A large cylinder segment structure butt joint surface sealing ring pressure limiting device

Abstract

The utility model relates to large -scale cylinder section structure butt joint assembly technical field especially discloses a kind of large -scale cylinder section structure butt joint face sealing ring pressure limiting device, including bearing structure, U-shaped pressing plate and simple handle, sealing ring pressure limiting device is inserted into the recessed square inside cylinder section structure butt joint face, while U-shaped pressing plate carries out pressure to sealing ring, after cylinder section structure butt joint face butt joint, connect butt joint nut, sealing ring pressure limiting device is extracted from butt joint face again, finally complete butt joint work, large -scale cylinder section structure can be uniformly increased multiple devices, solve large -scale cylinder section structure butt joint face sealing ring in butt joint process, be influenced by vibration and sway etc. Disturbance factor, it can slide out sealing groove problem, while effectively prevent sealing ring after butt joint crush, break etc. Quality problem occurs, and the amount of used grease used for bonding sealing ring can be reduced, avoid the problem that grease oil liquid separates and precipitates caused by long-term storage, ensure that large -scale cylinder section structure product quality reliability.

Description

Technical Field

[0001] This utility model relates to the field of large cylindrical section structure docking and assembly technology, and in particular to a pressure limiting device for the sealing ring of a large cylindrical section structure docking surface. Background Technology

[0002] In launch vehicle assembly, the docking of cylindrical sections is a critical step. Typically, docking is performed horizontally. One section's docking surface has multiple sets of double-ended bolts evenly distributed throughout, while the other section's docking surface has a corresponding number of mounting holes, with concave square holes on the outer side of these holes to facilitate the insertion of the double-ended bolts and connection of the docking nuts. To improve the waterproofing performance after docking, a sealing groove is machined around the docking surface. Before the actual docking, grease is applied to the surface of the sealing ring and inside the sealing groove to enhance sealing performance and ensure adhesion, preventing accidental detachment during the docking process.

[0003] However, during the docking process of large cylindrical structures, the adhesive properties of the grease used to bond the sealing rings are relatively low. When the cylindrical structure is affected by disturbances such as vibration and shaking, the sealing rings may slip out of the sealing groove, or even cause quality problems such as crushing or breaking of the sealing rings. In addition, the amount of grease used to bond the sealing rings is large, and long-term storage can easily lead to the separation and precipitation of grease and oil. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pressure limiting device for the sealing ring at the joint surface of a large cylindrical structure. This device solves the technical problems that arise during the jointing process of large cylindrical structures, the sealing ring slips out of the sealing groove due to the low adhesive performance of the grease used to bond the sealing ring. This can even lead to damage or breakage of the sealing ring when the cylindrical structure is subjected to vibration and shaking. Furthermore, the large amount of grease used to bond the sealing ring can easily cause oil separation and precipitation during long-term storage.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pressure limiting device for the sealing ring at the docking surface of a large cylindrical section structure includes a load-bearing structure, a U-shaped pressure plate, and a simple handle. The shape of the load-bearing structure is adapted to the concave square hole on the outer side of the docking surface of the large cylindrical section structure, and is used to embed into the concave square hole to form a load-bearing foundation. The U-shaped pressure plate is bolted to the side of the load-bearing structure facing the sealing ring. The pressure plate surface of the U-shaped pressure plate is in contact with the surface of the sealing ring. During docking, continuous and uniform pressure is applied to the sealing ring to limit the radial and axial displacement of the sealing ring and prevent it from slipping out of the sealing groove. The simple handle is bolted to the outer side of the load-bearing structure and is used to operate the insertion and withdrawal of the device. Two horizontal adjusting screws are threaded to the top of the load-bearing structure to adjust the overall level of the device. The two horizontal adjusting screws are symmetrically arranged on the top of the load-bearing structure. Three gap adjusting screws are threaded to both sides of the load-bearing structure, one on one side and two on the other side.

[0007] Preferably, both the leveling screw and the clearance adjusting screw are made of internal hexagonal head screws, and the surface is treated with galvanizing or chrome plating for rust prevention, which improves service life and adapts to the working environment of the assembly site.

[0008] Preferably, the top of the load-bearing structure, corresponding to the positions of the two horizontal adjusting screws, and the sides, corresponding to the positions of the three gap adjusting screws, are all provided with assembly internal thread holes that are compatible with the external threads of the screws.

[0009] Preferably, the load-bearing structure, the U-shaped pressure plate, and the simple handle are provided with mounting holes for connecting bolts, and the load-bearing structure is located between the U-shaped pressure plate and the simple handle.

[0010] Preferably, multiple devices can be evenly distributed around the circumference of the mating surface of the large cylindrical section structure to achieve comprehensive positioning of the sealing ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] Insert the sealing ring pressure limiting device into the concave square block of the cylinder section structure mating surface, and at the same time, apply pressure to the sealing ring with the U-shaped pressure plate. After the cylinder section structure mating surfaces are connected, manually connect the mating nut, and then slowly pull the sealing ring pressure limiting device out of the mating surface to complete the mating work. Multiple devices can be evenly distributed to large cylinder section structures to avoid quality problems such as crushing and breaking caused by the sealing ring falling off during the mating process of large cylinder section structures.

[0013] This invention addresses the issue of sealing rings slipping out of the sealing groove during the mating process of large cylindrical structures due to vibration and shaking. It also effectively prevents quality problems such as crushing or breaking of the sealing rings after mating, reduces the amount of adhesive used to bond the sealing rings, and avoids the problem of oil separation caused by long-term storage, thus ensuring the reliability of large cylindrical structure products. Attached Figure Description

[0014] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This utility model Figure 1 Structural diagram of a medium-load-bearing structure;

[0017] Figure 3 This utility model Figure 1 Structural diagram of the clearance adjusting screw;

[0018] Figure 4 This utility model Figure 1 Exploded structural diagram of a medium-load-bearing structure.

[0019] Illustration: 1. Load-bearing structure; 2. U-shaped pressure plate; 3. Simple handle; 4. Horizontal adjustment screw; 5. Gap adjustment screw; 6. Assembly internal thread hole; 7. Assembly hole. Detailed Implementation

[0020] This application provides a pressure limiting device for the sealing ring at the joint surface of a large cylindrical structure. This effectively solves the technical problems that occur during the jointing process of large cylindrical structures. Due to the low adhesive performance of the grease used to bond the sealing ring, the sealing ring will slip out of the sealing groove after being affected by vibration and shaking, and may even cause the sealing ring to be crushed or broken. Furthermore, the large amount of grease used to bond the sealing ring can easily lead to the separation and precipitation of the grease over long-term storage.

[0021] Example

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the technical problems in the process of connecting large cylindrical structures. Due to the low adhesive performance of the grease used to bond the sealing ring, the sealing ring will slip out of the sealing groove after being subjected to vibration and shaking, potentially even causing damage or breakage. Furthermore, the large amount of grease used for bonding the sealing ring can easily lead to oil separation and precipitation during long-term storage. The overall approach is as follows:

[0023] To address the problems existing in the prior art, this utility model provides a pressure limiting device for the sealing ring of a large cylindrical section structure mating surface, including a load-bearing structure 1, a U-shaped pressure plate 2, and a simple handle 3.

[0024] The load-bearing structure 1 is the core load-bearing component of the device. Its shape is designed according to the size of the concave square hole on the outer side of the docking surface of the large cylindrical structure, ensuring that it can be tightly embedded in the concave square hole. By using the concave square hole as the natural load-bearing structure 1, no additional processing of the cylindrical structure is required, thus reducing the cost of use.

[0025] The U-shaped pressure plate 2 is bolted to the side of the load-bearing structure 1 facing the sealing ring. The pressure plate surface of the U-shaped pressure plate 2 is in contact with the surface of the sealing ring. During the docking process, continuous and uniform pressure is applied to the sealing ring to limit the radial and axial displacement of the sealing ring and prevent it from slipping out of the sealing groove.

[0026] The simple handle 3 is bolted to the outside of the load-bearing structure 1. It is made of lightweight material and has an easy-to-grip design, making it convenient for operators to insert the device into or pull it out of the concave square hole, thus improving the ease of operation.

[0027] The top threaded connection of the load-bearing structure 1 has two leveling screws 4 for adjusting the overall level of the device. By screwing them in or out, the overall level of the device can be adjusted to ensure that the U-shaped pressure plate 2 fits evenly with the sealing ring.

[0028] Two horizontal adjusting screws 4 are symmetrically arranged on the top of the load-bearing structure 1, and three gap adjusting screws 5 are threaded to both sides of the load-bearing structure 1, one on one side and two on the other side, to fill the gap between the load-bearing structure 1 and the inner wall of the concave square hole, ensuring that the load-bearing structure 1 and the inner wall of the concave square hole fit tightly, the load is evenly distributed, and the device is prevented from shaking during docking.

[0029] Both the leveling screw 4 and the clearance adjusting screw 5 are internal hexagonal head screws with galvanized or chrome-plated surfaces for rust prevention, which improves service life and adapts to the working environment of the assembly site.

[0030] The top of the load-bearing structure 1, corresponding to the positions of the two horizontal adjusting screws 4, and the sides, corresponding to the positions of the three gap adjusting screws 5, are all provided with assembly internal thread holes 6 that are adapted to the external threads of the screws.

[0031] The load-bearing structure 1, the U-shaped pressure plate 2, and the simple handle 3 are provided with assembly holes 7 for inserting connecting bolts.

[0032] The load-bearing structure 1 is located between the U-shaped pressure plate 2 and the simple handle 3.

[0033] Multiple devices can be evenly distributed around the circumference of the docking surface of a large cylindrical structure to achieve comprehensive positioning of the sealing ring. During the docking process, pressure is continuously applied to the sealing ring to limit its displacement and prevent it from sliding out of the sealing groove due to vibration or shaking.

[0034] Working principle:

[0035] Install a sealing ring in the sealing groove of the joint surface of the large cylindrical structure, and apply a small amount of grease to the surface of the sealing ring and the sealing groove. Embed the load-bearing structure 1 into the concave square hole on the outside of the joint surface of the cylindrical structure. Adjust the level by turning the level adjustment screw 4 to calibrate the overall level of the device, ensuring that the pressure plate surface of the U-shaped pressure plate 2 is parallel to the surface of the sealing ring. Then turn the gap adjustment screw 5 to fill the gap between the load-bearing structure 1 and the inner wall of the concave square hole, so that the load-bearing structure 1 and the concave square hole fit tightly together, ensuring uniform load bearing. The pressure plate surface of the U-shaped pressure plate 2 fits against the surface of the sealing ring, and continuously applies pressure to the sealing ring during the docking process to limit the displacement of the sealing ring and prevent it from sliding out of the sealing groove due to vibration and shaking.

[0036] After the two cylindrical sections are properly connected, the connecting nuts are manually connected, and then the sealing ring pressure limiting device is slowly pulled out from the connecting surface to complete the connection. Multiple devices can be evenly distributed on large cylindrical sections to avoid quality problems such as crushing or breaking caused by the sealing ring falling off during the connection process.

[0037] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A pressure-limiting device for the sealing ring at the mating surface of a large cylindrical section structure, characterized in that, Includes a load-bearing structure (1), a U-shaped pressure plate (2), and a simple handle (3). The shape of the load-bearing structure (1) is adapted to the concave square hole on the outside of the docking surface of the large cylindrical section structure, and is used to be embedded in the concave square hole to form a load-bearing foundation. The U-shaped pressure plate (2) is bolted to the side of the load-bearing structure (1) facing the sealing ring. The pressure plate surface of the U-shaped pressure plate (2) is in contact with the surface of the sealing ring. The simple handle (3) is bolted to the outside of the load-bearing structure (1) and is used to insert and remove the operating device. Among them, the top of the load-bearing structure (1) is threaded with two horizontal adjustment screws (4) for adjusting the overall horizontal state of the device. The two horizontal adjustment screws (4) are symmetrically arranged on the top of the load-bearing structure (1). Three gap adjustment screws (5) are threaded on both sides of the load-bearing structure (1), one on one side and two on the other side.

2. The pressure-limiting device for the sealing ring at the joint surface of a large cylindrical section structure as described in claim 1, characterized in that, The leveling screw (4) and the gap adjusting screw (5) are both internal hexagonal head screws.

3. The pressure-limiting device for the sealing ring at the joint surface of a large cylindrical section structure as described in claim 1, characterized in that, The top of the load-bearing structure (1) is provided with two horizontal adjusting screws (4) and the sides are provided with three gap adjusting screws (5) with an assembly internal thread hole (6) that matches the external thread of the screw.

4. The pressure-limiting device for the sealing ring at the joint surface of a large cylindrical section structure as described in claim 1, characterized in that, The load-bearing structure (1), the U-shaped pressure plate (2), and the simple handle (3) are provided with assembly holes (7) for inserting connecting bolts.

5. The pressure-limiting device for the sealing ring at the joint surface of a large cylindrical section structure as described in claim 1, characterized in that, The load-bearing structure (1) is located between the U-shaped pressure plate (2) and the simple handle (3).

6. The pressure-limiting device for the sealing ring at the joint surface of a large cylindrical section structure as described in claim 1, characterized in that, Multiple devices can be evenly distributed around the circumference of the docking surface of a large cylindrical structure.

Images