Novel planetary gear
By introducing ball bearings and a lubrication system into the planetary gears, the problem of high friction between the transmission rod and the support frame is solved, achieving higher transmission efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2026-03-24
AI Technical Summary
In existing planetary gear transmission processes, the contact between the transmission rod and the inner wall of the support frame results in high friction, which affects transmission efficiency.
The design of ball bearings contacting the transmission rod reduces the contact area between the transmission rod and the inner wall of the support frame, and lubrication is achieved through oil grooves and oil injection holes, thereby reducing friction.
It improves the transmission efficiency of the transmission rod, reduces friction, and enhances the stability and efficiency of the transmission system.
Smart Images
Figure CN224033024U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to planetary gear technical field, and particularly relates to a novel planetary gear. BACKGROUND
[0002] The planetary gear is the gear system that in addition to being able to rotate around own rotation axis like fixed axis gear, the rotation axis thereof also rotates around the axis of other gears.
[0003] In order to ensure the stability of planetary gear and transmission rod rotation, the support frame is usually arranged on the surface of transmission rod to support transmission rod, but transmission rod will contact with the inner wall of support frame when rotating, and then friction is generated, which affects the transmission efficiency of transmission rod, therefore, it is of great significance to design a novel planetary gear. SUMMARY
[0004] The utility model discloses a novel planetary gear to solve the above problems in the prior art.
[0005] The utility model discloses a novel planetary gear, including gear ring, sun gear and planetary gear, its characterized in that gear ring one side fixedly arranged with support frame, support frame inner wall rotatablely arranged with transmission rod, support frame inner wall is set with the bead groove, the bead groove is slidably arranged with the ball bearing, and the ball bearing is in contact with the surface of transmission rod.
[0006] In the above-mentioned novel planetary gear, the planetary carrier is fixedly arranged on the transmission rod, and the planetary gear is rotatably installed on the planetary carrier.
[0007] In the above-mentioned novel planetary gear, the oil groove is formed in the inner wall of the support frame, and the oil groove is communicated with the bead groove.
[0008] In the above-mentioned novel planetary gear, the oil injection hole communicated with the oil groove is formed in the support frame, and the sealing plug is arranged in the oil injection hole.
[0009] Compared with the prior art, the novel planetary gear reduces the contact area between the transmission rod and the inner wall of the support frame, reduces the friction force generated between the transmission rod and the support frame when the transmission rod rotates, and improves the transmission efficiency of the transmission rod. BRIEF DESCRIPTION OF DRAWINGS
[0010] Fig. 1 It is the three-dimensional schematic view of the novel planetary gear.
[0011] Fig. 2 It is the internal structure schematic view of the support frame of the novel planetary gear.
[0012] In the diagram, 1 is the gear ring; 2 is the sun gear; 3 is the planet gear; 4 is the support frame; 5 is the transmission rod; 6 is the ball groove; 7 is the ball; 8 is the planet carrier; 9 is the oil groove; 10 is the oil injection hole; and 11 is the sealing bolt. Detailed Implementation
[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0014] like Figs. 1-2 As shown, this novel planetary gear includes a gear ring 1, a sun gear 2, and planet gears 3. A support frame 4 is fixedly mounted on one side of the gear ring 1. A transmission rod 5 is rotatably mounted on the inner wall of the support frame 4. A ball groove 6 is formed on the inner wall of the support frame 4, and a ball 7 is slidably mounted in the ball groove 6. The ball 7 is in contact with the surface of the transmission rod 5. By setting the ball 7 in the support frame 4 and the transmission rod 5 in contact with the ball 7, the contact area between the transmission rod 5 and the inner wall of the support frame 4 is greatly reduced. When the transmission rod 5 rotates, the friction force generated between the transmission rod 5 and the support frame 4 is reduced, thereby improving the transmission efficiency of the transmission rod 5.
[0015] Preferably, a planetary carrier 8 is fixedly mounted on the transmission rod 5, and the planetary gear 3 is rotatably mounted on the planetary carrier 8.
[0016] Preferably, the inner wall of the support frame 4 is provided with an oil groove 9, and the oil groove 9 is connected to the ball groove 6. The oil groove 9 is provided inside the support frame 4, and lubricating oil is added to the oil groove 9. The lubricating oil can lubricate the ball 7 and reduce the friction between the ball 7 and the ball groove 6, and between the ball 7 and the transmission rod 5.
[0017] Preferably, the support frame 4 has an oil injection hole 10 that communicates with the oil tank 9. A sealing bolt 11 is bolted inside the oil injection hole 10. Oil is added to the oil tank 9 through the oil injection hole 10, and the sealing bolt 11 can prevent leakage at the oil injection hole 10.
[0018] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0019] Although this document uses a number of technical terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.
Claims
1. A novel planetary gear, comprising a ring gear (1), a sun gear (2), and planet gears (3), characterized in that, A support frame (4) is fixedly provided on one side of the gear ring (1). A transmission rod (5) is rotatably provided on the inner wall of the support frame (4). A ball groove (6) is opened on the inner wall of the support frame (4). A ball (7) is slidably provided in the ball groove (6), and the ball (7) is in contact with the surface of the transmission rod (5).
2. The novel planetary gear according to claim 1, characterized in that, The transmission rod (5) is fixedly provided with a planetary carrier (8), and the planetary gear (3) is rotatably mounted on the planetary carrier (8).
3. A novel planetary gear according to claim 1, characterized in that, The inner wall of the support frame (4) is provided with an oil groove (9), and the oil groove (9) is connected to the bead groove (6).
4. A novel planetary gear according to claim 1, characterized in that, The support frame (4) is provided with an oil injection hole (10) that communicates with the oil tank (9), and a sealing bolt (11) is provided in the oil injection hole (10).