JPH0590019U - Differential lubricator - Google Patents

Abstract

(57) [Summary] [Purpose] To facilitate the supply of gear oil into the differential case of a vehicle and to reliably lubricate the differential gear and the differential pinion housed in the differential case. A differential gear 6 and a differential pinion 7 are housed in a differential case 3, support members 11 are fixed to the left and right inner surfaces of the differential housing 1, and a flexible member 12 extending toward an end surface 9 of the differential case 3 is attached to the support member 11. , As shown by the arrow, the gear oil flowing down the inner surface of the differential housing 1 is guided to the differential case end surface 9.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for lubricating the inside of a differential case of a vehicle or the like.

[0002]

[Prior Art]

 In a conventional vehicle diff, gear oil at the bottom of the diff housing was scooped up by a rotating ring gear, etc., and flowed down to the left and right along the inner surface of the diff housing.However, since the axle shaft inserted in the diff case is rotating, Since it is difficult to supply gear oil to the inside of the gearbox, it was difficult to sufficiently lubricate the differential gear and differential pinion housed inside the differential case, which could result in seizure or abnormal wear.

[0003]

[Problems to be solved by the device]

 The present invention is intended to facilitate the supply of gear oil inside the differential case and to sufficiently lubricate the differential gear and the differential pinion inside the differential case with a simple structure.

[0004]

[Means for Solving the Problems]

 Therefore, the differential lubrication device according to the present invention has a support member formed on the inner surface of the differential housing and a flexible member attached to the support member and extending toward the end surface of the differential case.

[0005]

[Action]

 That is, since the flexible member extends from the support member formed on the inner surface of the diff housing toward the end surface of the diff case, the gear oil is lifted up from the bottom of the diff housing due to rotation of the ring gear or the like and flows down along the inner surface of the diff housing. Is positively guided from the support member to the end surface of the differential case through the flexible member, so that gear oil is supplied from the end surface of the differential case to the inside of the differential case, and lubrication of the differential gear and the differential pinion housed inside the differential case is easy. Becomes

[0006]

【Example】

 Hereinafter, embodiments of the present invention shown in the drawings will be specifically described. In the diff housing 1 of the vehicle, the diff case 3 is rotatably mounted by the left and right side bearings 2, the ring gear 4 and the pinion spider 5 are fixed to the diff case 3, and the diff gear 6 and the pinion supported by the diff case 3 are fixed. A small gap 10 is formed between the outer surface of the axle shaft 8 engaged with the boss portion of the differential gear 6 and the end surface 9 of the differential case 3 by engaging with the differential pinion 7 supported by the spider 5.

A support member 11 having a substantially V-shaped cross section is fixed to the left and right inner surfaces of the differential housing 1, and a rubber elastic plate having a slightly curved cross section and extending toward the small gap 10 is provided at the tip thereof. Alternatively, a flexible member 12 made of a fiber bundle is attached.

Therefore, when the ring gear 4 is rotationally driven while the vehicle is traveling, the gear oil 13 stored in the differential housing 1 is lifted up by the ring gear 4, and as shown by the arrow, The gear oil that flows down to the left and right along the inner surface is received by the support member 11 and further transmitted through the flexible member 12 to be reliably guided to the above-mentioned gap 10. Therefore, this gear oil is positively passed through the gap 10 into the differential case 3. Since the differential gear 6 and the differential pinion 7 housed in the differential case 3 can be sufficiently lubricated.

Therefore, the diff gear 6 and the diff pinion 7 in the diff case 3 can always operate smoothly, and it is possible to easily eliminate the possibility of seizing or abnormal wear of these components.

Further, since the flexible member 12 is configured to extend from the support member 11 fixed to the inner surface of the differential housing 1 toward the small gap 10, the flexible member 12 is close to the position of the small gap 10. Even when the diff assembly is mounted in the diff housing 1, the outermost surface of the diff assembly, such as a bearing cap, abuts the flexible member 12 even if it protrudes inwardly of the diff housing 1. , The axle can be easily assembled without damaging the diff assembly.

Further, the support member 11 and the flexible member 12 have a very simple structure and can be easily attached, and by adopting this structure, there is no particular increase in cost, and it is practical. Great value.

[0012]

[Effect of the device]

 In the diff lubrication device according to the present invention, the gear oil flowing down along the inner surface of the diff housing is guided from the support member to the end face of the diff case through the flexible member and is positively guided to the inside of the diff case. Since it is easy to supply, it becomes easy to lubricate the differential gear and differential pinion inside the differential case, so it is possible to reliably suppress the occurrence of seizure and abnormal wear at a low cost, and the practical effect is very large. ..

[Brief description of drawings]

FIG. 1 is a front view showing a main part in a broken manner in an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the above embodiment.

[Explanation of Codes] 1 diff housing 3 diff case 4 ring gear 6 diff gear 7 diff pinion 9 diff case end face 10 small gap 11 support member 12 flexible member 13 gear oil

Claims (1)

[Scope of utility model registration request] 1. A diff lubrication apparatus having a support member formed on an inner surface of a diff housing and a flexible member attached to the support member and extending toward an end surface of a diff case.