CN101943242B - Dynamic damper and diesel engine where dynamic damper is mounted - Google Patents
Dynamic damper and diesel engine where dynamic damper is mounted Download PDFInfo
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- CN101943242B CN101943242B CN2010102754109A CN201010275410A CN101943242B CN 101943242 B CN101943242 B CN 101943242B CN 2010102754109 A CN2010102754109 A CN 2010102754109A CN 201010275410 A CN201010275410 A CN 201010275410A CN 101943242 B CN101943242 B CN 101943242B
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- 230000001629 suppression Effects 0.000 claims abstract description 35
- 230000008093 supporting effect Effects 0.000 claims description 64
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 description 20
- 230000001681 protective effect Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
- F16F7/116—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on metal springs
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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
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
A dynamic damper capable of reducing vibration of a support where an exhaust collecting tube of a diesel engine is mounted. The dynamic damper has a tubular case (2), a guide bar (5) provided in the case (2), weights (9a) for vibration suppression slidably fitted on the guide bar (5), a pair of coil springs (10) arranged on both sides of the weights (9a), a pair of guide bar support bodies (3a, 3b) arranged at both ends of the case (2), a weight (9b) for adjusting natural vibration frequency, provided between each of the guide bar support bodies (3a, 3b) and each of the coil springs (10), fasteners (6) screwed to both ends of the guide bar (5), and support members (22, 23) arranged on side faces of the case (2).
Description
Technical field
The present invention relates to dynamic damper and be provided with the diesel engine of above-mentioned dynamic damper.
Background technique
In recent years, cheap and safeguard the easy aspect of spot check from fuel cost, using rated speed 100～200rpm for example and output number is that the power generating equipment of the large-scale low speed 2 circulation diesel engines about several thousand kW～50,000 kW receives publicity.
But the intake manifold that diesel generation equipment is used is arranged on the top of the exhaust side of main frame (diesel engine), vibrates than main frame the earth along continuous straight runs synchronously with the vibration of main frame.The situation that therefore, the damage of the supporting bracket that the supporting intake manifold takes place is arranged.
On the other hand, above-mentioned diesel engine is owing in order to safeguard that spot check needs the people to step on the top of diesel engine, uses platform so be provided with the spot check of having laid grid in the beam side of diesel engine.But, since spot check with the vibration of platform and diesel engine synchronous and up-down vibration, think that fatigue is the be full of cracks of reason so understand on the weld part of platform at spot check.
As the vibration isolation method of large-scale low-speed diesel engine, former studies the change cylinder fire ignition sequence or use the method (for example with reference to patent documentation 1) of various dampers.But, in order to change the fire ignition sequence of cylinder, not only in its research, need a lot of times, can not find the situation of suitable fire ignition sequence in addition.In addition, the damper of record in the patent documentation 1 since decay with in adopted the campaign-styled weight of oscillator, so, be unaccommodated for pitch though be effectively for yaw.
In addition, small-sized dynamic damper uses in the power-transmission system that automobile is used, bridge structure thing etc., but problem is more.Leak of liquid for example,, in housing, contains viscous body, so might take place though the dynamic damper of patent documentation 2 is compact.In addition, the damping apparatus of patent documentation 3 is recorded and narrated in order to change the interval that natural frequency can change parts, but its structure is indefinite.And then the production method of the dynamic damper of patent documentation 4 is recorded and narrated to changing outer tube (housing) in order to regulate natural frequency, but in generating with in the generator etc., because the installation position is limited, so that boundary dimension becomes is not preferred greatly.
Patent documentation 1: japanese kokai publication hei 5-187314 communique
Patent documentation 2: real the opening of Japan put down the 6-4445 communique
Patent documentation 3: TOHKEMY 2003-28237 communique
Patent documentation 4: TOHKEMY 2004-150544 communique
Summary of the invention
The present invention makes for the problem of eliminating above-mentioned that kind, the 1st purpose provide a kind of diesel engine that can reduce to carry generating usefulness intake manifold supporting bracket vibration dynamic damper and a kind of diesel engine that is provided with this dynamic damper is provided.
In addition, the 2nd purpose of the present invention provides spot check in a kind of diesel engine that can reduce to be arranged on generating usefulness with vertical dynamic damper of the vibration of platform and a kind of diesel engine that is provided with this vertical dynamic damper is provided.
The dynamic damper of relevant technologies scheme 1 described invention is by the shell of tubular, be located at guide rod in this shell, be entrenched in weight that a plurality of vibration suppressions on this guide rod use sliding freely, a pair of helical spring of the both sides that are configured in this weight, be located at a pair of guide rod supporting mass on the two ends of above-mentioned shell, be located at that natural frequency between this guide rod supporting mass and the above-mentioned helical spring is regulated the fastening piece on the weight of usefulness, the two ends that spiral shell is contained in above-mentioned guide rod and the support unit that is located on the side of above-mentioned shell constitutes.
The dynamic damper of relevant technologies scheme 2 described inventions in technological scheme 1, is characterized in that, guide rod supporting mass spiral shell is contained on the end of shell.
The dynamic damper of relevant technologies scheme 3 described inventions in technological scheme 1, is characterized in that, on being positioned at than guide rod supporting mass guide rod front end in the outer part, the screw section is set, and the spiral shell dress has the fastening piece of foot or lower hem on this screw section.
The dynamic damper of relevant technologies scheme 4 described inventions in technological scheme 3, is characterized in that, on the guide rod supporting mass, is provided with protective cover, the fastening piece on front end through this protective cover protection guide rod and the front end that spiral shell is contained in this guide rod.
The dynamic damper of relevant technologies scheme 5 described inventions is by the shell of tubular, be located at guide rod in this shell, be entrenched in weight that a plurality of vibration suppressions on this guide rod use sliding freely, a pair of helical spring of the both sides that are configured in this weight, be located at a pair of guide rod supporting mass on the two ends of above-mentioned shell, be located at that natural frequency between this guide rod supporting mass and the above-mentioned helical spring is regulated the fastening piece on the weight of usefulness, the two ends that spiral shell is contained in above-mentioned guide rod and the upright base part of establishing usefulness that is located on of above-mentioned guide rod supporting mass constitutes.
The dynamic damper of relevant technologies scheme 6 described inventions; In technological scheme 1 or 5, it is characterized in that, be provided with the spring carrier adjacent to weight; And on this spring carrier, be provided with to the outstanding measurement pin of the radial direction of above-mentioned spring carrier; And then, on shell, be provided with the slotted hole of measuring the outstanding usefulness of pin along its length.
The dynamic damper of relevant technologies scheme 7 described inventions in technological scheme 1 or 5, is characterized in that, constitutes vibration system through weight and helical spring.
The dynamic damper of relevant technologies scheme 8 described inventions in technological scheme 1 or 5, is characterized in that, on weight, is provided with the guide rod through hole, and is provided with linear sleeve along this guide rod through hole.
The diesel engine of relevant technologies scheme 9 described inventions is characterized in that, technological scheme 1 described dynamic damper is installed on the pallet of the intake manifold that is equipped with above-mentioned diesel engine towards the direction of the crankshaft of transversal diesel engine.
The diesel engine of relevant technologies scheme 10 described inventions is characterized in that, the spot check that technological scheme 4 described dynamic dampers is installed in up be arranged on the diesel engine is with on platform or the vertical frame of supporting spot check with platform.
The dynamic damper of relevant technologies scheme 1; By the shell of tubular, be located at guide rod in this shell, be entrenched in weight that a plurality of vibration suppressions on this guide rod use sliding freely, a pair of helical spring of the both sides that are configured in this weight, be located at a pair of guide rod supporting mass on the two ends of above-mentioned shell, be located at that natural frequency between this guide rod supporting mass and the above-mentioned helical spring is regulated the fastening piece on the weight of usefulness, the two ends that spiral shell is contained in above-mentioned guide rod and the support unit that is located on the side of above-mentioned shell constitutes; So; Through the configuration of change weight, the natural frequency that can easily regulate dynamic damper.And, even the configuration of change weight does not change in the size self of dynamic damper, so need not change helical spring yet.In addition, this dynamic damper need not be used for making the power of weight action, does not spend operating cost.And then this dynamic damper is easier to so handle owing to be small-sized light.On the other hand; If this dynamic damper flatly is arranged on the generating that is equipped with large-scale and low speed rear and front end with the pallet of the set outlet pipe of diesel engine; Then the vibration of the weight used of the vibration suppression in the vibration of pallet and the damper is cancelled out each other, and can alleviate the vibration of the pallet of the set outlet pipe that is equipped with diesel engine.
The dynamic damper of relevant technologies scheme 2; In technological scheme 1; Guide rod supporting mass spiral shell is contained on the end of shell; Even so guide rod damages, guide rod supporting mass, natural frequency are regulated with weight, helical spring etc. and also can not flown out outside the shell, can improve the Security and the reliability of dynamic damper.
The dynamic damper of relevant technologies scheme 3; In technological scheme 1; On being positioned at than guide rod supporting mass guide rod front end in the outer part, the screw section is set, the spiral shell dress has the fastening piece of foot or lower hem on this screw section, so can prevent the damage or the damage of the screw section of guide rod.
The dynamic damper of relevant technologies scheme 4; In technological scheme 3; On the guide rod supporting mass, be provided with protective cover; Fastening piece on front end through this protective cover protection guide rod and the front end that spiral shell is contained in this guide rod is so can prevent the damage or the damage of the fastening piece on the front end of guide rod or the front end that spiral shell is contained in guide rod.
The dynamic damper of relevant technologies scheme 5; By the shell of tubular, be located at guide rod in this shell, be entrenched in weight that a plurality of vibration suppressions on this guide rod use sliding freely, a pair of helical spring of the both sides that are configured in this weight, be located at a pair of guide rod supporting mass on the two ends of above-mentioned shell, be located at that natural frequency between this guide rod supporting mass and the above-mentioned helical spring is regulated the fastening piece on the weight of usefulness, the two ends that spiral shell is contained in above-mentioned guide rod and the upright base part of establishing usefulness that is located on of above-mentioned guide rod supporting mass constitutes; So; Through the configuration of change weight, the natural frequency that can easily regulate dynamic damper.And, even the configuration of change weight does not change in the size self of dynamic damper, so need not change helical spring yet.In addition, this dynamic damper need not be used for making the power of weight action, does not spend operating cost.And then this dynamic damper is easier to so handle owing to be small-sized light.
On the other hand; If this dynamic damper is arranged on be arranged at large-scale and low speed generating with the spot check on the diesel engine with on platform or the vertical frame of supporting spot check with platform; Then spot check is passed to vibration suppression with the vibration of platform via helical spring and uses weight, and the weight up-down vibration is used in vibration suppression.At this moment; Since spot check with platform or supporting spot check with the vibration of the vertical frame of platform and vibration suppression with the vibration of weight between generation time poor; So mutual vibration is cancelled, can alleviate spot check with platform or supporting spot check with the vibration of the above-below direction of the vertical frame of platform.
The dynamic damper of relevant technologies scheme 6; In technological scheme 1 or 5, be provided with the spring carrier adjacent to weight, and on this spring carrier, be provided with to the outstanding measurement pin of the radial direction of above-mentioned spring carrier; And then; On shell, be provided with the slotted hole of measuring the outstanding usefulness of pin along its length, so can easily confirm or keep watch on the working state of weight from the outside.
The dynamic damper of relevant technologies scheme 7 in technological scheme 1 or 5, constitutes vibration system through weight and helical spring, so the setting of the natural frequency of dynamic damper is easier to.
The dynamic damper of relevant technologies scheme 8; In technological scheme 1 or 5, on weight, be provided with the guide rod through hole, and be provided with linear sleeve along this guide rod through hole; So not only need be to the oil supplying device of weight, and do not need oil supplying device safeguard spot check etc.
The diesel engine of relevant technologies scheme 9; Technological scheme 1 described dynamic damper is installed on the pallet of the intake manifold that is equipped with above-mentioned diesel engine towards the direction of the crankshaft of transversal diesel engine; So the vibration of the weight that the vibration suppression in the vibration of the direction of the transversal crankshaft of pallet and the damper is used is cancelled out each other, can alleviate the vibration of substantially horizontal of the pallet of the intake manifold that is equipped with diesel engine.Therefore, need not make pallet is firm especially structure, is both economical.
The diesel engine of relevant technologies scheme 10; The spot check that technological scheme 4 described dynamic dampers is installed in up be arranged on the diesel engine is with on platform or the vertical frame of supporting spot check with platform; So spot check is cancelled out each other with the vibration of the weight that platform or supporting spot check are used with the vibration and the vibration suppression in the damper of the above-below direction of the vertical frame of platform, can alleviate spot check with platform or support the vibration of spot check with the above-below direction of the vertical frame of platform.Therefore, need not make the supporting spot check use the Supporting fixture of platform is firm especially structure, is both economical.
Description of drawings
Fig. 1 is the sectional view of the 1st mode of execution of relevant dynamic damper of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the model of vibration of damper.
Fig. 4 is the fixed frequency statement on changes figure of damper.
Fig. 5 is the fixed frequency statement on changes figure of damper.
Fig. 6 is the front view that is provided with the diesel engine of dynamic damper.
Fig. 7 is the side view that is provided with the diesel engine of dynamic damper.
Fig. 8 is the B-B sectional view of Fig. 7.
Fig. 9 is the enlarged view of part of the reference character D of Fig. 6.
Figure 10 is the E-E sectional view of Fig. 9.
Figure 11 is the sectional view of the 2nd mode of execution of relevant dynamic damper of the present invention.
Figure 12 be Figure 11 want portion's amplification view.
Figure 13 is the F-F sectional view of Figure 11.
Figure 14 is the front view that is provided with the diesel engine of relevant vertical dynamic damper of the present invention.
Figure 15 is the longitudinal section of the 3rd mode of execution of relevant dynamic damper of the present invention.
Figure 16 is the worm's eye view of relevant dynamic damper of the present invention.
Figure 17 be relevant dynamic damper of the present invention want portion's amplification view.
Figure 18 is the X-X sectional view of Figure 17.
Figure 19 be Figure 17 arrow Y direction to view.
Figure 20 is the adjusting explanatory drawing about the natural frequency of the 3rd mode of execution of dynamic damper of the present invention.
Figure 21 is the Z-Z sectional view of Figure 14.
Description of reference numerals
The shell of 2 tubulars
3a, 3b guide rod supporting mass
5 guide rods
6 fastening pieces
The weight that the 9a vibration suppression is used
The 9b natural frequency is regulated the weight of usefulness
10 helical springs
22,23 support units
Embodiment
Below, utilize description of drawings mode of execution of the present invention.
(1) the 1st mode of execution
As shown in Figure 1, horizontal dynamic damper 1 has the shell cylindraceous 2 as dampener body, the guide rod supporting mass 3a of chimeric cap shape on the one of which end, and on the other end chimeric identical shaped guide rod supporting mass 3b.These guide rod supporting masses 3a, the 3b heart therein have and are used for the through hole 4 of break-through guide rod 5.
In addition, above-mentioned guide rod 5 will be in weight 9a, 9b, helical spring 10 and spring carrier 11a, 11b in the shell 2 and go here and there cover. Weight 9a, 9b are the diameter steely plectanes littler than the internal diameter of shell 2, and the heart has the through hole 12 that is used for making guide rod 5 perforations therein.
Above-mentioned weight 9a is the weight that vibration suppression is used, and weight 9b is that the thin natural frequency of weight 9a that the wall ratio vibration suppression is used is regulated the weight of usefulness.And, on the middle body of guide rod 5, be provided with weight 9a and a plurality of (for example 4) natural frequency that a plurality of (for example being 5) vibration suppression uses and regulate the weight 9b of usefulness.
In addition, dispose a pair of helical spring 10,10 in the outside of above-mentioned weight group.These helical springs 10,10 have the through hole 13 that is used for connecting guide rod 5 respectively at the center, and a pair of spring carrier 11a, 11b with lip part 14 support.
And then, in the left side of shell 2, make a plurality of (for example 3) natural frequency regulate weight 9b standby between guide rod supporting mass 3a and the 1st spring carrier 11a of usefulness.In addition, on the right side of shell 2, make for example weight 9b standby between the 2nd spring carrier 11b and guide rod supporting mass 3b of 1 natural frequency adjusting usefulness.
In addition, the weight 9a that vibration suppression is used is provided with linear sleeve 15 along the through hole that is located at its central part 12, does not need the supply of lubricant oil.In addition, the weight 9b of natural frequency adjusting usefulness is provided with spacer element 16 cylindraceous along through hole 12.
The helical spring 10,10 of the pairing left and right of having explained will be entrenched in weight 9a and 9b on the guide rod 5 to the opposed direction application of force, constitute vibration system 20 through the helical spring 10,10 of pairing left and right and weight 9a and the 9b that is folded between it.
And then, on the one side (back side) of the outside of the one side (exterior edge face) of the weight 9a that is positioned at right ends, weight 9b and spring carrier 11a, 11b, be provided with a plurality of pin-and-holes 17 with concentric shape.And, connection pin 18 is installed in these pin-and-holes 17, (weight 9a, weight 9b, spring carrier 11a, spring carrier 11b) is bonded to each other with adjacent parts.
And then, the measurement pin 19 of spiral shell dress radial direction on adjacent to the 1st spring carrier 11a of the weight 9b that constitutes vibration system 20, and on above-mentioned shell 2, be provided with the slotted hole 21 of measuring the outstanding usefulness of pin.
As shown in Figure 2, above-mentioned shell 2 is installed on the support plate 23 through a plurality of carriages 22.In addition, this support plate 23 is installed on the fixed plate 25 via intermediate plate 24.
In addition, shell 2 is not limited to cylindric, also can the side's of being tubular.But, under the situation of the side's of the being shaped as tubular that makes shell 2, can weight 9a, 9b also be cooperated the shape of shell 2 and do squarely.In addition, under the situation on the equipment of the high temperature such as intake manifold that are installed in diesel engine,, need thermal baffle to be installed or radiation hole (not shown) is set on shell 2 in order to prevent to become high temperature.
Here, under the situation of considering the model of vibration that Fig. 3 is such, the natural frequency f of dynamic damper can use following (1) formula to represent.
That is,
In addition,
M: the quality that is equivalent to the intake manifold of diesel engine
K: the spring constant of the pallet of intake manifold
M: the quality that is equivalent to the vibration system of dynamic damper
K: the spring constant that is equivalent to the vibration system of dynamic damper
Thereby, according to the present invention,, can easily change the natural frequency f of dynamic damper 1 through the quantity that the natural frequency that increases and decreases the vibration system 20 that constitutes dynamic damper 1 is regulated the weight 9b of usefulness.
Promptly; As shown in Figure 4; The quality m that alleviates Vibration Suppression System 20 if will constitute that the natural frequency of the vibration system 20 of dynamic damper 1 regulates that the weight 9b of usefulness moves to the standby position on the right side that is in shell 2 as arrow a then can improve the natural frequency f of dynamic damper 1.
On the other hand; As shown in Figure 5; If will as arrow b and c, move into place the quality m that increases vibration system 20 in the vibration system 20 of the central part of shell 2, then can reduce the natural frequency f of dynamic damper 1 at the weight 9b that the natural frequency of the standby position standby of the left and right sides of shell 2 is regulated usefulness.
In addition, according to the present invention, owing to just in shell 2, move the weight 9b that natural frequency is regulated usefulness, so the size constancy of dynamic damper 1.
Then, to the generating of large-scale and low speed being described with the situation that the intake manifold of diesel engine carries out vibrationproof through above-mentioned dynamic damper.
Fig. 6 representes that rated speed is that 100～200rpm, output number are the upper section of the diesel engine of the diesel generation equipment about several thousand kW～50,000 kW, and the intake manifold 31 of the diesel engine 30 of this large-scale and low speed is arranged on the pallet 50 of the exhaust side of being located at diesel engine 30.This pallet 50 is as shown in Figure 8, is provided with abreast with the crankshaft of diesel engine 30.This crankshaft is set to, and makes it connect the paper of Fig. 6.
The exhaust receiver 32 that is located in the pallet 50 is common with respect to a plurality of (for example 8～12) cylinder 33a～33l, makes from the pressure difference equalization between the exhaust pulses of a plurality of cylinder 33a～33l discharge.Exhaust by exhaust receiver 32 equalizations is carried to pressure-increasing machine 34, and pressure-increasing machine 34 is supplied with ozone to ventilation receiver (not shown).
Pressure-increasing machine 34 is as shown in Figure 7, is made up of gas access housing 35, whirlpool housing 36 and baffler 37 etc.Carried to the intake manifold of having explained 31 through piping 38 from the exhaust that pressure-increasing machine 34 is discharged.
This pallet 50 is like Fig. 7 and shown in Figure 8, by a plurality of pillars 52 of the rectangular top board 51 that carries the intake manifold 31 of putting diesel engine 30, top support plate 51, be located at the 1st diagonal brace (muscle friendship) 53 between top board 51 and the pillar 52 and the 2nd diagonal brace 54 that is located at obliquely between diesel engine 30 and the pillar 52 obliquely and form.
In addition; Above-mentioned top board 51 is as shown in Figure 8; Form rectangular-shaped, by a plurality of (for example two piece) beam 55 parallel with the crankshaft of diesel engine 30, and a plurality of (for example 6) crossbeams 56 of the direction of the crankshaft quadrature of diesel engine 30 and be located at beam 55 obliquely and crossbeam 56 between the 3rd diagonal brace 57 form.
And,, above-mentioned dynamic damper 1 respectively laterally, promptly flatly is arranged on the rear and front end of top board 51 towards the direction with crankshaft (not shown) quadrature of diesel engine 30 like Fig. 6～shown in Figure 8.If illustrate in greater detail, then with above-mentioned dynamic damper 1 as Fig. 6～shown in Figure 8, the direction of and edge parallel with above-mentioned crossbeam 56 and crankshaft (not shown) quadrature of diesel engine 30 is located on the exterior edge face of crossbeam 56 of the rear and front end that is in top board 51.This dynamic damper 1 is shown in figure 10, on the crossbeam 56 of the top board 51 of pallet 50 through being welded with fixed plate 25.
And; If the set outlet pipe 31 of diesel engine 30 and pallet 50 cause the vibration of H type (pallet vibrates with cophasing to direction of vibration) or X type (pallet vibrates with antiphase to direction of vibration); Then the shell 2 of dynamic damper 1 and guide rod 5 with pallet 50 to the direction vibration of crankshaft (not shown) quadrature of diesel engine 30; And the Vibration Suppression System 20 of this vibration passive attitude damper 1 absorbs, so can alleviate intake manifold 31 and the H type of pallet 50 or the vibration of X type of diesel engine 30.
(2) the 2nd mode of executions
Then, the 2nd mode of execution is described.But, to be formed in the 1st mode of execution in the identical parts of parts of dynamic damper 1 of the horizontal type explained give identical reference character, omit detailed explanation.
The 2nd dynamic damper 1 is shown in figure 12, and guide rod supporting mass 3b spiral shell is contained on the end of shell 2.That is, on the outer screw section on the outer circumferential face of being located at shell 2 41, screwing togather the female thread portion 42 of the inboard of the lower hem 28 that is located at guide rod supporting mass 3b.
In addition, only on being positioned at than guide rod supporting mass 3b guide rod front end in the outer part, be provided with screw section 6a, fastening piece 27 spiral shells that will have foot or lower hem 26 are contained on the 6a of this screw section.And, will be contained in the outside of this fastening piece 27 as nut 7 spiral shells of fastening piece.
And then, protective cover 40 screw threads are fixed on the guide rod supporting mass 3b, protect screw section 6a or spiral shell on the front end that is in guide rod 5 to be contained in the fastening piece 7 and 27 on the above-mentioned screw section 6a.In addition, in the through hole 4 on being located at guide rod supporting mass 3b, flanged wheel hub 43 is installed.At this moment, guide rod supporting mass 3a also likewise forms with guide rod supporting mass 3b.
In addition, shown in figure 12, two plates 45,45 that clip dynamic damper 1 are fixed on the support plate 23 through break-through bolt 46.Reference character 24 is intermediate plates, the 25th, and fixed plate.
(3) the 3rd mode of executions
Then, the 3rd mode of execution is described.
In Figure 14; Reference character 30a is that (for example rated speed is 100～200rpm for 2 circulation diesel engines of use large-scale of power generating equipment and low speed; Output number be about several thousand kW～50,000 kW), above that the section and the stage casing be provided be equipped with grid (not shown) spot check with platform 210.These spot checks with platform 210 the bigger position of up-down vibration, for example spot check with the end of platform 210 on the upright vertical dynamic damper (being called damper to place an order) 100 that is provided with.
Guide rod supporting mass 117,118 forms the cap shape respectively, is entrenched on the upper end and lower end of shell 112.The guide rod supporting mass 118 that is entrenched on the lower end of shell 112 has linking department 119 cylindraceous on its end face.And spiral shell is being adorned base part 111 in the female thread portion 120 on the inner peripheral surface of being located at linking department 119 cylindraceous.On the other hand, base part 111 is formed by tube portion 122 with outer screw section 121 and the foursquare substrate 123 (with reference to Figure 16) that is fixed in the portion 122, on four jiaos of substrate 123, is provided with bolt hole 124.
The through hole 125 that guide rod 113 will be located on the axis central part of guide rod supporting mass 117,118 up and down connects, and nut 127 spiral shells of fastening usefulness are contained on the screw section of being located on its two ends 126.In addition, the two ends of above-mentioned helical spring 115,116 receive a pair of spring carrier 128 supportings respectively.This spring carrier 128 is cross section convexs, has through hole 129 at its axis central part.
For example, regulate between the weight 130 of usefulness, make weight 131 standbies of regulating usefulness than a plurality of (for example about 5) natural frequency of its light weight (for example about 0.050～0.060kg) in a plurality of (for example two) natural frequency than light weight (for example about 0.5～0.6kg).In addition, also depend on the scale of damper, vibration suppression for example is about 1.9～2.0kg with the weight of weight 114, and the weight of inner spring carrier 128 for example is about 0.9～1.0kg.
In addition, vibration suppression is provided with the linear sleeve 133 that does not need fuel feeding on the wall of the through hole of being located at axis central part 32 with weight 114.In addition, as the vibratility adjustment of vibration suppression, be assumed to be S and S ' with the spring carrier 128 of weight 114 and the inner.
And then above-mentioned damper 100 is like Figure 17～shown in Figure 19, vibration suppression with weight 114 on, be provided with to the outstanding measurement pin 134 of its radial direction, and at shell 112 and be located at and be provided with the slotted hole 136 of measuring the outstanding usefulness of pin on the guide plate 135 on this shell 112.In addition, measure pin 134 and on the position that is equivalent to guide plate 135, possess miniature bearing 137, make to-and-fro motion become level and smooth.In addition, reference character 138 is the slide plates that are located at sliding freely on the guide plate 135, follows the to-and-fro motion of measuring pin 134.
Because the natural frequency f of damper 100 can use above-mentioned (1) formula to represent, so can easily change the natural frequency f of this damper through the weight of heavy that increases and decreases the vibration system that constitutes damper.In addition, according to the present invention, owing to just increase and decrease the weight of heavy of vibration system, so the size constancy of damper self.
Here; The weight of heavy of Vibration Suppression System increases shown in figure 20, realizes with the position of weight 114 through the weight 130,131 of the natural frequency adjusting usefulness of standby is transferred to adjacent to vibration suppression.
On the other hand, the weight of heavy of vibration system alleviate through make the weight 130 and/or 131 of regulating usefulness with the natural frequency of weight 114 adjacent to vibration suppression transfer between the spring carrier 128 of top guide rod supporting mass 117 and epimere or the spring carrier 128 of bottom guide rod supporting mass 118 and hypomere between realize.
Then, the effect to above-mentioned damper describes.
Shown in figure 14; Make damper 100 upright be located at the epimere of being located at diesel engine 30a and the spot check on the stage casing with the situation on the end of platform 210 under; If diesel engine 30a work and spot check with platform 210 up-down vibration, then stand be located at spot check with the damper on the end of platform 210 100 with spot check with platform 210 up-down vibration.
If damper 100 up-down vibration; Then vibration suppression with weight 114 via up and down helical spring 117,118 up-down vibration; But since spot check with platform 210 move up and down and vibration suppression with poor if having time between the moving up and down of weight 114; So spot check is cancelled out each other with the up-down vibration of weight 114 with the up-down vibration and the vibration suppression of platform 210, alleviated the vibration of the spot check that is located on the diesel engine 30a with the above-below direction of platform 210.
In above explanation; Situation about being configured in for the weight of natural frequency being regulated usefulness 130,131 among between the guide rod supporting mass 117 on helical spring 115 and top on top and between the guide rod supporting mass 118 of the helical spring 116 of bottom and bottom both is illustrated; But natural frequency is regulated in any between the guide rod supporting mass 117 on helical spring 115 and top that the weight 130,131 of usefulness is configured in top or between the guide rod supporting mass 118 of the helical spring 116 of bottom and bottom, also can access same effect.
(4) the 4th mode of executions
In the 3rd mode of execution; Damper 100 is upright to be located at spot check and to be illustrated with the situation on the platform 210 for making, but that kind for example shown in Figure 14, dampener body 110 is installed in to support on the side of spot check with the vertical parts 221 of the Supporting fixture 220 of platform 210 also can expects same effect.
Promptly; Shown in figure 21; On the side of dampener body 110, be provided with support plate 123, on the other hand, intermediate plate 225 be bolted on the fixed plate 224 via carriage 222; Said fixed plate 224 is welded on the side of supporting spot check with the vertical parts 221 of the Supporting fixture 220 of platform 210, and above-mentioned support plate 123 is fixed on this intermediate plate 225 through bolt 226.About other structures, give identical reference character for identical parts, omit detailed explanation.
In addition, the diameter of dampener body 110 is set at constitutes about the width of spot check with the vertical parts 221 of the Supporting fixture 220 of platform 210, is about 5～6 times of diameter of dampener body 110 with the length setting of dampener body 110.
Industrial applicibility
The present invention so long as large-scale and internal-combustion engine low speed also can use in the internal-combustion engine beyond the diesel engine of generating usefulness.
Claims (3)
1. dynamic damper; By the shell of tubular, be located at guide rod in this shell, be entrenched in weight that a plurality of vibration suppressions on this guide rod use sliding freely, a pair of helical spring of the both sides that are configured in this weight, be located at the both sides of above-mentioned shell a pair of guide rod supporting mass, be located at that natural frequency between this guide rod supporting mass and the above-mentioned helical spring is regulated the fastening piece on the weight of usefulness, the two ends that spiral shell is contained in above-mentioned guide rod and the vertical base part that usefulness is set that is located on one of them of above-mentioned guide rod supporting mass constitutes; It is characterized in that; On the weight that above-mentioned vibration suppression is used, be provided with to the outstanding measurement pin of the radial direction of this weight; And then, be provided with the slotted hole of measuring the outstanding usefulness of pin along the length direction of shell.
2. dynamic damper as claimed in claim 1 is characterized in that, on the weight that vibration suppression is used, is provided with the guide rod through hole, and is provided with linear sleeve along the wall of this guide rod through hole.
3. a diesel engine is characterized in that, makes the vertical spot check that is arranged on the diesel engine of being installed in of the described dynamic damper of claim 1 with on platform or the frame of supporting spot check with platform.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006084521A JP4426540B2 (en) | 2006-03-27 | 2006-03-27 | Diesel engine |
| JP2006-084521 | 2006-03-27 | ||
| JP2006-233392 | 2006-08-30 | ||
| JP2006233392A JP4885656B2 (en) | 2006-08-30 | 2006-08-30 | Vertical dynamic damper |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800110739A Division CN101410649B (en) | 2006-03-27 | 2007-03-23 | Dynamic damper and diesel engine where dynamic damper is mounted |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101943242A CN101943242A (en) | 2011-01-12 |
| CN101943242B true CN101943242B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102754109A Active CN101943242B (en) | 2006-03-27 | 2007-03-23 | Dynamic damper and diesel engine where dynamic damper is mounted |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100969690B1 (en) |
| CN (1) | CN101943242B (en) |
| WO (1) | WO2007116652A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384213B (en) * | 2011-07-02 | 2013-09-18 | 长安大学 | Device for absorbing vibration through nonlinear energy transfer and collision energy consumption |
| DE102011053730A1 (en) * | 2011-09-16 | 2013-03-21 | Vem Sachsenwerk Gmbh | Vibration damping device for a large electric machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220634A (en) * | 1997-03-25 | 1999-06-23 | 日产自动车株式会社 | Vibration reducing system for automotive vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250478A (en) * | 1975-10-22 | 1977-04-22 | Nippon Piston Ring Co Ltd | Motive vibration absorber |
| JPS61122092A (en) * | 1984-11-16 | 1986-06-10 | Daihatsu Diesel Kk | Ship's vibration damping method and vibration prevention device of vibration absorbing type |
| JPS621944U (en) * | 1985-06-20 | 1987-01-08 | ||
| JPS6266644U (en) * | 1985-10-16 | 1987-04-25 | ||
| JP2000190842A (en) * | 1998-12-28 | 2000-07-11 | Tokimec Inc | Passive anti-rocking device |
| JP2006002862A (en) * | 2004-06-18 | 2006-01-05 | Hitachi Zosen Corp | Vibration control device of structure |
-
2007
- 2007-03-23 CN CN2010102754109A patent/CN101943242B/en active Active
- 2007-03-23 WO PCT/JP2007/056006 patent/WO2007116652A1/en active Application Filing
- 2007-03-23 KR KR1020087017229A patent/KR100969690B1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220634A (en) * | 1997-03-25 | 1999-06-23 | 日产自动车株式会社 | Vibration reducing system for automotive vehicle |
Non-Patent Citations (3)
| Title |
|---|
| JP平3-74649A 1991.03.29 |
| JP平4-194432A 1992.07.14 |
| JP昭62-2033A 1987.01.08 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080080376A (en) | 2008-09-03 |
| CN101943242A (en) | 2011-01-12 |
| WO2007116652A1 (en) | 2007-10-18 |
| KR100969690B1 (en) | 2010-07-14 |
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