Gearbox assembly with limiting protection function
By designing a limit structure and a design that is easy to repair in the gear box assembly, the gear impact problem caused by the gear box tilting when the rotating shaft bearing is damaged is solved, and effective protection and convenient maintenance of the gears are achieved.
Patent Information
- Application Number
- CN202421714765.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-19
AI Technical Summary
When the shaft bearings of the existing gear box are damaged, the driving gear is prone to tilt, causing the gear to impact, causing the gear box to damage.
A gear box assembly with limit protection function is designed to limit the driving gear through a moving frame, connecting shaft and rotating wheel to prevent swing, and to replace and repair the gears through a bidirectional threaded rod and a restriction guide rod.
It effectively prevents impact damage from the gears inside the gear box, improves the protection effect of the gears, and facilitates the replacement and maintenance of the driving gears, avoiding interference during the maintenance process.
Smart Images
Figure CN223035626U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gearboxes, and particularly relates to a gearbox assembly with a limit protection function. Background Art
[0002] Gearboxes are widely used. For example, in the application of wind turbine generators, the gearbox is an important mechanical component that is widely used in wind turbine generators. Its main function is to transmit the power generated by the wind turbine under the action of wind to the generator and enable it to obtain the corresponding rotational speed.
[0003] When some existing gearboxes are in use, the gears are usually directly fixed on the rotating shafts. Then, when the bearings on the rotating shafts are damaged, the gears will tilt, and then the gears will come into contact with other gears. Then, when the gears rotate at high speed, the gears will collide, causing damage to the gears and then damage to the gearbox. Content of the Utility Model
[0004] The purpose of the utility model is to at least solve one of the technical problems existing in the prior art, and provide a gearbox assembly with a limit protection function, which can solve the problems in the background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A gearbox assembly with a limit protection function, including a gearbox. Two bearing sleeves are fixedly installed inside the gearbox. Bearings are fixedly installed inside both of the two bearing sleeves. Drive shafts are fixedly installed inside both of the two bearings. A driving gear is fixedly installed at the top of the drive shaft. Two bidirectional threaded rods are rotatably connected inside the gearbox. Two threaded sleeves are threadedly connected to the surfaces of both of the two bidirectional threaded rods. Moving frames are rotatably sleeved on all four threaded sleeves. Connecting shafts are fixedly installed on one side of all four moving frames close to the driving gear. Annular grooves are respectively opened on both sides of the surface of the driving gear. All four connecting shafts are slidably connected inside the annular grooves.
[0006] Preferably, a rotating wheel is rotatably connected to one end of the connecting shaft extending into the annular groove, and the rotating wheel is slidably connected inside the annular groove.
[0007] Preferably, limiting guide rods are threadedly connected to all four moving frames, and all four limiting guide rods slidably penetrate through the gearbox and extend to the outside of the gearbox.
[0008] Preferably, a baffle is fixedly installed on the threaded sleeve, and a torsion spring is movably sleeved on the surface of the threaded sleeve. Two ends of the torsion spring are respectively fixedly connected to the baffle and the moving frame.
[0009] Preferably, a protective box is fixedly installed outside the gearbox, and both bidirectional threaded rods rotatably penetrate through the gearbox and the protective box and extend into the interior of the protective box. Second sprockets are fixedly sleeved on both bidirectional threaded rods.
[0010] Preferably, a driving rotating shaft is rotatably connected inside the protective box, and two chains are fixedly sleeved on the driving rotating shaft.
[0011] Preferably, chains are drivingly connected to both the first sprockets and the second sprockets.
[0012] Preferably, the structures on the four moving frames are the same.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. For the gearbox assembly with a limit protection function, the driving gear is limited by the moving frame, connecting shaft and rotating wheel, thereby preventing the driving gear from swinging when the bearing is damaged, which may cause other gears inside the gearbox to collide and damage other gears inside the gearbox, improving the protection of the gears inside the gearbox.
[0015] 2. For the gearbox assembly with a limit protection function, the two threaded sleeves on one bidirectional threaded rod move away from each other, so that the four limiting guide rods slide inside the gearbox, and the rotating wheel and the connecting shaft slide out of the annular groove, no longer restricting the driving gear, so as to replace or repair the driving gear, facilitating the replacement and repair of the driving gear and preventing interference with the driving gear during its repair.
[0016] 3. For the gearbox assembly with a limit protection function, by rotating the limiting guide rod, the limiting guide rod can be disengaged from the moving frame. When the baffle moves to contact the inner wall of the gearbox and the moving frame still interferes with the repair of the driving gear, rotate the moving frame so that the moving frame rotates on the threaded sleeve. At the same time, since the baffle contacts the inner wall of the gearbox and does not move, the moving frame rotates on the threaded sleeve, deforming the torsion spring, thus facilitating the repair of the driving gear. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The following further illustrates the present utility model with reference to the drawings and embodiments:
[0018] Figure 1 is a schematic structural diagram of the gearbox assembly with a limit protection function of the present utility model;
[0019] Figure 2 is an internal schematic diagram of the limiting guide rod of the present utility model;
[0020] Figure 3Internal schematic diagram of the gearbox of the present utility model;
[0021] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram at position A in
[0022] Reference numerals: 1, gearbox; 2, limiting guide rod; 3, protection box; 4, driving rotating shaft; 5, first sprocket; 6, chain; 7, bidirectional threaded rod; 8, second sprocket; 9, bearing sleeve; 10, bearing; 11, driving shaft; 12, driving gear; 13, annular groove; 14, rotating wheel; 15, connecting shaft; 16, moving frame; 17, threaded sleeve; 18, baffle; 19, torsion spring. Detailed implementation manners
[0023] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.
[0024] Please refer to Figures 1-4 , the present utility model provides a technical solution: a gearbox assembly with a limit protection function, including a gearbox 1. Two bearing sleeves 9 are fixedly installed inside the gearbox 1. Bearings 10 are fixedly installed inside both of the two bearing sleeves 9. Driving shafts 11 are fixedly installed inside both of the two bearings 10. A driving gear 12 is fixedly installed at the top of the driving shaft 11. Two bidirectional threaded rods 7 are rotatably connected inside the gearbox 1. Threaded sleeves 17 are threadedly connected to the surfaces of both of the two bidirectional threaded rods 7. Moving frames 16 are rotatably sleeved on all four threaded sleeves 17. Connecting shafts 15 are fixedly installed on one side of all four moving frames 16 close to the driving gear 12. Annular grooves 13 are formed on both sides of the surface of the driving gear 12. All four connecting shafts 15 are slidably connected inside the annular grooves 13. One end of the connecting shaft 15 extending into the annular groove 13 is rotatably connected to a rotating wheel 14, and the rotating wheel 14 is slidably connected inside the annular groove 13.
[0025] The driving gear 12 is limited by the moving frame 16, the connecting shaft 15 and the rotating wheel 14. Thus, when the bearing 10 is damaged, the phenomenon that the driving gear 12 swings is prevented, which may cause other gears inside the gearbox 1 to collide, and further cause damage to other gears inside the gearbox 1, improving the protection of the gears inside the gearbox 1.
[0026] Through the setting of the rotating wheel 14, the friction between the connecting shaft 15 and the annular groove 13 is facilitated, and thus the smoothness of the driving gear 12 during rotation is ensured.
[0027] The four movable frames 16 are all threadedly connected with limiting guide rods 2, and the four limiting guide rods 2 slide through the gear box 1 and extend to the outside of the gear box 1. A baffle 18 is fixedly installed on the threaded sleeve 17, and a torsion spring 19 is movably sleeved on the surface of the threaded sleeve 17. The two ends of the torsion spring 19 are respectively fixedly connected to the baffle 18 and the movable frame 16, and the structures on the four movable frames 16 are the same.
[0028] The two bidirectional threaded rods 7 are rotated to make the two threaded sleeves 17 on one bidirectional threaded rod 7 move away from each other, so that the four limiting guide rods 2 slide inside the gear box 1, and the rotating wheel 14 and the connecting shaft 15 slide out from the inside of the annular groove 13, so that the driving gear 12 is no longer restricted, and the driving gear 12 can be replaced or repaired, which is convenient for replacing and repairing the driving gear 12 and preventing interference with the driving gear 12 when the driving gear 12 is repaired.
[0029] By rotating the limiting guide rod 2, the limiting guide rod 2 can be separated from the moving frame 16. When the baffle 18 moves to the inner wall of the gear box 1 and contacts the inner wall of the gear box 1, the moving frame 16 still interferes with the maintenance of the driving gear 12. The moving frame 16 is rotated to rotate on the threaded sleeve 17. At the same time, since the baffle 18 contacts the inner wall of the gear box 1 and no longer moves, the moving frame 16 rotates on the threaded sleeve 17, causing the torsion spring 19 to deform, thereby facilitating the maintenance of the driving gear 12.
[0030] A protective box 3 is fixedly installed on the outside of the gear box 1, and two bidirectional threaded rods 7 rotate through the gear box 1 and the protective box 3 and extend to the inside of the protective box 3. A second sprocket 8 is fixedly sleeved on the two bidirectional threaded rods 7. The inside of the protective box 3 is rotatably connected to a driving shaft 4, and two chains 6 are fixedly sleeved on the driving shaft 4. The two first sprockets 5 and the two second sprockets 8 are transmission-connected with chains 6.
[0031] The driving shaft 4 is rotated to rotate the two first sprockets 5, and the two chains 6 are driven to rotate by the two first sprockets 5, thereby rotating the two bidirectional threaded rods 7, thereby facilitating the control of the two second sprockets 8, so that the two bidirectional threaded rods 7 can move simultaneously.
[0032] Working principle:
[0033] The driving gear 12 is limited by the movable frame 16 , the connecting shaft 15 and the rotating wheel 14 , so as to prevent the driving gear 12 from swinging when the bearing 10 is damaged, thereby preventing other gears inside the gear box 1 from colliding.
[0034] Rotate the two bidirectional threaded rods 7 to move the two threaded sleeves 17 on one bidirectional threaded rod 7 away from each other, thereby causing the four limiting guide rods 2 to slide inside the gearbox 1, thereby causing the rotating wheel 14 and the connecting shaft 15 to slide out of the annular groove 13, and thus no longer restricting the driving gear 12, so as to replace or repair the driving gear 12.
[0035] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can also be made without departing from the gist of the present invention.
Claims
1. A gearbox assembly with a limit protection function, comprising a gearbox (1), characterized in that: Two bearing sleeves (9) are fixedly installed inside the gear box (1), bearings (10) are fixedly installed inside the two bearing sleeves (9), drive shafts (11) are fixedly installed inside the two bearings (10), and a driving gear (12) is fixedly installed on the top of the driving shaft (11). Two bidirectional threaded rods (7) are rotatably connected inside the gear box (1), and the surfaces of the two bidirectional threaded rods (7) are threadedly connected to two threaded sleeves (17), and four threaded sleeves (17) are rotatably sleeved on each of the four threaded sleeves (17). A connecting shaft (15) is fixedly installed on one side of the four moving frames (16) close to the driving gear (12), and an annular groove (13) is provided on both sides of the surface of the driving gear (12), and the four connecting shafts (15) are slidably connected inside the annular groove (13).
2. The gearbox assembly with position limiting protection function according to claim 1, characterized in that: One end of the connecting shaft (15) extending to the inside of the annular groove (13) is rotatably connected to a rotating wheel (14), and the rotating wheel (14) is slidably connected inside the annular groove (13).
3. The gearbox assembly with position limiting protection function according to claim 2, characterized in that: The four movable frames (16) are all threadedly connected with limiting guide rods (2), and the four limiting guide rods (2) are all slidably passed through the gear box (1) and extend to the outside of the gear box (1).
4. The gearbox assembly with position limiting protection function according to claim 3 is characterized in that: A baffle (18) is fixedly mounted on the threaded sleeve (17), a torsion spring (19) is movably sleeved on the surface of the threaded sleeve (17), and two ends of the torsion spring (19) are respectively fixedly connected to the baffle (18) and the movable frame (16).
5. The gearbox assembly with position limiting protection function according to claim 4, characterized in that: A protection box (3) is fixedly mounted on the outside of the gear box (1), two bidirectional threaded rods (7) are rotated to penetrate the gear box (1) and the protection box (3) and extend into the interior of the protection box (3), and a second sprocket (8) is fixedly sleeved on the two bidirectional threaded rods (7).
6. The gearbox assembly with position limiting protection function according to claim 5, characterized in that: The protection box (3) is rotatably connected to a driving shaft (4) inside, and two chains (6) are fixedly sleeved on the driving shaft (4).
7. The gearbox assembly with position limiting protection function according to claim 1, characterized in that: The structures on the four movable frames (16) are the same.