CN204312645U - A kind of transmission device of electric wrench - Google Patents
A kind of transmission device of electric wrench Download PDFInfo
- Publication number
- CN204312645U CN204312645U CN201420636571.XU CN201420636571U CN204312645U CN 204312645 U CN204312645 U CN 204312645U CN 201420636571 U CN201420636571 U CN 201420636571U CN 204312645 U CN204312645 U CN 204312645U
- Authority
- CN
- China
- Prior art keywords
- output shaft
- steel ball
- bearing
- input shaft
- shaft
- 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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The transmission device that the utility model discloses a kind of electric wrench comprises input shaft, Returnning spring, friction clutch, centrifugal steel ball, steel ball positioning disk, bearing of input shaft, output shaft clutch shaft bearing, hollow flywheel, output shaft, output shaft second bearing, ratchet, bearing pin, pawl restoring spring, reset steel ball.Input shaft high-speed motion, drive friction clutch, steel ball positioning disk rotate together with centrifugal steel ball, centrifugal steel ball produces centrifugal force pulls friction clutch and axially moves, compress hollow flywheel, and produce frictional force between hollow flywheel, hollow flywheel is driven to run up together, the afterbody of ratchet on hollow flywheel is made to produce centrifugal force, ratchet swings around bearing pin, and now ratchet engages with output shaft, drives output shaft to rotate together, now, input shaft is static, friction clutch under the effect of Returnning spring, with hollow divided flywheel from.Hollow flywheel continues to drive output shaft rotation, fastening nut or bolt under the effect of rotary inertia.
Description
Technical field
The present invention relates to a kind of electric wrench, particularly a kind of transmission device of electric wrench.
Background technique
Along with the mechanization of social production and automaticity constantly improve, electric wrench applies to, in the middle of the machinery equipment manufacture processing of all conglomeraties such as metallurgy, building and the process of Measuring error, be used for tightening reinforcing to all kinds of bolt widely.But the more electric wrench of current application mostly all can not control torque preferably, and easily impact infringement to equipment, cannot ensure that the connection of key position is safe and reliable, using effect is bad.Adopt the electric wrench of DC motor Driver, be realize tightening and unclamping nut by obtaining larger moment of torsion at output terminal, the reactive torque of such continuous action is comparatively large, such that spanner volume is large, quality large, inconvenient operation.In order to the safe operation of machinery of increasing work efficiency, ensure, locked rotor current when one can overcome work must be designed excessive, ensure the balanced electric wrench of output torque.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of transmission device of electric wrench is provided.
A kind of transmission device of electric wrench comprises input shaft, Returnning spring, friction clutch, centrifugal steel ball, steel ball positioning disk, bearing of input shaft, output shaft clutch shaft bearing, hollow flywheel, output shaft, output shaft second bearing, ratchet, bearing pin, pawl restoring spring, reset steel ball; Input shaft and friction clutch are connected, friction clutch and hollow flywheel are connected, Returnning spring is embedded in the groove of input shaft, input shaft groove port is equipped with centrifugal steel ball, centrifugal steel ball side is provided with steel ball positioning disk, the tail end of input shaft is provided with bearing of input shaft, output shaft one end is connected with output shaft clutch shaft bearing, the other end of output shaft is connected with output shaft second bearing, output shaft is connected with hollow flywheel, ratchet is connected with hollow flywheel by bearing pin, and ratchet engages with output shaft, and pawl restoring spring and reset steel ball are positioned at the afterbody of hollow flywheel.
Use the utility model, structure is simple, adopts hollow flywheel energy storage, is done work by inertia, and motor needs the just friction torque overcome, and power of motor can be very little, thus can make that whole spanner volume is little, quality light, be easy to carry, convenient operation.And this device when effectively overcoming electric wrench work locked rotor current excessive, easily damage the defect of motor, enhance the harmony of electric wrench output torque, effectively extend the working life of electric wrench, ensure that the reliability of its work.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model electric driven spanners transmission mechanism;
In Fig. 1, input shaft 1, Returnning spring 2, friction clutch 3, centrifugal steel ball 4, steel ball positioning disk 5, bearing of input shaft 6, output shaft clutch shaft bearing 7, hollow flywheel 8, output shaft 9, output shaft second bearing 10, ratchet 11, bearing pin 12, pawl restoring spring 13, reset steel ball 14.
