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Embedded brushless motor direct-drive cutting machine

A brushless motor and cutting machine technology, applied in the direction of DC motor speed/torque control, electromechanical devices, electrical components, etc., can solve the problems of high noise, slipping affecting speed, low motor efficiency, etc., to achieve low noise and prevent burning machine, cutting torque effect

Inactive Publication Date: 2017-05-10
浙江锋利工具制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The AC series motor has high-speed variable speed through the gear, the noise is large when the gear is driven, the motor efficiency is low, and the motor efficiency is only 50-55%
The belt drive is prone to slipping and affects the speed

Method used

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  • Embedded brushless motor direct-drive cutting machine
  • Embedded brushless motor direct-drive cutting machine

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Embodiment Construction

[0017] Combine below figure 1 and figure 2 The present invention is further described in detail with examples.

[0018] Such as figure 1 and figure 2 As shown, the embedded brushless motor direct drive cutting machine includes: a base and a machine head hinged with the base. The machine head has an aluminum alloy casing 12, a handle 2, a protective cover 6, and a grinding wheel sheet 7. Inside the aluminum alloy casing 12 are: a brushless motor embedded in one piece, the brushless motor includes a motor shaft 15, a rare earth strong magnetic sheet 14, a motor stator 13, and a motor end cover 17, and there are two fan blades 16 on the outside of the motor end cover 17 Intelligent electronic circuit board 18 . Intelligent electronic control box cover is arranged on casing 12. The motor shaft 15 fixes the grinding wheel sheet through the pressing plate back ring 22, the inner pressing plate 19a of the emery wheel, the outer pressing plate 19b of the emery wheel, the press...

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Abstract

The invention relates to the field of electric tools and discloses an embedded brushless motor direct-drive cutting machine which comprises a base and a machine head. The machine head is provided with a grinding wheel, a handle and an aluminum alloy machine shell. A brushless motor is embedded into the aluminum alloy machine shell, directly drives the grinding wheel, and is controlled by an intelligent electronic control device to achieve reversing, current protection and rotating speed compensation of a motor stator. The energy efficiency ratio of the motor can reach up to 87%, and average energy conservation reaches 50% or above. The brushless motor has no carbon brush spark, and a power system is provided with overload protection to avoid the phenomenon of burnout caused by overload of a common alternating current series motor. The service life of the cutting machine is five times that of a traditional cutting machine or above. The brushless motor is directly embedded into the aluminum alloy machine shell and is small in size, the motor stator is directly embedded into the aluminum alloy machine shell, and the cooling performance is greatly improved. Intelligent electronic control is achieved, and the cutting efficiency and the motor running stability and safety are improved.

Description

technical field [0001] The invention relates to the field of electric tools, in particular to an embedded brushless motor direct drive cutting machine. Background technique [0002] At present, cutting machines on the market are powered by AC series motors, and drive grinding wheels through high-magnification variable-speed transmissions of gears to cut metal materials. The other is the asynchronous motor as the power, which drives the grinding wheel to cut through the belt pulley deceleration. The AC series motor has a high-speed variable speed through the gear, and the noise is large when the gear is driven, and the motor efficiency is low, and the motor efficiency is only 50-55%. The belt drive is prone to slipping and affects the speed. Therefore, it is necessary to carry out scientific and technological innovation to the existing cutting machine, and change the history of the traditional metal cutting machine mechanical structure unchanged. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B27/06B24B49/10B24B49/16B24B55/00H02K5/02H02P7/00
CPCB24B27/06B24B27/0683B24B49/10B24B49/16B24B55/00H02K5/02H02P7/00
Inventor 王永浪
Owner 浙江锋利工具制造有限公司
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