Bidirectional self-locking brake device

Abstract

The utility model discloses a bi-directional self-locking brake device, relates to the technical field of self-locking brake, and specifically comprises a lock ring, a transmission structure and a lock cylinder, the transmission structure comprises a lock disc, two lock covers and a lock column, the lock disc is located between the two lock covers, the lock disc and the two lock covers form an I-shaped structure, and the lock column is located in the lock ring. The two lock covers are connected with the lock disc through bolts, the outer ring of the lock disc is movably sleeved with a lock ring, lock column grooves are evenly formed in the inner wall of the lock disc, lock columns are movably connected into inner cavities of the lock column grooves, the lock cylinder is located in the inner cavity of the lock disc, the outer side wall of the lock cylinder is provided with outwards-protruding sharp corners, and the sharp corners make contact with the inner wall of the lock disc. The sharp corners are located between every two adjacent lock columns. According to the bidirectional self-locking brake device, bidirectional self-locking is achieved through friction force between the lock cylinder and the lock ring, and the bidirectional self-locking brake device is not prone to damage, long in service life and low in cost. And different sizes and shapes can be made according to the requirements of equipment, so that the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of self-locking brakes, and specifically relates to a two-way self-locking brake device. Background Technique

[0002] As a key power source in modern industry, the motor is widely used in various mechanical equipment and systems. During the operation of the motor, the motor self-locking brake device plays a crucial role. It can quickly cut off the power transmission when the motor stops, enabling the motor and the load it drives to stop safely and accurately. In the related art, the motor self-locking brake device usually consists of a power supply electromagnet and a brake pad. However, the electromagnetic brake has a high failure rate, a short service life of the brake device, and a high cost. Once the brake device is damaged, the equipment is likely to drive the motor to rotate back due to vehicle slip, resulting in damage to the motor stator circuit and injuries and property damage caused by no protection during vehicle slip. Moreover, the installation of the above-mentioned type of motor self-locking brake device is complex and difficult to repair. Based on this, this application proposes a two-way self-locking brake device. Content of the Utility Model

[0003] The utility model provides a two-way self-locking brake device, which solves the problems of high failure rate, short service life, and high cost of the electromagnetic brake; easy occurrence of motor locking and burning out, injuries and property damage when the brake device is damaged, and complexity and difficulty in maintenance as mentioned in the above background technique.

[0004] The utility model provides the following technical solution: A two-way self-locking brake device includes a lock ring, a transmission structure, and a lock core. The transmission structure includes a lock disk, two lock covers, and lock columns. The lock disk is located between the two lock covers. The lock disk and the two lock covers form an I-shaped structure, and the two lock covers are connected to the lock disk by bolts. The outer ring of the lock disk is movably sleeved with a lock ring. The inner wall of the lock disk is evenly provided with lock column grooves. The inner cavity of the lock column grooves is movably connected with lock columns. The lock core is located in the inner cavity of the lock disk. The outer side wall of the lock core is provided with outwardly protruding sharp corners, which are in contact with the inner wall of the lock disk, and the sharp corners are located between two adjacent lock columns.

[0005] Preferably, the lock disk is a convex structure. The lock disk includes an inner ring and an outer ring. The outer diameter of the inner ring is adapted to the inner diameter of the lock ring, and the outer diameter of the outer ring is greater than the outer diameter of the inner ring.

[0006] Preferably, the difference between the outer diameter and the inner diameter of the inner ring is less than the diameter of the lock column. The inner ring is evenly provided with a first accommodation groove. The inner wall of the outer ring is provided with a second accommodation groove adapted to the lock column. The first accommodation groove and the second accommodation groove form a lock column groove, and the distance between the inner wall of the second accommodation groove and the inner wall of the inner ring is greater than the diameter of the lock column.

[0007] Preferably, the lock covers and the inner ring are both provided with threaded holes, and the bolts are adapted to the threaded holes.

[0008] Preferably, the outer side wall of the lock disk is provided with a rolling assembly, and the lock disk is in contact with the lock ring through the ball assembly.

[0009] Preferably, a through hole adapted to the inner wall of the lock core is provided in the middle of the lock cover; fixing holes are evenly provided on the outer ring of the lock ring, and the distance between the fixing holes and the axial center line of the lock ring is greater than the outer diameter of the lock cover.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The bidirectional self-locking brake device has a simple structure, is easy to install and maintain, has a wide range of applications, can be made into different sizes and shapes according to the needs of the equipment, and can also be installed inside the motor or on various equipment that requires self-locking rotation to improve its practicality.

