Portable electric wrench
The utility model relates to a portable electric wrench. The utility model has the structure that a centrifugal clutch is connected with a direct-current motor and a flywheel; the inner center the flywheel is provided with a main shaft by a bearing; the middle of the main shaft has a fan-shaped lug;...
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Main Author | |
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Format | Patent |
Language | English |
Published |
08.11.2006
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Subjects | |
Online Access | Get full text |
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Abstract | The utility model relates to a portable electric wrench. The utility model has the structure that a centrifugal clutch is connected with a direct-current motor and a flywheel; the inner center the flywheel is provided with a main shaft by a bearing; the middle of the main shaft has a fan-shaped lug; one tail end of the main shaft has a square tenon which can be sheathed with various sleeve barrels; a pair of connecting shafts are symmetrically arranged in the flywheel at both sides of the fan-shaped lug of the main shaft; impacting pieces which can rotate and are controlled by a resetting device are sheathed on the connecting shaft; a wrench housing is covered at the outer surfaces of the flywheel, and the direct-current motor and the centrifugal clutch; the square tenon at the tail end of the main shaft extends out of the machine housing. The direct-current motor drives the flywheel to rotate at high speed to accumulate the energy, and the impacting pieces in the flywheel impact the fan-shaped lug on the main shaft to make the main shaft rotate and output the torque to screw (loose) a bolt and a nut. The utility model has the advantages of small volume, light weight, portability, safety and reliability, and can generate the large torque. |
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AbstractList | The utility model relates to a portable electric wrench. The utility model has the structure that a centrifugal clutch is connected with a direct-current motor and a flywheel; the inner center the flywheel is provided with a main shaft by a bearing; the middle of the main shaft has a fan-shaped lug; one tail end of the main shaft has a square tenon which can be sheathed with various sleeve barrels; a pair of connecting shafts are symmetrically arranged in the flywheel at both sides of the fan-shaped lug of the main shaft; impacting pieces which can rotate and are controlled by a resetting device are sheathed on the connecting shaft; a wrench housing is covered at the outer surfaces of the flywheel, and the direct-current motor and the centrifugal clutch; the square tenon at the tail end of the main shaft extends out of the machine housing. The direct-current motor drives the flywheel to rotate at high speed to accumulate the energy, and the impacting pieces in the flywheel impact the fan-shaped lug on the main shaft to make the main shaft rotate and output the torque to screw (loose) a bolt and a nut. The utility model has the advantages of small volume, light weight, portability, safety and reliability, and can generate the large torque. |
Author | JIADING LI |
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Notes | Application Number: CN2005243942U |
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Snippet | The utility model relates to a portable electric wrench. The utility model has the structure that a centrifugal clutch is connected with a direct-current motor... |
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SubjectTerms | HAND TOOLS MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING |
Title | Portable electric wrench |
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