CN105179452A - Crankshaft structure of engine - Google Patents
Crankshaft structure of engine Download PDFInfo
- Publication number
- CN105179452A CN105179452A CN201510417571.XA CN201510417571A CN105179452A CN 105179452 A CN105179452 A CN 105179452A CN 201510417571 A CN201510417571 A CN 201510417571A CN 105179452 A CN105179452 A CN 105179452A
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- CN
- China
- Prior art keywords
- crankshaft
- connecting rod
- neck
- rod neck
- bent axle
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- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Provided is a crankshaft structure of an engine. The crankshaft structure mainly comprises a crankshaft body with a U groove. A cylindrical connecting rod neck is arranged at the bottom of the U groove of the crankshaft body. Cylindrical main shaft necks protruding outwards are transversely arranged on the outer sides of the two U ends of the crankshaft body. At least one section of inward transition arc is arranged at the two outer side ends of the U bottom of the crankshaft body. At least one hardening layer is arranged on the surface of the cylindrical connecting rod neck and the surfaces of the cylindrical main shaft necks symmetrically arranged on the two sides. The crankshaft body, the connecting rod neck and the main shaft necks are integrally formed in a die-casting manner with nodular cast iron as the raw material, and quenching and tempering are performed on the surfaces of the main shaft necks and the surface of the connecting rod neck to obtain the crankshaft structure. The crankshaft structure has the beneficial effects that the crankshaft structure is reasonable, convenient and reliable to use, resistant to abrasion, uniform in stress and high in transmission efficiency, a crankshaft neck is uniformly stressed in the moving process, it is avoided that non-uniform abrasion to the surface of the crankshaft neck occurs easily, and therefore the transmission effect and the output performance of the engine are guaranteed.
Description
Technical field
What the present invention relates to is a kind of crankshaft structure of motor, belongs to the driving component technical field of motor.
Background technique
The bent axle of motor is primarily of main journal and connecting rod neck composition, and wherein main journal is arranged on cylinder body, and connecting rod neck is connected with crank pin end pore, and connecting rod small end hole and piston of automobile connect to form slidercrank mechanism; Translate linear motion is rotary motion by described crank in the transmission process of motor, subject the acting in conjunction of periodically variable gas pressure, reciprocal inertia force and consequent moment of torsion, moment of flexure, therefore, it requires that bent axle has enough rigidity, fatigue strength and impact toughness; Each working surface lubrication is good, wear-resisting, and rotating inertia force system reaches good balance; But the crankshaft structure of motor design Shortcomings, makes crankshaft journal unbalance stress at the volley, the wearing and tearing that surperficial easy generation is uneven, thus makes transmission deleterious, will directly have influence on the performances such as the output torque of motor in the course of time.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art existence, and provide a kind of rational in infrastructure, easy to use, reliable, wear-resisting, uniform force, transmission efficiency is high, the crankshaft structure of the motor that transmission is effective.
The object of the invention is to have come by following technical solution, a kind of crankshaft structure of motor, it mainly comprises one with the bent axle body of U-groove bevel, columniform connecting rod neck is provided with bottom the U-type groove of described bent axle body, be horizontally arranged with the cylindrical spindle neck of evagination outside the described U-shaped end of bent axle body two, U-shaped bottom two outboard end of described bent axle body is provided with at least one section of inside transition arc; The journal surface of the cylindrical spindle neck that described columniform connecting rod neck and bilateral symmetry are arranged is provided with at least one deck quench-hardened case.
The present invention is preferably: described bent axle body and connecting rod neck, main journal by selecting spheroidal graphite cast iron raw material, adopt that integrated die-casting is shaping to be formed, and carry out quenching and tempering processing in the journal surface of main journal and connecting rod neck and form.
The present invention is further preferably: journal surface depth of hardening zone 1.3 to the 3.0mm of described main journal and connecting rod neck, it is 45 to 52HRC that tempering hardness requires.
The present invention improves the one of prior art, it has rational in infrastructure, easy to use, reliable, wear-resisting, uniform force, transmission efficiency is high, make crankshaft journal uniform force at the volley, prevent the wearing and tearing that the easy generation on its surface is uneven, thus ensure transmission effect, guarantee the features such as the output performance of motor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below by accompanying drawing, the present invention is further introduced: shown in Fig. 1, the crankshaft structure of a kind of motor of the present invention, it mainly comprises one with the bent axle body 1 of U-groove bevel, columniform connecting rod neck 2 is provided with bottom the U-type groove of described bent axle body 1, be horizontally arranged with the cylindrical spindle neck 3 of evagination outside described bent axle body 1 liang of U-shaped end, U-shaped bottom two outboard end of described bent axle body 1 is provided with inside at least one section of transition arc 4; The journal surface of the cylindrical spindle neck 3 that described columniform connecting rod neck 2 and bilateral symmetry are arranged is provided with at least one deck quench-hardened case 5.
The preferred embodiment of the invention is: described bent axle body 1 and connecting rod neck 2, main journal 3 by selecting spheroidal graphite cast iron raw material, adopt that integrated die-casting (casting) is shaping to be formed, and be formed by quenching and tempering processing at the journal surface quench-hardened case 5 of main journal 3 and connecting rod neck 2.
Journal surface depth of hardening zone 1.3 to the 3.0mm of main journal 3 of the present invention and connecting rod neck 2, it is 45 to 52HRC that tempering hardness requires.
Claims (3)
1. the crankshaft structure of a motor, it mainly comprises one with the bent axle body of U-groove bevel, columniform connecting rod neck is provided with bottom the U-type groove that it is characterized in that described bent axle body, be horizontally arranged with the cylindrical spindle neck of evagination outside the described U-shaped end of bent axle body two, U-shaped bottom two outboard end of described bent axle body is provided with at least one section of inside transition arc; The journal surface of the cylindrical spindle neck that described columniform connecting rod neck and bilateral symmetry are arranged is provided with at least one deck quench-hardened case.
2. the crankshaft structure of motor according to claim 1, it is characterized in that described bent axle body and connecting rod neck, main journal by selecting spheroidal graphite cast iron raw material, adopt that integrated die-casting is shaping to be formed, and carry out quenching and tempering processing in the journal surface of main journal and connecting rod neck and form.
3. the crankshaft structure of motor according to claim 2, is characterized in that journal surface depth of hardening zone 1.3 to the 3.0mm of described main journal and connecting rod neck, it is 45 to 52HRC that tempering hardness requires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510417571.XA CN105179452A (en) | 2015-07-16 | 2015-07-16 | Crankshaft structure of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510417571.XA CN105179452A (en) | 2015-07-16 | 2015-07-16 | Crankshaft structure of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105179452A true CN105179452A (en) | 2015-12-23 |
Family
ID=54901780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510417571.XA Pending CN105179452A (en) | 2015-07-16 | 2015-07-16 | Crankshaft structure of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105179452A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000337345A (en) * | 1999-05-31 | 2000-12-05 | Mitsubishi Motors Corp | Manufacture of crankshaft |
| WO2010100106A1 (en) * | 2009-03-06 | 2010-09-10 | Maschinenfabrik Alfing Kessler Gmbh | Method and device for induction hardening crankshafts |
| CN201810646U (en) * | 2010-03-25 | 2011-04-27 | 广西玉柴机器股份有限公司 | Bent axle made of nodular cast iron |
| CN102777480A (en) * | 2012-07-18 | 2012-11-14 | 道依茨一汽（大连）柴油机有限公司 | Fillet rolling nodular cast iron crankshaft and machining technology thereof |
| CN203809492U (en) * | 2014-04-23 | 2014-09-03 | 温岭市联星机械有限公司 | Crankshaft of highly strengthened diesel engine |
| CN203847549U (en) * | 2014-05-04 | 2014-09-24 | 温岭市联星机械有限公司 | Bent axle with strong lubricating property |
| CN204961562U (en) * | 2015-07-16 | 2016-01-13 | 浙江瑞朗锻造有限公司 | Bent axle structure of engine |
-
2015
- 2015-07-16 CN CN201510417571.XA patent/CN105179452A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000337345A (en) * | 1999-05-31 | 2000-12-05 | Mitsubishi Motors Corp | Manufacture of crankshaft |
| WO2010100106A1 (en) * | 2009-03-06 | 2010-09-10 | Maschinenfabrik Alfing Kessler Gmbh | Method and device for induction hardening crankshafts |
| CN201810646U (en) * | 2010-03-25 | 2011-04-27 | 广西玉柴机器股份有限公司 | Bent axle made of nodular cast iron |
| CN102777480A (en) * | 2012-07-18 | 2012-11-14 | 道依茨一汽（大连）柴油机有限公司 | Fillet rolling nodular cast iron crankshaft and machining technology thereof |
| CN203809492U (en) * | 2014-04-23 | 2014-09-03 | 温岭市联星机械有限公司 | Crankshaft of highly strengthened diesel engine |
| CN203847549U (en) * | 2014-05-04 | 2014-09-24 | 温岭市联星机械有限公司 | Bent axle with strong lubricating property |
| CN204961562U (en) * | 2015-07-16 | 2016-01-13 | 浙江瑞朗锻造有限公司 | Bent axle structure of engine |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |