A type of same-side transmission permanent magnet coupling

Abstract

This utility model discloses a same-side transmission permanent magnet coupling, including a conductor rotor and a magnetic rotor. A first flange is provided on one end face of the conductor rotor, and a second flange is provided on the other end face. The conductor rotor is connected to both the first and second flanges by flange bolts. An active end sleeve is provided inside the conductor rotor. One end of the active end sleeve is connected to the first flange by flange bolts, and the other end of the active end sleeve passes through a through hole opened at the axis of the magnetic rotor and the second flange. In this utility model, the active end sleeve is intermittently nested within the hollow shaft cavity of the driven end sleeve, achieving same-side transmission and providing new possibilities for the compactness and flexibility of the equipment. Simultaneously, the speed measuring plate fixed on the driven end sleeve allows for the installation of a speed sensor, enabling real-time monitoring of the rotational speed. This function is of great significance for the stable operation and fault early warning of the equipment.

Description

Technical Field

[0001] This utility model mainly relates to the field of permanent magnet coupling technology, specifically a same-side transmission permanent magnet coupling. Background Technology

[0002] A permanent magnet coupling is a non-contact transmission device that transmits power based on the magnetic interaction of permanent magnets. It uses the magnetic coupling effect between permanent magnets (such as rare earth permanent magnet materials) to transmit torque, and can connect the prime mover and the working machine without mechanical contact.

[0003] Existing permanent magnet couplings rigidly connect the drive shaft at both ends. In high-speed transmission scenarios, mechanical friction causes a transmission efficiency loss of 10%-15%. Furthermore, it is difficult to monitor speed fluctuations in real time in automated production lines. In addition, the traditional structure has a long axial length, which significantly increases the installation difficulty in compact spaces such as robot joints. Utility Model Content

[0004] This utility model addresses the problem that existing technical solutions are too simplistic by providing a same-side transmission permanent magnet coupling, which solves the technical problems mentioned in the background, such as the inability to monitor the operating status in real time and the increased installation difficulty due to the long axial length.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A same-side drive permanent magnet coupling includes a conductor rotor and a magnetic rotor. A first flange is provided on one end face of the conductor rotor, and a second flange is provided on the other end face of the conductor rotor. The conductor rotor is connected to both the first and second flanges by flange bolts. An active end sleeve extending to the outside of the second flange is provided on the internal axis. One end of the active end sleeve is connected to the first flange by flange bolts, and the other end of the active end sleeve passes through a through hole opened at the center of the magnetic rotor and the second flange. The magnetic rotor is sleeved in the inner cavity of the conductor rotor. A driven end sleeve extending to the outside of the second flange is connected to one side of the magnetic rotor by flange bolts.

[0007] Furthermore, threaded through holes for bolting the first flange and the second flange are provided at the edges of both ends of the conductor rotor. The conductor rotor has a hollow internal structure and strip-shaped structures are distributed circumferentially on the inner wall. An arc-shaped groove is formed between adjacent strip-shaped structures. At the same time, a matching arc-shaped protrusion is provided on the outer wall of the magnetic rotor at the position corresponding to the arc-shaped groove.

[0008] Furthermore, the magnetic rotor is coaxially sleeved in the inner cavity of the conductor rotor through the active end bushing, and an air gap is formed between the outer wall of the magnetic rotor and the inner wall of the conductor rotor.

[0009] Furthermore, the first flange is provided with an integral inner disc body on the side adjacent to the conductor rotor. The inner disc body is embedded inside the conductor rotor, and the active end bushing is connected to the inner disc body at the corresponding position by flange bolts.

[0010] Furthermore, a circular through hole is opened at the center point of the second flange, and one end of the driven end bushing passes through the circular through hole and is connected to the corresponding through hole on the surface of the magnetic rotor by flange bolts.

[0011] Furthermore, the driven end bushing has a speed measuring plate fixedly connected to the outer wall of the shaft body on the side adjacent to the magnetic rotor, and the extension section on the other side of the driven end bushing adopts a hollow shaft structure, while the extension shaft of the driving end bushing is intermittently nested in the inner wall of the hollow shaft cavity of the driven end bushing.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The active end bushing is interlocked within the hollow shaft cavity of the driven end bushing, enabling same-side transmission. Its shorter axial length facilitates installation in compact spaces such as robot joints, providing new possibilities for the device's compactness and flexibility. Simultaneously, the tachometer plate fixed to the driven end bushing allows for the installation of a speed sensor, enabling real-time monitoring of rotational speed. This function is crucial for stable operation and fault warning.

[0014] The nested design of the driving and driven end bushings adopts a modular separation design. When disassembling the driven end bushing, only the flange bolts need to be loosened for separation and maintenance, reducing maintenance difficulty and cost. At the same time, this design also facilitates the individual replacement or upgrading of each component, improving the maintainability and flexibility of the equipment.

[0015] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a rear view of the present invention;

[0017] Figure 2 This is a front view of the present invention;

[0018] Figure 3 This is a partial cross-sectional structural diagram of the present invention.

[0019] Figure 4 This is an exploded view of the present invention;

[0020] Numbering on the map:

[0021] 1. Conductor rotor; 2. Magnetic rotor; 3. First flange; 4. Second flange; 5. Driving end bushing; 6. Driven end bushing; 7. Speed ​​measuring plate.

[0022] The accompanying diagrams are primarily three-dimensional to enhance realism, featuring approximately 15 practical structures and around 30 inventive structures. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Please refer to the appendix carefully. Figure 1-4 A same-side transmission permanent magnet coupling includes a conductor rotor 1 and a magnetic rotor 2. A first flange 3 is provided on one end face of the conductor rotor 1, and a second flange 4 is provided on the other end face of the conductor rotor 1. The conductor rotor 1 is connected to the first flange 3 and the second flange 4 by flange bolts. An active end sleeve 5 is provided on the axis inside the conductor rotor 1, extending to the outside of the second flange 4. One end of the active end sleeve 5 is connected to the first flange 3 by flange bolts, and the other end of the active end sleeve 5 passes through a through hole opened at the axis of the magnetic rotor 2 and the second flange 4. The magnetic rotor 2 is sleeved in the inner cavity of the conductor rotor 1. A driven end sleeve 6 extending to the outside of the second flange 4 is connected to one side of the magnetic rotor 2 by flange bolts.

[0026] In this embodiment, as Figure 3 and Figure 4As shown, threaded through holes for bolting the first flange 3 and the second flange 4 are provided at the edges of both end faces of the conductor rotor 1. The conductor rotor 1 has a hollow internal structure and strip-shaped structures are distributed circumferentially on the inner wall. An arc-shaped groove is formed between adjacent strip-shaped structures. The magnetic rotor 2 uses a Halbach array to arrange neodymium iron boron magnets. At the same time, the outer wall of the magnetic rotor 2 has matching arc-shaped protrusions at the corresponding positions of the arc-shaped grooves. On one side of both the conductor rotor 1 and the magnetic rotor 2, installation indicators are engraved at corresponding positions. The symmetrical triangular installation marks engraved on the magnetic rotor 2 and the conductor rotor 1 can achieve quick visual alignment and reduce assembly calibration time. The arc-shaped grooves on the inner wall of the conductor rotor 1 and the arc-shaped protrusions on the outer wall of the magnetic rotor 2 form a precise magnetic field coupling channel, making the air gap magnetic flux density distribution more uniform.

[0027] In this embodiment, as Figure 3 and Figure 4 As shown, the magnetic rotor 2 is coaxially sleeved in the inner cavity of the conductor rotor 1 through the active end bushing 5, and an air gap is formed between the outer wall of the magnetic rotor 2 and the inner wall of the conductor rotor 1. This nested installation method provides great convenience for modular loading and unloading.

[0028] In this embodiment, as Figure 4 As shown, the first flange 3 is provided with an integrated inner disc body on the side adjacent to the conductor rotor 1. The inner disc body is embedded inside the conductor rotor 1, and the active end bushing 5 is connected to the inner disc body at the corresponding position by flange bolts. The first flange 3 and the conductor rotor 1 are connected by the embedded connection of the integrated inner disc body to form a stable mechanical coupling, which effectively disperses the stress concentration phenomenon when transmitting torque. After the inner disc body is embedded inside the conductor rotor 1, it provides a precise installation positioning reference for the active end bushing 5.

[0029] In this embodiment, as Figure 2 and Figure 4 As shown, a circular through hole is opened at the center point of the second flange 4, and one end of the driven end bushing 6 passes through the circular through hole and is connected to the corresponding through hole on the surface of the magnetic rotor 2 by flange bolts. The second flange 4 provides a support point for the installation of the driven end bushing 6. Compared with the traditional two-end separation layout, the driving end bushing 5 adopts a gap-type nesting in the hollow cavity of the driven end bushing 6. The same side provides new possibilities for the compactness and flexibility of the equipment. Moreover, this same-side transmission permanent magnet coupling can realize real-time monitoring of the speed when the driven end outputs the speed and is equipped with a speed sensor. This function is of great significance for the stable operation of the equipment and fault early warning. Combined with the data of the speed sensor, the same-side transmission permanent magnet coupling can also realize the emergency stop function. When the speed is abnormal or exceeds the set range, the power source can be quickly cut off to protect the safety of the equipment and personnel.

[0030] In this embodiment, as Figure 3and Figure 4 As shown, a speed measuring plate 7 is fixedly connected to the outer wall of the shaft body of the driven end bushing 6 on the side adjacent to the magnetic rotor 2. The extension section on the other side of the driven end bushing 6 adopts a hollow shaft structure. Meanwhile, the extension shaft of the driving end bushing 5 is intermittently nested in the inner wall of the hollow shaft cavity of the driven end bushing 6. The surface of the speed measuring plate 7 has through holes for installing speed sensors in annular equidistant arrangement. The annular equidistant mounting holes on the surface of the speed measuring plate 7 allow for redundant arrangement of multiple sensors. Single-point measurement errors are eliminated through phase difference compensation. The intermittent nesting structure of the driving end bushing 5 and the driven end bushing 6 adopts a modular separation design. When disassembling the driven end bushing 6, it is only necessary to loosen the flange bolts for separation and maintenance.

[0031] The specific operating procedure of this utility is as follows: During installation, the first flange 3 is connected to one end of the conductor rotor 1 by flange bolts to ensure that the integrated inner plate on the first flange 3 is embedded inside the conductor rotor 1. One end of the active end bushing 5 is connected and fixed to the inner plate of the first flange 3 by flange bolts.

[0032] The magnetic rotor 2 is coaxially sleeved into the inner cavity of the conductor rotor 1 through the active end bushing 5, ensuring that an appropriate air gap is formed between the outer wall of the magnetic rotor 2 and the inner wall of the conductor rotor 1. The installation is carried out by combining the installation indicators that are symmetrically distributed in a triangular shape and engraved on one side of the conductor rotor 1 and the magnetic rotor 2 at the corresponding positions.

[0033] At the other end of the conductor rotor 1, the second flange 4 is connected to the conductor rotor 1 by flange bolts, ensuring that the circular through hole at the axial center of the second flange 4 is aligned with the through hole of the active end bushing 5 and the magnetic rotor 2.

[0034] One end of the driven end bushing 6 passes through the circular through hole of the second flange 4 and is connected to the through hole at the corresponding position on the surface of the magnetic rotor 2 by flange bolts. When the driven end bushing 6 is installed, the extended shaft of the driving end bushing 5 is intermittently nested inside its extended end shaft.

[0035] When the drive equipment connected to the active end bushing 5 is started, the conductor rotor 1 begins to rotate due to the tightening action of the flange bolts. The rotation of the conductor rotor 1 generates a magnetic field, which is transmitted to the magnetic rotor 2 through the air gap, thereby driving the magnetic rotor 2 to rotate. The rotation of the magnetic rotor 2 drives the driven end bushing 6 and the equipment connected to it to work. The speed measuring plate 7 fixed on the driven end bushing 6 is provided with several round holes for installing speed measuring sensors, which can be used to measure the rotational speed of the magnetic rotor 2, thereby monitoring the operating status of the entire transmission system. By reading the signal of the speed measuring sensor on the speed measuring plate 7 through an external speed measuring device, the real-time monitoring and adjustment of the system speed can be realized.

[0036] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A permanent magnet coupling with same-side transmission, comprising a conductor rotor (1) and a magnetic rotor (2), characterized in that: The conductor rotor (1) has a first flange (3) on one end face and a second flange (4) on the other end face. The conductor rotor (1) is connected to the first flange (3) and the second flange (4) by flange bolts. The conductor rotor (1) has an active end sleeve (5) extending to the outside of the second flange (4) on the axis inside. One end of the active end sleeve (5) is connected to the first flange (3) by flange bolts. The other end of the active end sleeve (5) passes through the through hole opened at the axis of the magnetic rotor (2) and the second flange (4). The magnetic rotor (2) is sleeved in the inner cavity of the conductor rotor (1). One side of the magnetic rotor (2) is connected to a driven end sleeve (6) extending to the outside of the second flange (4) by flange bolts.

2. The same-side transmission permanent magnet coupling according to claim 1, characterized in that: The conductor rotor (1) has threaded through holes at the edges of both ends for bolting the first flange (3) and the second flange (4). The conductor rotor (1) has a hollow structure inside and strip structures are distributed in a ring around the inner wall. An arc-shaped groove is formed between adjacent strip structures. At the same time, the outer wall of the magnetic rotor (2) has matching arc-shaped protrusions at the positions corresponding to the arc-shaped grooves.

3. A same-side transmission permanent magnet coupling according to claim 2, characterized in that: The magnetic rotor (2) is coaxially sleeved in the inner cavity of the conductor rotor (1) through the active end bushing (5), and an air gap is formed between the outer wall of the magnetic rotor (2) and the inner wall of the conductor rotor (1).

4. A same-side transmission permanent magnet coupling according to claim 1, characterized in that: The first flange (3) is provided with an integral inner plate on the side adjacent to the conductor rotor (1). The inner plate is embedded inside the conductor rotor (1), and the active end bushing (5) is connected to the inner plate by flange bolts at the corresponding position.

5. A same-side transmission permanent magnet coupling according to claim 1, characterized in that: A circular through hole is opened at the center point of the second flange (4), and one end of the driven end bushing (6) passes through the circular through hole and is connected to the through hole at the corresponding position on the surface of the magnetic rotor (2) by flange bolts.

6. A same-side transmission permanent magnet coupling according to claim 1, characterized in that: The driven end bushing (6) has a speed measuring plate (7) fixedly connected to the outer wall of the shaft on the side adjacent to the magnetic rotor (2), and the extension section on the other side of the driven end bushing (6) adopts a hollow shaft structure. Meanwhile, the extension shaft of the driving end bushing (5) is intermittently nested in the hollow shaft cavity of the driven end bushing (6).

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