WO2017181398A1 - Internal combustion engine vibration-free crankshaft connecting rod assembly - Google Patents
Internal combustion engine vibration-free crankshaft connecting rod assembly Download PDFInfo
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- WO2017181398A1 WO2017181398A1 PCT/CN2016/079977 CN2016079977W WO2017181398A1 WO 2017181398 A1 WO2017181398 A1 WO 2017181398A1 CN 2016079977 W CN2016079977 W CN 2016079977W WO 2017181398 A1 WO2017181398 A1 WO 2017181398A1
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- Prior art keywords
- connecting rod
- rod assembly
- internal combustion
- vibration
- combustion engine
- Prior art date
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 25
- 238000012423 maintenance Methods 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- 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
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- 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
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- 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
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- 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
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- 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
Definitions
- the invention relates to the field of internal combustion engines, and in particular to a vibration-free crankshaft connecting rod assembly for an internal combustion engine which eliminates vibration when the internal combustion engine is working.
- the dynamic balance is the main technical requirement, that is to say, the finished crankshaft connecting rod assembly, regardless of the shape, the weight of the connecting portion of the connecting rod pin and the opposite weighting body The weight is equal.
- the dynamic balance test of the crankshaft is not beating. However, when the crankshaft is installed on the engine, the vibration will be generated. The vibration generated by the engine is caused by the moment when the internal combustion engine is on fire. The piston generates the crankshaft connecting rod pin through the connecting rod. The driving force is rotated to rotate the crankshaft.
- a balance shaft mechanism is usually installed in the crankcase.
- the engine balance shaft mechanism is disposed in the lower part of the engine, and the balance case is included in the oil sump.
- Body, balance shaft, counterweight, drive chain, gear and other parts, the working principle is usually the crankshaft to drive the chain, in order to drive the balance shaft system, sometimes a balance shaft can not meet the requirements, need to add two or even three
- the balance shaft can achieve the desired results. This arrangement not only increases the cost, but also complicates the internal structure of the entire engine, increasing the difficulty of maintenance.
- the technical problem to be solved by the present invention is to provide a vibration-free crankshaft connecting rod assembly for an internal combustion engine, which can eliminate engine vibration without setting a balance shaft, thereby reducing production cost and facilitating maintenance.
- the technical solution of the present invention is a vibration-free crankshaft connecting rod assembly for an internal combustion engine, including a left crank, a right crank, a link pin, a bearing, and a connecting rod.
- the left crank and the right crank are symmetrically arranged, the surface of the left crank is divided into a left mounting portion and a left weight portion by a horizontal center line, and the right crank is divided into a right mounting portion and a right weight portion by a horizontal center line, and the left crank is installed
- the opposite positions of the portion and the right mounting portion are respectively provided with mounting holes, the two ends of the connecting rod pin are respectively installed in the mounting holes, and the bearing sleeve is sleeved on the connecting rod pin between the left mounting portion and the right mounting portion, and the end sleeve of the connecting rod is sleeved
- the horizontal center line is the dividing line, and the weight difference between the vibration-free crankshaft connecting rod assembly portion of the internal combustion engine and
- the weight difference corresponds to 5n, 10n or 15n, respectively, and n is the power of a single cylinder corresponding to the vibration-free crankshaft connecting rod assembly of the internal combustion engine.
- the shape of the left crank is a circle, a rectangle, a square or a sector.
- the weight difference is proportional to the power of the cylinder in which the cylinder is located, when the cylinder When the power is increased, the corresponding weight difference is correspondingly increased.
- the weight difference just offsets the excess rotational inertia force acting on the link pin of the power stroke, and the remaining rotational inertia force is stored in the crankshaft to achieve the power stroke.
- FIG. 1 is a schematic structural view of a vibration-free crankshaft connecting rod assembly of an internal combustion engine according to the present invention
- FIG. 2 is a schematic view showing the inner surface of a left crank of a vibration-free crankshaft connecting rod assembly of the present invention.
- an internal combustion engine vibration-free crankshaft connecting rod assembly includes a left crank 1, a right crank 2, a link pin 3, a bearing 6, and a connecting rod 4.
- the left crank 1 and the right crank 2 are symmetrically arranged, and as shown by the broken lines in the figure, the outer surfaces of the left crank 1 and the right crank 2 are mounted with crankshafts whose shaft center lines are at the same horizontal line.
- the axis centerline coincides with the horizontal centerline of the left crank.
- the surface of the left crank 1 is divided into a left mounting portion 12 and a left weight portion 11 by a horizontal center line
- the right crank 2 is divided into a right mounting portion 22 and a right weight portion 21 by a horizontal center line
- the thickness of the right mounting portion 22 is smaller than Right weight portion 21.
- the opposite positions of the left mounting portion 12 and the right mounting portion 22 are provided with mounting holes, and the two ends of the link pin 3 are respectively mounted in the mounting holes, and the bearing sleeve is sleeved on the link pin 3 between the left mounting portion and the right mounting portion.
- One end of the connecting rod 4 is sleeved on the bearing.
- the weight of the vibration-free crankshaft connecting rod assembly weight portion (including the left weight portion 11 and the right weight portion 21) of the internal combustion engine is greater than the mounting portion (including the left mounting portion 12, the right mounting portion 22,
- the invention needs to symmetrically set the left crank and the right crank, but does not limit the shape of the left crank/right crank, that is, the left crank/right crank can be the currently common crank shape, such as a circle, a rectangle, a square, a fan, and the like. Since the same internal combustion engine vibration-free crankshaft connecting rod assembly only needs to determine the weight difference above and below the horizontal centerline, and the shape of the crank in the vibration-free crankshaft connecting rod assembly of the internal combustion engine is negligible, the different embodiments below are as shown in the figure. The circular crank shape shown in 2, the cranks of other different shapes are omitted.
- the working principle of the invention when the engine is started to work on fire, the piston generates a driving force to the connecting rod pin through the connecting rod, so that the crankshaft rotates and generates a rotating inertial force. Since the weight of the weight portion is larger than the weight of the mounting portion, the weight difference is just right. The excess rotational inertia force acting on the link pin is offset by the power stroke, and the excess rotational inertia force is stored in the crankshaft to achieve the dynamic balance of the power stroke, thereby eliminating the vibration phenomenon of the engine running.
- G1 The weight of the weight portion located below the horizontal center line in the vibration-free crankshaft connecting rod assembly of the internal combustion engine is defined as G1, and G1 includes the weights of the left weight portion 11 and the right weight portion 21, and the weight of the mounting portion above the horizontal center line Defined as G2, G2 includes the weights of the left mounting portion 12, the right mounting portion 22, the link pin 3, the bearing 6, and the link 4, and the weight difference between G1 and G2 is defined as G.
- the present invention is applicable not only to a single-cylinder engine but also to a multi-cylinder engine. When it is a multi-cylinder engine, it is only necessary to separately calculate the link assemblies located in a single cylinder.
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- 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
An internal combustion engine vibration-free crankshaft connecting rod assembly. A left crankshaft is symmetrical with a right crankshaft, the left crankshaft is divided into a left mounting portion and a left weight balance portion, a weight difference between the part of the crankshaft connecting rod assembly below a horizontal center line and the part of the crankshaft connecting rod assembly above the horizontal center line is G, G satisfies G=n*b, wherein n is cylinder power, the unit of which is kilowatts (kW); and b is between 5-15 g/kW. Because the weight balance portion is heavier than the mounting portion, vibration may be eliminated without a balance shaft, thereby saving energy and reducing costs.
Description
技术领域 Technical field
本发明涉及内燃机领域，特别涉及内燃机做功时消除振动的一种内燃机无振动曲轴连杆组件。 The invention relates to the field of internal combustion engines, and in particular to a vibration-free crankshaft connecting rod assembly for an internal combustion engine which eliminates vibration when the internal combustion engine is working.
背景技术 Background technique
目前，在设计内燃机曲轴连杆组件时，都是以动平衡为主要技术要求，也就是说成品曲轴连杆组件，不管做成什么形状，它的连杆销方向安装部的重量与对面配重体的重量是相等的，对曲轴进行动平衡测试是不跳动的，但是把曲轴安装在发动机上运转就会产生振动，发动机产生振动是因内燃机着火做工瞬间，活塞通过连杆对曲轴连杆销产生旋转推动力，使曲轴旋转，由于推动曲轴旋转的动能只作用在曲轴连杆销上，使得曲轴连杆销方面的旋转惯性力大于对面配重体的旋转惯性力，打破了原来曲轴的动平衡，因而产生了振动。
At present, when designing the crankshaft connecting rod assembly of internal combustion engine, the dynamic balance is the main technical requirement, that is to say, the finished crankshaft connecting rod assembly, regardless of the shape, the weight of the connecting portion of the connecting rod pin and the opposite weighting body The weight is equal. The dynamic balance test of the crankshaft is not beating. However, when the crankshaft is installed on the engine, the vibration will be generated. The vibration generated by the engine is caused by the moment when the internal combustion engine is on fire. The piston generates the crankshaft connecting rod pin through the connecting rod. The driving force is rotated to rotate the crankshaft. Since the kinetic energy of the crankshaft rotation acts only on the crankshaft connecting rod pin, the rotational inertia force of the crankshaft connecting rod pin is greater than the rotational inertia force of the opposite counterweight, which breaks the dynamic balance of the original crankshaft. Thus, vibration is generated.
为了减小发动机运转时的振动，提高驾乘的舒适性，通常会在曲轴箱内设置平衡轴机构，一般所见到发动机平衡轴机构是设置在发动机下部，油底壳中，包含平衡轴壳体、平衡轴、配重、驱动链条、齿轮等零件，其工作原理通常为曲轴带动链条，以此来驱动平衡轴系统，有时候一个平衡轴还不能满足要求，需要增加两个、甚至三个平衡轴才能达到预期的效果。该设置不但增加了成本，同时也使得整个发动机的内部结构变得复杂，增加了维修难度。
In order to reduce the vibration during engine operation and improve the ride comfort, a balance shaft mechanism is usually installed in the crankcase. Generally, the engine balance shaft mechanism is disposed in the lower part of the engine, and the balance case is included in the oil sump. Body, balance shaft, counterweight, drive chain, gear and other parts, the working principle is usually the crankshaft to drive the chain, in order to drive the balance shaft system, sometimes a balance shaft can not meet the requirements, need to add two or even three The balance shaft can achieve the desired results. This arrangement not only increases the cost, but also complicates the internal structure of the entire engine, increasing the difficulty of maintenance.
发明内容 Summary of the invention
本发明要解决的技术问题是提供一种内燃机无振动曲轴连杆组件，该曲轴连杆组件可在不用设置平衡轴的情况下消除发动机振动，从而降低生产成本，方便维修。
The technical problem to be solved by the present invention is to provide a vibration-free crankshaft connecting rod assembly for an internal combustion engine, which can eliminate engine vibration without setting a balance shaft, thereby reducing production cost and facilitating maintenance.
为了解决上述技术问题，本发明的技术方案为一种内燃机无振动曲轴连杆组件，包括左曲柄、右曲柄、连杆销、轴承、以及连杆。其中，左曲柄与右曲柄对称设置，左曲柄的表面通过水平中心线划分成左安装部和左配重部，而右曲柄通过水平中心线划分成右安装部和右配重部，而左安装部和右安装部相对的位置均设置有安装孔，连杆销两端分别安装于安装孔内，而轴承套于左安装部和右安装部之间的连杆销上，连杆的一端套于轴承上，以水平中心线为分界线，分界线以下的内燃机无振动曲轴连杆组件部分与分界线以上的内燃机无振动曲轴连杆组件部分的重量差为G，G满足G=n*b，其中，n为内燃机无振动曲轴连杆组件所对应单个气缸的功率，单位为千瓦；b为每千瓦功率取值范围，为5~15克。
In order to solve the above technical problem, the technical solution of the present invention is a vibration-free crankshaft connecting rod assembly for an internal combustion engine, including a left crank, a right crank, a link pin, a bearing, and a connecting rod. Wherein, the left crank and the right crank are symmetrically arranged, the surface of the left crank is divided into a left mounting portion and a left weight portion by a horizontal center line, and the right crank is divided into a right mounting portion and a right weight portion by a horizontal center line, and the left crank is installed The opposite positions of the portion and the right mounting portion are respectively provided with mounting holes, the two ends of the connecting rod pin are respectively installed in the mounting holes, and the bearing sleeve is sleeved on the connecting rod pin between the left mounting portion and the right mounting portion, and the end sleeve of the connecting rod is sleeved On the bearing, the horizontal center line is the dividing line, and the weight difference between the vibration-free crankshaft connecting rod assembly portion of the internal combustion engine and the vibration-free crankshaft connecting rod assembly portion below the boundary line is G, G satisfies G=n*b Where n is the power of a single cylinder corresponding to the vibration-free crankshaft connecting rod assembly of the internal combustion engine, and the unit is kilowatt; b is a range of power per kilowatt, which is 5-15 grams.
优选地，b的取值依次为5、10或15时，重量差依次对应为5n、10n或15n，n为内燃机无振动曲轴连杆组件所对应单个气缸的功率。
Preferably, when the value of b is 5, 10 or 15, the weight difference corresponds to 5n, 10n or 15n, respectively, and n is the power of a single cylinder corresponding to the vibration-free crankshaft connecting rod assembly of the internal combustion engine.
优选地，左曲柄的形状为圆形、长方形、正方形或扇形。 Preferably, the shape of the left crank is a circle, a rectangle, a square or a sector.
采用上述技术方案，由于增加水平中心线下方配重部的重量，使水平中心线下方配重部重于水平中心线上方的安装部，并且其重量差与所在气缸功率的大小成正比，当气缸功率加大时，其所对应的重量差对应增加，该重量差正好抵消做功冲程作用在连杆销上多余的旋转惯性力，并把剩余的旋转惯性力存于曲轴，达到了做功冲程的动平衡，从而可省去平衡轴，消除发动机运转的振动现象，而储存的旋转惯性力在膨胀、排气阶段释放出来，从而也能达到节能的目的，另外由于省略了平衡组件，降低了生产成本，简化了安装部件，降低维修的难度。
According to the above technical solution, since the weight of the weight portion below the horizontal center line is increased, the weight portion below the horizontal center line is heavier than the mounting portion above the horizontal center line, and the weight difference is proportional to the power of the cylinder in which the cylinder is located, when the cylinder When the power is increased, the corresponding weight difference is correspondingly increased. The weight difference just offsets the excess rotational inertia force acting on the link pin of the power stroke, and the remaining rotational inertia force is stored in the crankshaft to achieve the power stroke. Balance, so that the balance shaft can be omitted, the vibration phenomenon of the engine running can be eliminated, and the stored rotational inertia force is released during the expansion and exhaust phases, thereby achieving the purpose of energy saving, and the production cost is reduced by omitting the balance component. It simplifies the installation of parts and reduces the difficulty of maintenance.
附图说明 DRAWINGS
图1为本发明一种内燃机无振动曲轴连杆组件的结构示意图； 1 is a schematic structural view of a vibration-free crankshaft connecting rod assembly of an internal combustion engine according to the present invention;
图2为本发明一种内燃机无振动曲轴连杆组件的左曲柄的内表面示意图。 2 is a schematic view showing the inner surface of a left crank of a vibration-free crankshaft connecting rod assembly of the present invention.
图中，1-左曲柄、11-左配重部、12-左安装部、2-右曲柄、21-右配重部、22-右安装部、3-连杆销、4-连杆、5-水平中心线、6-轴承。
In the figure, 1-left crank, 11-left weight, 12-left mounting, 2-right crank, 21-right weight, 22-right mounting, 3-link pin, 4-link, 5-horizontal centerline, 6-bearing.
具体实施方式 detailed description
下面结合附图对本发明的具体实施方式作进一步说明。在此需要说明的是，对于这些实施方式的说明用于帮助理解本发明，但并不构成对本发明的限定。此外，下面所描述的本发明各个实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互组合。
The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It is to be noted that the description of the embodiments is intended to facilitate the understanding of the invention, but is not intended to limit the invention. Further, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.
