CN201195277Y

CN201195277Y - Hand-hold electric slicer shaft coupling transmission device

Info

Publication number: CN201195277Y
Application number: CNU200820087875XU
Authority: CN
Inventors: 周肃虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-28
Filing date: 2008-05-28
Publication date: 2009-02-18
Anticipated expiration: 2018-05-28

Abstract

The utility model belongs to the class of electric tools, in particular relates to a hand-holding type coupling shaft driving device for an electric cutter, which comprises an output shaft and a motor. The coupling shaft driving device is characterized in that a clutch spring is arranged in the output shaft, fixed by a cylindrical pin and connected with an output shaft coupler; the motor adopts a permanent magnet DC motor, the output end of the motor is fixedly connected with a motor coupler, and the output shaft coupler is coordinated with the motor coupler to form a clutch. The coupling shaft driving adopts the permanent magnet DC motor as the power, the output shaft coupler and the motor coupler form the clutch through the spring and the cylindrical pin so as to increase the creepage distance, improve the safety performance, and moreover, play the role of overload protection, and avoid overload damaging the driving motor. The product has the advantages of low energy consumption, low noise, small vibration, comfort and convenient operation, practicality, rapidness, safety and reliability.

Description

Hand electric cutting machine shaft coupling transmission device

Technical field

The utility model belongs to the electric tool class, specifically is a kind of hand electric cutting machine shaft coupling transmission device.

Background technology

Existing hand-held cutting machine generally all is a pneumatic structure, wide application, popularity rate height, but need corresponding machine such as air pump supporting, equipment heaviness, carrying are moved inconvenient, and tracheae is fragile, power is unstable; Adopt the hand-held cutting machine of the gear drive structure of the high-power series machine of AC system in addition, cost height, heaviness, feel are poor, and its noise is big, vibrations are big, power consumption is big, directly influence the practicality and the operability of product.

Summary of the invention

The purpose of this utility model is the deficiency at existing technology, and a kind of hand electric cutting machine shaft coupling transmission device low, that noise is low, the little employing permanent magnet DC motor of vibration is used as power that consumes energy is provided.

The technical solution of the utility model is as follows:

A kind of hand electric cutting machine of the utility model shaft coupling transmission device, comprise output shaft, motor, it is characterized in that: the clutch spring has been installed in the output shaft, fix by straight pin, and connect an output shaft shaft coupling, motor adopts permanent magnet DC motor, and the output of motor is fixedly connected with motor coupler, and the output shaft shaft coupling cooperates formation one clutch with motor coupler.

The utility model adopts that permanent magnet DC motor is used as power, the output shaft shaft coupling constitutes a clutch with motor coupler by spring and straight pin, increases creep age distance, improves security performance, and plays overload protective function, avoids transshipping the damage drive motors.This product has the advantages that power consumption is low, noise is low, vibration is little; And operation is more comfortable, convenient, practical, quick, safe and reliable.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the assembly drawing of Fig. 1.

Fig. 3 is the hand electric cutting machine that the utility model transmission device is housed.

The specific embodiment

Shown in Fig. 1,3, a kind of hand electric cutting machine shaft coupling transmission device, comprise output shaft 3, motor 9, it is characterized in that: clutch spring 4 has been installed in the output shaft 3, fixing by straight pin 6, and connect an output shaft shaft coupling 5, motor 9 adopts permanent magnet DC motor, the output of motor is fixedly connected with motor coupler 8, and output shaft shaft coupling 5 cooperates formation one clutch with motor coupler 8.

Shown in Fig. 2,3, the utility model when assembling, put clutch spring 4 into output shaft 3, again straight pin 6 is driven in output shaft 3, clutch spring 4 to be blocked, straight pin 6 two ends rivetings are flat; With anchor clamps output shaft 3 is assembled to casing 10 then, " O " type circle 7 is enclosed within the groove position of output shaft shaft coupling 5 back (groove is inside) and puts in the output shaft 3.Motor coupler 8 is compressed into motor 9 outputs.Put motor 9 into housing 10 from afterbody, like this coupling clutch installation of motor.

The utility model output shaft shaft coupling 5, motor coupler 8 under the situation of nonoverload are shaft couplings; Output shaft shaft coupling 5 has a mutual thrust with motor coupler 8 under the overload situations.Because motor coupler 8 is fixed, and output shaft shaft coupling 5 to be thrust by clutch spring 4 cooperate with motor coupler 8, in case the mutual thrust of output shaft shaft coupling 5 and motor coupler 8 greater than the thrust of clutch spring, shaft coupling has just become clutch.Motor just can not damage because of overload like this, rotates emery wheel after the clutch separation under powered-down, and clutch can synthesize shaft coupling.The material that coupling clutch uses is PA6, wear-resisting heatproof again, and cost hangs down the cost performance height.

The utility model has increased turbofan at the shaft coupling place, reduces the internal body temperature rise.

Shaft coupling transmission device of the present utility model is contained in the hand electric cutting machine housing, and cutting machine has also comprised cutting grinding wheel 1, wheel guard 2, housing 10, back casing 11, handle insurance 12, switch handle 13 etc., as shown in Figure 3.

When the utility model is worked when the hand electric cutting machine; if cutting the time is exerted oneself when excessive; the output shaft shaft coupling of housing 10 inside and the automatic stressed clutch of motor coupler meeting; at this moment as long as trip switch handle 13; catch grinding wheel 1 rotation gently with hand; output shaft shaft coupling and motor coupler can be compound automatically, and operate as normal is again effectively protected staff's the safety and the loss of grinding wheel again.

Claims

1. hand electric cutting machine shaft coupling transmission device, comprise output shaft, motor, it is characterized in that: the clutch spring has been installed in the output shaft, fix by straight pin, and connect an output shaft shaft coupling, motor adopts permanent magnet DC motor, and the output of motor is fixedly connected with motor coupler, and the output shaft shaft coupling cooperates formation one clutch with motor coupler.

2. a kind of hand electric cutting machine shaft coupling transmission device according to claim 1, it is characterized in that: the shaft coupling place has increased turbofan.