Electromagnetic clutch with braking function

Abstract

The utility model relates to the technical field of electromagnetic clutches, and discloses an electromagnetic clutch with a braking function, which comprises a first shell, a second shell, a first end cover and a second end cover, a driving shaft is arranged in the center of the interior of the first shell, a reel is arranged on the inner side of the first end cover, a coil is wound on the reel, and the driving shaft is connected with the driving shaft. A driven shaft is arranged in the center in the second shell, a driving friction plate is arranged in the first shell and located at the end of the driving shaft, a driven friction plate is arranged on one side of the driving friction plate, and a braking assembly is arranged on the side, close to the second end cover, of the driven friction plate. According to the electromagnetic clutch with the braking function, the braking assembly is arranged, when a coil is powered on, generated suction force can effectively drive a driven friction plate to move rightwards and make contact with a driving friction plate to achieve transmission, in the right moving process of the driven friction plate, a limiting connecting rod pulls a movable braking plate to extrude a spring and synchronously move rightwards, and when power is stopped, the spring releases energy; and the movable brake pad is pushed to contact with the fixed brake pad to realize braking.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic clutch technology, specifically to an electromagnetic clutch with braking function. Background Technology

[0002] An electromagnetic clutch is an electromechanical connector that uses the principle of electromagnetic induction and the friction between inner and outer friction plates to enable two rotating parts in a mechanical transmission system to engage or disengage with the driven part without stopping the rotation of the driving part. It is an automatically executed electrical device.

[0003] Since existing electromagnetic clutches generally lack an effective braking structure, they cannot quickly stop the rotation of the driven parts when needed, thus failing to improve the safety and reliability of the mechanical system. Furthermore, existing electromagnetic clutches are inconvenient to install and disassemble, and after prolonged use, it is difficult to quickly disassemble the outer casing for maintenance and repair of the internal parts. Therefore, there is a need to provide an electromagnetic clutch with a braking function to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an electromagnetic clutch with braking function, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: an electromagnetic clutch with braking function, comprising a first housing and a second housing, the first housing and the second housing being interlocked with each other, a first end cover being provided at the end of the first housing away from the second housing, a second end cover being provided at the end of the second housing away from the first housing, a drive shaft being provided at the center inside the first housing, a winding frame being provided inside the first end cover, a coil being wound on the winding frame, a driven shaft being provided at the center inside the second housing, a drive friction plate being provided inside the first housing and at the end of the drive shaft, a driven friction plate being provided on one side of the drive friction plate, and a braking component being provided on the side of the driven friction plate near the second end cover;

[0006] The braking assembly includes a limiting disc, which is fixedly sleeved on the outer surface of the driven shaft.

[0007] Preferably, bearings are fitted on the outer surfaces of both the drive shaft and the driven shaft. The drive shaft is rotatably connected to the first end cover via the bearings, and the driven shaft is rotatably connected to the second end cover via the bearings.

[0008] Preferably, a connecting flange is provided at the connection between the first housing and the first end cap, and at the connection between the second housing and the second end cap. A connecting rod is provided on the connecting flange through a mounting hole, and the end of the connecting rod is provided with an external thread and threadedly connected to a fastening nut.

[0009] Preferably, a spline shaft is arranged at the center of the driven friction plate, and a shaft hole is arranged on the spline shaft to match the spline shaft, and the spline shaft is slidably inserted into the shaft hole.

[0010] Preferably, the brake assembly further comprises a limiting connecting rod, a spring, a movable brake plate and a fixed brake plate, a sliding hole is arranged on the limiting disc, one end of the limiting connecting rod passes through the sliding hole and is connected with the driven friction plate, and the other end of the limiting connecting rod away from the driven friction plate is connected with the movable brake plate.

[0011] Preferably, the spring is sleeved on the outer surface of the limiting connecting rod, one end of the spring is connected with the limiting disc through a first connecting piece, the other end of the spring away from the limiting disc is connected with the movable brake plate through a second connecting piece, and the fixed brake plate is fixedly arranged on the inner wall of the second end cover.

[0012] Preferably, a limiting frame is arranged on the inner wall of the first end cover, and the bobbin is clamped in the limiting frame.

[0013] Preferably, a threading hole is arranged on the first end cover.

[0014] Compared with the prior art, the electromagnetic clutch with the brake function has the following beneficial effects:

[0015] 1. The electromagnetic clutch with the brake function, when the coil is powered, the generated suction force can effectively drive the driven friction plate to move right and contact the driving friction plate to realize transmission, in the process of moving right of the driven friction plate, the limiting connecting rod pulls the movable brake plate to extrude the spring and synchronously moves right, the movable brake plate moves away from the fixed brake plate, when the power supply is stopped, the spring releases energy to push the movable brake plate to contact the fixed brake plate, and the rotation is stopped to realize braking and ensure the safety and reliability of the mechanical system.

[0016] 2. The electromagnetic clutch with the brake function, by rotating and removing the fastening nut, the connecting rod can be pulled out to effectively split the first shell, the first end cover, the second shell and the second end cover, and the internal structure can be effectively maintained, time and labor are saved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the electromagnetic clutch with the brake function of the utility model;

[0018] Figure 2 It is a sectional view of the electromagnetic clutch with the brake function of the utility model;

[0019] Figure 3 It is a connection structure schematic view of the first shell and the first end cover of the utility model;

[0020] Figure 4 It is an installation structure schematic view of the brake assembly of the utility model;

[0021] Figure 5 The utility model discloses a driven shaft and limit disc's connection structure schematic view.

[0022] Figure 6 The utility model discloses a driven friction piece and brake assembly's connection structure schematic view.

[0023] In the figure: 1, the first shell, 101, the first end cover, 102, the limit frame, 2, the second shell, 201, the second end cover, 3, the connecting rod, 301, the fastening nut, 4, the bearing, 5, the driving shaft, 501, the driving friction piece, 6, the driven shaft, 601, the driven friction piece, 602, the spline shaft, 603, the shaft hole, 7, the reel, 701, the coil, 8, the brake assembly, 801, the limit disc, 802, the sliding hole, 803, the limit connecting rod, 804, the spring, 805, the movable brake piece, 806, the fixed brake piece. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-6 A kind of electromagnetic clutch with brake function, including first shell 1 and second shell 2, first shell 1 and second shell 2 are mutually clamped, first shell 1 is provided with first end cover 101 away from the one end of second shell 2, second shell 2 is provided with second end cover 201 away from the one end of first shell 1, the center of first shell 1 inside is provided with driving shaft 5, the inside of first end cover 101 is provided with reel 7, coil 701 is wound on reel 7, the center of second shell 2 inside is provided with driven shaft 6, the end of driving shaft 5 in the inside of first shell 1 is provided with driving friction piece 501, driving friction piece 501 side is provided with driven friction piece 601, driven friction piece 601 is provided with brake assembly 8 close to the side of second end cover 201.

[0026] Brake assembly 8 includes limit disc 801, limit disc 801 is fixedly sleeved on the outer surface of driven shaft 6.

[0027] The drive shaft 5 and the driven shaft 6 are both fitted with bearings 4 on their outer surfaces. The drive shaft 5 is rotatably connected to the first end cover 101 through the bearings 4, and the driven shaft 6 is rotatably connected to the second end cover 201 through the bearings 4. Connecting flanges are provided at the connection points between the first housing 1 and the first end cover 101, and between the second housing 2 and the second end cover 201. Connecting rods 3 are provided on the connecting flanges through mounting holes. The end of the connecting rod 3 is threaded and threaded with a fastening nut 301. By rotating and removing the fastening nut 301, the connecting rod 3 can be pulled out, thus realizing the effective separation between the first housing 1, the first end cover 101, the second housing 2, and the second end cover 201. This facilitates the effective maintenance and repair of the internal structure, saving time and effort.

[0028] The driven friction plate 601 has a splined shaft 602 at its inner center. The driven shaft 6 has a shaft hole 603 that mates with the splined shaft 602. The splined shaft 602 can be slidably inserted into the shaft hole 603. The driven friction plate 601 is slidably connected to the driven shaft 6 through the splined shaft 602, which enables the driven friction plate 601 to move in the horizontal direction.

[0029] The braking assembly 8 also includes a limit link 803, a spring 804, a moving brake pad 805, and a custom moving pad 806. A sliding hole 802 is provided on the limit disc 801. One end of the limit link 803 passes through the sliding hole 802 and connects to the driven friction pad 601. The end of the limit link 803 away from the driven friction pad 601 is connected to the moving brake pad 805. The spring 804 is sleeved on the outer surface of the limit link 803. One end of the spring 804 is connected to the limit disc 801 via a first connecting piece, and the end of the spring 804 away from the limit disc 801 is connected to the moving brake pad 805 via a second connecting piece. 05 Connection: The custom moving plate 806 is fixedly installed on the inner wall of the second end cover 201. When the coil 701 is energized, the resulting suction force can effectively drive the driven friction plate 601 to move to the right and contact the active friction plate 501 to achieve transmission. During the rightward movement of the driven friction plate 601, it will pull the moving brake plate 805 to squeeze the spring 804 through the limit link 803 and move to the right simultaneously. The moving brake plate 805 moves away from the custom moving plate 806. When the energization is stopped, the spring 804 releases energy and pushes the moving brake plate 805 to contact the custom moving plate 806, stopping the rotation and achieving braking.

[0030] Among them, a limiting frame 102 is provided on the inner wall of the first end cover 101, the winding frame 7 is locked inside the limiting frame 102, and a wire hole is opened on the first end cover 101. By setting the limiting frame 102, it is convenient to install the winding frame 7 and ensure the stability of the winding frame 7 and the coil 701 on it.

[0031] The working principle is that when the coil 701 is powered, the generated suction force can effectively drive the driven friction plate 601 to move right and contact the driving friction plate 501 to realize transmission, in the process of moving right of the driven friction plate 601, the movable brake plate 805 is pulled to extrude the spring 804 and move right synchronously through the limiting connecting rod 803, the movable brake plate 805 is away from the fixed brake plate 806, when the power supply is stopped, the spring 804 releases energy, pushes the movable brake plate 805 to contact the fixed brake plate 806, stops rotating, realizes braking, guarantees the safety and reliability of the mechanical system.

[0032] Further, after the electromagnetic clutch with the brake function is used for a long time, the fastening nut 301 is rotated and taken off, and then the connecting rod 3 can be pulled out, so that the first shell 1, the first end cover 101, the second shell 2 and the second end cover 201 are effectively split, and the internal structure can be effectively maintained and repaired, time and labor are saved.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic clutch with braking function, characterized in that, The device includes a first housing (1) and a second housing (2), which are interlocked. The first housing (1) is provided with a first end cap (101) at the end away from the second housing (2), and the second housing (2) is provided with a second end cap (201) at the end away from the first housing (1). The first housing (1) has an active shaft (5) at its center, and a winding frame (7) is provided inside the first end cap (101). A coil (701) is wound on the winding frame (7). The second housing (2) has a driven shaft (6) at its center. The first housing (1) has an active friction plate (501) at its end and inside the active shaft (5). A driven friction plate (601) is provided on one side of the active friction plate (501), and a braking assembly (8) is provided on the side of the driven friction plate (601) near the second end cap (201). The braking assembly (8) includes a limiting disc (801), which is fixedly sleeved on the outer surface of the driven shaft (6).

2. An electromagnetic clutch with braking function according to claim 1, characterized in that, The outer surfaces of the drive shaft (5) and the driven shaft (6) are both fitted with bearings (4). The drive shaft (5) is rotatably connected to the first end cover (101) through the bearings (4), and the driven shaft (6) is rotatably connected to the second end cover (201) through the bearings (4).

3. An electromagnetic clutch with braking function according to claim 1, characterized in that, A connecting flange is provided at the connection between the first housing (1) and the first end cap (101) and at the connection between the second housing (2) and the second end cap (201). A connecting rod (3) is provided on the connecting flange through the mounting hole. The end of the connecting rod (3) is provided with an external thread and is threaded to a fastening nut (301).

4. An electromagnetic clutch with braking function according to claim 1, characterized in that, A splined shaft (602) is provided at the center of the inner side of the driven friction plate (601). A shaft hole (603) is provided on the driven shaft (6) to cooperate with the splined shaft (602). The splined shaft (602) can be slidably inserted into the shaft hole (603).

5. An electromagnetic clutch with braking function according to claim 1, characterized in that, The braking assembly (8) further includes a limiting link (803), a spring (804), a moving brake pad (805), and a custom moving pad (806). The limiting disc (801) has a sliding hole (802). One end of the limiting link (803) passes through the sliding hole (802) and is connected to the driven friction pad (601). The end of the limiting link (803) away from the driven friction pad (601) is connected to the moving brake pad (805).

6. An electromagnetic clutch with braking function according to claim 5, characterized in that, The spring (804) is sleeved on the outer surface of the limiting link (803). One end of the spring (804) is connected to the limiting plate (801) through the first connecting piece. The end of the spring (804) away from the limiting plate (801) is connected to the dynamic brake plate (805) through the second connecting piece. The custom dynamic plate (806) is fixedly set on the inner wall of the second end cap (201).

7. An electromagnetic clutch with braking function according to claim 1, characterized in that, A limiting frame (102) is provided on the inner wall of the first end cap (101), and the winding frame (7) is locked inside the limiting frame (102).

8. An electromagnetic clutch with braking function according to claim 1, characterized in that, The first end cap (101) has a thread hole.

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