A large-scale vulcanization tooling and operation method inside a fairing

Abstract

The present invention discloses a large-scale vulcanization tooling and operation method inside a fairing, which relates to the field of watertight maintenance. It includes a vulcanization mold, a metal hoop, a jack assembly, and a support assembly. Metal hoops and heating rods are evenly distributed along the circumference of the bottom of the vulcanization mold. The metal hoops are used to apply radial pressure to the vulcanization mold, and the heating rods are used to heat the vulcanization mold. The support assembly supports the outer periphery of the substrate to be processed. One end of the jack assembly is placed on the support assembly, and the other end of the jack assembly abuts against the bottom of the vulcanization mold to apply axial pressure to the vulcanization mold. The beneficial effects of the present invention are as follows: The split-type vulcanization mold design enables the large-scale mold to enter the fairing through the manhole; the use of a jack and a metal hoop for pressurization meets the process requirements for pressurization during the vulcanization process; the use of a heating rod for heating meets the process requirements for heating during the vulcanization process.

Description

Technical Field

[0001] The present invention relates to the field of watertight maintenance, and particularly to a large-scale vulcanization tooling and operation method inside a fairing. Background Art

[0002] At present, due to the aging of the seal between the installation flange of the large-scale array inside some old warships and the hull of the warship, the seal fails, resulting in water leakage inside the fairing into the upper cabin. The most fundamental solution to restore the watertightness between the flange and the ship hull is to remove the array and the flange plate, replace the seal, and then reinstall them. Due to the numerous pipelines in the upper cabin and the serious corrosion of the flange connection nuts, etc., the fairing cannot be opened. In this case, the implementation of this solution is difficult and even impossible to operate.

[0003] Considering the case of not disassembling and assembling the array, a layer of rubber is vulcanized at the joint between the flange and the ship hull for watertightness. Due to the limited space inside the fairing and the poor construction environment, and the relatively large scale of the joint between the array flange and the ship hull, generally with a perimeter between 2 and 3 meters, it is impossible to use professional vulcanization equipment for heating and pressurizing vulcanization operations. Therefore, it is necessary to design a special tooling to assist the construction.

[0004] For the components with relatively small on-site dimensions inside the fairing, a small vulcanizer is generally used for vulcanization operations. However, large-sized components such as the large-scale array flange inside the fairing cannot be vulcanized with a small vulcanizer. Only manual wrapping of raw rubber and heating with tools such as an electric soldering iron are used for simple vulcanization.

[0005] Generally speaking, the available vulcanizers on-site are restricted by the manhole and are often small in size, thus limiting the size of the workpieces that can be repaired. The scale of the joint between the large-scale array flange and the ship hull is relatively large, generally with a perimeter between 2 and 3 meters. On the one hand, the large-scale standard vulcanizer is too large to pass through the manhole, and on the other hand, it is only suitable for flat plate pressurized vulcanization and cannot pressurize the joint. And for simple heating, there are easily defects such as insufficient rubber density and air holes, affecting the watertight reliability. If the seal is replaced, the fairing needs to be disassembled and the large-scale array reinstalled, which is costly, time-consuming, and has a high construction risk. Summary of the Invention

[0006] The purpose of the present invention is to overcome the deficiencies existing in the prior art, and provide a large-scale vulcanization tooling inside a fairing, which has the advantages of simple structure, convenient use, safety and reliability.

[0007] The object of the present invention is achieved by the following technical solutions: This large-scale vulcanization tooling inside the fairing includes a vulcanization mold, a metal hoop, a jack assembly, and a support assembly. Metal hoops and heating rods are evenly distributed along the circumference of the bottom of the vulcanization mold. The metal hoops are used to apply radial pressure to the vulcanization mold, and the heating rods are used to heat the vulcanization mold. The support assembly supports the outer periphery of the substrate to be processed. One end of the jack assembly is placed on the support assembly, and the other end of the jack assembly abuts against the bottom of the vulcanization mold to apply axial pressure to the vulcanization mold.

[0008] As a further technical solution, the vulcanization mold includes two straight-section vulcanization molds and two arc-section vulcanization molds. The two straight-section vulcanization molds are arranged in parallel. One end of each of them is detachably connected to an arc-section vulcanization mold, and the other end of each of them is detachably connected to the other arc-section vulcanization mold.

[0009] As a further technical solution, the support assembly includes a support plate, a mounting ring, and support rods. A plurality of support plates are evenly distributed along the circumference of the mounting ring. A plurality of support rods are grouped in pairs and correspond to the support plates one by one, and are evenly arranged around the outer periphery of the substrate to be processed. The lower end of each group of support rods is supported on the bottom rib plate of the fairing, and the upper end of each group of support rods is detachably installed on the corresponding support plate.

[0010] As a further technical solution, the jack assembly is composed of a plurality of jacks, and the number thereof corresponds to the support plates. The lower end of each jack is placed on a support plate, and the upper end of each jack abuts against the bottom of the vulcanization mold.

[0011] As a preferred technical solution, the load-bearing capacity of the jack is 1 - 10T, and the lifting height is 100 - 500mm.

[0012] As a preferred technical solution, the working voltage of the heating rod is 220V or 380V, and the power is 600W - 10kW.

[0013] A large-scale vulcanization operation method inside the fairing includes the following steps:

[0014] 1) Clean the joint between the outer flange of the substrate to be processed and the ship's hull, roughen the bonding surface, and clean it thoroughly.

[0015] 2) Cut the rubber strip, and then bond the softened rubber strip to the position of the joint between the flange and the ship's hull.

[0016] 3) Fix the support plate on the mounting ring, place the jack on the support plate, adjust the height of the support rod to protect the substrate from pressure; adjust the lifting height of the jack to axially support the vulcanization mold, and apply radial pressure to the vulcanization mold with the metal hoop.

[0017] 4) The heating rod is powered on to heat the vulcanization mold. When it is heated to an appropriate temperature, continue to adjust the lifting height of the jack and the metal hoop to apply axial and radial pressure to the vulcanization mold for mold closing. After the mold closing is completed, continuously observe the mold closing situation of the vulcanization mold with the flange and the ship's hull. If there is pressure drop, replenish the pressure in a timely manner;

[0018] 5) The heating rod continues to heat up. When the mold temperature rises to an appropriate temperature, start timing, continuously track the temperature of the vulcanization mold, and maintain pressure for a certain period within this temperature range to complete the vulcanization process.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1) The split-type vulcanization mold design enables large-scale molds to enter the fairing through the manhole;

[0021] 2) Using a jack and a metal hoop for pressure application to meet the process requirements for pressure application during the vulcanization process;

[0022] 3) Using a heating rod for pressure application to meet the process requirements for temperature increase during the vulcanization process. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the present invention.

[0024] Figure 2 It is a schematic structural diagram of the vulcanization mold.

[0025] Figure 3 It is a schematic structural diagram of the support assembly.

[0026] Description of the reference numerals: vulcanization mold 1, straight-section vulcanization mold 11, arc-section vulcanization mold 12, metal hoop 2, jack assembly 3, support assembly 4, support plate 41, mounting ring 42, support rod 43. Detailed Embodiment

[0027] The following will introduce the present invention in detail with reference to the drawings:

[0028] Embodiment: As shown in the attached Figure 1 figure, this large-scale vulcanization tooling inside the fairing includes a vulcanization mold 1, a metal hoop 2, a jack assembly 3, and a support assembly 4. Metal hoops 2 and heating rods are evenly distributed along the circumference of the bottom of the vulcanization mold 1. The metal hoop 2 is used to apply radial pressure to the vulcanization mold 1, and the heating rod is used to heat the vulcanization mold 1; the support assembly 4 supports the outer periphery of the array to be processed. One end of the jack assembly 3 is placed on the support assembly 4, and the other end of the jack assembly 3 abuts against the bottom of the vulcanization mold 1 to apply axial pressure to the vulcanization mold 1.

[0029] As Figure 2As shown in the figure, the vulcanization mold 1 includes two straight-section vulcanization molds 11 and two arc-section vulcanization molds 12; the two straight-section vulcanization molds 11 are arranged in parallel, and one end of each of them is detachably connected to an arc-section vulcanization mold 12, and the other end of each of them is detachably connected to the other arc-section vulcanization mold 12.

[0030] As Figure 3 As shown in the figure, the support assembly 4 includes a support plate 41, a mounting ring 42 and a support rod 43. A plurality of support plates 41 are evenly distributed along the circumference of the mounting ring 42; a plurality of support rods 43 are grouped in pairs and correspond to the support plates 41 one by one, and are evenly arranged around the outer circumference of the substrate to be processed. The lower end of each group of support rods 43 is supported on the bottom rib plate of the fairing, and the upper end of each group of support rods 43 is detachably mounted on a corresponding support plate 41. The jack assembly 3 is composed of a plurality of jacks, and the number thereof corresponds to the support plate 41. The lower end of each jack is placed on a support plate 41, and the upper end of each jack abuts against the bottom of the vulcanization mold 1.

[0031] Preferably, the load-bearing capacity of the jack is 1 to 10 T, and the lifting height is 100 to 500 mm. The working voltage of the heating rod is 220 V or 380 V, and the power is 600 W to 10 kW.

[0032] A large-scale vulcanization operation method for a fairing includes the following steps:

[0033] 1) Clean the joint between the outer flange of the substrate to be processed and the hull, roughen the bonding surface, and clean it up;

[0034] 2) Cut the rubber strip, and then bond the softened rubber strip to the position of the joint between the flange and the hull;

[0035] 3) Fix the support plate 41 on the mounting ring 42, place a jack on the support plate 41, and adjust the height of the support rod 41 to protect the substrate from pressure; adjust the lifting height of the jack to axially support the vulcanization mold 1, and apply a radial pressure to the vulcanization mold 1 with the metal hoop 2;

[0036] 4) Energize the heating rod to heat the vulcanization mold 1. When it is heated to an appropriate temperature, continue to adjust the lifting height of the jack and the metal hoop 2 to apply axial and radial pressure to the vulcanization mold 1 for mold closing; after the mold closing is completed, observe the mold closing situation of the vulcanization mold 1 with the flange and the hull at all times. If there is a pressure drop, make up the pressure in time;

[0037] 5) The heating rod continues to heat up. When the mold temperature rises to a suitable temperature, start timing, track the temperature of the vulcanization mold 1 at all times, and keep the pressure for a certain period of time within this temperature range to complete the vulcanization process.

[0038] The present invention adopts a split mold design, which can enter the fairing through the manhole to vulcanize large-scale workpieces. The jack, metal hoop and heating rod meet the vulcanization process requirements of heating and pressurization. The vulcanization effect can reach the level of professional vulcanization equipment. Moreover, the accessories are mature, easy to purchase, the construction cost is low, and the cycle is short. It can be widely used in vulcanization operations in various narrow spaces.

[0039] It can be understood that for those skilled in the art, equivalent replacement or change of the technical solution and inventive concept of the present invention should fall within the protection scope of the appended claims of the present invention.

Claims

1. A large-scale vulcanization tooling inside a fairing, characterized in that: It includes a vulcanization mold (1), a metal hoop (2), a jack assembly (3), and a support assembly (4). The metal hoop (2) and heating rods are evenly distributed along the circumference of the bottom of the vulcanization mold (1). The metal hoop (2) is used to apply radial pressure to the vulcanization mold (1), and the heating rods are used to heat the vulcanization mold (1). The support assembly (4) supports the outer periphery of the substrate to be processed. One end of the jack assembly (3) is placed on the support assembly (4), and the other end of the jack assembly (3) abuts against the bottom of the vulcanization mold (1) to apply axial pressure to the vulcanization mold (1). The vulcanization mold (1) includes two straight-section vulcanization molds (11) and two arc-section vulcanization molds (12). The two straight-section vulcanization molds (11) are arranged in parallel. One end of each of them is detachably connected to an arc-section vulcanization mold (12), and the other end of each of them is detachably connected to the other arc-section vulcanization mold (12). The support assembly (4) includes a support plate (41), a mounting ring (42), and support rods (43). A number of support plates (41) are evenly distributed along the circumference of the mounting ring (42). A number of support rods (43) are grouped in pairs and correspond to the support plates (41) one by one, and are evenly arranged around the outer periphery of the substrate to be processed. The lower end of each group of support rods (43) supports on the bottom rib plate of the fairing, and the upper end of each group of support rods (43) is detachably installed on a corresponding support plate (41).

2. The large-scale vulcanization tooling inside the fairing according to claim 1, wherein: The jack assembly (3) is composed of a number of jacks, and the number thereof corresponds to the support plates (41). The lower end of each jack is placed on a support plate (41), and the upper end of each jack abuts against the bottom of the vulcanization mold (1).

3. The large-scale vulcanization tooling inside the fairing according to claim 2, characterized in that: The load-bearing capacity of the jack is 1 - 10T, and the lifting height is 100 - 500mm.

4. The large-scale vulcanization tooling inside the fairing according to claim 1, characterized in that: The working voltage of the heating rod is 220V or 380V, and the power is 600W - 10kW.

5. A large-scale vulcanization operation method inside a fairing, characterized in that: Adopt the large-scale vulcanization tooling inside the fairing as described in claim 1, including the following steps: 1) Clean the joint between the outer flange of the substrate to be processed and the ship hull, roughen the bonding surface, and clean it thoroughly. 2) Cut the rubber strip, and then bond the softened rubber strip to the position of the joint between the flange and the ship hull. 3) Fix the support plate (41) on the mounting ring (42), place a jack on the support plate (41), adjust the height of the support rod (43) to protect the substrate from pressure; adjust the lifting height of the jack to axially support the vulcanization mold (1) accordingly, and use the metal hoop (2) to apply radial pressure to the vulcanization mold (1). 4) Energize the heating rods to heat the vulcanization mold (1). When it is heated to an appropriate temperature, continue to adjust the lifting height of the jack and the metal hoop (2) to apply axial and radial pressure to the vulcanization mold (1) for mold closing; after the mold closing is completed, observe the mold closing situation of the vulcanization mold (1) with the flange and the ship hull at all times. If there is a pressure drop, make up the pressure in time. 5) The heating rods continue to heat up. When the mold temperature rises to a suitable temperature, start timing, track the temperature of the vulcanization mold (1) at all times, and maintain pressure for a certain period of time within this temperature range to complete the vulcanization process.

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