CN201744959U - Electric screw driver with planetary gear set speed reduction drive device - Google Patents
Electric screw driver with planetary gear set speed reduction drive device Download PDFInfo
- Publication number
- CN201744959U CN201744959U CN201020232004XU CN201020232004U CN201744959U CN 201744959 U CN201744959 U CN 201744959U CN 201020232004X U CN201020232004X U CN 201020232004XU CN 201020232004 U CN201020232004 U CN 201020232004U CN 201744959 U CN201744959 U CN 201744959U
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- China
- Prior art keywords
- planetary gear
- planetary
- gear
- planetary gearsets
- speed reduction
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Abstract
The utility model relates to an electric screw driver with planetary gear set speed reduction drive device. The planetary gear set is divided into two groups, wherein a driving gear is mounted in the center of a first-stage planetary gear set, the driving gear is engaged with each planetary gear in the first-stage planetary gear set, the individual planetary gears in the first-stage planetary gear set are respectively sleeved on the corresponding planetary gear shafts on one side of a planetary gear holder, a connecting gear that is positioned in the center of the other side of the planetary gear holder is inserted in the center of a second-stage planetary gear set, the connecting gear is engaged with each planetary gear in the second-stage planetary gear set, the individual planetary gears in the second-stage planetary gear set are respectively engaged with the internal teeth of a radially-fixed inner gear ring, and the individual planetary gears in the last-stage planetary gear set are respectively sleeved on the corresponding planetary gear shafts at the driving shaft connecting end in a cutter head rotating component in the form of one-to-one correspondence. Accordingly, the electric screw driver has the characteristics of compact and small structure, is convenient to assembly and has good torque conversion effect.
Description
Technical field
The utility model relates to the electric tool technical field, refers in particular to a kind of electric screw driver with planetary gearsets speed reduction gearing.
Background technology
Existing electric screw driver is made up of motor and anterior cutter head runner assembly usually, since motor output be the rotating speed height, power that moment of torsion is little, be not suitable for the power that rotating speed is low, moment of torsion is big that the electric screw cutter head needs, therefore, usually will add the little power of rotating speed height, moment of torsion that gear train exports motor between the motor of electric screw driver and cutter head runner assembly converts the power that rotating speed is low, moment of torsion is big to and offers cutter head.Existing gear train transmission device is complex structure often, and in view of this moment of torsion conversion weak effect, is necessary to provide a kind of novel structure compactness, and the gear train that is fit to the conversion of various moments of torsion and rotating speed carries out transmission.
The utility model content
The purpose of this utility model is exactly at the deficiencies in the prior art part and provide provides a kind of novel structure compactness small and exquisite, and the electric screw driver of planetary gearsets speed reduction gearing is changed, had to suitable various moments of torsion and rotating speed.
For achieving the above object, this novel technical scheme is: a kind of electric screw driver with planetary gearsets speed reduction gearing, include: the motor and the cutter head runner assembly that is positioned at the electric screw driver front portion that are positioned at the electric screw driver rear portion, be connected with one or more planetary gearsets speed reduction gearings that are connected arranged side by side between described motor and the described cutter head runner assembly
This planetary gearsets speed reduction gearing includes: fixedly sleeved driving gear on motor output shaft, three or four identical planetary gears of size are meshing with each other and form the planetary gearsets of annular, Planetary gear seat, ring gear and driving shaft, described planetary gearsets is two groups, wherein, driving gear be assemblied in first order planetary gear group switching centre and driving gear respectively with first order planetary gearsets in each planetary gear engagement, each planetary gear in the first order planetary gearsets is corresponding respectively to be set on the planet pin of Planetary gear seat one side, the connection gear that is fixed on Planetary gear seat opposite side center be plugged in second level planetary gear group switching centre and this connection gear respectively with second level planetary gearsets in each planetary gear engagement, each planetary gear in the planetary gearsets respectively with radially fixing ring gear internal tooth engagement;
On the corresponding planet pin on the corresponding one by one respectively driving shaft link that is set in the cutter head runner assembly of each planetary gear in last group planetary gearsets.
Described planetary gearsets speed reduction gearing is one group.
Described planetary gearsets is meshing with each other by three identical planetary gears of size and forms loop configuration.
Described planetary gearsets speed reduction gearing also includes central shaft, and central shaft is installed in and makes both central axes location between Planetary gear seat centre bore and the driving shaft link centre bore.
