CN205612520U - Medical flared handle abrasive drilling - Google Patents
Medical flared handle abrasive drilling Download PDFInfo
- Publication number
- CN205612520U CN205612520U CN201620327686.XU CN201620327686U CN205612520U CN 205612520 U CN205612520 U CN 205612520U CN 201620327686 U CN201620327686 U CN 201620327686U CN 205612520 U CN205612520 U CN 205612520U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- drive mechanism
- curved handle
- abrasive drilling
- cutter
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a medical flared handle abrasive drilling, including drive mechanism, the cutter guiding mechanism who is connected with drive mechanism, and be located the outer shell mechanism of drive mechanism and cutter guiding mechanism, shell mechanism is equipped with the flared handle shell, drive mechanism is equipped with the transmission shaft, be angle setting's main shaft with the transmission shaft, and a pair of intermeshing's skewed tooth wheelset, skewed tooth wheelset one end is connected with the transmission shaft, the other end is connected with the main shaft, drive mechanism includes still that adjacent cover establishes at main epaxial main shaft bearing and main shaft spring, the main shaft spring supports tightly with main shaft bearing each other, main shaft and main shaft bearing are the close -fitting setting, the skewed tooth wheelset is in the engagement all the time. This medical flared handle abrasive drilling reduces the cost of manufacture through optimizing structure, adopts oblique gear meshing transmission, operates steadily, realizes the angle setting on the transmission structure, can effectively reduce generating heat in the motion process, vibrations and noise, and the structure is small and exquisite, and the flared handle setting feels splendid, provides many moneys cutter guiding mechanism, adaptable more operation occasions.
Description
Technical field
This utility model belongs to medical instruments field, particularly to a kind of medical curved handle abrasive drilling.
Background technology
Along with the progress and development of medical science, the requirement for medical apparatus is more and more higher.In medical treatment bone surgery, typically
Miniature abrasive drilling is used to carry out the grinding of orthopaedics.The most similarity of abrasive drilling for orthopedics grinding is the highest in the market, but internal
Structure is the most far from each other.The particularly miniature abrasive drilling of curved handle, its structure within curved handle bending part is various, but generally exists
Problems with: the axial force that (1) uses helical gear to connect is relatively big, during high speed operation, the miniature abrasive drilling of curved handle heats up very fast, heating
More serious, it is impossible to work long hours；(2) bindiny mechanism of bending part is of a great variety, some employing internal tooth wheel discs and cross cone
Connecting, in some employings, spiral bevel gear connects, and the outer spiral bevel gear of some employings connects, these gears all exist structure complicated,
The problem needing to customize, cost is high, difficulty is big, it is crucial that they cannot calculate optimal gear parameter, therefore transmission
Unstable, inefficiency, and noise is relatively big, vibration is bigger；(3) at the spacing aspect of two gear engagements, great majority
Using two ends to be close to inwall by axle connection bearing and go to realize spacing, do so is to the distance precise requirements between two inwalls very
Height, greatly increases processing cost further, and later stage service wear can cause gear to engage less than rotating together
The risk of cutter.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of medical curved handle abrasive drilling, and it can effectively optimize, simplify structure,
Being substantially reduced cost, and stable drive, stock-removing efficiency is high.
For solving the problems referred to above, this utility model provides a kind of medical curved handle abrasive drilling, connects including drive mechanism and drive mechanism
The cutter guiding mechanism that connects and be positioned at the shell mechanism outside drive mechanism and cutter guiding mechanism, described shell mechanism is provided with
Curved handle shell, described drive mechanism be provided with the main shaft of power transmission shaft setting angled with power transmission shaft and a pair intermeshing
Bevel gear set, bevel gear set one end is connected with power transmission shaft, and the other end is connected with main shaft, and described drive mechanism also includes adjacent set
The main shaft bearing being located on main shaft and main shaft spring, main shaft spring mutually pushes against with main shaft bearing, and main shaft and main shaft bearing are tight
Arranging is put, and bevel gear set is in engagement all the time.
Additionally, this utility model also provides for following attached technical scheme:
Described main shaft and main shaft bearing are that close-fitting is arranged.
Described drive mechanism also includes steel-ball limiting ring that is adjacent with main shaft spring and that push against setting, is embedded in steel-ball limiting ring
Steel ball.
Described drive mechanism also include the first transmission shaft bearing, second driving shaft bearing and the side that are set on power transmission shaft with
The spacer ring that first transmission shaft bearing is adjacent and opposite side is adjacent with second driving shaft bearing.
The power transmission shaft that described drive mechanism also includes the connecting shaft being connected with power transmission shaft, is set on power transmission shaft and pushes against with connecting shaft
Spring.
Described drive mechanism also includes the cutter holding ring pressure ring that the cutter holding ring being set on main shaft coordinates with cutter holding ring,
And the cutter holding spring that one end and cutter holding ring pressure ring coordinate and the other end and main shaft coordinate, described main shaft is provided with and cutter
The main shaft draw-in groove that holding ring coordinates.
Described cutter guiding mechanism includes guiding axle housing that cutter, part be embedded in drive mechanism, be embedded in guiding axle housing in and mutually
Coordinate guide pin bushing, the guide pin bushing spring being set in outside guide pin bushing, be positioned at guide pin bushing two ends short spacer sleeve and with cutter and guide axle housing
The guide pin bushing bearing all coordinated.
Described shell mechanism also includes that the locking switch that the adapter sleeve being connected with curved handle shell coordinates with steel ball is connected with adapter sleeve
Movable shell and the detachable shell that is connected with movable shell, locking switch is provided with the locking switch card coordinated with steel ball
Groove, adapter sleeve be provided with coordinate with steel ball wear groove.
Described curved handle shell afterbody is provided with fluting.
Described bevel gear set includes two identical helical gears.
This utility model provides a kind of medical curved handle abrasive drilling, and it uses modularized design, facilitates cutter to dismount, reduce system
Making cost, by optimizing and simplifying frame for movement, close-fitting degree is high, and concentricity is higher, and it uses helical gear engaged transmission, makes
It realizes the angle on drive mechanism and arranges while operating steadily, the internal structure after simultaneously optimizing can make effectively to reduce motion
During heating, vibrations and noise, in external form, operable position is arranged substantially, allows people substantially can find out operability,
The most important thing is this medical curved handle abrasive drilling compact structure, grip part has certain angle of bend, and it is former according to ergonomics
Reason, angle of bend meets the grip angle of staff, and feel is splendid, and provides many moneys cutter guiding mechanism, is suitable for more
Surgical application.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of medical curved handle abrasive drilling in this utility model embodiment.
Fig. 2 is the exploded view of medical curved handle abrasive drilling in this utility model embodiment.
Fig. 3 is the partial appearance figure of medical curved handle abrasive drilling in this utility model embodiment.
Fig. 4 is the sectional view of this utility model Fig. 3.
Fig. 5 is locking switch and the structure chart of adapter sleeve in this utility model embodiment.
Detailed description of the invention:
Embodiment: as shown in Figures 1 to 4, this utility model provides the specific embodiment of a kind of medical curved handle abrasive drilling.This doctor
Include, with curved handle abrasive drilling, cutter guiding mechanism 200 that drive mechanism 100 is connected with drive mechanism 100 and be positioned at drive mechanism
100 and cutter guiding mechanism 200 outside shell mechanism 300, shell mechanism 300 is provided with curved handle shell 310, drive mechanism 100
It is provided with power transmission shaft 110 and the main shaft 120 of the angled setting of power transmission shaft 110 and a pair intermeshing bevel gear set 130,
Bevel gear set 130 one end is connected with power transmission shaft 110, and the other end is connected with main shaft 120.As it is shown on figure 3, bevel gear set 130
By two
Individual identical helical gear: first helical gear the 131, second helical gear 132 forms, each helical gear afterbody and power transmission shaft 110
Or main shaft 120 connected mode has multiple, the present embodiment all use pin 1 connect, the i.e. first helical gear 131 and main shaft 120
Being connected by pin, the second helical gear 132 and power transmission shaft are connected by pin.It is to say, the inside of this medical curved handle abrasive drilling
In structure, power transmission shaft 110 and main shaft 120 are real by a pair of identical angled engagement of helical gear in certain curved handle bending angle
Existing.In the present embodiment, the preferred parameter of helical gear 131 is as follows: modulus 0.5, the number of teeth 10, the facewidth 1, addendum coefficient 1,
Curved handle bending angle thus can be made to reach 15 °, need the high cost of customization relative to tradition and be difficult to control to the gear of gear parameter
For group, bevel gear set in this utility model 130 by the auxiliary positioning of internal miscellaneous part, the first helical gear 131 and the
Two helical gears 132 are always at engagement, substantially increase transmission accuracy and reduce cost.In concrete structure, first is oblique
The power to the second helical gear 132 direction that gear 131 is provided by main shaft 120 all the time, as being active force to the right in Fig. 3.
In structure on the left of first helical gear 131, drive mechanism 100 also includes the main shaft bearing 141 being set on main shaft 120
Axially adjacent in main shaft 120 with main shaft spring 142, main shaft bearing 141 and main shaft spring 142 and mutually push against, meanwhile, main
Axle 120 and main shaft bearing 141 cooperate, and in the present embodiment, preferred close-fitting is arranged so that main shaft 120 and main shaft bearing 141
Concentricity is preferable, and main shaft 120 is provided with flange on the left of main shaft bearing 141, limits main shaft bearing 141 to left movement, so
Main shaft bearing 141 can only drive main shaft 120 to move right under main shaft spring 142 elastic force effect.Drive mechanism 100 also includes
The steel-ball limiting ring 151 pushing against setting with main shaft spring 142 other end, the steel ball 152 being embedded in steel-ball limiting ring 151.Pass
Motivation structure 100 also includes the cutter holding that the cutter holding ring 161 being set on main shaft 120 coordinates with cutter holding ring 161
Ring pressure ring 162, and the cutter holding spring that one end and cutter holding ring pressure ring 162 coordinate and the other end and main shaft 120 coordinate
163.Main shaft 120 is column structure, is provided with the mounting groove installing cutter 210 near the inside of cutter guiding mechanism 200 one end
121, its surface is arranged with the main shaft draw-in groove coordinated with cutter holding ring 161, and cutter holding ring 161 is provided with matched tail
Portion 1611, for coordinating through main shaft draw-in groove 122 with cutter 210.Main shaft 120 is provided with and coordinates with cutter holding spring 163
Notch cuttype protruding.The high order end of drive mechanism 100 is provided with bearing 170, in conjunction with main shaft bearing 141, therefore at the first helical gear
131 left part, realize main shaft 120 and miscellaneous part determining in shell mechanism 300 by main shaft bearing 141, bearing 170
Position and cooperation, it is achieved high speed rotating during moment of torsion transmission.
With the first helical gear 131 and the second helical gear 132 junction as boundary, drive mechanism 100 both sides structure is 15 ° of bendings,
In structure on the right side of second helical gear 132, including first transmission shaft bearing the 111, second transmission being set on power transmission shaft 110
Axle bearing 112 and side is adjacent with the first transmission shaft bearing 111 and opposite side adjacent with second driving shaft bearing 112 between
Spacer ring 113.It is additionally provided with the bearing coordinated with it spacing 114 in second driving shaft bearing 112 side, coordinates with shell mechanism 300
The first transmission shaft bearing 111 and second driving shaft bearing 112 can be limited in axial position.The first transmission shaft bearing 111 He
Between second driving shaft bearing 112, interpolation spacer ring 113 can realize the axial force of bearing outer ring axle is equilibrant, reduces by the first biography
Moving axis bearing 111 and second driving shaft bearing 112 be the risk of Internal and external cycle dislocation under the active force of bearing spacing 114, and subtracts
Few when running up in bearing steel ball oil clearance be consumed and run out bearing inner-outer sleeve and produce the risk of big calorimetric.General first transmission
Axle bearing 111 is two identical bearings with second driving shaft bearing 112.Wherein, the first transmission shaft bearing 111, second passes
Moving axis bearing 112 and power transmission shaft 110 are close-fitting and arrange, it is ensured that the concentricity of power transmission shaft；First transmission shaft bearing 111,
Second driving shaft bearing 112 and shell mechanism 300 are interference fits, convenient installation.
Drive mechanism 100 also includes the connecting shaft 115 being connected with power transmission shaft 110 right-hand member, be set on power transmission shaft 110 and with even
Power transmission shaft spring 116 that spindle 115 pushes against and be set in power transmission shaft 110 and the main shaft adapter sleeve of connecting shaft 115 junction
Ring 117.Wherein power transmission shaft 110 and connecting shaft 115 can be connected by screw, threaded, welding, pin connection etc. multiple
Connected mode, the present embodiment is connected by pin 1.Connecting shaft 115 is connected with the output shaft (figure has no) of external motor, with
Accept the moment of torsion of motor transmission.The moment of torsion pass order of whole device is: connecting shaft 115, power transmission shaft 110, bevel gear set 130,
Main shaft 120, cutter guiding mechanism 200.
As in figure 2 it is shown, cutter guiding mechanism 200 include cutter 210, part be embedded in drive mechanism 100 guiding axle housing 220,
The guide pin bushing 230 that is embedded in guiding axle housing 220 and cooperate, to be set in guide pin bushing 230 outer and be embedded in and guide leading in axle housing 220
Sleeve spring 240, be embedded in guide axle housing 220 and be arranged in pairs in guide pin bushing 230 two ends short spacer sleeve 250 and with cutter 210
With the guide pin bushing bearing 260 guiding axle housing 220 conjunction.Cutter 210 head is provided with drill bit 211, and abrasive drilling is generally round bur, cutter
210 afterbodys are provided with installation portion 212, and this installation portion 212 is arranged in the mounting groove 121 of main shaft 120, by cutter holding ring
The clamping of 161 afterbodys and fix.This medical curved handle abrasive drilling can be equipped with the cutter guiding mechanism 200 of many moneys different length, can be used for full
The operation demand that foot is different.
Shell mechanism 300 includes aforesaid curved handle shell 310, and it is grip part, also includes the company being connected with curved handle shell 310
Female connector 320, the locking switch 330 being positioned at outside adapter sleeve 320 and coordinating with steel ball 152, movable with what adapter sleeve 320 was connected
Shell 340 and the detachable shell 350 being connected with movable shell 340.As it is shown in figure 5, adapter sleeve 320 is provided with and steel
What ball 152 coordinated wears groove 321, and locking switch 330 is provided with the locking switch draw-in groove 331 coordinated with steel ball 152.Steel-ball limiting ring
151, for the relation of cooperating between steel ball 152, adapter sleeve 320 and locking switch 330, by the rotation of locking switch 330
Control steel ball 152 and promote steel-ball limiting ring 151 release and spacing, thus control the drive mechanism 100 locking to cutter 210
With open.Locking switch 330 and detachable shell 350 surface in shell mechanism 300 are that hollow out is arranged, with shell mechanism 300
Other parts have significantly difference, operator can be allowed the most just to find out this two-part operability.Curved handle shell
310 and adapter sleeve 320 can use clamping, the mode such as be spirally connected, the present embodiment uses clamping.Curved handle shell 310 is the most roomy,
The inwall coordinated with drive mechanism 100 except setting, i.e. inwall are arranged and the first transmission shaft bearing 111, second driving shaft bearing
112, spacer ring 113, the auxiliary section of bearing spacing 114, be additionally provided with fluting at its afterbody, can alleviate the weight of complete machine.
The above is preferred implementation of the present utility model, it is noted that for those skilled in the art
For, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications
It is also considered as protection domain of the present utility model.
