Quick-release locking structure of a hollow brake

Abstract

The utility model discloses a kind of quick-release type locking structures of hollow brake, it is related to hollow brake technical field, including shell, the shell both ends are provided with protective cover, rotor is provided in the shell, the both ends of the rotor are fixed with connecting ring, fixed slot is opened in the connecting ring, limit slot is opened in the rotor, and limit slot is communicated with fixed slot, connecting shaft is arranged in the connecting ring, the surface of the connecting shaft is fixed with limit block, the connecting shaft and limit block pass through fixed slot and are rotated and connected in limit slot, fixed bolt is arranged in the fixed slot.The utility model design structure is reasonable, it can realize efficient disassembly and assembly, maintenance is convenient, through the cooperation of connecting shaft, limit block, fixed slot and limit slot, it can be installed and locked by simple insertion and rotating action, greatly simplifies disassembly and assembly process, saves maintenance time, improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hollow brake technology, specifically a quick-release locking structure for a hollow brake. Background Technology

[0002] Hollow brakes, especially magnetic powder brakes, are important transmission control components widely used in industrial fields such as tension control, buffer start, overload protection, and continuous sliding. Their core principle is to generate a magnetic field through an excitation coil, which magnetizes the magnetic powder filling the space between the coil and the rotor, forming a magnetic powder chain to transmit torque.

[0003] Traditional hollow brakes typically use key connections with multiple bolts to secure the rotor to the connecting shaft, or rely on complex flanges and numerous fasteners. This structure has significant drawbacks: First, assembly and disassembly are cumbersome and time-consuming, requiring tools to tighten or loosen multiple bolts individually and precise angular positioning of the rotor, resulting in extremely low maintenance efficiency. Second, under long-term vibration or impact loads, the bolts are prone to loosening, posing a safety hazard due to decreased torque transmission reliability. Furthermore, traditional sealing designs are relatively simple, with insufficient sealing of the protective covers at both ends of the brake, allowing dust, moisture, and other impurities to penetrate and contaminate the magnetic powder, leading to brake performance degradation, abnormal wear of the friction pads, and even equipment jamming, severely impacting service life and operational stability in harsh environments.

[0004] Therefore, we provide a quick-release locking structure for hollow brakes to solve the problems of inconvenient disassembly and assembly, easy loosening, and poor sealing of traditional solutions. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a quick-release locking structure for a hollow brake.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a quick-release locking structure for a hollow brake, comprising a housing, protective covers at both ends of the housing, a rotor disposed within the housing, connecting rings fixed at both ends of the rotor, a fixing groove formed in the connecting rings, a limiting groove formed in the rotor and communicating with the fixing groove, a connecting shaft passing through the connecting rings, a limiting block fixed to the surface of the connecting shaft, the connecting shaft and the limiting block horizontally passing through the fixing groove and being engaged in the limiting groove by rotation, and a fixing pin passing through the fixing groove.

[0009] Furthermore, a sealing cap is fitted onto the surface of the connecting shaft, and the sealing cap is connected to the connecting ring by a thread.

[0010] Furthermore, the protective cover is fitted onto the surface of the connecting ring, and a sealing groove is provided on the side of the protective cover. A sealing ring is provided in the sealing groove, and the sealing ring is fixed to the sealing cover.

[0011] Furthermore, a spring is fixed to one end of the fixing pin near the rotor.

[0012] Furthermore, magnetic powder grooves are formed on the surfaces of the housing and the rotor, and a coil is disposed inside the housing.

[0013] Furthermore, a slot is formed on the surface of the rotor, and a retaining ring is engaged in the slot.

[0014] Furthermore, the protective cover, retaining ring, and housing surface are provided with threaded holes, and the threaded holes on the retaining ring and housing surface are semi-circular threaded holes.

[0015] Furthermore, the protective cover is threadedly connected to the housing by bolts passing through a washer disposed between the protective cover and the housing.

[0016] (III) Beneficial Effects:

[0017] Compared with existing technologies, the quick-release locking structure of this hollow brake has the following advantages:

[0018] I. This utility model achieves efficient disassembly and assembly and convenient maintenance. Through the cooperation of the connecting shaft, the limiting block, the fixing groove and the limiting groove, the rotor part can be installed and locked by simple insertion and rotation, which greatly simplifies the disassembly and assembly process, saves maintenance time and improves work efficiency.

[0019] Second, this utility model provides a stable locking force by using a fixed pin to press the connecting shaft under the continuous action of the spring, which effectively prevents the connecting shaft from loosening or coming off under vibration or impact conditions, thus ensuring the reliability and safety of the brake operation.

[0020] Third, this utility model adopts a multi-layer sealing design, such as threaded connection of the sealing cover and fixing of the sealing ring and the sealing cover, which constitutes an effective sealing system. It can significantly prevent external impurities such as dust and moisture from entering the housing and contaminating the magnetic powder, thus extending the service life of the brake and making it suitable for harsh working environments. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the shell and rotor in this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the protective cover in this utility model;

[0024] Figure 4 This is a cross-sectional view of the protective cover in this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the washer and bolt in this utility model;

[0026] Figure 6 This is a three-dimensional structural diagram of the shell in this utility model;

[0027] Figure 7 This is a cross-sectional view of the shell structure in this utility model;

[0028] Figure 8 This is a three-dimensional structural diagram of the retaining ring in this utility model;

[0029] Figure 9 This is a three-dimensional structural diagram of the rotor and retaining ring in this utility model;

[0030] Figure 10 This is a three-dimensional structural diagram of the rotor and connecting ring in this utility model;

[0031] Figure 11 This is a three-dimensional structural diagram of the connecting shaft and the fixing pin in this utility model;

[0032] Figure 12 This is an enlarged structural schematic diagram of the sealing cap in this utility model;

[0033] Figure 13 This is a cross-sectional schematic diagram of the rotor and connecting ring in this utility model;

[0034] Figure 14 This is a cross-sectional schematic diagram of the rotor in this utility model;

[0035] Figure 15 This is a front view of the rotor and connecting ring in this utility model;

[0036] Figure 16 This is a front view of the rotor in this utility model.

[0037] In the diagram: 1. Housing; 2. Protective cover; 3. Bolt; 4. Connecting shaft; 5. Sealing cover; 6. Threaded hole; 7. Rotor; 8. Sealing groove; 9. Washer; 10. Magnetic powder groove; 11. Coil; 12. Snap ring; 13. Connecting ring; 14. Snap groove; 15. Fixing pin; 16. Limiting block; 17. Sealing ring; 18. Fixing groove; 19. Limiting groove. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] like Figure 1-16 As shown, this utility model provides a technical solution: a quick-release locking structure for a hollow brake, including a housing 1, a coil 11 inside the housing 1, magnetic powder grooves 10 on the surfaces of the housing 1 and the rotor 7 for filling magnetic powder to achieve the braking function, and protective covers 2 at both ends of the housing 1. The protective covers 2 are threadedly connected to the housing 1 by bolts 3 passing through washers 9 set between the protective covers 2 and the housing 1, ensuring a stable connection and good sealing performance.

[0040] A rotor 7 is disposed in the housing 1, and a slot 14 is formed on the surface of the rotor 7. Figure 9 and Figure 10 As shown, a retaining ring 12 is engaged on the surface of the retaining groove 14 to axially fix the position of the rotor 7. Connecting rings 13 are fixed at both ends of the rotor 7, as shown. Figure 13 and Figure 14 As shown, a fixing groove 18 is provided in the connecting ring 13, and a limiting groove 19 is provided in the rotor 7. The limiting groove 19 is connected to the fixing groove 18 to realize the function of quick assembly and disassembly.

[0041] like Figure 11 As shown, a connecting shaft 4 is inserted through the connecting ring 13, and a limiting block 16 is fixed on the surface of the connecting shaft 4. After the connecting shaft 4 and the limiting block 16 pass horizontally through the fixing groove 18, they are rotated and snapped into the limiting groove 19, realizing the quick installation and locking of the rotor 7, which greatly improves the assembly efficiency. A fixing pin 15 is inserted through the fixing groove 18, and a spring is fixed at one end of the fixing pin 15 near the rotor 7, which can continuously apply a clamping force to prevent the connecting shaft 4 from loosening in a vibration environment and enhance the locking reliability.

[0042] A sealing cover 5 is fitted onto the surface of the connecting shaft 4, and the sealing cover 5 is connected to the connecting ring 13 by a thread to further improve the sealing performance. The protective cover 2 is fitted onto the surface of the connecting ring 13, and a sealing groove 8 is provided on the side of the protective cover 2. A sealing ring 17 is provided in the sealing groove 8, and the sealing ring 17 is fixed to the sealing cover 5 to form multiple sealing protection, effectively preventing external impurities from entering and extending the service life of the brake.

[0043] Furthermore, threaded holes 6 are provided on the surfaces of the protective cover 2, the retaining ring 12 and the housing 1, and the threaded holes 6 on the surfaces of the retaining ring 12 and the housing 1 are semi-circular threaded holes 6, which facilitates alignment and installation and improves the compactness of the structure. The quick-release structure has a reasonable overall design, is easy to disassemble and assemble, has good anti-loosening properties and environmental adaptability, and is suitable for braking applications under high-frequency maintenance and harsh working conditions.

[0044] Replacement principle: When using and replacing the overall brake, it is not necessary to remove the protective cover 2 to take out the rotor 7 for replacement. The operator can replace it by unscrewing the sealing cover 5. Since the sealing cover 5 and the connecting ring 13 are connected by threads, the sealing cover 5 will gradually come off the connecting ring 13 when the sealing cover 5 is unscrewed. After the sealing cover 5 is separated from the connecting ring 13, the fixing pin 15 in the fixing groove 18 will pop out by the spring force. Take out the fixing pin 15 and then rotate the connecting shaft 4. When the connecting shaft 4 is rotated, the limiting block 16 will move in the limiting groove 19. When the limiting block 16 moves to align with the fixing groove 18, take out the connecting shaft 4. Replace the new connecting shaft 4 by using the above reverse operation method.

[0045] When the rotor 7 needs to be replaced, first remove the connecting shaft 4 by the above operation. Then, the operator removes the protective cover 2 by tightening the bolts 3 on the surface of the protective cover 2. At the same time, remove the washer 9 between the protective cover 2 and the housing 1. Then, pull the rotor 7 with the connecting ring 13 to separate the rotor 7 from the housing 1. When replacing, snap the corresponding retaining ring 12 into the retaining groove 14 on the surface of the rotor 7. The installation can be carried out in the above direction.

[0046] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-release locking structure for a hollow brake, comprising a housing (1), with protective covers (2) at both ends of the housing (1), and a rotor (7) disposed within the housing (1), characterized in that: The rotor (7) has connecting rings (13) fixed at both ends. The connecting rings (13) have fixed grooves (18) and the rotor (7) has limiting grooves (19) connected to the fixed grooves (18). A connecting shaft (4) passes through the connecting rings (13). A limiting block (16) is fixed on the surface of the connecting shaft (4). The connecting shaft (4) and the limiting block (16) pass horizontally through the fixed grooves (18) and are rotated and snapped into the limiting grooves (19). A fixing pin (15) passes through the fixed grooves (18).

2. The quick-release locking structure for a hollow brake according to claim 1, characterized in that: The connecting shaft (4) is fitted with a sealing cap (5), and the sealing cap (5) and the connecting ring (13) are connected by threads.

3. The quick-release locking structure for a hollow brake according to claim 2, characterized in that: The protective cover (2) is fitted onto the surface of the connecting ring (13). A sealing groove (8) is provided on the side of the protective cover (2). A sealing ring (17) is provided in the sealing groove (8), and the sealing ring (17) is fixed to the sealing cover (5).

4. The quick-release locking structure for a hollow brake according to claim 1, characterized in that: A spring is fixed to one end of the fixing pin (15) near the rotor (7).

5. The quick-release locking structure for a hollow brake according to claim 1, characterized in that: The housing (1) and rotor (7) have magnetic powder grooves (10) on their surfaces, and a coil (11) is provided inside the housing (1).

6. The quick-release locking structure for a hollow brake according to claim 1, characterized in that: The rotor (7) has a slot (14) on its surface, and a retaining ring (12) is engaged on the surface of the slot (14).

7. The quick-release locking structure for a hollow brake according to claim 6, characterized in that: The protective cover (2), the retaining ring (12) and the housing (1) are provided with threaded holes (6), and the threaded holes (6) on the surfaces of the retaining ring (12) and the housing (1) are semi-circular threaded holes (6).

8. The quick-release locking structure for a hollow brake according to claim 7, characterized in that: The protective cover (2) is threadedly connected to the housing (1) by a bolt (3) passing through a washer (9) set between the protective cover (2) and the housing (1).

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