Brake motor

Abstract

The utility model discloses a brake motor, which relates to the technical field of brake equipment and specifically comprises a friction plate, a bayonet is arranged on one side of the outer cambered surface of the friction plate, a fastening nut is fixedly mounted on the inner side wall of the bayonet, a through groove is arranged in the middle of the surface of one side of the friction plate, and the fastening nut is fixedly mounted in the through groove. A brake pad is fixedly installed on the surface of one side of the friction plate through a bayonet, a shaft sleeve is connected into a through groove in one side of the friction plate in a penetrating mode, teeth are arranged on the outer arc face of the shaft sleeve and connected with the brake pad in a meshed mode, and an assembly part is fixedly installed on the surface of one side of the brake pad through a bolt. The brake cam is additionally arranged on the basis of a traditional electromagnetic brake structure, the position of the brake cam is controlled through attraction of magnetic attraction force, and therefore after electromagnetism disappears, the brake cam rotates to the initial state on the boss and is connected with the shaft sleeve in a clamped mode, the brake piece is pushed to press an assembly part, and friction is increased; and the other side of the assembly part is clamped between the fixing pieces for connection and braking, so that overload protection is realized, and the safety performance is high.

Description

Technical Field

[0001] The utility model relates to the field of brake equipment, in particular to a brake motor. Background Art

[0002] A brake is a device that has the function of slowing down, stopping or keeping moving parts (or moving machinery) in a stopped state. It is a mechanical part that stops or slows down moving parts in a machine. It is commonly known as a brake or gate. The brake is mainly composed of a frame, brake parts and operating devices.

[0003] An electromagnetic brake is currently installed on the tail shaft of the motor. Although this type of brake motor has the advantages of simple structure and low cost, once the brake fails or malfunctions, the transmission system cannot be braked in time, which not only makes it unable to work normally, but may even cause serious safety accidents, and has the defect of poor safety performance. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a brake motor having a mechanical structure assisting an electromagnetic brake system, thereby improving the braking effect under double protection.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a brake motor includes a friction plate, a bayonet is provided on one side of the outer arc surface of the friction plate, a fastening nut is fixedly installed on the inner side wall of the bayonet, a through groove is provided in the middle of one side surface of the friction plate, a brake plate is fixedly installed on one side surface of the friction plate through the bayonet, a shaft sleeve is connected through the through groove on one side of the friction plate, teeth are provided on the outer arc surface of the shaft sleeve, the teeth are meshed and connected with the brake plate, an assembly part is fixedly installed on one side surface of the brake plate by bolts, the middle part of one side surface of the assembly part is a hollow structure, a coil is fixedly installed on the inner side wall of the assembly part, an outer ring base is fixedly installed on the side of the assembly part close to the coil, bosses are provided on both sides of the outer arc surface of the outer ring base, and a through hole is provided on one side surface of the boss.

[0006] Optionally, a fixing plate is fixedly installed on one side of the assembly away from the brake pad, and a convex pattern is provided on one side of the assembly and matched with the fixing plate. A rectangular groove is opened in the middle of the surface of one side of the fixing plate, and the rectangular groove on one side of the fixing plate and the through groove on one side of the friction plate are on the same horizontal plane. The friction plate is sucked onto the brake pad and just engages with the teeth on the sleeve. At this time, the friction plate is sucked onto the brake pad and fixed. At this time, there is a gap between the assembly and the brake pad, which effectively avoids axial movement of the rear end assembly and the fixing plate.

[0007] Optionally, an armature is slidably engaged in the through hole on one side of the boss, a return spring is fixedly installed in the middle of one side surface of the armature, the number of the bosses is two and they are distributed in a mirror-symmetrical manner, and one end of the return spring is penetrated and connected with a brake cam.

[0008] Optionally, the outer arc surface of the brake cam is provided with the same teeth, and a limiting portion is provided on one side of the brake cam. The limiting portion is movably engaged with a return spring, and the outer arc surface of the brake cam is meshed and engaged with the teeth of the outer arc surface of the sleeve. One side of the brake cam is movably connected to one side of the boss through a rotating shaft.

[0009] Optionally, the outer arc surface of the sleeve is placed on the inner arc surface of the outer ring base, and there is a gap between the friction plate and the brake plate.

[0010] Optionally, the number of the armatures is two, and they are distributed on both sides of the outer ring base in a mirror-symmetrical manner, and the two armatures are adsorbed and connected to the coil.

[0011] Optionally, anti-slip grooves are provided on the side walls on both sides of the brake pad, and a wear-resistant layer is provided on the side wall of the assembly close to the brake pad, the position of the wear-resistant layer corresponds to the side wall of the brake pad, and the elastic force is restored by the amount of stretching of the rear end of the return spring, so that the connected brake cam rotates on the boss to an initial state and engages with the shaft sleeve to push the brake pad toward the assembly. Since the anti-slip grooves on one side of the brake pad correspond to the wear-resistant layer on one side of the assembly, the friction is increased, and the other side of the assembly is clamped between the fixing plates to achieve braking, and the fixing plate is fixed to the motor by the side ears to remain stationary, so the friction is further increased.

[0012] The utility model provides a brake motor, which has the following beneficial effects:

[0013] By adding a brake cam on the basis of the traditional electromagnetic brake structure, the position of the brake cam is controlled by magnetic attraction. Therefore, after the electromagnetic disappears, the brake cam rotates to the initial state on the boss and engages with the shaft sleeve, pushing the brake pad to press against the assembly to increase friction, while the other side of the assembly is clamped between the fixed plates to connect the brake, thereby achieving overload protection and high safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0015] Figure 1This is a schematic diagram of the overall brake structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the disassembled structure of the utility model;

[0017] Figure 3 It is a partial structural schematic diagram of the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the motor connection structure of the utility model.

[0020] In the figure: 1. friction plate; 2. bayonet; 3. brake pad; 4. bushing; 5. teeth; 6. assembly part; 7. coil; 8. outer ring base; 9. boss; 10. fixing plate; 11. armature; 12. return spring; 13. brake cam; 14. limit part. DETAILED DESCRIPTION

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0022] See also Figures 1 to 5 The utility model provides a technical solution: a brake motor comprises a friction plate 1, a bayonet 2 is provided on one side of the outer arc surface of the friction plate 1, a fastening nut is fixedly installed on the inner side wall of the bayonet 2, a through groove is provided in the middle of one side surface of the friction plate 1, a brake plate 3 is fixedly installed on one side surface of the friction plate 1 through the bayonet 2, a shaft sleeve 4 is connected through the through groove on one side of the friction plate 1, teeth 5 are provided on the outer arc surface of the shaft sleeve 4, the teeth 5 are meshed with the brake plate 3, an assembly part 6 is fixedly installed on one side surface of the brake plate 3 by bolts, and one side of the assembly part 6 The middle part of the surface is a hollow structure, a coil 7 is fixedly installed on the inner wall of the assembly part 6, an outer ring base 8 is fixedly installed on the side of the assembly part 6 close to the coil 7, bosses 9 are provided on both sides of the outer arc surface of the outer ring base 8, and a through hole is provided on one side surface of the boss 9. A fixing plate 10 is fixedly installed on the side of the assembly part 6 away from the brake pad 3, a convex pattern is provided on one side of the assembly part 6 and is adapted to the fixing plate 10, a rectangular groove is opened in the middle of one side surface of the fixing plate 10, and the rectangular groove on one side of the fixing plate 10 and the through groove on one side of the friction plate 1 are on the same horizontal plane.

[0023] The friction plate 1 is sucked onto the brake plate 3 and is engaged with the teeth 5 on the sleeve 4. At this time, the friction plate 1 is sucked onto the brake plate 3 and fixed. At this time, there is a gap between the assembly part 6 and the brake plate 3, which effectively avoids axial movement of the rear end assembly part 6 and the fixing plate 10.

[0024] An armature 11 is slidably engaged in the through hole on one side of the boss 9, and a return spring 12 is fixedly installed in the middle of one side surface of the armature 11. There are two bosses 9, which are distributed in a mirror-symmetrical manner. A brake cam 13 is connected to one end of the return spring 12. The outer arc surface of the brake cam 13 is provided with the same teeth 5. A limiting portion 14 is provided on one side of the brake cam 13. The limiting portion 14 is movably engaged with the return spring 12. The outer arc surface of the brake cam 13 is meshed with the teeth 5 on the outer arc surface of the sleeve 4, and the brake One side of the cam 13 is movably connected to one side of the boss 9 through a rotating shaft, the outer arc surface of the sleeve 4 is placed on the inner arc surface of the outer ring base 8, there is a gap between the friction plate 1 and the brake plate 3, there are two armatures 11, and they are distributed on both sides of the outer ring base 8 in a mirror-symmetrical manner, the two armatures 11 are adsorbed and connected to the coil 7, anti-slip grooves are provided on the side walls on both sides of the brake plate 3, and a wear-resistant layer is provided on the side wall of the assembly part 6 close to the brake plate 3, and the position of the wear-resistant layer corresponds to the side wall of the brake plate 3.

[0025] The return spring 12 is stretched at the rear end and the elastic force is restored, so that the connected brake cam 13 rotates on the boss 9 to the initial state and engages with the shaft sleeve 4, pushing the brake pad 3 to press against the assembly 6. Since one side of the brake pad 3 is provided with anti-slip grooves, they correspond to the wear-resistant layer on one side of the assembly 6, thereby increasing the friction. The other side of the assembly 6 is clamped between the fixing plates 10 to achieve braking. Since the fixing plate 10 is fixed to the motor by the side ears and remains stationary, the friction is further increased.

[0026] In the utility model, the working steps of the device are as follows:

[0027] When the coil 7 is energized, the armature 11 is attracted, and the armature 11 stretches the return spring 12. The gap between the outer ring base 8 on the armature 11 becomes zero. While the return spring 12 is stretched, the brake cam 13 at one end is released from the meshing with the outer teeth 5 of the sleeve 4 under the action of traction. Due to the magnetic field attraction of the coil 7, the friction plate 1 is sucked onto the brake plate 3 and is just engaged with the teeth 5 on the sleeve 4. At this time, the friction plate 1 is sucked onto the brake plate 3 and fixed. At this time, there is a gap between the assembly 6 and the brake plate 3, which effectively avoids the axial movement of the rear end assembly 6 and the fixing plate 10, and eliminates the friction between the assembly 6 and the fixing plate 10. During this process, it should be noted that the coil 7 needs to control the interference of the movement of the armature 11. When the coil 7 is powered off, the armature 11 loses its electromagnetic force, and the rear end of the return spring 12 is stretched and expanded to restore the elastic force, so that the connected brake cam 13 rotates on the boss 9 to its initial state and engages with the shaft sleeve 4, pushing the brake pad 3 to press against the assembly 6. Since one side of the brake pad 3 is provided with anti-slip grooves, it will correspond to the wear-resistant layer on one side of the assembly 6, thereby increasing the friction. The other side of the assembly 6 is clamped between the fixing plates 10 to achieve braking, and since the fixing plate 10 is fixed to the motor by the side ears and remains stationary, the friction is further increased.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brake motor, comprising a friction plate (1), characterized in that: A bayonet (2) is provided on one side of the outer arc surface of the friction plate (1), and a fastening nut is fixedly installed on the inner side wall of the bayonet (2). A through groove is provided in the middle of one side surface of the friction plate (1), and a brake plate (3) is fixedly installed on one side surface of the friction plate (1) through the bayonet (2). A shaft sleeve (4) is connected through the through groove on one side of the friction plate (1), and teeth (5) are provided on the outer arc surface of the shaft sleeve (4), and the teeth (5) are meshed with the brake plate (3). An assembly part (6) is fixedly installed on one side surface of the brake plate (3) by bolts, and the middle part of one side surface of the assembly part (6) is a hollow structure. A coil (7) is fixedly installed on the inner side wall of the assembly part (6), and an outer ring base (8) is fixedly installed on the side of the assembly part (6) close to the coil (7). Bosses (9) are provided on both sides of the outer arc surface of the outer ring base (8), and a through hole is provided on one side surface of the boss (9).

2. A brake motor according to claim 1, characterized in that: A fixing plate (10) is fixedly mounted on the side of the assembly part (6) away from the brake pad (3); one side of the assembly part (6) is provided with a convex pattern and is matched with the fixing plate (10); a rectangular groove is opened in the middle of the surface of one side of the fixing plate (10); the rectangular groove on one side of the fixing plate (10) and the through groove on one side of the friction plate (1) are on the same horizontal plane.

3. A brake motor according to claim 2, characterized in that: An armature (11) is slidably engaged in a through hole on one side of the boss (9), and a return spring (12) is fixedly installed in the middle of one side surface of the armature (11). The number of the bosses (9) is two and they are distributed in a mirror-symmetrical manner, and one end of the return spring (12) is penetrated and connected with a brake cam (13).

4. A brake motor according to claim 3, characterized in that: The outer arc surface of the brake cam (13) is provided with the same teeth (5), and a limiting portion (14) is provided on one side of the brake cam (13). The limiting portion (14) is movably engaged with the return spring (12), and the outer arc surface of the brake cam (13) is meshed with the teeth (5) on the outer arc surface of the shaft sleeve (4). One side of the brake cam (13) is movably connected to one side of the boss (9) through a rotating shaft.

5. A brake motor according to claim 4, characterized in that: The outer arc surface of the shaft sleeve (4) is placed on the inner arc surface of the outer ring base (8), and there is a gap between the friction plate (1) and the brake plate (3).

6. A brake motor according to claim 5, characterized in that: The number of the armatures (11) is two, and they are distributed on both sides of the outer ring base (8) in a mirror-symmetrical manner. The two armatures (11) are adsorbed and connected to the coil (7).

7. A brake motor according to claim 6, characterized in that: The side walls on both sides of the brake pad (3) are provided with anti-skid grooves, and the side wall of the assembly part (6) close to the brake pad (3) is provided with a wear-resistant layer, and the position of the wear-resistant layer corresponds to the side wall of the brake pad (3).

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