Claims (10)
1. a medical curved handle abrasive drilling, the cutter guiding mechanism being connected with drive mechanism including drive mechanism and be positioned at biography
Shell mechanism outside motivation structure and cutter guiding mechanism, described shell mechanism is provided with curved handle shell, and described drive mechanism is provided with biography
Moving axis and the main shaft of the angled setting of power transmission shaft and a pair intermeshing bevel gear set, bevel gear set one end and transmission
Axle connects, and the other end is connected with main shaft, it is characterised in that: described drive mechanism also includes the adjacent main shaft being set on main shaft
Bearing and main shaft spring, main shaft spring mutually pushes against with main shaft bearing, and main shaft and main shaft bearing are that close-fitting is arranged, bevel gear set
All the time engagement it is in.
Medical curved handle abrasive drilling the most according to claim 1, it is characterised in that: described main shaft and main shaft bearing are that close-fitting sets
Put.
Medical curved handle abrasive drilling the most according to claim 1, it is characterised in that: described drive mechanism also includes and main shaft spring
Adjacent and push against the steel-ball limiting ring of setting, the steel ball that is embedded in steel-ball limiting ring.
Medical curved handle abrasive drilling the most according to claim 1, it is characterised in that: described drive mechanism also includes being set in transmission
The first transmission shaft bearing, second driving shaft bearing and side on axle be adjacent with the first transmission shaft bearing and opposite side and second
The spacer ring that transmission shaft bearing is adjacent.
Medical curved handle abrasive drilling the most according to claim 4, it is characterised in that: described drive mechanism also includes with power transmission shaft even
The connecting shaft connect, the power transmission shaft spring being set on power transmission shaft and pushing against with connecting shaft.
Medical curved handle abrasive drilling the most according to claim 1, it is characterised in that: described drive mechanism also includes being set in main shaft
On the cutter holding ring pressure ring that coordinates with cutter holding ring of cutter holding ring, and one end and cutter holding ring pressure ring coordinate and
The cutter holding spring that the other end and main shaft coordinate, described main shaft is provided with the main shaft draw-in groove coordinated with cutter holding ring.
Medical curved handle abrasive drilling the most according to claim 1, it is characterised in that: described cutter guiding mechanism includes cutter, portion
Point be embedded in drive mechanism guide axle housing, be embedded in guiding axle housing and cooperate guide pin bushing, the guide pin bushing bullet that is set in outside guide pin bushing
Spring, the short spacer sleeve being positioned at guide pin bushing two ends and the guide pin bushing bearing all coordinated with cutter and guiding axle housing.
Medical curved handle abrasive drilling the most according to claim 3, it is characterised in that: described shell mechanism also includes and curved handle shell
Movable shell that the locking switch that coordinates with steel ball of adapter sleeve connected is connected with adapter sleeve and being connected with movable shell
Detachable shell, locking switch is provided with the locking switch draw-in groove coordinated with steel ball, adapter sleeve be provided with coordinate with steel ball wear groove.
Medical curved handle abrasive drilling the most according to claim 8, it is characterised in that: described curved handle shell afterbody is provided with fluting.
Medical curved handle abrasive drilling the most according to claim 1, it is characterised in that: described bevel gear set include two identical
Helical gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620327686.XU CN205612520U (en) | 2016-04-19 | 2016-04-19 | Medical flared handle abrasive drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620327686.XU CN205612520U (en) | 2016-04-19 | 2016-04-19 | Medical flared handle abrasive drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205612520U true CN205612520U (en) | 2016-10-05 |
Family
ID=57029637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620327686.XU Expired - Fee Related CN205612520U (en) | 2016-04-19 | 2016-04-19 | Medical flared handle abrasive drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205612520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105726084A (en) * | 2016-04-19 | 2016-07-06 | 苏州益诺斯医疗科技有限公司 | Medical flared handle abrasive drill |
-
2016
- 2016-04-19 CN CN201620327686.XU patent/CN205612520U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105726084A (en) * | 2016-04-19 | 2016-07-06 | 苏州益诺斯医疗科技有限公司 | Medical flared handle abrasive drill |
| CN105726084B (en) * | 2016-04-19 | 2019-02-15 | 苏州益诺斯医疗科技有限公司 | A kind of medical curved handle abrasive drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20200419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |