CN201610795U - Motorcycle engine right crank axle box - Google Patents
Motorcycle engine right crank axle box Download PDFInfo
- Publication number
- CN201610795U CN201610795U CN2010201342836U CN201020134283U CN201610795U CN 201610795 U CN201610795 U CN 201610795U CN 2010201342836 U CN2010201342836 U CN 2010201342836U CN 201020134283 U CN201020134283 U CN 201020134283U CN 201610795 U CN201610795 U CN 201610795U
- Authority
- CN
- China
- Prior art keywords
- oil
- oil duct
- crank axle
- storage tank
- motorcycle engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
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- Lubrication Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a motorcycle engine right crank axle box, wherein an oil channel (1) is provided on the inner wall of right crank axle, one end of the oil channel (1) is communicated to the box oil storage tank (3), mounting screw holes (4) are distributed on the binding surface of the right crank axle box and the left crank axle box, wherein a mounting screw hole (4) is adjacent to the connecting part of the oil channel (1) and the box oil storage tank (3), which is characterized in that: a groove (5) is concaved down at the inner wall between the mounting screw hole (4) and the oil channel (1). During the die-casting, the utility model is recessed downward the mounting screw hole and the oil channel adjacent to the connecting part of the oil channel and the box oil storage tank, the wall thickness is reduced at this part, 'air sacs' and 'sinkholes' will not formed at this part after die-casting, to avoid oil leakage of crank axle box outward.
Description
Technical field
The utility model belongs to a kind of crankcase body, specifically, is a kind of right crankshaft box of motorcycle engine.
Background technique
The left side of motorcycle, right crankcase is all by die cast, now in the right crankcase, as Fig. 3, shown in 4, inwall is provided with oil duct 1, described oil duct 1 one ends are communicated with oil pump filler opening 2, this oil duct 1 the other end is communicated with casing oil storage tank 2, be distributed with on the junction plane of described right crankcase and left crankcase screw 4 is installed, one of them installs screw 4 near the joint of oil duct 1 with casing oil storage tank 2, sidewall between this installation screw 4 and the oil duct 1 is promptly installed and is produced a large amount of " pore " " shrinkage cavities " in the sidewall between screw 4 and the oil duct 1 because " thermal center circle " can appear in die casting all the time.The oil of oil duct 1 the inside can pass through these " pore " " shrinkage cavities " and infiltrate, and installs in the screw 4 with the joint of casing oil storage tank 2 near oil duct 1 and oozes out crankcase, forms oil leakage phenomenon.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of not outside right crankshaft box of motorcycle engine of oil impregnate.
The technical solution of the utility model is as follows: a kind of right crankshaft box of motorcycle engine, the right crankcase inwall is provided with oil duct, described oil duct one end is communicated with the oil pump filler opening, this oil duct the other end is communicated with the casing oil storage tank, be distributed with the installation screw on the junction plane of described right crankcase and left crankcase, one of them installs the joint of screw near oil duct and casing oil storage tank, it is characterized in that: the recessed downwards groove that forms in the inwall place between described installation screw and the oil duct.Joint near oil duct and casing oil storage tank has one screw is installed, and this installs the sidewall thickness attenuate between screw and the oil duct.Die castings is the closer to outer surface, and inside is fine and close more, just can not form " pore " " shrinkage cavity ", and handling the back so just can be to the screw oil impregnate is installed.
The pit that above-mentioned groove is downward and the die casting of right crankcase inwall forms connects.
As optimal design, above-mentioned groove is 5～6mm deeply.
Beneficial effect: the utility model is when die casting, recessed downwards between the installation screw of the joint of close oil duct and casing oil storage tank and the oil duct, make can not form " pore " " shrinkage cavity " behind the die cast herein by wall thickness reduction herein, avoided the outside leakage of oil of crankcase body.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the structural representation before improving;
Fig. 4 is the B-B sectional view of Fig. 3.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1 and Figure 2, a kind of right crankshaft box of motorcycle engine of the utility model, the right crankcase inwall is provided with oil duct 1, described oil duct 1 one ends are communicated with oil pump filler opening 2, this oil duct 1 the other end is communicated with casing oil storage tank 3, be distributed with on the junction plane of described right crankcase and left crankcase screw 4 is installed, one of them installs screw 4 near the joint of oil duct 1 with casing oil storage tank 3, the recessed downwards groove 5 that forms in the inwall place between described installation screw 4 and the oil duct 1.Described groove 5 is 5～6mm deeply.Described groove 5 pits 6 downward and that the die casting of right crankcase inwall forms connect.
Claims (3)
1. right crankshaft box of motorcycle engine, the right crankcase inwall is provided with oil duct (1), described oil duct (1) one end is communicated with oil pump filler opening (2), this oil duct (1) the other end is communicated with casing oil storage tank (3), be distributed with on the junction plane of described right crankcase and left crankcase screw (4) is installed, one of them installs screw (4) near the joint of oil duct (1) with casing oil storage tank (3), it is characterized in that: the recessed downwards groove (5) that forms in the inwall place between described installation screw (4) and the oil duct (1).
2. according to the described right crankshaft box of motorcycle engine of claim 1, it is characterized in that: the pit (6) that described groove (5) is downward and the die casting of right crankcase inwall forms connects.
3. according to claim 1 or 2 described right crankshaft box of motorcycle engine, it is characterized in that: described groove (5) is 5～6mm deeply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201342836U CN201610795U (en) | 2010-03-18 | 2010-03-18 | Motorcycle engine right crank axle box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201342836U CN201610795U (en) | 2010-03-18 | 2010-03-18 | Motorcycle engine right crank axle box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201610795U true CN201610795U (en) | 2010-10-20 |
Family
ID=42961427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201342836U Expired - Fee Related CN201610795U (en) | 2010-03-18 | 2010-03-18 | Motorcycle engine right crank axle box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201610795U (en) |
-
2010
- 2010-03-18 CN CN2010201342836U patent/CN201610795U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING YONGFA TECHNOLOGY CO., LTD. Free format text: FORMER NAME: CHONGQING YONGFA MOTORCYCLE ACCESSORIES CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 400700 71 bridge, Beibei District, Chongqing Patentee after: Chongqing Yongfa Technology Co. Ltd. Address before: 400700 71 bridge, Beibei District, Chongqing Patentee before: Chongqing Yongfa Motorcycle Parts Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 Termination date: 20150318 |
|
| EXPY | Termination of patent right or utility model |