CN102966460A - Crankcase combination with small vibration - Google Patents
Crankcase combination with small vibration Download PDFInfo
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- CN102966460A CN102966460A CN2012104673868A CN201210467386A CN102966460A CN 102966460 A CN102966460 A CN 102966460A CN 2012104673868 A CN2012104673868 A CN 2012104673868A CN 201210467386 A CN201210467386 A CN 201210467386A CN 102966460 A CN102966460 A CN 102966460A
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- crankcase
- hole
- thermal deformation
- deformation suppressing
- holes
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Abstract
The invention discloses a crankcase combination with small vibration. Fastening screw holes are formed in the peripheries of a left crankcase body and a right crankcase body; a plurality of thermal forming inhibiting holes which are correspond one anothering in position and are consistent in quantity are respectively formed in each of the left crankcase body and the right crankcase body; all thermal deformation inhibition holes are positioned in closed curves formed by connecting the fastening screw holes; and bolts penetrate through the corresponding thermal deformation inhibiting holes for connecting the left crankcase body with the right crankcase body. The thermal deformation inhibiting holes are close to a crankcase hole, a main shaft hole and/or a balance shaft hole, so that when an engine is positioned in a heat engine state and the temperature is raised and, the thermal deformation of the crankcase is little due to the inhibition action of the thermal deformation inhibiting holes; and a clearance between a main driving part and the crankcase is always positioned in an initial state. According to the crankcase combination, the main driving part is small in play, the shock generated by the engine is small, the noise generated by the engine is low and the comfortableness of an entire vehicle is improved.
Description
Technical field
The present invention relates to the improvement of crankshaft box of motorcycle engine technology, specifically refer to a kind of crankshaft box of motorcycle engine combination that engine vibration is little under the heat engine state that makes.
Background technique
In crankshaft box of motorcycle engine, bent axle, main shaft, trunnion shaft etc. generally are installed, crankcase forms by left and right sides crankcase body two-part mould assembling, is provided with corresponding crankshaft hole, spindle hole and balance axis hole at crankcase body.In order to prevent occurring rotating the problems such as dumb even locking because the gap is little, all there is the gap about 0.3-0.5mm between each driving parts and the crankcase.When in case motor is in running order, because what crankcase adopted is aluminum alloy material, temperature can raise behind the work certain hour, thermal distortion is larger, the gap of bent axle, main shaft, trunnion shaft and crankcase increases, therefore vibrations and the noise of motor increases thereupon under the heat engine state, and the travelling comfort of car load is poor.
Summary of the invention
Can cause vibrations and the large deficiency of noise of motor under the heat engine state for existing crankcase combination, the object of the present invention is to provide a kind of crankcase combination that engine vibration is little under the heat engine state, noise is low that makes.
To achieve these goals, the technical solution used in the present invention is such:
A kind ofly shake the combination of little crankcase, comprise left crankcase and right crankcase, be provided with fastening screw at left crankcase and right crankcase periphery, clamping bolt passes fastening screw left crankcase is fixedly connected with right crankcase; Be provided with corresponding crankshaft hole, spindle hole and balance axis hole at left crankcase and right crankcase; Its improvement is: be respectively equipped with some positions correspondence and the consistent thermal deformation suppressing hole of quantity at left crankcase and right crankcase, all thermal deformation suppressing holes are positioned at the closed curve that fastening screw line forms, and bolt passes corresponding thermal deformation suppressing hole left crankcase is connected with right crankcase.
Further, described thermal deformation suppressing hole is positioned at around crankshaft hole, spindle hole and/or the balance axis hole, arranges near these holes.
Thermal deformation suppressing hole on the described right crankcase is screw, and the thermal deformation suppressing hole on the left crankcase is through hole.
Thermal deformation suppressing hole sum on described left crankcase and the right crankcase is respectively 3-4.
The present invention has additional the thermal deformation suppressing hole and by bolt left and right sides crankcase body is connected in fastening screw line, because the thermal deformation suppressing hole is near crankshaft hole, spindle hole and/or balance axis hole, namely near main driving component, like this when motor is in the rising of heat engine state temperature, because the inhibitory action in thermal deformation suppressing hole, the crankcase thermal distortion is very little, the gap of main driving component and crankcase remains at original state, the play of main driving parts is little, the vibrations that motor produces are little, noise is low, and the car load travelling comfort improves.
Description of drawings
Fig. 1-right crankcase inside structure schematic representation of the present invention.
Fig. 2-left crankcase outboard structure schematic representation of the present invention.
Fig. 3-left and right sides crankcase assembling figure of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Crankcase combination of the present invention, the same with prior art, comprise left crankcase 1 and right crankcase 2, be provided with fastening screw at left crankcase 1 and right crankcase 2 peripheries, clamping bolt passes fastening screw left crankcase is fixedly connected with right crankcase.Be provided with corresponding crankshaft hole 4, spindle hole 5 and balance axis hole 6 at left crankcase 1 and right crankcase 2.
Because conventional engines bent axle, main shaft, trunnion shaft mounting hole are arranged in the crankcase middle part, from the fastening screw of crankcase assembling away from, can't produce inhibitory action to the thermal distortion of crankcase.For this situation, the present invention is respectively equipped with some positions correspondence and the consistent thermal deformation suppressing hole 7 of quantity at left crankcase 1 and right crankcase 2, all thermal deformation suppressing holes 7 are positioned at the closed curve that fastening screw line forms, and bolt 3 passes corresponding thermal deformation suppressing hole 7 is connected connection with left crankcase 1 with right crankcase.
Further, in order to reach the play problem of the main driving parts of better inhibition, described thermal deformation suppressing hole 7 is positioned at crankshaft hole 4, spindle hole 5 and/or balance axis hole 6 arranged around, namely arranges near these holes.
Particularly, thermal deformation suppressing hole on the right crankcase is 3-4 M6 screw (see figure 1), and the thermal deformation suppressing hole on the left crankcase is 3-4 corresponding through hole (see figure 2), uses the bolton of M6 behind the crankcase assembling of the left and right sides, through hole end is seen Fig. 3 by nut check.
The thermal deformation suppressing pore structure that the present invention increases newly and Placement do not have essential difference with existing fastening screw pore structure and clamping bolt Placement, key is the purpose that arranges different (fastening screw is to be fastenedly connected usefulness, and the purpose in thermal deformation suppressing hole is to suppress the thermal distortion of crankcase).Just determined both setting positions differences based on such purpose, thermal deformation suppressing hole 7 need to be arranged on the interior and as far as possible close crankshaft hole 4 of closed curve, spindle hole 5 and/or the balance axis hole 6 that fastening screw line forms.Because crankshaft hole 4 is positioned in the middle of spindle hole 5 and the balance axis hole 6, so spindle hole and balance axis hole can be taken into account near arranging around the crankshaft hole 4 in thermal deformation suppressing hole 7.Fig. 1 and Fig. 2 have reflected four the concrete layouts of thermal deformation suppressing hole on crankcase body.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (4)
1. the crankcase combination that vibrations are little comprises left crankcase (1) and right crankcase (2), is provided with fastening screw at left crankcase and right crankcase periphery, and clamping bolt passes fastening screw left crankcase is fixedly connected with right crankcase; Be provided with corresponding crankshaft hole (4), spindle hole (5) and balance axis hole (6) at left crankcase and right crankcase, it is characterized in that: be respectively equipped with some positions correspondence and the consistent thermal deformation suppressing hole (7) of quantity at left crankcase and right crankcase, all thermal deformation suppressing holes are positioned at the closed curve that fastening screw line forms, and bolt (3) passes corresponding thermal deformation suppressing hole (7) is connected 2 with left crankcase (1) with right crankcase) connect.
2. the little crankcase combination of vibrations according to claim 1, it is characterized in that: described thermal deformation suppressing hole (7) is positioned at around crankshaft hole, spindle hole and/or the balance axis hole.
3. the little crankcase combination of vibrations according to claim 1 and 2, it is characterized in that: the thermal deformation suppressing hole on the described right crankcase is screw, the thermal deformation suppressing hole on the left crankcase is through hole.
4. the little crankcase combination of vibrations according to claim 3, it is characterized in that: the thermal deformation suppressing hole sum on described left crankcase and the right crankcase is respectively 3-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210467386.8A CN102966460B (en) | 2012-11-19 | 2012-11-19 | Crankcase combination with small vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210467386.8A CN102966460B (en) | 2012-11-19 | 2012-11-19 | Crankcase combination with small vibration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102966460A true CN102966460A (en) | 2013-03-13 |
| CN102966460B CN102966460B (en) | 2014-09-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210467386.8A Expired - Fee Related CN102966460B (en) | 2012-11-19 | 2012-11-19 | Crankcase combination with small vibration |
Country Status (1)
| Country | Link |
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| CN (1) | CN102966460B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291489A (en) * | 2013-06-04 | 2013-09-11 | 力帆实业(集团)股份有限公司 | Motorcycle engine with low vibration |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4327679A (en) * | 1978-05-31 | 1982-05-04 | Ricardo Consulting Engineers Limited | I.C. Engines |
| US5003934A (en) * | 1988-07-13 | 1991-04-02 | Mtu Friedrichshafen Gmbh | Hood covering the space between cylinder banks of an internal-combustion engine which are arranged in a V-shape |
| EP1517019A1 (en) * | 2003-09-19 | 2005-03-23 | Mazda Motor Corporation | Balancer device of an engine, engine provided therewith and method of assembling a balancer device to an engine |
| CN2740783Y (en) * | 2005-03-04 | 2005-11-16 | 张晓明 | Air distributing mechanism of engine for motorcycle |
| JP2006097563A (en) * | 2004-09-29 | 2006-04-13 | Honda Motor Co Ltd | Internal combustion engine for small planing boat |
| CN201025144Y (en) * | 2007-03-14 | 2008-02-20 | 中国兵器工业集团第七○研究所 | Diesel body structure |
| CN101463773A (en) * | 2007-12-21 | 2009-06-24 | 力帆实业(集团)股份有限公司 | Water-cooling balancing engine crankcase |
| CN101782025A (en) * | 2009-12-09 | 2010-07-21 | 苏州麦格特发动机有限公司 | Connecting structure of upper machine body and lower stand of diesel engine halving cylinder |
| CN202991258U (en) * | 2012-11-19 | 2013-06-12 | 力帆实业(集团)股份有限公司 | Crankcase combination of motorcycle engine |
-
2012
- 2012-11-19 CN CN201210467386.8A patent/CN102966460B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4327679A (en) * | 1978-05-31 | 1982-05-04 | Ricardo Consulting Engineers Limited | I.C. Engines |
| US5003934A (en) * | 1988-07-13 | 1991-04-02 | Mtu Friedrichshafen Gmbh | Hood covering the space between cylinder banks of an internal-combustion engine which are arranged in a V-shape |
| EP1517019A1 (en) * | 2003-09-19 | 2005-03-23 | Mazda Motor Corporation | Balancer device of an engine, engine provided therewith and method of assembling a balancer device to an engine |
| JP2006097563A (en) * | 2004-09-29 | 2006-04-13 | Honda Motor Co Ltd | Internal combustion engine for small planing boat |
| CN2740783Y (en) * | 2005-03-04 | 2005-11-16 | 张晓明 | Air distributing mechanism of engine for motorcycle |
| CN201025144Y (en) * | 2007-03-14 | 2008-02-20 | 中国兵器工业集团第七○研究所 | Diesel body structure |
| CN101463773A (en) * | 2007-12-21 | 2009-06-24 | 力帆实业(集团)股份有限公司 | Water-cooling balancing engine crankcase |
| CN101782025A (en) * | 2009-12-09 | 2010-07-21 | 苏州麦格特发动机有限公司 | Connecting structure of upper machine body and lower stand of diesel engine halving cylinder |
| CN202991258U (en) * | 2012-11-19 | 2013-06-12 | 力帆实业(集团)股份有限公司 | Crankcase combination of motorcycle engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291489A (en) * | 2013-06-04 | 2013-09-11 | 力帆实业(集团)股份有限公司 | Motorcycle engine with low vibration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102966460B (en) | 2014-09-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 400037 Chongqing city Beibei District caijiagang Zhen Tong Xing Industrial Park Fengqi Road No. 16 Patentee after: Lifan Industry (Group) Co., Ltd. Address before: 400037 Chongqing city Shapingba District No. 60 Zhangjiawan Bridge Patentee before: Lifan Industry (Group) Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20201119 |