Planetary reduction gear structure with changeable output mode

Abstract

The utility model relates to planetary reducer technical field discloses a planetary reducer structure of changeable output mode, including the casing, motor assembly, planetary gear assembly and output component, planetary gear assembly is provided with sun gear, planetary gear, gear ring in proper order, gear wheel is provided with first transmission disc, sun gear is provided with second transmission disc, including third transmission disc, third transmission disc and motor assembly swing joint, the end face of first transmission disc, second transmission disc, third transmission disc all are provided with the concave -convex component of the mutual link, the casing still is provided with the adjusting component of adjustable third transmission disc position, the utility model has the following advantages: the number of teeth of sun gear is less than the number of teeth of gear ring, through adjusting the position of third transmission disc, makes third carousel and first carousel or second carousel link, thereby makes motor assembly transmission sun gear or gear ring, can manually adjust motor output shaft high -speed low -torque mode and low -speed high -torque mode, and the maintenance cost is low.

Description

Technical Field

[0001] This utility model relates to the field of planetary reducer technology, and in particular to a planetary reducer structure with a changeable output mode. Background Technology

[0002] Planetary gear reducers are power input devices widely used in mechanical transmission. Compared to the direct output of a motor rotor in a transmission structure, a planetary gear reducer outputs power by reducing the speed of the motor rotor and increasing the torque through a planetary gear set with a certain speed ratio.

[0003] Traditional planetary gear reducers have a fixed transmission ratio, such as the planetary gear reducer disclosed in Chinese patent CN207893067U. These planetary gear reducers have a single output mode. When the equipment needs to switch between high speed and low torque or low speed and high torque operating conditions, it is usually necessary to configure an additional frequency converter or replace the gear reducer with a different specification, which increases costs. Especially for equipment with limited space, the feasibility of frequently replacing the gear reducer or adding electronic modules is low. In view of this, the inventors have made a new invention. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a planetary reducer structure with a changeable output mode, which has the advantage of purely mechanical high and low speed mode switching.

[0005] To achieve the above objectives, this utility model provides a planetary reducer structure with a changeable output mode, comprising a housing, a motor assembly disposed within the housing, a planetary gear assembly assembled within the housing, and an output assembly disposed outside the housing and connected to the planetary gear assembly. The planetary gear assembly sequentially comprises a sun gear, a plurality of planet gears meshing with the sun gear, and a gear ring meshing with the planet gears. The gear ring is movably connected to the housing. A first transmission disc is disposed at the bottom of the gear ring. A first connecting rod is disposed on the sun gear. A second transmission disc is disposed at the end of the first connecting rod. A third transmission disc is disposed between the first and second transmission discs. A second connecting rod is disposed on the third transmission disc. The second connecting rod passes through the first transmission disc and is movably connected to the motor assembly. The end faces of the first, second, and third transmission discs are all provided with interlocking concave and convex components. The housing is also provided with an adjustment component for adjusting the position of the third transmission disc. The adjustment component can connect the third transmission disc with the first transmission disc or drive the third transmission disc to connect with the second transmission disc.

[0006] The planetary gear assembly is provided with a limiting turntable connected to the planetary gears, the sun gear is provided with a third connecting rod passing through the limiting turntable, the limiting turntable is provided with a first limiting groove, the housing is provided with a positioning hole and a first locking pin that can pass through the positioning hole and be inserted into the first limiting groove, the gear ring is provided with a second limiting groove, and the housing is provided with a second locking pin that can be inserted into the second limiting groove.

[0007] Furthermore, the concave-convex component is provided with a plurality of protruding teeth that surround the end faces of the first transmission disk, the second transmission disk, and the third transmission disk and are equidistant from each other. There is a notch between adjacent protruding teeth, which can perfectly accommodate the protruding teeth, so that the two opposing concave-convex components can mesh with each other.

[0008] Furthermore, the housing is provided with a limiting window, and the adjustment component is provided with a bearing a that is movably connected to the second connecting rod, a positioning collar disposed outside the bearing a, and a locking tongue that can slide within the limiting window.

[0009] Furthermore, the limiting window is provided with an upper limiting port and a lower limiting port. A first side groove is provided on one side wall of the upper limiting port and the lower limiting port. A second side groove is provided on one side of the first side groove. A third locking pin is provided in the first side groove, which can be inserted into the upper limiting port or the lower limiting port. A fourth locking pin is provided at one end of the third locking pin, which can be moved into the second side groove. The locking tongue is provided with a locking hole that can cooperate with the third locking pin.

[0010] Preferably, a first magnetic element is provided on one side wall of the second side groove, and a second magnetic element is provided on the fourth locking pin.

[0011] Furthermore, the motor assembly is provided with an input shaft, and a fourth connecting rod is provided at the end of the input shaft. The end of the second connecting rod is provided with a first guide groove that engages with the fourth connecting rod. The fourth connecting rod and the first guide groove are in the shape of a rhombus cross section.

[0012] Furthermore, a bearing b is provided between the gear ring and the housing.

[0013] Furthermore, the third connecting rod is provided with an annular groove for limiting connection with the limiting turntable. The limiting turntable is provided with a rolling groove at the corresponding position of the housing and at the corresponding position of the upper and lower side walls of the annular groove. Multiple balls are provided in the rolling groove.

[0014] Furthermore, the planetary gear is provided with a fifth connecting rod that passes through the limiting turntable, and a bearing c is provided between the fifth connecting rod and the limiting turntable.

[0015] Furthermore, the output component is provided with a connector, the connector is provided with a connector port that can be fitted with the fifth connecting rod, and the connector is provided with an output shaft.

[0016] Furthermore, a sixth connecting rod extends from the third connecting rod, the output component is provided with a connecting seat, the connecting seat is provided with a second guide groove that can cooperate with the sixth connecting rod, and the connecting seat is provided with an output shaft.

[0017] Preferably, the connecting seat is provided with an anti-slip component on its exterior.

[0018] Beneficial Effects: Compared with the prior art, the planetary reducer structure of this utility model with a changeable output mode includes a housing, a motor assembly, a planetary gear assembly, and an output assembly. The planetary gear assembly is sequentially provided with a sun gear, planet gears, and a ring gear. The gears are provided with a first transmission disk, the sun gear is provided with a second transmission disk, and a third transmission disk is included. The third transmission disk is movably connected to the motor assembly. The end faces of the first, second, and third transmission disks are all provided with interlocking concave and convex components. The housing is also provided with an adjustment component that can adjust the position of the third transmission disk. This utility model has the following advantages: the number of teeth on the sun gear is less than the number of teeth on the ring gear. By adjusting the position of the third transmission disk, the third disk can be connected to the first or second disk, thereby enabling the motor assembly to drive the sun gear or the ring gear. The high-speed, low-torque mode and the low-speed, high-torque mode of the motor output shaft can be manually adjusted, resulting in low maintenance costs. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the planetary reducer of this utility model.

[0020] Figure 2 This is an exploded view of the planetary reducer of this utility model.

[0021] Figure 3 This is an exploded view of the planetary gear assembly structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the third transmission disc structure of this utility model.

[0023] Figure 5 This is a partial cross-sectional view of the planetary reducer of this utility model.

[0024] Figure 6 This is a schematic diagram of the limiting window structure of this utility model.

[0025] Figure 7 This is a schematic diagram of the output component structure used in the low-speed, high-torque mode of this utility model.

[0026] Figure 8 This is a schematic diagram of the output component structure used in the high-speed, low-torque mode of this utility model.

[0027] The reference numerals in the figures include:

[0028] Housing--1, Adjustment assembly--11, Bearing a--111, Positioning ring--112, Locking tongue--113, Locking hole--114, Arc-shaped baffle--115, Positioning hole--12, First locking pin--13, Second locking pin--14, Motor assembly--2, Input shaft--21, Fourth connecting rod--22, Planetary gear assembly--3, Sun gear--31, First connecting rod--311, Second transmission disc--312, Third connecting rod--313, Annular groove--314, Sixth connecting rod--315, Planetary gear--32, Fifth connecting rod--321, Bearing c--322, Gear ring--33, First transmission disc--331, Second limiting groove--3 32, Bearing b--333, Third transmission disc--34, Second connecting rod--341, First guide groove--342, Concave and convex components--35, Convex teeth--351, Notch--352, Limiting turntable--36, First limiting groove--361, Rolling groove--362, Ball--363, Output assembly--4, Connecting seat--41, Connecting port--42, Output shaft--43, Second guide groove--44, Anti-slip component--45, Limiting window--5, Upper limiting port--51, Lower limiting port--52, First side groove--53, Second side groove--54, Third locking pin--55, Fourth locking pin--56, First magnetic component--57, Second magnetic component--58. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1 to 8 This utility model will be described in detail.

[0030] This utility model discloses a planetary reducer structure with a changeable output mode, comprising a housing 1, within which a motor assembly 2 is housed. The motor assembly 2 is a standard industrial frequency induction motor, characterized by low cost and low maintenance. It also includes a planetary gear assembly 3 mounted within the housing 1 and an output assembly 4 mounted outside the housing 1 and connected to the planetary gear assembly 3. The planetary gear assembly 3 sequentially comprises a sun gear 31, multiple planet gears 32 meshing with the sun gear 31, and a gear ring 33 meshing with the planet gears 32. The gear ring 33 is movably connected to the housing 1. A first transmission disc 331 is located at the bottom of the gear ring 33. The sun gear 31 is provided with a first connecting rod 311, and a second transmission disc 312 is located at the end of the first connecting rod 311. The first transmission disc 331 and the second transmission disc 312... A third transmission disc 34 is provided between the first transmission disc 331 and the motor assembly 2. The third transmission disc 34 is provided with a second connecting rod 341, which passes through the first transmission disc 331 and is movably connected to the motor assembly 2. The end faces of the first transmission disc 331, the second transmission disc 312, and the third transmission disc 34 are all provided with interlocking concave and convex members 35. The housing 1 is also provided with an adjustment component 11 that can adjust the position of the third transmission disc 34. The adjustment component 11 can connect the third transmission disc 34 with the first transmission disc 331 or drive the third transmission disc 34 to connect with the second transmission disc 312. Motor assembly 2 can directly drive the third transmission disk 34 to rotate. In planetary gear assembly 3, the sun gear 31 is in the center position, and the ring gear 33 is in the outer ring position. The sun gear 31 and the ring gear 33 are on the same axis. The number of teeth of the sun gear 31 is less than the number of teeth of the ring gear 33. Adjustment assembly 11 drives the third transmission disk 34 to move, so that the third transmission disk 34 is connected to the first transmission disk 331. At this time, motor assembly 2 can drive the ring gear 33 to rotate, making the ring gear 33 the main power input component of planetary gear assembly 3. This is the high speed and low torque mode. Adjustment assembly 11 drives the third transmission disk 34 to move, so that the third transmission disk 34 is connected to the second transmission disk 312. At this time, motor assembly 2 can drive the sun gear 31 to rotate, making the sun gear 31 the main power input component of planetary gear assembly 3. This is the low speed and high torque mode. Two output speeds can be adjusted without the use of a frequency converter.

[0031] The planetary gear assembly 3 is provided with a limiting turntable 36 connected to the planetary gears 32. When the planetary gears 32 rotate and are displaced, the limiting turntable 36 will also rotate. The sun gear 31 is provided with a third connecting rod 313 that passes through the limiting turntable 36. The limiting turntable 36 is provided with a first limiting groove 361. The housing 1 is provided with a positioning hole 12 and a first locking pin 13 that can pass through the positioning hole 12 and be inserted into the first limiting groove 361. The gear ring 33 is provided with a second limiting groove 332. The housing 1 is provided with a second locking pin 14 that can be inserted into the second limiting groove 332. The edge of the limiting turntable 36 is embedded in the housing to position the limiting turntable 36. In practical application, when the third transmission disc 34 is connected to the first transmission disc 331, the second locking pin 14 is pulled out, allowing the gear ring 33 to rotate. The first locking pin 13 is inserted into the first limiting groove 361, positioning the limiting turntable 36. The limiting turntable 36 no longer rotates, so the planetary gear 32 no longer shifts. This effect allows the gear ring 33 to drive the sun gear 31 through the planetary gear 32 when rotating, causing the sun gear 31 to rotate. In the high-speed, low-torque mode, the sun gear 31 is the power output component of the planetary gear assembly 3, driving the output component 4. When the third transmission disc 34 is connected to the second transmission disc 312, the second locking pin 14 is inserted into the second limiting groove 332, causing the gear ring 33 to stop rotating. The first locking pin 13 is pulled out, allowing the limiting turntable 36 to be selected. This effect allows the planetary gear 32 to rotate around the sun gear 31 when the sun gear 31 is in a rotational displacement. In the low-speed, high-torque mode, the planetary gear 32 is the power output component of the planetary gear assembly 3, driving the output component 4.

[0032] It is worth mentioning that, regardless of whether it is the high-speed low-torque mode or the low-speed high-torque mode, the output torque of the output component 4 is always greater than the input torque of the motor component 2.

[0033] The concave-convex member 35 is provided with a plurality of protruding teeth 351 that surround the end faces of the first transmission disk 331, the second transmission disk 312, and the third transmission disk 34 and are equidistantly arranged. Adjacent protruding teeth 351 are separated by recesses 352, which perfectly accommodate the protruding teeth 351, allowing the opposing concave-convex members 35 to mesh with each other. When two opposing concave-convex members 35 are mated, for example, when the third transmission disk 34 is mated with the first transmission disk 331, the protruding teeth 351 of the concave-convex member 35 on the first transmission disk 331 mate with the recesses 352 of the concave-convex member 35 on the third transmission disk 34, and simultaneously, the recesses 352 of the concave-convex member 35 on the first transmission disk 331 mate with the protruding teeth 351 of the concave-convex member 35 on the third transmission disk 34, causing the first transmission disk 331 and the third transmission disk 34 to mesh with each other, thus enabling the motor assembly 2 to drive the gear ring 33.

[0034] The housing 1 is provided with a limiting window 5. The adjusting assembly 11 is sequentially provided with a bearing a111 movably connected to the second connecting rod 341, a positioning sleeve 112 disposed outside the bearing a111, and a locking tongue 113 that can slide within the limiting window 5. The bearing a111 ensures that the second connecting rod 341 will not rotate while rotating, and the locking tongue 113 extends to the outside of the housing 1. After the motor assembly 2 is stopped, the user can manually move the locking tongue 113 to change the position of the third transmission disc 34, thereby adjusting the output mode of the planetary reducer of this utility model between a high-speed, low-torque mode and a low-speed, high-torque mode.

[0035] The limiting window 5 is provided with an upper limiting port 51 and a lower limiting port 52. A first side groove 53 is provided on one side wall of both the upper and lower limiting ports 51 and 52. A second side groove 54 is provided on one side of the first side groove 53. A third locking pin 55, which can be inserted into the upper or lower limiting port 51 or 52, is provided in the first side groove 53. A fourth locking pin 56, which can be moved into the second side groove 54, is provided at one end of the third locking pin 55. The locking tongue 113 is provided with a locking hole 114 that can cooperate with the third locking pin 55. When the locking tongue 113 moves to the upper limiting port 51, the third transmission disc 34 connects with the second transmission disc 312. When the locking tongue 113 moves to the lower limiting port 52, the third transmission disc 34 connects with the first transmission disc 331. After the locking tongue 113 moves to the upper limit port 51 or the lower limit port 52, it can be pushed to the corresponding position of the first side groove 53. Then, the third locking pin 55 is inserted into the lock hole 114, so that the locking tongue 113 is locked in the upper limit port 51 or the lower limit port 52. After the third locking pin 55 extends into the upper limit port 51 or the lower limit port 52, the fourth locking pin 56 will follow the third locking pin 55 to the corresponding position of the second side groove 54. Pushing the fourth locking pin 56 into the second side groove 54 can lock the third locking pin 55, preventing the locking tongue 113 from deviating during the operation of the equipment, locking the position of the third transmission plate 34, and improving stability and safety.

[0036] A first magnetic element 57 is provided on one side wall of the second side groove 54, and a second magnetic element 58 is provided on the fourth locking pin 56. The first magnetic element 57 is a neodymium magnet, and the second magnetic element 58 is a neodymium magnet or an iron sheet, so that the fourth locking pin 56 can be fixed in the second side groove 54, preventing the fourth locking pin 56 from dislodging from the second side groove 54 due to vibration or other factors.

[0037] The motor assembly 2 is provided with an input shaft 21, and a fourth connecting rod 22 is provided at the end of the input shaft 21. A first guide groove 342 is provided at the end of the second connecting rod 341 to engage with the fourth connecting rod 22. The fourth connecting rod 22 and the first guide groove 342 have a rhomboid cross-sectional shape. In this structure, the second connecting rod 341 engages with the fourth connecting rod 22. The cross-sectional shape of the fourth connecting rod 22 and the first guide groove 342 is preferably a regular geometric shape, such as a regular hexagon or a regular pentagon, which allows the fourth connecting rod 22 to be connected to the first guide groove 342 from multiple directions, improving assembly convenience. The fourth connecting rod 22 and the first guide groove 342 are circumferentially fixed, while the second connecting rod 341 can be axially displaced relative to the fourth connecting rod 22. This ensures that the motor assembly 2 can always drive the third transmission disk 34 to rotate, whether it is connected to the first transmission disk 331 or the second transmission disk 312.

[0038] A bearing b333 is provided between the gear ring 33 and the housing 1. The inner and outer sides of the bearing b333 abut against the gear ring 33 and the inner wall of the housing 1 respectively, so that the gear ring 33 and the housing 1 are axially fixed, while avoiding direct contact between the gear ring 33 and the inner wall of the housing 1. After the third transmission disk 34 is connected to the first transmission disk 331, the motor assembly 2 can drive the gear ring 33 to rotate smoothly.

[0039] The third connecting rod 313 is provided with an annular groove 314 for limiting connection with the limiting turntable 36. The limiting turntable 36 has corresponding grooves 362 at positions corresponding to the housing 1 and at corresponding positions on the upper and lower sidewalls of the annular groove 314. Multiple balls 363 are disposed within the grooves 362. The gear ring 33 is axially fixed to the housing 1 via bearing b333. The sun gear 31 and planetary gears 32 are axially fixed to the housing 1 via the limiting turntable 36, ensuring the planetary reduction assembly is stably assembled within the housing 1. By providing the grooves 362 and balls 363, direct contact between the limiting turntable 36 and the housing 1 or other components of the planetary reduction assembly is avoided, significantly reducing the mechanical wear of the limiting turntable 36 during rotation and improving its service life.

[0040] The planetary gear 32 is provided with a fifth connecting rod 321 passing through the limiting turntable 36, and a bearing c322 is provided between the fifth connecting rod 321 and the limiting turntable 36. When the sun gear 31 drives the planetary gear 32, the planetary gear 32 rotates around the sun gear 31, thereby driving the limiting turntable 36 to rotate. The bearing c322 can separate the fifth connecting rod 321 from the limiting turntable 36, further reducing the wear of the components.

[0041] This utility model can be equipped with output components 4 with different connection structures according to the changes in high speed low torque mode and low speed high torque mode.

[0042] In the low-speed, high-torque mode, the output component 4 is equipped with a connecting seat 41. The connecting seat 41 has a connecting port 42 for attaching the fifth connecting rod 321, and an output shaft 43 is mounted on the connecting seat 41. After the output component 4 is connected and fixed to the planetary reduction assembly, the motor assembly 2 drives the sun gear 31 to rotate, which in turn causes the planetary gears 32 to drive the connecting seat 41 to rotate, thereby causing the output shaft 43 to output power.

[0043] In the high-speed, low-torque mode, the output component 4 structure includes a sixth connecting rod 315 extending from the third connecting rod 313. The output component 4 has a connecting seat 41, which contains a second guide groove 44 that mates with the sixth connecting rod 315. An output shaft 43 is mounted on the connecting seat 41. The sixth connecting rod 315 and the second guide groove 44 have prismatic cross-sections. In this structure, the connecting seat 41 has a cavity offset from the fifth connecting rod 321. After the output component 4 is connected and fixed to the planetary reduction assembly, the motor assembly 2 drives the gear ring 33 to rotate, causing the sun gear 31 to rotate the connecting seat 41, thereby causing the output shaft 43 to output power.

[0044] The connecting seat 41 is provided with an anti-slip component 45. When adjusting and changing the output mode, the motor assembly 2 should be disconnected from the power supply. This is to avoid safety accidents and to eliminate the electromagnetic field, allowing the motor rotor to rotate slightly under the influence of external forces. The user can manually rotate the connecting seat 41 through the anti-slip component 45 to make the planetary reduction assembly rotate slightly, which facilitates the connection of the third transmission disc 34 with the first transmission disc 331 or the second transmission disc 312.

[0045] The inner wall of the housing 1 is curved, and the locking tongue 113 is provided with an arc-shaped baffle 115 that can slide against the inner wall of the housing 1. The limiting window 5 allows communication between the inside and outside of the housing 1, and the arc-shaped baffle 115 can block the limiting window 5, thus sealing the housing 1 and preventing external dust, water stains, oil stains, etc. from entering the interior of the housing 1.

[0046] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this invention. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A planetary gear reducer structure with a changeable output mode, comprising a housing (1), characterized in that: The housing (1) contains a motor assembly (2), and also includes a planetary gear assembly (3) assembled inside the housing (1) and an output assembly (4) located outside the housing (1) and connected to the planetary gear assembly (3). The planetary gear assembly (3) is provided with a sun gear (31), a plurality of planet gears (32) meshing with the sun gear (31), and a gear ring (33) meshing with the planet gears (32). The gear ring (33) is movably connected to the housing (1). A first transmission disc (331) is provided at the bottom of the gear ring (33). A first connecting rod (311) is provided on the sun gear (31). A second transmission disc (312) is provided at the end of the first connecting rod (311). The first transmission disc (331) is... 1) A third transmission disk (34) is provided between the second transmission disk (312). The third transmission disk (34) is provided with a second connecting rod (341). The second connecting rod (341) passes through the first transmission disk (331) and is movably connected to the motor assembly (2). The end faces of the first transmission disk (331), the second transmission disk (312), and the third transmission disk (34) are all provided with interlocking concave and convex components (35). The housing (1) is also provided with an adjustment component (11) that can adjust the position of the third transmission disk (34). The adjustment component (11) can connect the third transmission disk (34) with the first transmission disk (331) or drive the third transmission disk (34) to connect with the second transmission disk (312). The planetary gear assembly (3) is provided with a limiting turntable (36) connected to the planetary gear (32), the sun gear (31) is provided with a third connecting (313) rod that passes through the limiting turntable (36), the limiting turntable (36) is provided with a first limiting groove (361), the housing (1) is provided with a positioning hole (12) and a first locking pin (13) that can pass through the positioning hole (12) and be inserted into the first limiting groove (361), the gear ring (33) is provided with a second limiting groove (332), and the housing (1) is provided with a second locking pin (14) that can be inserted into the second limiting groove (332).

2. The planetary reducer structure with a changeable output mode according to claim 1, characterized in that: The concave-convex component (35) is provided with a plurality of protruding teeth (351) that surround the end faces of the first transmission disk (331), the second transmission disk (312), and the third transmission disk (34) and are equidistantly arranged. There is a notch (352) between adjacent protruding teeth (351), and the notch (352) can perfectly accommodate the protruding teeth (351), so that the two opposing concave-convex components (35) can mesh with each other.

3. The planetary reducer structure with a changeable output mode according to claim 1, characterized in that: The housing (1) is provided with a limiting window (5), and the adjusting component (11) is provided with a bearing a (111) that is movably connected to the second connecting rod (341), a positioning collar (112) located outside the bearing a (111), and a locking tongue (113) that can slide within the limiting window (5).

4. The planetary reducer structure with a changeable output mode according to claim 3, characterized in that: The limiting window (5) is provided with an upper limiting port (51) and a lower limiting port (52). A first side groove (53) is provided on one side wall of the upper limiting port (51) and the lower limiting port (52). A second side groove (54) is provided on one side of the first side groove (53). A third locking pin (55) that can be inserted into the upper limiting port (51) or the lower limiting port (52) is provided in the first side groove (53). A fourth locking pin (56) that can be moved into the second side groove (54) is provided at one end of the third locking pin (55). The locking tongue (113) is provided with a locking hole (114) that can cooperate with the third locking pin (55).

5. The planetary reducer structure with a changeable output mode according to claim 1, characterized in that: The motor assembly (2) is provided with an input shaft (21), and a fourth connecting rod (22) is provided at the end of the input shaft (21). A first guide groove (342) is provided at the end of the second connecting rod (341) to engage with the fourth connecting rod (22). The fourth connecting rod (22) and the first guide groove (342) are rhomboid in cross-sectional shape.

6. The planetary reducer structure with a changeable output mode according to claim 1, characterized in that: A bearing b (333) is provided between the gear ring (33) and the housing (1).

7. The planetary reducer structure with a changeable output mode according to claim 1, characterized in that: The third connecting rod (313) is provided with an annular groove (314) for limiting connection with the limiting turntable (36). The limiting turntable (36) is provided with a rolling groove (362) at the corresponding position of the housing (1) and the corresponding position of the upper and lower side walls of the limiting turntable (36) and the annular groove (314). Multiple balls (363) are provided in the rolling groove (362).

8. The planetary reducer structure with a changeable output mode according to claim 1, characterized in that: The planetary gear (32) is provided with a fifth connecting rod (321) that passes through the limiting turntable (36), and a bearing c (322) is provided between the fifth connecting rod (321) and the limiting turntable (36).

9. The planetary reducer structure with a changeable output mode according to claim 8, characterized in that: The output component (4) is provided with a connector (41), the connector (41) is provided with a connector (42) that can be fitted with the fifth connecting rod (321), and the connector (41) is provided with an output shaft (43).

10. A planetary reducer structure with a changeable output mode according to any one of claims 1 to 9, characterized in that: A sixth connecting rod (315) extends from the third connecting rod (313), and the output component (4) is provided with a connecting seat (41). The connecting seat (41) is provided with a second guide groove (44) that can cooperate with the sixth connecting rod (315), and an output shaft (43) is provided on the connecting seat (41).

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