Supporting structure for planet carrier of gearbox

Abstract

The utility model discloses a supporting structure for a gear box planet carrier, which comprises a gear box, an outer ring is rotatably connected in the gear box, the planet carrier is arranged in the outer ring, a supporting assembly is arranged in the gear box and located on one side of the planet carrier, and the supporting assembly comprises a supporting frame and a large fluted disc. The supporting frame is connected into the gearbox, the two ends of the large fluted disc are rotationally connected into the supporting frame through ball bearings, the large fluted disc is connected with the rotating shaft, the two ends of the large fluted disc are rotationally connected into the supporting frame through ball bearings, the large fluted disc is connected with the rotating shaft, and the large fluted disc can drive the planet carrier to rotate when rotating. Load borne by the planet carrier can be effectively dispersed, the small fluted discs and the ball bearings are used, stable supporting is provided, friction resistance in the rotating process can be reduced, the planet carrier is more stable during operation, the amplitude of shaking and vibration is greatly reduced, the meshing precision between gears is improved, and the service life of the planet carrier is prolonged. And the service life of the gear box is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of gearbox technology, specifically relating to a support structure for a planetary carrier of a gearbox. Background Technology

[0002] Gearboxes, as key mechanical components widely used in industrial fields, undertake the important tasks of transmitting power and changing speed and torque. They play an indispensable role in many industries such as automobiles, aerospace, shipbuilding, construction machinery, and wind power generation, and the planet carrier is one of the core components of the planetary gear transmission system of the gearbox.

[0003] In existing gearboxes, the planetary carrier not only supports the normal operation of multiple planetary gears but also bears complex loads from them, including radial force, axial force, and torque. However, existing planetary carriers often exhibit insufficient load-bearing capacity when facing high-load and high-speed conditions. During the operation of the planetary gear system, the torque borne by various parts of the planetary carrier is difficult to distribute evenly. This uneven force makes the planetary carrier prone to shaking or vibration during operation. The shaking of the planetary carrier leads to a decrease in the meshing accuracy between gears, resulting in additional friction and wear. This not only reduces transmission efficiency but also shortens the service life of the gearbox. Utility Model Content

[0004] The purpose of this invention is to provide a support structure for a planetary carrier of a gearbox, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a support structure for a planetary carrier of a gearbox, comprising:

[0006] A gearbox has an outer ring rotatably connected inside it, and a planet carrier is provided inside the outer ring. The planet carrier is rotatably connected to the gearbox via a rotating shaft. A support assembly for enhancing the rotational stability of the planet carrier is provided inside the gearbox and on one side of the planet carrier. The support assembly includes a support frame and a large gear disk. The support frame is connected to the gearbox, and both ends of the large gear disk are rotatably connected to the support frame via ball bearings. The large gear disk is connected to the rotating shaft so that when the large gear disk rotates, it drives the planet carrier to rotate through the rotating shaft.

[0007] Preferably, the support frame is also rotatably connected to several small gear discs via ball bearings, and the large gear disc is disposed between the several small gear discs and meshes with the small gear discs.

[0008] Preferably, one side of the gearbox is provided with an oil lubrication pipe, one end of which is connected to several branch pipes inside the gearbox, and the other end of the branch pipes extends to the ball bearing.

[0009] Preferably, a sun gear is provided at the center of the outer ring, and two sets of planetary gears mesh between the outer ring and the sun gear.

[0010] Preferably, the two ends of the planet carrier are connected to two sets of planetary gears respectively.

[0011] Preferably, the bottom of the gearbox is fixed with a mounting base by bolts.

[0012] Preferably, a protective shell is fixed to the surface of the gearbox by bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) By setting up a support assembly, both ends of the large gear disk are rotatably connected to the support frame through ball bearings, and the large gear disk is connected to the shaft. When the large gear disk rotates, it can drive the planetary carrier to rotate. This structural design can effectively distribute the load borne by the planetary carrier and improve its uneven force distribution. The use of multiple small gear disks and ball bearings not only provides stable support, but also reduces frictional resistance during rotation, making the planetary carrier run more smoothly, greatly reducing the amplitude of shaking and vibration, thereby improving the meshing accuracy between gears, reducing additional friction and wear, and extending the service life of the gearbox.

[0015] (2) Several small gear discs are set in the support frame and mesh with the large gear disc to form a multi-stage transmission structure. This structure can further adjust and optimize the power transmitted by the large gear disc, making the power transmission more stable and efficient. The multi-stage transmission can also flexibly adjust the transmission ratio according to actual working needs, which improves the applicability of the gearbox and enables it to better meet the power transmission requirements under different working conditions.

[0016] (3) The lubrication pipe of the gearbox is connected to several branch pipes, which extend to the ball bearing and can provide sufficient lubricating oil for the ball bearing. Good lubrication can reduce the wear of the ball bearing, reduce heat generation, and improve its working efficiency and service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the large gear disc of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the outer ring, planet carrier, and sun gear of this utility model.

[0021] In the diagram: 1. Gearbox; 2. Mounting base; 3. Outer ring; 4. Planetary carrier; 5. Shaft; 6. Support frame; 7. Large gear; 8. Ball bearing; 9. Small gear; 10. Lubrication pipe; 11. Branch pipe; 12. Sun gear; 13. Planetary gears; 14. Protective housing. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides, for example Figure 1-4 The support structure shown is for a planetary carrier of a gearbox, comprising:

[0024] Gearbox 1, with an outer ring 3 rotatably connected inside the gearbox 1 and a planet carrier 4 disposed inside the outer ring 3. The planet carrier 4 is rotatably connected inside the gearbox 1 via a rotating shaft 5. A support assembly for enhancing the rotational stability of the planet carrier 4 is disposed inside the gearbox 1 and on one side of the planet carrier 4. The support assembly includes a support frame 6 and a large gear disk 7. The support frame 6 is connected inside the gearbox 1, and both ends of the large gear disk 7 are rotatably connected to the support frame 6 via ball bearings 8. The large gear disk 7 is connected to the rotating shaft 5 so that when the large gear disk 7 rotates, it drives the planet carrier 4 to rotate via the rotating shaft 5.

[0025] The support frame 6 is also rotatably connected to several small gear disks 9 via ball bearings 8, and the large gear disk 7 is located between the several small gear disks 9 and meshes with the small gear disks 9.

[0026] One side of the gearbox 1 is provided with an oil lubrication pipe 10, and one end of the oil lubrication pipe 10 is connected to several branch pipes 11 inside the gearbox 1. The other end of the branch pipe 11 extends to the ball bearing 8. Lubricating oil can be transported to the ball bearing 8 through the branch pipe 11. The lubricating oil forms an oil film inside the ball bearing 8, which can reduce the friction between the balls and the raceway.

[0027] A sun gear 12 is provided at the center of the outer ring 3, and two sets of planetary gears 13 are engaged between the outer ring 3 and the sun gear 12.

[0028] The two ends of the planet carrier 4 are respectively connected to two sets of planetary gears 13.

[0029] The bottom of the gearbox 1 is fixed to the mounting base 2 by bolts, which facilitates the installation and fixation of the gearbox 1 in the working area.

[0030] A protective shell 14 is bolted to the surface of the gearbox 1. The protective shell 14 is bolted to isolate the internal components of the gearbox 1 from the external environment and prevent dust, debris and other contaminants from entering.

[0031] This support structure for the planetary carrier of the gearbox is used in the entire gearbox 1 system. Power is input from the component connected to the large gear 7. When the external power drives the large gear 7 to rotate, the large gear 7 drives the planetary carrier 4 to rotate via the shaft 5. The planetary carrier 4 then drives the two sets of planetary gears 13 meshing with it to rotate and revolve. The revolve motion of the planetary gears 13 revolves around the sun gear 12, thereby driving the sun gear 12 to rotate. The initial power transmission is achieved through the sun gear 12. Since both ends of the large gear 7 are mounted in the support frame 6 through ball bearings 8, the ball bearings 8 provide stable support and flexible rotation conditions for the large gear 7. When the large gear 7 rotates, it drives the planetary carrier 4 via the shaft 5. The planetary carrier 4 rotates synchronously. Since the large gear 7 and the support frame 6 are connected by ball bearings 8, the friction and resistance during rotation can be effectively reduced, making the rotation of the large gear 7 smoother and thus ensuring the rotational stability of the planetary carrier 4. In addition, several small gears 9 in the support frame 6 mesh with the large gear 7. When the large gear 7 rotates, it drives the small gears 9 to rotate. The rotation of the small gears 9 further adjusts the power transmission path and transmission ratio, making the power transmission more stable and efficient. In this process, the meshing and rotation of the multi-stage gears disperse the load borne by the planetary carrier 4 when it rotates, improves the stress condition of the planetary carrier 4, and reduces the shaking and vibration caused by uneven stress.

[0032] External lubricating oil can enter the gearbox 1 through the lubrication pipe 10. When lubricating oil is injected into the lubrication pipe 10, since the lubrication pipe 10 is connected to several branch pipes 11, and the other end of the branch pipes 11 extends to the ball bearing 8, the lubricating oil can be delivered to the ball bearing 8 through the branch pipes 11. The lubricating oil forms an oil film in the ball bearing 8. On the one hand, it can reduce the friction between the balls and the raceway and reduce wear; on the other hand, the oil film can also play a role in heat dissipation and buffering, carrying away the heat generated by friction, reducing vibration and noise, ensuring the normal operation of the ball bearing 8, and thus ensuring the stable operation of the support assembly.

[0033] The mounting base 2 at the bottom of gearbox 1 is fixed with bolts, providing a stable support foundation for the entire gearbox 1, ensuring that it remains in a fixed position during operation without displacement. The protective shell 14 on the surface of gearbox 1 is fixed with bolts, isolating the internal components of gearbox 1 from the external environment, preventing dust, debris, etc. from entering, and protecting the internal components from external interference. During the power input, transmission, and coordinated operation of the support components and lubrication system, the entire support structure for the planetary carrier 4 of gearbox 1 can operate stably, achieving efficient power transmission and stable rotation of the planetary carrier 4, meeting the usage requirements of industrial equipment under various working conditions.

[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 support structure for a planetary carrier of a gearbox, characterized in that, include: A gearbox (1) is rotatably connected to an outer ring (3) and a planet carrier (4) is provided inside the outer ring (3). The planet carrier (4) is rotatably connected to the gearbox (1) via a rotating shaft (5). A support assembly for enhancing the rotational stability of the planet carrier (4) is provided inside the gearbox (1) and on one side of the planet carrier (4). The support assembly includes a support frame (6) and a large gear disk (7). The support frame (6) is connected to the gearbox (1), and both ends of the large gear disk (7) are rotatably connected to the support frame (6) via ball bearings (8). The large gear disk (7) is connected to the rotating shaft (5) so that when the large gear disk (7) rotates, it drives the planet carrier (4) to rotate via the rotating shaft (5).

2. The support structure for a planetary carrier of a gearbox according to claim 1, characterized in that: The support frame (6) is also rotatably connected to several small gear discs (9) via ball bearings (8), and the large gear disc (7) is located between the several small gear discs (9) and meshes with the small gear discs (9).

3. The support structure for a planetary carrier of a gearbox according to claim 1, characterized in that: One side of the gearbox (1) is provided with an oil lubrication pipe (10), and one end of the oil lubrication pipe (10) is connected to several branch pipes (11) inside the gearbox (1). The other end of the branch pipes (11) extends to the ball bearing (8).

4. A support structure for a planetary carrier of a gearbox according to claim 1, characterized in that: A sun gear (12) is provided at the center of the outer ring (3), and two sets of planetary gears (13) mesh between the outer ring (3) and the sun gear (12).

5. A support structure for a planetary carrier of a gearbox according to claim 4, characterized in that: The two ends of the planet carrier (4) are respectively connected to two sets of planetary gears (13).

6. A support structure for a planetary carrier of a gearbox according to claim 1, characterized in that: The bottom of the gearbox (1) is fixed with a mounting base (2) by bolts.

7. A support structure for a planetary carrier of a gearbox according to claim 1, characterized in that: The surface of the gearbox (1) is fixed with a protective shell (14) by bolts.

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