JP2018063034A - Attachment structure of baffle plate - Google Patents

Abstract

An oil leakage is prevented from occurring at a connecting portion between an oil passage formed in a baffle plate and an oil passage formed in a peripheral element. In a mounting structure of a baffle plate 1 provided inside a case 3 that accommodates a power transmission device, the baffle plate 1 has a plate oil passage 2 formed therein and a supply port 21 opened. The case 3 includes a supply unit 101 whose back surface 101b opposite to the opening surface 101a is closed, and a discharge unit whose back surface opposite to the opening surface where the discharge port is open. A holding surface 7 that comes into contact with the back surface 101b of the part 101, a case side opening face 6 that is disposed around the baffle plate 1 and that is an oil passage connecting face that comes into contact with the opening face 101a of the supply part 101, A structure in which a first case member 31 in which a case oil passage 4 communicating with an outflow port 4 a that opens in the opening surface 6 is formed is provided, and the supply unit 101 is sandwiched between the case-side opening surface 6 and the holding surface 7. A. [Selection] Figure 4

Description

  The present invention relates to a baffle plate mounting structure.

  In Patent Document 1, in order to prevent the baffle plate provided in the case from rattling, the baffle plate is held in a state where a rubber member provided at an end of the baffle plate is in contact with the case wall surface. A structure is disclosed.

Japanese Patent No. 5733004

  By the way, since the baffle plate is a fixed element fixed inside the case, it is conceivable that an oil passage is provided in the baffle plate and the oil is pumped to the supply destination using the oil passage. When the oil passage is provided in this way, a load corresponding to the oil pressure of the oil pumped through the oil passage acts on the baffle plate. Therefore, the baffle plate is displaced by the hydraulic pressure, and there is a possibility that a gap is generated in the oil passage connection portion between the baffle plate and the peripheral element. However, in the configuration described in Patent Document 1, a baffle plate with an oil passage is not considered. Therefore, when a baffle plate with an oil passage is provided inside the case, it is desired to suppress oil leakage at an oil passage connection portion between the baffle plate and peripheral elements in consideration of the oil pressure of the oil.

  The present invention has been made in view of the above circumstances, and is provided with a baffle plate capable of suppressing oil leakage at a connecting portion between an oil passage formed in a baffle plate and an oil passage formed in a peripheral element. The purpose is to provide a structure.

  The present invention relates to a mounting structure of a baffle plate provided inside a case that houses a power transmission device, wherein the baffle plate includes a plate oil path that is an oil path formed inside the baffle plate, and the plate oil. A supply port for supplying oil to the passage, a supply portion having a closed back surface opposite to the opening surface where the supply port is open, and a discharge port for discharging oil in the plate oil passage. And a discharge portion whose back surface opposite to the opening surface where the discharge port is open is closed, and the case has a holding surface in contact with the back surface of the supply portion or the back surface of the discharge portion. An oil passage that is disposed around the baffle plate, has an oil passage connection surface that contacts the opening surface of the supply unit or the opening surface of the discharge unit, and communicates with a connection port that opens to the oil passage connection surface Formed Peripheral element is provided, at least the supply portion of the said supply unit and the discharge unit, characterized by having a are sandwiched structure and the oil passage connection faces by said holding surface.

  In the present invention, the baffle plate with an oil passage provided in the case has a structure in which at least the supply portion is sandwiched between the oil passage connection surface of the peripheral element and the holding surface of the case. Therefore, it is possible to restrict the displacement of the baffle plate by the oil pressure of the oil pumped through the plate oil passage by the holding surface of the case. Thereby, it can suppress that a clearance gap produces between the opening surface of a baffle plate, and the oil path connection surface of a peripheral element, and can suppress that oil leak arises in the connection part of an oil path.

FIG. 1 is a diagram schematically illustrating the baffle plate according to the first embodiment. FIG. 2 is a diagram showing a case of viewing from the A direction of FIG. FIG. 3 is a schematic diagram for explaining the mounting structure of the first embodiment. Fig.4 (a) is a figure for demonstrating the state before attaching a case. FIG. 4B is a diagram for explaining a state after the case is assembled. Fig.5 (a) is a figure for demonstrating the state by which the sealing performance in the oil-path connection part is ensured. FIG. 5B is a diagram for explaining a case where the baffle plate is displaced. FIG. 6 is a diagram schematically illustrating the baffle plate according to the second embodiment. FIG. 7 is a diagram showing a case when viewed from the direction C in FIG. FIG. 8 is a diagram for explaining an opening surface and a back surface of the supply unit. FIG. 9 is a view for explaining the opening surface and the back surface of the second discharge portion. FIG. 10 is a diagram schematically illustrating an example of a case. FIG. 11 is a view for explaining a connection port provided in the case member. FIG. 12 is a diagram schematically illustrating the attachment state of the supply unit. FIG. 13 is a diagram schematically showing an attachment state of the second discharge portion. FIG. 14 is a cross-sectional view for explaining the attachment state of the second discharge portion. FIG. 15 is a cross-sectional view for explaining a modification of the connection portion between the supply unit and the peripheral element.

  Hereinafter, a baffle plate mounting structure according to an embodiment of the present invention will be specifically described with reference to the drawings.

[1. First Embodiment]
The first embodiment will be described with reference to FIGS. First, the structure of the baffle plate will be described, and then the mounting structure will be described.

[1-1. Baffle plate]
FIG. 1 is a diagram schematically illustrating the baffle plate according to the first embodiment. FIG. 2 is a diagram showing a case as viewed from the direction A in FIG. A direction parallel to the alternate long and short dash line O shown in FIG. 1 is referred to as an “axial direction”, and a “radial direction” and a “circumferential direction” are described with reference to the alternate long and short dash line O.

  The baffle plate 1 is a baffle plate with an oil passage provided with an oil passage (hereinafter referred to as “plate oil passage”) 2 penetrating the inside of the plate. In addition to the plate oil passage 2, a supply port 21, a first discharge port 22, and a second discharge port 23 are formed in the baffle plate 1. The supply port 21, the first discharge port 22, and the second discharge port 23 are all provided at different positions in the circumferential direction of the baffle plate 1 and communicate with each other via the plate oil passage 2.

  The plate oil passage 2 is an oil passage capable of pumping oil and branches into a route from the supply port 21 to the first discharge port 22 and a route from the supply port 21 to the second discharge port 23. The oil that has flowed into the plate oil passage 2 from the supply port 21 is pumped in the circumferential direction, and is supplied from the first discharge port 22 and the second discharge port 23 to different oil supply destinations.

  The supply port 21 is a supply port that supplies oil to the plate oil passage 2, and is a connection port that is connected to an oil passage on the oil supply source side (for example, an oil passage provided in the case 3 described later). As shown in FIG. 2, the baffle plate 1 is provided with a supply unit 101 in which a supply port 21 is opened.

  The 1st discharge port 22 is a discharge port which discharges the oil in the plate oil path 2, and supplies oil to an oil supply destination. As shown in FIG. 1, the baffle plate 1 is provided with a first discharge portion 102 in which a first discharge port 22 is opened.

  The second discharge port 23 is a discharge port that discharges oil in the plate oil passage 2, and supplies oil to an oil supply destination different from the oil supply destination of the first discharge port 22. As shown in FIG. 2, the baffle plate 1 is provided with a second discharge portion 103 in which a second discharge port 23 is opened.

  Here, the structure of the baffle plate 1 will be described in detail. The baffle plate 1 is a plate-like resin member in which a cylindrical plate body 11 and a curved plate-like auxiliary member 12 are integrated. Each of the plate body 11 and the auxiliary member 12 is a resin member, and is overlapped and vibration welded. A plate oil passage 2 is formed by overlapping the plate body 11 and the auxiliary member 12. An oil passage groove (not shown) constituting the plate oil passage 2 is formed on at least one of the mating surfaces (welding surfaces) of the plate body 11 and the auxiliary member 12. For example, the oil passage groove formed in the plate body 11 and the oil passage groove formed in the auxiliary member 12 are integrated (vibrated and welded) so as to face each other.

  The plate body 11 is a resin member integrally formed into a cylindrical shape, and includes a first discharge portion 102, a cylindrical portion 111, and a flange portion 112.

  The first discharge portion 102 protrudes in the axial direction from the flange portion 112 and is provided outside the tubular portion 111. Moreover, the inside of the 1st discharge part 102 is formed in hollow, and the 1st discharge port 22 is opening in the front-end | tip part. The first discharge portion 102 forms a first discharge oil passage in the plate oil passage 2.

  The cylindrical portion 111 is formed in a dome shape that is open on both sides in the height direction. The cylindrical portion 111 includes a first opening 111a that opens toward the top of the dome and a second opening 111b that opens toward the bottom of the dome, and the second opening 111b extends from the first opening 111a to the first opening 111a. It has a shape with multiple steps or gradually decreasing diameter. The first opening 111a has a smaller diameter than the second opening 111b. In a state where the baffle plate 1 is attached to the case 3, the flange portion 112 and the cylindrical portion 111 function as a partition wall that regulates the direction in which oil flows between the case 3 and the differential gear mechanism.

  The flange portion 112 protrudes radially outward from the second opening 111b of the tubular portion 111 and extends along the circumferential direction. As shown in FIG. 2, the flange portion 112 does not have to be provided on the entire circumference in the circumferential direction of the tubular portion 111. Further, the auxiliary member 12 is integrated with a part of the flange portion 112 in the circumferential direction.

  The auxiliary member 12 is a resin member integrally formed in a plate shape curved in a substantially C shape, and includes a supply unit 101, a second discharge unit 103, and a main oil passage formation unit 121. The auxiliary member 12 is welded to one surface of the flange portion 112.

  The supply unit 101 is formed in a cylindrical shape extending along the axial direction, and a supply port 21 is opened at a tip portion thereof. The supply unit 101 forms a supply oil passage in the plate oil passage 2. The supply unit 101 includes an opening surface (hereinafter referred to as a “plate-side opening surface”) 101a in which the supply port 21 is open, and a flat back surface 101b formed on the opposite side of the plate-side opening surface 101a. Have. The plate-side opening surface 101a and the back surface 101b are both end surfaces in the axial direction and are formed in parallel to each other.

  The 2nd discharge part 103 is formed in the cylinder shape extended along the axial direction, and the 2nd discharge port 23 is opening in the front-end | tip part. Further, the second discharge portion 103 forms a second discharge oil passage in the plate oil passage 2.

  The main oil passage forming part 121 includes a main part extending in the circumferential direction along the second opening 111b, a supply side part extending radially outward from one end of the main part, and a middle part of the main part. A second discharge side portion extending radially outward from the main portion, and a first discharge side portion formed on the other end side of the main portion.

  The baffle plate 1 configured as described above is provided inside the case 3 (shown in FIG. 3). Thereby, oil can be supplied (pressure-fed) via the plate oil passage 2 to the oil supply destination provided at a different position in the case 3. When the baffle plate 1 is attached to the inside of the case 3, the supply port 21 is connected to the oil passage on the oil supply source side (oil pump side).

[1-2. Mounting structure]
FIG. 3 is a schematic diagram for explaining the mounting structure of the first embodiment. FIG. 4A is a diagram for explaining a state before the case 3 is assembled. FIG. 4B is a diagram for explaining a state after the case 3 is assembled. The case 3 is a case that accommodates a power transmission device (not shown), and is mounted on the vehicle.

  The first embodiment has a structure in which the baffle plate 1 is attached to the inside of the case 3 at the same time when the case 3 is assembled. As shown in FIGS. 3 and 4A, the supply unit 101 is a fixed part that is sandwiched between the first case member 31 and the second case member 32 that constitute the case 3. As shown in FIG. 4B, in the state where the case 3 is assembled, the supply port 21 is connected to an oil passage (hereinafter referred to as “case oil passage”) 4 formed in the first case member 31. In other words, the supply unit 101 is a portion that connects the plate oil passage 2 and the case oil passage 4 (hereinafter referred to as “oil passage connecting portion”). Then, by assembling the first case member 31 and the second case member 32, the plate oil passage 2 communicates with the case oil passage 4 on the oil supply source side via the supply portion 101.

  Specifically, the case 3 includes a first case member 31 that is a cylindrical case main body, and a second case member 32 that is a front cover that closes one opening of the first case member 31. As shown in FIGS. 4A and 4B, the first case member 31 and the second case member 32 are fastened by bolts 5 at the end portions constituting the case mating surface. The first case member 31 and the second case member 32 are peripheral elements (fixed elements) disposed around the baffle plate 1. That is, the attachment structure of the baffle plate 1 has a structure in which the supply unit 101 is sandwiched between two peripheral elements.

  The case oil passage 4 penetrates the inside of the first case member 31 and is connected to an oil supply source (oil pump). As shown in FIG. 3, the case oil passage 4 is connected to an outlet (hereinafter referred to as “case-side outlet”) 4 a that opens on the surface (hereinafter referred to as “case-side opening”) 6 of the first case member 31. Communicate.

  The case side outlet 4 a is a connection port connected to the supply port 21 of the baffle plate 1, and flows oil from the case oil passage 4 to the plate oil passage 2. The case-side opening surface 6 is a surface facing the plate-side opening surface 101a of the supply unit 101, and in contact with the plate-side opening surface 101a. The case side opening surface 6 is an oil passage connection surface on the case 3 side, and the plate side opening surface 101a is an oil passage connection surface on the baffle plate 1 side. In the example shown in FIG. 3, the case-side opening surface 6 is formed on the same plane as the mating surface 31 a of the first case member 31 with the second case member 32.

  The second case member 32 has a wall surface (hereinafter referred to as “holding surface”) 7 for restricting the supply unit 101 from moving in the Z direction (axial direction). The holding surface 7 is a surface facing the back surface 101b of the supply unit 101 in the Z direction, and in contact with the back surface 101b in the attached state. The back surface 101b is a contact surface with peripheral elements. In the example shown in FIG. 3, the holding surface 7 is formed on a plane different from the mating surface 32a of the second case member 32 with the first case member 31, and is formed in a shape recessed from the mating surface 32a. . The holding surface 7 functions as a surface that receives a hydraulic reaction force (load) acting on the supply unit 101. As shown in FIG. 4B, the holding surface 7 is in contact with the back surface 101b when the oil pressure of the oil flowing from the case oil passage 4 into the plate oil passage 2 acts on the supply portion 101 in the mounted state. Thus, it is possible to restrict the supply unit 101 from being displaced in the Z direction.

  Further, the seal member 8 is sandwiched between the plate-side opening surface 101 a of the supply unit 101 and the case-side opening surface 6 of the first case member 31. The seal member 8 is an elastic body such as an O-ring. And as shown in FIG.4 (b), between the case side opening surface 6 and the plate side opening surface 101a is sealed. The seal member 8 is not limited to an O-ring formed of an elastic body, and may be formed of a plate-like interposition member having a sealing property such as a gasket.

  According to the mounting structure of the first embodiment configured as described above, the case-side holding surface 7 can suppress the displacement of the resin-made baffle plate 1 due to the hydraulic pressure acting on the supply unit 101. For comparison, the structure without the holding surface 7 is shown in FIG. As shown in FIG. 5A, in the comparative structure 200, the die-cast oil passage 202 formed in the metal member 201 and the resin oil passage 204 formed in the resin member 203 cause oil in the connection portion 205. It is connected so that it can be pumped. However, as shown in FIG. 5B, since the holding surface 7 that contacts the resin member 203 does not exist, if the resin member 203 is displaced by the hydraulic reaction force acting on the resin oil passage 204 (for example, the position B in the Z direction). And a gap is generated in the connection portion 205. In contrast, the first embodiment described above has a structure in which the supply unit 101 is sandwiched between two peripheral elements. Therefore, the holding unit 7 can restrict the supply unit 101 from moving in the Z direction. Oil leakage can be suppressed from occurring at the connection portion with the case side outlet 4a.

