CN221236755U - Box lubricating structure of motorcycle engine crankcase - Google Patents
Box lubricating structure of motorcycle engine crankcase Download PDFInfo
- Publication number
- CN221236755U CN221236755U CN202322701080.0U CN202322701080U CN221236755U CN 221236755 U CN221236755 U CN 221236755U CN 202322701080 U CN202322701080 U CN 202322701080U CN 221236755 U CN221236755 U CN 221236755U
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- CN
- China
- Prior art keywords
- oil
- crankcase
- lubricating oil
- crankcase body
- lubricating
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 12
- 239000003921 oil Substances 0.000 claims abstract description 125
- 239000010687 lubricating oil Substances 0.000 claims abstract description 61
- 239000003595 mist Substances 0.000 claims abstract description 21
- 238000005461 lubrication Methods 0.000 claims description 15
- 239000011324 bead Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 6
- 210000003205 muscle Anatomy 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a box body lubricating structure of a motorcycle engine crankcase, which comprises a left crankcase body and a right crankcase body which are fixedly connected, wherein at least one lubricating oil duct communicated with a balance shaft hole is arranged in the left crankcase body and the right crankcase body and adjacent to the balance shaft hole of the left crankcase body and the right crankcase body, the lubricating oil duct is positioned on the upper side of the balance shaft hole, and the outer end of the lubricating oil duct is sealed by a plug; the oil guide convex ribs are arranged above the balance shaft holes in the left crankcase body and the right crankcase body and beside the lubricating oil passage, and are obliquely arranged, so that oil mist can be collected and guided into the lubricating oil passage.
Description
Technical Field
The utility model relates to the field of motorcycle engines, in particular to a box lubricating structure of a motorcycle engine crankcase.
Background
The existing box lubricating structures of the crank cases of the motorcycle engines are all splash lubrication, and specifically, engine oil in the box lubricates components in the engine in a splash mode through a crank shaft running at a high speed in the process of running the engine at a high speed. However, during the lubrication process, the lubrication condition of part of the transmission components (such as the balance shaft) is not up to the standard, so that the operation performance of the components is affected.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a box body lubricating structure of a motorcycle engine crankcase, which solves the problem that the running performance of a balance shaft is reduced because a lubricating mode in the prior art cannot well lubricate the balance shaft in the engine.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The box body lubricating structure of the motorcycle engine crankcase comprises a left crankcase body and a right crankcase body which are fixedly connected, wherein at least one lubricating oil duct communicated with a balance shaft hole is arranged in the left crankcase body and the right crankcase body and adjacent to the balance shaft hole of the left crankcase body and the right crankcase body, the lubricating oil duct is positioned on the upper side of the balance shaft hole, and the outer end of the lubricating oil duct is sealed by a plug; the oil guide convex ribs are arranged above the balance shaft holes in the left crankcase body and the right crankcase body and beside the lubricating oil passage, and are obliquely arranged, so that oil mist can be collected and guided into the lubricating oil passage. Thus, the upper ends of the two balance shaft holes in the crankcase are provided with the lubricating oil ducts, the inner cavities of the balance shaft holes and the inner cavities of the case body are communicated, oil mist is coagulated on the inner cavity wall of the case body, and directly flows downwards into the balance shaft bearings in the inner cavities of the balance shaft holes to lubricate the balance shaft bearings and the balance shafts which are arranged in the balance shaft holes under the action of gravity. Besides, the lubricating oil channel is also provided with an oil guide convex rib, and the oil guide convex rib is positioned above the balance shaft hole and is positioned above the oil mist collecting place and the oil inlet of the lubricating oil channel, so that lubricating oil formed by the collected oil mist can be guided to the oil inlet of the lubricating oil channel after the oil mist is collected, and the lubricating oil is introduced into the lubricating oil channel. The oil duct is additionally arranged on the shaft hole of the balance shaft independently, and the oil guide convex rib is arranged to guide the oil mist collected at the top of the box body, so that the balance shaft can be lubricated independently, and the lubricating performance of the balance shaft is improved.
Further, an oil seal is embedded in shaft holes of the output shafts on the outer sides of the left crankcase body and the right crankcase body, and oil drain holes corresponding to the oil seal are arranged on the inner sides of the left crankcase body and the right crankcase body. Therefore, the oil drain holes corresponding to the oil seals are arranged in the shaft holes of the two output shafts of the box body, and under the condition that enough oil lubrication output bearings are ensured, the oil seals are prevented from being ejected out due to overlarge oil pressure caused by oil accumulation or oil leakage is prevented from being caused by oil seal aging.
Further, an oil blocking convex rib is arranged between the inner side of the left crank case and the inner side of the right crank case, and between the shaft holes of the output shafts of the left crank case and the right crank case and the shaft holes of the crank shafts, and the two oil blocking convex ribs are correspondingly arranged and are clung together after being assembled to form an oil blocking plate; the upper edge of the oil baffle is positioned below the oil drain hole, and the oil baffle, the left crankcase body and the side wall of the right crankcase body form an oil storage tank together. Therefore, after the left crankcase and the right crankcase are assembled, the two oil baffle ribs are correspondingly clung to form an oil baffle plate which spans in the crankcase and is in sealing connection with the box body, and the oil baffle plate is positioned below the oil drain hole, so that oil drain Kong Huiyou can be recovered. Meanwhile, the oil baffle plate and the side wall of the crankcase form an oil storage pool, the upper end of which corresponds to the oil drain hole and is positioned below the output shaft, lubricating oil can be collected in the oil storage pool after a certain time, when an engine runs, the lubricating oil is brought onto the gear through the rotation of a gear on the output shaft, and when the gear rotates, the lubricating oil is thrown to a transmission shaft main shaft and a transmission shaft auxiliary shaft above the output shaft, so that the output shaft gear drives the oil to splash and lubricate other transmission gears.
Further, the side walls of the inner sides of the left crankcase body and the right crankcase body are respectively provided with a bulge corresponding to the lubricating oil duct, and the bulges are positioned right above the lubricating oil duct. Therefore, the bulge corresponding to the oil inlet of the lubricating oil duct is arranged on the inner wall of the crankcase body, and after oil mist is attached to and collected on the bulge, the oil mist is collected to form lubricating oil, and the lubricating oil is dripped into the lubricating oil duct, so that the lubricating oil quantity in the lubricating oil duct is further increased.
Further, an arc-shaped oil guiding surface is arranged between the oil guiding convex rib and the lubricating oil duct. Therefore, the arc-shaped oil guide surface arranged between the oil guide convex ribs and the lubricating oil duct can guide the oil mist condensed on the oil guide convex ribs to the lower ends of the oil guide convex ribs after converging, and finally, the lubricating oil is guided into the lubricating oil duct through the arc-shaped oil guide surface. The arc oil guiding surface is arc-shaped, and has a good oil guiding effect.
Drawings
FIG. 1 is a schematic view of the internal side structure of a left crankcase in an embodiment;
FIG. 2 is a schematic view of the outer side of the left crankcase in an embodiment;
FIG. 3 is a schematic view of the outer side of the right crankcase in an embodiment;
FIG. 4 is a schematic view of the inner side of the right crankcase in an embodiment;
Fig. 5 is a cross-sectional view of A-A in fig. 2, 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-5, the box lubrication structure of the motorcycle engine crankcase provided by the embodiment comprises a left crankcase body and a right crankcase body which are fixedly connected, wherein at least one lubrication oil duct 2 communicated with the balance shaft hole 1 is arranged in the left crankcase body and the right crankcase body and adjacent to the balance shaft hole 1 of the left crankcase body and the right crankcase body, the lubrication oil duct 2 is positioned on the upper side of the balance shaft hole 1, and the outer end of the lubrication oil duct is sealed by a plug; an oil guide convex rib 3 is further arranged above the balance shaft hole 1 and beside the lubricating oil duct 2 in the left crankcase body and the right crankcase body, and the oil guide convex rib 3 is obliquely arranged and can collect oil mist and guide the collected oil mist into the lubricating oil duct 2. Thus, the upper ends of the two balance shaft holes 1 in the crankcase are provided with the lubrication oil ducts 2, the inner cavities of the balance shaft holes 1 and the inner cavities of the box body are communicated, oil mist is coagulated on the inner cavity wall of the box body, and directly flows downwards into the inner cavities of the balance shaft holes 1 to lubricate the balance shaft bearings under the action of gravity, so that the balance shaft bearings and the balance shafts arranged in the balance shaft holes 1 are lubricated. Besides, the oil guide convex rib 3 is arranged beside the lubricating oil duct 2, the oil guide convex rib 3 is positioned above the balance shaft hole 1 and is a place where oil mist is collected, and is positioned above an oil inlet of the lubricating oil duct 2, so that lubricating oil formed by collected oil mist can be guided to the oil inlet of the lubricating oil duct 2 after the oil mist is collected, and the lubricating oil is introduced into the lubricating oil duct 2. The lubricating oil duct 2 is additionally arranged on the balance shaft hole 1 independently, and the oil guide convex rib 3 is arranged to guide oil mist collected at the top of the box body, so that the balance shaft can be lubricated independently, and the lubricating performance of the balance shaft is improved.
Further, an oil seal is embedded in the shaft hole 6 of the output shaft at the outer sides of the left crankcase body and the right crankcase body, and an oil drain hole 9 corresponding to the oil seal is arranged at the inner sides of the left crankcase body and the right crankcase body. Thus, the oil drain holes 9 corresponding to the oil seals are arranged in the shaft holes 6 of the two output shafts of the box body, and under the condition that enough oil is ensured to lubricate the output bearings, the oil seals are prevented from being ejected out due to overlarge oil pressure caused by oil accumulation or oil leakage is prevented from being caused by oil seal aging.
