A rotary planetary gear reducer

Abstract

This invention discloses a rotary planetary reducer, relating to the technical field of rotary planetary reducers. Its key technical features include a reducer housing, an output flange mounted on the top of the housing, a hinge mounting flange mounted on the bottom of the housing, an output central shaft rotatably mounted on the inner side of the output flange, an output gear mounted on the upper outer wall of the output central shaft, a linkage shaft connected to the lower end of the output gear, a first reduction section mounted on the lower end of the output central shaft, and a second reduction section positioned below the first reduction section. The technical effect is achieved by incorporating an oil dispersion and pushing component. A sliding rod slides along a track formed by track one, track two, and a climbing track, enabling the inward and outward movement of the movable cover and the extended connecting sleeve, thereby pushing the internal oil flow, accelerating the uniformity of oil dispersion, improving the lubrication effect during meshing, and reducing the wear rate during meshing.

Description

Technical Field

[0001] This invention relates to the field of rotary planetary reducers, specifically a rotary planetary reducer. Background Technology

[0002] Rotary planetary gear reducers, as key equipment in the field of mechanical transmission, demonstrate superior performance thanks to their unique planetary gear transmission principle. Their compact structural design achieves high torque output and precise transmission within a limited space. They possess numerous advantages, including small size, light weight, high transmission efficiency, and stable precision, and can adapt to various complex working conditions. Whether in industrial automated production lines, robot joint drives, or high-end fields such as aerospace and precision instruments, rotary planetary gear reducers play an irreplaceable role, providing a solid guarantee for the efficient and stable operation of various equipment and driving modern industry towards higher precision and higher performance.

[0003] The current rotary planetary reducer suffers from excessive tooth wear due to insufficient lubrication between the planetary teeth, which is one of the common faults of rotary planetary reducers. Therefore, there is an urgent need for a rotary planetary reducer that can improve the oil dispersion state inside the reducer to solve the problem of rapid tooth wear. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a rotary planetary reducer. By improving the gears, the internal oil can be fully dispersed during operation, thereby improving the lubrication performance between the gears and solving the problem of excessive tooth wear.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rotary planetary reducer, comprising a reducer housing, an output flange mounted on the upper part of the reducer housing, a drive mounting flange mounted on the lower part of the reducer housing, an output central shaft rotatably mounted on the inner side of the output flange, an output gear mounted on the upper part of the outer wall of the output central shaft, a linkage shaft connected to the lower end of the output gear, a first reduction section mounted on the lower end of the output central shaft, and a second reduction section disposed below the first reduction section;

[0006] The first deceleration unit includes a secondary mounting bracket installed inside the reducer housing and located at the outer ring of the linkage shaft, and each end of the secondary mounting bracket is fixedly provided with a shaft.

[0007] The second reduction gear includes a second planetary gear rotatably mounted on the lower part of the outer wall of the shaft;

[0008] The second planetary gear is equipped with an oil dispersion and pushing component at its traveling end, and multiple sets of oil oscillation and dispersion components are provided at the oil dispersion and pushing component.

[0009] The oil dispersion driving component includes a movable cover plate slidably disposed at the second planetary gear. An extension connecting sleeve is connected to the inner ring of the movable cover plate. A sliding rod is rotatably installed on one side of the inner ring of the extension connecting sleeve. A ring is installed at one end of the shaft and at a position corresponding to the extension connecting sleeve. A first track is provided on one side of the lower outer wall of the ring, and a second track is provided on the other side of the upper outer wall of the first track. Climbing tracks are symmetrically provided on the outer wall of the ring for connecting the beginning and end of the first track and the second track.

[0010] Preferably, a first sun gear is installed at the lower end of the linkage shaft, an internal gear is provided on the inner ring of the secondary mounting bracket to cooperate with the first sun gear, a first planetary gear is rotatably installed on the outer wall of the shaft and on the inner side of the secondary mounting bracket, and a first internal gear ring is installed inside the reducer housing at a position corresponding to the first planetary gear.

[0011] Preferably, the first sun gear is meshed with both the internal gear and the first planetary gear, and the first planetary gear is meshed with the first internal gear ring.

[0012] Preferably, the second reduction section further includes a second sun gear installed at the lower end of the linkage shaft, and a second internal gear ring is installed inside the reducer housing at a position corresponding to the second planetary gear.

[0013] Preferably, the second sun gear meshes with the second planetary gear, and the second planetary gear meshes with the second internal gear ring.

[0014] Preferably, a connecting cover plate is provided between the first deceleration part and the second deceleration part, the shaft passes through the connecting cover plate, and the inner wall of the connecting cover plate is provided with internal teeth that cooperate with the second sun gear.

[0015] Preferably, there is a height difference between track one and track two, the climbing track is set at an angle, the sliding rod is used in conjunction with track one, track two and the climbing track, the sliding rod is slidably connected to the ring sleeve, and a movable cover plate is provided on one side of the second planetary gear for use with the movable cover plate, which is slidably connected to the second planetary gear.

[0016] Preferably, the oil oscillation dispersion component includes multiple arc-shaped grooves arrayed on one side of the movable cover plate. A linkage rod is rotatably mounted on the inner side of the arc-shaped grooves. An oscillating lever is mounted on one side of the outer wall of the linkage rod, and a friction roller is provided on the other side of the outer wall of the linkage rod. The outer wall of the friction roller is coated with a coating to increase friction, thereby improving the friction force at the contact point and ensuring the stability of sliding. A friction groove is provided on the inner side to cooperate with the friction roller. During the movement of the movable cover plate in and out, the friction roller slides back and forth along the friction groove. During the rotation of the movable cover plate, the oscillating lever also oscillates back and forth, thereby achieving supplementary dispersion of the internal oil, improving the oil dispersion effect, and further improving the lubrication effect during meshing.

[0017] Compared with the prior art, the present invention provides a rotary planetary reducer, which has the following beneficial effects:

[0018] 1. By setting up an oil dispersion and pushing component, the sliding rod slides along the track formed by track one, track two and the climbing track to realize the inward and outward movement of the movable cover plate and the extended connecting sleeve, thereby pushing the internal oil, accelerating the internal oil flow, improving the uniformity of oil dispersion, improving the lubrication effect during meshing, and reducing the wear rate during meshing.

[0019] 2. By setting up an oil oscillation dispersion component, during the movement of the movable cover plate in and out, the friction roller slides back and forth along the friction groove. During the rotation of the movable cover plate, the oscillating plate will also oscillate back and forth, thereby achieving supplementary dispersion of the internal oil, improving the oil dispersion effect, further improving the lubrication effect during meshing, and further reducing the wear rate during meshing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the present invention;

[0022] Figure 3 This is a partial structural diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the disassembled structure of the present invention;

[0024] Figure 5 This is a partial disassembly diagram of the present invention;

[0025] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;

[0026] Figure 7 This is a schematic diagram of the structure of the movable cover plate in this invention;

[0027] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B in the middle.

[0028] In the diagram: 1. Gearbox housing; 11. Output flange; 12. Click to install flange;

[0029] 2. Output center shaft; 21. Output gear; 22. Linkage shaft;

[0030] 3. First reduction gear; 31. First sun gear; 32. Second stage mounting bracket; 33. Internal gear 1; 34. Shaft; 35. First planetary gear; 36. First internal gear ring;

[0031] 4. Second reduction gear; 41. Second planetary gear; 42. Second internal gear ring; 43. Second sun gear;

[0032] 5. Movable cover plate; 51. Extension connecting sleeve; 52. Sliding rod; 53. Ring sleeve; 54. Rail one; 55. Rail two; 56. Inclined rail;

[0033] 6. Arc-shaped groove; 61. Linkage rod; 62. Swinging lever; 63. Friction roller; 64. Friction groove. Detailed Implementation

[0034] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0035] Please see Figure 1-8 This invention provides a technical solution for a rotary planetary reducer:

[0036] Example 1: A rotary planetary reducer includes a reducer housing 1, an output flange 11 mounted on the top of the reducer housing 1, a drive flange 12 mounted on the bottom of the reducer housing 1, an output central shaft 2 rotatably mounted on the inner side of the output flange 11, an output gear 21 mounted on the top of the outer wall of the output central shaft 2, a linkage shaft 22 connected to the lower end of the output gear 21, a first reduction section 3 mounted on the lower end of the output central shaft 2, and a second reduction section 4 disposed below the first reduction section 3.

[0037] The first reduction section 3 includes a secondary mounting bracket 32 ​​installed inside the reducer housing 1 and located at the outer ring of the linkage shaft 22. Each end of the secondary mounting bracket 32 ​​is fixedly provided with a shaft 34.

[0038] The second reduction unit 4 includes a second planetary gear 41 that is rotatably mounted on the lower part of the outer wall of the shaft 34;

[0039] The second planetary gear 41 is equipped with an oil dispersion and pushing component at its traveling end, and multiple sets of oil swing dispersion components are provided at the oil dispersion and pushing component.

[0040] The oil dispersion driving component includes a movable cover plate 5 that is slidably disposed at the second planetary gear 41. An extension connecting sleeve 51 is connected to the inner ring of the movable cover plate 5. A sliding rod 52 is rotatably mounted on one side of the inner ring of the extension connecting sleeve 51. A ring sleeve 53 is installed at one end of the shaft 34, corresponding to the extension connecting sleeve 51. A first track 54 is provided on one side of the lower outer wall of the ring sleeve 53, and a second track 55 is provided on the other side of the upper outer wall of the first track 54. Climbing tracks 56 are symmetrically provided on the outer wall of the ring sleeve 53 to connect the first track 54 and the second track 55 end to end. A first sun gear 31 is installed at the lower end of the linkage shaft 22, and a secondary mounting bracket 32 ​​is also provided. The inner ring of the gear 32 is provided with an internal gear 33 that cooperates with the first sun gear 31. The outer wall of the shaft 34 and the inner side of the secondary mounting bracket 32 ​​are rotatably mounted with a first planetary gear 35. The inside of the gearbox housing 1 and the position corresponding to the first planetary gear 35 are installed with a first internal gear ring 36. The lower end of the linkage shaft 22 is equipped with a first sun gear 31. The inner ring of the secondary mounting bracket 32 ​​is provided with an internal gear 33 that cooperates with the first sun gear 31. The outer wall of the shaft 34 and the inner side of the secondary mounting bracket 32 ​​are rotatably mounted with a first planetary gear 35. The inside of the gearbox housing 1 and the position corresponding to the first planetary gear 35 are installed with a first internal gear ring 36.

[0041] The second reduction unit 4 also includes a second sun gear 43 installed at the lower end of the linkage shaft 22, and a second internal gear ring 42 installed inside the reducer housing 1 at a position corresponding to the second planetary gear 41. The second sun gear 43 is meshed with the second planetary gear 41, the second planetary gear 41 is meshed with the second internal gear ring 42, the second sun gear 43 is meshed with the second planetary gear 41, and the second planetary gear 41 is meshed with the second internal gear ring 42.

[0042] There is a height difference between track 1 54 and track 2 55. The climbing track 56 is set at an angle. The sliding rod 52 is used in conjunction with track 1 54, track 2 55 and climbing track 56. The sliding rod 52 is slidably connected to the ring sleeve 53. A 57 is opened on one side of the second planetary gear 41 to cooperate with the movable cover plate 5. The movable cover plate 5 is slidably connected to the second planetary gear 41. By using the sliding rod 52 to slide along the track formed by track 1 54, track 2 55 and climbing track 56, the movable cover plate 5 and the extended connecting sleeve 51 can be moved inward and outward to push the internal oil, thereby accelerating the internal oil flow, improving the uniformity of oil dispersion and improving the lubrication effect during meshing.

[0043] In Example 2, the oil oscillation dispersion component includes multiple arc-shaped grooves 6 arrayed on one side of the movable cover plate 5. A linkage rod 61 is rotatably mounted on the inner side of the arc-shaped grooves 6. An oscillating deflector 62 is mounted on one side of the outer wall of the linkage rod 61. A friction roller 63 is provided on the other side of the outer wall of the linkage rod 61. The outer wall of the friction roller 63 is coated with a coating to increase friction, thereby improving the friction at the contact point and ensuring the stability of sliding. A friction groove 64 is provided on the inner side of 57 to cooperate with the friction roller 63. During the inward and outward movement of the movable cover plate 5, the friction roller 63 slides back and forth along the friction groove 64. During the rotation of the movable cover plate 5, the oscillating deflector 62 also oscillates back and forth, thereby achieving supplementary dispersion of the internal oil, improving the oil dispersion effect, and further improving the lubrication effect during meshing.

[0044] In practical use, this invention serves as a rotary planetary reducer. The oil oscillation dispersion component includes multiple arc-shaped grooves 6 arrayed on one side of the movable cover plate 5. A linkage rod 61 is rotatably mounted on the inner side of the arc-shaped grooves 6. An oscillating deflector 62 is mounted on one side of the outer wall of the linkage rod 61. A friction roller 63 is provided on the other side of the outer wall of the linkage rod 61. The outer wall of the friction roller 63 is coated with a coating to increase friction, thereby enhancing the friction force at the contact point and ensuring the stability of sliding. A friction groove 64 is provided on the inner side of 57 to cooperate with the friction roller 63. During the inward and outward movement of the movable cover plate 5, the friction roller 63 slides back and forth along the friction groove 64. During the rotation of the movable cover plate 5, the oscillating deflector 62 also oscillates back and forth, thereby achieving supplementary dispersion of the internal oil, improving the oil dispersion effect, and further enhancing the lubrication effect during meshing.

[0045] It should be added that the working principles of the first and second stage planetary deceleration of this invention, as well as the output principle, are conventional working methods in the field, and will not be further elaborated in this application.

[0046] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A rotary planetary reducer, comprising a reducer housing (1), an output flange (11) mounted on the upper part of the reducer housing (1), an output central shaft (2) rotatably mounted on the inner side of the output flange (11), an output gear (21) mounted on the upper part of the outer wall of the output central shaft (2), and a linkage shaft (22) connected to the lower end of the output gear (21), characterized in that: The lower end of the output center shaft (2) is equipped with a first deceleration part (3), and a second deceleration part (4) is provided below the first deceleration part (3). The first deceleration unit (3) includes a secondary mounting bracket (32) installed inside the reducer housing (1) and located at the outer ring of the linkage shaft (22). The ends of the secondary mounting bracket (32) are all fixedly provided with shafts (34). The second reduction section (4) includes a second planetary gear (41) rotatably mounted below the outer wall of the shaft (34); The second planetary gear (41) is equipped with an oil dispersion and pushing component at its walking end, and multiple sets of oil swing dispersion components are provided at the oil dispersion and pushing component. The oil dispersion pushing component includes a movable cover plate (5) slidably disposed at the second planetary gear (41). An extension connecting sleeve (51) is connected to the inner ring of the movable cover plate (5). A sliding rod (52) is rotatably installed on one side of the inner ring of the extension connecting sleeve (51). A ring sleeve (53) is installed at one end of the shaft (34) and at the position corresponding to the extension connecting sleeve (51). A track one (54) is opened on one side below the outer wall of the ring sleeve (53). A track two (55) is opened on the other side above the outer wall of the track one (54). A climbing track (56) is symmetrically opened on the outer wall of the ring sleeve (53) for connecting the head and tail of the track one (54) and the track two (55). By using the sliding rod (52) to slide along the track formed by track one (54), track two (55) and the climbing track (56), the movable cover plate (5) and the extended connecting sleeve (51) can be moved inward and outward to push the internal oil, thereby accelerating the internal oil flow, improving the uniformity of oil dispersion, and improving the lubrication effect during meshing.

2. The rotary planetary reducer according to claim 1, characterized in that: The lower end of the linkage shaft (22) is equipped with a first sun gear (31), the inner ring of the secondary mounting bracket (32) is provided with an internal gear (33) that works with the first sun gear (31), the outer wall of the shaft (34) and the inner side of the secondary mounting bracket (32) are rotatably mounted with a first planetary gear (35), and the inside of the reducer housing (1) and the corresponding position of the first planetary gear (35) are equipped with a first internal gear ring (36).

3. A rotary planetary reducer according to claim 2, characterized in that: The first sun gear (31) is meshed with the internal gear (33) and the first planetary gear (35), and the first planetary gear (35) is meshed with the first internal gear ring (36).

4. A rotary planetary reducer according to claim 1, characterized in that: The second reduction unit (4) also includes a second sun gear (43) installed at the lower end of the linkage shaft (22), and a second internal gear ring (42) is installed inside the reducer housing (1) at a position corresponding to the second planetary gear (41).

5. A rotary planetary reducer according to claim 4, characterized in that: The second sun gear (43) is meshed with the second planetary gear (41), and the second planetary gear (41) is meshed with the second internal gear ring (42).

6. A rotary planetary reducer according to claim 4, characterized in that: A connecting cover plate is provided between the first deceleration part (3) and the second deceleration part (4), and the shaft (34) passes through the connecting cover plate. The inner wall of the connecting cover plate is provided with internal teeth that cooperate with the second sun gear (43).

7. A rotary planetary reducer according to claim 1, characterized in that: There is a height difference between the first track (54) and the second track (55), the climbing track (56) is set at an angle, the sliding rod (52) is used in conjunction with the first track (54), the second track (55) and the climbing track (56), and the sliding rod (52) is slidably connected to the ring (53).

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