A hoisting device for oilfield workover operations

Abstract

The utility model relates to oilfield workover operation technical field discloses a kind of hoisting equipment for oilfield workover operation, comprising: hanger, hanger is rectangular shape frame, the top of hanger and the connecting of crane's lifting arm;Collecting roller, collecting roller is symmetrically rotatably connected at the both ends of hanger, the wall surface of each collecting roller is wound with sling, the bottom end of sling is fixedly connected with lifting hook;Auxiliary structure, auxiliary structure is set on the wall surface of sling for reducing the stress of lifting hook, auxiliary structure includes: mainboard, connecting plate, binding ring and auxiliary hook, mainboard is fixedly connected at the bottom end of sling, connecting plate is slidably connected on the wall surface of mainboard, binding ring is symmetrically set on the top of mainboard, auxiliary hook is symmetrically fixedly connected on the wall surface of mainboard side, auxiliary hook and lifting hook flush, by setting auxiliary structure, the pressure when lifting hook hoisting is reduced by the auxiliary hook set before and after lifting hook, and the steel cable bound with the wall surface of binding ring can realize stable and long-life use hoisting.

Description

Technical Field

[0001] This utility model belongs to the field of oilfield well repair operations, specifically, it relates to a lifting device for oilfield well repair operations. Background Technology

[0002] Oilfield well repair is a key technical step in the oil extraction process to maintain normal production and restore or enhance the production capacity of oil wells, and it runs through the entire process of oilfield development.

[0003] Traditional oilfield well workover lifting equipment typically uses two separate lifting devices to lift objects, which results in high stress on each device and a shorter lifespan.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A lifting device for oilfield well workover operations, comprising:

[0007] The hanger is a rectangular frame, and its top is connected to the boom of the crane.

[0008] The take-up rollers are symmetrically connected to both ends of the hanger. Each take-up roller has a hanging rope wound around its wall, and a hook is fixedly connected to the bottom end of the hanging rope.

[0009] The auxiliary structure is set on the wall of the lifting rope to reduce the stress on the hook. The auxiliary structure includes: a main plate, a connecting plate, a binding ring, and an auxiliary hook. The main plate is fixedly connected to the bottom end of the lifting rope, the connecting plate is slidably connected to the wall of the main plate, the binding rings are symmetrically set on the top of the main plate, and the auxiliary hooks are symmetrically fixedly connected to one side wall of the main plate. The auxiliary hooks are flush with the lifting hook.

[0010] In a preferred embodiment of the present invention, the motherboard is rectangular, the connecting plate is rectangular, and two identical connecting plates are provided on the top of the motherboard, one of which is located directly above the motherboard and the other is located on the top side of the motherboard.

[0011] In a preferred embodiment of this utility model, the binding ring is a semi-circular ring, the binding rings on the top of the main board are symmetrical to each other, and the hook is located between the symmetrical auxiliary hooks.

[0012] In a preferred embodiment of this utility model, the auxiliary structure further includes an adjustment shaft and a sliding plate. A rectangular plate is symmetrically fixedly connected to the top of the main board. The adjustment shaft is rotatably connected between the symmetrical rectangular plates on the top of the main board. The sliding plate is symmetrically threaded to the wall of the adjustment shaft.

[0013] In a preferred embodiment of this utility model, the sliding plate can be slidably connected to the symmetrical rectangular plate on the top of the main board, the wall surface of the adjustment shaft is provided with opposing threads, and the two side connecting plates on the top of the main board are respectively fixedly connected to the symmetrical sliding plate wall surface.

[0014] In a preferred embodiment of this utility model, a backup rope is fixedly connected to the wall surface of the main board facing the other main board, and a top hook is fixedly connected to the bottom center of the hanger.

[0015] In a preferred embodiment of this utility model, the other end of the backup rope can be fixedly connected to the bottom of the top hook, and the same backup rope is provided on the wall of each main board, with one end of each backup rope being fixedly connected to the top hook.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. By setting up auxiliary structures and utilizing auxiliary hooks at the front and rear of the hook, the pressure on the hook during lifting is reduced, and the steel cables bound to the wall of the shackle can achieve stable and long-lasting lifting.

[0018] 2. Setting up a backup rope can prevent serious accidents caused by the breakage of the hoisting rope during hoisting, while the top hook can further improve the safety of hoisting by connecting to the top of the object to be hoisted.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is a front view of the present invention;

[0023] Figure 3 This is a perspective view of the motherboard wall structure of this utility model;

[0024] Figure 4 This is a disassembly diagram of the connecting plate and the main board of this utility model;

[0025] Figure 5 This is a schematic diagram of the symmetrical plate position of this utility model.

[0026] In the diagram: 20, hanger; 21, take-up roller; 22, lifting rope; 23, hook; 30, main board; 31, adjusting shaft; 32, moving plate; 33, connecting plate; 34, binding ring; 35, auxiliary hook; 36, spare rope; 37, top hook. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, a lifting device for oilfield well workover operations includes: a lifting frame 20, which is a rectangular frame, and the top of the lifting frame 20 is connected to the boom of a crane;

[0029] The take-up roller 21 is symmetrically rotated and connected to both ends of the hanger 20. Each take-up roller 21 has a hanging rope 22 wound on its wall surface. The bottom end of the hanging rope 22 is fixedly connected to a hook 23. This is existing technology, so it will not be described in detail here.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the auxiliary structure is set on the wall of the lifting rope 22 to reduce the force on the hook 23. The auxiliary structure includes: main plate 30, connecting plate 33, binding ring 34 and auxiliary hook 35. The main plate 30 is fixedly connected to the bottom end of the lifting rope 22. The connecting plate 33 is slidably connected to the wall of the main plate 30. The binding ring 34 is symmetrically arranged on the top of the main plate 30. The auxiliary hook 35 is symmetrically fixedly connected to one side wall of the main plate 30. The auxiliary hook 35 is flush with the hook 23.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the main board 30 is a rectangular plate, the connecting plate 33 is a rectangular plate, and two identical connecting plates 33 are set on the top of the main board 30. One connecting plate 33 is located directly above the main board 30, and the other connecting plate 33 is located on the top side of the main board 30. The binding ring 34 is a semi-circular ring. The binding rings 34 on the top of the main board 30 are symmetrical to each other. The hook 23 is located between the symmetrical auxiliary hooks 35. The auxiliary structure also includes an adjusting shaft 31 and a sliding plate 32. The top of the main board 30 is symmetrically fixedly connected to the rectangular plates. The adjusting shaft 31 is rotatably connected between the symmetrical rectangular plates on the top of the main board 30. The sliding plate 32 is symmetrically threaded to the wall of the adjusting shaft 31. The sliding plate 32 can slide to connect with the symmetrical rectangular plates on the top of the main board 30. The wall of the adjusting shaft 31 is provided with opposing threads. The two connecting plates 33 on the top of the main board 30 are respectively fixedly connected to the walls of the symmetrical sliding plates 32.

[0032] In practical use, the device is first lifted by a crane to be directly above the object to be lifted. Then, the take-up roller 21 is controlled to unwind. At this time, the hook 23 will move downward as the lifting rope 22 extends. After the hook 23 moves to the required position, the hook 23 is tied to the object. Then, the auxiliary hook 35 is also tied to the object at the same time. Then, the reinforcing steel cable is tied to the wall of the binding ring 34 on each side to limit the front and rear walls of the object. The motor installed on the top rectangular plate of the main board 30 controls the rotation of the adjusting shaft 31. As the adjusting shaft 31 rotates, the symmetrical moving plate 32 on the wall of the adjusting shaft 31 will move along the wall of the adjusting shaft 31. When the moving plate 32 moves, it will drive the connecting plate 33 and the binding ring 34 to move synchronously, thereby tightening the steel cable tied to the wall of the symmetrical binding ring 34. When the lifting rope 22 breaks, the backup rope 36 will be connected to the main board 30. The backup rope 36 will replace the lifting rope 22 to lift the main board 30.

[0033] In summary, by setting up auxiliary structures and utilizing auxiliary hooks 35 set before and after the hook 23, the pressure on the hook 23 during hoisting is reduced, and the steel cable bound to the wall by the binding ring 34 can achieve stable and long-lasting hoisting.

[0034] like Figure 2 , Figure 3 and Figure 4 As shown, a backup rope 36 is fixedly connected to the wall surface of the main board 30 facing another main board 30, and a top hook 37 is fixedly connected to the bottom center of the hanger 20. The other end of the backup rope 36 can be fixedly connected to the bottom of the top hook 37. The same backup rope 36 is provided on the wall surface of each main board 30, and one end of each backup rope 36 can be fixedly connected to the top hook 37.

[0035] In practical use, the top hook 37 is tied to the top of the object to be hoisted, and the backup rope 36 will replace the hoisting rope 22 when the hoisting rope 22 breaks.

[0036] In summary, by setting up a backup rope 36, serious accidents caused by the breakage of the hoisting rope 22 during hoisting can be prevented, while the top hook 37 can further improve the safety of hoisting by connecting to the top of the object to be hoisted.

[0037] Working principle: First, the device is lifted by a crane to directly above the object to be lifted. Then, the take-up roller 21 is unwound. At this time, the hook 23 will move downward as the lifting rope 22 extends. After the hook 23 moves to the desired position, it is tied to the object. Then, the auxiliary hook 35 is also tied to the object simultaneously. Then, the binding rings 34 on each side are tied with reinforcing steel cables to limit the front and rear walls of the object. The motor installed on the top rectangular plate of the main board 30 controls the rotation of the adjusting shaft 31. As the adjusting shaft 31 rotates, the symmetrical moving plate 32 on the wall of the adjusting shaft 31 will move along the wall of the adjusting shaft 31. When the moving plate 32 moves, it will drive the connecting plate 33 and the binding rings 34 to move synchronously, thereby tightening the steel cables tied to the walls of the symmetrical binding rings 34. When the lifting rope 22 breaks, the backup rope 36 will be connected to the main board 30 and will replace the lifting rope 22 to lift the main board 30.

[0038] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A hoisting apparatus for use in oilfield workover operations, characterized in that, include: Hanger (20), the hanger (20) is a rectangular frame, and the top of the hanger (20) is connected to the boom of the crane; Take-up roller (21) is symmetrically rotated and connected to both ends of the hanger (20). Each take-up roller (21) has a hanging rope (22) wound on its wall surface. The bottom end of the hanging rope (22) is fixedly connected to a hook (23). The auxiliary structure is set on the wall of the hoisting rope (22) to reduce the force on the hook (23). The auxiliary structure includes: main board (30), connecting plate (33), binding ring (34) and auxiliary hook (35). The main board (30) is fixedly connected to the bottom end of the hoisting rope (22). The connecting plate (33) is slidably connected to the wall of the main board (30). The binding ring (34) is symmetrically set on the top of the main board (30). The auxiliary hook (35) is symmetrically fixedly connected to one side wall of the main board (30). The auxiliary hook (35) is flush with the hook (23).

2. The lifting equipment for oilfield well workover operations according to claim 1, characterized in that, The main board (30) is rectangular, and the connecting plate (33) is rectangular. Two identical connecting plates (33) are provided on the top of the main board (30), one of which is located directly above the main board (30), and the other is located on the top side of the main board (30).

3. The lifting equipment for oilfield well workover operations according to claim 1, characterized in that, The binding ring (34) is a semi-circular ring, and the binding rings (34) on the top of the main board (30) are symmetrical to each other. The hook (23) is located between the symmetrical auxiliary hooks (35).

4. The lifting equipment for oilfield well workover operations according to claim 1, characterized in that, The auxiliary structure also includes an adjustment shaft (31) and a sliding plate (32). A rectangular plate is symmetrically fixedly connected to the top of the main board (30). The adjustment shaft (31) is rotatably connected between the symmetrical rectangular plates on the top of the main board (30). The sliding plate (32) is symmetrically threaded to the wall of the adjustment shaft (31).

5. A lifting device for oilfield well workover operations according to claim 4, characterized in that, The sliding plate (32) can slide on the symmetrical rectangular plate at the top of the main plate (30). The wall of the adjusting shaft (31) is provided with opposing threads. The two connecting plates (33) on the top of the main plate (30) are respectively fixedly connected to the wall of the symmetrical sliding plate (32).

6. The lifting equipment for oilfield well workover operations according to claim 1, characterized in that, A backup rope (36) is fixedly connected to the wall surface of the main board (30) facing the other main board (30), and a top hook (37) is fixedly connected to the bottom center of the hanger (20).

7. A lifting device for oilfield well workover operations according to claim 6, characterized in that, The other end of the backup rope (36) can be fixedly connected to the bottom of the top hook (37). The same backup rope (36) is provided on the wall of each main board (30), and one end of each backup rope (36) can be fixedly connected to the top hook (37).

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