Oil path device

Abstract

The utility model relates to an oil way device capable of limiting a filter device to move in the intersecting direction intersecting with the axial direction of a cylindrical part. In the oil passage device, in the bottomed cylindrical filter device, the bottomed cylindrical filter device is provided with a first plane part and a second plane part on one axial side of the filter device, and the first plane part and the second plane part are different in position in the axial direction and intersect with the axial direction. And a first outer peripheral surface part and a second outer peripheral surface part which are located at different positions in an intersecting direction intersecting the axial direction and are along the axial direction, and one of the first outer peripheral surface part and the second outer peripheral surface part is limited by the plate or the oil passage groove to move in the intersecting direction. Either the first planar portion or the second planar portion is limited by the plate to move in the axial direction.

Description

Technical Field

[0001] The technology disclosed herein relates to an oil circuit device. Background Art

[0002] Conventional oil circuit devices include: an upper body and a lower body; a metal partition disposed between the upper body and the lower body; and a filter element disposed in the lower body, the upper surface of which is magnetically adsorbed to the surface of the partition facing the lower body (Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2013-78739

[0006] However, in the oil passage device of Patent Document 1, the upper surface of the filter member is only attracted to the surface of the partition plate facing the lower body by magnetic force, and no mounting positioning portion is provided. Therefore, the mounting position of the filter member may be shifted in the horizontal direction due to vibration or the like. Utility Model Content

[0007] The technology disclosed in the present invention has been accomplished in view of the above-mentioned circumstances, and an object thereof is to provide an oil passage device capable of restricting movement of a filter device in a direction intersecting the axial direction.

[0008] In order to achieve the above-mentioned purpose, the oil circuit device of the first mode of the technology disclosed in the present invention comprises: a main body, which has an oil circuit groove with a filter housing; a plate-shaped plate, which overlaps in the thickness direction of the main body and blocks the oil circuit groove; and a bottomed cylindrical filter device, which is arranged in the filter housing and contacts the plate, the bottomed cylindrical filter device having a first plane portion and a second plane portion on one axial side of the bottomed cylindrical filter device, which are in different axial positions and intersect with the axial direction, and also having a first outer peripheral surface portion and a second outer peripheral surface portion which are in different positions in a cross direction intersecting with the axial direction and along the axial direction, either one of the first outer peripheral surface portion and the second outer peripheral surface portion is restricted by the plate or the oil circuit groove to move in the cross direction, and either one of the first plane portion and the second plane portion is restricted by the plate to move in the axial direction.

[0009] The first aspect of the technology disclosed herein can restrict movement of the filter device in a direction intersecting with the axial direction of the cylindrical portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a diagram showing an example of a part of the oil passage device 10 according to the first embodiment.

[0011] Figure 2It is a cross-sectional view of an example of the main body 18 and the plate 16 .

[0012] Figure 3 This is a side view of an example of a bottomed cylindrical filter device 20 and a biasing member.

[0013] Figure 4 1 is a diagram showing an example of the oil passage device 10 .

[0014] Figure 5 yes Figure 4 AA section view.

[0015] Figure 6 This is a diagram showing an example of the oil passage device 50 according to the second embodiment.

[0016] Figure 7 1 is a cross-sectional view of an example of the main body 18 and the plate 16 according to the third embodiment.

[0017] Figure 8 This is a diagram showing an example of an oil passage device 70 according to the third embodiment.

[0018] (Explanation of symbols)

[0019] 10 oil circuit device; 12 filter storage portion; 18 main body; 16 plate; 14 through hole; 22 first cylindrical portion; 24 second cylindrical portion; 26 columnar portion; 14s inner circumferential surface; 16s surface; 18s inner circumferential surface; 22ra surface; 26rh outer circumferential surface. DETAILED DESCRIPTION

[0020] Hereinafter, embodiments of the technology disclosed herein will be described with reference to the drawings.

[0021] In the following, for the sake of convenience, three mutually orthogonal axes are set as the X-axis, the Y-axis, and the Z-axis. The Z-axis direction is the "axis D direction". The "axis D direction" refers to a general term for one direction and another direction of an imaginary axis that is orthogonal to the bottom surface of the bottomed cylindrical filter device 20 described later and passes through the center of the bottomed cylindrical filter device 20. In addition, the Z-axis direction is also the thickness direction of the main body 18 described later.

[0022] The Z-axis direction and the axis D direction are examples of the “axial direction” of the technology of the present disclosure.

[0023] In addition, as an example, the XY plane including the X-axis and the Y-axis is horizontal, and the Z-axis is vertical. For example, the X-axis direction is the width direction of the oil passage device 10 described later. The Y-axis direction is the depth direction of the oil passage device 10. The Z-axis direction is the height direction of the oil passage device 10.

[0024] In this specification, the vertical direction, horizontal direction, upper side, and lower side are terms used only to describe the relative positional relationship of each part. Therefore, the actual positional relationship of each part may be different from the positional relationship indicated by these terms.

[0025] [First embodiment]

[0026] A first embodiment will be described.

[0027] Figure 1 This is a diagram showing an example of a part of the oil passage device 10 according to the first embodiment. Figure 2 It is a cross-sectional view of an example of the main body 18 and the plate 16 . Figure 3 It is a side view of an example of the bottomed cylindrical filter device 20 and the urging member 30 . Figure 4 1 is a diagram showing an example of the oil passage device 10 . Figure 5 yes Figure 4 AA section view. In addition, Figure 1 and Figure 4 In FIG. 1 , the main body 18 and the plate 16 are shown in cross section, and the bottomed cylindrical filter device 20 and the urging member 30 are shown in side view.

[0028] (structure)

[0029] like Figure 1 and Figure 2 As shown, the oil passage device 10 includes a main body 18 , and the main body 18 includes an oil passage groove having a filter housing portion 12 .

[0030] The oil passage device 10 includes a plate-like plate 16, which is overlapped in the thickness direction (i.e., the Z-axis direction) of the main body 18 and blocks the oil passage groove. The plate 16 includes a through hole 14. The through hole 14 includes a cylindrical space having an axis D. The through hole 14 includes an inner peripheral surface 14s. The plate 16 includes a surface 16s on the filter storage portion 12 side.

[0031] like Figure 1 , Figure 3 and Figure 4 As shown, the oil passage device 10 includes a bottomed cylindrical filter device 20 which is arranged in the filter housing portion 12 and in contact with the plate 16 .

[0032] The bottomed cylindrical filter device 20 includes a first cylindrical portion 22, a second cylindrical portion 24, and a cylindrical portion 26 arranged so that their central axes coincide with the axis D. The second cylindrical portion 24 is arranged adjacent to the negative side in the Z-axis direction of the first cylindrical portion 22. The cylindrical portion 26 is arranged at a predetermined distance from the second cylindrical portion 24 on the negative side in the Z-axis direction.

[0033] The first cylindrical portion 22 has a surface 22ra on the plate 16 side. The surface 22ra on the plate 16 side is in contact with the surface 16s on the filter storage portion 12 side of the plate 16. The first cylindrical portion has an outer peripheral surface 22rh. The first cylindrical portion 22 and the second cylindrical portion 24 have a cylindrical space. The cylindrical space of the first cylindrical portion 22 and the second cylindrical portion 24 is connected to the cylindrical space of the through hole 14 of the plate 16. The cylindrical portion 26 is not hollow. The cylindrical portion 26 has an outer peripheral surface 26rh. The outer diameter of the first cylindrical portion 22 is smaller than the outer diameter of the second cylindrical portion 24. The second cylindrical portion 24 has a surface 24ra on the plate 16 side. The outer diameter of the second cylindrical portion 24 is smaller than the outer diameter of the cylindrical portion 26. The negative side end of the cylindrical portion 26 in the Z direction has a bottom surface.

[0034] The surface 22ra of the first cylindrical portion 22 on the plate 16 side and the surface 24ra of the second cylindrical portion 24 on the plate 16 side are located on one side in the direction of the axis D of the bottomed cylindrical filter device ( Figure 1 The surface 22ra and the surface 24ra are located at different positions in the direction of the axis D. The surface 22ra and the surface 24ra are located at different positions in the direction of the axis D. The surface 22ra and the surface 24ra are restricted from moving in the axial direction by the plate 16.

[0035] The surface 22ra of the first cylindrical portion 22 on the plate 16 side is an example of the "first flat surface portion" of the technology disclosed herein. The surface 24ra of the second cylindrical portion 24 on the plate 16 side is an example of the "second flat surface portion" of the technology disclosed herein.

[0036] The outer peripheral surface 22rh of the first cylindrical portion 22 and the outer peripheral surface 26rh of the columnar portion 26 are located at different positions in the intersecting direction intersecting the axis D direction and are along the axis D direction. Either the outer peripheral surface 22rh or the outer peripheral surface 26rh is restricted from moving in the intersecting direction by the plate 16 or the oil passage groove (filter housing portion 12).

[0037] The outer peripheral surface 22rh of the first cylindrical portion 22 is an example of the “first outer peripheral surface” of the technology disclosed herein. The outer peripheral surface 26rh of the cylindrical portion 26 is an example of the “second outer peripheral surface” of the technology disclosed herein.

[0038] The bottomed cylindrical filter device 20 includes a plurality of pillars 27 disposed between the second cylindrical portion 24 and the columnar portion 26 and each having the predetermined distance, and a mesh portion 28 installed between adjacent pillars 27 .

[0039] like Figure 3 As shown, the bottomed cylindrical filter device 20 is located on the lower side (negative side in the Z-axis direction (see Figure 1)) has a spring contact portion 29 that contacts the positive side in the Z-axis direction of the urging member 30. The positive side end in the Z-axis direction of the urging member 30 contacts the bottom wall of the cylindrical portion 26 of the bottomed cylindrical filter device 20.

[0040] The filter device 20 is made of, for example, a resin material except for the mesh portion 28. The mesh portion 28 is made of, for example, a nylon mesh or a stainless steel mesh.

[0041] Figure 1 2 shows the flow F1 of the working oil. As in the flow F1 of the working oil, the working oil enters the cylindrical space of the first cylindrical portion 22 and the second cylindrical portion 24 from the filter housing 12 through the mesh portion 28, flows toward the positive side in the Z-axis direction, and is discharged from the through hole 14 of the plate 16. Even if the working oil entering the cylindrical space of the first cylindrical portion 22 and the second cylindrical portion 24 from the filter housing 12 contains foreign matter, the foreign matter is captured and removed by the mesh portion 28.

[0042] like Figure 2 and Figure 5 As shown, the filter housing 12 includes a first cylindrical space 180A. Figure 2 As shown, the filter housing portion 12 includes a second cylindrical space 180B located on the negative side of the first cylindrical space 180A in the Z-axis direction. The inner diameter of the first cylindrical space 180A is larger than the inner diameter of the second cylindrical space 180B.

[0043] The filter housing 12 includes an inner peripheral surface 18s that partitions the first cylindrical space 180A. The inner diameter of the inner peripheral surface 18s is larger than the outer diameter of the second cylindrical portion 24, but is consistent with the outer diameter of the outer peripheral surface 26rh of the cylindrical portion 26 (see also Figure 1 and Figure 5 ). In addition, Figure 1 , Figure 4 , Figure 5 In order to facilitate understanding of each component, a gap is shown between the inner peripheral surface 18s and the outer peripheral surface 26rh, but in fact, the inner peripheral surface 18s and the outer peripheral surface 26rh are in contact.

[0044] The second cylindrical space 180B contains a biasing member 30 such as a coil spring. The biasing member 30 biases the bottomed cylindrical filter device 20 toward the positive side in the Z-axis direction.

[0045] At least one of the main body 18 and the plate 16 of the oil passage device 10 includes a plurality of intersecting direction movement restricting portions that restrict movement of the bottomed cylindrical filter device 20 in a direction intersecting the axis D direction of the cylindrical portion 26 .

[0046] Here, the intersecting direction is a direction parallel to a plane intersecting the axis D. For example, the intersecting direction is not a direction having components in the X-axis direction, the Y-axis direction, and the Z-axis direction, but a direction having components only in the X-axis direction and the Y-axis direction.

[0047] The bottomed cylindrical filter device 20 includes at least one cross-direction movement restricted portion, the cross-direction movement restricted portion being restricted from moving in the cross-direction by at least one cross-direction movement restricting portion among a plurality of cross-direction movement restricting portions.

[0048] Specifically, one of the plurality of cross-direction movement restricting portions is the inner peripheral surface 18s of the cylindrical space 180 of the filter housing 12 , and the cross-direction movement restricted portion is the outer peripheral surface 26rh of the cylindrical portion 26 .

[0049] The plate 16 includes an axial movement restricting portion that restricts axial movement of the bottomed cylindrical filter device 20. The axial direction is the direction of the axis D and is also the Z-axis direction.

[0050] The bottomed cylindrical filter device 20 includes an axial movement restricted portion whose axial movement is restricted by the axial movement restricting portion.

[0051] Specifically, the axial movement restricting portion is a surface 16s on the filter housing portion 12 side of the plate 16 , and the axial movement restricted portion is a surface 22ra on the plate 16 side of the first cylindrical portion 22 of the bottomed cylindrical filter device 20 .

[0052] like Figure 1 and Figure 5 As shown, the outer peripheral surface 26rh of the cylindrical portion 26 is fitted into the inner peripheral surface 18s of the first cylindrical space 180A of the filter housing 12. Therefore, the movement of the outer peripheral surface 26rh of the cylindrical portion 26 in the cross direction is restricted by the inner peripheral surface 18s of the cylindrical space 180 of the filter housing 12. Thus, the movement of the bottomed cylindrical filter device 20 in the cross direction is restricted.

[0053] The surface 22ra of the first cylindrical portion 22 of the bottomed cylindrical filter device 20 on the plate 16 side contacts the surface 16s of the filter housing portion 12 side of the plate 16. As described above, the force applying member 30 applies force to the bottomed cylindrical filter device 20 toward the positive side in the Z-axis direction. Therefore, the surface 16s of the filter housing portion 12 side of the plate 16 restricts the movement of the surface 22ra of the plate 16 side of the bottomed cylindrical filter device 20 in the Z-axis direction. Thus, the movement of the bottomed cylindrical filter device 20 in the Z-axis direction is restricted.

[0054] However, when the inner diameter of the inner peripheral surface 14s of the through hole 14 of the plate 16 matches the outer diameter of the outer peripheral surface 22rh of the first cylindrical portion 22, the first cylindrical portion 22 is inserted into the through hole 14 of the plate 16. In this case, the inner peripheral surface 14s of the through hole 14 of the plate 16 restricts the movement of the outer peripheral surface 22rh of the first cylindrical portion 22 in the intersecting direction.

[0055] Therefore, the inner peripheral surface 14 s of the through hole 14 of the plate 16 and the inner peripheral surface 18 s of the cylindrical space 180 of the filter housing 12 restrict the movement of the bottomed cylindrical filter device 20 in the intersecting direction.

[0056] In this way, the main body 18 and the plate 16 each have a cross-direction movement restricting portion.

[0057] (Effect)

[0058] As described above, the first embodiment can restrict the movement of the filter device in the intersecting direction intersecting the axis D. Specifically, the inner peripheral surface 18s restricts the movement of the outer peripheral surface 26rh of the cylindrical portion 26 in the intersecting direction. Thus, the movement of the bottomed cylindrical filter device 20 in the intersecting direction is restricted.

[0059] In addition, the first embodiment can limit the movement of the filter device in the direction of the axis D. Specifically, the surface 16s on the filter housing portion 12 side of the plate 16 limits the movement of the surface 22ra on the plate 16 side of the first cylindrical portion 22 of the bottomed cylindrical filter device 20 in the direction of the axis D. As a result, the movement of the bottomed cylindrical filter device 20 in the Z-axis direction is limited.

[0060] (Modification of the first embodiment)

[0061] In the first embodiment, the inner diameter of the inner circumferential surface 14s of the through hole 14 of the plate 16 is inconsistent with the outer diameter of the outer circumferential surface 22rh of the first cylindrical portion 22. The technology disclosed in the present invention is not limited to this. For example, a filter device may be provided in which the outer diameter of the outer circumferential surface 22rh of the first cylindrical portion 22 is consistent with the inner diameter of the inner circumferential surface 14s of the through hole 14 of the plate 16. In this case, the inner circumferential surface 14s of the through hole 14 of the plate 16 restricts the movement of the outer circumferential surface 22rh of the first cylindrical portion 22 in the cross direction.

[0062] [Second embodiment]

[0063] Next, an oil passage device according to a second embodiment will be described.

[0064] (structure)

[0065] The configuration of the second embodiment includes the same configuration parts as those of the first embodiment, and therefore the same reference numerals are given to the same configuration parts and their description is omitted, and different parts will be described.

[0066] Figure 6 FIG. 2 is a diagram showing an example of an oil passage device 50 according to the second embodiment. Figure 6 As shown, the plate 16 of the oil passage device 50 has a through hole 140 having an inner diameter equal to the outer diameter of the first cylindrical portion 22 of the bottomed cylindrical filter device 20. The first cylindrical portion 22 of the bottomed cylindrical filter device 20 is fitted into the through hole 140 (cylindrical space) of the plate 16. In this case, the outer peripheral surface 22rh of the first cylindrical portion 22 is in contact with the inner peripheral surface 140s of the through hole 140 of the plate 16. In addition, the surface 24ra of the second cylindrical portion 24 on the plate 16 side is in contact with the surface 16s of the plate 16 on the filter housing portion 12 side.

[0067] The first cylindrical portion 22 is an example of a “fitting portion” in the technology disclosed herein.

[0068] The outer peripheral surface 26 rh of the cylindrical portion 26 does not fit into the inner peripheral surface 18 s of the first cylindrical space 180A of the filter housing portion 12 of the body 18 .

[0069] In addition, the structure and size of the bottomed cylindrical filter device 20 of the second embodiment are the same as the structure and size of the bottomed cylindrical filter device 20 of the first embodiment.

[0070] In the second embodiment, the hydraulic oil flows as shown by the oil flow F2 . Specifically, the hydraulic oil enters the cylindrical spaces of the first cylindrical portion 22 and the second cylindrical portion 24 from the through hole 140 of the plate 16 , and is discharged from the cylindrical spaces to the filter housing 12 through the mesh portion 28 .

[0071] (Effect)

[0072] In the second embodiment, the inner diameter of the inner circumferential surface 14s of the through hole 140 of the plate 16 is equal to the outer diameter of the outer circumferential surface 22rh of the first cylindrical portion 22. Therefore, the first cylindrical portion 22 is fitted into the through hole 140 of the plate 16. Therefore, the outer circumferential surface 22rh of the first cylindrical portion 22 is restricted from moving in the intersecting direction intersecting the axis D direction by the inner circumferential surface 140s of the through hole 140 of the plate 16. Therefore, the filter device can be restricted from moving in the intersecting direction.

[0073] In addition, when the first cylindrical portion 22 is fitted into the through hole 140 of the plate 16, the surface 24ra of the second cylindrical portion 24 on the plate 16 side is in contact with the surface 16s of the plate 16 on the filter housing portion 12 side. The surface 24ra of the second cylindrical portion 24 on the plate 16 side is restricted from moving in the direction of the axis D of the second cylindrical portion 24 by the surface 16s of the plate 16 on the filter housing portion 12 side. Therefore, the filter device can be restricted from moving in the direction of the axis D.

[0074] In addition, in the second embodiment, the plate 16 has a through hole 140 having an inner diameter equal to the outer diameter of the first cylindrical portion 22 of the bottomed cylindrical filter device 20, thereby allowing the oil circuit device 50 of the second embodiment to utilize a bottomed cylindrical filter device 20 having the same structure and size as the bottomed cylindrical filter device 20 of the first embodiment.

[0075] [Third Embodiment]

[0076] Next, a third embodiment of the technology of the present disclosure will be described.

[0077] (structure)

[0078] The configuration of the third embodiment includes the same configuration parts as those of the first embodiment, and therefore the same configuration parts are denoted by the same reference numerals and their description is omitted, and different parts will be described.

[0079] Figure 7 1 is a cross-sectional view showing an example of the main body 18 and the plate 16 of the third embodiment. Figure 8 This is a diagram showing an example of an oil passage device 70 according to the third embodiment.

[0080] The filter housing 12 has three or more cylindrical spaces with different inner diameters. Figure 7 As shown, there are three cylindrical spaces. The filter storage section 12 includes a first cylindrical space 118A. The filter storage section 12 includes a second cylindrical space 118B located on the negative side of the first cylindrical space 118A in the Z-axis direction. The filter storage section 12 includes a third cylindrical space 118C located on the negative side of the second cylindrical space 118B in the Z-axis direction. The inner diameter of the first cylindrical space 118A is larger than the inner diameter of the second cylindrical space 118B. The inner diameter of the second cylindrical space 118B is larger than the inner diameter of the third cylindrical space 1180C.

[0081] The through hole 14 of the plate 16 has a plurality of cylindrical spaces with different inner diameters. Figure 7As shown, there are three cylindrical spaces. The through hole 14 has a first cylindrical space 114A. The through hole 14 has a second cylindrical space 114B located on the negative side of the first cylindrical space 114A in the Z-axis direction. The through hole 14 has a third cylindrical space 114C located on the negative side of the second cylindrical space 114B in the Z-axis direction. The inner diameter of the first cylindrical space 114A is smaller than the inner diameter of the second cylindrical space 114B. The inner diameter of the second cylindrical space 114B is smaller than the inner diameter of the third cylindrical space 114C.

[0082] like Figure 8 As shown, the first cylindrical portion 22 of the oil passage device 70 of the present modification has an outer diameter that fits into any one of the plurality of cylindrical spaces of the through hole 14 , for example, the second cylindrical space 114B.

[0083] In addition, the fourth cylindrical portion 26 of the oil passage device 70 of the modified example has an outer diameter that is equal to the inner diameter of the third cylindrical space 118C of the filter housing portion 12 , for example.

[0084] like Figure 8 As shown, the cylindrical portion 26 is in contact with the bottom surface of the interior of the filter housing portion 12. Therefore, a biasing member is not required.

[0085] (Effect)

[0086] The third embodiment can restrict the movement of the filter device in the axis D direction and in the intersecting direction intersecting the axis D direction.

Claims

1. An oil circuit device, comprising: A main body having an oil passage groove having a filter receiving portion; a plate-like plate which overlaps in the thickness direction of the main body and blocks the oil passage groove; and a bottomed cylindrical filter device, the bottomed cylindrical filter device being arranged in the filter housing portion and in contact with the plate, It is characterized in that The bottomed cylindrical filter device has a first plane portion and a second plane portion at different positions in the axial direction and intersecting the axial direction on one axial side of the bottomed cylindrical filter device, and also has a first peripheral surface portion and a second peripheral surface portion at different positions in a direction intersecting the axial direction and along the axial direction, Either the first peripheral surface or the second peripheral surface is restricted from moving in the intersecting direction by the plate or the oil passage groove. Either the first flat surface portion or the second flat surface portion is restricted from moving in the axial direction by the plate.

2. The oil circuit device according to claim 1, It is characterized in that The plate has a through hole, The bottomed cylindrical filter device includes a fitting portion that fits into the through hole. The first outer peripheral surface portion is an outer peripheral surface of the fitting portion that is in contact with the through hole.

3. The oil circuit device according to claim 1 or 2, It is characterized in that The filter storage portion has a cylindrical space. The second outer peripheral surface portion is an outer peripheral surface of the bottomed cylindrical filter device that fits into the cylindrical space.

4. The oil circuit device according to claim 1 or 2, It is characterized in that The plate includes a surface facing the filter housing portion side of the filter housing portion, The first flat surface portion is a surface on the plate side that is in contact with a surface of the plate on the filter housing portion side.

5. The oil circuit device according to claim 1, It is characterized in that The plate includes a surface facing the filter housing portion side of the filter housing portion, The plate has a through hole, The bottomed cylindrical filter device includes a fitting portion that fits into the through hole. The bottomed cylindrical filter device includes a plate-side surface that contacts a surface on the filter housing side when the fitting portion is fitted in the through hole. The second plane portion is a surface on the plate side.

6. The oil circuit device according to claim 1, It is characterized in that A biasing member is further provided for biasing the bottomed cylindrical filter device in an axial direction along the thickness direction of the main body.

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