Power tool

A technology of power tools and drive shafts, applied in the field of power tools

Active Publication Date: 2017-01-04
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a power tool to sol

Method used

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Examples

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Embodiment Construction

[0035] In this embodiment, a power tool such as a hammer drill 1 is taken as an example for illustration.

[0036] The Hammer Drill 1 has a drill mode and a hammer drill mode. In drilling mode, the working head only rotates without impact; in hammer drilling mode, the working head rotates and impacts.

[0037] Such as figure 1 As shown, the impact drill 1 includes a casing 10 , a motor 12 , a driving device, a cylinder 14 and a mode switching device 30 .

[0038] Specifically, the motor 12 is installed in the casing 10, the driving device is connected to the motor 12, and the motor 12 drives the driving device to move; the cylinder 14 is connected to the driving device, and the movement of the driving device drives the cylinder 14 to move.

[0039] From figure 1 It can be seen that the impact drill 1 also includes a hammer 16 and a chuck 18, the cylinder 14 is connected with the hammer 16, the hammer 16 is connected with the chuck 18, and the cylinder 14 moves to do work, s...

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PUM

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Abstract

The invention relates to a power tool. The power tool comprises an enclosure, a motor, a driving device, an air cylinder and a mode switching device. The power tool has a drill mode and a hammer drill mode. The driving device comprises a driving shaft, a driving part, a rotating sleeve and a cylindrical cam structure. The driving shaft and the driving part are both driven by the motor, and the rotating speed of the driving shaft and the rotating speed of the driving part are different. The cylindrical cam structure and the driving shaft can be connected in a separated mode. The driving part can drive the rotating sleeve to rotate. The mode switching device comprises a mode switching part used for driving the cylindrical cam structure to make axial movement. The mode switching part is provided with a first position and a second position in the axial direction. When the power tool is in the drill mode, the mode switching part is located at the first position, and the cylindrical cam structure is separated from the driving shaft. When the power tool is in the hammer drill mode, the mode switching part is located at the second position, the cylindrical cam structure is engaged with the driving shaft, and the driving shaft drives the cylindrical cam structure. By the adoption of the power tool, the power tool can achieve mode switching more stably, reliably and conveniently.

Description

technical field [0001] The invention relates to the technical field of power tools, in particular to a drilling power tool. Background technique [0002] Impact drills work by rotating and striking to create a continuous force and can be used on natural stone or concrete. When the impact drill is working, there is an adjustment knob at the drill chuck, which can be adjusted into two modes: ordinary electric drill and impact drill. [0003] Generally, the impact drill adopts the method of toggling the end teeth to realize the conversion between the ordinary electric hand drill and the impact drill. During the mode conversion process, this method may cause problems such as wear of the end teeth and cause the mode conversion to be impossible. . Contents of the invention [0004] Based on this, it is necessary to provide a power tool for the problem of how to perform mode conversion stably and reliably. [0005] A power tool, comprising a casing, a motor installed in the ca...

Claims

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Application Information

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IPC IPC(8): B25F3/00
Inventor 邱国富朱伯元
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD
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