CN102284925B - Tool and method for replacing shaft bushing at big end of connecting rod of diesel engine of million-kilowatt-class nuclear power plant - Google Patents
Tool and method for replacing shaft bushing at big end of connecting rod of diesel engine of million-kilowatt-class nuclear power plant Download PDFInfo
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- CN102284925B CN102284925B CN201110236270.9A CN201110236270A CN102284925B CN 102284925 B CN102284925 B CN 102284925B CN 201110236270 A CN201110236270 A CN 201110236270A CN 102284925 B CN102284925 B CN 102284925B
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Abstract
The invention discloses a tool and method for replacing a shaft bushing at the big end of a connecting rod of a diesel engine of a million-kilowatt-class nuclear power plant. The replacing tool comprises a main connecting rod-side piston positioning and adjusting tool and an auxiliary connecting rod-side piston connecting rod component positioning tool, wherein the auxiliary connecting rod-side piston connecting rod component positioning tool is arranged between the upper surface of a balancing block of a crankshaft of the diesel engine and the lower bottom surface of an auxiliary connecting rod cylinder; and the main connecting rod-side piston positioning and adjusting tool extends into a main connecting rod cylinder, and a jacking part on the main connecting rod-side piston positioning tool is used for jacking up a piston in the main connecting rod cylinder so as to facilitate the separation of a main connecting rod from an auxiliary connecting rod. By adopting the tool and method for replacing the shaft bushing at the big end of the connecting rod of the diesel engine, the disassembly of affiliated pipelines of related cooling water, lubricating oil, fuel oil and other systems, the removal of a cylinder head component of the diesel engine, the integral lifting-out of a piston connecting rod component and other conventional replacement works are not required when the shaft bushing is replaced, and a crankshaft bearing is directly replaced from an observation hole, thereby greatly saving the working time, obviously shortening the maintenance working period on the premise of not reducing the reliability, and lowering the maintenance cost.
Description
Technical field
The present invention relates to the key technology in the power supply system of million kilowatt nuclear power station, more particularly, relate to a kind of million kilowatt nuclear power station emergency diesel engine and can not dismantle the related accessories such as cylinder head, directly can complete by peep hole door instrument and the method that the large end bearing shell of diesel engine connecting bar more changes jobs.
Background technology
The replacing of the connecting rod bearing shell of the emergency diesel engine in the power supply system of million kilowatt nuclear power station, need the subsidiary pipeline of the systems such as the relevant cooling water of dismounting, lubricating oil, fuel oil, the cylinder head assembly that takes off diesel engine, then entirety hangs out piston rod part, then carries out the replacing of connecting rod bearing shell.Conventionally change the connecting rod bearing shell of two diesel engines of a row emergency power supply, interior, need the time of at least 9 days and the experienced operator of 16 left and right containing the running-in test after maintenance.In addition, also need to spend the spare part expense of 100,000 Euros of left and right.If according to conventional replacing scheme, the parts amount of dismounting, the manpower expending and physics cost are very large, and the quadratic risk function being brought by maintenance also can increase thereupon.
Summary of the invention
A technical problem to be solved by this invention is, need to expend a large amount of huge defects of manpower and materials cost, workload for the above-mentioned routine replacement scheme of prior art, provide diesel engine connecting bar large end bearing shell in a kind of million kilowatt nuclear power station to change instrument and method.
Another technical problem to be solved by this invention is, need to expend a large amount of huge defects of manpower and materials cost, workload for the above-mentioned routine replacement scheme of prior art, the large end bearing shell of a kind of million kilowatt nuclear power station diesel engine connecting bar replacing method is provided.
The technical scheme that the present invention solves its technical problem employing is: construct the large end bearing shell of a kind of million kilowatt nuclear power station diesel engine connecting bar and change instrument, comprise master connecting-rod side piston location adjustment instrument, and be located at the slave connecting rod side piston rod part orientation tool between upper surface and the slave connecting rod cylinder bottom surface of diesel engine crankshaft balance block.
Described master connecting-rod side piston location adjustment instrument comprises pedestal, be arranged on screens portion on described pedestal and that match with master connecting-rod cylinder bore diameter size and be arranged on movably the jacking part in described screens portion.
Described pedestal comprises vertical component effect and the horizontal part vertical with described vertical component effect.
Described vertical component effect is provided with horizontal part described in the horizontal location jackscrew for clamping master connecting-rod cylinder lateral wall and is provided with vertical adjustment jackscrew, and described vertical adjustment jackscrew is through described screens portion, contacts with the lower surface of the jacking part in described screens portion.
Described screens portion stretches in described master connecting-rod cylinder, by described jacking part by the piston in described master connecting-rod cylinder upwards jack-up so that the separating of described master connecting-rod and slave connecting rod.
Described screens portion is arc fixture block, and the jacking part in described screens portion is the arc jacking block that radius of curvature equates with described arc fixture block radius of curvature; The side edge-justified calibrations of the lateral edges of described arc jacking block and described arc fixture block.
The radius of curvature of described arc fixture block and arc jacking block is 120mm.
Described jacking part is the circular jacking block being arranged on described vertical adjustment jackscrew.
Described slave connecting rod side piston rod part orientation tool comprises handle and is arranged on the curved lip block in surface that has on described handle; The radius of curvature of the curved surfaces of described lip block equates with the radius of curvature of diesel engine crankshaft balance block, on the surface relative with the curved surfaces of described lip block, be also provided with anti-sideslip boss, the inner side of described anti-sideslip boss and diesel engine crankshaft balance block contacts side surfaces.
The large end bearing shell of described diesel engine connecting bar is changed instrument and is also comprised the support bar separating with slave connecting rod bent axle for auxiliary slave connecting rod bearing shell.
Described support bar is stainless steel tube, and the diameter of described stainless steel tube is Φ 30mm, and length is 160mm.
The large end bearing shell of described diesel engine connecting bar is changed the height measurement piece that instrument also comprises the jacking part jack-up height for measuring described master connecting-rod side piston location adjustment instrument.
Described height is measured piece and is comprised base portion, is located on described base portion and the measurement section vertical with described base portion, and a side of described measurement section is curved, and the radius of curvature of described arcuate flanks equates with the radius of curvature of master connecting-rod cylinder.
The height of described measurement section is 30mm.
Another technical scheme that the present invention solves its technical problem employing is: construct the large end bearing shell of a kind of million kilowatt nuclear power station diesel engine connecting bar replacing method, comprise the following steps:
1) diesel engine crankshaft balance block is turned to the appropriate location of slave connecting rod cylinder liner bottom, split out the locking iron wire of major and minor connecting rod fastening bolt and split pin, then retain one of them fastening bolt, pull down the fastening bolt that residue connects described major and minor connecting rod tip;
2) master connecting-rod side piston location adjustment instrument described above is installed on above-mentioned master connecting-rod cylinder;
3) slave connecting rod side piston rod part orientation tool described above is mounted between diesel engine crankshaft balance block and slave connecting rod cylinder;
4) rotation master connecting-rod side piston location adjust tool base vertical component effect horizontal location jackscrew until one end of described horizontal location jackscrew slave connecting rod cylinder outer wall is held out against;
5) the vertical adjustment jackscrew of tool base horizontal part is adjusted until the jacking part of master connecting-rod side piston location adjustment instrument contacts with master connecting-rod cylinder piston bottom in rotation master connecting-rod side piston location, removes remaining fastening bolt in step 1);
6) continue the described vertical adjustment jackscrew of rotation, until the bearing shell of major and minor connecting rod is separated;
7) take out and be positioned at the indoor bearing shell of described major and minor connecting rod bearing shell.
Described step 6) is also included in the process of the described vertical adjustment jackscrew of rotation, above-mentioned height is measured to piece and put into described master connecting-rod cylinder, and make described height measure the arcuate flanks of measurement section and the laminating of the inwall of described master connecting-rod cylinder of piece.
The large end bearing shell replacing instrument of million kilowatt nuclear power of the present invention station diesel engine connecting bar and method are compared with the prior art has following beneficial effect:
While changing bearing shell, do not need to dismantle the subsidiary pipeline of the systems such as relevant cooling water, lubricating oil, fuel oil, and cylinder head assembly, the entirety of taking off diesel engine hang out the routine replacement work such as piston rod part, but directly change crankshaft bearing from peep hole, man-hour can be saved in a large number, do not reducing under the prerequisite of reliability, obviously shorten the maintenance duration, reduced maintenance cost.
Brief description of the drawings
Fig. 1 is the cutaway view of diesel engine;
Fig. 2 is the structural representation that the master connecting-rod side piston of replacing execution of instrument example 1 of the present invention is adjusted instrument;
Fig. 3 is the installation diagram that the master connecting-rod side piston of Fig. 2 is adjusted instrument;
Fig. 4 is the structural representation that the slave connecting rod side piston of replacing execution of instrument example 1 of the present invention is adjusted instrument;
Fig. 5 is the installation diagram that the slave connecting rod side piston of Fig. 4 is adjusted instrument;
Fig. 6 is the structural representation that the height of replacing execution of instrument example 1 of the present invention is measured piece.
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, the invention will be further described:
Embodiment 1
Diesel engine connecting bar large end bearing shell in million kilowatt nuclear power of the present invention station is changed instrument, comprises master connecting-rod side piston location adjustment instrument, slave connecting rod side piston rod part orientation tool.Wherein, adjustment instrument in master connecting-rod side piston location comprises pedestal, is arranged on screens portion 102 on pedestal and that match with master connecting-rod cylinder 4 internal diameter sizes and is arranged on movably the jacking part 103 in screens portion 102.
As shown in Figure 1, conventionally, the weight of diesel engine piston link assembly is supported on bent axle completely, if wanting solution never dismantles under the prerequisite of the related accessories such as cylinder head, directly complete the replacing of connecting rod bearing shell 8 by peep hole door, just must solve the piston rod part of diesel engine in the support problem of internal body, otherwise after the connecting bolt of major and minor connecting rod decomposes, piston rod part will be because gravity be directly from landing in cylinder jacket to crankcase.With
the large end bearing shell of UD45V12S6 diesel engine connecting bar be replaced by example, according to the characteristic of this diesel engine, the coasting distance of slave connecting rod side piston is 230mm, compared with the coasting distance 220mm of master connecting-rod side piston, the long 10mm of piston.When slave connecting rod piston is during in lower dead point position, remain basically stable in the bottom of piston skirt end and cylinder sleeve.The now below of the crankshaft counter balance 6 of diesel engine in slave connecting rod cylinder, if the piston rod part of slave connecting rod is supported in this position, can solve the support problem of the piston rod part of slave connecting rod side.
Therefore, as shown in Figure 5, slave connecting rod side piston rod part orientation tool of the present invention is to be located between the upper surface of diesel engine crankshaft balance block 6 and the bottom surface of slave connecting rod cylinder 3, the screens portion 102 of master connecting-rod side piston location adjustment instrument 1 stretches in master connecting-rod cylinder 4, by jacking part 103 by the piston in master connecting-rod cylinder 4 upwards jack-up so that the separating of master connecting-rod and slave connecting rod.
As Figure 2-3; the pedestal of above-mentioned master connecting-rod side piston location adjustment instrument 1 comprises vertical component effect 104 and the horizontal part 105 vertical with vertical component effect 104; simultaneously in order to facilitate the location of master connecting-rod side piston location adjustment instrument 1 on master connecting-rod cylinder 4; on vertical component effect 104, be also provided with the horizontal location jackscrew 106 for clamping master connecting-rod cylinder 4 lateral walls; and to be on the safe side, two or more horizontal location jackscrews 106 can be set conventionally.Further, on horizontal part 105, be also provided with vertical adjustment jackscrew 107, this vertical jackscrew 107 of adjusting is through screens portion 102, be connected with the lower surface of jacking part 103, can adjust the relative position of jacking part 103 and screens portion 102 by rotating vertical adjustment jackscrew 107, along with the rising of jacking part 103, piston in master connecting-rod cylinder 4 also can be thereupon by jack-up, so just ensure that, in the time that connecting bolt is removed, master connecting-rod assembly can not drop, thereby plays a supporting role.
Above-mentioned screens portion 102 is an arc fixture block, its radius of curvature equates with the radius of master connecting-rod cylinder 4 cylinder sleeves, jacking part 103 is the arc jacking block equating with arc fixture block radius of curvature, the center of curvature of arc jacking block does not overlap with the center of curvature of arc fixture block, but in the side edge-justified calibrations of lateral edges and the arc fixture block of arc jacking block.Screens portion 102 can be also the circular fixture block that external diameter equates with master connecting-rod cylinder 4 internal diameters, and jacking part 103 is not more than the circular jacking block of circular fixture block for external diameter, now, the center of circular jacking block can with the center superposition of circular fixture block.The radius of curvature of arc fixture block is 120mm, the master connecting-rod cylinder 4 that corresponding cylinder sleeve diameter is 240mm.
As shown in Figure 4, slave connecting rod side piston rod part orientation tool comprises handle 201 and is arranged on the curved lip block in surface that has on handle 201, and the radius of curvature of the curved surfaces 202 of this lip block equates with the radius of curvature of diesel engine crankshaft balance block 6.
On lip block, be also provided with anti-sideslip boss on the surface relative with above-mentioned curved surfaces 202, when lip block snaps onto between crankshaft counter balance 6 and the bottom surface of slave connecting rod cylinder 3 be, the inner side of anti-sideslip boss and diesel engine crankshaft balance block 6 contacts side surfaces, the radius of curvature that the radius of curvature of the medial surface of anti-sideslip boss should slave connecting rod cylinder 3 equates.
Meanwhile, in order to facilitate personnel to operate, this bearing shell is changed instrument can also be equipped with a support bar, so that the separating of auxiliary slave connecting rod bearing shell and bent axle.This support bar adopts stainless steel tube, and the diameter of stainless steel tube is 30mm, and length is 160mm.
As shown in Figure 6, this bearing shell replacing instrument also comprises the height measurement piece 5 for measuring jacking part 103 jack-up height.This is highly measured piece 5 and comprises base portion 501, is located at measurement section 502 on base portion 501 and vertical with base portion 501, and a side of measurement section 502 is curved, and the radius of curvature of arcuate flanks 503 equates with the radius of curvature of above-mentioned master connecting-rod cylinder 4.In the vertical adjustment of rotation jackscrew 107, can put into and highly measure piece 5 in the bottom of master connecting-rod cylinder 4, arcuate flanks 503 is contacted with the inwall of master connecting-rod cylinder 4, and the upper surface of measurement section 502 is contacted with the lower surface of master connecting-rod cylinder 4 inner carriers.The height of measurement section 502 is 30mm.
Embodiment 2
The large end bearing shell of a kind of million kilowatt nuclear power station diesel engine connecting bar replacing method, comprises the following steps:
1) diesel engine crankshaft balance block 6 is turned to the appropriate location of slave connecting rod cylinder 3 cylinder sleeve bottoms, split out the locking iron wire of major and minor connecting rod fastening bolt and split pin, then retain one of them fastening bolt, pull down the fastening bolt that residue connects described major and minor connecting rod tip;
2) master connecting-rod side piston location adjustment instrument is installed;
3) slave connecting rod side piston rod part orientation tool is mounted between diesel engine crankshaft balance block 6 and slave connecting rod cylinder 3;
4) rotate horizontal location jackscrew 106 until one end of horizontal location jackscrew 106 holds out against the outer wall of master connecting-rod cylinder 4;
5) rotation is vertical adjusts jackscrew 107 until jacking part 103 contacts with the piston in master connecting-rod cylinder 4, then, removes the fastening bolt retaining in step 1);
6) continue the vertical jackscrew 107 of adjusting of rotation, until the bearing shell of major and minor connecting rod is separated, in the vertical process of adjusting jackscrew 107 of rotation, put into master connecting-rod cylinder 4 by highly measuring piece 5, and make the arcuate flanks 503 of the measurement section 502 of highly measuring piece 5 and the inwall laminating of master connecting-rod cylinder 4;
7) take out and be positioned at the indoor bearing shell of major and minor connecting rod bearing shell by peep hole.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention; make without departing from the inventive concept of the premise some alternative or obvious modification that are equal to; and performance or purposes identical, all should be considered as belonging to the present invention by the definite scope of patent protection of submitted to claims.
Claims (15)
1. diesel engine connecting bar large end bearing shell in million kilowatt nuclear power station is changed an instrument, it is characterized in that, comprises master connecting-rod side piston location adjustment instrument, slave connecting rod side piston rod part orientation tool; Described master connecting-rod side piston location adjustment instrument comprises pedestal, be arranged on screens portion (102) on described pedestal and that match with master connecting-rod cylinder (4) internal diameter size and be arranged on movably the jacking part (103) in described screens portion (102);
Described slave connecting rod side piston rod part orientation tool is located between the upper surface and slave connecting rod cylinder (3) bottom surface of diesel engine crankshaft balance block (6); The screens portion (102) of described master connecting-rod side piston location adjustment instrument stretches in master connecting-rod cylinder (4), by described jacking part (103) by the piston (401) in described master connecting-rod cylinder (4) upwards jack-up make separating of master connecting-rod and slave connecting rod.
2. diesel engine connecting bar large end bearing shell in million kilowatt nuclear power according to claim 1 station is changed instrument, it is characterized in that, the pedestal of described master connecting-rod side piston location adjustment instrument comprises vertical component effect (104) and the horizontal part (105) vertical with described vertical component effect (104), and described vertical component effect (104) is provided with the horizontal location jackscrew (106) for clamping described master connecting-rod cylinder (4) lateral wall.
3. diesel engine connecting bar large end bearing shell in million kilowatt nuclear power according to claim 2 station is changed instrument, it is characterized in that, described horizontal part (105) is provided with vertical adjustment jackscrew (107), described vertical adjustment jackscrew (107), through described screens portion (102), contacts with the lower surface of described jacking part (103).
4. diesel engine connecting bar large end bearing shell in million kilowatt nuclear power according to claim 3 station is changed instrument, it is characterized in that, described screens portion (102) is arc fixture block, and described jacking part (103) are the arc jacking block equating with described arc fixture block radius of curvature; The side edge-justified calibrations of the lateral edges of described arc jacking block and described arc fixture block.
5. diesel engine connecting bar large end bearing shell in million kilowatt nuclear power according to claim 4 station is changed instrument, it is characterized in that, the radius of curvature of described arc fixture block is 120mm.
6. diesel engine connecting bar large end bearing shell in million kilowatt nuclear power according to claim 3 station is changed instrument, it is characterized in that, described jacking part (103) are for being arranged on the circular jacking block on described vertical adjustment jackscrew (107).
7. diesel engine connecting bar large end bearing shell in million kilowatt nuclear power according to claim 1 station is changed instrument, it is characterized in that, described slave connecting rod side piston rod part orientation tool comprises handle (201) and is arranged on the curved lip block in surface that has on described handle (201); The radius of curvature of the curved surfaces (202) of described lip block equates with the radius of curvature of described diesel engine crankshaft balance block (6).
8. diesel engine connecting bar large end bearing shell in million kilowatt nuclear power according to claim 7 station is changed instrument, it is characterized in that, on the surface relative with described curved surfaces (202), be also provided with anti-sideslip boss, the inner side of described anti-sideslip boss and described diesel engine crankshaft balance block (6) contacts side surfaces.
9. diesel engine connecting bar large end bearing shell in million kilowatt nuclear power according to claim 1 station is changed instrument, it is characterized in that, this replacing instrument also comprises the support bar separating with bent axle for auxiliary slave connecting rod bearing shell.
10. diesel engine connecting bar large end bearing shell in million kilowatt nuclear power according to claim 9 station is changed instrument, it is characterized in that, described support bar is stainless steel tube, and the diameter of described stainless steel tube is 30mm, and length is 160mm.
The large end bearing shell of 11. million kilowatt nuclear power according to claim 1 station diesel engine connecting bar is changed instrument, it is characterized in that, this replacing instrument also comprises the height measurement piece (5) for measuring described jacking part (103) jack-up height.
The large end bearing shell of 12. million kilowatt nuclear power according to claim 11 station diesel engine connecting bar is changed instrument, it is characterized in that, described height is measured piece (5) and is comprised base portion (501), is located at measurement section (502) on described base portion (501) and vertical with described base portion (501), a side (503) of described measurement section (502) is curved, and the radius of curvature of described side (503) equates with the radius of curvature of described master connecting-rod cylinder (4).
The large end bearing shell of 13. million kilowatt nuclear power according to claim 12 station diesel engine connecting bar is changed instrument, it is characterized in that, the height of described measurement section (502) is 30mm.
The 14. 1 kinds of large end bearing shell of million kilowatt nuclear power station diesel engine connecting bar replacing methods, is characterized in that, comprise the following steps:
1) diesel engine crankshaft balance block (6) is turned to the appropriate location of slave connecting rod cylinder (3) cylinder sleeve bottom, split out the locking iron wire of major and minor connecting rod fastening bolt and split pin, then retain one of them fastening bolt, pull down the fastening bolt that residue connects major and minor connecting rod tip;
2) at the upper master connecting-rod side piston location adjustment instrument of installing as described in claim 1-6 any one of described master connecting-rod cylinder (4);
3) the slave connecting rod side piston rod part orientation tool as described in claim 1,7-10 any one is mounted between diesel engine crankshaft balance block (6) and slave connecting rod cylinder (3);
4) rotation master connecting-rod side piston location adjust tool base vertical component effect horizontal location jackscrew (106) until one end of described horizontal location jackscrew (106) master connecting-rod cylinder (4) outer wall is held out against;
5) the vertical adjustment jackscrew (107) of tool base horizontal part is adjusted until master connecting-rod side piston adjustment instrument jacking part, location (103) contacts with master connecting-rod cylinder piston (401) bottom in rotation master connecting-rod side piston location, removes remaining fastening bolt in step 1);
6) continue the described vertical adjustment jackscrew of rotation (107), until the bearing shell of major and minor connecting rod (8) is separated;
7) take out and be positioned at the indoor bearing shell of major and minor connecting rod bearing shell (8).
The large end bearing shell of 15. million kilowatt nuclear power according to claim 14 station diesel engine connecting bar replacing method, it is characterized in that, described step 6) is also included in the process of the described vertical adjustment jackscrew of rotation (107), height as described in claim 11-13 any one is measured to piece (5) and put into master connecting-rod cylinder (4), and make described height measure the arcuate flanks of measurement section (502) and the laminating of the inwall of described master connecting-rod cylinder (4) of piece (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110236270.9A CN102284925B (en) | 2011-08-17 | 2011-08-17 | Tool and method for replacing shaft bushing at big end of connecting rod of diesel engine of million-kilowatt-class nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110236270.9A CN102284925B (en) | 2011-08-17 | 2011-08-17 | Tool and method for replacing shaft bushing at big end of connecting rod of diesel engine of million-kilowatt-class nuclear power plant |
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| CN102284925A CN102284925A (en) | 2011-12-21 |
| CN102284925B true CN102284925B (en) | 2014-07-09 |
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| CN201110236270.9A Active CN102284925B (en) | 2011-08-17 | 2011-08-17 | Tool and method for replacing shaft bushing at big end of connecting rod of diesel engine of million-kilowatt-class nuclear power plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850789B (en) * | 2014-02-18 | 2016-01-06 | 南车玉柴四川发动机股份有限公司 | Can the power unit group of integral disassembly, assembly on diesel engine |
| CN103978458B (en) * | 2014-05-21 | 2016-05-18 | 安徽江淮汽车股份有限公司 | A kind of connecting rod on watt press mounting tool |
| CN106695656B (en) * | 2016-11-22 | 2018-05-08 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of bearing shell replacing options of heavy duty gas turbine |
| CN109238726B (en) * | 2018-07-02 | 2020-02-14 | 岭东核电有限公司 | Identification test method for bearing bush of diesel engine of pressurized water reactor nuclear power station |
| CN109048299B (en) * | 2018-10-31 | 2023-10-10 | 中船动力有限公司 | Connecting rod bearing bush mounting tool and method for marine diesel engine |
| CN111716283B (en) * | 2020-06-28 | 2024-01-02 | 上海中船三井造船柴油机有限公司 | Disassembling method of lower main shaft bushing for crankshaft |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4541158A (en) * | 1983-07-05 | 1985-09-17 | Zumwalt Floyd A | Piston and connecting rod removing and installation tool |
| EP0887536A1 (en) * | 1997-06-25 | 1998-12-30 | Wärtsilä NSD Schweiz AG | Process for inspecting a bearing shell and method for removing a connecting rod from a big diesel engine and the tool and engine for doing same |
| US5894769A (en) * | 1997-08-04 | 1999-04-20 | Rogers; Irving F. | Front end alignment tool |
| CN2336928Y (en) * | 1998-08-29 | 1999-09-08 | 林永森 | Mounting and dismounting device for axle bush |
| CN2925770Y (en) * | 2006-07-27 | 2007-07-25 | 宝山钢铁股份有限公司 | Special tool for fastly diattaching connecting-rod axle bush |
| CN201338254Y (en) * | 2008-12-04 | 2009-11-04 | 广州柴油机厂 | Motorship-used connecting rod big-end top brass dismantling device |
| CN201881339U (en) * | 2010-12-01 | 2011-06-29 | 南车洛阳机车有限公司 | Camshaft bearing remover of locomotive diesel engine |
| CN201922408U (en) * | 2011-02-22 | 2011-08-10 | 中国石油天然气股份有限公司 | Connecting rod bearing bush extracting tool |
-
2011
- 2011-08-17 CN CN201110236270.9A patent/CN102284925B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4541158A (en) * | 1983-07-05 | 1985-09-17 | Zumwalt Floyd A | Piston and connecting rod removing and installation tool |
| EP0887536A1 (en) * | 1997-06-25 | 1998-12-30 | Wärtsilä NSD Schweiz AG | Process for inspecting a bearing shell and method for removing a connecting rod from a big diesel engine and the tool and engine for doing same |
| US5894769A (en) * | 1997-08-04 | 1999-04-20 | Rogers; Irving F. | Front end alignment tool |
| CN2336928Y (en) * | 1998-08-29 | 1999-09-08 | 林永森 | Mounting and dismounting device for axle bush |
| CN2925770Y (en) * | 2006-07-27 | 2007-07-25 | 宝山钢铁股份有限公司 | Special tool for fastly diattaching connecting-rod axle bush |
| CN201338254Y (en) * | 2008-12-04 | 2009-11-04 | 广州柴油机厂 | Motorship-used connecting rod big-end top brass dismantling device |
| CN201881339U (en) * | 2010-12-01 | 2011-06-29 | 南车洛阳机车有限公司 | Camshaft bearing remover of locomotive diesel engine |
| CN201922408U (en) * | 2011-02-22 | 2011-08-10 | 中国石油天然气股份有限公司 | Connecting rod bearing bush extracting tool |
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| CN102284925A (en) | 2011-12-21 |
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