Chemical pressure vessel welding equipment

Abstract

The utility model discloses chemical pressure vessel welding equipment, which relates to the technical field of welding and comprises an equipment shell, an oil cylinder fixedly mounted on one side of the equipment shell, a rotating chuck at the output tail end of the oil cylinder, a protective shell fixedly mounted on one side of the equipment shell, and a welding mechanism arranged on the protective shell. The welding mechanism comprises a driving lead screw rotationally installed on the edge of the upper end of the equipment shell and a movable shaft rotationally installed on one side of the equipment shell, a lead screw sliding block is arranged on the driving lead screw, an electric push rod is fixedly installed at the bottom of the lead screw sliding block, a welding gun is fixedly installed at the output tail end of the electric push rod, and a chuck is fixedly installed at the tail end of the movable shaft. A detection mechanism is arranged on the chuck, the welding mechanism further comprises a motor fixedly installed on one side of the protective shell, and the output tail end of the motor is fixedly installed on the driving lead screw. According to the pressure vessel welding equipment for the chemical industry, through cooperative use of the welding mechanism and the detection mechanism, the air tightness after welding can be detected, and the product quality is kept.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically a welding equipment for chemical pressure vessels. Background Technology

[0002] A pressure vessel is a sealed container capable of withstanding pressure, typically constructed from multiple welded metal sections. It plays a vital role in many sectors, including industry, civilian use, military applications, and scientific research. Its most common applications are in the chemical and petrochemical industries.

[0003] In the prior art, the patent announcement number CN221019346U discloses a pressure vessel welding equipment, including a workbench, a shell fixedly connected to the top of the workbench, a lead screw rotatably connected to the upper part of the shell, a welding head threadedly connected to the outside of the lead screw, a sliding groove opened on the top of the shell, the welding head slidingly connected to the sliding groove, and a motor fixedly connected to the outer side of the shell.

[0004] The aforementioned device can weld pressure vessels. However, after the welding process is completed, it cannot be guaranteed that the airtightness of the welded area meets the expected standards. If airtightness problems are found during inspection, this will lead to a series of subsequent problems. First, the pressure vessel must be moved back to the welding device for necessary repair welding. This process is not only time-consuming and resource-intensive but also adversely affects the overall processing schedule. Therefore, a welding device for chemical pressure vessels is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a welding equipment for chemical pressure vessels to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a welding equipment for chemical pressure vessels, comprising an equipment shell, a hydraulic cylinder fixedly installed on one side of the equipment shell, a chuck rotating at the output end of the hydraulic cylinder, a protective shell fixedly installed on one side of the equipment shell, a welding mechanism provided on the protective shell, the welding mechanism comprising a drive screw rotatably installed at the upper edge of the equipment shell and a movable shaft rotatably installed on one side of the equipment shell, a screw slider provided on the drive screw, an electric push rod fixedly installed at the bottom of the screw slider, a welding torch fixedly installed at the output end of the electric push rod, a chuck fixedly installed at the end of the movable shaft, and a detection mechanism provided on the chuck.

[0007] Preferably, the welding mechanism further includes a motor fixedly installed on one side of the protective housing, and the output end of the motor is fixedly installed on the drive screw. A transmission shaft is rotatably installed between the drive screw and the movable shaft. Both the transmission shaft and the drive screw are equipped with clutches. Helical gears are provided on the transmission shaft, the movable shaft, and the drive screw, and the helical gears mesh together in pairs.

[0008] Preferably, the protective housing is provided with a retainer, and the drive shaft is rotatably mounted inside the equipment housing via the retainer.

[0009] Preferably, the lead screw slider has a threaded hole, and the lead screw slider is mounted on the drive lead screw through the threaded hole.

[0010] Preferably, the detection mechanism includes a positioning support fixedly installed on the chuck, a blocking block fixedly installed on the positioning support, an airbag ring fixedly installed at the edge of the blocking block, a first inflation tube connected to the airbag ring, a second inflation tube fixedly installed on the blocking block, a one-way valve provided in the second inflation tube, and a pressure sensor installed on the blocking block.

[0011] Preferably, the block has a mounting hole, and the pressure sensor is mounted on the block through the mounting hole.

[0012] Preferably, the blocking block is fixedly installed on the chuck by a positioning support, and an installation groove is provided at the edge of the blocking block, through which the airbag ring is installed at the edge of the blocking block.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this application, a motor drives a lead screw to rotate, which in turn moves the welding torch on the lead screw slider to the joint of the two pressure vessel sections to perform welding operations on the pressure vessels. Simultaneously, the motor can also drive a transmission shaft to rotate, which in turn causes a chuck on a movable shaft to rotate, thereby causing the two mating pressure vessels to rotate synchronously, facilitating thorough welding of the joint between the two vessels.

[0015] 2. After the welding operation is completed in this application, gas is injected into the airbag ring through the first inflation pipe, causing the airbag ring to expand. After the airbag ring expands, it effectively seals the gap between the container section and the plug, thereby achieving the sealing of both ends of the container section. After sealing both ends of the container section, gas is injected into the container section through the second inflation pipe to increase and maintain the internal air pressure of the container section. Subsequently, a pressure sensor is used to detect the internal air pressure of the container section. If the detection result shows that the air pressure inside the container section has not decreased, it indicates that the airtightness of the container section meets the standard, ensuring product quality and reducing the occurrence of repair welding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the welding mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the testing mechanism of this utility model.

[0020] Numbered in the diagram: 1. Equipment casing; 2. Hydraulic cylinder; 3. Chuck; 4. Protective casing; 5. Welding mechanism; 501. Motor; 502. Helical gear; 503. Clutch; 504. Lead screw and slider; 505. Electric push rod; 506. Welding torch; 507. Drive shaft; 508. Movable shaft; 509. Drive lead screw; 6. Detection mechanism; 601. Airbag ring; 602. Block; 603. Air pressure sensor; 604. First inflation pipe; 605. Positioning support; 606. One-way valve; 607. Second inflation pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for welding equipment for chemical pressure vessels, including an equipment shell 1, a hydraulic cylinder 2 fixedly installed on one side of the equipment shell 1, a chuck 3 rotating at the output end of the hydraulic cylinder 2, a protective shell 4 fixedly installed on one side of the equipment shell 1, a welding mechanism 5 provided on the protective shell 4, and a detection mechanism 6 provided on the chuck 3. Through the cooperation of the welding mechanism 5 and the detection mechanism 6, the airtightness after welding can be detected to maintain product quality.

[0023] like Figure 2 and Figure 3As shown, the welding mechanism 5 includes a drive screw 509 rotatably mounted on the upper edge of the equipment housing 1 and a movable shaft 508 rotatably mounted on one side of the equipment housing 1. The drive screw 509 is provided with a screw slider 504. An electric push rod 505 is fixedly mounted on the bottom of the screw slider 504. A welding torch 506 is fixedly mounted on the output end of the electric push rod 505. A chuck 3 is fixedly mounted on the end of the movable shaft 508. The welding mechanism 5 also includes a motor 501 fixedly mounted on one side of the protective housing 4, and the output end of the motor 501 is fixedly mounted on the drive screw 509. A transmission shaft 507 is rotatably mounted between the drive screw 509 and the movable shaft 508. Both the transmission shaft 507 and the drive screw 509 are provided with clutches 503. Helical gears 502 are provided on the transmission shaft 507, the movable shaft 508, and the drive screw 509, and the helical gears 502 mesh together in pairs. A retainer is provided inside the protective housing 4, and the transmission shaft 507 is rotatably mounted inside the equipment housing 1 through the retainer.

[0024] Specifically, the driving force of the motor 501 enables the rotation of the lead screw 509. When the lead screw 509 begins to rotate, it further causes the welding torch 506 on the lead screw slider 504 to move along a predetermined path until it reaches the joint between the two pressure vessels. This process greatly facilitates the precise welding of the two pressure vessels. Simultaneously, the rotational power of the motor 501 can also be transmitted to the drive shaft 507, causing it to rotate as well. The rotation of the drive shaft 507 drives the movable shaft 508 and the chuck 3 mounted on it to rotate together. The rotation of the chuck 3 further causes the two pressure vessels, which have already been joined together, to begin rotating synchronously. This synchronous rotation ensures that the joint between the two pressure vessels can be completely and uniformly welded together, thereby improving welding quality and efficiency.

[0025] like Figure 2 and Figure 4 As shown, the detection mechanism 6 includes a positioning support 605 fixedly installed on the chuck 3. A block 602 is fixedly installed on the positioning support 605. An airbag ring 601 is fixedly installed at the edge of the block 602. A first inflation tube 604 is connected to the airbag ring 601. A second inflation tube 607 is fixedly installed on the block 602. A one-way valve 606 is provided inside the second inflation tube 607. A pressure sensor 603 is installed on the block 602. An installation hole is opened on the block 602. The pressure sensor 603 is installed on the block 602 through the installation hole.

[0026] Specifically, after the welding process is completed, air is injected into the airbag ring 601 through the first inflation pipe 604. This operation causes the airbag ring 601 to expand, effectively sealing all gaps between the container section and the blocking block 602 once fully expanded. This completely seals both ends of the container section. After sealing, air is then injected again into the container section through the second inflation pipe 607 to increase the internal air pressure and maintain this pressure for a period of time. After maintaining this pressure for a period, the air pressure sensor 603 detects the internal air pressure of the container section. If the detection results show no significant drop in air pressure within the container section, it indicates that the airtightness of the container section is good, thus ensuring product quality.

[0027] Working principle: During use, the chuck 3 is used to fix the two pressure vessel sections. After the two pressure vessel sections are fixed, the hydraulic cylinder 2 can be activated to connect the two pressure vessel sections together. Then, the motor 501 drives the drive screw 509 to rotate. After the drive screw 509 rotates, it moves the welding gun 506 on the screw slider 504 to the joint of the two pressure vessel sections, facilitating welding. The motor 501 also drives the transmission shaft 507 to rotate. After the transmission shaft 507 rotates, it drives the chuck 3 on the movable shaft 508 to rotate. After the chuck 3 rotates, it causes the two connected pressure vessels to rotate, facilitating the complete welding of the joint between the two pressure vessels. After welding is completed, air can be injected into the container section through the first air inflator 604, causing the airbag ring 601 to expand. After the airbag ring 601 expands, it will block the gap between the container section and the blocking block 602, thereby blocking both ends of the container section. After blocking both ends of the container section, air can be injected into the container section through the second air inflator 607, increasing the internal air pressure of the container section and maintaining it for a period of time. Then, the air pressure sensor 603 detects the internal air pressure of the container section. If the air pressure inside the container section does not decrease, it indicates that the container section has good airtightness.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A chemical pressure vessel welding equipment, comprising an equipment shell (1), a hydraulic cylinder (2) fixedly installed on one side of the equipment shell (1), a chuck (3) rotating at the output end of the hydraulic cylinder (2), and a protective shell (4) fixedly installed on one side of the equipment shell (1), characterized in that: The protective housing (4) is provided with a welding mechanism (5). The welding mechanism (5) includes a drive screw (509) rotatably mounted on the upper edge of the equipment housing (1) and a movable shaft (508) rotatably mounted on one side of the equipment housing (1). The drive screw (509) is provided with a screw slider (504). An electric push rod (505) is fixedly mounted at the bottom of the screw slider (504). A welding torch (506) is fixedly mounted at the output end of the electric push rod (505). A chuck (3) is fixedly mounted at the end of the movable shaft (508). A detection mechanism (6) is provided on the chuck (3).

2. The chemical pressure vessel welding equipment according to claim 1, characterized in that: The welding mechanism (5) also includes a motor (501) fixedly installed on one side of the protective shell (4), and the output end of the motor (501) is fixedly installed on the drive screw (509). A transmission shaft (507) is rotatably installed between the drive screw (509) and the movable shaft (508). Both the transmission shaft (507) and the drive screw (509) are provided with clutches (503). Helical gears (502) are provided on the transmission shaft (507), the movable shaft (508) and the drive screw (509), and the helical gears (502) mesh together in pairs.

3. The chemical pressure vessel welding equipment according to claim 2, characterized in that: The protective housing (4) is provided with a retainer, and the drive shaft (507) is rotatably mounted in the equipment housing (1) through the retainer.

4. The chemical pressure vessel welding equipment according to claim 3, characterized in that: The lead screw slider (504) has a threaded hole, and the lead screw slider (504) is installed on the drive lead screw (509) through the threaded hole.

5. The chemical pressure vessel welding equipment according to claim 4, characterized in that: The detection mechanism (6) includes a positioning support (605) fixedly installed on the chuck (3), a block (602) fixedly installed on the positioning support (605), an airbag ring (601) fixedly installed at the edge of the block (602), a first inflation tube (604) connected to the airbag ring (601), a second inflation tube (607) fixedly installed on the block (602), a one-way valve (606) provided in the second inflation tube (607), and a pressure sensor (603) installed on the block (602).

6. The chemical pressure vessel welding equipment according to claim 5, characterized in that: The block (602) has an installation hole, and the pressure sensor (603) is installed on the block (602) through the installation hole.

7. The chemical pressure vessel welding equipment according to claim 6, characterized in that: The block (602) is fixedly installed on the chuck (3) by the positioning support (605). An installation groove is provided at the edge of the block (602), and the airbag ring (601) is installed at the edge of the block (602) through the installation groove.

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