Rotatably mounted.
Above-described is only embodiments more of the present utility model.For the person of ordinary skill of the art,
On the premise of creating design without departing from this utility model, it is also possible to making some deformation and improvement, these broadly fall into this practicality
Novel protection domain.
Claims (6)
1. speedup dental handpiece, it is characterised in that include head (1), the first power transmission shaft (2), second driving shaft (3) and transition axis
(4), one end of described first power transmission shaft (2) is connected with head (1), and one end of described transition axis (4) passes with the first power transmission shaft (2)
Being dynamically connected, the other end of described transition axis (4) is in transmission connection with second driving shaft (3), and described first power transmission shaft (2) and second passes
Moving axis (3) has angle.
Speedup dental handpiece the most according to claim 1, it is characterised in that the end of described first power transmission shaft (2) is provided with
Gear I (21), described second driving shaft (3) is provided with gear II (31), described transition axis (4) be respectively arranged at two ends with gear III
(41) and gear IV (42), described gear I (21) is meshed with gear III (41), described gear II (31) and gear IV (42) phase
Engagement.
Speedup dental handpiece the most according to claim 2, it is characterised in that described gear I (21) is with gear III (41) all
For bevel gear.
Speedup dental handpiece the most according to claim 2, it is characterised in that described gear II (31) is internal gear, described
Gear IV (42) is spur gear.
5. according to the speedup dental handpiece described in any one of Claims 1 to 4, it is characterised in that also include be sequentially connected with
One housing (5), elbow (6) and the second housing (7), described first housing (5) is connected with head (1), described first power transmission shaft
(2), second driving shaft (3) and transition axis (4) are respectively positioned on the space that the first housing (5), elbow (6) and the second housing (7) are formed
In.
Speedup dental handpiece the most according to claim 5, it is characterised in that be provided with a bracer (61) in described elbow (6),
Described transition axis (4) is supported by a bracer (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620241116.9U CN205729533U (en) | 2016-03-25 | 2016-03-25 | Speedup dental handpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620241116.9U CN205729533U (en) | 2016-03-25 | 2016-03-25 | Speedup dental handpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205729533U true CN205729533U (en) | 2016-11-30 |
Family
ID=57374456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620241116.9U Active CN205729533U (en) | 2016-03-25 | 2016-03-25 | Speedup dental handpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205729533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105616016A (en) * | 2016-03-25 | 2016-06-01 | 佛山市驰康医疗器材有限公司 | Speed-up dental handpiece |
-
2016
- 2016-03-25 CN CN201620241116.9U patent/CN205729533U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105616016A (en) * | 2016-03-25 | 2016-06-01 | 佛山市驰康医疗器材有限公司 | Speed-up dental handpiece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |