CN105899844B - Flywheel and marine diesel engine - Google Patents
Flywheel and marine diesel engine Download PDFInfo
- Publication number
- CN105899844B CN105899844B CN201580003500.3A CN201580003500A CN105899844B CN 105899844 B CN105899844 B CN 105899844B CN 201580003500 A CN201580003500 A CN 201580003500A CN 105899844 B CN105899844 B CN 105899844B
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- Prior art keywords
- flywheel
- split component
- engine
- main part
- bent axle
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
- F16F15/31—Flywheels characterised by means for varying the moment of inertia
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
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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
- F16F15/30—Flywheels
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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
- F16C3/08—Crankshafts made in one piece
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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
- F16F2230/00—Purpose; Design features
- F16F2230/32—Modular design
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention provides a kind of flywheel and engine.The engine of the present invention includes：The bent axle rotated centered on axis；The flywheel (16) being connected with circular plate shape and in axis of the center along bent axle with bent axle, flywheel (16), which has, to be fixed on the main part (27) of bent axle and the 1st split component (28) and the 2nd split component (29) of main part (27) is fixed in the way of it can load and unload, and the 1st split component (28) and the 2nd split component (29) form a part for side for flywheel (16) and a part for the bottom surface relative with engine main body in two toroidal bottom surfaces of flywheel (16) when being fixed on main part (27).
Description
Technical field
The present invention relates to flywheel and marine diesel engine.
Background technology
The bent axle of engine by base bearing by engine main body support support, flywheel be installed on bent axle front or
Rear end side.Flywheel is by absorbing unnecessary energy in combustion stroke and the rotating inertia force in other strokes using flywheel
Energy, so that bent axle successfully rotates.The following Patent Document 1 discloses a kind of invention for being related to flywheel, wherein, tool
There is the balance weight for being installed on freewheel body by loading and unloading freely, freely adjust the moment of inertia.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 63-118442 publications
The freewheel body of patent document 1 is designed to, by setting while balance weight is stacked in the housing department of freewheel body, can be made
Inertia force changes.In the case where such freewheel body is used in into ship, balance weight is arranged in housing department, therefore, must
Must increase housing department.Therefore, the total length of freewheel body becomes big, as a result, it is necessary to increase the engine room for setting engine.
In addition, patent document 1 is complete for the direction of the position relationship between freewheel body and engine main body, stacked balance weight
Do not account for entirely.In the case that interval between freewheel body and engine main body is larger, or opposite with engine main body side
Direction be stacked balance weight in the case of, the flexure quantitative change located at the bent axle of engine main body is big, therefore, the master with supporting bent axle
Bearing not comprehensive engagement and as damage the reason for.On the other hand, the interval between freewheel body and engine main body is nearer
In the case of, or in the case of the stacked balance weight in engine main body side, it is impossible to ensure the dimension between engine main body and freewheel body
Space is protected, therefore, is safeguarded every time, it is necessary to pull down the operations such as flywheel itself.Also, the flywheel of the big-block engine of ship etc.
Weight is also larger, accordingly, it would be desirable to the engineering for pulling down flywheel.
The content of the invention
Invent problem to be solved
The moment of inertia can be made rightly to change and engine maintenance can be made simple it is an object of the invention to provide one kind
The flywheel and marine diesel engine of change.
Means for solving the problems
The flywheel of the 1st technical scheme of the present invention has the main part for being fixed on bent axle and fixed in the way of it can load and unload
In the split component of the main part, wherein, in the state of the split component is fixed on the main part, the main part
And the split component while be formed as the engine main body side relative with the engine main body of marine diesel engine
Surface, in the split component in the state of main part dismounting, being once fixed with the part of the split component turns into
Operating personnel carries out the space of operation.
, can be in the portion for being fixed with split component by the way that split component is dismantled from the main part of flywheel according to the structure
Point form space, using the space as working space, can easily handle the circumferential arrangement of flywheel parts, be configured at
Parts between flywheel and engine main body.
In addition, the split component can also be filled along the direction vertical with the rotary shaft relative to the main part
Unload.According to the structure, when carrying out the handling of split component, split component can not also be made to be moved along rotation direction of principal axis, therefore,
The axial length of engine need not be increased in order to carry out the handling of split component.
The flywheel of the present invention has between engine main body and jackshaft is fixed on the main part of bent axle and that can fill
The mode unloaded is fixed on the split component of the main part, in the split component in the state of main part dismounting, institute
The end for stating jackshaft is formed to move to the radial outside of the main part.
According to the structure, by the way that split component is dismantled from main part, jackshaft can be loaded and unloaded from bent axle to radial outside.
, can be by with splitting structure by the way that split component is fixed on into the region that jackshaft is passed through when jackshaft is loaded and unloaded relative to bent axle
The corresponding weight of part is appended to flywheel, not make flywheel thickness, diameter increase, can increase the moment of inertia of flywheel.
The marine diesel engine of the present invention has the flywheel, the bent axle set for the main part and described mobilizes owner
Body.
According to the structure, by the way that split component is dismantled from main part, it can be formed in the part of fixed over-segmentation component
Space, using the space as working space, can easily handle the parts on the periphery for being configured at bent axle.
The effect of invention
According to the present invention, in order to reduce the twisting vibration of bent axle, there is a situation where to need larger inertia force, make inertia
It is different from the flywheel that can not split in the past, it can be ensured that for zero between flywheel and engine main body in the case of power is increased
The assembling of part, the working space safeguarded, and the distance between position of centre of gravity and base bearing of flywheel need not be pulled open, therefore,
Not making the deflection of bent axle increases.
Brief description of the drawings
Fig. 1 is the skeleton diagram for the engine for representing the 1st embodiment of the present invention.
Fig. 2 is the stereogram for the flywheel for representing the 1st embodiment of the present invention.
Fig. 3 is the stereogram for representing to disassemble the state after the split component of flywheel.
Fig. 4 is the top view for the flywheel for representing the 2nd embodiment of the present invention.
Fig. 5 is the top view for the flywheel for representing the 3rd embodiment of the present invention.
Fig. 6 is the skeleton diagram for the engine for representing the 4th embodiment of the present invention.
Fig. 7 is the top view for the flywheel for representing the 4th embodiment of the present invention.
Fig. 8 is the stereogram for the flywheel for representing the 4th embodiment of the present invention.
Symbol description
1：Engine
2：Bent axle
3：Engine main body
6：Support
7：Base bearing
8：Accommodation space
10：Axis
11：Thrust bearing
12：Longitudinal vibration damper
15：Rear end side seal
16：Flywheel
18：Housing
21：Propeller shaft
22：Propeller
23：Jackshaft
24：Engine main body side surface
25：Sideways
26：Axis
27：Main part
28：1st split component
29：2nd split component
31：Fastening part
32：Engine main body side surface
33：Sideways
34：1st split component mounting surface
35：2nd split component mounting surface
36：1st screwed hole
37：2nd screwed hole
41：Engine main body side surface
42：Sideways
43：1st through hole
44：Engine main body side surface
45：Sideways
46：2nd through hole
51：Flywheel
52：Main part
53：Split component
54：Bolt
61：Flywheel
62：Main part
63：Split component
64：Bolt
71：Rear end side flywheel
72：Main part
73：1st split component
74：2nd split component
75：Breach
Embodiment
The embodiment ＞ of ＜ the 1st
Hereinafter, the engine of the 1st embodiment of the present invention is illustrated referring to the drawings.Engine 1 is such as ship
With Diesel engine, the hull interior of ship is configured at, as shown in figure 1, with bent axle 2 and engine main body 3.Bent axle 2 has
The pin portion that is connected with one end of pitman, the collar for being supported on pin portion and being configured on axis 10 and by pin portion and axle
The arm that neck is linked up.
Engine main body 3 has support 6 and base bearing 7.Support 6 is fixed on hull, is internally formed with accommodation space 8.
The pin portion of bent axle 2 and arm are accommodated in the accommodation space 8 inside engine main body 3, and two ends are configured at accommodation space 8
It is outside.Base bearing 7 is respectively arranged at accommodation space 8, and bent axle 2 can be rotated centered on axis 10.
Engine main body 3 also has the pitman (not shown) and piston (not shown) corresponding with pin portion.Piston is distinguished
It is supported to move along a straight line.The small end of pitman is combined with crosshead pin, and big end is combined with the pin portion of bent axle 2.Hair
Motivation main body 3 makes piston move back and forth respectively by making fuel in cylinder (not shown) internal-combustion.Pitman is by by piston
Pin portion from reciprocating motion to bent axle 2 transmit, rotate bent axle 2.
Engine main body 3 also has thrust bearing 11, longitudinal vibration damper 12 and rear end side seal 15.Thrust axis
11 rear end sides for being configured at bent axle 2 are held, thrust is born, so that bent axle 2 is not moved along axis direction.Longitudinal vibration damper 12
The front of bent axle 2, Fig. 1 are configured at as indicated, being formed with grease chamber 12a, 12b for being full of by lubricant between bent axle 2 at it,
Make the vibration decay of the axis direction of bent axle 2.
Rear end side seal 15 is configured at the part of the housing of the rear end side insertion engine main body 3 of bent axle 2, prevents from storing empty
Between lubricant in 8 via the gap being connected with accommodation space 8 to External leakage.
Engine 1 has flywheel 16 in the front of engine 1.Flywheel 16 is formed as discoideus.The toroidal of flywheel 16
Bottom surface with configuring perpendicularly to the axis, and gravity allocation is on axis.Flywheel 16 is fixed on the end of the front of bent axle 2.In addition,
Flywheel 16 is discoideus, and it is positive round to be not necessarily required to.
Housing 18 is configured at the front of engine main body 3, is formed with the space for storing flywheel 16.
Ship with engine 1 includes propeller shaft 21, propeller 22 and jackshaft 23.Propeller shaft 21 is formed as
Bar-shaped, one end is configured at the outside of hull, and the other end is configured at the inside of hull, and hull is supported in the way of it can rotate.
Propeller 22 is formed as wing, is fixed on the end of the outside for being configured at hull of propeller shaft 21.Propeller 22 by with spiral shell
Rotation oar axle 21 rotates together, to promote hull.Jackshaft 23 is formed as bar-shaped.One end of jackshaft 23 and the rearward end of bent axle 2
Engagement, the other end is engaged with the end of the inside for being configured at hull of propeller shaft 21.
Fig. 2 represents flywheel 16.Flywheel 16 has engine main body side surface 24 and side 25.Engine main body side surface 24
Be flywheel 16 two bottom surfaces in 1.Sideways 25 be flywheel 16 have discoideus side.Flywheel 16 is with the axis of plectane
26 modes overlapped with axis 10 are configured, and engine main body side surface 24 is arranged as opposed to engine main body 3.
Flywheel 16 has main part 27, the 1st split component 28 and the 2nd split component 29.In addition, as shown in figure 3, main body
Portion 27 is formed with fastening part 31.Fastening part 31 is fixed on to the front end of bent axle 2 by using bolt, main part 27 is fixed on
Bent axle 2.
Main part 27 is formed with engine main body side surface 32, sideways the 33, the 1st split component mounting surface 34 and the 2nd point
Cut component mounting surface 35.1st split component mounting surface 34 and the 2nd split component mounting surface 35 are adjacent to each other.Main part 27 is also
It is formed with the convex portion more prominent than the side of the 1st split component mounting surface 34 and the 2nd split component mounting surface 35 to engine main body 3
30.Engine main body side surface 32 is in the mode parallel with the 1st split component mounting surface 34 and the 2nd split component mounting surface 35
Be formed as convex portion 30.I.e., engine main body side surface 32 is arranged to than the 1st split component mounting surface 34 and the 2nd split component
Mounting surface 35 leans on the side of engine main body 3.Multiple 1st screwed holes 36 are formed with the 1st split component mounting surface 34.The 2nd
Multiple 2nd screwed holes 37 are formed with split component mounting surface 35.In addition, the 1st split component mounting surface the 34 and the 2nd splits structure
Part mounting surface 35 is not necessarily the face parallel with engine main body side surface 32, as long as it is the 1st split component 28 and the 2nd
Split component 29 can be installed on the face of main part 27.
As shown in figure 3, the 1st split component 28 is formed as fan-shaped tabular, engine main body side surface 41 and side are formed with
Face 42.1st split component 28 is formed with multiple 1st through holes 43 corresponding with multiple 1st screwed holes 36.1st through hole 43
When the 1st split component 28 is installed on the 1st split component mounting surface 34 with the aligned in position of the 1st screwed hole 36, the 1st through hole 43
It is parallel with axis 26 with the axial direction of the 1st screwed hole 36.
As shown in figure 3, the 2nd split component 29 is formed as fan-shaped tabular, engine main body side surface 44 and side are formed with
Face 45.2nd split component 29 is formed with multiple 2nd through holes 46 corresponding with multiple 2nd screwed holes 37.2nd through hole 46
When the 2nd split component 29 is installed on the 2nd split component mounting surface 35 with the aligned in position of the 2nd screwed hole 37, the 2nd through hole 46
It is parallel with axis 26 with the axial direction of the 2nd screwed hole 37.
In addition, in the present embodiment, the shape of the 1st split component 28 and the 2nd split component 29 is in sector, but can
Correspondingly shape is deformed with main part 27, the 1st split component 28 and the respective shape of the 2nd split component 29.
Multiple 1st bolts of flywheel 16 insert multiple 1st screwed holes 36 respectively, and multiple 2nd bolts insert multiple 2 respectively
Screwed hole 37.When the 1st split component 28 is installed on the 1st split component mounting surface 34 of main part 27, multiple 1st bolts and axle
Line 26 is abreast configured.The through hole 43 of 1st bolt insertion the 1st and be anchored on multiple 1st screwed holes 36 so that the 1st split component
28 are fixed on main part 27.When the 2nd split component 29 is installed on the 2nd split component mounting surface 35 of main part 27, multiple 2
Bolt is abreast configured with axis 26.The through hole 46 of 2nd bolt insertion the 2nd and be anchored on the 2nd screwed hole 37 so that the 2nd segmentation
Component 29 is fixed on main part 27.
When the 1st split component 28 and the 2nd split component 29 are installed on main part 27, the engine main body side of main part 27
Surface 32, the engine main body side surface 44 of the split component 29 of engine main body side surface 41 and the 2nd of the 1st split component 28
Constitute the engine main body side surface 24 of flywheel 16.Main part 27 is installed in the 1st split component 28 and the 2nd split component 29
When, the side 33 of main part 27, the side 45 of the split component 29 of side 42 and the 2nd of the 1st split component 28 constitute flywheel 16
Side 25.
In addition, in the above description, to having a case that flywheel 16 is illustrated in the front of engine 1, but
The present invention is not limited to the example.I.e., it can also be provided with and fly with the same rear end side of flywheel 16 in the rear end side of engine 1
Wheel.In addition, rear end side flywheel is discoideus, and need not must be positive round.The bottom surface of the toroidal of rear end side flywheel
With configuring perpendicularly to the axis, and gravity allocation is on axis.Rear end side flywheel is fixed on the end of the rear end side of bent axle 2.In addition, after
Side flywheel is also same with flywheel 16, and split component is arranged at engine main body side in the way of it can load and unload.
Engine 1 generates rotary power by making fuel combustion, rotates about the axis bent axle 2.Propeller shaft 21 via
Jackshaft 23 simultaneously uses the rotary power transmitted from bent axle 2, and rotates propeller 22, so as to promote hull.Now, bent axle 2
The timing of multiple reciprocating motions of the pistons of engine main body 3 is set to stagger or make the resistance for putting on propeller 22 to change, thus,
Rotary speed changes, and produces twisting vibration.
By rotating bent axle 2, flywheel 16 rotates together with bent axle 2 around axis 10.Thus, in the rotary speed of bent axle 2
When changing due to the moment of inertia of flywheel 16, bent axle 2 is applied in the way of the diminishing of rotary speed of the flywheel 16 to make bent axle 2
Plus torque, make the twisting vibration reduction produced in bent axle 2.
In addition, in the case of provided with rear end side flywheel, rear end side flywheel is also same with flywheel 16, make what bent axle 2 rotated
Rotation changes reduction, makes the twisting vibration reduction produced in bent axle 2.
Then, the engine maintenance method to the engine 1 of present embodiment is illustrated.
When engine 1 stops without generating rotary power, bent axle 2 is fixed into predetermined angle, by flywheel 16
1st split component 28 and the 2nd split component 29 are configured at predetermined position.When bent axle 2 is fixed into predetermined angle, the 1st point
The split component 29 of component 28 and the 2nd is cut to be dismantled from main part 27.Here, predetermined angle is to disassemble the 1st split component
28 and the space that is formed during 2 split component 29 easily carry out the space of operation as operating personnel as angle or, hold
The angle of quick detachable 1st split component 28 and the 2nd split component 29.
, can be in main part 27 and engine by the way that the 1st split component 28 and the 2nd split component 29 are dismantled from main part 27
Space is formed between 1.Thus, different from the conventional situation for being provided with the flywheel that can not split, operator can be by body
The space that one entrance is formed, can handle or safeguard longitudinal vibration damper 12.
As a result, working space is set, it is therefore not necessary to be set in the way of the center of gravity of flywheel 16 is left engine main body 3
Flywheel 16 is put, does not increase the size of engine 1, it becomes possible to improve maintainability.In addition, being not provided with working space can just start
The side of owner's body 3 increases the thickness of flywheel 16, therefore, does not increase the size of engine 1, it becomes possible to obtain for making the torsion of bent axle 2
The larger inertia force of the dynamic reduction of rotational oscillation.
In addition, compared with conventional flywheel, flywheel 16 can be made close to engine main body 3, flywheel 16 can be shortened
The distance between base bearing of center of gravity and engine main body 3.As a result, the flexure reduction produced in bent axle 2 can be made, it can drop
Low bent axle 2 and the not comprehensive engagement of base bearing 7, can prevent the damage of base bearing 7.
In addition, for rear end side flywheel, also functioning to the action effect same with flywheel 16.
The embodiment ＞ of ＜ the 2nd
Then, the flywheel of the 2nd embodiment of the present invention is illustrated.
The flywheel 51 of present embodiment is applied to the flywheel for example located at front.As shown in figure 4, flywheel 51 is formed as round
Tabular, with main part 52, split component 53 and multiple bolts 54.Main part 52 is fixed on bent axle 2, is formed with and flies including being formed
The diametric mounting surface 52a of the plectane of wheel 51.Split component 53 is formed as the tabular of semicircle.By the way that split component 53 is pacified
Mounting surface 52a loaded on main part 52, forms flywheel 51.When being installed on main part 52, the formation flywheel 51 of split component 53
The part of (side of plectane), also, form the engine main body side surface relative with engine main body 3 of flywheel 51 sideways
The part of (bottom surface of plectane).
Multiple bolts 54 are configured respectively along the direction vertical with the mounting surface 52a of main part 52.The insertion of bolt 54 is split
Component 53 is simultaneously anchored on main part 52, and thus, split component 53 is fixed on main part 52, and both are integrated.
The engine of flywheel 51 with present embodiment is also same with engine 1 in the 1st embodiment, passes through dismounting
Split component 53, can easily safeguard longitudinal vibration damper 12.By making flywheel 51 close to engine main body 3, it can drop
The flexure of low bent axle 2, can prevent the damage of base bearing 7.
Flywheel 51 is not limited to front, can also be applied to the flywheel located at rear end side.
The embodiment ＞ of ＜ the 3rd
Then, the flywheel of the 3rd embodiment of the present invention is illustrated.
The flywheel 61 of present embodiment is applied to the flywheel for example located at front.As shown in figure 5, flywheel 61 is formed as round
Tabular, with main part 62, split component 63 and multiple bolts 64.In addition, flywheel 61 is discoideus, and do not need one
Surely it is positive round.Main part 62 is fixed on bent axle 2, is formed with the string corresponding with the central angle less than 180 degree of flywheel 61
Mounting surface 62a.If carrying out main view to split component 63, with by the circular arc corresponding with the central angle less than 180 degree and
The shape that the string corresponding with the central angle of the circular arc is surrounded.The mounting surface 62a of main part 62 is installed on by split component 63,
Form flywheel 61.When being installed on main part 62, a part for the side (side of plectane) of the formation flywheel 61 of split component 63,
Also, form a part for the engine main body side surface (bottom surface of plectane) relative with engine main body 3 of flywheel 61.
Multiple bolts 64 are configured respectively along the direction vertical with the mounting surface 62a of main part 62.The insertion of bolt 64 is split
Component 63 is simultaneously anchored on main part 62, and thus, split component 63 is fixed on main part 62, and both are integrated.
The engine of flywheel 61 with present embodiment is also with the engine 1 in the 1st embodiment likewise by tearing open
Split component 63 is unloaded, longitudinal vibration damper 12 can be easily safeguarded., can by making flywheel 61 close to engine main body 3
The flexure of bent axle 2 is reduced, the damage of base bearing 7 can be prevented.
Flywheel 61 is not limited to front, can also be applied to the flywheel located at rear end side.
The embodiment ＞ of ＜ the 4th
Then, the flywheel of the 4th embodiment of the present invention is illustrated.Fig. 6 is the 4th embodiment for representing the present invention
Engine and propeller skeleton diagram.
In the present embodiment, rear end side flywheel 71 is provided between jackshaft 23 and engine main body 3.Such as Fig. 7 institutes
Show, rear end side flywheel 71 is formed as discoideus, with main part 72, the 1st split component 73 and the 2nd split component 74 etc..This
Outside, rear end side flywheel 71 is discoideus, and need not must be positive round.As shown in figure 8, main part 72 is fixed on bent axle 2,
Form jagged 75.Breach 75 be formed in two bottom surfaces of the plectane to form rear end side flywheel 71 with (the reference of jackshaft 23
Fig. 6) relative jackshaft side surface.Breach 75 is formed at the corresponding with the central angle less than 180 degree of rear end side flywheel 71
String.
As shown in fig. 7, the 1st split component 73 is installed on one in breach 75 for the axle of rear end side flywheel 71
Individual, the 2nd split component 74 is installed on another in breach 75 for the axle of rear end side flywheel 71.1st split component
73 and the 2nd split component 74 forms the side of rear end side flywheel 71 when being installed on the breach 75 of main part 72, moreover, after being formed
The jackshaft side surface of side flywheel 71.
Then, the engine maintenance method to the engine of present embodiment is illustrated.
When dismantling jackshaft 23 from bent axle 2, first, bent axle 2 is fixed as to predetermined angle, by rear end side flywheel 71
1st split component 73 and the 2nd split component 74 are configured to predetermined position.When bent axle 2 is fixed as predetermined angle, the 1st point
Cutting any one of split component 74 of component 73 and the 2nd can upward dismantle from main part 72.Thus, the end energy of jackshaft 23
Enough pass through breach 75.When the 1st split component 73 or the 2nd split component 74 are dismantled from main part 72, operator makes jackshaft 23
Moved to the radial outside of main part 72, so as to which jackshaft 23 is dismantled from bent axle 2, and the end of jackshaft 23 passes through main part
72 breach 75.Thereby, it is possible to which jackshaft 23 is taken out from bent axle 2.
On the contrary, in the case where jackshaft 23 is installed to bent axle 2, making center sidesway of the jackshaft 23 to main part 72
It is dynamic, the breach 75 for passing through main part 72 so as to the end of jackshaft 23.Thereby, it is possible to which jackshaft 23 is mounted on into bent axle 2.
Afterwards, the 1st split component 73 and the 2nd split component 74 are installed on main part 72.
Rotate rear end side flywheel 71, make the 1st split component 73 and the 2nd split component 74 any one for axle
Positioned at upside, so as to which jackshaft 23 is taken out from main part 72.I.e., only by being rotated by 90 ° the maximum of rear end side flywheel 71,
Jackshaft 23 can be just set in the position that can be dismantled.
In conventional rear end side flywheel, in order to take out jackshaft, only it is provided with main part and can passes through jackshaft
Breach.Therefore, in order that the moment of inertia increase is, it is necessary to thicken the thickness or increase diameter of flywheel.On the other hand, according to this reality
Mode is applied, the 1st split component 73 and the 2nd split component 74 are set in breach 75, therefore, compared with conventional rear end side flywheel
Compared with, will not make thickness, diameter increase, it becomes possible to making the moment of inertia of rear end side flywheel 71 increases.Also, larger by obtaining is used
Property power, can reduce the twisting vibration of bent axle 2.
In addition, in the above-described embodiment, to two split components, i.e., the 1st split component 73 and the 2nd split component
74 examples that can be loaded and unloaded relative to main part 72 are illustrated, but the present invention is not limited to the example.For example, it is also possible to
It is that breach 75 is formed in main part only with respect to the direction for the axle of rear end side flywheel 71 along radial direction, the only the 1st segmentation
Component 73 can be loaded and unloaded relative to main part.I.e., the main part of the variation have above-mentioned embodiment main part 72 and the 2nd point
Cut the shape of the integration of component 74.In this variation, only the 1st split component 73 with for axle positioned at upside
Mode enables during the rotation of rear end side flywheel 71 from main part to take out jackshaft 23 upward.
Claims (3)
1. a kind of flywheel, the segmentation of the main part is fixed on the main part for being fixed on bent axle and in the way of it can load and unload
Component, the flywheel is characterised by,
In the state of the split component is fixed on the main part, the one of the one side of the main part and the split component
Face is formed as the engine main body side surface relative with the engine main body of marine diesel engine,
In the split component in the state of main part dismounting, being once fixed with the part of the split component turns into work
Industry personnel carry out the space of operation.
2. flywheel according to claim 1, it is characterised in that
The main part is formed with the split component peace for installing the split component on the face relative with the engine main body
Dress face,
The engine main body side surface is arranged to than the split component mounting surface closer to the side of the engine main body.
3. a kind of marine diesel engine, it is characterised in that
The bent axle and the engine main body set with the flywheel described in claim 1 or 2, for the main part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-055062 | 2014-03-18 | ||
| JP2014055062A JP5931945B2 (en) | 2014-03-18 | 2014-03-18 | Flywheel and marine diesel engines |
| PCT/JP2015/057773 WO2015141646A1 (en) | 2014-03-18 | 2015-03-16 | Flywheel and engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105899844A CN105899844A (en) | 2016-08-24 |
| CN105899844B true CN105899844B (en) | 2017-10-24 |
Family
ID=54144613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580003500.3A Active CN105899844B (en) | 2014-03-18 | 2015-03-16 | Flywheel and marine diesel engine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5931945B2 (en) |
| KR (1) | KR101836022B1 (en) |
| CN (1) | CN105899844B (en) |
| WO (1) | WO2015141646A1 (en) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5635806Y2 (en) * | 1975-06-03 | 1981-08-24 | ||
| JPS57102744U (en) * | 1980-12-17 | 1982-06-24 | ||
| JPS61181142U (en) * | 1985-05-02 | 1986-11-12 | ||
| JPS63118442A (en) | 1986-11-06 | 1988-05-23 | 三井建設株式会社 | Assembling struucture of room partition wall |
| JPH0191045U (en) * | 1987-12-07 | 1989-06-15 | ||
| JPH0234847U (en) * | 1988-08-30 | 1990-03-06 | ||
| JPH02154832A (en) * | 1988-12-02 | 1990-06-14 | Honda Motor Co Ltd | Flywheel for engine |
| JP2545504Y2 (en) * | 1991-12-11 | 1997-08-25 | 日野自動車工業株式会社 | Fuel injection pump with torsional damper |
| GB2290122B (en) * | 1994-06-10 | 1998-02-18 | Nigel Hurrion | Engine |
| JPH0893853A (en) * | 1994-09-29 | 1996-04-12 | Mitsubishi Heavy Ind Ltd | Dynamic vibration reducer for rotary shaft system torsional vibration |
| KR200184252Y1 (en) | 1999-12-29 | 2000-06-01 | 대우중공업주식회사 | Variable balance weight have crank shaft |
| JP2004053008A (en) * | 2002-05-31 | 2004-02-19 | Fukoku Co Ltd | Viscous damper |
| JP2012215146A (en) * | 2011-04-01 | 2012-11-08 | Isuzu Motors Ltd | Power unit and vehicle equipped with the same, and method for reducing resonance sound |
| CN202182146U (en) * | 2011-08-03 | 2012-04-04 | 吴能建 | Air-cooled diesel engine flywheel assembly |
-
2014
- 2014-03-18 JP JP2014055062A patent/JP5931945B2/en active Active
-
2015
- 2015-03-16 CN CN201580003500.3A patent/CN105899844B/en active Active
- 2015-03-16 KR KR1020167017288A patent/KR101836022B1/en active IP Right Grant
- 2015-03-16 WO PCT/JP2015/057773 patent/WO2015141646A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| KR20160084473A (en) | 2016-07-13 |
| KR101836022B1 (en) | 2018-03-07 |
| CN105899844A (en) | 2016-08-24 |
| JP5931945B2 (en) | 2016-06-08 |
| JP2015175516A (en) | 2015-10-05 |
| WO2015141646A1 (en) | 2015-09-24 |
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Effective date of registration: 20170814 Address after: Japan's Tokyo port harbor two chome 16 No. 5 Applicant after: Mit-subishi Heavy Industries Ltd. Applicant after: Japan motor Limited by Share Ltd Address before: Japan's Tokyo port harbor two chome 16 No. 5 Applicant before: Mit-subishi Heavy Industries Ltd. |
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