CN109606533B - Positioning method for bolt holes of foundation feet of marine main engine and gear box - Google Patents
Positioning method for bolt holes of foundation feet of marine main engine and gear box Download PDFInfo
- Publication number
- CN109606533B CN109606533B CN201811237499.2A CN201811237499A CN109606533B CN 109606533 B CN109606533 B CN 109606533B CN 201811237499 A CN201811237499 A CN 201811237499A CN 109606533 B CN109606533 B CN 109606533B
- Authority
- CN
- China
- Prior art keywords
- line
- gear box
- base
- bolt holes
- point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
Abstract
The invention discloses a positioning method for bolt holes of a base footing of a marine main engine and a gear box, which comprises the following steps: s1, calibrating a shafting center line, a first angle square line and a second angle square line on a gear box base panel and a host machine base panel, wherein a first positioning point is determined on the first angle square line; s2, calibrating the center line of the main machine on three angle steels of the inner gear of the main machine base and the panel of the gear box base according to the relative position relation between the center line of the main machine and the center line of the shafting; s3, calibrating the center line of the oil pan of the gear box according to the relative position relation with the first angle ruler line; s4, marking out the positions of foot bolt holes on the left side and the right side of the center line of the oil pan according to the relative position relation between the foot bolt holes of the gear box and the center line of the oil pan of the gear box; s5 marks the remaining foot bolt hole locations on the gearbox base according to the gearbox foot bolt hole layout. The invention is beneficial to cost reduction, quality improvement and efficiency improvement of shipyards, and can fundamentally improve the core competitiveness of shipyards.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a positioning method for bolt holes of a footing of a ship main engine and a gear box.
Background
The axial positioning deviation of the ship main engine and the gear box directly determines the installation precision of the Gauss-ringer coupler (the manufacturer requires that the allowable deviation range of the axial installation distance between the output end of the main engine and the input end of the gear box is +/-0.5 mm), and if the precision is out of control, the phenomenon that torsional vibration exceeds the standard in the shaft system running process in future is possibly caused. Therefore, the axial positioning deviation of the main machine and the gear box directly influences the use performance of the Gauss coupling. In addition, lateral positioning deviations of the main engine and the gearbox cause eccentric operation of the bearing, thereby affecting the service performance and service life of the bearing, and further affecting the propulsion efficiency and service life of the whole propulsion system. Therefore, precise positioning of the marine vessel's main engine and gearbox is required.
The positions of the marine main engine and the gearbox depend on the positions of the footing bolt holes of the base, and the positioning of the latter is realized by calibrating the central lines of the main engine and the gearbox footing bolt holes on the main engine and the gearbox base panel by using a scriber and a sample punch according to the actual central line of a shaft system determined when the shaft-rudder system is centered. Although the number of the footing bolt holes of the main machine and the gear box is large, the footing bolt holes of the main machine and the gear box are located on the plane of the respective bases, and the relative positions are described on the drawing, so long as one of the reference holes is fixed, the positions of the rest footing bolt holes can be determined, therefore, the key point of scribing the footing bolt holes of the main machine and the gear box bases is to 'find' the positions of the reference holes, and meanwhile, the relative position relation among the bolt holes needs to be ensured.
Usually, a dedicated accommodating space is designed for an oil pan of the gearbox during the design of the hull structure, so that the axial position of the gearbox is determined by the position of the hull structure where the gearbox is located, and as long as the axial dimension of the whole shafting meets the design requirement (generally speaking, the axial dimension of the shafting adopting a coupling connection mode has an adjustment amount of +/-50 mm), the position of the gearbox is relatively fixed. Because the relative position of the main machine and the gear box is determined by the Gaussingg coupling connecting the main machine and the gear box, the position of the main machine is determined as long as the position of the gear box is determined.
The problem lies in that host computer base panel and gear box base panel do not have the difference in height on one face, and this has just increased its footing bolt hole's the degree of difficulty of ruling. Therefore, a reference object is needed, the axial relative size of the gear box and the main machine is led to the main machine base panel through the reference object, a steel tape is pulled to the gear box base along a central connecting line of a footing bolt hole on the main machine base panel, a steel ruler is erected on the gear box base panel along the steel tape, and the position of the footing bolt hole of the main machine is measured and calculated by reading position scales of the steel ruler, but certain uncertainties exist in the perpendicularity of the steel ruler and the gear box base panel, the perpendicularity of the steel tape and the steel ruler, and the straightness of the steel ruler, so that the accumulated error of the measured size is easily large, and sometimes the deviation can reach about 5 mm. The key point of the problem is that the deviation is not easy to find, the deviation can be found only when the main machine and the gear box are centered before the Gauss ringer coupler is installed after the main machine and the gear box are hoisted in place, but the fact that the deviation is late, how to eliminate the deviation in the 'sprouting' stage is very important.
Therefore, there is a need for an accurate method for scribing the bolt holes in the footing of the main frame and the gearbox base. In addition, the number of the host machine and the gearbox footing bolt holes is large (the number of the host machine and the gearbox footing bolt holes adopting the double-shaft system double-machine parallel-driving propulsion system is as large as about 200), so the scribing method of the footing bolt holes is directly related to the scribing efficiency. In the prior art, when the relative position of each footing bolt hole is calibrated, the parallel and vertical relation between the central connecting line of the footing bolt holes and the central line of a shafting and the central line of a main machine is ensured by utilizing the characteristic of equal rectangular diagonal lines through a method of multiple times of trials, the method has low efficiency and is difficult to ensure the precision, so the method has half the effort for comparison.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a positioning method for a bolt hole of a base bottom foot of a marine main engine and a gear box. This patent is to host computer, gear box base footing bolt hole marking off operation during the shipbuilding dock, has designed a method that is used for improving certain type ship host computer, gear box base footing bolt hole marking off efficiency and precision for avoid influencing whole main propulsion system's performance, especially the damping effect of gais ringer's coupling because of host computer and gear box positioning deviation. Meanwhile, the method is simple and easy to operate, high in operation efficiency, very little in initial investment and free of extra use and maintenance cost in the later period. In addition, the method is suitable for the same ship type, has strong universality and is easy to popularize and apply. Therefore, the method is beneficial to cost reduction, quality improvement and efficiency improvement of the shipyard, embodies the soft strength of the shipyard and can fundamentally improve the core competitiveness of the shipyard.
In order to achieve the purpose, the invention adopts the following technical scheme:
a positioning method for bolt holes of foundation feet of a marine main engine and a gear box comprises the following steps:
s1, calibrating a shafting center line, a first angle square line and a second angle square line on a gear box base panel and a host machine base panel, wherein a first positioning point is determined on the first angle square line;
s2, calibrating the center line of the main machine on three angle steels of the inner gear of the main machine base and the panel of the gear box base according to the relative position relation between the center line of the main machine and the center line of the shafting;
s3, calibrating the center line of the oil pan of the gear box according to the relative position relation with the first angle ruler line;
s4, marking out the positions of foot bolt holes on the left side and the right side of the center line of the oil pan according to the relative position relation between the foot bolt holes of the gear box and the center line of the oil pan of the gear box;
s5 marking the positions of the rest foot bolt holes on the gear box base according to the gear box foot bolt hole layout;
s6, respectively drawing 3 arcs on two sides of a panel of the host machine base by using a drawing gauge with a host machine central line sample punching point calibrated on three angle steels of an inner gear of the host machine base as a circle center and a half of the width between hole centers of foot bolt holes of the host machine as a radius, and drawing a central connecting line of the foot bolt holes on the same side of the host machine tangent to the 3 arcs along the front and back directions of the host machine base;
s7, marking the projection line of the central connecting line of the bottom foot bolt hole of the main machine on the panel of the base of the gear box;
s8, marking the intersection point of the oil pan central line and the projection line, and determining the position of the bottom foot bolt hole at the stern end of the main engine on the main engine base panel according to the relative position relation with the intersection point;
s9, determining the positions of the bolt holes of the rest main engine feet according to the layout of the bolt holes of the main engine feet.
S7 includes determining a first intersection point between the host machine central line and the first angle square line, determining a second intersection point between the host machine central line and the second angle square line, determining a first point on the first angle square line, determining a second point on the second angle square line, wherein the first point and the second point are both arranged outside the host machine central line, the distance between the first point and the first intersection point, and the distance between the second point and the second intersection point are equal to the width between the hole centers of the host machine footing bolt holes, and determining a projection line according to the first point and the second point.
S8 includes that through the special auxiliary measuring tool for the L-shaped, the edge line of the measuring tool passes through the intersection point of the central line of the oil pan and the projection line, the edge line is perpendicular to the base panel of the gear box, and the circle center position of the foot bolt hole at the stern end of the main engine is determined on the central connecting line of the foot bolt hole of the main engine.
And determining a third point on the edge line, wherein the distance between the intersection point of the central line of the oil pan and the projection line and the third point is equal to the height difference between the gear box base panel and the main machine base panel, and determining the circle center position of the main machine stern end footing bolt hole according to the designed distance relation between the third point and the circle center of the main machine stern end footing bolt hole.
The positioning method comprises the following steps:
s10 mounting base weld pads at the locations of the host and gearbox base foot bolt holes.
The positioning method comprises the following steps:
s11 stamping a sample punching mark on the welding pad.
The positioning method comprises the following steps:
s12 the bolt hole is drilled on the welding gasket of the main machine and the gear box base by using a magnet drill and using the sample punch mark as the center of a circle.
The positioning method comprises the following steps:
s13, grinding and painting the main machine and the gear box base.
Compared with the prior art, the invention has the beneficial effects that:
1. the mounting size precision and the service performance of the whole main propulsion system are ensured through the accurate positioning of the main engine and the gear box, the hidden troubles that the torsional vibration of a shaft system exceeds the standard and a bearing is excessively worn are avoided, and the construction quality of a ship product is ensured by the method;
2. the hoisting nodes of the main engine and the gear box are ensured through the efficient positioning of the main engine and the gear box, so that the installation and debugging period of the whole main propulsion system is ensured, and conditions are created for the scheduled delivery of the whole ship;
3. the method has very little initial investment and does not generate extra cost when in use, thereby playing a remarkable cost reduction and gain effect and being convenient to manage;
4. the method is practical, relatively simple, suitable for similar ship types, strong in universality and easy to popularize and apply.
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 view of the center line of the shaft system and the calibration of the first and second angle square lines.
FIG. 2 is a schematic diagram of host centerline calibration.
FIG. 3 is a schematic diagram of the position calibration of the center line of the oil pan of the gear box and the positions of the foot bolt holes on the left side and the right side of the oil pan of the gear box.
FIG. 4 is a gear box base footing bolt hole arrangement.
FIG. 5 is a schematic drawing of a center line of a bolt hole of a base of a main engine.
FIG. 6 is a three-dimensional view of an L-shaped special auxiliary measuring tool.
FIG. 7 is a schematic diagram of the calibration of the circle center position of a bolt hole of a foot at the stern end of a main engine.
FIG. 8 is a host base footing bolt hole layout.
FIG. 9 is a schematic illustration of a pattern punch mark on a bond pad.
Fig. 10 is a schematic side view of a vessel.
Fig. 11 is a side schematic view of fig. 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
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 11, the present embodiment provides a method for positioning a bolt hole of a pedestal of a marine main engine and a gearbox, the method comprising:
s1, calibrating a shafting center line 1, a first angle square line 2 and a second angle square line 3 on a gear box base panel and a host machine base panel, and determining a first positioning point 4 on the first angle square line 2;
s2, calibrating a central line 5 of the main machine on three angle steels of an inner gear of the main machine base and a panel of the gear box base according to the relative position relation between the central line 5 of the main machine and the central line 1 of the shafting;
s3, calibrating the central line 6 of the oil pan of the gear box according to the relative position relation with the first angle ruler line 2;
s4, marking out the positions of foot bolt holes (a left bottom angle bolt hole 61 and a right bottom angle bolt hole 62) on the left side and the right side of the oil pan central line 6 according to the relative position relation between the gear box foot bolt holes and the oil pan central line 6 of the gear box;
s5 marking the positions of the rest foot bolt holes on the gear box base according to the gear box foot bolt hole layout;
s6, respectively drawing 3 circular arcs 72 on both sides of a panel of the host machine base by using a drawing gauge with a host machine central line 5-like punching point 7 calibrated on three angle steels at the inner gear of the host machine base as the center of a circle and with a half of width 71 between hole centers of foot bolt holes of the host machine as a radius, and drawing a host machine same-side foot bolt hole central connecting line 8 tangent with the 3 circular arcs along the front-back direction of the host machine base;
s7 shows the projection line 9 of the central connecting line 8 of the bottom foot bolt hole of the main machine on the panel of the gear box base;
s8, marking the intersection point of the oil pan central line 6 and the projection line 9, and determining the position of the bottom foot bolt hole at the stern end of the main engine on the main engine base panel according to the relative position relation with the intersection point;
s9, determining the positions of the bolt holes of the rest main engine feet according to the layout of the bolt holes of the main engine feet.
S7 includes determining a first intersection point between the host central line 5 and the first square line 2, determining a second intersection point between the host central line 5 and the second square line 3, determining a first point on the first square line 2, determining a second point on the second square line 3, the first point and the second point being both disposed outside the host central line 5, the distance between the first point and the first intersection point, and the distance between the second point and the second intersection point being equal to the width between the hole centers of the host foot bolt holes, and determining the projection line 9 according to the first point and the second point.
Preferably, the present embodiment S8 includes that, through the L-shaped special auxiliary measuring tool, the edge line of the measuring tool passes through the intersection point of the oil pan center line 6 and the projection line 9, and the edge line is perpendicular to the base panel of the gear box, and the position of the center of the host stern end foot bolt hole is determined on the host footing bolt hole center line 8.
Preferably, a third point is determined on the edge line of the embodiment, the distance between the intersection point of the oil pan central line 6 and the projection line 9 and the third point is equal to the height difference between the gear box base panel and the main engine base panel, and the position 110 of the center of the main engine stern end foot bolt hole is determined according to the designed distance relationship between the third point and the center of the main engine stern end foot bolt hole.
Preferably, the positioning method of the present embodiment includes:
s10 mounting base weld pads at the locations of the host and gearbox base foot bolt holes.
Preferably, the positioning method of the present embodiment includes:
s11 punch marks 140 are punched flat on the solder pads.
Preferably, the positioning method of the present embodiment includes:
s12 the bolt hole is drilled on the welding gasket of the main machine and the gear box base by using a magnet drill and using the sample punch mark as the center of a circle.
Preferably, the positioning method of the present embodiment includes:
s13, grinding and painting the main machine and the gear box base.
The practical application of the method of the present invention will be described in detail below in the context of the host and gearbox base stud hole scoring steps for a given type of vessel.
In this embodiment, a four-engine double-propeller diesel engine propulsion system is adopted for a certain type of ship, and the ship is provided with a front cabin and a rear cabin, wherein each cabin is provided with two diesel engines, power is input into a parallel operation reduction gear box through a Gauss ringer coupler, and the power is transmitted to a transmission shaft system and a propeller through reduction. Wherein, the host computer overall dimension is 8713mmX3360mmX4490mm (length x width x height), and positioning accuracy: the axial direction is +/-1 mm, and the transverse direction is +/-1 mm; the outline dimension of the gear box is 3180mmX5600mmX4300mm, and the positioning precision is as follows: the axial direction is +/-1 mm, and the transverse direction is +/-1 mm. The axial distance between the output end of the main engine and the input end of the gear box is 960 +/-0.5 mm.
Note: the unit of the dimension in the following steps is mm by default unless otherwise specified.
In this embodiment, the host and gearbox base foot bolt hole scribing steps are as follows:
the first step is as follows: and (3) adopting a sighting collimator to perform sighting, centering and acceptance inspection of the shaft-rudder system by taking a stern target and a bow target calibrated by a hull structure as reference targets, marking the position of a shaft system central line on a middle target close to a rear bulkhead after acceptance inspection is qualified, and taking the position as the reference target for scribing a bolt hole of a footing of a main machine and a gear box base (see figure 1).
The second step is that: the theodolite is adopted to calibrate the central line of a shaft system and the angle square line thereof on the gear box base and the panel of the main machine base by taking a fore target and a middle target close to a rear bulkhead as references (see figure 1).
The third step: according to the relative position relationship between the central line of the main machine and the central line of the shafting in the main machine gear box installation drawing, the central line of the shafting is translated to the channel steel target at the front end and the rear end of the main machine base by using a gradienter and a theodolite with a bow target and a middle target near a rear bulkhead as references, and a paper target with a cross line is pasted as a reference target for main machine scribing (see figure 2).
The fourth step: according to the reference targets on the channel steel surfaces at the front end and the rear end of the host base, the theodolite is used for calibrating the central line of the host on three angle steels of the inner gear of the host base and the panel of the gear box base (see figure 2).
The fifth step: and marking out the positions of foot bolt holes on the left side and the right side of the gear box base on the panel of the gear box base by utilizing the shafting central line, the main engine central line, the angle square line and the relative position relationship between the foot bolt holes of the gear box and the central line of the oil pan of the gear box (see figure 3).
And a sixth step: the remaining foot bolt hole locations are scribed out on the gearbox base according to the gearbox foot bolt hole layout (see FIG. 4).
The seventh step: a marking gauge is used for respectively marking 3 circular arcs on two sides of a panel of the base by taking a host central line sample punching point marked on three steel angles of an inner gear of the host base as a circle center, the half width of a host footing bolt hole is a radius, and then a root powder line is bounced along the front and back directions of the base and is circumscribed with the 3 circular arcs, and the line is a central connecting line of the host footing bolt hole on the same side (see figure 5).
Eighth step: on the gear box base panel, respectively from the intersection point of the central line of the main machine and two angle square lines, measuring equal length distance (half width of the main machine foot bolt hole) to two sides of the base along the angle square line, marking, then bouncing two powder lines on two sides of the base along the marking point, wherein the two powder lines are the extension lines of the central connecting line of the main machine foot bolt hole on the gear box base panel (see fig. 5).
The ninth step: the position of the main engine stern end base bolt hole is measured by a tape 120 towards the main engine base panel along the direction of the central connecting line of the main engine footing bolt hole at the intersection of the central line of the gear box oil pan on the two sides of the gear box base and the central connecting line of the main engine footing bolt hole by using an L-shaped special auxiliary measuring tool 100 (see fig. 6), and the position is the marking reference of the rest base footing bolt holes of the base (see fig. 7).
The tenth step: and marking out the positions of the rest foot bolt holes one by one from back to front along the central connecting line of the foot bolt holes on the two sides of the panel of the host base according to the layout of the foot bolt holes of the host (see figure 8).
The eleventh step: and installing base welding gaskets according to the marked positions of the host machine and the foot bolt holes of the gear box base (see figures 4 and 8).
The twelfth step: using an L-shaped special auxiliary measuring tool, the cross line of the scribed footing bolt holes on the base panel of the main machine and the gearbox is shot on the upper plane of the welding pad 130 by a chalk line and a sample punch mark is knocked at the intersection of the cross lines (see fig. 9).
The thirteenth step: and (4) drilling holes in bolt holes in the bottom of the base by using a magnet drill on the welding gaskets of the main machine and the gear box base and using the sample punch mark as the circle center.
The fourteenth step is that: and (4) polishing and painting the main machine and the gear box base.
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 (8)
1. A positioning method for bolt holes of base feet of a marine main engine and a gear box is characterized by comprising the following steps:
s1, calibrating a shafting center line (1), a first angle square line (2) and a second angle square line (3) on a gear box base panel and a host machine base panel, and determining a first positioning point (4) on the first angle square line (2);
s2, calibrating the center line (5) of the main machine on three angle steels of the inner gear of the main machine base and the panel of the gear box base according to the relative position relation between the center line (5) of the main machine and the center line (1) of the shafting;
s3, calibrating the central line (6) of the oil pan of the gear box according to the relative position relation with the first angle ruler line (2);
s4, marking out the positions of foot bolt holes on the left side and the right side of the oil pan central line (6) according to the relative position relation between the foot bolt holes of the gear box and the central line (6) of the oil pan of the gear box;
s5 marking the positions of the rest foot bolt holes on the gear box base according to the gear box foot bolt hole layout;
s6, respectively drawing 3 circular arcs on two sides of a panel of the host machine base by using a drawing gauge and taking a host machine central line (5) sample punching point (7) calibrated on three angle steels at the inner gear of the host machine base as a circle center and taking a half of the width between hole centers of foot bolt holes of the host machine as a radius, and drawing a host machine same-side foot bolt hole central connecting line (8) tangent to the 3 circular arcs along the front and back directions of the host machine base;
s7, marking a projection line (9) of a central connecting line (8) of a bottom foot bolt hole of the main machine on a panel of a base of the gear box;
s8, marking the intersection point of the oil pan central line (6) and the projection line (9), and determining the position of the bottom foot bolt hole at the stern end of the main engine on the main engine base panel according to the relative position relation with the intersection point;
s9, determining the positions of the bolt holes of the rest main engine feet according to the layout of the bolt holes of the main engine feet.
2. The method of claim 1, wherein the step S7 comprises determining a first intersection point between the host centerline (5) and the first square line (2), determining a second intersection point between the host centerline (5) and the second square line (3), determining a first point on the first square line (2), determining a second point on the second square line (3), the first point and the second point being disposed outside the host centerline (5), the first point and the first intersection point, the second point and the second intersection point being equal to half of the width between the hole centers of the host footing bolt holes, and determining the projection line (9) according to the first point and the second point.
3. The method for positioning the footing bolt holes of the marine main engine and the gearbox according to claim 1, wherein S8 comprises determining the center position of the footing bolt holes at the stern end of the main engine on the center connecting line (8) of the footing bolt holes of the main engine by an L-shaped special auxiliary measuring tool, wherein the edge line of the measuring tool passes through the intersection point of the center line (6) of the oil pan and the projection line (9), is perpendicular to the base panel of the gearbox, and is used for measuring the center position of the footing bolt holes at the stern end of the main engine.
4. The method for positioning the footing bolt hole of marine main engine and gear box according to claim 3, wherein a third point is determined on the edge line, the distance between the intersection of the oil pan center line (6) and the projection line (9) and the third point is equal to the height difference between the gear box base panel and the main engine base panel, and the position of the center of the footing bolt hole at the stern end of the main engine is determined according to the designed distance relationship between the third point and the center of the footing bolt hole at the stern end of the main engine.
5. The method of claim 1, comprising:
s10 mounting base weld pads at the locations of the host and gearbox base foot bolt holes.
6. The method of claim 5, comprising:
s11 stamping a sample punching mark on the welding pad.
7. The method of claim 6, comprising:
s12 the bolt hole is drilled on the welding gasket of the main machine and the gear box base by using a magnet drill and using the sample punch mark as the center of a circle.
8. The method of claim 7, comprising:
s13, grinding and painting the main machine and the gear box base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811237499.2A CN109606533B (en) | 2018-10-23 | 2018-10-23 | Positioning method for bolt holes of foundation feet of marine main engine and gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811237499.2A CN109606533B (en) | 2018-10-23 | 2018-10-23 | Positioning method for bolt holes of foundation feet of marine main engine and gear box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109606533A CN109606533A (en) | 2019-04-12 |
| CN109606533B true CN109606533B (en) | 2020-10-30 |
Family
ID=66002642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811237499.2A Active CN109606533B (en) | 2018-10-23 | 2018-10-23 | Positioning method for bolt holes of foundation feet of marine main engine and gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109606533B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110053707B (en) * | 2019-04-29 | 2020-12-15 | 广船国际有限公司 | Ship foundation bolt installation and marking method |
| CN110102795A (en) * | 2019-05-28 | 2019-08-09 | 沪东中华造船(集团)有限公司 | A kind of steering engine drilling connecting screw hole method on ship in small space steering gear flat |
| CN110877701B (en) * | 2019-10-22 | 2021-08-13 | 沪东中华造船(集团)有限公司 | Ship main engine bolt hole positioning method |
| CN111591409B (en) * | 2020-05-19 | 2021-11-19 | 江苏新扬子造船有限公司 | Process method for improving forward reverse propelling precision of construction process |
| CN113859473A (en) * | 2021-10-27 | 2021-12-31 | 中船黄埔文冲船舶有限公司 | Boats and ships base installation tool and boats and ships |
| CN113911282A (en) * | 2021-11-08 | 2022-01-11 | 沪东中华造船(集团)有限公司 | Method for positioning large split type base of ship |
| CN114394209A (en) * | 2021-11-22 | 2022-04-26 | 沪东中华造船(集团)有限公司 | Control method for hoisting precision of deck cabin of duplex stainless steel chemical ship |
| CN115009463B (en) * | 2022-04-27 | 2024-01-02 | 广州文冲船舶修造有限公司 | Marine host base replacement positioning process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058335A (en) * | 2007-05-23 | 2007-10-24 | 沪东中华造船(集团)有限公司 | Method of positioning and mounting mainframe base and gearbox base in ship complete cross section manufacture |
| KR100814038B1 (en) * | 2007-03-09 | 2008-03-18 | 대우조선해양 주식회사 | Three-dimensional tranfer device for installing an engine and gas turbine |
| CN101168380A (en) * | 2007-07-18 | 2008-04-30 | 中国葛洲坝集团机械船舶有限公司 | Method for mounting ship three-main-engine three-airscrew main frame shafting |
| CN101234659A (en) * | 2008-02-20 | 2008-08-06 | 沪东中华造船(集团)有限公司 | Locating mounting method for rudder carrier base on ship |
| CN104527922A (en) * | 2014-11-27 | 2015-04-22 | 沪东中华造船(集团)有限公司 | Accurate positioning method of anchor bolt hole of marine main engine |
| CN106853861A (en) * | 2016-12-08 | 2017-06-16 | 沪东中华造船(集团)有限公司 | The localization method in marine main engine foundation bolt hole |
-
2018
- 2018-10-23 CN CN201811237499.2A patent/CN109606533B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100814038B1 (en) * | 2007-03-09 | 2008-03-18 | 대우조선해양 주식회사 | Three-dimensional tranfer device for installing an engine and gas turbine |
| CN101058335A (en) * | 2007-05-23 | 2007-10-24 | 沪东中华造船(集团)有限公司 | Method of positioning and mounting mainframe base and gearbox base in ship complete cross section manufacture |
| CN101168380A (en) * | 2007-07-18 | 2008-04-30 | 中国葛洲坝集团机械船舶有限公司 | Method for mounting ship three-main-engine three-airscrew main frame shafting |
| CN101234659A (en) * | 2008-02-20 | 2008-08-06 | 沪东中华造船(集团)有限公司 | Locating mounting method for rudder carrier base on ship |
| CN104527922A (en) * | 2014-11-27 | 2015-04-22 | 沪东中华造船(集团)有限公司 | Accurate positioning method of anchor bolt hole of marine main engine |
| CN106853861A (en) * | 2016-12-08 | 2017-06-16 | 沪东中华造船(集团)有限公司 | The localization method in marine main engine foundation bolt hole |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109606533A (en) | 2019-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109606533B (en) | Positioning method for bolt holes of foundation feet of marine main engine and gear box | |
| CN101723057B (en) | Installation method of ship single shafting without setting front bearing of stern shaft tube | |
| CN110525576B (en) | Ship deck base structure and ship deck base structure installation method | |
| CN201102619Y (en) | Fixture equipment for base installation | |
| CN104527922B (en) | Accurate positioning method of anchor bolt hole of marine main engine | |
| CN110696993B (en) | Ship section outer plate and aggregate positioning method | |
| CN106853861A (en) | The localization method in marine main engine foundation bolt hole | |
| CN108163143B (en) | Arc saddle web amendment technique in liquefied gas carrier with c-type flow container | |
| CN108189964B (en) | Method for determining ship stern baseline during shafting centering in ship construction | |
| CN101793497A (en) | Method for measuring boring bar cantilever value by laser calibration apparatus | |
| CN103010405B (en) | Method for controlling section cutting precision of transverse bulkhead | |
| CN110789684A (en) | Method for assembling large deck machinery body base | |
| CN202149733U (en) | Reciprocating type helm steering mechanism positioning measuring device | |
| CN114084311A (en) | High-precision installation method for full-slewing device | |
| CN109823469B (en) | Ship main engine positioning method | |
| CN113148058A (en) | Process for installing and positioning double-rudder sleeve and tail casting in segmented construction stage | |
| CN111942544B (en) | Quick positioning method for crane cylinder | |
| CN112519981A (en) | Method for mounting laser inertia platform | |
| CN111746745B (en) | Anchor chain cylinder mounting method | |
| CN110480277B (en) | Machining process of nacelle rudder-steering mounting flange | |
| CN114152172A (en) | Adjustable jointed board inspection device and inspection method for ship construction stage | |
| CN102853729A (en) | Positioning and measuring device for reciprocating helm shifting mechanisms | |
| CN115009463A (en) | Renewing and positioning process for marine main engine base | |
| CN114275115A (en) | Installation method and installation precision control system of vibration-resistant square steel of ship equipment base | |
| CN111645827A (en) | Rapid positioning method for hull component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |