Hoisting tool for overhauling annular blowout preventer

Abstract

The utility model relates to the technical field of annular piece hoisting, in particular to an annular blowout preventer overhauling and hoisting tool which comprises a cross-shaped hoisting frame, four end parts of the cross-shaped hoisting frame are fixedly connected with hoisting lugs, and four frame bodies of the cross-shaped hoisting frame are respectively provided with a sliding hoisting hook assembly in a sliding manner. According to the utility model, the four groups of sliding lifting hook assemblies are mounted by adopting the cross-shaped lifting frame, and the lifting lugs are arranged on the cross-shaped lifting frame; during use, lifting lugs arranged on the cross-shaped lifting frame are connected with lifting equipment through the first group of lifting ropes, and the four groups of sliding lifting hook assemblies are connected with lifting lugs on the annular blowout preventer assembly through the second group of lifting ropes, so that the acting force of the second group of lifting ropes acting on the annular blowout preventer assembly is basically in a vertical state, and the phenomenon that the annular blowout preventer assembly is damaged in the lifting process is avoided. And the extrusion force generated by inclining the lifting rope damages the annular blowout preventer assembly, so that the subsequent installation is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to annular piece hoisting technical field especially relates to a kind of annular blowout preventer overhaul hoisting tool. BACKGROUND

[0002] Annular blowout preventer involves multiple annular parts, when it is overhauled, hoisting tool is needed to assist its assembly and disassembly;When ordinary hoisting tool hoists annular part, because its sling is connected after multiple lifting lugs of annular part, it cannot keep the sling vertical state to hoist annular part, resulting in annular part being deformed by the tensile force of inclined direction;Because the manufacturing precision and matching requirement of blowout preventer annular part are higher, it is difficult to assemble and disassemble after deformation, which affects the overhaul efficiency, so the utility model provides a kind of novel annular blowout preventer overhaul hoisting tool. UTILITY MODEL CONTENT

[0003] The utility model aims at solving the shortcomings in prior art, and provides a kind of annular blowout preventer overhaul hoisting tool.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A kind of annular blowout preventer overhaul hoisting tool, comprising:

[0006] Cross-shaped hanger, the four end portions of the cross-shaped hanger are all fixedly connected with lifting lug, and sliding hook assembly is slidably installed on the four frame bodies of the cross-shaped hanger;

[0007] The center position of the cross-shaped hanger is fixedly installed with transmission box, the lifting lug between the two frame bodies in the first direction of the cross-shaped hanger is rotatably installed with first transmission rod, the first transmission rod penetrates transmission box, the side surface of the first transmission rod and the inside of transmission box are fixedly connected with first bevel gear, and the sliding hook assembly on the two frame bodies in the first direction of the cross-shaped hanger are all threadedly matched with first transmission rod;

[0008] The lifting lug between the first frame body in the second direction of the cross-shaped hanger and transmission box is rotatably installed with second transmission rod, the one end of the second transmission rod in the inside of transmission box is fixedly installed with second bevel gear, and the sliding hook assembly on the first frame body in the second direction of the cross-shaped hanger is threadedly matched with second transmission rod;

[0009] The lifting lug between the second frame body in the second direction of the cross-shaped hanger and transmission box is rotatably installed with third transmission rod, the one end of the third transmission rod in the inside of transmission box is fixedly installed with third bevel gear, and the sliding hook assembly on the second frame body in the second direction of the cross-shaped hanger is threadedly matched with third transmission rod;

[0010] The first bevel gear is engaged with the second bevel gear and the third bevel gear at the same time.

[0011] As a further description of the above technical solution:

[0012] The end of the first transmission rod is provided with a hexagonal section, and a crank handle is fixedly installed on the hexagonal section of the first transmission rod.

[0013] As a further description of the above technical solution:

[0014] The top of the transmission box is detachably provided with an upper cover.

[0015] As a further description of the above technical solution:

[0016] The bottom of the sliding hook assembly is provided with a hook.

[0017] As a further description of the above technical solution:

[0018] The four frame bodies of the cross-shaped hanger are provided with stepped sliding holes, and the sliding hook assemblies are correspondingly installed in the stepped sliding holes on the cross-shaped hanger.

[0019] As a further description of the above technical solution:

[0020] The side surface of each of the four lifting lugs is provided with a polygonal hole, and a thimble is fixedly arranged in the polygonal hole.

[0021] As a further description of the above technical solution:

[0022] The side surface of each of the four lifting lugs is provided with a lifting hole.

[0023] The utility model has the advantages of the following beneficial effects:

[0024] 1. Compared with the prior art, the annular blowout preventer maintenance hoisting tool adopts the cross-shaped hanger to install four groups of sliding hook assemblies, and the cross-shaped hanger is provided with lifting lugs; in use, the lifting lugs provided on the cross-shaped hanger are connected with the hoisting equipment through the first group of lifting ropes, the positions of the four groups of sliding hook assemblies are adjusted to be appropriate (the positions of the four groups of sliding hook assemblies correspond to the positions of the lifting lugs of the annular blowout preventer assembly to be hoisted), and the second group of lifting ropes is used to connect the four groups of sliding hook assemblies with the lifting lugs on the annular blowout preventer assembly, so that the force acting on the annular blowout preventer assembly by the second group of lifting ropes is basically in a vertical state, thereby avoiding damage (deformation) of the annular blowout preventer assembly caused by the extrusion force of the inclined lifting rope during hoisting, and affecting subsequent installation; that is, the first group of lifting ropes is in an inclined state, and the extrusion force generated thereby is borne by the cross-shaped hanger and does not act on the annular blowout preventer assembly. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A three-dimensional view of a ring-shaped blowout preventer maintenance hoisting tool is provided in the utility model;

[0026] Figure 2 A schematic view of a transmission structure of a ring-shaped blowout preventer maintenance hoisting tool is provided in the utility model;

[0027] Figure 3 A front view of a ring-shaped blowout preventer maintenance hoisting tool is provided in the utility model;

[0028] Figure 4 A side view of a ring-shaped blowout preventer maintenance hoisting tool is provided in the utility model;

[0029] Figure 5 A top view of a ring-shaped blowout preventer maintenance hoisting tool is provided in the utility model.

[0030] Legend:

[0031] 1, first frame body; 2, second frame body; 3, third frame body; 4, fourth frame body; 5, first lifting lug; 6, second lifting lug; 7, third lifting lug; 8, fourth lifting lug; 9, first sliding lifting hook assembly; 10, second sliding lifting hook assembly; 11, third sliding lifting hook assembly; 12, fourth sliding lifting hook assembly; 13, first transmission rod; 14, second transmission rod; 15, third transmission rod; 16, crank; 17, first bevel gear; 18, second bevel gear; 19, third bevel gear; 20, transmission box; 21, upper cover. DETAILED DESCRIPTION

[0032] Reference Figures 1-5 The utility model provides a kind of ring-shaped blowout preventer maintenance hoisting tool, comprising: cross-shaped hanger, cross-shaped hanger extends in four directions and is fixedly connected with lifting lug in four ends, i.e., the end of first frame body 1 is fixedly connected with first lifting lug 5, the end of second frame body 2 is fixedly connected with second lifting lug 6, the end of third frame body 3 is fixedly connected with third lifting lug 7, and the end of fourth frame body 4 is fixedly connected with fourth lifting lug 8, wherein, first lifting lug 5 and second lifting lug 6 are parallelly arranged, and third lifting lug 7 and fourth lifting lug 8 are parallelly arranged.

[0033] Cross-shaped hanger has two directions on the whole, i.e., horizontal direction and vertical direction, first frame body 1 and second frame body 2 are in second direction (horizontal direction), third frame body 3 and fourth frame body 4 are in first direction (vertical direction), and second direction and first direction are perpendicular.

