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Clutch of electric tool

A technology of electric tools and clutches, applied in the field of clutches, which can solve the problems of long braking time and easy damage of braking parts, and achieve the effects of fast stopping speed, long service life and small wear

Inactive Publication Date: 2008-12-24
ZHEJIANG YAT ELECTRICAL APPLIANCE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The clutch of the existing electric chain saw, such as the claw clutch of the electric tool disclosed in the US patent, includes a first gear mounted on and attached to a rotatable shaft; a second gear rotatably mounted adjacent to the first gear; a control mechanism, the second gear is rotatably mounted on the shaft and is slidable axially along the shaft and biased towards the first gear; the control mechanism is rotatably mounted adjacent to the second gear and is slidable radially along the axis of rotation, After being assembled in this way, the rotational movement of the control mechanism becomes the axial sliding of the control mechanism, whereby the second gear is moved into or out of the driving mechanism of the first gear through the rotational movement of the control mechanism according to the direction of rotation. Move the rotating shaft, so the braking time needs to be longer, and the brake parts are easily damaged

Method used

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] like figure 1 As shown, the clutch of the electric tool includes a first gear 27 mounted on the motor shaft, a second gear 10 meshing with the first gear, an output shaft 7 , and a clutch mechanism between the output shaft 7 and the second gear 10 .

[0031] The first gear 27 is fixed on the motor shaft by a nut 26 , the motor shaft is fixed on the support plate 17 , and the first gear 27 meshes with the second gear 10 .

[0032] The output shaft 7 is provided with a section of teeth 71 uniformly distributed along the radial direction of the shaft, and the two ends are fixed on the support plate 17 and the casing by the bearing 2 and the bearing 15 respectively, and the gasket 5, the shaft retaining ring 4 and the Backing ring covers 14 limit.

[0033] The second gear 10 is divided into two parts, the outer ring and the ratchet insert...

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Abstract

A clutch for electric tool contains a first gear equipped on motor shaft, a secondary gear meshing the first gear and an output shaft. A section of uniform tooth is arranged along the shaft diameter on the output shaft. The secondary gear arranging couples of perforations around circle is fixed on the output shaft. Correspondingly, couples of driving pegs are set in perforations. One ends of them connect with roof and the other ends link off-port ratchet wheel. Adjoining planes of the secondary gear and the off-port ratchet wheel are matched and buckled by tooth. The other side of the off-port ratchet wheel is pressed by a spring and the other end of spring is spaced by shell. Uniform trapezoidal sloping is arranged on the other end of roof and corresponding sliding plate. A reset reed is set at bottom of sliding plate to reset it. Based on this assembling, large gear fixes with off-port ratchet and output shaft when rotating the sliding plate and they are disengaged when resetting the sliding plate. The invention has merits of quicker clutch, small wearing, long lifespan and accurate positioning.

Description

technical field [0001] The invention relates to a clutch of an electric tool. Background technique [0002] The clutch of the existing electric chain saw, such as the claw clutch of the electric tool disclosed in the US patent, includes a first gear mounted on and attached to a rotatable shaft; a second gear rotatably mounted adjacent to the first gear; a control mechanism, the second gear is rotatably mounted on the shaft and is slidable axially along the shaft and biased towards the first gear; the control mechanism is rotatably mounted adjacent to the second gear and is slidable radially along the axis of rotation, After being assembled in this way, the rotational movement of the control mechanism becomes the axial sliding of the control mechanism, whereby the second gear is moved into or out of the driving mechanism of the first gear through the rotational movement of the control mechanism according to the direction of rotation. The rotating shaft is moved, so the braki...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D23/12F16D11/16B27B17/10
Inventor 陈勇
Owner ZHEJIANG YAT ELECTRICAL APPLIANCE CO LTD
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