CN203335264U - Motorcycle engine left crank case outer body - Google Patents
Motorcycle engine left crank case outer body Download PDFInfo
- Publication number
- CN203335264U CN203335264U CN2013203775915U CN201320377591U CN203335264U CN 203335264 U CN203335264 U CN 203335264U CN 2013203775915 U CN2013203775915 U CN 2013203775915U CN 201320377591 U CN201320377591 U CN 201320377591U CN 203335264 U CN203335264 U CN 203335264U
- Authority
- CN
- China
- Prior art keywords
- hole
- cover body
- left crankcase
- electrical machinery
- cover
- 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 - Lifetime
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- Motor Or Generator Frames (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a motorcycle engine left crank case outer body which is of a cover body structure with side walls in the circumferential direction. A crank hole (1) is formed in the middle of a cover body, and generator installation holes (2) are formed in the outer side of the cover body and surround the crank hole (1); a starting motor hole (3) is formed in the left side of the crank hole (1), starting motor installation holes (4) are formed in the inner side of the cover body and surround the starting motor hole (3), and left crank case cover installation holes (5) are formed in the outer side of the cover body and surround the starting motor hole (3); left crank case installation holes (6) are formed in the periphery of the cover body and surround the crank hole (1), and a ventilation cooling cavity (8) is formed in the outer side of the cover body. The motorcycle engine left crank case outer body is used for being installed between a left crank case body and a left crank case cover, and installation requirements of a high-power rotor generator can be met; not only can heat of the generator be blocked from dissipating into a crank case, but also oil in the crank case can be blocked from entering sealed space to affect normal operation of the generator.
Description
Technical field
The utility model relates to the component in engine crankcase, is specifically related to a kind of left crankcase ectosome be arranged between left crankcase and left crankcase cover.
Background technique
The conventional engines crankcase body is comprised of left crankcase, left crankcase cover, right crankcase and right crankcase cover etc.Left crankcase cover is arranged on the left crankcase outside, with left crankcase, directly is connected.Usually, starting electrical machinery is arranged on left crankcase, and generator is arranged in left crankcase cover.For high-power outer rotor generator is installed, need to increase the size of crankcase body; Simultaneously, increase generator power, will inevitably make the temperature in crankcase body raise, in existing structure, left crankcase directly is connected with left crankcase cover, the space in generator and crankcase is not separated, and in crankcase body, ventilation cooling structure is not set, can't meet the installation requirement of high-power generator.
The model utility content
The utility model aims to provide a kind of motorcycle engine left crankcase ectosome, for being arranged between left crankcase and left crankcase cover, can meet the installation requirement of high-power rotor generator, simultaneously for starting electrical machinery is installed.
For this reason, the technological scheme that the utility model adopts is: a kind of engine left crankcase cover, for circumferentially, with the cover body structure of sidewall, described cover body middle part is provided with crank hole (1), in the cover body outside, around described crank hole (1), is provided with generator mounting hole (2); The left side of described crank hole (1) is provided with starting electrical machinery hole (3), be provided with starting electrical machinery mounting hole (4) in the cover body inboard around described starting electrical machinery hole (3), in the cover body outside, around described starting electrical machinery hole (3), be provided with left crankcase cover mounting hole (5); Be provided with left crankcase mounting hole (6) in the cover body outside around described crank hole (1), described cover body arranged outside has ventilation cooling chamber (8).
The sidewall part of described cover body bottom extends to form installation base (7) downwards, and is provided with engine suspension bolt hole (7a) on installation base (7).Increase engine suspension structure, the reliability of installing to improve motor.
Be preferably, totally four of described generator mounting holes (2), be circumference uniform distribution round crank hole (1); Totally two of described starting electrical machinery mounting holes (4), be arranged on the both sides up and down in starting electrical machinery hole (3); Described left crankcase cover mounting hole (5) is also two, is arranged on the both sides up and down in starting electrical machinery hole (3); Totally two of described installation bases (7), be arranged on the cover body bottom in parallel to each other.Mounting hole and the installation base of suitable quantity are set, can guarantee on the one hand the reliability of installing, be conducive on the other hand reduce manufacture cost, simplify and install.
Be provided with and be the rib (9) that emitting shape distributes around described crank hole (1) in described cover body medial and lateral, to improve the intensity of whole cover body.
During installation, the left crankcase ectosome is between left crankcase and left crankcase cover, the rotor of high-power generator is arranged on crank, the stator of generator is installed to the outside (just between left crankcase ectosome and left crankcase cover) of left crankcase ectosome by the generator mounting hole, left crankcase ectosome and left crankcase cover form the space of a sealing.Left crankcase covers correspondence and is provided with ventilation cooling chamber, intake grill, exhaust outlet, thus be generator heat-radiation.After left crankcase ectosome and left crankcase cover fasten and are installed together, an individual cavity of left crankcase ectosome and left crankcase cover formation.
The beneficial effects of the utility model: the heat that high-power generator produces can dispel the heat by the air-out passage that is arranged on the left crankcase tops, thereby has realized the purpose to the crankcase body cooling; Simultaneously, the left crankcase ectosome plays the effect of oil sealing to crankcase body, and the oil of having blocked in crankcase body arrives generator.Have simple in structure, design the characteristics such as ingenious, low cost of manufacture, be specially adapted to the installation of high-power generator, avoid the heat of generator to enter in crankcase, thereby affect reliability and the durability of engine operation.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model (from the side near left crankcase cover).
The rear view that Fig. 2 is Fig. 1.
The A-A sectional view that Fig. 3 is Fig. 2.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
In conjunction with Fig. 1---the motorcycle engine left crankcase ectosome shown in Fig. 3, for the circumferential cover body structure with sidewall, through casting integrated moulding, for being arranged on the newly-increased part between engine left crankcase body and left crankcase cover.
Figure 1 shows that the outside (from the side near left crankcase cover) of left crankcase ectosome, Figure 2 shows that the inboard (from the side near left crankcase) of left crankcase ectosome.The cover body middle part is provided with crank hole 1, in the cover body outside, around crank hole 1, is provided with generator mounting hole 2, and generator mounting hole 2 is for installing the stator of generator, and the rotor of generator is arranged on crank.The left side of crank hole 1 is provided with starting electrical machinery hole 3, in the cover body inboard, around starting electrical machinery hole 3, is provided with starting electrical machinery mounting hole 4, in the cover body outside, around starting electrical machinery hole 3, is provided with left crankcase cover mounting hole 5.Be provided with a plurality of left crankcase mounting holes 6 at cover body outside flexing delthyrium 1.
The cover body arranged outside has ventilation cooling chamber 8, and left crankcase covers correspondence and is provided with ventilation cooling chamber, intake grill, exhaust outlet, thus be generator heat-radiation.After left crankcase ectosome and left crankcase cover fasten and are installed together, an individual cavity of left crankcase ectosome and left crankcase cover formation.The left crankcase ectosome plays the effect of barrier, both can block the dissipation of heat of generator in crankcase, and the oil that can block again in crankcase enters the normal operation that affects generator in seal space.
The sidewall part of cover body bottom extends to form installation base 7 downwards, and is provided with engine suspension bolt hole 7a on installation base 7.Increase engine suspension structure, the reliability of installing to improve motor.
Be preferably, totally four of generator mounting holes 2, be circumference uniform distribution round crank hole 1; Totally two of starting electrical machinery mounting holes 4, be arranged on the both sides up and down in starting electrical machinery hole 3; Left crankcase cover mounting hole 5 is also two, is arranged on the both sides up and down in starting electrical machinery hole 3; Totally two of installation bases 7, be arranged on the cover body bottom in parallel to each other.The quantity of mounting hole and installation base is not limit, and arranges as required.
Be provided with and be the rib 9 that emitting shape distributes around crank hole 1 in the cover body medial and lateral, to improve the intensity of whole cover body.
Claims (4)
1. a motorcycle engine left crankcase ectosome, is characterized in that: with the cover body structure of sidewall, be provided with crank hole (1) for circumferentially in the middle part of described cover body, in the cover body outside, around described crank hole (1), be provided with generator mounting hole (2); The left side of described crank hole (1) is provided with starting electrical machinery hole (3), be provided with starting electrical machinery mounting hole (4) in the cover body inboard around described starting electrical machinery hole (3), in the cover body outside, around described starting electrical machinery hole (3), be provided with left crankcase cover mounting hole (5); Be provided with left crankcase mounting hole (6) in the cover body outside around described crank hole (1), described cover body arranged outside has ventilation cooling chamber (8).
2. according to motorcycle engine left crankcase ectosome claimed in claim 1, it is characterized in that: the sidewall part of described cover body bottom extends to form installation base (7) downwards, and is provided with engine suspension bolt hole (7a) on installation base (7).
3. according to the described motorcycle engine left crankcase of claim 1 or 2 ectosome, it is characterized in that: totally four of described generator mounting holes (2) are circumference uniform distribution round crank hole (1); Totally two of described starting electrical machinery mounting holes (4), be arranged on the both sides up and down in starting electrical machinery hole (3); Described left crankcase cover mounting hole (5) is also two, is arranged on the both sides up and down in starting electrical machinery hole (3); Totally two of described installation bases (7), be arranged on the cover body bottom in parallel to each other.
4. according to the described motorcycle engine left crankcase of claim 1 or 2 ectosome, it is characterized in that: in described cover body medial and lateral, around described crank hole (1), be provided with and be the rib (9) that emitting shape distributes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203775915U CN203335264U (en) | 2013-06-28 | 2013-06-28 | Motorcycle engine left crank case outer body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203775915U CN203335264U (en) | 2013-06-28 | 2013-06-28 | Motorcycle engine left crank case outer body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335264U true CN203335264U (en) | 2013-12-11 |
Family
ID=49703941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203775915U Expired - Lifetime CN203335264U (en) | 2013-06-28 | 2013-06-28 | Motorcycle engine left crank case outer body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335264U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306844A (en) * | 2013-06-28 | 2013-09-18 | 力帆实业(集团)股份有限公司 | Outer body engine left crank case |
| CN104141538A (en) * | 2014-07-25 | 2014-11-12 | 朱德仲 | Motorcycle engine end cover |
| CN104806848A (en) * | 2014-06-24 | 2015-07-29 | 蒋旭东 | End cover of engine shell |
| CN112739615A (en) * | 2018-09-25 | 2021-04-30 | 本田技研工业株式会社 | Power unit for saddle-ride type vehicle |
-
2013
- 2013-06-28 CN CN2013203775915U patent/CN203335264U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306844A (en) * | 2013-06-28 | 2013-09-18 | 力帆实业(集团)股份有限公司 | Outer body engine left crank case |
| CN103306844B (en) * | 2013-06-28 | 2015-09-02 | 力帆实业(集团)股份有限公司 | Outer body engine left crank case |
| CN104806848A (en) * | 2014-06-24 | 2015-07-29 | 蒋旭东 | End cover of engine shell |
| CN104141538A (en) * | 2014-07-25 | 2014-11-12 | 朱德仲 | Motorcycle engine end cover |
| CN112739615A (en) * | 2018-09-25 | 2021-04-30 | 本田技研工业株式会社 | Power unit for saddle-ride type vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |