CN215762915U

CN215762915U - Low-noise electromagnetic brake

Info

Publication number: CN215762915U
Application number: CN202121779997.7U
Authority: CN
Inventors: 刘彦虎; 宋建州
Original assignee: Kunshan Security Control Development Equipment Co ltd
Current assignee: Kunshan Security Control Development Equipment Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-02-08
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a low-noise electromagnetic brake, relates to the technical field of electromagnetic brakes, and aims to solve the problem that when an existing electromagnetic brake is used for braking, an armature and a friction disc are in contact with each other, so that the noise is high, and the problem that the use environment is adversely affected is solved. The utility model discloses a brake shoe, including brake lagging, flange connection pad, spring holder and spring positioning groove, the brake lagging sets up the front end at the magnetic yoke, the flange connection pad is installed to the rear end of magnetic yoke, the internally mounted of magnetic yoke has solenoid, the outside all is provided with the spring positioning groove all around of solenoid, and the spring positioning groove is provided with four, the internally mounted of spring positioning groove has brake spring, the inner wall fixed connection of spring holder and spring positioning groove is passed through to brake spring's one end, solenoid's front end is provided with the armature piece, and the outer wall of armature piece and brake spring's other end fixed connection, the key cover is installed to the intermediate position department of brake lagging, the internally mounted of brake lagging has graphite cast iron friction disk, the inner wall of brake lagging all is provided with soundproof cotton all around.

Description

Low-noise electromagnetic brake

Technical Field

The utility model relates to the technical field of electromagnetic brakes, in particular to a low-noise electromagnetic brake.

Background

The electromagnetic brake is a connector for transmitting the torque force of the driving side to the driven side, can be freely combined, separated or braked according to requirements, and has the advantages of compact structure, simplicity in operation, sensitivity in response, long service life, reliability in use, easiness in realizing remote control and the like. The automatic actuator is an ideal automatic actuator in modern industry and mainly plays roles in transmitting power, controlling motion and the like in a mechanical transmission system.

However, when the existing electromagnetic brake brakes, the armature and the friction disc are in contact with each other, so that the noise is large, and the adverse effect is caused on the use environment; we have therefore proposed a low noise electromagnetic brake in order to solve the problems set out above.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a low-noise electromagnetic brake, which solves the problem that the existing electromagnetic brake proposed in the background art has high contact noise between an armature and a friction disc during braking, so that the use environment is adversely affected.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a low noise electromagnetic brake, includes magnetic yoke and braking lagging, the braking lagging sets up the front end at the magnetic yoke, flange connection dish is installed to the rear end of magnetic yoke, the internally mounted of magnetic yoke has solenoid, solenoid outside all is provided with the spring positioning groove all around, and the spring positioning groove is provided with four, the internally mounted of spring positioning groove has brake spring, the inner wall fixed connection of spring holder and spring positioning groove is passed through to brake spring's one end, solenoid's front end is provided with the armature piece, and the outer wall of armature piece and brake spring's other end fixed connection, the key cover is installed to the intermediate position department of braking lagging, the internally mounted of braking lagging has graphite cast iron friction disc, the inner wall of braking lagging all is provided with soundproof cotton all around.

Preferably, the inner parts of the periphery of the flange connecting disc are provided with mounting through holes, and the flange connecting disc is connected with the base through the mounting through holes and bolts.

Preferably, the outer wall of the electromagnetic coil is provided with a terminal, and the terminal extends to the outside of the yoke.

Preferably, a guide rod is installed inside the braking spring, and one end of the guide rod is fixedly connected with the spring seat.

Preferably, the outer wall of the graphite cast iron friction disc is provided with anti-slip lines, and the anti-slip lines and the graphite cast iron friction disc are integrally formed.

Preferably, screw holes are formed in the graphite cast iron friction disc and the brake sleeve plate, and the graphite cast iron friction disc and the screw holes of the brake sleeve plate are in threaded connection through screws.

Preferably, the brake sleeve plate is connected with the transmission shaft key through a key sleeve.

Compared with the prior art, the utility model has the beneficial effects that:

1. the brake adopts the sleeve plate structure to bear the graphite cast iron friction disc, the armature plate and the brake sleeve plate are of a coating structure during braking, the sound insulation cotton on the inner side of the sleeve plate can greatly reduce the sound generated during friction, and the braking speed can be accelerated by means of side friction, so that the problem that the contact noise of the armature and the friction disc is larger during braking of the conventional electromagnetic brake, and the adverse effect is caused to the use environment is solved.

2. Through set up four groups of brake spring connection armature pieces in the magnetic yoke, and brake spring's inside is provided with the guide bar, when solenoid in the magnetic yoke was the outage state, the armature piece on the magnetic yoke can pop out under brake spring's effect, with braking lagging block, and rely on the friction action stop of armature piece and graphite cast iron friction disk in the braking lagging, reach the effect of braking, set up the guide bar in the inside of every group spring, can guide the flexible direction of spring, the skew takes place when avoiding the armature piece to stretch out and draw back, the braking precision has been improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged view of a portion of the present invention at A;

in the figure: 1. a flange connecting plate; 2. mounting a through hole; 3. a yoke; 4. a brake shoe plate; 5. a screw hole; 6. a screw; 7. a key sleeve; 8. an electromagnetic coil; 9. a terminal; 10. a spring positioning slot; 11. a brake spring; 12. an armature plate; 13. a graphite cast iron friction disk; 14. anti-skid lines; 15. a spring seat; 16. a guide bar; 17. soundproof cotton.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, an embodiment of the present invention is shown: the utility model provides a low noise electromagnetic brake, including magnetic yoke 3 and braking lagging 4, braking lagging 4 sets up the front end at magnetic yoke 3, flange connection dish 1 is installed to magnetic yoke 3's rear end, the internally mounted of magnetic yoke 3 has solenoid 8, solenoid 8 outside all is provided with spring positioning groove 10 all around, and spring positioning groove 10 is provided with four, the internally mounted of spring positioning groove 10 has brake spring 11, the inner wall fixed connection of spring holder 15 and spring positioning groove 10 is passed through to brake spring 11's one end, solenoid 8's front end is provided with armature plate 12, and the outer wall of armature plate 12 and brake spring 11's other end fixed connection, key cover 7 is installed to the intermediate position department of braking lagging 4, the internally mounted of braking lagging 4 has graphite cast iron friction disk 13, the inner wall of braking lagging 4 all is provided with soundproof cotton 17 all around.

Further, flange connection pad 1 inside all around all is provided with installation through-hole 2, and flange connection pad 1 is connected with the frame through installation through-hole 2 and bolt, and the yoke 3 part of stopper adopts flange joint's mode fixed with the frame, and the dismouting is convenient.

Further, be provided with wiring end 9 on solenoid 8's the outer wall, and wiring end 9 extends to the outside of yoke 3, and wiring end 9 is connected with external power supply, can rely on solenoid 8 to supply the outage, realizes the control to the stopper.

Further, the internally mounted of brake spring 11 has guide bar 16, and the one end and the spring holder 15 fixed connection of guide bar 16, and guide bar 16 can guide brake spring 11 flexible, takes place the skew when avoiding armature plate 12 to pop out for braking process is more swift accurate.

Further, be provided with anti-skidding line 14 on the outer wall of graphite cast iron friction disc 13, and anti-skidding line 14 sets up with graphite cast iron friction disc 13 integrated into one piece, and anti-skidding line 14 can increase the frictional force between graphite cast iron friction disc 13 and armature plate 12 for the braking is high efficiency more.

Further, the graphite cast iron friction disc 13 and the brake sleeve plate 4 are internally provided with screw holes 5, the graphite cast iron friction disc 13 is in threaded connection with the screw holes 5 of the brake sleeve plate 4 through screws 6, and the graphite cast iron friction disc 13 is of a detachable structure and is convenient to replace after being excessively worn.

Furthermore, the braking sleeve plate 4 is connected with the transmission shaft key through the key sleeve 7, and the transmission shaft is conveniently braked through the matching between the braking sleeve plate 4 and the magnetic yoke 3.

The working principle is as follows: when the brake is used, firstly, the magnetic yoke 3 of the brake is installed in a machine base by means of the flange connection plate 1 and the bolt, the center height of the magnetic yoke 3 is enabled to be flush with a transmission shaft, then, the brake sleeve plate 4 of the brake is connected with the tail end of the transmission shaft in a key way by means of the key sleeve 7, the front end of the magnetic yoke 3 is provided with an armature sheet 12, the armature sheet 12 is connected with the magnetic yoke 3 through four groups of brake springs 11, in the rotating process of the transmission shaft, if the electromagnetic coil 8 in the magnetic yoke 3 is in a power-on state, the armature sheet 12 at the front end of the magnetic yoke 3 is adsorbed by the electromagnetic coil 8 and cannot influence the rotation of the transmission shaft, if the electromagnetic coil 8 in the magnetic yoke 3 is in a power-off state, the armature sheet 12 at the front end of the magnetic yoke 3 can be popped out under the action of the brake springs 11 and is clamped with the brake sleeve plate 4, and the brake is stopped by means of the friction action of the armature sheet 12 and a graphite cast iron friction disk 13 in the brake sleeve plate 4, so as to achieve the brake effect, and the armature plate 12 and the braking sleeve plate 4 are in a coating structure when braking, and the soundproof cotton 17 on the inner side of the sleeve plate can greatly reduce the sound generated during friction, thereby effectively reducing the braking noise.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A low noise electromagnetic brake, includes yoke (3) and braking lagging (4), its characterized in that: brake lagging (4) sets up the front end at magnetic yoke (3), flange connection dish (1) is installed to the rear end of magnetic yoke (3), the internally mounted of magnetic yoke (3) has solenoid (8), all be provided with spring positioning groove (10) around solenoid (8) outside, and spring positioning groove (10) are provided with four, the internally mounted of spring positioning groove (10) has brake spring (11), the inner wall fixed connection of spring holder (15) and spring positioning groove (10) is passed through to the one end of brake spring (11), the front end of solenoid (8) is provided with armature plate (12), and the outer wall of armature plate (12) and the other end fixed connection of brake spring (11), key cover (7) are installed to the intermediate position department of brake lagging (4), the internally mounted of brake lagging (4) has graphite cast iron friction disk (13), soundproof cotton (17) are arranged on the periphery of the inner wall of the brake sleeve plate (4).

2. A low noise electromagnetic brake as defined in claim 1, wherein: the flange connection pad (1) is all provided with installation through-hole (2) in inside all around, and flange connection pad (1) is connected with the frame through installation through-hole (2) and bolt.

3. A low noise electromagnetic brake as defined in claim 1, wherein: and a wiring terminal (9) is arranged on the outer wall of the electromagnetic coil (8), and the wiring terminal (9) extends to the outside of the yoke (3).

4. A low noise electromagnetic brake as defined in claim 1, wherein: a guide rod (16) is installed inside the brake spring (11), and one end of the guide rod (16) is fixedly connected with the spring seat (15).

5. A low noise electromagnetic brake as defined in claim 1, wherein: the anti-skidding structure is characterized in that anti-skidding lines (14) are arranged on the outer wall of the graphite cast iron friction disc (13), and the anti-skidding lines (14) and the graphite cast iron friction disc (13) are integrally formed.

6. A low noise electromagnetic brake as defined in claim 1, wherein: screw holes (5) are formed in the graphite cast iron friction disc (13) and the brake sleeve plate (4), and the graphite cast iron friction disc (13) is in threaded connection with the screw holes (5) of the brake sleeve plate (4) through screws (6).

7. A low noise electromagnetic brake as defined in claim 1, wherein: the brake sleeve plate (4) is connected with the transmission shaft key through a key sleeve (7).