Motor capable of adjusting power output position

Abstract

The invention relates to the field of motors, and discloses a motor capable of adjusting an output power position. The stator assembly is arranged on the inner side of the machine shell; the rotor assembly is provided with a rotating shaft, and the rotating shaft is rotationally connected to the machine shell and penetrates through the stator assembly; the planetary plate is rotationally connected to the rotating shaft, the bottom end of the rotating shaft downwards protrudes out of the planetary plate, and an output gear is rotationally connected to the position, deviating from the axis of the rotating shaft, of the bottom side of the planetary plate; a clutch assembly is arranged among the transmission gear, the rotating shaft and the planetary plate, the output gear is in transmission connection with the transmission gear, and the rotating shaft can be in transmission connection with the transmission gear or the planetary plate through the clutch assembly; the brake assembly is arranged between the planetary plate and the machine shell, and the brake assembly can limit or release rotation of the planetary plate, the position and mode of outputting power outwards can be flexibly adjusted according to use requirements, the applicability to different scenes is improved, the overall structure is compact, and the use requirements of small and micro equipment are better met.

Description

[0001] This application is a divisional application of patent application number CN202511604452.5, filed on November 5, 2025, entitled "A Multifunctional Motor". Technical Field

[0002] This invention relates to the field of electric motors, and more particularly to an electric motor with adjustable output power position. Background Technology

[0003] Electric motors typically use either coils or magnets as the stator and the other as the rotor to output rotational power. Currently, the way and location of motor power output are relatively limited. During use, they are usually combined with gears, drive wheels, and other transmission components to change the form of power output. With technological advancements, the requirements for output power are becoming increasingly demanding. For example, the mop in a floor cleaner or the actuator in a processing machine can usually only output power from a fixed position. If the output position needs to be changed during use, couplings, linkage mechanisms, and other transmission components must be added to the motor's output end, resulting in a bulky overall structure and requiring a large installation space within the machine, making it particularly difficult to apply to micro-machines. Therefore, there is an urgent need for a compact motor that can change its output position during use. Summary of the Invention

[0004] The purpose of this invention is to provide a motor with adjustable output power position to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0005] According to a first aspect of the present invention, an adjustable output power position motor includes: a housing; a stator assembly disposed inside the housing; a rotor assembly having a rotating shaft rotatably connected to the housing and passing through the stator assembly; a planetary disk rotatably connected to the rotating shaft, the bottom end of the rotating shaft protruding downward from the planetary disk, and an output gear rotatably connected to the bottom side of the planetary disk at a position offset from the axis of the rotating shaft; a transmission gear drivingly connected to the output gear, and a clutch assembly disposed between the transmission gear, the rotating shaft, and the planetary disk, the clutch assembly drivingly connecting the rotating shaft to the transmission gear or the planetary disk; and a braking assembly disposed between the planetary disk and the housing, the braking assembly restricting or releasing the rotation of the planetary disk.

[0006] This technical solution has at least the following beneficial effects: During use, the rotating shaft rotates inside the housing and outputs power outward through the output gear. The output gear can output power in various ways. Specifically, the braking assembly is in a state that restricts the rotation of the planetary disk, and the clutch assembly is in a state that connects the rotating shaft to the transmission gear. When the rotating shaft rotates, the power of the rotating shaft is transmitted to the transmission gear, which then directly drives the output gear to rotate, outputting rotational power outward. Alternatively, the braking assembly is in a state that releases the rotation of the planetary disk, and the clutch assembly is in a state that connects the rotating shaft to the planetary disk. When the rotating shaft rotates, the power of the rotating shaft is transmitted to the planetary disk, causing the planetary disk to rotate around the rotating shaft. At this time, the power output deviates from the axis of the rotating shaft. As the output gear rotates with the planetary disk, it revolves around the axis of rotation, thereby changing the output position. This method can be used to adjust the position of the output gear. After adjustment, the output gear can be switched to a state where the axis of rotation drives the output gear to rotate on its own axis, or the output gear can remain in a state of revolving around the axis of rotation. Since the transmission gear and the output gear are connected by transmission, the output gear can also rotate on its own axis while revolving, thus changing the output position and then providing rotational power, or outputting rotational driving force while performing circular motion. In this way, the position and method of outputting power can be flexibly adjusted according to the needs of use, improving the applicability to different scenarios. Moreover, the overall structure is compact, better meeting the needs of small and micro devices.

[0007] According to some embodiments of the present invention, the clutch assembly includes an upper coil, an upper transmission ring, a power ring, a lower coil, and a lower transmission ring. The power ring is connected to the rotating shaft and protrudes downward from the outer side of the end of the planetary disk. The upper transmission ring is connected to the bottom side of the planetary disk and coaxially arranged with the rotating shaft. An upper transmission cavity is formed between the bottom side of the upper transmission ring and the top side of the power ring. Two upper sealing rings are arranged radially spaced within the upper transmission cavity along the power ring. The upper coil is disposed on the upper transmission ring. The lower transmission ring is connected to the top side of the transmission gear and rotatably connected to the outer side of the rotating shaft. A lower transmission cavity is formed between the top side of the lower transmission ring and the bottom side of the power ring. The lower coil is disposed on the lower transmission ring. Two lower sealing rings are arranged radially spaced within the lower transmission cavity along the power ring. The upper transmission cavity and the lower transmission cavity are respectively filled with a first magnetorheological fluid. Two upper sealing rings seal the inner and outer sides of the upper transmission cavity, and similarly, two lower sealing rings seal the inner and outer sides of the upper transmission cavity, allowing the upper and lower transmission cavities to be filled with the first magnetorheological fluid. The clutch assembly connects the rotating shaft to the transmission gear or planetary disk. Specifically, when the clutch assembly needs to connect with the transmission gear, the lower coil is energized. At this time, the first magnetorheological fluid in the lower transmission cavity becomes a high-viscosity, low-flow-rate state under the magnetic field generated by the lower coil, causing the lower transmission ring and the power ring to move synchronously. Meanwhile, the upper coil is de-energized, and the first magnetorheological fluid in the upper transmission cavity is in a low-viscosity, high-flow-rate state, causing the upper transmission ring and the power ring to move synchronously. In the disengaged state, when the shaft rotates, its power is transmitted to the transmission gear through the power ring and the lower transmission ring, realizing the transmission connection between the shaft and the transmission gear. When the clutch assembly needs to be connected to the planetary disk, the upper coil is energized. At this time, the first magnetorheological fluid in the upper transmission cavity becomes a high-viscosity, low-flow-rate state under the magnetic field formed by the upper coil, so that the upper transmission ring and the power ring move synchronously. The lower coil is not energized. At this time, the first magnetorheological fluid in the lower transmission cavity is a low-viscosity, high-flow-rate state, and the lower transmission ring and the power ring are disengaged. When the shaft rotates, its power is transmitted to the planetary disk through the power ring and the upper transmission ring, realizing the transmission connection between the shaft and the planetary disk.

[0008] According to some embodiments of the present invention, an upper mounting groove is formed between the bottom side of the planetary disk and the top side of the upper transmission ring, and the upper coil is disposed in the upper mounting groove. A lower mounting groove is formed between the bottom side of the lower transmission ring and the top side of the transmission gear, and the lower coil is disposed in the lower mounting groove. The space between the bottom side of the planetary disk and the top side of the upper transmission ring for mounting the upper coil, and the space between the bottom side of the lower transmission ring and the top side of the transmission gear for mounting the lower coil, facilitates the installation and positioning of the upper and lower coils and further improves the overall structural compactness.

[0009] According to some embodiments of the present invention, an anti-rotation component is provided between the housing and the bottom side of the transmission gear, the anti-rotation component can restrict or release the rotation of the transmission gear. When the rotating shaft is connected to the transmission gear, the anti-rotation component releases the rotation restriction on the transmission gear. At this time, the anti-rotation component itself can form a connection between the bottom side of the transmission gear and the housing, improving the stability of the transmission gear during rotation. When the rotating shaft is connected to the planetary disk, the anti-rotation component restricts the rotation of the transmission gear, thus making the output gear rotate more efficiently and stably when it rotates around the transmission gear.

[0010] According to some embodiments of the present invention, the anti-rotation assembly includes an upper anti-rotation disk, a lower anti-rotation disk, and an anti-rotation coil. The upper anti-rotation disk is connected to the bottom side of the transmission gear, the lower anti-rotation disk is connected to the inner bottom side of the housing, the anti-rotation coil is disposed between the lower anti-rotation disk and the housing, an anti-rotation cavity is formed between the bottom side of the upper anti-rotation disk and the top side of the lower anti-rotation disk, two anti-rotation sealing rings are arranged radially spaced within the anti-rotation cavity along the lower anti-rotation disk, and the anti-rotation cavity is filled with a second magnetorheological fluid. Two anti-rotation sealing rings can seal the inside and outside of the anti-rotation cavity, allowing the cavity to be filled with a second magnetorheological fluid. When it is necessary to restrict the rotation of the drive gear, the anti-rotation coil is energized. At this time, the second magnetorheological fluid in the anti-rotation cavity becomes a high-viscosity, low-flow-rate state under the magnetic field generated by the anti-rotation coil, restricting the relative rotation between the lower and upper anti-rotation discs, thereby locking the drive gear relative to the housing. When it is necessary to release the rotation restriction of the drive gear, the energization of the anti-rotation coil is stopped. At this time, the second magnetorheological fluid in the anti-rotation cavity is in a low-viscosity, high-flow-rate state, allowing the drive gear to rotate relative to the housing.

[0011] According to some embodiments of the present invention, a central rotating wheel is disposed on the planetary disk between the transmission gear and the output gear, and the central rotating wheel is meshed with the transmission gear and the output gear. The transmission gear transmits power to the output gear through the central rotating wheel. In use, by installing and using central rotating wheels of different specifications, the speed, torque, and other performance characteristics of the output gear can be adjusted.

[0012] According to some embodiments of the present invention, the braking assembly includes a fixed ring, an upper braking ring, a lower braking ring, and a braking coil. The fixed ring is connected to the inner side of the housing, the upper braking ring is connected to the bottom side of the fixed ring, the braking coil is disposed between the fixed ring and the upper braking ring, the lower braking ring is connected to the top side of the planetary disk, a braking cavity is formed between the bottom side of the upper braking ring and the bottom side of the lower braking ring, two braking sealing rings are spaced radially apart in the braking cavity along the lower braking ring, and the braking cavity is filled with a third magnetorheological fluid. Two brake sealing rings can seal the inner and outer sides of the brake chamber, allowing the brake chamber to be filled with a third magnetorheological fluid. When it is necessary to restrict the rotation of the planetary disk, the brake coil is energized. At this time, the third magnetorheological fluid in the brake chamber becomes a high-viscosity, low-flow state under the magnetic field generated by the brake coil, restricting the relative rotation between the lower and upper brake rings, thereby locking the planetary disk relative to the fixed ring fixed inside the housing. When it is necessary to release the rotation restriction of the planetary disk, the energization of the brake coil is stopped. At this time, the third magnetorheological fluid in the brake chamber is in a low-viscosity, high-flow state, allowing the planetary disk to rotate relative to the housing.

[0013] According to some embodiments of the present invention, the housing includes a main housing and an end cover. The main housing has a downward-facing cavity. The end cover is connected to the bottom side of the main housing. The stator assembly is disposed inside the main housing. The top end of the rotating shaft is rotatably connected to the top side of the main housing. The braking assembly is disposed between the planetary disk and the inner side of the main housing. The end cover has a clearance opening for avoiding the output gear. The end cover is used to cover the downward-facing cavity of the main housing. The clearance opening on the end cover, corresponding to the position of the output gear, facilitates the connection of external connectors to the output gear.

[0014] According to some embodiments of the present invention, an upwardly extending connecting cylinder is connected to the top side of the end cap, the top end of the connecting cylinder is connected to the planetary disk, and a rotating sleeve is provided between the connecting cylinder and the main housing. After connecting the connecting cylinder on the top side of the end cap to the planetary disk, since a rotating sleeve is provided between the connecting cylinder and the main housing, when the planetary disk rotates, the end cap can be driven to rotate synchronously through the connecting cylinder. This improves the stability of the planetary disk rotation and keeps the output gear in position with the clearance port, thereby reducing the area required for the clearance port and better utilizing the end cap to protect the internal structure of the main housing.

[0015] According to some embodiments of the present invention, an output connector is connected to the bottom side of the output gear. The output connector protrudes downward from the clearance opening of the end cover, and a sealing sleeve is provided between the output connector and the end cover. The output connector protrudes from the clearance opening of the end cover for connection with external structural components. The sealing sleeve connects the output connector to the end cover at the clearance opening, which improves the stability of the output connector and fills and protects the gap between the output connector and the end cover at the clearance opening. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of the present invention, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall internal structure of the present invention.

[0018] Figure 2 This is the present invention. Figure 1 A magnified view of part A.

[0019] Figure 3 This is the present invention. Figure 1 A magnified view of part B.

[0020] Figure 4 This is the present invention. Figure 1 A magnified schematic diagram of part C.

[0021] Figure 5 This is the present invention. Figure 1 A magnified schematic diagram of part D.

[0022] In the attached diagram: 110-Main housing, 120-End cover, 130-Connecting cylinder, 140-Spinning sleeve, 200-Stator assembly, 300-Rotor assembly, 310-Shaft, 410-Planetary disk, 420-Output gear, 430-Transmission gear, 440-Output connector, 500-Clutch assembly, 510-Upper coil, 520-Upper transmission ring, 530-Power ring, 540-Lower coil, 550-Lower transmission ring, 560-Upper transmission cavity, 570-Upper sealing ring, 580-Lower transmission cavity, 590-Lower sealing ring, 600-Brake assembly, 610-Fixing ring, 620-Upper... Brake ring, 630-lower brake ring, 640-brake coil, 650-brake chamber, 660-brake seal ring, 700-anti-rotation assembly, 710-upper anti-rotation disc, 720-lower anti-rotation disc, 730-anti-rotation coil, 740-anti-rotation chamber, 750-anti-rotation seal ring, 800-middle rotating wheel, 910-slide block, 920-upper locking disc, 930-upper locking coil, 940-connecting sleeve, 950-transmission disc, 960-upper locking seal ring, 970-lower locking disc, 971-lower locking coil, 972-lower locking seal ring, 980-locking gear, 990-arc rack. Detailed Implementation

[0023] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connection relationships mentioned herein do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0024] Reference Figure 1According to a first aspect of the present invention, an adjustable output power position motor includes: a housing; a stator assembly 200 disposed inside the housing; a rotor assembly 300 having a rotating shaft 310 rotatably connected to the housing and passing through the stator assembly 200; and a planetary disk 410 rotatably connected to the rotating shaft 310, the bottom end of the rotating shaft 310 protruding downward from the planetary disk 410, the bottom side of the planetary disk 410 being offset from the axis of the rotating shaft 310. The position is rotatably connected to an output gear 420; a transmission gear 430 is connected to the output gear 420, and a clutch assembly 500 is provided between the transmission gear 430, the rotating shaft 310, and the planetary disk 410. The clutch assembly 500 can drive the rotating shaft 310 to the transmission gear 430 or the planetary disk 410; a braking assembly 600 is provided between the planetary disk 410 and the housing, and the braking assembly 600 can restrict or release the rotation of the planetary disk 410.

[0025] In this multi-functional motor, during operation, the shaft 310 rotates inside the housing and outputs power outward through the output gear 420. The output gear 420 outputs power in several ways. Specifically, the braking assembly 600 is in a state that restricts the rotation of the planetary disk 410, and the clutch assembly 500 is in a state that connects the shaft 310 to the transmission gear 430. When the shaft 310 rotates, its power is transmitted to the transmission gear 430, which then directly drives the output gear 420 to rotate, outputting rotational power outward. Alternatively, the braking assembly 600 may be in a state that releases the rotation of the planetary disk 410, and the clutch assembly 500 may be in a state that connects the shaft 310 to the planetary disk 410. When the shaft 310 rotates, its power is transmitted to the planetary disk 410, causing the planetary disk 410 to rotate around the shaft 310. When the output gear 420, which is offset from the axis of the rotating shaft 310, rotates around the rotating shaft 310 while following the rotation of the planetary disk 410, it changes the output position. The position of the output gear 420 can be adjusted in this way. After that, it can be switched to the state where the rotating shaft 310 drives the output gear 420 to rotate on its own axis, or the output gear 420 can be kept in the state of rotating around the rotating shaft 310. Since the transmission gear 430 is connected to the output gear 420, the output gear 420 can also rotate on its own axis while rotating around the axis, so as to provide rotational power after changing the output position, or output rotational driving force while performing circular motion. In this way, the position and method of outputting power can be flexibly adjusted according to the needs of use, improving the applicability to different scenarios. Moreover, the overall structure is compact, which better meets the needs of small and micro devices.

[0026] Naturally, one of the stator assembly 200 and the rotor assembly 300 is a winding coil and the other is a permanent magnet. For example, the stator assembly 200 is a permanent magnet located inside the housing, while the rotor assembly 300 is a winding coil located outside the rotating shaft 310. When the winding coil is energized, the rotating shaft 310 can be rotated.

[0027] like Figure 2As shown in the figure, as a specific embodiment of the clutch assembly 500, the clutch assembly 500 includes an upper coil 510, an upper transmission ring 520, a power ring 530, a lower coil 540, and a lower transmission ring 550. The power ring 530 is connected to the rotating shaft 310 and protrudes downward from the outer side of the end of the planetary disk 410. The upper transmission ring 520 is connected to the bottom side of the planetary disk 410 and is coaxially arranged with the rotating shaft 310. An upper transmission cavity 560 is formed between the bottom side of the upper transmission ring 520 and the top side of the power ring 530. Two upper sealing rings 570 are arranged radially spaced within the upper transmission cavity 560 along the power ring 530. The upper coil 510 is disposed on the upper transmission ring 520, and the lower transmission ring 550 is connected to the lower transmission ring 540. The transmission gear 430 is connected to the top side and rotatably connected to the outside of the rotating shaft 310. A lower transmission cavity 580 is formed between the top side of the lower transmission ring 550 and the bottom side of the power ring 530. The lower coil 540 is disposed in the lower transmission ring 550. Two lower sealing rings 590 are arranged radially at intervals along the power ring 530 in the lower transmission cavity 580. The upper transmission cavity 560 and the lower transmission cavity 580 are respectively filled with a first magnetorheological fluid. Naturally, in order to energize the upper coil 510 and the lower coil 540, electric slip rings can be respectively provided on the rotating shaft 310 at the positions corresponding to the upper coil 510 and the lower coil 540, and the two electric slip rings are electrically connected to the upper coil 510 and the lower coil 540 respectively.Two upper sealing rings 570 can seal the inner and outer sides of the upper transmission cavity 560. Similarly, two lower sealing rings 590 can seal the inner and outer sides of the upper transmission cavity 560, thereby allowing the upper transmission cavity 560 and the lower transmission cavity 580 to be filled with the first magnetorheological fluid. The clutch assembly 500 can drive the shaft 310 to the transmission gear 430 or the planetary disk 410. Specifically, when the clutch assembly 500 needs to drive the transmission gear 430, the lower coil 540 is energized. At this time, the first magnetorheological fluid in the lower transmission cavity 580 becomes a high-viscosity, low-flow state under the magnetic field formed by the lower coil 540, causing the lower transmission ring 550 and the power ring 530 to move synchronously. Meanwhile, the upper coil 510 is not energized, and the first magnetorheological fluid in the upper transmission cavity 560 is in a low-viscosity, high-flow state, and the upper transmission ring 520 and the power ring 530 are mutually decoupled. In the disengaged state, when the rotating shaft 310 rotates, its power is transmitted to the transmission gear 430 through the power ring 530 and the lower transmission ring 550, realizing the transmission connection between the rotating shaft 310 and the transmission gear 430. When the clutch assembly 500 needs to be connected to the planetary disk 410, the upper coil 510 is energized. At this time, the first magnetorheological fluid in the upper transmission cavity 560 becomes a high-viscosity, low-flow state under the magnetic field formed by the upper coil 510, so that the upper transmission ring 520 and the power ring 530 move synchronously. The lower coil 540 is not energized. At this time, the first magnetorheological fluid in the lower transmission cavity 580 is a low-viscosity, high-flow state. The lower transmission ring 550 and the power ring 530 are disengaged. When the rotating shaft 310 rotates, its power is transmitted to the planetary disk 410 through the power ring 530 and the upper transmission ring 520, realizing the transmission connection between the rotating shaft 310 and the planetary disk 410.

[0028] In practical applications, to improve the power transmission efficiency between the upper transmission ring 520 and the power ring 530, raised structures such as stripes can be provided at the positions of the upper transmission ring 520 and the power ring 530 located in the upper transmission cavity 560, respectively. This enhances the effect of the first magnetorheological fluid in resisting the relative rotation of the upper transmission ring 520 and the power ring 530 under a magnetic field. Similarly, raised structures such as stripes can also be provided at the positions of the lower transmission ring 550 and the power ring 580 located in the lower transmission cavity 580, respectively, thereby improving the power transmission efficiency between the lower transmission ring 550 and the power ring.

[0029] To facilitate the installation and positioning of the upper coil 510 and the lower coil 540, in this embodiment, an upper mounting groove is formed between the bottom side of the planetary disk 410 and the top side of the upper transmission ring 520, and the upper coil 510 is disposed within the upper mounting groove. A lower mounting groove is formed between the bottom side of the lower transmission ring 550 and the top side of the transmission gear 430, and the lower coil 540 is disposed within the lower mounting groove. The space between the bottom side of the planetary disk 410 and the top side of the upper transmission ring 520 for installing the upper coil 510, and the space between the bottom side of the lower transmission ring 550 and the top side of the transmission gear 430 for installing the lower coil 540, improves the ease of installation and positioning of the upper coil 510 and the lower coil 540, and further enhances the overall structural compactness.

[0030] To improve the stability of the transmission gear 430 during operation, in this embodiment, an anti-rotation component 700 is provided between the housing and the bottom side of the transmission gear 430. The anti-rotation component 700 can restrict or release the rotation of the transmission gear 430. When the rotating shaft 310 is connected to the transmission gear 430, the anti-rotation component 700 releases the rotation restriction on the transmission gear 430. At this time, the anti-rotation component 700 itself can form a connection between the bottom side of the transmission gear 430 and the housing, improving the stability of the transmission gear 430 during rotation. When the rotating shaft 310 is connected to the planetary disk 410, the anti-rotation component 700 restricts the rotation of the transmission gear 430, thus making the output gear 420 rotate more efficiently and stably when it rotates around the transmission gear 430.

[0031] like Figure 3As shown in the figure, in a specific embodiment of the anti-rotation component 700, the anti-rotation component 700 includes an upper anti-rotation disk 710, a lower anti-rotation disk 720, and an anti-rotation coil 730. The upper anti-rotation disk 710 is connected to the bottom side of the transmission gear 430, and the lower anti-rotation disk 720 is connected to the inner bottom side of the housing. The anti-rotation coil 730 is disposed between the lower anti-rotation disk 720 and the housing. An anti-rotation cavity 740 is formed between the bottom side of the upper anti-rotation disk 710 and the top side of the lower anti-rotation disk 720. Two anti-rotation sealing rings 750 are arranged radially at intervals along the lower anti-rotation disk 720 in the anti-rotation cavity 740. The anti-rotation cavity 740 is filled with a second magnetorheological fluid. Naturally, an electric slip ring electrically connected to the anti-rotation coil 730 can be provided on the housing to energize the anti-rotation coil 730. Two anti-rotation sealing rings 750 can seal the inner and outer sides of the anti-rotation cavity 740, thereby filling the anti-rotation cavity 740 with a second magnetorheological fluid. When it is necessary to restrict the rotation of the transmission gear 430, the anti-rotation coil 730 is energized. At this time, the second magnetorheological fluid in the anti-rotation cavity 740 becomes a high-viscosity, low-flow state under the magnetic field formed by the anti-rotation coil 730, restricting the relative rotation between the lower anti-rotation plate 720 and the upper anti-rotation plate 710, thereby locking the transmission gear 430 relative to the housing. When it is necessary to release the rotation restriction of the transmission gear 430, the energization of the anti-rotation coil 730 is stopped. At this time, the second magnetorheological fluid in the anti-rotation cavity 740 is in a low-viscosity, high-flow state, and the transmission gear 430 can rotate relative to the housing.

[0032] In the above embodiments, the output gear 420 can directly mesh with the transmission gear 430. However, in this embodiment, the planetary disk 410 is provided with an intermediate rotating wheel 800 located between the transmission gear 430 and the output gear 420. The intermediate rotating wheel 800 is meshed with both the transmission gear 430 and the output gear 420. The transmission gear 430 transmits power to the output gear 420 through the intermediate rotating wheel 800. In use, by installing and using intermediate rotating wheels 800 of different specifications, the speed, torque, and other performance characteristics of the output gear 420 can be adjusted.

[0033] like Figure 4As shown in the figure, in a specific embodiment of the braking assembly 600, the braking assembly 600 includes a fixed ring 610, an upper braking ring 620, a lower braking ring 630, and a braking coil 640. The fixed ring 610 is connected to the inner side of the housing, the upper braking ring 620 is connected to the bottom side of the fixed ring 610, the braking coil 640 is disposed between the fixed ring 610 and the upper braking ring 620, the lower braking ring 630 is connected to the top side of the planetary disk 410, a braking cavity 650 is formed between the bottom sides of the upper braking ring 620 and the bottom sides of the lower braking ring 630, two braking sealing rings 660 are spaced radially apart in the braking cavity 650 along the lower braking ring 630, and the braking cavity 650 is filled with a third magnetorheological fluid. Naturally, an electric slip ring electrically connected to the braking coil 640 is provided on the inner side of the housing to supply power to the braking coil 640. Two brake sealing rings 660 can seal the inner and outer sides of the brake cavity 650, thereby filling the brake cavity 650 with a third magnetorheological fluid. When it is necessary to restrict the rotation of the planetary disk 410, the brake coil 640 is energized. At this time, the third magnetorheological fluid in the brake cavity 650 becomes a high-viscosity, low-flow state under the magnetic field formed by the brake coil 640, restricting the relative rotation between the lower brake ring 630 and the upper brake ring 620, thereby locking the planetary disk 410 relative to the fixing ring 610 fixed inside the housing. When it is necessary to release the rotation restriction of the planetary disk 410, the energization of the brake coil 640 is stopped. At this time, the third magnetorheological fluid in the brake cavity 650 is in a low-viscosity, high-flow state, and the planetary disk 410 can rotate relative to the housing.

[0034] In the above embodiment, the output gear 420 can only rotate around the shaft 310 to change its position when adjusting its position. To further improve the flexibility of adjusting the output gear 420, in this embodiment, such as Figure 5As shown, an arc-shaped rack 990 is provided on the bottom side of the planetary disk 410. The arc-shaped rack 990 extends arc-shapedly from the outer side of the planetary disk 410 to the middle of the planetary disk 410 with the axis of the central rotating wheel 800 as the center. A slide block 910 is slidably connected to the bottom side of the planetary disk 410. The slide block 910 can slide along the extension direction of the arc-shaped rack 990. An upper locking disk 920 is connected to the bottom side of the slide block 910. An upper locking coil 930 is provided between the slide block 910 and the upper locking disk 920. A connecting sleeve 940 is sleeved on the outer side of the slide block 910. A transmission disk 950 is provided inside the connecting sleeve 940. The transmission disk 950 is rotatably connected to the bottom side of the upper locking disk 920. An upper locking cavity is formed between the upper locking disk 920 and the transmission disk 950. Two upper locking cavities are arranged radially at intervals along the upper locking disk 920. An upper locking sealing ring 960 is provided. The bottom side of the transmission disk 950 is rotatably connected to the lower locking disk 970. A lower locking coil 971 is provided on the bottom side of the lower locking disk 970. The lower locking disk 970 and the transmission disk 950 form a lower locking cavity. Two lower locking sealing rings 972 are arranged at radial intervals along the lower locking disk 970 in the lower locking cavity. Both the upper locking cavity and the lower locking cavity are filled with a fourth magnetorheological fluid. A locking gear 980 is provided on the outside of the connecting sleeve 940. The locking gear 980 meshes with the arc-shaped rack 990. The output gear 420 is connected to the bottom side of the lower locking disk 970. Naturally, electric slip rings can be provided on the slide 910 and the lower locking disk 970 respectively. The two electric slip rings are electrically connected to the upper locking coil 930 and the lower locking coil 971 respectively, and supply power to the upper locking coil 930 and the lower locking coil 971.When the position of the output gear 420 relative to the planetary disk 410 does not need to be changed, the upper locking coil 930 is energized. Under the magnetic field of the upper locking coil 930, the fourth magnetorheological fluid in the upper locking cavity is in a high-viscosity, low-flow state. Meanwhile, the lower locking coil 971 does not need to be energized, and the fourth magnetorheological fluid in the lower locking cavity is in a low-viscosity, high-flow state. At this time, the lower locking disk 970 can rotate relative to the transmission disk 950, and the positions of the transmission disk 950 and the upper locking disk 920 are locked. The locking gear 980 cannot rotate relative to the slide 910. By utilizing the meshing of the locking gear 980 and the arc-shaped rack 990, the position of the slide 910 can be locked, thereby locking the position of the output gear 420 relative to the planetary disk 410. When the position of the output gear 420 relative to the planetary disk 410 needs to be changed, the upper locking coil 930 does not need to be energized, and the fourth magnetorheological fluid in the upper locking cavity... The fourth magnetorheological fluid is in a low-viscosity, high-flow-rate state. The upper locking disk 920 can rotate relative to the transmission disk 950. When the lower locking coil 971 is energized, under the magnetic field of the lower locking coil 971, the fourth magnetorheological fluid in the lower locking cavity is in a high-viscosity, low-flow-rate state. The transmission disk 950 and the lower locking disk 970 can rotate synchronously. When the power of the central rotating wheel 800 is transmitted to the output gear 420, the power can be transmitted to the locking gear 980 through the lower locking disk 970, the transmission disk 950, and the connecting sleeve 940. By using the meshing of the locking gear 980 and the locking rack, the slide 910 can be driven to move along the arc rack 990, so that the output gear 420 rotates and shifts around the central rotating wheel 800. In this way, the position of the output gear 420 can be adjusted between the outer side and the middle of the planetary disk 410, further improving the flexibility of adjusting the position of the output gear 420.

[0035] As a specific embodiment of the housing, the housing includes a main housing 110 and an end cover 120. The main housing 110 has a cavity with an opening facing downwards. The end cover 120 is connected to the bottom side of the main housing 110. The stator assembly 200 is disposed inside the main housing 110. The top end of the rotating shaft 310 is rotatably connected to the inner top side of the main housing 110. The braking assembly 600 is disposed between the planetary disk 410 and the inner side of the main housing 110. The end cover 120 has a clearance opening for avoiding the output gear 420. The end cover 120 is used to cover the cavity with an opening facing downwards in the main housing 110. At this time, the clearance opening on the end cover 120 at the position corresponding to the output gear 420 can facilitate the connection of external connectors to the output gear 420.

[0036] When the end cap 120 is fixedly connected to the main housing 110, since the output gear 420 can rotate around the rotating shaft 310, the clearance needs to open a large space around the rotating shaft 310 and cannot form a complete ring, which affects the output power output of the output gear 420. Therefore, in this embodiment, the top side of the end cap 120 is connected to an upwardly extending connecting cylinder 130, the top end of the connecting cylinder 130 is connected to the planetary disk 410, and a rotating sleeve 140 is provided between the connecting cylinder 130 and the main housing 110. After connecting the connecting sleeve 130 on the top side of the end cover 120 to the planetary disk 410, since a rotating sleeve 140 is provided between the connecting sleeve 130 and the main housing 110, when the planetary disk 410 rotates, the connecting sleeve 130 can drive the end cover 120 to rotate synchronously. This improves the stability of the planetary disk 410's rotation and keeps the output gear 420 in position with the clearance port, thereby reducing the area required for the clearance port and better utilizing the end cover 120 to protect the internal structure of the main housing 110. Naturally, when the position of the output gear 420 can move between the outer side and the middle of the planetary disk 410, the shape of the clearance hole is set according to the movement path of the output gear 420.

[0037] Furthermore, an output connector 440 is connected to the bottom side of the output gear 420. The output connector 440 protrudes downward from the clearance opening from the end cover 120, and a sealing sleeve is provided between the output connector 440 and the end cover 120. The output connector 440 extends from the clearance opening into the end cover 120 for connection with external structural components. The sealing sleeve connects the output connector 440 to the end cover 120 at the clearance opening, which improves the stability of the output connector 440 and fills and protects the gap between the output connector 440 and the end cover 120 at the clearance opening.

[0038] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A motor with adjustable output power position, characterized in that: include: chassis; Stator assembly (200) is disposed inside the housing; The rotor assembly (300) has a rotating shaft (310) rotatably connected to the housing and passing through the stator assembly (200). A planetary disk (410) is rotatably connected to the rotating shaft (310). The bottom end of the rotating shaft (310) protrudes downward from the planetary disk (410). An output gear (420) is rotatably connected to the bottom side of the planetary disk (410) at a position offset from the axis of the rotating shaft (310). A transmission gear (430) is connected to the output gear (420). A clutch assembly (500) is provided between the transmission gear (430), the rotating shaft (310), and the planetary disk (410). The clutch assembly (500) can connect the rotating shaft (310) to the transmission gear (430) or the planetary disk (410). An intermediate rotating wheel (800) is provided on the planetary disk (410) at a position between the transmission gear (430) and the output gear (420). The intermediate rotating wheel (800) is meshed with the transmission gear (430) and the output gear (420). A braking assembly (600) is disposed between the planetary disk (410) and the housing, the braking assembly (600) restricting or releasing the rotation of the planetary disk (410), wherein: An arc-shaped rack (990) is provided on the bottom side of the planetary disk (410). The arc-shaped rack (990) extends in an arc shape from the outer side of the planetary disk (410) to the middle of the planetary disk (410) with the axis of the central rotating wheel (800) as the center. A slide block (910) is slidably connected to the bottom side of the planetary disk (410). The slide block (910) can slide along the extension direction of the arc-shaped rack (990). An upper locking disc (920) is connected to the bottom side of the slide block (910). An upper locking coil (930) is provided between the slide block (910) and the upper locking disc (920). A connecting sleeve (940) is sleeved on the outer side of the slide block (910). A transmission disc (950) is provided inside the connecting sleeve (940). The transmission disc (950) is rotatably connected to the bottom side of the upper locking disc (920). An upper locking cavity is formed between the upper locking disk (920) and the transmission disk (950). Two upper locking seal rings (960) are arranged at radial intervals along the upper locking disk (920). The bottom side of the transmission disk (950) is rotatably connected to the lower locking disk (970). A lower locking coil (971) is arranged on the bottom side of the lower locking disk (970). The lower locking disk (970) and the transmission disk (950) form a lower locking cavity. Two lower locking seal rings (972) are arranged at radial intervals along the lower locking disk (970). The upper locking cavity and the lower locking cavity are both filled with a fourth magnetorheological fluid. A locking gear (980) is arranged on the outside of the connecting sleeve (940). The locking gear (980) meshes with the arc-shaped rack (990). The output gear (420) is connected to the bottom side of the lower locking disk (970).

2. The motor with adjustable output power position according to claim 1, characterized in that: The clutch assembly (500) includes an upper coil (510), an upper drive ring (520), a power ring (530), a lower coil (540), and a lower drive ring (550). The power ring (530) is connected to the rotating shaft (310) and protrudes downward from the outer end of the planetary disk (410). The upper drive ring (520) is connected to the bottom side of the planetary disk (410) and is coaxially arranged with the rotating shaft (310). An upper drive cavity (560) is formed between the bottom side of the upper drive ring (520) and the top side of the power ring (530). Two upper seals are arranged radially spaced within the upper drive cavity (560) along the power ring (530). The upper coil (510) is disposed on the upper transmission ring (520), the lower transmission ring (550) is connected to the top side of the transmission gear (430) and rotatably connected to the outside of the rotating shaft (310), a lower transmission cavity (580) is formed between the top side of the lower transmission ring (550) and the bottom side of the power ring (530), the lower coil (540) is disposed on the lower transmission ring (550), and two lower sealing rings (590) are arranged radially at intervals along the power ring (530) in the lower transmission cavity (580), and the upper transmission cavity (560) and the lower transmission cavity (580) are respectively filled with a first magnetorheological fluid.

3. The motor with adjustable output power position according to claim 2, characterized in that: An upper mounting groove is formed between the bottom side of the planetary disk (410) and the top side of the upper transmission ring (520), and the upper coil (510) is disposed in the upper mounting groove. A lower mounting groove is formed between the bottom side of the lower transmission ring (550) and the top side of the transmission gear (430), and the lower coil (540) is disposed in the lower mounting groove.

4. The motor with adjustable output power position according to claim 1, characterized in that: An anti-rotation component (700) is provided between the housing and the bottom side of the transmission gear (430), which can restrict or release the rotation of the transmission gear (430).

5. The motor with adjustable output power position according to claim 4, characterized in that: The anti-rotation assembly (700) includes an upper anti-rotation disk (710), a lower anti-rotation disk (720), and an anti-rotation coil (730). The upper anti-rotation disk (710) is connected to the bottom side of the transmission gear (430), and the lower anti-rotation disk (720) is connected to the inner bottom side of the housing. The anti-rotation coil (730) is disposed between the lower anti-rotation disk (720) and the housing. An anti-rotation cavity (740) is formed between the bottom side of the upper anti-rotation disk (710) and the top side of the lower anti-rotation disk (720). Two anti-rotation sealing rings (750) are arranged radially at intervals along the lower anti-rotation disk (720) in the anti-rotation cavity (740). The anti-rotation cavity (740) is filled with a second magnetorheological fluid.

6. The motor with adjustable output power position according to claim 1, characterized in that: The braking assembly (600) includes a fixed ring (610), an upper braking ring (620), a lower braking ring (630), and a braking coil (640). The fixed ring (610) is connected to the inner side of the housing. The upper braking ring (620) is connected to the bottom side of the fixed ring (610). The braking coil (640) is disposed between the fixed ring (610) and the upper braking ring (620). The lower braking ring (630) is connected to the top side of the planetary disk (410). A braking cavity (650) is formed between the bottom side of the upper braking ring (620) and the bottom side of the lower braking ring (630). Two braking sealing rings (660) are spaced radially from the lower braking ring (630) inside the braking cavity (650). The braking cavity (650) is filled with a third magnetorheological fluid.

7. The motor with adjustable output power position according to claim 1, characterized in that: The housing includes a main housing (110) and an end cover (120). The main housing (110) has a cavity with an opening facing downward. The end cover (120) is connected to the bottom side of the main housing (110). The stator assembly (200) is disposed inside the main housing (110). The top end of the rotating shaft (310) is rotatably connected to the top side inside the main housing (110). The braking assembly (600) is disposed between the planetary disk (410) and the inside of the main housing (110). The end cover (120) is provided with a clearance opening for avoiding the output gear (420).

8. The motor with adjustable output power position according to claim 7, characterized in that: The top side of the end cap (120) is connected to an upwardly extending connecting cylinder (130), the top end of the connecting cylinder (130) is connected to the planetary disk (410), and a rotating sleeve (140) is provided between the connecting cylinder (130) and the main housing (110).

9. The motor with adjustable output power position according to claim 8, characterized in that: The bottom side of the output gear (420) is connected to an output connector (440), the output connector (440) protrudes downward from the clearance opening from the end cover (120), and a sealing sleeve is provided between the output connector (440) and the end cover (120).

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