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Multifunctional electric hammer

A multi-functional, electric hammer technology, used in portable impact tools, drilling/drilling equipment, portable drilling rigs, etc., to achieve the effect of compact structure, simple operation and convenient function conversion

Active Publication Date: 2009-07-08
CHANGZHOU TONGYANG ELECTRICAL MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem solved by the present invention is that when the existing multifunctional electric hammer realizes function conversion, the resistance to the operation knob is relatively large, and the user feels bad

Method used

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Examples

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Embodiment Construction

[0025] The invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] The present invention described in the embodiment comprises a front end component and a rear end component (this part or the prior art is the same, so not shown); the front end component is a transmission control part, and the rear end component is a power part.

[0027] The front end components include front end housing 7, base 10, drive shaft assembly 11, impact shaft assembly 5, hammer slide 20, drill slide 21, first slide spring 19, second slide spring 19', inner knob 22, outer knob 23, Anti-rotation plate 24 etc., wherein:

[0028] The transmission shaft assembly 11 is mainly composed of the transmission shaft 12, the gear 49 sleeved on the transmission shaft 12 and connected to the power part, the swing rod bearing 13 sleeved on the transmission shaft 12, the axially slidable bearing 13 sleeved on the transmission shaft 12 to connect with the pendu...

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Abstract

A multifunction electric hammer comprises a front-end component and a back-end component. A transmission shaft component 11 of the front-end component comprises a transmission shaft 12, a gear 49 sheathed on the transmission shaft 12, a swing rack bearing 13, a clutch 15 endwise slipping to be meshed or separated with the swing rack bearing 13 and a sliding axle tooth 18. An impacting shaft component 5 of the front-end component comprises an impacting shaft 6, a gear 8 driving the impacting shaft 6 to turn, a piston 9 driving the drill to move along the axial direction. The multifunction electric hammer also comprises a hammer sliding plate 20 sliding axially along the transmission shaft 12, a drill sliding plate 21, a first sliding plate spring 19 connecting the hammer sliding plate 20 with the base 10, and a second sliding plate spring 19' connecting the drill sliding plate 21 with the base 10. The hammer sliding plate 20 is connected with a side guide 33 for sliding the sliding axle tooth 18 to move axially. The drill sliding plate 21 is connected with a side guide 34 for sliding the clutch 15 to move axially. The invention realizes the transformation of the four functions containing hammering, regulating angle, hammering drill and drilling by a button, and has a compact structure, reliable action as well as convenient installation and use.

Description

technical field [0001] The invention belongs to the technical field of electric tools in the machinery industry, and in particular relates to a multifunctional electric hammer which uses a single knob to realize four functions of single hammer, angle adjustment, hammer drill and drill. Background technique [0002] Existing electric hammers that use a single knob to realize the conversion between hammer, hammer drill, drill, angle adjustment and other functions need to push the gear assembly set on the output shaft when switching from the hammer drill function to the angle adjustment and hammer function When moving, when converting from the hammer and angle adjustment function to the hammer drill function, the gear assembly relies on the return spring to promote the reset. The gear assembly has the function of tripping protection, and is composed of gears, bushings, springs, retaining rings, etc. Therefore, the gear assembly is large in size and heavy in weight, and the pres...

Claims

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Application Information

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IPC IPC(8): B23B45/16B25D16/00
Inventor 杨庆生陈松年
Owner CHANGZHOU TONGYANG ELECTRICAL MFG
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