JP2019128021A - Vehicle drive transmission device - Google Patents

Abstract

To realize a vehicle drive transmission device which can inhibit increase of the size caused by providing a strainer.SOLUTION: A housing chamber 40 which houses a strainer 10 is integrally formed with a case 30. The housing chamber 40 has: a communication part 41 communicating with an oil hydraulic pump 7; and an opening 42 communicating with an oil storage part 31 and is formed so as to extend from the opening 42 in a columnar form. The strainer 10 includes: a filter part 11 which is inserted into the housing chamber 40 from the opening 42; a seal part 13 which is disposed so as to contact with the case 30 directly or through a seal member 12 at the opening 42 side relative to the filter part 11; an intake port 14 opening to the oil storage part 31; and a communication oil passage 15 which allows communication between the intake port 14 and the filter part 11.SELECTED DRAWING: Figure 4

Description

  The present invention includes a power transmission mechanism, a case that houses the power transmission mechanism, an oil storage portion that is formed in the case and stores oil, a strainer for filtering oil, and a strainer that removes oil from the oil storage portion. The present invention relates to a drive transmission device for a vehicle including:

  An example of the above-mentioned drive transmission device for vehicles is disclosed by Unexamined-Japanese-Patent No. 2015-135151 (patent document 1). Specifically, Patent Document 1 discloses a transmission (1) including a transmission mechanism (3) and a differential mechanism (4), and a casing (2) that accommodates them. The transmission (1) includes an oil reservoir (10) that is formed in the casing (2) and accumulates hydraulic oil, an oil strainer (40) installed in the oil reservoir (10), and an oil reservoir. And a hydraulic pump (61) for suctioning the hydraulic oil of (10) through an oil strainer (40). As described in paragraph 0021 of FIG. 1 and FIG. 1, the oil strainer (40) includes a filtering member (41) for filtering the working oil installed inside the hollow container. The reference numerals in parentheses in the description of the background art are those of Patent Document 1.

  By the way, from the description of paragraph 0021 of FIG. 1 and FIG. 1, in the configuration of patent document 1, the strainer is configured as a separate part different from the case, and is fixed inside the case using a fastening member such as a bolt. It is understood that For this reason, a clearance is generally required between the strainer and the inner surface of the surrounding case to avoid mutual interference, and a fixing structure (for example, a fastening member is used for fixing the strainer to the inside of the case). Need to be fixed. In the configuration of Patent Document 1, the gap and the fixing structure may hinder the downsizing of the vehicle drive transmission device.

JP, 2015-135151, A

  Therefore, it is desired to realize a vehicle drive transmission device that can suppress an increase in size due to the provision of a strainer.

  A characteristic configuration of the drive transmission apparatus for vehicles in view of the above is a power transmission mechanism for transmitting power between an input member drivingly connected to a driving power source and an output member drivingly connected to a wheel, and the power transmission mechanism An oil storage part that is formed in the case and stores oil, a strainer for filtering the oil, and a hydraulic pump that sucks the oil in the oil storage part through the strainer. The case is integrally formed with a storage chamber in which the strainer is stored, and the storage chamber has a communication portion that communicates with the hydraulic pump, and an opening that communicates with the oil storage portion. The strainer is formed so as to extend in a column shape from the opening, and the strainer includes a filtration part inserted into the storage chamber from the opening, and a seal member directly or on the opening side with respect to the filtration part. Through A sealing portion which is arranged in contact with the casing, a suction port opened toward the oil reservoir, in that and a communicating oil passage communicating with said filtration portion and said inlet port.

According to said characteristic structure, the storage chamber in which a strainer is accommodated is integrally formed in a case. Therefore, as compared with the case where the storage chamber is formed in a separate part different from the case, a gap between the separate part and the case and a fixing structure for fixing the separate part to the case are unnecessary. The storage chamber can be provided while suppressing the increase in size of the drive transmission device. As a result, it is possible to realize a vehicle drive transmission device that can suppress an increase in size due to the provision of a strainer. In addition, according to the above characteristic configuration, in order to provide a strainer, a fixing structure for fixing the separate part to the case is unnecessary as compared with the case where the storage chamber is formed as a separate part different from the case. There is also an advantage that the number of parts required can be reduced.
In addition, according to the above-described characteristic configuration, the strainer is connected to the case directly or via the seal member on the opening side of the storage chamber with respect to the filtration unit, in addition to the filtration unit, the suction port, and the communication oil passage. It has a seal part arranged to touch. Therefore, when the hydraulic pump is operated, only the oil that has passed through the filtration portion can flow to the communication portion that communicates with the hydraulic pump in the storage chamber.

  Further features and advantages of the drive transmission for a vehicle become apparent from the following description of the embodiments described with reference to the drawings.

Skeleton view of the drive transmission for vehicles Axial view of part of a drive transmission for a vehicle Axial view of part of the case Sectional view of a drive transmission apparatus for a vehicle at an installation site of a first strainer Cross-sectional view of a drive transmission apparatus for a vehicle at a location where a second strainer is provided

  An embodiment of a drive transmission apparatus for a vehicle will be described with reference to the drawings. In the present embodiment, the drive transmission device 1 corresponds to a “vehicle drive transmission device”, the first strainer 10 corresponds to a “strainer”, the first hydraulic pump 7 corresponds to a “hydraulic pump”, and the first housing. The chamber 40 corresponds to a "storage chamber", the first communication portion 41 corresponds to a "communication portion", the first opening 42 corresponds to an "opening", and the first filtering portion 11 corresponds to a "filtering portion". The first seal member 12 corresponds to the "seal member", the first seal portion 13 corresponds to the "seal portion", the first suction port 14 corresponds to the "suction port", and the first communication oil passage 15 corresponds to the “communication oil passage”, the first inner peripheral surface 43 corresponds to the “inner peripheral surface of the storage chamber”, and the first tubular portion 16 corresponds to the “tubular portion”.

  As used herein, “drive connection” means a state in which two rotating elements are connected to transmit driving force. This concept includes a state in which the two rotating elements are coupled so as to rotate integrally, and a state in which the two rotating elements are coupled so as to be able to transmit a driving force via one or more transmission members. . Such transmission members include various members (shafts, gear mechanisms, belts, chains, etc.) that transmit rotation at the same speed or at different speeds, and an engagement device that selectively transmits rotation and driving force. (Such as a friction engagement device or a meshing engagement device) may be included. However, the term “drive connection” for each rotating element of the planetary gear mechanism refers to a state in which the three rotating elements included in the planetary gear mechanism are drivingly connected to each other without intervening other rotating elements. .

  Further, in this specification, the “rotary electric machine” is used as a concept including any of a motor (electric motor), a generator (generator), and a motor / generator functioning as both a motor and a generator as necessary. Yes. Further, in this specification, regarding the arrangement of two members, “overlapping in a specific direction” means that when a virtual straight line parallel to the visual line direction is moved in each direction orthogonal to the virtual straight line, It means that a region where the virtual straight line intersects both of the two members exists at least in part. For example, “overlapping in the radial direction” means that a region where the virtual straight line intersects both of the two members exists in at least a partial region in the circumferential direction. In addition, the direction about each member in the following description represents the direction in the state assembled | attached to the drive transmission device for vehicles. The vertical direction V represents the vertical direction when the vehicle drive transmission device is mounted on the vehicle (vehicle mounted state), “up” represents the upper side in the vehicle mounted state, and “lower” represents the vehicle mounted state. Represents the lower part of Moreover, the term regarding the direction, the position, etc. about each member is a concept including the state which has a difference by an error (error in the degree which can be permitted in manufacture).

  The drive transmission device 1 is a drive transmission device for a vehicle mounted on a vehicle. As shown in FIGS. 1 and 2, the drive transmission device 1 is a power transmission mechanism that transmits power between an input member 3 drivingly connected to a driving power source 2 and an output member 5 drivingly connected to a wheel 4. 6 and a case 30 for housing the power transmission mechanism 6. The case 30 also accommodates a first rotary electric machine 61, a second rotary electric machine 62, and an output differential gear device 66, which will be described later. The driving force source 2 is a driving force source for the wheels 4. A vehicle (hereinafter simply referred to as a “vehicle”) on which the drive transmission device 1 is mounted by driving the wheels 4 with the torque of the driving force source 2 transmitted to the output member 5 via the power transmission mechanism 6. Run.

  In the present embodiment, the vehicle is provided with a plurality of driving power sources 2, and the power transmission mechanism 6 motive power between the input member 3 and the output member 5 which are drive-connected to each of the plurality of driving power sources 2. To communicate. Specifically, the vehicle is provided with three driving power sources 2 of an internal combustion engine 60, a first rotating electric machine 61, and a second rotating electric machine 62. The power transmission mechanism 6 transmits power between the first input member 3 a that is the input member 3 that is drivingly connected to the internal combustion engine 60 and the output member 5, and is input that is drivingly connected to the first rotating electrical machine 61. Power is transmitted between the second input member 3 b that is the member 3 and the output member 5, and the third input member 3 c that is the input member 3 that is drivingly connected to the second rotating electrical machine 62 and the output member 5. Transmit power. The internal combustion engine 60 is a motor (such as a gasoline engine or a diesel engine) driven by combustion of fuel inside the engine to take out the power.

  The first input member 3a is drivingly connected to an output shaft (crankshaft or the like) of the internal combustion engine 60. The first input member 3a is connected to rotate integrally with the output shaft of the internal combustion engine 60, or is drivingly connected to the output shaft of the internal combustion engine 60 via another member such as a damper or a clutch.

  The first rotating electrical machine 61 includes a first stator 61b that is fixed to the case 30 and a first rotor 61a that is rotatably supported with respect to the first stator 61b. The second input member 3b is drivingly connected to the first rotor 61a. In the present embodiment, the second input member 3b is connected to rotate integrally with the first rotor 61a. The second rotating electrical machine 62 includes a second stator 62b that is fixed to the case 30 and a second rotor 62a that is rotatably supported with respect to the second stator 62b. The third input member 3c is drivingly connected to the second rotor 62a. In the present embodiment, the third input member 3c is connected to rotate integrally with the second rotor 62a. The first rotating electrical machine 61 and the second rotating electrical machine 62 are electrically connected to a power storage device such as a battery or a capacitor, and are powered by receiving power supplied from the power storage device, or the torque of the internal combustion engine 60 or the vehicle The electric power generated by the inertial force or the like is supplied to the power storage device to be stored.

  In the present embodiment, the output member 5 is drivably connected to the wheel 4 inseparably, and always rotates in conjunction with the wheel 4. Specifically, in the present embodiment, the drive transmission device 1 includes an output differential gear device 66, and the output member 5 is an input gear (differential input gear) of the output differential gear device 66. The output differential gear device 66 is configured using, for example, a bevel gear type differential gear mechanism or a planetary gear type differential gear mechanism. The output differential gear device 66 distributes and transmits the torque of the driving force source 2 input to the output member 5 to the two left and right axles 67 (that is, the two left and right wheels 4). The axle 67 is a shaft member (drive shaft) that connects the differential gear device for output 66 and the wheel 4.

  As shown in FIG. 1, in the present embodiment, the power transmission mechanism 6 includes a planetary gear mechanism 63 and a counter gear mechanism 64. In this embodiment, the 1st input member 3a, the 2nd input member 3b, the planetary gear mechanism 63, and the 2nd hydraulic pump 8 mentioned later are arrange | positioned on the 1st axis | shaft A1, and the 3rd input member 3c is 2nd. The output differential gear device 66 is disposed on the third axis A3, the counter gear mechanism 64 is disposed on the fourth axis A4, and the first hydraulic pump 7 described later is disposed on the axis A2. It is disposed on the 5-axis A5. These first axis A1, second axis A2, third axis A3, fourth axis A4, and fifth axis A5 are mutually parallel axes (virtual axes). Hereinafter, directions parallel to these axes (the first axis A1, the second axis A2, the third axis A3, the fourth axis A4, and the fifth axis A5) (a common axial direction among the axes) are described. "Axial direction L". As shown in FIG. 4 and FIG. 5, in the present embodiment, the drive transmission device 1 is mounted on the vehicle with the axial direction L oriented along the horizontal plane (plane orthogonal to the vertical direction V).

  The planetary gear mechanism 63 includes a first rotating element 63a that is drivingly connected to the first input member 3a, a second rotating element 63b that is drivingly connected to the second input member 3b, and a third that is drivingly connected to the output member 5. And a rotating element 63c. In the present embodiment, the first rotation element 63a is connected to rotate integrally with the first input member 3a, and the second rotation element 63b is connected to rotate integrally with the second input member 3b. The third rotation element 63c is coupled to a distribution output gear 65 that is drivingly coupled to the output member 5 via the counter gear mechanism 64 so as to rotate integrally. In this embodiment, the planetary gear mechanism 63 is a single pinion type planetary gear mechanism, the first rotating element 63a is a carrier, the second rotating element 63b is a sun gear, and the third rotating element 63c is a ring gear. Thus, the planetary gear mechanism 63 is configured to distribute the torque of the internal combustion engine 60 transmitted to the first rotating element 63 a to the second rotating element 63 b and the third rotating element 63 c. The planetary gear mechanism 63 combines the torque of the internal combustion engine 60 transmitted to the first rotating element 63a and the torque of the first rotating electrical machine 61 transmitted to the second rotating element 63b, and transmits the resultant to the third rotating element 63c. It may be configured to

  The counter gear mechanism 64 includes a first gear 64a that meshes with the distribution output gear 65, a second gear 64b that meshes with the output member 5, and a connecting shaft 64c that connects the first gear 64a and the second gear 64b. Yes. In the present embodiment, the output gear 62c of the second rotating electrical machine 62 is also meshed with the first gear 64a. The output gear 62c is a gear for outputting the torque of the second rotating electrical machine 62, and is connected to rotate integrally with the second rotor 62a via the third input member 3c.

  Since the power transmission mechanism 6 according to the present embodiment is configured as described above, the first rotary electric machine 61 is transmitted during execution of the continuously variable transmission mode in which the torque of the internal combustion engine 60 is transmitted to the wheels 4 to travel the vehicle. Outputs a reaction torque relative to the torque distributed to the second rotating element 63b. At this time, the first rotating electrical machine 61 basically functions as a generator and generates electric power by the torque distributed to the second rotating element 63 b. Further, during the execution of the continuously variable transmission traveling mode, the torque attenuated with respect to the torque of the internal combustion engine 60 is distributed to the third rotating element 63c as the torque for driving the wheel 4, and the second rotating electric machine 62 If necessary, torque is output so as to compensate for the shortage with respect to the wheel request torque (torque required to be transmitted to the wheel 4). Further, during the execution of the electric travel mode in which only the torque of the second rotating electrical machine 62 is transmitted to the wheels 4 to travel the vehicle, the internal combustion engine 60 is basically in a stopped state in which the fuel supply is stopped. The single rotating electrical machine 61 is basically in a state of idling (a state where the target torque is set to zero torque).

  As shown in FIG. 1, the drive transmission device 1 includes a first hydraulic pump 7. In the present embodiment, the drive transmission device 1 further includes a second hydraulic pump 8. The first hydraulic pump 7 and the second hydraulic pump 8 generate the hydraulic pressure required by the vehicle. Examples of the hydraulic pressure required by the vehicle include the hydraulic pressure required for lubrication or cooling of each part, and the hydraulic pressure required for the operation of a device that operates by hydraulic pressure. In the present embodiment, the hydraulic pressure generated by one or both of the first hydraulic pump 7 and the second hydraulic pump 8 is supplied to the gears constituting the power transmission mechanism 6 for lubrication and the first rotation. The electric machine 61 and the second rotating electric machine 62 are configured to be supplied for lubrication and cooling. Although not described in detail, a configuration in which the hydraulic pressure generated by the first hydraulic pump 7 and the hydraulic pressure generated by the second hydraulic pump 8 are supplied to mutually independent oil paths may be supplied to the common oil path. Can also be configured. In the former configuration, the hydraulic pressure required by each part of the vehicle can be shared by the first hydraulic pump 7 and the second hydraulic pump 8.

  As the first hydraulic pump 7 and the second hydraulic pump 8, an internal gear pump, an external gear pump, a vane pump, or the like can be used. As shown in FIG. 4, in the present embodiment, an internal gear pump such as a trochoid pump is used as the first hydraulic pump 7. As will be described below, in the present embodiment, both the first hydraulic pump 7 and the second hydraulic pump 8 are driven by a rotating member constituting the power transmission mechanism 6 (that is, the power transmitted by the power transmission mechanism 6). It is comprised so that it may drive.

  In the present embodiment, the first pump drive shaft 7 a which is a drive shaft of the first hydraulic pump 7 is drivingly connected to the wheel 4 inseparably, and always rotates in conjunction with the wheel 4. Therefore, in the state where the vehicle is traveling, regardless of whether the continuously variable speed traveling mode or the electric traveling mode is being executed (that is, even when the internal combustion engine 60 is stopped), 1 The hydraulic pressure required by the vehicle can be generated by driving the hydraulic pump 7. Specifically, as shown in FIG. 4, the first pump drive shaft 7a rotates integrally with a pump rotor 73 (an inner rotor and an inner rotor that are inscribed with each other) housed in the pump chamber 70. It is connected. The first pump drive shaft 7a is provided with a pump drive gear 7b, and the pump drive gear 7b meshes with the output member 5 as shown in FIG. Thus, in the present embodiment, the first hydraulic pump 7 is configured to be driven by the output member 5 that is drivingly connected to the wheel 4 by the pump drive gear 7 b meshing with the output member 5.

  As shown in FIG. 1, in the present embodiment, the second pump drive shaft 8a, which is the drive shaft of the second hydraulic pump 8, is drivingly connected to the first input member 3a so as to be separable, and is always the first input member 3a. Synchronize with and rotate. Therefore, regardless of whether or not the vehicle is traveling, the second hydraulic pump 8 can be driven by the torque of the internal combustion engine 60 to generate the hydraulic pressure required by the vehicle. In the present embodiment, the second pump drive shaft 8a is connected to rotate integrally with the first input member 3a, and the second hydraulic pump 8 is configured to be driven by the first input member 3a. It is done. The second pump drive shaft 8a is arranged on a separate shaft from the first input member 3a, and the second pump drive shaft 8a and the first input member 3a are connected to a gear mechanism or a winding transmission mechanism (a chain and a sprocket). It is also possible to adopt a configuration in which the components are connected via a mechanism used, a mechanism using a belt and a pulley, or the like.

  As shown in FIGS. 2 and 4, the drive transmission device 1 includes an oil storage portion 31 that is formed in the case 30 and stores oil, and a first strainer 10 for filtering the oil. As shown in FIGS. 2 and 5, in the present embodiment, the drive transmission device 1 further includes a second strainer 20 for filtering oil. The 1st strainer 10 and the 2nd strainer 20 are filters for removing the foreign material contained in oil. The first hydraulic pump 7 sucks the oil in the oil reservoir 31 through the first strainer 10. Therefore, when the first hydraulic pump 7 sucks the oil in the oil reservoir 31 to generate the hydraulic pressure, the oil after the foreign matter is removed by the first strainer 10 is supplied to the first hydraulic pump 7. Further, the second hydraulic pump 8 sucks the oil in the oil reservoir 31 through the second strainer 20. Therefore, when the second hydraulic pump 8 sucks the oil in the oil reservoir 31 to generate the hydraulic pressure, the oil after the foreign matter is removed by the second strainer 20 is supplied to the second hydraulic pump 8.

  In the present embodiment, the oil reservoir 31 is formed in the lower portion (the bottom of the case 30) in the case 30. Specifically, the case 30 includes a peripheral wall portion 32 formed in a cylindrical shape extending in the axial direction L, and the oil storage portion 31 is partitioned from the lower side by the inner surface of the lower portion of the peripheral wall portion 32. Yes.

  Hereinafter, a configuration for suppressing an increase in size by providing the first strainer 10 and the second strainer 20 in the drive transmission device 1 of the present embodiment will be described. The radial direction in the following description of the first strainer 10 is the radial direction based on the first inner peripheral surface 43 to be described later or the axis of the first cylindrical portion 11a to be described later unless otherwise specified. It is. Further, the radial direction in the following description of the second strainer 20 is a radial direction based on the axis of the second inner peripheral surface 53 described later or the second cylindrical portion 21a described later unless otherwise specified. It is.

  As shown in FIG. 4, the first storage chamber 40 in which the first strainer 10 is stored is integrally formed in the case 30. Thereby, as compared with the case where the first storage chamber 40 is formed in a separate part different from the case 30, a fixing structure for fixing the gap between the separate part and the case 30 and the separate part to the case 30 Therefore, the first storage chamber 40 can be provided while suppressing the increase in size of the drive transmission device 1. In the present embodiment, as shown in FIG. 5, the second accommodation chamber 50 in which the second strainer 20 is accommodated is also formed integrally with the case 30. Therefore, similarly, it is possible to provide the second storage chamber 50 while suppressing an increase in the size of the drive transmission device 1. When the case 30 is a cast part, at least a part of the first storage chamber 40 and at least a part of the second storage chamber 50 can be formed by casting.

  As shown in FIG. 4, the first storage chamber 40 includes a first communication portion 41 that communicates with the first hydraulic pump 7, and a first opening portion 42 that communicates with the oil storage portion 31. It is formed so as to extend from 42 in a columnar shape. In the present embodiment, the extending direction E of the first storage chamber 40 is along the axial direction L. The first strainer 10 includes a first filtration unit 11 inserted into the first storage chamber 40 from the first opening 42, a first suction port 14 that opens toward the oil storage unit 31, and a first And a first communication oil passage 15 that communicates the suction port 14 with the first filtration unit 11. Therefore, when the first hydraulic pump 7 is operated, the oil in the oil reservoir 31 is introduced into the first strainer 10 from the first suction port 14, and then passes through the first communication oil passage 15 and then the first filtration unit. Reach 11 The first filtration part 11 has a part formed in a porous or mesh shape, and the oil that has reached the first filtration part 11 is filtered by passing through the part, and then the first communication part. 41 is discharged to the outside of the first storage chamber 40 and supplied to the pump chamber 70 of the first hydraulic pump 7. Note that the portions of the first strainer 10 excluding the first suction port 14 and the first filtration unit 11 are closed so that the oil flowing through the first communication oil passage 15 does not leak to the outside of the first strainer 10.

  The first filtration part 11 is formed in a cylindrical shape extending from the first seal part 13 described later along the extending direction E of the first storage chamber 40, and communicates with the first communication oil passage 15 on the inner diameter side thereof. . Specifically, the side from the inside of the first storage chamber 40 in the extending direction E of the first storage chamber 40 toward the first opening 42 is defined as a first side E1, and the first side E1 in the extending direction E is With the opposite side as the second side E2, the first filtration unit 11 is formed in a bottomed cylindrical shape that opens to the first side E1 (in other words, has a bottom on the second side E2), and the first communicating oil A portion of the second side E2 in the path 15 is partitioned from the radially outer side and the second side E2. And the 1st hole part 11b which penetrates the said 1st cylindrical part 11a to the 1st cylindrical part 11a which is the part formed in the cylinder shape extended in the extending direction E in the 1st filtration part 11 in the radial direction is provided. The first filtration portion 11 is in communication with the first communication oil passage 15 on the inner diameter side of the first cylindrical portion 11a.

  In the present embodiment, the first filtration unit 11 includes a first filter medium 11c mounted on the outer peripheral surface of the first cylindrical portion 11a. The first filter medium 11c is formed of a porous member such as a non-woven fabric. In the present embodiment, the first filter medium 11c bent into a pleat shape is wound around the outer peripheral surface of the first tubular portion 11a in a cylindrical shape, but the shape of the first filter medium 11c can be changed as appropriate. For example, it is also possible to make the shape of the first filter medium 11c cylindrical. Thus, since the 1st filtration part 11 is equipped with the 1st filter medium 11c, in this embodiment, the oil which reached | attained the 1st filtration part 11 through the 1st communicating oil path 15 forms in the 1st cylindrical part 11a. It is supplied to the first filter medium 11c through the first holes 11b and filtered by the first filter medium 11c. In the present embodiment, the first cylindrical portion 11a is formed of a porous or mesh-like member in which a plurality of first hole portions 11b are formed, and relatively large foreign matters are removed by the first cylindrical portion 11a. The later oil is supplied to the first filter medium 11c. In the configuration in which the oil is filtered by the first cylindrical portion 11a as described above, the first filtering portion 11 may not include the first filter medium 11c. When the first filtration portion 11 includes the first filter medium 11c, oil filtration is basically performed by using the first hole 11b as a slot-like hole extending in the extending direction E, or the like. It can also be configured to be performed only by

  The first strainer 10 further includes the first opening 42 side (the first side E1) with respect to the first filtering portion 11 in addition to the first filtering portion 11, the first suction port 14, and the first communication oil passage 15. ), The first seal portion 13 is provided so as to be in contact with the case 30 directly or via the first seal member 12. Thereby, at the time of the operation of the first hydraulic pump 7, the oil in the oil reservoir 31 is prevented from flowing from the first opening 42 to the first communication part 41 without passing through the inside of the first strainer 10, That is, only the oil that has passed through the first filtering unit 11 can flow to the first communication unit 41.

  As shown in FIG. 4, in the present embodiment, the first seal portion 13 is disposed to be in contact with the case 30 via the first seal member 12. Further, in the present embodiment, the portion in contact with the first seal portion 13 in the case 30 is the inner peripheral surface (first inner peripheral surface 43) of the first accommodation chamber 40. That is, in the present embodiment, the first seal portion 13 is disposed in contact with the first inner circumferential surface 43 via the first seal member 12. Specifically, the first seal portion 13 is formed in an annular plate shape (flange shape) having a diameter to be fitted to the first inner peripheral surface 43, and circumferentially on the outer peripheral surface of the first seal portion 13. An extending recessed groove is formed. In the present embodiment, an O-ring is used as the first seal member 12, and the first seal member 12 is attached to the recessed groove. Thus, the first seal portion 13 is disposed to be in contact with the case 30 via the first seal member 12 mounted on the outer peripheral surface thereof. Note that a member other than the O-ring such as a liquid gasket may be used as the first seal member 12.

  In the present embodiment, the first strainer 10 is disposed adjacent to the first hydraulic pump 7. Using such an arrangement configuration, in the present embodiment, the pump cover 72 for forming the pump chamber 70 of the first hydraulic pump 7 is used as a retainer for the first strainer 10 from the first storage chamber 40. doing. Specifically, as shown in FIG. 4, the case 30 has a radial wall 33 extending in the radial direction based on the fifth axis A5 (see FIGS. 1 to 3) on which the first hydraulic pump 7 is disposed. The pump body 71 is formed integrally with the radial wall 33. As shown in FIGS. 3 and 4, the pump body 71 has a recess for forming the pump chamber 70, and a recess for forming a first discharge oil passage 81 communicating with the discharge port of the first hydraulic pump 7, And, a concave portion for forming a second discharge oil passage 82 communicating with the discharge port of the first hydraulic pump 7 is formed. The pump chamber 70 is formed between the pump body 71 formed integrally with the case 30 (here, the radial wall portion 33) and the pump cover 72 attached to the pump body 71. Yes. The pump cover 72 is fastened and fixed to the pump body 71 by, for example, a bolt. In the pump cover 72, a through hole is formed at a position communicating with the first discharge oil passage 81, and a first for supplying the oil of the first discharge oil passage 81 to the supply destination to the through hole. One end of the pipe 91 is inserted.

  A first storage chamber 40 is formed in a portion of the radial wall portion 33 below the pump body 71. The first storage chamber 40 is disposed so as to overlap with the pump chamber 70 in a radial direction based on the fifth axis A5 (see FIGS. 1 to 3). Therefore, in the present embodiment, as shown in FIGS. 3 and 4, the first communication portion 41 that communicates the first storage chamber 40 with the first hydraulic pump 7 (the suction port of the first hydraulic pump 7) It is formed by a hole formed to open to the inner circumferential surface 43. This hole can be formed by cutting, for example.

  The pump cover 72 is attached to the pump body 71 from the first side E1. The pump cover 72 supports the first seal portion 13 from the first side E1 (that is, restricts movement of the first seal portion 13 to the first side E1). Specifically, the pump cover 72 has a portion disposed radially inward of the first inner circumferential surface 43, and the surface facing the second side E2 in the portion extends with the first seal portion 13 They are arranged to face the direction E. In the present embodiment, the first inner circumferential surface 43 is formed with a first step portion 43a having a step surface facing the first side E1. That is, the portion of the first inner peripheral surface 43 on the first side E1 than the first stepped portion 43a is larger in diameter than the portion of the first inner peripheral surface 43 on the second side E2 than the first stepped portion 43a. Has been. And the 1st seal part 13 is arranged so that it may contact from the 1st side E1 to the 1st level difference part 43a. Therefore, the first seal portion 13 is positioned and held from both sides in the extending direction E by the first step portion 43 a and the pump cover 72. The first stepped portion 43a can be formed, for example, by cutting.

  As shown in FIG. 5, the second storage chamber 50 includes a second communication portion 51 that communicates with the second hydraulic pump 8, and a second opening 52 that communicates with the oil storage portion 31. It is formed to extend from 52 in a columnar shape. In the present embodiment, the extending direction E of the second storage chamber 50 is along the axial direction L. The second strainer 20 includes a second filtration part 21 that is inserted into the second storage chamber 50 from the second opening 52, a second suction port 24 that opens toward the oil storage part 31, and a second And a second communication oil passage 25 that communicates the suction port 24 and the second filtration part 21. Therefore, when the second hydraulic pump 8 is operated, the oil in the oil reservoir 31 is introduced into the second strainer 20 from the second suction port 24, and then passes through the second communication oil passage 25 to the second filtration unit. Reach 21. The second filtration part 21 has a part formed in a porous or mesh shape, and the oil that has reached the second filtration part 21 is filtered by passing through the part, and then the second communication part. The air is discharged to the outside of the second accommodation chamber 50 from the space 51 and supplied to the pump chamber (not shown) of the second hydraulic pump 8. The portion of the second strainer 20 excluding the second suction port 24 and the second filtration unit 21 is closed so that the oil flowing through the second communication oil passage 25 does not leak to the outside of the second strainer 20.

  In the present embodiment, the second filtering unit 21 is configured in the same manner as the first filtering unit 11 except for the length in the extending direction E. That is, the second filtering portion 21 includes a second cylindrical portion 21a corresponding to the first cylindrical portion 11a, a second hole 21b corresponding to the first hole 11b, and a second corresponding to the first filter member 11c. And a filter medium 21c. In the configuration of the second cylindrical portion 21a, the second hole portion 21b, and the second filter medium 21c provided in the second filtration portion 21, the extension direction E of the first storage chamber 40 is the extension direction E of the second storage chamber 50. Since it is the same as that of the structure of the 1st cylindrical part 11a with which the 1st filtration part 11 is equipped, the 1st hole part 11b, and the 1st filter medium 11c except the point replaced by, detailed description is abbreviate | omitted. The length in the extending direction E of the first filtering portion 11 (the first tubular portion 11a and the first filter medium 11c) is set according to the performance (maximum allowable flow rate etc.) required for the first strainer 10, The length in the extending direction E of the second filtration part 21 (second cylindrical part 21a and second filter medium 21c) is set according to the performance required for the second strainer 20 (maximum allowable flow rate and the like).

  The second strainer 20 further includes the second opening 52 side (the first side E1) with respect to the second filtering portion 21 in addition to the second filtering portion 21, the second suction port 24, and the second communication oil passage 25. ), The second seal portion 23 is provided so as to be in contact with the case 30 directly or via the second seal member 22. Thereby, at the time of the operation of the second hydraulic pump 8, it is possible to prevent the oil in the oil storage unit 31 from flowing from the second opening 52 to the second communication unit 51 without passing through the inside of the second strainer 20. That is, only the oil that has passed through the second filtering unit 21 can flow to the second communication unit 51.

  As shown in FIG. 5, in the present embodiment, the second seal portion 23 is disposed to be in contact with the case 30 via the second seal member 22. Further, in the present embodiment, the portion in contact with the second seal portion 23 in the case 30 is the inner circumferential surface (the second inner circumferential surface 53) of the second accommodation chamber 50. That is, in the present embodiment, the second seal portion 23 is disposed in contact with the second inner circumferential surface 53 via the second seal member 22. Specifically, the second seal portion 23 is formed in an annular plate shape (flange shape) having a diameter that fits the second inner peripheral surface 53, and is circumferentially formed on the outer peripheral surface of the second seal portion 23. An extending recessed groove is formed. In the present embodiment, an O-ring is used as the second seal member 22, and the second seal member 22 is mounted in this recessed groove. Thus, the second seal portion 23 is disposed in contact with the case 30 via the second seal member 22 mounted on the outer peripheral surface thereof. It is also possible to use a member other than the O-ring such as a liquid gasket as the second seal member 22.

  In the present embodiment, the second strainer 20 is disposed adjacent to the first hydraulic pump 7. Using such an arrangement configuration, in the present embodiment, the pump cover 72 for forming the pump chamber 70 of the first hydraulic pump 7 is used as a retainer for the second strainer 20 from the second storage chamber 50. doing. Specifically, as shown in FIG. 5, the pump cover 72 supports the second seal portion 23 from the first side E1 (that is, restricts the movement of the second seal portion 23 to the first side E1). doing). Specifically, the pump cover 72 has a portion disposed radially inward of the second inner circumferential surface 53, and the surface of the portion facing the second side E2 extends with the second seal portion 23 They are arranged to face the direction E. In the present embodiment, the second inner circumferential surface 53 is formed with a second step portion 53a having a step surface facing the first side E1. That is, the portion on the first side E1 in the second inner circumferential surface 53 than the second stepped portion 53a is larger in diameter than the portion on the second side E2 than the second stepped portion 53a in the second inner circumferential surface 53. It is done. And the 2nd seal part 23 is arranged so that it may contact from the 1st side E1 to the 2nd level difference part 53a. Therefore, the second seal portion 23 is positioned and held from both sides in the extending direction E by the second step portion 53 a and the pump cover 72. The second stepped portion 53a can be formed, for example, by cutting.

  In the present embodiment, the second strainer 20 is not disposed adjacent to the second hydraulic pump 8. And in this embodiment, as shown in FIG. 5, the 2nd communicating part 51 which makes the 2nd storage chamber 50 connect with the 2nd hydraulic pump 8 opens in the end of the 2nd side E2 in the 2nd storage chamber 50. Are formed by the holes. The second communication portion 51 communicates with the second hydraulic pump 8 via a second pipe 92 having one end inserted into the hole and a suction oil passage 80 formed in the case 30. .

  In the present embodiment, the size and shape of the first seal portion 13 and the second seal portion 23 are the same. That is, the size of the first seal portion 13 and the size of the second seal portion 23 are the same, and the shape of the first seal portion 13 and the shape of the second seal portion 23 are the same. Accordingly, in the present embodiment, the portion on the first side E1 of at least the first step portion 43a of the first inner circumferential surface 43 and the first step of the second step portion 53a of the second inner circumferential surface 53 are described. The size and shape are the same as the portion of the side E1.

  In the present embodiment, the first strainer 10 further includes a first tubular portion 16 formed in a tubular shape extending from the first seal portion 13 toward the oil storage portion 31. Then, at least a part of the first communication oil passage 15 (a part on the first suction port 14 side in the present embodiment) is formed inside the first tubular part 16, and the first seal part in the first tubular part 16 is formed. A first suction port 14 is formed at the end (tip) opposite to the 13th side. The first tubular portion 16 has a bent portion for directing the tip portion downward, and the first suction port 14 is formed to open downward. For example, the first tubular portion 16 is formed integrally with the first filtration portion 11 and the first seal portion 13 or is fixed to the first seal portion 13 by welding. Although the details will be omitted, the first strainer 10 rotates relative to the first accommodation chamber 40 (eg, relative to the axial center along the extending direction E) by engagement (key engagement) between the key and the key groove or the like. It is supported that rotation is impossible.

  Further, in the present embodiment, the second strainer 20 further includes a second tubular portion 26 formed in a tubular shape extending from the second seal portion 23 toward the oil storage portion 31. Then, at least a part of the second communication oil passage 25 (a part on the second suction port 24 side in the present embodiment) is formed inside the second tubular part 26, and the second seal part in the second tubular part 26 is formed. A second suction port 24 is formed at the end (tip) opposite to the 23 side. The second tubular portion 26 has a bent portion for directing the distal end portion downward, and the second suction port 24 is formed to open downward. For example, the second tubular portion 26 is formed integrally with the second filtration portion 21 and the second seal portion 23 or is fixed to the second seal portion 23 by welding. Although details are omitted, the second strainer 20 is supported so as to be unable to rotate relative to the second storage chamber 50 (relative rotation around the axis along the extending direction E) by key engagement or the like.

  Thus, the 1st strainer 10 is provided with the 1st tubular part 16, and the 2nd strainer 20 is set as the structure provided with the 2nd tubular part 26, The position and direction of the 1st inlet 14 are made into the 1st hydraulic pump. It is easy to set the position and direction in which air suction (air suction) is difficult to occur during the operation of 7, and the position and orientation of the second suction port 24 is generated when the second hydraulic pump 8 is operated. It is easy to make the position and orientation difficult. That is, the oil level of the oil reservoir 31 is a flat road, as shown in FIG. 2 as examples of the oil level of the oil reservoir 31 as the first oil level H1, the second oil level H2, and the third oil level H3. In a state where the vehicle is traveling straight at a constant speed (that is, a state where no inertial force is applied to the oil reservoir 31), the vehicle is along the horizontal plane as in the first oil surface H1, whereas when the vehicle is accelerated or decelerated, Like the second oil surface H2 and the third oil surface H3, the oil surface of the oil reservoir 31 is inclined with respect to the horizontal plane. In this regard, the first strainer 10 includes the first tubular portion 16, and the second strainer 20 includes the second tubular portion 26, so that the first suction port 14 and the second suction port 24 are second. It becomes easy to adopt a configuration that is disposed below both the oil level H2 and the third oil level H3. As a result, air suction occurs when the first hydraulic pump 7 and the second hydraulic pump 8 are operated. It is possible to make the configuration difficult.

Other Embodiments
Next, other embodiments of the vehicle drive transmission device will be described.

(1) In the above embodiment, the first seal portion 13 is disposed to be in contact with the first inner circumferential surface 43 via the first seal member 12, and the second seal portion 23 is the second seal member 22. The configuration arranged so as to be in contact with the second inner peripheral surface 53 is described as an example. However, the first seal member 12 is not limited to such a configuration, and the first seal member 13 extends from the first side E1 to the portion of the case 30 that partitions the first storage chamber 40 from the radially outer side. It can also be set as the structure arrange | positioned so that it may contact | connect. Further, the second seal portion 23 is arranged to be in contact with the portion of the case 30 that divides the second storage chamber 50 from the radial direction outer side from the first side E1 via the second seal member 22. You can also

(2) In the above embodiment, the configuration in which the size and shape of the first seal portion 13 and the second seal portion 23 are the same has been described as an example. However, the present invention is not limited to such a configuration, and one or both of the size and shape may be different between the first seal portion 13 and the second seal portion 23.

(3) In the above embodiment, the first seal portion 13 is disposed to be in contact with the case 30 via the first seal member 12, and the second seal portion 23 is provided to the case 30 via the second seal member 22. The configuration arranged so as to be in contact with the above has been described as an example. However, without being limited to such a configuration, the first seal portion 13 may be disposed so as to be in direct contact with the case 30. For example, the first seal portion 13 can be fitted to the first inner peripheral surface 43 by press fitting. Moreover, it can also be set as the structure arrange | positioned so that the 2nd seal | sticker part 23 may contact the case 30 directly. For example, the second seal portion 23 can be fitted to the second inner peripheral surface 53 by press fitting.

(4) In the above embodiment, the configuration in which the first strainer 10 includes the first tubular portion 16 and the second strainer 20 includes the second tubular portion 26 has been described as an example. However, without being limited to such a configuration, the first strainer 10 may be configured not to include the first tubular portion 16. In this case, the first suction port 14 is formed to open toward the first side E1. Further, the second strainer 20 may be configured not to include the second tubular portion 26. In this case, the second suction port 24 is formed to open toward the first side E1.

(5) In the above embodiment, the configuration in which the pump cover 72 supports both the first seal portion 13 and the second seal portion 23 from the first side E1 has been described as an example. However, the pump cover 72 is not limited to such a configuration, and only one of the first seal portion 13 and the second seal portion 23 (e.g., only the first seal portion 13) from the first side E1. The configuration to support or the pump cover 72 may be configured not to support any of the first seal portion 13 and the second seal portion 23 from the first side E1.

(6) In the above embodiment, the configuration in which the second storage chamber 50 in which the second strainer 20 is stored is formed integrally with the case 30 has been described as an example. However, without being limited to such a configuration, it is also possible to adopt a configuration in which the second storage chamber 50 is formed in a separate part different from the case 30.

(7) In the above embodiment, the configuration in which the drive transmission device 1 includes the second strainer 20 in addition to the first strainer 10 has been described as an example. However, without being limited to such a configuration, the drive transmission device 1 may be configured to include only the first strainer 10. In this case, both the 1st hydraulic pump 7 and the 2nd hydraulic pump 8 can be set as the structure which attracts | sucks the oil of the oil storage part 31 via the 1st strainer 10 which is a common strainer.

(8) In the above-described embodiment, the configuration in which both the first hydraulic pump 7 and the second hydraulic pump 8 are driven by the rotating member configuring the power transmission mechanism 6 has been described as an example. However, the present invention is not limited to such a configuration, and one or both of the first hydraulic pump 7 and the second hydraulic pump 8 are connected to an electric motor (for driving the pump) independent of the power transmission path by the power transmission mechanism 6. It can also be configured to be driven by a dedicated motor.

(9) In the above embodiment, the drive transmission device 1 has been described by way of example of the configuration including the second hydraulic pump 8 in addition to the first hydraulic pump 7. However, without being limited to such a configuration, the drive transmission device 1 may be configured to include only the first hydraulic pump 7.

(10) The configuration of the power transmission mechanism 6 shown in the above embodiment is an example, and the configuration of the power transmission mechanism 6 can be changed as appropriate. For example, the power transmission mechanism 6 may not include the counter gear mechanism 64, and the distribution output gear 65 and the output member 5 may be engaged with each other.

(11) In the above embodiment, the configuration in which the three driving force sources 2 are provided in the vehicle has been described as an example. However, without being limited to such a configuration, it is also possible to set the number of driving power sources 2 provided in the vehicle to a number other than "3" (for example, "1", "2", etc.).

(12) It should be noted that the configuration disclosed in each of the above-described embodiments may be applied in combination with the configuration disclosed in the other embodiment unless there is a contradiction (between the embodiments described as other embodiments. Combinations are also possible. With regard to other configurations, the embodiments disclosed herein are merely exemplary in all respects. Therefore, various modifications can be made as appropriate without departing from the spirit of the present disclosure.

[Overview of the above embodiment]
Hereinafter, an outline of the vehicle drive transmission device described above will be described.

  The vehicle drive transmission (1) is a power that transmits power between an input member (3) drivingly connected to the driving power source (2) and an output member (5) drivingly connected to the wheel (4). A transmission mechanism (6), a case (30) for housing the power transmission mechanism (6), an oil reservoir (31) formed in the case (30) for storing oil, and for filtering the oil A strainer (10), and a hydraulic pump (7) for sucking oil from the oil reservoir (31) through the strainer (10). The case (30) includes the strainer (10). A storage chamber (40) to be stored is integrally formed, and the storage chamber (40) is a communication portion (41) communicating with the hydraulic pump (7) and an opening communicating with the oil storage portion (31). And has a portion (42) and extends in a columnar shape from the opening (42) And the strainer (10) includes a filter (11) inserted into the storage chamber (40) from the opening (42) and the opening (42) with respect to the filter (11). ) Side, a seal part (13) disposed so as to be in contact with the case (30) directly or via a seal member (12), and an inlet (14) opening toward the oil storage part (31) And a communication oil passage (15) for communicating the suction port (14) with the filtration section (11).

According to this structure, the storage chamber (40) in which the strainer (10) is stored is formed integrally with the case (30). Therefore, the gap between the separate component and the case (30) or the separate component is fixed to the case (30), as compared with the case where the storage chamber (40) is formed on the separate component different from the case (30). Accordingly, the storage chamber (40) can be provided while suppressing an increase in the size of the vehicle drive transmission device (1). As a result, the vehicle drive transmission device (1) capable of suppressing an increase in size due to the provision of the strainer (10) can be realized. In addition, according to said structure, compared with the case where a storage chamber (40) is formed in another parts different from a case (30), the fixing structure for fixing the said another parts to a case (30) is unnecessary. There is also an advantage that the number of parts required for providing the strainer (10) can be reduced.
Moreover, according to said structure, in addition to a filtration part (11), an inlet (14), and a communicating oil path (15), a strainer (10) is further a storage chamber with respect to the filtration part (11). A seal portion (13) arranged to contact the case (30) directly or via the seal member (12) on the opening (42) side of (40) is provided. Therefore, when the hydraulic pump (7) is operated, only the oil that has passed through the filtration part (11) can flow to the communication part (41) that communicates with the hydraulic pump (7) in the storage chamber (40). It is.

  Here, it is preferable that the seal portion (13) is disposed so as to be in contact with the inner peripheral surface (43) of the storage chamber (40) directly or via the seal member (12).

  According to this configuration, the outer peripheral surface of the seal portion (13) can be a surface disposed so as to be in contact with the case (30) directly or via the seal member (12). Therefore, the sealing performance of the seal portion (13) can be appropriately secured while simplifying the structure for holding the seal portion (13) with respect to the case (30).

  The strainer (10) includes a tubular portion (16) formed in a tubular shape extending from the seal portion (13) toward the oil storage portion (31), and the tubular portion (16) includes the tubular portion (16). Preferably, at least a part of the communication oil passage (15) is formed, and the suction port (14) is formed at an end of the tubular portion (16) opposite to the seal portion (13) side. It is.

  According to this configuration, compared to the case where the strainer (10) does not include the tubular portion (16), the position and orientation of the suction port (14) are set so that air suction (air suction) is performed when the hydraulic pump (7) is operated. It becomes easy to set the position and orientation where it is difficult to generate.

  The pump chamber (70) of the hydraulic pump (7) includes a pump body (71) formed integrally with the case (30), and a pump cover (72) attached to the pump body (71). The pump cover is defined as a first side (E1) that is a side from the inside of the storage chamber (40) toward the opening (42) in the extending direction (E) of the storage chamber (40). It is preferable that (72) supports the seal portion (13) from the first side (E1).

  According to this configuration, the pump cover (72) for forming the pump chamber (70) can also be used as a retaining of the strainer (10) from the storage chamber (40). Therefore, the number of parts can be reduced and the size of the apparatus can also be reduced because a dedicated part for preventing such detachment is unnecessary.

  Moreover, the said filtration part (11) is formed in the cylinder shape extended along the extension direction (E) of the said storage chamber (40) from the said seal part (13), and the said communicating oil path (15) in the internal diameter side. It is preferable to communicate with the

  According to this configuration, by changing the length in the extension direction (E) of the filtration section (11), the cross-sectional area through which oil flows in the filtration section (11) can be adjusted. It is easy to ensure the performance necessary for

  The strainer (10) is a first strainer (10), the hydraulic pump (7) is a first hydraulic pump (7), the storage chamber (40) is a first storage chamber (40), and the communication The portion (41) is a first communication portion (41), the opening (42) is a first opening (42), the filtration portion (11) is a first filtration portion (11), and the sealing member ( 12) is a first seal member (12), the seal portion (13) is a first seal portion (13), the suction port (14) is a first suction port (14), and the communication oil passage (15) ) As a first communication oil passage (15), the vehicle drive transmission device (1) includes a second strainer (20) for filtering oil and the oil of the oil reservoir (31) as the second strainer. A second hydraulic pump (8) for suction through (20), and the case (3 ) Is integrally formed with a second storage chamber (50) in which the second strainer (20) is stored, and the second storage chamber (50) communicates with the second hydraulic pump (8). The second communication portion (51) and the second opening portion (52) communicating with the oil storage portion (31) are formed so as to extend from the second opening portion (52) in a columnar shape. The strainer (20) is inserted into the second storage chamber (50) through the second opening (52) and the second filtration unit (21) with respect to the second filtration unit (21). A second seal (23) disposed to be in contact with the case (30) directly or via a second seal member (22) on the side of the second opening (52); and the oil reservoir (31) ) Opening to the second suction port (24), the second suction port (24) and the second suction port. A second communication oil passage (25) communicating with the excess portion (21), and the first seal portion (13) and the second seal portion (23) have the same size and shape Is preferred.

According to this configuration, both the first storage chamber (40) in which the first strainer (10) is stored and the second storage chamber (50) in which the second strainer (20) is stored in the case (30) Since it is integrally formed, when the vehicle drive transmission device (1) includes the first strainer (10) and the second strainer (20), the first strainer (10) and the second strainer (20) The vehicle drive transmission device (1) capable of suppressing the increase in size due to the provision can be realized.
Furthermore, according to the above configuration, since the first seal portion (13) and the second seal portion (23) have the same size and shape, the first strainer (10) and the second strainer (20) And the seal structure by the first seal portion (13) and the seal structure by the second seal portion (23) can be used in common to reduce the cost. .

  The drive transmission apparatus for vehicles which concerns on this indication should just be able to show at least one among each effect mentioned above.

1: Drive transmission device (drive transmission device for vehicles)
2: Driving force source 3: Input member 4: Wheel 5: Output member 6: Power transmission mechanism 7: First hydraulic pump (hydraulic pump)
8: Second hydraulic pump 10: First strainer (strainer)
11: 1st filtration part (filtration part)
12: First seal member (seal member)
13: 1st seal part (seal part)
14: First suction port (suction port)
15: First communication oil passage (communication oil passage)
16: First tubular portion (tubular portion)
20: 2nd strainer 21: 2nd filtration part 22: 2nd seal member 23: 2nd seal part 24: 2nd inlet 25: 2nd communicating oil path 30: Case 31: Oil storage part 40: 1st storage chamber (Containment room)
41: first communication portion (communication portion)
42: 1st opening part (opening part)
43: First inner circumferential surface (inner circumferential surface of storage chamber)
50: 2nd storage chamber 51: 2nd communication part 52: 2nd opening part 70: Pump chamber 71: Pump body 72: Pump cover E: Extension direction E1: 1st side

Claims (6)

A power transmission mechanism for transmitting power between an input member drivingly connected to the driving force source and an output member drivingly connected to the wheels;
A case housing the power transmission mechanism;
An oil reservoir formed in the case for storing oil;
A strainer for filtering oil;
A hydraulic pump that sucks the oil in the oil reservoir through the strainer,
A storage chamber in which the strainer is stored is integrally formed in the case,
The storage chamber has a communication portion that communicates with the hydraulic pump and an opening that communicates with the oil storage portion, and is formed to extend in a column shape from the opening.
The strainer includes a filtering part that is inserted into the housing chamber from the opening, and a seal that is disposed in contact with the case directly or via a seal member on the opening side with respect to the filtering part. A vehicle drive transmission device comprising: a portion, a suction port that opens toward the oil storage unit, and a communication oil passage that communicates the suction port and the filtration unit.   The vehicle drive transmission device according to claim 1, wherein the seal portion is disposed to be in contact with the inner peripheral surface of the storage chamber directly or via the seal member. The strainer includes a tubular portion formed in a tubular shape extending from the seal portion toward the oil storage portion,
At least a portion of the communication oil passage is formed inside the tubular portion,
The vehicle drive transmission device according to claim 1 or 2, wherein the suction port is formed at an end of the tubular portion opposite to the seal portion. The pump chamber of the hydraulic pump is formed between a pump body formed integrally with the case, and a pump cover attached to the pump body,
The pump cover supports the seal portion from the first side, with the side facing the opening from the inside of the storage chamber in the extension direction of the storage chamber as the first side. The drive transmission apparatus for vehicles as described in any one.   The said filtration part is formed in the cylinder shape extended along the extension direction of the said storage chamber from the said seal part, and is connected to the said communicating oil path in the internal diameter side. The drive transmission apparatus for vehicles as described. The strainer is a first strainer, the hydraulic pump is a first hydraulic pump, the storage chamber is a first storage chamber, the communication portion is a first communication portion, and the opening is a first opening. The portion is a first filtration portion, the seal member is a first seal member, the seal portion is a first seal portion, the suction port is a first suction port, and the communication oil passage is a first communication oil passage.
A second strainer for filtering the oil,
A second hydraulic pump for sucking the oil in the oil reservoir through the second strainer;
The case is integrally formed with a second storage chamber in which the second strainer is stored,
The second storage chamber has a second communicating portion communicating with the second hydraulic pump, and a second opening communicating with the oil reservoir, and is formed to extend in a columnar shape from the second opening. ,
The second strainer is a second filtration portion inserted into the second storage chamber from the second opening, and directly or secondly on the second opening side with respect to the second filtration portion. A second seal portion arranged to be in contact with the case via a seal member, a second suction port opening toward the oil storage portion, and a communication between the second suction port and the second filtration portion A second communication oil passage,
The vehicle drive transmission device according to any one of claims 1 to 5, wherein the first seal portion and the second seal portion have the same size and shape.

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