Lifting appliance for lifting large-specification drill rod
By designing a spreader for large-sized drill rods, using semicircular connections and triangular balance beams, the problems of unstable and low efficiency in traditional lifting methods are solved, and the rapid and safe lifting of the drill rods are achieved.
Patent Information
- Application Number
- CN202421357018.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-14
AI Technical Summary
Traditional lifting methods are difficult to ensure the precise concentricity between the lifting center of large-sized drill rods and the drill rod center, resulting in unstable lifting, safety hazards, and low lifting efficiency.
A large-size drill rod hoisting spreader is designed, using two semicircular connections as the lifting ring part, lifting the drill rod from the lower part, and ensuring the stability of the lifting through a triangular balance beam.
The rapid lifting of drill rods is achieved, the lifting time is shortened, the lifting efficiency is improved, and the labor intensity of workers is reduced through reasonable structural design, and the safety of lifting is enhanced.
Smart Images
Figure CN222647413U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of deep and large vertical shaft drilling method construction, in particular to a hoisting device for hoisting a large-size drill rod. Background Art
[0002] In the field of modern shaft construction, with the continuous expansion of the project scale, the diameter of the shaft is gradually increasing and the depth is also deepening. This change has put forward higher requirements for construction technology, especially in the key link of drill pipe hoisting. In the traditional drilling method construction, the drill pipe is the core component for transmitting torque and drilling pressure. Its specifications are constantly upgraded, and its size and weight are also significantly increased, which brings new requirements for the performance and safety of the hoisting equipment.
[0003] In the traditional hoisting method, wire rope sleeves are commonly used to hoist the tooth-embedded drill pipe. However, the production of wire rope sleeves requires high technical requirements, and they are easily subject to wear and corrosion during use, resulting in reduced strength, which poses safety hazards such as breakage. In addition, when the wire rope sleeve is used to hoist the drill pipe, it is difficult to ensure that the hoisting center is precisely concentric with the drill pipe center, which not only affects the hoisting stability, but may also cause the drill pipe to deflect or collide during the hoisting process, further increasing safety risks.
[0004] As the size and weight of drill rods increase, the efficiency and safety issues during the lifting process become more prominent. In order to improve construction efficiency and ensure construction safety, a new type of lifting equipment for large-size drill rods is urgently needed. Therefore, how to design a lifting equipment for large-size drill rods that has sufficient strength and stability to carry heavy drill rods and can also achieve precise concentricity between the lifting center and the drill rod center to ensure a smooth and safe lifting process is a problem that technicians in this field need to solve urgently. Utility Model Content
[0005] The utility model aims to provide a hanger for hanging large-size drill pipes in view of the problems existing in the background technology.
[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is to design a sling for lifting large-sized drill pipes, including a lifting ring part, a lifting part and a chain hook, the lifting ring part and the lifting part are connected by the chain hook, the lifting ring part is used to lift the tooth-embedded external joint of the drill pipe from the bottom, and the lifting part lifts the entire sling through a crane.
[0007] Furthermore, the ring part includes two completely identical half rings, and the half rings include a ring plate, a connecting part and an ear hook. The ring plate is a semicircular thin plate, and a pair of connecting parts are welded on the upper and lower parts of one side of the ring plate respectively, and a connecting part is welded in the middle part of the other side of the ring plate, and an ear hook is welded in the middle part of the ring plate.
[0008] Furthermore, the connecting part includes an ear plate, a sealing plate, a pin hole column and an adjusting ear plate. The ear plate and the sealing plate are welded to the ring plate. The ear plate and the sealing plate form a closed space with high structural strength and light weight. The pin hole column is welded to the ear plate and the sealing plate, and the adjusting ear plate is welded to the upper and lower ends of the pin hole column. After the welding of the semi-hanging ring is completed, the pin hole can be accurately positioned and installed by processing the holes of the adjusting ear plate and the pin hole column, and the processing amount is small.
[0009] Furthermore, the ear hook is in the shape of an "ear"
[0010] Furthermore, the two half-hanging rings are dead-locked by inserting a rivet pin into the connecting portion 13, and the two half-hanging rings are live-locked by a latch pin.
[0011] Furthermore, the lifting part includes a shackle, a balance beam and a chain hook. The shackle 21 is connected to the balance beam through bolts and nuts. Lifting holes are arranged on the upper part and both sides of the balance beam, and the chain hook is linked to the lifting holes on both sides.
[0012] Furthermore, a weight-reducing hole is provided in the middle of the balance beam.
[0013] Furthermore, the weight-reducing hole in the middle of the balance beam is a triangular structure.
[0014] Furthermore, the shackle is in an "Ω" shape.
[0015] Furthermore, the chain is hoisted by linking the chain hook of the hoisting part and the ear hook of the hoisting ring part.
[0016] Preferably, the chain hook is in a "gourd" shape to ensure the reliability and stability of the connection.
[0017] The advantages and beneficial effects of the utility model are:
[0018] The utility model discloses a sling for hoisting a large-sized drill pipe. By using two semicircular connecting parts combined as a lifting ring part to lift the drill pipe from the bottom, the drill pipe can be quickly lifted, the time for hoisting the drill pipe can be shortened, and the efficiency of hoisting the drill pipe can be improved. By setting a triangular balance beam, the drill pipe hoisting device is not easy to deflect, which is more conducive to the disassembly of the drill pipe. The sling is light in weight, easy to operate, reasonable in structure, simple to operate, and reduces the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the utility model.
[0020] Figure 2 It is a structural schematic diagram of the lifting ring part of the utility model.
[0021] Figure 3 It is a schematic diagram of the utility model when it is closed.
[0022] Figure 4 It is a schematic diagram of the utility model during hoisting.
[0023] Among them, 10-lifting eye part, 11-half lifting eye, 12-ring plate, 13-connecting part, 14-ear plate, 15-closing plate, 16-pin hole column, 17-adjusting ear plate, 20-lifting part, 21-shackle, 22-balance beam, 23-lifting hole, 30-chain, 31-ear hook, 32-chain hook, 40-pin, 41-riveting pin. DETAILED DESCRIPTION
[0024] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention. Example
[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a sling for lifting large-sized drill pipes includes a lifting ring 10, a lifting part 20 and a chain 30. The lifting ring 10 includes two identical half lifting rings 11, each of which is composed of a ring plate 12, a connecting part 13 and an ear hook 31. The ring plate 12 is a semicircular thin plate, and a pair of connecting parts 13 are welded to the upper and lower parts of one side, respectively, and a connecting part 13 is welded to the middle part of the other side. Each connecting part 13 includes an ear plate 14, a sealing plate 15, a pin hole column 16 and an adjusting ear plate 17, which are fixed to the ring plate 12 by welding, forming a connection structure with high structural strength and light weight. The ear hook 31 is welded to the middle part of the ring plate 12 for connecting with the chain 30.
[0026] The lifting part 20 is composed of a shackle 21, a balance beam 22 and a chain hook 32. The shackle 21 is in an "Ω" shape and is connected to the balance beam 22 by bolts and nuts. Lifting holes 23 are provided on the upper part and both sides of the balance beam 22, and the chain hook 32 is connected to the lifting holes 23 on both sides. A weight reduction hole is also provided in the middle of the balance beam 22 to reduce the weight of the entire sling. In this embodiment, the weight reduction hole is a triangular structure, which not only ensures the weight reduction effect, but also does not affect the structural strength of the balance beam 22.
[0027] The chain 30 is hoisted by connecting the chain hook 32 of the lifting part 20 and the ear hook 31 of the lifting ring part 10. In this embodiment, the chain hook 32 is in a "gourd" shape, which can increase the contact area between the chain hook 32 and the ear hook 31, thereby improving the reliability and stability of the connection. At the same time, the chain 30 has a sufficient length to meet the requirement of the hoist moving from the lower part to the upper part of the drill pipe.
[0028] Workflow: During the hoisting process, the two half hoisting rings 11 are merged from the lower part of the central tube of the drill pipe, and then a live lock is achieved by inserting a chain hook 32, and then a dead lock is achieved by riveting into the connecting part 13. This locking method is not only easy to operate, but also can ensure that the half hoisting rings 11 will not separate during the hoisting process, thereby ensuring the stability of the hoisting. When using the hoisting device to hoist the drill pipe, the operator only needs to operate on the ground, without having to operate at the top of the drill pipe, which greatly improves the safety of the hoisting. At the same time, due to the reasonable design, compact structure and light weight of the hoisting device, it can significantly improve the hoisting efficiency and reduce construction costs.
[0029] The above is a detailed introduction to a large-size drill pipe hoisting device provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A sling for slinging a large-sized drill pipe, the sling comprising a sling ring (10), a lifting part (20) and a chain (30), characterized in that: The eye part (10) is composed of two identical semicircular half eyelets (11) connected by pins. An ear hook (31) is arranged on the side of the eye part (10). The lifting part (20) comprises a shackle (21), a balance beam (22) and a chain hook (32). The shackle (21) is arranged on the top of the balance beam (22), and the chain hook (32) is arranged on both sides of the balance beam (22). The eye part (10) and the lifting part (20) are connected by the chain (30).
2. A sling for slinging large-size drill pipes according to claim 1, characterized in that: The half hanging ring (11) comprises a ring plate (12), a connecting portion (13) and an ear hook (31); a pair of connecting portions (13) are welded to the upper and lower portions of one side of the ring plate (12), a connecting portion (13) is welded to the middle portion of the other side of the ring plate (12), and the ear hook (31) is welded to the middle portion of the ring plate (12).
3. A sling for slinging large-size drill pipes according to claim 2, characterized in that: The two half suspension rings (11) are locked together by inserting a rivet pin (41) into the connecting portion (13), and the two half suspension rings (11) are locked together by a latch pin (40).
4. A sling for slinging large-size drill pipes according to claim 3, characterized in that: The connecting portion (13) comprises an ear plate (14), a sealing plate (15), a pin hole column (16) and an adjusting ear plate (17); the ear plate (14) and the sealing plate (15) are welded to the ring plate (12); the ear plate (14) and the sealing plate (15) form a closed space; the pin hole column (16) is welded to the ear plate (14) and the sealing plate (15); and the adjusting ear plate (17) is welded to the upper and lower ends of the pin hole column (16).
5. The hanger for hanging large-size drill pipes according to claim 1, characterized in that: The lifting part (20) comprises a shackle (21), a balance beam (22) and a chain hook (32); the shackle (21) is connected to the balance beam (22) via bolts and nuts; lifting holes (23) are provided on the upper part and both sides of the balance beam (22); and the chain hook (32) is connected to the lifting holes (23) on both sides.
6. A sling for slinging large-sized drill pipes according to claim 5, characterized in that: A weight-reducing hole is provided in the middle of the balance beam (22).
7. A sling for slinging large-size drill pipes according to claim 6, characterized in that: The weight-reducing hole in the middle of the balance beam (22) is a triangular structure.
8. The hanger for hanging large-size drill pipes according to claim 5, characterized in that: The shackle (21) is in an "Ω" shape.
9. A sling for slinging large-size drill pipes according to any one of claims 1 to 8, characterized in that: The chain hook (32) is in the shape of a gourd.