JPS62106178A - Lubricating device for bearing - Google Patents

Abstract

PURPOSE:To reliably lubricate a bearing by fixing a set plate for regulating the axial set position of a bearing to a housing, and providing a lubricating oil supply path in the set plate. CONSTITUTION:A set plate 6 is fixed to the outer surface of a housing 1 by a bolt, thereby to regulate the axial set position of a rolling bearing 3. A passage 14 as a lubricating oil supply path A is formed in the set plate 6, and a passage 15 connected to a supply source of lubricating oil is formed in the housing 1. The passage 15 and the passage 14 of the set plate 6 are connected to each other by a connecting pipe 16. Lubricating oil reaches a space 11 through the lubricating oil supply path A. With the set plate 6 detached, the bearing 3 can be assembled in a bearing mount hole 2 from the either of the inside and outside of the housing 1.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a lubricating device for a bearing that requires lubrication, such as a rolling bearing that supports a transmission shaft of an engine transmission.

(Prior Art) Conventionally, lubricating oil was supplied to a bearing press-fitted into a housing or the like by making one or both sides of the bearing oil-tight.

(Problems to be Solved by the Invention) As mentioned above, since one or both sides of the bearing must be made oil-tight, the bearing mounting part of the housing must be shaped like a bag, and therefore the machining and bearing The directionality of assembly has been limited to only one direction, that is, the direction facing the bag-shaped bearing mounting portion.

For this reason, if the bearing mounting part of the housing is opened instead of bag-shaped and the bearing is mounted through the opening, a stop plate is provided to close the opening and hold the bearing in place. However, the structure for supplying lubricating oil to the bearing becomes complicated.

(Object of the Invention) The present invention has been made in view of the above-mentioned circumstances, and its purpose is to reliably supply lubricating oil to the cough bearing while having a degree of freedom in the direction of machining and assembly of the bearing. An object of the present invention is to provide a bearing lubrication device that can perform the following steps.

(Means for Solving the Problems) The present invention includes mounting a bearing in a bearing mounting hole formed in a housing, attaching a set plate to the housing to regulate the set position of the bearing in the axial direction, and mounting the set plate on the housing. A lubricating oil supply path is provided on the inner surface of the bearing side, one end of which is open and the other end is connected to a lubricating oil supply source, and lubricating oil can be supplied to the bearing through the lubricating oil supply path. It is constructed as follows.

(Function) The bearing mounting hole provided in the housing allows the bearing to be mounted from either the inside or the outside of the housing, thereby ensuring freedom in machining and directionality of bearing installation. In addition, lubricating oil can be reliably supplied to the bearing through a lubricating oil supply path that has one end open on the bearing-side inner surface of the set plate that presses the bearing and has the other end connected to a lubricating oil supply source.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 6.

FIG. 1 shows a bearing lubrication device according to an embodiment of the present invention, and in the figure, reference numeral 1 denotes, for example, a housing of a transmission. This housing 1 is provided with a bearing mounting hole 2, into which a bearing 3 such as a rolling bearing that requires lubrication is press-fitted. The bearing 3 supports a shaft body 4 such as a transmission shaft. The bearing 3 includes a seal member 5 on one side (inside the housing 1).

A set plate 6 is attached to the outer surface of the housing 1 with fixing means such as bolts, and a surface portion 8 having a step with respect to a fixing surface 7 with the housing 1 is formed on the inner surface of the set plate 6. , when the set plate 6 is fixed to the housing 1, the extension portion 7' of the fixing surface 7
is in contact with the outer ring body 9 of the bearing 3, and is in contact with the inner ring body 10 of the bearing 3.
A gap 11 is formed between the surface portion 8 and the surface portion 8 .

An oil supply pipe 12, which is a lubricating oil supply path A, is connected to the set plate 6, and an outlet opening of the oil supply pipe 12 opens into the gap 11. The oil supply pipe 12 is a lubricating oil supply source (
(not shown).

Therefore, the lubricating oil reaches the gap 11 from the lubricating oil supply path A and lubricates the bearing 3.

Furthermore, since the set plate 6 is attached to the housing 1 with fixing means such as bolts, when the set plate 6 is removed, the bearing 3 can be installed into the bearing mounting hole 2 either inside or outside the housing 1. It can also be done from the side.

FIGS. 2 to 6 are longitudinal cross-sectional views showing other embodiments of the present invention.

The bearing lubrication device shown in FIG. 2 has a gap 11 between the set plate 6 and the bearing 3, similar to the one shown in FIG. A passage 14 communicating with the set plate 6 is formed therein. Also, housing 1 has a? A passage 15 communicating with an oil supply source is formed in the set plate 6, and this passage 15 and the passage 14 of the set plate 6 communicate with each other through a communication pipe 16.

And the passage 14.15, the communication pipe 16 and the groove 13/r
lI Lubricating oil supply Lubricating oil supply route is at the bottom. The communication pipe 16 is removably fitted into a fitting hole 17 of the housing 1 and a fitting hole 18 of the set plate 6 via seal springs 19 and 20.

Therefore, the lubricating oil is supplied to the gap 11 through the lubricating oil supply path A.
Furthermore, when the seven-node plate 6 is removed, the bearing 3 can be installed into the bearing mounting hole 2 from either the inside or outside of the housing 1.

The bearing lubrication device shown in FIG. 3 has a gap between the bearing 3 and the set plate 6, similar to that shown in FIG. A fitting hole 21 is formed in the set plate 6. Reference numeral 22 denotes a housing on the engine side, for example, and a passage 23 communicating with a supply source of lubricating oil is formed in this housing 22, and an opening portion of this passage 23 serves as a fitting portion 24.

25 is a connecting pipe member, and fitting blocks 26 and 27 are attached to both ends of this connecting pipe member 25.

Then, one fitting block 26 of the connecting pipe member 25 is fitted into the fitting hole 21 of the set plate 6 via the seal ring 28, and the other fitting block 27 is inserted into the housing 22.
The lubricating oil supply path A is formed by the passage 23 and the connecting pipe member 25.

Therefore, the lubricating oil is supplied to the gap 1 through the lubricating oil supply path A.
1 and lubricates the bearing 3. Also, set plate 6
With the housing 1 removed, the bearing 3 can be installed into the bearing mounting hole 2 from either the inside or outside of the housing 1.

The bearing lubrication device shown in FIG. 4 has a gap 11 between the bearing 2 and the set plate 6, similar to the one shown in FIG. In addition, the set plate 6 has a fitting hole 31 and a passage 3.
2, one end of the passage 32 opens into the groove 30, and the other end opens into the circumferential surface of the insertion hole 31.

The housing 1 is provided with a passage 33 communicating with a supply source of lubricating oil, and the opening of the passage 33 is a threaded portion 34 . Reference numeral 35 denotes a bolt, and an annular groove 36 is formed in the circular surface of the bolt 35, and a passage 37 extending from the annular groove 36 to an end surface is formed in the bolt 35. A sealing groove 38 is formed in the bolt 35.

After the bolt 35 is inserted into the insertion hole 31 of the set plate 6 via the seal ring 39, the bolt 35 is inserted into the housing 1.
The passage 32 in the set plate 6 communicates with the annular groove 36 .

The passage 33, the annular groove 36, the passage 32, and the groove 30 constitute a lubricating oil supply passage A.

Therefore, the lubricating oil is supplied to the gap 11 through the lubricating oil supply path A.
The bearing 3 is then lubricated.

Further, when the bolts 35 are removed and the set plate 6 is removed, the bearing 3 can be installed into the bearing mounting hole 2 from either the inside or outside of the housing 1.

The bearing lubrication device shown in FIG. 5 has a gap 11 between the bearing and the set plate 6, similar to the one shown in FIG. Also, the set plate 6 has an end face 41 from tJ40.
A passage 42 is formed, and the opening of the passage 42 serves as a fitting portion 43. A fitting block 45 at the end of the supply pipe 44 is fitted into this fitting part 43 via a seal ring 46, and the supply pipe 44 communicates with a supply source of lubricating oil. The groove 40 forms a lubricating oil supply path A.

Therefore, the lubricating oil reaches the gap 11 from the lubricating oil supply path A and lubricates the bearing 3.

Further, with the set plates 1 to 6 removed, the bearing 3 can be installed into the bearing mounting hole 2 from either the inside or outside of the housing 1.

The bearing lubricating device shown in FIG. 6 is equipped with a set plate 6 that abuts the outer ring body 9 of each bearing 3 (2) (1a), and a gap 11 is formed between this set plate 6 and each bearing 3. A groove 47 is formed in the surface portion 8 of the set plate 6, a passage 49 communicating with the two grooves 47 is formed in the set plate 6, and a fitting part 50 is formed in the passage 49. is formed, and this insertion part 50
A fitting block 52 at the end of the supply pipe 51 is fitted through a seal ring 53, and the supply pipe 15 is connected to a supply source of lubricating oil, and the supply pipe 51, the passage 49, and the groove 4 are connected to each other.
7 forms a lubricating oil supply path A.

Therefore, the lubricating oil reaches the gap 11 from the lubricating oil supply path A and lubricates the bearing 3.

Furthermore, with the set plate 6 removed, the bearing 3 can be installed into the bearing mounting hole 2 from either the inside or outside of the housing 1.

Although the bearing 3 provided with the seal member 5 was used, the present invention can also be implemented using a bearing 3 without the seal member 5.

(Effects of the Invention) As detailed above, the bearing lubrication device according to the present invention has the following features:
A bearing is mounted in a bearing mounting hole formed in a housing, and a set plate for regulating the axial set position of the bearing is attached to the housing, and one end of the set plate is open on the inner surface on the bearing side and the other end is lubricated. A lubricating oil supply path connected to an oil supply source is provided, and the lubricating oil can be supplied to the bearing via the lubricating oil supply path.

Therefore, it becomes possible to supply lubricating oil from the lubricating oil supply path to the bearing to lubricate it, thereby ensuring the lubrication of the bearing and simplifying the structure of the lubricating device.

Moreover, when the set plate is removed, the bearing mounting hole in the housing allows the bearing to be installed into the housing from either the inside or outside of the housing, providing greater freedom in the direction of bearing installation. In addition to being able to be expanded, there is no need to form a bag-shaped bearing mounting portion in the housing, and the degree of freedom regarding the directionality of machining can be increased.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing one embodiment of the present invention, and FIGS. 2 to 6 are longitudinal cross-sectional views showing other different embodiments of the present invention. DESCRIPTION OF SYMBOLS 1...Housing, 2...Bearing mounting hole, 3...Bearing, 6...Set plate, A...Lubricating oil supply path. Applicant Honda Motor Co., Ltd. Agent Patent Attorney Toshihiko Watanabe 2 figures 3 signatures 4 figures 4 et al.

Claims (1)

[Claims] 1. Install the bearing into the bearing mounting hole formed in the housing,
A set plate that regulates the axial set position of the bearing is attached to the housing, and a lubricating oil supply path is provided on the inner surface of the set plate on the bearing side, one end of which is open and the other end of which is connected to a lubricating oil supply source. A lubricating device for a bearing, characterized in that the lubricating oil is supplied to the bearing via the lubricating oil supply path.