CN205047640U - Crankshaft of internal -combustion engine - Google Patents
Crankshaft of internal -combustion engine Download PDFInfo
- Publication number
- CN205047640U CN205047640U CN201520519652.6U CN201520519652U CN205047640U CN 205047640 U CN205047640 U CN 205047640U CN 201520519652 U CN201520519652 U CN 201520519652U CN 205047640 U CN205047640 U CN 205047640U
- Authority
- CN
- China
- Prior art keywords
- hole
- crankshaft
- crank pin
- integrated
- internal
- 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 - Fee Related
Links
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model belongs to the technical field of high -speed high -power internal -combustion engine, a crankshaft of internal -combustion engine is proposed. A crankshaft of internal -combustion engine who provides has a plurality of trunnions (1), be provided with crank arm (4) rather than integrated into one piece between two adjacent trunnion (1), crank arm (4) be respectively with two of two adjacent trunnion integrated into one piece, be provided with crank pin (2) rather than integrated into one piece between two crank arm (4), have in crank pin (2) and subtract heavy through -hole (3), subtract heavy through -hole (3) for the V font through -hole of the both ends by the crank pin to centrally -inclined, the summit of V font through -hole and the distance between the bent axle axis are for subtracting the minimum distance between heavy through -hole and the bent axle axis, and the contained angle of V font through -hole is 90~150. The utility model discloses alleviate the atress of base bearing, prolonged the life -span of base bearing, remove more rotatory inertia mass, reduced rotatory inertial force, alleviateed the vibration and the noise of engine.
Description
Technical field
The utility model belongs to high-speed high-power technical field of internal combustion engines, is specifically related to a kind of I. C. engine crankshaft.
Background technique
The gyrating mass of internal-combustion engines crank-connecting rod mechanism will produce rotating inertia force, direction is always outside along crank radius, if eliminated without structural measure, crankshaft bearing and internal-combustion engine will be made to support stressed, and produce judder, it does not produce torque and tilting moment certainly.When I. C. engine crankshaft angular velocity is constant, gyrating mass more senior general produce rotating inertia force larger.
Present marine high-speed high-power diesel engine is due to space and matter quantitative limitation, wish that the bent axle that designs is to meet gyrating mass in working strength situation the smaller the better, the rotating inertia force of such generation is also less, required counterweight is less, oeverall quality is also less, and the space simultaneously taken is also less.
Usually the method used be exactly on crank pin duplicate removal to reach this object, general design method is on crank pin, design the duplicate removal inner chamber that is parallel to crankshaft center line, because crank pin is inherently very thin, very limited by being parallel to the quality that crankshaft center line duplicate removal can remove when meeting design requirement, can not well reach the requirement alleviating gyrating mass.
Equilibrium block, except ensureing crankshaft dynamic balance, also affects the bending load of crankshaft main bearing load and bent axle and crankcase.In addition, during design balance block, also quality to be reduced as far as possible, in order to avoid the undue torsion vibration natural frequencies reducing bent axle.Materials consumption will be reduced when crankshaft designs, simplified manufacturing technique simultaneously.
Model utility content
For solving the problems of the technologies described above, the purpose of this utility model proposes a kind of I. C. engine crankshaft.
The utility model adopts following technological scheme for completing above-mentioned purpose:
A kind of I. C. engine crankshaft, described bent axle has multiple main journal; Crankweb integrated with it is provided with between adjacent two main journals; Described crankweb be respectively with integrated two of adjacent two main journals; By being provided with crank pin integrated with it between crankweb described in two; There is in described crank pin loss of weight through hole; Described loss of weight through hole is by the centroclinal V-shaped through hole in the two ends of crank pin, and the summit place of V-shaped through hole adopts arc transition; Distance between the summit of V-shaped through hole and crankshaft center line is the minimum range between loss of weight through hole and crankshaft center line, and the angle of described V-shaped through hole is 90 ° ~ 150 °.
A kind of I. C. engine crankshaft that the utility model proposes, adopts and arrange V-shaped loss of weight through hole in crank pin, can remove more crank pin quality, alleviate the stressed of main bearing, extend the life-span of main bearing compared with duplicate removal horizontal in crank pin; Eliminate more rotating inertial mass, reduce rotating inertia force, alleviate the vibration & noise of motor; Adopt loss of weight through hole due to the rigidity of the flexibility and bent axle that relatively add axle journal, the stress distribution at fillet place can be improved; The quality of equilibrium block can be reduced, so as not to too reducing the torsion vibration natural frequencies of bent axle during design as far as possible.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, main journal, 2, crankpin, 3, loss of weight through hole, 4, crankweb.
Embodiment
with specific embodiment, the utility model is illustrated by reference to the accompanying drawings:
As shown in Figure 1, a kind of I. C. engine crankshaft, described bent axle has multiple main journal 1; Crankweb 4 integrated with it is provided with between adjacent two main journals 1; Described crankweb 4 be respectively with integrated two of adjacent two main journals; By being provided with crank pin 2 integrated with it between crankweb 4 described in two; In described crank pin 2, there is loss of weight through hole 3; Described loss of weight through hole 3 is by the centroclinal V-shaped through hole in the two ends of crank pin, and the summit place of V-shaped through hole adopts arc transition; Distance between the summit of V-shaped through hole and crankshaft center line is the minimum range between loss of weight through hole and crankshaft center line, and the angle of described V-shaped through hole is 90 ° ~ 150 °; The internal diameter of V-shaped through hole is φ 40 ~ φ 60mm.
Claims (1)
1. an I. C. engine crankshaft, described bent axle has multiple main journal (1); Crankweb integrated with it (4) is provided with between adjacent two main journals (1); Described crankweb (4) be respectively with integrated two of adjacent two main journals; Crank pin integrated with it (2) is provided with between crankweb (4) described in two; It is characterized in that: in described crank pin (2), there is loss of weight through hole (3); Described loss of weight through hole (3) is by the centroclinal V-shaped through hole in the two ends of crank pin, and the summit place of V-shaped through hole adopts arc transition; Distance between the summit of V-shaped through hole and crankshaft center line is the minimum range between loss of weight through hole and crankshaft center line, and the angle of described V-shaped through hole is 90 ° ~ 150 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519652.6U CN205047640U (en) | 2015-07-17 | 2015-07-17 | Crankshaft of internal -combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519652.6U CN205047640U (en) | 2015-07-17 | 2015-07-17 | Crankshaft of internal -combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047640U true CN205047640U (en) | 2016-02-24 |
Family
ID=55341223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520519652.6U Expired - Fee Related CN205047640U (en) | 2015-07-17 | 2015-07-17 | Crankshaft of internal -combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205047640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128723A (en) * | 2018-11-07 | 2019-01-04 | 河南柴油机重工有限责任公司 | A kind of processing method of the through lightening hole of crank-shaft link neck V-type |
-
2015
- 2015-07-17 CN CN201520519652.6U patent/CN205047640U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128723A (en) * | 2018-11-07 | 2019-01-04 | 河南柴油机重工有限责任公司 | A kind of processing method of the through lightening hole of crank-shaft link neck V-type |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202338560U (en) | Automobile engine crankshaft | |
| CN107237861A (en) | A kind of vehicle, engine and its crankshaft counterbalance structure | |
| JP2015101959A (en) | Engine | |
| CN102788114A (en) | Variable radius engine crankshaft balancing mechanism | |
| JP6323462B2 (en) | Reciprocating engine crankshaft | |
| EP3171045B1 (en) | Crank shaft for reciprocating engine | |
| CN203604420U (en) | Crankshaft for three-cylinder gasoline engine | |
| EP3171044B1 (en) | Crankshaft for reciprocating engine, and design method thereof | |
| JP2014040856A (en) | Crank shaft of multi-cylinder engine, and method for designing the same | |
| CN205047640U (en) | Crankshaft of internal -combustion engine | |
| JP6695622B2 (en) | Internal combustion engine | |
| CN104696348A (en) | Multi-cylinder diesel engine crankshaft and manufacturing method thereof | |
| JP2015010642A (en) | Crank shaft of reciprocating engine | |
| JP2018197610A (en) | Crank shaft of reciprocating engine | |
| CN203560354U (en) | Low-vibration single-cylinder diesel engine | |
| CN208057670U (en) | A kind of engine crankshaft and engine | |
| CN202468677U (en) | In-line six-cylinder internal combustion engine crankshaft with differential balance blocks | |
| CN217328074U (en) | Lightweight crankshaft | |
| EP3309417B1 (en) | Crankshaft for reciprocating engine | |
| CN209781440U (en) | Crankshaft | |
| CN201763447U (en) | Piston linkage device for connecting rod guide reciprocation piston type internal combustion engine | |
| CN201763448U (en) | Connecting rod guide reciprocating piston type internal combustion engine | |
| CN104405761A (en) | Crankshaft | |
| JP6374800B2 (en) | engine | |
| JP6244690B2 (en) | Reciprocating engine crankshaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20200717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |