Novel sea drilling and repairing machine derrick
Technical field
The utility model relates to the oil brill and repaiies equipment technical field, specifically is a kind of novel sea drilling and repairing machine derrick.
Background technology
Offshore drill is repaiied the motor-pumped well frame and is matched in offshore drill and repaiies machine platform, carries out offshore drilling and workover treatment.Influenced by ocean windward overall situation, it is the open front derrick of square or rectangle that traditional offshore drill is repaiied motor-pumped well frame employing cross section, and the promptly big down minor structure that goes up has good stability, good rigidly, the characteristics that supporting capacity is big.Fig. 1, Figure 2 shows that traditional derrick structural representation, 1a connects and composes the derrick main body up and down by several derrick main unit, certain altitude position, derrick main body middle part is equipped with and is used to deposit drilling rod, oil pipe, sucker rod etc., and the quadruple board platform 2a that rountrip is provided for the rigger, quadruple board platform 2a is provided with peripheral aisle, be provided with windbreak on every side, quadruple board platform 2a also is equipped with escape apparatus; Crown is provided with overhead traveling crane crane boom 3a, overhead traveling crane 4a, also is equipped with cage ladder 5a, standpipe 6a, base 7a, tongs bascule 8a on the derrick.Derrick main unit 1 be by at four jiaos intilted column and be connected the stull between the column, the cross section that diagonal brace constitutes is the open front framework of square or rectangle, derrick is installed on the rig floor by base 7a.Figure 3 shows that two derrick main unit, 1 joint structural representation, simultaneously also express stull in the derrick main unit 1, diagonal brace and upright post connection structure, the column 22a of the column 21a of last derrick main unit and the frame body unit of going into the well is connected by junction plate 26a, junction plate 27a bolt; The diagonal brace 23a of last derrick main unit, the stull 24a of the frame body unit of going into the well, diagonal brace 25a are connected on the junction plate 27a by bolt, and bolt connects between junction plate 26a, the junction plate 27a.This syndeton must cause the type heart of diagonal brace 23a, stull 24a, diagonal brace 25a, column 21a, column 22a to intersect, and produces additional bending moment when making the column of main carrying stressed, makes force-bearing situation bad.Known technology ocean derrick is subjected to its structural limitations also to have following shortcoming: the quadruple board platform area is restricted, makes drilling rod, oil pipe, sucker rod storing capacity limited; The quadruple board platform aisle is narrow; Owing to be installed in blocking of derrick annex on the derrick such as standpipe, relief line, illuminating line etc., the driller will leave seat when the driller house 9a that is positioned at the derrick side observes quadruple board platform 2a, and can not observe the front side of quadruple board platform 2a.
Summary of the invention
The purpose of this utility model is the deficiency that exists at prior art, a kind of novel sea drilling and repairing machine derrick is provided, in satisfied stability, rigidity, supporting capacity, can improve derrick column force-bearing situation greatly, further increase stability, setback capacity is big, improves the driller and observes quadruple board platform operation situation.
The technical solution of the utility model is:
A kind of novel sea drilling and repairing machine derrick, comprise some derrick main unit, quadruple board platform, the overhead traveling crane crane boom, overhead traveling crane, the cage ladder, standpipe, base, the tongs bascule, the derrick main unit is at four jiaos column and be connected stull between the column, the cross section that diagonal brace constitutes is the open front framework of square or rectangle, several derrick main unit connect and compose the derrick main body up and down, quadruple board platform is installed in derrick main body middle part certain position height, it is characterized in that, described derrick main body is the boundary with the quadruple board platform position, the column of following derrick main unit is vertical the setting, the column of above derrick main unit is the setting that slopes inwardly, the stull of described derrick main unit, the syndeton of diagonal brace and column is: junction plate and column welding, last diagonal brace, stull, following diagonal brace is connected with the junction plate bolt, last diagonal brace, stull, following diagonal brace makes diagonal brace at the link position on the junction plate, stull, following diagonal brace, the section bar center line of column is intersected in a bit; Syndeton between described two derrick main unit columns is: the column of lower end derrick main unit is connected by inside and outside two junction plate bolts with the column of upper end derrick main unit; It is in the vertically disposed derrick main unit that described quadruple board platform is installed in column.
The beneficial effects of the utility model are: be vertically disposed structure straight up and down owing to the following partial design of derrick main body quadruple board platform becomes column 1,, and quadruple board platform is positioned at vertically disposed derrick main unit, thereby increased setback capacity, the aisle is widened; 2, because vertical layouts the such as derrick annex such as standpipe, relief line, illuminating lines, do not block driller's sight line, when the driller observes quadruple board platform at the driller house that is positioned at the derrick side, need not leave seat, just can be observe any position of quadruple board platform, do not observe and can not block influence because of derrick annex such as standpipe, relief line, illuminating line etc. along the oblique upper direction from derrick inside; The formation type heart intersected when 3, each diagonal brace of derrick main unit, stull were connected with the derrick column, and each bridge was stressed when just derrick was stressed crosses, and derrick is more stable like this; 4, the derrick inner space increases, and can set up other derrick annex or equipment and install.
Description of drawings
Fig. 1 is the prior art structural representation.
Fig. 2 is the lateral view of Fig. 1.
Fig. 3 is the zoomed-in view of Y among Fig. 2.Docking structure between syndeton and derrick main unit between expression derrick main unit strut, column.
Fig. 4 is the utility model structural representation.
Fig. 5 is the lateral view of Fig. 4.
Fig. 6 is an X position zoomed-in view among Fig. 5.Express syndeton between derrick main unit strut, column.
Fig. 7 is the zoomed-in view at E position among Fig. 5.Express two derrick main unit docking structures.
The specific embodiment
As Fig. 4, shown in Figure 5, the utility model offshore drill is repaiied the motor-pumped well frame by the derrick main body, quadruple board platform 2, overhead traveling crane crane boom 3, overhead traveling crane 4, cage ladder 5, standpipe 6, base 7, tongs bascule 8 constitutes, the derrick main body is docked up and down by four derrick main unit 1 and is formed, derrick main unit 1 is at four jiaos column and be connected stull between the column, the cross section that diagonal brace constitutes is the open front framework of rectangle, the column of two derrick main unit 1 of hypomere is vertical the setting, form structure straight up and down, the column of two derrick main unit 1 of epimere is the setting that slopes inwardly, form up-small and down-big pyramidal structure, whole derrick main body forms the doleiform shape.Quadruple board platform 2 is installed in the derrick main unit that is positioned at the upper end in two derrick main unit 1 of hypomere, because two derrick main unit 1 of hypomere are designed to structure straight up and down, the pyramidal structure up-small and down-big with respect to prior art, under the situation that derrick bottom opening size limits, the length of quadruple board platform 2 and width all have increase, thereby increased setback capacity, the aisle is widened.It is same because two derrick main unit 1 of hypomere are designed to structure straight up and down, make derrick annex such as standpipe, relief line, illuminating line after the derrick disposed inboard, when the driller observes quadruple board platform 2 at the driller house 9 that is positioned at the derrick side, seat need not be left, any position of quadruple board platform 2 can be observed along the oblique upper direction from derrick inside.
Figure 6 shows that the tie point structural representation of stull, diagonal brace and the column of derrick main unit 1, the connecting portion F of stull, diagonal brace and the column of two derrick main unit 1 of epimere does not do to amplify and shows, its structure is identical with structural principle shown in Figure 6, and only the quantity of diagonal brace is different.Junction plate 25 and column 21 welding, last diagonal brace 22, stull 23, following diagonal brace 24 are connected with junction plate 25 bolts, and last diagonal brace 22, stull 23, following diagonal brace 24 make diagonal brace 22, stull 23 at the link position on the junction plate 25, the section bar center line of diagonal brace 24, column 21 is intersected in a bit down.Formation type heart intersection when each diagonal brace of derrick main unit 1, stull are connected with the derrick column, each bridge is stressed when making derrick stressed crosses, and has improved the load-carrying properties and the stability of derrick greatly.
Be illustrated in figure 7 as two syndeton schematic diagrames between derrick main unit 1 column, the connecting portion G between two derrick main unit 1 columns of epimere does not do to amplify and shows that its structure is identical with Fig. 7.The column 26 of connected lower end derrick main unit 1 is connected by inside and outside two junction plate 28 bolts with the column 27 of upper end derrick main unit 1.
The utility model offshore drill well workover derrick has increased the inner space from bottom to up with respect to prior art, can satisfy the upper end top-drive device locus requirement is installed; The increase of quadruple board platform area makes that drilling rod, oil pipe, sucker rod automatic discharge device are set becomes possibility, can satisfy the requirement of modern Fully-mechanized drilling technology to the derrick inner space thereon.