CN2186631Y - Self-sucking plate sand polisher - Google Patents

Abstract

The utility model relates to an electric sand polisher, particularly a self-sucking type flat plate sand polisher. The sweeping device of the existing flat plate sand polisher with a self-locking switch is modified into an automatic sweeping device by the electric sand polisher; meanwhile, the power of a motor is increased. A work bottom plate is changed into being made from a metal material, and a shock resistant support post is arranged between a machine shell and the work bottom plate. The self-sucking type flat plate sand polisher not only has the advantages of quick polishing and quick dust suction, but also has the function of dust self suction; meanwhile, the self-sucking type flat plate sand polisher also has the advantages of large power, low noise, high intensity, long life, easy maintenance, etc. The self-sucking type flat plate sand polisher is suitable for being used under various sand polishing environment.

Description

Self-sucking plate sand polisher

The utility model relates to a kind of electric sander, particularly a kind of self-priming dull and stereotyped sander.

The utility model is the applicant proposes " the dull and stereotyped sander of band self-lock switch " patent application (92218521.2) on August 15th, 1992 continuation and development.

Though the dull and stereotyped sander of existing band self-lock switch formula has startup and shutdown flexible, the casing tightness is good, fast dust-removing under extraneous vacuum cleaner booster action, and can reduce around the sander and advantage such as inner dust residual quantity, but also have following problem: (1) power of motor is little, inefficiency; (2) necessary and outside its dust suction effect of vacuum cleaner auxiliary work competence exertion of existing sander brings many inconvenience to operating process like this; (3) needle bearing of adapted on oiliness bearing before and after the series excitation type motor and the working plate, under the high speed operation condition, frictional force is big, and quick abrasion is so its life-span is low; (4) material of working plate and support is an ABS plastic, and its intensity is low, can not bear bigger power and continuous operation for a long time, otherwise damage easily; (5) though the dedusting fan blade is arranged, the inside and outside working environment of sander is not isolated, so its inner dust residual quantity is still bigger, these have all influenced the service life of complete machine.

The purpose of this utility model is for overcoming existing technical disadvantages, and provide a kind of self-priming dull and stereotyped sander, it has not only kept the advantage of prior art but also has had the function of automatic suction dust, it is big to have power simultaneously, noise is low, the intensity height, advantages such as life-span length, it is adapted at using under the various sanding environment.

Self-priming dull and stereotyped sander according to the utility model making, it comprises the casing of being with handle, front-end bearing pedestal, rear bearing block, the series excitation type motor, cooling fan blade, the dust suction fan blade, the sweep-up pipe that has air suction opening, bearing of motor, the working plate bearing, the working plate of belt supporting frame, foam-rubber cushion, sand paper, self-locking power switch and casing holding screw, it is characterized in that on the motor reel bearing, being provided with " O " type space washer, motor bearings and working plate bearing are ball bearing, a bearing insert is set on front-end bearing pedestal, between working plate and casing, a dust suction cover plate is set, have on the sweep-up pipe of air suction opening and connect storage dirt bag by " O " RunddichtringO, working plate is made by metal material, be provided with shock-resistant pillar between working plate and the casing, at series excitation type motor main shaft front end a dynamic balancing eccentric block is set, this dynamic balancing eccentric block is assembled together with the working plate bearing, and is fixed by series excitation type motor main shaft front end nut.The utility model series excitation type power of electric motor is 220～300W, and working plate is made by aluminium alloy or Cu alloy material, and shock-resistant pillar is made by elastomeric material.Operation principle of the present utility model be when the utility model with after power supply is connected, operator's one hand is held the casing handle and is promptly entered the preparation state, because the resilience release knob of self-lock switch is arranged on casing handle bottom, the operator only need utilize grip that one hand refers to carry on gently, the resilience release knob can enter duty so that the utility model is connected power supply, because the dust suction cover plate is arranged on casing inside is separated with the operate outside environment, in good air channel of the inner formation of casing, when series excitation type motor drives dust suction fan blade runs up, the dust that the attraction that the dust suction fan blade produces is enough to produce when this machine work is drained into by the sweep-up pipe that has air suction opening and stores up in the dirt bag, the series excitation type motor main shaft that runs up drives the working plate that shock-resistant pillar is housed by the dynamic balancing eccentric block, make reciprocally swinging stably, to reach the purpose of workpiece sanding.

The utility model compared with prior art its remarkable advantage is: (1) series excitation type motor power (output) is big, high efficiency.(2) owing to have self-priming apparatus, make the not residual dust in the utility model sander inside, saved outside supporting vacuum cleaner simultaneously, easy to operate.(3), and be provided with bearing insert being provided with on the antero posterior axis bearing on " O " type space washer and the fore bearing owing to adopted ball bearing, when making the work of this machine running steadily, noise is low, and maintaining is easy, expense is low.(4) owing to adopted aluminium alloy working plate and shock-resistant pillar, make complete machine intensity big, the life-span is long.The utility model can adapt to various working environments, satisfies the needs of various different sanding workpiece, and obtains satisfied result of use.

Concrete structure of the present utility model is provided by drawings and Examples.

Accompanying drawing is the structural representation according to the self-priming dull and stereotyped sander of utility model proposition.

Below in conjunction with accompanying drawing the utility model is described in further detail.

In conjunction with the accompanying drawings, the utility model mainly is by power line 1, power line protecting pipe 2, tapping screw 3, power line pressure strip 4, self-locking power switch 5, casing 6, series excitation type motor 7, ball bearing 8, " O " type space washer 9, bearing insert 10, cooling fan blade 11, dust suction fan blade 12, shock-resistant pillar 13, rubber paper 14, working plate 15, liner 16, dynamic balancing eccentric block 17, nut 18, dust suction cover plate 19, screw 20, tapping screw 21, the sweep-up pipe 22 that has air suction opening, " O " RunddichtringO 23, storage dirt bag retainer 24 and storage dirt bag 25 are formed.The performance requirement of power line 1 of the present utility model, power line protecting pipe 2, tapping screw 3, power line pressure strip 4, self-locking power switch 5, cooling fan blade 11, dust suction fan blade 12, assembling mode require identical with prior art.Bearing insert 10 of the present utility model adopts the RPP material to make, the electrical power of series excitation type motor 7 is 220～300W, usually it is good selecting 250W for use, it is by ball bearing 8 and bearing insert 10, " O " type space washer 9 is positioned in the casing 6, the sweep-up pipe 22 that has air suction opening is assemblied on the casing 6 by tapping screw, the storage dirt bag retainer 24 that has storage dirt bag 25 is assemblied on the sweep-up pipe 22 by " O " RunddichtringO 23, working plate 15 and dust suction cover plate 19 are assemblied on the casing by tapping screw 21, working plate 15 and dust suction cover plate 19 are made by aluminum alloy materials, be provided with shock-resistant pillar 13 between working plate 15 and the casing 6, this shock-resistant pillar 13 is made by elastomeric material, ball bearing 8 is assemblied on the bearing block of working plate 15, load onto dynamic balancing eccentric block 17 and fastening with nut 18 at series excitation type motor 7 front ends, rubber paper 14 and liner 16 1 are reinstated screw 20 and are fixed on the working plate 15.When the utility model adapted external power source can be realized the utility model purpose ideally.

Claims (5)

1, a kind of self-priming dull and stereotyped sander, it comprises the casing of being with handle, front-end bearing pedestal, rear bearing block, the series excitation type motor, cooling fan blade, the dust suction fan blade, the sweep-up pipe that has air suction opening, motor bearings, the working plate bearing, working plate, foam-rubber cushion, sand paper, self-locking power switch and casing holding screw, it is characterized in that being provided with on the motor shaft bearing " O " type space washer, motor bearings and working plate bearing are ball bearing, a bearing insert is set on front-end bearing pedestal, a dust-catching board is set between working plate and casing, have a storage dirt bag is set on the sweep-up pipe of air suction opening, working plate is made by metal material, be provided with shock-resistant pillar between working plate and the casing, front end at electric machine main shaft is provided with a dynamic balancing eccentric block, and this eccentric block is fixed by the nut that is contained in front-end of spindle.

2, require described sander according to right 1, it is characterized in that working plate made by aluminum alloy materials or Cu alloy material.

3, sander according to claim 1 and 2 is characterized in that shock-resistant pillar made by elastomeric material.

4, sander according to claim 1 and 2, the electrical power that it is characterized in that the series excitation type motor is 220～300W.

5, sander according to claim 3, the electrical power that it is characterized in that the series excitation type motor is 220～300W.