Gearbox planet carrier limiting device
By designing a limit device in the transmission planetary carrier, using the motor drive screw and connecting column to limit the movement of the stop block, the problem of unstable planetary gear assembly during limiting is solved, and the overall stability and use of the transmission is improved. Lifespan and faster cooling effect is achieved through infrared sensors and fans.
Patent Information
- Application Number
- CN202420616521.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-12-27
- Filing Date
- 2024-03-27
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-27
AI Technical Summary
When the existing planetary carrier is at limit position, the planetary gear assembly is not stable enough, resulting in the overall unstable transmission when the equipment vibrates, affecting its service life.
A transmission planetary carrier limiting device is designed, including a mounting frame, a rotor, a stop slot, a motor, a screw and a connecting column. The screw is driven to rotate through the motor, the connecting column slides, and the stop block is inserted into the stop slot to limit the movement of the turntable. , improve overall structural strength and stability, and achieve accurate stop position through infrared sensors and marking blocks, and accelerate heat dissipation and cooling with fans.
It effectively limits the movement of the planetary gear assembly, improves the stability and service life of the gearbox, and further improves the reliability of the system by accelerating heat dissipation and cooling.
Smart Images

Figure CN222296944U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of planetary carriers, and particularly relates to a planetary carrier limiting device for a gearbox. Background Art
[0002] The planetary carrier is one of the main components of the planetary gear transmission. The planetary shaft or bearing is installed on the planetary carrier. When the planetary gear is used as the basic component, it is the part in the mechanism that bears the largest external torque. The planetary carrier is a key component in the planetary gear transmission. It consists of the planetary shaft, bearings and support structure, and is used to support and fix the planetary gears. The planetary gear transmission usually consists of a sun gear, planetary gears and an internal gear. The planetary gears are connected to the sun gear and the internal gear through the planetary carrier to achieve different transmission ratios and output torques.
[0003] For example, a Chinese patent with publication number CN220227796U discloses a split planetary carrier, including an end platform, a base platform is arranged below the end platform, a clamping hole is opened inside the end platform and the base platform, a No. 2 threaded hole is opened inside the clamping hole, a support column is arranged between the end platform and the base platform, both ends of the support column are fixedly connected to a limit clamping platform, the end of the limit clamping platform is fixedly connected with a clamping convex ring, a No. 1 threaded hole is opened inside the clamping convex ring, and the clamping convex ring is clamped with the clamping hole.
[0004] When the planetary gear assembly in the planetary carrier of the prior art is limited, the driving device connected to the planetary gear assembly needs to be suspended. However, after the planetary gear assembly is limited and suspended, when the equipment on which the gearbox is installed vibrates, the planetary gear assembly as a whole is not stable enough. Therefore, it is necessary to add a limiting structure to keep the suspended planetary gear assembly stable. Utility Model Content
[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a gearbox planet carrier limiting device to solve the problems in the background technology.
[0006] The above technical objectives of the utility model are achieved through the following technical solutions:
[0007] A gearbox planetary carrier limiting device comprises a mounting frame, a window is provided on the circumferential side of the mounting frame, a gear assembly is fixedly installed inside the mounting frame, a turntable is fixedly connected to one side of the gear assembly, a stop groove is provided on one side of the turntable, a stop block is movably connected inside the stop groove, a motor is fixedly connected to the inside of one side of the mounting frame, a screw is fixedly connected to the output end of the motor, a connecting column is threadedly connected to the outer surface of the screw, the connecting column is slidably connected to the inside of the mounting frame, one end of the connecting column is fixedly connected to one end of the stop block, a marking component is provided inside the mounting frame, and through the above arrangement, the gear assembly remains stable after being paused, the stability of the gearbox is improved, and the service life of the gearbox is extended.
[0008] As a preferred technical solution, the gear assembly includes a shaft rod, which is rotatably connected to the upper side of the mounting frame, a driving gear is fixedly connected to one side of the shaft rod, and transmission gears are rotatably connected to both sides of the upper end of the mounting frame. The driving gear is meshed with the transmission gear, and the top of the shaft rod is fixedly connected to the driving gear. The turntable is fixedly connected to one side of the shaft rod, and a cover is fixedly connected to the top of the mounting frame. The upper side of the shaft rod and the lower side of the driving gear are both rotatably connected to the cover, thereby realizing the transmission function between the input shaft and the output shaft, and working together to realize the function of the transmission device.
[0009] As a preferred technical solution, a guide seat is fixedly connected to one side of the interior of the mounting frame, and the guide seat is located on the outside of the motor. The screw is rotatably connected to the inside of the guide seat. Limiting grooves are provided on both sides of the guide seat. The interior of the limiting groove is slidably connected to a limiting plate. One end of the limiting plate is fixedly connected to one end of the connecting column, thereby limiting the position of the stop block connected to the connecting column, making it convenient for the stop block to stably align with the stop groove.
[0010] As a preferred technical solution, push switches are fixedly connected to both sides of the guide seat, one side of the limit plate is movably connected to one side of the push switch, a fan is installed on one side of the interior of the mounting frame, and a protective net is fixedly connected to the other side of the interior of the mounting frame. After the gear assembly is paused, the gear assembly can be cooled, so that the heat can be dissipated faster and the cooling effect is better.
[0011] As a preferred technical solution, the marking assembly includes an infrared sensor, which is fixedly connected in the mounting frame and located on the upper side of the motor. A fixed block is fixedly connected to one side of the upper end of the turntable, and a marking block is fixedly connected to one end of the fixed block to facilitate the stop block to align with the stop groove.
[0012] In summary, the utility model mainly has the following beneficial effects:
[0013] First, in the utility model, a rotating disk is installed on the shaft in the gear assembly, a stop slot is provided on the rotating disk, a motor is installed on the mounting frame, the motor is used to drive the screw to rotate, the screw moves the connecting column, the connecting column is connected to the stop block to move it, the stop block is inserted into the stop slot, the rotating disk can be restricted, thereby restricting the entire gear assembly, improving the overall structural strength, the gearbox vibration can also keep the gear assembly stable, and improve the stability of the gearbox;
[0014] Second, in the utility model, an infrared sensor is installed on the mounting frame and a marking block is installed on the turntable. When the infrared sensor emits infrared rays and aligns them with the marking block, the infrared sensor receives the reflected infrared signal and outputs a signal to the overall control system, so that the motor drives the stop block to move and align with the stop groove. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the utility model;
[0016] Figure 2 It is a schematic diagram of the internal structure of the mounting frame of the utility model;
[0017] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure at point A;
[0018] Figure 4 It is a schematic diagram of the connection structure of the turntable and the shaft rod of the utility model.
[0019] Figure numerals: 1. mounting frame; 2. window; 3. gear assembly; 31. driving gear; 32. transmission gear; 33. shaft; 34. driving gear; 4. turntable; 5. stop groove; 6. stop block; 7. motor; 8. screw; 9. marking assembly; 91. infrared sensor; 92. fixing block; 93. marking block; 10. guide seat; 11. connecting column; 111. limit plate; 12. limit groove; 13. push switch; 14. fan; 15. protective net; 16. cover. DETAILED DESCRIPTION
[0020] Example
[0021] refer to Figures 1 to 4, a gearbox planetary carrier limiting device described in this embodiment includes a mounting frame 1, a window 2 is opened on the circumferential side of the mounting frame 1, a gear assembly 3 is fixedly installed inside the mounting frame 1, a turntable 4 is fixedly connected to one side of the gear assembly 3, a stop groove 5 is opened on one side of the turntable 4, and a stop block 6 is movably connected inside the stop groove 5, a motor 7 is fixedly connected to one side of the mounting frame 1, a screw rod 8 is fixedly connected to the output end of the motor 7, and a connecting column 11 is threadedly connected to the outer surface of the screw rod 8, and the connecting column 11 is slidably connected to the inside of the mounting frame 1, one end of the connecting column 11 is fixedly connected to one end of the stop block 6, and a marking component 9 is provided inside the mounting frame 1, the motor 7 drives the screw rod 8 to rotate, the screw rod 8 moves the connecting column 11, and the connecting column 11 is connected to the stop block 6 to make it move, and the stop block 6 is inserted into the stop groove 5, which can limit the turntable 4, thereby limiting the entire gear assembly 3, improving the overall structural strength, and the gearbox vibration can also keep the gear assembly 3 stable, thereby improving the stability of the gearbox.
[0022] refer to Figure 2 The gear assembly 3 includes a shaft rod 33, which is rotatably connected to the upper side of the mounting frame 1, a driving gear 31 is fixedly connected to one side of the shaft rod 33, and transmission gears 32 are rotatably connected to both sides of the upper end of the mounting frame 1. The driving gear 31 is meshed with the transmission gear 32, and a driving gear 34 is fixedly connected to the top of the shaft rod 33. The turntable 4 is fixedly connected to one side of the shaft rod 33; the shaft rod 33 rotates in the mounting frame 1, and a driving gear 34 is fixed to the bottom end of the shaft rod 33. The driving gear 34 rotates the shaft rod 33, and the shaft rod 33 rotates the driving gear 31, and the driving gear 31 can rotate multiple driven gears.
[0023] refer to Figure 1 The top of the mounting frame 1 is fixedly connected with a cover 16, and the upper side of the shaft 33 and the lower side of the driving gear 34 are both rotatably connected to the cover 16; by setting the cover 16, the opening on the mounting frame 1 is blocked, and the shaft 33 and the driving gear 34 can rotate stably on the mounting frame 1.
[0024] refer to Figure 3 A guide seat 10 is fixedly connected to one side of the interior of the mounting frame 1, and the guide seat 10 is located on the outside of the motor 7. The screw 8 is rotatably connected to the inside of the guide seat 10. Limiting grooves 12 are provided on both sides of the guide seat 10, and a limiting plate 111 is slidably connected to the inside of the limiting groove 12. One end of the limiting plate 111 is fixedly connected to one end of the connecting column 11; by fixing the guide seat 10 in the mounting frame 1, limiting grooves 12 are provided on both sides of the guide seat 10, and the limiting plate 111 is slid in the limiting groove 12. The limiting plate 111 is fixed to the connecting column 11 to limit the position of the stop block 6.
[0025] refer to Figure 3, push switches 13 are fixedly connected to both sides of the guide seat 10, one side of the limit plate 111 is movably connected to one side of the push switch 13, a fan 14 is installed on one side of the interior of the mounting frame 1, and a protective net 15 is fixedly connected to the other side of the interior of the mounting frame 1; by fixing the push switch 13 on both sides of the guide seat 10, when the limit plate 111 contacts the push switch 13, the fan 14 can be quickly activated to cool the fan 14, the push switch 13 is connected to the overall control system, and the working time of the fan 14 can be set. The specific principle is the existing technology. Since it is not an innovative point of the present technical solution, it will not be described in detail here, and multiple fans 14 are used to accelerate the cooling of the gear assembly 3.
[0026] refer to Figure 3-4 The marking component 9 includes an infrared sensor 91, which is fixedly connected in the mounting frame 1 and located on the upper side of the motor 7. A fixing block 92 is fixedly connected to one side of the upper end of the turntable 4, and a marking block 93 is fixedly connected to one end of the fixing block 92. By setting the infrared sensor 91 and the marking block 93, after the infrared sensor 91 detects the marking block 93, a signal is sent to the motor 7 through the overall control system, thereby starting the motor 7. This system setting is a prior art and will not be described in detail here.
[0027] Principle and advantages of use: When the infrared sensor 91 emits infrared rays and aligns them with the marking block 93, the infrared sensor 91 receives the reflected infrared signal, and the infrared sensor 91 outputs a signal to the overall control system, which makes the motor 7 work, and the motor 7 drives the screw 8 to rotate, and the screw 8 moves the connecting column 11, and the connecting column 11 connects to the stop block 6 to move it, and the stop block 6 is inserted into the stop groove 5, which can limit the turntable 4, thereby limiting the entire gear assembly 3, improving the overall structural strength, and the gearbox vibration can also keep the gear assembly 3 stable, improving the stability of the gearbox, and at the same time, the pressing switch 13 is triggered, so that the multiple fans 14 on the mounting frame 1 work to accelerate the heat dissipation of the gear assembly 3.
Claims
1. A gearbox planet carrier limiting device, comprising a mounting frame (1), characterized in that: A window (2) is provided on the peripheral side of the mounting frame (1); a gear assembly (3) is fixedly installed inside the mounting frame (1); a turntable (4) is fixedly connected to one side of the gear assembly (3); a stop groove (5) is provided on one side of the turntable (4); a stop block (6) is movably connected inside the stop groove (5); a motor (7) is fixedly connected inside one side of the mounting frame (1); a screw rod (8) is fixedly connected to the output end of the motor (7); a connecting column (11) is threadedly connected to the outer surface of the screw rod (8); the connecting column (11) is slidably connected to the inside of the mounting frame (1); one end of the connecting column (11) is fixedly connected to one end of the stop block (6); a marking assembly (9) is provided inside the mounting frame (1); The marking assembly (9) comprises an infrared sensor (91), the infrared sensor (91) being fixedly connected in the mounting frame (1) and located on the upper side of the motor (7), a fixing block (92) being fixedly connected to one side of the upper end of the turntable (4), and a marking block (93) being fixedly connected to one end of the fixing block (92).
2. A gearbox planet carrier limiting device according to claim 1, characterized in that: The gear assembly (3) comprises a shaft (33), the shaft (33) being rotatably connected to the upper side of the mounting frame (1), a driving gear (31) being fixedly connected to one side of the shaft (33), transmission gears (32) being rotatably connected to both sides of the upper end of the mounting frame (1), the driving gear (31) being meshingly connected to the transmission gear (32), a driving gear (34) being fixedly connected to the top end of the shaft (33), and the turntable (4) being fixedly connected to one side of the shaft (33).
3. A gearbox planet carrier limiting device according to claim 2, characterized in that: The top end of the mounting frame (1) is fixedly connected to a cover (16), and the upper side of the shaft (33) and the lower side of the driving gear (34) are both rotatably connected to the cover (16).
4. A gearbox planet carrier limiting device according to claim 1, characterized in that: A guide seat (10) is fixedly connected to one side of the interior of the mounting frame (1), the guide seat (10) is located on the outside of the motor (7), the screw rod (8) is rotatably connected to the interior of the guide seat (10), both sides of the guide seat (10) are provided with limiting grooves (12), the interior of the limiting groove (12) is slidably connected to a limiting plate (111), and one end of the limiting plate (111) is fixedly connected to one end of the connecting column (11).
5. A gearbox planet carrier limiting device according to claim 4, characterized in that: Both sides of the guide seat (10) are fixedly connected with a push switch (13), and one side of the limit plate (111) is movably connected to one side of the push switch (13).
6. A gearbox planet carrier limiting device according to claim 1, characterized in that: A fan (14) is installed on one side of the interior of the mounting frame (1), and a protective net (15) is fixedly connected to the other side of the interior of the mounting frame (1).
