CN103009325A - Electric screwdriver - Google Patents
Electric screwdriver Download PDFInfo
- Publication number
- CN103009325A CN103009325A CN2012104945896A CN201210494589A CN103009325A CN 103009325 A CN103009325 A CN 103009325A CN 2012104945896 A CN2012104945896 A CN 2012104945896A CN 201210494589 A CN201210494589 A CN 201210494589A CN 103009325 A CN103009325 A CN 103009325A
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- China
- Prior art keywords
- output shaft
- gear mechanism
- connector
- housing
- motor
- 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.)
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a charging type screwdriver, which comprises a shell with a handle, wherein the handle is provided with a switch control device; a motor is arranged on the shell, and the shaft of the motor is used as a gear wheel mechanism of an input shaft; an output shaft of the gear wheel mechanism is connected with a connector; a screwdriver clamp is arranged on the part of the connector protruding out the shell; and a charging device comprising a battery pack and a circuit board is also arranged in the shell. Through the technical scheme of the invention, the screwdriver can be applied to the place without the power supply or where the power supply cannot be touched, and the fastening operation of a screw or stop of the losing operation of the screw can be automatically realized.
Description
Technical field
The invention belongs to field of power tools, refer to especially a kind of electric screw driver.
Background technology
At present, there is following problem in existing electric screwdriver, make the electricity consumption screwdriver when holding screw, if the operator can not in time mention screwdriver, then excessive to the fastening force of screw, and can produce infringement or when the Chinese juniper screw to screw, in the situation with loosened screw, if the operator does not in time mention screwdriver, screwdriver also rotating, causes waste.
In order to improve the defective of electric screwdriver, prior art proposes, and adopts many grades of speed changes to realize the different demands of screw.But this technical scheme also only is the power stage that has changed screwdriver, does not really solve the above problems.
Summary of the invention
The purpose of this invention is to provide a kind of electric screw driver, by the technical program, stopping in the time of can automatically realizing the operation of fastening operation or Unscrewed screw.
The present invention is achieved by the following technical solutions:
A kind of electric screw driver, include the housing with handle, be provided with switch controlling device on the described handle, housing is provided with motor, that be connected with motor and pass the wire of housing, and with the gear mechanism of motor reel as power shaft, the output shaft of gear mechanism is connected with connector, the part of the outstanding housing of connector is provided with the chasing tool chuck, described at gear mechanism output shaft and connector between be provided with gear teeth, described gear teeth group is that packaged type is connected with the output shaft of gear mechanism, is overlapped with pressure sensor in gear teeth; The two ends of difference setting pressure spring in the centre bore of the output shaft end face of gear teeth group and gear mechanism.
Be provided with winder in the described housing, wire links to each other with motor by winder one end, and the other end is used for linking to each other with power supply.
The beneficial effect that the present invention compares with prior art is:
Pass through the technical program, when carrying out the operation of fastening operation or Unscrewed screw, value by the setting pressure sensor, when reaching or reducing to certain force value, thereby connector is disengaged to the output shaft of motor direction pulling with gear mechanism under the effect of power by the compression spring that is connected with the gear teeth group, and stop motion.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below describe technical scheme of the present invention in detail by specific embodiment, should be understood that following embodiment only can be used for explaining the present invention and can not be interpreted as to be limitation of the present invention.
As shown in Figure 1, a kind of rechargeable screw driver, include the housing 11 with handle 15, be provided with switch controlling device 20 on the described handle 15, the position that handle 15 is arranged at housing 11 does not have special requirement, be provided with motor 12 in the housing 11, motor 12 is connected with battery pack 14 and control device 20, thinks that motor provides the start and stop of power supply and control motor; And with the gear mechanism 16 of motor reel as power shaft, the part of connector 22 outstanding housings 11 is provided with chasing tool chuck 18, this is prior art, also be provided with the charging device that is formed by battery pack 14 and circuit board 13 in the housing 11, also be provided with the wire that directly is connected with motor on the circuit board 13, to guarantee that screwdriver uses in the cable power situation, described at gear mechanism output shaft 17 and connector 22 between be provided with gear teeth group 23, the output shaft 17 of described gear teeth group 23 and gear mechanism is overlapped with pressure sensor for packaged type is connected in gear teeth; The gear teeth group can surpass under the pressure condition of setting, it is axial force that the radial load that the gear teeth group is obtained partly changes direction, the two ends of compression spring 21 are installed on respectively in the centre bore of output shaft end face of gear teeth group and gear mechanism, thereby compressive pressure spring pulling connector moves to motor direction, thereby the gear teeth group is broken away from the output shaft of gear mechanism and quits work.
Claims (1)
1. rechargeable screw driver, include the housing with handle, be provided with switch controlling device on the described handle, housing is provided with motor, and with the gear mechanism of motor reel as power shaft, the output shaft of gear mechanism is connected with connector, the part of the outstanding housing of connector is provided with the chasing tool chuck, also be provided with the charging device that is formed by battery pack and circuit board in the housing, it is characterized in that: described at gear mechanism output shaft and connector between be provided with gear teeth, described gear teeth group is that packaged type is connected with the output shaft of gear mechanism, is overlapped with pressure sensor in gear teeth; The two ends of difference setting pressure spring in the centre bore of the output shaft end face of gear teeth group and gear mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104945896A CN103009325A (en) | 2012-11-22 | 2012-11-22 | Electric screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104945896A CN103009325A (en) | 2012-11-22 | 2012-11-22 | Electric screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103009325A true CN103009325A (en) | 2013-04-03 |
Family
ID=47958720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104945896A Pending CN103009325A (en) | 2012-11-22 | 2012-11-22 | Electric screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103009325A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997226A (en) * | 2016-05-08 | 2016-10-12 | 哈尔滨诺斯泰科技有限责任公司 | An automatic screw screwing device for surgery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4842078A (en) * | 1986-06-06 | 1989-06-27 | Atlas Copco Aktiebolag | Screw joint tightening power tool |
| CN200991874Y (en) * | 2006-12-30 | 2007-12-19 | 王登国 | Fully automatic screw driver |
| CN201482992U (en) * | 2009-03-02 | 2010-05-26 | 宋树建 | Full-automatic electric screw driver |
| CN102159363A (en) * | 2008-08-08 | 2011-08-17 | 本田技研工业株式会社 | Screw tightening device and torque sensor |
-
2012
- 2012-11-22 CN CN2012104945896A patent/CN103009325A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4842078A (en) * | 1986-06-06 | 1989-06-27 | Atlas Copco Aktiebolag | Screw joint tightening power tool |
| CN200991874Y (en) * | 2006-12-30 | 2007-12-19 | 王登国 | Fully automatic screw driver |
| CN102159363A (en) * | 2008-08-08 | 2011-08-17 | 本田技研工业株式会社 | Screw tightening device and torque sensor |
| CN201482992U (en) * | 2009-03-02 | 2010-05-26 | 宋树建 | Full-automatic electric screw driver |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997226A (en) * | 2016-05-08 | 2016-10-12 | 哈尔滨诺斯泰科技有限责任公司 | An automatic screw screwing device for surgery |
| CN105997226B (en) * | 2016-05-08 | 2019-05-21 | 苏州诺来宁医疗科技有限公司 | A kind of surgery stubborn spike devices automatically |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |