A brake with manual release

Abstract

The utility model relates to the technical field of brake, provide a kind of brake with manual release, including release structure and the stator, moving plate, rotor and flange arranged in sequence, stator is equipped with recess, moving plate and rotor are located recess inside, flange stator fixed connection, release structure includes release column and operating ring arm, release column rotation setting in the side wall of recess and symmetrically arranged two, release column outer end is connected with operating ring arm, to make release column rotate by rotating operating ring arm;Release column side is equipped with avoiding plane, when avoiding plane is opposite with moving plate, moving plate can normally compress tight rotor, when the arc surface of release column extrudes moving plate, realize to release brake.The utility model compared with prior art release structure, only release column and operating ring arm two parts, overall structure is greatly simplified, reduces installation difficulty and later maintenance difficulty.

Description

Technical Field

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

[0002] Electromagnetic brakes, as core safety control components in transmission systems, are widely used in automotive parking, industrial motor braking, robot joint locking, and other fields. For power-off electromagnetic brakes, in order to ensure that the brake can be released in emergency situations (power failure or malfunction), a manual release structure is usually set on the brake to allow the brake to switch to the released state without power being supplied.

[0003] In the prior art, there are various manual release structures. For example, patent documents with publication numbers "CN119617036A", "CN219570699U", "CN220101873U", and "CN222760185U" all disclose electromagnetic brakes with manual release. The manual release structure in "CN119617036A" requires multiple supporting components such as a release plate, limit bolts, and compression springs; the manual release structure in "CN219570699U" requires assembly from multiple components such as a force transmission screw, connecting sleeve, ring, and locking screws; and "CN220101873U"... Manual release mechanisms require multiple arc-shaped grooves on the handle to mate with the pull rods. Furthermore, to reduce wear between the ball bearings and the drive grooves, additional lubrication components such as oil reservoirs, contact rods, and sponges are necessary. The "CN222760185U" manual release mechanism requires a release pin (including a multi-step structure), a pressure cap, a gasket, a first spring, and a second spring. It is evident that existing manual release mechanisms share a common drawback: a large number of parts and a redundant and complex overall structure, increasing installation and maintenance difficulty. Utility Model Content

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

[0005] This utility model is achieved through the following technical solution: A brake with manual release includes a release structure and a stator, a moving plate, a rotor, and a flange arranged in sequence. The stator has a groove, and the moving plate and rotor are located inside the groove. The flange is fixedly connected to the stator. The release structure includes a release column and an operating ring arm. Two release columns are rotatably disposed on the side wall of the groove and are symmetrically arranged. The outer end of the release column is connected to the operating ring arm so that the release column can be rotated by rotating the operating ring arm. A clearance plane is provided on one side of the release column. When the clearance plane is opposite to the moving plate, the moving plate can normally press the rotor. When the arc surface of the release column presses against the moving plate, the brake is released.

[0006] Optionally, the operating ring arm is arc-shaped and has connecting through holes at both ends, the outer end of the release post is engaged with the connecting through holes, and the operating ring arm and the release post are connected by screws.

[0007] Optionally, the outer end of the release column has a rectangular cross-section perpendicular to the axis.

[0008] Optionally, the flange may have a limiting element on its side edge for restricting the position of the operating ring arm.

[0009] Optionally, the flange is attached to the stator and connected by connecting screws.

[0010] Optionally, the movable plate is provided with a guide hole that mates with the smooth rod section on the connecting screw.

[0011] Optionally, a first sealing ring is provided between the flange and the stator.

[0012] Optionally, a second sealing ring is provided between the release post and the sidewall of the groove.

[0013] The technical solution of this utility model has at least the following advantages and beneficial effects: In this utility model, the release column can be rotated by rotating the operating ring arm. When the release column rotates to the point where the clearance plane is opposite to the moving plate, the moving plate can normally press the rotor to form a brake; when the release column rotates to the point where the arc surface presses against the moving plate, it moves the moving plate away from the rotor (towards the stator), realizing manual release (i.e., releasing the brake). Compared with the existing release structure, only two parts, the release column and the operating ring arm, are used, greatly simplifying the overall structure and reducing the difficulty of installation and subsequent maintenance. Attached Figure Description

[0014] Figure 1 A schematic diagram of a brake with manual release provided by this utility model; Figure 2 A front view of a brake with manual release provided by this utility model; Figure 3 for Figure 2 AA section view in the middle; Figure 4 for Figure 3 Enlarged view of point C in the image; Figure 5 This is an enlarged structural schematic diagram of the release column; Figure 6 for Figure 2 BB section view Reference numerals: 1-Stator, 101-Magnetic yoke, 102-Coil, 2-Moving plate, 3-Rotor, 4-Flange, 5-Compression spring, 6-Release column, 601-Allowing plane, 7-Operating ring arm, 8-Limiting component, 9-Connecting screw. Detailed Implementation

[0015] refer to Figures 1-4 A manually released brake includes a release structure and a stator 1, a moving plate 2, a rotor 3, and a flange 4 arranged sequentially. The stator 1 has a groove, and the moving plate 2 and rotor 3 are located inside the groove. The flange 4 is fixedly connected to the stator 1. Those skilled in the art should understand that the stator 1 is composed of a magnetic yoke 101 and a coil 102 (hereinafter, "stator 1" refers to the magnetic yoke 101 unless otherwise specified). A pressure spring 5 should also be provided between the stator 1 and the moving plate 2, and the pressure spring 5 can be installed in a blind hole on the side of the stator 1 closest to the moving plate 2. In practical applications, in the de-energized state, under the action of the pressure spring 5, the moving plate 2 presses against the rotor 3, forming a brake; when the coil 102 is energized, the stator 1 attracts the moving plate 2, causing the moving plate 2 to move away from the rotor 3, thereby releasing the brake.

[0016] The release structure includes a release column 6 and an operating ring arm 7. Two release columns 6 are symmetrically arranged and rotatably mounted on the side wall of the groove. The outer end of the release column 6 is connected to the operating ring arm 7, and the release column 6 can be rotated by rotating the operating ring arm 7. One side of the release column 6 is provided with a clearance plane 601, which is a flattened surface formed by cutting one side of the release column 6 (see reference). Figure 5 When the clearance plane 601 is opposite to the moving plate 2, the flat surface can avoid the moving plate 2, ensuring that the moving plate 2 can properly press the rotor 3; when the release column 6 rotates to the arc surface to press the moving plate 2, it moves the moving plate 2 away from the rotor 3 (i.e., closer to the stator 1), realizing manual release (i.e., releasing the brake). Compared with the existing release structure, only two parts, the release column 6 and the operating ring arm 7, are used, greatly simplifying the overall structure and reducing the difficulty of installation and subsequent maintenance.

[0017] It is worth noting that "when the avoidance plane 601 is opposite to the moving plate 2" can be understood as the avoidance plane 601 being adjacent to and parallel to the moving plate 2, or it can be understood as the avoidance plane 601 being adjacent to the moving plate 2 but at a slight angle (no point of the avoidance plane 601 is in contact with the moving plate 2).

[0018] In this embodiment, a limiting member 8 is provided on the side edge of the flange 4 to limit the position of the operating ring arm 7. The specific structure of the limiting member 8 is not limited, as long as it can abut against the operating ring arm 7 and limit its position. The limiting member 8 can be connected and fixed to the flange 4 by means of adhesive, threaded connection, screw connection, etc. It should be understood that when the operating ring arm 7 abuts against the limiting member 8, the clearance plane 601 of the release column 6 is opposite to the moving plate 2, that is, at this time it is in the manual release state. This setting makes it easier to rotate the operating ring arm 7 into place and realize quick manual release.

[0019] In this embodiment, the operating ring arm 7 and the release post 6 are connected as follows: the operating ring arm 7 is arc-shaped with connecting through holes at both ends. The outer end of the release post 6 mates with the connecting through holes, and the operating ring arm 7 and the release post 6 are connected by screws. After connection, it is ensured that there will be no relative rotation between the operating ring arm 7 and the release post 6. Furthermore, the cross-section of the outer end of the release post 6 perpendicular to the axis is rectangular. Correspondingly, the cross-section of the connecting through hole on the operating ring arm 7 perpendicular to the axis is also rectangular. This arrangement better restricts the relative rotation between the operating ring arm 7 and the release post 6. It should be understood that in other embodiments, the operating ring arm 7 and the release post 6 can of course be connected in other ways, such as bonding, tightening connection, etc.

[0020] In this embodiment, flange 4 and stator 1 are attached together and connected by connecting screws 9. Based on this, refer to Figure 6 The movable plate 2 is provided with a guide hole that mates with the smooth rod section on the connecting screw 9 (those skilled in the art should understand that when the screw is long, the section of the rod near the head is usually designed as a smooth rod), that is, the smooth rod section of the connecting screw 9 serves as a guide for the movement of the movable plate 2.

[0021] Based on the above, a first sealing ring is provided between flange 4 and stator 1 to ensure the sealing between flange 4 and stator 1 and improve the protection of the brake. Specifically, in this embodiment, a first sealing ring groove is provided on the end face of stator 1, and the first sealing ring is embedded in the first sealing ring groove. In other embodiments, the first sealing ring groove can also be provided on the end face of flange 4. Further, a second sealing ring is provided between release pin 6 and the side wall of the groove to ensure the sealing at the rotation point of release pin 6 and further improve the protection of the brake. Specifically, in this embodiment, a second sealing ring groove is provided on the side wall of release pin 6, and the second sealing ring is embedded in the second sealing ring groove.

[0022] 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 brake with manual release, comprising a release structure and a stator, a moving plate, a rotor, and a flange arranged sequentially, wherein the stator has a groove, the moving plate and the rotor are located inside the groove, and the flange and stator are fixedly connected, characterized in that, The release structure includes a release column and an operating ring arm. Two release columns are rotatably mounted on the side wall of the groove and are arranged symmetrically. The outer end of the release column is connected to the operating ring arm so that the release column can be rotated by rotating the operating ring arm. A clearance plane is provided on one side of the release column. When the clearance plane is opposite to the moving plate, the moving plate can normally press the rotor. When the arc surface of the release column squeezes the moving plate, the brake is released.

2. The brake with manual release according to claim 1, characterized in that, The operating ring arm is arc-shaped and has connecting through holes at both ends. The outer end of the release post is engaged with the connecting through holes, and the operating ring arm and the release post are connected by screws.

3. The brake with manual release according to claim 2, characterized in that, The outer end of the release column has a rectangular cross-section perpendicular to the axis.

4. The brake with manual release according to claim 1, characterized in that, The flange has a limiting element on its side edge to restrict the position of the operating ring arm.

5. The brake with manual release according to any one of claims 1-4, characterized in that, The flange is attached to the stator and connected by connecting screws.

6. The brake with manual release according to claim 5, characterized in that, The moving plate is provided with a guide hole that mates with the smooth rod section on the connecting screw.

7. The brake with manual release according to claim 5, characterized in that, A first sealing ring is provided between the flange and the stator.

8. The brake with manual release according to claim 5, characterized in that, A second sealing ring is provided between the release column and the side wall of the groove.

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