A dual shaft magnetic powder clutch

Abstract

The utility model relates to mechanical transmission control technical field especially a kind of double-shaft magnetic powder clutch, including first magnetic yoke, second magnetic yoke, output shaft and input shaft, this device is double fixed to the part on shaft by snap spring and the recess and protruding of shaft, it is more convenient to operate while it can greatly shorten installation time, improve the installation efficiency and maintenance efficiency of this device, and can reduce vibration and displacement, can reduce the situation that traditional clutch is prone to performance decline due to vibration and wear, and prolong the service life of this device, the magnetic powder of this device is evenly combined double-shaft geometry layout between input shaft and output shaft, can enhance magnetic field uniformity, ensure excitation current and transmission torque linear relationship, improve control accuracy.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission control technology, and in particular to a dual-shaft magnetic powder clutch. Background Technology

[0002] A magnetic powder clutch is a type of clutch based on electromagnetic principles and utilizing magnetic powder to transmit torque. When the excitation coil is not energized, the magnetic powder is in a loose, flowing state and is pressed against the inner wall of the clamping ring under the action of centrifugal force. The output shaft and the input shaft are not in contact, and the clutch is in an idle state. When the excitation coil is energized, a working magnetic flux is generated, and the magnetic powder forms a magnetic powder chain under the action of magnetic lines of force. At this time, the output shaft can drive the input shaft to rotate.

[0003] However, existing magnetic powder clutches have the following problems: In existing technologies, magnetic powder clutches mostly adopt a single-shaft structure, which suffers from problems such as slow response speed, insufficient torque control accuracy, and complex maintenance. Especially in scenarios involving torque transmission in the 5kg range, traditional clutches are prone to performance degradation due to vibration and wear, affecting equipment stability and energy efficiency. This utility model aims to solve the above-mentioned defects by optimizing magnetic powder distribution and excitation efficiency through a dual-shaft design. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, a dual-shaft magnetic powder clutch is provided.

[0005] The specific technical solution is as follows: Design a dual-shaft magnetic powder clutch, including a first magnetic yoke, a second magnetic yoke, an output shaft, and an input shaft. The second magnetic yoke is bolted to one side of the first magnetic yoke. A coil is fixedly connected inside the first magnetic yoke and the second magnetic yoke. A fastener is fastened to a first end cover on one side of the first magnetic yoke. A first bearing and a second bearing are respectively connected to the center of the first end cover by a sleeve. A fastener is fastened to a second end cover on one side of the second magnetic yoke. A third bearing and a fourth bearing are respectively connected to the center of the second end cover by a sleeve.

[0006] Preferably, a first retaining ring is provided on one side of the first bearing, and the first retaining ring is connected to the output shaft by a snap-fit ​​method. A second retaining ring is provided on one side of the second bearing, and the second retaining ring is connected to the first end cover by a snap-fit ​​method.

[0007] Preferably, a fourth retaining ring is provided on one side of the fourth bearing, and the fourth retaining ring is connected to the input shaft by a snap-fit ​​mechanism. A third retaining ring is provided on one side of the third bearing, and the third retaining ring is connected to the second end cover by a snap-fit ​​mechanism.

[0008] Preferably, one end of the input shaft is embedded at the center of the first magnetic yoke and the second magnetic yoke, and one end of the output shaft is embedded in the input shaft.

[0009] Preferably, the first magnetic yoke and the second magnetic yoke are provided with heat sinks at their centers, the heat sinks are fastened to the output shaft, and the input shaft is fixedly connected to an inner lip partition at one end near the heat sink.

[0010] The above technical solution has the following advantages or beneficial effects: 1. This device uses a snap ring and grooves and protrusions on the shaft to limit the movement of parts on the shaft. It is easy to operate and can significantly shorten the installation time, thereby improving the installation and maintenance efficiency of the device.

[0011] 2. This device uses a snap ring and grooves and protrusions on the shaft to double fix the parts on the shaft, which can reduce vibration and displacement, reduce the performance degradation of traditional clutches due to vibration and wear, and extend the service life of this device.

[0012] 3. By uniformly distributing magnetic powder between the input and output shafts, combined with the dual-axis geometry, the uniformity of the magnetic field can be enhanced, ensuring a linear relationship between the excitation current and the transmitted torque, and improving control accuracy. Attached Figure Description

[0013] Embodiments of the present invention will be described more fully with reference to the accompanying drawings. However, the accompanying drawings are for illustration and explanation only and do not constitute a limitation on the scope of the present invention.

[0014] Figure 1 This is a schematic diagram of the left-hand structure of a dual-shaft magnetic powder clutch proposed in this utility model; Figure 2 This is a schematic diagram of the right-hand structure of a dual-shaft magnetic powder clutch proposed in this utility model; Figure 3 An exploded view of a dual-shaft magnetic powder clutch proposed in this utility model; Figure 4 This is a cross-sectional view of a dual-shaft magnetic powder clutch proposed in this utility model.

[0015] The reference numerals in the above figures indicate: 1. First magnetic yoke; 2. Second magnetic yoke; 3. Coil; 4. First snap ring; 5. First bearing; 6. First end cap; 7. Second bearing; 8. Second snap ring; 9. Heat sink; 10. Inner lip spacer; 11. Output shaft; 12. Input shaft; 13. Third snap ring; 14. Third bearing; 15. Second end cap; 16. Fourth bearing; 17. Fourth snap ring. Detailed Implementation

[0016] 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.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0019] Reference Figure 1-4 A dual-shaft magnetic powder clutch includes a first magnetic yoke 1, a second magnetic yoke 2, an output shaft 11, and an input shaft 12. The second magnetic yoke 2 is bolted to one side of the first magnetic yoke 1. A coil 3 is internally fixedly connected to both the first and second magnetic yokes. A first end cover 6 is fastened to one side of the first magnetic yoke 1. A first bearing 5 and a second bearing 7 are respectively connected to the center of the first end cover 6 via a sleeve connection. A second end cover 15 is fastened to one side of the second magnetic yoke 2. A third bearing 14 and a fourth bearing 16 are respectively connected to the center of the second end cover 15 via a sleeve connection. This device is model XW-PC-5KG-2, and the magnetic yoke of this device serves as... The body of the magnetic powder brake provides a stable working cavity for the brake. The coil, as the core component for controlling the torque of the magnetic powder brake, provides the basis for the adjustable magnetic field force of the working cavity. The output shaft 11 and the input shaft 12 are made of high magnetic permeability material. After the coil is fixed inside the magnetic yoke, magnetic powder needs to be injected between the input shaft 12 and the output shaft 11 and sealed to form a closed magnetic field path. When the coil 3 is not energized, the output shaft 11 and the input shaft 12 are not in contact, and the input shaft 12 rotates freely. When the coil 3 is energized, a working magnetic flux is generated, and the magnetic powder forms a magnetic powder chain under the action of magnetic lines of force. At this time, the input shaft 12 can drive the output shaft 11 to rotate.

[0020] Furthermore, a first retaining ring 4 is provided on one side of the first bearing 5, and the first retaining ring 4 is connected to the output shaft 11 by a snap-fit. A second retaining ring 8 is provided on one side of the second bearing 7, and the second retaining ring 8 is connected to the first end cover 6 by a snap-fit. The first bearing 5 and the second bearing 7 are used to support the output shaft 11, and the first retaining ring 4 and the second retaining ring 8 are used to limit the first end cover 6 and the first bearing 5 and the second bearing 7.

[0021] Furthermore, a fourth retaining ring 17 is provided on one side of the fourth bearing 16, which connects to the input shaft 12 by snapping. A third retaining ring 13 is provided on one side of the third bearing 14, which connects to the second end cover 15 by snapping. The third bearing 14 and the fourth bearing 16 are used to support the input shaft 12, and the third retaining ring 13 and the fourth retaining ring 17 are used to limit the second end cover 15 and the third bearing 14 and the fourth bearing 16.

[0022] Furthermore, one end of the input shaft 12 is embedded in the center of the first magnetic yoke 1 and the second magnetic yoke 2, and one end of the output shaft 11 is embedded in the input shaft 12. Magnetic powder is injected between the input shaft 12 and the output shaft 11. The magnetic powder is made of iron-cobalt-nickel alloy.

[0023] Furthermore, the first magnetic yoke 1 and the second magnetic yoke 2 are provided with heat sinks 9 at their centers. The heat sinks 9 are fastened to the output shaft 11. The input shaft 12 is fixedly connected to the inner lip partition 10 at one end near the heat sinks 9. The heat sinks 9 can dissipate heat when the device is working, prevent the magnetic powder brake from overheating and causing failure after working for a long time, and extend the service life of the magnetic powder brake. The inner lip partition 10 is used to block the magnetic powder.

[0024] Working principle: When coil 3 is not energized, output shaft 11 and input shaft 12 are not in contact, and input shaft 12 rotates freely. When coil 3 is energized, a working magnetic flux is generated, and magnetic powder forms a magnetic powder chain under the action of magnetic lines of force. At this time, input shaft 12 can drive output shaft 11 to rotate. This device uses a snap ring and the grooves and protrusions of the shaft to double fix the parts on the shaft. It is convenient to operate and can significantly shorten the installation time, improve the installation and maintenance efficiency of this device, reduce vibration and displacement, reduce the performance degradation of traditional clutches due to vibration and wear, and extend the service life of this device. The magnetic powder of this device is uniformly combined in the dual-shaft geometric layout between input shaft 12 and output shaft 11, which can enhance the uniformity of the magnetic field, ensure that the excitation current and the transmitted torque are linearly related, and improve the control accuracy.

[0025] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-shaft magnetic powder clutch, characterized in that: The system includes a first magnetic yoke (1), a second magnetic yoke (2), an output shaft (11), and an input shaft (12). The second magnetic yoke (2) is bolted to one side of the first magnetic yoke (1). A coil (3) is fixedly connected inside the first magnetic yoke (1) and the second magnetic yoke (2). A first end cover (6) is fastened to one side of the first magnetic yoke (1). The first bearing (5) and the second bearing (7) are respectively connected to the center of the first end cover (6) by a sleeve connection on both sides. A second end cover (15) is fastened to one side of the second magnetic yoke (2). The third shaft is respectively connected to the center of the second end cover (15) by a sleeve connection on both sides. The first bearing (5) has a first retaining ring (4) on one side, which is connected to the output shaft (11) by a snap-fit. The second bearing (7) has a second retaining ring (8) on one side, which is connected to the first end cover (6) by a snap-fit. The fourth bearing (16) has a fourth retaining ring (17) on one side, which is connected to the input shaft (12) by a snap-fit. The third bearing (14) has a third retaining ring (13) on one side, which is connected to the second end cover (15) by a snap-fit.

2. The dual-shaft magnetic powder clutch according to claim 1, characterized in that: One end of the input shaft (12) is embedded in the center of the first magnetic yoke (1) and the second magnetic yoke (2), and one end of the output shaft (11) is embedded in the input shaft (12).

3. A dual-shaft magnetic powder clutch according to claim 1, characterized in that: The first magnetic yoke (1) and the second magnetic yoke (2) are provided with heat sinks (9) at their centers. The heat sinks (9) are fastened to the output shaft (11). The input shaft (12) is fixedly connected to the inner lip partition (10) at one end near the heat sinks (9).

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