JP2592541Y2 - Lubrication structure of manual transmission - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a lubricating structure for a manual transmission.

[0002]

2. Description of the Related Art Conventionally, a lubricating structure of a manual transmission has a structure as shown in FIG. 6, in which oil stored in an oil sump 1 is scraped upward by the rotation of a gear 2, and
The oil thus scraped was introduced into the oil conduit 5 from the inlet 4 and supplied to the lubricating part through the oil conduit 5.

[0003]

In such a conventional structure, when the rotation of the scraping gear 2 is accelerated, bubbles are mixed into the scraped oil, and the oil supplied to the lubricating part by the mixed bubbles is increased. However, there was a problem that the amount of sacrifice decreased.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a lubricating structure capable of ensuring a sufficient amount of oil supplied to a lubricating portion. The gist of the invention is to provide an oil reservoir having an oil sump, a scooping gear capable of being scooped up by rotating the oil in the oil sump, and an intake port for taking in the oil scooped up by the scooping gear. in the lubricating structure of a manual transmission and a conduit, wherein the inlet is
It is formed in a square shape and has multiple
Several rectifying plates are provided and the inlet
At the top, a wire mesh is placed in a rectangular holding frame.
It is that they are.

[0005]

[Function] The bubbles mixed in the oil scooped up by the scraping gear are eliminated by passing through the wire netting and the current plate, and the oil which does not contain the bubbles is supplied to the intake, and the oil is passed through the oil conduit. A sufficient amount of oil can be supplied to the lubrication unit.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a lubricating structure of a manual transmission. An oil reservoir 1 is capable of storing oil 0, and a rotatable scraping gear 2 is disposed in the oil reservoir 1. The lower portion of the scraping gear 2 is immersed in the oil 0.

A defoaming device 3 is provided above the scraping gear 2.
Is provided, and an intake 4 is further disposed below the
An oil conduit 5 is connected to the intake port 4, and the oil conduit 5 is appropriately opened to the lubrication section side. When the scraping gear 2 is rotated, the oil 0 stored in the oil reservoir 1 is scraped upward in the direction of the arrow with the rotation, and is supplied into the intake port 4 through the defoaming device 3. .

The defoaming device 3 can have a structure as shown in FIG. 2, and is constituted by disposing a wire net 7 in a holding frame 6 framed in a square shape, and is scraped up. In the process in which the oil passes through the wire mesh 7, air bubbles mixed into the oil are crushed and eliminated.

As shown in FIG. 3, the defoaming device 3 may have a structure in which a large number of rectifying plates 8 are provided in parallel in a holding frame 6, so that the oil flows between the rectifying plates 8 while the oil flows between the rectifying plates 8. Air bubbles in the oil are eliminated.

Further, as shown in FIG. 4, the defoaming device 3 can be integrally assembled with the intake 4 so that the intake 4 is formed in a square shape, and a suitable number of If the flow straightening plates 9, 9, 9 are arranged and the oil is dropped from the scraping gear 2 toward the current straightening plate 9, bubbles in the oil are eliminated during the passage through the current straightening plate 9. . The number of the wire meshes 7 and the number of the current plates 8 can be appropriately changed.

FIG. 5 is a graph showing the amount of oil supplied to the lubricating section in comparison between the structure provided with such a defoaming device 3 and the conventional structure shown in FIG. That is, when the defoaming device 3 is provided, as shown by the line A, the amount of oil supplied to the lubricating portion through the oil conduit 5 increases even if the rotation of the scraping gear 2 increases, but the line B In the conventional structure shown by (1), when the rotation of the scraping gear 2 increases, the amount of oil supplied to the lubricating unit decreases extremely due to the incorporation of bubbles.

[0012]

The present invention has an oil sump, a scraping gear that can be scraped up by rotating the oil in the oil sump, and an intake for taking in the oil scooped up by the scraping gear. In a lubrication structure for a manual transmission provided with an oil conduit, the intake is formed in a square shape.
Inside the machine, along the direction of oil drop.
A flow plate is provided and above the inlet
Has a wire mesh installed in a rectangular holding frame.
By that, even if air bubbles in the scooped up increased rotation of the scraping up gear oil is mixed wire mesh, air bubbles are erased in the course of passing through the current plate, because the oil in the absence of air bubbles flowing in the oil conduit This has the effect that the amount of oil supplied to the lubricating portion can be sufficiently ensured.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a lubrication structure of a manual transmission.

FIG. 2 is a perspective view of a defoaming device.

FIG. 3 is a perspective configuration diagram showing another example of the defoaming device.

FIG. 4 is a perspective configuration diagram showing a modified example in which a current plate is integrally attached to an inlet.

FIG. 5 is a relationship diagram showing the relationship between the rotation of a scraping gear and the amount of supplied oil in a comparison between a case where a defoaming device is provided and a case where no defoaming device is provided.

FIG. 6 is a schematic configuration diagram of a conventional manual transmission lubrication structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Oil reservoir 2 Raising gear 3 Defoaming device 4 Inlet 5 Oil conduit 6 Holding frame 7 Wire mesh 8, 9 Rectifier plate

Claims (1)

(57) [Scope of request for utility model registration] 1. An oil reservoir, a scraping gear capable of being scraped by rotating the oil in the oil reservoir, and an oil conduit having an intake for taking in the oil scraped by the scraping gear. In the lubrication structure for a manual transmission provided with the above, the intake is formed in a square shape, and
Multiple rectifying plates are arranged along the oil drop direction in the section
And above the inlet, a square
A lubricating structure for a manual transmission , wherein a wire mesh is disposed in a framed holding frame .