CN114889763A - Ship main engine gear box installation and adjustment method - Google Patents
Ship main engine gear box installation and adjustment method Download PDFInfo
- Publication number
- CN114889763A CN114889763A CN202210588555.7A CN202210588555A CN114889763A CN 114889763 A CN114889763 A CN 114889763A CN 202210588555 A CN202210588555 A CN 202210588555A CN 114889763 A CN114889763 A CN 114889763A
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- adjusting
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- plate
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- 238000009434 installation Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000005498 polishing Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims abstract description 4
- 241000692569 Stylephorus chordatus Species 0.000 claims description 6
- 210000003734 kidney Anatomy 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/49—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods by means of threaded members, e.g. screws, threaded bolts or nuts
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a method for installing and adjusting a gear box of a marine main engine, which comprises the following steps: step one, manufacturing an installation adjusting device; welding installation adjusting devices on a host machine base or a gear box base, wherein each host machine base or gear box base is provided with 8 installation adjusting devices; thirdly, adjusting the adjusting bolt according to the moving direction of the host or the gear box to move the host or the gear box to a specified position; and step four, cutting off the bottom plate welded on the base of the host machine or the base of the gear box after the host machine and the gear box are installed, polishing the welded position, and installing the adjusting device for repeated use. The invention has simple structure and convenient installation and use, meets the technical requirements of the installation of the host machine and the gear box by pushing the host machine or the gear box to generate micro displacement, greatly improves the installation efficiency of large-scale equipment such as the host machine gear box and the like, avoids potential safety hazards and shortens the construction period of ships.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a method for installing and adjusting a gear box of a ship main engine.
Background
The mass of large equipment such as a ship main engine, a gear box and the like is generally dozens of tons to more than one hundred tons, a gantry crane is adopted to be hoisted to a base of the main engine and the gear box, accurate positioning is carried out through bolt hole alignment or a limiting block, and the error range is controlled to be 1-2 millimeters. The main power equipment such as the main engine, the gear box and the like has higher installation technical requirements, and the installation precision is less than or equal to 0.01 mm. Therefore, a device which is convenient and easy to operate is needed to be selected and used for improving the installation operation efficiency of the main machine and the gear box.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for installing and adjusting a gear box of a marine main engine, which can greatly improve the operating efficiency of the main engine and the gear box, avoid potential safety hazards and reduce the installation cost of large-scale equipment.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a method for installing and adjusting a gear box of a marine main engine, which comprises the following steps:
step one, manufacturing an installation adjusting device; the mounting and adjusting device comprises a mounting bracket, an adjusting bolt and an adjusting nut, the mounting bracket comprises a side plate, a toggle plate and a seat plate, the side plate and the toggle plate are vertically mounted on the seat plate, the side plate is mounted on two sides of the toggle plate, the toggle plate is vertical to the side plate, a long waist hole is formed in the side plate along the height direction, and the adjusting bolt penetrates through the long waist hole and is fixed on the side plate through the adjusting nut;
welding installation adjusting devices on a host machine base or a gear box base, wherein each host machine base or gear box base is provided with 8 installation adjusting devices, and the front side, the rear side, the left side and the right side of each installation adjusting device are respectively provided with two installation adjusting devices;
thirdly, adjusting the adjusting bolt according to the moving direction of the host or the gear box to move the host or the gear box to a specified position;
and step four, after the host and the gear box are installed, cutting off the bottom plate welded on the host base or the gear box base, polishing the welded position, and installing the adjusting device for reuse.
In a preferred technical solution, in the first step, the side plates and the elbow plate have a thickness of 16 mm, and the bottom plate has a thickness of 20 mm; in the fourth step, when the mounting and adjusting device is used repeatedly, the thickness of the bottom plate is larger than that of the side plate and larger than that of the elbow plate.
As a preferred technical scheme, when the adjusting bolt is arranged at the center of the circular hole at the lower end of the long waist hole, the lowest position where the adjusting device is arranged is not lower than the bottom of the equipment rack; when the adjusting bolt is arranged at the center of the round hole at the upper end of the long waist hole, the highest position of the adjusting device does not exceed the top of the equipment rack.
Preferably, the hole diameter of the long waist hole is 2-3 mm larger than the external diameter of the thread of the adjusting bolt.
As a preferred technical solution, the toggle plate is a triangular structure, the height of the toggle plate is smaller than the height of the side plate, and the length of the toggle plate is smaller than the length of the side plate.
As a preferable technical scheme, the thread specification of the adjusting bolt is M36, the thread pitch is 2 mm, the performance grade is 8.8 grade, the specification of the adjusting nut is matched with the adjusting bolt, and the performance grade is 8 grade.
As a preferred technical scheme, the third step specifically comprises the following steps:
when the host or the gear box needs to be adjusted in the left-right direction, the adjusting bolts of the four mounting adjusting devices in the front-back direction are loosened, if the host or the gear box moves to the left side, the adjusting bolts of the two mounting adjusting devices on the left side are loosened, the adjusting bolts of the two mounting adjusting devices on the right side are simultaneously screwed, the threaded tail ends of the adjusting bolts are used for propping against the host or the gear box to move to the left, if the host or the gear box moves to the right side, the adjusting bolts of the two mounting adjusting devices on the right side are loosened, the adjusting bolts of the two mounting adjusting devices on the left side are simultaneously screwed, and the threaded tail ends of the adjusting bolts are used for propping against the host or the gear box to move to the right;
when the host or the gear box needs to be adjusted in the front-back direction, the adjusting bolts of the four mounting adjusting devices in the left-right direction are loosened, if the host or the gear box moves to the front side, the adjusting bolts of the two mounting adjusting devices in the front side are loosened, the adjusting bolts of the two mounting adjusting devices in the back side are simultaneously screwed, the thread tail ends of the adjusting bolts are used for propping against the host or the gear box to move forwards, if the host or the gear box moves to the back side, the adjusting bolts of the two mounting adjusting devices in the back side are loosened, the adjusting bolts of the two mounting adjusting devices in the front side are simultaneously screwed, and the thread tail ends of the adjusting bolts are used for propping against the host or the gear box to move backwards;
when the host or the gear box needs to be adjusted in the up-and-down direction, 8 adjusting bolts for installing the adjusting devices on the front side, the rear side, the left side and the right side are simultaneously loosened, and the up-and-down direction is adjusted by using adjusting screws of the host and the gear box.
Compared with the prior art, the invention has the following technical effects:
(1) the invention has simple structure and convenient installation and use, meets the technical requirements of the installation of the host machine and the gear box by pushing the host machine or the gear box to generate micro displacement, greatly improves the installation efficiency of large-scale equipment such as the host machine gear box and the like, avoids potential safety hazards and shortens the construction period of ships.
(2) The ship building block is made of common building materials in the field of ship building, is low in manufacturing cost, is suitable for various ship types, can be repeatedly used, and greatly reduces the production cost of enterprises.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the installation and adjustment device of the present invention.
Fig. 2 is a top view of the installation adjustment device of the present invention.
Fig. 3 is a front view of a mounting bracket of the installation and adjustment device of the present invention.
Fig. 4 is a left side view of the mounting bracket of the installation and adjustment device of the present invention.
Wherein the reference numerals are specified as follows: the device comprises a mounting bracket 1, an adjusting bolt 2, an adjusting nut 3, a side plate 4, a toggle plate 5 and a bottom plate 6.
Detailed Description
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1 to 4, the present embodiment provides a method for adjusting the installation of a gearbox of a marine main engine, including the following steps:
step one, manufacturing an installation adjusting device; installation adjusting device includes installing support 1, adjusting bolt 2 and adjusting nut 3, installing support 1 includes curb plate 4, bracket 5 and bedplate, curb plate 4 bracket 5 all install perpendicularly in on the bedplate, curb plate 4 install in bracket 5's both sides, bracket 5 with curb plate 4 is perpendicular, be provided with long waist hole on the curb plate 4 along the direction of height, adjusting bolt 2 passes long waist hole is fixed in on curb plate 4 through adjusting nut 3. The thickness of the side plates 4 and the toggle plates 5 is 16 mm, and the thickness of the bottom plate 6 is 20 mm; when the adjusting bolt 2 is arranged at the center of the circular hole at the lower end of the long waist hole, the lowest position where the adjusting device is arranged is not lower than the bottom of the equipment rack; when the adjusting bolt 2 is arranged at the center of the round hole at the upper end of the long waist hole, the highest position of the adjusting device does not exceed the top of the equipment rack. The hole diameter of the long waist hole is 2-3 mm larger than the external diameter of the thread of the adjusting bolt 2, so that the adjusting bolt 2 can conveniently penetrate through the long waist hole. The toggle plate 5 is in a triangular structure, the height of the toggle plate 5 is smaller than that of the side plate 4, and the length of the toggle plate 5 is smaller than that of the side plate 4. The thread specification of adjusting bolt 2 is M36, and the pitch is 2 millimeters, the specification of adjusting nut 3 with adjusting bolt 2 matches. In the standard of the fastener, the fine thread pitch of the M36 hexagon head bolt is 3mm, the installation accuracy of the host and the gear box is less than or equal to about 0.01mm, only thread-level fine adjustment is allowed up and down, front and back, left and right, and the fine thread with the thread pitch of 3mm cannot meet the installation accuracy of the host and the gear box. The fine-thread bolt has good self-locking performance and strong anti-vibration loosening capability, and is commonly used for precise adjustment. The thread specification of the adjusting bolt 2 is M36, the performance grade is 8.8 grade, the performance grade of the adjusting nut 3 is 8 grade, the high-strength fastener has higher hardness, the borne load is larger than that of a common bolt, the connecting rigidity is high, and the adjusting bolt can be repeatedly used.
And step two, welding the installation adjusting devices on the host machine base or the gear box base, wherein each host machine base or the gear box base is provided with 8 installation adjusting devices, and the front side, the rear side, the left side and the right side are respectively provided with two installation adjusting devices.
And step three, adjusting the adjusting bolts 2 according to the moving direction of the host or the gear box to move the host or the gear box to a specified position, when the host or the gear box needs to be adjusted in the left-right direction, loosening the adjusting bolts 2 of the four mounting adjusting devices in the front-back direction, loosening the adjusting bolts 2 of the two mounting adjusting devices in the left side if the host or the gear box needs to be adjusted in the left-right direction, simultaneously tightening the adjusting bolts 2 of the two mounting adjusting devices in the right side, using the thread tail ends of the adjusting bolts 2 to prop against the host or the gear box to move leftwards, loosening the adjusting bolts 2 of the two mounting adjusting devices in the right side if the host or the gear box needs to be moved rightwards, simultaneously tightening the adjusting bolts 2 of the two mounting adjusting devices in the left side, and propping against the host or the gear box to move rightwards by using the thread tail ends of the adjusting bolts 2. When the host or the gear box needs to be adjusted in the front-back direction, the adjusting bolts 2 of the four mounting adjusting devices in the left-right direction are loosened, if the host or the gear box needs to be adjusted in the front-back direction, the adjusting bolts 2 of the two mounting adjusting devices in the front side are loosened, the adjusting bolts 2 of the two mounting adjusting devices in the back side are simultaneously screwed, the threaded tail ends of the adjusting bolts 2 are used for propping against the host or the gear box to move forwards, if the host or the gear box needs to be moved backwards, the adjusting bolts 2 of the two mounting adjusting devices in the back side are loosened, the adjusting bolts 2 of the two mounting adjusting devices in the front side are simultaneously screwed, and the threaded tail ends of the adjusting bolts 2 are used for propping against the host or the gear box to move backwards. When the host or the gear box needs to be adjusted in the up-and-down direction, 8 adjusting bolts 2 for installing the adjusting devices on the front side, the rear side, the left side and the right side are simultaneously loosened, and the up-and-down direction is adjusted by using adjusting screws of the host and the gear box.
And step four, after the host and the gear box are installed, cutting off the bottom plate 6 welded on the host base or the gear box base, polishing the welded position, and repeatedly using the installation adjusting device, wherein the thickness of the bottom plate 6 is larger than that of the side plate 4 and larger than that of the toggle plate 5 when the installation adjusting device is repeatedly used.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (7)
1. A method for installing and adjusting a gearbox of a marine main engine is characterized by comprising the following steps:
step one, manufacturing an installation adjusting device; the mounting and adjusting device comprises a mounting bracket, an adjusting bolt and an adjusting nut, the mounting bracket comprises a side plate, a toggle plate and a seat plate, the side plate and the toggle plate are vertically mounted on the seat plate, the side plate is mounted on two sides of the toggle plate, the toggle plate is vertical to the side plate, a long waist hole is formed in the side plate along the height direction, and the adjusting bolt penetrates through the long waist hole and is fixed on the side plate through the adjusting nut;
welding installation adjusting devices on a host machine base or a gear box base, wherein each host machine base or gear box base is provided with 8 installation adjusting devices, and the front side, the rear side, the left side and the right side of each installation adjusting device are respectively provided with two installation adjusting devices;
thirdly, adjusting the adjusting bolt according to the moving direction of the host or the gear box to move the host or the gear box to a specified position;
and step four, cutting off the bottom plate welded on the base of the host machine or the base of the gear box after the host machine and the gear box are installed, polishing the welded position, and installing the adjusting device for repeated use.
2. The method for adjusting the installation of a gearbox of a marine main engine according to claim 1, wherein in the first step, the thicknesses of the side plates and the elbow plates are 16 mm, and the thickness of the bottom plate is 20 mm; in the fourth step, when the mounting and adjusting device is used repeatedly, the thickness of the bottom plate is larger than that of the side plate and larger than that of the elbow plate.
3. The method for installing and adjusting the gearbox of the marine main engine according to claim 1, wherein when the adjusting bolt is installed at the center of the circular hole at the lower end of the long kidney hole, the lowest position of the installation adjusting device is not lower than the bottom of the equipment rack; when the adjusting bolt is arranged at the center of the round hole at the upper end of the long waist hole, the highest position of the adjusting device does not exceed the top of the equipment rack.
4. The marine main engine gearbox installation adjustment method of claim 1, wherein the bore diameter of the long waist hole is 2-3 mm larger than the external diameter of the thread of the adjustment bolt.
5. The method of claim 1, wherein the toggle plate is of a triangular structure, the toggle plate has a height less than a height of the side plate, and the toggle plate has a length less than a length of the side plate.
6. The method for installing and adjusting the gearbox of the marine main engine according to claim 1, wherein the thread specification of the adjusting bolt is M36, the thread pitch is 2 mm, the performance grade is 8.8 grade, the specification of the adjusting nut is matched with the adjusting bolt, and the performance grade is 8 grade.
7. The method for adjusting the installation of the gearbox of the marine main engine according to claim 1, wherein in the third step, the method specifically comprises the following steps:
when the host or the gear box needs to be adjusted in the left-right direction, the adjusting bolts of the four mounting adjusting devices in the front-back direction are loosened, if the host or the gear box moves to the left side, the adjusting bolts of the two mounting adjusting devices on the left side are loosened, the adjusting bolts of the two mounting adjusting devices on the right side are simultaneously screwed, the threaded tail ends of the adjusting bolts are used for propping against the host or the gear box to move to the left, if the host or the gear box moves to the right side, the adjusting bolts of the two mounting adjusting devices on the right side are loosened, the adjusting bolts of the two mounting adjusting devices on the left side are simultaneously screwed, and the threaded tail ends of the adjusting bolts are used for propping against the host or the gear box to move to the right;
when the host or the gear box needs to be adjusted in the front-back direction, the adjusting bolts of the four mounting adjusting devices in the left-right direction are loosened, if the host or the gear box moves to the front side, the adjusting bolts of the two mounting adjusting devices in the front side are loosened, the adjusting bolts of the two mounting adjusting devices in the back side are simultaneously screwed, the thread tail ends of the adjusting bolts are used for propping against the host or the gear box to move forwards, if the host or the gear box moves to the back side, the adjusting bolts of the two mounting adjusting devices in the back side are loosened, the adjusting bolts of the two mounting adjusting devices in the front side are simultaneously screwed, and the thread tail ends of the adjusting bolts are used for propping against the host or the gear box to move backwards;
when the host or the gear box needs to be adjusted in the up-and-down direction, 8 adjusting bolts for installing the adjusting devices on the front side, the rear side, the left side and the right side are simultaneously loosened, and the up-and-down direction is adjusted by using adjusting screws of the host and the gear box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210588555.7A CN114889763A (en) | 2022-05-27 | 2022-05-27 | Ship main engine gear box installation and adjustment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210588555.7A CN114889763A (en) | 2022-05-27 | 2022-05-27 | Ship main engine gear box installation and adjustment method |
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| Publication Number | Publication Date |
|---|---|
| CN114889763A true CN114889763A (en) | 2022-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210588555.7A Pending CN114889763A (en) | 2022-05-27 | 2022-05-27 | Ship main engine gear box installation and adjustment method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201176259Y (en) * | 2008-04-11 | 2009-01-07 | 广西玉柴机器股份有限公司 | Installation and adjustment device for marine engine |
| WO2012066789A1 (en) * | 2010-11-18 | 2012-05-24 | 三菱重工業株式会社 | Ship for installing offshore wind turbines, and method for installing offshore wind turbines using same |
| KR20130006526U (en) * | 2012-05-03 | 2013-11-13 | 현대중공업 주식회사 | A surface plate leveling jig for block assembly of offshore structure |
| CN210882545U (en) * | 2019-11-08 | 2020-06-30 | 招商局金陵船舶(威海)有限公司 | Marine equipment adjusting, positioning and supporting device |
| CN114309710A (en) * | 2021-12-10 | 2022-04-12 | 沪东中华造船(集团)有限公司 | Drilling positioning method for welding gasket of ship gear box base |
-
2022
- 2022-05-27 CN CN202210588555.7A patent/CN114889763A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201176259Y (en) * | 2008-04-11 | 2009-01-07 | 广西玉柴机器股份有限公司 | Installation and adjustment device for marine engine |
| WO2012066789A1 (en) * | 2010-11-18 | 2012-05-24 | 三菱重工業株式会社 | Ship for installing offshore wind turbines, and method for installing offshore wind turbines using same |
| KR20130006526U (en) * | 2012-05-03 | 2013-11-13 | 현대중공업 주식회사 | A surface plate leveling jig for block assembly of offshore structure |
| CN210882545U (en) * | 2019-11-08 | 2020-06-30 | 招商局金陵船舶(威海)有限公司 | Marine equipment adjusting, positioning and supporting device |
| CN114309710A (en) * | 2021-12-10 | 2022-04-12 | 沪东中华造船(集团)有限公司 | Drilling positioning method for welding gasket of ship gear box base |
Non-Patent Citations (1)
| Title |
|---|
| 李斌主编: "现代大型低速柴油机", 哈尔滨工程大学出版社, pages: 157 - 158 * |
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Application publication date: 20220812 |