JP2003021220A - Stator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a notch type stator 1 having a slide plate 9 built therein for regulating rising action of a strut 5 in racing capable of sufficiently supplying lubricating oil to a sliding part of a notch plate and the slide plate 9 for smooth operation of the sliding part. SOLUTION: The notch type stator 1 has the slide plate 9 regulating rising action of the strut 5 in racing of the stator 1 relatively rotatably built in between a stator body 2 and the notch plate and has a recess part 11 regulating rotation angles of the slide plate 9 relative to the stator body 2 provided on a pocket part forming surface 2a of the stator body 2. A first hydraulic passage 13 communicating with the recess part 11 and a second hydraulic passage 14 communicating the recess part 11 with an inner diameter part 2b of the pocket part forming surface 2a are provided on the pocket part forming surface 2a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator used in a torque converter of an automatic transmission for automobiles, and more particularly to a notch type stator.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 8 to 12, a stator body 2 and a notch plate 3, both of which are annular parts, are coaxially combined with each other so as to be relatively rotatable. The strut 5 is urged by a spring 6 to a recessed pocket portion (also referred to as an accommodating recess) 4 provided in the forming surface 2a so that the strut 5 can be moved up and down. A notch-type stator 1 is known in which a one-way clutch 8 is configured by engaging a notch portion (also referred to as an engaging recess) 7 having a one-way inclined surface 7a provided on a notch portion forming surface 3a. .

In this type of notch type stator 1, in order to prevent the strut 5 from interfering with the notch plate 3 during its idling, as shown in FIGS. 9 to 12, the facing surfaces of the stator body 2 and the notch plate 3 are opposed to each other. 2a,
It is conceivable to interpose a slide plate 9 which is also an annular component between 3a. In this case, the slide plate 9 is provided with a notched window portion (also referred to as an opening portion) 10 as shown in FIG. 10, and the slide plate 9 is provided with a stator main body 2 within a predetermined angular range (∠θ ₀ ). Are combined so that they can be displaced relative to each other in the circumferential direction. The angle of the relative displacement is regulated by engaging a protrusion (not shown) provided on the facing surface of the slide plate 9 with a recess 11 provided on the facing surface 2a of the stator main body 2 at a predetermined play angle in the circumferential direction. It is done by combining. The slide plate 9 slides on the stator main body 2 when the stator main body 2 rotates, and follows the stator main body 2 due to frictional resistance generated at this time.

According to the stator 1 to which the slide plate 9 is added, the relative position of the window portion 10 of the slide plate 9 and the strut 5 in the circumferential direction coincides with each other when locked, as shown in FIG. , The front of the strut 5 (upper side in the figure) is opened, and the strut 5 moves up and engages with the engaging recess 7 of the notch plate 3. Further, during idling in the opposite direction, as shown in FIG. 12, the relative positions of the windows 10 of the slide plate 9 and the struts 5 in the circumferential direction shift, so that the struts 5 are covered by the slide plates 9 and the front of the struts 5 is covered. Is blocked.
Therefore, the stator body 2, the struts 5, the slide plate 9 and the notch plate 3 rotate relative to each other in the state shown in FIG. 12, so that the strut 5 is prevented from interfering with the notch plate 9.

However, according to the stator 1 to which the slide plate 9 is added, the notch plate 3 and the slide plate 9 slide to a considerable extent when the stator is idle as shown in FIG. 12 (the notch plate 3 is fixed and the stator body 2 is rotating). However, there is a risk that the lubrication will be insufficient.

[0006]

In view of the above points, the present invention is a notch type stator incorporating a slide plate for restricting the rising movement of the strut when the stator is idling, and the notch plate slides between the slide plate. It is an object of the present invention to provide a stator that can sufficiently supply lubricating oil to parts and that can smoothly operate the sliding part and the one-way clutch.

[0007]

In order to achieve the above object, the stator according to claim 1 of the present invention has a slide plate for restricting the rising motion of the strut of the one-way clutch between the stator body and the notch plate when the stator is idling. Incorporating relative rotation into the
A notch-type stator having a recess for restricting a relative rotation angle of the slide plate with respect to the stator body, the first oil passage communicating with the recess, the recess, and the first oil passage. A second oil passage communicating with the inner diameter portion of the pocket portion forming surface is provided on the pocket portion forming surface.

According to a second aspect of the present invention, in the stator according to the first aspect, the first oil passage communicates with the recess at one end and communicates with the pocket portion at the other end. It is characterized by that.

In the stator according to claim 1 of the present invention having the above-mentioned structure, the above-described structure forms the oil (ATF) flow path through the first oil passage, the recess and the second oil passage. It is possible to sufficiently lubricate the sliding portion between the notch plate and the slide plate by the oil flowing in this flow path. The oil may flow in the order of the second oil passage, the recess, and the first oil passage.

In addition to this, in the stator according to claim 2 of the present invention having the above-mentioned configuration, since the first oil passage communicates with the pocket portion at the other end, the pocket portion also has an oil passage. Will be added to.

The present application includes the following technical matters.

That is, in order to achieve the above object, one stator proposed by the present application is a notch type stator assembly (A) in which a slide plate having a function of restraining the rising motion of the struts when the stator is idling is incorporated.
ss'y), an oil passage that is not continuous from the pocket portion that is continuous to the recess that limits the movement range in the rotational direction of the slide plate that is set on the same surface as the pocket portion forming surface,
Further, the invention is characterized in that an oil lubrication passage communicating from the concave portion to the inner diameter side is formed.

Further, in order to achieve the above object, another stator proposed by the present application is a notch type stator assembly in which a slide plate having a function of restraining a rising motion of a strut when the stator is idling is incorporated. (A
In ss'y), an oil passage communicating from the pocket portion that is continuous to the concave portion that limits the movement range in the rotation direction of the slide plate that is set on the same plane as the pocket portion forming surface, and further from the concave portion to the inner diameter side. It is characterized in that a perforated oil lubrication path is formed.

The embodiments of both inventions are as follows.

(1) In order to secure the oil passage, an oil passage communicating from the concave portion provided to limit the moving range of the slide plate in the rotation direction to the inner diameter side is formed. The oil passage is
It is connected to an oil passage formed on the stator cylindrical surface (inner diameter surface that serves as a guide portion of the notch plate cylindrical surface).

(2) At the same time, an oil passage communicating with a recess provided to limit the range of movement of the slide plate in the rotational direction is formed in the oil passage not communicating with the pocket portion, or the oil passage extending to the pocket portion is formed. An oil passage communicating with a recess provided to limit the range of movement of the slide plate in the rotation direction is formed by the oil passage communicating with the oil passage.

(3) The oil entering the oil passage is an oil passage between the notch plate and the support plate, an oil passage between the stator inner diameter portion and the notch plate, or an oil passage penetrating from the back surface of the notch plate to the notch portion. Both will pass through.

(4) The oil that has entered the oil passage flows to the notch forming surface of the notch plate and is lubricated in the rotational direction. Further, the discharge flows from the opening of the slide plate through the oil passage formed on the same surface of the pocket portion, to the recess that limits the moving range of the slide plate, and through the oil passage communicating from the recess to the inner diameter side. , The passage through the oil passage on the inner diameter surface, which serves as the guide portion of the cylindrical portion of the notch plate.

(5) In some cases, the route is the reverse.

(6) The material of the stator body includes both resin and aluminum.

(7) The material of the slide plate is not particularly limited, but it is desirable that SPCC or the like is subjected to surface treatment such as gas soft nitriding treatment.

(8) With the above construction, oil can be supplied between the slide plate and the notch plate, and wear of the slide plate can be prevented, so that the operation of the one-way clutch can be made smooth.

(9) Further, in the case of forming an oil passage communicating from the pocket portion, the oil in the pocket portion can be circulated, and therefore, it is expected that the wear between the strut and the pocket portion can be reduced.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

First Embodiment FIG. 1 shows a front view of a stator 1 according to the first embodiment of the present invention, and an enlarged sectional view taken along the line AOA is shown in FIG. There is. 3 is a view of the support plate 12 and the notch plate 3 removed from the direction of the arrow B in FIG. 2, and FIG. 4 shows the support plate 12, the notch plate 3, the slide plate 9, the struts 5 and the spring 6 removed. 2 is a view of the stator body 2 alone in the state of FIG. 2 as viewed in the direction of arrow B (front view of the stator body 2 alone), FIG.
FIG. 6 is an enlarged cross-sectional view taken along the line CC of FIG.

In the stator 1 according to this embodiment, a stator body 2 and a notch plate 3 which are both annular components are coaxially combined so as to be relatively rotatable (the stator body 2 is the rotating side and the notch plate 3 is the fixed side). The strut 5 is urged by the spring 6 into the pocket portion (also referred to as a housing recess) 4 provided on the facing surface (also referred to as a pocket portion forming surface) 2a of the stator main body 2 so that the strut 5 is assembled so that it can move up and down. One-way inclined surface 7 provided on the opposing surface (also referred to as a notch portion forming surface) 3a of the latter notch plate 3.
A notch type stator in which a one-way clutch 8 is configured by engaging a notch portion (also referred to as an engaging recess) 7 with a, which is compared with the stator 1 with the slide plate 9 shown in FIGS. 8 to 12 above. Then, the following points are further improved.

That is, first, on the pocket portion forming surface 2a of the stator main body 2, in addition to the pocket portion 4 and the recess 11 being respectively provided, the first oil passage 13 communicating with the recess 11 is provided. A second oil passage 14 is provided that connects the recess 11 and the inner diameter portion (inner peripheral edge portion) 2b of the pocket portion forming surface 2a.

The first oil passage 13 is provided as a groove or notch on one side in the circumferential direction with respect to the recess 11, and more specifically, from the recess 11 in the idling rotation direction of the stator body 2. It is provided as a groove or a notch that extends toward. One end 13a of the oil passage 13 reaches the recess 11 and communicates with the recess 11, but the other end 13b does not reach the pocket 4 and does not communicate with the pocket 4. The oil passage 13 is formed so that the other end 13b side is gradually narrowed and shallow.

The second oil passage 14 is provided as a groove or notch inward of the recess 11 in the radial direction, and more specifically, inward of the stator body 2 in the radial direction from the recess 11. It is provided as a groove or a notch extending toward. One end 14a of this oil passage 14 is provided with the recess 11
On the other hand, the other end 14b reaches the inner diameter portion 2b of the pocket portion forming surface 2a and is opened to the inner circumference of the stator body 2.

The pocket portion 4 and the recessed portion 11 are provided in a plurality (three places in the figure) in the circumferential direction at equal intervals, and are arranged in a uniform pattern. A plurality of paths 13 and 14 (three locations in the figure) are also provided in a circumferentially-spaced manner at regular intervals.

In the stator 1 having the above structure, when operating, an oil passage (not shown) between the notch plate 3 and the support plate 12, an oil passage between the inner diameter portion of the stator main body 2 and the outer diameter portion of the notch plate 3 (FIG. (Not shown) or the oil passage 15 (see FIG. 2) penetrating from the back surface of the notch plate 3 to the notch portion 7 or both, the sliding portion of the notch plate 3 and the slide plate 9, and the notched window portion provided in the slide plate 9. 10, a sliding portion of the slide plate 9 and the pocket portion forming surface 2a of the stator main body 2, a first oil passage 13, a recess 11, a second oil passage 14, and a guide portion for the notch plate 3 cylindrical portion. Since a flow path of oil (ATF) passing through the oil passage 16 (see FIG. 2) on the inner diameter surface of the stator body 2 is formed, the oil flowing in this flow passage causes Tchipureto 3 and the sliding portion of the slide plate 9 can be sufficiently lubricated. Therefore, it is possible to suppress sliding wear of the notch plate 3 or the slide plate 9, and it is possible to smooth the operation of the one-way clutch 8.

