CN110368107A - Dental handpiece speedup bender - Google Patents
Dental handpiece speedup bender Download PDFInfo
- Publication number
- CN110368107A CN110368107A CN201910716060.6A CN201910716060A CN110368107A CN 110368107 A CN110368107 A CN 110368107A CN 201910716060 A CN201910716060 A CN 201910716060A CN 110368107 A CN110368107 A CN 110368107A
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- curved surface
- speedup
- dental handpiece
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- 230000005540 biological transmission Effects 0.000 claims abstract description 67
- 238000003462 Bender reaction Methods 0.000 claims abstract description 3
- 230000007704 transition Effects 0.000 claims description 28
- 238000009826 distribution Methods 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 abstract description 10
- 238000001356 surgical procedure Methods 0.000 abstract description 4
- 210000003128 head Anatomy 0.000 description 23
- 238000010586 diagram Methods 0.000 description 11
- 210000000214 mouth Anatomy 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/08—Machine parts specially adapted for dentistry
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/08—Machine parts specially adapted for dentistry
- A61C1/18—Flexible shafts; Clutches or the like; Bearings or lubricating arrangements; Drives or transmissions
- A61C1/185—Drives or transmissions
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses dental handpiece speedup benders, including head, the first transmission shaft and second driving shaft, one end of first transmission shaft is connect with head, the other end and second driving shaft are sequentially connected, first transmission shaft and second driving shaft have angle, vehicle needle is installed in head, the periphery of vehicle needle is arranged with first gear, one end that first transmission shaft is connect with head is equipped with second gear, second gear is engaged with first gear, there is angle, second gear can at least eliminate the part axial thrust generated to first gear between first gear and second gear.The present invention partially removes the axial force for having even completely eliminated the gear being sheathed on outside vehicle needle, substantially reduces the friction between bearing, improve the service life of bearing by changing gear fit structure；Meanwhile the generation of heat is greatly reduced, and then reduce the dosage that cooling water is used in surgical procedure, give doctor's height clearly operating space.
Description
Technical field
The present invention relates to field of medical device, in particular to a kind of dental handpiece speedup bender.
Background technique
Dental handpiece is divided into high-speed dental handpiece and low speed dental handpiece, and the revolving speed of high-speed dental handpiece reaches per minute
Ten thousand turns of 35-42, it is mainly used for treatment and the reparation such as such as burrow, cut；And low speed dental handpiece be mainly used for being bored, grind and
Cutting treatment.Low speed mobile phone is divided into straight machine and bender, and straight machine is that sanding and polishing is used, and is mainly used for treating outside mouth, bender is main
For being treated in mouth.
As shown in the Chinese utility model patent of Patent No. 201620241116.9, it discloses a kind of speedup dentistry hands
Machine, including head 1, the first transmission shaft 2, second driving shaft 3 and transition axis 4, one end of the first transmission shaft 2 are connect with head 1, mistake
The one end and the first transmission shaft 2 for crossing axis 4 are sequentially connected, and the other end and second driving shaft 3 of transition axis 4 are sequentially connected, and first passes
Moving axis 2 and second driving shaft 3 have angle.The dental handpiece connects two transmission shafts using transition axis 4, can effectively decompose two
The actuation of transmission shaft, and then the loss to driving end is reduced, the requirement to material is reduced, to largely increase
Speedup dental handpiece service life reduces cost.
But above-mentioned dental handpiece has the disadvantage in that as all benders now on the market such as the institute of Fig. 1~4
Show, in order to realize the transmission connection for having certain angle (90 ° and 90 ° or more), one end that the first transmission shaft 2 is connect with head 1
Gear (hereinafter referred to as gear B) be necessary for angular wheel, while being sheathed on outside vehicle needle of being matched with gear B gear (with
Lower abbreviation gear C) it also must be angular wheel, when gear B rotation, two power can be generated to gear C, one is driving gear
The radial thrust of C rotation, the other is the axial thrust for pushing gear C to move to the rear cover direction close to head 1.Bearing is whirlpool
It takes turns the precision component of mobile phone and is vulnerable part, if there is abrasion or other damages, it is easy to mobile phone be caused to damage.Due to
The presence of the axial thrust, at work, vehicle needle can generate the power of axial direction to dental handpiece, and then cause to be sheathed on outside vehicle needle
Friction is generated between the bearing in week, seriously affects the service life of bearing.
Summary of the invention
The object of the present invention is to provide a kind of long service life, the less dental handpiece speedup bender of heat is generated, at least
It is able to solve one of above problem.
According to an aspect of the invention, there is provided a kind of dental handpiece speedup bender, including head, the first transmission shaft and
One end of second driving shaft, the first transmission shaft is connect with head, and the other end and second driving shaft are sequentially connected, the first transmission shaft and
Second driving shaft has angle, is equipped with vehicle needle in head, the periphery of vehicle needle is set with bearing and first gear, the first transmission shaft
The one end connecting with head is equipped with second gear, and second gear engages with first gear, has between first gear and second gear
There is angle, second gear can at least eliminate the part axial thrust generated to first gear.
Traditional first gear and second gear are that the bevel gear of standard engage, just will form on the conical surface radial direction with
Axial component, and this axial component can make bearing largely generate heat.The present invention gear fit structure traditional by change,
The axial force for having even completely eliminated the gear being sheathed on outside vehicle needle is partially removed, the friction between bearing is substantially reduced,
Improve the service life of bearing；
Simultaneously as the friction between bearing discharges amount of heat, the temperature that will lead to entire head accelerates to increase, and influences just
It is often used.Since bender is mainly used for treating in mouth, when operation, bender head directly works in the mouth of people, if warm
Use demand must be unable to satisfy by spending height.The existing method for solving the problems, such as this is that head heat is taken away using external cooling water pipe
The mode of the Physical temperature-lowerings such as amount reduces temperature, however the cooling water after can directly reside in the oral cavity of people, performed the operation
Journey if necessary to use mobile phone for a long time, it is necessary to constantly use cooling water temperature, water consumption is more, and will lead to operating surface becomes
It is fuzzy, influence the operation of doctor；It also needs constantly to extract the water in oral cavity simultaneously to meet normal surgical, this is just seriously affected
The treatment experience of patient.
The present invention partially removes by changing gear fit structure and has even completely eliminated the gear being sheathed on outside vehicle needle
Axial force substantially reduces the friction between bearing, improves the service life of bearing；Meanwhile greatly reducing heat
It generates, and then reduces the dosage for using cooling water in surgical procedure, give doctor's height clearly operating space.
In some embodiments, first gear is spur gear or bevel gear.When first gear is spur gear as a result,
Second gear acts on the power in first gear perpendicular to the outer wall of first gear, i.e., the active force is only lateral thrust, completely
For driving first gear to rotate, axial thrust will not be generated, completely eliminates the axial action for the gear being sheathed on outside vehicle needle
Power.When first gear is bevel gear, the power that second gear acts in first gear is approximately perpendicular to the outer wall of first gear, because
When this is just contacted, a little axial thrust can be generated, but then hardly generates axial thrust in rotary course, is eliminated big
Part is sheathed on the axial force of the gear outside vehicle needle.
In some embodiments, one end of second gear offers the aperture matched with the first transmission shaft, the other end
The chisel teeth dissipated equipped with multiple circumferentially array distributions and outward, chisel teeth gradually come to a point from root to top.As a result,
When one transmission shaft drives second gear rotation, chisel teeth top acts perpendicularly to the flank of tooth of first gear, due to first gear
For spur gear, the active force which acts on first gear only generates radial thrust, will not generate axial thrust.
In some embodiments, chisel teeth is enclosed by three first surface, the second curved surface and third curved surface curved surfaces,
First surface, the second curved surface and third curved surface are connected with each other, and first surface is by the first lines, the second lines and three sections of third lines
Lines are enclosed, and the second curved surface is enclosed by three sections of the first lines, third lines and the 4th lines lines, first surface with
The plane where the first lines is symmetrical in the first lines, first surface and the second curved surface for second surface intersection, the first lines, second
Lines, third lines, the 4th lines and the 5th lines are the circular arc of convex.The special shape of chisel teeth can be protected as a result,
It is contacted when card rotation with first gear and only generates radial forces.
In some embodiments, one end of second gear offers the aperture matched with the first transmission shaft, the other end
Chisel teeth equipped with multiple circumferentially array distributions, chisel teeth gradually come to a point from root to top.
In some embodiments, chisel teeth is enclosed by three first surface, the second curved surface and third curved surface curved surfaces,
First surface, the second curved surface and third curved surface are connected with each other, and first surface is by the first lines, the second lines and three sections of third lines
Lines are enclosed, and the second curved surface is enclosed by three sections of the first lines, the 4th lines and the 5th lines lines, first surface with
Second surface intersection is symmetrical arranged in the first lines, first surface and the second curved surface along plane where the first lines, the first lines,
Second lines and the 4th lines are the circular arc of convex, and third lines and the 5th lines are straight line.
In some embodiments, dental handpiece speedup bender further includes transition axis, one end of transition axis and the first transmission
Axis transmission connection, the other end and second driving shaft of transition axis are sequentially connected, and the end of the first transmission shaft is equipped with third gear, the
Two transmission shafts are equipped with the 4th gear, and the both ends of transition axis are respectively equipped with the 5th gear and the 6th gear, third gear and the 5th tooth
Wheel is meshed, and the 4th gear and the 6th gear are meshed.Two transmission shafts of transition axis connection are used as a result, can effectively be decomposed
The actuation of two transmission shafts, and then the loss to driving end is reduced, reduce the requirement to material；Using gear drive, two groups
Gear can be respectively provided with biggish contact area, reduce the torque acted on tooth, and then reduce the abrasion of gear, increase use
Service life.
In some embodiments, third gear and the 5th gear are bevel gear, and the 4th gear is internal gear, the 6th tooth
Wheel is spur gear.It is nibbled in two gear external toothing of third gear and the 5th gear as a result, the 4th gear and two gear of the 6th gear
It closes, can be tightly engaged between tooth and tooth, realize pure rolling transmission, gear wear is effectively reduced, increases service life.
In some embodiments, dental handpiece speedup bender further includes sequentially connected first shell, elbow and second
Shell, first shell are connected with head, and the first transmission shaft, second driving shaft and transition axis are respectively positioned on first shell, elbow and
In the space that two shells are formed.
In some embodiments, supporting block is equipped in head, transition axis is supported by supporting block.Supporting block can guarantee as a result,
Firm installation of the transition axis in dental handpiece.
Beneficial effects of the present invention:
The present invention partially removes by changing gear fit structure and has even completely eliminated the gear being sheathed on outside vehicle needle
Axial force substantially reduces the friction between bearing, improves the service life of bearing；Meanwhile greatly reducing heat
It generates, and then reduces the dosage for using cooling water in surgical procedure, give one height of doctor clearly operating space.
Detailed description of the invention
Fig. 1 is the schematic diagram of the dental handpiece speedup bender of the prior art；
Fig. 2 is the gear B of gear transmission structure shown in FIG. 1 and the schematic diagram of the section structure of gear C cooperation；
Fig. 3 is the structural schematic diagram of the gear C of gear transmission structure shown in FIG. 1；
Fig. 4 is the structural schematic diagram of the gear B of gear transmission structure shown in FIG. 1；
Fig. 5 is the schematic perspective view of dental handpiece speedup bender shown in embodiment 1；
Fig. 6 is the schematic cross-sectional view of dental handpiece speedup bender shown in fig. 5；
Fig. 7 is the enlarged structure schematic diagram at the A of dental handpiece speedup bender shown in fig. 6；
Fig. 8 is the enlarged structure schematic diagram at the B of dental handpiece speedup bender shown in fig. 6；
Fig. 9 is that the first gear of dental handpiece speedup bender shown in fig. 5 and the stereochemical structure of second gear cooperation are illustrated
Figure；
Figure 10 is the schematic diagram of the section structure of first gear shown in Fig. 9 and second gear；
Figure 11 is the schematic perspective view of the second gear of dental handpiece speedup bender shown in fig. 5；
Figure 12 is the overlooking structure diagram of second gear shown in Figure 11；
Figure 13 is the schematic perspective view of dental handpiece speedup bender shown in embodiment 2；
Figure 14 is the schematic cross-sectional view of dental handpiece speedup bender shown in Figure 13；
Figure 15 is the enlarged structure schematic diagram at the C of dental handpiece speedup bender shown in Figure 13；
Figure 16 is that the stereochemical structure that the first gear of dental handpiece speedup bender shown in Figure 13 cooperates with second gear is shown
It is intended to；
Figure 17 is the overlooking structure diagram of first gear shown in Figure 16 and second gear cooperation；
Figure 18 is the schematic perspective view of second gear shown in Figure 16；
Figure 19 is the overlooking structure diagram of second gear shown in Figure 18.
