CN2529781Y - Driving structure of knocking electric wrench - Google Patents
Driving structure of knocking electric wrench Download PDFInfo
- Publication number
- CN2529781Y CN2529781Y CN 02216523 CN02216523U CN2529781Y CN 2529781 Y CN2529781 Y CN 2529781Y CN 02216523 CN02216523 CN 02216523 CN 02216523 U CN02216523 U CN 02216523U CN 2529781 Y CN2529781 Y CN 2529781Y
- Authority
- CN
- China
- Prior art keywords
- motor
- utility
- friction wheel
- model
- driving structure
- 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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a driving structure for a knock-type electric spanner comprising a motor, a motor shaft and a clutch flywheel. The utility model is characterized in that the motor shaft is provided with a rubber friction wheel, the end surface of the clutch flywheel is equipped with an inside recess, and the inside recess closely cooperates with the rubber friction wheel. The utility model has the advantages of preventing the locking of the motor, and protecting the normal operation of the motor and other electric elements in the circuit.
Description
Technical field
The utility model relates to a kind of drive mechanism, particularly a kind of drive mechanism of percussive power-operated wrench.
Background technology
At present in the vehicle maintenance maintenance, often use the percussive power-operated wrench to turn bolt, but because the percussive power-operated wrench utilizes flywheel to bring gathering strength of it with motor and discharges to main shaft, when being locking state by stubborn bolt, flywheel stall and cause motor generation stall, produce big electric current and cause the damage of motor and other circuit component, Chinese patent also to disclose patents of some relevant power-operated wrenchs, but too complicated to the method for the processing of motor rotation blockage, solution.
Summary of the invention
The purpose of this utility model is to solve to use the percussive power-operated wrench to turn bolt in the prior art, but because the percussive power-operated wrench utilizes flywheel to bring gathering strength of it with motor and discharges to main shaft, when being locking state by stubborn bolt, flywheel stall and cause motor generation stall produces the problem that big electric current causes the damage of motor and other circuit component.The drive mechanism of the utility model design percussive power-operated wrench comprises motor, motor shaft, coupling flywheel, it is characterized in that: the rubber and plastic friction wheel is arranged on the motor shaft, on the coupling flywheel end face inner groovy is arranged, inner groovy and rubber and plastic friction wheel close-fitting.The utility model has the advantages that to prevent motor rotation blockage the normal operation of protection motor and other circuit component.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated,
Accompanying drawing is a structural representation of the present utility model,
Comprise motor 1, motor shaft 2, coupling flywheel 3 among the specific embodiment figure, it is characterized in that: rubber and plastic friction wheel 4 is arranged on the motor shaft 2, on coupling flywheel 3 end faces inner groovy 5 is arranged, inner groovy 5 and rubber and plastic friction wheel 4 close-fittings.When being twisted bolt locking, main shaft 6 can't rotate, coupling flywheel 3 therefore moment stalls, because the rubber and plastic friction wheel 4 on coupling flywheel 3 and the motor shaft 2 is a frictional connection, when coupling flywheel 3 moment stall, skid in the inner groovy 5 of rubber and plastic friction wheel 4 on coupling flywheel 3 end faces, thereby prevent motor 1 stall.
Claims (1)
- The drive mechanism of percussive power-operated wrench comprises motor, motor shaft, coupling flywheel, it is characterized in that: the rubber and plastic friction wheel is arranged on the motor shaft, on the coupling flywheel end face inner groovy is arranged, inner groovy and rubber and plastic friction wheel close-fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02216523 CN2529781Y (en) | 2002-04-01 | 2002-04-01 | Driving structure of knocking electric wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02216523 CN2529781Y (en) | 2002-04-01 | 2002-04-01 | Driving structure of knocking electric wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2529781Y true CN2529781Y (en) | 2003-01-08 |
Family
ID=33695502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02216523 Expired - Fee Related CN2529781Y (en) | 2002-04-01 | 2002-04-01 | Driving structure of knocking electric wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2529781Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402190B (en) * | 2007-10-01 | 2012-04-25 | 苏州宝时得电动工具有限公司 | Dynamic tool |
-
2002
- 2002-04-01 CN CN 02216523 patent/CN2529781Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402190B (en) * | 2007-10-01 | 2012-04-25 | 苏州宝时得电动工具有限公司 | Dynamic tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |