CN103452696B - Main bearing cap of crankshaft of single-cylinder diesel engine - Google Patents
Main bearing cap of crankshaft of single-cylinder diesel engine Download PDFInfo
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- CN103452696B CN103452696B CN201310347726.8A CN201310347726A CN103452696B CN 103452696 B CN103452696 B CN 103452696B CN 201310347726 A CN201310347726 A CN 201310347726A CN 103452696 B CN103452696 B CN 103452696B
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- right angle
- bearing cap
- main bearing
- ribs
- muscle
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a main bearing cap of a crankshaft of a single-cylinder diesel engine. The main bearing cap comprises a body made of aluminum alloy. The body is provided with an axial hole and a connecting flange, the axial hole is formed in the center of the body, the connecting flange is positioned at the peripheral edge of the body, three groups of main reinforcing ribs which are peripherally uniformly distributed are arranged on the inner side surface of the body and are positioned between the axial hole and the connecting flange, each group of main reinforcing ribs comprises two longitudinal right-triangle ribs which are symmetrically arranged, two long right-angle sides of the longitudinal right-triangle ribs of each group of main reinforcing ribs cling to each other, auxiliary reinforcing ribs are arranged among the inner peripheral edge of the connecting flange and connecting lines among oblique sides of the longitudinal right-triangle ribs, the auxiliary reinforcing ribs between the inner peripheral edge of the connecting flange and each connecting line between the oblique sides of the two corresponding longitudinal right-triangle ribs include two transverse right-triangle ribs which are symmetrically arranged, and short right-angle sides of each two adjacent transverse right-triangle ribs cling to each other. The main bearing cap has the advantages that the main bearing cap is made of the aluminum alloy and is light; the main bearing cap and an engine body are made of different materials, gaps between the main bearing cap and the engine body are changed in cold and hot states, and accordingly the main bearing cap is favorable for reducing vibration and noise which are generated when the diesel engine is used; the main reinforcing ribs and the auxiliary reinforcing ribs are radially distributed and can transmit rearward thrust of a piston to upper and lower directions of the engine body, so that the stress direction of the engine body can be adjusted, and the stress capacity of the engine body can be guaranteed.
Description
Technical field
The present invention relates to single cylinder diesel technical field, especially a kind of single-cylinder diesel engine crankshaft main bearing cap.
Background technique
At present along with the fast development of single cylinder diesel, user has had higher requirement to diesel engine appearance quality and usability.Main bearing cap wherein, as the strength member supporting bent axle, the load that withstands shocks, directly affects performance and the life-span of diesel engine.Existing single cylinder diesel main bearing cap used generally adopts the cast iron materials identical with body, both thermal expansion coefficient are identical, cause cold and hot identical with body gap, assembling is unfavorable for when cold conditions, time hot, clearance for expansion is larger, vibrate when causing diesel engine to use, noise is larger, simultaneously in order to meet the requirement of working strength and rigidity, main bearing cap generally all can arrange appropriate stiffening rib when designing, not only consumption of materials is larger, and these stiffening ribs all adopt from center to ambient radiation, single reinforing function can only be played, effectively cannot eliminate impact force that crank rotation produces to the impact of body.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, provides a kind of and effectively can improve working strength and rigidity, minimizing crank rotation impact impact single-cylinder diesel engine crankshaft main bearing cap on body.
The technical solution adopted for the present invention to solve the technical problems is: a kind of single-cylinder diesel engine crankshaft main bearing cap, comprise body, described body adopts aluminum alloy to make, body has the axis hole being positioned at center and the adpting flange being positioned at periphery, at body inner side surface between axis hole and adpting flange, be provided with three groups of main stiffening ribs that circumference is uniform, often organize main stiffening rib to be affixed by two long right angle sides and the longitudinal right angle trigonometry muscle be arranged symmetrically with is formed, the paraxial hole, right angle of longitudinal right angle trigonometry muscle is arranged, secondary stiffening rib is provided with between line between described longitudinal right angle trigonometry muscle hypotenuse and adpting flange inner periphery, secondary stiffening rib is affixed by two short right angle sides and the horizontal right angle trigonometry muscle be arranged symmetrically with is formed, the paraxial hole, right angle of described horizontal right angle trigonometry muscle is arranged, the short right angle side that described horizontal right angle trigonometry muscle is affixed is formed disperses rib perpendicular to line between longitudinal right angle trigonometry muscle hypotenuse.
For improving body lubrication effect, described body offers the oil leab extended to body central.
The invention has the beneficial effects as follows: the present invention adopts aluminum alloy to make, lightweight, beautiful shape, due to different from body material, during cold and hot and the change in body gap, be conducive to reducing vibration & noise when diesel engine uses, main stiffening rib and secondary stiffening rib are diversity distribution, effectively improve the strength and stiffness of main bearing cap, in use by the major and minor stiffening rib effect of main bearing cap, piston is delivered on the upper side lower two directions of body to back pressure, thus the Impact direction of adjustment body, what ensure body is subject to force intensity.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention.
In figure, the horizontal right angle trigonometry muscle 6. of the 1. longitudinal right angle trigonometry muscle 5. of body 2. axis hole 3. adpting flange 4. disperses rib 7. oil leab
Embodiment
The present invention is further illustrated with preferred embodiment by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
A kind of single-cylinder diesel engine crankshaft main bearing cap as shown in Figure 1, comprise circular body 1, described body 1 adopts aluminum alloy to make, lightweight, intensity is high, beautiful shape, body 1 has and is positioned at the axis hole 2 that bearing shell is installed at center and the adpting flange 3 being positioned at periphery and being connected with diesel-engine body.
Fit the inner side surface of body between axis hole 2 and adpting flange 3 at body 1, be provided with three groups of main stiffening ribs that circumference is uniform, often organize main stiffening rib to be affixed by two long right angle sides and the longitudinal right angle trigonometry muscle 4 be arranged symmetrically with is formed, the paraxial hole 2, right angle of longitudinal right angle trigonometry muscle 4 is arranged, extend between described longitudinal right angle trigonometry muscle 4 hypotenuse and form large triangle, secondary stiffening rib is provided with between line between described longitudinal right angle trigonometry muscle 4 hypotenuse and adpting flange 3 inner periphery, secondary stiffening rib is affixed by two short right angle sides and the horizontal right angle trigonometry muscle 5 be arranged symmetrically with is formed, the paraxial hole 2, right angle of described horizontal right angle trigonometry muscle 5 is arranged, the short right angle side that described horizontal right angle trigonometry muscle 5 is affixed is formed disperses rib 6 perpendicular to line between longitudinal right angle trigonometry muscle 4 hypotenuse.The main stiffening rib of this structural configuration and secondary stiffening rib, on the main bearing cap web between axis hole 2 and adpting flange 3, constitute divergent shape form, strengthens the structural rigidity of main bearing cap and anti-tired intensity.In use, because diesel-engine body and balance module belong to two body structures, during diesel engine running, piston thrust is backward delivered to body by main bearing cap, because the just backward intensity of body is more weak, and by main stiffening rib, secondary stiffening rib and the effect of dispersing rib 6, this thrust can be delivered on the upper side lower two directions of body, thus reach the Impact direction of adjustment body, ensure the object of load born by engine body intensity.
Because body 1 have employed the high aluminum alloy material of thermal expansion coefficient, therefore its cold and hot and body gap different, cold conditions is conducive to assembling, and hot clearance for expansion is little, can reduce vibration & noise when diesel engine uses, and extend bent axle and bearing shell working life.
Simultaneously on body 1, offer the oil leab 7 extended to body 1 center, the bearing shell be arranged in axis hole 2 can be made to obtain good lubrication effect in use, guarantee stable working, reliable, noise is little, reduce operating temperature, thus suitably can reduce the morpheme parameter of main bearing cap, reach good heat-conducting effect.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (2)
1. a single-cylinder diesel engine crankshaft main bearing cap, comprise body (1), it is characterized in that: described body (1) adopts aluminum alloy to make, body (1) has the axis hole (2) being positioned at center and the adpting flange (3) being positioned at periphery, be positioned between axis hole (2) and adpting flange (3) at body (1) inner side surface, be provided with three groups of main stiffening ribs that circumference is uniform, often organize main stiffening rib to be affixed by two long right angle sides and the longitudinal right angle trigonometry muscle (4) be arranged symmetrically with is formed, the paraxial hole, right angle (2) of longitudinal right angle trigonometry muscle (4) is arranged, be positioned between line between described longitudinal right angle trigonometry muscle (4) hypotenuse and adpting flange (3) inner periphery and be provided with secondary stiffening rib, secondary stiffening rib is affixed by two short right angle sides and the horizontal right angle trigonometry muscle (5) be arranged symmetrically with is formed, the paraxial hole, right angle (2) of described horizontal right angle trigonometry muscle (5) is arranged, the short right angle side that described horizontal right angle trigonometry muscle (5) is affixed is formed disperses rib (6) perpendicular to line between longitudinal right angle trigonometry muscle (4) hypotenuse.
2. single-cylinder diesel engine crankshaft main bearing cap according to claim 1, is characterized in that: described body (1) offers the oil leab (7) extended to body (1) center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310347726.8A CN103452696B (en) | 2013-08-09 | 2013-08-09 | Main bearing cap of crankshaft of single-cylinder diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310347726.8A CN103452696B (en) | 2013-08-09 | 2013-08-09 | Main bearing cap of crankshaft of single-cylinder diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103452696A CN103452696A (en) | 2013-12-18 |
| CN103452696B true CN103452696B (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310347726.8A Expired - Fee Related CN103452696B (en) | 2013-08-09 | 2013-08-09 | Main bearing cap of crankshaft of single-cylinder diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103452696B (en) |
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2013
- 2013-08-09 CN CN201310347726.8A patent/CN103452696B/en not_active Expired - Fee Related
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|---|---|
| CN103452696A (en) | 2013-12-18 |
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Effective date of registration: 20160329 Address after: 213016, Sakura Road, 19 Economic Development Zone, bell tower, Jiangsu, Changzhou Patentee after: Changzhou Yameike Mechanical Equipment Co., Ltd. Patentee after: Shandong Colin Power Technology Co., Ltd. Address before: 213016, Sakura Road, 19 Economic Development Zone, bell tower, Jiangsu, Changzhou Patentee before: Changzhou Yameike Mechanical Equipment Co., Ltd. Patentee before: Shandong Xinya Industry 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: 20150610 Termination date: 20200809 |