JPH0683444U - Transmission equipment - Google Patents

Abstract

(57) [Abstract] [Object] The present invention provides a transmission device capable of bolting a retainer to a partition wall of an aluminum clutch housing without obstacles with a sufficient effective screw depth. [Structure] An oil seal retainer 19 fixed to a wall 3 of an aluminum clutch housing 2 with bolts 20 and 28.
The oil pump 23 and the pump case 24 of the oil pump 23 are integrated. As a result, the flange portion 19b of the oil seal retainer 19 and the mounting seat 27 of the oil pump 23 are made into one common component, and the wall portion 3 of the clutch housing 2 is formed.
At the flange portion 19 of the oil seal retainer 19.
b is evenly extended to a point where the effective screw depth C of the retainer mounting bolt 20 is sufficiently taken, and the oil seal retainer 19 is attached to the clutch housing 2 with high mounting strength.
It can be fixed to the wall 3 of the.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a transmission device configured by combining a tubular transmission case with a clutch housing.

[0002]

[Prior art]

 In the case of a manual transmission type vehicle, a power transmission device is used in which an output shaft of the engine is connected to a manual transmission device via a clutch device, and the required gear shifting operation is performed by the intermittent operation of the clutch device. is there.

Such a transmission device has a structure in which a case assembly is formed by using a cylindrical transmission case. This is a transmission device that uses a case assembly that combines a cylindrical mission case with a clutch housing that has a wall that closes the end opening that opens on the input side of the transmission case. is there. Specifically, the structure of the trans mission device is as shown in FIG.

That is, 1 is a cylindrical transmission case, and 2 is a clutch housing. The clutch housing 2 is provided integrally with a wall portion 3 (partitioning wall) having a size corresponding to the outer shape of the end opening opened on the input side of the transmission case 1 and the outer peripheral portion of the wall portion 3. And a housing portion 4 having a substantially bowl-like peripheral wall shape projecting forward from the outer peripheral portion.

The wall portion 3 of the clutch housing 2 is arranged at the input side end portion of the transmission case 1 so as to close the opening of the end portion. The outer peripheral portion of the wall portion 3 is fixed with bolts 5 to partition the inside of the mission case 1. By this fixing, the housing portion 4 is projected to the front of the mission case 1 with respect to the mission case 1.

The transmission case 1 and the clutch housing 2 thus combined constitute a case assembly 6 of the transmission device. Various parts are supported on the wall portion 3 of the case assembly 6 to form an input system 7 of the transmission device.

That is, a main shaft bearing 9 for supporting the main shaft 8 is provided at the center of the wall portion 3, and a wall portion around the main shaft bearing 9 is provided with a predetermined distance from the counter. A counter shaft bearing 12 that supports the shaft 11 is provided.

Here, the main shaft 8 is configured to have a rotatable input shaft portion 8b connected in series with the end portion of the shaft 8a. Specifically, the input shaft portion 8b is rotatably connected in series to the shaft end portion of the shaft 8a via a bearing 13.

The main shaft 8 has a large-diameter base portion of the input shaft 8b, which is one end side, rotatably supported by a main shaft bearing 9 so as to be rotatable in the mission case 1. It is arranged. Then, the small diameter portion 15 (projecting shaft portion) on the tip end side of the input shaft 8 b penetrates the wall portion 3 and projects into the housing portion 4.

The counter shaft 11 is rotatably supported by a counter shaft bearing 12 at an end portion thereof, which has one end side on which a power separating gear 16 is present. They are arranged in parallel.

The gear 16 meshes with a gear 17 provided on the input shaft portion 8b so that rotation from an engine (not shown) input from the input shaft portion 8b is transmitted to the counter shaft 11.

Between the shaft 8 and the counter shaft 11, there is provided a synchronizing device (neither of which is shown) which is always engaged with the gear for gear shifting. Further, a synchronizing device (not shown) is provided between the input shaft portion 8b and the shaft 8a so that a required mesh gear can be selected by operating the synchronizing device by a shift lever (not shown).

The tip side of the small diameter portion 15 protruding into the housing portion 4 is a spline shaft on which a clutch disc (not shown) slides. The base side of the small diameter portion 15 is a flat shaft portion. A component for guiding a sliding component 18 for releasing the clutch disc, for example, an oil seal retainer 19 is provided on the flat shaft portion.

The oil seal retainer 19 is generally composed of a tubular portion 19a into which the small diameter portion 15 is slidably fitted, and an end portion of the tubular portion 19a facing the wall portion 3 side. And a flange portion 19b that extends toward the wall surface portion around the main shaft bearing 12 and that extends toward the wall surface of the main shaft bearing 12.

The oil seal retainer 19 is fixed to the wall surface of the wall portion 3 exposed in the housing portion 4 by an operation from inside the housing portion 4. That is, the oil seal retainer 19 is fixed to the housing portion 4 with the bolt 20 (first bolt) screwed from the flange portion 19b toward the wall surface of the wall portion 3.

The sliding component 18 operated by the release fork 21 is slidably inserted into the outer peripheral portion of the tubular portion 19a, and the release fork 21, the slide member 18 and the slide member 18 are slidable by operating the clutch. The clutch disc is driven through the moving part 18.

Reference numeral 22 is a shift rail provided in the mission case 1. Some transmission devices using such a cylindrical transmission case 1 have an oil pump 23, which is driven by the rotation of the counter shaft 11 as a power, mounted on the wall 3 exposed in the housing 4. .

For this, a structure is used in which the input shaft 23a of the oil pump 23 is directly connected to the shaft end portion of the counter shaft 11 as shown in FIGS. Specifically, the counter shaft 11 is provided with a shaft portion 11 a that projects into the housing portion 3 at the shaft end portion on the clutch housing 2 side.

In the oil pump 23, a pump device 25 is built in a pump case 24 having an outer shape that faces the shaft portion 11 a facing the housing portion 3 and the end surface of the counter shaft bearing 12. An input shaft 23a of the oil pump 23 projects from the center of the back surface of the pump case 24. An engaging portion 26 that can be engaged with and disengaged from the shaft portion 11a of the counter shaft 11 is provided at the protruding end of the input shaft 23a.

On the outer peripheral surface of the pump case 24, a flange-shaped mounting seat 27 extending toward the wall surface of the wall portion 3 around the counter shaft bearing 12 is integrally formed. More specifically, when the mounting seat 27 engages the engaging portion 26 with the shaft portion 11a and arranges the pump case 24 on the wall portion 3, the mounting seat 27 becomes a wall portion of the wall portion 3 around the counter shaft bearing 12. It is supposed to overlap.

The mounting seat 27 is fixed by a bolt 28 (second bolt) which is screwed from the mounting seat 27 toward the wall surface of the wall portion 3, and the oil pump 23 is fixed to the oil seal retainer. It is fixed next to 19.

[0022]

[Problems to be solved by the device]

 In such a transmission device, it is considered that the clutch housing 2 made of gray cast iron (FC), which has been conventionally used, is made of aluminum, that is, the clutch housing 2 is made of aluminum because of its advantages such as light weight. There is.

By the way, the clutch housing 2 made of aluminum has a lower mounting strength of the oil seal retainer 19 fixed by the bolt 20 as compared with the case where the clutch housing 2 made of gray cast iron is used.

In order to compensate for this, it is necessary to secure a sufficient effective screw depth C of the bolt 20 for fixing the oil seal retainer 19 shown in FIG. Here, the main shaft bearing 12 is located on the back side of the flange portion 19b of the oil seal retainer 19, and the counter shaft bearing 12 is located on the back side of the mounting seat 27 of the oil pump 23.

Therefore, it is conceivable that the flange portion 19b of the oil seal retainer 19 is evenly extended to the periphery where the effective thread depth C is sufficiently large. However, since the mutual position of the oil seal retainer 19 and the oil pump 23 is determined by the axial distance between the main shaft 8 and the counter shaft 11, when the flange portion 19 of the oil seal retainer 19 is extended, As shown by the chain double-dashed line in FIG. 4, the flange portion 19 of the oil seal retainer 19 interferes with the mounting seat 27 of the oil pump 23 between the oil seal retainer 19 and the oil pump 23. The flange portion 19 and the mounting seat 27 cannot be extended as expected.

That is, at the position where the retainer mounting bolt 20 and the oil pump mounting bolt 28 are mounted, the flange portion 19 and the mounting seat 27 do not interfere with each other as indicated by ΦX and ΦY in FIG. Limited to range.

For this reason, it has been difficult to sufficiently secure the effective thread depth C of the bolt 20 for attaching the retainer. The present invention has been made in view of such circumstances, and its purpose is to fix the retainer to the aluminum clutch housing with a sufficient effective screw depth by using bolts. It is to provide a transmission device that can perform.

[0028]

In order to achieve the above object, a transmission device according to a first aspect of the present invention is a case of a retainer and an oil pump which are mounted on a wall of a clutch housing made of aluminum by bolts. Both and Su were united.

In the transmission device according to the second aspect, the case of the oil pump, which is mounted on the wall of the aluminum clutch housing with bolts, and the clutch housing are integrated.

[0030]

[Action]

 According to the transmission device of the first aspect, since the flange portion of the retainer and the mounting seat of the oil pump are one component, the flange portion of the retainer is used as the effective screw of the retainer mounting bolt. It is possible to extend to the point of the wall surface part around the main shaft bearing where sufficient depth can be obtained.

As a result, even if the clutch housing made of aluminum is used, the retainer is fixed with the retainer mounting bolts with sufficient mounting strength such that leakage does not occur. According to the transmission device of claim 2, the flange portion of the retainer and the mounting seat of the oil pump do not interfere with each other, and the flange portion of the retainer is connected to the effective screw depth of the retainer mounting bolt. It will be possible to extend to a point where can be fully harvested. As a result, even if an aluminum clutch housing is used, the retainer can be fixed with the retainer mounting bolts with sufficient mounting strength such that leakage does not occur.

[0032]

【Example】

 The present invention will be described below with reference to the first embodiment shown in FIGS. In the drawings, the same parts as those described in the above-mentioned "Prior Art" are designated by the same reference numerals and the description thereof will be omitted. In this section, different parts (main parts of the invention) will be described. I will explain.

In this embodiment, in the above-described transmission device using the aluminum clutch housing 22, the oil seal retainer 19 and the oil pump 23, which are bolted to the wall portion 3 of the clutch housing 22, are provided. It is integrated with the pump case 24.

With such a structure, the flange portion 19b of the oil seal retainer 19 and the mounting seat 27 of the oil pump 23 become one component. Therefore, as shown in FIG. 5, the flange portion 19b of the oil seal retainer 19 and the mounting seat 27 of the oil pump 23 are both effective for the retainer mounting bolt 20 and the oil pump mounting bolt 27. It can be evenly extended to a point where the screw depth C is sufficiently taken, that is, to the wall surface portion of the wall portion 3 that does not interfere with the main shaft bearing 9 and the counter shaft bearing 12.

This means that even if the clutch housing 22 made of aluminum is used, the oil seal retainer 19 is fixed with the bolt 20 for attaching the retainer while ensuring a sufficient effective thread depth C. be able to.

Moreover, as shown in FIG. 5, between the oil seal retainer 19 and the oil pump 23, the oil seal retainer 19 and the pump case 24 are provided with two common bolts. Since it can be fixed so as not to leak, it also reduces the number of parts.

FIG. 3 shows a second embodiment of the present invention. In this embodiment, the aluminum clutch housing 2 and the pump case 24 of the oil pump 23 are integrated.

According to this structure, the mounting seat 27 of the oil pump 23 is one component that is the same as the wall 3 of the clutch housing 2. This means that there are no parts around the wall 3 of the oil seal retainer 19 that would interfere with the oil seal retainer 19 during installation.

That is, the flange portion 19b of the oil seal retainer 19 and the mounting seat 23a of the oil pump 23 do not interfere with each other. Therefore, similarly to the first embodiment, the flange portion 19b of the oil seal retainer 19 is evenly extended to a point where the effective thread depth C of the retainer mounting bolt 20 can be sufficiently secured. be able to.

As a result, even with the structure in which the clutch housing 2 and the pump case 24 of the oil pump 23 are integrated, it is possible to secure sufficient mounting strength in the oil seal retainer without causing fear of leakage. You can

[0041]

[Effect of device]

 As described above, according to the inventions of claims 1 and 2, the retainer can be attached to the wall portion of the aluminum clutch housing that defines the transmission case without any obstacle. It can be fixed while securing a sufficient effective screw depth of the bolt.

[Brief description of drawings]

FIG. 1 is a sectional view showing a structure on a clutch housing side of a transmission device which is a main part of a first embodiment of the present invention.

FIG. 2 is a view seen from the line AA in FIG.

FIG. 3 is a cross-sectional view showing a structure on a clutch housing side of a transmission device which is a main part of a second embodiment of the present invention.

FIG. 4 is a sectional view showing a transmission device using a conventional gray cast iron clutch housing.

