Electric hammer with composite axial spiral impact device

A technology of electric hammer and spiral groove, applied in the field of electric tools, can solve the problems of complex structure, low energy conversion efficiency, high failure rate, etc., and achieve the effect of simple structure design, low manufacturing cost, and good engineering application value

Inactive Publication Date: 2019-03-15
TECHTRONIC POWER TOOLS TECHNOLOGY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, both methods have the disadvantages of complex structure, high failure rate, and low energy conversion efficiency.

Method used

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  • Electric hammer with composite axial spiral impact device
  • Electric hammer with composite axial spiral impact device
  • Electric hammer with composite axial spiral impact device

Examples

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Embodiment Construction

[0033] In this specification and in the appended claims, "coupled" means that two parts can be connected to each other to realize the transmission of force, but it does not mean that the two parts need to be permanently connected. Instead, the two components can be coupled to each other some of the time and separated from each other at other times.

[0034] In addition, the movement direction, return direction, and impact direction of the impact member are also described in this specification and the appended claims. It should be understood that these names are only used to distinguish the movement of the impact member in different directions in one cycle, rather than to limit the absolute direction or orientation in three-dimensional space.

[0035] first look at figure 1 , the first embodiment of the present invention is an electric tool, specifically an electric hammer, which includes an impact mechanism 40 . The impact mechanism 40 includes a main shaft 20, and an impact...

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PUM

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Abstract

The invention discloses an electric hammer. The electric hammer comprises a motor, a spindle connected to the motor and suitable for being driven by the motor, an impact part suitable for being coupled to the spindle and driven by the spindle, a direction changing device suitable for being coupled with the impact part, an energy storage device coupled to the impact part and an output part; the direction changing device is arranged to change the motion direction of the impact part, after the motion direction is changed, the kinetic energy of the impact part is provided for the energy storage device for accumulation, the energy storage device is suitable for returning the accumulated energy to the impact part, and the impact force generated by the impact part is sent to the output part. Theelectric tool is low in manufacturing cost, good energy conversion efficiency is achieved, the hammer is mainly used for providing instant impact force, and the good engineering application value is achieved.

Description

technical field [0001] The invention relates to an electric tool, in particular to an electric hammer for generating impact force in a straight line. Background technique [0002] An electric hammer is an electric tool, which is a type of electric drill. The electric hammer specifically utilizes the mechanical driving force generated by the motor to generate the impact force in the linear direction through the impact device. Therefore, the electric hammer can make holes in hard materials such as concrete, bricks, and stones without the user's hand making much effort. Generally speaking, the electric hammer can have multiple operation modes, such as only rotation without impact, only impact without rotation, or both rotation and impact, so as to achieve different purposes of operation. [0003] Most of the existing electric hammers convert the rotational driving force generated by the motor into the impact force in the linear direction by means of gas drive or swing bearing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25D11/04B25D11/06
CPCB25D11/04B25D11/06B25D11/104B25D11/068B25D16/00B25D2211/06B25D2250/095B25D2250/331
Inventor 梁瑞麻立国
Owner TECHTRONIC POWER TOOLS TECHNOLOGY LTD
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