Cycloidal-pin wheel meshing clearance fine adjustment locking device

Abstract

The invention relates to the technical field of cycloidal-pin wheels, in particular to a cycloidal-pin wheel meshing clearance fine-adjustment locking device which comprises a shell, a sealing plate and a machine base bearing the shell and further comprises a pin wheel shell, the pin wheel shell is installed in the shell, and pin teeth are installed on the inner side of the pin wheel shell; a cycloidal gear; the device has the beneficial effects that the clamping plate is clamped in the clamping groove, the eccentric bearing can be locked on the high-speed shaft, the eccentric bearing is prevented from rotating relative to the high-speed shaft, the driving disc is arranged on the high-speed shaft, the driving disc is in driving connection with the clamping groove and the clamping plate, and when the clamping plate is pressed, the eccentric bearing is prevented from rotating relative to the high-speed shaft. The eccentric bearing can be driven through the driving disc, so that the eccentric bearing rotates relative to the high-speed shaft, the phase position of the eccentric bearing is adjusted, the eccentric bearing can be adjusted under the condition that the device does not need to be disassembled, the adjusted eccentric bearing can be locked, and convenience and rapidness are achieved.

Description

Technical Field

[0001] This invention relates to the field of cycloidal pinwheel technology, and more specifically to a cycloidal pinwheel meshing clearance fine-tuning locking device. Background Technology

[0002] Cycloidal pinwheel reducers, as high-precision, high-torque, and compact transmission devices, are widely used in industrial robots, CNC machine tools, and automated equipment. Their core transmission components consist of a cycloidal wheel, pin tooth housing, and eccentric bearings, achieving speed reduction through the meshing between the cycloidal wheel and the pin teeth. During long-term operation, due to manufacturing errors, assembly deviations, and wear, the meshing clearance between the cycloidal wheel and the pin teeth may become too large or too small, affecting transmission accuracy, generating vibration and noise, and even leading to equipment failure.

[0003] Traditionally, adjusting the meshing clearance of the cycloidal pinwheel requires disassembling the entire reducer to expose the internal eccentric bearing, and then manually adjusting its phase using specialized tools. This process is not only cumbersome and time-consuming, but also demands a high level of technical skill from maintenance personnel. Furthermore, frequent disassembly and reassembly can introduce new assembly errors, reducing the overall reliability of the machine. In addition, after phase adjustment, reassembly and tightening of the eccentric bearing using bolts and pins further increases maintenance difficulty and downtime.

[0004] Therefore, there is an urgent need for a device that can precisely fine-tune the phase of the eccentric bearing directly from the outside without disassembling the overall structure of the reducer, and can reliably lock the adjusted position, so as to improve the maintainability, efficiency and operational stability of the cycloidal pinwheel reducer. Summary of the Invention

[0005] To address the aforementioned problems, namely the cumbersome disassembly and reassembly required for maintenance of existing cycloidal pinwheel reducers, this invention provides a cycloidal pinwheel meshing clearance fine-tuning and locking device.

[0006] A cycloidal pinwheel meshing clearance fine-tuning locking device includes a housing and a sealing plate, and a base supporting the housing. It further includes: a pin tooth housing, which is installed inside the housing and has pin teeth mounted on its inner side; a cycloidal gear, which rotates inside the pin tooth housing and meshes with the pin teeth; a high-speed shaft and a low-speed shaft, with an eccentric bearing mounted on the high-speed shaft, the eccentric bearing rotating inside the cycloidal gear, and the low-speed shaft being driven by the cycloidal gear; a locking plate and a locking slot, the locking plate sliding on the high-speed shaft, the locking slot being formed on the eccentric bearing, and the locking plate being engaged within the locking slot; and a drive disc. The drive disc rotates on the high-speed shaft, engages with the slot, and is driven by the clamping plate. By clamping the clamping plate into the slot, the eccentric bearing can be locked onto the high-speed shaft, preventing it from rotating relative to the shaft. By mounting the drive disc on the high-speed shaft and driving it to both the slot and the clamping plate, the eccentric bearing can be driven by the drive disc when the clamping plate is pressed, causing it to rotate relative to the high-speed shaft and thus adjusting its phase. This design allows the device to adjust the eccentric bearing without disassembly and to lock the adjusted bearing, making the process convenient and quick.

[0007] Preferably, a second sliding cavity is formed on the outer surface of the high-speed shaft. The second sliding cavity is arranged perpendicular to the central axis of the high-speed shaft. The clamping plate slides in the second sliding cavity by a second abutment spring. One end of the clamping plate away from the central axis of the high-speed shaft extends to the outside of the high-speed shaft.

[0008] Preferably, the eccentric bearing has multiple slots in its shaft hole, and the multiple slots are arranged at equal intervals along the circumference of the shaft hole. The portion of the clamping plate located outside the high-speed shaft is clamped in one of the slots. The number of slots can be set to twenty-four or thirty-six according to actual needs. In this case, when the clamping plate moves from one slot to the next adjacent slot, the eccentric bearing rotates fifteen or ten degrees. This setting facilitates the control of the rotation degree of the eccentric bearing. Of course, the number of slots can also be other numbers as needed.

[0009] Preferably, the high-speed shaft has an internal cavity, the side of which is connected to the outside of the high-speed shaft. The drive disk is rotatably mounted in the internal cavity, and multiple paddles are fixedly mounted at equal intervals on the outer surface of the drive disk. Some of the paddles extend out of the high-speed shaft and are inserted into the slots. When the drive disk is driven by the slot, the drive disk drives the paddles to rotate. The paddles, through engagement with the slots, drive the eccentric bearing to rotate relative to the high-speed shaft.

[0010] Preferably, the high-speed shaft has a toothed ring cavity inside, the side of the toothed ring cavity is connected to the second sliding cavity, a toothed ring is rotatably installed inside the toothed ring cavity, a part of the toothed ring extends into the second sliding cavity and meshes with the drive tooth groove opened on the side of the clamping plate, and an intermediate shaft is coaxially installed on the inner side of the toothed ring, the intermediate shaft is driven and connected to the mounting shaft of the drive disk through a transmission belt.

[0011] Preferably, the inner surface of the gear ring is provided with multiple helical grooves at equal intervals along the circumference, and the outer surface of the intermediate shaft is provided with a third sliding cavity. The helical tooth plate is slidably installed inside the third sliding cavity through a third abutting spring. A part of the helical tooth plate extends out of the intermediate shaft and abuts against the helical groove. By setting the helical tooth plate and helical groove between the gear ring and the intermediate shaft, when the clamping plate slides downward, it can only drive the gear ring to rotate, but cannot drive the drive disk to rotate through the intermediate shaft and the transmission belt. Only when the clamping plate slides back to its original position can the drive disk rotate through the gear ring, the intermediate shaft and the transmission belt, thereby driving the eccentric bearing to rotate for adjustment. This setting can prevent the device from jamming during adjustment. The gear ring, intermediate shaft, transmission belt and drive disk are all installed in the high-speed shaft during the manufacturing of this device. After these components are installed, the two sections of the high-speed shaft, one short and one long, are welded together to form a complete high-speed shaft.

[0012] Preferably, a blocking ring is fixedly installed on the outer surface of the high-speed shaft. The blocking ring is located at one end of the high-speed shaft near the eccentric bearing. A first sliding cavity is formed on the side of the blocking ring near the eccentric bearing. A sliding ring is slidably installed in the first sliding cavity through a first abutting spring. One end of the sliding ring extends out of the blocking ring and abuts against the eccentric bearing. By setting the blocking ring and making the sliding ring on the blocking ring abut against the eccentric bearing, not only can the lateral sliding of the eccentric bearing be restricted, but the eccentric bearing is also not locked, which facilitates the rotation and adjustment of the eccentric bearing after circumferential unlocking.

[0013] Preferably, the needle tooth shell is fixedly installed inside the outer shell, and the inner surface of the needle tooth shell is provided with a plurality of needle teeth at equal intervals along the circumference, and the outer surface of the needle teeth is fitted with a needle tooth sleeve.

[0014] Preferably, the cycloidal gear is composed of two identical monocycloidal gears, and each monocycloidal gear has a pin hole.

[0015] Preferably, the outer end of the high-speed shaft is connected to the output shaft of an external motor, and the inner end of the low-speed shaft is coaxially fixedly mounted with a roller. The inner end of the roller is fixedly mounted with a plurality of shaft pins that match the pin holes at equal intervals near the outer side, and the shaft pins are inserted into the pin holes.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. This invention locks the eccentric bearing onto the high-speed shaft by inserting a clamping plate into the clamping slot, preventing the eccentric bearing from rotating relative to the high-speed shaft. By setting a drive disc on the high-speed shaft and driving the drive disc to both the clamping slot and the clamping plate, the eccentric bearing can be driven by the drive disc when the clamping plate is pressed, causing the eccentric bearing to rotate relative to the high-speed shaft, thereby adjusting the phase of the eccentric bearing. This design allows the device to adjust the eccentric bearing without disassembly and to lock the adjusted eccentric bearing, which is convenient and quick.

[0018] 2. The number of slots in this invention can be set to twenty-four or thirty-six according to actual needs. When the card plate moves from one slot to the next adjacent slot, the eccentric bearing rotates fifteen or ten degrees. This setting facilitates the control of the rotation degree of the eccentric bearing.

[0019] 3. By setting a helical tooth plate and helical tooth groove between the toothed ring and the intermediate shaft, the present invention can only drive the toothed ring to rotate when the clamping plate slides downward, and cannot drive the drive disk to rotate through the intermediate shaft and the transmission belt. Only when the clamping plate slides down and resets can the drive disk be rotated through the toothed ring, the intermediate shaft and the transmission belt, thereby driving the eccentric bearing to rotate for adjustment. This setting can prevent the device from jamming during adjustment.

[0020] 4. By setting a blocking ring and having the sliding ring on the blocking ring abut against the eccentric bearing, the present invention can not only restrict the lateral sliding of the eccentric bearing, but also prevent the eccentric bearing from being locked, making it easy for the eccentric bearing to be rotated and adjusted after being unlocked in the circumferential direction. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic cross-sectional view of the outer casing of the present invention;

[0023] Figure 2 This is a schematic diagram of the external structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the needle-tooth shell structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the cycloidal gear structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the low-speed shaft structure of the present invention;

[0027] Figure 6This is a schematic diagram of the high-speed shaft structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the blocking ring structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the eccentric bearing structure of the present invention;

[0030] Figure 9 This is a schematic cross-sectional view of the blocking ring structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the high-speed shaft cross-sectional structure of the present invention;

[0032] Figure 11 This is a schematic cross-sectional view of the toothed ring and intermediate shaft of the present invention.

[0033] In the picture:

[0034] 1. Outer shell; 2. Sealing plate; 3. Base; 4. Needle tooth shell; 5. Needle tooth; 6. Cycloidal gear; 7. High-speed shaft; 8. Low-speed shaft; 9. Eccentric bearing; 10. Clamping plate; 11. Clamping slot; 12. Drive disc; 13. Second sliding cavity; 14. Second abutting spring; 15. Shaft hole; 16. Inner cavity; 17. Pulley block; 18. Gear ring cavity; 19. Gear ring; 20. Drive gear groove; 21. Intermediate shaft; 22. Transmission belt; 23. Helical gear groove; 24. Third sliding cavity; 25. Third abutting spring; 26. Helical gear plate; 27. Blocking ring; 28. First sliding cavity; 29. ​​First abutting spring; 30. Sliding ring; 31. Needle tooth sleeve; 32. Pin hole; 33. Roller; 34. Shaft pin. Detailed Implementation

[0035] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0036] like Figures 1-3 , Figures 5-7 and Figure 9As shown, this embodiment of the invention discloses a cycloidal pinwheel meshing clearance fine-tuning locking device, including a housing 1 and a sealing plate 2, and a base 3 supporting the housing 1. It also includes: a pin tooth housing 4, which is installed inside the housing 1, and pin teeth 5 are installed on the inner side of the pin tooth housing 4; a cycloidal gear 6, which rotates inside the pin tooth housing 4 and meshes with the pin teeth 5; a high-speed shaft 7 and a low-speed shaft 8, with an eccentric bearing 9 installed on the high-speed shaft 7, rotating inside the cycloidal gear 6, and the low-speed shaft 8 being drivenly connected to the cycloidal gear 6; a clamping plate 10 and a clamping groove 11, with the clamping plate 10 sliding on the high-speed shaft 7, the clamping groove 11 being formed on the eccentric bearing 9, and the clamping plate 10 being clamped in the clamping groove 11; and a drive disk 12, which rotates on the high-speed shaft 7. On the high-speed shaft 7, the drive disk 12 engages with the slot 11, and the drive disk 12 is driven to connect with the clamping plate 10. By clamping the clamping plate 10 into the slot 11, the eccentric bearing 9 can be locked onto the high-speed shaft 7, preventing the eccentric bearing 9 from rotating relative to the high-speed shaft 7. By setting the drive disk 12 on the high-speed shaft 7 and driving the drive disk 12 to connect with the slot 11 and the clamping plate 10 respectively, when the clamping plate 10 is pressed, the drive disk 12 can drive the eccentric bearing 9, causing the eccentric bearing 9 to rotate relative to the high-speed shaft 7, thereby adjusting the phase of the eccentric bearing 9. This setting allows the device to adjust the eccentric bearing 9 without disassembly and to lock the adjusted eccentric bearing 9, which is convenient and quick.

[0037] like Figure 9 As shown, a second sliding cavity 13 is provided on the outer surface of the high-speed shaft 7. The second sliding cavity 13 is arranged perpendicular to the central axis of the high-speed shaft 7. The clamping plate 10 slides in the second sliding cavity 13 through the second abutting spring 14. One end of the clamping plate 10 away from the central axis of the high-speed shaft 7 extends to the outside of the high-speed shaft 7.

[0038] like Figure 7 As shown, multiple slots 11 are provided in the shaft hole 15 of the eccentric bearing 9. The multiple slots 11 are arranged at equal intervals along the circumference of the shaft hole 15. The portion of the clamping plate 10 located outside the high-speed shaft 7 is clamped in one of the slots 11. The number of slots 11 can be set to twenty-four or thirty-six according to actual needs. When the clamping plate 10 moves from one slot 11 to the next adjacent slot 11, the eccentric bearing 9 rotates fifteen degrees or ten degrees. This setting facilitates the control of the rotation degree of the eccentric bearing 9. Of course, the number of slots 11 can also be other numbers as needed.

[0039] like Figure 9As shown, the high-speed shaft 7 has an inner cavity 16 inside, and the side of the inner cavity 16 is connected to the outside of the high-speed shaft 7. The drive disk 12 is rotatably installed in the inner cavity 16. Multiple paddle blocks 17 are fixedly installed at equal intervals on the outer surface of the drive disk 12. Some paddle blocks 17 extend out of the high-speed shaft 7 and are inserted into the slot 11. When the drive disk 12 is driven by the card plate 10, the drive disk 12 drives the paddle blocks 17 to rotate. The paddle blocks 17 drive the eccentric bearing 9 to rotate relative to the high-speed shaft 7 by meshing with the slot 11.

[0040] like Figure 9 As shown, a gear ring cavity 18 is provided inside the high-speed shaft 7. The side of the gear ring cavity 18 is connected to the second sliding cavity 13. A gear ring 19 is rotatably installed inside the gear ring cavity 18. A part of the gear ring 19 extends into the second sliding cavity 13 and meshes with the drive tooth groove 20 opened on the side of the clamping plate 10. An intermediate shaft 21 is coaxially installed on the inner side of the gear ring 19. The intermediate shaft 21 is driven and connected to the mounting shaft of the drive disk 12 through a transmission belt 22.

[0041] like Figure 10 As shown, the inner surface of the gear ring 19 is provided with multiple helical grooves 23 at equal intervals along the circumference, and the outer surface of the intermediate shaft 21 is provided with a third sliding cavity 24. A helical tooth plate 26 is slidably mounted inside the third sliding cavity 24 via a third abutting spring 25. A portion of the helical tooth plate 26 extends out of the intermediate shaft 21 and abuts against the helical grooves 23. By providing the helical tooth plate 26 and the helical grooves 23 between the gear ring 19 and the intermediate shaft 21, when the clamping plate 10 slides downwards, it can only drive the gear ring 19 to rotate, and cannot pass through the intermediate shaft 21 and the transmission... The drive disc 12 rotates via belt 22. Only when the clamping plate 10 slides back to its original position can the drive disc 12 rotate via the gear ring 19, intermediate shaft 21, and transmission belt 22, thereby driving the eccentric bearing 9 to rotate for adjustment. This setting can prevent the device from jamming during adjustment. The gear ring 19, intermediate shaft 21, transmission belt 22, and drive disc 12 are all installed inside the high-speed shaft 7 during the manufacturing of this device. After these components are installed, the two sections of the high-speed shaft, one short and one long, are welded together to form a complete high-speed shaft 7.

[0042] like Figure 6 and Figure 8As shown, a blocking ring 27 is fixedly installed on the outer surface of the high-speed shaft 7. The blocking ring 27 is located at one end of the high-speed shaft 7 near the eccentric bearing 9. A first sliding cavity 28 is opened on the side of the blocking ring 27 near the eccentric bearing 9. A sliding ring 30 is slidably installed in the first sliding cavity 28 through a first abutting spring 29. One end of the sliding ring 30 extends out of the blocking ring 27 and abuts against the eccentric bearing 9. By setting the blocking ring 27 and making the sliding ring 30 sliding on the blocking ring 27 abut against the eccentric bearing 9, not only can the lateral sliding of the eccentric bearing 9 be restricted, but the eccentric bearing 9 will not be locked, so that the eccentric bearing 9 can be rotated and adjusted after being unlocked in the circumferential direction.

[0043] like Figure 2 As shown, the needle tooth shell 4 is fixedly installed inside the outer shell 1. The inner surface of the needle tooth shell 4 is provided with a plurality of needle teeth 5 at equal intervals along the circumference, and the outer surface of the needle teeth 5 is fitted with a needle tooth sleeve 31.

[0044] like Figure 3 As shown, the cycloidal gear 6 is composed of two identical monocycloidal gears, each of which has a pin hole 32.

[0045] like Figures 3-4 As shown, the outer end of the high-speed shaft 7 is connected to the output shaft of an external motor for transmission, and the inner end of the low-speed shaft 8 is coaxially fixedly mounted with a roller 33. The inner end of the roller 33 is fixedly mounted with multiple shaft pins 34 with matching pin holes 32 at equal intervals near the outer side, and the shaft pins 34 are inserted into the pin holes 32.

[0046] Working principle:

[0047] When the device body is running, the high-speed shaft 7 is connected to the output shaft of the external motor. When the external motor is running, it drives the high-speed shaft 7 to rotate at high speed. When the high-speed shaft 7 rotates, the two eccentric bearings 9 with a phase difference of 180° on the outer surface of the high-speed shaft 7 rotate synchronously. Since the two eccentric bearings 9 are located inside the two cycloidal gears 6 respectively, when the two eccentric bearings 9 rotate, they will drive the two cycloidal gears 6 to make eccentric circular motion around the input shaft, similar to the revolution of planetary gears. At the same time, since the cycloidal gears 6 mesh with the fixed needle teeth, this revolution will force the cycloidal gears 6 to generate a reverse rotation, that is, a rotation relative to their own center. Although the cycloidal gears 6 are making complex planar motion, with both revolution and rotation, only the net rotation component is transmitted to the roller 33 through the setting of the shaft pin 34 and the pin hole 32. The roller 33 is fixedly connected to the low-speed shaft 8. Therefore, the low-speed shaft 8 outputs rotation at an extremely low speed and with a large torque.

[0048] After long-term operation of this equipment, due to manufacturing errors, assembly deviations, and wear, the meshing clearance between the cycloidal gear 6 and the pinion housing 4 may become too large or too small. When maintenance is required, disconnect the high-speed shaft 7 from the input shaft of the external motor. Use a tool to press down the clamping plate 10 that is protruding from the device until the resistance is too great to press down further. At this point, the outer end of the clamping plate 10 is already embedded inside the high-speed shaft 7. Then release the pressed clamping plate 10, and the clamping plate 10 will slide upward and reset under the pressure of the second abutment spring 14. Because the helical tooth plate 26 and helical tooth groove 23 are provided between the gear ring 19 and the intermediate shaft 21, when the clamping plate 10 slides downward, it can only drive the gear ring 19 to rotate, and cannot drive the drive disc 1 through the intermediate shaft 21 and the transmission belt 22. 2. Rotation: Only when the clamping plate 10 slides back to its original position can the drive disc 12 rotate via the gear ring 19, intermediate shaft 21, and transmission belt 22, thereby driving the eccentric bearing 9 to rotate for adjustment. This setting prevents the device from jamming during adjustment. When the drive disc 12 rotates, it synchronously drives the lever 17 to rotate. Since the lever 17 can be locked in the slot 11, the rotating lever 17 can drive the eccentric bearing 9 to rotate through the slot 11, causing the eccentric bearing 9 to rotate on the high-speed shaft 7 for phase adjustment. The phase difference between the two eccentric bearings 9 is always maintained at 180°. In addition, a blocking ring 27 is fixedly installed on the outer surface of the high-speed shaft 7 near the end of the eccentric bearing 9, and a first abutment spring 29 is connected to the blocking ring 27. The sliding ring 30 is slidably installed and abuts against the eccentric bearing 9. This not only restricts the lateral sliding of the eccentric bearing 9 but also prevents it from locking up, facilitating rotational adjustment after circumferential unlocking. The device locks the eccentric bearing 9 onto the high-speed shaft 7 by engaging the locking plate 10 within the locking groove 11, preventing rotation relative to the shaft. A drive disc 12 is mounted on the high-speed shaft 7 and connected to both the locking groove 11 and the locking plate 10. When the locking plate 10 is pressed, the drive disc 12 drives the eccentric bearing 9, causing it to rotate relative to the high-speed shaft 7, thus adjusting its phase. This design allows the device to... When disassembly is required, the eccentric bearing 9 can be adjusted and locked after adjustment, which is convenient and quick. The number of slots 11 can be set to twenty-four or thirty-six according to actual needs. When the clamping plate 10 moves from one slot 11 to the next adjacent slot 11, the eccentric bearing 9 rotates fifteen or ten degrees. This setting facilitates control of the rotation degree of the eccentric bearing 9. Of course, the number of slots 11 can also be other numbers as needed. In addition, the gear ring 19, intermediate shaft 21, transmission belt 22 and drive disk 12 are all installed in the high-speed shaft 7 during the manufacture of this device. After these components are installed, the two sections of the high-speed shaft, one short and one long, are welded together to form a complete high-speed shaft 7. It should be noted that...The final installation phase is selected at the position with the smallest gap and the most flexible, unhindered rotation. When adjusting the eccentric bearing 9 without disassembling the device, the meshing clearance between the cycloidal gear 6 and the pin sleeve 31 can be checked by hand and by using an open-circuit current method. This involves slowly rotating the high-speed shaft 7 to feel for any jamming or excessive looseness, while simultaneously monitoring the external motor's open-circuit current to ensure it is stable and not excessively high. This ensures the adjusted device achieves a uniform meshing clearance throughout the circumference, minimal backlash, and a low and stable open-circuit current. Furthermore, after the clamping plate 10 is embedded in the second sliding cavity 13, the drive disk 12 begins to rotate as it begins to slide upwards. The rotation of the drive ring 19 and drive disk 12 is stopped when the outer end of the clamping plate 10 is flush with the outer surface of the high-speed shaft 7.

[0049] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A cycloidal pinwheel meshing clearance fine-tuning locking device, comprising a housing (1) and a sealing plate (2), and a base (3) supporting the housing (1), characterized in that, Also includes: Needle-tooth shell (4), the needle-tooth shell (4) is installed inside the outer shell (1), and needle teeth (5) are installed on the inner side of the needle-tooth shell (4). Cycloidal gear (6), the cycloidal gear (6) rotates inside the needle tooth housing (4), and the cycloidal gear (6) meshes with the needle tooth (5); A high-speed shaft (7) and a low-speed shaft (8) are provided. An eccentric bearing (9) is mounted on the high-speed shaft (7). The eccentric bearing (9) rotates inside the cycloidal gear (6). The low-speed shaft (8) is driven to connect with the cycloidal gear (6). The card plate (10) and the slot (11) are provided. The card plate (10) slides on the high-speed shaft (7), and the slot (11) is opened on the eccentric bearing (9). The card plate (10) is locked in the slot (11). The drive disk (12) rotates on the high-speed shaft (7), the drive disk (12) engages with the slot (11), and the drive disk (12) is driven to connect with the card plate (10).

2. The cycloidal pinwheel meshing clearance fine-tuning and locking device according to claim 1, characterized in that, The outer surface of the high-speed shaft (7) is provided with a second sliding cavity (13). The second sliding cavity (13) is set perpendicular to the central axis of the high-speed shaft (7). The clamping plate (10) slides in the second sliding cavity (13) by a second abutting spring (14). One end of the clamping plate (10) away from the central axis of the high-speed shaft (7) extends to the outside of the high-speed shaft (7).

3. The cycloidal pinwheel meshing clearance fine-tuning and locking device according to claim 2, characterized in that, The eccentric bearing (9) has multiple slots (11) in its shaft hole (15). The multiple slots (11) are arranged at equal intervals along the circumference of the shaft hole (15). The portion of the clamping plate (10) located outside the high-speed shaft (7) is clamped in one of the slots (11).

4. The cycloidal pinwheel meshing clearance fine-tuning and locking device according to claim 3, characterized in that, The high-speed shaft (7) has an inner cavity (16) inside, and the side of the inner cavity (16) is connected to the outside of the high-speed shaft (7). The drive disk (12) is rotatably installed in the inner cavity (16). Multiple paddles (17) are fixedly installed at equal intervals on the outer surface of the drive disk (12). Some of the paddles (17) extend out of the high-speed shaft (7) and are inserted into the slot (11).

5. The cycloidal pinwheel meshing clearance fine-tuning and locking device according to claim 4, characterized in that, The high-speed shaft (7) has a toothed ring cavity (18) inside. The side of the toothed ring cavity (18) is connected to the second sliding cavity (13). A toothed ring (19) is rotatably installed inside the toothed ring cavity (18). A part of the toothed ring (19) extends into the second sliding cavity (13) and meshes with the drive tooth groove (20) opened on the side of the clamping plate (10). An intermediate shaft (21) is coaxially installed on the inner side of the toothed ring (19). The intermediate shaft (21) is driven and connected to the mounting shaft of the drive disk (12) through a transmission belt (22).

6. The cycloidal pinwheel meshing clearance fine-tuning and locking device according to claim 5, characterized in that, The inner surface of the toothed ring (19) is provided with a plurality of oblique tooth grooves (23) at equal intervals along the circumference. The outer surface of the intermediate shaft (21) is provided with a third sliding cavity (24). An oblique tooth plate (26) is slidably installed inside the third sliding cavity (24) through a third abutting spring (25). A part of the oblique tooth plate (26) extends out of the outside of the intermediate shaft (21) and abuts against the oblique tooth groove (23).

7. The cycloidal pinwheel meshing clearance fine-tuning and locking device according to claim 1, characterized in that, A blocking ring (27) is fixedly installed on the outer surface of the high-speed shaft (7). The blocking ring (27) is located at one end of the high-speed shaft (7) near the eccentric bearing (9). A first sliding cavity (28) is opened on the side of the blocking ring (27) near the eccentric bearing (9). A sliding ring (30) is slidably installed in the first sliding cavity (28) through a first abutting spring (29). One end of the sliding ring (30) extends out of the blocking ring (27) and abuts against the eccentric bearing (9).

8. The cycloidal pinwheel meshing clearance fine-tuning locking device according to claim 1, characterized in that, The needle tooth shell (4) is fixedly installed inside the outer shell (1). The inner surface of the needle tooth shell (4) is provided with a plurality of needle teeth (5) at equal intervals along the circumference. The outer surface of the needle teeth (5) is fitted with a needle tooth sleeve (31).

9. The cycloidal pinwheel meshing clearance fine-tuning and locking device according to claim 1, characterized in that, The cycloidal gear (6) is composed of two identical monocycloidal gears, and each monocycloidal gear has a pin hole (32).

10. The cycloidal pinwheel meshing clearance fine-tuning locking device according to claim 9, characterized in that, The outer end of the high-speed shaft (7) is connected to the output shaft of the external motor for transmission. The inner end of the low-speed shaft (8) is coaxially fixedly mounted with a roller (33). The inner end of the roller (33) is fixedly mounted with multiple shaft pins (34) that match the pin holes (32) at equal intervals near the outer side. The shaft pins (34) are inserted into the pin holes (32).

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