Sintering-preventing oil guide structure for differential mechanism, differential mechanism and automobile
A differential and anti-sintering technology, applied in differential transmission, transmission box, gear lubrication/cooling, etc., can solve the problem of sintering of planetary gears and planetary shafts, and achieve the effect of avoiding sintering
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Embodiment 1
[0056] See Figure 1 to Figure 4 , Embodiment 1 of the present invention discloses an anti-sintering oil guide structure for a differential, including: a differential case 10 , a side bevel gear 20 , a planetary gear 30 and a planetary shaft 40 . A hollow cavity is opened in the differential case 10 , wherein the side bevel gear 20 , the planetary gear 30 and the planetary shaft 40 are all arranged in the hollow cavity. The central axis of the side bevel gear 20 is perpendicular to the center axis of the planetary gear 30 , the side bevel gear 20 meshes with the planetary gear 30 , and the planetary gear 30 is a bevel gear. Two side bevel gears 20 are provided, and two planetary gears 30 are also provided. The two side bevel gears 20 are arranged coaxially, and the planetary gears 30 are also arranged coaxially. The two planetary gears 30 are sleeved on both ends of the planetary shaft 40 respectively, and the planetary gears 30 and the planetary shaft 40 are rotationally con...
Embodiment 2
[0067] See Figure 5 and Figure 6 , The anti-sintering oil guide structure for the differential in the second embodiment of the present invention is improved on the basis of the first embodiment.
[0068]Specifically, a planetary bushing 50 is sheathed on the inner hole of the planetary gear 30, and the planetary bushing 50 is fixedly sleeved on the inner hole of the planetary gear 30. The fixing method is preferably detachable, such as bolts and nuts. The center of the planetary bushing 50 is provided with a bushing through hole, and the bushing through hole matches with the planetary shaft 40 , and the planetary bushing 50 is sleeved on the planetary shaft 40 , and the planetary shaft 40 and the planetary bushing 50 can rotate relative to each other. A bushing oil groove 51 is provided on the inner wall of the bushing through hole of the planetary bushing 50 . The bushing oil groove 51 is in a spiral shape and extends from one end of the bushing through hole to the other e...
Embodiment 3
[0072] The anti-sintering oil guide structure for the differential in the third embodiment of the present invention is improved on the basis of the first embodiment.
[0073] Specifically, several planetary oil holes for storing spare lubricating oil are arranged in the planetary oil guide groove 31, and several planetary oil holes are arranged sequentially along the spiral direction of the planetary oil guide groove 31, and spare lubricating oil is injected into several planetary oil holes. . When the planetary gear 30 rotates at a high speed, due to the centrifugal force and the continuous lubricating oil passing through the planetary oil guide groove 31, the planetary oil guide groove 31 is filled, and the passing lubricating oil will block the planetary oil hole, so some planetary oil holes The lubricating oil will continue to remain in the oil hole; but when there is no continuous lubricating oil inflow between the planetary gear 30 and the planetary shaft 40, or even the...
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