[0034] The four frame bodies of the cross-shaped hanger are slidably provided with sliding hook assemblies, and the four sliding hook assemblies are respectively a first sliding hook assembly 9, a second sliding hook assembly 10, a third sliding hook assembly 11 and a fourth sliding hook assembly 12, that is, the first sliding hook assembly 9 is slidably arranged on the first frame body 1, the second sliding hook assembly 10 is slidably arranged on the second frame body 2, the third sliding hook assembly 11 is slidably arranged on the third frame body 3, and the fourth sliding hook assembly 12 is slidably arranged on the fourth frame body 4.

[0035] A transmission box 20 is fixedly arranged at the center of the cross-shaped hanger, the transmission box 20 is a shell structure, the top end of the transmission box 20 is open, and the top end of the transmission box 20 is detachably provided with an upper cover 21, a first transmission rod 13 is rotatably arranged between the lugs on the two frame bodies along the first direction of the cross-shaped hanger, that is, the first transmission rod 13 is rotatably arranged between the first lug 5 and the second lug 6, the first transmission rod 13 penetrates the transmission box 20, a first bevel gear 17 is fixedly connected to the side of the first transmission rod 13 and located in the interior of the transmission box 20, and the sliding hook assemblies on the two frame bodies along the first direction of the cross-shaped hanger are in threaded cooperation with the first transmission rod 13, that is, the third sliding hook assembly 11 and the fourth sliding hook assembly 12 are in threaded cooperation with the first transmission rod 13, and the user controls the third sliding hook assembly 11 and the fourth sliding hook assembly 12 to approach or move away from each other by rotating the first transmission rod 13.

[0036] A second transmission rod 14 is rotatably arranged between the lug on the first frame body along the second direction of the cross-shaped hanger and the transmission box 20, that is, the second transmission rod 14 is rotatably arranged between the first lug 5 and the transmission box 20, a second bevel gear 18 is fixedly arranged at one end of the second transmission rod 14 located in the interior of the transmission box 20, and the sliding hook assembly on the first frame body along the second direction of the cross-shaped hanger is in threaded cooperation with the second transmission rod 14; a third transmission rod 15 is rotatably arranged between the lug on the second frame body along the second direction of the cross-shaped hanger and the transmission box 20, that is, the third transmission rod 15 is rotatably arranged between the second lug 6 and the transmission box 20, a third bevel gear 19 is fixedly arranged at one end of the third transmission rod 15 located in the interior of the transmission box 20, and the sliding hook assembly on the second frame body along the second direction of the cross-shaped hanger is in threaded cooperation with the third transmission rod 15, and the first bevel gear 17 is simultaneously meshed with the second bevel gear 18 and the third bevel gear 19.

[0037] When the user rotates the first transmission rod 13 to drive the third sliding hook assembly 11 and the fourth sliding hook assembly 12 to move, the first transmission rod 13 also drives the first bevel gear 17 to rotate, the first bevel gear 17 is engaged with the second bevel gear 18 and the third bevel gear 19, thereby driving the second bevel gear 18 and the third bevel gear 19 to rotate, and further driving the second transmission rod 14 and the third transmission rod 15 to rotate, the rotation of the second transmission rod 14 correspondingly drives the first sliding hook assembly 9 to slide, and the rotation of the third transmission rod 15 correspondingly drives the second sliding hook assembly to slide.

[0038] The sliding hook assembly and the transmission rod are threadedly connected, by controlling the direction of the thread connection between the sliding hook assembly and the transmission rod, when the transmission rod (the first transmission rod 13, the second transmission rod 14, and the third transmission rod 15) rotates, the four sliding hook assemblies are controlled to slide synchronously towards the center or synchronously towards the outside, so that the four sliding hook assemblies correspond to a circle.

[0039] The end of the first transmission rod 13 is provided with a hexagonal section, and the hexagonal section of the first transmission rod 13 is fixedly installed with a crank 16, and the crank 16 is operated to drive the first transmission rod 13 to rotate.

[0040] The bottom of the sliding hook assembly is provided with a hook, and the side surface of each of the four lifting lugs is provided with a lifting hole.

[0041] As shown in FIG. Figure 3 In use, the first group of lifting ropes is connected with the lifting equipment through the lifting lugs provided on the cross-shaped lifting frame, and the first group of lifting ropes is inclined, after the positions of the four sliding hook assemblies are adjusted (the positions of the four sliding hook assemblies correspond to the positions of the lifting lugs of the annular blowout preventer assembly to be lifted), the second group of lifting ropes is used to connect the four sliding hook assemblies with the lifting lugs on the annular blowout preventer assembly, and the second group of lifting ropes is in a vertical state, so that the force acting on the annular blowout preventer assembly by the second group of lifting ropes is basically in a vertical state, thereby avoiding damage (deformation) to the annular blowout preventer assembly caused by the extrusion force of the inclined lifting ropes during lifting, and affecting the subsequent installation; that is, the first group of lifting ropes is in an inclined state, and the extrusion force generated thereby is borne by the cross-shaped lifting frame and does not act on the annular blowout preventer assembly.

[0042] In an embodiment, a stepped sliding hole is formed in each of the four frame bodies of the cross-shaped lifting frame, and the sliding hook assembly is correspondingly installed in the stepped sliding hole on the cross-shaped lifting frame.

[0043] In an embodiment, a polygonal hole is formed in the side surface of each of the four lifting lugs, a thimble is fixedly arranged in the interior of the polygonal hole, and the transmission rod (the first transmission rod 13, the second transmission rod 14, and the third transmission rod 15) is rotatably installed in the center hole of the thimble.

[0044] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An annular preventer servicing hoisting tool, characterized in that, include: A cross-shaped hanger, wherein the four ends of the cross-shaped hanger are fixedly connected to the lifting ears, and the four frames of the cross-shaped hanger are slidably mounted with sliding hook assemblies; A transmission box (20) is fixedly installed at the center position of the cross-shaped hanger, and a first transmission rod (13) is rotatably installed between the lifting ears on the two frames along the first direction of the cross-shaped hanger, the first transmission rod (13) passes through the transmission box (20), and a first bevel gear (17) is fixedly connected to the side of the first transmission rod (13) and located inside the transmission box (20), and the sliding hook assemblies on the two frames along the first direction of the cross-shaped hanger are both threadedly engaged with the first transmission rod (13); A second transmission rod (14) is rotatably mounted between a lifting ear on a first frame body along a second direction of the cross-shaped hanger and a transmission box (20); a second bevel gear (18) is fixedly mounted on one end of the second transmission rod (14) located inside the transmission box (20); and a sliding hook assembly on the first frame body along the second direction of the cross-shaped hanger is threadably engaged with the second transmission rod (14); A third transmission rod (15) is rotatably mounted between a lifting lug on a second frame body along the second direction of the cross-shaped hanger and a transmission box (20); a third bevel gear (19) is fixedly mounted on one end of the third transmission rod (15) located inside the transmission box (20); and a sliding hook assembly on a second frame body along the second direction of the cross-shaped hanger is threadably engaged with the third transmission rod (15); The first bevel gear (17) is simultaneously meshed with the second bevel gear (18) and the third bevel gear (19).

2. The ring-shaped blowout preventer overhaul hoisting tool according to claim 1, characterized in that: A hexagonal section is provided at the end of the first transmission rod (13), and a crank (16) is fixedly mounted on the hexagonal section of the first transmission rod (13).

3. The ring-shaped blowout preventer overhaul hoisting tool according to claim 1, characterized in that: An upper cover (21) is detachably mounted on the top of the transmission box (20).

4. The ring-shaped blowout preventer overhaul hoisting tool of claim 1, wherein: A hook is provided at the bottom of the sliding hook assembly.

5. The ring-shaped blowout preventer overhaul hoisting tool of claim 1, wherein: Step sliding holes are provided on the four frames of the cross-shaped hanger, and the sliding hook components are correspondingly installed in the step sliding holes on the cross-shaped hanger.

6. The ring-shaped blowout preventer overhaul hoisting tool of claim 1, wherein: The sides of the four lifting ears are each provided with a polygonal hole, and a collar is fixedly provided inside the polygonal hole.

7. The ring-shaped blowout preventer overhaul hoisting tool of claim 1, wherein: The sides of the four lifting ears are all provided with lifting holes.

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