A universal hand release brake

Abstract

The utility model relates to brake technology field provides a general type manual release brake, including the magnetic yoke, movable plate, rotor and flange that set gradually, the magnetic yoke is fixedly connected with the flange, and the magnetic yoke end face is equipped with the elastic member for movable plate to add pressure, still include handle and steel ball, one side of handle is equipped with support axle, and the inner hole of support axle and magnetic yoke is connected through bearing, and handle is connected with movable plate through a plurality of fastening screw rod, and is equipped with the arc -shaped hole of fastening screw rod through on handle, handle and the corresponding position of magnetic yoke are equipped with recess, and steel ball is located in recess. The utility model makes when adding manual release structure to original brake, need not change the self structure of magnetic yoke, and the original structure of brake can be retained, can be used with the brake of this kind of magnetic yoke with inner hole structure.

Description

Technical Field

[0001] This utility model relates to the field of brake technology, and more specifically, to a universal manual release brake. Background Technology

[0002] Electromagnetic brakes are mostly power-off brakes. Their working principle is as follows: When the power is off, the moving plate is pressed against the rotor under the action of the spring, forming frictional resistance on the rotor, thereby achieving rotor braking; when the power is on, the magnetic force generated by the yoke overcomes the spring force and attracts the moving plate, causing the moving plate to separate from the rotor, thereby achieving unlocking.

[0003] In some electromagnetic brakes, a release handle is provided for manual unlocking in order to still unlock the brake during power outages. However, existing manual release structures require changes to the structure of some parts in the brake. For example, in the prior art with publication number "CN206918129U", a boss needs to be set on the end face of the magnetic yoke to accommodate the handle. This renders the original magnetic yoke unusable, making it difficult to add a release handle to the existing brake. Utility Model Content

[0004] The purpose of this invention is to provide a universal manual release brake to overcome the aforementioned deficiencies of the prior art.

[0005] This utility model is achieved through the following technical solution:

[0006] A universal manual release brake includes a magnetic yoke, a moving plate, a rotor, and a flange arranged in sequence. The magnetic yoke is fixedly connected to the flange, and the end face of the magnetic yoke is provided with an elastic element that applies pressure to the moving plate. It also includes a handle and a steel ball. A support shaft is provided on one side of the handle, and the support shaft is connected to the inner hole of the magnetic yoke through a bearing. The handle is connected to the moving plate by a number of fastening screws, and the handle is provided with an arc-shaped hole for the fastening screws to pass through. A groove is provided at the corresponding position of the handle and the magnetic yoke, and the steel ball is located in the groove.

[0007] Optionally, multiple grooves are evenly spaced along the circumferential direction.

[0008] Optionally, the magnetic yoke is connected to the flange by connecting screws, and the connecting screws are fitted with positioning sleeves to limit the distance between the magnetic yoke and the flange.

[0009] Optionally, the handle is provided with a clearance through hole corresponding to the position of the connecting screw, and the diameter of the clearance through hole is larger than the head diameter of the connecting screw.

[0010] Optionally, the elastic element is a cylindrical spring, and the end face of the magnetic yoke is provided with a blind hole for accommodating the cylindrical spring.

[0011] Optionally, friction plates are provided on both sides of the rotor.

[0012] Optionally, a dust cover is provided between the flange and the magnetic yoke to seal the gap between them.

[0013] Optionally, a locking screw is connected to the outside of the handle, and a locking hole is provided on the magnetic yoke. After the brake is unlocked by rotating the handle, the locking hole can be aligned with the locking screw.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: In this utility model, a support shaft is provided on one side of the handle, and the support shaft is connected to the inner hole of the magnetic yoke itself through a bearing. This arrangement allows the addition of a manual release structure to the original brake without changing the structure of the magnetic yoke itself, and the original brake structure can be retained, making it suitable for brakes with an inner hole structure on the magnetic yoke. At the same time, the handle is directly connected to the moving plate through a fastening screw, and an arc-shaped hole is provided on the handle for the fastening screw to pass through. This arrangement eliminates the need for other support structures on the handle, simplifying the structure. Attached Figure Description

[0015] Figure 1 A front view of a general-purpose manual release brake provided in Embodiment 1;

[0016] Figure 2 for Figure 1 AA section view in the middle;

[0017] Figure 3 A front view of a general-purpose manual release brake provided in Embodiment 2;

[0018] Figure 4 for Figure 3 BB section view in the middle;

[0019] Reference numerals: 1-Magnetic yoke, 2-Moving plate, 3-Rotor, 4-Flange, 5-Elastic element, 6-Handle, 601-Allowing through hole, 602-Arc hole, 7-Fasting screw, 8-Steel ball, 9-Connecting screw, 10-Positioning sleeve, 11-Coil, 12-Dust cover, 13-Locking screw. Detailed Implementation

[0020] Example 1

[0021] refer to Figure 1 and Figure 2 A general-purpose manual release brake includes a magnetic yoke 1, a moving plate 2, a rotor 3, a flange 4, a handle 6, and a steel ball 8 arranged in sequence. Those skilled in the art will understand that a coil 11 is installed inside the magnetic yoke 1 to generate electromagnetic force when energized.

[0022] The magnetic yoke 1 is fixedly connected to the flange 4. The end face of the magnetic yoke 1 is provided with an elastic element 5 that applies pressure to the moving plate 2. A support shaft is provided on one side of the handle 6. The support shaft is connected to the inner hole of the magnetic yoke 1 through a bearing. This arrangement allows the magnetic yoke 1 to retain its original structure without changing it when adding a manual release structure to the original brake. This makes it suitable for brakes with an inner hole structure.

[0023] The handle 6 is connected to the moving plate 2 by several fastening screws 7 (not shown). The handle 6 is provided with an arc-shaped hole 602 for the fastening screws 7 to pass through. It is easy to understand that the moving plate 2 is provided with a threaded hole (not shown) for connecting the fastening screws 7. The magnetic yoke 1 should also be provided with a through hole (not shown) to avoid the fastening screws 7. After the fastening screws 7 pass through the arc-shaped hole 602 and the through hole on the magnetic yoke 1 in sequence, they are connected and fastened to the threaded hole on the moving plate 2 (the head of the fastening screw 7 is exposed on the outside of the handle 6), thereby fixing the axial relative position of the handle 6 and the moving plate 2.

[0024] The handle 6 has a groove corresponding to the position of the magnetic yoke 1, and the steel ball 8 is located in the groove. Since the hole for installing the fastening screw 7 on the handle 6 is an arc-shaped hole 602, the handle 6 can rotate (and the rotation range of the handle 6 is limited by the arc-shaped hole 602). When in use, rotating the handle 6 can make the steel ball 8 crawl out of the groove on the handle 6 or the magnetic yoke 1, push the handle 6 away from the magnetic yoke 1, thereby separating the moving plate 2 from the rotor 3, realizing the manual unlocking of the brake.

[0025] In this embodiment, the groove on the magnetic yoke 1 is made deeper, while the groove on the handle 6 is shallower. This design ensures that the steel ball 8 separates from the groove on the handle 6 when the handle 6 is rotated. In other embodiments, the groove on the magnetic yoke 1 can also be made shallower, while the groove on the handle 6 can be deeper. Furthermore, in this embodiment, multiple grooves are evenly spaced along the circumference to ensure uniform force distribution on the handle 6 when it is rotated. The specific number of grooves is not limited; two, three, or other numbers are all acceptable.

[0026] The magnetic yoke 1 and the flange 4 are connected by connecting screws 9. A positioning sleeve 10 is fitted onto the connecting screw 9 to limit the distance between the magnetic yoke 1 and the flange 4. It is easy to understand that, based on this, the moving plate 2 has a through hole for the positioning sleeve 10 to pass through, facilitating radial positioning of the moving plate 2. Furthermore, the handle 6 has a clearance through hole 601 corresponding to the position of the connecting screw 9. The diameter of the clearance through hole 601 is larger than the head diameter of the connecting screw 9. This design facilitates the installation and removal of the connecting screw 9 without disassembling the handle 6, simplifying later maintenance and repair of the brake.

[0027] As an alternative, in this embodiment, the elastic element 5 that applies pressure to the moving plate 2 is a cylindrical spring. Based on this, the end face of the magnetic yoke 1 is provided with a blind hole for accommodating the cylindrical spring, which facilitates the positioning of the cylindrical spring.

[0028] In this embodiment, friction plates are provided on both sides of the rotor 3 to improve friction and ensure braking torque. The friction plates are preferably fixed by adhesive bonding.

[0029] In this embodiment, a dust cover 12 is provided between the flange 4 and the magnetic yoke 1 to seal the gap between them and provide dust protection. Alternatively, the dust cover 12 can be installed as follows: both ends of the dust cover 12 have annular locking blocks, and the outer sides of the flange 4 and the magnetic yoke 1 have annular grooves that mate with the locking blocks. It is easy to understand that the dust cover 12 is typically made of plastic and has a certain degree of elasticity; installation is achieved by simply inserting the annular locking blocks of the dust cover 12 into the annular grooves. In other embodiments, the dust cover 12 can also be installed in other ways, such as by connecting and fastening it to the flange 4 and the magnetic yoke 1 with screws respectively.

[0030] Example 2

[0031] refer to Figure 3 and Figure 4 This embodiment further optimizes upon embodiment 1. Specifically, in this embodiment, a locking screw 13 is connected to the outside of the handle 6, and a locking hole is provided on the magnetic yoke 1. After the handle 6 is rotated to unlock the brake, the locking hole (not shown) can be aligned with the locking screw 13. In this way, after the handle 6 is rotated to unlock the brake, the locking screw 13 is turned to insert it into the locking hole, which facilitates fixing the position of the handle 6 and avoids the phenomenon of the handle 6 resetting due to vibration or other factors, thus ensuring the reliability of manual unlocking.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A universal manual release brake, comprising a magnetic yoke, a moving plate, a rotor, and a flange arranged sequentially, wherein the magnetic yoke is fixedly connected to the flange, and an elastic element is provided on the end face of the magnetic yoke to apply pressure to the moving plate; further comprising a handle and a steel ball, characterized in that, A support shaft is provided on one side of the handle, and the support shaft is connected to the inner hole of the magnetic yoke through a bearing; the handle is connected to the moving plate through several fastening screws, and the handle is provided with an arc-shaped hole for the fastening screws to pass through; the handle and the magnetic yoke are provided with grooves at corresponding positions, and the steel balls are located in the grooves.

2. The universal manual release brake according to claim 1, characterized in that, The grooves are evenly spaced along the circumference.

3. The universal manual release brake according to claim 1, characterized in that, The magnetic yoke is connected to the flange by connecting screws, and a positioning sleeve is fitted on the connecting screws to limit the distance between the magnetic yoke and the flange.

4. The universal manual release brake according to claim 3, characterized in that, The handle is provided with a clearance through hole corresponding to the position of the connecting screw, and the diameter of the clearance through hole is larger than the head diameter of the connecting screw.

5. The universal manual release brake according to claim 1, characterized in that, The elastic element is a cylindrical spring, and the end face of the magnetic yoke is provided with a blind hole for accommodating the cylindrical spring.

6. The universal manual release brake according to claim 1, characterized in that, Friction plates are provided on both sides of the rotor.

7. The universal manual release brake according to claim 1, characterized in that, A dust cover is provided between the flange and the magnetic yoke to seal the gap between them.

8. The universal manual release brake according to any one of claims 1-7, characterized in that, A locking screw is connected to the outside of the handle, and a locking hole is provided on the magnetic yoke. After the brake is unlocked by rotating the handle, the locking hole can be aligned with the locking screw.

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