JP2020128780A - Lubricant supply device - Google Patents

Abstract

To control lubricant supply in accordance with rotational speed.SOLUTION: A lubricant supply device 1 includes an oil passage 2b and a lubricant collecting member 3 with an oil hole 3c. The lubricant collecting member 3 includes: a catch part 3d for capturing lubricant that scatters with centrifugal force and leading the lubricant to the oil hole 3c; and a movable part for moving the oil hole 3c in a radial direction to communicate or block the oil hole 3c from the oil passage 2b.SELECTED DRAWING: Figure 1

Description

The present invention relates to a lubricating oil supply device.

For example, as shown in Patent Document 1, a configuration is known in which a rotating shaft is rotated and centrifugal force is used to guide lubricating oil from an axial center to an oil hole.

JP, 2010-65741, A

However, depending on the device, there is a demand to cut off the supply of the lubricating oil or to supply the lubricating oil according to the rotation speed.

The present invention has been made in view of such a technical problem, and an object thereof is to control the supply of lubricating oil according to the rotation speed.

According to an aspect of the present invention, a lubricating oil supply device includes an oil passage and a lubricating oil collecting member having an oil hole, and the lubricating oil collecting member captures lubricating oil scattered by centrifugal force. It is characterized by having a catch portion that guides the oil hole to the oil hole and a moving portion that connects or blocks the oil hole and the oil passage by moving the oil hole in the radial direction.

According to the above aspect, the catch hole catches the lubricating oil scattered by the centrifugal force, whereby the oil hole can be moved. Since the centrifugal force of the lubricating oil captured by the catch portion depends on the rotation speed of the lubricating oil collection member, the communication between the oil hole and the oil passage or the disconnection between the oil hole and the oil passage depends on the rotation speed of the lubricating oil collection member. Can create patterns. Therefore, the supply of the lubricating oil can be controlled according to the rotation speed.

FIG. 1 is a schematic configuration diagram of a drive device including a lubricating oil supply device according to this embodiment. FIG. 2 is a cross-sectional view showing a state of the lubricating oil supply device according to the present embodiment at a speed lower than a predetermined rotation speed. FIG. 3 is a plan view showing a state of the lubricating oil supply device according to the present embodiment at a speed lower than a predetermined rotation speed. FIG. 4 is a cross-sectional view showing a state of the lubricating oil supply device according to this embodiment at a predetermined rotation speed or higher. FIG. 5 is a plan view showing a state of the lubricating oil supply device according to this embodiment at a predetermined rotation speed or higher. FIG. 6 is a cross-sectional view showing a state in which the lubricating oil supply device according to the modified example is lower than a predetermined rotation speed.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a schematic configuration diagram of a lubricating oil supply device 1 according to an embodiment of the present invention. The lubricating oil supply device 1 is applied to, for example, a drive device 100 for driving an electric vehicle. Hereinafter, the case where the lubricating oil supply device 1 is applied to the drive device 100 of the electric vehicle will be described as an example, but the lubricating oil supply device 1 can also be applied to other devices such as an automatic transmission.

The drive device 100 includes a motor 10 as a drive source, a counter shaft 20 provided in parallel with an output shaft 11 of the motor 10, a differential gear device 30 provided coaxially with the output shaft 11 of the motor 10. The first reduction gear pair G1 provided between the output shaft 11 and the counter shaft 20, the second reduction gear pair G2 provided between the counter shaft 20 and the differential gear device 30, and these are housed. And a case 40.

The case 40 is provided with a partition wall 43 that divides the interior thereof into a motor chamber 41 in which the motor 10 is provided and a gear chamber 42 in which the differential gear device 30 and the like are provided. Lubricating oil for lubricating the gears and the bearings is stored in the gear chamber 42.

The motor 10 has a cylindrical rotor 12 fixed to the output shaft 11, and a stator 13 fixed to the case 40 and provided so as to be separated from the rotor 12 by a slight distance. The output shaft 11 is provided so that one end thereof penetrates the partition wall 43 and projects into the gear chamber 42. The output shaft 11 is rotatably supported by bearings 51 and 52 fixed to the case 40.

The counter shaft 20 is rotatably supported in the gear chamber 42 by bearings 53 and 54 fixed to the case 40. Although the counter shaft 20 is arranged above the output shaft 11 and the differential gear device 30 in FIG. 1, the counter shaft 20 is arranged laterally or below the output shaft 11 and the differential gear device 30. May be.

The differential gear device 30 includes a housing 33 and a differential mechanism 35 housed in the housing 33. The differential mechanism 35 includes a pair of small gears 35a and 35b rotatably supported by the housing 33, and large gears 35c and 35d that mesh with the small gears 35a and 35b and are fixed to the output shafts 31 and 32. The small gears 35a and 35b and the large gears 35c and 35d are formed of bevel gears, for example.

The housing 33 is rotatably supported by bearings 55 and 56, both ends of which are fixed to the case 40.

A large gear 35c is fixed to one end of the output shaft 31. The other end of the output shaft 31 penetrates the housing 33, passes through the inside of the output shaft 11 and is drawn out of the case 40, and is connected to the drive wheel T. The other end of the output shaft 31 is rotatably supported by a bearing 57 fixed to the case 40.

A large gear 35d is fixed to one end of the output shaft 32. The other end of the output shaft 32 penetrates the housing 33, is drawn out of the case 40, and is connected to the drive wheel T. The other end of the output shaft 32 is rotatably supported by a bearing 58 fixed to the case 40.

The first reduction gear pair G1 includes a first drive gear 14 fixed to one end side of the output shaft 11, and a first driven gear 21 fixed to the counter shaft 20 and meshing with the first drive gear 14. The first driven gear 21 is formed to have a larger number of teeth than the first drive gear 14. As a result, the rotation of the output shaft 11 of the motor 10 is decelerated by the first reduction gear pair G1 and transmitted to the counter shaft 20.

The second reduction gear pair G2 is fixed to the counter shaft 20 with a second drive gear 22 fixed to the first driven gear 21 at a distance, and to the outer peripheral surface of a housing 33 of the differential gear device 30 described later. A second driven gear 34 that meshes with the two-drive gear 22. The second driven gear 34 is formed to have more teeth than the second drive gear 22. Accordingly, the rotation of the counter shaft 20 is reduced by the second reduction gear pair G2 and transmitted to the differential gear device 30.

In the drive device 100 configured as described above, the output of the motor 10 is the output shaft 11, the first reduction gear pair G1, the counter shaft 20, the second reduction gear pair G2, the differential gear device 30, and the output shaft 31, It is decelerated and transmitted to the drive wheels T via 32.

The drive device 100 further includes a catch tank 60 that is provided in an upper portion of the case 40 to store the lubricating oil, and a lubricating oil supply device 1 that sends the lubricating oil stored in the gear chamber 42 to the catch tank 60. Prepare

The catch tank 60 has a plurality of holes 61 at the bottom. The lubricating oil in the catch tank 60 drops through the holes 61 toward the gears and bearings to be lubricated. It should be noted that the catch tank 60 need not be provided at the top of the case 40 as long as it is provided at a position higher than the oil level of the lubricating oil stored in the lower portion of the gear chamber 42 when the vehicle is stopped. Good.

The catch tank 60 is in constant communication with an oil passage 2b of the plate 2 described later through the flow passage 43b formed in the partition wall 43 and the annular groove 43a.

As shown in FIGS. 1 to 4, a lubricating oil supply device 1 includes a disc-shaped plate 2 fixed to an output shaft 11, and a lubricating oil collecting member provided in a recess 2 a formed in the plate 2. 3 and.

The plate 2 has an oil passage 2b penetrating the plate 2 from the bottom surface of the recess 2a in the rotation axis direction of the output shaft 11, and a key groove 2c provided on the bottom surface of the recess 2a. The oil passage 2b and the key groove 2c are provided on the same line in the radial direction of the plate 2 (see FIG. 3, etc.). A plurality of oil passages 2b and key grooves 2c are provided at equal intervals around the rotation axis of the output shaft 11. In the present embodiment, the oil passage 2b and the key groove 2c are provided at four positions every 90 degrees around the axis of the output shaft 11.

The lubricating oil collecting member 3 is formed in a disc shape by the four flat plate-shaped plates 3a. The plate 3a is a fan-shaped flat plate having a central angle of about 90 degrees. The lubricating oil collecting member 3 is formed in a disc shape by combining these.

The plate 3a includes a flat plate-shaped main body portion 3b, an oil hole 3c penetrating the main body portion 3b in the rotation axis direction of the output shaft 11, and a catch portion 3d that captures lubricating oil scattered by centrifugal force and guides it to the oil hole 3c. And a guide rib 3e that guides the lubricating oil stored in the gear chamber 42 to the catch portion 3d, and a key 3f that is formed on the side surface that contacts the plate 2 and that engages with the key groove 2c.

The plate 3a is housed in the recess 2a of the plate 2 such that the key groove 2c and the key 3f engage with each other. A biasing member 4 that biases the plate 3a inward in the radial direction is provided between the outer peripheral surface of the plate 3a and the inner peripheral surface of the recess 2a of the plate 2. Although not shown, a retaining member is provided to prevent the plate 3a from coming out of the recess 2a of the plate 2.

The length of the key groove 2c in the longitudinal direction is formed to be longer than the length of the key 3f in the longitudinal direction. This allows the plate 3a to move in the radial direction along the keyway 2c in the recess 2a.

The catch portion 3d includes a wall portion 3g that is formed so as to stand upright on the outer edge portion of the body portion 3b and extends in the circumferential direction, and a return portion 3h that extends radially inward from the tip of the wall portion 3g.

The oil hole 3c is provided near the wall 3g in the main body 3b. The oil hole 3c is formed so as to communicate with the oil passage 2b when the plate 2 moves radially outward and to block communication with the oil passage 2b when the plate 2 moves radially inward. It

The guide rib 3e is formed so as to stand upright on the side surface of the main body 3b on the same side as the catch 3d. Further, the guide rib 3e is formed in an arc shape that extends in the radial direction and projects on the front side in the rotational direction of the output shaft 11. The outer end of the guide rib 3e is formed at a position adjacent to the oil hole 3c and in front of the oil hole 3c in the rotation direction.

The plate 3a is formed so as to extend in the circumferential direction at one end of the wall portion 3g, and a wrap portion 3i that covers a part of the outer peripheral surface of the adjacent plate 3a and a wrap portion 3i that is formed on the other side of the wall portion 3g are formed. And a notch 3j that engages. The function of the wrap portion 3i will be described later.

In the drive device 100, the oil level is at the height H1 when the motor 10 is stopped (see FIG. 1). When the oil level is at the height H1, the bearings 52, 55, 56, the first drive gear 14, etc. are partially immersed in the lubricating oil. When the motor 10 is driven in this state, the output shaft 11 and the housing 33 rotate, so that the inner rings of the bearings 52, 55, 56 and the first drive gear 14 also rotate. As a result, the lubricating oil is scraped up and scattered inside the gear chamber 42, so that each element is lubricated.

When the rotation speed of the motor 10 increases, the rotation speeds of the inner rings of the bearings 52, 55, 56, the first drive gear 14, etc. also increase accordingly. When the rotation speed increases in this way, the rotation resistance (stirring resistance) of the bearings 52, 55, 56 and the first drive gear 14 due to the lubricating oil increases accordingly. When the rotation resistance increases in this way, the electric power consumption of the electric vehicle decreases. Therefore, in the present embodiment, when the rotation speed of the motor 10 increases, the lubricating oil stored in the gear chamber 42 is sent to the catch tank 60 by the lubricating oil supply device 1 to increase the height of the oil surface. To lower the rotational resistance. The operation of the lubricating oil supply device 1 will be specifically described below.

When the motor 10 starts rotating from a stopped state, the output shaft 11 rotates, and the plates 2 and 3a also start rotating. When the plate 3a rotates, the lubricating oil is scraped up by the guide ribs 3e formed on the plate 3a and guided to the catch portion 3d. At this time, the lubricating oil stored in the lower portion of the gear chamber 42 is scraped up and scattered by the second driven gear 34 and the like, and the lubricating oil is supplied to each gear and the bearing.

When the lubricating oil is guided to the catch portion 3d by the guide rib 3e, the centrifugal force of the lubricating oil acts on the catch portion 3d, and the plate 3a tends to move radially outward. However, when the rotation speed of the output shaft 11 (the rotation speed of the guide rib 3e) is less than the predetermined rotation speed N1, the biasing force of the biasing member 4 is due to the lubricating oil stored in the catch portion 3d and the weight of the plate 3a. Since the total centrifugal force exceeds the force, the plate 3a is held in the position shown in FIGS. At the positions shown in FIGS. 2 and 3, the communication between the oil passage 2b and the oil hole 3c is blocked. Therefore, the lubricating oil in the catch portion 3d is not sent to the catch tank 60. When the communication between the oil passage 2b and the oil hole 3c is cut off, the lubricating oil that cannot be stored in the catch portion 3d scatters in the gear chamber 42 and drops to the lower portion of the gear chamber 42.

When the rotation speed of the output shaft 11 of the motor 10 (the rotation speed of the guide rib 3e) becomes equal to or higher than the predetermined rotation speed N1, the total force of the lubricating oil stored in the catch portion 3d and the centrifugal force due to the own weight of the plate 3a is applied. Since the urging force of the urging member 4 is exceeded, the plate 3a moves radially outward against the urging force of the urging member 4, and the oil passage 2b and the oil hole 3c communicate with each other (see FIGS. 4 and 5). ). At this time, since the key groove 2c formed on the plate 2 and the key 3f formed on the plate 3a are engaged, the plate 3a moves radially outward along the key groove 2c. When the oil passage 2b and the oil hole 3c communicate with each other, the lubricating oil in the catch portion 3d is sent to the catch tank 60 through the annular groove 43a formed in the partition wall 43 and the flow passage 43b.

When the plates 3a move radially outward, a gap is created between the adjacent plates 3a (see FIG. 5). Therefore, the lubricating oil may leak through this gap. However, in the present embodiment, the plate 3a is provided with the wrap portion 3i that covers a part of the outer peripheral surface of the adjacent plates 3a. This can prevent the formation of a gap between the catch portions 3d of the adjacent plates 3a. When the lubricating oil collecting member 3 is rotating at the predetermined rotation speed N1 or higher, the lubricating oil is guided to the catch portion 3d by the centrifugal force, so that the gap between the catch portions 3d of the adjacent plates 3a is By preventing the generation, the leakage of lubricating oil can be effectively prevented.

When the rotation speed of the output shaft 11 of the motor 10 becomes equal to or higher than the predetermined rotation speed N1 and the lubricating oil stored in the lower portion of the gear chamber 42 is sent to the catch tank 60 by the lubricating oil supply device 1, the lubricating oil is supplied. The height of the oil surface of (1) is decreased (height H2 in FIG. 1), and the bearings 52, 55, 56, the first drive gear 14, and the like are exposed on the oil surface of the lubricating oil. As a result, the rotational resistance (agitation resistance) of the bearings 52, 55, 56 and the first drive gear 14 due to the lubricating oil can be suppressed.

The lubricating oil supplied to the catch tank 60 drops through the hole 61, and the lubricating oil in the catch tank 60 drops through the hole 61 toward each gear and bearing. As a result, each gear and bearing can be lubricated without scattering the lubricating oil by the first drive gear 14 or the like.

When the rotation speed of the output shaft 11 of the motor 10 decreases and becomes less than the predetermined rotation speed N1, the urging force of the urging member 4 is the sum of the lubricating oil stored in the catch portion 3d and the centrifugal force due to the own weight of the plate 3a. Since the force exceeds the force, the plate 3a is moved radially inward by the urging force of the urging member 4, and the communication between the oil passage 2b and the oil hole 3c is blocked (see FIGS. 2 and 3).

Even when the rotation speed is equal to or higher than the predetermined rotation speed N1, if the oil level of the lubricating oil is lowered to the height H2 and the amount of the lubricating oil in the catch portion 3d is reduced, the centrifugal outward force due to the centrifugal force is increased. descend. Also in this case, if the urging force of the urging member 4 exceeds the total force of the lubricating oil stored in the catch portion 3d and the centrifugal force due to the weight of the plate 3a, the plate 3a is urged by the urging member 4. The urging force moves radially inward to cut off the communication between the oil passage 2b and the oil hole 3c.

As described above, in the present embodiment, when the rotation speed of the output shaft 11 of the motor 10 becomes equal to or higher than the predetermined rotation speed N1, the oil passage 2b and the oil hole 3c communicate with each other, and the lubricating oil supply device 1 lowers the gear chamber 42. The lubricating oil stored in the tank is sent to the catch tank 60. Thereby, the rotational resistance (stirring resistance) of the bearings 52, 55, 56, the first drive gear 14, etc. can be suppressed. Further, according to the present embodiment, when the rotation speed of the output shaft 11 of the motor 10 is lower than the predetermined rotation speed N1, the lubricating oil is scraped up by the first drive gear 14 or the like to lubricate each gear and bearing. Even when the rotation speed is equal to or higher than the predetermined rotation speed N1, the lubricating oil can be dropped from the hole 61 of the catch tank 60 to lubricate each gear and bearing. That is, in the present embodiment, by controlling the supply of the lubricating oil according to the rotation speed, it is possible to reliably perform the lubrication of each gear and the bearing while suppressing the rotation resistance due to the lubricating oil.

In the above embodiment, the centrifugal force of the lubricating oil in the catch 3d is used as the means for moving the plate 3a, but instead of this, an electromagnetic actuator or the like may be used as the means for moving the plate 3a. A driving device may be used. When the actuator is used, the rotation speed may be detected by the rotation speed sensor to control the actuator.

Further, the biasing member 4 provided in the radial direction has been described as an example of the biasing member for biasing the plate 3a, but instead of this, an annular biasing member is provided on the outer circumference of the lubricating oil collecting member 3. Alternatively, the plate 3a may be urged by the urging force of the annular urging member in the inner diameter direction.

Next, a modified example of the present embodiment will be described with reference to FIG.

In the modification shown in FIG. 6, the case where the catch tank 60 is not provided and the lubricating oil supply device 1 positively supplies the lubricating oil to the specific bearings and gears when the motor 10 has a low rotation speed will be described. To do.

In the modified example, when the rotation speed of the output shaft 11 of the motor 10 is lower than the predetermined rotation speed N2, the lubricating oil supply device 1 allows the oil passage 2b and the oil hole 3c to communicate with each other, thereby rotating the output shaft 11 of the motor 10. When the speed is equal to or higher than the predetermined rotation speed N2, the communication between the oil passage 2b and the oil hole 3c is cut off. Although not shown, the flow path 43b is formed so as to guide the lubricating oil to the vicinity of a bearing or a gear that requires positive lubrication at a low rotation speed.

In the modified example configured as described above, when the rotation speed of the output shaft 11 of the motor 10 is less than the predetermined rotation speed N2, the oil passage 2b and the oil hole 3c are in communication with each other, and thus the same as in the above embodiment. Moreover, the lubricating oil stored in the lower portion of the gear chamber 42 is scraped up by the guide ribs 3e formed on the plate 3a and guided to the catch portion 3d. The lubricating oil in the catch portion 3d is sent to the bearing or gear to be lubricated through the annular groove 43a formed in the partition wall 43 and the flow passage 43b.

When the rotation speed of the output shaft 11 of the motor 10 becomes equal to or higher than the predetermined rotation speed N2, the plate 3a moves radially outward, and the communication between the oil passage 2b and the oil hole 3c is cut off. As a result, the oil supply to the bearing or gear to be lubricated is stopped through the flow path 43b. At this time, the amount of the lubricating oil scraped up and scattered by the second driven gear 34 and the like increases, so that the bearing or gear to be lubricated is not insufficiently lubricated.

As described above, in this modification, when the rotation speed of the output shaft 11 of the motor 10 is lower than the predetermined rotation speed N2, the oil passage 2b and the oil hole 3c communicate with each other, and lubricate the bearing or gear to be lubricated. This can prevent a shortage of lubricating oil. Further, according to this modification, when the rotation speed of the output shaft 11 of the motor 10 is equal to or higher than the predetermined rotation speed N2, the lubricating oil is sufficiently scraped up by the second driven gear 34 and the like, so that the bearing to be lubricated is Or the gears can be well lubricated. That is, also in the present modification, by controlling the supply of the lubricating oil according to the rotation speed, positive lubrication is possible when the rotation speed is lower than the predetermined rotation speed N2, and also when the rotation speed is higher than the predetermined rotation speed N2. The gears and bearings can be reliably lubricated.

The operational effects of the above-described embodiment configured as described above will be collectively described.

The lubricating oil supply device 1 of the present embodiment has an oil passage 2b and a lubricating oil collecting member 3 having an oil hole 3c, and the lubricating oil collecting member 3 captures the lubricating oil scattered by centrifugal force. 3d that guides to the oil hole 3c and a moving portion that connects or cuts off the oil hole 3c and the oil passage 2b by moving the oil hole 3c in the radial direction (catching portion 3d, actuator, biasing member 4) And.

In the lubricating oil supply device 1, the catch portion 3d captures the lubricating oil scattered by the centrifugal force, so that the oil hole 3c can be moved. The centrifugal force of the lubricating oil captured by the catch portion 3d depends on the rotational speed of the lubricating oil collecting member 3 (the rotational speed of the output shaft 11). Therefore, according to the lubricating oil supply device 1, two patterns, that is, communicating or blocking the oil hole 3c and the oil passage 2b, are created according to the rotating speed of the lubricating oil collecting member 3 (the rotating speed of the output shaft 11). You can That is, according to the lubricating oil supply device 1, the supply of the lubricating oil can be controlled according to the rotation speed (effect of the invention according to claim 1).

In the lubricating oil supply device 1, the lubricating oil collecting member 3 has a guide rib 3e that guides the lubricating oil to the catch portion 3d.

Oil can be efficiently sent to the catch portion 3d and a large amount of oil can be sent to the oil hole 3c (effect of the invention according to claim 2).

In the lubricating oil supply device 1, the catch portion 3d also serves as the moving portion.

When a centrifugal force is applied, a thrust force is applied to the catch portion 3d in the radially outward direction, and the oil hole 3c moves to communicate with the oil passage 2b. Since the catch part 3d itself also serves as the moving part, a separate actuator or the like is not required, and the number of parts can be reduced (the effect of the invention according to claim 3).

The lubricating oil supply device 1 has a biasing member 4 that pushes the catch portion 3d back toward the inner peripheral side.

By adjusting the urging force of the urging member 4, the threshold value of the centrifugal force that shuts off the oil passage 2b and the oil hole 3c can be determined. As a result, it is possible to automatically perform control as intended (effect of the invention according to claim 4).

The lubricating oil supply device 1 has a catch tank 60 that stores the lubricating oil, and the oil passage 2b supplies the lubricating oil to the catch tank 60 and scatters the lubricating oil toward the catch portion 3d. 11. If the rotation speed of the guide rib 3e) is less than the predetermined rotation speed N1, the oil passage 2b and the oil hole 3c are blocked, and the rotation speed of the rotating member (the output shaft 11, the guide rib 3e) is equal to or higher than the predetermined rotation speed N1. In this case, the oil passage 2b and the oil hole 3c are communicated with each other.

When the rotation speed is equal to or higher than the predetermined rotation speed N1, the oil passage 2b and the oil hole 3c communicate with each other, and the lubricating oil is sent to the catch tank 60, so that the oil level can be lowered. Thereby, the rotation resistance (stirring resistance) can be reduced. Further, when the rotational speed is less than the predetermined rotation speed N1, the oil passage 2b and the oil hole 3c are cut off, so that the oil level can be raised (the effect of the invention according to claim 5).

In the lubricating oil supply device 1, the rotation speed of the rotating member (the output shaft 11, the guide rib 3e) for feeding the lubricating oil to the bearing through the oil passage 2b and scattering the lubricating oil toward the catch portion 3d is less than the predetermined rotation speed N2. In the case of, the oil passage 2b and the oil hole 3c are communicated, and when the rotation speed of the rotating member (the output shaft 11, the guide rib 3e) is equal to or higher than the predetermined rotation speed N2, the oil passage 2b and the oil hole 3c are cut off. It

When the rotational speed is lower than the predetermined rotation speed N2, the oil passage 2b and the oil hole 3c communicate with each other, so that the lubricating oil can be supplied to, for example, a component that requires lubrication (effect of the invention according to claim 6).

The lubricating oil supply device 1 is provided in an electric vehicle having a motor 10 as a drive source.

By using the lubricating oil supply device 1, it is possible to perform control in consideration of the rotational resistance (stirring resistance) due to the lubricating oil, so that it is possible to improve power consumption (the effect of the invention according to claim 7).

Although the embodiments of the present invention have been described above, the above embodiments merely show one application example of the present invention, and the technical scope of the present invention is limited to the specific configurations of the above embodiments. is not.

In the above embodiment, the oil passage 2b and the oil hole 3c are provided at four places, but the number may be selected at an appropriate time. Further, although the lubricating oil collecting member 3 is configured by the four plates 3a, the present invention is not limited to this, and may be two or three plates or five or more.

100 Drive device 1 Lubricating oil supply device 2 Plate 2b Oil passage 3 Lubricating oil collecting member 3a Plate 3c Oil hole 3d Catch part (moving part)
3e Guide rib 4 Biasing member (moving part)
10 Motor 11 Output Shaft 30 Differential Gear Device 41 Motor Chamber 42 Gear Chamber 43 Partition Wall 43a Annular Groove 43b Flow Path 60 Catch Tank

Claims (7)

Oil passage,
A lubricating oil collecting member having an oil hole,
The lubricating oil collecting member captures the lubricating oil scattered by centrifugal force and guides it to the oil hole, and communicates the oil hole with the oil passage by moving the oil hole in the radial direction. A lubricating oil supply device, comprising: a moving part for shutting off the moving part. The lubricating oil supply device according to claim 1,
The lubricating oil collecting member includes a guide rib that guides the lubricating oil to the catch portion. In the lubricating oil supply device according to claim 1 or 2,
The lubricating oil supply device, wherein the catch portion also serves as the moving portion. In claim 3,
A lubricating oil supply device comprising a biasing member that pushes the catch portion back toward the inner peripheral side. The lubricating oil supply device according to any one of claims 1 to 4,
Has a catch tank that stores lubricating oil,
The oil passage sends lubricating oil to the catch tank,
When the rotation speed of the rotating member that scatters the lubricating oil toward the catch portion is less than a predetermined rotation speed, the oil passage and the oil hole are shut off,
The lubricating oil supply device, wherein the oil passage and the oil hole are communicated with each other when the rotation speed of the rotating member is equal to or higher than the predetermined rotation speed. The lubricating oil supply device according to any one of claims 1 to 4,
The oil passage feeds lubricating oil to the bearing,
When the rotation speed of the rotating member that scatters the lubricating oil toward the catch portion is lower than a predetermined rotation speed, the oil passage and the oil hole are communicated with each other,
The lubricating oil supply device, wherein when the rotational speed of the rotating member is equal to or higher than the predetermined rotational speed, the oil passage and the oil hole are shut off from each other. The lubricating oil supply device according to any one of claims 1 to 6,
The lubricating oil supply device is provided in an electric vehicle having a motor as a drive source.

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