CN113894741A - Diesel engine cooling water jacket disassembling tool and disassembling method - Google Patents
Diesel engine cooling water jacket disassembling tool and disassembling method Download PDFInfo
- Publication number
- CN113894741A CN113894741A CN202111284213.8A CN202111284213A CN113894741A CN 113894741 A CN113894741 A CN 113894741A CN 202111284213 A CN202111284213 A CN 202111284213A CN 113894741 A CN113894741 A CN 113894741A
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- cooling water
- water jacket
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- diesel engine
- cylinder sleeve
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- 239000000498 cooling water Substances 0.000 title claims abstract description 124
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000002485 combustion reaction Methods 0.000 claims abstract description 24
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 239000003921 oil Substances 0.000 claims description 18
- 239000002283 diesel fuel Substances 0.000 claims description 12
- 239000010720 hydraulic oil Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 241001669679 Eleotris Species 0.000 claims description 4
- 229910000954 Medium-carbon steel Inorganic materials 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 239000012466 permeate Substances 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 230000003313 weakening effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a tool and a method for disassembling a cooling water jacket of a diesel engine. The bottom of the cooling water jacket in the combustion chamber component to be disassembled is supported on the chassis. The through holes at the upper part of the cooling water jacket are respectively sleeved in the upper ends of the corresponding double-headed screws, the bolt stretchers are respectively screwed at the upper ends of the double-headed screws, and the end surfaces of the lower ends of the bolt stretchers respectively abut against the end surfaces of the upper ends of the cooling water jacket. The disassembly method comprises the steps of 1) cleaning an oil passage hole of the cooling water jacket and blocking an orifice end, 2) screwing a bolt stretcher to the upper end of the double-headed screw respectively, and 3) completing disassembly of the cooling water jacket through multiple pressurization and unloading of the bolt stretcher. The invention greatly improves the disassembly efficiency of the diesel engine combustion chamber part and reduces the disassembly cost of the diesel engine combustion chamber part.
Description
Technical Field
The invention relates to a tool for disassembling a diesel engine component, in particular to a tool and a method for disassembling a combustion chamber component of a diesel engine, and belongs to the technical field of diesel engine maintenance.
Background
The combustion chamber part of the diesel engine consists of a cylinder sleeve, a cooling water jacket and a flame ring, belongs to parts under high-temperature, high-pressure and high-corrosion severe working environments, is also a critical part for explosive work of the diesel engine, and belongs to a key maintenance part. According to the specifications of diesel engine maintenance, the combustion chamber part of a marine diesel engine such as model L32 must be maintained after 6000 hours of operation of the diesel engine, and must be disassembled into three separate parts, namely, a cylinder liner, a cooling water jacket and a flame ring. The combustion chamber which works for 6000 hours in a high-temperature, high-pressure and high-corrosion working environment is seriously corroded inside and cannot be disassembled and assembled in a conventional mode.
Disclosure of Invention
The invention aims to provide a diesel engine cooling water jacket dismounting tool and a diesel engine cooling water jacket dismounting method which are simple in structure and capable of conveniently and quickly disassembling a combustion chamber of a diesel engine.
The invention is realized by the following technical scheme:
a diesel engine cooling water jacket disassembly tool comprises a chassis, a plurality of support rods, 2 double-headed screws and 2 bolt stretchers, wherein the plurality of support rods are vertically and uniformly distributed on the chassis, sleepers are padded at the tops of the support rods, and the bottoms of the support rods are respectively and vertically and fixedly connected with the chassis; 2 diagonally arranged double-threaded screws are positioned between the support rods, and the lower ends of the double-threaded screws are respectively screwed into corresponding threaded holes of the chassis; the bottom of a cooling water jacket in a combustion chamber component consisting of the cooling water jacket, a cylinder sleeve and a flame ring to be disassembled is supported on a chassis through a plurality of soft plates; the through holes at the upper part of the cooling water jacket are respectively sleeved in the upper ends of the corresponding double-headed screws, the bolt stretchers are respectively screwed at the upper ends of the double-headed screws, and the end surfaces of the lower ends of the bolt stretchers respectively abut against the end surfaces of the upper ends of the cooling water jacket.
The object of the invention can be further achieved by the following technical measures:
further, the diameter D of the center distribution circle of the 2 double-head screws is matched with the diameter D1 of the center distribution circle of the through hole at the upper part of the cooling water jacket.
Furthermore, the soft plate is made of copper materials.
Furthermore, the double-end screw is made of medium carbon steel, and the hardening and tempering hardness of the double-end screw is HB 250-290.
Further, the ratio of the distance H1 from the bottom surface of the cooling water jacket to the bottom surface of the cylinder sleeve to the distance H2 from the upper side surface of the sleeper at the top of the support rod to the bottom surface of the cylinder sleeve is as follows: H1/H2=1.21 ~ 1.23.
A method for disassembling a tool by using a cooling water jacket of a diesel engine comprises the following steps:
1) firstly, cleaning the surface of a combustion chamber component detached from a diesel engine, removing oil stains and rust on the surface, and simultaneously introducing compressed air into an oil passage hole on the side surface of a cooling water jacket to remove impurities in the cooling water jacket;
2) cleaning an oil passage hole of the cooling water jacket, filling 0 # diesel oil into the oil passage hole of the cooling water jacket for cleaning, and plugging an orifice of the oil passage hole by using a plug after cleaning and filling 0 # diesel oil, so that the 0 # diesel oil permeates and soaks and lubricates a joint surface of the cylinder sleeve and the cooling water jacket and a joint surface of the cylinder sleeve and the flame ring;
3) the combustion chamber part is arranged on a disassembly tool of a cooling water jacket of a diesel engine, the combustion chamber part is firstly hoisted to a chassis, so that the bottom of a cylinder sleeve is supported on a plurality of soft plates on the upper side of the chassis, and the bottom of the cylinder sleeve is prevented from being damaged by the chassis; then the lower end of the double-head screw rod penetrates through the through holes at the upper parts of the two cooling water jackets on the diagonal line of the cooling water jackets and then is screwed into the threaded holes of the chassis, sleepers are respectively placed at the tops of the supporting rods, and the double-head screw rod plays a role in buffering and protecting the cooling water jackets when the cooling water jackets fall off the sleepers at the top ends of the supporting rods;
4) installing a bolt stretcher, using the bolt stretcher to disassemble the cooling water jacket, and respectively screwing the bolt stretcher to the upper ends of the double-headed screws so that the bottom surface of the bolt stretcher is pressed against the top surface of the cooling water jacket;
4.1) starting a hydraulic oil pump to pressurize the bolt stretcher so as to elastically stretch the double-headed screw, and stabilizing the oil pressure of the bolt stretcher within a range of 14 MPa-15.5 MPa; observing whether a gap is formed between the upper end surface of the cooling water jacket and the top surface of the bolt tensioner, if so, retightening the hydraulic tensioner and then releasing the pressure of the hydraulic oil pump, and pushing the cooling water jacket to move downwards by the reset impact force instantly generated after the stretching elastic force of the double-headed screw disappears;
4.2) if the cooling water jacket moves downwards, repeating the step 4.1) for 3-4 times until the cooling water jacket moves downwards and is completely separated from the flame ring and the cylinder sleeve and falls on sleepers at the tops of a plurality of support rods; and respectively hoisting and conveying the flame ring, the cylinder sleeve and the cooling water jacket to finish the disassembly of the cooling water jacket.
4.3) if the cooling water jacket does not move downwards, the cooling water jacket is not separated from the cylinder sleeve; uniformly knocking the ring surface at the top of the cooling water jacket by using a copper bar, and weakening the static friction force of the binding surface of each part through vibration; and then repeating the processes from 4.1) to 4.2) until the cooling water jacket moves downwards to be completely separated from the flame ring and the cylinder sleeve, respectively hoisting and conveying the flame ring, the cylinder sleeve and the cooling water jacket, and the flame ring and the cylinder sleeve to finish the disassembly of the cooling water jacket.
Further, the soaking time of the No. 0 diesel oil in the step 2) is 24 hours.
The disassembly tool is simple in structure, the disassembly method is convenient and rapid, the hydraulic oil pump is adopted to enable the double-headed screw to generate elastic extension when the bolt stretcher is pressurized, so that a gap is generated between the bottom surface of the bolt stretcher and the top surface of the cooling water jacket, the hydraulic oil pump is unloaded after the bolt stretcher is screwed again, huge impact effect is generated on the cooling water jacket by reset impact force instantly generated when the stretching force of the double-headed screw disappears suddenly, and the cooling water jacket is pushed to move downwards after multiple impacts. The invention solves the problem of disassembling the diesel engine combustion chamber part, greatly improves the disassembling efficiency of the diesel engine combustion chamber part and reduces the disassembling cost of the diesel engine combustion chamber part.
Advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a disassembly tool of the present invention;
fig. 2 is a sectional view a-a of fig. 1.
Detailed Description
The invention is further explained by combining the attached drawings and an embodiment of disassembling the cooling water jacket of the combustion chamber of the marine diesel engine of the model L32.
As shown in fig. 1 and 2, the diesel engine cooling water jacket disassembly tool of the embodiment includes a chassis 1, 4 support rods 2, 2 stud screws 3 and 2 bolt stretchers 4, wherein the 4 support rods 2 with rectangular cross sections are vertically and uniformly distributed on the chassis 1, sleepers 21 are padded at the tops of the support rods 2, and the bottoms of the support rods 2 are respectively and vertically and fixedly connected with the chassis 1 through a plurality of fastening screws. The 2 diagonally arranged double-head screws 3 are positioned between the support rods 2, and the lower ends of the double-head screws 3 are respectively screwed into the corresponding threaded holes 11 of the chassis 1.
The combustion chamber component to be disassembled consists of a cooling water jacket 10, a cylinder sleeve 20 and a flame ring 30, wherein the bottom of the cooling water jacket 10 is supported on the chassis 1 through 4 copper plates 5, and the bottom of the cooling water jacket 10 can be prevented from being damaged when falling. The upper through holes 101 of the cooling water jacket are respectively sleeved in the upper ends of the corresponding double-headed screws 3, the bolt stretchers 4 are respectively screwed at the upper ends of the double-headed screws 3, and the lower end faces of the bolt stretchers 4 respectively abut against the upper end faces of the cooling water jacket 10. The double-end screw 3 is made of medium carbon steel, and the hardening and tempering hardness is HB 250-290, so that the double-end screw has good elasticity. The stud bolt 3 is pressed by the bolt stretcher 4 in threaded connection with the stud bolt to generate elastic extension, so that a gap is generated between the bottom surface of the bolt stretcher 4 and the top surface of the cooling water jacket 10, and the bolt stretcher 4 can be screwed down again; after the hydraulic oil pump is unloaded, the reset impact force generated instantly when the elastic extension of the double-thread screw disappears suddenly generates a huge impact effect on the cooling water jacket, and the cooling water jacket 10 moves downwards until being separated from the cylinder sleeve 20 under the pushing of multiple impacts generated by the repeated loading-unloading circulation of the hydraulic oil pump, so that the problem of disassembling the cooling water jacket 10 is solved.
The diameter D of the central distribution circle of the 2 double-head screws 3 is matched with the diameter D1 of the central distribution circle of the upper through hole 101 of the cooling water jacket. The cooling water jacket 10 is convenient to be sleeved on the 2 double-thread screws 3. The ratio of the distance H1 from the bottom surface of the cooling water jacket 10 to the bottom surface of the cylinder liner to the distance H2 from the upper side surface of the sleeper 21 at the top of the support rod 2 to the bottom surface of the cylinder liner 20: H1/H2= 1.21-1.23, 1.22 in the embodiment, so that the cooling water jacket 10 at the lower end can be conveniently detached and fall on the sleeper 21 at the top of the support rod 2.
A method for disassembling a tool by using a cooling water jacket of a diesel engine comprises the following steps:
1) firstly, the surface of a combustion chamber component detached from a diesel engine is cleaned, oil stains and rust on the surface are removed, and meanwhile, compressed air is introduced into an oil passage hole 102 on the side surface of a cooling water jacket to remove impurities in the cooling water jacket.
2) And then cleaning the cooling water jacket oil passage hole 102, filling 0 # diesel oil into the cooling water jacket oil passage hole 102 for cleaning, after cleaning and filling 0 # diesel oil, sealing the hole opening of the oil passage hole 102 by using a plug 103, so that the 0 # diesel oil permeates and soaks and lubricates the combination surface of the cylinder sleeve 20 and the cooling water jacket 10 and the combination surface of the cylinder sleeve 20 and the flame ring 30. The soaking time of No. 0 diesel oil is 24 hours.
3) The combustion chamber part is arranged in a disassembling tool of a cooling water jacket of a diesel engine, the combustion chamber part is firstly hoisted to a chassis 1, so that the bottom of a cylinder sleeve 20 is supported on 4 copper plates 5 on the upper side of the chassis 1, and the bottom of the cylinder sleeve 20 is prevented from being damaged. Then the lower ends of the double-head screws 3 respectively penetrate through the upper through holes 101 of the two cooling water jackets on the diagonals of the cooling water jackets and are screwed into the threaded holes 11 of the chassis, and sleepers 21 are respectively placed on the tops of the support rods 2, so that the double-head screws play roles in buffering and protecting the cooling water jackets 10 when the cooling water jackets 10 fall off the sleepers 21 at the top ends of the support rods 2.
4) The bolt stretchers 4 are installed, the cooling water jacket 10 is detached using the bolt stretchers 4, and the bolt stretchers 4 are respectively screwed to the upper ends of the stud screws 3 so that the bottom surfaces of the bolt stretchers 4 are pressed against the top surface of the cooling water jacket 10.
4.1) starting a hydraulic oil pump to pressurize the bolt stretcher 4 to elastically stretch the double-headed screw 3, and stabilizing the oil pressure of the bolt stretcher 4 in a range of 14MPa to 15.5 MPa. And observing whether a gap is formed between the upper end surface of the cooling water jacket 10 and the top surface of the bolt stretcher 4, if so, re-screwing the hydraulic stretcher 4 and then releasing the pressure of the hydraulic oil pump, and pushing the cooling water jacket 10 to move downwards by the reset impact force generated instantly after the stretching elastic force of the double-headed screw 3 disappears.
4.2) if the cooling water jacket 10 moves downwards, repeating the step 4.1) for 3-4 times until the cooling water jacket 10 moves downwards and is completely separated from the flame ring 30 and the cylinder sleeve and falls on the sleepers 21 at the tops of the 4 support rods 2. And respectively hoisting and conveying the flame ring, the cylinder sleeve and the cooling water jacket 10 to finish the disassembly of the cooling water jacket.
4.3) if the cooling water jacket 10 is not moved down, it means that the cooling water jacket 10 has not yet separated from the cylinder liner 20. Uniformly knocking the ring surface at the top of the cooling water jacket 10 by using a copper bar, weakening the static friction force of the binding surface of each part through vibration, and then repeating the processes from 4.1) to 4.2) until the cooling water jacket 10 moves downwards and is completely separated from the flame ring 30 and the cylinder sleeve 20; and respectively hoisting and conveying the flame ring 30, the cylinder sleeve 20 and the cooling water jacket 10, and completing the disassembly of the cooling water jacket 10.
In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a frock is dismantled to diesel engine cooling water jacket which characterized in that: the device comprises a chassis, a plurality of support rods, 2 double-headed screws and 2 bolt stretchers, wherein the plurality of support rods are vertically and uniformly distributed on the chassis, sleepers are padded at the tops of the support rods, and the bottoms of the support rods are respectively and vertically and fixedly connected with the chassis; 2 diagonally arranged double-threaded screws are positioned between the support rods, and the lower ends of the double-threaded screws are respectively screwed into corresponding threaded holes of the chassis; the bottom of a cooling water jacket in a combustion chamber component consisting of the cooling water jacket, a cylinder sleeve and a flame ring to be disassembled is supported on a chassis through a plurality of soft plates; the through holes at the upper part of the cooling water jacket are respectively sleeved in the upper ends of the corresponding double-headed screws, the bolt stretchers are respectively screwed at the upper ends of the double-headed screws, and the end surfaces of the lower ends of the bolt stretchers respectively abut against the end surfaces of the upper ends of the cooling water jacket.
2. The cooling water jacket of the diesel engine of claim 1 dismantles the frock, characterized by: the diameter D of the central distribution circle of the 2 double-head screws is matched with the diameter D1 of the central distribution circle of the through hole at the upper part of the cooling water jacket.
3. The diesel engine cooling water jacket disassembly tool of claim 1, characterized in that: the soft plate is made of copper materials.
4. The diesel engine cooling water jacket disassembly tool of claim 1, characterized in that: the double-end screw is made of medium carbon steel, and the hardening and tempering hardness of the double-end screw is HB 250-290.
5. The diesel engine cooling water jacket disassembly tool of claim 1, characterized in that: the ratio of the distance H1 from the bottom surface of the cooling water jacket to the bottom surface of the cylinder sleeve to the distance H2 from the upper side surface of the sleeper at the top of the support rod to the bottom surface of the cylinder sleeve: H1/H2=1.21 ~ 1.23.
6. A method for disassembling a tool by using the diesel engine cooling water jacket according to claim 1, which is characterized in that: the method comprises the following steps:
1) firstly, cleaning the surface of a combustion chamber component detached from a diesel engine, removing oil stains and rust on the surface, and simultaneously introducing compressed air into an oil passage hole on the side surface of a cooling water jacket to remove impurities in the cooling water jacket;
2) cleaning an oil passage hole of the cooling water jacket, filling 0 # diesel oil into the oil passage hole of the cooling water jacket for cleaning, and plugging an orifice of the oil passage hole by using a plug after cleaning and filling 0 # diesel oil, so that the 0 # diesel oil permeates and soaks and lubricates a joint surface of the cylinder sleeve and the cooling water jacket and a joint surface of the cylinder sleeve and the flame ring;
3) the combustion chamber part is arranged on a disassembly tool of a cooling water jacket of a diesel engine, the combustion chamber part is firstly hoisted to a chassis, so that the bottom of a cylinder sleeve is supported on a plurality of soft plates on the upper side of the chassis, and the bottom of the cylinder sleeve is prevented from being damaged by the chassis; then the lower end of the double-head screw rod penetrates through the through holes at the upper parts of the two cooling water jackets on the diagonal line of the cooling water jackets and then is screwed into the threaded holes of the chassis, sleepers are respectively placed at the tops of the supporting rods, and the double-head screw rod plays a role in buffering and protecting the cooling water jackets when the cooling water jackets fall off the sleepers at the top ends of the supporting rods;
4) installing a bolt stretcher, using the bolt stretcher to disassemble the cooling water jacket, and respectively screwing the bolt stretcher to the upper ends of the double-headed screws so that the bottom surface of the bolt stretcher is pressed against the top surface of the cooling water jacket;
4.1) starting a hydraulic oil pump to pressurize the bolt stretcher so as to elastically stretch the double-headed screw, and stabilizing the oil pressure of the bolt stretcher within a range of 14 MPa-15.5 MPa; observing whether a gap is formed between the upper end surface of the cooling water jacket and the top surface of the bolt tensioner, if so, retightening the hydraulic tensioner and then releasing the pressure of the hydraulic oil pump, and pushing the cooling water jacket to move downwards by the reset impact force instantly generated after the stretching elastic force of the double-headed screw disappears;
4.2) if the cooling water jacket moves downwards, repeating the step 4.1) for 3-4 times until the cooling water jacket moves downwards and is completely separated from the flame ring and the cylinder sleeve and falls on sleepers at the tops of a plurality of support rods; respectively hoisting and conveying the flame ring, the cylinder sleeve and the cooling water jacket to finish the disassembly of the cooling water jacket;
4.3) if the cooling water jacket does not move downwards, the cooling water jacket is not separated from the cylinder sleeve; uniformly knocking the ring surface at the top of the cooling water jacket by using a copper bar, and weakening the static friction force of the binding surface of each part through vibration; then repeating the processes from 4.1) to 4.2) until the cooling water jacket moves downwards and is completely separated from the flame ring and the cylinder sleeve; and respectively hoisting and conveying the flame ring, the cylinder sleeve and the cooling water jacket to finish the disassembly of the cooling water jacket.
7. The method for disassembling the tool for the cooling water jacket of the diesel engine according to claim 6, wherein the soaking time of the No. 0 diesel oil in the step 2) is 24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111284213.8A CN113894741A (en) | 2021-11-01 | 2021-11-01 | Diesel engine cooling water jacket disassembling tool and disassembling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111284213.8A CN113894741A (en) | 2021-11-01 | 2021-11-01 | Diesel engine cooling water jacket disassembling tool and disassembling method |
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| Publication Number | Publication Date |
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| CN113894741A true CN113894741A (en) | 2022-01-07 |
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|---|---|---|---|
| CN202111284213.8A Pending CN113894741A (en) | 2021-11-01 | 2021-11-01 | Diesel engine cooling water jacket disassembling tool and disassembling method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1261177A (en) * | 1969-02-08 | 1972-01-26 | Maschf Augsburg Nuernberg Ag | Hydraulic device for lifting an element |
| US4084369A (en) * | 1977-05-02 | 1978-04-18 | Luebbers Herman E | Chain link assembly and disassembly tool |
| CN105751153A (en) * | 2016-04-22 | 2016-07-13 | 广州飞机维修工程有限公司 | Dismounting device for double shaft sleeves of civil aircraft oil combustion part |
| CN207757526U (en) * | 2017-12-22 | 2018-08-24 | 中船动力研究院有限公司 | A kind of marine diesel cylinder sleeve water jacket dismounting device |
| CN112605623A (en) * | 2020-11-30 | 2021-04-06 | 中船海洋动力技术服务有限公司 | Large marine diesel engine cylinder cooling water jacket dismantling assembly and dismantling method |
| CN216504818U (en) * | 2021-11-01 | 2022-05-13 | 中船动力镇江有限公司 | Diesel engine cooling water jacket dismantles frock |
-
2021
- 2021-11-01 CN CN202111284213.8A patent/CN113894741A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1261177A (en) * | 1969-02-08 | 1972-01-26 | Maschf Augsburg Nuernberg Ag | Hydraulic device for lifting an element |
| US4084369A (en) * | 1977-05-02 | 1978-04-18 | Luebbers Herman E | Chain link assembly and disassembly tool |
| CN105751153A (en) * | 2016-04-22 | 2016-07-13 | 广州飞机维修工程有限公司 | Dismounting device for double shaft sleeves of civil aircraft oil combustion part |
| CN207757526U (en) * | 2017-12-22 | 2018-08-24 | 中船动力研究院有限公司 | A kind of marine diesel cylinder sleeve water jacket dismounting device |
| CN112605623A (en) * | 2020-11-30 | 2021-04-06 | 中船海洋动力技术服务有限公司 | Large marine diesel engine cylinder cooling water jacket dismantling assembly and dismantling method |
| CN216504818U (en) * | 2021-11-01 | 2022-05-13 | 中船动力镇江有限公司 | Diesel engine cooling water jacket dismantles frock |
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