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Power tool

A technology for power tools and moving ends, which is applied to manufacturing tools, portable mobile devices, etc., can solve problems such as the difficulty of further reducing the number of components and the difficulty of setting up a function conversion mechanism, and achieve the effect of simplifying setting and adjustment.

Active Publication Date: 2012-02-01
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology requires two different ring gears to perform the above two function switching respectively, and two ring gears means that it is difficult to further reduce the number of components, and it is difficult to set up the function conversion mechanism

Method used

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Examples

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Embodiment Construction

[0057] Figure 1 to Figure 17 What is shown is a specific embodiment of the power tool of the present invention, and the power tool is specifically a multifunctional drill 1. Multi-function drill 1 has impact wrench function, high-speed drilling function, low-speed drilling function, screwdriver function, among which high-speed drilling function and low-speed drilling function can also be collectively referred to as drilling function.

[0058] Such as figure 1 As shown, the multifunctional drill 1 is similar to a pistol, and includes a substantially cylindrical casing 3, a handle 5 arranged at a certain angle to the casing 3, and a battery pack 7 detachably arranged at the bottom of the handle 5. The housing 3 has a longitudinal axis 10.

[0059] The front end of the housing 3 is provided with a chuck 9 for clamping the working head, which is used to clamp different working heads (not shown) when the multifunctional drill 1 realizes different functions, such as clamping when the i...

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Abstract

The invention relates to a power tool, comprising a shell, a motor and a planetary gear speed reduction system, wherein the motor is arranged in the shell and is provided with an output shaft for providing rotary output; the planetary gear speed reduction system comprises a sun gear, a planetary gear meshed on an output gear of the sun gear, an inner gear ring surrounding the planetary gear, moving end teeth, and a selectable rotation stopping member; the inner gear ring is provided with a first position and a second position in an axial direction; at the first position, the inner gear ring is simultaneously meshed with the sun gear and the planetary gear; at the second position, the inner gear ring is meshed with the planetary gear and separated from the sun gear; when the inner gear ring is at the second position, the inner gear ring is meshed with the moving end teeth so as to realize mutual locking in the circumferential direction; and the rotation stopping member is used for locking the circumferential rotary motion of the moving end teeth. Compared with the prior art, the power tool provided by the invention has the advantage that the arrangement and the adjustment of the inner gear ring are simplified by arranging the moving end teeth matched with the inner gear ring.

Description

Technical field [0001] The invention relates to a power tool, in particular to a power tool with an inner gear ring with a speed switching function. Background technique [0002] Power tools, especially drill-type power tools, usually have a planetary gear reduction system, which is used to reduce the high speed of tens of thousands of revolutions directly output by the motor to a lower speed suitable for drilling work. The planetary gear reduction system usually includes a planet carrier, planetary gear, sun gear, ring gear, etc., which are combined to reduce the motor speed many times. [0003] Power tools are developing in the direction of miniaturization and multi-function. Drilling power tools have begun to be integrated. There are already multi-action drills on the market that have screwdriver functions, drilling functions, and high and low speed switching functions. Among them, the switching of the screwdriver function and the switching of the high and low speed functions i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25F5/00
Inventor 李成道纪明波
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD
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