Between described Planetary gear seat and driving shaft link, also be folded with and make each gear and driving shaft link reduce the hub axle washer of rotation friction at interval.
After adopting said structure, this novel little power of rotating speed height, moment of torsion of utilizing planetary gearsets that motor is exported converts the power that rotating speed is low, moment of torsion is little to and offers cutter head, and, can be according to rotating speed and the rotating speed of moment of torsion and cutter head needs and the ratio of moment of torsion of real electrical machinery, by one or more groups planetary gearsets moment of torsion is become big, realize the purpose of soft readjustment, therefore, this novel drive mechanism has is convenient to design in cylindrical outer casing, compact conformation is small and exquisite, easy to assembly, moment of torsion conversion good effectiveness.
Description of drawings
Fig. 1 is the utility model planetary gearsets speed reduction gearing generalized section.
Fig. 2 is the utility model planetary gearsets speed reduction gearing perspective view.
The specific embodiment
Shown in Fig. 1-2, the utility model includes motor 10 that is positioned at the electric screw driver rear portion and the cutter head runner assembly 20 that is positioned at the electric screw driver front portion, be connected with one or more planetary gearsets speed reduction gearings 30 that are connected arranged side by side between described motor 10 and the described cutter head runner assembly 20
This planetary gearsets speed reduction gearing 30 includes: fixedly sleeved driving gear 31 on motor output shaft, three or four identical planetary gears of size are meshing with each other and form the planetary gearsets 32 of annular, 33, Planetary gear seat 34, ring gear 35 and driving shaft 36, described planetary gearsets is two groups, wherein, driving gear 31 be assemblied in first order planetary gearsets 32 centers and driving gear 31 respectively with first order planetary gearsets 32 in each planetary gear engagement, each planetary gear in the first order planetary gearsets 32 is corresponding respectively to be set on the planet pin 341 of Planetary gear seat 34 1 sides, the connection gear 342 that is fixed on Planetary gear seat 34 opposite side centers be plugged in second level planetary gearsets 33 centers and this connection gear 342 respectively with second level planetary gearsets 33 in each planetary gear engagement, planetary gearsets 32, each planetary gear in 33 meshes with ring gear 35 internal tooths of radially fixing respectively;
On the corresponding planet pin 361 on corresponding one by one respectively driving shaft 36 links that are set in the cutter head runner assembly of each planetary gear in the second level planetary gearsets 33.
Described planetary gearsets speed reduction gearing 30 is one group.
Described planetary gearsets 32,33 is meshing with each other by three identical planetary gears of size and forms loop configuration.
Described planetary gearsets speed reduction gearing 30 also includes central shaft 37, and central shaft 37 is installed in and makes both central axes location between Planetary gear seat 34 centre bores and the driving shaft 36 link centre bores.
Between described Planetary gear seat 34 and driving shaft 36 links, also be folded with and make each gear and driving shaft 36 links reduce the hub axle washer 38 of rotation friction at interval.
During use, motor 10 drives driving gear 31 and rotates, driving gear 31 makes with the first order planetary gearsets 32 of its engagement and rotates towards a direction, three planetary gears in the first order planetary gearsets 32 are around fixed ring gear 35 rotations, like this, also rotation thereupon of Planetary gear seat 34 with 32 sockets of first order planetary gearsets, three planetary gears that connection gear 342 on the Planetary gear seat 34 just drives in the second level planetary gearsets 33 rotate towards a direction, three planetary gears in the second level planetary gearsets 33 are also around fixed ring gear 35 rotations, thereby drive driving shaft 36 rotations on three planetary gears that are socketed in the second level planetary gearsets 33, so, the power of the low moment of torsion of high rotating speed of motor 10 outputs has been converted into the slow-revving power of high moment of torsion of suitable cutter head rotary work.And adopt central shaft 37 can make Planetary gear seat 34 and driving shaft 36 be on the axis, and make assembling more accurate, and the effect of hub axle washer 38 is to isolate each gear and driving shaft 36 links, be convenient to each gear and rotate smoothly.
Like this, can be according to rotating speed and the rotating speed of moment of torsion and cutter head needs and the ratio of moment of torsion of real electrical machinery 10, by one or more groups planetary gearsets moment of torsion is become big, realize the purpose of soft readjustment, therefore, this novel drive mechanism has is convenient to design in cylindrical outer casing, and compact conformation is small and exquisite, easy to assembly, moment of torsion conversion good effectiveness.
Claims (5)
1. electric screw driver with planetary gearsets speed reduction gearing, include: the motor and the cutter head runner assembly that is positioned at the electric screw driver front portion that are positioned at the electric screw driver rear portion, it is characterized in that: be connected with one or more planetary gearsets speed reduction gearings that are connected arranged side by side between described motor and the described cutter head runner assembly
This planetary gearsets speed reduction gearing includes: fixedly sleeved driving gear on motor output shaft, three or four identical planetary gears of size are meshing with each other and form the planetary gearsets of annular, Planetary gear seat, ring gear and driving shaft, described planetary gearsets is two groups, wherein, driving gear be assemblied in first order planetary gear group switching centre and driving gear respectively with first order planetary gearsets in each planetary gear engagement, each planetary gear in the first order planetary gearsets is corresponding respectively to be set on the planet pin of Planetary gear seat one side, the connection gear that is fixed on Planetary gear seat opposite side center be plugged in second level planetary gear group switching centre and this connection gear respectively with second level planetary gearsets in each planetary gear engagement, each planetary gear in the planetary gearsets respectively with radially fixing ring gear internal tooth engagement;
On the corresponding planet pin on the corresponding one by one respectively driving shaft link that is set in the cutter head runner assembly of each planetary gear in last group planetary gearsets.
2. a kind of electric screw driver with planetary gearsets speed reduction gearing according to claim 1 is characterized in that: described planetary gearsets speed reduction gearing is one.
3. a kind of electric screw driver with planetary gearsets speed reduction gearing according to claim 1 is characterized in that: described planetary gearsets is meshing with each other by three identical planetary gears of size and forms loop configuration.
4. according to claim 1 or 2 or 3 described a kind of electric screw drivers with planetary gearsets speed reduction gearing, it is characterized in that: described planetary gearsets speed reduction gearing also includes central shaft, and central shaft is installed in and makes both central axes location between Planetary gear seat centre bore and the driving shaft link centre bore.
5. a kind of electric screw driver with planetary gearsets speed reduction gearing according to claim 4 is characterized in that: also be folded with between described Planetary gear seat and driving shaft link and make each gear and driving shaft link reduce the hub axle washer of rotation friction at interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020232004XU CN201744959U (en) | 2010-06-22 | 2010-06-22 | Electric screw driver with planetary gear set speed reduction drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020232004XU CN201744959U (en) | 2010-06-22 | 2010-06-22 | Electric screw driver with planetary gear set speed reduction drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201744959U true CN201744959U (en) | 2011-02-16 |
Family
ID=43579631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020232004XU Expired - Fee Related CN201744959U (en) | 2010-06-22 | 2010-06-22 | Electric screw driver with planetary gear set speed reduction drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201744959U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600327A (en) * | 2013-09-18 | 2014-02-26 | 西北工业大学 | Electric screw driver with adjustable rotating speed |
| CN103648724A (en) * | 2011-06-30 | 2014-03-19 | 罗伯特·博世有限公司 | Drywall screwdriver |
| CN107061638A (en) * | 2017-05-18 | 2017-08-18 | 北京宏强富瑞技术有限公司 | Gear drive inside hand tool |
| CN112443284A (en) * | 2020-11-13 | 2021-03-05 | 上官德安 | Electric regulator for hair braid plumb bob for oil well |
-
2010
- 2010-06-22 CN CN201020232004XU patent/CN201744959U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103648724A (en) * | 2011-06-30 | 2014-03-19 | 罗伯特·博世有限公司 | Drywall screwdriver |
| CN103648724B (en) * | 2011-06-30 | 2015-12-09 | 罗伯特·博世有限公司 | Drywall screwdriver |
| US9427850B2 (en) | 2011-06-30 | 2016-08-30 | Robert Bosch Gmbh | Drywall screwdriver |
| CN103600327A (en) * | 2013-09-18 | 2014-02-26 | 西北工业大学 | Electric screw driver with adjustable rotating speed |
| CN107061638A (en) * | 2017-05-18 | 2017-08-18 | 北京宏强富瑞技术有限公司 | Gear drive inside hand tool |
| CN112443284A (en) * | 2020-11-13 | 2021-03-05 | 上官德安 | Electric regulator for hair braid plumb bob for oil well |
| CN112443284B (en) * | 2020-11-13 | 2022-07-08 | 上官德安 | Electric regulator for hair braid plumb bob for oil well |
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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: 20110216 Termination date: 20160622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |