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Lubricating device and lubricating method

A lubricating device and lubricating oil technology, applied in the direction of transmission, differential transmission, engine lubrication, etc.

Active Publication Date: 2008-02-13
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in such a lubricating device, in order to introduce the lubricating oil scraped up by the gears into the space formed between the oil seal and the bearing, an oil storage pan is required, and there is a problem that the device must be configured accordingly due to the installation space of the oil storage pan. The problem of upscaling

Method used

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  • Lubricating device and lubricating method
  • Lubricating device and lubricating method
  • Lubricating device and lubricating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Figure 1 is a configuration diagram of the entire transmission including the gearbox.

[0068] In the figure, an input shaft 1a for inputting power from the engine side, an output shaft 1b parallel to the input shaft 1a, and an idling shaft 1c for reverse rotation are arranged in the gearbox 1. The multiple gears on 1b transmit the power from the engine to the output shaft 1b at a variable speed ratio.

[0069] An output gear 1d is provided on the output shaft 1b, and the ring gear 4 meshes with the output gear 1d. The ring gear 4 is screwed to the case 2a of the differential device 2 rotatably provided in the case 1e of the transmission case 1 .

[0070] A front wheel side axle 2 b connected to the front wheels is connected to the differential device 2 , and power is transmitted to the front wheel side through the differential device 2 .

[0071] In addition, a transmission gear 6 is fixed to the case 2 a of the differential device 2 by screws, and is formed adjacent...

Embodiment 2

[0096] Hereinafter, FIG. 9 and FIG. 10 are diagrams showing the second embodiment, FIG. 9 is an enlarged sectional structural view of main parts corresponding to FIG. 2 of the first embodiment, and FIG. 10 is a driven gear corresponding to FIG. 3 7 Structural drawing of the section.

[0097] In this example, the radial groove 77 formed on the end surface 74 side of the hub portion 71 of the driven gear 7 is formed in an inclined shape whose depth becomes shallower as the groove bottom surface approaches the inner diameter side.

[0098] That is, the inner diameter side of the radial groove 77 is inclined to the oil seal member 12 side, so that the lubricating oil guided into the radial groove 77 by the extension piece 15a of the scraping member 13 is reliably axially along with the inclination of the radial groove 77. is supplied to the lip 12a of the oil seal member 12.

[0099] The other parts are the same as those of the first embodiment, and the same members are given the...

Embodiment 3

[0101] 11 to 14 are diagrams showing the third embodiment, FIG. 11 is an enlarged cross-sectional structure diagram corresponding to FIG. 2 of the first embodiment, and FIG. 12 is an enlarged cross-sectional structure diagram corresponding to FIG. View in direction V of the scraping member 13 . In addition, FIG. 13 is a configuration diagram of the driven gear 7 viewed from the end face 74 side corresponding to FIG. 4 of the first embodiment. In addition, FIG. 14 is a configuration diagram viewed from the end surface 74 side of the hub portion of the driven gear in a state where the scraping member 13 is assembled.

[0102] In this example, an axially extending portion 16 b extending in the axial direction, that is, toward the lip 12 a side of the oil seal member 12 , is integrally formed on the protruding piece 16 of the scraping member 13 .

[0103] In order to assemble the scraping member 13 so that the axially extending portion 16b protrudes in the axial direction, a notc...

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PUM

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Abstract

A lubricating system is adapted to supply lubricating oil to a lip portion of an oil-seal member for preventing the lubricating oil from leaking out of a case. The lubricating system includes a rotating member, a bearing, a scraping member, and a guiding section. The rotating member is configured and arranged to be rotatably housed within the case and to slidably engage the lip portion of the oil-seal member. The bearing rotatably supports the rotating member. The scraping member is configured and arranged to scrape the lubricating oil discharged from the bearing. The guiding section is configured and arranged to guide the lubricating oil scraped by the scraping member to the lip portion of the oil-seal member.

Description

technical field [0001] The invention relates to a lubricating device and a lubricating method. Background technique [0002] Conventionally, as such a lubricating device, there has been proposed a lubricating device that lubricates the lip of an oil seal provided to prevent lubricating oil from leaking out of a portion of a rotating shaft that is freely rotatable via a bearing. supported on the box. [0003] In this device, a relatively large amount of lubricating oil is efficiently supplied to the lip by introducing lubricating oil scraped up from the gears into the space formed between the oil seal and the bearing. [0004] Patent Document 1: Japanese Patent No. 3274916 [0005] However, in such a lubricating device, in order to introduce the lubricating oil scraped up by the gears into the space formed between the oil seal and the bearing, an oil storage pan is required, and there is a problem that the device must be configured accordingly due to the installation space ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/32F16C33/72F16J15/324F16N7/36
CPCF16H57/0427F16H57/0494F16H57/0472F16J15/324F16H48/00F16H57/029F16H57/04
Inventor 尾本正树奥村达志青山英树小久保明
Owner NISSAN MOTOR CO LTD
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