  The case 3 is configured by combining a plurality of case members including a case main body having both ends opened and two cover members (front cover and rear cover) that close the openings on both sides of the case main body. A power transmission device (not shown) is accommodated in the interior. Although not shown, the case 3 includes a third case member (rear cover) attached to the other opening of the first case member 31. Inside the case 3, the baffle plate 1 is disposed between the differential gear mechanism included in the power transmission device housed inside the case 3 and the case 3, and oil is transferred between the differential gear mechanism and the case 3. It functions to regulate the flow direction.

  As described above, in the mounting structure according to the first embodiment, the plate-side opening surface 101a and the back surface 101b of the supply unit 101 are sandwiched between the two peripheral elements including the first case member 31 and the second case member 32. Have Since the back surface 101 b is in contact with the holding surface 7 of the case 3, it is possible to suppress the displacement of the baffle plate 1 due to the hydraulic reaction force of the oil pumped through the plate oil passage 2. Thereby, it can suppress that a clearance gap produces between the plate side opening surface 101a of the supply part 101, and the oil path connection surface by the side of a case 3, and can suppress generation | occurrence | production of an oil leak.

[2. Second Embodiment]
With reference to FIGS. 6-14, the attachment structure of 2nd Embodiment is demonstrated. Unlike the first embodiment, the second embodiment has a structure in which the opening surface and the back surface of the discharge portion are sandwiched between two peripheral elements.

  Here, the baffle plate 300 of the second embodiment will be described first with reference to FIGS. 6 to 9, the case 400 will be described with reference to FIGS. 10 to 11, and with reference to FIGS. 12 to 14. The details of the mounting structure of the second embodiment will be described. In the description of the second embodiment, the description of the same configuration as that of the first embodiment described above is omitted, and the reference numerals thereof are cited.

[2-1. Baffle plate]
As shown in FIGS. 6 to 9, the baffle plate 300 is a structure in which a plate body 311 and an auxiliary member 312 are integrated, and includes a supply unit 101, a first discharge unit 102, and a second discharge unit 103. And. Inside the baffle plate 300, a plate oil passage 2 that connects the supply port 21, the first discharge port 22, and the second discharge port 23 is formed.

  The plate main body 311 is different in shape from the plate main body 11 of the first embodiment, but, similar to the first embodiment, the first discharge portion 102 having the first discharge port 22, the tubular portion 111, and the flange portion. 112.

  The auxiliary member 312 includes a supply unit 101 having a supply port 21, a second discharge unit 103 having a second discharge port 23, a main oil passage forming unit 121, and a partition wall unit 122 for preventing oil diffusion. It is a resin member provided and integrally molded. The partition wall portion 122 is disposed on the radially outer side than the flange portion 112 of the plate body 311, and has a roof portion that protrudes in the axial direction. In the second embodiment, the structure of the supply unit 101 and the structure of the second discharge unit 103 are different from those in the first embodiment.

  As shown in FIGS. 6-8, the supply part 101 has the plate side opening surface 101a opened to the flat surface. The back surface 101b of the supply unit 101 is a flat surface formed by a convex portion formed on the plate body 311 and is a surface that contacts peripheral elements. The plate-side opening surface 101a and the back surface 101b are formed on surfaces parallel to each other.

  As shown in FIG. 6, the second discharge portion 103 is formed in a cylindrical shape, an opening surface 103 a in which the second discharge port 23 is open is formed at one tip portion, and a back surface is formed at the other tip portion. 103b is formed. The tip part on the second discharge port 23 side is formed in a convex structure on the outer peripheral part, and the central part thereof is an opening surface 103a as a concave surface. The opening surface 103a is a flat surface. As shown in FIGS. 7 and 9, the back surface 103 b of the second discharge portion 103 is a flat surface formed in an annular shape, and is a surface that contacts peripheral elements. The opening surface 103a and the back surface 103b are flat surfaces parallel to each other. The second discharge portion 103 is a fixed portion in which the opening surface 103a and the back surface 103b are sandwiched between two peripheral elements (a case 400 described later).

[2-2. Case]
As shown in FIGS. 10 to 11, the case 400 includes a first case member 402 that is a case main body and a second case member 401 that is a cover member.

  As shown in FIG. 10, the second case member 401 is formed with a supply-side guide portion 410 for positioning the supply portion 101 and a discharge-side guide portion 420 for positioning the second discharge portion 103. Yes.

  The supply side guide portion 410 is provided at a position near the center of the wall surface 400a of the second case member 401, and is formed by a substantially U-shaped protruding structure protruding from the wall surface 400a. A wall surface portion (a portion that does not protrude) surrounded by the supply side guide portion 410 becomes the supply side holding surface 411. The supply-side holding surface 411 is a surface that contacts the back surface 101 b of the supply unit 101.

  The discharge side guide portion 420 is provided in the vicinity of the mating surface 401a of the second case member 401 with the first case member 402, and is a circular wall surface portion that is recessed from the mating surface 401a (hereinafter referred to as “discharge side holding surface”). 421). The discharge side holding surface 421 is a surface that contacts the back surface 103 b of the second discharge unit 103.

  As shown in FIG. 11, the first case member 402 is provided with an oil passage connection portion 430 on the case 400 side. The oil passage connection portion 430 has an inflow port 431 that is a case side connection port, and an opening surface 432 in which the inflow port 431 is open. Specifically, the oil passage connecting portion 430 has a convex structure that protrudes in a cylindrical shape, and an annular opening surface 432 is formed at a tip portion thereof. The oil passage connection portion 430 is a portion to which the second discharge port 23 of the second discharge portion 103 is connected. That is, the oil passage connection portion 430 is an inlet of the case oil passage 440 (shown in FIG. 14) on the downstream side of the plate oil passage 2, and the mating surface of the first case member 402 with the second case member 401. It is provided near 402a.

[2-3. Mounting structure]
As shown in FIG. 12, the supply unit 101 is sandwiched and fixed between the second case member 401 and the front support 500. The front support 500 is a peripheral element including a reinforcing rib wall provided inside the case 400. The front support 500 is formed with a plate support portion 501 that contacts the supply portion 101, and a support oil passage 510 that is an oil passage connected to an oil pump (not shown) is formed therein. ing.

  The support oil passage 510 communicates with an outlet 511 that opens on a surface (oil passage connection surface) of the plate support portion 501 that faces the supply port 21 of the supply portion 101. Further, the support oil passage 510 communicates with the plate oil passage 2 through the outlet 511 and the supply port 21. That is, the plate support portion 501 is formed in a plate shape and has an oil passage connection surface that contacts the plate-side opening surface 101a. The supply unit 101 is positioned on the supply side guide unit 410 of the second case member 401, and the back surface 101 b is in contact with the supply side holding surface 411.

  As shown in FIGS. 13 and 14, the second discharge portion 103 is positioned on the discharge-side guide portion 420 of the second case member 401, and the second discharge port 23 and the inlet 431 of the first case member 402 Is connected. In the connection part of the 2nd discharge port 23 and the inflow port 431, it is comprised so that a convex structure and a concave structure may fit for alignment of an oil path. For example, it is assembled so that the tip end portion (concave structure) of the second discharge portion 103 is inserted into the oil passage connection portion 430 (convex structure) on the case 400 side. As a result, the case oil passage 440 formed in the first case member 402 and the plate oil passage 2 communicate with each other.

  Further, the back surface 103 b side of the second discharge part 103 is positioned by being fitted to the discharge side guide part 420 of the second case member 401. The back surface 103 b is in contact with the discharge side holding surface 421 of the discharge side guide portion 420. Thereby, it is suppressed that the 2nd discharge part 103 is displaced by the hydraulic reaction force. Further, the discharge-side guide portion 420 may be configured to compress the back surface 103b toward the opening surface 103a as long as the second discharge portion 103 does not buckle.

  In addition, the back surface 103b may be provided with a discharge port communicating with the plate oil passage 2. In this case, an inflow port which is a case side connection port is opened on the discharge side holding surface 421 of the second case member 401 (discharge side guide portion 420). That is, the back surface 103b and the discharge side holding surface 421 are oil passage connection surfaces, and the discharge port of the back surface 103b and the inflow port of the discharge side holding surface 421 are connected. That is, the plate oil passage 2 is communicated with a case oil passage (not shown) formed in the second case member 401 via a discharge port opened on the back surface 103 b of the second discharge portion 103. Thereby, oil can be flowed from the 2nd discharge part 103 toward an axial direction both sides.

  As described above, in the mounting structure of the second embodiment, in addition to the supply unit 101, the second discharge unit 103 also has a structure sandwiched between two peripheral elements. Thereby, it can suppress that the baffle plate 300 displaces in the oil path connection part of the baffle plate 300 and a peripheral element, and can suppress that a clearance gap produces in an oil path connection part and an oil leak generate | occur | produces. Further, the supply unit 101 and the second discharge unit 103 are positioned by the positioning structure on the case 400 side. Thereby, it can suppress that an opening part shift | deviates in the oil-path connection part of the baffle plate 300 and a peripheral element.

  As a modification of each of the above-described embodiments, as shown in FIG. 15, the supply unit 101 may be formed to be sandwiched in a state where it is positioned in the recesses formed in the two peripheral elements. For example, as a modification of the first embodiment, the supply port 21 side of the supply unit 101 is inserted into the recess formed in the first case member 31, and the supply unit 101 is inserted into the recess formed in the second case member 32. Insert the back surface 101b side. The holding surface 7 of the second case member 32 is configured to contact the back surface 101b and receive a hydraulic reaction force acting on the supply unit 101, and to compress the supply unit 101 toward the first case member 31. Also good. Alternatively, as a modification of the second embodiment, the supply port 21 side of the supply unit 101 is inserted into a recess formed in the front support 500, and the back surface 101b of the supply unit 101 is inserted into a recess formed in the second case member 401. Insert the side. The supply-side holding surface 411 of the second case member 401 is configured to contact the back surface 101b and receive a hydraulic reaction force acting on the supply unit 101 and to compress the supply unit 101 toward the front support 500. Also good.

  Furthermore, the power transmission device housed in the case 3 is a mechanism that is mounted on the vehicle and transmits the power output from the engine to the drive wheels. Although not shown, the power transmission device includes a transmission, a counter gear mechanism, and a differential gear mechanism, and is mounted on, for example, a front engine / front drive type vehicle. Case 3 in this case is a transaxle case that houses the transmission and the differential gear mechanism. The power transmission device transmits power from the transmission to the differential gear mechanism via the counter gear mechanism on a power transmission path from the engine to the drive wheels. Therefore, a plurality of rotating shafts constituting a power transmission device are provided inside the case 3.

DESCRIPTION OF SYMBOLS 1 Baffle plate 2 Plate oil path 3 Case 4 Case oil path 6 Case side opening surface 7 Holding surface 101 Supply part 102 1st discharge part 103 2nd discharge part

Claims (1)

In the mounting structure of the baffle plate provided inside the case that houses the power transmission device,
The baffle plate is
A plate oil passage which is an oil passage formed inside the baffle plate;
A supply portion for supplying oil to the plate oil passage, a supply portion having a closed back surface opposite to an opening surface where the supply port is open;
A discharge port having a discharge port for discharging oil in the plate oil passage, and a back surface opposite to the opening surface where the discharge port is open;
With
The case includes a holding surface that contacts a back surface of the supply unit or a back surface of the discharge unit,
An oil passage that is disposed around the baffle plate and has an oil passage connection surface that contacts the opening surface of the supply portion or the opening surface of the discharge portion and communicates with a connection port that opens to the oil passage connection surface is formed. Peripheral elements are provided,
The baffle plate mounting structure characterized in that at least the supply part of the supply part and the discharge part is sandwiched between the oil passage connection surface and the holding surface.