CN2622916Y

CN2622916Y - Brake of tubular dynamo

Info

Publication number: CN2622916Y
Application number: CN 03231887
Authority: CN
Inventors: 孙宜培
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-05
Filing date: 2003-06-05
Publication date: 2004-06-30
Anticipated expiration: 2013-06-05

Abstract

The utility model relates to a brake of tubular dynamo which is arranged in an axle housing of the roller-blind door matching with the rolling motor for application. The utility model is formed by the fitting of a magnet core connected with a spring and a brake disc fixed on the rolling motor axis and having the capacity of brake with a elastic brake disc and installed in the axle housing; an excitation winding is connected with the magnet core, and the excitation winding and the rolling dynamo powers on and off at the same time. When the rolling dynamo powers on and rolls, the excitation winding powers on and generates a magnetic field, and then makes the elastic brake disc be away from the brake disc through suction, finally the rolling dynamo runs normally. If no suction existed after power failure, the elastic brake disc is made to cling with the brake disc through a spring load, and brake is performed immediately. The utility model is characterized in quick braking speed, good braking effect, large suction, high sensibility and long service life; and the utility model is convenient for installation, easy to maintain and transpose for the brake is arranged in the outside of the rolling dynamo.

Description

The brake of tube shaped electric machine

Technical field

The utility model relates to the vitals that uses on a kind of electric rolling door, sunshade, the video screen, is used to guarantee the brake of the rolling screen door motor that it can accurate work.

Background technology

After the rolling screen door motor power cuts off, after its rotor high-speed rotation, because the effect of inertia rotor still can rotate, the phenomenon that the rolling screen door that is pulled up simultaneously can glide because of deadweight, to cause the location inaccurate, reliability and safety in utilization for guaranteeing the rolling screen door self-lock ability need be provided with brake.

The patent No. 01249135.7 " tube shaped electric machine " just provides a kind of brake that is installed in the casing, by the quiet iron of the band conical surface and brake(-holder) block be arranged on rotor on, be with the moving iron of taper hole, spring to cooperate to constitute, because of the difficult control of machining accuracy of the conical surface, taper hole, difficult processing, after operating time is long, the rubber wearing and tearing that the conical surface is close to outward will produce skidding after wearing out, and make braking, brake failure, therefore brake is mounted in the roller shutter rotor again, so maintenance bothers.

Summary of the invention

Technical problem to be solved in the utility model is: the brake that a kind of tube shaped electric machine is provided, be installed in the rolling screen door axle housing and be used with the roller shutter motor, easy processing, easy-maintaining, and difficult generation skidding, and can or stop with the operation of roller shutter motor synchronous, braking is rapid, use is safer, reliable.

The technical scheme in the invention for solving the above technical problem is: the brake of tube shaped electric machine, by being connected with the unshakable in one's determination of spring and being fixed on the roller shutter motor shaft, brake(-holder) block with braking action cooperates with elastic braking plate, and be installed in the axle housing and constitute, also be connected with magnetizing coil on the described iron core, and magnetizing coil and the switching simultaneously of roller shutter motor.

Compared with prior art, advantage of the present utility model is: each design of part of this brake is simple, and shape is single, easily processing, and also increased magnetizing coil on the iron core, highly sensitive so suction is big, braking ability is good.Magnetizing coil and the switching of roller shutter motor synchronous electricity work in addition, braking rapidly, and elastic braking plate always the locating aperture on the holder move, accurate positioning, noise is low, use safer, reliable, long service life.Because of the iron core that is connected with magnetizing coil is installed in outside the roller shutter motor, always be fitted together with the roller shutter motor after can installing separately again, therefore easy for installation, easy-maintaining and part transposing are convenient again.

Description of drawings

Accompanying drawing: structural representation of the present utility model.

Embodiment

Embodiment is further described the utility model below in conjunction with accompanying drawing.

The ring groove that blind hole and band through hole are arranged in the middle of unshakable in one's determination 1 the end face, other holds outer surface that one ring spill location notch and three uniform blind screwholes are arranged.

Elastic braking plate 4 has the circle of uniform three flanges to pull piece for periphery.

The connecting shaft brake(-holder) block 8 outer rubber 5 that are cast with are fixed into whole brake(-holder) block 13.

Holder 10 has shoulder hole, inwall one end that the cylindrical shape that three uniform bar shaped locating apertures 14 are arranged on flange, the outer wall is arranged for middle.

In the middle of spring 3 is placed on unshakable in one's determination 1 in the blind hole, the magnetizing coil 2 of band skeleton is socketed in the ring groove in the middle of unshakable in one's determination 1, for preventing magnetizing coil 2 axial endplays, also is fixed with collar 9 on the iron core 1 of magnetizing coil 2 end faces, constitutes assembly unshakable in one's determination.

Roller shutter motor 6 epitrochanterian bearings, be fixed in the holder 10 1 end through holes with the outer ring, brake(-holder) block 13 is fixed on the rotor axle head of the roller shutter motor 6 in the holder 10 with nut 7 and check washer, the assembly unshakable in one's determination that inserts elastic braking plate 4 again and assemble, flange on the elastic braking plate 4 is embedded in respectively in the opening 14 on the holder 10, location notch on unshakable in one's determination 1 cooperates with the flange on the holder 10, it can not rotated, the brake that fuses with roller shutter motor 6 that will assemble at last, be installed in the rolling screen door axle housing 11, and end a screw 12 with three and be fixed on unshakable in one's determination 1 by opening 14, it can not rotated in axle housing 11.

When 6 energisings of roller shutter motor are rotated, Tong Dian magnetizing coil 2 also produces magnetic field simultaneously, its suction is greater than the elastic force of spring 3, elastic braking plate 4 is moved to the left along holder 10 upper sheds 14, leave brake(-holder) block 13, then roller shutter motor 6 normal operation work, if 6 outages of roller shutter motor quit work, then magnetizing coil 2 also stops energising, no suction, and the spring 3 on the iron core 1 just pushes away elastic braking plate 4 to the right along holder 10 upper sheds 14, be close to brake(-holder) block 13, roller shutter motor 6 braking at once, brake are stopped operating, and retro-speed is fast, good braking effect.

Claims

1, a kind of brake of tube shaped electric machine, by the iron core that is connected with spring (3) (1) and be fixed on roller shutter motor (6) axle, brake(-holder) block (13) with braking action cooperates with elastic braking plate (4), and be installed in the axle housing (11) and constitute, it is characterized in that also being connected with magnetizing coil (2) on the described iron core (1), and magnetizing coil (2) and roller shutter motor (6) switching simultaneously.

2, brake according to claim 1, it is characterized in that the epitrochanterian bearing of roller shutter motor (6) is fixed in holder (10) the one end through holes with the outer ring, brake(-holder) block (3) is fixed on the rotor axle head of the roller shutter motor (6) in the holder (10) with nut (7), check washer.

3, brake according to claim 1 and 2 is characterized in that in the middle of the holder (10) shoulder hole, inwall one end have three uniform bar shaped locating apertures (14) on flange, the outer wall cylindrical shape being arranged.

4, brake according to claim 1 is characterized in that having in the middle of the end face of iron core (1) ring groove of blind hole and band through hole, and other holds outer surface that one ring spill location notch and three uniform blind screwholes are arranged; Spring (3) is placed in the middle blind hole of iron core (1), and the magnetizing coil (2) of band skeleton is socketed in the middle ring groove of iron core (1), also is fixed with collar (9) on the iron core (1) of magnetizing coil (2) end face, constitutes assembly unshakable in one's determination.

5, according to claim 1 or 4 described brakes, it is characterized in that elastic braking plate (4) and assembly unshakable in one's determination put into holder (10), three flanges on the elastic braking plate (4) cooperate with opening (14) on the holder (10), location notch on (1) unshakable in one's determination cooperates with the flange on the holder (10), and with three limit screws (12) by opening (14), iron core (1) is fixed in the axle housing (11).