Lubricating oil purification device of transmission
阅读说明:本技术 变速器的润滑油净化装置 (Lubricating oil purification device of transmission ) 是由 寺岛幸士 于 2018-06-18 设计创作,主要内容包括:一种变速器的润滑油净化装置,该变速器在壳体的内部储存有润滑油,该润滑油净化装置中,在与被配置于壳体的内部的旋转体在径向上相对的壳体壁面上配置有净化润滑油的过滤器。(A lubricating oil purifying device for a transmission in which lubricating oil is stored in a casing, wherein a filter for purifying the lubricating oil is disposed on a casing wall surface facing a rotating body disposed in the casing in a radial direction.)
1. A lubricating oil purifying device for a transmission, which stores lubricating oil in a casing,
a filter for purifying the lubricating oil is disposed on a casing wall surface facing a rotating body disposed inside the casing in a radial direction.
2. The lubricating oil purifying apparatus for a transmission according to claim 1,
the filter is immersed in the lubricating oil at a lower portion thereof.
3. The lubricating oil purifying apparatus for a transmission according to claim 1 or 2,
an upper edge of the filter disposed on a side opposite to the rotation direction of the upper end of the rotating body is located above the upper end of the rotating body.
4. The lubricating oil purifying apparatus for a transmission according to any one of claims 1 to 3,
the rotating body includes:
a lower gear disposed at a lower stage, an
An upper gear disposed at an upper stage;
the above-mentioned filter includes:
a 1 st filter disposed on one side of an upper end of the lower stage gear which is opposite to the rotation direction, and
a 2 nd filter disposed to face the 1 st filter;
the upper edge of the 2 nd filter is positioned above the upper end of the lower gear;
the upper edge of the 1 st strainer is located above the upper edge of the 2 nd strainer and the upper end of the upper gear.
Technical Field
The present disclosure relates to a lubricating oil purification apparatus for a transmission that purifies lubricating oil stored inside the transmission.
Background
Conventionally, in a transmission in which a plurality of shafts and gears are disposed inside a case to transmit power, there is known a transmission in which lubricating oil is stored inside the case and supplied to the shafts and gears by, for example, stirring up the rotating gears.
Further, as for such a transmission, there is known one in which a lubricant purifying device that suppresses a failure due to deterioration of lubricant while extending the life of the lubricant is disposed inside a case (for example, see patent document 1).
In the lubricating oil purification apparatus disclosed in patent document 1, a filter for trapping and purifying (filtering) a part of the stirred lubricating oil is disposed inside the casing, and the filter is disposed on a stirring path of the lubricating oil that is not injected into the shaft or the gear among the oil stirred up by the gear.
Disclosure of Invention
Problems to be solved by the invention
However, in the transmission lubricating oil purification device disclosed in the prior art document, it is necessary to dispose a filter in the casing on a path where lubricating oil is stirred up, the lubricating oil not being injected into the shaft or the gear. Therefore, it is necessary to secure an arrangement space for arranging the filter in the narrow case, and it is difficult to efficiently collect the lubricating oil and the like stirred up by the plurality of gears.
In order to solve the above-described problems, an object of the present disclosure is to provide a transmission lubricating oil purifying apparatus capable of efficiently collecting lubricating oil stirred up by a plurality of gears while efficiently disposing a filter inside a narrow case.
Means for solving the problems
In order to achieve the above object, the technique of the present disclosure is directed to a lubricating oil purification device for a transmission in which lubricating oil is stored in a casing, wherein a filter for purifying the lubricating oil is disposed on a casing wall surface facing a rotating body disposed in the casing in a radial direction.
Further, it is preferable that, with respect to the filter, a lower portion thereof is immersed in the lubricating oil.
Preferably, an upper edge of the filter disposed on the opposite side of the upper end of the rotating body with respect to the rotation direction is located above the upper end of the rotating body.
Preferably, the rotating body includes a lower gear disposed at a lower stage, and an upper gear disposed at an upper stage, the filter includes a 1 st filter and a 2 nd filter, the 1 st filter is disposed on a side opposite to a rotation direction of an upper end of the lower gear, the 2 nd filter is disposed to face the 1 st filter, an upper edge of the 2 nd filter is located above the upper end of the lower gear, and an upper edge of the 1 st filter is located above the upper edge of the 2 nd filter and the upper end of the upper gear.
Effects of the invention
According to the technique of the present disclosure, the filter can be provided in the rotating body, and the filter can be efficiently disposed in the narrow casing, and the lubricating oil stirred up by the plurality of gears can be efficiently collected.
Brief description of the drawings
Fig. 1 is a sectional view of an example of a transmission to which a lubricating oil purifying device for a transmission according to the present embodiment is applied.
Fig. 2 is a schematic cross-sectional view of the transmission along the line a-a in fig. 1 to which the lubricating oil purifying apparatus of the transmission according to the present embodiment is applied.
Detailed Description
Hereinafter, a lubricating oil purification device for a transmission according to an embodiment of the present disclosure will be described with reference to the drawings. The same components are denoted by the same reference numerals, and the names and functions thereof are also the same. Therefore, detailed description thereof will not be repeated. For convenience of explanation, in fig. 1, the left side is referred to as an input side (one end side) in the power transmission direction, and the right side is referred to as an output side (the other end side) in the power transmission direction. In the following description, the vertical directions are the same as the vertical directions of the vehicle body when the vehicle body is mounted.
In the following description, the front, rear, left, right, up and down directions are the same as the front, rear, left, right, up and down directions observed by the driver when the vehicle travels forward. Therefore, the left-right direction is synonymous with the vehicle width direction. However, the front, rear, left, right, and up-down directions are not limited to the front, rear, left, right, and up-down directions in a strict sense. For example, the front, rear, left, and right directions are not limited to the horizontal plane, and the up-down directions are not limited to the vertical direction, and include the cases where each direction is expressed in terms of functionality.
The transmission 1 shown in fig. 1 includes an
The
The
The output shaft 4 is disposed coaxially with the
The
The
Various members constituting the driven gear group 11 and the
As shown in fig. 2, when the
As shown in fig. 1, the
Specifically, an opening 6c for supporting the
The transmission case 7 integrally has a
In this way, the
The components of the driven gear set 11, such as the
The
The primary driven
As shown in fig. 2, a through
The
As shown in fig. 2, filters 20 and 21 for purifying lubricant OL are disposed on both casing wall surfaces facing in the radial direction with respect to transmission gears 9(8) and 13(12) as rotating bodies disposed in the
The lower portions of the
The
In this way, in the lubricating oil purification device of the transmission 1 according to the present embodiment, the
Next, the operation of the lubricating oil purification device of the transmission 1 will be described. In the above configuration, the
When the
Here, the transmission gears 13 and 12 are left and right in the lower half portions thereof immersed in the lubricant OL stored in the
On the other hand, with regard to the speed change gears 9(8) and 13(12), for example, there are cases where: a part of the lubricant OL2 in the lubricant OL1 scraped off by the speed change gear 13(12) directly flies toward the radially opposed casing wall surface without reaching the speed change gear 9 (8). Further, on the downstream side in the rotational direction in which the ratio gear 9(8) meshes with the ratio gear 13(12), there are cases where: the lubricant OL3 mainly stirred by the speed change gears 9(8) directly flies toward the radially opposite casing wall surface. Further, the upper end side of the speed change gears 9(8) may be as follows: the lubricant OL4 stirred by the speed change gear 9(8) directly flies toward the radially opposite casing wall surface.
However, in the lubricating oils OL2 to OL4, the
Thus, the
Further, since the lower ends of the
The transmission oil purification apparatus according to the present disclosure is not limited to the above-described embodiments, and various modifications of design are included within the scope of the invention described in the claims.
For example, the height of the
The present application is based on japanese patent application published on 26/6/2017 (japanese patent application 2017-124456), the contents of which are incorporated herein by reference.
Industrial applicability
The present invention has an effect that a filter can be provided in a rotating body, and the filter can be efficiently disposed in the narrow casing, and that the lubricating oil stirred up by a plurality of gears can be efficiently collected, and is useful for a lubricating oil purification device for a transmission, and the like.
Description of the reference numerals
1 … speed variator
2 … input shaft
3 … Main shaft
4 … output shaft
5 … auxiliary shaft
6 … Clutch case (casing)
7 … speed variator box (casing)
8 … Primary driven gear (rotator)
9 … speed-changing gear (rotator)
12 … Primary Driving Gear (rotating body)
13 … speed-changing gear (rotator)
15 … storage space (inside of the casing)
20 … filter
21 … filter
OL … lubricating oil
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