CN211852612U

CN211852612U - Electromagnetic brake

Info

Publication number: CN211852612U
Application number: CN202020497194.1U
Authority: CN
Inventors: 阳波
Original assignee: Chengdu Cdc Mechanical & Electrical Equipment Co ltd
Current assignee: Chengdu Cdc Mechanical & Electrical Equipment Co ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-11-03
Anticipated expiration: 2030-04-07

Abstract

The utility model provides an electromagnetic brake, which comprises a brake body and a brake structure positioned on the brake body; the brake structure comprises a manual release structure, and the manual release structure is connected with the movable plate and drives the movable plate to reciprocate; the manual release structure includes a locking mechanism that locks the position of the movable plate when the movable plate is moved to the extreme position. The problem that the control of the electromagnetic brake by the existing manual device is temporary is solved. The utility model discloses an electromagnetic brake has realized the fixed of manual release structure position of motion through locking mechanical system's setting, has avoided losing the external force after the manual release structure gets back to the original position immediately, and then has realized that manual release structure one operation changes electromagnetic brake's state for a long time, has avoided user's long-time operation, has simplified the operation, has made things convenient for the use.

Description

Electromagnetic brake

Technical Field

The utility model belongs to the technical field of the stopper, concretely relates to electromagnetic braking ware.

Background

The brake is a device having a function of decelerating, stopping, or maintaining a stopped state of a moving member (or a moving machine), and the brake may be classified into an outer locking type brake, an inner expanding shoe type brake, a band type brake, a disc type brake, an electromagnetic brake, and the like according to a structural form of the brake member.

An electromagnetic brake is a common brake at present, and the electromagnetic brake realizes a braking function by powering on and powering off in a use process. In order to ensure the working stability of the electromagnetic brake, the electromagnetic brake is provided with a manual device, and the working of the electromagnetic brake is manually controlled through the arrangement of the manual device, but the existing manual device controls the electromagnetic brake temporarily and needs to keep external force to realize long-time change of the state of the electromagnetic brake.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electromagnetic braking ware, it is temporary problem to electromagnetic braking ware's control to have solved current hand device.

The utility model discloses the technical scheme who adopts does:

an electromagnetic brake comprising a brake body and a braking structure located on the brake body;

the brake body comprises a movable plate, a brake pad and a fixed plate which are arranged in sequence, and the reciprocating motion of the movable plate drives the brake pad to be attached to or separated from the fixed plate;

the brake structure comprises a manual release structure, and the manual release structure is connected with the movable plate and drives the movable plate to reciprocate;

the manual release structure includes a locking mechanism that locks the position of the movable plate when the movable plate is moved to the extreme position.

The electromagnetic brake realizes manual control on the electromagnetic brake through the arrangement of the manual release structure, provides multiple control modes and ensures the working stability of the electromagnetic brake; the position of the manual release structure is limited by the arrangement of the locking mechanism, the long-time change of the state of the electromagnetic brake is ensured, and the problem that manual control is instantaneous control is solved.

Preferably, the locking mechanism includes a rotating shaft, a connecting rod and a connecting structure, the rotating shaft is connected with the connecting rod through the connecting structure, and the connecting rod is connected with the movable plate;

the connecting structure comprises a connecting shaft positioned at the end part of the rotating shaft and a connecting hole positioned at the end part of the connecting rod, the connecting shaft is inserted in the connecting hole, and the hole diameter of the connecting hole in the axial direction of the brake body is larger than the hole diameter in the radial direction of the brake body.

This electromagnetic braking ware passes through locking mechanical system's setting and changes electromagnetic braking ware's state, makes electromagnetic braking ware keep the state after changing simultaneously, has realized changing electromagnetic braking ware state for a long time, to some use scenes, has avoided the user to grip the handle for a long time, has liberated the user, and convenient to use person carries out other work, is favorable to improving work efficiency.

Preferably, two ends of the rotating shaft are respectively connected with a connecting rod.

The connecting hole comprises an oval hole body.

Preferably, the manual release structure further comprises a handle, and the handle is connected with the rotating shaft;

the handle is pulled to drive the rotating shaft, the connecting rod and the movable plate to move in sequence. Preferably, the brake body further includes a magnetically conductive housing, and the magnetically conductive housing is connected to the movable plate.

Preferably, the fixed plate is provided with a plurality of connecting rods, the fixed plate is connected with the magnetic conduction shell through the connecting rods, a gap is formed between the fixed plate and the magnetic conduction shell, and the movable plate and the brake pad are both located in the gap.

The electromagnetic brake ensures the planeness of the end surface of the magnetic conduction shell contacted with the movable plate by integrally molding the inner magnetic conduction shell and the outer magnetic conduction shell, reduces the number of parts and lowers the production cost; meanwhile, the procedures of inspection and secondary processing are reduced, and the working hours and the labor cost are reduced.

Preferably, the brake block is connected with a shaft sleeve, and a shaft body is arranged on the shaft sleeve.

Preferably, the braking structure further comprises an electromagnetic braking structure, and the electromagnetic braking structure is located in the magnetic conductive shell;

when the electromagnetic braking structure is electrified, the electromagnetic braking structure attracts the movable plate to be far away from the brake pad; when the electromagnetic braking structure is powered off, the electromagnetic braking structure drives the movable plate to approach the brake pad.

Preferably, the electromagnetic braking structure comprises a mounting hole and a magnetic part, and the mounting hole is positioned in the magnetic conductive shell;

the magnetic part comprises a magnetic body arranged in the mounting hole and a lead-out wire connected with the magnetic body, and the lead-out wire penetrates through the magnetic conduction shell and is connected with the power supply device.

Preferably, the electromagnetic braking structure further comprises a fixing portion, and the fixing portion is arranged in the mounting hole and located on the outer side of the magnetic portion.

The utility model has the advantages that:

the electromagnetic brake realizes the fixation of the movement position of the manual release structure through the arrangement of the locking mechanism, avoids the manual release structure from immediately returning to the original position after the external force is lost, further realizes the long-time change of the state of the electromagnetic brake by one-time operation of the manual release structure, avoids the long-time operation of a user, simplifies the operation and is convenient to use; meanwhile, the manual release structure is unchanged in operation, simple and easy to learn and grasp, and the popularization and learning cost is reduced.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.

FIG. 1 is a schematic diagram of an electromagnetic brake in a first view;

FIG. 2 is a schematic structural view of the brake body;

FIG. 3 is a schematic diagram of an electromagnetic brake in a second view;

FIG. 4 is a schematic view of a partial enlarged structure at A;

fig. 5 is a schematic structural view of an electromagnetic braking structure.

In the figure: 1. a brake body; 11. a movable plate; 12. a brake pad; 13. fixing a plate; 14. a magnetically conductive housing; 2. a manual release mechanism; 21. a locking mechanism; 211. a rotating shaft; 212. a connecting rod; 213. a connecting structure; 213a, a connecting shaft; 213b, a connection hole; 22. a handle; 3. an electromagnetic braking structure; 31. mounting holes; 32. a magnetic part; 33. a fixed part; 4. a shaft sleeve; 5. a connecting rod.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 5, an electromagnetic brake of the present embodiment includes a brake body 1 and a braking structure located on the brake body 1;

the brake body 1 comprises a movable plate 11, a brake pad 12 and a fixed plate 13 which are sequentially arranged, and the reciprocating motion of the movable plate 11 drives the brake pad 12 to be attached to or separated from the fixed plate 13;

the brake structure comprises a manual release structure 2, and the manual release structure 2 is connected with the movable plate 11 and drives the movable plate 11 to reciprocate;

the manual release mechanism 2 includes a locking mechanism 21, and the locking mechanism 21 locks the position of the movable plate 11 when the movable plate 11 is moved to the extreme position.

For example, for a normally closed electromagnetic brake, when the state of the electromagnetic brake needs to be changed by a manual device, the manual device is pulled to enable the brake pad 12 to be in a released state, so that a shaft body connected with the electromagnetic brake rotates; when the manual operating device is released, the manual operating device returns to the original position, the brake pad 12 also returns to the braking state, and the shaft body connected with the electromagnetic brake will not rotate.

The electromagnetic brake is designed for solving the problem that the existing manual device controls the electromagnetic brake temporarily, the electromagnetic brake realizes the fixation of the movement position of the manual release structure 2 through the arrangement of the locking mechanism 21, avoids the manual release structure 2 from returning to the original position immediately after the external force is lost, further realizes the long-time change of the state of the electromagnetic brake after the manual release structure 2 is operated once, avoids the long-time operation of a user, simplifies the operation and is convenient to use; meanwhile, the manual release structure 2 is unchanged in operation, simple and easy to learn and grasp, and the popularization and learning cost is reduced.

The operation of the electromagnetic brake will now be described with reference to the structure of the electromagnetic brake, wherein, in general, the reciprocating motion of the movable plate 11 changes the distance between the movable plate 11 and the brake pad 12, the movable plate 11 is pressed against the brake pad 12 to push the brake pad 12 to be pressed against the fixed plate 13, so that the brake pad 12 is clamped between the movable plate 11 and the fixed plate 13, and the electromagnetic brake is in a braking state; the movable plate 11 moves reversely and moves away from the brake pad 12, so that gaps are respectively formed between the movable plate 11 and the brake pad 12 and between the brake pad 12 and the fixed plate 13, and the electromagnetic brake is in a released state.

For the manual release structure 2, the user pulls the manual release structure 2, and then drives the movable plate 11 connected with the manual release structure 2 to move, and meanwhile, when the movable plate 11 moves to the limit position, the manual release structure 2 is kept at the limit position due to the limiting effect of the locking mechanism 21, and the user can loosen the manual release structure 2 and perform other operations, thereby freeing the user. When the electromagnetic brake needs to return to the previous state, the manual release structure 2 is pulled reversely.

The operation of the electromagnetic brake will be described below with reference to specific structures of the respective constituent parts of the electromagnetic brake.

In the specific embodiments provided by the present disclosure, the locking mechanism 21 may be configured in any suitable configuration. Alternatively, the locking mechanism 21 includes a rotating shaft 211, a connecting rod 212, and a connecting structure 213, wherein the rotating shaft 211 is connected to the connecting rod 212 through the connecting structure 213, and the connecting rod 212 is connected to the movable plate 11.

Now, the specific structure of the locking mechanism 21 is supplemented, wherein the manual release structure 2 further includes a handle 22, when the user uses the manual release structure 2, the user pulls the handle 22 and rotates the rotating shaft 211 connected to the handle 22 along with the handle 22, due to the existence of the connecting structure 213, the rotating shaft 211 further drives the connecting rod 212 to move, and the rotation of the rotating shaft 211 is converted into the linear motion of the connecting rod 212, and the movable plate 11 connected to the connecting rod 212 further moves under the driving of the connecting rod 212, thereby changing the state of the electromagnetic brake.

Specifically, as an option, the connection structure 213 includes a connection shaft 213a at an end of the rotation shaft 211 and a connection hole 213b at an end of the connection shaft 212, the connection shaft 213a is inserted into the connection hole 213b, and an aperture of the connection hole 213b in the axial direction of the brake body 1 is larger than an aperture in the radial direction of the brake body 1.

Now, the function of the connection structure 213 is supplemented with the specific structure of the connection structure 213, wherein, because the aperture of the connection hole 213b is not consistent, when the connection shaft 213a rotates in the connection hole 213b under the driving of the rotation shaft 211, for example, the connection shaft 213a moves from the large aperture of the connection hole 213b to the small aperture of the connection hole 213b, because the positions of the handle 22 and the rotation shaft 211 are relatively unchanged, the connection rod 212 performs relative displacement to realize the movement of the connection shaft 213a, and the connection rod 212 passes through the magnetic conductive shell 14 and then is connected to the movable plate 11, because of the limiting function of the magnetic conductive shell 14, the connection rod 212 can only slide in the magnetic conductive shell 14, so the movement form of the connection rod 212 is expressed as a linear movement.

Meanwhile, the part of the connecting rod 212 located in the magnetic conductive shell 14 is connected with the first spring, and when a user pulls the handle 22 to enable the connecting rod 212 to slide, the first spring sleeved on the connecting rod 212 deforms; when a user reversely pulls the handle 22, the first spring restores the original shape and simultaneously drives the connecting rod 212 to reversely slide, so that the state switching effectiveness of the electromagnetic brake is ensured, the failure rate is reduced, and the maintenance cost is reduced.

Preferably, now, describing the locking position of the connection structure 213, after the connection shaft 213a moves to the small aperture of the connection hole 213b, since the diameter of the connection shaft 213a is larger than that of the small aperture, the matching relationship between the connection shaft 213a and the connection hole 213b becomes interference fit, and meanwhile, the friction force between the connection shaft 213a and the connection hole 213b is matched, so that the elastic force of the first spring is overcome, and it is ensured that the manual release structure 2 does not return to the original position under the action of the first spring after the user releases the handle, which plays the role of forcibly changing the state of the electromagnetic brake, and frees the user for facilitating other work of the user. The reverse pulling of the handle 22 causes the manual release mechanism 2 to return to the initial position under the action of the first spring.

This electromagnetic braking ware passes through locking mechanical system 21's setting and changes electromagnetic braking ware's state, makes electromagnetic braking ware keep the state after changing simultaneously, has realized changing electromagnetic braking ware state for a long time, to some use scenes, has avoided the user to hold handle 22 for a long time, has liberated the user, and convenient to use person carries out other work, is favorable to improving work efficiency.

A practical arrangement of the manual release mechanism 2 is now given, and in particular, as an alternative, a connecting rod 212 is connected to each end of the rotating shaft 211.

A practical arrangement of the connection hole 213b is now given, in particular, as an alternative, the connection hole 213b comprises an elliptical hole body.

In the specific embodiments provided by the present disclosure, the manual release structure 2 may be configured in any suitable configuration. Alternatively, the manual release mechanism 2 further comprises a handle 22, and the handle 22 is connected to the rotating shaft 211;

the pulling handle 22 drives the rotating shaft 211, the connecting rod 212 and the movable plate 11 to move in sequence. The manual release mechanism 2 is now supplemented, wherein the function of the handle 22 has been explained in conjunction with the specific structure of the locking mechanism 21 and will not be described in detail.

The handle 22 is convenient for a user to use the manual release structure 2, so that the difficulty of the operation of the manual release structure 2 is effectively reduced, and the effectiveness of the operation of the manual release structure 2 is improved.

In the specific embodiments provided by the present disclosure, the brake body 1 may be configured in any suitable configuration. Alternatively, the brake body 1 further includes a magnetically conductive housing 14, and the magnetically conductive housing 14 is connected to the movable plate 11.

The operation of the electromagnetic brake will now be described with reference to the specific structure of the brake body 1, wherein the electromagnetic brake includes, in addition to the movable plate 11, the brake pad 12 and the fixed plate 13, a magnetic conductive housing 14, a magnetic portion 32 is disposed in the magnetic conductive housing 14, and the magnetic conductive housing 14 generates a magnetic field to attract the movable plate 11 after the magnetic portion 32 is energized, so as to move the movable plate 11 and change the relative distance between the magnetic conductive housing 14, the movable plate 11, the brake pad 12 and the fixed plate 13, thereby achieving the purpose of changing the state of the electromagnetic brake.

Compared with the existing electromagnetic brake, the magnetic conduction shell 14 comprises an inner magnetic conduction shell and an outer magnetic conduction shell, a groove body used for placing the magnetic part 32 is reserved between the inner magnetic conduction shell and the outer magnetic conduction shell, and meanwhile, the inner magnetic conduction shell and the outer magnetic conduction shell are respectively provided with an end face to be contacted with the movable plate 11.

For the outer magnetic conductive shell, the error between the outer magnetic conductive shell and the movable plate 11 is the accumulated error between the inner magnetic conductive shell and the magnetic part 32 and the error between the magnetic part 32 and the outer magnetic conductive shell, and it is difficult to ensure the flatness between the end surface of the inner magnetic conductive shell and the end surface of the outer magnetic conductive shell, and it is necessary to perform inspection and secondary processing one by one, which increases the production cost and time.

The electromagnetic brake integrally forms the inner magnetic conduction shell and the outer magnetic conduction shell, ensures the planeness of the end surface of the magnetic conduction shell 14 contacted with the movable plate 11, reduces the number of parts and reduces the production cost; meanwhile, the procedures of inspection and secondary processing are reduced, and the working hours and the labor cost are reduced.

The structure of the brake body 1 is supplemented, wherein the magnetic conductive shell 14 and the fixed plate 13 keep unchanged in position during the state change of the electromagnetic brake, so as to play a role in limiting, and a scheme for connecting the magnetic conductive shell 14 and the fixed plate 13 is provided, specifically, as an option, a plurality of connecting rods 5 are arranged on the fixed plate 13, the fixed plate 13 is connected with the magnetic conductive shell 14 through the connecting rods 5, a gap is arranged between the fixed plate 13 and the magnetic conductive shell 14, and the movable plate 11 and the brake pad 12 are both positioned in the gap.

More specifically, the connecting rods 5 are evenly distributed on the circumference of the fixed plate 13. The design is convenient for the installation of the connecting rod 5, is favorable for stress balance, and improves the service life of the whole electromagnetic brake.

More specifically, as an option, the brake pad 12 is connected with the shaft sleeve 4, and a shaft body is arranged on the shaft sleeve 4.

The shaft body is driven by the power device to rotate, and the shaft sleeve 4 is positioned on the shaft body and rotates along with the shaft body; meanwhile, the shaft sleeve 4 is connected with the brake pad 12, when the brake pad 12 is in a braking state, the rotation of the shaft sleeve 4 and the shaft body is limited, and the shaft body is in the braking state; on the contrary, the brake block 12 is in a released state, the rotation of the shaft body is not limited, and the shaft body can rotate freely.

In the specific embodiments provided by the present disclosure, the detent structure may be configured in any suitable configuration. Optionally, the braking structure further comprises an electromagnetic braking structure 3, and the electromagnetic braking structure 3 is located in the magnetically conductive housing 14.

The structure of the brake structure is supplemented, wherein the brake structure comprises an electromagnetic brake structure 3 besides the manual release structure 2, the change of the state of the electromagnetic brake is realized by electrifying and powering off the electromagnetic brake structure 3, and the automatic control and the remote control of the electromagnetic brake are realized; compared with other types of brakes, the brake has the advantages that the structure of the brake is simplified, the use amount of parts is reduced, and the production and design costs are reduced.

The operation of the electromagnetic braking structure 3 will now be described, when the electromagnetic braking structure 3 is energized, the electromagnetic braking structure 3 attracts the movable plate 11 away from the brake pad 12; when the electromagnetic braking structure 3 is powered off, the electromagnetic braking structure 3 drives the movable plate 11 to approach the brake pad 12.

Specifically, as an option, the electromagnetic braking structure 3 includes a mounting hole 31 and a magnetic part 32, the mounting hole 31 is located in the magnetically conductive housing 14;

the magnetic part 32 includes a magnetic body disposed in the mounting hole 31 and an outlet connected to the magnetic body, and the outlet passes through the magnetically conductive housing 14 and is connected to a power supply device.

The specific structure of the electromagnetic braking structure 3 is now supplemented, wherein the mounting hole 31 is located in the magnetic conductive housing 14, the magnetic portion 32 is disposed in the mounting hole 31, when the magnetic portion 32 is energized, a magnetic field is generated to attract the movable plate 11 to move towards the magnetic conductive housing 14, and the movable plate 11 simultaneously deforms the second spring located in the magnetic conductive housing 14; when the magnetic portion 32 is de-energized, the magnetic field disappears and the movable plate 11 rebounds under the action of the second spring.

Preferably, the magnetic body is an ac electromagnet, a dc electromagnet, or the like, which is within the protection scope of the present invention.

Specifically, as an option, the electromagnetic braking structure 3 further includes a fixing portion 33, and the fixing portion 33 is disposed in the mounting hole 31 and located outside the magnetic portion 32.

Now, the electromagnetic braking structure 3 is supplemented, wherein, in order to avoid the magnetic portion 32 from being disengaged from the mounting hole 31, a fixing portion 33 is provided to limit the displacement of the magnetic portion 32 in the mounting hole 31, thereby ensuring the service life of the electromagnetic braking structure 3.

Preferably, the fixed portion 33 is aliphatic amine, alicyclic amine, aromatic amine, polyamide, acid anhydride, resin, tertiary amine, etc. within the scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

1. An electromagnetic brake, characterized by: the brake comprises a brake body (1) and a braking structure positioned on the brake body (1);

the brake body (1) comprises a movable plate (11), a brake pad (12) and a fixed plate (13) which are sequentially arranged, and the reciprocating motion of the movable plate (11) drives the brake pad (12) to be attached to or separated from the fixed plate (13);

the brake structure comprises a manual release structure (2), and the manual release structure (2) is connected with the movable plate (11) and drives the movable plate (11) to reciprocate;

the manual release structure (2) includes a locking mechanism (21), and the locking mechanism (21) locks the position of the movable plate (11) when the movable plate (11) moves to the extreme position.

2. The electromagnetic brake of claim 1, wherein: the locking mechanism (21) comprises a rotating shaft (211), a connecting rod (212) and a connecting structure (213), the rotating shaft (211) is connected with the connecting rod (212) through the connecting structure (213), and the connecting rod (212) is connected with the movable plate (11);

the connecting structure (213) comprises a connecting shaft (213a) located at the end part of the rotating shaft and a connecting hole (213b) located at the end part of the connecting shaft, the connecting shaft (213a) is inserted into the connecting hole (213b), and the axial hole diameter of the connecting hole (213b) along the brake body (1) is larger than the radial hole diameter of the brake body (1).

3. The electromagnetic brake of claim 2, wherein: two ends of the rotating shaft (211) are respectively connected with a connecting rod (212);

the connection hole (213b) includes an elliptical hole body.

4. The electromagnetic brake of claim 2, wherein: the manual release structure (2) further comprises a handle (22), and the handle (22) is connected with the rotating shaft (211);

the handle (22) is pulled to drive the rotating shaft (211), the connecting rod (212) and the movable plate (11) to move in sequence.

5. The electromagnetic brake of claim 1, wherein: the brake body (1) further comprises a magnetic conduction shell (14), and the magnetic conduction shell (14) is connected with the movable plate (11).

6. The electromagnetic brake of claim 5, wherein: the brake is characterized in that the fixed plate (13) is provided with a plurality of connecting rods (5), the fixed plate (13) is connected with the magnetic conduction shell (14) through the connecting rods (5), a gap is formed between the fixed plate (13) and the magnetic conduction shell (14), and the movable plate (11) and the brake pad (12) are located in the gap.

7. The electromagnetic brake of claim 5, wherein: the brake block (12) is connected with the shaft sleeve (4), and a shaft body is arranged on the shaft sleeve (4).

8. The electromagnetic brake of claim 5, wherein: the brake structure further comprises an electromagnetic brake structure (3), and the electromagnetic brake structure (3) is positioned in the magnetic conductive shell (14);

when the electromagnetic braking structure (3) is electrified, the electromagnetic braking structure (3) attracts the movable plate (11) to be far away from the brake pad (12); when the electromagnetic braking structure (3) is powered off, the electromagnetic braking structure (3) drives the movable plate (11) to approach the brake pad (12).

9. The electromagnetic brake of claim 8, wherein: the electromagnetic braking structure (3) comprises a mounting hole (31) and a magnetic part (32), and the mounting hole (31) is positioned in the magnetic conduction shell (14);

the magnetic part (32) comprises a magnetic body arranged in the mounting hole (31) and an outgoing line connected with the magnetic body, and the outgoing line penetrates through the magnetic conduction shell (14) and is connected with a power supply device.

10. The electromagnetic brake of claim 9, wherein: the electromagnetic braking structure (3) further comprises a fixing portion (33), and the fixing portion (33) is arranged in the mounting hole (31) and located on the outer side of the magnetic portion (32).