Marine electromagnetic brake

Abstract

The utility model relates to the technical field of brakes, and particularly discloses a marine electromagnetic brake which comprises a stator, an armature and a brake disc which are sequentially arranged, and further comprises a connecting rotor connected with a motor, and the connecting rotor is arranged between the stator and the armature. The connecting rotor is connected with the armature in a penetrating mode and drives the armature to rotate synchronously with the connecting rotor. At least one brake spring is connected between the connecting rotor and the armature in an abutting mode. When the stator is powered off, the armature in the rotating state moves towards one side of the static brake disc and makes contact with the static brake disc. The device enables the armature and the connecting rotor to rotate synchronously with the winding drum, and is suitable for maintaining the braking of the winding drum of the windlass.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, in particular to a marine electromagnetic brake. Background Art

[0002] An electromagnetic brake is a device that uses electromagnetic force to stop or slow down the movement of mechanical equipment. Its structure mainly includes a yoke, coil, brake disc, spring, and armature.

[0003] However, in a traditional electromagnetic brake, the brake disc rotor is usually connected to the motor shaft and is in a rotating state. Braking is achieved by the armature moving laterally to contact the brake disc rotor, while the armature body does not rotate. However, when the windlass's drum is being wound, the drum needs to be braked to prevent the rope or wire on the drum from rebounding and becoming loose. Therefore, it is difficult to apply to the windlass. Utility Model Content

[0004] The utility model aims to provide a marine electromagnetic brake which enables the armature to rotate synchronously with the drum and is suitable for maintaining the braking of the windlass drum.

[0005] The utility model is achieved through the following technical solutions: a marine electromagnetic brake, comprising a stator, an armature and a brake disc arranged in sequence, and also comprising a connecting rotor connected to a motor, wherein the connecting rotor is arranged between the stator and the armature, and the connecting rotor is connected to the armature and drives the armature to rotate synchronously therewith; at least one brake spring is abutted between the connecting rotor and the armature; when the stator is powered off, the armature in a rotating state moves toward one side of the stationary brake disc and contacts it.

[0006] Furthermore, it also includes a flange, a guide sleeve and connecting screws. The brake disc is arranged between the armature and the flange, and the two ends of the guide sleeve are respectively in contact with the connecting rotor and the flange; the armature is slidably connected to the guide sleeve.

[0007] Furthermore, the brake disc includes a friction plate and an isolation plate, and the friction plate and the isolation plate are alternately overlapped and arranged; the guide sleeve passes through the isolation plate and is slidably connected thereto.

[0008] Furthermore, it also includes a fixed cylinder, and the friction plate is sleeved on the outside of the fixed cylinder.

[0009] Furthermore, a plurality of mounting screw holes are formed on an end surface of the fixing cylinder away from the armature.

[0010] Furthermore, a first bearing is installed in the inner hole of the fixing cylinder.

[0011] Furthermore, the stator is embedded in the connecting rotor, and a second bearing is provided between the stator and the connecting rotor.

[0012] Furthermore, the inner hole of the connecting rotor is provided with a flat keyway.

[0013] The technical solution of the present invention has at least the following advantages and beneficial effects: the present invention arranges a connecting rotor connected to the motor and the drum to drive the armature and the connection to rotate synchronously, so that when the power is cut off, the armature in the rotating state squeezes the friction plates and the isolation plates in a multi-plate structure that are alternately stacked to achieve braking, and the braking effect is good, the braking time is short, and the braking state can be effectively maintained to avoid circumferential angle deviation of the drum, and the utility model is suitable for use in windlasses. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the internal structure diagram of the marine electromagnetic brake of the utility model;

[0015] Figure 2 This is a schematic diagram of the left end structure of the marine electromagnetic brake in the present invention;

[0016] Figure 3 This is a schematic structural diagram of the right side end face of the marine electromagnetic brake in the present utility model.

[0017] Figure markings: 1-stator, 2-connecting rotor, 21-brake spring, 22-flat keyway, 3-armature, 4-brake disc, 41-friction plate, 42-isolation plate, 5-flange, 6-guide sleeve, 7-connecting screw, 8-fixing cylinder, 81-mounting screw hole, 9-first bearing, 10-second bearing. DETAILED DESCRIPTION

[0018] The following is a specific implementation method with reference to the accompanying drawings.

[0019] Detailed implementation of the drawings Detailed implementation of the drawings Detailed implementation of the drawings Detailed implementation of the drawings Detailed implementation of the drawings Detailed implementation of the drawings Detailed implementation of the drawings Detailed implementation of the drawings Detailed implementation of the drawings

[0020] Specific implementation of the accompanying drawings Specific implementation of the accompanying drawings

[0021] The following is further described in conjunction with specific embodiments. Figure 1-Figure 3As shown, this embodiment is a marine electromagnetic brake, comprising a stator 1, an armature 3 and a brake disc 4 arranged in sequence, and also comprising a connecting rotor 2 connected to the motor, the connecting rotor 2 being arranged between the stator 1 and the armature 3, and the connecting rotor 2 is connected to the armature 3 and drives the armature 3 to rotate synchronously with it; at least one brake spring 21 is abutted between the connecting rotor 2 and the armature 3; when the stator 1 is powered off, the armature 3 in a rotating state moves toward one side of the stationary brake disc 4 and contacts it; specifically, one end of the connecting rotor 2 is connected to the windlass motor, and when the windlass drum is wound, the connecting rotor 2 drives the armature 3 to rotate synchronously, while the brake disc 4 is in a stationary state; and when the drum stops winding, the stator 1 is powered off, so that the stator 1 loses its attraction to the armature 3, and the elastic force of the brake spring 21 pushes the armature 3 out, and the armature 3 in a rotating state contacts and brakes the brake disc 4, thereby achieving a good braking maintenance effect.

[0022] It should be noted that the armature 3 body of a conventional brake cannot rotate, while this type of brake has a rotatable armature 3 body, which is mainly used in windlasses on ships. Because the armature 3 body needs to rotate together, the traditional electromagnetic brake cannot maintain braking when the windlass drum is wound.

[0023] like Figure 1 As shown, this embodiment also includes a flange 5, a guide sleeve 6 and a connecting screw 7. The brake disc 4 is arranged between the armature 3 and the flange 5. The two ends of the guide sleeve 6 are respectively connected to the rotor 2 and the flange 5 and abut against each other; the armature 3 is slidingly connected to the guide sleeve 6; specifically, the brake disc 4 is clamped between the armature 3 and the flange 5 to achieve two-sided friction, and the guide sleeve 6 guides the movement of the armature 3.

[0024] More preferably, the brake disc 4 in this embodiment includes a friction plate 41 and an isolation plate 42, and the friction plate 41 and the isolation plate 42 are arranged alternately and overlapped; the guide sleeve 6 passes through the isolation plate 42 and is slidably connected thereto; specifically, the diameter of the friction plate 41 is smaller than that of the isolation plate 42, and both the friction plate 41 and the isolation plate 42 are provided with openings in the middle, and the end faces of the friction plate 41 and the isolation plate 42 are not connected, and the isolation plate 42 will rotate synchronously with the armature 3, and when the armature 3 is in braking contact with the friction plate 41, the end faces on both sides of the multiple friction plates 41 will be subjected to extrusion friction to achieve braking, thereby shortening the braking time and improving the braking efficiency.

[0025] Furthermore, this embodiment also includes a fixed cylinder 8, and the friction plate 41 is sleeved on the outside of the fixed cylinder 8. The end surface of the fixed cylinder 8 on the side away from the armature 3 is provided with multiple mounting screw holes 81; specifically, the fixed cylinder 8 is fixed by mounting screws to keep it stationary, and the friction plate 41 is sleeved on the fixed cylinder 8 through the hole, so that it is in a fixed state like the fixed cylinder 8.

[0026] In addition, it should be noted that a first bearing 9 is installed in the inner hole of the fixing cylinder 8 .

[0027] like Figure 1 As shown, the stator 1 is embedded in the connecting rotor 2, the connecting rotor 2 is provided with an annular groove adapted to the stator 1, and a second bearing 10 is provided between the stator 1 and the connecting rotor 2; specifically, when the motor shaft is connected to the connecting rotor 2, the second bearing 10 allows the connecting rotor 2 to rotate relative to the stator 1, and the stator 1 is in a stationary state.

[0028] It is worth noting that a flat keyway 22 is provided in the inner hole of the connecting rotor 2 , and the motor shaft is connected to the connecting rotor 2 by snapping in the flat key.

[0029] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A marine electromagnetic brake comprising a stator (1), an armature (3) and a brake disc (4) arranged in sequence, characterized in that: It also includes a connecting rotor (2) connected to the motor, the connecting rotor (2) being arranged between the stator (1) and the armature (3), and the connecting rotor (2) being connected to the armature (3) and driving the armature (3) to rotate synchronously therewith; At least one brake spring (21) is in contact between the connecting rotor (2) and the armature (3); When the stator (1) is powered off, the armature (3) in a rotating state moves toward one side of the stationary brake disc (4) and contacts the same.

2. The marine electromagnetic brake according to claim 1, characterized in that: It also includes a flange (5), a guide sleeve (6) and a connecting screw (7), wherein the brake disc (4) is arranged between the armature (3) and the flange (5), and the two ends of the guide sleeve (6) are respectively in contact with the connecting rotor (2) and the flange (5); The armature (3) is slidably connected to the guide sleeve (6).

3. The marine electromagnetic brake according to claim 2, characterized in that: The brake disc (4) comprises a friction plate (41) and an isolation plate (42), and the friction plate (41) and the isolation plate (42) are alternately overlapped and arranged; The guide sleeve (6) passes through the isolation plate (42) and is slidably connected thereto.

4. The marine electromagnetic brake according to claim 3, characterized in that: It also includes a fixed cylinder (8), and the friction plate (41) is sleeved on the outside of the fixed cylinder (8).

5. The marine electromagnetic brake according to claim 4, characterized in that: A plurality of mounting screw holes (81) are provided on an end surface of the fixing cylinder (8) away from the armature (3).

6. The marine electromagnetic brake according to claim 4, characterized in that: A first bearing (9) is installed in the inner hole of the fixed cylinder (8).

7. The marine electromagnetic brake according to claim 1, characterized in that: The stator (1) is embedded in the connecting rotor (2), and a second bearing (10) is provided between the stator (1) and the connecting rotor (2).

8. The marine electromagnetic brake according to claim 1, characterized in that: The inner hole of the connecting rotor (2) is provided with a flat keyway (22).

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