JP2010286030A - Oil receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil receiver which efficiently collects lubricating oil and stably supplying the lubricating oil to a lubricating portion regardless of a simple constitution. <P>SOLUTION: An oil receiver includes an upper oil collecting chamber 1a for collecting lubricating oil above an oil receiver 1, a lower oil collecting chamber 1b for collecting lubricating oil below or at a side of the oil receiver 1, an outlet pipe 1c freely communicating with the upper and lower oil collecting chambers 1a, 1b and communicating with a shaft oil path 4, and an opening/closing plate 5 arranged between the upper and lower oil collecting chambers 1a, 1b and the outlet pipe 1c (an aggregation part or a connection part) and driven by receiving the pressure difference between lubricating oils from the upper and lower oil collecting chambers 1a, 1b. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an oil receiver, and more particularly to an oil receiver for a transmission mounted on a vehicle, and more particularly to an oil receiver for a manual transmission.

  Patent Document 1 discloses an oil receiver for a manual transmission mounted on a vehicle.

  FIG. 3 is a cross-sectional view showing an oil receiver according to a conventional example. Referring to FIG. 3, in the vehicle transmission, the outlet pipe 10 c of the oil receiver 10 is inserted into an in-shaft oil passage 4 formed in the shaft 3. The oil receiver 10 has an oil collection chamber 10a that is open at the top.

  The oil flow 6a enters the oil collection chamber 10a from the upper surface 10d of the oil collection chamber 10a. The oil flow 6b below the oil collection chamber 10a collides with the bottom wall of the oil receiver 10 or the oil collection chamber 10a and cannot enter the oil collection chamber 10a. The oil flow 6 a that has entered the oil collection chamber 10 a becomes a receiver outlet flow 7 that flows in the outlet pipe 10 c, and further becomes an in-shaft flow 8 that flows in the in-shaft oil passage 4. Lubricating oil is supplied from the in-shaft flow 8 to the bearing 2 that rotatably supports the shaft 3 and a gear (not shown) disposed on the shaft 3.

Japanese Unexamined Patent Publication No. 2007-170491 (Documents showing general technical level)

  Referring to FIG. 3, in the oil receiver 10 according to the conventional example, the lubricating oil supplied to the in-shaft oil passage 4 is only the lubricating oil stored in the oil collecting chamber 10 a located at the top of the oil receiver 10. Therefore, for example, when the vehicle travels at a high speed (when the shaft 3 rotates at a high speed), if the amount of lubricating oil stored in the oil collecting chamber 10a decreases, the amount of lubricating oil supplied to the in-shaft oil passage 4 decreases. As a result, there may be a problem that the lubricity of gears (not shown) disposed on the bearing 2 and the shaft 3 is lowered. Further, when the amount of lubricating oil stored in the oil collection chamber 10a is reduced, when the in-shaft flow 8 receives a force toward the left in FIG. 3 when the vehicle is accelerated, the oil is disposed on the bearing 2 or the shaft 3. There is a risk that the lubricity of a gear (not shown) may further decrease.

  An object of the present invention is to provide an oil receiver that can efficiently collect lubricating oil and can stably supply the lubricating oil to a lubricated portion regardless of a simple configuration.

  According to a first aspect of the present invention, there is provided an oil receiver for supplying lubricating oil to a lubricating portion of a transmission mounted on a vehicle through an in-shaft oil passage formed in a shaft of the transmission. The upper oil collecting chamber for collecting the upper lubricating oil, the lower oil collecting chamber for collecting the lubricating oil below or on the side of the oil receiver, and the upper and lower oil collecting chambers can communicate with each other and in the shaft. A pressure difference between an outlet pipe communicating with an oil passage, the upper and lower oil collecting chambers, and the outlet pipe, and the lubricating oil from the upper oil collecting chamber and the lubricating oil from the lower oil collecting chamber; And an open / close plate driven in response to the oil receiver.

(1) Lubricating oil above the oil receiver is collected by an upper oil collecting chamber disposed above the oil receiver, and lubricating oil below or on the side of the oil receiver is collected by a lower oil collecting chamber disposed below the oil receiver. Be collected. Therefore, even when there is little lubricating oil above the oil receiver, the oil receiver can efficiently collect the lubricating oil through the lower oil collecting chamber.
(2) The amount of lubricating oil collected through the lower oil collection chamber increases, and the pressure at which the oil flow from the lower oil collection chamber acts on the opening / closing plate, the oil flow from the upper oil collection chamber acts on the opening / closing plate. When the pressure becomes higher, the opening / closing plate is opened, and the lower oil collection chamber and the in-shaft oil passage are communicated. Therefore, for example, when the vehicle travels at a high speed, even if the amount of lubricating oil collected in the upper oil collecting chamber decreases, sufficient lubricating oil is supplied from the lower oil collecting chamber to the shaft oil passage.
(3) Further, when the vehicle is accelerating, the lower oil collection chamber even when the lubricating oil flow in the oil receiver receives a force acting in a direction opposite to the direction from the oil receiver toward the in-shaft oil passage. Thus, since sufficient lubricating oil is supplied to the oil receiver, insufficient supply of lubricating oil to the lubricating portion is prevented.
(4) Thus, according to the oil receiver of the present invention, it is possible to stably supply the lubricating oil to the lubricating part under various vehicle traveling conditions.

It is a top view which shows the oil receiver which concerns on one Example of this invention. It is an operation | movement figure which shows the AA cross section of FIG. It is sectional drawing which shows the oil receiver which concerns on a prior art example.

  In an embodiment of the present invention, the opening / closing plate closes the lower oil collecting chamber and the outlet pipe to communicate the upper oil collecting chamber and the outlet pipe when the vehicle travels at a low speed. When the vehicle is traveling at high speed or during acceleration, it opens upward, and the lower oil collecting chamber and the outlet pipe are communicated with each other to close the space between the upper oil collecting chamber and the outlet pipe. According to this aspect, insufficient lubrication of the transmission at the time of high speed or acceleration of the vehicle is prevented.

  In an embodiment of the present invention, the upper oil collection chamber has an upper surface opened, and the lower oil collection chamber has a side surface opened. According to this aspect, the lubricating oil is efficiently collected under various vehicle traveling conditions, and the collected lubricating oil is stably supplied to the lubrication location.

  In an embodiment of the present invention, the lower oil collection chamber is gradually reduced from the upstream side where the lubricating oil is introduced toward the downstream side connected to the outlet pipe. Further preferably, the lower oil collecting chamber is formed in a quadrangular pyramid shape. According to this aspect, the pressure acting on the opening / closing plate is efficiently generated from the lubricating oil collected in the lower oil collecting chamber.

  The oil receiver according to the present invention is a transmission in which the amount of lubricating oil above the oil receiver decreases when the vehicle runs at high speed, or a transmission in which the amount of lubricating oil on the side or below the oil receiver increases when the vehicle runs at high speed. It is preferably applied.

  The transmission having the oil receiver according to the present invention can sufficiently lubricate the transmission without using a load device such as an oil pump for forced lubrication, and a mechanism relating to lubrication can be configured at low cost.

  An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a top view showing an oil receiver according to an embodiment of the present invention. FIG. 2 is an operation diagram showing an AA cross section of FIG.

  Referring to FIG. 1, an oil receiver 1 is formed in a shaft 3 at a lubrication location of a transmission mounted on a vehicle, for example, a lubrication location such as a bearing 2 that rotatably supports the shaft 3 or a gear (not shown). The lubricating oil is supplied through the in-shaft oil passage 4.

  The oil receiver 1 includes an upper oil collecting chamber 1a for collecting lubricating oil above the oil receiver 1, a lower oil collecting chamber 1b for collecting lubricating oil below or on the side of the oil receiver 1, and upper and lower oil collecting chambers. An outlet pipe 1c that can communicate with 1a, 1b and communicates with the in-shaft oil passage 4, and is disposed between the upper and lower oil collecting chambers 1a, 1b and the outlet pipe 1c (collection part or connection part), And an opening / closing plate 5 driven by receiving a pressure difference between the lubricating oil from the oil collecting chamber 1a and the lubricating oil from the lower oil collecting chamber 1b.

  The upper oil collecting chamber 1a has an upper surface 1d that can take in the oil flow 6a above the oil receiver 1. The lower oil collecting chamber 1b has an open side surface 1e and can take in an oil flow 6b below or on the side of the oil receiver 1. The lower oil collecting chamber 1b or the flow cross-sectional area thereof is gradually reduced from the upstream side where the lubricating oil is introduced toward the downstream side connected to the outlet pipe 1c. That is, the lower oil collecting chamber 1b is formed in a conical shape.

  The opening / closing plate 5 is a valve that rotates or deforms in response to the pressure difference between the lubricating oil applied to one surface and the other surface of the opening / closing plate 5. The opening / closing plate 5 can be formed from a metal, resin, or other elastic material that is resistant to lubricating oil. The opening / closing plate 5 can be composed of a pivot that is rotatably attached to the oil receiver 1 and a plate that rotates integrally with the pivot.

  The function of the oil receiver 1 described above will be described. When the upper oil flow 6a is relatively large and the amount of lubricating oil accumulated in the upper oil collection chamber 1a is large, for example, when the vehicle is traveling at a low speed (when the shaft 3 rotates at a low speed), it is applied to the upper surface of the opening / closing plate 5. The pressure from the oil flow 6a becomes dominant, and the opening / closing plate 5 closes the space between the lower oil collection chamber 1b and the outlet pipe 1c as shown by the dotted line in FIG. 2, and connects the upper oil collection chamber 1a and the outlet pipe 1c. Communicate. As a result, the oil flow 6 a that has entered the upper oil collection chamber 1 a becomes a receiver outlet flow 7 a that flows in the outlet pipe 1 c, and further an in-axis flow 8 that flows in the in-axis oil passage 4. Lubricating oil is supplied from the in-shaft flow 8 to the bearing 2 that rotatably supports the shaft 3 and a gear (not shown) disposed on the shaft 3.

  For example, when the vehicle is traveling at a high speed (when the shaft 3 is rotating at high speed), for example, on the lower surface of the opening / closing plate 5 when the lower or side oil flow 6b is relatively large and the amount of lubricating oil accumulated in the upper oil collecting chamber 1a is small. The pressure from the applied oil flow 6b becomes dominant, and the open / close plate 5 closes between the upper oil collecting chamber 1a and the outlet pipe 1c as shown by the solid line in FIG. The pipe 1c is connected. As a result, the oil flow 6b that has entered the lower oil collection chamber 1b becomes a receiver outlet flow 7b that flows in the outlet pipe 1c, and further becomes an in-shaft flow 8 that flows in the in-shaft oil passage 4. Lubricating oil is supplied from the in-shaft flow 8 to the bearing 2 that rotatably supports the shaft 3 and a gear (not shown) disposed on the shaft 3.

  As described above, during high-speed traveling and acceleration traveling, the amount of lubricating oil supplied from the oil flow 6b entering the lower oil collecting chamber 1b to the in-shaft oil passage 4 enters the upper oil collecting chamber 1a. Since the amount of lubricating oil supplied from the oil flow 6a to the in-shaft oil passage 4 exceeds the amount of lubricating oil (the amount of lubricating oil by natural supply), the amount of lubricating oil in the in-shaft flow 8 is sufficiently secured. Thus, the oil receiver 1 constantly supplies the lubricating oil to the lubrication location of the transmission.

  The oil receiver according to the present invention is used as an oil receiver for a transmission mounted on a vehicle, and more particularly as an oil receiver for a manual transmission.

1 Oil receiver 1a Upper oil collection chamber 1b Lower oil collection chamber 1c Outlet pipe (cylindrical pipe)
1d Upper surface 1e Side surface 2 Bearing 3 Transmission shaft 4 In-shaft oil passage 5 Opening / closing plate 6a Oil flow from above 6b Oil flow from below or from the side 7a Receiver outlet flow from the upper oil collection chamber 7b From the lower oil collection chamber Receiver outlet flow 8 Flow in shaft

Claims (4)

An oil receiver that supplies lubricating oil to a lubricating portion of a transmission mounted on a vehicle through an in-shaft oil passage formed in a shaft of the transmission,
An upper oil collecting chamber for collecting lubricating oil above the oil receiver;
A lower oil collecting chamber for collecting lubricating oil below or on the side of the oil receiver;
An outlet pipe that is freely communicated with the upper and lower oil collecting chambers and communicated with the oil passage in the shaft;
An opening / closing plate disposed between the upper and lower oil collecting chambers and the outlet pipe and driven by a pressure difference between the lubricating oil from the upper oil collecting chamber and the lubricating oil from the lower oil collecting chamber; ,
An oil receiver characterized by comprising: The opening / closing plate is
When the vehicle is traveling at a low speed, the lower oil collecting chamber and the outlet pipe are closed to communicate the upper oil collecting chamber and the outlet pipe,
When the vehicle is traveling at high speed or accelerating, it opens upward, and communicates between the lower oil collection chamber and the outlet pipe to close the space between the upper oil collection chamber and the outlet pipe.
The oil receiver according to claim 1. The upper oil collecting chamber has an upper surface opened,
The lower oil collecting chamber has a side surface opened,
The oil receiver according to claim 1 or 2, wherein The lower oil collection chamber is gradually reduced from the upstream side where the lubricating oil is introduced toward the downstream side connected to the outlet pipe.
The oil receiver as described in any one of Claims 1-3 characterized by the above-mentioned.

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