CN203035378U - Left crankcase cover of engine of motorcycle - Google Patents
Left crankcase cover of engine of motorcycle Download PDFInfo
- Publication number
- CN203035378U CN203035378U CN 201220719650 CN201220719650U CN203035378U CN 203035378 U CN203035378 U CN 203035378U CN 201220719650 CN201220719650 CN 201220719650 CN 201220719650 U CN201220719650 U CN 201220719650U CN 203035378 U CN203035378 U CN 203035378U
- Authority
- CN
- China
- Prior art keywords
- hole
- mounting hole
- duplicate gear
- left crankcase
- crankshaft
- 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
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a left crankcase cover of an engine of a motorcycle. The left crankcase cover comprises a cover (1); a crankshaft hole (2) is arranged on the cover (1); dual gear mounting holes (3), dual gear assembly mounting holes (4) and start motor mounting holes (5) are sequentially arranged above the crankshaft hole (2); the crankshaft hole (2) is a three-level stepped hole, and diameters of the crankshaft hole (2) are sequentially 31.5mm, 30mm and 39mm from the inside to the outside of a crankcase body; diameters of the dual gear mounting holes (3) are 14mm; diameters of the dual gear assembly mounting holes (4) are 10mm; and diameters of parts, which are close to the inner side of the crankcase body, of the start motor mounting holes (5) are 30mm. The left crankcase cover has the advantages that parameters such as the diameters and hole center distances of the various holes on the crankcase cover are optimized, so that other components of a crankcase can be adaptively designed with the crankcase, and a crankshaft, dual gears, a dual-gear assembly, a start motor and a stator can be compactly mounted.
Description
Technical field
The utility model relates to a kind of left crankcase lid of motorcycle engine.
Background technique
In the design concept of motor, always wish can be with engine design littler, more compact structure.For left crankcase Gai Eryan, also be that hope can be to its optimal design, so that the motor overall structure is compacter.But in the prior art, the structure of motor left crankcase lid finalizes the design almost, and any improvement rashly to it all will cause the variation of other structures of motor and overall performance.
Therefore those skilled in the art are devoted to develop and a kind ofly can make the compacter motor left crankcase lid of engine structure.
The model utility content
Because the above-mentioned defective of prior art, technical problem to be solved in the utility model provides a kind of compacter motor left crankcase of engine structure that can make and covers.
For achieving the above object, the utility model provides a kind of motorcycle engine left crankcase lid, comprises lid; Described lid is provided with crankshaft hole; The top of described crankshaft hole is disposed with duplicate gear mounting hole, duplicate gear assembly mounting hole and starting electrical machinery mounting hole; Described crankshaft hole is three grades of shoulder holes, in casing to outside, its aperture is followed successively by 31.5,30 and 39mm; The aperture of described duplicate gear mounting hole is 14mm; The aperture of described duplicate gear assembly mounting hole is 10mm; Described starting electrical machinery mounting hole is 30mm by the aperture of box inside.
Preferable, the first hole heart distance of described crankshaft hole and described duplicate gear mounting hole is 73.5-74.5mm; The second hole heart distance of described duplicate gear mounting hole and duplicate gear assembly mounting hole is 33.5-34.5mm; The 3rd hole heart distance of described duplicate gear assembly mounting hole and starting electrical machinery mounting hole is 39.5-40.5mm.
Preferable, the described first hole heart is 74mm apart from L1; The described second hole heart distance is 34mm; Described the 3rd hole heart distance is 40mm.
Preferable, the horizontal equivalent of described crankshaft hole and duplicate gear assembly mounting hole is 65.1-65.3mm.
Preferable, described horizontal equivalent is 65.2mm.
Preferable, the inboard of described lid is provided with the stator installation base at the crankshaft hole place; Described stator installation base is provided with stator screw is installed.
Preferable, the interior edge face distance of the described lid of attachment face distance of described stator installation base is 43.5mm.
The beneficial effects of the utility model are: the utility model is by aperture and the isoparametric optimization of hole heart distance to each hole on the case lid, the miscellaneous part of crankcase is adapted to design with it, can make that the installation of bent axle, duplicate gear, duplicate gear assembly, starting electrical machinery and stator can be compacter.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the rear view of Fig. 1.
Fig. 3 is the A-A sectional view of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As Fig. 1, Fig. 2 and shown in Figure 3, a kind of motorcycle engine left crankcase lid comprises lid 1, and lid 1 is provided with crankshaft hole 2, and the top of crankshaft hole 2 is disposed with duplicate gear mounting hole 3, duplicate gear assembly mounting hole 4 and starting electrical machinery mounting hole 5.
The inboard of lid 1 is provided with stator installation base 6 at crankshaft hole 2 places, and stator installation base 6 is provided with stator screw 7 is installed.The attachment face of stator installation base 6 is 43.5mm apart from the interior edge face distance L 5 of lid 1.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (7)
1. a motorcycle engine left crankcase lid comprises lid (1); Described lid (1) is provided with crankshaft hole (2); The top of described crankshaft hole (2) is disposed with duplicate gear mounting hole (3), duplicate gear assembly mounting hole (4) and starting electrical machinery mounting hole (5); It is characterized in that: described crankshaft hole (2) is three grades of shoulder holes, in casing to outside, its aperture is followed successively by 31.5,30 and 39mm; The aperture of described duplicate gear mounting hole (3) is 14mm; The aperture of described duplicate gear assembly mounting hole (4) is 10mm; Described starting electrical machinery mounting hole (5) is 30mm by the aperture of box inside.
2. motorcycle engine left crankcase as claimed in claim 1 covers, and it is characterized in that: described crankshaft hole (2) is 73.5-74.5mm with the first hole heart of described duplicate gear mounting hole (3) apart from (L1); Described duplicate gear mounting hole (3) is 33.5-34.5mm with the second hole heart of duplicate gear assembly mounting hole (4) apart from (L2); Described duplicate gear assembly mounting hole (4) is 39.5-40.5mm with the 3rd hole heart of starting electrical machinery mounting hole (5) apart from (L3).
3. motorcycle engine left crankcase as claimed in claim 2 covers, and it is characterized in that: the described first hole heart is 74mm apart from (L1); The described second hole heart is 34mm apart from (L2); Described the 3rd hole heart is 40mm apart from (L3).
4. as claim 1 or 2 or 3 described motorcycle engine left crankcase lids, it is characterized in that: described crankshaft hole (2) is 65.1-65.3mm with the horizontal equivalent (L4) of duplicate gear assembly mounting hole (4).
5. motorcycle engine left crankcase as claimed in claim 4 covers, and it is characterized in that: described horizontal equivalent (L4) is 65.2mm.
6. as claim 1 or 2 or 3 described motorcycle engine left crankcase lids, it is characterized in that: stator installation base (6) is located to be provided with at crankshaft hole (2) in the inboard of described lid (1); Described stator installation base (6) is provided with stator screw (7) is installed.
7. motorcycle engine left crankcase as claimed in claim 6 covers, and it is characterized in that: the interior edge face distance (L5) of the attachment face described lid of distance (1) of described stator installation base (6) is 43.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220719650 CN203035378U (en) | 2012-12-24 | 2012-12-24 | Left crankcase cover of engine of motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220719650 CN203035378U (en) | 2012-12-24 | 2012-12-24 | Left crankcase cover of engine of motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035378U true CN203035378U (en) | 2013-07-03 |
Family
ID=48687510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220719650 Expired - Fee Related CN203035378U (en) | 2012-12-24 | 2012-12-24 | Left crankcase cover of engine of motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695571A (en) * | 2019-01-04 | 2019-04-30 | 重庆隆鑫发动机有限公司 | Electric car travel increasing device |
-
2012
- 2012-12-24 CN CN 201220719650 patent/CN203035378U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695571A (en) * | 2019-01-04 | 2019-04-30 | 重庆隆鑫发动机有限公司 | Electric car travel increasing device |
| CN109695571B (en) * | 2019-01-04 | 2021-06-15 | 重庆隆鑫发动机有限公司 | Range extender of electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |