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Power tool

A power tool and active technology, applied in the field of multifunctional power tools, can solve the problems of easy wear and low stability of stoppers, and achieve the effects of simple and stable structure, convenient operation and low manufacturing cost

Active Publication Date: 2013-07-03
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the above-mentioned function conversion mechanism is switched to the electric drill function, the rotation transmission depends on the chute ball structure between the main shaft and the active impact block. The stopper that moves axially backward will be subjected to a large force of the active impact block, and the active impact block rotates relative to the stopper, which makes the stopper easy to wear, so the stability of this rotation transmission is low

Method used

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Experimental program
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Embodiment Construction

[0034] Figure 1 to Figure 4 Shown is a specific embodiment of the power tool 100 of the present invention, in this embodiment, the power tool 100 has impact wrench function and drilling function. Such as figure 1 As shown, the power tool 100 includes a casing 1 arranged horizontally, a handle 6 arranged at a certain angle to the casing 1 , and a detachable battery pack 8 at the bottom of the handle 6 . The front end of the casing 1 is provided with a tool chuck 52, which is used to respectively clamp different working heads (not shown) when the power tool realizes different functions, such as clamping the fastening head when realizing the function of the impact wrench, and realizing the drilling Hold the twist drill when entering the function. The handle 6 is provided with a switch 9 , and the operator can start the power tool 100 by pressing the switch 9 . There is also a function switching button 44 on the casing 1 , and the operator can switch the working function mode ...

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PUM

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Abstract

The present invention relates to a power tool, comprising: a housing; a motor; a speed adjusting system decelerating the rotate speed of said motor, said speed adjusting system comprises a output, a main shaft connecting to said output, and a working shaft employed for adapting with corresponding working head during working, said main shaft is connected with an hammer, said hammer can move axially against said main shaft, said working shaft is connected with an anvil, said anvil rotates together with said working shaft, said hammer having first teeth and said anvil having second teeth, said hammer drives the anvil on rotate direction through the cooperation between said first teeth of the hammer and said second teeth of anvil; wherein said power tool also comprises: a clutch, which can move between the first position and the second position so as to optionally rigidly connect said hammer with at least one of said output and said main shaft.

Description

technical field [0001] The invention relates to a power tool, in particular to a multifunctional power tool capable of realizing the functions of an impact wrench, an electric drill, an electric screwdriver or an impact drill. Background technique [0002] In existing power tools, impact wrenches are used to tighten threaded fasteners to workpieces. Its structure usually includes a main shaft driven by a motor, an active impact block that is connected to the main shaft through a spiral groove and a ball, and a working shaft that is located in front of the active impact block and cooperates with the active impact block through end teeth. An impact spring is also arranged behind the active impact block, which presses the active impact block to keep the active impact block in reliable cooperation with the working shaft. During the working process, the rotational movement of the main shaft is directly output to the threaded part through the active impact block and the passive i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25F3/00B25B21/02B25B21/00B23B45/02B23B45/16B25D16/00
CPCB25B21/00B25B21/026B25F5/001
Inventor 李成道
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD