Planetary gear structure

Abstract

The utility model discloses a planetary gear structure which comprises a connecting seat and a second gear shaft, a connecting clamping groove is formed in the middle of the connecting seat, a connecting shaft is arranged at one end of the second gear shaft, the second gear shaft is fixedly connected with the connecting seat by embedding the connecting shaft into the connecting clamping groove, and the connecting shaft is completely embedded into the connecting clamping groove. By arranging the connecting base, the connecting clamping groove, the connecting shaft and the second gear shaft, after machining is completed, the gear shaft and the connecting base are connected in a close fit mode and are welded and fixed, the machining efficiency is higher, the production cost is lower, and meanwhile the overall structural strength is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the field of planetary gears, in particular to a planetary gear structure. Background Art

[0002] Planetary gears are a type of gear system with a special transmission principle. They are compact and highly efficient and are widely used in aviation, shipping, automobiles, etc. Planetary gears can not only achieve power splitting and large transmission ratios, but also achieve a variety of speed and torque output modes through different configurations.

[0003] like Figure 1 As shown, it includes a connecting seat 1, the outer side of the connecting seat 1 is fixedly connected to a connecting shaft 2, the outer end of the connecting shaft 2 is fixedly connected to a gear shaft 3, and a back-off groove is arranged between the gear shaft 3 and the connecting shaft 2. The existing structure is an integrated connection structure. When processing the integrated structure, it is necessary to first process a back-off groove between the gear and the connecting seat, which has low processing efficiency and high production cost. At the same time, the back-off groove is usually deeper than the depth of the tooth groove, which leads to a decrease in the strength between the gear shaft and the connecting seat, affecting the service life. Utility Model Content

[0004] In order to overcome the disadvantage of reduced connection strength between the gear and the connecting seat in the prior art, one of the purposes of the utility model is to provide a planetary gear structure.

[0005] One of the purposes of the utility model is achieved by adopting the following technical solution: a planetary gear structure, including a connecting seat and a second gear shaft, a connecting slot is opened in the middle of the connecting seat, a connecting shaft is provided at one end of the second gear shaft, the second gear shaft is fixedly connected to the connecting seat by embedding the connecting slot with the connecting shaft, and the connecting shaft is completely embedded in the connecting slot.

[0006] According to the planetary gear structure, the connecting shaft and the connecting slot are adapted to be arranged to facilitate the connection of the second gear shaft and the connecting seat.

[0007] According to the planetary gear structure, the connecting shaft and the connecting slot are arranged in a gear-shaped structure.

[0008] According to the planetary gear structure, the diameter of the second gear shaft is greater than the diameter of the connecting shaft.

[0009] According to the planetary gear structure, the connecting slot and the connecting shaft are connected by interference fit.

[0010] According to the planetary gear structure, the connecting slot and the connecting shaft are connected by welding.

[0011] Beneficial effects:

[0012] By providing a connecting seat, a connecting slot, a connecting shaft and a gear shaft, the gear shaft and the connecting seat are tightly connected and welded after processing, which has higher processing efficiency and lower production cost, while avoiding affecting the overall structural strength.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 It is a three-dimensional structural diagram of the prior art in a planetary gear structure of the utility model;

[0016] Figure 2 This is an overall three-dimensional structural diagram of a planetary gear structure of the utility model;

[0017] Figure 3 This is an exploded view of a planetary gear structure of the utility model.

[0018] Legend:

[0019] 1. Connecting seat; 2. Connecting shaft; 3. Gear shaft 1;

[0020] 4. Gear shaft 2; 5. Connecting slot; 6. Connecting shaft. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-3A planetary gear structure includes a connecting seat 1 and a gear shaft 2 4. A connecting slot 5 is provided in the middle of the connecting seat 1. A connecting shaft 6 is provided at one end of the gear shaft 2 4. The gear shaft 2 4 is fixedly connected to the connecting seat 1 by embedding the connecting slot 5 through the connecting shaft 6. The connecting shaft 6 is completely embedded in the connecting slot 5. The connecting shaft 6 and the connecting slot 5 are adapted to each other. The connecting shaft 6 and the connecting slot 5 are gear-shaped structures. The diameter of the gear shaft 2 4 is larger than the diameter of the connecting shaft 6. When in use, the connecting shaft 6 and the gear shaft 2 4 are integrated into one structure. When installing, the connecting shaft 6 and the connecting slot 5 are clamped together and welded. The processing efficiency is higher and the production cost is lower. At the same time, the overall structural strength is avoided from being affected. It should be understood that in actual applications, the connecting slot 5 and the connecting shaft 6 can also be connected by interference fit.

[0023] Working principle: When in use, the staff first connects the connecting shaft 6 with the connecting slot 5 to connect the gear shaft 2 4 with the connecting seat 1, and then welds and fixes them to increase processing efficiency and increase the overall structural strength.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A planetary gear structure, characterized in that: The invention comprises a connecting seat (1) and a second gear shaft (4); a connecting slot (5) is provided in the middle of the connecting seat (1); a connecting shaft (6) is provided at one end of the second gear shaft (4); the second gear shaft (4) is fixedly connected to the connecting seat (1) by embedding the connecting slot (5) through the connecting shaft (6); and the connecting shaft (6) is completely embedded in the connecting slot (5).

2. A planetary gear structure according to claim 1, characterized in that: The connecting shaft (6) is adapted to fit the connecting slot (5).

3. A planetary gear structure according to claim 1, characterized in that: The connecting shaft (6) and the connecting slot (5) are arranged in a gear-shaped structure.

4. A planetary gear structure according to claim 1, characterized in that: The diameter of the second gear shaft (4) is greater than the diameter of the connecting shaft (6).

5. A planetary gear structure according to claim 1, characterized in that: The connecting slot (5) and the connecting shaft (6) are connected by interference fit.

6. A planetary gear structure according to claim 1, characterized in that: The connecting slot (5) and the connecting shaft (6) are connected by welding.

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