Second Embodiment In the first embodiment, as shown in FIGS. 4 and 5, the first oil passage 13 does not reach the pocket portion 4 at the other end 13b. Although it is provided so as not to communicate with the pocket portion 4, instead of this, as shown in FIGS. 6 and 7, the first oil passage 13 reaches the pocket portion 4 at the other end 13b and communicates with the pocket portion 4. The pocket portion 4 is added to a part of the oil flow path. Therefore, as the oil flows, the oil in the pocket portion 4 is constantly replaced with a new one, so that the lubrication effect is enhanced. Can be effectively prevented.

[0033]

The present invention has the following effects.

That is, first, in the stator according to claim 1 of the present invention having the above structure, the first oil passage communicating with the concave portion and the second oil passage communicating with the inner diameter portion of the concave portion and the pocket portion forming surface. Is provided on the pocket portion forming surface, an oil passage is formed through the first oil passage, the recess and the second oil passage, and the notch plate and the slide plate are formed by the oil flowing through the passage. It is possible to sufficiently lubricate the sliding portion of the. Therefore, sliding wear of the notch plate or the slide plate can be suppressed, and the operation of the one-way clutch can be smoothed.

In addition to this, in the stator according to claim 2 of the present invention having the above-mentioned structure, since the first oil passage communicates with the pocket portion at the other end, the pocket portion has an oil flow. Added to the road. Therefore, the oil in the pocket portion is constantly replaced with new oil to enhance the lubrication effect, so that it is possible to effectively prevent sliding wear of the struts that slide with each other during operation or the inner surface of the pocket portion.

[Brief description of drawings]

FIG. 1 is a front view of a stator according to a first embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line AOA in FIG.

FIG. 3 is a view in the direction of arrow B in FIG. 2 with a support plate and a notch plate removed.

FIG. 4 is a view in the direction of arrow B in FIG. 2 of the stator main body alone with the support plate, notch plate, slide plate, struts and springs removed.

5 is an enlarged cross-sectional view taken along the line CC in FIG.

FIG. 6 is a front view of a single stator body of the stator according to the second embodiment of the present invention.

7 is an enlarged sectional view taken along line DD in FIG.

FIG. 8 is a front view of a conventional stator with a slide plate attached.

9 is an enlarged cross-sectional view taken along the line EE in FIG.

FIG. 10 is a view in the direction of arrow F in FIG. 9 with a support plate and a notch plate removed.

11 is an enlarged cross-sectional view taken along line GG in FIG.
Sectional view showing the locked state of the one-way clutch

12 is an enlarged sectional view taken along line GG in FIG.
Sectional view showing the idling state of the one-way clutch

[Explanation of symbols]

1 Notch type stator 2 Stator body 2a Pocket part formation surface 2b inner diameter 3 notch plate 3a Notch part forming surface 4 pockets 5 struts 6 spring 7 Engagement recess 7a One-way inclined surface 8 one-way clutch 9 slide plate 10 windows 11 recess 12 Support plate 13 First oil passage 14 Second oil passage 15,16 Other oil passages

Claims (2)

[Claims] 1. A slide plate (9) for restricting a rising motion of a strut (5) of a one-way clutch (8) when the stator is idling is incorporated between a stator body (2) and a notch plate (3) so as to be relatively rotatable. At the same time, a notch type stator (1) is provided with a recess (11) for restricting a relative rotation angle of the slide plate (9) with respect to the stator body (2) on a pocket portion forming surface (2a) of the stator body (2). A second oil passage communicating with the first oil passage (13) communicating with the recess (11) and the inner diameter portion (2b) of the recess (11) and the pocket portion forming surface (2a). (14) are provided on the pocket portion forming surface (2a). 2. The stator according to claim 1, wherein the first oil passage (13) has a recess (1) at one end (13a) thereof.
A stator which communicates with 1) and communicates with the pocket portion (4) at the other end (13b).