JPS6240587B2 - - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention (1) Industrial Application Field The present invention relates to a refueling device for an automobile transmission;
In particular, a gear shaft whose shaft end is supported by a transmission case has a vertical oil hole opened at the shaft end and a predetermined hole extending radially from the vertical oil hole in order to lubricate the movable members on the gear shaft. A horizontal oil hole reaching a lubricating part is drilled, and oil is supplied to the vertical oil hole.

(2) Conventional technology Conventionally, as such a lubricating device, a rain gutter-like oil gutter that collects scattered lubricating oil from various gears is disposed inside the transmission case, and this oil gutter is disposed inside the oil gutter. An oil gutter in which the downstream end is communicated with the vertical oil hole is often used.

(3) Problems to be Solved by the Invention The above-mentioned oil gutter can collect a large amount of scattered lubricating oil, so it can be used on long gear shafts that carry a large number of gears, such as the input and output of a multi-stage main transmission mechanism. Although it is extremely effective for supplying oil to shafts, it is often difficult to arrange the oil gutter within a narrow transmission case while avoiding interference with various gears. Therefore, when lubricating a relatively short gear shaft such as an intermediate shaft or subshaft of a sub-transmission mechanism with a small number of gears, it is desirable to have a lubrication device with a simple and compact structure to minimize the amount of lubrication collected by the shaft. It can be done.

An object of the present invention is to provide the oil supply device that can satisfy such requirements.

B. Structure of the Invention (1) Means for Solving Problems In order to achieve the above object, the present invention provides a recessed oil receiving portion with an open side surface above the gear shaft in the side wall of the transmission case. and drilling a communication hole that communicates the oil receiving portion with the vertical oil hole,
An oil collector plate is polymerized and bonded to the side wall facing the oil receiving portion, and the oil collector plate includes:
The present invention is characterized in that a funnel part is formed which is connected to the oil receiving part and has an open top surface.

(2) Effect The lubricating oil scattered by the rotation of various gears in the transmission case adheres to the inside surface of the transmission case, flows down, is collected in the funnel part of the oil collector plate, and is immediately guided to the oil receiver. The oil is supplied to the vertical oil hole of the gear shaft through the communication hole.

(3) Embodiment An embodiment of the present invention will be described below with reference to the drawings. First, in FIG. 1, the engine E is installed horizontally at the front of the vehicle body, that is, its crankshaft 1 is perpendicular to the direction of travel of the vehicle. It is arranged like this. A transmission device consisting of a clutch 2, a transmission 3, a front wheel drive differential 4 and a transfer 5 is disposed on one side of the engine E. The driving force of engine E is provided by clutch 2 and transmission 3.
The transmission is transmitted to the front wheel drive differential 4 via the drive shafts 6, 7, constant velocity joints 8, 9, transmission shafts 10, 11, and constant velocity joints 12, 13 to the left and right front wheels 14, 15. is transmitted to. Also,
The driving force of the engine E is selectively transmitted to the drive shaft 16 via the transmission 3 and transfer 5. The driving force of the drive shaft 16 is transmitted to the rear wheel drive differential 20 via the universal joint 17, propeller shaft 18, and universal joint 19, and from the differential 20 to the drive shafts 21, 22, etc. It is transmitted to left and right rear wheels 29, 30 via velocity joints 23, 24, transmission shafts 25, 26, and constant velocity joints 27, 28.

In FIG. 2 showing details of the transmission device, a clutch case 32 is integrally secured to one side of a crankcase 31 of an engine E, and a transmission case 33 is further integrally secured to this clutch case 32.

A conventionally known clutch 2 is housed in the clutch case 32, and a transmission 3 is housed in the transmission case 33. The transmission 3 is a main transmission mechanism 36
and a sub-transmission mechanism 37, and a main transmission mechanism 36.
The first speed gear train G1, the first speed gear train G1, and the A second speed gear train G2, a third speed gear train G3, a fourth speed gear train G4, a fifth speed gear train G5, and a reverse gear train Gr are provided. These gear trains G
1, G2, G3, G4, G5, Gr from the input shaft 38 to the output shaft 39 via the selected gear train.
The driving force transmitted to is outputted from an output gear 40 provided on the output shaft 39 at the end closer to the engine E.

The input shaft 38 is connected to a bearing hole 4 provided in the clutch case 32 and the transmission case 33, respectively.
1 and 42 through ball bearings 43 and 44, and the output shaft 39
Also, a roller bearing 47 and a ball bearing 48 are installed in bearing holes 45 and 46 provided in the clutch case 32 and the transmission case 33, respectively.
Both ends are rotatably supported via.

The sub-transmission mechanism 37 is used for extremely low speeds below the first speed during all-wheel drive, and includes an intermediate shaft 50 and a sub-shaft 51 that are parallel to the input shaft 38 and output shaft 39. It is arranged in the part near clutch 2 inside. The intermediate shaft 50 is connected to the clutch case 32 and the transmission case 33.
The intermediate shaft 50 has two ends fixedly supported in bearing holes 52 and 53, respectively.
The input shaft 38 constitutes the first gear train G1.
A sub-input gear 55, which is always in mesh with the gear 54, is rotatably supported. Also, the subshaft 51
is rotatably supported at both ends via roller bearings 58, 59 in bearing holes 56, 57 provided in the clutch case 32 and transmission case 33, respectively. A sub-output gear 61 is integrated with the reduction gear 60 connected to the gear 39 at all times. Further, the gear 62 integrated with the sub-input gear 55 and the gear 63 supported in a relatively rotatable manner on the sub-shaft 51 are always meshed to form a reduction gear example 64. The auxiliary input gear 55, the reduction gear train 64, and the auxiliary output gear 61 constitute a very low speed gear train Gsl. When this extremely low speed gear train Gsl is established, the driving force of the input shaft 38 is transferred from the driving gear of the first speed gear train G1 to the gear 5.
5, reduction gear train 64, subshaft 51, gears 61, 60
and is output from the output gear 40 via the output shaft 39.

Lubricating oil L is stored in the transmission case 33 at a specified level. The positional relationship between the oil level of this lubricating oil L and each shaft is as shown in FIG.

In order to lubricate the driving gears of the gear trains G3, G4, G5, their bearings, and other movable members on the input shaft 38, the input shaft 38 has a vertical oil hole 65 passing through its center, and a vertical oil hole 65 passing through the center thereof. A plurality of horizontal oil holes 66, 6 extend radially from the hole 65 and reach a predetermined lubricating part.
6... are bored, and the vertical oil hole 65 is connected to the bearing hole 4.
One end is open at the end face of the input shaft 38 facing the input shaft 38, and the other end is closed at the middle part of the input shaft 38. Further, in order to lubricate the ball bearings 44, 48 of the input and output shafts 38, 39, oil reservoirs 67, 68 are provided in the transmission case 33, which are connected to the bearing holes 42, 46, respectively.

The vertical oil hole 65 and the oil reservoirs 67, 68 are supplied with oil from the first oil supply device S1.

In order to lubricate the driven gears of the gear trains G1 to G4 and Gr, their bearings, and other movable members on the output shaft 39, the output shaft 39 has a vertical oil hole 69 passing through its center and a vertical oil hole 69. A plurality of horizontal oil holes 70, 7 extend radially from the hole 69 and reach a predetermined lubricating part.
0... are bored, and the vertical oil hole 69 is connected to the bearing hole 4.
One end is open at the end surface of the output shaft 39 facing the output shaft 39, and the other end is closed at the intermediate portion of the shaft 39. Also, output shaft 3
In order to lubricate the roller bearing 47 of 9, an oil reservoir 72 connected to the bearing hole 45 is provided in the clutch case 32.

The vertical oil hole 69 and the oil reservoir 72 are supplied with oil from the second oil supply device S2.

In order to lubricate the gears 55, 62 and other movable members on the central shaft 50, the intermediate shaft 62 has a vertical oil hole 73 passing through its center, and a predetermined lubrication hole extending radially from the vertical oil hole 73. Multiple horizontal oil holes 7
4, 74, . Further, in order to lubricate the bearing hole 53, the bearing hole 53 is
An oil reservoir 75 connected to the transmission case 3 is provided in the transmission case 3.

In order to lubricate the gear 63 and other movable members on the subshaft 51, the subshaft 51 has a vertical oil hole 76 passing through its center and a predetermined lubricating section extending radially from the vertical oil hole 76. A horizontal oil hole 77 is drilled to reach the auxiliary shaft 51 facing the bearing 53, and a vertical oil hole 76
One end is opened on the end face, and the other end is closed at the middle part of the shaft 51. Further, in order to lubricate the ball bearing 59 of the subshaft 51, an oil reservoir 78 connected to the bearing hole 57 is provided in the transmission case 33.

The vertical oil holes 73, 76 and oil reservoirs 75, 78
is supplied with oil from the third oil supply device S3.

Next, the first, second and third oil supply devices S1, S
2 and S3 will be explained in order.

