wear resistant planetary tooth

Abstract

The utility model discloses a wear -resisting planet tooth, including gear body and the inner wheel of being located in the center of gear body, the inner wheel is equipped with the radial extension's limit ring, is equipped with the annular groove of being adapted with limit ring on gear body, is equipped with radial locking assembly and axial pre -tightening assembly between gear body and the inner wheel, radial locking assembly includes the spherical buckle of providing the elasticity through first spring, realizes the radial locking of inner wheel and gear body and the convenient dismounting, axial pre -tightening assembly includes the elastic piece of being constituted by telescopic link and second spring, is located in annular recess and applies the continuous axial pre -tightening force to limit ring, prevents axial to move, the outer wall of inner wheel is equipped with the fin to enhance the heat dissipation, gear body and the surface of inner wheel are equipped with wear -resistant alloy layer to improve the wear resistance, has realized the replaceability of inner wheel or gear body, has the advantages such as convenient, transmission stable, good heat dissipation, long wear -resisting life of assembly and disassembly maintenance.

Description

Technical Field

[0001] This utility model belongs to the technical field of mechanical transmission components, and particularly relates to wear-resistant planetary gears. Background Technology

[0002] Planetary gear mechanisms are one of the core components of transmission systems, possessing advantages such as compact structure, large transmission ratio, and strong load-bearing capacity. They are widely used in gearboxes, reducers, and other fields. As a key component in planetary gear mechanisms, the performance of planetary gears directly affects the reliability, efficiency, and lifespan of the entire transmission system. In existing technologies, planetary gears experience significant wear after prolonged use, affecting positioning accuracy, leading to decreased transmission precision, and potentially generating noise and impact. This necessitates replacement, resulting in resource waste. Furthermore, the transmission components are subjected to enormous frictional forces, causing gear wear and shortening their service life. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art, and to provide wear-resistant planetary gears that can replace the inner wheel or gear body, facilitate disassembly and maintenance, effectively dissipate heat and have a long wear-resistant life.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: Wear-resistant planetary gears include a gear body and an inner wheel located at the center of the gear body. The inner wheel is provided with a radially extending limiting ring. The gear body is provided with an annular groove that matches the limiting ring. A radial locking assembly and an axial preload assembly are provided between the gear body and the inner wheel. The radial locking assembly includes a locking block, which is disposed on the limiting ring. The locking block is engaged into the gear body under the action of elastic force to achieve radial locking between the inner wheel and the gear body. The axial preload assembly includes an elastic element disposed within an annular groove, which applies a continuous axial preload force to the limiting ring.

[0005] Furthermore, the latch is a spherical latch, and the back of the spherical latch is provided with radial outward elastic force by a first spring.

[0006] Furthermore, a positioning groove is provided on the inner wall of the annular groove, and a positioning rod is provided on the limiting ring. The positioning rod is located in the positioning groove to realize the positioning and installation of the inner wheel and the gear body.

[0007] Furthermore, the elastic element includes a telescopic rod and a second spring. The telescopic rod is located in the positioning groove, and the second spring connects the telescopic rod and the positioning groove. The free end of the telescopic rod abuts against the positioning rod.

[0008] Furthermore, the outer wall of the inner wheel is equipped with heat dissipation fins.

[0009] Furthermore, the surfaces of the gear body and the inner wheel are provided with a wear-resistant alloy layer.

[0010] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects: 1. In this utility model, by setting a radial locking assembly consisting of a spherical buckle and a first spring, the buckle is automatically engaged into the slot of the gear body by utilizing the spring force, thereby realizing the quick assembly, reliable radial locking and convenient disassembly of the inner wheel and the gear body. When the inner wheel or a single part of the gear body is worn, it can be replaced independently, realizing cyclic use and effectively saving resources. 2. In this utility model, by setting an axial preload assembly consisting of a telescopic rod and a second spring, an axial preload force is continuously applied to the limiting ring, thereby improving the installation strength between the gear body and the inner gear and improving the smoothness of the planetary gear transmission. 3. In this utility model, heat sinks are integrated on the outer wall of the inner wheel, which significantly increases the heat dissipation area of ​​the inner wheel, effectively controls the working temperature rise, and delays the aging of the lubricating grease. 4. In this utility model, a wear-resistant alloy layer is provided on the surface of the gear body and the inner gear, which greatly improves the hardness, wear resistance and fatigue resistance of the working surface, extends the service life of the entire planetary gear assembly and reduces the operating cost of the whole life cycle. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a front view of the wear-resistant planetary gear in this utility model; Figure 2 This is a side sectional view of the wear-resistant planetary teeth in this utility model; Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A in the middle.

[0012] In the diagram: 1-Gear body; 2-Inner wheel; 3-Limiting ring; 4-Annular groove; 5-Radial locking assembly; 6-Axial pre-tightening assembly; 7-Clamping block; 8-Elastic element; 9-Spherical buckle; 10-First spring; 11-Positioning groove; 12-Positioning rod; 13-Telescopic rod; 14-Second spring; 15-Heat sink. Detailed Implementation

[0013] like Figures 1 to 3 As shown, this utility model has a wear-resistant planetary gear, a gear body 1, and an inner wheel 2 located at the center of the gear body 1. A radially extending limiting ring 3 is provided on the outer side of one end of the inner wheel 2. The limiting ring 3 is integrally formed with the inner wheel 2. The gear body 1 is provided with an annular groove 4 that matches the limiting ring 3, so that when the inner wheel 2 is installed, the limiting ring 3 can be embedded in the annular groove 4 to limit the installation of the inner wheel 2. The gear body 1 and the inner wheel 2 are connected and pre-tightened by a radial locking component 5 and an axial pre-tightening component 6.

[0014] The bottom surface of the limiting ring 3 is provided with a positioning rod 12, and the annular groove 4 is provided with a positioning groove 11 corresponding to the positioning rod 12. During assembly, the positioning rod 12 is inserted into the positioning groove 11 to achieve circumferential positioning of the inner wheel 2 and the gear body 1.

[0015] The radial locking assembly 5 includes a fixed rod and a locking block 7. The fixed rod is located on the outside of the limiting ring 3. The locking block 7 is slidably sleeved on the outside of the fixed rod. The locking block 7 is specifically a spherical buckle 9. A corresponding slot is provided at the position of the annular groove 4. A first spring 10 is sleeved on the fixed rod. The two ends of the first spring 10 are connected to the locking block 7 and the limiting ring 3. That is, the spherical buckle 9 provides radial outward elastic force through the first spring 10, so that the spherical buckle 9 is locked into the corresponding slot of the gear body 1 under the action of elastic force, thereby realizing the radial locking of the inner wheel 2 and the gear body 1.

[0016] The axial preload assembly 6 includes an elastic element 8, which is disposed in the annular groove 4. The elastic element 8 is specifically composed of a telescopic rod 13 and a second spring 14. The telescopic rod 13 is installed in the positioning groove 11, and the second spring 14 connects the telescopic rod 13 and the bottom of the positioning groove 11. The free end of the telescopic rod 13 abuts against the positioning rod 12. The elastic element 8 pushes the telescopic rod 13 through the elastic force of the second spring 14, thereby applying a continuous axial preload force to the limiting ring 3 to ensure that the inner wheel 2 and the gear body 1 are tightly fitted in the axial direction.

[0017] The outer wall of the inner wheel 2 is provided with heat sink 15 to enhance heat dissipation performance and prevent overheating.

[0018] The surfaces of the gear body 1 and the inner gear 2 are also provided with a wear-resistant alloy layer to improve wear resistance and service life.

[0019] The gear body 1 and inner wheel 2 are usually made of high-strength steel. The wear-resistant alloy layer (not shown in the attached figure) can be applied by processes such as spraying, and can be a nickel-based wear-resistant alloy. The spherical buckle 9 and the first spring 10 are made of wear-resistant materials to ensure long-term reliability. After the gear has been used for a long time, the inner wheel 2 can be replaced. The gear body 1 can be recycled by disassembling and replacing the inner wheel 2.

[0020] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A wear-resistant planetary gear, comprising a gear body and an inner gear disposed at the center of the gear body, characterized in that: The inner wheel is provided with a radially extending limiting ring, and the gear body is provided with an annular groove adapted to the limiting ring. A radial locking assembly and an axial preload assembly are provided between the gear body and the inner wheel. The radial locking assembly includes a locking block, which is disposed on the limiting ring. The locking block is engaged into the gear body under the action of elastic force to achieve radial locking between the inner wheel and the gear body. The axial preload assembly includes an elastic element, which is disposed in the annular groove. The elastic element applies a continuous axial preload force to the limiting ring.

2. The wear-resistant planetary gear according to claim 1, characterized in that: The latch is a spherical latch, and the back of the spherical latch is provided with radial outward elastic force by a first spring.

3. The wear-resistant planetary gear according to claim 1, characterized in that: The inner wall of the annular groove is provided with a positioning groove, and the limiting ring is provided with a positioning rod. The positioning rod is located in the positioning groove to realize the positioning and installation of the inner wheel and the gear body.

4. The wear-resistant planetary gear according to claim 3, characterized in that: The elastic element includes a telescopic rod and a second spring. The telescopic rod is disposed in the positioning groove, and the second spring connects the telescopic rod and the positioning groove. The free end of the telescopic rod abuts against the positioning rod.

5. The wear-resistant planetary gear according to claim 1, characterized in that: The outer wall of the inner wheel is provided with heat dissipation fins.

6. The wear-resistant planetary gear according to claim 1, characterized in that: The surfaces of the gear body and the inner wheel are provided with a wear-resistant alloy layer.

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