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Handheld electric tool

An electric tool and hand-held technology, which is applied in the field of hand-held electric tools, can solve problems such as accelerating gear wear and shortening the service life of hand-held electric tools, and achieves the effect of prolonging the service life and extending the service life

Active Publication Date: 2016-04-06
BOSCH POWER TOOLS CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After a period of operation, the hardened layer on the tooth surface of the adjacent gear is worn due to the continuous meshing of the gear teeth of the adjacent gear, which will accelerate the wear of the gear and eventually greatly shorten the service life of the hand-held power tool

Method used

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Examples

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Embodiment Construction

[0030] The preferred embodiments of the present invention will be described in detail below with reference to examples. Those skilled in the art should understand that these exemplary embodiments do not imply any limitation to the present invention.

[0031] figure 1 It is a simplified schematic diagram of the electric motor and transmission system of the hand-held electric tool whose tool head only performs reciprocating motion according to the present invention, figure 2 yes figure 1 Top view of a portion of the drivetrain in the state shown. exist figure 1 and 2 The present invention is shown by taking an electric pick as an example, and for the sake of simplicity, in figure 1 Only the main components of the motor and transmission system are shown in the figure, while other parts of the transmission system are omitted. Such as figure 1 As shown, the hand-held power tool with only reciprocating movement of the tool head includes an electric motor 1 with an output sha...

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Abstract

The invention relates to a handheld electric tool. A tool head of the handheld electric tool only moves in a reciprocating mode. The handheld electric tool comprises a motor and a transmission system. The transmission system can only convert rotating movement of the motor into reciprocating movement through gear engagement so as to drive the tool head of the handheld electric tool to move in the reciprocating mode. The motor can rotate bidirectionally and can be controlled to rotate in any one of the two directions. According to the handheld electric tool, tooth faces on the two sides of each tooth of each gear of the transmission system can be uniformly abraded, and therefore the service life of the handheld electric tool is prolonged.

Description

technical field [0001] The invention relates to a hand-held electric tool, in particular to a hand-held electric tool whose tool head only performs reciprocating motion. Background technique [0002] In hand-held power tools such as picks, jigsaws, reciprocating saws, etc., the motor rotates and a transmission system converts the motor's rotational motion into reciprocating motion to drive a tool head such as an impact head or saw blade to reciprocate . [0003] A transmission system has a plurality of transmission gears and transmits motion through meshing between the gears. A hardened layer is usually formed on the surface of the gear to prolong the service life of the gear. After running for a period of time, the hardened layer on the surface of the gear teeth is worn due to the continuous meshing of the teeth of the adjacent gears, which will accelerate the wear of the gears and eventually greatly shorten the service life of the hand-held power tool. [0004] Therefor...

Claims

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Application Information

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IPC IPC(8): B25D7/00B23D49/16B25F3/00B25F5/00
Inventor 杨红宋春雷
Owner BOSCH POWER TOOLS CHINA
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