Furthermore, an oil blocking convex rib 7 is arranged between the inner side of the left crank case and the inner side of the right crank case, and between the output shaft holes 6 and the crank shaft holes 5 of the left crank case and the right crank case, and the two oil blocking convex ribs 7 are correspondingly arranged and are tightly attached together after being assembled to form an oil blocking plate; the upper edge of the oil baffle is positioned below the oil drain hole 9, and the oil baffle forms an oil storage tank 8 together with the side walls of the left crankcase body and the right crankcase body. Like this, two keep off oily protruding muscle 7 and correspond to hug closely behind left crankcase and right crankcase assembly to form a oil baffle that strides in the crankcase, with box sealing connection, the oil baffle is located oil drain hole 9 below, thereby can retrieve oil drain hole 9 return oil. Meanwhile, the oil baffle and the side wall of the crankcase form an oil storage pool 8 with the upper end corresponding to the oil drain hole 9 and positioned below the output shaft, lubricating oil can be collected in the oil storage pool 8 after a certain time, when an engine runs, the lubricating oil is brought onto the gear through the rotation of a gear on the output shaft, and when the gear rotates, the lubricating oil is thrown to a transmission shaft main shaft 10 and a transmission shaft auxiliary shaft 11 above the output shaft, so that the output shaft gear drives the oil to splash and lubricate other transmission gears.
Further, the side walls of the inner sides of the left crankcase body and the right crankcase body are respectively provided with a bulge 4 corresponding to the lubricating oil duct 2, and the bulge 4 is positioned right above the lubricating oil duct 2. Therefore, the bulge 4 corresponding to the oil inlet of the lubricating oil duct 2 is arranged on the inner wall of the crankcase body, oil mist can be collected to form lubricating oil after the oil mist is attached to and collected by the bulge 4, and the lubricating oil is dripped into the lubricating oil duct 2, so that the lubricating oil quantity in the lubricating oil duct 2 is further increased.
Further, an arc-shaped oil guiding surface is arranged between the oil guiding convex rib 3 and the lubricating oil duct 2. Like this, lead the arc that sets up between oily protruding muscle 3 and the lubrication duct 2 and lead oily face, can lead oily protruding muscle 3 lower extreme of leading after gathering the oil mist that condenses on the oily protruding muscle 3, lead oily face again through this arc and lead oily face and lead lubricating oil into lubrication duct 2 at last. The arc oil guiding surface is arc-shaped, and has a good oil guiding effect.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the technical solution, and those skilled in the art should understand that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the present utility model, and all such modifications and equivalents are included in the scope of the claims.
Claims (5)
1. The box body lubricating structure of the motorcycle engine crankcase comprises a left crankcase body and a right crankcase body which are fixedly connected, and is characterized in that at least one lubricating oil duct communicated with the balance shaft hole is arranged in the left crankcase body and the right crankcase body and adjacent to the balance shaft hole of the left crankcase body and the right crankcase body, the lubricating oil duct is positioned on the upper side of the balance shaft hole, and the outer end of the lubricating oil duct is sealed by a plug; the oil guide convex ribs are arranged above the balance shaft holes in the left crankcase body and the right crankcase body and beside the lubricating oil passage, and are obliquely arranged, so that oil mist can be collected and guided into the lubricating oil passage.
2. The case lubrication structure of a motorcycle engine crankcase according to claim 1, wherein an oil seal is embedded in shaft holes of the output shaft on the outer sides of the left crankcase and the right crankcase, and oil drain holes corresponding to the oil seal are provided on the inner sides of the left crankcase and the right crankcase.
3. The case lubrication structure of a motorcycle engine crankcase according to claim 2, wherein an oil baffle rib is arranged between the inner sides of the left crankcase and the right crankcase, and between the shaft holes of the output shafts of the left crankcase and the right crankcase and the shaft hole of the crankshaft, and the two oil baffle ribs are correspondingly arranged and are clung together after being assembled to form an oil baffle plate; the upper edge of the oil baffle is positioned below the oil drain hole, and the oil baffle, the left crankcase body and the side wall of the right crankcase body form an oil storage tank together.
4. A case lubricating structure for a crank case of a motorcycle engine according to claim 1, 2 or 3, wherein a projection corresponding to the lubricating oil passage is provided on each of the side walls of the inner sides of the left crank case and the right crank case, said projection being located directly above the lubricating oil passage.
5. The case lubrication structure of a crankcase of a motorcycle engine according to claim 4, wherein an arc-shaped oil guiding surface is provided between the oil guiding bead and the lubrication oil passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322701080.0U CN221236755U (en) | 2023-10-09 | 2023-10-09 | Box lubricating structure of motorcycle engine crankcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322701080.0U CN221236755U (en) | 2023-10-09 | 2023-10-09 | Box lubricating structure of motorcycle engine crankcase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221236755U true CN221236755U (en) | 2024-06-28 |
Family
ID=91594563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322701080.0U Active CN221236755U (en) | 2023-10-09 | 2023-10-09 | Box lubricating structure of motorcycle engine crankcase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221236755U (en) |
-
2023
- 2023-10-09 CN CN202322701080.0U patent/CN221236755U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |