Anti-wear planetary carrier

Abstract

The utility model discloses a kind of anti-wear planetary carrier, including sun gear, three planetary gears, base ring and base disc;Sun gear is coaxially distributed with base ring and base disc, three planetary gears are simultaneously located between base ring and sun gear, each planetary gear is simultaneously meshed with sun gear and base ring each other;Planetary gear is equipped with multiple planet teeth, the inner surface of base ring has multiple base ring grooves, when planetary gear and base ring are meshed each other, there is first gap between planet tooth and base ring groove, and the shape of first gap of adjacent two has difference.The utility model discloses the anti-wear planetary carrier, its beneficial effect lies in, there is the first gap of differentiating shape between planet tooth and base ring groove, so that the stress contact position of each planet tooth when embedding base ring groove produces slight difference, to evenly disperse to the whole contact surface of base ring groove by wear, help to avoid local abnormal wear.

Description

Technical Field

[0001] This utility model belongs to the field of planetary carriers, specifically relating to a wear-resistant planetary carrier. Background Technology

[0002] The patent, with publication number CN208364758U and subject name "A planetary carrier assembly with wear-reducing wheel-side shell," and IPC classification number F16H57 / 08, discloses the following technical solution: "A gear is fixedly connected to the inner side of the connector, a round block is fixedly connected to the back of the connector, a fixed frame is movably connected to the outer side of the round block, three fixed holes are opened on the front of the fixed frame, a sliding frame is fixedly connected to the inside of the round block, a sliding block is provided on the inner side of the sliding frame, a spring frame is fixedly connected to the left side of the slider, a compression spring is fixedly connected to the inner side of the spring frame and located on the left side of the slider, a guide groove is opened on the outer side of the round block, a fixed block is provided inside the guide groove, and an arc-shaped groove is opened on the outer side of the fixed frame."

[0003] Therefore, the above utility model patents have disclosed one technical solution for a wheel-side reducing planetary carrier assembly that can reduce wear. However, the technical solution disclosed in the above utility model patents focuses on significantly reducing the wear of the wheel-side reducing planetary carrier assembly, but does not further solve problems such as avoiding localized abnormal wear, and needs further improvement. Utility Model Content

[0004] This utility model addresses the shortcomings of the existing technology by providing a wear-resistant planetary carrier.

[0005] This utility model adopts the following technical solution: a wear-resistant planetary carrier, comprising a sun gear, three planetary gears, a base ring, and a base disk, wherein: The sun gear is coaxially distributed with the base ring and the base disk, and three planetary gears are simultaneously located between the base ring and the sun gear, with each planetary gear meshing with both the sun gear and the base ring. The planetary gear has multiple planetary teeth, and the inner surface of the base ring has multiple base ring grooves. When the planetary gear meshes with the base ring, there is a first gap between the planetary teeth and the base ring grooves, and the shapes of the first gaps of two adjacent ones are different.

[0006] As a preferred technical solution to the above technical solutions, the wear-resistant planetary carrier also includes a connecting frame, and a third shaft is provided between the connecting frame and each planetary gear. The third shaft passes through the connecting frame, the planetary gear and the base plate.

[0007] As a preferred technical solution of the above technical solutions, the connecting frame has a central hole, and a first shaft is provided between the connecting frame and the sun gear. The first shaft passes through both the sun gear and the base plate. The first shaft is centered relative to the central hole and the sun gear.

[0008] As a preferred technical solution to the above technical solutions, a second shaft is provided between the sun gear and the base disk. The second shaft passes through both the sun gear and the base disk and is eccentrically distributed relative to the sun gear.

[0009] As a preferred technical solution to the above technical solutions, a fourth rod shaft is provided between the base ring and the base disk, and the fourth rod shaft passes through both the base ring and the base disk, with a second gap between the base ring and the base disk.

[0010] The wear-resistant planetary carrier disclosed in this utility model has the advantage of a first gap with a differentiated shape between the planetary teeth and the base ring groove. This results in slight differences in the force contact position when each planetary tooth is embedded in the base ring groove, thereby evenly distributing wear across the entire contact surface of the base ring groove and helping to avoid localized abnormal wear. Furthermore, the multi-shaft through-connection of the sun gear, planetary gears, base ring, connecting frame, and base disk ensures the stability of the coaxial or eccentric distribution of each component. Combined with the second gap design between the base ring and the base disk, this helps to optimize load distribution. Attached Figure Description

[0011] Figure 1 This is the main view of this application.

[0012] Figure 2 This is a perspective view of this application.

[0013] Figure 3 This is a three-dimensional view from another perspective of this application.

[0014] Figure 4 This is a top view of this application.

[0015] Figure 5 It is along Figure 1 A three-dimensional sectional view along the AA direction.

[0016] Figure 6 yes Figure 1 A magnified view of a portion of region A.

[0017] Figure 7 yes Figure 2 A magnified view of a portion of region B.

[0018] Figure 8 yes Figure 5 A magnified view of region C.

[0019] The reference numerals in the attached figures include: 100-Sun gear; 200-Planet gear; 210-Planet tooth; 300-Base ring; 310-Base ring groove; 311-First gap; 400-Connecting frame; 410-Center hole; 500-Base plate; 501-Second gap; 610-First rod shaft; 620-Second rod shaft; 630-Third rod shaft; 640-Fourth rod shaft. Detailed Implementation

[0020] This utility model discloses a wear-resistant planetary carrier. The following description refers to a preferred embodiment (Embodiment 1), with reference to the accompanying drawings. Figures 1 to 8 The specific embodiments of this utility model will be further described below.

[0021] See attached diagram. Figures 1 to 8 , Figures 1 to 5 The wear-resistant planetary carrier is shown from different perspectives. Figures 6 to 8 The partial structure of the wear-resistant planetary carrier is shown from different perspectives.

[0022] Example 1.

[0023] Preferably, the wear-resistant planetary carrier includes a sun gear 100, three planetary gears 200, a base ring 300, and a base disk 500, wherein: The sun gear 100 is coaxially distributed with the base ring 300 and the base disk 500. Three planetary gears 200 are located between the base ring 300 and the sun gear 100. Each planetary gear 200 meshes with both the sun gear 100 and the base ring 300 (gear connection). The planetary gear 200 has multiple planetary teeth 210, and the inner surface of the base ring 300 has multiple base ring grooves 310. When the planetary gear 200 and the base ring 300 mesh with each other, there is a first gap 311 between the planetary teeth 210 and the base ring grooves 310, and the shapes of two adjacent first gaps 311 are different; for example... Figure 6 As shown, when each planetary tooth 210 is embedded in the base ring groove 310, there is a first gap 311 between each planetary tooth 210 and the corresponding base ring groove 310. At the same time, the first gaps 311 of two adjacent teeth are similar but not completely consistent (i.e., they have differences). This makes the force contact position between each planetary tooth 210 and the base ring groove 310 when embedded in the base ring groove 310 have small differences, avoiding the situation where the force contact position between each planetary tooth 210 and the base ring groove 310 is completely consistent when embedded in the base ring groove 310, which would lead to local abnormal wear on the inner surface of the base ring 300. In other words, by using the differentiated force contact position between each planetary tooth 210 and the base ring groove 310 when embedded in the base ring groove 310, the inevitable wear is relatively evenly distributed in the base ring groove 310, ultimately improving the wear resistance.

[0024] The wear-resistant planetary carrier also includes a connecting frame 400, and a third shaft 630 is provided between the connecting frame 400 and each planetary gear 200. The third shaft 630 passes through the connecting frame 400, the planetary gear 200 and the base plate 500.

[0025] The connecting frame 400 has a central hole 410, and a first shaft 610 is provided between the connecting frame 400 and the sun gear 100. The first shaft 610 passes through both the sun gear 100 and the base plate 500. The first shaft 610 is centered relative to the central hole 410 and the sun gear 100.

[0026] A second shaft 620 is provided between the sun gear 100 and the base plate 500. The second shaft 620 passes through both the sun gear 100 and the base plate 500 and is eccentrically distributed relative to the sun gear 100.

[0027] A fourth rod shaft 640 is provided between the base ring 300 and the base plate 500. The fourth rod shaft 640 passes through both the base ring 300 and the base plate 500. A second gap 501 exists between the base ring 300 and the base plate 500.

[0028] It is worth mentioning that the specific material and other technical features of the base ring 300 involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control methods and spatial arrangement of these technical features can be conventionally selected in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0029] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wear-resistant planetary carrier, characterized in that, It includes a sun gear, three planetary gears, a base ring, and a base disk, wherein: The sun gear is coaxially distributed with the base ring and the base disk, and three planetary gears are simultaneously located between the base ring and the sun gear, with each planetary gear meshing with both the sun gear and the base ring. The planetary gear has multiple planetary teeth, and the inner surface of the base ring has multiple base ring grooves. When the planetary gear meshes with the base ring, there is a first gap between the planetary teeth and the base ring grooves, and the shapes of the first gaps of two adjacent ones are different.

2. The wear-resistant planetary carrier according to claim 1, characterized in that, The wear-resistant planetary carrier also includes a connecting frame, and a third shaft is provided between the connecting frame and each planetary gear. The third shaft passes through the connecting frame, the planetary gear and the base plate.

3. The wear-resistant planetary carrier according to claim 2, characterized in that, The connecting frame has a central hole, and there is a first shaft between the connecting frame and the sun gear. The first shaft passes through both the sun gear and the base plate. The first shaft is centered relative to the central hole and the sun gear.

4. The wear-resistant planetary carrier according to claim 1, characterized in that, A second shaft is provided between the sun gear and the base disk. The second shaft passes through both the sun gear and the base disk and is eccentrically distributed relative to the sun gear.

5. The wear-resistant planetary carrier according to claim 1, characterized in that, A fourth rod shaft is provided between the base ring and the base plate, and the fourth rod shaft passes through both the base ring and the base plate, with a second gap between the base ring and the base plate.

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