CN202381192U - Sealing structure for cylinder body of engine of motorcycle - Google Patents
Sealing structure for cylinder body of engine of motorcycle Download PDFInfo
- Publication number
- CN202381192U CN202381192U CN2011204847767U CN201120484776U CN202381192U CN 202381192 U CN202381192 U CN 202381192U CN 2011204847767 U CN2011204847767 U CN 2011204847767U CN 201120484776 U CN201120484776 U CN 201120484776U CN 202381192 U CN202381192 U CN 202381192U
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- Prior art keywords
- cylinder body
- sealing
- cylinder
- counterbore
- motorcycle
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- Expired - Fee Related
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Abstract
The utility model discloses a sealing structure for a cylinder body of an engine of a motorcycle. The sealing structure is characterized by comprising counter bores formed at two ends of each of bolt via holes which are formed on the cylinder body and are used as oil ducts, and a second counter bore which is positioned at a step of a guiding section on the cylinder body. According to the utility model, after the counter bores are formed at two ends of each of the bolt via holes serving as the oil ducts during installation, sealing rings can be arranged in the counter bores, and then asbestos gaskets are arranged for sealing, so the sealing reliability is greatly improved. Similarly, after the second counter bore is formed at the step of the guiding section on the cylinder body, a sealing ring can be arranged in the counter bore first, and then an asbestos gasket is arranged, so the sealing reliability is greatly improved. The problem that oil easily seeps between the cylinder body and a cylinder head, and between the cylinder body and a crankcase can be effectively solved.
Description
Technical field
The utility model relates to a kind of motorcycle engine, especially a kind of motorcycle engine cylinder block.
Background technique
Motorcycle engine water-cooled cylinder body generally comprises and is positioned at outside cylinder body and is positioned at inner cylinder liner socket formation, connects cylinder head on it, connects crankcase down, links together through four stay bolts.Cylinder liner is longer than cylinder body, and guide portion inserts in the crankcase, is the passage of piston motion, requires wear-resisting.There are four stay bolt via holes to be used for installing the stay bolt that connects cylinder head and crankcase on the cylinder body, one of them double oil duct of doing, lubricant oil is up from the gap of via hole and stay bolt, removes the component in the lubricated cylinder head.The material of cylinder body is a pack alloy, and the material of cylinder liner is wear-resisting high duty alloy cast iron, processes the cylinder liner semifinished product during manufacturing earlier, puts into mould then and cylinder body is cast in together, and then the processing cylinder-bore.The main back cushion sheet of sealing between cylinder block and cylinder head and the crankcase realizes that no special oil seal structure oil impregnate occurs easily between cylinder block and cylinder head and crankcase.So this cylinder block exists quality heavy, and is unfavorable to power and the environmental protection of car load, and structural manufacturing process is complicated, cost height, defective such as efficient is low.
The model utility content
To the deficiency of above-mentioned existing technology, the primary technical problem that solves of the utility model is how to provide between a kind of cylinder block and cylinder head and the crankcase the better motorcycle engine cylinder block of the sealing effect of lubricant oil sealing configuration; The utility model also provides a kind of motorcycle engine cylinder block that includes above-mentioned position structure simultaneously, and it is good that it has intensity, in light weight and structural manufacturing process characteristic of simple.
In order to solve the problems of the technologies described above, adopted following technological scheme in the utility model.
A kind of motorcycle engine cylinder block sealing configuration, its characteristics are that said sealing configuration comprises the double counterbore of doing the bolt via hole two ends of oil duct that is arranged on the cylinder body, also comprise second counterbore at the step place that is positioned at guide section on the cylinder body.
Before the utility model improved, said two place's sealing stations all were directly at end face asbestos washer to be set to seal, and sealing effect is relatively poor.In the utility model; After said when mounted double two ends of doing the bolt via hole of oil duct are provided with counterbore; Seal ring (note leaving between seal ring and the bolt gap supply lubricant oil through) back can be installed in counterbore seal, so improved sealing reliability greatly at the installation asbestos washer.In like manner, after the step place of guide section on the said cylinder body is provided with second counterbore, also can in counterbore, behind the installation seal ring asbestos washer be installed earlier again, improve sealing reliability.Can effectively solve the problem that occurs oil impregnate between cylinder body and cylinder head and the crankcase easily.
Description of drawings
Fig. 1 is a kind of sectional view that has adopted the motorcycle engine cylinder block of the utility model structure.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the K-K place sectional drawing of Fig. 1, shows stiffening rib place cross-section structure.
Embodiment
Below in conjunction with accompanying drawing and a kind of motorcycle engine cylinder block of the utility model structure that adopted this sealing configuration is done further to specify.
During practical implementation; Shown in Fig. 1 to 3, a kind of motorcycle engine cylinder block comprises columnar cylinder body 1; Cylinder body 1 top ring has a cooling water sandwich 2 around outer installment; Cylinder body 1 lower end has the guide section 3 that is used to insert crankcase that an external diameter reduces, and cylinder body 1 outside forward is distributed with four bolt via holes 4, the double oil duct of doing of one of them bolt via hole; Said cylinder body 1 adopts the moulding of aluminum alloy integral die-cast, and said cylinder body 1 inwall is electroplated and is provided with one deck wearing layer 5.Also comprise the guide plate mounting structure; Said guide plate mounting structure; The guide plate installation room 6 that is the upward opening flute profile that comprises the outside that is positioned at cylinder body 1 upper end cooling water sandwich 2, suitable opening direction is provided with the locating slot 7 of bar shaped on said guide plate installation room 6 inwalls.Also comprise position structure, said position structure comprises three positioning boss 8 that are raised in the cylinder body outside, and said three positioning boss 8 evenly distribute around cylinder body 1.Include sealing configuration, said sealing configuration comprises and is arranged at the double counterbore 9 of doing the bolt via hole two ends of oil duct, also comprises second counterbore 10 at the step place that is positioned at guide section 3 on the cylinder body 1.The appearance at the position on the cylinder body 1 between said cooling water sandwich 2 and said guide section 3 also forward is provided with several stiffening ribs 11 to outer lug.Be positioned at cooling water sandwich 2 lower end positions on the said cylinder body 1 and also be provided with the screw that discharges water, said screw one end that discharges water is communicated with cooling water sandwich 2, the other end and cylinder body 1 external communications.Said cylinder body 1 inwall lower end is provided with the oblique angle 12 of a circle 15-25 degree, can make things convenient for the assembling of piston.
In the above-mentioned motorcycle engine block structure, cylinder body adopts aluminum alloy one die cast, has changed behind two members of former employing at die casting production method together, makes its technology simpler, and total quality is lighter simultaneously.In addition, electroplate one deck wearing layer, improve the scurf resistance of cylinder body inwall, it can be accomplished and the cooperating of piston well at the cylinder body inwall.So just, reduced technology difficulty, and then improved manufacturing efficiency indirectly guaranteeing to have reduced product weight under the still enough prerequisites of cylinder inner wall scurf resistance.Wherein said plating is ripe existing technology, and said antifriction layer can be that high-abrasive materials such as pottery or cemented carbide obtain, not at this detailed description.Simultaneously, in the guide plate installation room, set up the mechanism of locating slot, can realize the correct location of chain slide, made the installation of chain slide more reliable and more stable, guaranteed its guide function.Wherein, can also lean on said three the outside positioning boss of cylinder body that are raised in to play the effect of processing location, make the location more reliable, make processing convenient; Positioning boss can also be that extracting tool provides force bearing point when the dismounting cylinder block simultaneously, makes things convenient for the loading and unloading of cylinder block.Wherein, After said when mounted double two ends of doing the bolt via hole of oil duct are provided with counterbore; Seal ring (note leaving between seal ring and the bolt gap supply lubricant oil through) back can be installed in counterbore seal, so improved sealing reliability greatly at the installation asbestos washer.In like manner, after the step place of guide section on the said cylinder body is provided with second counterbore, also can in counterbore, behind the installation seal ring asbestos washer be installed earlier again, improve sealing reliability.Can effectively solve the problem that occurs oil impregnate between cylinder body and cylinder head and the crankcase easily.Wherein, owing to belong to the wall thickness thin location between cooling water sandwich and the said guide section,, can not cause the monnolithic case size of cylinder block to increase simultaneously so after setting up stiffening rib herein, can further increase the cylinder body integral intensity.Wherein, for being obliquely installed, the said screw that discharges water was arranged at the position of inclination below, cylinder body position when cylinder body was installed.When not discharging water, adopt copper packing and the bolt screw lock sealing that will discharge water, when needs discharge water, just open bolt and discharge water.Has the more convenient effect that discharges water.
In sum, said cylinder block, it is good to have intensity, in light weight and structural manufacturing process is simple, the advantage that processing cost is low; Cylinder block is an all aluminium alloy, and material is a pack alloy, and more about 30% than general cylinder block light weight, the lightweight of cylinder block is improved to the power and the energy-conserving and environment-protective performance of motor.Said block structure and processing technology are simple simultaneously, and cost is low, and manufacturing efficiency is high, are particularly suitable for producing in enormous quantities.
Claims (1)
1. a motorcycle engine cylinder block sealing configuration is characterized in that, said sealing configuration comprises the double counterbore of doing the bolt via hole two ends of oil duct that is arranged on the cylinder body, also comprises second counterbore at the step place that is positioned at guide section on the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204847767U CN202381192U (en) | 2011-11-29 | 2011-11-29 | Sealing structure for cylinder body of engine of motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204847767U CN202381192U (en) | 2011-11-29 | 2011-11-29 | Sealing structure for cylinder body of engine of motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381192U true CN202381192U (en) | 2012-08-15 |
Family
ID=46629704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204847767U Expired - Fee Related CN202381192U (en) | 2011-11-29 | 2011-11-29 | Sealing structure for cylinder body of engine of motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381192U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611235A (en) * | 2019-01-17 | 2019-04-12 | 上海汽车集团股份有限公司 | Engine rear end sealing device |
-
2011
- 2011-11-29 CN CN2011204847767U patent/CN202381192U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611235A (en) * | 2019-01-17 | 2019-04-12 | 上海汽车集团股份有限公司 | Engine rear end sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151112 Address after: 400054 Banan District, Chongqing building Avenue, No. 2, building 1 Patentee after: CHONGQING CONSTRUCTION ELECTROMECHANICAL CO., LTD. Address before: 400054 Huaxi Industrial Park, Banan District, Chongqing Road, No. 1 Patentee before: Chongqing Jianshe Motorcycle Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20161129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |