JPH04203656A - Lubricating device for transmission - Google Patents

Abstract

PURPOSE:To simplify structure as well as to facilitate a manufacturing process by installing a side cover part, forming each oil passage in and around an input shaft and a countershaft, in a downstream end of an oil guide trough installed almost parallel with the input shaft and the countershaft. CONSTITUTION:A countershaft 6 is installed almost parallelly in the axial direction of an input shaft 4, while an oil guide trough 22 is installed almost parallelly in the axial direction of the input shaft 4 and the countershaft 6 at each upper part in an intermediate part case 12 and a side case 14, and a side cover part 26, formed with an oil passage 24 to guide oil into a specified part in and around the input shaft 4 and the countershaft 6, is installed in a downstream end of this oil guide trough 22. Since the oil passage 24 for those of input shaft 4 and countershaft 6 is installed in this side cover part 26, lubrication around these shafts 4, 6 is made possible owing to only the lubricating measure, there is unnecessary to install two lubricating devices for these shafts 4, 6, structure is simplified manufacture becomes facilitated, and cost can be reduced.

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a lubrication device for a transmission, and particularly to a system for collecting oil scraped up by a rotating body such as a gear in a transmission by using an oil guide gutter. This invention relates to a transmission lubrication device that guides oil from a side case side to a predetermined location.

[Prior Art] Vehicle transmissions are equipped with many gear meshing parts and rotating sliding parts, and in order to lubricate and cool these meshing parts and sliding parts, oil pumps are used to forcibly lubricate and cool these meshing parts and sliding parts. Oil is supplied, or oil is supplied dropwise using the rotational force of a rotating body such as a gear or sprocket.

In devices that utilize the rotational force of the rotating body, the rotational force of the rotating body scrapes up oil, collects the scraped up oil in a gutter, and guides it to a predetermined location.

That is, as shown in FIG. 9.10, for example, the transmission 10
When lubricating the needle bearing 116 around the input shaft 104 of No. 2, an oil receiver projecting horizontally into the side case 114 is provided with a section 150;
The oil collected is transferred to the oil passage 13 formed in the axial direction inside the input shaft 104 via the oil passage 124 between the side case 114 and the oil receiver 150 and the cup 140.
Supply to 2. The oil that has passed through this oil passage 132 is supplied from the oil passage 132 to the needle bearing 116 via an oil supply passage 134 formed in the radial direction of the input shaft 104.

In addition, as a lubricating device for transmissions,
There is one disclosed in Publication No. 1. The transmission lubrication mechanism disclosed in this publication provides a feeding means such as a pump blade, screw, or tapered hole within the open end of the oil hole located on the outer periphery of the oil receiver pipe, without reducing the clearance. Additionally, the amount of lubricating oil leaked is extremely small, improving lubrication performance.

[Problems to be Solved by the Invention] Incidentally, in the conventional transmission lubrication device, the oil receiver transfers the oil collected by the section 150 to the input shaft 10.
It was only supplied within 4 days.

As shown in FIG. 9, oil is supplied to the needle bearing 116 around the counter shaft 106, which is provided substantially parallel to the axial direction of the input shaft 104, by another method not shown.

Therefore, it is necessary to provide two independent lubrication mechanisms, one for the input shaft and one for the countershaft, which complicates the configuration of the transmission, makes it difficult to manufacture, and increases costs, making it uneconomical. The disadvantage is that it is disadvantageous to

In addition, the need to provide two independent lubrication mechanisms within the transmission increases the size and weight of the transmission, making it impossible to save space when installing the transmission in a vehicle. This has the disadvantage of being disadvantageous in practical terms.

[Object of the Invention] Therefore, an object of the present invention is to provide a counter shaft approximately parallel to the axial direction of the input shaft of the transmission, and to provide a counter shaft approximately parallel to the axial direction of these shafts, in order to eliminate the above-mentioned disadvantages. By providing an oil guide gutter in parallel, and providing a side cover section at the downstream end of the oil guide gutter with an oil path formed therein to guide oil to predetermined locations around the input shaft and counter shaft,
Lubrication around the input shaft and counter shaft can be achieved using only one lubrication method, simplifying the configuration, making manufacturing easy, and reducing costs.In addition, the side cover attached externally to the transmission can control the lubrication conditions. The object of the present invention is to realize a transmission lubrication device that allows easy confirmation and flow rate setting.

[Means for solving the problem] In order to achieve this object, the present invention collects the oil scraped up by the rotating body in the transmission, and distributes this oil from the side case side to a predetermined location around the input shaft. In a lubrication device for a transmission to be guided, a counter shaft is provided substantially parallel to the axial direction of the input shaft, an oil guide gutter is provided substantially parallel to the axial direction of these shafts, and a downstream portion of the oil guide gutter is provided. The present invention is characterized in that a side cover portion is provided at the side end portion in which an oil passage is formed to guide oil to predetermined portions around the input shaft and the counter shaft.

[Function] With the above configuration, when oil is scooped up by the rotating body in the transmission, the oil is collected by the oil guide gutter and sent to the input shaft via the oil passage formed in the side cover part. It supplies oil to the input shaft and countershaft, lubricates the specified parts around the input shaft and countershaft, and has a simple configuration, easy manufacture, and low cost. The cover makes it easy to check the lubrication conditions and set the flow rate.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

1 to 8 show embodiments of this invention. Second
In the figure, 2 is a transmission, 4 is an input shaft, 6 is a counter shaft provided substantially parallel to the axial direction of the input shaft 4, and 8 is a transmission case.

The transmission 2 includes an engine-side case 10 on the internal combustion engine side (not shown) that constitutes a transmission case 8;
The input shaft 4 and the counter shaft 6 are pivotally supported by an intermediate case 12 and a side case 14 attached to the input shaft 4 and the counter shaft 6, respectively.

A basic transmission gear train 18 is disposed on the input shaft 4 and the counter shaft 6 located within the intermediate case 12 via needle bearings 16 .

Further, an additional transmission gear train 20 is disposed on the input shaft 4 and the counter shaft 6 located inside the side case 14.

An oil guide gutter 22 is provided in the upper portions of the intermediate case 12 and the side cases 14 in a direction substantially parallel to the axial directions of the input shaft 4 and the counter shaft 6, and the downstream end of the oil guide gutter 22 is A side cover portion 26 is provided in which an oil passage 24 is formed to guide oil to predetermined portions around the input shaft 4 and counter shaft 6.

More specifically, as shown in FIGS. 4 to 6, the oil guide gutter 22 has a large height position on the upstream side so that the oil flows down from the upstream side to the downstream side. The downstream side from the intermediate portion is formed into a C-shaped cross section.

Further, the side cover portion 26 is configured to include the side case 1
4, and as shown in FIG. 3.8, first and second recesses 28, 30 for bearings are formed at positions corresponding to the respective ends of the input shaft 4 and the counter shaft 6.

An oil passage 24 is formed that communicates the downstream end of the oil guide trough 22 with the first and second recesses 28,30. This oil passage 24 includes a first oil passage 24-1 that connects the downstream end of the oil guide trough 22 and the first recess 28, and a first
A second oil passage 24-2 that connects the recess 28 and the second recess 30
It consists of

Further, a first oil passage 32 is formed in the axial direction from the side end of the side cover part 26 inside the input shaft 4, and a first oil supply extending in the radial direction of the input shaft 4 from this first oil passage 32 to the outer circumferential portion. A plurality of passages 34 are provided.

A second oil passage 36 is formed inside the counter shaft 6 in the axial direction from the side end of the side cover portion 26, similar to the input shaft 4 described above, and the counter shaft extends from the second oil passage 36 to the outer circumference. 6 radially extending second oil supply passages 38 are provided.

Reference numeral 40 denotes a first cup inserted into the side end of the first oil passage 32 of the input shaft 4 on the side cover part 26 , and numeral 42 denotes a side cover part 26 of the second oil passage 36 of the counter shaft 6 .
A second cup inserted into the side end.

Next, the effect will be explained.

When the oil in the transmission 2 is scraped up by the rotating body consisting of the basic transmission gear train 18 and the like in the transmission 2,
Oil is collected by the oil guide trough 22 and fed from the downstream end of the oil guide trough 22 to the first oil passage 24-1, and a portion of the oil flows down at the first recess 28 portion. Then, the branched oil is supplied to the end of the first oil passage 32 of the input shaft 4 on the side cover part 26 side through the first cup 40, and this oil is transferred from the first oil passage 32 to the first oil supply passage 34. The lubricant is supplied to the needle bearing 16, and lubricates the needle bearing 16, which is a predetermined portion around the input shaft 4.

Further, the oil that has not flowed down in the first recess 28 reaches the second recess 30 through the second oil passage 24-2, and in this second recess 30, the oil flows through the second cup 42 of the counter shaft 6. The oil is supplied to the end of the oil passage 36 on the side cover part 26 side, and the oil is supplied to the second oil passage 36.
The oil is supplied to the needle bearing 16 portion through the second oil supply passage 38, and lubricates the needle bearing 16 portion, which is a predetermined portion around the counter shaft 6.

As a result, by providing the oil passages 24 for the input shaft 4 and the counter shaft θ in the side cover portion 26, it is possible to lubricate the areas around the input shaft 4 and the counter shaft 6 using only one lubrication method, which is different from the conventional method. Thus, there is no need to provide two lubrication mechanisms for the input shaft 4 and the counter shaft 6, the structure can be simplified, manufacturing is easy, and the cost can be kept low, which is economically advantageous.

Further, by externally attaching the side cover portion 26 to the side case 14 of the transmission 2, detailed lubrication conditions can be easily confirmed and flow rate settings can be easily performed during development, which is advantageous in practice.

[Effects of the Invention] As explained in detail above, according to the present invention, the counter shaft is provided approximately parallel to the axial direction of the input shaft of the transmission, and the oil is provided approximately parallel to the axial direction of these shafts. A guide gutter is provided, and a side cover part with an oil path formed at the downstream end of the oil guide gutter to guide oil to predetermined areas around the input shaft and counter shaft is provided, so that the only lubrication method is to ensure that the input shaft and It is possible to lubricate the area around the counter shaft, there is no need to provide two lubrication mechanisms as in the conventional case, the structure can be simplified, manufacturing is easy, and costs can be reduced.

Further, by externally attaching the side cover portion to the transmission, detailed lubrication conditions can be confirmed and flow rate settings can be easily performed during development, which is advantageous in practice.

[Brief explanation of the drawing]

1 to 8 show embodiments of the present invention, FIG. 1 is an enlarged partially cutaway sectional view of the main parts of the transmission, FIG. 2 is a partially cutaway front view of the transmission, and FIG. 3 is a partially cutaway sectional view of the transmission. FIG. 4 is a front view of the oil guide gutter, FIG. 5 is a plan view of the oil guide gutter, FIG. 6 is a schematic enlarged sectional view taken along line VI-VI in FIG. 5, and FIG. 7 is a left side view of the transmission. 8 is an enlarged sectional view of the cup, and FIG. 8 is a right side view of the side cover portion. 9 and 10 show the prior art of the present invention, FIG. 9 is an enlarged partially cutaway sectional view of the main part of the transmission, and FIG. 10 is a sectional view of the side case. In the figure, 2 is a transmission, 4 is an input shaft, 6 is a counter shaft, 8 is a transmission case, 14 is a side case, 16 is a needle bearing, 22 is an oil guide gutter, 24 is an oil passage, 2
4-1 is the first oil passage, 24-2 is the second oil passage, 26 is the side cover part, 28 is the first recess, 30 is the second recess, 32 is the first oil passage, and 34 is the first oil supply passage. , 36 is the second
The oil passage 38 is a second oil supply passage. Patent applicant Suzuki Co., Ltd. Agent
Person Patent Attorney Yoshimi Nishigo@men's engraving Figure 4 Figure 5 2 Figure 6 Figure 7 Figure 11, Display of the incident Patent Application No. 2-333792 2, Name of the invention Transmission lubrication device 3, Amendment Relationship with the case of a person who does
08) Suzuki Motor Corporation Representative Osamu Suzuki 4, Agent 101 Tn 03.3292
-4411 (Representative) Address Saigo Patent Building, 2-8 Kanda Ogawamachi, Chiyoda-ku, Tokyo Name (8005) Patent Attorney Nishidatan TS Yoshimi, 9;

Claims (1)

[Claims] 1. In a transmission lubricating device that collects oil scraped up by a rotating body in the transmission and guides this oil from the side case side to a predetermined part around the input shaft, approximately in the axial direction of the input shaft. A counter shaft is provided in parallel, an oil guide gutter is provided substantially parallel to the axial direction of these shafts, and a downstream end of the oil guide gutter guides oil to a predetermined portion around the input shaft and the counter shaft. A lubrication device for a transmission, characterized in that a side cover portion is provided with an oil passage formed therein.