JP7179267B2 - Rotating part lubricator - Google Patents

Description

The present invention relates to a rotating part provided with a rotating part that rotates upon receiving power from a power source in a vehicle, and a reservoir that stores lubricating oil to be supplied and submerges at least a part of the rotating part. It relates to the technical field of lubricating devices.

2. Description of the Related Art A power transmission device for a vehicle is provided with a large number of rotating parts that rotate by receiving power from a power source such as an engine. Examples include various gears and pulleys in CVT (Continuously Variable Transmission). Examples of various gears include a drive gear for an oil pump used as a hydraulic source for hydraulic oil and lubricating oil for operating a power transmission device.

Here, in some cases, the oil pump of the power transmission device is provided with a rotating portion lubricating device having a storage chamber for storing lubricating oil so as to submerge at least a part of the driving gear.
FIG. 8 is a diagram for explaining the configuration of a rotating part lubricating device 100 as a conventional example.
The oil pump is, for example, an internal gear type oil pump, and has a drive shaft 101 connected to an internal gear and a drive gear 102 connected to the drive shaft 101 . Power from an input shaft 103 driven to rotate by a power source such as an engine is transmitted to the drive gear 102 via a chain 104 . As a result, the driving gear 102 is rotationally driven and the oil pump performs a pumping operation.

The rotating part lubricating device 100 includes a storage chamber 105 in which a portion of the drive shaft 101 and the drive gear 102, a portion of the input shaft 103, and the chain 104 are arranged. A wall of the storage chamber 105 is formed with an oil supply hole 106 for supplying lubricant to the storage chamber 105 and an oil drain hole 107 for discharging the stored lubricant to the outside of the storage chamber 105. .

In the rotating portion lubricating device 100 configured as described above, the oil level of the lubricating oil stored in the storage chamber 105 is adjusted to approximately the height of the oil drain hole 107 .

In addition, the following Patent Documents 1 to 3 can be cited as related prior arts.

JP 2015-212571 A JP 2012-67839 A JP 2009-275886 A

Here, when the oil pump starts to operate, that is, when the drive gear 102 rotates at a low speed, it is desirable to use a large amount of lubricating oil in order to prevent seizure of rotating parts such as the drive shaft 101 . On the other hand, when the driving gear 102 rotates at a high speed, if the amount of lubricating oil is large, the driving efficiency of the oil pump is lowered due to an increase in agitation resistance.
FIG. 9 illustrates an ideal oil level height H1 at low speed and an ideal oil level height H2 at high speed.

However, in the conventional rotating part lubricating device 100, the oil level in the storage chamber 105 depends on the height position of the oil drain hole 107 as described above.
For this reason, it is difficult to optimize the amount of oil both at low speed and at high speed.

The present invention has been devised in view of the above circumstances, and is intended to prevent seizure of rotating parts due to insufficient lubricating oil during low rotation of the rotating part, and to prevent deterioration of driving efficiency of the rotating part due to oil agitation resistance during high rotation. The purpose is to achieve compatibility between

A rotating part lubricating device according to the present invention includes a rotating part that rotates by receiving power from a power source in a vehicle, and stores the supplied lubricating oil to submerge at least a part of the rotating part in the oil. The lubricating apparatus comprises a storage chamber, and an oil drain adjustment section that changes the height of a take-in position for draining the stored lubricating oil in accordance with the number of rotations of the rotating section.

As a result, the oil level in the storage chamber can be adjusted according to the rotation speed of the rotating portion. Specifically, it is possible to adjust the intake position to raise the oil level at low rotation of the rotating part, and lower the intake position to lower the oil level at high rotation. .

In the rotating part lubricating device according to the present invention described above, an oil drain hole for discharging the stored lubricating oil to the outside of the storage chamber is provided, and the oil drain adjustment part is configured to discharge the lubricating oil to be discharged from the oil drain hole. from the stored lubricating oil, and the movable member receives the lubricating oil raked up by the rotating part and moves to the height position of the taking hole can be changed.

This eliminates the need to add a component such as an actuator for driving the movable member in accordance with the number of rotations of the rotating portion when changing the height of the take-in position for draining oil.

In the lubricating device for rotating parts according to the present invention, the movable member is provided so as to be rotatable about a rotating shaft substantially parallel to the rotating shaft of the rotating body in the rotating part, and protrudes in a direction orthogonal to the axis. It is possible to adopt a configuration in which an oil receiving portion is formed.

As a result, the amount and pressure of the oil received by the oil receiving portion can be changed as the manner of scattering of the lubricating oil raked up by the rotating portion changes according to the rotation speed. That is, it is possible to change the height position of the intake hole by changing the rotation angle of the movable member in accordance with the number of rotations of the rotating portion.

In the rotating portion lubricating device according to the present invention described above, the movable member may be configured such that at least the oil receiving portion has buoyancy.

The oil level in the storage chamber is not always horizontal, and may temporarily fluctuate up and down due to factors such as vehicle travel. When the rotating part changes from high rotation to low rotation and the amount and pressure of the oil received by the oil receiving part decreases, if the oil level rises even temporarily due to vehicle running etc., the oil receiving part with buoyancy will As the oil level rises, it floats, and the movable member rotates in the direction opposite to that when changing from low rotation to high rotation. That is, it is possible to automatically raise the position of the intake hole when the rotating portion rotates at a low speed.

In the lubricating device for rotating parts according to the above-described present invention, the oil discharge adjusting part has a first restricting part that restricts the movement of the movable member so as to restrict the upper limit position of the intake hole. is possible.

As a result, the storage amount of lubricating oil corresponding to the low rotation speed does not exceed a predetermined amount.

In the lubricating device for rotating parts according to the above-described present invention, the oil discharge adjusting part has a second restricting part that restricts the movement of the movable member so as to restrict the lower limit position of the intake hole. is possible.

As a result, the storage amount of lubricating oil corresponding to high speed rotation is prevented from exceeding a predetermined amount.

In the rotating portion lubricating device according to the present invention, the movable member may be an elastically deformable member.

Accordingly, as a method for operably locking the movable member to a predetermined position such as a chamber wall of the storage chamber, it is possible to employ a locking method utilizing elastic deformation of the movable member.

According to the present invention, it is possible to prevent seizure of the rotating part components due to insufficient lubricating oil during low rotation of the rotating part and to prevent deterioration of driving efficiency of the rotating part due to oil stirring resistance during high rotation.

1 is a diagram showing a cut model of a rotating part lubricating device as an embodiment according to the present invention; FIG. It is the figure which showed the structural example of the attachment part vicinity of the movable member with which the rotating part lubricating device as embodiment is provided. It is a figure showing a mode that the movable member was attached to the attachment part. 4 is a cross-sectional view of the A-A' cross section shown in FIG. 3; FIG. 4 is a cross-sectional view of the B-B' cross section shown in FIG. 3; FIG. FIG. 10 is an explanatory diagram of an action corresponding to low rotation of the rotating portion; FIG. 10 is an explanatory diagram of an action corresponding to high rotation of the rotating portion; It is a diagram showing a cut model of a rotating part lubricating device as a conventional example. FIG. 5 is a diagram illustrating ideal oil level heights at low rotation and at high rotation;

A rotating part lubricating device 1 as an embodiment according to the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a diagram for explaining a configuration example of the rotating part lubricating device 1, and shows a cut model when the rotating part lubricating device 1 is vertically cut at a predetermined position in the longitudinal direction of the vehicle. Moreover, FIG. 2 is a diagram showing a configuration example of the vicinity of the receiving portion 21 for attaching the movable member 4 in the oil discharge adjusting portion 3. As shown in FIG.

A rotating portion lubricating device 1 of the embodiment is provided for a power transmission device in a vehicle, specifically an oil pump that discharges working oil to a hydraulic circuit of a transmission, and lubricates the rotating portion of the oil pump. conduct.
Here, the oil pump provided with the rotating part lubricating device 1 is, for example, an internal gear type oil pump, and has a drive shaft 101 connected to an internal gear and a drive gear 102 connected to the drive shaft 101. is doing. Power from an input shaft 103 that rotates by receiving power from a power source such as an engine of the vehicle is transmitted to the drive gear 102 via a chain 104 . As a result, the driving gear 102 is rotationally driven and the oil pump performs a pumping operation.
In this example, the rotation axes of the input shaft 103, the drive shaft 101, and the drive gear 102 are substantially parallel to the longitudinal direction of the vehicle. The rotation direction of the input shaft 103 is clockwise when viewed from the front (viewpoint from the front side to the rear side of the vehicle) shown in FIG.

The rotating part lubricating device 1 includes a metal case 2 as an outer casing, an oil supply hole 106 and an oil drain hole 107 (see FIG. 2) formed in the case 2, and an oil drain adjuster provided in the case 2. 3.
The case 2 has an internal space formed as a storage chamber 105 in which a portion of the drive shaft 101, the drive gear 102, a portion of the input shaft 103, and the chain 104 are arranged. The storage chamber 105 stores the lubricating oil supplied from the oil supply hole 106, and submerges at least a portion of the rotating portion 108 composed of the drive shaft 101, the drive gear 102, the input shaft 103, and the chain 104 in the oil. In this example, the storage chamber 105 is configured such that at least the lower end of the drive gear 102 can be submerged in oil.

The case 2 has four chamber walls, ie, a left chamber wall, a right chamber wall, an upper chamber wall, and a lower chamber wall, which cover the rotating part 108 from the left side, the right side, the upper side, and the lower side as chamber walls forming the storage chamber 105 . , a front chamber wall that covers the rotating portion 108 from the front side and supports the input shaft 103, and a rear chamber wall that covers the rotating portion 108 from the rear side and supports the drive shaft 101. ing. Here, among these chamber walls, the rear chamber wall is referred to as "wall portion 20".

Oil supply hole 106 is a hole that penetrates wall portion 20 in the front-rear direction, and is positioned at the upper left end portion of wall portion 20 . Lubricating oil is supplied to the oil supply hole 106 via a hydraulic circuit (not shown) formed in the transmission.

The oil drain hole 107 (see FIG. 2), like the oil supply hole 106, is a hole that penetrates the wall portion 20 in the front-rear direction and is positioned at the lower right end portion of the wall portion 20. The lubricating oil is discharged outside the case 2 , that is, outside the storage chamber 105 .

The drain oil adjustment unit 3 changes the height of the take-in position for draining the lubricating oil stored in the storage chamber 105 according to the rotational speed of the rotating part 108 . In this example, the oil discharge adjusting portion 3 is configured by including a movable member 4 , a first restricting portion 23 and a second restricting portion 24 .

The movable member 4 includes a body portion 40 having a substantially disc-shaped outer shape, an intake hole 41 that passes through the body portion 40 in the front-rear direction and takes in lubricating oil stored in the storage chamber 105 for draining, and a body portion. It has a plate-shaped oil receiving portion 42 connected to the main body portion 40 and protruding in the outer peripheral direction from the main body portion 40, and a restricting convex portion 43 connected to the main body portion 40 and protruding from the main body portion 40 in the outer peripheral direction.
The intake hole 41 is formed at a position closer to the outer circumference of the body portion 40 .
The thickness direction of the oil receiving portion 42 is perpendicular to the plane parallel to the radial direction of the main body portion 40 . As a result, when the rotating portion 18 rakes up the stored lubricating oil as will be described later, the oil-receiving area for the scattered lubricating oil is designed to be large.
In this example, the restricting convex portion 43 projects in a direction opposite to that of the oil receiving portion 42 .

In this example, the movable member 4 is an elastically deformable member made of resin, for example, and is rotatably attached to an attachment portion 21 formed on the wall portion 20 . Here, the rotation axis of the movable member 4 is parallel to the rotation axis of the rotating body such as the driving gear 102 in the rotating portion 108 in this example. At this time, the rotation axis of the movable member 4 does not need to be strictly parallel to the rotation axis of the rotating body, and may be substantially parallel.
Further, in this example, the movable member 4 is arranged on the right side of the rotating portion 108 , specifically, on the right side of the drive gear 102 . As will be understood from the description below, whether the movable member 4 is positioned on the right side or the left side of the rotating portion 108 depends on the rotating direction of the rotating portion 108 .
In addition, the configuration related to the attachment of the movable member 4 will be described later.

Further, in the movable member 4 of this example, at least the oil receiving portion 42 has buoyancy with respect to the lubricating oil. In this example, the entire movable member 4 is made of the same resin material, and has buoyancy against lubricating oil.

The first restricting portion 23 restricts the movement of the movable member 4 so as to restrict the upper limit position of the intake hole 41 . The second restricting portion 24 restricts the movement of the movable member 4 so as to restrict the lower limit position of the intake hole 41 .
In this example, the first restricting portion 23 and the second restricting portion 24 are both provided as stoppers for the restricting convex portion 43 of the movable member 4 , and when the restricting convex portion 43 abuts, the movable member 4 moves (rotates). angle).
In this example, the first restricting portion 23 and the second restricting portion 24 are formed as convex portions that project forward from a portion of the wall portion 20 . For this reason, it is not necessary to provide an additional component for regulating the movement of the movable member 4 .

As shown in FIG. 2, the mounting portion 21 has a sliding recess 21a and a locking recess 21b. The sliding recess 21a is a generally ring-shaped recess formed in the wall portion 20, and the locking recess 21b is open on the inner circumference of the sliding recess 21a and recessed further rearward than the sliding recess 21a. It is formed in the wall portion 20 as an annular recess.

In addition, in this example, a substantially half-moon shaped communication groove 22 is formed in a part of the mounting portion 21 . The communication groove 22 is formed in the wall portion 20 as a groove recessed rearwardly of the sliding recess 21b, and is located inside the outermost periphery of the sliding recess 21a and further than the outermost periphery of the locking recess 21b. located on the outer periphery.
An oil drain hole 107 is formed at the lower end of the communication groove 22 . The communication groove 22 functions as a groove portion for guiding the lubricating oil taken in from the intake hole 41 in the movable member 4 to the oil drain hole 107 .

FIG. 3 shows how the movable member 4 is mounted to the mounting portion 21, and the positional relationship of the communication groove 22, oil drain hole 107, etc. with respect to the movable member 4 is shown by broken lines in the drawing.
4 shows a cross-sectional view of the AA' cross section shown in FIG. 3, and FIG. 5 shows a cross-sectional view of the BB' cross section shown in FIG.

The body portion 40 of the movable member 4 has a sliding convex portion 40a that projects rearward from the oil receiving portion 42 and the restricting convex portion 43, and an engaging portion that further projects rearward from the central portion of the sliding convex portion 40a. A stop projection 40b is formed.

The locking projection 40b has a rear end portion larger in diameter than a root portion closer to the front, that is, closer to the sliding projection 40a. The locking recess 21b in the mounting portion 21 has a smaller opening diameter on the entrance side (front side) and a larger opening diameter on the back side (rear side).
In addition, in the body portion 40 of the movable member 4, the inner peripheral portion of the engaging projection 40b is recessed forward to form a cavity S. As shown in FIG.

The movable member 4 is attached to the mounting portion 21 by utilizing the elastic deformation of the movable member 4 made of resin (especially the elastic deformation of the locking projections 40b) to fit the locking projections 40b into the locking recesses 21b. It is done by locking against. At this time, since the cavity S is formed, the locking projection 40b can be inclined toward the inner peripheral side, and the easiness of locking (easiness of attachment) is enhanced.
In the state where the locking protrusion 40b is locked by the locking recess 21b and the movable member 4 is attached to the mounting portion 21 as described above, the movable member 4 rotates about the central axis of the locking recess 21b as the rotation axis. be free. In this case, the rotation axis of the movable member 4 is substantially parallel to the rotation axis of the rotating body in the rotating portion 108 . Further, in this case, it can be said that the oil receiving portion 42 protrudes in the direction perpendicular to the axis of the movable member 4 .

The rotation angle of the movable member 4 is restricted within a predetermined rotation angle range by the first restriction portion 23 and the second restriction portion 24 shown in FIGS. Thus, the intake hole 41 formed in the movable member 4 and the communication groove 22 maintain a communicating state. In other words, the lubricating oil taken in from the intake hole 41 is maintained in a state in which it can be discharged from the oil drain hole 107 through the communication groove 22 .

Here, when the rotating part 108 rotates in a state in which the lubricating oil is supplied from the oil supply hole 106 and a certain amount of the lubricating oil is stored in the storage chamber 105, part of the lubricating oil stored by the rotating part 108 is be raked up.
In FIG. 6, the manner in which the lubricating oil raked up by the rotating portion 108 is schematically represented by a dashed line arrow DL and a solid line arrow DH.
Immediately after the oil pump starts rotating and when the rotating portion 108 is rotating at a low speed, the force of raking up the lubricating oil by the rotating portion 108 is weak, and the lubricating oil is scattered as indicated by the dashed arrow DL in the figure. does not reach the oil receiving portion 42 of the movable member 4 . That is, the amount of oil received by the oil receiving portion 42 is small, and the received oil pressure is also low.
In this state, the movable member 4 is in a state in which the restricting convex portion 43 is positioned near the first restricting portion 23, and the intake hole 41 is positioned near the upper limit position. That is, at low engine speeds, the height of the take-in position for draining the stored lubricating oil is increased, and the level of the stored lubricating oil is increased as indicated by H1 in the figure.

On the other hand, when the rotating portion 108 rotates at a high speed, the force of raking up the lubricating oil by the rotating portion 108 is strengthened. The amount of received oil and the received oil pressure at the oil receiving portion 42, such as reaching the oil receiving portion 42, are greater and higher than at the time of low rotation.
In this state, for example, as shown in FIG. 7, the movable member 4 is rotated in the same direction as the rotational direction of the rotating portion 108, and accordingly the position of the intake hole 41 is lowered. At this time, when the number of rotations of the rotating portion 108 increases above a certain number, the amount of oil received and the oil pressure received at the oil receiving portion 42 increase above a certain amount, and the pressure rises above a certain amount, the rotation of the movable member 4 is stopped. The angle is regulated by the regulating convex portion 43 and the second regulating portion 24, and the position of the intake hole 41 is maintained at the lower limit position. That is, in this example, the height position of the intake hole 41 and the height position of the oil drain hole 107 are maintained in the same state.
As described above, at high rotation, the height of the take-in position for draining the stored lubricating oil is lowered, and the oil surface height of the stored lubricating oil is higher than that at low rotation, as indicated by H2 in the figure. is also lowered.

Here, when the rotational speed of the rotating portion 108 decreases from the state of high rotation as shown in FIG. It is possible to rotate in the opposite direction when changing to.
The oil level in the storage chamber 105 is not always horizontal, and may temporarily fluctuate up and down due to factors such as vehicle travel. In a state in which the rotation portion 108 changes from high rotation to low rotation and the amount and pressure of the oil received by the oil receiving portion 42 is reduced, if the oil level rises even temporarily due to vehicle running or the like, the oil receiving oil having buoyancy The portion 42 floats as the oil level rises, and along with this, the movable member 4 rotates in a direction opposite to that when changing from low rotation to high rotation. That is, it is possible to automatically raise the position of the intake hole 41 when the rotating portion 108 rotates at a low speed.
At this time, provision of the first restricting portion 23 prevents the position of the intake hole 41 from exceeding the upper limit position. In addition, since the first restricting portion 23 is provided, the oil receiving portion 42 is tilted toward the rotating portion 108, that is, the oil receiving portion 42 cannot receive the lubricating oil scraped up by the rotating portion 108. It is possible to prevent falling into a dysfunctional state that results in

As described above, in the rotating part lubricating device (1) of the embodiment, the rotating part (108) that rotates by receiving power from the power source in the vehicle is arranged, and the supplied lubricating oil is A storage chamber (same 105) for storing and submerging at least a part of the rotating part, and changing the height of the intake position for draining the stored lubricating oil according to the rotation speed of the rotating part. It is equipped with a drain oil adjustment unit (same as 3).

As a result, the oil level in the storage chamber can be adjusted according to the rotation speed of the rotating portion. Specifically, it is possible to adjust the intake position to raise the oil level at low rotation of the rotating part, and lower the intake position to lower the oil level at high rotation. .
Therefore, it is possible to prevent seizure of the rotating part components due to insufficient lubricating oil at low rotation and prevent deterioration of driving efficiency of the rotating part due to oil stirring resistance at high rotation.

Further, in the rotating part lubricating device of the embodiment, an oil drain hole (same 107) for discharging the stored lubricating oil to the outside of the storage chamber is provided, and the oil drain adjustment part drains the lubricating oil to be discharged from the oil drain hole. It has a movable member (4) formed with an intake hole (41) for taking in the stored lubricating oil. It is configured so that the height position changes.

This eliminates the need to add a component such as an actuator for driving the movable member in accordance with the number of rotations of the rotating portion when changing the height of the take-in position for draining oil.
Therefore, it is possible to reduce the number of parts and the cost.

Further, in the rotating part lubricating device of the embodiment, the movable member is provided so as to be rotatable about a rotating shaft substantially parallel to the rotating shaft of the rotating body in the rotating part, and has an oil receiver protruding in the direction orthogonal to the axis. A part (42) is formed.

As a result, the amount and pressure of the oil received by the oil receiving portion can be changed as the manner of scattering of the lubricating oil raked up by the rotating portion changes according to the rotation speed. That is, it is possible to change the height position of the intake hole by changing the rotation angle of the movable member in accordance with the number of rotations of the rotating portion.
Therefore, it is possible to prevent seizure of the rotating part components due to insufficient lubricating oil at low rotation and prevent deterioration of driving efficiency of the rotating part due to oil stirring resistance at high rotation.

Further, in the rotating part lubricating device of the embodiment, at least the oil receiving part of the movable member has buoyancy.

The oil level in the storage chamber is not always horizontal, and may temporarily fluctuate up and down due to factors such as vehicle travel. When the rotating part changes from high rotation to low rotation and the amount and pressure of the oil received by the oil receiving part decreases, if the oil level rises even temporarily due to vehicle running etc., the oil receiving part with buoyancy will As the oil level rises, it floats, and the movable member rotates in the direction opposite to that when changing from low rotation to high rotation. That is, it is possible to automatically raise the position of the intake hole when the rotating portion rotates at a low speed.
Therefore, there is no need to add a part such as an actuator for driving the movable member in order to raise the height of the intake hole corresponding to the low rotation speed, and it is possible to reduce the number of parts and the cost. can.

Furthermore, in the rotating part lubricating device of the embodiment, the drain oil adjusting part has a first restricting part (23) that restricts the movement of the movable member so as to restrict the upper limit position of the intake hole. .

As a result, the storage amount of lubricating oil corresponding to the low rotation speed does not exceed a predetermined amount.
Therefore, it is possible to optimize the amount of stored oil during low rotation.
In addition, in the configuration in which the movable member rotates as illustrated in the embodiment, the first restricting portion can prevent the oil receiving portion from tilting toward the rotating portion. That is, it is possible to prevent the oil receiving portion from falling into a malfunctioning state in which it becomes impossible to receive the lubricating oil raked up by the rotating portion.

In addition, in the rotating part lubricating device of the embodiment, the oil discharge adjusting part has a second restricting part (24) that restricts the movement of the movable member so as to restrict the lower limit position of the intake hole.

As a result, the storage amount of lubricating oil corresponding to high speed rotation is prevented from exceeding a predetermined amount.
Therefore, it is possible to optimize the amount of stored oil during high speed rotation.

Furthermore, in the rotating portion lubricating device of the embodiment, the movable member is a member that can be elastically deformed.

Accordingly, as a method for operably locking the movable member to a predetermined position such as a chamber wall of the storage chamber, it is possible to employ a locking method utilizing elastic deformation of the movable member.
Therefore, it is possible to eliminate the need to use a separate locking member such as a screw for locking the movable member, and it is possible to reduce the number of parts and the cost.

It should be noted that the present invention is not limited to the specific examples described above, and various modifications are conceivable.
For example, in the above example, the height of the take-in position for draining oil is changed by rotating the movable member having the take-in hole. Other movements may be used to change the height of the take-up position for draining oil.

In the above, an example in which the present invention is applied to the lubrication of a rotating part related to an oil pump of a transmission has been given. The present invention can also be applied to the lubrication of rotating parts.
INDUSTRIAL APPLICABILITY The present invention can be widely and suitably applied to the lubrication of rotating parts that rotate by receiving power from a power source in a vehicle.

REFERENCE SIGNS LIST 1 rotating part lubricating device 2 case 20 wall part 21 mounting part 21a sliding recess 21b locking recess 22 communication groove 23 first restricting part 24 second restricting part 3 drain oil adjustment part 4 movable member 40 main body 40a sliding projection 40b locking projection 41 intake hole 42 oil receiving portion 43 regulation projection 101 drive shaft 102 drive gear 103 input shaft 104 chain 105 Reservoir Chamber 106 Oil Supply Hole 107 Oil Drain Hole 108 Rotating Part S Cavity

Claims (6)

a storage chamber in which a rotating portion that rotates by receiving power from a power source of the vehicle is arranged, and in which supplied lubricating oil is stored to submerge at least part of the rotating portion;
an oil discharge adjustment unit that changes the height of a take-in position for discharging the stored lubricating oil according to the rotation speed of the rotating part ,
An oil drain hole for discharging the stored lubricating oil to the outside of the storage chamber,
The oil discharge adjustment unit
It has a movable member formed with an intake hole for taking in the lubricating oil to be discharged from the oil drain hole from the stored lubricating oil, and the movable member receives the lubricating oil raked up by the rotating part and moves. Thereby, the height position of the intake hole changes.
Rotating part lubricator. The movable member is
The rotating part lubrication according to claim 1 , wherein the rotating part is provided so as to be rotatable by a rotating shaft that is substantially parallel to the rotating shaft of the rotating body, and an oil receiving part that protrudes in a direction perpendicular to the axis is formed. Device. The rotating portion lubricating device according to claim 2 , wherein at least the oil receiving portion of the movable member has buoyancy. The oil discharge adjustment unit
4. The rotating portion lubricating device according to claim 1 , further comprising a first restricting portion that restricts the movement of the movable member so as to restrict the upper limit position of the intake hole. The oil discharge adjustment unit
The rotating part lubricating device according to any one of claims 1 to 4 , further comprising a second restricting portion that restricts the movement of the movable member so as to restrict the lower limit position of the intake hole. The rotating portion lubricating device according to any one of claims 1 to 5 , wherein the movable member is an elastically deformable member.

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