The first oil supply device S1 is shown in FIGS. 5 to 7. The oil supply device S1 is connected to the mission case 33.
It has an oil gutter 79 arranged to collect scattered lubricating oil therein.

The oil gutter 79 has a rain gutter shape with one end open and the other end closed, and a pair of hooks 80 and 81 are connected to both side walls near the closed end. A support hole 82 adjacent to the upper part of the bearing hole 42 is bored in the transmission case 33, into which the open end of the oil gutter 79 is inserted. The transmission case 33 also has a pair of pin-shaped support projections 8 extending toward the clutch case 32 at a position higher than the support hole 82 and close to the clutch case 32.
3 and 84 are formed, and these support protrusions 8
3 and 84, the hooks 80 and 81 are engaged.
In this way, the oil gutter 79 has a downward slope from the closed end to the open end, and the transmission case 3
3. Therefore, oil garter 79
The scattered lubricating oil collected is poured into the support hole 82.

In order to prevent the oil garter 79 from coming off from the support hole 82 and the support protrusions 83 and 84, the clutch case 32 is placed opposite the closed end of the oil garter 79.

The support hole 82 is communicated with the oil reservoir 67 via a first communication hole 85 bored in the mission case 33, and this oil reservoir 67 is further connected to a second communication hole 85 bored in the mission case 33. It communicates with the oil reservoir 68 through the hole 86 .

Further, the oil reservoir 67 is also communicated with the vertical oil hole 65 via a funnel body 87. The funnel body 87 consists of a flange 87a and a short pipe 87b protruding from the center of the flange 87a to one side.
7a is abutted against the end face of the bearing hole 42, and the short pipe 87b
is inserted into the vertical oil hole 65 so as to communicate the oil reservoir 67 with the vertical oil hole 65, and is held by a holding member 88 fitted to the input shaft 38.

The lubricating oil poured into the support hole 82 from the oil gutter 79 passes through the first communication hole 85 and reaches the oil reservoir 6.
7, some of the oil immediately lubricates the ball bearing 44, and other oil flows from the oil sump 67 to the funnel 8.
The oil that has passed through the short pipe 87b and the second communication hole 86 is transferred to the vertical oil hole 65, and flows out from the plurality of horizontal oil holes 66, 66... to the outer peripheral surface of the input shaft 38. , to lubricate the movable members on the shaft 38. On the other hand, the oil that has passed through the second communication hole 86 enters the oil reservoir 68 and lubricates the ball bearing 48.

The second oil supply device S2 is shown in FIGS. 3 and 8. The oil supply device S2 includes an oil receiving chamber 90 in the clutch case 32, which receives lubricating oil splashed by a transfer drive gear 89 provided in the differential gear 4 above the output shaft 39.

The oil receiving chamber 90 includes a U-shaped enclosing rib 92 that is formed as a bulge on the outer surface of the clutch case 32 directly above the output shaft 39 and has an inlet 90a opening in the direction 91 of oil scattering from the gear 89. , and a cover plate 94 fixed to the end face of the surrounding rib 92 by a plurality of screws 93 . The screw boss 95 into which the screw 93 is screwed is formed by protruding a part of the surrounding rib 92, and the lower screw boss 95
bulges inward of the oil receiving chamber 90 near the inlet 90a to form a weir 95a, and a certain amount of lubricating oil is retained in the oil receiving chamber 90 by this weir 95a.

The bottom of the oil receiving chamber 90 is connected to the oil reservoir 72 through a communication hole 96 formed in the clutch case 32.
This oil reservoir 72 further communicates with the funnel body 9.
7 to the vertical oil hole 69 of the output shaft 39.

The funnel body 97 consists of a flange 97a and a short pipe 97a protruding from the center of the flange 97a to one side. A holding member 98 inserted into the vertical oil hole 69 so as to communicate with the vertical oil hole 69 and fitted onto the output shaft 39
is maintained.

The lubricating oil that is scattered by the rotation of the transfer drive gear 89 and enters the oil receiving chamber 90 flows into the oil reservoir 72 through the communication hole 96, and some of the oil immediately lubricates the roller bearing 47. Other oil passes through the short pipe 97a of the funnel body 97 to the vertical oil hole 69, and then passes through the plurality of horizontal oil holes 70, 70... to the output shaft 3.
9 and lubricates the movable member on the shaft 39.

A boss 94a that supports a support shaft 99 of a transmission mechanism, for example, a fork shaft that supports a shift fork, is integrally connected to the lid plate 94. In this way, the cover plate 94 has the function of supporting the support shaft 99, which contributes to simplifying the structure of the clutch case 32.

The third oil supply device S3 is shown in FIGS. 4 and 9 to 11. The oil supply device S3 has an oil collector plate that collects scattered lubricating oil that mainly flows down the inner surface of the mission case 33 in the vicinity of the bearing holes 53 and 57.
3. It is superimposed on the inner wall and fixed with screws 101. The oil collector plate 100 has first and second funnel parts 1 formed by stamping on one side thereof and having an open upper surface.
02, 103, these funnel parts 102, 10
3 are arranged above the oil reservoirs 75 and 78, respectively. The first and second oil receiving parts 10 have open sides facing these funnel parts 102 and 103.
4 and 105 are recessed in the side wall of the mission case 33, and oil receivers 104 and 105 are provided on the side wall.
First and second communication holes 106 and 107 are formed to communicate the oil reservoirs 75 and 78, respectively.

As a result, the lubricating oil scattered by the rotation of various gears within the transmission case 33 adheres to the inner surface of the transmission case 33 and flows down to the oil collector plate 1.
When the oil is collected in the first and second funnel parts 102 and 103 of 00, it is immediately collected in the first and second oil receiving parts 10.
4, 105, and the first and second communication holes 0
16 and 107, respectively, to the oil reservoirs 75 and 78, and some of the oil transferred to the oil reservoir 75 immediately lubricates the bearing hole 53 of the intermediate shaft 50, and the other oil lubricates the bearing hole 53 of the intermediate shaft 50.
0 into the vertical oil hole 73, and the plural horizontal oil holes 74,
74... to the outer peripheral surface of the intermediate shaft 50, and the shaft 5
Lubricate the moving parts on the 0. Also, part of the oil transferred from the oil reservoir 78 immediately lubricates the ball bearing 59 of the subshaft 51, and the other oil flows into the vertical oil hole 76 of the subshaft 51, and from the horizontal oil hole 97 The liquid flows out onto the outer peripheral surface of the shaft 51 and lubricates the movable member on the shaft 51.

This third oil supply device S3 is according to the present invention, and therefore the intermediate shaft 50 and the subshaft 51 correspond to the gear shaft of the present invention.

C. Effects of the Invention As described above, according to the present invention, an oil receiving portion with an open side surface above the gear shaft is recessed in the side wall of the transmission case, and the oil receiving portion is connected to the vertical oil hole of the gear shaft. An oil collector plate is polymerized and bonded to the side wall of the case facing the oil receiver, and the oil collector plate has a funnel part connected to the oil receiver and having an open top surface. This allows the lubricating oil flowing down the wall of the transmission case to be effectively supplied to the vertical oil hole of the gear shaft.
Moreover, since the structure is simple and compact, it can be easily installed even in a narrow space between the side wall of the transmission case and the gear.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a schematic diagram of the power system of an automobile, Fig. 2 is a vertical exploded view of the transmission device shown in Fig. 1, and Fig. 3 is a diagram showing the clutch case of Fig. 2. Fig. 4 is an internal view of the transmission case in Fig. 2, Fig. 5 is a partially enlarged view of Fig. 2,
Figure 6 is a sectional view taken along the - line in Figure 4, and Figure 7 is a cross-sectional view of Figure 6.
8 is a sectional view taken along the line - - of Fig. 3, Fig. 9 is a sectional view taken along the - line of Fig. 4, and Figs. 10 and 11 are shown along the - line of Fig. 9 and XI-XI.
FIG. S3... Oil supply device, 3... Transmission, 33... Mission case, 50... Intermediate shaft as gear shaft, 51...
Subshaft as a gear shaft, 73...Vertical oil hole, 74...Horizontal oil hole, 76...Vertical oil hole, 77...Horizontal oil hole, 100...Oil collector plate, 102, 103...Funnel part, 10
4,105...Oil receiving portion, 106,107...Communication hole.

Claims (1)

[Claims] 1. A gear shaft whose shaft end is supported by a transmission case is provided with a vertical oil hole opening at the shaft end and a horizontal oil hole extending radially from the vertical oil hole and reaching a predetermined lubricating part. In the oil supply device for an automobile transmission that supplies oil to the vertical oil hole, an oil receiver with an open side surface above the gear shaft is recessed in the side wall of the transmission case, and the oil receiver is recessed in the side wall of the transmission case. A communication hole communicating with the vertical oil hole is bored in the part,
An oil collector plate is polymerized and bonded to the side wall facing the oil receiving portion, and the oil collector plate includes:
An oil supply device for an automobile transmission, characterized in that a funnel portion is formed that is continuous with the oil receiving portion and has an open top surface.