Planetary gears for automotive differentials
A technology for automotive differentials and planetary gears, applied in gear lubrication/cooling, belts/chains/gears, components with teeth, etc., can solve problems such as poor lubrication effect and affecting service life, and achieve convenient storage and lubrication Oil, improved overall life, simple processing effect
Active Publication Date: 2020-11-17
XUZHOU JINCHENG PLANET TRANSMISSION
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Problems solved by technology
The planetary gear in the existing automobile differential includes a gear body, the middle part of the gear body is provided with a piercing hole in the axial direction, the gear body is provided with outer gear teeth inclined to the direction of the center line of the gear body, one end surface of the gear body is a plane, and the gear body The other end surface of the main body is a spherical surface that matches the inner wall of the differential case, but the lubrication effect between the spherical surface and the inner wall of the differential case is not good, which affects the service life
Method used
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0017] like figure 1 and figure 2 As shown, a planetary gear for an automobile differential includes a gear body 1 having a first shaft hole 1-1, and the gear body 1 is provided with outer gear teeth 2 inclined to the direction of the centerline of the gear body 1.
[0018] The two ends of the gear body 1 are planes perpendicular to the center line of the gear body 1. The diameter of the right end face of the gear body 1 is greater than the diameter of the l...
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The invention discloses a planetary gear used for an automobile differential, and belongs to the technical field of planetary transmission. The two end faces of a gear body are planes perpendicular tothe center line of the gear body. A first circular arc-shaped sliding groove is formed in the right end face of the gear body. An auxiliary sliding body is connected to the right end face of the gearbody. The left end face of the auxiliary sliding body is a plane, and the right end face of the auxiliary sliding body is a spherical face. A second shaft hole is formed in the center of the auxiliary sliding body. A circular positioning countersunk groove is formed in the left end face of the auxiliary sliding body. A second arc-shaped sliding groove is formed in the bottom of the positioning countersunk groove and penetrates through the right end face of the auxiliary sliding body. Balls are mounted between the first arc-shaped sliding groove and the second arc-shaped sliding groove. According to the planetary gear used for the automobile differential, the requirement for the machining precision of the planetary gear is lowered on the whole, and machining is easy; the planetary gear isin rolling connection with the inner wall of a differential shell, so that the friction coefficient is low, and the lubricating property is good; and lubricating oil can be conveniently stored in thepositioning countersunk groove, so that the repair cycle is long, and the overall service life of the planetary gear is prolonged.
Description
technical field [0001] The invention relates to the technical field of planetary transmission, in particular to a planetary gear for an automobile differential. Background technique [0002] The automobile differential is a mechanism that enables the left and right (or front and rear) drive wheels to rotate at different speeds. It is mainly composed of left and right side shaft gears, two planetary gears and a gear carrier. The planetary gear in the existing automobile differential includes a gear body, the middle part of the gear body is provided with a piercing hole in the axial direction, the gear body is provided with outer gear teeth inclined to the direction of the center line of the gear body, one end surface of the gear body is a plane, and the gear body The other end surface of the main body is a spherical surface matched to the inner wall of the differential case, but the lubrication effect between the spherical surface and the inner wall of the differential case i...
Claims
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IPC IPC(8): F16H55/17F16H55/12F16H57/04
CPCF16H55/12F16H55/17F16H57/0431F16H57/0493
Inventor 张彭
Owner XUZHOU JINCHENG PLANET TRANSMISSION