a reciprocating tool

Abstract

The invention belongs to the field of electric tools and discloses a reciprocating type tool to solve the problems that the flashy load of a motor of the reciprocating type tool is overlarge and loss is relatively large. According to the technical scheme for solving the problems, the reciprocating type tool mainly comprises a case, a saw blade and a reciprocating lever connected with the saw blade; the motor used for driving the reciprocating lever to move is arranged in the case; a connection part in transmission connection with the motor is arranged on the reciprocating lever; and a spring assembly used for reducing the reversing load of the reciprocating lever is arranged between the case and the reciprocating lever. According to the reciprocating type tool, not only is the rigid impact between the reciprocating lever and the case reduced, but also the impact energy is converted into kinetic energy through the spring assembly; and the energy utilization rate is increased, the maximum instantaneous output power of the motor is reduced at the same time, and the configuration requirements of the motor are lowered.

Description

technical field [0001] The invention relates to the field of electric tools, in particular to a reciprocating tool. Background technique [0002] Reciprocating tools include a saw blade and a reciprocating rod connected to the saw blade. The reciprocating rod drives the saw blade to reciprocate to cut objects, but when the reciprocating rod is in two extreme positions, it will produce rigid collisions. The reciprocating rod has a great impact on the casing and other parts. The large impact force and vibration greatly reduce the comfort of the operator; at the same time, the cutting edge of the saw blade has a direction, and when the reciprocating rod reaches the limit position of the reverse stroke, the motor needs to provide a large input power to realize the forward direction Movement, the motor is easily overloaded in an instant, which will cause great damage to the motor. [0003] In order to solve the above problems, the prior art provides a reciprocating saw, which in...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the prior art provides a reciprocating saw, which includes a motor, a housing for accommodating the motor, a frame connected to the housing and a head housing outside the frame. A guide sleeve is fixed on the top of the frame in the body, and there is a reciprocating rod for connecting the blades in the guide sleeve, and a set of balance weights arranged on the guide sleeve, which are symmetrical on the other side of the frame through a pin shaft. A balance weight drive pendulum that drives the reciprocating movement of the balance weight is provided. In the above scheme, the unbalanced force of the reciprocating rod in the reciprocating motion is eliminated by the reciprocating rod and the balance weight having the same motion trajectory but opposite movement directions, reducing the The vibration during the reciprocating saw work is eliminated, but the center of the balance weight driving pendulum is connected with the second roller through the second pin shaft. Not only to drive the reciprocating rod to move but also to make the balance weight move in the opposite direction, the output power of the motor is greatly increased, the motor is damaged and the power consumption is large

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