Self-adaptive electromagnetic brake

Abstract

The utility model provides a self-adaptive electromagnetic brake which comprises a shell, a rotating main shaft and a passive brake pad, a first opening hole is formed in the shell, the rotating main shaft is rotatably connected with the first opening hole, the passive brake pad is fixedly connected to the outer circle face of the rotating main shaft, and a driving brake pad is arranged between the shell and the passive brake pad. The outer circle face of the rotating main shaft is sleeved with the driving brake pad, an electromagnetic assembly and a balance assembly are arranged in the shell, the balance assembly comprises a sliding block, and the sliding block is fixedly connected with the driving brake pad. According to the scheme, the iron core and the electromagnetic coil are arranged in the shell, and the balance assembly capable of enabling the active brake pad to slowly move towards the shell is arranged in the shell, so that when the electromagnetic coil is powered on, the active brake pad is attracted by the iron core towards the direction of the shell not too fast; therefore, the active brake pad is prevented from being damaged excessively due to collision between the active brake pad and the shell during electrification, and the purpose of prolonging the service life of the active brake pad is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of brake equipment, in particular to an adaptive electromagnetic brake. Background Art

[0002] Electromagnetic brakes utilize electromagnetic force to achieve braking and are widely used in various mechanical equipment, such as elevators, cranes, and metallurgical equipment. Their operating principle is based on the electromagnetic effect. When the electromagnetic coil is energized, a magnetic field is generated, which attracts the brake's friction element to contact the rotating component, generating friction and braking. Electromagnetic brakes offer advantages such as compact structure, quick response, and ease of remote control.

[0003] However, during the above braking process, the brake pads are prone to shortening the service life of the electromagnetic brake due to high-frequency collisions. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides an adaptive electromagnetic brake, which solves the problems raised in the above background technology.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an adaptive electromagnetic brake, characterized in that it includes a shell, a rotating main shaft and a passive brake pad, a first opening is opened in the shell, the rotating main shaft is rotatably connected to the first opening, the passive brake pad is fixedly connected to the outer cylindrical surface of the rotating main shaft, an active brake pad is arranged between the shell and the passive brake pad, the active brake pad is sleeved on the outer cylindrical surface of the rotating main shaft, an electromagnetic component and a balancing component are arranged in the shell, the balancing component includes a sliding block, and the sliding block is fixedly connected to the active brake pad.

[0008] Preferably, the balancing assembly also includes a flow limiting plate and a balancing slide plate, a third slot and a fourth slot are provided in the outer shell, the flow limiting plate is fixedly connected to the third slot, the balancing slide plate and the sliding block are both slidably connected to the third slot, the third slot is filled with damping oil, and the fourth slot is filled with inert gas.

[0009] Preferably, two third openings are provided through the flow limiting plate, and two flow limiting grooves are also provided on the end face of the flow limiting plate close to the fourth groove. A connecting rod is fixedly connected to the end face of the flow limiting plate close to the fourth groove, and a first baffle is fixedly connected to the end face of the connecting rod away from the flow limiting plate, and a second baffle is sleeved on the outer circular surface of the connecting rod.

[0010] Preferably, the electromagnetic assembly includes an iron core and an electromagnetic coil, the electromagnetic coil is sleeved on the outer cylindrical surface of the iron core, and the outer shell is also provided with a first slot and a second slot, the iron core is fixedly arranged in the first slot, and a power cord is arranged in the second slot, and the power cord is electrically connected to the electromagnetic coil.

[0011] Preferably, the radius of the second baffle is greater than the distance from the farthest end of the third opening to the axis of the flow limiting plate.

[0012] Preferably, the radius of the second baffle is smaller than the distance from the farthest end of the flow limiting groove to the axis of the flow limiting plate.

[0013] (3) Beneficial effects

[0014] The utility model provides an adaptive electromagnetic brake, which has the following beneficial effects:

[0015] 1. This solution arranges an iron core and an electromagnetic coil in a housing and a balancing component in the housing that can slowly move the active brake pad toward the housing. When the electromagnetic coil is energized, the iron core will not attract the active brake pad toward the housing too quickly, thereby preventing the active brake pad from colliding with the housing when power is applied, thereby preventing excessive damage to the active brake pad, thereby achieving the purpose of extending the service life of the active brake pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a right side structural schematic diagram of the present utility model;

[0018] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0019] Figure 4 for Figure 3 Schematic diagram of the structure of B.

[0020] In the figure: 11, housing; 12, first opening; 13, rotating spindle; 14, passive brake pad; 15, active brake pad; 16, second opening; 17, first slot; 18, iron core; 19, electromagnetic coil; 20, second slot; 21, power cord; 22, third slot; 23, fourth slot; 24, current limiting plate; 25, balancing slide; 26, sliding block; 27, third opening; 28, current limiting slot; 29, connecting rod; 30, first baffle; 31, second baffle. DETAILED DESCRIPTION

[0021] The present invention provides an adaptive electromagnetic brake. Figure 1-4As shown, it includes a shell 11, a first opening 12, a rotating spindle 13, a passive brake pad 14, an active brake pad 15, a second opening 16, a first slot 17, an iron core 18, an electromagnetic coil 19, a second slot 20, a power cord 21, a third slot 22, a fourth slot 23, a current limiting plate 24, a balancing slide 25, a sliding block 26, a third opening 27, a current limiting slot 28, a connecting rod 29, a first baffle 30, and a second baffle 31.

[0022] like Figure 1-4 As shown, a first opening 12 is provided in the housing 11, the rotating main shaft 13 is rotatably connected to the first opening 12, the passive brake pad 14 is fixedly connected to the outer cylindrical surface of the rotating main shaft 13, an active brake pad 15 is provided between the housing 11 and the passive brake pad 14, the active brake pad 15 is sleeved on the outer cylindrical surface of the rotating main shaft 13, a second opening 16 is provided in the active brake pad 15, the second opening 16 is sleeved on the outer cylindrical surface of the rotating main shaft 13, an electromagnetic component and a balancing component are provided in the housing 11, the balancing component includes a sliding block 26, and the sliding block 26 is fixedly connected to the active brake pad 15.

[0023] The balancing assembly also includes a flow limiting plate 24 and a balancing slide 25. A third slot 22 and a fourth slot 23 are provided in the outer shell 11. The flow limiting plate 24 is fixedly connected to the third slot 22. The balancing slide 25 and the sliding block 26 are both slidably connected to the third slot 22. The third slot 22 is filled with damping oil, and the fourth slot 23 is filled with inert gas.

[0024] Two third openings 27 are formed through the flow limiting plate 24, and two flow limiting grooves 28 are also formed on the end surface of the flow limiting plate 24 close to the fourth slot 23. A connecting rod 29 is fixedly connected to the end surface of the flow limiting plate 24 close to the fourth slot 23, and a first baffle 30 is fixedly connected to the end surface of the connecting rod 29 away from the flow limiting plate 24. A second baffle 31 is sleeved on the outer circumferential surface of the connecting rod 29.

[0025] It is worth noting that the side of the active brake pad 15 close to the housing 11 is made of iron-cobalt-nickel alloy, the side of the active brake pad 15 close to the passive brake pad 14 is provided with anti-slip grooves, and a spring can be provided between the first baffle 30 and the second baffle 31.

[0026] The radius of the second baffle 31 is greater than the distance from the farthest end of the third opening 27 to the axis of the flow limiting plate 24 , and is smaller than the distance from the farthest end of the flow limiting groove 28 to the axis of the flow limiting plate 24 .

[0027] The electromagnetic assembly includes an iron core 18 and an electromagnetic coil 19. The electromagnetic coil 19 is sleeved on the outer cylindrical surface of the iron core 18. The outer shell 11 is also provided with a first slot 17 and a second slot 20. The iron core 18 is fixedly arranged in the first slot 17. A power cord 21 is arranged in the second slot 20. The power cord 21 is electrically connected to the electromagnetic coil 19, and the end of the power cord 21 away from the electromagnetic coil 19 is electrically connected to the power supply.

[0028] When electromagnetic braking is performed in this scheme, first, the power supply connected to the power cord 21 is started, and the electromagnetic coil 19 causes the iron core 18 to generate magnetism. The iron core 18 pulls the active brake pad 15 toward the housing 11 through magnetic force. The active brake pad 15 pushes the sliding block 26 slowly toward the fourth slot 23 and compresses the inert gas in the fourth slot 23.

[0029] Then, after the inert gas in the fourth slot 23 is compressed, the pressure increases, pushing the balancing slide 25 to slide toward the flow limiting plate 24. At this time, the second baffle 31 is pressed against the flow limiting plate 24 due to the pressure of the damping oil on the side close to the balancing slide 25. The balancing slide 25 slowly passes the damping oil in the third slot 22 from the side of the flow limiting plate 24 close to the balancing slide 25 through the flow limiting groove 28 and the third opening 27 into the side of the third slot 22 away from the balancing slide 25.

[0030] Finally, when the power supply connected to the power cord 21 is cut off, the magnetism of the iron core 18 disappears, and the damping oil on the side of the third slot 22 away from the balancing skateboard 25 pushes the second baffle 31 to slide toward the first baffle 30 through the third opening 27, and enters the side of the limiting plate 24 close to the balancing skateboard 25 from the third opening 27. The damping oil pushes the balancing skateboard 25 to slide toward the sliding block 26, and the balancing skateboard 25 compresses the inert gas in the fourth slot 23. The inert gas in the fourth slot 23 drives the active brake pad 15 to slide toward the passive brake pad 14 through the sliding block 26 until the active brake pad 15 contacts the passive brake pad 14.

[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive electromagnetic brake, characterized in that: The invention comprises a housing (11), a rotating main shaft (13) and a passive brake pad (14); a first opening (12) is provided in the housing (11); the rotating main shaft (13) is rotatably connected to the first opening (12); the passive brake pad (14) is fixedly connected to the outer circumference of the rotating main shaft (13); an active brake pad (15) is provided between the housing (11) and the passive brake pad (14); the active brake pad (15) is sleeved on the outer circumference of the rotating main shaft (13); an electromagnetic component and a balancing component are provided in the housing (11); the balancing component comprises a sliding block (26); and the sliding block (26) is fixedly connected to the active brake pad (15).

2. The adaptive electromagnetic brake according to claim 1, characterized in that: The balancing assembly further comprises a flow limiting plate (24) and a balancing slide plate (25); a third slot (22) and a fourth slot (23) are provided in the housing (11); the flow limiting plate (24) is fixedly connected to the third slot (22); the balancing slide plate (25) and the sliding block (26) are both slidably connected to the third slot (22); the third slot (22) is filled with damping oil, and the fourth slot (23) is filled with inert gas.

3. The adaptive electromagnetic brake according to claim 2, characterized in that: Two third openings (27) are provided through the flow limiting plate (24), and two flow limiting grooves (28) are provided on an end surface of the flow limiting plate (24) close to the fourth slot (23). A connecting rod (29) is fixedly connected to an end surface of the flow limiting plate (24) close to the fourth slot (23), and a first baffle (30) is fixedly connected to an end surface of the connecting rod (29) away from the flow limiting plate (24). A second baffle (31) is sleeved on the outer circumferential surface of the connecting rod (29).

4. The adaptive electromagnetic brake according to claim 2, characterized in that: The electromagnetic assembly comprises an iron core (18) and an electromagnetic coil (19), wherein the electromagnetic coil (19) is sleeved on the outer circumferential surface of the iron core (18), and the housing (11) is further provided with a first slot (17) and a second slot (20), wherein the iron core (18) is fixedly arranged in the first slot (17), and a power line (21) is arranged in the second slot (20), and the power line (21) is electrically connected to the electromagnetic coil (19).

5. The adaptive electromagnetic brake according to claim 3, characterized in that: The radius of the second baffle (31) is greater than the distance from the farthest end of the third opening (27) to the axis of the flow limiting plate (24).

6. The adaptive electromagnetic brake according to claim 3, characterized in that: The radius of the second baffle (31) is smaller than the distance from the farthest end of the flow limiting groove (28) to the axis of the flow limiting plate (24).

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