Planetary gear for differential mechanism

Abstract

The utility model provides a planetary gear for a differential mechanism, and belongs to the technical field of differential mechanisms. The differential mechanism solves the problems that in the existing market, the inner side of a planetary gear is usually cylindrical and is arranged on a shaft rod in a sleeving mode, the contact area between the inner side of the planetary gear and the shaft rod is large, the friction area between the planetary gear and the shaft rod is large when the planetary gear rotates, generated temperature is high, and the temperature in the differential mechanism is high. The planetary gear for the differential mechanism comprises a shell, two side gears are arranged in the shell, a ring gear is arranged on the shell, two connecting ports are formed in the shell, a mounting rod is arranged in the shell, two symmetrical planetary gears are arranged on the mounting rod in a sleeving mode, and the two planetary gears are both meshed with the two side gears. The planetary gear assembly has the advantages that the contact area between the planetary gear and the mounting rod is reduced, and heat generated by friction between the planetary gear and the mounting rod can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of differentials, and particularly relates to a planetary gear for a differential. Background Technique

[0002] A differential is a mechanism that enables the left and right (or front and rear) drive wheels to rotate at different speeds. Its main function is to adjust the speed difference between the left and right (or front and rear) wheels to ensure that the vehicle can run stably and smoothly under various driving conditions.

[0003] The planetary gear is a core component in the differential. In the existing market, the inner side of the planetary gear is usually cylindrical and sleeved on the shaft rod. The contact area between the inner side of the planetary gear and the shaft rod is large. When the planetary gear rotates, the friction area with the shaft rod is large, generating a relatively high temperature, which leads to a high temperature inside the differential and affects the performance of the differential. Therefore, it is of great significance to design a planetary gear for a differential. Summary of the Invention

[0004] The purpose of the utility model is to provide a planetary gear for a differential in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A planetary gear for a differential, characterized in that it includes a housing, two side gears are arranged inside the housing, a ring gear is arranged on the housing, two connection ports are arranged on the housing, an installation rod is arranged inside the housing, two symmetrical planetary gears are sleeved on the installation rod, and both planetary gears are engaged with the two side gears, and an arc-shaped slot is arranged inside the planetary gear.

[0006] In the above-mentioned planetary gear for a differential, a positioning groove is opened inside the housing, a positioning rod is arranged in the positioning groove, and one end of the installation rod is inserted and positioned through the positioning rod.

[0007] Compared with the prior art, in this planetary gear for a differential, the inner side of the planetary gear is set as an arc-shaped slot, and the arc-shaped slot reduces the contact area between the planetary gear and the installation rod, and can reduce the heat generated by the friction between the planetary gear and the installation rod. Brief Description of the Drawings

[0008] Figure 1 It is a three-dimensional schematic diagram of the planetary gear for a differential.

[0009] Figure 2 It is a cross-sectional schematic diagram of the planetary gear for a differential.

[0010] Figure 3 It is a three-dimensional structure schematic diagram of the planetary gear for a differential

[0011] In the figure, 1 is the housing; 2 is the side gear; 3 is the ring gear; 4 is the connection port; 5 is the mounting rod; 6 is the planetary gear; 7 is the arc-shaped slot hole; 8 is the positioning slot; 9 is the positioning rod. Specific embodiments

[0012] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0013] As Figure 1 、 2 Shown in FIGS. 1, 2, and 3, the planetary gear for a differential includes a housing 1. Inside the housing 1, two side gears 2 are provided. On the housing 1, a ring gear 3 is provided. On the housing 1, two connection ports 4 are provided. Inside the housing 1, a mounting rod 5 is provided. Two symmetrical planetary gears 6 are sleeved on the mounting rod 5, and both of the two planetary gears 6 are engaged with the two side gears 2. An arc-shaped slot hole 7 is provided inside the planetary gear 6. The inside of the planetary gear 6 is set as the arc-shaped slot hole 7, which is sleeved on the mounting rod 5 and engaged with the side gear 2. The arc-shaped slot hole 7 reduces the contact area between the planetary gear 6 and the mounting rod 5, and can reduce the heat generated by the friction between the planetary gear 6 and the mounting rod 5.

[0014] Preferably, a positioning slot 8 is opened inside the housing 1, and a positioning rod 9 is provided inside the positioning slot 8. One end of the mounting rod 5 is inserted and positioned through the positioning rod 9, and the mounting rod 5 is fixed through the positioning rod 9 to ensure that the mounting rod 5 does not rotate.

[0015] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0016] Although terms such as housing 1, side gear 2, ring gear 3, connection port 4, mounting rod 5, planetary gear 6, arc-shaped slot hole 7, positioning slot 8, and positioning rod 9 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A planetary gear for a differential, characterized in that: It includes a shell, two side gears are arranged in the shell, a ring gear is arranged on the shell, two connection ports are arranged on the shell, a mounting rod is arranged in the shell, two symmetrical planetary gears are sleeved on the mounting rod, and the two planetary gears are meshed with the two side gears, and arc-shaped slots are arranged on the inner sides of the planetary gears.

2. A planetary gear for a differential according to claim 1, characterized in that: A positioning groove is provided in the shell, a positioning rod is provided in the positioning groove, and one end of the mounting rod is inserted through the positioning rod for positioning.

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