Brake with manual release for immersion in liquid

Abstract

The utility model relates to the technical field of brakes, in particular to a brake with manual release for immersion in liquid, which comprises a magnet yoke, an armature, a rotor and a flange, and further comprises a release rotating rod externally connected to the surface of the magnet yoke and rotationally connected with the magnet yoke, and the front end of the release rotating rod is clamped between the armature and the flange; the front end of the release rotating rod is provided with an eccentric raised head structure, and when the magnet yoke is powered off, the release rotating rod rotates to abut against and open a gap between the flange and the armature, so that the armature is separated from the rotor. The manual release device has a good manual release effect, and is simple in structure and not easy to block.

Description

Technical Field

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

[0002] An electromagnetic brake is a brake that uses electromagnetic force to generate (or release) braking. A power-off brake works by having its braking spring push out the armature to apply braking force when the yoke is de-energized, and then engaging the armature to release the brake when energized. However, in the event of a power failure, control system malfunction, or other emergency, the electromagnetic brake may not be able to be released through normal electrical control. A manual release device provides a backup operating method, allowing operators to release the brake promptly, preventing potential damage to equipment due to prolonged braking, or facilitating movement or adjustment of the equipment in emergency situations, ensuring the safety of personnel and equipment.

[0003] Existing manual release mechanisms typically consist of mechanical components such as handles, linkages, and springs. These components may experience wear, deformation, or jamming during prolonged use, affecting the proper functioning of the manual release mechanism. For example, wear on the linkage can increase transmission clearance, making operation less sensitive; fatigue deformation of the spring may result in insufficient elastic force to complete the release action. Therefore, it is essential to design a simpler, smoother, and more convenient manual release brake. Utility Model Content

[0004] The purpose of this invention is to provide a brake for immersion in liquid with manual release that is easier to operate and has a smoother release process that is less prone to jamming.

[0005] This utility model is achieved through the following technical solution: a brake for immersion in liquid with manual release, including a magnetic yoke, an armature, a rotor and a flange, and a release rod externally connected to and rotatably connected to the surface of the magnetic yoke. The front end of the release rod is engaged between the armature and the flange. The front end of the release rod is provided with an eccentric protrusion structure. When the magnetic yoke is de-energized, the release rod rotates to abut against and open the gap between the flange and the armature, thereby separating the contact between the armature and the rotor.

[0006] Furthermore, the release levers are symmetrically arranged on both sides of the magnetic yoke, and the tail ends of the two release levers are connected to forks.

[0007] Furthermore, the shift fork includes a U-shaped plate and a handle, the handle being located in the middle of the handle, and the front end of the U-shaped plate being detachably threaded to the release lever.

[0008] Furthermore, the magnetic yoke has a mounting sleeve on its side, the release lever passes through the mounting sleeve, and the inner hole of the mounting sleeve has a sealing element.

[0009] Furthermore, the minimum diameter of the eccentric protrusion structure is smaller than the thickness of the rotor.

[0010] Furthermore, the magnetic yoke is externally connected to a brake wire, and the outlet of the brake wire is provided with a gland, and the junction of the gland and the magnetic yoke is filled with silicone.

[0011] Furthermore, the eccentric protrusion structure employs a cam.

[0012] Furthermore, the eccentric protrusion structure employs an eccentric shaft.

[0013] The technical solution of this utility model has at least the following advantages and beneficial effects: This utility model sets an eccentric protrusion structure for the release lever, which is inserted into the gap between the armature and the flange. The release lever is rotated by manually pressing and moving the fork to provide a large torque, thereby widening the gap and releasing the braking contact between the armature and the rotor. The operation is simple and not easy to jam. Attached Figure Description

[0014] Figure 1 This is a front structural diagram of the manually released liquid immersion brake of this utility model.

[0015] Figure 2 for Figure 1 A cross-sectional view of point AA in the diagram;

[0016] Figure 3 for Figure 2 A magnified view of point B in the image;

[0017] Figure 4 This is a schematic diagram of the eccentric protruding head structure of this utility model, which is inserted between the flange and the armature.

[0018] Reference numerals: 1-Magnetic yoke, 2-Armature, 3-Rotor, 4-Flange, 5-Release lever, 51-Eccentric protrusion structure, 6-Shift fork, 61-U-shaped plate, 62-Handle, 7-Brake wire, 8-Glans head, 9-Mounting sleeve, 10-Seal. Detailed Implementation

[0019] The following description, in conjunction with specific embodiments, provides further details. Figures 1-4As shown, this embodiment is a brake for immersion in liquid with manual release, including a magnetic yoke 1, an armature 2, a rotor 3 and a flange 4, and a release rod 5 externally connected to and rotatably connected to the surface of the magnetic yoke 1. The front end of the release rod 5 is engaged between the armature 2 and the flange 4. The front end of the release rod 5 is provided with an eccentric protrusion structure 51. When the magnetic yoke 1 is de-energized, the release rod 5 rotates to abut against and open the gap between the flange 4 and the armature 2, so that the contact between the armature 2 and the rotor 3 is separated. Specifically, the magnetic yoke 1 of this brake is designed for use in liquids, and its surface is a completely enclosed structure. The release lever 5 is inserted radially through an opening on the side of the magnetic yoke 1. Care must be taken to seal the connection between the release lever 5 and the magnetic yoke 1 to prevent liquid from flowing into the brake. The armature 2, rotor 3, and flange 4 are arranged sequentially in the axial direction. The rotor 3 has a slightly smaller diameter, creating a gap between the armature 2 and the flange 4 into which the eccentric protrusion structure 51 for the release lever 5 can be inserted. The eccentric protrusion structure 51 can be manually rotated at a certain angle to change the size of this gap. Since the flange 4 is immovable, the armature 2 presses against the end of the magnetic yoke 1 to reset the brake spring, thus releasing the contact between the armature 2 and the end face of the rotor 3. This release structure is relatively simple and the operation is smoother and less prone to jamming.

[0020] Reference Figure 1 As shown, in this embodiment, the release levers 5 are symmetrically arranged on both sides of the magnetic yoke 1, and the tail ends of the two release levers 5 are connected to the forks 6. Specifically, in order to ensure that the force on both sides of the armature 2 is balanced, the connecting line of the action point of the release levers 5 passes through the center of the magnetic yoke 1. Using the forks 6 can increase the release torque, and manual release is more labor-saving.

[0021] like Figure 1 As shown, in some embodiments, the shift fork 6 includes a U-shaped plate 61 and a handle 62. The handle 62 is located in the middle of the handle 62. The front end of the U-shaped plate 61 is detachably connected to the release lever 5 by threads. Specifically, the U-shaped plate 61 is used to connect the tail ends of the two release levers 5. The tail end of the release lever 5 is provided with a locking slot that mates with the U-shaped plate 61. After the two are mated, nuts are inserted into both ends of the U-shaped plate 61 and tightened. The operator manually presses the handle 62 to trigger the release lever 5 to rotate a certain angle to complete the release.

[0022] like Figure 3As shown, in some embodiments, the magnetic yoke 1 has a mounting sleeve 9 on its side, the release lever 5 passes through the mounting sleeve 9, and the inner hole of the mounting sleeve 9 has a sealing element 10. Specifically, the sealing element 10 is a plug seal, which is a high-performance sealing element 10 with a U-shaped Teflon core containing a special spring. Relying on the appropriate spring force and the system fluid pressure, the sealing lip (face) is pushed out and gently pressed against the sealed metal surface, thereby generating an excellent sealing effect. The actuation effect of the spring can overcome the slight eccentricity of the metal mating surfaces and the wear of the sealing lip, and maintain the expected sealing performance. The mounting sleeve 9 is connected to the magnetic yoke 1 by screws, and a sealing ring is pressed at the junction of the mounting sleeve 9 and the magnetic yoke 1, thereby improving the sealing performance at the release lever 5, which is beneficial for use when the brake is immersed in liquid.

[0023] like Figure 3 As shown, the minimum diameter of the eccentric protrusion structure 51 is less than the thickness of the rotor 3, while the maximum diameter of the eccentric protrusion structure 51 needs to be greater than the thickness of the rotor 3 in order to open up the gap between the armature 2 and the flange 4.

[0024] A brake wire 7 is connected to the outside of the magnetic yoke 1. This brake wire 7 is used to control the on and off of the electromagnetic coil of the magnetic yoke 1. The output of the brake wire 7 is provided with a gland 8, and the connection between the gland 8 and the magnetic yoke 1 is filled with silicone.

[0025] Optionally, the eccentric protruding head structure 51 adopts a cam, which has a small diameter end and a large diameter end. When the large diameter end of the cam abuts against the armature 2 and the flange 4 respectively, the braking state can be released.

[0026] Alternatively, the eccentric protrusion structure 51 can be made using an eccentric shaft, such as... Figure 4 As shown, the eccentric shaft forms a plane parallel to the axis by cutting away the cylinder along its axial direction. When the brake is engaged, this plane faces the end face of the armature 2 or flange 4.

[0027] 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 manually released brake for immersion in liquid, comprising a magnetic yoke (1), an armature (2), a rotor (3), and a flange (4), characterized in that: It also includes a release lever (5) externally connected to the surface of the magnetic yoke (1) and rotatably connected thereto, the front end of the release lever (5) being engaged between the armature (2) and the flange (4); The front end of the release lever (5) is provided with an eccentric protrusion structure (51). When the magnetic yoke (1) is de-energized, the release lever (5) rotates to abut against and open the gap between the flange (4) and the armature (2), so that the armature (2) and the rotor (3) are separated from each other.

2. The brake with manual release for immersion in liquid according to claim 1, characterized in that: The release levers (5) are symmetrically arranged on both sides of the magnetic yoke (1), and the tail ends of the two release levers (5) are connected to a fork (6).

3. The brake with manual release for immersion in liquid according to claim 2, characterized in that: The shift fork (6) includes a U-shaped plate (61) and a handle (62). The handle (62) is located in the middle of the handle (62), and the front end of the U-shaped plate (61) is detachably connected to the release lever (5) by a thread.

4. The brake with manual release for immersion in liquid according to claim 1, characterized in that: The magnetic yoke (1) has a mounting sleeve (9) on its side, the release lever (5) passes through the mounting sleeve (9), and the inner hole of the mounting sleeve (9) is provided with a sealing element (10).

5. The brake with manual release for immersion in liquid according to claim 1, characterized in that: The minimum diameter of the eccentric protrusion structure (51) is smaller than the thickness of the rotor (3).

6. The brake with manual release for immersion in liquid according to claim 1, characterized in that: The magnetic yoke (1) is externally connected to a brake wire (7), and the outlet of the brake wire (7) is provided with a gland (8), and the junction of the gland (8) and the magnetic yoke (1) is filled with silicone.

7. The brake with manual release for immersion in liquid according to claim 1, characterized in that: The eccentric protrusion structure (51) adopts a cam.

8. The brake with manual release for immersion in liquid according to claim 1, characterized in that: The eccentric protrusion structure (51) adopts an eccentric shaft.

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