Electric brake with overload protection function

Abstract

The utility model belongs to the field of electric brakes, and particularly relates to an electric brake with overload protection, which comprises a shell, a connecting shaft is mounted in the shell through a bearing, a magnetic disc is fixedly connected to the upper end of the connecting shaft, a brake disc is in contact with the upper end of the magnetic disc, and a stabilizing mechanism is arranged on the shell. And the lower part of the outer side of the connecting shaft is fixedly connected with a gear. The tooth frame, the clamping strip, the movable frame and other structures are additionally arranged on the shell, the tooth frame can be pushed to be clamped in a tooth groove of the gear through the elastic force of the first spring in the using process, the magnetic disc can be limited, when the rotating force of the magnetic disc is larger than the elastic force of the first spring, the tooth frame can be pushed to be separated from the gear, and the magnetic disc is prevented from being damaged. Therefore, limiting of the gear and the magnetic disc can be relieved, friction between the magnetic disc and the brake disc is avoided, and the movable frame can be clamped to the outer side of the clamping strip, so that the tooth frame can be limited, and resetting of the tooth frame is avoided.

Description

Technical Field

[0001] This utility model relates to the field of electric brake technology, specifically to an electric brake with overload protection. Background Technology

[0002] An electric brake is a device that uses electrical energy to achieve braking or deceleration, widely used in vehicles, industrial equipment, elevators, wind power generation, and other fields. Depending on the working principle and application scenario, electric brakes can be divided into several types, the most common being a combination of a magnetic disc and a brake disc. However, in existing electric brake technology, if the braking resistance becomes overloaded during operation, it can easily cause relative rotation between the brake disc and the magnetic disc, resulting in friction. Prolonged friction can lead to overheating and demagnetization of the magnetic disc, causing brake damage. Furthermore, during brake disc operation, the brake disc is only connected to the shaft, leading to unstable rotation. After the magnetic disc is activated, the two are prone to misalignment, and this misalignment, when subjected to force, can easily damage the brake. Therefore, improvements to the existing technology are needed. Utility Model Content

[0003] The purpose of this invention is to provide an electric brake with overload protection, which solves the problems of electric brakes being prone to demagnetization and unstable brake disc rotation under overload.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electric brake with overload protection, comprising a housing, a connecting shaft mounted inside the housing via a bearing, a magnetic disk fixedly connected to the upper end of the connecting shaft, the upper end of the magnetic disk contacting a brake disc, a stabilizing mechanism provided on the housing, a gear fixedly connected to the lower outer side of the connecting shaft, a fixed frame fixedly connected to the top inner side of the housing, a movable frame slidably connected inside the fixed frame, a toothed plate fixedly connected to the end of the movable frame near the gear, a spring one provided on the outer side of the movable frame, a support frame fixedly installed at the lower end of the fixed frame, two symmetrically distributed guide pins slidably connected inside the support frame, a snap-fit ​​strip fixedly connected to the end of the guide pins near the movable frame, and a spring two provided on the outer side of the guide pins.

[0005] Preferably, a coupling seat is fixedly installed on the upper end of the brake disc, the magnetic disc contacts the inner wall of the housing, and the coupling seat is used to install the rotating shaft of the device.

[0006] Preferably, one end of the spring is fixedly connected to the fixing frame, and the other end of the spring is fixedly connected to the toothed plate. The spring can support the toothed plate with its elastic force.

[0007] Preferably, the toothed plate engages with the tooth groove of the gear, and the engaging strip engages with the movable frame clamping machine. The toothed plate can limit the connection shaft and magnetic disk through the gear.

[0008] Preferably, one end of the second spring is fixedly connected to the support frame, and the other end of the second spring is fixedly connected to the snap-fit ​​strip. The second spring can support the snap-fit ​​strip through its elastic force.

[0009] Preferably, a limiting frame is slidably connected to the outer side of the toothed plate, and the limiting frame is fixedly connected to the outer shell. The limiting frame can guide the movement of the toothed plate.

[0010] Preferably, the stabilizing mechanism includes a mounting ring, which is in contact with the outer side of the housing. A support ring is mounted inside the mounting ring via a bearing. The support ring is in contact with the brake disc. A screw is movably connected inside the mounting ring, and the screw is threadedly connected to the housing. The support ring can support the brake disc, making the rotation of the brake disc more stable.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model adds a toothed frame, a snap-fit ​​strip, and a movable frame to the outer shell. During use, the toothed frame can be pushed by the elastic force of spring one to snap into the tooth groove of the gear, thus limiting the magnetic disk. When the rotational force of the magnetic disk is greater than the elastic force of spring one, the toothed frame can be pushed to disengage from the gear, thereby releasing the limitation on the gear and the magnetic disk and avoiding friction between the magnetic disk and the brake disc. Furthermore, the movable frame can snap into the outside of the snap-fit ​​strip to limit the toothed frame and prevent it from resetting.

[0013] 2. This utility model adds a mounting ring, a support ring, and screws to the outer shell. During use, the mounting ring can be installed on the outside of the brake disc using screws, and the brake disc can be supported by the rotating support ring, thereby effectively improving the stability of the brake disc. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 For the present utility model Figure 1 Stereoscopic section Figure 1 ;

[0016] Figure 3 For the present utility model Figure 1 Stereoscopic section Figure 2 ;

[0017] Figure 4For the present utility model Figure 2 A 3D enlarged view of the mounting bracket;

[0018] Figure 5 For the present utility model Figure 3 Enlarged view of the structure of part A.

[0019] In the diagram: 1. Outer shell; 2. Connecting shaft; 3. Magnetic disk; 4. Brake disk; 5. Stabilizing mechanism; 6. Coupling seat; 7. Gear; 8. Fixed frame; 9. Moving frame; 10. Toothed plate; 11. Spring 1; 12. Limiting frame; 13. Support frame; 14. Guide rod pin; 15. Snap-fit ​​strip; 16. Spring 2; 51. Mounting ring; 52. Support ring; 53. Screw. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 An electric brake with overload protection includes a housing 1. A connecting shaft 2 is mounted inside the housing 1 via a bearing. A magnetic disk 3 is fixedly connected to the upper end of the connecting shaft 2. A brake disc 4 is contacted at the upper end of the magnetic disk 3. A stabilizing mechanism 5 is provided on the housing 1. A gear 7 is fixedly connected to the lower outer side of the connecting shaft 2. A fixed frame 8 is fixedly connected to the top inner side of the housing 1. A movable frame 9 is slidably connected inside the fixed frame 8. A toothed plate 10 is fixedly connected to the end of the movable frame 9 near the gear 7. A spring 11 is provided on the outer side of the movable frame 9. A support frame 13 is fixedly installed at the lower end of the fixed frame 8. Two symmetrically distributed guide rod pins 14 are slidably connected inside the support frame 13. A snap-fit ​​strip 15 is fixedly connected to the end of the guide rod pin 14 near the movable frame 9. A spring 16 is provided on the outer side of the guide rod pin 14.

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5A coupling seat 6 is fixedly installed on the upper end of the brake disc 4. The magnetic disk 3 is in contact with the inner wall of the outer shell 1. The coupling seat 6 is used to install the rotating shaft of the equipment. One end of the spring 11 is fixedly connected to the fixed frame 8, and the other end of the spring 11 is fixedly connected to the toothed plate 10. The spring 11 can support the toothed plate 10 through its elasticity. The toothed plate 10 is engaged with the tooth groove of the gear 7. The engaging strip 15 is engaged with the moving frame 9. The toothed plate 10 can limit the connection shaft 2 and the magnetic disk 3 through the gear 7. One end of the spring 2 16 is fixedly connected to the support frame 13, and the other end of the spring 2 16 is fixedly connected to the engaging strip 15. The spring 2 16 can support the engaging strip 15 through its elasticity. A limit frame 12 is slidably connected to the outer side of the toothed plate 10. The limit frame 12 is fixedly connected to the outer shell 1. The limit frame 12 can guide the movement of the toothed plate 10.

