Modular reconfigurable multi-stage reduction motor structure

Abstract

The application discloses a modular reconfigurable multi-stage speed reduction motor structure, which comprises a motor, an assembling mechanism is installed at the bottom of the motor, a plurality of planetary speed reduction modules are installed on the upper side of the assembling mechanism, a driving shaft is fixedly connected to the output end of the motor and the planetary speed reduction modules, two clamping keys are fixedly connected to the driving shaft in a symmetrical manner, and an insertion slot corresponding to the driving shaft is formed in the input end of the planetary speed reduction module. The standardized planetary speed reduction module is provided, planetary speed reduction modules with different speed reduction ratios can be combined and stacked at will, for example, planetary speed reduction modules with speed reduction ratios of 3:1, 5:1 and 10:1 can be combined to obtain speed reduction ratios of 3, 5, 10, 15, 30, 50 and 150, different household office equipment requirements can be adapted, only one motor and several standard planetary speed reduction modules need to be produced, all terminal products can be covered, a motor does not need to be customized for each product, and the mold opening cost and inventory pressure are greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of geared motor technology, specifically to a modular, reconfigurable multi-stage geared motor structure. Background Technology

[0002] Geared motors are power devices that add a gear reducer to a regular motor to reduce speed and increase output torque. They are widely used in home and office equipment, such as smart curtains, robot vacuum cleaners, electric height-adjustable desks, printers, paper shredders, and projectors.

[0003] Currently, there are many types of home and office equipment, and different devices have significantly different requirements for the reduction ratio and output torque of the geared motor: for example, smart curtains require a reduction ratio of about 50:1 to achieve smooth low-speed opening and closing, paper shredders require a high reduction ratio of about 150:1 to provide high torque shredding power, while the paper feeding mechanism of a printer only needs a reduction ratio of about 10:1 to meet the requirements.

[0004] For example, the patent for a conveniently combinable geared motor with application number CN217335323U only realizes the separate connection between the motor and the single-stage gearbox. It cannot support the free series reconfiguration of multi-stage reduction modules and cannot meet the application requirements of high reduction ratio and high torque. Moreover, the modules are fastened with screws, and disassembly requires the use of professional tools to knock them apart. The operation is cumbersome and can easily cause deformation of the gear shaft and damage to the housing, resulting in extremely low maintenance and replacement efficiency.

[0005] The patent application CN119420094A describes a modular micro geared motor with selectable output torque during production. This patent designs the transmission unit as an independent module that can be quickly connected to the drive unit. However, the transmission unit has a fixed gear set structure inside, and the reduction ratio cannot be adjusted. Manufacturers still need to produce dozens of transmission units with different reduction ratios to cover the needs of all product categories. This does not fundamentally solve the problems of high mold opening costs and complicated inventory models.

[0006] The small-space modular motor reduction assembly patent with application number CN119393503A uses a non-standardized interface design for its reduction module. Different models of modules cannot be interchanged, and there is no axial reinforcement or radial limiting structure between modules. After multi-stage series connection, the transmission stability is poor, and vibration and noise are easily generated during operation. It is only suitable for simple scenarios with low load or low speed.

[0007] Most of the geared motors in the aforementioned patents are integrated custom structures. For different reduction ratio requirements, manufacturers need to develop different motor molds and configure different gear sets, which leads to the following problems: different specifications of geared motors need to be produced by independent molds, and manufacturers need to keep a large inventory of different models of motors to adapt to different end products, which greatly increases production costs and capital occupation; some existing modular geared motors can only realize the separate connection of the motor and the gearbox, and cannot realize the free reconfiguration of multi-stage reduction modules, and the disassembly and assembly efficiency is low and the structural stability is poor. Summary of the Invention

[0008] The purpose of this invention is to provide a modular, reconfigurable multi-stage geared motor structure to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] This invention provides a modular, reconfigurable, multi-stage geared motor structure, including a motor, an assembly mechanism mounted on the bottom of the motor, and multiple planetary gear reduction modules mounted on the upper side of the assembly mechanism. Both the output ends of the motor and the planetary gear reduction modules are fixedly connected to a drive shaft. Two locking keys are symmetrically fixedly connected to the drive shaft. The input end of each planetary gear reduction module has a slot corresponding to the drive shaft, and the drive shaft is movably inserted into the slot. Two keyways are symmetrically formed on the slot wall, and the two locking keys are located within the two keyways respectively. A reinforcing component connects adjacent planetary gear reduction modules, and a limit mechanism connects the vertical sidewall of each planetary gear reduction module to the assembly mechanism.

[0011] Furthermore, the assembly mechanism includes a base, with first support seats fixedly connected to both the left and right ends of the base. An arc-shaped support plate is fixedly connected to the right side of the first support seat on the right side, and a second support seat is fixedly connected to the right end of the arc-shaped support plate. The second support seat is fixedly connected to the motor by multiple bolts. Two internally threaded cylinders are symmetrically rotatably connected to the first support seat on the left side, and an adjusting screw is threaded into each of the two internally threaded cylinders. A square sleeve is fixedly connected to the first support seat on the right side, and a square limiting rod is fixedly inserted into the square sleeve. The left end of the square limiting rod is fixedly connected to the right end of the adjusting screw, and a connecting plate is fixedly connected to the left end of the adjusting screw. Two insert rods are fixedly connected to the right side of the connecting plate. Multiple fixed cylinders are fixedly connected to the left side of the planetary reduction module on the left side, and the insert rods are movably inserted into the fixed cylinders. An adjustment assembly is connected between the internally threaded cylinder and the first support seat.

[0012] Furthermore, the adjustment assembly includes two driven gears fixedly sleeved on the outside of the internal threaded cylinder. A rotating shaft is rotatably connected to the left side of the first support seat located on the left side. A driving gear that meshes with the two driven gears is fixedly sleeved on the rotating shaft. Both the driving gear and the first support seat have threaded holes, and a locking screw is threaded into the threaded hole.

[0013] Furthermore, the reinforcement component includes two semi-circular studs that are respectively fixedly connected to the upper side of the two planetary reduction modules. The two semi-circular studs form a complete cylindrical structure. The two semi-circular studs are threaded with the same locking nut. The outer wall of the locking nut is symmetrically fixedly connected with two push rods.

[0014] Furthermore, the limiting mechanism includes a fixed block fixedly connected to the vertical side wall of the planetary deceleration module, a guide block fixedly connected to the upper side of the base, a guide rod fixedly connected to the side of the fixed block near the guide block, a guide hole opened in the vertical side wall of the guide block, and the guide rod passing through the guide hole through the guide block.

[0015] Furthermore, the lower sides of the first support base and the second support base are fixedly connected to two mounting bases, and the bottom of the mounting bases is provided with pin holes.

[0016] Furthermore, a turntable is fixedly connected to the left end of the locking screw, and multiple anti-slip grooves are evenly distributed on the outer edge of the turntable.

[0017] Furthermore, a first sealing ring is provided between the motor and the planetary reduction module, and a second sealing ring is provided between two adjacent planetary reduction modules.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention utilizes standardized planetary reduction modules. Planetary reduction modules with different reduction ratios can be arbitrarily combined and stacked. For example, planetary reduction modules with ratios of 3:1, 5:1, and 10:1 can be combined to produce various reduction ratios such as 3, 5, 10, 15, 30, 50, and 150, adapting to the needs of different home and office equipment. Only one type of motor and several standard planetary reduction modules need to be produced to cover all end products, eliminating the need to customize motors for each product and significantly reducing mold opening costs and inventory pressure.

[0020] 2. The present invention, through its assembly mechanism, enables the docking and disassembly of planetary reduction modules without the need for specialized tools. It is simple and convenient to operate, and allows for the quick replacement of planetary reduction modules with different reduction ratios. Different specifications of geared motors can be quickly assembled according to requirements, significantly improving production efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure from another direction of the present invention;

[0023] Figure 3 This is the front view of the present invention;

[0024] Figure 4 for Figure 1 Schematic diagram of the assembly mechanism;

[0025] Figure 5 for Figure 1 A schematic diagram of the assembly mechanism from another direction;

[0026] Figure 6 for Figure 1 A schematic diagram of the structure of the electric motor;

[0027] Figure 7 for Figure 1 Schematic diagram of the planetary deceleration module;

[0028] Figure 8 for Figure 1 A schematic diagram of the planetary deceleration module from another direction.

[0029] In the diagram: 1. Motor; 2. Assembly mechanism; 3. Planetary reduction module; 4. Drive shaft; 5. Locking key; 6. Slot; 7. Keyway; 8. Reinforcing component; 9. Limiting mechanism; 10. Base; 11. First support seat; 12. Arc-shaped support plate; 13. Second support seat; 14. Internal threaded cylinder; 15. Adjusting screw; 16. Square sleeve; 17. Square limiting rod; 18. Connecting plate; 19. Insert rod; 20. Fixing cylinder ; 21. Adjusting component; 22. Driven gear; 23. Rotating shaft; 24. Driving gear; 25. Threaded hole; 26. Locking screw; 27. Semi-circular stud; 28. Locking nut; 29. ​​Push rod; 30. Fixing block; 31. Guide block; 32. Guide rod; 33. Guide hole; 34. Mounting base; 35. Pin hole; 36. Turntable; 37. Anti-slip groove; 38. First sealing ring; 39. Second sealing ring. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-8This invention provides a modular, reconfigurable, multi-stage geared motor structure, including a motor 1. An assembly mechanism 2 is mounted on the bottom of the motor 1. Multiple planetary reduction modules 3 are mounted on the upper side of the assembly mechanism 2. Each planetary reduction module 3 is a planetary reducer. The output ends of the motor 1 and the planetary reduction modules 3 are fixedly connected to drive shafts 4. Two locking keys 5 are symmetrically fixedly connected to the drive shafts 4. The input end of each planetary reduction module 3 has a slot 6 corresponding to the drive shaft 4. The drive shaft 4 is movably inserted into the slot 6. Two keyways 7 are symmetrically opened on the slot wall of the slot 6. The two locking keys 5 are located in the two keyways 7 respectively. A reinforcing component 8 is connected between two adjacent planetary reduction modules 3. A limiting mechanism 9 is connected between the vertical sidewall of the planetary reduction module 3 and the assembly mechanism 2.

[0032] In the above embodiment, the output end of the motor 1 drives the drive shaft 4 to rotate. Through the cooperation of the key 5 and the keyway 7, the input end of the planetary reduction module 3 can be driven to run, thereby enabling multiple planetary reduction modules 3 to run for speed reduction transmission. Through the standardized planetary reduction modules 3, planetary reduction modules 3 with different reduction ratios can be arbitrarily combined and stacked. For example, planetary reduction modules 3 with ratios of 3:1, 5:1, and 10:1 can be combined to produce various reduction ratios such as 3, 5, 10, 15, 30, 50, and 150, which can adapt to the needs of different home and office equipment. Only one type of motor 1 and several standard planetary reduction modules 3 need to be produced to cover all end products. There is no need to customize the motor 1 for each product, which greatly reduces the mold opening cost and inventory pressure.

[0033] The assembly mechanism 2 includes a base 10, with first support seats 11 fixedly connected to both the left and right ends of the base 10. An arc-shaped support plate 12 is fixedly connected to the right side of the first support seat 11 on the right side, and a second support seat 13 is fixedly connected to the right end of the arc-shaped support plate 12. The second support seat 13 is fixedly connected to the motor 1 by multiple bolts. Two internally threaded cylinders 14 are symmetrically rotatably connected to the first support seat 11 on the left side, and adjusting screws 15 are threaded into both internally threaded cylinders 14. The first support seat 11 on the right side... A square sleeve 16 is fixedly connected to the 11. A square limiting rod 17 is fixedly inserted into the square sleeve 16. The left end of the square limiting rod 17 is fixedly connected to the right end of the adjusting screw 15. A connecting plate 18 is fixedly connected to the left end of the adjusting screw 15. Two insert rods 19 are fixedly connected to the right side of the connecting plate 18. Multiple fixed cylinders 20 are fixedly connected to the left side of the planetary reduction module 3 located on the left side. The insert rods 19 are movably inserted into the fixed cylinders 20. An adjusting assembly 21 is connected between the internal threaded cylinder 14 and the first support seat 11.

[0034] In this embodiment, when replacing the planetary reduction module 3, the locking screw 26 is turned to disengage it from the first support seat 11, releasing the locking screw 26 from its limiting and fixing effect on the driving gear 24. This pushes the locking screw 26, causing the driving gear 24 to rotate. The driving gear 24 then drives the two driven gears 22 to rotate, which in turn drives the two internal threaded cylinders 14 to rotate. Through the threaded engagement between the internal threaded cylinders 14 and the adjusting screw 15, and the mutual cooperation between the square sleeve 16 and the square limiting rod 17 to prevent rotation of the adjusting screw 15, the adjusting screw 15 can move to the left. The adjusting screw 15 then drives the connecting plate 18 and the insert rod 1... Move 9 to the left to disengage the insertion rod 19 from the fixed cylinder 20, thereby releasing the locking and fixing of the planetary reduction module 3. Push the planetary reduction module 3 to the left until it contacts the limit mechanism 9. Pull the planetary reduction module 3 upward to complete the disassembly. Place the planetary reduction module 3 to be replaced on the base 10 and rotate the drive gear 24 in the opposite direction to quickly lock and fix the planetary reduction module 3. The operation is simple and convenient, and it can realize the docking and disassembly of planetary reduction modules 3 without the need for professional tools. It is simple and convenient to operate and can quickly replace planetary reduction modules 3 with different reduction ratios. Different specifications of geared motors can be quickly assembled according to needs, and production efficiency is greatly improved.

[0035] The adjustment assembly 21 includes two driven gears 22 fixedly sleeved on the outside of the internal threaded cylinder 14. A rotating shaft 23 is rotatably connected to the left side of the first support seat 11 located on the left side. A driving gear 24 that meshes with the two driven gears 22 is fixedly sleeved on the rotating shaft 23. Both the driving gear 24 and the first support seat 11 are provided with threaded holes 25. A locking screw 26 is inserted into the threaded hole 25.

[0036] In this embodiment, when replacing the planetary reduction module 3, the locking screw 26 is turned to disengage the locking screw 26 from the first support seat 11, thereby releasing the locking screw 26 from limiting and fixing the drive gear 24. The locking screw 26 is then pushed, causing the drive gear 24 to rotate. The drive gear 24 then drives the two driven gears 22 to rotate, and the two driven gears 22 drive the two internal threaded cylinders 14 to rotate.

[0037] The reinforcement component 8 includes two semi-circular studs 27 that are respectively fixedly connected to the upper side of the two planetary reduction modules 3. The two semi-circular studs 27 form a complete cylindrical structure. The two semi-circular studs 27 are threaded with the same locking nut 28. The outer wall of the locking nut 28 is symmetrically fixedly connected with two push rods 29.

[0038] In this embodiment, during installation, the locking nut 28 is screwed onto the outside of the two semi-circular studs 27, thereby securing the two adjacent planetary reduction modules 3 together, effectively improving the structural stability of the geared motor. It is detachable; simply unscrew the locking nut 28, making the operation simple and convenient.

[0039] The limiting mechanism 9 includes a fixing block 30 fixedly connected to the vertical side wall of the planetary deceleration module 3, a guide block 31 fixedly connected to the upper side of the base 10, a guide rod 32 fixedly connected to the side of the fixing block 30 near the guide block 31, a guide hole 33 is provided on the vertical side wall of the guide block 31, and the guide rod 32 passes through the guide block 31 through the guide hole 33.

[0040] In the above embodiment, the guide rod 32 and the guide block 31 cooperate with each other to limit and fix the planetary deceleration module 3, thereby improving the stability of the planetary deceleration module 3 during operation.

[0041] The first support base 11 and the lower side of the second support base 13 are fixedly connected to two mounting bases 34, and the bottom of the mounting base 34 is provided with a pin hole 35.

[0042] In this embodiment, the mounting base 34 and the pin hole 35 cooperate with each other to facilitate the fixed installation of the first support base 11 and the second support base 13, thereby improving the convenience of the entire geared motor installation.

[0043] The left end of the locking screw 26 is fixedly connected to a turntable 36, and the outer edge of the turntable 36 is evenly provided with multiple anti-slip grooves 37.

[0044] In the above embodiment, rotating the turntable 36 can drive the locking screw 26 to rotate, thereby improving the convenience of rotating the locking screw 26.

[0045] A first sealing ring 38 is provided between the motor 1 and the planetary reduction module 3, and a second sealing ring 39 is provided between two adjacent planetary reduction modules 3.

[0046] In this embodiment, the first sealing ring 38 and the second sealing ring 39 can improve the overall sealing performance of the geared motor, effectively absorb the vibration generated by transmission, reduce operating noise, and prevent dust from entering the planetary gear module 3.

[0047] Working principle: The output end of motor 1 drives the drive shaft 4 to rotate. Through the cooperation of key 5 and keyway 7, it can drive the input end of planetary reduction module 3 to run, thereby enabling multiple planetary reduction modules 3 to run for speed reduction transmission. Through the standardized planetary reduction modules 3, planetary reduction modules 3 with different reduction ratios can be arbitrarily combined and stacked. For example, planetary reduction modules 3 with ratios of 3:1, 5:1, and 10:1 can be combined to produce various reduction ratios such as 3, 5, 10, 15, 30, 50, and 150, which can be adapted to different home and office equipment needs. Only one type of motor 1 and several standard planetary reduction modules 3 need to be produced to cover all end products. There is no need to customize motor 1 for each product, which greatly reduces mold opening costs and inventory pressure.

[0048] When replacing the planetary reduction module 3, tighten the locking screw 26 to disengage it from the first support seat 11, releasing the locking screw 26 from its limiting and fixing effect on the drive gear 24. Pushing the locking screw 26 causes the drive gear 24 to rotate, which in turn drives the two driven gears 22. These driven gears then drive the two internal threaded cylinders 14 to rotate. Through the threaded engagement between the internal threaded cylinders 14 and the adjusting screw 15, and the mutual cooperation of the square sleeve 16 and the square limiting rod 17 to prevent rotation of the adjusting screw 15, the adjusting screw 15 can be moved to the left. The adjusting screw 15 then drives the connecting plate 18 and the insert rod 19 to the left. Move the insert rod 19 to disengage it from the fixed cylinder 20, thereby releasing the locking and fixing of the planetary reduction module 3. Push the planetary reduction module 3 to the left until it contacts the limit mechanism 9, and pull the planetary reduction module 3 upward to complete the disassembly. Place the planetary reduction module 3 to be replaced on the base 10 and rotate the drive gear 24 in the opposite direction to quickly lock and fix the planetary reduction module 3. The operation is simple and convenient, and it can realize the docking and disassembly of planetary reduction modules 3 without professional tools. It is simple and convenient to operate, and can quickly replace planetary reduction modules 3 with different reduction ratios. Different specifications of geared motors can be quickly assembled according to needs, and production efficiency is greatly improved.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular, reconfigurable, multi-stage geared motor structure, characterized in that: The system includes a motor (1), an assembly mechanism (2) installed at the bottom of the motor (1), and multiple planetary reduction modules (3) installed on the upper side of the assembly mechanism (2). The output ends of the motor (1) and the planetary reduction modules (3) are fixedly connected to drive shafts (4). Two keyways (5) are symmetrically fixedly connected on the drive shafts (4). The input end of the planetary reduction modules (3) is provided with slots (6) corresponding to the drive shafts (4). The drive shafts (4) are movably inserted into the slots (6). Two keyways (7) are symmetrically opened on the wall of the slots (6). The two keyways (5) are located in the two keyways (7) respectively. A reinforcing component (8) is connected between two adjacent planetary reduction modules (3). A limit mechanism (9) is connected between the vertical sidewall of the planetary reduction module (3) and the assembly mechanism (2).

2. The modular, reconfigurable multi-stage geared motor structure according to claim 1, characterized in that: The assembly mechanism (2) includes a base (10), with first support seats (11) fixedly connected to both the left and right ends of the base (10). An arc-shaped support plate (12) is fixedly connected to the right side of the first support seat (11) on the right side. A second support seat (13) is fixedly connected to the right end of the arc-shaped support plate (12). The second support seat (13) is fixedly connected to the motor (1) by multiple bolts. Two internally threaded cylinders (14) are symmetrically rotatably connected to the first support seat (11) on the left side. An adjusting screw (15) is threaded into each of the two internally threaded cylinders (14). The first support seat (11) on the right side... A square sleeve (16) is fixedly connected to the planetary reduction module (3) on the left side. A square limiting rod (17) is fixedly inserted into the square sleeve (16). The left end of the square limiting rod (17) is fixedly connected to the right end of the adjusting screw (15). A connecting plate (18) is fixedly connected to the left end of the adjusting screw (15). Two insert rods (19) are fixedly connected to the right side of the connecting plate (18). Multiple fixed cylinders (20) are fixedly connected to the left side of the planetary reduction module (3) on the left side. The insert rods (19) are movably inserted into the fixed cylinders (20). An adjusting component (21) is connected between the internal threaded cylinder (14) and the first support seat (11).

3. The modular, reconfigurable multi-stage geared motor structure according to claim 2, characterized in that: The adjustment assembly (21) includes two driven gears (22) fixedly sleeved outside the internal threaded cylinder (14). A rotating shaft (23) is rotatably connected to the left side of the first support seat (11) located on the left side. A driving gear (24) that meshes with the two driven gears (22) is fixedly sleeved on the rotating shaft (23). Both the driving gear (24) and the first support seat (11) are provided with threaded holes (25). A locking screw (26) is inserted into the threaded hole (25).

4. The modular, reconfigurable multi-stage geared motor structure according to claim 3, characterized in that: The reinforcement component (8) includes two semi-circular studs (27) that are respectively fixedly connected to the upper side of the two planetary reduction modules (3). The two semi-circular studs (27) form a complete cylindrical structure. The two semi-circular studs (27) are threaded with the same locking nut (28). The outer wall of the locking nut (28) is symmetrically fixedly connected with two push rods (29).

5. The modular, reconfigurable multi-stage geared motor structure according to claim 4, characterized in that: The limiting mechanism (9) includes a fixed block (30) fixedly connected to the vertical side wall of the planetary deceleration module (3), a guide block (31) fixedly connected to the upper side of the base (10), a guide rod (32) fixedly connected to the side of the fixed block (30) near the guide block (31), a guide hole (33) is provided on the vertical side wall of the guide block (31), and the guide rod (32) passes through the guide hole (33) through the guide block (31).

6. The modular, reconfigurable multi-stage geared motor structure according to claim 5, characterized in that: The first support base (11) and the lower side of the second support base (13) are fixedly connected to two mounting bases (34), and the bottom of the mounting base (34) is provided with a pin hole (35).

7. The modular, reconfigurable multi-stage geared motor structure according to claim 6, characterized in that: The left end of the locking screw (26) is fixedly connected to a turntable (36), and the outer edge of the turntable (36) is evenly provided with multiple anti-slip grooves (37).

8. The modular, reconfigurable multi-stage geared motor structure according to claim 7, characterized in that: A first sealing ring (38) is provided between the motor (1) and the planetary reduction module (3), and a second sealing ring (39) is provided between two adjacent planetary reduction modules (3).

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