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Handheld sanding machine

A sander and hand-held technology, applied in grinding/polishing equipment, grinding/polishing safety devices, machine tools suitable for grinding workpiece planes, etc., can solve problems such as poor load vibration characteristics

Inactive Publication Date: 2015-01-14
NANJING CHERVON IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If you use a counterweight that does not overcome the friction deflection angle, you can improve the spinning phenomenon of the hand-held sander, but the load vibration characteristics are not good

Method used

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Embodiment Construction

[0019] The hand-held sander according to the specific embodiment of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] like figure 1 As shown, taking a flat sander as an example, the handheld sander includes a body 1 , a motor 2 , a drive shaft 4 , an eccentric shaft 5 , fasteners 6 , a fan 7 and a bottom plate 3 . The motor 2 is accommodated in the casing 1 and connected to the first end 41 of the drive shaft 4 , and the drive shaft 4 can rotate around the first axis 10 . The body of the fan 7 is provided with a first surface 71 and a second surface 72 opposite to the first surface 71, the drive shaft second end 42 is combined with the mounting hole 70 on the first surface of the fan 7, and the second end of the fan 7 The eccentric shaft 5 is arranged on the surface 72 , and the eccentric shaft 5 rotates around the second axis 20 , wherein the first axis 10 is parallel to the second axis 20 . The present i...

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Abstract

A handheld sanding machine comprises a machine body, a motor, a driving shaft, an eccentric shaft, a fastening piece, a fan and a bottom plate; the motor is accommodated in a machine shell and is connected through the first end of the driving shaft; the driving shaft can rotate around a first axis; a first surface and a second surface opposite to the first surface are arranged on the body of the fan; the second end of the driving shaft is combined with a mounting hole in the first surface of the fan; the eccentric shaft can rotate around a second axis; the first axis is parallel to the second axis; a first fan blade area provided with ordinary fan blade parts is arranged on the first surface of the fan, wherein the eccentric shaft is arranged on the second surface of the fan; a counterweight area is arranged on at least one of the first surface and the second surface of the fan. The handheld sanding machine can alleviate or eliminate whirling moment borne vibration and loading vibration when a flat-plate sanding machine operates on a working face, the manoeuverability of the flat-plate sanding machine is greatly improved, and the comfort degree when the flat-plate sanding machine is used by an operator and the sanding efficiency are improved.

Description

technical field [0001] The invention relates to the field of electric tools, in particular to a hand-held sander for sanding wooden products such as floors and walls. Background technique [0002] As a common grinding tool, hand-held sanders have been widely used in various industries. Most of the hand-held sanders on the market have rotation torque and load vibration when grinding the surface to be processed, especially the half flat sand. This phenomenon leads to poor handling of the hand-held sander, which tends to sway to one side, and the wrist of the operator who uses the hand-held sander for a long time is prone to fatigue. [0003] The existing hand-held sanding machine can improve the load vibration by using a counterweight with a deflection angle to overcome the friction force, but it often increases the rotational torque of the hand-held sanding machine. If you use a counterweight that does not overcome the friction deflection angle, you can improve the spinnin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B7/18B24B55/00
CPCB24B7/18B24B7/182B24B55/00
Inventor 陈仕波陈治国李华李江
Owner NANJING CHERVON IND
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