CN204839642U - Medical drag saw - Google Patents
Medical drag saw Download PDFInfo
- Publication number
- CN204839642U CN204839642U CN201520535713.8U CN201520535713U CN204839642U CN 204839642 U CN204839642 U CN 204839642U CN 201520535713 U CN201520535713 U CN 201520535713U CN 204839642 U CN204839642 U CN 204839642U
- Authority
- CN
- China
- Prior art keywords
- cutter
- axis
- spiral bevel
- bevel gear
- guide
- 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
Links
Abstract
The utility model discloses a medical drag saw, it includes: driving shaft by electromotor drive, install at the epaxial initiative arc tooth bevel gear of initiative, with the driven driven arc tooth bevel gear of initiative arc tooth bevel gear meshing, with driven arc tooth bevel gear fixed connection and with driving shaft looks vertically eccentric shaft, the cover is established at the epaxial pendulum rod of off -centre, the cutter guiding axle that is connected with the pendulum rod, the friction sleeve in the cutter guiding axle outside is established to the cover, the setting just realizes the reciprocal linear motion's of axial axial ball between cutter guiding axle and friction sleeve, stretch into the cutter fixed axle of cutter guiding axle inner chamber, and by the fixed cutter of cutter fixed axle. The utility model provides an unicity of reciprocating motion structure, the inaccuracy of direction of motion, reduce loaded down with trivial details dismouting step, simple structure raises the efficiency, and reduce cost improves job stabilization nature.
Description
Technical field
This utility model relates to a kind of medical reciprocating saw.
Background technology
Existing medical reciprocating saw is used for the saw bone in bone surgery, its structure mainly contains screw-drive mechanism, cam drive, rack and pinion drive mechanism and crank block drive mechanism etc., and cutter guiding mechanism mainly contains inclined-plane retaining mechanism and eccentric retaining mechanism.By the shift fork reciprocating sow that application is more, larger noise can be produced during its motion, and inefficiency, long-time use can be made us feeling under the weather, and reciprocating mechanism is comparatively single, and guiding is not very accurate, the scope of application is little, complex structure, efficiency is not high, so need the structure optimizing reciprocating sow.
Utility model content
This utility model object is: provide a kind of medical reciprocating saw, to reduce noise, increases work efficiency, and guarantees that guiding accurately.
The technical solution of the utility model is: a kind of medical reciprocating saw, it comprises: the driving shaft driven by motor, be arranged on the driving spiral bevel on driving shaft, with the driven spiral bevel gear of driving spiral bevel engaged transmission, be fixedly connected with driven spiral bevel gear and the eccentric shaft perpendicular with driving shaft, be set in the fork on eccentric shaft, the cutter axis of guide be connected with fork, be set in the friction sleeve outside the cutter axis of guide, be arranged on the adapter sleeve outside friction sleeve, to be arranged between the cutter axis of guide and friction sleeve and to realize the axial ball of axial reciprocating rectilinear motion, stretch into the cutter fixed axis of cutter axis of guide inner chamber, and by cutter that cutter fixed axis is fixed.
On the basis of technique scheme, comprise following attached technical scheme further:
Described driving shaft, fork, the cutter axis of guide, cutter fixed axis are all on the same axis.
Described eccentric shaft and driven spiral bevel gear are that interference fit is connected.
It comprises the spring being arranged on detent ball between cutter and cutter fixed axis and resiliency supported detent ball.
It comprises the lock sleeve that is set in outside cutter fixed axis and to be set in outside lock sleeve and the rotary switch cover that can screw, and wherein lock sleeve is provided with the gathering sill of collecting detent ball.
It comprises leading axle and moves back and forth and pilot hole between the cutter axis of guide and friction sleeve to ball.
Described driving shaft, driving spiral bevel, driven spiral bevel gear, eccentric shaft, fork form drive mechanism, and the cutter axis of guide, friction sleeve, axial ball, cutter fixed axis form cutter guiding mechanism, and drive mechanism is connected by connecting portion with cutter guiding mechanism, and in connecting portion, there is the inner chamber of collecting driving spiral bevel, driven spiral bevel gear, eccentric shaft and fork.
This utility model advantage is:
This utility model solves the unicity of reciprocating structure, the inaccuracy of the direction of motion; Reduce loaded down with trivial details dismounting step, structure is simple, raises the efficiency, reduces costs, and improves job stability.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further described:
Fig. 1 is axonometric chart of the present utility model;
Fig. 2 is the schematic diagram of drive mechanism and cutter guiding mechanism in this utility model;
Fig. 3 is the sectional view in this utility model under a visual angle;
Fig. 4 is the sectional view in this utility model under another visual angle.
Detailed description of the invention
Embodiment: as Figure 1-4, this utility model provides a kind of specific embodiment of medical reciprocating saw, it comprises: the driving shaft 100 driven by motor, be arranged on the driving spiral bevel 102 on driving shaft 100, with the driven spiral bevel gear 104 of driving spiral bevel 102 engaged transmission, be fixedly connected with driven spiral bevel gear 104 and the eccentric shaft 106 perpendicular with driving shaft 100, be set in the fork 108 on eccentric shaft 106, the cutter axis of guide 21 be connected with fork 108, be set in the friction sleeve 23 outside the cutter axis of guide 21, be arranged on the adapter sleeve outside friction sleeve, to be arranged between the cutter axis of guide 21 and friction sleeve 23 and to realize the axial ball 25 of axial reciprocating rectilinear motion, stretch into the cutter fixed axis 22 of the cutter axis of guide 21 inner chamber, and by the fixing cutter 20 of cutter fixed axis 22.Driving shaft 100, fork 108, the cutter axis of guide 21, cutter fixed axis 22 are all on the same axis.Eccentric shaft 106 is with driven spiral bevel gear 104 for interference fit is connected, and driving and driven spiral bevel gear 102 is small mode number spiral bevel gear.Wherein driving shaft 100, driving spiral bevel 102, driven spiral bevel gear 104, eccentric shaft 106, fork 108 form drive mechanism 1, and the cutter axis of guide 21, friction sleeve 23, axial ball 25, cutter fixed axis 22 form cutter guiding mechanism 2, and drive mechanism 1 is connected by connecting portion 10 with cutter guiding mechanism 2, and in connecting portion 10, there is the inner chamber 12 of collecting driving spiral bevel 102, driven spiral bevel gear 104, eccentric shaft 106 and fork 108.
Preferably, it comprises the spring 28 being arranged on detent ball 26 between cutter 20 and cutter fixed axis 22 and resiliency supported detent ball 26 further.
Preferably, it comprises the lock sleeve 24 that is set in outside cutter fixed axis 22 further and to be set in outside lock sleeve 24 and the rotary switch that can screw cover 29, and wherein lock sleeve 24 is provided with the gathering sill of collecting detent ball 26.
Preferably, it comprises leading axle further and moves back and forth and pilot hole between the cutter axis of guide 21 and friction sleeve 23 to ball 25.
During work, motor drives driving shaft 100 to rotate, driving spiral bevel 102 is impelled to rotate, driven spiral bevel gear 104 is driven to rotate by gears meshing, thus rotary motion is passed to eccentric shaft 106, in the process of engagement, achieve commutation, fork 108 is enclosed within eccentric shaft 106 simultaneously, make similar to cam mechanism, the cutter axis of guide 21 is connected with fork 108 by straight pin 109.The cutter axis of guide 21 interts in friction sleeve 23, therebetween placed axial ball 25, the cutter axis of guide 21 realizes level and smooth linear reciprocating motion, act on common realization by the detent ball 26 in axial ball 25 and lock sleeve 24 gathering sill, and the motion of detent ball 26 in gathering sill achieves guide function, the cam portion of eccentric shaft 106 is that in the vertical direction rotates, therefore moving back and forth occurs in transversely, when eccentric shaft 106 rotates, the cutter axis of guide 21 realizes horizontal reciprocating motion by with cutter fixed axis 22.Cutter 20 is clamped by cutter fixed axis 22, hole on cutter fixed axis 22 is used for placement positioning ball 26 and spring 28, thus cutter 20 is stuck on cutter fixed axis 22, now turn rotary switch cover 29, rotary switch cover 29 drives detent ball 26 to rotate, because detent ball 26 is placed on inside lock sleeve 24 groove, therefore lock sleeve 24 is driven to move and then lock cutter 20, this structure is simple, convenient disassembly, and select small mode number spiral bevel gear, stock-removing efficiency is high, flank of tooth grinding can be carried out to reduce sound, big speed ratio transmission can be realized.
Certain above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalent transformations of doing according to the spirit of this utility model main technical schemes or modification, all should be encompassed within protection domain of the present utility model.
Claims (7)
1. a medical reciprocating saw, it is characterized in that it comprises: the driving shaft (100) driven by motor, be arranged on the driving spiral bevel (102) on driving shaft (100), with the driven spiral bevel gear (104) of driving spiral bevel (102) engaged transmission, be fixedly connected with driven spiral bevel gear (104) and the eccentric shaft (106) perpendicular with driving shaft (100), be set in the fork (108) on eccentric shaft (106), the cutter axis of guide (21) be connected with fork (108), be set in the friction sleeve (23) in the cutter axis of guide (21) outside, be arranged on the adapter sleeve in friction sleeve (23) outside, to be arranged between the cutter axis of guide (21) and friction sleeve (23) and to realize the axial ball (25) of axial reciprocating rectilinear motion, stretch into the cutter fixed axis (22) of the cutter axis of guide (21) inner chamber, and by the fixing cutter (20) of cutter fixed axis (22).
2. a kind of medical reciprocating saw according to claim 1, is characterized in that: described driving shaft (100), fork (108), the cutter axis of guide (21), cutter fixed axis (22) are all on the same axis.
3. a kind of medical reciprocating saw according to claim 2, is characterized in that: described eccentric shaft (106) with driven spiral bevel gear (104) for interference fit is connected.
4. a kind of medical reciprocating saw according to claim 1, is characterized in that it comprises the spring (28) being arranged on detent ball (26) between cutter (20) and cutter fixed axis (22) and resiliency supported detent ball (26).
5. a kind of medical reciprocating saw according to claim 4, it is characterized in that it comprise be set in cutter fixed axis (22) outside lock sleeve (24) and be set in lock sleeve (24) outside and the rotary switch cover (29) that can screw, wherein lock sleeve (24) be provided with collecting detent ball (26) gathering sill.
6. a kind of medical reciprocating saw as claimed in claim 1, is characterized in that it comprises leading axle and moves back and forth and the pilot hole be positioned between the cutter axis of guide (21) and friction sleeve (23) to ball (25).
7. a kind of medical reciprocating saw as claimed in claim 1, it is characterized in that: described driving shaft (100), driving spiral bevel (102), driven spiral bevel gear (104), eccentric shaft (106), fork (108) forms drive mechanism (1), and the cutter axis of guide (21), friction sleeve (23), axial ball (25), cutter fixed axis (22) forms cutter guiding mechanism (2), and drive mechanism (1) is connected by connecting portion (10) with cutter guiding mechanism (2), and in connecting portion (10), have collecting driving spiral bevel (102), driven spiral bevel gear (104), eccentric shaft (106), with the inner chamber (12) of fork (108).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520535713.8U CN204839642U (en) | 2015-07-22 | 2015-07-22 | Medical drag saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520535713.8U CN204839642U (en) | 2015-07-22 | 2015-07-22 | Medical drag saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204839642U true CN204839642U (en) | 2015-12-09 |
Family
ID=54730247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520535713.8U Expired - Fee Related CN204839642U (en) | 2015-07-22 | 2015-07-22 | Medical drag saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204839642U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105078539A (en) * | 2015-07-22 | 2015-11-25 | 苏州益诺斯医疗科技有限公司 | Medical reciprocating saw |
| CN106725706A (en) * | 2016-12-23 | 2017-05-31 | 诺鑫（南通）医疗技术有限公司 | A kind of medical power reciprocating saw blade drive mechanism |
-
2015
- 2015-07-22 CN CN201520535713.8U patent/CN204839642U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105078539A (en) * | 2015-07-22 | 2015-11-25 | 苏州益诺斯医疗科技有限公司 | Medical reciprocating saw |
| CN106725706A (en) * | 2016-12-23 | 2017-05-31 | 诺鑫（南通）医疗技术有限公司 | A kind of medical power reciprocating saw blade drive mechanism |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20200722 |