CN215221940U

CN215221940U - Motor brake for motor brake

Info

Publication number: CN215221940U
Application number: CN202121378138.7U
Authority: CN
Inventors: 沈银伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-12-17
Anticipated expiration: 2031-06-21

Abstract

The utility model discloses a motor brake for motor braking, including motor body and the start-stop key installed on it, and motor body through start-stop key fixedly connected with ac contactor, ac contactor has the motor brake through wire electric connection, and is provided with the external switch that controls the motor brake and open and close on ac contactor, the output shaft of motor body is the pivot, the assembly has the rotary tooth in the pivot, the cover is equipped with the fixing base in the pivot, the fixed mounting has the hydraulic cylinder body on the fixing base, the output end of hydraulic cylinder body fixedly connected with gag lever post; this motor brake for motor braking through the setting of motor band-type brake, can reduce the rotational speed of pivot rapidly, cooperates the hydraulic cylinder body again to make it carry out the joint with the rotatory tooth through the gag lever post removal braking tooth, and then can make the pivot be in stable state instantaneously, has solved the friction disk and the pivot outer wall frictional force is limited and leads to it still to have great rotation inertia's problem in the motor band-type brake of current device.

Description

Motor brake for motor brake

Technical Field

The utility model relates to a motor braking technical field specifically is a motor brake is used in motor braking.

Background

The brake motor is also named as an electromagnetic power-off brake motor and a brake asynchronous motor, and is an asynchronous motor which is totally closed, self-cooling, cage-shaped and additionally provided with a direct-current electromagnet brake. The brake motor has high-precision positioning requirement. The brake motor should include: the brake is rapid, the positioning is accurate, the safety and the reliability are realized, the brake system can be used interchangeably, the structure is simple, the replacement and the maintenance are simple and convenient, and the like. In many factories, a brake motor is needed to control the inertia of the motor, so that the required accurate positioning is achieved, and the automatic work of machinery is realized.

At present, the existing motor brake for motor braking generally adopts a band-type brake mechanism, namely, a rotating shaft tends to be stable by controlling a contact surface and mutual friction between a friction plate on the band-type brake mechanism and a main rotating shaft, so that the rotating inertia of the rotating shaft is reduced, but the existing motor brake still has the condition of larger inertia when braking, and the braking effect is poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a motor brake for motor braking has solved that current motor brake braking effect is limited and still has the rotation inertia problem.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a motor brake for motor braking, includes motor body and installs the key of opening and close on it, and motor body is through opening and close key fixedly connected with ac contactor, ac contactor has motor brake through wire electric connection, and is provided with the external switch that control motor brake opened and close on ac contactor, motor body's output shaft is the pivot, be equipped with the rotary teeth in the pivot, the cover is equipped with the fixing base in the pivot, fixed mounting has hydraulic cylinder body on the fixing base, hydraulic cylinder body's output fixedly connected with gag lever post, and be provided with the braking tooth on the gag lever post.

Preferably, the external switch is provided with two switch keys for respectively controlling the motor brake and the hydraulic cylinder body to be opened and closed.

Preferably, the rotating teeth and the braking teeth are located on the same horizontal plane, and the rotating teeth and the braking teeth are helical gears which are opposite in direction and adaptive in specification.

Preferably, the brake teeth are made of rubber.

Preferably, the fixing seat is fixedly provided with a connecting plate, the connecting plate is provided with a sliding groove, and the limiting rod is fixedly provided with a clamping block matched with the sliding groove.

Preferably, the motor body is provided with a sliding groove for the limiting rod to slide.

Preferably, the fixed seat is fixedly sleeved on the outer wall of the rotating shaft through a bearing sleeve.

Preferably, the ac contactor is electrically connected to the fuse via a wire.

(III) advantageous effects

The utility model provides a motor brake for motor braking. The method has the following beneficial effects:

1. this motor brake for motor braking through the setting of motor band-type brake, can reduce the rotational speed of pivot rapidly, and the hydraulic cylinder body that deuterogamies makes it carry out the joint with the tooth through the gag lever post removal braking tooth, and then can make the pivot be in stable state instantaneously to reach and make its stall's effect, solved the friction disc and the pivot outer wall frictional force limited and lead to its still to have great rotation inertia's problem in the motor band-type brake of current device.

2. This motor brake for motor braking through the setting of braking tooth and spiral tooth helical gear, can maximize its area of contact each other, and then can guarantee its reverse braking force of applying to the rotation of the rotating shaft to reach and make the pivot be in stable state, the setting of braking tooth plastic material simultaneously can maximize reduce its and spiral tooth produced interact power when contacting, thereby avoids revolving the tooth and receives the too big condition emergence that leads to its damage of braking power.

Drawings

FIG. 1 is a schematic diagram of the circuit of the present invention;

fig. 2 is a schematic structural diagram of the motor brake of the present invention.

In the figure: 1. a motor body; 2. an on-off key; 3. braking the motor; 4. an external switch; 5. an AC contactor; 6. a fuse; 7. braking by a motor; 8. a hydraulic cylinder block; 9. a limiting rod; 10. a chute; 11. a brake tooth; 12. a rotating shaft; 13. rotating the teeth; 14. connecting plates; 15. a fixed seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, an embodiment of the present invention provides a technical solution: a motor brake for motor braking comprises a motor body 1 and an opening and closing key 2 arranged on the motor body 1, wherein the motor body 1 is fixedly connected with an alternating current contactor 5 through the opening and closing key 2;

in this embodiment, it should be added that the ac contactor 5 is mainly composed of four parts: the electromagnetic system comprises an attraction coil, a movable iron core and a static iron core; the contact system comprises three groups of main contacts and one to two groups of normally open and normally closed auxiliary contacts, and the contact system is connected with the movable iron core to be linked with the movable iron core; the arc extinguishing device is arranged on the general AC contactor with larger capacity so as to cut off the electric arc rapidly and avoid burning out the main contact; the motor comprises an insulating shell, accessories, various springs, a transmission mechanism, a short circuit ring, a wiring terminal and the like, wherein the model of the motor body 1 is 100L-LEFT.

The alternating current contactor 5 is electrically connected with a motor brake 7 through a lead, an external switch 4 for controlling the motor brake 7 to be opened and closed is arranged on the alternating current contactor 5, an output shaft of the motor body 1 is a rotating shaft 12, a rotating tooth 13 is assembled on the rotating shaft 12, a fixed seat 15 is sleeved on the rotating shaft 12, a hydraulic cylinder body 8 is fixedly installed on the fixed seat 15, the output end of the hydraulic cylinder body 8 is fixedly connected with a limiting rod 9, and a brake tooth 11 is arranged on the limiting rod 9;

in this embodiment, it should be noted that the hydraulic cylinder 8 can adjust the position of the braking tooth 11 through the limiting rod 9, and then can make it contact with the rotating tooth 13, so as to achieve the effect of braking the rotating tooth 13, and is convenient for applying opposite braking force to the rotating shaft 12 by matching with the motor band brake 3, thereby avoiding the occurrence of the situation that the rotating shaft 12 still has partial rotation inertia due to poor braking effect in the existing device, wherein the model of the ac contactor 5 is CJ10, and the model of the hydraulic cylinder 8 is D20.

In this embodiment, the external switch 4 is provided with two switch keys for respectively controlling the opening and closing of the motor brake 7 and the hydraulic cylinder 8;

wherein external switch 4 can control motor band-type brake 3 through opening and close of control motor brake 7 and brakies countershaft 12, accomplishes first step braking, and the rethread is opened hydraulic cylinder body 8 and is adjusted the position relation between brake tooth 11 and the pivot 12, accomplishes second step braking to reach the effect that carries out high-efficient braking to countershaft 12, avoid current device to pivot 12 braking effect relatively poor and lead to its the condition that has rotation inertia to appear.

In this embodiment, it should be added that the spiral teeth 13 and the brake teeth 11 are located on the same horizontal plane, and the spiral teeth 13 and the brake teeth 11 are helical gears with opposite directions and adaptive specifications;

it is added that the arrangement of the same horizontal plane is convenient for the engagement of the braking teeth 11 and the rotating teeth 13, and the arrangement of the helical gears can maximize the contact area therebetween and increase the braking force applied to the rotating shaft 12.

In the present embodiment, it is necessary to supplement that the braking teeth 11 are made of rubber;

the arrangement of the rubber material of the braking teeth 11 can minimize the loss caused to the rotary teeth 13, and avoid the damage of the rotary teeth 13 caused by overlarge braking force.

In this embodiment, the fixed seat 15 is fixedly provided with a connecting plate 14, the connecting plate 14 is provided with a sliding groove 10, and the limiting rod 9 is fixedly provided with a clamping block matched with the sliding groove 10;

further, a sliding groove for the limiting rod 9 to slide is formed in the motor body 1;

the arrangement of the sliding groove, the sliding groove 10 and the clamping block can prevent the limiting rod 9 from moving out of a corresponding range, and therefore the brake tooth 11 can be conveniently adjusted.

In the embodiment, the fixed seat 15 is fixedly sleeved on the outer wall of the rotating shaft 12 through a bearing sleeve;

wherein the setting of bearing housing in fixing base 15 can guarantee to make pivot 12 be in normal pivoted state under the condition of fixing base 15 stability.

In this embodiment, it should be added that the ac contactor 5 is electrically connected to the fuse 6 through a wire;

the fuse 6 is an electric appliance which fuses a melt by using heat generated by the fuse when the current exceeds a specified value and disconnects a circuit, the fuse melts the melt by using the heat generated by the fuse after the current exceeds the specified value for a period of time, and the circuit is disconnected, and the fuse 6 is a circuit protector, wherein the model of the fuse 6 is RT-14.

The utility model discloses a theory of operation and use flow: when needing brake motor, make external switch 4 earlier through 7 accommodate motor brake 3 work of embracing of motor brake, make it reduce the rotational speed of pivot 12 in the short time, accomplish first step braking, it adjusts gag lever post 9 to recycle external switch 4 drive hydraulic cylinder body 8, thereby make braking tooth 11 and revolve tooth 13 and mesh, and then reach the effect that carries out second step braking to pivot 12, guarantee the device to the braking effect of pivot 12, the problem that current device is limited to pivot 12 braking effect and lead to still having rotational inertia has been solved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a motor brake for motor braking, includes motor body (1) and installs opening and close key (2) on it, and motor body (1) is through opening and close key (2) fixedly connected with ac contactor (5), its characterized in that: alternating current contactor (5) have motor brake (7) through wire electric connection, and be provided with external switch (4) that control motor brake (7) opened and close on alternating current contactor (5), the output shaft of motor body (1) is pivot (12), be equipped with on pivot (12) and revolve tooth (13), the cover is equipped with fixing base (15) in pivot (12), fixed mounting has hydraulic cylinder body (8) on fixing base (15), the output fixedly connected with gag lever post (9) of hydraulic cylinder body (8), and is provided with braking tooth (11) on gag lever post (9).

2. The motor brake as claimed in claim 1, wherein: and two switch keys for respectively controlling the opening and closing of the motor brake (7) and the hydraulic cylinder body (8) are arranged in the external switch (4).

3. The motor brake as claimed in claim 1, wherein: the rotary teeth (13) and the brake teeth (11) are positioned on the same horizontal plane, and the rotary teeth (13) and the brake teeth (11) are helical gears which are opposite in direction and adaptive in specification.

4. The motor brake as claimed in claim 1, wherein: the brake teeth (11) are made of rubber.

5. The motor brake as claimed in claim 1, wherein: the fixing seat (15) is fixedly provided with a connecting plate (14), the connecting plate (14) is provided with a sliding groove (10), and the limiting rod (9) is fixedly provided with a clamping block matched with the sliding groove (10).

6. The motor brake as claimed in claim 1, wherein: the motor body (1) is provided with a sliding groove for the limiting rod (9) to slide.

7. The motor brake as claimed in claim 1, wherein: the fixed seat (15) is fixedly sleeved on the outer wall of the rotating shaft (12) through a bearing sleeve.

8. The motor brake as claimed in claim 1, wherein: and the alternating current contactor (5) is electrically connected with a fuse (6) through a wire.