Appended drawing reference in Fig. 5~19: 1- head；The first transmission shaft of 2-；3- second driving shaft；4- transition axis；5- vehicle needle；
6- first gear；7- second gear；8- first shell；9- elbow；10- second shell；11- cooling water pipe；12- bearing；21-
Three gears；The 4th gear of 31-；The 5th gear of 41-；The 6th gear of 42-；71- aperture；72- chisel teeth；91- supporting block；721-
One curved surface；The second curved surface of 722-；723- third curved surface；The first lines of a-；The second lines of b-；C- third lines；The 4th lines of d-；
The 5th lines of e-.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Embodiment 1
Fig. 5~12 schematically show a kind of dental handpiece speedup bender of embodiment according to the present invention.
As shown in Fig. 5~12, which includes head 1, the first transmission shaft 2 and second driving shaft 3.The
One end of one transmission shaft 2 is connect with head 1, and the other end and second driving shaft 3 are sequentially connected.First transmission shaft 2 and the second transmission
Axis 3 has angle, to form the elbow 9 of dental handpiece.Vehicle needle 5 is installed, vehicle needle 5 is located at the part in head 1 in head 1
Both ends periphery is set with bearing 12.The setting of bearing 12 realizes the rotatably mounted of vehicle needle 5.Vehicle needle 5 is located at the portion in head 1
The periphery fixing sleeve of the medium position divided is equipped with first gear 6, and one end fixing sleeve that the first transmission shaft 2 is connect with head 1 is equipped with
Second gear 7.Second gear 7 is engaged with first gear 6.There is angle, this embodiment party between first gear 6 and second gear 7
Angle where the radial direction of straight line and second gear 7 where the radial direction of the first gear 6 of formula between straight line is substantially
120°.Second gear 7 can at least eliminate the part axial thrust generated to first gear 6.
First gear 6 can be spur gear or bevel gear.
As shown, the number of teeth that the first gear 6 of present embodiment is spur gear and first gear 6 is 19.As a result, first
When gear 6 is spur gear, second gear 7 acts on the power in first gear 6 perpendicular to the outer wall of first gear 6, the i.e. effect
Power is only radial thrust, is entirely used for driving first gear 6 and rotates, will not generate axial thrust.
One end of second gear 7 offers the aperture 71 matched with the second driving member, the other end be equipped with it is multiple circumferentially
Array distribution and the chisel teeth 72 dissipated outward.As shown in figure 11, circle diameter where the outer wall of chisel teeth 72 from bottom to up by
Gradual change is big.Chisel teeth 72 gradually comes to a point from root to top.The quantity of the chisel teeth 72 of the second gear 7 of present embodiment is
13.When the second driving member drives second gear 7 to rotate as a result, 72 top of chisel teeth acts perpendicularly to the tooth of first gear 6
Face, since first gear 6 is spur gear, the active force which acts on first gear 6 only generates radial thrust, will not
Generate axial thrust.
As shown in fig. 7, each chisel teeth 72 is by 723 3 first surface 721, the second curved surface 722 and third curved surface songs
Face is enclosed with bottom surface.First surface 721, the second curved surface 722 and third curved surface 723 are connected with each other.First surface 721 by according to
The first lines a, the second lines b and tri- sections of lines of third lines c of secondary connection are enclosed.Second curved surface 722 is by being sequentially connected
The first lines a, tri- sections of lines of the 4th lines d and the 5th lines e are enclosed.Third curved surface 723 is by the second lines b, the 4th
Lines d is enclosed, and third curved surface 723 and the outer wall of second gear 7 are linked together.First surface 721 and 722 phase of the second curved surface
The first lines a, first surface 721 and the second curved surface 722 is met to be symmetrical set along plane where the first lines a.This implementation
The first lines a, the second lines b, third lines c, the 4th lines d and the 5th lines e of mode are the circular arc of convex.Such as figure
Shown in 5, when first gear 6 is engaged with second gear 7, the bevel edge in 72 section of chisel teeth of the top of second gear 7 and
The horizontal line of one gear, 6 radial direction is parallel.As a result, the special shape of chisel teeth 72 can guarantee rotation when with first gear 6
Contact only generates radial forces.
As shown in Figure 6 and Figure 8, one end of transition axis 4 and the first transmission shaft 2 are sequentially connected, the other end of transition axis 4 and the
The transmission connection of two transmission shafts 3, the first transmission shaft 2 and second driving shaft 3 have angle, to form the elbow of speedup dental handpiece.
The end of first transmission shaft 2 be equipped with third gear 21, second driving shaft 3 be equipped with the 4th gear 31, the two of transition axis 4
End is respectively equipped with the 5th gear 41 and the 6th gear 42, and third gear 21 is meshed with the 5th gear 41, the 4th gear 31 and the
Six gears 42 are meshed.
Third gear 21 and the 5th gear 41 are bevel gear, and therefore, two gears make the first transmission shaft 2 and transition axis 4
Bent angle is formed, when transmission, two gears can be tightly engaged.4th gear 31 is internal gear, and the 6th gear 42 is spur gear, transmission
When, two gears can tightly engage.Two groups of teeth wheel auxiliary driving carries out the actuation of the first transmission shaft 2 and second driving shaft 3
It decomposes, so that gear carries out pure rolling transmission, gear wear is largely reduced, so that transmission process is more steady.
The speedup dental handpiece of present embodiment further includes sequentially connected first shell 5, elbow 6 and second shell 7, and
One shell 5 is connected with head 1, and the first transmission shaft 2, second driving shaft 3 and transition axis 4 are respectively positioned on first shell 5, elbow 6 and
In the space that two shells 7 are formed.Supporting block 61 is equipped in elbow 6, transition axis 4 is supported by supporting block 61.Two end caps of transition axis 4
Equipped with bearing, bearing is supported by supporting block 61, realizes the rotatably mounted of transition axis 4.
The periphery of first transmission shaft 2, second driving shaft 3 and transition axis 4 is arranged with corresponding bearing, guarantees each component
Smoothly rotate.
In addition, it is fixed with cooling water pipe 11 on the shell of the head 1 of present embodiment, the external cooling of cooling water pipe 11
Water, the heat for generating head 1 are taken away.
The course of work of the dental handpiece speedup bender of present embodiment are as follows:
Second driving shaft 3 rotates under the driving of external connection power, drives the 4th gear 31 being attached thereto to rotate, the 4th tooth
Wheel 31 drives the rotation of the 6th gear 42, and transition axis 4 is driven to rotate, and the 5th gear 41 also rotates with it, 41 actuating sleeve of the 5th gear
Third gear 21 set on 2 one end of the first transmission shaft rotates, and drives the first transmission shaft 2 and to be sheathed on the first transmission shaft 2 another
The rotation of the second gear 7 at end, the first gear 6 that the rotation of second gear 7 drives fixing sleeve to be set to 5 periphery of vehicle needle are rotated, are driven
Vehicle needle 5 rotates, and then completes the interior transmission of dental handpiece, completes to perform the operation by the vehicle needle 5 of rotation.
Due to the first gear 6 of present embodiment and the special designing of second gear 7, so that when second gear 7 rotates not
Axial thrust can be generated to first gear 6, i.e., the axial thrust generated to first gear 6 completely eliminates, to greatly reduce axis
Friction between holding, and then improve the service life of bearing 12.
Embodiment 2
Figure 13~19 schematically show the dental handpiece speedup bender of another embodiment according to the present invention.
As shown in Figure 13~19, the structure of the dental handpiece speedup bender of present embodiment and the dentistry hand in embodiment 1
Machine speedup bender structure is essentially identical, and difference is:
The first gear 6 of present embodiment is equal different and present embodiment with embodiment 1 from the structure of second gear 7
Angle between first gear 6 and second gear 7 is 90 °.
As shown in Figure 16~19, the first gear 6 of present embodiment is that the number of teeth of bevel gear and first gear 6 is 17.The
When one gear 6 is bevel gear, the power that second gear 7 acts in first gear 6 is approximately perpendicular to the outer wall of first gear 6, because
When this is just contacted, a little axial thrust can be generated, but then hardly generates axial thrust in rotary course, is eliminated big
Part is sheathed on the axial force of the gear outside vehicle needle 5.
One end of second gear 7 offers the aperture 71 matched with the first transmission shaft 2, the other end be equipped with it is multiple circumferentially
The chisel teeth 72 of array distribution, circumference where the outer wall of chisel teeth 72 are identical as the diameter of second gear 7.The slave root of chisel teeth 72
Portion gradually comes to a point to top.The quantity of the chisel teeth 72 of the second gear 7 of present embodiment is 16.Second driving member band as a result,
When dynamic second gear 7 rotates, 72 top of chisel teeth acts perpendicularly to the flank of tooth of first gear 6, since first gear 6 is cone tooth
Wheel, the active force which just starts to act on first gear 6 is largely radial thrust, and only a little part is axial
Thrust, therefore, this kind of gear transmission structure can eliminate most of axial thrust when in use, exist relative to traditional whole process
For axial thrust, there is apparent progress.
As shown in Figure 18 and Figure 19, each chisel teeth 72 is by first surface 721, the second curved surface 722 and third curved surface 723
Three curved surfaces are enclosed with bottom surface.First surface 721, the second curved surface 722 and third curved surface 723 are connected with each other.First surface
721 are enclosed by sequentially connected first lines a, the second lines b and tri- sections of lines of third lines c.Second curved surface 722 by according to
Tri- sections of the first lines a, the 4th lines d and the 5th lines e lines of secondary connection are enclosed.Third curved surface 723 is by the second lines
B, the 4th lines d is enclosed, and third curved surface 723 and the outer wall of second gear 7 are linked together.First surface 721 and the second song
Face 722 intersects at the first lines a, first surface 721 and the second curved surface 722 and is symmetrical set along plane where the first lines a.
The first lines a, the second lines b and the 4th lines d of present embodiment are the circular arc of convex, third lines c, the 5th lines
E is straight line.
Due to present embodiment first gear 6 and second gear 7 special designing so that second gear 7 rotate when pair
The axial thrust that first gear 6 generates largely is eliminated, to greatly reduce the friction between bearing and vehicle needle 5, and then is improved
The service life of bearing 12.
The present invention partially removes the gear for having even completely eliminated and being sheathed on outside vehicle needle 5 by changing gear fit structure
Axial force, substantially reduce the friction between bearing, improve the service life of bearing 12；Meanwhile greatly reducing heat
The generation of amount, and then the dosage that cooling water is used in surgical procedure is reduced, water consumption is few, and operating surface is just seen clearly, indirectly
A height clearly operating space is provided to doctor.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (10)
1. dental handpiece speedup bender, including head (1), the first transmission shaft (2) and second driving shaft (3), first transmission
One end of axis (2) is connect with head (1), and the other end and second driving shaft (3) are sequentially connected, first transmission shaft (2) and the
Two transmission shafts (3) have angle, which is characterized in that are equipped with vehicle needle (5) in the head (1), the periphery set of the vehicle needle (5)
Equipped with bearing (12) and first gear (6), one end that first transmission shaft (2) connect with head (1) is equipped with second gear
(7), the second gear (7) is engaged with first gear (6), has folder between the first gear (6) and second gear (7)
Angle, the second gear (7) can at least eliminate the part axial thrust generated to first gear (6).
2. dental handpiece speedup bender according to claim 1, which is characterized in that the first gear (6) is spur gear
Or bevel gear.
3. dental handpiece speedup bender according to claim 2, which is characterized in that open one end of the second gear (7)
Equipped with the aperture (71) matched with the first transmission shaft (2), the other end is equipped with multiple circumferentially array distributions and dissipates outward
Chisel teeth (72), the chisel teeth (72) gradually come to a point from root to top.
4. dental handpiece speedup bender according to claim 3, which is characterized in that the chisel teeth (72) is by first surface
(721), (723) three curved surfaces of the second curved surface (722) and third curved surface are enclosed, the first surface (721), the second curved surface
(722) it is connected with each other with third curved surface (723), the first surface (721) is by the first lines (a), the second lines (b) and third
Three sections of lines of lines (c) are enclosed, and second curved surface (722) is by the first lines (a), the 4th lines (d) and the 5th lines
(e) three sections of lines are enclosed, and the first surface (721) and the second curved surface (722) intersect at the first lines (a), and described the
One curved surface (721) and the second curved surface (722) are symmetrical arranged along plane where the first lines (a), first lines (a), second
Lines (b), third lines (c), the 4th lines (d) and the 5th lines (e) are the circular arc of convex.
5. dental handpiece speedup bender according to claim 1, which is characterized in that open one end of the second gear (7)
Equipped with the aperture (71) matched with the first transmission shaft (2), the other end is equipped with the chisel teeth (72) of multiple circumferentially array distributions,
The chisel teeth (72) gradually comes to a point from root to top.
6. dental handpiece speedup bender according to claim 5, which is characterized in that the chisel teeth (72) is by first surface
(721), (723) three curved surfaces of the second curved surface (722) and third curved surface are enclosed, the first surface (721), the second curved surface
(722) it is connected with each other with third curved surface (723), the first surface (721) is by the first lines (a), the second lines (b) and third
Three sections of lines of lines (c) are enclosed, and second curved surface (722) is by the first lines (a), the 4th lines (d) and the 5th lines
(e) three sections of lines are enclosed, and the first surface (721) and the second curved surface (722) intersect at the first lines (a), and described the
One curved surface (721) and the second curved surface (722) are symmetrical arranged along plane where the first lines (a), first lines (a), second
Lines (b) and the 4th lines (d) are the circular arc of convex, and the third lines (c) and the 5th lines (e) are straight line.
7. described in any item dental handpiece speedup benders according to claim 1~6, which is characterized in that further include transition axis
(4), one end Yu the first transmission shaft (2) transmission connection of the transition axis (4), the other end of the transition axis (4) and second pass
The end of moving axis (3) transmission connection, first transmission shaft (2) is equipped with third gear (21), and the second driving shaft (3) is equipped with
4th gear (31), the both ends of the transition axis (4) are respectively equipped with the 5th gear (41) and the 6th gear (42), the third tooth
Wheel (21) is meshed with the 5th gear (41), and the 4th gear (31) and the 6th gear (42) are meshed.
8. dental handpiece speedup bender according to claim 7, which is characterized in that the third gear (21) and the 5th tooth
Taking turns (41) is bevel gear, and the 4th gear (31) is internal gear, and the 6th gear (42) is spur gear.
9. dental handpiece speedup bender according to claim 7, which is characterized in that further include sequentially connected first shell
(8), elbow (9) and second shell (10), the first shell (8) are connected with head (1), first transmission shaft (2), second
Transmission shaft (3) and transition axis (4) are respectively positioned in the space that first shell (8), elbow (9) and second shell (10) are formed.
10. dental handpiece speedup bender according to claim 9, which is characterized in that be equipped with supporting block in the elbow (9)
(91), the transition axis (4) is supported by supporting block (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716060.6A CN110368107A (en) | 2019-08-05 | 2019-08-05 | Dental handpiece speedup bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716060.6A CN110368107A (en) | 2019-08-05 | 2019-08-05 | Dental handpiece speedup bender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110368107A true CN110368107A (en) | 2019-10-25 |
Family
ID=68258117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910716060.6A Pending CN110368107A (en) | 2019-08-05 | 2019-08-05 | Dental handpiece speedup bender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110368107A (en) |
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| CN111317583A (en) * | 2019-11-11 | 2020-06-23 | 佛山市耐可士医疗器械有限公司 | Dental handheld machine with large torque force |
| CN113007280A (en) * | 2021-02-23 | 2021-06-22 | 常州赛乐医疗技术有限公司 | Speed-increasing dental hand bender |
| CN114099014A (en) * | 2021-11-30 | 2022-03-01 | 桂林市啄木鸟医疗器械有限公司 | Dental hand bender with adjustable handpiece angle |
| WO2023124031A1 (en) * | 2021-12-29 | 2023-07-06 | 谭锦辉 | Dental polishing prophy angle |
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| CN111317583A (en) * | 2019-11-11 | 2020-06-23 | 佛山市耐可士医疗器械有限公司 | Dental handheld machine with large torque force |
| CN113007280A (en) * | 2021-02-23 | 2021-06-22 | 常州赛乐医疗技术有限公司 | Speed-increasing dental hand bender |
| CN114099014A (en) * | 2021-11-30 | 2022-03-01 | 桂林市啄木鸟医疗器械有限公司 | Dental hand bender with adjustable handpiece angle |
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