[0012] 2. The two-way self-locking brake device uses the friction between the lock core and the lock ring to achieve two-way self-locking. The device is not easy to damage, has a long service life and low cost. Through the setting of the transmission structure, the driving element can drive the input end of the equipment to rotate. When a self-locking brake is required, such as when the equipment suddenly reverses and slips, the sharp corner of the lock core connected to the input end of the equipment will support the lock column, forcing the lock column to extend outward and rub against the fixed lock ring to achieve the self-locking brake function. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of the structure of the utility model;

[0014] Figure 2 The utility model structure Figure 1 Back side diagram;

[0015] Figure 3 It is a schematic diagram of the position between the lock ring and the lock disk of the structure of the utility model;

[0016] Figure 4 The utility model structure Figure 3 Back side diagram;

[0017] Figure 5 The utility model structure Figure 1 Explosion diagram.

[0018] In the figure: 1. lock ring; 2. lock cover; 3. bolt; 4. threaded hole; 5. lock core; 6. lock column; 7. lock disk; 8. lock column groove. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] The present utility model provides a two-way self-locking braking device, which includes a lock ring 1, a transmission structure and a lock core 5. The transmission structure includes a lock disc 7, two lock covers 2 and lock posts 6. The lock disc 7 is located between the two lock covers 2. The lock disc 7 and the two lock covers 2 form an I-shaped structure, and threaded holes 4 are provided on both the lock disc 7 and the two lock covers 2. A bolt 3 is threadedly connected to the inner cavity of the threaded hole 4. The two lock covers 2 are connected to the lock disc 7 through the bolt 3. Through the setting of the bolt 3, the lock disc 7 and the two lock covers 2 can form an integral body.

[0021] Lock post grooves 8 are evenly provided on the inner wall of the lock disc 7. The lock disc 7 is of a convex structure. The lock disc 7 includes an inner ring and an outer ring. In some embodiments of the present application, the outer diameter of the outer ring is the same as the outer diameter of the lock cover 2. The inner ring is evenly provided with a first accommodating groove, and the inner wall of the outer ring is provided with a second accommodating groove. The first accommodating groove and the second accommodating groove form the lock post groove 8. A lock post 6 is movably connected to the inner cavity of the lock post groove 8, and the difference between the outer diameter and the inner diameter of the inner ring is smaller than the diameter of the lock post 6. The distance value between the inner wall of the second accommodating groove and the inner wall of the inner ring is greater than the diameter of the lock post 6. When the lock post 6 is only located in the inner cavity of the first accommodating groove, a part of the lock post 6 is located outside the first accommodating groove. When the lock post 6 is located in the inner cavity of the second accommodating groove, the lock post 6 is completely hidden in the lock post groove 8. The sizes of the lock disc 7, the accommodating groove and the lock post 6 can all be set according to requirements and are not limited here. There are at least two lock post grooves 8.

[0022] The outer ring of the lock disc 7 is movably sleeved with a lock ring 1. The outer diameter of the inner ring is adapted to the inner diameter of the lock ring 1, and a rolling component is provided on the outer side wall of the lock disc 7. The lock disc 7 contacts the lock ring 1 through a ball component. The rolling component can be a thrust ball bearing or other bearings. When the lock disc 7 and the lock ring 1 rotate relative to each other, the friction between the relative surfaces is reduced. Fixing holes are evenly provided on the outer ring of the lock ring 1, and the distance between the fixing holes and the axis of the lock ring 1 is greater than the outer diameters of both the lock cover 2 and the outer ring. Through the setting of the fixing holes, the position of the lock ring 1 can be fixed by using screws adapted to the fixing holes. The fixing holes are evenly provided around the lock ring 1, which can reduce the acting force brought during braking and evenly disperse it on the lock ring. And when a certain screw is damaged, the device can still continue to work, improving the reliability of the device during use. The size of the lock ring 1 can be set according to requirements and is not limited here.

[0023] The lock core 5 is located in the inner cavity of the lock disk 7, and the outer side wall of the lock core 5 is provided with a sharp corner protruding outward, which contacts the inner wall of the lock disk 7 and is located between two adjacent lock columns 6. Through the setting of the sharp corner, the lock column 6 can limit the lock core 5, and when the lock core 5 rotates under the action of external force, the lock core 5 can squeeze the lock column 6 until the lock column 6 is tightly fitted with the inner wall of the lock ring 1, and the friction between the lock column 6 and the lock ring 1 can prevent the lock core 5 from continuing to rotate, so that the device can realize the self-locking braking function.

[0024] The lock core 5 has no fixed shape, and in most cases a hexagon is used. It can be designed as other polygons according to the usage conditions, such as a triangle, a quadrilateral, a pentagon, etc. A through hole is provided in the middle of the lock cover 2 to match the inner wall of the lock core 5, and the through hole is used to facilitate the fixing of the device input end and the lock core 5.

[0025] When in use, the device can be made into different sizes according to the needs of the equipment, and can also be installed inside the motor or on various equipment that requires self-locking rotation.

[0026] To sum up, when the two-way self-locking brake device is in use, the lock ring 1 is in a fixed state, and the lock ring 1 can be installed on the fixed bracket between the motor and the equipment using screws adapted to the fixing holes. A fixed bracket can also be provided on the motor and the equipment for installing the lock ring 1, and the lock cover 2 is fixedly connected to the power output shaft of the driving element (such as fixing the lock cover 2 to the coupling or shaft of the motor), and the lock core 5 is connected to the input end of the equipment. When the driving element is working, the driving unit drives the lock cover 2 to rotate, and the lock cover 2 drives the lock disk 7 to rotate through the bolt 3, and the lock disk 7 drives the lock core 5 to rotate through the lock column 6, thereby realizing the rotation of the input end of the equipment. When a self-locking brake is required, the driving element stops rotating. For example, when the equipment suddenly reverses and slips, the sharp corner of the lock core 5 connected to the input end of the equipment will press against the lock column 6 and squeeze the lock column 6 until the lock column 6 fits tightly against the inner wall of the lock ring 1. The friction between the lock column 6 and the lock ring 1 enables the device to achieve a self-locking brake function, and the device can achieve two-way self-locking brakes, avoiding the phenomenon of the motor stator circuit burning out due to the motor rotating due to the slipping of the equipment and the injury and damage to people and property caused by the lack of protection when slipping.

[0027] All the standard parts used in this utility model can be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the attached drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A two-way self-locking braking device, comprising a lock ring (1), a transmission structure and a lock core (5), characterized in that: The transmission structure includes a lock disc (7), two lock covers (2) and a lock post (6). The lock disc (7) is located between the two lock covers (2). The lock disc (7) and the two lock covers (2) form an I-shaped structure, and the two lock covers (2) are connected to the lock disc (7) by bolts (3). The outer ring of the lock disc (7) is movably sleeved with a lock ring (1). The inner wall of the lock disc (7) is evenly provided with lock post grooves (8). The inner cavity of the lock post groove (8) is movably connected with a lock post (6). The lock core (5) is located in the inner cavity of the lock disc (7). The outer side wall of the lock core (5) is provided with a sharp corner protruding outward. The sharp corner contacts the inner wall of the lock disc (7), and the sharp corner is located between two adjacent lock posts (6).

2. The bi-directional self-locking braking device according to claim 1, characterized in that: The lock disc (7) is of a convex structure. The lock disc (7) includes an inner ring and an outer ring. The outer diameter of the inner ring is adapted to the inner diameter of the lock ring (1). The outer diameter of the outer ring is larger than the outer diameter of the inner ring.

3. The two-way self-locking braking device according to claim 2, characterized in that: The difference between the outer diameter and the inner diameter of the inner ring is smaller than the diameter of the lock post (6). The inner ring is evenly provided with a first accommodating groove. The inner wall of the outer ring is provided with a second accommodating groove adapted to the lock post (6). The first accommodating groove and the second accommodating groove form the lock post groove (8), and the distance value between the inner wall of the second accommodating groove and the inner wall of the inner ring is larger than the diameter of the lock post (6).

4. The two-way self-locking braking device according to claim 2, wherein: Threaded holes (4) are provided on both the lock cover (2) and the inner ring. The bolt (3) is adapted to the threaded hole (4).

5. A two-way self-locking braking device according to claim 1, characterized in that: A rolling component is provided on the outer side wall of the lock disc (7). The lock disc (7) contacts the lock ring (1) through the ball component.

6. The two-way self-locking brake device according to claim 2, characterized in that: A through hole adapted to the inner wall of the lock core (5) is provided in the middle of the lock cover (2). Fixing holes are evenly provided on the outer ring of the lock ring (1), and the distance between the fixing hole and the axis of the lock ring (1) is larger than the outer diameter of the lock cover (2).

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