Floating brake

Abstract

The utility model belongs to the technical field of brakes, and mainly relates to a floating brake which comprises two guide columns, a main body, two armatures and two reset elastic pieces. During braking, the magnet yoke assembly does not magnetically attract the armatures any more, one armature close to the magnet yoke assembly will firstly make contact with the brake disc, then the other armature makes contact with the brake disc, in the process that the armatures make contact with the brake disc, the main body will slide on the guide column, and at the moment, the main body will abut against the reset elastic piece to make the reset elastic piece generate elastic deformation; in this way, when braking is not carried out, elastic force for resetting the body is provided, and the back-moving armature is prevented from making contact with the brake disc all the time. And meanwhile, the main body slides, so that the movement of the brake disc is avoided, the armature can be in better contact with the brake disc, more uniform braking force is generated, and the braking stability and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of brake, mainly relates to a floating type brake. BACKGROUND

[0002] The electromagnetic brake is a kind of connector that transmits the driving side torsion to passive side, and can be combined, cut off or braked freely according to needs. The electromagnetic brake is fixedly installed on a fixed end, which can be an end cover of a motor, a frame of a vehicle or the like.

[0003] The power-off electromagnetic brake is a mechanical device for braking and releasing the brake disc using spring and power supply as power source, and its working principle is as follows: the magnetic yoke, the coil mounted on the magnetic yoke and the spring form a magnetic yoke assembly, when the coil is not connected to power supply, the spring presses the armature tightly on the brake disc to form friction resistance on the brake disc, so that the brake disc is braked and the equipment connected to the brake disc is braked; when the coil is connected to power supply, the magnetic force generated by the magnetic yoke is opposite to the thrust generated by the spring, and the electromagnetic force greater than the thrust of the spring attracts the armature to one side of the magnetic yoke, so that the armature is separated from the brake disc, thus a gap is generated between the armature and the brake disc, and the friction resistance acting on the brake disc disappears, and the brake is released.

[0004] However, most of the electromagnetic brakes in the prior art are fixed, and the brake disc needs to move axially during braking, which may cause the brake disc to shake and increase the instability during braking. UTILITY MODEL CONTENTS

[0005] The utility model provides a floating type brake to solve the problem of unstable braking of the brake in the prior art.

[0006] To solve the above problems, the utility model adopts the following technical scheme:

[0007] A floating type brake comprises:

[0008] The guide columns are spaced apart and fixedly assembled on the fixed end;

[0009] The main body comprises a magnetic yoke assembly and a base which can be detachably assembled together, and the magnetic yoke assembly and the base are both slidingly assembled on the guide columns, and the magnetic yoke assembly and the base have a braking space therebetween;

[0010] The armatures are two and are both located in the braking space, and the two armatures are used for placing the brake disc, and the two armatures are slidingly assembled on the guide columns, and the distance between the armature close to the magnetic yoke assembly and the brake disc is less than the distance between the armature close to the base and the brake disc, so that the armature close to the magnetic yoke assembly contacts the brake disc first during braking;

[0011] A reset elastic member is arranged on each guide column, one end of the reset elastic member is pressed against the magnet yoke assembly, and the other end of the reset elastic member is in abutting engagement with the corresponding guide column.

[0012] The magnet yoke assembly is no longer magnetically attracted to the armature, one armature close to the magnet yoke assembly will first contact the brake disc, and then the other armature will contact the brake disc, in the process of the armature contacting the brake disc, the main body will slide on the guide column, at this time, the main body will press the reset elastic member to produce elastic deformation, so as to provide elastic force for resetting the main body when braking is not performed, and prevent the armature that is first contacted from contacting the brake disc; meanwhile, the main body is slid to avoid movement of the brake disc, so that the armature can better contact the brake disc, thereby generating more uniform braking force, and the stability and efficiency of braking are improved.

[0013] Further, threaded studs are fixedly arranged on the base, the threaded studs slide through the magnet yoke assembly, two lock nuts are threadedly connected to each threaded stud and are arranged on both sides of the magnet yoke assembly, so as to fix the magnet yoke assembly and the base.

[0014] The distance between the magnet yoke assembly and the base can be adjusted by adjusting the lock nuts on both sides of the magnet yoke assembly, so that the brake disc of the utility model can be applied to brake discs of more thickness specifications.

[0015] Further, a friction layer for contacting the brake disc is arranged on one side of each armature close to the brake disc.

[0016] The friction layer and the brake disc can generate stronger braking force.

[0017] Further, one armature close to the base is detachably arranged on the base.

[0018] The armature and the base are fixed, so that the armature can move together with the base, so that the armature moves together with the base after braking is completed, instead of being in contact with the brake disc all the time.

[0019] Further, the reset elastic member is a compression spring, the compression spring is sleeved on the guide column, one end of the compression spring is pressed against the magnet yoke assembly, and the other end of the compression spring is in abutting engagement with the corresponding guide column.

[0020] The compression spring can be compressed by the magnet yoke assembly during braking, and the compressed compression spring is released after braking is completed, so that the magnet yoke assembly is better reset.

[0021] Further, the magnetic yoke assembly comprises a plurality of coils, a plurality of brake springs and a magnetic yoke disc slidingly assembled on the guide column, the plurality of brake springs and the plurality of coils are mounted on the magnetic yoke disc, the plurality of coils are used for magnetically attracting the armature close to the magnetic yoke disc, and the plurality of brake springs are used for pressing the armature close to the magnetic yoke disc, and the elastic force generated by the plurality of brake springs is greater than the elastic force generated by the reset elastic member.

[0022] Further, the guide column is threadedly connected to the fixed end, and two fastening nuts are threadedly connected to the guide column and arranged on two sides of the fixed end, so as to fasten the guide column to the fixed end.

[0023] The guide column is detachable, and when the guide column is short of extending from the fixed end, the two fastening nuts can be used for adjustment.

[0024] Further, the fixed end is threadedly connected with an adjusting bolt, one end of the adjusting bolt is pressed on the base, and the adjusting bolt is rotated to adjust the distance between the base and the fixed end. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description read in conjunction with the accompanying drawings. In the drawings, several embodiments of the present application are illustrated by way of example and not limitation. Like or corresponding reference numerals primarily designate like or corresponding parts throughout the several views of the drawings, and:

[0026] Figure 1 is a structural schematic view of the first perspective of the present application;

[0027] Figure 2 is a structural schematic view of the second perspective of the present application;

[0028] Figure 3 is a structural schematic view of the third perspective of the present application;

[0029] Figure 4 is an exploded view of the first perspective of the present application;

[0030] Figure 5 is an exploded view of the second perspective of the present application;

[0031] Figure 6 is Figure 4 is an enlarged view of A in FIG. 1;

[0032] Figure 7 is a structural schematic view of the magnetic yoke assembly.

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] 1, guide column; 2, magnetic yoke assembly; 3, base; 4, first armature; 5, second armature; 6, fixed end; 7, stud; 8, locking nut; 9, adjusting bolt; 10, brake disc; 11, compression spring; 12, fastening nut; 13, main body; 14, friction layer; 15, magnetic yoke disc; 16, coil; 17, brake spring. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be known by those skilled in the art that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] The various non-limiting embodiments of the present application will be specifically introduced below. Any element quantity in the drawings is used for example and is not limited, and any naming is only used for distinction and does not have any limiting meaning. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0037] As shown in the drawings, Figures 1-5 A floating brake includes two guide columns 1, a main body 13, a first armature 4, a second armature 5, two reset elastic members and an adjusting bolt 9.

[0038] The two guide columns 1 in the embodiment have a spacing and are fixedly assembled on the fixed end 6 in a detachable manner.

[0039] In other embodiments, the number of guide columns 1 can be determined according to actual conditions, for example, the number of guide columns 1 is more than three.

[0040] Specifically, the main body 13 includes a magnetic yoke assembly 2 and a base 3 which are detachably assembled together, the magnetic yoke assembly 2 and the base 3 are both slidingly assembled on the two guide columns 1, and the magnetic yoke assembly 2 and the base 3 have a spacing therebetween, which is a brake space;

[0041] The first armature 4 and the second armature 5 are both located in the brake space, and the first armature 4 and the second armature 5 also have a spacing therebetween, which is used for placing the brake disc 10, the first armature 4 and the second armature 5 are slidingly assembled on the two guide columns 1, and the distance between the first armature 4 close to the magnetic yoke assembly 2 and the brake disc 10 is less than the distance between the second armature 5 close to the base 3 and the brake disc 10, so that when braking, the first armature 4 close to the magnetic yoke assembly 2 contacts the brake disc 10 first, and the second armature 5 contacts the brake disc 10 later.

[0042] The reset elastic member in the embodiment is a compression spring 11, the compression spring 11 is sleeved on the guide column 1, one end of the compression spring 11 is pressed on the magnet yoke assembly 2, the other end of the compression spring 11 is abutted and matched with the corresponding guide column 1, and the compression spring 11 in the embodiment is away from the base 3. When braking, the compression spring 11 can be compressed by the magnet yoke assembly 2, and after the braking is completed, the compressed compression spring 11 is released, so that the magnet yoke assembly 2 is better reset.

[0043] In other embodiments, the reset elastic member is a nitrogen spring, one end of the nitrogen spring is pressed on the magnet yoke assembly 2, the other end of the nitrogen spring is fixed on the guide column 1, and the nitrogen spring is moved along the axial direction of the guide column 1.

[0044] In other embodiments, the reset elastic member is an elastic rubber block, the elastic rubber block is sleeved on the guide column 1, one end of the elastic rubber block is pressed on the magnet yoke assembly 2, and the other end of the elastic rubber block is abutted and matched with the corresponding guide column 1.

[0045] The adjusting bolt 9 is screwed on the fixed end 6, and one end of the adjusting bolt 9 is pressed on the base 3, the adjusting bolt 9 is rotated to adjust the distance between the base 3 and the fixed end 6, and the distance between the base 3 and the fixed end 6 is adjusted, that is, the distance between the main body 13 and the fixed end 6 is adjusted, so that the utility model is better braked, and the utility model is suitable for more specifications of the brake disc 10.

[0046] The position of the main body 13 is limited by the adjusting bolt 9, so that the main body 13 is prevented from being too close to the fixed end 6, and when braking, the magnet yoke assembly 2 is no longer magnetically attracted to the armature, one armature close to the magnet yoke assembly 2 will first contact the brake disc 10, and then the other armature will contact the brake disc 10, in the process that the armature contacts the brake disc 10, the main body 13 will slide on the guide column 1, at this time, the main body 13 will press the reset elastic member to produce elastic deformation, so that the elastic force of the reset of the main body 13 is provided when not braking, and the armature that is first contacted is prevented from directly contacting the brake disc 10; at the same time, the main body 13 slides, and the movement of the brake disc 10 is avoided, so that the armature can better contact the brake disc 10, thereby generating more uniform braking force, and the stability and efficiency of braking are improved.

[0047] Specifically, the base 3 is fixedly provided with a stud 7, the extension direction of the stud 7 is consistent with the extension direction of the guide column 1, the stud 7 is slidably penetrated through the magnet yoke assembly 2, and two lock nuts 8 are threadedly connected on each stud 7 and are arranged on the two sides of the magnet yoke assembly 2, so as to fix the magnet yoke assembly 2 and the base 3. The distance between the magnet yoke assembly 2 and the base 3 can be adjusted by adjusting the lock nuts 8 on the two sides of the magnet yoke assembly 2, so that the utility model can be suitable for more thickness specifications of the brake disc 10.

[0048] As Figure 6As shown, the first armature 4 and the second armature 5 are each provided with a friction layer 14 for contacting the brake disc 10 on one side close to the brake disc 10. When braking, the friction layer 14 and the brake disc 10 are in contact, which can generate stronger braking force.

[0049] The second armature 5 close to the base 3 is detachably assembled on the base 3. The second armature 5 is fixed with the base 3, so that the second armature 5 can move together with the base 3 on the guide column 1 after braking, instead of being in contact with the brake disc 10 all the time.

[0050] The guide column 1 is threadedly connected to the fixed end 6, and two fastening nuts 12 are threadedly connected to the guide column 1 and arranged on both sides of the fixed end 6, so as to fasten the guide column 1 to the fixed end 6. In this way, the guide column 1 is detachable, and when the guide column 1 is relatively short in extension from the fixed end 6, the extension length of the guide column 1 can be adjusted through the two fastening nuts 12, so that the utility model is applicable to more specifications of the brake disc 10.

[0051] Specifically, as shown in the drawings, Figure 7 The magnetic yoke assembly 2 comprises two coils 16, seven brake springs 17 and a magnetic yoke disc 15 slidably assembled on the guide column 1. The seven brake springs 17 and the two coils 16 are all mounted on the magnetic yoke disc 15. When energized, the two coils 16 can magnetically attract the first armature 4 close to the magnetic yoke disc 15, and the seven brake springs 17 are used for pressing the first armature 4 close to the magnetic yoke disc 15.

[0052] When braking, the elastic force generated by the seven brake springs 17 is greater than the elastic force generated by the reset elastic member, so that the main body 13 can slide on the guide column 1. When not braking, the attractive force generated by the coil 16 is greater than the elastic force generated by the seven brake springs 17.

[0053] In other embodiments, the number of coils 16 can be determined according to actual conditions, for example, one coil 16 or more than three coils 16.

[0054] In other embodiments, the number of brake springs 17 can be determined according to actual conditions, for example, more than eight brake springs 17 or less than six brake springs 17.

[0055] The working process of the utility model is as follows:

[0056] When not braking, the coil 16 that is energized will always magnetically attract the first armature 4, preventing it from contacting the brake disc 10. At this time, the compression spring 11 has already generated elastic force by being compressed, and the compression spring 11 is always pressing the magnetic yoke disc 15, so that the main body 13 is stably kept between the compression spring 11 and the adjusting bolt 9.

[0057] When braking, the coil 16 without electricity can not magnetize the first armature 4, at this time the brake spring 17 will be pressed against the first armature 4, so that it moves towards the direction of the brake disc 10, the first armature 4 first contacts the brake disc 10, the brake spring 17 continues to press the first armature 4, so that the main body 13 moves away from the fixed end 6, at this time the compression spring 11 is compressed, until the second armature 5 completely contacts the brake disc 10, the compression spring 11 is compressed to the maximum extent, the braking is completed. The distance of the compression spring 11 compressed during braking is the distance between the first armature 4 and the second armature 5 when not braking.

[0058] After braking is completed, the coil 16 is electrified, the coil 16 magnetizes the first armature 4, so that the first armature 4 has a tendency to move away from the brake disc 10, but at this time the compressed compression spring 11 is released, so that the first armature 4 will continue to contact the brake disc 10, and the main body 13 will move towards the fixed end 6, at this time the second armature 5 will first move away from the brake disc 10, and no longer contact the brake disc 10, until the base 3 presses against the adjusting bolt 9, the main body 13 no longer moves.

Claims

1. A floating brake, characterized by The utility model relates to a magnetic latching brake, comprising: a plurality of guide columns (1) are fixedly arranged on a fixed end (6); a main body (13) comprising a magnetic yoke assembly (2) and a base (3) which are detachably assembled together, the magnetic yoke assembly (2) and the base (3) are both slidingly arranged on the plurality of guide columns (1), and the magnetic yoke assembly (2) and the base (3) have a brake space therebetween; two armatures are arranged in the brake space, the two armatures are used for placing a brake disc (10) therebetween, and the two armatures are slidingly arranged on the plurality of guide columns (1); the distance between the armature close to the magnetic yoke assembly (2) and the brake disc (10) is smaller than the distance between the armature close to the base (3) and the brake disc (10), so that the armature close to the magnetic yoke assembly (2) first contacts the brake disc (10) when braking; a reset elastic member is arranged on each guide column (1), one end of the reset elastic member is pressed against the magnetic yoke assembly (2), and the other end of the reset elastic member is in abutting engagement with the corresponding guide column (1).

2. A floating brake according to claim 1, wherein The base (3) is fixedly provided with studs (7) which slidingly penetrate the magnetic yoke assembly (2), and two lock nuts (8) are threadedly connected to each stud (7) and arranged on the two sides of the magnetic yoke assembly (2), so as to fix the magnetic yoke assembly (2) and the base (3).

3. A floating brake as defined in claim 1, wherein Each armature is provided with a friction layer (14) on the side close to the brake disc (10) and used for contacting the brake disc (10).

4. A floating brake as defined in claim 2, wherein One armature close to the base (3) is detachably arranged on the base (3).

5. A floating brake as defined in claim 1, wherein The reset elastic member is a compression spring (11) which is sleeved on the guide column (1), one end of the compression spring (11) is pressed against the magnetic yoke assembly (2), and the other end of the compression spring (11) is in abutting engagement with the corresponding guide column (1).

6. A floating brake as defined in claim 1, wherein The magnetic yoke assembly (2) comprises a plurality of coils (16), a plurality of brake springs (17) and a magnetic yoke disc (15) which is slidingly arranged on the guide column (1), the plurality of brake springs (17) and the plurality of coils (16) are arranged on the magnetic yoke disc (15), the plurality of coils (16) are used for magnetically attracting the armature close to the magnetic yoke disc (15), the plurality of brake springs (17) are used for pressing the armature close to the magnetic yoke disc (15), and the elastic force generated by the plurality of brake springs (17) is greater than the elastic force generated by the reset elastic member.

7. A floating brake according to any one of claims 1-6, characterized in that The guide column (1) is threadedly connected to the fixed end (6), and two fastening nuts (12) are threadedly connected to the guide column (1) and arranged on the two sides of the fixed end (6), so as to fasten the guide column (1) to the fixed end (6).

8. A floating brake according to any one of claims 1-6, characterized in that The fixed end (6) is threadedly provided with an adjusting bolt (9), one end of the adjusting bolt (9) is pressed against the base (3), and the adjusting bolt (9) is rotated to adjust the distance between the base (3) and the fixed end (6).

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