如图1所示，一种内燃机无振动曲轴连杆组件，包括左曲柄1、右曲柄2、连杆销3、轴承6以及连杆4。其中，左曲柄1与右曲柄2对称设置，如图中虚线所示，左曲柄1和右曲柄2的外表面均安装有轴中心线处于同一水平线的曲轴。轴中心线与左曲柄的水平中心线重合。左曲柄1的表面通过水平中心线划分成左安装部12和左配重部11，右曲柄2通过水平中心线划分成右安装部22和右配重部21，而右安装部22的厚度小于右配重部21。左安装部12和右安装部22相对的位置均设置有安装孔，连杆销3两端分别安装于安装孔内，而轴承套于左安装部和右安装部之间的连杆销3上，连杆4的一端套于轴承上。而以水平中心线为分界线，内燃机无振动曲轴连杆组件配重部（包括左配重部11和右配重部21）的重量大于安装部（包括左安装部12、右安装部22、连杆销3、轴承6以及连杆4）的重量，其重量差为G=n*b，其中，n为内燃机无振动曲轴连杆组件所对应单个气缸的功率，单位为千瓦；b为每千瓦功率取值范围，为5~15克。
As shown in FIG. 1, an internal combustion engine vibration-free crankshaft connecting rod assembly includes a left crank 1, a right crank 2, a link pin 3, a bearing 6, and a connecting rod 4. Wherein, the left crank 1 and the right crank 2 are symmetrically arranged, and as shown by the broken lines in the figure, the outer surfaces of the left crank 1 and the right crank 2 are mounted with crankshafts whose shaft center lines are at the same horizontal line. The axis centerline coincides with the horizontal centerline of the left crank. The surface of the left crank 1 is divided into a left mounting portion 12 and a left weight portion 11 by a horizontal center line, and the right crank 2 is divided into a right mounting portion 22 and a right weight portion 21 by a horizontal center line, and the thickness of the right mounting portion 22 is smaller than Right weight portion 21. The opposite positions of the left mounting portion 12 and the right mounting portion 22 are provided with mounting holes, and the two ends of the link pin 3 are respectively mounted in the mounting holes, and the bearing sleeve is sleeved on the link pin 3 between the left mounting portion and the right mounting portion. One end of the connecting rod 4 is sleeved on the bearing. With the horizontal center line as a dividing line, the weight of the vibration-free crankshaft connecting rod assembly weight portion (including the left weight portion 11 and the right weight portion 21) of the internal combustion engine is greater than the mounting portion (including the left mounting portion 12, the right mounting portion 22, The weight of the connecting rod pin 3, the bearing 6 and the connecting rod 4) is G=n*b, where n is the power of a single cylinder corresponding to the vibration-free crankshaft connecting rod assembly of the internal combustion engine, and the unit is kilowatt; b is per The kilowatt power range is 5 to 15 grams.
本发明需对左曲柄与右曲柄进行对称设置，但并没有限制左曲柄/右曲柄的形状，即左曲柄/右曲柄可为目前通用的曲柄形状，如圆形、长方形、正方形、扇形等形状,由于同一个内燃机无振动曲轴连杆组件中只需确定水平中心线上方和下方的重量差，而内燃机无振动曲轴连杆组件中曲柄的形状可忽略，因此下方的不同实施例均采用如图2所示的圆形曲柄形状，其他不同形状的曲柄省略。
The invention needs to symmetrically set the left crank and the right crank, but does not limit the shape of the left crank/right crank, that is, the left crank/right crank can be the currently common crank shape, such as a circle, a rectangle, a square, a fan, and the like. Since the same internal combustion engine vibration-free crankshaft connecting rod assembly only needs to determine the weight difference above and below the horizontal centerline, and the shape of the crank in the vibration-free crankshaft connecting rod assembly of the internal combustion engine is negligible, the different embodiments below are as shown in the figure. The circular crank shape shown in 2, the cranks of other different shapes are omitted.
本发明的工作原理：启动发动机着火做功瞬间，活塞通过连杆对连杆销产生推动力，使曲轴旋转，并产生旋转惯性力，由于配重部的重量大于安装部的重量，这个重量差正好抵消做功冲程作用在连杆销上多余的旋转惯性力，并把多余的旋转惯性力存于曲轴，达到了做功冲程的动平衡，从而消除了发动机运转的振动现象。
The working principle of the invention: when the engine is started to work on fire, the piston generates a driving force to the connecting rod pin through the connecting rod, so that the crankshaft rotates and generates a rotating inertial force. Since the weight of the weight portion is larger than the weight of the mounting portion, the weight difference is just right. The excess rotational inertia force acting on the link pin is offset by the power stroke, and the excess rotational inertia force is stored in the crankshaft to achieve the dynamic balance of the power stroke, thereby eliminating the vibration phenomenon of the engine running.
下面将以具体的实施例来说明： The following will be explained in a specific embodiment:
将内燃机无振动曲轴连杆组件中位于水平中心线下方的配重部的重量定义为G1，G1包括左配重部11和右配重部21的重量，而水平中心线上方的安装部的重量定义为G2，G2包括左安装部12、右安装部22、连杆销3、轴承6以及连杆4的重量，而G1与G2的重量差定义为G。
The weight of the weight portion located below the horizontal center line in the vibration-free crankshaft connecting rod assembly of the internal combustion engine is defined as G1, and G1 includes the weights of the left weight portion 11 and the right weight portion 21, and the weight of the mounting portion above the horizontal center line Defined as G2, G2 includes the weights of the left mounting portion 12, the right mounting portion 22, the link pin 3, the bearing 6, and the link 4, and the weight difference between G1 and G2 is defined as G.
实施例1 Example 1
当发动机为单缸时，气缸的功率为n为5千瓦时，根据G=n*b，b按每千瓦时5克算，则G=5*5克，即G1-G2=G=25克。
When the engine is a single cylinder, the power of the cylinder is n kWh, according to G=n*b, b is 5 gram per kWh, then G=5*5 gram, ie G1-G2=G=25 gram .
实施例2 Example 2
当发动机为单缸时，气缸的功率为n为5千瓦时，根据G=n*b，b按每千瓦时10克算，则G=5*10克，即G1-G2=G=50克。
When the engine is a single cylinder, the power of the cylinder is n kWh, according to G=n*b, b is 10 kW per kWh, then G=5*10 gram, ie G1-G2=G=50 g .
实施例3 Example 3
当发动机为单缸时，气缸的功率为n为5千瓦时，根据G=n*b，b按每千瓦时15克算，则G=5*15克，即G1-G2=G=75克。
When the engine is a single cylinder, the power of the cylinder is n kWh, according to G=n*b, b is 15 kWh per kWh, then G=5*15 gram, ie G1-G2=G=75 g .
实施例4 Example 4
当发动机为单缸时，气缸的功率为n为10千瓦时，根据G=n*b，b按每千瓦时15克算，则G=10*15克，即G1-G2=G=150克。
When the engine is a single cylinder, the power of the cylinder is n kWh, according to G=n*b, b is 15 kWh per kWh, then G=10*15g, ie G1-G2=G=150g .
本发明不但适应于单缸发动机，也适用于多缸发动机，当为多缸发动机时，只需将位于单个气缸中的连杆组件单独计算即可。
The present invention is applicable not only to a single-cylinder engine but also to a multi-cylinder engine. When it is a multi-cylinder engine, it is only necessary to separately calculate the link assemblies located in a single cylinder.
上述实施例1~4中，根据不同发动机的结构特点和性能要求设定不同的重量差，经试验均可达到设置平衡轴同类发动机的效果，使采用该曲轴连杆组件装配的发动机不产生振动，特别是当发动机安装于机车上后，机车启动后能平稳行使。
In the above embodiments 1 to 4, different weight differences are set according to the structural characteristics and performance requirements of different engines, and the effects of setting the balance shaft with the same engine can be achieved through experiments, so that the engine assembled by the crankshaft connecting rod assembly does not generate vibration. Especially when the engine is installed on the locomotive, the locomotive can be smoothly exercised after starting.
以上结合附图对本发明的实施方式作了详细说明，但本发明不限于所描述的实施方式。对于本领域的技术人员而言，在不脱离本发明原理和精神的情况下，对这些实施方式进行多种变化、修改、替换和变型，仍落入本发明的保护范围内。
The embodiments of the present invention have been described in detail above with reference to the drawings, but the invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and variations of the embodiments are possible without departing from the spirit and scope of the invention.
Claims (3)
- 一种内燃机无振动曲轴连杆组件，包括左曲柄、右曲柄、连杆销、轴承、以及连杆，所述左曲柄与右曲柄对称设置，其特征在于：所述左曲柄的表面通过水平中心线划分成左安装部和左配重部，所述右曲柄通过水平中心线划分成右安装部和右配重部，所述左安装部和右安装部相对的位置均设置有安装孔，所述连杆销两端分别安装于安装孔内，所述轴承套于左安装部和右安装部之间的连杆销上，所述连杆的一端套于轴承上，以水平中心线为分界线，分界线以下的所述内燃机无振动曲轴连杆组件部分与分界线以上的内燃机无振动曲轴连杆组件部分的重量差为G，G满足G=n*b，其中，n为内燃机无振动曲轴连杆组件所对应单个气缸的功率，单位为千瓦；b为每千瓦功率的取值范围，为5~15克。 A non-vibrating crankshaft connecting rod assembly for an internal combustion engine, comprising a left crank, a right crank, a connecting rod pin, a bearing, and a connecting rod, wherein the left crank is symmetrically disposed with the right crank, wherein the surface of the left crank passes through a horizontal center The line is divided into a left mounting portion and a left weight portion, and the right crank is divided into a right mounting portion and a right weight portion by a horizontal center line, and the mounting positions are respectively provided at positions opposite to the left mounting portion and the right mounting portion. The two ends of the connecting rod pin are respectively mounted in the mounting hole, and the bearing sleeve is sleeved on the connecting rod pin between the left mounting portion and the right mounting portion, and one end of the connecting rod is sleeved on the bearing, and is divided by a horizontal center line. The difference between the weight of the vibration-free crankshaft connecting rod assembly of the internal combustion engine and the vibration-free crankshaft connecting rod assembly of the internal combustion engine and the portion below the boundary line is G, G satisfies G=n*b, where n is no vibration of the internal combustion engine The power of a single cylinder corresponding to the crankshaft connecting rod assembly is in kilowatts; b is the range of power per kilowatt, which is 5-15 grams.
- 根据权利要求1所述的内燃机无振动曲轴连杆组件，其特征在于：所述的b的取值依次为5、10或15时，重量差依次对应为5n、10n或15n，n为内燃机无振动曲轴连杆组件所对应单个气缸的功率。The vibration-free crankshaft connecting rod assembly according to claim 1, wherein when the value of b is 5, 10 or 15, the weight difference corresponds to 5n, 10n or 15n, and n is an internal combustion engine. Vibrating the power of a single cylinder corresponding to the crankshaft linkage assembly.
- 根据权利要求1或2所述的内燃机无振动曲轴连杆组件，其特征在于：所述左曲柄的形状为圆形、长方形、正方形或扇形。The vibration-free crankshaft connecting rod assembly according to claim 1 or 2, wherein the shape of the left crank is circular, rectangular, square or fan-shaped.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201680000420.7A CN107454929A (en) | 2016-04-22 | 2016-04-22 | A kind of internal combustion engine crankshaft-link rod component without friction |
| PCT/CN2016/079977 WO2017181398A1 (en) | 2016-04-22 | 2016-04-22 | Internal combustion engine vibration-free crankshaft connecting rod assembly |
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 |
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| WO2017181398A1 true WO2017181398A1 (en) | 2017-10-26 |
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|---|---|---|---|
| PCT/CN2016/079977 WO2017181398A1 (en) | 2016-04-22 | 2016-04-22 | Internal combustion engine vibration-free crankshaft connecting rod assembly |
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| WO (1) | WO2017181398A1 (en) |
Citations (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 |
| CN103185103A (en) * | 2012-01-03 | 2013-07-03 | 福特环球技术公司 | A method to balance mass moments of a drive unit and drive unit for performance of 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
Patent Citations (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 |
| CN103185103A (en) * | 2012-01-03 | 2013-07-03 | 福特环球技术公司 | A method to balance mass moments of a drive unit and drive unit for performance of 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 |
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