CN201086223Y

CN201086223Y - Portable electric polishing machine

Info

Publication number: CN201086223Y
Application number: CNU2007201838859U
Authority: CN
Inventors: 倪杰峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-30
Filing date: 2007-09-30
Publication date: 2008-07-16
Anticipated expiration: 2017-09-30

Abstract

The utility model belongs to wall polishing mechanical equipment and particularly relates to a portable electric polishing machine. The portable electric polishing machine comprises a motor and a motor housing thereof, a grinding disk connected with the motor, a dustproof cover arranged on the bottom of the motor housing through screws, and a chassis having the built-in grinding disk and arranged in the dustproof cover. The dustproof cover is connected with the chassis as a whole through bolts to improve the reliability, and has convenient usage without the need of adjustment and arrangement before use. The dustproof cover can change the magnitude of an air inlet by adjusting a knob, thus adjusting the dust collection amount to adapt to different working environments. A motor shaft is fixedly connected with the grinding disk through two-stage gear reduction to prevent dust from invading into the motor, thus increasing torsion moment of the grinding disk, increasing rotation force and preventing motor from being damaged. The utility model has the advantages of simple structure, convenient operation, improved polishing efficiency, and more reliable performance.

Description

A kind of portable electric sanding machine

Technical field:

The utility model relates to a kind of portable electric sanding machine, is particularly suitable for the polishing of metope or floor surface.

Background technology:

China Patent No. is 03201863.0 to have announced a kind of hand held, electric sanding machine, open day is on December 17th, 2003, this product comprises motor, be connected in the mill on the output shaft of motor, and the cross bar that is connected of three or more ends and motor, also be connected with leg on the described cross bar, described leg and cross bar have certain angle, the tie point that is connected with cross bar on the described leg is movably, be that leg is scalable being connected on the cross bar, and on the side face that end face that each cross bar surrounds and each leg surround, being equipped with dust cover, the dust cover of side face is that cloth is made.There is following shortcoming in above-mentioned sanding machine: 1, the supporting mechanism poor stability of leg and cross bar composition needs before the use to adjust accordingly and arrange, troublesome poeration; 2, dust cover occurs being scattered after the long-term use of vibrational state, and particularly the dust cover of cloth is damaged easily; 3, the output of motor directly is connected with mill, and the rotating torque of mill is little, and mill deceleration or stop operating when running into the metope lump causes motor to burn out.

The utility model content:

That the purpose of this utility model provides is simple in structure, easy to use, a kind of portable electric sanding machine of polishing efficient height, dependable performance.

Scheme of the present utility model: comprise motor and motor casing, motor is connected with mill, and dust cover is installed on the motor casing bottom by screw, and the chassis of built-in mill is installed in the dust cover.

Dust cover is the bowl-shape shape that Open Side Down, and the top is shaped on three grades of stairstepping pits, and sidewall has places the air inlet of adjusting knob, the top is provided with the dust suction interface that is connected with dust catcher, chassis side wall is shaped on a plurality of ports, and the base is shaped on enclosure upwards, and the dust cover bottom is placed in this enclosure outside.Bolt upwards runs through chassis, dust cover, and is connected with nut, and bolt is with spring, both ends of the spring respectively with wear the touching of chassis, dust cover end face.One-level tooth axle and secondary tooth axle are positioned in the dust cover pit, secondary tooth axle middle part is overlapped tooth axle and bearing admittedly, one-level tooth axle top and motor shaft are connected, the gears engaged of bottom and secondary tooth axle, the bearing of secondary tooth axle is placed in the pit pit, and the rotating shaft that dust cover, chassis and mill are passed in the bottom is connected.

Adjusting knob axially is shaped on through hole, and the inner has breach.The motor casing outer wall is provided with handle, and power switch is equipped with in the handle below, power switch control motor and external dust catcher power supply.

The utility model has the advantages that: dust cover and chassis fuse by bolt, and reliability increases, and need not before the use to adjust and arrange, and be easy to use; Dust cover changes the air inlet size by adjusting knob, thereby adjusts the dust suction amount, can adapt to different working environments; Motor shaft is connected by two-stage gear reduction and mill, and dust can't enter motor, and it is big that the moment of torsion of mill becomes, and rotatory force is big, and motor is not fragile.Said structure is simple, easy to operate, polishing efficient improves, performance is more reliable.

Description of drawings:

Fig. 1 is the utility model stereogram.

Fig. 2 is the utility model bottom cutaway view.

Fig. 3 is the utility model installation diagram.

The specific embodiment:

With reference to Fig. 1, the motor of present embodiment is installed in the motor casing 1, motor casing 1 outer wall is provided with handle 14, power switch 15 is equipped with in handle 14 belows, external cord is connected by power switch 15 back and motor, external dust catcher, and this power switch 15 can be controlled power supply of the present utility model and reach the dust catcher power supply that is connected with the utility model.

With reference to Fig. 2 to Fig. 3, dust cover 4 is a bowl-shape shape and Open Side Down is provided with, and the top is shaped on three grades of stepped pits 4.2, and pit 4.2 bottoms are shaped on through hole, and dust cover 4 end faces also are provided with the dust suction interface 9 that is connected with dust catcher, and sidewall is shaped on air inlet 4.1.Motor casing 1 bottom is installed on going up of dust cover pit 4.2 by screw 12 and cheats, and increases both steadiness.Motor shaft and one-level tooth axle 2 tops are connected, secondary tooth axle 3 middle parts are installed with gear and bearing, the gear reduction engagement of the bottom of one-level tooth axle 2 and secondary tooth axle 3, two engagement positions are positioned over the middle hole of pit 4.2, described bearing is positioned over the pit of pit 4.2, and secondary tooth axle 3 bottoms are run through the through hole of pit 4.2 and penetrated chassis 5 and are connected with the turning cylinder of mill 6.Mill 6 slows down with motor shaft by two-stage tooth axle and is connected, and the driving force of mill 6 increases, and can satisfy the bigger coarse metope of hardness; Bearing through secondary tooth axle 3 connects, and the sealing of motor is better, and dust can't enter motor, improves the service life of motor.Adjusting knob 10 axially is shaped on through hole 10.1, and the inner has breach 10.2, and inserts in the air inlet 4.1, rotates the intake that adjusting knob 10 can be controlled air inlet 4.1, and the suction of dust suction interface 9 is changed, and adapts to the working environment of different amount of dust.

Chassis 5 is installed on the inside of dust cover 4, and bolt 11 is upward through chassis 5 end faces, dust cover 4 end faces are connected with nut 8, and spring 13 is placed in bolt 11, and spring 13 two ends are touched with the upper surface on chassis 5, the bottom surface of dust cover 4 respectively.Chassis 5 sidewalls are shaped on a plurality of ports 5.1, and the base is shaped on enclosure 5.2 upwards, and dust cover 4 bottoms are placed in this enclosure 5.2 outsides.Sand paper 7 is posted in mill 6 bottom surfaces in the chassis 5, and sand paper 7 is conveniently replaced.About nut 8 adjustable chassis 5, horizontal level, make chassis 5 and mill 6 bottom surfaces remain on correct position.

Operation principle: press power switch 15, motor-driven mill 6 rotates, also start working with the dust catcher that the dust suction interface is connected, the whole metope of sand paper 7 mills of mill 6 bottoms, produce more dust, because the effect of dust catcher, the dust in the mill 6 enters in the dust cover 4 by chassis port 5.1, sucks dust catcher from the dust suction interface again.Adjusting knob 10 can be controlled the intake of air inlet, changes the soakage of dust.

Above-mentioned dust cover 4 and chassis 5 can be made by nylon or plastics, and be easy to make, and assembling is simplified, and cost reduces, and steadiness is good, and improve service life.This product structure is simple, easy to operate, polishing efficient improves, performance is more reliable.

Claims

1. a portable electric sanding machine comprises motor and motor casing (1), and motor is connected with mill (6), it is characterized in that dust cover (4) is installed on motor casing (1) bottom by screw (12), and the chassis (5) of built-in mill (6) is installed in the dust cover (4).

2. a kind of portable electric sanding machine according to claim 1, it is characterized in that dust cover (4) is the bowl-shape shape that Open Side Down, the top is shaped on three grades of stairstepping pits (4.2), sidewall has places the air inlet (4.1) of adjusting knob (10), the top is provided with the dust suction interface (9) that is connected with dust catcher, chassis (5) sidewall is shaped on a plurality of ports (5.1), and the base is shaped on enclosure (5.2) upwards, and dust cover (4) bottom is placed in this enclosure (5.2) outside.

3. a kind of portable electric sanding machine according to claim 2, it is characterized in that bolt (11) upwards runs through chassis (5), dust cover (4), and be connected with nut (8), bolt (11) is with spring (13), spring (13) two ends respectively with wear the touching of chassis (5), dust cover (4) end face.

4. according to claim 2 or 3 described a kind of portable electric sanding machines, it is characterized in that one-level tooth axle (2) and secondary tooth axle (3) are positioned in the dust cover pit (4.2), secondary tooth axle (3) middle part is overlapped tooth axle and bearing admittedly, one-level tooth axle (2) top and motor shaft are connected, the gears engaged of bottom and secondary tooth axle (3), the bearing of secondary tooth axle (3) is placed in pit (4.2) pit, and dust cover (4) is passed in the bottom, chassis (5) are connected with the rotating shaft of mill (6).

5. a kind of portable electric sanding machine according to claim 2 is characterized in that adjusting knob (10) axially is shaped on through hole (10.1), and the inner has breach (10.2).

6. a kind of portable electric sanding machine according to claim 2 is characterized in that motor casing (1) outer wall is provided with handle (14), and power switch (15) is equipped with in handle (14) below, power switch (15) control motor and external dust catcher power supply.