KR19980040557U - Oil supply mechanism of manual transmission - Google Patents

Abstract

The present invention is for supplying oil to each gear inside the manual transmission of a vehicle, and relates to an oil supply mechanism of a manual transmission capable of supplying sufficient oil to each gear irrespective of the separation distance from the ring gear scattering oil will be.

According to the present invention, the oil supply mechanism of the manual transmission is installed above the input / output shaft of the mission case, and drops oil onto the gears of the input / output shaft through the oil hole formed at the bottom while flowing the oil scattered from the ring gear. In the oil supply mechanism of a manual transmission including a drip-type oil sump, the oil sump consists of two parts: a first oil sump that supplies only a gear far from the ring gear, and a second oil sump that supplies a close gear.

Description

Oil supply mechanism of manual transmission

The present invention relates to an oil supply mechanism for supplying oil to each gear inside a manual transmission of a vehicle. More specifically, sufficient oil is supplied to each gear irrespective of a separation distance from a ring gear that scatters oil. The oil supply mechanism of the manual transmission which can be supplied easily.

In general, a vehicle engine is equipped with a transmission that adjusts the output of the engine to a torque and a rotation ratio in a state suitable for a driving condition, and transmits the transmission to a propulsion shaft for driving the driving wheel.

These transmissions are divided into automatic and manual.

The manual transmission is a device that changes the combination of large and small gears inside the housing by the driver's operation, and determines the output of the engine according to the gear ratio operated and the output speed of the engine, and the automatic automatic transmission is a manual transmission device. The combination of clutch and gear is automatically made according to the operating conditions, where oil is used as the power transmission medium.

Meanwhile, the manual transmission includes a plurality of gears adjacent to and installed on a primary shaft and a secondary shaft installed side by side in a mission case, and the input shaft receives power from a drive shaft of the engine. The gear ratio is transmitted to the input shaft by the gear ratio, and the output shaft transmits this force to the differential gear, which is a differential device, to drive the wheel.

Since each gear of the input / output shaft, which is the power transmission medium in the manual transmission, is rotated on the highway, each shaft should be supplied with oil for lubricating and cooling to prevent wear and thermal deformation of the gear due to friction.

Currently, in the transmission being manufactured, oil is accumulated in the mission case and the bottom, and is scattered by the ring gear and sprayed directly onto the gear, and gears from the center of the shaft through oil guide holes formed at the center of each shaft through the mission case. In addition, the oil is supplied through three paths in which scattered oil is collected in the drip tray-shaped drip tray installed in the upper part and flows through the hole formed in the drip tray to be supplied to the gear.

Let's look at this more specifically.

The mission case is always filled with oil above a certain level, and this oil is scattered to the upper side of the transmission case by the rotation of the differential gear installed at the lower end of the input shaft at the bottom of the mission case as the engine is operated.

The oil splashed in this way is sprayed directly on the journal part of each gear and the friction surface of the sleeve, and flows in the oil reservoir of the drip tray type installed in the upper part of the input shaft and is formed in the oil reservoir at the top of each gear. Through each gear is fed off. In addition, a portion of the case rises to the oil inlet groove formed in the input shaft fixing part of the mission case and is collected by a funnel-shaped oil funnel installed at the input shaft end and flows into the oil guide hole formed in the axial direction at the center of the input / output shaft. The oil introduced into the oil guide hole is supplied to the journal part of each gear 3 through the oil hole by the centrifugal force according to the rotation of each shaft, thereby lubricating the journal part.

However, in the transmission having the conventional oil supply mechanism as described above, the gear away from the ring gear is supplied with oil from the oil sump, the gear relatively far from the ring gear is not supplied with a sufficient amount of oil. There was a downside.

This is because in the conventional oil supply mechanism, the oil in the oil sump is first supplied to the gear on the near side, and as the distance from the ring gear increases, the amount of oil flowing along the sump decreases.

The present invention solves the conventional problems as described above, and the oil sump is divided into two, a first oil sump for supplying the gear close to the ring gear and a second oil sump for supplying the far gear side. It is an object of the present invention to provide an oil supply mechanism of a manual transmission gear that can supply almost the same amount of oil to each gear regardless of the separation distance.

1 is a cross-sectional view of a transmission showing the oil supply mechanism of the manual transmission for an embodiment of the present invention.

Figure 2 is a plan view showing the structure of the oil sump according to an embodiment of the present invention.

3 is a side view of FIG. 2;

* Description of the symbols for the main parts of the drawings *

1: Mission case 2: Input shaft

3: output shaft 4: first oil reservoir

5: 2nd oil support 4a, 5a: Oil ball

6: ring gear

The oil supply mechanism of the manual transmission of the present invention for achieving the above object is installed between the input and output shaft of the mission case, the input and output through the oil hole formed on the bottom while flowing the oil splashed from the ring gear In the oil supply mechanism of the manual transmission comprising a drip tray type drip drop to each gear of the gearbox, the drip tray is the first oil dipper to supply only to the gear far from the ring gear, and the second oil to supply to the close gear It is characterized by consisting of two of the receiving.

EXAMPLE

Hereinafter, a preferred embodiment of the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

In describing the present embodiment, the configuration of the present invention, which is the same as the conventional technology described at the outset, will be mainly described only by the parts which have been improved so as not to overlap with the conventional one possible for clarity.

Attached Figure 1 is a cross-sectional view of the transmission showing the oil supply mechanism of the manual transmission according to an embodiment of the present invention, Figure 2 is a plan view showing the structure of the oil sump according to an embodiment of the present invention, Figure 3 2 is a side view.

As shown in FIG. 1, the oil supply mechanism of the manual transmission in the present embodiment includes three oil reservoirs installed vertically adjacent to an upper side between the input shaft 2 and the output shaft 3 in the mission case 1. 4,5).

Here, as can be seen in FIGS. 3 and 4, the second oil dish 4 disposed above is longer than the third oil dish 5 below, and the oil ball (3) from the point where the third oil dish 5 ends. 4a) is formed. Therefore, the oil scattered by the ring gear 6 is received and oil is supplied only to the gear on the end side through the oil hole 4a.

In addition, the third oil receiver 5 is relatively shorter than the second oil receiver 4, and an oil hole 5a is formed over the entire length. Therefore, this third oil receiver 5 supplies oil only to the gear on the starting end side (side adjacent to the ring gear) of the oil scattered from the ring gear 6.

As described above, the oil supply mechanism of the manual transmission in the present embodiment is an oil supply for each gear on the side close to the ring gear 6 on each axis, and is composed of three oil receivers 4 and 5 separately. Since it has an oil supply path, the oil supply amount for each gear can be kept almost the same regardless of its relative position to the ring gear.

According to the present invention as described in detail above, each gear of the input shaft and the output shaft is supplied with almost the same amount of oil irrespective of the relative separation distance to the ring gear, thereby improving the driving performance of the transmission, It is possible to prevent the sticking phenomenon of the gears relatively far from the ring gear.

On the other hand, the present invention is not limited to the above-described specific preferred embodiments, anyone of ordinary skill in the field to which the subject innovation belongs without departing from the gist of the subject innovation claimed in the utility model registration claims Modifications may be made.

Claims (1)

The manual transmission is installed above the input / output shaft of the mission case, and receives the oil scattered from the ring gear and flows down to each gear of the input / output through the oil hole formed at the bottom of the manual transmission. In the oil supply mechanism, The oil receiving mechanism is an oil supply mechanism of a manual transmission, characterized in that it consists of two of the first oil support to supply only to the gear far from the ring gear, and the second oil support to supply to the close gear.