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Eccentricity regulating mechanism

A technology of adjusting mechanism and eccentric distance, which is applied in the direction of eccentric wheel, grinding machine parts, crank, etc., can solve the problems of easy displacement of eccentric distance, limited application range, poor reliability and other problems, and achieves wide application range, The effect of reliable performance and reasonable structure

Inactive Publication Date: 2006-08-09
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the working balance of such an eccentricity adjustment mechanism is not very good, its reliability is not good, its set eccentricity is easy to shift, and it can only be used to adjust a single bottom plate (sand disc), so that the scope of application is limited. limit

Method used

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  • Eccentricity regulating mechanism
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Examples

Experimental program
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Effect test

Embodiment Construction

[0018] refer to figure 1 , the sanding electric tool corresponding to the present invention is a sanding machine, shown as a sanding machine corresponding to the first embodiment, which includes a casing 1, a motor 2 vertically arranged in the casing 1, a transmission Main shaft 3, bottom (sand) disc 4 and eccentricity adjustment mechanism 5.

[0019] With further reference to Figure 2 to Figure 6 , the casing 1 is divided into an upper half casing 12 and a lower half casing 14, which are fixedly connected. The fan 16 is fixedly sleeved on the transmission shaft 3 . Corresponding to the preferred embodiment of the present invention, the drive shaft 3 includes an armature shaft 30 and a connecting shaft 32 fixedly connected to the lower end of the armature shaft 30. The connecting shaft 32 is coaxially arranged with the armature shaft 30, and has a central axis X0, and has a profiled profile. In addition, the connecting shaft 32 can also be integrally formed with the armat...

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Abstract

The invention relates to a linear eccentricity adjusting mechanism that is used on the electric tool having drive main shaft on it. It includes first eccentricity component, second eccentricity component and the connect component. The first eccentricity component and the second eccentricity component have first center axis and the second center axis which has alterable eccentricity relative to the center axis of the main shaft. The invention is reliable and the structure is reasonable. It has wide range of application.

Description

Technical field [0001] The invention relates to an eccentricity adjustment mechanism used in electric tools. Background technique [0002] With reference to U.S. Patent No. 4,744,177 and European Patent No. 0820838B1, etc., existing grinding electric tools, such as sanders, angle grinders, etc., generally include a casing, a motor vertically arranged in the casing, a transmission spindle, and a bottom (sand) ) disc and eccentricity adjustment mechanism. The eccentricity adjustment mechanism is used to adjust the eccentricity of the sand disc to obtain a suitable swing amplitude according to workpiece surfaces with different machining accuracy requirements. The eccentricity adjustment mechanism generally includes an eccentric shaft fixedly connected to the main shaft, an eccentric driving device arranged eccentrically relative to the main shaft of the eccentric shaft, and a bearing element connecting the eccentric driving device and the bottom (sand) disc. However, the work...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B23/03
CPCF16C3/28B24B41/04B24B23/04
Inventor 陈成忠
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD
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