CN107947455A - A kind of hospital handheld electric drill - Google Patents
A kind of hospital handheld electric drill Download PDFInfo
- Publication number
- CN107947455A CN107947455A CN201711429898.4A CN201711429898A CN107947455A CN 107947455 A CN107947455 A CN 107947455A CN 201711429898 A CN201711429898 A CN 201711429898A CN 107947455 A CN107947455 A CN 107947455A
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- Prior art keywords
- output shaft
- planetary gear
- bearing
- planet carrier
- rotor
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- 238000005538 encapsulation Methods 0.000 claims abstract description 32
- 230000000712 assembly Effects 0.000 claims abstract description 28
- 238000000429 assembly Methods 0.000 claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 239000011324 bead Substances 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1613—Component parts
- A61B17/162—Chucks or tool parts which are to be held in a chuck
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1613—Component parts
- A61B17/1628—Motors; Power supplies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1613—Component parts
- A61B17/1633—Sleeves, i.e. non-rotating parts surrounding the bit shaft, e.g. the sleeve forming a single unit with the bit shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
- H02K7/145—Hand-held machine tool
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Oral & Maxillofacial Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Dentistry (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Public Health (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a kind of hospital handheld electric drill, including casing, fast encapsulation, motor stator, rotor, reducing gear, output shaft, chuck mechanism, Quick-dismantling mechanism, regulating module and motor driving plate；Fast-assembling is sheathed on the left part of casing；Motor stator is arranged on the right part of chassis cavity；Rotor is arranged in motor stator, and is sheathed on machine shaft；Rotor is in hollow-core construction, and connects the input terminal of reducing gear；Reducing gear is set on output shaft, and the output terminal connection output shaft of reduction assemblies；The left part of output shaft is stretched into the inner cavity of fast encapsulation；The afterbody connection output shaft of chuck mechanism, and chuck mechanism is put on by Quick-dismantling mechanism installed in fast-assembling；Chuck mechanism connects output shaft；Regulating module and motor driving plate are in the handle of casing.Output of vibration amplitude of the present invention is smaller, and greatly reduce medical equipment significantly shakes the operation risk brought, and chuck mechanism is convenient for disassembly and assembly, quick.
Description
Technical field
The present invention relates to a kind of hospital handheld electric drill.
Background technology
Hospital handheld electric drill is in modern medical service using extensive.Hospital handheld electric drill its mainly by decelerating motor and collet
Form, existing decelerating motor be usually all by multi-stage gear combine realize slow down, there are problems, for example, because volume compared with
Greatly, vibration amplitude is big, noise is big, train of reduction gears is unstable etc..Therefore, it is necessary to design a kind of small, constitutionally stable
Hospital handheld electric drill.
The content of the invention
The object of the present invention is to provide a kind of small, constitutionally stable hospital handheld electric drill.
Realizing the technical solution of the object of the invention is：A kind of hospital handheld electric drill, including casing, fast encapsulation, motor stator,
Rotor, reducing gear, output shaft, chuck mechanism, Quick-dismantling mechanism, regulating module and motor driving plate；The fast-assembling
It is sheathed on the left part of casing；The motor stator is arranged on the right part of chassis cavity；The rotor is arranged in motor stator, and
And it is sheathed on machine shaft；The rotor is in hollow-core construction, and connects the input terminal of reducing gear；The gear reducer
Structure is set on output shaft, and the output terminal connection output shaft of reduction assemblies；The left part of the output shaft stretches into fast encapsulation
In inner cavity；The afterbody connection output shaft of the chuck mechanism, and chuck mechanism is installed on fast encapsulation by Quick-dismantling mechanism
On；The chuck mechanism connects output shaft；Regulating module and the motor driving plate is in the handle of casing.
The reducing gear includes the first planetary gear reduction assemblies, sun gear and second level planetary gear reduction assemblies；It is described
The input terminal connection rotor of first order planetary gear reduction assemblies, output terminal connection sun gear；The sun gear is set in defeated
On shaft；The input terminal connection sun gear of the second level planetary gear reduction assemblies, output terminal connection output shaft.
The first order planetary gear reduction assemblies include first order planet carrier and first order planetary gear；The first order planet
Frame is set on sun gear, and inner ring is engaged with sun gear；Circumferentially be uniformly provided with the first order planet carrier it is multiple with
The vertical first rotating shaft of first order planet carrier side wall；The first order planetary gear is equipped with multiple, and is respectively sleeved at each the
In one shaft；Internal tooth is distributed along the circumference with the inner peripheral surface of the casing；The first order planetary gear respectively with internal tooth and motor
Rotor engages.
In first order planet carrier and in the first rotating shaft of the first order planet carrier of the first order planetary gear reduction assemblies
Gasket is equipped between primary planet wheel；The first rotating shaft is equipped with the baffle ring of limitation first order planetary gear axial movement.
The second planetary gear reduction assemblies include second level planet carrier and the second planetary gear；The second level planet carrier with
The tooth engagement being evenly distributed on output shaft side face；Multiple and second level row is circumferentially uniformly provided with the second level planet carrier
The second vertical shaft of carrier side wall；The second level planetary gear is equipped with multiple, and is respectively sleeved in each second shaft；
Second planetary gear is engaged with the internal tooth and sun gear of casing respectively.
In the second planet carrier and the second level in second shaft of the second level planet carrier of the second planetary gear reduction assemblies
Gasket is equipped between planetary gear；Second shaft is equipped with the baffle ring of limitation the second planetary gear axial movement.
Further include output shaft runner assembly and rotor runner assembly；The output shaft runner assembly includes clutch shaft bearing, the
Two bearings and 3rd bearing；The clutch shaft bearing and second bearing are arranged in the inner peripheral surface of fast-assembling set, and clutch shaft bearing and
The inner ring of second bearing is set in the left part of output shaft；The rear end cap of boring is equipped with the right end inner cavity of the casing；
The 3rd bearing is arranged on the inner peripheral surface of rear end cap, and the inner ring of 3rd bearing is set in the right part of output shaft；Described turn
Sub- runner assembly includes fourth bearing and 5th bearing；The casing is set on the inner peripheral surface between motor stator and reducing gear
There is the middle part spacer block of boring；The fourth bearing is arranged on the inner peripheral surface of middle part spacer block, and inner ring is set in motor and turns
On the left end of son；The 5th bearing is arranged on the inner peripheral surface of rear end cap, and inner ring is set in the right part of rotor.
The Quick-dismantling mechanism includes front nut, spring, compression bead set and steel ball；The right part of the front nut and fast encapsulation
Outer wall thread connection, gap is equipped between left part and fast encapsulation；The compression bead set is slided with the fast encapsulation outer wall on the left of front nut
Dynamic connection；The spring is set on the outer wall between fast-assembling set and front nut；The fast-assembling is put on is evenly equipped with through hole vertically；
The steel ball is arranged in through hole, and compression bead set promotes steel ball steel ball is blocked chuck mechanism.
The chuck mechanism includes collet connector sleeve, collet connecting rod and collet；The collet connector sleeve stretches into fast encapsulation
Inner cavity in, the outer wall of collet connector sleeve is equipped with the hemispherical groove coordinated with steel ball；Set in the collet connector sleeve inner cavity
There is 6th bearing；The inner ring of the collet connecting rod and 6th bearing is fixed, both ends difference connecting clip and output shaft.
Further include battery case；The battery case is installed on the handle base of casing；The battery of the battery case is motor
Driving plate is powered；The regulating module and motor stator are electrically connected with motor driving plate.
Above-mentioned technical proposal is employed, the present invention has following beneficial effect：(1) reducing gear and motor of the invention
Integrated design, greatly reduces overall volume, is easily installed and is used on hand-held medical equipment, and output of vibration amplitude is smaller,
Greatly reduce medical equipment significantly shakes the operation risk brought, and chuck mechanism is convenient for disassembly and assembly, quick.
(2) reducing gear clever structure of the invention, the kinetic energy reduction that smoothly can be passed over rotor is again
It is delivered on output shaft, structure is extremely stablized, it is not easy to de- wheel.
(3) the overall stability that output shaft runner assembly and rotor runner assembly of the invention greatly reinforce.
(4) Quick-dismantling mechanism of the invention can quickly, chuck mechanism is easily installed.
Brief description of the drawings
In order that the present invention can be more clearly and readily understood, it is right below according to specific embodiment and with reference to attached drawing
The present invention is described in further detail, wherein
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the structure diagram of the chuck mechanism of the present invention.
Fig. 3 is the structure diagram of the Quick-dismantling mechanism of the present invention.
Fig. 4 is the structure diagram that the reducing gear of the present invention coordinates with output shaft.
In attached drawing marked as：
Casing 1, handle 1-1, internal tooth 1-2, rear end cap 1-3, middle part spacer block 1-4；
Fast encapsulation 2, through hole 2-1, motor stator 3, rotor 4；
Reducing gear 5, sun gear 5-1, first order planet carrier 5-2, first rotating shaft 5-2-1, first order planetary gear 5-3,
Secondary planet frame 5-4, the second shaft 5-4-1, second level planetary gear 5-5；
Output shaft 6；
Chuck mechanism 7, collet connector sleeve 7-1, hemispherical groove 7-1-1, six bearing 7-1-2, collet connecting rod 7-2, folder
Head 7-3；
Quick-dismantling mechanism 8, front nut 8-1, spring 8-2, compression bead set 8-3, steel ball 7-4；
Regulating module 9, motor driving plate 10；
Output shaft runner assembly 11, clutch shaft bearing 11-1, second bearing 11-2,3rd bearing 11-3；
Rotor runner assembly 12, fourth bearing 12-1,5th bearing 12-2.
Embodiment
(embodiment 1)
See that Fig. 1 to Fig. 4, the hospital handheld electric drill of the present embodiment, including casing 1, fast encapsulation 2, motor stator 3, motor turn
Son 4, reducing gear 5, output shaft 6, chuck mechanism 7, Quick-dismantling mechanism 8, regulating module 9 and motor driving plate 10.Fast encapsulation 2
Arranged on the left part of casing 1.Motor stator 3 is arranged on the right part of 1 inner cavity of casing.Rotor 4 is arranged in motor stator 3, and is covered
On machine shaft 5.Rotor 4 is in hollow-core construction, and connects the input terminal of reducing gear 5.Reducing gear 5 is set in
On output shaft 6, and the output terminal connection output shaft 6 of reduction assemblies 5.The left part of output shaft 6 is stretched into the inner cavity of fast encapsulation 2.
The afterbody connection output shaft of chuck mechanism 6, and chuck mechanism 6 is installed on fast encapsulation 2 by Quick-dismantling mechanism 7.Collet
Mechanism 6 connects output shaft 6.Regulating module 9 and motor driving plate 10 are in the handle 1-1 of casing 1.Further include battery case
13.Battery case 13 is installed on the handle 1-1 bottoms of casing 1.Battery case 13 with casing 1 is detachable is fixedly connected.Battery case
12 battery 12-1 powers for motor driving plate 10.Regulating module 9 and motor stator 3 are electrically connected with motor driving plate 10.
Reducing gear 5 includes first order planetary gear reduction assemblies, sun gear 5-1 and second level planetary gear reduction assemblies.The
The input terminal connection rotor 4 of primary planet wheel reduction assemblies, output terminal connection sun gear 5-1.Sun gear 5-1 is set in defeated
On shaft 6.The input terminal connection sun gear 5-1 of second level planetary gear reduction assemblies, output terminal connection output shaft 6.
First planetary gear reduction assemblies include first order planet carrier 5-2 and first order planetary gear 5-3.First order planet carrier 5-
2 are set on sun gear 5-1, and inner ring is connected with sun gear 5-1.Circumferentially it is uniformly provided with first order planet carrier 5-2 more
A first rotating shaft 5-2-1 vertical with first order planet carrier 5-2 side walls.First order planetary gear 5-3 is equipped with multiple, and covers respectively
It is located on each first rotating shaft 5-2-1.Internal tooth 1-2 is distributed along the circumference with the inner peripheral surface of casing 1.5-3 points of first order planetary gear
Do not engaged with internal tooth 1-2 and rotor 4.
In first order planet carrier on the first rotating shaft 5-2-1 of the first order planet carrier 5-2 of first order planetary gear reduction assemblies
Gasket is equipped between 5-2 and first order planetary gear 5-3.First rotating shaft 5-2-1 is equipped with limitation first order planetary gear 5-3 and axially moves
Dynamic baffle ring.
Second level planetary gear reduction assemblies include second level planet carrier 5-4 and second level planetary gear 5-5.Second level planet carrier
5-4 is engaged with the tooth being evenly distributed on 6 side face of output shaft.Circumferentially it is uniformly provided with the planet carrier 5-4 of the second level multiple with the
The second vertical shaft 5-4-1 of secondary planet frame 5-4 side walls.Second level planetary gear 5-5 is equipped with multiple, and is respectively sleeved at every
On a second shaft 5-4-1.Second level planetary gear 5-5 is engaged with the internal tooth 1-2 and sun gear 5-1 of casing 1 respectively.
In second level planet carrier on the second shaft 5-4-1 of the second level planet carrier 5-4 of second level planetary gear reduction assemblies
Gasket is equipped between 5-4 and second level planetary gear 5-5.Second shaft 5-4-1 is equipped with limitation second level planetary gear 5-5 and axially moves
Dynamic baffle ring.
Further include output shaft runner assembly 11 and rotor runner assembly 12.Output shaft runner assembly 11 includes clutch shaft bearing
11-1, second bearing 11-2 and 3rd bearing 11-3.Clutch shaft bearing 11-1 and second bearing 11-2 is arranged on the inner circumferential of fast-assembling set 2
In face, and the inner ring of clutch shaft bearing 11-1 and second bearing 11-2 are set in the left part of output shaft 6.In the right end of casing 1
The rear end cap 1-3 of boring is equipped with chamber.3rd bearing 10-3 is on the inner peripheral surface of rear end cap 1-3, and 3rd bearing
The inner ring of 11-3 is set in the right part of output shaft 6.Rotor runner assembly 12 includes fourth bearing 12-1 and 5th bearing 12-2.Machine
Shell 1 is equipped with the middle part spacer block 1-4 of boring on the inner peripheral surface between motor stator 3 and reducing gear 5.Fourth bearing 12-1
On the inner peripheral surface of middle part spacer block 1-4, and inner ring is set on the left end of rotor 4.After 5th bearing 12-2 is arranged on
On the inner peripheral surface of end cap 1-3, and inner ring is set in the right part of rotor 4.
Quick-dismantling mechanism 8 includes front nut 8-1, spring 8-2, compression bead set 8-3 and steel ball 8-4.The right part of front nut 8-1
It is connected with the outer wall thread of fast encapsulation 2, gap is equipped between left part and fast encapsulation 2.Compression bead is covered on the left of 8-3 and front nut 8-1
Fast 2 outer wall of encapsulation is slidably connected.Spring 7-2 is set on the outer wall between steel ball 8-4 and front nut 8-1.Along axis on fast encapsulation 2
To being evenly equipped with through hole 2-1.Steel ball 8-4 is arranged in through hole 2-1, and compression bead set 8-3 promotes steel ball 8-4 steel ball 8-4 is blocked collet machine
Structure 7.The inner wall of compression bead set 8-3 is equipped with groove.The side face of through hole 2-1, which is equipped with, prevents steel ball 8-4 from falling into fast 2 inner cavity of encapsulation
Limit rib.
Chuck mechanism 7 includes collet connector sleeve 7-1, collet connecting rod 7-2 and collet 7-3.Collet connector sleeve 7-1 is stretched into soon
In the inner cavity of encapsulation 2, the outer wall of collet connector sleeve 7-1 is equipped with the hemispherical groove 7-1-1 coordinated with steel ball 8-4.Collet connects
6th bearing 7-1-2 is equipped with female connector 7-1 inner cavities.Collet connecting rod 7-2 and the inner ring of 6th bearing 7-1-2 are fixed, both ends point
Other connecting clip 7-3 and output shaft 6.The left side of output shaft 6 is equipped with the mounting hole of connecting clip connecting rod 7-2.
In use, promoting compression bead set 8-3 to align to groove with the through hole 2-1 of fast encapsulation 2, collet connector sleeve 7-1 is stretched into
Align in the inner cavity of fast encapsulation 2 to hemispherical groove 7-1-1 with through hole 2-1, unclamp compression bead set 8-3, spring 7-2 driving compression bead set
8-3 resets, and compression bead set 8-3 promotes steel ball 8-4 to stretch into hemispherical groove 7-1-1.The battery 12-1 of battery case 12 passes through motor
Driving plate 10 is powered with motor stator 3, and based on the principle of electrical conductor stress in magnetic field, rotor 4 rotates, rotor
The 4 multiple first order planetary gear 5-3 of driving carry out circular motion, first order planetary gear 5-3 bands along the axle center of first order planet carrier 5-2
Dynamic first order planet carrier 5-2 is rotated, and first order planet carrier 5-2 drives sun gear 5-1 to rotate, and sun gear 5-1 drives multiple second
Level planetary gear 5-5 carries out circular motion along the axle center of second level planet carrier 5-4, and first order planetary gear 5-3 drives second level planet
Frame 5-4 is rotated, and second level planet carrier 5-4 drives output shaft 6 to rotate, output shaft 6 driving dog connecting rod 7-2 and collet 7-3
Rotate.
Particular embodiments described above, has carried out the purpose of the present invention, technical solution and beneficial effect further in detail
Describe in detail it is bright, it should be understood that the foregoing is merely the present invention specific embodiment, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done, should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
- A kind of 1. hospital handheld electric drill, it is characterised in that：Including casing (1), fast encapsulation (2), motor stator (3), rotor (4), reducing gear (5), output shaft (6), chuck mechanism (7), Quick-dismantling mechanism (8), regulating module (9) and motor driving plate (10)；The fast encapsulation (2) is arranged on the left part of casing (1)；The motor stator (3) is arranged on the right part of casing (1) inner cavity；It is described Rotor (4) is arranged in motor stator (3), and is sheathed on machine shaft (5)；The rotor (4) is in hollow knot Structure, and connect the input terminal of reducing gear (5)；The reducing gear (5) is set on output shaft (6), and reduction assemblies (5) output terminal connection output shaft (6)；The left part of the output shaft (6) is stretched into the inner cavity of fast encapsulation (2)；The collet machine The afterbody connection output shaft of structure (7), and chuck mechanism (7) is installed on fast encapsulation (2) by Quick-dismantling mechanism (8)；Institute State chuck mechanism (7) connection output shaft (6)；The regulating module (9) and motor driving plate (10) are arranged on the handle of casing (1) In (1-1).
- A kind of 2. hospital handheld electric drill according to claim 1, it is characterised in that：The reducing gear (5) includes first Level planetary gear reduction assemblies, sun gear (5-1) and second level planetary gear reduction assemblies；The first order planetary gear reduction assemblies Input terminal connection rotor (4), output terminal connection sun gear (5-1)；The sun gear (5-1) is set on output shaft (6)； The input terminal connection sun gear (5-1) of the second planetary gear reduction assemblies, output terminal connection output shaft (6).
- A kind of 3. hospital handheld electric drill according to claim 2, it is characterised in that：The first planetary gear reduction assemblies bag Include first order planet carrier (5-2) and first order planetary gear (5-3)；The first order planet carrier (5-2) is set in sun gear (5-1) On, and inner ring is connected with sun gear (5-1)；Circumferentially it is uniformly provided with the first order planet carrier (5-2) multiple with first The vertical first rotating shaft (5-2-1) in level planet carrier (5-2) end face；The first order planetary gear (5-3) be equipped with it is multiple, and respectively It is set in each first rotating shaft (5-2-1)；Internal tooth (1-2) is distributed along the circumference with the inner peripheral surface of the casing (1)；Described Primary planet wheel (5-3) is engaged with internal tooth (1-2) and rotor (4) respectively.
- A kind of 4. hospital handheld electric drill according to claim 3, it is characterised in that：The first order planetary gear reduction assemblies First order planet carrier (5-2) first rotating shaft (5-2-1) in first order planet carrier (5-2) and first order planetary gear (5-3) Between be equipped with gasket；The first rotating shaft (5-2-1) is equipped with the baffle ring of limitation first order planetary gear (5-3) axial movement.
- A kind of 5. hospital handheld electric drill according to claim 4, it is characterised in that：The second level planetary gear reduction assemblies Including second level planet carrier (5-4) and second level planetary gear (5-5)；The second level planet carrier (5-4) and output shaft (6) side face On be evenly distributed tooth engagement；Multiple and second level planet carrier is circumferentially uniformly provided with the second level planet carrier (5-4) Vertical the second shaft (5-4-1) in (5-4) end face；The second level planetary gear (5-5) is equipped with multiple, and is respectively sleeved at every On a second shaft (5-4-1)；The second level planetary gear (5-5) internal tooth (1-2) and sun gear (5- with casing (1) respectively 1) engage.
- A kind of 6. hospital handheld electric drill according to claim 5, it is characterised in that：The second level planetary gear reduction assemblies Second level planet carrier (5-4) the second shaft (5-4-1) in second level planet carrier (5-4) and second level planetary gear (5-5) Between be equipped with gasket；Second shaft (5-4-1) is equipped with the baffle ring of limitation second level planetary gear (5-5) axial movement.
- A kind of 7. hospital handheld electric drill according to claim 1, it is characterised in that：Further include output shaft runner assembly (11) With rotor runner assembly (12)；The output shaft runner assembly (11) include clutch shaft bearing (11-1), second bearing (11-2) and 3rd bearing (11-3)；The clutch shaft bearing (11-1) and second bearing (11-2) are arranged in the inner peripheral surface of fast-assembling set (2), and And clutch shaft bearing (11-1) and the inner ring of second bearing (11-2) are set in the left part of output shaft (6)；The right side of the casing (1) Hold the rear end cap (1-3) that boring is equipped with inner cavity；The 3rd bearing (10-3) is arranged on the inner peripheral surface of rear end cap (1-3) On, and the inner ring of 3rd bearing (11-3) is set in the right part of output shaft (6)；The rotor runner assembly (12) includes the 4th Bearing (12-1) and 5th bearing (12-2)；Inner peripheral surface of the casing (1) between motor stator (3) and reducing gear (5) It is equipped with the middle part spacer block (1-4) of boring；The fourth bearing (12-1) is arranged on the inner peripheral surface of middle part spacer block (1-4), And inner ring is set on the left end of rotor (4)；The 5th bearing (12-2) is arranged on the inner peripheral surface of rear end cap (1-3) On, and inner ring is set in the right part of rotor (4).
- A kind of 8. hospital handheld electric drill according to claim 1, it is characterised in that：The Quick-dismantling mechanism (8) includes Front nut (8-1), spring (8-2), compression bead set (8-3) and steel ball (8-4)；The right part of the front nut (8-1) and fast encapsulation (2) Outer wall thread connection, gap is equipped between left part and fast encapsulation (2)；On the left of the compression bead set (8-3) and front nut (8-1) Fast encapsulation (2) outer wall is slidably connected；The spring (7-2) is set on the outer wall between fast encapsulation (2) and front nut (8-1)； Through hole (2-1) is evenly equipped with vertically on the fast encapsulation (2)；The steel ball (8-4) is arranged in through hole (2-1), compression bead set (8-3) Steel ball (8-4) is promoted steel ball (8-4) is blocked chuck mechanism (7).
- A kind of 9. hospital handheld electric drill according to claim 1, it is characterised in that：The chuck mechanism (7) includes collet Connector sleeve (7-1), collet connecting rod (7-2) and collet (7-3)；The collet connector sleeve (7-1) stretches into the inner cavity of fast encapsulation (2) In, the outer wall of collet connector sleeve (7-1) is equipped with the hemispherical groove (7-1-1) coordinated with steel ball (7-4)；The collet connection Set is equipped with 6th bearing (7-1-2) in (7-1) inner cavity；The collet connecting rod (7-2) and the inner ring of 6th bearing (7-1-2) are consolidated It is fixed, both ends difference connecting clip (7-3) and output shaft (6).
- A kind of 10. hospital handheld electric drill according to claim 1, it is characterised in that：Further include battery case (13)；The electricity Pond box (13) is installed on handle (1-1) bottom of casing (1)；The battery (12-1) of the battery case (12) is motor driving plate (10) power；The regulating module (9) and motor stator (3) are electrically connected with motor driving plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711429898.4A CN107947455B (en) | 2017-12-25 | 2017-12-25 | Medical hand-held electric drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711429898.4A CN107947455B (en) | 2017-12-25 | 2017-12-25 | Medical hand-held electric drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107947455A true CN107947455A (en) | 2018-04-20 |
| CN107947455B CN107947455B (en) | 2023-12-15 |
Family
ID=61940261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711429898.4A Active CN107947455B (en) | 2017-12-25 | 2017-12-25 | Medical hand-held electric drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107947455B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110742673A (en) * | 2018-07-24 | 2020-02-04 | 上海库欣医疗科技有限公司 | Electric bone drill |
| CN112315538A (en) * | 2020-10-05 | 2021-02-05 | 德清创赢机械科技有限公司 | Small medical bone saw |
| CN112701849A (en) * | 2020-12-21 | 2021-04-23 | 宁波智启机电有限公司 | Multistage split type tubular motor reducer |
| CN115363687A (en) * | 2022-09-05 | 2022-11-22 | 诺鑫（南通）医疗技术有限公司 | Bone drill device with depth measuring function |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110742673A (en) * | 2018-07-24 | 2020-02-04 | 上海库欣医疗科技有限公司 | Electric bone drill |
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| CN112315538A (en) * | 2020-10-05 | 2021-02-05 | 德清创赢机械科技有限公司 | Small medical bone saw |
| CN112701849A (en) * | 2020-12-21 | 2021-04-23 | 宁波智启机电有限公司 | Multistage split type tubular motor reducer |
| CN115363687A (en) * | 2022-09-05 | 2022-11-22 | 诺鑫（南通）医疗技术有限公司 | Bone drill device with depth measuring function |
| CN115363687B (en) * | 2022-09-05 | 2024-01-09 | 诺鑫（南通）医疗技术有限公司 | Bone drill device with depth measurement function |
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| CN107947455B (en) | 2023-12-15 |
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