5 is a view as seen from the line BB in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Mission case 2 ... Clutch housing 3 ... Wall part (partitioning wall) 4 ... Housing part 6 ... Case assembly 8 ... Main shaft 9 ... Main shaft bearing 11 ... Counter shaft 11a ... Shaft part 12 ... Counter Shaft bearing 15 ... Small diameter part (projecting shaft part) 19 ... Oil seal
Retainer 19a ... Cylindrical part 19b ... Flange part 20 ... Bolt (first bolt) 21 ... Release fork 23 ... Oil pump 24 ... Pump case
25: Pump device 26: Engagement part 27: Mounting seat 28: Bolt (second bolt)

Claims (2)

[Scope of utility model registration request] 1. A cylindrical transmission case, and an aluminum clutch housing connected to an end of the transmission case, the clutch housing comprising:
A case assembly having a partition wall for partitioning the inside of the mission case and closing an end opening of the mission case, and a housing portion projecting forward from an outer peripheral portion of the partition wall. A main shaft bearing and a counter shaft bearing, which are provided in parallel on a partition wall of the clutch housing at a predetermined interval, and one end side of which is rotatably supported by the main shaft bearing. A main shaft disposed in the transmission casing, a counter shaft having one end rotatably supported by the counter shaft bearing and disposed in the transmission case in parallel with the main shaft; A protruding shaft portion that is provided at one end and that penetrates the partition wall and projects into the housing portion; and the partition wall that is exposed in the housing portion It has a cylindrical portion which is provided on a wall surface and into which the protruding shaft portion is inserted, and a flange portion which extends from an end portion of the cylindrical portion toward a wall surface portion around the main shaft bearing. A retainer for sliding the clutch device parts, and the retainer screwed into the partition wall from the flange portion of the retainer toward the wall surface of the partition wall around the bearing for the main shaft. A first bolt for fixing, a shaft portion provided at one end portion of the counter shaft and facing the housing portion from the partition wall, and a shaft portion disposed on a wall surface of the partition wall exposed to the housing portion. A pump device connected to the shaft portion is built in a connected pump case arranged opposite to the shaft end of the counter shaft, and a partition wall around the counter bearing is formed on the outer surface of the pump case. Wall An oil pump that is integrally formed with a flange-shaped mounting seat that extends toward the portion, and that operates using the rotation transmitted from the shaft as power, and a section that is the periphery of the countershaft bearing from the mounting seat of the oil pump. It was screwed toward the wall surface of the wall,
A transmission device, comprising: a second bolt for fixing the oil pump to the partition wall, wherein the retainer and the case of the oil pump are integrated. 2. A cylindrical transmission case and an aluminum clutch housing connected to an end of the transmission case, the clutch housing comprising:
A case assembly having a partition wall for partitioning the inside of the mission case and closing an end opening of the mission case, and a housing portion projecting forward from an outer peripheral portion of the partition wall. A main shaft bearing and a counter shaft bearing, which are provided in parallel on a partition wall of the clutch housing at a predetermined interval, and one end side of which is rotatably supported by the main shaft bearing. A main shaft disposed in the transmission casing, a counter shaft having one end rotatably supported by the counter shaft bearing and disposed in the transmission case in parallel with the main shaft; A protruding shaft portion that is provided at one end and that penetrates the partition wall and projects into the housing portion; and the partition wall that is exposed in the housing portion It has a cylindrical portion which is provided on a wall surface and into which the protruding shaft portion is inserted, and a flange portion which extends from an end portion of the cylindrical portion toward a wall surface portion around the main shaft bearing. A retainer for sliding the clutch device parts, and the retainer screwed into the partition wall from the flange portion of the retainer toward the wall surface of the partition wall around the bearing for the main shaft. A first bolt for fixing, a shaft portion provided at one end portion of the counter shaft and facing the housing portion from the partition wall, and a shaft portion disposed on a wall surface of the partition wall exposed to the housing portion. A pump device connected to the shaft portion is built in a connected pump case arranged opposite to the shaft end of the counter shaft, and a partition wall around the counter bearing is formed on the outer surface of the pump case. Wall An oil pump integrally formed with a flange-shaped mounting seat extending toward the portion, which operates by using the rotation transmitted from the shaft as power, and a section from the mounting seat of the oil pump to the periphery of the counter shaft bearing. It was screwed toward the wall surface of the wall,
A transmission device, comprising: a second bolt for fixing the oil pump to the partition wall, wherein the clutch housing and the case of the oil pump are integrated.