CN109048299A - The connecting rod bearing shell mounting tool and method of marine diesel - Google Patents
The connecting rod bearing shell mounting tool and method of marine diesel Download PDFInfo
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- CN109048299A CN109048299A CN201811283389.XA CN201811283389A CN109048299A CN 109048299 A CN109048299 A CN 109048299A CN 201811283389 A CN201811283389 A CN 201811283389A CN 109048299 A CN109048299 A CN 109048299A
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- connecting rod
- bearing shell
- rod tip
- supporting block
- bearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
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Abstract
The invention discloses a kind of connecting rod bearing shell mounting tools of marine diesel, including wrist-pin end of connecting rod suspender and connecting rod tip lifting and bearing shell supporting mechanism, connecting rod tip lifting and bearing shell supporting mechanism are arranged under the two sides of connecting rod tip, including be arranged in pairs right angle platform sling, supporting block, load-bearing bolt group, and two cross bars and bearing shell suspender, right angle platform sling is separately fixed at connecting rod tip two sides, supporting block is located at the downside of two port planes of connecting rod tip, and cross bar both ends are fixedly connected with supporting block.The upper and lower side of load-bearing bolt group is separately connected right angle platform sling and supporting block, and bearing shell suspender is coated on the outside of bearing shell.The step of method includes 1) assembly tooling, 2) tooling connect with bearing shell, 3) bearing shell is installed in place.Tooling of the invention is versatile, substantially increases assembly efficiency, improves assembling quality, eliminates the hidden danger that safety accident occurs.
Description
Technical field
The present invention relates to the component mounting tool and method of a kind of marine diesel, in particular to a kind of energy is quickly, efficiently
Bearing shell is installed into the tooling and method of connecting rod tip by ground, belongs to diesel engine mounting technology field.
Background technique
As shown in Figure 1, the connecting rod upper and lower side of marine diesel is respectively wrist-pin end of connecting rod 10 and connecting rod tip 20, wherein connecting rod
Upward, the inner arc surface of connecting rod tip 20 is downward for the inner arc surface of small end 10.When the connecting rod assembly of marine diesel, first will it need
Bearing shell and connecting rod tip assembly are integral, then again integrally hang in connecting rod in rack together with the bearing shell on connecting rod, in this way
It can check whether mate meets the requirements, while the assembly time of complete machine can be saved.
The bearing shell installation of connecting rod tip must carry out upward under, operate relatively difficult.Currently, aforementioned installation is not dedicated
Tooling is all directly to be completed by manpower.The assembly efficiency of this assembly method is low, the inside and outside circular arc for the bearing shell that is easy to damage
Face reduces assembling quality, and there is the security risks of operator's hand injury.
Summary of the invention
The object of the present invention is to provide a kind of structures simply, the connecting rod bearing shell installation of the marine diesel of assembly convenient and efficient
Tooling and method.
The present invention is achieved by the following technical programs:
The purpose of the present invention can also be further realized by following technical measures.
A kind of connecting rod bearing shell mounting tool of marine diesel, including wrist-pin end of connecting rod suspender and connecting rod tip lifting and bearing shell
Supporting mechanism, the wrist-pin end of connecting rod suspender include the T type platform sling for being separately positioned on wrist-pin end of connecting rod two sides, two upper tackles
Upper end hang on travelling crane hook A, the lower ends of two upper tackles hang T type platform sling at splayed；Connecting rod tip lifting and
Bearing shell supporting mechanism is arranged under the two sides of connecting rod tip, including be arranged in pairs right angle platform sling, supporting block, load-bearing bolt group,
And two cross bars and bearing shell suspender, right angle platform sling are separately fixed at connecting rod tip two sides, lifting bolt is separately fixed at cross bar
On the end of both ends, supporting block is located at the downside of two port planes of connecting rod tip, and cross bar both ends are located at supporting block
The downside of transverse ends, and be fixedly connected with supporting block；The upper and lower side of load-bearing bolt group is separately connected right angle platform sling and supporting block,
And the port plane of connecting rod tip and supporting block upside is made to keep a distance；Bearing shell suspender is coated on the outside of bearing shell, bearing shell
The both ends of bearing shell are held at suspender lower part both ends respectively, and travelling crane hook B hangs the upper end of bearing shell suspender.
Further, bearing shell suspender includes a pair of of arc clamp ring, a pair of of claw, two connection bolts and several nuts, with
And a lateral pin, the width of a pair of of the arc clamp ring being oppositely arranged are less than the width of bearing shell, are coated on the middle part on the outside of bearing shell, one
Vertical panel is bent out respectively to arc clamp ring upper end；Claw is L-shaped, and claw upper end and arc clamp ring lower end are solid by fastening screw
Fixed connection, claw lower end is held the lower end plane of bearing shell and is located in supporting block；It is crossed by two a pair of of vertical panel lower end
Connection bolt and be screwed in two nuts on connection bolt and being located on the inside of a pair of of vertical panel and limit the interior of a pair of of vertical panel
Lateral extent, and pass through nut locking a pair of vertical panel on the outside of vertical panel；Lateral pin passes across a pair of of vertical panel and is located in
Thereon, travelling crane hook B hangs lateral pin.
Further, platform sling upper end in right angle is equipped with translot, on rear side of right angle platform sling upper end side corresponding with connecting rod tip it
Between be equipped with distance sink tube, two fastening screws are each passed through translot and distance sink tube, right angle platform sling are separately fixed at connecting rod tip two
On side.
Further, supporting block is arranged in pairs, and supporting block is arranged on the outer end of connecting rod longitudinal center in T-slot, is held
The square toes of the load-bearing bolt lower end of weight bolt group imbed in T-slot, and load-bearing bolt upper end passes through the level board of right angle platform sling, pass through
The nut for being screwed in load-bearing bolt upper end is suspended on supporting block respectively under the two sides of connecting rod tip.It is additionally provided in supporting block parallel
In the U-shaped through slot of connecting rod tip plane, and the recess with linkage plane location matches, claw lower end is located in U-shaped through slot.
Further, cross bar longitudinal direction both ends are respectively equipped with the cross bar through-hole at several intervals, the spacing of the cross bar through-hole with
The spacing of supporting block through-hole is corresponding, and it is big that the perpendicular bolt nut group by passing through cross bar through-hole and supporting block through-hole will be located at connecting rod
The supporting block of end both lateral sides is separately fixed on the both ends of two cross bars.
A method of using the connecting rod bearing shell mounting tool of marine diesel, comprising the following steps:
1) it assembles connecting rod tip and bearing shell supports derricking gear
First according to the lateral dimension of connecting rod tip, corresponding cross bar through-hole is selected on cross bar, then passes through perpendicular bolt spiral shell
Female group is separately fixed at two pieces of supporting blocks on the both ends of two cross bars, finally installs lifting bolt at cross bar both ends respectively；
2) installing connecting rods small end suspender and connecting rod is sling
T type platform sling is separately fixed to the two sides of wrist-pin end of connecting rod, then the upper end of two upper tackles is hung over into travelling crane hook A
On, the lower end of two upper tackles hangs T type platform sling at splayed；Slowly promotion and mobile travelling crane hook A, until connecting rod
Be suspended vertically above supporting block after big end is completely hanging, on connecting rod tip lower plane and supporting block between plane there are one section away from
From；
3) connecting rod tip lifting and bearing shell supporting mechanism are connect with bearing shell
Right angle platform sling and distance sink tube are sequentially fixed at connecting rod tip two sides respectively, load-bearing bolt lower end square toes are then imbedded into T
In type groove, load-bearing bolt upper end passes through the level board of right angle platform sling, and the nut by being screwed in load-bearing bolt upper end makes supporting block point
It is not suspended under the two sides of connecting rod tip；
4) bearing shell suspender is installed
A pair of of arc clamp ring is placed on to the outer middle side part of bearing shell, then two connection bolts a pair of of arc is passed across into side by side and pressed from both sides
A pair of of vertical panel on ring top adjusts two spiral shells on every connection bolt on the inside of a pair of of vertical panel according to the outer diameter of bearing shell
Mother to adjust the inner distance of a pair of of vertical panel and tighten, then tightens the nut on the outside of vertical panel to lock a pair of of vertical panel；
Lateral pin pass across a pair of of vertical panel and with opening finger setting；Then lateral pin is hung with travelling crane hook B, by bearing shell suspender handling to axis
On watt on middle side part, finally claw is separately fixed on the both ends lower part of bearing shell suspender, claw is made to hold the two of bearing shell respectively
End:
5) bearing shell enters in the arcwall face of connecting rod tip
Promoted travelling crane hook B, by bearing shell suspender by bearing shell handling to connecting rod tip lifting and bearing shell supporting mechanism both ends branch
On bracer, in U-shaped through slot that the claw at bearing shell suspender lower part both ends is respectively enterd to two supporting blocks, make bearing shell vertical centerline
It is aligned with connecting rod vertical centerline, there are gaps between bearing shell end face and connecting rod tip end face；Then claw is removed, to away from company
The horizontal slowly mobile travelling crane hook B in bar direction, makes a pair of of arc clamp ring towards the outside for being laterally moved to bearing shell away from connecting rod direction, dress
Upper clipping claw holds the both ends of bearing shell；A small amount of lifting bearing shell is simultaneously traversing to connecting rod direction, moves bearing shell gradually traversing into connecting rod tip
Inner arc surface under；The inner arc surface of the exterior arc surface and connecting rod tip that pay attention to whole process intermediate bushing is unable to contact-impact；Weight
Removing claw-movement travelling crane hook B keeps a pair of of arc clamp ring traversing-again and loading onto claw-movement travelling crane hook B process makes
Bearing shell is traversing, and 2/3 or more until bearing shell width enters under the inner arc surface of connecting rod tip；Then it dismantles bearing shell suspender, then hand
Dynamic adjustment bearing shell position, until entire bearing shell, completely into connecting rod tip, bearing shell both ends of the surface are concordant with connecting rod tip two sides,
There are no the inner arc surfaces of top connecting rod tip for the exterior arc surface of bearing shell at this time；
6) bearing shell is installed in place
The lower end suspension hook of lower tackles is hung on 4 lifting bolts at two cross bar both ends respectively, and by lower tackles
Upper end suspension hook be all suspended on travelling crane hook B, adjust the length of corresponding tackles, make two cross bars and support thereon
Block is adjusted to horizontality；Rising simultaneously and mobile travelling crane hook A and travelling crane hook B, make connecting rod and connecting rod tips is lifted by crane and axis
Watt supporting mechanism is lifted to the height that operator can be operated under it；Then travelling crane hook A is motionless, and travelling crane hook B is slow
It is slow to rise, while the nut on the load-bearing bolts of connecting rod tip two sides is tightened, by bearing shell, movement moves closer to connecting rod from the bottom up
The inner arc surface of big end, until the exterior arc surface of bearing shell is bonded with the inner arc surface of connecting rod tip；Then it is supported respectively from two pieces
Bearing shell positioning screw is screwed into the port plane of connecting rod tip two sides by the indent of block upward under, fixes bearing shell with connecting rod
Connection, so as to complete the installation of bearing shell.
Tooling of the present invention it is versatile, be able to satisfy different model connecting rod installation bearing shell needs.In connecting rod tip two
Side, which passes through load-bearing bolt and nut group respectively and hung, constitutes bearing shell suspender support platform by two pieces of supporting blocks and two cross bars,
By two travelling crane hooks be fitted to each other move up with it is traversing, band driving box bearing suspender carries bearing shell towards connecting rod tip direction cross
It moves, gradually moves on to bearing shell under the inner arc surface of connecting rod tip, then rise and rotate simultaneously two load-bearing spiral shells by travelling crane hook
The nut of bolt nut group so that bearing shell vertical ascent is bonded to its exterior arc surface with the inner arc surface of connecting rod tip, then is twisted respectively
Enter to complete after bearing shell positioning screw the installation of bearing shell.The present invention substantially increases assembly efficiency, improves assembling quality, eliminates
The hidden danger of safety accident occurs.
The advantages and features of the present invention will be illustrated and explained by the non-limitative illustration of preferred embodiment below,
These embodiments only provide as an example referring to attached drawing.
Detailed description of the invention
Fig. 1 is tooling three-dimensional structure diagram of the invention；
Fig. 2 is the perspective view that the present invention will put into connecting rod tip；
Fig. 3 is the perspective view that the present invention has put into connecting rod tip；
Fig. 4 is the A direction view of Fig. 3.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1, connecting rod bearing shell mounting tool of the invention includes wrist-pin end of connecting rod suspender 1 and connecting rod tip lifting and axis
Watt supporting mechanism 2, wrist-pin end of connecting rod suspender 1 include the T type platform sling 11 for being separately positioned on 10 two sides of wrist-pin end of connecting rod, two upper liftings
The upper end of cucurbit 4 is hung on travelling crane hook A6, and the lower end of two upper tackles 4 hangs T type platform sling 11 at splayed.
Connecting rod tip lifting and bearing shell supporting mechanism 2 are arranged under the two sides of connecting rod tip 20, straight including what is be arranged in pairs
Angle platform sling 21, supporting block 22, load-bearing bolt group 23 and two cross bars 24 and bearing shell suspender 3, right angle platform sling 21 are flat using two pieces
Plate is vertically formed by fixedly connecting, and is separately fixed at the two sides of connecting rod tip 20, and platform sling 21 upper end in right angle is equipped with translot 211, right angle
Distance sink tube 25 is equipped on rear side of 21 upper end of platform sling between side corresponding with connecting rod tip 20, two fastening screws 26 are each passed through cross
Right angle platform sling 21 is separately fixed on 20 two sides of connecting rod tip by slot 211 and distance sink tube 25.By the spacing for selecting appropriate length
Pipe 25 compensates the gap between right angle platform sling 21 and connecting rod tip 20, it is ensured that a pair of of right angle platform sling 21 is installed in place.
Lifting bolt 26 is separately fixed on 24 both ends end of cross bar, and supporting block 22 is located at two of connecting rod tip 20
The downside of port plane 201,24 both ends of cross bar are located at the downside of 22 transverse ends of supporting block, and fix and connect with supporting block 22
It connects.The upper and lower side of load-bearing bolt group 23 is separately connected right angle platform sling 21 and supporting block 22, and makes the port plane of connecting rod tip 20
A distance is kept on the upside of supporting block 22.Bearing shell suspender 3 is coated on the outside of bearing shell 30,3 lower part both ends of bearing shell suspender difference
The both ends of bearing shell 30 are held, travelling crane hook B7 hangs the upper end of bearing shell suspender 3.
Bearing shell suspender 3 includes 32, two a pair of of arc clamp ring 31, a pair of of claw connection bolt 33 and 6 nuts 34, and
A piece lateral pin 35, the width for a pair of of the arc clamp ring 31 being oppositely arranged are less than the width of bearing shell 30, are coated on 30 outside of bearing shell
Middle part, a pair of of 31 upper end of arc clamp ring bend out vertical panel 311 respectively.
Claw 32 is L-shaped, and 32 upper end of claw is fixedly connected with 31 lower end of arc clamp ring by 2 fastening screws 33, claw
It holds the lower end plane of bearing shell 30 and is located in supporting block 22 in 32 lower ends.What a pair of of 311 lower end of vertical panel was crossed by two
It connects bolt 34 and is screwed in two nuts 35 for connecting on bolt 34 and being located on the inside of a pair of of vertical panel 311 and limit a pair vertically
The inner distance of plate 311, and a pair of of vertical panel 311 is locked by a nut 35 in 311 outside of vertical panel.Lateral pin 35 passes across
A pair of of vertical panel 311 is simultaneously positioned on by split pin 36, and travelling crane hook B7 hangs lateral pin 36.
Supporting block 22 is arranged in pairs, and supporting block 22 is arranged on the outer end of connecting rod longitudinal center in T-slot 221, load-bearing
The square toes of 231 lower end of load-bearing bolt of bolt group 23 imbed in T-slot 221, and 231 upper end of load-bearing bolt passes through right angle platform sling 21
Level board 211, the nut 232 by being screwed in 231 upper end of load-bearing bolt make supporting block 22 be suspended on the two of connecting rod tip 20 respectively
Under side.Be additionally provided with the U-shaped through slot 222 for being parallel to 20 plane of connecting rod tip in supporting block 22, and with linkage plane location matches
Recess 223,32 lower end of claw is located in U-shaped through slot 222, convenient for the initial alignment of bearing shell suspender 3.
The longitudinal both ends of cross bar 24 are respectively equipped with the cross bar through-hole 241 at 4 intervals, the spacing and branch of the cross bar through-hole 241
The spacing of bracer through-hole 224 is corresponding, is able to satisfy the needs of the connecting rod installation bearing shell 30 of different model.By passing through cross bar through-hole
241 and supporting block through-hole 223 perpendicular bolt nut group 37 will be located at 20 both lateral sides of connecting rod tip supporting block 22 it is solid respectively
It is scheduled on the both ends of two cross bars 24.
A method of using the connecting rod bearing shell mounting tool of marine diesel, comprising the following steps:
1) it assembles connecting rod tip and bearing shell supports derricking gear 2
First according to the lateral dimension of connecting rod tip 20, corresponding cross bar through-hole 241 is selected on cross bar 24, then by vertical
Two pieces of supporting blocks 22 are separately fixed on the both ends of two cross bars 24 by bolt and nut group 37, are finally pacified respectively at 24 both ends of cross bar
Fill lifting bolt 26.
2) installing connecting rods small end suspender 1 and connecting rod is sling
T type platform sling 11 is separately fixed to the two sides of wrist-pin end of connecting rod 10, then the upper end of two upper tackles 4 is hung over into driving
On suspension hook A6, the lower end of two upper tackles 4 hangs T type platform sling 11 at splayed.Slowly promotion and mobile travelling crane hook
A6, until connecting rod tip 20 completely vacantly on the top of supporting block 22,20 lower plane of connecting rod tip and supporting block 22 plane it
Between there are a distances.
3) connecting rod tip lifting and bearing shell supporting mechanism 2 are connect with bearing shell 30
Right angle platform sling 21 and distance sink tube 25 are sequentially fixed at 30 two sides of connecting rod tip respectively, as shown in Fig. 2, level board 211 exists
The downside of vertical panel 212 then imbeds 23 lower end square toes of load-bearing bolt in T-slot 221, and 231 upper end of load-bearing bolt passes through straight
The level board 211 of angle platform sling 21, the nut 232 by being screwed in 231 upper end of load-bearing bolt make supporting block 22 be suspended on connecting rod respectively
Under the two sides of big end 20.When the vertical range of plane on 20 two sides both the above threaded hole to supporting block 22 of connecting rod tip is close or
Less than right angle platform sling 21 length when, right angle platform sling 21 must reverse 180 ° of installations at this time, i.e., level board 211 is in vertical panel 212
Upside
4) bearing shell suspender is installed
As shown in Fig. 2, a pair of of arc clamp ring 31 to be placed on to the outer middle side part of bearing shell 30, then side by side by two connection bolts 34
A pair of of the vertical panel 311 for passing across a pair of of 31 top of arc clamp ring adjusts a pair of of vertical panel according to the outer diameter of bearing shell 30
Two nuts 35 on every connection bolt 34 of 311 insides, thus adjust the inner distance of a pair of of vertical panel 311 and tighten,
Tighten the nut 35 in 311 outside of vertical panel again to lock a pair of of vertical panel 311.Lateral pin 35 passes across a pair of of vertical panel 311 and is used in combination
Split pin 36 positions；Then lateral pin 36 is hung with travelling crane hook B7, by 3 handling to bearing shell 30 of bearing shell suspender on middle side part, most
Claw 32 is separately fixed on the both ends lower part of bearing shell suspender 3 afterwards, claw 32 is made to hold the both ends of bearing shell 30 respectively.
5) bearing shell 30 is installed in place
As shown in figure 3, promoted travelling crane hook B7, by bearing shell suspender 3 by 30 handling of bearing shell to connecting rod tip lifting and bearing shell branch
In the supporting block 22 at 1 both ends of support mechanism, the claw 32 at 3 lower part both ends of bearing shell suspender is respectively enterd into the U-shaped of two supporting blocks 22
In through slot 222, be aligned 30 vertical centerline of bearing shell with connecting rod vertical centerline, 30 end face of bearing shell and 20 end face of connecting rod tip it
Between there are gaps.Then claw 32 is removed, to away from the horizontal slowly mobile travelling crane hook B7 in connecting rod direction, makes a pair of of arc clamp ring
31, towards the outside for being laterally moved to bearing shell 30 away from connecting rod direction, load onto the both ends that claw 32 holds bearing shell 30.A small amount of lifting bearing shell
30 and traversing to connecting rod direction, move bearing shell 30 gradually traversing into connecting rod tip 20.Pay attention to the outer of whole process intermediate bushing 30
Arc surface 301 and the inner arc surface 201 of connecting rod tip 20 are unable to contact-impact.Repetition removes the mobile travelling crane hook B7 of claw 32-
Make a pair of of arc clamp ring 31 it is traversing-process of loading onto the mobile travelling crane hook B7 of claw 32-keeps bearing shell 30 traversing, until bearing shell 30
2/3 or more of width enters in the inner arc surface 201 of connecting rod tip 20.Then it dismantles bearing shell suspender 3, then manually adjusts bearing shell 30
Position, until entire bearing shell 30, completely into connecting rod tip 20,30 both ends of the surface of bearing shell are concordant with 20 two sides of connecting rod tip, this
When bearing shell 30 exterior arc surface 301 not yet top connecting rod tip 20 inner arc surface 201.
6) bearing shell 30 is installed in place
On 4 lifting bolts 26 that the lower end suspension hook of lower tackles 5 is hung over to two 24 both ends of cross bar respectively, and by lower lifting
The upper end suspension hook of cucurbit 5 is all suspended on travelling crane hook B7, is adjusted the length of corresponding lower tackles 5, is made two cross bars 24
And supporting block 22 thereon is adjusted to horizontality.Rise simultaneously mobile travelling crane hook A6 and travelling crane hook B7 simultaneously, make connecting rod and
Connecting rod tip lifting and bearing shell supporting mechanism 2 are lifted to the height that operator can be operated under it.Then travelling crane hook
A6 is motionless, and travelling crane hook B7 slowly rises, while tightening the nut 232 on the load-bearing bolts 231 of connecting rod tip two sides, by bearing shell
30 move the inner arc surface 201 for moving closer to connecting rod tip 20 from the bottom up, until the exterior arc surface 301 and connecting rod of bearing shell 30 are big
The inner arc surface 201 at end 20 is bonded.Then as shown in figure 4, bearing shell is positioned spiral shell from the recess 223 of two pieces of supporting blocks 22 respectively
Nail 8 is screwed into upward in the port plane of 20 two sides of connecting rod tip under, is fixedly connected with bearing shell 30 with connecting rod, so as to complete axis
Watts 30 installation.
In addition to the implementation, the present invention can also have other embodiments, all to use equivalent substitution or equivalent transformation shape
At technical solution, be all fallen within the protection domain of application claims.
Claims (7)
1. a kind of connecting rod bearing shell mounting tool of marine diesel, it is characterised in that: including wrist-pin end of connecting rod suspender and connecting rod tip
Lifting and bearing shell supporting mechanism, the wrist-pin end of connecting rod suspender include the T type platform sling for being separately positioned on wrist-pin end of connecting rod two sides, and two
The upper end of upper tackles is hung on travelling crane hook A, and the lower end of two upper tackles hangs T type platform sling at splayed；Connecting rod
Big end lifting and bearing shell supporting mechanism be arranged under the two sides of connecting rod tip, including be arranged in pairs right angle platform sling, supporting block, hold
Weight bolt group and two cross bars and bearing shell suspender, right angle platform sling are separately fixed at connecting rod tip two sides, and lifting bolt is solid respectively
It is scheduled on the end of cross bar both ends, supporting block is located at the downside of two port planes of connecting rod tip, and position is distinguished at cross bar both ends
It is fixedly connected in the downside of supporting block transverse ends, and with supporting block；The upper and lower side of load-bearing bolt group is separately connected right angle platform sling
And supporting block, and the port plane of connecting rod tip and supporting block upside is made to keep a distance；Bearing shell suspender is coated on bearing shell
The both ends of bearing shell are held at outside, bearing shell suspender lower part both ends respectively, and travelling crane hook B hangs the upper end of bearing shell suspender.
2. the connecting rod bearing shell mounting tool of marine diesel as described in claim 1, it is characterised in that: bearing shell suspender includes one
Arc clamp ring, a pair of of claw, two connection bolts and several nuts and a lateral pin, a pair of of the arc being oppositely arranged are pressed from both sides
The width of ring is less than the width of bearing shell, is coated on the middle part on the outside of bearing shell, a pair of of arc clamp ring upper end bends out vertical panel respectively；
Claw is L-shaped, and claw upper end is fixedly connected with arc clamp ring lower end by fastening screw, and claw lower end is held holds level with both hands under bearing shell
Face is simultaneously located in supporting block；A pair of of vertical panel lower end by two connection bolts crossed and be screwed in connection bolt on and position
Two nuts on the inside of a pair of of vertical panel limit the inner distance of a pair of of vertical panel, and pass through a nut on the outside of vertical panel
Lock a pair of of vertical panel；Lateral pin passes across a pair of of vertical panel and is positioned on, and travelling crane hook B hangs lateral pin.
3. the connecting rod bearing shell mounting tool of marine diesel as described in claim 1, it is characterised in that: right angle platform sling upper end is set
There is translot, is equipped with distance sink tube between side corresponding with connecting rod tip on rear side of right angle platform sling upper end, two fastening screws are worn respectively
Translot and distance sink tube are crossed, right angle platform sling is separately fixed on connecting rod tip two sides.
4. the connecting rod bearing shell mounting tool of marine diesel as described in claim 1, it is characterised in that: supporting block is set in pairs
It sets, supporting block is arranged on the outer end of connecting rod longitudinal center in T-slot, and the square toes of the load-bearing bolt lower end of load-bearing bolt group are embedding
Into in T-slot, load-bearing bolt upper end passes through the level board of right angle platform sling, and the nut by being screwed in load-bearing bolt upper end makes supporting block
It is suspended under the two sides of connecting rod tip respectively.
5. the connecting rod bearing shell mounting tool of marine diesel as described in claim 1, it is characterised in that: also set in supporting block
Be parallel to the U-shaped through slot of connecting rod tip plane, and with the matched recess in connecting rod tip plan-position, claw lower end is located in
In U-shaped through slot.
6. the connecting rod bearing shell mounting tool of marine diesel as described in claim 1, it is characterised in that: cross bar longitudinal direction both ends point
Not She You several intervals cross bar through-hole, the spacing of the cross bar through-hole is corresponding with the spacing of supporting block through-hole, by pass through cross
The supporting block for being located at connecting rod tip both lateral sides is separately fixed at two by the perpendicular bolt nut group of rod through-hole and supporting block through-hole
On the both ends of root cross bar.
7. a kind of method of the connecting rod bearing shell mounting tool using marine diesel as described in claim 1, it is characterised in that: packet
Include following steps:
1) lifting of assembly connecting rod tip and bearing shell supporting mechanism
First according to the lateral dimension of connecting rod tip, corresponding cross bar through-hole is selected on cross bar, then passes through perpendicular bolt spiral shell
Female group is separately fixed at two pieces of supporting blocks on the both ends of two cross bars, finally installs lifting bolt at cross bar both ends respectively；
Installing connecting rods small end suspender simultaneously slings connecting rod
T type platform sling is separately fixed to the two sides of wrist-pin end of connecting rod, then the upper end of two upper tackles is hung over into travelling crane hook A
On, the lower end of two upper tackles hangs T type platform sling at splayed；Slowly promotion and mobile travelling crane hook A, until connecting rod
Vacantly there are a distances between plane on the top of supporting block, connecting rod tip lower plane and supporting block completely for big end；
3) connecting rod tip lifting and bearing shell supporting mechanism are connect with bearing shell
Right angle platform sling and distance sink tube are sequentially fixed at connecting rod tip two sides respectively, load-bearing bolt lower end square toes are then imbedded into T
In type groove, load-bearing bolt upper end passes through the level board of right angle platform sling, and the nut by being screwed in load-bearing bolt upper end makes supporting block point
It is not suspended under the two sides of connecting rod tip
4) bearing shell suspender is installed
A pair of of arc clamp ring is placed on to the outer middle side part of bearing shell, then two connection bolts a pair of of arc is passed across into side by side and pressed from both sides
A pair of of vertical panel on ring top adjusts two spiral shells on every connection bolt on the inside of a pair of of vertical panel according to the outer diameter of bearing shell
Mother to adjust the inner distance of a pair of of vertical panel and tighten, then tightens the nut on the outside of vertical panel to lock a pair of of vertical panel；
Lateral pin pass across a pair of of vertical panel and with opening finger setting；Then lateral pin is hung with travelling crane hook B, by bearing shell suspender handling to axis
On watt on middle side part, finally claw is separately fixed on the both ends lower part of bearing shell suspender, claw is made to hold the two of bearing shell respectively
End:
5) bearing shell enters in the arcwall face of connecting rod tip
Promoted travelling crane hook B, by bearing shell suspender by bearing shell handling to connecting rod tip lifting and bearing shell supporting mechanism both ends branch
On bracer, in U-shaped through slot that the claw at bearing shell suspender lower part both ends is respectively enterd to two supporting blocks, make bearing shell vertical centerline
It is aligned with connecting rod vertical centerline, there are gaps between bearing shell end face and connecting rod tip end face；Then claw is removed, to away from company
The horizontal slowly mobile travelling crane hook B in bar direction, makes a pair of of arc clamp ring towards the outside for being laterally moved to bearing shell away from connecting rod direction, dress
Upper clipping claw holds the both ends of bearing shell；A small amount of lifting bearing shell is simultaneously traversing to connecting rod direction, moves bearing shell gradually traversing into connecting rod tip
Inner arc surface under；The inner arc surface of the exterior arc surface and connecting rod tip that pay attention to whole process intermediate bushing is unable to contact-impact；Weight
Removing claw-movement travelling crane hook B keeps a pair of of arc clamp ring traversing-again and loading onto claw-movement travelling crane hook B process makes
Bearing shell is traversing, and 2/3 or more until bearing shell width enters in connecting rod tip；Then it dismantles bearing shell suspender, then manually adjusts bearing shell
Position, until entire bearing shell, completely under the inner arc surface of connecting rod tip, bearing shell both ends of the surface are concordant with connecting rod tip two sides,
There are no the inner arc surfaces of top connecting rod tip for the exterior arc surface of bearing shell at this time；
6) bearing shell is installed in place
The lower end suspension hook of lower tackles is hung on 4 lifting bolts at two cross bar both ends respectively, and by lower tackles
Upper end suspension hook be all suspended on travelling crane hook B, adjust the length of corresponding lower tackles, make two cross bars and branch thereon
Bracer is adjusted to horizontality；Rise simultaneously mobile travelling crane hook A and travelling crane hook B simultaneously, make connecting rod and connecting rod tip lift by crane and
Bearing shell supporting mechanism is lifted to the height that operator can be operated under it；Then travelling crane hook A is motionless, travelling crane hook B
Slowly rise, while tightening the nut on the load-bearing bolts of connecting rod tip two sides, by the bearing shell mobile company of moving closer to from the bottom up
The inner arc surface of bar big end, until the exterior arc surface of bearing shell is bonded with the inner arc surface of connecting rod tip；Then respectively from two pieces of branch
Bearing shell positioning screw is screwed into the port plane of connecting rod tip two sides by the indent of bracer upward under, keeps bearing shell and connecting rod solid
Fixed connection, so as to complete the installation of bearing shell.
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| CN201811283389.XA CN109048299B (en) | 2018-10-31 | 2018-10-31 | Connecting rod bearing bush mounting tool and method for marine diesel engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811283389.XA CN109048299B (en) | 2018-10-31 | 2018-10-31 | Connecting rod bearing bush mounting tool and method for marine diesel engine |
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| CN109048299A true CN109048299A (en) | 2018-12-21 |
| CN109048299B CN109048299B (en) | 2023-10-10 |
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| CN110104542A (en) * | 2019-06-14 | 2019-08-09 | 中船动力有限公司 | Connecting rod bearing shell lifting tool and hoisting method |
| CN111716283A (en) * | 2020-06-28 | 2020-09-29 | 上海中船三井造船柴油机有限公司 | Jacking device for crankshaft and method for disassembling lower main bearing bush |
| CN112123267A (en) * | 2020-10-23 | 2020-12-25 | 中船动力有限公司 | Marine diesel connecting rod dismantles frock |
| CN113845020A (en) * | 2021-09-24 | 2021-12-28 | 中车长春轨道客车股份有限公司 | Special lifting appliance with brake disc wheels |
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