Stable supporting structure for planetary gear set of speed reducer

Abstract

The utility model relates to the technical field of speed reducers, and discloses a speed reducer planetary gear set stable supporting structure which comprises a supporting sleeve, a movable disc is connected into the supporting sleeve in a sliding mode, side plates are fixedly connected to the upper outer wall and the lower outer wall of the movable disc, and fixing boxes are connected to the outer walls of the side plates in a sliding mode. A screw rod is rotationally connected into the fixing box, a screwing column is fixedly connected to the outer wall of the screw rod, the outer wall of the screw rod is in threaded connection to the outer wall of the side plate, and a fixing frame is fixedly connected to the outer wall of the moving disc. According to the planet carrier clamping device, the screwing column is rotated, the screwing column drives the lead screw to rotate in the fixing box, the side plate is made to move through threaded connection, the side plate synchronously drives the movable disc to move, the movable disc pushes the transmission rod through the fixing frame, the transmission rod drives the limiting disc to get close to the center of the positioning disc through the supporting block, and the planet carrier is clamped through the clamping block. The effects of ensuring the meshing precision between the planetary gear and the sun gear and the gear ring and improving the transmission stability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, and in particular to a stable support structure for planetary gear sets in speed reducers. Background Technology

[0002] In the wave of rapid development of modern industry, speed reducers, as key transmission equipment, are widely used in many fields such as machinery manufacturing, automobiles, aerospace, and robotics. Planetary gear sets stand out due to their unique structural advantages, bearing the core responsibility of speed reduction and torque increase. As the requirements of various equipment for power transmission accuracy, efficiency, and stability continue to rise, the stable support structure of planetary gear sets becomes increasingly critical. It needs to cope with complex and ever-changing working conditions, from the challenges of centrifugal force during high-speed operation to the high-intensity loads under heavy-duty operations. It must stably support the planetary gears, ensuring precise meshing of each gear, and building a solid foundation for smooth and stable power conversion. It is an indispensable link in ensuring the reliable operation of the speed reducer and even the entire mechanical equipment. Traditional support structures connect the planetary carrier to the support structure using bolts, pins, etc.

[0003] However, with current technology, it is difficult to flexibly position and clamp the planetary carrier, which can cause radial and axial displacement deviations in the planetary gears during operation, affecting transmission stability. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a stable support structure for planetary gear sets in speed reducers, aiming to solve the problem of difficulty in flexibly positioning and clamping the planetary carrier, which affects the stability of planetary gear transmission.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A stable support structure for a planetary gear set of a speed reducer includes a support sleeve. A movable disc is slidably connected inside the support sleeve. Side plates are fixedly connected to the upper and lower outer walls of the movable disc. A fixed box is slidably connected to the outer wall of the side plates. A lead screw is rotatably connected inside the fixed box. A screw rod is fixedly connected to the outer wall of the lead screw. The outer wall of the lead screw is threaded to the outer wall of the side plates. A fixed frame is fixedly connected to the outer wall of the movable disc. A transmission rod is rotatably connected to the inner wall of the fixed frame. A support block is rotatably connected to the inner wall of the transmission rod. A limit plate is fixedly connected to the outer wall of the support block. A sliding column is fixedly connected to the outer wall of the limit plate. A positioning plate is fixedly connected to the inner wall of the support sleeve. The outer wall of the sliding column is slidably connected to the inner wall of the positioning plate. A clamping block is fixedly connected to the outer wall of the sliding column. A planetary carrier is provided on the inner wall of the clamping block. A planetary transmission mechanism is provided on the inner wall of the planetary carrier. The planetary transmission mechanism is used to reduce the output speed of the speed reducer.

[0007] Preferably, the planetary transmission mechanism includes a bearing, the outer wall of which is rotatably connected to the inner wall of the planet carrier, and a main shaft is rotatably connected inside the planet carrier, the outer wall of which is fixed to the sun gear inside the planet carrier.

[0008] Preferably, the outer wall of the support sleeve is provided with a cover, the outer wall of the main shaft is provided on the inner wall of the cover, and an installation block is fixedly connected to the outer wall of the cover.

[0009] Preferably, a support plate is fixedly connected to both outer walls of the support sleeve, a limit frame is fixedly connected to the outer wall of the support plate, and a guide plate is slidably connected to the inner wall of the limit frame.

[0010] Preferably, a first spring is fixedly connected to one outer wall of the guide plate, and the outer wall of the first spring is fixedly connected to the inner wall of the limiting frame. A support column is fixedly connected to the other outer wall of the guide plate, and an inclined block is fixedly connected to the outer wall of the support column. The outer wall of the inclined block is disposed on the inner wall of the mounting block.

[0011] Preferably, a handle is fixedly connected to the outer wall of the guide plate, and the outer wall of the handle is slidably connected to the inner wall of the limiting frame.

[0012] Preferably, a movable column is slidably connected inside the support plate, and a push plate is fixedly connected to the outer wall of the movable column.

[0013] Preferably, one side of the outer wall of the push plate is disposed on the outer wall of the mounting block, and a second spring is fixedly connected to the other side of the outer wall of the push plate, and the outer wall of the second spring is fixedly connected to the inner wall of the support plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, rotating the screw column causes the lead screw to rotate within the fixed box. The side plate moves via the threaded connection, and the side plate synchronously moves the moving disk. The moving disk pushes the transmission rod via the fixed frame. The transmission rod drives the limiting disk toward the center of the positioning disk via the support block. The planetary carrier is clamped by the clamping block to ensure the meshing accuracy between the planetary gears and the sun gear and the ring gear, thereby improving the transmission stability.

[0016] 2. In this utility model, pulling the handles at both ends of the support sleeve outward causes the handles to drive the support column to move synchronously via the guide plate, so that the inclined block is separated from the inner wall of the mounting block. At this time, the second spring rebounds and pushes the push plate to slide outward on the inner wall of the support plate, thereby enabling the cover to be removed from the outer wall of the support sleeve. This facilitates the installation and replacement of the planetary carrier and improves the flexibility and protection of the mechanism. Attached Figure Description

[0017] Figure 1 This is a perspective view of the stable support structure for the planetary gear set of the reducer proposed in this utility model;

[0018] Figure 2 This is a partial structural diagram of the moving disk of the planetary gear set stabilization support structure for the reducer proposed in this utility model;

[0019] Figure 3 This is a partial structural diagram of the clamping block of the planetary gear set stabilization support structure for the reducer proposed in this utility model;

[0020] Figure 4 This is a partial structural diagram of the mounting block of the planetary gear set stabilization support structure for the reducer proposed in this utility model.

[0021] Legend:

[0022] 1. Support sleeve; 2. Moving plate; 3. Side plate; 4. Fixing box; 5. Tightening column; 6. Lead screw; 7. Planetary carrier; 8. Fixing frame; 9. Transmission rod; 10. Limiting plate; 11. Sliding column; 12. Positioning plate; 13. Clamping block; 14. Main shaft; 15. Support block; 16. Bearing; 17. Cover; 18. Mounting block; 19. Support plate; 20. Limiting frame; 21. Guide plate; 22. First spring; 23. Support column; 24. Inclined block; 25. Moving column; 26. Push plate; 27. Second spring; 28. Handle. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Reference Figures 1-3This utility model provides an embodiment of a planetary gear set stabilizing support structure for a speed reducer, comprising a support sleeve 1, a movable disk 2 slidably connected inside the support sleeve 1, side plates 3 fixedly connected to the upper and lower outer walls of the movable disk 2, a fixed box 4 slidably connected to the outer wall of the side plates 3, a lead screw 6 rotatably connected inside the fixed box 4, a screw rod 5 fixedly connected to the outer wall of the lead screw 6, the outer wall of the lead screw 6 being threadedly connected to the outer wall of the side plates 3, and a fixed frame 8 fixedly connected to the outer wall of the movable disk 2, the inner wall of the fixed frame 8 being rotatably connected to... There is a transmission rod 9, and a support block 15 is rotatably connected to the inner wall of the transmission rod 9. A limit plate 10 is fixedly connected to the outer wall of the support block 15. A sliding column 11 is fixedly connected to the outer wall of the limit plate 10. A positioning plate 12 is fixedly connected to the inner wall of the support sleeve 1. The outer wall of the sliding column 11 is slidably connected to the inner wall of the positioning plate 12. A clamping block 13 is fixedly connected to the outer wall of the sliding column 11. A planetary carrier 7 is provided on the inner wall of the clamping block 13. A planetary transmission mechanism is provided on the inner wall of the planetary carrier 7. The planetary transmission mechanism is used to reduce the output of the reducer.

[0025] Specifically, the support sleeve 1 can support the sliding position of the movable disk 2, and the movable disk 2 has a fixed support function for the side plate 3. The fixed box 4 can support the sliding position of the side plate 3, and thus the side plate 3 can limit the movement position of the movable disk 2. At the same time, the fixed box 4 can support the rotation position of the lead screw 6. By rotating the screw rod 5, the lead screw 6 can be driven to rotate. The lead screw 6 then drives the side plate 3 to move through the reverse force generated by the threaded connection with the side plate 3. Thus, the side plate 3 drives the movable disk 2 to move. The movable disk 2 has a fixed support function for the fixed frame 8, and the fixed frame 8 can support the rotation position of the transmission rod 9. The support block 15 can support the rotation position of the other end of the transmission rod 9. Thus, the fixed frame 8 can pull or push the limiting plate 10 to move up and down on the positioning plate 12 through the transmission rod 9. The limiting plate 10 has a fixed support function for the sliding column 11, thereby driving the clamping block 13 to clamp and fix the planetary carrier 7 at the center position of the positioning plate 12, so as to ensure the stability of the planetary gear transmission inside the planetary carrier 7.

[0026] Reference Figure 2 The planetary transmission mechanism includes a bearing 16, the outer wall of which is rotatably connected to the inner wall of the planet carrier 7. A main shaft 14 is rotatably connected inside the planet carrier 7, and the outer wall of the main shaft 14 is fixed to the sun gear inside the planet carrier 7.

[0027] Specifically, the bearing 16 can provide rotational support for the output shaft of the planetary gear in the planetary carrier 7, while the main shaft 14 is connected to the reducer and is connected to the sun gear in the planetary carrier 7, and then the planetary gear achieves the speed reduction effect.

[0028] Reference Figure 2 and Figure 4The outer wall of the support sleeve 1 is provided with a cover 17, the outer wall of the main shaft 14 is provided on the inner wall of the cover 17, and the outer wall of the cover 17 is fixedly connected to the mounting block 18; both outer walls of the support sleeve 1 are fixedly connected to support plates 19, the outer walls of the support plates 19 are fixedly connected to limit frames 20, and the inner wall of the limit frames 20 is slidably connected to guide plates 21; one outer wall of the guide plates 21 is fixedly connected to a first spring 22, the outer wall of the first spring 22 is fixedly connected to the inner wall of the limit frames 20, the other outer wall of the guide plates 21 is fixedly connected to a support column 23, the outer wall of the support column 23 is fixedly connected to an inclined block 24, and the outer wall of the inclined block 24 is provided on the inner wall of the mounting block 18; the outer wall of the guide plates 21 is fixedly connected to a handle 28, and the outer wall of the handle 28 is slidably connected to the inner wall of the limit frames 20.

[0029] Specifically, the support sleeve 1 can support the position of the cover 17, and the cover 17 can protect the planetary carrier 7 inside the support sleeve 1. The cover 17 can also provide connection space between the reducer and the main shaft 14. The support sleeve 1 provides fixed support for the support plate 19, and the support plate 19 can support the position of the limit frame 20. The limit frame 20 can support the sliding position of the guide plate 21. The guide plate 21 provides fixed support for the first spring 22, and the first spring 22 can be fixed by acting in the opposite direction to the limit frame 20. The force pushes the guide plate 21 to slide inward, and the guide plate 21 provides fixed support for the support column 23. The support column 23 can fix the position of the inclined block 24, thereby driving the inclined block 24 to move inward and fit against the inner wall of the mounting block 18, limiting its movement. The guide plate 21 provides fixed support for the handle 28, and by moving the handle 28 outward, the guide plate 21 can be moved outward synchronously, thereby driving the inclined block 24 to detach from the inner wall of the mounting block 18, facilitating the subsequent disassembly of the cover 17.

[0030] Reference Figure 4 The support plate 19 has a sliding connection to a movable column 25, and a push plate 26 is fixedly connected to the outer wall of the movable column 25. One side of the outer wall of the push plate 26 is set on the outer wall of the mounting block 18, and the other side of the outer wall of the push plate 26 is fixedly connected to a second spring 27. The outer wall of the second spring 27 is fixedly connected to the inner wall of the support plate 19.

[0031] Specifically, the support plate 19 can support the sliding position of the movable column 25, and the movable column 25 has a fixed support function for the push plate 26. The opposing force generated by the second spring 27 and the support plate 19 can drive the push plate 26 to slide on the inner wall of the support plate 19, so that when the inclined block 24 is separated from the inner wall of the mounting block 18, the mounting block 18 is popped outward, improving the disassembly efficiency.

[0032] Working principle: When this structure is needed, firstly, pull the handles 28 at both ends of the support sleeve 1 to move outwards simultaneously. The handles 28 can drive the support column 23 to move synchronously through the guide plate 21, thereby causing the inclined block 24 to disengage from the inner wall of the mounting block 18. At this time, the second spring 27 rebounds, causing the push plate 26 to slide outwards on the inner wall of the support plate 19, thus allowing the cover 17 to be disassembled from the outer wall of the support sleeve 1, facilitating the installation and replacement of the planetary carrier 7. Then, place the planetary carrier 7 on the inner wall of the support sleeve 1, and slide it to the inner wall of the support plate 19 through the mounting block 18. The rebound of the first spring 22 pushes the guide plate 21 to move inwards, thereby driving the inclined block 24. The slide block 18 is used to install and fix the cover 17 on the inner wall. The main shaft 14 is connected to the external reducer through the cover 17. At the same time, the screw 5 is rotated, which can drive the lead screw 6 to rotate inside the fixed box 4. The fixed box 4 can drive the side plate 3 to move through the threaded connection. When the side plate 3 moves, it can drive the moving plate 2 to move simultaneously. Then, the moving plate 2 drives the transmission rod 9 to move through the fixed frame 8. The transmission rod 9 then pushes the limiting plate 10 to the center position of the positioning plate 12 through the support block 15. Thus, the sliding column 11 can drive the clamping block 13 to clamp and fix the planetary carrier 7 on the inner wall of the positioning plate 12 to ensure the stability of the planetary carrier 7.

[0033] This mechanism can not only clamp the planet carrier 7 to ensure the meshing accuracy between the planetary gears and the sun gear and ring gear, thus improving the transmission stability, but also disassemble and install the cover 17, making it convenient to install and replace the planet carrier 7 inside the support sleeve 1, thereby improving the flexibility of the mechanism.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stable support structure for a planetary gear set of a speed reducer, comprising a support sleeve (1), characterized in that: The support sleeve (1) is slidably connected to a movable disk (2). Side plates (3) are fixedly connected to the upper and lower outer walls of the movable disk (2). A fixed box (4) is slidably connected to the outer wall of the side plate (3). A lead screw (6) is rotatably connected inside the fixed box (4). A screw rod (5) is fixedly connected to the outer wall of the lead screw (6). The outer wall of the lead screw (6) is threaded onto the outer wall of the side plate (3). A fixed frame (8) is fixedly connected to the outer wall of the movable disk (2). A transmission rod (9) is rotatably connected to the inner wall of the fixed frame (8). A support block (15) is rotatably connected to the inner wall of the transmission rod (9). A limiting disk (10) is fixedly connected to the outer wall of the support block (15). A sliding column (11) is fixedly connected to the outer wall of the limiting disk (10). A positioning disk (12) is fixedly connected to the inner wall of the support sleeve (1). The outer wall of the sliding column (11) is slidably connected to the inner wall of the positioning disk (12). A clamping block (13) is fixedly connected to the outer wall of the sliding column (11). A planetary carrier (7) is provided on the inner wall of the clamping block (13). A planetary transmission mechanism is provided on the inner wall of the planetary carrier (7).

2. The stable support structure for the planetary gear set of the reducer according to claim 1, characterized in that: The planetary transmission mechanism includes a bearing (16), the outer wall of which is rotatably connected to the inner wall of the planet carrier (7). A main shaft (14) is rotatably connected inside the planet carrier (7), and the outer wall of the main shaft (14) is fixed to the sun gear inside the planet carrier (7).

3. The stable support structure for the planetary gear set of the reducer according to claim 2, characterized in that: The outer wall of the support sleeve (1) is provided with a cover (17), the outer wall of the main shaft (14) is provided on the inner wall of the cover (17), and the outer wall of the cover (17) is fixedly connected with an installation block (18).

4. The stable support structure for the planetary gear set of the reducer according to claim 3, characterized in that: The outer walls of both sides of the support sleeve (1) are fixedly connected with support plates (19), the outer walls of the support plates (19) are fixedly connected with limit frames (20), and the inner walls of the limit frames (20) are slidably connected with guide plates (21).

5. The planetary gear set stabilizing support structure for the reducer according to claim 4, characterized in that: A first spring (22) is fixedly connected to one side of the outer wall of the guide plate (21), and the outer wall of the first spring (22) is fixedly connected to the inner wall of the limiting frame (20). A support column (23) is fixedly connected to the other side of the outer wall of the guide plate (21), and an inclined block (24) is fixedly connected to the outer wall of the support column (23). The outer wall of the inclined block (24) is set on the inner wall of the mounting block (18).

6. The planetary gear set stabilizing support structure for the reducer according to claim 5, characterized in that: A handle (28) is fixedly connected to the outer wall of the guide plate (21), and the outer wall of the handle (28) is slidably connected to the inner wall of the limiting frame (20).

7. The planetary gear set stabilizing support structure for the reducer according to claim 4, characterized in that: The support plate (19) is slidably connected to a movable column (25), and a push plate (26) is fixedly connected to the outer wall of the movable column (25).

8. The planetary gear set stabilizing support structure for the reducer according to claim 7, characterized in that: One side of the outer wall of the push plate (26) is set on the outer wall of the mounting block (18), and the other side of the outer wall of the push plate (26) is fixedly connected to a second spring (27), and the outer wall of the second spring (27) is fixedly connected to the inner wall of the support plate (19).

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