Energy-saving electromagnetic clutch for water pump

Abstract

This utility model relates to the field of electromagnetic clutch technology and discloses an energy-saving electromagnetic clutch for water pumps, including a first housing, a second housing, a drive shaft, and a driven shaft. One end of the drive shaft extends into the first housing and is equipped with a drive friction plate, while one end of the driven shaft extends into the second housing and is equipped with a driven friction plate. An annular frame is provided on the side of the drive friction plate away from the driven friction plate, and a magnetic ring is fixedly installed inside the annular frame. A suction cup electromagnet corresponding to the magnetic ring is installed on the inner wall of the first housing. This energy-saving electromagnetic clutch for water pumps, through the installation of the magnetic ring and the suction cup electromagnet, allows for the following interaction: when the coil of the suction cup electromagnet is energized, the electromagnet generates an attractive force, causing the magnetic ring to drive the drive friction plate to move synchronously away from the driven friction plate. If the direction of the current is changed, the suction cup electromagnet generates a repulsive force, causing the magnetic ring to push the drive friction plate into contact with the driven friction plate, thereby achieving transmission.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic clutch technology, specifically to an energy-saving electromagnetic clutch for water pumps. Background Technology

[0002] In a water pump, the electromagnetic clutch transmits the power of the motor to the mechanical parts of the pump to drive its operation. When the pump needs to run, the motor starts and drives the electromagnetic clutch to rotate, thus transmitting the motor's power to the pump's mechanical parts and starting the pump. When the pump does not need to run, the motor stops working, the electromagnetic clutch stops rotating, and the pump stops running.

[0003] Because the electromagnetic force generated by the internal coil of the existing water pump electromagnetic clutch often needs to overcome the tension of the spring to make the driving friction plate contact the driven friction plate, the energy consumption is relatively high; the overall structure is relatively complex, it is prone to aging and damage, and it is inconvenient to disassemble and maintain later. Therefore, it is necessary to provide an energy-saving electromagnetic clutch for water pumps to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an energy-saving electromagnetic clutch for water pumps, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: an energy-saving electromagnetic clutch for water pumps, comprising a first housing and a second housing, both housings having a shaft hole at their center, a drive shaft being provided at the shaft hole of the first housing, and a driven shaft being provided at the shaft hole of the second housing, one end of the drive shaft extending into the first housing and having a drive friction plate thereon, one end of the driven shaft extending into the second housing and having a driven friction plate thereon, and an annular frame being provided on the side of the drive friction plate facing away from the driven friction plate;

[0006] A magnetic ring is fixedly installed inside the annular frame, and a suction cup electromagnet corresponding to the magnetic ring is installed on the inner wall of the first outer shell.

[0007] Preferably, the inner side of the annular frame is provided with a plurality of connecting posts, and the annular frame is connected to the active friction plate through the connecting posts.

[0008] Preferably, a spline shaft is provided at the center of the active friction plate near the annular frame, and a shaft hole that mates with the spline shaft is provided at the end of the active shaft near the active friction plate.

[0009] Preferably, the splined shaft is slidably inserted into the shaft hole of the drive shaft at the end away from the active friction plate.

[0010] Preferably, the suction cup electromagnet has a wire connected to its end, and the first outer casing has a wire hole on its side wall for the wire to pass through.

[0011] Preferably, the end of the wire furthest from the suction cup electromagnet is connected to an external power supply device.

[0012] 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 housing via the bearings, and the driven shaft is rotatably connected to the second housing via the bearings.

[0013] Preferably, the openings of the first and second outer shells are connected by a flange.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This energy-saving electromagnetic clutch for water pumps is equipped with a magnetic ring and a suction cup electromagnet. When the coil of the suction cup electromagnet is energized and the current direction matches the magnetic pole direction of the magnetic block (i.e., opposite poles attract), the suction cup electromagnet generates an attractive force that attracts the magnetic ring. At this time, the magnetic ring drives the active friction plate to move synchronously away from the driven friction plate. If the direction of the current is changed so that the magnetic poles of the suction cup electromagnet and the magnetic poles of the magnetic ring are in the same direction (i.e., like poles repel), then the suction cup electromagnet generates a repulsive force, causing the magnetic ring to push the active friction plate into contact with the driven friction plate, thereby realizing transmission. The overall response is rapid and energy-efficient.

[0016] 2. This energy-saving electromagnetic clutch for water pumps facilitates the installation of the magnet ring by setting an annular frame and connecting column, ensuring the stability of the magnet ring; by setting a splined shaft and opening a shaft hole on the drive shaft, the drive friction plate is slidably connected to the drive shaft through the splined shaft, enabling the drive friction plate to move horizontally. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the energy-saving electromagnetic clutch for water pumps of this utility model;

[0018] Figure 2 This is a cross-sectional view of the energy-saving electromagnetic clutch for water pumps of this utility model;

[0019] Figure 3 This is a partial structural diagram of the energy-saving electromagnetic clutch for water pumps of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the drive shaft and the drive friction plate of this utility model.

[0021] Figure 5 This utility model Figure 2 An enlarged schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Outer shell No. 1; 101. Drive shaft; 102. Wire hole; 2. Outer shell No. 2; 201. Driven shaft; 3. Bearing; 4. Driven friction plate; 5. Driven friction plate; 501. Splined shaft; 6. Annular frame; 601. Connecting post; 602. Magnet ring; 7. Suction cup electromagnet; 701. Wire. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 An energy-saving electromagnetic clutch for water pumps includes a first housing 1 and a second housing 2. Both the first housing 1 and the second housing 2 have shaft holes in their centers. A drive shaft 101 is provided at the shaft hole of the first housing 1, and a driven shaft 201 is provided at the shaft hole of the second housing 2. One end of the drive shaft 101 extends into the interior of the first housing 1 and is provided with a drive friction plate 5. One end of the driven shaft 201 extends into the interior of the second housing 2 and is provided with a driven friction plate 4. An annular frame 6 is provided on the side of the drive friction plate 5 away from the driven friction plate 4.

[0025] A magnetic ring 602 is fixedly installed inside the annular frame 6, and a suction cup electromagnet 7 corresponding to the magnetic ring 602 is installed on the inner wall of the first outer casing 1.

[0026] Among them, the inner side of the annular frame 6 is provided with several connecting posts 601. The annular frame 6 is connected to the active friction plate 5 through the connecting posts 601. By setting the annular frame 6 and the connecting posts 601, it is convenient to install the magnet ring 602 and ensure the stability of the magnet ring 602.

[0027] Among them, a splined shaft 501 is provided at the center of the active friction plate 5 near the annular frame 6. The active shaft 101 has a shaft hole that cooperates with the splined shaft 501 at the end near the active friction plate 5. The end of the splined shaft 501 away from the active friction plate 5 can be slidably inserted into the shaft hole of the active shaft 101. By setting the splined shaft 501 and opening the shaft hole on the active shaft 101, the active friction plate 5 is slidably connected to the active shaft 101 through the splined shaft 501, so that the active friction plate 5 can move horizontally.

[0028] The suction cup electromagnet 7 has a wire 701 connected to its end. A wire hole 102 is provided on the side wall of the first housing 1 for the wire 701 to pass through. The end of the wire 701 away from the suction cup electromagnet 7 is connected to an external power supply. When the coil of the suction cup electromagnet 7 is energized and the direction of the current matches the direction of the magnetic poles of the magnet (i.e., opposite poles attract), the suction cup electromagnet 7 will generate an attractive force, attracting the magnet ring 602. At this time, the magnet ring 602 will drive the active friction plate 5 to move synchronously away from the driven friction plate 4. If the direction of the current is changed so that the magnetic poles of the suction cup electromagnet 7 and the magnetic poles of the magnet ring 602 are in the same direction (i.e., like poles repel), then the suction cup electromagnet 7 will generate a repulsive force, causing the magnet ring 602 to push the active friction plate 5 to contact the driven friction plate 4, thereby realizing transmission. The overall response is fast and relatively energy-efficient.

[0029] The drive shaft 101 and the driven shaft 201 are both fitted with bearings 3 on their outer surfaces. The drive shaft 101 is rotatably connected to the first housing 1 through the bearings 3, and the driven shaft 201 is rotatably connected to the second housing 2 through the bearings 3. The openings of the first housing 1 and the second housing 2 are connected by flanges. By providing bearings 3, the drive shaft 101 and the driven shaft 201 can be rotatably connected to the first housing 1 and the second housing 2 respectively. The first housing 1 and the second housing 2 are fixed by flange connection, which effectively ensures the stability of the two after connection and facilitates disassembly and maintenance in the later stage.

[0030] Working principle: When the coil of the suction cup electromagnet 7 is energized and the direction of the current matches the direction of the magnetic poles of the magnet (i.e., opposite poles attract), the suction cup electromagnet 7 will generate an attractive force, attracting the magnet ring 602. At this time, the magnet ring 602 will drive the active friction plate 5 to move synchronously away from the driven friction plate 4. If the direction of the current is changed so that the magnetic poles of the suction cup electromagnet 7 are in the same direction as the magnetic poles of the magnet ring 602 (i.e., like poles repel), then the suction cup electromagnet 7 will generate a repulsive force, causing the magnet ring 602 to push the active friction plate 5 to contact the driven friction plate 4, thereby realizing transmission. The overall response is fast and relatively energy-efficient.

[0031] Furthermore, by setting a splined shaft 501 and opening a shaft hole on the drive shaft 101, the active friction plate 5 is slidably connected to the drive shaft 101 through the splined shaft 501, enabling the active friction plate 5 to move horizontally; by setting an annular frame 6 and a connecting post 601, it is convenient to install the magnet ring 602 and ensure the stability of the magnet ring 602; the first outer shell 1 and the second outer shell 2 are fixed by a flange connection, which effectively ensures the stability of the two after connection and facilitates disassembly and maintenance in the future.

[0032] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving electromagnetic clutch for water pumps, characterized in that, The device includes a first outer shell (1) and a second outer shell (2). Both the first outer shell (1) and the second outer shell (2) have shaft holes in their centers. The first outer shell (1) has a drive shaft (101) in its shaft hole, and the second outer shell (2) has a driven shaft (201) in its shaft hole. One end of the drive shaft (101) extends into the first outer shell (1) and is provided with a drive friction plate (5). One end of the driven shaft (201) extends into the second outer shell (2) and is provided with a driven friction plate (4). The drive friction plate (5) has an annular frame (6) on the side facing away from the driven friction plate (4). A magnet ring (602) is fixedly installed inside the annular frame (6), and a suction cup electromagnet (7) corresponding to the magnet ring (602) is installed on the inner wall of the first outer shell (1).

2. The energy-saving electromagnetic clutch for water pumps according to claim 1, characterized in that, The inner side of the annular frame (6) is provided with a plurality of connecting posts (601), and the annular frame (6) is connected to the active friction plate (5) through the connecting posts (601).

3. The energy-saving electromagnetic clutch for water pumps according to claim 1, characterized in that, The active friction plate (5) has a spline shaft (501) at its center near the annular frame (6), and the active shaft (101) has a shaft hole that cooperates with the spline shaft (501) at one end near the active friction plate (5).

4. The energy-saving electromagnetic clutch for water pumps according to claim 3, characterized in that, The splined shaft (501) is slidably inserted into the shaft hole of the drive shaft (101) at the end away from the active friction plate (5).

5. The energy-saving electromagnetic clutch for a water pump according to claim 1, characterized in that, The suction cup electromagnet (7) has a wire (701) connected to its end, and a wire hole (102) is provided on the side wall of the first outer casing (1) for the wire (701) to pass through.

6. The energy-saving electromagnetic clutch for a water pump according to claim 5, characterized in that, The end of the conductor (701) away from the suction cup electromagnet (7) is connected to an external power supply device.

7. The energy-saving electromagnetic clutch for water pumps according to claim 1, characterized in that, The outer surfaces of both the drive shaft (101) and the driven shaft (201) are fitted with bearings (3). The drive shaft (101) is rotatably connected to the first outer shell (1) through the bearings (3), and the driven shaft (201) is rotatably connected to the second outer shell (2) through the bearings (3).

8. The energy-saving electromagnetic clutch for water pumps according to claim 1, characterized in that, The No. 1 outer shell (1) and the No. 2 outer shell (2) are connected by a flange at their openings.

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