CN107454929A - A kind of internal combustion engine crankshaft-link rod component without friction - Google Patents
A kind of internal combustion engine crankshaft-link rod component without friction Download PDFInfo
- Publication number
- CN107454929A CN107454929A CN201680000420.7A CN201680000420A CN107454929A CN 107454929 A CN107454929 A CN 107454929A CN 201680000420 A CN201680000420 A CN 201680000420A CN 107454929 A CN107454929 A CN 107454929A
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- China
- Prior art keywords
- internal combustion
- combustion engine
- friction
- rod component
- crank
- 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.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 28
- 238000009434 installation Methods 0.000 claims abstract description 30
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 206010033307 Overweight Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000020825 overweight Nutrition 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
- F16H21/18—Crank gearings; Eccentric gearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/10—Crankshafts assembled of several parts, e.g. by welding by crimping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/22—Cranks; Eccentrics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/22—Compensation of inertia forces
- F16F15/24—Compensation of inertia forces of crankshaft systems by particular disposition of cranks, pistons, or the like
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
- G01M1/24—Performing balancing on elastic shafts, e.g. for crankshafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
A kind of internal combustion engine crankshaft-link rod component without friction, left crank and right crank are symmetrical, and left crank is divided into left installation portion and left counterweight part, the weight difference of crankshaft-link rod component part below horizontal center line with more than is G, G meets that G=n*b, n are the power of cylinder, and unit is kilowatt；B is 5~15 grams/kilowatt.Because counterweight part than installation portion weight, no balance shaft can also eliminate vibration, and reach energy-conservation and reduce the purpose of cost.
Description
Technical field
The present invention relates to field of internal combustion engine, and a kind of internal combustion engine song without friction vibrated is eliminated when more particularly to internal combustion engine does work
Axle link assembly.
Background technology
At present, all it is using dynamic balancing as main technical requirements when designing I. C. engine crankshaft link assembly, that is to say, that into
Product crankshaft-link rod component, no matter any shape is made, the weight of its link pin direction installation portion and the weight of opposite balance weight body
It is equal, carrying out dynamic balancing measurement to bent axle is not beated, but crankshaft installed is operated on the engine to be produced
Vibration, engine causes vibration are because internal combustion engine catches fire workmanship moment, and piston produces rotation to crankshaft connecting rod pin by connecting rod and pushed away
Power, rotate bent axle, due to promoting the kinetic energy of bent axle rotation only to act on crankshaft connecting rod pin so that in terms of crankshaft connecting rod pin
Rotating inertia force be more than the rotating inertia force of opposite balance weight body, broken the dynamic balancing of original bent axle, thus generate vibration.
In order to reduce vibration during engine operating, improve the comfortableness of driving, it will usually which balance is set in crankcase
Axis mechanism, general seen engine balance shaft mechanism are provided in engine bottom, in oil sump, comprising balance shaft housing,
The parts such as balance shaft, counterweight, drive chain, gear, its operation principle are usually that bent axle drives chain, and balance shaft is driven with this
System, sometimes a balance shaft be not met by require, it is necessary to increase by two, even three balance shafts can be only achieved it is expected
Effect.The setting not only adds cost, while also causes the internal structure of whole engine to become complicated, and it is difficult to add maintenance
Degree.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of internal combustion engine crankshaft-link rod component without friction, the Crank connected rod group
Part can eliminate engine luggine in the case of without setting balance shaft, so as to reduce production cost, convenient maintenance.
In order to solve the above-mentioned technical problem, the technical scheme is that a kind of internal combustion engine crankshaft-link rod component without friction,
Including left crank, right crank, link pin, bearing and connecting rod.Wherein, left crank is symmetrical arranged with right crank, the table of left crank
Face is divided into left installation portion and left counterweight part by horizontal center line, and right crank is divided into right installation portion by horizontal center line
With right counterweight part, and left installation portion and the relative position of right installation portion are provided with mounting hole, and link pin both ends are respectively arranged in
In mounting hole, and bearing is placed on the link pin between left installation portion and right installation portion, and one end of connecting rod is placed on bearing, with water
Flat center line is line of demarcation, the internal combustion engine crankshaft-link rod component part without friction below line of demarcation and internal combustion engine more than line of demarcation
The weight difference of crankshaft-link rod component part without friction is G, and G meets G=n*b, wherein, n is internal combustion engine Crank connected rod group without friction
The power of single cylinder corresponding to part, unit are kilowatt；B is per kw of power span, is 5~15 grams.
Preferably, when b value is followed successively by 5,10 or 15, it is internal combustion engine that weight difference, which is corresponding in turn to as 5n, 10n or 15n, n,
The power of single cylinder corresponding to crankshaft-link rod component without friction.
Preferably, left crank is shaped as circle, rectangle, square or sector.
Using above-mentioned technical proposal, due to the weight of counterweight part below increase horizontal center line, make below horizontal center line
Counterweight part overweights the installation portion above horizontal center line, and its weight difference is directly proportional to the size of place cylinder output, works as gas
During cylinder power increase, the corresponding increase of weight difference corresponding to it, the weight difference is just offset expansion stroke and acted on link pin
Unnecessary rotating inertia force, and remaining rotating inertia force is stored in bent axle, reach the dynamic balancing of expansion stroke, so as to save
Balance shaft is gone, eliminates the oscillation phenomenon of engine operating, and the rotating inertia force stored discharges in expansion, exhaust phase,
So as to can also reach the purpose of energy-conservation, additionally, due to balanced component is eliminated, production cost is reduced, simplifies installing component,
Reduce the difficulty of maintenance.
Brief description of the drawings
Fig. 1 is a kind of structural representation of internal combustion engine crankshaft-link rod component without friction of the present invention；
Fig. 2 is a kind of inner surface schematic diagram of the left crank of internal combustion engine crankshaft-link rod component without friction of the present invention.
In figure, the left cranks of 1-, the left counterweight parts of 11-, the left installation portions of 12-, the right cranks of 2-, the right counterweight parts of 21-, the right installations of 22-
Portion, 3- link pins, 4- connecting rods, 5- horizontal center lines, 6- bearings.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings.Herein it should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not form limitation of the invention.It is in addition, disclosed below
As long as each embodiment of the invention in involved technical characteristic do not form conflict can each other and be mutually combined.
As shown in figure 1, a kind of internal combustion engine crankshaft-link rod component without friction, including left crank 1, right crank 2, link pin 3, axle
Hold 6 and connecting rod 4.Wherein, left crank 1 is symmetrical arranged with right crank 2, as shown in phantom in FIG., left crank 1 and right crank 2
Outer surface is mounted on the bent axle that shaft centre line is in same horizontal line.Shaft centre line overlaps with the horizontal center line of left crank.
The surface of left crank 1 is divided into left installation portion 12 and left counterweight part 11 by horizontal center line, and right crank 2 passes through horizontal center line
Right installation portion 22 and right counterweight part 21 are divided into, and the thickness of right installation portion 22 is less than right counterweight part 21.Left installation portion 12 and the right side
The relative position of installation portion 22 is provided with mounting hole, and the both ends of link pin 3 are respectively arranged in mounting hole, and bearing is placed on left peace
On link pin 3 between dress portion and right installation portion, one end of connecting rod 4 is placed on bearing.And using horizontal center line as line of demarcation, it is interior
The weight of combustion engine crankshaft-link rod component counterweight part without friction (including left counterweight part 11 and right counterweight part 21) be more than installation portion (including
Left installation portion 12, right installation portion 22, link pin 3, bearing 6 and connecting rod 4) weight, its weight difference is G=n*b, wherein, n is
The power of single cylinder corresponding to internal combustion engine crankshaft-link rod component without friction, unit are kilowatt；B is per kw of power value model
Enclose, be 5~15 grams.
The present invention need to be symmetrical arranged to left crank and right crank, but the shape of not restricted left crank/right crank,
I.e. left crank/right crank can be crank shape general at present, such as circle, rectangle, square, sector shape, due to same
Need to only determine weight difference above and below horizontal center line in one internal combustion engine crankshaft-link rod component without friction, and internal combustion engine without
The shape of crank can be neglected in vibration crankshaft-link rod component, therefore the different embodiments of lower section use circle as shown in Figure 2
Crank shape, other cranks of different shapes omit.
The operation principle of the present invention：Start engine ignition acting moment, piston produces promotion by connecting rod to link pin
Power, bent axle is rotated, and produce rotating inertia force, because the weight of counterweight part is more than the weight of installation portion, this weight difference is just
Expansion stroke is offset well and acts on rotating inertia force unnecessary on link pin, and unnecessary rotating inertia force is stored in bent axle, is reached
The dynamic balancing of expansion stroke is arrived, so as to eliminate the oscillation phenomenon of engine operating.
It will be illustrated below with specific embodiment：
The weight of counterweight part of the internal combustion engine crankshaft-link rod component middle position without friction below horizontal center line is defined as G1,
G1 includes the weight of left counterweight part 11 and right counterweight part 21, and the weight of the installation portion above horizontal center line is defined as G2, G2
Include the weight of left installation portion 12, right installation portion 22, link pin 3, bearing 6 and connecting rod 4, and G1 and G2 weight difference is defined as
G。
Embodiment 1
When engine is single cylinder, the power of cylinder is that n is 5 kilowatt hours, and according to G=n*b, b is pressed per 5 grams of calculations of kilowatt hour,
Then G=5*5 grams, i.e., G1-G2=G=25 grams.
Embodiment 2
When engine is single cylinder, the power of cylinder is that n is 5 kilowatt hours, and according to G=n*b, b is pressed per 10 grams of calculations of kilowatt hour,
Then G=5*10 grams, i.e., G1-G2=G=50 grams.
Embodiment 3
When engine is single cylinder, the power of cylinder is that n is 5 kilowatt hours, and according to G=n*b, b is pressed per 15 grams of calculations of kilowatt hour,
Then G=5*15 grams, i.e., G1-G2=G=75 grams.
Embodiment 4
When engine is single cylinder, the power of cylinder is that n is 10 kilowatt hours, is pressed according to G=n*b, b per 15 grams of kilowatt hour
Calculate, then G=10*15 grams, i.e., G1-G2=G=150 grams.
The present invention not only conforms to, in single-cylinder engine, be also applied for multicylinder engine, when for multicylinder engine when, only need by
Link assembly in single cylinder individually calculates.
In above-described embodiment 1~4, different weight differences is set according to the design feature of different engines and performance requirement,
The effect that the similar engine of balance shaft is set is can reach through testing, the engine using crankshaft-link rod component assembling is not produced
Raw vibration, particularly after engine is installed on locomotive, locomotive can be exercised steadily after starting.
Embodiments of the present invention are explained in detail above in association with accompanying drawing, but the invention is not restricted to described implementation
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen within protection scope of the present invention.
Claims (3)
1. a kind of internal combustion engine crankshaft-link rod component without friction, including left crank, right crank, link pin, bearing and connecting rod, institute
Left crank is stated to be symmetrical arranged with right crank, it is characterised in that：The surface of the left crank is divided into left peace by horizontal center line
Dress portion and left counterweight part, the right crank are divided into right installation portion and right counterweight part, the left installation portion by horizontal center line
The position relative with right installation portion is provided with mounting hole, and the link pin both ends are respectively arranged in mounting hole, the bearing
Be placed on the link pin between left installation portion and right installation portion, one end of the connecting rod is placed on bearing, using horizontal center line as
Line of demarcation, the internal combustion engine crankshaft-link rod component part without friction below line of demarcation and internal combustion engine more than line of demarcation are without friction
The weight difference of crankshaft-link rod component part is G, and G meets G=n*b, wherein, n is right for internal combustion engine crankshaft-link rod component without friction
The power of single cylinder is answered, unit is kilowatt；B is the span per kw of power, is 5~15 grams.
2. internal combustion engine crankshaft-link rod component without friction according to claim 1, it is characterised in that：Described b value according to
Secondary when being 5,10 or 15, it is corresponding to internal combustion engine crankshaft-link rod component without friction that weight difference, which is corresponding in turn to as 5n, 10n or 15n, n,
The power of single cylinder.
3. internal combustion engine crankshaft-link rod component without friction according to claim 1 or 2, it is characterised in that：The left crank
It is shaped as circle, rectangle, square or sector.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2016/079977 WO2017181398A1 (en) | 2016-04-22 | 2016-04-22 | Internal combustion engine vibration-free crankshaft connecting rod assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107454929A true CN107454929A (en) | 2017-12-08 |
Family
ID=60115567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680000420.7A Pending CN107454929A (en) | 2016-04-22 | 2016-04-22 | A kind of internal combustion engine crankshaft-link rod component without friction |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107454929A (en) |
| WO (1) | WO2017181398A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5435059A (en) * | 1993-10-18 | 1995-07-25 | Chawla; Mohinder P. | Advance balancing process for crankshaft |
| CN2572017Y (en) * | 2002-09-24 | 2003-09-10 | 重庆宗申技术开发研究有限公司 | Balance vibration reducing mechanism for single-cylinder four-stroke gasoline engine of motorcycle |
| DE102012200028B4 (en) * | 2012-01-03 | 2018-07-19 | Ford Global Technologies, Llc | Method for compensating the mass moments of a drive unit and drive unit for carrying out such a method |
| CN105571784A (en) * | 2015-12-18 | 2016-05-11 | 华晨汽车集团控股有限公司 | Engine crankshaft balance rate detection method |
| CN205715231U (en) * | 2016-04-22 | 2016-11-23 | 江门市蓬江区蓝金科技有限公司 | A kind of internal combustion engine friction crankshaft-link rod assembly |
-
2016
- 2016-04-22 CN CN201680000420.7A patent/CN107454929A/en active Pending
- 2016-04-22 WO PCT/CN2016/079977 patent/WO2017181398A1/en active Application Filing
Non-Patent Citations (2)
| Title |
|---|
| 张保成等: "《内燃机动力学》", 31 July 2009, 国防工业出版社 * |
| 袁兆成等: "《内燃机设计》", 31 August 2008, 机械工业出版社 * |
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| Publication number | Publication date |
|---|---|
| WO2017181398A1 (en) | 2017-10-26 |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171208 |
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| RJ01 | Rejection of invention patent application after publication |