Planet carrier assembly of high-precision long-service-life structure

Abstract

The utility model discloses a planet carrier assembly of a high-precision long-service-life structure, and belongs to the technical field of planet carriers, the planet carrier assembly comprises a planet carrier base and a planet carrier top cover, an adjusting groove is formed in the planet carrier base, and a moving groove is formed in the position, above the adjusting groove, of the upper surface of the planet carrier base; a fixing block is fixedly mounted in the adjusting groove, and a reciprocating lead screw is rotationally connected to the position, located on one side of the fixing block, in the adjusting groove; the rotary cap is rotated to drive the reciprocating screw rod to synchronously rotate, so that the fixed block is conveniently driven to slide in the adjusting groove, the planetary gear mounting shaft can be driven to slide in the moving groove, the position of the planetary gear can be adjusted, the planetary gear can be conveniently engaged with sun gears of different sizes, and the sun gears can be conveniently adjusted. And the planet carrier composition structure made of the magnesium-aluminum alloy material has the characteristics of light weight and high strength, and is not easy to damage and long in service life.

Description

Technical Field

[0001] This application relates to the field of planetary carrier technology, and in particular to a planetary carrier assembly with a high-precision and long-life structure. Background Technology

[0002] Planetary gears are gear systems that, in addition to rotating around their own axes like fixed-axis gears, also have their axes of rotation revolving around the axes of other gears along with the planet carrier. The sun gear is located at the center, and the planet gears mesh around it. The sun gear's rotation around its own axis is called "rotation," and its rotation around the axes of other gears is called "revolution," just like the planets in the solar system, hence the name. The planet carrier is one of the main components of a planetary gear transmission.

[0003] Most existing planetary carriers are one-piece structures, which often result in the planetary gears on the planetary shaft not meshing with the sun gear, and the distance between the planetary gears and the sun gear cannot be adjusted, leading to low gear operating accuracy. Therefore, an improvement has been made to a planetary carrier assembly with a high-precision and long-life structure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a high-precision, long-life planetary carrier assembly that overcomes the deficiencies of existing technologies. It aims to solve the problem that most existing planetary carriers are one-piece structures, where the planetary gears mounted on the planetary shaft cannot mesh with the sun gear, and the distance between the planetary gears and the sun gear cannot be adjusted, resulting in low gear operating accuracy.

[0005] To achieve the above objectives, this application provides the following technical solution: a planetary carrier assembly with a high-precision and long-life structure, comprising a planetary carrier base and a planetary carrier top cover. An adjustment groove is provided inside the planetary carrier base, and a moving groove is provided on the upper surface of the planetary carrier base above the adjustment groove. A fixing block is fixedly installed inside the adjustment groove. A reciprocating screw is rotatably connected to one side of the fixing block inside the adjustment groove. One end of the reciprocating screw passes through the fixing block and is fixedly connected to a rotating cap. A moving block is threaded onto the outer surface of the reciprocating screw. A planetary gear mounting shaft is fixedly connected to the top of the moving block. The planetary gear mounting shaft slides inside the moving groove, and a planetary gear is rotatably sleeved on the outer surface of the planetary gear mounting shaft.

[0006] By adopting the above technical solution, the staff can use professional tools to rotate the rotating cap to drive the reciprocating screw to rotate synchronously, so as to drive the fixed block to slide inside the adjustment groove, thereby driving the planetary gear mounting shaft to slide inside the moving groove. This allows the position of the planetary gear to be adjusted, making it convenient for the planetary gear to mesh with sun gears of different sizes, ensuring the gear's operating accuracy.

[0007] As a preferred technical solution of this application, the number of the adjusting groove, the moving groove, the fixing block, the rotating cap, the reciprocating screw, the moving block and the planetary gear mounting shaft are all three and correspond one-to-one. The three adjusting grooves, moving grooves, fixing blocks, rotating caps, reciprocating screws, moving blocks and planetary gear mounting shafts are arranged in a circular array about the central axis of the planetary carrier base.

[0008] By adopting the above technical solution, the three planetary gears are made relatively independent and in symmetrical positions, making the gear operation more balanced and stable.

[0009] As a preferred technical solution of this application, the external dimensions of the movable block are adapted to the inner diameter of the adjusting groove, and the external diameter of the planetary gear mounting shaft is adapted to the inner diameter of the movable groove.

[0010] By adopting the above technical solution, the movement trajectory of the moving block and the planetary gear mounting shaft is limited, so that the moving block and the planetary gear mounting shaft will not shift position during movement.

[0011] As a preferred technical solution of this application, a rotating hole is provided through the center of the upper surface of the planetary carrier top cover, and a bearing seat is provided inside the rotating hole.

[0012] By adopting the above technical solution, the output shaft of the sun gear is allowed to pass through by setting a rotating hole and bearing housing, so as to realize the rotational motion of the planetary gear system.

[0013] As a preferred technical solution of this application, the upper surface of the planetary carrier base is fixedly connected to a connecting base between any two of the moving slots. A connecting cylinder is fixedly connected to the top of the connecting base. A connecting rod is slidably inserted into the inside of the connecting cylinder. The connecting rod is fixedly installed at the bottom of the planetary carrier top cover. The inner wall of the connecting cylinder is symmetrically provided with positioning slots. The outer wall of the connecting rod is symmetrically provided with positioning strips that are adapted to the positioning slots.

[0014] By adopting the above technical solution, positioning grooves and positioning strips are set to achieve positioning, making it easy for the connecting rod to be accurately inserted into the inside of the connecting cylinder, so as to facilitate the assembly of the planetary carrier base and the planetary carrier top cover.

[0015] As a preferred technical solution of this application, a limiting hole is formed through the interior of the connecting rod near the lower end, a leveling ring is fixedly installed on the outer wall of the connecting cylinder, a fixing bolt is threadedly connected to the interior of the leveling ring, one end of the fixing bolt passes through the limiting hole and is threadedly connected to the fixing nut, and the fixing bolt is adapted to the limiting hole.

[0016] By adopting the above technical solution, the connecting rod is fixed inside the connecting cylinder by the cooperation between the fixing bolt, fixing nut and limiting hole, thereby realizing the installation or disassembly of the planetary carrier base and the planetary carrier top cover, so as to facilitate the disassembly and maintenance of the planetary gear.

[0017] As a preferred technical solution of this application, the planetary carrier base, planetary carrier top cover, connecting base, connecting cylinder and connecting rod are all made of magnesium-aluminum alloy material.

[0018] By adopting the above technical solution, the magnesium-aluminum alloy material includes aluminum, manganese, zinc, beryllium, silicon, copper, nickel, iron, etc., with magnesium as the balance. The planetary carrier base, planetary carrier top cover, connecting base, connecting cylinder and connecting rod made of this material have the characteristics of being lightweight, high-strength, not easy to be damaged, and having a long service life.

[0019] The beneficial effects of this application are:

[0020] In this invention, workers use specialized tools to rotate the rotating cap, which drives the reciprocating screw to rotate synchronously. This allows the fixed block to slide inside the adjusting groove, thereby enabling the planetary gear mounting shaft to slide inside the moving groove. This allows for adjustment of the planetary gear position, facilitating meshing between the planetary gear and sun gears of different sizes, ensuring gear operation accuracy. The planetary carrier structure, made of magnesium-aluminum alloy, is lightweight, high-strength, durable, and has a long service life.

[0021] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereto. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this application;

[0023] Figure 2 This is a schematic diagram of the external structure of the planetary carrier base of this application;

[0024] Figure 3 This is a schematic diagram of the internal structure of the planetary carrier base of this application;

[0025] Figure 4 This is a partial structural breakdown diagram of this application.

[0026] In the diagram: 1. Planetary carrier base; 2. Planetary carrier top cover; 3. Rotation hole; 4. Bearing seat; 5. Adjustment groove; 6. Fixing block; 7. Reciprocating screw; 8. Rotating cap; 9. Moving block; 10. Planetary gear mounting shaft; 11. Moving groove; 12. Planetary gear; 13. Connecting base; 14. Connecting cylinder; 15. Leveling ring; 16. Fixing bolt; 17. Fixing nut; 18. Positioning groove; 19. Connecting rod; 20. Positioning strip; 21. Limiting hole. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] like Figure 1 - Figure 4 As shown, this embodiment provides a high-precision, long-life planetary carrier assembly, including a planetary carrier base 1 and a planetary carrier top cover 2. An adjustment groove 5 is provided inside the planetary carrier base 1, and a moving groove 11 is provided on the upper surface of the planetary carrier base 1 above the adjustment groove 5. A fixing block 6 is fixedly installed inside the adjustment groove 5. A reciprocating screw 7 is rotatably connected to one side of the fixing block 6 inside the adjustment groove 5. One end of the reciprocating screw 7 passes through the fixing block 6 and is fixedly connected to a rotating cap 8. A moving block 9 is threadedly connected to the outer surface of the reciprocating screw 7, and a sliding block 9 is fixedly connected to the top of the moving block 9. The planetary gear mounting shaft 10 slides inside the moving groove 11. The outer surface of the planetary gear mounting shaft 10 is rotatably fitted with a planetary gear 12. During use, the operator uses a professional tool to rotate the rotating cap 8 to drive the reciprocating screw 7 to rotate synchronously, so as to drive the fixed block 6 to slide inside the adjusting groove 5. This allows the planetary gear mounting shaft 10 to slide inside the moving groove 11, thereby adjusting the position of the planetary gear 12. This facilitates the engagement of the planetary gear 12 with sun gears of different sizes, ensuring the gear's operational accuracy.

[0029] In this embodiment, as Figure 2 and 3 As shown, there are three of each of the following: adjustment groove 5, moving groove 11, fixed block 6, rotating cap 8, reciprocating screw 7, moving block 9, and planetary gear mounting shaft 10. They are arranged in a circular array about the central axis of the planetary carrier base 1. In use, this makes the three planetary gears 12 relatively independent and in symmetrical positions, making the gear operation more balanced and stable.

[0030] In this embodiment, as Figure 2 and 3 As shown, the outer dimensions of the movable block 9 are adapted to the inner diameter of the adjusting groove 5, and the outer diameter of the planetary gear mounting shaft 10 is adapted to the inner diameter of the movable groove 11. During use, the movement trajectory of the movable block 9 and the planetary gear mounting shaft 10 is limited so that the movable block 9 and the planetary gear mounting shaft 10 will not shift position during movement.

[0031] In this embodiment, as Figure 1 As shown, a rotating hole 3 is provided in the center of the upper surface of the planetary carrier top cover 2. A bearing seat 4 is provided inside the rotating hole 3. In use, the output shaft of the sun gear is allowed to pass through by the rotating hole 3 and the bearing seat 4 to realize the rotational movement of the planetary gear system.

[0032] In this embodiment, as Figure 4 As shown, a connecting base 13 is fixedly connected to the upper surface of the planetary carrier base 1 between any two moving slots 11. A connecting cylinder 14 is fixedly connected to the top of the connecting base 13. A connecting rod 19 is slidably inserted into the inside of the connecting cylinder 14. The connecting rod 19 is fixedly installed at the bottom of the planetary carrier top cover 2. The inner wall of the connecting cylinder 14 is symmetrically provided with positioning slots 18. The outer wall of the connecting rod 19 is symmetrically provided with positioning strips 20 that are compatible with the positioning slots 18. In use, the positioning slots 18 and positioning strips 20 are used to position the connecting rod 19 so that it can be accurately inserted into the inside of the connecting cylinder 14, thereby facilitating the assembly of the planetary carrier base 1 and the planetary carrier top cover 2.

[0033] In this embodiment, as Figure 4 As shown, a limiting hole 21 is provided through the interior of the connecting rod 19 near its lower end. A leveling ring 15 is fixedly installed on the outer wall of the connecting cylinder 14. A fixing bolt 16 is threadedly connected inside the leveling ring 15. One end of the fixing bolt 16 passes through the limiting hole 21 and is threadedly connected to the fixing nut 17. The fixing bolt 16 is adapted to the limiting hole 21. In use, the connecting rod 19 is limited and fixed inside the connecting cylinder 14 by the cooperation between the fixing bolt 16, the fixing nut 17 and the limiting hole 21, thereby realizing the installation or disassembly of the planetary carrier base 1 and the planetary carrier top cover 2, so as to facilitate the disassembly and maintenance of the planetary gear 12.

[0034] In this embodiment, as Figure 1 and 4As shown, the planetary carrier base 1, planetary carrier top cover 2, connecting base 13, connecting cylinder 14, and connecting rod 19 are all made of magnesium-aluminum alloy. When in use, the magnesium-aluminum alloy material includes aluminum, manganese, zinc, beryllium, silicon, copper, nickel, iron, etc., with the balance being magnesium. The planetary carrier base 1, planetary carrier top cover 2, connecting base 13, connecting cylinder 14, and connecting rod 19 made of this material have the characteristics of being lightweight, high-strength, not easily damaged, and having a long service life.

[0035] Working principle: When using the high-precision, long-life planetary carrier assembly of this application, the operator uses a professional tool to rotate the rotating cap 8 to drive the reciprocating screw 7 to rotate synchronously, so as to drive the fixed block 6 to slide inside the adjusting groove 5, thereby driving the planetary gear mounting shaft 10 to slide inside the moving groove 11. This allows the position of the planetary gear 12 to be adjusted, facilitating the meshing of the planetary gear 12 with sun gears of different sizes and ensuring the gear's operating accuracy. The positioning groove 18 and positioning strip 20 are used for positioning, facilitating the precise insertion of the connecting rod 19 into the connecting cylinder 14. The connecting rod 19 is fixed inside the connecting cylinder 14 by the cooperation of the fixing bolt 16, fixing nut 17 and limiting hole 21, thereby realizing the installation or disassembly of the planetary carrier base 1 and the planetary carrier top cover 2, so as to facilitate the disassembly and maintenance of the planetary gear 12. The planetary carrier structure, made of magnesium-aluminum alloy, is lightweight, high-strength, not easily damaged, and has a long service life.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-precision, long-life planetary carrier assembly, comprising a planetary carrier base (1) and a planetary carrier top cover (2), characterized in that, The planetary carrier base (1) has an adjustment groove (5) inside. The upper surface of the planetary carrier base (1) above the adjustment groove (5) has a moving groove (11). A fixing block (6) is fixedly installed inside the adjustment groove (5). A reciprocating screw (7) is rotatably connected to one side of the fixing block (6) inside the adjustment groove (5). One end of the reciprocating screw (7) passes through the fixing block (6) and is fixedly connected to a rotating cap (8). A moving block (9) is threadedly connected to the outer surface of the reciprocating screw (7). A planetary gear mounting shaft (10) is fixedly connected to the top of the moving block (9). The planetary gear mounting shaft (10) slides inside the moving groove (11). A planetary gear (12) is rotatably sleeved on the outer surface of the planetary gear mounting shaft (10).

2. The planetary carrier assembly with high precision and long life structure according to claim 1, characterized in that, The number of each of the adjustment groove (5), moving groove (11), fixing block (6), rotating cap (8), reciprocating screw (7), moving block (9) and planetary gear mounting shaft (10) is three and they correspond one-to-one. The three adjustment grooves (5), moving grooves (11), fixing blocks (6), rotating caps (8), reciprocating screws (7), moving blocks (9) and planetary gear mounting shafts (10) are arranged in a circular array about the central axis of the planetary carrier base (1).

3. The planetary carrier assembly with high precision and long life structure according to claim 1, characterized in that, The outer dimensions of the movable block (9) are adapted to the inner diameter of the adjusting groove (5), and the outer diameter of the planetary gear mounting shaft (10) is adapted to the inner diameter of the movable groove (11).

4. The planetary carrier assembly with high precision and long life structure according to claim 1, characterized in that, A rotating hole (3) is provided in the center of the upper surface of the planetary carrier top cover (2), and a bearing seat (4) is provided inside the rotating hole (3).

5. The planetary carrier assembly with high precision and long lifespan according to claim 2, characterized in that, The upper surface of the planetary carrier base (1) is fixedly connected to a connecting base (13) between any two of the moving slots (11). A connecting cylinder (14) is fixedly connected to the top of the connecting base (13). A connecting rod (19) is slidably inserted into the inside of the connecting cylinder (14). The connecting rod (19) is fixedly installed at the bottom of the planetary carrier top cover (2). A positioning groove (18) is symmetrically opened on the inner wall of the connecting cylinder (14). A positioning strip (20) that matches the positioning groove (18) is symmetrically installed on the outer wall of the connecting rod (19).

6. The planetary carrier assembly with high precision and long life structure according to claim 5, characterized in that, A limiting hole (21) is provided inside the connecting rod (19) near the lower end. A leveling ring (15) is fixedly installed on the outer wall of the connecting cylinder (14). A fixing bolt (16) is threaded inside the leveling ring (15). One end of the fixing bolt (16) passes through the limiting hole (21) and is threadedly connected to the fixing nut (17). The fixing bolt (16) is compatible with the limiting hole (21).

7. The planetary carrier assembly with high precision and long life structure according to claim 5, characterized in that, The planetary carrier base (1), planetary carrier top cover (2), connecting base (13), connecting cylinder (14) and connecting rod (19) are all made of magnesium-aluminum alloy.

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