Embodiment
Below in conjunction with the detailed mode of execution of the present utility model of accompanying drawing:
As shown in Figure 1, a kind of transmission device of electric wrench comprises input shaft 1, Returnning spring 2, friction clutch 3, centrifugal steel ball 4, steel ball positioning disk 5, bearing of input shaft 6, output shaft clutch shaft bearing 7, hollow flywheel 8, output shaft 9, output shaft second bearing 10, ratchet 11, bearing pin 12, pawl restoring spring 13, reset steel ball 14, input shaft 1 and friction clutch 3 are connected, friction clutch 3 and hollow flywheel 8 are connected, Returnning spring 2 is embedded in the groove of input shaft 1, input shaft 1 groove port is equipped with centrifugal steel ball 4, centrifugal steel ball 4 side is provided with steel ball positioning disk 5, the tail end of input shaft 1 is provided with bearing of input shaft 6, output shaft 9 one end is connected with output shaft clutch shaft bearing 7, the other end of output shaft 9 is connected with output shaft second bearing 10, output shaft 9 is connected with hollow flywheel 8, ratchet 11 is connected with hollow flywheel 8 by bearing pin 12, ratchet 11 engages with output shaft 9, pawl restoring spring 13 and reset steel ball 14 are positioned at the afterbody of hollow flywheel 8.
Input shaft 1 high-speed motion, drive friction clutch 3, steel ball positioning disk 5 rotates together with centrifugal steel ball 4, centrifugal steel ball 4 produces centrifugal force pulls friction clutch 3 and axially moves, compress hollow flywheel 8, and produce frictional force between hollow flywheel 8, hollow flywheel 8 is driven to run up together, the afterbody of ratchet 11 on hollow flywheel 8 is made to produce centrifugal force, ratchet 11 swings around bearing pin 12, now ratchet 11 engages with output shaft 9, output shaft 9 is driven to rotate together, now, input shaft 1 is static, friction clutch 3 is under the effect of Returnning spring 2, be separated with hollow flywheel 8, hollow flywheel 8 continues to drive output under the effect of rotary inertia, 9 rotate, fastening nut or bolt.
Claims (1)
1. a transmission device for electric wrench, is characterized in that comprising input shaft (1), Returnning spring (2), friction clutch (3), centrifugal steel ball (4), steel ball positioning disk (5), bearing of input shaft (6), output shaft clutch shaft bearing (7), hollow flywheel (8), output shaft (9), output shaft second bearing (10), ratchet (11), bearing pin (12), pawl restoring spring (13), reset steel ball (14), input shaft (1) and friction clutch (3) are connected, friction clutch (3) and hollow flywheel (8) are connected, Returnning spring (2) is embedded in the groove of input shaft (1), input shaft (1) groove port is equipped with centrifugal steel ball (4), centrifugal steel ball (4) side is provided with steel ball positioning disk (5), the tail end of input shaft (1) is provided with bearing of input shaft (6), output shaft (9) one end is connected with output shaft clutch shaft bearing (7), output shaft (9) the other end is connected with output shaft second bearing (10), output shaft (9) is connected with hollow flywheel (8), ratchet (11) is connected with hollow flywheel (8) by bearing pin (12), ratchet (11) engages with output shaft (9), pawl restoring spring (13) and reset steel ball (14) are positioned at the afterbody of hollow flywheel (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636571.XU CN204312645U (en) | 2014-10-30 | 2014-10-30 | A kind of transmission device of electric wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636571.XU CN204312645U (en) | 2014-10-30 | 2014-10-30 | A kind of transmission device of electric wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312645U true CN204312645U (en) | 2015-05-06 |
Family
ID=53134963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420636571.XU Expired - Fee Related CN204312645U (en) | 2014-10-30 | 2014-10-30 | A kind of transmission device of electric wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312645U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110023035A (en) * | 2016-02-24 | 2019-07-16 | 凯特克分部尤尼克斯公司 | For tightening the device of threaded fastener |
| CN112743467A (en) * | 2020-12-08 | 2021-05-04 | 上海航天设备制造总厂有限公司 | Centrifugal clamping device and method for rotating process step |
-
2014
- 2014-10-30 CN CN201420636571.XU patent/CN204312645U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110023035A (en) * | 2016-02-24 | 2019-07-16 | 凯特克分部尤尼克斯公司 | For tightening the device of threaded fastener |
| CN112743467A (en) * | 2020-12-08 | 2021-05-04 | 上海航天设备制造总厂有限公司 | Centrifugal clamping device and method for rotating process step |
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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: 20150506 Termination date: 20171030 |