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Handheld electric drill

An electric drill, hand-held technology, used in portable drilling rigs, drilling/drilling equipment, maintenance and safety accessories, etc., can solve the narrow space and structural space of electric tools, reduce the service life of electric tools, affect the normal operation of bearings, etc. problems, to achieve the effect of improving cooling effect, prolonging service life and improving service life

Active Publication Date: 2014-03-19
NINGBO HANPU TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the lubrication method of electric tools is grease lubrication. Although electric tools are small in size, their speed is very high. For example, the speed of hand-held electric drills can reach 1500 revolutions per minute. Such a high speed makes the grease heat quickly. Thinning, resulting in bearing oil shortage and rolling, affecting the normal operation of the bearing and reducing the service life of the electric tool
[0004] As we all know, high-speed rotating components are usually lubricated with lubricating oil, but due to the constraints of the small space and structural space of electric tools, oil lubrication has not been possible

Method used

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. However, the uses and purposes of these exemplary embodiments are only used to illustrate the present invention, and do not constitute any form of limitation to the actual protection scope of the present invention, nor limit the protection scope of the present invention thereto.

[0026] Such as figure 1 , figure 2 , image 3 and Figure 4 Commonly shown in , the present invention provides a hand-held electric drill, said hand-held electric drill mainly includes a housing, and a power shaft 3 is installed in the housing through a front bearing 4 and a rear bearing 5 which are arranged oppositely. The two ends are respectively provided with a front bearing end cover 6 and a rear bearing end cover 7, one end of the power shaft 3 protrudes from the front bearing end cover 6 and a drill bit 9 is installed, and the other end of the power shaft 3 is rotated...

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Abstract

The invention discloses a handheld electric drill, and belongs to the technical field of electric tools. The handheld electric drill mainly comprises a shell body, a power shaft is mounted in the shell, the two ends of the shell body are provided with a front bearing end cap and a rear bearing end cap respectively, the space defined by the front bearing end cap, the rear bearing end cap and the shell forms a bearing chamber, and lubricating oil is filled in the bearing chamber. A handheld part is connected to one end, close to the rear bearing end cap, of the shell, the end portion of the handheld part is connected to an oil tank, the oil tank is communicated with the bearing chamber through an oil inlet pipe and an oil return pipe, a first power pump is arranged on the end portion, located inside the oil tank, of the oil inlet pipe, the handheld part is provided with a hollow power source mounting chamber, an electromotor is mounted in the power source mounting chamber, the electromotor is in transmission connection with a power shaft through a bevel gear pair, and the oil inlet pipe and the oil return pipe both penetrate through the power source mounting chamber. According to the handheld electric drill, lubricating oil lubrication is achieved, the service life of the handheld electric drill is prolonged, and the handheld electric drill is widely applied to the processing and manufacturing of electric tools.

Description

technical field [0001] The invention relates to a hand-held electric drill, which belongs to the technical field of electric tools. Background technique [0002] Electric tools are popular for their small size, easy to carry and use, and they are used in many places, such as electric drills, electric grinders, electric impact drills, electric saws, etc., which are processed on objects that are not easy to move Required planes, holes or slots, etc. [0003] At present, the lubrication method of electric tools is grease lubrication. Although electric tools are small in size, their speed is very high. For example, the speed of hand-held electric drills can reach 1500 revolutions per minute. Such a high speed makes the grease heat quickly. Thinning, resulting in bearing oil shortage rolling, affecting the normal work of the bearing, reducing the service life of electric tools. [0004] As we all know, lubricating oil is usually the best way to lubricate high-speed rotating com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B45/02B23Q11/12
CPCB23B45/001B23B45/02B23Q11/123
Inventor 陈会甫
Owner NINGBO HANPU TOOLS
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