[0023] Please see Figure 1 , Figure 2 The stabilizing mechanism 5 includes a mounting ring 51. The mounting ring 51 is in contact with the outer side of the housing 1. A support ring 52 is mounted inside the mounting ring 51 via a bearing. The support ring 52 is in contact with the brake disc 4. A screw 53 is movably connected inside the mounting ring 51. The screw 53 is threadedly connected to the housing 1. The support ring 52 can support the brake disc 4, making the rotation of the brake disc 4 more stable.

[0024] The specific implementation process of this utility model is as follows: In use, the mounting ring 51 with the support ring 52 is installed on the outside of the outer shell 1 by screws 53. During the rotation of the brake disc 4, the support ring 52 and the guide ring 51 can effectively prevent the brake disc 4 from shifting. When braking is required, the magnetic disk 3 generates magnetic force and attracts the brake disc 4. When the rotational force of the brake disc 4 is greater than the magnetic force of the magnetic disk 3, the magnetic disk 3 transmits the rotational force to the gear 7 through the connecting shaft 2. The rotational force of the gear 7 pushes the tooth plate 10 to move closer to the fixed frame 8. When the pushing force is greater than the spring force... When the spring force of spring 11 is applied, gear 7 pushes toothed plate 10 to move. During the movement of toothed plate 10, it pushes moving frame 9 to move. Moving frame 9 can push locking strip 15 upward through the inclined surface of locking strip 15 and compress spring 16. When toothed plate 10 disengages from the tooth groove of gear 7, it can push moving frame 9 to disengage from locking strip 15. When locking strip 15 disengages from moving frame 9, spring 16 returns to its original position. Spring 16 can use its elasticity to drive locking strip 15 to engage with the outside of moving frame 9, thus blocking moving frame 9 and preventing spring 11 from returning to its original position, effectively protecting the brake.

[0025] 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. An electric brake with overload protection comprising a housing (1), characterized in that: The inside of the shell (1) is provided with a connecting shaft (2) installed through a bearing, the upper end of the connecting shaft (2) is fixedly connected with a magnetic disc (3), the upper end of the magnetic disc (3) is in contact with a brake disc (4), the shell (1) is provided with a stabilizing mechanism (5), the outer side of the lower part of the connecting shaft (2) is fixedly connected with a gear (7), the inner side of the top of the shell (1) is fixedly connected with a fixed frame (8), the inside of the fixed frame (8) is slidably connected with a moving frame (9), one end of the moving frame (9) close to the gear (7) is fixedly connected with a toothed plate (10), the outer side of the moving frame (9) is provided with a spring (11), the lower end of the fixed frame (8) is fixedly installed with a support frame (13), the inside of the support frame (13) is slidably connected with two symmetrically distributed guide rod nails (14), one end of the guide rod nail (14) close to the moving frame (9) is fixedly connected with a clamping strip (15), the outer side of the guide rod nail (14) is provided with a spring (16).

2. An electric brake with overload protection according to claim 1, characterized in that: The upper end of the brake disc (4) is fixedly installed with a connecting shaft seat (6), the magnetic disc (3) is in contact with the inner wall of the shell (1).

3. An electric brake with overload protection according to claim 1, characterized in that: One end of the spring (11) is fixedly connected with the fixed frame (8), the other end of the spring (11) is fixedly connected with the toothed plate (10).

4. An electric brake with overload protection according to claim 1, characterized in that: The toothed plate (10) is clamped with the gear groove of the gear (7), and the clamping strip (15) is clamped with the moving frame (9).

5. An electric brake with overload protection according to claim 1, characterized in that: One end of the spring (16) is fixedly connected with the support frame (13), and the other end of the spring (16) is fixedly connected with the clamping strip (15).

6. An electric brake with overload protection according to claim 1, characterized in that: The outer side of the toothed plate (10) is slidably connected with a limiting box (12), and the limiting box (12) is fixedly connected with the shell (1).

7. An electric brake with overload protection according to claim 1, characterized in that: The stabilizing mechanism (5) comprises a mounting ring (51), the outer side of the shell (1) is in contact with the mounting ring (51), the inside of the mounting ring (51) is provided with a support ring (52) installed through a bearing, the support ring (52) is in contact with the brake disc (4), the inside of the mounting ring (51) is movably connected with a screw (53), and the screw (53) is connected with the shell (1) through threads.

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