Clutch structure for electric hammers

Abstract

The invention relates to a clutch structure for electric hammers. The clutch structure comprises a crankshaft, a clutch gear, a clutch, guide keys and a support gasket. Key grooves are formed in the crankshaft, the guide keys are fixedly mounted in the key grooves, the clutch gear sleeves the crankshaft, one end of the clutch gear is butted to a shaft shoulder of the crankshaft, the support gasketis mounted between the other end of the clutch gear and the guide keys, two sides of the support gasket cling to the clutch gear and the guide keys, the clutch sleeves the guide keys and can slide along the guide keys, a meshing structure is arranged between the clutch and the clutch gear, and the clutch is connected with the clutch gear when sliding toward the clutch gear, and is separated fromthe clutch gear when sliding towards the other side. The clutch structure for the electric hammers has the advantages that chiseling functional clutch can be carried out by the clutch structure, the clutch structure is compact, the overall volumes of the electric hammers can be diminished, and stress conditions of serrated shafts of motors can be improved.

Description

technical field [0001] The invention relates to the technical field of electric hammers, in particular to a clutch structure of electric hammers. Background technique [0002] The electric hammer is a commonly used electric tool. With the development of the electric tool industry, the requirements for its functions are getting higher and higher. [0003] The principle of the electric hammer is that while the transmission mechanism drives the drill bit to rotate, it also has a reciprocating hammering movement in a direction perpendicular to the rotary head. The electric hammer is driven by the transmission mechanism to drive the piston to reciprocate and compress the air in a cylinder. The periodic change of the air pressure in the cylinder drives the hammer in the cylinder to reciprocate and hit the top of the brick, as if we use a hammer to hit the brick, hence the name electric hammer. The electric hammer is popular among users because of its four functions of single hamm...

AI Technical Summary

Problems solved by technology

However, when the bearing at the lower end of the small bevel gear assembly adopts a needle bearing, the meshing point of the cylindrical gear will be moved up. If the clutch structure of the chisel gear still adopts the traditional layout of the clutch on the upper gear and the lower gear, it will make the The gear meshing point moves down, resulting in the lengthening of the motor gear shaft, which in turn increases the volume of the electric hammer. At the same time, the gear meshing points on both sides of the motor gear shaft cannot be on the same level, and the force is poor.

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