CN102361366A

CN102361366A - Three-end-ring rectangular braking motor

Info

Publication number: CN102361366A
Application number: CN2011103286079A
Authority: CN
Inventors: 曹洧種
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-26
Filing date: 2011-10-26
Publication date: 2012-02-22

Abstract

The invention relates to a three-end-ring rectangular braking motor, which comprises a shell (1) and a revolving shaft (2), wherein a stator (3) is fixed on the inner wall of the shell (1); and the revolving shaft (2) is provided with a rotor (4). The motor is characterized in that: the rotor (4) consists of a first left rectangular body (41) and a second right rectangular body (42); the left end of the first rectangular body (41) is provided with a first end ring (411); the left end of the second rectangular body (42) is provided with a second end ring (421); the right end of the second rectangular body (42) is provided with a third end ring (422); and the right end of the rotor (4) is connected with a brake (6) through a spring (5). In the invention, the brake is arranged inside the shell, so that the axial length is shortened, and no redundant electric wire is exposed outside; and the motor has the advantages of compact structure, simple control circuit, braking safety and reliability, and convenience for maintaining.

Description

Three end ring rectangle braking motors

Technical field

The present invention relates to a kind of braking motor, relate in particular to a kind of compact conformation, control circuit is simple, brake safe is reliable and easy to maintenance three end ring rectangle braking motors, belong to the braking motor technical field.

Background technology

Braking motor is widely used in various requirement to be stopped in the plant equipment and transmission device with accurate location fast.Braking motor is widely used in metal working machine tool, package packing machine, woodworking machinery, food machinery, chemical machinery, textile machine, building machinery and gear reduction unit etc.

The direct current disc brake of traditional braking motor is installed on the end cap of motor non-shaft stretching end.When braking motor access power supply, braking motor is also worked simultaneously.Because the electromagnetic attraction effect, electromagnet attracts armature and compresses spring, and brake disc is thrown off in the armature end cap, the braking motor entry into service.When cutting off the electricity supply, the braking motor electromagnet loses magnetic attraction, and spring promotes armature and compresses brake disc, and under the moment of friction effect, braking motor shuts down immediately.

This braking motor has following shortcoming because motor separates with brake:

1, the entire length of axle is longer, and rigidity is relatively poor, and the brake safe reliability is lower, and useful life is shorter;

2, terminal box generally is mounted in the motor housing surface, through the brake electric wire connection terminal box and the electromagnet of an outside, and the exposed externally unprotect of brake electric wire, and the complicated damage easily of control circuit;

3, the direct current disc brake comprises electromagnet, armature and spring, and complex structure is fragile, needs often to safeguard.

So seek a kind of compact conformation, control circuit is simple, brake safe is reliable and easy to maintenance braking motor.

Summary of the invention

The objective of the invention is to overcome above-mentioned deficiency, a kind of compact conformation, control circuit is simple, brake safe is reliable and easy to maintenance three end ring rectangle braking motors are provided.

The objective of the invention is to realize like this: a kind of three end ring rectangle braking motors, comprise casing and rotating shaft, the left end of said rotating shaft passes the bearing pedestal of casing left end cap; The right-hand member of said rotating shaft is located on the bearing pedestal of casing right end cap; Said casing inner wall is fixed with a stator, and said rotating shaft is provided with a rotor, and said rotor is positioned at the inner chamber of stator; It is characterized in that the integral structure that said rotor is made up of second cuboid on first cuboid on the left side and the right; The left end of said first cuboid is provided with first end ring, and the left end of said second cuboid is provided with second end ring, and the right-hand member of said second cuboid is provided with the 3rd end ring; The right-hand member of said rotor is connected with brake through spring, and the right-hand member of said brake is close to right end cap;

Said first end ring is located at the outer ring of the first cuboid left end, and said second end ring is located at the outer ring of the second cuboid left end, and said the 3rd end ring is located at the inner ring of the second cuboid right-hand member;

When braking moment requires when high; The part that said brake contacts with rotor is made by soft magnetic material; The part that said brake contacts with right end cap is made with high strength carbon element steel alloy, and two parts are welded as a whole and make brake, and the face of brake and right end cap cooperation is the conical surface.

Compared with prior art, the invention has the beneficial effects as follows:

The present invention is because brake is located at interior; And brake and rotor be integrally formed structure, make axial length shorten, and do not have unnecessary electric wire exposed externally; Security performance improves, and has compact conformation, control circuit is simple, brake safe is reliable and easy to maintenance advantage.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Wherein:

Casing 1

Left end cap 11

Right end cap 12

Rotating shaft 2

Stator 3

Rotor 4

First cuboid 41

First end ring 411

Second cuboid 42

Second end ring 421

The 3rd end ring 422

Spring 5

Brake 6.

Embodiment

Referring to Fig. 1, a kind of three end ring rectangle braking motors that the present invention relates to comprise casing 1 and rotating shaft 2; The left end of said rotating shaft 2 passes the bearing pedestal of casing left end cap 11, and the right-hand member of said rotating shaft 2 is located on the bearing pedestal of casing right end cap 12, and said casing 1 inwall is fixed with a stator 3; Said rotating shaft 2 is provided with a rotor 4; Said rotor 4 is positioned at the inner chamber of stator 3, the integral structure that said rotor 4 is made up of second cuboid 42 on first cuboid 41 on the left side and the right, and the outer ring of said first cuboid, 41 left ends is provided with first end ring 411; The outer ring of said second cuboid, 42 left ends is provided with second end ring 421; The inner ring of said second cuboid, 42 right-hand members is provided with the 3rd end ring 422, and the right-hand member of said rotor 4 is connected with brake 6 through spring 5, and the right-hand member of said brake 6 is close to right end cap 12.When braking moment was less demanding, said brake 6 usefulness integral casting steel parts were made, and brake 6 is the plane with the face that right end cap 12 cooperates; When braking moment requires when high; Said brake 6 is made by soft magnetic material with the part that rotor 4 contacts; The part that said brake 6 contacts with right end cap 12 is made with high strength carbon element steel alloy, and two parts are welded as a whole and make brake 6, and brake 6 is the conical surface with the face that right end cap 12 cooperates.

During energising, not only produce electromagnetic torque between second end ring 421 and the 3rd end ring 422, participate in motor rotation running; Also form magnetic field between second end ring 421 and the 3rd end ring 422 simultaneously; Make the axial magnetic pull of generation between second cuboid 42 and the brake 6, force brake 6 to produce axial displacement left, compression spring 5; Final rotor 4 rotates with brake 6, the motor running; When outage, the magnetic field between second end ring 421 and the 3rd end ring 422 disappears, and brake 6 is flicked off to the right by spring 5 again, and the right-hand member of brake 6 contacts with right end cap 12, makes motor be in on-position.

Claims

1. end ring rectangle braking motor; Comprise casing (1) and rotating shaft (2); The left end of said rotating shaft (2) passes the bearing pedestal of casing left end cap (11), and the right-hand member of said rotating shaft (2) is located on the bearing pedestal of casing right end cap (12), and said casing (1) inwall is fixed with a stator (3); Said rotating shaft (2) is provided with a rotor (4); Said rotor (4) is positioned at the inner chamber of stator (3), it is characterized in that the integral structure that said rotor (4) is made up of second cuboid (42) on first cuboid (41) on the left side and the right, and the left end of said first cuboid (41) is provided with first end ring (411); The left end of said second cuboid (42) is provided with second end ring (421); The right-hand member of said second cuboid (42) is provided with the 3rd end ring (422), and the right-hand member of said rotor (4) is connected with brake (6) through spring (5), and the right-hand member of said brake (6) is close to right end cap (12).

2. a kind of three end ring rectangle braking motors according to claim 1; It is characterized in that said first end ring (411) is located at the outer ring of first cuboid (41) left end; Said second end ring (421) is located at the outer ring of second cuboid (42) left end, and said the 3rd end ring (422) is located at the inner ring of second cuboid (42) right-hand member.

3. a kind of three end ring rectangle braking motors according to claim 1 is characterized in that the face that said brake (6) and right end cap (12) cooperate is the plane.

4. according to claim 1 or 3 described a kind of three end ring rectangle braking motors, it is characterized in that said brake (6) makes with the integral casting steel part.

5. a kind of three end ring rectangle braking motors according to claim 1 is characterized in that the face that said brake (6) and right end cap (12) cooperate is the conical surface.

6. according to claim 1 or 5 described a kind of three end ring rectangle braking motors; It is characterized in that said brake (6) made by soft magnetic material with the part that rotor (4) contacts; The part that said brake (6) contacts with right end cap (12) is made with high strength carbon element steel alloy, and two parts are welded as a whole and make brake (6).