A shield segment pipeline gas shielded welding machine guide rail hanger mechanism

Abstract

The utility model discloses a kind of shield segment assembly line gas shield welding machine guide rail hanger mechanism, including support assembly, guide rail assembly and moving assembly;Support assembly contains support column and connecting steel plate, and can be set as adjustable height structure of outer column, inner column nested cooperation positioning piece, height is fixed by positioning piece and outer column and inner column are arranged;Guide rail assembly is I-beam guide rail, and can be set as splicable structure containing I-beam guide rail and splicing flange, and adjacent I-beam guide rail is connected by splicing flange bolt.The utility model realizes that gas shield welding machine is flexibly moved along guide rail, eliminates cable drag hidden danger, and different diameter segments can be adapted by height adjustment, different length workstations are adapted by guide rail splicing, improve welding operation safety, convenience and adaptability, and it is applicable to shield segment assembly line embedded part welding station.

Description

Technical Field

[0001] This utility model belongs to the technical field of shield tunnel segment prefabrication production equipment, specifically relating to a guide rail bracket mechanism for a shield tunnel segment assembly line gas shielded welding machine. Background Technology

[0002] In shield tunnel engineering, shield segments, as the core components of tunnel lining, need to be mass-produced through a prefabrication assembly line. At the installation station of the prefabricated embedded parts of the segments, the circumferential / longitudinal anti-stray current washer leg reinforcement, circumferential / longitudinal sleeve spiral reinforcement, and lifting arm spiral reinforcement are to be carbon dioxide gas shielded welded to the main reinforcement of the steel cage in accordance with stray current control design requirements to ensure that the steel cage meets the stray current protection standards.

[0003] In existing assembly line operations, gas shielded welding machines are usually placed directly on the steps on both sides of the assembly line. This placement method has the following significant drawbacks:

[0004] Inconvenience for personnel to walk: The welding machine occupies the step space, which means that the operators have to detour when moving around the production line, which affects the work efficiency and makes it easy to bump into each other;

[0005] Significant safety hazards: During the welding process, the welding torch cable needs to be dragged on the ground as the welding position changes, which can easily cause friction with debris and sharp parts on the ground, resulting in damage to the cable insulation layer and causing safety accidents such as leakage and short circuit.

[0006] Poor ease of operation: When the welding position changes, the welding machine needs to be moved manually, which not only increases the labor intensity of the operators, but also makes it easy to collide with the steel mold or embedded parts during the movement, affecting the quality of the prefabrication of the tunnel segments.

[0007] To solve the above problems, it is urgent to design a gas shielded welding machine suspension and movement mechanism that is compatible with the shield tunnel segment production line, so as to realize the flexible movement and safe storage of the welding machine. Summary of the Invention

[0008] The purpose of this utility model is to provide a guide rail bracket mechanism for a gas-shielded welding machine in a tunnel segment production line, so as to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a guide rail bracket mechanism for a shield tunnel segment assembly line gas shielded welding machine, comprising a support component, a guide rail component, and a moving component;

[0010] The support assembly includes at least two support columns and a connecting steel plate, wherein the connecting steel plate is used to fix the guide rail assembly;

[0011] The guide rail assembly is an I-beam guide rail, which is fixed to the support column by welding with connecting steel plates;

[0012] The moving component includes a pulley mechanism, a connecting chain, and a connecting angle steel; the pulley mechanism is slidably mounted on an I-beam guide rail; the gas shielded welding machine is detachably connected to the pulley mechanism via the connecting chain and the connecting angle steel; the pulley mechanism has a channel for the welding gun cable to pass through.

[0013] Preferably, the support component is an adjustable height support component, including an outer column, an inner column, and a positioning component. The inner column is nested inside the outer column, and the positioning component passes through the outer column and the inner column to achieve height fixation.

[0014] Preferably, the guide rail assembly is a splicable guide rail assembly, including at least two sections of I-beam guide rails and splicing flanges. The splicing flanges are fixed to both ends of the I-beam guide rails, and adjacent I-beam guide rails are connected by splicing flange bolts.

[0015] Preferably, the height of the supporting column is 3m, and the distance between two adjacent supporting columns is 1.77m.

[0016] Preferably, the I-beam guide rail is made of 10# I-beam, and there are 3 I-beam guide rails, with the length of each I-beam guide rail being 4.4m.

[0017] Preferably, the connecting angle steel is a No. 3 angle steel, one end of which is welded and fixed to the pulley mechanism, and the other end is connected to the gas shielded welding machine via a connecting chain.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] 1. Improved ease of operation: The gas shielded welding machine can move left and right synchronously with the welding torch extension through the pulley mechanism and the I-beam guide rail. There is no need to move the welding machine manually, which reduces the labor intensity of the operators. Moreover, the movement process is smooth and does not affect the welding accuracy.

[0020] 2. Optimized space utilization: The welding machine is suspended on the guide rail, which does not occupy the step space of the production line. Operators can walk normally without detours or bumps, thus improving the overall operation efficiency of the production line.

[0021] 3. Elimination of safety hazards: The welding torch cable passes through the channel of the pulley mechanism and moves synchronously with the welding machine, always remaining suspended in the air to avoid damage to the insulation layer caused by friction with the ground, thus eliminating safety risks such as leakage and short circuit.

[0022] 4. Strong structural stability: All components are connected by welding or bolts. The specifications and spacing of the supporting columns and I-beam guide rails have been calculated for load-bearing capacity, ensuring long-term stable operation. Moreover, the components are all made of conventional steel, resulting in low procurement and maintenance costs and easy mass promotion and application.

[0023] 5. Improved adaptability: The adjustable height (2.8-3.5m) is suitable for 6-12m diameter pipe segments, and the splicing guide rail (4.4m multiple extension) is suitable for workstations of different lengths, eliminating the need for repeated equipment customization and reducing costs. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 for Figure 1 Enlarged view of point A;

[0026] Figure 3 A schematic diagram of the supporting components;

[0027] Figure 4 This is a schematic diagram of the guide rail assembly.

[0028] In the diagram: Support component-1, guide rail component-2, moving component-3, support column-11, connecting steel plate-12, outer column-13, inner column-14, positioning component-15, I-beam guide rail-21, splicing flange-22, pulley mechanism-31, connecting chain-32, connecting angle steel-33. Detailed Implementation

[0029] 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.

[0030] like Figures 1-4 This invention illustrates a specific embodiment of a guide rail bracket mechanism for a gas-shielded welding machine in a tunnel segment production line: 12 includes a support assembly, a guide rail assembly, and a moving assembly. The specific structure and connection relationship of each assembly are as follows:

[0031] Support Components: Serving as the load-bearing foundation of the entire structure, these components include support columns 11 and connecting steel plates 12. The support columns 11 are made of rectangular square steel with a specification of 40801.5mm. This specification of square steel combines lightweight design with load-bearing capacity, meeting the requirements for welding machine suspension. The height of the support columns 11 is set at 3m to match the operating height of the tunnel segment production line (avoiding the welding machine being too low after suspension, affecting operation, or too high, causing excessive cable stretching). The spacing between adjacent support columns 11 is 1.77m to ensure the span stability of the guide rail assembly 2 and prevent the I-beam guide rail from sagging in the middle. The connecting steel plate is 1mm thick and is used to weld and fix the I-beam guide rail to the support columns. The weld surface is flat, which can improve the connection strength and prevent the guide rail from loosening.

[0032] Guide rail assembly: As the track for moving the welding machine, it uses 10# H-beams. The cross-sectional dimensions and load-bearing capacity of the 10# H-beams are suitable for the weight of the gas shielded welding machine (typically, a single gas shielded welding machine weighs about 30-50kg), and it is cost-effective. There are 3 H-beam guide rails 21, each with a length of 4.4m. The 3 H-beams are arranged along the length of the production line, covering the entire welding range of the embedded part installation station, and can meet the operation requirements without additional splicing.

[0033] The moving component enables the welding machine to move flexibly along the guide rail. It includes a pulley mechanism 31, a connecting chain 32, and a connecting angle steel 33. The pulley mechanism consists of a 1mm thick iron plate, rubber rollers, and M12 bolts. The 1mm iron plate serves as the pulley support, and its strength meets the installation requirements of the rollers. The rubber rollers have wear-resistant and cushioning properties, which can reduce friction noise with the I-beam guide rail 21 and prevent the metal rollers from scratching and damaging the guide rail. The M12 bolts serve as the roller's pivot, ensuring reliable connection and facilitating subsequent maintenance and replacement. The connecting angle steel 33 is a #3 angle steel. One end is welded and fixed to the iron plate of the pulley mechanism 31, and the other end is connected to the gas-shielded welding machine via the connecting chain 32. The structural strength of the angle steel ensures the stability of the welding machine suspension and prevents swaying. The connecting chain 32 can be selected from conventional load-bearing chains (with a load-bearing capacity of not less than 100kg) according to the weight of the welding machine, and the chain length can be finely adjusted to adapt to different working height requirements. In addition, the iron plate of the pulley mechanism 31 has a channel for the welding gun cable to pass through, and the cable moves synchronously with the pulley mechanism 31 to avoid dragging on the ground.

[0034] In this embodiment, the welding machine can move flexibly along the guide rail without manual intervention, reducing the operator's labor intensity by 40%. The welding station switching time is shortened from 5-8 minutes to 1-2 minutes, increasing the efficiency of the assembly line by 25%. After the welding machine is suspended, the step space on the assembly line is completely freed up, allowing operators to walk without obstruction. The incidence of collision accidents drops from 3-5 per month to 0. At the same time, the distance between the welding machine and the steel mold is maintained at 0.8-1.2m, avoiding the risk of collision with the steel mold when moving the welding machine. The welding torch cable moves suspended without dragging on the ground, reducing the cable insulation damage rate from 2-3 times per quarter to 0 times, and the incidence of safety accidents such as leakage and short circuits is 0. The anti-fall buckle's anti-fall effect has been tested with 1.5 times the rated load (60kg), and the buckle can reliably lock onto the guide rail without the risk of falling. The height adjustment range of the support component (2.8-3.5m) can cover 6-12m. For the welding requirements of shield tunnel segments of various diameters, the splicable design of the guide rail can be adapted to workstation lengths of 4.4-17.6m, eliminating the need to repeatedly customize hanging mechanisms for different specifications of segments or workstations, reducing equipment investment costs by 30%; the stability of the welding machine during movement is improved, the welding torch alignment accuracy deviation is ≤1mm, the appearance qualification rate of butt welds is increased from the original 92% to 98%, the weld strength sampling inspection qualification rate is 100%, and the stray current protection design requirements are met (stray current density ≤0.1A / m²).

[0035] The applicant further declares that while the above embodiments illustrate the implementation method and apparatus structure of this utility model, this utility model is not limited to the above-described embodiments, meaning that this utility model must rely on the above methods and structures to be implemented. Those skilled in the art should understand that any improvements to this utility model, equivalent substitutions for the selected implementation methods, additions of steps, and selection of specific methods all fall within the protection and disclosure scope of this utility model.

[0036] This utility model is not limited to the above-described embodiments. All methods that use similar structures and methods to achieve the purpose of this utility model are within the protection scope of this utility model.

Claims

1. A guide rail bracket mechanism for a gas-shielded welding machine in a tunnel segment production line, characterized in that: It includes a support component (1), a guide rail component (2), and a moving component (3); The support assembly (1) includes at least two support columns (11) and a connecting steel plate (12), the connecting steel plate (12) being used to fix the guide rail assembly (2). The guide rail assembly (2) is an I-beam guide rail, which is welded and fixed to the support column (11) by connecting steel plate (12); The moving component (3) includes a pulley mechanism (31), a connecting chain (32), and a connecting angle steel (33); the pulley mechanism (31) is slidably mounted on the I-beam guide rail; the gas shielded welding machine is detachably connected to the pulley mechanism (31) through the connecting chain (32) and the connecting angle steel (33); the pulley mechanism (31) has a channel for the welding gun cable to pass through.

2. The guide rail bracket mechanism for a shield tunnel segment assembly line gas-shielded welding machine according to claim 1, characterized in that: The support component (1) is an adjustable height support component, including an outer column (13), an inner column (14) and a positioning component (15). The inner column (14) is nested inside the outer column (13), and the positioning component (15) passes through the outer column (13) and the inner column (14) to achieve height fixation.

3. The guide rail bracket mechanism for a shield tunnel segment assembly line gas-shielded welding machine according to claim 1, characterized in that: The guide rail assembly (2) is a splicable guide rail assembly, including at least two sections of I-beam guide rail (21) and splicing flange (22). The splicing flange (22) is fixed to both ends of the I-beam guide rail (21), and adjacent I-beam guide rails (21) are connected by splicing flange bolts.

4. The guide rail bracket mechanism for a shield tunnel segment assembly line gas-shielded welding machine according to claim 1, characterized in that: The height of the support column (11) is 3m, and the distance between two adjacent support columns (11) is 1.77m.

5. The guide rail bracket mechanism for a shield tunnel segment assembly line gas-shielded welding machine according to claim 1, characterized in that: The I-beam guide rail (21) is made of 10# I-beam, and there are 3 I-beam guide rails (21). The length of a single I-beam guide rail (21) is 4.4m.

6. The guide rail bracket mechanism for a shield tunnel segment assembly line gas-shielded welding machine according to claim 1, characterized in that: The connecting angle steel (33) is a No. 3 angle steel. One end of the connecting angle steel (33) is welded and fixed to the pulley mechanism (31), and the other end is connected to the gas shielded welding machine through the connecting chain (32).

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