Modular motor magnetic scale for ease of commissioning

Abstract

The utility model discloses a modularization motor magnetic scale convenient to debug relates to magnetic scale technical field, including motor, annular plate no.

Description

Technical Field

[0001] This utility model relates to the field of magnetic scale technology, specifically a modular electric motor magnetic scale that is easy to debug. Background Technology

[0002] In the field of industrial automation and precision control, electric motors are the core of power, and the accurate detection of their rotor position and speed is the foundation for achieving high-precision operation of equipment. Magnetic scales have become a key component for electric motor position detection due to their advantages such as strong anti-interference and adaptability to harsh environments.

[0003] However, existing electric motor magnetic scales suffer from several drawbacks in practical applications: Firstly, traditional magnetic scales are mostly "customized integrated structures," requiring complex tooling for the installation of the magnetic ring and reading head. Furthermore, different motor models necessitate redesigning the bracket and adjusting the installation reference, resulting in a cumbersome and time-consuming installation process that is difficult to quickly adapt to the diverse motor equipment on production lines. Secondly, damaged components of the electric motor magnetic scale require complete replacement, leading to high maintenance costs and long cycles, severely impacting production line operation and maintenance efficiency. Therefore, those skilled in the art have developed a modular electric motor magnetic scale that is easy to debug, addressing the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to provide a modular electric motor magnetic scale that is easy to debug, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A modular electric motor magnetic scale that is easy to debug includes an electric motor, a first annular plate, a second annular plate, and a reading head. The power output end of the electric motor is fixedly connected to a rotating shaft. The second annular plate is located at the front end of the electric motor. Several sets of connecting rods are fixedly connected to the front end of the second annular plate. The front end of the connecting rods is fixedly connected to the first annular plate. A mounting base is fixedly connected to the front of the first annular plate. A mounting plate is fitted inside the mounting base. The reading head is fixedly connected to the front end of the mounting plate. An annular groove is opened on the front of the first annular plate. A magnetic grid ring is fitted inside the annular groove. A limit ring is provided in front of the magnetic grid ring, wherein the limit ring can restrict the magnetic grid ring within the annular groove.

[0006] As a further embodiment of this utility model: the limiting ring is threaded with two left and right fixing screws, wherein the fixing screws are threaded to the annular plate and the limiting ring can be fixed to the annular plate. The annular plate has several sets of mounting holes, and each mounting hole is provided with a fixing screw. The fixing screw is threaded to the motor housing and the annular plate can be fixed to the motor.

[0007] As a further embodiment of this utility model: two slide rails are fixedly connected to the inner wall of the magnetic grating ring, and a slider is slidably connected to each slide rail. A tensioning disc is threadedly connected to one side of each slide rail. Tightening the tensioning disc can fix the slider on the slide rail, while loosening the tensioning disc can allow the slider to slide on the slide rail.

[0008] As a further embodiment of this utility model: a guide rail is fixedly connected to the left side of the mounting base, wherein the back of the guide rail is fixedly connected to an annular plate, and a spring groove is provided on the front side of the guide rail, wherein a spring rod is provided in the spring groove, wherein the left end of the spring rod passes through the guide rail, and the right end of the spring rod passes through the mounting base.

[0009] As a further embodiment of this utility model: a spring block is fixedly connected to the spring rod, wherein the spring block is locked in the spring groove, a fixing ring is fixedly connected to the left end of the spring rod, a slot is opened on the left side of the mounting plate, wherein the right end of the spring rod is inserted into the slot, and a controller is externally mounted on the motor, wherein the controller is connected to the reading head signal.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. Modular Adaptive Design: The ring plate can be quickly connected to the motor via pre-set holes and fixing screws, eliminating the need for additional custom brackets; the magnetic ring is fixed by the slider, slide rail and rotating shaft, adapting to rotors with different shaft diameters, standardizing the installation process and significantly shortening the installation time.

[0011] 2. Quick-locking structure: The mounting plate and mounting base achieve "plug-in + elastic locking" through spring rods and slots. Insertion fixes the device in place, and disassembly only requires pulling the spring rod. No tools are needed, and a single person can complete the disassembly and assembly of the testing unit, making it especially suitable for rapid on-site maintenance scenarios.

[0012] 3. Intuitive signal feedback: The magnetic grating ring rotates with the rotating shaft. The magnetic sensitive element of the reading head senses the change in the magnetic field and converts the magnetic signal into a pulse electrical signal. After the electrical signal is transmitted to the external controller, the controller calculates the pulse period, phase or cumulative number to accurately analyze the real-time angular position, speed and direction of the rotating shaft, providing position feedback for the closed-loop control of the motor.

[0013] 4. Modular and easy to replace: The magnetic grating ring and reading head are independent modules. The magnetic grating ring can be removed from the annular groove for cleaning and replacement. The reading head can be quickly replaced by inserting and removing it through the mounting plate. If a component fails, the whole device does not need to be scrapped, thus reducing maintenance costs. In addition, the same device can be adapted to motors with different precision requirements by replacing the magnetic grating ring with different magnetic grating scales. There is no need to configure a separate magnetic grating scale for each motor, which increases the equipment reuse rate and lowers the long-term use cost. Attached Figure Description

[0014] Figure 1This is a schematic diagram of a modular electric motor magnetic scale that is easy to debug.

[0015] Figure 2 This is a schematic diagram of the limit ring and magnetic ring in a modular electric motor magnetic scale that is easy to debug.

[0016] Figure 3 This is a schematic diagram of the slider and tension disc in a modular electric motor magnetic scale that is easy to debug.

[0017] Figure 4 This is a schematic diagram of the mounting plate and reading head in a modular electric motor magnetic scale that is easy to debug.

[0018] Figure 5 This is a schematic diagram of the structure of ring plate one and ring plate two in a modular electric motor magnetic scale that is easy to debug.

[0019] Figure 6 This is a schematic diagram of the mounting base and spring rod in a modular electric motor magnetic scale that is easy to debug.

[0020] In the diagram: 1. Motor; 2. Rotating shaft; 3. Annular plate one; 4. Annular plate two; 5. Mounting port; 6. Fixing screw two; 7. Limiting ring; 8. Fixing screw one; 9. Magnetic ring; 10. Slider; 11. Tensioner plate; 12. Slide rail; 13. Mounting plate; 14. Reading head; 15. Slot; 16. Connecting rod; 17. Mounting base; 18. Spring groove; 19. Guide rail; 20. Spring rod; 21. Spring block; 22. Annular groove. Detailed Implementation

[0021] To facilitate understanding of the technical means, creative features, objectives, and effects of this utility model, the following detailed description of specific embodiments further illustrates this utility model. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Please see Figures 1-6In this embodiment of the present invention, a modular electric motor magnetic scale that is easy to debug includes a motor 1, an annular plate 3, an annular plate 4, and a reading head 14. The motor 1 has a rotating shaft 2 fixedly connected to its power output end. An annular plate 4 is located at the front end of the motor 1. Several sets of connecting rods 16 are fixedly connected to the front end of the annular plate 4. Annular plate 3 is fixedly connected to the front end of each connecting rod 16. A mounting base 17 is fixedly connected to the front of annular plate 3. A mounting plate 13 is fitted inside the mounting base 17. A reading head 14 is fixedly connected to the front end of the mounting plate 13. 4. The annular plate 3 has an annular groove 22 on its front side. A magnetic grating ring 9 is fitted inside the annular groove 22. A limit ring 7 is provided in front of the magnetic grating ring 9. The limit ring 7 can restrict the magnetic grating ring 9 within the annular groove 22. Two fixing screws 8 are threaded onto the limit ring 7. The fixing screws 8 are threaded onto the annular plate 3 and can fix the limit ring 7 to the annular plate 3. The annular plate 4 has several sets of mounting holes 5. Each mounting hole 5 is provided with a fixing screw 6. The screw 26 is threaded onto the housing of the motor 1, and the annular plate 24 can be fixed onto the motor 1 by fixing screw 26. Two slide rails 12 are fixedly connected to the inner wall of the magnetic grid ring 9, and sliders 10 are slidably connected to each slide rail 12. A tensioning disc 11 is threaded onto one side of each slide rail 12. Tightening the tensioning disc 11 fixes the slider 10 onto the slide rail 12, while loosening the tensioning disc 11 allows the slider 10 to slide on the slide rail 12. A guide rail 19 is fixedly connected to the left side of the mounting base 17, and the back of the guide rail 19 is fixedly connected to the annular plate 24. On the top of the guide rail 19, a spring groove 18 is provided on the front side, and a spring rod 20 is provided in the spring groove 18. The left end of the spring rod 20 passes through the guide rail 19, and the right end of the spring rod 20 passes through the mounting base 17. A spring block 21 is fixedly connected to the spring rod 20, and the spring block 21 is locked in the spring groove 18. A fixing ring is fixedly connected to the left end of the spring rod 20. A slot 15 is provided on the left side of the mounting plate 13, and the right end of the spring rod 20 is inserted into the slot 15. The motor 1 has an external controller, which is connected to the reading head 14 for signal transmission.

[0023] The working principle of this invention is as follows: In this device, the surface of the magnetic grating ring 9 is pre-fabricated with alternating N and S pole magnetic segments, forming a periodic magnetic field scale; the reading head 14 has a built-in magnetic sensitive element (such as a Hall sensor or magnetoresistive chip) that maintains a preset detection distance with the magnetic grating ring 9. In use, firstly, the annular plate 2 4 can be fixed to the motor 1 using fixing screws 2 6. The screw mounting holes on the motor 1 are preset around the rotating shaft 2, so that the rotating shaft 2 is located at the center of the annular plate 2 4. Then, manually slide the slider 10 towards the center, so that the two sliders 10 clamp the rotating shaft 2 in the middle. Next, tighten the tensioning disc 11 to fix the slider 10 on the slide rail 12, thus fixing the magnetic grating ring 9 to the rotating shaft 2. Then, start the motor 1 to drive the rotating shaft 2 to rotate, and the rotating shaft 2 drives the magnetic grating ring 9 to rotate. The periodic magnetic field on the surface of the magnetic grating ring 9 changes regularly with the displacement of the rotating shaft 2. At this time, the magnetic sensitive element of the reading head 14 senses the change in the magnetic field and converts the magnetic signal into a magnetic signal. The pulsed electrical signal is transmitted to the external controller. The controller calculates the pulse period, phase, or cumulative count to accurately analyze the real-time angular position, speed, and direction of rotation of the rotating shaft 2, providing position feedback for the closed-loop control of the motor 1. When replacement or maintenance is required, pull the fixing ring at the left end of the spring rod 20 to the left, causing the right end of the spring rod 20 to disengage from the slot 15 of the mounting plate 13. After releasing the lock on the mounting plate 13, the mounting plate 13 and the reading head 14 can be pulled out for replacement or maintenance. Afterward, the spring rod 20 is automatically reset and locked under the action of the spring force when reinserted, and the debugging can be completed without tools. In addition, the limit ring 7 can be removed by unscrewing the fixing screw 8, and the magnetic grating ring 9 can be taken out from the annular groove 22 for easy cleaning of the surface of the magnetic grating ring 9 or replacement of parts. If it is necessary to adapt to different detection accuracy scenarios, the magnetic grating ring 9 with the corresponding magnetic grating scale can be directly replaced without modifying the overall installation structure.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A modular electric motor magnetic scale that is easy to debug, comprising an electric motor (1), a first annular plate (3), a second annular plate (4), and a reading head (14), characterized in that, The motor (1) has a rotating shaft (2) fixedly connected to its power output end. The front end of the motor (1) is provided with an annular plate two (4). The front end of the annular plate two (4) is fixedly connected with several sets of connecting rods (16). The front end of the connecting rods (16) is fixedly connected with an annular plate one (3). The front of the annular plate one (3) is fixedly connected with a mounting base (17). The mounting base (17) is fitted with a mounting plate (13). The front end of the mounting plate (13) is fixedly connected with a reading head (14). The front of the annular plate one (3) is provided with an annular groove (22). The annular groove (22) is fitted with a magnetic grating ring (9). A limit ring (7) is provided in front of the magnetic grating ring (9).

2. The modular electric motor magnetic scale for easy debugging according to claim 1, characterized in that, The limiting ring (7) is threaded with two fixing screws (8) on the left and right sides, and the fixing screws (8) are threaded onto the annular plate (3).

3. The modular electric motor magnetic scale for easy debugging according to claim 1, characterized in that, The annular plate (4) has several sets of mounting ports (5), and each mounting port (5) is provided with a fixing screw (6), which is threaded onto the outer casing of the motor (1).

4. The modular electric motor magnetic scale for easy debugging according to claim 1, characterized in that, The magnetic grating ring (9) has two slide rails (12) fixedly connected to its inner wall. Each slide rail (12) has a slider (10) slidably connected to it. Each slide rail (12) has a tensioning disc (11) threadedly connected to one side.

5. A modular electric motor magnetic scale for easy debugging according to claim 1, characterized in that, The mounting base (17) is fixedly connected to a guide rail (19) on the left side, wherein the back of the guide rail (19) is fixedly connected to the annular plate (3).

6. A modular electric motor magnetic scale for easy debugging according to claim 5, characterized in that, The guide rail (19) has a spring groove (18) on its front side, and a spring rod (20) is provided in the spring groove (18). The left end of the spring rod (20) passes through the guide rail (19), and the right end of the spring rod (20) passes through the mounting base (17).

7. A modular electric motor magnetic scale for easy debugging according to claim 6, characterized in that, A spring block (21) is fixedly connected to the spring rod (20), wherein the spring block (21) is engaged in the spring groove (18), and a fixing ring is fixedly connected to the left end of the spring rod (20).

8. A modular electric motor magnetic scale for easy debugging according to claim 1, characterized in that, The mounting plate (13) has a slot (15) on the left side, in which the right end of the spring rod (20) is inserted into the slot (15), and the motor (1) has an external controller, in which the controller is connected to the reading head (14) via signal.

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