CN103306844A - Outer body engine left crank case - Google Patents
Outer body engine left crank case Download PDFInfo
- Publication number
- CN103306844A CN103306844A CN2013102642126A CN201310264212A CN103306844A CN 103306844 A CN103306844 A CN 103306844A CN 2013102642126 A CN2013102642126 A CN 2013102642126A CN 201310264212 A CN201310264212 A CN 201310264212A CN 103306844 A CN103306844 A CN 103306844A
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- CN
- China
- Prior art keywords
- hole
- cover body
- left crankcase
- electrical machinery
- starting electrical
- 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.)
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- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses an engine left crank case outer body which adopts a cover body structure with side walls in the circumferential direction, wherein a crank shaft hole (1) is formed in the middle of a cover body, and generator mounting holes (2)are formed in the outer side of the cover body in a manner of surrounding the crank shaft hole (1); a starting motor hole (3) is formed in the left side of the crank shaft hole (1), starting motor mounting holes (4) are formed in the inner side of the cover body in a manner of surrounding the starting motor hole (3), and a left crankcase cover mounting hole (5) is formed in the outer side of the cover body in a manner of surrounding the starting motor hole (3); left crank case mounting holes (6) are formed in the circumference of the cover body in a manner of surrounding the crank shaft hole (1), and a ventilating and cooling cavity (8) is arranged on the outer side of the cover body. The engine left crank case outer body is used for being mounted between a left crank case body and a left crankcase cover, can meet the mounting requirements of a high-power rotor generator, not only prevents heat of the generator from emitting to the crank case, but also prevents oil from entering into a sealed space, and the normal work of the generator is not impacted.
Description
Technical field
The present invention relates to the component in the engine crankcase, be specifically related to a kind of left crankcase ectosome that is installed between left crankcase and the left crankcase lid.
Background technique
The conventional engines crankcase body is made up of left crankcase, left crankcase lid, right crankcase and right crankcase cover etc.The left crankcase lid is arranged on the left crankcase outside, directly links to each other with left crankcase.Usually, starting electrical machinery is installed on the left crankcase, and generator is installed in the left crankcase lid.For high-power outer rotor generator is installed, need to increase the size of crankcase body; Simultaneously, increase generator power, temperature in the crankcase body is raise, in the existing structure, left crankcase directly is connected with the left crankcase lid, the space in generator and the crankcase is not separated, and in the crankcase body ventilation cooling structure is not set, can't satisfy the installation requirement of high-power generator.
Summary of the invention
The present invention aims to provide a kind of motor left crankcase ectosome, is used for being installed between left crankcase and the left crankcase lid, can satisfy the installation requirement of high-power rotor generator, is used for installing starting electrical machinery simultaneously.
For this reason, the technical solution adopted in the present invention is: a kind of motor left crankcase lid, for circumferentially having the cover body structure of sidewall, described cover body middle part is provided with crank hole (1), is provided with generator mounting hole (2) in the cover body outside around described crank hole (1); 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 inboard described starting electrical machinery hole (3) that centers on of cover body, be provided with left crankcase lid mounting hole (5) in the cover body outside around described starting electrical machinery hole (3); 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 installation base (7) is provided with engine suspension bolt hole (7a).Increase engine suspension structure, to improve the reliability that motor is installed.
Be preferably, 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) are arranged on the both sides up and down in starting electrical machinery hole (3); Described left crankcase lid mounting hole (5) is two also, is arranged on the both sides up and down in starting electrical machinery hole (3); Totally two of described installation bases (7) are arranged on the cover body bottom in parallel to each other.Mounting hole and the installation base of suitable quantity are set, can guarantee the reliability of installation on the one hand, be conducive to reduce manufacture cost on the other hand, simplify and install.
Be provided with the rib (9) that is the emitting shape distribution in described cover body medial and lateral around described crank hole (1), to improve the intensity of whole cover body.
During installation, the left crankcase ectosome is between left crankcase and left crankcase lid, the rotor of high-power generator is installed on the crank, the stator of generator is installed to the outside (just between left crankcase ectosome and left crankcase lid) of left crankcase ectosome, sealed space of left crankcase ectosome and left crankcase lid formation by the generator mounting hole.Left crankcase covers correspondence and is provided with ventilation cooling chamber, intake grill, exhaust outlet, thus be the generator heat radiation.When left crankcase ectosome and left crankcase lid fasten be installed together after, individual cavity of left crankcase ectosome and left crankcase lid formation.
Beneficial effect of the present invention: 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 the crankcase body arrives generator.Have simple in structure, characteristics such as design is ingenious, low cost of manufacture, be specially adapted to the installation of high-power generator, avoid the heat of generator to enter in the crankcase, thereby influence reliability and the durability of engine operation.
Description of drawings
Fig. 1 is structural representation of the present invention (from the side near the left crankcase lid).
Fig. 2 is the rear view of Fig. 1.
Fig. 3 is the A-A sectional view of Fig. 2.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
In conjunction with Fig. 1---motor left crankcase ectosome shown in Figure 3, for circumferentially having the cover body structure of sidewall, through casting integrated moulding, for being arranged on the newly-increased part between motor left crankcase and the left crankcase lid.
Figure 1 shows that the outside (namely from the side near the left crankcase lid) of left crankcase ectosome, Figure 2 shows that the inboard (namely from the side near left crankcase) of left crankcase ectosome.The cover body middle part is provided with crank hole 1, is provided with generator mounting hole 2 in the cover body outside around crank hole 1, and generator mounting hole 2 is used for installing the stator of generator, and the rotor of generator is installed on the crank.The left side of crank hole 1 is provided with starting electrical machinery hole 3, is provided with starting electrical machinery mounting hole 4 in the inboard starting electrical machinery hole 3 that centers on of cover body, is provided with left crankcase lid mounting hole 5 around starting electrical machinery hole 3 in the cover body outside.Be provided with a plurality of left crankcase mounting holes 6 in the cover body outside around crank hole 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 the generator heat radiation.When left crankcase ectosome and left crankcase lid fasten be installed together after, individual cavity of left crankcase ectosome and left crankcase lid formation.The left crankcase ectosome plays the effect of barrier, and the heat that both can block generator is dispersed in the crankcase, and the oil that can block again in the crankcase enters the proper functioning that influences generator in the seal space.
The sidewall part of cover body bottom extends to form installation base 7 downwards, and installation base 7 is provided with engine suspension bolt hole 7a.Increase engine suspension structure, to improve the reliability that motor is installed.
Be preferably, totally four of generator mounting holes 2 are circumference uniform distribution round crank hole 1; Totally two of starting electrical machinery mounting holes 4 are arranged on the both sides up and down in starting electrical machinery hole 3; Left crankcase lid mounting hole 5 is two also, is arranged on the both sides up and down in starting electrical machinery hole 3; Totally two of installation bases 7 are 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 the rib 9 that is the emitting shape distribution in the cover body medial and lateral around crank hole 1, to improve the intensity of whole cover body.
Claims (4)
1. a motor left crankcase ectosome is characterized in that: for circumferentially having the cover body structure of sidewall, be provided with crank hole (1) in the middle part of the described cover body, be provided with generator mounting hole (2) in the cover body outside around described crank hole (1); 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 inboard described starting electrical machinery hole (3) that centers on of cover body, be provided with left crankcase lid mounting hole (5) in the cover body outside around described starting electrical machinery hole (3); 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 the described motor left crankcase of claim 1 ectosome, it is characterized in that: the sidewall part of described cover body bottom extends to form installation base (7) downwards, and installation base (7) is provided with engine suspension bolt hole (7a).
3. according to claim 1 or 2 described motor left crankcase ectosomes, 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) are arranged on the both sides up and down in starting electrical machinery hole (3); Described left crankcase lid mounting hole (5) is two also, is arranged on the both sides up and down in starting electrical machinery hole (3); Totally two of described installation bases (7) are arranged on the cover body bottom in parallel to each other.
4. according to claim 1 or 2 described motor left crankcase ectosomes, it is characterized in that: be provided with the rib (9) that is the emitting shape distribution in described cover body medial and lateral around described crank hole (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310264212.6A CN103306844B (en) | 2013-06-28 | 2013-06-28 | Outer body engine left crank case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310264212.6A CN103306844B (en) | 2013-06-28 | 2013-06-28 | Outer body engine left crank case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103306844A true CN103306844A (en) | 2013-09-18 |
| CN103306844B CN103306844B (en) | 2015-09-02 |
Family
ID=49132467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310264212.6A Active CN103306844B (en) | 2013-06-28 | 2013-06-28 | Outer body engine left crank case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103306844B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6332444B1 (en) * | 1999-09-03 | 2001-12-25 | Honda Giken Kogyo Kabushiki Kaisha | Lubricating device for internal combustion engine |
| CN102121430A (en) * | 2011-03-31 | 2011-07-13 | 力帆实业(集团)股份有限公司 | Left crankcase body of motorcycle engine |
| CN102797586A (en) * | 2012-08-28 | 2012-11-28 | 力帆实业(集团)股份有限公司 | Left crankcase body of horizontal balance-shaft engine |
| CN203335264U (en) * | 2013-06-28 | 2013-12-11 | 力帆实业(集团)股份有限公司 | Motorcycle engine left crank case outer body |
-
2013
- 2013-06-28 CN CN201310264212.6A patent/CN103306844B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6332444B1 (en) * | 1999-09-03 | 2001-12-25 | Honda Giken Kogyo Kabushiki Kaisha | Lubricating device for internal combustion engine |
| CN102121430A (en) * | 2011-03-31 | 2011-07-13 | 力帆实业(集团)股份有限公司 | Left crankcase body of motorcycle engine |
| CN102797586A (en) * | 2012-08-28 | 2012-11-28 | 力帆实业(集团)股份有限公司 | Left crankcase body of horizontal balance-shaft engine |
| CN203335264U (en) * | 2013-06-28 | 2013-12-11 | 力帆实业(集团)股份有限公司 | Motorcycle engine left crank case outer body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103306844B (en) | 2015-09-02 |
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