Anti-vibration arrangement, tool using said anti-vibration arrangement and its method for cleaning working surface

A vibration-damping device and tool technology, applied in the direction of manufacturing tools, metal processing equipment, grinding machine parts, etc., can solve problems such as reducing the ability of the human body to eliminate vibration

Inactive Publication Date: 2006-03-22
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, this increased muscular stress reduces the body's own...

Method used

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  • Anti-vibration arrangement, tool using said anti-vibration arrangement and its method for cleaning working surface
  • Anti-vibration arrangement, tool using said anti-vibration arrangement and its method for cleaning working surface
  • Anti-vibration arrangement, tool using said anti-vibration arrangement and its method for cleaning working surface

Examples

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Embodiment Construction

[0150] Refer to attached figure 1, discloses an eccentrically rotating and oscillating tool 1, such as a sander or a polishing machine, incorporating a vibration damping device according to an embodiment of the present invention.

[0151] Eccentrically rotating and oscillating tools 1 basically have a casing 2 with a handle 3 and an inner cavity 4 to accommodate a motor 5, such as a motor, with a motor shaft 11 and a longitudinal centerline 12. The motor shaft 11 is composed of a ball bearing and a needle bearing. Or oil bearing support. Motor 5 can not be electric, as also can be pneumatic. Axis 12 may also be referred to as the motor shaft centerline or axis of rotation. The motor 5 can work at any speed, even very high speeds. The typical design range of the rotational speed of the motor 5 is 2000-12000 revolutions per minute.

[0152] The power switch 7 is arranged on the handle 3 so that the operator is easy to operate, and it connects the motor 5 to the main power su...

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Abstract

The invention relates to an eccentrically rotary swinging tool (1) which comprises a shell (2), an electric motor (4) arranged on the shell, a motor shaft (11), a first annular outer pad (16) connected with a first frosted piece (8) and a second round inner pad (22) connected with a second frosted piece (9); a vibration absorber (10) transmits the energy of the electric motor (4) to pads (6 and 22) through reverse movement, thereby inertia and friction are compensated by motion. At the same time, the vibration which is transmitted to the motor shaft (11) and then to an operator of the tool is greatly reduced. Even if the operator increases the force to the eccentrically rotary swinging tool (1) in order to increase the depth of grinding or to improve the speed of the grinding, the same effect also can be obtained. To achieve the aim, cams (18a and 18b) are fixed on the motor shaft (11) and drive center lines (5 and 21) of the pads (6 and 22) to rotate 180 degrees reversely around the center line (12) of the electric motor.

Description

Technical field [0001] The invention relates to the field of a portable electric tool acting on the surface of a working surface. In particular, it relates to a vibration damping device for eccentrically rotating and oscillating tools, especially sanding machines and polishing machines. It also relates to other electromechanical machines using the same damping devices, and methods of grinding and polishing workpiece surfaces Background technique [0002] It is well known that the above-mentioned eccentrically rotating and oscillating tools, such as sanding tools, usually include a floor or pad to support an abrasive body, such as sandpaper. The pads are connected by suitable gearing to the motor, which is mounted on a housing with one or more handles. The transmission mode is embodied as that the motor shaft drives the cam to rotate. The cam is mounted in a round hole in the center of the pad. The rotation of the cam drives each point on the pad along a circular trajecto...

Claims

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Application Information

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IPC IPC(8): B24B23/03B24B41/00
CPCB24B41/007B24B23/03
Inventor 强尼·鲍瑞那图保罗·安德罗
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD
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