CN114352706A - Installation method of ocean platform gear box - Google Patents
Installation method of ocean platform gear box Download PDFInfo
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- CN114352706A CN114352706A CN202111421829.5A CN202111421829A CN114352706A CN 114352706 A CN114352706 A CN 114352706A CN 202111421829 A CN202111421829 A CN 202111421829A CN 114352706 A CN114352706 A CN 114352706A
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- chain block
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- 238000009434 installation Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000005484 gravity Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000004323 axial length Effects 0.000 claims description 4
- 238000003754 machining Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
- E02B17/0818—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with racks actuated by pinions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/025—Support of gearboxes, e.g. torque arms, or attachment to other devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H2057/0056—Mounting parts arranged in special position or by special sequence, e.g. for keeping particular parts in his position during assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02069—Gearboxes for particular applications for industrial applications
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses an installation method of an ocean platform gear box, and belongs to the technical field of ocean platform machining. The array of mounting holes on the mounting frame and the torsion baffle provide mounting space. And the two ends of each chain block are respectively connected to the mounting frame and one gear box, and the minimum height of each chain block is greater than the maximum height of the mounting hole corresponding to the same chain block. When the gear box is installed in the installation hole, the gear box is positioned to a certain extent, the chain block adjusts the position of the gear box in each installation hole, and the axis of the gear box is adjusted to coincide with the axis of the installation hole. The position adjustment targets in place, the position between the adjacent gear boxes is also accurate, the position of the torsion stop block arranged between each gear box and the mounting frame is ensured, and the connection quality and the stress condition of the plurality of gear boxes and the mounting frame are improved so as to prolong the service life of the gear boxes.
Description
Technical Field
The disclosure relates to the technical field of ocean platform processing, in particular to an ocean platform gear box installation method.
Background
The ocean platform is a common offshore working device and generally comprises at least a platform and a plurality of pile legs which are inserted in the platform in parallel, wherein mounting frames and gear rack lifting components are connected between the pile legs and the platform, the mounting frames provide mounting spaces for the pile legs, a plurality of gear boxes in the gear rack lifting components are mounted on the mounting frames, racks are mounted on the pile legs, gears in the gear boxes are meshed with the racks, and gears in the gear boxes drive movable racks to move.
When a gear box in the gear rack lifting component is installed on the installation frame, a plurality of installation holes which are arranged in an array mode and correspond to the gear box are formed in the installation frame, torsion baffles for force transmission are arranged at four corners of each installation hole, and in each row of gear boxes, two adjacent gear boxes share two torsion baffles. Torsion stoppers for transmitting acting force are required to be added between the four corners of the gear box corresponding to the mounting holes and the corresponding torsion baffles. The torsion stop block is matched with the torsion baffle plate in an abutting mode so as to ensure stable use and stress between the gear box and the mounting frame and between adjacent gear boxes.
At the in-process of actually installing the gear box to the mounting bracket, because there is certain distance between a plurality of gear boxes all and the ground, a plurality of gear boxes can receive certain action of gravity in the installation and lead to the distance between the gear box of difference to be difficult to confirm, the torsion dog that is difficult to guarantee every gear box all can with the mounting panel on realize good cooperation between the torsion baffle, appear the unstable and bad problem of atress of being connected of a plurality of gear boxes and mounting bracket easily, influence the life of gear box.
Disclosure of Invention
The embodiment of the disclosure provides an installation method of a gearbox of an ocean platform, which can improve the connection quality and stress condition of a plurality of gearboxes and an installation frame so as to prolong the service life of the gearboxes. The technical scheme is as follows:
the embodiment of the disclosure provides an installation method of an ocean platform gear box, which comprises the following steps:
providing a mounting frame, a plurality of gear boxes, chain blocks in one-to-one correspondence with the gear boxes and four torsion stop blocks corresponding to each gear box, wherein the mounting frame is provided with a plurality of mounting holes in one-to-one correspondence with the gear boxes, the mounting holes are distributed in an array manner, and four corners of each mounting hole are provided with a torsion baffle;
connecting two ends of each chain block with the mounting frame and the corresponding gear box respectively, wherein the minimum height of each chain block is greater than the maximum height of the mounting hole corresponding to the same chain block;
placing each gear box into the corresponding mounting hole, and adjusting the chain blocks until the axis of the gear box corresponding to each chain block is superposed with the axis of the mounting hole;
and four torsion stoppers are arranged between each gear box and the mounting frame, and each torsion stopper is distributed at the four corners of each gear box and abuts against one torsion baffle.
Optionally, the two ends of each chain block are respectively connected to the mounting frame and the corresponding gear box, and the method includes:
a support frame is arranged at one end with a larger height of the mounting frame, the support frame extends out of one end of the mounting frame, and the length of the support frame extending out of the mounting frame in the axial direction of the mounting hole is greater than or equal to half of the axial length of the gear box;
and connecting two ends of the chain block with the support frame and the corresponding gear box respectively.
Optionally, the support frame includes a support beam corresponding to at least two rows of the mounting holes, and all the gear boxes in each row of the mounting holes are connected to the corresponding support beam through the chain block.
Optionally, the two ends of each chain block are respectively connected to the mounting frame and the corresponding gear box, and the chain block further comprises:
an auxiliary lug plate is arranged on the peripheral wall of each gear box;
and connecting the auxiliary lug plate with the chain block by using a first connecting rope.
Optionally, a load cell is mounted on the first connecting line to measure the tension of the first connecting line.
Optionally, the two ends of each chain block are respectively connected to the mounting frame and the corresponding gear box, and the chain block further comprises:
four auxiliary lug plates which are distributed at equal intervals along the circumferential direction of the gear box are arranged on the peripheral wall of each gear box, two auxiliary lug plates of each gear box which are parallel to the horizontal plane are called horizontal lug plates, and the other two auxiliary lug plates of each gear box which are parallel to the gravity direction are called vertical lug plates;
connecting a first connecting rope corresponding to a first mounting hole from top to bottom with a vertical lug plate of the gear box in the same mounting hole,
all except first all the mounting hole corresponds first connecting rope connects the compensating beam, the compensating beam is on a parallel with the horizontal plane and the mounting bracket has the surface of mounting hole, the both ends of compensating beam all have one and connect the rope with the second that the gear box links to each other, two the second is connected the rope and is kept away from the one end of compensating beam respectively with same two of gear box the horizontal otic placode links to each other.
Optionally, said mounting four said torsion blocks between each said gearbox and said mounting bracket comprises:
the torsion stop blocks corresponding to the gear boxes in each row of the mounting holes are sequentially mounted in a row;
and the torsion stop blocks of the gear box corresponding to the mounting holes are sequentially mounted in the direction from bottom to top.
Optionally, the sequentially mounting the torsion block of the gearbox corresponding to each mounting hole in the direction from bottom to top includes:
and in the direction from bottom to top, four torsion stoppers of each gear box are installed anticlockwise.
Optionally, the sequentially installing the torsion block of the gearbox corresponding to each installation hole in the direction from bottom to top further includes:
tensioning the chain block connected with one gear box to enable the chain block to bear 1/2 weight of the gear box;
the torsion stop blocks are sequentially arranged at the right lower corner and the left lower corner of the gear box;
unloading the weight of the gear box born by the chain block;
measuring two block mounting spaces between the upper left corner and the upper right corner of the gear box and the corresponding torsion baffle;
processing two torsion stop blocks according to the stop block mounting space;
and respectively installing the two processed torsion check blocks to the two check block installation spaces.
Optionally, the sequentially installing the torsion block of the gearbox corresponding to each installation hole in the direction from bottom to top further includes:
and checking whether the clearance between the torsion stop block corresponding to each gear box and the torsion baffle is qualified or not.
The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:
when the ocean platform gear box is required to be connected onto the mounting frame, a complete mounting frame is provided firstly, the mounting holes of the array on the mounting frame provide mounting space for the gear box, and the torsion baffle plates at the four corners of each mounting hole can be matched with the torsion stop block. And then, two ends of each chain block are respectively connected to the mounting frame and one gear box, the minimum height of each chain block is greater than the maximum height of the mounting hole corresponding to the same chain block, and the chain blocks can provide support for the corresponding gear boxes in the vertical direction and play a role in adjusting the distance between the gear boxes and the corresponding mounting holes. When installing the gear box to the mounting hole in, certain positioning action can be played to the gear box to the mounting hole itself, and chain block is mated again, can adjust the position of the gear box in every mounting hole, adjust the axis of gear box with when the axis coincidence of mounting hole, the gear box position is comparatively stable and be difficult for rocking. The position adjustment of gear box targets in place, and the gravity of gear box is supported by chain block and mounting bracket, and the position between the adjacent gear box is also comparatively accurate, then the position of the torsional dog of installation between every gear box and mounting bracket at last can obtain guaranteeing, effectively improves the stable connection between torsional dog and the torsional baffle between gear box and the mounting bracket. The connection quality and the stress condition of the plurality of gear boxes and the mounting frame are improved, so that the service life of the gear boxes is prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an ocean platform provided by an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a mating of a gearbox and a mounting bracket of an offshore platform provided by an embodiment of the disclosure;
FIG. 3 is a flow chart of a method for installing a gearbox on an offshore platform according to an embodiment of the present disclosure;
FIG. 4 is a flow chart of another method for installing a gearbox on an offshore platform provided by an embodiment of the disclosure;
5-7 are schematic diagrams of an installation process of a gearbox of an offshore platform provided by an embodiment of the disclosure;
FIG. 8 is a schematic structural view of a balance beam provided by embodiments of the present disclosure;
FIG. 9 is a cross-sectional view of a balance beam provided by embodiments of the present disclosure;
FIG. 10 is a sequential view of the installation of four twist stops for a gearbox according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," "third," and similar terms in the description and claims of the present disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", "top", "bottom", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.
To facilitate understanding, fig. 1 and fig. 2 are provided first, fig. 1 is a schematic structural diagram of an ocean platform provided by an embodiment of the present disclosure, and referring to fig. 1, it can be seen that the mounting bracket 100 itself is a cylindrical-like structure with a regular cross section and two ends. A plurality of gear boxes 200 are required to be mounted on each mounting block 100.
Fig. 2 is a schematic diagram of the gearbox and the mounting bracket of the offshore platform provided by the embodiment of the disclosure, and referring to fig. 2, it can be known that the transmission of force between the gearbox 200 and the mounting bracket 100 needs to be performed through the cooperation of the torsion baffle 1 and the torsion block 2. The four corners of each gear box 200 are provided with torsion stoppers 2 matched with the torsion baffles 1, and the torsion stoppers 2 between two adjacent gear boxes 200 share one torsion baffle 1 in the vertical direction.
In implementations provided by the present disclosure, the axis of the mount 100 is generally perpendicular to the horizontal plane as the mount 100 is in normal use and placement.
The present disclosure will be described below with reference to the accompanying drawings. Fig. 3 is a flowchart of an installation method of a gearbox of an offshore platform according to an embodiment of the present disclosure, and as can be seen from fig. 3, an installation method of a gearbox of an offshore platform according to an embodiment of the present disclosure includes:
s101: the utility model provides a chain block that an installation frame, a plurality of gear boxes and a plurality of gear box one-to-one and four that correspond with every gear box twist reverse the stop, the installation frame have with a plurality of mounting holes of a plurality of gear box one-to-ones and a plurality of mounting hole be array distribution, the four corners of every mounting hole all has one and twists reverse the baffle.
S102: and two ends of each chain block are respectively connected with the mounting frame and the corresponding gear box, and the minimum height of each chain block is greater than the maximum height of the mounting hole corresponding to the same chain block.
S103: and putting each gear box into the corresponding mounting hole, and adjusting the chain block until the axis of the gear box corresponding to each chain block coincides with the axis of the mounting hole.
S104: four torsion stoppers are arranged between each gear box and the mounting frame, and each torsion stopper is distributed at the four corners of each gear box and is abutted against one torsion baffle.
When the ocean platform gear box is required to be connected onto the mounting frame, a complete mounting frame is provided firstly, the mounting holes of the array on the mounting frame provide mounting space for the gear box, and the torsion baffle plates at the four corners of each mounting hole can be matched with the torsion stop block. And then, two ends of each chain block are respectively connected to the mounting frame and one gear box, the minimum height of each chain block is greater than the maximum height of the mounting hole corresponding to the same chain block, and the chain blocks can provide support for the corresponding gear boxes in the vertical direction and play a role in adjusting the distance between the gear boxes and the corresponding mounting holes. When installing the gear box to the mounting hole in, certain positioning action can be played to the gear box to the mounting hole itself, and chain block is mated again, can adjust the position of the gear box in every mounting hole, adjust the axis of gear box with when the axis coincidence of mounting hole, the gear box position is comparatively stable and be difficult for rocking. The position adjustment of gear box targets in place, and the gravity of gear box is supported by chain block and mounting bracket, and the position between the adjacent gear box is also comparatively accurate, then the position of the torsional dog of installation between every gear box and mounting bracket at last can obtain guaranteeing, effectively improves the stable connection between torsional dog and the torsional baffle between gear box and the mounting bracket. The connection quality and the stress condition of the plurality of gear boxes and the mounting frame are improved, so that the service life of the gear boxes is prolonged.
It should be noted that the mounting bracket itself may be mounted to the platform. The mounting frame and the mounting holes in the mounting frame can be machined, the torsion baffles at the four corners of the mounting holes can be machined or welded by taking the mounting holes as a reference, and the four corners of the mounting holes can be the four corners of an external regular quadrangle of the mounting holes. And an L-shaped mounting groove corresponding to the torsion stop block is formed in the outer wall of each gear box, which is parallel to the axial direction of the gear in the gear box.
Fig. 4 is a flowchart of another method for installing a gearbox of an offshore platform according to an embodiment of the present disclosure, and referring to fig. 4, the method for installing a gearbox of an offshore platform may further include:
s201: the utility model provides a chain block that an installation frame, a plurality of gear boxes and a plurality of gear box one-to-one and four that correspond with every gear box twist reverse the stop, the installation frame have with a plurality of mounting holes of a plurality of gear box one-to-ones and a plurality of mounting hole be array distribution, the four corners of every mounting hole all has one and twists reverse the baffle.
S202: and two ends of each chain block are respectively connected with the mounting frame and the corresponding gear box, and the minimum height of each chain block is greater than the maximum height of the mounting hole corresponding to the same chain block.
Optionally, link to each other every chain block's both ends with mounting bracket and the gear box that corresponds respectively, include: a supporting frame is arranged at one end with larger height of the mounting frame, the supporting frame extends out of one end of the mounting frame, and the length of the supporting frame extending out of the mounting frame in the axial direction of the mounting hole is more than or equal to half of the axial length of the gear box; two ends of the chain block are respectively connected with the supporting frame and the corresponding gear case.
The support frame extending out of the mounting frame is additionally arranged on the mounting frame, the length of the support frame extending out of the mounting frame in the axial direction of the mounting hole is more than or equal to half of the axial length of the gear box, the support frame has enough space for providing mounting space for the chain block, and different positions can be selected on the support frame to be connected with the chain blocks corresponding to different gear boxes. The chain block's of being convenient for connection and installation, and can adjust the position of the chain block that every gear box corresponds to guarantee that every chain block's state all can keep vertical, and provide good and stable support to the gear box that the chain block corresponds.
It should be noted that the support frame may be disposed on an end face of one end of the mounting bracket.
Illustratively, the support frame includes supporting beams corresponding to at least two rows of mounting holes, and all gear boxes in each row of mounting holes are connected with the corresponding supporting beams through chain blocks.
The support frame is arranged to comprise support beams which are in one-to-one correspondence with the mounting holes in each row, the chain blocks to be connected with the gear boxes in the mounting holes in each row can be connected to the corresponding support beams, and the good connection of the gear boxes in the mounting holes in each row can be realized while the cost is controlled. The installation cost of the gear box is ensured while the position of the gear box is adjusted.
Alternatively, the support beam may be an i-beam or bar block. The present disclosure is not so limited.
Exemplarily, a connecting lug can be added on the I-shaped steel, and the chain block can be connected with the connecting lug through a steel wire rope. Can be convenient for the stable connection between the chain block and the supporting beam.
Optionally, each support beam may be provided with a plurality of connecting lugs, and the number of the connecting lugs on the same support beam corresponds to the number of all the mounting holes in a row of mounting holes corresponding to the support beam. The plurality of connecting lugs may be distributed on the support beam at equal intervals in an axial direction parallel to the mounting hole.
On the one hand, the installation of the connecting lifting lug is convenient, and on the other hand, the installation between the connecting lifting lug and the chain block is also convenient to realize. And certain intervals are arranged between the connecting lifting lugs, and adjustment spaces of the chain blocks corresponding to different gear boxes can be provided.
Optionally, link to each other every chain block's both ends with mounting bracket and the gear box that corresponds respectively, still include: an auxiliary lug plate is arranged on the peripheral wall of each gear box; and the auxiliary lug plate is connected with the chain block by using a first connecting rope. The stable connection between the chain block and the gear box can be realized through the auxiliary lug plate and the first connecting rope.
Optionally, a load cell is mounted on the first connecting cord to measure the tension of the first connecting cord.
Install the dynamometer on first connecting rope in order to measure the tension of first connecting rope can play the effect that improves the position accuracy of control gear box, for example the total weight of known gear box obtains the judgement tension that first connecting rope corresponds under the circumstances of the axis coincidence of gear box and mounting hole, then can control chain block's flexible, is greater than under the circumstances of judgement tension at the tension of first connecting rope, needs lax chain block, otherwise then goes up the handle chain block. The position of the gear box can be accurately adjusted, and the installation efficiency of the gear box can be improved.
Optionally, link to each other every chain block's both ends with mounting bracket and the gear box that corresponds respectively, still include:
four auxiliary lug plates which are distributed at equal intervals along the circumferential direction of the gear box are arranged on the peripheral wall of each gear box, two auxiliary lug plates which are parallel to the horizontal plane of each gear box are called horizontal lug plates, and the other two auxiliary lug plates which are parallel to the gravity direction of each gear box are called vertical lug plates; the first connecting rope that first mounting hole from top to bottom corresponds links to each other with the vertical otic placode of gear box in the same mounting hole, connects the compensating beam at the first connecting rope that all mounting holes except first mounting hole correspond, the compensating beam is on a parallel with the surface that horizontal plane and mounting bracket have the mounting hole, the both ends of compensating beam all have one and link to each other with the gear box second and connect the rope, two second are connected the one end that the compensating beam was kept away from to the rope and are linked to each other with two horizontal otic placodes of same gear box respectively.
Four supplementary otic placodes of increase on the gear box are convenient for realize being connected between first connecting rope and the gear box on the one hand, and four supplementary otic placodes of on the other hand also play the effect of certain judgement gear box position. And to installing the gear box in same row mounting hole, the vertical otic placode of the gear box that first mounting hole corresponds links to each other with first connecting rope is direct, and the gear box that remaining mounting hole corresponds then through two horizontal otic placodes, two second connecting rope, compensating beam realization and first connecting rope between be connected, can be so that the range between a plurality of gear boxes is comparatively compact, and the weight of gear box also can obtain the outrigger.
Fig. 5 to 7 are schematic diagrams illustrating an installation process of a gearbox of an ocean platform according to an embodiment of the present disclosure, and fig. 5 to 7 sequentially show a front view of a plurality of gearboxes on an installation frame connected to the installation frame via a chain block, a side view of the plurality of gearboxes on the installation frame connected to the installation frame via a chain block, and a cross-sectional view of the plurality of gearboxes on the installation frame connected to the installation frame via a chain block. The structure and relative positions of the supporting frame 3, the supporting beam 31, the connecting lifting lug 4, the chain block 5, the balance beam 6, the first connecting rope 7, the dynamometer 8 and the second connecting rope 9 are shown in fig. 5, and the structure of the auxiliary lug plate 10 on the gear box 200 is shown in fig. 6.
It should be noted that the connection between the gear box 200 and the auxiliary lug plate 10 can be realized by bolts, and the auxiliary lug plate 10 does not need to be removed. Subsequent repair or replacement of the gearbox 200 may be facilitated.
Fig. 8 is a schematic structural diagram of a balance beam provided in an embodiment of the present disclosure, fig. 9 is a cross-sectional view of the balance beam provided in the embodiment of the present disclosure, and it can be seen from fig. 8 and 9 that the balance beam 6 may have a cylindrical shape, and the balance beam 6 and the second connecting rope 9 may be connected by an ear plate structure. It is possible to realize stable connection between the gear box 200 and the first connecting rope 7 and to reasonably control the installation cost of the gear box 200.
S203: and putting each gear box into the corresponding mounting hole, and adjusting the chain block until the axis of the gear box corresponding to each chain block coincides with the axis of the mounting hole.
The stable adjustment of the gear box can be realized by controlling the movement and the extension of the chain block. When adjusting the position of the gear box in each row, the position of the gear box in each mounting hole can be adjusted in sequence from top to bottom. The gearbox in the mounting hole below is prevented from being influenced by the position of the gearbox from above.
S204: sequentially mounting the torsion stop blocks corresponding to the gear boxes in each row of mounting holes in a row; and the torsion stop blocks of the gear box corresponding to the mounting holes are sequentially arranged in the direction from bottom to top.
When all the gearboxes on the mounting frame are mounted, the gearboxes in the mounting holes of the next column can be mounted after the gearboxes in the mounting holes of the column are mounted by taking the mounting holes of each column as a unit. And when the gear box of the inside of every row of mounting hole of installation, can follow the supreme torsional dog of installing every gear box in proper order down, can reduce the influence that comes from gravity that the gear box can receive, avoid installing earlier behind the moment of torsion dog of gear box top, the gear box moves down under the action of gravity and leads to the gear box and twist the condition of contact failure between the dog to appear. The connection stability and the stable stress between the gear box and the torsion stop block are improved.
Optionally, the installation of the torsion block of the gearbox corresponding to each installation hole in the direction from bottom to top in turn includes: four twist stops per gearbox are mounted counterclockwise in the direction from bottom to top. The installation of the torsion stop block is convenient, and the connection quality between the gear box and the torsion stop block can be ensured.
Exemplarily, the torsion block of the gear box corresponding to each mounting hole is sequentially mounted in the direction from bottom to top, and the torsion block further comprises:
tensioning a chain block connected with the gear box to ensure that the chain block bears 1/2 weight of the gear box; a torsion stop block is sequentially arranged at the right lower corner and the left lower corner of the gear box; unloading the weight of the gear box born by the chain block; measuring two block mounting spaces between the upper left corner and the upper right corner of the gear box and the corresponding torsion baffle; processing two torsion check blocks according to the check block mounting space; and respectively installing the two processed torsion check blocks to the two check block installation spaces.
The chain block bears 1/2 weight of the gear box, so that the axis of the gear box is basically coincident with the axis of the mounting hole, and a torsion stop block is mounted in a stop block mounting space between the lower part of the gear box and the corresponding torsion stop plate. Under the condition that the contact among the torsion stop block, the gear box and the torsion baffle is good, the weight of the gear box born by the chain block is unloaded, the weight of the gear box is transferred to the mounting frame, the torsion stop block and the torsion baffle, and the torsion stop block is tightly pressed on the torsion baffle by the gear box.
Before the torque stopper is installed between the gear box and the torsion baffle below the gear box, the space between the gear box and the torsion baffle below the gear box may be measured, and the torsion stopper may be installed between the gear box and the torsion baffle below the gear box after being processed according to the space between the gear box and the lower part of the gear box. The contact between each gear box and the corresponding torsion stop block and the torsion baffle plate of the gear box can be ensured to be tight and stable.
Optionally, the torsion block of the gearbox corresponding to each mounting hole is sequentially mounted in a direction from bottom to top, and the torsion block further includes: and checking whether the clearance between the torsion stop corresponding to each gear box and the torsion baffle is qualified or not. The connection stability between the finally obtained gear box and the mounting frame can be ensured.
Illustratively, the clearance between the twist stop and the twist stop may be checked by a feeler. And the implementation is easy.
Fig. 10 is a sequential view illustrating the installation of four twist stops of a gearbox according to an embodiment of the present disclosure, and referring to fig. 10, the four twist stops of fig. 10 may be installed in sequence starting from a twist stop labeled 2 in fig. 10 in a direction of a counterclockwise arrow in the drawing.
Although the present disclosure has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the disclosure.
Claims (10)
1. A method of installing an offshore platform gearbox, comprising:
providing a mounting frame, a plurality of gear boxes, chain blocks in one-to-one correspondence with the gear boxes and four torsion stop blocks corresponding to each gear box, wherein the mounting frame is provided with a plurality of mounting holes in one-to-one correspondence with the gear boxes, the mounting holes are distributed in an array manner, and four corners of each mounting hole are provided with a torsion baffle;
connecting two ends of each chain block with the mounting frame and the corresponding gear box respectively, wherein the minimum height of each chain block is greater than the maximum height of the mounting hole corresponding to the same chain block;
placing each gear box into the corresponding mounting hole, and adjusting the chain blocks until the axis of the gear box corresponding to each chain block is superposed with the axis of the mounting hole;
and four torsion stoppers are arranged between each gear box and the mounting frame, and each torsion stopper is distributed at the four corners of each gear box and abuts against one torsion baffle.
2. The method for installing the offshore platform gearbox according to claim 1, wherein the step of connecting the two ends of each chain block with the mounting frame and the corresponding gearbox respectively comprises the following steps:
a support frame is arranged at one end with a larger height of the mounting frame, the support frame extends out of one end of the mounting frame, and the length of the support frame extending out of the mounting frame in the axial direction of the mounting hole is greater than or equal to half of the axial length of the gear box;
and connecting two ends of the chain block with the support frame and the corresponding gear box respectively.
3. The method for installing the offshore platform gearbox according to claim 2, wherein the support frame comprises support beams corresponding to at least two rows of the installation holes, and all the gearboxes in each row of the installation holes are connected with the corresponding support beams through the chain blocks.
4. The method for installing the gearbox of the offshore platform according to any one of claims 1 to 3, wherein the connecting of the two ends of each chain block with the mounting frame and the corresponding gearbox respectively further comprises:
an auxiliary lug plate is arranged on the peripheral wall of each gear box;
and connecting the auxiliary lug plate with the chain block by using a first connecting rope.
5. The method of claim 4, wherein a load cell is mounted on the first tether to measure the tension of the first tether.
6. The method for installing a gearbox on an offshore platform according to claim 4, wherein the step of connecting the two ends of each chain block with the mounting frame and the corresponding gearbox respectively further comprises the steps of:
four auxiliary lug plates which are distributed at equal intervals along the circumferential direction of the gear box are arranged on the peripheral wall of each gear box, two auxiliary lug plates of each gear box which are parallel to the horizontal plane are called horizontal lug plates, and the other two auxiliary lug plates of each gear box which are parallel to the gravity direction are called vertical lug plates;
connecting a first connecting rope corresponding to a first mounting hole from top to bottom with a vertical lug plate of the gear box in the same mounting hole,
all except first all the mounting hole corresponds first connecting rope connects the compensating beam, the compensating beam is on a parallel with the horizontal plane and the mounting bracket has the surface of mounting hole, the both ends of compensating beam all have one and connect the rope with the second that the gear box links to each other, two the second is connected the rope and is kept away from the one end of compensating beam respectively with same two of gear box the horizontal otic placode links to each other.
7. A method of installing an offshore platform gearbox according to any one of claims 1 to 3, wherein the installation of four twist stops between each gearbox and the mounting bracket comprises:
the torsion stop blocks corresponding to the gear boxes in each row of the mounting holes are sequentially mounted in a row;
and the torsion stop blocks of the gear box corresponding to the mounting holes are sequentially mounted in the direction from bottom to top.
8. The method for installing the offshore platform gearbox according to claim 7, wherein the installing the torsion block of the gearbox corresponding to each installation hole in sequence in the direction from bottom to top comprises the following steps:
and in the direction from bottom to top, four torsion stoppers of each gear box are installed anticlockwise.
9. The method for installing a gearbox on an offshore platform according to claim 8, wherein the installing the torsion block of the gearbox corresponding to each installation hole in sequence in the direction from bottom to top further comprises:
tensioning the chain block connected with one gear box to enable the chain block to bear 1/2 weight of the gear box;
the torsion stop blocks are sequentially arranged at the right lower corner and the left lower corner of the gear box;
unloading the weight of the gear box born by the chain block;
measuring two block mounting spaces between the upper left corner and the upper right corner of the gear box and the corresponding torsion baffle;
processing two torsion stop blocks according to the stop block mounting space;
and respectively installing the two processed torsion check blocks to the two check block installation spaces.
10. The method for installing a gearbox on an offshore platform according to claim 9, wherein the installing the torsion block of the gearbox corresponding to each installation hole in sequence in the direction from bottom to top further comprises:
and checking whether the clearance between the torsion stop block corresponding to each gear box and the torsion baffle is qualified or not.
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| CN202111421829.5A CN114352706B (en) | 2021-11-26 | 2021-11-26 | Ocean platform gear box installation method |
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| CN202111421829.5A CN114352706B (en) | 2021-11-26 | 2021-11-26 | Ocean platform gear box installation method |
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|---|---|
| CN114352706B (en) | 2024-04-26 |
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