High-precision thin-walled planetary gear

Abstract

The utility model discloses a high accuracy's thin wall planetary wheel, including planetary wheel body, the centre groove is passed in on planetary wheel body, the clamping slot is seted up in the inside of planetary wheel body, the clamping slot is linked together with the centre groove, the heat abstractor that is provided with on planetary wheel body, the heat abstractor includes the heat dissipation groove that sets up in the outer wall of planetary wheel body, the lubricating oil is provided with in the inside of heat dissipation groove. The utility model discloses reasonable in structure, through the setting of clamping slot, can install the clamping spring and bearing to the inside of clamping slot, through the cooperation of heat dissipation groove and lubricating oil, not only can play the function of lubrication, the internal lubricating oil still can absorb the heat that planetary wheel body generates when rubbing, and through the setting of heat dissipation groove, still can play the function of marking surface, finally, the planetary wheel body and other products are assembled with the subsequent operator conveniently.

Description

Technical Field

[0001] This utility model relates to the field of planetary gear technology, and in particular to a high-precision thin-walled planetary gear. Background Technology

[0002] Planetary gears are the core components of planetary gear trains. They are gears that rotate around the central gear and rotate on their own axis. They are mainly used in mechanical transmission systems to achieve speed change, steering, or power distribution functions.

[0003] The main characteristics of planetary gears are their small size, high load-bearing capacity, and smooth operation. However, during rotation, planetary gears drive other planetary gears or ring gears to rotate, generating friction that produces high temperatures. Over time, this not only easily leads to external wear on the planetary gears but also affects their service life. To address these issues, a solution is proposed below. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision thin-walled planetary gear to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A high-precision thin-walled planetary gear includes a planetary gear body with a central groove running through it. A retaining groove is formed inside the planetary gear body and is connected to the central groove. A heat dissipation mechanism is provided on the planetary gear body, including a heat dissipation groove formed on the outer wall of the planetary gear body, and lubricating oil is provided inside the heat dissipation groove.

[0006] Preferably, both ends of the outer wall of the central groove are provided with rounded corners.

[0007] Preferably, the tooth surface of the planetary gear body is arranged in a tooth-oriented drum shape.

[0008] Preferably, a retaining spring is installed inside the slot.

[0009] The beneficial effects of this utility model are as follows: by setting the slot, the snap ring and bearing can be installed inside the slot. With the cooperation of the heat dissipation groove and the lubricating oil, it can not only play a lubricating role, but the internal lubricating oil can also absorb the heat generated by the friction of the planetary gear body. Furthermore, by setting the heat dissipation groove, it can also serve as a marking surface, which ultimately facilitates the subsequent assembly of the planetary gear body with other products by the operators. Attached Figure Description

[0010] Figure 1 This is a structural cross-sectional view of an embodiment; Figure 2 This is a schematic diagram of the tooth orientation of the planetary gear body in an embodiment.

[0011] Reference numerals: 1. Planetary gear body; 11. Center groove; 111. Rounded corner; 12. Slot; 2. Heat dissipation groove. Detailed Implementation

[0012] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model's concept should be protected. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from the geometric center of a specific component.

[0013] like Figures 1 to 2 As shown, a high-precision thin-walled planetary gear includes a planetary gear body 1 with a central groove 11 running through it. Both ends of the outer wall of the central groove 11 are provided with rounded corners 111. The rounded corners 111 design can avoid sharp corners at the orifice, reduce stress concentration, thereby reducing the risk of crack formation and enhancing structural strength.

[0014] The planetary gear body 1 has a groove 12 inside, which is connected to the central groove 11. A retaining spring is installed inside the groove 12, and a bearing is installed at each end of the retaining spring. During transmission, the planetary gear body 1 needs to withstand the meshing force from the sun gear and the internal gear ring. The bearings can distribute these loads through the coordinated action of the inner ring, outer ring, and rolling elements, thereby ensuring the reliability of torque transmission. The tooth surface of the planetary gear body 1 is designed with a tooth-direction drum shape. Its main purpose is to improve the tooth-direction load distribution. By forming a curved surface with a central convexity in the tooth width direction, it compensates for the tooth misalignment caused by manufacturing errors, installation deviations, or shaft deformation. This design allows the load to be distributed more evenly in the middle of the tooth surface, avoiding local overload and stress concentration, thereby reducing the risk of wear and pitting and extending the service life.

[0015] The planetary gear body 1 is provided with a heat dissipation mechanism, which includes a heat dissipation groove 2 opened on the outer wall of the planetary gear body 1. The heat dissipation groove 2 is filled with lubricating oil. Through the cooperation of the heat dissipation groove 2 and the lubricating oil, not only can it play a lubricating role, but the lubricating oil inside can also absorb the heat generated by the friction of the planetary gear body 1.

[0016] Since the planetary gear body 1 has a heat dissipation groove 2 on one side, the side with the heat dissipation groove 2 can serve as a marking surface, which ultimately facilitates the subsequent assembly of the planetary gear body 1 with other products by the operators.

[0017] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. 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 high-precision thin-walled planetary gear, comprising a planetary gear body (1), characterized in that, The planetary gear body (1) has a central groove (11) running through it. The planetary gear body (1) has a slot (12) inside it, which is connected to the central groove (11). The planetary gear body (1) is provided with a heat dissipation mechanism, which includes a heat dissipation groove (2) on the outer wall of the planetary gear body (1). The heat dissipation groove (2) is provided with lubricating oil inside it.

2. The high-precision thin-walled planetary gear according to claim 1, characterized in that, Both ends of the outer wall of the central groove (11) are provided with rounded corners (111).

3. A high-precision thin-walled planetary gear according to claim 2, characterized in that, The tooth surface of the planetary gear body (1) is arranged in a tooth-oriented drum shape.

4. A high-precision thin-walled planetary gear according to claim 1, characterized in that, A retaining ring is installed inside the slot (12).

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