Power structure and controlled device
By setting transmission and driven components in the power structure and using detection components to measure the output shaft angle, the problem of readjusting the power structure after a power outage is solved, and the effect of quickly restoring the output shaft position is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN MAILI SAFETY EQUIP CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-16
AI Technical Summary
In existing technologies, it is difficult to measure the rotation angle of the output shaft in the power structure, which means that the output shaft position needs to be readjusted after a power outage, wasting time.
By setting transmission and driven components in the power structure, the rotation angle of the driven component is measured by a detection component, thereby indirectly obtaining the rotation angle of the output shaft. The angle of the output shaft is recorded and restored after power failure so that it can return to the position before power failure when the machine resumes operation.
It enables the output shaft to be restored to its pre-power-off position without the need for readjustment after a power outage, saving time.
Smart Images
Figure CN224367662U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electric motors, specifically a power structure and a controlled device. Background Technology
[0002] Motors are often connected to speed reducers, which convert the motor's high-speed, low-torque output into low-speed, high-torque output, thus providing power to the controlled equipment. In related technologies, it is difficult to measure the rotation angle of the output shaft in the power structure. After a power outage, the output shaft position needs to be readjusted, wasting time. Utility Model Content
[0003] Therefore, it is necessary to provide a power structure that can measure the rotation angle of the output shaft.
[0004] One embodiment of this application provides a power structure.
[0005] In the aforementioned power structure, when the motor assembly drives the transmission assembly to rotate, the output shaft drives the transmission component to rotate together. The driven component rotates around the rotation center together with the transmission component. The sensing part located at the rotation center of the driven component rotates. The rotation angle of the sensing part can be measured by the detection element corresponding to the sensing part, thereby obtaining the rotation angle of the output shaft.
[0006] In some embodiments, the driving member and the driven member rotate at the same speed.
[0007] In some embodiments, both the transmission member and the driven member are gears, and the transmission member meshes with the driven member so that the driven member can rotate together with the transmission member.
[0008] In some embodiments, the detection element is a Hall angle sensor and the sensing part is a magnet, enabling the detection element to measure the rotation angle of the magnet.
[0009] In some embodiments, the driven member is rotatably connected to a rotating shaft, which passes through the rotation center of the driven member; a groove is provided at one end of the rotating shaft facing the detection member, and the sensing part is provided in the groove.
[0010] In some embodiments, the inner wall of the storage compartment is fixedly provided with a first mounting plate and a second mounting plate, the two ends of the rotating shaft are respectively rotatably disposed on the first mounting plate and the second mounting plate, and the end of the rotating shaft near the detection element passes through the mounting plate, and the output shaft passes through the first mounting plate and the second mounting plate to position the transmission element and the driven element.
[0011] In some embodiments, the storage compartment includes a cylindrical body, a front cover, and a rear cover. The cylindrical body has a receiving cavity, and the front cover and the rear cover are respectively connected to the two ends of the cylindrical body to close the receiving cavity. The output shaft passes through the front cover.
[0012] In some embodiments, the front cover and / or the rear cover are provided with an annular groove, and the cylindrical body is provided with an annular protrusion. The annular groove can accommodate the annular protrusion to position the cylindrical body for the front cover and / or the rear cover.
[0013] In some embodiments, the power structure further includes a sealing ring disposed in the annular groove and abutting against the annular protrusion.
[0014] In some embodiments, this application also provides a controlled device, including the power structure as described in any of the above embodiments.
[0015] The aforementioned controlled equipment employs the aforementioned power structure, which can record the angle of the output shaft after a power outage. When the power structure resumes operation, the output shaft can rotate to the angle before the power outage, thereby returning the controlled equipment to its position before the power outage and saving time spent readjusting the controlled equipment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the power structure in one embodiment of this application.
[0017] Figure 2 for Figure 1 Exploded view of the dynamic structure.
[0018] Figure 3 for Figure 1 Cross-sectional view of the dynamic structure.
[0019] Figure 4 for Figure 1 A schematic diagram of the structure of the test component.
[0020] Figure 5 for Figure 3 A magnified view of a portion of point A in the middle.
[0021] Figure 6 for Figure 3 A magnified view of a section at point B.
[0022] Explanation of main component symbols
[0023] 100. Power structure; 10. Storage compartment; 101. Receiving cavity; 11. Cylindrical body; 111. Annular protrusion; 112. Oil seal cover; 113. Waterproof connector; 12. Front cover; 121. Annular groove; 13. Rear cover; 14. Sealing ring; 15. First mounting plate; 16. Second mounting plate; 20. Motor assembly; 30. Transmission assembly; 31. Output shaft; 40. Test assembly; 41. Transmission component; 42. Driven component; 421. Sensing part; 422. Rotating shaft; 4221. Groove; 4222. Bearing; 43. Detection component; 44. Circuit board; 50. Sealing ring; X. Rotation center. Detailed Implementation
[0024] The technical solution of this application will now be described with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.
[0026] Motors are often connected to speed reducers, which convert the motor's high-speed, low-torque output into low-speed, high-torque output, thus providing power to the controlled equipment. In related technologies, it is difficult to measure the rotation angle of the output shaft in the power structure. After a power outage, the output shaft position needs to be readjusted, wasting time.
[0027] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0028] Please see Figure 1 An embodiment of this application provides a controlled device (not shown), including a power structure 100, which provides power for the operation of the controlled device. The controlled device may include robot joint drives, transportation vehicles, power tools, mechatronics equipment in automated production lines, etc., and this application does not impose any limitations on this.
[0029] Please combine Figure 1 and Figure 2 In some embodiments, the power structure 100 includes a storage compartment 10, a motor assembly 20, a transmission assembly 30, and a testing assembly 40. The motor assembly 20, transmission assembly 30, and testing assembly 40 are all located inside the storage compartment 10. The motor assembly 20 is connected to the transmission assembly 30 to drive the transmission assembly 30 to rotate. The transmission assembly 30 has an output shaft 31 that extends outside the storage compartment 10 and is connected to a controlled device to drive the controlled device to operate. The testing assembly 40 is connected to the area of the output shaft 31 located inside the storage compartment 10 to rotate with the output shaft 31 and measure the rotation angle of the output shaft 31.
[0030] Please combine Figure 3 and Figure 4The test assembly 40 includes a transmission component 41, a driven component 42, and a detection component 43. The transmission component 41 is connected to the output shaft 31 and rotates with it, ensuring that the output shaft 31 rotates at the same speed as the transmission component 41. The driven component 42 is connected to the transmission component 41 and is configured to rotate about a rotation center X when the transmission component 41 rotates with the output shaft 31. A sensing element 421 is provided at the rotation center X of the driven component 42, and the detection component 43 corresponds to the sensing element 421 to measure the rotation angle of the driven component 42.
[0031] When the motor assembly 20 drives the transmission assembly 30 to rotate, the output shaft 31 drives the transmission component 41 to rotate together. The driven component 42 rotates around the rotation center X together with the transmission component 41. The sensing part 421 located at the rotation center X of the driven component 42 rotates. The rotation angle of the sensing part 421 can be measured by the detection component 43 corresponding to the sensing part 421, thereby obtaining the rotation angle of the output shaft 31.
[0032] When the power structure 100 is powered off, it can record the angle of the output shaft 31. When the power structure 100 resumes operation, it can read the current angle of the output shaft 31. By comparing the current angle with the angle before the power failure, it drives the output shaft 31 to rotate to the angle before the power failure, so that the controlled device returns to the position before the power failure, saving the time of readjusting the controlled device.
[0033] Please combine Figure 1 and Figure 2 In some embodiments, the storage compartment 10 includes a cylindrical body 11, a front cover 12, and a rear cover 13. The cylindrical body 11 has a receiving cavity 101, in which the motor assembly 20, the transmission assembly 30, and the testing assembly 40 are all disposed. The front cover 12 and the rear cover 13 are respectively connected to both ends of the cylindrical body 11 to seal the receiving cavity 101, preventing water from entering the receiving cavity 101 and damaging the motor assembly 20, the transmission assembly 30, or the testing assembly 40. An output shaft 31 passes through the front cover 12 to output power to the controlled device.
[0034] Please see Figure 3 The receiving cavity 101 is cylindrical to fit the shape of the motor assembly 20 and the transmission assembly, so as to facilitate the assembly of the motor assembly 20 and the transmission assembly into the receiving cavity 101.
[0035] Please see Figure 5 In some embodiments, the front cover 12 is provided with an annular groove 121, which surrounds the front cover 12. The cylindrical body 11 is provided with an annular protrusion 111 at one end near the front cover 12, and the annular groove 121 can accommodate the annular protrusion 111 so that the cylindrical body 11 positions the front cover 12.
[0036] In some embodiments, the rear cover 13 is also provided with an annular groove 121, and the cylindrical body 11 is provided with an annular protrusion 111 at one end near the rear cover 13. That is, the connection method between the rear cover 13 and the cylindrical body 11 is the same as the connection method between the front cover 12 and the cylindrical body 11. This application will not elaborate further on this.
[0037] In some embodiments, the front cover 12 is connected to the cylindrical body 11 by threaded fasteners. Threaded fasteners include screws, bolts, or threaded rods.
[0038] In some embodiments, the power structure 100 further includes a sealing ring 50 disposed in the annular groove 121 and abutting against the annular protrusion 111 to increase the sealing degree at the connection between the front cover 12 / rear cover 13 and the cylindrical body 11, preventing water from entering the receiving cavity 101. The sealing ring 50 is annular to fit the annular groove 121.
[0039] In some embodiments, the output shaft 31 is connected to the front cover 12 via a bearing 4222, so that the output shaft 31 can rotate smoothly relative to the front cover 12.
[0040] Please see Figure 3 In some embodiments, the front cover 12 is provided with an oil seal cover 112, which is used to seal the area of the front cover 12 through which the output shaft 31 passes, to prevent water from entering the receiving cavity 101.
[0041] In some embodiments, the speed change assembly 30 is a speed reducer.
[0042] In some embodiments, the transmission member 41 and the driven member 42 can be connected by a timing belt or by gears.
[0043] Please see Figure 2 and Figure 4 In some embodiments, both the transmission member 41 and the driven member 42 are gears, and the transmission member 41 meshes with the driven member 42 so that the driven member 42 can rotate together with the transmission member 41.
[0044] The transmission component 41 and the driven component 42 rotate synchronously through gear meshing, resulting in a compact structure that saves installation space.
[0045] In some embodiments, the transmission member 41 and the driven member 42 rotate at the same speed, that is, the number of teeth and the module of the transmission member 41 and the driven member 42 are the same, so that the angle measured by the detection member 43 is the angle between the transmission member 41 and the output shaft 31. In this way, the detection member 43 can directly obtain the angle of the output shaft 31, saving the algorithm system from the step of calculating the angle of the transmission member 41 based on the speed difference between the transmission member 41 and the driven member 42, thereby saving costs.
[0046] Please see Figure 3In some embodiments, the detection element 43 is a Hall angle sensor electrically connected to the circuit board 44. The circuit board 44 is used to compare the current angle of the output shaft 31 with the angle of the output shaft 31 before power-off, and control the operation of the motor assembly 20. The sensing part 421 is a magnet, specifically a radially magnetized magnet, with its two magnetic poles facing each other, and the two magnetic poles of the magnet are in the same direction as the extension of the output shaft 31. The magnet has a magnetic field, and the magnet rotates around the rotation center X together with the follower 42. During the rotation of the magnet, the direction of the magnetic field changes. The Hall angle sensor can determine the rotation angle of the magnet by detecting the change in the direction of the magnetic field caused by the rotating magnet, thereby determining the rotation angle of the follower 42.
[0047] Please combine Figure 3 and Figure 6 In some embodiments, the driven member 42 is rotatably connected to a rotating shaft 422. The extending direction of the rotating shaft 422 is the same as the extending direction of the output shaft 31. The rotating shaft 422 passes through the rotation center X of the driven member 42 and is fixedly connected to the driven member 42 so as to rotate together with the driven member 42. A groove 4221 is provided at one end of the rotating shaft 422 facing the detection member 43. The sensing part 421 is provided in the groove 4221 so as to install the sensing part 421 through the groove 4221.
[0048] In some embodiments, the storage compartment 10 is provided with a mounting plate, which is fixedly connected to the inner wall of the storage compartment 10. The end of the rotating shaft 422 near the detection element 43 passes through the mounting plate, and the output shaft 31 passes through the mounting plate, so that the mounting plate positions the transmission element 41 and the driven element 42.
[0049] In some embodiments, a first mounting plate 15 and a second mounting plate 16 are fixedly provided on the inner wall of the storage compartment 10. The two ends of the rotating shaft 422 are rotatably mounted on the first mounting plate 15 and the second mounting plate 16 respectively to position the driven member 42 and the rotating shaft 422, preventing the driven member 42 and the rotating shaft 422 from shifting during rotation. The end of the rotating shaft 422 near the detection member 43 passes through the mounting plate, enabling the detection member 43 to detect the sensing part 421.
[0050] The second mounting plate 16 positions the rotating shaft 422 so that the sensing part 421 mounted on the rotating shaft 422 corresponds to the detection element 43, making it convenient for the detection element 43 to measure the angle of the sensing part 421.
[0051] The output shaft 31 passes through the first mounting plate 15 and the second mounting plate 16 to prevent the output shaft 31 from shifting during rotation.
[0052] The second mounting plate 16 can also separate the circuit board 44 from the transmission component 41 and the driven wheel to prevent the transmission component 41 and the driven wheel from colliding with other circuit components on the circuit board 44 during rotation, which could damage the circuit board 44 or the circuit components.
[0053] In some embodiments, the rotating shaft 422 is connected to both the first mounting plate 15 and the second mounting plate 16 via bearings 4222, so that the rotating shaft 422 can rotate smoothly. The output shaft 31 is connected to the second mounting plate 16 via bearings 4222, so that the output shaft 31 can rotate smoothly.
[0054] In some embodiments, the cylindrical body 11 is provided with a waterproof connector 113 to prevent water from entering the receiving cavity 101.
[0055] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application fall within the scope of this application's disclosure.
Claims
1. A power structure, characterized in that, include: Storage compartment; The motor assembly is located inside the storage compartment; A transmission assembly is located inside the storage compartment and connected to the motor assembly. The transmission assembly has an output shaft that passes through the storage compartment and is configured to rotate under the drive of the motor assembly. The test component, located inside the storage compartment, includes a transmission component, a driven component, and a detection component. The transmission component is connected to the output shaft, and the driven component is connected to the transmission component. The driven component is configured to rotate around a rotation center when the transmission component rotates with the output shaft. A sensing part is provided at the rotation center of the driven component, and the detection component corresponds to the sensing part to measure the rotation angle of the driven component.
2. The power structure as described in claim 1, characterized in that: The transmission component and the driven component rotate at the same speed.
3. The power structure as described in claim 1 or 2, characterized in that: Both the transmission component and the driven component are gears, and the transmission component meshes with the driven component, so that the driven component can rotate together with the transmission component.
4. The power structure as described in claim 1, characterized in that: The detection element is a Hall angle sensor, and the sensing part is a magnet, enabling the detection element to measure the rotation angle of the magnet.
5. The power structure as described in claim 3, characterized in that: The driven member is rotatably connected to a rotating shaft, which passes through the rotation center of the driven member; The rotating shaft has a groove at one end facing the detection element, and the sensing part is located in the groove.
6. The power structure as described in claim 5, characterized in that: The inner wall of the storage compartment is fixedly provided with a first mounting plate and a second mounting plate. The two ends of the rotating shaft are respectively rotatably mounted on the first mounting plate and the second mounting plate, and the end of the rotating shaft near the detection component passes through the mounting plate. The output shaft passes through the first mounting plate and the second mounting plate to position the transmission component and the driven component.
7. The power structure as described in claim 1, characterized in that: The storage compartment includes a cylindrical body, a front cover, and a rear cover. The cylindrical body has a receiving cavity. The front cover and the rear cover are respectively connected to the two ends of the cylindrical body to close the receiving cavity. The output shaft passes through the front cover.
8. The power structure as described in claim 7, characterized in that: The front cover and / or the rear cover are provided with an annular groove, and the cylindrical body is provided with an annular protrusion. The annular groove can accommodate the annular protrusion so that the cylindrical body positions the front cover and / or the rear cover.
9. The power structure as described in claim 8, characterized in that: The power structure also includes a sealing ring, which is disposed in the annular groove and abuts against the annular protrusion.
10. A controlled device, characterized in that: Includes the power structure as described in any one of claims 1 to 9.