CN216894658U - Motorcycle engine crankcase with clutch separated and lubricated - Google Patents

Abstract

The utility model relates to the technical field of gasoline engines used for vehicles, in particular to a motorcycle engine crankcase with a clutch separated and lubricated; the crankshaft box is divided into a first cavity and a second cavity by a transverse partition, a second partition is arranged in the first cavity and is matched with a partition on the crankshaft box cover, the first cavity is divided into a third cavity and a fourth cavity by the second partition, a clutch unit is assembled on a main shaft unit and is located in the third cavity, after an engine is assembled, the second partition is matched with the partition on the crankshaft box cover to form the completely sealed third cavity and the completely sealed fourth cavity, the clutch unit is located in the completely sealed third cavity, clutch lubricating oil is located in the third cavity, and the lubricating oil crankcase is located in the second cavity and the fourth cavity to achieve necessary conditions for separating and lubricating the clutch unit.

Description

Motorcycle engine crankcase with clutch separated and lubricated

Technical Field

The utility model relates to the technical field of gasoline engines used for vehicles, in particular to a motorcycle engine crankcase with a clutch separated and lubricated.

Background

Most of the four-stroke engines of the prior motorcycle are only provided with one oil pump and are arranged on a crankcase, and a heat engine system, a transmission system and lubrication and heat dissipation including a clutch of the engine are all powered by the oil pump to convey lubricating oil to each part.

In order to ensure that lubricating oil circulates smoothly, a plurality of through holes are reserved on the inner wall of the crankcase, parts which are supported by the inner wall of the crankcase and are arranged on the inner wall of the crankcase and the inner wall of the crankcase usually have no sealing requirement, and in order to avoid the friction plate of the clutch from wearing and polluting the lubricating oil, the service life of the whole engine is reduced, so that when the clutch of the engine needs to be lubricated independently, the existing crankcase does not have the requirement that the lubricating oil in the crankcase of the engine and the lubricating oil of the clutch are relatively independent and not communicated with each other.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a motorcycle engine crankcase with a separated and lubricated clutch, which solves the problem that the prior crankcase does not have the requirement that the lubricating oil in the engine crankcase and the lubricating oil of the clutch are relatively independent and not communicated with each other when the clutch of an engine needs to be independently lubricated to avoid the pollution of the wear of a friction plate of the clutch to the lubricating oil, which causes the reduction of the service life of the whole engine in the prior art.

In order to achieve the purpose, the utility model provides a motorcycle engine crankcase with a clutch separated and lubricated, which comprises a crankcase body detachably connected with a crankcase cover, wherein a transverse partition is arranged on the crankcase body and divides the crankcase body into a first cavity and a second cavity, the first cavity is positioned on one side of the crankcase body close to the crankcase cover, the second cavity is positioned on one side of the crankcase body far away from the crankcase cover, a second partition is arranged inside the first cavity and is matched with the partition on the crankcase cover, and the second partition divides the first cavity into a third cavity and a fourth cavity;

the transverse partition is provided with a crankshaft hole, a spindle hole, a gear shifting shaft hole and a speed changing drum hole, the crankshaft hole is used for installing a crankshaft unit, the spindle hole is used for installing a spindle unit, the gear shifting shaft hole is used for installing a gear shifting shaft unit, the speed changing drum hole is used for installing a speed changing drum, the crankshaft unit and the spindle unit are assembled on the upper half portion of the third cavity, the gear shifting shaft unit and the speed changing drum are assembled on the lower half portion of the third cavity, a clutch unit is assembled on the spindle unit, and the clutch unit is located inside the third cavity.

The gear shifting shaft hole is provided with a gear shifting shaft oil seal hole which is used for installing a gear shifting shaft oil seal, the speed changing drum hole is also provided with a speed changing drum oil seal hole which is used for installing a speed changing drum oil seal.

The crankshaft unit is provided with a crankshaft bearing with a sealing cover, and the crankshaft bearing corresponds to the crankshaft hole.

The spindle unit is provided with a spindle bearing with a sealing cover, and the spindle bearing corresponds to the spindle hole.

The transverse partition is further provided with a first air pressure balance hole, a second air pressure balance hole, a third air pressure balance hole and an oil through hole, the first air pressure balance hole and the second air pressure balance hole are located above the third cavity, the third air pressure balance hole is located above the fourth cavity, and the oil through hole is located below the fourth cavity.

The utility model relates to a motorcycle engine crankcase with a separated and lubricated clutch, which comprises a crankcase body detachably connected with a crankcase cover, wherein the crankcase body is divided into a first cavity and a second cavity by a transverse partition, a second partition is arranged in the first cavity and is matched with a partition on the crankcase cover, the first cavity is divided into a third cavity and a fourth cavity by the second partition, a clutch unit is assembled on a main shaft unit and is positioned in the third cavity, after the engine is assembled, the second partition is matched with the partition on the crankcase cover, so that the third cavity and the fourth cavity which are completely sealed are formed, the clutch unit is positioned in the third cavity which is completely sealed, clutch lubricating oil is positioned in the third cavity, and the crankcase lubricating oil is positioned in the second cavity and the fourth cavity, thereby achieving the necessary condition for the clutch unit to be lubricated separately.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is an assembly view of a crankcase of a motorcycle engine with a clutch release lubrication provided by the present invention.

Fig. 2 is a schematic structural diagram of a first cavity provided by the utility model.

Fig. 3 is a schematic structural view of a second cavity provided by the utility model.

1-crankcase body, 2-transverse partition, 3-first cavity, 4-second cavity, 5-second partition, 6-third cavity, 7-fourth cavity, 8-crankshaft hole, 9-main shaft hole, 10-shift shaft hole, 11-speed change drum hole, 12-crankshaft unit, 13-main shaft unit, 14-shift shaft unit, 15-speed change drum, 16-clutch unit, 17-shift shaft oil seal hole, 18-shift shaft oil seal, 19-speed change drum oil seal hole, 20-speed change drum oil seal, 21-crankshaft bearing, 22-main shaft bearing, 23-first air pressure balance hole, 24-second air pressure balance hole, 25-third air pressure balance hole and 26-oil through hole.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 3, the utility model provides a motorcycle engine crankcase with a clutch separated and lubricated, comprising a crankcase body 1 detachably connected with a crankcase cover, wherein a transverse partition 2 is arranged on the crankcase body 1, the crankcase body 1 is divided into a first cavity 3 and a second cavity 4 by the transverse partition 2, the first cavity 3 is positioned on one side of the crankcase body 1 close to the crankcase cover, the second cavity 4 is positioned on one side of the crankcase body 1 far from the crankcase cover, a second partition 5 is arranged inside the first cavity 3, the second partition 5 is matched with the partition on the crankcase cover, and the first cavity 3 is divided into a third cavity 6 and a fourth cavity 7 by the second partition 5;

the transverse partition 2 is provided with a crankshaft hole 8, a main shaft hole 9, a gear shifting shaft hole 10 and a speed changing drum hole 11, the crankshaft hole 8 is used for installing a crankshaft unit 12, the main shaft hole 9 is used for installing a main shaft unit 13, the gear shifting shaft hole 10 is used for installing a gear shifting shaft unit 14, the speed changing drum hole 11 is used for installing a speed changing drum 15, the crankshaft unit 12 and the main shaft unit 13 are both assembled on the upper half part of the third cavity 6, the gear shifting shaft unit 14 and the speed changing drum 15 are both assembled on the lower half part of the third cavity 6, a clutch unit 16 is assembled on the main shaft unit 13, and the clutch unit 16 is located inside the third cavity 6.

In this embodiment, the transverse partition 2 divides the crankcase body 1 into a first cavity 3 and a second cavity 4, a second partition 5 is arranged inside the first cavity 3, the second partition 5 is matched with a partition on the crankcase cover, the second partition 5 divides the first cavity 3 into a third cavity 6 and a fourth cavity 7, a clutch unit 16 is assembled on the main shaft unit 13, the clutch unit 16 is positioned inside the third cavity 6, after the engine is assembled, the second partition 5 is matched with the partition on the crankcase cover, so that the completely sealed third cavity 6 and fourth cavity 7 are formed, the clutch unit 16 is positioned in the completely sealed third cavity 6, the clutch lubricating oil is positioned in the third cavity 6, the crankcase lubricating oil is positioned in the second cavity 4 and the fourth cavity 7, thereby fulfilling the necessary condition for de-lubrication of the clutch unit 16.

Further, a gear shifting shaft oil seal hole 17 is arranged on the gear shifting shaft hole 10, the gear shifting shaft oil seal hole 17 is used for installing a gear shifting shaft oil seal 18, a speed changing drum oil seal hole 19 is further arranged on the speed changing drum hole 11, and the speed changing drum oil seal hole 19 is used for installing a speed changing drum oil seal 20.

In the present embodiment, the shift shaft oil seal 18 is provided at the shift shaft hole 10, and the shift drum oil seal 20 is provided at the shift drum hole 11, so as to achieve a good sealing effect.

Further, the crank unit 12 is provided with a crank bearing 21 with a sealing cover, and the crank bearing 21 corresponds to the crank hole 8.

In the present embodiment, the crankshaft bearing 21 with a sealing cover is disposed at the crankshaft hole 8, and the sealing cover achieves a relative sealing effect, so that the clutch lubricating oil in the third cavity 6 and the crankcase lubricating oil in the second cavity 4 are independent of each other.

Further, a spindle bearing 22 with a sealing cover is disposed on the spindle unit 13, and the spindle bearing 22 corresponds to the spindle hole 9.

In the present embodiment, the spindle bearing 22 with a sealing cover is disposed at the spindle hole 9, and the sealing cover achieves a relative sealing effect, so that the clutch lubricating oil in the third cavity 6 and the crankcase lubricating oil in the second cavity 4 are independent of each other.

Further, the transverse partition 2 is further provided with a first air pressure balance hole 23, a second air pressure balance hole 24, a third air pressure balance hole 25 and an oil through hole 26, the first air pressure balance hole 23 and the second air pressure balance hole 24 are both located above the third cavity 6, the third air pressure balance hole 25 is located above the fourth cavity 7, and the oil through hole 26 is located below the fourth cavity 7.

In this embodiment, through first atmospheric pressure balancing hole 23 with second atmospheric pressure balancing hole 24, balance third die cavity 6 with atmospheric pressure between the second die cavity 4, through third atmospheric pressure balancing hole 25, balance fourth die cavity 7 with atmospheric pressure between the second die cavity 4, set up on the fourth die cavity 7 oil through hole 26 makes crankcase lubricating oil in the second die cavity 4 with fourth die cavity 7 is linked together, is convenient for cover the surplus of the crankcase lubricating oil of observation through the oil level mirror that sets up on the crankcase.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims (5)

1. A motorcycle engine crankcase with a clutch separated and lubricated is characterized in that,

the crankshaft box body is detachably connected with a crankshaft box cover, a transverse partition is arranged on the crankshaft box body and divides the crankshaft box body into a first cavity and a second cavity, the first cavity is located on one side, close to the crankshaft box cover, of the crankshaft box body, the second cavity is located on one side, far away from the crankshaft box cover, of the crankshaft box body, a second partition is arranged inside the first cavity and is matched with the partition on the crankshaft box cover, and the first cavity is divided into a third cavity and a fourth cavity by the second partition;

the transverse partition is provided with a crankshaft hole, a spindle hole, a gear shifting shaft hole and a speed changing drum hole, the crankshaft hole is used for installing a crankshaft unit, the spindle hole is used for installing a spindle unit, the gear shifting shaft hole is used for installing a gear shifting shaft unit, the speed changing drum hole is used for installing a speed changing drum, the crankshaft unit and the spindle unit are assembled on the upper half portion of the third cavity, the gear shifting shaft unit and the speed changing drum are assembled on the lower half portion of the third cavity, a clutch unit is assembled on the spindle unit, and the clutch unit is located inside the third cavity.

2. A clutch release lubricated motorcycle engine crankcase according to claim 1,

the gear shifting shaft hole is provided with a gear shifting shaft oil seal hole which is used for installing a gear shifting shaft oil seal, the speed changing drum hole is also provided with a speed changing drum oil seal hole which is used for installing a speed changing drum oil seal.

3. A clutch release lubricated motorcycle engine crankcase according to claim 1,

and the crankshaft unit is provided with a crankshaft bearing with a sealing cover, and the crankshaft bearing corresponds to the crankshaft hole.

4. A clutch release lubricated motorcycle engine crankcase according to claim 1,

and a main shaft bearing with a sealing cover is arranged on the main shaft unit and corresponds to the main shaft hole.

5. A clutch release lubricated motorcycle engine crankcase according to claim 1,

the transverse partition is further provided with a first air pressure balance hole, a second air pressure balance hole, a third air pressure balance hole and an oil through hole, the first air pressure balance hole and the second air pressure balance hole are located above the third cavity, the third air pressure balance hole is located above the fourth cavity, and the oil through hole is located below the fourth cavity.

Images