Cylinder valve assembling and welding roundness adjusting support

Abstract

The utility model relates to a cylinder valve assembly welding roundness adjusting support. The cylinder valve assembly welding roundness adjusting support comprises a supporting base, a main beam, a supporting plate and a high-strength tip cone bolt. A rotary clamping groove is formed in the supporting base, the middle of the main beam is rotationally installed on the rotary clamping groove, supporting plates are symmetrically installed at the two ends of the main beam, threaded holes are formed in the supporting plates, high-strength tip cone bolts are installed through the threaded holes in a threaded mode, and the length of the main beam is designed according to the diameter of the cylinder valve. The tip cone bolt on the supporting plate is jacked outwards according to the required rotating length to adjust the roundness, and after the roundness meets the requirement, the tip cone bolt is loosened for roundness remeasurement after the roundness is fixed and kept for a period of time until the roundness meets the requirement in a free state; and the tip cone bolt slightly abuts against the inner wall of the cylinder valve for welding, operation is convenient, and the process is easy to control.

Description

Technical Field

[0001] This application relates to the field of water conservancy and hydropower equipment technology, and in particular to a valve assembly welding adjustment bracket. Background Technology

[0002] Cylindrical valves are widely used in hydro-generator sets, but the large diameter of cylindrical valves in medium and large-sized hydro-generators makes transportation via general roads and underground powerhouses impossible. Typically, they are manufactured in the factory and transported in two halves for on-site welding and assembly. However, this two-part transportation easily causes deformation of the individual halves, resulting in significant roundness deviations after assembly. Since cylindrical valves require high roundness tolerances, a simple adjustment device is needed for roundness adjustment during welding. However, existing roundness adjustment devices have complex manufacturing processes and are inflexible in operation, affecting the production efficiency and accuracy of cylindrical valve welding and assembly. Utility Model Content

[0003] To solve or partially solve the problems existing in the related technologies, this application provides a valve assembly welding adjustment bracket, which can improve the production efficiency and production accuracy of valve assembly welding and installation, and generate good social and economic benefits.

[0004] This application provides a cylindrical valve assembly welding adjustment bracket, including a support base 1, a main beam 3, a support plate 5, and a high-strength top cone bolt 6; the support base 1 is provided with a rotating groove 2, the middle part of the main beam 3 is rotatably mounted on the rotating groove 2, the two ends of the main beam 3 are symmetrically mounted with support plates 5, the support plates 5 are provided with threaded holes, and the high-strength top cone bolt 6 is threadedly installed through the threaded holes, and the length of the main beam 3 is designed according to the diameter of the cylindrical valve.

[0005] Optionally, in some schemes, the main beam 3 is divided into an upper main beam and a lower main beam, and a skeleton beam 4 connects the upper main beam and the lower main beam. The lower main beam is rotatably mounted on the rotating slot 2, and the distance between the upper main beam and the lower main beam is designed according to the height of the cylindrical valve.

[0006] The technical solution provided in this application may include the following beneficial effects:

[0007] This application is made of ordinary steel plates and channel steel, which are easy to obtain, simple in structure, and convenient to assemble and disassemble, which can shorten the manufacturing cycle and reduce the manufacturing cost; the main body of the support beam and the support base are hoisted into the inside of the cylinder valve for assembly, and the support beam can be rotated to adjust according to the change in roundness, which greatly shortens the adjustment time;

[0008] The skeleton beam of this application adopts a triangular structure and is welded to the main beam, which not only ensures strength but also saves materials, and the hollow part will not affect the measurement.

[0009] The top cone bolt on the support plate of this application is adjusted to the required rotation length to achieve roundness. After the roundness meets the requirements, it is fixed and held for a period of time. Then, the top cone bolt is loosened and the roundness is re-measured until the roundness meets the requirements in the free state. At this time, the top cone bolt is slightly tightened against the inner wall of the valve before welding. The operation is convenient and the process is easy to control.

[0010] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0011] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0012] Figure 1 This is a schematic front view of the valve assembly welding and rounding bracket shown in an embodiment of this application;

[0013] Figure 2 This is a top view schematic diagram of the valve assembly welding and rounding bracket shown in the embodiments of this application;

[0014] Figure 3 This is a schematic diagram of the connection structure of the high-strength top cone bolt shown in the embodiments of this application.

[0015] Figure label:

[0016] 1-Support base, 2-Rotating slot, 3-Main beam, 4-Skeleton beam, 5-Support plate, 6-High-strength top cone bolt. Detailed Implementation

[0017] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0018] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0019] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0020] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] To address the aforementioned issues, this application provides a valve assembly welding adjustment bracket, which can improve the production efficiency and precision of valve assembly welding and installation, resulting in significant social and economic benefits.

[0022] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0023] See Figure 1-3 The valve assembly welding adjustment bracket includes a support base 1, a main beam 3, a support plate 5, and a high-strength top cone bolt 6. The support base 1 is provided with a rotating slot 2. The middle part of the main beam 3 is rotatably mounted on the rotating slot 2. The two ends of the main beam 3 are symmetrically mounted with support plates 5. The support plates 5 are provided with threaded holes, and the high-strength top cone bolt 6 is threaded through the threaded holes. The length of the main beam 3 is designed according to the diameter of the valve assembly.

[0024] In some embodiments, the main beam 3 is divided into an upper main beam and a lower main beam, and a skeleton beam 4 connects the upper main beam and the lower main beam. The lower main beam is rotatably mounted on the rotating slot 2, and the distance between the upper main beam and the lower main beam is designed according to the height of the cylindrical valve.

[0025] The valve assembly's rounding bracket is constructed from channel steel and steel plates. The support base 1 is a triangular bracket welded from channel steel, with a steel plate welded to the top. A rotating groove 2 is welded onto the steel plate, and a tightening screw is located on one side of the rotating groove 2. The support beam is constructed from two main channel steel beams (upper and lower) and several smaller channel steel beams (reinforcing beams). The length and spacing of the main beams 3 are determined based on the actual diameter and height of the valve assembly. The reinforcing beams are welded to the main beams using a triangular structure, which not only ensures strength but also saves materials. Furthermore, the openwork design does not affect measurement. The support plate 5 is made of δ=32mm steel plate and is welded to both sides of the main channel steel beam 3, one on the top and one on the bottom. Each plate has two rows of two M36 threaded holes, each hole fitted with an M36×600 8.8 grade high-strength top-taper bolt 6 plus one nut; a total of 16 bolts and 16 nuts are required.

[0026] During fabrication, the pre-assembled adjustment tools are disassembled. First, a bridge crane is used to hoist the support base 1 to the valve assembly welding station and place it at the center of the valve. Then, the main beam 3 is hoisted onto the support base 1 for adjustment and fixation. Based on the measured inner roundness of the valve, the main beam 3 is rotated to a position where the roundness is too small. The high-strength top cone bolt 6 on the support 5 is then rotated from the inside out, and the roundness is appropriately expanded according to the degree of roundness deviation. During the expansion process, an inside micrometer or dial indicator is used for monitoring. Once the roundness meets the standard, the process is stopped and maintained for a period of time. During this period, the valve body is tapped appropriately to release stress. Then, the high-strength top cone bolt 6 is loosened, and the roundness is re-measured. This operation is repeated until the valve body roundness meets the requirements in a free state. During welding, real-time monitoring is conducted. If the roundness changes too rapidly, the adjustment tools are readjusted as needed to ensure the roundness meets the standard after welding.

[0027] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely 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 "include," "contain," or any other variations 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 a process, method, article, or apparatus.

[0028] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0029] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A valve assembly welding adjustment bracket, characterized in that: The valve assembly welding adjustment bracket includes a support base (1), a main beam (3), a support plate (5), and a high-strength top cone bolt (6). The support base (1) is provided with a rotating slot (2), the middle part of the main beam (3) is rotatably installed on the rotating slot (2), and the two ends of the main beam (3) are symmetrically installed with support plates (5). The support plates (5) are provided with threaded holes, and the high-strength top cone bolt (6) is installed through the threaded holes. The length of the main beam (3) is designed according to the diameter of the valve assembly.

2. The valve assembly welding adjustment bracket according to claim 1, characterized in that: The main beam (3) is divided into an upper main beam and a lower main beam. A skeleton beam (4) connects the upper main beam and the lower main beam. The lower main beam is rotatably mounted on the rotating slot (2). The distance between the upper main beam and the lower main beam is designed according to the height of the cylindrical valve.

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