CN106348149A - Hoisting mounting method and hoisting mounting fixture for torsional vibration damper - Google Patents
Hoisting mounting method and hoisting mounting fixture for torsional vibration damper Download PDFInfo
- Publication number
- CN106348149A CN106348149A CN201610832578.2A CN201610832578A CN106348149A CN 106348149 A CN106348149 A CN 106348149A CN 201610832578 A CN201610832578 A CN 201610832578A CN 106348149 A CN106348149 A CN 106348149A
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- Prior art keywords
- vibration damper
- torsional vibration
- hoisting
- face
- bent axle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a hoisting mounting fixture for a torsional vibration damper. The hoisting mounting fixture comprises a plurality of hoisting supports and at least two fastening screws, each hoisting support is in a T shape and comprises a lower clamping seat and a pair of hoisting steel wire rope clamping plates upwardly and vertically extending from the longitudinal upper middle of the lower clamping seat, each lower clamping seat clamps the peripheral edge of the torsional vibration damper, and ends of the fastening screws respectively penetrate one side of each lower clamping seat to be abutted against the lateral side of the outer edge of the torsional vibration damper. A hoisting mounting method includes the steps: 1) hoisting the torsional vibration damper in horizontal arrangement; 2) mounting the hoisting supports; 3) vertically hoisting the torsional vibration damper; 4) aligning a center hole of the torsional vibration damper to a mounting flange of a crankshaft end face; 5) pulling the torsional vibration damper to sleeve the mounting flange of the crankshaft end face; 6) fixing the torsional vibration damper to the crankshaft end. The hoisting mounting fixture guarantees hoisting safety, the hoisting mounting method is simple, easy and feasible, mounting efficiency is improved, and the problem of inconvenience in mounting of the torsional vibration damper due to lack of hoisting holes is solved.
Description
Technical field
The present invention relates to a kind of lifting mounting tool of marine low speed diesel engine part, especially a kind of torsional vibration damper rises
Hang mounting tool, further relate to the lifting of torsional vibration damper and the method being arranged on bent axle termination, belong to lifting specific purpose tool technology
Field.
Background technology
Torsional vibration damper is the vitals for eliminating diesel torsional vibration, in diesel engine running, if there is
The excessive problem of torsional oscillation, it will cause the harmful effects such as main shaft play, main frame speed governing shakiness it is necessary to install torsional vibration damper to disappear
Except torsional oscillation.
Diesel engine when maker carries out installation and debugging it is sometimes desirable to bent axle termination install torsional vibration damper, conventional
Torsional vibration damper is silicon oil damper, due to being filled with silicone oil in silicone oil shock absorber shell it is impossible to drilling and tapping according to a conventional method
Processing hanging bolt hole, or directly get out the through hole running through silicone oil shock absorber shell axial direction, for rising through hanger rod is vertical
Hang silicon oil damper.Prior art directly vertically to rise by the way of hoisting wirerope is wound around silicone oil shock absorber shell one week
Hang, this vertical lifting mode has the major safety risks of hoisting wirerope slippage, further, since inside hoisting wirerope
It is tightly pressed against on silicone oil shock absorber shell circumferencial direction, a small amount of silicone oil shock absorber shell that rotates also is difficult to, and leads to torsional oscillation to subtract
The device one that shakes encloses multiple installing holes and is difficult to be directed at the crankshaft end multiple bent axle through holes of first circle, increases assembly difficulty, reduces torsional oscillation
Vibroshock installation effectiveness.
Content of the invention
It is an object of the invention to provide a kind of structure is simple, low cost of manufacture, be easy to lift by crane the torsional vibration damper installed and rise
Hang mounting tool and lifting installation method.
The present invention is achieved by the following technical programs:
A kind of torsional vibration damper lifts by crane mounting tool, include several be uniformly fixed on torsional vibration damper circumferencial direction edge
Hang support and at least 2 trip bolts being fixed on support side, described hoisting bracket is in convex shape, including the lower folder in flute profile
Seat and vertically extending a pair of the hoisting wirerope clamping plate upwards of the upside longitudinal middle part from lower holder, described lower holder includes fixing
The upper plate linking into an integrated entity and the lower side panel of both sides；Described lower holder is stuck on the edge of torsional vibration damper circumferencial direction, extremely
Few 2 trip bolt terminations are each passed through one block of lower side panel, are resisted against on the side of torsional vibration damper outer rim.
The purpose of the present invention is realized by the following technical programs further.
Further, the pair of hoisting wirerope clamping plate lower end is vertically fixed on the longitudinal middle part of upper plate, a pair
Inner distance a of hoisting wirerope clamping plate is more than hoisting wirerope diameter d.The height b of the pair of hoisting wirerope clamping plate with
The proportionate relationship of inner distance a of a pair of hoisting wirerope clamping plate is b=1.9～2.1a.
Further, lower side panel inner distance c of described lower holder both sides with the proportionate relationship of torsional vibration damper thickness e is
C=1.03～1.05e.
A kind of use torsional vibration damper lifts by crane the lifting installation method of mounting tool, comprises the following steps:
1) lift by crane the torsional vibration damper of horizontal positioned
Penetrate standing up steel wire rope from the torsional vibration damper centre bore of horizontal positioned, then slowly sling torsional vibration damper so as to
It is lifted to plumbness from horizontality；
2) several hoisting brackets are installed
The lower holder notch of hoisting bracket is stuck in the outer rim of torsional vibration damper, and at least 2 trip bolts are screwed into respectively
On the lower side panel of lower holder, the end face of trip bolt one end is made to be resisted against on the side of torsional vibration damper outer rim；With same side
Remaining hoisting bracket is arranged in torsional vibration damper outer rim method, and several uniform hoisting brackets are fixed on torsional vibration damper circumference
On direction；
3) vertically sling torsional vibration damper
Special hoisting wirerope is imbedded in several clamping plate to hoisting wirerope around torsional vibration damper circumferencial direction successively, then will
The suspension ring of hoisting wirerope upper end pack in crane hook, and crane hook rises torsional vibration damper of vertically slinging；
4) mounting flange of torsional vibration damper central aperture crankshaft end-face
Dismantle and stand up steel wire rope, disk dynamic crankshaft, bent axle 1# cylinder crank throw is gone to top dead-centre, makes torsional vibration damper central aperture
The mounting flange of crankshaft end-face, and make the circle torsional vibration damper installing hole outside torsional vibration damper centre bore tentatively be directed at bent axle
A corresponding circle bent axle through hole outside the mounting flange of end face；
5) two lengthening studs pull torsional vibration damper to pack into crankshaft end-face mounting flange
A small amount of rotation torsional vibration damper, makes torsional vibration damper installing hole be directed at corresponding bent axle through hole, thus lengthening double end can be made
Stud passes through torsional vibration damper installing hole and bent axle through hole；Screw on respectively nut at the two ends lengthening studs, then distinguish
Turn the nut outside torsional vibration damper installing hole and outside bent axle through hole, make a nut end face be resisted against the peace of crankshaft end-face
On dress flange outer sides face, and fix this nut with spanner, prevent from lengthening studs rotation, tighten torsional vibration damper simultaneously and install
Another nut outside hole, pulls torsional vibration damper lentamente to move to the mounting flange direction of crankshaft end-face；Until torsional oscillation
Vibroshock centre bore packs into the mounting flange of crankshaft end-face；Finally tighten the installation with crankshaft end-face outside torsional vibration damper respectively
The nut of flange outer sides is so that the mounting flange of crankshaft end-face is completely in the installation counterbore of torsional vibration damper；
6) torsional vibration damper is fixed on bent axle termination
First many studs one end are each passed through torsional vibration damper installing hole to be screwed into one by one in the bent axle through hole of bent axle termination,
Then respectively nut is screwed on the corresponding studs other end, torsional vibration damper is tentatively fixed on bent axle termination；Connect
And pull down two lengthening studs, two studs are filled on the position that it is vacated, and nut of screwing on；Latter two one
Organize the nut tightening on the diagonal studs arranging by group so that crankshaft end-face mounting flange end face is close to torsional vibration damper
Counterbore end face on so that torsional vibration damper is arranged on bent axle termination.
Several hoisting brackets of the present invention are distributed on the edge of torsional vibration damper circumferencial direction, and each hoisting bracket is respectively
It is fixed on the edge of torsional vibration damper circumferencial direction by least 2 trip bolts, hoisting bracket and torsional vibration damper
Be fixedly connected safe and reliable.Because hoisting bracket top is provided with a pair of hoisting wirerope clamping plate, and its height b and a pair of lifting
The proportionate relationship of inner distance a of steel wire clamping plate is b=1.9～2.1a so that hoisting wirerope can be around torsional vibration damper circumference
Direction is imbedded in several clamping plate to hoisting wirerope, and does not fall out hoisting bracket it is ensured that the lifting safety of torsional vibration damper.This
Bright lifting installation method is simple and easy to do, because hoisting wirerope is not completely contacted with torsional vibration damper shell, in torsional vibration damper
During the corresponding circle bent axle through hole in one circle installing hole be aligned crankshaft end surface side, torsional vibration damper can be rotated on a small quantity, be easy to both
Installing hole alignment.The present invention improves installation effectiveness, solves and does not have what lifting eye was inconvenient to install because of torsional vibration damper
A difficult problem.
Advantages of the present invention and feature, will be for illustration and explanation by the non-limitative illustration of preferred embodiment below,
These embodiments, are only used as example referring to the drawings and are given.
Brief description
Fig. 1 is the front view of hoisting bracket of the present invention；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the work step figure of the step 1) of lifting installation method of the present invention；
Fig. 4 is the work step figure of the step 5) of lifting installation method of the present invention；
Fig. 5 is the left view of Fig. 4；
Fig. 6 is the work step figure of the step 6) of lifting installation method of the present invention；
Fig. 7 is the left view of Fig. 6.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, the torsional vibration damper lifting mounting tool of the present invention includes 6 and is uniformly fixed on torsional oscillation subtracting
Hoisting bracket 1 and 2 trip bolts 2 being fixed on support side shaking on device 10 circumferencial direction edge, hoisting bracket 1 is welding
Part, in convex shape, including the lower holder 11 in flute profile and vertically extending a pair upwards of the upside longitudinal middle part from lower holder 11
Hoisting wirerope clamping plate 12, lower holder 11 includes being fixedly connected the lower side panel 112 of integral upper plate 111 and both sides.Lower folder
Seat 11 is stuck on the edge of torsional vibration damper 10 circumferencial direction, and the termination of at least 2 trip bolts 2 is each passed through one block of lower side panel
112, it is resisted against on the side of torsional vibration damper 10 outer rim, thus the lower holder 11 of hoisting bracket 1 is clamped to torsional oscillation subtracting
Shake on the edge of device 10 circumferencial direction.
A pair of hoisting wirerope clamping plate 12 lower end vertical welding is fixed on the longitudinal middle part of upper plate 111, a pair of lifting
Inner distance a of steel wire clamping plate 12 is more than the diameter d of hoisting wirerope 3, is easy to for hoisting wirerope 3 to imbed a pair of hoisting steel
Between cord clamping plate 12.Inner distance a of the height b of a pair of hoisting wirerope clamping plate 3 and a pair of hoisting wirerope clamping plate 12
Proportionate relationship be b=1.9～2.1a, the present embodiment be b=2.0a, hoisting wirerope 3 can be made not fall out hoisting bracket 1 it is ensured that
Lifting safety.
As shown in figure 4, the ratio of lower side panel 112 inner distance c of lower holder 11 both sides and torsional vibration damper 10 thickness e is closed
It is for c=1.03～1.05e, the present embodiment is c=1.04e so that torsional vibration damper 10 can inject in time holder 11.
As shown in Fig. 3～Fig. 7, the use torsional vibration damper of the present invention lifts by crane the lifting installation method of mounting tool, including
Following steps:
1) lift by crane the torsional vibration damper 10 of horizontal positioned
The centre bore standing up the torsional vibration damper 10 from horizontal positioned for the steel wire rope 4 is penetrated, torsional vibration damper of then slowly slinging
10 so as to be lifted to plumbness from horizontality.
2) 6 hoisting brackets 1 are installed
Lower holder 11 notch of hoisting bracket 1 is stuck in the outer rim of torsional vibration damper 10, and 2 trip bolts 2 are twisted respectively
Enter on the lower side panel 112 of lower holder 11, make the end face of trip bolt 2 right-hand member be resisted against the left surface of torsional vibration damper 10 outer rim
On.With same method, remaining 5 hoisting bracket 1 is arranged in torsional vibration damper 10 outer rim, 6 uniform hoisting brackets 1
It is fixed on torsional vibration damper 10 circumferencial direction.
3) vertically sling torsional vibration damper 10
Special hoisting wirerope 3 is imbedded in 6 pairs of hoisting wirerope clamping plate 12 around torsional vibration damper 10 circumferencial direction successively, so
Afterwards the suspension ring of hoisting wirerope 12 upper end are packed in crane hook, crane hook rises torsional vibration damper of vertically slinging
10.
4) mounting flange 21 of torsional vibration damper 10 central aperture bent axle 20 end face
Dismantle and stand up steel wire rope 4, disk dynamic crankshaft 20, the 1# cylinder crank throw 201 of bent axle 20 is gone to top dead-centre, makes torsional vibration damper
The mounting flange 202 of 10 central aperture bent axle 20 end face, and so that the circle torsional oscillation outside torsional vibration damper 10 centre bore is subtracted
The device installing hole 101 that shakes tentatively is directed at the corresponding circle bent axle through hole 203 in mounting flange 202 outside of bent axle 20 end face.
5) two lengthen the mounting flange 202 that studs 5 pulls torsional vibration damper 10 to pack into bent axle 20 end face
A small amount of rotation torsional vibration damper 10, makes torsional vibration damper installing hole 101 be directed at corresponding bent axle through hole 203, thus can make
Lengthen studs 5 and pass through torsional vibration damper installing hole 101 and bent axle through hole 203.Twist respectively at the two ends lengthening studs 5
Top nut 6, then turns torsional vibration damper installing hole 101 outside and the nut 6 in bent axle through hole 203 outside respectively, makes a spiral shell
Female 6 end faces are resisted against on mounting flange 202 lateral surface of bent axle 20 end face, and fix this nut 6 with spanner, prevent from lengthening double end
Stud 5 rotates, and tightens another nut 6 in torsional vibration damper installing hole 101 outside simultaneously, pulls torsional vibration damper 10 lentamente
Move to mounting flange 202 direction of bent axle 20 end face；Until the installation that torsional vibration damper centre bore packs into bent axle 20 end face is convex
Edge 202.Finally tighten the nut 6 in mounting flange 202 outside of torsional vibration damper 10 outside and bent axle 20 end face respectively so that song
The mounting flange 202 of axle 20 end face is completely in the installation counterbore of torsional vibration damper 10；
6) first 10 studs 7 are each passed through torsional vibration damper installing hole 103, the bent axle being screwed into bent axle 20 termination one by one leads to
In hole 203, then respectively nut 6 is screwed on corresponding studs 7 left end, torsional vibration damper 10 is tentatively fixed on bent axle
On 20 terminations.Then pull down two lengthening studs 5, two studs 7 are filled on the position that it is vacated, and spiral shell of screwing on
Female 6.Latter two group nut 6 tightened by group on the studs 7 of diagonal arrangement is so that the mounting flange of bent axle 21 end face
202 end faces are close on the counterbore end face of torsional vibration damper 10, so that torsional vibration damper 10 is arranged on bent axle 20 termination.
In addition to the implementation, the present invention can also have other embodiment, all employing equivalents or equivalent transformation shape
The technical scheme becoming, all falls within the protection domain of application claims.
Claims (6)
1. a kind of torsional vibration damper lifting mounting tool is uniformly fixed on torsional vibration damper circumference it is characterised in that inclusion is several
Hoisting bracket and at least 2 trip bolts being fixed on support side on the edge of direction, described hoisting bracket is in convex shape, including
Lower holder in flute profile and vertically extending a pair of the hoisting wirerope clamping plate upwards of the upside longitudinal middle part from lower holder, described under
Holder includes being fixedly connected the lower side panel of integral upper plate and both sides；Described lower holder is stuck in torsional vibration damper circumferencial direction
Edge on, at least 2 trip bolt terminations are each passed through one block of lower side panel, are resisted against on the side of torsional vibration damper outer rim.
2. torsional vibration damper lifting mounting tool as claimed in claim 1 is it is characterised in that the pair of hoisting wirerope presss from both sides
Plate lower end is vertically fixed on the longitudinal middle part of upper plate, and inner distance a of a pair of hoisting wirerope clamping plate is more than lifting steel wire
Rope diameter d.
3. torsional vibration damper lifting mounting tool as claimed in claim 2 is it is characterised in that the pair of hoisting wirerope presss from both sides
The proportionate relationship of inner distance a of the height b of plate and a pair of hoisting wirerope clamping plate is b=1.9～2.1a.
4. torsional vibration damper as claimed in claim 1 lifting mounting tool is it is characterised in that the downside of described lower holder both sides
Plate inner distance c is c=1.03～1.05e with the proportionate relationship of torsional vibration damper thickness e.
5. a kind of lifting installation method lifting by crane mounting tool using torsional vibration damper as claimed in claim 1, its feature exists
In comprising the following steps:
1) lift by crane the torsional vibration damper of horizontal positioned
Penetrate standing up steel wire rope from the torsional vibration damper centre bore of horizontal positioned, then slowly sling torsional vibration damper so as to
It is lifted to plumbness from horizontality；
2) several hoisting brackets are installed
The lower holder notch of hoisting bracket is stuck in the outer rim of torsional vibration damper, and at least 2 trip bolts are screwed into respectively
On the lower side panel of lower holder, the end face of trip bolt one end is made to be resisted against on the side of torsional vibration damper outer rim；With same side
Remaining hoisting bracket is arranged in torsional vibration damper outer rim method, and several uniform hoisting brackets are fixed on torsional vibration damper circumference
On direction；
3) vertically sling torsional vibration damper
Special hoisting wirerope is imbedded in several clamping plate to hoisting wirerope around torsional vibration damper circumferencial direction successively, then will
The suspension ring of hoisting wirerope upper end pack in crane hook, and crane hook rises torsional vibration damper of vertically slinging；
4) mounting flange of torsional vibration damper central aperture crankshaft end-face
Dismantle and stand up steel wire rope, disk dynamic crankshaft, bent axle 1# cylinder crank throw is gone to top dead-centre, makes torsional vibration damper central aperture
The mounting flange of crankshaft end-face, and make the circle torsional vibration damper installing hole outside torsional vibration damper centre bore tentatively be directed at bent axle
A corresponding circle bent axle screwed hole outside the mounting flange of end face；
5) two lengthen the mounting flange that studs pulls torsional vibration damper to pack into crankshaft end-face
A small amount of rotation torsional vibration damper, makes torsional vibration damper installing hole be directed at corresponding bent axle through hole, thus lengthening double end can be made
Stud passes through torsional vibration damper installing hole and bent axle through hole；Screw on respectively nut at the two ends lengthening studs, then distinguish
Turn the nut outside torsional vibration damper installing hole and outside bent axle through hole, make a nut end face be resisted against the peace of crankshaft end-face
On dress flange outer sides face, and fix this nut with spanner, prevent from lengthening studs rotation, tighten torsional vibration damper simultaneously and install
Another nut outside hole, pulls torsional vibration damper lentamente to move to the mounting flange direction of crankshaft end-face；Until torsional oscillation
Vibroshock centre bore packs into the mounting flange of crankshaft end-face；Finally tighten the installation with crankshaft end-face outside torsional vibration damper respectively
The nut of flange outer sides is so that the mounting flange of crankshaft end-face is completely in the installation counterbore of torsional vibration damper；
6) torsional vibration damper is fixed on bent axle termination
First many studs one end are each passed through the bent axle screwed hole that torsional vibration damper installing hole is screwed into bent axle termination one by one
Interior, then respectively nut is screwed on the corresponding studs other end, torsional vibration damper is tentatively fixed on bent axle termination；
Then pull down two lengthening studs, two studs are filled on the position that it is vacated, and nut of screwing on；Latter two
One group of nut tightened by group on the studs of diagonal arrangement is so that crankshaft end-face mounting flange end face is close to torsional oscillation vibration damping
On the counterbore end face of device, so that torsional vibration damper is arranged on bent axle termination.
6. use torsional vibration damper as claimed in claim 5 lifts by crane the lifting installation method of mounting tool it is characterised in that institute
State the diameter with diameter greater than lengthening studs of studs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832578.2A CN106348149A (en) | 2016-09-20 | 2016-09-20 | Hoisting mounting method and hoisting mounting fixture for torsional vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832578.2A CN106348149A (en) | 2016-09-20 | 2016-09-20 | Hoisting mounting method and hoisting mounting fixture for torsional vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106348149A true CN106348149A (en) | 2017-01-25 |
Family
ID=57858835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610832578.2A Pending CN106348149A (en) | 2016-09-20 | 2016-09-20 | Hoisting mounting method and hoisting mounting fixture for torsional vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106348149A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5566999A (en) * | 1994-10-06 | 1996-10-22 | Goettl; David R. | Differential hoist fixture |
| CN201053347Y (en) * | 2007-05-18 | 2008-04-30 | 沪东重机有限公司 | Hoisting and turning device mounted on diesel engine cylinder lid |
| CN101186262A (en) * | 2007-12-21 | 2008-05-28 | 沪东重机有限公司 | Hoisting method for ultra-large ring-shape accessory and auxiliary hoisting tool |
| CN103626025A (en) * | 2013-12-04 | 2014-03-12 | 大连洁能重工机械有限公司 | Special hoisting mechanism for nuclear main pump flywheel |
| CN203513100U (en) * | 2013-09-17 | 2014-04-02 | 山重建机有限公司 | Hanger for rotary supporting ring of excavator |
| CN203624826U (en) * | 2013-11-29 | 2014-06-04 | 中国北车集团大连机车车辆有限公司 | Lifting appliance for lifting locomotive wheelset |
| CN204771361U (en) * | 2015-01-26 | 2015-11-18 | 上汽通用五菱汽车股份有限公司 | Torsional damper device |
-
2016
- 2016-09-20 CN CN201610832578.2A patent/CN106348149A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5566999A (en) * | 1994-10-06 | 1996-10-22 | Goettl; David R. | Differential hoist fixture |
| CN201053347Y (en) * | 2007-05-18 | 2008-04-30 | 沪东重机有限公司 | Hoisting and turning device mounted on diesel engine cylinder lid |
| CN101186262A (en) * | 2007-12-21 | 2008-05-28 | 沪东重机有限公司 | Hoisting method for ultra-large ring-shape accessory and auxiliary hoisting tool |
| CN203513100U (en) * | 2013-09-17 | 2014-04-02 | 山重建机有限公司 | Hanger for rotary supporting ring of excavator |
| CN203624826U (en) * | 2013-11-29 | 2014-06-04 | 中国北车集团大连机车车辆有限公司 | Lifting appliance for lifting locomotive wheelset |
| CN103626025A (en) * | 2013-12-04 | 2014-03-12 | 大连洁能重工机械有限公司 | Special hoisting mechanism for nuclear main pump flywheel |
| CN204771361U (en) * | 2015-01-26 | 2015-11-18 | 上汽通用五菱汽车股份有限公司 | Torsional damper device |
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Application publication date: 20170125 |