A lifting device for lifting an oversized valve

Abstract

This utility model relates to the field of lifting equipment technology and discloses a lifting equipment for lifting ultra-large valves, solving the problems mentioned in the background art. It includes a lifting beam, a lifting fork, a plate hook, an extension shaft, a baffle, and fastening components. The lifting beam is a double-lifting-point beam with symmetrical lifting points at both ends, configured to connect to a crane hook. One end of the lifting fork is connected to the lifting beam through an adjustable mounting hole group, and the other end is hinged to the plate hook. The plate hook is detachably connected to the valve shaft through the extension shaft. The baffle is located at the end of the extension shaft and fixed by the fastening components to limit the axial displacement of the plate hook. The mounting hole group is spaced along the length of the lifting beam to adapt to the lifting requirements of valves of different specifications. This utility model facilitates the parallel movement and vertical / horizontal position conversion of ultra-large valves. The design of the dedicated lifting equipment can meet various needs in the manufacturing and installation process of ultra-large valves, facilitating the parallel movement and vertical / horizontal position conversion of the valves and improving work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of lifting tool technology, specifically a lifting tool for lifting ultra-large valves. Background Technology

[0002] As various large-scale engineering projects continue to advance, the size and specifications of turbine inlet butterfly valves are also constantly increasing. Currently, the diameter of the butterfly valves produced by our company has successfully exceeded 7.5 meters, and the weight of the main valve (excluding the crank and counterweight) has reached 350 tons.

[0003] The sheer size and weight of the structure make traditional hoisting methods extremely difficult to implement and unable to meet current engineering requirements. Therefore, our company has meticulously developed and manufactured a set of specialized hoisting tools to effectively solve the hoisting challenges of ultra-large valves. Utility Model Content

[0004] To solve the above problems, this utility model provides the following technical solution: a lifting device for lifting ultra-large valves, comprising a lifting beam, a lifting fork, a plate hook, an extension shaft, a baffle, and fastening components.

[0005] The lifting beam is equipped with lifting points, which are configured to connect to the crane hook.

[0006] One end of the lifting fork is connected to the lifting beam through an adjustable mounting hole group, and the other end is hinged to the plate hook;

[0007] The plate hook is detachably connected to the valve shaft via an extended shaft;

[0008] The baffle is located at the end of the extended shaft and is fixed by a fastening assembly to limit the axial displacement of the plate hook;

[0009] The mounting holes are spaced apart along the length of the lifting beam to accommodate the lifting requirements of valves of different specifications.

[0010] Furthermore, the baffle is a detachable annular structure with a clearance fit between the inner ring and the extended shaft. The fastening assembly includes a stud, a washer, and a nut, with the stud penetrating the radial through hole of the baffle and the extended shaft.

[0011] Furthermore, the mounting hole group connecting the lifting fork and the lifting beam includes at least one set of equally spaced holes, and a self-lubricating bearing is provided at the hinge point between the plate hook and the lifting fork.

[0012] Furthermore, the lifting beam is a double-point lifting beam, with the lifting points symmetrically distributed at both ends of the beam.

[0013] Furthermore, the lifting beam is a single-point lifting beam, with a single lifting point in the middle of the beam, and the position of the lifting point coincides with the projection of the valve's center of gravity.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Facilitates parallel movement and vertical / horizontal position conversion of ultra-large valves: The design of the special lifting tool can meet various needs in the manufacturing and installation process of ultra-large valves, facilitating parallel movement and vertical / horizontal position conversion of valves, and improving work efficiency.

[0016] 2. Solving the Manufacturing Challenges of Ultra-Large Valves: With the increasing number of ultra-large valves, traditional hoisting methods can no longer meet the demands. The emergence of specialized hoisting tools has effectively solved the manufacturing challenges of ultra-large valves, providing strong support for their production and installation.

[0017] 3. Broad prospects for application: The specialized lifting tool is reasonably designed, easy to use, safe and reliable, and has broad prospects for application. It can be applied to the lifting of various ultra-large valves, providing better solutions for engineering construction.

[0018] In conclusion, this specialized lifting tool for hoisting ultra-large valves, through its reasonable structural design and usage procedures, can conveniently hoist ultra-large valves, solving the manufacturing challenges of ultra-large valves and possessing broad prospects for widespread application. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0022] In the diagram: 1. Lifting beam; 101. Single-point lifting beam; 102. Lifting point; 2. Lifting fork; 201. Mounting hole assembly; 3. Plate hook; 4. Extended shaft; 5. Baffle; 6. Stud; 7. Washer; 8. Nut. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Depend on Figure 1In the first embodiment of this utility model, the components include a lifting beam 1, a lifting fork 2, a plate hook 3, an extension shaft 4, a baffle 5, and fastening components. The lifting beam 1 is a double-lifting-point beam with symmetrical lifting points at both ends, configured to connect to the crane hook. As the most critical load-bearing component in the entire lifting system, the double-lifting-point beam primarily bears the heavy responsibility of connecting two cranes. Its two ends are respectively equipped with lifting points, which are closely connected to the crane hook. During lifting, these points can evenly distribute the load, ensuring that the valve remains stable during transport.

[0025] One end of the lifting fork 2 is connected to the lifting beam 1 through an adjustable mounting hole assembly, and the other end is hinged to the plate hook 3. The lifting fork plays a key role in force transmission in the entire lifting system. One end is connected to the plate hook, and the other end is firmly connected to the lifting beam, which can accurately transmit the valve weight borne by the plate hook to the lifting beam, thereby ensuring smooth and unobstructed force transmission.

[0026] The plate hook 3 is detachably connected to the valve shaft via the extension shaft 4. The plate hook directly connects to the valve's extension shaft, making it a crucial component for valve lifting. Its special design ensures a tight fit with the extension shaft, preventing the valve from slipping or shaking during lifting. Mounting the extension shaft onto the valve shaft not only extends its length, providing ample space for subsequent plate hook installation, but more importantly, during valve rotation, the extension shaft cleverly converts the rotational motion between the plate hook and valve shaft into rotational motion between the plate hook and extension shaft. This effectively prevents damage to the valve shaft from frequent rotation, significantly extending its service life and safety.

[0027] The baffle 5 is located at the end of the extension shaft 4 and is fixed by a fastening assembly to limit the axial displacement of the hook 3. The main function of the baffle is to precisely limit the position of the hook and prevent it from accidentally falling off the extension shaft during hoisting, thus adding a layer of safety to the entire hoisting process.

[0028] The mounting holes are spaced apart along the length of the lifting beam 1 to accommodate the lifting requirements of valves of different specifications.

[0029] The lifting points of the double-point lifting beam 1 are symmetrically distributed at both ends of the lifting beam.

[0030] The baffle 5 is a detachable ring structure, with its inner ring fitting with the extension shaft 4 with clearance. The fastening components include studs 6, washers 7, and nuts 8. The studs 6 pass through the radial through holes of the baffle 5 and the extension shaft 4. These seemingly insignificant small parts play a crucial role in the entire lifting system. They work together to firmly fix the baffle to the extension shaft, ensuring that the plate hook remains stable during lifting and will not loosen or shift.

[0031] The mounting hole group 201 connecting the lifting fork 2 and the lifting beam 1 includes at least one set of equally spaced holes; a self-lubricating bearing is provided at the hinge of the plate hook 3 and the lifting fork 2.

[0032] like Figure 2 In the second embodiment given, the lifting beam 1 is a single-point lifting beam 101, and a single lifting point 102 is provided in the middle of the single-point lifting beam 101. The position of the lifting point 102 coincides with the projection of the valve's center of gravity.

[0033] The steps for using lifting gear are as follows:

[0034] 1. Install extension shaft 4: Carefully and precisely assemble extension shaft 4 onto the valve shaft, ensuring that the installation is secure and the position is accurate. This step not only successfully extends the valve shaft, creating the necessary conditions for the subsequent installation of plate hook 3, but also provides additional protection for the valve shaft, effectively preventing damage to the valve shaft during hoisting.

[0035] 2. Assemble the plate hook 3: After the extension shaft 4 is installed in place, accurately install the plate hook 3 onto the extension shaft 4 to ensure that the connection between the two is tight and reliable, laying a solid foundation for subsequent hoisting operations.

[0036] 3. Install baffle 5: Assemble baffle 5 so that it can accurately limit the position of hook 3 and prevent hook 3 from shifting or falling off during hoisting, thus adding an extra layer of safety to the entire hoisting process.

[0037] 4. Tightening inspection: Install fasteners such as studs 6, washers 7 and nuts 8, and tighten them with professional tools. After tightening, carefully check the gaps on both sides of the plate hook 3 to ensure that the plate hook 3 can rotate freely and flexibly on the extension shaft 4 without any jamming or obstruction.

[0038] 5. Install lifting fork 2: Install lifting fork 2 onto lifting beam 1, making full use of the multiple sets of holes 201 pre-designed on lifting beam 1. These holes 201 are carefully calculated and laid out, and each set of holes 201 can adapt to the lifting requirements of valves of different specifications, thereby realizing the function of one set of lifting tools for multiple purposes and effectively reducing the cost of using lifting tools.

[0039] 6. Complete the assembly: The overhead crane hook accurately lifts the lifting point 102 of the lifting beam 1, and then slowly and steadily lifts the lifting beam 1. After the lifting beam 1 has risen steadily, the plate hook 3 is assembled onto the lifting fork 2, ensuring a firm connection. At this point, the installation of the entire lifting device is complete and it can be put into actual use at any time. It is especially important to emphasize that when using a dual-lifting-point lifting device, the operator must pay close attention to the operating status of the two overhead cranes at all times to ensure that they always operate in sync and resolutely prevent any safety hazards from occurring.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lifting device for lifting ultra-large valves, comprising a lifting beam (1), a lifting fork (2), a plate hook (3), an extension shaft (4), a baffle (5), and fastening components, characterized in that: The lifting beam (1) is provided with lifting points, which are configured to be connected to the crane hook; One end of the lifting fork (2) is connected to the lifting beam (1) through an adjustable mounting hole group, and the other end is hinged to the plate hook (3); The plate hook (3) is detachably connected to the valve shaft via an extended shaft (4); The baffle (5) is located at the end of the extended shaft (4) and is fixed by a fastening assembly to limit the axial displacement of the plate hook (3); The mounting holes are spaced apart along the length of the lifting beam (1) to accommodate the lifting requirements of valves of different specifications.

2. The lifting device for lifting ultra-large valves according to claim 1, characterized in that: The baffle (5) is a detachable ring structure with a clearance fit between the inner ring and the extended shaft (4). The fastening assembly includes a stud (6), a washer (7) and a nut (8). The stud (6) passes through the radial through hole of the baffle (5) and the extended shaft (4).

3. The lifting device for lifting ultra-large valves according to claim 2, characterized in that: The mounting hole group (201) connecting the lifting fork (2) and the lifting beam (1) includes at least one set of equally spaced holes, and the hinge joint between the plate hook (3) and the lifting fork (2) is provided with a self-lubricating bearing.

4. The lifting device for lifting ultra-large valves according to claim 3, characterized in that: The lifting beam (1) is a double-point lifting beam, with the lifting points of the double-point lifting beam (1) symmetrically distributed at both ends of the lifting beam.

5. The lifting device for lifting ultra-large valves according to claim 3, characterized in that: The lifting beam (1) is a single-point lifting beam (101), with a single lifting point (102) in the middle of the single-point lifting beam (101), and the position of the lifting point (102) coincides with the projection of the valve's center of gravity.

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